A basement water pressure feedback device with water leakage detection function

Abstract

The present invention belongs to the field of water pressure change detection, and specifically discloses a basement water pressure feedback device with a water leakage detection function, including a pipeline assembly, a sliding sensing alarm mechanism, a water outlet sensing mechanism and a water inlet sensing mechanism, wherein the pipeline assembly includes a water delivery pipeline, a water pipe and a water valve. In the process of pressure detection, the present invention determines whether there is a water leakage by monitoring the change in pressure. In order to expand the scope of application of the device and solve the pressure changes caused by different installation positions, the present invention discloses a technical solution based on a compensation fine-tuning component, which can compensate for the slight errors caused by the difference in installation positions through fine-tuning. The present invention also creatively introduces the water pressure in the water pipe into the polygonal shell by using a water pressure sensing hose and a water outlet pressure sensing component, thereby performing secondary compensation on the position of the water outlet connecting rod, thereby avoiding excessive fluctuations in the position of the center slide during normal water use.

Description

Technical Field

[0001] The invention belongs to the technical field of water pressure measurement, and specifically refers to a basement water pressure feedback device with a water leakage detection function. Background Art

[0002] The supply of tap water is generally transported to higher floors through a pump room located in the basement. Since the pump room is closed for a long time, leaks in the water pipes inside the pump room are relatively difficult to detect. In addition, since the pipes in the pump room are complex and have a long total length, it is difficult to fully detect whether there are leaks in these pipes.

[0003] Most of the current methods are a compromise approach of "increasing the frequency of daily inspections", but this method undoubtedly increases the labor cost; based on this, the present invention proposes a technical solution that monitors the pressure and determines whether there is a water leak from the side. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention proposes a technical solution for detecting the relative pressure fluctuation between the water inlet and the water outlet. The present invention is essentially a pressure detection feedback device. During the pressure detection process, it is determined whether there is a water leakage by monitoring the pressure change. In order to expand the scope of application of the device and solve the pressure changes caused by different installation positions, the present invention discloses a technical solution based on a compensating fine-tuning component, which can compensate for the slight errors caused by the difference in installation positions through fine-tuning.

[0005] Furthermore, since water is also needed in the basement, if the water inlet of the device is directly designed at the outlet of the pump and the water outlet is designed at the outlet of the basement, then normal water use in the basement will also cause water pressure fluctuations at the water inlet and outlet. In order to overcome this false alarm situation, the present invention creatively introduces the water pressure in the water pipe into the polygonal shell through the use of a water pressure sensing hose and a water outlet pressure sensing assembly, thereby performing secondary compensation on the position of the connecting rod at the water outlet end, thereby avoiding excessive fluctuations in the position of the center slide during normal water use.

[0006] The technical solution adopted by the present invention is as follows: The present invention proposes a basement water pressure feedback device with a water leakage detection function, including a pipeline assembly, a sliding sensing alarm mechanism, a water outlet sensing mechanism and a water inlet sensing mechanism, the pipeline assembly includes a water supply pipeline, a water use pipeline and a water use valve, the water supply pipeline is provided with a water inlet part and a water outlet part, the water use pipeline is located in the middle position between the water inlet part and the water outlet part, the water use pipeline and the water supply pipeline are through-connected, and the water use valve is arranged on the water use pipeline; the water outlet sensing mechanism is arranged at one end of the sliding alarm assembly close to the water outlet part, and the water inlet sensing mechanism is arranged at one end of the sliding alarm assembly close to the water inlet part.

[0007] Through the water outlet sensing mechanism and the water inlet sensing mechanism, the water pressure at the water inlet and the water outlet can be sensed respectively, and by comparing the water pressures of the two, the technical purpose of determining whether there is a water leakage can be achieved. This method determines the water leakage through the pressure at two points at both ends, and has a relatively simple structure. It is suitable for situations where the detected section is long or complicated and difficult to monitor throughout the entire process. However, the detected section may also be using water. In order to avoid the embarrassing situation of detecting water use as a water leakage, the present invention also creatively proposes a water outlet sensing mechanism, which uses the water end to perform pressure compensation on the water outlet, thereby avoiding excessive position fluctuations of the central slide.

[0008] Furthermore, the sliding sensing alarm mechanism includes a sliding alarm component, a sliding support component and a sliding feedback component, the sliding alarm component is arranged on the water supply pipeline, the sliding support component is arranged in the sliding alarm component, and the sliding feedback component is arranged in the sliding alarm component.

