A rotary auxiliary counterweight mechanism and an exercise machine

Abstract

This utility model discloses a rotary auxiliary weight mechanism and a fitness device. The rotary auxiliary weight mechanism includes a guide rod, an auxiliary weight sleeve, and a rotary connecting structure. The guide rod extends vertically and its top end is connected to the fitness device. The auxiliary weight sleeve is fitted onto the guide rod and can move vertically downward relative to the guide rod to adjust the weight of the fitness device. In the connected state, the rotary connecting structure is located at the top end of the guide rod and is used to connect the guide rod and the auxiliary weight sleeve. When the rotary connecting structure is rotated to the use state, the auxiliary weight sleeve falls to the weight assembly of the fitness device to adjust the overall load of the fitness device's weight. Because the rotary connecting structure has no other moving parts besides itself, during exercise, if you want to increase the force, rotate the rotary connecting structure so that the auxiliary weight sleeve falls down using gravity to achieve the added force, making it easy to adjust.

Description

Technical Field

[0001] This utility model relates to the field of fitness equipment technology, specifically a rotary auxiliary weight mechanism and fitness machine. Background Technology

[0002] Weights on fitness equipment are an indispensable part of fitness training, and their design and selection directly affect the training effect and safety. Weights should be selected based on individual height, weight, and strength level. Beginners are advised to start with lighter weights and gradually increase the weight to avoid injury.

[0003] Currently, the mainstream adjustment method is to adjust the load of the counterweight by adjusting the number of counterweight plates using a pin-type adjustment mechanism; however, the accuracy is limited to the minimum adjustment unit of 2.5KG, which cannot meet the needs of progressive loads.

[0004] Therefore, this application is hereby submitted. Summary of the Invention

[0005] To address one of the shortcomings of existing technologies, this utility model provides a rotary auxiliary counterweight mechanism and a fitness device.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A rotary auxiliary counterweight mechanism, comprising:

[0008] The guide rod extends vertically and its top end is connected to the fitness equipment;

[0009] An auxiliary weight sleeve, fitted onto a guide rod, is vertically movable relative to the guide rod to the bottom to adjust the weight of the fitness equipment.

[0010] The rotary connection structure, in the connected state, is located at the top of the guide rod and is used to connect the guide rod and the auxiliary counterweight sleeve; when the rotary connection structure is rotated to the use state, the auxiliary counterweight sleeve falls to the counterweight assembly of the fitness equipment to adjust the overall load of the fitness equipment's counterweight.

[0011] Preferably, the rotary connection structure includes:

[0012] The top cover is fixedly connected to the fitness equipment;

[0013] The middle cover is fitted onto the guide rod and is fixedly connected to the auxiliary counterweight sleeve; the middle cover and the top cover are detachably connected.

[0014] Preferably, the top cover, the middle cover, and the auxiliary counterweight sleeve are all provided with a connecting hole, and the guide rod passes through the connecting hole to connect the top cover, the middle cover, and the auxiliary counterweight sleeve.

[0015] Preferably, the top cover includes:

[0016] The top cover protrudes and is connected to the fitness device at its top.

[0017] A top cover connecting seat is provided at the bottom end of the top cover protrusion; multiple reinforcing ribs are provided between the top cover connecting seat and the top cover protrusion.

[0018] Preferably, the top cover is provided with a plurality of connecting grooves at intervals; the connecting groove includes a limiting part and a passing part;

[0019] The middle cover and the connecting groove are provided with multiple connecting structures; in the connected state, the middle cover and the top cover are connected through the connecting structure and the limiting part; when the middle cover is rotated to the connecting structure to the passage part, the middle cover and the top cover are disengaged, so that the auxiliary counterweight sleeve falls.

[0020] Preferably, the limiting part is provided with an upward limiting protrusion;

[0021] The connecting structure is provided with a transition groove corresponding to the limiting protrusion.

[0022] Preferably, the connection structure includes:

[0023] A connecting plate extends vertically and is fixedly connected at one end to the body of the middle cover;

[0024] The other end of the connecting plate is bent into a limiting plate; the connecting plate and the limiting plate are arranged in a U-shape.

