CN112918921A - Corrugated carton with internal and external waterproof functions - Google Patents
Corrugated carton with internal and external waterproof functions Download PDFInfo
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- CN112918921A CN112918921A CN202110101877.XA CN202110101877A CN112918921A CN 112918921 A CN112918921 A CN 112918921A CN 202110101877 A CN202110101877 A CN 202110101877A CN 112918921 A CN112918921 A CN 112918921A
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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
- 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
- B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
- B65D81/26—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators
- B65D81/261—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for draining or collecting liquids without absorbing them
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
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Abstract
The invention provides an internally and externally waterproof corrugated carton, wherein an outer box is arranged on the outer side of a box body, inner cavities are embedded into two sides of the inner part of the box body, a water collecting frame is movably connected in the outer box in a nested manner, a sealing cover is folded at the upper end of the box body, a water inlet hole penetrates through the inner part of the sealing cover, a water guiding frame is arranged at the lower end of the sealing cover in a staggered manner, a folding pipe penetrates through one side of the water guiding frame, which is close to the box body, water flow enters the inner part of a water inlet tank through the folding pipe, when, because the flow guide frame penetrates through one side of the water inlet groove, water flow can fall to the upper end of the fan blade penetrating through the outer side of the shaft through the flow guide frame, and then can form the impact through rivers to the outside of flabellum, and the inside of flabellum runs through there is the through groove, runs through inboard guide plate of inslot and can further increase rivers and strike the flabellum is whole for the flabellum can utilize rivers to drive in the outside rotation that runs through the axle.
Description
Technical Field
The invention relates to the technical field of carton processing, in particular to an internally and externally waterproof corrugated carton.
Background
The corrugated paper board is made into a corrugated paper box through die cutting, indentation, box nailing or box gluing, the corrugated paper box is a packaging product with the widest application, and the consumption is always the first of various packaging products, including calcium plastic corrugated paper boxes;
about corrugated box, through search discovery, there is a corrugated box of patent No. CN201811080860.5 for preventing liquid from immersing, the sealing ring effectively blocks outside water vapor from entering the corrugated box, the water resistance of the corrugated box main body can be well improved, the lamp separation layer can classify articles, the buffer plate can make the corrugated box main body firmer and non-deformable when the corrugated box main body is impacted by external force, and the development prospect in the future is wide;
can learn through above-mentioned file, carry out waterproof through the sealing washer to corrugated box, when a large amount of rivers dropped to the corrugated box outside, corrugated box is whole easily to be soaked in the clear water inboard, leads to the whole water-proof effects of corrugated box relatively poor, and corrugated box is inconvenient to be collected rivers to utilize the impact that rivers drove to further protect corrugated box outside, lead to corrugated box water-proof effects relatively poor.
Disclosure of Invention
In order to solve the above technical problems, the present invention provides an internally and externally waterproof corrugated carton, which solves the problems described in the above background art.
The purpose and the effect of the corrugated case with internal and external water resistance are achieved by the following specific technical means: the utility model provides an inside and outside waterproof corrugated carton, includes the box, the outer container is installed in the outside of box, the inside both sides embedding of box has the inner chamber, the inside activity nested connection of outer container has the frame that catchments, the upper end of box is folding to have sealed lid, the inside of sealed lid is run through there is the inlet opening, the lower extreme of sealed lid has the water guide frame according to the mistake, one side that the water guide frame is close to the box is run through there is the folding pipe.
Preferably, the inner chamber link up with the inside of frame that catchments, the frame that catchments is horizontal "T" form setting, and the inlet opening is and leaks hopper-shaped setting, and the inlet opening link up with folding pipe through the water guide frame, and folding pipe is wavy setting.
