A cardboard box with anti-squeezing function

Abstract

The present invention provides a cardboard box with an anti-squeezing function, which relates to the field of packaging cartons and comprises: a bottom frame structure, wherein the bottom frame structure is plugged and installed on a bearing structure, a supporting mechanism is adhered to the bearing structure, an outer supporting rod is installed outside the supporting mechanism, an outer protective plate is arranged close to the outer end of the supporting mechanism, the outer protective plate is plugged and installed on the bottom frame structure, an outer supporting rod is added at a corner of the outer protective plate, an inner box component can be placed inside the supporting mechanism, a reinforcing component is connected at a connecting corner of the overall bottom frame structure of the device, and a draw rope can be connected to the outer wall of the reinforcing component, so that the overall device can be clamped and reinforced by the reinforcing component, so as to avoid the outer supporting rod and the bottom frame structure from being skewed, and solve the problems that after the existing carton is squeezed, the outer side is easily deformed and it is difficult to withstand multiple squeezing, and the single-layer carton after squeezing cannot better protect the goods inside.

Description

Technical Field

[0001] The invention relates to the technical field of packaging cartons, and in particular to a paperboard box with an anti-squeezing function. Background Art

[0002] With the continuous development and progress of the economy and society, the transportation construction between cities is also gradually increasing, such as shipping, airplanes and high-speed railways, which has increased the transportation volume of some goods. Some simple goods only need to be packed in cartons to be transported. The packaging of goods in cartons is an important protective part of the transportation of goods.

[0003] When the goods are packed in cartons and transported, some unexpected situations are inevitable, such as:

[0004] 1. The transport equipment brakes suddenly, causing collision and squeezing between adjacent cartons, resulting in damage to the goods in the cartons;

[0005] 2. If the carton is torn after the collision, it is difficult to protect the goods inside the single-layer carton;

[0006] 3. After the cartons are squeezed against each other, the connection positions of the four corners of the cartons are prone to become skewed, causing the connection positions of the cartons to be loose, making it difficult for the cartons to withstand multiple squeezing and collisions. Summary of the invention

[0007] In view of this, the present invention provides a cardboard box with an anti-squeezing function, which has an outer corner reinforcement mechanism. First, the bottom frame structure is plugged and installed on the load-bearing structure. While increasing the strength of the load-bearing structure, the load-bearing capacity of the bottom frame structure and the load-bearing structure can be increased. A supporting mechanism is placed on the load-bearing structure, and an outer protective plate is arranged close to the outer end of the supporting mechanism. The outer protective plate is plugged and installed on the bottom frame structure. An outer support rod is added at the corner of the outer protective plate. Inner box components can be placed inside the supporting mechanism. A reinforcement component is connected to the connecting corner of the overall bottom frame structure of the device. The outer wall of the reinforcement component can be connected to a draw rope, so that the overall device can be clamped and reinforced by the reinforcement component, thereby avoiding the outer support rod from being skewed in connection with the bottom frame structure.

[0008] The present invention provides a purpose and efficacy of a cardboard box with an anti-squeezing function, specifically comprising: a bottom frame structure, wherein the bottom frame structure is plugged and installed on a bearing structure, a supporting mechanism is adhered to the bearing structure, an outer supporting rod is installed outside the supporting mechanism, and an outer protective plate is wrapped outside the contact positions at both ends of the outer supporting rod, the outer supporting rod and the outer protective plate are both plugged and installed at the edge of the bottom frame structure, the bottom frame structure is installed on the top of the outer supporting rod and the outer protective plate, a top plate structure is fixed to the upper bottom frame structure, a reinforcing component is fixed at the corner position of the bottom frame structure, an inner box component is carried inside the supporting mechanism, a spacing component is arranged inside the inner box component, the bearing box of the inner box component is a box structure, the bearing box is placed at the inner end of the supporting mechanism, a vertical positioning plate is arranged on the inner wall of the bearing box, each set of positioning plates is arranged with a vertical groove, the spacing plate is plugged and installed in the vertical groove of the positioning plate, and the spacing plates are a mutually staggered structure.

[0009] Furthermore, the cross section of the outer frame of the bottom frame structure is an "L"-shaped structure, the outer frame has the same cross section as the outer support rod, and a reinforcement rod is fixed at the corner position of the inner wall of the outer frame, and the reinforcement rod is a long strip structure.