[0009] Furthermore, the sliding alarm component includes a water pressure sensing shell, a position switch, a sliding contact and an audible and visual alarm. The water pressure sensing shell and the water supply pipeline are connected, and the two ends of the water pressure sensing shell are respectively provided with a water inlet sensing end and a water outlet sensing end. The water inlet sensing end and the water supply pipeline are connected at the water inlet part, and the water outlet sensing end and the water supply pipeline are connected at the water outlet part. A central window part is provided in the middle position of the water pressure sensing shell, and the position switch is arranged in the central window part. The position of the position switch in the central window part can be adjusted, the sliding contact is arranged on the sliding feedback component, and the audible and visual alarm is arranged on the central window part.

[0010] Through the position switch that can flexibly adjust its position, the sliding amplitude of the sliding contact in two directions when the alarm is triggered can be set separately. On the one hand, the alarm threshold can be flexibly adjusted according to actual working conditions. On the other hand, it can also avoid the alarm being triggered due to the slight sliding of the central slide itself.

[0011] As a further preferred embodiment of the present invention, the sliding support assembly includes a fixed circular ring and a sliding guide rod, the fixed circular ring is fixedly connected to the interior of the water pressure sensing shell, the sliding guide rod is fixedly connected to the fixed circular ring, and the sliding guide rod is evenly distributed in a ring in a plurality of groups.

[0012] By means of the fixedly arranged fixed ring and the sliding guide rod, a central equilibrium position can be established for the sliding of the central slide plate, thereby preventing the sliding feedback component from being translated as a whole when the pressure fluctuates.

[0013] As a further preferred embodiment of the present invention, the sliding feedback assembly includes a central slide, a side slide and a slide counter spring, the central slide is snap-fitted and slidably arranged on the sliding guide rod, the side slides are snap-fitted and slidably arranged on the sliding guide rod, the side slides are symmetrically arranged on both sides of the central slide, the slide counter spring is arranged between the central slide and the side slide, and the sliding contact is fixedly connected to the central slide.

[0014] The elastic force of the skateboard against the spring is relatively large, which is used to counteract the water pressure, thereby establishing its own equilibrium position through the size of the water pressure. The sliding resistance of the central skateboard is relatively small, so that it can always be located in the center of the two side skateboards.

[0015] Furthermore, the water outlet sensing mechanism includes a water outlet pressure sensing component and a water pressure compensation component. The water outlet pressure sensing component is slidably arranged in the water pressure sensing housing, and the water pressure compensation component is arranged in the water outlet pressure sensing component.

[0016] The water outlet sensing mechanism can not only sense the water pressure at the water outlet, but also compensate for the water outlet by using the pressure in the water pipe, thereby reducing the normal pressure fluctuations caused by water use, so that normal water use will not cause excessive sliding of the center slide and alarm.

[0017] Furthermore, the water outlet pressure sensing component includes a water outlet end piston, a polygonal shell and a water outlet end connecting rod, the water outlet end piston is snap-fitted and slidably arranged in the water pressure sensing shell, the polygonal shell is fixedly connected to the water outlet end piston, a polygonal blind hole is provided on the polygonal shell, a blind hole step is provided at the bottom of the polygonal blind hole, a compensation joint is also provided at the bottom of the polygonal blind hole, one end of the water outlet end connecting rod is fixedly connected to the side slide close to the water outlet, and the other end of the water outlet end connecting rod is provided with a polygonal sliding portion matching the polygonal blind hole.

[0018] Through the relatively sliding water outlet piston and water outlet connecting rod, the side slide can be adjusted secondary based on the pressure in the water pipe on the basis of position feedback based on the water outlet piston. The extreme position of the water outlet connecting rod relative to the polygonal shell can be limited by the blind hole step portion, so that when the water valve is closed, the cooperation between the polygonal shell and the water outlet connecting rod does not work. At this time, the position of the center slide is only related to the positions of the water outlet piston and the water inlet piston.

[0019] As a further preferred embodiment of the present invention, the water pressure compensation component includes a water pressure sensing hose and a piston pre-tensioning spring. One end of the water pressure sensing hose is snap-fitted into the compensation joint. The water pressure sensing hose is fixedly connected to one end of the water pressure sensing shell. The other end of the water pressure sensing hose is connected to the water pipe. The water valve is located upstream of the water pressure sensing hose. The piston pre-tensioning spring is arranged between the fixed ring and the water outlet piston.

[0020] The piston preload spring 1 and the slide plate counter spring have the same parameters. The liquid in the water pipe can be introduced into the polygonal shell through the water pressure sensing hose, thereby realizing the position compensation of the connecting rod at the water outlet end.

