CN108657572A - A kind of Physical Experiment equipment containing box for carrying dust-removing - Google Patents
A kind of Physical Experiment equipment containing box for carrying dust-removing Download PDFInfo
- Publication number
- CN108657572A CN108657572A CN201810579106.XA CN201810579106A CN108657572A CN 108657572 A CN108657572 A CN 108657572A CN 201810579106 A CN201810579106 A CN 201810579106A CN 108657572 A CN108657572 A CN 108657572A
- Authority
- CN
- China
- Prior art keywords
- screw rod
- sealing plate
- physical experiment
- outer case
- case lid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
- B65D25/02—Internal fittings
- B65D25/04—Partitions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D53/00—Sealing or packing elements; Sealings formed by liquid or plastics material
- B65D53/02—Collars or rings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/02—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage
- B65D81/05—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
- B65D85/50—Containers, packaging elements or packages, specially adapted for particular articles or materials for living organisms, articles or materials sensitive to changes of environment or atmospheric conditions, e.g. land animals, birds, fish, water plants, non-aquatic plants, flower bulbs, cut flowers or foliage
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Evolutionary Biology (AREA)
- General Health & Medical Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Toxicology (AREA)
- Zoology (AREA)
- Sampling And Sample Adjustment (AREA)
- Cleaning In General (AREA)
Abstract
The invention discloses a kind of Physical Experiment equipment containing boxs for carrying dust-removing, including outer case, case lid, partition board and internal box；The case lid covers in outer case；The internal box setting in the outer case, is fixed with horizontal sealing plate on the bottom of internal box；Multiple vertical partition boards are fixed in the internal box；The bottom of the containing cavities offers the stomata through sealing plate；It is equipped with vertical column spinner on the corresponding case lid in the top of each containing cavities；The lower end of the column spinner is rotatably connected to horizontal pressing plate by bearing, and elevating mechanism is provided on the downside of the sealing plate.It is rotated by column spinner so that the pressing plate of its lower end moves down rotation and is pressed on Physical Experiment tool, and holding position is constant, keeps physical instrument motionless in containing cavities, more stablizes when mobile, avoids colliding；Make stomata to up-draught when sealing plate moves down, the air in containing cavities is blown out, takes away internal dust.
Description
Technical field
The present invention relates to Physical Experiment equipment, specifically a kind of Physical Experiment equipment containing box for carrying dust-removing.
Background technology
Physics is the subject for studying the motion of matter most typically rule and substance basic structure.It takes the lead to learn as natural science
Section, physics research become it greatly to universe, as low as all substances such as elementary particle most basic forms of motion and rule
The Research foundation of his each natural branch of science, its theoretical construct make full use of mathematics as the working language of oneself, with reality
It tests as the sole criterion for examining theoretical correctness, it, which is current most accurate a natural science subject and student, to learn
A branch of instruction in school, student is frequently necessary to test, be needed when testing by Physical Experiment articles for use by placing box in learning physics
It inside takes out, Physical Experiment articles for use is put into placing box again after finishing, place experimental article in placing box for a long time, wherein into
The dust entered is fallen on articles for use, especially some precision instruments, and the dust fallen into influences the use of precision instrument, therefore, it is necessary to
Existing containing box is improved, is solved the above problems.
Invention content
It is above-mentioned to solve the purpose of the present invention is to provide a kind of Physical Experiment equipment containing box for carrying dust-removing
The problem of being proposed in background technology.
To achieve the above object, the present invention provides the following technical solutions：
A kind of Physical Experiment equipment containing box for carrying dust-removing, including outer case, case lid, partition board and internal box；
The case lid covers in outer case；Internal box setting in the outer case, is fixed with horizontal close on the bottom of internal box
Sealing plate, secure attachment has a circle sealing ring on the edge of sealing plate；Multiple vertical partition boards are fixed in the internal box, it will
It is divided into multiple containing cavities in internal box, one layer of buffer layer is covered on the inner wall of containing cavities；The bottom of the containing cavities opens up
There is the stomata through sealing plate；It is equipped with vertical column spinner, column spinner on the corresponding case lid in the top of each containing cavities
By the thread segment of upper semisection, lower semisection smooth section and be fixed on the cap body of upper end and constitute, on the case lid that column spinner is worn
Internal thread is offered in hole；The lower end of the column spinner is rotatably connected to horizontal pressing plate by bearing, on the downside of pressing plate
Air bag is installed；It is provided with elevating mechanism on the downside of the sealing plate.
