CN112870652B - Piston sliding type wrist developer for finger exercise - Google Patents

Abstract

The invention relates to the technical field of finger exercise equipment, in particular to a piston sliding type spring-grip dumb-bells for finger exercise. It is including the exercise device that is used for taking exercise the finger grip, and the exercise device includes the rear portion and holds the body, and the rear portion is held the body and is connected with the grip transmission body, and the grip transmission body is connected with the front and back connector, and the front and back connector is connected with anterior grip body, and anterior grip body is connected with the grip feedback body. The invention mainly provides a piston sliding type grip exerciser for finger exercise, which can adjust grip strength to change the grip strength and has a wide application range.

Description

Piston sliding type wrist developer for finger exercise

Technical Field

The invention relates to the technical field of finger exercise equipment, in particular to a piston sliding type spring-grip dumb-bells for finger exercise.

Background

The general pressure of pinching that carries out repetition in the existing spring-grip dumb-bells generally makes hand muscle obtain taking exercise through holding the spring-grip dumb-bells, however current spring-grip dumb-bells only has fixed pressure of holding, and the pressure of holding of the small amplitude switching spring-bell can only come through the position of holding the spring-grip dumb-bells, can't adjust and temper intensity, or can't adapt to more masses, at the bottom of the availability factor, application scope is little.

Disclosure of Invention

The present invention is directed to a piston sliding type grip for finger exercise to solve the above problems.

To achieve the above object, the present invention provides a piston sliding type finger grip exerciser, comprising an exercise device for exercising a finger grip, the exercise device at least comprising:

the rear hand holding body comprises a rear handle, the rear handle is of a square structure, a rear hand connector is arranged at the top of the rear handle and is of a partial cylindrical structure, a rear hand sleeving groove penetrating the surface of the rear hand connector is formed in the surface of the rear hand connector and is a circular through hole, a rear hand groove is formed in the surface of the rear handle, and the shape of the rear hand groove is matched with that of a hand;

the grip force transmission body comprises a half circumference connected with the rear handle, the half circumference is of a partial annular body structure, the bottom of the half circumference is connected with two piston connectors, and a piston rotator is connected between the two piston connectors at the bottom;

the front and rear connecting bodies comprise rear hand joint heads which are cylinders, rear hand sleeve connecting bodies are arranged in the rear hand joint heads and are cylinders, the rear hand sleeve connecting grooves are in sleeve fit with the rear hand sleeve connecting bodies, and the surfaces of the rear hand joint heads are connected with the front hand connecting bodies;

the front holding body comprises a front handle connected with the front hand connecting body, the front handle is of a square structure, a front hand groove is formed in the surface of the front handle, and the shape of the front hand groove is matched with that of a hand of a person;

the grip feedback body, the grip feedback body include with the feedback shell that the forehand connector is connected, the surface of feedback shell is provided with piston feedback groove, piston feedback groove is the cylinder structure recess, piston feedback inslot installs the piston No. one, the top of a piston is provided with the telescopic link No. one, a telescopic link is the cylinder, a telescopic link with the piston rotator is connected, the bottom of a piston is provided with No. two pistons, No. two pistons install in piston feedback inslot bottom, No. two pistons are provided with the telescopic link No. two, No. two the telescopic link is the cylinder, No. two the telescopic link top with the bottom of a piston contacts.

As a further improvement of the technical scheme, the surface of the first piston is provided with a containing groove which is a groove with a cylindrical structure, the side surface of the rear hand connector is correspondingly provided with a containing body, the containing body is a cylinder, and the containing body is in plug-in fit with the containing groove.

As a further improvement of the technical scheme, the rear handle is provided with a movable groove penetrating through the surface of the rear handle, the movable groove is a square penetrating port, a movable body is installed in the movable groove, the movable body is of a square structure, a free groove and a use groove are correspondingly arranged on the surface of the storage body, the free groove is of a square groove structure, and the movable body is in clamping fit with the free groove.

As a further improvement of the technical scheme, the two ends of the movable body are provided with clamping bodies, the clamping bodies are of square structures, the side faces of the rear handle are correspondingly provided with clamping grooves, the clamping grooves are square grooves, and the clamping bodies are in clamping fit with the clamping grooves.

