Stacked packaging carton
By using the interlocking and fastening structure of the outer and inner frames, the problem of structural instability during the stacking and storage of cartons is solved, and stable stacking of cartons is achieved.
Patent Information
- Application Number
- CN202422881744.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-11-26
AI Technical Summary
Cardboard boxes become structurally unstable during stacking, especially the tallest boxes, which are prone to shifting their center of gravity and risk falling.
The outer and inner frames are interlocked, and the outer and inner frames slide up and down relative to each other and are fastened together by a fastening structure to form a stable stacked carton.
It improves the structural stability of cartons during stacking and storage, preventing cartons from sliding or falling due to gravity or external interference.
Smart Images
Figure CN223619183U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cardboard box technology, and in particular to a stacked packaging cardboard box. Background Technology
[0002] Cardboard boxes are mainly made of cardboard and are often used to package and store various items. When there are many cardboard boxes, it is easy to think of stacking them to save storage space at the bottom and to make the boxes more organized.
[0003] However, during the stacking process, the higher the cardboard box is, the more likely it is to shift its center of gravity and become structurally unstable. Especially when disturbed, it may fall. Utility Model Content
[0004] Therefore, it is necessary to provide a stackable packaging carton to solve the problem of structural instability of the carton during stacked storage.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a stacked packaging carton, comprising a carton body, an outer frame, an inner frame, and a fastening structure, wherein the outer frame and the inner frame are both fitted around the outer periphery of the carton body; the outer frame and the inner frame are slidably fitted together vertically; when the outer frame and the inner frame slide apart vertically, the outer frame or the inner frame is higher than the top of the carton body; a fastening structure is provided between the outer frame and the inner frame for fastening the outer frame and the inner frame.
[0006] Furthermore, the outer frame is fixedly installed on the outer periphery of the box body, and when the outer frame and the inner frame slide apart relative to each other, the inner frame is higher than the top of the box body; or the inner frame is fixedly installed on the outer periphery of the box body, and when the outer frame and the inner frame slide apart relative to each other, the outer frame is higher than the top of the box body.
[0007] Furthermore, the outer frame and the inner frame are slidably connected vertically: including at least one vertical first strip hole opened on the side of the outer frame; and also including the same number of first sliders as the first strip hole, disposed at the lower part of the inner frame, and passing through the first strip hole and abutting the bottom of the first strip hole.
[0008] Furthermore, there are two first strip holes, which are opened on two sides of the outer frame.
[0009] Furthermore, the fastening structure includes a first fastening part and a second fastening part, the number of which is the same as the number of the first strip holes; the first fastening part is disposed on the upper part of the outer frame, and the second fastening part is disposed on the first slider; the first fastening part and the second fastening part are used to form a fastening connection.
[0010] Furthermore, the fastening part includes a first support block and a first threaded rod. The first support block is disposed on the upper part of the outer frame, one end of the first threaded rod is disposed on the bottom end of the first support block, and the other end of the first threaded rod faces downward. The fastening part includes a first bearing, a first nut, and a first through hole opened on the first slider. The first through hole extends vertically and corresponds to the first threaded rod. The first bearing is fixedly disposed on the bottom end of the first slider and communicates with the first through hole. The first nut is fixedly disposed on the inner ring of the first bearing and protrudes downward, and communicates with the first through hole.
[0011] Furthermore, the fastening part includes a first support block and a first threaded rod. The first support block is disposed on the upper part of the outer frame, one end of the first threaded rod is disposed on the bottom end of the first support block, and the other end of the first threaded rod faces downward. The fastening part includes a second nut and a first through hole opened on the first slider. The first through hole extends vertically and corresponds to the first threaded rod. The second nut is used to form a threaded connection with the first threaded rod when the first threaded rod passes through the first through hole.
[0012] Furthermore, the box body includes a lid and a body, the lid being disposed on top of the box body and used to cover the body; the outer frame and the inner frame are both fitted around the outer periphery of the body.
[0013] Furthermore, the bottom of the box or the box body is provided with a wheel structure.
[0014] Furthermore, the wheel structure includes multiple rotating rollers; the multiple rotating rollers are arranged side by side at the bottom of the box body; the rotating rollers are rotatably connected to the bottom of the box body.
