Fire-fighting ball valve capable of being quickly cut off

Abstract

The utility model relates to a fire-fighting ball valve capable of being quickly cut off, which comprises a valve body and a pipeline, a spraying part is communicated with the lower part of the valve body, the spraying part is arranged in a buffer cavity, a water inlet part is communicated with the lower part of the buffer cavity in an up-down moving manner, a through hole is arranged on a water inlet head, and the lower part of the water inlet part is communicated with the pipeline. A protruding block is fixedly installed on the lower portion of the buffering cavity, a groove is formed in the protruding block, a fixing rod is rotationally installed on the pipeline, a bent head is arranged at one end of the fixing rod, the bent head and the groove are buckled through rotation, and the through hole and the protruding block move downwards through the water inlet part to achieve attached sealing. The structure utilizes water flow pressure to drive the water inlet part to move, realizes quick cut-off of the valve, is convenient to operate, does not need manual intervention, is particularly suitable for fire fighting trucks and other scenes needing quick cut-off and water supply position transfer, and effectively improves emergency response speed and safety.

Description

Technical Field

[0001] This utility model relates to a fire-fighting ball valve that can be quickly shut off. Background Technology

[0002] In fire protection systems, the ability to quickly cut off water supply or extinguishing agents is crucial for fire emergency response. Fire-fighting ball valves, as important components of pipeline control, are primarily responsible for controlling the flow of fire-fighting water, foam extinguishing agents, or gaseous extinguishing agents.

[0003] Traditional fire-fighting ball valves are mostly operated manually by rotating them 90° to open or close. While they are simple in structure and have strong sealing performance, they are inconvenient to operate and have a slow response time in emergencies. For example, when fighting chemical, electrical, or oil fires, water may react with the burning material, causing the fire to spread or even triggering an explosion. Quickly shutting off the water supply can prevent secondary disasters caused by the misuse of extinguishing agents. Furthermore, in complex fire scenes, fire-fighting strategies may need to be adjusted flexibly, requiring switching of extinguishing agents or changes in the spray area, which necessitates the rapid shut-off of the ball valve.

[0004] Therefore, how to enable ball valves to quickly cut off fluid in emergency situations is a technical problem that needs to be solved for current fire-fighting ball valves. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a fire-fighting ball valve that can quickly shut off the flow. By changing the relative position of the movable inlet and the protruding block, the through hole closes as the inlet moves. The movement of the inlet utilizes the pressure of the water itself, which can more easily and quickly shut off the fluid. This invention achieves its purpose as follows:

[0006] This utility model provides a fire-fighting ball valve with quick shut-off capability, comprising a valve body and a pipeline. A jetting part is connected and installed in the lower part of the valve body, and a buffer chamber is also installed in the lower part of the valve body. The jetting part is installed inside the buffer chamber. A water inlet is connected and installed in the lower part of the buffer chamber, which can move up and down. The water inlet head has a through hole. A pipeline is connected and installed in the lower part of the water inlet. A protruding block is fixedly installed in the lower part of the buffer chamber. The protruding block has a groove. A fixing rod is rotatably installed on the pipeline. One end of the fixing rod has a bent head. The bent head and the groove are engaged and installed after the fixing rod rotates. The through hole and the protruding block are engaged and installed after the water inlet moves downward.

[0007] Furthermore, the spray section includes a spray head, and the water inlet section includes a water inlet head, with the spray head and the water inlet head corresponding to each other.

[0008] Furthermore, a handle is installed on the pipe that can move up and down, and a pull wire is fixedly installed on the handle. The other end of the pull wire is fixedly installed to a fixed rod.

[0009] Furthermore, there are two through holes, which are symmetrically arranged on both sides of the water inlet.

[0010] Furthermore, there are two protruding blocks, which are symmetrically installed on both sides of the water inlet.

[0011] Furthermore, there are two fixing rods, which are symmetrically arranged on both sides of the pipe, and there are two pull wires.

[0012] Furthermore, the buffer cavity has a cuboid structure.

