A fast-response micro switch and its use method

Abstract

The present invention relates to the field of micro switch technology, and in particular to a fast-response micro switch and a method of using the same, which solves the problems of slow response speed, fast contact wear and high energy consumption of micro switches in the prior art. A fast-response micro switch and a method of using the same, including a housing, a pressure rod, a common end plate, a normally open end plate and a normally closed end plate, realizes fast opening and closing and rotation of contacts through an air supply structure and a two-position switchable contact structure, significantly improves the response speed and stability of the micro switch, prolongs the service life of the contacts, and reduces energy consumption. The present invention achieves the technical effect of improving the response speed, reliability and economy of electronic equipment and control systems.

Description

Technical Field

[0001] The present invention relates to the technical field of micro switches, and in particular to a fast-response micro switch and a use method thereof. Background Art

[0002] In the field of electronic equipment and control systems, micro switches are key components, and their performance directly affects the response speed and stability of the system. Traditional micro switches mostly use a one-way spring mechanism, relying on the compression and rebound of the spring to achieve the movement of the contact to close and open the circuit. However, this design has obvious limitations: the physical properties of the spring, such as the rebound speed and force changes, often limit the response speed of the switch and may cause unstable switching action. In addition, the frequent contact and separation of a single contact also accelerates its wear, thereby shortening the service life of the switch.

[0003] In response to these problems, technicians conducted in-depth research and proposed a double-contact micro switch design using electromagnetic drive. By introducing electromagnetic force to assist or replace the traditional spring force, the contacts can be opened and closed quickly and accurately. The application of electromagnetic drive not only significantly improves the response speed of the switch, but also makes the switch action more stable and reliable due to its stronger controllability, effectively reducing the performance fluctuations caused by spring fatigue or force changes. This design has shown significant advantages in practical applications, especially in situations where fast response and high stability are required.

[0004] However, despite the significant progress made in the electromagnetically driven dual-contact micro switch, it also has some problems: First, the electromagnetic drive system requires additional power supply and control circuits, which increases the complexity and energy consumption of the system. For low-power application scenarios, this is a factor that needs to be weighed. Secondly, although the dual-contact design disperses the wear of a single contact, the frequent action of electromagnetic force may still cause electrical erosion and mechanical wear to the contacts, especially under high-frequency and high-load conditions of use. In addition, the instantaneous high current generated by the electromagnetic drive may also interfere with surrounding electronic components, affecting the stability and reliability of the entire electronic system.

[0005] Therefore, how to reduce energy consumption, extend contact life and reduce electromagnetic interference while maintaining the fast response and stable performance of the micro switch has become a key issue that needs to be urgently solved in the current technological development. Summary of the invention

[0006] The purpose of the present invention is to provide a fast-response micro switch and a method of using the same, which solves the problems of slow response speed, fast contact wear and high energy consumption of the micro switch in the prior art.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A quick-response micro switch and a method of using the same, comprising a housing, a pressure rod, a common end plate, a normally open end plate and a normally closed end plate, wherein the pressure rod is slidably arranged on the top of the housing, and the end portion thereof extends into the interior of the housing, the common end plate is arranged at the bottom of the housing, the normally open end plate and the normally closed end plate are symmetrically arranged on one side of the housing, and the ends of the common end plate, the normally open end plate and the normally closed end plate all extend into the interior of the housing, a toggle plate rotatably connected to the inner wall of the housing is arranged at the inner center position of the housing, and a toggle plate rotatably connected to the inner wall of the housing and arranged at the end thereof is arranged at the top of one end of the toggle plate A trigger rod is located between the normally open end plate and the normally closed end plate, and the other end is connected to a contact rod. A chamber is provided inside the housing and close to the pressure rod. An air supply structure is provided inside the chamber. The driving end of the air supply structure is connected to one side of the pressure rod, and the output end is connected to a pusher provided at the bottom of the normally open end plate through an air pipe. A two-position switchable contact structure is movably provided at one end of the trigger rod, and one end of the end of the common end plate is connected to the bottom of the contact rod through an arc-shaped spring sheet, and the other end is connected to the two-position switchable contact structure through an arc-shaped extended connecting piece.