[0010] Furthermore, a plug-in board is fixed at the inner end of the reinforcement rod, and there are four groups of plug-in boards in total. The outer frame is inserted into the bearing structure through the plug-in boards on the reinforcement rod. One-way sheets are arranged on both side walls of each group of plug-in boards in an inclined manner.

[0011] Furthermore, the bearing plate of the bearing structure is made of solid paperboard with a thickness greater than two millimeters. The bearing plate is arranged in two layers, and a spacing layer is installed between the two layers of bearing plates. The spacing layer has a honeycomb structure.

[0012] Furthermore, the connecting plate of the supporting mechanism is fixed on the upper end surface of the bearing structure, and supporting plates are installed on both sides of the top surface of the connecting plate. Card slot frames are provided at the upper and lower ends of the supporting plate, and the inner end position of the card slot frame is set as an inclined structure. Two groups of card blocks are provided at both ends of the connecting plate, and the support plate is installed on the card block through the card slot frame.

[0013] Furthermore, the top cover plate of the top plate structure is a rectangular plate structure, which is fixed between the top bottom frame structure, a connecting plate facing the lower end is fixed to the bottom of the top cover plate, and positioning columns facing the lower end are arranged at four groups of corner positions of the top cover plate.

[0014] Furthermore, the reinforcement corner of the reinforcement component is a triangular structure, and the reinforcement corner is set to three sides. The three reinforcement corners are welded and fixed to each other. A groove opening is set on the reinforcement corner wall, and a triangular bevel tooth block is set at the inner end of the groove opening. The reinforcement corner is clamped and installed at the diamond corner position of the bottom frame structure.

[0015] Furthermore, two groups of connection buckles are arranged on the outer wall of the reinforcement corner, and each group of connection buckles is perpendicular to the outer edge of the reinforcement corner adjacent to it.

[0016] Beneficial Effects

[0017] The cross-sections of the outer frame and the outer support rod are set to the same structure, so that the outer support rod and the outer frame have the same effect of protecting the corners of the box. Because the outer frame will bear a certain pressure, reinforcement rods are installed at the corners of the inner wall of the outer frame to increase the overall bearing strength of the outer frame and allow the outer frame to better carry items. The outer frame is inserted into the bearing structure through the plug-in boards on the reinforcement rods. The plug-in boards are set to a four-group structure, so that the four groups of plug-in boards play a more stable role when connected to the bearing structure. One-way sheets are set on the side walls of the plug-in boards. The one-way sheets are set to be arranged in an inclined shape, which can further increase the connection strength between the bearing structure and the bottom frame structure after the plug-in boards are inserted into the bearing structure.

[0018] The inner end position of the card slot frame is set as an inclined plane, so that when the support plate is installed on the connecting plate through the card slot frame, the auxiliary supporting effect of the card slot frame on the support plate is further increased, so that the support plate can be kept vertical on the connecting plate, thereby ensuring the overall tensile resistance of the support mechanism. The support mechanism is reinforced by the card slot frame and the card block, so that when the support mechanism as a whole is squeezed, the supporting effect on the inside of the carton is increased, thereby ensuring the stability of the shape of the carton.

[0019] The overall top of the box is composed of a connecting plate, a bottom frame structure and a top plate structure. The bottom frame structure is used to fix the top cover plate, and the connecting plate at the bottom of the top cover plate can be stably engaged with the vertical support plate to achieve mutual fixing. The positioning columns on the top cover plate help the connecting plate and the support plate to engage, and the positioning columns on the outer end will first contact the box, thereby assisting its positioning.

[0020] The reinforcement corner is set to a triangular structure, and three sets of reinforcement corner surfaces are fixed by welding. This makes the reinforcement corner more stable after being fixed in the specified position. The triangular reinforcement corner is set to be clamped and fixed at the diamond-cornered position of the bottom frame structure, so that the oblique tooth block of the reinforcement corner can assist in connecting the bottom frame structure, and increase the tensile and anti-extrusion effect of the corner position of the bottom frame structure. After the reinforcement components are clamped on the bottom frame structure, the reinforcement components in the upper and lower symmetrical positions can be connected to the draw rope through the connecting buckle on the outer wall of the reinforcement corner, so that after the bottom frame structure is squeezed, the reinforcement components fixed by the draw rope can help ensure that the overall shape of the box remains unchanged, thereby achieving a compression-resistant effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0022] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0023] In the attached picture:

[0024] Figure 1 It is a schematic diagram of the overall right front axial structure of an embodiment of the present invention.

