Grip strength training device suitable for low-grade students

Abstract

The utility model relates to the technical field of grip strength training devices, and discloses a grip strength training device suitable for lower grade students, the grip strength training device comprises a supporting bent rod, a rotating grip, a fixed grip and a spring, one side of the bottom of the supporting bent rod is rotatably connected with the rotating grip, and the spring is rotatably connected between the top of the supporting bent rod and the top of the rotating grip. The bottom of the rotating grip is rotationally connected with a fixed grip, a plurality of limiting insertion holes are formed in the outer side of a rotating hole in the top of the fixed grip at equal intervals, and a positioning ring is fixed to the portion, on the outer side of one limiting insertion hole, of the side wall of the supporting bent rod. According to the grip strength training device, the distance between the rotating grip and the fixed grip is adjusted, students can conveniently and correctly exert force during exercise, the problem that an existing grip strength training device is inconvenient to hold by hands of different sizes is solved, the application range of the grip strength training device is widened, and meanwhile the training effect is guaranteed.

Description

Technical Field

[0001] This utility model application relates to the field of grip strength training devices, specifically a grip strength training device suitable for lower grade students. Background Technology

[0002] A hand grip strengthener is a small fitness device that exercises the wrists and arms. It can be used in different ways, such as single-handed, double-handed, overhand, underhand, and double-clamping. It is small and lightweight, easy to carry, and can be used without any restrictions. Users can exercise their hand strength anytime, relieve fatigue, strengthen muscles, and improve blood circulation.

[0003] When lower grade students are doing hand strength training, there are significant differences in their development, and their hand sizes vary considerably. Traditional grip strength training devices are designed to fit the required grip width, which may prevent some students from fully gripping the device. This can affect the correct application of force during training and reduce the training effect. Summary of the Invention

[0004] To address the problem that existing grip strength trainers are inconvenient for hands of different sizes, this invention provides a grip strength trainer suitable for lower grade students, thus solving the aforementioned problem.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A grip strength trainer suitable for lower grade students includes a support rod, a rotating grip, a fixed grip, and a spring. The rotating grip is rotatably connected to one side of the bottom of the support rod. A spring is rotatably connected between the top of the support rod and the top of the rotating grip. The fixed grip is rotatably connected to the bottom of the rotating grip. Several limiting holes are equidistantly opened on the outer side of the rotating hole at the top of the fixed grip. A positioning ring is fixed on the side wall of the support rod outside one of the limiting holes. A limiting screw is inserted inside the positioning ring. One end of the limiting screw passes through the fixed grip and is threadedly connected to the inside of the support rod.

[0007] Furthermore, both the rotating grip and the fixed grip have several anti-slip protrusions fixed at equal intervals on their outer sides, and an auxiliary strap is fixed on the rotating grip outside the anti-slip protrusions.

[0008] Furthermore, a movable sleeve is detachably rotatably connected to one end of the spring near the rotating grip, and an adjusting screw is threadedly fitted to the bottom of the movable sleeve. The adjusting screw is rotatably connected to the top of the rotating grip.

[0009] Further, the spring top end is sleeved on the fixed bolt, the fixed bolt is inserted on the support bent rod top, and the fixed bolt penetrates to one end of the support bent rod outside and is sleeved with a nut in a threaded mode.

[0010] Further, the spring is inserted on the mobile sleeve block top near one end of the support bent rod, and the spring penetrates to one end of the mobile sleeve block top outside and is sleeved with a limiting connector in a threaded mode.

[0011] Further, the adjusting screw rod is fixed with an adjusting knob at one end extending to the rotating handle outside, and an indicating mark is arranged on the rotating handle side wall of the adjusting screw rod side.

[0012] Further, the limiting connector is arranged in a transversely placed "J" shape, and a threaded hole matched with the limiting connector is formed on one end of the spring near the mobile sleeve block.

[0013] Compared with the prior art, the present application has the following beneficial effects:

[0014] 1. In the present application, the adjustable rotating handle can adjust the distance between the rotating handle and the fixed handle according to the size of the user's hand during use, which facilitates the correct force exertion of students during exercise, solves the problem that the existing grip strength trainer is inconvenient for different size hand holding, improves the application range of the grip strength trainer, and ensures the training effect.

