A durable switch

Abstract

The present invention belongs to the field of switch technology, and in particular relates to a durable switch, which includes a switch housing, a switch inner housing, an adsorption plate, an intermediate housing, a hinged lug, a circuit board, a limit protrusion, a control module, a button battery, and a card board. In the present invention, when the wireless switch is placed on a table and is pressed by a heavy object, the switch housing will squeeze the second piston through a spring, so that the second piston moves downward relative to the second piston housing, which will squeeze the liquid in the second piston housing out of the liquid outlet and into the first piston housing, pushing the first piston housing to move upward; and as the liquid in the second piston housing gradually flows into the first piston housing, the switch housing moves inward by a certain amplitude relative to the intermediate housing; after the user discovers it, after resetting the switch housing through the pressure rod, the degree of weakening of the spring elastic force is relatively small, and the switch can continue to be used. The longer the wireless switch is pressurized, the more obvious the effect of protecting the spring elastic force.

Description

Technical Field

[0001] The invention belongs to the technical field of switches, and in particular relates to a durable switch. Background Art

[0002] Now that society has entered the intelligent era, people can remotely control their home's lights, appliances, and curtains with just a smartphone. This is the wireless smart home of light. The wireless smart home's success is, of course, inseparable from the unsung heroes behind the scenes—the wireless switch. Its powerful support makes wireless smart homes quick to install, easy to operate, and capable of remote control. The biggest difference between wireless smart switches and traditional switches is that they are removable and require no wiring. Their portability provides users with a more convenient and comfortable lighting control solution. Their wiring-free nature reduces the use of electrical wires and PVC pipes during installation, thereby reducing the demand for metal raw materials such as copper and aluminum, and reducing carbon emissions during the production process.

[0003] The wireless switch can be attached to any suitable location on the wall, or placed on a table or bedside, as long as it is convenient to use. For example, patents No. 2019224011152 and No. 2019224010766 disclose a wireless switch, which discloses a button battery installation slot and the structure of the wireless switch; however, the following problems arise due to the convenience of placement:

[0004] The wireless switch itself is very thin, the swing amplitude of the pressure plate is small, and the reset spring inside is weak. When the wireless switch is placed on a table and pressed by a heavy object for a period of time, the reset spring force may weaken, causing the switch to be unable to reset, resulting in switch failure or poor pressure feel.

[0005] Most wireless switches currently use button batteries for power supply, which can make the switch very thin. When the power is out, the battery may not be found in time, making the wireless switch unusable. Of course, there are also passive switches, but passive switches are thicker, affecting the appearance.

[0006] Because wireless switches are flexibly arranged, they often fall to the ground and are accidentally stepped on by people, causing damage.

[0007] The present invention designs a durable switch to solve the above problems. Summary of the Invention

[0008] In order to achieve the above object, the present invention adopts the following technical solutions:

[0009] A durable switch comprises a switch housing, a switch inner housing, an adsorption plate, an intermediate housing, hinged lugs, a circuit board, a limit protrusion, a control module, a button battery, and a card board. An adjustment structure and a power storage mechanism are installed between the switch housing and the switch inner housing.

[0010] The adjusting mechanism includes a spring, a second piston housing, a one-way valve, a fixed support, a first rack, a hinge pin, a first piston, a first piston housing, a connecting pipe, and a second piston, wherein the first piston housing and the second piston housing are mounted at both ends of the switch inner housing, the first piston is slidably mounted in the first piston housing, and the second piston is slidably mounted in the second piston housing; the first piston housing and the second piston housing are connected by a connecting pipe; a liquid outlet and a liquid inlet are opened on the wall surface of the lower end of the second piston housing, the inner diameter of the liquid outlet is half the inner diameter of the liquid inlet; the liquid outlet and the liquid inlet are connected to the connecting pipe; a one-way valve is installed on the liquid outlet end located at the outer end of the second piston housing and the liquid inlet end is located at the inner end of the second piston; a spring is mounted on the upper end of the second piston, and the upper end of the spring contacts and cooperates with the switch housing; the first rack is slidably mounted on the inner bottom surface of the switch inner housing through a fixed support, and a hinge pin is fixedly mounted on the upper end of the first rack; the first rack and the first piston are connected by a rack and gear transmission; the downward movement of the first rack drives the first piston to move upward through the transmission.

