CN108704917B - Fume chamber based on fire source blocks - Google Patents
Fume chamber based on fire source blocks Download PDFInfo
- Publication number
- CN108704917B CN108704917B CN201810317780.0A CN201810317780A CN108704917B CN 108704917 B CN108704917 B CN 108704917B CN 201810317780 A CN201810317780 A CN 201810317780A CN 108704917 B CN108704917 B CN 108704917B
- Authority
- CN
- China
- Prior art keywords
- cabinet body
- air outlet
- petal
- closing device
- driving ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000003517 fume Substances 0.000 title claims abstract description 35
- 230000000903 blocking effect Effects 0.000 claims abstract description 14
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000005341 toughened glass Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
- B08B15/023—Fume cabinets or cupboards, e.g. for laboratories
Landscapes
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The invention provides a fume hood based on fire source blocking, which comprises a hood body, a sliding window, a temperature-sensing fire detector, a controller and a closing device, wherein the hood body is provided with a plurality of air inlets; the side face of the cabinet body is provided with a window, and the top of the cabinet body is provided with an air outlet; the sliding window is arranged at the window and can move up and down relative to the cabinet body; the closing device is arranged at the air outlet and used for opening and closing the air outlet; the temperature-sensing fire detector is arranged in the cabinet body; the controller is electrically connected with the temperature-sensing fire detector and the closing device respectively. The fume hood based on fire source blocking provided by the invention is convenient for cutting off the fire source in time when a fire disaster occurs, so that the safety of the fume hood based on fire source blocking is improved.
Description
Technical Field
The invention relates to the field of laboratory equipment, in particular to a fume hood based on fire source blocking.
Background
Fume hoods are a common device in chemical laboratories. The method can protect the safety of the experimenters when the experimenters perform chemical experiments or prepare solutions and other experiments with high pollution and danger by using volatile reagents. The sliding window of the fume chamber in the prior art generally adopts a toughened glass structure, and the firm toughened glass can prevent the influence on experimental staff when the fume chamber explodes.
The number of fume hoods in a laboratory is usually relatively large and the fume hoods are arranged in rows, and since the fume hoods need to exhaust air, and the exhaust systems in the laboratory are only one, the fume hoods in the rows all share one exhaust system, and the following potential safety hazards exist when the fume hoods are used under the condition: in case of fire and other conditions in any one of the fume hoods in the laboratory, the existing fume hoods cannot cut off fire sources in time, and fire can spread to the adjacent fume hoods through the shared air pipes, so that safety of other experimental staff in the experiment is affected.
Disclosure of Invention
Aiming at the defects in the prior art, the fume hood based on fire source blocking provided by the invention is convenient for cutting off the fire source in time when a fire disaster occurs so as to improve the safety of the fume hood based on fire source blocking.
The invention provides a fume hood based on fire source blocking, which comprises a hood body, a sliding window, a temperature-sensing fire detector, a controller and a closing device, wherein the hood body is provided with a plurality of air inlets; the side face of the cabinet body is provided with a window, and the top of the cabinet body is provided with an air outlet; the sliding window is arranged at the window and can move up and down relative to the cabinet body; the closing device is arranged at the air outlet and used for opening and closing the air outlet; the temperature-sensing fire detector is arranged in the cabinet body; the controller is electrically connected with the temperature-sensing fire detector and the closing device respectively.
Optionally, the closing device comprises a plurality of petal-shaped bodies circumferentially arranged at the air outlet; one end of the petal-shaped body is hinged with the cabinet body, and the other end of the petal-shaped body points to the circle center of the air outlet; the plurality of petal-shaped bodies are mutually abutted, and the air outlet is sealed.
Optionally, the closing device further comprises a drive ring, a connecting rod and a motor; the driving ring is arranged at the top of the cabinet body and is coaxially arranged with the air outlet; the driving ring can rotate on the cabinet body around the axis of the air outlet; two ends of the connecting rod are respectively hinged with the petal-shaped body and the driving ring; the motor is electrically connected with the controller; the power output end of the motor is in transmission connection with the power input end of the driving ring.
Optionally, positioning grooves corresponding to the petal-shaped bodies one by one are formed in the cabinet body along the circumference of the air outlet; the petal-shaped body is triangular; one of the corners of the petal-shaped body points to the center of the air outlet, one of the other two corners is hinged with the cabinet body, and the other corner is embedded into the positioning groove and is in sliding connection with the cabinet body.
