Distributed fire extinguishing device for kitchen flue

Abstract

The invention relates to the technical field of flue fire extinguishing, in particular to a kitchen flue distributed fire extinguishing device which comprises a flue main body, a gas release pipe is arranged at the top of the flue main body, a fire extinguishing mechanism is arranged at the bottom of the flue main body, and a sealing mechanism for conveniently sealing a channel is arranged in the flue main body. And a locking mechanism for conveniently and rapidly unlocking the sealing mechanism to block and prevent fire diffusion is arranged in the flue body, the blocking frame is fixedly connected to the inner wall of the flue body, and the connecting block is fixedly connected to one side of the blocking frame. According to the distributed fire extinguishing device for the kitchen flue, the movable plates and the lock shaft are slidably connected in the sliding groove formed in one side of the sealing plate, the lock shaft is clamped in the lock groove fixedly connected to the top of the inner wall of the flue main body, and meanwhile, the thermosensitive glass column is further fixed between the two movable plates through the fixing sleeve, so that locking of the sealing plate can be quickly relieved.

Description

Technical Field

[0001] The invention relates to the technical field of flue fire extinguishing, in particular to a kitchen flue distributed fire extinguishing device. Background Art

[0002] Large cruise ships have a large number of passengers and catering needs, so they need to be equipped with multiple kitchens distributed on multiple decks. The regulations require that when the kitchen flue containing grease passes through the living quarters, a fixed fire extinguishing system needs to be added for protection. The fire extinguishing media usually include carbon dioxide and clean gas.

[0003] The prior art does not have a structure for rapid closure and rapid fire extinguishing of the flue when in use, so that when a fire occurs in the kitchen flue of an existing cruise ship, most of the fire can only be extinguished by relying on a carbon dioxide fire extinguishing pipeline, and the flue at the point where the fire occurs cannot be closed. In addition, since the flue is wide and long, the concentration of the gas cannot be quickly increased to extinguish the fire and reduce the temperature when it is ejected. Based on the deficiencies of the prior art, the present invention designs a distributed fire extinguishing device for the kitchen flue. Summary of the invention

[0004] The present invention provides a kitchen flue distributed fire extinguishing device, which has the advantages of rapid flue closure and rapid fire extinguishing.

[0005] The present invention provides the following technical solution: a kitchen flue distributed fire extinguishing device, comprising a flue main body, a gas release pipe is arranged on the top of the flue main body, a fire extinguishing mechanism is arranged on the bottom of the flue main body, a closing mechanism is arranged inside the flue main body for facilitating blocking of the passage, and a locking mechanism is arranged inside the flue main body for facilitating quick unlocking of the closing mechanism to block and prevent the spread of fire;

[0006] A closing mechanism, the closing mechanism includes a baffle frame, a connecting block, a sealing plate, a first hinge block, a first rotating head, a guide rod, a second hinge block, a second rotating head, a guide sleeve and a first spring, the baffle frame is fixedly connected to the inner wall of the flue body, the connecting block is fixedly connected to one side of the baffle frame, the sealing plate is rotatably connected to the connecting block, the first hinge block is fixedly connected to one side of the sealing plate, the first rotating head is rotatably connected in the first hinge block, the guide rod is fixedly connected to one end of the first rotating head, the second hinge block is fixedly connected to the top of the inner wall of the flue body, the second rotating head is rotatably connected to the inside of the second hinge block, the guide sleeve is fixedly connected to the second rotating head, and the first spring is arranged inside the guide sleeve.

[0007] As a preferred technical solution of the present invention, the locking mechanism includes a fixed top seat, a lock groove, a side hole, a sliding groove, a limit rod, a second spring, a movable plate, a lock shaft, a fixed sleeve and a thermosensitive glass column. The fixed top seat is fixedly connected to the top of the inner cavity of the flue body, the lock groove is opened on the lower surface of the fixed top seat, the side holes are opened on both sides of the lock groove, the sliding groove is opened on the side of the sealing plate facing the fixed top seat, the limit rod is fixedly connected to the inside of the sliding groove, the second spring is sleeved on the limit rod, the movable plate is slidably connected to the inside of the sliding groove, the lock shaft is fixedly connected to the outside of the movable plate, the fixed sleeve is fixedly connected to the inside of the movable plate, and the thermosensitive glass column is fixedly inserted between the two fixed sleeves.

