Pulley block device and fitness equipment

By introducing connectors, locking blocks, and elastic elements into the pulley block design, the problem of inconvenient connection of external accessories to the pulley block of fitness equipment is solved, achieving simple operation and stable connection, and improving the versatility and user experience of fitness equipment.

CN224113183UActive Publication Date: 2026-04-14SHENZHEN SPEEDIANCE LIFE TECH LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN SPEEDIANCE LIFE TECH LTD
Filing Date
2025-04-10
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

The pulley system of existing fitness equipment lacks a convenient installation structure, which makes it inconvenient to connect external accessories, complicated to operate, and not conducive to diversified training.

Method used

A pulley block device is designed, comprising a mounting base, a pulley block mechanism, a locking block, and an elastic element. The device enables quick and secure connection of external accessories through the cooperation of the insertion port, the locking block, and the elastic element. It is equipped with a limit guide component and a locking component to simplify operation.

Benefits of technology

It achieves simple operation and stable connection of pulley block device, improves the versatility and training diversity of fitness equipment, reduces failure points and production costs, and enhances user experience and market competitiveness.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a pulley block device and fitness equipment, the pulley block device comprises a mounting seat and a pulley block mechanism, the pulley block mechanism comprises a fixed seat rotatably arranged on the mounting seat, the fixed seat is provided with an insertion opening for an external accessory to be inserted, the pulley block device further comprises a clamping block and an elastic piece, the clamping block is rotatably connected with the fixed seat, at least one side of the socket is provided with the clamping block, one end of the clamping block is an operation part, and the other end of the clamping block is a clamping part; and the elastic piece is in contact with the clamping block and the fixed seat so as to drive the clamping part to extend into the socket. According to the pulley block device, the insertion opening, the clamping block and the elastic piece are arranged on the fixing base, and the problem that an existing pulley block device is inconvenient to connect with external accessories is effectively solved. The structure is simple, operation is convenient, a user can quickly insert an external accessory into the insertion opening, stable connection is achieved through cooperation of the clamping block and the elastic piece, and the external accessory can be mounted and dismounted without complex operation.
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Description

Technical Field

[0001] This utility model relates to the field of fitness equipment technology, and in particular to pulley block devices and fitness equipment. Background Technology

[0002] In the fitness industry, some fitness equipment is equipped with pulley systems to allow for more exercises and enhance training effects. These pulley systems are typically installed on the gantry or footboard of the fitness equipment.

[0003] In the prior art, pulley block devices generally do not have a mounting structure for connecting external accessories (such as training handles). Even if a small number of pulley block devices have a mounting structure for connecting external accessories, the structure is relatively complex and not very convenient for users to operate. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a pulley block device with a simple structure and easy operation, and a fitness device with the pulley block device.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a pulley block device, including a mounting base and a pulley block mechanism. The pulley block mechanism includes a fixed base rotatably mounted on the mounting base. The fixed base is provided with a socket for inserting external accessories. It also includes a locking block and an elastic element. The locking block is rotatably connected to the fixed base. The locking block is provided on at least one side of the socket. One end of the locking block is an operating part, and the other end of the locking block is a locking part. The elastic element contacts the locking block and the fixed base to drive the locking part to extend into the socket.

[0006] Furthermore, the locking blocks are respectively provided on opposite sides of the socket.

[0007] Furthermore, the fixed base is provided with at least three pulleys, which are arranged in two rows, one above the other. The pulleys in the upper row are staggered with the pulleys in the lower row, and the insertion port is provided in the gap between the two pulleys in the upper row.

[0008] Furthermore, the top of the pulleys located in the lower row is positioned higher than the bottom of the pulleys located in the upper row.

[0009] Furthermore, a limiting guide component is provided on one side of the mounting base.

[0010] Furthermore, the mounting base is also provided with a locking assembly, which includes a locking rod, a limiting rod, a sleeve, an operating handle, and a reset member. The sleeve is mounted on the mounting base, the locking rod passes through the sleeve and the mounting base, the locking rod is provided with an operating handle and a limiting rod, the sleeve is provided with a notch, and the reset member contacts the locking rod and the sleeve or the mounting base so that the limiting rod abuts against the guide slope formed at the notch. The operating handle is exposed on the other side of the mounting base.

[0011] Furthermore, the mounting base is provided with a mounting through hole, and at least a portion of the sleeve is located within the mounting through hole.

[0012] Furthermore, the limiting guide assembly includes at least three rollers, which are arranged in two rows, one above the other.

[0013] In order to solve the above-mentioned technical problems, the present invention also adopts the following technical solution: fitness equipment, including the above-mentioned pulley block device.