Optionally, the closing device further comprises a gear, an elastic piece and a push rod; the top of the cabinet body is provided with an emergency groove extending downwards; the gear is rotatably arranged at the top of the emergency groove and seals the emergency groove; the gear is provided with a through groove which is arranged in a crossing way with the emergency groove; gear teeth are machined on the outer peripheral surface of the driving ring; the driving ring is meshed with the gear through gear teeth; the push rod is slidably arranged in the emergency groove and is abutted against the upper surface of the gear; two ends of the elastic piece are respectively connected with the push rod and the cabinet body; a boss is arranged on the sliding window; the boss is inserted into the emergency groove and is connected with the cabinet body in a sliding way; the boss is located right below the push rod.
Optionally, the elastic member is an extension spring.
According to the technical scheme, the beneficial effects of the invention are as follows: the invention provides a fume hood based on fire source blocking, which comprises a hood body, a sliding window, a temperature-sensing fire detector, a controller and a closing device, wherein the hood body is provided with a plurality of air inlets; the side face of the cabinet body is provided with a window, and the top of the cabinet body is provided with an air outlet; the sliding window is arranged at the window and can move up and down relative to the cabinet body; the closing device is arranged at the air outlet and used for opening and closing the air outlet; the temperature-sensing fire detector is arranged in the cabinet body; the controller is electrically connected with the temperature-sensing fire detector and the closing device respectively. The fume hood based on fire source blocking provided by the invention is convenient for cutting off the fire source in time when a fire disaster occurs, so that the safety of the fume hood based on fire source blocking is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a schematic view of the structure of the closure device;
fig. 4 is a schematic view of the structure when the exhaust port is closed.
Reference numerals:
1-cabinet, 2-sliding window, 3-temperature-sensing fire detector, 4-controller, 5-closing device, 11-window, 12-air outlet, 13-constant head tank, 14-emergency groove, 21-boss, 51-petal body, 52-driving ring, 53-connecting rod, 54-motor, 55-gear, 56-elastic piece, 57-push rod, 551-through groove.
Detailed Description
Embodiments of the technical scheme of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present invention, and thus are merely examples, and are not intended to limit the scope of the present invention.
It is noted that unless otherwise indicated, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains.
In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in fig. 1 are merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the devices or elements being referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, the meaning of "plurality" is two or more unless specifically defined otherwise.
In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
Referring to fig. 1-4, the fume hood based on fire blocking provided in this embodiment includes a hood body 1, a sliding window 2, a temperature-sensing fire detector 3, a controller 4, and a closing device 5; the side surface of the cabinet body 1 is provided with a window 11, and the top of the cabinet body 1 is provided with an air outlet 12; the sliding window 2 is arranged at the window 11, and the sliding window 2 can move up and down relative to the cabinet body 1; the closing device is arranged at the air outlet 12 and is used for opening and closing the air outlet 12; the temperature-sensing fire detector 3 is arranged in the cabinet body 1; the controller 4 is electrically connected with the temperature-sensitive fire detector 3 and the closing device 5 respectively.
In the initial state, the air outlet 12 and the window 11 are both in an open state, and the sliding window 2 is positioned above the cabinet body. When a fire disaster occurs, after the temperature-sensing fire disaster detector 3 detects that a fire source exists in the cabinet body 1, a fire disaster signal is sent out to the controller 4, the controller 4 starts the closing device 5, the closing device 5 closes the air outlet 12, meanwhile, the sliding window 2 slides downwards, and the sliding window 2 seals the window 11. At this time, the cabinet body 1 is closed, and the fire source is closed in the cabinet body. The fume chamber based on the fire source is blocked that this embodiment provided, in time cut off the fire source when being convenient for take place the conflagration, prevent that the fire from spreading adjacent fume chamber along the air exit to improve the security based on the fume chamber that the fire source blocked.
As a further improvement to the above-described solution, the closing device 5 comprises a plurality of petals 51 circumferentially mounted at the exhaust mouth 12; one end of the petal-shaped body 51 is hinged with the cabinet body 1, and the other end of the petal-shaped body points to the circle center of the air outlet 12; the plurality of flap bodies 51 are abutted against each other to seal the air outlet 12. In the initial state, the petal-shaped body 51 is positioned outside the air outlet 12, and the air outlet 12 is in an open state. When a fire occurs, the petal-shaped body 51 is rotated, and the petal-shaped body 51 is rotated toward the side close to the center of the air outlet 12 until one corner of the petal-shaped body 51 is completely directed toward the center of the air outlet 12, and the rotation of the petal-shaped body 51 is stopped. At this time, the plurality of petal-shaped bodies 51 are mutually abutted, the air outlet 12 is sealed, and the blocking of the fire source is completed. The fume chamber based on the fire source is blocked that this embodiment provided is convenient for airtight air exit 12, is convenient for block the fire source.
