CN114534821B - Superclean bench with be convenient for glass door to open and close structure - Google Patents
Superclean bench with be convenient for glass door to open and close structure Download PDFInfo
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- CN114534821B CN114534821B CN202210087695.6A CN202210087695A CN114534821B CN 114534821 B CN114534821 B CN 114534821B CN 202210087695 A CN202210087695 A CN 202210087695A CN 114534821 B CN114534821 B CN 114534821B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L9/00—Supporting devices; Holding devices
- B01L9/02—Laboratory benches or tables; Fittings therefor
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Abstract
The invention discloses an ultra-clean workbench with a structure convenient for opening and closing a glass door, relates to the technical field of ultra-clean workbenches, has the advantage of lifting the glass door, and has the technical scheme that the key points of the technical scheme are as follows: the stage body has seted up the standing groove on open-ended upper port wall, it is connected with the first transparent plate of closed open-ended to slide in the standing groove, the stage body rotates at open-ended top outer wall and is connected with the pivot, be equipped with drive pivot pivoted motor on the stage body outer wall, the one end of pivot extends and gets into in the standing groove and is equipped with the driving piece that the first transparent plate of drive reciprocated.
Description
Technical Field
The invention relates to the technical field of superclean workbenches, in particular to a superclean workbench with a structure convenient for opening and closing a glass door.
Background
The ultra-clean workbench is designed to meet the requirements of the fields of modern industry, photoelectric industry, biopharmaceutical industry, scientific research and test and the like on the cleanliness of a local working area.
Chinese patent with publication number CN207562936U discloses an aseptic superclean bench, including the support and set up the stage body on the support, the stage body is the cuboid, the internal portion of stage is provided with the operation mesa, and the outside of operation mesa is equipped with over-and-under type glass door, the top of operation mesa is equipped with ultraviolet lamp and light, ultraviolet lamp and light connection director, the middle part downwardly extending of operation mesa is equipped with the recess, the inside of recess is provided with elevating system, elevating system connects the controller, the controller set up in the outside of stage body. The present application provides another lift structure for a glass door.
Disclosure of Invention
Aiming at the technical defects, the invention aims to provide the superclean workbench with the structure convenient for opening and closing the glass door, and the superclean workbench has the advantage of lifting the glass door.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention provides an ultra-clean workbench with a structure convenient for opening and closing a glass door, which comprises a support and a workbench body arranged at the upper end of the support, wherein the workbench body is in a hollow rectangular shape, an opening is formed in one side of the workbench body, a placing groove is formed in the wall of the upper opening of the workbench body, a first transparent plate for closing the opening is connected in the placing groove in a sliding manner, a rotating shaft is rotatably connected to the outer wall of the workbench body above the opening, a motor for driving the rotating shaft to rotate is arranged on the outer wall of the workbench body, and one end of the rotating shaft extends into the placing groove and is provided with a driving piece for driving the first transparent plate to move up and down.
Through adopting above-mentioned technical scheme, when the motor drives the pivot and rotates for the driving piece drives first transparent plate and reciprocates, seals the opening when first transparent plate moves down, and during the rebound, opens opening person of facilitating the use and uses.
Preferably, the driving piece is including seting up the isosceles triangle drive groove in first transparent plate towards pivot one side, the summit in drive groove is close to the lower mouthful wall distribution of open-ended, the base in drive groove is the arc limit, be equipped with the pendulum rod in the pivot, the one end rotation that the pivot was kept away from to the pendulum rod is connected with the actuating lever, the one end of actuating lever articulates the summit at drive groove, and the other end is equipped with the roller of sliding connection on the arc edge, the distance between the hinge point of pendulum rod and actuating lever and the roller is less than the distance on pin joint to drive groove summit, when the motor drove the summit swing of pendulum rod to drive groove, first transparent plate removed to opening below mouthful wall.
Preferably, the driving part comprises a first eccentric wheel arranged at one end of the rotating shaft, which enters the placing groove, a second eccentric wheel for placing the first eccentric wheel is embedded in one side, which faces the first eccentric wheel, of the first transparent plate, and the second eccentric wheel is eccentrically arranged and rotatably connected with the first eccentric wheel.
