A pressure detection device of a portable indoor fire hydrant

Abstract

The application relates to the technical field of fire hydrant detection matching equipment, in particular to a portable pressure detection device for indoor fire hydrants, which comprises a mounting shell, a connecting table, an isolation membrane, a liquid inlet, a liquid outlet pipe, a gas guide pipe, an electromagnetic valve A, a pressure boosting air pump, an air inlet pipe, an electromagnetic valve B, a pressure gauge, a liquid level sensor, a steady flow plate, a connecting seat, an exhaust pipe and a pressure valve, the mounting shell is horizontally arranged in the shape of an isosceles trapezoid, the connecting table is arranged on the inner wall of the mounting shell near the one-third position of the short side, the periphery of the isolation membrane is fixedly connected with the connecting table, the liquid inlet is arranged at the lower position of the right end of the mounting shell, the liquid outlet pipe is arranged on the lower surface of the right end of the mounting shell, a valve is arranged on the liquid outlet pipe, the two ends of the gas guide pipe are respectively connected with the upper surfaces of the mounting shells on the two sides of the isolation membrane, the application has the effects of being convenient to carry, effectively reducing the influence on the indoor environment and being convenient to operate.

Description

Technical Field

[0001] This application relates to the technical field of fire hydrant testing equipment, and in particular to a portable pressure testing device for indoor fire hydrants. Background Technology

[0002] Fire hydrants are common emergency water supply devices in the current fire protection field. They are connected to the water supply network through pipes, allowing for convenient and rapid water access in the event of a fire. However, when these devices are not used frequently, internal blockages and corrosion may occur, leading to a decrease or loss of their water supply capacity. This is especially true for fire hydrant structures located in shopping malls or large office areas. Due to their indoor location, maintenance and inspection are difficult. Large testing equipment cannot be accessed, and smaller equipment is inconvenient to connect. During testing, some fire water may splash out, affecting indoor facilities. Therefore, it is necessary to improve the structure of existing indoor fire hydrant testing equipment to solve these problems. Summary of the Invention

[0003] To address the shortcomings of existing technologies, the purpose of this application is to provide a portable indoor fire hydrant pressure detection device that is easy to carry, effectively reduces the impact on the indoor environment, and is easy to operate.

[0004] The above-mentioned objective of this application is achieved through the following technical solution:

[0005] A portable indoor fire hydrant pressure detection device includes: a mounting housing, a connecting platform, an isolation membrane, a liquid inlet, a liquid outlet pipe, a vent pipe, a solenoid valve A, a booster pump, a gas supply pipe, a solenoid valve B, a pressure gauge, a liquid level sensor, a flow stabilizer, a connecting seat, an exhaust pipe, and a pressure valve. The mounting housing is shaped like a horizontally placed isosceles trapezoid. The connecting platform is located on the inner wall of the mounting housing at one-third of its length from the shorter side. The isolation membrane is fixedly connected to the connecting platform around its perimeter. The liquid inlet is located at the lower right end of the mounting housing. The liquid outlet pipe is located on the lower surface of the right end of the mounting housing and is equipped with a valve. The two ends of the vent pipe are respectively connected to the upper surfaces of the mounting housing on both sides of the isolation membrane. The solenoid valve A is fixedly connected to the vent pipe. Near the left end, the booster pump is mounted on the surface of one side of the mounting housing. The output end of the booster pump is connected to a gas filling pipe. One end of the gas filling pipe is connected to the gas guide pipe corresponding to the right side of solenoid valve A. A solenoid valve B is installed on the pipe body near the booster pump. The pressure gauge is connected to the mounting housing corresponding to the left side of the isolation diaphragm. The liquid level sensor is vertically and equidistantly fixed to the inner wall of the mounting housing. The flow stabilizer is horizontally fixed to the inner wall of the mounting housing corresponding to the liquid level sensors at intervals. The connecting seat is fixedly connected to the middle position of the left end of the mounting housing. The middle part of the connecting seat is connected to the mounting housing. One end of the exhaust pipe is threaded to the middle part of the connecting seat. The pressure valve is installed on the exhaust pipe.

