A signal switch with anti-locking and self-locking structure

Abstract

The present invention discloses a signal switch with an anti-locking and self-locking structure, comprising: a main body is provided with a accommodating cavity; a movable frame reciprocates along a first direction; the movable frame comprises a connecting rod and an actuator, one end of the connecting rod is connected to the actuator, the other end of the connecting rod passes through the main body and extends to the outside, the actuator is provided with a first matching portion and a second matching portion; the first reset member applies a force to the movable frame; the bolt reciprocates along the second direction; the bolt lock comprises a locking block and a bolt rod, the locking block is connected to one end of the bolt rod, the other end of the bolt rod passes through the main body and extends to the outside, the locking block is provided with a first limiting portion and a second limiting portion, the first limiting portion and the second limiting portion are located in different directions; the second reset member applies a force to the bolt lock; this structure forms a synchronous limiting effect through multiple different directions, ensures the limiting in the anti-locking and self-locking process, and improves the limiting strength and limiting effect.

Description

Technical Field

[0001] The present invention relates to the field of electrical technology, and in particular to a signal switch with an anti-locking and self-locking structure. Background Art

[0002] For example, the Chinese invention patent, publication number "CN111161972A", and patent name "A push button switch", discloses an anti-self-locking structure. In this patent application, different functions such as anti-locking and self-locking are disclosed. However, the problem with this structure is that the locking member and the lock tongue only form a locking effect in one direction. This structural setting leads to low locking strength and the risk of the lock tongue breaking. Summary of the Invention

[0003] Therefore, the technical problem to be solved by the present invention is how to ensure the locking strength in different functions. To this end, a signal switch with anti-locking and self-locking structures comprises:

[0004] A body, wherein the body is provided with a receiving cavity;

[0005] A movable frame is accommodated in the accommodating cavity, the movable frame reciprocates along a first direction, and the movable frame drives the dynamic contact assembly; the movable frame includes a connecting rod and an actuator, one end of the connecting rod is connected to the actuator, and the other end of the connecting rod extends through the body to the outside, and the actuator is provided with a first mating portion and a second mating portion;

[0006] a first restoring member, the first restoring member being accommodated in the accommodating cavity, cooperating with the movable frame, and applying a force to the movable frame;

[0007] a latch, the latch being received in the accommodating cavity and reciprocating along the second direction; the latch comprising a locking block and a bolt rod, the locking block being connected to one end of the bolt rod, the other end of the bolt rod extending through the body to the outside, the locking block being provided with a first limiting portion and a second limiting portion, the first limiting portion and the second limiting portion being located in different directions;

[0008] a second restoring member, the second restoring member being accommodated in the accommodating cavity, the second restoring member cooperating with the latch, and applying a force to the latch;

[0009] In the first state, the first limiting portion cooperates with the first matching portion, the second limiting portion cooperates with the second matching portion, the latch restricts the movable frame from moving in the first direction, and the switch is in the disconnected position; the cooperation between the first limiting portion and the first matching portion, and the second limiting portion and the second matching portion is released, the movable frame moves in the first direction, the switch is in the connected position, the first limiting portion cooperates with the first matching portion, the second limiting portion cooperates with the second matching portion, and the latch restricts the movable frame from moving in the first direction, forming a second state.

[0010] The first limiting portion and the second limiting portion are vertically arranged, and the first limiting portion is connected to the second limiting portion.

[0011] The first matching portion is provided with a give way groove, a second clamping groove, and a hook, the side wall of the give way groove is provided with a first clamping groove, and the hook is located on one side of the second clamping groove; the second matching portion is provided with a support block; the first limiting portion is provided with a baffle and a first protrusion, the first protrusion is connected to the baffle, and the baffle is provided with a limiting rib; the second limiting portion is provided with a slide groove and a second protrusion, and the second protrusion is located on one side of the slide groove; in the first state, the first protrusion is against the first clamping groove, and the support block is against the second protrusion; when the latch is pressed, the baffle is located in the give way groove, and the baffle slides relative to the give way groove, the support block is located on the movement trajectory of the slide groove, and the support block slides relative to the slide groove; in the second state, the limiting rib is against the second clamping groove, and the support block is against the bottom surface of the second limiting portion.

