A push-button switch with water adsorption at the button

Abstract

The present invention discloses a push-button switch with water removal by adsorption at the button, which includes a switch housing, a limiting mechanism, a waterproof mechanism, a detection mechanism, a cleaning mechanism, and an auxiliary mechanism. A fixing plate is fixedly installed on the inner bottom wall of the switch housing. A rotating rod is rotatably installed on the outer surface of the fixing plate. A fifth spring is fixedly installed at the top of the fixing plate. The free end of the fifth spring is fixedly installed with a limiting plate. Moving blocks are fixedly installed on both sides of the limiting plate. In the push-button switch with water removal by adsorption at the button of the present invention, by setting the absorbent cotton, the through groove, the air cylinder, and the pressing rod, when the push-button switch is not pressed and used, the water source can be reversed by the inclined moving plate, facilitating the absorbent cotton to adsorb the water source on the outer surface of the switch housing. By pressing the button, the negative pressure generated inside the air cylinder enables the absorbent cotton to quickly absorb water, that is, the absorbent cotton can quickly absorb water in cooperation with the negative pressure suction, and instantly adsorb and remove the remaining water on the surface.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical switches, and particularly relates to a push-button switch with water removal by adsorption at the button. Background Art

[0002] In the input operation parts of various electronic devices, a horizontal push-type push-button switch that presses parallel to the surface of the installed wiring board is mostly used. The buttons used in various electrical appliances are an important component for human-machine interaction and are used very frequently. Currently, the button structure usually consists of a micro switch or reed contacts, a return spring, an indicator light, etc.

[0003] In this regard, a push-button switch disclosed in Chinese Patent Application No. CN 104734684 A belongs to the field of elevator accessories and is designed to solve the problem that the contacts of existing elevator push-button switches are prone to failure. A push-button switch includes a housing and a button piece provided at the end of the housing, and further includes a magnetic element that can be linked with the button piece, a magnetoresistive element disposed opposite to the magnetic element, and an elastic element for resetting the button piece provided in the housing. Among them, the magnetoresistive element is used to judge whether the button piece is pressed by sensing the magnetic field intensity of the magnetic element, and then control the on-off of the push-button switch. This push-button switch solves the problem that the contacts of elevator push-button switches are prone to failure, prolongs the service life, and has a lower manufacturing cost. However, this push-button switch still has some problems in specific use:

[0004] 1. The existing push-button switch has a movable contact and a static contact built in, and the closed circuit is realized by the movement of the movable contact touching the static contact. Therefore, such a movable structure generates a certain gap at the button. When in use, if not careful, water may enter along the gap, affecting the service life and easily causing dangerous accidents such as short circuits. Currently, although some switches are provided with sealing strips inside, after long-term use, they will age, and it will also affect and hinder the normal opening and closing of the button. Some are provided with absorbent cotton strips to deal with moisture, but the water absorption capacity of the absorbent cotton itself is very limited, and its adsorption capacity drops greatly after absorbing water, so it cannot play a good waterproof role for the actual water ingress situation.

[0005] 2. When the existing push-button switch is in use, two permanent magnets with the same polarity are arranged in the button housing of the push-button switch, and the two-way conduction is realized by the mutual repulsion of the same polarity of the permanent magnets. However, during the actual use of the push-button switch, the failure rate of the button has been remaining high. Since there are many parts built in the push-button switch, when the push-button switch fails, it is necessary to check one by one, so it takes more time to check, reducing the work efficiency.

[0006] 3. When the existing push-button switch is in use, it generally needs to cooperate with a shrapnel and a reed to form the opening and closing of the push-button switch. In a short time, the contact shrapnel is prone to adhering dust, affecting full conduction and power-on. When the shrapnel is used for a long time, oxides will be generated due to surface accumulation, affecting conductive closure. When manually cleaning and replacing the shrapnel, the whole button needs to be disassembled, which is time-consuming and laborious. Therefore, there is no built-in switch structure that can be cleaned and processed without disassembly and can be synchronized with normal use operations. Summary of the Invention

[0007] The purpose of the present invention is to provide a push-button switch with water absorption at the button to solve the problem that when affected by external water sources, water is likely to enter the interior of the switch, resulting in the rust and failure of the switch as mentioned in the above background technology.

