Packaging box capable of achieving height adjustment

Abstract

The utility model relates to the technical field of packaging boxes, and discloses a packaging box capable of realizing height adjustment, which comprises a lower box body with an upward opening and an upper box body with a downward opening, the upper box body is inserted in the lower box body in a matching way, connecting rods are arranged on the left side wall and the right side wall above the upper box body, a connecting plate is rotatably sleeved on the connecting rods, and the upper side wall of the upper box body is connected with the lower box body. Grooves matched with the connecting plates are formed in the left side wall and the right side wall of the lower box body, the upper ends of the grooves extend out of the lower box body, through holes are formed in the side walls, facing the center of the lower box body, of the lower ends of the connecting plates, a plurality of blind holes are evenly formed in the inner walls of the bottoms of the grooves in the vertical direction, and limiting rods matched with the blind holes are inserted into the through holes. Compared with the prior art, the height-adjustable packaging box has the advantages of being adjustable in height and high in packaging strength.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging boxes, in particular to a packaging box capable of achieving height adjustment. Background Art

[0002] Packaging boxes are boxes used to package products and can be classified by materials, such as paper boxes, iron boxes, wooden boxes, cloth boxes, leather boxes, acrylic boxes, corrugated boxes, PVC boxes, etc.

[0003] When producing packaging boxes, the outer packaging must be made according to the product's length, width, and height. The size and volume of the produced boxes are fixed and cannot be adjusted. Currently, segmented structures, such as those connected by flexible materials such as paper, cloth, and leather, are often used on the market to adjust the height of the packaging box. However, since the flexible materials used in the connection parts are weak, the packaging is easily deformed, has a short service life, and wastes resources. Utility Model Content

[0004] 1. Technical Problems Solved

[0005] The technical problems to be solved by the utility model are that the height is inconvenient to adjust and fix, the packaging strength is low, and the service life is short.

[0006] 2. Technical Solution

[0007] In order to solve the above technical problems, the technical solution provided by the present invention is as follows: a packaging box capable of achieving height adjustment, comprising a lower box body with an upward opening and an upper box body with a downward opening, wherein the upper box body is inserted into the lower box body.

[0008] The left and right side walls above the upper box body are provided with connecting rods, and a connecting plate is rotatably sleeved on the connecting rods. The left and right side walls of the lower box body are provided with grooves that cooperate with the connecting plates. The upper end of the groove extends out of the lower box body, and the lower end of the connecting plate is provided with a through hole on the side wall facing the center of the lower box body. The inner wall of the bottom of the groove is evenly provided with multiple blind holes in the vertical direction, and a limiting rod that cooperates with the blind hole is inserted into the through hole.

[0009] As an improvement, the left and right inner walls of the lower box body are provided with a plurality of vertical ridges, and the left and right side walls of the upper box body are provided with a plurality of notches respectively cooperating with the ridges.

[0010] As an improvement, the height of the upper box body is greater than that of the lower box body, and the length of the notch is equal to the length of the convex strip.

[0011] As an improvement, the connecting rod includes rod one, rod two and rod three connected in sequence, the diameter of rod two is smaller than the diameters of rod one and rod three, the connecting plate is sleeved on the outside of rod two and is in contact with the inner wall of the bottom of the groove, and the connecting plate is made of a bendable plastic sheet material.

[0012] As an improvement, the diameter of the blind hole is larger than the diameter of the through hole, and the end of the limiting rod inserted into the blind hole is made of rubber material and has an interference fit with the blind hole.

[0013] As an improvement, the inner corner of the lower end of the upper box body is a convex curved structure.

[0014] As an improvement, the side of the connecting rod and the limiting rod away from the center of the lower box body is located in the same vertical plane as the adjacent side wall of the lower box body.

[0015] 3. Beneficial Effects

[0016] The advantages of this utility model compared with the prior art are:

[0017] 1. The upper box body is inserted into the lower box body, so that the height between the upper box body and the lower box body can be adjusted, and the structure between the two is stable after connection, and the packaging strength is high;

[0018] 2. The height between the upper box body and the lower box body is fixed by inserting a limiting rod into the through hole of the connecting plate and the corresponding blind hole on the lower box body, so that the height between the upper box body and the lower box body is adjustable and easy to fix. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural schematic diagram of a packaging box capable of achieving height adjustment in the present utility model.

[0020] Figure 2 This is a schematic structural diagram of an exploded state of a packaging box capable of achieving height adjustment in the utility model.

[0021] Figure 3 This is a schematic diagram of the explosion state structure of a packaging box that can achieve height adjustment in this utility model. Figure 2 .

[0022] Figure 4 It is a structural schematic diagram of a longitudinal section of a packaging box capable of achieving height adjustment in the present utility model.

[0023] As shown in the figure: 1. Lower box body; 2. Upper box body; 3. Connecting rod; 4. Connecting plate; 5. Groove; 6. Through hole; 7. Blind hole; 8. Limiting rod; 9. Raised strip; 10. Notch. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] Example 1

[0026] As attached Figure 1 and attached Figure 2 As shown, a packaging box capable of achieving height adjustment comprises a lower box body 1 with an opening facing upward and an upper box body 2 with an opening facing downward, the upper box body 2 being fitted and inserted into the lower box body 1, connecting rods 3 are provided on the left and right side walls above the upper box body 2, a connecting plate 4 is rotatably sleeved on the connecting rod 3, the left and right side walls of the lower box body 1 are provided with grooves 5 which cooperate with the connecting plate 4, the upper end of the groove 5 extends out of the lower box body 1, the lower end of the connecting plate 4 is provided with a through hole 6 on the side wall facing the center of the lower box body 1, a plurality of blind holes 7 are evenly arranged on the inner wall of the bottom of the groove 5 in the vertical direction, a limiting rod 8 which cooperates with the blind hole 7 is inserted into the through hole 6.

