A high performance liquid leakage sensor
By introducing a flow guide, connecting tube, and hydrophobic layer into the leak sensor, combined with a lifting assembly and conductive sheet, the problems of non-adjustable sensitivity and false alarms of existing sensors are solved, and accurate leak detection in humid environments is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XUNZHI IND TECH (WUXI) CO LTD
- Filing Date
- 2025-09-10
- Publication Date
- 2026-06-23
Smart Images
Figure CN224398908U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of leakage sensor technology, and more specifically, to a high-performance leakage sensor. Background Technology
[0002] A leak sensor is a device used to detect liquid leaks and is widely used in industries such as manufacturing, home use, automotive, and medical fields. In industrial production, liquid leaks can lead to equipment damage, environmental pollution, or safety accidents, so it is necessary to monitor the liquid status in real time to prevent more serious damage. However, existing leak sensors still have some shortcomings.
[0003] Utility model patent CN222719110U discloses a leak detection sensor, including a housing. Inside the housing is a main control board. A leak signal line is mounted on one side of the main control board, and a leak detection board is connected to one side of the leak signal line. A leak indicator light is mounted on one side of the leak detection board, and a connecting wire is connected to one side of the leak detection board. A storage compartment is provided on one side of the connecting wire, and a winder is installed inside the storage compartment. A handle is attached to one end of the winder. The winder winds and stores the connecting wire, preventing it from becoming tangled and ensuring it is neatly wound together, resulting in a clean and aesthetically pleasing appearance and facilitating maintenance. Multiple leak probes are arranged on the outside of the leak probe to facilitate comprehensive monitoring of leak points and timely detection. Although the above-mentioned device can realize the function of winding cables, the trigger sensitivity of the existing leakage sensor is fixed at the factory and can only trigger the alarm at a single preset liquid volume. When used in a humid environment, it cannot ignore the small amount of water vapor, which can easily trigger the alarm falsely. It cannot adjust its own sensitivity and does not have a flow guiding function.
[0004] Therefore, we have made improvements to this and proposed a high-performance leakage sensor. Utility Model Content
[0005] The purpose of this invention is to address the problems of existing leakage sensors that cannot adjust sensitivity and lack flow guiding function.
[0006] To achieve the above-mentioned objectives, this utility model provides the following technical solution:
[0007] High-performance leakage sensors to improve the above problems.
[0008] The application is as follows:
[0009] The device includes a flow deflector, a first connecting pipe fixedly connected to the lower part of the flow deflector, a second connecting pipe fixedly connected to the first connecting pipe, a third connecting pipe installed on the second connecting pipe, a support block welded to the third connecting pipe, a screw rotatably connected to the support block, an outer bushing threaded to the outer side of the screw, a first connecting plate installed on the outer bushing, a first conductive sheet provided on the first connecting plate, a sealing assembly installed on the third connecting pipe, a power supply and an alarm light installed on the second connecting pipe, the positive terminal of the power supply connected to the positive terminal of the alarm light, the negative terminal of the alarm light connected to the second conductive sheet, and the negative terminal of the power supply connected to the first conductive sheet.
[0010] As a preferred technical solution of this application, the inner walls of the flow guide, the first connecting pipe, the second connecting pipe and the third connecting pipe are all provided with a hydrophobic layer, and the flow guide, the first connecting pipe, the second connecting pipe and the third connecting pipe are all interconnected.
[0011] As a preferred technical solution of this application, the flow guide, the first connecting pipe, the second connecting pipe, the third connecting pipe and the support block are fixedly connected as an integral structure.
[0012] As a preferred technical solution of this application, a bracket is fixedly provided on the air guide, and a support ring is installed below the bracket.
[0013] As a preferred technical solution of this application, a connecting plate is fixedly provided on the first connecting pipe and the third connecting pipe, and a connecting column is fixedly connected to the side of the connecting plate, and the connecting column is fixedly connected to the support ring.
[0014] As a preferred technical solution of this application, the inner diameters of the first connecting pipe and the third connecting pipe are the same, and the inner diameter of the second connecting pipe is smaller than the inner diameter of the first connecting pipe.
[0015] As a preferred technical solution of this application, a rotating block is fixedly connected to the top of the screw, and the surface of the rotating block is provided with longitudinal raised lines.
[0016] As a preferred technical solution of this application, the screw, the first connecting pipe and the third connecting pipe are all parallel to each other, and the outer bushing forms a lifting structure between the screw and the third connecting pipe.
