Telescopic paper angle bead

Abstract

The utility model discloses a telescopic paper corner protector, which relates to the field of paper corner protectors and comprises a hard paper board I. One end of the hard paper board is fixedly connected with a hard paper block I. The hard paper block I and a hard paper block II are arranged in a staggered and equal-length manner, and the end of the hard paper block II is fixedly connected with the end wall of the hard paper board II. One end wall of the hard paperboard is fixedly connected with a first long rod. When the paper angle bead needs to be unfolded, the first hard paper board and the second hard paper board are shifted towards the separating direction, then the first hard paper board and the second hard paper board are unfolded, and at the moment, the first hard paper block fixedly connected with one side wall of the hard paper board and the second hard paper block fixedly connected with the side wall of the second hard paper board move in a staggered mode; the first hard paperboard and the second hard paperboard are clamped to the two corners of the packaging box body in the horizontal direction respectively, in this way, the paper corner protectors are installed, and then the paper corner protectors arranged at the four corners of the packaging box body are fixed to the packaging box body through winding of a packaging bag.

Description

Technical Field

[0001] The utility model relates to the field of paper corner protectors, in particular to a telescopic paper corner protector. Background Art

[0002] Paper corner protector is a widely used packaging material used to protect the corners and edges of products during transportation and storage to reduce damage and wear. It can be part of the product or part of the packaging. In order to increase the strength of paper corner protectors, manufacturers will use multi-layer lamination to increase strength and make them more durable.

[0003] The length of the existing paper corner protectors is fixed, so when you need to install paper corner protectors on the corners of packaging boxes, for example, you need to choose paper corner protectors of appropriate length. However, the size of the paper corner protectors is not exactly the same as the length of the corners of the packaging boxes, resulting in the paper corner protectors not being able to protect the corners of the packaging boxes well.

[0004] Therefore, it is necessary to invent a telescopic paper corner protector to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a retractable paper corner protector to solve the problem that the length of the existing paper corner protector proposed in the above-mentioned background technology is fixed, so when it is necessary to install the paper corner protector on the corner of the packaging box, it is necessary to select a paper corner protector of a suitable length, but the size of the paper corner protector is not completely the same as the length of the corner of the packaging box, resulting in the paper corner protector not being able to protect the corner of the packaging box well.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a telescopic paper corner protector, comprising a hard cardboard one, wherein the end of the hard cardboard one is fixedly connected to a hard paper block one, and the hard paper block one and the hard paper block two are staggered and arranged with equal lengths, and the two ends of the hard paper blocks are fixedly connected to the two end walls of the hard cardboard, the end wall of the hard cardboard one is fixedly connected to a long rod one, and the long rod one is movably connected to a movable groove one reserved in the hard paper block two, the two end walls of the hard cardboard are fixedly connected to a long rod two, and the long rod two is movably connected to a movable groove two reserved inside the hard paper block one, and the end of the hard paper block two is fixedly connected to a square protrusion three, and the square protrusion three is movably connected to the movable groove three reserved in the hard paper block one.

[0007] Preferably, the first hardboard and the second hardboard are both composed of three pieces of cardboard, and the three pieces of cardboard form a semi-closed right-angle area.

[0008] The first hardboard and the second hardboard are symmetrically distributed.

[0009] Preferably, the hard paper blocks are provided in a plurality, and the plurality of hard paper blocks are glued to the "L"-shaped side wall surface of the hard paperboard at equal intervals in an "L" shape, and the plurality of hard paper blocks in the same plane are distributed in a straight line at equal intervals.

[0010] Preferably, the hard paper blocks 2 are provided in a plurality, and the plurality of hard paper blocks 2 are glued to the "L"-shaped side wall surface of the hard paperboard 2 in an "L" shape at equal intervals, and the plurality of hard paper blocks 2 in the same plane are distributed in a straight line at equal intervals.

[0011] Preferably, the long rods 1 are provided with two in number, and the two long rods 1 are respectively fixedly connected to the front end side wall and the rear end side wall of the top plate of the hard cardboard 1, and the two long rods 1 and the hard paper block 1 fixedly connected to the end side wall of the top plate of the hard cardboard 1 are arranged in a straight line with equal intervals; the end of the long rod 1 away from the hard cardboard 1 is fixedly connected with two square protrusions 1, the two square protrusions 1 are symmetrically arranged with reference to the long rod 1 as the symmetry axis, and the two square protrusions 1 are arranged parallel to the long rod 1; the two long rods 1 correspond to the positions of the hard paper block 2 fixedly connected to the side walls of the hard cardboard 2, and the outer walls of the long rod 1 and the square protrusions 1 are both in contact with and slidably connected to the inner wall of the movable groove 1 reserved inside the corresponding hard paper block 2.

