Efficient smoke exhaust type smoke exhaust valve

Abstract

The utility model discloses an efficient smoke exhaust type smoke exhaust valve, which belongs to the field of smoke exhaust valves, and comprises a valve body, a smoke exhaust mechanism is arranged in the valve body, and the smoke exhaust mechanism comprises a mechanism shell, a blade, a worm gear, a connecting rod, a worm and a driving motor. When the smoke sensor detects that the amount of smoke entering the valve body through the smoke exhaust pipe reaches a preset value, an electric signal is transmitted to the controller, the controller controls and starts the driving motor, the driving motor drives the output end to drive the connecting rod to rotate through the rotating rod, and the connecting rod drives the worm to rotate. The worm drives the worm wheel to rotate under the meshing effect, the worm wheel drives the blades to rotate through the rotating shaft, the multiple blades are turned over and opened synchronously in the valve body, smoke is exhausted through the opened gaps between the blades, and therefore the smoke exhaust valve has the smoke induction and automatic smoke exhaust functions, workers do not need to open or close the smoke exhaust valve, and the working efficiency is improved. And the smoke exhaust efficiency of the smoke exhaust valve is improved.

Description

Technical Field

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

[0002] The smoke exhaust valve is a device installed at the end of each branch pipe (smoke intake) of the mechanical smoke exhaust system. It is usually closed and meets the air leakage requirements. It can be opened manually or electrically in case of fire or when smoke exhaust is required. It is used to control and regulate smoke emissions in the building to ensure the safe evacuation of personnel and indoor air quality.

[0003] In the prior art, a Chinese utility model patent with publication number "CN216343955U" and titled "A High-Efficiency Smoke Exhaust Valve" discloses a smoke exhaust valve. The patent describes technical solutions such as "through the cooperation of a transmission device and a drive mechanism, multiple sets of blade shafts are simultaneously turned. The operator only needs to operate the drive hand wheel to complete the turning of the blades in the smoke exhaust valve. Compared with the conventional operation method in which the operator turns the blade shafts one by one, the blade turning efficiency is greatly improved."

[0004] However, in actual use, the smoke exhaust valve requires a worker to walk to the smoke exhaust valve and manually operate the driving hand wheel to synchronously flip the blades to achieve the smoke exhaust operation, which makes the operation time-consuming and labor-intensive. The smoke exhaust valve cannot achieve automatic smoke exhaust operation, thereby reducing the smoke exhaust efficiency of the smoke exhaust valve. In addition, the valve needs to be manually closed after the smoke is exhausted. After closing, gaps will appear between the blades of the valve, thereby reducing the sealing effect of the smoke exhaust valve.

[0005] Therefore, in order to solve the above technical problems, the utility model proposes a high-efficiency smoke exhaust valve. Utility Model Content

[0006] The main purpose of the utility model is to provide a high-efficiency smoke exhaust valve, which can effectively solve the problems in the background technology.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] A high-efficiency smoke exhaust valve comprises a valve body, wherein a smoke exhaust mechanism is provided inside the valve body, and the smoke exhaust mechanism comprises a mechanism housing, blades, a worm gear, a connecting rod, a worm and a driving motor, wherein the mechanism housing is fixedly connected to the top surface of the valve body, and a plurality of blades are movably connected to the inside of the valve body in a transverse side-by-side manner through rotating shafts at the upper and lower ends, the worm gear is fixedly connected to the top end of the upper rotating shaft, the connecting rod is movably connected to the inside of the mechanism housing through rotating rods at both ends, and a worm meshing with the worm gear is fixedly connected between the connecting rods, the driving motor is fixedly connected to the side wall of the mechanism housing, and the output end of the driving motor is connected to the side wall of the mechanism housing. The rotating rod is fixedly connected, and a sealing mechanism is also provided inside the valve body and behind the smoke exhaust mechanism, and the sealing mechanism includes a movable frame, a fixed bar, an electric push rod, a sealing frame and a sealing strip. The electric push rod is fixedly connected to the rear wall of the horizontal plate in the valve body, and the movable frame is movably connected to the valve body through sliders on both sides of the upper and lower ends, and a number of fixed bars are fixedly connected inside the movable frame. The movable frame is fixedly connected to the output end of the electric push rod through a connecting plate between one group of fixed bars, and the sealing frame is fixedly connected to the front end of the movable frame, and the sealing strip is fixedly connected to the front end of the fixed bar and is fixedly connected to the sealing frame.

