阅读说明：本技术 一种纸盒 (Paper box ) 是由 占小富 黄泽晓 张啸 卢西 于 2019-12-19 设计创作，主要内容包括：本发明公开了一种纸盒,涉及包装盒技术领域。该纸盒包括外盒和内盒,外盒内壁设置有第一抵接部,内盒通过外盒的开口以推拉方式滑动安装于外盒内,内盒的外壁设置有弹性凸出部。弹性凸出部能沿拉出方向与第一抵接部抵接,以使内盒和外盒处于锁定状态,实现纸盒的自锁。由于弹性凸出部为弹性变形结构,因此,在将内盒放进外盒里时,弹性凸出部自动与第一抵接部抵接,将内盒卡紧于外盒中。按压弹性凸出部时,弹性凸出部能与第一抵接部错开,以使内盒和外盒处于解锁状态,实现纸盒的解锁。此外,由于纸盒由全纸质制造,相比于使用五金件、塑料等材料制造的盒体,该纸盒便于回收,更为环保,同时减少了制造成本和人工组装成本,提高生产效率。(The invention discloses a paper box and relates to the technical field of packaging boxes. The paper box comprises an outer box and an inner box, wherein a first abutting part is arranged on the inner wall of the outer box, the inner box is slidably installed in the outer box in a push-pull mode through an opening of the outer box, and an elastic protruding part is arranged on the outer wall of the inner box. The elastic protruding part can abut against the first abutting part along the pulling-out direction, so that the inner box and the outer box are in a locking state, and the self-locking of the paper box is realized. Because the elastic protruding part is of an elastic deformation structure, when the inner box is placed into the outer box, the elastic protruding part is automatically abutted against the first abutting part, and the inner box is clamped in the outer box. When pressing the elasticity bulge, the elasticity bulge can stagger with first butt portion to box and outer box are in the unblock state in making, realize the unblock of carton. In addition, because the carton is made by full paper, compare in the box body that uses materials such as hardware, plastics to make, this carton is convenient for retrieve, and is more environmental protection, has reduced manufacturing cost and manual assembly cost simultaneously, improves production efficiency.)

1. A carton, comprising:

the box comprises a box (1), wherein a first abutting part (13) is arranged on the inner wall of the box (1);

the inner box (2) is slidably installed in the outer box (1) in a push-pull mode through an opening of the outer box (1), and an elastic protruding part (24) is arranged on the outer wall of the inner box (2);

the elastic projection (24) can abut against the first abutting part (13) along the pulling-out direction so as to enable the inner box (2) and the outer box (1) to be in a locking state; when the elastic protrusion part (24) is pressed, the elastic protrusion part (24) can be staggered with the first abutting part (13) so as to enable the inner box (2) and the outer box (1) to be in an unlocking state.

2. A carton as claimed in claim 1, characterized in that the inner wall of the outer box (1) is provided with a second abutment (14), the second abutment (14) being located on one side of the first abutment (13) in the pull-out direction, the resilient projection (24) being capable of abutting against the second abutment (14) in the pull-out direction to limit the complete extraction of the inner box (2) from the outer box (1).

3. A carton as claimed in claim 2, characterised in that the resilient tab (24) comprises:

a first elastic projection (241), the first elastic projection (241) being capable of abutting against the first abutment (13);

two second elastic convex parts (242) which are oppositely arranged, and each second elastic convex part (242) is correspondingly abutted with one second abutting part (14).

4. A carton as claimed in claim 3, characterized in that the sleeve (1) comprises a sleeve body (11), the sleeve body (11) being formed by folding corrugated paper and open at the front;

the first abutting part (13) and the second abutting part (14) are both made of corrugated boards, the front ends of the first abutting part (13) and the second abutting part (14) are connected with the inner wall of the outer box body (11), and the rear ends of the first abutting part and the second abutting part are inclined towards the inner side of the outer box body (11).

5. A carton as claimed in claim 4, characterized in that the sleeve (1) further comprises:

a second top folding plate (1221), the second top folding plate (1221) being connected to an end of the outer box top plate (112) of the outer box body (11) close to the front opening, the second top folding plate (1221) being foldable inward of the outer box body (11) to form the first abutting portion (13);

and one end, close to the front opening, of each of the left outer box side plate (111) and the right outer box side plate (113) of the outer box (11) is connected to the second folding side plate (1222), and the second folding side plate (1222) can be bent towards the inner side of the outer box (11) to form the second abutting portion (14).

