Snap-action 2-circuit switch

Abstract

This invention provides a snap-action type two-circuit switch that achieves high-speed response of metal components using a snap-action mechanism and ensures synchronization of switching between the circuits of the switch when the snap-action mechanism performs the switching. [Solution] The device comprises a housing 1 having a housing section, an operating member 2 that receives a pressing operation, a first fixing member 401, a second fixing member 402, and a third fixing member 403 arranged in parallel within the housing section at a predetermined interval, a metal member 3 having a contact portion 301 that is slidably connected to the second fixing member and the third fixing member, a snap action mechanism that drives the metal member when the operating member is pressed to a predetermined position, and a base 4 provided at the bottom of the housing. The snap action mechanism comprises a first drive body 5 on which the metal member is provided, a second drive body 6 located above the first drive body, and a spring 7 located below the first drive body.

Description

Technical Field

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[0001] This invention relates to the technical field of switches, and particularly to a snap-action type 2-circuit switch.

Background Art

[0002] A microswitch is a contact mechanism that performs opening and closing operations with a predetermined stroke and a predetermined force, and is a switch covered by a housing and having an actuator arm outside thereof. Currently, most of the 2-circuit switches (a type of microswitch) in the market adopt a clip slow-action switching method for their internal structure. When switching is performed with this clip slow-action structure, the synchronization of switching between each circuit of the switch cannot be ensured. To solve these problems, the market demands the design of a 2-circuit high-speed switching switch.

Summary of the Invention

Problems to be Solved by the Invention

[0003] The object of this invention is to provide a snap-action type 2-circuit switch that can solve the problems of the above background art.

[0004] To achieve the above object, the technical means of this invention is to provide a snap-action type 2-circuit switch, which includes a housing having a receiving portion, an operating member for receiving a pressing operation, a first fixing member, a second fixing member, and a third fixing member that are arranged in parallel with a predetermined interval in the receiving portion, a metal member having a contact portion slidably connected to the second fixing member and the third fixing member, a snap-action mechanism for driving the metal member when the operating member is pressed to a predetermined position, and a base provided at the bottom of the housing. The snap-action mechanism comprises a first drive body on which the metal member is provided, wherein one end of the first drive body is provided with a first pivot point portion that forms a pivot point with the first fixed member, the middle part of the first drive body is provided with the contact portion that is slidably connected to the second fixed member, the other end of the first drive body is provided with the contact portion that is slidably connected to the third fixed member, and the other end of the first drive body is further provided with a first connecting end, and the first The first drive body comprises a second drive body located above the first drive body, the second drive body having a second connecting end at one end, a second pivot point portion in the middle of the second drive body that forms a pivot point with the second fixing member, and a pressed portion at the other end of the second drive body that is pressed by the operating member; and a spring located below the first drive body, the spring having one end connected to the second connecting end and the other end connected to the first connecting end.

[0005] Furthermore, the two first fixing members are arranged on both sides of the left end of the housing along the front-rear direction, the two second fixing members are arranged on both sides of the middle of the housing along the front-rear direction, and the two third fixing members are arranged on both sides of the right end of the housing along the front-rear direction, and the snap action mechanism is arranged between the two first fixing members, the two second fixing members and the two third fixing members.

[0006] Furthermore, each of the two first fixing members is provided with a first locking groove, each of the first pivot points is provided on both sides of the left end of the first drive body, each of the metal members is provided on both sides of the right end of the first drive body, and the first connecting end is provided in the center of the right end of the first drive body, with the two first locking grooves and the two first pivot points constituting a pivot point.

[0007] Furthermore, each of the two second fixing members is provided with a second locking groove, the second connecting end is provided at the center of the left end of the second drive body, the second pivot points are provided on both sides of the middle part of the second drive body, the pressed part is provided at the center of the right end of the second drive body, the two second locking grooves and the two second pivot points constitute a pivot point, and the operating member is provided above the pressed part.

