CN209828129U

CN209828129U - Grip strength trainer

Info

Publication number: CN209828129U
Application number: CN201920527478.8U
Authority: CN
Inventors: 谭逢梅
Original assignee: Affiliated Hospital of Southwest Medical University
Current assignee: Affiliated Hospital of Southwest Medical University
Priority date: 2019-04-18
Filing date: 2019-04-18
Publication date: 2019-12-24
Anticipated expiration: 2029-04-18

Abstract

According to the application, the oval grip sphere is held by a hand, the arc-shaped pressure plate is extruded to move towards the limiting plate, the moving shaft and the guide rod move towards the limiting plate together, the distance between the spring stop block and the limiting plate is a moving stroke, the linear motion process of the arc-shaped pressure plate is stabilized through the matching of the first sliding through hole and the moving shaft, the detection switch mechanism moves together, the moving distance of the arc-shaped pressure plate is detected, the distance value is converted into a short-circuit signal, the short-circuit signal is transmitted to the controller through a signal wire harness, and the controller controls the electronic display screen to display the grip according to an access; the grip strength is checked through Hooke's law, the conversion problem of a hardware sensor is reduced, and the detection accuracy is improved.

Description

Grip strength trainer

Technical Field

The utility model relates to a medical treatment rehabilitation training equipment technical field, concretely relates to grip strength training device.

Background

Traditional grip ball is used for PICC recovered. The PICC is a deep vein catheter technique in which a peripheral puncture is performed to place a central venous catheter, and specifically, a peripheral vein such as a basilic vein of an arm, a median cubital vein, and a cephalic vein is punctured and cannulated to place the distal end of the catheter into a central great vein such as a superior vena cava or a subclavian vein. Essentially, an infusion channel is established. Venous thrombosis is one of complications after PICC (peripherally inserted central catheter) catheterization, and has potential danger; the fist making exercise is a main measure for preventing venous thrombosis, the force for holding the ball is difficult to master by a patient through the existing common sponge grip ball, the grip strength of hand training after arteriovenous internal fistula operation has strict requirements, bleeding can be caused by overlarge grip strength, and the purpose of function training can not be achieved due to the fact that the grip strength is too small. Traditional grip ball can't satisfy the detection of arteriovenous internal fistula postoperative operation dynamics size.

SUMMERY OF THE UTILITY MODEL

Not enough to exist among the prior art, the utility model provides a grip trainer has solved the grip of traditional grip ball and has detected and the problem of stability. In order to achieve the above purpose, the utility model adopts the following technical scheme:

a grip training device comprises a framework, wherein two ends of the framework are internally connected with a spherical surface where a long axis of an oval grip sphere is located, the framework is connected with an arc-shaped pressure plate through a reciprocating elastic mechanism, one side, opposite to the arc-shaped pressure plate, of the framework is connected with a limiting plate, a detection switch mechanism is further arranged on the framework between the reciprocating elastic mechanisms, and the reciprocating elastic mechanism is used for driving the arc-shaped pressure plate to do linear reciprocating motion; the detection switch mechanism is used for detecting the elastic force change of the reciprocating elastic mechanism; the oval grip sphere is further connected with a connecting pipe, the other end of the connecting pipe is connected with a display device, the display device comprises an electronic display screen and a controller, signal harnesses are arranged in the framework and the connecting pipe, one ends of the signal harnesses are connected with the detection switch mechanism, the other ends of the signal harnesses are connected with the controller, and the controller is further connected with the electronic display screen.

Furthermore, the outer surface of the oval grip sphere is connected with a finger ring sleeve, and the finger ring sleeve is close to one side of the arc-shaped pressure plate.

Furthermore, a sliding through hole is formed in the framework and comprises a first sliding through hole, the first sliding through hole is connected with a spring mounting hole, the spring mounting hole is close to the side of the limiting plate, the first sliding through hole is coaxial with a central axis of the spring mounting hole, and the inner diameter of the first sliding through hole is smaller than that of the spring mounting hole.

Furthermore, the reciprocating elastic mechanism comprises a moving shaft, the moving shaft is matched with the first sliding through hole, one end of the moving shaft is connected with the arc-shaped pressure plate, the other end of the moving shaft is in threaded connection with a spring stop block, a return spring is further sleeved on the moving shaft, one end of the return spring is fixed on the spring stop block, and the other end of the return spring is fixed at the bottom of the spring mounting hole.