6. A carton as claimed in claim 1, characterised in that the outer sleeve (1) is provided with a through hole (1121), and in that at least part of the resilient projection (24) is located within the through hole (1121) when the inner sleeve (2) and the outer sleeve (1) are in the locked condition.

7. A carton as claimed in any one of claims 4 and 5, characterized in that the inner box (2) comprises:

the inner box body (21) is formed by folding corrugated paper and is provided with an opening at the top;

the first elastic bulge part (241) and the second elastic bulge part (242) are made of corrugated boards, the rear ends of the first elastic bulge part (241) and the second elastic bulge part (242) are connected with the outer wall of the inner box body (21), and the front ends of the first elastic bulge part and the second elastic bulge part incline towards the direction of the outer box body (11).

8. A carton as claimed in claim 7, characterized in that the inner box (2) further comprises:

the extension main board (2221) is formed by extending upwards the rear end face of the inner box bottom board (212) of the inner box body (21), and the upper end of the extension main board (2221) can be bent towards the top of the inner box body (21) to form the first elastic bulge (241);

the extension side plate (2222) is arranged on each of the left side and the right side of the extension main plate (2221), and the extension side plate (2222) can be bent towards the front side of the inner box body (21) to form the second elastic protruding part (242).

9. A carton as claimed in claim 7, characterized in that the inner box (2) further comprises:

second connecting plate (232), interior box left side board (211) and interior box right side board (213) of interior box body (21) all to the top surface of interior box body (21) extends there is second connecting plate (232), second connecting plate (232) are located the bottom of first elasticity bellying (241) upwards props up first elasticity bellying (241).

10. A carton as claimed in claim 7, characterized in that the inner box (2) further comprises:

first extension board (221), first extension board (221) with the front side of interior box bottom plate (212) of interior box body (21) is connected, first extension board (221) upwards in proper order, forward, downward and backward buckle the back with interior box bottom plate (212) bonding is fixed to form interior box preceding curb plate (214) that has the cavity, interior box left side board (211) and interior box right side board (213) of interior box body (21) are connected with first connecting plate (231) respectively, first connecting plate (231) can insert in the cavity.

Technical Field

The invention relates to the technical field of packaging boxes, in particular to a paper box.

Background

The box body that realizes the theftproof function of unblanking at present all need adopt some hardware, plastics or other materials to make mostly, though the material is made and can be showing improvement box body intensity more than using, but its box body structure is all comparatively complicated generally, has improved manufacturing cost and manual assembly cost simultaneously, and production efficiency is not high, and is not fit for to the occasion that only needs to use simple and easy box body structure. In addition, when the waste is recycled, the box body structure made of various materials can be recycled after different materials are separated, so that the cost of separating and recycling the waste is undoubtedly increased, and meanwhile, the recycling of the waste is not facilitated.

The box body that uses paper material to make at present often is comparatively simple, does not have the theftproof function of unblanking, and the structure is too simple simultaneously, only can realize simple operation that opens and shuts, can't realize the box body auto-lock, has the potential safety hazard, may lead to the appearance of incident.

Therefore, it is a problem to be solved by those skilled in the art how to modify the existing cartons so as to overcome the above problems.

Disclosure of Invention

The invention aims to provide a paper box which can realize self-locking and unlocking of the paper box, is made of all paper, is convenient to recycle and more environment-friendly, reduces the manufacturing cost and the manual assembly cost, and improves the production efficiency.

In order to achieve the purpose, the invention adopts the following technical scheme:

a carton, comprising:

the inner wall of the outer box is provided with a first abutting part;

the inner box is slidably arranged in the outer box in a push-pull mode through the opening of the outer box, and the outer wall of the inner box is provided with an elastic protruding part;

the elastic protruding part can abut against the first abutting part along the pulling-out direction so as to enable the inner box and the outer box to be in a locking state; when the elastic protruding part is pressed, the elastic protruding part can be staggered with the first abutting part, so that the inner box and the outer box are in an unlocking state.