Preferably, the driving part comprises a third eccentric wheel arranged at one end of the rotating shaft, which is located in the placing groove, a rectangular frame concentric with the third eccentric wheel is arranged on the outer wall of the third eccentric wheel, and a sliding groove for the rectangular frame to slide along the horizontal direction is formed in the first transparent plate.
Preferably, a moving groove is formed in the wall of the port at the lower end of the opening, a second transparent plate corresponding to the first transparent plate is connected in the moving groove in a sliding mode, and a power piece for driving the first transparent plate and the second transparent plate to move in opposite directions or move in opposite directions is arranged on the first transparent plate.
Preferably, the power part comprises first connecting rods hinged to two sides of the upper end of the first transparent plate, a communicating groove communicated with the placing groove and the moving groove is formed in the platform body, a second connecting rod is rotatably connected to the groove wall of the communicating groove, one end of the second connecting rod is hinged to the first connecting rod, the other end of the second connecting rod is hinged to a third connecting rod, one end, far away from the second connecting rod, of the third connecting rod is hinged to the second transparent plate, and the second connecting rod and the hinged point of the groove wall of the communicating groove are close to the first connecting rod.
Preferably, the table body is provided with control grooves on the outer walls of two sides of the opening, two infrared sensors for controlling the rotation of the motor are arranged in the control grooves, each infrared sensor comprises an infrared receiver and an infrared emitter which are respectively arranged on the upper and lower opposite groove walls of the control groove, when the infrared sensors are triggered each time, the infrared sensors control the rotation of the motor for the same time, one infrared sensor controls the forward rotation of the motor, and the other infrared sensor controls the reverse rotation of the motor.
Preferably, when the motor fails, the groove bottom of the placing groove is provided with a protection piece which enables a safe distance to exist between the lower end of the first transparent plate and the lower end of the wall of the opening.
Preferably, the protection part comprises an extension spring arranged at the bottom of the placing groove, and when the motor fails, the extension spring provides tension for the first transparent plate, so that when the first transparent plate is static, a safe distance exists between the lower end of the first transparent plate and the lower end of the wall of the opening.
Preferably, the lower end face of the first transparent plate is provided with a transverse plate abutting against the transverse plate and the wall of the opening, and the transverse plate is an elastic plate.
The invention has the beneficial effects that: when the motor drives the rotating shaft to rotate, the driving piece drives the first transparent plate to move up and down, the opening is closed when the first transparent plate moves downwards, and the opening is opened when the first transparent plate moves upwards, so that a user can use the electric heating cooker conveniently.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of the present embodiment;
FIG. 2 is a schematic structural diagram of the present embodiment for embodying an opening;
FIG. 3 is a schematic structural diagram of a driving slot according to the present embodiment;
FIG. 4 is a schematic structural diagram of a first eccentric wheel according to the present embodiment;
fig. 5 is a schematic structural diagram of the second transparent board according to the embodiment.
Description of reference numerals:
in the figure: 1. a support; 11. a table body; 12. an opening; 13. a placement groove; 131. a first transparent plate; 132. a rotating shaft; 133. a motor; 14. a drive slot; 141. a swing rod; 142. a drive rod; 143. a roller; 15. a first eccentric wheel; 151. a second eccentric wheel; 16. a third eccentric wheel; 161. a rectangular frame; 162. a chute; 163. a moving groove; 164. a second transparent plate; 165. a first link; 166. a second link; 167. a third link; 17. a control slot; 171. an infrared sensor; 18. an extension spring; 181. a transverse plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The utility model provides an ultra-clean bench with be convenient for glass door to open and close structure, as fig. 1 and fig. 2, including support 1 and the stage body 11 of setting in support 1 upper end, stage body 11 is hollow rectangle and one side is equipped with opening 12, stage body 11 has seted up standing groove 13 on opening 12's upper end mouth wall, standing groove 13 internal slipping is connected with the first transparent plate 131 that seals opening 12, when first transparent plate 131 moved to opening 12 in, also slide with opening 12's relative mouthful wall and be connected, stage body 11 rotates at opening 12's top outer wall and is connected with pivot 132, be equipped with drive pivot 132 pivoted motor 133 on stage body 11 outer wall, the one end of pivot 132 extends to get into in standing groove 13 and is equipped with the driving piece that drive first transparent plate 131 reciprocated. The ultraviolet lamp and the illuminating lamp arranged in the table body 11 are not described in detail herein for the prior art.