[0008] As a preferred technical solution of the present invention, the fire extinguishing mechanism includes a bottom box, a fixing frame, a gas cylinder, an air duct, a one-way valve, a valve stem, an auxiliary push arm and a main push arm. The bottom box is fixedly connected to the bottom of the flue main body, the fixing frame is fixedly connected to the bottom of the inner cavity of the bottom box, the gas cylinder is fixedly installed on the fixing frame, the air duct is fixedly connected to one end of the gas cylinder, the one-way valve is fixedly connected through the flue main body and the bottom box, the valve stem is arranged at the top of the one-way valve, one end of the auxiliary push arm is rotatably connected to the top of the valve stem, and one end of the main push arm is rotatably connected to the other end of the auxiliary push arm.

[0009] As a preferred technical solution of the present invention, a support frame is fixedly connected to the upper surface of the flue body.

[0010] As a preferred technical solution of the present invention, a shunt pipe is fixedly connected to the surface of the gas release pipe, and a nozzle is fixedly connected to the bottom of the shunt pipe.

[0011] As a preferred technical solution of the present invention, the gas release tube is fixedly inserted inside the support frame.

[0012] As a preferred technical solution of the present invention, the diverter pipe is fixedly connected to the top of the flue body through the diverter pipe, and the jet nozzle is arranged inside the flue body.

[0013] As a preferred technical solution of the present invention, the main push arm is inserted into the baffle frame through sliding, the other end of the main push arm is in contact with the sealing plate, and one end of the air guide pipe is connected to the one-way valve.

[0014] As a preferred technical solution of the present invention, the guide rod is slidably inserted in the guide sleeve, and the first spring is arranged between the guide sleeve and the guide rod.

[0015] As a preferred technical solution of the present invention, the movable plate is slidably sleeved on the limiting rod, the second spring is arranged between the inner wall of the sliding groove and the movable plate, and the lock shaft is slidably clamped inside the side hole.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The kitchen flue distributed fire extinguishing device, when the fire source in the flue main body burns the thermosensitive glass column or the internal temperature exceeds the maximum value that the thermosensitive glass column can withstand, the thermosensitive glass column will glass out. At this time, the support between the two movable plates is lost, and the two sets of second springs respectively push the two movable plates to move toward each other, so that the lock shaft is withdrawn from the inside of the side hole to release the lock of the sealing plate. After the sealing plate is completely unlocked, the first spring rebounds to push the guide rod out of the inside of the guide sleeve, and then the guide rod, the first rotating head and the first hinged block are used to push the sealing plate to rotate under the limit of the connecting block and fit the baffle frame to quickly close the flue main body. The device is convenient for quickly sealing the flue main body when a fire occurs in the flue main body.

[0018] 2. The kitchen flue distributed fire extinguishing device, after the sealing plate is closed and fitted with the baffle frame, will push the main push arm to move to one side during the closing process of the sealing plate and drive the auxiliary push arm connected to it to move accordingly. At this time, the moving auxiliary push arm will push the valve stem to tilt and open the one-way valve, so that the carbon dioxide gas in the gas cylinder is quickly released from the one-way valve through the air guide pipe to increase the carbon dioxide concentration in the flue main body and reduce the temperature in the flue main body. At the same time, the gas release pipe also uses the diversion pipe and the nozzle to inject carbon dioxide into the flue main body to extinguish the fire. The device is convenient for the auxiliary gas release pipe to extinguish the fire on the flue main body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the flue of the present invention when viewed from above;

[0021] Figure 3 It is a cross-sectional view of the flue and a schematic diagram of the gas release pipe structure of the present invention;

[0022] Figure 4 It is a schematic cross-sectional view of the fire extinguishing mechanism of the present invention;

[0023] Figure 5 It is a schematic diagram of the structure of the closing mechanism of the present invention;

[0024] Figure 6 It is a schematic cross-sectional view of the closing mechanism of the present invention;

[0025] Figure 7 For the present invention Figure 6 A schematic diagram of the structure enlargement in the middle;

[0026] Figure 8 It is a schematic diagram of the explosion structure of the locking mechanism of the present invention.

