CN216801036U

CN216801036U - Automatic fire extinguishing device for ventilation cabinet

Info

Publication number: CN216801036U
Application number: CN202122702844.9U
Authority: CN
Inventors: 刘南奇
Original assignee: Hunan Shengruida Laboratory Equipment Co ltd
Current assignee: Hunan Shengruida Laboratory Equipment Co ltd
Priority date: 2021-11-07
Filing date: 2021-11-07
Publication date: 2022-06-24
Anticipated expiration: 2031-11-07

Abstract

The utility model relates to an automatic fire extinguishing device of a ventilation cabinet, which comprises an upper cabinet body and a lower cabinet body, wherein the upper cabinet body is correspondingly installed at the upper end of the lower cabinet body, a control panel is embedded into the right side of the front end face of the upper cabinet body, the front ends of the upper cabinet body and the lower cabinet body are respectively hinged with an upper box door and a lower box door, an observation window is arranged on the upper box door, U-shaped pipes are respectively arranged on the left end face and the right end face of the upper cabinet body and the lower cabinet body in a penetrating manner, the upper side and the lower side of the inner side ends of the two U-shaped pipes are respectively provided with a spray head and a connecting pipe in a connecting manner, fire extinguishing steel cylinders are arranged at the bottom ends of the two connecting pipes and are in threaded connection with the fire extinguishing steel cylinders, a regulating rod is rotatably arranged at the bottom end in the lower cabinet body, a rotating ring is arranged at the top end of the regulating rod, a regulating plate is slidably arranged in the lower cabinet body and is in threaded connection with the regulating plate, a temperature sensor is arranged on the inner wall at the rear end of the upper cabinet body, and electric valves are arranged on the two spray heads; the lower cabinet body is designed to be convenient to disassemble and assemble; the design of the baffle and the fireproof plate can improve the fireproof effect.

Description

Automatic fire extinguishing device for fume hood

Technical Field

The utility model relates to the technical field of fume hoods, in particular to an automatic fire extinguishing device for a fume hood.

Background

The fume hood, also called as toxin expelling cabinet, is one of the most common local air exhausting devices in laboratories. As the fume hood is used in a laboratory, various chemicals are often tested in the fume hood, fire disasters can happen in the experimental process, fire-proof equipment is usually attached to the laboratory room, the fire disasters cannot be avoided and timely are not avoided when the fire disasters are not specially matched for use, various high-temperature heating and chemical reaction experimental processes and raw materials are complex, water aqua is not suitable to be adopted, and once a fire disaster happens, the situation is complex and changeable. Current patent for example for 201620608454.1, including the upper cabinet body, the lower cabinet body, window and extinguishing device, though the device has solved among the prior art problem that the untimely test article, fume chamber and the damage of instrument and equipment that causes of putting out a fire, the dismouting of the steel bottle of nevertheless putting out a fire is comparatively troublesome, and the whole fire prevention effect of fume chamber remains to be improved, and easily takes place danger when the conflagration takes place owing to the outage untimely.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides an automatic fire extinguishing device for a fume hood.

In order to achieve the purpose, the utility model provides the following technical scheme: an automatic fire extinguishing device of a fume hood comprises an upper cabinet body and a lower cabinet body, wherein the upper cabinet body is correspondingly installed at the upper end of the lower cabinet body, a control panel is embedded in the right side of the front end face of the upper cabinet body, the front ends of the upper cabinet body and the lower cabinet body are respectively hinged with an upper box door and a lower box door, an observation window is arranged on the upper box door, U-shaped pipes are respectively arranged on the left end face and the right end face of the upper cabinet body and the lower cabinet body in a penetrating manner, the upper side and the lower side of the inner side ends of the two U-shaped pipes are respectively connected with a spray head and a connecting pipe, a fire extinguishing steel cylinder is arranged at the bottom ends of the two connecting pipes, a regulating rod is rotatably arranged at the bottom end in the lower cabinet body, a rotating ring is arranged at the top end of the regulating rod, a regulating plate is arranged in the lower cabinet body in a sliding manner, the regulating rod is in threaded connection with the regulating plate, a temperature sensor is arranged on the inner wall at the rear end of the upper cabinet body, and electric valves are arranged on the two spray heads, two electrically operated valve with temperature sensor all with control panel electric connection.

Preferably, an on-off button is arranged on the left side of the front end face of the upper cabinet body, the on-off button is electrically connected with the control panel, and a protective cover is rotatably arranged at the front end of the upper cabinet body corresponding to the on-off button.

