A pressure detection device for valves in a residential water supply network

Abstract

This utility model provides a valve pressure detection device for a residential water supply network, belonging to the field of valve detection technology. It includes a connecting pipe, which comprises a pipe body with a first and a second connector on its left and right sides, respectively. A third connector is located at the center of its top. An intermediate component is located at the third connector, with a mechanical pressure gauge mounted on its front side. A transmission rod extends through the mechanical pressure gauge and into the interior of the intermediate component. A fourth connector is located at the center of the top of the intermediate component, with an early warning device at the fourth connector. A piston mechanism is located at the third connector, penetrating the intermediate component and passing through the fourth connector into the early warning device. The piston mechanism engages with the transmission rod. This invention solves the problem that existing valves with pressure gauges lack early warning recording functions for overpressure events, making it impossible to record instantaneous overpressure times and creating a detection blind spot.

Description

Technical Field

[0001] This utility model relates to the field of valve testing technology, and more specifically, to a valve pressure testing device for a community water supply network. Background Technology

[0002] In modern urban water supply networks, residential water supply systems generally adopt a tree-like network structure of "main pipe - branch pipe," with each branch pipe leading to a household equipped with a control valve. Existing technology has disclosed a design scheme that directly integrates a pressure gauge into the valve structure. This scheme, by placing a pressure gauge on the valve body, allows inspection personnel to intuitively obtain real-time water pressure data through dial readings. This design can quickly locate areas of abnormal pressure in routine inspections and user repair scenarios, which is of positive significance for ensuring the stable operation of the water supply system.

[0003] However, water supply network pressure fluctuations are instantaneous and sudden. When water pumps start or stop, water hammer occurs in the network, or water consumption at the user end changes abruptly, instantaneous pressure peaks may occur at the valves. Existing pressure detection devices can only display the static pressure value at the moment of detection and lack the function of early warning and recording of overpressure events. That is, when instantaneous overpressure events occur, they are difficult to be detected by routine inspections, creating a monitoring blind spot. On the other hand, fatigue damage to valve seals caused by long-term pressure fluctuations cannot be warned in time, which may eventually lead to valve failure or even valve damage. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a valve pressure detection device for a community water supply network to solve the aforementioned problems.

[0005] This utility model is implemented as follows:

[0006] A pressure detection device for valves in a residential water supply network includes a connecting pipe. The connecting pipe includes a pipe body with a first connecting joint and a second connecting joint on its left and right sides, respectively. A third connecting joint is located at the center of its top. An intermediate component is located at the third connecting joint. A mechanical pressure gauge is located on the front side of the intermediate component. A transmission rod is located inside the mechanical pressure gauge and extends through the intermediate component. A fourth connecting joint is located at the center of the top of the intermediate component. An early warning device is located at the fourth connecting joint. A piston mechanism is located at the third connecting joint. The piston mechanism passes through the intermediate component and extends through the fourth connecting joint into the early warning device. The piston mechanism engages with the transmission rod.

[0007] Furthermore, the inner top and bottom of the third connector have limiting flanges, and the third connector is located at the two limiting flanges to form a first cavity.

[0008] Furthermore, the bottom of the intermediate component is disposed together with the third connector, the middle part has a second cavity communicating with the first cavity, the upper part of the second cavity is a third cavity communicating with the fourth connector, the top of the fourth connector is provided with a top plate, and the inner sidewall of the third cavity is provided with a limit frame.

[0009] Furthermore, the warning device includes a housing, the bottom of which is threadedly connected to the fourth connector. The inner side of the housing near the center has a fourth cavity, inside which a hollow sphere is disposed. A marker is disposed inside the hollow sphere. Limiting claws are arrayed at the center of the top and bottom of the fourth cavity, and the limiting claws enclose the hollow sphere.

[0010] Furthermore, the marker is a red foam ball.

[0011] Furthermore, the outer shell located in the fourth cavity is transparent.

[0012] Furthermore, the mechanical pressure gauge includes a housing, inside which a dial is arranged at the front, a pointer is arranged on the front side of the dial, the shaft of the pointer passes through the center of the dial to its rear, and a first gear is arranged at the rear end of the shaft.

[0013] Furthermore, a hinge seat is provided on the rear side wall of the second cavity, one end of the transmission rod is movably disposed in the hinge seat, and the other end extends through the interior of the housing. A second gear that meshes with the first gear is provided at the front end of the transmission rod. A first fixing frame is provided on the rear side of the dial, and a second fixing frame is provided on the rear side wall inside the housing. The transmission rod passes through the two fixing frames.