[0012] Preferably, there is one long rod two, and the long rod two is fixedly connected to the side wall of the lower end portion of the front side plate of the hard cardboard two, and the long rod two and the hard paper block two fixedly connected to the side wall of the end portion of the front plate of the hard cardboard two are arranged in a straight line with equal intervals; the end of the long rod two away from the hard cardboard two is fixedly connected to two square protrusions two, the two square protrusions two are symmetrically arranged with reference to the long rod two as the symmetry axis, and the two square protrusions two are arranged parallel to the long rod two; the long rod two corresponds to the position of the hard paper block one fixedly connected to one side wall of the hard cardboard, and the outer walls of the long rod two and the square protrusion two are both in contact with and slidably connected to the inner wall of the movable groove two reserved inside the corresponding hard paper block one.

[0013] Preferably, the end of the movable groove 1 close to the hard cardboard 2 is completely open, and the end of the movable groove 1 close to the hard cardboard 1 is half-open.

[0014] Preferably, the end of the movable groove 2 close to the hardboard 1 is completely open, and the end of the movable groove 2 close to the hardboard 2 is half-open.

[0015] Preferably, both side walls of the hard paper block 2 which is not provided with the movable groove 1 are provided with square protrusions 3, and the outer wall of the square protrusions 3 is attached to and slidably connected with the outer wall of the movable groove 3 reserved in the hard paper block 1, and the movable groove 3 is connected with the end of the hard paper block 1 close to the hard cardboard 1, and the movable groove 3 is not connected with the other end of the hard paper block 1.

[0016] In the above technical scheme, the technical effects and advantages provided by the utility model are as follows: when the paper corner protector needs to be unfolded, the utility model pushes the hard cardboard one and the hard cardboard two in the direction of separation, and then unfolds the hard cardboard one and the hard cardboard two. At this time, the hard paper block one fixedly connected to one side wall of the hard cardboard and the hard paper block two fixedly connected to the side wall of the hard cardboard two move alternately, and the hard cardboard one and the hard cardboard two are respectively clamped on the two horizontal corners of the packaging box. In this way, the installation of the paper corner protector is completed, and the paper corner protectors set at the four corners of the packaging box can be fixed to the packaging box by winding the packaging bag.

[0017] When the hardboard 1 and the hardboard 2 are pushed toward the direction of separation, the long rod 1 and the long rod 2 move in the matching movable groove 1 and the movable groove 2 respectively, thus ensuring the relative stability of the movement of the hardboard 1 and the hardboard 2. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a stereoscopic diagram of the overall structure of the utility model.

[0020] Figure 2 This is an exploded development diagram of the first perspective of the hardboard 1 and the hard paper block 1, as well as the hardboard 2 and the hard paper block 2 of the utility model.

[0021] Figure 3 The second perspective exploded view of the hardboard 1 and the hard paper block 1 as well as the hardboard 2 and the hard paper block 2 of the utility model.

[0022] Figure 4 It is a partially cutaway stereoscopic view of the hard paper block of the present invention.

[0023] Figure 5 For the utility model Figure 3 A magnified view of the structure in the middle.

[0024] Figure 6 It is a three-dimensional diagram of the overall structure of the paper corner protector of the utility model when it is folded.

[0025] Description of reference numerals:

[0026] 1. One hard cardboard; 2. One hard paper block; 3. Two hard cardboards; 4. Two hard paper blocks; 5. One long rod; 6. One square protrusion; 7. One movable groove; 8. Two long rods; 9. Two square protrusions; 10. Two movable grooves; 11. Three square protrusions; 12. Three movable grooves. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0028] The utility model provides Figure 1-6 A telescopic paper corner protector is shown, comprising a hard cardboard 1, a hard paper block 2 is fixedly connected to the end of the hard cardboard 1, and the hard paper block 2 and the hard paper block 4 are staggered and arranged with equal lengths, and the end of the hard paper block 24 is fixedly connected to the end wall of the hard cardboard 23, a long rod 5 is fixedly connected to the end wall of the hard cardboard 1, and the long rod 5 is movably connected to a movable groove 7 reserved in the hard paper block 24, a long rod 28 is fixedly connected to the end wall of the hard cardboard 23, and the long rod 28 is movably connected to the movable groove 2 10 reserved inside the hard paper block 2, and a square protrusion 3 11 is fixedly connected to the end of the hard paper block 24, and the square protrusion 3 11 is movably connected to the movable groove 3 12 reserved in the hard paper block 2.

[0029] Both the hardboard 1 and the hardboard 2 3 are composed of three pieces of cardboard, and the three pieces of cardboard form a semi-closed right-angle area.

[0030] The hardboard 1 and the hardboard 2 3 are symmetrically distributed.