[0011] The hinged support ear on the switch housing is detachably connected to the hinge pin.

[0012] The power storage mechanism includes a generator and a battery. The generator and the battery are installed on the inner bottom surface of the switch inner shell. A swing lever is installed on the switch inner shell. Manually moving the swing lever can control the generator to work and generate electricity.

[0013] As a preferred solution, there are two adjusting mechanisms, which are symmetrically installed between the switch inner shell and the switch outer shell.

[0014] As a preferred solution, a connecting rod is fixedly installed on the upper end of the first piston, one end of the connecting rod has teeth, the second gear is rotatably installed on the fixed support, the second gear is engaged with the first rack, and the teeth on the connecting rod are engaged with the second gear.

[0015] As a preferred solution, the one-way valve includes an elastic rod and a valve cover, wherein the liquid outlet hole located at the outer end of the second piston shell and the liquid inlet hole located at the inner end of the second piston both have a protrusion, and the valve cover is installed on the end surface of the protrusion to cover the corresponding liquid hole, and three elastic rods are evenly installed circumferentially on the end surface of the protrusion, and the three elastic rods are fixedly connected to the valve cover at one end away from the protrusion.

[0016] As a preferred solution, a square through hole is opened on the switch housing, and a pressure rod is fixedly installed on the upper end of the first piston, and the pressure rod is slidably engaged with the square through hole.

[0017] As a preferred solution, the cross section of the square through hole is larger than the cross section of the pressure rod, and a sealing gasket is installed between the square through hole and the pressure rod.

[0018] As a preferred solution, the hinged lug on the switch housing is an open lug, the hinged lug is elastic, and the hinged lug is fixedly mounted on the switch housing via a metal plate.

[0019] As a preferred solution, a sealing ring is installed between the first piston and the first piston housing, and a sealing ring is installed between the second piston and the second piston housing; a protective shell is installed on the outside of the liquid inlet and liquid outlet holes opened on the second piston housing, and the liquid inlet and liquid outlet holes are connected to the connecting pipe through the protective shell.

[0020] As a preferred solution, a first gear is fixedly mounted on the power input shaft of the generator, and an arc-shaped rack is swingably mounted in the inner housing of the switch through two guide supports, and the arc-shaped rack is engaged with the first gear; a fixed pin is fixedly mounted in the inner housing of the switch, and the swing center of the arc-shaped rack is located on the axis of the fixed pin, one end of the connecting rocker is rotatably mounted on the fixed pin, and the other end of the connecting rocker is fixedly connected to the arc-shaped rack; a swinging lever is rotatably mounted on the fixed pin and the swinging lever is fixedly connected to the connecting rocker.

[0021] Compared with the existing technology, the advantages of the present invention are:

[0022] 1. During normal use, when the control switch housing swings about the axis of the hinge lug and the hinge pin, the swing of the switch housing drives the first piston upward via the first rack, the second gear, and the connecting rod. At the same time, the switch housing compresses the second piston via the spring, causing the liquid in the second piston housing to be discharged from the liquid outlet and into the first piston housing, pushing the first piston housing upward. In the present invention, due to the relatively small inner diameter of the liquid outlet, the amount of liquid flowing from the second piston housing into the first piston housing with each relative swing of the switch housing is relatively small. After repeated use, the pressure sensitivity of the switch housing decreases and the pressing effect is poor. At this time, the downward movement of the second piston relative to the second piston housing is sufficiently large that continued use may affect the tactile feel of the switch. When this occurs, the pressure rod is manually pressed downward using an auxiliary tool. This not only causes the switch housing to move upward relative to the intermediate housing, but also allows the liquid in the first piston housing to flow into the second piston housing through the connecting pipe and the liquid inlet. The second piston moves upward relative to the intermediate housing. The upward movement of the second piston drives the switch housing upward via the spring, causing the switch housing to recover. Due to the relatively large inner diameter of the liquid inlet, the switch housing can recover quickly.

