Water leakage detection device for water balance test

Abstract

The invention discloses a water balance test water leakage detection device, and relates to the technical field of water leakage detection, the water balance test water leakage detection device comprises a detection assembly, the detection assembly is used for detecting whether a valve on a water delivery pipeline leaks water or not, the detection assembly comprises a detection bin, a plugging plate and a pressure adjusting mechanism, and the detection bin is communicated with the water delivery pipeline; the blocking plate is slidably connected into the detection bin and is used for separating the water conveying pipeline from the detection bin; when the valve is closed, the pressure adjusting mechanism is used for forcing the blocking plate to be away from the water conveying pipeline. When the valve is opened, the pressure adjusting mechanism forces the plugging plate to be away from the detection bin. According to the water balance test water leakage detection device provided by the invention, when the valve is closed, the pressure adjusting mechanism forces the plugging plate to be away from the water conveying pipeline, and at the moment, if the plugging plate gradually enters the detection bin under the action of the pressure adjusting mechanism, it is indicated that water leakage occurs at the valve.

Description

Technical Field

[0001] The invention relates to the technical field of water leakage detection, and in particular to a water leakage detection device for a water balance test. Background Art

[0002] Water balance tests are generally performed when water use systems are managing resources to determine the supply and demand of water sources in the system and changes in water bodies. Leakage detection refers to the use of various equipment to detect and locate leaks in water pipelines during the water balance test.

[0003] For example, the patent document with application publication number CN115307844A and application publication date November 8, 2022, and titled "A Pipeline Valve Connection Leakage Detection Device and Detection Method", detects the water pressure of the water flow in the valve through the valve leakage water pressure sensor in the sensor assembly, and detects the flow rate through the valve water flow sensor. The water pressure and water flow data detected by the valve leakage water pressure sensor and the valve water flow sensor are compared with the water pressure and water flow under normal operation of the valve. When data abnormality occurs, the control data is output through the control data output port.

[0004] The valve is an important component for controlling water flow. In the prior art, whether there is a water leak in the pipeline is generally determined by detecting the water pressure, but there is no better detection method for whether there is a water leak in the valve. Summary of the invention

[0005] The purpose of the present invention is to provide a water balance test leakage detection device to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A water balance test leakage detection device comprises a detection component, wherein the detection component is used to detect whether a valve on a water pipeline is leaking or not, and the detection component comprises:

[0008] A detection chamber, which is in communication with the water delivery pipeline;

[0009] A blocking plate, which is slidably connected in the detection chamber and is used to separate the water delivery pipeline and the detection chamber;

[0010] A pressure regulating mechanism is used to force the blocking plate away from the connecting pipe when the valve is closed; and to force the blocking plate away from the detection chamber when the valve is opened.

[0011] In the above-mentioned water balance test water leakage detection device, the pressure regulating mechanism includes an elastic member for forcing the blocking plate to stay away from the water pipeline and a resisting member for resisting the blocking plate.

[0012] In the above-mentioned water leakage detection device for a water balance test, the resistance member comprises a rotating disk rotatably connected to a sealing plate, the rotating disk is provided with an arc block, the arc block is provided with a wedge-shaped portion and a flat portion, and a connecting rod is fixed to the inner wall of the detection chamber.

[0013] In the above-mentioned water balance test water leakage detection device, the valve includes a valve body connected to the water supply pipeline and a valve stem rotatably connected to the valve body.

[0014] The above-mentioned water balance test leakage detection device also includes a driving disk, a linkage rod is hinged on the driving disk, a connecting disk is fixed on the valve stem, and the linkage rod is hinged to the connecting disk.

[0015] In the above-mentioned water balance test leakage detection device, a driving shaft is rotatably connected to the detection chamber, and the driving shaft and the driving disc are limitedly connected.

[0016] In the above-mentioned water balance test water leakage detection device, the driving disk and the rotating disk are connected in a limiting manner.

[0017] In the above-mentioned water balance test leakage detection device, when the driving disk drives the valve to close, the sealing plate is away from the water pipe under the action of the elastic member, and when the driving disk drives the valve to open, the connecting rod and the flat part collide with each other to force the sealing plate away from the detection chamber.

