Fireproof valve

Abstract

The fireproof valve comprises a valve body, a fireproof valve executing mechanism is arranged on the left side of the valve body, a temperature sensor is arranged in the fireproof valve executing mechanism, the detection end of the temperature sensor penetrates into the valve body, four blade shafts are arranged in an inner cavity of the valve body, fireproof blades are arranged on the surfaces of the blade shafts, and a nameplate is arranged on one side of the top of the valve body. The fireproof valve comprises a valve body, a fireproof valve executing mechanism, a temperature sensor, four fireproof blades, a nameplate and a pressing plate, the valve body is provided with a plurality of blade shafts, the driving end of the fireproof valve executing mechanism is in key connection with one blade shaft, one end of each fireproof blade is provided with a connecting rod piece, and one side of each connecting rod is movably connected with an adjusting piece through the corresponding blade shaft. The fire damper solves the problems that when an existing fire damper blocks a fire source, a certain gap exists in the connecting position of two reeds, the fire source cannot be completely sealed and blocked, and sealing performance is lacked.

Description

Technical Field

[0001] The utility model belongs to the technical field of fire dampers, in particular to fire dampers. Background Art

[0002] Fire damper, normally open, closed at 70℃ or 280℃, usually installed where air duct passes through firewall and structural deformation joint, plays a role in fire control, and can be set to output electrical signal. When the temperature exceeds 70℃ or 280℃, the valve closes and the fan is shut down.

[0003] The present invention designs a fire damper, which is used to block the fire source. During normal use, the two reeds in the fire damper are vertical, which is conducive to the circulation of air. However, after the fire source is generated, the two reeds in the fire damper will automatically rebound to a parallel state, so that the internal space of the valve body is blocked, thereby blocking the fire source. However, there is a certain gap at the connection between the two reeds of the existing sealing reed when in use, and the fire source cannot be completely sealed and blocked. Therefore, in view of the above problems, the present invention designs a fire damper with good fire source blocking sealing performance, easy operation and high safety performance, which can effectively solve the above problems, improve the practicality of the fire damper, and bring a good use experience to users. Summary of the invention

[0004] In view of the problems existing in the prior art, the utility model provides a fire damper having the advantages of good fire source blocking sealing performance, simple operation and high safety performance. It solves the problem that when the existing fire damper blocks the fire source, there is a certain gap at the connection between the two springs, the fire source cannot be completely sealed and blocked, and the problem of lack of sealing.

[0005] The utility model is implemented as follows: a fire damper comprises a valve body, a fire damper actuator is arranged on the left side of the valve body, a temperature sensor is arranged inside the fire damper actuator, a detection end of the temperature sensor passes through the interior of the valve body, an inner cavity of the valve body is provided with four blade shafts, a surface of the blade shaft is provided with fire blades, a nameplate is arranged on one side of the top of the valve body, a driving end of the fire damper actuator is keyed to one of the blade shafts, one end of the four fire blades are provided with connecting rods, one side of the connecting rod is movably connected with an adjusting member through the blade shaft, a connecting rod is arranged between one ends of the four adjusting members, connecting shells are arranged at both ends of the inner cavity of the valve body, a composite bracket is arranged on the surface of the connecting shell, a copper sleeve is arranged in the inner cavity of the connecting shell, the inner cavity of the copper sleeve is keyed to the blade shaft, and two pressure plates are arranged on the surface of the fire blades.

[0006] As a preferred embodiment of the present invention, a spring is fixedly connected to the outer surface of the connecting shell, and a side of the spring close to the inner wall of the composite bracket is fixedly connected to the inner wall of the composite bracket.

[0007] As a preferred embodiment of the present invention, a connecting rod foot is provided at one end of the connecting rod member, and an end of the connecting rod foot close to the blade is fixedly connected to the fireproof blade.

[0008] As a preferred embodiment of the utility model, both sides of the bottom of the valve body are connected with adjusting plates through a rotating shaft key, a hanging hole is formed on the surface of the adjusting plate, a tension spring is provided in the inner cavity of the hanging hole, and one end of the tension spring is connected to a blade shaft extending to the outside of the valve body.

[0009] As a preferred embodiment of the present invention, baffles are provided at both ends of the inner cavity of the valve body, and a surface of the baffle is in contact with one of the blades.

[0010] As a preferred embodiment of the present invention, sealing reeds are provided on opposite sides of the two fireproof blades, and inclined surfaces are provided on opposite sides of the two sealing reeds.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. The utility model solves the problem that when the existing fire damper blocks the fire source, there is a certain gap at the connection between the two springs, which makes it impossible to completely seal and block the fire source and lacks sealing performance by arranging the valve body, the fire damper actuator, the temperature sensor, the blade shaft, the fire blade, the nameplate, the connecting rod, the copper sleeve and the pressure plate.

