Spring-replaceable wrist developer

Abstract

The utility model discloses a spring replaceable type hand-muscle developer which comprises a main grab handle and an auxiliary grab handle, the auxiliary grab handle and the main grab handle are connected in a hinged mode through a rotating shaft, the rotating shaft divides the main grab handle and the auxiliary grab handle into a resistance area and a force application area, a spring is arranged in the resistance area, and the force application area is arranged in the force application area. The inclined upper end of the spring is detachably connected with the main grab handle through a first connecting piece, and the inclined lower end of the spring is detachably connected with the auxiliary grab handle through a second connecting piece. The original spring can be conveniently detached, and springs of different specifications are arranged for selective assembly, so that the grip value range of the hand-muscle developer extends to the smaller side and the larger side, and the requirements of people with smaller initial grip and people with larger grip are met to the maximum extent.

Description

Technical Field

[0001] The utility model relates to the technical field of sports fitness equipment, and more specifically to a spring-replaceable grip strengthener. Background Art

[0002] A grip strengthener is a small fitness equipment for exercising the strength of a person's wrist and arm. It is small, light, easy to carry, and not restricted by fixed time and space, so it is very popular.

[0003] Patent CN202320797244.1 discloses a new type of grip strengthener, which includes a grip strengthener handle, a grip strengthener rotating handle and a spring. The grip strengthener handle and the grip strengthener rotating handle are hinged together through a rotating shaft. The spring is arranged between the top of the grip strengthener handle and the top of the grip strengthener rotating handle. A connecting arm is arranged at the top of the grip strengthener rotating handle, and an adjustable moving block that can move and adjust its position is arranged on the connecting arm. One end of the spring is connected to the protrusion at the top of the handle, and the other end of the spring is connected to the adjustable moving block; a lead screw is arranged in the connecting arm, and the lead screw cooperates with the adjustable moving block. An adjusting cap for driving the lead screw to rotate is arranged at the end of the connecting arm; by adjusting the position of the adjustable moving block, the position of the other end of the spring is adjusted, and then the initial force value of the grip strengthener is adjusted.

[0004] Obviously, the biggest advantage of the above patent is that the grip force value can be adjusted. However, its disadvantages are also obvious. Once the grip strengthener leaves the factory, since the original spring cannot be disassembled and replaced, the grip force value of the grip strengthener is fixed within a range determined by the original spring, and there is no choice of more grip force value ranges, which cannot meet the needs of people with relatively small initial grip force and people who have exercised to a relatively large grip force. Summary of the Utility Model

[0005] The purpose of the utility model is to overcome the above defects of the prior art, and provide a spring-replaceable grip strengthener, aiming at facilitating the disassembly of the original spring, and then equipping with different specifications of springs for selection and assembly, so as to extend the grip force value range of the grip strengthener to both smaller and larger sides, and maximize the satisfaction of people with relatively small initial grip force and people who have exercised to a relatively large grip force.

[0006] To achieve the above purpose, the utility model is realized through the following technical solutions: A spring-replaceable grip strengthener includes a main grip handle and a sub-grip handle. The sub-grip handle is hinged to the main grip handle through a rotating shaft. The rotating shaft divides the upper and lower parts of the main grip handle and the sub-grip handle into a resistance area and a force-applying area. A spring is arranged in the resistance area. It is characterized in that the upper oblique end of the spring is detachably connected to the main grip handle through a first connecting piece, and the lower oblique end of the spring is detachably connected to the sub-grip handle through a second connecting piece.

[0007] The utility model aims to enable the original spring to be conveniently disassembled, and then be equipped with springs of different specifications for selective assembly, so as to extend the grip force value range of the grip strengthener to both smaller and larger sides, and to meet the needs of people with relatively small initial grip force and those who have exercised to a relatively large grip force to the greatest extent.