[0008] To achieve the above purpose, the present invention provides the following technical solution: A push-button switch with water absorption at the button, including a switch housing, a limiting mechanism, a waterproof mechanism, a detection mechanism, a cleaning mechanism, and an auxiliary mechanism. A fixed plate is fixedly installed on the inner bottom wall of the switch housing. A rotating rod is rotatably installed on the outer surface of the fixed plate. A fifth spring is fixedly installed at the top of the fixed plate. The free end of the fifth spring is fixedly installed with a limiting plate. Moving blocks are fixedly installed on both sides of the limiting plate. A moving plate is fixedly installed at the top of the limiting plate. The waterproof mechanism is arranged inside the switch housing. The waterproof mechanism includes a water-absorbing cotton and an air cylinder. The water-absorbing cotton is fixedly installed on the surface of the switch housing close to the moving plate. An annular groove is opened inside the switch housing;

[0009] The detection mechanism is arranged inside the switch housing. The detection mechanism includes a warning light, a first conductive shrapnel, and a second conductive shrapnel. The warning light is fixedly installed on the outer surface of the switch housing. The first conductive shrapnel is fixedly installed at the bottom of the limiting plate. The second conductive shrapnel is fixedly installed at the top of the fixed plate. A clamping plate is fixedly installed at the bottom of the limiting plate. A second sleeve is fixedly installed on the surface of the clamping plate. A second sliding plate is slidably installed inside the second sleeve;

[0010] The cleaning mechanism is arranged inside the switch housing. The cleaning mechanism includes a first mounting plate and a roller. The first mounting plate is fixedly installed on the inner bottom wall of the switch housing. Two through grooves are formed on the outer surface of the first mounting plate. Two connecting rods are slidably installed inside the through grooves. The roller is fixedly installed on the surface of the connecting rod close to the first conductive elastic sheet. Through holes are formed on the outer surface of the roller. An airbag is fixedly installed inside the roller. Dilute hydrochloric acid is filled inside the airbag. The auxiliary mechanism is arranged inside the switch housing. The auxiliary mechanism includes a second mounting plate, a blade, and a thorn needle. The second mounting plate is fixedly installed on the inner bottom wall of the switch housing. A door panel is arranged on the surface of the switch housing close to the annular groove. The door panel is installed on the switch housing through screws. A water outlet pipe is fixedly installed at the bottom end of the annular groove. An air cylinder is fixedly installed on the inner wall of the switch housing. A pressure rod is slidably installed at the top end of the air cylinder. The top end of the pressure rod is fixedly connected to a moving plate. A guide air pipe is fixedly installed between the top end of the air cylinder and the annular groove. A piston is arranged at the end of the water outlet pipe away from the switch housing. A second spring is fixedly installed inside the switch housing close to the piston. A sliding rod is fixedly installed between the free end of the second spring and the piston.

[0011] As a preferred technical solution of the present invention, a sealing ring is fixedly installed at the bottom end of the moving plate close to the switch housing.

[0012] As a preferred technical solution of the present invention, the cross-sections of the first conductive elastic sheet and the second conductive elastic sheet are arc-shaped. Anti-slip pads are fixedly installed on the surfaces of the first conductive elastic sheet and the second conductive elastic sheet away from each other. A third spring is fixedly installed between the second sliding plate and the second sleeve. A top rod is fixedly installed on the inner top wall of the second sleeve. A pressing block is fixedly installed at the top end of the second sliding plate. A limiting rod is fixedly installed on the surface of the moving plate away from the pressing block.

[0013] As a preferred technical solution of the present invention, the cross-section of the through groove is arc-shaped. A soft brush is fixedly installed on the outer surface of the roller.

[0014] As a preferred technical solution of the present invention, the blade is arranged on the surface of the second mounting plate close to the first mounting plate. A connecting rope is fixedly installed on the outer surface of the second mounting plate. A round plate is fixedly installed at the free end of the connecting rope. The thorn needle is inserted inside the round plate. A fourth spring is fixedly installed between the round plate and the second mounting plate. A pulling rope is arranged at the top end of the blade. The pulling rope slidably penetrates through the switch housing. A sliding groove is formed on the surface of the second mounting plate close to the blade. A sliding block is fixedly installed on the outer surface of the blade. The sliding block is slidably installed inside the sliding groove. A collection box is fixedly installed on the surface of the second mounting plate close to the blade.

