CN220599666U - Clean room door crack governing system - Google Patents
Clean room door crack governing system Download PDFInfo
- Publication number
- CN220599666U CN220599666U CN202320083170.5U CN202320083170U CN220599666U CN 220599666 U CN220599666 U CN 220599666U CN 202320083170 U CN202320083170 U CN 202320083170U CN 220599666 U CN220599666 U CN 220599666U
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- door
- clean
- crack
- lift
- door frame
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- 230000006698 induction Effects 0.000 claims abstract description 20
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000000741 silica gel Substances 0.000 claims abstract description 14
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 8
- 230000009471 action Effects 0.000 claims abstract description 4
- 230000005674 electromagnetic induction Effects 0.000 claims abstract 4
- 238000009423 ventilation Methods 0.000 abstract description 2
- 238000004140 cleaning Methods 0.000 description 12
- 238000010408 sweeping Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 230000001939 inductive effect Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 241001417527 Pempheridae Species 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 239000012945 sealing adhesive Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Ventilation (AREA)
Abstract
The utility model relates to the technical field of clean ventilation, in particular to a clean room door gap adjusting system. The utility model provides a toilet door crack governing system, includes door frame, door frame cooperation clean door that opens and shuts, its characterized in that, clean door side is provided with magnetic induction piece, the corresponding position of door frame is provided with electromagnetic induction ware, electromagnetic induction ware and controller electric connection, the door frame bottom is provided with lift adjusting device, and lift adjusting device drives the action of lift axle, be provided with the silica gel strip of paper used for sealing on the lift axle, be provided with buried door slot between the door frame, lift axle downside for the lift in-process submergence ground, lift adjusting device links to each other with the controller. Compared with a conventional clean door crack device with a mechanical structure, the door crack device has more stable performance, can completely recover the door crack to the same state after opening and closing the door each time, and can not cause the unstable airtight state of the door crack after opening and closing the door for many times.
Description
Technical Field
The utility model relates to the technical field of clean ventilation, in particular to a clean room door gap adjusting system.
Background
For clean plants serving biological medicine, electronic semiconductors and precision instrument manufacturing, the accuracy of pressure difference control between clean rooms is very important, and the control of the pressure difference directly relates to the maintenance of cleanliness of clean areas and influences the production safety of medicines and the product quality of electronic semiconductors and precision instruments. The pressure difference control is not only related to the air flow control (air supply quantity, air return quantity and air exhaust quantity control) of the clean room, but also the air tightness of the clean door between rooms has a significant influence on the pressure difference between rooms under the condition that the air flow organization is stable. The small gap change in the clean door can result in a large change in the amount of differential air passing through the clean door, which in turn can result in a large change in the differential pressure across the door. Therefore, the airtight stability of the cleaning door installed in the cleaning area is important.
The gap between the clean door and the door frame and the ground determines the air tightness of the clean door and the air quantity passing through the pressure difference between the clean doors. For the clean door, the gap between the door leaf and the door frame is easy to control, and the sealing rubber strip is treated in place, but the air tightness between the door leaf and the ground is difficult to ensure. As shown in fig. 1, the conventional scheme of the clean room clean door is to increase the air tightness by adding a door gap device (a lifting sweeping bar is arranged at the bottom of a door leaf) with a mechanical structure at the bottom edge of the door. The lifting sweeping bar is actually a sealing adhesive tape with a clamping structure and a metal frame body at the bottom, and two sides of the sweeping bar are provided with a mechanical sensitive sensing device which can rapidly identify the open and close states of the door body (the door can be extruded when closed); once the cleaning door is closed, the lifting sweeping bar can pop up downwards, and the sealing rubber strip at the bottom of the sweeping bar can cling to the ground to prevent the air at the bottom of the door leaf from flowing. The door crack device with the mechanical structure as shown in fig. 1 has the advantages that the sealing rubber strip on the bottom metal frame body adopts a clamping groove mode, the smooth running process of the sweeping bar popping up is required to be ensured, and the durability can be ensured only by the corresponding structure and the elastic sheet being excessively closed. In the actual use process, the mechanical sensitive sensing devices on the two sides of the sweeping bar are required to be manually arranged in place, so that the sweeping bar can be ensured to pop up downwards when the clean door is closed, but in many cases, the sweeping bar can not be put down when the clean door is closed due to manual misoperation; in addition, after the door opening and closing action of the clean room, the falling state of the sweeping floor strip of the mechanical door crack device is unstable, and the size of a gap between the sealing rubber strip at the bottom of the sweeping floor strip and the ground is unstable.
