A package that is easy to open

Abstract

The application provides a packaging box which is convenient to open, and relates to the field of packaging boxes. The packaging box comprises a box body and a box cover, the box cover is provided with a lock catch, the box body comprises a bottom plate, a side wall plate and a connecting frame, the connecting frame is provided with a locking hole, the locking hole comprises a large end part, a small end part and a communication part, the lock catch comprises a partition plate and a locking plate. The partition plate comprises a first side, a second side, a third side and a fourth side, the first side faces the large end part of the locking hole, the second side faces the small end part of the locking hole, and the third side and the fourth side face the inside of the box body and the outside of the box body respectively. The first side of the partition plate protrudes from the outside of the locking plate. The third side and / or the fourth side of the partition plate are located on the inside of the edge of the locking plate and form a limiting recess together with the locking plate and the box cover. When the lock catch is located in the communication part or the small end part, the connecting frame extends into the limiting recess and forms a limiting fit with the lock catch. The application provides a packaging box which is convenient to open and can conveniently open the box cover.

Description

Technical Field

[0001] This utility model relates to the field of packaging boxes, specifically a packaging box that is easy to open. Background Technology

[0002] Currently, packaging boxes on the market typically use a locking mechanism to fasten the box body and lid. The locking mechanism is located on the side of the lid facing the box body, and includes a circular partition 31 and a locking plate 32 arranged concentrically along the direction away from the lid. The diameter of the partition 31 is smaller than the diameter of the locking plate 32. A gourd-shaped locking hole 131 is provided on the connecting frame 13 along the upper edge of the box body to mate with the locking mechanism.

[0003] While this locking mechanism is aesthetically pleasing and effectively locks the latch, it also presents the problem of inconvenience in opening. A detailed analysis follows: When opening the lid, it needs to be pushed towards the larger end of the gourd hole. The pushing process usually stops when the latch comes into contact with the larger end 1311 of the gourd hole. Because the partition 31 and the locking plate 32 are coaxially arranged circular structures, and the diameter of the partition 31 is smaller than the diameter of the locking plate 32, when the latch comes into contact with the larger end 1311 of the gourd hole, it will appear as follows... Figure 18 In the state shown, a portion of the connecting frame 13 at the large end 1311 of the gourd hole extends into the gap between the partition 31 and the locking plate 32, meaning the lid is still locked and cannot be opened by pulling it upwards. At this point, the operator can only push the lid in the opposite direction to disengage the portion of the connecting frame 13 at the large end 1311 of the gourd hole from the locking plate 32, thus releasing the locking restriction on the lid. However, this process is performed without being able to see the specific position of the locking plate 32 within the locking hole 131, so the only solution is to repeatedly adjust the position of the lid and attempt to pull it upwards. Utility Model Content

[0004] To address the aforementioned issues, this application provides a packaging box that is easy to open, with the lid easily opened.

[0005] The technical solution adopted by this utility model to solve its technical problem is: A packaging box that is easy to open includes a box body and a box lid. The box lid is provided with a latch. The box body includes a bottom plate, side panels and a connecting frame. The connecting frame is provided with a locking hole that cooperates with the latch. The locking hole includes a large end, a small end and a connecting part. The latch includes a partition and a locking plate in sequence along the direction away from the box lid. The partition includes a first side, a second side, a third side, and a fourth side. The first side faces the large end of the locking hole, the second side faces the small end of the locking hole, and the third and fourth sides face the inside and outside of the box, respectively. The first side of the partition protrudes from the outer side of the locking plate; The third and / or fourth sides of the partition are located inside the edge of the locking plate and together with the locking plate and the lid, form a limiting recess. When the latch is located in the connecting part or the small end, the connecting frame extends into the limiting recess and forms a limiting engagement with the latch.

[0006] Furthermore, the partition has a rhomboid structure, the locking plate has a circular structure, and the second side of the partition protrudes outward from the outer side of the locking plate.

[0007] Furthermore, a limiting mechanism is provided between the box lid and the box body. The limiting mechanism includes a limiting plate that is rotatably connected to the side panel. A first groove is provided on the connecting frame, and a second groove is provided on the box lid. When the latch abuts against the small end of the locking hole, the first groove and the second groove are aligned. The limiting plate includes a limiting end and an operating end. When the operating end is pushed downward, the limiting end extends into the first groove and the second groove, and the upper side of the limiting end is located above the upper side of the connecting frame. When the operating end is pushed upward, the limiting end moves downward and disengages from the second groove.