[0015] As a preferred technical solution of the present invention, a support rod is fixedly installed on the inner bottom wall of the switch housing. The free end of the support rod is fixedly installed with a sliding sleeve. A circular tube is arranged inside the sliding sleeve. The thorn needle is inserted into the circular tube. A magnet is fixedly installed on the surface of the connecting rod close to the circular tube.

[0016] As a preferred technical solution of the present invention, a button rod is fixedly installed at the top end of the moving plate. A circular rod is inserted into the free end of the button rod. A button cap is fixedly installed at the free end of the circular rod. A rubber pad is fixedly installed on the outer surface of the button cap.

[0017] As a preferred technical solution of the present invention, two first sleeves are fixedly installed on the outer surface of the button rod. A first sliding plate is slidably installed inside the first sleeve. A first spring is fixed between the first sliding plate and the first sleeve. A plug rod is fixedly installed on the surface of the first sliding plate away from the first spring. The plug rod is inserted into the circular rod. A pull rod is fixedly installed on the surface of the first sliding plate away from the plug rod.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] By setting the water-absorbing cotton, through groove, air cylinder, and pressure rod, when the push-button switch is not pressed and used, the inclined moving plate can reverse the flow of water, facilitating the water-absorbing cotton to adsorb the water on the outer surface of the switch housing. When it is necessary to immediately press and conduct electricity for use, by pressing, the negative pressure generated inside the air cylinder enables the water-absorbing cotton to quickly absorb water. Before pressing and conducting, the water-absorbing cotton can quickly absorb water with the assistance of negative pressure suction, instantly adsorbing and removing the remaining water on the surface, and preventing water from entering the interior before continuing to press and conduct. At the same time, the water in the water-absorbing cotton is introduced into the through groove for collection, avoiding water from flowing into the interior of the switch housing. At the same time, by pulling the piston, the water in the annular groove can be quickly discharged.

[0020] By setting the warning light, ejector rod, pressing block, and limiting rod, when the push-button switch is in use, since the first conductive elastic sheet and the second conductive elastic sheet come into contact and conduct electricity, the push-button switch operates. It is easy for the contact part to deform. When a certain deformation or a minute deformation that is difficult to observe with the naked eye occurs, at this time, the first conductive elastic sheet and the second conductive elastic sheet reset. The deformed part will exert pressure on the limiting rod, causing the ejector rod to contact the pressing block, thereby making the warning light turn on, enabling the switch to be used. When the push-button switch is turned off, at this time, the warning light is still on. This can facilitate workers to determine the fault location before disassembling the push-button switch, promptly determine the repair plan and then carry out the repair, reducing the repair difficulty.

[0021] In the present invention, by providing a drum, an airbag, a fourth spring, a lancet, a blade, and a connecting rope, when the push button switch is in use, when the first conductive elastic sheet moves, the rotating drum can automatically clean the outer surface of the first conductive elastic sheet. Similarly, the drum that slides relative to the second conductive elastic sheet realizes follow-up brushing and cleaning. At this time, the first conductive elastic sheet and the second conductive elastic sheet can be wiped simultaneously, avoiding the accumulation of dust on the outer surface, which affects the conductive contact between the first conductive elastic sheet and the second conductive elastic sheet. Each press and release can achieve a cleaning and brushing operation. Over time, the surface remains smooth and conductive. If poor contact still occurs after a period of use, it may be that oxides have accumulated on the surface. At this time, the connecting rope can be cut by the blade. Then, under the elastic force of the fourth spring, the lancet is ejected and the airbag is punctured. At this time, the dilute hydrochloric acid or other cleaning liquid flowing out of the airbag can react with the oxides attached to the surfaces of the first conductive elastic sheet and the second conductive elastic sheet close to each other during subsequent cleaning. After several more brushings, the oxides on the surfaces of the first conductive elastic sheet and the second conductive elastic sheet can be removed, further maintaining the good contact and conductivity of the two contact elastic sheets. Thus, a cleaning and treatment structure that can be synchronized with normal use operations is realized, greatly extending the actual service life of the push button switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of the present invention;

