Motorcycle shock absorber preloading and damping adjusting assembly

Abstract

The utility model discloses a motorcycle shock absorber preload and damping adjusting assembly, a preload adjusting set comprises a spring supporting seat, a transverse pin, a preload adjusting ejector rod and a preload adjusting knob which are sequentially installed from bottom to top along the axis of a shock absorber outer pipe, and when the preload adjusting knob is rotated, the preload adjusting ejector rod is driven to rotate and move up and down at the same time; the damping spring is driven to extend or retract through the transverse pin and the spring supporting seat in sequence, so that spring preload adjustment is realized; the damping adjusting set is installed in the preload adjusting set and comprises a damping adjusting ejector rod, a damping adjusting axis and a damping adjusting button which are sequentially installed from bottom to top along the axis of the shock absorber outer pipe, and when the damping adjusting button is rotated, the damping adjusting axis is driven to rotate and move up and down at the same time; and the damping adjusting oil needle is driven to move up and down through the up-down movement of the damping adjusting ejector rod, so that the flow of the damping oil hole is adjusted. The preloading and damping adjusting assembly is installed on the end cover of the motorcycle shock absorber, can be independently adjusted, does not interfere with each other, and is convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle shock absorbers, and particularly relates to a preload and damping adjustment component for a motorcycle shock absorber. Background Art

[0002] In a motorcycle shock absorber, a shock-absorbing spring is installed inside an outer tube. Usually, a spring preload adjustment component is provided on an end cap to adjust the preload of the shock-absorbing spring to meet the personalized needs of different riders. However, the existing shock-absorbing spring preload adjustment structure is complex and requires special tools and professionals for adjustment, which brings inconvenience to the use of riders. Summary of the Utility Model

[0003] The utility model aims to provide a preload and damping adjustment component for a motorcycle shock absorber, which integrates preload and damping adjustment, has a simple structure, and can be adjusted by the rider himself, making it convenient to use.

[0004] For this reason, the technical solution adopted by the utility model is as follows: a preload and damping adjustment component for a motorcycle shock absorber, which includes an outer tube of the shock absorber, an end cap, a shock-absorbing spring, and a damping adjustment oil needle, and further includes a preload adjustment group and a damping adjustment group;

[0005] The preload adjustment group includes a spring support seat, a transverse pin, a preload adjustment top rod, and a preload adjustment knob, which are sequentially installed from bottom to top along the axis of the shock absorber outer tube. The preload adjustment knob is only rotatably installed on the end cap. The front end of the preload adjustment knob is a square rod portion, and the square rod portion extends into a square hole of the preload adjustment top rod. The preload adjustment top rod is installed in a threaded hole of the end cap through an external thread. The transverse pin horizontally passes through a first elongated hole formed in the end cap and extending up and down. The preload adjustment top rod, the transverse pin, the spring support seat, and the shock-absorbing spring are sequentially abutted and installed. When the preload adjustment knob is rotated, while driving the preload adjustment top rod to rotate, it moves up and down, and sequentially drives the shock-absorbing spring to elongate or shorten through the transverse pin and the spring support seat, thereby realizing the adjustment of the spring preload;

[0006] The damping adjustment group is installed inside the preload adjustment group and includes a damping adjustment top rod, a damping adjustment axis, and a damping adjustment knob, which are sequentially installed from bottom to top along the axis of the shock absorber outer tube. The damping adjustment knob is only rotatably installed on the preload adjustment knob. The lower end of the damping adjustment knob is connected to a card slot of the damping adjustment axis. The damping adjustment axis is installed in a threaded hole of the preload adjustment knob through an external thread. The damping adjustment axis, the damping adjustment top rod, and the damping adjustment oil needle are sequentially abutted and installed. The damping adjustment top rod is provided with a second elongated hole extending up and down for the transverse pin to pass through. When the damping adjustment knob is rotated, while driving the damping adjustment axis to rotate, it moves up and down, and drives the damping adjustment oil needle to move up and down through the up and down movement of the damping adjustment top rod, thereby realizing the adjustment of the flow rate of the damping oil hole.

