CN113734586B - Protection mechanism for leakage harmonic wave shielding device - Google Patents

Protection mechanism for leakage harmonic wave shielding device Download PDF

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Publication number
CN113734586B
CN113734586B CN202110980536.4A CN202110980536A CN113734586B CN 113734586 B CN113734586 B CN 113734586B CN 202110980536 A CN202110980536 A CN 202110980536A CN 113734586 B CN113734586 B CN 113734586B
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CN
China
Prior art keywords
shielding device
box body
pipeline
clamping
clamping assembly
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Active
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CN202110980536.4A
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Chinese (zh)
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CN113734586A (en
Inventor
钟如龙
姜海
郑智军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Meijuorange Digital Technology Development Co ltd
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Anhui Meijuorange Digital Technology Development Co ltd
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Priority to CN202110980536.4A priority Critical patent/CN113734586B/en
Publication of CN113734586A publication Critical patent/CN113734586A/en
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Publication of CN113734586B publication Critical patent/CN113734586B/en
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    • 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
    • B65D25/10—Devices to locate articles in containers
    • B65D25/101—Springs, elastic lips, or other resilient elements to locate the articles by pressure
    • 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
    • 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
    • B65D55/00—Accessories for container closures not otherwise provided for
    • B65D55/02—Locking devices; Means for discouraging or indicating unauthorised opening or removal of closure
    • 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
    • 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
    • B65D85/68—Containers, packaging elements or packages, specially adapted for particular articles or materials for machines, engines or vehicles in assembled or dismantled form
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/40—Arrangements for reducing harmonics

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Abstract

The invention discloses a protection mechanism for a leakage harmonic wave shielding device, which relates to the technical field of electronic equipment protection and comprises a box body, a box cover, a locking mechanism, a clamping assembly I, a clamping assembly II, a lifting plate and a switching assembly.

