A hanging piece type rear deltoid trainer

Abstract

The utility model discloses a kind of hanging piece type rear deltoid training devices, including counterweight frame, top chest mechanism being obliquely installed in the front side of the counterweight frame, motion arm and counterweight arm being installed on the counterweight frame and being symmetric to the top chest mechanism arrangement, the counterweight arm is rotatably installed in the outside of the motion arm, simultaneously, still be rotatably connected between the counterweight arm and the counterweight frame by a connecting rod.The counterweight mechanism is based on ergonomics principle and sports biomechanics fixed motion track, adopts the linkage of motion arm and counterweight arm using multi-connecting rod transmission mode, compared with the volume of traditional deltoid training equipment is smaller, can effectively save floor space.

Description

Technical Field

[0001] This utility model relates to the field of fitness equipment technology, and in particular to a plate-type posterior deltoid muscle trainer. Background Technology

[0002] Currently, commercially available posterior deltoid training equipment mainly falls into two technical categories: plate-type weight machines and free weight training equipment. Among them, plate-type machines require the integration of multiple sets of weight plates and transmission structures, resulting in a generally large footprint per machine, significantly increasing the space operation costs of commercial gyms. While free weight equipment such as dumbbells and barbells have the advantage of flexibility, their open movement trajectory makes it difficult to fix the movement, leading to insufficient activation of the target muscle groups. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model proposes a plate-type rear deltoid muscle trainer. The counterweight mechanism is based on ergonomic principles and sports biomechanics to fix the movement trajectory. It uses a multi-link transmission method to achieve linkage between the exercise arm and the counterweight arm. Compared with traditional deltoid muscle training equipment, it is smaller in size and can effectively save space.

[0004] A plate-type posterior deltoid muscle trainer includes a weight frame, a chest-supporting mechanism obliquely mounted on the front side of the weight frame, a movement arm and a weight arm mounted on the weight frame and symmetrically arranged with respect to the chest-supporting mechanism, the weight arm being rotatably mounted on the outside of the movement arm, and the weight arm being rotatably connected to the weight frame via a connecting rod.

[0005] As a preferred embodiment of the above technical solution, the motion arm adopts a two-section mechanism, including a rotating arm and a handheld rotating arm. One end of the rotating arm is connected to the counterweight frame through a rotating shaft joint, and the other end is hinged to the handheld rotating arm and can be angle-locked.

[0006] As a preferred embodiment of the above technical solution, the counterweight arm is rotatably connected to the rotating arm via a rotating shaft joint.

[0007] As a preferred embodiment of the above technical solution, the counterweight arm and the counterweight frame are respectively welded with a long lug plate and a short lug plate that are rotatably connected to the connecting rod.

[0008] As a preferred embodiment of the above technical solution, a positioning rod for mounting the chest support mechanism is vertically installed on the counterweight frame, and the chest support mechanism can be slidably adjusted along the positioning rod.

[0009] As a preferred embodiment of the above technical solution, a counterweight is fixed to the top of the rotating arm. The counterweight is set at a certain angle to the bell hanger on the counterweight arm. The counterweight is located on the other side of the rotating shaft joint relative to the counterweight arm and rotates synchronously with the counterweight arm.

[0010] As a preferred embodiment of the above technical solution, the counterweight frame is provided with an elastic buffer pad at the connection between the rotating arm and the handheld rotating arm.

[0011] The beneficial effects of this utility model are as follows: It adopts a multi-link transmission method to realize the linkage between the exercise arm and the counterweight arm, which is smaller in size than traditional deltoid training equipment and can effectively save space.

[0012] The chest support mechanism can adaptively adjust its height to meet the exercise needs of more than 90% of people of different heights. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the present invention. Figure One .

[0014] Figure 2 This is a schematic diagram of the structure of the present invention. Figure Two .

[0015] The attached diagram is labeled as follows: 1- counterweight frame, 2-chest support mechanism, 3-movement arm, 301-rotating arm, 302-handheld rotating arm, 4-counterweight arm, 5-connecting rod, 6-rotation axis joint one, 7-rotation axis joint two, 8-long ear plate, 9-short ear plate, 10-positioning rod, 11-balance counterweight block, 12-elastic buffer pad. Detailed Implementation

[0016] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0017] like Figure 1 , Figure 2 The illustrated plate-type posterior deltoid muscle trainer includes a weight frame 1, a chest-supporting mechanism 2 inclinedly mounted on the front side of the weight frame 1, a movement arm 3 mounted on the weight frame 1 and symmetrically arranged with respect to the chest-supporting mechanism 2, and a weight arm 4. The weight arm 4 is rotatably mounted on the outside of the movement arm 3. At the same time, the weight arm 4 and the weight frame 1 are rotatably connected by a connecting rod 5.

