Water leakage detection device

Abstract

The utility model provides a water leakage detection device, which relates to the technical field of pipeline water leakage detection and comprises a range finder and a water flow sensor used for being installed on a pipeline, the range finder is connected with the water flow sensor, the range finding direction of the range finder is parallel to the axis direction of a transverse pipe in the pipeline at the installation position, and the range finding range of the range finder is located below the transverse pipe. The distance measuring range coincides with the projection of the pipe section, located in the distance measuring direction, of the transverse pipe in the vertical direction, the water flow sensor is directly fixed to the transverse pipe or the vertical pipe, and the water flow sensor detects the installation position of the pipeline or the water leakage state above the installation area of the vertical pipe. The water leakage state of the transverse pipe in the distance measuring range can be detected through the distance measuring instrument, the water leakage state of the pipeline in one area can be detected only by arranging the water leakage detection device on the transverse pipe or the vertical pipe in one area, the installation process is simple and efficient, and a large amount of manpower and material resources are saved.

Description

Technical Field

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

[0002] After the water supply system at the construction site is installed, the water system may be damaged due to the complex on-site construction environment. If the water supply system is installed in a high-rise or super-high-rise building and leakage occurs, the water supply system includes a large number of horizontal pipes and vertical pipes, and the leakage point detection work becomes very difficult. The leakage detection method in the prior art is often a resistance detection method. For example, a dry water-absorbing material with NaCl crystals is placed between the resistance wire and the water pipe. When a certain point of the water pipe leaks, the NaCl crystals in the water-absorbing material dissolve, thereby forming a conductive salt bridge between the two parallel resistance wires at the leakage point, and the circuit is turned on. After that, according to the resistance law, the resistance of the resistance wire is proportional to the length, so the distance from the leakage point to the end point of the resistance wire can be obtained. However, the leakage detection device in the prior art must be provided with dry water-absorbing materials and wires along the horizontal pipes and vertical pipes. When the pipeline leaks, the dry water-absorbing materials and wires arranged on the horizontal pipes or vertical pipes react. However, there are many existing high-rise or super-high-rise pipelines, and the construction environment is complex. If water-absorbing materials and wires are installed on all horizontal pipes and vertical pipes, a lot of manpower and material resources will be consumed. Therefore, there is an urgent need to propose a water leakage detection device, which can detect water leakage in horizontal pipes or vertical pipes in a certain area without arranging NaCl crystals and wires along the horizontal pipes. The installation process is simple and efficient, saving a lot of manpower and material resources. Utility Model Content

[0003] The purpose of the utility model is to provide a water leakage detection device to solve the problems existing in the above-mentioned prior art. A water flow sensor and a rangefinder are arranged on the pipelines in an area. The water flow sensor is directly fixed on the horizontal pipe or the vertical pipe. The water flow sensor detects the installation position of the pipeline or the leakage state above the vertical pipe installation area. The rangefinder can detect the leakage state of the horizontal pipe within the distance measuring range. The water leakage detection device can be arranged only on the horizontal pipe or the vertical pipe in an area, so as to detect the leakage state of the pipeline in an area. There is no need to arrange NaCl crystals and wires along the horizontal pipe. The installation process is simple and efficient, saving a lot of manpower and material resources.

[0004] To achieve the above-mentioned purpose, the utility model provides the following scheme: a water leakage detection device is provided, comprising a rangefinder and a water flow sensor for installation on a pipeline, the rangefinder is connected to the water flow sensor, the ranging direction of the rangefinder is parallel to the axial direction of the transverse pipe in the pipeline at the installation location, the ranging range of the rangefinder is located below the transverse pipe, and the ranging range coincides with the vertical projection of the pipe section of the transverse pipe located in the ranging direction.

[0005] Preferably, the water flow sensor is connected to a guide plate for receiving the liquid flowing down the outer wall of the pipeline, and the guide plate has a flow outlet for directing the liquid toward the water flow sensor.

[0006] Preferably, the water flow sensor comprises a shell, and a water inlet hole is provided on the water-facing surface of the shell.

[0007] Preferably, the water flow sensor includes a water-swelling block and a circuit switch arranged in the shell, the circuit switch includes a metal spring and a wire, the water inlet hole is aligned with the water-swelling block, the metal spring includes a fixed end and a movable end, the fixed end is fixedly installed in the shell, the movable end is located between the water-swelling block and the wire, and the wire is located within the expansion range of the water-swelling block.

[0008] Preferably, the rangefinder is mounted on the outer wall of the shell.

