CN217023258U

CN217023258U - Self-locking corrugated paper carton

Info

Publication number: CN217023258U
Application number: CN202122185929.4U
Authority: CN
Inventors: 高洪
Original assignee: Shanghai Gaoga Environmental Protection Packaging Material Co ltd
Current assignee: Shanghai Gaoga Environmental Protection Packaging Material Co ltd
Priority date: 2021-09-10
Filing date: 2021-09-10
Publication date: 2022-07-22
Anticipated expiration: 2031-09-10

Abstract

The utility model provides a self-locking corrugated paper box which comprises a bottom plate, a cover plate, a rear plate and a front plate, wherein the bottom plate is connected with the cover plate through the rear plate, the front end of the bottom plate is connected with the front plate, the front end of the cover plate is connected with an inserting plate, a T-shaped plug is arranged in the middle of the inserting plate, a jack for the T-shaped plug to insert is formed in the front plate, inner side plates are connected to two sides of the cover plate, outer side plates are connected to two sides of the bottom plate, and tearing belts are arranged on the front plate or the inserting plate. The carton has the advantages that the inserting plate with the self-locking function after being inserted does not need an adhesive tape, and the carton is convenient to package.

Description

Self-locking corrugated paper carton

Technical Field

The utility model belongs to the technical field of cartons, and relates to a self-locking corrugated paper carton.

Background

In present product packaging, adopt carton packing usually more, especially at the very big today of express delivery logistics demand, for the convenience carton encapsulation, adopt plastic tape to seal usually. The use of the adhesive tape not only increases the cost of sealing the box, but also causes environmental pollution because the plastic adhesive tape is difficult to be decomposed by soil due to special materials after being used and discarded. In addition, when the carton is unsealed, sharp auxiliary tools are generally required to be used for unsealing, which is very inconvenient and dangerous.

If no adhesive tape is used for sealing the box, people design a tape-free carton, such as a utility model patent of the tape-free carton with the application number of 201821408300.3 published by Chinese patent, the carton comprises a box body in a square shell shape, the upper parts of two opposite side plates of the box body are respectively connected with a sealing cover top surface through creases, the upper parts of the other two opposite side plates of the box body are respectively connected with a reinforced top surface through creases, the top edge at the upper end of the sealing cover top surface is in a Z-shaped structure, the top edges of the two sealing cover top surfaces are arranged in a mirror image manner, the top edges of the sealing cover top surfaces respectively comprise an upper top edge with a higher relative position and a lower top edge with a lower relative position, and the lower top edge is connected with a limiting part through a crease, the lower part of the rocking cover part and a side plate connected with the rocking cover part are respectively provided with a lock hole which is matched with each other, the reinforcing top surface and the sealing cover top surface are turned inwards, and the sealing cover top surface is overlapped and pressed on the reinforcing top surface to form a box cover.

The adhesive tape-free carton has no self-locking function and is easy to open by people.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems in the prior art, and provides a self-locking corrugated paper carton which does not need to be sealed by an adhesive tape and realizes the self-locking function of the carton by adopting a T-shaped plug on the carton.

The purpose of the utility model can be realized by the following technical scheme: the self-locking corrugated paper carton is characterized in that the bottom plate is connected with the cover plate through the rear plate, the front plate is connected to the front end of the bottom plate, the plug board is connected to the front end of the cover plate, a T-shaped plug is arranged in the middle of the plug board, jacks for the T-shaped plug to insert are formed in the front plate, inner side plates are connected to two sides of the cover plate, outer side plates are connected to two sides of the bottom plate, and tearing belts are arranged on the front plate or the plug board.

When the carton will be packed and sealed, insert the jack after inwards buckling with the both sides wing of T type plug in, T type plug is greater than the width of jack after expanding in the jack, can realize the auto-lock, if want to extract T type plug through external force, can open the carton through tearing the mode that brings the destruction carton of tearing to bring, tear the area of tearing after, T type plug just can extract, picture peg and front bezel can separate like this, and the carton has just been opened.

Scheme one, further, the front bezel is formed by interior locking plate and outer tear the board bending, tears the area and is located outer tear the board, and the jack is located the department of buckling of interior locking plate and outer tear the board.

Furthermore, the two sides of the T-shaped plug are provided with embedded grooves, and the jacks are connected with locking pieces which can be embedded into the embedded grooves.

After the inner lock plate and the outer tear plate are bent, the inserting plate is inserted into the inner side of the inner lock plate, a T-shaped plug on the inserting plate can be inserted into the jack of the inner lock plate, the locking sheet in the jack is positioned between the inner lock plate and the outer tear plate after being bent, and after the T-shaped plug is inserted into the jack, the locking sheet is embedded with the embedding groove in a clamping manner, so that the T-shaped plug is locked.

