Foldable plastic box
By combining the adjustment frame, plug-in frame, limiting plate, fixing hole and adjustment hole, the problem of insufficient stability of corrugated folded tube when it is extended is solved, realizing flexible adjustment and stability of plastic box height, and improving reliability and practicality in use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-14
- Publication Date
- 2026-03-27
AI Technical Summary
The existing foldable plastic boxes with corrugated folding tubes are not stable enough when extended and are prone to tilting, which cannot meet the loading needs of items of different heights.
By setting up a combination structure of adjustment frame, plug-in frame, limit plate, fixing hole and adjustment hole, users can adjust the height of the plastic box according to the height requirements of the items, and fix it with fasteners to ensure the stable extension of the corrugated folding tube.
This technology ensures the stability of the plastic box at different heights, improving its reliability and practicality during use, adapting to the loading needs of different items, and reducing the risk of item damage.
Smart Images

Figure CN224045741U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of foldable plastic box, especially to a foldable plastic box. BACKGROUND
[0002] The environmental protection plastic box is a container for containing articles, which is good in environmental protection performance, low in pollution and meets the requirements of environmental protection green packaging, and is often used as a container for daily life, especially as an environmental protection plastic box for loading fruits, because the sales volume of fruits is large, a large number of environmental protection plastic boxes are needed to load the fruits, and the transportation of the fruits is facilitated.
[0003] Through massive retrieval, it is found that the prior art such as application number CN202323416781.6, a foldable and portable environmental protection plastic box, although the foldable tube is arranged to realize the folding of the plastic box, the stability of the foldable tube is insufficient when being stretched and used, and the inclination phenomenon is prone to occur, so further improvement is needed.
[0004] Therefore, it is necessary to provide a foldable plastic box to solve the above technical problems. UTILITY MODEL CONTENTS
[0005] The utility model provides a foldable plastic box, which solves the problems in the background art.
[0006] In order to solve the above technical problems, the utility model provides a foldable plastic box, which comprises a plastic box body, a corrugated folding pipe is arranged on the top surface of the plastic box body, an upper frame body is arranged at the top end of the corrugated folding pipe, an adjusting frame is arranged on the outer surface of the upper frame body, a plug-in frame is arranged on the outer surface of the plastic box body, a limiting plate is plugged into the plug-in frame, a fixed hole is formed in the surface of the adjusting frame, an adjusting hole is formed in the surface of the limiting plate, the limiting plate is fixed with the adjusting frame through the fixed hole and the adjusting hole and the fastener, and a first air hole is formed in the surface of the corrugated folding pipe. This structure design brings many significant effects and functions: the corrugated folding pipe realizes the folding function of the plastic box, is convenient for storage and transportation, and reduces the storage space occupation; the combination of the adjusting frame, the plug-in frame, the limiting plate, the fixed hole and the adjusting hole enables the user to flexibly adjust the height of the plastic box according to the height requirement of the loaded articles, such as reducing the height when loading small fruits and increasing the height when loading large articles, thereby enhancing the versatility of the plastic box; the setting of the first air hole can ensure the air circulation in the box, which is especially suitable for loading perishable articles such as fruits, and can effectively prevent the articles from deteriorating due to the lack of air circulation.
[0007] Preferably, the inner wall of the upper frame body is provided with a clamping groove, a foam protective pad is inserted into the clamping groove, and a second air-permeable hole is formed in the surface of the foam protective pad. The cooperation of the clamping groove and the foam protective pad can provide buffering protection for the loaded articles, effectively reducing the impact force on the articles due to vibration and collision during transportation, and reducing the risk of article damage. The double air-permeable structure formed by the second air-permeable hole and the first air-permeable hole further optimizes the air circulation effect in the box, better controls the humidity and temperature in the box, and prolongs the shelf life of the articles. For example, when transporting fruits over a long distance, the fruit rotting situation can be significantly reduced.
