A running machine damping structure

Abstract

The utility model provides a kind of treadmill damping structure, it is related to damping structure technical field, including running belt frame, upper running plate and lower running plate are symmetrically installed in the running belt frame upper and lower, the inner side of running belt frame is opened with damping groove corresponding upper running plate both sides, the both sides of upper running plate are equipped with mounting plate for being inserted into damping groove;Damping groove is equipped with support plate, the bottom of support plate is connected with damping groove bottom surface by buffer assembly, the upper end surface of support plate and the distance between damping groove top surface is same with the thickness of upper running plate;Upper running plate and lower running plate are movably butted by unloading butt joint structure;By setting upper running plate and lower running plate in running belt frame, and setting damping groove and buffer assembly in the both sides of upper running plate, multi-stage damping effect is realized, when upper running plate is impacted by footstep, the mounting plate of its both sides is inserted into damping groove, and part of impact force is absorbed by buffer assembly, so as to reduce the pressure on knee joint.

Description

Technical Field

[0001] This utility model relates to the field of shock absorption structure technology, and in particular to a shock absorption structure for a treadmill. Background Technology

[0002] In current treadmill designs, most shock absorption measures are concentrated in the area between the treadmill body and the base. Shock-absorbing pads or springs are placed between these areas to absorb external vibrations, thereby improving the stability of the treadmill and the comfort of the user. However, the shock absorption structure on the treadmill body is relatively simple, and the typically fixed design prevents the upper and lower running boards (i.e., the inner surfaces of the running belt) from effectively deforming and recovering energy when impacted by footsteps. A single shock absorption design at the bottom has limited capacity to absorb the impact generated during running, failing to further reduce pressure on the knee joint and increasing the risk of knee injury. Some improvements attempt to address this issue by increasing the flexibility and elasticity of the running board itself, or by adding a deformable buffer layer between the running board and the body. However, these designs often suffer from limited shock absorption and complex structures, failing to meet the user's dual needs for shock absorption and comfort. Therefore, we propose a new treadmill shock absorption structure. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and to effectively absorb the impact force during running and reduce the pressure on the knee joint between the running belt and the running board of the treadmill.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A treadmill shock absorption structure includes a running belt frame, in which an upper running plate and a lower running plate are symmetrically installed. Shock absorption grooves are formed on the inner side of the running belt frame corresponding to the two sides of the upper running plate. Mounting plates are provided on both sides of the upper running plate for inserting into the shock absorption grooves. The shock-absorbing groove is provided with a support plate. The bottom of the support plate is connected to the bottom surface of the shock-absorbing groove through a buffer assembly. The distance between the upper surface of the support plate and the top surface of the shock-absorbing groove is the same as the thickness of the upper running plate. The upper and lower running boards are connected via a force-relieving docking structure.

[0005] Furthermore, the two shorter sides of the upper and lower running boards have rounded chamfers to be close to the front and rear rollers of the treadmill, and to cover the running belt between the outer sides of the upper and lower running boards and the two rollers.

[0006] Furthermore, the lower running plate is welded between the running belt frames, and the lower running plate is made of metal.

[0007] Furthermore, the shock-absorbing groove is opened along the length direction of the running belt frame, and the support plate is arranged along the length direction of the shock-absorbing groove.

[0008] Furthermore, a support rubber pad is adhered to the top of the support plate.

[0009] Furthermore, the support plate is provided with guide frames at both ends, and the guide frames are built into the limiting grooves opened at both ends of the shock absorption groove.

[0010] Furthermore, the buffer assembly includes an energy-absorbing spring and a rubber energy-absorbing column. Each energy-absorbing spring and rubber energy-absorbing column consists of several units, arranged at equal intervals along the length direction, with both ends fixedly connected to the bottom of the support plate and the bottom surface of the shock-absorbing groove, respectively.

[0011] Furthermore, the unloading docking structure includes a lateral unloading seat and a longitudinal unloading seat, which are welded to the top of the lower running plate. Unloading grooves are provided at the top of the lateral and longitudinal unloading seats, and an unloading frame is provided at the bottom of the upper running plate corresponding to the unloading grooves. A damping pad is provided inside the unloading grooves.

