Damping rear fork and scooter

Abstract

The utility model discloses a damping rear fork and a scooter. The rear fork assembly comprises a rear fork assembly and a shock absorption assembly, the shock absorption assembly comprises a shock absorption seat, a first special-shaped hole penetrating through the shock absorption seat in the left-right direction is formed in the shock absorption seat, a rotating shaft is rotationally connected to the shock absorption seat, and the rotating shaft is located above the first special-shaped hole and arranged in the left-right direction; a push rod capable of moving in the first special-shaped hole and an elastic damping structure located on the rear side of the push rod are arranged in the first special-shaped hole, the push rod is parallel to the rotating shaft, and the rotating shaft and the push rod are connected with the rear fork assembly. The damping assembly is simple in structure, low in cost and good in damping effect, the elastic damping structure is convenient to replace, and the maintenance cost is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of shock absorption of riding tools, in particular to a shock absorption rear fork and a scooter. Background Art

[0002] With the development of science and technology, people's means of transportation are becoming more and more diverse. Scooters are deeply loved by consumers because of their advantages such as fast folding speed, small size, easy to carry, and the ability to travel on crowded roads.

[0003] Scooters are prone to bumps when traversing uneven roads, affecting both safety and comfort. Consequently, more and more scooters are incorporating shock-absorbing structures. However, the shock-absorbing structures on the rear forks of current scooters utilize springs for vibration reduction, which are often complex, costly, and non-detachable. These structures can severely degrade after prolonged use on poor road conditions, making them difficult to replace and significantly impacting the user experience. Summary of the Invention

[0004] In order to solve the above technical problems, the utility model provides a shock-absorbing rear fork and a scooter, the shock-absorbing assembly of which has a simple structure, low cost, good shock-absorbing effect, and easy replacement of the elastic shock-absorbing structure, which greatly reduces maintenance costs.

[0005] In order to solve the above problems, the present invention adopts the following technical solutions:

[0006] The utility model provides a shock-absorbing rear fork, comprising a rear fork assembly and a shock-absorbing assembly, the shock-absorbing assembly comprising a shock-absorbing seat, the shock-absorbing seat being provided with a first special-shaped hole penetrating the shock-absorbing seat in the left-right direction, the shock-absorbing seat being rotatably connected with a rotating shaft, the rotating shaft being located above the first special-shaped hole and being arranged in the left-right direction, the first special-shaped hole being provided with a push rod movable in the first special-shaped hole and an elastic shock-absorbing structure located on the rear side of the push rod, the push rod and the rotating shaft being parallel to each other, the rotating shaft and the push rod being respectively connected to the rear fork assembly.

[0007] In this solution, the shock absorber assembly is mounted on the rear end of the scooter frame, and the rear wheel is mounted on the rear fork assembly. When the scooter traverses uneven terrain, the impact force on the rear wheel causes the rear fork assembly to rotate backward, which in turn drives the push rod to rotate backward around the rotating axis. The push rod rotates backward within the first special-shaped hole, squeezing the elastic shock absorber structure to generate elastic potential energy, thereby achieving a shock-absorbing effect, resulting in effective shock absorption.

[0008] Preferably, the elastic shock-absorbing structure includes a plurality of shock-absorbing rods.

[0009] Preferably, the distance between the central axis of the shock absorbing rod and the central axis of the rotating shaft is equal to the distance between the central axis of the push rod and the central axis of the rotating shaft.

[0010] When the push rod is rotated by the rear fork assembly, the rotation path of the push rod will pass through the central axis of the damping rod, that is, the extrusion force applied by the push rod to the damping rod is along the radial direction of the damping rod, which fully utilizes the elasticity of the damping rod and has good damping effect.

[0011] As preferred, the elastic damping structure comprises two damping rods, the first special-shaped hole is surrounded by an upper arc-shaped surface arched downward, a left arc-shaped surface arched leftward, a lower arc-shaped surface arched downward, and a right arc-shaped surface arched rightward, the longitudinal section of the right arc-shaped surface is semicircular, the diameter of the semicircle is equal to the diameter of the damping rod, the longitudinal section of the left arc-shaped surface is fan-shaped, the radius of the fan is equal to the radius of the push rod, the left side of the push rod is in contact with the left arc-shaped surface, the right side of the push rod is in contact with the left side of the front damping rod, the right side of the front damping rod is in contact with the left side of the rear damping rod, and the right side of the rear damping rod is in contact with the right arc-shaped surface.

