Fireproof valve convenient to open

Abstract

The utility model discloses a fire damper convenient to open, which relates to the technical field of fire dampers and comprises a channel, two sealing plates which are vertically arranged at intervals are arranged in the channel, a rotating shaft is fixedly mounted on one side of each sealing plate, the rotating shafts are rotatably mounted on the channel and penetrate through the channel, and a limiting block is fixedly mounted at the top in the channel. Gears are fixedly installed at the ends of the rotating shafts, two side plates which are arranged up and down at intervals are fixedly installed on the outer side of the channel, a movable plate is arranged between the two side plates, a rack is fixedly installed at one end of the movable plate, and when high-temperature gas and open fire appear in the channel, the spring is heated to deform, and the spring is in a straightened state; therefore, the circular piece and the limiting piece move in the direction away from the heavy block together, the two sealing plates are kept fixed, and the channel is in a sealed state at the moment. After the valve is used, the heavy block can be manually driven to move upwards and reset, the limiting piece penetrates through the channel and supports the heavy block, and therefore the fireproof valve can be reset to the open state again after being closed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of fire damper, especially, relate to a fire damper convenient to open. BACKGROUND

[0002] The existing fire damper is increased with temperature control device on the basis of adjusting. It is in the opening state usually, when the fire occurs, the temperature fuse automatically makes the valve to close quickly, and manually reopens the valve. The fire damper is usually installed on the ventilation, air conditioning system pipe with fire control requirement. The fire damper is a temperature control of fusible alloy, which is closed by gravity and spring mechanism. The new product also has the valve closed by the deformation of memory alloy. When the smoke temperature reaches 280 DEG C, the people have basically evacuated, and the smoke exhaust has no practical significance, but the smoke has fire at this time, and the valve is automatically closed to avoid the spread of fire. The existing fire damper is in the closed state after working, and part of the fire damper has the value after working. The fire damper is not a disposable product, so it is necessary to restore to the opening state and use again, and the existing fire damper cannot be restored to the opening state after being closed, so we provide a kind of fire damper convenient to open. CONTENT OF UTILITY MODEL

[0003] The utility model aims at providing a kind of fire damper convenient to open, solve the existing fire damper in the closed state after working problem.

[0004] To solve the above technical problem, the utility model is realized by the following technical scheme:

[0005] The utility model is a kind of fire damper convenient to open, including passageway, two sealing plates spaced apart upwards and downwards are arranged in the passageway, the both ends of the sealing plate are set as cambered surface, the one side of the sealing plate is fixedly installed with rotating shaft, the rotating shaft is rotatably installed on passageway and penetrates passageway, the top of the passageway is fixedly installed with limit block, the both ends of the rotating shaft are fixedly installed with gear, two side plates spaced apart upwards and downwards are fixedly installed outside the passageway, movable plate is arranged between the two side plates, the one end of the movable plate is fixedly installed with rack, the rack is engaged with two gears, the other end of the movable plate is fixedly installed with weight, the one side of the passageway penetrates limit sheet, the one end of the limit sheet is located at the bottom of the weight and the weight is supported on the limit sheet, the one end of the limit sheet is fixedly installed with round sheet, spring is sleeved on the limit sheet, the both ends of the spring are fixedly connected on the round sheet and passageway respectively, the spring is located in passageway and is memory metal, the both ends of the movable plate penetrate guide rod, the both ends of the guide rod are fixedly connected on the side plate of two sides respectively.

[0006] Further, the both ends of the passageway are sleeved and fixedly installed with connecting frame, threaded mounting hole is formed in the corner of the connecting frame.

[0007] Further, the channel is externally provided with a fire extinguishing mechanism, one end of the fire extinguishing mechanism extending to the inside of the channel.

[0008] Further, the fire extinguishing mechanism comprises a tank body fixedly installed outside the channel, the tank body being filled with high-pressure fire extinguishing gas, an exhaust pipe being in communication with and fixedly installed on the tank body, one end of the exhaust pipe being inserted into the channel, an electromagnetic valve being installed on the exhaust pipe, and a temperature detector and a controller being installed on the tank body, the detection end of the temperature detector being located inside the channel.

[0009] Further, the high-pressure fire extinguishing gas filled in the tank body is carbon dioxide gas.

