CN217970633U

CN217970633U - Envelope with a detachable cover

Info

Publication number: CN217970633U
Application number: CN202222139189.5U
Authority: CN
Inventors: 邹建军; 夏海平
Original assignee: Dongguan Huanyou Packaging Products Co ltd; Guangdong Chuangxin New Material Technology Co ltd
Current assignee: Dongguan Huanyou Packaging Products Co ltd; Guangdong Chuangxin New Material Technology Co ltd
Priority date: 2022-08-15
Filing date: 2022-08-15
Publication date: 2022-12-06
Anticipated expiration: 2032-08-15

Abstract

The utility model is suitable for an envelope provides an envelope, place the chamber in the envelope, it encloses into and has one side opening by the base member to place the chamber, the base member of envelope includes inlayer, skin and buffer layer, inlayer, skin and buffer layer are the integral structure, the inlayer with outer coincide and form inclosed cushion chamber between the two, the cushion chamber intussuseption is filled with the buffer layer, the buffer layer encircles place the chamber. In the embodiment, the placing cavity for placing the contents is surrounded by the substrate of the envelope, namely, buffer layers are arranged on the front surface and the back surface of the envelope for buffering; the integrated structure of the inner layer and the outer layer can enhance the integrity and the strength of the envelope, and the front cover is communicated with the buffer layer in the back surface, so that the buffer performance is better; when the envelope is produced, the buffer layers do not need to be filled in the front cover and the back surface respectively, and only the buffer layers need to be filled in the buffer cavities firstly, and then the substrate is folded and stuck to form the envelope; the production is more convenient.

Description

Envelope with a detachable cover

Technical Field

The utility model belongs to the envelope field especially relates to an envelope.

Background

Envelopes are widely used for mailing letters, documents, small articles, and the like, and are generally a bag-shaped package for communicating document information, and the envelopes are generally formed into rectangular paper bags.

The existing envelope is usually made of kraft paper and can store letters therein after being glued by glue. In the existing envelope, buffer interlayers are respectively filled on two side surfaces of the envelope for buffering.

The existing envelope can buffer the articles in the envelope, but the protection capability of the articles in the envelope also has a lifting space.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the utility model is to provide an envelope aims at promoting the problem of current envelope to article protective capability.

The embodiment of the utility model provides a realize like this, place the chamber in the envelope, it encloses into and has one side opening by the base member to place the chamber, the base member of envelope includes inlayer, skin and buffer layer, inlayer, skin and buffer layer are the integral structure, the inlayer with outer coincide and form inclosed cushion chamber between the two, the cushion intracavity is filled has the buffer layer, the buffer layer encircles place the chamber.

Preferably, the buffer layer is honeycomb paper with hexagonal open pores, or the buffer layer is kraft paper with strip-shaped cracks distributed in an array staggered manner.

Preferably, the buffer layer is provided with crack units distributed in an array, and the opening of the crack units on the buffer layer is in the shape of two connected cracks with a set included angle.

Preferably, a plurality of buffer layers are superposed in the buffer cavity, and triangular entities corresponding to the crack units in two adjacent buffer layers are correspondingly connected.

Preferably, the two cracks of the crack unit have an included angle of 120 °, the first array direction of the crack unit is the same as one crack direction, the second array direction of the crack unit is the same as the other crack direction, the interval distance of the crack unit in the first array direction is the same as the interval distance of the crack unit in the first array direction, and the interval distance is greater than 1.5 times the length of the crack.

Preferably, one side of the envelope opening is an opening side, the opposite side of the opening side is a folding side, two adjacent sides of the opening side are bonding sides, the folding side is formed by folding the base body, and the bonding sides are two long sides which are bonded with the base body to form the envelope.

Preferably, the envelope further includes a flap portion corresponding to the opening side for closing the opening side.

Preferably, the sealing part is an extension part of one surface of the envelope opposite to the other surface, and the sealing part is provided with a sealing glue.

Preferably, the sealing part is arranged in a split manner relative to the envelope substrate, the sealing part is used for sealing the placing cavity by being respectively stuck to two sides of the opening side, and the sealing part is provided with two sealing rubbers.

Preferably, the outer layer is provided with a window, and the outer layer is covered with a transparent film.

The embodiment of the utility model provides an envelope, the placing cavity for placing the content is enclosed by the envelope substrate, and the envelope substrate has the buffer layer, namely the buffer layer is arranged on the front cover and the back surface of the envelope for buffering; the inner layer, the outer layer and the buffer layer are of an integrated structure, the integrity and the strength of the envelope can be enhanced through the integrated structure of the inner layer and the outer layer, and the buffer layer in the front cover and the back cover are communicated, so that the buffer performance is better; when the envelope is produced, the buffer layers do not need to be filled in the front cover and the back surface respectively, and only the buffer layers need to be filled in the buffer cavities firstly, and then the substrate is folded and stuck to form the envelope; the production is more convenient.

