Reverse water supply device for indoor fire hydrant

Abstract

The utility model relates to the technical field of fire fighting, discloses a reverse water supply device for an indoor fire hydrant, and solves the problem that although the fire hydrant eliminates the problem that fire extinguishing is inconvenient due to insufficient water pressure of a high-rise fire hydrant, the fire hydrant cannot be directly used on a layer. A one-way valve is arranged on the inner side of the water outlet pipe, a switch valve is arranged on the inner side of the fire fighting pipeline, a plug cover is arranged at one end of the water outlet pipe in a matched mode, the one-way valve comprises a lead screw in threaded connection with the water outlet pipe, a first rotating handle is fixedly arranged at one end of the lead screw, and a first partition plate is fixedly arranged at the other end of the lead screw. The lead screw is driven to rotate by rotating the first rotating handle, the lead screw is in threaded connection with the water outlet pipe, the lead screw drives the partition plate to move into a large cavity in the water outlet pipe, at the moment, water flows out of a water outlet pipe opening when the switch valve is opened, fire extinguishing is facilitated, and the practicability of the device is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fire protection, in particular to a reverse water supply device for an indoor fire hydrant. Background Art

[0002] Indoor fire hydrants are used to supply water to the fire scene through indoor pipe networks. They have valve interfaces and are fixed indoor fire-fighting facilities in factories, warehouses, high-rise buildings, public buildings and ships. They are usually installed in fire hydrant boxes and are used in conjunction with equipment such as fire hoses and water guns.

[0003] The existing Chinese patent with publication number CN208176784U discloses a water supply device and water supply equipment, which belongs to the field of fire fighting technology. The water supply device includes a main pipeline, a first one-way valve, a branch pipeline and a second one-way valve. The main pipeline is provided with a first input part and a first output part connected to each other. The first one-way valve is connected to the main pipeline and allows the fluid in the main pipeline to flow from the first input part to the first output part in one direction. The branch pipeline is provided with a second input part and a second output part connected to each other. The second output part is connected to the main pipeline and the second output part is located between the first output part and the first one-way valve. The second input part is provided with a fire fighting interface. The second one-way valve is connected to the branch pipeline and allows the fluid in the branch pipeline to flow from the second input part to the second output part in one direction. The water supply device can directly supply water to the main pipeline through a fire truck, so that the indoor fire hydrant has high-pressure water. This method can help firefighters quickly connect to the water source and improve the success rate of fire fighting. Although this fire hydrant solves the problem of high-rise fire hydrants being inconvenient to extinguish fires due to insufficient water pressure, the device is not equipped with the valve port required for the corresponding floor, resulting in the inability to directly use this fire hydrant on this floor. In the event of a fire, it is still necessary to seek help from the fire department, which greatly increases the demand for manpower, financial resources and material resources, thereby reducing the practicality of the device. Utility Model Content

[0004] The utility model aims to provide a reverse water supply device for indoor fire hydrants. By adopting the device to work, the problem that the fire hydrant is inconvenient to extinguish fires due to insufficient water pressure in high-rise fire hydrants is solved, but at the same time the problem that the fire hydrant cannot be directly used on that floor is solved.

[0005] To achieve the above object, the utility model provides the following technical solution: An indoor fire hydrant reverse water supply device, including a fire pipeline, a water outlet pipe is arranged on one side of the fire pipeline, a check valve is arranged inside the water outlet pipe, a water inlet assembly is arranged at one end of the fire pipeline, a switch valve is arranged inside the fire pipeline, a plug cover is fittingly arranged at one end of the water outlet pipe. The check valve includes a lead screw threadedly connected to the water outlet pipe, a first turning handle is fixedly arranged at one end of the lead screw, a first partition plate is fixedly arranged at the other end of the lead screw, a first sealing ring is fixedly arranged on the outer side of the first partition plate. By rotating the first turning handle to drive the lead screw to rotate, since the lead screw is threadedly connected to the water outlet pipe, the lead screw drives the partition plate to move into the larger cavity inside the water outlet pipe. At this time, when the switch valve is opened, the water flows out from the water outlet of the water outlet pipe, which is convenient for fire extinguishing and greatly improves the practicability of the device.

