Adjustable damping shock-absorbing skateboard front axle structure and adjusting device thereof
By introducing an adjustment mechanism into the front axle structure of the skateboard, and utilizing a positioning plate, torsion plate, and spring assembly, the torsional damping can be adjusted, solving the problem that existing skateboard front axles cannot be adjusted, and improving the flexibility and adaptability of use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO UNIV
- Filing Date
- 2025-07-12
- Publication Date
- 2026-07-14
AI Technical Summary
The existing skateboard front truck cannot adjust torsional damping, which requires replacing PU pads, torsion springs, and tension springs of different specifications, making it extremely inconvenient to use and unsuitable for different types of people and venues.
An adjustable damping shock-absorbing sliding plate front axle structure was designed. Through the adjustment mechanism between the fixed seat and the axle base, the torsional damping is adjusted by using components such as the positioning plate, torsion plate, secondary spring and main spring. The cooperation of structures such as the positioning platform, thrust hole and damping groove provides damping and return power.
It enables damping adjustment according to different users and site environments, improving ease of use and adaptability, making it suitable for various scenarios and easier to operate.
Smart Images

Figure CN224484870U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of skateboard technology, specifically to an adjustable damping shock-absorbing skateboard front axle structure and its adjustment device. Background Technology
[0002] A skateboard is a foot-operated sliding device that allows athletes to perform various complex gliding, jumping, spinning, and flipping maneuvers on different terrains, surfaces, and specific facilities by using the front and rear ramps to bend and tilt.
[0003] The rear axle of a skateboard is mostly made of PU and is used primarily for tilting maneuvers. The front axle includes various types such as PU axle, torsion spring axle, and tension spring axle. As the names suggest, PU axle, torsion spring axle, and tension spring axle provide elasticity and rebound during turning through PU pads, torsion springs, and tension springs, respectively.
[0004] Existing front axles cannot adjust torsional damping. Different specifications of PU pads, torsion springs, and tension springs need to be replaced for different types of people and venues, which is extremely inconvenient and limits their use. Therefore, we propose an adjustable damping shock-absorbing skateboard front axle structure and its adjustment device. Utility Model Content
[0005] The purpose of this utility model is to provide an adjustable damping shock-absorbing sliding plate front axle structure and its adjustment device in order to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model specifically adopts the following technical solution:
[0007] An adjustable damping front axle structure includes a fixed base and an axle base disposed below the fixed base. A torsion cavity is formed on the bottom surface of one end of the fixed base, and a fixed shaft is disposed within the torsion cavity. One end of the fixed shaft extending out of the torsion cavity is rotatably connected to the axle base. The structure also includes an adjustment mechanism disposed within the torsion cavity, which provides torsional damping to the fixed base and the axle base. The adjustment mechanism includes a positioning plate and a torsion plate that cooperate with the fixed shaft, and two symmetrically inserted screws into the torsion cavity. The positioning plate and the torsion plate are respectively connected to the fixed base and the axle base. Two auxiliary springs symmetrically distributed on both sides of the fixed shaft are provided between the positioning plate and the torsion plate. The two ends of the auxiliary springs are respectively connected to a slider and a thrust block. The end face of the positioning plate is provided with a track groove corresponding to the auxiliary spring. The top ends of the slider and the thrust block are slidably connected to the track groove. The end face of the torsion plate is provided with a thrust hole corresponding to the slider and in a fan shape. The bottom end of the slider slides along the inner wall of the thrust hole under the thrust of the auxiliary spring. One end of the screw is rotatably connected to the outer wall of the fixed seat, and the other end of the screw is threadedly engaged with the thrust block.
[0008] Furthermore, positioning platforms are distributed in a ring on the opposite side end faces of the positioning plate and the torsion plate, and positioning holes are provided on the inner top surface of the torsion cavity and the side end face of the bridge base near the torsion cavity, with the positioning platforms cooperating with the positioning holes.
[0009] Furthermore, a fastener is recessed into the track groove, and the threaded section of the fastener is screwed into the top of the slider and the thrust block. The end of the fastener connected to the slider extends outward and conforms to the thrust hole wall.
[0010] Furthermore, the adjustment mechanism also includes a main spring, the end face of the torsion plate is provided with a through damping groove, the end face of the positioning plate near the torsion plate is provided with a thrust platform corresponding to both ends of the damping groove, the lower half of the main spring is accommodated in the damping groove, and the two ends of the upper half of the main spring respectively abut against the thrust platform.
