CN210545249U - Clean workbench - Google Patents
Clean workbench Download PDFInfo
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- CN210545249U CN210545249U CN201921177864.5U CN201921177864U CN210545249U CN 210545249 U CN210545249 U CN 210545249U CN 201921177864 U CN201921177864 U CN 201921177864U CN 210545249 U CN210545249 U CN 210545249U
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- glass door
- microswitch
- fan
- clean bench
- operation cabinet
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Abstract
The utility model discloses a clean bench, include: the operation cabinet is internally provided with a workbench, a fan, a filtering device, a sterilizing lamp and a glass door are arranged above the workbench in the operation cabinet, and the glass door is arranged on the front side of the workbench and can slide up and down; clean bench still includes the controller, is provided with the position sensor who is used for detecting glass door position on the operation cabinet, and the controller is all connected with position sensor, fan and bactericidal lamp electricity. The utility model discloses a glass door position and fan, bactericidal lamp and audible alarm's interlocking control has avoided receiving the bodily injury because of the maloperation leads to the operator, greatly increased the fail safe nature who uses, has solved the problem that the workspace cleanliness factor is low simultaneously, is favorable to prolonging equipment life.
Description
Technical Field
The utility model relates to an experimental apparatus technical field especially relates to a clean bench.
Background
A clean bench is a box-type decontamination apparatus suitable for use in medical institutions that can provide local operating environments with a cleanliness class of ISO5 (hundred) or higher. The method is widely applied to scientific environments and production departments such as biological pharmacy, medicine and health, food, medical science experiments, optical photoelectricity, sterile laboratory experiments, sterile microorganism inspection, plant tissue culture and the like. The clean bench is divided into vertical flow and horizontal flow according to the air flow direction, wherein the principle of the vertical flow clean bench is that air is sucked by a fan and filtered by a high-efficiency filter through a static pressure box. The filtered clean air is sent out in a vertical airflow state, so that the operating area can continuously reach 100-grade cleanliness under the control of the clean air, and a sterile high-clean working environment is formed.
A common clean workbench comprises a cabinet body, a high-efficiency filter, a fan, a working area, a lighting lamp, a sterilizing lamp and the like. To avoid unfiltered air from entering the workspace through the front window access opening, thereby affecting cleanliness within the workspace, glass is provided at the front window access opening to block unfiltered air from entering the workspace. The glass of the existing clean workbench is mostly lifted manually, and the height of the glass can be adjusted randomly. The following problems exist in the practical use process:
1. typically, the germicidal lamp is turned on when the glass is at its lowest point. However, the germicidal lamp is started when the glass is not at the lowest point due to manual misoperation, high-intensity ultraviolet rays directly burn a human body without being blocked by the glass, and blindness can be caused by direct irradiation of eyes in serious cases, so that great potential safety hazards exist. The fan can be started only when the glass is separated from the lowest point, but the fan can be started when the glass is not separated from the lowest point due to manual misoperation, air blown out by the fan is not timely discharged out of the clean area, so that the pressure of the work area is increased, the clean air filtered by the high-efficiency filter is prevented from entering the work area, the fan idles, the service life of the fan is influenced, and airflow can flow backwards from the clean area to enter the static pressure box when the air flow is serious, so that the clean workbench is damaged.
2. Because the height of the glass of the front window operation opening can be adjusted at will, the working position is positioned by visual observation, the positioning precision is low, and the distance between the glass and the working table surface can seriously influence the airflow mode of the clean working table. When the glass is lifted too high, the opening of the front window of the workbench is too large, and uncleaned air outside enters from the opening of the front window, so that the cleanliness of a working area is reduced, and even the requirement of 100 level cannot be met; when glass lifts up and crosses low excessively, workstation front window opening undersize influences the air escape in the workspace, makes workspace pressure increase, hinders the new trend through high efficiency filter filtration and gets into the workspace, makes the interior air turbulence of workspace, reduces the interior cleanliness factor of workspace.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough of prior art, providing a clean bench safe in utilization to solve the problem that prior art leads to because of the work safety nature low of glass location problem.