[0021] Furthermore, the water inlet end sensing mechanism includes a water inlet pressure sensing component and a compensation fine-tuning component. The water inlet pressure sensing component is slidably arranged in the water pressure sensing housing, and the compensation fine-tuning component is arranged on the water inlet pressure sensing component.

[0022] Furthermore, the water inlet pressure sensing component includes a water inlet end piston, a water inlet end long rod and two piston pre-tensioning springs. The water inlet end piston is slidably arranged in the water pressure sensing shell, and the two piston pre-tensioning springs are arranged between the water inlet end piston and the fixed ring. The water inlet end piston and the water inlet end long rod are fixedly connected, one end of the water inlet end long rod is fixedly connected to the side slide plate close to the water inlet part, and the other end of the water inlet end long rod is provided with a threaded portion.

[0023] The water pressure at the water inlet can be sensed by the water inlet pressure sensing component, and the pressure at the water inlet is used as a reference standard. The pressure at the water outlet and the water pipe is then superimposed and compensated, so as to determine whether there is a water leakage between the water inlet and the water outlet.

[0024] As a further preferred embodiment of the present invention, the compensation fine-tuning assembly includes a compensation nut and a compensation spring, the compensation nut and the threaded portion are threadedly connected, and the compensation spring is arranged between the compensation nut and the water pressure sensing housing.

[0025] Since the water inlet and outlet are in different positions, the center slide may not be balanced in the center position even if there is no leakage or water use due to different distances to the elbow and water flow forms. At this time, the tension applied by the compensation spring to the long rod at the water inlet end can be adjusted by rotating the compensation spring, thereby fine-tuning the balance position of the center slide, thereby greatly relaxing the requirements for the installation position of the water pressure sensing housing.

[0026] The beneficial effects achieved by the present invention using the above structure are as follows:

[0027] (1) The water pressure at the water inlet and water outlet can be sensed by the water outlet sensing mechanism and the water inlet sensing mechanism respectively. By comparing the water pressures of the two, the technical purpose of determining whether there is a water leak can be achieved. This method determines the water leak by the pressure at two points at both ends. The structure is relatively simple and is suitable for situations where the detected section is long or complicated and difficult to monitor throughout the entire process. However, the detected section may also be water-used. In order to avoid the embarrassing situation of detecting water use as a water leak, the present invention also creatively proposes a water outlet sensing mechanism. By using the water end to compensate the water outlet for pressure, the central slide plate can be prevented from having excessive position fluctuations.

[0028] (2) Through the position switch that can flexibly adjust its position, the sliding amplitude of the sliding contact in two directions when the alarm is triggered can be set separately. On the one hand, the alarm threshold can be flexibly adjusted according to the actual working conditions. On the other hand, it can also avoid the alarm being triggered due to the small sliding amplitude of the central slide.

[0029] (3) By means of the fixedly arranged fixed ring and the sliding guide rod, the central equilibrium position can be established for the sliding of the central slide, thereby preventing the overall translation of the sliding feedback component when the pressure fluctuates.

[0030] (4) The elastic force of the skateboard against the spring is relatively large, which is used to counteract the water pressure, thereby establishing its own equilibrium position through the magnitude of the water pressure. The sliding resistance of the center skateboard is relatively small, so that it can always be located in the center position of the two side skateboards.

[0031] (5) The water outlet sensing mechanism can not only sense the water pressure at the water outlet, but also compensate the water outlet by using the pressure in the water pipe, thereby reducing the normal pressure fluctuation caused by water use, so that normal water use will not cause excessive sliding of the center slide and alarm.

[0032] (6) Through the relatively sliding water outlet piston and water outlet connecting rod, the side slide plate can be adjusted again based on the pressure in the water pipe on the basis of the position feedback of the water outlet piston. The blind hole step portion can limit the extreme position of the water outlet connecting rod relative to the polygonal shell, so that when the water valve is closed, the cooperation between the polygonal shell and the water outlet connecting rod does not work. At this time, the position of the center slide plate is only related to the position of the water outlet piston and the water inlet piston.

[0033] (7) The piston preload spring and the slide plate counter spring have the same parameters. The liquid in the water pipe can be introduced into the polygonal shell through the water pressure sensing hose, thereby realizing the position compensation of the connecting rod at the water outlet end.

[0034] (8) The water pressure at the water inlet can be sensed by the water inlet pressure sensing component. The pressure at the water inlet is used as a reference standard. The pressure at the water outlet and the water pipe is then superimposed and compensated. This can determine whether there is a water leak between the water inlet and the water outlet.