Further：The active card that can be turned on outer case both sides is rotatably connected to by hinge on the both sides of case lid
Buckle is fixed with buckle in the corresponding outer case in lower end of active card buckle.
Further：Lockset is set between the outer case and case lid.
Further：The sealing plate is made of internal metallic plate with the rubber layer being wrapped on the outside of metallic plate.
Further：The material of the buffer layer is rubber or sponge.
Further：The stomata being arranged in each containing cavities has 2-4, is evenly distributed in bottom.
Further：The elevating mechanism include the first screw rod, the second screw rod, swivel nut, shaft, handle, the first axis pin,
Connecting rod, the second axis pin, sliding slot and sliding block；First screw rod, the second screw coaxial are horizontally disposed, and the first screw rod, second
Screw rod is fixed and welded together, and the first screw rod, the second screw rod are symmetrical set, at the both ends of the first screw rod, the second screw rod
Fixed welding shaft, shaft are rotatably connected on outer case inner wall by bearing, are fixedly mounted on the outer end of shaft in axle shaft
Handle；It is arranged with swivel nut on first screw rod, the second screw rod, two is rotatably connected to by the first axis pin on the swivel nut of both sides
The identical connecting rod of a length, two connecting rods are arranged in a crossed manner, and are rotatablely connected by the second axis pin in point of intersection, the upper end of connecting rod
It is rotatablely connected sliding block, the corresponding sealing plate downside of sliding block opens up sliding slot, and sliding block is fastened in sliding slot, horizontal in sliding slot to move
It is dynamic.
Compared with prior art, the beneficial effects of the invention are as follows：The tool etc. of Physical Experiment is placed on receipts by the present invention
It receives intracavitary, is placed by classification in as needed on different containing cavities, convenient for being taken when experiment；It is rotated by column spinner so that its
The pressing plate of lower end moves down rotation and is pressed on Physical Experiment tool, and holding position is constant, persistently provides pressure, makes physics work
Tool is motionless in containing cavities, more stablizes when mobile, avoids colliding, and protects physics experimental tool；Push sealing plate or more
It is mobile, make stomata to up-draught when sealing plate moves down, the air in containing cavities is blown out, takes away internal dust, it will
Dust fallen into containing cavities etc. is outside to be blown out, and the dust in containing cavities is reduced, and makes tool reduction and dust when preserving storage
Contact.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of Physical Experiment with the equipment containing box for carrying dust-removing.
Fig. 2 is a kind of structural schematic diagram of Physical Experiment with sliding slot in the equipment containing box for carrying dust-removing.
Fig. 3 is a kind of structural schematic diagram of Physical Experiment with sliding block in the equipment containing box for carrying dust-removing.
In figure：1- outer cases, 2- case lids, 3- partition boards, 4- internal box, 5- buffer layers, 6- active card buckles, 7- buckles, 8-
Hinge, 9- smooth sections, 10- thread segments, 11- column spinners, 12- pressing plates, 13- air bags, 14- sealing plates, 15- sealing rings, 16- first
Screw rod, the second screw rods of 17-, 18- swivel nuts, 19- shafts, 20- handles, the first axis pins of 21-, 22- connecting rods, the second axis pins of 23-, 24-
Sliding slot, 25- sliding blocks, 26- stomatas, 27- containing cavities.