[0012] The top surface of the clearance groove on the side close to the outer side wall of the main body exceeds the top surface of the hook.

[0013] The limiting rib extends to the first protrusion.

[0014] The limiting rib is provided with a first inclined surface, and the hook is provided with a second inclined surface, and the first inclined surface cooperates with the second inclined surface.

[0015] The movable frame is provided with a cavity opening downward, and one end of the first restoring member extends to the cavity and abuts against the movable frame.

[0016] The maximum stroke of the movable frame exceeds the stroke of the movable frame moving to the switch-on position.

[0017] The first restoring member is a straight spring or a conical spring.

[0018] It also includes a circuit board, and the movable frame is fixed with a brush, and the brush slides on the circuit board.

[0019] The movable frame is provided with a fixing groove, the fixing groove is provided with a fixing block, the brush is accommodated in the fixing groove, and the brush is connected and fixed to the fixing block.

[0020] The technical solution of the present invention has the following advantages:

[0021] 1. The present invention provides a signal switch with an anti-locking and self-locking structure. Compared with the prior art, this structure forms a synchronous limiting effect through multiple different directions, ensuring the limiting during the anti-locking and self-locking process, improving the limiting strength and limiting effect, and also increasing the service life of the signal switch.

[0022] 2. The present invention provides a signal switch with an anti-locking and self-locking structure. The first limiting portion and the second limiting portion on the locking block are respectively connected to the movable frame, thereby enhancing the locking stability between the locking block and the movable frame.

[0023] 3. The present invention provides a signal switch with an anti-locking and self-locking structure, which forms a locking cooperation in different states through the clever coordination of multiple structures, meets the functional requirements of anti-locking and self-locking, and improves the overall limiting effect.

[0024] 4. The present invention provides a signal switch with an anti-locking and self-locking structure, in which the side walls of the positioning groove form a restricting effect to prevent excessive movement of the locking block.

[0025] 5. The present invention provides a signal switch with an anti-locking and self-locking structure. The length of the limiting rib is increased, and the contact area is increased, so that the limiting rib cooperates better with the second slot to form a limiting effect.

[0026] 6. The signal switch provided by the present invention has a reverse locking and self-locking structure, and the cooperation between the inclined surfaces improves the connection reliability between the limiting rib and the second slot and the hook.

[0027] 7. The present invention provides a signal switch with an anti-locking and self-locking structure. The cavity setting prevents the first reset member from being twisted and deformed, limits the movable space of the first reset member in the moving direction of the movable frame, and ensures the reliability of the reset of the movable frame.

[0028] 8. The present invention provides a signal switch with an anti-locking and self-locking structure. The movable frame is set to an overtravel. The movable frame has an overtravel downward along a first direction, so that after the movable frame moves into place, it reaches the self-locking position. Pressing the movable frame again can release the limit lock between the movable frame and the bolt, avoiding the phenomenon of the limit lock being stuck after self-locking.

[0029] 9. The present invention provides a signal switch with an anti-locking and self-locking structure. The brush moves on the circuit board, which has a signal transmission effect. The circuit board can know the position to which the movable frame moves.

[0030] 10. The present invention provides a signal switch with an anti-locking and self-locking structure. The setting of the fixing groove and the fixing block can better achieve the fixing effect of the brush. The brush here is also provided with an elastic extension part, which is against the side wall of the fixing groove to form an elastic fixing effect, so that the brush can be fixed in different directions, thereby improving the fixing strength of the brush. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0032] Figure 1 A schematic structural diagram of a signal switch with anti-locking and self-locking structures provided by the present invention;

[0033] Figure 2 An exploded view of a signal switch with anti-locking and self-locking structures provided by the present invention;

[0034] Figure 3 A schematic diagram of a partial structure with an anti-locking and self-locking structure provided by the present invention;

[0035] Figure 4 A schematic diagram of the structure of the dynamic contact component and the static contact component provided by the present invention;

[0036] Figure 5 A schematic diagram of the structure of the bolt cover and the bolt lock provided by the present invention;

[0037] Figure 6 A schematic structural diagram of the latch provided by the present invention;

[0038] Figure 7 A schematic structural diagram of the latch provided by the present invention from another angle;

[0039] Figure 8 A schematic structural diagram of the movable frame provided by the present invention;

