Breathable packaging bag
By setting up the support structure of the bottom frame, middle frame and top frame in the breathable packaging bag, combined with the design of the traction rope and hook part, the collapse problem of the breathable packaging bag during loading and transportation is solved, and the safety of agricultural products is improved and breathability, and simplifies the use and storage process of packaging bags.
Patent Information
- Application Number
- CN202411614943.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-13
- Publication Date
- 2025-01-10
AI Technical Summary
When loading and transporting agricultural products, existing breathable packaging bags are prone to collapse and cause agricultural products to be subjected to squeeze pressure, causing damage and reduced shelf life, and it is difficult to provide effective support during loading and transport, affecting safety and portability.
A breathable packaging bag including a bottom frame, a middle frame and a top frame is designed. By providing support rods and driving components on the packaging bag body, it provides circumferential support to avoid collapse, and tension is provided through the traction rope and hook-shaped part. , reduce the difficulty of use and improve loading efficiency, while installing a compartment and a drawstring to ensure breathability and safety.
It effectively avoids the squeeze of agricultural products during stacking and transportation, extends the shelf life, improves the service life and loading efficiency of packaging bags, and is easy to store, improving safety and breathability during transportation.
Smart Images
Figure CN119284345A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of packaging bags, in particular to a breathable packaging bag. Background Art
[0002] In the long-distance transportation of agricultural products, in order to ensure the respiration of agricultural products during transportation, plastic baskets or breathable packaging bags are usually used to pack agricultural products. Since plastic baskets are harder than breathable packaging bags, they are easy to damage the appearance of agricultural products during loading and transportation. In addition, the size of plastic baskets is fixed, and the storage space occupied is large, which is not conducive to the storage of empty baskets. Breathable packaging bags are a specially designed packaging material used for items that require ventilation and ventilation, such as agricultural products, food and certain industrial products. Breathable packaging bags are mainly used to protect products from external pollution and physical damage. Allows gas exchange inside and outside the packaging bag, thereby extending the shelf life of the product or maintaining the gas environment required for the goods; although the breathable packaging bag is easy to fold, the size after folding is reduced, which is convenient for the storage of empty packaging bags; however, the breathable packaging bag has no circumferential support. When loading and transporting agricultural products, the circumference of the breathable packaging bag is prone to collapse and squeeze the agricultural products inward, causing the agricultural products to be damaged by the squeezing force or generate high temperature due to poor air exhaust, which in turn causes the shelf life of the agricultural products to be reduced. In addition, the breathable packaging bag has no circumferential force-bearing structure, which is not conducive to on-site loading, handling and transfer. Summary of the invention
[0003] The purpose of the present invention is to provide a breathable packaging bag to solve the problem that during the loading and transportation of agricultural products, the circumferential direction of the breathable packaging bag collapses and squeezes the agricultural products inward, causing the internal agricultural products to be damaged by the squeezing force or the poor exhaust and high temperature.
[0004] To achieve the above object, the present invention provides the following technical solutions:
[0005] A breathable packaging bag comprises a packaging bag body and a lifting strap, wherein an opening is provided at the upper end of the packaging bag body, both ends of the lifting strap are connected to the packaging bag, and the lifting strap is arranged on the upper side of the packaging bag body; specifically, a top frame and a bottom frame are respectively provided at the upper and lower ends of the packaging bag body, and at least one middle frame is provided between the top frame and the bottom frame, the outer wall of the packaging bag body is connected to the inner wall of the middle frame, and a plurality of support rods are rotatably connected to the bottom frame and the middle frame, and a plurality of support rods are provided on the plurality of support rods, one end of the driving assembly is connected to the support rod, and the other end is connected to the top frame or the middle frame, and the driving assembly is designed so that when the distance between the middle frame and the bottom frame or the distance between the middle frame and the top frame increases, the driving assembly drives the support rod to rotate, and when the distance between the middle frame and the bottom frame or the distance between the middle frame and the top frame is maximum, the driving assembly drives the support rod to rotate to vertical.