[0017] As a preferred technical solution of this application, the sealing assembly includes an opening and a moving groove formed on the third connecting pipe, a first sliding plate is slidably installed in the opening, and a second sliding plate is fixedly disposed between the first sliding plate and the first connecting plate.
[0018] As a preferred technical solution of this application, the height of the second sliding plate is greater than twice the height of the opening, and the first conductive sheet passes through the first and second sliding plates.
[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0020] In the scheme of this application:
[0021] 1. By using a screw, outer bushing, first conductive plate, and second conductive plate, the sensitivity of the leak detection can be adjusted. By rotating the screw, the height of the outer bushing can be adjusted, and then the height of the first conductive plate can be changed using the lifting component, so that the alarm light can be triggered at different liquid levels, thus enhancing the adaptability of the device. When used in a humid environment, the device will not trigger an alarm even if a small amount of liquid remains in the second connecting pipe, thus solving the problem that existing leak sensors are prone to false alarms due to a small amount of liquid remaining in a humid environment.
[0022] 2. The device is equipped with a lifting assembly, a flow guide, and a hydrophobic layer. By placing the device at the detection position, when the container leaks, the liquid will be automatically guided through the hydrophobic layer into the connecting pipe composed of the first connecting pipe, the second connecting pipe, and the third connecting pipe. In conjunction with the lifting assembly, an adjustable detection function is achieved, which solves the problem that the existing leakage sensors cannot adjust the detection sensitivity and do not have a flow guiding function. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0024] Figure 2 This is a schematic diagram of the connection structure between the flow guide cover and the first connecting pipe of this utility model;
[0025] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A;
[0026] Figure 4 This is a schematic diagram of the air guide cover and structure of this utility model;
[0027] Figure 5 This is a schematic diagram of the internal structure of the third connecting pipe of this utility model;
[0028] Figure 6 This is a schematic diagram of the connection structure between the outer bushing and the first connecting plate of this utility model.
[0029] The diagram shows: 1. Flow guide; 2. First connecting pipe; 3. Second connecting pipe; 4. Third connecting pipe; 5. Support block; 6. Rotating block; 7. Screw; 8. Hydrophobic layer; 9. Outer bushing; 10. First connecting plate; 11. First conductive sheet; 12. Sealing assembly; 1201. First sliding plate; 1202. Second sliding plate; 1203. Opening; 1204. Moving groove; 13. Power supply; 14. Alarm light; 15. Second conductive sheet; 16. Bracket; 17. Connecting plate; 18. Connecting column; 19. Support ring. Detailed Implementation
[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.
[0031] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
[0032] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.
[0033] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0034] In the description of this utility model, it should be noted that the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. These terms are only for the convenience of describing this utility model 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 on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0035] Example 1:
[0036] like Figures 1-6As shown, this embodiment proposes a high-performance leakage sensor, including a flow guide shroud 1. A first connecting pipe 2 is fixedly connected to the lower part of the flow guide shroud 1. A second connecting pipe 3 is fixedly connected to the first connecting pipe 2. A third connecting pipe 4 is installed on the second connecting pipe 3. A support block 5 is welded to the third connecting pipe 4. A screw 7 is rotatably connected to the support block 5. An outer bushing 9 is threaded to the outer side of the screw 7. A first connecting plate 10 is installed on the outer bushing 9. A first conductive sheet 11 is provided on the first connecting plate 10. A sealing assembly 12 is installed on the third connecting pipe 4. A power supply 13 and an alarm light are installed on the second connecting pipe 3. 14. The positive terminal of the power supply 13 is connected to the positive terminal of the alarm light 14, the negative terminal of the alarm light 14 is connected to the second conductive plate 15, and the negative terminal of the power supply 13 is connected to the first conductive plate 11. The device is placed outside the container at the detection position. When the container leaks, the liquid will flow through the guide cover 1 into the connecting pipe composed of the first connecting pipe 2, the second connecting pipe 3, and the third connecting pipe 4. The device can adjust the height difference between the first conductive plate 11 and the second conductive plate 15 by rotating the screw 7, so that the device can trigger a leak alarm at different liquid levels. It is suitable for use in humid environments and avoids the device from falsely triggering the alarm due to humid environments.
[0037] Example 2:
[0038] The solution in Example 1 will be further described below with reference to its specific working method.
