CN221114770U

CN221114770U - Paper-made lock catch and packing box

Info

Publication number: CN221114770U
Application number: CN202322728143.1U
Authority: CN
Inventors: 陈俊发
Original assignee: Wuxi Xinxiangheng Packaging Technology Co ltd
Current assignee: Wuxi Xinxiangheng Packaging Technology Co ltd
Priority date: 2023-10-11
Filing date: 2023-10-11
Publication date: 2024-06-11
Anticipated expiration: 2033-10-11

Abstract

The present disclosure relates to a paper-made lock catch and a packing box, comprising an outer part and an inner part, wherein the outer part and the inner part are connected through a columnar connecting part, and the outer part and the inner part are respectively provided with an outer stop part and an inner stop part; when the outer box and the inner box are in a locking state, the connecting part sequentially passes through the connecting holes of the outer box and the inner box, the outer stop part is abutted against the outer surface of the outer box, and the inner stop part is abutted against the inner surface of the inner box; the inner stop part comprises a turnover part, when the inner box and the outer box are to be unlocked, the paper lock catch is pulled outwards, the turnover part is stressed to be turned over, and the paper lock catch can be pulled out from the connecting holes of the inner box and the outer box in sequence by continuing to apply force. The lock catch structure is firmer by the connection of the outer part, the inner part and the connecting part, and the I-shaped structure is formed after connection molding, so that the inner box and the outer box are firmly locked.

Description

Paper-made lock catch and packing box

Technical Field

The disclosure relates to the technical field of packaging, in particular to a paper lock catch and a packaging box.

Background

Cartons are widely used for packaging and transporting various articles, and when the contents are valuable or fragile articles, double-layer packaging is generally adopted to protect the articles for enhancing the cushioning performance of the packages and the safety during transportation.

For example, CN204957322U discloses a double-layer packaging carton, which comprises an inner box and a box, wherein the inner box is positioned in the U-shaped pipe surrounding structure, the U-shaped pipe is adhered to the outer wall of the inner box by using adhesive tape and is provided with a lifting handle, and the inner box and the outer box are separated by an angle protection cushion block at an octagonal position. When the inner box and the outer box are required to be separated, the corner protection cushion blocks at four corners of the top are taken out, and then the lifting handle is lifted upwards to take out the inner box from the outer box.

The scheme realizes the separation of the inner box and the outer box of the double-layer package, but an additional U-shaped pipe is required to be arranged, so that the complexity of the process is increased. In order to realize separability, the inner box and the outer box are only in contact connection at eight corner protection cushion blocks, and the connection is not firm and reliable.

The existing scheme is characterized in that the inner box and the outer box are locked by plastic buckles, the plastic buckles not only can realize the separation of the inner box and the outer box, but also can enable the connection of the inner box and the outer box to be firmer. However, the plastic buckle needs to be produced by mold opening and injection molding, and the cost performance is not high in small-batch production.

There are also few double-layer packages using paper latches, which have simple production process and low cost, but paper materials cannot meet the requirements of flexibility and resilience of plastic latches, and are easy to fall off or even damage in use, and cannot achieve the expected locking and unlocking effects, so that the application of the paper latches is limited.

Disclosure of utility model

Based on this, it is an object of the present disclosure to provide a paper latch that is structurally sound and tightly locked.

The paper lock catch is used for locking the outer box and the inner box and comprises an outer part and an inner part, wherein the outer part and the inner part are connected through a columnar connecting part, and an outer stop part and an inner stop part are respectively arranged on the outer part and the inner part;

When the outer box and the inner box are in a locking state, the connecting part sequentially passes through the connecting holes of the outer box and the inner box, the outer stop part is abutted against the outer surface of the outer box, and the inner stop part is abutted against the inner surface of the inner box;

The inner stop part comprises a turnover part, and when the outer box and the inner box are in a locking state, the turnover part is abutted against the inner surface of the inner box;

When the inner box and the outer box are to be unlocked, the paper lock catch is pulled outwards, the turnover part is stressed to turn over towards the center direction of the connecting hole of the inner box, and the paper lock catch can be pulled out from the connecting hole of the inner box and the outer box in sequence by continuing to apply force.

Preferably, the connection member comprises a hollow prism having a rectangular bottom.