[0018] In the above-mentioned water leakage detection device for a water balance test, an arc-shaped groove is constructed on the detection chamber, a vertical rod is fixed on the rotating disk, and the vertical rod passes through the arc-shaped groove and is fixed to the driving disk.

[0019] In the above-mentioned water balance test leakage detection device, two valves are adjacently arranged on the water delivery pipeline, and the detection chamber is located between the two adjacent valves.

[0020] In the above technical scheme, the present invention provides a water balance test leakage detection device. After the connecting pipe is connected to the water supply pipeline, the flow of water in the connecting pipe and part of the water supply pipeline can be controlled by a valve. When the valve is opened, the pressure regulating mechanism forces the sealing plate to move away from the detection chamber, and blocks the water flow through the sealing plate so that the water flows only through the connecting pipe and does not enter the detection chamber; when the valve is closed, the pressure regulating mechanism forces the sealing plate to move away from the connecting pipe. At this time, if the position of the sealing plate does not move or the moving distance is small, there is basically no leakage at the connecting pipe and the valve. If the sealing plate gradually enters the detection chamber under the action of the pressure regulating mechanism, it means that there is leakage at the connecting pipe or the valve, and timely maintenance is required to avoid affecting the water balance test as much as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application 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 recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0022] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention;

[0023] Figure 2 A schematic diagram of the structure of a detection chamber provided in yet another embodiment of the present invention;

[0024] Figure 3 A schematic diagram of an arc block structure provided in yet another embodiment of the present invention;

[0025] Figure 4 A schematic diagram of a telescopic rod structure provided by another embodiment of the present invention;

[0026] Figure 5 A schematic diagram of a spherical structure provided by another embodiment of the present invention;

[0027] Figure 6 A schematic diagram of a vertical rod structure provided by another embodiment of the present invention;

[0028] Figure 7 A schematic diagram of an arc groove structure provided by another embodiment of the present invention;

[0029] Figure 8 A schematic diagram of a pin structure provided by another embodiment of the present invention;

[0030] Fig. 9 This is a schematic diagram of the structure of a drive disk provided in yet another embodiment of the present invention.

[0031] Description of reference numerals:

[0032] 1. Water pipeline; 2. Inspection chamber; 3. Sealing plate; 4. Elastic member; 5. Rotating disk; 6. Arc block; 61. Wedge-shaped portion; 62. Plane portion; 7. Connecting rod; 8. Valve body; 9. Valve stem; 10. Sphere; 11. Hole; 12. Drive disk; 13. Linkage rod; 14. Connecting disk; 15. Drive shaft; 16. Handle; 17. Telescopic rod; 18. Arc groove; 19. Vertical rod; 20. Pin. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0034] Reference Figure 1-9An embodiment of the present invention provides a water leakage detection device for a water balance test, including a detection component, wherein the detection component is used to detect whether a valve on a water pipeline 1 is leaking. The detection component includes a detection chamber 2, a blocking plate 3 and a pressure regulating mechanism. The detection chamber 2 is connected to the water pipeline 1; the blocking plate 3 is slidably connected in the detection chamber 2 and is used to separate the water pipeline 1 and the detection chamber 2; when the valve is closed, the pressure regulating mechanism is used to force the blocking plate 3 to stay away from the water pipeline 1; when the valve is opened, the pressure regulating mechanism forces the blocking plate 3 to stay away from the detection chamber 2.

