Quick connecting buckle for flame-retardant plastic cardboard box

Abstract

The utility model discloses a quick connecting buckle for a flame-retardant plastic paperboard box in the field of carton connecting pieces, which comprises a female buckle and a male nail which are made of plastic flame-retardant materials, so that the problem of rusting of the connecting pieces can be effectively avoided, the female buckle is clamped with the male nail, the female buckle comprises a limiting part and a connecting piece which are integrally formed, and the limiting part is clamped with the male nail. The male nail comprises a pressing part and a connecting section, the pressing part and the connecting section are integrally formed, a plurality of clamping parts are arranged on the outer side of the connecting section, the connecting section is connected with the inserting groove in an inserted mode, and the clamping parts are connected with the clamping grooves in a clamped mode. The female buckle and the male nail are arranged in the connecting piece, the buckling protruding blocks distributed side by side are arranged in the connecting piece, the buckling grooves are formed between the adjacent buckling protruding blocks, the multiple clamping parts are arranged on the outer side of the connecting section, in the process that the female buckle and the male nail are connected with the heavy carton, the connecting section is inserted into the inserting groove, the clamping parts are connected with the buckling grooves in a clamped mode, and the stress force is high.

Description

Technical Field

[0001] The utility model relates to the technical field of carton connectors, in particular to a quick connecting buckle for a flame-retardant plastic cardboard box. Background Technique

[0002] Heavy cardboard boxes are widely used in the transportation packaging and logistics industries because of their good cushioning and shock-absorbing performance, as well as their advantages such as being lightweight, strong, having sufficient raw materials, low cost, being easy to print and store, and facilitating assembly line and mechanized operations during the packaging process, having good air permeability and absorption performance, strong adaptability in the circulation link, and being recyclable. With the continuous development of the transportation industry, in order to better protect the transported items, heavy cardboard boxes on the market currently have good flame-retardant performance. Therefore, the connectors used to join heavy cardboard boxes should have excellent flame-retardant performance;

[0003] At present, the most commonly used joining method for heavy cardboard boxes is nailing. It is used because of its simplest equipment and low cost, but its production efficiency is also the lowest, the appearance effect is poor, and after nailing, the nails will damage the cardboard box, and the nails bent inside the cardboard box may also scratch the inner package. In addition, nailing is prone to rusting during sea transportation. Content of the Utility Model

[0004] In order to overcome the deficiencies of the prior art solutions, the utility model provides a quick connecting buckle for a flame-retardant plastic cardboard box, which can effectively solve the technical problems that the most commonly used joining method for heavy cardboard boxes at present is nailing. It is used because of its simplest equipment and low cost, but its production efficiency is also the lowest, the appearance effect is poor, and after nailing, the nails will damage the cardboard box, and the nails bent inside the cardboard box may also scratch the inner package. In addition, nailing is prone to rusting during sea transportation.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a quick connecting buckle for a flame-retardant plastic cardboard box, including a female buckle and a male nail made of a plastic flame-retardant material. The female buckle is snapped with the male nail. The female buckle includes a limiting part and a connecting piece integrally formed. The inside of the connecting piece is hollow to form a slot, and at least three buckle convex blocks are arranged side by side inside the connecting piece. A buckle groove is formed between adjacent buckle convex blocks. The male nail includes a pressing part and a connecting section integrally formed. A plurality of engaging parts are arranged on the outer side of the connecting section. The connecting section is inserted into the slot, and the engaging parts are snapped with the buckle groove.

[0006] Preferably, the connecting piece is cylindrical, and the buckle convex blocks are arranged at the front end of the connecting piece and integrally formed with it.

[0007] Preferably, the connecting member is provided with a deformation groove penetrating through its side wall. The deformation groove extends along the length direction of the connecting member, and the length of the deformation groove is less than the length of the connecting member.

[0008] Preferably, one side of the fastening convex block is an arc surface, and the other side of the fastening convex block is a flat surface. The engaging portion and the connecting section are of an integral structure, and the engaging portion is frustum-shaped. One side of the engaging portion is an arc surface, and one side of the engaging portion is a flat surface.