As a further improvement to the above solution, the closing device 5 further comprises a driving ring 52, a connecting rod 53 and a motor 54; the driving ring 52 is arranged at the top of the cabinet body 1 and is coaxially arranged with the air outlet 12; the driving ring 52 can rotate on the cabinet body 1 around the axis of the air outlet 12; both ends of the connecting rod 53 are respectively hinged with the petal-shaped body 51 and the driving ring 52; the motor 54 is electrically connected with the controller 4; the power output end of the motor 54 is in transmission connection with the power input end of the driving ring 52. When a fire disaster occurs, the controller 4 starts the motor 54, the driving ring 52 rotates under the driving of the motor 54, the connecting rod 53 connected with the driving ring 52 pushes the petal-shaped body 51, the petal-shaped body 51 rotates to the side close to the center of the air outlet 12, the air outlet 12 is sealed, and the fire source is blocked. The fume chamber based on the fire source is blocked that this embodiment provided, is convenient for drive the flap body 51 to rotate.
As a further improvement of the above technical solution, positioning slots 13 corresponding to the petal-shaped bodies 51 one by one are formed on the cabinet body 1 along the circumference of the air outlet 12; the petal-shaped bodies 51 are triangular; one of the corners of the petal-shaped body 51 points to the center of the air outlet 12, one of the other two corners is hinged with the cabinet body 1, and the other corner is embedded into the positioning groove 13 and is in sliding connection with the cabinet body 1. When the petal-shaped body 51 rotates, the petal-shaped body slides along the positioning groove 13, so that the rotation stability of the petal-shaped body 51 is ensured. The fume chamber based on the fire source is blocked that this embodiment provided is convenient for improve the rotatory stationarity of rosette 51.
As a further improvement to the above solution, the closing device 5 further comprises a gear 55, an elastic element 56 and a push rod 57; the top of the cabinet body 1 is provided with an emergency groove 14 extending downwards; the gear 55 is rotatably arranged at the top of the emergency groove 14 and seals the emergency groove 14; the gear 55 is provided with a through groove 551 which is arranged to intersect the emergency groove 14; gear teeth are machined on the outer peripheral surface of the driving ring 52; the driving ring 52 is meshed with the gear 55 through gear teeth; the push rod 57 is slidably installed in the emergency groove 14 and abuts against the upper surface of the gear 55; two ends of the elastic piece 56 are respectively connected with the push rod 57 and the cabinet body 1; a boss 21 is arranged on the sliding window 2; the boss 21 is inserted into the emergency groove 14 and is connected with the cabinet body 1 in a sliding way; the boss 21 is located directly below the push rod 57.
In the initial state, the through groove 551 is disposed to intersect the emergency groove 14. The push rod 57 and the boss 21 are respectively located on the upper and lower sides of the gear 55. When a fire disaster occurs, the driving ring 52 is rotated, the driving ring 52 drives the gear 55 to rotate, and the through groove 551 rotates to be right above the emergency groove 14 and is arranged in parallel with the emergency groove 14 to be communicated with the emergency groove 14. The push rod 57 is separated from the gear 55 by the elastic member 56 and slides downward. The push rod 57 abuts against the upper surface of the boss 21 and pushes the boss 21 to slide downward. The sliding window 2 slides downwards to close the window 11. The fume chamber based on the fire source is blocked that this embodiment provided is convenient for airtight window 11 when airtight air exit.
As a further improvement to the above-described solution, the elastic member 56 is a tension spring. The fume chamber based on the fire source is blocked that this embodiment provided is convenient for drive push rod 57 to slide, simple structure, be convenient for maintain.
In the description of the present invention, numerous specific details are set forth. However, it is understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention, and are intended to be included within the scope of the appended claims and description.
