Impact force reversing shock absorber and treadmill
By designing a combination of support base, reversing components, and lateral springs on the treadmill, the direction of impact force transmission is changed, solving the problem of insufficient multi-directional impact adaptability of traditional treadmill shock absorption devices, and achieving efficient cushioning and shock absorption effects and noise reduction.
Patent Information
- Application Number
- CN202520877608.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-07
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-05-07
AI Technical Summary
The shock absorption device of traditional treadmills degrades in performance after prolonged use, and only absorbs vertical impact energy, failing to effectively dissipate multi-directional impact energy, resulting in excessive noise that disturbs neighbors.
The design incorporates a support base, reversing assembly, springs, and a top mounting plate. By using arc-shaped reversing bars and damping rollers, the impact force is converted to a lateral direction, which is then buffered by the laterally positioned springs. This alters the energy transmission direction and improves multi-directional impact adaptability.
It effectively dissipates impact energy from multiple directions, reduces vibration and noise, improves vibration reduction, avoids noise pollution, and extends the service life of equipment.
Smart Images
Figure CN223938540U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fitness equipment technology, and in particular to an impact force reversing shock absorber and a treadmill. Background Technology
[0002] With the increasing awareness of fitness among the general public, the vibration damping performance of fitness equipment has become an important indicator for users' purchasing and experience. Traditional treadmills often use vibration damping materials such as rubber or silicone, relying on the compression deformation of these materials to absorb vertical impacts. However, their vibration damping performance degrades rapidly with increased use. Furthermore, traditional damping devices only absorb vertical impact energy; the undissipated energy is transmitted to the ground through the equipment frame, resulting in poor damping and excessive noise. Therefore, treadmill vibration damping devices still face problems such as insufficient adaptability to multi-directional composite impacts and excessive noise caused by vibration energy transmission. For example, noise generated by treadmill vibrations can be transmitted to residents on higher floors, disturbing their homes.
[0003] Therefore, there is a need to propose an impact force reversing shock absorber and treadmill that changes the direction of impact force transmission, improves multi-directional impact adaptability, thereby enhancing the cushioning and shock absorption effect and reducing noise. Summary of the Invention
[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide an impact force reversing shock absorber and a treadmill.
[0005] To achieve the above objectives, the technical solution of this utility model is as follows:
[0006] An impact-force commutating vibration damper includes a support base, a commutating assembly, a spring, and a top mounting plate. The commutating assembly has three sets, each including a guide, an arc-shaped commutating bar, and several damping rollers. The three guides are evenly arranged in a circular array around a vertical axis on the support base. Each guide includes two parallel clamping plates, which are vertically mounted on the support base, forming an arc-shaped guide groove between them. The arc-shaped commutating bar is installed in the arc-shaped guide groove. Several damping rollers are rotatably disposed between the arc-shaped commutating bar and the arc-shaped guide groove. One end of the arc-shaped commutating bar is rotatably connected to the top mounting plate, and the other end is connected to one end of the spring. The other end of the spring is fixedly connected to the edge of the support base, and the spring is arranged laterally.
[0007] Preferably, the arc-shaped reversing bar has several protrusions spaced apart on the side facing the arc-shaped guide groove, the protrusions being used to separate every two damping rollers.
[0008] Preferably, the damping rollers are rubber rollers.
[0009] Preferably, a swivel connector is also included, which passes through one end of the arc-shaped reversing bar and is rotatably connected to the top mounting plate.
[0010] Preferably, the two ends of the arc-shaped guide groove are provided with through holes, which are used to confine the arc-shaped reversing bar within the arc-shaped guide groove.
[0011] Preferably, the other end of the arc-shaped reversing bar is provided with a connecting part, which abuts against the spring, and the outer diameter of the connecting part is larger than the outer diameter of the spring.
[0012] Preferably, the support base includes a bottom mounting plate and a spring mounting portion. The spring mounting portion is arranged in a uniform annular array around the vertical axis on the edge of the bottom mounting plate. The spring mounting portion forms a cylindrical space for mounting the spring and limiting the range of motion of the spring along the radial direction of the spring.
