A quick-positioning intelligent water pipe leak detector and leak detection method thereof

Abstract

The present invention relates to the field of leak detectors, and in particular to a fast-positioning intelligent water pipe leak detector and a leak detection method thereof. The present invention provides a fast-positioning intelligent water pipe leak detector, comprising: an equipment body, a pressurizing part arranged on the top of the equipment body, and a leak detection part arranged in the equipment body; the equipment body is suitable for connecting with a water pipe; the pressurizing part is suitable for pressurizing the water pipe; the leak detection part is suitable for telescoping along the length direction; wherein when there is no leakage in the water pipe, the pressure in the water pipe remains unchanged after the pressurizing part pressurizes the water pipe; when the water pipe leaks, the pressure in the water pipe decreases rapidly after the pressurizing part pressurizes the water pipe, and the leak detection part slides along the inside of the water pipe until it reaches the leak. The pressurized leak detection device and the leak detection device are integrated into one device for easy carrying. The water flow change at the leaking point in the water pipe is reflected by the collision between the leak detection target seat and the leak detection bait block. The position of the leak detection bait block is quickly located by a signal transmitter and a signal receiver.

Description

Technical Field

[0001] The invention relates to the field of leak detectors, and in particular to a fast-positioning intelligent water pipe leak detector and a leak detection method thereof. Background Art

[0002] Leak detectors are widely used in urban water supply, oil and gas underground metal pipeline locating instruments, underground communications, electricity, cable fault locating instruments and underground pipeline leakage locating instruments. They also undertake underground pipeline network surveying and leakage detection projects, and are especially used to test the sealing of water media.

[0003] The leak detectors in the prior art are usually complex devices, which are not only inconvenient to carry, but also usually require two different instruments for leak detection and leak detection, and the overall leak detection steps are also relatively complicated. For operators with low proficiency, the leak detection time is too long. Therefore, it is necessary to design a smart water pipe leak detector with fast positioning. Summary of the invention

[0004] The purpose of the present invention is to provide a fast-positioning intelligent water pipe leak detector and a leak detection method thereof to solve the above-mentioned problems.

[0005] In order to achieve the above-mentioned object, the present invention provides a quick-positioning intelligent water pipe leak detector, comprising: a device body, a pressurizing part arranged on the top of the device body, and a leak detection part arranged in the device body;

[0006] The device body is suitable for connecting to a water pipe;

[0007] The pressurizing part is suitable for pressurizing the water pipe;

[0008] The leak detection part is suitable for stretching along the length direction; wherein

[0009] When there is no leakage in the water pipe, after the pressurizing part pressurizes the water pipe, the pressure in the water pipe remains unchanged;

[0010] When the water pipe leaks, after the pressurizing part pressurizes the water pipe, the pressure in the water pipe decreases rapidly, and the leak detection part slides along the inside of the water pipe until it reaches the leaking part.

[0011] Furthermore, the leak detection unit includes a leak detection head, a push tube and a retractable roller, the retractable roller is rotatably arranged in the device body, the leak detection head is arranged on one side of the device body, and the push tube is arranged between the leak detection head and the retractable roller;

[0012] One end of the push tube is connected to the retractable roller, and the other end is connected to the leak detection head, and the push tube is in contact with the device body;

[0013] The leak detection head is suitable for detecting leaks in water pipes; wherein

[0014] When the water pipe leaks, the retracting roller unwinds the pushing tube, and the pushing tube pushes the leak detection head to move along the water pipe until the leak detection head reaches the leaking part of the water pipe.

[0015] Furthermore, a connection port is provided on one side of the device body, and the connection port is suitable for connecting to a water pipe;

[0016] The leak detection head is inserted into the connection port.

[0017] Furthermore, the leak detection head includes a positioning seat, a mounting frame arranged on one side of the positioning seat, and a leak detection assembly arranged on the mounting frame;

[0018] The positioning seat is connected to the pushing tube;

[0019] The mounting frame is coaxially arranged with the positioning seat;

[0020] The leak detection assembly is suitable for swinging along the axial direction of the mounting frame.