Optionally, the inner wall of the outer box is provided with a second abutting portion, the second abutting portion is located on one side of the first abutting portion along the pulling direction, and the elastic protruding portion can abut against the second abutting portion along the pulling direction to limit the inner box from being completely pulled out of the outer box.

Optionally, the elastic tab comprises:

a first elastic projecting portion which can abut against the first abutting portion;

two second elastic convex parts which are oppositely arranged, and each second elastic convex part is correspondingly abutted with one second abutting part.

Optionally, the outer box comprises an outer box body which is formed by folding corrugated paper and is open at the front side;

the first abutting part and the second abutting part are both made of corrugated boards, the front ends of the first abutting part and the second abutting part are connected with the inner wall of the outer box body, and the rear ends of the first abutting part and the second abutting part are inclined towards the inner side of the outer box body.

Optionally, the outer box further comprises:

a second top folding plate connected to an end of the outer box top plate of the outer box body near the front opening, the second top folding plate being foldable toward an inner side of the outer box body to form the first abutting portion;

the second side board that folds, outer box left side board and outer box right side board of outer box are close to the open-ended one end in front all connects the second side board that folds, the second side board that folds can to outer box inboard is buckled, in order to form second butt portion.

Optionally, a through hole is provided on the outer box, and at least a part of the elastic protrusion is located in the through hole when the inner box and the outer box are in the locked state.

Optionally, the inner box comprises:

the inner box body is formed by folding corrugated paper and is provided with an opening at the top;

the first elastic bulge and the second elastic bulge are made of corrugated boards, the rear ends of the first elastic bulge and the second elastic bulge are connected with the outer wall of the inner box body, and the front ends of the first elastic bulge and the second elastic bulge incline towards the direction of the outer box body.

Optionally, the inner box further comprises:

the extension main board is formed by upwards extending the rear end face of the inner box bottom board of the inner box body, and the upper end of the extension main board can be bent towards the top of the inner box body to form the first elastic bulge;

the extension curb plate, the left and right sides that extends the mainboard all is provided with the extension curb plate, the extension curb plate can to the front side bending of interior box body, in order to form second elasticity bulge.

Optionally, the inner box further comprises:

the second connecting plate, interior box left side board and interior box right side board of interior box body all to the top surface of interior box body extends there is the second connecting plate, the second connecting plate is located the bottom of first elastic bulge props up upwards first elastic bulge.

Optionally, the inner box further comprises:

the first extension board, first extension board with the front side of the interior box bottom plate of interior box body is connected, first extension board upwards in proper order, forward, downward and backward buckle the back with interior box bottom plate bonds fixedly to form the interior box preceding curb plate that has the cavity, the interior box left side board and the interior box right side board of interior box body are connected with first connecting plate respectively, first connecting plate can insert in the cavity.

The invention has the beneficial effects that:

the invention provides a paper box which comprises an outer box and an inner box, wherein a first abutting part is arranged on the inner wall of the outer box, the inner box is slidably installed in the outer box in a push-pull mode through an opening of the outer box, and an elastic protruding part is arranged on the outer wall of the inner box. The elastic protruding part can abut against the first abutting part along the pulling-out direction, so that the inner box and the outer box are in a locking state, and the self-locking of the paper box is realized. Because the elastic protruding part is of an elastic deformation structure, when the inner box is placed into the outer box, the elastic protruding part is automatically abutted against the first abutting part, and the inner box is clamped in the outer box. When pressing the elasticity bulge, the elasticity bulge can stagger with first butt portion to box and outer box are in the unblock state in making, realize the unblock of carton. In addition, because the carton is made by full paper, compare in the box body that uses materials such as hardware, plastics to make, this carton is convenient for retrieve, and is more environmental protection, has reduced manufacturing cost and manual assembly cost simultaneously, improves production efficiency.

Drawings

FIG. 1 is a schematic structural view of an outer box according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of an inner case in an embodiment of the present invention;

FIG. 3 is a schematic view of the structure of the closed state of the carton in the embodiment of the present invention;

FIG. 4 is a schematic structural view of the opened state of the paper cassette in the embodiment of the present invention;

FIG. 5 is a paper-molding diagram of an outer box according to an embodiment of the present invention;

fig. 6 is a paper molding diagram of the inner case in an embodiment of the present invention.