[0012] Compared with the prior art, the beneficial effects of this utility model are: By setting an upper running board and a lower running board inside the running belt frame, and setting shock-absorbing grooves and buffer components on both sides of the upper running board, a multi-level shock absorption effect is achieved. When the upper running board is impacted by footsteps, the mounting plates on both sides are inserted into the shock-absorbing grooves and absorb part of the impact force through the buffer components (including energy-absorbing springs and rubber energy-absorbing columns), thereby reducing the pressure on the knee joint.

[0013] The upper and lower running boards are connected by a stress-relief docking structure. This design allows the upper running board to distribute some of the impact force to the lower running board when it is impacted, and then transfer it to the bottom shock absorption structure through the running belt frame, further improving the effective recovery and dispersion of energy. Attached Figure Description

[0014] Figure 1 A schematic diagram of the overall structure of a treadmill shock absorption structure provided by this utility model; Figure 2 A schematic diagram of the disassembled upper and lower running plates of a treadmill shock absorption structure provided by this utility model; Figure 3 A schematic diagram of a side running belt frame structure of a treadmill shock absorption structure provided by this utility model; Figure 4 A schematic diagram of a shock-absorbing frame structure for a treadmill provided by this utility model; Figure 5 The present invention provides a top view and a front view of the shock-absorbing groove part of a treadmill shock-absorbing structure.

[0015] Legend: 1. Running belt frame; 2. Place the running board; 3. Lower the running board; 4. Vibration damping groove; 41. Support plate; 411. Supporting rubber pad; 412. Guide frame; 42. Buffer assembly; 421. Energy-absorbing spring; 422. Rubber energy-absorbing column; 43. Limiting groove; 5. Mounting plate; 6. Unloading docking structure; 61. Lateral unloading seat; 62. Longitudinal unloading seat; 63. Unloading groove; 64. Unloading frame; 65. Damping pad. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0017] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0018] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items. Example 1

[0020] like Figure 1-5As shown, this utility model provides a technical solution: a treadmill shock absorption structure, including a running belt frame 1. The running belt frame 1 is the supporting frame of the entire treadmill shock absorption structure. It is made of high-strength, lightweight metal material to ensure that it is not too bulky while bearing greater pressure. An upper running plate 2 and a lower running plate 3 are symmetrically installed inside the running belt frame 1. This symmetrical installation method helps to maintain the balance and stability of the treadmill during operation.

[0021] The inner side of the running belt frame 1 is provided with shock-absorbing grooves 4 corresponding to the two sides of the upper running board 2. The shock-absorbing grooves 4 are customized according to the design requirements to accommodate the support plate 41 and the buffer component 42 to be installed later. The upper running board 2 is provided with mounting plates 5 on both sides. The size of the mounting plates 5 matches the opening size of the shock-absorbing grooves 4 and is used to snap into the shock-absorbing grooves 4 to achieve the initial positioning of the upper running board 2 on the running belt frame 1. The mounting plates 5 and the main body of the upper running board 2 are manufactured with an integral molding process to ensure the connection strength and stability between the two and to prevent loosening or falling off during running.

[0022] The shock-absorbing groove 4 is equipped with a support plate 41. The support plate 41 is made of engineering plastic material with certain strength and toughness. It can not only bear the weight of the upper running board 2, but also undergo elastic deformation to a certain extent to assist in cushioning. The bottom of the support plate 41 is connected to the bottom surface of the shock-absorbing groove 4 through a buffer component 42. The buffer component 42 can undergo elastic deformation when subjected to pressure, absorbing and dispersing the impact force from the upper running board 2, thereby playing a shock-absorbing role. The distance between the upper end surface of the support plate 41 and the top surface of the shock-absorbing groove 4 is the same as the thickness of the upper running board 2. In this way, when the mounting plate 5 of the upper running board 2 is inserted into the shock-absorbing groove 4, it can stably provide a flat surface. Even if it is impacted by footsteps, it will not vibrate up and down, ensuring the stability of the running belt during operation.