In order to achieve the above object, the present invention provides a clean bench, which comprises: the operation cabinet is internally provided with a workbench, a fan, a filtering device, a sterilizing lamp and a glass door are arranged above the workbench in the operation cabinet, and the glass door is arranged on the front side of the workbench and can slide up and down;
clean bench still includes the controller, be provided with on the operation cabinet and be used for detecting the position sensor of glass door position, the controller with position sensor the fan reaches the equal electricity of bactericidal lamp is connected.
As a preferred scheme, the position sensor comprises a first microswitch, a second microswitch and a third microswitch which are sequentially arranged from bottom to top;
the glass door can be switched among a closing position, a working position and a highest position by sliding up and down; when the glass door is in the closed position, the bottom edge of the glass door is attached to the upper surface of the workbench, and the first microswitch, the second microswitch and the third microswitch are all in an open state; when the glass door is in the working position, the first microswitch and the second microswitch are in a closed state, and the third microswitch is in an open state; when the glass door is at the highest position, the first microswitch, the second microswitch and the third microswitch are all in a closed state.
Preferably, the height difference between the second microswitch and the third microswitch ranges from 0.5 mm to 10 mm.
Preferably, when the glass door is at the working position, the distance between the bottom edge of the glass door and the upper surface of the workbench ranges from 150 mm to 250mm, and when the glass door is at the highest position, the distance between the bottom edge of the glass door and the upper surface of the workbench ranges from 400mm to 500 mm.
Preferably, a guide device is arranged in the operation cabinet and comprises a guide wheel, a guide cable and a counterweight block, the guide cable bypasses the guide wheel, one end of the guide cable is connected with the glass door, and the counterweight block is connected to the other end of the guide cable and is arranged on the rear side inside the operation cabinet.
Preferably, the guiding device further comprises a first guide rail and a second guide rail which are installed on the operation cabinet, the glass door is guided by matching with the first guide rail, and the counterweight block is guided by matching with the second guide rail.
Preferably, the filtering device includes a primary filter and a high efficiency filter, an air inlet is formed above the operation cabinet, the primary filter is arranged at the air inlet, a static pressure box is arranged below the primary filter, the fan is located in the static pressure box, the air inlet of the fan is opposite to the air outlet of the primary filter, the high efficiency filter is located below the static pressure box, and the air outlet of the fan is opposite to the air inlet of the high efficiency filter.
As a preferred scheme, the operation cabinet is further provided with an audible alarm, and the controller is electrically connected with the audible alarm.
Preferably, a lighting lamp is arranged in the operation cabinet.
Preferably, a handle is arranged on the outer side surface of the glass door.
Compared with the prior art, the beneficial effects of the utility model reside in that: the clean bench provided by the embodiment of the utility model is provided with a position sensor, a controller, a fan and a bactericidal lamp, wherein the position sensor can detect the position information of the glass door, the controller adjusts the switch of the fan, the bactericidal lamp and the sound alarm according to the position signal detected by the position sensor, when the glass door is at the closed position, the bactericidal lamp can be turned on, and the fan cannot be turned on; when the glass door is at the working position and the highest position, the germicidal lamp cannot be started, and the fan can be started; when the fan is in an opening state, when the glass door is not in a working position, the sound alarm gives an alarm; the interlocking control of the glass door position and the fan, the sterilizing lamp and the sound alarm is realized, the situation that an operator is injured due to misoperation is avoided, the use safety and reliability are greatly improved, the problem of low cleanliness of a working area is solved, and the service life of equipment is prolonged.