In the figure:

1. an outer box; 2. an inner case; 3. a sticking member; 4. silk-screen glue;

11. an outer case; 12. folding the board; 13. a first abutting portion; 14. a second abutting portion; 21. an inner box body; 22. an extension plate; 23. a connecting plate; 24. an elastic projection; 25. a push-pull member;

111. a left side plate of the outer box; 112. a top plate of the outer box; 113. a right side plate of the outer box; 114. an outer box bottom plate; 121. a first folding plate; 122. a second folding plate; 211. the left side plate of the inner box; 212. an inner box bottom plate; 213. the right side plate of the inner box; 214. a front side plate of the inner box; 221. a first extension plate; 222. a second extension plate; 231. a first connecting plate; 232. a second connecting plate; 233. a third connecting plate; 241. a first elastic projection; 242. a second elastic projection;

1121. a through hole; 1221. a second folded top panel; 1222. a second folded side panel; 2121. a first inner box bottom panel; 2122. a second inner box bottom plate; 2221. extending the main board; 2222. an extension side plate; 2223. an inner plate is extended.

Detailed Description

In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

An embodiment of the present invention provides a paper box, as shown in fig. 1-4, the paper box includes an outer box 1 and an inner box 2, the inner box 2 is slidably installed in the outer box 1 in a push-pull manner through an opening of the outer box 1, so as to realize opening and closing of the paper box. Because the carton is made by full paper, compare in the box body that uses materials such as hardware, plastics to make, this carton is convenient for retrieve, and is more environmental protection, has reduced manufacturing cost and manual assembly cost simultaneously, improves production efficiency. However, the box body made of the paper material is often simple at present, does not have the anti-theft unlocking function, can only realize simple opening and closing operation, is too simple in structure, cannot realize self-locking of the box body, has potential safety hazards, and can possibly lead to safety accidents.

To solve the above problem, as shown in fig. 1-6, the inner wall of the outer box 1 provided in this embodiment is provided with a first abutting portion 13, the outer wall of the inner box 2 is provided with an elastic protruding portion 24, and the elastic protruding portion 24 can abut against the first abutting portion 13 along the pulling direction, so that the inner box 2 and the outer box 1 are in the locked state, and the paper box is self-locked. Since the elastic protrusion 24 is elastically deformed, when the inner case 2 is placed in the outer case 1, the elastic protrusion 24 automatically abuts against the first abutting portion 13, thereby clamping the inner case 2 in the outer case 1. When the elastic protruding part 24 is pressed, the elastic protruding part 24 can be staggered with the first abutting part 13, so that the inner box 2 and the outer box 1 are in an unlocking state, and the paper box is unlocked.

In order to press the elastic protrusion 24, a through hole 1121 is formed in the outer case 1, and at least a portion of the elastic protrusion 24 is located in the through hole 1121 when the inner case 2 and the outer case 1 are in the locked state. The elastic projection 24 can be pressed through the through hole 1121 so that the elastic projection 24 is displaced from the first abutting portion 13, thereby enabling the inner box 2 to be drawn out. Preferably, the through hole 1121 is configured to have a size allowing fingers to pass through, so that when the carton is used, the carton can be held by one hand and the fingers can be directly extended to press the elastic protrusions 24 from the through hole 1121, so that unlocking can be realized, the structure is simple, and the use habit is better met.

In this embodiment, as shown in fig. 1-4, in order to avoid the inner case 2 from being pulled out from the outer case 1 by too much force after unlocking, the inner wall of the outer case 1 is provided with a second abutting portion 14, the second abutting portion 14 is located on one side of the first abutting portion 13 along the pulling direction, and the elastic protruding portion 24 can abut against the second abutting portion 14 along the pulling direction to limit the inner case 2 from being completely pulled out from the outer case 1. After the elastic protruding portion 24 is separated from the first abutting portion 13 after unlocking, the inner case 2 can move relative to the outer case 1 along one side of the pulling direction, and when the inner case 2 moves to the limit position, the elastic protruding portion 24 abuts against the second abutting portion 14 arranged on the inner wall of the outer case 1, so that the inner case 2 is prevented from being completely pulled out from the outer case 1, and the safety of the inner case 2 product is improved.

