AU2021100361A4

AU2021100361A4 - Hand gripper

Info

Publication number: AU2021100361A4
Application number: AU2021100361A
Authority: AU
Inventors: Ding HE; Zhi Liu; Chaojie WANG; Xufeng YANG
Original assignee: Yiwu Thousandshores eCommerce Co Ltd
Current assignee: Yiwu Thousandshores eCommerce Co Ltd
Priority date: 2020-12-21
Filing date: 2021-01-20
Publication date: 2021-04-15
Anticipated expiration: 2029-01-20
Also published as: CN214714132U

Abstract

The present application relates to the technical field of fitness equipment, provides a hand gripper, which includes: at least one set of grip arm group, a resistance member and an adjustment structure; each of grip arm groups includes an upper grip arm and a lower grip arm; the resistance member includes a pressure cylinder, a piston and a piston rod, wherein the piston is connected to an end of the piston rod, and the other end of the piston rod is connected to the upper grip arm; the piston is slidably disposed in the pressure cylinder, the pressure cylinder is provided with a closed cavity for accommodating fillers, and the pressure cylinder is connected with the lower grip arm; the adjustment structure is disposed on the pressure cylinder and configured for adjusting a volume of the pressure cylinder. The hand gripper of the present application uses the adjustment structure disposed on the pressure cylinder to adjust the volume of the pressure cylinder, so as to adjust the resistance of the resistance member, and then adjust the grip force of the hand gripper, so as to adapt to different groups of users. Not only the structure is simple, but also the use is more convenient, and the service life is effectively extended. 1/4 110 1111 120 FIG. 1

Description

1/4

110

1111

120

FIG. 1

HAND GRIPPER

Technical Field

The present application relates to the technical field of fitness equipment, and more particularly to a hand gripper.

Background

With the continuous improvement of the living conditions of people, fitness equipment is now one of the indispensable equipment in life, and the hand gripper is the most common fitness equipment in daily life of people. A current hand gripper has two grip arms, the middle portion of the two grip arms are rotatably connected to each other to form a cross structure, and a spring is arranged between the two grip arms on one side of the cross structure, and one end of the spring is connected with one of the grip arms, the other end of the spring is connected with another of the grip arms through spring length adjustment structure; the other side of the cross structure is a handle portion. When a user uses the hand gripper to exercise, the hand of the user repeatedly grips the g handle portion, such that the spring is repeatedly stretched and reset, after long-term use, the spring itself has insufficient elasticity, resulting in a short service life of the hand gripper.

Summary

Based on the above-mentioned, it is necessary to provide a hand gripper to solve the problem that the service life of the hand gripper is short due to repeated using of the current hand gripper, resulting in insufficient elasticity of the spring. The above objects are achieved through the following technical solutions:

A hand gripper, which includes: at least one set of grip arm group, each of which includes an upper grip arm and a lower grip arm; a resistance member, including a pressure cylinder, a piston and a piston rod, wherein the piston is connected to an end of the piston rod, and the other end of the piston rod is connected to the upper grip arm; the piston is slidably disposed in the pressure cylinder, the pressure cylinder is provided with a closed cavity for accommodating fillers, and the pressure cylinder is connected with the lower grip arm; and an adjustment structure, disposed on the pressure cylinder and configured for adjusting a volume of the pressure cylinder. In one of the embodiments, the adjustment structure comprise an adjusting plug, the adjusting plug is movably arranged at an end portion of the pressure cylinder along an axial direction of the pressure cylinder, and the adjusting plug and the piston rod are respectively located at both sides of the piston. In one of the embodiments, the adjusting plug is cylindrical, an outer wall of the adjusting plug is provided with external threads, and an inner wall of the pressure cylinder is provided with internal threads matched with the external threads; the adjusting plug is able to move along the axial direction of the pressure cylinder through the matching of the external threads and the internal threads. In one of the embodiments, the inner wall of the pressure cylinder is provided with two limiting protrusions sequentially spaced along the axial direction of the pressure cylinder, the adjusting plug is located between the two limiting protrusions, and the two limiting protrusions are configured for limiting a range of movement of the adjusting plug along the axial direction of the pressure cylinder.