[0008] Preferably, the first connecting member includes a first connecting seat fixedly arranged on the main grip handle and integrally formed therewith. One end of the first connecting seat has a U-shaped open groove. A pair of stepped holes are oppositely arranged on the groove walls of the open groove. A bolt is implanted in the two stepped holes, and a nut is arranged on the head of the bolt. The upper oblique end of the spring is hooked on the rod section of the bolt exposed in the open groove.

[0009] As is well known, both ends of a spring have two hooks at the outlets. Therefore, it is necessary to consider convenient installation and disassembly, and also to consider effective locking during use to prevent disengagement. The spring is installed obliquely on the grip strengthener. After assembly, the distance always remains greater than the position between the outlets of the two hooks, so it is definitely impossible to disengage. Then, when designing the spring disassembly, it can be considered from two aspects. One is to draw out the pin shaft that restrains the spring from the side, and the other is to reduce the above-mentioned distance so that the hooks can be disengaged. This preferred embodiment adopts the former scheme, with the bolt and the nut, which can be drawn out and inserted from the side and locked.

[0010] Preferably, the second connecting member includes a second connecting seat fixedly arranged on the sub-grip handle and integrally formed therewith. A through hole is arranged at the center of the second connecting seat to allow the lower oblique end of the spring to be hooked.

[0011] In order to make the structure simple and light, the lower end of the spring is only hooked on the second connecting member. In practice, the second connecting seat can be a metal ring, which has low cost and high strength. When the upper end of the spring can be disassembled, the lower end is much more convenient, as long as the hook of the spring is disengaged from the through hole of the second connecting seat.

[0012] As an alternative to the above scheme, the second connecting member includes a second connecting seat movably arranged on the sub-grip handle and integrally formed therewith. A through hole is arranged at the center of the second connecting seat to allow the lower oblique end of the spring to be hooked.

[0013] A regulating nut integrally formed therewith is connected to the lower end of the second connecting seat. A second screw rod is screwed through the regulating nut. A second screw rod channel allowing the second screw rod to pass through is arranged on the sub-grip handle. A chute parallel to and communicating with the second screw rod channel is also arranged on the sub-grip handle. The second connecting seat is located in the chute.

[0014] A ring-shaped groove is provided at the free end of the second screw rod extending into the second screw rod channel. A limiting shaft straddles the upper notch of the ring-shaped groove. The limiting shaft is disposed through the secondary handle and is located beside the rotating shaft and arranged parallel to it. A regulating knob and a limiting ring are provided at the free end of the second screw rod extending outside the second screw rod channel. The regulating knob is located on the outer side and the limiting ring is located on the inner side. The limiting ring is fixed on the secondary handle.

[0015] Turn the regulating knob. Due to the double limitation of the limiting shaft and the limiting ring, the second screw rod rotates in the second screw rod channel, causing the adjusting nut to displace, and then driving the second connecting seat to move, so that the deformation of the spring changes, thereby realizing the function of adjusting the grip strength value.

[0016] As an alternative to the above solution, the first connecting member includes a first connecting seat movably disposed on the main handle and forming a split structure therewith. One end of the first connecting seat has an open groove in a U shape. A pair of stepped holes are provided in a through manner on the groove walls of the open groove. A first pin shaft with caps at both ends is implanted in the two stepped holes. The upper inclined end of the spring is hooked on the rod section of the first pin shaft exposed in the open groove.

[0017] The other end of the first connecting seat is connected with a first screw rod integrally formed therewith. A first screw rod channel allowing the first screw rod to pass through is provided on the main handle. An adjusting groove penetrating the wall thickness of the main handle and forming a cross intersection with the first screw rod channel is further provided on the main handle. An adjusting disk is implanted in the adjusting groove. A screw hole screwed with the first screw rod is provided at the center of the adjusting disk.