[0012] The first special-shaped hole tightly wraps and positions the two damping rods, ensures the damping effect, and facilitates replacement of the damping rods.

[0013] As preferred, the damping rod is in interference fit with the first special-shaped hole.

[0014] As preferred, the damping rod comprises a cylinder made of elastic material, and a through hole penetrating the cylinder along the axis is arranged on the cylinder.

[0015] As preferred, the rear fork assembly comprises a connecting seat and two rear fork arms, the two rear fork arms are symmetrically arranged left and right, the left and right ends of the connecting seat are respectively connected with the front top ends of the two rear fork arms, the two ends of the rotation shaft are respectively detachably connected with the rear fork arm on the corresponding side, and the two ends of the push rod are respectively detachably connected with the rear fork arm on the corresponding side.

[0016] The rear fork arms are detachably connected with the rotation shaft and the push rod, after the rear fork assembly is detached from the damping assembly, the rotation shaft, the push rod, and the damping rod on the damping assembly are convenient to replace, which is conducive to replacement and maintenance of the components of the damping assembly after long-time use.

[0017] As preferred, a rotation shaft hole through which the rotation shaft passes is arranged on the damping seat, a first through hole corresponding to the rotation shaft is arranged on the rear fork arm, a second through hole corresponding to the push rod is arranged on the rear fork arm, first threaded holes are symmetrically arranged on the left and right ends of the rotation shaft, the first threaded holes are coaxial with the rotation shaft, second threaded holes are symmetrically arranged on the left and right ends of the push rod, the second threaded holes are coaxial with the push rod, a first screw is arranged on the first through hole, the first screw is threadedly connected with the corresponding first threaded hole after passing through the first through hole to lock the rear fork arm and the rotation shaft, and a second screw is arranged on the second through hole, the second screw is threadedly connected with the corresponding second threaded hole after passing through the second through hole to lock the rear fork arm and the push rod.

[0018] As preferred, the damping seat is further provided with a second special-shaped hole penetrating the damping seat in the left-right direction, the second special-shaped hole is located above the first special-shaped hole, the rear fork arm is provided with a first wire passing hole, and the inner wall of the second special-shaped hole is provided with a plurality of second wire passing holes penetrating the damping seat.

[0019] The rear brake wire of the scooter can be connected with the brake mechanism on the rear wheel after sequentially passing through the second wire passing hole, the second special-shaped hole and the first wire passing hole from the rear end of the frame of the scooter.

[0020] As preferred, the damping rod is made of polyurethane material, and has the characteristics of high elasticity, wear resistance and fatigue resistance.

[0021] The utility model discloses a scooter, which comprises the damping rear fork mentioned above.

[0022] The utility model discloses the beneficial effect is: (1) damping assembly simple structure, the cost is lower, and the damping effect is good. (2) the rear fork arm is detachable with the pivot, push rod respectively, and the pivot, push rod, damping rod on the damping assembly are convenient to replace after the rear fork assembly is detached from the damping assembly, and it is favorable to the component replacement maintenance of damping assembly after long -time use. (3) adopt the damping rod made of polyurethane material as the damping part, and the damping effect is good, and the cost is low, and convenient to replace. DRAWINGS

[0023] Figure 1 It is the structure schematic view of the damping rear fork installed on the scooter;

[0024] Figure 2 It is Figure 1 the explosion map;

[0025] Figure 3 It is Figure 1 the sectional view of the damping assembly in

[0026] Figure 4 It is Figure 2 the side view of the damping seat in

[0027] Figure 5 It is the structure schematic view of the damping assembly;

[0028] Figure 6 It is the schematic view when the rear wheel of the scooter meets the convex object on the road;

[0029] Figure 7 It is the schematic view of the rear brake wire through the damping rear fork.