[0006] By arranging a bottom frame, a middle frame and a top frame, circumferential support is provided for the packaging bag body, so as to prevent the packaging bag body from circumferentially collapsing when loading agricultural products and squeezing the agricultural products inward, causing the internal agricultural products to be damaged by the squeezing force or generate high temperature due to poor ventilation; the collision and squeezing of agricultural products during stacking or transportation are reduced, while the air permeability and safety of the internal agricultural products are ensured; moreover, the setting of the middle frame provides a force point for the side wall position of the packaging bag body, which is convenient for handling and transfer at the loading site.
[0007] Furthermore, by rotating the connecting support rods on the bottom frame and the middle frame, when loading goods, the support rods are rotated to a vertical state, and the middle frame or the top frame is vertically downward due to the gravity of itself or the agricultural products. The support rods in the vertical state provide an upward support force for the middle frame and the top frame, thereby preventing the packaging bag body from collapsing in the vertical direction, thereby ensuring the vertical accommodation size of the packaging bag body when loading agricultural products. When there is no need to load goods, the support rods are rotated to a horizontal state, the middle frame and the top frame lose the supporting effect of the support rods, and the packaging bag body collapses in the vertical direction, the overall height of the breathable packaging bag is reduced, the storage volume of the breathable packaging bag is saved, the storage of the breathable packaging bag is convenient, and space is saved.
[0008] Furthermore, through the arrangement of the support rod and the driving assembly, after the packaging bag body is loaded with agricultural products, due to the gravity of the agricultural products acting on the bottom frame, when the lifting strap is pulled upward, the top frame and the middle frame move upward with the packaging bag body, and the distance between the top frame and the middle frame, and the distance between the middle frame and the bottom frame gradually increase. The tension on the lifting strap drives the support rod to rotate through the driving assembly until the distance between the middle frame and the bottom frame, and the distance between the middle frame and the top frame increase to the maximum distance, and the support rod rotates to a vertical state, thereby avoiding the need for construction workers to rotate the support rods to a vertical state one by one when the packaging bag body is loaded with agricultural products; the difficulty of using the breathable packaging bag is reduced, the unfolding time of the breathable packaging bag is saved, and it is beneficial to improve the loading efficiency.
[0009] Preferably, the driving assembly includes a No. 2 rivet and a traction rope, a No. 1 mounting groove is provided on the upper side of the bottom frame, a No. 2 mounting groove and a No. 3 mounting groove are respectively provided on the upper and lower sides of the middle frame, and a No. 4 mounting groove is provided on the lower side of the top frame, and a plurality of No. 1 rivets are provided in the No. 1 mounting groove and the No. 3 mounting groove, and the support rod is rotatably connected to the bottom frame or the middle frame through the No. 1 rivet, and a plurality of No. 2 rivets are provided in the No. 2 mounting groove and the No. 4 mounting groove, and the number of the plurality of No. 2 rivets is the same as that of the plurality of support rods and corresponds one to one, and a sliding groove is provided on the side wall of the support rod, one end of the traction rope is connected to the No. 2 rivet, and the other end is slidably connected to the sliding groove, and when the support rod is in a vertical state, the axis of the traction rope is vertical.