[0035] Specifically, some enterprises or factories will conduct water balance tests in order to save water resources. The water balance test can monitor and analyze the input and output of water resources to evaluate the use of water resources in the water use system. When conducting a water balance test, various metering instruments need to be installed in the water use system to record the water use situation, and it is also necessary to detect whether there are any leaks in the pipeline and valves. In the case that there is no damage to the pipeline, whether the valve at the outlet end of the water pipeline 1 is leaking can be determined by observation (valve leakage is generally caused by insufficient sealing. When the valve is closed, water flowing out is considered a leak). For the valve in the middle part of the water pipeline 1, it is impossible to observe whether it is leaking, but the adverse effects of the leakage will be fed back to other positions of the water pipeline 1 (for example, after the valve leaks, the pressure upstream and downstream will change). The innovation of the embodiment of the present invention is that a detection component is arranged on the water pipeline 1, and the detection component includes a detection chamber 2, a sealing plate 3 and a pressure regulating structure. The detection chamber 2 is a chamber body (box body) structure, one end of which is constructed with an opening and is connected to the water pipeline 1. Correspondingly, the water pipeline 1 is also constructed with an opening adapted to the detection chamber 2, and the sealing plate 3 can seal the opening of the water pipeline 1 when it is away from the detection chamber 2; the sealing plate 3 is located on the side of the detection chamber 2 close to the water pipeline 1, and a dynamic sealing structure is arranged between the sealing plate 3 and the detection chamber 2 to separate the water pipeline 1 and the detection chamber 2 through the sealing plate 3; the pressure regulating mechanism is located in the detection chamber 2 and on the side of the sealing plate 3 away from the water pipeline 1, and the pressure (positive pressure or negative pressure) exerted on the sealing plate 3 can be controlled by the pressure regulating mechanism, so that the sealing plate 3 is close to the water pipeline 1 or away from the water pipeline 1.

[0036] In this embodiment, the detection chamber 2 is located downstream of the valve to be detected. In the prior art, a multi-stage valve is generally provided on the water pipeline 1 to control the flow of water. Assuming that a three-stage valve (such as a main valve, a branch valve and a faucet) is provided on the water pipeline 1 from upstream to downstream, when the first-stage valve and the second-stage valve are both in an open state, the third-stage valve is opened to release water, and the third-stage valve is closed to prevent the flow of water; the detection chamber 2 in each embodiment of the present invention is arranged downstream of the valve to be detected, such as downstream of the second-stage valve. When performing a water balance test, all the first-stage valves and the second-stage valves are opened first. At this time, all the third-stage valves are closed to determine whether the third-stage valve is leaking according to whether water flows out of the third-stage valve. During the process, the pressure regulating mechanism can apply pressure to the plugging plate 3 to limit the plugging plate 3 to the side close to the water pipeline 1, so that the water at the water pipeline 1 and the second-stage valve flows normally; after determining that all the three-stage valves are not leaking, all the second-stage valves and the third-stage valves are closed, and then a negative pressure is applied to the plugging plate 3 by the pressure regulating mechanism (that is, a pulling force is applied to make the plugging plate 3 has a tendency to pump water into the detection chamber 2) to force the blocking plate 3 away from the delivery pipeline (such as creating a negative pressure environment on the side of the detection chamber 2 away from the water supply pipeline 1). At this time, the valves upstream and downstream of the detection chamber 2 are closed. If the valve does not leak, the water between the secondary valve and the tertiary valve should be in a static state and cannot be pumped by the blocking plate 3. Even if there is a small amount of air between the secondary valve and the tertiary valve, the blocking plate 3 will only enter the detection chamber 2 for a short distance; on the contrary, if the blocking plate 3 gradually enters the detection chamber 2 (a displacement sensor can be set in the detection chamber 2 to monitor the displacement of the blocking plate 3, so as to determine whether the valve has a leakage problem through the signal fed back by the displacement sensor), it means that the corresponding secondary valve has a leakage, so that the water upstream of the secondary valve flows into the detection chamber 2 through the secondary valve; correspondingly, the primary valve can also be tested for leakage in the same way; in this way, it can be determined whether the valve in the middle part of the water supply pipeline 1 has a leakage, and the water balance test of the water use system is avoided as much as possible.

