CN114054462B - Image measuring instrument's protector - Google Patents
Image measuring instrument's protector Download PDFInfo
- Publication number
- CN114054462B CN114054462B CN202111355725.9A CN202111355725A CN114054462B CN 114054462 B CN114054462 B CN 114054462B CN 202111355725 A CN202111355725 A CN 202111355725A CN 114054462 B CN114054462 B CN 114054462B
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- image measuring
- measuring instrument
- instrument body
- side wall
- fixedly connected
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B17/00—Methods preventing fouling
- B08B17/02—Preventing deposition of fouling or of dust
- B08B17/04—Preventing deposition of fouling or of dust by using removable coverings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/04—Cleaning by suction, with or without auxiliary action
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- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The utility model relates to an image measuring instrument's protector relates to image measuring instrument's field, including the workstation that is used for installing the image measuring instrument body, the ring channel around the image measuring instrument body outside is seted up to the upper surface of workstation, installs the ring member in the ring channel, installs the lift piece that promotes the ring member and go up and down in the ring channel, and the ring member is inside to be equipped with a plurality of installation cavities, all installs the roof in every installation cavity, and a through-hole has all been seted up to the last table wall of every installation cavity, is connected with the drive assembly who promotes every roof and stretch out corresponding installation cavity and move to the direction that is close to the image measuring instrument body on the ring member. This application has the condition that reduces the dust and wafts on the image measuring instrument body and takes place, the effect of the operation image measuring instrument body of being convenient for simultaneously.
Description
Technical Field
The application relates to the field of image measuring instruments, in particular to a protection device of an image measuring instrument.
Background
The image measuring instrument is a high-precision optical image measuring instrument which consists of a high-resolution CCD color lens, a continuous zoom objective lens, a color display, a video cross line display, a precise grating ruler, a multifunctional data processor, data measuring software and a high-precision workbench structure.
Chinese patent with CN211262219U discloses an image measuring instrument with good dustproof effect, which comprises a measuring platform, wherein a transparent dustproof cover is fixedly arranged on the upper surface of the measuring platform, an image measuring instrument body is arranged inside the transparent dustproof cover, and a dustproof cover movable door is movably arranged on the vertical inner surface of one side of the transparent dustproof cover. When the image measuring instrument body needs to be used, the dust cover movable door is opened, and the image measuring instrument body is used inside the dust cover.
In view of the above-mentioned related art, the inventor believes that although the dust cover can reduce the occurrence of dust falling on the image measuring apparatus body, it is inconvenient to operate the image measuring apparatus body in the dust cover.
Disclosure of Invention
In order to reduce the condition emergence that the dust drifted on the image measuring instrument body, the image measuring instrument body of being convenient for operate simultaneously, this application provides an image measuring instrument's protector.
The application provides a protection device of image measuring instrument adopts following technical scheme:
the utility model provides an image measuring apparatu's protector, is including the workstation that is used for installing the image measuring apparatu body, the ring channel around the image measuring apparatu body outside is seted up to the upper surface of workstation, installs the annular member in the ring channel, installs the lift piece that promotes the annular member and go up and down in the ring channel, the inside a plurality of installation cavities that are equipped with of annular member, all install the roof in every installation cavity, a through-hole has all been seted up to the last table wall of every installation cavity, be connected with the drive assembly that promotes every roof and stretch out corresponding installation cavity and move to the direction that is close to the image measuring apparatu body on the annular member.
By adopting the technical scheme, when the image measuring instrument body is required to be used, the annular piece is positioned in the annular groove, and the image measuring instrument body is arranged on the upper surface of the workbench, so that the image measuring instrument body is convenient to operate; when the image measuring instrument body is not needed to be used, the lifting piece is started, the lifting piece pushes the annular piece to rise, and the image measuring instrument body is surrounded inside the annular piece; then start drive assembly, drive assembly promotes every roof and all stretches out corresponding installation cavity, and every roof all moves towards the direction that is close to the image measuring instrument body, so a plurality of roofs and annular member shelter from the image measuring instrument body inside, reduce the condition emergence that the dust drifted on the image measuring instrument body.