Drawings

Fig. 1 is a three-dimensional structure diagram of an envelope provided by the embodiment of the present invention;

fig. 2 is a schematic diagram of a buffering layer of an envelope provided by an embodiment of the present invention;

fig. 3 is a schematic diagram of a buffering layer of another envelope provided by an embodiment of the present invention;

fig. 4 is a schematic diagram of a buffering layer of another envelope provided by an embodiment of the present invention;

fig. 5 is an expansion schematic diagram of an envelope provided by an embodiment of the present invention.

In the drawings: 1. a base; 2. an inner layer; 3. an outer layer; 31. a window; 4. a buffer layer; 41. opening a hole in a hexagon; 42. a strip-shaped crack; 43. a slit unit; 44. a triangular entity; 5. a sealing part; 6. an opening side; 7. bonding edges; 8. and (4) folding the edges.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

The following detailed description is provided for the specific embodiments of the present invention.

As shown in fig. 1, for the utility model provides a pair of structure diagram of envelope, it places the chamber to have in the envelope, it encloses into and has one side opening by base member 1 to place the chamber, base member 1 of envelope includes inlayer 2, outer 3 and buffer layer 4, inlayer 2, outer 3 and buffer layer 4 are the integral structure, inlayer 2 with outer 3 coincide and form inclosed cushion chamber between the two, the cushion chamber intussuseption is filled with buffer layer 4, buffer layer 4 encircles place the chamber.

In the embodiment of the present invention, the envelope can have two surfaces, i.e. the front surface and the back surface, in this embodiment, the placing cavity for placing the content is enclosed by the substrate 1 of the envelope, and the substrate 1 of the envelope has the buffer layer 4, i.e. the buffer layer 4 is arranged on both the front surface and the back surface of the envelope for buffering; the inner layer 2, the outer layer 3 and the buffer layer 4 are integrated, the integrity and the strength of the envelope can be enhanced through the integrated structure of the inner layer 2 and the outer layer 3, and the buffer performance is better as the front cover is communicated with the buffer layer 4 in the back; when the envelope is produced, the buffer layers 4 do not need to be filled in the front surface and the back surface respectively, only the buffer layers 4 need to be filled in the buffer cavities, and then the substrate 1 is folded and stuck to form the envelope; the production is more convenient.

In an embodiment of the present invention, the envelope may have a front cover and a back cover in a structural form, the substrate 1 of the envelope encloses a placing cavity for placing letters, documents, small articles, etc., and one side of the substrate 1 is opened for placing articles into the placing cavity.

In one embodiment of the present invention, the inner layer 2, the outer layer 3 and the buffer chamber of the envelope form the base 1 structure of the envelope, and in addition, the envelope can also have a sealing structure. Form the cushion chamber between inlayer 2, the outer 3 of envelope, inlayer 2 and outer 3 can paste each other in the edge, and the cavity that the centre vacates is the cushion chamber, and the buffer layer 4 that the cushion intracavity was filled is used for the buffering.

The utility model discloses an in the embodiment, because inlayer 2, outer 3, buffer layer 4 are the integrated structure, can pack buffer layer 4 to the cushion chamber earlier, form the base member 1 of envelope after pasting inlayer 2 and outer 3, can form fashioned envelope through folding, pasting with base member 1 again.

As a preferred embodiment of the present invention, the buffer layer 4 is a honeycomb paper with hexagonal openings 41, or the buffer layer 4 is a kraft paper with bar-shaped slits 42 disposed in staggered array.

In one embodiment, as shown in fig. 2, the honeycomb paper with hexagonal openings 41 may be regular hexagonal openings, which are formed by bonding several layers of raw paper by glue to form an infinite number of hollow three-dimensional regular hexagons, forming an integral stressed member. The stress effect and the buffering effect are better.

As shown in fig. 3, in one embodiment, the cushioning layer 4 is a single-layer kraft paper, a plurality of arrays of strip-shaped cracks 42 are formed on the kraft paper, each strip-shaped crack 42 is an array unit, and the strip-shaped cracks 42 are parallel and staggered with each other. In fact, by setting the length of the stripe-shaped slits 42 and the distance between the stripe-shaped slits, the openings of the stretched stripe-shaped slits may be regular hexagons. The buffer chamber may be filled with a stretched kraft paper. Due to the fact that the strip-shaped cracks 42 in adjacent rows are staggered, the buffer layer 4 is stretched, when the stretching direction is not parallel to the direction of the strip-shaped cracks 42, due to the fact that the strip-shaped cracks 42 cannot be stressed, pulling force can be transmitted along the entity on the paper of the buffer layer 4, the strip-shaped cracks 42 can be stressed to be opened, and the whole paper of the buffer layer 4 can form a space structure to buffer.