[0011] Furthermore, the positioning plate and the torsion plate each have a shaft platform on their adjacent end faces, and a thrust bearing sleeved on a fixed shaft is provided between the two shaft platforms.
[0012] Furthermore, a suspension frame is connected to the end of the bridge base away from the fixed axis, and a wheel axle is provided at the bottom of the suspension frame.
[0013] Furthermore, a pad platform and a support shaft are respectively provided on both sides of the suspension frame. A bridge nail is recessed and installed at the end of the bridge base away from the fixed shaft. The extended end of the bridge nail is connected to the pad platform. A support groove is opened on the bottom surface of the bridge base, and the top end of the support shaft abuts against the support groove.
[0014] Furthermore, the top and bottom surfaces of the gasket platform are respectively provided with a main gasket and a secondary gasket fitted on the bridge nail. The top end of the main gasket abuts against the bridge base, and the top end of the secondary gasket forms a conical platform that penetrates the gasket platform and is embedded in the bottom surface of the main gasket. The bottom end of the bridge nail is fitted with a locking nut that abuts against the secondary gasket.
[0015] Furthermore, a protective sleeve is fitted into the support groove, and the top end of the support shaft extends into the protective sleeve.
[0016] An adjustment device for an adjustable damping and shock-absorbing sliding plate front axle structure includes the aforementioned adjustment mechanism.
[0017] The beneficial effects of this utility model are as follows:
[0018] 1. This utility model rotatably connects the bridge base and the fixed seat via a fixed shaft, and incorporates an adjustment mechanism within the torsion cavity. The fixed seat and the bridge base are connected by a positioning plate and a torsion plate, respectively. A slider and a thrust block are slidably connected to the same track via a track groove. A secondary spring connects the slider and the thrust block, and the slider is limited by a thrust hole. When the slide plate turns, the bridge base deflects around the fixed shaft under the user's downward pressure. The thrust hole pushes the slider to compress the secondary spring on one side, thereby providing damping and return force for the deflection of the bridge base. By rotating the screw, the thrust block is driven to slide along the track groove toward the slider. By changing the length of the secondary spring, the damping of the secondary spring on the deflection of the bridge base is adjusted. This makes it more convenient to use, suitable for different users and different site environments, and easier to operate.
[0019] 2. This utility model positions the upper half of the main spring through a damping groove and clamps and positions the lower half of the main spring through a thrust table. When the torsion plate deflects with the axle base, the inner wall of one end of the damping groove applies torque to the main spring. Through the cooperation of the inner wall and the thrust table, the main spring is compressed, further providing steering damping and return power to the front axle. Attached Figure Description
[0020] Figure 1 This is a three-dimensional schematic diagram of the present invention;
[0021] Figure 2 This is an exploded view of the present invention;
[0022] Figure 3 This is a front sectional view of the present invention;
[0023] Figure 4 This is a three-dimensional schematic diagram of the adjustment mechanism in this utility model;
[0024] Figure 5 This is a three-dimensional schematic diagram of the adjustment mechanism in this utility model from another perspective;
[0025] Figure 6 This is an exploded schematic diagram of the adjustment mechanism in this utility model.
[0026] Reference numerals: 1. Fixed seat; 2. Torsion cavity; 3. Fixed shaft; 4. Bridge base; 5. Adjustment mechanism;
[0027] 51. Positioning plate; 52. Torsion plate; 53. Positioning platform; 54. Shaft platform; 55. Thrust bearing; 56. Damping groove; 57. Thrust platform; 58. Main spring; 59. Slider; 510. Track groove; 511. Fastener; 512. Thrust hole; 513. Screw; 514. Thrust block; 515. Secondary spring; 6. Positioning hole; 7. Suspension bracket; 8. Wheel axle; 9. Shim platform; 10. Bridge pin; 11. Main washer; 12. Secondary washer; 13. Washer; 14. Locking nut; 15. Support shaft; 16. Sheath; 17. Support groove; 18. Adjustment platform. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.
