Composite fireproof valve

Abstract

The utility model provides a composite type fireproof valve which comprises a valve body, wind blocking strips are arranged on the inner walls of the upper side and the lower side of the valve body, a plurality of blade shafts are arranged on the inner walls of the left side and the right side of the valve body, blades are connected to the blade shafts in a rotating mode, an executing mechanism is arranged on the valve body, and the executing mechanism is connected with a temperature sensor in the valve body. The outer valve body is fixedly welded to the outer portion of the valve body, a circle of empty groove is formed between the outer valve body and the valve body, the empty groove is filled with fireproof materials, and the special fireproof materials are arranged in the middle of the valve body of the fireproof valve, so that when the fireproof valve encounters a fire disaster, the structure of the fireproof valve can still be kept complete for a long time, and deformation or damage cannot happen; heat in a fire is effectively prevented from being transmitted through the valve, smoke is isolated, flame spreading is prevented, and other parts of a building structure are protected against fire threats.

Description

Technical Field

[0001] The utility model relates to the technical field of fire dampers, and specifically relates to a composite fire damper. Background Technique

[0002] A fire damper is a device used to control the air flow, usually installed in the ventilation system of a building. Its main function is to automatically close the valve when a fire occurs, preventing the spread of fire to other areas. Fire dampers are usually made of metal and have characteristics such as corrosion resistance and high temperature resistance. When a fire occurs, the fire damper will automatically close, cutting off the passage of the fire source and smoke, thereby protecting people's lives and property safety.

[0003] The existing fire dampers such as Figures 1-3 As shown, inside the valve body 1, a plurality of blades 2 are connected by a blade shaft 201. A connecting plate 4 is sleeved on one side of the blade shaft 201 extending out from the side of the valve body 1. The connecting plates 4 are connected to each other by a connecting rod 401. An actuator 3 is provided on the side of the valve body 1, and the actuator 3 is connected to a temperature sensor 7 inside the valve body 1. Under normal circumstances, the valve remains open. When a fire occurs, the indoor temperature continues to rise, and the increased temperature triggers the temperature sensor 7 inside the valve body 1, causing the actuator 3 to drive the blade shaft 201 to rotate, and at the same time driving all the blades to close the valve through the transmission of the connecting rod 401 to prevent the spread of the flame.

[0004] However, when a fire occurs in the existing fire damper, due to the influence of the burning items, degree and various factors, the indoor temperature may cause the deformation of the valve body 1 and the blades 2, which may lead to the inability of the valve body 1 to close or gaps remaining after the blades 2 are closed, thereby affecting the normal operation of the fire damper and causing serious consequences. Summary of the Invention

[0005] The purpose of the utility model is to provide a composite fire damper to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A composite fire damper, comprising:

[0008] A valve body, on the inner walls of the upper and lower sides of the valve body there are wind blocking strips, on the inner walls of the left and right sides of the valve body there are a plurality of blade shafts, blades are rotatably connected to the blade shafts, an actuator is provided on the valve body, and the actuator is connected to a temperature sensor inside the valve body;

[0009] An outer valve body, which is fixedly welded to the outside of the valve body, so that an annular empty groove is formed between the outer valve body and the valve body, and the empty groove is filled with fireproof material.

[0010] Preferably, a 7-shaped blade connecting rod is hinged to the blade, and the other end of the blade connecting rod is hinged to another blade.

[0011] Preferably, the upper edge of the blade has an upper joint piece that tilts backward, and the lower edge of the blade has a lower joint piece that protrudes forward. There is a gasket between the upper joint piece and the lower joint piece between the two blades. On the side where the blade is close to the inner wall of the valve body, the upper joint piece or the lower joint piece is closed with the wind deflector strip.

[0012] Preferably, the wind deflector strip has a groove that matches the upper joint piece or the lower joint piece. There is a gasket in the groove of the wind deflector strip, and the gasket closely adheres to the upper joint piece and the lower joint piece when the valve body is closed.

[0013] Preferably, a protective component copper sleeve is sleeved on the part where the blade shaft extends out of the side of the valve body.

[0014] Preferably, corner codes are used to weld and fix the four corners of the outer side walls of the valve body and the outer valve body.

[0015] Compared with the prior art, the beneficial effects of the present utility model are:

[0016] In the present utility model, by arranging a special fireproof material in the middle of the fire damper valve body, the equipment can still maintain the structural integrity for a long time when encountering a fire, without deformation or damage, effectively preventing the heat in the fire from being transmitted through the valve, isolating the smoke and preventing the spread of the flame, and protecting other parts of the building structure from the threat of fire. Description of the Drawings

[0017] Figure 1 It is the top view of the prior art of the present utility model;

[0018] Figure 2 It is the side view of the prior art of the present utility model;

[0019] Figure 3 It is the cross-sectional view of the prior art of the present utility model;

[0020] Figure 4 It is the top view of the valve closed of the present utility model;

[0021] Figure 5 It is the top view of the valve opened of the present utility model;

[0022] Figure 6 It is the side view of the valve body of the present utility model;

[0023] Figure 7 It is the side cross-sectional view of the valve body in the closed state of the present utility model;

[0024] Figure 8 It is the side cross-sectional view of the valve body in the opened state of the present utility model;

[0025] In the figure: 1 - valve body, 2 - blade, 201 - blade shaft, 202 - copper bushing, 203 - lower joint piece, 204 - upper joint piece, 205 - gasket, 3 - actuator, 4 - connecting piece, 401 - connecting rod, 5 - windscreen strip, 6 - outer valve body, 7 - temperature sensor, 8 - angle code, 9 - blade connecting rod, 10 - fireproof material. Specific implementation mode