[0018] As is well known, both ends of a spring have two hooks at the outlets. Therefore, it is necessary to consider convenient installation and disassembly, and also to consider effective locking during use to prevent detachment. The spring is installed on the grip strength exerciser in an inclined manner. After assembly, the distance always remains greater than the position between the outlets of the two hooks, so it is definitely impossible to detach. Then, when designing the spring disassembly, it is considered from two aspects. One is to pull out the pin shaft restricting the spring from the side, and the other is to reduce the above-mentioned distance so that the hooks can be disengaged. This preferred solution adopts the latter. Rotate the adjusting disk to make the first screw rod rotate in the first screw rod channel. Since the adjusting groove limits the adjusting disk in position, the first screw rod slowly withdraws from the first screw rod channel as a whole, thereby reducing the position between the outlets of the two hooks of the spring. Finally, the spring is in a free state, enabling the upper end of the spring to be easily disassembled. During this process, the adjustment of the grip strength value range of the grip strength exerciser is also realized. When the first screw rod withdraws outward, the grip strength value becomes smaller, and when it moves inward, the grip strength value becomes larger. Among them, if the lower end of the spring is in the minimum gear and the first screw rod withdraws outward, the processing value of the grip strength exerciser can be reduced even smaller to meet the needs of people with relatively small initial grip strength.

[0019] Preferably, both sides of the adjusting disc extend out of the adjusting groove. When the adjusting disc extends to the outside, it is easier for human hands to touch, thus making it easier to operate, and realizing the disassembly and adjustment of the spring.

[0020] Preferably, the second connecting member includes a second connecting seat fixedly arranged on the secondary handle and integrally formed therewith, and a through hole is arranged at the center of the second connecting seat, allowing the inclined lower end of the spring to be hooked.

[0021] For the sake of simple and light structure, the lower end of the spring is only hooked on the second connecting member. In practice, the second connecting seat can be a metal ring, which has low cost and high strength. When the upper end of the spring can be disassembled, the lower end is much more convenient, as long as the hook of the spring disengages from the through hole of the second connecting seat.

[0022] As an alternative to the above solution, the second connecting member includes a second connecting seat movably arranged on the secondary handle and integrally formed therewith, and a through hole is arranged at the center of the second connecting seat, allowing the inclined lower end of the spring to be hooked.

[0023] A regulating nut is connected to the lower end of the second connecting seat and integrally formed therewith. A second screw rod is screwed through the regulating nut. A second screw rod passage allowing the second screw rod to pass through is arranged on the secondary handle. A sliding groove parallel and communicating with the second screw rod passage is also arranged on the secondary handle. The second connecting seat is located in the sliding groove.

[0024] An annular groove is arranged at the free end of the second screw rod extending into the second screw rod passage. A limiting shaft straddles the upper notch of the annular groove. The limiting shaft is arranged through the secondary handle and is located beside the rotating shaft and arranged parallel thereto. A regulating knob and a limiting ring are arranged at the free end of the second screw rod extending out of the second screw rod passage. The regulating knob is located on the outside and the limiting ring is located on the inside. The limiting ring is fixed on the secondary handle.

[0025] Beneficial effects: (1) The present utility model aims at making the original spring conveniently disassembled, and then equipping with springs of different specifications for selection and assembly, so as to extend the range of the grip force value of the gripper to both smaller and larger sides, and maximize the satisfaction of people with relatively small initial grip force and people who have exercised to relatively large grip force.

[0026] (2) Both the first connecting member and the second connecting member of the present utility model have the function of adjusting the grip force value of the gripper, so that the gripper has the attribute of bidirectional adjustment of the grip force value, which is a further supplement to the spring replacement, and extends the range of the grip force value of the gripper to both smaller and larger sides, and maximizes the satisfaction of people with relatively small initial grip force and people who have exercised to relatively large grip force. Description of the Drawings

[0027] Figure 1 is a schematic structural view of the present utility model;

[0028] Figure 2 is another schematic structural view of the present utility model;

[0029] Figure 3 is Figure 2 the left view of;

[0030] Figure 4 is Figure 3 the A-A sectional view of;

[0031] Figure 5 is a schematic structural view of a first connecting member and a second connecting member.

