A fire safety valve

Abstract

This invention relates to the field of valve technology, specifically to a fire safety valve, comprising a valve body with a valve disc inside, and a bracket mounted on the top of the valve body. An electromagnetic drive device is mounted on the upper part of the valve body, and an electromagnet pull rod is mounted on the output end of the electromagnetic drive device. A spring mechanism is provided at the lower part of the electromagnet pull rod, comprising a spring, a spring trigger, a spring push rod, and a trigger plate. The bottom end of the electromagnet pull rod is connected to the trigger plate. A plunger and a trigger are provided at the lower part of the spring mechanism, and the bottom of the trigger is rotatably connected to the outer wall of the bracket. In this fire safety valve, the electromagnetic drive device allows an external controller to remotely activate the valve when necessary, ensuring that even if the traditional triggering mechanism fails, the sprinkler system can be quickly activated in the event of a fire. A thermally fused trigger wire serves as a second safety measure; when the ambient temperature rises to a preset threshold, it automatically melts, thereby releasing the spring mechanism and opening the valve.

Description

Technical Field

[0001] This invention relates to the field of valve technology, and more specifically, to a fire safety valve. Background Technology

[0002] Automatic sprinkler systems are typically installed in enclosed spaces such as office buildings, residential buildings, public indoor spaces, warehouses, basements, and tunnels. The main pipeline of this system is equipped with a main valve switch, and the reliability of its operation directly determines the reliability of the fire sprinkler system, which in turn concerns the safety of life and property.

[0003] However, the commonly used main valve switch structure is relatively simple, and the sprinkler triggering mechanism is singular. In the event of a fire, this single triggering mechanism may lead to insufficient sensitivity of the automatic sprinkler system. Once the triggering system malfunctions, the automatic sprinkler system may also fail, thus failing to effectively protect life and property. Summary of the Invention

[0004] The purpose of this invention is to provide a fire safety valve that addresses the problem mentioned in the background section: the currently commonly used main valve switching structure is relatively simple, and the sprinkler triggering mechanism is singular. In the event of a fire, this singular triggering mechanism may lead to insufficient sensitivity of the automatic sprinkler system.

[0005] To achieve the above objectives, the present invention provides a fire safety valve, including a valve body, a valve disc provided inside the valve body, and a bracket 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 at the output end of the electromagnetic drive device. A spring mechanism is provided 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. 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 locked at the upper end of the plunger, and the upper end of the trigger is locked with the trigger latch plate.

[0008] The upper end of the spring trigger is connected to a thermally fused trigger wire, the lower end of the spring trigger is rotatably connected to the outer wall of the bracket, and one side of the bottom of the spring trigger is engaged with a spring push rod.

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

[0010] As a preferred embodiment of the present invention, when the electromagnet is energized, it pulls the electromagnet lever and the trigger plate upward, causing the top of the trigger to disengage from the trigger plate, and then rotates around the bottom end, causing the plunger to lose force and disengage from the sealing position.

[0011] As a preferred embodiment of the present invention, when the thermal fuse trigger line melts due to high temperature, the upper end of the spring trigger disengages from the thermal fuse trigger line, and the spring trigger rotates around the bottom end. The rotation of the spring trigger causes the spring push rod to no longer be jammed, thereby the spring pushes the spring push rod to move upward. The action of the spring pushes the spring push rod to move upward, which in turn pushes the trigger plate and the electromagnet pull rod to move upward, causing the top of the trigger to disengage from the trigger plate, and then rotates around the bottom end, causing the plunger to lose force and disengage from the sealing position.

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

[0013] As a preferred embodiment of the present invention, the valve body is connected to a conduit on the upper side wall of the diaphragm. The conduit introduces 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, which drives the piston to move downward. The piston drives the rotating wheel to rotate, and directs the downward thrust of the piston to the valve disc.

[0014] As a preferred embodiment of the present invention, the thrust transmitted by the impeller to the valve disc is greater than the thrust of the upstream medium on the valve disc, thereby achieving self-locking sealing of the valve.

[0015] As a preferred embodiment 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 a self-locking seal, and reducing the thrust on the valve disc to open the valve upon triggering.

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

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

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

[0020] 2. In this fire safety valve, the thermal fuse acts as a second safety feature. When the ambient temperature rises to a preset threshold, it automatically melts, releasing the spring mechanism and opening the valve. This mechanism ensures that the valve can automatically open in the event of a fire, even without an external power source or control signal.

