Water leakage detector

Abstract

The utility model provides a water leakage detector. The water leakage detector comprises a shell and an inductive probe arranged in the shell, a flow gathering piece is connected in the shell, a flow channel which spirally extends downwards is arranged in the flow gathering piece, the flow channel is used for gathering water drops flowing into the shell and enabling the water drops to flow out downwards along the flow channel, and the sensing end of the sensing probe is arranged at the lower end of the flow channel and used for sensing whether water flows through or not. The flow gathering piece is arranged in the shell, when water drops flow into the shell, the water drops are gathered on the flow channel in the flow gathering piece and slowly and spirally flow out downwards along the flow channel, the sensing probe arranged at the lower end of the flow channel can sense that water flows through, and therefore a user is reminded of the water leakage condition; according to the device, through convergence of the flow channel in the flow gathering piece, even a tiny water leakage condition can be accurately detected, and the detection sensitivity is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of water leakage detection equipment, in particular to a water leakage detector. Background Art

[0002] In the water pipes of gas water heaters, if water leakage or overflow cannot be discovered or detected in time, it will not only waste water resources, but may also cause water accumulation in the room or the equipment to malfunction, or even cause equipment damage. Therefore, timely detection of water leakage is necessary.

[0003] Existing detectors for detecting water leakage usually include a housing and a sensing probe. The pipeline of the gas water heater is connected to the housing, and the sensing probe is arranged inside the housing to detect whether water flows through, thereby determining whether a water leakage occurs. This detector has a simple structure and is easy to use, but can only detect a certain degree of water leakage. For some minor water leakage, the sensing probe is difficult to detect accurately and has a low sensitivity. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a water leakage detector which can accurately detect whether there is water leakage.

[0005] The technical solution of the utility model is to provide a water leakage detector with the following structure:

[0006] It includes a shell and a sensing probe arranged in the shell; the shell is connected to a flow concentrator, and the flow concentrator is provided with a flow channel extending spirally downward. The flow channel is used to converge water droplets flowing into the shell and flow out downward along the flow channel. The sensing end of the sensing probe is arranged at the lower end of the flow channel to sense whether water is flowing.

[0007] After adopting the above structure, the water leakage detector of the utility model has the following advantages compared with the prior art:

[0008] The utility model arranges a flow converging piece in the shell. When water droplets flow into the shell, they converge on the flow channel in the flow converging piece and slowly flow out in a spiral downward along the flow channel. The sensing probe arranged at the lower end of the flow channel can sense the water flowing through, thereby notifying the user of the water leakage. The device can accurately detect even the smallest water leakage through the convergence of the flow channel in the flow converging piece, and the detection sensitivity is higher.

[0009] Preferably, the flow focusing element includes a cylinder and a central axis arranged in the cylinder, and the cylinder and the central axis are coaxially arranged; a guide plate extending spirally downward is provided between the cylinder and the central axis, the inner end of the guide plate is connected to the central axis, and the outer end is connected to the inner wall of the cylinder, and the cylinder, the central axis and the guide plate enclose to form the flow channel.

[0010] Preferably, the height of the guide plate gradually decreases from the inner end to the outer end, and the sensing probe is arranged near the outer end of the guide plate, so that the converged water flow can flow down along the lower outer end of the guide plate and pass through the sensing probe, thereby making the sensing probe more accurate in detection.

[0011] Preferably, there are two flow focusing pieces, namely an upper flow focusing piece and a lower flow focusing piece, and the upper flow focusing piece and the lower flow focusing piece are sequentially arranged in the shell from top to bottom.

[0012] Preferably, the upper end of the outer side wall of the shell is provided with an inwardly concave groove, and the inner side wall of the shell forms a first guide ridge, and the first guide ridge extends downward along the height direction of the shell; the outer side wall of the upper flow focusing piece is provided with a first guide groove running through the upper and lower end faces thereof, and the first guide ridge slides in cooperation with the first guide groove; the lower end of the inner side wall of the shell is provided with a second guide groove extending upward along its height direction, and the outer side wall of the lower flow focusing piece is provided with a second guide ridge extending along its height direction, and the second guide ridge slides in cooperation with the second guide groove.

[0013] Through the cooperation of the first guide ridge and the first guide groove, the upper flow focusing piece can be guided so that it can be accurately assembled into the shell; through the cooperation of the second guide ridge and the second guide groove, the lower flow focusing piece can be guided so that it can be accurately assembled into the shell.

[0014] Preferably, a convex ring is provided in the shell, the lower end surface of the upper flow focusing piece abuts against the upper end surface of the convex ring, and the upper end surface of the lower flow focusing piece abuts against the lower end surface of the convex ring.