[0025] Figure 2 It is a schematic diagram of the overall decomposition structure of an embodiment of the present invention.

[0026] Figure 3 It is a schematic structural diagram of the inner box components of an embodiment of the present invention.

[0027] Figure 4 Schematic diagram of the structure of the spacing component of an embodiment of the present invention.

[0028] Figure 5 It is a structural schematic diagram of the top plate structure of an embodiment of the present invention.

[0029] Figure 6 It is a schematic diagram of the support mechanism structure of an embodiment of the present invention.

[0030] Figure 7 It is a schematic diagram of the bottom frame structure of an embodiment of the present invention.

[0031] Figure 8 It is a schematic diagram of the structure of the reinforcement component of an embodiment of the present invention.

[0032] Fig. 9 The embodiment of the present invention Figure 1 A is an enlarged structural diagram of FIG.

[0033] Fig.10 The embodiment of the present invention Figure 6 Schematic diagram of the enlarged structure at B.

[0034] Reference numerals list

[0035] 1. Bottom frame structure; 101. Outer frame; 102. Reinforcement rod; 103. Plug-in board; 104. One-way sheet; 2. Load-bearing structure; 201. Load-bearing plate; 202. Spacer layer; 3. Support mechanism; 301. Support plate; 302. Connecting plate; 303. Block; 304. Card slot frame; 4. Top plate structure; 401. Top cover plate; 402. Positioning column; 5. Inner box component; 501. Load-bearing box; 6. Spacer component; 601. Positioning plate; 602. Spacer plate; 7. Reinforcement component; 701. Reinforcement angle; 702. Groove mouth; 703. Bevel tooth block; 704. Connecting buckle; 8. Outer support rod; 9. Outer protective plate. DETAILED DESCRIPTION

[0036] In order to make the purpose, scheme and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described in conjunction with the drawings of the specific embodiments of the present invention. Unless otherwise specified, the terms used herein have the usual meanings in the art. The same reference numerals in the drawings represent the same components.

[0037] Example: Please refer to Figures 1 to 10 As shown:

[0038] The present invention provides a cardboard box with an anti-squeezing function, comprising a bottom frame structure 1, the bottom frame structure 1 is plugged and installed on a bearing structure 2, a supporting mechanism 3 is adhered to the bearing structure 2, an outer supporting rod 8 is installed outside the supporting mechanism 3, and an outer protective plate 9 is wrapped outside the contact positions at both ends of the outer supporting rod 8, the outer supporting rod 8 and the outer protective plate 9 are plugged and installed at the edge of the bottom frame structure 1, the bottom frame structure 1 is installed on the top of the outer supporting rod 8 and the outer protective plate 9, the upper end of the bottom frame structure 1 is fixed with a top plate structure 4, a reinforcing component 7 is fixed at the corner position of the bottom frame structure 1, an inner box component 5 is carried inside the supporting mechanism 3, a spacing component 6 is arranged inside the inner box component 5, a carrying box 501 of the inner box component 5 is a box structure, the carrying box 501 is placed at the inner end of the supporting mechanism 3, and the carrying box 501 is arranged to be directly placed on the supporting mechanism 3 At the inner end, the carrying box 501 is increased to further protect the items. At the same time, the carrying box 501 is a structure that can be easily disassembled and replaced, so that the carrying box 501 can carry a variety of items of different sizes. A vertical positioning plate 601 is arranged on the inner wall of the carrying box 501, and each set of positioning plates 601 is provided with a vertical groove. The partition plate 602 is inserted and installed in the vertical groove of the positioning plate 601. The partition plate 602 is a staggered structure. In order to make the carrying box 501 more adaptable to a variety of item sizes, a positioning plate 601 is arranged on the inner wall of the carrying box 501. The positioning plate 601 with a vertical groove can be installed with the partition plate 602, so that the partition plate 602 divides the interior of the carrying box 501, and also allows the interior of the carrying box 501 to pass through the partition plate 602, thereby further increasing the bearing strength and preventing the overall device from being squeezed and deformed.