[0008] Furthermore, a limiting boss is provided on the side of the limiting plate near the connecting frame, and the limiting boss restricts the extreme position of the upward movement of the operating end.

[0009] Furthermore, the side panel includes four side panels connected end to end in sequence. Each side panel includes a straight section, and one side of each end of the straight section is provided with a curved section and a connecting section. The connecting sections of two adjacent side panels are connected by an insertion method, and the curved sections of two adjacent side panels together form a double arc structure.

[0010] Furthermore, the upper and lower sides of the side panel are respectively provided with first insertion protrusions, and the connecting frame and the bottom plate are respectively provided with first insertion grooves that correspond to and cooperate with the first insertion protrusions.

[0011] Furthermore, the straight portion and the connecting portion of the side plate are both provided with a first insertion protrusion.

[0012] Furthermore, the corners of the base plate have a double-arc structure, and the outer and inner corners of the connecting frame also have a double-arc structure.

[0013] Furthermore, the box body is provided with an inner support, the inner support includes a support plate, the support plate is provided with a plurality of receiving holes, and the support plate is provided with at least two upright plates for supporting the support plate.

[0014] Furthermore, a buffer pad is provided inside the box on the lower side of the support plate, and the buffer pad is provided with receiving grooves that correspond one-to-one with the receiving holes.

[0015] The beneficial effects of this utility model are: 1. The present application provides a packaging box that is easy to open. By making one end of the partition protrude from the outside of the locking plate towards the large end of the locking hole, when the box lid is opened, even if the latch is against the large end of the locking hole, the locking plate will be located inside the locking hole. This avoids the restriction of the locking plate when the box lid is lifted upwards, and the box lid can be opened easily without repeated adjustments and attempts.

[0016] 2. The packaging box provided in this application is easy to open. Compared with the existing locking packaging box, it does not require additional costs. It only requires changing the shape of the partition or the relative position of the partition with the locking plate. Small changes can solve big problems. It is simple, practical and easy to promote. Attached Figure Description

[0017] Figure 1 A three-dimensional structural diagram of a packaging box that is easy to open, provided for Embodiment 1 of this application; Figure 2 for Figure 1 A magnified structural diagram of part A in the middle; Figure 3 This is a schematic diagram of the three-dimensional structure of the box lid; Figure 4 for Figure 3 A magnified structural diagram of part B in the middle section; Figure 5 This is a partial bottom view of the box lid; Figure 6 This is an exploded view of the box. Figure 7 This is an exploded view of the internal support structure. Figure 8 This is a three-dimensional structural diagram of the side panel; Figure 9 for Figure 8 A magnified structural diagram of section C; Figure 10 A three-dimensional structural diagram of the limit mechanism in the locked state; Figure 11 for Figure 10 A magnified structural diagram of section D in the middle; Figure 12 This is a schematic diagram showing the positional relationship between the latch and the locking hole when the packaging box is in the locked state. Figure 13 A three-dimensional structural diagram of the limit mechanism in the open state; Figure 14 A schematic diagram showing the positional relationship between the latch and the locking hole when the packaging box is in the open state; Figure 15 A schematic diagram of the structure of a lock for a packaging box that is easy to open, provided in Embodiment 2 of this application; Figure 16 A schematic diagram of the structure of a lock for a packaging box that is easy to open, provided in Embodiment 4 of this application; Figure 17 A schematic diagram of the structure of a side panel of a packaging box that is easy to open, provided in Embodiment 5 of this application; Figure 18 This is a diagram showing the working state of the existing latch.

[0018] In the diagram: 1. Box body; 11. Base plate; 12. Side plate; 121. Straight section; 122. Bending section; 1221. Groove; 123. Connecting section; 1231. Insertion hook; 1232. Third insertion protrusion; 124. First insertion protrusion; 13. Connecting frame; 131. Locking hole; 1311. Large end; 1312. Small end; 1313. Connecting section; 132. First groove; 2. Box lid; 21. Second slot; 3. Lock; 31. Partition; 311. First side; 312. Second side; 313. Third side; 314. Fourth side; 32. Locking plate; 4. Press-fit expansion rivets; 5. Limiting plate; 51. Limiting end; 52. Operating end; 53. Limiting boss; 6. Inner bracket; 61. Support plate; 611. Receiving hole; 612. Clearance notch; 613. Groove; 6131. ​​Second insertion protrusion; 62. Vertical plate; 621. Second insertion slot; 622. Clearance hole; 7. Buffer pad; 71. Receiving groove. Detailed Implementation

[0019] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be described in detail below with reference to the accompanying drawings. The described embodiments are merely a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort should fall within the protection scope of this application.