[0040] Figure 9 A schematic diagram of the structure of the first state provided by the present invention;

[0041] Figure 10 This is a schematic structural diagram of the movable frame and the latch in the first state provided by the present invention;

[0042] Figure 11This is a structural schematic diagram of another angle of the movable frame and the latch in the first state provided by the present invention;

[0043] Figure 12 A schematic diagram of the structure provided by the present invention moving to the overtravel position;

[0044] Figure 13 A schematic diagram of the structure of the movable frame and the latch in the overtravel position provided by the present invention;

[0045] Figure 14 A schematic diagram of the structure of the second state provided by the present invention;

[0046] Figure 15 This is a schematic structural diagram of the cooperation between the movable frame and the latch in the second state provided by the present invention;

[0047] Figure 16 for Figure 15 main view.

[0048] Description of reference numerals:

[0049] 11. Main body; 12. Movable frame; 13. Dynamic contact assembly; 14. Static contact assembly; 15. Button; 16. First reset member; 17. Latch; 18. Latch cover; 19. Second reset member; 20. Circuit board; 21. Brush; 111. Accommodating chamber; 112. Base; 113. Upper cover; 121. Connecting rod; 122. Actuating member; 123. First mating portion; 124. Second mating portion; 125. Chamber; 126. Fixing groove; 171. Lock block; 1 72. Bolt rod; 173. First limiting portion; 174. Second limiting portion; 211. Elastic extension portion; 1231. Giving groove; 1232. Second engaging groove; 1233. Hook; 1234. First engaging groove; 1241. Support block; 1261. Fixed block; 1731. Baffle; 1732. First protrusion; 1733. Limiting rib; 1741. Slide groove; 1742. Second protrusion; 12331. Second inclined surface; 17331. First inclined surface. DETAILED DESCRIPTION

[0050] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0051] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0052] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0053] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0054] Example 1

[0055] This embodiment provides a signal switch with anti-locking and self-locking structures, as shown in the attached Figures 1-16 Shown, including:

[0056] The main body 11 is provided with a receiving cavity 111 .

[0057] The movable frame 12 is housed in the accommodating chamber 111 and reciprocates along a first direction. In this embodiment, the first direction is the vertical direction. Taking the three-dimensional coordinate axis as an example, the movable frame 12 reciprocates along the Z-axis. The movable frame 12 drives the movable contact assembly 13. Here, the main body 11 also accommodates a static contact assembly 14. The dynamic contact assembly 13 and the static contact assembly 14 cooperate to turn the switch on or off. This is prior art and will not be described in detail in this embodiment. The movable frame 12 includes a connecting rod 121 and an actuator 122. One end of the connecting rod 121 is connected to the actuator 122, and the other end of the connecting rod 121 extends through the main body 11 to the outside. Here, the connecting rod 121 extends upward along the first direction to the outside. The actuator 122 is provided with a first mating portion 123 and a second mating portion 124.

[0058] The first restoring member 16 is accommodated in the accommodating chamber 111. The first restoring member 16 cooperates with the movable frame 12. Specifically, the cooperation here means that one end of the first restoring member 16 abuts against the movable frame 12, and the other end of the first restoring member 16 abuts against the accommodating chamber 111. The first restoring member 16 applies a force to the movable frame 12. In this embodiment, the first restoring member 16 specifically abuts against the actuating member 122. At this time, the first restoring member 16 applies an upward force to the movable frame 12 along the first direction. When the movable frame 12 moves downward along the first direction, it squeezes the first restoring member 16. At this time, the first restoring member 16 continuously stores energy. When the force applied to the movable frame 12 disappears, the first restoring member 16 quickly releases the energy, driving the movable frame 12 to move upward along the first direction.

[0059] The latch 17 is housed in the accommodating cavity 111 and reciprocates along a second direction. The second direction is different from the first direction and is not in the same direction. The first and second directions intersect. In this embodiment, the second direction is specifically in the horizontal direction. The X-axis direction is used as an example for description, meaning that the latch 17 reciprocates along the X-axis. The latch 17 includes a locking block 171 and a bolt rod 172. The locking block 171 is connected to one end of the bolt rod 172, and the other end of the bolt rod 172 extends through the body 11 to the outside. Here, the other end of the bolt rod 172 passes through the body 11 along the second direction. The locking block 171 is provided with a first limiting portion 173 and a second limiting portion 174. The first limiting portion 173 and the second limiting portion 174 are located in different directions and at different orientations.