[0008] Furthermore, movable openings are provided on both sides of the central part of the first drive body, the left ends of the two metal members are positioned inside the two movable openings, the right ends of the two metal members are positioned outside the two movable openings, and the two second fixing members each penetrate upward through the two movable openings.

[0009] Furthermore, the first drive unit has an H-shaped structure, with positioning columns extending upward from the center and left end of the middle section of the first drive unit, and the second drive unit has a cross-shaped structure, with a retraction hole provided in the center of the middle section of the second drive unit that penetrates upward through the positioning column in the center of the middle section.

[0010] Furthermore, the first drive body is a plastic member, the first pivot point is a reinforcing member with a two-fold structure, the two contact points on the metal member are slidably connected to the inside and outside of the second fixing member, respectively, and the other two contact points on the metal member are slidably connected to the inside and outside of the third fixing member, respectively.

[0011] Furthermore, the first locking groove is a V-shaped locking groove, with its V-shaped opening facing the second fixing member, the second locking groove is a V-shaped locking groove, with its V-shaped opening facing the first fixing member, and the height of the first locking groove is lower than the height of the second locking groove.

[0012] Furthermore, the first fixing member, the second fixing member, and the third fixing member are attached to the upper surface of the base, the second fixing member is provided with a first terminal and a second terminal arranged vertically, the third fixing member is provided with a common terminal, six external terminals are provided on the lower surface of the base, and the first terminal, the second terminal, and the third fixing member are electrically connected to the external terminals.

[0013] Furthermore, a sealing ring and two silencing plugs are attached to the housing, a silencing pad is attached to the base, the operating member passes through the sealing ring upward and engages with the two silencing plugs when both sides of the other end of the first drive body swing upward, and engages with the silencing pad when the center of the other end of the first drive body swings downward. [Effects of the Invention]

[0014] In summary, applying the technical solution of this invention provides the following beneficial effects. The structure of this invention is rationally designed. (1) By providing a snap-action type two-circuit switch, the invention comprises a housing having a housing section, an operating member that receives a pressing operation, a first fixed member, a second fixed member, and a third fixed member arranged in parallel with a predetermined interval within the housing section, a metal member having a contact portion slidably connected to the second fixed member and the third fixed member, a snap-action mechanism that drives the metal member when the operating member is pressed to a predetermined position, and a base provided at the bottom of the housing. When the operating member is pressed to a predetermined position, the snap-action mechanism can drive the metal member to perform the corresponding movement, thereby allowing the contact portion on the metal member to slide in correspondence with the second fixed member and the third fixed member. (2) A first drive body having a metal member provided by a snap action mechanism, wherein one end of the first drive body is provided with a first pivot point that constitutes a pivot point with a first fixed member, the middle part of the first drive body is provided with a contact portion that is slidably connected to a second fixed member, the other end of the first drive body is provided with a contact portion that is slidably connected to a third fixed member, and the other end of the first drive body is further provided with a first connecting end, and a second drive body located above the first drive body, the second drive body The first drive body has a second connecting end at one end, a second pivot point portion which constitutes a pivot point with a second fixed member in the middle of the second drive body, and a pressed portion which is pressed by an operating member at the other end of the second drive body, and a spring located below the first drive body, with one end of the spring connected to the second connecting end and the other end of the spring connected to the first connecting end. Thus, the first drive body, the second drive body and the spring of the snap action mechanism can form an integrated unit capable of generating high-speed switching and interlocking.In other words, the operating principle is as follows: When the operating member is subjected to an external force and pressed downward, first, the pressed portion of the second drive body comes into contact with the operating member, and the second drive body rotates clockwise around the second pivot point. At this time, the pressed portion of the second drive body swings downward, and the second connecting end of the second drive body swings upward, pulling the spring. The second connecting end gradually approaches the height of the first pivot point from a position below the first pivot point, and the spring is gradually pulled. When the second connecting end passes the height of the first pivot point in the upward direction, the spring is extended to its maximum length, and this position becomes the switching point to the critical state. Next, as the second connecting end swings upward and reaches a position above the first pivot point, the spring pulls the first connecting end of the first drive body. Due to the tensile force of the spring, the first drive body instantaneously rotates upward around the first pivot point and reaches a predetermined position. Then, the second drive body swings and reaches a predetermined position. At this time, as the first connecting end swings upward and approaches the second connecting end by a certain distance, the spring gradually compresses little by little, and the metal member completes its upward displacement. When the operating member loses its external force, the spring needs to return to its original position due to the elastic force generated by its extension. As a result of the spring's action, the first drive body rotates downward around the first pivot point and reaches a predetermined position, completing the downward displacement of the metal member. The second drive body rotates counterclockwise around the second pivot point, and at this time, the second connecting end of the second drive body is pulled downward by the spring and swings back to the position below the first pivot point. The pressed portion of the second drive body swings upward, and the pressed portion returns the operating member to its upward position. As can be seen from the above analysis, the snap-action type two-circuit switch of the present invention can achieve a high-speed response of the metal member using the snap-action mechanism when the operating member is pressed to a predetermined position, and furthermore, it can ensure the synchronization of switching between each circuit of the switch when the snap-action mechanism performs the switching. [Brief explanation of the drawing]

