Driving device of strength game lifting frame and strength game lifting frame

Abstract

The utility model provides a driving device of a power match lifting frame. The driving device comprises a base, a reversing piece and an operating piece. The base is rotationally connected with a stand column of the strength racing frame, one end of the reversing piece is in linkage fit with the operating piece, and the other end of the reversing piece is fixed to the side face of the stand column. The reversing piece is used for reversing rotation of the operating piece in the axial direction into translation of the reversing piece in the axial direction so as to drive the stand column to rotate relative to the base to adjust the inclination angle of the stand column. The utility model further provides a power match lifting frame which comprises two sets of driving devices.

Description

Technical Field

[0001] This utility model relates to fitness equipment, and more particularly to a powerlifting competition frame. Background Technology

[0002] Powerlifting competitions require athletes to maintain a stable and safe starting position during bench press, and the comfort and safety of the starting position are highly dependent on the angle of the rack posts.

[0003] In competitions certified by the International Powerlifting Federation, the frame often needs to support a weight of over 400 kilograms, which places higher demands on the structural stability, ease of operation, and adjustment accuracy of the upright angle adjustment system.

[0004] Currently, the common methods for adjusting the upright angle of racing frames on the market are as follows:

[0005] Using levers or manually moving the upright and tightening with nuts is cumbersome; furthermore, this adjustment method only allows adjustment between a few fixed positions, unable to stop at the intermediate angle. Common positions are 0° and 7.5°, failing to meet the needs of different users. Furthermore, the adjustment process is prone to wobbling, posing a risk of the barbell slipping. Using nuts for tightening is inefficient, time-consuming, and disrupts the competition rhythm. Utility Model Content

[0006] The main technical problem to be solved by this utility model is to provide a driving device for a powerlifting frame that can quickly adjust the tilt angle of the frame uprights with one hand, and has the characteristics of accurate positioning, safety and reliability, and smooth adjustment.

[0007] To solve the above-mentioned technical problems, this utility model provides a driving device for a powerlifting competition frame, including: a base, a reversing component, and an operating component;

[0008] The base is rotatably connected to the upright of the powerlifting frame. One end of the reversing member is linked to the operating member, and the other end of the reversing member is fixed to the side of the upright. The reversing member is used to change the rotation of the operating member around the axial direction to the translation of the reversing member along the axial direction, so as to drive the upright to rotate relative to the base and adjust the tilt angle of the upright.

[0009] In a preferred embodiment: the reversing member includes a screw with trapezoidal threads and a nut, the operating member is fixedly connected to one end of the screw, and the nut is sleeved on the screw.

[0010] In a preferred embodiment: the nut and the screw are connected by a trapezoidal thread, which has a one-way self-locking function.

[0011] In a preferred embodiment, the system further includes a bearing seat fixed to the base, a bearing disposed within the bearing seat, and the screw passing through the bearing.

[0012] In a preferred embodiment: the operating element is a crank.

[0013] In a preferred embodiment: the nut is connected to a top abutment block, one side of the top abutment block has an opening, the nut is placed in the opening and connected to the side wall of the opening, and the other side of the top abutment block is fixed to the column.

[0014] In a preferred embodiment: one end of the screw is a hexagonal connector, and the handle is provided with an internal hexagonal recess that cooperates with and is fixed to the hexagonal connector.

[0015] This utility model also provides a powerlifting competition frame, including two sets of drive devices as described above.

[0016] In a preferred embodiment: each set of drive devices drives one column.

[0017] Compared with the prior art, the technical solution of this utility model has the following beneficial effects:

[0018] This invention provides a drive device for a powerlifting frame. By cranking a handle, the user can move a nut along the axial direction of a screw. During this movement, the nut can push or pull the upright column, causing it to rotate relative to the base, thereby adjusting the column's tilt angle. Furthermore, utilizing the self-locking and unidirectional transmission characteristics of the trapezoidal thread, even under a 400kg load, the upright column can remain stably stationary at any position during adjustment, achieving stepless adjustment to suit the needs of different users and better ensuring safety during training and competition. Attached Figure Description

[0019] Figure 1 This is a perspective view of the powerlifting frame in a preferred embodiment of the present invention;

[0020] Figure 2 for Figure 1 A magnified view of a portion of the image;

[0021] Figure 3 This is an exploded view of the driving device in a preferred embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the drive device mounted on the base in a preferred embodiment of the present invention. Detailed Implementation

[0023] To make the technical solution and features of this utility model clearer, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific examples. It should be understood that these examples are only for illustrating this utility model and are not intended to limit the scope of this utility model. After reading this utility model, any modifications of this utility model by those skilled in the art in various equivalent forms fall within the scope defined by the appended claims.