[0014] Furthermore, the piston mechanism includes a piston rod, the bottom end of which is provided with a valve disc, which is disposed in the first cavity. The other end of the piston rod extends through the limiting frame inside the intermediate component and the top plate, and the top of the piston rod is a sharp end. A limiting piece is provided on the outer surface of the piston rod, which is located between the top plate and the limiting frame. A compression spring is provided between the top plate and the limiting piece.

[0015] Furthermore, a side groove is formed on the outer surface of the piston rod near the middle, and a rack is provided inside the side groove. A third gear that meshes with the rack is provided on the outer surface of the transmission rod near the rack.

[0016] The beneficial effects of this utility model are as follows: Pressure monitoring and overpressure early warning are achieved through a dual mechanism of mechanical linkage and physical warning. When the water pressure in the pipeline increases, the pressure pushes the piston rod upward. The linear displacement is converted into the angular displacement of the mechanical pressure gauge pointer through rack and pinion transmission, thus realizing a numerical display of the water pressure. When the pressure reaches a preset threshold, the sharp tip of the piston rod pierces the hollow sphere fixed by the limiting claw inside the early warning device, releasing the internal red foam marker, which forms a visual warning through the transparent shell. Compared with existing integrated pressure gauge valves, this solution has the following advantages: instantaneous overpressure capture capability, achieving pressure change response through a purely mechanical structure, breaking through the limitation of traditional pressure gauges that only display static values, effectively solving the problem of blind spots in the monitoring of instantaneous overpressure events; physical warning retention mechanism, where the red marker cannot automatically recover after scattering, providing direct evidence for subsequent tracing of overpressure events and compensating for time gaps in routine inspections; and a threaded connection design for the early warning module, facilitating subsequent replacement and reducing overall maintenance costs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the valve pressure detection device provided for an embodiment of this utility model;

[0019] Figure 2 A cross-sectional structural schematic diagram of the valve pressure detection device provided for an embodiment of this utility model;

[0020] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 for Figure 2 Enlarged view of point B in the middle;

[0022] Figure 5 A partial cross-sectional view of the intermediate component provided for an embodiment of this utility model.

[0023] In the diagram: 10. Connecting pipe; 11. Pipe body; 12. First connecting joint; 13. Second connecting joint; 14. Third connecting joint; 1401. First cavity; 15. Piston mechanism; 1501. Piston rod; 15011. Side groove; 15012. Sharp end; 15013. Limiting plate; 1502. Valve disc; 1503. Rack; 20. Intermediate component; 21. Second cavity; 2101. Hinge seat; 22. Third cavity; 2201 1. Limiting bracket; 23. Fourth connector; 2301. Top plate; 24. Compression spring; 30. Mechanical pressure gauge; 31. Housing; 32. Dial; 33. Pointer; 34. First gear; 35. Transmission rod; 3501. Second gear; 3502. Third gear; 3503. First fixing bracket; 3504. Second fixing bracket; 40. Warning device; 41. Outer shell; 42. Fourth cavity; 43. Hollow sphere; 44. Limiting claw. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0026] like Figure 1-2As shown, this utility model provides a valve pressure detection device for a community water supply network, including a connecting pipe 10. The connecting pipe 10 includes a pipe body 11, with a first connecting joint 12 and a second connecting joint 13 on its left and right sides, respectively. The device can be installed between the water supply pipe and the valve through the first connecting joint 12 and the second connecting joint 13, thereby detecting the pressure value at the valve. A third connecting joint 14 is provided at the center of its top, and an intermediate component 20 is provided at the third connecting joint 14. A mechanical pressure gauge 30 is provided on the front side of the intermediate component 20, and a transmission rod 35 is provided inside the mechanical pressure gauge 30, which extends to the inside of the intermediate component 20. A fourth connector 23 is provided at the top center of the 20, and an early warning device 40 is provided at the fourth connector 23. A piston mechanism 15 is provided at the third connector 14. The piston mechanism 15 passes through the intermediate part 20 and passes through the fourth connector 23 to the inside of the early warning device 40. The piston mechanism 15 meshes with the transmission rod 35. This device converts the internal pressure of the valve into an intuitive pressure reading through the mechanical transmission between the piston mechanism 15 and the mechanical pressure gauge 30. At the same time, when the pressure reaches the threshold, it destroys the hollow sphere 43 inside the early warning device 40, causing the marker inside the hollow sphere 43 to disperse, so that the staff can see it intuitively.

[0027] In this embodiment, the inner top and bottom of the third connector 14 are respectively provided with limiting flanges. The two limiting flanges make the inner channel of the third connector 14 form a first cavity 1401, also known as a piston cavity, to accommodate and restrict the movement of the valve disc 1502 on the piston rod 1501.

