Fire-fighting water pressure automatic regulator

Abstract

The utility model discloses a fire-fighting water pressure automatic regulator, and belongs to the technical field of regulators. The automatic fire-fighting water pressure regulator comprises a fire pump and a pilot valve, a protective cover is arranged at the top of the pilot valve, an insertion hole is formed in the top of the pilot valve, a plug pin is inserted into the inner wall of the insertion hole, the top of the plug pin is fixedly connected with the protective cover, a groove is formed in the bottom of the plug pin, and the plug pin is inserted into the groove. The inner wall of the groove is rotationally connected with a rotating rod through a rotating shaft, the bottom of the guide valve is fixedly connected with a U-shaped seat, and the inner wall of the U-shaped seat is fixedly connected with a spring clamping piece. The pilot valve can be covered by the protective cover, so that water molecules in the air can be conveniently shielded, the situation that the pilot valve is rusted and locked by the water molecules exposed in the air for a long time, and consequently the pilot valve is inconvenient to twist subsequently is avoided, and by means of cooperation of the parts, the service life of the pilot valve is prolonged, and the service life of the pilot valve is prolonged. Therefore, the utilization rate of the regulator can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of regulators, in particular to an automatic fire-fighting water pressure regulator. Background Art

[0002] At present, the fire protection system includes outdoor fire hydrant system, indoor fire hydrant system, fire extinguisher system, and some may also have automatic sprinkler system, water cannon system, gas fire extinguishing system, fire detection system, water mist system, etc. The fire hydrant set is generally composed of a fire box + fire hose + water gun + buckle + plug + clip, etc. The fire hydrant is mainly used for fire trucks to take water from the municipal water supply network or the outdoor fire water supply network to implement fire extinguishing. It can also be directly connected to the water hose and water gun to discharge water for fire extinguishing. Therefore, the indoor and outdoor fire hydrant system is also one of the important fire fighting facilities for fire fighting;

[0003] As in the prior art, the Chinese patent authorization number is CN202320297233.7, the application date is 2023-02-23, and the utility model patent named as a fire water pressure monitoring device discloses a fire water pressure monitoring device, including a connecting pipe, the outer wall of the connecting pipe is connected and installed with a detection tube, and a reflux mechanism is arranged inside the detection tube; the reflux mechanism includes: an extrusion plate arranged inside the detection tube; piston grooves are opened at the four corners of the extrusion plate; piston rods movably connected to four groups of the piston grooves respectively; sealing plates fixedly connected to the bottom ends of the four groups of piston rods; a pressure gauge connected and installed with the detection tube, and the outer diameter of the sealing plate is adapted to the inner wall of the detection tube; Each group of piston rods is sleeved with a pressure spring on the outside, and both ends of each group of pressure springs are respectively connected to the outer wall of the extrusion plate and the sealing plate, which solves the problem that there is no mechanism to adjust the water pressure inside the fire-fighting pipe at present, resulting in that when the operator knows that the water pressure inside the fire-fighting pipe is too high, he needs to personally release the water pressure inside the fire-fighting pipe, which not only wastes the operator's operation time, but also delays the problem of extinguishing the fire in the first time;

[0004] However, the above patent still has the disadvantage that the existing regulator is exposed to the air for a long time, which will cause the water molecules in the air to rust the pilot valve, making it inconvenient to twist the pilot valve normally afterwards.

[0005] Therefore, in response to this problem, the utility model has come out with a fire-fighting water pressure automatic regulator. Utility Model Content

[0006] The utility model aims to solve the problems in the prior art and proposes an automatic fire water pressure regulator.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A fire water pressure automatic regulator comprises a fire pump and a pilot valve, wherein a protective cover is arranged on the top of the pilot valve, a socket is provided on the top of the pilot valve, a latch is inserted into the inner wall of the socket, the top of the latch is fixedly connected to the protective cover, a groove is provided on the bottom of the latch, the inner wall of the groove is rotatably connected to a rotating rod via a rotating shaft, a U-shaped seat is fixedly connected to the bottom of the pilot valve, a spring card is fixedly connected to the inner wall of the U-shaped seat, and the inner wall of the spring card is clamped with the rotating rod.

