Fire-fighting smoke exhaust pipeline capable of being automatically opened

Abstract

The utility model relates to a fire-fighting smoke exhaust pipeline capable of being automatically opened, which belongs to the technical field of fire-fighting smoke exhaust pipelines and comprises a building wall, a smoke exhaust pipeline main body is fixedly mounted in the building wall, an opening and closing door is hinged to the bottom of the front side of the smoke exhaust pipeline main body through a hinge, and a sealing ring is adhered to the back side of the opening and closing door. An automatic opening mechanism is mounted between the inner side and the outer side of the smoke exhaust pipeline main body; the automatic opening mechanism comprises a fixing plate fixed to the inner top wall of the smoke exhaust pipeline body, an extending block fixed to the front face of the fixing plate, a main electromagnetic block fixedly installed on the front face of the extending block, an auxiliary electromagnetic block fixedly installed on the back face of the opening and closing door and an equipment box fixed to the inner side of the smoke exhaust pipeline body. The box cover is detachably connected to the right side of the equipment box, and the smoke sensor is fixedly installed on the outer side of the equipment box. The fire-fighting smoke exhaust pipeline capable of being automatically opened can be automatically opened according to actual conditions so as to achieve the smoke exhaust effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to fire smoke exhaust pipeline technical field, concretely is a kind of fire smoke exhaust pipeline that can be opened automatically. BACKGROUND

[0002] Fire smoke exhaust ventilation pipeline refers to the pipeline system for fire safety and fresh air ventilation, its role is to realize effective indoor air circulation by smoke exhaust and ventilation, and fire smoke exhaust ventilation system is one of important components of building fire system, its main role is to provide smoke exhaust, heat preservation, heat insulation, fire prevention and other multiple functions when fire occurs, so as to protect the safety of personnel and property, and the setting of fire smoke exhaust pipeline is a crucial link in building fire design, which not only relates to the safety evacuation of personnel in fire, but also directly affects the control of fire and extinguishing efficiency.

[0003] In the prior art, flue gas will rise after being heated, so the smoke exhaust pipeline is usually arranged at the highest point of the building to facilitate the smooth exhaust of flue gas, and in the construction of industrial plants and other facilities, the opening of the fire smoke exhaust pipeline is generally arranged on the top floor of the plant, when fire occurs or other hazards with a lot of smoke occur, the workers of the plant need to move to the position where the fire smoke exhaust pipeline is arranged on the top floor, and then open the pipeline door manually to enable the flue gas in the pipeline and the flue gas in the plant to be normally exhausted, so as to facilitate subsequent fire fighting work, but such an operation mode will first cause the relevant operating personnel to be unable to move to a safe position in the first time, and in the process of moving to the top floor before opening the pipeline door, the pipeline will inevitably be filled with a lot of harmful gases in the time, and when the pipeline is opened, the high-temperature flue gas and other harmful gases in the pipeline will be immediately exhausted, which can easily cause harm to the operating personnel opening the pipeline if the experience is insufficient or the operation is wrong, and therefore, the present application provides a fire smoke exhaust pipeline that can be automatically opened to solve the above problems based on the change of the existing situation. SUMMARY

[0004] (I) Technical problem solved

[0005] In view of the deficiencies of the prior art, the utility model provides a fire smoke exhaust pipeline that can be automatically opened, which has the advantages of being able to be automatically opened according to actual conditions to achieve smoke exhaust effect, and solves the problem that the existing fire smoke exhaust pipeline needs to be manually opened by workers, which can easily cause harm to the workers.

[0006] (II) Technical solution

[0007] In order to realize the above-mentioned automatic opening according to the actual situation, so as to achieve the purpose of smoke exhaust effect, the utility model provides the following technical scheme: a kind of fire-fighting smoke exhaust duct that can be automatically opened, building wall is fixedly installed with smoke exhaust duct main body in the inside of building wall, the front bottom of smoke exhaust duct main body is hinged with open-close door by hinge, the back of open-close door is bonded with sealing ring, automatic opening mechanism is installed between the inside and the outside of smoke exhaust duct main body, two spring supports are fixedly installed between the front of open-close door and the front of building wall.