[0023] Figure 2 is a schematic structural diagram of the interior of the switch housing of the present invention;

[0024] Figure 3 is a schematic structural diagram of the limiting plate of the present invention;

[0025] Figure 4 is a schematic structural diagram of the water-absorbing cotton of the present invention;

[0026] Figure 5 is a schematic structural diagram of the interior of the first sleeve of the present invention;

[0027] Figure 6 is a schematic structural diagram of the first conductive elastic sheet of the present invention;

[0028] Figure 7 of the present invention Figure 6 schematic diagram of the structure at position A;

[0029] Figure 8 is a schematic structural diagram of the interior of the drum of the present invention;

[0030] Figure 9 of the present invention Figure 8 schematic diagram of the structure at position B;

[0031] Figure 10 Schematic diagram of the internal structure of the second mounting plate of the present invention.

[0032] In the figure: 1, switch housing; 201, button cap; 202, round rod; 203, button rod; 204, insertion rod; 205, first slide plate; 206, first spring; 207, pull rod; 208, first sleeve; 3, limiting plate; 4, moving plate; 501, sealing ring; 502, annular groove; 503, water-absorbing cotton; 504, door panel; 505, piston; 506, slide rod; 507, second spring; 508, water outlet pipe; 509, pressing rod; 510, air cylinder; 511, air duct; 601, first conductive elastic sheet; 602, second conductive elastic sheet; 603, warning light; 604, second sleeve; 605, ejector rod; 606, third spring; 607, pressing block; 608, second slide plate; 609, clamping plate; 610, limiting rod; 701, first mounting plate; 702, through groove; 703, roller; 704, airbag; 705, connecting rod; 801, pull rope; 802, blade; 803, chute; 804, collection box; 805, second mounting plate; 806, round tube; 807, fourth spring; 808, thorn needle; 809, round plate; 810, connecting rope; 811, support rod; 812, sliding sleeve; 813, magnet; 9, rotating rod; 10, fifth spring; 11, fixing plate; 12, moving block. Specific embodiments

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0034] Please refer to Figure 1-10 , the present invention provides a technical solution for a push-button switch with water absorption at the button:

[0035] A push-button switch with water absorption by adsorption at the button, comprising a switch housing 1, a limiting mechanism, a waterproof mechanism, a detection mechanism, a cleaning mechanism, and an auxiliary mechanism. A fixed plate 11 is fixedly installed on the inner bottom wall of the switch housing 1. A rotating rod 9 is rotatably installed on the outer surface of the fixed plate 11. A fifth spring 10 is fixedly installed at the top of the fixed plate 11. The free end of the fifth spring 10 is fixedly installed with a limiting plate 3. Moving blocks 12 are fixedly installed on both sides of the limiting plate 3. A moving plate 4 is fixedly installed at the top of the limiting plate 3. Since the moving plate 4 has a certain thickness, it can ensure that the synchronous descent process of the moving plate 4 can drive sufficient negative pressure to be formed in the air cylinder 510. Thus, the sufficient negative pressure is transmitted to the annular groove 502, and an effective negative pressure suction force is formed at the bottom of the water-absorbing cotton 503. In this way, a rapid water absorption process can be realized before the moving plate 4 touches the bottom, avoiding the button switch driving water flow into the interior of the button switch and causing damage to components. The waterproof mechanism is arranged inside the switch housing 1. The waterproof mechanism includes a water-absorbing cotton 503 and an air cylinder 510. The water-absorbing cotton 503 is fixedly installed on the surface of the switch housing 1 close to the moving plate 4. An annular groove 502 is opened inside the switch housing 1. A water outlet pipe 508 is fixedly installed at the bottom end of the annular groove 502. The air cylinder 510 is fixedly installed on the inner wall of the switch housing 1, and air-permeable holes are opened at the bottom of the air cylinder 510 to facilitate the repeated pressurization use of the air cylinder 510. A pressure rod 509 is slidably installed at the top of the air cylinder 510. The free end of the pressure rod 509 is fixedly connected to the moving plate 4. The end of the pressure rod 509 placed inside the air guide pipe 511 is in a piston shape. In this way, when the pressure rod 509 moves relative to the air guide pipe 511, negative pressure will be formed inside. When the pressure rod 509 resets and rises, the originally adsorbed water has fallen and been collected into the annular groove 502 and entered the water outlet pipe 508. At this time, the discharged gas will leak through the gap. A air guide pipe 511 is fixedly installed between the top of the air cylinder 510 and the annular groove 502. A door plate 504 is arranged on the surface of the switch housing 1 close to the annular groove 502. The door plate 504 is installed on the switch housing 1 by screws. Through the door plate 504, it is convenient to repair the interior of the switch housing 1 close to the water outlet pipe 508. A piston 505 is arranged at the end of the water outlet pipe 508 far from the switch housing 1. A second spring 507 is fixedly installed inside the switch housing 1 close to the piston 505. A sliding rod 506 is fixedly installed between the free end of the second spring 507 and the piston 505. The piston 505 can be limited by the sliding rod 506. A sealing ring 501 is fixedly installed at the bottom end of the moving plate 4 close to the switch housing 1. The sealing performance of the switch housing 1 is increased through the sealing ring 501.

