Self-locking reset type normally-open and normally-closed waterproof button switch
By introducing a self-locking reset structure and light-transmitting material into the push button switch, combined with the sealed and waterproof design, the problem of water and dust entering the push button switch is solved, and intuitive judgment of waterproof and dust protection and equipment power-on status is achieved, improving service life and operation stability.
Patent Information
- Application Number
- CN202422346263.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-09-26
AI Technical Summary
Existing push button switches are prone to water or dust during use, resulting in short circuits and poor functions, and it is impossible to intuitively determine whether the device is powered on.
A self-locking reset normally open and closed waterproof button switch is designed, which adopts a pressing self-locking structure in a pressing ballpoint pen, combining a light-transmitting material button and a sealed waterproof structure to ensure that the switch is waterproof and dust-proof, and indicates whether the device is powered up through the lamp beads.
It realizes effective waterproof and dustproof of switches, simple operation, long service life, can quickly judge the power-on status of the equipment and stable operation.
Smart Images
Figure CN223167375U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of switches, in particular to a self-locking and resetting normally open and normally closed waterproof push-button switch. Background Art
[0002] A push-button switch is also called a key switch. When in use, it controls the moving contact to contact or separate from the static contact by pressing the button to achieve the connection or disconnection of the circuit, and is widely used in electronic devices, etc. In the prior art, the housing of some push-button switches is composed of multiple connected components, and there will inevitably be gaps between the connected components, which are likely to cause water or dust to enter the switch internally, resulting in problems such as short circuits and poor functions of the switch. Therefore, when designing a push-button switch, various usage environments should be considered. For example, some usage environments have a large amount of dust and water vapor. Therefore, to ensure the performance of the push-button switch, the seams on the housing should be minimized as much as possible, and the inevitable seams should be sealed to ensure the sealing and protection performance of the push-button switch; in addition, the existing push-button switches generally do not have indicator lights, so it is often impossible to intuitively judge whether the device is powered on. It is necessary to judge by whether the device operates after pressing the button to connect the circuit, which is rather inconvenient. Content of the Utility Model
[0003] The technical problem to be solved by the utility model is to overcome the above-mentioned technical defects and provide a self-locking and resetting normally open and normally closed waterproof push-button switch.
[0004] To solve the above technical problem, the technical solution provided by the utility model is a self-locking and resetting normally open and normally closed waterproof push-button switch: including a hollow tubular housing, a button, a moving contact unit, a first spring and a base are arranged in the housing, and a static contact is installed on the base; the button includes a hollow guide post and an upper end plate integrally fixed to the upper end of the guide post; a stepped surface facing upward is arranged on the inner wall of the housing; a return spring is sleeved outside the guide post, and the return spring is located between the upper end plate and the stepped surface. The moving contact unit includes a movable contact holder that can move up and down, a moving contact installed on the contact holder, and a second spring installed on the contact holder to provide a downward elastic force for the moving contact. A self-locking structure is arranged between the button and the moving contact unit in the housing, and the first spring is arranged between the contact holder and the base; the self-locking structure adopts the pressing self-locking structure in a ballpoint pen; a sealing and waterproof structure is arranged between the button and the housing; an installation post extending upward into the guide post is arranged at the center of the contact holder, a lamp bead is installed at the upper end of the installation post, 2 wiring terminals are arranged on the base, 2 first springs are provided, the 2 wirings of the lamp bead are respectively connected to the 2 first springs, and each first spring is respectively connected to the corresponding wiring terminal. The button is made of a light-transmitting material;
[0005] Two of the static contacts are connected with a U-shaped metal part. One wing plate of the U-shaped metal part is fixed to the lower side of the static contact, and the other wing plate of the U-shaped metal part is located above the corresponding moving contact. Thus, when the moving contact moves away from the static contact, the upper side of the moving contact contacts with the U-shaped metal part, and when the moving contact moves close to the static contact, the moving contact does not contact with the U-shaped metal part and the corresponding static contact.
