Smoke-proof and fire-proof valve

Abstract

The smoke-proof and fire-proof valve comprises a valve body, valve leaves are arranged on the two sides of the interior of the valve body, an arc-shaped block is fixedly connected to one side of each valve leaf, a transmission shaft is connected to the interior of each arc-shaped block in a penetrating mode, and the bottom of each transmission shaft is embedded into the interior of the valve body. The top end of the transmission shaft extends out of the valve and is connected with the output end of a servo motor, an air cylinder is arranged at the position, located in the center above the valve, of one side of the servo motor, and the output end of the air cylinder is connected with a locking clamping block. The servo motor and the valve leaf are arranged on the two sides of the valve, meanwhile, the air cylinder can push the locking clamping block to move to abut against the valve leaf, and therefore the valve leaf can abut against the sealing ring tightly, the sealing effect of the valve leaf on the sealing ring is improved, the fastening bolt is arranged on the valve leaf, the fastening bolt is connected to the arc-shaped block, and therefore the sealing effect of the valve leaf on the sealing ring is improved. And when the valve leaf needs to be disassembled and maintained, the fastening bolt is taken down, and the valve leaf can be taken out, so that the valve leaf is conveniently maintained or replaced.

Description

Technical Field

[0001] The utility model relates to a smoke and fireproof damper, belonging to the technical field of smoke and fireproof dampers. Background Art

[0002] At present, ventilation facilities are indispensable in modern buildings. Since the air duct is an important component of the building ventilation equipment and connects the various rooms of the building, when a fire occurs, a large amount of thick smoke will gather inside the building. Therefore, smoke and fire dampers will be installed on the air duct to provide a certain degree of safety.

[0003] For example, CN218207998U discloses a smoke and fire damper, which is provided with a sealing strip, and a temperature detection module detects the temperature inside the smoke and fire damper. When the temperature exceeds a preset value, the control module controls the driving component to start, thereby driving the valve leaf to rotate and close the smoke and fire damper. At this time, the sealing strip abuts against the valve leaf, so that the sealing strip can block the gap between the valve leaf and the frame, thereby improving the sealing of the smoke and fire damper. However, since the width of the valve leaf is relatively wide and can only be closed on the frame by the servo motor on one side, the edge of the valve leaf away from the servo motor and the transmission shaft has a lower pressure on the sealing strip, thereby affecting the sealing of the valve leaf on the sealing strip, and the valve leaf is not easy to disassemble after use, which is inconvenient during inspection and maintenance. Utility Model Content

[0004] The purpose of the utility model is to provide a smoke and fire damper, by arranging a servo motor and a valve leaf on both sides of the valve, at the same time, the cylinder can push the locking block to move and abut on the valve leaf, so that the valve leaf can tightly abut on the sealing ring, thereby improving the sealing effect of the valve leaf on the sealing ring, by arranging a fastening bolt on the valve leaf, the fastening bolt is connected to the arc block, when the valve leaf needs to be disassembled and repaired, the fastening bolt can be removed to take out the valve leaf, thereby facilitating the maintenance or replacement of the valve leaf, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A smoke and fire damper comprises a valve, wherein valve leaves are arranged on both sides of the interior of the valve, an arc block is fixedly connected to one side of the valve leaf, a transmission shaft is connected through the interior of the arc block, the bottom of the transmission shaft is embedded in the interior of the valve, the top of the transmission shaft extends to the outside of the valve and is connected to the output end of a servo motor, a cylinder is arranged at the center above the valve on one side of the servo motor, a locking block is connected to the output end of the cylinder, a sealing ring is arranged around the interior of the valve, a rubber ring is arranged on one side of the sealing ring, and a temperature sensing element is arranged above the interior of the valve on one side adjacent to the sealing ring.

[0007] Furthermore, two valve leaves are provided inside the valve and are symmetrically arranged inside the valve, a connecting groove is provided on one side of the valve leaf, and the connecting grooves of the valve leaves on both sides are connected to each other, and rubber pads are provided on the connecting grooves.

[0008] Furthermore, a heat insulation board is provided inside the valve page, and the area of ​​the heat insulation board is the same as the area of ​​the valve page.

[0009] Furthermore, a fastening bolt is provided on one side of the valve leaf, a screw hole matching the fastening bolt is provided inside the arc block, and the fastening bolt passes through the inside of the valve leaf and is connected to the arc block.

