CN110743887A - Fume chamber with automatic lifting cabinet door - Google Patents
Fume chamber with automatic lifting cabinet door Download PDFInfo
- Publication number
- CN110743887A CN110743887A CN201810821427.6A CN201810821427A CN110743887A CN 110743887 A CN110743887 A CN 110743887A CN 201810821427 A CN201810821427 A CN 201810821427A CN 110743887 A CN110743887 A CN 110743887A
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- Prior art keywords
- cabinet door
- cabinet
- door
- cabinet body
- automatic lifting
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- 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
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Abstract
The invention discloses a ventilation cabinet with an automatic lifting cabinet door, which comprises a cabinet body, wherein a storage chamber is arranged at the lower part of the cabinet body, a ventilation device is arranged at the upper part of the cabinet body, an operation chamber is arranged at the middle part of the cabinet body, a movable cabinet door is arranged at one side of the operation chamber, an observation window is arranged on the cabinet door, and the cabinet door is connected with the automatic lifting device positioned at the top of the cabinet body; the automatic lifting device comprises a linkage shaft arranged at the top of the cabinet body, gears are arranged at two ends of the linkage shaft, a transmission chain is arranged between each gear and the other gear positioned on one side of the linkage shaft, one end of each transmission chain is connected with the cabinet door, a balancing weight is arranged on each transmission chain close to the linkage shaft, a driving gear is arranged between the gears on the transmission chains, and the driving gear is fixedly connected with the output end of the clutch motor; be provided with displacement sensor on the balancing weight, displacement sensor all is connected with the controller electricity with clutch motor. The invention realizes the automatic lifting of the cabinet door, and has the advantages of stable control, simple structure, convenient operation, safety and reliability.
Description
Technical Field
The invention relates to a fume hood device, in particular to a fume hood with an automatic lifting cabinet door.
Background
The fume hood is a common local exhaust device in a laboratory, can completely and timely discharge various harmful gases and smoke generated in the experimental process out of a workplace, can prevent an operator from sucking toxic, harmful and peculiar smell gases, and plays a good role in protecting the operator.
Be provided with the operation area on the fume chamber usually, the fan on fume chamber top is discharged harmful gas, and during operating personnel carried out the experiment operation, the positive fume chamber door of fume chamber often need adjust a suitable height, neither hinders the experimenter to observe like this, operate, can protect experimenter's face and upper portion region again. Present ventilation cabinet door automatic rising generally adopts the mode or the button switch of the manual push-and-pull opening ventilation cabinet door of simple from top to bottom to control the motor and just reverse, the mode that adopts manual push-and-pull ventilation cabinet door is when using, often grips laboratory glassware or equipment in the operator's hand, it reaches the purpose of shielding or sealing the experimental space to be difficult to in time push-and-pull window form, consequently, the harmful gas or the splash that produce can bring huge potential safety hazard for the operator in the experiment, button switch controls the motor and just reverses, though can overcome above-mentioned defect, but the start-up and the stop impact of motor are very big, the effect is not good.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides the ventilating cabinet with the automatic lifting cabinet door, which is stable in control, simple in structure, convenient to operate, safe and reliable.
In order to solve the problems, the invention adopts the following technical scheme:
a ventilation cabinet with an automatic lifting cabinet door comprises a cabinet body, wherein a storage chamber is arranged at the lower part of the cabinet body, a ventilation device is arranged at the upper part of the cabinet body, an operation chamber is arranged at the middle part of the cabinet body, a movable cabinet door is installed at one side of the operation chamber, an observation window is installed on the cabinet door, and the cabinet door is connected with the automatic lifting device positioned at the top of the cabinet body;
the automatic lifting device comprises a linkage shaft arranged at the top of the cabinet body, gears are arranged at two ends of the linkage shaft, a transmission chain is arranged between the gear and the other gear positioned on one side of the linkage shaft, one end of the transmission chain is connected with the cabinet door, a balancing weight is arranged on each transmission chain close to the linkage shaft, a driving gear is arranged between the gears on the transmission chains, and the driving gear is fixedly connected with the output end of the clutch motor;
and a displacement sensor is arranged on the balancing weight, and the displacement sensor and the clutch motor are electrically connected with the controller.
In a further technical scheme, the ventilation device comprises an exhaust channel arranged at the top of the cabinet body and an exhaust fan connected with the exhaust channel.
According to the technical scheme, a cabinet door switch button is arranged on one side of the operation chamber and electrically connected with the controller.
In a further technical scheme, the observation window is explosion-proof glass.
In a further technical scheme, a freely opened and closed box door is arranged on the storage chamber.
In a further technical scheme, a sewage storage pool and a water tap are arranged in the operating chamber, and a pipeline communicated with the sewage storage pool is arranged in the storage chamber.