[0009] Preferably, a pull ring is fixedly connected to the end of the rotating rod, and the shape of the pull ring can be set to be rectangular or arc-shaped.

[0010] Preferably, a fixing rod is fixedly connected to the inner top edge of the protective cover, a piston is fixedly connected to the lower end of the fixing rod, a liquid storage cylinder is correspondingly provided on the inner surface of the protective cover, the inner wall of the liquid storage cylinder is slidably connected to the piston, an arc-shaped nozzle is connected to the surface of the liquid storage cylinder through a pipeline, and a liquid inlet is fixedly connected to the surface of the liquid storage cylinder.

[0011] Preferably, a return spring is fixedly connected to the top of the piston, and an upper end of the return spring is fixedly connected to the protective cover.

[0012] Preferably, an annular groove is provided on the surface of the pilot valve, and a rubber ring is fixedly connected to the inner wall of the annular groove.

[0013] Preferably, a T-shaped slide groove is provided on the inner surface of the protective cover, and a mounting ring is slidably connected to the inner wall of the T-shaped slide groove.

[0014] Preferably, a storage groove is provided on the top of the protective cover, and a handle is rotatably connected to the inner wall of the storage groove via a rotating shaft.

[0015] Preferably, a pressure gauge is fixedly connected to the top of the fire pump, and the pressure gauge is symmetrically arranged.

[0016] Compared with the prior art, the utility model provides a fire water pressure automatic regulator, which has the following beneficial effects:

[0017] 1. The fire water pressure automatic regulator can cover the pilot valve by setting a protective cover to block the water molecules in the air, so as to prevent the pilot valve from being rusted and locked by the water molecules in the air due to long-term exposure, so that it is inconvenient to twist the pilot valve later. Through the cooperation between the above components, the utilization rate of the regulator can be effectively improved.

[0018] 2. The fire water pressure automatic regulator can push the piston to spray the rust remover in the liquid storage cylinder into the pilot valve by setting a fixed rod, so as to prevent the pilot valve from rusting and locking due to long-term non-use. Through the cooperation between the above parts, it can better facilitate the subsequent normal twisting of the pilot valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the front section structure of a fire water pressure automatic regulator protection cover proposed by the utility model;

[0020] Figure 2 A fire water pressure automatic regulator proposed by the utility model Figure 1 The enlarged structural diagram at A in the middle;

[0021] Figure 3 A fire water pressure automatic regulator proposed by the utility model Figure 1 The enlarged structural diagram at B in the middle;

[0022] Figure 4 This is a schematic diagram of the top-sectional structure of a fire water pressure automatic regulator protection cover proposed by the utility model;

[0023] Figure 5 The utility model is a schematic diagram of the side structure of an automatic fire water pressure regulator.

[0024] In the figure: 1. fire pump; 2. pilot valve; 3. protective cover; 4. socket; 5. latch; 6. groove; 7. rotating rod; 8. U-shaped seat; 9. spring card; 10. pull ring; 11. fixing rod; 12. piston; 13. liquid storage cylinder; 14. arc nozzle; 15. reset spring; 16. annular groove; 17. rubber ring; 18. T-shaped slide groove; 19. mounting ring; 20. liquid inlet; 21. storage tank; 22. pull handle; 23. pressure gauge. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely 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 of the embodiments.

[0026] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., 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 a limitation on the present invention.

[0027] Reference Figure 1-Figure 5 A fire water pressure automatic regulator comprises a fire pump 1 and a pilot valve 2, a protective cover 3 is arranged on the top of the pilot valve 2, a plug hole 4 is opened on the top of the pilot valve 2, a plug pin 5 is inserted into the inner wall of the plug hole 4, the top of the plug pin 5 is fixedly connected to the protective cover 3, a groove 6 is opened at the bottom of the plug pin 5, the inner wall of the groove 6 is rotatably connected to a rotating rod 7 through a rotating shaft, a U-shaped seat 8 is fixedly connected to the bottom of the pilot valve 2, a spring card 9 is fixedly connected to the inner wall of the U-shaped seat 8, and the inner wall of the spring card 9 is clamped with the rotating rod 7.