In further preferred, go up cabinet body bottom and run through and be equipped with the sleeve, be equipped with the fan in the sleeve, the sleeve top is equipped with the active carbon screen panel, the inside bottom of sleeve rotates and is equipped with the baffle, the baffle front end is equipped with the connecting rod, the connecting rod extends forward and runs through go up the cabinet body, the connecting rod front end is equipped with the handle.

Preferably, the bottom end of the activated carbon net cover is provided with a plurality of positioning rods, and the top end of the sleeve is provided with positioning holes corresponding to the plurality of positioning rods.

In a further preferred mode, fire-proof plates are arranged on the inner walls of the periphery of the upper cabinet body.

Preferably, the upper end surface of the adjusting plate is provided with mounting grooves corresponding to the two fire extinguishing steel cylinders.

In further preferred, both ends all are equipped with the slider about the regulating plate, all correspond on the inner wall of both ends about the lower cabinet body the spout has been seted up to the slider.

Compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, the fire extinguishing steel cylinder is rotatably connected with the connecting pipe through threads, the rotating ring is grasped after connection is completed, the rotating ring drives the adjusting rod to rotate relative to the lower cabinet body, the adjusting rod is in threaded fit with the adjusting plate, the adjusting plate slides upwards relative to the lower cabinet body, the sliding block slides relative to the sliding groove, stable sliding of the adjusting plate is ensured, the adjusting plate slides to the fire extinguishing steel cylinder, the fire extinguishing steel cylinder and the mounting groove are correspondingly limited, the fire extinguishing steel cylinder is ensured to be stably mounted, and the assembly and disassembly are convenient; the starting and stopping button is designed, when a fire disaster happens, a worker rotates to start the protective cover, and presses the starting and stopping button to realize the power-off of the device, so that the power-on danger is avoided, and the safety is ensured; design baffle and PLASTIC LAMINATED, gripping handle rotate the connecting rod, and the connecting rod drives the baffle and rotates, and the baffle realizes sealing the draft hood, avoids the gas exchange, conveniently puts out a fire, and the fire PLASTIC LAMINATED guarantees the fire control effect of the upper cabinet body, has improved the whole fire control effect of device.

Drawings

FIG. 1 is a schematic view of a preferred overall structure of an automatic fire extinguishing apparatus for a fume hood according to the present invention;

FIG. 2 is a front sectional view of a preferred overall structure of an automatic fire extinguishing apparatus for a fume hood according to the present invention;

FIG. 3 is a side sectional view of a preferred overall construction of an automatic fire suppression system for a fume hood according to the present invention;

fig. 4 is a schematic view of a matching structure of an activated carbon mesh enclosure and a positioning rod of an automatic fire extinguishing device of a fume hood.

In the figure: 1. an upper cabinet body; 2. a lower cabinet body; 3. a control panel; 4. an upper box door; 5. a lower box door; 6. an observation window; 7. A U-shaped pipe; 8. a spray head; 9. a connecting pipe; 10. a fire extinguishing steel cylinder; 11. adjusting a rod; 12. a rotating ring; 13. an adjusting plate; 14. A temperature sensor; 15. an electrically operated valve; 16. a start-stop button; 17. a protective cover; 18. a sleeve; 19. a fan; 20. an active carbon screen; 21. a baffle plate; 22. a connecting rod; 23. a handle; 24. positioning a rod; 25. positioning holes; 26. a fire-proof plate; 27. Mounting grooves; 28. a slider; 29. a chute.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows:

referring to fig. 1-3, an automatic fire extinguishing device for a ventilation cabinet comprises an upper cabinet body 1 and a lower cabinet body 2, wherein the upper cabinet body 1 is correspondingly installed at the upper end of the lower cabinet body 2, a control panel 3 is embedded at the right side of the front end surface of the upper cabinet body 1, the front ends of the upper cabinet body 1 and the lower cabinet body 2 are respectively hinged with an upper cabinet door 4 and a lower cabinet door 5, the upper cabinet door 4 is provided with an observation window 6, the left and right end surfaces of the upper cabinet body 1 and the lower cabinet body 2 are respectively provided with a U-shaped pipe 7 in a penetrating manner, the upper and lower sides of the inner side ends of the two U-shaped pipes 7 are respectively connected with a spray head 8 and a connecting pipe 9, the bottom ends of the two connecting pipes 9 are respectively provided with a fire extinguishing steel cylinder 10, the connecting pipes 9 are in threaded connection with the fire extinguishing steel cylinder 10, the bottom end inside the lower cabinet body 2 is rotatably provided with an adjusting rod 11, the top end of the adjusting rod 11 is provided with a rotating ring 12, an adjusting plate 13 is slidably arranged in the lower cabinet body 2, the adjusting rod 11 is in threaded connection with the adjusting plate 13, the inner wall at the rear end of the upper cabinet body 1 is provided with a temperature sensor 14, all be equipped with electric valve 15 on two shower nozzles 8, two electric valve 15 and temperature sensor 14 all with control panel 3 electric connection.