[0035] (9) Since the water inlet and outlet are at different positions, the center slide may not be balanced at the center position even if there is no leakage or water use due to different distances to the elbow and water flow patterns. In this case, the tension applied by the compensation spring to the long rod at the water inlet end can be adjusted by rotating the compensation spring, thereby fine-tuning the balance position of the center slide, thereby greatly relaxing the requirements for the installation position of the water pressure sensing housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 A three-dimensional diagram of a basement water pressure feedback device with a water leakage detection function proposed by the present invention;

[0037] Figure 2 This is a front view of a basement water pressure feedback device with a water leakage detection function proposed by the present invention;

[0038] Figure 3 This is a left view of a basement water pressure feedback device with a water leakage detection function proposed by the present invention;

[0039] Figure 4 A top view of a basement water pressure feedback device with a water leakage detection function proposed by the present invention;

[0040] Figure 5 for Figure 3 A cross-sectional view along the cutting line AA;

[0041] Figure 6 for Figure 2 A cross-sectional view along the cutting line BB;

[0042] Figure 7 This is a structural schematic diagram of an exploded view of a basement water pressure feedback device with a water leakage detection function proposed by the present invention;

[0043] Figure 8 for Figure 5 A partial enlarged view of point Ⅰ in the middle;

[0044] Fig. 9 for Figure 5 A partial enlarged view of the middle II;

[0045] Fig.10 for Figure 5 A partial enlarged view of the middle part III;

[0046] Fig.11 for Figure 7 A partial enlarged view of the middle IV;

[0047] Fig.12 Schematic diagram of the position of the sliding feedback component in different states.

[0048] Among them, 1. pipeline assembly, 2. sliding sensing alarm mechanism, 3. water outlet sensing mechanism, 4. water inlet sensing mechanism, 5. water delivery pipeline, 6. water pipe, 7. water valve, 8. water inlet, 9. water outlet, 10. sliding alarm assembly, 11. sliding support assembly, 12. sliding feedback assembly, 13. water pressure sensing shell, 14. position switch, 15. sliding contact, 16. sound and light alarm, 17. fixed ring, 18. sliding guide rod, 19. center slide, 20. side slide, 21. slide counter spring, 22. center window, 23. water inlet Sensing end, 24, water outlet sensing end, 25, water outlet pressure sensing assembly, 26, water pressure compensation assembly, 27, water outlet end piston, 28, polygonal shell, 29, water outlet end connecting rod, 30, water pressure sensing hose, 31, piston preload spring 1, 32, polygonal blind hole, 33, blind hole step part, 34, compensation joint, 35, polygonal sliding part, 36, water inlet pressure sensing assembly, 37, compensation fine-tuning assembly, 38, water inlet end piston, 39, water inlet end long rod, 40, piston preload spring 2, 41, compensation nut, 42, compensation spring, 43, threaded part.

[0049] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0050] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0051] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0052] like Figure 1 to Figure 11As shown, the present invention proposes a basement water pressure feedback device with a water leakage detection function, including a pipeline component 1, a sliding sensing alarm mechanism 2, a water outlet sensing mechanism 3 and a water inlet sensing mechanism 4, the pipeline component 1 includes a water delivery pipeline 5, a water pipe 6 and a water valve 7, the water delivery pipeline 5 is provided with a water inlet 8 and a water outlet 9, the water pipe 6 is located in the middle of the water inlet 8 and the water outlet 9, the water pipe 6 and the water delivery pipeline 5 are connected through, and the water valve 7 is arranged on the water pipe 6; the water outlet sensing mechanism 3 is arranged on one end of the sliding alarm component 10 close to the water outlet 9, and the water inlet sensing mechanism 4 is arranged on one end of the sliding alarm component 10 close to the water inlet 8.

[0053] Through the water outlet sensing mechanism 3 and the water inlet sensing mechanism 4, the water pressures at the water inlet 8 and the water outlet 9 can be sensed respectively, and by comparing the water pressures of the two, the technical purpose of determining whether there is a water leakage can be achieved. This method determines the water leakage by the pressures at two points at both ends, and has a relatively simple structure. It is suitable for situations where the length of the detected section is long or complicated and difficult to monitor throughout the entire process. However, the detected section may also be using water. In order to avoid the embarrassing situation of detecting water use as a water leakage, the present invention also creatively proposes a water outlet sensing mechanism 3, which can avoid excessive position fluctuations of the central slide 19 by using the water end to perform pressure compensation on the water outlet.

[0054] The sliding sensing alarm mechanism 2 includes a sliding alarm component 10 , a sliding support component 11 and a sliding feedback component 12 . The sliding alarm component 10 is arranged on the water pipe 5 , the sliding support component 11 is arranged in the sliding alarm component 10 , and the sliding feedback component 12 is arranged in the sliding alarm component 10 .

