Fire extinguishing fume hood

Abstract

The utility model belongs to the technical field of fume hood equipment, especially relates to a fire extinguishing type fume hood, including fume hood body, the rear side of fume hood body is provided with ventilation pipe, the top of ventilation pipe is provided with the partition subassembly, the top of fume hood body inboard is provided with fire extinguishing spray device, fire extinguishing spray device includes the mounting bracket of L shape design, the mounting bracket of front side is provided with rodless cylinder, the mounting bracket of rear side is provided with the spacing frame of L shape design, the mobile end of rodless cylinder is provided with moving frame, one side of moving frame is provided with the limit wheel, and is placed in the top of mounting bracket of spacing frame inboard, be provided with reciprocating spray subassembly on moving frame. The utility model design is reasonable, simple structure, processing is convenient and can be convenient positioning to the fire position, and carries out fire extinguishing action, effectively improves the fire extinguishing process, reduces the potential safety hazard, fully satisfies the use demand.

Description

Technical Field

[0001] This utility model belongs to the technical field of fume hood equipment, and particularly relates to a fire-extinguishing fume hood. Background Technology

[0002] Laboratory ventilation systems are an indispensable component of laboratory design. To prevent laboratory personnel from inhaling toxic and harmful gases, laboratories should be equipped with good ventilation equipment. Currently, the most commonly used ventilation equipment in laboratories is the fume hood. The most important function of a fume hood is exhaust. In chemical laboratories, various harmful gases, odors, moisture, and flammable, explosive, and corrosive substances are generated during experiments. To protect the safety of users and prevent pollutants from spreading into the laboratory, fume hoods should be used near the source of pollution.

[0003] In existing technologies, fume hoods are often used for various experiments, and unexpected situations may occur during the experiments, such as the burning of experimental equipment or materials. Therefore, fire extinguishers are usually placed outside the fume hood. However, in some special cases, such as when materials burn rapidly, removing the fire extinguisher from the outside before extinguishing the fire may affect the fire extinguishing process, thus failing to achieve the desired rapid fire extinguishing effect, delaying the best fire extinguishing time, and causing more losses. To address this, we provide a fire-extinguishing fume hood that can effectively improve the fire extinguishing process and reduce losses. Utility Model Content

[0004] This utility model addresses the technical problems existing in the fire extinguishing process inside the aforementioned fume hood by proposing a fire-extinguishing fume hood that is reasonably designed, simple in structure, and easy to process. On the one hand, it can isolate the inside of the equipment to prevent damage to the exhaust pipe during combustion; on the other hand, it can easily locate the fire location and carry out fire extinguishing actions, effectively improving the fire extinguishing process, reducing safety hazards, and fully meeting the usage requirements.

[0005] To achieve the above objectives, the present invention adopts a fire-extinguishing fume hood, comprising a fume hood body, a ventilation pipe disposed on the upper rear side of the fume hood body, a partition assembly disposed above the ventilation pipe, a fire-extinguishing sprinkler device disposed on the upper inner side of the fume hood body, the fire-extinguishing sprinkler device comprising an L-shaped mounting frame, a rodless cylinder disposed on the mounting frame located on the front side, a limiting frame disposed on the mounting frame located on the rear side, a moving frame disposed on the moving end of the rodless cylinder, a limiting wheel disposed on one side of the moving frame and positioned above the mounting frame inside the limiting frame, and a reciprocating sprinkler assembly disposed on the moving frame.

[0006] Preferably, the partition assembly includes a support frame, a housing is provided above the support frame, a partition that can be moved and adjusted laterally is provided inside the housing, a drive cylinder is provided on one side of the housing, and a connecting rod is provided at the output end of the drive cylinder and connected to one side of the partition.

[0007] Preferably, the reciprocating spray assembly includes an I-shaped adjusting frame, a support plate on one side of the adjusting frame, and movable wheels at both corners of the adjusting frame, positioned above and below the mounting frame. A spraying mechanism is located below the adjusting frame, a horizontal plate is located above the movable frame, a rotating shaft is located on the horizontal plate, a rotating plate is located below the rotating shaft and rotates synchronously with the rotating shaft, a connecting rod is located on one side of the rotating plate, and a pulley is located below the connecting rod and positioned in the gap between the adjusting frame and the support plate.