[0029] Please see Figure 1 - Figure 6 This utility model provides an adjustable damping shock-absorbing skateboard front axle structure, including a fixed seat 1 and an axle base 4 disposed below the fixed seat 1. A torsion cavity 2 is formed on the bottom surface of one end of the fixed seat 1, and a fixed shaft 3 is disposed in the torsion cavity 2. Specifically, the fixed shaft 3 is a stepped shaft and is integrally formed with the fixed seat 1. The bottom end of the fixed shaft 3 extends out of the torsion cavity 2, and the end of the fixed shaft 3 extending out of the torsion cavity 2 is rotatably connected to the axle base 4. Specifically, a groove is formed on the end of the axle base 4 near the torsion cavity 2, and a through hole is formed in the middle of the groove to cooperate with the fixed shaft 3. After the bottom end of the fixed shaft 3 passes through the axle base 4, a locking nut 14 is fitted. The feature is that it also includes an adjustment mechanism 5 disposed in the torsion cavity 2, and the adjustment mechanism 5 provides torsional damping for the fixed seat 1 and the axle base 4.
[0030] The adjusting mechanism 5 includes a positioning plate 51 and a torsion plate 52 that cooperate with the fixed shaft 3, and two screws 513 symmetrically inserted into the torsion cavity 2. Specifically, the included angle between the two screws 513 is an acute angle, and they are symmetrically distributed on both sides of the fixed shaft 3. The positioning plate 51 and the torsion plate 52 are respectively connected to the fixed seat 1 and the bridge base 4. Specifically, the positioning plate 51 is fitted with the top of the fixed shaft 3 via a hole-shaft connection, and the torsion plate 52 is fitted with the bottom of the fixed shaft 3 via a hole-shaft connection. Two auxiliary springs 515 are provided between the positioning plate 51 and the torsion plate 52, symmetrically distributed on both sides of the fixed shaft 3. Specifically, the included angle between the central axes of the two auxiliary springs 515 is an acute angle, and the two ends of the auxiliary springs 515 are respectively connected to... The slider 59 and the thrust block 514 are positioned on the end face of the positioning plate 51, which has a track groove 510 corresponding to the secondary spring 515. The tops of the slider 59 and the thrust block 514 are slidably connected to the track groove 510. Specifically, the track groove 510 corresponds to the central axis of the secondary spring 515, ensuring that the slider 59 and the thrust block 514 slide towards each other along the central axis of the secondary spring 515 through the track groove 510. The end face of the torsion plate 52 has a fan-shaped thrust hole 512 corresponding to the slider 59. The bottom end of the slider 59 slides along the inner wall of the thrust hole 512 under the thrust of the secondary spring 515. Specifically, the thrust hole 512 is a stepped fan-shaped through hole, and the bottom end of the slider 59 extends into it. The upper half of the thrust hole 512 is larger and conforms to the inner wall. One end of the screw 513 is rotatably connected to the outer wall of the fixed seat 1. Specifically, the extended end of the screw 513 has an internal hexagonal countersunk groove and is fitted with a shaft hole on the outer wall of the fixed seat 1. The other end of the screw 513 is threadedly fitted to the thrust block 514. Specifically, the screw 513 extends into the auxiliary spring 515. The middle of the thrust block 514 has an internal threaded hole that fits with the screw 513. The bridge base 4 can be rotatably connected to the fixed seat 1 through the fixed shaft 3. An adjustment mechanism 5 is built into the torsion cavity 2. The fixed seat 1 and the bridge base 4 are connected by the positioning plate 51 and the torsion plate 52 respectively. The track groove 510 slides to connect the same track. The slider 59 and the push block 514 are connected by a secondary spring 515. The slider 59 is limited by the push hole 512. When the slide plate turns, the bridge base 4 deflects around the fixed axis 3 under the action of the user's downward pressure. The push hole 512 pushes the slider 59 to compress the secondary spring 515 on one side, thereby providing damping and return force for the deflection of the bridge base 4. By rotating the screw 513, the push block 514 is driven to slide along the track groove 510 toward the slider 59. By changing the length of the secondary spring 515, the damping of the bridge base 4 by the secondary spring 515 is adjusted. It is more convenient to use, suitable for different users and different site environments, and easier to operate.
[0031] In this embodiment, preferably, a fastener 511 is recessed into the track groove 510. Specifically, the fastener 511 is an internal hexagon bolt, with its head recessed into the top of the track groove 510 and its threaded section passing through the track groove 510. The threaded section of the fastener 511 is screwed into the top of the slider 59 and the thrust block 514. The end of the fastener 511 connected to the slider 59 extends outward and conforms to the wall of the thrust hole 512. Specifically, the lengths of the fasteners 511 connecting the slider 59 and the thrust block 514 are different. The end of 511 extends into the lower half of the smaller thrust hole 512 and conforms to the inner wall. The fastener 511 can cooperate with the track groove 510 to slide the slider 59 and the thrust block 514 along the track groove 510 to connect the positioning plate 51. The shaft end of the fastener 511 extends into the thrust hole 512 and conforms to its inner wall, which further improves the stability of the thrust hole 512 pushing the slider 59. At the same time, the thrust hole 512 limits the shaft end of the fastener 511, thereby limiting the sliding of the slider 59.