[0009] Preferably, the edges of the limiting portion and the pressing portion are both arc-shaped.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0011] (1) By providing a female buckle and a male nail made of a plastic flame-retardant material, the problem of rust on the connecting member can be effectively avoided.

[0012] (2) Since the inside of the connecting member is hollow to form a slot, and fastening convex blocks are arranged side by side inside the connecting member, and fastening grooves are formed between adjacent fastening convex blocks, and a plurality of engaging portions are arranged on the outer side of the connecting section. During the engagement process of the female buckle and the male nail with the heavy cardboard box, the connecting section is inserted into the inside of the slot, and the engaging portion is engaged with the fastening groove, with strong bearing capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of the overall structure of the quick connection buckle for a flame-retardant plastic cardboard box of the present utility model;

[0014] Figure 2 is an exploded view of the structure of the quick connection buckle for a flame-retardant plastic cardboard box of the present utility model from the front view angle;

[0015] Figure 3 is an exploded view of the structure of the quick connection buckle for a flame-retardant plastic cardboard box of the present utility model from the rear view angle;

[0016] Figure 4 is a combined state diagram of the quick connection buckle for a flame-retardant plastic cardboard box of the present utility model;

[0017] Figure 5 is a usage state diagram of the quick connection buckle for a flame-retardant plastic cardboard box of the present utility model;

[0018] Figure 6 is an exploded view of the assembly structure of the quick connection buckle for a flame-retardant plastic cardboard box of the present utility model and the cardboard box;

[0019] Figure 7 is Figure 6 an enlarged view of the structure of part A in

[0020] Figure 8This is the assembly sectional view of the quick connection buckle of the flame-retardant plastic cardboard box of the present utility model and the cardboard box;

[0021] Figure 9 It is Figure 7 The enlarged view of the structure of part B in

[0022] Reference numerals in the figure:

[0023] 1 - connecting section, 2 - pressing part, 3 - deformation groove, 4 - limiting part, 5 - connecting piece, 6 - male nail, 8 - buckling groove, 9 - buckling convex block, 10 - slot, 11 - female buckle, 12 - cardboard box, 13 - through hole. Specific implementation mode

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0025] As Figures 1-9 shown, the present utility model provides a quick connection buckle for a flame-retardant plastic cardboard box. The connection buckle is used for the joint at the forming tongue of a heavy cardboard box 12. The forming tongue of the heavy cardboard box 12 is provided with a through hole 13 for installing the connection buckle, including a female buckle 11 and a male nail 6 made of a plastic flame-retardant material. The plastic flame-retardant material is composed of the following raw materials in parts by weight: 10 - 15 parts of nano-silica, 3 - 7 parts of ammonium polyphosphate powder, 1 - 5 parts of aluminum hypophosphite, 4 - 9 parts of polylactic acid, 10 - 15 parts of antimony trioxide, 2 - 5 parts of 2,3-dichloropropyl ester, 3 - 7 parts of aluminum trihydrate, 6 - 10 parts of bromo-chloroalkyl phosphate diester, 1 - 4 parts of ethylene propylene diene monomer rubber, 0.5 - 2 parts of dispersion lubricant;

[0026] The female buckle 11 is snap-connected to the male nail 6. The female buckle 11 includes a limiting part 4 and a connecting part 5 which are integrally formed. The male nail 6 includes a pressing part 2 and a connecting section 1 which are integrally formed. The edges of the limiting part 4 and the pressing part 2 both have arcs. The connecting part 5 is column-shaped, and the inside of the connecting part 5 is hollow to form a slot 10. At least three snap-fit bumps 9 are arranged side by side inside the connecting part 5. The snap-fit bumps 9 are arranged at the front end of the connecting part 5 and are integrally formed with it. A snap-fit groove 8 is formed between adjacent snap-fit bumps 9. A deformation groove 3 is formed through the side wall of the connecting part 5. The deformation groove 3 extends along the length direction of the connecting part 5, and the length of the deformation groove 3 is less than the length of the connecting part 5. A plurality of engaging parts are arranged on the outer side of the connecting section 1. One side of the snap-fit bump 9 is an arc surface, and the other side of the snap-fit bump 9 is a flat surface. The engaging part and the connecting section 1 are of an integral structure, and the engaging part is frustum-shaped. One side of the engaging part is an arc surface, and one side of the engaging part is a flat surface. The engaging part is snap-connected to the snap-fit groove 8. During the process of the female buckle 11 and the male nail 6 being joined to the heavy cardboard box 12, when the male nail 6 is inserted into the female buckle 11, the arc surface of the engaging part is inserted into the inside of the slot 10 along the arc surface of the snap-fit bump 9. After being completely inserted, the engaging part is located inside the snap-fit groove 8, and the flat surface of the engaging part is in contact with the flat surface of the snap-fit bump 9. This setting can facilitate the insertion of the male nail 6 into the female buckle 11, but can effectively prevent the male nail 6 from falling off, with strong force resistance and connection stability. Moreover, since the connecting part 5 is provided with a deformation groove 3 that penetrates its side wall, when the male nail 6 is inserted into the female buckle 11, the connecting part 5 will deform, facilitating the insertion of the male nail 6 and the female buckle 11 to achieve insertion.