As a further improvement of the technical scheme, a handle sleeve body is arranged at the top of the front handle, the handle sleeve body is an annular body, the front hand connecting body is a cylinder, and the handle sleeve body is matched with the front hand connecting body in a sleeve mode.

As a further improvement of this technical scheme, the surface of the handle body of cup jointing is provided with the socket that runs through its surface, the socket is circular wearing mouthful, the corresponding handle mouth that is provided with in top of preceding handle, the handle mouth is cylinder structure recess, the handle mouth with the size looks adaptation of socket, install the locking body in the socket, locking body bottom is provided with the plug body, the plug body is the cylinder, the corresponding preceding locking groove that runs through its surface that is provided with in surface of preceding hand connector, preceding locking groove is circular wearing mouthful, the plug body passes preceding locking groove the socket with the cooperation of pegging graft of handle mouth.

As a further improvement of the technical scheme, the surface of the front hand groove and the rear hand groove are provided with anti-skid layers which are arc-shaped bodies made of rubber materials.

As a further improvement of the technical solution, the feedback housing is kept away from one side of the front and rear connecting bodies is provided with an adjusting cylinder, the adjusting cylinder is a cylinder, an adjusting groove running through the surface of the adjusting cylinder is formed in the surface of the adjusting cylinder, the adjusting groove is a groove with a cylindrical structure, the adjusting groove is communicated with the piston feedback groove, the surface of the adjusting cylinder is connected with an adjusting body, the adjusting body comprises an adjusting knob, an adjusting cylinder connecting groove is formed in the adjusting knob, the adjusting cylinder connecting groove is a groove with a cylindrical structure, an adjusting plug-in body is arranged in the adjusting cylinder connecting groove, the adjusting plug-in body is a cylinder, a fixing groove running through the surface of the piston is formed in the surface of the piston, the fixing groove is a circular through hole, and the adjusting plug-in body passes through the adjusting groove and is in plug-in cooperation with the fixing groove.

As a further improvement of the technical scheme, the surface of the adjusting cylinder is provided with threads, threads are correspondingly arranged in the connecting groove of the adjusting cylinder, the adjusting cylinder is in threaded connection with the connecting groove of the adjusting cylinder, and the surface of the adjusting knob is regularly convex.

As a further improvement of the technical scheme, a piston sliding groove is arranged in the piston feedback groove, the piston sliding groove is a semi-cylinder structure groove, a piston sliding body is correspondingly arranged on the surface of the piston, the piston sliding body is a semi-cylinder structure protrusion, the piston sliding body is in clamping fit with the piston sliding groove, the piston rotating body is a cylinder, a telescopic rod rotating groove is arranged at the top of the telescopic rod, the telescopic rod rotating groove is a circular penetrating opening, and the piston rotating body is in sleeve fit with the telescopic rod rotating groove.

Compared with the prior art, the invention has the beneficial effects that:

1. this piston slidingtype finger is taken exercise and is used the spring-grip, can make the rear portion grip close to in the idle inslot and reduce the device space size with activity body card income idle inslot when the device is in idle not, activity body card income use inslot can use when using, is favorable to hand-carrying, can avoid the activity body to drop from the activity inslot through being provided with the joint body and joint groove, is favorable to the management of this device.

2. This piston slidingtype finger is taken exercise and is used spring-grip, can keep fixed with preceding handle and preceding hand locking groove through the bolt body, preceding handle takes place to remove when avoiding taking exercise, it can increase frictional force to be provided with the skid resistant course in addition, be favorable to carrying out long-time hand and take exercise, through grafting complex fixed slot, adjust the quantity of the steerable this device of plug-in body play effect's piston and then adjust the intensity that the finger was taken exercise, through the piston sliding tray, No. two telescopic links of piston sliding body piston upper and lower slip and No. two pistons in piston feedback inslot form dynamic connection and cup joint the complex piston rotator, the telescopic link swivelling chute makes the piston rotator can be favorable to improving the efficiency that the finger was taken exercise at the telescopic link swivelling chute internal rotation.

