CN213465094U

CN213465094U - Hand-held joint percussion instrument with adjustable knocking force

Info

Publication number: CN213465094U
Application number: CN202020820077.4U
Authority: CN
Inventors: 王岩
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-15
Filing date: 2020-05-15
Publication date: 2021-06-18
Anticipated expiration: 2030-05-15

Abstract

The utility model provides a hand-held type joint percussion instrument of dynamics of strikeing adjustable belongs to the percussion hammer field. The electric hammer comprises a rectangular shell, wherein the shell is hollow, a knocking hole is formed in the shell, a rotating shaft is arranged at the bottom in the shell, a rotating ring is sleeved outside the rotating shaft through a bearing and connected with a connecting rod, the other end of the connecting rod is connected with a knocking hammer, a screw hole is formed in the bottom of the rectangular shell, a screw is screwed in the screw hole, and one end of the screw, which is positioned in the shell, is fixedly connected with an electromagnet; the bottom is equipped with the mount table in the shell, is equipped with the collar on the connecting rod, passes through spring coupling between collar and the mount table, and the bottom is equipped with battery and controller in the shell, is equipped with the perforation of acting as go-between on the shell, and the one end of acting as go-between is connected to the connecting rod, and the other end passes the perforation of acting as go-between to be connected with a pull ring. The knocking force can be adjusted quantitatively.

Description

Hand-held joint percussion instrument with adjustable knocking force

Technical Field

The utility model provides a hand-held type joint percussion instrument of dynamics of strikeing adjustable belongs to the percussion hammer field.

Background

When a patient suffers from a neurological disease or suffers from nerve damage, a doctor can use a percussion hammer to knock the knee reflex nerve of the knee and observe the condition of the knee reflex to judge the condition of nerve damage or recovery. The observation of the knee jerk reflex intensity of the patient according to the knocking strength is an important basis for judging the nerve damage degree. So the knocking force is required to be even during the percussion test, and each force needs to be tested for many times. However, in the actual operation process, the balance of the force of each time of knocking by the operator holding the percussion hammer cannot be guaranteed, and the specific force value for improving the force percussion is not quantified, so that the quantified detection result cannot be recorded.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a hand-held type joint percussion instrument of dynamics of strikeing adjustable can make the dynamics of strikeing at every turn the same, and the dynamics of adjustment striking that can quantify.

The utility model discloses a hand-held type joint percussion device with adjustable knocking force, including the rectangle shell, the shell is inside hollow, is equipped with the knocking hole on the shell, and the bottom is equipped with the pivot in the shell, and the pivot is overlapped through the bearing and is had rotatory ring, is connected with the connecting rod on the rotatory ring, and the connecting rod other end is connected with the knocking hammer, and rectangle shell bottom is equipped with the screw, and the screw is internal-rotated to have the screw rod, and the screw rod lies in the shell one end fixedly connected with electro-; the bottom is equipped with the mount table in the shell, is equipped with the collar on the connecting rod, passes through spring coupling between collar and the mount table, and the bottom is equipped with battery and controller in the shell, is equipped with the perforation of acting as go-between on the shell, and the one end of acting as go-between is connected to the connecting rod, and the other end passes the perforation of acting as go-between to be connected with a pull ring.

The handheld joint percussion device with adjustable knocking force comprises a controller, a power supply, a relay A, a relay B, an energy storage switch and a release switch, wherein one end of a coil of the relay A is connected to one end of the energy storage switch and one end of a first normally open contact of the relay A respectively, the other end of the energy storage switch is connected to the positive electrode of the power supply, the other end of the first normally open contact of the relay A is connected to the positive electrode of the power supply through the normally closed contact of the relay B, and the other end of the; one end of a second normally open contact of the relay A is connected to the positive pole of the power supply, the other end of the second normally open contact of the relay A is connected to the negative pole of the power supply through a coil of the electromagnet, and the power supply is a storage battery.

