A water leakage prevention power and water cut-off device

Abstract

The utility model belongs to the technical field of household appliances, concretely relates to a water leakage prevention power-off and water stop device, including the waterway passageway of setting in the pipeline, the pipeline still is equipped with control passageway, the inside of control passageway is equipped with the sealing element of being able to slide;Sealing element connects the electromagnetic valve body of driving its movement, and the electromagnetic valve body includes valve body, and the inside of valve body is equipped with electromagnetic device, and the inside of valve body still is equipped with the transmission rod of being used with electromagnetic device, and transmission rod connects sealing element, and the spring of making transmission rod reset is equipped between electromagnetic device and transmission rod.

Description

Technical Field

[0001] This utility model belongs to the field of household appliance technology, and in particular relates to a water-stopping device that prevents water leakage. Background Technology

[0002] Most gas water heaters currently have antifreeze functions, which prevent the water tank from freezing when power, gas, and water are running. However, as we all know, users often turn off the power when leaving home. When the power is off, the antifreeze function may fail to activate, leading to a large amount of water leaking out after the water tank freezes and breaks. A check valve alone cannot completely prevent freezing; a power outage can easily cause the water tank to crack and leak, resulting in flooding and damage to the house. Therefore, a device that can shut off the water supply in the event of a power outage is needed. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a device that can automatically stop water supply in the event of a power outage, so as to avoid a large amount of water leakage caused by pipes freezing and cracking.

[0004] To solve the above-mentioned technical problems, this utility model provides a water-stop device for preventing water leakage, including a pipeline with a water passage for water flow. The pipeline also has a control channel communicating with the water passage. The inner side of the control channel has a sliding seal that can cut off the water flow. The seal is connected to an electromagnetic valve body that drives its movement. The electromagnetic valve body includes a valve body with an electromagnetic device inside. The valve body also has a transmission rod that works with the electromagnetic device. The transmission rod is connected to the seal. A spring is provided between the electromagnetic device and the transmission rod to reset the transmission rod. When the transmission rod is in the reset state, the seal can prevent the water flow inside the water passage.

[0005] Furthermore, the height of the seal is greater than the diameter of the water channel, and when the seal is located inside the water channel, it can prevent the water flow inside the water channel.

[0006] Furthermore, a water flow baffle is provided on the inner side of the water flow channel. The water flow baffle is located on the lower side of the control channel. When the sealing element is in the lower position, it can contact the water flow baffle. The water flow baffle divides the water flow channel into left and right sides.

[0007] Furthermore, the height of the water flow baffle is greater than the diameter of the water channel and extends to the inside of the control channel.

[0008] Furthermore, the seal includes a connecting block for fixing, the connecting block being connected to the transmission rod, and the periphery of the connecting block being covered with a rubber layer for sealing.

[0009] Furthermore, a stepper motor is provided on the inner side of the valve body. The stepper motor can change the position of the transmission rod. The transmission rod drives the sealing element to move. The sealing element and the water flow baffle form an adjustable gate. Changing the distance between the sealing element and the water flow baffle changes the flow area of ​​the water flow, thereby realizing the function of adjusting the hot water ratio.

[0010] Furthermore, the transmission rod is equipped with a rack, and the output shaft of the stepper motor is equipped with a gear. The gear meshes with the rack to enable the stepper motor to change the position of the transmission rod.

[0011] Furthermore, the valve body is provided with a through hole through which the transmission rod passes, and the transmission rod is axially movable relative to the through hole.

[0012] This utility model, through the above structure, incorporates an electromagnetic device for shutting off water flow in the water passage. In the event of a power outage, the spring of the electromagnetic device pushes the transmission rod to cut off the water passage with the seal, preventing water flow. This achieves automatic closure of the water passage after a power outage in a gas water heater, preventing damage to the house due to excessive water leakage after the water tank freezes and cracks. At the same time, the stepper motor inside the electromagnetic device can control the water flow rate, thus controlling the hot water ratio and adjusting the water temperature. Attached Figure Description

[0013] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a structural schematic diagram of the present invention from the main view direction;