[0007] Preferably, the preload adjustment knob includes a preload adjustment knob body and a preload adjustment shaft center. A preload adjustment shaft center fixing seat is fixedly installed in the end cover by means of threads. The preload adjustment knob body is located outside the end cover. The preload adjustment shaft center is rotatably installed in the preload adjustment shaft center fixing seat. The preload adjustment knob body is non-rotatably sleeved on the outer end of the preload adjustment shaft center.

[0008] More preferably, the damping adjustment knob includes a damping adjustment knob body and a rotating shaft. The damping adjustment knob body is non-rotatably sleeved on the outer end of the rotating shaft and fixed together by fastening screws.

[0009] More preferably, between the preload adjustment knob body and the preload adjustment shaft center, and between the damping adjustment knob body and the rotating shaft, non-rotatable sleeve fittings are respectively achieved through hexagonal structures; the rotating shaft and the damping adjustment shaft center are connected through a "one"-shaped card slot.

[0010] More preferably, sealing rings are respectively arranged between the preload adjustment knob body and the end cover, between the preload adjustment shaft center and the preload adjustment shaft center fixing seat, between the preload adjustment shaft center fixing seat and the end cover, between the rotating shaft and the preload adjustment shaft center, and between the damping adjustment shaft center and the preload adjustment shaft center.

[0011] More preferably, a transverse hole is provided in the damping adjustment shaft center, and a cylindrical helical spring with steel balls at both ends is installed in the transverse hole. A number of vertical arc-shaped grooves are evenly spaced on the inner wall of the preload adjustment shaft center. When the damping adjustment shaft center rotates until the steel balls fall into a certain vertical arc-shaped groove, the sense of position can be increased and the damping adjustment amount can be judged.

[0012] More preferably, the lower end of the preload adjustment knob is an external hexagonal rod portion, and the square hole of the preload adjustment ejector rod is an internal hexagon.

[0013] More preferably, an air vent hole communicating with the inner cavity of the shock absorber is provided on the end cover, and an air vent screw is equipped.

[0014] Both ends of the transverse pin rest on the inner step of the spring support seat, and the shock-absorbing spring is sleeved on the outer step of the spring support seat.

[0015] The beneficial effects of the present utility model: The preload adjustment group composed of the preload adjustment knob, the preload adjustment ejector rod and the transverse pin, and the damping adjustment group composed of the damping adjustment knob, the damping adjustment ejector rod and the damping adjustment shaft center are integrally installed on the end cover of the motorcycle shock absorber, can be adjusted independently of each other without interference, with novel concept and ingenious design; when in use, by rotating the corresponding adjustment knobs respectively, the preload force or damping of the shock-absorbing spring can be adjusted, which is very convenient and fast. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a structural schematic diagram of the present utility model.

[0017] Figure 2 is Figure 1 the state after rotating 90° along the axis.

[0018] Figure 3 is the exploded view of the main components of the present utility model.

[0019] Figure 4 is Figure 1 the partial enlarged view of

[0020] Figure 5 is Figure 3 the partial enlarged view of Specific embodiments

[0021] The present utility model will be further described below by way of embodiments in conjunction with the accompanying drawings:

[0022] In conjunction with Figure 1 — Figure 5 As shown, a preload and damping adjustment assembly for a motorcycle shock absorber mainly consists of a shock absorber outer tube 1, an end cap 2, a shock spring 3, a damping adjustment needle 9, a preload adjustment group, and a damping adjustment group.