[0028] In this embodiment, the bottom of the intermediate component 20 is disposed together with the third connector 14, the middle part of which has a second cavity 21 communicating with the first cavity 1401, the upper part of the second cavity 21 is the third cavity 22, which communicates with the fourth connector, the top of the fourth connector is provided with a top plate 2301, and the inner sidewall of the third cavity 22 is provided with a limit frame 2201.

[0029] In this embodiment, the warning device 40 includes a housing 41. The bottom of the housing 41 is threadedly connected to the fourth connector 23. The inner side of the housing 41 near the middle has a fourth cavity 42. A hollow sphere 43 is disposed inside the fourth cavity 42. A marker is disposed inside the hollow sphere 43. Limiting claws 44 are arranged in an array at the top and bottom center of the fourth cavity 42. The limiting claws 44 enclose the hollow sphere, preventing the hollow sphere 43 from moving freely inside the fourth cavity 42, which would make it difficult for the subsequent piston rod 1501 to damage it.

[0030] The marker is a red foam ball. The outer shell 41 is transparent in the fourth cavity 42. That is, after the piston rod 1501 punctures the hollow sphere 43, the red foam ball disperses inside the fourth cavity 42, making it easy to observe.

[0031] like Figure 2-3 As shown, the mechanical pressure gauge 30 includes a housing 31. Inside the housing 31, a dial 32 is arranged at the front. The dial 32 is provided with corresponding pressure scales. A pointer 33 is arranged on the front side of the dial 32. The shaft of the pointer 33 passes through the center of the dial 32 to its rear, and a first gear 34 is provided at the rear end of the shaft.

[0032] Furthermore, a hinge seat 2101 is provided on the rear side wall of the second cavity 21. One end of the transmission rod 35 is movably disposed in the hinge seat 2101, and the other end extends through the interior of the housing 31. A second gear 3501 that meshes with the first gear 34 is provided at the front end of the transmission rod 35. A first fixing frame 3503 is provided on the rear side of the dial 32, and a second fixing frame 3504 is provided on the rear side wall inside the housing 31. The transmission rod 35 passes through the two fixing frames.

[0033] like Figure 2 and Figure 4 As shown, the piston mechanism 15 includes a piston rod 1501. A valve disc 1502 is provided at the bottom end of the piston rod 1501. The valve disc 1502 is located in the first cavity 1401. The other end of the piston rod 1501 extends through to the limiting frame 2201 and the top plate 2301 inside the intermediate part 20. The top of the piston rod 1501 is a sharp end 15012. A limiting piece 15013 is provided on the outer surface of the piston rod 1501. The limiting piece 15013 is located between the top plate 2301 and the limiting frame 2201. A compression spring 24 is provided between the top plate 2301 and the limiting piece 15013. That is, when the limiting piece 15013 abuts against the limiting frame 2201, the valve disc 1502 is located at the bottom of the first cavity 1401, and the sharp end 15012 is located below the fourth cavity 42. When the compression spring 24 is fully contracted, the sharp end 15012 is located inside the fourth cavity 42.

[0034] like Figure 5 The piston rod 1501 has a side groove 15011 on the outer surface near the middle, and a rack 1503 is provided inside the side groove 15011. The transmission rod 35 has a third gear 3502 that meshes with the rack 1503 on the outer surface near the rack 1503. That is, under the pressure inside the connecting pipe 10, the piston rod 1501 moves up and down inside the intermediate part 20. At this time, the transmission rod 35 converts this up and down movement into the rotation of the pointer 33, that is, the direct conversion of pressure.

[0035] Specifically, the working principle of this community water supply network valve pressure detection device is as follows: The pressure detection device is installed between the water supply pipe and the valve. When the water pressure rises, it exerts an upward force on the valve disc 1502, causing the piston mechanism 15 to move upward as a whole. At this time, the rack 1503 on the piston rod 1501 drives the third gear 3502 on the transmission rod 35 to rotate. Then, through the interaction of the second gear 3501 and the first gear 34 at the other end, the pointer 33 is driven to convert the water pressure into the actual reading on the dial 32, which is convenient for recording the static pressure reading. Furthermore, when the water pressure reaches the set threshold, the sharp end 15012 at the top of the piston rod 1501 punctures the hollow sphere 43, causing the internal marker to disperse. Afterwards, when the staff sees the marker in the pre-tightening device disperse, they can make further detection plans to reduce the possibility of valve failure or even damage. Through the above structure, the problem of existing valves with pressure gauges lacking the function of early warning recording of overpressure events and being unable to record the instantaneous overpressure time, thus forming a detection blind spot, is solved.

