A leak detection device

Abstract

This utility model relates to a leak detection device for detecting and protecting household water purifiers from leaks. The household water purifier has multiple filter cartridges threaded to its bottom. The leak detection device also includes a tray, a collection cylinder, and a detection triggering structure. The tray has an open top and forms an internal space where the filter cartridges of the household water purifier are located. A control board with a buzzer is also located on the outside of the tray. The collection cylinder is fixed to the bottom of the tray. This leak detection device allows the tray to accommodate the filter cartridges of the household water purifier, catching any leaks. It uses a disposable expanding cotton to absorb water and mechanically trigger a switch. The structure is simple and can promptly alert the user when a leak occurs. Furthermore, an automatic drainage structure is included, which can automatically or manually open the drainage channel when the leakage is large, preventing water overflow.

Description

Technical Field

[0001] This utility model relates to the field of household water purifier testing technology, specifically a leak detection device. Background Technology

[0002] Household water purifiers have become an essential device for many families' daily drinking water. They filter and purify tap water through multi-stage filter cartridges. During use, water purifiers may leak due to aging, loosening, or poor sealing at the filter cartridge interface, pipe connection, and other parts.

[0003] However, currently, some household water purifiers are generally installed inside kitchen cabinets, which are not visible when the cabinets are not opened. In this case, if the water purifier leaks, it is difficult for the user to notice it in time. If it is not detected and dealt with in time, it will not only waste water resources, but also damage the indoor components inside the kitchen cabinet. Therefore, a leak detection device has been proposed. Utility Model Content

[0004] Based on the above description, this utility model provides a water leakage detection device that solves the technical problems pointed out in the background art.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A water leakage detection device for detecting and protecting a household water purifier from leaks, wherein the household water purifier has multiple purification filter cartridges threadedly connected to its bottom, and further includes:

[0006] The tray has an open top and forms an inner space in which the purification filter cartridge of the household water purifier is located. A control panel equipped with a buzzer is also provided on the outside of the tray.

[0007] The collection tube is fixed to the bottom of the tray;

[0008] The detection trigger structure includes a receiving cylinder and a conical disc fixedly mounted above the receiving cylinder. The receiving cylinder is detachably mounted in a collecting cylinder and contains disposable expansion cotton. A mounting base is provided at the bottom of the conical disc, and a switch is provided at the bottom of the mounting base. Two sets of sliding pillars are also fixed at the bottom of the mounting base, and a pushing member is slidably connected between the outer sides of the two sets of sliding pillars. The bottom of the pushing member is in contact with the upper surface of the disposable expansion cotton.

[0009] Based on the above technical solution, the present invention can be further improved as follows.

[0010] Furthermore, a sealing part is fixed at the bottom of the receiving cylinder, and the sealing part is threadedly connected to the collecting cylinder.

[0011] Furthermore, a handle is fixed to the bottom of the sealing part.

[0012] Furthermore, the bottom of the tray is provided with a conical hopper, which is wider at the top and narrower at the bottom, and the collecting cylinder is fixed to the bottom of the conical hopper.

[0013] Furthermore, it also includes an automatic drainage structure, which includes a first pipe and a second pipe. The second pipe is fixed to the bottom of the first pipe and is connected to a collecting cylinder through the first pipe. The second pipe is connected to the indoor drain pipe. A baffle is fixed to the right side of the first pipe by bolts. A through hole is opened in the center of the baffle. A sliding rod is slidably connected to the inside of the through hole. A stop is slidably connected in the first pipe. The stop is fixedly connected to the sliding rod. A spring is provided between the stop and the baffle. The spring is sleeved on the outside of the sliding rod.

[0014] Furthermore, a pull plate is fixed to the right end of the slide rod, and the pull plate is located on the outside of the first pipe.

[0015] Furthermore, a filter plate is fixed in the tray by bolts, and the filter plate is located below the purification filter cartridge.

[0016] Furthermore, the water inlet of the household water purifier is equipped with a solenoid valve, and the solenoid valve, buzzer, and switch are all electrically connected to the control board.

[0017] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0018] 1. This leak detection device has a tray that can accommodate the filter cartridge of a household water purifier. Leaks can be caught by the tray. In addition, a mechanical trigger switch is triggered by the expansion of disposable expansion cotton to absorb water. The structure is simple and can promptly alarm the user when a leak occurs.