[0027] Through the above structure, the upper box body 2 is inserted into the lower box body 1, and the height between the upper box body 2 and the lower box body 1 can be adjusted. The height between the upper box body 2 and the lower box body 1 is fixed as required, and then the limiting rod 8 is inserted into the through hole 6 on the connecting plate 4 and the blind hole 7 on the lower box body 1 corresponding to the through hole 6 to fix them. In this way, the height between the upper box body 2 and the lower box body 1 is adjustable and easy to fix. After the two are connected, the structure is stable and the packaging strength is high.

[0028] Example 2

[0029] Based on the first embodiment, please refer to the attached Figure 3 and attached Figure 4

[0030] The left and right inner walls of the lower box body 1 are provided with multiple vertical ridges 9, and the left and right side walls of the upper box body 2 are provided with multiple notches 10 respectively cooperating with the ridges 9; the height of the upper box body 2 is greater than the height of the lower box body 1, and the length of the notches 10 is equal to the length of the ridges 9.

[0031] Through the above structure, when the lower box body 1 and the upper box body 2 are plugged together, the notch 10 cooperates with the ridge 9 to achieve positioning, and the upper box body 2 moves vertically up and down.

[0032] The connecting rod 3 includes rod one, rod two and rod three connected in sequence. The diameter of rod two is smaller than that of rod one and rod three. The connecting plate 4 is sleeved on the outside of rod two and is in contact with the inner wall of the bottom of the groove 5. The connecting plate 4 is made of a bendable plastic sheet material; the side of the connecting rod 3 and the limiting rod 8 away from the center of the lower box body 1 is located in the same vertical plane as the adjacent side wall of the lower box body 1.

[0033] Through the above structure, the connecting plate 4 is inserted into the groove 5 and is attached to the bottom of the groove 5. The limiting rod 8 is inserted between the through hole 6 on the connecting plate 4 and the corresponding blind hole 7 on the lower box body 1 for fixation. The connecting rod 3 and the limiting rod 8 are both located inside the side wall of the lower box body 1 to avoid protrusion outward.

[0034] The diameter of the blind hole 7 is larger than that of the through hole 6 . The end of the limiting rod 8 inserted into the blind hole 7 is made of rubber and has an interference fit with the blind hole 7 .

[0035] Through the above structure, the inserted limiting rod 8 will not be pulled out without being subjected to external force, thereby preventing the upper box body 2 from being separated from the lower box body 1.

[0036] The inner corner of the lower end of the upper box body 2 is a convex curved structure.

[0037] With the above structure, the inner wall corners will not scratch the items in the lower box body 1 when inserted into the lower box body 1.

[0038] The specific method of use is as follows: insert the upper box body 2 into the lower box body 1, and the height between the upper box body 2 and the lower box body 1 can be adjusted. The height between the upper box body 2 and the lower box body 1 is fixed as needed, and then the limiting rod 8 is inserted into the through hole 6 on the connecting plate 4 and the blind hole 7 on the lower box body 1 corresponding to the through hole 6 to fix them. The height between the upper box body 2 and the lower box body 1 is adjustable and easy to fix. After the two are connected, the structure is stable and the packaging strength is high.

[0039] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

[0041] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. A packaging box capable of achieving height adjustment, comprising a lower box body (1) with an opening facing upward and an upper box body (2) with an opening facing downward, wherein the upper box body (2) is inserted into the lower box body (1), and is characterized in that: The upper left and right side walls of the upper box body (2) are provided with connecting rods (3), and a connecting plate (4) is rotatably sleeved on the connecting rods (3). The left and right side walls of the lower box body (1) are provided with grooves (5) that cooperate with the connecting plate (4). The upper end of the groove (5) extends out of the lower box body (1), and the lower end of the connecting plate (4) is provided with a through hole (6) on the side wall facing the center of the lower box body (1). The inner wall of the bottom of the groove (5) is evenly provided with a plurality of blind holes (7) in the vertical direction, and a limiting rod (8) that cooperates with the blind hole (7) is inserted into the through hole (6).

2. The height-adjustable packaging box according to claim 1, characterized in that: The left and right inner walls of the lower box body (1) are provided with a plurality of vertical ridges (9), and the left and right side walls of the upper box body (2) are provided with a plurality of notches (10) respectively matched with the ridges (9).

3. The height-adjustable packaging box according to claim 2, characterized in that: The height of the upper box body (2) is greater than the height of the lower box body (1), and the length of the notch (10) is equal to the length of the convex strip (9).

4. The height-adjustable packaging box according to claim 1, characterized in that: The connecting rod (3) comprises a rod 1, a rod 2 and a rod 3 connected in sequence, the diameter of the rod 2 is smaller than the diameters of the rod 1 and the rod 3, the connecting plate (4) is sleeved on the outside of the rod 2 and abuts against the inner wall of the bottom of the groove (5), and the connecting plate (4) is made of a bendable plastic sheet material.

5. The height-adjustable packaging box according to claim 1, characterized in that: The diameter of the blind hole (7) is larger than the diameter of the through hole (6); one end of the limiting rod (8) inserted into the blind hole (7) is made of rubber material and has an interference fit with the blind hole (7).

6. The height-adjustable packaging box according to claim 1, characterized in that: The inner corner of the lower end of the upper box body (2) is a convex curved structure.

7. The height-adjustable packaging box according to claim 1, characterized in that: The side of the connecting rod (3) and the limiting rod (8) away from the center of the lower box body (1) is located in the same vertical plane as the adjacent side wall of the lower box body (1).

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