[0015] The technical effects achieved by the above technical solution, which differ from existing technologies, are as follows:
[0016] One cardboard box is stacked on top of another, with both the outer and inner frames fitting around the outer perimeter of the box. The outer and inner frames of the lower cardboard box slide up and down relative to each other, so that the outer or inner frame is higher than the top of the box, thus enclosing the upper cardboard box. The outer and inner frames are then secured with fastening structures, making the cardboard boxes more stable during stacking. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of a cardboard box according to one embodiment;
[0018] Figure 2 This is a schematic diagram of the bottom of the box according to one embodiment;
[0019] Figure 3This is a top view of the outer frame and inner frame as described in one embodiment;
[0020] Figure 4 This is a top view of the inner frame as described in one embodiment;
[0021] Figure 5 A side view of the outer frame as described in one embodiment;
[0022] Figure 6 This is a cross-sectional view of the outer frame as described in one embodiment, which also includes the inner frame;
[0023] Figure 7 for Figure 6 Enlarged view of region A in the middle;
[0024] Figure 8 for Figure 6 Enlarged view of region B in the middle;
[0025] Figure 9 This is a top view of the outer frame and inner frame as described in one embodiment;
[0026] Figure 10 This is a top view of the outer frame and inner frame as described in one embodiment;
[0027] Figure 11 for Figure 10 Enlarged view of region C in the middle;
[0028] Figure 12 for Figure 10 Enlarged view of region D in the middle;
[0029] Figure 13 This is a schematic diagram of a cardboard box being stacked according to one embodiment, wherein the outer frame and inner frame have not yet slid apart relative to each other, and the upper cardboard box has not yet been enclosed;
[0030] Explanation of reference numerals in the attached figures:
[0031] Box body 1, box lid 11, box body 12, second recess 13
[0032] Outer frame 2, first strip hole 21, second strip hole 28
[0033] Inner frame 3, first slider 31, second slider 32
[0034] Fastening component 1: First support block 22, first threaded rod 23, first bolt 24, second through hole 25, second bolt 26, third through hole 27
[0035] Fastening Part Two: First Bearing 32, First Nut 33, First Through Hole 34
[0036] Three fastening components: second support block 301, second threaded rod 302,
[0037] The four fastening components are: second bearing 201, fourth nut 202, fifth through hole 203, rotating roller 41, and first groove 42. Detailed Implementation
[0038] To explain in detail the technical content, structural features, objectives, and effects of the technical solution, the following description is provided in conjunction with specific embodiments and accompanying drawings.
[0039] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.
[0040] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.
[0041] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.
[0042] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.
[0043] Unless otherwise specified, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.
[0044] Similar to the interpretation in the Patent Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also interpreted in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.
[0045] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.
[0046] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this application pertains, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.
[0047] Please see Figures 1-13 This utility model provides a stacked packaging carton, including a carton body 1, an outer frame 2, an inner frame 3, and a fastening structure. The outer frame 2 and the inner frame 3 are both fitted around the outer periphery of the carton body 1. The outer frame 2 and the inner frame 3 are slidably connected vertically. When the outer frame 2 and the inner frame 3 slide open vertically, the outer frame 2 or the inner frame 3 is higher than the top of the carton body 1. A fastening structure is provided between the outer frame 2 and the inner frame 3 for fastening the outer frame 2 and the inner frame 3.
[0048] The basic principle is as follows: one cardboard box is stacked on top of another cardboard box, with the outer frame 2 and inner frame 3 fitting around the outer perimeter of the box body 1; the outer frame 2 and inner frame 3 on the box body 1 of the lower cardboard box slide up and down relative to each other, so that the outer frame 2 or inner frame 3 is higher than the top of the box body 1, thereby surrounding the cardboard box of the upper layer; then the outer frame 2 and inner frame 3 are fastened by a fastening structure, so that the structure of the cardboard boxes is more stable during the stacking and storage process.
[0049] It is worth mentioning that this article exemplifies the stacking of two cardboard boxes, one on the top layer and one on the bottom layer. It is not limited to just two cardboard boxes; a third cardboard box, a fourth cardboard box, and so on can be stacked on top of each other.
[0050] In some embodiments, the outer frame 2 is fixedly disposed on the outer periphery of the box body 1; when the outer frame 2 and the inner frame 3 slide apart relative to each other, the inner frame 3 is higher than the top of the box body 1. Thus, when the outer frame 2 and the inner frame 3 slide apart relative to each other, the outer frame 2 remains stationary, while the inner frame 3 slides upward relative to each other, making the inner frame 3 higher than the top of the box body 1, thereby surrounding the uppermost cardboard box and thus stabilizing the structure.