[0008] Preferably, the spraying mechanism includes a spray pipe with a concave shape located on the lower front and rear sides of the adjusting frame, a spray head provided on the outer side of the spray pipe, a connector provided on the upper side of the front and rear sides of the adjusting frame, a connecting pipe provided on the upper side of the connector, and the front and rear sides of the adjusting frame are hollow and connected to the connecting pipe and the spray pipe respectively.

[0009] Compared with the prior art, the advantages and positive effects of this utility model are as follows: This utility model provides a fire-extinguishing fume hood. Utilizing an integrated partition component, it ensures smooth ventilation during normal use. In the event of a fire, the partition component activates, narrowing the passageway at the ventilation duct. This reduces the possibility of equipment damage and ensures unobstructed passage, meeting usage requirements. The integrated fire-extinguishing sprinkler system is easily movable and adjustable laterally, allowing for rapid positioning to the fire location. Its reciprocating spray pattern provides comprehensive fire suppression, ensuring thorough extinguishing and meeting usage needs. This device is rationally designed, simple in structure, and easy to manufacture. It serves two purposes: firstly, it isolates the internal structure of the equipment, preventing damage to the exhaust duct during combustion; secondly, it allows for easy location of the fire and initiation of fire-extinguishing actions, effectively improving the fire-extinguishing process, reducing safety hazards, and fully meeting usage requirements. Attached Figure Description

[0010] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a structural schematic diagram of a fire-extinguishing fume hood. Figure 2 This is a front view of the structure of a fire-extinguishing fume hood. Figure 3 This is a schematic diagram of part of the internal structure of a fire-extinguishing fume hood. Figure 4 This is a schematic diagram of a fire sprinkler system. Figure 5 This is a side view of the fire sprinkler system. Figure 6 This is a schematic diagram of the partition structure; In the above figures, 1. Fume hood body; 2. Ventilation duct; 3. Partition assembly; 31. Support frame; 32. Shell; 33. Partition plate; 34. Drive cylinder; 35. Connecting rod; 4. Mounting frame; 5. Rodless cylinder; 6. Limiting frame; 7. Moving frame; 8. Limiting wheel; 9. Reciprocating spray assembly; 91. Adjusting frame; 92. Support plate; 93. Moving wheel; 94. Horizontal plate; 95. Rotating shaft; 96. Rotating plate; 97. Connecting rod; 98. Pulley; 10. Spraying mechanism; 101. Spray pipe; 102. Spray head; 103. Connector; 104. Connecting pipe. Detailed Implementation

[0012] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0013] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0014] Examples, such as Figures 1-6As shown, a fire-extinguishing fume hood includes a fume hood body 1. A ventilation pipe 2 is installed on the upper rear side of the fume hood body 1. The above-mentioned equipment components are conventionally installed in existing fume hoods, and the specifics will not be elaborated further. This embodiment aims to solve the fire extinguishing problem in existing fume hoods. A partition component 3 is installed above the ventilation pipe 2. During normal use, it ensures the smooth operation of ventilation. In the event of a fire, the partition component 3 is activated, especially to narrow the passage at the ventilation pipe 2. On the one hand, it reduces the possibility of equipment damage, and on the other hand, it ensures the unobstructed passage and meets the usage requirements. A fire-extinguishing sprinkler device is installed on the upper inner side of the fume hood body 1. It should be further noted that a cover is installed above the fume hood body at the location where the fire-extinguishing sprinkler device is installed to accommodate it. On the one hand, it improves the rationality of the device's installation, and on the other hand, it protects the device's location. It should be further noted that a keyway is opened in the cover, corresponding to the moving direction of the connecting pipe 104, to ensure convenient water supply and provide a preliminary guarantee for the smooth operation of subsequent sprinkler fire extinguishing. The fire sprinkler system includes an L-shaped mounting frame 4. A rodless cylinder 5 is mounted on the front of the mounting frame 4, and an L-shaped limiting frame 6 is mounted on the rear of the mounting frame 4. A movable frame 7 is mounted on the moving end of the rodless cylinder 5. A limiting wheel 8 is mounted on one side of the movable frame 7 and is positioned above the mounting frame 4 inside the limiting frame 6. Specifically, the movable frame 7 is driven by the rodless cylinder 5, and the limiting wheel 8 is positioned within the limiting frame 6 above the mounting frame 4 to ensure the smooth movement of the movable frame 7 during adjustment. Convenience and smooth operation: When a fire occurs inside the fume hood, the rodless cylinder 5 is controlled to move, causing its moving end to move and drive the moving frame 7 to move and adjust horizontally. In particular, this allows the fire extinguishing sprinkler device to move quickly to the fire point, ensuring the accuracy of the fire extinguishing sprinkler. The moving frame 7 is equipped with a reciprocating sprinkler assembly 9. When the moving frame 7 drives the reciprocating sprinkler assembly 9 to the fire point, the reciprocating moving sprinkler assembly can be used to extinguish the fire from all directions, ensuring the thoroughness of the fire extinguishing and meeting the usage requirements. In the above process: The partition component 3 ensures smooth ventilation during normal use. In the event of a fire, the partition component 3 is activated, particularly narrowing the passageway at the ventilation duct 2. This reduces the possibility of equipment damage and ensures unobstructed passage, meeting usage requirements. The fire sprinkler system is easily movable and adjustable laterally, quickly moving to the fire location. Its reciprocating spray pattern provides comprehensive fire suppression, ensuring thorough extinguishing and meeting usage requirements. This device is rationally designed, simple in structure, and easy to manufacture. It serves two purposes: firstly, it isolates the equipment, preventing damage to the exhaust duct during combustion; secondly, it allows for easy location of the fire and initiation of fire suppression actions, effectively improving the fire suppression process, reducing safety hazards, and fully meeting usage requirements.

