Multi-dimensional shock absorption and noise reduction rowing machine guide rail structure

Abstract

The invention discloses a multi-dimensional damping and noise reduction rowing machine guide rail structure, and relates to the field of rowing machines, the multi-dimensional damping and noise reduction rowing machine guide rail structure comprises a rail assembly and a seat, the bottom end of the seat is slidably connected to the rail assembly through a roller assembly, the rail assembly comprises a guide rail and noise reduction covers symmetrically covering the two ends of the guide rail, and the rail is filled with sound insulation cotton; the roller assembly comprises a U-shaped frame with a downward opening, the middle of the inner wall of the U-shaped frame is symmetrically and rotationally connected with two rollers with the outer walls attached to the top ends of the guide rails, the lower portion of the inner side wall of the U-shaped frame is rotationally connected with rollers with the outer walls attached to the top ends of the side walls of the guide rails on the corresponding sides, and the top end of the U-shaped frame is connected with the bottom end of the seat through a plurality of hydraulic rods which are evenly and fixedly arranged; the hydraulic rods are sleeved with damping springs, the two ends of each damping spring are fixedly connected with the bottom end of the seat and the top end of the U-shaped frame correspondingly, and the surfaces of the rollers and the rolling wheels are coated with polytetrafluoroethylene abrasion-resistant coatings.

Description

Technical Field

[0001] This invention patent relates to the field of rowing machines, specifically a multi-dimensional shock absorption and noise reduction rowing machine guide rail structure. Background Technology

[0002] A rowing machine is an aerobic exercise machine that simulates rowing motions on water. It works by driving a resistance system to achieve a coordinated workout of multiple muscle groups throughout the body, and has the effects of fat reduction, body shaping, and improving cardiopulmonary function. It is widely used in home fitness, gyms, and professional physical training settings.

[0003] The guide rails of existing rowing machines are mostly made of aluminum alloy. Therefore, the relationship between the guide rail and the seat pulley is mostly a hard contact structure. When the user exercises on the rowing machine, the seat will move back and forth on the guide rail. The hard contact structure design lacks an elastic buffer layer, which causes the micro-protrusions on the surface to rub and squeeze against each other during the sliding process, forming continuous friction excitation and thus generating vibration. Meanwhile, the guide rails of existing rowing machines are mostly hollow structures. When the seat moves back and forth on the guide rail, it will generate noise due to vibration. In addition, the hollow structure of the guide rail makes it equivalent to an acoustic resonant cavity. When the frequency of the noise matches the natural frequency of the guide rail, a resonance phenomenon will occur. The noise at that frequency will be significantly amplified, further enhancing the propagation effect.

[0004] The purpose of this invention is to provide a multi-dimensional shock-absorbing and noise-reducing rowing machine guide rail structure to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this invention provides the following technical solution: a multi-dimensional shock-absorbing and noise-reducing rowing machine guide rail structure, including a track assembly and a seat, wherein the bottom end of the seat is slidably connected to the track assembly through a roller assembly; The track assembly includes a guide rail and noise-reducing covers symmetrically fitted to both ends of the guide rail, and the track is filled with sound-insulating cotton. The roller assembly includes a U-shaped frame with its opening facing downwards. The inner wall of the U-shaped frame is symmetrically connected to two rollers whose outer walls are both in contact with the top of the guide rail. The lower part of the inner side wall of the U-shaped frame is rotatably connected to a roller whose outer wall is in contact with the top of the corresponding side guide rail side wall. The top of the U-shaped frame is connected to the bottom of the seat through a plurality of evenly and fixedly arranged hydraulic rods. The hydraulic rods are fitted with shock-absorbing springs at both ends, which are fixedly connected to the bottom of the seat and the top of the U-shaped frame, respectively. The rollers and the rollers are coated with a polytetrafluoroethylene wear-resistant coating.

[0006] Furthermore, an extension block with its end abutting against the sound insulation cotton is integrally provided on the inner wall of the noise reduction cover located within the guide rail.

[0007] Furthermore, a shock-absorbing block that wraps around the upper part of the outer wall of the guide rail is fixedly connected to one end of the noise-reducing cover near the guide rail. The cross-section of the extension block and the shock-absorbing block are both honeycomb-shaped, and the noise-reducing cover, the extension block and the shock-absorbing block are all made of soft rubber.

[0008] Furthermore, the top end and the top end of the sidewall of the guide rail are both subjected to hard anodizing to form an oxide layer.

[0009] Furthermore, the cross-section of the top of the guide rail is an outwardly convex arc shape, and the cross-section of the outer wall of the roller matches the cross-section of the top of the guide rail.