Preferably, the outer member comprises a base plate, the periphery of which comprises the outer stopper extending along a plane thereof, and the middle part of which is provided with a connecting part for connecting the connecting members.

Preferably, a rectangular hole is formed in the middle of the bottom plate, connecting wings are arranged at least at two opposite edges of the rectangular hole, the connecting parts are sleeved outside the connecting wings, and the connecting wings are connected to the inner walls of the connecting parts.

Preferably, the foldable part comprises a first folding part and a second folding part which are symmetrically arranged, and the first folding part and the second folding part respectively comprise a first connecting plate, a first folding plate, a second folding plate and a second connecting plate which are connected in a folding way;

The first connecting plate is connected with the inner wall of the connecting part, and the second folding plate is overlapped on the upper part of the first folding plate and is connected at the overlapped part; the second connecting plate is vertically inserted into the connecting part and overlapped and connected with the second connecting plate of the other turnover part.

Preferably, the first connecting plate is connected with a third connecting plate in a folding way, and the third connecting plate is connected with the bottom plate.

Preferably, a clamping groove is formed in the middle of the upper edge of the connecting wing, a protrusion is arranged on the side edge of the second connecting plate, and the protrusion is clamped in the clamping groove.

Preferably, the first folding part and the second folding part are connected in a folding way; the two sides of the second connecting plate are respectively connected with the fourth connecting plate in a folding way.

Preferably, the outer and inner members are constructed of multiple layers of kraft paper.

It is another object of the present disclosure to provide a packing box in which an inner box and an outer box can be firmly locked, the packing box using the paper locker of any one of the foregoing.

The technical scheme claimed by the disclosure has the following beneficial effects:

1) The paper lock catch is composed of an outer part, an inner part and a connecting part, the structure is firm and firm, an I-shaped lock catch is formed after connection molding, the outer stop part is clamped with the outer wall of the outer box, the inner stop part is clamped with the inner wall of the inner box, the inner box and the outer box are firmly locked, and the inner articles are better protected.

2) The inner part comprises symmetrical turnover parts, when the inner box and the outer box are to be unlocked, the lock catch is pulled outwards, the turnover parts are stressed to be turned over, and when the turnover parts are separated from the connecting holes of the inner box, the unlocking of the outer box and the inner box is realized, so that the operation is easy and simple.

3) The turnover part is directly formed by ingenious folding, and meanwhile, the connection between the turnover part and the connecting part and the connection between the turnover part and the outer part are realized, so that the whole lock catch is combined more firmly, the shaping and positioning performance is enhanced, and the lock catch is more durable.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only embodiments of the present disclosure, and other drawings may be obtained according to the provided drawings without inventive effort for a person skilled in the art.

FIG. 1 is an exploded schematic view of a paper latch.

Fig. 2 is a schematic view of the connection of the outer member and the connecting member.

Fig. 3 is a schematic view of an inner part with a fourth connection plate.

FIG. 4 is a schematic view of a paper clasp mounted to an outer box.

FIG. 5 is a front perspective view of the assembled paper clip.

Fig. 6 is an enlarged view of a portion of the projection being captured in the slot.

FIG. 7 is a schematic view showing the paper clasp with the tuckable portion abutting the inner wall of the inner case.

FIG. 8 is a rear perspective view of the assembled paper clip.

FIG. 9 is a front view of the paper latch.

FIG. 10 is a rear view of the paper clasp.

FIG. 11 is a side view of the paper clasp.

FIG. 12 is a top view of the paper clasp.

Reference numerals:

1-an outer part; 2-an inner part; 3-connecting parts; 4-an outer stop; 5-rectangular holes; 6-connecting wings; 7-a first connection plate; 8-a first flap; 9-a second turning plate; 10-a second connecting plate; 11-a third connection plate; 12-a first fold; 13-a second fold; 14-clamping grooves; 15-bulge; 16-fourth connecting plate.

Detailed Description

For the purpose of making the objects, technical solutions and advantageous effects of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure, and it is apparent that the described embodiments are some embodiments of the present disclosure, but not all embodiments. Based on the embodiments in this disclosure, all other embodiments that a person of ordinary skill in the art would obtain without making any inventive effort are within the scope of protection of this disclosure.

