Multifunctional fitness device with coupling structure

Abstract

A multifunctional fitness device with a coupling structure, comprising a training frame, wherein a sliding carriage (2), a sliding bar (3) and the barbell (1) form the Smith training mechanism, wherein weight stacks via pulleys and rope form the cable crossover training mechanism, characterized in that the rope of the cable crossover training mechanism is divided into two ends, one end being provided as a cable crossover training mechanism, and the other end being connected to the barbell (1) via the coupling structure, provided as a Smith training mechanism, wherein the coupling structure comprises the front suspension (4), the rear hook (6) and the coupling bolt (9), wherein the front suspension (4) and the rear hook (6) are movably connected by means of the coupling bolt (9).

Description

Technical field

[0001] The present utility model belongs to the field of fitness equipment, in particular it relates to a multifunctional fitness device with a coupling structure. State of the art

[0002] In the field of fitness training, strength training equipment is mainly divided into two categories: free weight machines and machines with a fixed motion path. Machines with a fixed motion path are very popular due to their high safety and ease of use, especially in commercial gyms and home fitness settings.

[0003] The Smith machine is a classic fixed-path strength training device. Its core structure consists of a vertical or near-vertical training frame and a barbell, which is confined within the frame and can only move up and down along a preset straight path. Users can perform various complex movements such as squats, bench presses, and shoulder presses.

[0004] The cable crossover training machine is a specialized piece of equipment designed specifically for isolated training of the pectoral muscles, anterior deltoids, and other muscle groups. Users typically sit on the machine and, using handles or armrests, perform the "fly" training movement of opening and closing their arms in front of their body.

[0005] Experts in this field have also tried to implement some simple combinations to improve the multifunctionality of the device, but the functions are not organically combined; users still have to switch between two independent devices, the training sequence is not coherent, and an efficient experience where both pressing exercises and flying (two different biomechanical modes) can be performed at the same workstation cannot be achieved.

[0006] Therefore, an innovative solution is urgently needed in the field of fitness equipment that truly and structurally integrates the vertical pressing function of the Smith training machine with the horizontal / arc-shaped fly function of the cable crossover training machine. Content of the utility model

[0007] To solve the aforementioned problems, the present utility model provides a multifunctional fitness device with a coupling structure, comprising the training frame, wherein a sliding carriage, a sliding bar, and the barbell form the Smith training mechanism, and wherein weight stacks, via pulleys and a rope, form the cable crossover training mechanism. The rope of the cable crossover training mechanism is divided into two ends, one end being designed as the cable crossover training mechanism, and the other end being connected to the barbell via the coupling structure, designed as the Smith training mechanism.

[0008] The coupling structure comprises the front suspension, the rear mounting hook, and the coupling bolt. The front suspension and the rear mounting hook are movably connected by means of the coupling bolt.

[0009] The front suspension is a Z-shaped front hook that is rigidly attached to both ends of the barbell. The front suspension further comprises the front hook portion and the rear end piece, the rear end piece being operatively connected to the coupling bolt.

[0010] The front end of the front suspension is rigidly connected to a front suspension column, which is rigidly connected to both ends of the barbell. The front suspension further comprises the rear end piece, the rear end piece being operatively connected to the coupling bolt.

[0011] The front suspension has two attachment forms: the hook form and the column form, both of which allow the coupling structure to be suspended from the locking bolt.

[0012] The rear mounting hook is connected to the mounting plate of the sliding carriage. The coupling bolt passes through the limiting slot of the sliding carriage and connects to the coupling threaded hole of the rear mounting hook. The limiting part of the rear mounting hook is operatively connected to the limiting rod of the sliding carriage.

[0013] Weight plates are arranged at both ends of the barbell. The present utility model allows not only two training structures to share a weight stack system, but also for the Smith machine to separately utilize its original weight plate weighting.

[0014] A protective housing is arranged on the outside of the coupling structure.