[0013] Compared with the prior art, the beneficial effects of this utility model are: this device uses the water flow pressure to drive the inlet part to move, which can realize the automatic and rapid shut-off of the valve, avoid cumbersome manual operation, and significantly improve the emergency response speed. Attached Figure Description

[0014] Figure 1 This is a frontal view of a fire-fighting ball valve that can quickly shut off the valve.

[0015] Figure 2 This is a schematic diagram of a fire-fighting ball valve that can be quickly shut off, viewed along a cross section AA.

[0016] Figure 3 This is a schematic diagram of a fire-fighting ball valve that can be quickly shut off, viewed from a cross-sectional perspective along BB.

[0017] Figure 4 This is a schematic diagram of the closed state of a fire-fighting ball valve that can be quickly shut off, viewed along a cross section AA.

[0018] In the diagram: 1. Valve body, 2. Buffer chamber, 3. Spray section, 4. Spray head, 5. Water inlet head, 6. Water inlet section, 7. Through hole, 8. Pipe, 9. Protruding block, 10. Bend head, 11. Groove, 12. Fixing rod, 13. Pull cable, 14. Handle. Detailed Implementation

[0019] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.

[0020] like Figure 1-4As shown, this embodiment of the present invention provides a fire-fighting ball valve with rapid shut-off capability, including a valve body 1 and a pipe 8. A jetting part 3 is connected and installed at the lower part of the valve body 1. A buffer chamber 2 is also installed at the lower part of the valve body 1, with the jetting part 3 installed inside the buffer chamber 2. A water inlet 6 is movably connected and installed at the lower part of the buffer chamber 2. A through hole 7 is provided on the water inlet head 5. The pipe 8 is connected and installed at the lower part of the water inlet 6. A protruding block 9 is fixedly installed at the lower part of the buffer chamber 2, with a groove 11 on the protruding block 9. A fixing rod 12 is rotatably installed on the pipe 8, with a bent head 10 at one end of the fixing rod 12. The bent head 10 and the groove 11 are engaged and connected after the fixing rod 12 rotates. The through hole 7 and the protruding block 9 are engaged and fitted together after the water inlet 6 moves downward. By changing the relative position of the movable water inlet 6 and the protruding block 9, the through hole 7 closes as the water inlet 6 moves. The movement of the water inlet 6 utilizes the water pressure itself, enabling more effortless and faster fluid shut-off.

[0021] In one possible implementation scenario, when fire trucks are fighting fires in an industrial park, they need to supply water to multiple fire points via long-distance hoses. The hoses are connected to the fire truck's water supply pipe 8. If a rapid change of fire location or water source is needed, firefighters can quickly disconnect the water flow using a quick-cut-off ball valve installed on the water supply pipe 8, preventing excessive water pressure from causing the hose to flail or damage the connection. During operation, firefighters only need to disconnect the fixing rod 12; the water pressure itself will drive the valve to close, quickly cutting off the water supply without manual valve rotation. After disconnection, firefighters can immediately disassemble the hoses and move to a new fire point, quickly reconnecting and resupplying water, significantly improving firefighting efficiency.

[0022] Specifically, the quick-shutdown fire-fighting ball valve includes a valve body 1 and a pipe 8. A jet nozzle 3 is installed at the lower part of the valve body 1, and a buffer chamber 2 is also installed at the lower part of the valve body 1. The buffer chamber 2 is designed to cooperate with the jet nozzle 4 and the water inlet 6 to form a seal; otherwise, leakage will occur. Simultaneously, one function of the buffer chamber 2 is to prevent damage to the device from the impact force of water. The jet nozzle 3 is installed inside the buffer chamber 2. The water inlet 6 is installed at the lower part of the buffer chamber 2 and can move vertically. It is understood that a sealing device exists between the water inlet 6 and the buffer chamber 2; this sealing device is the sealing technology of the valve body 1. The general sealing method of the technique allows the water inlet 6 to remain sealed while moving. The water inlet head 5 is provided with a through hole 7, which is for water to enter and to form a seal together with the protruding block 9. The lower part of the water inlet 6 is connected to a pipe 8. The lower part of the buffer chamber 2 is fixedly installed with a protruding block 9, which is provided with a groove 11. A fixing rod 12 is rotatably installed on the pipe 8. One end of the fixing rod 12 is provided with a bending head 10. The bending angle of the bending head 10 is 60-100 degrees. The bending head 10 and the groove 11 are engaged and installed after the fixing rod 12 rotates. The through hole 7 and the protruding block 9 are engaged and installed after the water inlet 6 moves downward.

