Water leakage detection equipment and water purifier
By incorporating a leak detection device into the water purifier, using a water collection box and sensors to identify leaks, and then controlling the controller to stop the machine from running, the problem of water purifier leakage is solved, achieving resource conservation and safety protection.
Patent Information
- Application Number
- CN202422984146.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-04
AI Technical Summary
Existing water purifiers are prone to leaks, leading to water waste and safety hazards. Furthermore, existing equipment cannot promptly identify and address leaks.
Design a water leakage detection device, including a water receiving box, a sensor, and a controller. The sensor identifies whether there is water in the water receiving chamber, and the controller stops the water purifier when a leak is detected, and collects the leaked water through a sealing component.
Effectively identify water purifier leaks, promptly shut down the entire machine, avoid environmental pollution, conserve water resources, and prevent safety hazards.
Smart Images
Figure CN223551229U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of water purifier technology, and in particular to a leak detection device and a water purifier. Background Technology
[0002] Currently, with the gradual improvement of people's living standards, the health of drinking water has received increasing attention, and water purifiers have gradually become one of the important electrical appliances in life. Many commercial places, such as offices, hospitals, schools, and factories, have installed water purifiers to facilitate water use and meet the drinking water needs of multiple people. However, existing water purifiers have the problem of leakage, which can easily lead to water accumulation in the installation area, resulting in a significant waste of water resources, and also poses some safety hazards. Utility Model Content
[0003] Therefore, it is necessary to provide a leak detection device and a water purifier to address the above problems.
[0004] A leak detection device is used in a water purifier, the water purifier including a base and a body mounted on the base, the base having a communication port, the leak detection device comprising:
[0005] A water receiving box has a water receiving cavity inside and a water inlet communicating with the water receiving cavity; the water receiving box is fitted onto the base and the water inlet is kept in communication with the communicating port;
[0006] A sensor, fitted onto the base, at least a portion of which extends into the water receiving chamber through the communication port; the sensor is used to detect the presence of water in the water receiving chamber; and
[0007] The controller is communicatively connected to both the sensor and the body, and is configured to control the body to stop operating when the sensor detects the presence of water in the water inlet chamber.
[0008] In one embodiment, the water receiving box is further provided with a drainage channel communicating with the water receiving cavity;
[0009] The leakage detection device also includes a sealing component that can be opened and closed to seal the drainage channel of the water receiving box.
[0010] In one embodiment, the sealing assembly includes a sealing valve and an elastic element, the sealing valve being movably disposed within the drain channel, the elastic element deformably abutting between the sealing valve and the inner wall of the drain channel, and the elastic element being used to generate a force that causes the sealing valve to press against the water collection box to seal the drain channel.
[0011] In one embodiment, the sealing valve includes a valve core and a valve body fitted to a first end of the valve core; the inner wall of the drainage channel protrudes to form a limiting portion that extends circumferentially and forms a limiting opening, the valve core is movably inserted into the limiting opening, the valve body is disposed on the side of the limiting portion near the water receiving cavity, the elastic element is compressively fitted between the side of the limiting portion away from the water receiving cavity and the second end of the valve core away from the valve body, and the elastic element is used to generate a force that causes the second end of the valve core to move in a direction away from the limiting portion.
[0012] In one embodiment, the outer peripheral side of the second end of the valve core protrudes to form an abutment portion that extends circumferentially and closes therein, the abutment portion being used to abut against the elastic element.
[0013] In one embodiment, the outer peripheral side of the first end of the valve core is recessed to form a mounting groove that extends circumferentially, the valve body has a through mounting hole, the first end of the valve core passes through the mounting hole, and at least part of the valve core is embedded in the mounting groove.
[0014] In one embodiment, the water receiving box includes a box body and a drain section. The box body has a water receiving cavity, and one side of the box body has a water inlet communicating with the water receiving cavity. The other side of the box body has a protruding drain section, and a through drain channel is formed in the drain section, and the drain channel is communicating with the water receiving cavity.
[0015] In one embodiment, a fixing member is further included, the fixing member having a fixing hole, the fixing member being fitted to the side of the base away from the water receiving box, and the fixing hole communicating with the communication port, the sensor being detachably inserted into the fixing hole.
[0016] In one embodiment, the sensor includes a sensing unit and an information processing unit; the information processing unit is communicatively connected to both the sensing unit and the body; the sensing unit extends into the water receiving cavity through the communication port; and the information processing unit is located on the base.