[0009] The air supply structure includes a main air cylinder, a moving column, an air pipe and an air bag. The main air cylinder is installed inside the chamber, one side of the chamber is connected to the inside of the shell, one end of the moving column is slidably arranged inside the main air cylinder and connected to the internal piston plate, and the other end is connected to the side wall of the pressure rod through a connecting rod. One side of the bottom of the inner cavity of the shell is provided with a mounting groove adapted to the air bag. The air bag is connected to the main air cylinder through the air pipe, and the top of the air bag is connected to the bottom of the normally open end plate through a linkage bracket;

[0010] The diameter of the main gas cylinder is five times the diameter of the moving column.

[0011] Preferably, the toggle plate is V-shaped, one end of which is connected to the end of the contact rod and the contact rod is horizontally arranged, and the other end is in contact with the bottom of the trigger rod.

[0012] Preferably, a rotation groove is opened on one side of the shell, the side wall of the normally open end plate is rotationally connected to the inner wall of the rotation groove, the linkage bracket is in a Z shape, and the top of the linkage bracket is connected to the bottom of the normally open end plate, and the bottom is connected to the top of the airbag.

[0013] Preferably, the double-position switchable contact structure includes a movable plate, two contacts, a round rod, a pulling rope and a circular ring, the end of the trigger rod is provided with a movable groove, and the two sides of the movable groove are provided with sliding grooves, the movable plate is arranged inside the movable groove and the two sides of the movable plate cooperate with the sliding grooves through sliders, the round rod is arranged on one side of the pressure rod and the end thereof passes through the top of the shell through a sliding sleeve, and the other end is connected with a circular plate, the top of the circular plate is elastically connected to the inner wall of the shell through a plurality of limit springs, a plurality of circular rings are provided and all of them are movably sleeved on the outside of the pulling rope, the circular ring close to the circular plate is connected to the top of the inner cavity of the shell, and the remaining circular rings are connected to the side wall of the trigger rod, one end of the pulling rope is connected to the circular plate, and the other end is connected to the slider, and one end of the movable plate is elastically connected to the inner wall of the movable groove through a plurality of reset springs;

[0014] The distance between the top end of the round rod and the top of the housing is the same as the distance between the center points of the two contacts.

[0015] Preferably, a middle groove is provided on one side of the arc-shaped spring piece, a support spring is obliquely arranged inside the middle groove, one end of the support spring is connected to the contact rod, and the other end is connected to the inner wall of the outer shell, one side of the top of the trigger rod is elastically connected to the inner wall of the outer shell through a tension spring, and the top of the movable column is elastically connected to the inner wall of the chamber through a return spring.

[0016] According to a second aspect of the present invention, a method for using a fast-response micro switch is provided:

[0017] S1: Startup preparation phase:

[0018] Install the micro switch in the electronic equipment or control system, and ensure that the housing, pressure rod, common end plate, normally open end plate, normally closed end plate, air supply structure: including the main air cylinder, moving column, air pipe and air bag, double-position switchable contact structure: including movable plate, contact, round rod, pull rope and ring, and all springs: support spring, tension spring, return spring, are connected correctly, check whether the air supply structure, double-position switchable contact structure and all springs are in the initial state and ready for operation;

[0019] S2: External force triggering stage:

[0020] When the micro switch needs to be operated, an external force is applied to the pressure rod on the top of the housing to make it slide on the top of the housing. The sliding of the pressure rod will drive the moving column and the piston plate to move in the main gas cylinder, thereby compressing the gas. At the same time, the sliding of the pressure rod will drive the contact rod to move, and the movement of the contact rod will drive the toggle plate to rotate. The rotation of the toggle plate will drive the trigger rod to rotate. At the same time, the round rod moves synchronously with the pressure rod to prepare for contact switching.

[0021] S3: Contact opening and closing and switching stage:

[0022] The air supply structure delivers gas to the push part at the bottom of the normally open end plate through the air pipe, so that the airbag expands and pushes the normally open end plate upward through the Z-shaped linkage bracket to realize the rapid opening and closing of the contacts. At the same time, the movement of the round rod drives the movable plate to slide in the movable groove through the pulling rope to realize the switching and rotation of the two contacts. If there is no need to control the switching of the contacts separately, only the pressure rod can be pressed;

[0023] S4: Reset and waiting stage:

[0024] When the external force is removed, under the joint action of the support spring, tension spring and return spring, the pressure rod, moving column, movable plate and other components will return to their initial positions, and the micro switch will enter the standby state, waiting for the next operation. At this time, the two contacts in the double-position switchable contact structure have rotated to the new working state, ready for the next operation.

