Multi-blade fire-fighting smoke exhaust valve

Abstract

The utility model discloses a multi-blade fire-fighting smoke exhaust valve, which belongs to the field of smoke exhaust valves and comprises a valve body, an actuator is arranged on the top surface of the valve body, a plurality of blades controlled by the actuator to be opened and closed are transversely arranged in the valve body side by side, and an arranged protection mechanism is matched with the multi-blade fire-fighting smoke exhaust valve for use. Before the valve body is used, the filter frame is installed at the front end of the valve body through a C-shaped handle, a positioning rod is inserted into a positioning hole, an insertion strip is inserted into an insertion opening, and a clamping head is clamped into a clamping groove under the elastic acting force of a compression spring, so that the purpose that the filter frame is conveniently and rapidly clamped and installed at the front end of the valve body for use is achieved; the multi-blade fire-fighting smoke exhaust valve is simple in structure and is matched with the filter screen mounted in the upper filter frame for use, so that impurities carried in smoke can be intercepted and filtered, the impurities are prevented from being accumulated in the valve body or clamped among the blades to influence opening and closing of the multi-blade fire-fighting smoke exhaust valve, and normal and safe use of the multi-blade fire-fighting smoke exhaust valve is ensured.

Description

Technical Field

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

[0002] Multi-leaf fire smoke exhaust damper is an important device in the fire protection system. It is usually installed on the pipe or smoke exhaust port of the mechanical smoke exhaust system. It is kept in a normally closed state and meets the air leakage requirements. When a fire occurs, it can be opened manually or electrically to exhaust smoke. When the smoke temperature in the smoke exhaust pipe reaches the set value (such as 280℃), it will automatically close and output a signal to link other fire protection equipment, thereby effectively controlling the fire and smoke exhaust, ensuring personnel safety and reducing building losses.

[0003] In the prior art, a Chinese utility model patent with publication number "CN220540401U" and patent name "A Multi-leaf Fire Smoke Exhaust Valve" discloses a smoke exhaust valve. The patent records technical solutions such as "by providing a stepped shape with a higher inner side and a lower outer side on the baffle, when the smoke exhaust valve needs to be closed to prevent the spread of fire, the baffle leaf assembly is closed so that the protrusion is buckled into the inner slide groove of the adjacent baffle leaf to form a fixation, and a rubber layer is fixedly provided on the notch groove surface of the front baffle leaf, and the bottom surface of the notch groove is in contact with the corresponding surface of the rubber layer, thereby greatly improving the sealing and stability when closed, effectively preventing the internal smoke from opening the smoke exhaust valve, and further improving its safety performance";

[0004] However, in actual use, due to the lack of protective measures on the multi-leaf fire smoke exhaust valve, impurities carried in the smoke during the exhaust process will enter the interior of the valve body and accumulate or get stuck between the blades, which will not only hinder the opening operation of the multi-leaf fire smoke exhaust valve when in use, but also make it difficult to completely seal and close the multi-leaf fire smoke exhaust valve when not in use, thereby reducing the safety of the multi-leaf fire smoke exhaust valve and affecting the normal use of the multi-leaf fire smoke exhaust valve;

[0005] Therefore, in order to solve the above technical solution, the utility model proposes a multi-leaf fire smoke exhaust valve. Utility Model Content

[0006] The main purpose of the utility model is to provide a multi-leaf fire 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 multi-leaf fire smoke exhaust valve comprises a valve body, the top surface of the valve body is provided with an actuator, and a plurality of blades whose opening and closing are controlled by the actuator are arranged in a horizontal side-by-side manner inside the valve body, a protective mechanism is provided at the front end of the valve body, and the protective mechanism comprises an inner frame, an insert, a compression spring, a clamping joint, a filter frame and a filter screen, the front end of the inner wall of the valve body is fixedly connected to the inner frame, and the front end wall of the inner frame is fixedly connected to a symmetrical insert, the two end walls of the insert are respectively fixedly connected to compression springs, and the outer end of the compression spring is fixedly connected to the clamping joint, the filter frame is fixedly connected to the insert through a socket opened on the front end wall, and the filter screen is fixedly connected to the inside of the filter frame.

