Fire safety valve

Abstract

The invention relates to the technical field of valves, in particular to a fire safety valve which comprises a valve body, a valve clack is arranged in the valve body, and a support is installed at the top of the valve body. An electromagnetic driving device is installed on the upper portion of the valve body, an electromagnet pull rod is installed at the output end of the electromagnetic driving device, a spring mechanism is arranged on the lower portion of the electromagnet pull rod and comprises a spring, a spring trigger, a spring push rod and a trigger buckle plate, and the bottom end of the electromagnet pull rod is connected with the trigger buckle plate. A plunger and a trigger are arranged on the lower portion of the spring mechanism, and the bottom of the trigger is rotationally connected with the outer wall of the support. According to the fire-fighting safety valve, the electromagnetic driving device allows an external controller to remotely activate the valve when necessary, and it is ensured that when a fire occurs, even if a traditional triggering mechanism fails, a water spraying fire extinguishing system can be rapidly started. The thermal fusing trigger line serves as a second fuse, and when the environment temperature rises to a preset threshold value, the thermal fusing trigger line is automatically fused, so that the spring mechanism is released, and the valve is opened.

Description

Technical Field

[0001] The present invention relates to the technical field of valves, in particular to a fire safety valve. Background Art

[0002] Fire sprinkler systems are usually installed in enclosed space buildings such as office buildings, residential buildings, public indoor places, warehouses, basements, tunnels, etc. The main pipeline of this system is equipped with a main valve switch, and the reliability of its working performance directly determines the reliability of the fire sprinkler system, which in turn affects the safety of life and property.

[0003] However, the main valve switch structure commonly used at present is relatively simple, and the sprinkler trigger mechanism is single. After a fire, this single trigger mechanism may lead to insufficient sensitivity of automatic sprinkler fire extinguishing. Once the trigger system fails, the automatic sprinkler fire extinguishing system may also fail, thus failing to effectively protect the safety of life and property. Summary of the invention

[0004] The purpose of the present invention is to provide a fire safety valve to solve the problem that the main valve switch structure currently used is relatively simple and the sprinkler trigger mechanism is single. After a fire, this single trigger mechanism may lead to insufficient sensitivity of automatic sprinkler fire extinguishing.

[0005] To achieve the above-mentioned object, the present invention provides a fire safety valve, comprising a valve body, a valve disc is arranged in the valve body, and a bracket is installed on the top of the valve body;

[0006] An electromagnetic drive device is installed on the upper part of the valve body, an electromagnet pull rod is installed on the output end of the electromagnetic drive device, a spring mechanism is arranged at the lower part of the electromagnet pull rod, the spring mechanism includes a spring, a spring trigger, a spring push rod and a trigger plate, and the bottom end of the electromagnet pull rod is connected to the trigger plate;

[0007] The lower part of the spring mechanism is provided with a plunger and a trigger, the bottom of the trigger is rotatably connected to the outer wall of the bracket, one side of the bottom of the trigger is clamped on the upper end of the plunger, and the upper end of the trigger is clamped on the trigger plate;

[0008] The upper end of the spring trigger is connected with a thermal fuse trigger line, the lower end of the spring trigger is rotatably connected with the outer wall of the bracket, and one side of the bottom of the spring trigger is clamped with a spring push rod.

[0009] As a preferred solution of the present invention, the electromagnetic drive device includes an electromagnetic drive box, an electromagnet is installed inside the electromagnetic drive box, and the electromagnet is connected to an external controller through a power line.

[0010] As a preferred embodiment of the present invention, when the electromagnet is energized, the electromagnet pull rod and the trigger plate are pulled upward, so that the top end of the trigger is separated from the trigger plate, and then rotates around the bottom end and causes the plunger to lose force and leave the sealing position.

[0011] As a preferred embodiment of the present invention, when the thermal fuse trigger wire melts due to high temperature, the upper end of the spring trigger is separated from the thermal fuse trigger wire, and the spring trigger rotates around the bottom end. The rotation of the spring trigger makes the spring push rod no longer stuck, so that the spring pushes the spring push rod to move upward. The action of the spring pushes the spring push rod to move upward, and then pushes the trigger plate and the electromagnet pull rod to move upward, so that the top end of the trigger trigger is separated from the trigger plate, and then rotates around the bottom end and causes the plunger to lose force and leave the sealing position.

[0012] As a preferred solution of the present invention, the pressure transmission structure includes a piston, a rotor and a diaphragm, and the downward thrust of the piston is transmitted to the valve disc through the rotor.