[0017] The sensing unit is used to identify whether there is water in the water receiving cavity; the information processing unit is configured to generate a control command when the sensing unit detects the presence of water in the water receiving cavity; the controller is configured to control the machine body to stop operating after receiving the control command from the information processing unit.
[0018] A water purifier includes a body, a base, and a leak detection device as described in the foregoing embodiments. The body is mounted on the base, and the base has a communication port. The leak detection device is mounted on the bottom surface of the base and communicates with the communication port.
[0019] The aforementioned leak detection device and water purifier include a base and a body mounted on the base, with a communication port on the base. The leak detection device includes a water receiving box, a sensor, and a controller. The water receiving box has a water receiving cavity and an inlet communicating with the cavity; the water receiving box is mounted on the base, maintaining communication between the inlet and the communication port. The sensor is mounted on the base, with at least a portion extending into the water receiving cavity through the communication port. The sensor is used to detect the presence of water in the water receiving cavity. The controller is electrically connected to the sensor and the body, and communicatively connected to both. The controller is configured to stop the machine when the sensor detects the presence of water in the water receiving cavity. The leak detection device provided in this application, through the cooperation of the water receiving box, sealing components, sensor, and controller, can identify leaks in the water purifier and promptly stop the entire machine, thereby saving resources. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the leakage detection equipment in this application.
[0021] Figure 2 This is a schematic diagram of the water receiving box in this application.
[0022] Figure 3 This is a schematic diagram of the valve core structure in this application.
[0023] Figure 4 This is a schematic diagram of the valve body in this application.
[0024] Figure 5 This is a structural schematic diagram of the fastener in this application.
[0025] Figure 6 This is a schematic diagram of the sensor structure in this application.
[0026] Figure 7 This is a cross-sectional structural diagram of the leakage detection equipment in this application.
[0027] Figure 8 for Figure 1 A magnified schematic diagram of a portion of area A in the middle.
[0028] Figure 9 This is a schematic diagram of the base structure in this application.
[0029] Figure Labels
[0030] Leak detection equipment 100;
[0031] Water receiving box 10; box body 101; drainage part 102; mounting part 103; water receiving cavity 104; water inlet 105; drainage channel 106; limiting part 107; limiting port 108;
[0032] Sealing assembly 11; sealing valve 111; valve core 1111; mounting groove 1112; abutment part 1113; valve body 1114; mounting hole 1115; elastic element 112;
[0033] Sensor 12; Sensing unit 121; First connection unit 122; Information processing unit 123; Second connection unit 124;
[0034] Fastener 13; Fixing hole 131;
[0035] Base 200; Connecting port 20. Detailed Implementation
[0036] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.
[0037] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0038] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0039] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0040] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0041] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.
[0042] Currently, with the gradual improvement of people's living standards, the health of drinking water has received increasing attention, and water purifiers have gradually become one of the important electrical appliances in life. Many commercial places, such as offices, hospitals, schools, and factories, have installed water purifiers to facilitate water use and meet the drinking water needs of multiple people. However, existing water purifiers have the problem of leakage, which can easily lead to water accumulation in the installation area, resulting in a significant waste of water resources, and also poses some safety hazards.
[0043] In view of the above problems, one or more embodiments of this application provide a water purifier that uses a leak detection device to collect leaked water when a leak occurs, thereby preventing environmental pollution. Simultaneously, it can also identify leaks and promptly stop the entire machine from operating, thus saving resources.
[0044] Specifically, please see Figures 1 to 9The water purifier includes a base 200 and a body (not shown) mounted on the base. The base 200 has a connecting port 20. The leak detection device 100 includes a water receiving box 10, a sensor 12, and a controller 13. The water receiving box 10 has a water receiving cavity 104 and an inlet 105 communicating with the water receiving cavity 104. The water receiving box 10 is mounted on the base 200, maintaining communication between the inlet 105 and the connecting port 20. The sensor 12 is mounted on the base 200, with at least a portion of the sensor 12 extending into the water receiving cavity 104 through the connecting port 20. The sensor 12 is used to detect the presence of water in the water receiving cavity 104. The controller 13 is electrically connected to the sensor 12 and the body, and communicatively connected to both the sensor 12 and the body. The controller 13 is configured to control the body to stop operating when the sensor 12 detects the presence of water in the water receiving cavity 104.