Furthermore, the side plate ears at one side of the outer side plate close to the inner lock plate are inserted between the outer tearing plate and the inner lock plate.

Furthermore, the outer end of the inner lock plate is connected with a plurality of clamping plates, and one end of the bottom plate close to the front plate is provided with a square hole for inserting the clamping plates.

As another scheme, the clamping plates are connected to two sides of the inner locking plate, and square holes for the clamping plates to be inserted are formed in the bending positions of the outer side plate and the side lug plates.

Furthermore, the tearing tape is a bonding type plastic tearing tape or a strip-shaped zipper-type tearing opening formed by die cutting.

Scheme two, the picture peg is formed by interior folded plate and outer folded plate bending type, tears the area and is located outer folded plate, and interior folded plate outer end is connected with a plurality of cardboard, and the apron is close to the one end of outer folded plate and opens and to have the square hole that supplies cardboard male.

Furthermore, only one side of the T-shaped plug is provided with a bent lateral wing.

Furthermore, both ends of the outer side plate are connected with side plate lugs which can be folded inwards, and one side of the inner side plate is connected with an inner inserting lug positioned in the inserting plate.

Compared with the prior art, this from locking-type corrugated paper carton has following advantage:

1. whole from locking-type corrugated paper carton formula structure as an organic whole is tailor by a rectangular corrugated container board and is formed, and the waste material is few, and save material is environmental protection more, sound construction.

2. The tearing belt is arranged on the carton, so that the carton can be destructively opened without using sharp auxiliary tools, and the harm of the sharp auxiliary tools to the articles in the carton and a user is avoided.

3. The carton has the self-locking function after insertion, does not need an adhesive tape and is convenient to package.

Drawings

Fig. 1 is an expanded view of the self-locking corrugated paper carton according to the first embodiment.

Fig. 2 is an opening view of the self-locking corrugated paper carton of the first embodiment.

Fig. 3 is an expanded view of the self-locking corrugated paper carton of the second embodiment.

Fig. 4 is an expanded view of the self-locking corrugated paper carton of the third embodiment.

Fig. 5 is an expanded view of the self-locking corrugated paper carton of the fourth embodiment.

In the figure, 1, a bottom plate; 2. a cover plate; 3. a rear plate; 4. inserting plates; 41. an inner folded plate; 42. an outer folded plate; 5. a T-shaped plug; 6. a clamping groove; 7. an inner lock plate; 8. an outer tear panel; 9. tearing the belt; 10. a jack; 11. a locking piece; 12. an inner side plate; 13. an outer panel; 14. a side plate ear; 15. inserting lugs; 16. clamping a plate; 17. and (4) square holes.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.

Example one

As shown in fig. 1 and fig. 2, the self-locking corrugated paper carton comprises a bottom plate 1, a cover plate 2, a back plate 3 and a front plate, wherein the bottom plate 1 is connected with the cover plate 2 through the back plate 3, the front plate is connected to the front end of the bottom plate 1, the front end of the cover plate 2 is connected with a plug board 4, the middle part of the plug board 4 is provided with a T-shaped plug 5, two sides of the T-shaped plug 5 are provided with a clamping groove 6, the front plate is formed by bending an inner locking plate 7 and an outer tearing plate 8, a tearing strip 9 is transversely arranged on the outer tearing plate 8, and the tearing strip 9 is a bonding plastic tearing strip or a die-cut strip-shaped zipper-type tearing opening. The middle part of the inner lock plate 7 is provided with a jack 10 for inserting the T-shaped plug 5, the jack 10 is connected with a locking sheet 11 which can be embedded into the embedding groove 6, the two sides of the cover plate 2 are connected with inner side plates 12, and the two sides of the bottom plate 1 are connected with outer side plates 13.

Two ends of the outer side plate 13 are connected with side plate ears 14 which can be folded inwards, and the side plate ears 14 at one side of the outer side plate 13 close to the inner locking plate 7 are inserted between the outer tearing plate 8 and the inner locking plate 7.

One side of the inner side plate 12 is connected with an inner inserting lug 15 positioned in the inserting plate 4, the outer end of the inner locking plate 7 is connected with a plurality of clamping plates 16, and one end of the bottom plate 1 close to the front plate is provided with a square hole 17 for the clamping plates 16 to insert.