[0013] 2. The utility model provides a spring which is fixedly connected to the inner wall of the composite bracket, thereby squeezing the composite bracket when the blade changes from vertical to horizontal, causing the composite bracket to shrink and rebound under reverse pressure, thereby improving the sealing performance. The utility model provides a connecting rod foot which is fixedly connected to the blade, thereby reinforcing the connecting rod member and the blade. The coordinated use of the adjusting plate and the tension spring improves the torque force of the blade shaft. The utility model provides a baffle which is fitted with one of the blades, thereby limiting the blade. The utility model provides a sealing spring sheet with an inclined surface on one side of the sealing spring sheet, thereby improving the sealing effect when the connection between the two sealing spring sheets overlaps.

[0014] When in use, the staff first installs the valve body in the use position. During normal use, the four fireproof blades will be vertical to facilitate air circulation. However, when a fire source appears, the temperature sensor will detect the fire source and transmit the signal to the fire damper actuator. At this time, the driving end of the fire damper actuator will drive a blade shaft to rotate ninety degrees, and then one of the blade shafts will drive one of the fireproof blades from vertical to parallel. Then one of the fireproof blades will drive the adjusting member and the connecting rod to adjust at the same time through the connecting rod, so that the remaining three fireproof blades can also be adjusted to parallel through the connecting rod, so as to block the fire source; since sealing reeds are provided on the opposite side of the two fireproof blades, and corresponding inclined surfaces are provided on the surfaces of the two sealing reeds, the sealing reeds will be tightly connected to each other, so as to achieve the effect of sealing and fire prevention, and improve the practicality and safety of the fire damper. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram provided by an embodiment of the utility model;

[0016] Figure 2 It is a schematic diagram of the top and bottom structures of the valve body provided by the embodiment of the utility model;

[0017] Figure 3 It is a diagram of the valve opening and closing states provided by the embodiment of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the blade shaft connection end provided by an embodiment of the utility model;

[0019] Figure 5 The utility model embodiment provides Figure 3 A partial enlarged view of point E in the middle.

[0020] In the figure: 1. Fire damper actuator; 2. Temperature sensor; 3. Fire blade; 4. Valve body; 5. Pressure plate; 6. Blade shaft; 7. Connecting rod foot; 8. Connecting rod; 9. Tension spring; 10. Baffle; 11. Nameplate; 12. Sealing spring; 13. Composite bracket; 14. Spring; 15. Copper sleeve. DETAILED DESCRIPTION

[0021] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0022] The structure of the utility model is described in detail below in conjunction with the accompanying drawings.

[0023] like Figures 1 to 5As shown, the fire damper provided by the embodiment of the utility model includes a valve body 4, a fire damper actuator 1 is arranged on the left side of the valve body 4, a temperature sensor 2 is arranged inside the fire damper actuator 1, and the detection end of the temperature sensor 2 passes through the interior of the valve body 4, the inner cavity of the valve body 4 is provided with four blade shafts 6, and the surface of the blade shaft 6 is provided with fire blades 3, and a nameplate 11 is arranged on one side of the top of the valve body 4, the driving end of the fire damper actuator 1 is key-connected with one of the blade shafts 6, one end of the four fire blades 3 is provided with a connecting rod 8, one side of the connecting rod is movably connected with an adjusting member through the blade shaft 6, a connecting rod is arranged between one ends of the four adjusting members, connecting shells are arranged at both ends of the inner cavity of the valve body 4, a composite bracket 13 is arranged on the surface of the connecting shell, a copper sleeve 15 is arranged in the inner cavity of the connecting shell, the inner cavity of the copper sleeve 15 is key-connected with the blade shaft 6, and two pressure plates 5 are arranged on the surface of the fire blade 3.

[0024] refer to Figure 1-Figure 5 A spring 14 is fixedly connected to the outer surface of the connecting shell, and the side of the spring 14 close to the inner wall of the composite bracket 13 is fixedly connected to the inner wall of the composite bracket 13, and a connecting rod foot 7 is provided at one end of the connecting rod member 8, and the end of the connecting rod foot 7 close to the blade is fixedly connected to the fireproof blade 3, and both sides of the bottom of the valve body 4 are connected with adjusting plates through a rotating shaft key, and a hanging hole begins to be provided on the surface of the adjusting plate, and a tension spring 9 is provided in the inner cavity of the hanging hole, and one end of the tension spring 9 is connected to the blade shaft 6 that passes through the outside of the valve body 4, and baffles 10 are provided at both ends of the inner cavity of the valve body 4, and the surface of the baffle 10 is fitted with one of the blades, and sealing springs 12 are provided on the opposite sides of the two fireproof blades 3, and the opposite sides of the two sealing springs 12 are provided with inclined surfaces.