[0027] In the figure: 1, flue body; 101, support frame; 2, gas release pipe; 201, diverter pipe; 202, jet head; 3, fire extinguishing mechanism; 301, bottom box; 302, fixing frame; 303, gas cylinder; 304, air guide pipe; 305, one-way valve; 306, valve stem; 307, auxiliary push arm; 308, main push arm; 4, closing mechanism; 401, stop frame; 402, connecting block; 403, sealing plate; 404, first hinge Connecting block; 405, first rotating head; 406, guide rod; 407, second hinged block; 408, second rotating head; 409, guide sleeve; 410, first spring; 5, locking mechanism; 501, fixed top seat; 502, locking groove; 503, side hole; 504, sliding groove; 505, limiting rod; 506, second spring; 507, movable plate; 508, locking shaft; 509, fixed sleeve; 510, thermosensitive glass column. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-8 The kitchen flue distributed fire extinguishing device comprises a flue main body 1, a gas release pipe 2 is arranged on the top of the flue main body 1, a fire extinguishing mechanism 3 is arranged on the bottom of the flue main body 1, a closing mechanism 4 for blocking the passage is arranged inside the flue main body 1, a locking mechanism 5 for quickly unlocking the closing mechanism 4 to block and prevent the spread of fire is arranged inside the flue main body 1, and a support frame 101 is fixedly connected to the upper surface of the flue main body 1.

[0030] See also Figure 3 A shunt pipe 201 is fixedly connected to the surface of the gas release pipe 2, a nozzle 202 is fixedly connected to the bottom of the shunt pipe 201, the gas release pipe 2 is fixedly inserted into the inside of the support frame 101, the shunt pipe 201 passes through and is fixedly connected to the top of the flue body 1, and the nozzle 202 is arranged inside the flue body 1.

[0031] See also Figure 5-7, the closing mechanism 4 includes a baffle 401, a connecting block 402, a sealing plate 403, a first hinge block 404, a first rotating head 405, a guide rod 406, a second hinge block 407, a second rotating head 408, a guide sleeve 409 and a first spring 410, the baffle 401 is fixedly connected to the inner wall of the flue body 1, the connecting block 402 is fixedly connected to one side of the baffle 401, the sealing plate 403 is rotatably connected to the connecting block 402, the first hinge block 404 is fixedly connected to one side of the sealing plate 403, and the first rotating head 410 is fixedly connected to the inner wall of the flue body 1. 05 is rotatably connected in the first hinge block 404, the guide rod 406 is fixedly connected to one end of the first rotating head 405, the second hinge block 407 is fixedly connected to the top of the inner wall of the flue body 1, the second rotating head 408 is rotatably connected to the inside of the second hinge block 407, the guide sleeve 409 is fixedly connected to the second rotating head 408, the first spring 410 is arranged inside the guide sleeve 409, the guide rod 406 is slidably inserted inside the guide sleeve 409, and the first spring 410 is arranged between the guide sleeve 409 and the guide rod 406.

[0032] By setting the sealing plate 403, the flue main body 1 can be quickly closed when a fire occurs, which can not only prevent the spread of fire but also improve the effect of carbon dioxide gas fire extinguishing. By setting the first hinge block 404, the first rotating head 405, the guide rod 406, the second hinge block 407, the second rotating head 408, the guide sleeve 409 and the first spring 410, after the locking mechanism 5 unlocks the sealing plate 403, the sealing plate 403 can be pushed to rotate downward quickly to fit the baffle frame 401 to close the flue main body 1, while controlling the fire extinguishing mechanism 3 to quickly extinguish the fire.