[0015] [Figure 1] This is a schematic diagram of the disassembled structure of the present invention. [Figure 2] This is a schematic diagram of the three-dimensional structure in the first assembled state of the present invention. [Figure 3]This is a schematic diagram of the three-dimensional structure in the second assembled state of the present invention. [Figure 4] This is a schematic diagram of the three-dimensional structure in the third assembled state of the present invention. [Figure 5] This is a schematic diagram of the three-dimensional structure in the fourth assembled state of the present invention. [Figure 6] This is a schematic diagram of the three-dimensional structure of the housing of the present invention. [Figure 7] This is a schematic diagram of the three-dimensional structure of the present invention. [Modes for carrying out the invention]

[0016] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings, but it is obvious that the embodiments described will not limit the scope of protection of the present invention.

[0017] In order to explain this invention more clearly, the following explanation is given. That is, when an observer is facing Figure 1, the observer's left side is to the left, the observer's right side is to the right, the observer's front is forward, the observer's rear is backward, the observer's top surface is upward, and the observer's bottom surface is downward. Here, the directions or positional relationships indicated by terms such as "front end," "rear end," "left side," "right side," "middle," "upper," and "downward" in the specification are directions or positional relationships based on the drawings and do not indicate or suggest that the shown structure or part has a specific direction or is constructed in a specific direction, but are simply for the purpose of clearly explaining this invention. Also, please note that terms such as "first," "second," "third," and "fourth" do not indicate or suggest relative importance or number, but are simply for the purpose of clarifying or simplifying the explanation.

[0018] Referring to Figures 1 to 7, the snap-action type two-circuit switch provided in this embodiment comprises a housing 1 having a housing portion 101, an operating member 2 that receives a pressing operation, a first fixing member 401, a second fixing member 402, and a third fixing member 403 arranged in parallel with a predetermined interval within the housing portion 101, a metal member 3 having a contact portion 301 that is slidably connected to the second fixing member 402 and the third fixing member 403, a snap-action mechanism that drives the metal member 3 when the operating member 2 is pressed to a predetermined position, and a base 4 provided at the bottom of the housing 1.