[0006] Optionally, it also includes a connecting hose, one end of which is connected to the liquid inlet, and the other end of which is connected to the outlet of the fire hydrant.

[0007] Optionally, it also includes a connector, which is fitted to the end of the connecting hose and is fitted to the outlet end of the fire hydrant.

[0008] Optionally, it also includes support leg A and support leg B. Support leg A is symmetrically and fixedly connected to the surface of the lower right side of the mounting housing, and support leg B is symmetrically and movably connected to the lower left side of the mounting housing. The lengths of support leg A and support leg B can be extended and adjusted and positioned at the adjusted height.

[0009] Optionally, a rubber sleeve is also included, which is fixedly connected to the outer surface of the air duct at the middle position.

[0010] Optionally, it also includes a snap-fit ​​plate, which is fixedly connected to the lower surface of the left side of the mounting housing, towards the center, and the support leg B is connected to the snap-fit ​​plate.

[0011] Optionally, it also includes a control module, which is fixedly connected to the surface of one side of the mounting housing. The control module is powered by its own power supply, and the output end of the control module is electrically connected to the input end of the booster pump.

[0012] This portable indoor fire hydrant pressure testing device, through its modular structure, enables wide connectivity to existing fire hydrant outlets and is easy to carry, reducing or even eliminating internal liquid splashing during measurement.

[0013] This portable indoor fire hydrant pressure detection device can firmly connect the perimeter of the isolation membrane through the set connection platform, thereby dividing the interior of the installation housing into two spaces, which are connected by a vent pipe to achieve pressure transmission.

[0014] This portable indoor fire hydrant pressure testing device is equipped with a booster pump that can pump air onto one side of the isolation membrane when water is present, thereby equalizing the pressure on both sides. This helps reduce the discharge of fire water under certain pressure and improves the convenience of testing. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the cross-sectional structure of the mounting housing provided in the embodiments of this application;

[0016] Figure 2 This is a schematic diagram of the bottom structure provided in an embodiment of this application;

[0017] Figure 3 This is a side view diagram of an embodiment of the present application.

[0018] Reference numerals: 1. Mounting housing; 2. Connecting platform; 3. Isolation membrane; 4. Liquid inlet; 5. Liquid outlet pipe; 6. Air guide pipe; 7. Solenoid valve A; 8. Booster pump; 9. Gas supply pipe; 10. Solenoid valve B; 11. Pressure gauge; 12. Liquid level sensor; 13. Flow stabilizer; 14. Connecting seat; 15. Exhaust pipe; 16. Pressure valve; 17. Connecting hose; 18. Connector; 19. Support leg A; 20. Support leg B; 21. Rubber sleeve; 22. Snap-fit ​​plate; 23. Control module. Detailed Implementation

[0019] The present application will be further described in detail below with reference to the accompanying drawings.

[0020] To better understand the technical solutions presented in the embodiments of this application, the working principle of the existing portable indoor fire hydrant pressure detection device will first be introduced.

[0021] Existing portable fire hydrant pressure testing devices typically connect a pressure gauge directly to the hydrant to obtain the pressure value. However, this method sometimes requires spraying water containing particles when the hydrant outlet is blocked. This water directly contacts the pressure gauge, posing a risk of clogging it and affecting normal use. Therefore, some water needs to be released before testing. However, the lack of water storage containers indoors makes the testing process cumbersome. Furthermore, storing the released water can negatively impact the indoor environment, making it particularly inconvenient. Therefore, improvements to existing testing equipment are needed to address these issues.

