Handheld wrist developer

Abstract

A mounting bin is formed in a rear handle, a rotating shaft is fixedly mounted in the mounting bin, a telescopic groove is formed in the mounting bin, a front handle is arranged on one side of the rear handle, a connecting block is fixedly arranged on the surface of the front handle, and a positioning groove is formed in the surface of the connecting block; the overturning rod is rotationally arranged in the mounting bin; the telescopic plate is slidably arranged in the telescopic groove, and a positioning block is fixedly arranged at one end of the telescopic plate; an adjusting groove is formed in the surface of the front handle, an adjusting screw rod is rotationally installed in the adjusting groove, an adjusting knob is fixedly installed at the end of the adjusting screw rod, a moving block is in threaded connection with the surface of the adjusting screw rod, and the moving block is fixedly connected with the end, away from the rear handle, of the extension spring. According to the hand-muscle developer, the situation that force is changed by manually and repeatedly adjusting the position of the palm on the hand shank of the hand-muscle developer can be avoided, and the risk that the hand-muscle developer flies out due to the fact that the hand-muscle developer falls off suddenly when used is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of fitness equipment, in particular to a handheld grip strengthener. Background Technique

[0002] Grip strengtheners belong to common fitness equipment, mainly used for exercising the grip strength of the hand and the muscle strength of the forearm, and can enhance the grasping ability, flexibility and coordination of the hand.

[0003] In the prior art, a grip strengthener is held by the palm to grasp two handles of the grip strengthener, applying pressure to the spring of the grip strengthener, and realizing the training of the grip through the rebounding force of the spring. When it is necessary to adjust the strength of the grip strengthener, usually the position of the palm on the handle of the grip strengthener is repeatedly adjusted manually to change the strength, which is rather inconvenient; in addition, during the use of the existing grip strengthener, once the handle of the grip strengthener falls off the palm, due to the instantaneous release of the elastic force of the stretched spring, there is also a risk that the grip strengthener is likely to fly out.

[0004] How to solve the above technical problems has become an urgent problem to be solved. Content of the Utility Model

[0005] The purpose of the utility model is to provide a handheld grip strengthener to solve the problems put forward in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A handheld grip strengthener, comprising:

[0008] A rear handle, an installation chamber is opened inside the rear handle, a rotating shaft is fixedly installed inside the installation chamber, a telescopic groove is opened inside the installation chamber, a front handle is arranged on one side of the rear handle, a connecting block is fixedly arranged on the surface of the front handle, a positioning groove is opened on the surface of the connecting block, and a stretching spring is connected between the front handle and the rear handle;

[0009] A flipping rod, the flipping rod is rotatably arranged inside the installation chamber, a first docking groove is opened at one end of the flipping rod, and connecting grooves are opened on both sides of the first docking groove;

[0010] A telescopic plate, the telescopic plate is slidably arranged inside the telescopic groove, a positioning block is fixedly arranged at one end of the telescopic plate, second docking grooves are opened on both sides of the telescopic plate, and connecting columns are arranged inside the second docking grooves;

[0011] An adjusting groove is opened on the surface of the front handle, an adjusting screw is rotatably installed inside the adjusting groove, an adjusting knob is fixedly installed at the end of the adjusting screw, a moving block is screwed on the surface of the adjusting screw, and the moving block is fixedly connected with the end of the stretching spring away from the rear handle.

[0012] Preferably, the telescopic groove is opened at one end of the installation bin close to the tension spring, and one end of the telescopic groove penetrates through one side of the rear handle close to the front handle.

[0013] Preferably, the connecting block is arranged on one side of the front handle close to the rear handle. The front handle is rotatably connected to the rear handle through the connecting block. A plurality of positioning grooves are formed on the surface of the connecting block, and the positioning grooves are arranged corresponding to the telescopic grooves.

[0014] Preferably, a rotating hole is formed on the surface of the flipping rod. The flipping rod is rotatably installed on the surface of the rotating shaft through the rotating hole. A pressing block is fixedly installed on the surface of the flipping rod, and the pressing block extends to one side of the rear handle away from the front handle.

[0015] Preferably, the first docking groove is opened at one end of the flipping rod close to the rotating shaft, and the connecting groove penetrates through both sides of the first docking groove.

[0016] Preferably, the telescopic plate is clamped inside the first docking groove through the second docking groove, and the connecting column is slidably arranged inside the connecting groove.

