Low-noise pulley assembly of sports equipment

Abstract

The utility model relates to the technical field of sports equipment, in particular to a low-noise pulley assembly of sports equipment, which comprises a U-shaped frame, a pulley is arranged on the inner side of the U-shaped frame, an annular groove is arranged along the outer side of the pulley, the side surface of the pulley is rotatably connected with the inner wall of the U-shaped frame through a connecting shaft, and a fixing frame is mounted at the top of the U-shaped frame; containing grooves are formed in the two sides of the U-shaped frame, oil storage boxes are arranged in the containing grooves, the two sides of each oil storage box penetrate through the corresponding containing grooves, skirt edges are installed on the outer wall of each oil storage box and detachably installed on the U-shaped frame, and oil discharging pipes are arranged in the centers of the two sides of the bottom of each oil storage box. When the low-noise pulley assembly is used, the low-noise pulley assembly of the sports equipment is correspondingly arranged at the joint of the connecting shaft and the U-shaped frame through the oil discharge pipe, so that lubricating oil in the oil storage box can drop on the connecting shaft along the oil discharge pipe, the joint of the connecting shaft and the U-shaped frame is lubricated, abrasion between the connecting shaft and the U-shaped frame is reduced, and the service life of the connecting shaft and the U-shaped frame is prolonged. Therefore, the generation of a noise trigger source is avoided.

Description

Technical Field

[0001] This utility model relates to the field of sports equipment technology, and in particular to a low-noise pulley assembly for sports equipment. Background Technology

[0002] Sports equipment refers to devices or tools used for physical exercise, designed to help people improve their strength, endurance, flexibility, and overall physical fitness through various forms of physical exercise and fitness activities.

[0003] Existing sports equipment often includes pulley assemblies to change the direction of force applied to the ropes. However, during use, the pulleys inevitably experience wear due to lack of lubrication. This wear leads to friction and collisions between the pulleys during subsequent use, generating noise and potentially causing distraction and discomfort for the user. To address these issues, we propose a low-noise pulley assembly for sports equipment. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by proposing a low-noise pulley assembly for sports equipment.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a low-noise pulley assembly for sports equipment is designed, including a U-shaped frame, a pulley is provided on the inner side of the U-shaped frame, an annular groove is provided on the outer side of the pulley, the side of the pulley is rotatably connected to the inner wall of the U-shaped frame through a connecting shaft, and a fixing frame is installed on the top of the U-shaped frame.

[0006] The U-shaped frame has accommodating slots on both sides, and an oil storage box is placed inside the accommodating slots. The oil storage box has accommodating slots on both sides, and a skirt is installed on the outer wall of the oil storage box. The skirt can be detachably installed on the U-shaped frame. An oil drain pipe is located at the center of both sides of the bottom of the oil storage box, and the bottom of the oil drain pipe corresponds to the rotating connection of the connecting shaft.

[0007] A baffle is provided at the upper part of the inside of the oil storage box. The side of the baffle is fixed to the inner wall of the oil storage box. Two limiting plates are provided at the lower center of the baffle. The bottom of the two limiting plates is inclined towards the side that is relatively far apart. The frontal projection of the oil drain pipe is located between the two limiting plates. The bottom of the limiting plates is fixed to the bottom of the oil storage box, and the side of the limiting plates is fixed to the inner wall of the oil storage box.

[0008] Preferably, a first flow guide seat is installed at the bottom center of the baffle. The first flow guide seat is an inverted cone shape, and the bottom of the first flow guide seat is located between two limiting plates.

[0009] Preferably, a second guide seat is installed at the bottom of each of the two limiting plates on the side that is relatively close to each other. The bottom of the second guide seat is fixed to the bottom of the oil reservoir, and the bottom of the second guide seat corresponds to the oil drain pipe.

[0010] Preferably, an oil filling hole is installed on the top of the oil reservoir.

[0011] Preferably, the pulley has a through groove on its side, and the through groove runs through the pulley, making the pulley a hollow design.

[0012] Preferably, the fixing frame includes a connecting seat, which is fixed on the top of the U-shaped frame. A first connecting ring is fixed on the top of the connecting seat, and a second connecting ring is connected to the first connecting ring. A mounting plate is installed on the second connecting ring, and mounting holes are provided at the corners of the mounting plate.

[0013] Preferably, both the surface of the first connecting ring and the surface of the second connecting ring are covered with a cushioning rubber sleeve.

[0014] Preferably, a limiting seat with both sides bent downwards into an "L" shape is provided at the top inside the U-shaped frame, wherein the top of the pulley is placed inside the limiting seat, and the two ends of the limiting seat are detachably connected to the U-shaped frame through connectors.

