CN115254864B - Laboratory fume chamber - Google Patents
Laboratory fume chamber Download PDFInfo
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- CN115254864B CN115254864B CN202211029580.8A CN202211029580A CN115254864B CN 115254864 B CN115254864 B CN 115254864B CN 202211029580 A CN202211029580 A CN 202211029580A CN 115254864 B CN115254864 B CN 115254864B
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- cabinet body
- processing module
- detection module
- air
- liquid level
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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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- Devices For Use In Laboratory Experiments (AREA)
Abstract
The application relates to a laboratory fume hood, and relates to the technical field of fume hoods. The cabinet body is internally provided with a placing plate, the placing plate is provided with a test tube rack, the cabinet body is provided with an exhaust fan, the bottom of the cabinet body is provided with a pushing cylinder, the bottom of the pushing cylinder is provided with a pushing rod, one end of the pushing rod, far away from the pushing cylinder, is provided with an adsorption disc, and an air pump is arranged on the adsorption disc and used for pumping air in the adsorption disc when the adsorption disc adsorbs. When the exhaust fan in the laboratory fume hood is started to exhaust the gas in the cabinet body, the air cylinder can be pushed to drive the adsorption disc to abut against the floor of the laboratory, and then the air in the adsorption disc is absorbed by the air pump, so that the adsorption disc is adsorbed on the floor.
Description
Technical Field
The application relates to the field of fume hoods, in particular to a laboratory fume hood.
Background
The laboratory is the place where the experiment is performed. The laboratory is a scientific cradle, is a base for scientific research, is a source of scientific development, and plays a very important role in the scientific development. Laboratories can be categorized into three categories by attribution: the first is a laboratory subordinate to or hosted by university; the second type of laboratory belongs to national institutions, some even international institutions; the third class of laboratories belongs directly to the industrial enterprise sector, serving the development and research of industrial technologies.
The fume hood is a type of local exhaust equipment commonly used in laboratories, and can completely and timely exhaust harmful gases out of workplaces, so that operators can be prevented from inhaling toxic, harmful and peculiar smell gases, and the fume hood has a good protection effect on the operators. The fume hood is usually provided with a zone, an operator performs experiments in a working zone, and a fan at the top end of the fume hood discharges harmful gas.
At present, the air in the cabinet is exchanged in the mode of installing the exhaust fan on the cabinet body in part of the laboratory fume hood, and when the exhaust fan rotates, the cabinet body is easy to vibrate due to the direct placement mode of the cabinet body, so that some chemical solutions in the laboratory fume hood shake, and the storage of the chemical solutions is not facilitated, so that the laboratory fume hood needs to be improved.
Disclosure of Invention
In order to solve the problem that a laboratory fume hood in the related art is easy to shake in the process of rotating an exhaust fan so that chemical solutions are inconvenient to store, the application provides the laboratory fume hood.
The laboratory fume hood provided by the application adopts the following technical scheme:
the utility model provides a laboratory fume chamber, includes the cabinet body, the internal board that places that is provided with of cabinet, place and be provided with the test-tube rack on the board, be provided with the exhaust fan on the cabinet body, cabinet body bottom is provided with the promotion cylinder, it is provided with the catch bar to promote the cylinder bottom, the one end that the catch bar kept away from the promotion cylinder is provided with the adsorption disc, be provided with the aspiration pump on the adsorption disc, the aspiration pump is used for carrying out the extraction to the air in the adsorption disc when the adsorption disc adsorbs.
Through the technical scheme, when the laboratory fume hood is used, when the exhaust fan is started to exhaust gas in the cabinet body, the air cylinder can be pushed to drive the adsorption disc to be abutted against the floor of the laboratory, then the air in the adsorption disc is absorbed through the air pump, the adsorption disc is adsorbed on the floor of the laboratory, when the exhaust fan blows, the cabinet body is adsorbed by the adsorption disc, the stability of the cabinet body is higher, and compared with the case that the cabinet body is directly placed on the floor of the laboratory, the shaking amplitude of the cabinet body is smaller, so that the safety of storing chemical reagents in the cabinet body is improved.