[0010] Furthermore, the U-shaped frame is rotatably connected to the roller and the drum via silent ball bearings.

[0011] The beneficial effects achieved by this invention patent are as follows: The combination of hydraulic rods and shock-absorbing springs buffers vertical vibrations, while honeycomb soft rubber shock-absorbing blocks absorb impacts at the ends of the guide rails. The fitted design of the arc-shaped guide rails and matching rollers reduces sliding deviation vibrations, forming a multi-dimensional shock absorption system that includes vertical buffering, impact buffering, and guiding vibration stabilization. This effectively weakens the vibrations generated during start-up, stop-motion, and reversal, preventing machine body swaying and reducing the transmission of vibrations during movement.

[0012] By combining a polytetrafluoroethylene coating with a hard anodized layer and using silent ball bearings, sliding friction noise is significantly reduced. At the same time, the sound insulation cotton filled inside the guide rail absorbs noise and prevents resonance amplification. Combined with the auxiliary sound absorption of the noise reduction cover extension block, a comprehensive noise reduction mechanism of friction noise reduction, resonance suppression and noise absorption is formed, which significantly reduces friction noise, resonance noise and impact noise during movement.

[0013] The rollers and wheels of the U-shaped frame form a two-way limiting structure, ensuring that the seat and roller assembly always slide smoothly along the guide rail, avoiding the risk of lateral displacement or derailment. The matching design of the arc-shaped guide rail and rollers further improves the guiding accuracy, and can maintain trajectory stability even in high-frequency reciprocating motion, improving motion safety and operation smoothness.

[0014] The guide rail undergoes hard anodizing to form a high-hardness oxide layer, and the rollers and wheels are coated with a wear-resistant polytetrafluoroethylene coating. The combination of these two components reduces friction loss. The ball bearings reduce rotational wear, and the soft rubber parts, such as the noise-reducing cover, extension block, and shock-absorbing block, combine elasticity and wear resistance. The materials and structural design of each component take into account the wear resistance requirements, effectively extending the service life of the guide rail structure and the entire machine. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the multi-dimensional vibration reduction and noise reduction rowing machine guide rail structure in the embodiment. Figure 2This is a structural exploded view of the multi-dimensional vibration reduction and noise reduction rowing machine guide rail structure in the embodiment. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] like Figure 1-2 As shown, this invention patent discloses a multi-dimensional shock absorption and noise reduction rowing machine guide rail structure, including: a track assembly 1 and a seat 2, with the bottom end of the seat slidably connected to the track assembly via a roller assembly 3; The track assembly 1 includes a guide rail 11 and noise reduction covers 12 symmetrically fitted to both ends of the guide rail, and the track is filled with sound insulation cotton 13; The roller assembly 3 includes a U-shaped frame 31 with its opening facing downwards. The inner wall of the U-shaped frame 31 is symmetrically connected to two rollers 32 whose outer walls are both in contact with the top of the guide rail 11. The lower part of the inner side wall of the U-shaped frame 31 is rotatably connected to rollers 33 whose outer walls are in contact with the top of the side walls of the corresponding side guide rail 11. The top of the U-shaped frame 31 is connected to the bottom of the seat 2 by a plurality of hydraulic rods 4 that are evenly and fixedly arranged. The hydraulic rods 4 are fitted with shock-absorbing springs 41 at both ends that are fixedly connected to the bottom of the seat 2 and the top of the U-shaped frame 31, respectively. The surfaces of the rollers 32 and rollers 33 are coated with a polytetrafluoroethylene wear-resistant coating.

[0018] Furthermore, such as Figure 2 As shown, an extension block 121 with its end abutting against the sound insulation cotton 13 is integrally provided on the inner wall of the noise reduction cover 12 located in the guide rail 11.

[0019] Furthermore, such as Figure 2 As shown, the noise reduction cover 12 is fixedly connected to a shock-absorbing block 14 that wraps around the upper part of the outer wall of the guide rail 11 at one end near the guide rail 1. The extension block 121 and the shock-absorbing block 14 are both honeycomb in cross-section, and the noise reduction cover 12, the extension block 121 and the shock-absorbing block 14 are all made of soft rubber.

[0020] Furthermore, the top and sidewall tops of the guide rail 11 are subjected to hard anodizing to form an oxide layer.

[0021] Furthermore, such as Figure 2 As shown, the cross-section of the top of the guide rail 11 is an outwardly convex arc shape. The cross-section of the outer wall of the roller 32 matches the cross-section of the top of the guide rail 11. The matching design of the arc-shaped guide rail 11 and the roller 32 further improves the guiding accuracy. Even with high-frequency reciprocating motion, the trajectory can remain stable, improving motion safety and operation smoothness.