[0023] 2. In the present invention, when the wireless switch is placed on a table and subjected to pressure from a heavy object, the switch housing will compress the second piston through the spring, causing the second piston to move downward relative to the second piston housing. The downward movement of the second piston relative to the second piston housing will squeeze the liquid in the second piston housing out of the liquid outlet and into the connecting tube. The liquid in the connecting tube enters the first piston housing, pushing the first piston housing upward. As the liquid in the second piston housing gradually flows into the first piston housing, the switch housing moves inward relative to the intermediate housing by a certain amount. However, during this process, the inward movement of the second piston relative to the second piston housing partially compensates for the compression of the spring. After the user discovers this, the switch housing is reset by the pressure rod. The degree of weakening of the spring force is relatively small, and the switch can continue to be used. The longer the wireless switch is under pressure, the more obvious the effect of protecting the spring force is.

[0024] 3. When the button battery of the wireless switch is dead and cannot be replaced in time, the switch housing can be removed and the swing lever can be manually moved. The swing of the swing lever drives the swing of the connecting swing lever, which drives the swing of the arc-shaped rack, which drives the first gear to rotate, thereby driving the generator to generate electricity, storing electricity in the battery, ensuring that the wireless switch can continue to be used until the button battery is replaced. The thickness of the power storage module in the present invention is relatively thin. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall appearance of the components.

[0026] Figure 2 This is the second schematic diagram of the overall component appearance.

[0027] Figure 3 It is a schematic diagram of the coordination between the switch outer shell and the switch inner shell.

[0028] Figure 4 This is a schematic diagram of the circuit board installation.

[0029] Figure 5 It is a schematic diagram of the switch housing structure.

[0030] Figure 6 This is a schematic diagram of the hinged support ear installation.

[0031] Figure 7 This is a schematic diagram of the installation of the limit protrusion.

[0032] Figure 8 This is a diagram of button battery installation.

[0033] Figure 9 It is a schematic diagram of the internal structure distribution of the shell.

[0034] Figure 10 It is a schematic diagram of the distribution of regulating mechanisms and power storage mechanisms.

[0035] Figure 11 It is a structural diagram of the power storage mechanism.

[0036] Figure 12 This is a schematic diagram of the hinge pin installation.

[0037] Figure 13 This is a schematic diagram of the one-way valve installation.

[0038] Figure 14 This is a schematic diagram of the liquid outlet distribution.

[0039] Figure 15 It is a schematic diagram of the liquid inlet hole distribution.

[0040] Reference numerals in the figure: 1. switch housing; 2. switch inner housing; 3. adsorption plate; 4. intermediate housing; 5. square through hole; 6. hinged lug; 7. sealing gasket; 8. circuit board; 9. limit projection; 10. metal plate; 12. control module; 13. button battery; 14. card plate; 15. adjustment mechanism; 16. power storage mechanism; 17. arc-shaped rack; 18. battery; 19. generator; 20. first gear; 21. guide support; 22. connecting rocker arm; 23. Fixed pin; 24. Swing lever; 25. Fixed support; 26. First rack; 27. Articulated pin; 28. Second gear; 29. Connecting rod; 30. Press rod; 31. First piston; 32. First piston housing; 33. Connecting pipe; 34. Spring; 35. Second piston housing; 36. One-way valve; 37. Protective shell; 38. Liquid outlet; 39. Liquid inlet; 40. Second piston; 41. Sealing ring; 42. Elastic rod; 43. Valve cover. DETAILED DESCRIPTION

[0041] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following embodiments or drawings are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0042] Unless otherwise specified, in the present invention, if there are terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicating orientation or positional relationships, they are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific length, orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the orientation or positional relationships in the present invention are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, they can understand the specific meanings of the above terms in conjunction with the drawings and according to specific circumstances.