Preferably, a through shaft is rotatably arranged at one side of the upper end in the inner cavity close to the folding pipe, a fan blade is rotatably arranged at the outer side of the through shaft, a water inlet groove is embedded in one side of the fan blade, a flow guide frame is penetrated through one side of the water inlet groove, a through groove is penetrated through the inner side of the fan blade, a guide plate is arranged at the inner side of the through groove, a disc is rotatably arranged at one side of the through shaft close to the outer box, a first bearing is rotatably arranged at one end of the inner side of the disc, an upper connecting rod is swung at the lower end of the first bearing, a lower connecting rod is swung at the lower end of the upper connecting rod through the first bearing, a fixed bearing is swung at the lower end of the lower connecting rod, a driving frame is swung at the upper end of the first bearing, a second bearing is rotatably arranged at one side of the inner cavity close to the driving frame, a blade is arranged at one side of the second bearing, the screw rod is spirally connected inside the sleeve, a push rod is movably and rotatably arranged at one end of the screw rod, a sliding plate is arranged at the lower end of the push rod in a sliding mode, an accommodating plate is arranged on one side of the sliding plate, and a telescopic plate is movably connected to the inner side of the accommodating plate in a nested mode.
Preferably, the fan blades are arranged in a cross shape integrally, the water inlet groove is vertically and correspondingly arranged with one end of the folding pipe, the diversion frame is arranged in an inclined manner at 15-45 degrees, the clean water enters the inner side of the through groove through the water inlet groove and the diversion frame, and the diversion plate is arranged in an inclined manner at 25-45 degrees.
Preferably, when the through shaft is 360 rotations, the disc is synchronous rotation, and the disc is the ring form setting, and first bearing is 360 rotations in one side of disc simultaneously, because connecting rod and lower connecting rod are installed to the lower extreme of first bearing, and lower connecting rod uses fixed bearing to be the angle swing as the fulcrum, and then drives to put up and be horizontal hunting in the upper end of first bearing.
Preferably, the blades are arranged in a triangular shape, the interval between the blades is 1-5cm, and when the driving frame swings, the blades swing at 90 degrees on the outer side of the second bearing.
Preferably, the push rod is arranged in an inverted L shape, when the second bearing rotates by 90 degrees, the screw rod and the sleeve move horizontally and spirally, meanwhile, the push rod slides horizontally, and the expansion plate slides to the outer side of the box body.
Preferably, the accommodating plate is arranged in an inclined manner at an angle of 15-25 degrees, the inner side of the accommodating plate is arranged in a hollow manner, and the accommodating plate and the expansion plate slide in an inclined manner.
Has the advantages that:
1. when water is arranged at the upper end of the sealing cover, water flow respectively enters the interior of the water collecting frame through the water inlet holes, and the water collecting frame can enter the interior of the inner cavity 102 through the folding pipe, so that the upper end of the corrugated carton can achieve the effects of collection and water prevention, and the water flow is prevented from entering the interior of the box body;
2. when water flow enters the water inlet groove through the folding pipe, the water flow can fall to the upper end of the fan blade penetrating the outer side of the shaft through the guide frame due to the fact that the guide frame penetrates through one side of the water inlet groove, impact can be further formed on the outer side of the fan blade through the water flow, the penetrating groove penetrates through the inner portion of the fan blade, the guide plate on the inner side of the penetrating groove can further increase the overall impact of the water flow on the fan blade, and the fan blade can be driven to rotate on the outer side of the penetrating shaft through the water flow;
3. the penetrating shaft drives the disc to rotate when rotating, because the first bearing is arranged on one side of the disc, the upper connecting rod and the lower connecting rod at the lower end of the first bearing swing in an angle mode by taking the fixed bearing as a fulcrum, and further the driving frame swings in a left-right reciprocating mode at the upper end of the first bearing, and because the blades are arranged in a triangular mode and gaps are arranged among the blades, the driving frame can swing in a left-right mode on the inner side of the blades, then the blades are driven by the driving frame to swing in an angle mode with the second bearing, the second bearing rotates to drive the sleeve to rotate, the sleeve rotates to drive the screw rod to horizontally and spirally move in the box body, the screw rod moves to drive the sliding plate to horizontally move through the push rod, because the expansion plate and the containing plate are arranged on the inner side of the box body, the expansion plate drives the expansion plate to extend to the outer side of the box body, the waterproof effect is achieved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
FIG. 2 is a schematic cross-sectional view of the case according to the present invention.