Furthermore, the detection switch mechanism comprises a guide rod, the guide rod is connected with the framework in a sliding manner through a guide rod hole, one end of the guide rod is connected with the arc-shaped pressure plate, the side surface of the other end of the guide rod is connected with a key, and the key is connected with a metal short-circuit block through an insulation plate; the key is close to the side of the limiting plate; fixed contact fixing blocks are fixed on the frameworks on the two sides of the guide rod, a second insulating plate is fixed on the fixed blocks, and contacts matched with the metal short-circuit blocks are fixed on the second insulating plate; the contact is connected with the signal wire harness through a contact pin, and the contact pin penetrates through the fixed contact fixing block; the contact pin is insulated from the fixed contact point fixed block through an insulating rubber layer.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. according to the application, the oval grip sphere is held by a hand, the arc-shaped pressure plate is extruded to move towards the limiting plate, the moving shaft and the guide rod move towards the limiting plate together, the distance between the spring stop block and the limiting plate is a moving stroke, the linear motion process of the arc-shaped pressure plate is stabilized through the matching of the first sliding through hole and the moving shaft, the detection switch mechanism moves together, the moving distance of the arc-shaped pressure plate is detected, the distance value is converted into a short-circuit signal, the short-circuit signal is transmitted to the controller through a signal wire harness, and the controller controls the electronic display screen to display the grip according to an access; the grip strength is checked through Hooke's law, the conversion problem of a hardware sensor is reduced, and the detection accuracy is improved.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of A in FIG. 1;

fig. 3 is a schematic view of the contact mating of the switching mechanism of fig.

Detailed Description

The scheme will now be further described with reference to the accompanying drawings.

EXAMPLE 1

As shown in fig. 1-3, a grip training device comprises a framework 4, wherein two ends of the framework 4 are internally connected to a spherical surface where a long axis of an oval grip sphere 1 is located, the framework 4 is connected with an arc-shaped pressure plate 5 through a reciprocating elastic mechanism, one side of the framework 4 opposite to the arc-shaped pressure plate 5 is connected with a limiting plate 9, the framework 4 between the reciprocating elastic mechanisms is further provided with a detection switch mechanism, and the reciprocating elastic mechanism is used for driving the arc-shaped pressure plate 5 to do linear reciprocating motion; the detection switch mechanism is used for detecting the elastic force change of the reciprocating elastic mechanism; the oval grip sphere 1 is further connected with a connecting pipe 2, the other end of the connecting pipe is connected with a display device, the display device comprises an electronic display screen and a controller, signal wiring harnesses 15 are arranged in the framework 4 and the connecting pipe 2, one ends of the signal wiring harnesses 15 are connected with the detection switch mechanism, the other ends of the signal wiring harnesses are connected with the controller, and the controller is further connected with the electronic display screen. The controller chooses the 51 singlechip commonly used for use, and current 5V DC power supply is chooseed for use to the power, and the singlechip is connected to the power, supplies power to detection switch mechanism through the IO mouth, and LCD1602 is chooseed for use to the electronic display screen. The display screen is used for displaying the holding force value.

The outer surface of the oval grip sphere 1 is connected with a finger ring sleeve 6, and the finger ring sleeve 6 is close to one side of the arc-shaped pressure plate 5.

Be provided with the slip through-hole on the skeleton 4, the slip through-hole includes first slip through-hole, and first slip through-hole is connected with the spring mounting hole, and the spring mounting hole is close to limiting plate 9 side, and the central axis of first slip through-hole and spring mounting hole is coaxial, and the internal diameter of first slip through-hole is less than the internal diameter of spring mounting hole. Such a design facilitates the fixation of the spring to the frame 4.

The reciprocating elastic mechanism comprises a moving shaft 7, the moving shaft 7 is matched with the first sliding through hole, one end of the moving shaft 7 is connected with the arc-shaped pressure plate 5, the other end of the moving shaft 7 is in threaded connection with a spring stop 14, a return spring 13 is further sleeved on the moving shaft 7, one end of the return spring 13 is fixed on the spring stop 14, and the other end of the return spring 13 is fixed at the bottom of the spring mounting hole.

The detection switch mechanism comprises a guide rod 8, the guide rod 8 is connected with the framework 4 in a sliding mode through a guide rod hole, one end of the guide rod 8 is connected with the arc-shaped pressure plate 5, the side face of the other end of the guide rod 8 is connected with a key A-6, and the key A-6 is connected with a metal short-circuit block through an insulation plate A-4; the key A-6 is close to the side of the limiting plate 9; a fixed contact fixing block A-1 is fixed on the framework 4 on two sides of the guide rod 8, a second insulating plate A-2 is fixed on the fixing block A-1, and a contact A-3 matched with the metal short-circuit block is fixed on the second insulating plate A-2; the contact A-3 is connected with the signal wire harness 15 through a contact pin A-5, and the contact pin A-5 penetrates through the fixed contact fixing block A-1; the contact pin A-5 is insulated from the fixed contact point fixing block A-1 through an insulating rubber layer.