[0039] like Figures 1-3 As shown, in a preferred embodiment, based on the above method, a hydrophobic layer 8 is further provided on the inner wall of the flow guide shroud 1, the first connecting pipe 2, the second connecting pipe 3, and the third connecting pipe 4. The flow guide shroud 1, the first connecting pipe 2, the second connecting pipe 3, and the third connecting pipe 4 are all interconnected, ensuring that the leaked liquid can flow through the hydrophobic layer 8 into the connecting pipe formed by the first connecting pipe 2, the second connecting pipe 3, and the third connecting pipe 4, so as to adapt to the conductive sheet with adjusted sensitivity in the subsequent process.
[0040] like Figure 3 As shown, in a preferred embodiment, based on the above method, the flow guide shroud 1, the first connecting pipe 2, the second connecting pipe 3, the third connecting pipe 4 and the support block 5 are further fixedly connected as an integral structure. The inner diameters of the first connecting pipe 2 and the third connecting pipe 4 are the same, and the inner diameter of the second connecting pipe 3 is smaller than that of the first connecting pipe 2. The smaller inner diameter of the second connecting pipe 3 allows it to store less liquid, thereby improving the leakage detection accuracy of the device.
[0041] like Figure 4As shown, in a preferred embodiment, based on the above method, a bracket 16 is further fixedly installed on the flow guide shroud 1, and a support ring 19 is installed below the bracket 16. Connecting plates 17 are fixedly installed on the first connecting pipe 2 and the third connecting pipe 4, and connecting posts 18 are fixedly connected to the sides of the connecting plates 17. The connecting posts 18 and the support ring 19 are fixedly connected. The connecting posts 18 and the connecting plates 17 are used to support the three connecting pipes, and the support ring 19 is used to support the connecting posts 18 and the bracket 16, so that the entire device can be placed stably.
[0042] like Figure 5 As shown, in a preferred embodiment, based on the above method, a rotating block 6 is further fixedly connected to the top of the screw 7. The surface of the rotating block 6 is provided with longitudinal ridges to increase the friction force when in contact with the hand during rotation, making the device easier to adjust. The screw 7, the first connecting tube 2, and the third connecting tube 4 are all parallel to each other. The outer bushing 9 forms a lifting structure between the screw 7 and the third connecting tube 4. When the screw 7 rotates, it will drive the outer bushing 9 to slide on the third connecting tube 4, so as to adjust the spacing between two adjacent conductive plates and thus adjust the detection sensitivity of the device.
[0043] like Figures 2-6 As shown, in a preferred embodiment, based on the above method, the sealing assembly 12 further includes an opening 1203 and a moving groove 1204 formed on the third connecting pipe 4. A first sliding plate 1201 is slidably installed in the opening 1203. A second sliding plate 1202 is fixedly disposed between the first sliding plate 1201 and the first connecting plate 10. The height of the second sliding plate 1202 is more than twice the height of the opening 1203. The first conductive sheet 11 passes through the first sliding plate 1201 and the second sliding plate 1202. The opening 1203 and the moving groove 1204 ensure that when the first connecting plate 10 moves up and down, the first sliding plate 1201 and the second sliding plate 1202 always block the opening 1203, thus ensuring the overall sealing of the third connecting pipe 4.
[0044] Specifically, when using this high-performance leakage sensor: (e.g.) Figures 1-3As shown, when the device is placed in the container leakage detection area, when liquid flows onto the guide shroud 1, the hydrophobic layer 8 causes the liquid to flow into the connecting pipe formed by the first connecting pipe 2, the second connecting pipe 3, and the third connecting pipe 4. Since the first conductive sheet 11 and the second conductive sheet 15 do not contact each other, a small amount of liquid flowing into the second connecting pipe 3 will not trigger the alarm light 14 on the power supply 13, making it suitable for use in humid environments. The longitudinal ridges on the surface of the rotating block 6 are used to increase the friction with the hand during rotation, making the screw 7 easier to adjust. By rotating the screw 7, the outer bushing 9, guided by the second sliding plate 1202 and the moving groove 1204, drives the first connecting plate 10 and the first conductive sheet 11 to move vertically up and down, thereby adjusting the vertical distance between the first conductive sheet 11 and the second conductive sheet 15, so that the device can trigger the alarm light 14 to light up at different liquid levels.