[0021] Further, the leak detection assembly includes a leak detection target seat and a leak detection bait block;

[0022] A positioning plate is arranged inside the mounting frame, and the leak detection target seat is arranged on a side of the positioning plate facing the leak detection bait block;

[0023] The leak detection bait block is spaced apart from the leak detection assembly, and the leak detection bait block is circumferentially connected with a plurality of elastic members, and the other end of the elastic member is connected to the mounting frame; wherein

[0024] When the leak detection bait block is located at the leaking position of the water pipe, water in the water pipe impacts the leak detection bait block, so that the leak detection bait block hits the leak detection target seat.

[0025] Furthermore, a pressure-sensitive sensor is arranged on the leak detection target seat, and a signal transmitter is arranged on the leak detection bait block.

[0026] Furthermore, an air inlet channel, a pressurizing channel and an air charging channel are provided in the body of the device, and the air inlet channel, the pressurizing channel and the air charging channel are all connected;

[0027] A gas charging port is provided on one side of the device body away from the connecting port, and the gas charging channel is connected to the gas charging port;

[0028] The air inlet passage is connected to the connecting port;

[0029] One end of the pressurizing part is inserted into the pressurizing channel and is sealed with the pressurizing channel;

[0030] A first one-way valve is arranged in the air intake passage, and a second one-way valve is arranged in the air charging passage.

[0031] Further, the pressurizing part includes a pressurizing piston, a joystick and an adjusting rod;

[0032] The pressurizing piston is slidably disposed in the pressurizing channel;

[0033] One end of the joystick is hinged to the top of the device body, and the joystick is provided with an adjustment slot along the length direction;

[0034] One end of the adjusting rod is slidably arranged in the adjusting groove, and the other end of the adjusting rod is connected to the pressurizing piston.

[0035] Furthermore, two retractable wheels are mirror-imaged on both sides of the connection port, the push tube is arranged between the two retractable wheels, and the push tube abuts against the retractable wheels.

[0036] In addition, the present invention also provides a leak detection method, including the leak detector as described above, S1: the joystick pushes the pressurizing piston, the pressurizing piston pushes the gas in the pressurizing channel into the air inlet channel, and enters the water pipe through the air inlet channel through the connecting port;

[0037] When the pressure in the water pipe remains constant, there is no leakage in the water pipe;

[0038] When the pressure in the water pipe decreases, execute S2;

[0039] S2, the retracting wheel and the retracting roller cooperate to drive the push tube to unwind outward, and the push tube pushes the leak detection head into the water pipe;

[0040] S3. Track the position of the leak detection bait block through the signal receiver and record the frequency change of the pressure sensitive sensor on the leak detection target.

[0041] Compared with the prior art, the present invention has the following beneficial effects: 1. The pressurized leak detection device and the leak detection device are integrated into one device, which is convenient to carry. 2. The water flow change at the leaking part of the water pipe is reflected by the collision between the leak detection target seat and the leak detection bait block. 3. The position of the leak detection bait block is quickly located by the signal transmitter and the signal receiver. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0043] Figure 1 A three-dimensional diagram of a quick-positioning intelligent water pipe leak detector of the present invention is shown;

[0044] Figure 2 A cross-sectional view of the device body of the present invention is shown;

[0045] Figure 3 A perspective view of a leak detection head of the present invention is shown;

[0046] Figure 4 A perspective view of a leak detection assembly of the present invention is shown;

[0047] Figure 5 A perspective view of the retractable wheel of the present invention is shown.