As shown in fig. 1 and 2, when the motor 133 drives the rotating shaft 132 to rotate, the driving member drives the first transparent plate 131 to move up and down, the opening 12 is closed when the first transparent plate 131 moves down, and the opening 12 is opened when the first transparent plate 131 moves up, so that the user can use the device conveniently.
As shown in fig. 2 and 3, the driving member includes an isosceles triangle driving slot 14 formed on one side of the first transparent plate 131 facing the rotating shaft 132, the vertex of the driving slot 14 is distributed near the lower opening wall of the opening 12, the bottom edge of the driving slot 14 is an arc-shaped edge, the arc-shaped edge is recessed towards the direction far away from the vertex, the rotating shaft 132 is provided with a swing rod 141, one end of the swing rod 141 far away from the rotating shaft 132 is rotatably connected with a driving rod 142, one end of the driving rod 142 is hinged at the vertex of the driving slot 14, the other end of the driving rod 142 is provided with a roller 143 slidably connected on the arc-shaped edge, the distance between the hinge point of the swing rod 141 and the driving rod 142 and the roller 143 is smaller than the distance from the hinge point to the vertex of the driving slot 14, and when the motor 133 drives the swing rod 141 to swing towards the vertex of the driving slot 14, the first transparent plate 131 moves towards the opening wall below the opening 12. At this time, the motor 133 drives the driving rod 142 to swing around a hinge point with the driving slot 14 through the swing rod 141, and in the process of swinging the swing rod 141, the driving rod 142 is driven to swing and simultaneously the driving rod 142 is driven to move towards a direction close to the lower port wall of the opening 12 or away from the lower port wall of the opening 12, which is convenient for the first transparent plate 131 to open or close the opening 12.
As shown in fig. 4, alternatively, the driving member includes a first eccentric wheel 15 disposed at one end of the rotating shaft 132 entering the placing slot 13, the first eccentric wheel 15 is disposed eccentrically to the rotating shaft 132, a second eccentric wheel 151 for placing the first eccentric wheel 15 is embedded in the first transparent plate 131 at a side facing the first eccentric wheel 15, and the second eccentric wheel 151 is disposed eccentrically to and rotatably connected to the first eccentric wheel 15. At this time, the motor 133 drives the rotating shaft 132 to rotate, so that the first eccentric wheel 15 drives the second eccentric wheel 151 to rotate in the first transparent plate 131 and simultaneously drives the first transparent plate 131 to move up and down along the inner wall of the opening 12, thereby facilitating opening or closing of the opening 12.
As shown in fig. 5, alternatively, the driving member includes a third eccentric wheel 16 disposed at one end of the rotating shaft 132 located in the placing groove 13, a rectangular frame 161 concentric with the third eccentric wheel 16 is disposed on an outer wall of the third eccentric wheel 16, and a sliding groove 162 for sliding the rectangular frame 161 along a horizontal direction is disposed on the first transparent plate 131. At this time, when the motor 133 drives the rotating shaft 132 to rotate, the rotating shaft 132 drives the third eccentric wheel 16 to rotate, so that the third eccentric wheel 16 drives the rectangular frame 161 to move back and forth in the sliding slot 162, and further drives the first transparent plate 131 to move up and down when the rectangular frame 161 moves in the sliding slot 162, and the third eccentric wheel 16 and the rotating shaft 132 are eccentrically arranged, and further drives the first transparent plate 131 to close or open the opening 12.