[0060] The second restoring member 19 is accommodated in the accommodating cavity 111 . The second restoring member 19 cooperates with the latch 17 . The second restoring member 19 applies a force to the latch 17 . Here, the second restoring member 19 is sleeved on the bolt rod 172 .

[0061] In the first state, the first limiting portion 173 cooperates with the first matching portion 123, and the second limiting portion 174 cooperates with the second matching portion 124. The latch 17 restricts the movable frame 12 from moving in the first direction, and the switch is in the off position. At this time, it is in the reverse lock position, and the movable frame 12 cannot move in the first direction, that is, the switch cannot be turned on. When the first limiting portion 173 and the first matching portion 123 and the second limiting portion 174 and the second matching portion 124 are released, the movable frame 12 can move in the first direction, and the movable frame 12 is driven to move to the switch on position. At this time, the switch is in the on state, that is, the switch is actuated. At this time, the first limiting portion 173 cooperates with the first matching portion 123, and the second limiting portion 174 cooperates with the second matching portion 124. The latch 17 restricts the movable frame 12 from moving in the first direction, forming the second state, which is the self-locking position. The switch is in the on state, that is, the switch continues to operate, and the operator does not need to press the button 15. The switch is in a continuously operating state. Compared with the prior art, this structure forms a synchronous limiting effect in multiple different directions, ensuring the limiting in the anti-locking and self-locking processes, improving the limiting strength and limiting effect, and also increasing the service life of the signal switch.

[0062] Specifically, as attached Figure 5-Figure 16 As shown, the first limiting portion 173 and the second limiting portion 174 are arranged perpendicularly, and the first limiting portion 173 and the second limiting portion 174 are connected. Here, the first limiting portion 173 and the second limiting portion 174 cooperate to form an L-shaped structure, that is, the locking block 171 has an L-shaped structure. In addition, the locking block 171 may also include a third limiting portion, which cooperates with the first limiting portion 173 and the second limiting portion 174 to form a U-shaped structure, or the three limiting portions are respectively located on different surfaces and arranged perpendicularly between each other. The first limiting portion 173 and the second limiting portion 174 on the locking block 171 are respectively connected to the movable frame 12 in a limiting manner, thereby enhancing the stability of the locking between the locking block 171 and the movable frame 12. In addition, the first limiting portion 173 and the second limiting portion 174 can also be located on a flat surface, and the other can be arranged on an inclined surface.

[0063] Specifically, as attached Figure 5-Figure 16As shown, the first mating portion 123 includes a clearance groove 1231, a second latching groove 1232, and a hook 1233. The first mating portion 123 is located on the side of the actuator 122 near the latch 17. In this embodiment, the clearance groove 1231 opens vertically along the first direction. A first latching groove 1234 is provided on the sidewall of the clearance groove 1231 near the latch 17. The position of the first latching groove 1234 can be adjusted according to actual needs. The second latching groove 1232 is located on the side of the first mating portion 123 near the connecting rod 121. Here, the second latching groove 1232 extends toward the front, specifically the Y-axis direction. The hook 1233 is located on one side of the second latching groove 1232, near the latch 17. The second mating portion 124 includes a support block 1241. The shape and size of the support block 1241 can be adjusted according to actual needs. In this embodiment, the support block 1241 is elongated and extends downward along the first direction. The first limiting portion 173 includes a baffle 1731 and a first protrusion 1732. The first protrusion 1732 is connected to the baffle 1731, specifically to the lower end of the baffle 1731. The first protrusion 1732 is located in the extending direction of the lower end of the baffle 1731, that is, the side surface of the first protrusion 1732 is coplanar with the side surface of the baffle 1731. The baffle 1731 is provided with a limiting rib 1733. The second limiting portion 174 includes a slide groove 1741 and a second protrusion 1742. The second protrusion 1742 is located on one side of the slide groove 1741. In the first state, under the action of the first return member 16 and the second return member 19, the first protrusion 1732 abuts against the first slot 1234, and the support block 1241 abuts against the second protrusion 1742. In this state, the movable frame 12 cannot move downward in the first direction. When the latch 17 is pressed, the latch 17 moves in the second direction toward the accommodating chamber 111. At this time, the first protrusion 1732 and the baffle 1731 move into the clearance groove 1231. The baffle 1731 abuts against the side of the clearance groove 1231 away from the latch 17. At this time, the baffle 1731 cannot continue to move in the second direction toward the accommodating chamber 111. At this time, the baffle 1731 slides relative to the clearance groove 1231, that is, the baffle 1731 slides relative to the clearance groove 1231 in the first direction. The support block 1241 is located on the movement trajectory of the slide groove 1741, that is, the support block 1241 is located below the slide groove 1741 in the first direction. The support block 1241 slides relative to the slide groove 1741. The support block 1241 slides relative to the slide groove 1741 in the first direction. When the latch 17 moves and abuts against the side of the yield groove 1231 away from the latch 17, the movable frame 12 is pressed, causing the movable frame 12 to move downward in the first direction until the dynamic contact component 13 and the static contact component 14 cooperate, and the switch is in the on state, that is, the second state. At this time, the limiting rib 1733 abuts against the second slot 1232, and the support block 1241 abuts against the bottom surface of the second limiting portion 174.Through the clever coordination of multiple structures, locking cooperation in different states is formed, which meets the functional requirements of anti-locking, self-locking, etc. and improves the overall limiting effect.