Drawings
FIG. 1 is a schematic view of the overall structure of a glass door in an operating position according to an embodiment of the present invention;
3 FIG. 3 2 3 is 3 a 3 sectional 3 view 3 taken 3 along 3 line 3 A 3- 3 A 3 of 3 FIG. 3 1 3; 3
FIG. 3 is a schematic view of the overall structure of the glass door according to the embodiment of the present invention at the highest position;
FIG. 4 is a schematic view of the overall structure of the glass door according to the embodiment of the present invention in the closed position;
fig. 5 is a schematic diagram of signal connection according to an embodiment of the present invention.
In the figure, 1, an operation cabinet; 2. a work table; 3. a glass door; 4. a fan; 5. a germicidal lamp; 6. a position sensor; 61. a first microswitch; 62. a second microswitch; 63. a third microswitch; 7. a controller; 8. guiding a cable; 9. a guide wheel; 10. a balancing weight; 11. a first guide rail; 12. a second guide rail; 13. a primary filter; 14. a high efficiency filter; 15. a static pressure box; 16. a caster wheel; 17. a handle; 18. an illuminating lamp; 19. an audible alarm.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", "front", "back", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and simplification of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. It should be understood that the terms "first", "second", etc. are used herein to describe various information, but the information should not be limited to these terms, and these terms are only used to distinguish one type of information from another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention.
As shown in fig. 1 to 5, a preferred embodiment of the present invention provides a clean bench, including: the operation cabinet 1 is internally provided with a workbench 2, a fan 4, a filtering device, a sterilizing lamp 5 and a glass door 3 are arranged above the workbench 2 in the operation cabinet 1, and the glass door 3 is arranged on the front side of the workbench 2 and can slide up and down;
Specifically, the position sensor 6 includes a first microswitch 61, a second microswitch 62 and a third microswitch 63 arranged in this order from bottom to top;
preferably, the glass door 3 can be switched among a closing position, a working position and a highest position by sliding up and down; when the glass door 3 is in a closed position, the bottom edge of the glass door 3 is attached to the upper surface of the workbench 2, and the first microswitch 61, the second microswitch 62 and the third microswitch 63 are all in an open state; when the glass door 3 is in the working position, the first microswitch 61 and the second microswitch 62 are in the closed state, and the third microswitch 63 is in the open state; when the glass door 3 is at the highest position, the first microswitch 61, the second microswitch 62 and the third microswitch 63 are all in a closed state.
Preferably, in this embodiment, the height difference between the second microswitch 62 and the third microswitch 63 is 1mm, when the glass door 3 is in the working position, the first microswitch 61 and the second microswitch 62 are in the closed state, the top edge of the glass door 3 is close to the contact of the third microswitch 63, but not touching the contact of the third microswitch 63, and the third microswitch 63 is in the open state, so that the working position of the glass door 3 can be accurately located by the position sensor 6.
Based on the above technical scheme, provide a clean bench safe in utilization in this embodiment, position sensor 6 detects glass door 3's position and exports position signal to controller 7, controller 7 adjusts the switch of fan 4 and sterilamp 5 according to position signal, when glass door 3 is in the closed position, sterilamp 5 can open, fan 4 can not open, when glass door 3 is in operating position and highest position, sterilamp 5 can not open, fan 4 can open, the interlocking control of glass door 3 position and fan 4 and sterilamp 5 has been realized, avoided leading to the operator to receive bodily injury because of the maloperation, greatly increased the fail safe nature of use.
Illustratively, in this embodiment, the bottom edge of the glass door 3 is 190mm from the upper surface of the work table 2 when the glass door 3 is in the working position, and the bottom edge of the glass door 3 is 450mm from the upper surface of the work table 2 when the glass door 3 is in the uppermost position.
Preferably, be equipped with guider in the operation cabinet 1, guider includes guide pulley 9, fairlead 8 and balancing weight 10, and fairlead 8 walks around guide pulley 9, and glass door 3 is connected to the one end of fairlead 8, and balancing weight 10 is connected in the other end of fairlead 8 and is located the inside rear side of operation cabinet 1.
