Controllable reset elastic sheet type microswitch

Abstract

The utility model provides a controllable reset elastic sheet type microswitch, which comprises a switch shell, a main mounting bin and an auxiliary mounting bin are sequentially arranged in the switch shell from top to bottom, and a communication groove is arranged between the main mounting bin and the auxiliary mounting bin. A through groove penetrating through the lower end face of the switch shell is formed in the bottom of the auxiliary mounting bin, a main terminal is arranged in the through groove and penetrates through the lower portion of the switch shell, clamping grooves are symmetrically formed in the upper portion and the lower portion of the inner wall of the auxiliary mounting bin, and auxiliary terminals are arranged in the clamping grooves; the auxiliary terminal passes through the front of the switch shell; when the microswitch is used, the button can be pressed for a long time to control the microswitch, and the practicability of the microswitch is greatly improved.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of switches, and specifically relates to a controllable reset elastic sheet type micro switch. Background Technique

[0002] A micro switch is a contact mechanism with a small contact interval and a quick-acting mechanism, which performs switch actions with a specified stroke and a specified force, is covered with a housing, and has a drive rod on the outside. Because the contact spacing of its switch is relatively small, it is called a micro switch, also known as a sensitive switch. The micro switch has a small stroke and a small operating force, and a lever can be assembled to adjust the operating force and stroke. When a force is applied to the actuating reed, when the actuating reed displaces to the critical point, an instantaneous action occurs, causing the moving contact at the end of the actuating reed to quickly connect or disconnect from the fixed contact. When the force on the transmission element is removed, the actuating reed generates a reverse force. When the reverse stroke of the transmission element reaches the action critical point of the reed, the reverse action is instantaneously completed;

[0003] For example, the utility model patent with the application number: CN203950713U discloses a micro switch, aiming to provide a micro switch with a simple and reasonable structure, a long service life, and better and more durable connection with wires. The technical solution is as follows: a micro switch includes a housing, a triggering mechanism, and a button partially placed in the housing. The triggering mechanism is arranged in the housing and includes a first terminal, a second terminal, a third terminal, and a reed mechanism. The third terminal includes a first longitudinal part, a first transverse part, a second longitudinal part, and a second transverse part. A first static contact is arranged on one side of the first terminal, and a second static contact opposite to the position of the first static contact is arranged on one side of the second terminal. A moving contact capable of swinging between the first static contact and the second static contact is arranged on the reed mechanism. The housing includes an upper cover body and a lower cover body. The two sides of the first longitudinal part are wider than the first transverse part and the second longitudinal part, and through holes are arranged on the first terminal, the second terminal, and the second transverse part of the third terminal.

[0004] The inventor believes that the existing micro switches including the above devices cannot press the button of the micro switch for a long time to control it during use, and there are certain limitations in use. Content of the Utility Model

[0005] The utility model mainly provides a controllable reset elastic sheet type micro switch to solve the technical problems proposed in the above background technique.

[0006] The technical solution adopted by the utility model to solve the above technical problems is as follows:

[0007] A controllable reset leaf spring type microswitch, comprising a switch housing. Inside the switch housing, a main installation chamber and a secondary installation chamber are sequentially arranged from top to bottom. A communication groove is arranged between the main installation chamber and the secondary installation chamber. A through groove penetrating the lower end face of the switch housing is arranged at the bottom of the secondary installation chamber. A main terminal is arranged in the through groove. The main terminal passes below the switch housing. Clamping grooves are symmetrically arranged at the upper and lower positions on the inner wall of the secondary installation chamber. A secondary terminal is arranged in the clamping groove. The secondary terminal passes in front of the switch housing.

[0008] Preferably, a button is arranged in the communication groove, a swing shaft is arranged in the secondary installation chamber, the swing shaft is fixedly connected to the main terminal, and the button can push the swing shaft.

[0009] Preferably, a pushing component is arranged in the secondary installation chamber.

[0010] Preferably, the pushing component includes a spring. The spring is fixed at the inner bottom of the secondary installation chamber. The other end of the spring is provided with a pushing piece, and the pushing piece can push the swing shaft.

[0011] Preferably, main static contacts are arranged at the upper and lower ends of the swing shaft. Secondary static contacts are arranged at one end of the symmetrically arranged secondary terminals close to the swing shaft.

[0012] Preferably, a metal leaf spring is arranged at the bottom of the main installation chamber. A wheel seat is arranged on the metal leaf spring, and a roller is arranged in the wheel seat.

[0013] Preferably, a limiting sliding groove is arranged at the top of the switch housing. A limiting sliding rod is arranged in the limiting sliding groove. A push button is arranged at the top of the limiting sliding rod.