[0027] Compared with the traditional technology:

[0028] (1) By providing the female buckle 11 and the male nail 6 made of a plastic flame-retardant material, the problem of rust on the connecting part 5 can be effectively avoided;

[0029] (2) Since the interior of the connecting member 5 is hollow to form a slot 10, and fastening bumps 9 are arranged side by side inside the connecting member 5, and fastening grooves 8 are formed between adjacent fastening bumps 9, and a plurality of engaging portions are arranged on the outer side of the connecting section 1. During the engagement process of the female buckle 11 and the male nail 6 with the heavy cardboard box 12, the connecting section 1 is inserted into the interior of the slot 10, and the engaging portions are clamped with the fastening grooves 8. During the engagement process of the female buckle 11 and the male nail 6 with the heavy cardboard box 12, when the male nail 6 is inserted into the female buckle 11, the arc surface of the engaging portion is inserted into the interior of the slot 10 along the arc surface of the fastening bump 9. After being completely inserted, the engaging portion is located inside the fastening groove 8, and the plane of the engaging portion is in contact with the plane of the fastening bump 9. This setting can facilitate the insertion of the male nail 6 into the female buckle 11, but can effectively prevent the male nail 6 from falling off, with strong force resistance and connection stability. Moreover, since the connecting member 5 is provided with deformation grooves 3 penetrating its side wall, when the male nail 6 is inserted into the female buckle 11, the connecting member 5 will deform, facilitating the insertion of the male nail 6 and the female buckle 11 to achieve insertion.

[0030] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes falling within the meaning and scope of the equivalent elements of the claims in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A quick connection buckle for a flame-retardant plastic cardboard box, characterized in that, It includes a female buckle and a male nail made of a plastic flame retardant material. The female buckle is snap-connected with the male nail. The female buckle includes a limiting part and a connecting part formed integrally. The inside of the connecting part is hollow to form a slot, and at least three snap-fit bumps are arranged side by side inside the connecting part. A snap-fit groove is formed between adjacent snap-fit bumps. The male nail includes a pressing part and a connecting section formed integrally. A plurality of engaging parts are arranged on the outer side of the connecting section. The connecting section is inserted into the slot, and the engaging part is snap-connected with the snap-fit groove.

2. The quick connection buckle for a flame-retardant plastic cardboard box according to claim 1, wherein The connecting part is column-shaped, and the snap-fit bump is arranged at the front end of the connecting part and is integrally formed with it.

3. The quick connecting buckle for the flame-retardant plastic cardboard box according to any one of claims 1-2, characterized in that, The connecting part is provided with a deformation groove penetrating its side wall. The deformation groove extends along the length direction of the connecting part, and the length of the deformation groove is less than the length of the connecting part.

4. The quick connecting buckle for a flame-retardant plastic cardboard box according to claim 1, characterized in that One side of the snap-fit bump is an arc surface, and the other side of the snap-fit bump is a flat surface. The engaging part and the connecting section are of an integral structure, and the engaging part is frustum-shaped. One side of the engaging part is an arc surface, and one side of the engaging part is a flat surface.

5. The quick connecting buckle for a flame-retardant plastic cardboard box according to claim 1, characterized in that The edges of the limiting part and the pressing part both have a radian.

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