[0015] 2. In the present application, the detachable spring can be individually removed and replaced after relaxation during use, so that the spring can maintain the restoring force for a long time, and the strength of the spring during stretching can be adjusted according to the training intensity, which further improves the training effect of the grip strength trainer during use. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0017] Figure 1 is a front view of the structure of the grip strength trainer according to an embodiment of the present application;

[0018] Figure 2 is Figure 1 the bottom view of the structure of the grip strength trainer in the embodiment shown in the figure;

[0019] Figure 3 is Figure 1The schematic view of the split structure of the grip strength trainer in the embodiment shown;

[0020] Figure 4 is Figure 1 The schematic view of the structure of the spring in the embodiment shown.

[0021] The meanings of the reference numerals in the drawings: 1, support bent rod; 2, rotating handle; 3, fixed handle; 4, anti-skid protrusion; 5, auxiliary belt; 6, spring; 7, moving sleeve block; 8, adjusting screw; 9, adjusting knob; 10, limiting insertion hole; 12, positioning ring; 13, limiting screw; 14, fixing bolt; 15, limiting joint. DETAILED DESCRIPTION

[0022] In order to make the application purposes, features and advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the embodiments described below are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0023] Referring to Figures 1 to 4 A grip strength trainer suitable for low-grade students, comprising a support bent rod 1, a rotating handle 2, a fixed handle 3 and a spring 6, the support bent rod 1 is rotatably connected with the rotating handle 2 at one side of the bottom, the spring 6 is rotatably connected between the top of the support bent rod 1 and the top of the rotating handle 2, the rotating handle 2 is rotatably connected with the fixed handle 3 at the bottom, and a plurality of limiting insertion holes 11 are equidistantly arranged outside the rotating hole of the top of the fixed handle 3, wherein the side wall of the support bent rod 1 outside one of the limiting insertion holes 11 is fixed with a positioning ring 12, the limiting screw 13 is inserted into the inside of the positioning ring 12, one end of the limiting screw 13 penetrating through the fixed handle 3 is threadedly connected with the inside of the support bent rod 1, a plurality of anti-skid protrusions 4 are equidistantly fixed outside the rotating handle 2 and the fixed handle 3, and the auxiliary belt 5 is fixed to the rotating handle 2 outside the anti-skid protrusions 4.

[0024] Specifically, when the distance between the rotating handle 2 and the fixed handle 3 needs to be adjusted, the limiting screw 13 is rotated and extracted from the inside of the limiting insertion hole 11, and then the fixed handle 3 is adjusted to the distance from the rotating handle 2, after the adjustment is completed, the limiting screw 13 is inserted into the corresponding limiting insertion hole 11, and then the fixed handle 3 is screwed, after the fixed handle 3 is fixed, during the training, the four fingers pass through the auxiliary belt 5 to hold the rotating handle 2 and the fixed handle 3, the rotating handle 2 and the fixed handle 3 are gripped tightly, the rotating handle 2 and the fixed handle 3 are rotated, the spring 6 is stretched, and the hand strength is exercised.

[0025] As an optimization scheme, the spring 6 is detachably connected with a moving sleeve block 7 near one end of the rotating handle 2, the moving sleeve block 7 is threadedly sleeved with an adjusting screw rod 8 at the bottom, one end of the adjusting screw rod 8 extending to the outside of the rotating handle 2 is fixed with an adjusting knob 9, an indicating mark 10 is arranged on the side wall of the rotating handle 2 at the side of the adjusting screw rod 8, the adjusting screw rod 8 is connected with the rotating handle 2 at the top through rotation, the top end of the spring 6 is rotationally sleeved with a fixing bolt 14, the fixing bolt 14 is inserted into the top of the supporting bent rod 1, the fixing bolt 14 is threadedly sleeved with a nut at one end penetrating to the outside of the supporting bent rod 1, the spring 6 is inserted into the top of the moving sleeve block 7 near one end of the supporting bent rod 1, the spring 6 is threadedly sleeved with a limiting connector 15 at one end penetrating to the outside of the top of the moving sleeve block 7, the limiting connector 15 is arranged in a transversely placed "J" shape, and a threaded hole matched with the limiting connector 15 is arranged at one end of the spring 6 near the moving sleeve block 7.