[0008] The automatic opening mechanism includes a fixed plate fixed to the inner top wall of the smoke exhaust duct main body, an extension block fixed to the front of the fixed plate, a main electromagnetic block fixedly installed on the front of the extension block, a secondary electromagnetic block fixedly installed on the back of the open-close door, an equipment box fixed to the inside of the smoke exhaust duct main body, a box cover detachably connected to the right side of the equipment box, a smoke sensor fixedly installed on the outside of the equipment box, a circuit board fixedly installed on the inside of the equipment box, a fuse integrated on the surface of the circuit board, a small controller integrated on the surface of the circuit board, and an adaptive power supply integrated on the surface of the circuit board. The outside of the smoke exhaust duct main body is provided with a limiting assembly for limiting the position of the open-close door.

[0009] Further, the limiting assembly includes two sliding rods fixed to the left and right sides of the open-close door respectively, a limiting piece fixed to the end of the sliding rod away from the open-close door, two limiting plates fixed to the left and right sides of the smoke exhaust duct main body respectively, and a limiting hole opened on the side of the limiting plate close to the open-close door. The spring support includes two mounting plates, two connecting frames, and two connecting shells with open top and bottom. The two mounting plates are fixedly installed on the front of the open-close door and the building wall respectively. The two connecting frames are hinged to the front of the top mounting plate by a pin shaft. The side of the connecting frame away from the top mounting plate is hinged to the inside of the corresponding connecting shell by a pin shaft. The bottom of the two connecting shells is hinged to the front of the bottom mounting plate by a pin shaft. A torsion spring is fixedly installed between the front of the bottom mounting plate and the outside of the connecting shell outside the corresponding pin shaft.

[0010] Further, the two sliding rods are respectively inserted and slidingly connected to the inside of the two limiting holes. The limiting hole is arc-shaped, and the center of the arc and the hinge point of the open-close door are located on the same straight line.

[0011] Further, the limiting piece is located on the side of the limiting plate away from the open-close door, and the diameter of the limiting piece is greater than the diameter of the sliding rod.

[0012] Further, the front of the smoke exhaust duct main body is provided with an opening, and the front of the smoke exhaust duct main body is inclined.

[0013] Further, the opening and closing door is attached to the front of the smoke exhaust duct body, and the outer side of the sealing ring is attached to the inner side of the smoke exhaust duct body.

[0014] Further, the front of the main electromagnetic block is attached to the front of the auxiliary electromagnetic block, and the main electromagnetic block, the fuse, the small controller and the adaptive power supply are located on the same circuit.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the fire-fighting smoke exhaust duct capable of being automatically opened has the following beneficial effects:

[0017] The fire-fighting smoke exhaust duct capable of being automatically opened can be automatically opened according to actual conditions through the cooperation between the smoke exhaust duct body, the opening and closing door, the automatic opening mechanism and the limiting assembly inside the building wall, so as to achieve the smoke exhaust effect, and the staff can evacuate at the first time when the disaster occurs, thereby improving the evacuation efficiency, avoiding the situation that manual opening of the duct for smoke exhaust is easy to cause harm to the body, effectively protecting the personal safety, and achieving effective sealing effect without opening, so that the fire-fighting smoke exhaust duct capable of being automatically opened has excellent practicability. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 It is a local enlarged schematic diagram of A part in the structure of the utility model;

[0020] Figure 3 It is a sectional view schematic diagram of the building wall connecting structure in the structure of the utility model;

[0021] Figure 4 It is a sectional view schematic diagram of the structure of the utility model; Figure 3

[0022] Figure 5 It is an internal schematic diagram of the equipment box connecting structure in the structure of the utility model; Figure 4

[0023] Figure 6 It is a spring support connecting structure schematic diagram in the structure of the utility model.

[0024] ​​In the figure: 1 building wall, 201 smoke exhaust duct main body, 202 opening and closing door, 203 sealing ring, 300 automatic opening mechanism, 301 fixed plate, 302 extension block, 303 main electromagnetic block, 304 auxiliary electromagnetic block, 305 equipment box, 306 box cover, 307 smoke sensor, 308 circuit board, 309 fuse, 310 small controller, 311 adaptive power supply, 312 sliding rod, 313 limiting sheet, 314 limiting plate, 315 limiting hole, 4 spring support. DETAILED DESCRIPTION

[0025] 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.

