Welding-free packaging iron box

By using a snap-fit ​​and coil connection design without welding, the problems of low compressive strength and large welding positioning errors in packaging tin boxes are solved, achieving efficient production and cost reduction.

CN223673093UActive Publication Date: 2025-12-16T STAR TIN CAN
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Patent Information

Application Number
CN202423311149.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2025-12-16
Estimated Expiration
2034-12-31

AI Technical Summary

Technical Problem

Existing packaging tin boxes are made of single-layer tinplate, which has low compressive strength and is easy to deform. Furthermore, double-layer tinplate has large welding positioning errors, resulting in more defective products, resource waste, and high production costs.

Method used

The design employs a weld-free approach, connecting the inner and outer boxes through the interlocking blocks and interlocking wires. This avoids welding positioning errors and achieves box fixation and positioning. The winding wires connect the box body to the box bottom and the cover body to the cover plate, achieving a fixation without welding.

Benefits of technology

It effectively avoids defective products caused by welding positioning errors, reduces resource waste, lowers production costs, and improves the yield of high-quality products and production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a non-welding packaging iron box, which comprises a bottom box and a box cover, the box cover is covered on the bottom box, the bottom box comprises an outer box body and an inner box body, the inner box body is arranged in the outer box body, a clamping coiled wire is arranged in the outer box body, a clamping block is arranged on the outer wall of the inner box body, and the clamping coiled wire is connected with the clamping block. The upper end of the clamping block abuts against the lower end of the clamping winding wire, and the inner box body is fixedly connected with the outer box body. According to the utility model, through the cooperation of the clamping block and the clamping coiled wire, the connection and the limiting between the outer box body and the inner box body can be realized, welding is not needed, the phenomenon of defective products caused by large welding positioning errors can be effectively avoided, unnecessary resource waste is reduced, the production cost is reduced, and meanwhile, the rate of superior products can be effectively improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to tin packaging box technical field, especially a kind of welding-free packaging iron box. BACKGROUND

[0002] The packaging box is a box for packaging products, which can be classified by materials, such as paper box, iron box, wooden box, cloth box, leather box, acrylic box, corrugated packaging box, PVC box, etc., or by product names, such as moon cake box, tea box, Chinese wolfberry box, candy box, exquisite gift box, local specialty box, wine box, chocolate box, food, medicine and health product box, food packaging box, tea packaging box, stationery box, etc. The packaging box has the functions of ensuring product safety during transportation and improving product grade. The main material of the packaging iron box is tinplate.

[0003] The existing packaging iron box generally uses single-layer tinplate, but the compression strength of such packaging iron box is low, and it is easy to be compressed and deformed during transportation, which reduces the appearance of the packaging iron box and affects product sales. In order to improve the compression strength of the packaging iron box, the packaging iron box is designed as a double-layer tinplate structure. Currently, such packaging iron box is generally fixed together by welding two layers of tinplate. The positioning error of the two layers of tinplate during welding is large, which increases the number of defective workpieces, affects production quality, easily causes unnecessary resource waste, and increases production cost. UTILITY MODEL CONTENT

[0004] Therefore, it is necessary to provide a welding-free packaging iron box to solve the problems of large positioning error during welding of the packaging iron box with double-layer tinplate structure design, increase of defective workpieces, influence on production quality, easy cause of unnecessary resource waste and increase of production cost.

[0005] A welding-free packaging iron box includes a bottom box and a box cover. The box cover is covered on the bottom box. The bottom box includes an outer box body and an inner box body. The inner box body is installed in the outer box body. The inner box body is provided with a clamping block on the outer wall. The upper end of the clamping block is in abutment with the lower end of the clamping winding. The inner box body and the outer box body are fixedly connected.

[0006] The above welding-free packaging iron box can realize the connection and limiting between the outer box body and the inner box body through the cooperation of the clamping block and the clamping winding, without welding, which can effectively avoid the phenomenon of defective products caused by large welding positioning error, reduce unnecessary resource waste, reduce production cost, and effectively improve the yield rate.

[0007] In one of the embodiments, the outer box body comprises a box body and a box bottom, the clamping winding is arranged at the upper end of the box body, the lower end of the box body is provided with a first lower winding, the box bottom is provided with a second lower winding, the first lower winding is wound with the second lower winding, and the box body is fixedly connected with the box bottom.

[0008] In one of the embodiments, the lower end of the inner box body is provided with a lower abutting winding, and the lower abutting winding abuts with the box bottom.