[0064] Specifically, the top surface of the clearance groove 1231 on the side closest to the outer side wall of the body 11 exceeds the top surface of the hook 1233. In other words, the top surface of the side wall of the clearance groove 1231 close to the bolt cover 18 is the top surface in the first direction. The side wall of the clearance groove 1231 forms a restraining effect, preventing the locking block 171 from excessive movement. Specifically, under the action of the second return member 19, the locking block 171 can only slide out of the clearance groove 1231 through the first engaging groove 1234. The locking block 171 cannot be separated from the clearance groove 1231 at other positions.

[0065] Specifically, the limiting rib 1733 extends to the first protrusion 1732. The length of the limiting rib 1733 is increased, and the contact area is increased, so that the limiting rib 1733 can better cooperate with the second slot 1232 to form a limiting effect.

[0066] Specifically, as attached Figure 12-16 As shown, the limiting rib 1733 has a first inclined surface 17331, and the hook 1233 has a second inclined surface 12331. The first inclined surface 17331 and the second inclined surface 12331 cooperate. This cooperation refers to the corresponding cooperation between the first inclined surface 17331 and the second inclined surface 12331 after the limiting rib 1733 enters the second engaging groove 1232. At this time, the second inclined surface 12331 is located on the movement trajectory of the first inclined surface 17331. Under the action of the second return member 19, when the latch 17 moves in the second direction toward the outside of the accommodating cavity 111, the first inclined surface 17331 and the second inclined surface 12331 are in contact, forming a limiting effect. The cooperation between the inclined surfaces improves the connection reliability between the limiting rib 1733 and the second engaging groove 1232 and the hook 1233.

[0067] Specifically, as attached Figure 8 As shown, the movable frame 12 is provided with a downwardly opening chamber 125. One end of the first return member 16 extends into the chamber 125 and abuts against the movable frame 12. The provision of the chamber 125 prevents distortion of the first return member 16, limits the range of movement of the first return member 16 in the direction of movement of the movable frame 12, and ensures reliable return of the movable frame 12. The depth of the chamber 125 can be adjusted according to actual needs. In this embodiment, the chamber 125 is provided on the bottom surface of the actuator 122.

[0068] Specifically, the maximum stroke of the movable frame 12 exceeds the stroke of the movable frame 12 moving to the switch-on position. The movable frame 12 is set to an overtravel, and the movable frame 12 has an overtravel along the first direction downward. For example, the maximum stroke of the movable frame 12 is 12 mm, and the stroke of the movable frame 12 moving from the first state to the switch-on position is 10 mm. At this time, the movable frame 12 has an overtravel distance of 2 mm in the first direction, that is, continuing to press the movable frame 12 can make the movable frame 12 move 2 mm toward the bottom surface of the accommodating chamber 111. In this embodiment, the overtravel is specifically achieved by the first reset member 16, that is, when the movable frame 12 moves to the switch-on position, the first reset member 16 can continue to be compressed. When the self-locking position is reached, pressing the movable frame 12 again can release the limit lock between the movable frame 12 and the bolt 17, thereby avoiding the phenomenon of the limit lock being stuck after self-locking.