[0048] In the figure:

[0049] 1. Equipment body; 11. Connection port; 12. Air inlet channel; 13. Pressurization channel; 14. Inflating channel; 15. First one-way valve; 16. Second one-way valve; 17. Retractable wheel; 18. Inflating port;

[0050] 2. Pressurizing part; 21. Pressurizing piston; 22. Operating lever; 221. Adjusting groove; 23. Adjusting rod;

[0051] 3. Leak detection part; 31. Leak detection head; 311. Positioning seat; 312. Mounting frame; 313. Leak detection assembly; 3131. Leak detection target seat; 3132. Leak detection bait block; 314. Positioning plate; 315. Elastic member;

[0052] 32. Push tube; 33. Retracting roller. DETAILED DESCRIPTION

[0053] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0054] Embodiment 1, as Figures 1 to 5 As shown, the present invention provides a quick-positioning intelligent water pipe leak detector, comprising: a device body 1, a pressurizing part 2 and a leak detection part 3. The device body 1 is suitable for installing the pressurizing part 2 and the leak detection part 3, and the device body 1 is suitable for connecting with one end of a water pipe. The pressurizing part 2 is suitable for pressurizing the inside of the water pipe. The leak detection part 3 is suitable for detecting water leaks in the water pipe. The above components are described in detail below.

[0055] The device body 1 is rectangular in shape as a whole, and is suitable for installing a pressurizing part 2 and a leak detection part 3. The device body 1 is suitable for connecting with one end of a water pipe. After the connection is completed, the device body 1 and the water pipe form a sealed space, and the pressurizing part 2 can pressurize the water pipe through the device body 1.

[0056] The structure of the device body 1 is described in detail below. The device body 1 includes a connecting port 11 and an air charging port 18. The connecting port 11 and the air charging port 18 are arranged on two separate side walls of the device body 1. The connecting port 11 is suitable for connecting to a water pipe, and the air charging port 18 is left unconnected. An air intake channel 12, a pressurizing channel 13 and an air charging channel 14 are provided in the device body 1. The air intake channel 12, the pressurizing channel 13 and the air charging channel 14 are all connected. The connecting port 11 is connected to the air intake channel 12, and the air charging port 18 is connected to the air charging channel 14. One end of the pressurizing part 2 is inserted into the pressurizing channel 13 and is sealed with the pressurizing channel 13. A first one-way valve 15 is provided in the air intake channel 12, and a second one-way valve 16 is provided in the air charging channel 14. Through the above arrangement, when the pressurizing part 2 compresses the gas in the pressurizing channel 13, since the second one-way valve 16 cannot pass through, the gas can only pass through the first one-way valve 15. After passing through the first one-way valve 15, the gas enters the connecting port 11 and enters the water pipe through the connecting port 11. When the pressurizing part 2 retracts, since the first one-way valve 15 cannot pass through, the gas that has entered the first one-way valve 15 will not flow back, and the inflation port 18 absorbs the external gas and replenishes it into the inflation channel 14 through the second one-way valve 16, that is, replenishes it into the pressurizing channel 13. This reciprocating process can achieve the effect of gradually pressurizing the water pipe. It should be noted here that when the water pipe is not leaking, gas is added to the water pipe, and the overall air pressure in the water pipe will remain stable. When the water pipe is leaking, gas is added to the water pipe, and the air pressure in the water pipe will drop rapidly.

[0057] The pressurizing part 2 is arranged on the top of the equipment body 1. The pressurizing part 2 is suitable for reciprocating to compress the gas in the pressurizing channel 13 to pass through the first one-way valve 15, and control the inflation port 18 to inflate the inside.

[0058] The structure of the pressurizing part 2 is described in detail below. The pressurizing part 2 includes a pressurizing piston 21, an operating rod 22 and an adjusting rod 23. The pressurizing piston 21 is slidably arranged in the pressurizing channel 13, and a layer of rubber ring is arranged on the outside of the pressurizing piston 21 so that the pressurizing piston 21 can maintain a state of being completely in contact with the inner wall of the pressurizing channel 13, that is, to achieve sealing with the pressurizing channel 13. One end of the operating rod 22 is hinged to the top of the device body 1, and the operating rod 22 is provided with an adjusting groove 221 along the length direction. One end of the adjusting rod 23 is slidably arranged in the adjusting groove 221, and the other end of the adjusting rod 23 is connected to the pressurizing piston 21. Through the above arrangement, the operator can control the end of the operating rod 22 away from the hinge to swing back and forth up and down, so as to drive the pressurizing piston 21 to slide cyclically along the length direction of the pressurizing channel 13 through the adjusting rod 23.

