JP3149714U - Support for fast fixing - Google Patents

Abstract

Kind Code: A1 A kind of a fast fixing support rod is provided.
An external bushing has an opening at one end. One end of the internal bushing is inserted into the opening of the external bushing. The inner bushing forms an axial movement relationship with respect to the outer bushing. A fast fastening device is attached to the outer edge of the internal bushing, and the fast fastening device is connected to the external bushing, and the fast fastening device is movable between a fixed position and a loosened position, and the fast fastening device Depending on the selection, the correlation position between the outer bushing and the inner bushing can be limited. The adjustment ring is attached to the outer edge of the external bushing opening, and the quick fastening device is interlocked by the adjustment ring. When the fast fastening device is in a fixed state, the adjustment ring is interlocked with the internal bushing. , Can move relative to the external bushing.
[Selection] Figure 2

Description

The present invention relates to a support rod, and more particularly to a support rod in which a kind of external bushing and internal bushing can be fixed at a correlation position and the correlation position can be adjusted steplessly.

The cargo support device disclosed in US Pat. No. 6,247,882 has an outer bushing, which is suitable for loading into the outer bushing and provides a plurality of retaining holes in the axial direction of the outer edge of the inner bushing. A fixed base is provided on the external bushing. The elastic lever is pivoted on the fixed base with elasticity. The pawl spring plate is pivotally mounted on the fixed base, and is held in the retaining hole of the internal bushing under the pressure of the elastic lever. The safety ejecting bar is allowed to slide through the fixed base from the lateral direction, and the safety ejecting bar has a large and small diameter, and the pivoting of the elastic lever can be limited by selection.

In the prior art structure, it is necessary to form a plurality of retaining holes on the internal bushing, and it is necessary to operate the elastic lever to fix the external bushing and the internal bushing at different telescopic positions. Providing many holes in the internal bushing reduces the strength. Therefore, when hanging a heavy object, the retaining hole has a drawback that the hole becomes large and cannot be stably supported by the pawl of the fixing device. Further, positioning when changing the length in the fixing device is not convenient because the external bushing and the internal bushing cannot be attached to the correlated position unless they are aimed at the fixed holes at regular intervals. Accordingly, the drilling of the internal bushing by production is expensive, but the processing is difficult, the position of the fastening hole is difficult to aim, and the elastic lever cannot be fastened to some of the fastening holes. Not only that, the support feet on both ends of the inner and outer bushings of the stepped adjustment mechanism leave a slight gap on the top and bottom surfaces, and reach the top and bottom surfaces. It was necessary. There is an urgent need to improve the above-mentioned problems.

US Pat. No. 6,247,882

The present invention provides a kind of fast fixing support rod for the above technical problem. That is, the main purpose of the present invention is that there is no need to adjust the hole at intervals on the internal bushing, and the correlation position between the external bushing and the internal bushing can be adjusted steplessly, thereby improving the structural strength. It is to provide a kind of fast anchoring support rod.

Also, the next object of the present invention is to allow the quick fastening device to quickly fix and release the correlation position restriction between the external bushing and the internal bushing, and when the adjusting ring fixes the external bushing and the internal bushing by the fast fastening device. Another object of the present invention is to provide a kind of fast fixing support rod that can adjust the correlation position between the external bushing and the internal bushing by the thread structure.

In order to solve the above-described problems, the present invention provides a fast fixing support rod having an external bushing, having an opening at one end thereof, and having an internal bushing, and one end thereof is formed at the opening of the external bushing. The inner bushing forms an axial movement relationship with the outer bushing, the fast fastening device is provided at the outer edge of the inner bushing, and the fast fastening device is provided at the outer edge of the outer bushing. The fast fastening device is movable between a fixed position and a loosened position, and when the fast fastening device is in the fixed position, the correlation position between the inner bushing and the outer bushing is fixed. When in the loosened position, the rapid clamping device loosens the internal bushing and the external bushing, and an adjustment ring is provided at an outer edge of the external bushing opening, and the adjustment ring is coupled with the rapid clamping device. Move synchronously When 該快 with speed clamping device is in a fixed position, said adjusting ring is in conjunction with apparatus equipped 該快 speed tightening, thus being moved to the external bushing.