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention. Embodiment

[0027] Please refer to Figures 3 to 8 , the present invention provides a technical solution:

[0028] A composite fire damper, comprising:

[0029] The valve body 1, on the inner walls of the upper and lower sides of the valve body 1 there are windscreen strips 5, on the inner walls of the left and right sides of the valve body 1 there are a plurality of blade shafts 201, the blade shafts 201 are rotatably connected with blades 2, an actuator 3 is provided on the valve body 1, and the actuator 3 is connected to the temperature sensor 7 inside the valve body 1;

[0030] The outer valve body 6, the outer valve body 6 is fixedly welded to the outside of the valve body 1, so that an annular empty groove is formed between the outer valve body 6 and the valve body 1, and the empty groove is filled with fireproof material 10.

[0031] In this embodiment, under normal conditions, the valve body 1 remains open and the blade 2 remains upright.

[0032] When a fire occurs, the indoor fire causes the room temperature to rise. At this time, the temperature sensor 7 in the valve body 1 senses the temperature rise and transmits a signal to the actuator 3. The actuator drives the blade shaft 201 to rotate, closes the blade 2, and uses the gasket 205 between the windscreen strip 5 and the blade 2 to completely close the valve body 1 to prevent the spread of the fire.

[0033] Specifically, a 7-shaped blade connecting rod 9 is hinged on the blade 2, and the other end of the blade connecting rod 9 is hinged on another blade 2. When the actuator 3 drives one blade 2 to close, the other blades will also close accordingly.

[0034] Specifically, the upper edge of the blade 2 has an upper joint piece 204 that tilts backward, and the lower edge of the blade 2 has a lower joint piece 203 that protrudes forward. There is a gasket 205 between the upper joint piece 204 and the lower joint piece 203 between the two blades 2. On the side of the blade 2 close to the inner wall of the valve body 1, the upper joint piece 204 or the lower joint piece 203 is closed with the windscreen strip 5.

[0035] Specifically, the windscreen strip 5 has a groove that cooperates with the upper joint piece 204 or the lower joint piece 203. There is a gasket 205 in the groove of the windscreen strip 5. The gasket 205 closely adheres to the upper joint piece 204 and the lower joint piece 203 when the valve body 1 is closed.

[0036] Since an outer valve body 6 is welded outside the valve body 1, and a special fireproof material 10 is filled between the outer valve body 6 and the valve body 1. At high temperatures, because the structure of the fireproof material 10 itself is stable, it can play a supporting role for the outer valve body 6 and the valve body 1. At the same time, the fireproof material 10 blocks the high temperature outside the valve body 1 from contacting the valve body 1, avoiding deformation of the valve body 1 and the blade 2.

[0037] Specifically, the type of the fireproof material 10 is not fixed, as long as it can fill the empty groove between the valve body 1 and the outer valve body 6.

[0038] Specifically, a protective component copper sleeve 202 is sleeved on the part where the blade shaft 201 extends out on the side of the valve body 1.

[0039] Specifically, angle codes 8 are used to weld and fix the four corners of the outer side walls of the valve body 1 and the outer valve body 6.

[0040] For the rest of the present utility model that is not described, it can be the same as the prior art, or be well-known technology, or can be implemented by using the prior art, and will not be elaborated here.

[0041] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A composite fire damper, characterized in that, Comprising: A valve body (1), on the inner walls of the upper and lower sides of the valve body (1) there are wind blocking strips (5), on the inner walls of the left and right sides of the valve body (1) there are a plurality of blade shafts (201), a blade (2) is rotatably connected to the blade shaft (201), an actuator (3) is provided on the valve body (1), and the actuator (3) is connected to a temperature sensor (7) inside the valve body (1); An outer valve body (6), the outer valve body (6) is fixedly welded to the outside of the valve body (1), so that an annular empty groove is formed between the outer valve body (6) and the valve body (1), and the empty groove is filled with a fireproof material (10).

2. The composite fire damper according to claim 1, wherein: A 7-shaped blade connecting rod (9) is hinged on the blade (2), and the other end of the blade connecting rod (9) is hinged on another blade (2).

3. The composite fire damper according to claim 2, characterized in that: The upper edge part of the blade (2) has an upper closing piece (204) that tilts backward, the lower edge part of the blade (2) has a lower closing piece (203) that protrudes forward, between the upper closing piece (204) and the lower closing piece (203) located between two blades (2) there is a gasket (205), on the side of the blade (2) close to the inner wall of the valve body (1), the upper closing piece (204) or the lower closing piece (203) is closed with the upper and lower edge parts of the corresponding wind blocking strips (5) on both sides.

4. The composite fire damper according to claim 3, characterized in that: The wind blocking strip (5) has a groove that cooperates with the upper closing piece (204) or the lower closing piece (203), and the groove of the wind blocking strip (5) has a gasket (205), and the gasket (205) closely adheres to the upper closing piece (204) and the lower closing piece (203) when the valve body (1) is closed.

5. The composite fire damper according to claim 2, wherein: A protective component copper sleeve (202) is sleeved on the part where the blade shaft (201) extends out on the side of the valve body (1).

6. A composite fire damper according to claim 1, characterized in that: Angle codes (8) are used to weld and fix the four corners of the outer side walls of the valve body (1) and the outer valve body (6).

Images