[0051] In some embodiments, the outer frame 2 and the inner frame 3 are slidably connected vertically: the outer frame 2 includes at least one vertical first strip-shaped hole 21, formed on the side of the outer frame 2; it also includes the same number of first sliders 31 as the first strip-shaped hole 21, disposed at the lower part of the inner frame 3, passing through the first strip-shaped hole 21 and abutting against the bottom of the first strip-shaped hole 21. Thus, when the outer frame 2 and the inner frame 3 are not sliding vertically relative to each other, since the outer frame 2 is fixedly mounted on the housing 1, the inner frame 3 abuts against the bottom of the first strip-shaped hole 21 through the first sliders 31, thereby supporting the inner frame 3. When the outer frame 2 and the inner frame 3 slide vertically relative to each other, if there is only one first slider 31, the inner frame 3 can be grasped and lifted upwards by hand, causing the first slider 31 of the inner frame 3 to slide upwards through the first strip-shaped hole 21, thereby moving the inner frame 3 upwards.
[0052] In some embodiments, there are two first strip-shaped holes 21, located on two sides of the outer frame 2. This allows the outer frame 2 and inner frame 3 to slide relative to each other vertically, directly lifting or pushing the first slider 31 passing through the first strip-shaped hole 21, resulting in a more even force distribution on the inner frame 3 as it slides upwards. When the outer frame 2 and inner frame 3 are not sliding relative to each other, the first slider 31 abuts against the bottom of the first strip-shaped hole 21, further ensuring a more even supporting force on the inner frame 3 through the first strip-shaped hole 21.
[0053] Preferably, the two first strip-shaped holes 21 are symmetrically arranged on two sides of the outer frame 2. In this way, when the outer frame 2 and the inner frame 3 slide relative to each other up and down, the first slider 31 passing through the first strip-shaped hole 21 can be directly lifted or pushed up together, so that the force on the inner frame 3 when it slides upward is more even; when the outer frame 2 and the inner frame 3 do not slide relative to each other, the first slider 31 abuts against the bottom of the first strip-shaped hole 21, so that the supporting force of the inner frame 3 through the first strip-shaped hole 21 is more even; and the symmetrical arrangement is also more aesthetically pleasing.
[0054] In some embodiments, the fastening structure includes a first fastening part and a second fastening part, the number of which is the same as the number of the first strip holes 21; the first fastening part is disposed on the upper part of the outer frame 2, and the second fastening part is disposed on the first slider 31; the first fastening part and the second fastening part are used to form a fastening connection. Thus, when the outer frame 2 and the inner frame 3 slide apart relative to each other, making the outer frame 2 or the inner frame 3 higher than the top of the box 1, thereby surrounding the upper box 1, the first fastening part and the second fastening part can fasten the outer frame 2 and the inner frame 3 together, so that the outer frame 2 or the inner frame 3 will not slide down again under the action of gravity.
[0055] In some embodiments, the fastening part includes a first support block 22 and a first threaded rod 23. The first support block 22 is disposed on the upper part of the outer frame 2, and one end of the first threaded rod 23 is disposed at the bottom end of the first support block 22, while the other end of the first threaded rod 23 faces downward. The fastening part includes a first bearing 32, a first nut 33, and a first through hole 34 formed on the first slider 31. The first through hole 34 extends vertically and corresponds to the first threaded rod 23. The first bearing 32 is fixedly disposed at the bottom end of the first slider 31 and communicates with the first through hole 34. The first nut 33 is fixedly disposed on the inner ring of the first bearing 32 and protrudes downward, and communicates with the first through hole 34. Since the inner ring and the outer ring of the first bearing 32 are rotatably connected, the first nut 33 also has a rotational effect through the inner ring of the first bearing 32. Therefore, when the outer frame 2 and the inner frame 3 slide apart relative to each other, the first slider 31 of the inner frame 3 slides upward, causing the first threaded rod 23 to pass through the first through hole 34. At this time, the first nut 33 can be rotated to form a threaded connection with the first threaded rod 23, thereby fastening the first support block 22 and the first slider 31 together, thus fastening the outer frame 2 and the inner frame 3 together.