Preferably, sliding connection has the piston piece in the installation cavity, the equal fixedly connected with connecting rod in upper end of every piston piece, every the lower extreme of roof all is articulated with corresponding connecting rod, and drive assembly includes and keeps away from a lateral wall of image measuring instrument body and a plurality of dogteeth of a lateral wall fixed connection that image measuring instrument body was kept away from to every connecting rod with every roof, a plurality of driving motor of the lateral wall fixed connection of loop forming element, equal fixedly connected with gear on every driving motor's the output shaft, a plurality of installing ports have been seted up to the lateral wall of loop forming element, and the one end of every gear all wears to establish in corresponding installing port and with the dogtooth meshing on the corresponding connecting rod.
By adopting the technical scheme, the driving motor is started, the output shaft of the driving motor drives the gear to rotate, the gear rotates to push the top plate to ascend through the plurality of convex teeth, and the top plate ascends to drive the connecting rod and the piston block to ascend; after the hinged position of roof and connecting rod breaks away from the installation cavity, promote the roof, the roof can rotate towards the direction that is close to the image measuring instrument body, and the mode that the roof stretches out the installation cavity is comparatively simple and convenient.
Preferably, the piston piece is the piston piece of elasticity material, the inseparable joint of piston piece and corresponding installation cavity, a plurality of suction holes have been seted up to a lateral wall that the installation cavity is close to the image measuring instrument body, and a plurality of suction holes are located one side that the connecting rod was kept away from to the piston piece.
Through adopting above-mentioned technical scheme, when the piston piece upward movement, the piston piece is less near the atmospheric pressure of suction hole one side in the installation cavity, and the suction hole can be breathed in to installation cavity inside this moment, is convenient for absorb near the dust of image measuring apparatu body.
Preferably, a plurality of exhaust holes are formed in one side wall of the installation cavity, which is far away from the image measuring instrument body, and are located between the piston block and the plurality of air suction holes, a first baffle made of soft material is fixedly connected to one side wall of the installation cavity, which is near to the image measuring instrument body, and is located between the plurality of exhaust holes and the plurality of air suction holes, a second baffle made of soft material is fixedly connected to one side wall of the installation cavity, which is far away from the image measuring instrument body, and is located between the plurality of exhaust holes and the first baffle; when the piston block moves upwards, the first baffle plate and the second baffle plate both rotate upwards, and the second baffle plate seals the exhaust holes; when the piston block moves downwards, the first baffle plate and the second baffle plate both rotate downwards, and the first baffle plate seals the plurality of air suction holes.
By adopting the technical scheme, in the process that the top plate and the annular piece gradually shield the image measuring instrument body, the mounting cavity sucks dust near the image measuring instrument body from the suction hole; in the process that the roof withdraws gradually the installation cavity, the dust of collecting in the installation cavity discharges to the one side that the ring-shaped member kept away from the image measuring instrument body from the exhaust hole gradually.
Preferably, every the equal fixedly connected with balancing weight in upper end of roof, every balancing weight all is located a side that the roof is close to the image measuring instrument body.
Through adopting above-mentioned technical scheme, after the articulated department of roof and connecting rod stretches out the installation cavity, the roof can be rotated to the direction that is close to the image measuring instrument body automatically under the drive of balancing weight self gravity, need not to exert external force in addition, comparatively uses manpower sparingly.
Preferably, a plurality of limiting plates of upper end fixedly connected with of loop forming element, every limiting plate all upwards inclines gradually towards the direction of keeping away from the loop forming element, and the roof stretches out and rotates and the overlap joint on corresponding limiting plate in the direction that is close to the limiting plate behind the installation cavity.
Through adopting above-mentioned technical scheme, back on the limiting plate is lapped to the roof, and the roof is the tilt state, and the contained angle between roof and the connecting rod this moment is greater than ninety degrees, and the roof of being convenient for retracts inside the installation cavity.
Preferably, the outer side wall of the ring-shaped member is provided with a plurality of filter covers, and the plurality of filter covers cover the exhaust holes on the outer side wall of the ring-shaped member inside.