[0014] Preferably, the other end of the limiting sliding rod is provided with a push block, and the rear end face of the push block is arranged as an inclined surface.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] 1. By arranging parts and structures such as a metal leaf spring, a wheel seat, and a roller in the main installation chamber of the switch housing, the button can be pressed downwards.

[0017] 2. By arranging parts and structures such as a limiting sliding rod, a push button, and a push block in the limiting sliding groove of the switch housing, the roller (i.e., the metal leaf spring is pressed) can be pressed down for a long time to achieve the function of controlling the button. By controlling the button, the swing shaft can be controlled to contact the secondary static contact of the upper secondary terminal or the secondary static contact of the lower secondary terminal, greatly improving the practicability of the microswitch.

[0018] The present utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments. Description of the Drawings

[0019] Figure 1 It is a schematic diagram of the overall structure of Embodiment 1 of the present utility model;

[0020] Figure 2 It is a cross-sectional view of the interior of the whole of Embodiment 1 of the present utility model;

[0021] Figure 3 It is an enlarged view of part A of Embodiment 1 of the present utility model;

[0022] Figure 4 It is an enlarged view of part B of Embodiment 1 of the present utility model;

[0023] Figure 5 It is an enlarged view of part C of Embodiment 1 of the present utility model;

[0024] Figure 6 It is an enlarged view of part D of Embodiment 1 of the present utility model.

[0025] In the figure: 1. Switch housing; 11. Main installation bin; 111. Metal elastic sheet; 112. Wheel seat; 113. Roller; 12. Sub-installation bin; 121. Clamping groove; 122. Sub-terminal; 1221. Sub-static contact; 123. Swing shaft; 1231. Main static contact; 13. Connecting groove; 131. Button; 14. Through groove; 141. Main terminal; 15. Limit sliding groove; 151. Limit sliding rod; 152. Push button; 153. Push block; 2. Pushing component; 21. Spring; 22. Pushing piece. Specific Embodiments

[0026] To facilitate the understanding of the present utility model, the present utility model will be described more comprehensively below with reference to the relevant accompanying drawings. Several embodiments of the present utility model are given in the drawings, but the present utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, providing these embodiments is to make the disclosure of the present utility model more thorough and comprehensive.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the description of the present utility model in this text are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0028] Embodiment 1:

[0029] Please refer with emphasis to Figures 1 - 6, A controllable reset leaf spring type microswitch, including a switch housing 1. Inside the switch housing 1, a main installation chamber 11 and a secondary installation chamber 12 are arranged in sequence from top to bottom. The main installation chamber 11 can install component structures such as a metal leaf spring 111, a wheel seat 112, and a roller 113. The secondary installation chamber 12 can install component structures such as a swing shaft 123, a main terminal 141, a secondary terminal 122, and a button 131. A communication groove 13 is arranged between the main installation chamber 11 and the secondary installation chamber 12. A through groove 14 penetrating the lower end face of the switch housing 1 is arranged at the bottom of the secondary installation chamber 12. A main terminal 141 is arranged in the through groove 14, and the main terminal 141 can be connected to the positive pole of the power supply. The main terminal 141 passes through the lower part of the switch housing 1. Clamping grooves 121 are symmetrically arranged at the upper and lower positions on the inner wall of the secondary installation chamber 12. A secondary terminal 122 is arranged in the clamping groove 121, and the secondary terminal 122 can be connected to the negative pole of the power supply. The secondary terminal 122 passes through the front of the switch housing 1.

[0030] Please refer specifically to Figure 2 , A button 131 is arranged in the communication groove 13. A swing shaft 123 is arranged in the secondary installation chamber 12. The swing shaft 123 is fixedly connected to the main terminal 141. The button 131 can push the swing shaft 123. The button 131 can press down the swing shaft 123. After the swing shaft 123 is connected to the main terminal 141, it can be powered on.

[0031] Please refer specifically to Figure 5 , A pushing component 2 is arranged in the secondary installation chamber 12, and the pushing component 2 can push up the swing shaft 123.

[0032] The pushing component 2 includes a spring 21. The spring 21 is fixed at the inner bottom of the secondary installation chamber 12. A push block 153 is arranged at the other end of the spring 21. The push block 153 can push the swing shaft 123. The push block 153 at the upper end of the spring 21 can push up the swing shaft 123.

[0033] Please refer specifically to Figure 6 , Main static contacts 1231 are arranged at the upper and lower ends of the swing shaft 123. Secondary static contacts 1221 are arranged at one end of the symmetrically arranged secondary terminals 122 close to the swing shaft 123. After the main static contacts 1231 come into contact with the secondary static contacts 1221, it can be powered on.

[0034] A metal leaf spring 111 is arranged at the bottom of the main installation chamber 11. A wheel seat 112 is arranged on the metal leaf spring 111. A roller 113 is arranged in the wheel seat 112. This design can press down the button 131.