[0018] In this embodiment, the motion arm 3 adopts a two-section mechanism, including a rotating arm 301 and a handheld rotating arm 302. One end of the rotating arm 301 is connected to the counterweight frame 1 through a rotating shaft joint 6, and the other end is hinged to the handheld rotating arm 302 and can be angle locked.

[0019] In this embodiment, the counterweight arm 4 is rotatably connected to the rotating arm 301 via a rotating shaft joint 7.

[0020] In this embodiment, the counterweight arm 4 and the counterweight frame 1 are respectively welded with a long ear plate 8 and a short ear plate 9 that are rotatably connected to the connecting rod 5.

[0021] In this embodiment, a positioning rod 10 for mounting the chest support mechanism 2 is vertically installed on the counterweight frame 1, and the chest support mechanism 2 can slide and adjust along the positioning rod 10.

[0022] In this embodiment, a counterweight 11 is fixed to the top of the rotating arm 301. The counterweight 11 is set at a certain angle to the bell hanger on the counterweight arm 4. The counterweight 11 is located on the other side of the rotating shaft joint 6 relative to the counterweight arm 4 and rotates synchronously with the counterweight arm 4.

[0023] In this embodiment, the counterweight frame 1 is provided with an elastic buffer pad 12 directly opposite the connection between the rotating arm 301 and the handheld rotating arm 302.

[0024] When performing training operations, the user first adjusts the position of the chest support mechanism 2 to adapt to body posture (adjustment range ±60mm, suitable height range 160-210cm). Then, the user holds the handle at the end of the handheld rotating arm 302 and drives the moving arm 301 to move along a preset trajectory. This action is linked by a four-bar linkage system (including the counterweight arm 4, connecting rod 5, moving arm 3, and counterweight frame 1 forming a closed kinetic chain) to achieve vertical reciprocating motion, ensuring that the target muscle group is continuously in the optimal force range.

[0025] This product innovatively adopts a modular four-bar linkage mechanical system, reducing the planar area compared to the traditional insert-type structure. Through the vector compensation algorithm of the balancing weight 11, combined with the four-bar linkage mechanical system, dynamic balance of the moment of inertia is achieved during movement, meeting biomechanical standards. The angle locking of the movement arm 3 precisely controls the shoulder joint's movement within its functional range of motion, resulting in better training of the posterior deltoid muscle. Combined with the adaptive adjustment system of the chest-lifting mechanism 2, this forms a solution covering 90% of adult body sizes.

[0026] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A plate-type posterior deltoid muscle trainer, characterized in that: It includes a counterweight frame, a chest-supporting mechanism inclinedly installed on the front side of the counterweight frame, a motion arm and a counterweight arm installed on the counterweight frame and symmetrically arranged with respect to the chest-supporting mechanism, the counterweight arm being rotatably installed on the outside of the motion arm, and the counterweight arm being rotatably connected to the counterweight frame by a connecting rod.

2. The plate-type posterior deltoid muscle trainer according to claim 1, characterized in that: The motion arm adopts a two-section mechanism, including a rotating arm and a handheld rotating arm. One end of the rotating arm is connected to the counterweight frame through a rotating shaft joint, and the other end is hinged to the handheld rotating arm and can be angle locked.

3. The plate-type posterior deltoid muscle trainer according to claim 2, characterized in that: The counterweight arm is rotatably connected to the rotating arm via a rotating shaft joint.

4. The plate-type posterior deltoid muscle trainer according to claim 3, characterized in that: The counterweight arm and counterweight frame are respectively welded with long lugs and short lugs that are rotatably connected to the connecting rod.

5. A plate-type posterior deltoid muscle trainer according to claim 4, characterized in that: A positioning rod for mounting the chest support mechanism is vertically installed on the counterweight frame, and the chest support mechanism can slide and adjust along the positioning rod.

6. A plate-type posterior deltoid muscle trainer according to claim 2, characterized in that: A counterweight is fixed to the top of the rotating arm. The counterweight is set at a certain angle to the bell hanger on the counterweight arm. The counterweight is located on the other side of the rotating shaft joint relative to the counterweight arm and rotates synchronously with the counterweight arm.

7. A plate-type posterior deltoid muscle trainer according to claim 2, characterized in that: The counterweight frame is provided with an elastic cushioning pad at the connection between the rotating arm and the handheld rotating arm.

Images