[0023] The preload adjustment group mainly consists of a spring support seat 4, a transverse pin 5, a preload adjustment top rod 6, and a preload adjustment knob 7. The spring support seat 4, the transverse pin 5, the preload adjustment top rod 6, and the preload adjustment knob 7 are sequentially installed along the axis of the shock absorber outer tube 1 from bottom to top. The preload adjustment knob 7 is only rotatably installed on the end cap 2. The front end of the preload adjustment knob 7 is a square rod portion, and the square rod portion extends into the square hole of the preload adjustment top rod 6. The preload adjustment top rod 6 is installed in the threaded hole of the end cap 2 through an external thread. While the preload adjustment top rod 6 rotates with the preload adjustment knob 7, it can also move up and down under the threaded structure. The first elongated hole 2a extending up and down is opened on the end cap 2, and the length of the first elongated hole 2a is set according to the need for spring preload adjustment. The transverse pin 5 horizontally passes through the first elongated hole 2a extending up and down opened on the end cap 2, and the preload adjustment top rod 6, the transverse pin 5, the spring support seat 4, and the shock spring 3 are sequentially abutted and installed. When the preload adjustment knob 7 is rotated, it drives the preload adjustment top rod 6 to rotate and move up and down at the same time, and sequentially drives the shock spring 3 to elongate or shorten through the transverse pin 5 and the spring support seat 4, thereby realizing spring preload adjustment.

[0024] For the convenience of installation and manufacturing, the preload adjustment knob 7 adopts a split structure. The preload adjustment knob 7 mainly consists of a preload adjustment knob body 7a and a preload adjustment axis 7b. A preload adjustment axis fixing seat 2b is fixedly installed in the end cap 2 through a thread. The preload adjustment knob body 7a is located outside the end cap 2, the preload adjustment axis 7b is rotatably installed in the preload adjustment axis fixing seat 2b, and the preload adjustment knob body 7a is anti-rotationally sleeved on the outer end of the preload adjustment axis 7b.

[0025] The damping adjustment group is installed inside the preload adjustment group and mainly consists of a damping adjustment push rod 10, a damping adjustment shaft center 11, and a damping adjustment knob 12 that are installed in sequence from bottom to top along the axis of the shock absorber outer tube 1. The damping adjustment knob 12 is only rotatably installed on the preload adjustment knob 7. The lower end of the damping adjustment knob 12 is connected to the card slot of the damping adjustment shaft center 11, and the damping adjustment shaft center 11 is installed in the threaded hole of the preload adjustment knob 7 through an external thread. The damping adjustment shaft center 11, the damping adjustment push rod 10, and the damping adjustment oil needle 9 are sequentially abutted and installed. The damping adjustment push rod 10 is provided with a second elongated hole 10a extending vertically for the lateral pin 5 to pass through. When the damping adjustment knob 12 is rotated, while driving the damping adjustment shaft center 11 to rotate, it moves up and down, and drives the damping adjustment oil needle 9 to move up and down through the up and down movement of the damping adjustment push rod 10, thereby realizing the adjustment of the flow rate of the damping oil hole.

[0026] For the convenience of installation and manufacturing, the damping adjustment knob 12 adopts a split structure and mainly consists of a damping adjustment knob body 12a and a rotating shaft 12b. The damping adjustment knob body 12a is anti-rotationally sleeved on the outer end of the rotating shaft 12b and fixed together through a fastening screw 12c.

[0027] Preferably, between the preload adjustment knob body 7a and the preload adjustment shaft center 7b, and between the damping adjustment knob body 12a and the rotating shaft 12b, anti-rotation sleeves are respectively realized through a hexagonal structure, or it can also be a flat square or a square structure to prevent relative rotation; the rotating shaft 12b is connected to the damping adjustment shaft center 11 through a "one" character card slot, or it can also be a "cross" character card slot, and this is not limited thereto.

[0028] In addition, between the preload adjustment knob body 7a and the end cover 2, between the preload adjustment shaft center 7b and the preload adjustment shaft center fixing seat 2b, between the preload adjustment shaft center fixing seat 2b and the end cover 2, between the rotating shaft 12b and the preload adjustment shaft center 7b, and between the damping adjustment shaft center 11 and the preload adjustment shaft center 7b, sealing rings are respectively provided.