[0020] To facilitate understanding of the specific embodiments of this application, a coordinate system is now defined as follows: Figure 1 As shown, the left and right directions are horizontal, the front and back directions are vertical, and the up and down directions are vertical.

[0021] Example 1 like Figure 1 As shown, an easy-to-open packaging box includes a box body 1 and a box lid 2.

[0022] A latch 3 is provided on the side of the lid 2 facing the box body 1. As one specific embodiment, according to... Figure 1 In the coordinate system shown, two latches 3 are respectively provided on the front and rear sides of the box cover 2 in this embodiment.

[0023] The box body 1 includes a bottom plate 11 and side panels from bottom to top. The bottom plate 11 and the side panels together form an upward-facing receiving space. A connecting frame 13 is provided on the upper edge of the side panel. The connecting frame 13 is provided with locking holes 131 that correspond one-to-one with the latches 3. The locking holes 131 cooperate with the corresponding latches 3 to connect and lock the lid 2 and the box body 1.

[0024] The locking hole 131 includes a large end 1311, a small end 1312, and a connecting portion 1313, wherein the width of the large end 1311 (according to...) Figure 1 The coordinate system shown is for dimensions along the front-to-back direction, which is greater than the width of the small end 1312 (according to...). Figure 1 The coordinate system shown is the dimension along the front-back direction. The connecting part 1313 is located between the large end 1311 and the small end 1312 and is used to connect the large end 1311 and the small end 1312.

[0025] In one specific embodiment, both the large end 1311 and the small end 1312 of the locking hole 131 in this embodiment are circular, and the diameter of the large end 1311 is larger than the diameter of the small end 1312. The width of the connecting portion 1313 (according to...) Figure 1 The coordinate system shown is the dimension along the front-back direction. The diameter of the small end 1312 is equal to that of the small end 1312. The locking hole 131 has an overall gourd-shaped structure.

[0026] like Figure 3 , Figure 4 and Figure 5As shown, the latch 3 includes a partition 31 and a locking plate 32 in sequence along a direction perpendicular to and away from the lid 2. The partition 31 includes a first side 311, a second side 312, a third side 313, and a fourth side 314. The first side 311 faces the large end 1311 of the locking hole 131, the second side 312 faces the small end 1312 of the locking hole 131, the third side 313 and the fourth side 314 are arranged opposite to each other, the third side 313 faces the inside of the box body 1, and the fourth side 314 faces the outside of the box body 1.

[0027] The first side 311 of the partition 31 (i.e., the end facing the large end 1311 of the locking hole 131) protrudes outward from the outer side of the locking plate 32. The third side 313 and the fourth side 314 of the partition 31 (according to...) Figure 1 The coordinate system shown is the front and rear sides of the partition 31. It is located inside the edge of the locking plate 32 and together with the locking plate 32 and the body of the box cover 2, it forms a limiting recess. When the latch 3 is located in the connecting part 1313 or the small end 1312, the connecting frame 13 extends into the limiting recess and forms a limiting fit with the latch 3, thereby locking the box cover 2.

[0028] When the latch 3 is at the large end 1311 of the locking hole 131, if a front-to-back pushing force is applied to the lid 2, the connecting frame 13 can be inserted into the limiting recess. However, since the opening process applies a pushing force in the left-to-right direction, and under the guiding action of the connecting part 1313, the lid 2 hardly moves in the front-to-back direction. In addition, since the front-to-back dimension of the large end 1311 is larger than the front-to-back dimension of the locking plate 32, that is, when the locking plate 32 is located at the large end 1311 of the locking hole 131, there is a gap between the locking plate 32 and the side wall of the large end 1311 of the locking hole 131. Therefore, during the opening process, when the latch 3 slides to the large end 1311 of the locking hole 131, the lid 2 will not be unable to be opened because the connecting frame 13 is inserted into the limiting recess.