Disclosure of Invention
The utility model provides a clean room door gap adjusting system for solving the problems. In order to achieve the above purpose, the utility model adopts the following technical scheme:
the clean room door seam adjusting system comprises a door frame and a clean door matched with the door frame for opening and closing, and is characterized in that a magnetic induction sheet is arranged on the side face of the clean door, an electromagnetic inductor is arranged at the corresponding position of the door frame, the magnetic induction sheet and the electromagnetic inductor are guaranteed to be just in corresponding contact when the clean door is closed, the electromagnetic inductor is electrically connected with a controller, when the clean door is closed, the magnetic induction sheet and the electromagnetic inductor are in inductive contact, and the electromagnetic inductor transmits a signal for closing the clean door to the controller; when the cleaning door is opened, no induction exists between the magnetic induction sheet and the electromagnetic inductor, and the electromagnetic inductor transmits a signal for opening the cleaning door to the controller. The lifting mechanism is characterized in that a lifting adjusting device is arranged at the bottom of the door frame, the lifting adjusting device drives a lifting shaft to act, a silica gel seal is arranged on the lifting shaft, buried door slots are formed between the door frames and at the lower side of the lifting shaft and used for sinking into the ground in the lifting process of the lifting shaft, and the driving motor is connected with the controller.
Further, the lifting adjusting device comprises a driving motor, lifting rails respectively arranged at two sides of the bottom of the door frame, racks matched with the lifting rails and capable of being in sliding connection, and lifting shafts connected to the bottoms of the racks at two sides.
Further, the lower side of the lifting shaft is connected with a door slot device, and the lifting shaft falls down to enable the rear door slot device to be inserted into the buried door slot.
Furthermore, the silica gel seal is of a hollow structure, completely wraps the lifting shaft, and connects and fixes the lifting shaft and the door crack device.
Further, the controller is electrically connected with a PLC (programmable logic controller) equipped in an air conditioner automatic control system of the clean area or directly connected with an upper computer equipped in equipment management of the clean area; the controller receives signals of the electromagnetic sensor, so that the driving and lifting device of the system is controlled to realize automatic opening and closing of the door gap, and meanwhile, the opening and closing states of the door gap are fed back to the air conditioner automatic control system or the upper computer for remote display; the controller can also receive the instruction sent by the air conditioner automatic control system or the upper computer, and further control the driving and lifting device of the system, and adjust the opening and closing of the door gap.
The technical scheme of the utility model has the following beneficial effects: first, for clean door crack ware (sweep bar) of conventional mechanical structure, the clean room automatic door crack governing system performance of this application is more stable, can make the door crack resume the same state completely after every turn switch door, can not appear the unstable condition of door crack airtight state after the switch door many times. Secondly, in the technical scheme of this application door seam adjusting device mainly installs ground and underground around door frame and door frame, and the design requirement to clean door is not high. The remote control and maintenance of the door gap adjusting device are convenient, the maintenance cost is reduced, the misoperation rate is reduced,
drawings
Fig. 1 is a view showing a conventional floor strip installed at a door bottom.
FIG. 2 is a schematic structural diagram of an embodiment of the present utility model.
101 is a pop-up sweeper, 102 is a door, and 103 is a sealing rubber strip.
Detailed Description
The technical scheme of the utility model is further explained below with reference to the accompanying drawings.
As shown in fig. 1, a clean room door gap adjusting system mainly comprises a controller, an induction system, a driving and lifting adjusting device, a door gap device, a sealing device thereof and the like, and related components are installed on the side edge of a clean door 11, a wall body, a door frame 10 and below the horizontal line flush with the door frame, and the clean door gap adjusting system has the functions of automatic adjustment, remote control and display.
The control function of the clean room door gap adjusting system is realized by a controller 1, and the controller 1 is electrically connected with a PLC (programmable logic controller) equipped by an air conditioner automatic control system of a clean area or is directly connected with an upper computer equipped by equipment management of the clean area; the controller 1 receives signals of the induction system, so that the driving and lifting device of the system is controlled to realize automatic opening and closing of the door gap, and meanwhile, the opening and closing states of the door gap are fed back to the air conditioner automatic control system or an upper computer for remote display; the controller 1 can also receive instructions sent by an air conditioner automatic control system or an upper computer, so as to control a driving and lifting device of the system and adjust the opening, closing and specific position (opening degree) of the door gap.