[0032] In this embodiment, preferably, positioning platforms 53 are annularly distributed on the opposite side end faces of positioning plate 51 and torsion plate 52. Positioning holes 6 are provided on the inner top surface of torsion cavity 2 and the side end face of bridge base 4 near torsion cavity 2. Positioning platforms 53 cooperate with positioning holes 6. Specifically, the positioning platform 53 on the top surface of positioning plate 51 cooperates with the positioning hole 6 on the inner top surface of torsion cavity 2. The positioning hole 6 on the side end face of bridge base 4 near fixed shaft 3 and located on the bottom surface of the sink trough cooperates with the positioning platform 53 on the bottom surface of torsion plate 52. Thus, the positioning plate 51 and torsion plate 52 can be connected to fixed base 1 and bridge base 4 respectively by the cooperation of positioning platform 53 and positioning hole 6.
[0033] In this embodiment, preferably, adjustment platforms 18 are symmetrically arranged on the outer walls of both sides of the fixed base 1. The screw 513 is recessed and installed in the adjustment platform 18. The end of the screw 513 away from the thrust block 514 is rotatably connected in the adjustment platform 18. Specifically, the adjustment platform 18 has a countersunk hole that communicates with the torsion cavity 2. The head of the screw 513 is recessed in the countersunk hole of the adjustment platform 18. The outer wall of the head of the screw 513 has an annular groove. The side wall of the adjustment platform 18 extends into the annular groove of the head of the screw 513 through a cylindrical pin or a hexagonal socket set screw to rotate and position the head of the screw 513.
[0034] In this embodiment, preferably, a shaft platform 54 is formed on the adjacent end face of the positioning plate 51 and the torsion plate 52. A thrust bearing 55 sleeved on the fixed shaft 3 is provided between the two shaft platforms 54. The shaft platform 54 and the thrust bearing 55 cooperate to not only provide rotational support for the torsion plate 52, but also fix the distance between the positioning plate 51 and the torsion plate 52, making the structure more stable.
[0035] In this embodiment, preferably, the adjusting mechanism 5 further includes a main spring 58, and the end face of the torsion plate 52 is provided with a through damping groove 56. The end face of the positioning plate 51 near the torsion plate 52 is provided with a thrust platform 57 corresponding to both ends of the damping groove 56. Specifically, the bottom end of the thrust platform 57 does not contact the end face of the torsion plate 52, and the distance between the two thrust platforms 57 is the same as the length of the damping groove 56. The lower half of the main spring 58 is housed in the damping groove 56, and the two ends of the upper half of the main spring 58 respectively abut against the thrust platform 57. The inner walls at both ends of the damping groove 56 and the end face of the thrust table 57 are provided with bosses to position the end of the main spring 58 and prevent the main spring 58 from disengaging from the damping groove 56. The upper half of the main spring 58 can be positioned by the damping groove 56, and the lower half of the main spring 58 can be clamped and positioned by the thrust table 57. When the torsion plate 52 deflects with the axle base 4, the inner wall of one end of the damping groove 56 applies torque to the main spring 58. Through the cooperation of the inner wall and the thrust table 57, the main spring 58 is compressed, thereby further providing steering damping and return power to the front axle.
[0036] In this embodiment, preferably, the end of the bridge base 4 away from the fixed shaft 3 is connected to a suspension frame 7, and the bottom of the suspension frame 7 is provided with a wheel axle 8. Specifically, the bottom of the suspension frame 7 is formed with a through hole through which the wheel axle 8 passes, and bolts are screwed into both ends of the suspension frame 7 to fix the wheel axle 8. The two ends of the wheel axle 8 are used to install rollers.