Specifically, the elastic projecting portion 24 includes a first elastic projecting portion 241 and two oppositely disposed second elastic projecting portions 242, the first elastic projecting portion 241 can abut against the first abutting portion 13, and each of the second elastic projecting portions 242 correspondingly abuts against one of the second abutting portions 14. Alternatively, the first elastic projection 241 is provided on the top surface of the outer wall of the inner case 2, and the first abutting portion 13 is provided on the top surface of the inner wall of the outer case 1 in correspondence thereto. On the one hand, the first elastic protruding part 241 is convenient to press from the top surface of the paper box, and on the other hand, the first elastic protruding part 241 which needs to be pressed repeatedly is prevented from being arranged as the bearing surface of the inner box 11, so that the stability of the paper box is improved. In addition, two second elastic protruding parts 242 are disposed on two adjacent sides of the first elastic protruding part 241, and the two second elastic protruding parts 242 and the second abutting part 14 are symmetrically disposed, so that when the inner box 2 is pushed or pulled, the inner box 2 can stably and symmetrically contact the inner wall of the outer box 1, and the structure is simple and beautiful.

Preferably, as shown in fig. 4, the dimension of the first elastic projection 241 in the push-pull direction of the inner box 2 is not larger than the sum of the dimensions of the second abutment portion 14 and the second elastic projection 242 in the push-pull direction of the inner box 2. Because the first elastic protruding portion 241 is disposed on the top surface of the outer wall of the inner case 2, in order to prevent the first elastic protruding portion 241 from being pulled out synchronously with the inner case 2 when the inner case 2 is pulled out, which affects the aesthetic effect of the paper box, the size of the first elastic protruding portion 241 is limited, so that when the inner case 2 is pulled to the abutting position of the second elastic protruding portion 242 and the second abutting portion 14, i.e., when the inner case 2 is at the limit position, the first elastic protruding portion 241 is still located inside the outer case 1.

In this embodiment, the inner case 2 is provided with a push-pull member 25 to push and pull the inner case 2 by the push-pull member 25. The push-pull member 25 may be configured as a semi-circular piece or a circular ring structure so as to easily pull the push-pull member 25 and drive the inner case 2 to move through the push-pull member 25.

Therefore, as shown in fig. 1 to 4, the initial state of the paper box is that the inner box 2 is placed in the outer box 1, and the work flow of the paper box provided by the embodiment is as follows: in the initial state, the first elastic protrusion 241 on the outer wall of the inner case 2 abuts against the first abutting part 13 on the inner wall of the outer case 1, and the inner case 2 cannot be pulled out by pulling the push-pull member 25, that is, the inner case 2 is locked in the outer case 1; pressing the first elastic protrusion 241 from the through hole 1121 to make the first elastic protrusion 241 offset from the first abutting portion 13, and pulling the push-pull member 25 to pull the inner case 2 out of the outer case 1; when the inner box 2 is pulled out to a certain extent, two second elastic protruding parts 242 oppositely arranged on the outer wall of the inner box 2 abut against the corresponding second abutting parts 14 on the inner wall of the outer box 1 to limit the further movement of the inner box 2, and at this time, the product in the inner box 2 is completely exposed to the user; the inner box 2 can be pushed into the outer box 1 by pushing the push-pull component 25, and after the inner box 2 is pushed back into the outer box 1, the first elastic protruding part 241 automatically rebounds to enable the first elastic protruding part 241 to abut against the first abutting part 13, so that the automatic locking of the paper box is realized.

In this embodiment, as shown in fig. 1 and 2, the outer box 1 includes an outer box 11, the outer box 11 is formed by folding corrugated paper and has a front opening, the first abutting portion 13 and the second abutting portion 14 are both made of corrugated paper, front ends of the first abutting portion 13 and the second abutting portion 14 are connected to an inner wall of the outer box 11, and rear ends thereof are inclined toward an inner side of the outer box 11. That is, the outer box 11 is folded to form an outer frame of the outer box 1, and both the first abutting portion 13 and the second abutting portion 14 are connected to the outer box 11 so as to form a structure abutting against the outside of the inner box 2 inside the outer box 1.