[0059] The leak detection part 3 is arranged in the device body 1, and the leak detection part 3 is suitable for stretching along the length direction. Specifically, when the connection port 11 is connected to the water pipe, and the pressurizing part 2 detects a leak in the water pipe, the leak detection part 3 can extend into the water pipe and continuously extend along the length direction of the water pipe until the leak detection part 3 reaches the leak, thereby realizing the detection function of the leak in the water pipe.

[0060] In order to achieve the above effect, the leak detection part 3 includes a leak detection head 31, a push tube 32 and a retracting roller 33. The retracting roller 33 is rotatably arranged in the device body 1, the leak detection head 31 is arranged on one side of the device body 1, and the push tube 32 is arranged between the leak detection head 31 and the retracting roller 33. One end of the push tube 32 is connected to the retracting roller 33, and the other end is connected to the leak detection head 31, and the push tube 32 is in contact with the device body 1. The leak detection head 31 is suitable for detecting the leak of the water pipe. Through the above arrangement, when the water pipe leaks, the retracting roller 33 unwinds the push tube 32, and the push tube 32 pushes the leak detection head 31 to move along the water pipe until the leak detection head 31 reaches the leak of the water pipe. In order to provide power to the retracting roller 33, the retracting roller 33 is coaxially connected with a servo motor, and the servo motor can control the retracting and unwinding state of the retracting roller 33. At the same time, in order to further ensure the correct moving direction of the push tube 32 during unwinding, two retracting wheels 17 are mirror-imaged on both sides of the connection port 11, and the push tube 32 is arranged between the two retracting wheels 17, and the push tube 32 abuts against the retracting wheels 17. The two retracting wheels 17 are also controlled by their own independent servo motors, and the servo motors of the retracting wheels 17 and the servo motors of the retracting rollers 33 are synchronously operated, so that during unwinding, the two retracting wheels 17 can push the push tube 32 to extend outward to drive the leak detection head 31 into the water pipe. It should be noted that when the leak detection head 31 is in the initial position, the leak detection head 31 is inserted into the connection port 11.

[0061] The structure of the leak detection head 31 is described in detail below. The leak detection head 31 includes a positioning seat 311, a mounting frame 312 disposed on one side of the positioning seat 311, and a leak detection assembly 313 disposed on the mounting frame 312. The positioning seat 311 is connected to the push tube 32. The positioning seat 311 is a connection structure between the leak detection head 31 as a whole and the push tube 32. The mounting frame 312 is disposed on a side of the positioning seat 311 away from the push tube 32, and the mounting frame 312 is coaxially disposed with the positioning seat 311. The leak detection assembly 313 is suitable for swinging along the axial direction of the mounting frame 312.

[0062] In order to achieve the detection effect of the leak detection assembly 313 on the leak, the leak detection assembly 313 includes a leak detection target seat 3131 and a leak detection bait block 3132. A positioning plate 314 is arranged inside the mounting frame 312, and the leak detection target seat 3131 is arranged on the side of the positioning plate 314 facing the leak detection bait block 3132. The leak detection bait block 3132 is arranged at a distance from the leak detection assembly 313, and the leak detection bait block 3132 is circumferentially connected to a plurality of elastic members 315, and the other end of the elastic member 315 is connected to the mounting frame 312. Through the above arrangement, the leak detection target seat 3131 is positioned on the mounting frame 312 and will not move relative to the mounting frame 312, while the leak detection bait block 3132 is connected to the mounting frame 312 through the elastic member 315, so the leak detection bait block 3132 will move relative to the mounting frame 312, that is, the leak detection bait block 3132 will approach or move away from the leak detection target seat 3131, that is, the effect of axial swing is achieved. It should be noted that in the place where there is no leakage in the water pipe, the water flow is uniform, that is, laminar flow, and the water flow will not have a great impact on the leak detection bait block 3132. However, in the place where there is a leak in the water pipe, the water flow is not uniform, that is, turbulent flow, and the water flow will affect the equilibrium state of the leak detection bait block 3132, so that the frequency of the leak detection bait block 3132 hitting the leak detection target seat 3131 is significantly increased. The above principle is combined with this embodiment, that is, when the push tube 32 drives the leak detection bait block 3132 to move to the leaking part of the water pipe, the water in the water pipe impacts the leak detection bait block 3132, so that the leak detection bait block 3132 hits the leak detection target seat 3131. In this way, the leaking part in the water pipe can be detected.