[0030] In the figure: 1. Rear fork assembly, 2. Shock absorber assembly, 3. Shock absorber seat, 4. First special-shaped hole, 5. Rotating shaft, 6. Push rod, 7. Shock absorber rod, 8. Upper arc surface, 9. Left arc surface, 10. Lower arc surface, 11. Right arc surface, 12. Cylinder, 13. Through hole, 14. Connecting seat, 15. Rear fork arm, 16. Rotating shaft hole, 17. First through hole, 18. Second through hole, 19. First threaded hole, 20. Second threaded hole, 21. First screw, 22. Second screw, 23. Second special-shaped hole, 24. First wire hole, 25. Second wire hole, 26. Frame, 27. Rear wheel, 28. Protrusion, 29. Rear brake cable. DETAILED DESCRIPTION

[0031] The technical solution of the present invention will be further specifically described below with reference to embodiments and in conjunction with the accompanying drawings.

[0032] Embodiment: A shock-absorbing rear fork of this embodiment, such as Figures 1 to 7 As shown, it includes a rear fork assembly 1 and a shock absorber assembly 2. The shock absorber assembly 2 includes a shock absorber seat 3. The shock absorber seat 3 is provided with a first special-shaped hole 4 that penetrates the shock absorber seat 3 along the left-right direction. The shock absorber seat 3 is rotatably connected with a rotating shaft 5. The rotating shaft 5 is located above the first special-shaped hole 4 and is arranged along the left-right direction. The first special-shaped hole 4 is provided with a push rod 6 that can move in the first special-shaped hole 4 and an elastic shock-absorbing structure located on the rear side of the push rod 6. The push rod 6 and the rotating shaft 5 are parallel to each other. The rotating shaft 5 and the push rod 6 are respectively detachably connected to the rear fork assembly 1.

[0033] The elastic shock-absorbing structure includes two shock-absorbing rods 7 . The distance between the central axis of the shock-absorbing rod 7 and the central axis of the rotating shaft 5 is equal to the distance between the central axis of the push rod 6 and the central axis of the rotating shaft 5 .

[0034] The first special-shaped hole 4 is surrounded by a downwardly arched upper arc surface 8, a leftwardly arched left arc surface 9, a downwardly arched lower arc surface 10, and a rightwardly arched right arc surface 11. The longitudinal cross-section of the right arc surface 11 is semicircular, the diameter of the semicircle equal to the diameter of the shock-absorbing rod 7. The longitudinal cross-section of the left arc surface 11 is fan-shaped, the radius of the fan-shaped radius equal to the radius of the push rod 6. The left side of the push rod 6 contacts the left arc surface 9, the right side of the push rod 6 contacts the left side of the front shock-absorbing rod 7, the right side of the front shock-absorbing rod 7 contacts the left side of the rear shock-absorbing rod 7, and the right side of the rear shock-absorbing rod 7 contacts the right arc surface 11. The shock-absorbing rod 7 has an interference fit with the first special-shaped hole 4. The first special-shaped hole tightly wraps and positions the two shock-absorbing rods, ensuring the shock-absorbing effect and facilitating the replacement of the shock-absorbing rods.

[0035] The shock-absorbing rod 7 comprises a cylindrical body 12 made of polyurethane material, and a through hole 13 is provided on the cylindrical body 12 along the axis thereof, so that the shock-absorbing rod has the characteristics of high elasticity, wear resistance and fatigue resistance.

[0036] The damping seat 3 is provided with a rotating shaft hole 16 through which the rotating shaft 5 passes, the rotating shaft 5 passes through the rotating shaft hole 16, and the two ends of the rotating shaft 5 extend out of the rotating shaft hole 16, the rear fork assembly 1 includes a connecting seat 14 and two rear fork arms 15, the two rear fork arms 15 are symmetrically arranged, the left and right ends of the connecting seat 14 are respectively connected to the front top ends of the two rear fork arms 15, the first through hole 17 is arranged on the rear fork arm 15 at a position corresponding to the rotating shaft 5, the second through hole 18 is arranged on the rear fork arm 15 at a position corresponding to the push rod 6, the first threaded hole 19 is symmetrically arranged on the left and right ends of the rotating shaft 5, the first threaded hole 19 is coaxial with the rotating shaft 5, the second threaded hole 20 is symmetrically arranged on the left and right ends of the push rod 6, the second threaded hole 20 is coaxial with the push rod 6, the first screw 21 is arranged on the first through hole 17, the first screw 21 is screwed into the corresponding first threaded hole 19 after passing through the first through hole 17 to lock the rear fork arm 15 and the rotating shaft 5, and the second screw 22 is arranged on the second through hole 18, the second screw 22 is screwed into the corresponding second threaded hole 20 after passing through the second through hole 18 to lock the rear fork arm 15 and the push rod 6.