Optionally, the cabinet body bottom is provided with the movable pulley, movable pulley top rotates and is connected with the sliding screw, cabinet body bottom is provided with the driving motor who is used for driving the sliding screw to go up and down.
Through adopting the technical scheme, the laboratory fume hood can be freely moved through the structure of the sliding wheel, compared with the manual carrying cabinet body, the convenience in decoration of the interior of the laboratory is improved, and the sliding wheel can be stored at any time through the structure of the driving motor and the sliding screw rod, so that the adsorption of the adsorption disc at the bottom of the cabinet body is completed, and the overall stability of the cabinet body is improved.
Optionally, the device comprises an amplitude detection module and a processing module;
the amplitude detection module is arranged on the cabinet body and is used for detecting the vibration amplitude of the cabinet body, and is coupled with the processing module and sends an amplitude signal into the processing module;
the processing module is arranged on the cabinet body and is coupled with the rotating motor, the air pump and the pushing air cylinder, and the processing module is used for driving the rotating motor to rotate, the air pump to pump air, the exhaust fan to rotate and the pushing air cylinder to push the pushing rod.
Through adopting above-mentioned technical scheme, the amplitude detection module can be through sending the amplitude signal to processing module in order to feed back the vibration condition of laboratory fume chamber cabinet body, and operating personnel can set for the amplitude threshold value through processing module, if the vibration amplitude of the cabinet body has exceeded the vibration threshold value of predetermineeing, then processing module drive promotes the cylinder and promotes the adsorption disc to extract the air in the adsorption disc through the aspiration pump, in order to promote the stability of the cabinet body.
Optionally, a pressure detection module is arranged at the bottom of the test tube rack and is coupled with the processing module;
the pressure detection module is used for detecting the pressure received by the bottom of the test tube rack, sending a pressure signal into the processing module, and the processing module adjusts the power of the exhaust fan based on the pressure signal.
Through adopting above-mentioned technical scheme, through carrying out the acquisition of pressure to the test-tube rack bottom, then can acquire the number of test tube of placing on the test-tube rack, the test tube places the number more, then the reagent that the instruction cabinet is internal is more, and the internal stronger ventilation effect that needs of cabinet this moment, then the power of processing module increase exhaust fan to realize the enhancement of ventilation effect in the fume chamber.
Optionally, the ventilation hole has been seted up at cabinet body top, the cover is equipped with the ventilation pipe on the ventilation hole, the one end that the cabinet body was kept away from to the ventilation pipe is provided with the condensate plate, cabinet body top is provided with the condensation box, the condensation box is located the ventilation pipe, condensation box top opening, the condensation box sets up in the condensate plate below.
Through adopting above-mentioned technical scheme, when carrying out ventilation treatment to the gas in the laboratory fume chamber, then partial harmful gas can be mingled with vapor in the air in order to realize liquefaction on the condensate plate, and flow into the condensation box to make the air that contains chemical reagent difficult escape to the air in, make partial poisonous or high pollution chemical reagent be difficult for polluting surrounding air because of ventilation, promoted the feature of environmental protection of system.
Optionally, two condensing plates are provided, a pair of condensing plates are obliquely arranged, the highest positions of the condensing plates are connected, and the connecting positions of the condensing plates are located above the condensing holes.
Through adopting above-mentioned technical scheme, a pair of condensing plate slope sets up makes vapor mix with after poisonous and harmful gas liquefaction, can slide to the condensing box along the condensing plate in, has reduced the liquid after the condensation and has dripped back the possibility of the cabinet body from the ventilation hole, has promoted the internal neatness of cabinet.
Optionally, a liquid level detection module is arranged on the inner side wall of the condensing box, and an alarm module is arranged on the side wall of the cabinet body;
the liquid level detection module is coupled with the processing module and is used for detecting the liquid level in the condensing box, and the liquid level detection module sends a liquid level detection signal to the processing module;
the alarm module is coupled with the processing module and is used for alarming.
Through adopting above-mentioned technical scheme, liquid level detection module can carry out real-time feedback to the volume of the liquid of collecting in the condensing tank, and liquid level detection module is through sending liquid level detection signal to processing module, and operating personnel presets the liquid level threshold through processing module, and when liquid level detection signal that liquid level detection module sent exceeded the liquid level threshold, then report to the police through alarm signal to remind the operator to retrieve the clearance to the liquid in the condensing tank, reduced the possibility that the liquid flows out the pollution cabinet body after the condensing tank is full.