[0028] When the water pressure needs to be adjusted, the rotating rod 7 needs to be pulled first to rotate in the groove 6 through the rotating shaft, and the rotating rod 7 will be gradually separated from the spring card 9 during the rotation. When the rotating rod 7 is rotated in the groove 6 through the rotating shaft to be in a straight line with the latch 5, the protective cover 3 can be pulled to drive the latch 5 to be separated from the insertion hole 4 in the pilot valve 2, and the latch 5 can simultaneously drive the rotating rod 7 to be separated from the insertion hole 4 in the pilot valve 2, and then the water pressure can be controlled by twisting the pilot valve 2. When it is not needed, the protective cover 3 can be pulled to drive the latch 5 and the rotating rod 7 to be inserted into the insertion hole 4 in the pilot valve 2, and then the rotating rod 7 can be manually pulled to rotate at the groove 6 in the latch 5 through the rotating shaft, so that the rotating rod 7 is stuck in the spring card 9 to complete the locking, so as to avoid the protective cover 3 and the pilot valve 2 being separated and affecting normal use due to external factors, thereby effectively extending the service life of the regulator.

[0029] Reference Figure 2 A pull ring 10 is fixedly connected to the end of the rotating rod 7, and the shape of the pull ring 10 can be set to be rectangular or arc-shaped.

[0030] In the utility model, by providing the pull ring 10, the contact area for the hand of the staff can be increased, so as to better drive the rotating rod 7 to rotate.

[0031] Reference Figure 1 A fixing rod 11 is fixedly connected to the inner top edge of the protective cover 3, a piston 12 is fixedly connected to the lower end of the fixing rod 11, a liquid storage cylinder 13 is correspondingly provided on the inner surface of the protective cover 3, the inner wall of the liquid storage cylinder 13 is slidably connected to the piston 12, an arc-shaped nozzle 14 is connected to the surface of the liquid storage cylinder 13 through a pipeline, and a liquid inlet 20 is fixedly connected to the surface of the liquid storage cylinder 13.

[0032] In the utility model, when the protective cover 3 is covered on the pilot valve 2, the pilot valve 2 will push the liquid storage cylinder 13 to move upward, and at the same time, the fixing rod 11 and the piston 12 will move toward the pilot valve 2, so that the fixing rod 11 and the piston 12 can push the rust remover in the liquid storage cylinder 13 to flow into the pipeline and the liquid inlet 20, and then the rust remover will be discharged into the arc nozzle 14 with the downward squeezing force of the fixing rod 11 and the piston 12, and then sprayed on the pilot valve 2 from the arc nozzle 14. When the protective cover 3 is disassembled each time, the staff can regularly pour the rust remover into the liquid storage cylinder 13 from the liquid inlet 20, so as to remove rust from the pilot valve 2 and avoid the pilot valve 2 from rusting and making it inconvenient to twist the pilot valve 2 to adjust the water pressure later.

[0033] Reference Figure 1-Figure 3 A return spring 15 is fixedly connected to the top of the piston 12 , and the upper end of the return spring 15 is fixedly connected to the protective cover 3 .

[0034] In the present invention, the reset spring 15 can be provided to quickly reset the liquid storage cylinder 13, thereby preventing the liquid storage cylinder 13 from being unable to reset due to excessive friction between the piston 12 and the liquid storage cylinder 13 and affecting subsequent use.

[0035] Reference Figure 3 An annular groove 16 is provided on the surface of the pilot valve 2 , and a rubber ring 17 is fixedly connected to the inner wall of the annular groove 16 .

[0036] In the utility model, the sealing between the liquid storage cylinder 13 can be strengthened by the annular groove 16 and the rubber ring 17, so that the rust remover in the liquid storage cylinder 13 can be better pushed into the pipeline and the arc-shaped nozzle 14, so as to facilitate the subsequent spraying of the rust remover into the pilot valve 2 to avoid rust and inconvenience in subsequent twisting.