[0015] The design scheme proposed in this utility model has the following beneficial effects in application:

[0016] 1. The low-noise pulley assembly of this sports equipment is installed at the connection between the connecting shaft and the U-shaped frame via an oil drain pipe, allowing the lubricating oil in the oil reservoir to drip onto the connecting shaft along the oil drain pipe, thereby lubricating the connection between the connecting shaft and the U-shaped frame, reducing wear between the two and thus avoiding the generation of noise triggering sources.

[0017] 2. The low-noise pulley assembly of this sports equipment uses lubricating oil injected into the oil storage box. When the sports equipment is in use, the lubricating oil stored on both sides of the limiting plate can fall between the two limiting plates and flow out from the oil drain pipe after the pulley assembly shakes. This controls the amount of lubricating oil used and avoids waste of lubricating oil. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0020] Figure 3 This is a side view of the present invention;

[0021] Figure 4This is a schematic diagram of the internal structure of the oil storage box of this utility model.

[0022] In the diagram: 1. U-shaped frame; 2. Pulley; 3. Connecting shaft; 4. Annular groove; 5. Through groove; 6. Limiting seat; 7. Connecting piece; 8. Oil reservoir; 9. Oil filling hole; 10. Oil drain pipe; 11. Baffle; 12. First guide seat; 13. Limiting plate; 14. Second guide seat; 15. Receiving groove; 16. Skirt; 17. Connecting seat; 18. First connecting ring; 19. Second connecting ring; 20. Mounting plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Reference Figures 1-4 A low-noise pulley assembly for sports equipment includes a U-shaped frame 1, a pulley 2 on the inner side of the U-shaped frame 1, and an annular groove 4 on the outer side of the pulley 2 to limit the pull rope placed on the pulley 2, thereby ensuring the effective interaction between the pulley 2 and the pull rope.

[0025] Among them, a through groove 5 is provided on the side of the pulley 2, and the through groove 5 passes through the pulley 2, making the pulley 2 a hollow design and improving the lightweight of the pulley 2.

[0026] To further improve the stability of the pull rope on the pulley 2, a limiting seat 6 with both sides bent downward in an "L" shape is provided at the top inside the U-shaped frame 1. The top of the pulley 2 is placed inside the limiting seat 6, and the two ends of the limiting seat 6 are detachably connected to the U-shaped frame 1 through the connector 7. This can wrap and limit the pull rope placed in the annular groove 4, preventing the pull rope from coming out of the annular groove 4 when the pulley assembly is in use.

[0027] The side of pulley 2 is rotatably connected to the inner wall of U-shaped frame 1 via connecting shaft 3. A fixing frame is installed on the top of U-shaped frame 1, wherein, for example... Figure 1 As shown, the fixing frame includes a connecting seat 17, which is fixed on the top of the U-shaped frame 1. A first connecting ring 18 is fixed on the top of the connecting seat 17, and a second connecting ring 19 is connected to the first connecting ring 18. A mounting plate 20 is installed on the second connecting ring 19. Mounting holes are provided at the corners of the mounting plate 20. The U-shaped frame 1 is connected by the sleeve of the two connecting rings, so that the U-shaped frame 1 has more rotation angles. This improves the ability of the pulley assembly to turn in the direction of the force on the pull rope when it is subjected to a force in the tilting direction. The mounting plate 20 allows the pulley assembly to be fixed to the sports equipment with bolts.

[0028] It should be noted that both the surface of the first connecting ring 18 and the surface of the second connecting ring 19 are covered with a buffer rubber sleeve to prevent loud noises when the two connecting rings collide or bump.

[0029] like Figure 1 and Figure 4 As shown, a receiving groove 15 is provided on both sides of the U-shaped frame 1, and an oil storage box 8 is placed inside the receiving groove 15. The receiving groove 15 is provided on both sides of the oil storage box 8, and a skirt 16 is installed on the outer wall of the oil storage box 8. The skirt 16 can be detachably installed on the U-shaped frame 1 to facilitate the installation and removal of the oil storage box 8 on the U-shaped frame 1. An oil drain pipe 10 is located at the center of both sides of the bottom of the oil storage box 8. The bottom of the oil drain pipe 10 corresponds to the rotation connection of the connecting shaft 3, so that the lubricating oil in the oil storage box 8 can fall along the oil drain pipe 10 onto the connection between the connecting shaft 3 and the U-shaped frame 1 to lubricate the connecting shaft 3, making the transmission of the pull rope to the pulley 2 smoother and reducing the generation of noise.

[0030] An oil filling hole 9 is installed on the top of the oil storage box 8, through which lubricating oil can be added into the oil storage box 8. A baffle 11 is provided at the upper part of the inside of the oil storage box 8. The side of the baffle 11 is fixed to the inner wall of the oil storage box 8. The lubricating oil falling into the oil storage box 8 will be blocked by the baffle 11 and will flow down along the baffle 11 to both ends of the oil storage box 8. Two limiting plates 13 are provided in the middle of the lower part of the baffle 11. The bottom of the two limiting plates 13 is inclined towards the relatively far side, so that the lubricating oil added into the oil storage box 8 is concentrated in the space of the relatively far side of the two limiting plates 13. The frontal projection of the oil drain pipe 10 is located between the two limiting plates 13, and the bottom of the limiting plate 13 is fixed to the bottom of the oil storage box 8, while the side of the limiting plate 13 is fixed to the inner wall of the oil storage box 8.