[0063] A signal transmitter is provided on the leak detection bait block 3132. This facilitates the location of the leak detection bait block 3132. At the same time, in order to reflect the impact of the leak detection target seat 3131, a pressure-sensitive sensor is provided on the leak detection target seat 3131. Through the above arrangement, after releasing the leak detection head 31, the operator only needs to hold the signal receiver and track the leak detection bait block 3132 along the extension direction of the water pipe. When the frequency of the indication change of the pressure-sensitive sensor is observed to increase significantly, the operator stops releasing the leak detection head 31, and the leak position of the water pipe can be located.

[0064] Embodiment 2: This embodiment is implemented on the basis of embodiment 1. This embodiment provides a leak detection method, including a fast-positioning intelligent water pipe leak detector as described in embodiment 1. A specific leak detection method is as follows:

[0065] S1: The joystick 22 pushes the pressurizing piston 21, and the pressurizing piston 21 pushes the gas in the pressurizing channel 13 into the air inlet channel 12, and then passes through the air inlet channel 12 through the connecting port 11 and into the water pipe;

[0066] When the pressure in the water pipe remains constant, there is no leakage in the water pipe;

[0067] When the pressure in the water pipe decreases, execute S2;

[0068] S2, the retracting wheel 17 and the retracting roller 33 cooperate to drive the push tube 32 to unwind outward, and the push tube 32 pushes the leak detection head 31 into the water pipe;

[0069] S3. Track the position of the leak detection bait block 3132 through the signal receiver, and record the frequency change of the pressure sensitive sensor on the leak detection target seat 3131.

[0070] It is worth mentioning that the technical features such as other components of the leak detector involved in the patent application of this invention should be regarded as the prior art. The specific structure, working principle and possible control method and spatial layout method of these technical features can be selected according to the conventional selection in the field, and should not be regarded as the inventive point of the patent of this invention. The patent of this invention will not be further elaborated.

[0071] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A quick-positioning intelligent water pipe leak detector, characterized in that: include: A device body (1), a pressurizing portion (2) arranged at the top of the device body (1), and a leak detection portion (3) arranged inside the device body (1); The device body (1) is suitable for being connected to a water pipe; The pressurizing part (2) is suitable for applying pressure to the water pipe; The leak detection portion (3) is suitable for extending and retracting along the length direction; wherein When there is no leakage in the water pipe, after the pressurizing part (2) pressurizes the water pipe, the pressure in the water pipe remains unchanged; When the water pipe leaks, the pressurizing part (2) pressurizes the water pipe, and the pressure in the water pipe decreases rapidly, and the leak detection part (3) slides along the inside of the water pipe until it reaches the leaking part; The leak detection part (3) comprises a leak detection head (31), a push tube (32) and a retracting roller (33); the retracting roller (33) is rotatably arranged in the device body (1); the leak detection head (31) is arranged on one side of the device body (1); and the push tube (32) is arranged between the leak detection head (31) and the retracting roller (33); One end of the push tube (32) is connected to the retractable roller (33), and the other end is connected to the leak detection head (31), and the push tube (32) is in contact with the device body (1); The leak detection head (31) is suitable for detecting leaks in water pipes; wherein When the water pipe leaks, the retracting roller (33) unwinds the pushing tube (32), and the pushing tube (32) pushes the leak detection head (31) to move along the water pipe until the leak detection head (31) reaches the leaking part of the water pipe; A connection port (11) is provided on one side of the device body (1), and the connection port (11) is suitable for being connected to a water pipe; The leak detection head (31) is inserted into the connection port (11); The leak detection head (31) comprises a positioning seat (311), a mounting frame (312) arranged on one side of the positioning seat (311), and a leak detection assembly (313) arranged on the mounting frame (312); The positioning seat (311) is connected to the pushing tube (32); The mounting frame (312) and the positioning seat (311) are coaxially arranged; The leak detection assembly (313) is suitable for swinging axially along the mounting frame (312).

