Elastic section resistance training device

By adjusting the ratio of elastic and inelastic segments in the elastic segment resistance training device, the problem of existing devices being unable to adjust length and elasticity loss has been solved, enabling personalized training for patients and long-term use of the device.

CN224207299UActive Publication Date: 2026-05-08THE THIRD AFFILIATED HOSPITAL OF SUN YAT SEN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
THE THIRD AFFILIATED HOSPITAL OF SUN YAT SEN UNIV
Filing Date
2025-05-21
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing elastic segment devices cannot adjust their length according to the patient's leg length, resulting in poor exercise effects; loss of elasticity in the elastic segment affects the device's lifespan.

Method used

An elastic segment resistance training device was designed. By adjusting the ratio of elastic and non-elastic segments while keeping the length of the elastic band constant, the resistance can be adjusted. The elastic segment can be disassembled and replaced to avoid problems such as insufficient elastic band length or loss of elasticity.

Benefits of technology

This technology allows for adjustment of the elastic band length based on the patient's leg length, improving exercise effectiveness and extending the device's lifespan. It also avoids poor exercise results and device damage caused by insufficient elastic band length or loss of elasticity.

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Abstract

The utility model relates to the technical field of medical instruments, in particular to an elastic section resistance training device. The training device comprises a bottom plate, a pushing mechanism and a training mechanism, the training mechanism comprises a mounting plate fixedly arranged on the upper surface of the pushing assembly, an elastic belt ring movably arranged in the mounting plate in a penetrating mode and a limiting assembly detachably arranged on the mounting plate. The elastic band ring is composed of an elastic section and a non-elastic section which are connected end to end; a plurality of limiting rings which are arranged at intervals are fixedly arranged on the elastic belt rings in a penetrating manner; the limiting assembly comprises a pair of limiting rods vertically and movably arranged in the mounting plate in a penetrating mode and a connecting plate fixedly arranged between the upper end faces of the two limiting rods. According to the device, the resistance of the elastic section can be adjusted under the condition that the length of the elastic band ring is not changed.
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Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to an elastic segment resistance training device. Background Technology

[0002] Elastic segments are frequently used as a common rehabilitation device. Existing elastic segment devices can adjust the resistance of the elastic segment by shortening its length. However, the following problems arise during actual operation:

[0003] 1. Because different patients have different leg lengths, the length of the elastic segment needs to be adjusted. When the length of the elastic segment is short and the length of the patient's leg is long, the patient's leg may not be able to fully extend, thus affecting the patient's exercise effect.

[0004] 2. Since different patients require different exercise intensity, when the length of the elastic segment is shortened to increase the resistance of the elastic segment, the patient's leg may not be able to fully extend due to the shortened length of the elastic segment, thus affecting the patient's exercise effect.

[0005] 3. Because the elasticity of the elastic section is easily lost after long-term use, while the service life of the other parts is longer, the existing device cannot be used when the elasticity of the elastic section is lost, which will affect the service life of the device. Utility Model Content

[0006] To address the aforementioned problems, the purpose of this invention is to provide an elastic segment resistance training device that can adjust the resistance of the elastic segment while keeping the length of the elastic ring constant.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A resistance training device with elastic segments includes a base plate, a pushing mechanism slidably disposed on the upper surface of the base plate, and a training mechanism fixedly disposed on the upper surface of the pushing mechanism. The training mechanism includes a mounting plate fixedly disposed on the upper surface of the pushing mechanism, an elastic band ring movably disposed within the mounting plate, and a limiting component detachably disposed on the mounting plate and cooperating with the elastic band ring to achieve resistance adjustment. The elastic band ring is composed of elastic segments and non-elastic segments connected end to end. Several spaced limiting rings are fixedly disposed through the elastic band ring. The limiting component includes a pair of vertically movable limiting rods disposed within the mounting plate and a connecting plate fixed between the upper end faces of the two limiting rods. A pair of symmetrical limiting slots are opened at the top front of the mounting plate. The elastic band ring is movably sleeved on the two limiting slots. Each limiting slot has a slot at its bottom that matches the limiting rod. The lower part of each limiting rod passes through the limiting ring on the corresponding side and is inserted into the slot.