The handheld joint percussion device with adjustable knocking force is characterized in that a buffer block is arranged below one end of the knocking hole, which is positioned on the inner side of the shell.

The hand-held joint percussion instrument with adjustable knocking force is characterized in that a wiring terminal of the controller is connected to a coil of the electromagnet through a spiral conducting wire.

The hand-held joint percussion instrument with adjustable knocking force is characterized in that the connecting rod is made of iron.

The handheld joint percussion device with adjustable knocking force is characterized in that a groove which is the same as the extension direction of the screw rod is arranged on the screw rod, and a graduated scale is arranged in the groove.

Compared with the prior art, the utility model beneficial effect does:

hand-held type joint percussion device of dynamics of knocking adjustable, compare with current percussion hammer, the staff need not go to beat in person, only need will strike the hole top and need strike test department at patient's knee joint to press release button, the percussion hammer in the shell will be driven by the spring and hit the patient knee, use same spring to drive under the same condition of starting point and terminal point and strike the hammer and strike the patient, can make the dynamics of knocking at every turn all the same. The starting point of the knocking hammer is adjusted by adjusting the position of the electromagnet, so that the knocking force can be adjusted, strength scales are recorded on the screw rod, quantitative testing can be performed on a patient, and clearer cognition on the injury degree and the recovery degree is improved.

Drawings

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

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is a striking state diagram of the present invention;

FIG. 4 is a cross-sectional view B-B of FIG. 1;

fig. 5 is an electrical schematic diagram of the present invention.

In the figure: 1. a housing; 2. a knock hole; 3. knocking hammers; 4. a pull ring; 5. a release switch; 6. a helical wire; 7. An electromagnet; 8. a connecting rod; 9. a buffer block; 10. a rotating ring; 11. a mounting ring; 12. a spring; 13. an installation table; 14. a pull wire; 15. perforating a pull wire; 16. a screw; 17. a screw hole; 18. a storage battery; 19. an energy storage switch; 20. a controller; 21. a relay A; 22. a relay B; 23. a rotating shaft.

Detailed Description

The following is combined with the utility model to further explain the embodiment of the utility model:

example 1: as shown in fig. 1-5, the handheld joint percussion device with adjustable percussion strength of the present invention comprises a rectangular housing 1, the housing 1 is hollow, a percussion hole 2 is provided on the housing 1, a rotating shaft 23 is provided at the bottom of the housing 1, a rotating ring 10 is sleeved outside the rotating shaft 23 through a bearing, the rotating ring 10 is connected with a connecting rod 8, the other end of the connecting rod 8 is connected with a percussion hammer 3, a screw hole 17 is provided at the bottom of the rectangular housing 1, a screw 16 is screwed in the screw hole 17, and one end of the screw 16 located in the housing 1 is fixedly connected with an electromagnet 7; the bottom is equipped with mount table 13 in the shell 1, is equipped with collar 11 on the connecting rod 8, is connected through spring 12 between collar 11 and the mount table 13, and the bottom is equipped with battery 18 and controller 20 in the shell 1, is equipped with the perforation 15 of acting as go-between on the

shell

1, and 14 one end of acting as go-between is connected to connecting rod 8, and the other end passes the perforation 15 of acting as go-between to be connected with a pull ring 4. The battery 18 supplies power to the controller 20 and the electromagnet 7. The screw 16 is rotated according to the force required to be knocked to adjust the height position of the electromagnet 7, the starting point of the knocking hammer 3 is determined, the pull ring 4 is pulled, the pull ring 4 drives the connecting rod 8 to rotate, the extension force of the spring 12 is overcome, and the spring 12 stores energy until the connecting rod 8 is sucked by the electromagnet 7. The shell 1 is held by hand, the knocking hole 2 is aligned to a position to be tested of a patient, a loop between the electromagnet 7 and the storage battery 18 is cut off through the controller 20, the spring 12 stretches to push the connecting rod 8, the connecting rod 8 drives the knocking hammer 3 to impact the knocking hole 2 in an arc line, the end part of the knocking hammer 3 is exposed out of the knocking hole 2, and the position to be tested of the patient is hit. And (6) completing the test. If the knee reflex arc nerve injury is measured, the knee jerk reflex can be observed only when the knee is knocked with great force, and knocking force is recorded. When the recovery condition of a patient is observed, the knocking force is adjusted to be small, if the minimum force of knee jerk reflex during knocking is smaller than the knocking force record during injury, the knee jerk reflex nerve of the patient is recovered, the specific recovery condition is very visual represented by the knocking force, and the recovery condition is easy to judge.