Specific implementation mode
Please refer to figure, in the embodiment of the present invention, a kind of Physical Experiment equipment containing box for carrying dust-removing, including it is outer
Babinet 1, case lid 2, partition board 3 and internal box 4；The case lid 2 covers in outer case 1, by 8 turns of hinge on the both sides of case lid 2
It moves and is connected with the active card buckle 6 that can be turned on 1 both sides of outer case, it is solid in the corresponding outer case 1 in lower end of active card buckle 6
There are buckle 7, active card buckle 6 to be equipped with and buckle 7 corresponding card holes, buckle 7 is inserted into card hole, by outer case 1 and case surely
Lid 2 is fixedly connected, and lockset can also be arranged between outer case 1 and case lid 2, locked together；The setting of the internal box 4 exists
In outer case 1, horizontal sealing plate 14 is fixed on the bottom of internal box 4, sealing plate 14 is by internal metallic plate and package
Rubber layer on the outside of metallic plate is constituted, and sealing plate 14 is contacted with the inner wall of outer case 1, and sealing plate 14 is slided with outer case 1
It is dynamic, make sealing plate 14 that can be slided up and down in outer case 1, secure attachment has a circle sealing ring on the edge of sealing plate 14
15, it keeps sealing between sealing plate 14 and outer case 1, so that sealing plate 14 is formed sealing piston structure, moved by sealing plate 14
Change air pressure below；It is fixed with multiple vertical partition boards 3 in the internal box 4, multiple storages will be divided into internal box 4
Chamber 27 is covered with one layer of buffer layer 5 on the inner wall of containing cavities 27, and the material of buffer layer 5 is rubber or sponge, reduces internal place
Tool and internal box 4 between shock；The bottom of the containing cavities 27 offers the stomata 26, Mei Geshou through sealing plate 14
The interior stomata 26 being arranged of chamber 27 of receiving has 2-4, is evenly distributed in 27 bottom of containing cavities, the space below sealing plate 14 reduces
When to up-draught, by blowouts such as dusts in containing cavities 27.
It is equipped with vertical column spinner 11 on the corresponding case lid in the top of each containing cavities 27 2, column spinner 11 is by upper
It half section of thread segment 10, the smooth section 9 of lower semisection and is fixed on the cap body of upper end and constitutes, on the case lid 2 that column spinner 11 is worn
Hole in offer internal thread, when smooth section 9 and hole contact so that column spinner 11 can slide up and down, in the early period of pushing
Can fast-holding be connected through a screw thread when thread segment 10 and hole contact, rotation column spinner 11 makes it move down, and provides
Enough pressure；The lower end of the column spinner 11 is rotatably connected to horizontal pressing plate 12 by bearing, on the downside of pressing plate 12
Air bag 13 is installed, air is filled in air bag 13, pressing plate 12 is made to be pressed on tool, can be avoided while compaction tool pair
Tool damages, and so that tool is placed in containing cavities 27 and more stablizes, movement is avoided to collide.
The downside of the sealing plate 14 is provided with elevating mechanism, elevating mechanism include the first screw rod 16, the second screw rod 17,
Swivel nut 18, shaft 19, handle 20, the first axis pin 21, connecting rod 22, the second axis pin 23, sliding slot 24 and sliding block 25；First screw rod
16, the second screw rod 17 is coaxially horizontally disposed, and the first screw rod 16, the second screw rod 17 are fixed and welded together, the first screw rod
16, the second screw rod 17 is symmetrical set so that the first screw rod 16, the second screw rod 17 hand of spiral on the contrary, in the first screw rod
16, fixed welding shaft 19, shaft 19 are rotatably connected on 1 inner wall of outer case by bearing in the both ends axle shaft of the second screw rod 17
On so that the first screw rod 16, the second screw rod 17 can rotate under the action of shaft 19, and handle is fixedly mounted on the outer end of shaft 19
Hand 20 passes through 20 rotating shaft 19 of handle；It is arranged with swivel nut 18, the spiral shell of both sides on first screw rod 16, the second screw rod 17
By the rotation connection of the first axis pin 21, there are two the identical connecting rods 22 of length on set 18, and two connecting rods 22 are arranged in a crossed manner, and
Point of intersection is rotatablely connected by the second axis pin 23, and the upper end of connecting rod 22 is rotatablely connected sliding block 25,25 corresponding sealing plate 14 of sliding block
Downside opens up sliding slot 24, and sliding block 25 is fastened in sliding slot 24, is moved horizontally in sliding slot 24, and the width in the sliding slot 24 is big
Width in outer end makes sliding block 25 be located at 24 inside of sliding slot and is extended downwardly from outer end, sliding block 25 is made to be moved in sliding slot 24,
And sealing plate 14 is jacked up or put down.