[0008] Preferably, a plurality of limiting plates are provided, and the plurality of limiting plates are respectively inserted on the four sides of the plastic box body. The design greatly enhances the overall stability of the plastic box. When adjusting the height of the plastic box, the limiting plates on the four sides work together to disperse the force and prevent tilting caused by uneven force on one side. When loading articles, the corrugated folded pipe can also be supported from multiple directions to ensure that the plastic box remains stable when carrying heavy objects and prevents deformation or collapse due to excessive local pressure, providing a reliable loading space for the articles.
[0009] Preferably, a plurality of adjustment holes are provided, and the plurality of adjustment holes are equidistantly formed on the surface of the limiting plate. The plurality of equidistantly formed adjustment holes on the limiting plate provide accuracy and flexibility in height adjustment of the plastic box. Users can make detailed adjustments with small height increments based on the actual height of the articles to achieve precise adaptation and meet the loading needs of different articles. For example, different batches of fruits with slightly different heights can find the appropriate combination of adjustment holes to adjust the plastic box to the optimal height, ensuring loading effectiveness and maximizing space utilization.
[0010] Preferably, a plurality of foam protective pads are provided, and the plurality of foam protective pads are respectively clamped on the inner wall of the plastic box body. The plurality of foam protective pads provide comprehensive buffering protection for the articles in the box. During the process of putting and taking out the articles, as well as during transportation, these foam protective pads can wrap the articles, reducing direct friction and collision between the articles and the box wall, especially for some fragile fruits such as strawberries and grapes, which can effectively prevent scratching and crushing, improving the integrity of the articles. At the same time, it can also reduce the mutual extrusion between articles to some extent and protect the quality of the articles.
[0011] Preferably, the bottom end of the plastic box body is provided with a bottom plate, the bottom end of the plastic box body is provided with the bottom plate, and the bottom plate provides a solid support foundation for the entire plastic box. When placed on a plane such as the ground or a shelf, the bottom plate increases the contact area with the contact surface, disperses the weight of the plastic box and its internal items, makes the plastic box more stable when placed, and is not easy to tip over; during transportation, it can also withstand pressure from below, protect the items in the box from bottom impact, and enhance the overall structural strength of the plastic box, prolonging its service life.
[0012] Preferably, the top surface of the upper frame body is movably mounted with a top cover, the top surface of the upper frame body is movably mounted with the top cover, and the sealing function of the plastic box can be realized. After loading the items, the top cover can effectively prevent dust and foreign matter from entering the box, keeping the items clean and sanitary; during transportation, the top cover can fix the items to prevent them from shaking in the box, reducing damage caused by shaking.
[0013] Compared with the related art, the foldable plastic box has the following beneficial effects:
[0014] Compared with the prior art, the foldable plastic box realizes flexible adjustment of the height of the plastic box by setting the combined structure of the adjusting frame, the plug-in frame, the limiting plate, the fixing hole and the adjusting hole. When stretched for use, the user can insert the limiting plate into the plug-in frame according to the actual height requirement of the loaded items, and fix the adjusting frame and the limiting plate by penetrating the fixing hole and the adjusting hole at different positions with the fastener, so as to adjust the stretching degree of the corrugated folding pipe, ensure that the plastic box can remain stable in different height states, effectively solve the problems of insufficient stability and easy tilting of the corrugated folding pipe in the prior art when stretched, and greatly improve the reliability and practicality of the plastic box during use.
[0015] Compared with the prior art, the foldable plastic box realizes flexible adjustment of the height of the plastic box by setting the combined structure of the adjusting frame, the plug-in frame, the limiting plate, the fixing hole and the adjusting hole. When stretched for use, the user can insert the limiting plate into the plug-in frame according to the actual height requirement of the loaded items, and fix the adjusting frame and the limiting plate by penetrating the fixing hole and the adjusting hole at different positions with the fastener, so as to adjust the stretching degree of the corrugated folding pipe, ensure that the plastic box can remain stable in different height states, effectively solve the problems of insufficient stability and easy tilting of the corrugated folding pipe in the prior art when stretched, and greatly improve the reliability and practicality of the plastic box during use.
