Fire hydrant with water pressure collection overpressure or water shortage alarm function

Abstract

This utility model discloses a fire hydrant with overpressure or water shortage alarm functions, relating to the field of fire hydrant technology. It includes a hydrant body and fire caps and bases located at the upper and lower ends of the hydrant body. The fire caps have internal fire cap covers, and a PCB is fixedly mounted on the top of the fire cap covers. The upper end of the hydrant body has two symmetrically arranged end cap slots, with small end caps fitted over the end cap slots. A large end cap is located on the outer wall of the hydrant body, between the two small end caps. This utility model integrates a water monitoring component inside the fire hydrant, providing timely warnings when overpressure or water shortage occurs inside the hydrant body, thus improving the effectiveness of the fire hydrant.

Description

Technical Field

[0001] This utility model relates to the field of fire hydrant technology, specifically to a fire hydrant with overpressure or water shortage alarm functions for water pressure acquisition. Background Technology

[0002] As a fixed fire-fighting facility, the core function of a fire hydrant is to control combustibles, isolate oxidizers, and eliminate ignition sources. In practical applications, it needs to be connected to external fire trucks and other fire-fighting equipment to achieve water spray extinguishing. However, existing fire hydrants suffer from the problem of limited functionality:

[0003] On the one hand, the pressure of the water flowing inside the hydrant cannot be monitored in real time; on the other hand, it is difficult to accurately determine whether there is a lack of water inside the hydrant during use. These defects affect the effectiveness of fire hydrants to some extent.

[0004] Therefore, we propose a fire hydrant with overpressure or water shortage alarm functions to solve the above problems. Summary of the Invention

[0005] In view of the problems existing in the fire hydrants with water pressure acquisition overpressure or water shortage alarm functions, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a fire hydrant with overpressure or water shortage alarm function, which solves the problem that existing fire hydrants do not have overpressure and water shortage alarm functions.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A fire hydrant with overpressure or water shortage alarm function for water pressure acquisition includes a hydrant body and a fire cap and base located at the upper and lower ends of the hydrant body. The fire cap has a fire cap cover plate inside, and a PCB is fixedly installed on the top of the fire cap cover plate. The upper end of the hydrant body has two symmetrically arranged end cap slots. Small end caps are fitted outside the end cap slots. A large end cap is provided on the outer wall of the hydrant body between the two small end caps.

[0009] The upper interior of the fire helmet is equipped with a toothed plate assembly. The pressure plate assembly includes a fire hydrant screw and a float switch. The fire hydrant screw is located inside the fire helmet, and a fire hydrant guide sleeve is threaded onto its lower end. A connecting rod is fixedly inserted through the lower end of the fire hydrant guide sleeve. A pressure probe assembly is located at the lower end of the connecting rod. The pressure probe assembly is located inside the base and includes a valve stem connecting pipe and a probe housing. The valve stem connecting pipe is sleeved on the outside of the connecting rod, and the probe housing is fixedly sleeved on the lower end of the outer wall of the valve stem connecting pipe.

[0010] Preferably, the toothed plate assembly includes a toothed plate, which is fixedly disposed on the inner wall of the fire helmet and located at the lower end of the fire helmet cover. A cable fixing connector is fixedly disposed at one end of the inside of the toothed plate. First nuts are threaded on both sides of the cable fixing connector. The upper end of the float switch is disposed at the other end of the inside of the toothed plate, and two symmetrically arranged second nuts are threaded on the upper end. Both the first nuts and the second nuts are disposed on the upper and lower sides of the toothed plate.

[0011] Preferably, both the first nut and the second nut have a sealing ring on the side that contacts the gear plate.

[0012] Preferably, the pressure probe assembly includes a quick-connect connector and a connector fixing plate. The connector fixing plate is fixedly disposed on the lower end of the inner wall of the valve stem connecting pipe. The quick-connect connector is threaded inside the connector fixing plate. A third nut is threadedly fitted onto the lower end of the quick-connect connector. A first rubber pad pressure plate and a sealing rubber pad are sequentially fixedly fitted onto the lower end of the probe housing from top to bottom. A fourth nut is threadedly fitted onto the lower end of the probe housing. A second rubber pad pressure plate is provided in contact between the fourth nut and the sealing rubber pad.

[0013] Furthermore, the bottom of the sealing gasket is provided with a pressure groove that cooperates with the second gasket pressure plate.

[0014] Preferably, the PCB is screwed and fixed inside the fire helmet.