[0013] As a preferred embodiment of the present invention, the valve body is located on the upper side wall of the diaphragm and is connected to a conduit, which guides the pressure of the medium at the upstream end of the valve into the upper surface of the diaphragm. The medium pressure pushes the diaphragm to generate a downward thrust, driving the piston to move downward, and the piston drives the wheel to rotate, directing the downward thrust of the piston to the valve disc.

[0014] As a preferred solution of the present invention, the thrust transmitted to the valve disc by the rotor is greater than the thrust of the medium at the upstream end of the valve on the valve disc, thereby achieving a self-locking seal of the valve.

[0015] As a preferred solution of the present invention, a valve stem is installed on the outer wall of the valve body near the rotating wheel, and the outer end of the rotating shaft of the rotating wheel is connected to the valve stem.

[0016] As a preferred embodiment of the present invention, it also includes a pressure transmission structure for transmitting the pressure of the plunger to the valve disc to achieve self-locking sealing, and reducing the thrust on the valve disc to open the valve when triggered.

[0017] As a preferred solution of the present invention, the valve body, electromagnetic drive device and spring mechanism are all designed to be high temperature resistant and corrosion resistant materials to adapt to the use environment of the fire protection system.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. In this fire safety valve, the electromagnetic drive device allows an external controller to remotely activate the valve when necessary, ensuring that the sprinkler system can be quickly activated when a fire occurs even if the traditional trigger mechanism fails.

[0020] 2. In this fire safety valve, the thermal fuse trigger line serves as the second insurance. When the ambient temperature rises to the preset threshold, it automatically fuses, thereby releasing the spring mechanism and opening the valve. This mechanism ensures that the valve can automatically open when a fire occurs even without external power or control signals.

[0021] 3. In the fire safety valve, through the dual trigger mechanism, the present invention greatly shortens the response time of the water sprinkler system after a fire occurs and improves the sensitivity of fire extinguishing. This is crucial for the rapid control of an initial fire and can effectively prevent the spread and expansion of the fire. The dual trigger mechanism provides a redundant design. Even if one mechanism fails, the other mechanism can still work normally, ensuring the overall reliability of the fire protection system.

[0022] 4. In this fire safety valve, the pressure transmission structure enables the valve to maintain a self-locking sealing state under normal circumstances, effectively preventing the waste of water resources. When the trigger mechanism is activated, the spring mechanism and the trigger trigger quickly release the plunger, reducing the thrust on the valve disc, allowing the valve to open easily and ensuring the rapid response of the sprinkler system. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is one of the overall structural schematic diagrams of the present invention;

[0024] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0025] Figure 3 For the present invention Figure 1 A local enlarged schematic diagram of the middle A;

[0026] Figure 4 For the present invention Figure 2 A partial enlarged schematic diagram of point B in the middle;

[0027] Figure 5 This is the second schematic diagram of the overall structure of the present invention;

[0028] Figure 6 It is a structural schematic diagram of the spring mechanism in the present invention;

[0029] The meaning of each number in the figure is:

[0030] 101. Valve body; 102. Valve stem; 103. Bracket; 104. Electromagnetic drive device; 105. Power cord; 106. Thermal fuse trigger wire; 201. Valve disc; 202. Rotor; 203. Piston; 204. Diaphragm; 205. Plunger; 206. Trigger; 207. Electromagnet pull rod; 208. Electromagnet; 209. Electromagnetic drive box; 301. Conduit; 401. Spring; 402. Spring trigger; 403. Spring push rod; 404. Trigger plate. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] The present invention provides a fire safety valve, such as Figure 1-Figure 6 As shown, it includes a valve body 101, a valve flap 201 is arranged in the valve body 101, and a bracket 103 is installed on the top of the valve body 101;

[0033] An electromagnetic drive device 104 is installed on the upper part of the valve body 101, and an electromagnet pull rod 207 is installed on the output end of the electromagnetic drive device 104. A spring mechanism is provided at the lower part of the electromagnet pull rod 207. The spring mechanism includes a spring 401, a spring trigger 402, a spring push rod 403 and a trigger plate 404. The bottom end of the electromagnet pull rod 207 is connected to the trigger plate 404.

[0034] The lower part of the spring mechanism is provided with a plunger 205 and a trigger 206. The bottom of the trigger 206 is rotatably connected to the outer wall of the bracket 103. One side of the bottom of the trigger 206 is clamped on the upper end of the plunger 205. The upper end of the trigger 206 is clamped with the trigger plate 404.