3. This piston slidingtype finger exercise is with spring-grip, accomodate the groove through the grafting complex, the storage body can realize that the back hand connector removes in accomodating the inslot, adjustable rear portion is held the body and is held the interval of the body with the front portion and make and hand size phase-match, through cup jointing the complex forehand connector, the handle cup joints the body and makes preceding handle can remove along forehand connector surface, can adjust the interval of preceding handle and back handle in order to match different hand sizes, be favorable to improving the application scope of this device.

Drawings

FIG. 1 is a schematic view of the entire structure of embodiment 1;

FIG. 2 is a schematic view of the structure of the rear grip body according to embodiment 1;

FIG. 3 is a schematic view showing the internal structure of the rear grip body according to embodiment 1;

FIG. 4 is a schematic structural view of a grip force transmission body according to embodiment 1;

FIG. 5 is a schematic view of the front and rear connecting bodies of example 1;

FIG. 6 is a schematic view showing the structure of the front grip body according to embodiment 1;

FIG. 7 is a schematic view of the grip feedback body according to embodiment 1;

FIG. 8 is a schematic view showing the internal structure of the grip feedback body according to embodiment 1;

FIG. 9 is a schematic view of the structure of a regulating body according to embodiment 1;

fig. 10 is a schematic view of the internal structure of the adjustment body according to embodiment 1.

The various reference numbers in the figures mean:

100. an exercise device;

110. a rear grip body;

111. a rear handle; 1111. a rear hand groove; 112. a rear hand connector; 113. a rear glove connecting groove; 114. a receiving groove; 115. a receiving body; 116. an idle slot; 117. using a trough; 118. a movable groove; 119. a movable body; 1191. a clip body; 1192. a clamping groove;

120. a grip force transmission body;

121. half a circle; 122. a piston connector; 123. a piston rotating body;

130. a front and rear connector;

131. a rear hand joint; 132. a back hand sleeve joint body; 133. a front hand connector; 134. a front hand locking groove;

140. a front grip body;

141. a front handle; 142. a handle sleeve body; 143. a socket; 144. a handle opening; 145. a locking body; 146. a plug body; 147. a front hand groove; 148. an anti-slip layer;

150. a grip feedback body;

151. a feedback housing; 152. a piston feedback groove; 153. a piston I; 1531. a piston sliding groove; 1532. a piston sliding body; 154. a first telescopic rod; 1541. a telescopic rod rotating groove; 155. an adjusting cylinder; 156. an adjustment groove; 157. fixing grooves; 158. a piston II; 159. a second telescopic rod;

160. an adjuster;

161. adjusting a knob; 162. adjusting the plug-in body; 163. the regulation section of thick bamboo spread groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Example 1

Referring to fig. 1 to 10, the present embodiment provides a piston-sliding type finger grip exerciser, including an exercise device 100 for exercising the finger grip, the exercise device 100 including:

the back part holding body 110, the back part holding body 110 includes a back handle 111, the back handle 111 is a square structure, the top of the back handle 111 is provided with a back hand connector 112, the back hand connector 112 is a partial cylinder structure, the surface of the back hand connector 112 is provided with a back hand sleeving groove 113 penetrating through the surface of the back hand connector, the back hand sleeving groove 113 is a circular through hole, the surface of the back handle 111 is provided with a back hand groove 1111, the shape of the back hand groove 1111 is matched with the human hand, the back part holding body 110 can be better held through the back hand groove 1111, and the exercise of fingers is facilitated;

the gripping force transmission body 120, the gripping force transmission body 120 includes a half circumference 121 connected with the rear handle 111, the half circumference 121 is a partial ring structure, the bottom of the half circumference 121 is connected with two piston connectors 122, the bottom between the two piston connectors 122 is connected with a piston rotator 123, and the gripping force received by the rear gripping body 110 can be transmitted through the gripping force transmission body 120;

the front and rear connecting bodies 130, the front and rear connecting bodies 130 include a rear hand joint 131, the rear hand joint 131 is a cylinder, a rear hand sleeve 132 is disposed in the rear hand joint 131, the rear hand sleeve 132 is a cylinder, the rear hand sleeve 113 is in sleeve fit with the rear hand sleeve 132, the surface of the rear hand joint 131 is connected with a front hand connecting body 133, and the rear hand sleeve 132 enables the rear holding body 110 to move circularly around the rear hand sleeve 132 to facilitate finger exercise;