[0036] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the substance and scope of the present invention. Various modifications made by those skilled in the art to the above embodiments after reading this specification are all within the scope of protection of the present invention.

Claims

1. A valve pressure detection device for a residential water supply network, characterized in that, The device includes a connecting pipe (10), which includes a pipe body (11), with a first connecting joint (12) and a second connecting joint (13) on its left and right sides respectively. A third connecting joint (14) is provided at the center of its top. An intermediate part (20) is provided at the third connecting joint (14). A mechanical pressure gauge (30) is provided on the front side of the intermediate part (20). A transmission rod (35) is provided inside the mechanical pressure gauge (30) and extends to the inside of the intermediate part (20). A fourth connecting joint (23) is provided at the center of the top of the intermediate part (20). A warning device (40) is provided at the fourth connecting joint (23). A piston mechanism (15) is provided at the third connecting joint (14). The piston mechanism (15) extends through the intermediate part (20) and passes through the fourth connecting joint (23) to the inside of the warning device (40). The piston mechanism (15) meshes with the transmission rod (35).

2. The pressure detection device for valves in a residential water supply network according to claim 1, characterized in that, The third connector (14) has a limiting flange at its inner top and bottom, and the third connector (14) is located at the two limiting flanges to form a first cavity (1401).

3. The pressure detection device for valves in a residential water supply network according to claim 2, characterized in that, The bottom of the intermediate component (20) is disposed together with the third connector (14), and the middle part has a second cavity (21) communicating with the first cavity (1401). The upper part of the second cavity (21) is a third cavity (22), which communicates with the fourth connector. The top of the fourth connector is provided with a top plate (2301), and the inner side wall of the third cavity (22) is provided with a limit frame (2201).

4. The pressure detection device for valves in a residential water supply network according to claim 3, characterized in that, The warning device (40) includes a housing (41), the bottom of which is threaded to the fourth connector (23). The inner side of the housing (41) near the center has a fourth cavity (42). A hollow sphere (43) is disposed inside the fourth cavity (42). A marker is disposed inside the hollow sphere (43). Limiting claws (44) are arranged in an array at the top and bottom center of the fourth cavity (42). The limiting claws (44) enclose the hollow sphere.

5. The pressure detection device for valves in a residential water supply network according to claim 4, characterized in that, The marker is a red foam ball.

6. The pressure detection device for valves in a residential water supply network according to claim 4, characterized in that, The outer shell (41) located in the fourth cavity (42) is transparent.

7. The pressure detection device for valves in a residential water supply network according to claim 4, characterized in that, The mechanical pressure gauge (30) includes a housing (31), and a dial (32) is arranged at the front of the interior of the housing (31). A pointer (33) is arranged on the front side of the dial (32). The shaft of the pointer (33) passes through the center of the dial (32) to its rear, and a first gear (34) is arranged at the rear end of the shaft.

8. The pressure detection device for valves in a residential water supply network according to claim 7, characterized in that, A hinge seat (2101) is provided on the rear side wall of the second cavity (21). One end of the transmission rod (35) is movably disposed in the hinge seat (2101), and the other end extends through the interior of the housing (31). The front end of the transmission rod (35) is provided with a second gear (3501) that meshes with the first gear (34). A first fixing frame (3503) is provided on the rear side of the dial (32), and a second fixing frame (3504) is provided on the rear side wall inside the housing (31). The transmission rod (35) passes through the two fixing frames.

9. A pressure detection device for valves in a residential water supply network according to claim 7, characterized in that, The piston mechanism (15) includes a piston rod (1501), a valve disc (1502) is provided at the bottom end of the piston rod (1501), the valve disc (1502) is provided in the first cavity (1401), the other end of the piston rod (1501) passes through the limiting frame (2201) inside the intermediate part (20) and the top plate (2301), and the top of the piston rod (1501) is a sharp end (15012). A limiting piece (15013) is provided on the outer surface of the piston rod (1501), the limiting piece (15013) is located between the top plate (2301) and the limiting frame (2201), and a compression spring (24) is provided between the top plate (2301) and the limiting piece (15013).

10. A pressure detection device for valves in a residential water supply network according to claim 9, characterized in that, The piston rod (1501) has a side groove (15011) on the outer surface near the middle, and a rack (1503) is provided inside the side groove (15011). The transmission rod (35) has a third gear (3502) on the outer surface near the rack (1503) that meshes with the rack (1503).

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