[0019] 2. This leak detection device is equipped with an automatic drainage structure, which can automatically or manually open the drainage channel when the leakage is large to prevent water from overflowing. In addition, after detecting a leak, it automatically closes the solenoid valve to cut off the water supply, and at the same time, the buzzer alarm is sounded to prevent the damage from escalating. Attached Figure Description

[0020] Figure 1 A schematic diagram of the structure of a water leakage detection device provided in an embodiment of this utility model;

[0021] Figure 2 for Figure 1 A cross-sectional view;

[0022] Figure 3 for Figure 2 A magnified view of a portion of region A in the middle;

[0023] Figure 4 This is a schematic diagram of the structure of the receiving cylinder in an embodiment of this utility model;

[0024] Figure 5This is a schematic diagram of the conical disk and its connecting structure in an embodiment of this utility model.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1. Household water purifier; 11. Purification filter cartridge; 2. Cartridge; 21. Internal space; 22. Conical hopper; 23. Filter plate; 3. Collection cylinder; 4. Detection trigger structure; 41. Receiving cylinder; 411. Notch; 42. Disposable expansion cotton; 43. Conical disc; 431. Extension strip; 44. Switch; 45. Sliding column; 46. Pushing component; 47. Sealing part; 48. Handle; 5. Solenoid valve; 6. Control panel; 7. Automatic drainage structure; 71. First pipe; 72. Second pipe; 73. Baffle plate; 74. Sliding rod; 75. Baffle; 76. Spring; 77. Pull plate. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0028] like Figure 1 and 2 As shown in the figure, a leak detection device in this embodiment is used to detect and protect against leaks in a household water purifier 1. The bottom of the household water purifier 1 is threaded with multiple purification filter cartridges 11, and each purification filter cartridge 11 contains a water purification filter element. The water purification filter element is not shown in the figure, as this is prior art and will not be described in detail here. As designed in this embodiment, the leak detection device includes a tray 2, a collection cylinder 3, and a detection trigger structure 4.

[0029] The tray 2 has an open top and forms an inner space 21 in which the purification filter cartridge 11 of the household water purifier 1 is located, so that leakage water from the purification filter cartridge 11 can be collected through the tray 2.

[0030] To further explain, in order to collect the leaked water, the collecting cylinder 3 is fixed to the bottom of the tray 2. Specifically, the bottom of the tray 2 is provided with a conical part 22, which is wider at the top and narrower at the bottom. The collecting cylinder 3 is fixed to the bottom of the conical part 22. In this way, the water leaking from the household water purifier 1 can be collected into the collecting cylinder 3 through the conical part 22. In addition, a filter plate 23 is also fixed in the tray 2 by bolts. The filter plate 23 is located below the purification filter cartridge 11 and is used to intercept some large impurities.

[0031] As for detection trigger structure 4, such as Figure 2-4As shown, the detection trigger structure 4 includes a receiving cylinder 41, which is detachably installed in the collecting cylinder 3. The receiving cylinder 41 contains disposable expansion cotton 42. It should be noted that the bottom of the receiving cylinder 41 is provided with a notch 411, which allows water to be absorbed by the disposable expansion cotton 42 through the notch 411, thereby allowing it to expand subsequently. The detection trigger structure 4 also includes a conical disc 43 fixedly installed above the receiving cylinder 41. The conical disc 43 is fixed with a support leg between it and the tray 2. A mounting base is provided at the bottom of the conical disc 43. A switch 44 is provided at the bottom of the mounting base. Two sets of sliding columns 45 are also fixed at the bottom of the mounting base. The bottom of the sliding column 45 has a lower stop. A pusher 46 is slidably connected between the outer sides of the two sets of sliding columns 45. The bottom of the pusher 46 is attached to the upper surface of the disposable expansion cotton 42.

[0032] It should be noted that, as Figure 5 As shown, an extension strip 431 extending from the tray 2 is fixed to the outer side of the cone plate 43, and the front of the extension strip 431 is the wiring terminal of the switch 44.

