Adjustable trajectory compound strength training device

Abstract

The application discloses a compound strength training device with adjustable movement track and relates to the technical field of strength training.The device comprises a non-slip sponge cover and a training structure.The training structure is arranged on the outer side of the non-slip sponge cover.The training structure comprises a first recessed handle, an adjusting shaft and a second recessed handle.The adjusting shaft is arranged on the inner side of the first recessed handle and the second recessed handle.The adjusting shaft is used for adjusting the angle and distance between the first recessed handle and the second recessed handle.The training process is not easy to slip and is not easy to drop the handle.Various training modes are all dependent on the human body limb fitting limiting structure.The limb positioning is stable.The training force track is standard.The target muscle group is accurately acted on.The exercise effect caused by compensation force is avoided.The overall structure is small and light.It is not limited by the site.When multiple parts are trained, multiple independent instruments do not need to be purchased.The home space is reduced.Multiple use modes are completed through simple adjustment, which is simple and fast.

Description

Technical Field

[0001] This invention relates to the field of strength training technology, specifically to a composite strength training device with adjustable movement trajectory. Background Technology

[0002] Strength training uses various equipment, bodyweight, or weighted tools to stimulate the skeletal muscles throughout the body through repetitive resistance movements. This increases muscle size, strength, and endurance, while also enhancing bone density, optimizing basal metabolism, and improving posture and body coordination. It is suitable for various needs such as fitness shaping, sports competition, daily physical improvement, and health maintenance for middle-aged and elderly people.

[0003] This multi-functional strength training device integrates various training functions into one unit. Relying on the frame, counterweights, pulleys, adjustable rails, multi-functional grips, and push bars, it can switch between various resistance training exercises for the whole body muscle groups, such as chest, back, shoulders, legs, and core, without the need to switch between multiple separate machines. It can quickly adjust the load, range of motion, and training angle, and is suitable for both small home use and large commercial gym equipment. It saves space and meets the strength training needs of different groups, such as beginners, those seeking to shape their bodies, professionals seeking to build muscle, and those seeking physical rehabilitation.

[0004] However, existing compound strength training devices have the following shortcomings: Currently, most mature multi-muscle strength training equipment on the market is large-scale gym equipment, which is suitable for complete training of multiple muscle groups. However, the home portable models on the market have a simplified structure and can only cover a very limited number of training parts. If you want to complete multi-body strength training, you need to buy and use a variety of independent machines to practice separately. This results in various equipment being scattered and difficult to store and organize, taking up home space. In addition, the equipment switching process is cumbersome, the training continuity is poor, and the overall ease of use is insufficient.

[0005] Therefore, we propose a composite strength training device with adjustable movement trajectory to address the aforementioned problems. Summary of the Invention

[0006] This invention discloses a multi-muscle group adjustable portable torque fitness device, which solves the problems of traditional fitness equipment having single functions, each device can only train a single muscle group, high purchase cost of multiple devices, large storage space, and inconvenience of carrying and using weighted equipment at home. The device changes the overall bending angle by adjusting the shaft, and is equipped with two sets of torsion springs to provide stable resistance. By switching different angles, it can perform specific training for the biceps, chest fly, thigh adductor, and triceps. The handle is equipped with anti-slip sponge to ensure stable grip. Each training mode is set with a limb limiting structure that conforms to the human body, with a standard force trajectory, and precise training of the target muscle group. The device is lightweight and easy to carry, requires no additional weight, has strong adaptability to different venues, and a single device can achieve strength training for multiple parts of the whole body, reducing the purchase and storage costs of fitness equipment.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a composite strength training device with adjustable movement trajectory, comprising an anti-slip sponge sleeve and a training structure, wherein the training structure is disposed on the outside of the anti-slip sponge sleeve; The training structure includes a first concave grip, an adjustment shaft, and a second concave grip. The adjustment shaft is located inside the first and second concave grips and is used to adjust the angle and distance between the first and second concave grips.

[0008] Preferably, the training structure further includes a first connecting grip, which is installed on the inner side of the anti-slip sponge sleeve, and the number of the first connecting grips is two.

[0009] Preferably, the two first connecting grips are respectively installed on both sides of the first recessed grip, and a first support shaft is installed on the inner side of the two first connecting grips.