[0039] Among them, the cross-section of the outer frame 101 of the bottom frame structure 1 is an "L"-shaped structure, and the outer frame 101 has the same cross-section as the outer support rod 8. The cross-sections of the outer frame 101 and the outer support rod 8 are set to the same structure, so that the outer support rod 8 and the outer frame 101 have the same effect of protecting the corners of the box body. A reinforcement rod 102 is fixed at the corner position of the inner wall of the outer frame 101. The reinforcement rod 102 is a long strip structure. Because the outer frame 101 will bear a certain pressure, the reinforcement rod 102 is installed at the corner position of the inner wall of the outer frame 101, so that the reinforcement rod 102 can increase the overall load-bearing strength of the outer frame 101, so that the outer frame 101 can better carry items.

[0040] Among them, a plug board 103 is fixed on the inner end position of the reinforcement rod 102, and there are four groups of plug boards 103 in total. The outer frame 101 is inserted into the bearing structure 2 through the plug boards 103 on the reinforcement rod 102. Because the plug boards 103 are inserted into the bearing structure 2, the plug boards 103 are arranged in four groups, so that the four groups of plug boards 103 play a more stable role when connected to the bearing structure 2. One-way sheets 104 are arranged on both side walls of each group of plug boards 103, and the one-way sheets 104 are arranged in an inclined state. The one-way sheets 104 are arranged on the side walls of the plug boards 103, so that the one-way sheets 104 arranged in an inclined state can further increase the connection strength between the bearing structure 2 and the bottom frame structure 1 after the plug boards 103 are inserted into the bearing structure 2.

[0041] Among them, the bearing plate 201 of the bearing structure 2 adopts solid cardboard with a thickness greater than two millimeters. The bearing plate 201 is set to two layers in total. The two layers of bearing plates 201 are both set to solid cardboard of not less than two millimeters, so that the bearing plate 201 is more stable when connected with other components. A spacer layer 202 is installed between the two layers of bearing plates 201. The spacer layer 202 has a honeycomb structure. The honeycomb structure is installed between the two layers of bearing plates 201, so that the bearing structure 2 as a whole has a tensile effect in the horizontal direction, so as to better maintain the overall stability of the bearing structure 2.

[0042] The specific usage and function of this embodiment: the cross-section of the outer frame 101 and the outer support rod 8 is set to the same structure, so that the outer support rod 8 and the outer frame 101 have the same effect of protecting the corner of the box. Because the outer frame 101 will bear a certain pressure, the reinforcing rod 102 is installed at the corner position of the inner wall of the outer frame 101, so that the reinforcing rod 102 can increase the overall bearing strength of the outer frame 101, so that the outer frame 101 can better carry items. Because the plug-in board 103 is inserted into the bearing structure 2, The plug boards 103 are arranged as four groups of structures, so that the four groups of plug boards 103 play a more stable role when connected to the bearing structure 2. One-way sheets 104 are arranged on the side walls of the plug boards 103. The one-way sheets 104 arranged in an inclined shape can further increase the connection strength between the bearing structure 2 and the bottom frame structure 1 after the plug boards 103 are inserted into the bearing structure 2. The two layers of the bearing boards 201 are both set to solid cardboards of not less than two millimeters, so that the bearing boards 201 are more stable when connected to other components.

[0043] Embodiment 2:

[0044] Among them, the connecting plate 302 of the support mechanism 3 is fixed on the upper end surface of the bearing structure 2, and support plates 301 are installed on both sides of the top surface of the connecting plate 302. Slot frames 304 are set at the upper and lower ends of the support plate 301, and the inner end position of the slot frame 304 is set to an inclined structure. The inner end position of the slot frame 304 is set to an inclined surface, so that when the support plate 301 is installed on the connecting plate 302 through the slot frame 304, the auxiliary supporting effect of the slot frame 304 on the support plate 301 is further increased, so that the support plate 301 is kept vertical on the connecting plate 302, ensuring the overall tensile effect of the support mechanism 3, and two groups of clamping blocks 303 are set at both ends of the connecting plate 302. The support plate 301 is clamped and installed on the clamping blocks 303 through the slot frame 304. The support mechanism 3 is reinforced by the slot frame 304 and the clamping blocks 303, so that when the support mechanism 3 as a whole is squeezed, it increases the supporting effect on the inside of the carton to ensure the stability of the shape of the carton.