[0025] The present invention has the following beneficial effects:

[0026] 1. The present invention significantly improves the response speed of the micro switch by introducing an air supply structure and utilizing the rapid response characteristics of the gas. Compared with the traditional micro switch that relies on the compression and rebound of the spring to open and close the contacts, the air supply structure achieves rapid and smooth movement of the contacts by applying additional force to the normally open end plate. The problems of limited response speed and unstable movement caused by the physical property limitations of the spring (such as rebound speed and force changes) are avoided. At the same time, the design of the V-shaped toggle plate enables a more even distribution of force during the rotation process, further improving the opening and closing efficiency and stability of the contacts. Therefore, the micro switch of the present invention performs well in situations where rapid response is required, and can significantly improve the overall response speed and stability of the system;

[0027] 2. In traditional micro switches, the frequent contact and separation of a single contact accelerates its wear, thereby shortening the service life of the switch. The present invention, by adopting a dual-position switchable contact structure, realizes the alternating use of two contacts, effectively reduces the frequency of use of a single contact, and extends the service life of the contact. In addition, when any contact is damaged, the other contact can immediately take over the work to serve an emergency purpose, ensuring the continuous and stable operation of the micro switch. Not only does it improve the reliability of the micro switch itself, but it also enhances the stability and reliability of the entire electronic system or control system. Under high-frequency and high-load usage conditions, the micro switch of the present invention exhibits higher durability and reliability, bringing users lower maintenance costs and higher usage efficiency;

[0028] 3. Compared with the electromagnetic drive system, the air supply structure adopted in the present invention significantly simplifies the structural design of the micro switch while maintaining efficient response. The electromagnetic drive system usually requires additional power supply and control circuit, which increases the complexity and energy consumption of the system. The air supply structure uses the natural compression and expansion characteristics of the gas to realize the opening and closing of the contacts, without the need for complex power supply and control circuit, thereby reducing the energy consumption and cost of the system. In addition, the use of the air supply structure also avoids the electromagnetic interference problem that may be caused by electromagnetic drive, and improves the overall stability and compatibility of the electronic system. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0030] Figure 1 It is a schematic diagram of the housing and the pressure rod structure of the present invention;

[0031] Figure 2 This is a schematic diagram of the structure of the normally closed end plate and the normally open end plate of the present invention;

[0032] Figure 3 It is a schematic diagram of the structure of the main air cylinder, air pipe and air bag of the present invention;

[0033] Figure 4 It is a schematic diagram of the structure of the toggle plate of the present invention;

[0034] Figure 5 It is a schematic diagram of the trigger rod, movable plate and contact structure of the present invention;

[0035] Figure 6 This is a schematic diagram of the linkage bracket and the mounting slot structure of the present invention;

[0036] Figure 7 It is a schematic diagram of the main air cylinder and the pressure rod structure of the present invention;

[0037] Figure 8 It is a schematic diagram of the structure of the movable column and the pressure rod of the present invention;

[0038] Fig. 9 This is a schematic diagram of the pulling rope and circular plate structure of the present invention;

[0039] Fig.10 This is a schematic diagram of the pulling rope and round rod structure of the present invention;

[0040] Fig.11 It is a schematic diagram of the movable plate and the pulling rope structure of the present invention.