[0033] It should also be noted that a solenoid valve 5 is installed at the inlet of the household water purifier 1, and a control board 6 is fixed to the outside of the tray 2. The control board 6 is model IVG-2 and is equipped with a buzzer. The solenoid valve 5, the buzzer, and the switch 44 are all electrically connected to the control board 6. Specifically, by writing a programming program, the control board 6 controls the solenoid valve 5 to close after the switch 44 is triggered, thereby cutting off the water supply to the household water purifier 1 and preventing the household water purifier 1 from continuing to leak. In addition, the control board 6 controls the buzzer to emit a buzzing sound to remind the user that a leak has occurred.

[0034] With this design, after a leak occurs, the leaked water will be collected in the collection cylinder 3 and then absorbed by the disposable expansion cotton 42. The disposable expansion cotton 42 will then expand, causing the pusher 46 to move upward. Finally, the pusher 46 will trigger the switch 44. After the switch 44 is triggered, the control board 6 will control the solenoid valve 5 to close, thereby cutting off the water supply to the household water purifier 1 and preventing the household water purifier 1 from continuing to leak. In addition, the control board 6 will control the buzzer to emit a buzzing sound to remind the user that a leak has occurred.

[0035] As an example, further explanation of the detachable arrangement of the receiving cylinder 41 within the collecting cylinder 3 is provided. A sealing part 47 is fixed to the bottom of the receiving cylinder 41, and the sealing part 47 is threadedly connected to the collecting cylinder 3. To facilitate rotation of the sealing part 47, a handle 48 is fixed to the bottom of the sealing part 47. Thus, the disposable expansion cotton 42 can be replaced after expansion. The replacement process involves rotating the receiving cylinder 41 as a whole to remove it, taking out the expanded disposable expansion cotton 42, replacing it with a new disposable expansion cotton 42, and then reinstalling the receiving cylinder 41 into the collecting cylinder 3 through the sealing part 47. As a result, leakage does not occur frequently, and the disposable expansion cotton 42 is inexpensive. In addition, the replacement process is not complicated and it is convenient to put into use.

[0036] In one embodiment, such as Figure 2 and 3 As shown, to promptly drain excess water when leakage is significant, the leak detection device also includes an automatic drainage structure 7. The automatic drainage structure 7 includes a first pipe 71 and a second pipe 72. The first pipe 71 is directly connected to the collecting cylinder 3. The second pipe 72 is fixed to the bottom of the first pipe 71 and connects to the collecting cylinder 3 via the first pipe 71. The second pipe 72 is also connected to the indoor drain pipe, which is not shown in the diagram. Figure 2 From a certain perspective, a baffle 73 is fixed to the right side of the first pipe 71 by bolts. A through hole is provided in the center of the baffle 73. A slide rod 74 is slidably connected inside the through hole. A stopper 75 is slidably connected in the first pipe 71. The stopper 75 is fixedly connected to the slide rod 74. A spring 76 is provided between the stopper 75 and the baffle 73, and the spring 76 is sleeved on the outside of the slide rod 74.

[0037] It should be noted that the force provided by spring 76 is determined according to design requirements. The design of spring 76 ensures that disposable expansion cotton 42 can absorb water normally, and also prevents the stopper 75 from blocking water when there is too much water, thus avoiding excessive water accumulation. In other words, it can drain as much water as possible in time when there is a lot of leakage.

[0038] With this design, when the leakage is small, the stopper 75 blocks the flow, allowing the disposable expansion cotton 42 to absorb the water normally, which in turn allows the pusher 46 to trigger the switch 44. Under leakage detection and protection conditions, when the leakage is excessive, the water will push the stopper 75 to move, so that most of the leakage can be discharged through the first pipe 71 and the second pipe 72.

[0039] In addition, a pull plate 77 is fixed at the right end of the slide rod 74. The pull plate 77 is located outside the first pipe 71. After a leak occurs, the pull plate 77 can be pulled directly to make the stopper 75 no longer block the flow of water, thereby draining the leak.

[0040] The operating instructions for this type of leak detection device are as follows:

[0041] Leakage collection: When the purification filter cartridge 11 or its connection of the household water purifier 1 leaks, the leaked water will drip into the inner space 21 of the tray 2. The cone-shaped part 22 at the bottom of the tray 2 will collect the water and guide it into the collection cylinder 3 at its bottom.

