Quick-response deluge valve

Abstract

The utility model discloses a quick response deluge valve, which belongs to the technical field of deluge valves, and comprises a valve body, a water passing channel arranged in the valve body, a valve cover arranged on the front side of the valve body, a diaphragm arranged between the valve body and the valve cover, a control cavity formed between the diaphragm and the valve cover, a water replenishing mechanism arranged on the valve body, and a pushing mechanism arranged on the rear side of the valve body. The pushing mechanism comprises an air cylinder, a piston rod and a pushing plate, the air cylinder is arranged on the rear side of the valve body, a mounting hole is formed in the position, corresponding to the center of the diaphragm, of the rear end of the valve body and communicated with the rear side of the valve body and the water passing channel, the piston rod is arranged in the mounting hole, the rear end of the piston rod is connected with the air cylinder, and the front end of the piston rod extends into the water passing channel. According to the deluge valve, through a pushing mechanism composed of the air cylinder, the piston rod and the pushing plate, the diaphragm can be quickly pushed to the valve cover, communication of a water passing channel is achieved, the response time of the deluge valve is shortened, and a system can more quickly cope with emergency situations such as fire disasters.

Description

Technical Field

[0001] This utility model discloses a fast-response deluge valve, belonging to the field of deluge valve technology. Background Technology

[0002] A deluge valve is a control valve that automatically supplies water to fire-fighting water supply pipelines. It can be opened by electric, hydraulic, pneumatic, or mechanical means. The working principle and function of a deluge alarm valve is to control the flow of fire-fighting water in the building's fire-fighting pipelines in one direction towards the sprinkler heads according to the fire situation. It is a timely and efficient fire-fighting valve.

[0003] Currently, existing deluge valves simply use the water pressure inside the diaphragm cavity to expand the diaphragm and seal the fire water chamber. Since the valve body is sealed only by the expansion of the diaphragm, the diaphragm needs to undergo significant deformation to seal the valve body. However, large diaphragm deformation can easily lead to diaphragm damage and shorten its service life. After prolonged use, deluge valves are prone to slow diaphragm retraction when opening, resulting in slow response and untimely opening.

[0004] Therefore, a new solution is needed to address this problem. Utility Model Content

[0005] The purpose of this invention is to provide a fast-response deluge valve to solve the above-mentioned problems, thereby improving the response speed of the deluge valve.

[0006] This utility model achieves the above-mentioned objectives through the following technical solution: A valve body is provided, with an outlet and an inlet at its upper and lower ends, respectively. A water passage connecting the inlet and outlet is provided inside the valve body. An opening connecting the water passage is provided on the front side of the valve body. A detachable valve cover is provided at the opening of the valve body. A diaphragm is provided between the valve body and the valve cover, forming a control cavity between the diaphragm and the valve cover. A water replenishment mechanism connecting the control cavity is provided on the inlet side of the valve body. A pushing mechanism is provided on the rear side of the valve body. The pushing mechanism includes a cylinder, a piston rod, and a pushing plate. The cylinder is located on the rear side of the valve body. An installation hole is provided at the rear end of the valve body corresponding to the center of the diaphragm. The installation hole connects the rear side of the valve body and the water passage. The piston rod is located in the installation hole, and its rear end is connected to the cylinder. The front end of the piston rod extends into the water passage. The pushing plate is located at the front end of the piston rod.

[0007] By adopting the above technical solution, the inlet end of the valve body is connected to the water supply side pipe, and the outlet end is connected to the system side pipe. Water flows from the water supply side pipe into the water passage inside the valve body and then into the system side pipe. When the system side pipe is not in operation, water flows into the control chamber from the water replenishment mechanism at the inlet end, causing the diaphragm to expand under water pressure, thereby sealing and blocking the water passage, preventing water from flowing into the system side pipe. However, in the event of a fire that triggers the system side pipe, the water in the control chamber flows out from the water replenishment mechanism, causing the diaphragm to retract and restore the flow of water in the water passage. When the valve is opened, water can flow from the supply side pipe into the system side pipe for fire extinguishing. Through the setting of the pushing mechanism, the diaphragm expands after water is introduced into the control chamber and comes into contact with the push plate, which can close and block the water passage. When the diaphragm retracts, the cylinder can drive the piston rod to extend, which drives the push plate to move and push the diaphragm to move, effectively shortening the diaphragm retraction time. At the same time as the push plate moves, a gap is formed between the push plate and the valve body to allow the water to flow quickly from the inlet end to the outlet end, improving the valve response speed.

[0008] Preferably, the push plate has an arc-shaped structure, and a rubber layer is provided on the side of the push plate near the diaphragm.

