A strength training device

Abstract

The utility model discloses a strength training device, including a training plate, a fixed plate, a pulling rope, a bending plate and a power mechanism, wherein the training plate is provided with a fixed plate and a bending plate integrally formed with the fixed plate, wherein a pulling rope is provided on the bending plate, wherein one end of the pulling rope is fixedly connected to the top of the bending plate, and the other end is connected to the power mechanism, wherein one end of the selection rotation block facing the fixed plate is connected with a connecting force-bearing sliding block adapted to slide with a force-bearing sliding groove, and a protective mechanism is provided on a side of the limiting plate facing the training plate, wherein the protective mechanism includes a connecting portion, a pressure portion and a limiting portion. The novel aerobics strength training device can provide limiting protection when bending by providing a limiting protective mechanism on the fixed plate and the training plate, and when the bending plate is continuously subjected to tension and the tension is greater than the limiting pressure of the pressure portion, the limiting portion contacts and limits the fixed plate, allowing the fixed plate to rotate, thereby avoiding the occurrence of risks.

Description

Technical Field

[0001] The utility model relates to the technical field of aerobics training, in particular to a strength training device. Background Art

[0002] Aerobics is a sport that integrates gymnastics, music, and dance to pursue human health and beauty. Therefore, aerobics has multiple social and cultural functions such as sports, dance, music, and aesthetic education. A calisthenics strength training exercise device with publication number CN210278120U is retrieved and includes a base, a bearing platform is fixedly installed on the upper end of the base, an elastic plate is fixedly installed on one end of the upper surface of the bearing platform, a groove is opened inside the bearing platform, an L-shaped side plate is fixedly connected to the side of the groove close to the elastic plate, a cavity is formed between the side plate and the groove, an inner side wall of the cavity is rotatably connected to a threaded rod, an end of the threaded rod away from the cavity passes through the side plate and is rotatably connected to the inner side wall of the groove, and the threaded rod is rotatably connected to the side plate. The utility model rotates the first bevel gear and the second bevel gear of the handle so that the threaded rod drives the sliding block to move, so that the first connecting rod drives the elastic plate to press down, so that the waist of the trainee follows the elastic plate to press down, and the effect of controlling the descent depth at any time is achieved. When the device is working, the rotation of the threaded rod drives the sliding block to move, and the moving sliding block generates a pulling force on the elastic plate to pull the elastic plate to form a curved surface;

[0003] Since the device is an auxiliary device for assisting lumbar bending, the material used must not be too soft and only serves as an identification. The material must have a certain supporting and auxiliary effect on the human body. However, if the elastic plate of this technology is continuously bent under force, the connection between the elastic plate and the support platform will produce continuous and huge force under the action of the elastic force, and there is a risk of fatigue fracture during long-term use. If the elastic plate breaks when bending, if there is no protective structure, the elastic plate will directly hit the back of the trainee under the action of the huge elastic force, causing injury, which is a problem of poor safety of the existing technology. Utility Model Content

[0004] Technical issues to be solved

[0005] The purpose of the utility model is to provide a strength training device, which can provide limit protection when bending by arranging a limit protection mechanism on a fixed plate and a training plate. When the bending plate is continuously subjected to tension and the tension is greater than the limit pressure of the pressure part, the limit part contacts and limits the fixed plate to rotate, thereby avoiding the occurrence of risks.

[0006] Technical Solution

[0007] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a strength training device, comprising a training plate, a fixed plate, a pulling rope, a bending plate and a power mechanism, the training plate being provided with a fixed plate and a bending plate integrally formed with the fixed plate, the bending plate being provided with a pulling rope, one end of the pulling rope being fixedly connected to the top of the bending plate, and the other end being connected to the power mechanism, the power mechanism comprising a slide groove provided inside the training plate and a threaded slider adapted to the slide groove, a screw rod and a rotating handle connected to the screw rod passing through the threaded slider, a force slide groove being provided at one end of the fixed plate facing the training plate, a selection rotating block being fixedly connected to the training plate, a connection force sliding block adapted to slide in the force slide groove being connected at one end of the selection rotating block facing the fixed plate, a limiting plate being fixedly connected to one side of the bottom of the selection rotating block, a protective mechanism being provided on a side of the limiting plate facing the training plate, the protective mechanism comprising a connecting portion, a pressure portion and a limiting portion.

[0008] Furthermore, the limiting part includes a frame and a rotating resistance plate movably connected in the frame, the bottom of the frame is fixedly connected to the training board, and the rotating resistance plate is also fixedly connected with a hook hole.

[0009] Furthermore, the pressure part includes an installation groove opened on the training plate, and a force-bearing plate, a pressure limiting plate and a pressure limiting spring arranged in the installation groove. One side of the force-bearing plate away from the opening of the installation groove is movably connected to two symmetrically arranged pressure limiting plates. One end of the pressure limiting spring is welded to the pressure limiting plate, and the other end is welded to the force-bearing plate.