[0009] More preferably, the pushing mechanism includes a slide rail horizontally embedded in the base plate, a seat cushion fixed on the upper surface of the base plate at one end of the slide rail, a slider slidably disposed in the slide rail, and a foot support plate fixed on the upper surface of the slider; the mounting plate is fixedly connected to the foot support plate.

[0010] More preferably, a placement box for placing the elastic segment or the non-elastic segment is fixedly provided on the rear side of the mounting plate at the two limiting grooves, and a cover can be detachably provided on the top of the placement box.

[0011] More preferably, an elastic sleeve is also movably sleeved on the outside of the elastic component.

[0012] This utility model has the following beneficial effects:

[0013] 1. This utility model can adjust the length (i.e., effective length) of the elastic band ring located on the front side of the mounting plate according to the patient's leg length. The longer the patient's leg is, the greater the effective length is required, and vice versa. This avoids the situation where the patient's leg cannot be fully extended due to insufficient length of the elastic band ring, thereby improving the patient's exercise effect.

[0014] 2. This utility model can adjust the resistance of the elastic band ring by changing the ratio of the elastic segment and the non-elastic segment while keeping the effective length constant. The higher the proportion of the elastic segment, the lower the resistance of the elastic band ring, and vice versa. Thus, the resistance of the elastic band ring can be adjusted while keeping the effective length of the elastic band ring unchanged. This avoids the situation where the patient's leg cannot be fully extended when the elastic segment is shortened to increase the resistance of the elastic segment, thereby improving the patient's exercise effect.

[0015] 3. This utility model allows for quick replacement of the elastic band ring, thereby minimizing the possibility of the device becoming unusable due to loss of elasticity after prolonged use, thus extending the device's service life. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the training device;

[0017] Figure 2 Top view of the training device;

[0018] Figure 3 This is a schematic diagram of the cross-section at point AA;

[0019] Figure 4 This is a schematic diagram of the cross-section at point BB.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Base plate; 2. Pushing mechanism; 21. Slide rail; 22. Seat cushion; 23. Slider; 24. Foot support plate; 3. Training mechanism; 31. Mounting plate; 311. Limiting slot; 312. Slot; 313. Placement box; 314. Cover; 32. Elastic belt ring; 321. Elastic section; 322. Non-elastic section; 323. Limiting ring; 324. Elastic sleeve; 33. Limiting component; 331. Limiting rod; 332. Connecting plate. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] A resistance training device with elastic segments includes a base plate 1, a pushing mechanism 2 slidably disposed on the upper surface of the base plate 1, and a training mechanism 3 fixedly disposed on the upper surface of the pushing mechanism 2. The training mechanism 3 includes a mounting plate 31 fixedly disposed on the upper surface of the pushing mechanism 2, an elastic band ring 32 movably disposed within the mounting plate 31, and a limiting component 33 detachably disposed on the mounting plate 31 and cooperating with the elastic band ring 32 to achieve resistance adjustment. The elastic band ring 32 is composed of elastic segments 321 and non-elastic segments 322 connected end to end. Several elastic segments 321 and non-elastic segments 322 are fixedly disposed through the elastic band ring 32. The limiting rings 323 are spaced apart; the limiting assembly 33 includes a pair of vertically movable limiting rods 331 that pass through the mounting plate 31 and a connecting plate 332 fixed between the upper surfaces of the two limiting rods 331; the top front of the mounting plate 31 has a pair of left and right symmetrical limiting slots 311, the elastic band ring 32 is movably sleeved on the two limiting slots 311, and each limiting slot 311 has a slot 312 at the bottom that is adapted to the limiting rod 331; the lower part of each limiting rod 331 passes through the limiting ring 323 on the corresponding side and is inserted into the slot 312.

[0024] Before use, remove the connecting plate 322 and the limiting rod 331 from the mounting plate 31. Then, fit the elastic band ring 32 onto the two limiting slots 311. Adjust the position of the elastic segment 321 and the non-elastic segment 322 according to the patient's leg length and the required training length, i.e., the sum of the lengths of the elastic band ring 32 on the front side of the mounting plate 321 and the proportion of the lengths of the elastic segment 321 and the non-elastic segment 322. Then, align the two limiting rods 331 with the two slots 312 respectively. Then, move the connecting plate 332 downward so that the lower ends of the two limiting rods 331 pass through the limiting rings 323 above the slots 312 on the corresponding sides of the elastic segment 321 or the non-elastic segment 322 and are inserted into the slots 312. During use, the patient holds the elastic segment 321 or the non-elastic segment 322 and pushes the pushing mechanism 2 with their feet to exercise the patient's lower limbs.