[0015] The convex ring can play a role in positioning the upper flow focusing piece and the lower flow focusing piece, and can also play a role in supporting the upper flow focusing piece.

[0016] Preferably, the sensing probe is arranged in the groove, and the sensing end of the sensing probe is connected to two copper pillars extending downward into the lower flow concentrator to detect whether water flows through. When water flows through the two copper pillars, the resistance between the two copper pillars will change. By detecting the resistance between the two copper pillars, it is possible to accurately determine whether water flows through, and further determine whether there is a water leak.

[0017] Preferably, a top cover is connected to the top of the shell, and a plurality of through holes for connecting water supply pipes are provided on the top cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model.

[0019] Figure 2 It is a half-section view of the utility model.

[0020] Figure 3 It is an exploded view of the utility model.

[0021] Figure 4 It is a cross-sectional view of the shell in the utility model.

[0022] Figure 5 It is a schematic structural diagram of the upper flow concentrator and the lower flow concentrator in the utility model.

[0023] Description of reference numerals:

[0024] 1. Shell, 11. Groove, 12. First guide ridge, 13. Second guide groove, 14. Convex ring, 2. Induction probe, 21. Copper column, 3. Flow focusing piece, 31. Cylinder, 32. Center axis, 33. Guide plate, 34. Upper flow focusing piece, 341. First guide groove, 35. Lower flow focusing piece, 351. Second guide ridge, 4. Top cover, 41. Through hole. DETAILED DESCRIPTION

[0025] The utility model is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. At the same time, the terms "first", "second" and the like are only used to distinguish the names of the components, and do not have a primary and secondary relationship, and therefore cannot be understood as a limitation on the present invention.

[0027] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown;

[0028] The utility model discloses a water leakage detector, which comprises a shell 1 and a sensing probe 2 arranged in the shell 1; a flow converging piece 3 is connected in the shell 1, and a flow channel extending downward in a spiral is arranged in the flow converging piece 3, which is used for converging water droplets flowing into the shell 1 and making the converged water droplets flow out downward along the flow channel; a sensing end of the sensing probe 2 is arranged at the lower end of the flow channel, and is used for sensing whether water flows through.

[0029] The utility model arranges a flow converging member 3 in the shell 1. When water drops flow into the shell 1, they converge on the flow channel in the flow converging member 3 and slowly flow out in a spiral downward along the flow channel. The sensing probe 2 arranged at the lower end of the flow channel can sense the water flowing through, thereby notifying the user of the water leakage. The device can detect even the smallest water leakage through the convergence of the flow channel in the flow converging member 3, and the detection sensitivity is higher.

[0030] The flow focusing element 3 includes a cylinder 31 and a central axis 32 arranged in the cylinder 31, and the cylinder 31 and the central axis 32 are arranged coaxially; a guide plate 33 extending spirally downward is provided between the cylinder 31 and the central axis 32, and the inner end of the guide plate 33 is connected to the central axis 32, and the outer end is connected to the inner wall of the cylinder 31, and the cylinder 31, the central axis 32 and the guide plate 33 enclose the above-mentioned flow channel.

[0031] The height of the guide plate 33 gradually decreases from the inner end to the outer end, and the sensing probe 2 is set at a position close to the outer end of the guide plate 33, so that the converged water flow can flow down along the lower outer end of the guide plate 33 and pass through the sensing probe 2, thereby making the detection of the sensing probe 2 more accurate.

[0032] There are two flow focusing members 3, namely an upper flow focusing member 34 and a lower flow focusing member 35, which are arranged in the housing 1 from top to bottom. The upper flow focusing member 34 and the lower flow focusing member 35 have similar structures, and both include a cylinder 31, a central shaft 32 and a guide plate 33.

[0033] An inwardly concave groove 11 is provided at the upper end of the outer side wall of the shell 1, and a first guide ridge 12 is formed on the inner side wall of the shell 1, and the first guide ridge 12 extends downward along the height direction of the shell 1; a first guide groove 341 is provided on the outer side wall of the upper flow focusing member 34, which runs through the upper and lower end surfaces thereof, and the first guide ridge 12 is slidably fitted with the first guide groove 341; a second guide groove 13 is provided on the lower end of the inner side wall of the shell 1, which extends upward along the height direction thereof, and a second guide ridge 351 is provided on the outer side wall of the lower flow focusing member 35, which extends along the height direction thereof, and the second guide ridge 351 is slidably fitted in the second guide groove 13.