[0010] Preferably, each of the two first connecting grips is provided with a first torsion spring at its other end, and the other end of the first torsion spring is fixedly connected to the adjusting shaft.

[0011] Preferably, a second torsion spring is installed at the other end of the adjusting shaft, and a second handle is installed at the other end of the second torsion spring.

[0012] Preferably, a second support shaft is provided on the inner side of the two second grips, and a second recessed grip is provided at the other end of the two second grips.

[0013] Preferably, the second support shaft and the outer side of the second recessed grip are fitted with another anti-slip sponge sleeve, and the two first connecting grips and the first recessed grip and the first support shaft are combined to form position one.

[0014] Preferably, the two second grips are combined with the second support shaft and the second recessed grip to form position two, and the two first torsion springs, the two second torsion springs, the second support shaft and the first support shaft form position three.

[0015] Compared with the prior art, the beneficial effects of the present invention are: This device utilizes an angle-adjustable shaft and dual torsion springs to provide uniform resistance. With simple angle switching, without replacing parts or adding weights, it can target the four core muscle groups: biceps, pectorals, adductors, and triceps. Its high integration significantly reduces the cost of home fitness equipment and occupies less storage space. Anti-slip foam covers on the outer sides of each handle ensure a snug grip, preventing slippage during training. All training modes rely on a limb-fitting and limiting structure, ensuring stable limb positioning, standardized force application, and precise targeting of the target muscle groups. This avoids compensatory force reduction that weakens the training effect. The compact and lightweight design eliminates space limitations, eliminating the need to purchase multiple separate machines for multi-body training, further reducing home space requirements. Multiple usage modes are easily adjustable, making it simple and quick. Attached Figure Description

[0016] Figure 1 This is a perspective view of the main structure of a composite strength training device with adjustable motion trajectory according to the present invention. Figure 2 This is a three-dimensional, disassembled view of the structure in a composite strength training device with adjustable motion trajectory according to the present invention. Figure 3 This is a three-dimensional disassembled view of the training structure in a composite strength training device with adjustable motion trajectory according to the present invention. Figure 4 This is a diagram showing the state of the adjustable motion trajectory composite strength training device of the present invention after adjustment.

[0017] In the diagram: 1. Anti-slip sponge sleeve; 2. Training structure; 201. First connecting grip; 202. First concave grip; 203. First torsion spring; 204. First support shaft; 205. Adjustment shaft; 206. Second torsion spring; 207. Second grip; 208. Second support shaft; 209. Second concave grip. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Example 1, according to Figure 1 - Figure 3As shown, a composite strength training device with adjustable movement trajectory includes an anti-slip sponge sleeve 1 and a training structure 2. The training structure 2 is disposed on the outer side of the anti-slip sponge sleeve 1 and includes a first concave grip 202, an adjustment shaft 205, and a second concave grip 209. The adjustment shaft 205 is disposed on the inner side of the first concave grip 202 and the second concave grip 209 and is used to adjust the angle and distance between the first concave grip 202 and the second concave grip 209. The training structure 2 also includes a first connecting grip 201. 1. Installed on the inner side of the anti-slip sponge sleeve 1, there are two first connecting grips 201. The two first connecting grips 201 are respectively installed on both sides of the first recessed grip 202. The inner side of the two first connecting grips 201 is provided with a first support shaft 204. The other end of each of the two first connecting grips 201 is provided with a first torsion spring 203. The other end of the first torsion spring 203 is fixedly connected to the adjusting shaft 205. The other end of the adjusting shaft 205 is provided with a second torsion spring 206. The other end of the second torsion spring 206 is provided with a second grip 207.

