CN218496299U

CN218496299U - Key stress tester

Info

Publication number: CN218496299U
Application number: CN202222164148.1U
Authority: CN
Inventors: 段小君
Original assignee: Suzhou Kaishuo Electromechanical Equipment Engineering Co ltd
Current assignee: Suzhou Kaishuo Electromechanical Equipment Engineering Co ltd
Priority date: 2022-08-17
Filing date: 2022-08-17
Publication date: 2023-02-17
Anticipated expiration: 2032-08-17

Abstract

The utility model discloses a button stress tester, which comprises an upper cover, a lower shell, a measuring head, a memory pointer, a force measuring pointer, a ratchet, a rack, a first shaft lever, an elastic part, a first stop block, a sleeve and a stop piece, wherein the surface of the upper cover is provided with scales; the side surface of the lower shell is provided with a mouth part, and one end of the measuring head penetrates through the mouth part and extends into the lower shell to be connected with the first shaft rod; the memory meter needle is connected to the top end of the first shaft lever through a sleeve, and the ratchet connected to the lower surface of the memory meter needle is contacted with the rack; the force measuring pointer is fixedly connected to the top end of the first shaft rod, the separation blade is connected to the lower surface of the middle of the force measuring pointer, and the separation blade pushes the memory pointer to rotate; the first stop block is connected to the bottom of the lower shell; two ends of the elastic piece are respectively connected with the first stop block and the middle part of the force measuring pointer. Because the friction force exists between the ratchet and the rack, the memory pointer is prevented from rotating, and therefore, the memory pointer stays at the maximum stress value. The user can read and record the maximum stress value conveniently.

Description

Key stress tester

Technical Field

The utility model relates to a button stress tester belongs to the test equipment field.

Background

With the progress of society and the development of science and technology, more and more electronic products and electrical equipment are applied to the daily life of people, and in the electronic products and the electrical equipment, a plurality of key devices can be applied, stress indexes when the keys are pressed are closely related to the use comfort level, and the keys need to be detected to judge whether the keys are qualified. The existing button stress test equipment has the defects that in the measurement process, the button displacement and the stress change amplitude are large, and after the measurement is finished, the force measuring pointer is reset, so that the maximum stress value is inconvenient to read and record. Therefore, how to record the maximum stress value occurring in the measurement process is a technical problem that needs to be solved urgently by those skilled in the art.

Disclosure of Invention

In order to overcome the above disadvantages, an object of the present invention is to provide a button stress tester. To solve the problems as set forth in the background section.

In order to achieve the above purpose, the utility model discloses a technical scheme is: a key stress tester comprises an upper cover, a lower cover and a measuring head, wherein scales are arranged on the surface of the upper cover, and the upper cover is covered on the lower cover; the side surface of the lower shell is provided with an opening part; the key stress tester is characterized by further comprising a memory meter pointer, a force measuring pointer, a ratchet, a rack, a first shaft rod, an elastic piece, a first stop block, a sleeve and a blocking piece; one end of the measuring head is connected with a rotating ring, the middle part of the rotating ring is provided with a mounting hole, the rotating ring penetrates through the opening part and extends into the lower shell to be connected with the first shaft rod, and the measuring head rotates to drive the first shaft rod to rotate; the bottom end of the first shaft lever is rotatably connected to the center of the lower shell; the top end of the first shaft lever penetrates through the upper cover and is fixedly connected with the force measuring pointer; the separation blade is connected to the lower surface of the middle part of the force measuring pointer; the rack is arc-shaped and is connected to the surface of the upper cover; the sleeve is rotatably sleeved on the first shaft lever, the memory meter needle is connected to the outer side face of the sleeve, and the ratchet is connected to the lower surface of the memory meter needle and is in contact with the rack; the blocking piece pushes the memory pointer to rotate; the first stop block is connected to the bottom of the lower shell and is arranged at one end close to the opening; the elastic component is arc-shaped, and two ends of the elastic component are respectively connected with the first stop block and the middle part of the measuring head.