[0009] Preferably, the rangefinder is mounted on the inner wall of the shell, the rangefinder is far away from the circuit switch, and the output head of the rangefinder protrudes from the shell.

[0010] Preferably, the rangefinder is detachably connected to the water flow sensor.

[0011] Preferably, a first magnet and a second magnet are provided on the water flow sensor and the rangefinder respectively.

[0012] Preferably, a power supply is provided in the housing, and the power supply is electrically connected to the circuit switch and the rangefinder.

[0013] Preferably, the water flow sensor is fixed on the vertical pipe through a pipe connector.

[0014] Compared with the prior art, the utility model has achieved the following technical effects:

[0015] The distance measuring range of the rangefinder of the water leakage detection device is parallel to the axial direction of the horizontal pipe and can fully cover the downward projection of the horizontal pipe. When the water leakage detection device is installed at the lower end of the horizontal pipe, when the installation position of the horizontal pipe and the water flow sensor leaks, the water will directly enter the water flow sensor, and the water flow sensor can send out leakage information. When the pipe wall of the horizontal pipe in the distance measuring area leaks, the water will drip linearly from the pipe wall at the lower end, and the rangefinder can measure the dripping water flow and send out the location information of the leak, so that the staff can quickly receive the location of the leak.

[0016] When the water leakage detection device is installed on the vertical pipe, if a horizontal pipe is arranged above the vertical pipe, the distance measurement range of the rangefinder also matches the horizontal pipe above. When the vertical pipe above the water leakage detection device or the installation position leaks, the water will flow into the water flow sensor and send out the vertical pipe leakage information. When the horizontal pipe above the vertical pipe leaks, the rangefinder arranged on the vertical pipe leakage detection device measures the distance of the water dripping on the horizontal pipe and sends out the location information of the leak.

[0017] The utility model arranges a water flow sensor and a distance meter that cooperate with each other on the pipeline. The water flow sensor is directly fixed on the horizontal pipe or the vertical pipe. The distance measuring range of the distance meter matches the horizontal pipe. Only the water leakage detection device can be arranged on the horizontal pipe or the vertical pipe to detect the water leakage status of the pipeline in an area. The installation process is simple and efficient, saving a lot of manpower and material resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 This is a schematic diagram of the overall structure of the utility model when it is installed on a transverse pipe;

[0020] Figure 2 This is a schematic diagram of the overall structure of the utility model when it is installed on a vertical pipe;

[0021] Figure 3 This is a schematic diagram of the installation position of the installation plate of the utility model;

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the utility model;

[0023] Figure 5 This is a schematic diagram of the internal structure of this practical water flow sensor.

[0024] in,

[0025] 1. Water flow sensor; 11. Water inlet hole; 12. Water expansion block; 13. Metal spring; 14. Wire; 15. Guide plate;

[0026] 2. Distance meter; 21. Output head;

[0027] 3. Horizontal pipe;

[0028] 4. Vertical pipe;

[0029] 5. Pipeline connectors;

[0030] 6. Water flow. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0033] Please refer to Figures 1 to 5 As shown, in this embodiment, a water leakage detection device is provided, including a water flow sensor 1 and a rangefinder 2, the water flow sensor 1 is installed on a pipeline, and the rangefinder 2 is connected to the water flow sensor 1. The pipeline includes a transverse pipe 3, the distance measurement direction of the rangefinder 2 is parallel to the axial direction of the transverse pipe 3 at the installation location, and the rangefinder 2 and the water flow sensor 1 are directly installed below the transverse pipe 3, the distance measurement range of the rangefinder 2 is also located below the transverse pipe 3, and the downward projection of the transverse pipe 3 in the distance measurement direction can overlap with the distance measurement range of the rangefinder 2.

[0034] Working principle: A transverse pipe 3 and a vertical pipe 4 are arranged in an area. When the water leakage detection device is installed on the transverse pipe 3, it is preferred to install a water flow sensor 1 on the bottom surface of the end of the transverse pipe 3, and the rangefinder 2 is installed on the water flow sensor 1. The ranging range of the rangefinder 2 is limited to be parallel to the axial direction of the transverse pipe 3, and can fully cover the downward projection of the transverse pipe 3. When the installation position of the transverse pipe 3 and the water flow sensor 1 leaks, the water flow will directly enter the water flow sensor 1, and the water flow sensor 1 can send out leakage information. When the wall of the transverse pipe 3 in the ranging area of ​​the rangefinder 2 leaks, the liquid will flow down along the outer wall of the transverse pipe 3, and drip linearly from the wall at the lower end to form a water flow 6. The rangefinder 2 can measure the dripping water flow 6 and send out the location information of the leak, so that the staff can quickly receive the leak location.