[0020] The overall effect of Embodiment 1 is as follows: When using this multifunctional strength training device for biceps training, the user holds the entire device with one hand, palm facing up, and inserts the arm to be trained into the second channel of the device from bottom to top, continuously pushing the arm inward until the elbow is locked in the middle positioning area of ​​the third position. Then, the arm maintaining the palm-up posture grips the first support shaft 204, relying on the bottom of the upper arm to press against the second support shaft 208 and the upper part of the upper arm to fit against the top of the second concave grip 209 to form a limiting self-locking, completing the limb fixation before training. After the preparation process is completed, the user repeatedly performs elbow flexion and extension movements, relying on the biceps... The biceps brachii resistance training is completed by continuously cyclically flexing and extending the biceps brachii against the bending resistance generated by the deformation of the first torsion spring 203 and the second torsion spring 206. When switching to the chest and arm coordinated training mode, rotate the adjustment shaft 205 to adjust the two side components from a straight 180-degree position to a slightly bent 165-degree position, keeping the convex side of the device facing the user's fingers. Hold the anti-slip sponge sleeve 1 covering the outer side of the first concave grip 202 and the second concave grip 209 with both hands respectively, and rely on the coordinated force of the arm and chest muscles to continuously press inward towards the concave side of the device. During the pressing process, the two sets of torsion springs are subjected to... The device bends and deforms, with the pectoral and arm muscles continuously resisting the spring's bending resistance, simultaneously completing chest shaping and arm muscle training. Before training the inner thigh muscles, readjust the bending angle of the adjustment axis 205 to 100 degrees. The user lies flat with legs bent, placing the device with the convex side facing up between the legs, with the inner thighs pressed against the concave surfaces of the two grips. The legs are slightly adducted to clamp the device for stable positioning. During training, the legs continuously exert inward force to clamp, forcing the torsion spring to bend. The adductor longus and adductor brevis of the thigh continuously resist the spring resistance to complete the leg adduction training. During the training, the gluteus medius and gluteus minimus simultaneously assist in the force exertion. This device also targets the gluteal muscles. Maintaining the 100° bend angle of the adjusting shaft 205, the device is flipped so that the open, convex side faces down on the ground. The user kneels, keeping their back parallel to the ground, grips the handles on both sides with arms bent, and repeatedly presses down on both ends of the device to complete the elbow extension and force exertion motion. The torsion spring continuously provides reverse resistance, specifically targeting the triceps muscles. The entire device allows for equipment-free home training of multiple muscle groups—biceps, chest and arms, thigh adductors, and triceps—by simply adjusting the bend angle of the adjusting shaft 205. One device covers the strength training needs of multiple muscle groups.

[0021] Example 2, according to Figure 2 - Figure 4As shown, a second support shaft 208 is installed on the inner side of the two second grips 207, and a second recessed grip 209 is installed at the other end of the two second grips 207. Another anti-slip sponge sleeve 1 is sleeved on the outer side of the second support shaft 208 and the second recessed grip 209. The two first connecting grips 201, the first recessed grip 202, and the first support shaft 204 are combined to form position one. The two second grips 207, the second support shaft 208, and the second recessed grip 209 are combined to form position two. The two first torsion springs 203, the two second torsion springs 206, the second support shaft 208, and the first support shaft 204 form position three.

[0022] The overall effect of Embodiment 2 is as follows: As described above, this device can freely switch training load intensity without additional counterweight. The first and second grip areas are divided into zones to accommodate various grip postures such as two-handed, one-handed, and clamp grips, respectively targeting different body parts such as the biceps, triceps, and adductor muscles of the arms, achieving compound training of multiple muscle groups in one machine. The surface anti-slip sponge sleeve 1 can increase the friction of the hands, making it less likely to slip during training. The spring buffer structure buffers the impact of force application, avoiding the instantaneous pressure on the joints and causing strain. After the adjustment shaft 205 is slightly bent to adjust the grip angle, it can accommodate users with different hand sizes and heights, making it suitable for a wider range of people. At the same time, the symmetrical arrangement of multiple springs balances the resistance on both sides, corrects the incorrect training posture of unilateral force imbalance, and improves the standard of training movements. The overall integrated combination structure does not require disassembly of parts, takes up less storage space, and is more convenient for daily storage and carrying.