[0041] In the figure: 1. pressure rod; 2. shell; 3. common end plate; 4. normally open end plate; 5. normally closed end plate; 6. contact rod; 7. main air cylinder; 8. trigger rod; 9. air pipe; 10. moving column; 11. return spring; 12. connecting rod; 13. air bag; 14. round rod; 15. pulling rope; 16. arc-shaped spring piece; 17. middle groove; 18. supporting spring; 19. toggle plate; 20. arc-shaped extension connecting piece; 21. tension spring; 22. movable plate; 23. contact; 24. ring; 25. round plate; 26. linkage bracket; 27. mounting groove. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0043] Embodiment 1, refer to Figure 1-11A fast-response micro switch comprises a housing 2, a pressure rod 1, a common end plate 3, a normally open end plate 4 and a normally closed end plate 5, the pressure rod 1 is slidably arranged on the top of the housing 2, and the end portion extends into the housing 2, the common end plate 3 is arranged at the bottom of the housing 2, the normally open end plate 4 and the normally closed end plate 5 are symmetrically arranged on one side of the housing 2, and the ends of the common end plate 3, the normally open end plate 4 and the normally closed end plate 5 all extend into the housing 2, a toggle plate 19 is provided at the inner center of the housing 2 with a rotation connection to the inner wall of the housing 2, a trigger rod 8 is provided at the top of one end of the toggle plate 19 with a rotation connection to the inner wall of the housing 2 and an end portion is arranged between the normally open end plate 4 and the normally closed end plate 5, and a contact rod 6 is connected to the other end, the housing 2 is inside and close to the pressure rod 1 A chamber is provided at the position, and an air supply structure is provided inside the chamber. The driving end of the air supply structure is connected to one side of the pressure rod 1, and the output end is connected to a pusher provided at the bottom of the normally open end plate 4 through an air pipe 9. A two-position switchable contact structure is movably provided at one end of the trigger rod 8. One end of the common end plate 3 is connected to the bottom of the contact rod 6 through an arc-shaped spring sheet 16, and the other end is connected to the two-position switchable contact structure through an arc-shaped extended connecting piece 20. The toggle plate 19 is V-shaped, one end is connected to the end of the contact rod 6 and the contact rod 6 is horizontally arranged, and the other end is in contact with the bottom of the trigger rod 8. When the pressure rod 1 is subjected to an external force, it will drive the moving column 10 connected thereto to slide in the main cylinder 7, thereby compressing the gas in the main cylinder 7. Since the toggle plate 19 is V-shaped, one end of it is connected to the contact rod 6, and the other end is in contact with the trigger rod 8, when the moving column 10 moves, the toggle plate 19 will rotate through mechanical linkage. This rotation not only drives the movement of the trigger rod 8, but also transmits force to the common end plate 3 through the contact rod 6 and the arc-shaped spring sheet 16, thereby realizing the opening and closing of the contacts. This V-shaped design enables the toggle plate 19 to distribute force more evenly during the rotation process, thereby improving the opening and closing efficiency and stability of the contacts. This achieves the effect of improving the response speed and stability of the micro switch.

[0044] This program has the following working process:

[0045] When external force acts on the pressure rod 1, the pressure rod 1 slides on the top of the shell 2. Its movement not only directly triggers the start of the air supply structure, but also indirectly affects the rotation of the toggle plate 19 through mechanical linkage. The state of the mechanical linkage is: one end of the pressure rod 1 contacts the top of the contact rod 6 and drives the contact rod 6 to move. The contact rod 6 will drive one end of the toggle plate 19 to move, which will cause the toggle plate 19 to rotate, so that the other end contacts the trigger rod 8 and causes the trigger rod 8 to rotate. The air supply structure is located inside the shell 2 near the pressure rod 1, and its driving end is closely connected to one side of the pressure rod 1 to ensure that the slight movement of the pressure rod 1 can be accurately captured and converted into a start signal for the air supply structure. Subsequently, the air supply structure delivers gas to the push part arranged at the bottom of the normally open end plate 4 through the air pipe 9. This airflow exerts an additional upward force on the normally open end plate 4, thereby realizing the upward movement of the normally open end plate 4. This movement, combined with the movement of the trigger rod 8 driven by the rotation of the toggle plate 19, enables a two-way approaching movement between the double-position contact structure and the normally open end plate 4, thereby greatly shortening the time required for the contacts to open and close, and significantly improving the trigger response speed.

[0046] At the same time, the design of the double-position contact structure allows the two contacts to be switched and used alternately during the contact opening and closing process. When one contact is in working state, the other contact is in standby state. This design not only reduces the frequency of use of a single contact and extends the service life of the contact, but also ensures that when any contact is damaged, the other contact can immediately take over the work, play an emergency purpose, and ensure the continuous and stable operation of the micro switch.

[0047] According to the above working process, we can know that:

[0048] This technical solution successfully solves the technical problems of slow response speed and unstable action of traditional micro switches by introducing an innovative air supply structure. The air supply structure achieves rapid opening and closing of contacts by applying additional force to the normally open end plate 4, significantly improving the response speed of the micro switch, so that it can better adapt to occasions requiring rapid response. At the same time, the use of the air supply structure avoids the high energy consumption, complexity and electromagnetic interference problems that may be caused by the electromagnetic drive system, providing a more efficient, reliable and economical solution for the field of electronic equipment and control systems.

[0049] The design of the double-position switchable contact structure not only reduces the frequency of use of a single contact by rotating the two contacts, prolonging the service life of the contacts, but also enhances the fault tolerance of the micro switch. When any contact is damaged, the other contact can immediately take over the work, ensuring the continuous and stable operation of the micro switch and improving the reliability and stability of the entire system.

[0050] This solution improves the response speed, stability and service life of the micro switch by introducing an air supply structure and a double-position switchable contact structure.