[0026] Specifically, when the tensile strength of the spring 6 needs to be adjusted, the adjusting knob 9 is rotated to drive the adjusting screw rod 8 to rotate, and under the driving of the thread, the moving sleeve block 7 moves inside the rotating handle 2 to stretch the spring 6, so that the stretching degree of the spring 6 can be adjusted, when the spring 6 needs to be replaced alone, the limiting connector 15 and the fixing bolt 14 are screwed out from both ends of the spring 6, so that the spring 6 can be taken off from the supporting bent rod 1 and the rotating handle 2, after replacement, the spring 6 is passed through the moving sleeve block 7 at the bottom, and the limiting connector 15 is screwed to the bottom end of the spring 6, the top of the spring 6 is arranged inside the top of the supporting bent rod 1, and the fixing bolt 14 is passed through the supporting bent rod 1 and the top of the spring 6 and is fixed by the nut.

[0027] It is apparent for those skilled in the art that the present application is not limited to the details of the foregoing exemplary embodiments, and the present application can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the foregoing description, and all changes falling within the meaning and range of equivalency of the essential elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be considered as limiting the claims involved.

[0028] The foregoing is only to explain the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements for some technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A grip strength training device suitable for lower grade students, characterized in that: The device includes a support bend (1), a rotating handle (2), a fixed handle (3), and a spring (6). The rotating handle (2) is rotatably connected to one side of the bottom of the support bend (1). The spring (6) is rotatably connected between the top of the support bend (1) and the top of the rotating handle (2). The fixed handle (3) is rotatably connected to the bottom of the rotating handle (2). Several limiting holes (11) are equidistantly opened on the outer side of the rotating hole at the top of the fixed handle (3). A positioning ring (12) is fixed on the side wall of the support bend (1) outside one of the limiting holes (11). A limiting screw (13) is inserted inside the positioning ring (12). The limiting screw (13) passes through one end of the fixed handle (3) and is threaded to the inside of the support bend (1).

2. The grip strength training device for lower grade students according to claim 1, characterized in that: Both the rotating grip (2) and the fixed grip (3) have several anti-slip protrusions (4) fixed at equal intervals on their outer sides, and an auxiliary strap (5) is fixed on the rotating grip (2) on the outer side of the anti-slip protrusions (4).

3. The grip strength training device for lower grade students according to claim 1, characterized in that: The spring (6) is detachably rotatably connected to a movable sleeve (7) at one end near the rotating handle (2). An adjusting screw (8) is threaded onto the bottom of the movable sleeve (7). The adjusting screw (8) is rotatably connected to the top of the rotating handle (2).

4. The grip strength training device for lower grade students according to claim 1, characterized in that: The top of the spring (6) is rotatably sleeved on the fixing bolt (14), the fixing bolt (14) is inserted into the top of the support rod (1), and the fixing bolt (14) extends through to one end of the support rod (1) and is threaded with a nut.

5. The grip strength training device for lower grade students according to claim 1, characterized in that: The spring (6) is inserted at one end near the support rod (1) on the top of the movable sleeve block (7), and the spring (6) is threaded to the outer end of the top of the movable sleeve block (7) and connected to the limit joint (15).

6. The grip strength training device for lower grade students according to claim 3, characterized in that: An adjustment knob (9) is fixed at one end of the adjustment screw (8) extending to the outside of the rotating handle (2), and an indicator (10) is provided on the side wall of the rotating handle (2) on the side of the adjustment screw (8).

7. The grip strength training device for lower grade students according to claim 5, characterized in that: The limiting connector (15) is configured as a horizontally placed "J" shape, and the spring (6) has a threaded hole that mates with the limiting connector (15) at one end near the moving sleeve (7).

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