[0045] Understandably, when a leak occurs in the machine body (not shown), the exposed water will drip onto the base 200 and enter the water receiving chamber 104 of the water receiving box 10 via the connecting port 20 and the water inlet 105. Subsequently, the sensor 12 will detect the presence of water in the water receiving chamber 104. After receiving the detection result from the sensor 12, the controller will control the machine body (not shown) to stop operating based on the detection result. In this way, the leak detection device 100 can collect the leaked water from the machine body (not shown) to avoid environmental pollution. At the same time, it can also identify a leak in the water purifier and promptly control the entire machine to stop operating, thereby saving resources.
[0046] Furthermore, the water receiving box 10 is also provided with a drainage channel 106 that communicates with the water receiving cavity 104. The leakage detection device 100 also includes a sealing component 11, which is sealably fitted into the drainage channel 106 of the water receiving box 10.
[0047] The drainage channel 106 is used to drain water from the water receiving chamber 104 after a leak has occurred and repairs have been completed. This prevents water from accumulating in the receiving chamber 104 for an extended period, which could affect the normal operation of the sensor 12 and the entire water purifier. The sealing component 11 is sealed to the drainage channel 106, preventing water from leaking from the receiving chamber 104 to the outside environment and causing pollution. The sealing component 11 also ensures that any leaked water from the machine body (not shown) collects in the receiving chamber 104, facilitating sensor 12 identification and confirmation, thus ensuring the normal operation of the leak detection device 100. Furthermore, users can control the sealing component 11 to open and close the drainage channel 106 as needed, allowing for the drainage or collection of water from the receiving chamber 104. This provides flexibility and ease of operation.
[0048] The water leakage detection device 100 provided in this application embodiment, through the cooperation of the water receiving box 10, the sealing component 11, the sensor 12, and the controller, can identify water leakage faults in the water purifier and promptly control the entire machine to stop operating, thereby saving resources. Simultaneously, it can also collect water leaking from the machine body (not shown) to avoid environmental pollution.
[0049] In some embodiments, see Figure 1 , Figure 7 and Figure 8 The sealing assembly 11 includes a sealing valve 111 and an elastic member 112. The sealing valve 111 is movably disposed in the drain channel 106. The elastic member 112 deformably abuts against the inner wall of the drain channel 106 and generates a force that causes the sealing valve 111 to press against the water receiving box 10 to seal the drain channel 106.
[0050] Understandably, this application utilizes the elastic force generated by the deformation of the elastic element 112 to push the sealing valve 111 to move, so that the sealing valve 111 abuts against the water receiving box 10, thereby sealing the drainage channel 106. In this way, the sealing assembly 11 can also ensure that the water leaking from the machine body (not shown) gathers in the water receiving cavity 104, so that the sensor 12 can identify and confirm it, thereby ensuring the normal operation of the leakage detection device 100.
[0051] Correspondingly, when the water purifier experiences a leak and is repaired, the user can apply force to the sealing valve 111 to move it, thereby releasing the seal on the drain channel 106. This allows water to drain from the water receiving chamber 104, preventing water from accumulating in the chamber and affecting the normal operation of the sensor 12 and the entire water purifier. It should also be noted that when the sealing valve 111 moves, the elastic element 112 undergoes compression or extension deformation under the action of the sealing valve 111, storing elastic potential energy sufficient to push the sealing valve 111 back to its original position and seal the drain channel 106. Thus, after the user drains the water from the water receiving chamber 104 and releases the force applied to the sealing valve 111, the elastic element 112 will push the sealing valve 111 back to its original position and seal the drain channel 106.
[0052] In some embodiments, see Figure 3 , Figure 4 and Figure 8The sealing valve 111 includes a valve core 1111 and a valve body 1114 fitted to the first end of the valve core 1111. A limiting portion 107 protrudes from the inner wall of the drainage channel 106 and extends in a closed manner along its circumference. The limiting portion 107 surrounds a limiting opening 108. The valve core 1111 is movably inserted into the limiting opening 108. The valve body 1114 is disposed on the side of the limiting portion 107 near the water receiving cavity 104. An elastic member 112 is compressively fitted between the side of the limiting portion 107 away from the water receiving cavity 104 and the second end of the valve core 1111 away from the valve body 1114. The elastic member 112 generates a force that causes the second end of the valve core 1111 to move in the direction away from the limiting portion.
[0053] It is understood that this application utilizes the elastic force generated by the compression of the elastic element 112 to push the second end of the valve core 1111 to move away from the limiting part. The valve core 1111 then drives the valve body 1114 to move synchronously, so that the valve body 1114 and the limiting part 107 abut against the surface of the water receiving cavity 104, thereby achieving the sealing of the drainage channel 106.