[0021] 3. This fire safety valve, through a dual-trigger mechanism, significantly shortens the response time of the sprinkler system after a fire breaks out, improving the sensitivity of fire suppression. This is crucial for the rapid control of initial fires, effectively preventing the spread and expansion of the fire. The dual-trigger mechanism provides redundancy; even if one mechanism fails, the other can still function 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 seal under normal conditions, effectively preventing water waste. When the triggering mechanism is activated, the spring mechanism and trigger trigger quickly release the plunger, reducing the thrust on the valve disc and allowing the valve to open easily, ensuring a rapid response from the sprinkler system. Attached Figure Description

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

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

[0025] Figure 3 For the present invention Figure 1 A magnified view of a portion of point A in the middle;

[0026] Figure 4 For the present invention Figure 2 A magnified view of a portion 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 This is a schematic diagram of the spring mechanism in this invention;

[0029] The meanings of the labels in the diagram are as follows:

[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. Rotary wheel; 203. Piston; 204. Diaphragm; 205. Plunger; 206. Trigger; 207. Electromagnetic pull rod; 208. Electromagnet; 209. Electromagnetic drive housing; 301. Conduit; 401. Spring; 402. Spring trigger; 403. Spring push rod; 404. Trigger plate. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] This invention provides a fire safety valve, such as Figures 1-6 As shown, it includes a valve body 101, a valve disc 201 is provided inside 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. An electromagnet pull rod 207 is installed at 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 locked at the upper end of the plunger 205, and the upper end of the trigger 206 is locked with the trigger latch plate 404.

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

[0036] The valve body 101 is equipped with a valve disc 201. The opening and closing action of the valve disc enables the water flow control of the fire protection system, ensuring that it can be quickly opened for fire extinguishing when needed.

[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 electromagnet pull rod 207 at its output end, 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 electromagnet pull rod 207, together with the spring 401, spring trigger 402, and spring push rod 403 in the spring mechanism, constitutes 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 trigger 206 located at the lower part of the spring mechanism are mechanically connected to the outer wall of the bracket 103 via a rotatable connection between the bottom of the trigger 206 and the outer wall of the bracket 103, and the bottom side of the trigger 206 is engaged with the upper end of the plunger 205, while the upper end is engaged with the trigger latch plate 404. This achieves the mechanical transmission for valve opening. When the triggering mechanism is activated, the trigger 206 rotates around its bottom, releasing the plunger 205 and thus opening the valve.

[0039] The thermally fused trigger wire 106 connected to the upper end of the spring trigger 402 will melt and release the spring trigger 402 when the ambient temperature rises to a dangerous level. The spring trigger 402 rotates around the rotatable connection between its lower end and the outer wall of the bracket 103. Through the engagement of its bottom side with the spring push rod 403, it drives the spring push rod 403 to move upward, which in turn pushes the trigger plate 404 and the electromagnet pull rod 207 upward, opening the valve.

[0040] This dual-trigger mechanism enhances the safety of the valve, ensuring that it can automatically open to extinguish fires even in the absence of external power or control signals.

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

[0042] Specifically, when the electromagnet 208 is energized, it pulls the electromagnet lever 207 and the trigger plate 404 upwards, causing the top of the trigger 206 to disengage from the trigger plate 404, and then rotate around its bottom, causing the plunger 205 to lose force and disengage from the sealing position. This action mechanism realizes the electrically controlled opening of the valve, ensuring that the valve can be opened quickly and accurately for fire extinguishing in the event of a fire or when needed.

[0043] Furthermore, when the thermal fuse trigger line 106 melts due to high temperature, the upper end of the spring trigger 402 disengages from the thermal fuse trigger line 106, and the spring trigger 402 rotates around its bottom end. This rotation causes the spring push rod 403 to no longer be jammed, allowing the spring 401 to push the spring push rod 403 upwards. The action of the spring 401 pushes the spring push rod 403 upwards, which in turn pushes the trigger plate 404 and the electromagnet pull rod 207 upwards. This causes the top of the trigger 206 to disengage from the trigger plate 404, and then rotates around its bottom end, causing the plunger 205 to lose force and disengage from the sealing position. This mechanism ensures that even without external power or control signals, the valve can automatically open to extinguish the fire due to increased ambient temperature, 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. 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 achieves effective pressure transmission through mechanical transmission.

[0045] Furthermore, a conduit 301 is connected to the upper side wall of the valve body 101 on the diaphragm 204. The conduit 301 introduces the pressure of the medium upstream of the valve into the upper surface of the diaphragm 204. The medium pressure pushes the diaphragm 204 to generate a downward thrust, which drives the piston 203 to move downward. The piston 203 drives the rotating wheel 202 to rotate, directing the downward thrust of the piston 203 to the valve disc 201. This design utilizes the medium pressure upstream of the valve to enhance the valve's sealing performance and improve its self-locking capability.

[0046] Furthermore, the thrust transmitted from the impeller 202 to the valve disc 201 is greater than the thrust exerted on the valve disc 201 by the upstream medium, thus achieving a self-locking seal. This mechanism ensures that the valve maintains stable and reliable sealing performance when closed, effectively preventing media leakage.

[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 rotor shaft of the rotor 202 is connected to the valve stem 102. This design allows the valve to be opened and closed manually by operating the valve stem 102, providing another control method and increasing the flexibility and practicality of the valve.

[0048] Furthermore, it includes a pressure transmission structure for transmitting the pressure of the plunger 205 to the valve disc 201 to achieve a self-locking seal, and reducing the thrust on the valve disc to open the valve upon triggering. This structure enables the valve to maintain a tight seal when closed, while responding quickly and accurately to the trigger signal when it needs to be opened, thus achieving efficient valve control.