[0006] Further, the waterproof structure includes a waterproof rubber cap, which is arranged on the upper side of the upper end plate. The periphery of the waterproof rubber cap is pressed by a pressing ring, and the pressing ring is threadedly connected to the upper end of the housing. An upwardly open sealing groove is provided at the upper end of the housing, and a sealing ring adapted to the sealing groove extends downward from the edge of the waterproof rubber cap. The sealing ring is pressed into the sealing groove by the pressing ring.
[0007] Further, the waterproof structure includes a waterproof rubber sleeve. A limiting baffle is provided at the lower part of the outer edge of the upper end plate, and a button cap is snap-connected to the top of the upper end plate. A circular waterproof rubber sleeve is sleeved outside the button cap, and the lower edge of the button cap presses the inner edge of the waterproof rubber sleeve against the limiting baffle. A pressing ring is screwed to the upper end of the housing, and the pressing ring presses the outer edge of the waterproof rubber sleeve against the housing. The top of the button cap exposed in the middle of the pressing ring forms a switch pressing part, and the waterproof rubber sleeve is made of rubber or silica gel material.
[0008] Further, an annular clamping protrusion is provided on the outer peripheral wall of the upper end plate above the limiting baffle, and the button cap is clamped to the upper end plate through the annular clamping protrusion. The waterproof rubber sleeve is an inner and outer double-layer structure made of rubber or silica gel material. The bottom edge of the inner layer of the waterproof rubber sleeve extends inward to form a pressing edge, and the lower edge of the button cap presses the pressing edge against the limiting baffle. An anti-detachment flange extending upward is provided on the inner edge of the pressing edge, and the anti-detachment flange is limited in the annular space surrounded by the lower edge of the button cap, the annular clamping protrusion and the limiting baffle.
[0009] Further, an upwardly open sealing groove is provided at the upper end of the housing, the lower end of the outer layer of the waterproof rubber sleeve is embedded in the sealing groove, and an annular pressing edge is provided on the outer peripheral surface of the outer layer of the waterproof rubber sleeve. The pressing ring presses the annular pressing edge against the upper end surface of the housing.
[0010] Further, the button cap is made of a light-transmitting material.
[0011] Further, a light-shielding sheet with a hollowed-out area is provided on the upper side of the upper end plate.
[0012] Further, guide strips are provided on the outer wall of the guide post in the up-and-down direction, and corresponding guide grooves are provided on the inner wall of the housing. The guide strips cooperate with the guide grooves to provide guidance for the up-and-down movement of the button.
[0013] Further, a downward annular retaining platform and an inwardly protruding clamping platform are provided at the inner bottom of the housing. The base is inserted into the inner bottom of the housing and abuts against the annular retaining platform, and a clamping groove for clamping with the clamping platform is provided on the side wall of the base.
[0014] The advantages of the present utility model compared with the prior art are as follows: By providing a sealing and waterproof structure between the button and the housing, the present utility model can effectively prevent water and dust; by installing a lamp bead in the button and using a light-transmitting material for the button, it is easy to determine whether the device is powered on, which is fast and convenient. The self-locking structure adopts the pressing self-locking structure in a ballpoint pen, with simple operation, stable movement, not easily damaged, and long service life, having good practicability. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic structural diagram when the upper end of the button cap is flush with the waterproof rubber sleeve in Embodiment 1 of the present utility model.
[0016] Figure 2 It is Figure 1 the cross-sectional structural diagram of
[0017] Figure 3 It is Figure 1 the exploded structural diagram of
[0018] Figure 4 It is Figure 1 the structural diagram of the button in
[0019] Figure 5 It is Figure 1 the structural diagram of the waterproof rubber sleeve in
[0020] Figure 6 It is Figure 1 the partial structural diagram of
[0021] Figure 7 It is a schematic structural diagram when the upper end of the button cap extends a certain length out of the housing in Embodiment 1 of the present utility model.
[0022] Figure 8 It is a schematic structural diagram of Embodiment 2 of the present utility model.
[0023] Figure 9 It is the cross-sectional structural diagram of Embodiment 2 of the present utility model.
[0024] Figure 10 It is the cross-sectional structural diagram when the self-locking structure is cancelled in the present utility model to form a normally open waterproof button switch.
[0025] Figure 11 It is Figure 6 the exploded cross-sectional structural diagram of DETAILED DESCRIPTION OF THE EMBODIMENTS
[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. Components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.