[0056] In some embodiments, the fastening part includes a first support block 22 and a first threaded rod 23. The first support block 22 is disposed on the upper part of the outer frame 2, and one end of the first threaded rod 23 is disposed at the bottom end of the first support block 22, while the other end of the first threaded rod 23 faces downward. The fastening part includes a second nut and a first through hole 34 formed on the first slider 31. The first through hole 34 extends vertically and corresponds to the first threaded rod 23. The second nut is used to form a threaded connection with the first threaded rod 23 when the first threaded rod 23 passes through the first through hole 34. During operation, when the outer frame 2 and the inner frame 3 slide apart relative to each other, the first slider 31 of the inner frame 3 slides upward, causing the first threaded rod 23 to pass through the first through hole 34, forming a threaded connection between the second nut and the first threaded rod 23. This fastens the first support block 22 and the first slider 31 together, thereby fastening the outer frame 2 and the inner frame 3 together.
[0057] Preferably, the fastening part includes a first support block 22 and a first bolt 24. The first support block 22 is disposed on the upper part of the outer frame 2 and has a second through hole 25. The fastening part includes a first threaded hole on the first slider 31. The first threaded hole is used to form a threaded connection when the first bolt 24 passes through the second through hole 25. During operation, when the outer frame 2 and the inner frame 3 slide apart relative to each other, the first slider 31 of the inner frame 3 slides upward and approaches the first support block 22. Then, the first bolt 24 passes through the second through hole 25 and then rotates into the first threaded hole to form a threaded connection, thereby fastening the first support block 22 and the first slider 31 together, thus fastening the outer frame 2 and the inner frame 3 together.
[0058] Preferably, the fastening part includes a first support block 22 and a second bolt 26. The first support block 22 is disposed on the upper part of the outer frame 2 and has a third through hole 27. The fastening part includes a third nut and a fourth through hole on the first slider 31. The third nut is used to form a threaded connection when the second bolt 26 passes through the third through hole 27 and the fourth through hole. In operation, when the outer frame 2 and the inner frame 3 slide apart relative to each other, the first slider 31 of the inner frame 3 slides upward and approaches the first support block 22. Then, the second bolt 26 passes through the third through hole 27 and the fourth through hole and forms a threaded connection with the third nut, thereby fastening the first support block 22 and the first slider 31 together, thus fastening the outer frame 2 and the inner frame 3 together.
[0059] Preferably, the inner frame 3 is fixedly disposed on the outer periphery of the box body 1; when the outer frame 2 and the inner frame 3 slide apart relative to each other, the outer frame 2 is higher than the top of the box body 1. Thus, when the outer frame 2 and the inner frame 3 slide apart relative to each other, the inner frame 3 remains stationary, while the outer frame 2 slides upward relative to each other, making the outer frame 2 higher than the top of the box body 1, thereby surrounding the uppermost cardboard box and thus stabilizing the structure.
[0060] Preferably, the outer frame 2 and the inner frame 3 are slidably connected vertically: This includes at least one vertical second strip-shaped hole 28, opened on the side of the inner frame 3; and the same number of second sliders 32 as the second strip-shaped hole 28, disposed at the lower part of the outer frame 2, passing through the second strip-shaped hole 28 and abutting against the bottom of the second strip-shaped hole 28. Thus, when the outer frame 2 and the inner frame 3 are not sliding vertically relative to each other, since the inner frame 3 is fixedly disposed on the outer periphery of the housing 1, the outer frame 2 abuts against the bottom of the second strip-shaped hole 28 through the second sliders 32, thereby supporting the outer frame 2 through the second strip-shaped hole 28; when the outer frame 2 and the inner frame 3 slide vertically relative to each other, if there is only one second slider 32, the outer frame 2 can be gripped by hand and pushed upwards, causing the second slider 32 of the outer frame 2 to slide upwards through the second strip-shaped hole 28, thereby causing the outer frame 2 to move upwards.
[0061] Preferably, the fastening structure includes three fastening parts and four fastening parts, the number of which is the same as the number of the second strip holes 28; the three fastening parts are located on the upper part of the inner frame 3, and the four fastening parts are located on the second slider 32; the three fastening parts and four fastening parts are used to form a fastening connection. Thus, when the outer frame 2 and the inner frame 3 slide apart relative to each other, causing the outer frame 2 or the inner frame 3 to be higher than the top of the box 1, thereby enclosing the upper box 1, the three fastening parts and four fastening parts fasten the outer frame 2 and the inner frame 3 together, preventing the outer frame 2 or the inner frame 3 from sliding down again under gravity.