[0035] When the water leakage detection device is installed on the vertical pipe 4, the water flow sensor 1 is directly installed on the vertical pipe 4, preferably located at the bottom of the vertical pipe 4. If a horizontal pipe 3 is also arranged above the vertical pipe 4, the distance measurement range of the rangefinder 2 is also parallel to the axial direction of the horizontal pipe 3, and can fully cover the downward projection of the horizontal pipe 3. When the vertical pipe 4 above the water leakage detection device leaks, the liquid will flow into the water flow sensor 1 along the outer wall of the vertical pipe 4, and the water flow sensor 1 will send out the water leakage information of the vertical pipe 4. At the same time, when the installation position of the water leakage detection device leaks, the liquid will directly enter the water flow sensor 1 and send out the water leakage information. Of course, multiple water leakage detection devices can be set on the vertical pipe 4. The water leakage detection devices are located on the same horizontal plane and arranged around the circumference of the vertical pipe 4. They are preferably located at the bottom of the vertical pipe 4. By arranging multiple water leakage detection devices, the water leakage status of each circumferential area of ​​the vertical pipe 4 can be detected.

[0036] Furthermore, when the horizontal pipe 3 above the vertical pipe 4 leaks, the water flow 6 drips linearly from the pipe wall at the lower end of the horizontal pipe 3, and the distance meter 2 measures the distance of the water flow 6 dripping on the horizontal pipe 3, and sends out the location information of the leak. The utility model arranges a water flow sensor 1 and a distance meter 2 that cooperate with each other on the pipeline, the water flow sensor 1 is directly fixed on the horizontal pipe 3 or the vertical pipe 4, and the distance measurement range of the distance meter 2 matches the horizontal pipe 3. It is only necessary to arrange a water leakage detection device on the horizontal pipe 3 or the vertical pipe 4, so as to detect the water leakage state of the pipeline in an area.

[0037] The rangefinder 2 has an output head 21, which sends out signals for distance measurement, wherein the output head 21 can be an external convex output head or an internally embedded output head. The rangefinder 2 is preferably an infrared rangefinder.

[0038] In one embodiment, a guide plate 15 is provided on the water flow sensor 1. The guide plate 15 is used to receive the liquid flowing down from the pipeline along its outer wall. A flow outlet is provided on the guide plate 15 to guide the liquid to the water flow sensor 1 through the flow outlet. Preferably, the guide plate 15 is in a circular shape. When the water flow sensor 1 is installed on the vertical pipe 4, the guide plate 15 is tightly mounted on the vertical pipe 4. The liquid flowing down from the vertical pipe 4 can enter the guide plate 15 and be guided to the water flow sensor 1, so that the water flow sensor 1 can effectively detect the water leakage status of all outer walls on the vertical pipe 4.

[0039] In one embodiment, Figures 1 to 5 As shown, the water flow sensor 1 includes a housing, and a water inlet hole 11 is arranged on the water-facing surface of the housing, and water can enter the interior of the housing through the water inlet hole 11. Preferably, the housing is a rectangular body, and the water inlet holes 11 are arranged on the side and bottom of the housing, and the rangefinder 2 is installed on the top surface of the housing.

[0040] In this embodiment, if Figures 1 to 5As shown, a water-expanding block 12 and a circuit switch are arranged in the shell, and the circuit switch includes a metal spring 13 and a wire 14. The water inlet 11 is aligned with the water-expanding block 12, and the metal spring 13 includes a fixed end and a movable end, the fixed end is fixedly connected to the inner wall of the shell, the movable end is located between the water-expanding block 12 and the wire 14, and the wire 14 is located within the expansion range of the water-expanding block 12. When liquid enters the shell from the water inlet 11 and flows into the water-expanding block 12, the water-expanding block 12 expands and squeezes the movable end of the metal spring 13, so that the movable end of the metal spring 13 moves toward the wire 14 until the metal spring 13 abuts against the wire 14, so that the wire 14 is connected, and the water leakage information is sent out through the wire 14; at the same time, the water flow sensor 1 can also be an electromagnetic water flow sensor, a mechanical water flow sensor, an ultrasonic water flow sensor, or a radar wave water flow sensor, and the structure and working principle of the water flow sensor 1 are prior art.