[0022] Please see Figures 1 to 3 This application discloses a portable indoor fire hydrant pressure detection device, comprising: a mounting housing 1, a connecting platform 2, an isolation membrane 3, a liquid inlet 4, a liquid outlet pipe 5, an air guide pipe 6, a solenoid valve A7, a booster pump 8, an air supply pipe 9, a solenoid valve B10, a pressure gauge 11, a liquid level sensor 12, a flow stabilizer 13, a connecting seat 14, an exhaust pipe 15, and a pressure valve 16. The mounting housing 1 is shaped like a horizontally placed isosceles trapezoid. The connecting platform 2 is located on the inner wall of the mounting housing 1 at one-third of its length from the shorter side. The isolation membrane 3 is fixedly connected to the connecting platform 2 around its perimeter. The liquid inlet 4 is located at the lower right end of the mounting housing 1. The liquid outlet pipe 5 is located on the lower surface of the right end of the mounting housing 1 and is equipped with a valve. The two ends of the air guide pipe 6 are respectively connected to the upper surfaces of the mounting housing 1 on both sides of the isolation membrane 3. The solenoid valve A7... A booster pump 8 is fixedly connected to the air guide pipe 6 near the left end. The booster pump 8 is mounted on the surface of one side of the mounting housing 1. The output end of the booster pump 8 is connected to the air filling pipe 9. One end of the air filling pipe 9 is connected to the air guide pipe 6 corresponding to the right side of the solenoid valve A7. A solenoid valve B10 is installed on the pipe body of the air filling pipe 9 near the booster pump 8. A pressure gauge 11 is connected to the mounting housing 1 corresponding to the left side of the isolation diaphragm 3. A liquid level sensor 12 is fixedly fixed vertically at equal intervals on the inner wall of the mounting housing 1. A flow stabilizer 13 is fixedly fixed horizontally at intervals on the inner wall of the mounting housing 1 corresponding to the liquid level sensors 12. A connecting seat 14 is fixedly connected to the middle position of the left end of the mounting housing 1. The middle part of the connecting seat 14 is connected to the mounting housing 1. One end of the exhaust pipe 15 is threadedly connected to the middle part of the connecting seat 14. A pressure valve 16 is installed on the exhaust pipe 15.

[0023] Specifically, during use, the inlet 4 is connected to the outlet of an existing fire hydrant, allowing water to enter the mounting housing 1 after opening. The connecting platform 2 divides the internal space into two parts via the isolation membrane 3. When water enters the mounting housing 1, the outlet pipe 5 is closed, and the pressure valve 16 is adjusted to low pressure or no pressure. During continuous venting, liquid enters the space on the right side of the isolation membrane 3 from the inlet 4. When the liquid level reaches a level sensor 12 at the bottom, the pressure valve 16 is closed or set to the maximum safe pressure, initiating the detection process. At this time, the solenoid valve A7 is open, and the solenoid valve B10 is closed. Air at the upper right side of the mounting housing 1 can enter the left side through the air guide pipe 6. The liquid level continues to rise due to the connection between the two sides. At this point, pressure gauge 11 will display the pressure value. If the pressure gauge 11 value stabilizes before the uppermost liquid level sensor 12 sends a signal, then the pressure at this time is the internal pressure of the fire hydrant pipe. If the pressure gauge 11 pointer continues to rise when the uppermost liquid level sensor 12 starts sending a signal, then booster pump 8 will be started, and solenoid valve B10 will be opened. This will then allow air to be added and pressurized to the air pipe 6 through the air supply pipe 9, thereby increasing the pressure on both sides of the isolation membrane 3. When the pressure is greater than the internal pressure of the fire hydrant, the liquid level on the right side will drop. This can be seen from the disappearance of the signal on the uppermost liquid level sensor 12. At this point, booster pump 8 and solenoid valve B10 will be closed. If the pressure gauge 11 value is stable, then the measurement result can be obtained.

