CN204477167U - A kind of double buffering front shock absorber - Google Patents

Abstract

The utility model relates to the technical field of vibration damper, be specially a kind of double buffering front shock absorber, the front fork tube comprising damper cylinder and be slidably connected with damper cylinder, piston rod is provided with between damper cylinder and front fork tube inner chamber, auxiliary buffer bar is provided with in front fork tube, be provided with the first damping device in the termination of front fork tube, be provided with buffer between mounting groove bottom the outer wall of piston rod and damper cylinder, the first damping device is provided with the accommodating chamber with buffer adaptation.The utility model is rational in infrastructure, simple, good damping effect, and comfort property is strong.

Description

A double buffer front shock absorber

technical field

The utility model relates to the technical field of shock absorbers, in particular to a double buffer front shock absorber.

Background technique

There will be a front shock absorber between the front wheel and the handlebar on the motorcycle. The front shock absorber has the effect of buffering force during the running of the friction car, especially when the motorcycle is running on an uneven road. , If there is no front shock absorber, the force generated on the road will affect the driver's operation and cause a car accident.

The current front shock absorber is a single buffer structure. When it is subjected to a strong impact, it will produce rigid contact and harmful impact on the human body due to insufficient buffer force. Furthermore, the guiding performance of the spring compression is very low.

Utility model content

Aiming at the deficiencies in the prior art, the purpose of the utility model is to provide a double buffer front shock absorber with reasonable and simple structure, good shock absorption effect and strong comfort performance.

In order to achieve the above object, the utility model provides the following technical solutions:

A double-buffer front shock absorber is characterized in that it includes a shock absorber and a front fork tube that is slidably connected to the shock absorber, a piston rod is provided between the shock absorber and the inner cavity of the front fork tube, and an auxiliary shaft is arranged in the front fork tube. Buffer rod, the end of the front fork tube is provided with a first buffer device, a buffer is provided between the outer wall of the piston rod and the installation groove at the bottom of the shock absorber, and the first buffer device is provided with an accommodation chamber adapted to the buffer room.

Further, the auxiliary buffer rod includes a base and a rod body connected to each other, an annular groove is opened on the outer wall of the base, a shock absorbing pad is arranged in the annular groove, a first spring set is arranged between the base and the rod body, and the rod body Elastic rubber is arranged on the end opposite to the base.

Further, the piston rod includes interconnected limiting ends and the rod, the limiting ends are provided with grooves adapted to the elastic rubber, and the side walls of the limiting ends are provided with gaskets. The inner wall of the front fork tube is provided with a second spring group connected with the limit terminal in a limit position.

Further, the first buffer device includes a bushing and a booster valve system, the bushing is provided with an accommodating chamber slidingly connected with the buffer, and the booster valve system is provided with a third spring set.

Further, the end of the main rod opposite to the limiting end is connected with the damping cylinder through a screw.

Further, a stabilizer and an elastic sealing ring are provided between the opening of the shock absorbing cylinder and the outer wall of the front fork tube.

Compared with the deficiencies of the prior art, the beneficial effects brought by the technical solution of the utility model:

The front shock absorber of the present application, through the setting of the elastic rubber on the auxiliary buffer bar and the setting of the first buffer device, adds a secondary buffer design to the traditional single buffer structure, effectively solving the problem of strong shocks encountered by users during use. Rigid contact due to insufficient cushioning force and harmful impact on the human body. The setting of the first spring group, the second spring group and the third spring group maintains the comfort of the product and improves the overall cushioning performance of shock absorption; the second spring group and the third spring group are respectively arranged at the limit end And the booster valve system improves the guiding performance of the spring compression and reduces the movement friction.

Description of drawings

Fig. 1 is a structural sectional view of the utility model.

Fig. 2 is a cross-sectional view of the structure of the utility model in an initial state.

Detailed ways

As shown in Figures 1-2: a double buffer front shock absorber, including a shock absorber 1 and a front fork tube 2 slidingly connected with the shock absorber 1, between the shock absorber 1 and the inner cavity of the front fork tube 2 The piston rod 3 is provided, the front fork tube 2 is provided with an auxiliary buffer rod 7, the end of the front fork tube 2 is provided with a first buffer device 4, and the end of the front fork tube 2 is provided with a mounting groove, the first The buffer device 4 is fixed to the limit of the mounting groove, and a buffer 5 is arranged between the outer wall of the piston rod 3 and the mounting groove at the bottom of the shock absorbing cylinder 1. The buffer 5 includes an extending section 51 and a limiting section 52, and The diameter of 52 is greater than that of the section 51, and the outer wall of the section 51 is inclined. The first buffer device 4 is provided with an accommodating chamber 420 adapted to the buffer 5. The diameter of the limiting section 52 of the buffer 5 is the same as The housing chambers 420 have equal diameters.