[0013] Preferably, the support base also includes three arc-shaped sections, with two adjacent arc-shaped sections spaced apart on the bottom mounting plate. The three arc-shaped sections together form a cylindrical structure, and each guide is embedded in the gap between two adjacent arc-shaped sections and mounted on the bottom mounting plate.
[0014] A treadmill includes a treadmill frame and a plurality of impact-reversing shock absorbers as described above, wherein the plurality of impact-reversing shock absorbers are disposed on the treadmill frame.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] (1) The impact force reversing damper proposed in this utility model converts the impact force from multiple directions through the reversing component, and buffers and dampens the impact force through the transversely arranged spring, thereby changing the transmission direction of the impact force. It has high energy dissipation efficiency for the impact force, good damping effect, and reduces the vibration noise caused by the impact force.
[0017] (2) The impact force reversing damper proposed in this utility model is designed with an arc-shaped guide groove, an arc-shaped reversing bar and a damping roller, so that the impact force is transmitted along the extension direction of the arc-shaped reversing bar and the arc-shaped guide groove, thereby improving the adaptability to multi-directional impact forces and thus improving the buffering and damping effect. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of an impact force reversing vibration damper proposed in an embodiment of this application;
[0019] Figure 2 This is a schematic diagram of the support base, commutation assembly, spring, and rotary connector of an impact force reversing damper according to an embodiment of this application.
[0020] Figure 3This is a cross-sectional schematic diagram of the support base, commutation assembly, and spring of an impact force reversing damper according to an embodiment of this application;
[0021] Figure 4 This is an exploded structural diagram of an impact force reversing vibration damper proposed in an embodiment of this application;
[0022] Figure 5 This is a schematic diagram of the structure of the guide proposed in the embodiments of this application;
[0023] Figure 6 A schematic diagram of a treadmill equipped with an impact force reversing shock absorber, as proposed in an embodiment of this application;
[0024] Reference numerals: 1. Support base; 11. Bottom mounting plate; 12. Spring mounting part; 13. Arc-shaped part; 2. Reversing assembly; 21. Guide; 211. Clamping plate; 212. Arc-shaped guide groove; 213. Through hole; 22. Arc-shaped reversing bar; 221. Protrusion; 222. Connecting part; 23. Vibration damping roller; 3. Spring; 4. Top mounting plate; 5. Rotating connector; 6. Treadmill bracket. Detailed Implementation
[0025] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments. The accompanying drawings are merely illustrative to facilitate understanding of the present invention, and their specific proportions can be adjusted according to design requirements. The vertical relationships of relative elements and the definitions of front / back in the graphics described herein should be understood by those skilled in the art to refer to the relative positions of the components; therefore, they can all be flipped to present the same component, and all of this should fall within the scope disclosed in this specification.
[0026] refer to Figures 1 to 6 This application provides an embodiment of a treadmill, including a treadmill frame 6 and a plurality of impact-reversing shock absorbers, which are mounted on the treadmill frame 6. The treadmill frame 6 adopts a commonly available design.
[0027] Specifically, the impact-force reversing damper includes a support base 1, a reversing assembly 2, a spring 3, a top mounting plate 4, and a rotating connector 5. The reversing assembly 2 has three sets, each including a guide 21, an arc-shaped reversing bar 22, and several damping rollers 23. The three guides 21 are evenly arranged in a circular array around a vertical axis on the support base 1; each guide 21 includes two parallel clamping plates 211, which are vertically positioned on the support base 1, and an arc-shaped guide groove 212 is formed between the two clamping plates 211. Figure 2 and Figure 3An arc-shaped commutator bar 22 is installed in an arc-shaped guide groove 212; several damping rollers 23 are rotatably disposed between the arc-shaped commutator bar 22 and the arc-shaped guide groove 212. One end of the arc-shaped commutator bar 22 is rotatably connected to the top mounting plate 4. Specifically, a rotating connector 5 passes through one end of the arc-shaped commutator bar 22 and is rotatably connected to the top mounting plate 4, so that the arc-shaped commutator bar 22 can withstand impact forces from all directions and convert the force direction, thereby improving the buffering and vibration damping effect; the other end of the arc-shaped commutator bar 22 is connected to one end of a spring 3. The other end of the spring 3 is fixedly connected to the edge of the support base 1, and the spring 3 is arranged laterally.