[0033] See also Figure 8 The locking mechanism 5 includes a fixed top seat 501, a lock groove 502, a side hole 503, a sliding groove 504, a limiting rod 505, a second spring 506, a movable plate 507, a lock shaft 508, a fixed sleeve 509 and a thermosensitive glass column 510. The fixed top seat 501 is fixedly connected to the top of the inner cavity of the flue body 1, the lock groove 502 is arranged on the lower surface of the fixed top seat 501, the side holes 503 are arranged on both sides of the lock groove 502, the sliding groove 504 is arranged on the side of the sealing plate 403 facing the fixed top seat 501, and the limiting rod 505 is fixedly connected to the sliding Inside the groove 504, the second spring 506 is sleeved on the limit rod 505, the movable plate 507 is slidably connected to the inside of the sliding groove 504, the lock shaft 508 is fixedly connected to the outside of the movable plate 507, the fixed sleeve 509 is fixedly connected to the inner side of the movable plate 507, the thermosensitive glass column 510 is fixedly inserted between the two fixed sleeves 509, the movable plate 507 is slidably sleeved on the limit rod 505, the second spring 506 is set between the inner wall of the sliding groove 504 and the movable plate 507, and the lock shaft 508 is slidably clamped in the inside of the side hole 503.

[0034] The movable plate 507 and the locking shaft 508 are provided to lock the sealing plate 403 to prevent it from sealing the inside of the flue body 1 when no fire occurs. The fixing sleeve 509 and the thermosensitive glass column 510 are provided to support the two movable plates 507 to prevent unlocking while allowing the thermosensitive glass column 510 to quickly break in the event of a fire. The second spring 506 is used to allow the movable plate 507 and the locking shaft 508 to be removed from the side hole 503 to unlock the sealing plate 403 and seal the flue body 1.

[0035] See also Figure 4 The fire extinguishing mechanism 3 includes a bottom box 301, a fixing frame 302, a gas cylinder 303, an air guide pipe 304, a one-way valve 305, a valve stem 306, an auxiliary push arm 307 and a main push arm 308. The bottom box 301 is fixedly connected to the bottom of the flue body 1, the fixing frame 302 is fixedly connected to the bottom of the inner cavity of the bottom box 301, the gas cylinder 303 is fixedly installed on the fixing frame 302, the air guide pipe 304 is fixedly connected to one end of the gas cylinder 303, and the one-way valve 305 It is fixedly connected through the flue main body 1 and the bottom box 301, the valve stem 306 is arranged at the top end of the one-way valve 305, one end of the auxiliary push arm 307 is rotatably connected to the top end of the valve stem 306, one end of the main push arm 308 is rotatably connected to the other end of the auxiliary push arm 307, the main push arm 308 is slidably inserted into the baffle frame 401, the other end of the main push arm 308 is in contact with the sealing plate 403, and one end of the air guide pipe 304 is connected to the one-way valve 305.

[0036] By setting up a gas cylinder 303 and an air guide pipe 304, the gas in the gas cylinder 303 can be sent into the flue body 1. By setting a one-way valve 305, and the opening method of the valve stem 306 at the top of the one-way valve 305 is to toggle on and off, when the sealing plate 403 is closed due to fire, the sealing plate 403 uses the auxiliary push arm 307 and the main push arm 308 to push the top of the valve stem 306 to tilt and open the one-way valve 305 to release carbon dioxide gas for fire extinguishing.