[0042] Leakage detection and triggering: Water in the collecting cylinder 3 is absorbed by the disposable expansion cotton 42 inside the receiving cylinder 41 through the notch 411 at the bottom of the receiving cylinder 41. After absorbing water, the disposable expansion cotton 42 expands and pushes the pusher 46 attached to its surface upward. The pusher 46 slides upward along the two sets of sliding columns 45, and finally triggers the switch 44 fixed at the bottom of the upper mounting base.

[0043] Response: After switch 44 is triggered, the signal is transmitted to control board 6, and control board 6 immediately issues the following instructions: First, control solenoid valve 5 to close, cut off the water supply to household water purifier 1 to prevent further leakage; Second, start the buzzer to sound an alarm to alert the user that there is a water leak.

[0044] The drainage instructions for this type of leak detection device are as follows:

[0045] Automatic mode: If the leakage is large, the water level and pressure in the collection cylinder 3 will rise rapidly. The pressure will act on the stopper 75 of the automatic drainage structure 7. When the water pressure overcomes the elastic force of the spring 76, it will push the stopper 75 and the slide bar 74 to the right, compress the spring 76, open the drainage channel, and the accumulated water will be discharged into the sewer through the first pipe 71 and the second pipe 72 to prevent water from overflowing from the tray 2.

[0046] Manual mode: In case of leakage, the user can also manually pull the pull plate 77 fixed to the right end of the slide bar 74 to actively pull the slide bar 74 and the stop 75 to the right, open the drainage channel for quick drainage.

[0047] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A water leakage detection device for detecting and preventing water leakage of a household water purifier (1) provided with a plurality of purification filter cartridges (11) threadedly connected at the bottom of the household water purifier (1), characterized in that, Also includes: The tray (2) has an open top and forms an inner space (21), in which the purification filter cartridge (11) of the household water purifier (1) is located. A control board (6) equipped with a buzzer is also provided on the outside of the tray (2). The collecting cylinder (3) is fixed to the bottom of the tray (2); The detection trigger structure (4) includes a receiving cylinder (41) and a cone (43) fixedly disposed above the receiving cylinder (41). The receiving cylinder (41) is detachably disposed in the collecting cylinder (3). A disposable expansion cotton (42) is built into the receiving cylinder (41). A mounting seat is provided at the bottom of the cone (43). A switch (44) is provided at the bottom of the mounting seat. Two sets of sliding columns (45) are also fixed at the bottom of the mounting seat. A pusher (46) is slidably connected between the outer sides of the two sets of sliding columns (45). The bottom of the pusher (46) is attached to the upper surface of the disposable expansion cotton (42).

2. The water leak detection apparatus of claim 1, wherein: The bottom of the receiving cylinder (41) is fixed with a sealing part (47), which is threadedly connected to the collecting cylinder (3).

3. The water leak detection apparatus of claim 2, wherein: A handle (48) is fixed to the bottom of the sealing part (47).

4. The water leak detection apparatus of claim 3, wherein: The bottom of the tray (2) is provided with a conical bucket (22), which is wider at the top and narrower at the bottom. The collecting cylinder (3) is fixed to the bottom of the conical bucket (22).

5. The water leak detection apparatus of any one of claims 1-4, wherein: It also includes an automatic drainage structure (7), which includes a first pipe (71) and a second pipe (72). The second pipe (72) is fixed to the bottom of the first pipe (71) and is connected to the collecting cylinder (3) through the first pipe (71). The second pipe (72) is connected to the indoor drain pipe. A baffle (73) is fixed to the right side of the first pipe (71) by bolts. A through hole is opened at the center of the baffle (73). A sliding rod (74) is slidably connected to the inside of the through hole. A stopper (75) is slidably connected in the first pipe (71). The stopper (75) is fixedly connected to the sliding rod (74). A spring (76) is provided between the stopper (75) and the baffle (73). The spring (76) is sleeved on the outside of the sliding rod (74).

6. The water leak detection apparatus of claim 5, wherein: The right end of the slide bar (74) is fixed with a pull plate (77), which is located outside the first pipe (71).

7. The water leak detection apparatus of claim 1, wherein: The tray (2) is fixed with a filter plate (23) by bolts, and the filter plate (23) is located below the purification filter cartridge (11).

8. A leakage detection device according to claim 6, characterized in that: The water inlet of the household water purifier (1) is equipped with a solenoid valve (5), and the solenoid valve (5), buzzer and switch (44) are electrically connected to the control board (6).

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