The induction system of the automatic door seam adjusting system of the clean room comprises a magnetic induction sheet 2 and an electromagnetic inductor 3; the magnetic induction sheet 2 is fixedly arranged at the side edge of the clean door, and the electromagnetic inductor 3 is arranged in a door frame corresponding to the position of the magnetic induction sheet 2, so that the magnetic induction sheet 2 and the electromagnetic inductor 3 are ensured to be just in corresponding contact when the clean door is closed; the electromagnetic inductor 3 is electrically connected with the controller 1, when the cleaning door is closed, the magnetic induction sheet 2 is in inductive contact with the electromagnetic inductor 3, and the electromagnetic inductor 3 transmits a cleaning door closing signal to the controller 1; when the cleaning door is opened, no induction exists between the magnetic induction sheet 2 and the electromagnetic inductor 3, and the electromagnetic inductor 3 transmits a cleaning door opening signal to the controller 1.
The lifting adjusting device 5 of the automatic door gap adjusting system of the clean room comprises a driving motor 4, lifting rails 12 respectively arranged on two sides of the bottom of the door frame, racks 13 matched with the lifting rails and slidably connected, and lifting shafts connected to the bottoms of the racks 13 on two sides.
The driving motor 4 is arranged at the bottom of the door frame on the same side as the electromagnetic sensor 3, the driving motor 4 is provided with a potentiometer, the driving motor 4 is electrically connected with the controller 1, and the output end of the driving motor 4 is matched and connected with one side rack of the lifting adjusting device; the lifting track 12 is arranged on two sides of the bottom of the clean door frame 10, the rack 13 is slidably connected with the lifting track 12, the driving motor 4 receives the instruction sent by the controller 1 and drives the rack 13 to lift, so that the position of the lifting shaft 6 is adjusted, and further the door gap device and the sealing device thereof are adjusted.
The door gap device of the automatic door gap adjusting system of the clean room and the sealing device thereof comprise a door gap device 7, a silica gel seal 8 and a buried door gap groove 9; the buried door slot 9 is arranged below the horizon under the bottom edge of the clean door when the clean door is closed and is horizontally aligned with the bottom edge of the clean door when the clean door is closed, the length of the buried door slot 9 is the same as that of the bottom edge of the clean door, the buried depth of the buried door slot 9 is consistent with that of the door slot device 7, and the buried door slot 9 is made of stainless steel; the door crack device 7 is an aluminum metal strip and is arranged in the buried door crack groove 9, and a silica gel seal 8 is fixed at the top edge of the door crack device; the silica gel seal 8 is of a hollow structure, completely wraps the lifting shaft 6, and connects and fixes the lifting shaft 6 and the door crack device 7; when the motor 4 drives the lifting adjusting device 5 to adjust the position of the lifting shaft 6, the position of the door crack device 7 is also adjusted along with the position of the lifting shaft, and when the silica gel seal 8 is in full contact with the bottom of the cleaning door, the door crack device 7 is in a full closed state; when the lifting shaft 6 descends to the lowest, the door crack device 7 completely enters the buried door crack groove 9, the silica gel sealing strip 8 just descends to the horizontal line position, and the clean room door is in a door crack completely-opened state.
According to the technical scheme, automatic control and remote control can be realized, so that the working modes of the automatic door gap adjusting system of the clean room are divided into an automatic mode and a remote control mode.
The automatic mode of operation is that when the clean door is closed, the magnetic induction sheet 2 is in inductive contact with the electromagnetic inductor 3, the electromagnetic inductor 3 transmits a signal for closing the clean door to the controller 1, the controller 1 immediately controls the driving motor 4 to act, the driving motor 4 drives the rack to continuously lift the position of the lifting shaft 6, the lifting shaft 6 drives the door gap device 7 and the silica gel seal 8 on the top of the door gap device 7 to rapidly lift until the door gap device 7 is lifted from the buried door gap groove 9 below the horizon to the silica gel seal 8 completely approaches the bottom edge of the clean door, at the moment, the blocking force of the lifting adjusting device 5 can not move upwards any more, the driving motor 4 stops running, the potentiometer carried by the driving motor 4 can record the total running angle value of the driving motor 4 in the lifting adjusting device 5 lifting process, the controller 1 receives the signal for stopping the driving motor 4, and then the controller 1 transmits the information that the door gap device 7 is completely closed to an air conditioner automatic control system or an upper computer for displaying; when the cleaning door is opened, the magnetic induction sheet 2 and the electromagnetic inductor 3 do not have mutual induction, the electromagnetic inductor 3 transmits a signal for opening the cleaning door to the controller 1, the controller 1 immediately controls the driving motor 4 to act, the driving motor 4 drives the rack to rapidly lower the position of the lifting shaft 6, the lifting shaft 6 drives the door gap device 7 and the silica gel seal 8 at the top of the door gap device to rapidly descend until the door gap device 7 completely enters the buried door gap groove 9 below the horizon, at the moment, the blocking force of the lifting adjusting device 5 can not move downwards any more, the driving motor 4 stops running after receiving the resistance feedback of the lifting adjusting device 5, the potentiometer of the driving motor 4 can record the total running angle value of the motor 4 in the whole descending process of the lifting adjusting device 5, the controller 1 receives the signal for stopping the operation of the motor 4, and then the controller 1 transmits the information that the door gap device 7 is completely opened to an air conditioner automatic control system or an upper computer for displaying.