[0009] Preferably, an inner frame is fixedly mounted on the front end portion of the inner wall of the valve body, and positioning rods are respectively fixedly mounted on the four corner ends of the front end portion of the inner frame.

[0010] Preferably, a group of vertically symmetrical insertion strips are fixedly installed on the front end wall of the inner frame, and spring grooves are respectively provided on the left and right end walls of the insertion strips. A limiting ring is fixedly installed in the groove opening of the spring groove, and a compression spring is fixedly installed at the bottom of the spring groove. A clamping joint passing through the limiting ring is fixedly installed on the outer end of the compression spring.

[0011] Preferably, positioning holes corresponding to the positioning rods are respectively formed at the four corner ends of the front end wall of the filter frame.

[0012] Preferably, a filter screen is fixedly mounted inside the filter frame, and a group of bilaterally symmetrical C-shaped handles are fixedly mounted on the front end wall of the filter frame.

[0013] Preferably, a group of vertically symmetrical sockets corresponding to the inserting strips are further provided on the front end wall of the filter frame, and card slots corresponding to the card connectors are respectively provided on the left and right side walls inside the sockets.

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

[0015] The filter screen installed in the filter frame can intercept and filter impurities carried in the smoke, preventing impurities from accumulating in the valve body or getting stuck between the blades and affecting the opening and closing of the multi-leaf fire smoke exhaust valve, thereby ensuring the normal and safe use of the multi-leaf fire smoke exhaust valve. At the same time, the filter screen can be easily disassembled for cleaning later. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 This is a schematic structural diagram of the protection mechanism of the present utility model;

[0018] Figure 3 For the utility model Figure 2 A schematic diagram of the structure cutaway at point A;

[0019] Figure 4 This is a schematic diagram of the overall structure of the filter frame of the present invention;

[0020] Figure 5 For the utility model Figure 4 A magnified schematic diagram of the structure at point B.

[0021] In the figure: 1. Valve body; 2. Actuator; 3. Blade; 4. Protective mechanism; 5. Inner frame; 6. Positioning rod; 7. Insert strip; 8. Spring groove; 9. Limiting ring; 10. Compression spring; 11. Card connector; 12. Filter frame; 13. Filter screen; 14. C-shaped handle; 15. Positioning hole; 16. Socket; 17. Card slot. 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 multi-leaf fire smoke exhaust valve includes a valve body 1, an actuator 2 is provided on the top surface of the valve body 1, and a plurality of blades 3 whose opening and closing are controlled by the actuator 2 are arranged in a horizontal side-by-side manner inside the valve body 1, and a protective mechanism 4 is provided at the front end of the valve body 1, and the protective mechanism 4 includes an inner frame 5, an insert 7, a compression spring 10, a clamping joint 11, a filter frame 12 and a filter screen 13. The front end of the inner wall of the valve body 1 is fixedly connected to the inner frame 5, and the front end wall of the inner frame 5 is fixedly connected to the symmetrical insert 7, and the compression springs 10 are respectively fixedly connected to the inner ends of the insert 7, and the clamping joint 11 is fixedly connected to the outer end of the compression spring 10, the filter frame 12 is fixedly connected to the insert 7 through the socket 16 opened on the front end wall, and the filter screen 13 is fixedly connected to the inside of the filter frame 12.

[0024] like Figure 2 As shown, the front end of the inner wall of the valve body 1 is fixedly mounted with an inner frame 5, and the four corner ends of the front end wall of the inner frame 5 are respectively fixedly mounted with positioning rods 6. The positioning rods 6 installed on the front end inner frame 5 of the valve body 1 can play a role in positioning and mounting the filter frame 12.