[0009] By adopting the above technical solution, the arc-shaped push plate combined with the rubber layer can reduce wear on the diaphragm while ensuring thrust, thereby enhancing durability and improving the service life and stability of the diaphragm.

[0010] Preferably, the mounting hole is provided with a plurality of sealing rings, and the piston rod passes through the center of the plurality of sealing rings.

[0011] By adopting the above technical solution, the piston rod, through a multi-seal ring design, further prevents water leakage and extends its service life.

[0012] Preferably, the water replenishment mechanism includes a water replenishment pipe, an inlet pipe, an outlet pipe, a reset pipe, and a drain pipe. One end of the water replenishment pipe connects to the inlet end inside the valve body from the side of the valve body. The other end of the water replenishment pipe is provided with a T-connector. The water replenishment pipe is connected to the inlet pipe and the reset pipe through the T-connector. The other end of the inlet pipe is connected to the control chamber. One end of the outlet pipe is connected to the control chamber, and the other end is provided with a T-connector. The outlet pipe is connected to the other end of the reset pipe and the drain pipe through the T-connector. A one-way valve is provided on the inlet pipe. Valves are provided on both the reset pipe and the drain pipe. A branch pipe is provided between the valve and the T-connector on the drain pipe, and a solenoid valve is provided on the branch pipe.

[0013] By adopting the above technical solution, the water supply pipe introduces the water source from the inlet end into the control chamber through the water supply pipe, so that the diaphragm can expand under the action of the water source. The one-way valve on the water supply pipe can maintain the stability of the water supply and prevent backflow of the water source. The water outlet pipe is used to discharge the water source in the control chamber. The branch pipe and solenoid valve enable the device to be automatically triggered, while the drain pipe and valve are used for manual opening of the drain by the operator. At the same time, the reset pipe is set up for the reset work after the valve is opened.

[0014] Preferably, the size of the end of the water inlet pipe that connects to the control chamber is smaller than the size of the water outlet pipe.

[0015] By adopting the above technical solution, the size difference design between the inlet and outlet pipes can optimize the water flow balance, making the water flowing into the control chamber less than the water flowing out, effectively accelerating the release of water and pressure.

[0016] Preferably, the valve body is provided with a control module, which is connected to the solenoid valve and the cylinder.

[0017] By adopting the above technical solution, the control module coordinates the actions of the solenoid valve and the cylinder to achieve automated operation and improve control accuracy and reliability.

[0018] Preferably, a reset spring is provided inside the control cavity, a support block is provided on the diaphragm, and the two ends of the reset spring abut against the support block and the valve cover, respectively.

[0019] By adopting the above technical solution, the design of the reset spring and support block enhances the diaphragm's compressive strength and avoids deformation under long-term pressure.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] Firstly, the pushing mechanism, consisting of a cylinder, piston rod, and push plate, can quickly push the diaphragm towards the valve cover, causing it to retract rapidly and thus connecting the water passage. This shortens the response time of the deluge valve, enabling the system to respond more quickly to emergencies such as fires.

[0022] Secondly, the push plate has an arc-shaped structure and a rubber layer is provided on the side near the diaphragm. This design can better fit the diaphragm, improve the sealing effect, and prevent water from leaking between the push plate and the diaphragm.

[0023] Thirdly, by using the differentiated size design of the inlet and outlet pipes in the water replenishment mechanism, combined with the one-way valve and valve regulation, the pressure in the control chamber can be quickly established and released, solving the problem of response lag caused by pressure fluctuations in traditional valves.

[0024] Fourth, the valve body is equipped with a control module and connected to the solenoid valve and cylinder. The control module enables remote control and automated operation of the deluge valve, improving the system's intelligence level and facilitating linkage with other equipment such as fire protection systems to achieve more efficient fire prevention and control. Attached Figure Description

[0025] Figure 1 A front view of a fast-response deluge valve;

[0026] Figure 2 Left view of a fast-response deluge valve;

[0027] Figure 3 This is a cross-sectional view of a fast-response deluge valve.