[0010] Furthermore, the connecting part includes a pulling hook and a pulling rope, one end of the pulling rope is threadedly connected to the force-bearing plate, and the other end is threadedly connected to the pulling hook that passes through the hook hole.

[0011] Furthermore, the pressure limiting spring forms an inclination angle with respect to the horizontal center line of the force-bearing plate, and the inclination angle is 45°.

[0012] Furthermore, the selection rotating block is also provided with a long strip of additional locking plate, one end of which is connected to the outer wall of the selection rotating block by bolts, and the other end of which extends to the fixed plate and is locked by bolts.

[0013] Beneficial Effects

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] (1) This solution can make the tension of the pressure limit spring at the front end of the force-bearing plate by forming a pressure limit spring at a certain angle, so as to achieve the best elastic force obstruction effect and avoid the situation where the force-bearing arm is too small and wastes elastic force. The pressure part can form a certain resistance to the limiting part through the connecting part. When the force on the fixed plate is greater than the resistance generated by the pressure part, the fixed plate rotates, so that the fixed plate is flat on the training plate, which facilitates the withdrawal of the device and reduces the impact of the device on bending training;

[0016] (2) The additional locking plate provided in this solution can further secure the connection between the fixed plate and the optional rotating block, thereby achieving a good fixing effect. The fixed plate and the optional rotating block that can be slidably connected can facilitate the disassembly of the fixed plate, and the cleaning and replacement of the fixed plate are convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the side structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the connection structure of the fixing plate and the training plate of the utility model;

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the fixed plate and the optional rotating block connected to the utility model;

[0020] Figure 4 For this utility model Figure 2 Schematic diagram of the local enlarged structure at point A in the middle.

[0021] In the figure: 1. Training board; 2. Fixed board; 3. Select rotating block; 4. Connect force-bearing slider; 5. Force-bearing slide groove; 6. Pull rope; 7. Bending plate; 8. Limiting plate; 9. Rotating resistance plate; 10. Pull hook; 11. Pull rope; 12. Installation groove; 13. Force-bearing plate; 14. Pressure limiting plate; 15. Pressure limiting spring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Embodiment 1

[0024] See also Figure 1-Figure 4, this embodiment provides the following technical solutions; a strength training device, comprising; a training plate 1, a fixed plate 2, a pulling rope 6, a bending plate 7 and a power mechanism, the training plate 1 is provided with a fixed plate 2 and a bending plate 7 integrally formed with the fixed plate 2, a pulling rope 6 is provided on the bending plate 7, one end of the pulling rope 6 is fixedly connected to the top of the bending plate 7, and the other end is connected to the power mechanism, the power mechanism comprises a slide groove opened inside the training plate 1 and a threaded slider adapted to the slide groove, a screw rod and a rotating handle connected to the screw rod are penetrated in the threaded slider, a force slide groove 5 is opened at one end of the fixed plate 2 facing the training plate 1, a selection rotating block 3 is fixedly connected to the training plate 1, a connection force slider 4 adapted to slide with the force slide groove 5 is connected to one end of the selection rotating block 3 facing the fixed plate 2, a limiting plate 8 is fixedly connected to one side of the bottom of the selection rotating block 3, and a protective mechanism is provided on the side of the limiting plate 8 facing the training plate 1, and the protective mechanism comprises a connecting part, a pressure part and a limiting part.

[0025] See also Figure 2 The limiting part includes a frame and a rotating resistance plate 9 movably connected in the frame. The bottom of the frame is fixedly connected to the training board 1, and the rotating resistance plate 9 is also fixedly connected with a hook hole; the pressure part includes a mounting groove 12 opened on the training board 1 and a force-bearing plate 13, a pressure limiting plate 14 and a pressure limiting spring 15 arranged in the mounting groove 12. The side of the force-bearing plate 13 away from the opening of the mounting groove 12 is movably connected to two symmetrically arranged pressure limiting plates 14, one end of the pressure limiting spring 15 is welded to the pressure limiting plate 14, and the other end is welded to the force-bearing plate 13; the set pressure part can form a certain resistance to the limiting part through the connecting part. When the force on the fixed plate 2 is greater than the resistance generated by the pressure part, the fixed plate 2 rotates, so that the fixed plate 2 is flat on the training board 1, which facilitates the withdrawal of the device and reduces the impact of the device on bending training.