[0024] Compared to the existing direct connection method, this detection method avoids inaccurate measurements caused by pipe blockage at pressure gauge 11. It can also detect the presence and pressure of water in the fire hydrant, avoiding splashing of water onto surrounding objects during existing tests. After testing, the pressure can be reduced to push the water back into the fire hydrant, or the vent pipe 15 on the connector 14 can be disconnected after closing the fire hydrant outlet to release the pressure inside the mounting housing 1. Then, the valve on the outlet pipe 5 can be opened to drain the internal liquid. Any impurities in the liquid can also be drained. In this measurement method, the isolation diaphragm 3 is made of elastic, high-pressure resistant rubber, which can deform when the pressure on both sides is different, thus transmitting pressure. Measurement can also be performed after connecting to the fire hydrant on the right side without opening the solenoid valve A7. The method is flexible, avoids water splashing, is practical, and has good application prospects.

[0025] Please see Figure 1 As another specific embodiment provided in the application, it also includes a connecting hose 17, one end of which is connected to the liquid inlet 4, and the other end of which is connected to the outlet end of the fire hydrant.

[0026] Specifically, the connection hose 17 can be adapted to locations where the angle of the fire hydrant outlet is special and it is inconvenient to connect, thus improving the convenience of connection.

[0027] Please see Figure 1 As another specific embodiment provided in the application, it also includes a connector 18, which is connected to the end of the connecting hose 17 and is matched with the outlet end of the fire hydrant.

[0028] Specifically, the connector 18 is designed to connect to most existing fire hydrant outlets while ensuring a good seal after connection.

[0029] Please see Figure 2 As another specific embodiment provided in the application, it also includes support leg A19 and support leg B20. Support leg A19 is symmetrically fixedly connected to the surface of the lower right end of the mounting housing 1, and support leg B20 is symmetrically movably connected to the lower left side of the mounting housing 1. The lengths of support leg A19 and support leg B20 can be extended and adjusted and positioned at the adjusted height.

[0030] Specifically, the support leg A19 can be positioned to a certain length after extension and retraction, and the length of the support leg B20 can also be adjusted, thereby stabilizing the mounting housing 1 at a certain height and providing flat support. At the same time, the support leg A19 can be retracted to a shorter size, which can also protect the liquid outlet pipe 5 at the bottom and reduce the impact at that point. The end of the support leg B20 is designed to be movable, so it can be folded up after retraction to reduce its volume.

[0031] Please see Figure 1 As another specific embodiment provided in the application, it also includes a rubber sleeve 21, which is fixedly connected to the outer surface of the air duct 6 at the middle position.

[0032] Specifically, the rubber sleeve 21 is located in the middle of the air duct 6, which makes it easy to carry by hand and provides an anti-slip function. This is because the air duct 6 is made of a relatively thick metal pipe.

[0033] Please see Figure 2 As another specific embodiment provided in the application, it also includes a snap-fit ​​plate 22, which is fixedly connected to the lower surface of the mounting housing 1 on the left side towards the center, and the support leg B20 is connected to the snap-fit ​​plate 22.

[0034] Specifically, the snap-fit ​​plate 22 can position the support leg B20 after it is folded, thereby reducing its size during carrying and improving its mobility.

[0035] Please see Figure 3As another specific embodiment provided in the application, it also includes a control module 23, which is fixedly connected to the surface of one side of the mounting housing 1. The control module 23 is powered by its own power supply, and the output end of the control module 23 is electrically connected to the input end of the booster pump 8.

[0036] Specifically, the control module 23 is used to compensate for pressure on one or both sides when there is a large pressure difference between the two sides under certain measurement conditions. By turning on the booster air pump 8 and simultaneously turning on or off the solenoid valve A7, it is used to restore the shape of the isolation diaphragm 3 or to force the pressure inside the mounting housing 1 out of the mounting housing 1. In accordance with the needs of the detection process, the solenoid valve B10 is used to control the on / off state of the air supply pipe 9 when the booster air pump 8 is not turned on, thereby enabling the normal operation of the detection.