The present invention has the following advantages.
<I> The fast fixing support rod according to the present invention can adjust the correlation position between the external bushing and the internal bushing in a stepless manner, so there is no need to make a hole on the internal bushing and improve the structural strength. The service life can be extended.

<B> The fast fastening device of the fast fixing support rod according to the present invention can quickly fix and release the correlation position restriction between the external bushing and the internal bushing. In addition, the adjusting ring can adjust the correlation position between the external bushing and the internal bushing by the thread structure when the external bushing and the internal bushing are fixed by the fast fastening device.

It is a three-dimensional external view showing a fast fixing support rod according to the present invention. It is a three-dimensional exploded view showing a fast fixing support rod according to the present invention. FIG. 3 is a schematic cross-sectional view taken along the line 3-3 shown in FIG. 1 according to the present invention. FIG. 4 is a schematic cross-sectional view taken along line 4-4 shown in FIG. 1 according to the present invention. It is a mode figure which shows operation | movement of the support rod of the rapid fixation by this invention. It is a mode figure which shows operation | movement of the support rod of the rapid fixation by this invention. It is an aspect figure which shows use of the support rod of the rapid fixation by this invention.

The technique, means, and effect of the present invention will be described as follows in combination with a preferred embodiment and a diagram. However, the claims of the present invention are not limited to these structures.

FIG. 1 shows a three-dimensional external view of the present invention. In the figure, the present invention includes an external bushing 10, an internal bushing 20, a coupling device 30, a rapid fastening device 40, and an adjustment ring 50.

2 to 4 show a three-dimensional exploded view and a sectional view according to the present invention. In the figure, the external bushing 10 has a first end 101 and a second end 102, an opening portion 11 is provided in the axial direction of the first end 101, and a support portion 12 is provided at the second end 102. The support portion 12 can be supported on the bottom surface.

The inner bushing 20 is loaded into the outer bushing 10 and forms a relative axial movement relationship. The internal bushing 20 has a first end 201 and a second end 202, the first end 201 is passed through the opening 11 of the external bushing 10, the second end 202 is provided with a support portion 21, and the internal bushing 20 The support portion 21 can be supported on the top surface.

The connecting device 30 includes a pedestal 31 and a fastening ring 32, and has a coupling end 311 at one end of the pedestal 31, the coupling end 311 passes through the opening 11 of the external bushing 10, and the coupling end 311 is external bushing. 10 and the internal bushing 20. The pedestal 31 has a male thread 312 at the outer edge opposite to the coupling end 311. The outer diameter of the male thread 312 is larger than the outer diameter of the coupling 311, so that the pedestal 31 is open to the outer bushing 10. 11, and two guide grooves 313 are provided in the longitudinal direction on the periphery of the opposite end of the coupling end 311 of the pedestal 31. Of these, the pedestal 31 may be formed integrally with the external bushing 10.

Two fitting portions 321 are provided on the outer edge portion of one end of the fastening ring 32, and a receiving groove 322 is provided on the other end. A fixing groove 323 is formed between the fitting portion 321 and the receiving groove 322. The two fitting portions 321 correspond to the two guide grooves 313 on the pedestal 31. By fitting the fitting portions 321 of the fastening ring 32 into the guide grooves 313 of the pedestal 31 in the vertical direction, the fastening ring 32 is externally attached. It is not rotated with respect to the bushing 10. The rapid fastening device 40 is attached to the receiving groove 322. A part of the fastening ring 32 is cut to form a notch 324 extending in the longitudinal direction, and the fastening ring 32 can be tightened and loosened elastically. The fast tightening device 40 selectively tightens the tightening ring 32 to form a fixed and extendable form on the external bushing 10 and the internal bushing 20, and limit the follow-up movement of the external bushing 10 and the internal bushing 20.