[0045] Among them, the top cover plate 401 of the top plate structure 4 is a rectangular plate structure, the top cover plate 401 is fixed between the top bottom frame structure 1, the bottom of the top cover plate 401 is fixed with a connecting plate 302 facing the lower end, and the four groups of corner positions of the top cover plate 401 are provided with positioning columns 402 facing the lower end. First, the top of the box body is composed of the connecting plate 302, the bottom frame structure 1 and the top plate structure 4. The bottom frame structure 1 is used to fix the top cover plate 401, and the connecting plate 302 at the bottom position of the top cover plate 401 can be stably engaged with the vertical support plate 301 to achieve mutual fixing, and the positioning columns 402 on the top cover plate 401 help to make the positioning columns 402 on the outer end contact the box body first when the connecting plate 302 is engaged with the support plate 301, thereby assisting its positioning.

[0046] The specific usage and function of this embodiment: the inner end position of the card slot frame 304 is set as an inclined structure, so that when the support plate 301 is installed on the connecting plate 302 through the card slot frame 304, the auxiliary support function of the card slot frame 304 on the support plate 301 is further increased, so that the support plate 301 remains vertical on the connecting plate 302, and the overall tensile resistance of the support mechanism 3 is ensured. The support mechanism 3 is reinforced by the card slot frame 304 and the card block 303, so that the support mechanism 3 as a whole can increase the internal tension of the carton when it is squeezed. The supporting effect ensures the stability of the shape of the carton. First, the top of the box body is composed of a connecting plate 302, a bottom frame structure 1 and a top plate structure 4. The bottom frame structure 1 is used to fix the top cover plate 401, and the connecting plate 302 at the bottom of the top cover plate 401 can be stably engaged with the vertical support plate 301 to achieve mutual fixing. The positioning column 402 on the top cover plate 401 helps when the connecting plate 302 is engaged with the support plate 301. The positioning column 402 at the outer end will first contact the box body, thereby assisting its positioning.

[0047] Embodiment three:

[0048] Among them, the reinforcement angle 701 of the reinforcement component 7 is a triangular structure, and the reinforcement angle 701 is set to three sides, and the three-sided reinforcement angles 701 are welded and fixed to each other. The reinforcement angle 701 is set to a triangular structure. The three groups of reinforcement angles 701 fixed by welding make the reinforcement angle 701 as a whole more stable after being fixed in the specified position. A groove opening 702 is set on the wall of the reinforcement angle 701, and a triangular beveled tooth block 703 is set at the inner end of the groove opening 702. The reinforcement angle 701 is snap-fitted and installed at the rhombus position of the bottom frame structure 1. The triangular reinforcement angle 701 is set to be snap-fitted and fixed at the rhombus position of the bottom frame structure 1, so that the beveled tooth block 703 of the reinforcement angle 701 can assist in connecting the bottom frame structure 1, thereby increasing the tensile and anti-extrusion effect of the corner position of the bottom frame structure 1.

[0049] Among them, two groups of connecting buckles 704 are arranged on the outer wall of the reinforcing corner 701, and each group of connecting buckles 704 is perpendicular to the outer edge of the reinforcing corner 701 close to it. First, after the reinforcing component 7 is clamped on the bottom frame structure 1, the reinforcing components 7 at the upper and lower symmetrical positions can be connected to the pull rope through the connecting buckles 704 on the outer wall of the reinforcing corner 701, so that after the bottom frame structure 1 is squeezed, the reinforcing component 7 fixed by the pull rope can help ensure that the overall shape of the box remains unchanged and play a role in pressure resistance.

[0050] The specific usage and function of this embodiment are as follows: the reinforcing corner 701 is set to a triangular structure, and the three groups of reinforcing corner 701 surfaces are fixed by welding, so that the reinforcing corner 701 as a whole has a more stable effect after being fixed in the specified position. The triangular reinforcing corner 701 is set to be clamped and fixed at the diamond-shaped position of the bottom frame structure 1, so that the oblique tooth block 703 of the reinforcing corner 701 can assist in connecting the bottom frame structure 1, and increase the tensile and anti-extrusion effect of the corner position of the bottom frame structure 1. First, after the reinforcing component 7 is clamped on the bottom frame structure 1, the reinforcing components 7 at the upper and lower symmetrical positions can be connected to the pull rope through the connecting buckle 704 on the outer wall of the reinforcing corner 701, so that after the bottom frame structure 1 is squeezed, the reinforcing component 7 fixed by the pull rope can assist in ensuring that the overall shape of the box remains unchanged, thereby playing a compressive resistance role.

[0051] Finally, it should be noted that when describing the position of each component and the matching relationship between them, the present invention usually takes one / a pair of components as an example. However, those skilled in the art should understand that such position, matching relationship, etc. are also applicable to other components / other pairs of components.