[0037] In this embodiment, preferably, the suspension bracket 7 has a pad platform 9 and a support shaft 15 on both sides. Specifically, the pad platform 9 is located above the side of the wheel axle 8 away from the fixed shaft 3. The top and bottom surfaces of the pad platform 9 are provided with grooves and a through hole is formed in the middle. A bridge nail 10 is installed at the end of the bridge base 4 away from the fixed shaft 3. Specifically, the bridge base 4 has a through hole at an angle, and the bridge nail 10 is inserted into the hole. The protruding end of the bridge nail 10 is connected to the pad platform 9. A support groove 1 is provided on the bottom surface of the bridge base 4. 7. The top end of the support shaft 15 abuts against the support groove 17. Specifically, the top end of the support shaft 15 is spherical, and the inner wall dimension of the support groove 17 is larger than the outer wall dimension of the top end of the support shaft 15. The suspension frame 7 can be connected by the bridge nail 10 to install and position the suspension frame 7. The support shaft 15 and the support groove 17 cooperate to provide point support for the suspension frame 7. This not only further improves the stability and load-bearing strength of the suspension frame 7, but also facilitates the corresponding angle deflection of the suspension frame 7 according to the user's gliding skills.
[0038] In this embodiment, preferably, the top and bottom surfaces of the pad platform 9 are respectively provided with a main washer 11 and a secondary washer 12 sleeved on the bridge nail 10. The top end of the main washer 11 abuts against the bridge base 4, and the top end of the secondary washer 12 forms a conical platform that penetrates the pad platform 9 and is embedded in the bottom surface of the main washer 11. Specifically, the outer diameter of the bridge nail 10 is smaller than the inner diameter of the through hole in the middle of the pad platform 9. The conical platform formed at the top end of the secondary washer 12 penetrates the pad platform 9 and extends into the groove on the bottom surface of the main washer 11. The bottom end of the bridge nail 10 is fitted with a contact pad. Specifically, a washer 13 is provided between the secondary washer 12 and the locking nut 14 of the plate 12 to prevent relative rotation between the locking nut 14 and the secondary washer 12. The main washer 11 and the secondary washer 12, together with the bridge pin 10 and the washer platform 9, can cause the suspension frame 7 and the wheel axle 8 to deflect around the top of the support shaft 15 and the center of the inner hole of the washer platform 9 when the user needs to turn, change body posture or perform gliding skills. This not only promotes steering but also improves the shock absorption effect.
[0039] In this embodiment, preferably, a sleeve 16 is fitted into the support groove 17, and the top end of the support shaft 15 extends into the sleeve 16. The sleeve 16 forms a transition between the support groove 17 and the support shaft 15, which avoids wear on the top end of the support shaft 15 and avoids rigid impact caused by hard contact between the support shaft 15 and the support groove 17, thereby further reducing vibration and improving the seismic resistance.
[0040] This utility model also provides an adjustment device for an adjustable damping shock-absorbing skateboard front axle structure. The adjustment device includes the aforementioned adjustment mechanism 5, which adjusts the damping of the skateboard front axle.
[0041] Working principle and usage process of this utility model:
[0042] When in use, the device is installed at the front end of the skateboard via the fixing seat 1, and rollers are set at both ends of the axle 8 to cooperate with the rear axle of the skateboard;
[0043] For different user groups, venues, and facilities, the screws 513 on both sides of the fixed base 1 are turned by using an Allen wrench. The screws 513 drive the thrust block 514 to slide along the track groove 510 toward the slider 59. By changing the length of the secondary spring 515, the damping of the secondary spring 515 on the deflection of the bridge base 4 is adjusted, thereby adjusting the steering torque for left and right turns.
[0044] When the skateboard is bent, under the pressure of the user, the bridge base 4 deflects around the fixed axis 3. The thrust hole 512 pushes the slider 59 to compress the auxiliary spring 515 on one side. At the same time, the torsion plate 52 compresses the main spring 58 through the damping groove 56. Thus, the main spring 58 and one of the auxiliary springs 515 provide damping and return power for the deflection of the bridge base 4.
