Fire-fighting electric safety valve

Abstract

The utility model provides a fire-fighting electric safety valve which comprises a valve body, a fixing box is fixedly arranged at the top end of the valve body, a valve element is movably arranged in the valve body through an adjusting mechanism, and the adjusting mechanism is arranged in the fixing box and comprises an adjusting rod. According to the fire-fighting electric safety valve, the adjusting rod, the valve rod and the valve element can be subjected to ascending adjustment through the servo motor, the gear and the rack, the safety valve can be conveniently and rapidly opened and closed, the fire-fighting electric safety valve can also be manually adjusted through a hand wheel, the size and the occupied space are small, and the fire-fighting electric safety valve can be conveniently installed; through the arrangement of the electromagnetic valve, the limiting rod and the limiting groove, the adjusting rod can be conveniently limited, the stability of the adjusting rod, the valve rod and the valve element can be improved, and the fire-fighting electric safety valve is in a normally-closed state in use; and the pressure sensor is arranged, so that the pressure in the fire-fighting pipeline can be conveniently detected, and the fire-fighting electric safety valve is opened according to the increase of the pressure.

Description

Technical Field

[0001] This utility model relates to the field of fire-fighting electric safety valve technology, specifically a fire-fighting electric safety valve. Background Technology

[0002] Fire-fighting electric safety valves are typically installed in critical parts of fire protection systems, such as fire pipelines. When the internal pressure of the fire protection system exceeds a preset safety value, the fire-fighting electric safety valve will automatically open to release the excessive pressure, preventing equipment from being damaged by excessive pressure, thereby ensuring the stability and safety of the fire protection system.

[0003] Existing fire-fighting electric safety valves consist of an electric actuator and a valve body. The electric actuator is mounted on top of the valve body and fixedly connected to the valve stem, regulating the opening and closing of the valve. However, fire-fighting electric safety valves with electric actuators are relatively large, requiring more space during installation and increasing costs, thus reducing their practicality.

[0004] Therefore, this utility model provides a fire-fighting electric safety valve. Utility Model Content

[0005] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a fire-fighting electric safety valve to solve the problems mentioned in the background. This utility model uses a servo motor, gears, and racks to adjust the adjusting rod, valve stem, and valve core, facilitating quick opening and closing of the safety valve. Furthermore, it has a small size and occupies little space, making it easy to install.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a fire-fighting electric safety valve, comprising a valve body, a fixed housing fixedly mounted on the top of the valve body, a valve core movably mounted inside the valve body via an adjustment mechanism, the adjustment mechanism being located inside the fixed housing, the adjustment mechanism including an adjustment rod, the adjustment rod being slidably mounted inside the fixed housing via a fixed rod, a rack fixedly mounted on the side wall of the adjustment rod, a gear rotatably mounted on one side of the rack via a rotating rod, a limit groove being provided inside one end of the adjustment rod, and a limit rod being provided on one side of the top of the adjustment rod via a magnetic attraction mechanism, one end of the limit rod being inserted into the limit groove.

[0007] Furthermore, the adjusting rod is L-shaped, and a valve stem is fixedly installed at the bottom end of the adjusting rod. The valve core is fixedly installed at the bottom end of the valve stem, and a pressure sensor is fixedly installed on one side of the valve stem corresponding to the inside of the fixing box and the valve body.

[0008] Furthermore, a valve seat is fixedly installed inside the valve body at the position corresponding to the valve core, and the valve core is inserted and installed inside the valve seat. A sealing seat is fixedly installed on the outside of the valve stem at the bottom end of the fixing box and inside the valve body.

[0009] Furthermore, the fixing rod is fixedly installed inside one end of the fixing box, and the top end of the adjusting rod is slidably installed on the outside of the fixing rod.

[0010] Furthermore, the magnetic attraction mechanism includes a shielding cover, and an electromagnet is fixedly installed inside the shielding cover.

[0011] Furthermore, the limiting rod is slidably positioned on one side of the electromagnet, and the limiting rod is T-shaped.

[0012] Furthermore, a spring is fixedly installed between one side of the limiting rod and the electromagnet, and one end of the limiting rod is slidably installed inside the side wall of the fixed box.

[0013] Furthermore, the rotating rod is rotatably mounted inside the top of the fixed box, a servo motor is fixedly installed on the outer wall of the front end of the fixed box, the output shaft of the servo motor is fixedly connected to the front end of the rotating rod, and a handwheel is fixedly installed on the rear end of the rotating rod corresponding to the outer side of the fixed box.