[0009] Preferably, a plurality of mounting holes are provided on the top and bottom surfaces of the valve body in a horizontal array, and sealed bearings are fixedly installed in the mounting holes, a smoke sensor is fixedly installed at the front end of the upper left corner of the inner wall of the valve body, and a controller is fixedly installed on the right side wall of the valve body, and the smoke sensor and the controller are electrically connected, the mechanism housing is fixedly installed on the top surface of the valve body, and rotation holes are respectively provided on the left and right side walls of the mechanism housing.

[0010] Preferably, there are several blades, and the top and bottom surfaces of the blades are respectively fixedly installed with rotating shafts, the rotating shafts are fixedly installed with sealed bearings, and a worm gear is fixedly installed on the top of the upper rotating shaft, and the left and right ends of the connecting rod are respectively fixedly installed with rotating rods, and the rotating rods are movably installed in the rotating holes, and several worms that mesh with the worm gears are also fixedly installed between the connecting rods, and the drive motor is fixedly installed on the right side wall of the mechanism housing, and the output end of the drive motor is fixedly installed with the rotating rod at the right end, and the drive motor is also electrically connected to the controller.

[0011] Preferably, a group of bilaterally symmetrical sliding grooves are respectively provided on the bottom surface of the inner wall and the bottom surface of the valve body, and a horizontal plate is fixedly installed at the rear of the interior of the valve body.

[0012] Preferably, sliders are fixedly installed on the left and right sides of the top and bottom surfaces of the movable frame, and the sliders are movably installed in the slide grooves. A plurality of fixing bars are fixedly installed in the interior of the movable frame in a horizontal array, and a connecting plate is fixedly installed between a group of symmetrical fixing bars in the middle. The electric push rod is fixedly installed at the rear end of the horizontal plate, and the output end of the electric push rod is fixedly installed together with the connecting plate.

[0013] Preferably, the sealing frame is fixedly mounted on the front end wall of the movable frame, and a sealing strip corresponding to the fixing strip is fixedly mounted inside the sealing frame, and the sealing strip is fixedly mounted on the front end wall of the fixing strip.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] In the utility model, a smoke exhaust mechanism is provided. When the smoke sensor detects that the amount of smoke entering the valve body through the smoke exhaust pipe reaches a preset value, an electrical signal will be transmitted to the controller. The controller will control and start the drive motor. The drive motor will drive the output end to drive the connecting rod to rotate through the rotating rod. The connecting rod will drive the worm to rotate. The worm will drive the worm gear to rotate under the meshing action. The worm gear will drive the blades to rotate through the rotating shaft, so that multiple blades will flip and open synchronously in the valve body, and smoke will be discharged through the gaps opened between the blades, so that the smoke exhaust valve has the function of automatically exhausting smoke in response to smoke sensing. There is no need for staff to open or close the smoke exhaust valve, which improves the smoke exhaust efficiency of the smoke exhaust valve. At the same time, after the smoke exhaust mechanism is closed, the controller is used to open the electric push rod to drive the output end to push the movable frame through the connecting plate. After the movable frame moves in the valve body through the slider, it can be tightly attached to the inner wall of the blade and the valve body and the rear part of the gap formed between the blades through the sealing frame and the sealing strip, thereby improving the sealing performance of the smoke exhaust valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a rear view schematic diagram of the overall structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the overall structure of the valve body of the present utility model;

[0019] Figure 4 This is a schematic diagram of the overall structure of the smoke exhaust mechanism of the present invention;

[0020] Figure 5 This is a schematic diagram of the structural disassembly of the sealing mechanism of the present invention.