The tool etc. of Physical Experiment is placed in containing cavities 27, is placed by classification in different containing cavities 27 as needed
On, case lid 2 covers in outer case 1, is fastened by active card buckle 6, buckle 7, at this point, rotation column spinner 11, makes rotation
The pressing plate 12 of 11 lower end of column moves down rotation and is pressed on Physical Experiment tool, particularly, passes through smooth section 9 and case lid first
2 correspondences make, and can be moved on a large scale, and when being moved to thread segment 10, downward pressure is provided by the rotation of thread segment 10,
And holding position is constant, persistently provides pressure, keeps physical instrument motionless in containing cavities 27, more stablizes when mobile, avoids
It collides, protects physics experimental tool；When elevating mechanism rotates, and sealing plate 14 is pushed to move up, due to sealing plate 14
Lower section be sealing structure, the sealing plate 14 moved up so that lift below becomes larger, and is extracted from the top of sealing plate 14 empty
Gas keeps inner and outer air pressure identical, is supported by elevating mechanism, and teacher can take different tools in containing cavities 27 and use,
After use, tool is placed in containing cavities 27, is reversely rotated by elevating mechanism, and sealing plate 14 is made to move down, close
The volume of 14 lower section of sealing plate reduces, and internal air flows outward, by stomata 26 to up-draught, by what is fallen into containing cavities 27
Dust etc. is outside to be blown out, and the dust in containing cavities 27 is reduced, and makes dust of the tool when preserving storage inside reduction.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiment being appreciated that.
Claims (7)
1. a kind of Physical Experiment equipment containing box for carrying dust-removing, including outer case (1), case lid (2), partition board (3) and
Internal box (4)；It is characterized in that, the case lid (2) is covered in outer case (1)；The internal box (4) is arranged in outer case (1)
It is interior, horizontal sealing plate (14) is fixed on the bottom of internal box (4), secure attachment has one on the edge of sealing plate (14)
Enclose sealing ring (15)；Multiple vertical partition boards (3) are fixed in the internal box (4), multiple receipts will be divided into internal box (4)
It receives chamber (27), one layer of buffer layer (5) is covered on the inner wall of containing cavities (27)；The bottom of the containing cavities (27), which offers, to be run through
The stomata (26) of sealing plate (14)；It is equipped with vertical rotation on the corresponding case lid in top (2) of each containing cavities (27)
Column (11), column spinner (11) is by the thread segment (10) of upper semisection, the smooth section (9) of lower semisection and the cap body structure for being fixed on upper end
At offering internal thread in the hole on case lid (2) that column spinner (11) is worn；The lower end of the column spinner (11) is turned by bearing
It is dynamic to be connected with horizontal pressing plate (12), air bag (13) is installed on the downside of pressing plate (12)；The downside of the sealing plate (14)
It is provided with elevating mechanism.
2. a kind of Physical Experiment equipment containing box for carrying dust-removing according to claim 1, it is characterised in that：Institute
The active card buckle (6) that is rotatably connected to and can be turned on outer case (1) both sides by hinge (8) on the both sides of case lid (2) is stated,
It is fixed with buckle (7) in the corresponding outer case in lower end (1) of active card buckle (6).
3. a kind of Physical Experiment equipment containing box for carrying dust-removing according to claim 1 or 2, feature exist
In：Lockset is set between the outer case (1) and case lid (2).
4. a kind of Physical Experiment equipment containing box for carrying dust-removing according to claim 1, it is characterised in that：Institute
Sealing plate (14) is stated to be made of with the rubber layer being wrapped on the outside of metallic plate internal metallic plate.
5. a kind of Physical Experiment equipment containing box for carrying dust-removing according to claim 1, it is characterised in that：Institute
The material for stating buffer layer (5) is rubber or sponge.
6. a kind of Physical Experiment equipment containing box for carrying dust-removing according to claim 1, it is characterised in that：Often
The stomata (26) being arranged in a containing cavities (27) has 2-4, is evenly distributed in bottom.