[0037] In the scheme, as shown in the figure, Figure 1 The damping assembly is detachably connected to the frame. As shown in the figure, Figure 6 When the rear wheel of the scooter encounters a protrusion 28 on the road surface, the impact force received by the rear wheel drives the rear fork assembly to rotate backward, the rear fork assembly drives the push rod to rotate backward around the rotating shaft, the push rod rotates backward in the first special-shaped hole to extrude the damping rod to generate elastic potential energy, thereby playing a damping effect, and the damping effect is good.

[0038] Since the distance between the central axis of the damping rod and the central axis of the rotating shaft is equal to the distance between the central axis of the push rod and the central axis of the rotating shaft, when the rear fork assembly drives the push rod to rotate backward around the rotating shaft, the rotation path of the push rod passes through the central axis of the damping rod, that is, the extrusion force applied by the push rod to the damping rod is along the radial direction of the damping rod, the elasticity of the damping rod is fully utilized, and the damping effect is improved.

[0039] The two ends of the rotating shaft are respectively detachably connected to the rear fork arms on the corresponding side, and the two ends of the push rod are respectively detachably connected to the rear fork arms on the corresponding side. After the rear fork assembly is detached from the damping assembly, the rotating shaft, the push rod and the damping rod on the damping assembly are convenient to replace, and the replacement and maintenance of the components of the damping assembly after long-time use are facilitated.

[0040] The damping assembly of the scheme has a simple structure, the damping rod made of polyurethane material has low cost, the damping rod and the rear fork assembly are convenient to disassemble and assemble, and when the damping effect is poor due to serious attenuation of the damping rod after long-time use, the rear fork assembly can be detached from the damping assembly to replace the damping rod, so that the cost is low and the cost performance is high.

[0041] The damping seat 3 is further provided with a second special-shaped hole 23 penetrating the damping seat 3 in the left-right direction, the second special-shaped hole 23 is located above the first special-shaped hole 4, the rear fork arm 15 is provided with a first wire passing hole 24, and the inner wall of the second special-shaped hole 23 is provided with a plurality of second wire passing holes 25 penetrating the damping seat 3.

[0042] As shown in Figure 7 The rear brake wire 29 of the scooter can be sequentially connected with the brake mechanism on the rear wheel 27 through the second wire passing hole 25, the second special-shaped hole 23 and the first wire passing hole 24 from the rear end of the frame 26 of the scooter.

[0043] The scooter of the embodiment comprises a frame, a front fork assembly, a front wheel, a rear wheel and the damping rear fork described above. The front wheel is connected with the front end of the frame through the front fork assembly, and the rear wheel is connected with the rear end of the frame through the damping rear fork. The damping assembly is arranged at the rear end of the frame and detachably connected with the frame, and the rear wheel is arranged between the two rear fork arms.

Claims

1. A shock-absorbing rear fork, comprising a rear fork assembly (1) and a shock-absorbing assembly (2), characterized in that: The shock absorbing assembly (2) includes a shock absorbing seat (3), a first special-shaped hole (4) penetrating the shock absorbing seat (3) in the left-right direction is provided on the shock absorbing seat (3), a rotating shaft (5) is rotatably connected to the shock absorbing seat (3), the rotating shaft (5) is located above the first special-shaped hole (4) and is arranged in the left-right direction, a push rod (6) movable in the first special-shaped hole (4) and an elastic shock absorbing structure located at the rear side of the push rod (6) are provided in the first special-shaped hole (4), the push rod (6) and the rotating shaft (5) are parallel to each other, and the rotating shaft (5) and the push rod (6) are respectively connected to the rear fork assembly (1).