[0055] The sliding alarm assembly 10 includes a water pressure sensing shell 13, a position switch 14, a sliding contact 15 and an audible and visual alarm 16. The water pressure sensing shell 13 and the water pipe 5 are connected. The two ends of the water pressure sensing shell 13 are respectively provided with a water inlet sensing end 23 and a water outlet sensing end 24. The water inlet sensing end 23 and the water pipe 5 are connected at the water inlet part 8, and the water outlet sensing end 24 and the water pipe 5 are connected at the water outlet part 9. A central window part 22 is provided in the middle position of the water pressure sensing shell 13, and the position switch 14 is provided in the central window part 22. The position of the position switch 14 in the central window part 22 can be adjusted. The sliding contact 15 is provided on the sliding feedback assembly 12, and the audible and visual alarm 16 is provided on the central window part 22.

[0056] By means of the position switch 14 which can flexibly adjust its position, the sliding amplitude of the sliding contact 15 in two directions when the alarm is triggered can be set respectively. On the one hand, the alarm threshold can be flexibly adjusted according to the actual working conditions. On the other hand, it can also prevent the central slide 19 from triggering an alarm due to its own slight sliding amplitude.

[0057] The sliding support assembly 11 includes a fixed ring 17 and a sliding guide rod 18. The fixed ring 17 is fixedly connected to the inside of the water pressure sensing housing 13. The sliding guide rod 18 is fixedly connected to the fixed ring 17. A plurality of sliding guide rods 18 are evenly distributed in a ring.

[0058] By means of the fixedly arranged fixed ring 17 and the sliding guide rod 18 , a central equilibrium position can be established for the sliding of the central slide plate 19 , thereby preventing the sliding feedback assembly 12 from being translated as a whole when the pressure fluctuates.

[0059] The sliding feedback assembly 12 includes a central slide 19, a side slide 20 and a slide counter spring 21. The central slide 19 is slidably engaged on the sliding guide rod 18, the side slide 20 is slidably engaged on the sliding guide rod 18, the side slides 20 are symmetrically arranged on both sides of the central slide 19, the slide counter spring 21 is arranged between the central slide 19 and the side slides 20, and the sliding contact 15 is fixedly connected to the central slide 19.

[0060] The slide plate has a large elastic force against the spring 21, which is used to counteract the water pressure, thereby establishing its own equilibrium position through the size of the water pressure. The sliding resistance of the central slide plate 19 is small, so that it can always be located in the center position of the two side slide plates 20.

[0061] The water outlet sensing mechanism 3 includes a water outlet pressure sensing component 25 and a water pressure compensation component 26 . The water outlet pressure sensing component 25 is slidably disposed in the water pressure sensing housing 13 , and the water pressure compensation component 26 is disposed in the water outlet pressure sensing component 25 .

[0062] The water outlet sensing mechanism 3 can not only sense the water pressure at the water outlet, but also compensate the water outlet by using the pressure in the water pipe 6, thereby reducing the normal pressure fluctuations caused by water use, so that normal water use conditions will not cause excessive slippage and alarm of the central slide 19.

[0063] The water outlet pressure sensing component 25 includes a water outlet end piston 27, a polygonal shell 28 and a water outlet end connecting rod 29. The water outlet end piston 27 is slidably arranged in the water pressure sensing shell 13. The polygonal shell 28 is fixedly connected to the water outlet end piston 27. A polygonal blind hole 32 is provided on the polygonal shell 28. A blind hole step portion 33 is provided at the bottom of the polygonal blind hole 32. A compensation joint 34 is also provided at the bottom of the polygonal blind hole 32. One end of the water outlet end connecting rod 29 is fixedly connected to the side slide 20 close to the water outlet portion 9, and the other end of the water outlet end connecting rod 29 is provided with a polygonal sliding portion 35 matching the polygonal blind hole 32.

[0064] Through the relatively sliding water outlet piston 27 and water outlet connecting rod 29, the side slide plate 20 can make a secondary adjustment based on the pressure in the water pipe 6 on the basis of the position feedback based on the water outlet piston 27. The blind hole step portion 33 can limit the extreme position of the water outlet connecting rod 29 relative to the polygonal shell 28, so that when the water valve 7 is closed, the cooperation between the polygonal shell 28 and the water outlet connecting rod 29 does not work. At this time, the position of the center slide plate 19 is only related to the positions of the water outlet piston 27 and the water inlet piston 38.