In one of the embodiments, the limiting protrusions are annular, and the two limiting protrusions are arranged on the inner wall of the pressure cylinder in parallel and spaced apart, and the limiting protrusions are perpendicular to the inner wall of the pressure cylinder. In one of the embodiments, the hand gripper further comprises a first rotation shaft and a first shaft hole, the first rotation shaft is disposed at one of an end of the piston rod away from the piston and the upper grip arm, and the first shaft hole corresponding to the first rotation shaft is disposed at another of the end of the piston rod away from the piston and the upper grip arm, and the first rotation shaft is rotatably connected in the first shaft hole. In one of the embodiments, the hand gripper further comprises a second rotation shaft and a second shaft hole, the second rotation shaft is disposed at one of the pressure cylinder and the lower grip arm, the second shaft hole corresponding to the second rotation shaft is disposed at another of the pressure cylinder and the lower grip arm, and the second rotation shaft is rotatably connected in the second shaft hole. In one of the embodiments, the hand gripper further includes a first linkage rod and a second linkage rod, a middle portion of the first linkage rod is rotatably connected with a middle portion of the second linkage rod; the grip arm group is in two groups; an end of the first linkage rod is connected to the upper grip arm of one group of the grip arm groups, and the other end of the first linkage rod is connected to the lower grip arm of another group of the grip arm groups; an end of the second linkage rod is connected to the lower grip arm of one group of the grip arm groups, and the other end of the second linkage rod is connected to the upper grip arm of another group of the grip arm groups. In one of the embodiments, the first linkage rod is rotatably connected with both of the upper grip arm of one group of the grip arm groups and the lower grip arm of another group of the grip arm groups; and the second linkage rod is rotatably connected with both of lower grip arm of one group of the grip arm groups and the upper grip arm of another group of the grip arm groups. In one of the embodiments, each of the upper grip arms includes a first pressure-bearing rod, a first connection rod, and a first handle portion, and the first pressure-bearing rod, the first connection rod and the first handle portion are connected in sequence; an end of the first pressure-bearing rod away from the first connection rod is connected with the first linkage rod or the second linkage rod; each of the lower grip arms comprises a second pressure-bearing rod, a second connection rod, and a second handle portion, and the second pressure-bearing rod, the second connection rod and the second handle portion are connected in sequence; an end of the second pressure-bearing rod away from the second connection rod is connected with the second linkage rod or the first linkage rod; a distance between the first pressure-bearing rod and the second pressure-bearing rod in each of the grip arm groups is greater than a distance between the first handle portion and the second handle portion, the piston rod of the resistance member is connected with the first pressure-bearing rod, and the pressure cylinder of the resistance member is connected with the second pressure-bearing rod. The above hand gripper has at least the benefic effects as follow: The hand gripper provided in the present application is provided with a resistance member between the upper grip arm and the lower grip arm, and the resistance member includes a pressure cylinder, a piston and a piston rod. The piston is connected to an end of the piston rod and slidably disposed in the pressure cylinder, the pressure cylinder is provided with a closed cavity for accommodating fillers, further, the adjustment structure disposed on the pressure cylinder is configured for adjusting a volume of the pressure cylinder to adjust the resistance of the resistance member. The hand gripper in the present application does not use the traditional elastic member, such that the problem of insufficient elasticity will not occur due to the long-term use, and therefore has the advantage of long service life. Further, the hand gripper in the present application can adjust the resistance of the resistance member through the adjustment structure, and then adjust the grip force of the hand gripper, so as to adapt to different groups of users. The structure is simple and easy to use.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a structural schematic view of a hand gripper provided by a first embodiment of the present application; Figure 2 is a structural schematic view of a resistance member of the structure shown in figure 1; Figure 3 is a schematic view of an adjustment structure of the structure shown in figure 2. In the drawings: 100-grip arm group; 110-upper grip arm; 111-first pressure-bearing rod; 112-first connection rod; 113-first handle portion; 120-lower grip arm; 121-second pressure-bearing; 122-second connection rod; 123-second handle portion; 200-resistance member; 210-pressure cylinder; 211-limiting protrusion; 212-inernal thread; 220-piston; 230-piston rod; 300-adjustment structure; 310- adjusting plug; 311-external thread; 400-first linkage rod; 500-second linkage rod.

DETAILED DESCRIPTION

In order to make the purpose, technical solutions, and advantages of the present application clearer, the following examples are used in conjunction with the drawings to further describe the hand gripper of the present application in details. It should be understood that the specific embodiments described here are only used to explain the present application, and are not used to limit the present application. The serial numbers assigned to the parts herein, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequence or technical meaning. The "connection" and "coupling" mentioned in the application include direct and indirect connection (coupling) unless otherwise specified. In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top" , "bottom", "inner", "outer", "clockwise", "counterclockwise" and other directions or positional relations are based on the positions or positional relations shown in the drawings, and are only for the convenience of describing the present application and the description is simplified, rather than indicating or implying that the pointed device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present application. In the present application, unless otherwise clearly stipulation and defined, the first feature "on" or "under" the second feature may be in direct contact with the first and second features, or the first and second features may be indirectly contacted through an intermediary. Moreover, the first feature is "above" and "on" the second feature may mean that the first feature is directly above or obliquely above the second feature, or it simply means that the level of the first feature is higher than that of the second feature. The first feature "below" and "under" the second feature can mean that the first feature is directly below or obliquely below the second feature, or it simply means that the level of the first feature is smaller than the second feature.