[0029] In one specific embodiment, the partition 31 has a rhomboid structure, and the locking plate 32 has a circular structure.

[0030] Furthermore, one end of the partition 31 facing the small end 1312 of the locking hole 131 (i.e., the second side 312 of the partition 31) protrudes out of the outer side of the locking plate 32.

[0031] In one specific implementation, the geometric center of the rhomboid partition 31 in this embodiment coincides with the geometric center (i.e., the center of the circle) of the circular locking plate 32, and according to... Figure 1 In the coordinate system shown, the left and right ends of the partition 31 protrude from the outer side of the locking plate 32, respectively.

[0032] In one specific embodiment, the partition 31 and locking plate 32 are fixedly mounted on the cover 2 by press-fit expansion rivets 4. The press-fit expansion rivets 4 are generally made of plastic or nylon and can be obtained directly through external purchase; their specific structure will not be described in detail here.

[0033] Furthermore, a limiting mechanism is provided between the box lid 2 and the box body 1 to prevent the box lid 2 from being accidentally opened due to shaking or other reasons during the handling of the packaging box.

[0034] like Figure 11 and Figure 13 As shown, the limiting mechanism includes a limiting plate 5 disposed on the side panel of the box body 1, and the limiting plate 5 is located on the side of the larger end 1311 of the locking hole 131. The connecting frame 13 is provided with a first slot 132, and the box cover 2 is provided with a second slot 21. When the latch 3 abuts against the smaller end 1312 of the locking hole 131, the edge of the box cover 2 is aligned with the edge of the connecting frame 13 of the box body 1, and the first slot 132 is aligned with the second slot 21. The middle part of the limiting plate 5 is rotatably connected to the side panel, and the hinge point is located on one side of the first slot 132. The end of the limiting plate 5 facing the first slot 132 is the limiting end 51, and the end of the limiting plate 5 facing away from the first slot 132 is the operating end 52. When the operating end 52 is pushed downwards, the limiting end 51 extends into the first slot 132 and the second slot 21, and the upper side of the limiting end 51 is located above the upper side of the connecting frame 13. The limiting plate 5 restricts the degree of freedom of the lid 2 to move along the locking hole 131 towards the larger end 1311 of the locking hole 131. When the operating end 52 is pushed upwards, the limiting end 51 moves downwards and disengages from the second slot 21. At this time, the lid 2 is in the unlocked state and can move along the locking hole 131 towards the larger end 1311 of the locking hole 131.

[0035] Furthermore, a limiting boss 53 is provided on the side of the limiting plate 5 near the connecting frame 13, and the limiting boss 53 restricts the extreme position of the upward movement of the operating end 52. That is, when the limiting boss 53 abuts against the lower side of the connecting frame 13, the limiting end 51 disengages from the second slot 21, and the box cover 2 is in the unlocked state.

[0036] In one specific implementation, the limiting plate 5 described in this embodiment is connected to the side panel via a press-type expansion rivet 4.

[0037] Furthermore, such as Figure 1 , Figure 6 , Figure 8 and Figure 9 As shown, the side panel includes four side panels 12, which are connected end-to-end to form a square side panel structure. Each side panel 12 includes a straight portion 121 and curved portions 122 located at both ends of the straight portion 121. The curved portions 122 bend inwards towards the box body 1. A straight connecting portion 123 is provided at the end of the curved portion 122 facing away from the straight portion 121, and the connecting portion 123 is perpendicular to the straight portion 121, meaning the central angle corresponding to the curved portion 122 is 90°. The connecting portions 123 of adjacent side panels 12 are connected by an insertion method, and the curved portions 122 of adjacent side panels 12 together form a double-arc structure, meaning the corners of the side panel have a double-arc structure.

[0038] In one specific embodiment, in two adjacent side plates 12, one side plate 12 has an upward-facing insertion hook 1231 on its connecting portion 123, and the other side plate 12 has a downward-facing insertion hook 1231 on its connecting portion 123. The upward-facing insertion hook 1231 corresponds one-to-one with the downward-facing insertion hook 1231, and the downward-facing insertion hook 1231 is inserted into the upward-facing insertion hook 1231 by pressing. For example, each side plate 12 has two insertion hooks 1231 on its connecting portion 123.