[0010] The utility model has the following beneficial effects:

[0011] 1. When high-temperature gas and open fire appear in the channel, the spring is deformed by heat, and the spring changes to a straight state, so that the disc and the limiting piece move away from the weight, the limiting piece is no longer supported by the weight, and the weight moves downward under the action of gravity, the movable plate and the rack move synchronously, the rack moves downward and drives the two gears to rotate synchronously, so that the sealing plate rotates around the rotating shaft, and when the upper sealing plate abuts against the limiting block, the two sealing plates are fixed and the channel is in a sealed state. When the valve is used, the weight can be manually lifted and reset, and the limiting piece penetrates the channel and supports the weight, so that the fire valve can be restored to the open state after being closed.

[0012] 2. When the temperature detector detects that the channel is in a high-temperature state, the temperature detector transmits a temperature signal to the controller, the controller analyzes and controls the electromagnetic valve to work, the electromagnetic valve is opened, and the carbon dioxide gas in the tank body is discharged through the exhaust pipe and extinguishes the open fire in the channel.

[0013] Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described above. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0015] Figure 1A structure diagram of a fire damper convenient to open;

[0016] Figure 2 A side view of a passage of a fire damper convenient to open;

[0017] Figure 3 An enlarged schematic view of the internal structure of a passage of a fire damper convenient to open;

[0018] Figure 4 An enlarged schematic view of the partial structure at the weight of a fire damper convenient to open;

[0019] In the drawings, the components represented by the respective reference numerals are listed as follows:

[0020] 1, passage; 2, sealing plate; 3, rotating shaft; 4, limiting block; 5, gear; 6, side plate; 7, movable plate; 8, rack; 9, weight; 10, limiting piece; 11, round piece; 12, spring; 13, connecting frame; 14, tank body; 15, exhaust pipe; 16, electromagnetic valve; 17, temperature detector; 18, controller; 19, guide rod. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0022] Please refer to Figures 1-4 The present application discloses a fire damper convenient to open, which comprises a passage 1, two sealing plates 2 arranged in an upper-lower interval in the passage 1, arc surfaces arranged at both ends of the sealing plates 2, rotating shafts 3 fixedly installed at one side of the sealing plates 2, the rotating shafts 3 being rotatably installed on the passage 1 and penetrating through the passage 1, a limiting block 4 fixedly installed at the top of the passage 1, gears 5 fixedly installed at the ends of the rotating shafts 3, two side plates 6 fixedly installed outside the passage 1 in an upper-lower interval, a movable plate 7 arranged between the two side plates 6, a rack 8 fixedly installed at one end of the movable plate 7, the rack 8 being engaged with the two gears 5, a weight 9 fixedly installed at the other end of the movable plate 7, a limiting piece 10 penetrating through one side of the passage 1, one end of the limiting piece 10 being located at the bottom of the weight 9 and the weight 9 being supported on the limiting piece 10, a round piece 11 fixedly installed at one end of the limiting piece 10, a spring 12 sleeved on the limiting piece 10, the two ends of the spring 12 being fixedly connected to the round piece 11 and the passage 1 respectively, the spring 12 being located in the passage 1 and being a memory metal, guide rods 19 penetrating through the two ends of the movable plate 7, and the two ends of the guide rods 19 being fixedly connected to the two side plates 6 respectively.

[0023] When high-temperature gas and open fire appear in the channel 1, the spring 12 is deformed by heat, and the spring 12 is changed into a straightened state, so that the disc 11 and the limiting sheet 10 move away from the weight 9, and the limiting sheet 10 is no longer supported by the weight 9, so that the weight 9 is moved downward under the action of gravity, and the movable plate 7 and the rack 8 are synchronously moved, the rack 8 is moved downward and drives the two gears 5 to synchronously rotate, so that the sealing plate 2 is rotated around the rotating shaft 3, and when the upper sealing plate 2 abuts against the limiting block 4, the two sealing plates 2 are fixed, and the channel 1 is in a sealed state. After the valve is used, the weight 9 can be manually moved upward and reset, and the limiting sheet 10 penetrates through the channel 1 and supports the weight 9, so that the fireproof valve can be restored to the open state after being closed.

[0024] As shown in Figure 1 and 3 The connecting frame 13 is fixedly installed at both ends of the channel 1, and threaded mounting holes are formed at the four corners of the connecting frame 13. A fire extinguishing mechanism is arranged outside the channel 1, and one end of the fire extinguishing mechanism extends into the channel 1. The fire extinguishing mechanism comprises a tank body 14 fixedly installed outside the channel 1, the tank body 14 is filled with high-pressure fire extinguishing gas, and an exhaust pipe 15 is communicated and fixedly installed on the tank body 14, one end of the exhaust pipe 15 is inserted into the channel 1, and an electromagnetic valve 16 is installed on the exhaust pipe 15. A temperature detector 17 and a controller 18 are installed on the tank body 14, and the detection end of the temperature detector 17 is located inside the channel 1. The high-pressure fire extinguishing gas filled in the tank body 14 is carbon dioxide gas. When the temperature detector 17 detects that the channel 1 is in a high-temperature state, the temperature detector 17 transmits a temperature signal to the controller 18, the controller 18 analyzes and controls the electromagnetic valve 16 to work, and the electromagnetic valve 16 is opened, so that the carbon dioxide gas in the tank body 14 can be discharged from the exhaust pipe 15 and extinguish the open fire in the channel 1.

