Multi-blade type fire-fighting smoke exhaust valve

Abstract

The utility model relates to the field of smoke exhaust valves, and discloses a multi-blade type fire-fighting smoke exhaust valve which comprises a smoke exhaust pipe, an execution driver is fixedly connected to the middle of the upper surface of the smoke exhaust pipe, a blade assembly is arranged in the smoke exhaust pipe, and the blade assembly comprises a plurality of movable shafts rotationally connected to the inner top face of the smoke exhaust pipe. A shaft body of the movable shaft is fixedly connected with two movable blades, and the lower end of the shaft body of the movable shaft penetrates through the smoke exhaust pipe and is fixedly connected with two bearing rods. According to the utility model, the execution driver drives the movable shaft in the middle to rotate, so that the bearing rod at the lower end of the movable shaft in the middle drives the connecting rod to move, then the connecting rod drives the plurality of bearing rods on the two sides to rotate, the bearing rods respectively drive the movable shafts to rotate, and the movable shafts drive the movable blades to rotate; the problems that the response speed of a valve is low under the overheating condition and the valve can be opened in time and the flue gas emission efficiency is affected due to the fact that a belt is used as a transmission mechanism traditionally are solved.

Description

Technical Field

[0001] The utility model relates to the field of smoke exhaust valves, in particular to a multi-leaf fire smoke exhaust valve. Background Art

[0002] In modern high-rise buildings, underground parking lots, shopping malls, industrial plants and other places, when a fire occurs, the accumulation of smoke will cause great difficulties for personnel evacuation and fire rescue. Therefore, an effective smoke exhaust system is crucial to improving the safety of buildings during fires. Multi-leaf fire smoke exhaust valve is a common type of fire smoke exhaust valve, which is widely used in ventilation ducts. The opening or closing of the valve leaf is used to control the emission of smoke. Compared with the traditional single-leaf valve, the multi-leaf smoke exhaust valve has the advantages of simple structure, small size, wide application range, and easy maintenance. Therefore, a multi-leaf fire smoke exhaust valve is proposed.

[0003] Most of the transmission mechanisms of existing fire smoke exhaust valves use belts. When in use, the heat of the smoke may cause the belt to heat up and soften, thereby reducing the friction between the belt and the belt pulley. As a result, the blades cannot be opened or closed quickly, and the ideal smoke exhaust effect cannot be achieved. At the same time, the smoke contains a lot of heat, and the heat resistance of existing blades and smoke exhaust pipes is relatively poor. When the smoke continues to heat the blades, the blades may expand, which may cause the blades to be unable to open and close effectively, greatly reducing its reliability and safety in complex environments. For this reason, technical improvements are urgently needed. Utility Model Content

[0004] The purpose of the present utility model is to solve the shortcomings existing in the prior art, and a multi-leaf fire smoke exhaust valve is proposed. Compared with the existing smoke exhaust valve, the smoke exhaust valve is provided with a cooling component, and the water inlet valve is connected to the fire water pipe. When in use, the water source is allowed to enter the interior of the circulation pipe by opening the water inlet valve, and then part of the water source inside the circulation pipe is atomized and sprayed out from the atomizing nozzle, thereby cooling the flowing smoke. At the same time, part of the water source enters the interior of the movable blades to cool the movable blades, thereby avoiding the problem that the movable blades cannot be effectively opened or closed due to heat expansion.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A multi-leaf fire smoke exhaust valve, comprising a smoke exhaust pipe, wherein an actuator is fixedly connected to the middle portion of the upper surface of the smoke exhaust pipe, a blade assembly is provided inside the smoke exhaust pipe, and the blade assembly comprises a plurality of movable shafts rotatably connected to the top surface of the smoke exhaust pipe, the shaft body of the movable shaft being fixedly connected to two movable blades, the lower end of the shaft body of the movable shaft passing through the smoke exhaust pipe and being fixedly connected to two receiving rods, and the ends of the lower surfaces of the receiving rods away from the movable shafts are both rotatably connected to connecting rods;

[0007] The outer wall of the smoke exhaust pipe is provided with a cooling assembly, which includes a circulation pipe fixedly connected to the front end of the outer wall of the smoke exhaust pipe, a connecting pipe fixedly connected to the lower end of the circulation pipe body, and the cooling assembly also includes a cooling cavity opened inside the movable shaft and the movable blades, a plurality of flow pipes fixedly connected to the inner walls on both sides of the circulation pipe, and an end of the flow pipe body away from the circulation pipe passes through the smoke exhaust pipe and is fixedly connected to an atomizing nozzle;

[0008] Through the above technical solution, the design of the multi-leaf fire smoke exhaust valve has advantages in efficient smoke exhaust, cooling, sealing, protection, cooling, etc., making it a very practical and reliable fire protection facility.