As shown in fig. 5, a moving groove 163 is formed on the lower port wall of the opening 12, a second transparent plate 164 corresponding to the first transparent plate 131 is slidably connected to the moving groove 163, and a power member for driving the first transparent plate 131 and the second transparent plate 164 to move in the opposite direction or in the opposite direction is provided on the first transparent plate 131. When the second transparent plate 164 moves into the opening 12, the second transparent plate 164 slides and is connected with the inner wall of the opening 12, and the power element is arranged so that when the opening 12 is closed by the first transparent plate 131, the second transparent plate 164 also moves upwards and is abutted against the first transparent plate 131 to close the opening 12, so that the downward movement distance of the first transparent plate 131 is reduced, and the opening and the closing of the opening 12 are facilitated.
As shown in fig. 5, the power member includes a first connecting rod 165 hinged on both sides of the upper end of the first transparent plate 131, a communicating groove for communicating the placing groove 13 with the moving groove 163 is formed in the table body 11, at this time, one end of the first connecting rod 165 penetrates out of the groove bottom of the placing groove 13 to enter the communicating groove, a second connecting rod 166 is rotatably connected to the groove wall of the communicating groove, one end of the second connecting rod 166 is hinged with the first connecting rod 165, the other end of the second connecting rod 166 is hinged with a third connecting rod 167, one end of the third connecting rod 167, which is far away from the second connecting rod 166, is hinged on the second transparent plate 164, and the hinged point of the second connecting rod 166 and the wall of the communicating groove is close to the first connecting rod 165. At this time, when the motor 133 drives the rotating shaft 132 to rotate, and the third eccentric wheel 16 drives the first transparent plate 131 to move downwards to close the opening 12, the first connecting rod 165 is pulled downwards, and at this time, the first connecting rod 165 drives one end of the third connecting rod 167 to move upwards through the second connecting rod 166, so that the third connecting rod 167 drives the second transparent plate 164 to move upwards, and the opening 12 is closed after the first transparent plate 131 and the second transparent plate 164 are abutted against each other.
As shown in fig. 1, in order to automatically drive the first transparent plate 131 to move up and down, therefore, the table body 11 has control slots 17 on the outer walls of the two sides of the opening 12, the two control slots 17 are respectively provided with the infrared sensor 171 for controlling the rotation of the motor 133, the infrared sensor 171 includes an infrared receiver and an infrared emitter respectively arranged on the upper and lower opposite slot walls of the control slots 17, when the infrared sensor 171 is triggered each time, for example, the hand of a user is put between the infrared receiver and the infrared emitter, the infrared receiver is prevented from receiving the signal of the infrared emitter, at this time, the infrared sensor 171 controls the motor 133 to rotate for the same time, one infrared sensor 171 controls the motor 133 to rotate forward, and the other infrared sensor 171 controls the motor 133 to rotate backward. When a user needs to adjust the first transparent plate 131 to move upwards to open the opening 12, a hand is placed between the infrared receiver and the infrared emitter once, the infrared sensor 171 can control the motor 133 to rotate for a certain time, when the user is placed for the second time, the time for controlling the motor 133 to rotate by the infrared sensor 171 is the same as that of the first time, the motor 133 drives the first transparent plate 131 to have a certain height every time, the user can conveniently adjust the distance for opening the opening 12 by the first transparent plate 131, in addition, the two infrared sensors 171 are arranged to enable one of the infrared sensors 171 to control the motor 133 to rotate forwards and backwards, the other infrared sensor 171 controls the motor 133 to rotate backwards, the motor 133 rotates forwards and the first transparent plate 131 moves towards the direction of the lower port wall of the opening 12, and when the motor 133 rotates backwards and the first transparent plate 131 moves towards the direction of the lower port wall of the opening 12, so that the user can adjust the height position of the first transparent plate 131 as needed, and the time for controlling the motor 133 to rotate forwards and backwards by the two infrared sensors 171 can be different, and thus the multiple height positions of the first transparent plate 131 can be adjusted. When the infrared sensor 171 does not detect the trigger signal, the motor 133 is controlled to stop rotating.