[0045] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. An adjustable damping shock-absorbing sliding plate front axle structure, comprising a fixed base (1) and an axle base (4) disposed below the fixed base (1), wherein a torsion cavity (2) is formed on the bottom surface of one end of the fixed base (1), a fixed shaft (3) is disposed inside the torsion cavity (2), and one end of the fixed shaft (3) extending out of the torsion cavity (2) is rotatably connected to the axle base (4), characterized in that: It also includes an adjustment mechanism (5) disposed in the torsion cavity (2), the adjustment mechanism (5) providing torsional damping for the fixed seat (1) and the bridge base (4); the adjustment mechanism (5) includes a positioning plate (51) and a torsion plate (52) cooperating with the fixed shaft (3) and two screws (513) symmetrically inserted into the torsion cavity (2), the positioning plate (51) and the torsion plate (52) are respectively connected to the fixed seat (1) and the bridge base (4), and two auxiliary springs (515) symmetrically distributed on both sides of the fixed shaft (3) are provided between the positioning plate (51) and the torsion plate (52), and the two ends of the auxiliary springs (515) are respectively connected to sliders (515). 9) and thrust block (514), the end face of the positioning plate (51) is provided with a track groove (510) corresponding to the auxiliary spring (515), the top of the slider (59) and the thrust block (514) are slidably connected to the track groove (510), the end face of the torsion plate (52) is provided with a thrust hole (512) corresponding to the slider (59) and in the shape of a fan, the bottom end of the slider (59) slides along the inner wall of the thrust hole (512) under the thrust of the auxiliary spring (515), one end of the screw (513) is rotatably connected to the outer wall of the fixed seat (1), and the other end of the screw (513) is threadedly engaged with the thrust block (514).
2. The adjustable damping shock-absorbing sliding plate front axle structure according to claim 1, characterized in that: The positioning plate (51) and the torsion plate (52) are both provided with positioning platforms (53) in a ring on the opposite side end face. The inner top surface of the torsion cavity (2) and the side end face of the bridge base (4) near the torsion cavity (2) are provided with positioning holes (6). The positioning platforms (53) cooperate with the positioning holes (6).
3. The adjustable damping shock-absorbing sliding plate front axle structure according to claim 1, characterized in that: A fastener (511) is recessed into the track groove (510). The threaded section of the fastener (511) is screwed into the top of the slider (59) and the thrust block (514). The end of the fastener (511) connected to the slider (59) extends outward and conforms to the wall of the thrust hole (512).
4. The adjustable damping shock-absorbing sliding plate front axle structure according to claim 1, characterized in that: The adjustment mechanism (5) also includes a main spring (58), and the end face of the torsion plate (52) is provided with a through damping groove (56). The end face of the positioning plate (51) near the torsion plate (52) is provided with a thrust platform (57) corresponding to both ends of the damping groove (56). The lower half of the main spring (58) is housed in the damping groove (56), and the two ends of the upper half of the main spring (58) respectively abut against the thrust platform (57).
5. The adjustable damping shock-absorbing sliding plate front axle structure according to claim 1, characterized in that: The positioning plate (51) and the torsion plate (52) each have a shaft platform (54) on one side of their adjacent end faces, and a thrust bearing (55) sleeved on the fixed shaft (3) is provided between the two shaft platforms (54).
6. The adjustable damping shock-absorbing sliding plate front axle structure according to claim 1, characterized in that: The bridge base (4) is connected to a suspension frame (7) at one end away from the fixed shaft (3), and the bottom of the suspension frame (7) is provided with a wheel axle (8).
7. The adjustable damping shock-absorbing sliding plate front axle structure according to claim 6, characterized in that: The suspension frame (7) is provided with a pad platform (9) and a support shaft (15) on both sides respectively. The bridge base (4) is recessed and installed with a bridge nail (10) at the end away from the fixed shaft (3). The extended end of the bridge nail (10) is connected to the pad platform (9). The bottom surface of the bridge base (4) is provided with a support groove (17). The top end of the support shaft (15) abuts against the support groove (17).
8. The adjustable damping shock-absorbing sliding plate front axle structure according to claim 7, characterized in that: The top and bottom surfaces of the gasket platform (9) are respectively provided with a main gasket (11) and a secondary gasket (12) sleeved on the bridge nail (10). The top end of the main gasket (11) abuts against the bridge base (4). The top end of the secondary gasket (12) forms a conical platform that penetrates the gasket platform (9) and is embedded in the bottom surface of the main gasket (11). The bottom end of the bridge nail (10) is fitted with a locking nut (14) that abuts against the secondary gasket (12).
9. The adjustable damping shock-absorbing sliding plate front axle structure according to claim 7, characterized in that: A sleeve (16) fits into the support groove (17), and the top end of the support shaft (15) extends into the sleeve (16).
10. An adjustment device for an adjustable damping shock-absorbing sliding plate front axle structure, characterized in that: Includes the adjustment mechanism (5) as described in any one of claims 1-9.