[0029] The damping adjustment shaft center 11 is provided with a transverse hole, and a cylindrical helical spring 14 with steel balls 13 at both ends is installed in the transverse hole. A number of vertical arc-shaped grooves 7c are evenly spaced on the inner wall of the preload adjustment shaft center 7b; when the damping adjustment shaft center 11 rotates to make the steel balls 13 fall into a certain vertical arc-shaped groove 7c, it can increase the sense of position and judge the damping adjustment amount. When adjusting the damping, determine how many degrees to rotate each time according to the designed parameters.

[0030] ]The lower end of the preload adjustment knob 7 is an external hexagonal rod part, and the square hole of the preload adjustment push rod 6 is an internal hexagonal, or it can also be a flat square or a square structure to prevent relative rotation.

[0031] ]An air vent communicating with the inner cavity of the shock absorber is provided on the end cap 2, and an air release screw 8 is installed.

[0032] Internal and external steps are provided on the spring support seat 4. Both ends of the transverse pin 5 rest on the inner step of the spring support seat 4, and the shock absorber spring 3 is sleeved on the outer step of the spring support seat 4.

[0033] Preload adjustment method: Hold the preload adjustment knob body 7a and rotate it. The preload adjustment axis 7b rotates synchronously. Since the outer hexagonal rod part of the preload adjustment axis 7b extends into the inner hexagonal hole of the preload adjustment push rod 6, the preload adjustment push rod 6 is driven to rotate. However, since the preload adjustment push rod 6 is threadedly connected to the end cap 2, the preload adjustment push rod 6 moves up and down while rotating. The front end of the preload adjustment push rod 6 abuts against the transverse pin 5, and the shock absorber spring 3 is driven to elongate or shorten through the transverse pin 5 and the spring support seat 4 in sequence.

[0034] Damping adjustment method: Hold the damping adjustment knob body 12a and rotate it. The rotating shaft 12b rotates synchronously. Since the lower end of the rotating shaft 12b is connected to the damping adjustment axis 11 through a "one" - shaped card slot, and the damping adjustment axis 11 is installed in the threaded hole of the preload adjustment knob 7 through external threads, the damping adjustment axis 11 moves up and down while rotating, thereby pushing the damping adjustment push rod 10 to move up and down. Finally, the damping adjustment needle 9 is pushed to move up and down, so as to realize the adjustment of the flow rate of the damping oil hole.

Claims

1. A preload and damping adjustment assembly for a motorcycle shock absorber, comprising a shock absorber outer tube (1), an end cap (2), a shock spring (3), and a damping adjustment oil needle (9), characterized in that: It also includes a preload adjustment group and a damping adjustment group; The preload adjustment group includes a spring support seat (4), a transverse pin (5), a preload adjustment jack rod (6) and a preload adjustment knob (7) which are sequentially installed from bottom to top along the axis of the shock absorber outer tube (1). The preload adjustment knob (7) is only rotatably installed on the end cap (2). The front end of the preload adjustment knob (7) is a square rod portion, and the square rod portion extends into the square hole of the preload adjustment jack rod (6). The preload adjustment jack rod (6) is installed in the threaded hole of the end cap (2) through an external thread. The transverse pin (5) transversely passes through the first elongated hole (2a) extending up and down opened on the end cap (2). The preload adjustment jack rod (6), the transverse pin (5), the spring support seat (4) and the shock absorber spring (3) are sequentially abutted and installed. When the preload adjustment knob (7) is rotated, while driving the preload adjustment jack rod (6) to rotate, it moves up and down, and sequentially drives the shock absorber spring (3) to elongate or shorten through the transverse pin (5) and the spring support seat (4), thereby realizing the adjustment of the spring preload; The damping adjustment group is installed in the preload adjustment group and includes a damping adjustment jack rod (10), a damping adjustment axis (11) and a damping adjustment knob (12) which are sequentially installed from bottom to top along the axis of the shock absorber outer tube (1). The damping adjustment knob (12) is only rotatably installed on the preload adjustment knob (7). The lower end of the damping adjustment knob (12) is connected to the card slot of the damping adjustment axis (11). The damping adjustment axis (11) is installed in the threaded hole of the preload adjustment knob (7) through an external thread. The damping adjustment axis (11), the damping adjustment jack rod (10) and the damping adjustment needle (9) are sequentially abutted and installed. The damping adjustment jack rod (10) is provided with a second elongated hole (10a) extending up and down for the transverse pin (5) to pass through. When the damping adjustment knob (12) is rotated, while driving the damping adjustment axis (11) to rotate, it moves up and down, and drives the damping adjustment needle (9) to move up and down through the up and down movement of the damping adjustment jack rod (10), thereby realizing the adjustment of the flow rate of the damping oil hole.