[0015] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0016] 1. This utility model, through the provided hydrant body, fire cap, PCB, toothed plate assembly, float switch, pressure probe assembly and probe housing, can integrate a water monitoring component inside the fire hydrant, and can promptly provide early warning when the water pressure inside the hydrant body exceeds the limit or is short of water, thereby improving the effectiveness of the fire hydrant. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a sectional perspective view of the present invention;

[0020] Figure 3 For the present utility model Figure 3 Front view;

[0021] Figure 4 This is a schematic diagram of the structure of the toothed disc assembly of this utility model;

[0022] Figure 5 This is a schematic diagram of the pressure probe assembly of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Fire hydrant cap; 2. PCB; 3. Fire hydrant cap plate; 4. Small end cap; 5. End cap bayonet; 6. Large end cap; 7. Hydrant body; 8. Base; 9. Fire hydrant guide screw sleeve; 10. Connecting rod; 11. Sealing ring; 12. Gear; 13. First nut; 14. Cable fixing connector; 15. Float switch; 16. Second nut; 17. Fire hydrant screw; 18. Valve stem connecting pipe; 19. Quick connector; 20. Connector fixing plate; 21. Third nut; 22. Probe housing; 23. Fourth nut; 24. First rubber gasket pressure plate; 25. Sealing rubber gasket; 26. Second rubber gasket pressure plate. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] This utility model discloses a fire hydrant with overpressure or water shortage alarm function based on water pressure acquisition.

[0027] This utility model provides, for example Figure 1-5 The fire hydrant shown has a water pressure acquisition overpressure or water shortage alarm function, including a hydrant body 7 and a fire cap 1 and a base 8 located at the upper and lower ends of the hydrant body 7. The fire cap 1 has a fire cap cover plate 3 inside, and a PCB2 is fixedly installed on the top of the fire cap cover plate 3. The PCB2 is screwed and fixed inside the fire cap 1. The upper end of the hydrant body 7 has two symmetrically arranged end cap slots 5. Small end caps 4 are fitted on the outside of the end cap slots 5. A large end cap 6 is provided on the outer wall of the hydrant body 7 and between the two small end caps 4.

[0028] The upper part of the fire helmet 1 is provided with a toothed plate assembly. The pressure plate assembly includes a fire hydrant screw 17 and a float switch 15. The fire hydrant screw 17 is located inside the fire helmet 1, and a fire hydrant guide screw sleeve 9 is threaded on its lower end. A connecting rod 10 is fixedly passed through the lower end of the fire hydrant guide screw sleeve 9. A pressure probe assembly is provided at the lower end of the connecting rod 10. The pressure probe assembly is located inside the base 8 and includes a valve stem connecting pipe 18 and a probe housing 22. The valve stem connecting pipe 18 is sleeved on the outside of the connecting rod 10, and the probe housing 22 is fixedly sleeved on the lower end of the outer wall of the valve stem connecting pipe 18.

[0029] The pressure probe assembly includes a quick-connect connector 19 and a connector fixing plate 20. The connector fixing plate 20 is fixedly disposed on the lower end of the inner wall of the valve stem connecting pipe 18. The quick-connect connector 19 is threaded inside the connector fixing plate 20. The lower end of the quick-connect connector 19 is threaded with a third nut 21. The lower end of the probe housing 22 is sequentially fixed with a first rubber gasket pressure plate 24 and a sealing rubber gasket 25 from top to bottom. The lower end of the probe housing 22 is threaded with a fourth nut 23. A second rubber gasket pressure plate 26 is provided in contact between the fourth nut 23 and the sealing rubber gasket 25. The bottom of the sealing rubber gasket 25 has a pressure groove that matches the second rubber gasket pressure plate 26.

[0030] In order to detect the amount of water inside the thrombus 7 and avoid water shortage inside the thrombus 7 as much as possible, Figure 1-4 As shown, the gear assembly includes a gear 12, which is fixedly mounted on the inner wall of the fire helmet 1 and located at the lower end of the fire helmet cover plate 3. A cable fixing connector 14 is fixedly mounted on one end of the inside of the gear 12. First nuts 13 are threaded on both sides of the cable fixing connector 14. The upper end of the float switch 15 is located at the other end of the inside of the gear 12, and two symmetrically arranged second nuts 16 are threaded on the upper end. The two first nuts 13 and the second nuts 16 are located on the upper and lower sides of the gear 12. A sealing ring 11 is contacted on the side of the first nuts 13 and the second nuts 16 that contact the gear 12.