[0027] Embodiment 1, in combination with the attached Figure 1-7 As shown in FIGS. 10 and 11, a self-locking and resetting normally open and normally closed waterproof push-button switch includes a hollow tubular housing 1. A button 2, a moving contact unit 7, a first spring 71, and a base 9 are arranged in the housing 1. A static contact 91 is installed on the base 9. The button 2 includes a hollow guide post 22 and an upper end plate 21 integrally fixed to the upper end of the guide post 22. An upward step surface 11 is provided on the inner wall of the housing 1. A return spring 221 is sleeved outside the guide post 22. The return spring 221 is located between the upper end plate 21 and the step surface 11. The moving contact unit 7 includes a movable contact holder 73 that can move up and down, a moving contact 75 installed on the contact holder 73, and a second spring 74 installed on the contact holder 73 to provide a downward elastic force for the moving contact 75. A self-locking structure 8 is arranged between the button 2 and the moving contact unit 7 in the housing 1. The first spring 71 is arranged between the contact holder 73 and the base 9. The self-locking structure 8 adopts the pressing self-locking structure in a pressing ballpoint pen. A sealing and waterproof structure is provided between the button 2 and the housing 1. An installation post 76 extending upward into the guide post 22 is provided at the center of the contact holder 73. A lamp bead 10 is installed at the upper end of the installation post 76. Two wiring terminals 15 are provided on the base 9. There are two first springs 71. The two wirings of the lamp bead 10 are respectively connected to the two first springs 71. Each first spring 71 is respectively connected to the corresponding wiring terminal 15. The button 2 is made of a light-transmitting material.
[0028] The waterproof structure includes a waterproof rubber sleeve 4. A limiting baffle 211 is provided at the lower part of the outer edge of the upper end plate 21. A button cap 3 is snap-connected to the top of the upper end plate 21. A circular waterproof rubber sleeve 4 is sleeved outside the button cap 3. The lower edge of the button cap 3 presses the inner edge of the waterproof rubber sleeve 4 against the limiting baffle 211. A pressing ring 5 is screwed to the upper end of the housing 1. The pressing ring 5 presses the outer edge of the waterproof rubber sleeve 4 against the housing 1. The top of the button cap 3 exposed in the middle of the pressing ring 5 forms a switch pressing part. The waterproof rubber sleeve 4 is made of rubber or silica gel material. By pressing the button cap 3, the pressing of the button 2 is realized, the contact / separation between the moving contact 75 and the static contact 91 is realized, and the self-locking when the moving contact 75 and the static contact 91 are in contact / separation is realized through the self-locking structure 8, achieving normally open and normally closed states. The light emitted by the lamp bead 10 is scattered outward through the button 2 and the button cap 3 to achieve a lighting indication effect.
[0029] Two of the static contact heads 91 are connected with a U-shaped metal part 92. One wing plate of the U-shaped metal part 92 is fixed on the lower side of the static contact head 91, and the other wing plate of the U-shaped metal part 92 is located above the corresponding moving contact head 75. Thus, when the moving contact head 75 moves away from the static contact head 91, the upper side of the moving contact head 75 contacts the U-shaped metal part 92, and when the moving contact head 75 moves close to the static contact head 91, the moving contact head 75 does not contact the U-shaped metal part 92 and the corresponding static contact head 91. Thus, a normally closed set with the U-shaped metal part 92 is realized, and a normally open set without the U-shaped metal part 92 is realized.
[0030] Particularly, the upper end of the button cap 3 can be designed to be flush with the waterproof rubber sleeve 4, or can be designed to extend a certain length out of the housing 1, which is designed according to actual needs and is not limited herein.
[0031] An annular clamping protrusion 212 is arranged on the outer peripheral wall of the upper end plate 21 above the limit baffle 211, and the button cap 3 is clamped with the upper end plate 21 through the annular clamping protrusion 212; the waterproof rubber sleeve 4 is an inner and outer double-layer structure made of rubber or silica gel material. The bottom edge of the inner layer of the waterproof rubber sleeve 4 extends inwards to form a pressing edge 40, and the lower end edge of the button cap 3 presses the pressing edge 40 against the limit baffle 211; an anti-detachment flange 41 extending upwards is arranged on the inner edge of the pressing edge 40, and the anti-detachment flange 41 is limited in the annular space surrounded by the lower edge of the button cap 3, the annular clamping protrusion 212 and the limit baffle 211.