[0051] Example 2, refer to Figure 1-11 The air supply structure includes a main air cylinder 7, a moving column 10, an air pipe 9 and an air bag 13. The main air cylinder 7 is installed inside the chamber, and one side of the chamber is connected to the inside of the shell 2. One end of the moving column 10 is slidably arranged inside the main air cylinder 7 and connected to the internal piston plate, and the other end is connected to the side wall of the pressure rod 1 through a connecting rod 12. One end of the connecting rod 12 is fixedly connected to the side wall bolt of the moving column 10, and the other end is fixedly connected to the side wall bolt of the pressure rod 1. A mounting groove 27 adapted to the air bag 13 is provided on one side of the bottom of the inner cavity of the shell 2. The air bag 13 is connected to the main air cylinder 7 through the air pipe 9. The top of the air bag 13 is connected to the bottom of the normally open end plate 4 through a linkage bracket 26. The diameter of the main air cylinder 7 is five times the diameter of the moving column 10. When the pressure rod 1 is subjected to external force, the moving column 10 slides in the main air cylinder 7, and the compressed gas is delivered to the air bag 13 through the air pipe 9. The expansion of the airbag 13 pushes the normally open end plate 4 upward through the linkage bracket 26, and cooperates with the double-position switchable contact structure on the trigger rod 8 to realize the rapid opening and closing of the contacts. The design of this air supply structure avoids the high energy consumption and complexity of electromagnetic drive, and at the same time uses the rapid response characteristics of gas to improve the response speed of the micro switch. The effect of reducing energy consumption, improving response speed and simplifying structure is achieved. Since the longitudinal space inside the shell 2 is limited, the diameter of the main air cylinder 7 is increased to make full use of the lateral space. Such a setting allows more gas to be stored inside the main air cylinder 7, and more gas can be delivered to the inside of the trachea 9, thereby ensuring the quality and speed of inflation of the airbag 13.

[0052] A rotation groove is provided on one side of the housing 2, and the side wall of the normally open end plate 4 is rotationally connected to the inner wall of the rotation groove. The linkage bracket 26 is in a Z shape, and the top of the linkage bracket 26 is connected to the bottom of the normally open end plate 4, and the bottom is connected to the top of the airbag 13. When the airbag 13 expands, the Z-shaped linkage bracket 26 converts the expansion force of the airbag 13 into a thrust on the normally open end plate 4. Due to the shape design of the linkage bracket 26, it can more effectively transmit power, reduce energy loss, and ensure the smooth movement of the normally open end plate 4. The opening and closing accuracy and stability of the contacts are improved. The effect of improving the opening and closing accuracy and stability of the contacts is achieved.

[0053] The double-position switchable contact structure includes a movable plate 22, two contacts 23, a round rod 14, a pulling rope 15 and a circular ring 24. A movable groove is provided at the end of the trigger rod 8, and sliding grooves are provided on both sides of the movable groove. The movable plate 22 is arranged inside the movable groove and both sides of the movable plate 22 cooperate with the sliding grooves through sliders. The round rod 14 is arranged on one side of the pressure rod 1 and the end thereof passes through the top of the shell 2 through a sliding sleeve, and the other end is connected with a circular plate 25. The top of the circular plate 25 is elastically connected to the inner wall of the shell 2 through a plurality of limit springs. The circular ring 24 is provided with a plurality of and all of them are movably sleeved on the outside of the pulling rope 15. The circular ring 24 close to the circular plate 25 is connected to the top of the inner cavity of the shell 2, and the remaining circular rings 24 are connected to the side wall of the trigger rod 8. One end of the pulling rope 15 is connected to the circular plate 25, and the other end is connected to the slider. One end of the movable plate 22 is elastically connected to the inner wall of the movable groove through a plurality of reset springs.

[0054] The distance between the top end of the round rod 14 and the top of the housing 2 is the same as the distance between the center points of the two contacts 23 .

[0055] When the positions of the two contacts 23 need to be adjusted, the pressure rod 1 and the round rod 14 are pressed synchronously. When the positions of the two contacts 23 do not need to be adjusted, only the pressure rod 1 needs to be pressed.

[0056] When the round rod 14 moves, the round rod 14 will drive the round plate 25 and one end of the pulling rope 15 to move synchronously. The movement of one end of the pulling rope 15 will drive the slider at the other end and the entire movable plate 22 to slide in the movable groove. During the sliding process of the movable plate 22, since the two contacts 23 are symmetrically arranged on the top of the movable plate 22, and the distance between the top end of the round rod 14 and the top of the housing 2 is the same as the distance between the center points of the two contacts 23, when the round rod 14 is pressed into place, the positions of the two contacts 23 are swapped. This switching mechanism allows the two contacts to be used alternately, reducing the frequency of use of a single contact, thereby extending the service life of the contact.