Optionally, the mounting groove has been seted up at cabinet body top, the ventilation pipe bottom is provided with the installation arris, the installation arris is inserted and is located in the mounting groove.
Through adopting above-mentioned technical scheme, the structure of mounting groove and installation arris for the ventilation pipe can be dismantled with the cabinet body and be connected, so when operating personnel need clear up the condensing box, only need remove the ventilation pipe, make the installation arris follow the mounting groove and remove, then can realize the dismantlement of ventilation pipe, can clear up the liquid in the condensing box afterwards, promoted the convenience of operating personnel when the clearance condensing box.
Optionally, the installation arris bottom is provided with fixed magnet, be provided with on the diapire of mounting groove and link up the magnet, fixed magnet and link up the magnet magnetism and inhale mutually.
Through adopting above-mentioned technical scheme, fixed magnet and linking magnet's structure makes the installation arris insert and is difficult for producing when locating the mounting groove and drop to make the ventilation pipe be difficult for droing from cabinet body top, increased the stability of ventilation pipe when the installation.
Optionally, be provided with the sealing ring on the lateral wall of mounting groove, the sealing ring sets up with the laminating of cabinet body top.
Through adopting above-mentioned technical scheme, the seal ring's structure makes the installation arris insert when locating in the mounting groove seal better, has reduced the possibility that the escape of gas in the ventilation pipe leads to outside air pollution.
In summary, the present application includes at least one of the following beneficial effects:
1. when the exhaust fan is started to exhaust the gas in the cabinet body, the exhaust fan drives the adsorption disc to be abutted against the ground of the laboratory, and then the gas in the adsorption disc is absorbed by the air pump, so that the adsorption disc is adsorbed on the ground of the laboratory, and when the exhaust fan blows, the cabinet body is adsorbed by the adsorption disc, so that the stability of the cabinet body is higher, and compared with the case that the cabinet body is directly placed on the ground of the laboratory, the shaking amplitude of the cabinet body is smaller, thereby improving the safety of chemical reagent storage in the cabinet body;
2. the structure of the sliding wheel and the rotating motor is adopted, the laboratory fume hood can be freely moved through the structure of the sliding wheel, compared with a manual carrying cabinet body, the convenience in decoration of the interior of the laboratory is improved, and the sliding wheel can be stored at any time through the structure of the rotating motor and the rotating screw rod, so that the adsorption of the adsorption disc at the bottom of the cabinet body is completed, and the overall stability of the cabinet body is improved;
3. the liquid level detection module is capable of feeding back the volume of liquid collected in the condensing box in real time, the liquid level detection module is capable of sending liquid level detection signals to the processing module, an operator presets a liquid level threshold value through the processing module, when the liquid level detection signals sent by the liquid level detection module exceed the liquid level threshold value, the operator is warned through the warning signals, so that the operator is reminded of recovering and cleaning the liquid in the condensing box, and the possibility that the liquid flows out of a pollution cabinet body after the condensing box is fully loaded is reduced.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present application;
FIG. 2 is a schematic diagram of a structure for representing a connection relationship between a cabinet and a placement board in an embodiment of the present application;
FIG. 3 is an enlarged schematic view of portion A of FIG. 2;
FIG. 4 is an enlarged schematic view of portion B of FIG. 2;
FIG. 5 is a schematic diagram of a structure for representing the connection relationship between a cabinet and a vent hole in an embodiment of the application;
fig. 6 is a schematic diagram of module connection according to an embodiment of the application.
In the figure: 1. a cabinet body; 11. placing a plate; 12. a test tube rack; 13. an exhaust fan; 14. a pushing cylinder; 15. a push rod; 16. an adsorption plate; 161. a hard disk body; 162. a rubber disc ring; 17. an air extracting pump; 2. a sliding wheel; 21. a sliding screw rod; 22. a driving motor; 3. an amplitude detection module; 31. a processing module; 4. a pressure detection module; 5. a vent hole; 51. a ventilation pipe; 52. a condensing plate; 53. a condensing box; 54. a liquid level detection module; 55. an alarm module; 61. a fixed magnet; 62. a connecting magnet; 7. a seal ring; 8. a cabinet door; 81. an observation plate; 82. ventilation holes; 9. a mounting groove; 91. mounting ribs; 92. a guide plate; 93. a leakage hole; 94. and a gas leakage baffle.