[0031] Specifically, when the pulley assembly is in use, the continuously pulled rope will cause the entire pulley assembly to shake, causing the lubricating oil in the oil reservoir 8 to shake as well. This allows the lubricating oil to fall onto the baffle 11 along the limiting plate 13. Under the obstruction of the baffle 11, some of the lubricating oil splashed up by the shaking will fall between the two limiting plates 13, and then fall into the oil drain pipe 10 and drip onto the connecting shaft 3 as it slides down. In this way, the amount of lubricating oil used can be controlled through a simple mechanical structure to prevent the lubricating oil from being wasted due to continuous use.

[0032] It should be noted that, in order to better direct the lubricating oil between the two limiting plates 13, a first guide seat 12 is installed at the bottom center of the baffle 11. The first guide seat 12 is an inverted cone shape, and the bottom of the first guide seat 12 is located between the two limiting plates 13. In addition, a second guide seat 14 is installed at the bottom of the two limiting plates 13 on the relatively close side. The bottom of the second guide seat 14 is fixed to the bottom of the oil reservoir 8, and the bottom of the second guide seat 14 corresponds to the oil drain pipe 10, so that the lubricating oil falling between the two limiting plates 13 can be concentrated at the oil drain pipe 10.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A low noise pulley assembly for exercise equipment, characterized by: The utility model relates to a kind of oil storage box, including U-shaped frame (1), pulley (2) is equipped in the inside of U-shaped frame (1), annular groove (4) is opened along the outside of pulley (2), the side of pulley (2) is rotatably connected with the inner wall of U-shaped frame (1) by connecting shaft (3), and fixed frame is installed at the top of U-shaped frame (1); Both sides of U-shaped frame (1) are equipped with accommodating groove (15), and oil storage box (8) is placed in accommodating groove (15), both sides of oil storage box (8) are penetrated accommodating groove (15) and are arranged, and skirt (16) is installed on the outer wall of oil storage box (8), skirt (16) is detachably mounted on U-shaped frame (1), oil drain pipe (10) is arranged at the bottom of both sides of oil storage box (8), and the bottom of oil drain pipe (10) corresponds with the rotatable connection of connecting shaft (3). The inside upper end of oil storage box (8) is equipped with baffle (11), the side of baffle (11) is fixed with the inner wall of oil storage box (8), and two limit plates (13) are equipped at the lower middle of baffle (11), the bottom of two limit plates (13) is inclinedly arranged towards opposite side away from each other, wherein, the front view projection of oil drain pipe (10) is located between two limit plates (13), and the bottom of limit plate (13) is fixed on the bottom of oil storage box (8), while the side of limit plate (13) is fixed with the inner wall of oil storage box (8).

2. A low noise pulley assembly for exercise equipment as defined in claim 1 wherein: The bottom central part of baffle (11) is equipped with first flow guide seat (12), first flow guide seat (12) is inverted cone, and the bottom of first flow guide seat (12) is located between two limit plates (13).

3. A low noise pulley assembly for exercise equipment as defined in claim 1 wherein: Second flow guide seat (14) is installed on the bottom of both sides of two limit plates (13) close to each other, the bottom of second flow guide seat (14) is fixed on the bottom of oil storage box (8), and the bottom of second flow guide seat (14) corresponds with oil drain pipe (10).

4. A low noise pulley assembly for exercise equipment as defined in claim 1 wherein: Oil injection hole (9) is installed on the top of oil storage box (8).

5. A low noise pulley assembly for exercise equipment as defined in claim 1 wherein: Groove (5) is opened on the side of pulley (2), and groove (5) penetrates pulley (2), so that pulley (2) is designed as hollow.

6. A low noise pulley assembly for exercise equipment as defined in claim 1 wherein: The fixed frame includes connecting seat (17), connecting seat (17) is fixed on the top of U-shaped frame (1), first connecting ring (18) is fixed on the top of connecting seat (17), second connecting ring (19) is connected on first connecting ring (18), mounting plate (20) is installed on second connecting ring (19), and mounting hole is opened on the corner of mounting plate (20).

7. A low noise pulley assembly for exercise equipment as defined in claim 6 wherein: Buffer rubber sleeve is wrapped on the surface of first connecting ring (18) and the surface of second connecting ring (19).

8. A low noise pulley assembly for exercise equipment as defined in claim 1 wherein: Limit seat (6) is arranged on the top in U-shaped frame (1), and the top of pulley (2) is placed in limit seat (6), and the both ends of limit seat (6) are detachably connected with U-shaped frame (1) through connecting piece (7).

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