Description

Protection mechanism for leakage harmonic wave shielding device
Technical Field
The invention relates to the technical field of electronic equipment protection, in particular to a protection mechanism for a leakage harmonic wave shielding device.
Background
After the production is accomplished to electric leakage harmonic wave shield assembly, need transport to each sales department through placing the case and sell, at present, when transportation electric leakage harmonic wave shield assembly, most place the case and do not have tight function, when the road surface through the rugged road surface, electric leakage harmonic wave shield assembly produces the condition of collision or slope easily, damages electric leakage harmonic wave shield assembly easily, the some has the case of placing of pressing from both sides tight function, it presss from both sides tightly to need manual operation, it is inconvenient to use, and waste time and energy.
Disclosure of Invention
The present invention is directed to a protection mechanism for a leakage harmonic shielding device, so as to solve the above-mentioned drawbacks caused by the prior art.
The utility model provides a protection machanism for electric leakage harmonic shield assembly, includes the box and with box articulated case lid, connect through locking mechanical system between box and the case lid, be equipped with clamping assembly one, clamping assembly two and lifter plate in the box, be equipped with the switching component between lifter plate and the clamping assembly two, the in-process drive that the lifter plate moves down a pair of electric leakage harmonic shield assembly fore-and-aft direction of clamping assembly presss from both sides tightly, and the lifter plate moves down the back, the in-process drive that the case lid was closed the direction is pressed from both sides tightly about the two pairs of electric leakage harmonic shield assembly of clamping assembly, and the lifter plate moves the back upward, the in-process that the case lid was closed does not drive clamping assembly and presss from both sides tightly two pairs of electric leakage harmonic shield assembly.
Preferably, the first clamping assembly comprises a pair of first clamping plates arranged along the front-back direction, a first pipeline and a first piston cylinder are arranged in the box body, one end of the first pipeline is connected with the first piston cylinder, the other end of the first pipeline is connected with a first push-pull rod connected with the first clamping plates in a sliding mode, a first piston head is connected in the first piston cylinder in a sliding mode, a first piston rod connected with the bottom of the lifting plate is arranged on the first piston head, a first compression spring is arranged in the first piston cylinder, and the first compression spring is located below the first piston head.
Preferably, the switching assembly comprises a third pipeline installed in the box body, two ends of the third pipeline are connected with adjusting rods in a sliding mode, one adjusting rod is fixedly connected with the bottom of the lifting plate, and the other adjusting rod is connected in a through pipe of the second clamping assembly in a sliding mode.
Preferably, the second clamping assembly comprises a pair of second clamping plates arranged along the left and right direction, a through pipe, a second pipeline and a second piston cylinder are arranged in the box body, an opening is formed in the through pipe, one end of the through pipe is connected with the adjusting rod in a sliding mode, the other end of the through pipe is connected with a push rod in a sliding mode, a hinge rod is hinged to the box cover, the other end of the hinge rod is hinged to the push rod, one end of the second pipeline is connected with the second piston cylinder, the other end of the second pipeline is connected with the through pipe, a second piston head is connected with the second piston cylinder in a sliding mode, a second push-pull rod connected with the second clamping plates is arranged on the second piston head, and a second compression spring is arranged in the second piston cylinder and located on one side, close to the second clamping plates, of the second piston head.
Preferably, the locking mechanism comprises a locking pin slidably connected with the box body, a return spring is sleeved on the locking pin, a clamping block is arranged on the box cover, a locking hole matched with the locking pin is formed in the clamping block, and a handle is arranged on the locking pin.
Preferably, a guide groove is formed in the box body, and a guide pillar in sliding fit with the guide groove is arranged at the bottom of the lifting plate.
The invention has the advantages that: (1) The electric leakage harmonic wave shielding device is placed in the box body, the electric leakage harmonic wave shielding device presses the lifting plates to move downwards, the clamping grooves of the electric leakage harmonic wave shielding device are clamped in the box body between the two lifting plates, the lifting plates are driven to clamp the front and back directions of the electric leakage harmonic wave shielding device by the clamping plates in the process of moving downwards, the adjusting rods are driven to plug the opening, at the same time, the box cover is closed, and the left and right directions of the electric leakage harmonic wave shielding device are clamped by the clamping plates, so that the electric leakage harmonic wave shielding device is automatically clamped;