[0035] The upper end of the spring trigger 402 is connected to the thermal fuse trigger line 106 , the lower end of the spring trigger 402 is rotatably connected to the outer wall of the bracket 103 , and one side of the bottom of the spring trigger 402 is clamped with the spring push rod 403 .

[0036] A valve flap 201 is provided in the valve body 101, and the water flow control of the fire protection system is achieved through the opening and closing action of the valve flap, ensuring that it can be quickly opened for fire extinguishing when necessary.

[0037] The electromagnetic drive device 104 installed on the upper part of the valve body 101 can respond to external control signals and drive the spring mechanism below through the electromagnetic pull rod 207 at its output end, thereby realizing the remote electric control opening function of the valve and improving the response speed and flexibility of the fire protection system. The trigger plate 404 connected to the bottom of the electromagnetic pull rod 207, together with the spring 401, spring trigger 402, and spring push rod 403 in the spring mechanism, constitute a complex mechanical transmission system. The design of the spring mechanism enables the valve to maintain stable self-locking in the closed state, effectively preventing accidental opening and waste of resources.

[0038] The plunger 205 and the trigger 206 disposed at the lower part of the spring mechanism realize the mechanical transmission of the valve opening through the rotational connection between the bottom of the trigger 206 and the outer wall of the bracket 103, and the clamping of one side of the bottom of the trigger 206 on the upper end of the plunger 205 and the clamping connection between the upper end and the trigger plate 404. When the trigger mechanism is activated, the trigger 206 rotates around the bottom to release the plunger 205, thereby opening the valve.

[0039] The thermal fuse trigger wire 106 connected to the upper end of the spring trigger 402 will melt when the ambient temperature rises to a dangerous level, releasing the spring trigger 402. The spring trigger 402 rotates around the rotation connection between the lower end and the outer wall of the bracket 103, and through the clamping connection between the bottom side and the spring push rod 403, the spring push rod 403 is driven to move upward, thereby pushing the trigger plate 404 and the electromagnet pull rod 207 to move upward, opening the valve.

[0040] This dual trigger mechanism enhances the safety of the valve, ensuring that the valve will automatically open to extinguish the fire even without external power or control signals.

[0041] In this embodiment, the electromagnetic drive device 104 includes an electromagnetic drive box 209, and an electromagnet 208 is installed inside the electromagnetic drive box 209. The electromagnet 208 is connected to an external controller through a power line 105. This design enables the electromagnetic drive device to respond to external control signals and control the opening and closing of the valve by energizing and de-energizing the electromagnet 208, thereby improving the automation and response speed of the fire protection system.

[0042] Specifically, when the electromagnet 208 is energized, the electromagnet pull rod 207 and the trigger plate 404 are pulled upward, so that the top of the trigger 206 is separated from the trigger plate 404, and then rotates around the bottom end and causes the plunger 205 to lose force and leave the sealing position. This action mechanism realizes the electronically controlled opening of the valve, ensuring that the valve can be opened quickly and accurately to extinguish the fire when a fire occurs or when needed.

[0043] Furthermore, when the thermal fuse trigger wire 106 is melted due to high temperature, the upper end of the spring trigger 402 is separated from the thermal fuse trigger wire 106, and the spring trigger 402 rotates around the bottom end. The rotation of the spring trigger 402 makes the spring push rod 403 no longer stuck, so that the spring 401 pushes the spring push rod 403 to move upward. The action of the spring 401 pushes the spring push rod 403 to move upward, and then pushes the trigger plate 404 and the electromagnet pull rod 207 to move upward, so that the top of the trigger trigger 206 is separated from the trigger plate 404, and then rotates around the bottom end and causes the plunger 205 to lose force and leave the sealing position. This mechanism ensures that even in the absence of external power or control signals, the valve can be automatically opened due to the increase in ambient temperature to extinguish the fire, thereby improving the safety of the fire protection system.

[0044] Furthermore, the pressure transmission structure includes a piston 203, a rotor 202 and a diaphragm 204, and the downward thrust of the piston 203 is transmitted to the valve disc 201 through the rotor 202. This design makes the opening and closing of the valve more stable and reliable, and realizes effective pressure transmission through mechanical transmission.