[0025] Preferably, it also includes

[0026] Multiple fasteners spaced at intervals securely connect the middle cover to the auxiliary counterweight sleeve.

[0027] Preferred options also include:

[0028] A fastening connecting sleeve is fitted between the auxiliary counterweight sleeve and the guide rod, and is located below the auxiliary counterweight sleeve.

[0029] Embodiments of this application also provide a fitness device, comprising:

[0030] frame;

[0031] A counterweight assembly, mounted on the frame, is used to provide the load required for exercise;

[0032] At least one set of the above-mentioned rotary auxiliary counterweight mechanism is connected to the frame at its upper end, located above the counterweight assembly, and works with the counterweight assembly to adjust the overall load required for fitness.

[0033] Compared with existing technologies, it has the following beneficial effects:

[0034] (1) According to the application, at least one auxiliary weight set is set as needed, and a weight load is preset on the auxiliary weight set. The user can adjust a weight that is more suitable for himself according to his own needs to exercise. The auxiliary weight set can respond in time through its own weight, and the accuracy can be adjusted according to the auxiliary weight set to break through the minimum adjustment unit.

[0035] (2) This application uses a rotating connection structure and has no other moving parts except itself. If you want to increase the strength during exercise, rotate the rotating connection structure so that the auxiliary weight sleeve can fall down by gravity to increase the force, which is convenient for adjustment. Attached Figure Description

[0036] Figure 1 This is an exploded structural diagram of the rotary auxiliary counterweight mechanism according to an embodiment of this application;

[0037] Figure 2 This is a schematic diagram of the top cover structure of the rotary auxiliary counterweight mechanism according to an embodiment of this application;

[0038] Figure 3 for Figure 2 A magnified structural diagram of A in the middle;

[0039] Figure 4 This is a partial structural diagram of the rotating auxiliary counterweight mechanism used in the fitness equipment according to an embodiment of this application.

[0040] Figure 5 for Figure 4 A magnified structural diagram of B in the diagram;

[0041] Figure 6 This application provides a partial structural diagram of the initial state of the fitness device using a rotating auxiliary counterweight mechanism.

[0042] In the picture:

[0043] 1. Guide rod;

[0044] 2. Auxiliary counterweight sleeve;

[0045] 3. Top cover; 301. Top cover connecting seat; 302. Top cover protrusion; 303. Reinforcing rib; 304. Connecting groove; 341. Limiting part; 342. Passing part; 343. Limiting protrusion;

[0046] 4. Middle cover; 401. Connecting structure; 411. Connecting plate; 412. Limiting plate; 402. Transition groove;

[0047] 5. Fasteners;

[0048] 6. Rack;

[0049] 7. Counterweight components;

[0050] 8. Tighten the connecting sleeve. Detailed Implementation

[0051] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0052] Please see Figures 1-6 This application provides the following technical solutions:

[0053] This application provides embodiments that

[0054] A rotary auxiliary counterweight mechanism includes a guide rod 1, an auxiliary counterweight sleeve 2, and a rotary connection structure.

[0055] Guide rod 1 extends vertically and its top end is connected to the fitness machine; auxiliary counterweight sleeve 2 is fitted onto guide rod 1. The auxiliary counterweight sleeve 2 can move vertically downward relative to guide rod 1 to adjust the counterweight of the fitness machine; in the connected state, the rotary connection structure is set at the top end of guide rod 1 to connect guide rod 1 and auxiliary counterweight sleeve 2; when the rotary connection structure is rotated to the use state, the auxiliary counterweight sleeve 2 falls to the counterweight assembly of the fitness machine to adjust the overall load of the fitness machine's counterweight.

[0056] If you want to increase strength during exercise, you can rotate the rotating connection structure so that the auxiliary counterweight 2 falls down using gravity to increase the force.

[0057] This application allows for the setting of at least one auxiliary weight sleeve as needed, with a preset weight load. Users can adjust the weight to suit their own needs for exercise. The auxiliary weight sleeve's own weight enables timely response even without electricity, and the accuracy can be adjusted to break through the minimum adjustment unit.