[0014] Furthermore, it also includes a connected main body and a pedal. The pulley assembly is located on the side of the pedal. The main body is connected to a gantry. The gantry is provided with at least one first fixed pulley. The main body or the pedal is provided with a second fixed pulley in the area near the main body. The main body is provided with a motor. A pull rope is wound around the rotor of the motor. One end of the pull rope passes sequentially around the first fixed pulley and the second fixed pulley, passes through the pulley assembly mechanism, and is fixedly connected to the pedal. The pull rope has at least one exit point, which is located between the first fixed pulley and the pulley assembly mechanism.

[0015] The beneficial effects of this utility model are as follows: This pulley block device effectively solves the problem of inconvenient connection of external accessories in existing pulley block devices by setting a socket, a locking block, and an elastic element on the fixed base. Its simple structure and convenient operation allow users to quickly insert external accessories into the socket and achieve a stable connection through the cooperation of the locking block and the elastic element. Installation and disassembly of external accessories can be completed without complicated operations, significantly improving the versatility of fitness equipment and the diversity of training. At the same time, this design also reduces potential failure points caused by complex installation structures, lowers production costs and maintenance difficulty, and enhances the product's market competitiveness and user experience. Attached Figure Description

[0016] Figure 1 A structural diagram of part of the fitness equipment;

[0017] Figure 2 This is a schematic diagram of the pulley block device;

[0018] Figure 3 This is a schematic diagram of the pulley block device from another perspective.

[0019] Figure 4 This is a cross-sectional view of the pulley block assembly;

[0020] Figure 5 This is a cross-sectional view of the pulley block assembly from another perspective.

[0021] Figure 6 This is a schematic diagram of the locking component in a pulley block device.

[0022] Label Explanation:

[0023] 1. Pulley block assembly; 11. Mounting base; 111. Limiting and guiding assembly; 112. Mounting through hole; 12. Pulley block mechanism; 121. Fixed base; 122. Insertion port; 123. Locking block; 1231. Operating part; 1232. Locking part; 124. Elastic element; 125. Pulley; 13. Locking assembly; 131. Locking rod; 132. Limiting rod; 133. Sleeve; 1331. Guide slope; 134. Operating handle; 135. Reset component;

[0024] 2. Electric motor;

[0025] 3. Pull rope; 31. Line exit point;

[0026] 41. First fixed pulley; 42. Second fixed pulley;

[0027] 5. Pedal. Detailed Implementation

[0028] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0029] Please refer to Figures 1 to 6 The pulley block device 1 includes a mounting base 11 and a pulley block mechanism 12. The pulley block mechanism 12 includes a fixed base 121 rotatably mounted on the mounting base 11. The fixed base 121 has a socket 122 for inserting external accessories. It also includes a locking block 123 and an elastic element 124. The locking block 123 is rotatably connected to the fixed base 121. The locking block 123 is provided on at least one side of the socket 122. One end of the locking block 123 is an operating part 1231, and the other end of the locking block 123 is a locking part 1232. The elastic element 124 contacts the locking block 123 and the fixed base 121 to drive the locking part 1232 into the socket 122.

[0030] As can be seen from the above description, the beneficial effects of this utility model are as follows: This pulley block device 1, by providing a socket 122, a locking block 123, and an elastic element 124 on the fixed base 121, effectively solves the problem of inconvenient connection of external accessories in existing pulley block devices 1. Its structure is simple and easy to operate. Users can quickly insert external accessories into the socket 122, and achieve a stable connection through the cooperation of the locking block 123 and the elastic element 124. The installation and disassembly of external accessories can be completed without complicated operations, significantly improving the versatility of fitness equipment and the diversity of training. At the same time, this design also reduces potential failure points caused by complex installation structures, lowers production costs and maintenance difficulty, and enhances the product's market competitiveness and user experience.

[0031] Furthermore, the locking blocks 123 are respectively provided on opposite sides of the socket 122.

[0032] As described above, the relatively set card blocks 123 can not only more stably fix the external accessories, but also allow the user to unlock both card blocks 123 at the same time with one hand, making it convenient for the user to operate.

[0033] Furthermore, the fixing base 121 is provided with at least three pulleys 125, which are arranged in two rows, one above the other. The pulleys 125 in the upper row are staggered with the pulleys 125 in the lower row, and the insertion port 122 is provided in the gap between the two pulleys 125 in the upper row.

[0034] Furthermore, the top of the pulley 125 located in the lower row is positioned higher than the bottom of the pulley 125 located in the upper row.

[0035] As can be seen from the above description, the components of the pulley block mechanism 12 are arranged in a reasonable manner, which is conducive to the miniaturization of the pulley block device 1.

[0036] Furthermore, a limiting guide component 111 is provided on one side of the mounting base 11.

