Pull-up training device for physical exercise

Abstract

The invention relates to the field of physical training instruments, in particular to a physical exercise pull-up training device which comprises a lifting box, a through hole is formed in the top of the lifting box in a penetrating mode, and sliding grooves are formed in the top and the bottom of the lifting box; the training mechanism comprises two groups of fluted discs, a threaded pull rod and a toothed rod, the two groups of fluted discs are arranged in a mirror image manner and are rotatably connected in the lifting box, the threaded pull rod is movably connected with the fluted discs and is slidably connected in the sliding groove of the lifting box, and the outer wall of the threaded pull rod is in threaded connection with a handle. The toothed bar is in sliding connection with the interior of the through hole of the lifting box, the toothed bar is meshed with the two sets of fluted discs, and limiting bolts are arranged at the two ends of the toothed bar; through the lifting box and the training mechanism, common trainees can train according to own body conditions, and meanwhile, beginners can conveniently and specially train the upper limb strength.

Description

Technical Field

[0001] The present invention relates to the field of physical training equipment, and in particular to a pull-up training device for physical exercise. Background Art

[0002] At present, pull-up is one of the test items in the physical education entrance examination for high school and the physical education examination for high school students. It mainly tests the development level of upper limb muscle strength. It is an examination item for male upper limb strength and is a hanging strength exercise that overcomes one's own gravity with one's own strength. It is the most basic method to exercise the back and is also one of the important reference standards and items to measure the physical fitness of men. Pull-up requires a man to have a certain grip strength, upper limb strength and shoulder girdle strength, and this strength must be able to overcome his own weight to complete one. Pull-up plays an important role in developing upper limb hanging strength, shoulder girdle strength and grip strength. It calculates the score based on the number of times completed according to the action specifications. The more times one does, the better the score. Therefore, it is a strength endurance item.

[0003] Pull-up has now become a relatively common physical fitness test and assessment standard. When beginners come into contact with it, they may often be unable to complete a standard pull-up due to being overweight or lacking upper limb strength. In this case, due to the incomplete action, the muscle groups that need to exert force are not fully exercised. Therefore, during the initial training, conventional training devices cannot achieve good training effects on beginners, and training devices that focus on exercising upper limb strength cannot allow users to complete pull-up training according to their own conditions. Summary of the Invention

[0004] The purpose of this part is to outline some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. In this part, as well as in the abstract and title of the present application, some simplifications or omissions may be made to avoid obscuring the purpose of this part, the abstract and the title. However, such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In view of the above and / or problems existing in the prior art, the present invention is proposed.

[0006] Therefore, the first technical problem to be solved by the present invention is that conventional training devices cannot achieve good training effects on beginners, and training devices that focus on exercising upper limb strength cannot allow users to complete pull-up training according to their own conditions.

[0007] To solve the above technical problems, the present invention provides the following technical solutions: A pull-up training device for physical exercise, including a lifting box, a through hole is provided through the top of the lifting box, and sliding grooves are provided at both the top and bottom of the lifting box; a training mechanism, the training mechanism includes a toothed disc, a threaded pull rod and a toothed rod, two groups of toothed discs are provided, the two groups of toothed discs are arranged in a mirror image, both groups of toothed discs are rotatably connected inside the lifting box, the threaded pull rod is movably connected to the toothed disc, the threaded pull rod is slidably connected inside the sliding groove of the lifting box, a handle is threadedly connected to the outer wall of the threaded pull rod, the toothed rod is slidably connected inside the through hole of the lifting box, the toothed rod meshes with the two groups of toothed discs, and limit bolts are provided at both ends of the toothed rod.

[0008] As a preferred solution of the pull-up training device for physical exercise according to the present invention, wherein: a chuck is provided on the outer wall of the toothed disc, a threaded rotating groove is provided through the outer wall of the chuck, the threaded pull rod is threadedly connected inside the threaded rotating groove, and a fixed rotating roller is fixedly connected to the axis of the other end of the chuck on the outer wall of the toothed disc, and the toothed disc is rotatably connected to the lifting box through a bearing.

[0009] As a preferred solution of the pull-up training device for physical exercise according to the present invention, wherein: tooth grooves are provided at the edge of the outer wall of the toothed disc and in the middle of the outer wall of the toothed rod, the toothed rod is in rolling connection with the two groups of toothed discs, threaded grooves are provided at the top and bottom of the toothed rod, limit bolts are movably connected near the top and bottom of the toothed rod, and a hook is connected to the bottom of the outer wall of the toothed rod.

[0010] As a preferred solution of the pull-up training device for physical exercise according to the present invention, wherein: a mounting bracket is fixedly connected to the outer wall of the lifting box.