In order to prevent gauge head striking oral area, cause the oral area to warp, the utility model discloses further set up to: the lower shell is further connected with a second stop block, the second stop block is close to the other end of the opening, and the second stop block is opposite to the first stop block. The second stopper reinforces the mouth part, so that the strength of the mouth part is higher.

The utility model discloses further setting up to: the elastic member is a coil spring.

The utility model discloses further set up to: the upper cover and the lower shell are circular.

In order to restrict the coil spring to stretch out and draw back according to predetermined orbit to and guide the gauge head and rotate, the utility model discloses further setting up to: the measuring head is characterized in that a guide rod is connected between the first stop block and the second stop block, the guide rod is arc-shaped, the spiral spring is sleeved on the guide rod, an arc-shaped sliding groove is formed in the middle of the measuring head, and the guide rod penetrates through the sliding groove. The measuring head rotates in an arc shape according to the shape of the guide rod, and the shape of the spiral spring is limited by the guide rod to form an arc shape.

The utility model discloses further set up to: the length of the rack is greater than that of the guide rod.

Compared with the prior art, the beneficial effects of the utility model are that: the sleeve is sleeved on the first shaft rod, the memory meter needle is connected to the outer side face of the sleeve, the ratchet is connected to the lower surface of the memory meter needle, and the ratchet is in contact with the rack. When the force measuring pointer moves, the elastic piece is compressed, the deformation of the elastic piece is in positive correlation with the stress value of the key, and the stress is displayed on the scale; the separation blade connected to the lower surface of the middle part of the force measuring pointer pushes the memory pointer to rotate, and the memory pointer rotates to the maximum value along with the force measuring pointer; because the friction force exists between the ratchet and the rack, the memory pointer is prevented from rotating, and therefore, the memory pointer stays at the maximum stress value. The user can read and record the maximum stress value conveniently.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.

Drawings

Fig. 1 is a schematic top view of a key stress tester according to a preferred embodiment of the present invention;

fig. 2 is an exploded view of the button stress tester in fig. 1.

FIG. 3 is a schematic view of the installation structure among the first shaft, the sleeve, the memory pointer and the force measuring pointer.

In the figure: 1. an upper cover; 2. a measuring head; 3. calibration; 4. a ratchet; 5. a rack; 6. memorizing a pointer; 7. a force measuring pointer; 8. a lower case; 9. rotating the ring; 10. mounting holes; 11. an elastic member; 12. a mouth; 13. a second stopper; 14. a first shaft lever; 15. a sleeve; 16. a baffle plate; 19. a first stopper; 20. a guide bar; 21. a chute.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.

Referring to fig. 1-3, the key stress tester in the present embodiment includes an upper cover 1, a lower cover 8, and a measuring head 2, wherein the surface of the upper cover 1 is provided with a scale 3, and the upper cover is covered on the lower cover 8; the side surface of the lower shell 8 is provided with a mouth part 12; the key stress tester also comprises a memory meter needle 6, a force measuring pointer 7, a ratchet 4, a rack 5, a first shaft lever 14, an elastic piece 11, a first stop block 19, a sleeve 15 and a baffle 16; one end of the measuring head 2 is connected with a rotating ring 9, the middle part of the rotating ring 9 is provided with a mounting hole 10, the rotating ring 9 penetrates through a mouth part 12 and extends into the lower shell 8 to be connected with a first shaft lever 14, and the measuring head 2 rotates to drive the first shaft lever 14 to rotate; the bottom end of the first shaft lever 14 is rotatably connected to the center of the lower shell 8; the top end of the first shaft lever 14 passes through the upper cover 1 and is fixedly connected with the force measuring pointer 7; the baffle 16 is connected to the lower surface of the middle part of the force measuring pointer 7; the rack 5 is arc-shaped and is connected to the surface of the upper cover 1; the sleeve 15 is rotatably sleeved on the first shaft lever 14, the memory meter needle 6 is connected to the outer side surface of the sleeve 15, and the ratchet 4 is connected to the lower surface of the memory meter needle 6 and is in contact with the rack 5; the blocking piece 16 pushes the memory pointer 6 to rotate; the first stop block 19 is connected with the bottom of the lower shell 8 and is arranged near one end of the mouth part 12; the elastic member 11 is arc-shaped, and two ends of the elastic member are respectively connected with the first stop block 19 and the middle part of the measuring head 2.