FIG. 3 is an enlarged view of the structure at A in FIG. 2 according to the present invention.
FIG. 4 is a front view of the penetrating shaft according to the present invention.
Fig. 5 is a schematic view of the disc assembly of the present invention.
Fig. 6 is a schematic view of a second bearing assembly according to the present invention.
FIG. 7 is an enlarged view of the structure at B in FIG. 2 according to the present invention.
Fig. 8 is a schematic view of a receiver plate assembly according to the present invention.
In fig. 1 to 8, the correspondence between the component names and the reference numbers is:
1-box body, 101-outer box, 102-inner cavity, 103-water collecting frame, 2-sealing cover, 201-water inlet hole, 202-water guiding frame, 203-folding pipe, 3-penetrating shaft, 301-fan blade, 302-water inlet groove, 303-water guiding frame, 304-penetrating groove, 305-guide plate, 4-disc, 401-first bearing, 402-upper connecting rod, 403-lower connecting rod, 404-fixed bearing, 405-driving frame, 5-second bearing, 501-blade, 502-sleeve, 503-screw rod, 6-push rod, 601-sliding plate, 602-containing plate and 603-expansion plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
Example (b):
as shown in figures 1 to 8:
example 1: an outer box 101 is installed on the outer side of a box body 1, an inner cavity 102 is embedded into two sides of the interior of the box body 1, a water collecting frame 103 is movably connected in a nested manner in the interior of the outer box 101, a sealing cover 2 is folded at the upper end of the box body 1, a water inlet hole 201 penetrates through the interior of the sealing cover 2, a water guiding frame 202 is arranged at the lower end of the sealing cover 2 in a staggered manner, a folding pipe 203 penetrates through one side, close to the box body 1, of the water guiding frame 202, the inner cavity 102 is communicated with the interior of the water collecting frame 103, the water collecting frame 103 is arranged in a transverse T shape, the water inlet hole 201 is arranged in a funnel shape, the water inlet hole 201 is communicated with the folding pipe 203;
wherein: when water is arranged at the upper end of the sealing cover 2, water flow respectively enters the inside of the water collecting frame 103 through the water inlet holes 201, and the water collecting frame 103 can enter the inside of the inner cavity 102 through the folding pipe 203, so that the upper end of the corrugated carton can achieve the effects of collection and water prevention, and the water flow is prevented from entering the inside of the box body 1;
example 2: an outer box 101 is installed on the outer side of a box body 1, an inner cavity 102 is embedded into two sides of the inner part of the box body 1, a water collecting frame 103 is movably connected in an embedded mode in the outer part of the outer box 101, a sealing cover 2 is folded at the upper end of the box body 1, a water inlet hole 201 is penetrated through the inner part of the sealing cover 2, a water guide frame 202 is arranged at the lower end of the sealing cover 2 in a staggered mode, a folding pipe 203 is penetrated through one side, close to the box body 1, of the water guide frame 202, a penetrating shaft 3 is rotatably arranged at one side, close to the folding pipe 203, of the upper end of the inner part of the inner cavity 102, a fan blade 301 is rotatably arranged at the outer side of the penetrating shaft 3, a water inlet groove 302 is embedded into one side of the fan blade 301, a flow guide frame 303 is penetrated through one side of the water inlet groove 302, a penetrating groove 304 is penetrated through the inner side of the fan blade 301, a flow guide plate 305 is installed at, the lower end of the upper connecting rod 402 is provided with a lower connecting rod 403 through a first bearing 401 in a swinging manner, the lower end of the lower connecting rod 403 is provided with a fixed bearing 404 in a swinging manner, the upper end of the first bearing 401 is provided with a driving frame 405 in a swinging manner, one side of the inner cavity 102 close to the driving frame 405 is provided with a second bearing 5 in a rotating manner, one side of the second bearing 5 close to the driving frame 405 is provided with a blade 501, one side of the second bearing 5 far away from the blade 501 is provided with a sleeve 502, the inside of the sleeve 502 is spirally connected with a screw 503, one end of the screw 503 is movably provided with a push rod 6 in a rotating manner, the lower end of the push rod 6 is provided with a sliding plate 601 in a sliding manner, one side of the sliding plate 601 is provided with an accommodating plate 602, the inner side of the accommodating plate 602 is movably connected with a telescopic plate 603 in a nested manner, the fan blades 301 are integrally arranged in, the guide plate 305 is arranged in an inclined manner at an angle of 25-45 degrees;