[0043] Unless otherwise specified or limited, the terms "disposed," "connected," and "connected" in this disclosure should be interpreted broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediary, or internal connections between two components. Those skilled in the art will understand the specific meanings of these terms in this disclosure based on the specific circumstances.

[0044] like Figure 1 、 2 , 3, 7, it includes a switch housing 1, a switch inner housing 2, an adsorption plate 3, an intermediate housing 4, a hinged lug 6, a circuit board 8, a limiting protrusion 9, a control module 12, a button battery 13, and a card board 14, as shown Figure 8 、 9 As shown in FIG. 10 , an adjustment structure and a power storage mechanism 16 are installed between the switch outer shell 1 and the switch inner shell 2 .

[0045] The installation positions and mutual coordination relationships of the switch housing 1, switch inner housing 2, adsorption plate 3, intermediate housing 4, hinged lug 6, circuit board 8, limiting protrusion 9, control module 12, button battery 13, and card board 14 in the present invention are all the same as the existing structures of existing products.

[0046] The switch housing 1, the switch inner housing 2, and the intermediate housing 4 constitute the housing of the wireless switch; the adsorption plate 3 is used to adsorb the switch to the location where it needs to be installed. The adsorption plate 3 can be a magnetic plate or a rubber plate. The hinged lug 6 in the present invention adopts a mature structure of the existing technology, and a notch is formed on the hinged lug 6 for inserting the hinge pin 27; the limiting protrusion 9 is used to limit the swing angle of the switch housing 1 relative to the switch inner housing 2 and the intermediate housing 4, preventing the switch housing 1 from being disengaged from the switch inner housing 2 and the intermediate housing 4; the circuit board 8 and the control module 12 constitute the electronic control element of the wireless switch; the button battery 13 provides power, and the card plate 14 is used to limit the button battery 13. When replacing the button battery 13, the card plate 14 is pushed to release the card plate 14 from limiting the button battery 13, and the old button battery 13 is removed and replaced with a new one.

[0047] like Figure 10 As shown, the adjustment mechanism 15 includes a spring 34, a second piston housing 35, a one-way valve 36, a fixed support 25, a first rack 26, a hinge pin 27, a first piston 31, a first piston housing 32, a connecting pipe 33, and a second piston 40, wherein the first piston housing 32 and the second piston housing 35 are installed at both ends of the switch inner housing 2, as shown in FIG. Figure 12 As shown, the first piston 31 is slidably mounted in the first piston housing 32. Figure 13As shown, the second piston 40 is slidably mounted in the second piston housing 35; the first piston housing 32 and the second piston housing 35 are connected by a connecting pipe 33; Figure 13 、 14 As shown in Figure 15, a liquid outlet hole 38 and a liquid inlet hole 39 are formed on the wall surface of the lower end of the second piston housing 35, and the inner diameter of the liquid outlet hole 38 is half the inner diameter of the liquid inlet hole 39; the liquid outlet hole 38 and the liquid inlet hole 39 are communicated with the connecting pipe 33; the liquid outlet hole 38 located at the outer end of the second piston housing 35 and the liquid inlet hole 39 located at the inner end of the second piston 40 are both equipped with a one-way valve 36; a spring 34 is installed at the upper end of the second piston 40, and the upper end of the spring 34 is in contact with the switch housing 1; the first rack 26 is slidably mounted on the inner bottom surface of the switch inner housing 2 through a fixed support 25, and the upper end of the first rack 26 has a hinge pin; the first rack 26 and the first piston 31 are connected by a rack and gear transmission; the first rack 26 moves downward and drives the first piston 31 to move upward through the transmission.

[0048] like Figure 3 、 4 As shown, the hinged lug 6 on the switch housing 1 is detachably connected to the hinge pin 27 .

[0049] like Figure 11 As shown, the power storage mechanism 16 includes a generator 19 and a battery 18. The generator 19 and the battery 18 are installed on the inner bottom surface of the switch inner shell 2. A swing lever 24 is installed on the switch inner shell 2. Manually turning the swing lever 24 can control the generator 19 to work and generate electricity.