[0026] See also Figure 4 The connecting part includes a pulling hook 10 and a pulling rope 11, one end of the pulling rope 11 is threadedly connected to the force-bearing plate 13, and the other end is threadedly connected to the pulling hook 10 that passes through the bent hook hole; the pressure limiting spring 15 forms an inclination angle with respect to the horizontal center line of the force-bearing plate 13, and the inclination angle is 45°; by forming a certain angle of the pressure limiting spring 15, the tension of the pressure limiting spring 15 can be at the front end of the force-bearing plate 13, thereby achieving the best elastic force obstruction effect and avoiding the situation where the force arm is too small and wastes elastic force.

[0027] See also Figure 2, a long strip of additional locking plate is also provided on the optional rotating block 3, one end of the additional locking plate is connected to the outer wall of the optional rotating block 3 by bolts, and the other end extends to the fixed plate 2 and is locked by bolts; through the additional locking plate, the connection between the fixed plate 2 and the optional rotating block 3 can be further supported and fixed, so as to achieve a good fixing effect, and the fixed plate 2 can be easily disassembled by the fixed plate 2 and the optional rotating block 3 that can be slidably connected, so as to facilitate the cleaning and replacement of the fixed plate 2.

[0028] Specifically, first, the bending plate 7 is pulled by the pulling rope 6 through the power mechanism, and the bending plate 7 is continuously bent. When it is bent to a suitable angle, the human body can be trained. However, people of different heights and different training effects have different bending states of the bending plate 7. In this way, when the bending plate 7 continues to be pulled and bent by force, the bending plate 7 is fixedly connected to the fixed plate 2, and the fixed plate 2 generates force. The fixed plate 2 is connected to the selected rotating block 3 by connecting the force-bearing slider 4 and the force-bearing slide groove 5. The selected rotating block 3 generates force. The selected rotating block 3 is fixedly connected to the limiting plate 8. The limiting plate 8 contacts the rotating resistance plate 9, and the rotating resistance plate 9 generates force. The rotating resistance plate 9 is connected to the pressure part in the installation groove 12 by pulling the hook 10 and the pulling rope 11. When the pressure on the rotating resistance plate 9 is greater than the elastic force generated by the pressure limiting spring 15, the pressure limiting plate 14 movably connected to the force plate 13 contracts, so that the pressure part falls out of the installation groove 12, ending the restriction on the selected rotating block 3.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A strength training device, comprising a training plate (1), a fixed plate (2), a pulling rope (6), a bending plate (7) and a power mechanism, wherein the training plate (1) is provided with a fixed plate (2) and a bending plate (7) integrally formed with the fixed plate (2), the bending plate (7) is provided with a pulling rope (6), one end of the pulling rope (6) is fixedly connected to the top of the bending plate (7), and the other end is connected to the power mechanism, the power mechanism comprises a slide groove provided inside the training plate (1) and a threaded slider adapted to the slide groove, a screw rod and a rotating handle connected to the screw rod are passed through the threaded slider, and the characteristics are: The fixed plate (2) is provided with a force-bearing slide groove (5) at one end facing the training plate (1); a selection rotating block (3) is fixedly connected to the training plate (1); the selection rotating block (3) is connected with a force-bearing sliding block (4) slidingly adapted to the force-bearing slide groove (5) at one end facing the fixed plate (2); a limiting plate (8) is fixedly connected to one side of the bottom of the limiting plate (3); a protective mechanism is provided on one side of the limiting plate (8) facing the training plate (1); the protective mechanism comprises a connecting portion, a pressure portion and a limiting portion.

2. A strength training device according to claim 1, characterized in that: The limiting part comprises a frame body and a rotating abutment plate (9) movably connected in the frame body, the bottom of the frame body is fixedly connected to the training board (1), and a hook hole is also fixedly connected to the rotating abutment plate (9).

3. A strength training device according to claim 2, characterized in that: The pressure part comprises a mounting groove (12) provided on the training plate (1), and a force-bearing plate (13), a pressure-limiting plate (14) and a pressure-limiting spring (15) arranged in the mounting groove (12); a side of the force-bearing plate (13) away from the opening of the mounting groove (12) is movably connected to two symmetrically arranged pressure-limiting plates (14); one end of the pressure-limiting spring (15) is welded to the pressure-limiting plate (14), and the other end is welded to the force-bearing plate (13).

4. A strength training device according to claim 3, characterized in that: The connecting portion comprises a pulling hook (10) and a pulling rope (11); one end of the pulling rope (11) is threadedly connected to the force-bearing plate (13), and the other end is threadedly connected to the pulling hook (10) that passes through the hook hole.

5. A strength training device according to claim 3, characterized in that: The pressure limiting spring (15) forms an inclination angle with respect to the horizontal center line of the force-bearing plate (13), and the inclination angle is 45°.

6. A strength training device according to claim 1, characterized in that: The selection rotating block (3) is also provided with an elongated additional locking plate, one end of which is connected to the outer wall of the selection rotating block (3) by means of bolts, and the other end of which extends to the fixed plate (2) and is locked by means of bolts.

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