[0016] Figure 3 This is a schematic diagram of the internal structure of the solenoid valve body in this utility model;

[0017] In the diagram: 1-Water channel, 2-Pipe, 3-Seal, 201-Water flow baffle, 202-Control channel, 301-Connecting block, 501-Valve body, 502-Transmission rod, 503-Spring, 504-Electromagnetic device, 505-Stepper motor, 506-Rack, 507-Gear. Detailed Implementation

[0018] See attached document Figure 1The present invention provides a water-stopping device for preventing water leakage, comprising a pipe 2, a water passage 1 for water flow in the pipe 2, and a control channel 202 communicating with the water passage 1. The control channel 202 communicates with the outside of the water passage 1 and the pipe 2. A sealing element 3 that can slide relative to the inner side of the control channel 202 is provided. By limiting the height of the sealing element 3 to be greater than the diameter of the water passage 1, the sealing element 3 can prevent the water flow inside the water passage 1 when it is located inside the water passage 1, thereby achieving the function of cutting off water flow.

[0019] Seal 3 is connected to the solenoid valve body 5 that drives its movement, see [link to document]. Figure 3 The solenoid valve body 5 includes a valve body 501. An electromagnetic device 504 is provided on the inner side of the valve body 501. A transmission rod 502, which is used in conjunction with the electromagnetic device 504, is also provided on the inner side of the valve body 501. The transmission rod 502 is connected to the sealing element 3. When the electromagnetic device 504 is energized, it generates electromagnetic force and can control the movement of the transmission rod 502. A spring 503 is provided between the electromagnetic device 504 and the transmission rod 502 to reset the transmission rod 502. When the transmission rod 502 is in the reset state, it can prevent the water flow inside the water passage 1 from flowing through the sealing element 3.

[0020] With the above structure, under normal operating conditions, the electromagnetic device 504 is powered on, causing the transmission rod 502 to be positioned away from the water channel 1. Specifically, the transmission rod 502 moves the sealing element 3 closer to the control channel 202, and the spring 503 is compressed. At this time, the water flow inside the water channel 1 can proceed normally. When power is off, the electromagnetic device 504 loses power, and the compressed spring 503 extends freely. The spring 503 moves the transmission rod 502 closer to the water channel 1, causing the sealing element 3 to move closer to the water channel 1, thus preventing water flow inside the water channel 1 and achieving the function of stopping water flow upon power failure.

[0021] Preferably, a water flow baffle 201 is provided on the inner side of the water flow channel 1. The water flow baffle 201 is located on the lower side of the control channel 202. When the sealing element 3 is in the lower position, it can contact the water flow baffle 201. The water flow baffle 201 divides the water flow channel 1 into left and right sides. The left side connects to the water heater, and the right side connects to the water outlet. The water flow on the left side is blocked by the water flow baffle 201 and then enters the inner side of the control channel 202 before entering the right side of the water flow channel 1. When the power is off, the electromagnetic device 504 loses its electromagnetic attraction to the transmission rod 502. When the spring 503 resets, it can make the sealing element 3 contact the water flow baffle 201, thereby blocking the water flow path and realizing the function of stopping water supply when the power is off. Preferably, the height of the water flow baffle 201 is greater than the diameter of the water channel 101 and extends a certain distance into the inner side of the control channel 202.

[0022] Preferably, the sealing element 3 includes a connecting block 301 for fixing, the connecting block 301 is connected to the transmission rod 502, the connecting block 301 can be made of metal to ensure the reliability of the connection between the connecting block 301 and the transmission rod 502, and the outer periphery of the connecting block 301 is covered with a rubber layer for sealing.