[0039] In one specific embodiment, the side panel 12 described in this example is made of bamboo, wood, or synthetic wood-based panels. The curved portion 122 of the side panel 12 has multiple grooves 1221 along the bending direction. These grooves 1221 are discontinuous in the vertical direction, and the discontinuity points of adjacent grooves are staggered. By providing these grooves, the flexibility of the side panel 12 can be altered, thereby allowing it to be bent into an arc-shaped curved portion 122.

[0040] Furthermore, the upper and lower sides of the side panel are respectively provided with first insertion protrusions 124, the connecting frame 13 is provided with a first insertion groove that cooperates with the first insertion protrusion 124 on the upper side, and the bottom plate 11 is provided with a first insertion groove that cooperates with the first insertion protrusion 124 on the lower side.

[0041] Furthermore, the straight portion 121 and the connecting portion 123 of the side plate body 12 are both provided with a first insertion protrusion 124.

[0042] In one specific embodiment, this embodiment provides a connecting portion 123 with an opening facing upwards and a first insertion protrusion 124 on the lower side; the connecting portion 123 with an opening facing downwards and a first insertion protrusion 124 on the upper side.

[0043] Furthermore, the corner of the base plate 11 has a double arc structure, and the outer corner of the connecting frame 13 has a double arc structure.

[0044] In one specific embodiment, the projections of the outer edges of the base plate 11 and the connecting frame 13 in the horizontal plane coincide, the outer side of the side panel is located inside the outer edges of the base plate 11 and the connecting frame 13, and the distance from the outer side of the side panel to the edge of the base plate 11 is uniform.

[0045] Furthermore, the inner corner of the connecting frame 13 has a double arc structure, and the connection of the double arc structure is smoothly transitioned.

[0046] Furthermore, an inner support 6 is provided inside the box body 1.

[0047] like Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, the inner support 6 includes a support plate 61, on which a plurality of receiving holes 611 are provided. The shapes of each receiving hole 611 can be the same or different, and the shape of the receiving hole 611 is not fixed; it can be square, circular, or other irregular shapes. In actual production, the shape of the receiving hole 611 can be specifically designed according to the shape of the object being placed.

[0048] Furthermore, the support plate 61 is provided with clearance notches 612 at its four corners to allow the structure at the connection between adjacent side plates 12 to be avoided. When the support plate 61 is pulled upward, the clearance notches 612 can allow the structure at the connection between adjacent side plates 12 to be avoided, thereby preventing interference.

[0049] Furthermore, the inner support 6 also includes at least two upright plates 62 for supporting the support plate 61. The support plate 61 is fixedly connected to the upright plates 62.

[0050] In one specific embodiment, the inner support 6 in this embodiment includes four upright plates 62, and the four upright plates 62 are respectively located at the middle of the four sides of the support plate 61.

[0051] In one specific embodiment, the support plate 61 in this embodiment is provided with a second insertion protrusion 6131 extending horizontally outward, and the upright plate 62 is provided with a second insertion groove 621 that cooperates with the second insertion protrusion 6131.

[0052] Furthermore, the height of the upright plate 62 is equal to the distance between the connecting frame 13 and the base plate 11. The upper side of the upright plate 62 is in contact with the lower side of the connecting frame 13, and the lower side of the upright plate 62 is in contact with the base plate 11. An avoidance hole 622 is provided on the upright plate 62 located on one side of the limiting plate 5 to avoid the press-fit expansion rivet 4.

[0053] Furthermore, the support plate 61 is fitted to the inner wall of the side panel, and the support plate 61 is provided with a groove 613 for accommodating the upright plate 62, and the second insertion protrusion 6131 is located within the groove 613. Preferably, the depth of the groove 613 is equal to the thickness of the upright plate 62.

[0054] Furthermore, a buffer pad 7 is provided inside the box body 1 on the lower side of the support plate 61. The buffer pad 7 is provided with receiving grooves 71 that correspond one-to-one with the receiving holes 611. The four corners of the buffer pad 7 are chamfered to avoid interference with the connection structure of the two adjacent side plates 12. The shape of the receiving groove 71 is the same as the corresponding receiving groove 71, but the size of the receiving groove 71 is not limited, that is, the size of the receiving groove 71 can be greater than, equal to or smaller than the size of the corresponding receiving hole 611.

[0055] Preferably, the cushioning pad 7 is made of EPE pearl cotton, sponge or foam.