[0036] The detection mechanism is arranged inside the switch housing 1. The detection mechanism includes a warning light 603, a first conductive elastic sheet 601, and a second conductive elastic sheet 602. The warning light 603 is fixedly installed on the outer surface of the switch housing 1. The bottom end of the limiting plate 3 is fixedly installed with the first conductive elastic sheet 601. The top end of the fixing plate 11 is fixedly installed with the second conductive elastic sheet 602. The bottom end of the limiting plate 3 is fixedly installed with a clamping plate 609. The surface of the clamping plate 609 is fixedly installed with a second sleeve 604. A second sliding plate 608 is slidably installed inside the second sleeve 604. A third spring 606 is fixedly installed between the second sliding plate 608 and the second sleeve 604. A ejector rod 605 is fixedly installed on the inner top wall of the second sleeve 604. A pressing block 607 is fixedly installed at the top end of the second sliding plate 608. A limiting rod 610 is fixedly installed on the surface of the moving plate 4 away from the pressing block 607. The cross-sections of the first conductive elastic sheet 601 and the second conductive elastic sheet 602 are arc-shaped. The limiting rod 610 is very close to the first conductive elastic sheet 601 and the second conductive elastic sheet 602. In this way, even after relatively slight deformation, it can be detected, replacing direct visual inspection by the naked eye, and it is easier to troubleshoot the faulty location. Anti-slip pads are fixedly installed on the surfaces of the first conductive elastic sheet 601 and the second conductive elastic sheet 602 that are away from each other.

[0037] The cleaning mechanism is arranged inside the switch housing 1. The cleaning mechanism includes a first mounting plate 701 and a roller 703. The first mounting plate 701 is fixedly mounted on the inner bottom wall of the switch housing 1. Two through slots 702 are formed on the outer surface of the first mounting plate 701. Two connecting rods 705 are slidably mounted inside the through slots 702. The roller 703 is fixedly mounted on the surface of the connecting rod 705 close to the first conductive elastic piece 601. Through holes are formed on the outer surface of the roller 703. An airbag 704 is fixedly mounted inside the roller 703. Dilute hydrochloric acid is filled inside the airbag 704. The auxiliary mechanism is arranged inside the switch housing 1. The auxiliary mechanism includes a second mounting plate 805, a blade 802, and a thorn needle 808. The second mounting plate 805 is fixedly mounted on the inner bottom wall of the switch housing 1. The blade 802 is arranged on the surface of the second mounting plate 805 close to the first mounting plate 701. A connecting rope 810 is fixedly mounted on the outer surface of the second mounting plate 805. The free end of the connecting rope 810 is fixedly mounted with a circular plate 809. The thorn needle 808 is inserted into the circular plate 809. A fourth spring 807 is fixedly mounted between the circular plate 809 and the second mounting plate 805. The cross section of the through slot 702 is arc-shaped. A soft brush is fixedly mounted on the outer surface of the roller 703. A pull rope 801 is arranged at the top of the blade 802. The pull rope 801 slidably penetrates through the switch housing 1. A chute 803 is formed on the surface of the second mounting plate 805 close to the blade 802. A slider is fixedly mounted on the outer surface of the blade 802. The slider is slidably mounted inside the chute 803. A collection box 804 is fixedly mounted on the surface of the second mounting plate 805 close to the blade 802. The blade 802 can be recycled through the collection box 804, avoiding damage to the inside of the push button switch. A support rod 811 is fixedly mounted on the inner bottom wall of the switch housing 1. The free end of the support rod 811 is fixedly mounted with a sliding sleeve 812. A circular tube 806 is arranged inside the sliding sleeve 812. The thorn needle 808 is inserted into the circular tube 806. A magnet 813 is fixedly mounted on the surface of the connecting rod 705 close to the circular tube 806. The circular tube 806 is adsorbed and positioned by the magnet 813, so that the circular tube 806 can accurately position the thorn needle 808 and shoot the thorn needle 808 into the roller 703.