[0025] like Figure 2 and Figure 3 As shown, a group of symmetrical inserting strips 7 are fixedly installed on the front end wall of the inner frame 5, and spring grooves 8 are respectively opened on the left and right end walls of the inserting strip 7. A limit ring 9 is fixedly installed in the groove of the spring groove 8, and a compression spring 10 is fixedly installed at the bottom of the spring groove 8. A clamping joint 11 that passes through the limit ring 9 is fixedly installed on the outer end of the compression spring 10. When the filter frame 12 is installed to the front end of the valve body 1, the inserting strip 7 will be inserted into the socket 16, and the protruding clamping joints 11 on both sides of the inserting strip 7 will enter the spring groove 8 through the limit ring 9 after being squeezed, and force the compression spring 10 to retract. After the inserting strip 7 is fully inserted into the inserting strip 7, the clamping joint 11 loses the squeezing force and is pushed outward by the elastic recovery force of the compression spring 10. After passing through the limit ring 9, it enters the clamping groove 17, thereby achieving the purpose of facilitating the clamping and installation of the protective mechanism 4 at the front end of the valve body 1 for use, and also facilitating the subsequent disassembly of the filter frame 12 to clean the filter screen 13;

[0026] like Figure 4 As shown, the four corner ends of the front end wall of the filter frame 12 are respectively provided with positioning holes 15 corresponding to the positioning rods 6. When the positioning rods 6 are inserted into the positioning holes 15, the filter frame 12 can be positioned and installed at the front end of the valve body 1 through the positioning holes 15.

[0027] like Figure 4 As shown, a filter screen 13 is fixedly installed inside the filter frame 12, and a set of bilaterally symmetrical C-shaped handles 14 are fixedly installed on the front end wall of the filter frame 12. The filter frame 12 can be manually installed or removed through the C-shaped handles 14. The filter screen 13 installed in the filter frame 12 is used to intercept and filter impurities carried in the smoke, preventing impurities from entering the valve body 1 and accumulating or getting stuck between the blades 3, thereby affecting the normal closing and opening of the multi-leaf fire smoke exhaust valve.

[0028] like Figure 4 and Figure 5 As shown, a set of vertically symmetrical sockets 16 corresponding to the insertion strips 7 are further provided on the front end wall of the filter frame 12, and a snap-in groove 17 corresponding to the snap connector 11 is respectively provided on the left and right side walls inside the sockets 16. After the insertion strips 7 are inserted into the sockets 16, the snap connector 11 can be snapped into the snap-in groove 17 to complete the installation of the filter frame 12.

[0029] It should be noted that the present invention is a multi-leaf fire smoke exhaust valve. In order to prevent the impurities carried in the smoke from entering the valve body 1 during the smoke exhaust process and accumulating or getting stuck between the blades 3, thereby affecting the opening or closing of the multi-leaf fire smoke exhaust valve, a protective mechanism 4 needs to be installed at the front end of the multi-leaf fire smoke exhaust valve for use. The filter frame 12 is manually lifted through the C-shaped handle 14, and the positioning holes 15 opened at the four corner ends of the front end wall of the filter frame 12 and the positioning rods 6 installed at the four corner ends of the front end wall of the inner frame 5 at the front end of the inner wall of the valve body 1 are used to adjust the filter frame 12 to the desired position. The filter frame 12 is positioned and installed at the front end of the valve body 1. During the installation process, the positioning rod 6 is inserted into the positioning hole 15. In the process of inserting the positioning rod 6 into the positioning hole 15, the upper and lower symmetrical insertion strips 7 installed on the front end wall of the inner frame 5 will be inserted into the upper and lower symmetrical sockets 16 opened on the front end wall of the filter frame 12. In the process of the insertion strip 7 entering the socket 16, the protruding card joints 11 on the left and right ends of the insertion strip 7 will be squeezed by the filter frame 12, and after being squeezed, pass through the limit ring 9 and enter the spring groove 8 opened on the left and right end walls of the insertion strip 7, and force the bottom of the spring groove 8 to The installed compression spring 10 is retracted until the insertion strip 7 is fully inserted into the socket 16, and the positioning rod 6 is also inserted into the positioning hole 15. At this time, after the clamping joint 11 loses its extrusion force, the compression spring 10 will elastically recover and stretch, and push the clamping joint 11 outward through the limit ring 9 to enter the clamping groove 17 opened on the left and right side walls of the inner side of the socket 16, so that the filter frame 12 can be quickly clamped and fixed to the front end of the valve body 1 for use. When the actuator 2 on the top surface of the valve body 1 controls the blade 3 to rotate open to exhaust smoke, In the process, the smoke will pass through the filter frame 12 installed at the front end of the valve body 1 before entering the valve body 1, and the filter screen 13 installed in the filter frame 12 will intercept and filter the impurities carried in the smoke to prevent the impurities from accumulating in the valve body 1 or getting stuck between the blades 3 and affecting the opening and closing of the multi-leaf fire smoke exhaust valve, thereby ensuring the normal and safe use of the multi-leaf fire smoke exhaust valve. When it is necessary to clean the filter screen 13 to ensure the interception and filtering effect, the filter frame 12 can be manually removed from the front end of the valve body 1 by using the C-shaped handle 14 to facilitate cleaning of the filter screen 13.