[0019] The snap action mechanism comprises a first drive body 5 to which a metal member 3 is provided, one end of the first drive body 5 is provided with a first fixing member 401 and a first pivot portion 501 that constitutes a pivot point, the middle part of the first drive body 5 is provided with a contact portion 301 that is slidably connected to a second fixing member 402, the other end of the first drive body 5 is provided with a contact portion 301 that is slidably connected to a third fixing member 403, and the other end of the first drive body 5 is further provided with a first connecting end 502, and the first drive The first drive body 5 has a second drive body 6 located above the body 5, with a second connecting end 601 provided at one end of the second drive body 6, a second pivot point portion 602 that forms a pivot point with a second fixing member 402 provided in the middle of the second drive body 6, and a pressed portion 603 that is pressed by the operating member 2 at the other end of the second drive body 6, and a spring 7 located below the first drive body 5, with one end of the spring 7 connected to the second connecting end 601 and the other end of the spring 7 connected to the first connecting end 502. Operation: (1) By providing a snap-action type two-circuit switch, the device comprises a housing having a housing section, an operating member that receives a pressing operation, a first fixed member, a second fixed member, and a third fixed member arranged in parallel with a predetermined interval within the housing section, a metal member having a contact portion slidably connected to the second fixed member and the third fixed member, a snap-action mechanism that drives the metal member when the operating member is pressed to a predetermined position, and a base provided at the bottom of the housing. When the operating member is pressed to a predetermined position, the snap-action mechanism drives the metal member to perform the corresponding movement, allowing the contact portion of the metal member to slide in correspondence with the second fixed member and the third fixed member.(2) A first drive body having a metal member provided by a snap action mechanism, wherein one end of the first drive body is provided with a first pivot point that forms a pivot point with a first fixed member, the middle part of the first drive body is provided with a contact portion that is slidably connected to a second fixed member, the other end of the first drive body is provided with a contact portion that is slidably connected to a third fixed member, and the other end of the first drive body is further provided with a first connecting end, and a second drive body located above the first drive body, wherein the second drive body The snap action mechanism comprises a second drive body having a second connecting end at one end, a second pivot point portion in the middle of the second drive body which constitutes a pivot point with a second fixed member, and a pressed portion at the other end of the second drive body which is pressed by an operating member, and a spring located below the first drive body, with one end of the spring connected to the second connecting end and the other end of the spring connected to the first connecting end. Thus, the first drive body, the second drive body and the spring of the snap action mechanism can form an integrated unit capable of generating high-speed switching and interlocking. In other words, the operating principle is as follows: When the operating member is subjected to an external force and pressed downward, first, the pressed portion of the second drive body comes into contact with the operating member, and the second drive body rotates clockwise around the second pivot point. At this time, the pressed portion of the second drive body swings downward, and the second connecting end of the second drive body swings upward, pulling the spring. The second connecting end gradually approaches the height of the first pivot point from a position below the first pivot point, and the spring is gradually pulled. When the second connecting end passes the height of the first pivot point in the upward direction, the spring is extended to its maximum length, and this position becomes the switching point to the critical state. Next, as the second connecting end swings upward and reaches a position above the first pivot point, the spring pulls the first connecting end of the first drive body. Due to the tensile force of the spring, the first drive body instantaneously rotates upward around the first pivot point and reaches a predetermined position. Then, the second drive body swings and reaches a predetermined position. At this time, as the first connecting end swings upward and approaches the second connecting end by a certain distance, the spring gradually compresses little by little, and the metal member completes its upward displacement.When the operating member loses external force, since the spring needs to generate elastic force and return by elongation, due to the action of the spring, the first driving body rotates downward about the first fulcrum to reach a predetermined position, the metal member completes downward displacement, and the second driving body rotates counterclockwise about the second fulcrum. At this time, the second connecting end of the second driving body is pulled by the spring and swings downward to return to a position below the first fulcrum, the pressed part of the second driving body swings upward, and the pressed part returns the operating member upward. As can be seen from the above analysis, when the operating member of the snap-action type 2-circuit switch of the present invention is pressed to a predetermined position, the high-speed response of the metal member can be realized by using the snap-action mechanism. Furthermore, when the snap-action mechanism performs switching, the synchronism of switching between each circuit of the switch can be ensured.

[0020] Specifically, the two first fixing members 401 are arranged on both sides of the left end of the accommodating part 101 along the front-rear direction, the two second fixing members 402 are arranged on both sides of the middle part of the accommodating part 101 along the front-rear direction, the two third fixing members 403 are arranged on both sides of the right end of the accommodating part 101 along the front-rear direction, and the snap-action mechanism is arranged between the two first fixing members 401, the two second fixing members 402 and the two third fixing members 403. Function: The force received by the first driving body 5 from the second driving body 6 and the spring 7 is balanced, and the interlocking becomes smooth.