The auxiliary buffer rod 7 includes a base 71 and a rod body 72 that are connected to each other. The outer wall of the base 71 is provided with an annular groove, and a shock absorbing pad 710 is arranged in the annular groove. In the set 61 , an elastic rubber 73 is provided on the end of the rod body 72 opposite to the base 71 . When the front fork tube 2 slides relatively in the shock absorber 1, when the front fork tube 2 rebounds backward, the first spring group 61 plays a role in reducing the rebound force of the front fork tube 2, assisting the first buffer device 4 to lower Resilience causes harm to the human body.

Piston rod 3 comprises interconnected limit end 31 and this rod 32, and limit end 31 is provided with the groove chamber that is adapted with elastic rubber 73, and the side wall of limit end 31 is provided with gasket, The inner wall of the front fork tube 2 is provided with a second spring group 62 which is limitedly connected with the limiting end 31 . When the front fork tube 2 relatively slides in the shock absorber 1, the front fork tube 2 moves toward the bottom of the shock absorber 1, because the second spring group 62 is connected to the upper limit of the limit end 31, the second spring group 62 can be extruded to produce a set of shock absorbing buffer force, which alleviates the impact of the auxiliary buffer body on the movable rod and the impact force of the front fork tube 2 on the shock absorbing cylinder 1.

Moreover, an elastic rubber 73 is provided on the auxiliary buffer rod 7. During the operation of the front fork tube 2, the elastic rubber 73 will contact the groove inner wall on the limit end 31 of the piston rod 3, and the elastic rubber 73 has played a role again. The function of shock absorption and buffering.

The first buffer device 4 includes a bushing 41 and a booster valve system 42 . The bushing 41 has an accommodating chamber 420 slidingly connected with the buffer 5 , and the booster valve system 42 has a third spring set 63 outside. When the front fork tube 2 slides relatively in the shock absorber 1, when the front fork tube 2 runs to the bottom of the shock absorber 1, the accommodating chamber 420 in the bushing 41 of the first buffer device 4 contacts with the buffer 5, and the buffer The protruding section 51 of 5 extends into the accommodation chamber 420, and the outer wall of the limiting section 52 is attached to the inner wall of the accommodation chamber 420 to prevent the front fork tube 2 from running forward and play a role of shock absorption and buffering. When the front fork tube 2 rebounds backwards, since the booster valve system 42 is provided with a third spring group 63, the third spring group 63 will touch the outer wall of the limit end 31, and the third spring group 63 will be squeezed. When it is pressed, it will produce a force that reduces the rebound force, preventing rigid contact and harmful impact on the human body due to insufficient cushioning force.

One end of the rod 32 opposite to the limit end 31 is connected with the shock absorber 1 through a screw 8 .

A stabilizer 11 and an elastic sealing ring 12 are provided between the opening of the shock absorber 1 and the outer wall of the front fork tube 2 . When the front fork tube 2 slides in the shock absorber 1, the stabilizer 11 can ensure that the front fork tube 2 is in a linear reciprocating motion in the shock absorber 1, which greatly improves the operational structure stability of the front fork tube 2.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Those skilled in the art will make common changes and replacements within the scope of the technical solution of the utility model, which should be included in the protection of the utility model. within range.

Claims (6)

1. A double-buffer front shock absorber is characterized in that: it comprises a shock absorber and a front fork tube which is slidably connected with the shock absorber, a piston rod is arranged between the shock absorber and the inner chamber of the front fork tube, and the front fork tube is provided with a There is an auxiliary buffer rod, and the end of the front fork tube is provided with a first buffer device, and a buffer is provided between the outer wall of the piston rod and the installation groove at the bottom of the shock absorber, and the first buffer device is provided with a Hold the chamber. 2. A double-buffer front shock absorber according to claim 1, characterized in that: said auxiliary buffer rod includes a base and a rod body connected to each other, and an annular groove is opened on the outer wall of the base, and inside the annular groove A shock-absorbing pad is provided, a first spring group is provided between the base and the rod body, and elastic rubber is provided on the end of the rod body opposite to the base. 3. A double-buffer front shock absorber according to claim 1, characterized in that: the piston rod includes a limiting end connected to each other and the rod, and the limiting end is provided with an elastic rubber adapter. The groove cavity, the side wall of the limit end is provided with a gasket, and the inner wall of the front fork tube is provided with a second spring group connected with the limit end. 4. A double-buffer front shock absorber according to claim 1, characterized in that: the first buffer device includes a bushing and a booster valve system, and the bushing is provided with an accommodating chamber slidingly connected with the buffer , the booster valve system is provided with a third spring group. 5. A double-buffer front shock absorber according to claim 2, characterized in that: the end of the rod opposite to the limiting end is connected to the shock absorber via a screw. 6. The double buffer front shock absorber according to claim 1, characterized in that: a stabilizer and an elastic sealing ring are provided between the opening of the shock absorber and the outer wall of the front fork tube.