[0069] Specifically, the first reset member 16 is a straight spring or a conical spring. The second reset member 19 is a straight spring or a conical spring. Those skilled in the art can select different spring structures according to actual needs.

[0070] Specifically, a button 15 is also included. The button 15 is connected to the portion of the connecting rod 121 that extends outside the body 11. The button 15 drives the movable frame 12 to turn the switch on or off. Here, the button 15 also moves in the first direction to achieve the effect of driving the movable frame 12. In addition, the movable frame 12 can also be driven by other components.

[0071] Specifically, the bolt cover 18 is connected to the portion of the bolt rod 172 that extends outside the body 11. When the bolt cover 18 is pressed, the bolt cover 18 drives the latch 17 to move toward the accommodating chamber 111, achieving a limited locking effect between the latch 17 and the movable frame 12. In addition, the driving effect of the latch 17 can also be achieved by other components. In this embodiment, one end of the second reset member 19 abuts against the body 11, and the other end of the second reset member 19 abuts against the bolt cover 18. When the bolt cover 18 drives the latch 17 to move, the second reset member 19 is squeezed and deformed. The second reset member 19 continuously stores energy. When the force applied to the bolt cover 18 disappears or the movable frame 12 releases the limited locking between the latch 17 and the second reset member 19, the second reset member 19 quickly releases energy, driving the bolt cover 18 and the latch 17 to return to their initial positions. In addition, the bolt rod 172 can also be provided with a protruding structure to achieve compression drive of the second reset member 19.

[0072] Specifically, the body 11 includes a base 112 and an upper cover 113, which are fixedly connected to form a receiving cavity 111. The base 112 and the upper cover 113 can be connected by bolts, snap-on connections, ultrasonic welding, etc.

[0073] Specifically, it also includes a circuit board 20, and the movable frame 12 is fixed with a brush 21, which slides on the circuit board 20. The brush 21 moves on the circuit board 20, which plays a signal transmission effect, and the circuit board 20 can know which position the movable frame 12 moves to.

[0074] Specifically, the movable frame 12 is provided with a fixing slot 126, which is provided with a fixing block 1261. The brush 21 is accommodated in the fixing slot 126 and is connected and fixed to the fixing block 1261. The provision of the fixing slot 126 and the fixing block 1261 better secures the brush 21. Here, the brush 21 is further provided with an elastic extension 211, which abuts against the sidewall of the fixing slot 126 to achieve an elastic fixing effect, allowing the brush 21 to be fixed in different directions, thereby improving the fixing strength of the brush 21.

[0075] Specifically, the connecting rod 121 and the actuating member 122 are integrally formed, and the locking block 171 and the bolt rod 172 are integrally formed. In addition, a sealing structure can be added to the movable frame 12 and the bolt 17 to improve the sealing effect of the entire switch.

[0076] Specifically, the working process of this structure is as follows: in the first state, that is, the anti-locking position, under the action of the first reset member 16 and the second reset member 19, the actuator 122 is located near the top surface of the accommodating cavity 111, and the movable frame 12 does not drive the movable contact component 13 to cooperate with the static contact component 14. At this time, the switch is in the off state, the first protrusion 1732 is abutted against the first slot 1234, and the second protrusion 1742 is located below the support block 1241, so that the movable frame 12 cannot move downward along the first direction. Only when the limit locking relationship is released can the movable frame 12 move downward along the first direction.

[0077] Pressing the bolt cover 18 causes the bolt cover 18 to move the latch 17 in the second direction toward the accommodating chamber 111. Specifically, the accommodating chamber 111 refers to the latch 17 moving toward the side of the movable frame 12, as the movable frame 12 is located at the center of the accommodating chamber 111. After the latch 17 moves, the first protrusion 1732 and the baffle 1731 move into the clearance groove 1231. The baffle 1731 abuts against the side of the clearance groove 1231 away from the bolt 17. At this time, the baffle 1731 cannot continue to move in the second direction toward the accommodating chamber 111. The baffle 1731 now slides relative to the clearance groove 1231 in the first direction. Simultaneously, the second protrusion 1742 moves together. At this time, the support block 1241 is located on the movement trajectory of the slide groove 1741, that is, the support block 1241 is located below the slide groove 1741 in the first direction, and the support block 1241 slides relative to the slide groove 1741 in the first direction. At this time, the latch 17 releases the limit lock on the movable frame 12, and the movable frame 12 can move downward along the first direction. It should be noted that during the movement of the latch 17, the second reset member 19 is squeezed, so that the second reset member 19 continues to store energy.