Specifically, as shown in fig. 5, the outer box 11 includes a left outer box side 111, a top outer box plate 112, a right outer box side 113 and a bottom outer box plate 114 connected at their sides, and the outer box 11 with two open ends can be formed by folding and folding the intersecting lines between the upper outer box plates and fixing the upper outer box plates. Preferably, an auxiliary plate 115 may be provided at one side of any one of the outer box plates at the edge position, and the auxiliary plate 115 may be folded and fixed to the outer box plate at the other edge to realize folding and fixing of the outer box 11, and also to make the structure of the outer box 11 more stable, and the outer box plate may be provided with multiple layers to increase the structural strength of the outer box 1.

Further, outer box 1 still includes folding plate 12, folding plate 12 connects outer box left side board 111 respectively, outer box roof 112, outer box right side board 113 and the both sides of outer box bottom plate 114 along the pull-out direction, folding plate 12 includes first folding plate 121 and second folding plate 122, first folding plate 121 sets up to keeping away from outer box 1 open end one side, first folding plate 121 openly coats and has pasting part 3 and can fold the first folding plate 121 and the intersection line between the above outer box board, form outer box rear side board and form front end open-ended outer box 1 with outer box 11. The pasting member 3 may be a double-sided tape, an adhesive, or the like, that is, it is sufficient to closely paste a designated position in the carton, and is not particularly limited herein. The second folding plate 122 is disposed near one side of the open end of the outer box 1. The second folding plate 122 includes a second folding top plate 1221 and a second folding side plate 1222, the second folding top plate 1221 is connected to one end of the outer box top plate 112 of the outer box 11 close to the front opening, and the second folding top plate 1221 can be bent and fixed toward the inner side of the outer box 11 to form the first abutting portion 13. One end of the outer box left side plate 111 and one end of the outer box right side plate 113 close to the front opening of the outer box 11 are both connected to the second folded side plate 1222, and the second folded side plate 1222 can be bent and fixed toward the inner side of the outer box 11 to form the second abutting portion 14.

Optionally, the second top folding plate 1221 and the second side folding plate 1222 may also be adhered to the inner side of the outer box 11 by silk-screen printing glue 4 to fix the positions of the first abutting portion 13 and the second abutting portion 14, the silk-screen printing glue 4 is precisely coated on the second top folding plate 1221 and the second side folding plate 1222 through silk-screen printing technology, after the glue dries, a layer of adhesive film like gummed paper is generated, and then the adhesive film can be bonded to the inner side of the outer box 11 in real time. Make to paste more closely and the environmental protection through silk screen printing glue 4 on second folding roof 1221 and the second folding curb plate 1222, can increase outer box 1's structural strength through increasing the non-setting adhesive film of one deck.

Therefore, as shown in fig. 1 and 5, the folding mode of the paper mold of the outer box 1 is as follows: first, the auxiliary plate 115, the left outer box side plate 111, the top outer box plate 112, the right outer box side plate 113 and the bottom outer box plate 114, which are connected in sequence, are folded to form the outer box body 11 with two open ends, that is, the auxiliary plate 115 is overlapped on the bottom outer box plate 114; then, the intersecting line between the first folding plate 121 and each of the above outer box plates is folded, and the first folding plates 121 of each layer are fixed by the adhering part 3 covered on the first folding plate 121, so as to form an outer box rear side plate and form an outer box 1 with an open front end together with the outer box body 11; finally, the intersecting lines between the second folding plate 122 and the above outer box plates are folded, and the second folding plate 122 is fixed inside the outer box body 11 by silk-screen glue 4 to form a first abutting part 13 and a second abutting part 14, thereby realizing the folding of the paper mold of the outer box 1.

In this embodiment, as shown in fig. 1 and 2, the inner box 2 includes an inner box body 21, and the inner box body 21 is formed by folding corrugated paper and has an open top. The inner case 21 slides in a push-pull manner through the front opening of the outer case 11, and a product can be taken and placed from the top opening of the inner case 21. The first elastic protrusion 241 and the second elastic protrusion 242 are supported by the corrugated board, the rear ends of the first elastic protrusion 241 and the second elastic protrusion 242 are connected with the outer wall of the inner box 21, and the front ends incline to the direction of the outer box 11. That is, the inner case 21 is folded to form an outer frame of the inner case 2, and the first elastic protrusion 241 and the second elastic protrusion 242 are connected to the inner case 21 to form a structure abutting against the inner side of the outer case 1 at the outer side of the inner case 2.