[0009] In one of the embodiments, the box cover comprises a cover body and a cover plate, the cover body is provided with a first upper winding, the cover plate is provided with a second upper winding, the first upper winding is wound with the second upper winding, and the cover body is fixedly connected with the cover plate.

[0010] In one of the embodiments, the cover plate comprises a main plate part, an abutting part and an arc-shaped transition part, the main plate part abuts with the abutting part through the arc-shaped transition part, and the second upper winding is arranged at the end of the abutting part away from the arc-shaped transition part.

[0011] In one of the embodiments, the upper end of the inner box body is provided with an upper abutting winding, and the upper abutting winding abuts with the abutting part.

[0012] In one of the embodiments, the end of the cover body away from the first upper winding is provided with a clamping winding, and the clamping winding abuts with the outer wall of the inner box body.

[0013] In one of the embodiments, the main plate part is provided with a relief pattern. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is an internal structure diagram of the welding-free packaging iron box in one of the embodiments of the utility model;

[0015] Figure 2 It is an internal structure diagram of the welding-free packaging iron box in one of the embodiments of the utility model; Figure 1 It is an enlarged view of part A in the figure;

[0016] Figure 3 It is an enlarged view of part B in the figure; Figure 1 It is an enlarged view of part B in the figure;

[0017] Figure 4 It is an enlarged view of part C in the figure. Figure 1

[0018] Meaning of reference signs in the drawings:

[0019] 100 - welding-free packaging iron box;

[0020] ​10 - bottom box, 11 - outer box body, 111 - box body, 112 - box bottom, 113 - first lower fold line, 114 - second lower fold line, 115 - clamping fold line, 12 - inner box body, 121 - clamping block, 122 - pushing slope, 123 - lower abutting fold line, 123 - upper abutting fold line;

[0021] 20 - box cover, 21 - cover body, 211 - first upper fold line, 212 - clamping fold line, 22 - cover plate, 221 - main plate part, 222 - abutting part, 223 - arc-shaped transition part, 224 - second upper fold line. DETAILED DESCRIPTION

[0022] In order to make the above objectives, characteristics and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. It will be apparent, however, to one skilled in the art that the present application can be practiced without using some or all of these specific details, and that the present application is not limited to the specific embodiments disclosed below. In other instances, well-known methods, procedures and components have not been described in detail so as not to unnecessarily obscure aspects of the present application.

[0023] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0024] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0025] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on should do the broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be the intercommunication of two elements or the interaction of two elements, unless another definite limitation.For the ordinary skilled person in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0026] In the utility model, unless another definite provision and limitation, the first feature is "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium.Moreover, the first feature "over", "above" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or it only means that the horizontal height of the first feature is higher than that of the second feature.The first feature "under", "below" and "on" the second feature can be that the first feature is directly below or obliquely below the second feature, or it only means that the horizontal height of the first feature is less than that of the second feature.

[0027] It should be noted that when an element is referred to as "fixed to" or "provided on" another element, it can be directly on the other element or there can be a middle element.When an element is referred to as "connected to" another element, it can be directly connected to the other element or there can be a middle element.The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0028] Please refer to Figure 1 , the utility model discloses a welding-free packaging box of one embodiment, including bottom box 10 and box cover 20, the box cover 20 is covered on bottom box 10.

[0029] Please refer to Figure 1 And Figure 2 , the bottom box 10 includes outer box body 11 and inner box body 12, the outer box body 11 includes box body 111 and box bottom 112, the lower end of box body 111 is provided with first lower convolutional line 113, and the box bottom 112 is provided with second lower convolutional line 114, the first lower convolutional line 113 is coiled with the second lower convolutional line 114, and the box body 111 is fixedly connected with the box bottom 112, through the cooperation of the first lower convolutional line 113 and the second lower convolutional line 114, the box body 111 and the box bottom 112 can be fixedly connected without welding, saving the welding process, effectively improving the production efficiency of the welding-free packaging iron box 100 and reducing the production cost.

[0030] Please refer to Figure 1 and Figure 3 The upper end of the box body 111 is provided with a clamping winding 115. The outer wall of the inner box body 12 is provided with a clamping block 121, and the upper end of the clamping block 121 abuts against the lower end of the clamping winding 115. The end face of the clamping block 121 away from the clamping winding 115 is provided with a pushing inclined surface 122, so that the inner box body 12 can be quickly clamped into the outer box body 11 through the pushing inclined surface 122. The lower end of the inner box body 12 is provided with a lower abutting winding 123, and the lower abutting winding 123 abuts against the box bottom 112. The upper end of the inner box body 12 is provided with an upper abutting winding 124.