When the screw rod rotates downwards, the electromagnet is driven to move downwards, if the electromagnet is required to attract the connecting rod, a spring needs to be further compressed, and meanwhile, the arc distance from the knocking hammer to the knocking port is increased. The acceleration of the knocking hammer is stronger, the acceleration distance is longer, and the knocking force is larger under the condition that the weight of the knocking hammer is not changed. In the same way, the rotating screw rod drives the electromagnet to move upwards, so that the knocking force is reduced. Is different from the existing scheme of knocking the linear track of the hammer. This application has used the hammer of strikeing to pass through the rotary rod and has driven rotatory striking, and the hammer of strikeing walks one section pitch arc, and its acceleration distance is longer, can produce the striking power scope wider, and under the condition that the hammer weight is the same, the biggest dynamics of strikeing of production is bigger. Can be adapted to patients with more conditions.

The hand-held joint percussion instrument with adjustable knocking force is characterized in that the controller 20 comprises a relay A21, a relay B22, an energy storage switch 19 and a release switch 5, one end of a coil of the relay A21 is connected to one end of the energy storage switch 19 and one end of a first normally open contact of the relay A21 respectively, the other end of the energy storage switch 19 is connected to the positive electrode of a power supply, the other end of the first normally open contact of the relay A21 is connected to the positive electrode of the power supply through the normally closed contact of the relay B22, and the other end of the coil of the relay A21 is connected to; one end of a second normally open contact of the relay A21 is connected to the positive pole of the power supply, and the other end of the second normally open contact is connected to the negative pole of the power supply through the coil of the electromagnet 7, and the power supply is the storage battery 18. Before needing to make the electro-magnet 7 hold on connecting rod 8, need press energy storage switch 19, make relay A21's coil electrified, relay A21's normally open contact is whole closed, make relay A21's coil can obtain the continuous power supply of the return circuit that first normally open contact is connected, make relay A21's coil continuously electrified, relay A21's normally open contact continuously closes, the coil of electro-magnet 7 can keep putting through with battery 18, then the rethread pull ring 4 with act as go-between 14 with connecting rod 8 draw to electro-magnet 7 department and be held by electro-magnet 7. When the knocking hole 2 is aligned with a position where a patient needs to knock a test, the release switch 5 is pressed, the coil of the relay B22 is connected with the storage battery 18, the normally closed contact of the relay B22 is disconnected, the loop between the coil of the relay A21 and the storage battery 18 is disconnected, the normally open contact of the relay A21 is disconnected, the loop between the electromagnet 7 and the storage battery 18 is disconnected, the electromagnet 7 loses suction force, and the extension force of the spring 12 pushes the connecting rod 8 to drive the knocking hammer 3 to knock. The energy storage switch 19 is positioned at the bottom of the shell 1, and the pull ring 4 is pulled after the energy storage switch 19 is pressed down conveniently. The release switch 5 is arranged on the side face of the shell 1, when the side face of the handheld shell 1 is aligned with a knocking part, the release switch 5 is conveniently pressed down, and both the release switch 5 and the energy storage switch 19 are non-self-locking switches, namely are pressed down to be closed and are opened after being loosened.

The handheld joint percussion device with adjustable knocking force is characterized in that a buffering block 9 is arranged below one end, located on the inner side of the shell 1, of the knocking hole 2. Avoid connecting rod 8 and strike hole 2 and take place hard collision, lead to damaging.