[0015] The advantageous effects of the present utility model are: 1. The present utility model organically combines the barbell and the weight stack by means of the coupling structure, allowing two types of training to share a weight system of the weight stack. 2. The coupling structure of the present utility model does not require manual adjustment by others. Loading and unloading the weight stack is achieved solely by rotating the barbell, which drives the front suspension and the rear hook, making operation simple and ensuring a high level of safety. 3. The present utility model also allows the coupling structure to be suspended at any position on a suspension column during training in order to interrupt the training and better protect the trainee. 4. The present utility model can specify the height of the weight support. If the weight support is in a higher position, the barbell is not loaded, thus reducing the stress on the knees during squats, which is more helpful for different trainees. 5. The present utility model further ensures that the up and down movement of the Smith exercise is not affected by interference when weight plates are used on the barbell. Description of the drawings Fig. Figure 1 is a schematic diagram of the overall structure of embodiment 1 of the present utility model; Fig. Figure 2 is a schematic diagram of the overall structure of the coupling structure with protective housing of embodiment 1 of the present utility model; Fig. Figure 3 is a schematic diagram of the simplified structure of the coupling structure of embodiment 1 of the present utility model; Fig. Figure 4 is a schematic diagram of the local magnification structure of part A of the Fig. 3, with the mounting plate on one side removed; Fig. Figure 5 is a schematic exploded view of the simplified structure of the coupling structure of embodiment 1 of the present utility model; Fig. Figure 6 is a schematic diagram of the simplified structure of the coupling structure of embodiment 2 of the present utility model; Fig. Figure 7 is a schematic diagram of the closed structure of the rear hook of the coupling structure of the present utility model; Fig. Figure 8 is a schematic diagram of the opened structure of the rear hook of the coupling structure of the present utility model.

[0016] Reference symbols: 1 Barbell bar; 2 Slider; 3 Slide bar; 4 Front suspension; 5 Rubber stop column; 6 Rear hook; 7 Weight carrier; 8 Cable; 9 Coupling bolt; 10 Locking bolt; 11 Support mount; 12 Support column; 13 Protective housing. 201 Mounting plate; 202 Pivot hole; 203 Limit rod; 204 Limit slot; 401 front hook part; 402 limit post; 403 fastening part; 404 rear end piece; 601 rear hook part; 602 limiting part; 603 pivot hole; 604 coupling threaded hole. Specific embodiments

[0017] The present utility model is described in more detail below with reference to the attached drawings and embodiments 1 and 2. Example 1

[0018] As in Fig. As shown in Figures 1 to 3, a multifunctional fitness device with a coupling structure comprises a training frame. The support column 12, the crossbeam, the locking bolt 10, the sliding bar 3, and the guide rail for the weight stack of the training frame are each arranged symmetrically. The sliding carriage 2 is connected to the sliding bar 3, and the barbell 1 is connected to the center of the sliding carriage 2 to form the Smith training mechanism. The weight stack and the guide rail for the weight stack, via pulleys and the cable 8, form the cable crossover training mechanism. The cable 8 of the cable crossover training mechanism is divided into two ends, one end being free as the cable crossover training mechanism, and the other end being fitted with the weight carrier 7. The weight carrier 7 is connected to the barbell 1 via the coupling structure, forming the Smith training mechanism.

[0019] The weight carrier 7 is placed on the support mount 11 when it is separated from the barbell bar 1.

[0020] The two ends of the barbell bar 1 can be loaded with weight plates and other weights. The present utility model not only allows two training structures to share a weight stack system, but also enables the Smith machine to separately use its original weight plate weighting.

[0021] A protective housing 13 is arranged on the outside of the coupling structure.

[0022] As in Fig. 4 and Fig. As shown in Figure 5, the coupling structure includes the sliding carriage 2. The sliding carriage 2 is connected to the front suspension 4 and the rear hook 6. The front suspension 4 interacts with the rear hook 6.

[0023] The front suspension 4 consists of a front hook, which is Z-shaped overall. It uses the fastening part 403 to connect the two ends of the barbell 1. The barbell 1 and the sliding carriage 2 are connected by means of bearings. The front suspension 4 also includes the front hook part 401. A limiting column 402 is located in the center of the front hook part 401. The front suspension also includes the rear end piece 404. The rear end piece 404 is operatively connected to the coupling bolt 9. A limiting rubber column 5 is located on the lower part of the sliding carriage 2, which limits the rear end piece 404 from exceeding its range of motion. The limiting column 402 limits the front suspension from exceeding its range of motion and prevents a safety hazard.

[0024] The rear mounting hook 6 is connected to the mounting plate 201 via the pivot pin hole 603 and the pivot pin through-hole 202 by means of a screw bearing. The coupling bolt 9 passes through the limiting slot 204 and is connected to the coupling threaded hole 604. The limiting part 602 is operatively connected to the limiting rod 203. The rear hook part 601 is arranged on the upper part of the rear mounting hook 6.

[0025] The coupling structure of the present utility model has three states, which are described in more detail below. Open state

[0026] As in Fig. As shown in Figure 8, the barbell 1 is rotated forward. The rear end piece 404 of the front suspension and the coupling bolt 9 of the rear hook 6 are separated. The rear hook 6 opens naturally under its own weight. Its opening angle is limited by the stop bar 203 and the stop section 602. The stop also serves to bear the weight of the weight carrier 7. The optimal opening angle is achieved when the rear hook section 601 is horizontal.