The fast fastening device 40 is provided in the receiving groove 322 of the fastening ring 32, and the fastening ring 32 can be tightened or loosened by operating the fast fastening device 40. When the fastening ring 32 is fastened by the rapid fastening device 40, the fastening ring 32 fastens the outer edge portion of the internal bushing 20, and the internal bushing 20 does not move with respect to the fastening ring 32. On the other hand, when the fast fastening device 40 loosens the fastening ring 32, the fast fastening device 40 and the internal bushing 20 are separated from the outer edge portion, and the internal bushing 20 starts to move with respect to the fastening ring 32. The rapid tightening device 40 may be a rapid removal mechanism. The following movement of the external bushing 10 and the internal bushing 20 can be quickly limited by selection.

The adjustment ring 50 can finely adjust the correlation position between the outer bushing 10 and the inner bushing 20 in the axial direction. The inner edge of the adjustment ring 50 has a female thread 51, and the female thread 51 of the adjustment ring 50 can be screwed into the male thread 312 of the pedestal 31 so that the following movement of the adjustment ring 50 and the pedestal 31 can be adjusted. The adjustment ring 50 and the pedestal 31 can finely adjust the following movement of the external bushing 10 and the internal bushing 20 by a screw thread mechanism. The adjustment ring 50 is provided with a protrusion 52 on the inner edge of the opposite end of the external bushing 10, the protrusion 52 of the adjustment ring 50 is fitted in the fixing groove 323 of the tightening ring 32, and the adjustment ring 50 is operated. By adjusting the correlation position with the pedestal 31, the adjustment ring 50 starts to interlock with the tightening ring 32.

5 and 6, reference is made to the operation diagram according to the present invention. The rapid fastening device 40 can quickly limit the follow-up movement of the external bushing 10 and the internal bushing 20. The fast fastening device 40 is a fast removal mechanism that can fasten or loosen the fastening ring 32 quickly.

When the fastening ring 32 is loosened by the fast fastening device 40 and is in a loosened state, the internal bushing 20 can operate the correlation position with the external bushing 10. On the other hand, even if the adjusting ring 50 is turned when the tightening ring 32 is fitted into the base 31 and the tightening ring 32 and the internal bushing 20 are loosened, the adjusting ring 50 moves following the external bushing 10 and the internal bushing 20. Can not do it.

When the fastening ring 32 is fastened and fastened by the fast fastening device 40, the internal bushing 20 cannot operate the correlation position with the external bushing 10. At this time, the fastening ring 32 is fitted into the pedestal 31 and, at the same time, the internal bushing 10 is fastened by the fastening ring 32 to be in a fixed state. Therefore, when the adjustment ring 50 is rotated at this time, the adjustment ring 50 can interlock the following movement of the external bushing 10 and the internal bushing 20.

Please refer to FIG. When the support rod according to the present invention is used, the correlation position between the outer bushing 10 and the inner bushing 20 can be adjusted steplessly by loosening the fast fastening device 40 and leaving the fastening ring 32 in a loose state. After the support parts 12 and 21 of the outer bushing 10 and the inner bushing 20 support the bottom surface 60 and the top surface 70, respectively, the fast fastening device 40 is fastened to a fixed state. At this time, since the two support portions 12 and 21 have not yet stably supported the bottom surface 60 and the top surface 70, the adjustment ring 50 is finally turned so that the support portions 12 and 21 of the external bushing 10 and the internal bushing 20 are connected. By pressing the bottom surface 60 and the top surface 70, the support rod can stably support the bottom surface 60 and the top surface 70. As described above, the fast fastening device 40 and the adjustment ring 50 according to the present invention allow the support rod to support the bottom surface 60 and the top surface 70 at a high speed and in a stepless manner.