[0017] Preferably, the positioning block is arranged at one end of the telescopic plate close to the positioning groove, and a return spring is arranged between one end of the telescopic plate away from the positioning groove and the inner wall of the telescopic groove.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0019] In the present utility model, by rotating the adjusting knob to drive the adjusting screw to rotate, the adjusting screw drives the moving block to move inside the adjusting groove through the thread. When the moving block moves in the direction away from the rear handle, the strength of the gripper increases. When the moving block moves in the direction close to the rear handle, the strength of the gripper decreases. Thus, the strength of the grip can be more accurately controlled according to the position of the moving block, avoiding changing the strength by repeatedly adjusting the position of the palm on the handle of the gripper manually. By setting the positioning block and the positioning groove, in the present utility model, when the gripper is separated from the user's hand, the pressing block loses the pressure of the palm, and the resilience of the return spring drives the telescopic plate to move in the direction close to the connecting block, so that the positioning block is inserted into the positioning groove, thereby preventing the rear handle and the front handle from separating, reducing the problem that the elastic force of the tension spring is instantaneously released after the gripper slips out of the hand, and reducing the risk of the gripper flying out. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is the overall structural schematic diagram of the present utility model;

[0021] Figure 2 is the sectional schematic diagram of the present utility model;

[0022] Figure 3 is the present utility model Figure 2Enlarged schematic view at position A in the middle;

[0023] Figure 4 Schematic diagram of the flip rod structure of the present utility model;

[0024] Figure 5 Schematic diagram of the telescopic plate structure of the present utility model. Detailed implementation manners

[0025] In order to more clearly illustrate the overall concept of the present utility model, the following will be described in detail by way of examples in combination with the accompanying drawings of the specification.

[0026] Please refer to the attached Figure 1 to the attached Figure 5 As shown, the present utility model provides a handheld grip strength exerciser, including:

[0027] A rear handle 1, an installation cavity 11 is opened inside the rear handle 1, a rotating shaft 12 is fixedly installed inside the installation cavity 11, a telescopic groove 13 is opened inside the installation cavity 11, a front handle 2 is arranged on one side of the rear handle 1, an adjustment groove 21 is opened on the surface of the front handle 2, an adjustment screw 23 is rotatably installed inside the adjustment groove 21, an adjustment knob 22 is fixedly installed at the end of the adjustment screw 23, a moving block 3 is screwed on the surface of the adjustment screw 23, the moving block 3 is fixedly connected to one end of a tension spring 4 away from the rear handle 1, a connecting block 24 is fixedly arranged on the surface of the front handle 2, a positioning groove 25 is opened on the surface of the connecting block 24, the connecting block 24 is arranged on the side of the front handle 2 close to the rear handle 1, the front handle 2 is rotatably connected to the rear handle 1 through the connecting block 24, multiple groups of positioning grooves 25 are opened on the surface of the connecting block 24, the positioning grooves 25 are arranged corresponding to the telescopic grooves 13, a tension spring 4 is connected between the front handle 2 and the rear handle 1, the telescopic groove 13 is opened at one end of the installation cavity 11 close to the tension spring 4, and one end of the telescopic groove 13 penetrates through the side of the rear handle 1 close to the front handle 2;

[0028] A flip rod 5, the flip rod 5 is rotatably arranged inside the installation cavity 11, a rotating hole 52 is opened on the surface of the flip rod 5, the flip rod 5 is rotatably installed on the surface of the rotating shaft 12 through the rotating hole 52, a pressing block 51 is fixedly installed on the surface of the flip rod 5, the pressing block 51 extends to the side of the rear handle 1 away from the front handle 2, a first docking groove 53 is opened at one end of the flip rod 5, connecting grooves 54 are opened on both sides of the first docking groove 53, the first docking groove 53 is opened at one end of the flip rod 5 close to the rotating shaft 12, and the connecting grooves 54 penetrate through both sides of the first docking groove 53;

[0029] The telescopic plate 6 is slidably arranged inside the telescopic groove 13. A positioning block 61 is fixedly arranged at one end of the telescopic plate 6. The positioning block 61 is arranged at one end of the telescopic plate 6 close to the positioning groove 25. A return spring 64 is arranged between the end of the telescopic plate 6 far from the positioning groove 25 and the inner wall of the telescopic groove 13. Second docking grooves 62 are formed on both sides of the telescopic plate 6. Connecting columns 63 are arranged inside the second docking grooves 62. The telescopic plate 6 is clamped inside the first docking groove 53 through the second docking grooves 62. The connecting columns 63 are slidably arranged inside the connecting grooves 54.

[0030] For a hand-held grip strength exerciser proposed by the present utility model, during use, the user holds the rear handle 1 and the front handle 2 with the palm to apply force to the tension spring 4, so as to achieve the purpose of exercising the grip strength. When it is necessary to adjust the strength of the grip strength exerciser, the adjustment knob 22 is rotated to drive the adjustment screw 23 to rotate. The adjustment screw 23 drives the moving block 3 to move inside the adjustment groove 21 through the thread. When the moving block 3 moves away from the rear handle 1, the strength of the grip strength exerciser increases. When the moving block 3 moves closer to the rear handle 1, the strength of the grip strength exerciser decreases. Thus, the strength of the grip can be more precisely controlled according to the position of the moving block 3.

[0031] By arranging the turning rod 5 and the telescopic plate 6, when the user holds the rear handle 1 and the front handle 2, the palm of the user presses on the surface of the pressing block 51, driving the turning rod 5 to rotate inside the installation bin 11. The turning rod 5 drives the telescopic plate 6 to move away from the connecting block 24 through the connecting column 63, so that the positioning block 61 disengages from the inside of the positioning groove 25. At this time, the grip strength exerciser can be freely clenched or loosened. During use, when the grip strength exerciser breaks away from the user's hand, the pressing block 51 loses the pressure of the palm, and the resilience of the return spring 64 drives the telescopic plate 6 to move closer to the connecting block 24, making the positioning block 61 snap into the inside of the positioning groove 25, thus preventing the rear handle 1 and the front handle 2 from separating, and reducing the problem that the elastic force of the tension spring 4 is instantaneously released after the grip strength exerciser slips out of the hand.