[0016] The parts not involved in the device are the same as or can be realized by the prior art. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 The structure diagram of the foldable plastic box provided by the utility model;
[0018] Figure 2 The utility model provides a kind of folding plastic box's clamping groove structure schematic view;
[0019] Figure 3 The utility model provides a kind of folding plastic box's front view;
[0020] Figure 4 The utility model provides a kind of folding plastic box's foam protective pad structure schematic view.
[0021] Reference numerals in the drawing:
[0022] 1, plastic box main body;2, corrugated folding pipe;3, upper frame;4, top cover;5, limiting plate;6, adjusting frame;7, plug-in frame;8, bottom plate;9, fixed hole;10, clamping groove;11, first air hole;12, foam protective pad;13, second air hole. Specific implementation
[0023] The utility model is further described below in connection with the drawings and implementation. Example
[0024] Please refer to Figures 1-4 A kind of folding plastic box, including plastic box main body 1, the top surface of the plastic box main body 1 is provided with corrugated folding pipe 2, the top end of the corrugated folding pipe 2 is provided with upper frame 3, the outer surface of the upper frame 3 is provided with adjusting frame 6, the outer surface of the plastic box main body 1 is provided with plug-in frame 7, the plug-in frame 7 is inserted with limiting plate 5 inside, the surface of the adjusting frame 6 is equipped with fixed hole 9, the surface of the limiting plate 5 is equipped with adjusting hole, the limiting plate 5 is fixed with adjusting frame 6 by fastener and adjusting hole and fixed hole 9, the surface of the corrugated folding pipe 2 is equipped with first air hole 11, this structure design brings many aspects significant effect and effect: corrugated folding pipe 2 realizes the folding function of plastic box, is convenient for storage and transportation, reduces storage space occupancy;The combination of adjusting frame 6, plug-in frame 7, limiting plate 5, fixed hole 9 and adjusting hole, so that user can flexibly adjust the height of plastic box according to the height requirement of loading goods, such as lower height when loading small volume fruits, height when loading larger goods, enhance the versatility of plastic box;The setting of first air hole 11 can ensure that the air in the box circulates, especially suitable for loading fruits and other perishable goods, can effectively prevent goods from deteriorating due to air not circulating.
[0025] The working principle of the folding plastic box provided by the utility model is as follows:
[0026] The foldable plastic box realizes its functions mainly through the cooperation between the components during use. When folded and stored, the corrugated folding pipe 2 is in a compressed state, the upper frame 3 is pressed downward, the corrugated folding pipe 2 is shrunk, at this time, the volume of the entire plastic box is greatly reduced, which is convenient for storage and transportation and saves space.
[0027] When it is needed to be unfolded and used, first, the plastic box body 1 is placed on a stable plane, the upper frame 3 is pulled upward, and the corrugated folding pipe 2 is stretched. Then, according to the required height of the plastic box, the limiting plate 5 is inserted into the insertion frame 7 to a suitable depth. Since the limiting plate 5 is provided with a plurality of adjusting holes distributed at equal distances, the adjusting frame 6 is provided with fixing holes 9 on the surface, by selecting appropriate adjusting holes and fixing holes 9, and using fasteners (such as bolts, screws, etc.) to penetrate the two, the limiting plate 5 and the adjusting frame 6 are fixed, so that the corrugated folding pipe 2 is stably supported at the required height, and the phenomenon that the plastic box is inclined or collapsed when loading articles is prevented.
[0028] When loading articles, the foam protective pad 12 inserted in the clamping groove 10 in the inner wall of the upper frame 3 plays a role, the second air permeable hole 13 on the surface cooperates with the first air permeable hole 11 on the corrugated folding pipe 2, and good air circulation effect is realized. At the same time, the foam protective pad 12 can effectively buffer the external force impact received by the articles, and protects the loaded articles. In addition, the bottom plate 8 at the bottom end of the plastic box body 1 provides stable support, the top cover 4 can be installed on the top surface of the upper frame 3, which is used for closing the plastic box, preventing dust and foreign matters from entering, further protecting the internal articles, and plays a role in fixing the articles during transportation, and ensures the stability of the articles in the plastic box.