[0065] The water pressure compensation component 26 includes a water pressure sensing hose 30 and a piston preload spring 31. One end of the water pressure sensing hose 30 is snap-fitted into the compensation joint 34. The water pressure sensing hose 30 is fixedly connected to one end of the water pressure sensing housing 13. The other end of the water pressure sensing hose 30 is connected to the water pipe 6. The water valve 7 is located upstream of the water pressure sensing hose 30. The piston preload spring 31 is arranged between the fixed ring 17 and the water outlet piston 27.

[0066] The piston preload spring 31 and the slide plate counter spring 21 have the same parameters. The liquid in the water pipe 6 can be introduced into the polygonal shell 28 through the water pressure sensing hose 30, thereby realizing the position compensation of the water outlet end connecting rod 29.

[0067] The water inlet end sensing mechanism 4 includes a water inlet pressure sensing component 36 and a compensation fine-tuning component 37 . The water inlet pressure sensing component 36 is slidably disposed in the water pressure sensing housing 13 , and the compensation fine-tuning component 37 is disposed on the water inlet pressure sensing component 36 .

[0068] The water inlet pressure sensing component 36 includes a water inlet end piston 38, a water inlet end long rod 39 and a piston preload spring 2 40. The water inlet end piston 38 is slidably arranged in the water pressure sensing housing 13. The piston preload spring 2 40 is arranged between the water inlet end piston 38 and the fixed ring 17. The water inlet end piston 38 and the water inlet end long rod 39 are fixedly connected. One end of the water inlet end long rod 39 is fixedly connected to the side slide 20 close to the water inlet part 8. The other end of the water inlet end long rod 39 is provided with a threaded portion 43.

[0069] The water pressure of the water inlet 8 can be sensed by the water inlet pressure sensing component 36, and the pressure of the water inlet 8 is used as a reference standard. Then, the pressure in the water outlet 9 and the water pipe 6 is superimposed and compensated, so as to determine whether there is a water leakage between the water inlet 8 and the water outlet 9.

[0070] The compensation fine-tuning assembly 37 includes a compensation nut 41 and a compensation spring 42 . The compensation nut 41 and the threaded portion 43 are threadedly connected, and the compensation spring 42 is disposed between the compensation nut 41 and the water pressure sensing housing 13 .

[0071] Since the water inlet 8 and the water outlet 9 are at different positions, the center slide 19 may not be balanced in the center position even if there is no leakage or water use due to different distances to the elbow and water flow forms. At this time, the tension applied by the compensation spring 42 to the long rod 39 at the water inlet end can be adjusted by rotating the compensation spring 42, thereby fine-tuning the balance position of the center slide 19, thereby greatly relaxing the requirements for the installation position of the water pressure sensing shell 13.

[0072] like Fig.12 As shown, a, b, and c respectively represent the positions of the sliding feedback component 12 in different states, the vertical dotted line represents the center position of the central window portion 22, the box in the middle represents the central slide 19, the boxes on both sides represent the side slides 20, and the broken lines between the boxes represent the slide counter springs 21. The cross-sectional areas of the water delivery pipeline 5 at the water inlet 8 and the water outlet 9 are equal; wherein: if the pipeline does not leak, a represents that when the water valve 7 is closed, the water pressures of the water inlet 8 and the water outlet 9 are equal, and at this time the central slide 19 is located at the center position of the central window portion 22; b represents that when the water valve 7 is opened, if the water is not used, When the pressure sensing hose 30 is used for pressure compensation, the water pressure at the water inlet 8 is greater than the water pressure at the water outlet 9, so the central slide 19 will deviate toward the side close to the water outlet 9, and the position switch 14 may contact the sliding contact 15, causing the alarm to be triggered; c represents that when the water valve 7 is opened, if the water pressure sensing hose 30 is used for pressure compensation, compared with the situation shown in b, the water outlet piston 27 will slide slightly toward the water outlet 9, but the side slide 20 close to the water outlet 9 will slide and advance toward the direction of the water inlet 8, so that the central slide 19 returns to the dotted line position;

[0073] If the pipeline leaks beyond a certain level, even if pressure compensation is performed using the water pressure sensing hose 30, the central slide plate 19 will still deviate toward the water outlet 9 as shown in the case b, and trigger an alarm.

[0074] When in use, the water inlet 8 is generally located near the water pump, the water outlet 9 is generally located where the pipe is about to leave the basement, and the water pressure sensing housing 13 is placed horizontally to eliminate the influence of gravity.