2. The preload and damping adjustment assembly of a motorcycle shock absorber according to claim 1, wherein: The preload adjustment knob (7) includes a preload adjustment knob body (7a) and a preload adjustment axis (7b). A preload adjustment axis fixing seat (2b) is fixedly installed in the end cap (2) through a thread. The preload adjustment knob body (7a) is located outside the end cap (2). The preload adjustment axis (7b) is rotatably installed in the preload adjustment axis fixing seat (2b). The preload adjustment knob body (7a) is anti-rotationally sleeved on the outer end of the preload adjustment axis (7b).

3. The preload and damping adjustment assembly for a motorcycle shock absorber according to claim 2, characterized in that: The damping adjustment knob (12) includes a damping adjustment knob body (12a) and a rotating shaft (12b). The damping adjustment knob body (12a) is anti-rotationally sleeved on the outer end of the rotating shaft (12b) and is fixed together through a fastening screw (12c).

4. The motorcycle shock absorber preload and damping adjustment assembly according to claim 3, characterized in that: Between the preload adjustment knob body (7a) and the preload adjustment axis (7b), and between the damping adjustment knob body (12a) and the rotating shaft (12b), anti-rotationally sleeved is realized through a hexagonal structure respectively. The rotating shaft (12b) and the damping adjustment axis (11) are connected through a "-" shaped card slot.

5. The motorcycle shock absorber preload and damping adjustment component according to claim 3, characterized in that: Sealing rings are respectively arranged between the preload adjusting knob body (7a) and the end cover (2), between the preload adjusting shaft center (7b) and the preload adjusting shaft center fixing seat (2b), between the preload adjusting shaft center fixing seat (2b) and the end cover (2), between the rotating shaft (12b) and the preload adjusting shaft center (7b), and between the damping adjusting shaft center (11) and the preload adjusting shaft center (7b).

6. The preload and damping adjustment assembly for a motorcycle shock absorber according to claim 3, wherein: A transverse hole is formed in the damping adjusting shaft center (11), and a cylindrical helical spring (14) with steel balls (13) at both ends is installed in the transverse hole. A plurality of vertical arc-shaped grooves (7c) are evenly spaced on the inner wall of the preload adjusting shaft center (7b). When the damping adjusting shaft center (11) rotates until the steel balls (13) fall into a certain vertical arc-shaped groove (7c), the sense of position can be increased and the damping adjustment amount can be judged.

7. The motorcycle shock absorber preload and damping adjustment assembly according to claim 1, characterized in that: The lower end of the preload adjusting knob (7) is an external hexagonal rod part, and the square hole of the preload adjusting ejector rod (6) is an internal hexagon.

8. The motorcycle shock absorber preload and damping adjustment assembly according to claim 1, characterized in that: The end cover (2) is provided with an air vent hole communicating with the inner cavity of the shock absorber, and an air vent screw (8) is installed.

9. The motorcycle shock absorber preload and damping adjustment assembly according to claim 1, characterized in that: Both ends of the transverse pin (5) rest on the inner step of the spring support seat (4), and the shock absorption spring (3) is sleeved on the outer step of the spring support seat (4).

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