The remote control mode is implemented only when the clean door is in a closed state, and the automatic clean room door seam adjusting system still operates in an automatic mode when the clean door is opened; when the clean door is closed, a remote control mode can be operated, an opening value (0% -100%) of a door gap is set through an air conditioner automatic control system or an upper computer, the opening of the corresponding door gap is 100% when the door gap device 7 completely enters the buried door gap groove 9, and the opening of the corresponding door gap is 0% when the silica gel seal 8 at the top of the door gap device 7 completely approaches the bottom of the clean door; the controller 1 receives a door gap opening value remotely set by an air conditioner automatic control system or an upper computer, then the driving motor 4 acts, the action amplitude of the driving motor 4 is recorded by a potentiometer of the driving motor 4, and the total operation adjusting angle of the potentiometer is matched with the door gap opening value remotely set; the driving motor 4 drives the lifting adjusting device 5 and the lifting shaft 6 to move, and the door gap device 7 stays at the corresponding height according to the opening set value, so that the opening adjustment of the remote door gap is completed; in the remote control mode, a manager of the clean room can adjust the opening of the door gap of the clean door according to the pressure difference information of the current clean room, actively adjust the pressure difference air quantity passing through two sides of the clean door, and further actively control the pressure difference of the clean room.
In summary, compared with the conventional clean door crack device with a mechanical structure, the door crack device with the mechanical structure has more stable performance, can completely recover the door crack to the same state after opening and closing the door each time, and can not cause the unstable airtight state of the door crack after opening and closing the door for many times. Compared with a clean door crack device with a conventional mechanical structure, the technical scheme of the door crack device is convenient for remote connection and automatic control, can remotely display the opening and closing states of the door crack, can reduce the manual maintenance workload in the maintenance process of a clean room, and is beneficial to the stability of the environment of a clean area; under the remote mode, the accurate setting and adjustment of the opening value of the door gap can be carried out, and then the opening of the door gap can be actively adjusted according to the pressure difference requirement of the clean room, the air flow passing through the two sides of the clean door is controlled, and the active control of the pressure difference of the clean room is realized.
Claims (5)
1. The utility model provides a toilet door crack governing system, includes door frame, the clean door that door frame cooperation was opened and shut, its characterized in that, clean door side is provided with magnetic induction piece, the corresponding position of door frame is provided with electromagnetic induction ware, electromagnetic induction ware and controller electric connection, the door frame bottom is provided with lift adjusting device, and lift adjusting device drives the action of lift axle, be provided with the silica gel strip of paper used for sealing on the lift axle, be provided with buried door crack groove between the door frame, lift axle downside for the lift in-process is sunk ground, lift adjusting device links to each other with the controller, the lift axle downside is connected with the door crack ware, and the lift axle falls back door crack ware and inserts buried door crack groove.
2. The clean room door seam adjustment system of claim 1, wherein: the lifting adjusting device comprises a driving motor, lifting rails respectively arranged on two sides of the bottom of the door frame, racks matched with the lifting rails and slidably connected with the lifting rails, the upper end of one side of the rack is meshed with the driving motor, and lifting shafts are connected to the bottoms of the racks on two sides.
3. The clean room door seam adjustment system of claim 1, wherein: the silica gel seal is of a hollow structure, completely wraps the lifting shaft, and connects and fixes the lifting shaft and the door crack device.
4. The clean room door seam adjustment system of claim 1, wherein: the controller is electrically connected with a PLC (programmable logic controller) provided by an air conditioner automatic control system of the clean area.
5. The clean room door seam adjustment system of claim 1, wherein: the controller is connected with an upper computer equipped for clean area equipment management.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320083170.5U CN220599666U (en) | 2023-01-28 | 2023-01-28 | Clean room door crack governing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320083170.5U CN220599666U (en) | 2023-01-28 | 2023-01-28 | Clean room door crack governing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220599666U true CN220599666U (en) | 2024-03-15 |
Family
ID=90167494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320083170.5U Active CN220599666U (en) | 2023-01-28 | 2023-01-28 | Clean room door crack governing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220599666U (en) |
-
2023
- 2023-01-28 CN CN202320083170.5U patent/CN220599666U/en active Active
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| GR01 | Patent grant |