wherein: the water flow enters the inside of the water inlet groove 302 through the folding pipe 203, when the water flow enters the water inlet groove 302, the guide frame 303 penetrates through one side of the water inlet groove 302, so that the water flow can fall to the upper end of the fan blade 301 penetrating through the outer side of the shaft 3 through the guide frame 303, and then impact can be formed on the outer side of the fan blade 301 through the water flow, the penetrating groove 304 penetrates through the inside of the fan blade 301, the guide plate 305 inside the penetrating groove 304 can further increase the overall impact of the water flow on the fan blade 301, and the fan blade 301 can be driven to rotate on the outer side of the penetrating shaft 3 by the water flow;
example 3: a through shaft 3 is rotatably arranged at one side of the upper end of the inner cavity 102 close to the folding pipe 203, a fan blade 301 is rotatably arranged at the outer side of the through shaft 3, a water inlet groove 302 is embedded at one side of the fan blade 301, a flow guide frame 303 is penetrated at one side of the water inlet groove 302, a through groove 304 is penetrated at the inner side of the fan blade 301, a guide plate 305 is arranged at the inner side of the through groove 304, a disc 4 is rotatably arranged at one side of the through shaft 3 close to the outer box 101, a first bearing 401 is rotatably arranged at one end of the inner side of the disc 4, an upper connecting rod 402 is swung at the lower end of the first bearing 401, a lower connecting rod 403 is swung by the first bearing 401, a fixed bearing 404 is swung at the lower end of the lower connecting rod 403, a driving frame 405 is swung at the upper end of the first bearing 401, a second bearing 5 is rotatably arranged at one side of the inner cavity 102 close to the driving frame 405, a blade 501 is arranged at one side, the interior of the sleeve 502 is spirally connected with a screw 503, one end of the screw 503 is movably rotated with a push rod 6, the lower end of the push rod 6 is slid with a sliding plate 601, one side of the sliding plate 601 is provided with a containing plate 602, the inner side of the containing plate 602 is movably connected with a telescopic plate 603 in a nested manner, when the penetrating shaft 3 rotates for 360 degrees, the disc 4 rotates synchronously, the disc 4 is arranged in a circular ring shape, meanwhile, the first bearing 401 rotates for 360 degrees at one side of the disc 4, because the lower end of the first bearing 401 is provided with an upper connecting rod 402 and a lower connecting rod 403, the lower connecting rod 403 swings at an angle with the fixed bearing 404 as a fulcrum, further, the driving frame 405 swings left and right at the upper end of the first bearing 401, the blades 501 are arranged in a triangular shape, the interval between the blades 501 is 1-5cm, when the driving frame 405 swings, the blades 501 swings at 90 degrees at the outer side of the second bearing 5, the push rod, the screw 503 and the sleeve 502 move in a horizontal spiral manner, meanwhile, the push rod 6 slides horizontally, the telescopic plate 603 slides to the outer side of the box body 1, the accommodating plate 602 is arranged in an inclined manner at 15-25 degrees, the inner side of the accommodating plate 602 is arranged in a hollow manner, and the accommodating plate 602 and the telescopic plate 603 slide in an inclined manner;
wherein: the penetrating shaft 3 rotates to drive the disc 4 to rotate, because the first bearing 401 is installed at one side of the disc 4, the upper connecting rod 402 and the lower connecting rod 403 at the lower end of the first bearing 401 swing angularly with the fixed bearing 404 as a fulcrum, and further the driving frame 405 swings reciprocally left and right at the upper end of the first bearing 401, and because the blades 501 are arranged in a triangular shape and a gap is arranged between the blades 501, the driving frame 405 can swing left and right at the inner side of the blades 501, and then the blades 501 are driven by the driving frame 405 to swing angularly with the second bearing 5, the second bearing 5 can drive the sleeve 502 to rotate, when the sleeve 502 rotates, the screw 503 is driven by the driving rod 503 to move horizontally spirally inside the box 1, the screw 503 moves to drive the sliding plate 601 to move horizontally by the push rod 6, because the expansion plate 603 and the containing plate 602 are installed at the inner side of the box 1, the expansion plate 603 is driven by the sliding plate 601 to extend, and then can form the protection to the outside of box 1, avoid sewage drippage to the outside of box 1, reach waterproof effect.