[0038] A button rod 203 is fixedly installed at the top end of the moving plate 4. A round rod 202 is inserted into the free end of the button rod 203. A button cap 201 is fixedly installed at the free end of the round rod 202. A rubber pad is fixedly installed on the outer surface of the button cap 201. By installing the button cap 201, the experience of the button switch can be improved. Two first sleeves 208 are fixedly installed on the outer surface of the button rod 203. A first sliding plate 205 is slidably installed inside the first sleeve 208. A first spring 206 is fixed between the first sliding plate 205 and the first sleeve 208. A plug rod 204 is fixedly installed on the surface of the first sliding plate 205 away from the first spring 206. The plug rod 204 is inserted into the inside of the round rod 202. A pull rod 207 is fixedly installed on the surface of the first sliding plate 205 away from the plug rod 204. Due to the elastic force of the first spring 206, the plug rod 204 is inserted into the inside of the round rod 202, thereby realizing the limit of the button cap 201 and facilitating the disassembly and replacement of the button cap 201 for use.

[0039] When the present invention is in use, its working principle is as follows:

[0040] When the button switch is in use, the water-absorbing cotton 503 can adsorb the water on the outer surface of the switch housing 1, and since the moving plate 4 is set to be slightly inclined towards the water-absorbing cotton 503, the water outside the switch housing 1 can be drained, so that the excess water can be introduced into the through groove 702 for collection, preventing the water from flowing into the inside of the switch housing 1 and damaging the internal electrical components. At the same time, the button cap 201 at one end of the button switch drives the moving plate 4 to move, the moving plate 4 drives the pressure rod 509 to move, and the pressure rod 509 drives the air pressure inside the air cylinder 510 to be compressed. One end of the air guide pipe 511 is connected to the inner top of the annular groove 502. When the pressure rod 509 descends, a negative pressure is formed at the top inside the air cylinder 510, just like pumping water with a syringe. Thus, with the help of the air guide pipe 511, a negative pressure is formed in the annular groove 502, and a breathable waterproof film is provided at one end of the air guide pipe 511 inside the annular groove 502 to prevent water from flowing back. In this way, the water falling on the water-absorbing cotton 503 can not only be actively adsorbed by the water-absorbing cotton 503 itself, but also due to the negative pressure at the bottom of the water-absorbing cotton 503 during each pressing process. Then when the button is pressed down, the water-absorbing cotton 503 quickly absorbs water by means of the negative pressure inside the air cylinder 510. In this way, the residual water on the surface of the moving plate 4 can be quickly dried at the moment of pressing the button, thereby reducing the situation of falling into the gap and entering the switch interior. By manually moving out the piston 505 and driving the piston 505 to move out from one end of the water outlet pipe 508, the water flow inside the annular groove 502 can be conveniently discharged through the water outlet pipe 508. When all the water is discharged, at this time, the second spring 507 drives the piston 505 to reset, realizing the closing of the water outlet pipe 508.

[0041] When the push-button switch is in use, by pressing the push-button switch, the first conductive elastic piece 601 and the second conductive elastic piece 602 come into contact, thereby starting the push-button switch. At this time, the first conductive elastic piece 601 and the second conductive elastic piece 602 will deform, causing the limiting rod 610 inside the second sleeve 604 to move under pressure, making the ejector rod 605 contact the pressing block 607, thereby making the warning light 603 light up. At this time, when the push-button switch is in use, when the push-button switch is turned off, the warning light 603 is still in the lit state. At this time, it is convenient for workers to know that the first conductive elastic piece 601 and the second conductive elastic piece 602 are deformed and cannot be restored, so that the workers can know where the damage is and it is convenient for maintenance.