[0032] A sealing groove 12 with an upward opening is arranged at the upper end of the housing 1, the lower end of the outer layer of the waterproof rubber sleeve 4 is embedded in the sealing groove 12, and an annular pressing edge 42 is arranged on the outer peripheral surface of the outer layer of the waterproof rubber sleeve 4. The pressing ring 5 presses the annular pressing edge 42 against the upper end surface of the housing 1.
[0033] The button cap 3 is made of a light-transmitting material.
[0034] A light-shielding sheet 6 with a hollowed-out area is arranged on the upper side of the upper end plate 21. The hollowed-out area of the light-shielding sheet 6 can be a warning sign or a trademark logo or a symbol logo etc. pre-made according to customer requirements, and the light emitted by the lamp bead 10 can pass through the hollowed-out area to present a corresponding pattern.
[0035] Guide strips 222 arranged in the up-and-down direction are arranged on the outer wall of the guide post 22, and corresponding guide grooves are arranged on the inner wall of the housing 1. The guide strips 222 cooperate with the guide grooves to provide guidance for the up-and-down movement of the button 2.
[0036] At the inner bottom of the said outer shell 1, there is a downward annular retaining platform 13 and an inwardly protruding clamping platform. The base 9 is inserted into the inner bottom of the outer shell 1 and abuts against the annular retaining platform 13. On the side wall of the base 9, there is a clamping groove that is clamped with the clamping platform.
[0037] Embodiment 2, in combination with the attached Figure 8-9 A self-locking and resetting normally open and normally closed waterproof push-button switch, comprising a hollow tubular outer shell 1. Inside the outer shell 1, there are arranged a button 2, a moving contact unit 7, a first spring 71 and a base 9. On the base 9, there is installed a static contact 91. The button 2 includes a hollow guide post 22 and an upper end plate 21 integrally fixed to the upper end of the guide post 22. On the inner wall of the outer shell 1, there is an upward step surface 11. Outside the guide post 22, there is a reset spring 221 sleeved, and the reset spring 221 is located between the upper end plate 21 and the step surface 11. The moving contact unit 7 includes a movable contact holder 73 that can move up and down, a moving contact 75 installed on the movable contact holder 73, and a second spring 74 installed on the movable contact holder 73 to provide a downward elastic force for the moving contact 75. Inside the outer shell 1, a self-locking structure 8 is arranged between the button 2 and the moving contact unit 7. The first spring 71 is arranged between the movable contact holder 73 and the base 9. The self-locking structure 8 adopts the pressing self-locking structure in a pressing ballpoint pen. A sealing and waterproof structure is arranged between the button 2 and the outer shell 1. In the center of the movable contact holder 73, there is an installation post 76 extending upward into the guide post 22. At the upper end of the installation post 76, there is installed a lamp bead 10. On the base 9, there are 2 wiring terminals 15. There are 2 first springs 71. The 2 wirings of the lamp bead 10 are respectively connected to the 2 first springs 71. Each first spring 71 is respectively connected to the corresponding wiring terminal 15. The button 2 is made of a light-transmitting material.
[0038] The waterproof structure includes a waterproof rubber cap 16. The waterproof rubber cap 16 is arranged on the upper side of the upper end plate 21. The periphery of the waterproof rubber cap 16 is pressed by a pressing ring 5. The pressing ring 5 is threadedly connected to the upper end of the outer shell 1. At the upper end of the outer shell 1, there is a sealing groove 12 with an upward opening. The edge of the waterproof rubber cap 16 extends downward with a sealing ring 14 that is matched with the sealing groove 12. The sealing ring 14 is pressed into the sealing groove 12 by the pressing ring 5. By pressing the waterproof rubber cap 16, the pressing of the button 2 is realized, the contact / separation between the moving contact 75 and the static contact 91 is realized, and the self-locking when the moving contact 75 and the static contact 91 are in contact / separation is realized through the self-locking structure 8, achieving normally open and normally closed. The light emitted by the lamp bead 10 is scattered outward through the button 2 and the button cap 3 to play a lighting indication effect.