[0006] Preferably, the water outlet pipe includes a shaft pipe fixedly connected to the fire pipeline, a first round pipe is fixedly arranged at one end of the shaft pipe, a disc is fixedly arranged at one end of the first round pipe, a threaded groove is opened in the middle of the disc, and the threaded groove is threadedly connected to the lead screw. A first threaded pipe is fixedly arranged on one side of the first round pipe, and the first threaded pipe is fittingly and movably connected to the plug cover. The setting of the first threaded pipe facilitates fire extinguishing and enables the fire hose to be quickly connected to it, optimizing the operation process.

[0007] Preferably, a water inlet is opened at the upper end of the fire pipeline, a through hole is opened on the outer surface of the fire pipeline, and the through hole is cooperatively installed with the water inlet assembly. A second round pipe is fixedly arranged in the middle of the fire pipeline, and a rotating groove is opened on the outer surface of the second round pipe, and the rotating groove is cooperatively installed with the switch valve. By fixing the positions of the various components through the fire pipeline, the overall structural layout is made more reasonable, and the use process is convenient and clear.

[0008] Preferably, the water inlet assembly includes a water inlet pipe fixedly connected to the through hole, an elastic member fixedly connected to the fire pipeline is movably arranged inside the water inlet pipe. The water inlet pipe includes a second threaded pipe fixedly connected to the through hole, and a screw cap is threadedly arranged at one end of the second threaded pipe. Through the threaded connection between the second threaded pipe and the screw cap, the screw cap is tightened during leisure time to prevent foreign objects from entering the fire pipeline and causing an impact.

[0009] Preferably, the elastic member includes a telescopic rod fixedly connected to the inner wall of the fire pipeline, a second partition plate is fixedly arranged at one end of the telescopic rod, a second sealing ring is fixedly arranged on the outer surface of the second partition plate. Both the second partition plate and the second sealing ring are slidably connected to the inner wall surface of the second threaded pipe. A spring fixedly connected to the inner wall of the fire pipeline is fixedly arranged at one end of the second partition plate. High-pressure water flows into the second threaded pipe, and the high pressure pushes the second partition plate and then compresses the spring to contract, so as to enter the fire pipeline for pressurization and be transported to the fire hydrants on the high floors. When it is inconvenient to effectively extinguish the fire due to insufficient water pressure on the high floors of the building, fire trucks and the like can directly supply water temporarily in the reverse direction through the water inlet assembly to achieve effective fire extinguishing on the high floors.

[0010] Preferably, the switch valve includes a rotating rod movably connected to the rotating groove. One end of the rotating rod is fixedly provided with a second rotating handle, and the other end of the rotating rod is fixedly provided with a flow discharging plate. By rotating the second rotating handle, the rotating rod drives the flow discharging plate to rotate, realizing the on-off control of the water flow and facilitating the water supply to the subsequent water outlet pipe.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] An indoor fire hydrant reverse water supply device proposed by the present utility model drives the screw rod to rotate by rotating the first rotating handle. Since the screw rod is threadedly connected to the water outlet pipe, the screw rod drives the partition plate to move into the larger cavity in the water outlet pipe. At this time, when the switch valve is opened, the water flow flows out from the water outlet of the water outlet pipe, which is convenient for fire extinguishing and greatly improves the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is the overall structural schematic diagram of the present utility model;

[0014] Figure 2 is the structural schematic diagram of the fire fighting pipeline of the present utility model;

[0015] Figure 3 is the structural schematic diagram of the water outlet pipe of the present utility model;

[0016] Figure 4 is the structural schematic diagram of the one-way valve of the present utility model;

[0017] Figure 5 is the structural schematic diagram of the water inlet assembly of the present utility model;

[0018] Figure 6 is the structural schematic diagram of the switch valve of the present utility model.