Preferably, the guiding device further comprises a first guide rail 11 and a second guide rail 12 which are installed on the operation cabinet 1, the glass door 3 is guided by matching with the first guide rail 11, and the counterweight 10 is guided by matching with the second guide rail 12.
The sum of the gravity of the counterweight 10 and the static friction force of the counterweight 10 and the second guide rail 12 is equal to the sum of the gravity of the glass door 3 and the static friction force of the glass door 3 and the first guide rail 11, and the glass door 3 cannot slide in the first guide rail 11 under the condition of no external force. When the glass door 3 is required to move up and down, an upward or downward force is applied by the handle 17, the glass door 3 slides upwards or downwards in the first guide rail 11, and when the external force is stopped, the glass door 3 and the counterweight 10 are in a balanced state again.
Preferably, the filtering device comprises a primary filter 13 and a high-efficiency filter 14, an air inlet is formed above the operation cabinet 1, the primary filter 13 is arranged at the air inlet, a static pressure box 15 is arranged below the primary filter 13, the fan 4 is positioned in the static pressure box 15, the air inlet of the fan 4 is opposite to the air outlet of the primary filter 13, the high-efficiency filter 14 is positioned below the static pressure box 15, and the air outlet of the fan 4 is opposite to the air inlet of the high-efficiency filter 14.
The primary filter 13 has a pre-filtering effect, so that the high-efficiency filter 14 can be better protected, and the uniform wind speed in the operation cabinet 1 can be ensured. The high efficiency filter 14 used in this embodiment has a filtration efficiency of static class 100 according to federal standards in the united states, resulting in high cleanliness in the operator's cabinet 1. The static pressure box 15 is used for balancing the air outlet pressure, so that the air outlet speed is more uniform.
Air is impressed static pressure case 15 by fan 4 after the primary filter 13 gets into operation cabinet 1, send out after high efficiency filter 14 filters again, form clean air current in operation cabinet 1, and the air current is in order to flow through the region that needs the purification in the operation cabinet 1 with even section wind speed, takes away the dust in the operation cabinet 1 to form high clean operational environment.
Preferably, the operation cabinet 1 is further provided with an audible alarm 19, and the controller 7 is electrically connected with the audible alarm 19. After the fan 4 is started, when the glass door 3 is not in the working position, the sound alarm 19 is started.
An illuminating lamp 18 is arranged in the operation cabinet 1, and the illuminating lamp 18 is used for illuminating in the clean workbench 2 during experiments.
The outer side surface of the glass door 3 is provided with a handle 17, so that the position of the glass door 3 can be conveniently adjusted.
The bottom of the operation cabinet 1 is provided with a caster 16 which is convenient to move.
To sum up, the embodiment of the present invention provides a clean bench 2, wherein the position sensor 6 can detect the position information of the glass door 3, the controller 7 adjusts the switches of the fan 4, the germicidal lamp 5 and the audible alarm 19 according to the position signal detected by the position sensor 6, when the glass door 3 is in the closed position, the germicidal lamp 5 can be turned on, the fan 4 can not be turned on, and when the glass door 3 is not in the closed position, the germicidal lamp 5 can not be turned on; the fan 4 can be opened, when the fan 4 is opened and the glass door 3 is not in the working position, the sound alarm 19 starts to alarm; thereby realized 3 positions of glass door and fan 4, bactericidal lamp 5 and 19 interlocking control of audible alarm, the positioning accuracy of glass door 3 is high, has avoided receiving the bodily injury because of the maloperation leads to the operator, greatly increased the fail safe nature of use, has solved the problem that the workspace cleanliness factor is low simultaneously, is favorable to prolonging equipment life.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.
Claims (10)
1. A clean bench, comprising: the operation cabinet is internally provided with a workbench, a fan, a filtering device, a sterilizing lamp and a glass door are arranged above the workbench in the operation cabinet, and the glass door is arranged on the front side of the workbench and can slide up and down;
clean bench still includes the controller, be provided with on the operation cabinet and be used for detecting the position sensor of glass door position, the controller with position sensor the fan reaches the equal electricity of bactericidal lamp is connected.