[0028] Reference numerals in the attached diagram: 1. Valve body; 2. Outlet end; 3. Inlet end; 4. Water passage; 5. Valve cover; 6. Diaphragm; 7. Control chamber; 8. Cylinder; 9. Piston rod; 10. Push plate; 11. Sealing ring; 12. Water supply pipe; 13. Inlet pipe; 14. Outlet pipe; 15. Reset pipe; 16. Drain pipe; 17. Valve; 18. Solenoid valve; 19. Reset spring; 20. Support block. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the present utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0030] A fast-response deluge valve, such as Figures 1-3As shown, the device includes a valve body 1, with an outlet 2 and an inlet 3 at its upper and lower ends, respectively. A water passage 4 connecting the inlet 3 and outlet 2 is provided inside the valve body 1. An opening connecting the water passage 4 is provided on the front side of the valve body 1. A removable valve cover 5 is provided at the opening of the valve body 1. A diaphragm 6 is provided between the valve body 1 and the valve cover 5, forming a control chamber 7 between the diaphragm 6 and the valve cover 5. A water replenishment mechanism connecting the control chamber 7 is provided on the side of the inlet 3 of the valve body 1. The inlet 3 of the valve body 1 is connected to a water supply pipe. The outlet 2 connects to the system-side pipeline. Water flows from the supply-side pipeline into the water passage 4 inside the valve body 1 and then into the system-side pipeline. When the system-side pipeline is not in operation, water flows from the water replenishment mechanism at the inlet 3 into the control chamber 7, causing the diaphragm 6 to expand under water pressure, thereby blocking the water passage 4 and preventing water from flowing into the system-side pipeline. However, in the event of a fire that triggers the system-side pipeline, the water in the control chamber 7 flows out from the water replenishment mechanism, causing the diaphragm 6 to retract and restore the flow of water in the water passage 4, thus allowing water to flow freely. The fire extinguishing mechanism is located on the rear side of the valve body 1. It includes a cylinder 8, a piston rod 9, and a push plate 10. The cylinder 8 is positioned on the rear side of the valve body 1. A mounting hole is located at the center of the diaphragm 6 at the rear end of the valve body 1, connecting the rear side of the valve body 1 to the water passage 4. The piston rod 9 is positioned within the mounting hole, with its rear end connected to the cylinder 8. The front end of the piston rod 9 extends into the water passage 4. The push plate 10 is positioned at the front end of the piston rod 9, and the mechanism is activated by pushing the piston rod. The mechanism is designed so that after the diaphragm 6 expands in the control chamber 7 with the water source, it comes into contact with the push plate 10, which can close and block the water passage 4. When the diaphragm 6 retracts, the cylinder 8 can drive the piston rod 9 to extend, which drives the push plate 10 to move and push the diaphragm 6 to move, effectively shortening the retraction time of the diaphragm 6. At the same time as the push plate 10 moves, a gap is formed between the push plate 10 and the valve body 1 to allow the water source to pass through, so that the water source can quickly flow from the inlet end 3 to the outlet end 2, improving the response speed of the valve 17.

[0031] The push plate 10 has an arc-shaped structure. A rubber layer is provided on the side of the push plate 10 near the diaphragm 6. The arc-shaped push plate 10, together with the rubber layer, reduces wear on the diaphragm 6 while ensuring thrust, enhancing durability, and improving the service life and stability of the diaphragm 6. Several sealing rings 11 are provided in the mounting hole. The piston rod 9 passes through the center of several sealing rings 11. The piston rod 9 is designed with multiple sealing rings 11 to further prevent water leakage and extend service life.

[0032] The water replenishment mechanism includes a water replenishment pipe 12, an inlet pipe 13, an outlet pipe 14, a reset pipe 15, and a drain pipe 16. One end of the water replenishment pipe 12 connects from the side of the valve body 1 to the inlet end 3 inside the valve body 1. The other end of the water replenishment pipe 12 is equipped with a T-connector, which connects the water replenishment pipe 12 to the inlet pipe 13 and the reset pipe 15. The other end of the inlet pipe 13 is connected to the control chamber 7. One end of the outlet pipe 14 is connected to the control chamber 7, and the other end is equipped with a T-connector, which connects the outlet pipe 14 to the other end of the reset pipe 15 and the drain pipe 16. A one-way valve is installed on the inlet pipe 13. Valves 17 are installed on both the reset pipe 15 and the drain pipe 16. A branch pipe is installed on the drain pipe 16 between the valve 17 and the T-connector, and a solenoid valve is installed on the branch pipe. 18. The water supply pipe 12 introduces the water source from the inlet end 3 into the control chamber 7 through the inlet pipe 13, allowing the diaphragm 6 to expand under the action of the water source. The one-way valve on the inlet pipe 13 can maintain the stability of the water supply from the inlet pipe 13 and prevent backflow of water source. The outlet pipe 14 is used to discharge the water source in the control chamber 7. The branch pipe and solenoid valve 18 enable the device to be automatically triggered. The drain pipe 16 and valve 17 are used for manual opening of the drain by the operator. At the same time, the reset pipe 15 is set for the reset work after the valve 17 is opened. The size of the end of the inlet pipe 13 connected to the control chamber 7 is smaller than the size of the outlet pipe 14. The size difference design between the inlet pipe 13 and the outlet pipe 14 can optimize the water flow balance, so that the water source flowing into the control chamber 7 is less than the water source being discharged, effectively accelerating the release of water source and pressure.