[0021] In the figure: 1. Valve body; 2. Smoke exhaust mechanism; 3. Sealing mechanism; 4. Mounting hole; 5. Sealing bearing; 6. Smoke sensor; 7. Controller; 8. Mechanism housing; 9. Rotating hole; 10. Slide groove; 11. Horizontal plate; 12. Blade; 13. Rotating shaft; 14. Worm gear; 15. Connecting rod; 16. Rotating rod; 17. Worm; 18. Driving motor; 19. Movable frame; 20. Slider; 21. Fixing strip; 22. Connecting plate; 23. Electric push rod; 24. Sealant frame; 25. Sealing strip. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] like Figure 1 - Figure 5 As shown, a high-efficiency smoke exhaust valve comprises a valve body 1, a smoke exhaust mechanism 2 is provided inside the valve body 1, and the smoke exhaust mechanism 2 comprises a mechanism housing 8, blades 12, a worm gear 14, a connecting rod 15, a worm 17 and a drive motor 18, the mechanism housing 8 is fixedly connected to the top surface of the valve body 1, and a plurality of blades 12 are movably connected to the inside of the valve body 1 in a horizontal side-by-side manner through the rotating shafts 13 at the upper and lower ends, the worm gear 14 is fixedly connected to the top of the upper rotating shaft 13, the connecting rod 15 is movably connected to the inside of the mechanism housing 8 through the rotating rods 16 at both ends, and a worm 17 meshing with the worm gear 14 is fixedly connected between the connecting rods 15, and the drive motor 18 is fixedly connected to the side wall of the mechanism housing 8, and the output end of the drive motor 18 is connected to the rotating shaft 16 at both ends. The rod 16 is fixedly connected, and a sealing mechanism 3 is also provided inside the valve body 1 and behind the smoke exhaust mechanism 2, and the sealing mechanism 3 includes a movable frame 19, a fixed strip 21, an electric push rod 23, a sealing frame 24 and a sealing strip 25. The electric push rod 23 is fixedly connected to the rear wall of the horizontal plate 11 in the valve body 1, and the movable frame 19 is movably connected to the valve body 1 through sliders 20 on both sides of the upper and lower ends, and a number of fixed strips 21 are fixedly connected to the inside of the movable frame 19. The movable frame 19 is fixedly connected to the output end of the electric push rod 23 through a connecting plate 22 between one group of fixed strips 21, and the sealing frame 24 is fixedly connected to the front end of the movable frame 19, and the sealing strip 25 is fixedly connected to the front end of the fixed strip 21 and is fixedly connected to the sealing frame 24.

[0024] like Figure 3As shown, a plurality of mounting holes 4 are provided on the top and bottom surfaces of the valve body 1 in a horizontal array, and sealed bearings 5 ​​are fixedly installed in the mounting holes 4. A smoke sensor 6 is fixedly installed on the front end of the upper left corner of the inner wall of the valve body 1, and a controller 7 is fixedly installed on the right side wall of the valve body 1. The smoke sensor 6 and the controller 7 are electrically connected. The mechanism housing 8 is fixedly installed on the top surface of the valve body 1, and rotation holes 9 are respectively provided on the left and right side walls of the mechanism housing 8. The sealed bearings 5 ​​installed in the mounting holes 4 are used to cooperate with the rotating shaft 13 to realize the rotation operation, and the smoke sensor 6 is used to detect whether smoke enters the interior of the valve body 1, and transmits the converted electrical signal to the controller 7 after the smoke amount reaches the preset value to be discharged. The mechanism housing 8 is used to cover and protect the transmission part of the smoke exhaust mechanism 2, and the rotation holes 9 provided on both sides are used to cooperate with the rotating rod 16 to realize the rotation operation;

[0025] like Figure 4 As shown, a plurality of blades 12 are provided, and the top and bottom surfaces of the blades 12 are respectively fixedly mounted with rotating shafts 13, the rotating shafts 13 and the sealed bearings 5 ​​are fixedly mounted together, and a worm gear 14 is fixedly mounted on the top of the upper rotating shaft 13, and the left and right ends of the connecting rod 15 are respectively fixedly mounted with rotating rods 16, and the rotating rod 16 is movably mounted in the rotating hole 9, and a plurality of worms 17 that mesh with the worm gear 14 are also fixedly mounted between the connecting rods 15, and the drive motor 18 is fixedly mounted on the right side wall of the mechanism housing 8, and the output end of the drive motor 18 is fixedly mounted with the rotating rod 16 at the right end, and the drive motor 18 is also electrically connected to the controller 7, and the controller 7 receives the smoke sensor 6 will control and turn on the drive motor 18, the drive motor 18 will drive the output end to drive the rotating rod 16 to rotate in the rotating hole 9, and the rotating rod 16 will drive the connecting rod 15 to rotate, and the connecting rod 15 will drive the several worms 17 installed therebetween to rotate, and the worm 17 will drive the worm gear 14 to rotate under the action of meshing, so that the worm gear 14 drives the rotating shaft 13 to rotate in the sealed bearing 5 and then drives the blades 12 to rotate, so that the several blades 12 in the valve body 1 can be turned over and opened synchronously, so that the smoke is discharged through the gaps formed between the blades 12, and the smoke exhaust mechanism 2 enables the smoke exhaust valve to have the function of automatically exhausting smoke by sensing smoke, without the need for manual opening and closing of the smoke exhaust valve, thereby improving the smoke exhaust efficiency of the smoke exhaust valve;

[0026] like Figure 3 As shown, a set of bilaterally symmetrical sliding grooves 10 are respectively provided on the bottom surface of the inner wall and the bottom surface of the valve body 1, and a horizontal plate 11 is fixedly installed at the rear of the inner part of the valve body 1. The sliding grooves 10 provided in the valve body 1 are used to cooperate with the slider 20 to achieve sliding, and the installed horizontal plate 11 is used to cooperate with the installation of the electric push rod 23;