The arc-shaped pressure plate 5 and the guide rod 8 are integrally formed, and the moving shaft 7 and the arc-shaped pressure plate 5 are detachably connected through a threaded hole and a screw rod; the other end of the moving shaft 7 is in threaded connection with a spring stop 14; the limiting plate 9 is a U-shaped plate, the included angle of the inner surface of the U-shaped plate is 90 degrees, and the depth of the U-shaped plate is smaller than the length of the fixing block A-1 and is 2-5mm smaller than the size of the fixing block A-1; the opening both sides of U template are connected with skeleton 4 with the bolt, have seted up corresponding screw hole 10 on skeleton 4 and the limiting plate 9, have seted up the recess 11 of placing the nut on the limiting plate 9. Such connection dismantled makes things convenient for the device to assemble.

Example 2

On the basis of the embodiment 1, the guide rod 8 is fixed by a key A-6, so that the metal short-circuit block connected with the insulating plate A-4 can be conveniently replaced; keys are oppositely arranged on two sides of the guide rod 8, metal short-circuit blocks are fixed on the keys through insulating plates A-4, fixing blocks A-1 on two sides of the guide rod 8 are respectively a first fixing block and a second fixing block, the first fixing block is close to the side of the framework 4 to fix the second insulating plate A-2, the second fixing block is close to the side of the limiting plate 9 to be provided with the second insulating plate A-2, and the total length of the second insulating plates A-2 on the first fixing block and the second fixing block is smaller than the length of the second fixing block; the staggered design ensures that the key A-6 can be installed in a staggered mode, and the installation difficulty is reduced;

when the opening both sides of U template are connected with skeleton 4 with the bolt, the bottom that just makes the U template of second fixed block is deformed, guarantees bolted connection's reliability.

As shown in fig. 3, the metal short-circuit block moves to the position-limiting plate, and the short-circuit point a-3 is used for detecting the short-circuit signal at the corresponding position by the single chip microcomputer, and the display screen is controlled to display the grip strength in a one-to-one correspondence manner according to the preset calibration value.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. The grip training device is characterized by comprising a framework (4), wherein two ends of the framework (4) are internally connected with a spherical surface where a long axis of an oval grip sphere (1) is located, the framework (4) is connected with an arc pressure plate (5) through a reciprocating elastic mechanism, one side, opposite to the arc pressure plate (5), of the framework (4) is connected with a limiting plate (9), the framework (4) between the reciprocating elastic mechanisms is further provided with a detection switch mechanism, and the reciprocating elastic mechanism is used for driving the arc pressure plate (5) to do linear reciprocating motion; the detection switch mechanism is used for detecting the elastic force change of the reciprocating elastic mechanism; oval grip spheroid (1) still is connected with connecting pipe (2), and the connecting pipe other end is connected with display device, and display device includes electronic display screen and controller, be provided with signal pencil (15) in skeleton (4) and connecting pipe (2), the one end of signal pencil (15) is connected detect on-off mechanism, the other end of signal pencil is connected controller, controller still connect electronic display screen.

2. A grip training device according to claim 1, wherein the oval grip sphere (1) has a finger ring (6) attached to its outer surface, the finger ring (6) being located adjacent to the curved pressure plate (5).

3. The grip strength training device according to claim 1, wherein the frame (4) is provided with a sliding through hole, the sliding through hole comprises a first sliding through hole, the first sliding through hole is connected with a spring mounting hole, the spring mounting hole is close to the side of the limiting plate (9), a central axis of the first sliding through hole and a central axis of the spring mounting hole are coaxial, and an inner diameter of the first sliding through hole is smaller than an inner diameter of the spring mounting hole.

4. The grip strength training device according to claim 3, wherein the reciprocating elastic mechanism comprises a moving shaft (7), the moving shaft (7) is matched with the first sliding through hole, one end of the moving shaft (7) is connected with the arc-shaped pressure plate (5), the other end of the moving shaft (7) is in threaded connection with a spring stop (14), a return spring (13) is further sleeved on the moving shaft (7), one end of the return spring (13) is fixed on the spring stop (14), and the other end of the return spring (13) is fixed at the bottom of the spring mounting hole.

5. The grip strength training device according to claim 1, wherein the detection switch mechanism comprises a guide rod (8), the guide rod (8) is slidably connected with the framework (4) through a guide rod hole, one end of the guide rod (8) is connected with the arc-shaped pressure plate (5), the side surface of the other end of the guide rod (8) is connected with a key (A-6), and the key (A-6) is connected with a metal short-connection block through an insulation plate (A-4); the key (A-6) is close to the side of the limit plate (9); fixed contact fixing blocks (A-1) are fixed on the frameworks (4) on the two sides of the guide rod (8), a second insulating plate (A-2) is fixed on the fixing blocks (A-1), and contacts (A-3) matched with the metal short connecting blocks are fixed on the second insulating plate (A-2); the contact (A-3) is connected with the signal wire harness (15) through a contact pin (A-5), and the contact pin (A-5) penetrates through the fixed contact fixing block (A-1); the contact pin (A-5) is insulated from the fixed contact point fixed block (A-1) through an insulating rubber layer.