Through adopting above-mentioned technical scheme, when the exhaust hole when exhausting to the external world, the filter mantle is collected dust to inside the filter mantle.
Preferably, the filter cover is fixedly connected with a hanging rod, the outer side wall of the ring-shaped member is fixedly connected with a plurality of hanging rings, and each hanging rod is hung in a corresponding hanging ring.
Through adopting above-mentioned technical scheme, the pulling is hung and is connect the pole and make the articulate pole break away from and hang and connect the ring, has accomplished the dismantlement of filter mantle so promptly, is convenient for clear up the filter mantle.
In summary, the present application includes at least one of the following beneficial technical effects:
1. when the image measuring instrument body is not needed, the image measuring instrument body is shielded inside by the plurality of top plates and the ring-shaped pieces, so that the situation that dust falls on the image measuring instrument body is reduced;
2. in the process that the top plate extends out of the mounting cavity, the air suction holes can suck air into the mounting cavity, so that dust near the image measuring instrument body can be sucked and removed conveniently;
3. the top plate is conveniently retracted inside the mounting chamber.
Drawings
Fig. 1 is a schematic overall structure diagram of a protective device embodied in an embodiment of the present application.
Fig. 2 is a sectional view of the internal structure of the guard according to the embodiment of the present application.
Fig. 3 is a schematic structural diagram of a drive assembly embodied in an embodiment of the present application.
Description of reference numerals: 1. a work table; 11. an annular groove; 2. an image measuring instrument body; 3. an annular member; 31. a shielding plate; 311. installing a chamber; 312. a through hole; 313. an installation port; 314. a suction hole; 315. an exhaust hole; 32. a limiting plate; 33. a first baffle; 34. a second baffle; 4. a top plate; 41. a connecting rod; 42. a piston block; 43. a counterweight block; 5. a drive assembly; 51. a drive motor; 52. a gear; 53. convex teeth; 6. a driving cylinder; 7. a filter housing; 71. hanging a connecting rod; 8. a hanging ring.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses image measuring apparatu's protector. Referring to fig. 1 and 2, the protection device includes a workbench 1, an image measuring instrument body 2 is mounted on an upper surface of the workbench 1, a ring member 3 is arranged on an outer side of the image measuring instrument body 2, the ring member 3 includes four shielding plates 31, and the four shielding plates 31 are integrally formed to form a quadrangular ring member 3. The installation cavity 311 has been all seted up to the inside of every shielding plate 31, all installs a roof 4 in every installation cavity 311, and a through-hole 312 that communicates with installation cavity 311 has all been seted up to the upper surface of every shielding plate 31.
Referring to fig. 2 and 3, one end of each top plate 4 is inserted into the through hole 312, the other end is hinged to a connecting rod 41, a piston block 42 is fixedly connected to the lower end of the connecting rod 41, and the piston block 42 is slidably connected to the mounting chamber 311. A driving assembly 5 is connected to the top plate 4, and the driving assembly 5 is used for driving the top plate 4, the connecting rod 41 and the piston block 42 to move along the through hole 312 in a direction away from the inside of the mounting chamber 311.
When the hinge joint of the top plate 4 and the connecting rod 41 extends out of the through hole 312, each top plate 4 rotates in a direction approaching the image measuring apparatus body 2. Every roof 4 is triangle-shaped, and four roofs 4 seal the top of ring member 3 this moment, and four roofs 4 cover image measuring instrument body 2 inside with ring member 3 jointly to protect image measuring instrument body 2.
The upper surface of workstation 1 has seted up ring channel 11, and the lower extreme of loop forming element 3 alternates in ring channel 11. The workbench 1 is internally provided with a lifting piece which is used for controlling the ring-shaped piece 3 to lift. The elevating member in this application embodiment includes two actuating cylinder 6 that drive, drives actuating cylinder 6 fixed connection on the interior diapire of workstation 1, every actuating cylinder 6 that drives piston rod all vertical upwards set up and with the bottom fixed connection of loop forming element 3.