[0045] Furthermore, the upper side wall of the valve body 101 located on the diaphragm 204 is connected with a conduit 301, and the conduit 301 introduces the pressure of the medium at the upstream end of the valve into the upper surface of the diaphragm 204. The medium pressure pushes the diaphragm 204 to generate a downward thrust, driving the piston 203 to move downward, and the piston 203 drives the runner 202 to rotate, guiding the downward thrust of the piston 203 to the valve disc 201. This design utilizes the medium pressure at the upstream end of the valve to enhance the sealing performance of the valve and improve the self-locking ability of the valve.

[0046] Furthermore, the thrust of the rotor 202 on the valve disc 201 is greater than the thrust of the medium at the upstream end of the valve on the valve disc 201, thus achieving a self-locking seal of the valve. This mechanism ensures that the valve can maintain a stable and reliable sealing performance in the closed state, effectively preventing leakage of the medium.

[0047] Furthermore, a valve stem 102 is installed on the outer wall of the valve body 101 near the rotor 202, and the outer end of the rotating shaft of the rotor 202 is connected to the valve stem 102. This design allows the valve to be opened and closed by manually operating the valve stem 102, providing another control method and increasing the flexibility and practicality of the valve.

[0048] Furthermore, it also includes a pressure transmission structure, which is used to transmit the pressure of the plunger 205 to the valve disc 201 to achieve self-locking sealing, and reduce the thrust on the valve disc to open the valve when triggered. This structure enables the valve to maintain a tight sealing performance when closed, and can respond to the trigger signal quickly and accurately when it needs to be opened, thereby achieving efficient control of the valve.

[0049] Furthermore, the valve body 101, the electromagnetic drive device 104 and the spring mechanism are all designed to be high temperature resistant and corrosion resistant materials to adapt to the use environment of the fire protection system. This material selection ensures that the valve can still maintain stable performance and long life in harsh environments, thereby improving the reliability and safety of the fire protection system.

[0050] When the fire safety valve of the present invention is in use, the valve disc 201 is first located in the valve body 101, and through the action of the pressure transmission structure (including the piston 203, the rotor 202 and the diaphragm 204), and the pressure of the medium at the upstream end of the valve introduced into the upper surface of the diaphragm 204 through the conduit 301, the diaphragm 204 generates a downward thrust, driving the piston 203 to move downward, and then transmitting the thrust to the valve disc 201 through the rotor 202, so that it remains in a tightly closed state. The thrust transmitted to the valve disc 201 by the rotor 202 is greater than the thrust of the medium at the upstream end of the valve on the valve disc 201, realizing the self-locking seal of the valve and effectively preventing medium leakage.

[0051] When the external controller sends an opening signal, the electromagnet 208 in the electromagnetic drive device 104 is energized, generating a magnetic force to attract the electromagnet pull rod 207 to move upward. The upward movement of the electromagnet pull rod 207 drives the trigger plate 404 to move upward, causing the top of the trigger trigger 206 to separate from the trigger plate 404 and then rotate around the bottom. The rotation of the trigger trigger 206 releases the plunger 205, causing it to lose force and leave the sealing position, thereby allowing the valve flap 201 to open and the water of the fire protection system to flow through.

[0052] When the ambient temperature rises to a dangerous level, the thermal fuse trigger wire 106 melts, releasing the spring trigger 402. The spring trigger 402 rotates around the rotation connection between the lower end and the outer wall of the bracket 103, and the bottom side of the spring trigger 402 no longer clamps the spring push rod 403. The elastic force of the spring 401 pushes the spring push rod 403 upward, thereby pushing the trigger plate 404 and the electromagnet pull rod 207 upward. This movement process is similar to the electric control opening process, and eventually the top of the trigger trigger 206 is separated from the trigger plate 404, rotates around the bottom end and releases the plunger 205, and opens the valve disc 201 to extinguish the fire.

[0053] A valve stem 102 is installed on the outer wall of the valve body 101 near the rotor 202, and the outer end of the rotating shaft of the rotor 202 is connected to the valve stem 102. When the valve needs to be opened manually, the operator can rotate the valve stem 102 to reduce or eliminate the thrust on the valve disc 201 through the rotation of the rotor 202, thereby manually opening the valve disc 201.

[0054] The valve body 101, electromagnetic drive device 104 and spring mechanism are all designed to be high temperature resistant and corrosion resistant materials to adapt to the harsh use environment of the fire protection system. This material selection ensures that the valve can maintain stable performance and long life even when used for a long time or exposed to high temperature and corrosive environment.