[0031] There are several hard paper blocks 2, and several hard paper blocks 2 are glued to the "L"-shaped side wall surface of the hard paperboard 1 at equal intervals in an "L" shape, and several hard paper blocks 2 in the same plane are distributed in a straight line at equal intervals.

[0032] There are a number of hard paper blocks 2 4, and the hard paper blocks 2 4 are glued to the "L"-shaped side wall surface of the hard paperboard 2 3 in an "L" shape at equal intervals. The hard paper blocks 2 4 in the same plane are distributed in a straight line at equal intervals, ensuring that the hard paper blocks 1 2 and 4 can be staggered and fit together for movement.

[0033] There are two long rods 5, and the two long rods 5 are fixedly connected to the front end side wall and the rear end side wall of the top plate of the hard cardboard 1 respectively, and the two long rods 5 and the hard paper block 2 fixedly connected to the side wall of the end of the top plate of the hard cardboard 1 are arranged in a straight line with equal intervals; two square protrusions 6 are fixedly connected to the end of the long rod 5 away from the hard cardboard 1, and the two square protrusions 6 are symmetrically arranged with reference to the long rod 5 as the symmetry axis, and the two square protrusions 6 are arranged parallel to the long rod 5; the two long rods 5 correspond to the positions of the hard paper block 4 fixedly connected to the side walls of the hard cardboard 23, and the outer walls of the long rod 5 and the square protrusions 6 are both in contact with and slidably connected to the inner walls of the movable grooves 7 reserved inside the corresponding hard paper blocks 24, to ensure stable operation of the paper corner protectors when unfolded.

[0034] There is one long rod 8, and the long rod 8 is fixedly connected to the side wall of the lower end of the front side plate of the hard cardboard 23, and the long rod 8 and the hard paper block 24 fixedly connected to the side wall of the end of the front plate of the hard cardboard 23 are arranged in a straight line with equal intervals; the end of the long rod 28 away from the hard cardboard 23 is fixedly connected with two square protrusions 29, the two square protrusions 29 are symmetrically arranged with reference to the long rod 28 as the symmetry axis, and the two square protrusions 29 are arranged parallel to the long rod 28; the long rod 28 corresponds to the position of the hard paper block 2 fixedly connected to the side wall of the hard cardboard 1, and the outer walls of the long rod 28 and the square protrusions 29 are both in contact with and slidably connected to the inner wall of the movable groove 210 reserved inside the corresponding hard paper block 2, to ensure the stability of the movement when the paper corner protector is unfolded.

[0035] The end of the movable groove 7 near the hardboard 23 is completely open, and the end of the movable groove 7 near the hardboard 1 is half-open, so that the end of the long rod 5 can directly abut against the side wall of the hardboard 23, so that the entire paper corner guard is in a closed state when it is folded. Figure 6 shape.

[0036] The end of the movable groove 10 near the hardboard 1 is completely open, and the end of the movable groove 10 near the hardboard 3 is half open, which ensures that the end of the long rod 8 can directly abut against the side wall of the hardboard 1, so that the entire paper corner guard is in a closed state when it is folded. Figure 6 shape.

[0037] Both side walls of the hard paper block 2 4 without the movable groove 1 7 are connected with square protrusions 3 11, and the outer wall of the square protrusions 3 11 is attached to and slidably connected with the outer wall of the movable groove 3 12 reserved in the hard paper block 2, and the movable groove 3 12 is connected with the end of the hard paper block 2 close to the hard cardboard 1, and the movable groove 3 12 is not connected with the other end of the hard paper block 2, and the square protrusions 3 11 move in the movable groove 3 12 reserved in the hard paper block 2, thereby ensuring the relative stability of the movement of the hard cardboard 1 and the hard cardboard 2 3.

[0038] Working principle: when using a telescopic paper corner protector, first when the paper corner protector needs to be unfolded, push the hard cardboard 1 and the hard cardboard 2 3 in the direction of separation, when the hard cardboard 1 and the hard cardboard 2 3 are unfolded, the movement of the hard cardboard 1 and the hard cardboard 2 3 drives the hard paper block 1 2 fixedly connected to the side wall of the hard cardboard 1 and the hard paper block 2 4 fixedly connected to the side wall of the hard cardboard 2 3 to perform staggered unfolding movements, the long rod 1 5 and the long rod 2 8 move in the matching movable groove 1 7 and the movable groove 2 10 respectively, and at the same time, the square protrusion 3 11 fixedly connected to the end of the hard paper block 2 4 moves in the movable groove 3 12 reserved in the hard paper block 2, thus ensuring the relative stability of the movement of the hard cardboard 1 and the hard cardboard 2 3, and then the hard cardboard 1 and the hard cardboard 2 3 are respectively clamped on the two horizontal corners of the packaging box, and the installation of the paper corner protector is completed.