As shown in figure 1, the embodiment of the present application provides a hand gripper, which includes at least one set of grip arm group 100, a resistance member 200 and an adjustment structure 300. Each of the grip arm groups 100 includes an upper grip arm 110 and a lower grip arm 120; the resistance member 200 includes a pressure cylinder 210, a piston 220 and a piston rod 230. The piston 220 is connected to an end of the piston rod 230, and the other end of the piston rod 230 is connected to the upper grip arm 110; the piston 220 is slidably arranged in the pressure cylinder 210, the pressure cylinder 210 is provided therein with a closed cavity configured for accommodating fillers, and the pressure cylinder 210 is connected with the lower grip arm 120. The adjusting structure 300 is disposed on the pressure cylinder 210, and the adjusting structure 300 is configured to adjust the volume of the pressure cylinder 210. In the present application, the grip arm group 100 may be one set or multiple sets, preferably two sets. The connection relationship between the two sets of grip arm groups 100 can be various. For example, as shown in figure 1, the hand gripper further includes a first linkage rod 400 and a second linkage rod 500, and the middle portion of the first linkage rod 400 is rotatably connected with the middle portion of the second linkage rod 500. One end of the first linkage rod 400 is connected to the upper grip arm 110 of one set of grip arm groups 100, and the other end is connected to the lower grip arm 120 of another set of grip arm groups 100; one end of the second linkage rod 500 is connected to the lower grip arm 120 of one set of grip arm groups 100, and the other end is connected to the upper grip arm 110 of another set of grip arm groups 100. The two sets of grip arm groups 100 are linked by the first linkage rod 400 and the second linkage rod 500, so that the users can exercise both hands at the same time. As shown in figure 1, in an embodiment, the first linkage lever 400 is rotatably connected with both of the upper grip arm 110 of one set of grip arm groups 100 and the lower grip arm 120 of another set of grip arm groups 100; the second linkage lever 500 is rotatably connected with both of the lower grip arm 120 of one set of grip arm groups 100 and the upper grip arm 110 of another set of grip arm groups 100. In this way, during the linked process of the two sets of grip arm groups 100, the relative positional relationship between the upper grip arm 110, the lower grip arm 120 and the resistance member 200 can be ensured as much as possible, so as to improve the comfort of the user in using the hand gripper of the present embodiment. The upper grip arm 110 and the lower grip arm 120 can have a variety of structural forms. For example, as shown in figure 1, each upper grip arm 110 includes a first pressure-bearing rod 111, a first connection rod 112, and a first handle portion 113; and the first pressure-bearing rod 111, the first connection rod 112 and the first handle portion 113 are sequentially connected. An end of the first pressure-bearing rod 111 away from the first connection rod 112 is connected to the first linkage rod 400 or the second linkage rod 500. Each lower grip arm 120 includes a second pressure-bearing rod 121, a second connection rod 122, and a second handle portion 123, and the second pressure-bearing rod 121, the second connection rod 122 and the second handle portion 123 are sequentially connected; the end of the second pressure-bearing rod 121 away from the second connection rod 122 is connected to the second linkage rod 500 or the first linkage rod 400. The above-mentioned resistance member 200 may be arranged between the first pressure-bearing rod 111 and the second pressure-bearing stem 121 in each set of grip arm groups 100. For example, the piston rod 230 of the resistance member 200 is connected to the first pressure-bearing rod 111, and the pressure cylinder 210 of the resistance member 200 is connected to the second pressure-bearing rod 121. The first pressure-bearing rod 111, the second pressure-bearing rod 121, and the first handle portion 113 and the second handle portion 123 in the grip arm group 100 are all arranged parallel to each other. In addition, the distance between the first pressure-bearing rod 111 and the second pressure-bearing rod 121 is greater than the distance between the first handle portion 113 and the second handle portion 123, which is convenient for the user to hold and to install the resistance member 200 at the same time. The resistance member 200 can be connected to the upper grip arm 110 and the lower grip arm 120 in various ways. As an implementable manner, the hand gripper further includes a first rotation shaft and a first shaft hole, the first rotation shaft is provided on one of the end portion of the piston rod 230 away from the piston 220 and the upper grip arm 110, the first shaft hole corresponding to the first rotation shaft is provided on the other one of the end portion of the piston rod 230 away from the piston 220 and the other of the upper grip arm 110, and the first rotation shaft is rotatably connected in the first shaft hole. The hand gripper also includes a second rotation shaft and a second shaft hole, the second rotation shaft is provided on one of the pressure cylinder 210 and the lower grip arm 120, the second shaft