[0055] Finally, it should be noted that the electromagnetic drive device in this embodiment, etc., the electronic components in the above-mentioned parts are all universal standard parts or parts known to technical personnel in this field, and their structures and principles can be known to technical personnel in this field through technical manuals or through conventional experimental methods. In the idle part of this device, all the above-mentioned electrical components are connected by wires respectively. The specific connection means should refer to the working sequence between the electrical components in the above-mentioned working principle to complete the electrical connection, which are all well-known technologies in the field.

[0056] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A fire safety valve, characterized in that: It comprises a valve body (101), a valve flap (201) is arranged in the valve body (101), and a bracket (103) is installed on the top of the valve body (101); An electromagnetic drive device (104) is installed on the upper part of the valve body (101), an electromagnet pull rod (207) is installed on the output end of the electromagnetic drive device (104), a spring mechanism is provided at the lower part of the electromagnet pull rod (207), the spring mechanism comprises a spring (401), a spring trigger (402), a spring push rod (403) and a trigger plate (404), and the bottom end of the electromagnet pull rod (207) is connected to the trigger plate (404); A plunger (205) and a trigger (206) are provided at the lower part of the spring mechanism, the bottom of the trigger (206) is rotatably connected to the outer wall of the bracket (103), one side of the bottom of the trigger (206) is clamped on the upper end of the plunger (205), and the upper end of the trigger (206) is clamped on the trigger plate (404); The upper end of the spring trigger (402) is connected to a thermal fuse trigger line (106), the lower end of the spring trigger (402) is rotatably connected to the outer wall of the bracket (103), and one side of the bottom of the spring trigger (402) is clamped with the spring push rod (403).

2. The fire safety valve according to claim 1, characterized in that: The electromagnetic drive device (104) comprises an electromagnetic drive housing (209), an electromagnet (208) is installed inside the electromagnetic drive housing (209), and the electromagnet (208) is connected to an external controller via a power line (105).

3. The fire safety valve according to claim 2, characterized in that: When the electromagnet (208) is energized, the electromagnet pull rod (207) and the trigger plate (404) are pulled upward, so that the top end of the trigger (206) is separated from the trigger plate (404), and then rotates around the bottom end and causes the plunger (205) to lose force and leave the sealing position.

4. The fire safety valve according to claim 1, characterized in that: When the thermal fuse trigger wire (106) is melted due to high temperature, the upper end of the spring trigger (402) is separated from the thermal fuse trigger wire (106), and the spring trigger (402) rotates around the bottom end. The rotation of the spring trigger (402) makes the spring push rod (403) no longer stuck, so that the spring (401) pushes the spring push rod (403) to move upward. The action of the spring (401) pushes the spring push rod (403) to move upward, and then pushes the trigger plate (404) and the electromagnet pull rod (207) to move upward, so that the top end of the trigger trigger (206) is separated from the trigger plate (404), and then rotates around the bottom end and causes the plunger (205) to lose force and leave the sealing position.

5. The fire safety valve according to claim 1, characterized in that: The pressure transmission structure comprises a piston (203), a rotating wheel (202) and a diaphragm (204), and the downward thrust of the piston (203) is transmitted to the valve disc (201) through the rotating wheel (202).

6. The fire safety valve according to claim 5, characterized in that: The valve body (101) is located on the upper side wall of the diaphragm (204) and is connected to a conduit (301). The conduit (301) guides the pressure of the medium at the upstream end of the valve into the upper surface of the diaphragm (204). The medium pressure pushes the diaphragm (204) to generate a downward thrust, driving the piston (203) to move downward. The piston (203) drives the rotating wheel (202) to rotate, and guides the downward thrust of the piston (203) to the valve disc (201).

7. The fire safety valve according to claim 6, characterized in that: The thrust transmitted by the rotor (202) to the valve disc (201) is greater than the thrust of the medium at the upstream end of the valve on the valve disc (201), thereby achieving a self-locking seal of the valve.

8. The fire safety valve according to claim 6, characterized in that: A valve stem (102) is installed on the outer wall of the valve body (101) near the rotating wheel (202), and the outer end of the rotating shaft of the rotating wheel (202) is connected to the valve stem (102).

9. The fire safety valve according to claim 1, characterized in that: It also includes a pressure transmission structure for transmitting the pressure of the plunger (205) to the valve disc (201) to achieve self-locking sealing, and reducing the thrust on the valve disc to open the valve when triggered.

10. The fire safety valve according to claim 1, characterized in that: The valve body (101), the electromagnetic drive device (104) and the spring mechanism are all designed to be made of high temperature resistant and corrosion resistant materials to adapt to the use environment of the fire protection system.

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