[0058] This application utilizes a rotating connection structure with no other moving parts besides itself. During exercise, if you want to increase strength, rotate the rotating connection structure so that the auxiliary weight sleeve can fall down using gravity to increase force, which is convenient for adjustment.

[0059] Based on the above scheme, the rotary connection structure includes a top cover 3 and a middle cover 4.

[0060] The top cover 3 is fixedly connected to the fitness equipment; the middle cover 4 is sleeved on the guide rod 1 and fixedly connected to the auxiliary counterweight sleeve 2; the middle cover 4 and the top cover 3 are detachably connected.

[0061] Based on the above scheme, the top cover 3, the middle cover 4 and the auxiliary counterweight sleeve 2 are all provided with connecting holes, and the guide rod 1 passes through the connecting holes to connect the top cover 3, the middle cover 4 and the auxiliary counterweight sleeve 2.

[0062] Based on the above scheme, the top cover 3 includes a top cover protrusion 302 and a top cover connecting seat 301.

[0063] The top of the top cover protrusion 302 is connected to the fitness device; the top cover connecting seat 301 is located at the bottom of the top cover protrusion 302; a plurality of reinforcing ribs 303 are provided between the top cover connecting seat 301 and the top cover protrusion 302.

[0064] Based on the above scheme, the top cover 3 is provided with a plurality of connecting grooves 304 at intervals; the connecting groove 304 includes a limiting part 341 and a passing part 342;

[0065] The middle cover 4 and the connecting groove 304 are provided with a plurality of connecting structures 401; in the connected state, the middle cover 4 and the top cover 3 are connected by the connecting structure 401 and the limiting part 341; when the middle cover 4 is rotated to the connecting structure 401 to the passing part 342, the middle cover 4 and the top cover 3 are disengaged, so that the auxiliary counterweight sleeve 2 falls down.

[0066] Based on the above scheme, the limiting part 341 is provided with an upward limiting protrusion 343; the two sides of the limiting protrusion 343 smoothly transition upward; the connecting structure 401 is provided with a transition groove 402 corresponding to the limiting protrusion 343.

[0067] Based on the above scheme, the connection structure 401 includes a connection plate 411.

[0068] The connecting plate 411 extends vertically and is fixedly connected at one end to the body of the middle cover 4; the other end of the connecting plate 411 is bent into a limiting plate 412; the connecting plate 411 and the limiting plate 412 are arranged in a U-shape.

[0069] Based on the above scheme, it also includes multiple fasteners 5 spaced apart.

[0070] The middle cover 4 and the auxiliary counterweight sleeve 2 are fixedly connected by fastener 5.

[0071] Based on the above scheme, a fastening connecting sleeve 8 is also included.

[0072] The fastening connecting sleeve 8 is fitted between the auxiliary counterweight sleeve 2 and the guide rod 1, and is located below the auxiliary counterweight sleeve 2.

[0073] This application also provides a fitness device, including:

[0074] Rack 6;

[0075] The counterweight assembly 7 is disposed on the frame 6 and is used to provide the load required for fitness.

[0076] At least one set of the above-mentioned rotary auxiliary counterweight mechanism is connected to the frame at its upper end and located above the counterweight assembly 7, and works with the counterweight assembly to adjust the overall load required for fitness.

[0077] Specifically, first install the fastening connecting sleeve 8 in the auxiliary counterweight sleeve 2 to restrict the fit between the hole and the shaft, then connect the middle cover 4 to the auxiliary counterweight sleeve 2 with bolts, and then turn the top cover 3 to the left to lock it. There is a clear click sound when tightening.

[0078] In practice, the guide rod 1 can be equipped with a guide rod fixing seat with two small holes. Finally, the top cover 3 and the two small holes of the guide rod fixing seat above it are used for positioning to prevent the rotation from slipping or wearing. Then, bolts are used to connect it to the guide rod to complete the installation.

[0079] This application achieves weight adjustment through a rotating locking structure combined with its own weight; it can be placed once and has no other moving parts besides itself, allowing for blind operation and no energy dependence; it is gravity-driven, with human intervention playing a partial role, and locks in place upon placement, ensuring high reliability.