hole corresponding to the second rotation shaft is provided on the another of the pressure cylinder 210 and the lower grip arm 120, the second rotation shaft is rotatably connected in the second shaft hole. The piston rod 230 is rotatably connected with the upper grip arm 110 by the first rotation shaft and the first shaft hole, and the pressure cylinder 210 is rotatably connected with the lower grip arm 120 by the second rotation shaft and the second shaft hole, so that the user uses the hand gripper of the present embodiment, the upper grip arm 110, the lower grip arm 120, and the resistance member 200 can move more smoothly, to avoid suspension and improve the comfort of use. The adjustment structure 300 can have a variety of structural forms. As an implementable manner, referring to figures 2 and 3, the adjustment structure 300 includes an adjusting plug 310, the adjusting plug 310 is movably disposed at the end portion of the pressure cylinder 210 along the axial direction of the pressure cylinder 210, and the adjusting plug body 310 and the piston rod 230 are respectively located on both sides of the piston 220. The volume of the pressure cylinder 210 can be adjusted through axially moving the adjusting plug body 310, thereby the resistance of the resistance member 200 can be changed, and thus the grip strength can be adjusted according to the needs of the user. In an embodiment, the adjusting plug 310 may be cylindrical, the outer wall of the adjusting plug 310 is provided with external threads 311, and the inner wall of the pressure cylinder 210 is provided with internal threads 212 that matches the external threads 311; the adjusting plug 310 using the matching of the external threads 311 and the internal threads 212 can move along the axial direction of the pressure cylinder 210. In other embodiments, the outer side wall of the adjusting plug body 310 may be provided with a plurality of elastic protrusions, and the plurality of elastic protrusions may be arranged at intervals along the axial direction of the pressure cylinder 210, and the inner wall of the pressure cylinder 210 may be provided with grooves matched with the elastic protrusions, so that the elastic protrusions are squeezed into the grooves, not only can fix the adjustment plug 310, but also facilitate people to move the adjusting plug 310 to a suitable position as needed. The hand gripper provided in the present application is provided with a resistance member 200 between the upper grip arm 110 and the lower grip arm 120, and the resistance member 200 includes the pressure cylinder 210, the piston 220 and the piston rod 230. The piston 220 is connected to an end of the piston rod 230 and slidably disposed in the pressure cylinder 210, the pressure cylinder 210 is provided with a closed cavity for accommodating fillers, further, the adjustment structure 300 disposed on the pressure cylinder 210 is configured for adjusting a volume of the pressure cylinder 210 to adjust the resistance of the resistance member 200. The hand gripper in the present application does not use the traditional elastic member, such that the problem of insufficient elasticity will not occur due to the long-term use, and therefore has the advantage of long service life. Further, the hand gripper in the present application can adjust the resistance of the resistance member 200 through the adjustment structure 300, and then adjust the grip force of the hand gripper, so as to adapt to different groups of users. The structure is simple and easy to use. In each of the foregoing embodiments, as shown in figure 2, two limiting protrusions 211 are sequentially spaced along the axial direction of the pressure cylinder 210 on the inner wall of the pressure cylinder 210, and the adjusting plug 310 is located between the two limiting protrusions 211, the two limiting protrusions 211 are used to limit the range of the adjusting plug 310 moving in the axial direction of the pressure cylinder 210. The limit protrusion 211 is used to limit the moving range of the adjusting plug 310, so as to prevent the user from pushing the adjusting plug 310 deep into the pressure cylinder 210 or making adjusting plug 310 being separated from the pressure cylinder 210 when adjusting the hand gripper in the embodiment. In the present application, the limiting protrusions 211 can have various structural forms. For example, the limiting protrusions can be ring-shaped, and the two limiting protrusions 211 are arranged on the inner wall of the pressure cylinder 210 in parallel and spaced apart, and the limiting protrusions 211 are perpendicular to the inner wall of the pressure cylinder 210. In other embodiments, the limiting protrusions 211 may also be block-shaped. The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, all possible combinations of the various technical features in the above-mentioned embodiments may not be described. However, as long as there is no contradiction in the combination of these technical features, which should be considered as the scope of the specification. The above-mentioned embodiments only express several implementations of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the present application. It should be pointed out that for those skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, and these all fall within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