[0037] A water leakage detection device for a water balance test provided by an embodiment of the present invention can control the flow of water in a part of a water supply pipe 1 through a valve. When the valve is opened, the pressure regulating mechanism forces the sealing plate 3 to move away from the detection chamber 2. At this time, the sealing plate 3 can allow the water to flow only through the connecting pipe without entering the detection chamber 2; when the valve is closed, the pressure regulating mechanism forces the sealing plate 3 to move away from the water supply pipe 1. At this time, if the position of the sealing plate 3 does not move or the moving distance is short, there is basically no water leakage at the valve. If the sealing plate 3 gradually enters the detection chamber 2 under the action of the pressure regulating mechanism, it means that there is a water leakage at the valve, so that the water on the side of the valve away from the detection chamber 2 flows into the detection chamber 2 through the valve. At this time, timely maintenance is required to avoid affecting the water balance test as much as possible.

[0038] In another embodiment provided by the present invention, further, the pressure regulating mechanism includes an elastic member 4 for forcing the blocking plate 3 to move away from the water pipeline 1 and a resistance member for resisting the blocking plate 3. Specifically, the elastic member 4 may use a spring structure in the prior art, the elastic member 4 is located on the side of the blocking plate 3 away from the water pipeline 1, one end of the elastic member 4 is fixed on the blocking plate 3, and the other end is fixed on the inner wall of the detection chamber 2, and the elastic member 4 is in a stretched state to force the blocking plate 3 to move away from the water pipeline 1 along the detection chamber 2; the resistance member may use an electric push rod structure in the prior art, one end of the electric push rod is fixed on the inner wall of the detection chamber 2, and the other end resists the blocking plate 3, so that the electric push rod can resist the blocking plate 3 when extended, so as to force the blocking plate 3 to overcome the elastic force of the elastic member 4 and be located on the side of the detection chamber 2 close to the water pipeline 1. The advantage of such a configuration is that, through the cooperation between the resistance member and the elastic member 4, the elastic member 4 can selectively provide pulling force to the sealing plate 3, or the resistance member can provide thrust to the sealing plate 3, so that the sealing plate 3 can adapt to the operation of the valve and detect whether the valve is leaking or not.

[0039] As a replacement for the above-mentioned electric push rod, preferably, the abutment member includes a rotating disk 5 rotatably connected to the blocking plate 3, the rotating disk 5 is configured with an arc block 6, the arc block 6 is configured with a wedge portion 61 and a flat portion 62, and a connecting rod 7 is fixed to the inner wall of the detection chamber 2. Specifically, the rotating disk 5 is located on the side of the blocking plate 3 away from the water pipe 1, the arc block 6 is fixed to the side of the rotating disk 5 away from the blocking plate 3, the arc block 6 is arranged along the edge of the rotating disk 5, the lower end of the wedge portion 61 is smoothly connected to the rotating disk 5, and the higher end of the wedge portion 61 is smoothly connected to the flat portion 62 (such as Figure 2 and Figure 3 One end of the connecting rod 7 is fixed on the inner wall of the detection chamber 2, and the other end extends to a position corresponding to the arc block 6; in this embodiment, a power source can be set on the blocking plate 3 to drive the rotating disk 5 to rotate on the blocking plate 3. With such arrangement, when the lower end of the wedge-shaped portion 61 corresponds to the connecting rod 7, there is a certain distance between the arc block 6 and the connecting rod 7. At this time, the elastic member 4 can force the blocking plate 3 to move away from the water pipe 1. If the blocking plate 3 moves away from the water pipe 1 under the action of the elastic member 4, the lower end of the arc block 6 moves with the blocking plate 3 to approach the connecting rod 7, indicating that the valve has a water leakage problem; when the valve is opened, the rotating disk 5 is driven to rotate by the power source so that the flat portion 62 corresponds to the connecting rod 7. During the process, the wedge-shaped portion 61 and the connecting rod 7 conflict with each other to force the blocking plate 3 and the rotating disk 5 to move away from the connecting rod 7 until the flat portion 62 conflicts with the connecting rod 7, and the blocking plate 3 moves to the end close to the water pipe 1, so that the blocking plate 3 can be restricted to the end close to the water pipe 1 and the opening on the water pipe 1 can be blocked (such as Figure 2 and Figure 3The advantage is that the plugging plate 3 can be adapted to operate by driving the rotating disk 5 to rotate through the power source, so as to cooperate with the elastic member 4 to apply positive or negative pressure to the plugging plate 3, thereby detecting whether the valve has a water leakage problem when the valve is closed.