the front holding body 140, the front holding body 140 includes a front handle 141 connected with the front hand connecting body 133, the front handle 141 is a square structure, a front hand groove 147 is arranged on the surface of the front handle 141, the shape of the front hand groove 147 is matched with the hand of a person, the front holding body 140 can be better held through the front hand groove 147, and the exercise of fingers is facilitated;

the grip feedback body 150 comprises a feedback shell 151 connected with the forehand connecting body 133, a piston feedback groove 152 is arranged on the surface of the feedback shell 151, the piston feedback groove 152 is a groove with a cylindrical structure, a first piston 153 is installed in the piston feedback groove 152, a first telescopic rod 154 is arranged at the top of the first piston 153, the first telescopic rod 154 is a cylinder, the first telescopic rod 154 is connected with the piston rotating body 123, a second piston 158 is arranged at the bottom of the first piston 153, the second piston 158 is installed at the bottom in the piston feedback groove 152, a second telescopic rod 159 is arranged on the second piston 158, the second telescopic rod 159 is a cylinder, the top of the second telescopic rod 159 is in contact with the bottom of the first piston 153, the interior of the piston is sealed when the piston is extruded, the air in the piston is compressed under the action of atmospheric pressure to generate a reaction force to restore the piston to the original state, and the piston 153, Piston two 158 may provide a stronger reaction force to facilitate exercising of the finger grip.

When the exercise device 100 of this embodiment is used, the movable body 119 is moved upward in the clamp groove 1192 to separate the movable body 119 from the idle groove 116 of the receiving body 115 and move the rear grip body 110 away from the front grip body 140, the rear glove joint groove 113 and the receiving body 115 are pulled out of the receiving groove 114 to release the movable body 119 and continuously move the rear grip body 110 until the movable body 119 is clamped into the use groove 117 of the receiving body 115, so that the rear grip body 110 is fixed to the front and rear connection bodies 130, the front grip body 140 is slid along the surface of the front hand connection body 133 to match the distance between the front grip body 110 and the size of the hand, the locking body 145 is pinched to insert the pin body 146 through the sleeve opening 143 and the front hand lock groove 134 into the handle opening 144 to fix the front grip body 140 to the front and rear connection bodies 130, the rear handle 111 and the front handle 141 are grasped, and the palm force is applied to the rear grip body 110, i.e. the rear grip body 132 is rotated as a shaft, under the driving action of the grip force transmission body 120, the first expansion link 154 moves towards the direction away from the first piston 153, the volume of air in the first piston 153 is increased, and the reaction force generated under the action of atmospheric pressure is resisted against the grip force, the adjusting knob 161 is rotated to enable the adjusting insertion body 162 to move outwards in the adjusting groove 156 until the adjusting insertion body is separated from the fixing groove 157, the first piston 153 can slide up and down along the piston sliding groove 1531, and the second expansion link 159 connected with the first piston 153 moves along with the first piston so that the second piston 158 generates reaction force to improve the strength of finger grip force exercise.

In addition, the surface of a piston 153 is provided with the storage groove 114, the storage groove 114 is a groove with a cylindrical structure, the side surface of the rear hand connector 112 is correspondingly provided with the storage body 115, the storage body 115 is a cylinder, the storage body 115 is in splicing fit with the storage groove 114, the rear hand connector 112 can move in the storage groove 114 through the splicing fit storage groove 114 and the storage body 115, the distance between the adjustable rear holding body 110 and the front holding body 140 is matched with the size of a hand, and the application range of the device is favorably widened.

Further, the rear handle 111 is provided with a movable groove 118 penetrating through the surface of the rear handle, the movable groove 118 is a square penetrating opening, a movable body 119 is installed in the movable groove 118, the movable body 119 is of a square structure, a free groove 116 and a use groove 117 are correspondingly arranged on the surface of the storage body 115, the free groove 116 and the use groove 117 are of square groove structures, the movable body 119 is matched with the free groove 116 and the use groove 117 in a clamping manner, the movable body 119 is arranged, when the device is not used, the movable body 119 can be clamped into the free groove 116, so that the rear holding body 110 is close to the front holding body 140 to reduce the space size of the device, when the device is used, the movable body 119 can be clamped into the use groove 117 to be used, and the carrying-on is facilitated.