[0075] In the water-tight state, if the water valve 7 is closed, then since the cross-sectional areas of the water supply pipe 5 at the water inlet 8 and the water outlet 9 are the same, even if the water inlet pressure changes, the water pressure at the water inlet 8 and the water outlet 9 should remain equal. At this time, the polygonal sliding portion 35 retracts to the limit position in the polygonal blind hole 32, that is, the position where the polygonal sliding portion 35 and the blind hole step portion 33 are against each other. Since the position of the fixed ring 17 is fixed, the slide plate counter spring 21 and the piston preload spring 31 are compressed to the same extent. Therefore, relative to the center point of the central window portion 22, the positions of the water outlet end piston 27 and the water inlet end piston 38 are symmetrical. At this time, the positions of the two side slide plates 20 are also symmetrical, so the central slide plate 19 can just be in the center position of the central window portion 22;

[0076] If there is a slight difference in pressure due to the difference in actual position of the water inlet 8 and the water outlet 9 (such as the distance to the elbow), the center slide 19 may be offset to one side relative to the center position of the center window portion 22. At this time, the center slide 19 can be adjusted back to the center position of the center window portion 22 by rotating the compensation spring 42.

[0077] Since water is used between the water inlet 8 and the water outlet 9, if the water valve 7 is opened, the water pressure at the water outlet 9 will inevitably drop relative to the water inlet 8. At this time, the compression amount of the piston preload spring 31 will decrease, and the water outlet piston 27 will slide toward the water outlet 9. In this process, if the pressure is not compensated by the water pressure sensing hose 30, the water outlet connecting rod 29 and the polygonal housing 28 will slide toward the water outlet 9 as a whole with the side slide 20, and the center slide 19 will deviate toward the water outlet 9, thereby triggering an alarm.

[0078] In order to avoid this situation, the water pipe 6 and the polygonal shell 28 are connected downstream of the water valve 7 by using a water pressure sensing hose 30. Compared with the above situation, since the water outlet end connecting rod 29 extends out from the polygonal shell 28, although the water outlet end piston 27 will slide further toward the water outlet portion 9, the water outlet end connecting rod 29 and the side slide plate 20 can slide toward the water inlet portion 8. Since the position of the central slide plate 19 is always at the center of the two side slide plates 20, when the side slide plate 20 at one end close to the water outlet portion 9 slides toward the water inlet portion 8, the central slide plate 19 will also slide toward the water inlet portion 8, thereby returning to the vicinity of the center position of the central window portion 22;

[0079] Since the water pressure sensing hose 30 is connected to the downstream of the water valve 7, the water pressure sensing hose 30 can perform pressure compensation on the water outlet connecting rod 29 when the water valve 7 is opened. When the water valve 7 is closed, the long rod 39 at the water inlet end will maintain the state in which the polygonal sliding part 35 and the blind hole step part 33 are against each other.

[0080] By sensing relative pressure, it is possible to maintain a judgment on whether there is a water leak when the water inlet pressure changes; by using the water pressure sensing hose 30 for water pressure compensation, it is possible to avoid false alarms caused by reduced pressure in the water outlet 9 under normal water use conditions when the water valve 7 is open; when the water valve 7 is closed, the compensation function of the water pressure sensing hose 30 can be automatically turned off.

