A pressure-proof packaging box

Abstract

The utility model discloses a kind of anti-pressure packaging boxes, it relates to packaging box technical field, including shell, the outer wall of one end of shell is movably connected with telescopic link, the inside of shell is movably connected with box, the sliding fit between box and the movable groove in shell, the outer wall of the both sides of shell is evenly provided with a plurality of rubber strips, the top surface and bottom surface outer wall of shell are elastically connected with annular strip, annular strip is elastically connected between shell. By setting elastic membrane, chamber, connecting groove and movable cavity between shell and box and the like structure, when box is shaken by external force, gas in chamber can enter movable cavity through connecting groove, utilize the flow and compression of gas to disperse and absorb external force, effectively reduce the impact force that box bears, to improve the anti-pressure capacity of packaging box.

Description

Technical Field

[0001] This utility model relates to the field of packaging box technology, specifically a pressure-resistant packaging box. Background Technology

[0002] Packaging boxes must withstand top stacking pressure, lateral squeezing forces, and impacts during loading and unloading, especially for delicate electronic instruments and fragile items. Pressure protection directly determines the integrity of the goods. Existing packaging boxes have core defects: most use single corrugated cardboard or ordinary plastic materials, only increasing the box's thickness to improve pressure resistance, leading to increased weight and cost. Furthermore, the pressure-resistant structure is concentrated on the side walls, making the top, bottom, and corners prone to deformation and collapse due to excessive localized stress. Internal cushioning is mostly fixed foam blocks, which cannot adapt to items of different sizes and have limited cushioning range; external forces exceeding the foam's bearing capacity can still damage the internal items. In addition, there is no positioning structure during stacking, making it easy for misalignment to occur, leading to concentrated pressure and further increasing the risk of box deformation. Ultimately, this results in a high rate of item breakage and low box reusability. To address these issues, a pressure-resistant packaging box is proposed. Utility Model Content

[0003] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a pressure-resistant packaging box, including a shell, a telescopic rod movably connected to the outer wall of one end of the shell, a box body movably connected inside the shell, the box body slidingly engaging with a movable groove opened in the shell, a plurality of rubber strips evenly arranged on the outer walls of both sides of the shell, and annular strips elastically connected to the outer walls of the top and bottom surfaces of the shell, the annular strips being elastically connected to the shell.

[0004] Preferably, a sliding groove is provided on the inner wall of the movable groove, a slider is fixedly installed on the bottom inner wall of the box, the slider is elastically connected to the sliding groove, a handle is fixedly installed on the side wall of the box, and a placement cavity is provided on the top surface of the box for holding items.

[0005] Preferably, elastic membranes are provided on the inner walls of both sides of the movable groove, and a cavity is provided between the elastic membrane and the inner wall of the movable groove. The cavity is kept in communication through a connecting groove opened in the housing, and the outer wall of the elastic membrane is kept in contact with the outer wall of the housing.

[0006] Preferably, the housing has an annular groove, the annular strip is movably connected to the annular groove, and multiple columns are linearly and equally spaced on the outer wall of the annular strip, the columns and the annular strip are all made of rubber.

[0007] Preferably, a diaphragm is provided in the middle of the annular strip, and a movable cavity is provided between the diaphragm and the outer wall of the shell. The movable cavity is in communication with the connecting groove. When the box shakes in the movable groove, the gas in the cavity will enter the interior of the movable cavity through the connecting groove.

[0008] Preferably, the connecting groove has openings on both the upper and lower sides, and the connecting groove is in communication with the movable cavities located on the upper and lower sides of the housing, respectively.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention incorporates an elastic membrane, chambers, connecting grooves, and movable cavities between the shell and the box. When the box is subjected to external force, gas within the chambers can enter the movable cavities through the connecting grooves. The flow and compression of the gas disperse and absorb the external force, effectively reducing the impact on the box and thus improving its pressure resistance. Simultaneously, rubber strips on both sides of the shell and elastically connected annular strips on the top and bottom outer walls further enhance the overall compression and impact resistance of the box. In particular, the column design on the annular strips provides positioning and cushioning when the boxes are stacked, preventing damage to the contents. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the overall structure of the packaging box of this utility model; Figure 2 This is a schematic diagram of the structure of the present invention when the box body and shell are separated; Figure 3 This is a schematic diagram of the structure of the annular strip of this utility model when it is separated from the shell; Figure 4 This is a schematic diagram of the overall cross-sectional structure of the packaging box of this utility model.