The invention has the following beneficial effects: according to the invention, the controller controls the clutch motor and the position information acquired according to the displacement sensor, so that the starting speed and the moving distance of the cabinet door can be controlled, and the clutch motor is started along with the cabinet door only by slightly lifting, so that the cabinet door can stably reach a specified position; when the door is closed, the door is pulled downwards, and the clutch motor is started to stably reach the lowest position.
Drawings
The invention is described in further detail below with reference to specific embodiments and with reference to the following drawings.
FIG. 1 is a schematic view of a main structure of a fume hood with an automatic lifting door according to the present invention;
wherein the specific reference numerals are as follows: the device comprises a cabinet body 1, a storage chamber 2, an exhaust channel 3, an exhaust fan 4, an operation chamber 5, a cabinet door 6, an observation window 7, a linkage shaft 8, a gear 9, a transmission chain 10, a balancing weight 11, a driving gear 12, a clutch motor 13, a displacement sensor 14, a cabinet door switch button 15, a cabinet door 16, a dirt storage tank 17, a water faucet 18 and a pipeline 19.
Detailed Description
The invention is described in further detail below with reference to specific embodiments and with reference to the following drawings.
Referring to fig. 1, a ventilation cabinet with an automatic lifting cabinet door, comprising a cabinet body 1, a storage chamber 2 is arranged at the lower part of the cabinet body 1, a freely opening and closing cabinet door 16 is arranged on the storage chamber 2, a ventilation device is arranged at the upper part of the cabinet body 1, the ventilation device comprises an exhaust passage 3 arranged at the top of the cabinet body 1 and an exhaust fan 4 connected with the exhaust passage 3, an operation chamber 5 is arranged at the middle part of the cabinet body 1, a movable cabinet door 6 and a cabinet door switch button 15 are arranged at one side of the operation chamber 5, the cabinet door switch button 15 is electrically connected with a controller, the cabinet door switch button 15 is arranged for safety problems and emergency situations, when the controller receives the information of the cabinet door switch button 15, the cabinet door 6 can be kept in an opening or closing state by controlling a clutch motor 13, an observation window 7 is arranged on the cabinet door 6, the observation, a dirt storage pool 17 and a water tap 18 are arranged in the operation chamber 5, and a pipeline 19 communicated with the dirt storage pool 17 is arranged in the storage chamber 2.
The automatic lifting device comprises a linkage shaft 8 arranged at the top of a cabinet body 1, gears 9 are arranged at two ends of the linkage shaft 8, a transmission chain 10 is arranged between the gear 9 and another gear 9 positioned at one side of the gear 9, another gear 9 is fixed at the other side of the linkage shaft 8 through a bearing seat, one end of the transmission chain 10 is connected with a cabinet door 6, a balancing weight 11 is arranged on each transmission chain 10 close to the linkage shaft 8, the balancing weight 11 is arranged on the transmission chain 10 instead of being hung and connected to one side through a steel wire, the stability of the cabinet door 6 in the lifting process can be ensured, a driving gear 12 is arranged between the gears 9 on the transmission chain 10, the driving gear 12 is fixedly connected with the output end of a clutch motor 13, a controller can control the starting and stopping of the clutch motor 13, the gear 9 and the transmission chain 10 form a chain transmission relationship, and the clutch motor 13 drives the transmission, the cabinet door 6 moves upwards or downwards, and the automatic lifting of the cabinet door 6 is realized; be provided with displacement sensor 14 on the balancing weight 11, displacement sensor 14 is connected with the controller electricity, arrives the position of below exactly when cabinet door 6, and when the fume chamber was sheltered from completely, the position of balancing weight 11 was upper limit position this moment, arrived the position of the top exactly when cabinet door 6, and when the fume chamber was opened completely, the position of balancing weight 11 was the lower limit position this moment.
The speed of the clutch motor 13 is controlled through the controller, and the accurate starting speed and moving distance of the control cabinet door 6 are realized through the position information obtained through the displacement sensor 14, and as long as the clutch motor 13 is started slightly, the cabinet door 6 stably reaches a specified position; the same next pulling of closing the door, clutch motor 13 then starts, and when steadily reacing the bottom position, clutch motor 13 can be according to the lower limit position information automatic stop of balancing weight 11, and cabinet door 6 keeps the closed condition, and operating personnel can control the lift of adjustment cabinet door 6 as required one-hand, and the experiment space is in time sealed to the convenience, both is convenient for observe, makes the experimentation safer controllable again, protects operating personnel's personal safety and health status conscientiously.
The present invention has been described in terms of specific examples, which are provided to aid understanding of the invention and are not intended to be limiting. For a person skilled in the art to which the invention pertains, several simple deductions, modifications or substitutions may be made according to the idea of the invention.