[0045] like Figures 2-6 As shown, since the height of the second sliding plate 1202 is more than twice the height of the opening 1203, the first conductive piece 11 passes through the first sliding plate 1201 and the second sliding plate 1202. The opening 1203 and the moving groove 1204 ensure that the first sliding plate 1201 and the second sliding plate 1202 always block the opening 1203 when the first connecting plate 10 moves up and down. This ensures the overall sealing of the third connecting pipe 4 while changing the distance between the two conductive pieces. When the leakage of the container increases until the liquid in the first connecting pipe 2, the second connecting pipe 3 and the third connecting pipe 4 simultaneously submerges the first conductive piece 11 and the second conductive piece 15, a conductive path is formed between the first conductive piece 11 and the second conductive piece 15 by the leaked liquid. The current can then flow smoothly from the positive terminal of the power supply 13 through the alarm light 14, and then through the second conductive piece 15, the liquid medium, and the first conductive piece 11, finally returning to the negative terminal of the power supply 13. The current drives the alarm light 14 to start immediately, emitting an audible and visual alarm signal, thereby accurately indicating the occurrence of the leakage event and that the leakage amount has reached the preset critical threshold.
[0046] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, and all technical solutions and improvements that do not depart from the spirit and scope of the invention, are covered within the scope of the claims of the present utility model.
Claims
1. A high-performance leakage sensor, comprising a flow guide (1), characterized in that, A first connecting pipe (2) is fixedly connected to the bottom of the flow guide (1). A second connecting pipe (3) is fixedly connected to the first connecting pipe (2). A third connecting pipe (4) is installed on the second connecting pipe (3). A support block (5) is welded to the third connecting pipe (4). A screw (7) is rotatably connected to the support block (5). An outer bushing (9) is threaded to the outside of the screw (7). A first connecting plate (10) is installed on the outer bushing (9). A first conductive sheet (11) is provided on the first connecting plate (10). A sealing assembly (12) is installed on the third connecting pipe (4). A power supply (13) and an alarm light (14) are installed on the second connecting pipe (3). The positive terminal of the power supply (13) is connected to the positive terminal of the alarm light (14). The negative terminal of the alarm light (14) is connected to the second conductive sheet (15). The negative terminal of the power supply (13) is connected to the first conductive sheet (11).
2. The high-performance leakage sensor according to claim 1, characterized in that, The inner walls of the flow guide (1), the first connecting pipe (2), the second connecting pipe (3) and the third connecting pipe (4) are all provided with a hydrophobic layer (8), and the flow guide (1), the first connecting pipe (2), the second connecting pipe (3) and the third connecting pipe (4) are all interconnected.
3. The high-performance leakage sensor according to claim 1, characterized in that, The flow guide (1), the first connecting pipe (2), the second connecting pipe (3), the third connecting pipe (4) and the support block (5) are fixedly connected as an integral structure.
4. The high-performance leakage sensor according to claim 1, characterized in that, A bracket (16) is fixedly installed on the flow guide (1), and a support ring (19) is installed below the bracket (16).
5. A high-performance leakage sensor according to claim 4, characterized in that, A connecting plate (17) is fixedly installed on the first connecting pipe (2) and the third connecting pipe (4). A connecting column (18) is fixedly connected to the side of the connecting plate (17). The connecting column (18) is fixedly connected to the support ring (19).
6. A high-performance leakage sensor according to claim 3, characterized in that, The first connecting pipe (2) and the third connecting pipe (4) have the same inner diameter, and the inner diameter of the second connecting pipe (3) is smaller than the inner diameter of the first connecting pipe (2).
7. A high-performance leakage sensor according to claim 1, characterized in that, The top of the screw (7) is fixedly connected to a rotating block (6), and the surface of the rotating block (6) is provided with longitudinal ridges.
8. A high-performance leakage sensor according to claim 7, characterized in that, The screw (7), the first connecting pipe (2) and the third connecting pipe (4) are all parallel to each other, and the outer bushing (9) forms a lifting structure between the screw (7) and the third connecting pipe (4).
9. A high-performance leakage sensor according to claim 1, characterized in that, The sealing assembly (12) includes an opening (1203) and a moving groove (1204) on the third connecting pipe (4). A first sliding plate (1201) is slidably installed in the opening (1203), and a second sliding plate (1202) is fixedly disposed between the first sliding plate (1201) and the first connecting plate (10).
10. A high-performance leakage sensor according to claim 9, characterized in that, The height of the second slide plate (1202) is more than twice the height of the opening (1203), and the first conductive sheet (11) passes through the first slide plate (1201) and the second slide plate (1202).