7. a kind of Physical Experiment equipment containing box for carrying dust-removing according to claim 1, it is characterised in that：Institute
It includes the first screw rod (16), the second screw rod (17), swivel nut (18), shaft (19), handle (20), the first axis pin to state elevating mechanism
(21), connecting rod (22), the second axis pin (23), sliding slot (24) and sliding block (25)；First screw rod (16), the second screw rod (17) are same
Axis is horizontally disposed, and the first screw rod (16), the second screw rod (17) are fixed and welded together, the first screw rod (16), the second spiral shell
Bar (17) is symmetrical set, the first screw rod (16), the second screw rod (17) both ends axle shaft on fixed welding shaft (19),
Shaft (19) is rotatably connected on by bearing on outer case (1) inner wall, and handle (20) is fixedly mounted on the outer end of shaft (19)；Institute
It states the first screw rod (16), be arranged with swivel nut (18) on the second screw rod (17), pass through the first axis pin on the swivel nut (18) of both sides
(21) there are two the identical connecting rod of length (22), two connecting rods (22) are arranged in a crossed manner for rotation connection, and pass through the in point of intersection
Two axis pins (23) are rotatablely connected, the upper end rotation connection sliding block (25) of connecting rod (22), under the corresponding sealing plate (14) of sliding block (25)
Side opens up sliding slot (24), and sliding block (25) is fastened in sliding slot (24), is moved horizontally in sliding slot (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810579106.XA CN108657572B (en) | 2018-06-07 | 2018-06-07 | Equipment containing box with air blowing and dust removing functions for physical experiments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810579106.XA CN108657572B (en) | 2018-06-07 | 2018-06-07 | Equipment containing box with air blowing and dust removing functions for physical experiments |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108657572A true CN108657572A (en) | 2018-10-16 |
| CN108657572B CN108657572B (en) | 2020-06-30 |
Family
ID=63775573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810579106.XA Expired - Fee Related CN108657572B (en) | 2018-06-07 | 2018-06-07 | Equipment containing box with air blowing and dust removing functions for physical experiments |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108657572B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109484755A (en) * | 2018-12-25 | 2019-03-19 | 苏州驰彭电子科技有限公司 | A kind of cylinder accurate device storing unit |
| CN110171623A (en) * | 2019-05-27 | 2019-08-27 | 郑州大学第一附属医院 | A kind of kidney transplant specimen storage device |
| CN111689045A (en) * | 2020-06-19 | 2020-09-22 | 杜燕 | Telescopic drawing appliance containing box |
| CN113306852A (en) * | 2021-05-10 | 2021-08-27 | 广东白云学院 | Agricultural product logistics information tracking device |
| CN113306860A (en) * | 2021-05-27 | 2021-08-27 | 彭志山 | Storage box for level precision instrument and meter |
| CN113320821A (en) * | 2021-06-16 | 2021-08-31 | 佛山市益瑞康暖通配件有限公司 | Material collecting device and method for condenser copper pipe production |
| CN113753383A (en) * | 2021-08-20 | 2021-12-07 | 江西乐富军工装备有限公司 | Loading box based on novel carbon-based composite material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109484755A (en) * | 2018-12-25 | 2019-03-19 | 苏州驰彭电子科技有限公司 | A kind of cylinder accurate device storing unit |
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| CN111689045A (en) * | 2020-06-19 | 2020-09-22 | 杜燕 | Telescopic drawing appliance containing box |
| CN113306852A (en) * | 2021-05-10 | 2021-08-27 | 广东白云学院 | Agricultural product logistics information tracking device |
| CN113306860A (en) * | 2021-05-27 | 2021-08-27 | 彭志山 | Storage box for level precision instrument and meter |
| CN113320821A (en) * | 2021-06-16 | 2021-08-31 | 佛山市益瑞康暖通配件有限公司 | Material collecting device and method for condenser copper pipe production |
| CN113753383A (en) * | 2021-08-20 | 2021-12-07 | 江西乐富军工装备有限公司 | Loading box based on novel carbon-based composite material |
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| Publication number | Publication date |
|---|---|
| CN108657572B (en) | 2020-06-30 |
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