Example 1

As shown in fig. 1 to 12, the paper lock catch in the present embodiment is used for locking an outer case and an inner case, and includes an outer member 1 and an inner member 2, the outer member 1 and the inner member 2 are connected by a columnar connection member 3, and the outer member 1 and the inner member 2 are provided with an outer stopper 4 and an inner stopper, respectively.

The connecting part 3 sequentially penetrates through the connecting holes of the outer box and the inner box, when the outer box and the inner box are in a locking state, the outer stop part 4 is abutted against the outer surface of the outer box, the inner stop part is abutted against the inner surface of the inner box, and the inner box and the outer box are prevented from moving relatively.

The inner stop part comprises a turnover part, and when the outer box and the inner box are in a locking state, the turnover part is abutted against the inner surface of the inner box. When the inner box and the outer box are to be unlocked, the paper lock catch is pulled outwards, the turnover part is stressed to turn over towards the center direction of the connecting hole of the inner box, and the paper lock catch can be pulled out from the connecting hole of the inner box and the outer box in sequence by continuing to apply force.

In a preferred embodiment, the connecting element 3 comprises a hollow prism with a rectangular bottom.

In a preferred solution, the outer part 1 comprises a bottom plate, the periphery of which comprises the outer stop 4 extending along its plane, the outer stop 4 making the outer contour of the bottom plate rectangular, the middle of the bottom plate being provided with a connection for connecting the connection parts 3.

In a more preferred scheme, the middle part of the bottom plate is provided with a rectangular hole 5, the rectangular hole 5 is provided with connecting wings 6 at least at two opposite edges, the connecting part 3 is sleeved outside the connecting wings 6, and the connecting wings 6 are connected to the inner wall of the connecting part 3 in an adhesive mode.

In a preferred embodiment, the foldable part comprises a first folding part 12 and a second folding part 13 which are symmetrically arranged, and the first folding part 12 and the second folding part 13 are preferably integrally connected in a folding way. The first turnover part 12 and the second turnover part 13 respectively comprise a first connecting plate 7, a first turnover plate 8, a second turnover plate 9 and a second connecting plate 10 which are connected in a folding way.

The first connecting plate 7 is adhesively connected to the inner wall of the connecting member 3, and the second flap 9 is overlapped on the upper portion of the first flap 8. In order to strengthen the locking resistance and the shaping force of the turnover part, the first turnover plate and the second turnover plate are bonded and connected at the overlapped part; the second connection plate 10 is vertically inserted into the inside of the connection member 3 and overlapped and adhesively connected with the second connection plate 10 of the other turnover part.

In a more preferred version, the first web 7 is folded over to connect a third web 11, the third web 11 being adhesively connected to the base panel; the two side parts of the second connecting plate 10 are also respectively connected with a fourth connecting plate 16 in a folding way, and the width of the fourth connecting plate 16 is preferably half of the width of the inner wall of the connecting part connected with the fourth connecting plate in a contact way. In a more preferred scheme, in order to prevent the inner part 2 from being ejected, a clamping groove 14 is formed in the middle of the upper edge of the connecting wing 6, a protrusion 15 is formed on the side edge of the second connecting plate 10, and the protrusion 15 is clamped in the clamping groove 14.

The turnover part in the embodiment is connected with the inner wall of the connecting part and the bottom plate of the outer part through the first connecting plate and the third connecting plate, so that the combination of the turnover part and the connecting part, the turnover part and the outer part 1 and the combination of the connecting part and the outer part are firmer, and the whole lock catch is firmer and firmer.

In a preferred embodiment, the outer part 1 and the inner part 2 are made of a plurality of kraft paper layers in order to further enhance the mechanical strength of the shackle.