[0011] The first beneficial effect of the present invention: Through the lifting box and the training mechanism, ordinary training personnel can train according to their own physical conditions, and at the same time, beginners can also conveniently conduct special training on upper limb strength. Description of the Drawings

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to these drawings. Among them:

[0013] Figure 1 It is a schematic bottom view structure diagram of the whole in a pull-up training device for physical exercise provided by the present invention;

[0014] Figure 2Schematic top view structure diagram of the overall pull-up training device provided by the present invention;

[0015] Figure 3 Schematic structure diagram of the training mechanism of the pull-up training device provided by the present invention;

[0016] Figure 4 Schematic structure diagram of the gear disk in the pull-up training device provided by the present invention;

[0017] Figure 5 Schematic structure diagram of the rack in the pull-up training device provided by the present invention;

[0018] Figure 6 Schematic structure diagram of the threaded tie rod in the pull-up training device provided by the present invention;

[0019] Figure 7 Schematic structure diagram of the handle in the pull-up training device provided by the present invention;

[0020] Figure 8 Schematic structure diagram when the whole of the pull-up training device provided by the present invention is connected to the mounting bracket. Detailed implementation manners

[0021] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following will describe the detailed implementation manners of the present invention with reference to the accompanying drawings of the specification.

[0022] In the following description, many specific details are set forth to facilitate a thorough understanding of the present invention. However, the present invention may be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0023] Secondly, the present invention will be described in detail with reference to the schematic diagrams. When describing the embodiments of the present invention in detail, for the sake of clarity, the cross-sectional views showing the device structure will be enlarged locally out of the general scale, and the schematic diagrams are only examples and should not limit the scope of protection of the present invention herein. In addition, in actual production, three-dimensional spatial dimensions including length, width and depth should be included.

[0024] Furthermore, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure or characteristic that can be included in at least one implementation manner of the present invention. The "in one embodiment" appearing in different places in this specification does not all refer to the same embodiment, nor is it a separate or alternative embodiment that excludes other embodiments.

[0025] Embodiment 1

[0026] Referring to Figures 1 to 8 , this embodiment provides a pull-up training device for physical exercise, which includes a lifting box 100. A through hole is formed through the top of the lifting box 100, and sliding grooves 101 are formed at both the top and the bottom of the lifting box 100; a training mechanism 200, the training mechanism 200 includes a gear disk 201, a threaded pull rod 202 and a gear rod 203. There are two groups of gear disks 201, and the two groups of gear disks 201 are arranged in a mirror image. Both groups of gear disks 201 are rotatably connected inside the lifting box 100. The threaded pull rod 202 is movably connected to the gear disk 201. The threaded pull rod 202 is slidably connected inside the sliding groove 101 of the lifting box 100. A handle 202a is threadedly connected to the outer wall of the threaded pull rod 202. The gear rod 203 is slidably connected inside the through hole of the lifting box 100. The gear rod 203 meshes with the two groups of gear disks 201. Limit bolts 204 are arranged at both ends of the gear rod 203.

[0027] A chuck 201a is arranged on the outer wall of the gear disk 201. A threaded rotation groove 201a-1 is formed through the outer wall of the chuck 201a. The threaded pull rod 202 is threadedly connected inside the threaded rotation groove 201a-1. A fixed rotating roller 201b is fixedly connected to the axis of the other end of the chuck 201a on the outer wall of the gear disk 201. The gear disk 201 is rotatably connected to the lifting box 100 through a bearing; when the gear rod 203 slides inside the through hole of the lifting box 100, since the gear rod 203 is in rolling connection with the gear disk 201, the two groups of gear disks 201 are driven to rotate. By the rotation of the gear disk 201, the inclination angle of the threaded pull rod 202 is changed, and the position of the gear rod 203 is fixed by the two limit bolts 204. By the change of the inclination angle of the threaded pull rod 202 and the cooperation with the handle 202a, the holding width and holding height of the training personnel during training are determined, so that ordinary training personnel can adjust according to their own physical conditions.

[0028] Tooth grooves 203a are arranged at the edge of the outer wall of the gear disk 201 and in the middle of the outer wall of the gear rod 203. The gear rod 203 is in rolling connection with the two groups of gear disks 201. Threaded grooves 203b are formed at both the top and the bottom of the gear rod 203. Limit bolts 204 are movably connected near the top and the bottom of the gear rod 203. A hook 203c is connected to the bottom of the outer wall of the gear rod 203;

[0029] When beginners who are unable to complete standard chin-ups independently perform upper body strength training, rotate the limit bolt 204 at the top of the toothed rod 203 so that the limit bolt 204 is disengaged from the lifting box 100. At this time, due to the change in the limit distance of the limit bolt 204 at the top of the toothed rod 203, the toothed rod 203 will move downward due to its own weight. Beginners can overcome its weight through the threaded pull rod 202 to complete the pushing and pulling actions to complete the upper body strength training, and the limit bolt 204 at the bottom of the toothed rod 203 can limit the extreme distance of the pushing and pulling actions to prevent accidents caused by the equipment slipping out of the hand during training.