[0028] In the embodiments of this application, the support base 1 is placed on a horizontal ground, with the two clamping plates 211 vertically arranged. The arc-shaped reversing bar 22 moves in a vertical plane parallel to the clamping plates 211, and the spring 3 is arranged laterally, with the spring force of the spring 3 along the lateral direction. The top mounting plate 4 transmits the impact force from multiple directions to the arc-shaped reversing bar 22, causing the impact force to be transmitted along the extension direction of the arc-shaped reversing bar 22 and the arc-shaped guide groove 212, improving multi-directional impact adaptability and thus enhancing the buffering and vibration reduction effect. The impact force reversing vibration damper proposed in this application changes the transmission direction of the impact force through the reversing component 2 and absorbs vibration through the transversely arranged spring 3. It has high energy dissipation efficiency for the impact force, and the setting direction of the spring 3 is different from the direction of the impact force application, which reduces the spring's rebound resonance and further reduces the damage to the user caused by the rebound resonance of the spring 3. Furthermore, the energy of the impact force is dissipated through three sets of reversing components 2, which comprehensively disperses the impact force and has high energy dissipation efficiency. This avoids excessive shock absorption in local areas, which can lead to instability when running, and reduces the impact force on the ground. It not only has a good vibration damping effect, but also reduces the vibration noise generated by the impact force, thus avoiding disturbance to residents.
[0029] For details, please refer to Figure 3 and Figure 4The damping roller 23 is cylindrical and serves as a rolling element. In the embodiments of this application, its side contacts the arc-shaped guide groove 212 and the arc-shaped commutator bar 22. When an impact force is applied to the impact commutator damper proposed in this application, the damping roller 23 bears the impact force, ensuring the working performance of the impact commutator damper and extending its service life. Specifically, the damping roller 23 is mainly made of rubber material, which can deform. The arc-shaped commutator bar 22 has several protrusions 221 spaced apart on the side facing the arc-shaped guide groove 212. The protrusions 221 are used to separate every two damping rollers 23 to avoid the damping rollers 23 from accumulating, affecting the normal operation of the commutator assembly 2, and reducing the dissipation efficiency. By setting multiple rollers between the arc-shaped commutator bar 22 and the arc-shaped guide groove 212, the commutator assembly 2 can withstand impact forces from different directions. Furthermore, the energy of the impact force is transmitted to the spring 3 through the rolling of the damping roller 23 and the arc-shaped commutator bar 22 set in the arc-shaped guide groove 212 for buffering, thus ensuring the energy dissipation efficiency of the impact force commutator damper.
[0030] For details, please refer to Figure 3 and Figure 5 The arc-shaped guide groove 212 has through holes 213 at both ends. The through holes 213 are used to confine the arc-shaped reversing bar 22 within the arc-shaped guide groove 212 to prevent the arc-shaped reversing bar 22 from being pushed out of the arc-shaped guide groove 212 due to excessive impact force.
[0031] For details, please refer to Figures 2 to 4 The other end of the arc-shaped commutator bar 22 is provided with a connecting part 222, which abuts against the spring 3. The outer diameter of the connecting part 222 is larger than the outer diameter of the spring 3, thereby increasing the contact area between the connecting part 222 and the spring 3 and improving the energy conversion efficiency.
[0032] Specifically, the support base 1 includes a bottom mounting plate 11, a spring mounting portion 12, and three arc-shaped portions 13. The spring mounting portions 12 are arranged in a uniform ring array around the vertical axis on the edge of the bottom mounting plate 11. The spring mounting portions 12 form a cylindrical space for mounting the spring 3 and restricting the radial movement range of the spring 3, preventing the spring 3 from moving radially, improving the vibration damping effect, and ensuring energy dissipation efficiency. Furthermore, two adjacent arc-shaped portions 13 are spaced apart on the bottom mounting plate 11, and the three arc-shaped portions 13 enclose a cylindrical structure. Each guide 21 is embedded in the gap between two adjacent arc-shaped portions 13 and mounted on the bottom mounting plate 11, which facilitates the assembly of the guide 21 onto the support base 1, and the structure is stable and highly practical.