[0057] At the same time, the setting of the ring 24 plays a role of auxiliary support and guidance. Several rings 24 are movably sleeved on the outside of the pulling rope 15, among which the ring 24 close to the circular plate 25 is connected to the top of the inner cavity of the shell 2, providing a fixed starting point for the pulling rope 15; the remaining rings 24 are connected to the side wall of the trigger rod 8, and move with the rotation of the trigger rod 8, ensuring the stability and directionality of the pulling rope 15 during the movement.

[0058] When the external force is removed, the movable plate 22 and the circular plate 25 will return to their initial positions along with the reset spring, thereby ensuring accurate reset of the contacts and smooth operation of the next operation.

[0059] A middle groove 17 is provided on one side of the arc-shaped spring piece 16, and a support spring 18 is obliquely arranged inside the middle groove 17. One end of the support spring 18 is connected to the contact rod 6, and the other end is connected to the inner wall of the housing 2. One side of the top of the trigger rod 8 is elastically connected to the inner wall of the housing 2 through a tension spring 21, and the top of the moving column 10 is elastically connected to the inner wall of the chamber through a return spring 11. The support spring 18 and the tension spring 21 are used to keep the positions of the arc-shaped spring piece 16 and the trigger rod 8 stable, respectively, and the return spring 11 is used to return the moving column 10 to the initial position after the pressure rod 1 is released. The setting of these springs improves the reset accuracy and stability of the micro switch and ensures the accurate opening and closing of the contacts. The effect of improving the reset accuracy and stability of the micro switch is achieved.

[0060] Example 3, refer to Figure 1-11 , a method of using a fast-response micro switch:

[0061] S1: Startup preparation phase:

[0062] Install the micro switch in the electronic equipment or control system, and ensure that the housing 2, the pressure rod 1, the common end plate 3, the normally open end plate 4, the normally closed end plate 5, the air supply structure: including the main air cylinder 7, the moving column 10, the air pipe 9 and the air bag 13, the double-position switchable contact structure: including the movable plate 22, the contact 23, the round rod 14, the pulling rope 15 and the ring 24, and all the springs: the support spring 18, the tension spring 21, the return spring 11, are connected correctly, and check whether the air supply structure, the double-position switchable contact structure and all the springs are in the initial state and are ready for operation;

[0063] S2: External force triggering stage:

[0064] When the micro switch needs to be operated, an external force is applied to the pressure rod 1 on the top of the housing 2 to make it slide on the top of the housing 2. The sliding of the pressure rod 1 will drive the moving column 10 and the piston plate to move in the main gas cylinder 7, thereby compressing the gas. At the same time, the sliding of the pressure rod 1 will drive the contact rod 6 to move, and the movement of the contact rod 6 will drive the toggle plate 19 to rotate. The rotation of the toggle plate 19 will drive the trigger rod 8 to rotate. At the same time, the round rod 14 moves synchronously with the pressure rod 1 to prepare for contact switching.

[0065] S3: Contact opening and closing and switching stage:

[0066] The air supply structure delivers gas to the push part at the bottom of the normally open end plate 4 through the air pipe 9, so that the air bag 13 expands and pushes the normally open end plate 4 upward through the Z-shaped linkage bracket 26 to realize the rapid opening and closing of the contacts. At the same time, the movement of the round rod 14 drives the movable plate 22 to slide in the movable groove through the pulling rope 15, so that the two contacts 23 are switched and used alternately. If there is no need to control the contact switching separately, only the pressure rod 1 can be pressed;

[0067] S4: Reset and waiting stage:

[0068] When the external force is removed, under the joint action of the support spring 18, the tension spring 21 and the return spring 11, the pressure rod 1, the moving column 10, the movable plate 22 and other components will return to the initial position, and the micro switch will enter the standby state, waiting for the next operation. At this time, the two contacts 23 in the double-position switchable contact structure have rotated to the new working state, ready for the next operation.