Detailed Description
The application is described in further detail below with reference to fig. 1-6.
The embodiment of the application discloses a laboratory fume hood. Referring to fig. 1 and 2, a laboratory fume hood includes a cabinet body 1, the cabinet body 1 is a cuboid structure, a cabinet door 8 is provided on a side wall of the cabinet body 1, an observation board 81 for observing the interior of the cabinet body 1 is provided on the cabinet door 8, and the observation board 81 is made of glass materials. A placing plate 11 is fixedly welded on the inner side wall of the cabinet body 1, a plurality of ventilation holes are formed in the placing plate 11 in a penetrating mode along the vertical direction, and a test tube rack 12 is arranged at the top of the placing plate 11. The exhaust fan 13 is installed to cabinet body 1 bottom, and exhaust fan 13 during operation, the air current moves towards directly over, has run through along vertical direction on the cabinet body 1 top lateral wall and has offered ventilation hole 5, and ventilation hole 5 is located the position directly over exhaust fan 13.
Referring to fig. 2, four driving motors 22 are installed at the inner side of the bottom of the cabinet body 1, a sliding screw 21 is installed at the output end of the driving motor 22, the driving motor 22 drives the sliding screw 21 to slide in the vertical direction, a sliding wheel 2 is installed at one end, far away from the driving motor 22, of the sliding screw 21, and when the driving motor 22 drives the sliding screw 21 to stretch, an operator can change the position of the cabinet body 1 by pushing the cabinet body 1, so that convenience when the cabinet body 1 needs to be installed is improved.
Referring to fig. 2 and 3, the bottom of the cabinet 1 is provided with the push cylinder 14, the output end of the push cylinder 14 is provided with the push rod 15, the push rod 15 is vertically arranged with the bottom wall of the cabinet 1, one end of the push rod 15 far away from the push cylinder 14 is provided with the adsorption disc 16, the adsorption disc 16 comprises a hard disc body and a rubber disc ring 162 adhesively fixed on the side wall of the hard disc body 161, the outer side wall of the hard disc body is provided with the air pump 17, when the push cylinder 14 drives the push rod 15 to abut the hard disc body 161 and the rubber disc ring 162 on the ground of a laboratory, redundant air in the hard disc body 161 and the rubber disc ring 162 can be extracted through the air pump 17, so that the pressure outside the hard disc body 161 and the rubber disc ring 162 is greater than the pressure inside, and the hard disc body 161 and the rubber disc ring 162 are attached to the ground under the action of atmospheric pressure, and the stability of the cabinet 1 is improved.
Referring to fig. 2 and 4, a mounting groove 9 is formed in the top of the cabinet body 1 along the vertical direction, a connecting magnet 62 is fixed on the side wall of the bottom of the mounting groove 9 in an adhesive manner, a mounting edge 91 is inserted into the mounting groove 9, a fixed magnet 61 is fixed on the side wall, close to the connecting magnet 62, of the mounting edge 91 in an adhesive manner, and the fixed magnet 61 and the connecting magnet 62 are attracted in a magnetic manner; the vent pipe 51 is welded and fixed to a side wall of the mounting rib 91 on a side away from the fixed magnet 61. A condensing plate 52 is adhesively fixed at one end of the ventilating pipe 51 away from the mounting edge 91; the condensing plate 52 is made of glass, the interior of the condensing plate 52 is hollow, and condensate for reducing the temperature of the condensing plate 52 is stored in the condensing plate 52.