[0078] When the latch 17 moves to its full position, the force applied to the bolt cover 18 cannot be withdrawn, so that the latch 17 remains in this position. At this time, the button 15 is pressed to move the movable frame 12 downward along the first direction. When it moves to a certain position, the movable contact component 13 and the static contact component 14 are connected. The button 15 is continued to be pressed downward (overtravel) until the movable frame 12 can no longer move downward. At this time, the latch 17 is located above the actuator 122. Since the force applied to the bolt cover 18 has not been withdrawn, the latch 17 continues to move toward the movable frame 12 along the second direction until the baffle 1731 is against the connecting rod 121 and cannot move. When the latch 17 cannot continue to move toward the movable frame 12 along the second direction, the movable frame 12 cannot continue to move downward, and the force applied to the button 15 is first released. Due to the action of the first reset member 16, the movable frame 12 moves upward along the first direction, the limiting rib 1733 abuts against the second slot 1232, and the support block 1241 abuts against the bottom surface of the second limiting portion 174, forming a re-locking of the movable frame 12. The movable frame 12 can only move a short distance before being limited and locked. It can also be considered that the movable frame 12 moves upward to the switch connection position and is limited and locked. When the force applied to the bolt cover 18 is released, the second reset member 19 is in the energy storage state. When the limiting rib 1733 abuts against the second slot 1232, the hook 1233 restricts the limiting rib 1733 from moving outward along the second direction. At this time, the bolt 17 is also locked and cannot move, forming the second state, that is, the self-locking position. There is no need to press the button 15 or the bolt cover 18. At this time, the switch is always in the on position. In the self-locking position, the first reset member 16 and the second reset member 19 are both in the energy storage state.

[0079] When releasing the self-locking function, a force must first be applied to the button 15 (no force is applied to the bolt cover 18) to drive the movable frame 12 to move downward (overtravel). The limiting rib 1733 moves to the top of the second slot 1232, and a gap is formed between the support block 1241 and the bottom surface of the second limiting portion 174. At this time, the bolt 17 is unlocked. Under the action of the second reset member 19, the bolt 17 slides outward along the second direction, and the baffle 1731 re-enters the clearance groove 1231. The baffle 1731 and the side wall of the clearance groove 1231 close to the bolt cover 18 are abutted to form a limit. In this state, the baffle 1731 can Sliding relative to the give way slot 1231, the support block 1241 can slide relative to the slide slot 1741, canceling the force applied to the button 15, and the movable frame 12 moves upward along the first direction. The dynamic contact component 13 and the static contact component 14 are separated, forming the disconnection of the switch. When the first protrusion 1732 moves to a position close to the first slot 1234, under the action of the second reset member 19, the first protrusion 1732 moves along the second direction toward the side of the bolt cover 18, so that the first protrusion 1732 enters the first slot 1234 and abuts against the first slot 1234. At this time, the entire switch re-enters the first state, that is, the locked position.