Preferably, since the first elastic projecting portion 241, the second elastic projecting portion 242, the first abutting portion 13 and the second abutting portion 14 are made of corrugated paper, the first elastic projecting portion 241 and the second elastic projecting portion 242 may be arranged to be inclined toward the opening direction of the external box 1 while the first abutting portion 13 and the second abutting portion 14 are inclined toward the direction away from the opening direction of the external box 1. When the inner case 2 is placed in the outer case 11, the raised portion of the first elastic protrusion 241 abuts against the raised portion of the first abutting portion 13, which is more beneficial to locking the inner case 2 in the outer case 1 and preventing the inner case from falling out. When the inner case 2 is pulled out, the second abutting portion 14 abuts against the raised portion of the second elastic projection 242 to further improve the abutting effect. In addition, the first abutting portion 13 and the second abutting portion 14 are arranged in an inclined structure, so that the elastic protruding portion 24 can be used for guiding, and the inner box 2 can be pushed and pulled more conveniently.

In this embodiment, as shown in fig. 2 and 6, the inner box body 21 includes an inner box left side plate 211, an inner box bottom plate 212, and an inner box right side plate 213 connected at their sides, and the inner box body 21 with an upper end and two open ends can be formed by folding and folding the intersecting line between the upper inner box plates and fixing the upper inner box plates. Interior box 2 still includes extension board 22 and connecting plate 23, extension board 22 includes first extension board 221, first extension board 221 is connected with the front side of interior box bottom plate 212 of interior box body 21, first extension board 221 upwards in proper order, forward, it is fixed with interior box bottom plate 212 after buckling downwards and backward, in order to form the interior box preceding curb plate 214 that has the cavity, interior box left side board 211 and interior box right side board 213 of interior box body 21 are connected with first connecting plate 231 respectively, first connecting plate 231 can insert in the cavity, in order to support interior box preceding curb plate 214.

Alternatively, the push-pull member 25 may be provided on the inner box front side plate 214 to push and pull the inner box 2 by pulling the inner box front side plate 214 by the push-pull member 25. In this embodiment, the push-pull member 25 is disposed on the inner case bottom plate 212 near the opening of the outer case 1, and the push-pull member 25 is pulled to drive the inner case 21 to move, so that the push-pull force directly acts on the inner case 2, thereby preventing the inner case 2 from being damaged due to the excessive push-pull force. However, the side of the inner box bottom plate 212 close to the opening of the outer box 1 needs to be folded to form the inner box front side plate 214, so as not to make the inner box front side plate 214 collide with the push-pull member 25, two layers of inner box bottom plates 212 need to be disposed so as to connect the inner box front side plate 214 and the push-pull member 25 respectively, and the two layers of inner box bottom plates 212 are overlapped to further improve the structural strength of the inner box body 21.

Further, as shown in fig. 6, the two-layered inner-box bottom plate 212 is provided to include a first inner-box bottom plate 2121 and a second inner-box bottom plate 2122, wherein the first inner-box bottom plate 2121 is connected to the push-pull member 25, and the second inner-box bottom plate 2122 is connected to the first extension plate 221. A third connecting plate 233 is further provided between the inner box plates, and the third connecting plate 233 can connect the inner box left side plate 211, the inner box bottom plate 212, and the inner box right side plate 213 to form an inner box body 21 having an inner and outer two-layer structure. Meanwhile, the third connecting plate 233 is disposed inside the inner case 21 and the glue 4 is silk-printed on the third connecting plate 233 to fix the two-layer structure of the inner case 21. In this embodiment, the inner box body 21 includes a third connecting plate 233, an inner box left side plate 211, a first inner box bottom plate 2121, an inner box right side plate 213, a third connecting plate 233, and a second inner box bottom plate 2122, which are connected in sequence at their sides, and the intersecting line between the inner box plates is folded and folded, and the third connecting plate 233 is folded and fixed toward the inside of the inner box body 21 along the intersecting line between the third connecting plate 233 and the inner box left side plate 211 and the inner box right side plate 213, so that the first inner box bottom plate 2121 and the second inner box bottom plate 2122 are overlapped, and the inner box body 21 with a two-layer structure can be formed.