[0033] The impact force reversing vibration damper proposed in the embodiments of this application will be described below with a specific vibration reduction process.
[0034] The treadmill is placed on a level surface. When a user runs on the treadmill, the treadmill vibrates. Because the impact force on the treadmill's running board is multi-directional, the impact force reversing damper disperses the impact force to three sets of reversing components 2 via the top mounting plate 4. In each set of reversing components 2, the arc-shaped reversing bar 22 and the damping roller 23 rolling between the arc-shaped reversing bar 22 and the arc-shaped guide groove guide the impact force to the connecting part 222 and the horizontally arranged spring 3. The spring 3 continuously compresses and resets in a direction parallel to the ground, thus damping and absorbing vibration. Transmitting the multi-directional impact force to the horizontally arranged spring 3 for buffering results in good vibration damping, reduces noise, and also reduces the impact damage to the user's joints caused by the rebound resonance of the spring 3. The impact force reversing damper proposed in the embodiments of this application has the performance of buffering multi-directional impact force, which can improve the vibration damping effect, and the impact force is not directly transmitted to the ground through the treadmill, thus reducing the noise when using the treadmill.
[0035] The above embodiments are only used to further illustrate the technical solution of this utility model, but this utility model is not limited to the embodiments. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this utility model shall fall within the protection scope of the technical solution of this utility model.
Claims
1. An impact-force reversing vibration damper, characterized in that: The device includes a support base, a reversing assembly, a spring, and a top mounting plate. The reversing assembly has three sets, each comprising a guide, an arc-shaped reversing bar, and several damping rollers. The three guides are evenly arranged in a circular array around a vertical axis on the support base. Each guide includes two parallel clamping plates, two of which are vertically positioned on the support base, forming an arc-shaped guide groove between them. The arc-shaped reversing bar is installed in the arc-shaped guide groove. Several damping rollers are rotatably disposed between the arc-shaped reversing bar and the arc-shaped guide groove. One end of the arc-shaped reversing bar is rotatably connected to the top mounting plate, and the other end is connected to one end of the spring. The other end of the spring is fixedly connected to the edge of the support base, and the spring is arranged laterally.
2. The impact force reversing vibration damper according to claim 1, characterized in that: The arc-shaped reversing bar has several protrusions spaced apart on one side facing the arc-shaped guide groove, and the protrusions are used to separate every two of the damping rollers.
3. The impact force reversing vibration damper according to claim 1, characterized in that: The vibration damping roller is a rubber roller.
4. The impact force reversing vibration damper according to claim 1, characterized in that: It also includes a rotary connector, which passes through one end of the arc-shaped reversing bar and is rotatably connected to the top mounting plate.
5. The impact force reversing vibration damper according to claim 1, characterized in that: The arc-shaped guide groove has through holes at both ends, which are used to confine the arc-shaped reversing bar within the arc-shaped guide groove.
6. The impact force reversing vibration damper according to claim 1, characterized in that: The other end of the arc-shaped reversing bar is provided with a connecting part, which abuts against the spring, and the outer diameter of the connecting part is larger than the outer diameter of the spring.
7. The impact force reversing vibration damper according to claim 1, characterized in that: The support base includes a bottom mounting plate and a spring mounting portion. The spring mounting portion is arranged in a uniform ring array around the vertical axis at the edge of the bottom mounting plate. The spring mounting portion forms a cylindrical space for mounting the spring and limiting the range of motion of the spring along the radial direction of the spring.
8. The impact force reversing vibration damper according to claim 7, characterized in that: The support base also includes three arc-shaped portions, with two adjacent arc-shaped portions spaced apart on the bottom mounting plate. The three arc-shaped portions together form a cylindrical structure. Each guide is embedded in the gap between two adjacent arc-shaped portions and is mounted on the bottom mounting plate.
9. A treadmill, characterized in that: It includes a treadmill frame and a plurality of impact force reversing dampers as described in any one of claims 1 to 8, wherein the plurality of impact force reversing dampers are disposed on the treadmill frame.