CLAIMS What is claimed is:

1. A hand gripper, comprising: at least one set of grip arm group, wherein each of which comprises an upper grip arm and a lower grip arm; a resistance member, comprising a pressure cylinder, a piston and a piston rod, wherein the piston is connected to an end of the piston rod, and the other end of the piston rod is connected to the upper grip arm; the piston is slidably disposed in the pressure cylinder, the pressure cylinder is provided with a closed cavity for accommodating fillers, and the pressure cylinder is connected with the lower grip arm; and an adjustment structure, disposed on the pressure cylinder and configured for adjusting a volume of the pressure cylinder.

2. The hand gripper according to claim 1, wherein the adjustment structure comprise an adjusting plug, the adjusting plug is movably arranged at an end portion of the pressure cylinder along an axial direction of the pressure cylinder, and the adjusting plug and the piston rod are respectively located at both sides of the piston.

3. The hand gripper according to claim 2, wherein the adjusting plug is cylindrical, an outer wall of the adjusting plug is provided with external threads, and an inner wall of the pressure cylinder is provided with internal threads matched with the external threads; the adjusting plug is able to move along the axial direction of the pressure cylinder through the matching of the external threads and the internal threads.

4. The hand gripper according to claim 2 or 3, wherein the inner wall of the pressure cylinder is provided with two limiting protrusions sequentially spaced along the axial direction of the pressure cylinder, the adjusting plug is located between the two limiting protrusions, and the two limiting protrusions are configured for limiting a range of movement of the adjusting plug along the axial direction of the pressure cylinder.

5. The hand gripper according to claim 4, wherein the limiting protrusions are annular, and the two limiting protrusions are arranged on the inner wall of the pressure cylinder in parallel and spaced apart, and the limiting protrusions are perpendicular to the inner wall of the pressure cylinder.

6. The hand gripper according to claim 1, wherein the hand gripper further comprises a first rotation shaft and a first shaft hole, the first rotation shaft is disposed at one of an end of the piston rod away from the piston and the upper grip arm, and the first shaft hole corresponding to the first rotation shaft is disposed at another of the end of the piston rod away from the piston and the upper grip arm, and the first rotation shaft is rotatably connected in the first shaft hole.

7. The hand gripper according to claim 1, wherein the hand gripper further comprises a second rotation shaft and a second shaft hole, the second rotation shaft is disposed at one of the pressure cylinder and the lower grip arm, the second shaft hole corresponding to the second rotation shaft is disposed at another of the pressure cylinder and the lower grip arm, and the second rotation shaft is rotatably connected in the second shaft hole.

8. The hand gripper according to claim 1, wherein the hand gripper further comprises a first linkage rod and a second linkage rod, a middle portion of the first linkage rod is rotatably connected with a middle portion of the second linkage rod; the grip arm group is in two groups; an end of the first linkage rod is connected to the upper grip arm of one group of the grip arm groups, and the other end of the first linkage rod is connected to the lower grip arm of another group of the grip arm groups; an end of the second linkage rod is connected to the lower grip arm of one group of the grip arm groups, and the other end of the second linkage rod is connected to the upper grip arm of another group of the grip arm groups.

9. The hand gripper according to claim 8, wherein the first linkage rod is rotatably connected with both of the upper grip arm of one group of the grip arm groups and the lower grip arm of another group of the grip arm groups; and the second linkage rod is rotatably connected with both of lower grip arm of one group of the grip arm groups and the upper grip arm of another group of the grip arm groups.

10. The hand gripper according to claim 8, wherein each of the upper grip arms comprises a first pressure-bearing rod, a first connection rod, and a first handle portion, and the first pressure-bearing rod, the first connection rod and the first handle portion are connected in sequence; an end of the first pressure-bearing rod away from the first connection rod is connected with the first linkage rod or the second linkage rod; each of the lower grip arms comprises a second pressure-bearing rod, a second connection rod, and a second handle portion, and the second pressure-bearing rod, the second connection rod and the second handle portion are connected in sequence; an end of the second pressure-bearing rod away from the second connection rod is connected with the second linkage rod or the first linkage rod; a distance between the first pressure-bearing rod and the second pressure-bearing rod in each of the grip arm groups is greater than a distance between the first handle portion and the second handle portion, the piston rod of the resistance member is connected with the first pressure-bearing rod, and the pressure cylinder of the resistance member is connected with the second pressure-bearing rod.

2021100361 1/2

110

111 113 112 100 400 500 110 120

230 200 210 123 122 121

120

FIG. 1