[0049] Furthermore, the valve body 101, the electromagnetic drive device 104, and the spring mechanism are all designed with high-temperature and corrosion-resistant materials to adapt to the operating environment of the fire protection system. This material selection ensures that the valve maintains stable performance and a long service life even in harsh environments, improving the reliability and safety of the fire protection system.

[0050] In use, the fire safety valve of the present invention first positions the valve disc 201 within the valve body 101. Through the action of the pressure transmission structure (including the piston 203, the rotor 202, and the diaphragm 204), and the pressure of the upstream medium introduced into the upper surface of the diaphragm 204 via the conduit 301, the diaphragm 204 generates a downward thrust, causing the piston 203 to move downwards. This thrust is then transmitted to the valve disc 201 via the rotor 202, keeping it tightly closed. The thrust transmitted from the rotor 202 to the valve disc 201 is greater than the thrust exerted on the valve disc 201 by the upstream medium, achieving a self-locking seal and effectively preventing medium leakage.

[0051] When the external controller sends an open signal, the electromagnet 208 in the electromagnetic drive device 104 is energized, generating a magnetic force that attracts the electromagnet lever 207 to move upward. The upward movement of the electromagnet lever 207 causes the trigger plate 404 to move upward, causing the top of the trigger 206 to disengage from the trigger plate 404 and rotate around its bottom. The rotation of the trigger 206 releases the plunger 205, causing it to lose force and disengage from the sealed position, thereby allowing the valve disc 201 to open and the fire protection system water to flow through.

[0052] When the ambient temperature rises to a dangerous level, the thermal fuse 106 melts, releasing the spring trigger 402. The spring trigger 402 rotates around its lower end, which is connected to the outer wall of the bracket 103, and its bottom side no longer holds the spring push rod 403. The elastic force of the spring 401 pushes the spring push rod 403 upward, which in turn pushes the trigger plate 404 and the electromagnet lever 207 upward. This movement process is similar to the electronically controlled opening process, ultimately causing the top of the trigger 206 to disengage from the trigger plate 404, rotate around its bottom end, and release the plunger 205, opening the valve 201 to extinguish the fire.

[0053] A valve stem 102 is installed on the outer wall of the valve body 101 near the rotary wheel 202, and the outer end of the rotary wheel 202's shaft is connected to the valve stem 102. When the valve needs to be opened manually, the operator can rotate the valve stem 102, thereby reducing or eliminating the thrust on the valve disc 201 through the rotation of the rotary wheel 202, thus manually opening the valve disc 201.

[0054] The valve body 101, electromagnetic drive device 104, and spring mechanism are all designed with high-temperature and corrosion-resistant materials to adapt to the harsh operating environment of fire protection systems. This material selection ensures that the valve maintains stable performance and a long service life even after prolonged use or exposure to high-temperature and corrosive environments.

[0055] Finally, it should be noted that the electronic components in the electromagnetic drive device and other components in this embodiment are all general standard parts or parts known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. In the idle part of this device, all the above-mentioned electrical components are connected by wires respectively. The specific connection method should refer to the working order between each electrical component in the above working principle to complete the electrical connection. All of these are technologies known in the art.

[0056] The foregoing has shown and described 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 to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fire safety valve, characterized in that: Includes a valve body (101), a valve disc (201) is provided inside 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 at 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). 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 locked at the upper end of the plunger (205). The upper end of the trigger (206) is locked with the trigger latch plate (404). The upper end of the spring trigger (402) is connected to a thermal fuse trigger wire (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 engaged with the spring push rod (403). When the thermal fuse trigger line (106) melts due to high temperature, the upper end of the spring trigger (402) disengages from the thermal fuse trigger line (106), and the spring trigger (402) rotates around the bottom end. The rotation of the spring trigger (402) causes the spring push rod (403) to no longer be stuck, so 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, which in turn pushes the trigger plate (404) and the electromagnet pull rod (207) to move upward, so that the top of the trigger (206) disengages from the trigger plate (404), and then rotates around the bottom end, causing the plunger (205) to lose force and disengage from the sealing position. It also includes a pressure transmission structure for transmitting the pressure of the plunger (205) to the valve disc (201) to achieve a self-locking seal and reducing the thrust on the valve disc to open the valve upon triggering.

2. The fire safety valve according to claim 1, characterized in that: The electromagnetic drive device (104) includes 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, it pulls the electromagnet lever (207) and the trigger plate (404) upward, causing the top of the trigger (206) to disengage from the trigger plate (404), and then rotate around the bottom end, causing the plunger (205) to lose force and disengage from the sealing position.

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

5. The fire safety valve according to claim 4, characterized in that: The valve body (101) is connected to a conduit (301) on the upper side wall of the diaphragm (204). 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, which drives the piston (203) to move downward. The piston (203) drives the rotating wheel (202) to rotate, and directs the downward thrust of the piston (203) to the valve disc (201).

6. The fire safety valve according to claim 5, characterized in that: The thrust transmitted from the impeller (202) to the valve disc (201) is greater than the thrust of the upstream medium on the valve disc (201), thus achieving self-locking sealing of the valve.

7. The fire safety valve according to claim 5, 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).

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

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