[0010] Furthermore, the locking block is embedded in the valve, the end of the locking block and the inner wall surface of the valve are on the same plane, and the locking block is slidably connected inside the valve.

[0011] Furthermore, one side of the locking block is provided with an oblique angle, and one side of the locking block located at the oblique angle abuts against the valve leaf. The cylinder and the locking block are provided with two and are symmetrically arranged on the upper and lower sides of the valve.

[0012] Furthermore, a controller is provided on one side above the valve, the output end of the temperature sensing element is electrically connected to the input end of the controller through a wire, and the output end of the controller is electrically connected to the servo motor and the output end of the cylinder through a wire.

[0013] The beneficial effects of the utility model are:

[0014] 1. By setting servo motors and valve leaves on both sides of the valve, the width of the valve leaf can be reduced. At the same time, after the valve leaf is closed, the cylinder can push the locking block to move and contact the valve leaf, so that the valve leaf can tightly contact the sealing ring, thereby improving the sealing effect of the valve leaf on the sealing ring.

[0015] 2. By arranging fastening bolts on the valve leaf, the fastening bolts are connected to the arc block. When the valve leaf needs to be disassembled for maintenance, the fastening bolts can be removed to remove the valve leaf, thereby facilitating maintenance or replacement of the valve leaf. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the specific embodiments of the present invention and do not constitute a limitation to the present invention.

[0017] Figure 1 This is a front view of a smoke and fire damper of the utility model;

[0018] Figure 2 This is a schematic diagram of the connection structure between the valve leaf and the arc block of a smoke and fire damper of the utility model;

[0019] Figure 3 This is a cross-sectional view of a valve leaf of a smoke and fire damper of the utility model;

[0020] Figure 4 This is a schematic diagram of the locking block structure of a smoke and fire damper of the utility model;

[0021] Figure 5 This utility model is a smoke and fire damper Figure 1 A partial enlarged view of the area at center A;

[0022] Numbers in the figure: 1. valve; 2. valve leaf; 3. arc block; 4. transmission shaft; 5. servo motor; 6. cylinder; 7. locking block; 8. sealing ring; 9. rubber ring; 10. temperature sensing element; 11. rubber pad; 12. heat insulation board; 13. fastening bolt; 14. controller. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example 1: Please refer to Figure 1-Figure 5 , the utility model provides a technical solution:

[0025] A smoke and fire damper comprises a valve 1, wherein valve leaves 2 are arranged on both sides of the interior of the valve 1, an arc block 3 is fixedly connected to one side of the valve leaf 2, a transmission shaft 4 is connected through the interior of the arc block 3, the bottom of the transmission shaft 4 is embedded in the interior of the valve 1, the top of the transmission shaft 4 extends to the outside of the valve 1 and is connected to the output end of a servo motor 5, a cylinder 6 is arranged at the center above the valve 1 on one side of the servo motor 5, a locking block 7 is connected to the output end of the cylinder 6, a sealing ring 8 is arranged around the interior of the valve 1, a rubber ring 9 is arranged on one side of the sealing ring 8, and a temperature sensing element 10 is arranged above the interior of the valve 1 on the adjacent side of the sealing ring 8.

[0026] Specifically, two valve leaves 2 are provided inside the valve 1 and are symmetrically arranged inside the valve 1. A connecting groove is provided on one side of the valve leaf 2, and the connecting grooves of the valve leaves 2 on both sides are connected to each other. A rubber pad 11 is provided on the connecting groove. The valve leaves 2 on both sides can be connected to each other through the connecting groove. The rubber pad 11 can increase the sealing performance when the valve leaves 2 on both sides are connected.

[0027] Specifically, a heat insulation board 12 is provided inside the valve leaf 2 , and the area of ​​the heat insulation board 12 is the same as that of the valve leaf 2 . The heat insulation board 12 can reduce heat transfer to the other side of the valve leaf 2 , thereby reducing heat transfer to the valve leaf 2 and the rubber ring 9 and rubber pad 11 .

[0028] Specifically, a fastening bolt 13 is provided on one side of the valve leaf 2, and a screw hole matching the fastening bolt 13 is provided inside the arc block 3. The fastening bolt 13 passes through the inside of the valve leaf 2 and is connected to the arc block 3. The locking block 7 is embedded in the inside of the valve 1. The end of the locking block 7 is on the same plane as the inner wall surface of the valve 1. The locking block 7 is slidably connected inside the valve 1. The fastening bolt 13 can connect the valve leaf 2 with the arc block 3, which makes it convenient to remove the valve leaf 2 from the fastening bolt 13. The locking block 7 can press the valve leaf 2 tightly on the sealing ring 8, thereby improving the sealing effect of the valve leaf 2 on the sealing ring 8.