As shown in fig. 4, as another preferred embodiment of the present invention, the buffer layer 4 is provided with two slit units 43 distributed in an array, and the opening shape of the slit unit 43 on the buffer layer 4 is two connected slits with a set included angle.

In one embodiment, the slit units 43 formed on the buffer layer 4 are distributed in an array, and the slit units 43 have two connected slits, that is, have a common end, so that the slit units 43 themselves form an angle of a "triangle", where the entity of the buffer layer 4 corresponding to the slit units 43 is also a triangular entity, the lengths of the two slits may be equal, and the included angle between the two slits is not limited, and is preferably an obtuse angle. Since the slit units 43 are arranged in an array on a single layer of the letter sheet, they may have two array directions forming "rows" and "columns", and the two array directions may not necessarily be perpendicular, i.e., the rows and columns may not necessarily be perpendicular. Because the crack units 43 are two cracks with the same starting point, which are equivalent to a broken line-shaped crack, the continuous entity on the paper of the buffer layer 4 is also relatively zigzag, when the paper is stretched, the transmission of force on the paper is also zigzag due to the existence of the crack units 43, so that the buffer layer 4 can extend along the stretching direction and shrink along the direction vertical to the stretching direction, and the buffer layer 4 deforms integrally; the deformed buffer layer 4 opens at the slit unit 43, and a triangular solid body 44 is warped. In this embodiment, when the direction of stretching the buffer layer 4 is not parallel to the perpendicular line of the two crack angle bisectors of the crack unit 43, the shape of the crack unit 43 makes the included angle of the two cracks have a tendency to decrease when being stressed, so that the buffer layer 4 deforms more smoothly without tearing the paper; meanwhile, the deformed triangular solid 44 at the crack can make the deformed paper more three-dimensional, and the buffering effect is better.

In one embodiment, the buffer layer 4 after being subjected to tensile deformation may be filled into the buffer cavity.

As another preferred embodiment of the present invention, the buffer cavity is internally overlapped with a plurality of buffer layers 4, and the triangle entities 44 corresponding to the crack units 43 in the two adjacent buffer layers 4 are correspondingly connected. In this embodiment, every layer of buffer layer is through the equal space spatial structure after the drawing, when two-layer buffering layer adds, connect the triangle-shaped entity 44 of two adjacent buffer layers, specifically can be after cutting crack unit 43, superpose two-layer buffer layer 4, exert impact pressure to triangle-shaped entity 44, can link together triangle-shaped entity 44 extrusion, be equivalent to connecting two-layer buffer layer 4 as a whole, when retching buffer layer 4 this moment, two-layer buffer layer 4 forms more complicated space spatial structure, further promote buffering effect. It is of course also possible to stack more layers of the buffer layer 4 and connect the triangular solids 44. The buffer performance of the interweaving structure formed by the multiple buffer layers 4 is better.

As another preferred embodiment of the present invention, the included angle between the two cracks of the crack unit 43 is 120 °, the first array direction thereof is the same as one of the crack directions, the second array direction thereof is the same as the other crack direction, the spacing distance of the crack unit 43 in the first array direction is the same as the spacing distance thereof in the first array direction, and the spacing distance is greater than 1.5 times of the length of the crack. In this embodiment, a specific structure is provided for arranging the array of the slit units 43 on the buffer layer 4, for the angle of the slit of the opening shape of the slit unit 43, when the angle is greater than 90 °, the deformation amount of the buffer layer during stretching is suitable, and the slit unit is easily stretch-formed, when the angle is close to 180 °, that is, the opening shape is a close straight line, the tearing effect of the opening on the buffer layer is stronger, and the original shape is more easily recovered after deformation, further, when the angle is 120 °, the buffer layer can have a suitable deformation amount and sufficient strength. Therefore, the opening angle of 120 ° and the distance between the arrays can deform the cushion layer 4 well when stretched, and the strength of the paper sheet when stretched can be maintained.

As shown in fig. 5, as another preferred embodiment of the present invention, one side of the envelope opening is an opening side 6, the opposite side is a folding side 8, two sides adjacent to the opening side 6 are bonding sides 7, the folding side 8 is formed by folding the substrate 1, and the bonding sides 7 are two long sides for bonding the substrate 1 to form the envelope.