[0037] Working principle, when the kitchen flue distributed fire extinguishing device is used, in the initial state, first, the support frame 101 is set on the top of the flue body 1, and a shunt pipe 201 is installed on the gas release pipe 2 fixed in the support frame 101. The shunt pipe 201 passes through the inner end of the flue body 1 and is fixedly connected with a nozzle 202, so as to facilitate carbon dioxide injection fire extinguishing in the flue body 1, and a gas cylinder 303 is installed in the bottom box 301 set at the bottom of the flue body 1. The gas cylinder 303 is connected to the one-way valve 305 installed in the flue body 1 through the air guide pipe 304. The valve stem 306 set at the top of the one-way valve 305 is connected to the main push arm 308 through the auxiliary push arm 307 and is controlled by the sealing plate 403, so as to push the valve stem 306 after the sealing plate 403 is closed. 6 Open the one-way valve 305 to release the gas to extinguish the fire, and the sealing plate 403 is rotatably connected to one side of the baffle frame 401 through the connecting block 402. The guide rod 406 arranged on one side of the sealing plate 403 is plugged into the guide sleeve 409 arranged on the top of the inner wall of the flue body 1, and a first spring 410 is arranged between the guide rod 406 and the guide sleeve 409, so as to quickly close the flue, and a movable plate 507 and a locking shaft 508 are slidably connected in the sliding groove 504 opened on one side of the sealing plate 403. The locking shaft 508 is clamped in the locking groove 502 fixedly connected to the top of the inner wall of the flue body 1. At the same time, a heat-sensitive glass column 510 is fixed between the two sets of movable plates 507 through the fixing sleeve 509, so as to quickly release the lock of the sealing plate 403;

[0038] When it is necessary to quickly seal the flue main body 1 when a fire occurs in the flue main body 1, first, the fire source in the flue main body 1 burns the thermosensitive glass column 510 or the internal temperature exceeds the maximum value that the thermosensitive glass column 510 can withstand, and the thermosensitive glass column 510 glass-breaks. At this time, the support between the two movable plates 507 is lost, and the two sets of second springs 506 respectively push the two movable plates 507 to move toward each other, so that the locking shaft 508 is withdrawn from the inside of the side hole 503 to release the lock of the sealing plate 403. After the sealing plate 403 is completely unlocked, the first spring 410 rebounds and pushes the guide rod 406 out of the inside of the guide sleeve 409, and then the guide rod 406, the first rotating head 405 and the first hinge block 404 are used to push the sealing plate 403 to rotate under the limit of the connecting block 402 and fit the baffle frame 401 to quickly seal the flue main body 1. This device is convenient for quickly sealing the flue main body 1 when a fire occurs in the flue main body 1.

[0039] When the auxiliary gas release pipe 2 is needed to extinguish the fire in the flue main body 1, first, when the sealing plate 403 is closed and fits with the baffle frame 401, the sealing plate 403 will push the main push arm 308 to move to one side during the closing process and drive the auxiliary push arm 307 connected to it to move accordingly. At this time, the moving auxiliary push arm 307 will push the valve stem 306 to tilt and open the one-way valve 305, so that the carbon dioxide gas in the gas cylinder 303 is quickly released from the one-way valve 305 through the gas guide pipe 304 to increase the carbon dioxide concentration in the flue main body 1 and reduce the temperature in the flue main body 1. At the same time, the gas release pipe 2 also uses the diversion pipe 201 and the nozzle 202 to inject carbon dioxide into the flue main body 1 to extinguish the fire. This device facilitates the auxiliary gas release pipe 2 to extinguish the fire in the flue main body 1.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0041] 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 kitchen flue distributed fire extinguishing device, comprising a flue main body (1), characterized in that: A gas release pipe (2) is arranged at the top of the flue main body (1), a fire extinguishing mechanism (3) is arranged at the bottom of the flue main body (1), a closing mechanism (4) is arranged inside the flue main body (1) for facilitating blocking of the passage, and a locking mechanism (5) is arranged inside the flue main body (1) for facilitating rapid unlocking of the closing mechanism (4) to block and prevent the spread of fire; A closing mechanism (4), the closing mechanism (4) comprising a baffle (401), a connecting block (402), a sealing plate (403), a first hinge block (404), a first rotating head (405), a guide rod (406), a second hinge block (407), a second rotating head (408), a guide sleeve (409) and a first spring (410), the baffle (401) being fixedly connected to the inner wall of the flue body (1), the connecting block (402) being fixedly connected to one side of the baffle (401), the sealing plate (403) being rotatably connected to the connecting block (402), and the first The hinge block (404) is fixedly connected to one side of the sealing plate (403), the first rotating head (405) is rotatably connected inside the first hinge block (404), the guide rod (406) is fixedly connected to one end of the first rotating head (405), the second hinge block (407) is fixedly connected to the top of the inner wall of the flue body (1), the second rotating head (408) is rotatably connected inside the second hinge block (407), the guide sleeve (409) is fixedly connected to the second rotating head (408), and the first spring (410) is arranged inside the guide sleeve (409).