[0040] In another embodiment provided by the present invention, further, the valve includes a valve body 8 connected to the water pipeline 1 and a valve stem 9 rotatably connected to the valve body 8. Specifically, the valve body 8 is internally constructed with a water channel connected to the water pipeline 1, a ball 10 is fixed at one end of the valve stem 9, and a hole 11 is constructed on the ball 10. When the valve stem 9 drives the ball 10 to rotate, if the hole 11 is connected to the water channel, the valve is in an open state. As the ball 10 rotates, the hole 11 on the ball 10 is gradually blocked by the inner wall of the water channel, until the hole 11 on the ball 10 is completely blocked by the inner wall of the water channel, the valve is in a closed state (the arrangement of the valve stem 9 and the ball 10 is similar to the ball valve in the prior art, which will not be repeated here). With such an arrangement, the opening and closing of the valve can be controlled by rotating the valve stem 9, and the range of rotation of the valve stem 9 is limited to about 90 degrees.

[0041] Furthermore, it also includes a driving disk 12, on which a linkage rod 13 is hinged, and a connecting disk 14 is fixed on the valve stem 9, and the linkage rod 13 is hinged to the connecting disk 14. A driving shaft 15 is rotatably connected to the detection chamber 2, and the driving shaft 15 is limitedly connected to the driving disk 12. Specifically, the two ends of the linkage rod 13 are respectively hinged to the driving disk 12 and the connecting disk 14, and the hinge point of the linkage rod 13 and the driving disk 12 is located on the side of the driving disk 12 deviating from the central axis, and the hinge point of the linkage rod 13 and the connecting disk 14 is located on the side of the connecting disk 14 deviating from the central axis. The driving shaft 15 is rotatably connected to the detection chamber 2, and the connection mode of the limited connection between the driving shaft 15 and the driving disk 12 can be a fixed connection, so that the driving disk 12 is driven to rotate by the driving shaft 15. In this way, the driving disk 12 can be driven to rotate by controlling the rotation of the driving shaft 15, so that the connecting disk 14 is driven to rotate together through the linkage rod 13, and then the opening or closing of the valve is controlled by the driving shaft 15.

[0042] It should be noted that the driving method of the driving shaft 15 can be directly selected by the handle 16, or a reduction drive structure in the existing design, such as a worm gear (not shown). Optionally, the outer wall of the water pipe 1 is constructed with an extension portion, and the worm is rotatably connected to the extension portion. The worm wheel is fixed on the driving shaft 15 and meshes with the worm. In this way, the worm gear can drive the worm wheel and the driving shaft 15 to rotate, thereby controlling the opening and closing of the valve.

[0043] As an alternative to the above-mentioned power source driving the rotating disk 5 to rotate, preferably, the driving disk 12 and the rotating disk 5 are connected in a limited position. Specifically, the rotating disk 5 can move with the blocking plate 3 in the detection chamber 2 (the moving direction of the blocking plate 3 in the detection chamber 2, the axial direction of the driving shaft 15 and the axial direction of the valve stem 9 are parallel to each other), the driving disk 12 is sleeved on the driving shaft 15 and is hinged to the linkage rod 13. If a fixed connection is selected between the driving disk 12 and the rotating disk 5, the movement of the blocking plate 3 will affect the hinge of the driving disk 12 and the linkage rod 13; optionally, a telescopic rod 17 is provided between the driving disk 12 and the rotating disk 5, and an adapting groove adapted to the telescopic rod 17 is constructed on the detection chamber 2, and the telescopic rod 17 is inserted into the adapting groove. The two ends of the telescopic rod 17 are respectively fixed to the driving disk 12 and the rotating disk 5; such arrangement enables the driving disk 12 and the rotating disk 5 to move closer to or farther from each other along the telescopic rod 17, but cannot rotate relative to each other, that is, when the driving shaft 15 rotates, it can drive the driving disk 12 and the rotating disk 5 to rotate synchronously and in the same direction. During the process, if the blocking plate 3 moves in the detection chamber 2, the telescopic rod 17 is adapted to extend and retract to make the rotating disk 5 move closer to or farther from the driving disk 12 (in this embodiment, the driving disk 12 and the driving shaft 15 are fixed, and the rotating disk 5 moves closer to or farther from the driving disk 12 along the telescopic rod 17). The advantage is that the driving shaft 15 can drive the driving disk 12 and the rotating disk 5 to rotate synchronously, thereby combining the opening and closing of the valve with the operation of the pressure regulating mechanism, so that the device can operate adaptively.