Referring to fig. 1-4, in this embodiment, a start/stop button 16 is disposed on the left side of the front end surface of the upper cabinet 1, the start/stop button 16 is electrically connected to the control panel 3, a protective cover 17 is rotatably disposed at the front end of the upper cabinet 1 corresponding to the start/stop button 16, a sleeve 18 is disposed at the bottom end of the upper cabinet 1, a fan 19 is disposed in the sleeve 18, an activated carbon mesh enclosure 20 is disposed at the top end of the sleeve 18, a baffle 21 is rotatably disposed at the bottom inside the sleeve 18, a connecting rod 22 is disposed at the front end of the baffle 21, the connecting rod 22 extends forward to penetrate through the upper cabinet 1, a handle 23 is disposed at the front end of the connecting rod 22, a plurality of positioning rods 24 are disposed at the bottom end of the activated carbon mesh enclosure 20, a plurality of positioning rods 24 are disposed in the circumferential direction, the sleeve 18 with the fan 19 facilitates ventilation of the upper cabinet 1, the activated carbon mesh enclosure 20 at the top end of the sleeve 18 realizes filtration and adsorption of exchanged gas, the positioning rods 25 are disposed at the top end of the sleeve 18 corresponding to the plurality of the positioning rods 24, go up cabinet body 1 and all be equipped with PLASTIC LAMINATED 26 on the inner wall all around, the staff rotates and opens protection casing 17, presses on-off button 16, realizes the device outage, and after closing the power, gripping handle 23 rotates connecting rod 22, and connecting rod 22 drives baffle 21 and rotates, and baffle 21 realizes sealing the draft hood.

Referring to fig. 2, in the present embodiment, the upper end of the adjusting plate 13 has mounting grooves 27 corresponding to the two fire-extinguishing steel cylinders 10, the adjusting plate 13 has sliding blocks 28 at both left and right ends, the lower cabinet 2 has sliding grooves 29 corresponding to the sliding blocks 28 on inner walls at both left and right ends, the sliding blocks 28 slide relative to the sliding grooves 29 to ensure stable sliding of the adjusting plate 13, the adjusting plate 13 slides to the fire-extinguishing steel cylinders 10, and the fire-extinguishing steel cylinders 10 are correspondingly limited to the mounting grooves 27.

Example two:

when the fire extinguishing steel cylinder is used, firstly, the fire extinguishing steel cylinder 10 is installed, the fire extinguishing steel cylinder 10 is rotatably connected with the connecting pipe 9 through threads, after the connection is completed, the rotating ring 12 is grasped, the rotating ring 12 drives the adjusting rod 11 to rotate relative to the lower cabinet body 2, the adjusting rod 11 is in threaded fit with the adjusting plate 13, the adjusting plate 13 slides upwards relative to the lower cabinet body 2, the sliding block 28 slides relative to the sliding groove 29, the adjusting plate 13 is ensured to slide stably, the adjusting plate 13 slides to the position of the fire extinguishing steel cylinder 10, the fire extinguishing steel cylinder 10 is correspondingly limited with the mounting groove 27, the fire extinguishing steel cylinder 10 is ensured to be stably installed, the fire extinguishing steel cylinder 10 preferably adopts mixed gas or dry powder extinguishing agent to avoid electric shock of water aqua, chemical and biological agent reaction in water, after the installation is completed, the upper cabinet door 4 of the upper cabinet body 1 is opened, reagent bottles and the like are installed inside the upper cabinet body 1, the upper cabinet door 4 is closed, the control panel 3 is opened, and the control panel 3 is connected with an external power supply, control panel 3 supplies power to interior equipment etc. and the casing 18 that has fan 19 conveniently goes up cabinet body 1 and ventilates, and the active carbon screen panel 20 on casing 18 top realizes filtering the absorption to the gas of exchange, uses for a long time, and active carbon screen panel 20 adsorption effect reduces, changes it, and the active carbon screen panel 20 that will have locating lever 24 corresponds inserts in locating hole 25.