Referring to fig. 2 and 5, the condensing plates 52 are provided in a pair, one side wall of the condensing plate 52 close to the ventilation pipe 51 is adhesively fixed to the ventilation pipe 51, and one side wall of the condensing plate 52 far from the ventilation pipe 51 is adhesively fixed to the other condensing plate 52. A guide plate 92 is welded and fixed to the inner side wall of the ventilating duct 51, and the guide plate 92 is located right below the condensing plate 52. The condensing box 53 has been placed at cabinet body 1 top, and condensing box 53 is open-top's box structure, has seted up the gas leakage hole 93 along vertical direction in the condensing box 53, and gas leakage hole 93 and ventilation hole 5 intercommunication set up, welded fastening has gas leakage baffle 94 on the inside wall of gas leakage hole to store the liquid of collecting in the condensing box 53.
Referring to fig. 2 and 6, a laboratory fume hood includes an amplitude detection module 3, a processing module 31, a pressure detection module 4, and a liquid level detection module 54. The amplitude detection module 3 is mounted on the fume hood cabinet body 1, is coupled with the processing module 31, and is used for measuring the amplitude of the cabinet body 1 and sending an amplitude signal to the processing module 31; the processing module 31 is selected as a CPU, an operator can set an amplitude threshold in the processing module 31 according to the reagent storage condition in the fume hood, and when the amplitude detection module 3 detects that the amplitude of the cabinet body 1 is greater than a preset amplitude threshold, a signal is sent to the processing module 31, and the processing module 31 drives the pushing cylinder 14 and the air pump 17 to stabilize the cabinet body 1.
The pressure detection module 4 is installed in the bottom of the test tube rack 12, and the pressure detection module 4 is coupled with the processing module 31, when test tubes are placed on the test tube rack 12, the pressure detection module 4 detects corresponding pressure, namely, the corresponding position of the test tube rack 12 is indicated to store reagents, and when the quantity of the reagents detected by the pressure detection module 4 is more, the attack of the exhaust fan 13 is adjusted by the processing module 31 so that the air circulation in the cabinet body 1 is smoother.
The liquid level detection module 54 is installed on the inside wall of the condensing box 53 and is used for detecting the liquid level in the condensing box 53, the liquid level detection module 54 is coupled with the processing module 31, the condensing box 53 is further provided with the alarm module 55, the alarm module 55 is coupled with the processing module 31, and when the liquid level detection module 54 detects that the liquid level in the condensing box 53 exceeds the preset liquid level threshold value in the processing module 31, an operator is prompted through the alarm module 55.
The embodiment of the application relates to a laboratory fume hood, which is implemented according to the following principle: when the fume hood is used, when the pressure detection module 4 detects that the number of reagents on the test tube rack 12 is increased, the power of the exhaust fan 13 is adjusted according to the existing actual number on the test tube rack 12, when the exhaust fan 13 runs at high power to enable the hood body 1 to shake more severely, the motor is pushed at the moment to drive the push rod 15 to adsorb the adsorption disc 16 on the ground of a laboratory, and then the air pump 17 pumps the adsorption disc 16 away from the air in front of the ground of the laboratory, so that the stability of the hood body 1 is realized.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (7)
1. The utility model provides a laboratory fume chamber, includes the cabinet body (1), be provided with in the cabinet body (1) and place board (11), be provided with test-tube rack (12) on placing board (11), be provided with exhaust fan (13), its characterized in that on the cabinet body (1): the air sucking device is characterized in that a pushing air cylinder (14) is arranged at the bottom of the cabinet body (1), a pushing rod (15) is arranged at the bottom of the pushing air cylinder (14), an adsorption disc (16) is arranged at one end, far away from the pushing air cylinder (14), of the pushing rod (15), an air sucking pump (17) is arranged on the adsorption disc (16), and the air sucking pump (17) is used for sucking air in the adsorption disc (16) when the adsorption disc (16) adsorbs;
the automatic lifting device is characterized in that a sliding wheel (2) is arranged at the bottom of the cabinet body (1), a sliding screw rod (21) is rotatably connected to the top of the sliding wheel (2), and a driving motor (22) for driving the sliding screw rod (21) to lift is arranged at the bottom of the cabinet body (1);
comprises an amplitude detection module (3) and a processing module (31);
the processing module (31) is arranged on the cabinet body (1), the processing module (31) is coupled with the driving motor (22), the air extracting pump (17) and the pushing air cylinder (14), and the processing module (31) is used for driving the driving motor (22) to rotate, the air extracting pump (17) to extract air, the exhaust fan (13) to rotate and the pushing air cylinder (14) to push the pushing rod (15);
the bottom of the test tube rack (12) is provided with a pressure detection module (4), the pressure detection module (4) is coupled with a processing module (31), and when the pressure detection module (4) detects that the number of the reagents on the test tube rack (12) is increased, the power of the exhaust fan (13) is adjusted according to the existing actual number on the test tube rack (12);
the vibration amplitude detection module (3) is installed on the cabinet body (1), when the exhaust fan (13) runs at high power to enable the cabinet body (1) to shake more violently, the vibration amplitude detection module (3) is used for detecting the vibration amplitude of the cabinet body (1), the vibration amplitude threshold value is set in the processing module (31), when the vibration amplitude detection module (3) detects that the vibration amplitude of the cabinet body (1) is greater than the preset vibration amplitude threshold value, a signal is sent to the processing module (31), and the processing module (31) drives the pushing cylinder (14) and the air pump (17) to stabilize the cabinet body (1).