[0037] Reference Figure 3 A T-shaped slide groove 18 is provided on the inner surface of the protective cover 3 , and a mounting ring 19 is slidably connected to the inner wall of the T-shaped slide groove 18 .

[0038] In the utility model, the liquid storage cylinder 13 can be installed by setting the T-shaped slide groove 18 and the mounting ring 19, so as to lay a foundation for the subsequent up and down movement of the liquid storage cylinder 13 in the protective cover 3.

[0039] Reference Figure 5 A storage groove 21 is provided on the top of the protective cover 3, and a handle 22 is rotatably connected to the inner wall of the storage groove 21 through a rotating shaft.

[0040] In the utility model, by providing the storage groove 21 and the handle 22, it is convenient for subsequent staff to pull the protective cover 3 to separate from the pilot valve 2, avoiding the protective cover 3 from slipping due to direct hand contact, making it inconvenient for subsequent staff to lift the protective cover 3.

[0041] Reference Figure 5 A pressure gauge 23 is fixedly connected to the top of the fire pump 1, and the pressure gauge 23 is symmetrically arranged.

[0042] In the present invention, the pressure gauge 23 is provided to facilitate the staff to visually observe the water pressure, so that the staff can adjust the water pressure of the regulator according to the actual situation.

[0043] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fire water pressure automatic regulator, comprising a fire pump (1) and a pilot valve (2), characterized in that: A protective cover (3) is arranged on the top of the pilot valve (2), a plug hole (4) is provided on the top of the pilot valve (2), a plug pin (5) is inserted into the inner wall of the plug hole (4), the top of the plug pin (5) is fixedly connected to the protective cover (3), a groove (6) is provided on the bottom of the plug pin (5), the inner wall of the groove (6) is rotatably connected to a rotating rod (7) via a rotating shaft, a U-shaped seat (8) is fixedly connected to the bottom of the pilot valve (2), a spring card (9) is fixedly connected to the inner wall of the U-shaped seat (8), and the inner wall of the spring card (9) is clamped with the rotating rod (7).

2. The fire water pressure automatic regulator according to claim 1, characterized in that: A pull ring (10) is fixedly connected to the end of the rotating rod (7), and the shape of the pull ring (10) can be set to be rectangular or arc-shaped.

3. The fire water pressure automatic regulator according to claim 1, characterized in that: A fixing rod (11) is fixedly connected to the inner top edge of the protective cover (3), a piston (12) is fixedly connected to the lower end of the fixing rod (11), a liquid storage cylinder (13) is correspondingly provided on the inner surface of the protective cover (3), an inner wall of the liquid storage cylinder (13) is slidably connected to the piston (12), a curved spray head (14) is connected to the surface of the liquid storage cylinder (13) via a pipeline, and a liquid inlet (20) is fixedly connected to the surface of the liquid storage cylinder (13).

4. The fire water pressure automatic regulator according to claim 3, characterized in that: A return spring (15) is fixedly connected to the top of the piston (12), and an upper end of the return spring (15) is fixedly connected to the protective cover (3).

5. The fire water pressure automatic regulator according to claim 1, characterized in that: An annular groove (16) is provided on the surface of the pilot valve (2), and a rubber ring (17) is fixedly connected to the inner wall of the annular groove (16).

6. The fire water pressure automatic regulator according to claim 1, characterized in that: The inner surface of the protective cover (3) is provided with a T-shaped sliding groove (18), and the inner wall of the T-shaped sliding groove (18) is slidably connected to a mounting ring (19).

7. The fire water pressure automatic regulator according to claim 1, characterized in that: A storage groove (21) is provided on the top of the protective cover (3), and a handle (22) is rotatably connected to the inner wall of the storage groove (21) via a rotating shaft.

8. The fire water pressure automatic regulator according to claim 1, characterized in that: A pressure gauge (23) is fixedly connected to the top of the fire pump (1), and the pressure gauge (23) is symmetrically arranged.

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