2. The clean bench of claim 1, wherein the position sensor comprises a first micro switch, a second micro switch, and a third micro switch, which are sequentially arranged from bottom to top;
the glass door can be switched among a closing position, a working position and a highest position by sliding up and down; when the glass door is in the closed position, the bottom edge of the glass door is attached to the upper surface of the workbench, and the first microswitch, the second microswitch and the third microswitch are all in an open state; when the glass door is in the working position, the first microswitch and the second microswitch are in a closed state, and the third microswitch is in an open state; when the glass door is at the highest position, the first microswitch, the second microswitch and the third microswitch are all in a closed state.
3. The clean bench of claim 2, wherein the height difference between the second and third micro-switches ranges from 0.5 to 10 mm.
4. The clean bench of claim 3, wherein the distance between the bottom edge of the glass door and the upper surface of the bench ranges from 150 to 250mm when the glass door is in the working position, and the distance between the bottom edge of the glass door and the upper surface of the bench ranges from 400 to 500mm when the glass door is in the uppermost position.
5. The clean bench as claimed in claim 1, wherein a guide device is provided in the operating cabinet, the guide device comprises a guide wheel, a guide cable and a weight block, the guide cable is wound around the guide wheel, one end of the guide cable is connected to the glass door, and the weight block is connected to the other end of the guide cable and is disposed at the rear side of the interior of the operating cabinet.
6. The clean bench of claim 5, wherein the guide means further comprises a first guide rail and a second guide rail installed to the operation cabinet, the glass door is guided in cooperation with the first guide rail, and the weight block is guided in cooperation with the second guide rail.
7. The clean bench of claim 1, wherein the filter device comprises a primary filter and a high efficiency filter, an air inlet is formed above the operation cabinet, the primary filter is arranged at the air inlet, a static pressure box is arranged below the primary filter, the fan is arranged in the static pressure box, the air inlet of the fan is opposite to the air outlet of the primary filter, the high efficiency filter is arranged below the static pressure box, and the air outlet of the fan is opposite to the air inlet of the high efficiency filter.
8. The clean bench of claim 1, wherein an audible alarm is further provided on the operating cabinet, and the controller is electrically connected to the audible alarm.
9. The clean bench of claim 1, wherein an illumination lamp is provided in the operation cabinet.
10. A clean bench as claimed in any one of claims 1-9, wherein a handle is provided on the outer side of the glass door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921177864.5U CN210545249U (en) | 2019-07-24 | 2019-07-24 | Clean workbench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921177864.5U CN210545249U (en) | 2019-07-24 | 2019-07-24 | Clean workbench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210545249U true CN210545249U (en) | 2020-05-19 |
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ID=70668682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921177864.5U Active CN210545249U (en) | 2019-07-24 | 2019-07-24 | Clean workbench |
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| CN (1) | CN210545249U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112808329A (en) * | 2020-12-31 | 2021-05-18 | 深圳市美日净化科技有限公司 | Clean workbench suitable for various tests |
| CN112871224A (en) * | 2021-03-15 | 2021-06-01 | 海南朗克生物科技有限公司 | Operation isolation system |
| CN112944766A (en) * | 2021-02-06 | 2021-06-11 | 青岛市中心医院 | Special low temperature allotment platform of antibiotic |
-
2019
- 2019-07-24 CN CN201921177864.5U patent/CN210545249U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112808329A (en) * | 2020-12-31 | 2021-05-18 | 深圳市美日净化科技有限公司 | Clean workbench suitable for various tests |
| CN112944766A (en) * | 2021-02-06 | 2021-06-11 | 青岛市中心医院 | Special low temperature allotment platform of antibiotic |
| CN112871224A (en) * | 2021-03-15 | 2021-06-01 | 海南朗克生物科技有限公司 | Operation isolation system |
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