[0019] In the figure: 1. Fire fighting pipeline; 11. Water inlet; 12. Through hole; 13. Second round pipe; 14. Rotating groove; 2. Water outlet pipe; 21. Shaft pipe; 22. First round pipe; 23. Disc; 24. Threaded groove; 25. First threaded pipe; 26. Plug cover; 3. One-way valve; 31. Screw rod; 32. First rotating handle; 33. First partition plate; 34. First sealing ring; 4. Water inlet assembly; 41. Water inlet pipe; 411. Second threaded pipe; 412. Screwing cap; 42. Elastic member; 421. Telescopic rod; 422. Second partition plate; 423. Second sealing ring; 424. Spring; 5. Switch valve; 51. Second rotating handle; 52. Rotating rod; 53. Flow discharging plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0021] To further understand the content of the present utility model, the present utility model will be described in detail in conjunction with the accompanying drawings.

[0022] Combined with Figure 1 , Figure 3-4 , an indoor fire hydrant reverse water supply device includes a fire pipeline 1. A water outlet pipe 2 is arranged on one side of the fire pipeline 1. A check valve 3 is arranged inside the water outlet pipe 2. An inlet assembly 4 is arranged at one end of the fire pipeline 1. A switch valve 5 is arranged inside the fire pipeline 1. A plug cover 26 is fitted at one end of the water outlet pipe 2. The check valve 3 includes a lead screw 31 threadedly connected to the water outlet pipe 2. A first turning handle 32 is fixedly arranged at one end of the lead screw 31. A first partition plate 33 is fixedly arranged at the other end of the lead screw 31. A first sealing ring 34 is fixedly arranged outside the first partition plate 33. By rotating the first turning handle 32 to drive the lead screw 31 to rotate, since the lead screw 31 is threadedly connected to the water outlet pipe 2, the lead screw 31 drives the partition plate 33 to move into the larger cavity inside the water outlet pipe 2. At this time, when the switch valve 5 is opened, water flows out from the opening of the water outlet pipe 2, which is convenient for fire extinguishing and greatly improves the practicability of the device.

[0023] Combined with Figure 3 , the water outlet pipe 2 includes a shaft pipe 21 fixedly connected to the fire pipeline 1. A first round pipe 22 is fixedly arranged at one end of the shaft pipe 21. A disc 23 is fixedly arranged at one end of the first round pipe 22. A threaded groove 24 is formed in the middle of the disc 23. The threaded groove 24 is threadedly connected to the lead screw 31. A first threaded pipe 25 is fixedly arranged on one side of the first round pipe 22. The first threaded pipe 25 is fitted and movably connected to the plug cover 26. The arrangement of the first threaded pipe 25 facilitates the quick connection of the fire hose during fire extinguishing and optimizes the operation process.

[0024] Combined with Figure 2 , a water inlet 11 is opened at the upper end of the fire pipeline 1. A through hole 12 is opened on the outer surface of the fire pipeline 1. The through hole 12 is cooperatively installed with the inlet assembly 4. A second round pipe 13 is fixedly arranged in the middle of the fire pipeline 1. A rotating groove 14 is opened on the outer surface of the second round pipe 13. The rotating groove 14 is cooperatively installed with the switch valve 5. By fixing the positions of the various components through the fire pipeline 1, the overall structural layout is more reasonable and the use process is convenient and clear.

[0025] Combined with Figure 5, the water inlet assembly 4 includes a water inlet pipe 41 fixedly connected to the through hole 12. An elastic member 42 fixedly connected to the fire pipeline 1 is movably arranged inside the water inlet pipe 41. The water inlet pipe 41 includes a second threaded pipe 411 fixedly connected to the through hole 12. A screw cap 412 is threadedly arranged at one end of the second threaded pipe 411. By the threaded connection between the second threaded pipe 411 and the screw cap 412, the screw cap 412 can be tightened during idle time to prevent foreign objects from entering the fire pipeline 1 and causing an impact.

[0026] Combined with Figure 5 , the elastic member 42 includes a telescopic rod 421 fixedly connected to the inner wall of the fire pipeline 1. A second partition plate 422 is fixedly arranged at one end of the telescopic rod 421. A second sealing ring 423 is fixedly arranged on the outer surface of the second partition plate 422. Both the second partition plate 422 and the second sealing ring 423 are slidably connected to the inner wall surface of the second threaded pipe 411. A spring 424 fixedly connected to the inner wall of the fire pipeline 1 is fixedly arranged at one end of the second partition plate 422. High-pressure water flow enters from the second threaded pipe 411. The high pressure pushes the second partition plate 422 and then compresses the spring 424 to contract, so as to enter the fire pipeline 1 for pressurization and be transported to the fire hydrants on high floors. When it is inconvenient for the high-rise buildings to effectively extinguish fires due to insufficient water pressure, etc., fire trucks can directly supply water reversely through the water inlet assembly 4 to achieve effective fire extinguishing on high floors.