As shown in fig. 2, when the motor 133 is deactivated, the bottom of the groove 13 is provided with a guard for a safe distance between the lower end of the first transparent plate 131 and the lower end of the opening wall of the opening 12. At this time, the safety distance, for example, the height of the arm, exists between the first transparent plate 131 and the opening 12 due to the arrangement of the protection member, so that a safety effect is exerted on a user, and it is reduced that the first transparent plate 131 directly falls to close the opening 12 due to losing control, and a human body is injured by a crashing object.
As shown in fig. 2, the shielding member includes an extension spring 18 disposed at the bottom of the placing groove 13, and when the motor 133 is deactivated, the extension spring 18 provides a tensile force to the first transparent plate 131, so that when the first transparent plate 131 is at rest, a safety distance exists between the lower end of the first transparent plate 131 and the lower end of the opening wall of the opening 12. At this time, the tension spring 18 raises a tension force on the first transparent plate 131, when the motor 133 does not fail, the motor 133 drives the first transparent plate 131 to close the opening 12, and at this time, the tension spring 18 is in a stretched state.
As shown in fig. 2, a horizontal plate 181 abutting against the horizontal plate 181 and the wall of the opening 12 is disposed on the lower end surface of the first transparent plate 131, and the horizontal plate 181 is an elastic plate. The elastic plate is disposed to facilitate the first transparent plate 131 to close the opening 12, and reduce the injury to human body when the arm of the user accidentally collides with the lower end of the first transparent plate 131.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (4)
1. The superclean bench with the structure facilitating opening and closing of the glass door comprises a support (1) and a bench body (11) arranged at the upper end of the support (1), wherein the bench body (11) is a hollow rectangle, an opening (12) is formed in one side of the bench body (11), and is characterized in that a placing groove (13) is formed in the wall of an upper port of the opening (12) of the bench body (11), a first transparent plate (131) for sealing the opening (12) is connected in the placing groove (13) in a sliding mode, a rotating shaft (132) is connected to the outer wall of the bench body (11) above the opening (12) in a rotating mode, a motor (133) for driving the rotating shaft (132) to rotate is arranged on the outer wall of the bench body (11), and one end of the rotating shaft (132) extends into the placing groove (13) and is provided with a driving piece for driving the first transparent plate (131) to move up and down;
the driving piece comprises a third eccentric wheel (16) arranged at one end, located in the placing groove (13), of the rotating shaft (132), a rectangular frame (161) concentric with the third eccentric wheel (16) is arranged on the outer wall of the third eccentric wheel (16), and a sliding groove (162) for the rectangular frame (161) to slide along the horizontal direction is formed in the first transparent plate (131);
a moving groove (163) is formed in the wall of the lower port of the opening (12), a second transparent plate (164) corresponding to the first transparent plate (131) is connected in the moving groove (163) in a sliding manner, and a power piece for driving the first transparent plate (131) and the second transparent plate (164) to move oppositely or move towards the opposite direction is arranged on the first transparent plate (131);
the power part comprises first connecting rods (165) hinged to two sides of the upper end of the first transparent plate (131), a communicating groove communicated with the placing groove (13) and the moving groove (163) is formed in the table body (11), a second connecting rod (166) is rotatably connected to the wall of the communicating groove, one end of the second connecting rod (166) is hinged to the first connecting rod (165), the other end of the second connecting rod is hinged to a third connecting rod (167), one end, far away from the second connecting rod (166), of the third connecting rod (167) is hinged to the second transparent plate (164), and the hinged point of the second connecting rod (166) and the wall of the communicating groove is close to the first connecting rod (165);
the stage body (11) has all seted up control groove (17) on the both sides outer wall of opening (12), two all be equipped with control motor (133) pivoted infrared ray sensor (171) in control groove (17), infrared ray sensor (171) are including setting up infrared receiver and the infrared emitter on two relative cell walls about control groove (17) respectively, and when infrared ray sensor (171) were triggered at every turn, infrared ray sensor (171) control motor (133) rotate the same time, and one of them infrared ray sensor (171) control motor (133) corotation, another infrared ray sensor (171) control motor (133) reversal.