[0014] The beneficial effects of this utility model are as follows: This utility model provides a fire-fighting electric safety valve that uses a servo motor, gears, and racks to adjust the regulating rod, valve stem, and valve core, facilitating quick opening and closing of the safety valve. It can also be manually adjusted via a handwheel. Furthermore, its small size and compact size make it easy to install. The solenoid valve, limit rod, and limit groove facilitate limiting the regulating rod, improving the stability of the regulating rod, valve stem, and valve core, ensuring the fire-fighting electric safety valve is normally closed. The included pressure sensor allows for easy detection of pressure within the fire-fighting pipeline, enabling the fire-fighting electric safety valve to open upon pressure increase. Attached Figure Description

[0015] Figure 1 This is a structural diagram of a fire-fighting electric safety valve according to the present invention;

[0016] Figure 2 This is a front sectional view of a fire-fighting electric safety valve according to the present invention;

[0017] Figure 3 This utility model relates to a fire-fighting electric safety valve. Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 This is a structural diagram of the regulating mechanism of a fire-fighting electric safety valve according to the present invention;

[0019] In the diagram: 1. Valve body; 2. Fixing box; 3. Servo motor; 4. Handwheel; 5. Magnetic suction mechanism; 6. Valve seat; 7. Valve core; 8. Valve stem; 9. Adjusting rod; 10. Sealing seat; 11. Rack; 12. Gear; 13. Fixing rod; 14. Shielding cover; 15. Electromagnet; 16. Pressure sensor; 17. Spring; 18. Limiting rod; 19. Limiting groove. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] Please see Figures 1 to 4 This utility model provides a technical solution: a fire-fighting electric safety valve, including a valve body 1, a fixed housing 2 fixedly installed at the top of the valve body 1, a valve core 7 movably installed inside the valve body 1 via an adjusting mechanism, the adjusting mechanism being installed inside the fixed housing 2, the adjusting mechanism including an adjusting rod 9, the adjusting rod 9 being slidably installed inside the fixed housing 2 via a fixed rod 13, a rack 11 fixedly installed on the side wall of the adjusting rod 9, one side of the rack 11 being rotatably connected to a gear 12 via a rotating rod, and one side of the adjusting rod 9... The valve body 1 and the fixed box 2 are relatively small in size, which makes the fire-fighting electric safety valve occupy less space and reduces the cost of the fire-fighting electric safety valve, thereby improving the practicality of the fire-fighting electric safety valve. The insertion of the limit rod 18 and the limit groove 19 can limit the adjustment rod 9, making it convenient to set the fire-fighting electric safety valve in the normally closed state.

[0022] In this embodiment, the adjusting rod 9 is L-shaped. A valve stem 8 is fixedly mounted at the bottom end of the adjusting rod 9. The valve core 7 is fixedly mounted at the bottom end of the valve stem 8. A pressure sensor 16 is fixedly mounted on one side of the valve stem 8, corresponding to the inside of the fixed housing 2 and the valve body 1. A valve seat 6 is fixedly mounted inside the valve body 1, corresponding to the position of the valve core 7. The valve core 7 is inserted and installed inside the valve seat 6. A sealing seat 10 is fixedly mounted on the outer side of the valve stem 8, corresponding to the bottom end of the fixed housing 2 and the inside of the valve body 1. A rotating rod is rotatably limited and mounted inside the top of the fixed housing 2. A servo motor 3 is fixedly mounted on the outer wall of the front end of the fixed housing 2. The output shaft is fixedly connected to the front end of the rotating rod. A handwheel 4 is fixedly installed on the outer side of the fixed box 2 at the rear end of the rotating rod. The pressure sensor 16 can detect the internal pressure of the fire pipeline and control the start of the fire electric safety valve. At the same time, the servo motor 3 drives the rotating rod and gear 12 to rotate. The meshing action of gear 12 and rack 11 drives the adjusting rod 9 to move upward. The adjusting rod 9 drives the valve core 7 to move upward through the valve stem 8, so that the valve core 7 separates from the valve seat 6, which facilitates the depressurization of the fire pipeline. The sealing seat 10 can improve the sealing between the valve stem 8 and the valve body 1. The handwheel 4 can also be used to manually open the fire electric safety valve.

[0023] In this embodiment, the fixing rod 13 is fixedly installed inside one end of the fixing box 2, and the top end of the adjusting rod 9 is slidably installed on the outside of the fixing rod 13. The fixing rod 13 can limit the top end of the adjusting rod 9, and the combined action of the fixing rod 13 and the valve rod 8 can improve the stability of the adjusting rod 9 and facilitate the raising and lowering of the adjusting rod 9.

[0024] In this embodiment, the magnetic attraction mechanism 5 includes a shielding cover 14, an electromagnet 15 is fixedly installed inside the shielding cover 14, and a limiting rod 18 is slidably installed on one side of the electromagnet 15. The limiting rod 18 is T-shaped, and a spring 17 is fixedly installed between one side of the limiting rod 18 and the electromagnet 15. One end of the limiting rod 18 is slidably installed inside the side wall of the fixed box 2. When the electromagnet 15 is energized, it can attract the limiting rod 18 to move to the left, and one end slides out from the inside of the limiting groove 19, which facilitates the subsequent lifting and lowering adjustment of the adjusting rod 9.