[0025] One specific application of the embodiment is that when high-temperature gas and open fire appear in the channel 1, the spring 12 is deformed by heat, and the spring 12 is changed into a straightened state, so that the disc 11 and the limiting sheet 10 move away from the weight 9, so that one end of the limiting sheet 10 is away from the weight 9, the limiting sheet 10 no longer supports the weight 9, so that the weight 9 moves downward under the action of gravity, the movable plate 7 and the rack 8 move synchronously, the rack 8 moves downward and drives the two gears 5 to rotate synchronously, so that the sealing plate 2 rotates around the rotating shaft 3, when the upper sealing plate 2 abuts against the limiting block 4, the two sealing plates 2 are fixed, and the channel 1 is in a sealed state. After the valve is used, the weight 9 can be manually lifted and reset, and the limiting sheet 10 penetrates through the channel 1 and supports the weight 9, so that the fire valve can be restored to the open state after being closed.

[0026] The high-pressure fire-extinguishing gas filled in the tank body 14 is carbon dioxide gas, when the temperature detector 17 detects that the channel 1 is in a high-temperature state, the temperature signal is transmitted to the controller 18, the controller 18 analyzes and controls the electromagnetic valve 16 to work, the electromagnetic valve 16 is opened, so that the carbon dioxide gas in the tank body 14 can be discharged through the exhaust pipe 15 and extinguish the open fire in the channel 1.

[0027] In the description of the specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are contained in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0028] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details, and the utility model is limited to the specific embodiments described. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and describes these embodiments in order to better explain the principles and practical applications of the utility model, so that the persons skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the whole scope and equivalents thereof.

Claims

1. A fire damper for facilitating opening, characterised in that: The utility model provides a kind of fire extinguishing mechanism, including channel (1), two sealing plates (2) are arranged in the channel (1), the two ends of the sealing plate (2) are arranged as arc surface, one side of the sealing plate (2) is fixedly installed with rotating shaft (3), the rotating shaft (3) is rotatably installed on channel (1) and penetrates channel (1), the top of the channel (1) is fixedly installed with limit block (4), the end of the rotating shaft (3) is fixedly installed with gear (5), the outside of the channel (1) is fixedly installed with two side plates (6) spaced apart, and movable plate (7) is arranged between the two side plates (6), the movable plate (7) one end is fixedly installed with rack (8), the rack (8) is engaged with two gears (5), the movable plate (7) other end is fixedly installed with weight (9), one side of the channel (1) penetrates limit sheet (10), the limit sheet (10) one end is located at the bottom of weight (9) and weight (9) is supported on limit sheet (10), the limit sheet (10) one end is fixedly installed with round sheet (11), spring (12) is sleeved on the limit sheet (10), the spring (12) both ends are fixedly connected on round sheet (11) and channel (1), the spring (12) is located in channel (1) and is memory metal, the movable plate (7) both ends are penetrated with guide rod (19), and the guide rod (19) both ends are fixedly connected on the side plate (6) of two sides respectively.

2. A fire damper according to claim 1, characterised in that The both ends of the channel (1) are sleeved and fixedly installed with connecting frame (13), and threaded mounting holes are formed in the four corners of the connecting frame (13).

3. A fire damper according to claim 1, wherein, The channel (1) is provided with a fire extinguishing mechanism outside, and one end of the fire extinguishing mechanism extends into the channel (1).

4. A fire damper according to claim 3, wherein, The fire extinguishing mechanism includes a tank (14) fixedly installed outside the channel (1), the tank (14) is filled with high-pressure fire-extinguishing gas, the tank (14) is communicated with and fixedly installed with an exhaust pipe (15), one end of the exhaust pipe (15) is inserted into the channel (1), the exhaust pipe (15) is installed with a solenoid valve (16), and further includes a temperature detector (17) and a controller (18), the temperature detector (17) and the controller (18) are installed on the tank (14), and the detection end of the temperature detector (17) is located inside the channel (1).

5. A fire damper according to claim 4, wherein, The high-pressure fire-extinguishing gas filled in the tank (14) is carbon dioxide gas.

Images