[0033] The valve body 1 is equipped with a control module, which is connected to the solenoid valve 18 and the cylinder 8. The control module coordinates the actions of the solenoid valve 18 and the cylinder 8 to achieve automated operation, improve control accuracy and reliability. The control chamber 7 is equipped with a return spring 19, and the diaphragm 6 is equipped with a support block 20. The two ends of the return spring 19 abut against the support block 20 and the valve cover 5, respectively. The design of the return spring 19 and the support block 20 enhances the pressure resistance of the diaphragm 6 and avoids deformation under long-term pressure.

[0034] When the deluge valve is to be closed, the valves 17 and 18 on the reset pipe 15, drain pipe 16, and branch pipe are all closed. Water from the inlet 3 flows into the control chamber 7 through the water supply pipe 12 and inlet pipe 13. As water flows in, the diaphragm 6 expands under the pressure of the water, causing it to come into contact with the push plate 10 and the valve body 1 in the water passage 4, blocking and sealing the water passage 4, preventing water from flowing into the outlet 2. When the deluge valve is to be opened, the 18 receives a signal and opens, allowing water in the control chamber 7 to flow into the branch pipe of the drain pipe 16 through the outlet pipe 14 and then out through the 18, causing the diaphragm 6 to retract. At the same time, the 18 sends a signal to the control module to start the cylinder 8, which drives the push plate 10 to move through the piston rod 9, pushing the diaphragm 6 and increasing the retraction speed of the diaphragm 6, accelerating the flow of water in the water passage 4, and effectively improving the response speed of the valve 17.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0036] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A fast-response deluge valve, comprising a valve body (1), wherein the upper and lower ends of the valve body (1) are respectively an outlet (2) and an inlet (3), characterized in that: The valve body (1) has a water passage (4) connecting the inlet (3) and outlet (2) on its inner side. The valve body (1) has an opening on its front side connecting to the water passage (4). A detachable valve cover (5) is provided at the opening of the valve body (1). A diaphragm (6) is provided between the valve body (1) and the valve cover (5). A control chamber (7) is formed between the diaphragm (6) and the valve cover (5). A water replenishment mechanism connecting to the control chamber (7) is provided on the side of the inlet (3) of the valve body (1). The valve body (1) has a rear side... The pushing mechanism includes a cylinder (8), a piston rod (9) and a push plate (10). The cylinder (8) is located on the rear side of the valve body (1). The rear end of the valve body (1) is provided with an installation hole at the center of the diaphragm (6). The installation hole connects the rear side of the valve body (1) and the water passage (4). The piston rod (9) is located in the installation hole, and the rear end of the piston rod (9) is connected to the cylinder (8). The front end of the piston rod (9) extends into the water passage (4). The push plate (10) is located at the front end of the piston rod (9).

2. The deluge valve with fast response according to claim 1, characterized in that: The push plate (10) has an arc-shaped structure, and a rubber layer is provided on the side of the push plate (10) near the diaphragm (6).

3. The deluge valve with fast response according to claim 1, characterized in that: The mounting hole is provided with a plurality of sealing rings (11), and the piston rod (9) passes through the center of the plurality of sealing rings (11).

4. The deluge valve with fast response according to claim 1, characterized in that: The water replenishment mechanism includes a water replenishment pipe (12), an inlet pipe (13), an outlet pipe (14), a reset pipe (15), and a drain pipe (16). One end of the water replenishment pipe (12) is connected from the side of the valve body (1) to the inlet end (3) inside the valve body (1). The other end of the water replenishment pipe (12) is provided with a T-connector. The water replenishment pipe (12) is connected to the inlet pipe (13) and the reset pipe (15) respectively through the T-connector. The other end of the inlet pipe (13) is connected to the control chamber (7). The outlet pipe (14) is connected to the control chamber (7) at one end and a three-way connector is provided at the other end. The outlet pipe (14) is connected to the other end of the reset pipe (15) and the drain pipe (16) through the three-way connector. A one-way valve is provided on the inlet pipe (13). Valves (17) are provided on both the reset pipe (15) and the drain pipe (16). A branch pipe is provided between the drain pipe (16) and the valve (17) and the three-way connector. A solenoid valve (18) is provided on the branch pipe.

5. A fast-response deluge valve according to claim 4, characterized in that: The size of the end of the water inlet pipe (13) that connects to the control chamber (7) is smaller than the size of the water outlet pipe (14).

6. A fast-response deluge valve according to claim 4, characterized in that: The valve body (1) is equipped with a control module, which is connected to the solenoid valve (18) and the cylinder (8).

7. A fast-response deluge valve according to claim 1, characterized in that: A reset spring (19) is provided in the control cavity (7), and a support block (20) is provided in the diaphragm (6). The two ends of the reset spring (19) abut against the support block (20) and the valve cover (5) respectively.

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