Example three:

during the use, when the internal conflagration that breaks out of cabinet of going up 1, temperature sensor 14 response temperature risees, react to control panel 3, control panel 3 realizes opening electric valve 15, electric valve 15 opens the back and realizes putting out a fire that mix gas in the steel bottle 10 transmits to 8 departments of shower nozzle through connecting pipe 9 and U type pipe 7, spout through shower nozzle 8, put out a fire to the inside realization of the cabinet of going up 1, when the conflagration takes place, the staff rotates and opens protection casing 17, press start-and-stop button 16, realize the device outage, avoid taking place the danger of connecting with the electricity, after the power is turned off, gripping handle 23, rotate connecting rod 22, connecting rod 22 drives baffle 21 and rotates, baffle 21 realizes sealing to the draft hood, avoid gas exchange, conveniently put out a fire, fire prevention board 26 guarantees cabinet of going up 1 fire prevention effect.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An automatic fire extinguishing device of a fume hood comprises an upper cabinet body (1) and a lower cabinet body (2), wherein the upper cabinet body (1) is correspondingly installed at the upper end of the lower cabinet body (2), the automatic fire extinguishing device is characterized in that a control panel (3) is embedded into the right side of the front end face of the upper cabinet body (1), the front ends of the upper cabinet body (1) and the lower cabinet body (2) are respectively hinged with an upper box door (4) and a lower box door (5), an observation window (6) is arranged on the upper box door (4), the left end face and the right end face of the upper cabinet body (1) and the lower cabinet body (2) are respectively provided with a U-shaped pipe (7) in a penetrating manner, the upper side and the lower side of the inner side end of the two U-shaped pipes (7) are respectively provided with a spray nozzle (8) and a connecting pipe (9), the bottom ends of the two connecting pipes (9) are respectively provided with a fire extinguishing steel cylinder (10), the connecting pipe (9) is in threaded connection with the fire extinguishing steel cylinder (10), an adjusting rod (11) is rotatably arranged at the bottom end inside the lower cabinet body (2), adjust pole (11) top and be equipped with swivel becket (12), it is equipped with regulating plate (13) to slide in the lower cabinet body (2), adjust pole (11) and regulating plate (13) threaded connection, be equipped with temperature sensor (14), two on the upper cabinet body (1) rear end inner wall all be equipped with electric valve (15) on shower nozzle (8).

2. An automatic fire extinguishing apparatus for a fume hood according to claim 1, characterized in that: the left side of the front end face of the upper cabinet body (1) is provided with an on-off button (16), the on-off button (16) is electrically connected with the control panel (3), and the front end of the upper cabinet body (1) corresponds to the on-off button (16) and is rotatably provided with a protective cover (17).

3. A fume hood automatic fire extinguishing apparatus according to claim 2, wherein: go up cabinet body (1) bottom and run through and be equipped with sleeve (18), be equipped with fan (19) in sleeve (18), sleeve (18) top is equipped with activated carbon screen panel (20), sleeve (18) inside bottom is rotated and is equipped with baffle (21), baffle (21) front end is equipped with connecting rod (22), connecting rod (22) extend forward and run through go up cabinet body (1), connecting rod (22) front end is equipped with handle (23).

4. A fume hood automatic fire extinguishing apparatus according to claim 3, characterized in that: the bottom end of the activated carbon net cover (20) is provided with a plurality of positioning rods (24), the circumferential direction of the positioning rods (24) is provided with a plurality of positioning holes (25), and the top end of the sleeve (18) corresponds to the plurality of positioning rods (24).

5. A fume hood automatic fire extinguishing apparatus according to claim 3, wherein: the inner walls of the periphery of the upper cabinet body (1) are provided with fireproof plates (26).

6. A fume hood automatic fire extinguishing apparatus according to claim 1, wherein: the upper end surface of the adjusting plate (13) corresponds to the two fire extinguishing steel cylinders (10) and is provided with mounting grooves (27).

7. A fume hood automatic fire extinguishing apparatus according to claim 6, wherein: both ends all are equipped with slider (28) about regulating plate (13), all correspond on the inner wall of both ends about lower cabinet body (2) spout (29) have been seted up in slider (28).