[0031] Please refer to Figure 1 and Figure 4 The cover 20 includes a cover body 21 and a cover plate 22. The cover body 21 is provided with a first upper folding winding 211, and the cover plate 22 is provided with a second upper folding winding 224. The first upper folding winding 211 is folded with the second upper folding winding 224. The cover body 21 and the cover plate 22 are fixedly connected. Through cooperation of the first upper folding winding 211 and the second upper folding winding 224, the cover body 21 and the cover plate 22 can be fixedly connected without welding, thereby saving the welding process, effectively improving the production efficiency of the non-welding packaging iron box 100, and reducing the production cost.

[0032] Please refer to Figure 1 and Figure 4 The cover plate 22 includes a main plate part 221, an abutting part 222, and an arc-shaped transition part 223. The main plate part 221 is provided with a relief pattern. The main plate part 221 abuts against the abutting part 222 through the arc-shaped transition part 223, and the second upper folding winding 224 is arranged at the end of the abutting part 222 away from the arc-shaped transition part 223. The upper abutting winding 124 abuts against the abutting part 222, thereby effectively improving the sealing performance of the non-welding packaging iron box 100. Please refer to Figure 2 The end of the cover body 21 away from the first upper folding winding 211 is provided with a clamping winding 212, and the clamping winding 212 abuts against the outer wall of the inner box body 12, thereby tightly connecting the bottom box 10 and the cover 20.

[0033] The utility model discloses beneficial effect is: through the cooperation of the clamping block 121 and the clamping winding 115 can realize the connection and the location between the outer box body 11 and the inner box body 12, need not welding, can effectively avoid the phenomenon of defective product because of the welding positioning error, reduce unnecessary resource waste, reduce production cost, can also effectively improve the rate of good product simultaneously, through the push and shove inclined plane 122 can make the inner box body 12 can be quickly clamped into the outer box body 11, improve the assembly efficiency, through the cooperation of the first lower roll -up roll -up winding 113 and the second lower roll -up roll -up winding 114, the box body 111 and the box bottom 112 need not welding can be fixedly connected, save the welding procedure, effectively improve the production efficiency of no welding packaging iron box 100, reduce production cost.

[0034] The technical features of the above-described embodiments can be combined in any manner. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described, but as long as the combinations of the technical features do not contradict, they should be considered within the scope of the present disclosure.

[0035] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the present application. It should be noted that for those skilled in the art, without departing from the concept of the present application, some modifications and improvements can be made, which are all within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A solderless packaging iron case, characterized by, The utility model provides a box, including bottom box and box cover, the box cover covers on bottom box, bottom box includes outer box body and inner box body, inner box body is installed in outer box body, the inside of outer box body is provided with the jointing winding, the outer wall of inner box body is provided with the jointing block, the upper end of jointing block and the lower end of jointing winding abut, and inner box body and outer box body are fixedly connected.

2. The solderless iron packaging box according to claim 1, characterized in that, The outer box body includes box body and box bottom, the jointing winding is located at the upper end of the box body, the lower end of the box body is provided with a first lower coiled winding, the box bottom is provided with a second lower coiled winding, the first lower coiled winding is coiled with the second lower coiled winding, and the box body is fixedly connected with the box bottom.

3. The solderless iron packaging box according to claim 2, characterized in that, The lower end of the inner box body is provided with a lower abutting winding, and the lower abutting winding abuts with the box bottom.

4. The solderless iron packaging box according to claim 3, characterized in that, The box cover includes a cover body and a cover plate, the cover body is provided with a first upper coiled winding, the cover plate is provided with a second upper coiled winding, the first upper coiled winding is coiled with the second upper coiled winding, and the cover body is fixedly connected with the cover plate.

5. The solderless iron packaging box according to claim 4, characterized in that, The cover plate includes a main plate portion, an abutting portion, and an arc-shaped transition portion, the main plate portion abuts with the abutting portion through the arc-shaped transition portion, and the second upper coiled winding is located at an end portion of the abutting portion away from the arc-shaped transition portion.

6. The solderless iron packaging box according to claim 5, characterized in that, The upper end of the inner box body is provided with an upper abutting winding, and the upper abutting winding abuts with the abutting portion.

7. The solderless iron packaging box according to claim 4, characterized in that, An end portion of the cover body away from the first upper coiled winding is provided with a clamping winding, and the clamping winding abuts with the outer wall of the inner box body.

8. The solderless iron packaging box according to claim 5, characterized in that, The main plate portion is provided with a relief pattern.