[0037] As can be seen from the above description, the limiting guide assembly 111 and the guide structure on the external structural components (such as the pedal 5, the gantry, etc.) restrict the degree of freedom of the mounting base 11, ensuring that the pulley block device 1 can only slide in one direction along the external structural components.

[0038] Furthermore, the mounting base 11 is also provided with a locking assembly 13, which includes a locking rod 131, a limiting rod 132, a sleeve 133, an operating handle 134, and a reset member 135. The sleeve 133 is mounted on the mounting base 11, and the locking rod 131 passes through the sleeve 133 and the mounting base 11. The locking rod 131 is provided with an operating handle 134 and a limiting rod 132. The sleeve 133 is provided with a notch. The reset member 135 contacts the locking rod 131 and the sleeve 133 or the mounting base 11 so that the limiting rod 132 abuts against the guide slope 1331 formed at the notch. The operating handle 134 is exposed on the other side of the mounting base 11.

[0039] As described above, the user can unlock and lock the locking component 13 by turning the operating handle 134. The user operation is very convenient. Moreover, the user can clearly see the current status of the pulley block device 1 by the orientation of the operating handle 134, which reduces user misoperation and greatly facilitates user use.

[0040] Furthermore, the mounting base 11 is provided with a mounting through hole 112, and at least a portion of the sleeve 133 is located in the mounting through hole 112.

[0041] As can be seen from the above description, at least a portion of the sleeve 133 is located in the mounting through hole 112, which can reduce the space occupied by the pulley block device 1.

[0042] Furthermore, the limiting guide component 111 includes at least three rollers, which are arranged in two rows, one above the other.

[0043] As can be seen from the above description, using rollers as limiting and guiding components 111 allows the pulley block device 1 to slide more smoothly in one direction of the external structure.

[0044] Fitness equipment, including the aforementioned pulley block device 1.

[0045] Furthermore, it also includes a connected main body and pedal 5. The pulley group device 1 is located on the side of the pedal 5. The main body is connected to a gantry. The gantry is provided with at least one first fixed pulley 41. The main body or the pedal 5 is provided with a second fixed pulley 42 in the area near the main body. The main body is provided with a motor 2. A pull rope 3 is wound on the rotor of the motor 2. One end of the pull rope 3 passes sequentially around the first fixed pulley 41 and the second fixed pulley 42 and passes through the pulley group mechanism 12 before being fixedly connected to the pedal 5. The pull rope 3 has at least one exit point 31, which is located between the first fixed pulley 41 and the pulley group mechanism 12.

[0046] As described above, the fixing point of the pull rope 3 has moved from the upper end of the gantry to the pedal 5, and the exit point 31 is located between the first fixed pulley 41 and the pulley block mechanism 12. When the pull rope 3 is pulled from the exit point 31, the area of ​​the pull rope 3 within the pulley block mechanism 12 is not pulled. Even if the area of ​​the pull rope 3 within the pulley block mechanism 12 is bent, it will not increase the resistance. While ensuring the miniaturization of the pulley block device 1, it can also ensure the accuracy of the resistance provided by the pull rope 3.

[0047] Please refer to Figures 1 to 6 The first embodiment of this utility model is: a fitness device, including a pulley assembly 1, a main body and a pedal 5. The main body and the pedal 5 are connected. The pulley assembly 1 is located on the side of the pedal 5. The main body is equipped with a motor 2, and a pull rope 3 is wound on the rotor of the motor 2.

[0048] The pulley block device 1 includes a mounting base 11, a pulley block mechanism 12, a locking block 123, and an elastic element 124. The pulley block mechanism 12 includes a fixed base 121 rotatably mounted on the mounting base 11. The fixed base 121 has a socket 122 for inserting external accessories. The locking block 123 is rotatably connected to the fixed base 121. The locking block 123 is provided on at least one side of the socket 122. One end of the locking block 123 is an operating part 1231, which is exposed outside the fixed base 121. The other end of the locking block 123 is a locking part 1232. The elastic element 124 contacts the locking block 123 and the fixed base 121 to drive the locking part 1232 into the socket 122.

[0049] Preferably, the locking blocks 123 are provided on opposite sides of the socket 122. In one or more embodiments, the outline of the locking blocks 123 is approximately L-shaped.

[0050] The fixed base 121 is provided with at least three pulleys 125, which are arranged in two rows, one above the other. The pulleys 125 in the upper row are staggered with the pulleys 125 in the lower row. The socket 122 is provided in the gap between the two pulleys 125 in the upper row.

[0051] The top of the pulley 125 located in the lower row is set higher than the bottom of the pulley 125 located in the upper row, that is, the area where the pull rope 3 is located in the pulley block mechanism 12 forms a bend.