[0009] Furthermore, the transmission end of the actuator is fixedly connected to the middle movable shaft, a wrench is provided on one side of the upper surface of the exhaust pipe, and the upper end of the movable shaft on one side passes through the exhaust pipe and is fixedly connected to the wrench;

[0010] Through the above technical solution, the actuator is connected to the movable shaft, and the opening and closing of the blades can be adjusted through the automatic control system to achieve precise smoke exhaust control. When a fire occurs, the system can automatically start and adjust the position of the blades to effectively remove smoke and protect the safety of people in the building. The manual wrench also allows staff to manually control the opening and closing of the smoke exhaust valve in an emergency or when the automatic system fails.

[0011] Furthermore, a protective frame is fixedly connected to the edge of the lower surface of the smoke exhaust pipe;

[0012] Through the above technical solution, the protective frame is fixedly connected to the edge of the lower surface of the smoke exhaust pipe, thereby effectively preventing other external objects from damaging the internal structure.

[0013] Furthermore, one end of the communicating pipe away from the circulation pipe is rotatably connected to the lower surface of the movable shaft;

[0014] Through the above technical solution, the end of the connecting pipe away from the circulation pipe is rotatably connected to the lower surface of the movable shaft, so that the water source can be better transported to the inside of the movable shaft and the movable blades.

[0015] Furthermore, a sealing gasket is fixedly connected to the front end outer wall of the movable blade on one side of the movable shaft;

[0016] Through the above technical solution, the front end outer wall of the movable blade on one side of the movable shaft is fixedly connected with a sealing gasket, so that the movable blade and the sealing gasket are fitted together, which can better improve the overall sealing performance.

[0017] Furthermore, a water inlet valve is fixedly connected to the outer wall of one side of the circulation pipe;

[0018] Through the above technical solution, a water inlet valve is fixedly connected to the outer wall of one side of the circulation pipe, so that the entry of water source can be better controlled.

[0019] The utility model has the following beneficial effects:

[0020] 1. The utility model proposes a multi-leaf fire smoke exhaust valve. Compared with the existing smoke exhaust valve, the smoke exhaust valve drives the middle movable shaft to rotate through the blade assembly provided by the actuator, so that the middle movable shaft drives the connecting rod to move through the receiving rod at the lower end, and then drives the multiple receiving rods on both sides to rotate through the connecting rod, so that the receiving rods respectively drive the movable shaft to rotate, so that the movable shaft drives the movable blades to rotate, thereby avoiding the problem that the traditional use of belts as a transmission mechanism may cause the valve to respond slowly in the case of overheating, and may open in time, affecting the smoke emission efficiency.

[0021] 2. The utility model proposes a multi-leaf fire smoke exhaust valve. Compared with the existing smoke exhaust valve, the smoke exhaust valve is equipped with a cooling component. By connecting the water inlet valve to the fire water pipe, when in use, the water source is allowed to enter the interior of the circulation pipe by opening the water inlet valve, and then part of the water source inside the circulation pipe is atomized and sprayed out from the atomizing nozzle, thereby cooling the flowing smoke. At the same time, part of the water source enters the interior of the movable blades to cool the movable blades, thereby avoiding the problem of the movable blades being unable to open or close effectively due to heat expansion. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is an axonometric drawing of a multi-leaf fire smoke exhaust valve proposed in the utility model;

[0023] Figure 2 This is a structural diagram of a multi-leaf fire smoke exhaust valve proposed by the utility model;

[0024] Figure 3 This is a bottom view of a multi-leaf fire smoke exhaust valve proposed by the utility model;

[0025] Figure 4 This is a schematic structural diagram of the movable blades and other components of a multi-leaf fire smoke exhaust valve proposed in the present invention;

[0026] Figure 5 This is a top-sectional view of a movable shaft in a multi-leaf fire smoke exhaust valve proposed in the present invention;

[0027] Figure 6 The present invention provides a schematic structural diagram of a cooling mechanism in a multi-leaf fire smoke exhaust valve.