[0056] Example 2 The locking hole 131 described in this application can be not only gourd-shaped, but also other structures, as long as the width of the larger end 1311 is greater than the width of the smaller end 1312. Meanwhile, the partition 31 is not limited to a rhomboid structure, and the locking plate 32 is not limited to a circular structure. Regardless of the structure used, as long as the end of the partition 31 facing the larger end 1311 of the locking hole 131 protrudes beyond the outer side of the locking plate 32, and the two sides of the partition 31 along the direction perpendicular to the locking hole 131 are located inside the edge of the locking plate 32, the locking plate 31 can be used.

[0057] As one specific implementation method, such as Figure 15In this embodiment, the large end 1311 of the locking hole 131 has a square structure, the small end 1312 has a square structure, the width of the connecting part 1313 is equal to the width of the small end 1312, and the connection between the connecting part 1313 and the large end 1311 is a smooth transition. Both the partition 31 and the locking plate 32 have square structures, and the side of the partition 31 facing the small end 1312 of the locking hole 131 is flush with the side of the locking plate 32.

[0058] The rest of the structure is the same as in Example 1.

[0059] Example 3 The difference between this embodiment and embodiment two is that: the side of the locking hole 131 connecting part 1313 near the inside of the box body 1 is flush with the side of the large end 1311 near the inside of the box body 1; the side of the third side 313 of the partition 31 is flush with the side of the locking plate 32 facing the inside of the box body 1; or the side of the third side 313 of the partition 31 protrudes from the side of the locking plate 32 facing the inside of the box body 1.

[0060] Alternatively, the opposite structure can be used. That is, the side of the locking hole 131 connecting part 1313 near the outside of the box body 1 is flush with the side of the large end 1311 near the outside of the box body 1, the side of the fourth side 314 of the partition 31 is flush with the side of the locking plate 32 facing the outside of the box body 1, or the side of the fourth side 314 of the partition 31 protrudes from the side of the locking plate 32 facing the outside of the box body 1.

[0061] The rest of the structure is the same as in Example 1.

[0062] Example 4 The locking hole 131 described in this application can be not only gourd-shaped, but also other structures, as long as the width of the larger end 1311 is greater than the width of the smaller end 1312. Meanwhile, the partition 31 is not limited to a rhomboid structure, and the locking plate 32 is not limited to a circular structure. Regardless of the structure used, as long as the end of the partition 31 facing the larger end 1311 of the locking hole 131 protrudes beyond the outer side of the locking plate 32, and the two sides of the partition 31 along the direction perpendicular to the locking hole 131 are located inside the edge of the locking plate 32, the locking plate 31 can be used.

[0063] As one specific implementation method, such as Figure 16In this embodiment, both the partition 31 and the locking plate 32 are circular, and the diameter of the partition 31 is smaller than the diameter of the locking plate 32. The partition 31 and the locking plate 32 are staggered, meaning that the center of the partition 31 is offset relative to the center of the locking plate 32 towards the larger end 1311 of the locking hole 131, and the line connecting the centers of the partition 31 and the locking plate 32 is parallel to the sliding direction of the lid 2 relative to the box body 1.

[0064] The rest of the structure is the same as in Example 1.

[0065] Example 5 The difference between this embodiment and Embodiment 1 is that: Figure 17 As shown, in two adjacent side plates 12, one side plate 12 has three third insertion protrusions 1232 on its connecting portion 123, and the other side plate 12 has a third insertion groove that mates with the third insertion protrusions 1232 on its connecting portion 123. The rest of the structure is the same as in Embodiment 1.

[0066] Example 6 The difference between this embodiment and Embodiment 1 is that the groove 613 on the support plate 61 is removed, the upright plate 62 is located below the support plate 61, the upper end of the upright plate 62 is provided with a fourth insertion protrusion, and the edge of the support plate 61 is provided with a fourth insertion groove that mates with the fourth insertion protrusion. Preferably, the outer surface of the upright plate 62 is aligned with the edge of the support plate 61. The remaining structure is the same as in Embodiment 1.

[0067] Other embodiments obtained by those skilled in the art based on the embodiments provided in this application by combining, splitting, or reorganizing the embodiments of this application do not exceed the protection scope of this application.