[0027] Combined with Figure 6 , the switch valve 5 includes a rotating rod 52 movably connected to the rotating groove 14. A second rotating handle 51 is fixedly arranged at one end of the rotating rod 52. A flow discharge plate 53 is fixedly arranged at the other end of the rotating rod 52. By rotating the second rotating handle 51, the rotating rod 52 drives the flow discharge plate 53 to rotate, realizing the on-off control of the water flow and facilitating the water supply to the subsequent water outlet pipe 2.

[0028] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprises", "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0029] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An indoor fire hydrant reverse water supply device, comprising a fire-fighting pipe (1), a water outlet pipe (2) is arranged on one side of the fire-fighting pipe (1), a one-way valve (3) is arranged on the inner side of the water outlet pipe (2), a water inlet assembly (4) is arranged on one end of the fire-fighting pipe (1), and a switch valve (5) is arranged on the inner side of the fire-fighting pipe (1), characterized in that: One end of the water outlet pipe (2) is fitted with a plug cover (26), and the one-way valve (3) comprises a screw rod (31) threadedly connected to the water outlet pipe (2), one end of the screw rod (31) is fixedly provided with a turning handle (32), the other end of the screw rod (31) is fixedly provided with a partition plate (33), and the outer side of the partition plate (33) is fixedly provided with a sealing ring (34).

2. According to claim 1, the indoor fire hydrant reverse water supply device is characterized in that: The water outlet pipe (2) comprises an axial tube (21) fixedly connected to the fire-fighting pipe (1); a round tube (22) is fixedly arranged at one end of the axial tube (21); a disc (23) is fixedly arranged at one end of the round tube (22); a thread groove (24) is provided in the middle of the disc (23); the thread groove (24) is threadedly connected to the screw rod (31); a threaded tube (25) is fixedly arranged on one side of the round tube (22); and the threaded tube (25) is movably connected to the plug cover (26) in a fitting manner.

3. The indoor fire hydrant reverse water supply device according to claim 1, characterized in that: The upper end of the fire-fighting pipe (1) is provided with a water delivery port (11), the outer surface of the fire-fighting pipe (1) is provided with a through hole (12), the through hole (12) is installed in cooperation with the water inlet assembly (4), a second circular pipe (13) is fixedly arranged in the middle of the fire-fighting pipe (1), the outer surface of the second circular pipe (13) is provided with a rotating groove (14), and the rotating groove (14) is installed in cooperation with the switch valve (5).

4. The indoor fire hydrant reverse water supply device according to claim 3, characterized in that: The water inlet assembly (4) comprises a water inlet pipe (41) fixedly connected to the through hole (12); an elastic member (42) fixedly connected to the fire-fighting pipe (1) is movably provided inside the water inlet pipe (41); the water inlet pipe (41) comprises a second threaded pipe (411) fixedly connected to the through hole (12); a screw cap (412) is threadedly provided at one end of the second threaded pipe (411).

5. The indoor fire hydrant reverse water supply device according to claim 4, characterized in that: The elastic member (42) comprises a telescopic rod (421) fixedly connected to the inner wall of the fire-fighting pipe (1); a second partition (422) is fixedly provided at one end of the telescopic rod (421); a second sealing ring (423) is fixedly provided on the outer surface of the second partition (422); the second partition (422) and the second sealing ring (423) are both slidably connected to the inner wall surface of the second threaded pipe (411); and a spring (424) fixedly connected to the inner wall of the fire-fighting pipe (1) is fixedly provided at one end of the second partition (422).

6. The indoor fire hydrant reverse water supply device according to claim 1, characterized in that: The switch valve (5) comprises a rotating rod (52) movably connected to the rotating groove (14), a second rotating handle (51) is fixedly provided at one end of the rotating rod (52), and a discharge plate (53) is fixedly provided at the other end of the rotating rod (52).

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