Still further, the both ends of movable body 119 are provided with joint body 1191, and joint body 1191 is the square body structure, and the corresponding joint groove 1192 that is provided with in side of back handle 111, and joint groove 1192 is the square body recess, and joint body 1191 and joint groove 1192 joint cooperation can avoid movable body 119 to drop from movable groove 118 through being provided with joint body 1191 and joint groove 1192, are favorable to the management of this device.

Still further, a handle sleeve body 142 is arranged at the top of the front handle 141, the handle sleeve body 142 is an annular body, the front hand connector 133 is a cylinder, the handle sleeve body 142 is in sleeve fit with the front hand connector 133, the front handle 141 can move along the surface of the front hand connector 133 through the sleeve fit front hand connector 133 and the handle sleeve body 142, the distance between the front handle 141 and the rear handle 111 can be adjusted to match different hand sizes, and the application range of the device is favorably widened.

Still further, the surface of handle socket body 142 is provided with the socket 143 that runs through its surface, socket 143 is circular opening, preceding handle 141's top is corresponding to be provided with handle mouth 144, handle mouth 144 is the cylindrical structure recess, handle mouth 144 and socket 143's size looks adaptation, install locking body 145 in the socket 143, locking body 145 bottom is provided with latch body 146, latch body 146 is the cylinder, preceding hand connector 133's surface is corresponding to be provided with a plurality of preceding hand locking grooves 134 that run through its surface, preceding hand locking groove 134 is circular opening, latch body 146 passes preceding hand locking groove 134, socket 143 and handle mouth 144 grafting cooperation, can keep fixed preceding handle 141 and preceding hand locking groove 134 through latch body 146, preceding handle 141 takes place to remove when avoiding taking exercise, be favorable to the exercise of finger.

Still further, the surface of back hand groove 1111, preceding hand groove 147 is provided with skid resistant course 148, and skid resistant course 148 is the arc body of rubber material, and smooth surface is not convenient for grip when the hand perspires in tempering, and it can increase frictional force to be provided with skid resistant course 148 specially, is favorable to carrying out long-time hand and tempers.

Furthermore, an adjusting cylinder 155 is arranged on one side of the feedback shell 151, which is far away from the front and rear connecting bodies 130, the adjusting cylinder 155 is a cylinder, an adjusting groove 156 penetrating through the surface of the adjusting cylinder 155 is arranged on the surface of the adjusting cylinder 155, the adjusting groove 156 is a groove with a cylindrical structure, the adjusting groove 156 is communicated with the piston feedback groove 152, the adjusting body 160 is connected on the surface of the adjusting cylinder 155, the adjusting body 160 comprises an adjusting knob 161, an adjusting cylinder connecting groove 163 is arranged in the adjusting knob 161, the adjusting cylinder connecting groove 163 is a groove with a cylindrical structure, an adjusting plug-in body 162 is arranged in the adjusting cylinder connecting groove 163, the adjusting plug-in body 162 is a cylinder, a fixing groove 157 penetrating through the surface of the piston 153 is arranged on the surface of the piston, the fixing groove 157 is a circular penetrating opening, the adjusting plug-in body 162 penetrates through the adjusting groove 156 to be in plug-in fit with the fixing groove 157, the number of the pistons which are used by the device can be controlled by the fixing groove 157 and the adjusting plug-in body 162 which are matched in a plug-in mode, and further the strength of finger exercise can be adjusted.

In addition, the surface of the adjusting barrel 155 is provided with threads, threads are correspondingly arranged in the adjusting barrel connecting groove 163, the adjusting barrel 155 is in threaded connection with the adjusting barrel connecting groove 163, the surface of the adjusting knob 161 is regular, the adjusting barrel 155 and the adjusting barrel connecting groove 163 are in threaded connection, the adjusting body 160 and the grip feedback body 150 can be prevented from accidentally falling off, and meanwhile, the protrusions on the surface of the adjusting knob 161 are also beneficial to rotation.