[0026] Please refer to Figures 1 to 6 The present application provides a technical solution: a fire-fighting smoke exhaust duct capable of being automatically opened, comprising a building wall 1, wherein the inside of the building wall 1 is fixedly installed with a smoke exhaust duct main body 201, the front bottom of the smoke exhaust duct main body 201 is hingedly connected with an opening and closing door 202 through a hinge, the back of the opening and closing door 202 is bonded with a sealing ring 203, an automatic opening mechanism 300 is installed between the inside and the outside of the smoke exhaust duct main body 201, and two spring support members 4 are fixedly installed between the front of the opening and closing door 202 and the front of the building wall 1. Through the cooperation between the smoke exhaust duct main body 201, the opening and closing door 202, the automatic opening mechanism 300 and the limiting assembly on the inside of the building wall 1, the opening and closing door 202 can be automatically opened according to the actual situation, so as to achieve the smoke exhaust effect, and the staff can evacuate at the first time when the disaster occurs, thereby improving the evacuation efficiency, avoiding the situation that the body is easily injured when manually opening the smoke exhaust duct, effectively protecting the personal safety, and the automatic opening mechanism 300 can also play an effective sealing role when not opened, so that the fire-fighting smoke exhaust duct capable of being automatically opened has excellent practicability.

[0027] The automatic opening mechanism 300 in the embodiment is a structure for automatically opening the opening and closing door 202.

[0028] As Figure 3 , Figure 4 and Figure 5As shown, the automatic opening mechanism 300 includes a fixed plate 301 fixed to the inner top wall of the smoke exhaust duct body 201, an extension block 302 fixed to the front of the fixed plate 301, a main electromagnetic block 303 fixedly installed on the front of the extension block 302, a secondary electromagnetic block 304 fixedly installed on the back of the opening and closing door 202, a device box 305 fixed to the inner side of the smoke exhaust duct body 201, a box cover 306 detachably connected to the right side of the device box 305, a smoke sensor 307 fixedly installed on the outer side of the device box 305, a circuit board 308 fixedly installed on the inner side of the device box 305, a fuse 309 integrated on the surface of the circuit board 308, a small controller 310 integrated on the surface of the circuit board 308, and an adaptive power supply 311 integrated on the surface of the circuit board 308. A limiting assembly for limiting the position of the opening and closing door 202 is installed on the outer side of the smoke exhaust duct body 201.

[0029] It should be noted that the front of the smoke exhaust duct body 201 is provided as an opening, and the front of the smoke exhaust duct body 201 is a bevel. The opening and closing door 202 and the front of the smoke exhaust duct body 201 are attached, and the outer side of the sealing ring 203 and the inner side of the smoke exhaust duct body 201 are attached, so that the sealing ring 203 can seal the connection between the opening and closing door 202 and the smoke exhaust duct body 201. The bevel can allow the opening and closing door 202 to be automatically opened under the action of gravity. Specifically, the distance between the top of the opening and closing door 202 and the front of the building wall 1 is greater than the distance between the bottom of the opening and closing door 202 and the front of the building wall 1.

[0030] In addition, the front of the main electromagnetic block 303 and the front of the secondary electromagnetic block 304 are attached. Specifically, the main electromagnetic block 303 has a magnetic force after being powered on, thereby being able to adsorb and position the secondary electromagnetic block 304. The right side of the device box 305 is provided as an opening, facilitating the installation of the internal structure. The main electromagnetic block 303, the fuse 309, the small controller 310, and the adaptive power supply 311 are located on the same circuit, so that the fuse 309 can cut off the circuit under load, thereby causing the main electromagnetic block 303 to lose the electromagnetic adsorption effect. The adaptive power supply 311 can be an energy storage power supply, which only has the effect of stabilizing current under normal circumstances, and can release the internal stored current when the current needs to be increased, thereby increasing the load of the circuit in an instant, allowing the fuse 309 to have the corresponding effect.

[0031] The limiting assembly in this embodiment is a structure for limiting the opening angle of the opening and closing door 202.