[0029] Example 2: Please refer to Figure 1 , Figure 4 The difference between this embodiment and embodiment 1 is that: one side of the locking block 7 is provided with an oblique angle, and one side of the locking block 7 located at the oblique angle contacts the valve leaf 2, the cylinder 6 and the locking block 7 are provided with two and are symmetrically arranged on the upper and lower sides of the valve 1, and a controller 14 is provided on the upper side of the valve 1, the output end of the temperature sensing element 10 is electrically connected to the input end of the controller 14 through a wire, and the output end of the controller 14 is electrically connected to the servo motor 5 and the output end of the cylinder 6 through a wire, and the controller 14 can start the servo motor 5 and the cylinder 6 after receiving the information of the temperature sensing element 10, so that the valve leaf 2 can be closed.

[0030] Working principle of the utility model: during use, when the temperature sensing element 10 detects an abnormal increase in temperature, the controller 14 sends a command to start the servo motor 5 and the cylinder 6 after receiving the information of the temperature sensing element 10. When the servo motor 5 is running, it drives the transmission shaft 4 to rotate. When the transmission shaft 4 rotates, it can drive the arc block 3 and the valve leaf 2 to rotate and abut against the rubber ring 8. When the valve leaves 2 on both sides are connected to the rubber ring 8, the cylinder 6 runs to push the locking block 7 to abut against the valve leaf 2, so that the valve leaf 2 can be pressed against the sealing ring 8; when the valve leaf 2 needs to be disassembled for maintenance or replacement, the fastening bolt 13 can be removed from the valve leaf 2, and then the valve leaf 2 can be removed from the arc block 3.

[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0032] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A smoke and fire damper, comprising a valve (1), characterized in that: The valve (1) is provided with valve leaves (2) on both sides thereof, one side of the valve leaf (2) is fixedly connected with an arc block (3), the arc block (3) is connected with a transmission shaft (4) therein, the bottom of the transmission shaft (4) is embedded in the valve (1), the top of the transmission shaft (4) extends to the outside of the valve (1) and is connected to the output end of a servo motor (5), one side of the servo motor (5) is provided with a cylinder (6) at the center above the valve (1), the output end of the cylinder (6) is connected with a locking block (7), a sealing ring (8) is provided around the inside of the valve (1), a rubber ring (9) is provided on one side of the sealing ring (8), and a temperature sensing element (10) is provided on the adjacent side of the sealing ring (8) located above the inside of the valve (1).

2. A smoke and fire damper according to claim 1, characterized in that: Two valve leaves (2) are provided inside the valve (1) and are symmetrically arranged inside the valve (1); a connecting groove is provided on one side of the valve leaf (2); the connecting grooves of the valve leaves (2) on both sides are connected to each other; and a rubber pad (11) is provided on the connecting groove.

3. The smoke and fire damper according to claim 1, characterized in that: A heat insulation board (12) is provided inside the valve leaf (2), and the area of ​​the heat insulation board (12) is the same as the area of ​​the valve leaf (2).

4. The smoke and fire damper according to claim 1, characterized in that: A fastening bolt (13) is provided on one side of the valve leaf (2), a screw hole matching the fastening bolt (13) is provided inside the arc block (3), and the fastening bolt (13) passes through the inside of the valve leaf (2) and is connected to the arc block (3).

5. The smoke and fire damper according to claim 1, characterized in that: The locking block (7) is embedded in the valve (1), the end of the locking block (7) and the inner wall surface of the valve (1) are on the same plane, and the locking block (7) is slidably connected inside the valve (1).

6. The smoke and fire damper according to claim 1, characterized in that: One side of the locking block (7) is provided with an oblique angle, and one side of the locking block (7) located at the oblique angle abuts against the valve leaf (2). The cylinder (6) and the locking block (7) are provided with two and are symmetrically arranged on the upper and lower sides of the valve (1).

7. The smoke and fire damper according to claim 1, characterized in that: A controller (14) is provided on one side above the valve (1); an output end of the temperature sensing element (10) is electrically connected to an input end of the controller (14) via a wire; and an output end of the controller (14) is electrically connected to output ends of the servo motor (5) and the cylinder (6) via a wire.

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