[0021] Specifically, the two first fixing members 401 are each provided with a first locking groove 404, the two sides of the left end of the first driving body 5 are each provided with a first fulcrum portion 501, the two sides of the right end of the first driving body 5 are each provided with a metal member 3, the center of the right end of the first driving body 5 is provided with a first connecting end 502, and the two first locking grooves 404 and the two first fulcrum portions 501 constitute a rotation fulcrum. Function: The first driving body 5 swings up and down in precise cooperation with the first fixing member 401 and the spring 7. The two metal members 3 can form two circuits. The two circuits each form an independent structure, ensuring the synchronous switching of the two-circuit structure. Furthermore, a two-circuit with sealing performance and an instantaneous switching function can be ensured. Preferably, the first connecting end 502 is a hole-shaped spring hook.

[0022] Specifically, the two second fixing members 402 are each provided with a second locking groove 405, the center of the left end of the second driving body 6 is provided with a second connecting end 601, the two sides of the middle part of the second driving body 6 are each provided with a second fulcrum portion 602, the center of the right end of the second driving body 6 is provided with a pressed portion 603, the two second locking grooves 405 and the two second fulcrum portions 602 constitute a rotation fulcrum, and the operating member 2 is provided above the pressed portion 603. Function: The second driving body 6 realizes vertical swinging in precise cooperation with the second fixing member 402, the spring 7, and the operating member 2. Preferably, the second connecting end 601 is a hole-shaped spring hook.

[0023] Specifically, movable openings 503 are provided on both sides of the middle part of the first driving body 5. The left ends of the two metal members 3 are respectively arranged inside the two movable openings 503, the right ends of the two metal members 3 are respectively arranged outside the two movable openings 503, and the two second fixing members 402 each penetrate through the two movable openings 503 upward. Function: In the process of the first driving body 5 swinging up and down, the second fixing member 402 can form a stable sliding engagement with the metal member 3 inside the movable opening 503. <舍

[0024] Specifically, the first drive unit 5 has an H-shaped structure, with positioning columns 504 extending upward from the center and left end of the first drive unit 5, and the second drive unit 6 has a cross-shaped structure, with a retraction hole 604 in the center of the second drive unit 6 that penetrates upward through the positioning column 504 in the center of the second drive unit 6. Function: By providing three positioning columns, the assembly of the device by a robot arm becomes easier. Preferably, the second drive unit 6 is a downwardly curved support rod, and the first drive unit 5 is an H-shaped clip operating piece.

[0025] Specifically, the first drive body 5 is a plastic member, the first pivot point 501 is a reinforcing member with a two-fold structure, the two contact points 301 on the metal member 3 are slidably connected to the inside and outside of the second fixing member 402, respectively, and the other two contact points 301 on the metal member 3 are slidably connected to the inside and outside of the third fixing member 403, respectively. Function: A plastic member is used as a plastic coating structure to reinforce the clip structure, and the two-fold structure increases the strength of the switching point. Preferably, the contact points 301 on the metal member 3 are elastic, and the two opposing contact points 301 form a slide clip, improving the clipping force and achieving stable sliding.

[0026] Specifically, the first locking groove 404 is a V-shaped locking groove, with its V-shaped opening facing the second fixing member 402; the second locking groove 405 is a V-shaped locking groove, with its V-shaped opening facing the first fixing member 401; and the height of the first locking groove 404 is lower than the height of the second locking groove 405. Function: The first locking groove 404 and the second locking groove 405 can form a rotational engagement with the first pivot point 501 and the second pivot point 602, and can also form a positional regulating engagement.