2. The quick-positioning intelligent water pipe leak detector according to claim 1, characterized in that: The leak detection assembly (313) comprises a leak detection target seat (3131) and a leak detection bait block (3132); A positioning plate (314) is arranged inside the mounting frame (312), and the leak detection target seat (3131) is arranged on a side of the positioning plate (314) facing the leak detection bait block (3132); The leak detection bait block (3132) is spaced apart from the leak detection assembly (313), and the leak detection bait block (3132) is circumferentially connected to a plurality of elastic members (315), and the other end of the elastic member (315) is connected to the mounting frame (312); wherein When the leak detection bait block (3132) is located at a leaking location of a water pipe, water in the water pipe impacts the leak detection bait block (3132), so that the leak detection bait block (3132) hits the leak detection target seat (3131).

3. The quick-positioning intelligent water pipe leak detector according to claim 2, characterized in that: A pressure-sensitive sensor is provided on the leak detection target seat (3131), and a signal transmitter is provided on the leak detection bait block (3132).

4. The quick-positioning intelligent water pipe leak detector according to claim 3, characterized in that: An air intake channel (12), a pressurizing channel (13) and an air charging channel (14) are provided in the device body (1); the air intake channel (12), the pressurizing channel (13) and the air charging channel (14) are all connected; A gas charging port (18) is provided on a side of the device body (1) away from the connecting port (11), and the gas charging channel (14) is connected to the gas charging port (18); The air intake passage (12) is connected to the connecting port (11); One end of the pressurizing portion (2) is inserted into the pressurizing channel (13) and is sealed with the pressurizing channel (13); A first one-way valve (15) is arranged in the air intake passage (12), and a second one-way valve (16) is arranged in the air charging passage (14).

5. The quick-positioning intelligent water pipe leak detector according to claim 4, characterized in that: The pressurizing part (2) comprises a pressurizing piston (21), a control rod (22) and an adjusting rod (23); The pressurizing piston (21) is slidably disposed in the pressurizing channel (13); One end of the operating rod (22) is hinged to the top of the device body (1), and the operating rod (22) is provided with an adjustment slot (221) along the length direction; One end of the adjusting rod (23) is slidably disposed in the adjusting groove (221), and the other end of the adjusting rod (23) is connected to the pressurizing piston (21).

6. The quick-positioning intelligent water pipe leak detector according to claim 5, characterized in that: Two retractable wheels (17) are arranged in a mirror-like manner on both sides of the connection port (11); the push tube (32) is arranged between the two retractable wheels (17), and the push tube (32) abuts against the retractable wheels (17).

7. A leak detection method, comprising the quick positioning intelligent water pipe leak detector as claimed in claim 6, characterized in that: S1: the operating lever (22) pushes the pressurizing piston (21), and the pressurizing piston (21) pushes the gas in the pressurizing channel (13) into the air inlet channel (12), and then passes through the air inlet channel (12) and into the water pipe through the connecting port (11); When the pressure in the water pipe remains constant, there is no leakage in the water pipe; When the pressure in the water pipe decreases, execute S2; S2, the retracting wheel (17) and the retracting roller (33) cooperate to drive the push tube (32) to unwind outward, and the push tube (32) pushes the leak detection head (31) into the water pipe; S3. Track the position of the leak detection bait block (3132) through a signal receiver, and record the frequency change of the pressure sensitive sensor on the leak detection target seat (3131).

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