(2) When the leakage harmonic wave shielding device is not placed, the first clamping plate and the second clamping plate are close to the inner wall of the box body, so that the placement of other articles cannot be influenced, the opening of the through pipe is in an open state because the lifting plate does not move downwards, and the second clamping plate does not move when the box cover is closed, so that the placement of the articles in the box body cannot be influenced;
(3) Through setting up locking mechanical system, the case lid is opened and closed of being convenient for, and promotes through compressed air between the pressure strip one in this device and the pressure strip two, therefore it receives when the striking, also has a buffering, can further protect electric leakage harmonic shield assembly.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a front sectional view of the present invention.
FIG. 3 is a schematic view of the second clamping assembly, the cover and the switching mechanism of the present invention.
Fig. 4 is a front sectional view of fig. 3.
Fig. 5 is an enlarged schematic view of point a in fig. 2.
Fig. 6 is an enlarged schematic view of point B in fig. 2.
Fig. 7 is a schematic structural diagram of the leakage harmonic shielding apparatus of the present invention.
The device comprises a box body 1, a box cover 11, a guide groove 12, a locking mechanism 2, a locking pin 21, a return spring 22, a clamping block 23, a locking hole 231, a handle 24, a lifting plate 3, a clamping assembly I4, a clamping plate I41, a pipeline I42, a piston cylinder I43, a piston rod I44, a piston head I45, a compression spring I46, a push-pull rod I47, a switching assembly 5, a pipeline III 51, a regulating rod 52, a clamping assembly II 6, a clamping plate II 61, a through pipe 62, an opening 621, a pipeline II 63, a piston cylinder II 64, a piston head II 65, a compression spring II 66, a push-pull rod II 67, a hinge rod 68, a push rod 69, a guide post 7, an electric leakage harmonic shielding device 8 and a clamping groove 81.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained by combining the specific embodiments.
As shown in fig. 1 to 7, a protection mechanism for an electric leakage harmonic shielding device includes a box body 1 and a box cover 11 hinged to the box body 1, the box body 1 and the box cover 11 are connected through a locking mechanism 2, a first clamping assembly 4, a second clamping assembly 6 and a lifting plate 3 are arranged in the box body 1, a switching assembly 5 is arranged between the lifting plate 3 and the second clamping assembly 6, the lifting plate 3 is driven in the downward moving process to clamp the front and rear directions of the electric leakage harmonic shielding device 8 by the first clamping assembly 4, and the lifting plate 3 is driven in the downward moving process to clamp the electric leakage harmonic shielding device 8 by the second clamping assembly 6, and the lifting plate 3 is driven in the closing process to clamp the electric leakage harmonic shielding device 8 in the left and right directions and to move upward and then to not drive the second clamping assembly 6 to clamp the electric leakage harmonic shielding device 8 in the closing process of the box cover 11.
In this embodiment, the first clamping assembly 4 includes a pair of first clamping plates 41 arranged along the front-back direction, a first pipeline 42 and a first piston cylinder 43 are arranged in the box 1, one end of the first pipeline 42 is connected with the first piston cylinder 43, the other end of the first pipeline is slidably connected with a first push-pull rod 47 connected with the first clamping plate 41, a first piston head 45 is slidably connected in the first piston cylinder 43, a first piston rod 44 connected with the bottom of the lifting plate 3 is arranged on the first piston head 45, a first compression spring 46 is arranged in the first piston cylinder 43, the first compression spring 46 is located below the first piston head 45, the lifting plate 3 moves down to drive the first piston rod 44 to move down, the first compression spring 46 contracts, and the first push-pull rod 47 pushes the first clamping plates 41 to clamp the front-back direction of the electric leakage harmonic shielding device 8.
In this embodiment, the switching component 5 includes a third pipeline 51 installed in the box 1, two ends of the third pipeline 51 are both connected with adjusting rods 52 in a sliding manner, one of the adjusting rods 52 is fixedly connected with the bottom of the lifting plate 3, the other adjusting rod 52 is connected in the through pipe 62 of the second clamping component 6 in a sliding manner, the lifting plate 3 moves down to drive the adjusting rod 52 connected therewith to move down, the other adjusting rod 52 moves up to block the opening of the through pipe 62, at this time, the box cover 11 rotates to drive the two pairs of electric leakage harmonic shielding devices 8 of the pressing component to compress tightly, the lifting plate 3 moves up to drive the adjusting rod 52 connected therewith to move up, the other adjusting rod 52 moves down, the opening of the through pipe 62 is in an open state, and at this time, the box cover 11 rotates to be unable to drive the two pairs of electric leakage harmonic shielding devices 8 of the pressing component to compress tightly.