[0032] In the figure: 1 - main grip, 2 - sub-grip, 3 - rotating shaft, 4 - spring, 5 - first connecting seat, 6 - nut, 7 - bolt, 8 - second connecting seat, 9 - first pin shaft, 10 - first screw rod, 11 - adjusting disc, 12 - first screw rod channel, 13 - adjusting groove, 14 - adjusting nut, 15 - second screw rod, 16 - second screw rod channel, 17 - sliding groove, 18 - annular groove, 19 - limiting shaft, 20 - adjusting knob, 21 - limiting ring. Specific embodiments

[0033] In order to make the technical means, creative features and achieved purposes of the present utility model easy to understand, the present utility model is further described below in conjunction with specific embodiments.

[0034] Embodiment 1: As Figure 1 shown, a spring-replaceable grip strength exerciser includes a main grip 1 and a sub-grip 2. The sub-grip 2 is hingedly connected to the main grip 1 through a rotating shaft 3. The rotating shaft 3 divides the upper and lower parts of the main grip and the sub-grip into a resistance area and a force-applying area. A spring 4 is arranged in the resistance area. The upper oblique end of the spring 4 is detachably connected to the main grip through a first connecting member, and the lower oblique end of the spring is detachably connected to the sub-grip through a second connecting member.

[0035] The first connecting member includes a first connecting seat 5 fixedly arranged on the main grip 1 and integrally formed therewith. One end of the first connecting seat 5 has a U-shaped open slot. A pair of stepped holes are oppositely arranged on the slot wall of the open slot. A bolt 7 is implanted in the two stepped holes. A nut 6 is arranged on the head of the bolt 7. The upper oblique end of the spring 4 is hooked on the rod section of the bolt exposed in the open slot.

[0036] The second connecting member includes a second connecting seat 8 fixedly arranged on the sub-grip 2 and integrally formed therewith. A through hole allowing the lower oblique end of the spring 4 to be hooked is arranged at the center of the second connecting seat 8.

[0037] Embodiment 2: The second connecting member includes a second connecting seat 8 movably arranged on the secondary grip 2 and forming a split structure therewith. A through hole is provided at the center of the second connecting seat 8, allowing the lower inclined end of the spring 4 to be hooked.

[0038] The lower end of the second connecting seat 8 is connected with an adjusting nut 14 integrally formed therewith. A second screw 15 is screwed through the adjusting nut 14. A second screw passage 16 allowing the second screw 15 to pass through is provided on the secondary grip 2. A chute 17 parallel and communicating with the second screw passage 16 is also provided on the secondary grip 2. The second connecting seat 8 is located in the chute 17.

[0039] An annular groove 18 is provided at the free end of the second screw 15 extending into the second screw passage 16. A limiting shaft 19 is spanned across the upper notch of the annular groove 18. The limiting shaft 19 is disposed through the secondary grip 2. The limiting shaft 19 is located beside the rotating shaft 3 and arranged parallel thereto. An adjusting knob 20 and a limiting ring 21 are provided at the free end of the second screw 15 extending out of the second screw passage 16. The adjusting knob 20 is located on the outside and the limiting ring 21 is located on the inside. The limiting ring 21 is fixed on the secondary grip 2.

[0040] The rest is the same as Embodiment 1.

[0041] Embodiment 3: As Figure 2 、 Figure 3 and Figure 4 shown, a spring-replaceable grip strength exerciser includes a main grip 1 and a secondary grip 2. The secondary grip 2 is hinged to the main grip 1 through a rotating shaft 3. The rotating shaft 3 divides the upper and lower parts of the main grip and the secondary grip into a resistance area and a force application area. A spring 4 is arranged in the resistance area. The upper inclined end of the spring 4 is detachably connected to the main grip through a first connecting member, and the lower inclined end of the spring is detachably connected to the secondary grip through a second connecting member.