[0050] like Figure 10 As shown, there are two adjustment mechanisms 15 , which are symmetrically installed between the switch inner shell 2 and the switch outer shell 1 .

[0051] like Figure 10 、 12 As shown, a connecting rod 29 is fixedly mounted on the upper end of the first piston 31 , one end of the connecting rod 29 has teeth, and the second gear 28 is rotatably mounted on the fixed support 25 , the second gear 28 is engaged with the first rack 26 , and the teeth on the connecting rod 29 are engaged with the second gear 28 .

[0052] like Figure 14 、 15 As shown, the one-way valve 36 includes an elastic rod 42 and a valve cover 43, wherein the liquid outlet 38 is located at one end outside the second piston housing 35 and the liquid inlet 39 is located at one end inside the second piston 40, both of which have a protrusion. The valve cover 43 is installed on the end surface of the protrusion to cover the corresponding liquid hole. Three elastic rods 42 are evenly installed circumferentially on the end surface of the protrusion, and the three elastic rods 42 are fixedly connected to the valve cover 43 at one end away from the protrusion.

[0053] like Figure 4 As shown, a square through hole 5 is opened on the switch housing 1 , and a pressure rod 30 is fixedly mounted on the upper end of the first piston 31 , and the pressure rod 30 is slidably engaged with the square through hole 5 .

[0054] The cross section of the square through hole 5 is larger than that of the pressure rod 30, and a sealing gasket 7 is installed between the square through hole 5 and the pressure rod 30. The function of the sealing gasket 7 is to prevent external liquid from flowing into the housing through the square hole, causing the burning of internal electronic components.

[0055] like Figure 5 、 6 As shown, the hinged lug 6 on the switch housing 1 is an open lug, and the hinged lug 6 is elastic and fixed to the switch housing 1 via a metal plate 10. The metal plate 10 serves to improve the mounting strength of the hinged lug 6.

[0056] like Figure 12 、 13 As shown, a sealing ring 41 is installed between the first piston 31 and the first piston housing 32, and a sealing ring 41 is installed between the second piston 40 and the second piston housing 35; a protective shell 37 is installed on the outside of the liquid inlet hole 39 and the liquid outlet hole 38 opened on the second piston housing 35, and the liquid inlet hole 39 and the liquid outlet hole 38 are connected to the connecting pipe 33 through the protective shell 37.

[0057] like Figure 11 As shown, a first gear 20 is fixedly mounted on the power input shaft of the generator 19, and an arcuate rack 17 is swingably mounted in the switch inner housing 2 via two guide supports 21, and the arcuate rack 17 is engaged with the first gear 20; a fixed pin 23 is fixedly mounted in the switch inner housing 2, and the swing center of the arcuate rack 17 is located on the axis of the fixed pin 23; one end of the connecting rocker 22 is rotatably mounted on the fixed pin 23, and the other end of the connecting rocker 22 is fixedly connected to the arcuate rack 17; a swinging lever 24 is rotatably mounted on the fixed pin 23 and the swinging lever 24 is fixedly connected to the connecting rocker 22.

[0058] When the button battery 13 of the wireless switch is out of power and cannot be replaced in time, the switch housing 1 can be removed, and then the swing lever 24 can be manually toggled. The swing of the swing lever 24 drives the connecting swing lever 22 to swing, and the swing of the connecting swing lever 22 drives the arc-shaped rack 17 to swing. The swing of the arc-shaped rack 17 drives the first gear 20 to rotate, and then drives the generator 19 to generate electricity, and stores electricity in the battery 18, ensuring that the wireless switch can continue to be used before the button battery 13 is replaced.

[0059] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent change made to the above embodiment based on the technical essence of the present invention shall fall within the scope of protection of the present invention.