In this embodiment, as shown in fig. 2 and fig. 6, the extension plate 22 further includes a second extension plate 222, and the second extension plate 222 is connected to the inner box bottom plate 212 and disposed on a side away from the outlet direction of the outer box 1. The second extension plate 222 includes an extension main plate 2221 and an extension side plate 2222, the extension main plate 2221 is formed by extending the rear end surface of the first inner box bottom plate 2121 upwards, the extension main plate 2221 forms an inner box 2 structure with an open top with the inner box body 21 via the rear end surface of the first inner box bottom plate 2121, and the upper end of the extension main plate 2221 can be bent towards the top of the inner box body 21 to form a first elastic protruding portion 241. Extension side plates 2222 are provided on both left and right sides of the extension main plate 2221, and the extension side plates 2222 can be bent toward the front side of the inner case 21 to form second elastic protrusions 242.

In order to fix the extension main board 2221 to the top of the inner box 21, the inner box 2 further includes a second connecting board 232, the inner box left side board 211 and the inner box right side board 213 of the inner box 21 both extend toward the top surface of the inner box 21 to form the second connecting board 232, and the second connecting board 232 is located at the bottom of the first elastic protruding portion 241 and upwardly supports the first elastic protruding portion 241. The second connecting plate 232 is coated with the attaching member 3 to attach the top surface of the second connecting plate 232 to the bottom surface of the first elastic protrusion 241 to fix the first elastic protrusion 241. Preferably, in order to improve the pressing strength of the first elastic protruding portion 241, the second inner case bottom plate 2122 is connected to an extension inner plate 2223, the extension inner plate 2223 is formed by extending the second inner case bottom plate 2122 upwards, the upper end of the extension inner plate 2223 can be bent towards the top of the inner case 21 and is disposed at the inner side of the extension main plate 2221, and the second connecting plate 232 is disposed between the extension inner plate 2223 and the extension main plate 2221 to enhance the structural strength of the first elastic protruding portion 241. In addition, in order to improve the tightness of the connection between the extension inner plate 2223 and the extension main plate 2221, the pasting component 3 is disposed at the rear end face position of the inner box, that is, the pasting component 3 may be coated on the back face of the extension main plate 2221 and/or the front face of the extension inner plate 2223, so that the extension inner plate 2223 and the extension main plate 2221 are tightly connected at the rear end face position of the inner box, so as to further improve the tightness of the paper box.

Therefore, as shown in fig. 2 and 6, the inner case 2 is folded in such a way that:

firstly, a third connecting plate 233, an inner box left side plate 211, a first inner box bottom plate 2121, an inner box right side plate 213, a third connecting plate 233 and a second inner box bottom plate 2122 which are connected in sequence are folded, the third connecting plate 233 is folded towards the inside of the inner box body 21 along the intersecting line of the third connecting plate 233, the inner box left side plate 211 and the inner box right side plate 213, and the inner box body 21 is fixed by silk-screen printing glue 4 on the third connecting plate 233, so that the first inner box bottom plate 2121 and the second inner box bottom plate 2122 are superposed to form an inner box body 21 with two ends and an upper end being opened;

second, the first extension plate 221 is bent upward, forward, downward and backward in sequence and then fixed to the first inner box bottom plate 2121 to form an inner box front side plate 214 having a cavity, and the first connection plate 231 is inserted into the cavity to support the inner box front side plate 214 and form the inner box body 21 with an open upper end and a rear end with the inner box body 21;

thirdly, extending the extension main board 2221 upwards from the rear end face of the first inner box bottom board 2121 and bending the upper end of the extension main board 2221 towards the top of the inner box body 21, extending the extension inner board 2223 upwards from the second inner box bottom board 2122 and arranging the extension inner board 2223 at the inner side of the extension main board 2221, and coating the adhesive part 3 on the back face of the extension main board 2221 and/or the front face of the extension inner board 2223 to form the inner box body 21 with an open top end and the inner box body 21;

fourthly, the second connection board 232 is disposed between the extension inner board 2223 and the extension main board 2221, the extension main board 2221 is fixed to the top of the inner box 21 by coating the adhesive member 3 on the surface of the second connection board 232, so as to form a first elastic protrusion 241, and the extension side board 2222 is bent and fixed to the front side of the inner box 21, so as to form a second elastic protrusion 242.

And (3) putting the folded inner box 2 into the folded outer box 1 to form a complete paper box.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.