[0052] A limiting guide component 111 is provided on one side of the mounting base 11. In one or more embodiments, the limiting guide component 111 includes a limiting slider. In this embodiment, the limiting guide component 111 includes at least three rollers arranged in two rows. Optionally, the rollers are concave rollers. The side of the pedal 5 has two linear guide rails spaced vertically apart. The rollers in the upper row contact the upper linear guide rail but not the lower linear guide rail, and the rollers in the lower row contact the lower linear guide rail but not the upper linear guide rail. Of course, in other embodiments, the rollers can also be convex rollers. In this case, a corresponding linear groove can be provided on the slide plate.

[0053] The mounting base 11 is also provided with a locking assembly 13, which includes a locking rod 131, a limiting rod 132, a sleeve 133, an operating handle 134, and a reset member 135. The sleeve 133 is mounted on the mounting base 11. The locking rod 131 passes through the sleeve 133 and the mounting base 11 and is rotatable and slidable relative to the mounting base 11. The pedal 5 has a locking hole that mates with the end of the locking rod 131. The locking rod 131 is provided with an operating handle 134 and a limiting rod 132. The sleeve 133 is provided with a notch. The reset member 135 contacts the locking rod 131 and the sleeve 133 or the mounting base 11 so that the limiting rod 132 abuts against the guide slope 1331 formed at the notch. The operating handle 134 is exposed on the other side of the mounting base 11.

[0054] Optionally, the mounting base 11 is provided with a mounting through hole 112, and at least a portion of the sleeve 133 is located in the mounting through hole 112.

[0055] In the fitness equipment of this embodiment, the main body is connected to a gantry, and the gantry is provided with at least one first fixed pulley 41. The main body or the pedal 5 is provided with a second fixed pulley 42 in the area near the main body. One end of the pull rope 3 passes sequentially around the first fixed pulley 41 and the second fixed pulley 42 and passes through the pulley group mechanism 12 before being fixedly connected to the pedal 5. The pull rope 3 has at least one exit point 31, which is located between the first fixed pulley 41 and the pulley group mechanism 12. Users can use the exit point 31 to connect external exercise accessories.

[0056] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A pulley block device, characterized in that, The device includes a mounting base and a pulley mechanism. The pulley mechanism includes a fixed base rotatably mounted on the mounting base, the fixed base having a socket for inserting external accessories, a locking block, and an elastic element. The locking block is rotatably connected to the fixed base. The locking block is located on at least one side of the socket. One end of the locking block is an operating part, and the other end is a locking part. The elastic element contacts the locking block and the fixed base to drive the locking part into the socket.

2. The pulley block device according to claim 1, characterized in that, The locking blocks are respectively provided on both sides of the socket.

3. The pulley block device according to claim 1, characterized in that, The mounting base is provided with at least three pulleys, which are arranged in two rows, one above the other. The pulleys in the upper row are staggered with the pulleys in the lower row, and the insertion port is provided in the gap between the two pulleys in the upper row.

4. The pulley block device according to claim 3, characterized in that, The top of the pulleys located in the lower row is positioned higher than the bottom of the pulleys located in the upper row.

5. The pulley block device according to claim 1, characterized in that, A limiting guide component is provided on one side of the mounting base.

6. The pulley block device according to claim 5, characterized in that, The mounting base is also provided with a locking assembly, which includes a locking rod, a limiting rod, a sleeve, an operating handle, and a reset member. The sleeve is mounted on the mounting base, and the locking rod passes through the sleeve and the mounting base. The locking rod is provided with an operating handle and a limiting rod. The sleeve is provided with a notch. The reset member contacts the locking rod and the sleeve or the mounting base so that the limiting rod abuts against the guide slope formed at the notch. The operating handle is exposed on the other side of the mounting base.

7. The pulley block device according to claim 6, characterized in that, The mounting base is provided with a mounting through hole, and at least a portion of the sleeve is located in the mounting through hole.

8. The pulley block device according to claim 5, characterized in that, The limiting guide assembly includes at least three rollers, which are arranged in two rows, one above the other.

9. Fitness equipment, characterized in that, Includes the pulley block device according to any one of claims 1-8.

10. The fitness equipment according to claim 9, characterized in that, It also includes a main body and a pedal connected together. The pulley assembly is located on the side of the pedal. The main body is connected to a gantry. The gantry is provided with at least one first fixed pulley. The main body or the pedal is provided with a second fixed pulley in the area near the main body. The main body is provided with a motor. A pull rope is wound around the rotor of the motor. One end of the pull rope passes sequentially around the first fixed pulley and the second fixed pulley and passes through the pulley assembly mechanism before being fixedly connected to the pedal. The pull rope has at least one exit point, which is located between the first fixed pulley and the pulley assembly mechanism.