Claims (3)
1. Fume chamber based on fire source blocks, its characterized in that: comprises a cabinet body (1), a sliding window (2), a temperature-sensing fire detector (3), a controller (4) and a closing device (5); the side face of the cabinet body (1) is provided with a window (11), and the top of the cabinet body (1) is provided with an air outlet (12); the sliding window (2) is arranged at the window (11), and the sliding window (2) can move up and down relative to the cabinet body (1); the closing device is arranged at the air outlet (12) and is used for opening and closing the air outlet (12); the temperature-sensing fire detector (3) is arranged in the cabinet body (1); the controller (4) is respectively and electrically connected with the temperature-sensing fire detector (3) and the closing device (5);
the closing device (5) comprises a plurality of petal-shaped bodies (51) which are circumferentially arranged at the air outlet (12); one end of the petal-shaped body (51) is hinged with the cabinet body (1), and the other end of the petal-shaped body points to the center of the air outlet (12); the petal-shaped bodies (51) are mutually abutted, and the air outlet (12) is sealed;
the closing device (5) further comprises a driving ring (52), a connecting rod (53) and a motor (54); the driving ring (52) is arranged at the top of the cabinet body (1) and is coaxially arranged with the air outlet (12); the driving ring (52) can rotate on the cabinet body (1) around the axis of the air outlet (12); both ends of the connecting rod (53) are respectively hinged with the petal-shaped body (51) and the driving ring (52); the motor (54) is electrically connected with the controller (4); the power output end of the motor (54) is in transmission connection with the power input end of the driving ring (52);
the closing device (5) further comprises a gear (55), an elastic piece (56) and a push rod (57); an emergency groove (14) extending downwards is formed in the top of the cabinet body (1); the gear (55) is rotatably arranged at the top of the emergency groove (14) and seals the emergency groove (14); a through groove (551) which is arranged in a crossing way with the emergency groove (14) is formed in the gear (55); gear teeth are machined on the outer peripheral surface of the driving ring (52); the driving ring (52) is meshed with a gear (55) through gear teeth; the push rod (57) is slidably arranged in the emergency groove (14) and is abutted against the upper surface of the gear (55); two ends of the elastic piece (56) are respectively connected with the push rod (57) and the cabinet body (1); a boss (21) is arranged on the sliding window (2); the boss (21) is inserted into the emergency groove (14) and is connected with the cabinet body (1) in a sliding way; the boss (21) is located right below the push rod (57).
2. Fume hood based on fire blocking according to claim 1, characterized in that: positioning grooves (13) which are in one-to-one correspondence with the petal-shaped bodies (51) are formed in the cabinet body (1) along the circumference of the air outlet (12); the petal-shaped body (51) is triangular; one of the angles of the petal-shaped body (51) points to the center of the air outlet (12), one of the other two angles is hinged with the cabinet body (1), and the other angle is embedded into the positioning groove (13) and is in sliding connection with the cabinet body (1).
3. Fume hood based on fire blocking according to claim 1, characterized in that: the elastic member (56) is an extension spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810317780.0A CN108704917B (en) | 2018-04-10 | 2018-04-10 | Fume chamber based on fire source blocks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810317780.0A CN108704917B (en) | 2018-04-10 | 2018-04-10 | Fume chamber based on fire source blocks |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108704917A CN108704917A (en) | 2018-10-26 |
| CN108704917B true CN108704917B (en) | 2024-02-02 |
Family
ID=63867197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810317780.0A Active CN108704917B (en) | 2018-04-10 | 2018-04-10 | Fume chamber based on fire source blocks |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108704917B (en) |
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| CN206658674U (en) * | 2017-04-24 | 2017-11-24 | 杨帅 | A kind of warmhouse booth of automatic temperature controlling |
| CN208245415U (en) * | 2018-04-10 | 2018-12-18 | 重庆市柏涛钢具有限公司 | Vent cabinet |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070264923A1 (en) * | 2006-05-11 | 2007-11-15 | Joan Cesar Galobardes | Protection Device For Air-Flow Cabinets And Air-Flow Cabinet That Contains Said Device |
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2018
- 2018-04-10 CN CN201810317780.0A patent/CN108704917B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200977353Y (en) * | 2006-11-07 | 2007-11-21 | 安薪实业有限公司 | Automatic fire-extinguishing equipment for smoke discharging cabinet |
| CN202015434U (en) * | 2011-03-16 | 2011-10-26 | 张菊良 | Safety electric cabinet |
| CN205392473U (en) * | 2016-03-04 | 2016-07-27 | 江苏埃德伯格电气有限公司 | No pipeline net gas type danger article safe storage cabinet of intelligence |
| CN206082789U (en) * | 2016-08-25 | 2017-04-12 | 新兴铸管股份有限公司 | Breaker ash piece storehouse unloading gate |
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| CN208245415U (en) * | 2018-04-10 | 2018-12-18 | 重庆市柏涛钢具有限公司 | Vent cabinet |
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| Publication number | Publication date |
|---|---|
| CN108704917A (en) | 2018-10-26 |
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