[0027] like Figure 2 and Figure 5As shown, sliders 20 are fixedly installed on the top and left and right sides of the bottom surface of the movable frame 19, and the sliders 20 are movably installed in the slide groove 10. A plurality of fixing bars 21 are fixedly installed in the interior of the movable frame 19 in a horizontal array, and a connecting plate 22 is fixedly installed between a group of fixing bars 21 symmetrically in the middle. The electric push rod 23 is fixedly installed at the rear end of the horizontal plate 11, and the output end of the electric push rod 23 is fixedly installed with the connecting plate 22. After the smoke sensor 6 detects that there is no smoke in the valve body 1, the controller 7 will control the smoke exhaust mechanism 2 to close, and turn on the electric push rod 23 to drive the output end to push the connecting plate 22 to move the movable frame 19 forward. During the movement, the slider 20 will slide in the slide groove 10.

[0028] like Figure 2 and Figure 5 As shown, the sealing frame 24 is fixedly mounted on the front end wall of the movable frame 19, and a sealing strip 25 corresponding to the fixed strip 21 is fixedly mounted inside the sealing frame 24. The sealing strip 25 is fixedly mounted on the front end wall of the fixed strip 21. After the movable frame 19 moves, the sealing frame 24 and the sealing strip 25 installed at the front end of the movable frame 19 and the front end of the fixed strip 21 in the movable frame 19 are respectively pressed against the rear part of the gap formed between the blade 12 and the inner wall of the valve body 1 and the blades 12 and the blades 12, thereby improving the sealing performance of the smoke exhaust valve.

[0029] It should be noted that the present invention is a high-efficiency smoke exhaust valve. When the smoke sensor 6 installed in the valve body 1 detects that the smoke in the exhaust pipe enters the valve body 1 and reaches a preset value, the smoke sensor 6 will transmit an electrical signal to the controller 7. The controller 7 will control the electric push rod 23 to open so that the sealing mechanism 3 will no longer further seal the smoke exhaust valve, and the controller 7 will control and turn on the drive motor 18 installed on the right side wall of the mechanism housing 8. The drive motor 18 will drive the output end to drive the rotating rod 16 to open the left and right side walls of the mechanism housing 8. The rotating hole 9 rotates, and the rotating rod 16 will drive the connecting rod 15 to rotate, and the connecting rod 15 will drive several worms 17 installed therebetween to rotate, and the worm 17 will drive the corresponding worm gear 14 to rotate under the action of meshing, and the worm gear 14 will drive the rotating shaft 13 installed at the upper and lower ends of the blade 12 to rotate in the sealing bearing 5 installed in the mounting hole 4 opened on the bottom and top surfaces of the valve body 1, and the rotating shaft 13 will drive the blade 12 to rotate, so that the multiple blades 12 arranged horizontally and side by side in the valve body 1 are flipped to one side at the same time and opened, and the smoke will pass through the gap between the blades 12. The smoke exhaust valve has the function of automatically exhausting smoke by sensing smoke, and there is no need for staff to open or close the smoke exhaust valve, which improves the smoke exhaust efficiency of the smoke exhaust valve. The structure of the worm gear 14 and the worm 17 enables the blade 12 to have a self-locking function after opening, preventing the blade 12 from being reopened by smoke in the closed state, further improving the safety and stability of the valve body 1 when in use. After the smoke sensor 6 detects that there is no smoke in the valve body 1, the controller 7 will control the smoke exhaust mechanism 2 to close and stop exhausting smoke. At the same time, the controller 7 will control and open the horizontal valve 12 installed in the valve body 1 again. The electric push rod 23 on the rear wall of the plate 11 will drive the output end to push the movable frame 19 forward through the connecting plate 22. The sliders 20 installed on the left and right sides of the top and bottom surfaces of the movable frame 19 will slide in the slide grooves 10 opened on both sides of the top and bottom surfaces of the valve body 1 until the front end of the movable frame 19 and the sealing frame 24 and the sealing strip 25 installed on the front end of the fixed strip 21 in the movable frame 19 are respectively pressed against the rear part of the gap formed between the blade 12 and the inner wall of the valve body 1 and the blade 12 and the blade 12, thereby improving the sealing performance of the smoke exhaust valve.