[0025] The above scheme is adopted: by setting a spring 14, the spring 14 is fixedly connected to the inner wall of the composite bracket 13, so that the composite bracket 13 is squeezed when the blade changes from vertical to horizontal, so that the composite bracket 13 shrinks and rebounds under reverse pressure, so as to improve the sealing performance; by setting a connecting rod foot 7, the connecting rod foot 7 is fixedly connected to the blade, so as to reinforce the connecting rod member 8 and the blade; by setting an adjustment plate and a tension spring 9, the torque of the blade shaft 6 is improved; by setting a baffle 10, the baffle 10 is in contact with one of the blades, so as to limit the blade; by setting a sealing spring 12, a slope is set on one side of the sealing spring 12, so as to improve the sealing effect when the connection between the two sealing springs 12 overlaps.

[0026] The working principle of this utility model:

[0027] When in use, the staff first installs the valve body 4 in the use position. During normal use, the four fireproof blades 3 will be vertical to facilitate air circulation. However, when a fire source appears, the temperature sensor 2 will detect the fire source and transmit the signal to the fire damper actuator 1. At this time, the driving end of the fire damper actuator 1 will drive a blade shaft 6 to rotate ninety degrees, and then one of the blade shafts 6 will drive one of the fireproof blades 3 from vertical to parallel, and then one of the fireproof blades 3 will be driven by the connecting rod to drive the adjusting member and the connecting rod to adjust at the same time, so that the remaining three fireproof blades 3 are also adjusted to be parallel through the connecting rod, so as to block the fire source; since the two fireproof blades 3 are provided with sealing reeds 12 on the opposite side, and the surfaces of the two sealing reeds 12 are provided with corresponding inclined surfaces, the sealing reeds 12 will be tightly connected with the sealing reeds 12, so as to achieve the effect of sealing and fire prevention, and improve the practicality and safety of the fire damper.

[0028] In summary: the fire damper, by providing a valve body 4, a fire damper actuator 1, a temperature sensor 2, a blade shaft 6, a fire blade 3, a nameplate 11, a connecting rod 8, a copper sleeve 15 and a pressure plate 5, solves the problem that when the existing fire damper blocks the fire source, there is a certain gap at the connection between the two springs, the fire source cannot be completely sealed and blocked, and the problem of lack of sealing.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fire damper, comprising a valve body (4), characterized in that: A fire damper actuator (1) is arranged on the left side of the valve body (4), a temperature sensor (2) is arranged inside the fire damper actuator (1), a detection end of the temperature sensor (2) penetrates into the interior of the valve body (4), four blade shafts (6) are arranged in the inner cavity of the valve body (4), a fire blade (3) is arranged on the surface of the blade shaft (6), a nameplate (11) is arranged on one side of the top of the valve body (4), and a driving end of the fire damper actuator (1) is keyed to one of the blade shafts (6). The four fireproof blades (3) are connected, one end of each of the four fireproof blades (3) is provided with a connecting rod (8), one side of the connecting rod is movably connected to an adjusting member through a blade shaft (6), a connecting rod is provided between one ends of the four adjusting members, both ends of the inner cavity of the valve body (4) are provided with a connecting shell, the surface of the connecting shell is provided with a composite bracket (13), the inner cavity of the connecting shell is provided with a copper sleeve (15), the inner cavity of the copper sleeve (15) is key-connected to the blade shaft (6), and the surface of the fireproof blade (3) is provided with two pressure plates (5).

2. The fire damper according to claim 1, characterized in that: A spring (14) is fixedly connected to the outer surface of the connection shell, and the side of the spring (14) close to the inner wall of the composite bracket (13) is fixedly connected to the inner wall of the composite bracket (13).

3. The fire damper according to claim 1, characterized in that: A connecting rod foot (7) is provided at one end of the connecting rod member (8), and the connecting rod foot (7) is fixedly connected to the fireproof blade (3) at one end close to the blade.

4. The fire damper according to claim 1, characterized in that: Both sides of the bottom of the valve body (4) are connected to adjustment plates via a rotating shaft key, and a hanging hole is formed on the surface of the adjustment plate. A tension spring (9) is provided in the inner cavity of the hanging hole, and one end of the tension spring (9) is connected to a blade shaft (6) that passes through the outside of the valve body (4).

5. The fire damper according to claim 1, characterized in that: Baffles (10) are provided at both ends of the inner cavity of the valve body (4), and the surface of the baffle (10) is in contact with one of the blades.

6. The fire damper according to claim 1, characterized in that: The two fireproof blades (3) are each provided with a sealing reed (12) on one side opposite to the other, and the two sealing reeds (12) are each provided with an inclined surface on one side opposite to the other.

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