[0025] When using this fire-fighting electric safety valve, it is installed at the end of the fire pipeline via valve body 1, and a discharge pipe is installed at the left end of valve body 1. When pressure sensor 16 detects that the internal pressure of the fire pipeline at the right end has increased beyond the safety value, it energizes electromagnet 15. Electromagnet 15 generates a magnetic field, which attracts limit rod 18 to move to the left. One end of limit rod 18 moves out of the limit groove 19, controlling servo motor 3 to start and drive rotating rod and gear 12 to rotate. Through the meshing of gear 12 and rack 11, adjusting rod 9 slides upward. Fixed rod 13 and valve stem 8 can limit adjusting rod 9. At the same time, adjusting rod 9 drives valve stem 8 and valve core 7 to move upward, so that valve core 7 separates from valve seat 6, facilitating the release of excessive pressure inside the fire pipeline. When the pressure drops to a safe value, the servo motor 3, gear 12, and rack 11 drive the adjusting rod 9 to descend. The adjusting rod 9 drives the valve stem 8 and valve core 7 to move downward, and the valve core 7 seals the valve seat 6. Then, the electromagnet 15 is de-energized, and the limit rod 18 moves in the opposite direction under the elastic force of the spring 17. One end of the limit rod 18 is inserted into the inside of the limit groove 19, which facilitates the quick opening and closing of the safety valve. The fire-fighting electric safety valve can also be manually adjusted by the handwheel 4. It has a small size and occupies little space, making it convenient to install the fire-fighting electric safety valve. The limit rod 18 is shaped like a cross, and one end of it passes through the shield 14 and is located on its outside. The upper and lower ends of the limit rod 18 are made of iron metal, which makes it easy to pull the limit rod 18 and facilitates manual adjustment of the fire-fighting electric safety valve.

[0026] 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 fire electric safety valve comprising a valve body (1), characterized in that, The top end of the valve body (1) is fixedly provided with a fixed box (2), the inside of the valve body (1) is movably provided with a valve core (7) through an adjusting mechanism, the adjusting mechanism is arranged in the inside of the fixed box (2), the adjusting mechanism comprises an adjusting rod (9), the adjusting rod (9) is slidably arranged in the inside of the fixed box (2) through a fixed rod (13), a rack (11) is fixedly arranged on the side wall of the adjusting rod (9), the rack (11) is movably provided with a gear (12) on one side through a rotating rod, the inside of one end of the adjusting rod (9) is provided with a limiting groove (19), one side of the top end of the adjusting rod (9) is provided with a limiting rod (18) through a magnetic attraction mechanism (5), one end of the limiting rod (18) is inserted into the inside of the limiting groove (19).

2. A fire safety electric motor operated valve according to claim 1 wherein: The shape of the adjusting rod (9) is "L" type, the bottom end of the adjusting rod (9) is fixedly provided with a valve rod (8), the valve core (7) is fixedly arranged at the bottom end of the valve rod (8), a pressure sensor (16) is fixedly arranged on one side of the valve rod (8) corresponding to the inside of the fixed box (2) and the valve body (1).

3. A fire safety electric motor operated valve according to claim 2 wherein: The inside of the valve body (1) is fixedly provided with a valve seat (6) corresponding to the position of the valve core (7), the valve core (7) is inserted and mounted in the inside of the valve seat (6), a sealing seat (10) is fixedly arranged on the outside of the valve rod (8) corresponding to the bottom end of the fixed box (2) and the inside of the valve body (1).

4. A fire safety electric motor operated valve according to claim 1 wherein: The fixed rod (13) is fixedly arranged in the inside of one end of the fixed box (2), the top end of the adjusting rod (9) is slidably mounted on the outside of the fixed rod (13).

5. A fire safety electric motor operated valve according to claim 1 wherein: The magnetic attraction mechanism (5) comprises a shielding cover (14), the inside of the shielding cover (14) is fixedly provided with an electromagnet (15).

6. A fire safety electric motor operated valve according to claim 5 wherein: The limiting rod (18) is limitingly and slidably arranged on one side of the electromagnet (15), the shape of the limiting rod (18) is "T" type.

7. A fire safety electric motor operated valve according to claim 6 wherein: A spring (17) is fixedly arranged between one side of the limiting rod (18) and the electromagnet (15), one end of the limiting rod (18) is slidably arranged in the inside of the side wall of the fixed box (2).

8. A fire safety electric motor operated valve according to claim 1 wherein: The rotating rod is limitingly and rotatably mounted in the inside of the top end of the fixed box (2), a servo motor (3) is fixedly arranged on the outer wall of the front end of the fixed box (2), the output shaft of the servo motor (3) is fixedly connected with the front end of the rotating rod, a hand wheel (4) is fixedly arranged on the outside of the fixed box (2) corresponding to the rear end of the rotating rod.

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