[0042] The first connecting member includes a first connecting seat 5 movably arranged on the main grip and forming a split structure therewith. One end of the first connecting seat 5 has an open groove in a U shape. A pair of stepped holes are provided in a through-through manner on the groove walls of the open groove. A first pin shaft 9 with caps at both ends is implanted in the two stepped holes. The upper inclined end of the spring 4 is hooked on the rod section of the first pin shaft 9 exposed in the open groove.

[0043] As Figure 5As shown, the other end of the first connecting seat 5 is connected to a first screw rod 10 integrally formed therewith. A first screw rod channel 12 allowing the first screw rod 10 to pass through is provided on the main grip. An adjustment slot 13 penetrating through its wall thickness and intersecting with the first screw rod channel in a cross shape is also provided on the main grip 1. An adjustment disk 11 is implanted in the adjustment slot 13. A screw hole screwed with the first screw rod 10 is provided at the center of the adjustment disk 11. Both sides of the adjustment disk 11 extend out of the adjustment slot.

[0044] The second connecting member includes a second connecting seat 8 movably arranged on the auxiliary grip 2 and having a split structure therewith. A through hole allowing the lower inclined end of the spring 4 to be hooked is provided at the center of the second connecting seat 8.

[0045] Embodiment 4: The lower end of the second connecting seat 8 is connected to an adjusting nut 14 integrally formed therewith. A second screw rod 15 is screwed through the adjusting nut 14. A second screw rod channel 16 allowing the second screw rod 15 to pass through is provided on the auxiliary grip 2. A sliding slot 17 parallel to and communicating with the second screw rod channel 16 is also provided on the auxiliary grip 2. The second connecting seat 8 is located in the sliding slot 17.

[0046] An annular groove 18 is provided at the free end of the second screw rod 15 extending into the second screw rod channel 16. A limiting shaft 19 straddles the upper notch of the annular groove 18. The limiting shaft 19 is disposed through the auxiliary grip 2. The limiting shaft 19 is located beside the rotating shaft 3 and arranged parallel thereto; an adjusting knob 20 and a limiting ring 21 are provided at the free end of the second screw rod 15 extending out of the second screw rod channel 16. Among them, the adjusting knob 20 is located on the outer side, and the limiting ring 21 is located on the inner side. The limiting ring 21 is fixed on the auxiliary grip 2.

[0047] The rest is the same as Embodiment 3.

[0048] Use: (1) The purpose of the present utility model is that the original spring can be conveniently disassembled, and springs of different specifications can be selected and assembled, so as to extend the grip force value range interval of the grip exerciser to both smaller and larger sides, and maximize the satisfaction of people with relatively small initial grip force and people who have exercised to have relatively large grip force.

[0049] (2) Both the first connecting member and the second connecting member of the present utility model have the function of adjusting the grip force value of the grip exerciser, so that the grip exerciser has the attribute of two-way adjustment of the grip force value, which is a further supplement to the spring replacement, and extends the grip force value range interval of the grip exerciser to both smaller and larger sides, and maximizes the satisfaction of people with relatively small initial grip force and people who have exercised to have relatively large grip force.

Claims

1. A spring-replaceable grip strengthener, comprising a main grip and a sub-grip, wherein the sub-grip is hingedly connected to the main grip by a rotating shaft, the rotating shaft divides the upper and lower parts of the main grip and the sub-grip into a resistance area and a force application area, and a spring is arranged in the resistance area, characterized in that, The upper inclined end of the spring is detachably connected to the main handle through a first connecting member, and the lower inclined end of the spring is detachably connected to the sub-handle through a second connecting member.

2. The spring-replaceable gripper according to claim 1, characterized in that, The first connecting member includes a first connecting seat fixedly arranged on the main handle and integrally formed therewith. One end of the first connecting seat has a U-shaped open slot. A pair of stepped holes are oppositely arranged on the slot wall of the open slot. A bolt is implanted in the two stepped holes, and a nut is arranged on the head of the bolt. The upper inclined end of the spring is hooked on the rod section of the bolt exposed in the open slot.