[0054] Correspondingly, when the user needs to release the seal, a force is applied to the second end of the valve core 1111, causing the second end of the valve core 1111 to move towards the limiting part. This causes the valve core 1111 to move synchronously with the valve body 1114, separating the valve body 1114 from the surface of the limiting part 107 near the water receiving chamber 104. Water in the water receiving chamber 104 is then discharged into the drainage channel 106 through the gap between the valve body 1114 and the limiting part 107 and the limiting port 108. Furthermore, the movement of the valve core 1111 further compresses the elastic element 112, storing elastic potential energy that can push the sealing valve 111 to reset and seal the drainage channel 106. Thus, after the user drains the water from the water receiving chamber 104 and releases the force applied to the sealing valve 111, the elastic element 112 pushes the sealing valve 111 to reset and seal the drainage channel 106.
[0055] In some embodiments, see Figure 3 and Figure 8 The outer peripheral side of the second end of the valve core 1111 protrudes to form an abutment portion 1113 that extends in a closed manner along its circumference. The abutment portion 1113 is used to abut against and cooperate with the elastic member 112.
[0056] In some embodiments, see Figure 3 and Figure 8 The outer peripheral side of the first end of the valve core 1111 is recessed to form a mounting groove 1112 that extends in a closed manner along its circumference. The valve body 1114 has a through mounting hole 1115. The first end of the valve core 1111 passes through the mounting hole 1115, and at least part of the valve core 1111 is embedded in the mounting groove 1112.
[0057] Understandably, the side wall of the mounting groove 1112 can abut against the valve body 1114, thereby limiting the valve body 1114 and ensuring a stable connection between the valve body 1114 and the valve core 1111.
[0058] In some embodiments, see Figure 2 , Figure 3 and Figure 8 The water receiving box 10 includes a box body 101 and a drain part 102. A water receiving cavity 104 is formed inside the box body 101. A water inlet 105 communicating with the water receiving cavity 104 is opened on one side of the box body 101. A drain part 102 is formed protruding from the other side of the box body 101. A through drain channel 106 is formed inside the drain part 102, and the drain channel 106 is communicating with the water receiving cavity 104.
[0059] In some embodiments, see Figure 2 and Figure 8 The water receiving box 10 also includes a mounting part 103. The mounting parts 103 are attached to the outer walls of the two opposite sides of the box body 101. The mounting parts 103 are used to mate with the base 200.
[0060] Understandably, the mounting part 103 can increase the contact area between the water receiving box 10 and the base 200, thereby ensuring a stable connection between the water receiving box 10 and the base 200.
[0061] In some embodiments, see Figure 6 and Figure 7 The sensor 12 includes a sensing unit 121 and an information processing unit 123. The information processing unit 123 is communicatively connected to the sensing unit 121 and the main body. The sensing unit 121 extends into the water receiving cavity 104 through the communication port 20, and the information processing unit 123 is located on the base 200. The sensing unit 121 is used to detect whether there is water in the water receiving cavity 104; the information processing unit 123 is configured to generate a control command when the sensing unit 121 detects the presence of water in the water receiving cavity 104; the controller 13 is configured to control the main body to stop operating after receiving the control command from the information processing unit 123.
[0062] Understandably, when a water leak occurs in the machine body (not shown), the exposed water will drip onto the base 200 and enter the water receiving chamber 104 of the water receiving box 10 via the connecting port 20 and the water inlet 105. Subsequently, the sensor unit 121 will detect the presence of water in the water receiving chamber 104. Upon receiving the detection result, the information processing unit 123 will generate a corresponding control command. After receiving the control command from the sensor 12, the controller will stop the machine body (not shown) from operating according to the command. In this way, the leak detection device 100 can collect the leaked water from the machine body (not shown) to avoid environmental pollution. Simultaneously, it can also identify water leaks in the water purifier and promptly stop the entire machine, thereby saving resources.
[0063] Furthermore, the sensor 12 also includes a first connection portion 122 and a second connection portion 124. The sensing portion 121 and at least a portion of the first connection portion 122 extend into the water receiving cavity 104 through the communication port 20. The other portion of the first connection portion 122, the information processing portion 123 and the second connection portion 124 are all located on the base 200, and the end of the second connection portion 124 facing away from the information processing portion 123 is electrically connected to the controller.