2. A laboratory fume hood according to claim 1, wherein: the novel refrigerator is characterized in that the top of the refrigerator body (1) is provided with a vent hole (5), the vent hole is sleeved with a vent pipe (51), one end, away from the refrigerator body (1), of the vent pipe (51) is provided with a condensation plate (52), the top of the refrigerator body (1) is provided with a condensation box (53), the condensation box (53) is located in the vent pipe (51), the top of the condensation box (53) is open, and the condensation box (53) is arranged below the condensation plate (52).
3. A laboratory fume hood according to claim 2, wherein: the condensing plates (52) are arranged in two, a pair of condensing plates (52) are obliquely arranged, the highest positions of the condensing plates (52) are connected, and the connecting positions of the condensing plates (52) are located above the vent holes (5).
4. A laboratory fume hood according to claim 2, wherein: the inner side wall of the condensing box (53) is provided with a liquid level detection module (54), and the side wall of the cabinet body (1) is provided with an alarm module (55);
the liquid level detection module (54) is coupled with the processing module (31), the liquid level detection module (54) is used for detecting the liquid level in the condensing box (53), and the liquid level detection module (54) sends a liquid level detection signal to the processing module (31);
the alarm module (55) is coupled with the processing module (31), and the alarm module (55) is used for alarming.
5. A laboratory fume hood according to claim 2, wherein: the novel cabinet is characterized in that the top of the cabinet body (1) is provided with a mounting groove (9), the bottom of the ventilation pipe (51) is provided with a mounting edge (91), and the mounting edge (91) is inserted into the mounting groove (9).
6. A laboratory fume hood according to claim 5, wherein: the bottom of the mounting edge (91) is provided with a fixed magnet (61), the bottom wall of the mounting groove (9) is provided with a connecting magnet (62), and the fixed magnet (61) and the connecting magnet (62) are magnetically attracted.
7. A laboratory fume hood according to claim 6, wherein: the side wall of the mounting groove (9) is provided with a sealing ring (7), and the sealing ring (7) is attached to the top of the cabinet body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211029580.8A CN115254864B (en) | 2022-08-25 | 2022-08-25 | Laboratory fume chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211029580.8A CN115254864B (en) | 2022-08-25 | 2022-08-25 | Laboratory fume chamber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115254864A CN115254864A (en) | 2022-11-01 |
| CN115254864B true CN115254864B (en) | 2023-09-26 |
Family
ID=83755533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211029580.8A Active CN115254864B (en) | 2022-08-25 | 2022-08-25 | Laboratory fume chamber |
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| Country | Link |
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| CN (1) | CN115254864B (en) |
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| CN213840288U (en) * | 2020-10-27 | 2021-07-30 | 青岛鑫耀环保科技有限公司 | Movable industrial dust removal equipment |
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| CN215935229U (en) * | 2021-08-17 | 2022-03-01 | 杭州秀生网络科技有限公司 | Anti-seismic communication cabinet |
| CN216723704U (en) * | 2021-12-03 | 2022-06-14 | 科普元环保科技(上海)有限公司 | Shoe cabinet with internal drying and sterilizing functions |
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|---|---|
| CN115254864A (en) | 2022-11-01 |
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