[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 multi-leaf fire smoke exhaust valve, comprising a valve body (1), an actuator (2) provided on the top surface of the valve body (1), and a plurality of blades (3) controlled to open and close by the actuator (2) provided in a transversely arranged manner inside the valve body (1), characterized in that: The front end of the valve body (1) is provided with a protective mechanism (4), and the protective mechanism (4) comprises an inner frame (5), an insert (7), a compression spring (10), a clamping joint (11), a filter frame (12) and a filter screen (13). The front end of the inner wall of the valve body (1) is fixedly connected to the inner frame (5), and the front end wall of the inner frame (5) is fixedly connected to a symmetrical insert (7). The compression springs (10) are fixedly connected to the inner side walls of the insert (7) respectively, and the outer end of the compression spring (10) is fixedly connected to the clamping joint (11). The filter frame (12) is fixedly connected to the insert (7) through a socket (16) provided on the front end wall, and the filter screen (13) is fixedly connected to the inside of the filter frame (12).

2. A multi-leaf fire smoke exhaust valve according to claim 1, characterized in that: An inner frame (5) is fixedly mounted on the front end portion of the inner wall of the valve body (1), and positioning rods (6) are respectively fixedly mounted on the four corner ends of the front end portion of the inner frame (5).

3. A multi-leaf fire smoke exhaust valve according to claim 2, characterized in that: A group of vertically symmetrical inserting strips (7) are fixedly mounted on the front end wall of the inner frame (5), and spring grooves (8) are respectively provided on the left and right end walls of the inserting strips (7). A limiting ring (9) is fixedly mounted in the groove opening of the spring groove (8), and a compression spring (10) is fixedly mounted at the groove bottom of the spring groove (8). A clamping joint (11) passing through the limiting ring (9) is fixedly mounted on the outer end of the compression spring (10).

4. The multi-leaf fire smoke exhaust valve according to claim 3, characterized in that: Positioning holes (15) corresponding to the positioning rods (6) are respectively provided at the four corner ends of the front end wall of the filter frame (12).

5. The multi-leaf fire smoke exhaust valve according to claim 4, characterized in that: A filter screen (13) is fixedly mounted inside the filter frame (12), and a group of bilaterally symmetrical C-shaped handles (14) are fixedly mounted on the front end wall of the filter frame (12).

6. The multi-leaf fire smoke exhaust valve according to claim 5, characterized in that: A group of symmetrical sockets (16) corresponding to the inserting strips (7) are also provided on the front end wall of the filter frame (12), and a card slot (17) corresponding to the card connector (11) is respectively provided on the left and right side walls inside the socket (16).

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