[0023] Further, see Figure 3 A stepper motor 505 is installed inside the valve body 501. The stepper motor 505 can change the position of the transmission rod 502. The transmission rod 502 drives the seal 3 to move, so that the seal 3 and the water flow baffle 201 form an adjustable gate. The transmission rod 502 is equipped with a rack 506, and the output shaft of the stepper motor 505 is equipped with a gear. The gear meshes with the rack 506. When the stepper motor 505 rotates, it drives the rack 506 to move through the gear, thereby changing the position of the transmission rod 502. The transmission rod 502 changes the position of the seal 3 inside the control channel 202. By changing the distance between the seal 3 and the water flow baffle 201, the flow area of ​​the water passing through this point is changed, realizing the function of adjusting the hot water ratio. When a power failure occurs, since the stepper motor 505 is also de-energized, the spring 503 can still push the transmission rod 502 to move the seal 3, realizing the function of stopping water flow when power is lost. The valve body 501 is provided with a through hole through which the transmission rod 502 passes, and the transmission rod 502 can move axially relative to the through hole. For example, a guide key is provided between the transmission rod 502 and the through hole to prevent the transmission rod 502 from rotating relative to the through hole.

[0024] A water flow sensor and a water temperature sensor are installed in the pipeline, and data is exchanged with the control terminal to enable the stepper motor 505 to work, thereby realizing the adjustment of water temperature and water volume and achieving the function of constant water temperature.

[0025] This invention, through the above structure, incorporates an electromagnetic device in the water passage for water shut-off. In the event of a power outage, the spring in the electromagnetic device pushes the transmission rod, causing the seal to cut off the water passage and prevent water flow. This achieves automatic closure of the water passage after a power outage in a gas water heater, preventing damage to the house due to excessive water leakage if the tank freezes and cracks. Simultaneously, the stepper motor inside the electromagnetic device controls the water flow rate, effectively controlling the hot water ratio and adjusting the water temperature. Combined with water flow and temperature sensors, it enables the adjustment of water temperature and volume, achieving a constant water temperature.

[0026] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A leak-proof power-off water shut-off device, comprising pipelines, characterized in that, The pipeline is provided with a water passage for water flow, and the pipeline is also provided with a control passage that is connected to the water passage. The inner side of the control passage is provided with a seal that can slide relative to it, and the seal can realize the function of cutting off water. The sealing element is connected to the solenoid valve body that drives its movement. The solenoid valve body includes a valve body, an electromagnetic device is provided on the inner side of the valve body, and a transmission rod used in conjunction with the electromagnetic device is also provided on the inner side of the valve body. The transmission rod is connected to the sealing element, and a spring is provided between the electromagnetic device and the transmission rod to reset the transmission rod. When the transmission rod is in the reset state, it can prevent the water flow inside the water passage from flowing through the sealing element.

2. The water-stopping and leak-proof power-off device as described in claim 1, characterized in that, The height of the seal is greater than the diameter of the water channel, and when the seal is located inside the water channel, it can prevent the water flow inside the water channel.

3. The water-stopping and leak-proof power-off device as described in claim 1, characterized in that, A water flow baffle is provided on the inner side of the water flow channel. The water flow baffle is located on the lower side of the control channel. When the sealing element is in the lower position, it can contact the water flow baffle. The water flow baffle divides the water flow channel into left and right sides.

4. The water-stopping and leak-proof power-off device as described in claim 3, characterized in that, The height of the water flow baffle is greater than the diameter of the water channel and extends to the inside of the control channel.

5. The water-stopping and leak-proof power-off device as described in claim 1, characterized in that, The sealing element includes a connecting block for fixing, the connecting block being connected to the transmission rod, and the outer periphery of the connecting block being covered with a rubber layer for sealing.

6. A water-stopping and leak-proof power-off device as described in claim 3, characterized in that, The valve body is equipped with a stepper motor on its inner side. The stepper motor can change the position of the transmission rod. The transmission rod drives the sealing element to move. The sealing element and the water flow baffle form an adjustable gate. Changing the distance between the sealing element and the water flow baffle changes the flow area of ​​the water flow, thereby realizing the function of adjusting the hot water ratio.

7. A water-stopping and leak-proof power-off device as described in claim 6, characterized in that, The transmission rod is equipped with a rack, and the output shaft of the stepper motor is equipped with a gear. The gear meshes with the rack to enable the stepper motor to change the position of the transmission rod.

8. A water-stopping device for preventing water leakage as described in claim 7, characterized in that, The valve body is provided with a through hole through which the transmission rod passes, and the transmission rod is axially movable relative to the through hole.

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