[0027] Specifically, the first fixing member 401, the second fixing member 402, and the third fixing member 403 are attached to the upper surface of the base 4. The second fixing member 402 is provided with a first terminal 406 and a second terminal 407 arranged vertically, the third fixing member 403 is provided with a common terminal, and six external terminals 408 are provided on the lower surface of the base 4. The first terminal 406, the second terminal 407, and the third fixing member 403 are electrically connected to the external terminals 408. Function: The two first terminals 406 can be electrically connected to the two external terminals 408 at the left end, the two second terminals 407 can be electrically connected to the two external terminals 408 in the middle, and the two common terminals can be electrically connected to the two external terminals 408 at the right end. This allows one of the first terminals 406 and the second terminals 407 to be configured as a normally closed contact and the other as a normally open contact, and these circuits can be switched synchronously. Preferably, the housing 1 and the base 4 are detachably mounted.

[0028] Specifically, a sealing ring 8 and two silent plugs 9 are attached to the housing 1, and a silent pad 10 is attached to the base 4. The operating member 2 passes through the sealing ring 8 from above and engages with the two silent plugs 9 when both sides of the other end of the first drive unit 5 swing upward, and engages with the silent pad 10 when the center of the other end of the first drive unit 5 swings downward. Operation: By attaching the silent plugs 9 and silent pad 10, when the first drive unit 5 comes into contact with a silent plug or silent pad 10, the first drive unit 5 stops and the switching is completed. This reduces operating noise and provides vertical position control, improving the user experience. If the structure is equipped with a silent mechanism (i.e., silent plugs 9 and silent pads 10), the switch becomes a silent switch, effectively reducing switch noise. When the silent structure is released, the structure collides with the housing and base, producing a clicking sound, and the switch becomes a sound switch, thus allowing switching between silent and sound switches. By engaging the sealing ring 8 with the operating member 2, the waterproof function can be improved. Preferably, the two silent plugs 9 are mounted in two through holes in the housing, the operating member 2 is an L-shaped push button, and the housing 1 can be made of rubber.

[0029] The above description represents a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and that these improvements and modifications are also covered within the scope of the present invention. [Explanation of Symbols]

[0030] 1 Housing, 2 Operating members, 3 Metal components, 4 bases, 5. First drive unit, 6. Second drive unit, 7 springs, 8 sealing rings, 9 Silent plugs, 10 silent pads, 101 containment section, 301 Contact part, 401 First fixing member, 402 Second fixing member, 403 Third fixing member, 404 First locking groove, 405 Second locking groove, 406 First terminal, 407 Second terminal, 408 External terminals, 501 First support section, 502 First coupling end, 503 Movable aperture, 504 Positioning column, 601 Second coupling end, 602 Second support point, 603 Pressed part, 604 Evacuation hole

Claims

1. The device comprises a housing (1) having a housing portion (101), an operating member (2) that receives a pressing operation, a first fixing member (401), a second fixing member (402), and a third fixing member (403) arranged in parallel within the housing portion (101) at predetermined intervals, a metal member (3) having a contact portion (301) slidably connected to the second fixing member (402) and the third fixing member (403), a snap action mechanism that drives the metal member (3) when the operating member (2) is pressed to a predetermined position, and a base (4) provided at the bottom of the housing (1). The snap-action mechanism comprises a first drive body (5) on which the metal member (3) is provided, wherein one end of the first drive body (5) is provided with a first pivot point portion (501) that forms a pivot point with the first fixed member (401), the middle part of the first drive body (5) is provided with the contact portion (301) that is slidably connected to the second fixed member (402), the other end of the first drive body (5) is provided with the contact portion (301) that is slidably connected to the third fixed member (403), and the other end of the first drive body (5) is further provided with a first connecting end (502), A second drive body (6) is located above the first drive body (5), the second drive body (6) having a second connecting end (601) at one end, a second pivot point (602) in the middle of the second drive body (6) which forms a pivot point with the second fixing member (402), and a pressed portion (603) that is pressed by the operating member (2) at the other end of the second drive body, A spring (7) located below the first drive unit (5), wherein one end of the spring (7) is connected to the second connecting end (601) and the other end of the spring (7) is connected to the first connecting end (502), A snap-action type two-circuit switch characterized by having the following features.