[0032] As Figure 1 and Figure 2As shown, the limiting assembly includes two sliding rods 312 fixed on the left and right sides of the opening and closing door 202 respectively, a limiting sheet 313 fixed on the end of the sliding rod 312 away from the opening and closing door 202, two limiting plates 314 fixed on the left and right sides of the smoke exhaust duct body 201 respectively, and a limiting hole 315 opened on the side of the limiting plate 314 close to the opening and closing door 202.

[0033] It should be noted that the two sliding rods 312 are respectively inserted and slidingly connected to the inner side of the two limiting holes 315, the limiting hole 315 is arc-shaped, and the center of the arc and the hinge point of the opening and closing door 202 are located on the same straight line, the limiting sheet 313 is located on the side of the limiting plate 314 away from the opening and closing door 202, and the diameter of the limiting sheet 313 is greater than the diameter of the sliding rod 312, so that the sliding rod 312 can move together with the opening and closing door 202, and through the arrangement that the center of the arc is located on the same straight line, the sliding rod 312 can normally slide on the inner side of the corresponding limiting hole 315, and the position of the sliding rod 312 can be limited under the action of the limiting sheet 313 to prevent it from escaping from the inner side of the limiting hole 315.

[0034] It should be further noted that, as shown in the figure, Figure 6 The spring supporting piece 4 includes two mounting plates, two connecting frames, and two connecting shells with the top and bottom being open, the corresponding two mounting plates are fixedly installed on the front surface of the opening and closing door 202 and the building wall 1 respectively, the two connecting frames are hingedly connected to the front surface of the top mounting plate through a pin shaft, the side of the connecting frame away from the top mounting plate is hingedly connected to the inner side of the corresponding connecting shell through a pin shaft, the bottom of the two connecting shells is hingedly connected to the front surface of the bottom mounting plate through a pin shaft, and a torsional spring located outside the corresponding pin shaft is fixedly installed between the front surface of the bottom mounting plate and the outer side of the connecting shell, so that the opening and closing door 202 can be elastically supported by the torsional spring, thereby reducing the opening speed during the opening process of the opening and closing door 202 through the elastic deformation of the torsional spring, thereby avoiding the direct downward rotation of the opening and closing door 202, wherein the front surface of the building wall 1 is fixed with an auxiliary strip block for installing the bottom mounting plate, so that the spring supporting piece 4 can be normally installed and fixed.

[0035] The working principle of the above embodiment is as follows:

[0036] When a disaster such as a fire occurs, the smoke rises naturally through the smoke exhaust duct body 201, eventually filling the side of the smoke exhaust duct body 201 close to the opening and closing door 202, and the smoke sensor 307 can sense the smoke, and then the small controller 310 receives the signal and transmits it to the adaptive power supply 311, so that the adaptive power supply 311 delivers excess current in the circuit, causing the fuse 309 to be under load, thereby cutting off the circuit, so that the main electromagnetic block 303 no longer adsorbs and positions the secondary electromagnetic block 304, and under the action of the gravity of the secondary electromagnetic block 304 and the inclined arrangement of the opening and closing door 202, the opening and closing door 202 can be opened downward through the hinge point, so that the sliding rod 312 slides on the inside of the corresponding limiting hole 315, and the limiting hole 315 limits the sliding rod 312, thereby limiting the maximum opening angle of the opening and closing door 202, so that the opening and closing door 202 will not directly collide with the ground, and the opening side of the smoke exhaust duct body 201 can be opened, allowing the smoke to be normally discharged upward.

[0037] Compared with the prior art, the automatically openable fire smoke exhaust duct can be automatically opened according to the actual situation through the cooperation between the smoke exhaust duct body 201, the opening and closing door 202, the automatic opening mechanism 300 and the limiting assembly inside the building wall 1, to achieve the smoke exhaust effect, and also allows the staff to evacuate at the first time when a disaster occurs, improving the evacuation efficiency, thereby avoiding the situation that manual opening of the duct smoke exhaust is easy to cause harm to the body, effectively protecting the personal safety, and also playing an effective sealing role without being opened, so that the automatically openable fire smoke exhaust duct has excellent practicality, solving the problem that the existing fire smoke exhaust duct needs to be manually opened, which is easy to cause certain harm to the body of the operator.