[0080] In the description of this application and its embodiments, it should be understood that the terms "top", "bottom", "height", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0081] In this application and its embodiments, unless otherwise expressly specified and limited, the terms "set," "install," "connect," "link," "fix," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0082] In this application and its embodiments, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0083] The foregoing disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described above. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0084] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0085] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A rotary auxiliary counterweight mechanism, characterized in that, include: Guide rod (1) extends vertically and is connected to the fitness equipment at its top; The auxiliary counterweight sleeve (2) is fitted onto the guide rod (1). The auxiliary counterweight sleeve (2) can move vertically downward relative to the guide rod (1) to adjust the counterweight of the fitness equipment. The rotary connection structure, in the connected state, is set at the top of the guide rod (1) to connect the guide rod (1) and the auxiliary counterweight sleeve (2); when the rotary connection structure is rotated to the use state, the auxiliary counterweight sleeve (2) falls to the counterweight assembly of the fitness machine to adjust the overall load of the fitness machine counterweight.

2. The rotary auxiliary counterweight mechanism as described in claim 1, characterized in that, The rotary connection structure includes: Top cover (3) is fixedly connected to the fitness equipment; The middle cover (4) is fitted onto the guide rod (1) and fixedly connected to the auxiliary counterweight sleeve (2); the middle cover (4) and the top cover (3) are detachably connected.

3. The rotary auxiliary counterweight mechanism as described in claim 2, characterized in that, The top cover (3), middle cover (4) and auxiliary counterweight sleeve (2) are all provided with connecting holes. The guide rod (1) passes through the connecting holes to connect the top cover (3), middle cover (4) and auxiliary counterweight sleeve (2).

4. The rotary auxiliary counterweight mechanism as described in claim 2, characterized in that, The top cover (3) includes: The top cover protrudes (302) and is connected to the fitness device at its top. A top cover connecting seat (301) is provided at the bottom end of the top cover protrusion (302); a plurality of reinforcing ribs (303) are provided between the top cover connecting seat (301) and the top cover protrusion (302).

5. The rotary auxiliary counterweight mechanism as described in claim 2, characterized in that, The top cover (3) is provided with a plurality of connecting grooves (304) spaced apart; the connecting groove (304) includes a limiting part (341) and a passing part (342). The middle cover (4) and the connecting groove (304) are provided with multiple connecting structures (401); in the connected state, the middle cover (4) and the top cover (3) are connected through the connecting structure (401) and the limiting part (341); when the middle cover (4) is rotated to the connecting structure (401) to the passing part (342), the middle cover (4) and the top cover (3) are disengaged so that the auxiliary counterweight sleeve (2) falls down.

6. The rotary auxiliary counterweight mechanism as described in claim 5, characterized in that, The limiting part (341) is provided with an upward limiting protrusion (343). The connecting structure (401) and the limiting protrusion (343) are provided with a transition groove (402).

7. The rotary auxiliary counterweight mechanism as described in claim 5, characterized in that, The connection structure (401) includes: The connecting plate (411) extends in the vertical direction and is fixedly connected at one end to the body of the middle cover (4); The other end of the connecting plate (411) is bent into a limiting plate (412); the connecting plate (411) and the limiting plate (412) are arranged in a U-shape.

8. The rotary auxiliary counterweight mechanism as described in claim 2, characterized in that, Also includes Multiple fasteners (5) spaced apart are used to fix the middle cover (4) and the auxiliary counterweight sleeve (2) together.

9. The rotary auxiliary counterweight mechanism as described in claim 1, characterized in that, Also includes: The fastening connecting sleeve (8) is fitted between the auxiliary counterweight sleeve (2) and the guide rod (1) and is located below the auxiliary counterweight sleeve (2).

10. A fitness device, characterized in that, include: Rack (6); A counterweight assembly (7) is provided on the frame (6) to provide the load required for fitness; At least one set of rotary auxiliary counterweight mechanisms as described in any one of claims 1-9, with the upper end connected to the frame and located above the counterweight assembly (7), and working with the counterweight assembly to adjust the overall load required for fitness.

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