[0044] Preferably, when the driving disk 12 drives the valve to close, the blocking plate 3 is away from the water pipe 1 under the action of the elastic member 4, and when the driving disk 12 drives the valve to open, the connecting rod 7 and the flat portion 62 collide with each other to force the blocking plate 3 away from the detection chamber 2. Specifically, Figure 4 As shown, when the drive shaft 15 drives the drive disc 12 to rotate forward ( Figure 4In the figure, looking from top to bottom, clockwise rotation is positive rotation, and counterclockwise rotation is reverse rotation), the linkage rod 13 can drive the valve stem 9 to rotate forward, thereby blocking the water pipe 1 through the ball 10 to close the valve. At the same time, the forward rotation of the drive disk 12 can also drive the rotating disk 5 to rotate forward, thereby driving the lower end of the wedge-shaped portion 61 to correspond to the connecting rod 7. At this time, the water leakage can be detected when the valve is closed; conversely, when the drive shaft 15 drives the drive disk 12 to reverse, the linkage rod 13 can drive the valve to open, and at the same time, the drive disk 12 drives the rotating disk 5 to rotate, so that the flat portion 62 corresponds to the connecting rod 7, and then the plugging plate 3 is restricted to the side close to the water pipe 1 through the connecting rod 7 and the flat portion 62; the valve stem 9 and the ball 10 are in the valve body 8 The valve stem 9 has a certain rotation angle, such as a rotation range of 0-90 degrees, wherein 0-80 degrees corresponds to the opening of the valve (that is, in this range, the hole 11 on the sphere 10 is connected to the water channel), and 80-90 degrees corresponds to the closing of the valve (that is, in this range, the hole 11 on the sphere 10 is completely blocked by the inner wall of the water channel, so as to block the water channel through the sphere 10). Accordingly, when the valve stem 9 and the sphere 10 rotate to the range of 0-80 degrees, the connecting rod 7 and the flat portion 62 correspond, and the blocking plate 3 is at the side close to the water pipeline 1 at this time. When the valve stem 9 and the sphere 10 rotate to the range of 80-90 degrees, the connecting rod 7 and the wedge-shaped portion 61 correspond, and the blocking plate 3 has a tendency to move away from the water pipeline 1 under the action of the elastic member 4.

[0045] like Figure 5As shown, it corresponds to the state where the connecting rod 7 moves relatively between the wedge-shaped portion 61 and the flat portion 62, wherein the ball 10 rotates 80 degrees counterclockwise corresponding to the process of opening the valve, and at the same time, the connecting rod 7 corresponds to the flat portion 62, and the ball 10 rotates 10 degrees clockwise corresponding to the process of closing the valve, and at the same time, the connecting rod 7 corresponds to the wedge-shaped portion 61. The advantage of such a setting is that when the valve is gradually closed by the driving shaft 15, the connecting rod 7 always corresponds to the flat portion 62, until the hole 11 on the ball 10 is completely blocked by the inner wall of the water delivery channel, the ball 10 blocks the water delivery channel, and at this time, the driving shaft 15 continues to rotate to block the valve while making the connecting rod 7 correspond to the lower end of the wedge-shaped portion 61, so as to detect whether the valve is leaking through the displacement of the blocking plate 3; on the contrary, in the process of the driving shaft 15 opening the valve, the connecting rod 7 can be resisted by the wedge-shaped portion 61, so that the connecting rod 7 resists the flat portion 62, and when the connecting rod 7 moves relatively to between the wedge-shaped portion 61 and the flat portion 62, the driving shaft 15 starts to drive the valve to open (the process of the connecting rod 7 moving relatively away from the wedge-shaped portion 61 along the flat portion 62 is the process of the valve opening); in this way, the blocking plate 3 can be restricted to the side close to the water supply pipe 1 first, and then the valve can be opened, so as to avoid the situation where the elastic member 4 forces the blocking plate 3 to draw water into the detection chamber 2 when the blocking plate 3 is released when the valve is in the open state; in this way, the opening and closing of the valve and the operation of the blocking plate 3 can be adapted, and then the water leakage of the valve can be detected when the valve is in the closed state.