[0062] Preferably, the three fastening parts include a second support block 301 and a second threaded rod 302. The second support block 301 is disposed on the upper part of the inner frame 3, one end of the second threaded rod 302 is disposed on the bottom end of the second support block 301, and the other end of the second threaded rod 302 faces downward. The four fastening parts include a second bearing 201, a fourth nut 202, and a fifth through hole 203 formed on the second slider 32. The fifth through hole 203 extends vertically and corresponds to the second threaded rod 302. The second bearing 201 is fixedly disposed on the bottom end of the second slider 32 and communicates with the fifth through hole 203. The fourth nut 202 is fixedly disposed on the inner ring of the second bearing 201 and communicates with the fifth through hole 203. Since the inner ring and the outer ring of the second bearing 201 are rotatably connected, the fourth nut 202 also has a rotational effect through the inner ring of the second bearing 201. Therefore, when the outer frame 2 and the inner frame 3 slide up and down relative to each other, the second slider 32 of the outer frame 2 slides upward, so that the second threaded rod 302 passes through the fifth through hole 203. At this time, the fourth nut 202 can be rotated to form a threaded connection with the second threaded rod 302, thereby fastening the second support block 301 and the second slider 32 together, thus fastening the outer frame 2 and the inner frame 3 together.
[0063] Preferably, the three fastening parts include a second support block 301 and a second threaded rod 302. The second support block 301 is disposed on the upper part of the inner frame 3, and one end of the second threaded rod 302 is disposed on the bottom end of the second support block 301, with the other end of the second threaded rod 302 facing downwards. The four fastening parts include a fifth nut and a sixth through hole opened on the second slider 32. The sixth through hole extends vertically and corresponds to the second threaded rod 302. The fifth nut is used to form a threaded connection with the second threaded rod 302 when the second threaded rod 302 passes through the sixth through hole. During operation, when the outer frame 2 and the inner frame 3 slide apart relative to each other, the second slider 32 of the outer frame 2 slides upwards, causing the second threaded rod 302 to pass through the sixth through hole, forming a threaded connection between the fifth nut and the second threaded rod 302, thereby fastening the second support block 301 and the second slider 32 together, thus fastening the outer frame 2 and the inner frame 3 together.
[0064] Preferably, there are two second strip-shaped holes 28, which are formed on two sides of the inner frame 3. In this way, when the outer frame 2 and the inner frame 3 slide relative to each other up and down, the second slider 32 passing through the second strip-shaped hole 28 can be directly lifted or pushed up together, so that the force on the outer frame 2 is more even when it slides upward; when the outer frame 2 and the inner frame 3 are not sliding relative to each other, the second slider 32 abuts against the bottom of the second strip-shaped hole 28, which also makes the supporting force supporting the outer frame 2 through the second strip-shaped hole 28 more even.
[0065] Preferably, the two second strip-shaped holes 28 are symmetrically arranged on two sides of the inner frame 3. In this way, when the outer frame 2 and the inner frame 3 slide relative to each other up and down, the second slider 32 passing through the second strip-shaped hole 28 can be directly lifted or pushed up together, so that the force on the outer frame 2 is more even when it slides upward; when the outer frame 2 and the inner frame 3 are not sliding relative to each other, the second slider 32 abuts against the bottom of the second strip-shaped hole 28, which also makes the supporting force supporting the outer frame 2 through the second strip-shaped hole 28 more even; and the symmetrical arrangement is also more aesthetically pleasing.
[0066] In some embodiments, the box body 1 includes a lid 11 and a body 12, the lid 11 being disposed on top of the box body 1 and used to cover the body 12; the outer frame 2 and the inner frame 3 are both fitted around the outer periphery of the body 12.
[0067] Preferably, the lid 11 is rotatably connected to the body 12.
[0068] Optionally, the lid 11 is detachably connected to the body 12.
[0069] In some embodiments, the bottom of the box body 12 is provided with a wheel structure. This can effectively solve the following problems: when faced with multiple layers of cardboard boxes stacked together, it is not convenient to move the boxes. Instead, the upper boxes can only be carried down and then moved to a new location, which is a cumbersome, time-consuming and labor-intensive process.
[0070] In some embodiments, the wheel structure includes a plurality of rotating rollers 41; the plurality of rotating rollers 41 are arranged side by side at the bottom of the box body 12; the rotating rollers 41 are rotatably connected to the bottom of the box body 12. This allows for the efficient movement of individual cartons or stacked cartons, improving work efficiency and reducing labor.