[0060] Implementation method: Figure 4 As shown, the initial state of the wireless switch is set, the first piston 31 is located in the middle of the cavity of the first piston housing 32, and the second piston 40 is located at the end of the cavity of the second piston housing 35 away from the liquid outlet. When the wireless switch designed by the present invention is used, in normal use, when the switch housing 1 is controlled to swing around the axis of the hinged lug 6 and the hinge pin 27, the switch housing 1 will drive the first rack 26 to move downward under the guidance of the fixed support 25 through the hinged lug 6 and the hinged pin 27, and the movement of the first rack 26 will drive the second gear 28 to rotate, and the rotation of the second gear 28 will drive the connecting rod 29 to move upward, and the connecting rod 29 will drive the first piston 31 to move upward; at the same time, when the switch housing 1 swings, the switch housing 1 will squeeze the second piston 40 through the spring 34, so that the second piston 40 moves downward relative to the second piston housing 35. The downward movement of the second piston 40 relative to the second piston housing 35 will squeeze the liquid in the second piston housing 35 out of the liquid outlet 38 and into the connecting pipe 33. The liquid in the connecting pipe 33 enters the first piston housing 32, pushing the first piston housing 32 to move upward; that is, the upward movement of the first piston 31 is driven by two different forces; in the present invention, because the inner diameter of the liquid outlet 38 is relatively small, the switch housing 1 swings relative to the second piston housing 35 once. The amount of liquid flowing into the first piston housing 32 is relatively small; after repeated use, the pressure sense of the switch housing 1 will decrease and the pressing effect will be poor. At this time, the downward movement of the second piston 40 relative to the second piston housing 35 is large enough. When continued use may affect the switch, the pressure rod 30 is manually pressed downward with an auxiliary tool, so that the pressure rod 30 drives the first piston 31 to move downward relative to the first piston housing 32. The downward movement of the first piston 31 will, on the one hand, drive the switch housing 1 to move upward relative to the intermediate housing 4 through the transmission of the connecting rod 29, the second gear 28 and the first rack 26 to restore. On the other hand, the downward movement of the first piston 31 will squeeze the liquid in the first piston housing 32, so that the liquid in the first piston housing 32 flows into the second piston housing 35 through the connecting pipe 33 and the liquid inlet hole 39, and the second piston 40 moves upward relatively. The upward movement of the second piston 40 drives the switch housing 1 to move upward through the spring 34, so that the switch housing 1 is restored, that is, the first piston 31 and the second piston 40 are restored to their initial state; because the inner diameter of the liquid inlet hole 39 is relatively large, the switch housing 1 can be quickly restored.

[0061] When the wireless switch is placed on a table and is pressurized by a heavy object, the switch housing 1 will squeeze the second piston 40 through the spring 34, causing the second piston 40 to move downward relative to the second piston housing 35. The downward movement of the second piston 40 relative to the second piston housing 35 will squeeze the liquid in the second piston housing 35 out of the liquid outlet 38 and into the connecting pipe 33. The liquid entering the connecting pipe 33 enters the first piston housing 32, pushing the first piston housing 32 to move upward; and as the liquid in the second piston housing 35 gradually flows into the first piston housing 32, the switch housing 1 moves inward by a certain amplitude relative to the intermediate housing 4; however, in this process, the inward movement of the second piston 40 relative to the second piston housing 35 compensates for part of the compression of the spring 34; after the user discovers it, after resetting the switch housing 1 through the pressure rod 30, the weakening degree of the elastic force of the spring 34 is relatively small, and it can continue to be used.

[0062] When the button battery 13 of the wireless switch is out of power and cannot be replaced in time, the switch housing 1 can be removed, and then the swing lever 24 can be manually toggled. The swing of the swing lever 24 drives the connecting swing lever 22 to swing, and the swing of the connecting swing lever 22 drives the arc-shaped rack 17 to swing. The swing of the arc-shaped rack 17 drives the first gear 20 to rotate, and then drives the generator 19 to generate electricity, and stores electricity in the battery 18, ensuring that the wireless switch can continue to be used before the button battery 13 is replaced.