2. A shock-absorbing rear fork according to claim 1, characterized in that: The elastic shock-absorbing structure comprises a plurality of shock-absorbing rods (7).

3. The shock-absorbing rear fork according to claim 2, characterized in that: The distance between the central axis of the shock-absorbing rod (7) and the central axis of the rotating shaft (5) is equal to the distance between the central axis of the push rod (6) and the central axis of the rotating shaft (5).

4. The shock-absorbing rear fork according to claim 2, characterized in that: The elastic shock-absorbing structure includes two shock-absorbing rods (7). The first special-shaped hole (4) is surrounded by an upper arc surface (8) arched downward, a left arc surface (9) arched leftward, a lower arc surface (10) arched downward, and a right arc surface (11) arched rightward. The longitudinal section of the right arc surface (11) is semicircular, and the diameter of the semicircle is equal to the diameter of the shock-absorbing rod. The longitudinal section of the left arc surface (9) is fan-shaped, and the radius of the fan is equal to the radius of the push rod. The left side of the push rod (6) contacts with the left arc surface (9), the right side of the push rod (6) contacts with the left side of the front shock-absorbing rod (7), the right side of the front shock-absorbing rod (7) contacts with the left side of the rear shock-absorbing rod (7), and the right side of the rear shock-absorbing rod (7) contacts with the right arc surface (11).

5. The shock-absorbing rear fork according to claim 2, characterized in that: The shock-absorbing rod (7) is interference-fitted with the first special-shaped hole (4).

6. The shock-absorbing rear fork according to claim 2, characterized in that: The shock-absorbing rod (7) comprises a cylinder (12) made of elastic material, and the cylinder (12) is provided with a through hole (13) penetrating the cylinder (12) along an axis.

7. The shock-absorbing rear fork according to claim 1, characterized in that: The rear fork assembly (1) comprises a connecting seat (14) and two rear fork arms (15), wherein the two rear fork arms (15) are symmetrically arranged on the left and right sides, and the left and right ends of the connecting seat (14) are respectively connected to the front top ends of the two rear fork arms (15), and the two ends of the rotating shaft (5) are respectively detachably connected to the rear fork arms (15) on the corresponding side, and the two ends of the push rod (6) are respectively detachably connected to the rear fork arms (15) on the corresponding side.

8. The shock-absorbing rear fork according to claim 7, characterized in that: The shock absorber seat (3) is provided with a shaft hole (16) for the shaft (5) to pass through, the shaft (5) passes through the shaft hole (16), the rear fork arm (15) is provided with a first through hole (17) at a position corresponding to the shaft (5), the rear fork arm (15) is provided with a second through hole (18) at a position corresponding to the push rod (6), the shaft (5) is symmetrically provided with first threaded holes (19) at both ends, the first threaded holes (19) are coaxial with the shaft (5), the push rod (6) is symmetrically provided with second threaded holes (20) at both ends. ), the second threaded hole (20) is coaxial with the push rod (6), the first through hole (17) is provided with a first screw (21), the first screw (21) passes through the first through hole (17) and is threadedly connected to the corresponding first threaded hole (19) to lock the rear fork arm (15) and the rotating shaft (5), the second through hole (18) is provided with a second screw (22), the second screw (22) passes through the second through hole (18) and is threadedly connected to the corresponding second threaded hole (20) to lock the rear fork arm (15) and the push rod (6).

9. The shock-absorbing rear fork according to claim 7, characterized in that: The shock absorber seat (3) is further provided with a second special-shaped hole (23) that passes through the shock absorber seat (3) in the left-right direction, and the second special-shaped hole (23) is located above the first special-shaped hole (4). The rear fork arm (15) is provided with a first wire-passing hole (24), and a plurality of second wire-passing holes (25) that pass through the shock absorber seat (3) are provided on the front side of the inner wall of the second special-shaped hole (23).

10. A scooter, characterized in that: The invention comprises the shock-absorbing rear fork according to any one of claims 1 to 9.

Images