[0041] In this embodiment, if Figures 1 to 5 As shown, the rangefinder 2 is located outside the shell, and the rangefinder 2 is installed on the outer wall of the shell, preferably on the top surface of the shell. Specifically, each non-output interface of the rangefinder 2 can be fixed on the rangefinder 2, and the orientation of the rangefinder 2 relative to the output port of the shell can be adjusted according to actual usage. For example, when the shell of the water flow sensor 1 is fixed on the horizontal pipe 3, the ranging range of the rangefinder 2 is parallel to the mounting surface of the shell on the horizontal pipe 3, and when the water flow sensor 1 is fixed on the vertical pipe 4, the ranging range of the rangefinder 2 is perpendicular to the mounting surface of the shell on the vertical pipe 4.

[0042] In this embodiment, if Figures 1 to 5 As shown, the rangefinder 2 is installed on the inner wall of the shell, the rangefinder 2 is far away from the circuit switch, the output head of the rangefinder 2 protrudes from the shell, and the direction of the output head of the rangefinder 2 can also be adjusted according to actual conditions.

[0043] In one embodiment, Figures 1 to 5 As shown, the rangefinder 2 is detachably connected to the water flow sensor 1.

[0044] In this embodiment, if Figures 1 to 5 As shown, a first magnet is installed on the water flow sensor 1, and a second magnet is installed on the rangefinder 2. The water flow sensor 1 and the rangefinder 2 are connected via the magnets. The water flow sensor 1 and the rangefinder 2 are detachably connected. Meanwhile, the water flow sensor 1 and the rangefinder 2 can also be connected by snapping.

[0045] In one embodiment, Figures 1 to 5 As shown, a power supply is provided in the shell, and the power supply is electrically connected to the circuit switch and the rangefinder 2 respectively, that is, the water flow sensor 1 and the rangefinder 2 share a power supply. Of course, the water flow sensor 1 and the rangefinder 2 can also be provided with separate power supplies.

[0046] In one embodiment, Figures 1 to 5 As shown, the water flow sensor 1 is fixedly connected to the pipeline via a pipeline connector 5, wherein the pipeline connector 5 may be a flange or a clamp.

[0047] It should be noted that it is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numerals in the claims should not be regarded as limiting the claims involved.

[0048] The present invention uses specific examples to illustrate the principle and implementation of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A water leakage detection device, characterized in that: It includes a distance meter and a water flow sensor for installation on a pipeline, the distance meter is connected to the water flow sensor, the distance measuring direction of the distance meter is parallel to the axial direction of the transverse pipe in the pipeline at the installation location, the distance measuring range of the distance meter is located below the transverse pipe, and the distance measuring range coincides with the vertical projection of the pipe section of the transverse pipe located in the distance measuring direction.

2. The water leakage detection device according to claim 1, characterized in that: The water flow sensor is connected to a guide plate for receiving the liquid flowing down the outer wall of the pipeline, and the guide plate has an outflow port for guiding the liquid toward the water flow sensor.

3. The water leakage detection device according to claim 1, characterized in that: The water flow sensor comprises a shell, and a water inlet hole is arranged on the water-facing surface of the shell.

4. The water leakage detection device according to claim 3, characterized in that: The water flow sensor includes a water-swelling block and a circuit switch arranged in the shell, the circuit switch includes a metal spring and a wire, the water inlet hole is aligned with the water-swelling block, the metal spring includes a fixed end and a movable end, the fixed end is fixedly installed in the shell, the movable end is located between the water-swelling block and the wire, and the wire is located within the expansion range of the water-swelling block.

5. The water leakage detection device according to claim 4, characterized in that: The rangefinder is mounted on the outer wall of the shell.

6. The water leakage detection device according to claim 4, characterized in that: The distance meter is installed on the inner wall of the shell, the distance meter is far away from the circuit switch, and the output head of the distance meter protrudes from the shell.

7. The water leakage detection device according to claim 1, characterized in that: The rangefinder is detachably connected to the water flow sensor.

8. The water leakage detection device according to claim 7, characterized in that: A first magnet and a second magnet are correspondingly arranged on the water flow sensor and the distance meter.

9. The water leakage detection device according to claim 6, characterized in that: A power source is arranged in the shell, and the power source is electrically connected to the circuit switch and the rangefinder.

10. The water leakage detection device according to claim 1, characterized in that: The water flow sensor is directly installed on the vertical pipe and is located at the bottom of the vertical pipe. The vertical pipe is also connected to the horizontal pipe above. The ranging range of the rangefinder is also parallel to the axial direction of the horizontal pipe and can fully cover the downward projection of the horizontal pipe. The water flow sensor is fixed on the vertical pipe through a pipe connector.

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