[0029] Compared with the related art, the foldable plastic box has the following beneficial effects:
[0030] The height of the foldable plastic box is flexibly adjusted through the combined structure of the adjusting frame 6, the plug-in frame 7, the limiting plate 5, the fixing hole 9 and the adjusting hole. When being stretched for use, the user can insert the limiting plate 5 into the plug-in frame 7 according to the actual height requirement of the loaded articles, and fix the adjusting frame 6 with the limiting plate 5 by penetrating the fixing hole 9 and the adjusting hole at different positions with a fastener, so as to adjust the stretching degree of the corrugated folding pipe 2, and ensure that the plastic box can be kept stable in different height states. The problem of insufficient stability and easy tilting of the corrugated folding pipe 2 in the prior art is effectively solved, and the reliability and practicality of the plastic box during use are greatly improved. The height of the foldable plastic box is flexibly adjusted through the combined structure of the adjusting frame 6, the plug-in frame 7, the limiting plate 5, the fixing hole 9 and the adjusting hole. When being stretched for use, the user can insert the limiting plate 5 into the plug-in frame 7 according to the actual height requirement of the loaded articles, and fix the adjusting frame 6 with the limiting plate 5 by penetrating the fixing hole 9 and the adjusting hole at different positions with a fastener, so as to adjust the stretching degree of the corrugated folding pipe 2, and ensure that the plastic box can be kept stable in different height states. The problem of insufficient stability and easy tilting of the corrugated folding pipe 2 in the prior art is effectively solved, and the reliability and practicality of the plastic box during use are greatly improved. Embodiment
[0031] Please refer to Figures 1-4 , based on the first embodiment of the present application, another foldable plastic box is provided in the second embodiment of the present application. The second embodiment is only a preferred mode of the first embodiment, and the implementation of the second embodiment does not affect the separate implementation of the first embodiment.
[0032] On the basis of embodiment one, refer to Figures 1-4 , the inner wall of the upper frame body 3 is provided with a clamping groove 10, the clamping groove 10 is inserted with a foam protective pad 12, and the surface of the foam protective pad 12 is provided with a second air hole 13. The clamping groove 10 and the foam protective pad 12 cooperate to provide buffering protection for the loaded articles, effectively reducing the impact force of the articles caused by vibration and collision during transportation, and reducing the risk of article damage; the second air hole 13 and the first air hole 11 form a double air permeation structure, further optimizing the air circulation effect in the box, better controlling the humidity and temperature in the box, and prolonging the shelf life of the articles. For example, when transporting fruits over a long distance, the fruit rotting situation can be significantly reduced.
[0033] On the basis of embodiment one, refer to Figures 1-4The plurality of limiting plates 5 are respectively inserted on the four sides of the plastic box body 1, which greatly enhances the overall stability of the plastic box. When adjusting the height of the plastic box, the limiting plates 5 on the four sides work together to disperse the force and prevent tilting caused by uneven force on one side. When loading the articles, the corrugated folded pipe 2 can be supported from multiple directions to ensure that the plastic box remains stable when carrying heavy objects and prevents deformation or collapse due to excessive local pressure, providing a reliable loading space for the articles.
[0034] Based on Embodiment One, referring to Figures 1-4 The plurality of adjusting holes are equidistantly arranged on the surface of the limiting plate 5, which gives the plastic box height adjustment accuracy and flexibility. Users can make detailed adjustments with small height increments according to the actual height of the articles to achieve precise adaptation and meet the loading needs of different articles. For example, different batches of fruits with slightly different heights can find the appropriate combination of adjusting holes to adjust the plastic box to the optimal height, ensuring loading effectiveness and fully utilizing space to improve space utilization.
