Counterweight mechanism of shoulder lifting trainer
By replacing the counterweight box with a counterweight arm in the shoulder lift trainer, and by optimizing force changes through the design of steel wire rope and limit blocks, the problems of large footprint and high cost of existing trainers are solved, achieving higher space utilization and cost savings.
Patent Information
- Application Number
- CN202422400950.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2034-09-29
AI Technical Summary
The existing shoulder lift trainer's weight box occupies a large area and costs a lot, resulting in low space utilization and increased costs in the gym.
The existing counterweight box is replaced with a counterweight arm. The cam is driven to rotate by the motion arm, and the counterweight arm is connected by a steel wire rope. The counterweight plates are interchangeable. The design of limit blocks and safety pins optimizes force changes.
This reduces the footprint of the training equipment, lowers costs, and improves the space utilization of the gym.
Smart Images
Figure CN223831675U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fitness equipment, and more specifically, to a counterweight mechanism for a shoulder lifting trainer. Background Technology
[0002] In today's context of promoting exercise and fitness among the general public, many people go to the gym to work out. As people's quality of life improves, more and more people are paying attention to exercise. However, gym space is limited, and the number of equipment that can be installed is also limited, leading to a shortage of equipment.
[0003] Existing shoulder lift trainers on the market all come with corresponding insert-type weight boxes, which greatly increases the footprint of the trainers and reduces the space utilization of the gym. Furthermore, the cost of the weight boxes is expensive, which increases the gym's costs. Summary of the Invention
[0004] The technical problem to be solved by this utility model is to provide a counterweight mechanism for a shoulder lifting trainer that can replace the existing counterweight box, reduce the footprint of the trainer, and save costs.
[0005] The technical solution adopted by this utility model to solve its technical problem is: to construct a counterweight mechanism for a shoulder lifting trainer, including a main frame, a moving arm and a cam. When the moving arm rotates, it drives the cam to rotate. It also includes a gravity arm. One end of the gravity arm is rotatably mounted on the main frame, and the other end of the gravity arm is provided with a barbell rod for mounting counterweight plates. The cam is connected to the middle of the gravity arm through a steel wire rope.
[0006] According to the above scheme, the gravity arm is provided with a connecting post for connecting the steel wire rope.
[0007] According to the above scheme, the main frame is provided with a limiting block, which is located below the gravity arm.
[0008] According to the above scheme, a safety pin is provided at the end of the barbell bar.
[0009] The counterweight mechanism of the shoulder lifting trainer of this utility model has the following beneficial effects:
[0010] 1. When using the shoulder lifting trainer, push the movement arm to drive the cam to rotate, which in turn drives the counterweight arm to rotate through the steel wire rope. This utility model replaces the pulley and cam structure of the existing counterweight box with the counterweight arm, thereby optimizing the force change and making it more in line with the human movement law. At the same time, counterweight plates can be directly added to the counterweight arm, and the counterweight plates are universal and interchangeable, saving costs.
[0011] 2. This utility model occupies less space and is cheaper, allowing gyms to accommodate more equipment and improving space utilization. Attached Figure Description
[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:
[0013] Figure 1 This is a front view of the counterweight mechanism of the shoulder lifting trainer of this utility model;
[0014] Figure 2 This is a side view of the counterweight mechanism of the shoulder lifting trainer of this utility model. Detailed Implementation
[0015] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.
[0016] like Figure 1-2 As shown, the counterweight mechanism of the shoulder lifting trainer of this utility model includes a main frame 1, a motion arm 5, a cam 4, and a gravity arm 2.
[0017] When the moving arm 5 rotates, it drives the cam 4 to rotate. One end of the gravity arm 2 is rotatably mounted on the main frame 1, and the other end of the gravity arm 2 is equipped with a barbell rod 6 for mounting counterweight plates. The cam 4 is connected to the middle of the gravity arm 2 via a steel wire rope 3. When the shoulder lift trainer is in use, the moving arm 5 is pushed, which drives the cam 4 to rotate, thereby driving the counterweight arm to rotate via the steel wire rope 3. This utility model optimizes the force change by replacing the existing counterweight box with a counterweight arm, making it more in line with the laws of human movement. At the same time, counterweight plates can be directly added to the counterweight arm, and the counterweight plates are universal and interchangeable, saving costs. Apart from the counterweight mechanism, the other structures of the shoulder lift trainer are the same as those in the prior art, and will not be described in detail here.
[0018] Preferably, the gravity arm 2 is provided with a connecting post for connecting the wire rope 3, and the end of the wire rope 3 is fixed on the connecting post.
[0019] Preferably, the main frame 1 is equipped with a limiting block 7, which is located below the gravity arm 2. When the trainer is not in use, the gravity arm 2 rests on the limiting block 7 to ensure safety.
[0020] Preferably, the end of the barbell bar 6 is provided with a safety pin 8 to prevent the counterweight from slipping off.
[0021] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present invention.
Claims
1. A counterweight mechanism for a shoulder lifting trainer, comprising a main frame, a moving arm, and a cam, wherein the moving arm rotates to drive the cam to rotate, characterized in that, It also includes a gravity arm, one end of which is rotatably mounted on the main frame, and the other end of which is provided with a barbell rod for mounting counterweight plates. The cam is connected to the middle of the gravity arm via a steel wire rope.
2. The counterweight mechanism of the shoulder lifting trainer according to claim 1, characterized in that, The gravity arm is equipped with a connecting post for connecting the steel wire rope.
3. The counterweight mechanism of the shoulder lifting trainer according to claim 1, characterized in that, The main frame is equipped with a limiting block, which is located below the gravity arm.
4. The counterweight mechanism of the shoulder lifting trainer according to claim 1, characterized in that, The barbell bar is equipped with a safety pin at its end.