In the hand-held joint percussion instrument with adjustable knocking force, the terminal of the controller 20 is connected to the coil of the electromagnet 7 through the spiral lead 6. Because the position of the electromagnet 7 needs to be adjusted up and down, the distance between the wiring point of the electromagnet 7 and the wiring point of the controller 20 is constantly changed, the spiral lead 6 can be used for stretching, and the lead is effectively prevented from being broken due to the change of the distance.

The hand-held joint percussion instrument with adjustable knocking force is characterized in that the connecting rod 8 is made of iron. So that the connecting rod 8 can be attracted by the electromagnet 7.

The handheld joint percussion device with adjustable knocking force is characterized in that a groove in the same extending direction as the screw 16 is formed in the screw 16, and a graduated scale is arranged in the groove. The scale of scale is uneven scale, puts the test end of pressure tester at the department of strikeing, through constantly releasing the strike hammer 3, tries out 0.1 joule, 0.2 joule, 0.3 joule, 0.4 joule, 0.5 joule, 0.6 joule 0.7 joule, 0.8 joule, 0.9 joule, 1 joule respectively correspond the position that screw rod 16 hung out from screw 17 and mark. Has been used by the subsequent test patient to measure the corresponding percussive force of the knee jerk reflex.

Claims

1. A hand-held joint percussion instrument with adjustable knocking force comprises a rectangular shell (1), wherein the shell (1) is hollow, and is characterized in that a knocking hole (2) is formed in the shell (1), a rotating shaft (23) is arranged at the bottom in the shell (1), a rotating ring (10) is sleeved outside the rotating shaft (23) through a bearing, a connecting rod (8) is connected onto the rotating ring (10), the other end of the connecting rod (8) is connected with a knocking hammer (3), a screw hole (17) is formed in the bottom of the rectangular shell (1), a screw rod (16) is screwed in the screw hole (17), and one end of the screw rod (16) positioned in the shell (1) is fixedly connected with an electromagnet (7); the bottom is equipped with mount table (13) in shell (1), be equipped with collar (11) on connecting rod (8), be connected through spring (12) between collar (11) and mount table (13), the bottom is equipped with battery (18) and controller (20) in shell (1), be equipped with on shell (1) and act as go-between perforation (15), act as go-between (14) one end is connected to connecting rod (8), the other end passes and acts as go-between perforation (15) to be connected with a pull ring (4).

2. The hand-held joint percussion instrument with adjustable knocking strength according to claim 1, wherein the controller (20) comprises a relay A (21), a relay B (22), an energy storage switch (19) and a release switch (5), one end of a coil of the relay A (21) is respectively connected to one end of the energy storage switch (19) and one end of a first normally open contact of the relay A (21), the other end of the energy storage switch (19) is connected to a positive electrode of a power supply, the other end of the first normally open contact of the relay A (21) is connected to the positive electrode of the power supply through the normally closed contact of the relay B (22), and the other end of the coil of the relay A (21) is connected to a negative electrode of the power supply; one end of a second normally open contact of the relay A (21) is connected to the positive pole of a power supply, the other end of the second normally open contact is connected to the negative pole of the power supply through a coil of the electromagnet (7), and the power supply is a storage battery (18).

3. The hand-held joint percussion device with adjustable knocking force according to claim 2, wherein the knocking hole (2) is provided with a buffer block (9) below one end of the inner side of the housing (1).

4. The hand-held joint plexor with adjustable tapping force according to claim 3, wherein the terminals of the controller (20) are connected to the coil of the electromagnet (7) through a helical wire (6).

5. The hand-held joint percussion device with adjustable knocking force according to claim 4, wherein the connecting rod (8) is iron.

6. The hand-held joint percussion device with adjustable knocking strength according to claim 5, wherein the screw rod (16) is provided with a groove in the same extending direction as the screw rod (16), and a graduated scale is arranged in the groove.