[0015] To further improve the rationality of the device setup, the partition assembly 3 includes a support frame 31, with a housing 32 above the support frame 31. A laterally adjustable partition 33 is installed inside the housing 32. A drive cylinder 34 is located on one side of the housing 32, and a connecting rod 35 is installed at the output end of the drive cylinder 34, connecting to one side of the partition 33. Specifically, the partition 33 has a large through-hole adapted to the ventilation duct 2. During normal use, the large through-hole of the partition 33 corresponds to the ventilation duct 2, ensuring the performance of the fume hood. Alternatively, the partition 33 can be installed using the plate itself, meaning that by controlling the operation of the drive cylinder 34 and using the connecting rod 35 as the driving force, the partition 33 is moved away from the ventilation duct 2, achieving isolation and preventing excessive fire damage to the ventilation duct 2. Another method to mitigate damage is to have multiple small through holes (not shown in the figure) on the partition 33 located on one side of the large through hole, which are adapted to the diameter range of the large through hole and arranged in a circular shape. When a fire occurs, the control cylinder 34 is activated, driving the partition 33 to move and aligning the positions of the small through holes with the ventilation pipe 2. This design reduces the exhaust volume during the fire process, thereby reducing the possibility of equipment damage, and also facilitates the discharge of smoke generated during the fire process. In this embodiment, the latter is preferred, as it can reduce equipment damage and ensure the discharge of smoke, reducing environmental pollution. In other words, the partition component 3 does not completely block the ventilation pipe 2, but only reduces its passage to a certain extent. While ensuring ventilation, it can also reduce the possibility of equipment damage and meet the usage requirements.

[0016] To improve the functionality of the equipment, especially to provide comprehensive spray extinguishing for fires inside the cabinet, the reciprocating spray assembly 9 includes an I-shaped adjusting frame 91. A support plate 92 is provided on one side of the adjusting frame 91, and casters 93 are located at both corners of the adjusting frame 91, positioned above and below the mounting frame 4. A spray mechanism 10 is located below the adjusting frame 91. A horizontal plate 94 is located above the moving frame 7, and a rotating shaft 95 is mounted on the horizontal plate 94. A rotating plate 96 is located below the rotating shaft 95 and is connected to the rotating shaft. The rotating shaft 95 rotates synchronously. A connecting rod 97 is provided on one side of the rotating plate 96, and a pulley 98 is provided below the connecting rod 97, positioned in the gap between the adjusting frame 91 and the support plate 92. A motor is installed above the horizontal plate 94, which drives the rotating shaft 95 to rotate. When the rotating shaft 95 rotates, it drives the rotating plate 96 to rotate together, acting on the connecting rod 97. The connecting rod 97 and the pulley 98 act between the adjusting frame 91 and the support plate 92 as the rotating plate 96 rotates, thereby causing the adjusting frame 91 to move. On the other hand, the pulley 98... Wheel 98 can slide between support plate 92 and adjusting frame 91, ensuring smooth movement of the adjusting frame 91. As rotating plate 96 continues to rotate, adjusting frame 91 will reciprocate linearly in the horizontal direction, driving spray mechanism 10 to reciprocate and ensure the spray range. Specifically, the reciprocating spray assembly 9 can reciprocate laterally. When the moving frame 7 moves to the appropriate position, the rotating shaft 95 is controlled to rotate, so that its rotation acts on rotating plate 96 and connecting rod 97, thereby driving pulley. 98 rotates horizontally, further acting between the adjusting frame 91 and the support plate 92. The pulley 98 can move within it, thus converting the circumferential rotation of the former into the horizontal movement of the adjusting frame 91. When spraying fire extinguishing operations are carried out, its reciprocating movement adjustment can ensure the fire extinguishing range. Compared with the large fire extinguishing range in the prior art, the fire extinguishing position in this embodiment is more accurate, and the fire extinguishing process can use a reciprocating spraying method on the fire point to ensure the thoroughness of fire extinguishing, prevent its spread, and meet the usage requirements.