DESCRIPTION OF SYMBOLS 10 External bushing 101 1st end 102 2nd end 11 Opening part 12 Support part 20 Internal bushing 201 1st end 202 2nd end 21 Support part 30 Connection apparatus 31 Base 311 Coupling end 312 Male thread part 313 Guide groove 32 Fastening 321 Fit-in portion 322 Accommodating groove 323 Fixing groove 324 Notch 40 Fast fastening device 50 Adjusting ring 51 Female thread portion 52 Projection portion 60 Bottom surface 70 Top surface

Claims (3)

In the support cage for fast fixing,
Has an external bushing, has an opening at one end,
Having an internal bushing, one end of which is inserted into the opening of the external bushing, the internal bushing forming an axial movement relationship with the external bushing;
A rapid clamping device is provided at the outer edge of the internal bushing, and the rapid clamping device is connected to an outer edge of the external bushing, and the rapid clamping device is movable between a fixed position and a loosened position. Yes, when the fast clamping device is in the fixed position, the correlation position of the inner bushing and the outer bushing is fixed, and when in the loosened position, the fast fastening device loosens the inner bushing and the outer bushing,
An adjustment ring is provided at the outer edge of the external bushing opening, and the adjustment ring is synchronously moved in conjunction with the fast fastening device. When the fast fastening device is in a fixed position, the adjustment ring is A fast-fixing support rod characterized in that the clamping device moves in conjunction with the external bushing. A coupling device, the coupling device including a clamping ring, the clamping ring being inserted into the inner bushing, the clamping ring having a receiving groove at an opposite end of the outer bushing, and the fast clamping The device is mounted in the receiving groove, and the fast clamping device optionally tightens the clamping ring so that the clamping ring clamps the internal bushing, the coupling device further includes a pedestal, and one end of the pedestal The coupling end is coupled to the opening of the outer bushing, the pedestal is provided with a male thread on the outer edge opposite the coupling end, and the male thread on the inner surface of the adjustment ring And a fixing groove on the outer edge of the tightening ring, a protrusion on the inner edge of the adjustment ring, and fitting the protrusion into the fixing groove. The adjustment ring interlocks the clamping ring and the pedestal is opposite the coupling end A guide groove is provided in the axial direction of the inner peripheral surface, the fastening ring is provided with a fitting portion in the axial direction opposite to the rapid fastening device, the fitting portion is provided in the guide groove, and the fastening ring A fixing groove is provided between the fitting portion and the receiving groove, and a part of the fastening ring is cut to form a longitudinal notch, and when the fast fastening device fastens the fastening ring, The clamping ring moves in conjunction with the clamping ring, and when the rapid clamping device loosens the clamping ring, the adjustment ring does not interlock the clamping ring, and the external bushing is connected to the first end and the first ring. Two ends, forming an opening at a first end of the outer bushing, and forming a support at a second end of the outer bushing, the inner bushing having a first end and a second end, The first end of the inner bushing passes through the outer bushing, and the second end of the inner bushing forms a support. To support the rapid fixation of claim 1, wherein culm. A coupling device, the coupling device including a clamping ring, the clamping ring being inserted into the inner bushing, the clamping ring having a receiving groove at an opposite end of the outer bushing, and the fast clamping The device is mounted in the receiving groove, the fast clamping device is optionally tightened on the clamping ring, the clamping ring clamps the inner bushing, and the outer bushing is externally threaded at the outer edge of the opening. The inner ring surface of the adjustment ring is provided with the male screw thread part and the female screw thread part for screw connection, the fastening ring has a fixing groove, and the inner ring surface of the adjustment ring is provided with a protrusion, The protrusion is fitted into the fixed groove, a guide groove is provided on the inner peripheral surface of the external bushing, the fastening ring is provided with a fitting portion in the axial direction opposite to the rapid clamping device, and the fitting portion is the guide. The fixing groove of the fastening ring is provided in the groove, and When the clamping ring is clamped by the fast clamping device, the adjustment ring is used to cut the clamping ring. When the fastening device loosens the clamping ring, the adjusting ring does not interlock the adjusting ring, the outer bushing has a first end and a second end, and the first of the outer bushings The end forms the opening, the second end of the outer bushing forms a support, the inner bushing has a first end and a second end, and the first end of the inner bushing defines the outer bushing. The fast-fixing support rod according to claim 1, wherein the second end of the internal bushing forms a support portion.