[0012] In the diagram: 1. Shell; 11. Telescopic rod; 12. Movable groove; 13. Sliding groove; 14. Elastic membrane; 15. Chamber; 16. Rubber strip; 17. Annular groove; 18. Connecting groove; 2. Box body; 21. Handle; 22. Placement cavity; 3. Annular strip; 31. Column; 32. Dysfunction diaphragm; 33. Movable cavity. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Example: Figures 1-4 As shown, this utility model provides a pressure-resistant packaging box, including a shell 1. A telescopic rod 11 is movably connected to the outer wall of one end of the shell 1. A box body 2 is movably connected inside the shell 1. The box body 2 is slidably engaged with a movable groove 12 opened inside the shell 1. Multiple rubber strips 16 are evenly arranged on the outer walls of both sides of the shell 1. Ring strips 3 are elastically connected to the outer walls of the top and bottom surfaces of the shell 1, and the ring strips 3 are elastically connected to the shell 1. When it is necessary to package and transport items, the items are placed in the placement cavity 22 on the top surface of the box body 2. Due to the design of the placement cavity 22, the items can be placed relatively stably. During transportation, if bumps or other situations occur, the box body 2 will shake within the movable groove 12. At this time, the slider on the inner wall of the bottom surface of the box body 2 is elastically connected to the sliding groove 13 on the inner wall of the movable groove 12, which plays a certain buffering role, limits the shaking amplitude of the box body 2, and prevents the items from being damaged due to violent shaking.

[0015] In one embodiment, in this application, a sliding groove 13 is provided on the inner wall of the movable groove 12, and a slider is fixedly installed on the bottom inner wall of the box 2. The slider is elastically connected to the sliding groove 13. A handle 21 is fixedly installed on the side wall of the box 2, and a placement cavity 22 is provided on the top surface of the box 2. The placement cavity 22 is used to hold items. Through the sliding connection between the box 2 and the shell 1, during the handling process, the operator can move the box 2 more conveniently by holding the handle 21, which improves the ease of operation. At the same time, the elastic membrane 14 provided on both sides of the inner wall of the movable groove 12 forms a cavity 15 with the inner wall of the movable groove 12, which is kept in communication with the connecting groove 18. When the box 2 shakes and squeezes the elastic membrane 14, the gas in the cavity 15 is pressurized. Since the connecting groove 18 has openings on both the upper and lower sides and is in communication with the movable cavities 33 located on the upper and lower sides of the shell 1, the gas will enter the movable cavity 33 through the connecting groove 18. The movable cavity 33 between the diaphragm 32 in the middle of the annular strip 3 and the outer wall of the shell 1 expands after gas enters, further playing a buffering role, effectively dispersing the external force on the box 2, and reducing the risk of damage to the items.

[0016] Furthermore, in this application, elastic membranes 14 are provided on the inner walls of both sides of the movable groove 12. A chamber 15 is provided between the elastic membrane 14 and the inner wall of the movable groove 12. The chamber 15 is kept in communication with the connecting groove 18 opened in the housing 1. The outer wall of the elastic membrane 14 is in contact with the outer wall of the housing 2. At the same time, the elastic membranes 14 on the inner walls of both sides of the movable groove 12 also play a role. When the housing 2 shakes and squeezes the elastic membrane 14, the gas in the chamber 15 formed between the elastic membrane 14 and the inner wall of the movable groove 12 will be compressed, and the gas will flow through the connecting groove 18 in the housing 1. Because the connecting groove 18 has openings on both the upper and lower sides, and is in communication with the movable chambers 33 located on the upper and lower sides of the housing 1 respectively, the gas can enter the movable chamber 33 between the diaphragm 32 in the middle of the annular strip 3 and the outer wall of the housing 1, which further plays a role in buffering and dispersing pressure, preventing excessive local pressure from damaging the items.