[0022] Furthermore, such as Figure 2 As shown, the U-shaped frame 31 is rotatably connected to the roller 32 and the wheel 33 via silent ball bearings 5.

[0023] Based on the above structure, such as Figure 1-2 As shown, during use, the user sits on the seat 2 and performs leg-pushing and paddle-pulling movements. During this process, the roller 32 and the wheel 33 rotate along the top of the guide rail 11 and the top of the side wall of the guide rail 11, respectively. In this process, the roller 32 and the wheel 33 respectively limit the vertical movement of the U-shaped frame 31, ensuring its smooth operation. Furthermore, the roller 32 and the wheel 33 remain in contact with the top of the guide rail 11 and the top of the side wall of the guide rail 11 to prevent displacement of the seat 2 and the roller assembly 3 on the guide rail 1. During the sliding process of the seat 2 and roller assembly 3, the hydraulic rod 4 and shock-absorbing spring 41 buffer the vertical vibration generated by the user during movement. At the same time, the polytetrafluoroethylene coating sprayed on the surface of the roller 32 and roller 33, together with the hard anodized layer of the guide rail 11, reduces frictional resistance and longitudinal vibration during movement. The setting of the shock-absorbing block 14 buffers the violent impact generated when the seat 2 and roller assembly 3 hit the noise reduction cover 12, further reducing longitudinal vibration. The vibration reduced by the design can effectively reduce the noise generated by the seat 2 during the reciprocating movement of the guide rail. Meanwhile, the setting of the sound insulation cotton 13 fills the interior of the guide rail 11, thereby avoiding the resonance phenomenon caused by the noise frequency matching the natural frequency of the guide rail 11, which would lead to noise amplification. Due to the material properties of the sound insulation cotton itself, it can also further absorb noise. Combined with the design of the extension block 121 of the noise reduction cover 12 at the end of the guide rail 11, noise reduction can be further enhanced on the original basis.

[0024] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A multi-dimensional vibration reduction and noise reduction rowing machine guide rail structure, comprising a track assembly (1) and a seat (2), characterized in that, The bottom of the seat is slidably connected to the track assembly via a roller assembly (3); The track assembly (1) includes a guide rail (11) and noise reduction covers (12) symmetrically fitted to both ends of the guide rail, and the track is filled with sound insulation cotton (13). The roller assembly (3) includes a U-shaped frame (31) with its opening facing downwards. The inner wall of the U-shaped frame (31) is symmetrically connected to two rollers (32) whose outer walls are both in contact with the top of the guide rail (11). The lower part of the inner side wall of the U-shaped frame (31) is rotatably connected to a roller (33) whose outer wall is in contact with the top of the side wall of the corresponding side guide rail (11). The top of the U-shaped frame (31) is connected to the bottom of the seat (2) by a plurality of hydraulic rods (4) that are evenly and fixedly arranged. The hydraulic rods (4) are fitted with shock-absorbing springs (41) with their two ends fixedly connected to the bottom of the seat (2) and the top of the U-shaped frame (31) respectively. The rollers (32) and rollers (33) are coated with a polytetrafluoroethylene wear-resistant coating.

2. The multi-dimensional vibration reduction and noise reduction rowing machine guide rail structure according to claim 1, characterized in that: An extension block (121) with its end abutting against the sound insulation cotton (13) is integrally provided on the inner wall of the noise reduction cover (12) located in the guide rail (11).

3. The multi-dimensional vibration reduction and noise reduction rowing machine guide rail structure according to claim 2, characterized in that: The noise reduction cover (12) is fixedly connected to a shock-absorbing block (14) that wraps the upper part of the outer wall of the guide rail (1) at one end near the guide rail (1). The extension block (121) and the shock-absorbing block (14) are both honeycomb in cross section, and the noise reduction cover (12), the extension block (121) and the shock-absorbing block (14) are all made of soft rubber.

4. The multi-dimensional vibration reduction and noise reduction rowing machine guide rail structure according to claim 3, characterized in that: The top and sidewall tops of the guide rail (11) are both subjected to hard anodizing to form an oxide layer.

5. The multi-dimensional vibration reduction and noise reduction rowing machine guide rail structure according to claim 4, characterized in that: The top section of the guide rail (11) is an outwardly convex arc shape, and the outer wall section of the roller (32) matches the top section of the guide rail (11).

6. The multi-dimensional vibration reduction and noise reduction rowing machine guide rail structure according to claim 5, characterized in that: The U-shaped frame (31) is rotatably connected to the roller (32) and the wheel (33) respectively by silent ball bearings (5).

Images