[0023] The upper running plate 2 and the lower running plate 3 are movably connected through the force-relieving connection structure 6. This movable connection method allows the upper running plate 2 to generate a certain pressure relative to the lower running plate 3 when subjected to impact force, thereby dispersing and mitigating the impact force and improving the shock absorption effect. Example 2

[0024] like Figure 1-5 As shown, the two shorter sides of the upper running plate 2 and the lower running plate 3 have rounded chamfers on their corresponding surfaces. The rounded chamfers have multiple functions. On the one hand, they allow the upper running plate 2 and the lower running plate 3 to approach the front and rear rollers of the treadmill more smoothly, reducing friction and collision with the rollers and lowering operating noise. On the other hand, the rounded chamfers help the running belt transition between the upper running plate 2, the lower running plate 3 and the rollers. The running belt covers the outer surface of the upper running plate 2 and the lower running plate 3 and between the two rollers. The running belt is usually made of high-strength, wear-resistant rubber material to provide the running surface. At the same time, the rollers are also driven by a motor.

[0025] The lower running plate 3 is welded to the running belt frame 1. This welding method ensures the strong connection between the lower running plate 3 and the running belt frame 1, and can withstand greater pressure and impact. The lower running plate 3 is made of metal, such as aluminum alloy. Aluminum alloy has the advantages of being lightweight, high-strength, and corrosion-resistant. It can meet the performance requirements of the treadmill for the lower running plate 3 without making the treadmill too heavy.

[0026] The shock-absorbing groove 4 is opened along the length of the running belt frame 1. This long strip opening method can provide sufficient installation space for the support plate 41 and the buffer assembly 42, and can make the shock absorption effect evenly distributed along the entire length of the running belt frame 1. The support plate 41 is set along the length of the shock-absorbing groove 4 to ensure that the support plate 41 can fully support the mounting plate 5 of the upper running plate 2.

[0027] A support rubber pad 411 is bonded to the top of the support plate 41. The support rubber pad 411 is made of highly elastic and wear-resistant rubber material. It can further buffer the pressure transmitted from the upper running plate 2, reduce the direct collision and wear between the upper running plate 2 and the support plate 41, and also play a certain role in noise reduction. In addition, it works with the support plate 41 to limit and resist the upper running plate 2 to prevent shaking when it is impacted (there is slight shaking, which needs to be alleviated by other shock-absorbing components).

[0028] The support plate 41 is provided with guide frames 412 at both ends. The guide frames 412 are L-shaped. The horizontal part is fixedly connected to the support plate 41, and the vertical part is built into the limiting grooves 43 opened at both ends of the shock absorption groove 4. The size of the limiting grooves 43 matches the vertical part of the guide frame 412, which can limit the displacement direction of the support plate 41 when it is subjected to impact force, so that it can only move up and down in a direction perpendicular to the upper surface of the running belt frame 1, so as to prevent the support plate 41 from swaying or tilting, and ensure the stability and reliability of the shock absorption structure.

[0029] The buffer assembly 42 includes an energy-absorbing spring 421 and a rubber energy-absorbing column 422. Each energy-absorbing spring 421 and rubber energy-absorbing column 422 consists of several units, which are arranged at equal intervals along the length direction. Their two ends are fixedly connected to the bottom of the support plate 41 and the bottom surface of the damping groove 4, respectively. The energy-absorbing spring 421 has good elastic recovery ability and can undergo elastic deformation when subjected to pressure, converting the impact force into elastic potential energy for storage. When the pressure is removed, it can quickly return to its original shape and release the stored elastic potential energy. The rubber energy-absorbing column 422 utilizes the nonlinear elastic characteristics of rubber material and can undergo large deformation when subjected to pressure, absorbing a large amount of impact energy. In addition, the rubber energy-absorbing column 422 can also play a certain damping role, reducing the generation of vibration and noise. The energy-absorbing spring 421 and rubber energy-absorbing column 422 work together to give full play to their respective advantages and improve the shock absorption performance of the buffer assembly 42.