[0024] refer to Figures 1-4 This embodiment provides a powerlifting frame, including two sets of drive devices, each set of drive devices corresponding to drive one column 1, thereby enabling the two columns 1 to rotate in directions that are closer to or further away from each other, thereby adjusting the tilt angle of the two columns 1.

[0025] The aforementioned driving device includes: a base 2, a reversing component, and an operating component 3; the base 2 is rotatably connected to the upright 1 of the powerlifting frame, one end of the reversing component is linked to the operating component 3, and the other end of the reversing component is fixed to the side of the upright 1; the reversing component is used to change the rotation of the operating component 3 around the axial direction to the translation of the reversing component along the axial direction, so as to drive the upright 1 to rotate relative to the base 2 and adjust the tilt angle of the upright 1.

[0026] In this embodiment, the reversing component includes a screw 4 with trapezoidal threads (the threads are not shown in the figures) and a nut 5. The operating component 3 is fixedly connected to one end of the screw 4, and the nut 5 is sleeved on the screw 4. To ensure stable rotation of the screw 4, this embodiment also includes a bearing 6, which is fixed to the base 2. A bearing 7 is disposed inside the bearing 6, and the screw 4 passes through the bearing 7.

[0027] In addition, the operating component 3 is a crank handle. To connect the crank handle and the screw 4 for transmission, one end of the screw 4 is a hexagonal connector, and the crank handle is provided with an internal hexagonal recess that mates with and is fixed to the hexagonal connector.

[0028] To allow the nut 5 to push or pull the column 1 to rotate, the nut 5 is connected to a top abutment block 8. One side of the top abutment block 8 has an opening, and the nut 5 is placed in the opening and connected to the side wall of the opening. The other side of the top abutment block 8 is fixed to the column 1. In this embodiment, the top abutment block and the column 1 are fixed by welding.

[0029] The drive mechanism of the aforementioned powerlifting frame allows the user to move the nut 5 along the axial direction of the screw 4 by cranking the handle. During this movement, the nut 5 pushes or pulls the upright 1, causing it to rotate relative to the base 2, thus adjusting the tilt angle of the upright 1. Furthermore, utilizing the self-locking and unidirectional transmission characteristics of the trapezoidal thread, even under a 400kg load, the upright 1 can remain stably stationary at any position during adjustment, achieving stepless adjustment to suit the needs of different users and better ensuring safety during training and competition.

[0030] The above is only one specific embodiment of the present utility model, but the design concept of the present utility model is not limited thereto. Any non-substantial modifications made to the present utility model using this concept shall be deemed as an infringement of the protection scope of the present utility model.

Claims

1. A drive device for a powerlifting frame, characterized in that... include: Base, commutator, operating components; The base is rotatably connected to the upright of the powerlifting frame. One end of the reversing member is linked to the operating member, and the other end of the reversing member is fixed to the side of the upright. The reversing member is used to change the rotation of the operating member around the axial direction to the translation of the reversing member along the axial direction, so as to drive the upright to rotate relative to the base and adjust the tilt angle of the upright.

2. The driving device for a powerlifting competition frame according to claim 1, characterized in that: The reversing component includes a screw with trapezoidal threads and a nut. The operating component is fixedly connected to one end of the screw, and the nut is sleeved on the screw.

3. The driving device for a powerlifting competition frame according to claim 2, characterized in that: The nut and screw are connected by a trapezoidal thread, which has a one-way self-locking function.

4. The driving device for a powerlifting competition frame according to claim 2, characterized in that: It also includes a bearing seat, which is fixed on the base, and a bearing is installed inside the bearing seat, through which the screw passes.

5. The driving device for a powerlifting competition frame according to claim 4, characterized in that: The operating component is a crank handle.

6. The driving device for a powerlifting competition frame according to claim 2, characterized in that: The nut is connected to a top abutment block, one side of which has an opening. The nut is placed in the opening and connected to the side wall of the opening. The other side of the top abutment block is fixed to the column.

7. The driving device for a powerlifting competition frame according to claim 5, characterized in that: One end of the screw is a hexagonal connector, and the crank handle is provided with an internal hexagonal recess that cooperates with and is fixed to the hexagonal connector.

8. A powerlifting frame, characterized in that... It includes the drive device according to any one of claims 1-7.

9. A powerlifting competition frame according to claim 8, characterized in that: Each set of drive units drives one column.

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