[0080] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A signal switch with anti-locking and self-locking structure, characterized in that: include: A body (11), wherein the body (11) is provided with a receiving cavity (111); A movable frame (12), the movable frame (12) is accommodated in the accommodating cavity (111), the movable frame (12) reciprocates along a first direction, and the movable frame (12) drives the movable contact component (13); the movable frame (12) includes a connecting rod (121) and an actuating member (122), one end of the connecting rod (121) is connected to the actuating member (122), and the other end of the connecting rod (121) passes through the body (11) and extends to the outside, and the actuating member (122) is provided with a first matching portion (123) and a second matching portion (124); a first restoring member (16), the first restoring member (16) being accommodated in the accommodating cavity (111), the first restoring member (16) cooperating with the movable frame (12), and the first restoring member (16) imparting an acting force to the movable frame (12); A latch (17), the latch (17) is accommodated in the accommodating cavity (111), and the latch (17) reciprocates along the second direction; the latch (17) includes a locking block (171) and a bolt rod (172), the locking block (171) is connected to one end of the bolt rod (172), and the other end of the bolt rod (172) passes through the body (11) and extends to the outside, the locking block (171) is provided with a first limiting portion (173) and a second limiting portion (174), and the first limiting portion (173) and the second limiting portion (174) are located in different directions; a second restoring member (19), the second restoring member (19) being accommodated in the accommodating cavity (111), the second restoring member (19) cooperating with the latch (17), and the second restoring member (19) applying a force to the latch (17); In the first state, the first limiting portion (173) cooperates with the first matching portion (123), the second limiting portion (174) cooperates with the second matching portion (124), the latch (17) restricts the movable frame (12) from moving in the first direction, and the switch is in the disconnected position; the cooperation between the first limiting portion (173) and the first matching portion (123), and the second limiting portion (174) and the second matching portion (124) is released, the movable frame (12) moves in the first direction, the switch is in the connected position, the first limiting portion (173) cooperates with the first matching portion (123), the second limiting portion (174) cooperates with the second matching portion (124), the latch (17) restricts the movable frame (12) from moving in the first direction, and a second state is formed; The first matching portion (123) is provided with a yield groove (1231), a second clamping groove (1232), and a hook (1233); the side wall of the yield groove (1231) is provided with a first clamping groove (1234), and the hook (1233) is located on one side of the second clamping groove (1232); the second matching portion (124) is provided with a support block (1241); the first limiting portion (173) is provided with a baffle (1731) and a first protrusion (1732), the first protrusion (1732) is connected to the baffle (1731), and the baffle (1731) is provided with a limiting rib (1733); the second limiting portion (174) is provided with a slide groove (1741) and a second protrusion (1742), and the second protrusion (1742) is located at the One side of the slide groove (1741); in the first state, the first protrusion (1732) is against the first card groove (1234), and the support block (1241) is against the second protrusion (1742); the latch (17) is pressed, the baffle (1731) is located in the give way groove (1231), and the baffle (1731) slides relative to the give way groove (1231), the support block (1241) is located on the movement trajectory of the slide groove (1741), and the support block (1241) slides relative to the slide groove (1741); in the second state, the limiting rib (1733) is against the second card groove (1232), and the support block (1241) is against the bottom surface of the second limiting portion (174).

2. The signal switch with anti-locking and self-locking structure according to claim 1, characterized in that: The first limiting portion (173) and the second limiting portion (174) are arranged vertically, and the first limiting portion (173) and the second limiting portion (174) are connected.

3. The signal switch with anti-locking and self-locking structure according to claim 1, characterized in that: The top surface of the clearance groove (1231) on the side close to the outer wall of the main body (11) exceeds the top surface of the hook (1233).

4. The signal switch with anti-locking and self-locking structure according to claim 1, characterized in that: The limiting rib (1733) extends to the first protrusion (1732).

5. The signal switch with anti-locking and self-locking structure according to claim 1, characterized in that: The limiting rib (1733) is provided with a first inclined surface (17331), and the hook (1233) is provided with a second inclined surface (12331), and the first inclined surface (17331) cooperates with the second inclined surface (12331).

6. The signal switch with anti-locking and self-locking structure according to claim 1, characterized in that: The movable frame (12) is provided with a chamber (125) opening downward, and one end of the first reset member (16) extends to the chamber (125) and abuts against the movable frame (12).

7. The signal switch with anti-locking and self-locking structure according to claim 1, characterized in that: The maximum stroke of the movable frame (12) exceeds the stroke of the movable frame (12) moving to the switch-on position.

8. The signal switch with anti-locking and self-locking structure according to claim 1, characterized in that: It also includes a circuit board (20), and the movable frame (12) is fixed with a brush (21), and the brush (21) slides on the circuit board (20).

9. The signal switch with anti-locking and self-locking structure according to claim 8, characterized in that: The movable frame (12) is provided with a fixing groove (126), the fixing groove (126) is provided with a fixing block (1261), the brush (21) is accommodated in the fixing groove (126), and the brush (21) is connected and fixed to the fixing block (1261).

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