The working principle is as follows: when water is arranged at the upper end of the sealing cover 2, water flow respectively enters the inside of the water collecting frame 103 through the water inlet holes 201, and the water collecting frame 103 can enter the inside of the inner cavity 102 through the folding pipes 203, so that the upper end of the corrugated carton can achieve the collecting and waterproof effects, the water flow is prevented from entering the inside of the box body 1, the water flow enters the inside of the water inlet groove 302 through the folding pipes 203, when the water flow enters the water inlet groove 302, because the flow guide frame 303 penetrates through one side of the water inlet groove 302, the water flow can fall to the upper end of the fan blade 301 outside the penetrating shaft 3 through the flow guide frame 303, and further impact can be formed on the outside of the fan blade 301 through the water flow, the penetrating groove 304 penetrates through the inside of the fan blade 301, the flow guide plate 305 inside the penetrating groove 304 can further increase the overall impact of the water flow on the fan blade 301, so that the fan blade 301 can be driven to rotate outside the, because the first bearing 401 is installed on one side of the disc 4, the upper connecting rod 402 and the lower connecting rod 403 at the lower end of the first bearing 401 swing in an angle with the fixed bearing 404 as a fulcrum, and then the driving frame 405 swings back and forth in the upper end of the first bearing 401, and because the blades 501 are arranged in a triangular shape and gaps are arranged between the blades 501, the driving frame 405 can swing back and forth in the inner side of the blades 501, and then the blades 501 are driven by the driving frame 405 to swing in an angle with the second bearing 5, the second bearing 5 can drive the sleeve 502 to rotate, when the sleeve 502 rotates, the screw 503 is driven to move in a horizontal spiral manner in the box 1, the screw 503 moves to drive the sliding plate 601 to move horizontally through the push rod 6, because the expansion plate 603 and the containing plate 602 are arranged in the inner side of the box 1, the expansion plate 603 is driven by the sliding plate 601 to extend to the outer side of the box 1, and further can, avoid sewage to drip to the outside of box 1, reach waterproof effect, the inside that uses back rivers to get into through inner chamber 102 and catchment frame 103 is collected.
Claims (8)
1. The utility model provides an inside and outside waterproof corrugated box, includes box (1), its characterized in that: outer container (101) are installed in the outside of box (1), the inside both sides embedding of box (1) has inner chamber (102), the inside activity nested connection of outer container (101) has catchment frame (103), the upper end of box (1) is folding to have sealed lid (2), the inside of sealed lid (2) is run through and is had inlet opening (201), the lower extreme of sealed lid (2) has water guide frame (202) according to the mistake, one side that water guide frame (202) are close to box (1) is run through and is had folding pipe (203).
2. The corrugated box waterproof inside and outside according to claim 1, wherein: inner chamber (102) link up with the inside of catchmenting frame (103), catchment frame (103) are horizontal "T" form and set up, and inlet opening (201) are lou hopper-shaped and set up, and inlet opening (201) link up with folding pipe (203) through water guide frame (202), and folding pipe (203) are the wavy setting.