One of the ways in which the paper-made shackle of the present embodiment is assembled and used is as follows, and the user can assemble it in any feasible order:

1) Bonding the outer part 1 and the connecting part 3 to form an outer cover, and sleeving the outer cover into connecting holes of the outer box and the inner box in sequence, so that the outer wall of the outer box is clamped by the outer stop part;

2) The symmetrical turnover parts are folded and formed, the turnover parts are adhered to the connecting part 3 from the inner side of the connecting hole of the inner box, and the third connecting plate of the turnover parts is adhered to the bottom plate of the outer part 1, so that the first turnover part and the second turnover part are clamped on the inner wall of the inner box, and the inner box and the outer box are locked;

3) When the outer box and the inner box are to be unlocked, the lock catch is pulled outwards through pulling the second connecting plate, the first turnover part and the second turnover part are stressed to be turned relatively along the central direction of the connecting hole of the crease inward box, and the turnover part can be pulled out of the connecting hole of the inner box completely by continuing to apply force, so that the unlocking separation of the inner box and the outer box is realized.

The paper lock catch in the embodiment is formed by bonding the outer part, the inner part and the connecting part, the manufacturing process is simple, the mechanical firmness and the shaping positioning property of the paper lock catch are enhanced through ingenious folding of the inner part, and the inner box and the outer box can be firmly locked and are not easy to fall off or damage. In addition, the turnover part of the lock catch can be turned over relatively and separated from the connecting hole of the inner box only by pulling, the operation is simple and convenient, and the defect of poor elasticity of the traditional paper lock catch is overcome.

Example 2

This embodiment provides a double-layered packing case using the paper locker of embodiment 1 or embodiment 2.

The embodiments and application examples described above are merely exemplary descriptions of the present disclosure, and do not limit the scope of the disclosure, and various modifications and improvements made by those skilled in the art to the technical solutions of the present disclosure should fall within the protection scope defined by the claims of the present disclosure without departing from the spirit of the design of the present disclosure.

Claims

1. The paper lock catch is characterized by being used for locking an outer box and an inner box and comprising an outer part (1) and an inner part (2), wherein the outer part (1) and the inner part (2) are connected through a columnar connecting part (3), and the outer part (1) and the inner part (2) are respectively provided with an outer stop part (4) and an inner stop part;

When the outer box and the inner box are in a locking state, the connecting part (3) sequentially passes through the connecting holes of the outer box and the inner box, the outer stop part (4) is abutted against the outer surface of the outer box, and the inner stop part is abutted against the inner surface of the inner box;

2. A paper clasp according to claim 1, characterized in that the connecting part (3) comprises a hollow prism with a rectangular bottom.

3. A paper catch according to claim 2, characterized in that the outer part (1) comprises a bottom plate, the periphery of which comprises the outer stop (4) extending along its plane, the middle part of which bottom plate is provided with a connecting part for connecting the connecting part (3).

4. A paper clasp according to claim 3, characterized in that the middle part of the bottom plate is provided with a rectangular hole (5), the rectangular hole (5) is provided with connecting wings (6) at least at two opposite edges, the connecting member (3) is sleeved outside the connecting wings (6), and the connecting wings (6) are connected to the inner wall of the connecting member (3).

5. The paper lock catch according to claim 4, wherein the turnover part comprises a first turnover part (12) and a second turnover part (13) which are symmetrically arranged, and the first turnover part (12) and the second turnover part (13) respectively comprise a first connecting plate (7), a first turnover plate (8), a second turnover plate (9) and a second connecting plate (10) which are connected in a folding way;

The first connecting plate (7) is connected with the inner wall of the connecting part (3), and the second turning plate (9) is overlapped on the upper part of the first turning plate (8) and is connected at the overlapped part;

The second connecting plate (10) is vertically inserted into the connecting part (3) and is overlapped and connected with the second connecting plate (10) of the other turnover part.

6. The paper clasp according to claim 5, characterized in that the first connecting plate (7) is folded to connect a third connecting plate (11), the third connecting plate (11) being connected to the base plate.

7. The paper lock catch according to claim 5, wherein the middle part of the upper edge of the connecting wing (6) is provided with a clamping groove (14), the side edge of the second connecting plate (10) is provided with a protrusion (15), and the protrusion (15) is clamped in the clamping groove (14).

8. The paper clasp according to claim 5, wherein the first fold (12) and the second fold (13) are folded together; the two sides of the second connecting plate (10) are respectively connected with a fourth connecting plate (16) in a folding way.

9. A paper clasp according to any one of claims 1 to 8, characterized in that the outer part (1) and the inner part (2) consist of a multilayer kraft paper.

10. A packaging case, characterized in that the packaging case uses the paper locker of any one of claims 1 to 9.