[0042] When the push-button switch is in use, when the first conductive elastic piece 601 and the second conductive elastic piece 602 move, at this time, the outer surfaces of the first conductive elastic piece 601 and the second conductive elastic piece 602 can be automatically cleaned by the rotating roller 703. By setting the roller 703 to move inside the arc-shaped through groove 702, the cleaning can be more comprehensive, thereby preventing dust from accumulating on the outer surfaces of the first conductive elastic piece 601 and the second conductive elastic piece 602 and affecting the use of the push-button switch. At the same time, after long-term use, the first conductive elastic piece 601 and the second conductive elastic piece 602 will rust and get stuck. When it is difficult for the first conductive elastic piece 601 and the second conductive elastic piece 602 to achieve electrical connection, at this time, by cutting the pull rope 801, the blade 802 is affected by gravity and moves downward. The blade 802 cuts the connecting rope 810. At this time, under the elastic force of the fourth spring 807, the thorn needle 808 is ejected along the inside of the cylinder and pierces the airbag 704. At this time, the dilute hydrochloric acid or other cleaning liquid that can effectively remove metal hydroxides flowing out of the airbag 704 seeps out through the through holes on the surface of the roller 703. Due to the dilute hydrochloric acid or other cleaning agents that can effectively remove metal hydroxides, the cleaning effect of the roller 703 on the first conductive elastic piece 601 and the second conductive elastic piece 602 can be improved.

[0043] In the description of the present invention, it is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. A push-button switch with water adsorption at the button, comprising a switch housing (1), a limiting mechanism, a waterproof mechanism, a detection mechanism, a cleaning mechanism, and an auxiliary mechanism. It is characterized in that: A fixing plate (11) is fixedly installed on the inner bottom wall of the switch housing (1). A rotating rod (9) is rotatably installed on the outer surface of the fixing plate (11). A fifth spring (10) is fixedly installed at the top end of the fixing plate (11). The free end of the fifth spring (10) is fixedly installed with a limiting plate (3). Moving blocks (12) are fixedly installed on both sides of the limiting plate (3). A moving plate (4) is fixedly installed at the top end of the limiting plate (3). The waterproof mechanism is arranged inside the switch housing (1). The waterproof mechanism includes a water-absorbing cotton (503) and an air cylinder (510). The water-absorbing cotton (503) is fixedly installed on the surface of the switch housing (1) close to the moving plate (4). An annular groove (502) is formed inside the switch housing (1). The detection mechanism is arranged inside the switch housing (1). The detection mechanism includes a warning light (603), a first conductive elastic sheet (601), and a second conductive elastic sheet (602). The warning light (603) is fixedly installed on the outer surface of the switch housing (1). The first conductive elastic sheet (601) is fixedly installed at the bottom end of the limiting plate (3). The second conductive elastic sheet (602) is fixedly installed at the top end of the fixing plate (11). A clamping plate (609) is fixedly installed at the bottom end of the limiting plate (3). A second sleeve (604) is fixedly installed on the surface of the clamping plate (609). A second sliding plate (608) is slidably installed inside the second sleeve (604). The cleaning mechanism is arranged inside the switch housing (1). The cleaning mechanism includes a first mounting plate (701) and a roller (703). The first mounting plate (701) is fixedly installed on the inner bottom wall of the switch housing (1). Two through slots (702) are formed on the outer surface of the first mounting plate (701). Two connecting rods (705) are slidably installed inside the through slots (702). The roller (703) is fixedly installed on the surface of the connecting rod (705) close to the first conductive elastic sheet (601). Through holes are formed on the outer surface of the roller (703). An airbag (704) is fixedly installed inside the roller (703). Dilute hydrochloric acid is filled inside the airbag (704). The auxiliary mechanism is arranged inside the switch housing (1). The auxiliary mechanism includes a second mounting plate (805), a blade (802), and a thorn needle (808). The second mounting plate (805) is fixedly installed on the inner bottom wall of the switch housing (1). A door panel (504) is arranged on the surface of the switch housing (1) close to the annular groove (502). The door panel (504) is installed on the switch housing (1) through screws. A water outlet pipe (508) is fixedly installed at the bottom end of the annular groove (502). An air cylinder (510) is fixedly installed on the inner wall of the switch housing (1). A pressure rod (509) is slidably installed at the top end of the air cylinder (510). The top end of the pressure rod (509) is fixedly connected to the moving plate (4). A guide air pipe (511) is fixedly installed between the top end of the air cylinder (510) and the annular groove (502). A piston (505) is arranged at one end of the water outlet pipe (508) far from the switch housing (1). A second spring (507) is fixedly installed inside the switch housing (1) close to the piston (505). A sliding rod (506) is fixedly installed between the free end of the second spring (507) and the piston (505).