2. The kitchen flue distributed fire extinguishing device according to claim 1, characterized in that: The locking mechanism (5) comprises a fixed top seat (501), a locking groove (502), a side hole (503), a sliding groove (504), a limiting rod (505), a second spring (506), a movable plate (507), a locking shaft (508), a fixing sleeve (509) and a heat-sensitive glass column (510); the fixed top seat (501) is fixedly connected to the top of the inner cavity of the flue body (1); the locking groove (502) is provided on the lower surface of the fixed top seat (501); the side holes (503) are provided on both sides of the locking groove (502); the sliding groove (504) It is opened on the side of the sealing plate (403) facing the fixed top seat (501), the limiting rod (505) is fixedly connected to the inside of the sliding groove (504), the second spring (506) is sleeved on the limiting rod (505), the movable plate (507) is slidably connected to the inside of the sliding groove (504), the locking shaft (508) is fixedly connected to the outside of the movable plate (507), the fixed sleeve (509) is fixedly connected to the inside of the movable plate (507), and the thermosensitive glass column (510) is fixedly inserted between the two fixed sleeves (509).

3. The kitchen flue distributed fire extinguishing device according to claim 1, characterized in that: The fire extinguishing mechanism (3) comprises a bottom box (301), a fixing frame (302), a gas cylinder (303), an air guide pipe (304), a one-way valve (305), a valve stem (306), an auxiliary push arm (307) and a main push arm (308); the bottom box (301) is fixedly connected to the bottom of the flue main body (1); the fixing frame (302) is fixedly connected to the bottom of the inner cavity of the bottom box (301); the gas cylinder (303) is fixedly mounted on the fixing frame (302), the air guide pipe (304) is fixedly connected to one end of the gas cylinder (303), the one-way valve (305) is fixedly connected to the flue main body (1) and the bottom box (301), the valve stem (306) is arranged at the top end of the one-way valve (305), one end of the auxiliary push arm (307) is rotatably connected to the top end of the valve stem (306), and one end of the main push arm (308) is rotatably connected to the other end of the auxiliary push arm (307).

4. The kitchen flue distributed fire extinguishing device according to claim 1, characterized in that: A support frame (101) is fixedly connected to the upper surface of the flue main body (1).

5. The kitchen flue distributed fire extinguishing device according to claim 1, characterized in that: A shunt pipe (201) is fixedly connected to the surface of the gas release pipe (2), and a spray head (202) is fixedly connected to the bottom of the shunt pipe (201).

6. The kitchen flue distributed fire extinguishing device according to claim 1, characterized in that: The gas release tube (2) is fixedly inserted into the interior of the support frame (101).

7. The kitchen flue distributed fire extinguishing device according to claim 5, characterized in that: The diversion pipe (201) passes through and is fixedly connected to the top of the flue body (1), and the nozzle (202) is arranged inside the flue body (1).

8. The kitchen flue distributed fire extinguishing device according to claim 3, characterized in that: The main push arm (308) is inserted into the baffle frame (401) through sliding, the other end of the main push arm (308) is in contact with the sealing plate (403), and one end of the air guide pipe (304) is connected to the one-way valve (305).

9. The kitchen flue distributed fire extinguishing device according to claim 1, characterized in that: The guide rod (406) is slidably inserted into the interior of the guide sleeve (409), and the first spring (410) is arranged between the guide sleeve (409) and the guide rod (406).

10. The kitchen flue distributed fire extinguishing device according to claim 2, characterized in that: The movable plate (507) is slidably sleeved on the limiting rod (505), the second spring (506) is arranged between the inner wall of the sliding groove (504) and the movable plate (507), and the locking shaft (508) is slidably clamped inside the side hole (503).

Images