[0046] In another embodiment provided by the present invention, as an alternative solution for the limited connection between the driving disk 12 and the rotating disk 5 through the telescopic rod 17, further, the detection chamber 2 is constructed with an arc groove 18, and the rotating disk 5 is fixed with a vertical rod 19, and the vertical rod 19 passes through the arc groove 18 and is fixed to the driving disk 12. Specifically, a pin 20 is fixed on the driving disk 12, and a hinge groove is constructed on the linkage rod 13. The pin 20 is inserted in the hinge groove, so that the driving disk 12 is hinged to the linkage rod 13 through the pin 20; in this embodiment, a sliding sleeve limited connection method is adopted between the driving shaft 15 and the driving disk 12, the driving shaft 15 is constructed as a non-rotating body, and a through groove adapted to the driving shaft 15 is constructed on the driving disk 12. The driving shaft 15 is slidably connected in the through groove, so that the driving disk 12 can move along the driving shaft 15 with the rotating disk 5, and when the blocking plate 3 and the rotating disk 5 are away from the water pipe 1, the driving disk 12 will drive the pin 20 away The linkage rod 13 is released from the hinge with the linkage rod 13 (the hinge structure between the connecting disk 14 and the linkage rod 13 is restricted, so that the linkage rod 13 can only rotate relative to the connecting disk 14, which is a prior art and will not be described here); in this embodiment, the driving disk 12 and the rotating disk 5 are fixedly connected by the vertical rod 19. When the blocking plate 3 moves in the detection chamber 2, the rotating disk 5, the vertical rod 19 and the driving disk 12 all move with the blocking plate 3. When the driving disk 12 rotates with the driving shaft 15, the vertical rod 19, the rotating disk 5 and the arc block 6 all rotate with the driving disk 12. During the process, the vertical rod 19 slides in the arc groove 18 in an adaptive manner;

[0047] The advantage of such a setting is that when the drive shaft 15 rotates to drive the valve to open, the flat portion 62 and the connecting rod 7 collide with each other, so that the blocking plate 3 is located on the side close to the water pipe 1 and is restricted by the connecting rod 7, so that the water in the water pipe 1 flows normally; when the drive shaft 15 rotates to drive the valve to close, the lower end of the wedge-shaped portion 61 corresponds to the connecting rod 7. At this time, the arc block 6 loses the contact with the connecting rod 7, so that the blocking plate 3 has a tendency to move away from the water pipe 1 due to the action of the elastic member 4. If there is no water leakage problem in the valve, the blocking plate 3 will not move or move a short distance in the detection chamber 2. The pin 20 is inserted in the hinge groove, the drive disk 12 and the linkage rod 13 remain hinged, and the drive shaft 15 can drive the valve to open and close; if the valve has a water leakage problem, the sealing plate 3 will be away from the water pipe 1 under the action of the elastic member 4, and the drive disk 12 will be away from the water pipe 1 along with the sealing plate 3, so that the pin 20 is moved out of the hinge groove, and then the hinge between the drive disk 12 and the linkage rod 13 is released, thereby releasing the drive of the valve, reminding the staff to inspect or replace the valve, and cooperating with the above-mentioned displacement sensor can achieve a dual warning effect, and try to avoid valve leakage affecting the water balance test of the water use system.