In addition, a piston sliding groove 1531 is disposed in the piston feedback groove 152, the piston sliding groove 1531 is a groove with a semi-cylindrical structure, a piston sliding body 1532 is correspondingly disposed on the surface of the first piston 153, the piston sliding body 1532 is a protrusion with a semi-cylindrical structure, the piston sliding body 1532 is in snap fit with the piston sliding groove 1531, the piston rotating body 123 is a cylinder, a telescopic rod rotating groove 1541 is disposed on the top of the first telescopic rod 154, the telescopic rod rotating groove 1541 is a circular through hole, the piston rotating body 123 is in socket fit with the telescopic rod rotating groove 1541, through the piston sliding groove 1531, the first piston 153 of the piston sliding body 1532 slides up and down in the piston feedback groove 152, and the second expansion link 159 of the second piston 158 form dynamic connection and are sleeved with the matched piston rotating body 123 and expansion link rotating groove 1541, so that the piston rotating body 123 can rotate in the expansion link rotating groove 1541, which is beneficial to improving the efficiency of finger exercise.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (6)

1. The utility model provides a piston slidingtype finger is taken exercise and is used spring-grip, its characterized in that: comprising an exercise device (100) for exercising the finger grip, said exercise device (100) comprising at least:

the rear hand-held device comprises a rear hand-held body (110), wherein the rear hand-held body (110) comprises a rear handle (111), the rear handle (111) is of a square structure, a rear hand connector (112) is arranged at the top of the rear handle (111), the rear hand connector (112) is of a partial cylindrical structure, a rear hand socket groove (113) penetrating through the surface of the rear hand connector (112) is formed in the surface of the rear hand connector (112), the rear hand socket groove (113) is a circular penetrating opening, a rear hand groove (1111) is formed in the surface of the rear handle (111), and the shape of the rear hand groove (1111) is matched with the hand of a person;

the gripping force transmission body (120) comprises a half circumference (121) connected with the rear handle (111), the half circumference (121) is of a partial annular body structure, two piston connecting bodies (122) are connected to the bottom of the half circumference (121), and a piston rotating body (123) is connected to the bottom between the two piston connecting bodies (122);

the front and rear connecting bodies (130) comprise rear hand butt joints (131), the rear hand butt joints (131) are cylinders, rear hand sleeve-connected bodies (132) are arranged in the rear hand butt joints (131), the rear hand sleeve-connected bodies (132) are cylinders, the rear hand sleeve-connected grooves (113) are in sleeve-connected fit with the rear hand sleeve-connected bodies (132), and the surfaces of the rear hand butt joints (131) are connected with front hand connecting bodies (133);

the front holding body (140) comprises a front handle (141) connected with the front hand connecting body (133), the front handle (141) is of a square structure, a front hand groove (147) is formed in the surface of the front handle (141), and the shape of the front hand groove (147) is matched with the shape of a human hand;

the grip feedback body (150) comprises a feedback shell (151) connected with the forehand connecting body (133), a piston feedback groove (152) is formed in the surface of the feedback shell (151), the piston feedback groove (152) is a cylindrical groove, a first piston (153) is installed in the piston feedback groove (152), a first telescopic rod (154) is arranged at the top of the first piston (153), the first telescopic rod (154) is a cylinder, the first telescopic rod (154) is connected with the piston rotating body (123), a second piston (158) is arranged at the bottom of the first piston (153), the second piston (158) is installed at the bottom in the piston feedback groove (152), the second piston (158) is provided with a second telescopic rod (159), and the second telescopic rod (159) is a cylinder, the top of the second expansion link (159) is in contact with the bottom of the first piston (153);

the surface of the first piston (153) is provided with a storage groove (114), the storage groove (114) is a groove with a cylindrical structure, the side surface of the rear hand connector (112) is correspondingly provided with a storage body (115), the storage body (115) is a cylinder, and the storage body (115) is in plug-in fit with the storage groove (114);