[0032] Working principle of the utility model: A hand-held grip strength exerciser proposed by the utility model, when in use, the user holds the rear handle 1 and the front handle 2 with the palm to apply force to the stretching spring 4, so as to achieve the purpose of exercising grip strength. When it is necessary to adjust the strength of the grip strength exerciser, the adjusting knob 22 is rotated to drive the adjusting screw rod 23 to rotate. The adjusting screw rod 23 drives the moving block 3 to move inside the adjusting groove 21 through the thread. When the moving block 3 moves away from the rear handle 1, the strength of the grip strength exerciser increases. When the moving block 3 moves towards the rear handle 1, the strength of the grip strength exerciser decreases. When the user holds the rear handle 1 and the front handle 2, the palm of the user presses on the surface of the pressing block 51, driving the flipping rod 5 to rotate inside the installation bin 11. The flipping rod 5 drives the telescopic plate 6 to move away from the connecting block 24 through the connecting column 63, so that the positioning block 61 disengages from the inside of the positioning groove 25. At this time, the grip strength exerciser can be freely clenched or loosened. When the grip strength exerciser is separated from the user's hand, the pressing block 51 loses the pressure of the palm, and the resilience of the return spring 64 drives the telescopic plate 6 to move towards the connecting block 24, so that the positioning block 61 is inserted into the inside of the positioning groove 25, thus preventing the rear handle 1 and the front handle 2 from separating.

[0033] The utility model aims to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the utility model shall be included within the protection scope of the utility model.

Claims

1. A handheld hand gripper, characterized in that: include: A rear handle (1), wherein a mounting chamber (11) is provided inside the rear handle (1), a rotating shaft (12) is fixedly installed inside the mounting chamber (11), a telescopic slot (13) is provided inside the mounting chamber (11), a front handle (2) is provided on one side of the rear handle (1), a connecting block (24) is fixedly provided on the surface of the front handle (2), a positioning slot (25) is provided on the surface of the connecting block (24), and a tension spring (4) is connected between the front handle (2) and the rear handle (1); A flip rod (5), the flip rod (5) being rotatably arranged inside the installation bin (11), one end of the flip rod (5) being provided with a first docking groove (53), and both sides of the first docking groove (53) being provided with connecting grooves (54); A telescopic plate (6), the telescopic plate (6) being slidably arranged inside the telescopic groove (13), a positioning block (61) being fixedly arranged at one end of the telescopic plate (6), second docking grooves (62) being opened on both sides of the telescopic plate (6), and a connecting column (63) being arranged inside the second docking groove (62); The surface of the front handle (2) is provided with an adjustment groove (21), an adjustment screw (23) is rotatably mounted inside the adjustment groove (21), an adjustment knob (22) is fixedly mounted on the end of the adjustment screw (23), a moving block (3) is screwed on the surface of the adjustment screw (23), and the moving block (3) is fixedly connected to an end of the tension spring (4) away from the rear handle (1).

2. The handheld handgrip according to claim 1, characterized in that: The telescopic slot (13) is formed at one end of the installation compartment (11) close to the tension spring (4), and one end of the telescopic slot (13) passes through a side of the rear handle (1) close to the front handle (2).

3. The handheld handgrip according to claim 2, characterized in that: The connecting block (24) is arranged on a side of the front handle (2) close to the rear handle (1); the front handle (2) is rotatably connected to the rear handle (1) via the connecting block (24); a plurality of groups of positioning grooves (25) are provided on the surface of the connecting block (24); and the positioning grooves (25) are arranged corresponding to the telescopic grooves (13).

4. The handheld hand gripper according to claim 3, characterized in that: A rotating hole (52) is provided on the surface of the flip rod (5), and the flip rod (5) is rotatably mounted on the surface of the rotating shaft (12) through the rotating hole (52). A pressing block (51) is fixedly mounted on the surface of the flip rod (5), and the pressing block (51) extends to a side of the rear handle (1) away from the front handle (2).

5. The handheld handgrip according to claim 4, characterized in that: The first docking groove (53) is formed at one end of the flip rod (5) close to the rotating shaft (12), and the connecting groove (54) runs through both sides of the first docking groove (53).

6. The handheld handgrip according to claim 5, characterized in that: The telescopic plate (6) is clamped inside the first docking groove (53) through the second docking groove (62), and the connecting column (63) is slidably arranged inside the connecting groove (54).

7. The handheld handgrip strengthener according to claim 6, characterized in that: The positioning block (61) is arranged at one end of the telescopic plate (6) close to the positioning groove (25), and a return spring (64) is arranged between one end of the telescopic plate (6) away from the positioning groove (25) and the inner wall of the telescopic groove (13).

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