[0028] Legend:

[0029] 1. Exhaust pipe;

[0030] 2. Blade assembly; 201. Movable shaft; 202. Movable blade; 203. Connecting rod; 204. Connecting rod;

[0031] 3. Actuator; 4. Wrench;

[0032] 5. Cooling assembly; 501. Circulation pipe; 502. Connecting pipe; 503. Atomizing nozzle; 504. Water inlet valve; 505. Cooling chamber; 506. Flow pipe;

[0033] 6. Protective frame; 7. Sealing gasket. DETAILED DESCRIPTION

[0034] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0035] Reference Figure 1-6 , an embodiment provided by the utility model:

[0036] A multi-leaf fire smoke exhaust valve includes a smoke exhaust pipe 1, an actuator 3 is fixedly connected to the middle of the upper surface of the smoke exhaust pipe 1, a blade assembly 2 is provided inside the smoke exhaust pipe 1, and the blade assembly 2 includes multiple movable shafts 201 rotatably connected to the top surface of the smoke exhaust pipe 1. The shaft body of the movable shaft 201 is fixedly connected to two movable blades 202. The lower end of the shaft body of the movable shaft 201 passes through the smoke exhaust pipe 1 and is fixedly connected to two receiving rods 203. The lower end of the receiving rod 203 away from the movable shaft 201 is rotatably connected to a connecting rod 204.

[0037] The outer wall of the smoke exhaust pipe 1 is provided with a cooling assembly 5, which includes a circulation pipe 501 fixedly connected to the front end of the outer wall of the smoke exhaust pipe 1, a connecting pipe 502 fixedly connected to the lower end of the circulation pipe 501, and a cooling chamber 505 opened inside the movable shaft 201 and the movable blade 202. A plurality of flow pipes 506 are fixedly connected to the inner walls on both sides of the circulation pipe 501, and the end of the flow pipe 506 away from the circulation pipe 501 passes through the smoke exhaust pipe 1 and is fixedly connected to an atomizing nozzle 503;

[0038] The design of this multi-leaf fire smoke exhaust valve has advantages in efficient smoke exhaust, temperature reduction, sealing, protection, cooling, etc., making it a very practical and reliable fire protection facility.

[0039] The transmission end of the actuator 3 is fixedly connected to the middle movable shaft 201, and a wrench 4 is provided on one side of the upper surface of the smoke exhaust pipe 1. The upper end of the movable shaft 201 on one side passes through the smoke exhaust pipe 1 and is fixedly connected to the wrench 4. The actuator 3 is connected to the movable shaft 201, and the switch of the blade can be adjusted through the automatic control system to achieve precise smoke exhaust control. When a fire occurs, the system can automatically start and adjust the position of the blade to effectively eliminate smoke and protect the safety of people in the building. The manual wrench 4 is also equipped so that in an emergency or when the automatic system fails, the staff can manually control the opening and closing of the smoke exhaust valve.

[0040] A protective frame 6 is fixedly connected to the edge of the lower surface of the smoke exhaust pipe 1. By fixing the protective frame 6 on the edge of the lower surface of the smoke exhaust pipe 1, it is possible to effectively prevent other external objects from damaging the internal structure. The end of the connecting pipe 502 away from the circulation pipe 501 is rotatably connected to the lower surface of the movable shaft 201. The end of the connecting pipe 502 away from the circulation pipe 501 is rotatably connected to the lower surface of the movable shaft 201, so that the water source can be better transported to the interior of the movable shaft 201 and the movable blade 202.