Claims (6)
1. A ventilation cabinet with an automatic lifting cabinet door comprises a cabinet body and is characterized in that a storage chamber is arranged at the lower part of the cabinet body, a ventilation device is arranged at the upper part of the cabinet body, an operation chamber is arranged at the middle part of the cabinet body, a movable cabinet door is installed at one side of the operation chamber, an observation window is installed on the cabinet door, and the cabinet door is connected with the automatic lifting device positioned at the top of the cabinet body;
the automatic lifting device comprises a linkage shaft arranged at the top of the cabinet body, gears are arranged at two ends of the linkage shaft, a transmission chain is arranged between the gear and the other gear positioned on one side of the linkage shaft, one end of the transmission chain is connected with the cabinet door, a balancing weight is arranged on each transmission chain close to the linkage shaft, a driving gear is arranged between the gears on the transmission chains, and the driving gear is fixedly connected with the output end of the clutch motor;
and a displacement sensor is arranged on the balancing weight, and the displacement sensor and the clutch motor are electrically connected with the controller.
2. The ventilated hood with the automatically liftable door according to claim 1, wherein the ventilating device comprises an exhaust channel arranged at the top of the hood body and an exhaust fan connected with the exhaust channel.
3. The ventilated hood with the automatically ascending and descending door according to claim 1, wherein a door switch button is arranged on one side of the operation chamber, and the door switch button is electrically connected with the controller.
4. The fumehood with an automatically lifting cabinet door of claim 1 wherein said viewing window is explosion proof glass.
5. The fumehood with automatically liftable doors according to claim 1 wherein said storage compartment is provided with a door that opens and closes freely.
6. The fume hood with automatic lifting cabinet door according to claim 1, wherein a dirt storage tank and a water tap are arranged in the operation chamber, and a pipeline communicated with the dirt storage tank is arranged in the storage chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810821427.6A CN110743887A (en) | 2018-07-24 | 2018-07-24 | Fume chamber with automatic lifting cabinet door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810821427.6A CN110743887A (en) | 2018-07-24 | 2018-07-24 | Fume chamber with automatic lifting cabinet door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110743887A true CN110743887A (en) | 2020-02-04 |
Family
ID=69275513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810821427.6A Pending CN110743887A (en) | 2018-07-24 | 2018-07-24 | Fume chamber with automatic lifting cabinet door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110743887A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4377969A (en) * | 1980-12-08 | 1983-03-29 | Kewaunee Scientific Equipment Corp. | Automatic fume hood airflow control |
| US20060079164A1 (en) * | 2004-09-30 | 2006-04-13 | Decastro Eugene A | Automatic sash safety mechanism |
| CN103978004A (en) * | 2014-04-22 | 2014-08-13 | 北京信高实验室设备有限公司 | Electric ventilating control cabinet |
| CN204386334U (en) * | 2014-12-22 | 2015-06-10 | 江苏佳特美实业有限公司 | Vent cabinet sliding door apparatus for automatically lifting |
| CN104984972A (en) * | 2015-06-29 | 2015-10-21 | 安徽育安实验室装备有限公司 | Fume cupboard for laboratory |
| CN204974672U (en) * | 2015-06-13 | 2016-01-20 | 江苏荣拓实验设备有限公司 | Novel fume hood |
| CN105464504A (en) * | 2015-12-29 | 2016-04-06 | 希美克(广州)实业有限公司 | Door opening and closing balance system for storage cabinet |
| CN207057238U (en) * | 2017-07-17 | 2018-03-02 | 珠海市凯顺自动化科技有限公司 | One kind ventilation cabinet door automatic sensing lowering or hoisting gear |
-
2018
- 2018-07-24 CN CN201810821427.6A patent/CN110743887A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4377969A (en) * | 1980-12-08 | 1983-03-29 | Kewaunee Scientific Equipment Corp. | Automatic fume hood airflow control |
| US20060079164A1 (en) * | 2004-09-30 | 2006-04-13 | Decastro Eugene A | Automatic sash safety mechanism |
| CN103978004A (en) * | 2014-04-22 | 2014-08-13 | 北京信高实验室设备有限公司 | Electric ventilating control cabinet |
| CN204386334U (en) * | 2014-12-22 | 2015-06-10 | 江苏佳特美实业有限公司 | Vent cabinet sliding door apparatus for automatically lifting |
| CN204974672U (en) * | 2015-06-13 | 2016-01-20 | 江苏荣拓实验设备有限公司 | Novel fume hood |
| CN104984972A (en) * | 2015-06-29 | 2015-10-21 | 安徽育安实验室装备有限公司 | Fume cupboard for laboratory |
| CN105464504A (en) * | 2015-12-29 | 2016-04-06 | 希美克(广州)实业有限公司 | Door opening and closing balance system for storage cabinet |
| CN207057238U (en) * | 2017-07-17 | 2018-03-02 | 珠海市凯顺自动化科技有限公司 | One kind ventilation cabinet door automatic sensing lowering or hoisting gear |
Non-Patent Citations (1)
| Title |
|---|
| 王秉铨: "《工业炉设计手册》", 30 June 2000, 机械工业出版社 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200204 |
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| RJ01 | Rejection of invention patent application after publication |