[0038] The electrical components appearing in the text are electrically connected with the main controller and the power supply, and the provision of the power supply is a common knowledge in the art. The main controller can be a PLC controller or other conventional known devices that can control, which can be realized by simple programming of those skilled in the art, and all are existing public power connection technologies, which will not be described herein.

[0039] It should be noted that the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitation, the element defined by the statement "includes a" does not exclude the presence of another identical element in the process, method, article or device including the element.

[0040] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application.

Claims

1. A fire smoke exhaust duct which can be opened automatically, comprising a building wall (1), characterized in that: The building wall (1) is internally fixedly installed with a smoke exhaust duct body (201), the front bottom of the smoke exhaust duct body (201) is hingedly connected with an opening and closing door (202), the back of the opening and closing door (202) is bonded with a sealing ring (203), an automatic opening mechanism (300) is installed between the inner side and the outer side of the smoke exhaust duct body (201), and two spring supports (4) are fixedly installed between the front of the opening and closing door (202) and the front of the building wall (1). The automatic opening mechanism (300) comprises a fixed plate (301) fixed to the inner top wall of the smoke exhaust duct body (201), an extension block (302) fixed to the front of the fixed plate (301), a main electromagnetic block (303) fixedly installed on the front of the extension block (302), a secondary electromagnetic block (304) fixedly installed on the back of the opening and closing door (202), an equipment box (305) fixed to the inner side of the smoke exhaust duct body (201), a box cover (306) detachably connected to the right side of the equipment box (305), a smoke sensor (307) fixedly installed on the outer side of the equipment box (305), a circuit board (308) fixedly installed on the inner side of the equipment box (305), a fuse (309) integrally installed on the surface of the circuit board (308), a small controller (310) integrally installed on the surface of the circuit board (308), and an adaptive power supply (311) integrally installed on the surface of the circuit board (308); and the outer side of the smoke exhaust duct body (201) is provided with a limiting assembly for limiting the position of the opening and closing door (202).

2. A self-opening fire smoke evacuation conduit according to claim 1, wherein: The limiting assembly comprises two sliding rods (312) fixed to the left and right sides of the opening and closing door (202) respectively, limiting sheets (313) fixed to the ends of the sliding rods (312) away from the opening and closing door (202), two limiting plates (314) fixed to the left and right sides of the smoke exhaust duct body (201) respectively, and limiting holes (315) opened in the limiting plates (314) close to the opening and closing door (202); the spring support (4) comprises two mounting plates, two connecting frames, and two connecting shells with the top and the bottom being open, the mounting plates are fixedly installed on the front of the opening and closing door (202) and the front of the building wall (1) respectively, the connecting frames are hingedly connected to the front of the top mounting plate through a pin shaft, the side of the connecting frame away from the top mounting plate is hingedly connected to the inner side of the corresponding connecting shell through a pin shaft, the bottom of the connecting shell is hingedly connected to the front of the bottom mounting plate through a pin shaft, and a torsion spring is fixedly installed between the front of the bottom mounting plate and the outer side of the connecting shell outside the corresponding pin shaft.

3. A self-opening fire smoke venting duct according to claim 2, wherein: The sliding rods (312) are inserted and slidably connected to the inner sides of the limiting holes (315), the limiting holes (315) are arc-shaped, and the center and the hinge point of the opening and closing door (202) are located on the same straight line.

4. The self-opening fire smoke evacuation conduit of claim 2, wherein: The limiting sheet (313) is located on the side of the limiting plate (314) away from the opening and closing door (202), and the diameter of the limiting sheet (313) is larger than that of the sliding rod (312).

5. The self-opening fire smoke evacuation conduit of claim 1, wherein: The front of the smoke exhaust duct body (201) is provided with an opening, and the front of the smoke exhaust duct body (201) is an inclined surface.

6. The self-opening fire smoke evacuation conduit of claim 1, wherein: The opening and closing door (202) and the back and the front of the smoke exhaust duct body (201) are attached, and the outer side of the sealing ring (203) and the inner side of the smoke exhaust duct body (201) are attached.

7. The self-opening fire smoke evacuation conduit of claim 1, wherein: The front of the main electromagnetic block (303) and the front of the auxiliary electromagnetic block (304) are attached, and the main electromagnetic block (303), the fuse (309), the small controller (310) and the adaptive power supply (311) are located on the same circuit.

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