[0041] The front end outer wall of the movable blade 202 on one side of the movable shaft 201 is fixedly connected with the sealing gasket 7, and the front end outer wall of the movable blade 202 on one side of the movable shaft 201 is fixedly connected with the sealing gasket 7, so that the movable blade 202 and the sealing gasket 7 are fitted together, which can better improve the overall sealing performance. The outer wall of one side of the circulation pipe 501 is fixedly connected with the water inlet valve 504, and the outer wall of one side of the circulation pipe 501 is fixedly connected with the water inlet valve 504, so that the entry of water source can be better controlled.

[0042] Working principle: When in use, the smoke exhaust valve is installed on the pipe. When the smoke needs to be discharged, the actuator 3 drives the middle movable shaft 201 to rotate, so that the middle movable shaft 201 drives the connecting rod 204 to move through the receiving rod 203 at the lower end, and then drives the multiple receiving rods 203 on both sides to rotate through the connecting rod 204, so that the receiving rods 203 drive the movable shaft 201 to rotate, so that the movable shaft 201 drives the movable blades 202 to rotate, so that the smoke flows. At the same time, the water inlet valve 504 is opened to allow water to enter the circulation pipe 501. , and then part of the water source inside the circulation pipe 501 is atomized and sprayed out from the atomizing nozzle 503, so that the atomized water source and the smoke are integrated to reduce the temperature of the smoke, thereby reducing the temperature of the smoke exhaust pipe 1. At the same time, part of the water source enters the cooling chamber 505 in the movable blade 202 to cool the movable blade 202. When the actuator 3 is damaged, the staff can use a tool to rotate the wrench 4, so that the wrench 4 drives the movable shaft 201 on one side to rotate, thereby driving the remaining movable blades 202 to rotate through the receiving rod 203 and the connecting rod 204 to open or close them.

[0043] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A multi-leaf fire smoke exhaust valve, comprising a smoke exhaust pipe (1), characterized in that: An actuator (3) is fixedly connected to the middle of the upper surface of the smoke exhaust pipe (1), and a blade assembly (2) is provided inside the smoke exhaust pipe (1). The blade assembly (2) includes a plurality of movable shafts (201) rotatably connected to the top surface of the smoke exhaust pipe (1), and the shaft body of the movable shaft (201) is fixedly connected to two movable blades (202). The lower end of the shaft body of the movable shaft (201) passes through the smoke exhaust pipe (1) and is fixedly connected to two receiving rods (203). The ends of the lower surfaces of the receiving rods (203) away from the movable shaft (201) are both rotatably connected to connecting rods (204). The outer wall of the smoke exhaust pipe (1) is provided with a cooling assembly (5), the cooling assembly (5) comprising a circulation pipe (501) fixedly connected to the front end of the outer wall of the smoke exhaust pipe (1), the lower end of the pipe body of the circulation pipe (501) being fixedly connected to a connecting pipe (502), the cooling assembly (5) further comprising a cooling cavity (505) opened inside the movable shaft (201) and the movable blade (202), a plurality of circulation pipes (506) being fixedly connected to the inner walls on both sides of the circulation pipe (501), the end of the pipe body of the circulation pipe (506) away from the circulation pipe (501) passing through the smoke exhaust pipe (1) and being fixedly connected to an atomizing nozzle (503).

2. A multi-leaf fire smoke exhaust valve according to claim 1, characterized in that: The transmission end of the actuator (3) is fixedly connected to the middle movable shaft (201), a wrench (4) is provided on one side of the upper surface of the exhaust pipe (1), and the upper end of the movable shaft (201) on one side passes through the exhaust pipe (1) and is fixedly connected to the wrench (4).

3. The multi-leaf fire smoke exhaust valve according to claim 1, characterized in that: A protective frame (6) is fixedly connected to the edge of the lower surface of the smoke exhaust pipe (1).

4. The multi-leaf fire smoke exhaust valve according to claim 1, characterized in that: One end of the communicating pipe (502) away from the circulation pipe (501) is rotatably connected to the lower surface of the movable shaft (201).

5. The multi-leaf fire smoke exhaust valve according to claim 1, characterized in that: The front end outer walls of the movable blades (202) on one side of the movable shaft (201) are fixedly connected with sealing pads (7).

6. The multi-leaf fire smoke exhaust valve according to claim 1, characterized in that: A water inlet valve (504) is fixedly connected to an outer wall of one side of the circulation pipe (501).

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