When the image measuring instrument body 2 needs to be operated, the driving cylinder 6 is started, so that the piston rod of the driving cylinder 6 drives the annular piece 3 to descend. Thereby the ring-shaped member 3 descends to inside the ring channel 11 gradually, and the image measuring instrument body 2 exposes in the external world gradually this moment, and the staff of being convenient for operates image measuring instrument body 2.
An installation opening 313 is formed in one side wall of each shielding plate 31 far away from the image measuring instrument body 2, and the installation opening 313 is communicated with the installation cavity 311. The driving assembly 5 includes a driving motor 51 fixedly connected to an outer side wall of each shielding plate 31, and a gear 52 is fixedly connected to an output shaft of each driving motor 51. A plurality of convex teeth 53 are fixedly connected to one side surface of each shielding plate 31 far away from the image measuring instrument body 2, and the convex teeth 53 are arranged along the sliding direction of the piston block 42. And a plurality of convex teeth 53 are fixedly connected to one side surface of each connecting rod 41 far away from the image measuring instrument body 2. One end of each driving gear 52 is inserted into the corresponding mounting hole 313, and each driving gear 52 is engaged with a plurality of teeth 53.
The driving motor 51 is started, the output shaft of the driving motor 51 rotates forward and backward to drive the gear 52 to rotate forward and backward, and the gear 52 rotates forward and backward to drive the shielding plate 31 and the connecting rod 41 to lift through the plurality of convex teeth 53.
The upper end of each top plate 4 is fixedly connected with a balancing weight 43, and the balancing weight 43 is positioned on one side surface of each top plate 4 close to the image measuring instrument body 2. After the hinged portion of the top plate 4 and the connecting rod 41 extends out of the mounting cavity 311, the top plate 4 is driven by the weight 43 to rotate in the direction close to the image measuring instrument body 2, and the rotation direction of the top plate 4 controlled by applying external force is not needed, so that time and labor are saved.
A limiting plate 32 is fixedly connected to one side surface of each shielding plate 31 close to the image measuring instrument body 2, the limiting plate 32 is located at the upper end of the shielding plate 31, and the limiting plate 32 gradually inclines upwards along the direction away from the shielding plate 31. When roof 4 rotated to the direction that is close to image measuring instrument body 2, every roof 4 all rotated towards the direction that is close to corresponding limiting plate 32, when roof 4 overlap joint was to corresponding limiting plate 32, roof 4 stall, and roof 4 is the tilt state this moment. This facilitates the gradual retraction of the top plate 4 into the mounting chamber 311 as the top plate 4 is gradually moved closer into the mounting chamber 311.
A plurality of air suction holes 314 are formed in one side wall of each mounting cavity 311 close to the image measuring instrument body 2, and the air suction holes 314 are arranged in the horizontal direction. A plurality of air vents 315 are formed in a side wall of each mounting cavity 311 away from the image measuring instrument body 2, and the air vents 315 are arranged in the horizontal direction. A first baffle 33 is fixedly connected to a side wall of each mounting chamber 311 close to the image measuring instrument body 2, and the first baffle 33 is located between the air suction hole 314 and the air discharge hole 315. A second baffle 34 is fixedly connected to a sidewall of each mounting cavity 311 away from the image measuring instrument body 2, and the second baffle 34 is located between the exhaust hole 315 and the first baffle 33. The first baffle 33 and the second baffle 34 are both made of soft materials, and the first baffle 33 and the second baffle 34 are both horizontally arranged.
The piston blocks 42 are made of elastic material, and each piston block 42 is tightly clamped with the corresponding mounting chamber 311. When the driving assembly 5 drives the top plate 4 and the connecting rod 41 to ascend until the top plate 4 gradually separates from the mounting chamber 311, the connecting rod 41 drives the piston block 42 to ascend. At this time, the air pressure in the mounting chamber 311 below the piston block 42 is reduced, the first shutter 33 is gradually rotated upward in a direction away from the suction hole 314, the second shutter 34 is rotated upward, and the second shutter 34 closes the discharge hole 315. The air suction hole 314 sucks air into the mounting chamber 311, and facilitates dust removal of the image measuring apparatus body 2.