[0048] In another embodiment provided by the present invention, further, two valves are adjacently arranged on the water pipeline 1, and the detection chamber 2 is located between the two adjacent valves. Specifically, in the above embodiment, one valve corresponds to one detection chamber 2, and in this embodiment, two valves are adjacently arranged on the water pipeline 1, and the detection chamber 2 is located between the two adjacent valves. Both valves include a valve stem 9, a connecting plate 14 and a linkage rod 13 structure, and two pins 20 are fixed on the driving plate 12. Both linkage rods 13 are constructed with hinge grooves, so that the driving plate 12 is hinged to the two linkage rods 13 respectively through the two pins 20. When the driving shaft 15 rotates, the two valves can be controlled to open and close synchronously through the driving plate 12 and the two linkage rods 13. With such arrangement, when the two valves are controlled to open synchronously by the driving shaft 15, the blocking plate 3 is restricted and is located on the side close to the water pipe 1; when the two valves are controlled to close synchronously by the driving shaft 15, the blocking plate 3 located between the two valves has a tendency to move away from the water pipe 1 under the action of the elastic member 4. At this time, if one of the two valves has a water leakage problem, the blocking plate 3 will pump water into the detection chamber 2 under the action of the elastic member 4, so that the driving disk 12 is simultaneously released from the hinge of the two linkage rods 13.

[0049] The advantage is that the synchronous opening and closing of the two valves can improve the stability of the valve operation and avoid water leakage at the valve as much as possible; when the two valves are closed synchronously, the water pipeline 1 between the two valves is shorter, which can minimize the impact of the air in the water pipeline 1 on the operation of the blocking plate 3; after a valve leaks, the other valve can still operate normally. At this time, repairing the valve can avoid the water in the water pipeline 1 from flowing over the valve as much as possible.

[0050] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A water balance test leakage detection device, comprising a detection component, wherein the detection component is used to detect whether a valve on a water pipeline is leaking, and is characterized in that: The detection component comprises: A detection chamber, which is in communication with the water delivery pipeline; A blocking plate, which is slidably connected in the detection chamber and is used to separate the water delivery pipeline and the detection chamber; A pressure regulating mechanism is used to force the blocking plate away from the connecting pipe when the valve is closed; and to force the blocking plate away from the detection chamber when the valve is opened.

2. A water balance test leakage detection device according to claim 1, characterized in that: The pressure regulating mechanism comprises an elastic member for forcing the blocking plate to stay away from the water pipeline and a resisting member for resisting the blocking plate.

3. A water balance test leakage detection device according to claim 2, characterized in that: The abutment member comprises a rotating disk rotatably connected to the blocking plate, the rotating disk is provided with an arc block, the arc block is provided with a wedge-shaped portion and a flat portion, and a connecting rod is fixed to the inner wall of the detection chamber.

4. A water balance test leakage detection device according to claim 3, characterized in that: The valve comprises a valve body communicated with a water delivery pipeline and a valve stem rotatably connected to the valve body.

5. A water balance test leakage detection device according to claim 4, characterized in that: It also includes a driving disk, on which a linkage rod is hinged, and on which a connecting disk is fixed, and the valve stem is hinged with the linkage rod and the connecting disk.

6. A water balance test leakage detection device according to claim 5, characterized in that: The detection chamber is rotatably connected with a driving shaft, and the driving shaft is limitedly connected to the driving disc.

7. A water balance test leakage detection device according to claim 5, characterized in that: The driving disk and the rotating disk are connected in a limiting manner.

8. A water balance test leakage detection device according to claim 7, characterized in that: When the driving disc drives the valve to close, the blocking plate is away from the water pipe under the action of the elastic member, and when the driving disc drives the valve to open, the connecting rod and the flat portion collide with each other to force the blocking plate away from the detection chamber.

9. A water balance test leakage detection device according to claim 8, characterized in that: An arc-shaped groove is constructed on the detection chamber, and a vertical rod is fixed on the rotating disk. The vertical rod passes through the arc-shaped groove and is fixed to the driving disk.

10. A water balance test leakage detection device according to claim 9, characterized in that: Two valves are adjacently arranged on the water delivery pipeline, and the detection chamber is located between the two adjacent valves.

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