[0017] To ensure the successful completion of fire extinguishing operations, the sprinkler mechanism 10 includes a concave sprinkler pipe 101 located below the front and rear sides of the adjusting frame 91. Sprinkler heads 102 are mounted on the outer side of the sprinkler pipe 101. Connectors 103 are located above the front and rear sides of the adjusting frame 91, and connecting pipes 104 are located above the connectors 103. The front and rear sides of the adjusting frame 91 are hollow and connected to the connecting pipes 104 and the sprinkler pipes 101, respectively. Specifically, the hollow design of the front and rear rods of the adjusting frame 91 is used to accommodate the fire extinguishing water source delivered through the connecting pipes 104. In other words, the connecting pipes 104 are connected to an external water source. During firefighting operations, the supplied water is delivered to the front and rear sides of the regulating frame 91 via connector 103 and enters the sprinkler pipe 101. Finally, it is discharged through the sprinkler head 102. As the sprinkler head 102 moves back and forth, it provides comprehensive fire extinguishing for the burning materials inside the cabinet, ensuring the progress of the work. It should be further noted that there are three sprinkler pipes 101 in this embodiment, and the two ends of each sprinkler pipe 101 are connected to the two sides of the regulating frame 91 to ensure convenient discharge of the water source. At the same time, during use, water can be simultaneously introduced into both sides of the regulating frame 91 and quickly fill the sprinkler pipe 101 to ensure the smooth progress of the firefighting work.

[0018] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A fire-extinguishing fume hood, comprising a fume hood body, wherein a ventilation duct is provided on the upper rear side of the fume hood body, characterized in that, A partition assembly is provided above the ventilation duct, and a fire extinguishing sprinkler device is provided above the inner side of the fume hood. The fire extinguishing sprinkler device includes an L-shaped mounting bracket. A rodless cylinder is provided on the mounting bracket located on the front side, and a limiting bracket with an L-shaped design is provided on the mounting bracket located on the rear side. A moving bracket is provided at the moving end of the rodless cylinder. A limiting wheel is provided on one side of the moving bracket, and it is positioned above the mounting bracket inside the limiting bracket. A reciprocating sprinkler assembly is provided on the moving bracket.

2. The fire-extinguishing fume hood according to claim 1, characterized in that, The partition assembly includes a support frame, a housing is provided above the support frame, a partition that can be moved and adjusted laterally is provided inside the housing, a drive cylinder is provided on one side of the housing, and a connecting rod is provided at the output end of the drive cylinder and connected to one side of the partition.

3. A fire-extinguishing fume hood according to claim 2, characterized in that, The reciprocating spray assembly includes an I-shaped adjusting frame. A support plate is provided on one side of the adjusting frame, and movable wheels are provided at both corners of the adjusting frame and positioned above and below the mounting frame. A spraying mechanism is provided below the adjusting frame, and a horizontal plate is provided above the movable frame. A rotating shaft is provided on the horizontal plate, and a rotating plate is provided below the rotating shaft and rotates synchronously with the rotating shaft. A connecting rod is provided on one side of the rotating plate, and a pulley is provided below the connecting rod and positioned in the gap between the adjusting frame and the support plate.

4. A fire-extinguishing fume hood according to claim 3, characterized in that, The spraying mechanism includes a spray pipe with a concave shape located on the lower front and rear sides of the adjusting frame. Spray heads are provided on the outer side of the spray pipe. Connectors are provided on the upper sides of the front and rear sides of the adjusting frame. Connecting pipes are provided above the connecting pipes. The front and rear sides of the adjusting frame are hollow and are respectively connected to the connecting pipes and the spray pipes.

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