2. The snap-action type two-circuit switch according to claim 1, characterized in that the two first fixing members (401) are arranged on both sides of the left end of the housing (101) along the front-rear direction, the two second fixing members (402) are arranged on both sides of the middle part of the housing (101) along the front-rear direction, the two third fixing members (403) are arranged on both sides of the right end of the housing (101) along the front-rear direction, and the snap-action mechanism is arranged between the two first fixing members (401), the two second fixing members (402), and the two third fixing members (403).

3. The snap-action type two-circuit switch according to claim 2, characterized in that each of the two first fixing members (401) is provided with a first locking groove (404), each of the first pivot points (501) is provided on both sides of the left end of the first drive body (5), each of the metal members (3) is provided on both sides of the right end of the first drive body (5), and the first connecting end (502) is provided in the center of the right end of the first drive body (5), and the two first locking grooves (404) and the two first pivot points (501) constitute a pivot point.

4. The snap-action type two-circuit switch according to claim 3, characterized in that each of the two second fixing members (402) is provided with a second locking groove (405), the second connecting end (601) is provided at the center of the left end of the second drive body (6), the second pivot points (602) are provided on both sides of the middle part of the second drive body (6), the pressed portion (603) is provided at the center of the right end of the second drive body (6), the two second locking grooves (405) and the two second pivot points (602) constitute a pivot point, and the operating member (2) is provided above the pressed portion (603).

5. The snap-action type two-circuit switch according to claim 4, characterized in that movable openings (503) are provided on both sides of the middle portion of the first drive body (5), the left ends of the two metal members (3) are each positioned inside the two movable openings (503), the right ends of the two metal members (3) are each positioned outside the two movable openings (503), and the two second fixing members (402) each penetrate upward through the two movable openings (503).

6. The snap-action type two-circuit switch according to claim 5, characterized in that the first drive body (5) has an H-shaped structure, and positioning columns (504) extending upward are provided on both sides of the center and left end of the middle part of the first drive body (5), and the second drive body (6) has a cross-shaped structure, and a retraction hole (604) is provided in the center of the middle part of the second drive body (6) that penetrates upward to the positioning column (504) in the center of the middle part.

7. A snap-action type two-circuit switch according to any one of claims 1 to 6, characterized in that the first drive body (5) is a plastic member, the first pivot point (501) is a reinforcing member with a two-fold structure, the two contact portions (301) of the metal member (3) are slidably connected to the inside and outside of the second fixing member (402), respectively, and the other two contact portions (301) of the metal member (3) are slidably connected to the inside and outside of the third fixing member (403), respectively.

8. A snap-action type two-circuit switch according to any one of claims 4 to 6, characterized in that the first locking groove (404) is a V-shaped locking groove, the V-shaped opening of the first locking groove (404) faces the second fixing member (402), the second locking groove (405) is a V-shaped locking groove, the V-shaped opening of the second locking groove (405) faces the first fixing member (401), and the height of the first locking groove (404) is lower than the height of the second locking groove (405).

9. A snap-action type two-circuit switch according to any one of claims 1 to 6, characterized in that the first fixing member (401), the second fixing member (402), and the third fixing member (403) are attached to the upper surface of the base (4), the second fixing member (402) is provided with a first terminal (406) and a second terminal (407) arranged vertically, the third fixing member (403) is provided with a common terminal, six external terminals (408) are provided on the lower surface of the base (4), and the first terminal (406), the second terminal (407), and the third fixing member (403) are electrically connected to the external terminals (408).

10. The snap-action type two-circuit switch according to claim 9, characterized in that a sealing ring (8) and two silent plugs (9) are attached to the housing (1), a silent pad (10) is attached to the base (4), the operating member (2) passes through the sealing ring (8) upward, and engages with the two silent plugs (9) when both sides of the other end of the first drive body (5) swing upward, and engages with the silent pad (10) when the center of the other end of the first drive body (5) swings downward.

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