[0027] In the open position, the weight carrier 7 is positioned in the middle to lower position of the support column 12. The sliding carriage 2 slides downwards. The rear hook 6 closes naturally as the weight carrier 7 passes and then opens again naturally, subsequently lifting the barbell 1. At this point, the rear hook section 601 suspends the weight carrier 7, allowing the barbell 1 to bear the weight of the weight stack. Closed state

[0028] As in Fig. As shown in Figure 7, the barbell 1 is rotated backwards. The rear end piece 404 of the front suspension presses the coupling bolt 9 of the rear hook 6, causing the rear hook to contract inwards. At this point, the barbell 1 can move freely up and down without restriction. Pause state

[0029] When the coupling structure has suspended the weight carrier 7, and the training is to be ended or a training break is required, one simply needs to continue rotating the barbell 1 forward, and the front hook part 401 can be suspended on the locking bolt 10. Example 2

[0030] As in Fig. As shown in Figure 6, the front end of the front suspension 4 is rigidly connected to a front suspension column. The locking bolt 10 is provided with a locking slot. The locking slot interacts with the front suspension column to lock the barbell 1. A limiting block is arranged in the center of the front suspension 4, which ensures that the front suspension 4 moves within the limited range, prevents component interference, and ensures safety. The remaining structure is identical to embodiment 1.

[0031] Finally, it should be noted that the foregoing descriptions merely represent preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, a person skilled in the art may further modify the technical solutions described in the foregoing embodiments or replace some of the technical features with equivalents. All changes, equivalent replacements, improvements, etc., made within the spirit and principles of the present utility model should be included in the scope of protection of the present utility model.

[0032] The present utility model belongs to the field of fitness equipment; specifically, it is a multifunctional fitness device with a coupling structure, comprising a training frame, wherein a sliding carriage, a sliding bar, and the barbell form the Smith machine training mechanism, and wherein weight stacks, via pulleys and a rope, form the cable crossover training mechanism. The rope of the cable crossover training mechanism is divided into two ends, one end being designed as the cable crossover training mechanism, and the other end being connected to the barbell via the coupling structure, designed as the Smith machine training mechanism. The coupling structure comprises the front suspension, the rear hook, and the coupling bolt, wherein the front suspension and the rear hook are movably connected by means of the coupling bolt.The present utility model organically combines the barbell and the weight stack using a coupling structure, allowing two training methods to share the same weight stack system. The coupling structure of this utility model requires no manual adjustment by others. Loading and unloading the weight stack is achieved simply by rotating the barbell, which drives the front suspension and the rear hook, making operation straightforward and ensuring a high level of safety.

Claims

[1] A multifunctional fitness apparatus with a coupling structure, comprising a training frame, wherein a sliding carriage (2), a sliding bar (3) and the barbell bar (1) form the Smith training mechanism, wherein weight stacks via pulleys and rope form the cable crossover training mechanism, characterized by , that the rope of the cable crossover training mechanism is divided into two ends, one end being provided as a cable crossover training mechanism, and the other end being connected to the barbell bar (1) via the coupling structure, provided as a Smith training mechanism, wherein the coupling structure comprises the front suspension (4), the rear hook (6) and the coupling bolt (9), wherein the front suspension (4) and the rear hook (6) are movably connected by means of the coupling bolt (9). [2] The multifunctional fitness device with coupling structure according to claim 1, characterized by, that the front suspension (4) is an overall z-shaped front hook, wherein the front suspension (4) is firmly connected to the two ends of the barbell bar (1), wherein the front suspension further comprises the front hook part (401) and the rear end piece (404), wherein the rear end piece (404) is operatively connected to the coupling bolt (9). [3] The multifunctional fitness device with coupling structure according to claim 1, characterized by , that the front end of the front suspension (4) is firmly connected to a front suspension column, wherein the front suspension (4) is firmly connected to the two ends of the barbell bar (1), wherein the front suspension (4) further comprises the rear end piece (404), wherein the rear end piece (404) is operatively connected to the coupling bolt (9). [4] The multifunctional fitness device with coupling structure according to claim 1, characterized by, that the rear hook (6) is connected to the mounting plate (201) of the slide (2), wherein the coupling bolt (9) passes through the limiting slot (204) of the slide (2) and is connected to the coupling threaded hole (604) of the rear hook (6), wherein the limiting part (602) of the rear hook (6) is operatively connected to the limiting rod (203) of the slide (2). [5] The multifunctional fitness device with coupling structure according to claim 1, characterized by , that weight plates are arranged at the two ends of the barbell bar (1). [6] The multifunctional fitness device with coupling structure according to claim 1, characterized by , that a protective housing (13) is arranged on the outside of the coupling structure.

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