Claims

1. A durable switch, comprising a switch housing, a switch inner housing, an adsorption plate, an intermediate housing, hinged lugs, a circuit board, a limit protrusion, a control module, a button battery, and a card board, characterized in that: An adjustment structure and a power storage mechanism are installed between the switch outer shell and the switch inner shell; The adjusting mechanism includes a spring, a second piston housing, a one-way valve, a fixed support, a first rack, a hinge pin, a first piston, a first piston housing, a connecting pipe, and a second piston, wherein the first piston housing and the second piston housing are installed at both ends of the switch inner housing, the first piston is slidably installed in the first piston housing, and the second piston is slidably installed in the second piston housing; the first piston housing and the second piston housing are connected by a connecting pipe; a liquid outlet and a liquid inlet are opened on the wall surface of the lower end of the second piston housing, the inner diameter of the liquid outlet is half times the inner diameter of the liquid inlet; the liquid outlet and the liquid inlet are connected to the connecting pipe; the liquid outlet is located at one end of the outer side of the second piston housing and the liquid inlet is located at one end of the inner side of the second piston. A spring is installed on the upper end of the second piston, and the upper end of the spring contacts and cooperates with the switch housing; the first rack is slidably installed on the inner bottom surface of the switch inner housing through a fixed support, and the upper end of the first rack is fixedly installed with a hinge pin; the first rack and the first piston are connected by a rack and gear transmission; the downward movement of the first rack drives the first piston to move upward through the transmission; The hinged lug on the switch housing is detachably connected to the hinge pin; The power storage mechanism includes a generator and a battery. The generator and the battery are installed on the inner bottom surface of the switch inner shell. A swing lever is installed on the switch inner shell. Manually toggling the swing lever can control the generator to work and generate electricity. There are two adjustment mechanisms, which are symmetrically installed between the switch inner shell and the switch outer shell; The one-way valve includes an elastic rod and a valve cover, wherein the liquid outlet is located at one end outside the second piston shell and the liquid inlet is located at one end inside the second piston, both of which have protrusions. The valve cover is installed on the end surface of the protrusion to cover the corresponding liquid holes. Three elastic rods are evenly installed circumferentially on the end surface of the protrusion, and the three elastic rods are fixedly connected to the valve cover at one end away from the protrusion.

2. The durable switch according to claim 1, characterized in that: A connecting rod is fixedly mounted on the upper end of the first piston, one end of the connecting rod has teeth, the second gear is rotatably mounted on the fixed support, the second gear is meshed with the first rack, and the teeth on the connecting rod are meshed with the second gear.

3. The durable switch according to claim 1, characterized in that: A square through hole is provided on the switch housing, and a pressure rod is fixedly installed on the upper end of the first piston, and the pressure rod is slidably matched with the square through hole.

4. The durable switch according to claim 3, characterized in that: The cross section of the square through hole is larger than the cross section of the pressure rod, and a sealing gasket is installed between the square through hole and the pressure rod.

5. The durable switch according to claim 1, characterized in that: The hinged lug on the switch housing is an open lug, the hinged lug is elastic, and the hinged lug is fixedly mounted on the switch housing through a metal plate.

6. The durable switch according to claim 1, characterized in that: A sealing ring is installed between the first piston and the first piston housing, and a sealing ring is installed between the second piston and the second piston housing; a protective shell is installed outside the liquid inlet and liquid outlet holes opened on the second piston housing, and the liquid inlet and liquid outlet holes are connected to the connecting pipe through the protective shell.

7. The durable switch according to claim 1, characterized in that: A first gear is fixedly mounted on the power input shaft of the generator, and an arc-shaped rack is swingably mounted in the switch inner housing through two guide supports, and the arc-shaped rack is engaged with the first gear; a fixed pin is fixedly mounted in the switch inner housing, and the swing center of the arc-shaped rack is located on the axis of the fixed pin, one end of the connecting rocker is rotatably mounted on the fixed pin, and the other end of the connecting rocker is fixedly connected to the arc-shaped rack; a swinging lever is rotatably mounted on the fixed pin, and the swinging lever is fixedly connected to the connecting rocker.

Images