[0025] As a possible implementation of this solution, preferably, the pushing mechanism 2 includes a slide rail 21 horizontally embedded on the base plate 1, a seat cushion 22 fixed on the upper surface of the base plate 1 at one end of the slide rail 21, a slider 23 slidably disposed in the slide rail 21, and a foot support plate 24 fixed on the upper surface of the slider 23; the mounting plate 31 is fixedly connected to the foot support plate 24; when in use, the patient sits on the seat cushion 22 with their feet against the foot support plate 24, and then uses the strength of their legs and feet to overcome the elastic force of the elastic segment 321 located on the front side of the mounting plate 31 to push the foot support plate 24. When the patient's feet are extended to the farthest point, the strength of the legs is relaxed. At this time, under the elastic force of the elastic segment 321 located on the front side of the mounting plate 31, the patient's feet retract and the legs bend until the foot support plate 24 moves to the initial position, and then the next training can be carried out.

[0026] As a possible implementation of this solution, preferably, a placement box 313 for placing the elastic segment 321 or the non-elastic segment 322 is fixedly provided on the rear side of the mounting plate 31 at the two limiting grooves. A cover 314 can also be detachably covered on the placement box 313. The placement box 313 can store the unused parts of the elastic segment 321 and the non-elastic segment 322, thereby avoiding friction on the base plate 1 due to the long length of the unused parts of the elastic segment 321 and the non-elastic segment 322, thereby minimizing wear caused by friction between the unused parts of the elastic segment 321 and the base plate 1 and improving the service life of the device.

[0027] As a possible implementation of this solution, preferably, an elastic sleeve 324 is also movably sleeved on the outer side of the elastic band ring 32; the setting of the elastic sleeve 324 can increase the friction between the patient and the elastic segment 321 or the non-elastic segment 322 when the patient holds the elastic segment 321 or the non-elastic segment 322, thereby improving the patient's comfort when using this device for training.

[0028] The above description is only a specific embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural transformations made based on the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A resistance training device for an elastic segment, characterized in that: It includes a base plate (1), a pushing mechanism (2) that slides on the upper surface of the base plate (1), and a training mechanism (3) that is fixed on the upper surface of the pushing mechanism (2); The training mechanism (3) includes a mounting plate (31) fixed on the upper surface of the push assembly, an elastic belt ring (32) movably inserted in the mounting plate (31), and a limiting assembly (33) detachably mounted on the mounting plate (31) and cooperating with the elastic belt ring (32) to achieve resistance adjustment. The elastic band ring (32) is composed of an elastic segment (321) and a non-elastic segment (322) connected end to end; a number of spaced limiting rings (323) are fixedly installed through the elastic band ring (32); The limiting assembly (33) includes a pair of vertically movable limiting rods (331) that are inserted into the mounting plate (31) and a connecting plate (332) fixed between the upper surfaces of the two limiting rods (331); The mounting plate (31) has a pair of left and right symmetrical limiting slots (311) on the top front. The elastic band ring (32) is movably sleeved on the two limiting slots (311). Each limiting slot (311) has a slot (312) at the bottom that is compatible with the limiting rod (331). Each limiting rod (331) passes through the limiting ring (323) on the corresponding side and is then inserted into the slot (312).

2. The elastic segment resistance training device according to claim 1, characterized in that: The pushing mechanism (2) includes a slide rail (21) horizontally embedded on the base plate (1), a seat cushion (22) fixed on the upper surface of the base plate (1) at one end of the slide rail (21), a slider (23) slidably disposed in the slide rail (21), and a foot support plate (24) fixed on the upper surface of the slider (23); the mounting plate (31) is fixedly connected to the foot support plate (24).

3. The elastic segment resistance training device according to claim 1, characterized in that: The mounting plate (31) is also fixedly provided with a placement box (313) for placing the elastic segment (321) or the non-elastic segment (322) at the two limiting grooves on the rear side. The placement box (313) is also detachably covered with a cover (314).

4. The elastic segment resistance training device according to claim 1, characterized in that: An elastic sleeve (324) is also movably sleeved on the outside of the elastic band ring (32).