[0039] Two of the static contacts 91 are connected with a U-shaped metal part 92. One wing plate of the U-shaped metal part 92 is fixed on the lower side of the static contact 91, and the other wing plate of the U-shaped metal part 92 is located above the corresponding moving contact 75. Thus, when the moving contact 75 moves away from the static contact 91, the upper side of the moving contact 75 contacts the U-shaped metal part 92, and when the moving contact 75 moves close to the static contact 91, the moving contact 75 does not contact the U-shaped metal part 92 and the corresponding static contact 91. Thus, a normally closed set with the U-shaped metal part 92 is realized, and a normally open set without the U-shaped metal part 92 is realized.
[0040] A light-shielding sheet 6 with a hollowed-out area is arranged on the upper side of the upper end plate 21. The hollowed-out area of the light-shielding sheet 6 can be a warning sign or a trademark logo or a symbol logo etc. pre-made according to customer requirements, and the light emitted by the lamp beads 10 can pass through the hollowed-out area to present corresponding patterns.
[0041] Particularly, in Embodiment 1 and Embodiment 2 of the present invention, when the self-locking structure 8 is cancelled, this self-locking and reset normally open and normally closed waterproof push-button switch becomes a normally open waterproof push-button switch, as shown in the appendix Figure 10 .
[0042] In the description of the embodiments of the present invention, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of this invention is usually placed during use, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, terms such as "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.
[0043] In addition, if terms such as "horizontal", "vertical", "hanging" and other terms do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that this structure must be completely horizontal, but can be slightly inclined.
[0044] In the description of the embodiments of the present invention, "a plurality of" represents at least two.
[0045] In the description of the embodiments of the present utility model, it should also be noted that unless otherwise clearly specified and defined, if the terms "arranged", "installed", "connected", "coupled" are used, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0046] The above description of the present utility model and its embodiments is not restrictive. What is shown in the drawings is only one of the embodiments of the present utility model, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and design similar structural modes and embodiments without creative efforts without departing from the purpose of the creation of the present utility model, they shall fall within the protection scope of the present utility model.
Claims
1. A self-locking reset type normally open and normally closed waterproof push-button switch, comprising a hollow tubular housing (1), in which a button (2), a moving contact unit (7), a first spring (71) and a base (9) are arranged, and a static contact (91) is installed on the base (9); the button (2) comprises a hollow guide post (22) and an upper end plate (21) integrally fixed to the upper end of the guide post (22); a upward step surface (11) is arranged on the inner wall of the housing (1); a return spring (221) is sleeved outside the guide post (22), and the return spring (221) is located between the upper end plate (21) and the step surface (11), and is characterized in that: The moving contact unit (7) comprises a movable contact holder (73) that can move up and down, a moving contact (75) installed on the contact holder (73), and a second spring (74) installed on the contact holder (73) to provide a downward elastic force for the moving contact (75). A self-locking structure (8) is arranged between the button (2) and the moving contact unit (7) inside the housing (1), and the first spring (71) is arranged between the contact holder (73) and the base (9); The self-locking structure (8) adopts the pressing self-locking structure in a pressing ballpoint pen; A sealing and waterproof structure is arranged between the button (2) and the housing (1); An installation post (76) extending upward into the guide post (22) is arranged at the center of the contact holder (73), a lamp bead (10) is installed at the upper end of the installation post (76), 2 wiring terminals (15) are arranged on the base (9), 2 first springs (71) are provided, the 2 wirings of the lamp bead (10) are respectively connected to the 2 first springs (71), each first spring (71) is respectively connected to the corresponding wiring terminal (15), and the button (2) is made of a light-transmitting material; One of the two static contacts (91) is connected with a U-shaped metal part (92). One wing plate of the U-shaped metal part (92) is fixed under the static contact (91), and the other wing plate of the U-shaped metal part (92) is located above the corresponding moving contact (75). Thus, when the moving contact (75) moves away from the static contact (91), the upper side of the moving contact (75) contacts the U-shaped metal part (92), and when the moving contact (75) moves close to the static contact (91), the moving contact (75) does not contact the U-shaped metal part (92) and the corresponding static contact (91).