[0064] It is understood that the specific design of the first connecting part 122 and the second connecting part 124 is not limited. For example, the first connecting part 122 and the second connecting part 124 may be wires or optical cables.
[0065] In some embodiments, see Figure 5 and Figure 8 The leak detection device 100 also includes a fixing member 13, which has a fixing hole 131. The fixing member 13 is connected to the side of the base 200 away from the water receiving box 10, and the fixing hole 131 is connected to the connecting port 20. The sensor 12 is detachably inserted into the fixing hole 131.
[0066] It is understandable that by assembling the sensor 12 with the fixing hole 131 of the fixing member 13, the sensor 12 can be prevented from falling out of the water receiving box 10, which helps to ensure the normal operation of the equipment.
[0067] The specific design of the fixing hole 131 is not limited. For example, the fixing hole 131 extends along an irregular curve, so that by inserting the first connecting part 122 into the fixing hole 131, the first connecting part 122 can be prevented from coming out, thereby achieving stable assembly of the sensor 12.
[0068] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0069] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.
Claims
1. A leak detection device for a water purifier, the water purifier comprising a base and a body fitted onto the base, characterized in that, The base has a communication port, and the leakage detection device includes: A water receiving box has a water receiving cavity inside and a water inlet communicating with the water receiving cavity; the water receiving box is fitted onto the base and the water inlet is kept in communication with the communicating port; A sensor, fitted onto the base, at least a portion of which extends into the water receiving chamber through the communication port; the sensor is used to detect the presence of water in the water receiving chamber; and The controller is communicatively connected to both the sensor and the body, and is configured to control the body to stop operating when the sensor detects the presence of water in the water inlet chamber.
2. The leakage detection device according to claim 1, characterized in that, The water receiving box is also provided with a drainage channel that communicates with the water receiving cavity; The leakage detection device also includes a sealing component that can be opened and closed to seal the drainage channel of the water receiving box.
3. The leakage detection device according to claim 2, characterized in that, The sealing assembly includes a sealing valve and an elastic element. The sealing valve is movably disposed within the drainage channel, and the elastic element is deformably abutted between the sealing valve and the inner wall of the drainage channel.
4. The leakage detection device according to claim 3, characterized in that, The sealing valve includes a valve core and a valve body fitted to a first end of the valve core; the inner wall of the drainage channel protrudes to form a limiting portion that extends circumferentially and forms a limiting opening, the valve core is movably inserted into the limiting opening, the valve body is disposed on the side of the limiting portion near the water receiving cavity, and the elastic element is compressively fitted between the side of the limiting portion away from the water receiving cavity and the second end of the valve core away from the valve body.
5. The leakage detection device according to claim 4, characterized in that, The outer peripheral side of the second end of the valve core protrudes to form an abutment portion that extends in a closed manner along its circumference, the abutment portion being used to abut and cooperate with the elastic element.
6. The leakage detection device according to claim 4, characterized in that, The outer peripheral side of the first end of the valve core is recessed to form a mounting groove that extends in a closed manner along its circumference. The valve body has a through mounting hole, the first end of the valve core passes through the mounting hole, and at least part of the valve core is embedded in the mounting groove.
7. The leakage detection device according to claim 1, characterized in that, The water receiving box includes a box body and a drain section. The box body has a water receiving cavity. One side of the box body has a water inlet that communicates with the water receiving cavity. The other side of the box body has a protruding drain section. The drain section has a through-drainage channel that communicates with the water receiving cavity.
8. The leakage detection device according to claim 1, characterized in that, It also includes a fixing member with a fixing hole. The fixing member is fitted to the side of the base away from the water box, and the fixing hole is connected to the communication port. The sensor is detachably inserted into the fixing hole.
9. The leakage detection device according to claim 1, characterized in that, The sensor includes a sensing unit and an information processing unit; the information processing unit is communicatively connected to the sensing unit and the body; the sensing unit extends into the water receiving cavity through the communication port; and the information processing unit is located on the base. The sensing unit is used to identify whether there is water in the water receiving cavity; The information processing unit is configured to generate a control command when the sensing unit detects the presence of water in the water receiving cavity. The controller is configured to stop the machine body from operating upon receiving the control command from the information processing unit.
10. A water purifier, characterized in that, The device includes a body, a base, and a leakage detection device as described in any one of claims 1 to 9. The body is mounted on the base, the base has a communication port, and the leakage detection device is mounted on the bottom surface of the base and communicates with the communication port.