In this embodiment, the second clamping assembly 6 includes a pair of second clamping plates 61 arranged along the left-right direction, a through pipe 62, a second pipeline 63, and a second piston cylinder 64 are arranged in the box body 1, the through pipe 62 is provided with an opening communicated with the outside, one end of the through pipe 62 is slidably connected with the adjusting rod 52, the other end of the through pipe 62 is slidably connected with a push rod 69, the box cover 11 is hinged with a hinge rod 68, the other end of the hinge rod 68 is hinged with the push rod 69, one end of the second pipeline 63 is connected with the second piston cylinder 64, the other end of the second pipeline is connected with the through pipe 62, the second piston cylinder 64 is slidably connected with the second piston head 65, the second piston head 65 is provided with a second push-pull rod 67 connected with the second clamping plates 61, the second piston cylinder 64 is provided with a second compression spring 66, the second compression spring 66 is located on one side of the second piston head 65 close to the second clamping plates 61, the box cover 11 rotates to drive the hinge rod 68 to rotate, the hinge rod 68 to drive the push rod 69 to slide in the through pipe 62, when the opening is blocked, the second piston head 62 pushes the second piston 65, the second push rod 67, the second clamping plates 67 and the second clamping plates 61 to move, so as to block the leakage harmonic shielding device 8, and the left-right clamping plate opening, the clamping plate 62, and the clamping plate opening is not blocked, and the clamping plate 62 is not moved, and the through pipe 62.
In this embodiment, the locking mechanism 2 includes a locking pin 21 slidably connected to the box body 1, a return spring 22 is sleeved on the locking pin 21, a latch 23 is disposed on the box cover 11, a locking hole 231 adapted to the locking pin 21 is disposed on the latch 23, a handle 24 is disposed on the locking pin 21, when the box cover 11 is closed, the locking pin 21 is inserted into the locking hole 231 of the latch 23 to lock the box cover 11, the locking pin 21 is pulled by the handle 24, the return spring 22 is compressed, the locking pin 21 leaves the locking hole 231, the box cover 11 is in an unlocked state, the handle 24 is released, the return spring 22 is reset, the locking pin 21 is inserted into the locking hole 231, and the box cover 11 is in a locked state, so as to facilitate opening or closing of the box cover 11.
In this embodiment, a guide groove 12 is provided in the box body 1, a guide post 7 slidably engaged with the guide groove 12 is provided at the bottom of the lifting plate 3, and the guide post 7 and the guide groove 12 can support and guide the lifting of the lifting plate 3.
The working process of the invention is as follows: placing the leakage harmonic shielding device 8 in the box body 1, moving the lifting plates 3 downwards under the action of gravity of the leakage harmonic shielding device 8, clamping the clamping grooves 81 of the leakage harmonic shielding device 8 into the box body 1 between the two lifting plates 3, moving the lifting plates 3 downwards to drive the piston rods 44 and the adjusting rods 52 connected with the piston rods to move downwards, pushing and pulling the push-pull rods 47 to push the clamping plates 41 to clamp the leakage harmonic shielding device 8 in the front-back direction, moving the other adjusting rod 52 upwards to block the opening of the through pipe 62, then rotating the box cover 11, rotating the box cover 11 to drive the hinge rods 68 to rotate, driving the push rods 69 to slide in the through pipe 62 by the hinge rods 68, pushing the piston heads 65, the push-pull rods 67 and the clamping plates 61 to move by gas in the through pipes 63, clamping the leakage harmonic shielding device 8 in the left-right direction, and inserting the locking pins 21 into the locking holes 231 to complete locking of the box cover 11;
when the leakage harmonic wave shielding device 8 does not need to be placed, the lifting plate 3 resets, as long as the placed object does not press down the lifting plate 3, the first clamping plate 41 cannot clamp the object in the box body 1, meanwhile, the opening is not blocked, when the box cover 11 is rotated, the gas in the through pipe 62 is discharged through the opening, and the second clamping plate 61 is not moved, so that the placement of other objects is not influenced.
The leakage harmonic shielding device 8 is placed in the box body 1, the leakage harmonic shielding device 8 presses the lifting plates 3 to move downwards, the clamping grooves 81 of the leakage harmonic shielding device 8 are clamped in the box body 1 between the two lifting plates 3, the first clamping plate 41 is driven to clamp the front and back directions of the leakage harmonic shielding device 8 in the process that the lifting plates 3 move downwards, the adjusting rod 52 is driven to block the opening, at the same time, the box cover 11 is closed, and the second clamping plate 61 clamps the left and right directions of the leakage harmonic shielding device 8, so that the leakage harmonic shielding device 8 is automatically clamped;
when the leakage harmonic wave shielding device 8 is not placed, the first clamping plate 41 and the second clamping plate 61 are close to the inner wall of the box body 1, so that the placement of other articles cannot be influenced, and the opening of the through pipe 62 is in an open state because the lifting plate 3 does not move downwards, so that when the box cover 11 is closed, the second clamping plate 61 does not move, and the placement of the articles in the box body 1 cannot be influenced;
through setting up locking mechanical system 2, the case lid 11 is opened and closed of being convenient for, and promotes through compressed air between the pressure strip one in this device and the pressure strip two, therefore it receives the striking, also has a buffering, can further protect electric leakage harmonic shield assembly 8.
It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the invention are intended to be embraced therein.