the rear handle (111) is provided with a movable groove (118) penetrating through the surface of the rear handle, the movable groove (118) is a square penetrating opening, a movable body (119) is installed in the movable groove (118), the movable body (119) is of a square structure, an idle groove (116) and a use groove (117) are correspondingly arranged on the surface of the storage body (115), the idle groove (116) and the use groove (117) are of square groove structures, and the movable body (119) is in clamping fit with the idle groove (116) and the use groove (117);

clamping bodies (1191) are arranged at two ends of the movable body (119), the clamping bodies (1191) are of a square structure, clamping grooves (1192) are correspondingly arranged on the side surface of the rear handle (111), the clamping grooves (1192) are square grooves, and the clamping bodies (1191) are in clamping fit with the clamping grooves (1192);

one side of the feedback shell (151) far away from the front and rear connecting bodies (130) is provided with an adjusting cylinder (155), the adjusting cylinder (155) is a cylinder, the surface of the adjusting cylinder (155) is provided with an adjusting groove (156) penetrating through the surface of the adjusting cylinder, the adjusting groove (156) is a groove with a cylindrical structure, the adjusting groove (156) is communicated with the piston feedback groove (152), the surface of the adjusting cylinder (155) is connected with an adjusting body (160), the adjusting body (160) comprises an adjusting knob (161), an adjusting cylinder connecting groove (163) is arranged in the adjusting knob (161), the adjusting cylinder connecting groove (163) is a groove with a cylindrical structure, an adjusting plug-in body (162) is arranged in the adjusting cylinder connecting groove (163), the adjusting plug-in body (162) is a cylinder, and the surface of the piston (153) is provided with a fixing groove (157) penetrating through the surface of the piston, the fixing groove (157) is a circular through opening, and the adjusting plug-in body (162) penetrates through the adjusting groove (156) to be in plug-in fit with the fixing groove (157).

2. The piston-sliding type grip for finger exercise according to claim 1, wherein: the top of preceding handle (141) is provided with handle socket body (142), handle socket body (142) is the ring body, forehand connector (133) is the cylinder, handle socket body (142) with forehand connector (133) cup joints the cooperation.

3. The piston-sliding type grip for finger exercise according to claim 2, wherein: the surface of handle socket body (142) is provided with socket (143) that runs through its surface, socket (143) are circular to wear the mouth, the corresponding handle mouth (144) that is provided with in top of preceding handle (141), handle mouth (144) are cylindrical structure recess, handle mouth (144) with the size looks adaptation of socket (143), install locking body (145) in socket (143), locking body (145) bottom is provided with plug body (146), plug body (146) are the cylinder, the corresponding preceding hand locking groove (134) that runs through its surface that is provided with of surface of preceding hand connector (133), preceding hand locking groove (134) are circular to wear the mouth, plug body (146) pass preceding hand locking groove (134) socket mouth (143) with handle mouth (144) cooperation of pegging graft.

4. The piston-sliding type grip for finger exercise according to claim 1, wherein: the surface of back hand groove (1111), preceding hand groove (147) is provided with skid resistant course (148), skid resistant course (148) are the arc body of rubber material.

5. The piston-sliding type grip for finger exercise according to claim 1, wherein: the surface of adjusting a section of thick bamboo (155) is provided with the screw thread, it is provided with the screw thread in connecting groove (163) correspondingly to adjust a section of thick bamboo, adjust a section of thick bamboo (155) with adjust a section of thick bamboo connecting groove (163) threaded connection, the surface of adjust knob (161) is the rule arch.

6. The piston-sliding type grip for finger exercise according to claim 1, wherein: be provided with piston sliding tray (1531) in piston feedback groove (152), piston sliding tray (1531) are the semicircle cylinder structure recess, the corresponding piston sliding body (1532) that is provided with in surface of piston (153), piston sliding body (1532) are the semicircle cylinder structure arch, piston sliding body (1532) with piston sliding tray (1531) joint cooperation, piston rotator (123) are the cylinder, the top of telescopic link (154) is provided with telescopic link rotating groove (1541), telescopic link rotating groove (1541) is circular and wears the mouth, piston rotator (123) with telescopic link rotating groove (1541) cup joints the cooperation.

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