[0068] The above detailed embodiments have provided a detailed explanation of the purpose, technical solutions, and beneficial effects of the embodiments of this application. The above are merely specific embodiments of the embodiments of this application and are not intended to limit the protection scope of the embodiments of this application. That is, any modifications, equivalent substitutions, improvements, etc., made on the basis of the embodiments of this application should be included within the protection scope of the embodiments of this application.

Claims

1. A conveniently opened packaging box, comprising a box body (1) and a box lid (2), wherein the box lid (2) is provided with a latch (3), and the box body (1) comprises a bottom plate (11), side panels and a connecting frame (13), wherein the connecting frame (13) is provided with a locking hole (131) that cooperates with the latch (3), characterized in that: The locking hole (131) includes a large end (1311), a small end (1312) and a connecting part (1313), and the latch (3) includes a partition (31) and a locking plate (32) in sequence along the direction away from the box cover (2). The partition (31) includes a first side (311), a second side (312), a third side (313) and a fourth side (314). The first side (311) faces the large end (1311) of the locking hole (131), the second side (312) faces the small end (1312) of the locking hole (131), and the third side (313) and the fourth side (314) face the inside of the box (1) and the outside of the box (1) respectively. The first side (311) of the partition (31) protrudes out of the outer side of the locking plate (32); The third side (313) and / or the fourth side (314) of the partition (31) are located inside the edge of the locking plate (32) and together with the locking plate (32) and the cover (2) form a limiting recess. When the latch (3) is located in the connecting part (1313) or the small end (1312), the connecting frame (13) extends into the limiting recess and forms a limiting engagement with the latch (3).

2. The easy-to-open packaging box according to claim 1, characterized in that: The partition (31) has a rhomboid structure, the locking plate (32) has a circular structure, and the second side (312) of the partition (31) protrudes out of the outer side of the locking plate (32).

3. The easy-to-open packaging box according to claim 1, characterized in that: A limiting mechanism is provided between the box cover (2) and the box body (1). The limiting mechanism includes a limiting plate (5) that is rotatably connected to the side panel. A first slot (132) is provided on the connecting frame (13), and a second slot (21) is provided on the box cover (2). When the buckle (3) abuts against the small end (1312) of the locking hole (131), the first slot (132) is aligned with the second slot (21). The limiting plate (5) includes a limiting end (51) and an operating end (52). When the operating end (52) is pushed down, the limiting end (51) extends into the first slot (132) and the second slot (21), and the upper side of the limiting end (51) is located above the upper side of the connecting frame (13). When the operating end (52) is pushed up, the limiting end (51) moves down and disengages from the second slot (21).

4. The easy-to-open packaging box according to claim 3, characterized in that: A limiting boss (53) is provided on the side of the limiting plate (5) near the connecting frame (13), and the limiting boss (53) restricts the extreme position of the upward movement of the operating end (52).

5. A convenient-to-open packaging box according to claim 1, characterized in that: The side panel includes four side panels (12) connected end to end in sequence. Each side panel (12) includes a straight section (121). Both ends of the straight section (121) are provided with a curved section (122) and a connecting section (123). The connecting sections (123) of two adjacent side panels (12) are connected by a plug-in method, and the curved sections (122) of two adjacent side panels (12) together form a double arc structure.

6. A packaging box that is easy to open according to claim 5, characterized in that: The upper and lower sides of the side panel are respectively provided with first insertion protrusions (124), and the connecting frame (13) and the bottom plate (11) are respectively provided with first insertion grooves that correspond to and cooperate with the first insertion protrusions (124).

7. A packaging box that is easy to open according to claim 6, characterized in that: The straight portion (121) and the connecting portion (123) of the side plate body (12) are both provided with a first insertion protrusion (124).

8. A packaging box that is easy to open according to claim 5, characterized in that: The corner of the base plate (11) has a double arc structure, and the outer and inner corners of the connecting frame (13) have a double arc structure.

9. A convenient-to-open packaging box according to claim 1, characterized in that: The box body (1) is provided with an inner support (6), the inner support (6) includes a support plate (61), the support plate (61) is provided with a plurality of receiving holes (611), and the support plate (61) is provided with at least two upright plates (62) for supporting the support plate (61).

10. A packaging box that is easy to open according to claim 9, characterized in that: Inside the box (1), a buffer pad (7) is provided on the lower side of the support plate (61), and the buffer pad (7) is provided with a receiving groove (71) corresponding to the receiving hole (611).

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