[0023] The working principle of the entire device is as follows: When using this device, to begin biceps strength training on a particular arm, first pick up the device with your other hand, palm up, and pass the arm to be trained through position two from bottom to top. Then, extend the elbow until it is in the middle area of ​​position three. Next, keep the palm up and grip the first support shaft 204. At this point, the lower part of the upper arm supports the second support shaft 208, and the upper part of the upper arm supports the top of the second concave grip 209, thus achieving a stabilizing effect. After this preparation is complete, when starting training, this arm performs repetitive elbow flexion and extension movements, using the humerus... The biceps brachii muscles resist the bending resistance of the first torsion spring 203 and the second torsion spring 206, thereby achieving a training effect targeting the biceps brachii. When training other parts of the body, the angle of the adjustment shaft 205 is adjusted from 180 degrees to 165 degrees, so that the components on both sides of the adjustment shaft 205 are in a slightly bent state. At this time, keep your fingers facing the open convex side of the entire device, and then hold the anti-slip sponge sleeve 1 on the outside of the second concave grip 209 and the first concave grip 202 on both sides respectively. By exerting force with the entire arm and chest, press the device towards the concave side. Pressing causes the first torsion spring 203 and the second torsion spring 206 to bend and resist the bending resistance. Spring 206 bends, causing the arms and chest to resist the bending resistance of the first torsion spring 203 and the second torsion spring 206, thus completing the chest-clamping movement and simultaneously training the arms. After training, the adjustment shaft 205 is adjusted to a bending angle of 100 degrees. The user lies flat with legs bent, placing the device with the convex side facing up between the legs, and pressing the inner sides of the thighs against the concave sides of the second concave handle 209 and the first concave handle 202. At this point, the device is held in a stable state by slightly clamping the legs. After preparation, the user squeezes inward with the thighs, causing the first torsion spring 203 and the second torsion spring 206 to bend. The torsion spring 206 bends, causing the adductor longus and adductor brevis muscles on the inner thigh to resist the bending resistance of the first torsion spring 203 and the second torsion spring 206. At the same time, the gluteus medius and gluteus minimus muscles on both sides of the buttocks assist in the force to achieve the training effect, thereby performing strength training on the legs. In this angled state, with the open convex side facing down and placed on the ground, the user holds the first concave handle 202 and the second concave handle 209 on both sides with both hands respectively. The user is in a kneeling position with the back of the waist and the ground level and the arms bent. At this time, by repeatedly pushing and pressing down on both ends of the device, the arms repeatedly perform the elbow joint straightening movement, thereby completing the training of the triceps brachii.

[0024] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A composite strength training device with adjustable motion trajectory, characterized in that: It includes an anti-slip sponge sleeve (1) and a training structure (2), wherein the training structure (2) is disposed on the outside of the anti-slip sponge sleeve (1); The training structure (2) includes a first concave grip (202), an adjustment shaft (205), and a second concave grip (209). The adjustment shaft (205) is located inside the first concave grip (202) and the second concave grip (209). The adjustment shaft (205) is used to adjust the angle and distance between the first concave grip (202) and the second concave grip (209).

2. The compound strength training device with adjustable motion trajectory according to claim 1, characterized in that: The training structure (2) further includes a first connecting grip (201), which is installed on the inside of the anti-slip sponge sleeve (1), and there are two first connecting grips (201).

3. The compound strength training device with adjustable motion trajectory according to claim 2, characterized in that: Two first connecting grips (201) are respectively installed on both sides of the first recessed grip (202), and a first support shaft (204) is installed on the inner side of the two first connecting grips (201).

4. The compound strength training device with adjustable motion trajectory according to claim 3, characterized in that: Each of the two first connecting grips (201) is provided with a first torsion spring (203) at the other end, and the other end of the first torsion spring (203) is fixedly connected to the adjusting shaft (205).

5. The compound strength training device with adjustable motion trajectory according to claim 4, characterized in that: A second torsion spring (206) is installed at the other end of the adjusting shaft (205), and a second handle (207) is installed at the other end of the second torsion spring (206).

6. The compound strength training device with adjustable motion trajectory according to claim 5, characterized in that: A second support shaft (208) is installed on the inner side of the two second grips (207), and a second recessed grip (209) is installed at the other end of the two second grips (207).

7. The compound strength training device with adjustable motion trajectory according to claim 6, characterized in that: Another anti-slip sponge sleeve (1) is fitted on the outer side of the second support shaft (208) and the second recessed grip (209). The two first connecting grips (201), the first recessed grip (202), and the first support shaft (204) are combined to form position one.

8. The compound strength training device with adjustable motion trajectory according to claim 7, characterized in that: The two second grips (207) are combined with the second support shaft (208) and the second recessed grip (209) to form position two, and the two first torsion springs (203), the two second torsion springs (206), the second support shaft (208) and the first support shaft (204) form position three.

Images