When the driving assembly 5 drives the top plate 4 and the connecting rod 41 to descend until the top plate 4 gradually enters the installation chamber 311, the connecting rod 41 drives the piston block 42 to descend. At this time, the air pressure in the installation chamber 311 below the piston block 42 increases, the first shutter 33 rotates downward to gradually close the suction hole 314, and the second shutter 34 rotates downward in a direction away from the discharge hole 315. Dust in the installation chamber 311 at this time is discharged through the discharge hole 315.
The outer side wall of each shielding plate 31 is provided with a filter cover 7, one side of the filter cover 7 is open, and the filter cover 7 covers a plurality of vent holes 315 on each shielding plate 31. The outer side wall of each shielding plate 31 is fixedly connected with a hanging ring 8, the upper inner surface wall of the filtering cover 7 is fixedly connected with a hanging rod 71 which is vertically and upwardly arranged, each hanging rod 71 penetrates through the corresponding hanging ring 8, and the hanging rods 71 are hung with the hanging rings 8.
When the dust in the mounting chamber 311 is discharged through the discharge hole 315, the foreign substances are caught inside the filter cage 7, thus facilitating the collection of the dust. And the filter cover 7 is pulled to enable the hanging and connecting rod 71 to be gradually separated from the hanging and connecting ring 8, so that the filter cover 7 is detached and separated from the shielding plate 31, and dust in the filter cover 7 is convenient to clean.
The implementation principle of the protection device of the image measuring instrument in the embodiment of the application is as follows: when the image measuring instrument body 2 is not used, the two driving cylinders 6 are started simultaneously, the piston rods of the driving cylinders 6 push the ring piece 3 to gradually extend out of the annular groove 11, and the image measuring instrument body 2 is gradually enclosed inside the ring piece 3. Then, the four driving motors 51 are started, the driving motors 51 drive the gear 52 to rotate, and the gear 52 rotates to drive the top plate 4 and the connecting rod 41 to gradually rise through the plurality of convex teeth 53. When the hinge joint of the top plate 4 and the connecting rod 41 is separated from the mounting chamber 311 through the through hole 312, the driving motor 51 is turned off, and each top plate 4 is rotated in a direction approaching the image measuring apparatus body 2 by the force of the corresponding weight 43. When the top plates 4 contact the corresponding stopper plates 32, the four top plates 4 together with the ring 3 house the image measuring instrument body 2 inside.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (5)
1. The utility model provides an image measuring apparatu's protector, includes workstation (1) that is used for installing image measuring apparatu body (2), its characterized in that: the upper surface of the workbench (1) is provided with an annular groove (11) wound on the outer side of the image measuring instrument body (2), an annular piece (3) is installed in the annular groove (11), a lifting piece for pushing the annular piece (3) to lift is installed in the annular groove (11), a plurality of installation cavities (311) are formed in the annular piece (3), a top plate (4) is installed in each installation cavity (311), a through hole (312) is formed in the upper surface wall of each installation cavity (311), and a driving assembly (5) for pushing each top plate (4) to extend out of the corresponding installation cavity (311) and move towards the direction close to the image measuring instrument body (2) is connected onto the annular piece (3);
the mounting cavity (311) is internally and slidably connected with piston blocks (42), the upper end of each piston block (42) is fixedly connected with a connecting rod (41), the lower end of each top plate (4) is hinged to the corresponding connecting rod (41), the driving assembly (5) comprises a plurality of convex teeth (53) fixedly connected with one side wall of each top plate (4) far away from the image measuring instrument body (2) and one side wall of each connecting rod (41) far away from the image measuring instrument body (2), the outer side wall of the ring-shaped element (3) is fixedly connected with a plurality of driving motors (51), the output shaft of each driving motor (51) is fixedly connected with a gear (52), the outer side wall of the ring-shaped element (3) is provided with a plurality of mounting ports (313), and one end of each gear (52) is arranged in the corresponding mounting port (313) in a penetrating manner and meshed with the convex teeth (53) on the corresponding connecting rod (41);
the piston block (42) is made of elastic materials, the piston block (42) is tightly clamped with the corresponding mounting chamber (311), a plurality of air suction holes (314) are formed in one side wall, close to the image measuring instrument body (2), of the mounting chamber (311), and the air suction holes (314) are located on one side, far away from the connecting rod (41), of the piston block (42);
a plurality of vent holes (315) are formed in one side wall, far away from the image measuring instrument body (2), of the mounting cavity (311), the vent holes (315) are located between the piston block (42) and the suction holes (314), a first baffle (33) made of a soft material is fixedly connected to one side wall, close to the image measuring instrument body (2), of the mounting cavity (311), the first baffle (33) is located between the vent holes (315) and the suction holes (314), a second baffle (34) made of a soft material is fixedly connected to one side wall, far away from the image measuring instrument body (2), of the mounting cavity (311), and the second baffle (34) is located between the vent holes (315) and the first baffle (33);
when the piston block (42) moves upwards, the first baffle plate (33) and the second baffle plate (34) rotate upwards, and the second baffle plate (34) seals the exhaust holes (315);
when the piston block (42) moves downwards, the first baffle plate (33) and the second baffle plate (34) rotate downwards, and the first baffle plate (33) seals the plurality of suction holes (314).