2. The self-locking and reset normally open and normally closed waterproof push-button switch according to claim 1, characterized in that: The waterproof structure comprises a waterproof rubber cap (16), the waterproof rubber cap (16) is arranged on the upper side of the upper end plate (21), the periphery of the waterproof rubber cap (16) is pressed by a pressing ring (5), and the pressing ring (5) is threadedly connected to the upper end of the housing (1); an upwardly open sealing groove (12) is arranged at the upper end of the housing (1), a sealing ring (14) matching the sealing groove (12) extends downward from the edge of the waterproof rubber cap (16), and the sealing ring (14) is pressed into the sealing groove (12) by the pressing ring (5).
3. A self-locking and resetting normally open and normally closed waterproof push-button switch according to claim 1, characterized in that: The waterproof structure includes a waterproof rubber sleeve (4). A limit baffle (211) is provided at the lower part of the outer edge of the upper end plate (21). A key cap (3) is snap-connected to the top of the upper end plate (21). An annular waterproof rubber sleeve (4) is sleeved outside the key cap (3). The lower edge of the key cap (3) presses the inner edge of the waterproof rubber sleeve (4) against the limit baffle (211). A pressing ring (5) is screwed to the upper end of the outer shell (1). The pressing ring (5) presses the outer edge of the waterproof rubber sleeve (4) against the outer shell (1). The top of the key cap (3) exposed in the middle of the pressing ring (5) forms a switch pressing part. The waterproof rubber sleeve (4) is made of rubber or silica gel material.
4. The self-locking and resetting normally open and normally closed waterproof push-button switch according to claim 3, wherein: An annular clamping projection (212) is provided on the outer peripheral wall of the upper end plate (21) above the limit baffle (211). The key cap (3) is clamped to the upper end plate (21) through the annular clamping projection (212). The waterproof rubber sleeve (4) is an inner and outer double-layer structure made of rubber or silica gel material. The bottom edge of the inner layer of the waterproof rubber sleeve (4) extends inwards to form a pressing edge (40). The lower edge of the key cap (3) presses the pressing edge (40) against the limit baffle (211). An anti-disengagement flange (41) extending upwards is provided on the inner edge of the pressing edge (40). The anti-disengagement flange (41) is limited in the annular space surrounded by the lower edge of the key cap (3), the annular clamping projection (212) and the limit baffle (211).
5. The self-locking reset type normally open and normally closed waterproof push-button switch according to claim 4, characterized in that: An upwardly open sealing groove (12) is provided at the upper end of the outer shell (1). The lower end of the outer layer of the waterproof rubber sleeve (4) is embedded in the sealing groove (12). An annular pressing edge (42) is provided on the outer peripheral surface of the outer layer of the waterproof rubber sleeve (4). The pressing ring (5) presses the annular pressing edge (42) against the upper end surface of the outer shell (1).
6. A self-locking and resetting normally open and normally closed waterproof push-button switch according to claim 3, characterized in that: The key cap (3) is made of a light-transmitting material.
7. A self-locking and resetting normally open and normally closed waterproof push-button switch according to any one of claims 2 or 6, characterized in that: A light-shielding sheet (6) with a hollowed-out area is provided on the upper side of the upper end plate (21).
8. A self-locking and resetting normally open and normally closed waterproof push-button switch according to claim 1, characterized in that: Guide strips (222) are provided on the outer wall of the guide post (22) in the up-and-down direction. Corresponding guide grooves are provided on the inner wall of the outer shell (1). The guide strips (222) cooperate with the guide grooves to provide guidance for the up-and-down movement of the button (2).
9. The self-locking and reset normally open and normally closed waterproof push-button switch according to claim 1, wherein: An annular retaining platform (13) facing downwards and a clamping platform protruding inwards are provided at the inner bottom of the outer shell (1). The base (9) is inserted into the inner bottom of the outer shell (1) and abuts against the annular retaining platform (13). A clamping groove engaged with the clamping platform is provided on the side wall of the base (9).