A second stopper 13 is further connected to the lower shell 8, the second stopper 13 is arranged close to the other end of the mouth portion 12, and the second stopper 13 is arranged opposite to the first stopper 19. The second stopper 13 reinforces the mouth portion 12 to make the mouth portion 12 stronger. The elastic member 11 is a coil spring. The upper cover 1 and the lower shell 8 are circular.

An arc-shaped guide rod 20 is connected between the first stop block 19 and the second stop block 13, the spiral spring is sleeved on the guide rod 20, an arc-shaped sliding groove 21 is formed in the middle of the measuring head 2, and the guide rod 20 penetrates through the sliding groove 21. The probe 2 rotates in a circular arc shape according to the shape of the guide rod 20, and the shape of the coil spring is limited by the guide rod 20 to form a circular arc shape. The length of the rack 5 is greater than the length of the guide bar 20.

To sum up, the utility model discloses a key stress tester's application method is: the left side of the measuring head 2 is contacted with the key, pressure is applied to the key, the key deforms and generates a reaction force on the side head 2, the measuring head 2 generates rightward deflection displacement, a first shaft lever 14 connected with the measuring head 2 rotates along with the deflection displacement, the force measuring pointer 7 synchronously rotates, and the push plate pushes the memory pointer 6 and the sleeve to rotate around the first shaft lever 14 to reach the maximum stress value; the ratchet 4 connected to the lower surface of the memory pointer 6 and the rack 5 connected to the upper cover 1 have friction force therebetween, which prevents the memory pointer 6 from further rotating, so that the memory pointer 6 stays at the maximum stress. The user can read and record the maximum stress value conveniently. When the memory pointer 6 needs to be reset, the end of the memory pointer 6 far away from the sleeve is lifted away from the upper cover 1, the memory pointer 6 is elastically bent, the ratchet 4 is separated from the rack 5, and then the memory pointer 6 is rotated to the original position.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.

Claims

1. A key stress tester comprises an upper cover, a lower cover and a measuring head, wherein scales are arranged on the surface of the upper cover, and the upper cover is covered on the lower cover; the side surface of the lower shell is provided with an opening part; the key stress tester is characterized by further comprising a memory meter pointer, a force measuring pointer, a ratchet, a rack, a first shaft rod, an elastic piece, a first stop block, a sleeve and a blocking piece; one end of the measuring head is connected with a rotating ring, the middle part of the rotating ring is provided with a mounting hole, the rotating ring penetrates through the opening part and extends into the lower shell to be connected with the first shaft rod, and the measuring head rotates to drive the first shaft rod to rotate; the bottom end of the first shaft lever is rotatably connected to the center of the lower shell; the top end of the first shaft lever penetrates through the upper cover and is fixedly connected with the force measuring pointer; the separation blade is connected to the lower surface of the middle part of the force measuring pointer; the rack is arc-shaped and is connected to the surface of the upper cover; the sleeve is rotatably sleeved on the first shaft lever, the memory meter needle is connected to the outer side face of the sleeve, and the ratchet is connected to the lower surface of the memory meter needle and is in contact with the rack; the blocking piece pushes the memory pointer to rotate; the first stop block is connected to the bottom of the lower shell and is arranged at one end close to the opening; the elastic component is arc-shaped, and two ends of the elastic component are respectively connected with the first stop block and the middle part of the measuring head.

2. The key stress tester according to claim 1, wherein the lower case is further connected with a second stopper disposed near the other end of the mouth, the second stopper being disposed opposite to the first stopper.

3. The key stress tester according to claim 2, wherein the elastic member is a coil spring.

4. The key stress tester of claim 3, wherein the upper cover and the lower shell are circular.

5. The key stress tester according to claim 4, wherein a guide rod is connected between the first stopper and the second stopper, the guide rod is arc-shaped, the coil spring is sleeved on the guide rod, an arc-shaped chute is arranged in the middle of the measuring head, and the guide rod penetrates through the chute.

6. The key stress tester of claim 5, wherein the length of the rack is greater than the length of the guide bar.