[0071] Preferably, the wheel structure further includes a first groove 42; the first groove 42 is formed at the bottom of the box body 12; a plurality of rotating rollers 41 are arranged side by side inside the first groove 42; the two ends of the rotating rollers 41 are respectively disposed on the two inner sidewalls of the first groove 42 and form a rotatable connection; the rotating rollers 41 protrude from the first groove 42. In this way, single cartons or stacked cartons can be moved effectively, improving work efficiency and reducing labor.
[0072] Preferably, the upper part of the box cover 11 is provided with a second groove 13 for accommodating the rotating roller 41 relative to the upper box body 1. This is because when boxes with rotating rollers 41 at the bottom of the box body 1 are stacked together, the boxes relative to the upper layer are prone to sliding and are not stable enough. Therefore, this design makes the stacking of boxes more stable.
[0073] It should be noted that although the above embodiments have been described herein, this does not limit the scope of patent protection for this utility model. Therefore, any changes and modifications made to the embodiments described herein based on the innovative concept of this utility model, or equivalent structural or procedural transformations made using the content of this utility model's specification and drawings, directly or indirectly applying the above technical solutions to other related technical fields, are all included within the scope of protection of this utility model patent.
Claims
1. A stacked packaging carton, characterized in that: The device includes a housing, an outer frame, an inner frame, and a fastening structure. The outer frame and the inner frame are both fitted around the outer periphery of the housing. The outer frame and the inner frame slide up and down relative to each other. When the outer frame and the inner frame slide apart relative to each other, the outer frame or the inner frame is higher than the top of the housing. A fastening structure is provided between the outer frame and the inner frame to fasten the outer frame and the inner frame.
2. The stacked packaging carton according to claim 1, characterized in that: The outer frame is fixedly installed on the outer periphery of the box. When the outer frame and the inner frame slide apart relative to each other, the inner frame is higher than the top of the box. Alternatively, the inner frame can be fixedly installed on the outer periphery of the box, and when the outer frame and the inner frame slide apart relative to each other, the outer frame is higher than the top of the box.
3. A stacked packaging carton according to claim 1 or 2, characterized in that: The outer frame and the inner frame slide vertically together: It includes at least one vertical first strip hole, which is opened on the side of the outer frame; it also includes the same number of first sliders as the first strip hole, which are disposed in the lower part of the inner frame and pass through the first strip hole and abut against the bottom of the first strip hole.
4. A stacked packaging carton according to claim 3, characterized in that: There are two first strip holes, which are opened on the two sides of the outer frame.
5. A stacked packaging carton according to claim 4, characterized in that: The fastening structure includes a first fastening part and a second fastening part, the number of which is the same as the number of the first strip holes; the first fastening part is located on the upper part of the outer frame, and the second fastening part is located on the first slider; the first fastening part and the second fastening part are used to form a fastening connection.
6. A stacked packaging carton according to claim 5, characterized in that: The fastening part includes a first support block and a first threaded rod. The first support block is disposed on the upper part of the outer frame, one end of the first threaded rod is disposed on the bottom end of the first support block, and the other end of the first threaded rod faces downward. The fastening components include a first bearing, a first nut, and a first through hole on the first slider; the first through hole extends vertically and corresponds to the first threaded rod; the first bearing is fixedly disposed at the bottom end of the first slider and communicates with the first through hole; the first nut is fixedly disposed on the inner ring of the first bearing and protrudes downwards, and communicates with the first through hole.
7. A stacked packaging carton according to claim 5, characterized in that: The fastening part includes a first support block and a first threaded rod. The first support block is disposed on the upper part of the outer frame, one end of the first threaded rod is disposed on the bottom end of the first support block, and the other end of the first threaded rod faces downward. The fastening components include a second nut and a first through hole on the first slider; the first through hole extends vertically and corresponds to the first threaded rod; the second nut is used to form a threaded connection with the first threaded rod when the first threaded rod passes through the first through hole.
8. A stacked packaging carton according to claim 1, characterized in that: The box includes a lid and a body. The lid is placed on top of the box and is used to cover the body. The outer frame and the inner frame are both fitted around the outer periphery of the body.
9. A stacked packaging carton according to claim 8, characterized in that: The bottom of the box or the box body is provided with a wheel structure.
10. A stacked packaging carton according to claim 9, characterized in that: The wheel structure includes multiple rotating rollers; the multiple rotating rollers are arranged side by side at the bottom of the box body; the rotating rollers are rotatably connected to the bottom of the box body.