[0031] Working principle: Components such as the quick-connect connector 19 in the pressure probe assembly sense the water pressure inside the base 8 in real time. When the water pressure inside the hydrant body 7 exceeds the limit, the pressure signal is transmitted to the PCB2 inside the fire cap 1 via the circuit. After processing and analyzing the signal, the PCB2 will trigger the corresponding alarm mechanism if it determines that the pressure is excessive, and issue an overpressure warning in a timely manner. The float switch 15 in the crank assembly will float up and down with the change in the water level inside the hydrant body 7. When the water level inside the hydrant body 7 is insufficient and drops to a certain level, the float switch 15 will activate, transmitting a water shortage signal to the PC via the circuit. After B2 and PCB2 are processed, the alarm device will be activated to issue a water shortage reminder. The fire hydrant screw 17, fire hydrant guide screw sleeve 9, connecting rod 10 and other components are structurally coordinated to provide a stable installation and working environment for the pressure probe assembly and float switch 15 and other monitoring components. Sealing components such as sealing ring 11 and sealing gasket 25 ensure the airtightness of the entire fire hydrant, preventing water leakage from affecting the accuracy of monitoring and the normal use of the fire hydrant. The first nut 13, second nut 16, third nut 21, fourth nut 23 and other components ensure the stability of each component during operation by fixing the relevant components.

[0032] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A fire hydrant with overpressure or water shortage alarm function based on water pressure acquisition, comprising a hydrant body (7) and fire caps (1) and bases (8) disposed at the upper and lower ends of the hydrant body (7), characterized in that, The fire helmet (1) is provided with a fire helmet cover plate (3) inside. A PCB (2) is fixedly provided on the top of the fire helmet cover plate (3). The upper end of the bolt body (7) is provided with two symmetrically arranged end cap slots (5). A small end cap (4) is fitted on the outside of the end cap slot (5). A large end cap (6) is provided on the outer wall of the bolt body (7) and between the two small end caps (4). The fire helmet (1) is provided with a toothed plate assembly at the upper internal end. The toothed plate assembly includes a fire hydrant screw (17) and a float switch (15). The fire hydrant screw (17) is located inside the fire helmet (1), and a fire hydrant guide sleeve (9) is threaded on its lower end. A connecting rod (10) is fixedly passed through the lower end of the fire hydrant guide sleeve (9). A pressure probe assembly is provided at the lower end of the connecting rod (10). The pressure probe assembly is located inside the base (8) and includes a valve stem connecting pipe (18) and a probe housing (22). The valve stem connecting pipe (18) is sleeved on the outside of the connecting rod (10), and the probe housing (22) is fixedly sleeved on the lower end of the outer wall of the valve stem connecting pipe (18).

2. The fire hydrant with overpressure or water shortage alarm function according to claim 1, characterized in that, The toothed plate assembly includes a toothed plate (12), which is fixedly disposed on the inner wall of the fire helmet (1) and located at the lower end of the fire helmet cover plate (3). A cable fixing connector (14) is fixedly disposed at one end of the toothed plate (12). The cable fixing connector (14) is threaded with first nuts (13) on both sides. The upper end of the float switch (15) is disposed at the other end of the toothed plate (12), and the upper end is threaded with two symmetrically arranged second nuts (16). The two first nuts (13) and the two second nuts (16) are disposed on the upper and lower sides of the toothed plate (12).

3. The fire hydrant with overpressure or water shortage alarm function according to claim 2, characterized in that, Both the first nut (13) and the second nut (16) have a sealing ring (11) on the side that contacts the toothed disc (12).

4. The fire hydrant with overpressure or water shortage alarm function according to claim 1, characterized in that, The pressure probe assembly includes a quick-connect connector (19) and a connector fixing plate (20). The connector fixing plate (20) is fixedly disposed on the lower end of the inner wall of the valve stem connecting pipe (18). The quick-connect connector (19) is threaded inside the connector fixing plate (20). The lower end of the quick-connect connector (19) is threaded with a third nut (21). The lower end of the probe housing (22) is sequentially fixed with a first rubber pad pressure plate (24) and a sealing rubber pad (25) from top to bottom. The lower end of the probe housing (22) is threaded with a fourth nut (23). A second rubber pad pressure plate (26) is provided in contact between the fourth nut (23) and the sealing rubber pad (25).

5. The fire hydrant with overpressure or water shortage alarm function according to claim 4, characterized in that, The bottom of the sealing gasket (25) is provided with a pressure groove that matches the second gasket pressure plate (26).

6. The fire hydrant with overpressure or water shortage alarm function according to claim 1, characterized in that, The PCB (2) is screwed and fixed inside the fire cap (1).

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