In one embodiment, because the inner layer 2, the outer layer 3 and the buffer layer 4 are all of an integral structure, the envelope needs to be folded when being formed, the folded edge is the folding edge 8, the folding edge 8 is opposite to the opening side 6, two adjacent edges of the folding edge 8 are formed by bonding, namely the bonding edge 7, the folding edge 8 is used as the bottom edge of the envelope, when the envelope is erected, the bottom edge is non-bonded, the bearing capacity is stronger, and the buffer layer 4 is arranged inside the bottom edge, and the buffer capacity is also certain.

As another preferred embodiment of the present invention, the envelope further includes a sealing portion 5, and the sealing portion 5 corresponds to the opening side 6 and is used for sealing the opening side 6.

As another preferred embodiment of the present invention, the sealing part 5 is an extension of one side of the envelope opposite to the other side, and the sealing part 5 is provided with a sealing glue. The sealing part 5 is formed by extending a part of the front surface of the envelope when the envelope is formed, the sealing glue is arranged at the end part, the sealing glue can be a double-sided glue, when the envelope needs to be sealed, the sealing part 5 can be adhered to the back surface of the envelope by tearing off the rubber of the double-sided glue, and the articles in the envelope are kept secret.

As another preferred embodiment of the utility model, sealing 5 is relative envelope base member 1 components of a whole that can function independently sets up, sealing 5 be used for through with opening side 6 two sides paste respectively in order to seal placing the chamber, sealing 5 is provided with twice sealing glue. In the present embodiment, the sealing portion 5 is provided separately from the envelope substrate 1, and can be provided with two sealing glues at both ends, respectively, and can be stuck to the front surface of the envelope and the back surface of the envelope at one time, so that the envelope can be sealed. Normally, the opening side 6 can be sealed with a new sealing portion 5 by tearing the sealing portion 5 even when opening the envelope, and the envelope can be reused while meeting the use habit for the envelope.

As shown in fig. 1, as another preferred embodiment of the present invention, a window 31 is opened on the outer layer 3. The buffer layer 4 in the buffer cavity is conveniently displayed to a user by arranging the window 31 on the outer layer 3.

The embodiment of the utility model provides an envelope, set up integrative base member 1 in this envelope, make the integral bearing capacity of envelope, cushioning property promote to some extent, and make more simple and convenient; by optimizing the structure of the buffer layer 4, different structures of the buffer layer 4 are provided, so that the buffer performance of the buffer layer 4 is further improved; the envelope can be reused by providing the separable sealing portion 5.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and any modifications, equivalents, improvements, etc. made within the spirit and principles of the present invention should be included within the scope of the present invention.

Claims

1. An envelope is characterized in that a placing cavity is formed in the envelope, the placing cavity is enclosed by a base body and is provided with an opening on one side, the base body of the envelope comprises an inner layer, an outer layer and a buffer layer, the inner layer, the outer layer and the buffer layer are all of an integrated structure, the inner layer and the outer layer are overlapped, a closed buffer cavity is formed between the inner layer and the outer layer, the buffer cavity is filled with the buffer layer, and the buffer layer surrounds the placing cavity;

the buffer layer is honeycomb paper with hexagonal open pores, or kraft paper with strip-shaped cracks distributed in an array staggered manner; or the buffer layer is provided with crack units distributed in an array manner, and the shape of the opening of each crack unit on the buffer layer is two connected cracks with a set included angle.

2. The envelope of claim 1, wherein a plurality of cushion layers are stacked in the cushion chamber, and triangular bodies corresponding to the slit units in two adjacent cushion layers are correspondingly connected.

3. The envelope of claim 2, wherein the two slits of the slit elements have an included angle of 120 °, a first array direction of the slit elements is the same as one of the slits, a second array direction of the slit elements is the same as the other slit direction, the slit elements are spaced apart in the first array direction by the same distance as the first array direction, and the spacing distance is greater than 1.5 times the length of the slits.

4. The envelope according to any one of claims 1 to 3, wherein one side of the envelope opening is an opening side, and opposite sides thereof are folded edges, and two sides adjacent to the opening side are adhesive edges formed by folding the substrate, and the adhesive edges are two long sides formed by adhering the substrate to each other.

5. The envelope according to claim 4, further comprising a flap corresponding to the open side for closing the open side.

6. The envelope of claim 5, wherein the flap is an extension of one side of the envelope relative to the other side of the envelope, the flap being provided with a strip of sealing compound.

7. The envelope according to claim 5, wherein the sealing portion is provided separately from the base of the envelope, the sealing portion is configured to seal the placing chamber by being stuck to both sides of the opening side, and the sealing portion is provided with two sealing rubbers.

8. The envelope according to any one of claims 1 to 3, wherein the outer layer is provided with a window.