[0030] Furthermore, during the above-mentioned upper body training process, since the rotation of the threaded pull rod 202 is a lever movement, the trainer can adjust the position of the handle 202a to train in different postures, and change the lever arm to reduce or increase the training intensity. When the trained posture does not match the training intensity, the training intensity of the trained posture can be changed by adding or reducing the load to the hook 203c.

[0031] The outer wall of the lifting box 100 is fixedly connected with a mounting bracket 300.

[0032] Working principle: When the trainer performs chin-up training, adjust the height of the toothed rod 203 inside the through groove according to his own shoulder width and height. By changing the height of the toothed rod 203, control the rotation of the toothed disc 201, and then change the inclination angle of the threaded pull rod 202. By changing the inclination angle of the threaded pull rod 202 and adjusting the position of the handle 202a, the device can be adjusted to a state suitable for the trainer; when beginners need to train their upper body strength, by changing the details of the limit bolt 204 at the top of the toothed rod 203, the toothed rod 203 can be changed to a slidable state, and the upper body strength training can be completed by overcoming the weight of the toothed rod 203 itself and the load through the pushing and pulling actions.

[0033] Importantly, it should be noted that the construction and arrangement of the present application shown in multiple different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who refer to this disclosure should easily understand that many modifications are possible without materially departing from the novel teachings and advantages of the subject matter described in this application (e.g., changes in the dimensions, scales, structures, shapes and proportions of various elements, as well as parameter values (such as temperature, pressure, etc.), installation arrangements, use of materials, colors, orientations, etc.). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature, number or position of discrete elements may be altered or changed. Accordingly, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means-plus-function" clause is intended to cover the structures that perform the recited function herein, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the present invention is not limited to specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0034] In addition, in order to provide a concise description of the exemplary embodiments, all features of the actual embodiments may not be described (i.e., those features that are not relevant to the currently contemplated best mode of carrying out the present invention or those features that are not relevant to the implementation of the present invention).

[0035] It should be understood that in the development of any actual implementation, as in any engineering or design project, numerous specific implementation decisions may be made. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, without undue experimentation, such development efforts will be a routine task of design, manufacturing and production.

[0036] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention may be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A pull-up training device for physical exercise, characterized in that: It includes a lifting box (100), a through hole is penetrated through the top of the lifting box (100), and sliding grooves (101) are provided at both the top and the bottom of the lifting box (100); A training mechanism (200), the training mechanism (200) includes a toothed disc (201), a threaded pull rod (202) and a toothed rod (203). There are two groups of the toothed discs (201), and the two groups of toothed discs (201) are arranged in a mirror image. Both groups of toothed discs (201) are rotatably connected inside the lifting box (100). The threaded pull rod (202) is movably connected to the toothed disc (201). The threaded pull rod (202) is slidably connected inside the sliding groove (101) of the lifting box (100). A handle (202a) is threadedly connected to the outer wall of the threaded pull rod (202). The toothed rod (203) is slidably connected inside the through hole of the lifting box (100). The toothed rod (203) meshes with the two groups of toothed discs (201). Limit bolts (204) are provided at both ends of the toothed rod (203).

2. The pull-up training device for physical exercise according to claim 1, characterized in that: A chuck (201a) is provided on the outer wall of the toothed disc (201). A threaded rotation groove (201a-1) is penetrated through the outer wall of the chuck (201a). The threaded pull rod (202) is threadedly connected inside the threaded rotation groove (201a-1). A fixed roller (201b) is fixedly connected to the axis of the other end of the chuck (201a) on the outer wall of the toothed disc (201). The toothed disc (201) is rotatably connected to the lifting box (100) through a bearing.

3. A pull-up training device for physical exercise according to claim 2, characterized in that: Tooth grooves (203a) are provided at the edge of the outer wall of the toothed disc (201) and in the middle of the outer wall of the toothed rod (203). The toothed rod (203) is in rolling connection with the two groups of toothed discs (201). Threaded grooves (203b) are provided at both the top and the bottom of the toothed rod (203). Limit bolts (204) are movably connected near the top and the bottom of the toothed rod (203). A hook (203c) is connected to the bottom of the outer wall of the toothed rod (203).

4. A pull-up training device for physical exercise according to claim 3, characterized in that: An installation frame (300) is fixedly connected to the outer wall of the lifting box (100).

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