When the carton is packaged and sealed, after the inner locking plate 7 and the outer tearing plate 8 are bent, the inserting plate 4 is inserted into the inner locking plate 7, the T-shaped plug 5 on the inserting plate 4 can be inserted into the inserting hole 10 of the inner locking plate 7, the locking piece 11 in the inserting hole 10 is positioned between the inner locking plate 7 and the outer tearing plate 8 after being bent, after the T-shaped plug 5 is inserted into the inserting hole 10, the locking piece 11 is clamped and embedded with the clamping and embedding groove 6, if the inserting plate 4 is pulled out through external force, the locking piece 11 can prevent the inserting plate 4 from being withdrawn, the self-locking function of the carton is realized, the carton can be opened by tearing the tearing belt 9 to destroy the carton, after the tearing belt 9 is torn, the inner locking plate 7 is separated from the whole carton, and the carton can be opened.

Example two

The difference from the first embodiment lies in the structure of the T-shaped plug 5 and the jack 10, as shown in fig. 3, and also the positions of the clamping plate 16 and the square hole 17, the clamping plate 16 is connected to both sides of the inner locking plate 7, and the square hole 17 for inserting the clamping plate 16 is opened at the bending part of the jack 10 and the side ear plate.

EXAMPLE III

As shown in fig. 4, the main difference from the first embodiment is the structure of the insert board 4 and the front board, the insert board 4 of the present embodiment is formed by bending an inner folded board 41 and an outer folded board 42, the tear tape 9 is located on the outer folded board 42, the outer end of the inner folded board 41 is connected with a plurality of clamping boards 16, and one end of the cover board 2 close to the outer folded board 42 is provided with a square hole 17 for inserting the clamping board 16.

Example four

As shown in fig. 5, the difference from the third embodiment lies in the structure of the T-shaped plug 5, and in order to facilitate the insertion of the T-shaped plug 5 into the jack 10, only one side of the T-shaped plug 5 has a bent side wing. In the second and third embodiments, the lateral wings are bent inwards at the left and right sides, so that two hands are needed to bend the lateral wings, and the jack 10 is difficult to insert, while in the second embodiment, only one hand is needed to bend the lateral wing at one side, and the other hand is used to insert the T-shaped plug 5 into the jack 10, so that the operation is simple.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Claims

1. The self-locking corrugated paper carton is characterized in that the bottom plate is connected with the cover plate through the rear plate, the front plate is connected to the front end of the bottom plate, the plug board is connected to the front end of the cover plate, a T-shaped plug is arranged in the middle of the plug board, jacks for the T-shaped plug to insert are formed in the front plate, inner side plates are connected to two sides of the cover plate, outer side plates are connected to two sides of the bottom plate, and tearing belts are arranged on the front plate or the plug board.

2. The self-locking corrugated carton as recited in claim 1, wherein the front panel is formed by bending an inner locking panel and an outer tearing panel, the tearing strip is located on the outer tearing panel, and the insertion hole is located at the bending position of the inner locking panel and the outer tearing panel.

3. The self-locking corrugated carton of claim 2, wherein the side tab of the outer side panel on the side adjacent the inner lock panel is inserted between the outer tear panel and the inner lock panel.

4. The self-locking corrugated carton as claimed in claim 3, wherein the outer end of the inner locking plate is connected with a plurality of clamping plates, and the end of the bottom plate close to the front plate is provided with a square hole for inserting the clamping plates.

5. The self-locking corrugated paper carton as claimed in claim 3, wherein the inner locking plate is connected with the clamping plates at two sides, and the bending parts of the outer side plate and the side ear plates are provided with square holes for the clamping plates to be inserted.

6. The self-locking corrugated paper carton as claimed in claim 4, wherein the T-shaped plug is provided with embedded grooves on two sides, and the inserting hole is connected with a locking piece which can be embedded into the embedded grooves.

7. The self-locking corrugated paper carton as claimed in claim 1, wherein the insert plate is formed by bending an inner folded plate and an outer folded plate, the tear strip is located on the outer folded plate, the outer end of the inner folded plate is connected with a plurality of clamping plates, and one end of the cover plate close to the outer folded plate is provided with a square hole for the clamping plates to be inserted.

8. The self-locking corrugated cardboard box of claim 1, 2, 3, 4, 5 or 7 wherein only one side of the T-shaped plug has bent side wings.

9. The self-locking corrugated carton as recited in claim 8, wherein the outer side panel is connected at each end to an inwardly foldable side panel tab, and the inner side panel is connected at one side to an insert tab located in the insert panel.

10. The self-locking corrugated carton of claim 9, wherein the tear strip is a bond type plastic tear strip or a die cut elongated zipper tear.