3. The corrugated box waterproof inside and outside according to claim 1, wherein: a through shaft (3) is rotatably arranged at one side, close to a folding pipe (203), of the upper end in the inner cavity (102), a fan blade (301) is rotatably arranged at the outer side of the through shaft (3), a water inlet groove (302) is embedded into one side of the fan blade (301), a flow guide frame (303) is arranged at one side of the water inlet groove (302), a through groove (304) is arranged at the inner side of the fan blade (301), a flow guide plate (305) is arranged at the inner side of the through groove (304), a disc (4) is rotatably arranged at one side, close to an outer box (101), of the through shaft (3), a first bearing (401) is rotatably arranged at one end of the inner side of the disc (4), an upper connecting rod (402) is swung at the lower end of the first bearing (401), a lower connecting rod (403) is swung at the lower end of the upper connecting rod (402), a fixed bearing (404) is swung at the lower end of the lower connecting rod (403, the upper end swing of first bearing (401) has drive frame (405), one side rotation that inner chamber (102) is close to drive frame (405) has second bearing (5), one side that second bearing (5) are close to drive frame (405) is installed blade (501), sleeve (502) are installed to one side that blade (501) were kept away from in second bearing (5), the inside spiral connection of sleeve (502) has screw rod (503), the one end activity of screw rod (503) is rotatory to have push rod (6), the lower extreme slip of push rod (6) has sliding plate (601), holding plate (602) is installed to one side of sliding plate (601), the inboard movable nested connection who holds plate (602) has expansion plate (603).
4. The corrugated box waterproof inside and outside according to claim 3, wherein: the fan blades (301) are integrally arranged in a cross shape, the water inlet groove (302) and one end of the folding pipe (203) are vertically and correspondingly arranged, the flow guide frame (303) is inclined by 15-45 degrees, clear water enters the inner side of the through groove (304) through the water inlet groove (302) and the flow guide frame (303), and the flow guide plate (305) is inclined by 25-45 degrees.
5. The corrugated box waterproof inside and outside according to claim 3, wherein: when penetrating axle (3) is 360 rotations, disc (4) are synchronous revolution, and disc (4) are the ring form setting, and first bearing (401) is 360 rotations in one side of disc (4) simultaneously, because connecting rod (402) and lower connecting rod (403) are installed to the lower extreme of first bearing (401), lower connecting rod (403) use fixed bearing (404) to be the angular oscillation as the fulcrum, and then drive frame (405) and be the horizontal hunting in the upper end of first bearing (401).
6. The corrugated box waterproof inside and outside according to claim 3 or 5, wherein: the blades (501) are arranged in a triangular shape, the interval between the blades (501) is 1-5cm, and when the driving frame (405) swings, the blades (501) swing at 90 degrees on the outer side of the second bearing (5).
7. The corrugated box waterproof inside and outside according to claim 3, wherein: the push rod (6) is arranged in an inverted L shape, when the second bearing (5) rotates by 90 degrees, the screw rod (503) and the sleeve (502) move horizontally and spirally, the push rod (6) slides horizontally, and the expansion plate (603) slides to the outer side of the box body (1).
8. The corrugated box waterproof inside and outside according to claim 3, wherein: the accommodating plate (602) is inclined by 15-25 degrees, the inner side of the accommodating plate (602) is hollow, and the accommodating plate (602) and the expansion plate (603) slide obliquely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110101877.XA CN112918921B (en) | 2021-04-26 | 2021-04-26 | Corrugated paper box with waterproof inside and outside |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110101877.XA CN112918921B (en) | 2021-04-26 | 2021-04-26 | Corrugated paper box with waterproof inside and outside |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112918921A true CN112918921A (en) | 2021-06-08 |
| CN112918921B CN112918921B (en) | 2023-05-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110101877.XA Active CN112918921B (en) | 2021-04-26 | 2021-04-26 | Corrugated paper box with waterproof inside and outside |
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