[0017] Furthermore, in this application, the shell 1 has an annular groove 17, and the annular strip 3 is movably connected to the annular groove 17. Multiple columns 31 are linearly and equally spaced on the outer wall of the annular strip 3, and both the columns 31 and the annular strip 3 are made of rubber. Multiple rubber strips 16 are evenly arranged on the outer walls of both sides of the shell 1. When the packaging box is subjected to lateral pressure, the rubber strips 16 can elastically deform, absorbing some of the external force and enhancing the packaging box's pressure resistance. The annular strips 3 elastically connected to the outer walls of the top and bottom surfaces of the shell 1, with multiple columns 31 linearly and equally spaced on their outer walls, and both the columns 31 and the annular strips 3 being made of rubber, can disperse pressure through elastic deformation when the top or bottom of the packaging box is subjected to pressure, protecting the internal contents.

[0018] Furthermore, in this application, a diaphragm 32 is provided in the middle of the annular strip 3. A movable cavity 33 is provided between the diaphragm 32 and the outer wall of the shell 1. The movable cavity 33 is in communication with the connecting groove 18. When the box 2 shakes in the movable groove 12, the gas in the chamber 15 will enter the interior of the movable cavity 33 through the connecting groove 18. Openings are provided on both the upper and lower sides of the connecting groove 18, and the connecting groove 18 is in communication with the movable cavities 33 located on the upper and lower sides of the shell 1, respectively. Through the movable cavity 33, when the gas enters the movable cavity 33 from the chamber 15 through the connecting groove 18, the movable cavity 33 will expand and deform, further absorbing and dispersing the energy generated by the shaking of the box. Moreover, this gas flow and the deformation of the movable cavity are dynamic, and can automatically adjust the buffering effect according to the shaking of different intensities and directions, providing more reliable protection for the internal items.

[0019] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A pressure-resistant packaging box, characterized in that, include: The shell (1) has a telescopic rod (11) movably connected to one end of its outer wall. The shell (1) has a box (2) movably connected inside it. The box (2) slides into the movable groove (12) inside the shell (1). Multiple rubber strips (16) are evenly arranged on both sides of the outer wall of the shell (1). The top and bottom outer walls of the shell (1) are elastically connected to annular strips (3). The annular strips (3) are elastically connected to the shell (1).

2. The pressure-resistant packaging box as described in claim 1, characterized in that, The inner wall of the movable groove (12) is provided with a sliding groove (13), and a slider is fixedly installed on the inner wall of the bottom surface of the box (2). The slider is elastically connected to the sliding groove (13). A handle (21) is fixedly installed on the side wall of the box (2). A placement cavity (22) is provided on the top surface of the box (2). The placement cavity (22) is used to hold items.

3. A pressure-resistant packaging box as described in claim 2, characterized in that, An elastic membrane (14) is provided on the inner walls of both sides of the movable groove (12). A chamber (15) is provided between the elastic membrane (14) and the inner wall of the movable groove (12). The chamber (15) is connected through a connecting groove (18) opened in the shell (1). The outer wall of the elastic membrane (14) is connected to the outer wall of the box (2).

4. A pressure-resistant packaging box as described in claim 3, characterized in that, The housing (1) has an annular groove (17), and the annular strip (3) is movably connected to the annular groove (17). Multiple columns (31) are arranged linearly and at equal intervals on the outer wall of the annular strip (3). Both the columns (31) and the annular strip (3) are made of rubber.

5. A pressure-resistant packaging box as described in claim 4, characterized in that, A diaphragm (32) is provided in the middle of the annular strip (3). A movable cavity (33) is provided between the diaphragm (32) and the outer wall of the shell (1). The movable cavity (33) is connected to the connecting groove (18). When the box (2) shakes in the movable groove (12), the gas in the chamber (15) will enter the interior of the movable cavity (33) through the connecting groove (18).

6. A pressure-resistant packaging box as described in claim 5, characterized in that, The connecting groove (18) has openings on both the upper and lower sides, and the connecting groove (18) is connected to the movable cavity (33) located on the upper and lower sides of the housing (1), respectively.

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