[0081] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0082] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A basement water pressure feedback device with water leakage detection function, characterized in that: The invention comprises a pipeline assembly (1), a sliding sensing alarm mechanism (2), a water outlet sensing mechanism (3) and a water inlet sensing mechanism (4); the pipeline assembly (1) comprises a water delivery pipeline (5), a water pipe (6) and a water valve (7); the water delivery pipeline (5) is provided with a water inlet portion (8) and a water outlet portion (9); the water pipe (6) is located in the middle of the water inlet portion (8) and the water outlet portion (9); the water pipe (6) and the water delivery pipeline (5) are connected in a through manner; and the water valve (7) is provided on the water pipe (6); The sliding sensing alarm mechanism (2) comprises a sliding alarm component (10), a sliding support component (11) and a sliding feedback component (12); the sliding alarm component (10) is arranged on the water delivery pipeline (5); the sliding support component (11) is arranged in the sliding alarm component (10); and the sliding feedback component (12) is arranged in the sliding alarm component (10); The water outlet sensing mechanism (3) is arranged on one end of the sliding alarm component (10) close to the water outlet portion (9), and the water inlet sensing mechanism (4) is arranged on one end of the sliding alarm component (10) close to the water inlet portion (8); The sliding feedback assembly (12) comprises a central slide plate (19), a side slide plate (20) and a slide plate counter spring (21); the central slide plate (19) is slidably mounted on the sliding guide rod (18); the side slide plates (20) are slidably mounted on the sliding guide rod (18); the side slide plates (20) are symmetrically mounted on both sides of the central slide plate (19); and the slide plate counter spring (21) is mounted between the central slide plate (19) and the side slide plates (20); The sliding alarm assembly (10) comprises a water pressure sensing housing (13), a position switch (14), a sliding contact (15) and an audible and visual alarm (16); the water pressure sensing housing (13) and the water delivery pipeline (5) are connected; two ends of the water pressure sensing housing (13) are respectively provided with a water inlet sensing end (23) and a water outlet sensing end (24); the water inlet sensing end (23) and the water delivery pipeline (5) are connected at the water inlet portion (8); the water outlet sensing end (24) and the water delivery pipeline (5) are connected at the water outlet portion (9); a central window portion (22) is provided in the middle of the water pressure sensing housing (13); the position switch (14) is provided in the central window portion (22); the position of the position switch (14) in the central window portion (22) can be adjusted; the sliding contact (15) is provided on the sliding feedback assembly (12); and the audible and visual alarm (16) is provided on the central window portion (22); The sliding contact (15) is fixedly connected to the central slide plate (19); The water outlet sensing mechanism (3) comprises a water outlet pressure sensing component (25) and a water pressure compensation component (26); the water outlet pressure sensing component (25) is slidably disposed in the water pressure sensing housing (13); and the water pressure compensation component (26) is disposed in the water outlet pressure sensing component (25); The water pressure compensation assembly (26) comprises a water pressure sensing hose (30) and a piston preload spring (31). One end of the water pressure sensing hose (30) is engaged in a compensation joint (34). The water pressure sensing hose (30) is fixed to one end of a water pressure sensing housing (13). The other end of the water pressure sensing hose (30) is connected to a water pipe (6). The water valve (7) is located upstream of the water pressure sensing hose (30). The piston preload spring (31) is arranged between the fixed ring (17) and the water outlet piston (27).

2. A basement water pressure feedback device with water leakage detection function according to claim 1, characterized in that: The sliding support assembly (11) comprises a fixed circular ring (17) and a sliding guide rod (18); the fixed circular ring (17) is fixedly connected to the inside of the water pressure sensing housing (13); the sliding guide rod (18) is fixedly connected to the fixed circular ring (17); and a plurality of groups of the sliding guide rods (18) are evenly distributed in a ring shape.

3. A basement water pressure feedback device with water leakage detection function according to claim 2, characterized in that: The water outlet pressure sensing component (25) comprises a water outlet piston (27), a polygonal shell (28) and a water outlet connecting rod (29); the water outlet piston (27) is slidably arranged in the water pressure sensing shell (13); the polygonal shell (28) is fixedly connected to the water outlet piston (27); a polygonal blind hole (32) is provided on the polygonal shell (28); a blind hole step portion (33) is provided at the bottom of the polygonal blind hole (32); a compensation joint (34) is also provided at the bottom of the polygonal blind hole (32); one end of the water outlet connecting rod (29) is fixedly connected to a side slide plate (20) close to the water outlet portion (9); and the other end of the water outlet connecting rod (29) is provided with a polygonal sliding portion (35) matching the polygonal blind hole (32).

4. A basement water pressure feedback device with water leakage detection function according to claim 3, characterized in that: The water inlet end sensing mechanism (4) comprises a water inlet pressure sensing component (36) and a compensation fine-tuning component (37); the water inlet pressure sensing component (36) is slidably disposed in the water pressure sensing housing (13); and the compensation fine-tuning component (37) is disposed on the water inlet pressure sensing component (36).

5. A basement water pressure feedback device with water leakage detection function according to claim 4, characterized in that: The water inlet pressure sensing component (36) comprises a water inlet end piston (38), a water inlet end long rod (39) and a second piston preload spring (40); the water inlet end piston (38) is slidably arranged in the water pressure sensing housing (13); the second piston preload spring (40) is arranged between the water inlet end piston (38) and the fixed ring (17); the water inlet end piston (38) and the water inlet end long rod (39) are fixedly connected; one end of the water inlet end long rod (39) is fixedly connected to a side slide plate (20) close to the water inlet portion (8); and the other end of the water inlet end long rod (39) is provided with a threaded portion (43).

6. A basement water pressure feedback device with water leakage detection function according to claim 5, characterized in that: The compensation fine-tuning assembly (37) comprises a compensation nut (41) and a compensation spring (42); the compensation nut (41) and the threaded portion (43) are threadedly connected; and the compensation spring (42) is disposed between the compensation nut (41) and the water pressure sensing housing (13).

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