2. A push-button switch for adsorptive water removal at the button according to claim 1, characterized in that: A sealing ring (501) is fixedly installed at the bottom end of the moving plate (4) close to the switch housing (1).

3. A push-button switch for adsorptive water removal at the button according to claim 1, characterized in that: The cross-sections of the first conductive elastic sheet (601) and the second conductive elastic sheet (602) are arc-shaped. Anti-slip pads are fixedly installed on the surfaces of the first conductive elastic sheet (601) and the second conductive elastic sheet (602) away from each other. A third spring (606) is fixedly installed between the second sliding plate (608) and the second sleeve (604). A top rod (605) is fixedly installed on the inner top wall of the second sleeve (604). A pressing block (607) is fixedly installed at the top end of the second sliding plate (608). A limiting rod (610) is fixedly installed on the surface of the moving plate (4) away from the pressing block (607).

4. A push-button switch for adsorptive water removal at the button according to claim 1, characterized in that: The cross-section of the through slot (702) is arc-shaped. A soft brush is fixedly installed on the outer surface of the roller (703).

5. A push-button switch with water removal by adsorption at the button according to claim 1, characterized in that: The blade (802) is arranged on the surface of the second mounting plate (805) close to the first mounting plate (701). A connecting rope (810) is fixedly installed on the outer surface of the second mounting plate (805). The free end of the connecting rope (810) is fixedly installed with a circular plate (809). The thorn needle (808) is inserted into the circular plate (809). A fourth spring (807) is fixedly installed between the circular plate (809) and the second mounting plate (805). A pull rope (801) is arranged at the top of the blade (802). The pull rope (801) slides through the switch housing (1). A chute (803) is opened on the surface of the second mounting plate (805) close to the blade (802). A slider is fixedly installed on the outer surface of the blade (802). The slider is slidably installed in the chute (803). A collection box (804) is fixedly installed on the surface of the second mounting plate (805) close to the blade (802).

6. A push-button switch with water removal by adsorption at the button according to claim 5, characterized in that: A support rod (811) is fixedly installed on the inner bottom wall of the switch housing (1). The free end of the support rod (811) is fixedly installed with a sliding sleeve (812). A circular tube (806) is arranged inside the sliding sleeve (812). The thorn needle (808) is inserted into the circular tube (806). A magnet (813) is fixedly installed on the surface of the connecting rod (705) close to the circular tube (806).

7. A push-button switch with water removal by adsorption at the button according to claim 1, characterized in that: A button rod (203) is fixedly installed at the top of the moving plate (4). A round rod (202) is inserted into the free end of the button rod (203). A button cap (201) is fixedly installed at the free end of the round rod (202). A rubber pad is fixedly installed on the outer surface of the button cap (201).

8. A push-button switch with water removal by adsorption at the button according to claim 7, characterized in that: Two first sleeves (208) are fixedly installed on the outer surface of the button rod (203). A first sliding plate (205) is slidably installed inside the first sleeve (208). A first spring (206) is fixedly installed between the first sliding plate (205) and the first sleeve (208). A plug rod (204) is fixedly installed on the surface of the first sliding plate (205) away from the first spring (206). The plug rod (204) is inserted into the round rod (202). A pull rod (207) is fixedly installed on the surface of the first sliding plate (205) away from the plug rod (204).

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