2. The protection device of claim 1, wherein: every the equal fixedly connected with balancing weight (43) in upper end of roof (4), every balancing weight (43) all are located roof (4) and are close to the side of image measuring instrument body (2).
3. The protection device of image measuring instrument according to claim 1 or 2, wherein: the upper end fixedly connected with of loop forming element (3) is a plurality of limiting plate (32), and every limiting plate (32) all upwards inclines gradually towards the direction of keeping away from loop forming element (3), and roof (4) stretch out installation cavity (311) back and rotate and the overlap joint on corresponding limiting plate (32) the direction that is close to limiting plate (32).
4. The protection device of claim 1, wherein: a plurality of filter covers (7) are installed on the outer side wall of the ring-shaped piece (3), and the exhaust holes (315) on the outer side wall of the ring-shaped piece (3) are covered inside the plurality of filter covers (7).
5. The protection device of claim 4, wherein: the filter cover (7) is fixedly connected with a hanging rod (71), the outer side wall of the ring-shaped piece (3) is fixedly connected with a plurality of hanging rings (8), and each hanging rod (71) is hung in the corresponding hanging ring (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111355725.9A CN114054462B (en) | 2021-11-16 | 2021-11-16 | Image measuring instrument's protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111355725.9A CN114054462B (en) | 2021-11-16 | 2021-11-16 | Image measuring instrument's protector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114054462A CN114054462A (en) | 2022-02-18 |
| CN114054462B true CN114054462B (en) | 2023-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111355725.9A Active CN114054462B (en) | 2021-11-16 | 2021-11-16 | Image measuring instrument's protector |
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| Country | Link |
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| CN (1) | CN114054462B (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH495180A (en) * | 1969-12-15 | 1970-08-31 | Koepfer Eduard | Attachment hood for dust extraction when emptying vessels or other containers |
| JP5283595B2 (en) * | 2009-09-11 | 2013-09-04 | 株式会社西日本メタル | Mobile dust collection hood device |
| CN109898660B (en) * | 2019-02-28 | 2020-08-07 | 温州国宁建设有限公司 | Structure is built in interim room in quick detachable building site |
| CN211309202U (en) * | 2019-11-19 | 2020-08-21 | 盐城爱菲尔菌菇装备科技股份有限公司 | Useless fungus package is cut from machine with safety protection structure |
| CN211772703U (en) * | 2020-03-14 | 2020-10-27 | 朱永辉 | Road grooving machine |
| CN213415524U (en) * | 2020-09-12 | 2021-06-11 | 争丰半导体科技(苏州)有限公司 | Workbench protection device for automatic wafer sequencing machine |
| CN214010519U (en) * | 2020-12-12 | 2021-08-20 | 郑州迈拓信息技术有限公司 | Air flow protection device for experimental instrument |
| CN112880107B (en) * | 2021-02-03 | 2022-05-06 | 北京中能保科技有限公司 | Negative pressure air suction type air purifier |
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2021
- 2021-11-16 CN CN202111355725.9A patent/CN114054462B/en active Active
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| CN114054462A (en) | 2022-02-18 |
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