[0052] The above description is merely an exemplary embodiment of the present invention and is not intended to limit the protection scope of the present invention. The protection scope of the present invention is determined by the appended claims.

Claims

1. A cardboard box with anti-squeezing function, characterized in that: A cardboard box with an anti-squeezing function, comprising a bottom frame structure (1), wherein the bottom frame structure (1) is plugged and installed on a bearing structure (2), a supporting mechanism (3) is adhered to the bearing structure (2), and an external supporting rod (8) is installed outside the supporting mechanism (3); The cross section of the outer frame (101) of the bottom frame structure (1) is an "L"-shaped structure, the cross section of the outer frame (101) is the same as that of the outer support rod (8), a reinforcement rod (102) is fixed at the corner position of the inner wall of the outer frame (101), and the reinforcement rod (102) is a long strip structure; The contact positions at both ends of the outer support rod (8) are wrapped with outer protective plates (9), the outer support rod (8) and the outer protective plates (9) are both plugged and installed at the edge of the bottom frame structure (1), the bottom frame structure (1) is installed on the top of the outer support rod (8) and the outer protective plates (9), the top plate structure (4) is fixed to the upper bottom frame structure (1), the reinforcing component (7) is fixed at the corner position of the bottom frame structure (1), and the inner box component (5) is carried inside the support mechanism (3). A spacing component (6) is arranged inside the inner box component (5); the carrying box (501) of the inner box component (5) is a box structure; the carrying box (501) is placed at the inner end of the supporting mechanism (3); vertical positioning plates (601) are arranged on the inner wall of the carrying box (501); each group of positioning plates (601) is provided with a vertical groove; the spacing plates (602) are plugged and installed in the vertical grooves of the positioning plates (601); and the spacing plates (602) are mutually staggered structures; A plug-in board (103) is fixed at the inner end of the reinforcing rod (102), and a total of four groups of the plug-in boards (103) are provided. The outer frame (101) is inserted into the bearing structure (2) through the plug-in boards (103) on the reinforcing rod (102), and one-way sheets (104) are provided on the side walls of both sides of each group of plug-in boards (103), and the one-way sheets (104) are arranged in an inclined shape.

2. A cardboard box with an anti-squeezing function as claimed in claim 1, characterized in that: The bearing plate (201) of the bearing structure (2) is made of solid paperboard with a thickness greater than two millimeters. The bearing plate (201) is provided with two layers. A spacer layer (202) is provided between the two layers of bearing plates (201). The spacer layer (202) has a honeycomb structure.

3. A cardboard box with an anti-squeezing function as claimed in claim 1, characterized in that: The connecting plate (302) of the supporting mechanism (3) is fixed on the upper end surface of the bearing structure (2); supporting plates (301) are installed at both sides of the top surface of the connecting plate (302); slot frames (304) are provided at the upper and lower ends of the supporting plate (301); the inner end of the slot frame (304) is arranged as an inclined structure; two groups of clamping blocks (303) are provided at both ends of the connecting plate (302); and the supporting plate (301) is mounted on the clamping blocks (303) through the slot frames (304).

4. A cardboard box with an anti-squeezing function as claimed in claim 3, characterized in that: The top cover plate (401) of the top plate structure (4) is a rectangular plate structure. The top cover plate (401) is fixed between the top bottom frame structures (1). A connecting plate (302) facing the lower end is fixed at the bottom of the top cover plate (401). Positioning columns (402) facing the lower end are arranged at four groups of corner positions of the top cover plate (401).

5. A cardboard box with anti-squeezing function as claimed in claim 4, characterized in that: The reinforcing corner (701) of the reinforcing component (7) is a triangular structure. The reinforcing corner (701) is provided with three sides in total. The three reinforcing corners (701) are welded and fixed to each other. A groove opening (702) is provided on the wall of the reinforcing corner (701). A triangular oblique tooth block (703) is provided at the inner end of the groove opening (702). The reinforcing corner (701) is snap-fitted and installed at the water chestnut position of the bottom frame structure (1).

6. A cardboard box with an anti-squeezing function as claimed in claim 5, characterized in that: Two groups of connection buckles (704) are arranged on the outer wall of the reinforcement corner (701), and each group of connection buckles (704) is perpendicular to the outer edge of the reinforcement corner (701) to which it is adjacent.

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