[0035] Please refer specifically to Figure 4, a limiting chute 15 is provided at the top of the switch housing 1, a limiting slide bar 151 is provided in the limiting chute 15, and a push button 152 is provided at the top of the limiting slide bar 151. This design can conveniently push the push block 153.

[0036] The other end of the limiting slide bar 151 is provided with a push block 153, and the rear end face of the push block 153 is arranged as an inclined surface. The push block 153 can push the roller 113, and after being pushed, the metal elastic sheet 111 can be pressed downward.

[0037] The specific operation method of the present utility model is as follows: Connect the main terminal 141 and the secondary terminal 122 to the power supply line respectively. When it is necessary to contact the secondary static contact 1221 of the secondary terminal 122 located below, place the finger on the upper end of the push button 152 and then push backward. The limiting slide bar 151 and the push block 153 are pushed backward synchronously. With the pushing of the push block 153, the push block 153 will contact the roller 113. When the inclined surface of the push block 153 contacts the roller 113, the roller 113 and the wheel frame will be pressed downward, and synchronously the metal elastic sheet 111 will be pressed downward. With the downward pressing of the metal elastic sheet 111, the button 131 will move downward. The downward moving button 131 will squeeze the swing rod, causing the swing rod to move downward (at the same time, the pushing member 22 will also squeeze the spring 21 downward). With the movement of the swing rod, the main static contact 1231 will contact the secondary static contact 1221, and after contact, power can be supplied for use;

[0038] When it is necessary to contact the secondary static contact 1221 of the secondary terminal 122 located above, move the push button 152 forward to move the limiting slide bar 151 and the push block 153 away from the upper end of the roller 113. After moving away, the spring 21 is no longer squeezed, and the pushing member 22 pushes the swing shaft 123 upward, so that the main static contact 1231 of the swing shaft 123 contacts the secondary static contact 1221 of the secondary terminal 122 located above, and power can be supplied for use.

[0039] The above has made an exemplary description of the present utility model in conjunction with the accompanying drawings. Obviously, the specific implementation of the present utility model is not limited by the above methods. As long as such non-substantial improvements are made by adopting the method concept and technical solution of the present utility model, or the concept and technical solution of the present utility model are directly applied to other occasions without improvement, they are all within the protection scope of the present utility model.

Claims

1. A controllable reset spring-type micro switch, comprising a switch housing (1), characterized in that: The switch housing (1) is provided with a main mounting chamber (11) and a secondary mounting chamber (12) in order from top to bottom; a connecting groove (13) is provided between the main mounting chamber (11) and the secondary mounting chamber (12); a through groove (14) penetrating the lower end surface of the switch housing (1) is provided at the bottom of the secondary mounting chamber (12); a main terminal (141) is provided in the through groove (14); the main terminal (141) passes through the bottom of the switch housing (1); a clamping groove (121) is symmetrically provided on the inner wall of the secondary mounting chamber (12) at upper and lower positions; a secondary terminal (122) is provided in the clamping groove (121); the secondary terminal (122) passes through the front of the switch housing (1).

2. A controllable reset spring-type micro switch according to claim 1, characterized in that: A button (131) is provided in the communication groove (13), a swing shaft (123) is provided in the auxiliary mounting chamber (12), the swing shaft (123) is fixedly connected to the main terminal (141), and the button (131) can push the swing shaft (123).

3. A controllable reset spring-type micro switch according to claim 2, characterized in that: A pushing component (2) is arranged in the auxiliary installation bin (12).

4. A controllable reset spring-type micro switch according to claim 3, characterized in that: The pushing component (2) comprises a spring (21), wherein the spring (21) is fixed to the inner bottom of the auxiliary mounting bin (12), and a pushing member (22) is provided at the other end of the spring (21), wherein the pushing member (22) can push the swing shaft (123).

5. A controllable reset spring-type micro switch according to claim 4, characterized in that: Main static contacts (1231) are provided at the upper and lower ends of the swing shaft (123), and auxiliary static contacts (1221) are provided at one end of the symmetrically arranged auxiliary terminals (122) close to the swing shaft (123).

6. The controllable reset spring-type micro switch according to claim 1, characterized in that: A metal spring (111) is provided at the bottom of the main installation chamber (11), a wheel seat (112) is provided on the metal spring (111), and a roller (113) is provided inside the wheel seat (112).

7. The controllable reset spring-type micro switch according to claim 4, characterized in that: A limit slide groove (15) is arranged on the top of the switch housing (1), a limit slide rod (151) is arranged in the limit slide groove (15), and a push button (152) is arranged on the top of the limit slide rod (151).

8. The controllable reset spring-type micro switch according to claim 7, characterized in that: A push block (153) is provided at the other end of the position-limiting sliding rod (151), and a rear end surface of the push block (153) is arranged as an inclined surface.

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