[0069] Working process: In this complete technical solution, when external force acts on the pressure rod 1, the pressure rod 1 slides on the top of the shell 2. This action first triggers the start of the air supply structure. The air supply structure consists of a main air cylinder 7, a moving column 10, an air pipe 9 and an air bag 13, wherein one end of the moving column 10 is slidably set inside the main air cylinder 7 and connected to the internal piston plate, and the other end is connected to the side wall of the pressure rod 1 through a connecting rod 12. When the pressure rod 1 slides, it drives the moving column 10 to slide inside the main air cylinder 7, compressing the gas inside the main air cylinder 7. Since the diameter of the main air cylinder 7 is five times the diameter of the moving column 10, this design allows more gas to be stored inside the main air cylinder 7, so that more gas can be delivered to the air pipe 9 during compression, ensuring the quality and speed of inflation of the air bag 13.

[0070] The compressed gas is delivered to the airbag 13 through the air pipe 9, and the expansion of the airbag 13 transmits force to the normally open end plate 4 through the Z-shaped linkage bracket 26, causing it to move upward. The upward movement of the normally open end plate 4 is combined with the movement of the trigger rod 8 driven by the rotation of the toggle plate 19, realizing the two-way approach movement between the double-position contact structure and the normally open end plate 4, greatly shortening the time required for the contact to open and close, and significantly improving the trigger response speed.

[0071] At the same time, the double-position switchable contact structure plays a key role. A movable groove is provided at the end of the trigger rod 8, and a movable plate 22 is provided in the movable groove. The two sides of the movable plate 22 cooperate with the slide groove through sliders. When the positions of the two contacts 23 need to be adjusted, the pressure rod 1 and the round rod 14 are pressed synchronously. The movement of the round rod 14 drives the movable plate 22 to slide in the movable groove through the pulling rope 15, so as to realize the switching and rotation of the two contacts 23. This design allows the switching of two contacts during the contact opening and closing process, reduces the use frequency of a single contact, prolongs the service life of the contact, and enhances the fault tolerance of the micro switch.

[0072] During the entire working process, the design of the V-shaped toggle plate 19 enables it to distribute force more evenly during rotation, thereby improving the opening and closing efficiency and stability of the contacts.

[0073] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A quick-response micro switch, comprising a housing (2), a pressure rod (1), a common end plate (3), a normally open end plate (4) and a normally closed end plate (5), wherein the pressure rod (1) is slidably arranged on the top of the housing (2), and the end portion thereof extends into the interior of the housing (2), the common end plate (3) is arranged at the bottom of the housing (2), the normally open end plate (4) and the normally closed end plate (5) are symmetrically arranged on one side of the housing (2), and the ends of the common end plate (3), the normally open end plate (4) and the normally closed end plate (5) all extend into the interior of the housing (2), characterized in that: A toggle plate (19) rotatably connected to the inner wall of the shell (2) is provided at the center of the inner part of the shell (2); a trigger rod (8) rotatably connected to the inner wall of the shell (2) and having its end arranged between the normally open end plate (4) and the normally closed end plate (5) is provided at the top of one end of the toggle plate (19); the other end is connected to a contact rod (6); a chamber is provided inside the shell (2) and close to the pressure rod (1); an air supply structure is provided inside the chamber; a driving end of the air supply structure is connected to one side of the pressure rod (1); an output end is connected to a pushing portion arranged at the bottom of the normally open end plate (4) through an air pipe (9); a double-position switchable contact structure is movably provided at one end of the trigger rod (8); one end of the end of the common end plate (3) is connected to the bottom of the contact rod (6) through an arc-shaped spring sheet (16); and the other end is connected to the double-position switchable contact structure through an arc-shaped extending connecting piece (20); The air supply structure comprises a main air cylinder (7), a movable column (10), an air pipe (9) and an air bag (13); the main air cylinder (7) is installed inside a chamber, one side of the chamber is connected to the inside of an outer shell (2); one end of the movable column (10) is slidably arranged inside the main air cylinder (7) and connected to the internal piston plate, and the other end is connected to the side wall of the pressure rod (1) through a connecting rod (12); one side of the bottom of the inner cavity of the outer shell (2) is provided with a mounting groove (27) adapted to the air bag (13); the air bag (13) is connected to the main air cylinder (7) through the air pipe (9), and the top of the air bag (13) is connected to the bottom of the normally open end plate (4) through a linkage bracket (26); The diameter of the main gas cylinder (7) is five times the diameter of the moving column (10).

2. A fast-response micro switch according to claim 1, characterized in that: The toggle plate (19) is V-shaped, one end of which is connected to the end of the contact rod (6) and the contact rod (6) is arranged horizontally, and the other end of which is in contact with the bottom of the trigger rod (8).