[0039] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A telescopic paper corner protector, comprising a hardboard (1), characterized in that: The end of the hard paperboard (1) is fixedly connected to the hard paper block (2), and the hard paper block (2) and the hard paper block (4) are staggered and arranged with equal lengths, and the end of the hard paper block (4) is fixedly connected to the end wall of the hard paperboard (3), the end wall of the hard paperboard (1) is fixedly connected to the long rod (5), and the long rod (5) is movably connected to the movable groove (7) reserved in the hard paper block (4), the end wall of the hard paperboard (3) is fixedly connected to the long rod (8), and the long rod (8) is movably connected to the movable groove (10) reserved in the hard paper block (2), and the end of the hard paper block (4) is fixedly connected to the square protrusion (11), and the square protrusion (11) is movably connected to the movable groove (12) reserved in the hard paper block (2).

2. The retractable paper corner protector according to claim 1, characterized in that: The hard cardboard one (1) and the hard cardboard two (3) are both composed of three pieces of cardboard, and the three pieces of cardboard form a semi-enclosed right-angle area; the hard cardboard one (1) and the hard cardboard two (3) are symmetrically distributed.

3. The retractable paper corner protector according to claim 1, characterized in that: The hard paper blocks (2) are provided in a plurality, and the plurality of hard paper blocks (2) are glued to the "L"-shaped side wall surface of the hard paperboard (1) in an "L" shape at equal intervals, and the plurality of hard paper blocks (2) in the same plane are distributed in a straight line at equal intervals.

4. The retractable paper corner protector according to claim 1, characterized in that: The hard paper blocks 2 (4) are provided in a plurality, and the plurality of hard paper blocks 2 (4) are glued to the "L"-shaped side wall surface of the hard paper board 2 (3) at equal intervals in an "L" shape, and the plurality of hard paper blocks 2 (4) in the same plane are distributed in a straight line at equal intervals.

5. The retractable paper corner protector according to claim 1, characterized in that: The long rods (5) are provided in two numbers, and the two long rods (5) are respectively fixedly connected to the front side wall and the rear side wall of the top plate of the hard paperboard (1), and the two long rods (5) and the hard paper block (2) fixedly connected to the end side wall of the top plate of the hard paperboard (1) are arranged in a straight line with equal spacing; the end of the long rod (5) away from the hard paperboard (1) is fixedly connected with two square protrusions (6), the two square protrusions (6) are symmetrically arranged with reference to the long rod (5) as the symmetry axis, and the two square protrusions (6) are arranged parallel to the long rod (5); the two long rods (5) correspond to the positions of the hard paper block (4) fixedly connected to the side wall of the hard paperboard (3), and the outer walls of the long rod (5) and the square protrusions (6) are both in contact with and slidably connected to the inner wall of the movable groove (7) reserved inside the corresponding hard paper block (4).

6. The retractable paper corner protector according to claim 1, characterized in that: The number of the second long rod (8) is one, and the second long rod (8) is fixedly connected to the side wall of the lower end of the front side plate of the second hardboard (3), and the second long rod (8) and the second hardboard block (4) fixedly connected to the side wall of the front plate of the second hardboard (3) are arranged in a straight line with equal spacing; the end of the second long rod (8) away from the second hardboard (3) is fixedly connected to two square protrusions (9), the two square protrusions (9) are symmetrically arranged with reference to the second long rod (8) as a symmetry axis, and the two square protrusions (9) are arranged parallel to the second long rod (8); the position of the second long rod (8) and the first hardboard block (2) fixedly connected to the side wall of the first hardboard (1) corresponds to the position of the first hardboard block (2), and the outer walls of the second long rod (8) and the second square protrusion (9) are both in contact with and slidably connected to the inner wall of the second movable groove (10) reserved inside the corresponding first hardboard block (2).

7. The retractable paper corner protector according to claim 5, characterized in that: The end of the movable groove 1 (7) close to the hard cardboard 2 (3) is completely open, and the end of the movable groove 1 (7) close to the hard cardboard 1 (1) is half-open.

8. The retractable paper corner protector according to claim 6, characterized in that: The end of the movable groove 2 (10) close to the hard cardboard 1 (1) is completely open, and the end of the movable groove 2 (10) close to the hard cardboard 2 (3) is half-open.

9. The retractable paper corner protector according to claim 1, characterized in that: Both side walls of the hard paper block 2 (4) not provided with the movable groove 1 (7) are provided with square protrusions 3 (11), and the outer wall of the square protrusions 3 (11) is attached to and slidably connected with the outer wall of the movable groove 3 (12) reserved in the hard paper block 1 (2), and the movable groove 3 (12) is connected to the end of the hard paper block 1 (2) close to the hard paper board 1 (1), and the movable groove 3 (12) is not connected to the other end of the hard paper block 1 (2).

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