[0030] The force-relieving docking structure 6 includes a transverse force-relieving seat 61 and a longitudinal force-relieving seat 62. The transverse force-relieving seat 61 and the longitudinal force-relieving seat 62 are welded to the top of the lower running plate 3. The welding process ensures the connection strength between them and the lower running plate 3. The top of the transverse force-relieving seat 61 and the longitudinal force-relieving seat 62 are provided with force-relieving grooves 63. The force-relieving grooves 63 are adapted to the force-relieving frame 64 to accommodate the docking of the force-relieving frame 64. The bottom of the upper running plate 2 is provided with a force-relieving frame 64 corresponding to the force-relieving groove 63. The force-relieving groove 63 is provided with a damping pad 65. The damping pad 65 is made of rubber material with a high damping coefficient. When the upper running plate 2 is subjected to impact force, the force-relieving frame 64 will come into contact with the damping pad 65 in the force-relieving groove 63 and generate slight friction (generated by micro-vibration). The damping pad 65 can consume impact energy through its own damping characteristics, reduce the transmission of impact force to the lower running plate 3 and the running belt frame 1, and further improve the shock absorption effect of the treadmill.

[0031] The working process of this utility model is as follows: When using a treadmill shock absorption structure, when the user starts running on the treadmill, the feet apply pressure to the running belt, and the running belt transmits the pressure to the upper running plate 2. After the upper running plate 2 is subjected to pressure, its mounting plate 5 will press down on the support plate 41. The energy-absorbing spring 421 and rubber energy-absorbing column 422 in the buffer assembly 42 at the bottom of the support plate 41 undergo elastic deformation, absorbing and dispersing the impact force from the upper running plate 2. At the same time, the unloading frame 64 will have slight friction with the damping pad 65 in the unloading groove 63. The damping pad 65 further consumes the impact energy through its own damping characteristics, reducing the transmission of impact force to the lower running plate 3 and the running belt frame 1.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A treadmill shock absorption structure, comprising a running belt frame (1), wherein an upper running plate (2) and a lower running plate (3) are symmetrically installed vertically within the running belt frame (1), characterized in that: The inner side of the running belt frame (1) is provided with shock-absorbing grooves (4) on both sides of the upper running plate (2). The upper running plate (2) is provided with mounting plates (5) on both sides for inserting into the shock-absorbing grooves (4). The shock-absorbing groove (4) is provided with a support plate (41). The bottom of the support plate (41) is connected to the bottom surface of the shock-absorbing groove (4) through a buffer assembly (42). The distance between the upper end surface of the support plate (41) and the top surface of the shock-absorbing groove (4) is the same as the thickness of the upper running plate (2). The upper running plate (2) and the lower running plate (3) are connected by a force-relieving docking structure (6).

2. The treadmill shock absorption structure according to claim 1, characterized in that: The two shorter sides of the upper running plate (2) and the lower running plate (3) are provided with rounded chamfers to be close to the front and rear rollers of the treadmill, and to cover the running belt between the outer side of the upper running plate (2) and the lower running plate (3) and the two rollers.

3. The treadmill shock absorption structure according to claim 1, characterized in that: The lower running plate (3) is welded between the running belt frame (1), and the lower running plate (3) is made of metal.

4. The treadmill shock absorption structure according to claim 1, characterized in that: The shock-absorbing groove (4) is opened along the length direction of the running belt frame (1), and the support plate (41) is set along the length direction of the shock-absorbing groove (4).

5. The treadmill shock absorption structure according to claim 1, characterized in that: The top of the support plate (41) is bonded with a support rubber pad (411).

6. The treadmill shock absorption structure according to claim 1, characterized in that: The support plate (41) is provided with guide frames (412) at both ends, and the guide frames (412) are built into the limiting grooves (43) opened at both ends of the shock absorption groove (4).

7. The treadmill shock absorption structure according to claim 1, characterized in that: The buffer assembly (42) includes an energy-absorbing spring (421) and a rubber energy-absorbing column (422). The energy-absorbing spring (421) and the rubber energy-absorbing column (422) are each composed of several, arranged at equal intervals along the length direction, and their two ends are fixedly connected to the bottom of the support plate (41) and the bottom surface of the shock-absorbing groove (4), respectively.

8. The treadmill shock absorption structure according to claim 1, characterized in that: The unloading docking structure (6) includes a transverse unloading seat (61) and a longitudinal unloading seat (62). The transverse unloading seat (61) and the longitudinal unloading seat (62) are welded to the top of the lower running plate (3). Unloading grooves (63) are provided at the top of the transverse unloading seat (61) and the longitudinal unloading seat (62). Unloading frame (64) is provided at the bottom of the upper running plate (2) corresponding to the unloading groove (63). Damping pads (65) are provided inside the unloading groove (63).

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