3. The spring replaceable grip strength exerciser according to claim 1 or 2, characterized in that, The second connecting member includes a second connecting seat fixedly arranged on the sub-handle and integrally formed therewith. A through hole is arranged at the center of the second connecting seat to allow the lower inclined end of the spring to be hooked.

4. The spring-replaceable grip strength exerciser according to claim 1 or 2, characterized in that, The second connecting member includes a second connecting seat movably arranged on the sub-handle and formed as a split structure therewith. A through hole is arranged at the center of the second connecting seat to allow the lower inclined end of the spring to be hooked. A regulating nut integrally formed therewith is connected to the lower end of the second connecting seat. A second screw rod is screwed through the regulating nut. A second screw rod passage allowing the second screw rod to pass through is arranged on the sub-handle. A sliding groove parallel and communicating with the second screw rod passage is also arranged on the sub-handle. The second connecting seat is located in the sliding groove. An annular groove is arranged on the free end of the second screw rod extending into the second screw rod passage. A limiting shaft straddles the upper notch of the annular groove. The limiting shaft is arranged through the sub-handle and is located beside and parallel to the rotating shaft. A regulating knob and a limiting ring are arranged on the free end of the second screw rod extending out of the second screw rod passage, where the regulating knob is on the outside and the limiting ring is on the inside, and the limiting ring is fixed on the sub-handle.

5. The spring-replaceable gripper according to claim 1, wherein, The first connecting member includes a first connecting seat movably arranged on the main handle and formed as a split structure therewith. One end of the first connecting seat has a U-shaped open slot. A pair of stepped holes are oppositely arranged on the slot wall of the open slot. A first pin shaft with caps at both ends is implanted in the two stepped holes. The upper inclined end of the spring is hooked on the rod section of the first pin shaft exposed in the open slot. A first screw rod integrally formed therewith is connected to the other end of the first connecting seat. A first screw rod passage allowing the first screw rod to pass through is arranged on the main handle. An adjusting groove penetrating through its wall thickness and forming a cross with the first screw rod passage is also arranged on the main handle. An adjusting disc is implanted in the adjusting groove, and a threaded hole screwed with the first screw rod is arranged at the center of the adjusting disc.

6. The spring-replaceable grip strength exerciser according to claim 5, characterized in that, Both sides of the adjusting disc extend out of the adjusting groove.

7. The spring-replaceable gripper according to claim 1 or 5 or 6, characterized in that, The second connecting member includes a second connecting seat fixedly arranged on the sub-handle and integrally formed therewith. A through hole is arranged at the center of the second connecting seat to allow the lower inclined end of the spring to be hooked.

8. The spring-replaceable grip strength exerciser according to claim 1 or 5 or 6, characterized in that, The second connecting member includes a second connecting seat movably arranged on the sub-handle and formed as a split structure therewith. A through hole is arranged at the center of the second connecting seat to allow the lower inclined end of the spring to be hooked. A regulating nut integrally formed with and connected to the lower end of the second connecting seat, a second screw rod is screwed through the regulating nut, a second screw rod passage allowing the second screw rod to pass through is provided on the secondary grip, a chute parallel to and communicating with the second screw rod passage is further provided on the secondary grip, and the second connecting seat is located in the chute; An annular groove is provided on the free end of the second screw rod extending into the second screw rod passage, a limiting shaft straddles the upper notch of the annular groove, the limiting shaft is disposed through the secondary grip, the limiting shaft is located beside the rotating shaft and arranged parallel thereto; a regulating knob and a limiting ring are provided on the free end of the second screw rod extending outside the second screw rod passage, wherein the regulating knob is located on the outside and the limiting ring is located on the inside, and the limiting ring is fixed on the secondary grip.

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