[0030] The foregoing description is merely 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, various improvements may be made to the present invention and its components may be replaced with equivalents, or some of its technical features may be replaced with equivalents without departing from the scope of the present invention. Anything within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high-efficiency smoke exhaust valve, comprising a valve body (1), characterized in that: The valve body (1) is provided with a smoke exhaust mechanism (2) inside, and the smoke exhaust mechanism (2) includes a mechanism housing (8), blades (12), a worm gear (14), a connecting rod (15), a worm (17) and a driving motor (18). The mechanism housing (8) is fixedly connected to the top surface of the valve body (1), and a plurality of blades (12) are movably connected to the inside of the valve body (1) in a transverse side-by-side manner through the rotating shafts (13) at the upper and lower ends respectively. The worm gear (14) is fixedly connected to the top end of the upper rotating shaft (13). The connecting rod (15) is movably connected to the inside of the mechanism housing (8) through the rotating rods (16) at both ends. A worm (17) meshing with the worm gear (14) is also fixedly connected between the connecting rods (15). The driving motor (18) is fixedly connected to the side wall of the mechanism housing (8), and the output end of the driving motor (18) is fixedly connected to the rotating rod (16). A sealing mechanism (3) is provided inside the valve body (1) and behind the smoke exhaust mechanism (2). The sealing mechanism (3) includes a movable frame (19), a fixed bar (21), an electric push rod (23), a sealing rubber frame (24) and a sealing strip (25). The electric push rod (23) is fixedly connected to the rear wall of the inner transverse plate (11) of the valve body (1). The movable frame (19) is movably connected to the valve body (1) through sliders (20) on both sides of the upper and lower ends. A plurality of fixed bars (21) are fixedly connected inside the movable frame (19). The movable frame (19) is fixedly connected to the output end of the electric push rod (23) through a connecting plate (22) between one group of fixed bars (21). The sealing rubber frame (24) is fixedly connected to the front end of the movable frame (19). The sealing strip (25) is fixedly connected to the front end of the fixed bar (21) and fixedly connected to the sealing rubber frame (24).

2. The high-efficiency smoke exhaust valve according to claim 1, characterized in that: The top and bottom surfaces of the valve body (1) are provided with a plurality of mounting holes (4) in a transverse array, and a sealing bearing (5) is fixedly installed in the mounting hole (4), a smoke sensor (6) is fixedly installed at the front end of the upper left corner of the inner wall of the valve body (1), and a controller (7) is fixedly installed on the right side wall of the valve body (1), and the smoke sensor (6) and the controller (7) are electrically connected, the mechanism housing (8) is fixedly installed on the top surface of the valve body (1), and a rotation hole (9) is respectively provided on the left and right side walls of the mechanism housing (8).

3. The high-efficiency smoke exhaust valve according to claim 2, characterized in that: The blades (12) are provided with a plurality of blades, and the top and bottom surfaces of the blades (12) are respectively fixedly mounted with a rotating shaft (13), the rotating shaft (13) and the sealed bearing (5) are fixedly mounted together, and the top end of the upper rotating shaft (13) is fixedly mounted with a worm gear (14), the left and right ends of the connecting rod (15) are respectively fixedly mounted with a rotating rod (16), and the rotating rod (16) is movably mounted in the rotating hole (9), and a plurality of worms (17) that mesh with the worm gear (14) are also fixedly mounted between the connecting rods (15), the driving motor (18) is fixedly mounted on the right side wall of the mechanism housing (8), and the output end of the driving motor (18) is fixedly mounted with the rotating rod (16) at the right end, and the driving motor (18) is also electrically connected to the controller (7).

4. The high-efficiency smoke exhaust valve according to claim 3, characterized in that: The inner wall bottom surface and the bottom surface of the valve body (1) are respectively provided with a group of left-right symmetrical sliding grooves (10), and a horizontal plate (11) is also fixedly installed at the rear of the inner part of the valve body (1).

5. The high-efficiency smoke exhaust valve according to claim 4, characterized in that: Slide blocks (20) are fixedly installed on the left and right sides of the top and bottom surfaces of the movable frame (19), and the slide blocks (20) are movably installed in the slide grooves (10). A plurality of fixed bars (21) are fixedly installed in the interior of the movable frame (19) in a transverse array, and a connecting plate (22) is fixedly installed between a group of fixed bars (21) symmetrical in the middle. The electric push rod (23) is fixedly installed at the rear end of the transverse plate (11), and the output end of the electric push rod (23) is fixedly installed together with the connecting plate (22).

6. The high-efficiency smoke exhaust valve according to claim 5, characterized in that: The sealing frame (24) is fixedly mounted on the front end wall of the movable frame (19), and a sealing strip (25) corresponding to the fixed strip (21) is fixedly mounted inside the sealing frame (24), and the sealing strip (25) is fixedly mounted on the front end wall of the fixed strip (21).

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