2. The clean bench with the structure for opening and closing the glass door as claimed in claim 1, wherein when the motor (133) fails, the bottom of the groove (13) is provided with a guard for keeping a safe distance between the lower end of the first transparent plate (131) and the lower end of the opening wall of the opening (12).
3. The clean bench with structure for opening and closing the glass door as claimed in claim 2, wherein said shielding member comprises an extension spring (18) disposed at the bottom of the placing groove (13), said extension spring (18) providing a pulling force to the first transparent plate (131) when the motor (133) fails, so that a safety distance exists between the lower end of the first transparent plate (131) and the lower end of the opening wall of the opening (12) when the first transparent plate (131) is at rest.
4. The superclean bench with structure convenient for opening and closing glass door of claim 3 is characterized in that a transverse plate (181) abutting against the transverse plate (181) and the opening wall of the opening (12) is arranged on the lower end face of the first transparent plate (131), and the transverse plate (181) is an elastic plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210087695.6A CN114534821B (en) | 2022-01-25 | 2022-01-25 | Superclean bench with be convenient for glass door to open and close structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210087695.6A CN114534821B (en) | 2022-01-25 | 2022-01-25 | Superclean bench with be convenient for glass door to open and close structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114534821A CN114534821A (en) | 2022-05-27 |
| CN114534821B true CN114534821B (en) | 2023-04-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210087695.6A Active CN114534821B (en) | 2022-01-25 | 2022-01-25 | Superclean bench with be convenient for glass door to open and close structure |
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| Country | Link |
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| CN (1) | CN114534821B (en) |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2228245A1 (en) * | 2009-03-13 | 2010-09-15 | Pilkington Italia S.p.A. | Slideable window |
| CN102278039B (en) * | 2011-05-30 | 2013-04-03 | 厦门志盛工贸有限公司 | Single-swing rod electric lifting window |
| JP6088155B2 (en) * | 2012-04-27 | 2017-03-01 | ヤマト科学株式会社 | Hand arm insertion opening movable hood |
| KR101325275B1 (en) * | 2012-10-10 | 2013-11-05 | (주)한국기계 | Experiment fume hood |
| CN207533654U (en) * | 2017-11-07 | 2018-06-26 | 苏州市凯利勋实验室设备有限公司 | A kind of vent cabinet with automatic sensing door |
| CN207562936U (en) * | 2017-11-22 | 2018-07-03 | 上海冬泽特医食品有限公司 | A kind of aseptic superclean bench |
| JP7185869B2 (en) * | 2018-09-04 | 2022-12-08 | 国立大学法人大阪大学 | processing equipment |
| CN209501718U (en) * | 2018-11-29 | 2019-10-18 | 江苏姑苏净化科技有限公司 | A kind of wind spring elevating mechanism clean bench |
| CN209866926U (en) * | 2019-04-20 | 2019-12-31 | 西安都创医药科技有限公司 | Safe fume chamber |
| CN210097743U (en) * | 2019-05-10 | 2020-02-21 | 武汉祥世玮烨教育科技有限公司 | Ultraviolet protection clean bench |
| CN210304431U (en) * | 2019-06-04 | 2020-04-14 | 重庆亚瑞塑胶有限公司 | UV (ultraviolet) light curing machine with strong protective performance |
| CN211988739U (en) * | 2020-03-17 | 2020-11-24 | 四川大学 | Superclean bench is used in laboratory |
| CN213376689U (en) * | 2020-07-28 | 2021-06-08 | 上海佳牧生物制品有限公司 | Super-clean workbench of biological safety cabinet |
| CN213889880U (en) * | 2020-11-24 | 2021-08-06 | 赵春海 | Automatic protection superclean bench |
-
2022
- 2022-01-25 CN CN202210087695.6A patent/CN114534821B/en active Active
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