3. A fast-response micro switch according to claim 2, characterized in that: A rotation groove is provided on one side of the housing (2); the side wall of the normally open end plate (4) is rotationally connected to the inner wall of the rotation groove; the linkage bracket (26) is in a Z-shape; the top of the linkage bracket (26) is connected to the bottom of the normally open end plate (4), and the bottom is connected to the top of the airbag (13).

4. A fast-response micro switch according to claim 2, characterized in that: The double-position switchable contact structure comprises a movable plate (22), two contacts (23), a round rod (14), a pulling rope (15) and a ring (24); a movable groove is provided at the end of the trigger rod (8), and sliding grooves are provided on both sides of the movable groove; the movable plate (22) is arranged inside the movable groove, and both sides of the movable plate (22) cooperate with the sliding grooves through sliders; the round rod (14) is arranged on one side of the pressure rod (1) and the end thereof passes through the top of the housing (2) through a sliding sleeve, and the other end is connected to a round plate (25); the round plate (2 The top of the pull rope (5) is elastically connected to the inner wall of the housing (2) through a plurality of limit springs, a plurality of circular rings (24) are provided and are movably sleeved on the outside of the pulling rope (15), the circular ring (24) close to the circular plate (25) is connected to the top of the inner cavity of the housing (2), and the remaining circular rings (24) are connected to the side wall of the trigger rod (8), one end of the pulling rope (15) is connected to the circular plate (25), and the other end is connected to the slider, and one end of the movable plate (22) is elastically connected to the inner wall of the movable groove through a plurality of return springs; The distance between the top end of the round rod (14) and the top of the housing (2) is the same as the distance between the center points of the two contacts (23).

5. A fast-response micro switch according to claim 4, characterized in that: A middle groove (17) is provided on one side of the arc-shaped spring piece (16), and a support spring (18) is obliquely arranged inside the middle groove (17). One end of the support spring (18) is connected to the contact rod (6), and the other end is connected to the inner wall of the housing (2). One side of the top of the trigger rod (8) is elastically connected to the inner wall of the housing (2) via a tension spring (21), and the top of the movable column (10) is elastically connected to the inner wall of the chamber via a return spring (11).

6. A fast-response micro switch as claimed in claim 5, wherein the method of using the micro switch is as follows: S1: Startup preparation phase: Install the micro switch in the electronic device or control system and ensure that the housing (2), the pressure rod (1), the common end plate (3), the normally open end plate (4), the normally closed end plate (5), the air supply structure: including the main air cylinder (7), the movable column (10), the air pipe (9) and the air bag (13), the double-position switchable contact structure: including the movable plate (22), the contact (23), the round rod (14), the pull rope (15) and the ring (24), and all the springs: the support spring (18), the tension spring (21), and the return spring (11) are connected correctly, and check whether the air supply structure, the double-position switchable contact structure and all the springs are in the initial state and are ready for operation; S2: External force triggering stage: When the micro switch needs to be operated, an external force is applied to the pressure rod (1) at the top of the housing (2) to make it slide on the top of the housing (2). The sliding of the pressure rod (1) drives the moving column (10) and the piston plate to move in the main gas cylinder (7), thereby compressing the gas. At the same time, the sliding of the pressure rod (1) drives the contact rod (6) to move. The movement of the contact rod (6) drives the toggle plate (19) to rotate. The rotation of the toggle plate (19) drives the trigger rod (8) to rotate. At the same time, the round rod (14) moves synchronously with the pressure rod (1) to prepare for contact switching. S3: Contact opening and closing and switching stage: The air supply structure delivers gas to the push portion at the bottom of the normally open end plate (4) through the air pipe (9), so that the air bag (13) expands and pushes the normally open end plate (4) to move upward through the Z-shaped linkage bracket (26), thereby realizing rapid opening and closing of the contacts. At the same time, the movement of the round rod (14) drives the movable plate (22) to slide in the movable groove through the pulling rope (15), thereby realizing the switching and rotation of the two contacts (23). If there is no need to control the switching of the contacts separately, only the pressing rod (1) can be pressed; S4: Reset and waiting stage: When the external force is removed, under the joint action of the support spring (18), the tension spring (21) and the return spring (11), the pressure rod (1), the movable column (10) and the movable plate (22) return to their initial positions, and the micro switch enters a standby state, waiting for the next operation. At this time, the two contacts (23) in the double-position switchable contact structure have rotated to a new working state, ready for the next operation.

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