[0034] Through the cooperation between the first guide ridge 12 and the first guide groove 341, the upper flow focusing piece 34 can be guided so that the upper flow focusing piece 34 can be accurately assembled into the shell 1; through the cooperation between the second guide ridge 351 and the second guide groove 13, the lower flow focusing piece 35 can be guided so that the lower flow focusing piece 35 can be accurately assembled into the shell 1.

[0035] A convex ring 14 is provided in the shell 1, and the lower end surface of the upper flow focusing piece 34 abuts against the upper end surface of the convex ring 14, and the upper end surface of the lower flow focusing piece 35 abuts against the lower end surface of the convex ring 14. The induction probe 2 is arranged in the groove 11, and the induction end of the induction probe 2 is connected to two copper pillars 21 extending downward into the lower flow focusing piece, which are used to detect whether there is water flowing through. When water passes through the two copper pillars 21, the resistance between the two copper pillars 21 will change. By detecting the resistance between the two copper pillars 21, it can be accurately determined whether there is water flowing through, and then whether there is a water leak. The center distance of the copper pillar 21 can be set to 7mm, and the material is nickel silver, and the cross section of the copper pillar 21 should be flat.

[0036] The convex ring 14 can play a role in positioning the upper flow focusing piece 34 and the lower flow focusing piece 35 , and can also play a role in supporting the upper flow focusing piece 34 .

[0037] A top cover 4 is connected to the top of the shell 1 , and the top cover 4 is provided with three through holes 41 for connecting water pipes on the gas water heater.

[0038] The above description is only a specific implementation method of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A water leakage detector, comprising a housing (1) and a sensing probe (2) arranged in the housing (1); characterized in that: A flow converging member (3) is connected to the shell (1), and a flow channel extending spirally downward is provided in the flow converging member (3). The flow channel is used to converge water droplets flowing into the shell (1) and allow them to flow downward along the flow channel. The sensing end of the sensing probe (2) is arranged at the lower end of the flow channel to sense whether water is flowing.

2. The water leakage detector according to claim 1, characterized in that: The flow concentrating member (3) comprises a cylinder (31) and a central axis (32) arranged in the cylinder (31), wherein the cylinder (31) and the central axis (32) are arranged coaxially; a flow guide plate (33) extending spirally downward is arranged between the cylinder (31) and the central axis (32), wherein the inner end of the flow guide plate (33) is connected to the central axis (32), and the outer end is connected to the inner wall of the cylinder (31), and the cylinder (31), the central axis (32) and the flow guide plate (33) enclose the flow channel.

3. The water leakage detector according to claim 2, characterized in that: The height of the guide plate (33) gradually decreases from the inner end to the outer end, and the sensing probe (2) is arranged at a position close to the outer end of the guide plate (33).

4. The water leakage detector according to claim 3, characterized in that: There are two flow focusing pieces (3), namely an upper flow focusing piece (34) and a lower flow focusing piece (35), and the upper flow focusing piece (34) and the lower flow focusing piece (35) are arranged in sequence from top to bottom in the housing (1).

5. The water leakage detector according to claim 4, characterized in that: The upper end of the outer wall of the shell (1) is provided with an inwardly concave groove (11), and the inner wall of the shell (1) forms a first guide ridge (12), and the first guide ridge (12) extends downward along the height direction of the shell (1); the outer wall of the upper flow concentrator (34) is provided with a first guide groove (341) penetrating the upper and lower end surfaces thereof, and the first guide ridge (12) is slidably engaged with the first guide groove (341); the lower end of the inner wall of the shell (1) is provided with a second guide groove (13) extending upward along the height direction thereof, and the outer wall of the lower flow concentrator (35) is provided with a second guide ridge (351) extending along the height direction thereof, and the second guide ridge (351) is slidably engaged in the second guide groove (13).

6. The water leakage detector according to claim 5, characterized in that: A convex ring (14) is provided in the shell (1), the lower end surface of the upper flow focusing member (34) abuts against the upper end surface of the convex ring (14), and the upper end surface of the lower flow focusing member (35) abuts against the lower end surface of the convex ring (14).

7. The water leakage detector according to claim 5, characterized in that: The sensing probe (2) is arranged in the groove (11), and the sensing end of the sensing probe (2) is connected to two copper pillars (21) extending downward into the lower flow concentrator (35) for detecting whether water is flowing through.

8. The water leakage detector according to claim 1, characterized in that: A top cover (4) is connected to the top of the shell (1), and a plurality of through holes (41) for connecting water supply pipes are provided on the top cover (4).

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