[0035] Based on Embodiment One, referring to Figures 1-4 The plurality of foam protective pads 12 are respectively clamped on the inner wall of the plastic box body 1, which provides comprehensive cushioning protection for the articles in the box. During the process of putting and taking out the articles, as well as during transportation, these foam protective pads 12 can wrap the articles to reduce direct friction and collision between the articles and the box wall, especially for some fragile fruits such as strawberries and grapes, which can effectively prevent scratches and damage, improving the integrity of the articles. At the same time, it can also reduce the mutual extrusion between the articles to some extent, protecting the quality of the articles.
[0036] Based on Embodiment One, referring to Figures 1-4 The plastic box body 1 is provided with a bottom plate 8 at the bottom end, which provides a solid support foundation for the entire plastic box. When placed on a flat surface such as the ground or a shelf, the bottom plate 8 increases the contact area with the contact surface, disperses the weight of the plastic box and its internal articles, and makes the plastic box more stable and less likely to tip over. During transportation, it can also withstand pressure from below, protecting the articles in the box from bottom impact and enhancing the overall structural strength of the plastic box, prolonging its service life.
[0037] Based on Embodiment One, referring to Figures 1-4The upper frame body 3 is movably mounted with the top cover 4 on the top surface of the upper frame body 3, and the sealing function of the plastic box can be realized. After loading the articles, the top cover 4 is covered, which can effectively prevent dust and foreign matters from entering the box, and keep the articles clean and sanitary; during the transportation, the top cover 4 can fix the articles, prevent the articles from shaking in the box, and reduce the damage caused by the shaking.
[0038] It should be noted that all kinds of components used in the present application are standard components and can be purchased from the market. The specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art. The mechanical, parts and electrical equipment adopt the conventional type in the prior art. The circuit connection adopts the conventional connection mode in the prior art. The electrical equipment is in communication with the safe power supply outside, and the specific description is not made here.
[0039] The above is only an embodiment of the present application, and does not limit the patent range of the present application. Any equivalent structure or equivalent process conversion, or direct or indirect application in other related technical fields by using the content of the present application specification and drawings, are also included in the patent protection range of the present application.
Claims
1. A foldable plastic box comprising a plastic box body (1), characterized in that, The top surface of the plastic box body (1) is provided with a corrugated folding pipe (2), the top end of the corrugated folding pipe (2) is provided with an upper frame (3), the outer surface of the upper frame (3) is provided with an adjusting frame (6), the outer surface of the plastic box body (1) is provided with a plug-in frame (7), the plug-in frame (7) is internally plugged with a limiting plate (5), the surface of the adjusting frame (6) is provided with a fixing hole (9), the surface of the limiting plate (5) is provided with an adjusting hole, and the limiting plate (5) is fixed with the adjusting frame (6) through the fixing hole (9) and the adjusting hole by means of fasteners, and the surface of the corrugated folding pipe (2) is provided with a first air hole (11).
2. A collapsible plastic box according to claim 1, wherein, The inner wall of the upper frame (3) is provided with a clamping groove (10), the clamping groove (10) is internally plugged with a foam protective pad (12), and the surface of the foam protective pad (12) is provided with a second air hole (13).
3. The collapsible plastic box of claim 1 wherein, The limiting plate (5) is provided with a plurality of limiting plates (5), and the plurality of limiting plates (5) are respectively plugged on the four sides of the plastic box body (1).
4. The collapsible plastic box of claim 1 wherein, The adjusting hole is provided with a plurality of adjusting holes, and the plurality of adjusting holes are equidistantly arranged on the surface of the limiting plate (5).
5. The collapsible plastic box of claim 2 wherein, The foam protective pad (12) is provided with a plurality of foam protective pads (12), and the plurality of foam protective pads (12) are respectively clamped on the inner wall of the plastic box body (1).
6. The collapsible plastic box of claim 1 wherein, The bottom end of the plastic box body (1) is provided with a bottom plate (8).
7. The collapsible plastic box of claim 1 wherein, The top surface of the upper frame (3) is movably provided with a top cover (4).
Citation Information
Patent Citations
Foldable portable environment-friendly plastic box
CN221189589U