[0037] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A portable pressure detection device for indoor fire hydrants, characterized in that, include: The mounting housing (1), connecting platform (2), isolation membrane (3), liquid inlet (4), liquid outlet pipe (5), air guide pipe (6), solenoid valve A (7), booster pump (8), air supply pipe (9), solenoid valve B (10), pressure gauge (11), liquid level sensor (12), flow stabilizer plate (13), connecting seat (14), exhaust pipe (15), and pressure valve (16) are installed. The mounting housing (1) has a horizontally placed isosceles trapezoidal shape. The connecting platform (2) is located near the short end of the mounting housing (1). On the inner wall at one-third of one side, the isolation membrane (3) is fixedly connected to the connecting platform (2) around its perimeter. The liquid inlet (4) is located at the lower right end of the mounting housing (1). The liquid outlet (5) is located on the lower surface of the right end of the mounting housing (1). A valve is provided on the liquid outlet (5). The two ends of the air guide pipe (6) are respectively connected to the upper surface of the mounting housing (1) on both sides of the isolation membrane (3). The solenoid valve A (7) is fixedly connected to the air guide pipe (6) near the left end. Positionally, the booster pump (8) is mounted on the surface of one side of the mounting housing (1). The output end of the booster pump (8) is connected to a gas filling pipe (9). One end of the gas filling pipe (9) is connected to the gas guide pipe (6) corresponding to the right side of the solenoid valve A (7). A solenoid valve B (10) is installed on the pipe body of the gas filling pipe (9) near the booster pump (8). The pressure gauge (11) is connected to the mounting housing (1) corresponding to the left side of the isolation diaphragm (3). The liquid level sensor (1) 2) The vertically equidistant fixed connection is fixed on the inner wall of the mounting housing (1). The flow stabilizer (13) is horizontally fixed on the inner wall of the mounting housing (1) corresponding to the liquid level sensor (12). The connecting seat (14) is fixedly connected to the middle position of the left end of the mounting housing (1). The middle part of the connecting seat (14) is connected to the mounting housing (1). One end of the exhaust pipe (15) is threaded to the middle part of the connecting seat (14). The pressure valve (16) is set on the exhaust pipe (15).

2. The portable indoor fire hydrant pressure detection device according to claim 1, characterized in that: It also includes a connecting hose (17), one end of which is connected to the liquid inlet (4), and the other end of which is connected to the outlet of the fire hydrant.

3. The portable indoor fire hydrant pressure detection device according to claim 2, characterized in that: It also includes a connector (18), which is connected to the end of the connecting hose (17) and is matched with the outlet end of the fire hydrant.

4. The portable indoor fire hydrant pressure detection device according to claim 1, characterized in that: It also includes support leg A (19) and support leg B (20). Support leg A (19) is symmetrically fixedly connected to the surface of the lower right side of the mounting housing (1). Support leg B (20) is symmetrically movably connected to the lower left side of the mounting housing (1). The lengths of support leg A (19) and support leg B (20) can be extended and adjusted and positioned at the adjusted height.

5. The portable indoor fire hydrant pressure detection device according to claim 1, characterized in that: It also includes a rubber sleeve (21), which is fixedly connected to the outer surface of the air duct (6) at the middle position.

6. The portable indoor fire hydrant pressure detection device according to claim 4, characterized in that: It also includes a snap-fit ​​plate (22), which is fixedly connected to the lower surface of the mounting housing (1) on the left side towards the center, and the support leg B (20) is connected to the snap-fit ​​plate (22).

7. The portable indoor fire hydrant pressure detection device according to claim 1, characterized in that: It also includes a control module (23), which is fixedly connected to the surface of the mounting housing (1) on one side. The control module (23) is powered by its own power supply, and the output end of the control module (23) is electrically connected to the input end of the booster pump (8).

Images