Claims (3)

1. A protection mechanism for electric leakage harmonic shielding device, its characterized in that: the leakage harmonic wave shielding device comprises a box body (1) and a box cover (11) hinged to the box body (1), wherein the box body (1) and the box cover (11) are connected through a locking mechanism (2), a first clamping assembly (4), a second clamping assembly (6) and a lifting plate (3) are arranged in the box body (1), a switching assembly (5) is arranged between the lifting plate (3) and the second clamping assembly (6), the first clamping assembly (4) is driven to clamp the front and back directions of the leakage harmonic wave shielding device (8) in the downward moving process of the lifting plate (3), the second clamping assembly (6) is driven to clamp the left and right directions of the leakage harmonic wave shielding device (8) in the closing process of the box cover (11) after the lifting plate (3) moves upwards, and the second clamping assembly (6) is not driven to clamp the leakage harmonic wave shielding device (8) in the closing process of the box cover (11);
the first clamping assembly (4) comprises a pair of first clamping plates (41) arranged in the front-back direction, a first pipeline (42) and a first piston cylinder (43) are arranged in the box body (1), one end of the first pipeline (42) is connected with the first piston cylinder (43), the other end of the first pipeline (42) is connected with a first push-pull rod (47) connected with the first clamping plates (41) in a sliding mode, a first piston head (45) is connected in the first piston cylinder (43) in a sliding mode, a first piston rod (44) connected with the bottom of the lifting plate (3) is arranged on the first piston head (45), a first compression spring (46) is arranged in the first piston cylinder (43), and the first compression spring (46) is located below the first piston head (45);
the switching assembly (5) comprises a third pipeline (51) arranged in the box body (1), two ends of the third pipeline (51) are connected with adjusting rods (52) in a sliding mode, one adjusting rod (52) is fixedly connected with the bottom of the lifting plate (3), and the other adjusting rod (52) is connected in a through pipe (62) of the second clamping assembly (6) in a sliding mode;
the second clamping assembly (6) comprises a pair of second clamping plates (61) arranged in the left-right direction, a through pipe (62), a second pipeline (63) and a second piston cylinder (64) are arranged in the box body (1), an opening is formed in the through pipe (62), one end of the through pipe (62) is connected with the adjusting rod (52) in a sliding mode, the other end of the through pipe is connected with a push rod (69) in a sliding mode, a hinged rod (68) is hinged to the box cover (11), the other end of the hinged rod (68) is hinged to the push rod (69), one end of the second pipeline (63) is connected with the second piston cylinder (64), the other end of the second pipeline is connected with the through pipe (62), a second piston head (65) is connected in the second piston cylinder (64) in a sliding mode, a second push-pull rod (67) connected with the second clamping plates (61) is arranged on the second piston head (65), a second compression spring (66) is arranged in the second piston cylinder (64), and the second compression spring (66) is located on one side, close to the second clamping plates (61), of the second piston head (65).
2. A protection mechanism for a leakage harmonic shield according to claim 1, characterized in that: locking mechanical system (2) including with box (1) sliding connection's stop pin (21), reset spring (22) have been cup jointed on stop pin (21), be equipped with fixture block (23) on case lid (11), be equipped with locking hole (231) with stop pin (21) looks adaptation on fixture block (23), be equipped with handle (24) on stop pin (21).
3. A protection mechanism for a leaky harmonic shielding device as claimed in claim 2, wherein: a guide groove (12) is formed in the box body (1), and a guide post (7) in sliding fit with the guide groove (12) is arranged at the bottom of the lifting plate (3).
CN202110980536.4A 2021-08-25 2021-08-25 Protection mechanism for leakage harmonic wave shielding device Active CN113734586B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110980536.4A CN113734586B (en) 2021-08-25 2021-08-25 Protection mechanism for leakage harmonic wave shielding device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110980536.4A CN113734586B (en) 2021-08-25 2021-08-25 Protection mechanism for leakage harmonic wave shielding device

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CN113734586A CN113734586A (en) 2021-12-03
CN113734586B true CN113734586B (en) 2023-03-21

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CN108820556A (en) * 2018-06-29 2018-11-16 重庆婉婷科技发展有限公司 A kind of packing box
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