[0023] In one embodiment, in order to improve the reliability of the movement of the water inlet head 5, the spray section 3 includes a spray head 4, and the water inlet section 6 includes a water inlet head 5, with the spray head 4 and the water inlet head 5 corresponding to each other.

[0024] In one embodiment, in order to facilitate the movement of the fixed rod 12 and cut off the flow more quickly and effortlessly, a handle 14 is installed on the pipe 8 that can move up and down. A pull wire 13 is fixedly installed on the handle 14, and the other end of the pull wire 13 is fixedly installed to the fixed rod 12. The pull wire 13 is a steel wire rope.

[0025] In one embodiment, in order to increase the water inlet efficiency, two through holes 7 are provided, and the through holes 7 are symmetrically arranged on both sides of the water inlet part 6.

[0026] In one embodiment, to improve the fixing effect, two protruding blocks 9 are provided, and the protruding blocks 9 are symmetrically installed on both sides of the water inlet 6. It can be understood that the protruding blocks 9 can also be circular, which not only has a sealing effect but also fixes the water inlet head 5, allowing the water inlet head 5 to move more smoothly. In this embodiment, the protruding blocks 9 only serve to fix the water inlet head 5, and the sealing effect is provided by the buffer cavity 2.

[0027] Furthermore, in order to further secure the inlet head 5, two fixing rods 12 are provided, which are symmetrically arranged on both sides of the pipe 8, and two pull wires 13 are provided.

[0028] In one embodiment, the buffer cavity 2 is a cuboid structure to further buffer the impact of water.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A fire-fighting ball valve with quick shut-off capability, characterized in that, The device includes a valve body and a pipe. A jetting part is connected and installed at the lower part of the valve body. A buffer chamber is also installed at the lower part of the valve body. The jetting part is installed inside the buffer chamber. A water inlet is connected and installed at the lower part of the buffer chamber, which can move up and down. The water inlet has a through hole. A pipe is connected and installed at the lower part of the water inlet. A protruding block is fixedly installed at the lower part of the buffer chamber. The protruding block has a groove. A fixing rod is rotatably installed on the pipe. One end of the fixing rod has a bent head. The bent head and the groove are engaged and installed after the fixing rod rotates. The through hole and the protruding block are engaged and installed after the water inlet moves downward.

2. The fire-fighting ball valve with quick shut-off capability according to claim 1, characterized in that, The spray section includes a spray head, and the water inlet section includes a water inlet head, with the spray head and the water inlet head corresponding to each other.

3. A fire-fighting ball valve with quick shut-off capability according to claim 1, characterized in that, A handle is installed on the pipe that can move up and down, and a pull wire is fixedly installed on the handle. The other end of the pull wire is fixedly installed to a fixed rod.

4. A fire-fighting ball valve with quick shut-off capability according to claim 1, characterized in that, The through holes are provided in two places, and the through holes are symmetrically arranged on both sides of the water inlet.

5. A fire-fighting ball valve with quick shut-off capability according to claim 1, characterized in that, Two protruding blocks are provided, and the protruding blocks are symmetrically installed on both sides of the water inlet.

6. A fire-fighting ball valve with quick shut-off capability according to claim 3, characterized in that, Two fixing rods are provided, which are symmetrically arranged on both sides of the pipe, and two pull wires are provided.

7. A fire-fighting ball valve with quick shut-off capability according to claim 1, characterized in that, The buffer cavity has a cuboid structure.

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