[0010] After the agricultural products are loaded in the packaging bag, the gravity of the agricultural products acts on the bottom frame. When the lifting strap is pulled upward, the top frame moves upward with the lifting strap, and the No. 2 rivet in the No. 4 mounting groove moves upward with the top frame, and the traction rope between the top frame and the middle frame moves upward with the top frame. During the process, the upper end of the traction rope rotates relative to the No. 2 rivet, and the lower end of the traction rope slides with the sliding groove. The support rod between the top frame and the middle frame is pulled by the traction rope and rotates around the No. 1 rivet until the distance between the top frame and the middle frame increases to the maximum distance, the axial line of the traction rope is vertical, and the support rod between the top frame and the middle frame is in a vertical state; after the distance between the top frame and the middle frame increases to the maximum distance, the lifting strap continues to be pulled, and the middle frame moves upward with the lifting strap The No. 2 rivet in the No. 2 mounting groove moves upward with the middle frame, and the traction rope between the middle frame and the bottom frame moves upward with the top frame. During the process, the upper end of the traction rope rotates relative to the No. 2 rivet, and the lower end of the traction rope slides with the sliding groove. The support rod between the middle frame and the bottom frame is pulled by the traction rope and rotates around the No. 1 rivet until the distance between the middle frame and the bottom frame increases to the maximum distance, the axis of the traction rope is vertical, and the support rod between the middle frame and the bottom frame is in a vertical state; thereby completing the unfolding of the breathable packaging bag, avoiding the need for construction personnel to rotate the support rods one by one to a vertical state when the packaging bag body is loaded with agricultural products; reducing the difficulty of using the breathable packaging bag, saving the unfolding time of the breathable packaging bag, and helping to improve the loading efficiency. At the same time, through the setting of the traction rope, when the packaging bag body is loaded with agricultural products, the lifting belt is pulled, and the tension between the top frame, the middle frame and the top frame is borne by the traction rope, thereby preventing the packaging bag body from being affected by the gravity of the agricultural products inside, thereby ensuring the service life of the packaging bag body; at the same time, it prevents the packaging bag body from collapsing circumferentially and squeezing the agricultural products inward when loading agricultural products, thereby reducing the squeezing of agricultural products during stacking or transportation and improving the safety of agricultural products during transportation.
[0011] Furthermore, by setting the No. 1 mounting slot, the No. 2 mounting slot, the No. 3 mounting slot and the No. 4 mounting slot, when the breathable packaging bag is in the unfolded state, the upper and lower ends of the support rod extend into the No. 1 mounting slot and the No. 2 mounting slot, the No. 3 mounting slot and the No. 4 mounting slot respectively, and the support rod not only provides support in the vertical direction, but also provides lateral anti-bending effect, thereby avoiding lateral deviation between the bottom frame, the middle frame and the top frame when the breathable packaging bag is subjected to lateral force, thereby preventing the agricultural products in the packaging bag body from being squeezed due to lateral displacement, thereby ensuring the outer dimensions of the breathable packaging bag; at the same time, combined with the tensile resistance of the traction rope, when the breathable packaging bag is twisted, the traction rope is in a taut state, the support rod is in a vertical state, the support rod limits the minimum spacing between the bottom frame, the middle frame and the top frame, and the breathable packaging bag cannot be twisted, thereby avoiding the inward squeezing force caused by the twisting of the packaging bag body, reducing the squeezing of agricultural products during stacking or transportation, and improving the safety of agricultural products during transportation.
[0012] Preferably, No. 3 rivets are provided in the No. 2 mounting groove and the No. 4 mounting groove, and the support rod comprises a support portion and a hook-shaped portion, the support portion is rotatably connected to the bottom frame or the middle frame, the hook-shaped portion is located on the upper side of the support portion, and the hook-shaped portion is in a "7" shape. An avoidance opening is formed between the support portion and the hook-shaped portion, and the minimum spacing of the avoidance opening is greater than the diameter of the No. 3 rivet. The avoidance opening faces the side where the sliding groove is opened, and a support limit groove is provided on the lower side of the avoidance opening, and a lifting limit groove is provided on the upper side of the avoidance opening. When the support rod is in a vertical state, the central axes of the support limit groove, the lifting limit groove, the No. 1 rivet and the No. 3 rivet are located in the same vertical plane.
[0013] When loading agricultural products, the lifting belt is pulled upward, and the distances between the top frame and the middle frame, and between the middle frame and the bottom frame gradually increase. The support rod is subjected to the pulling force of the traction rope, and the support rod rotates around the No. 1 rivet. During the rotation of the support rod, the No. 3 rivet enters the avoidance gap until the distance between the top frame and the middle frame, and the distance between the middle frame and the bottom frame increase to the maximum distance. The traction rope is in a taut state, the support rod is in a vertical state, and the central axes of the support limiting groove, the lifting limiting groove, the No. 1 rivet and the No. 3 rivet are located in the same vertical plane; when the breathable packaging bag is in the placed state, the No. 3 rivet enters the support limiting groove, and the support rod in the vertical state provides upward supporting force for the middle frame and the top frame, thereby preventing the packaging bag body from collapsing in the vertical direction. The bag body is collapsed, thereby ensuring the vertical accommodation size of the packaging bag body when loading agricultural products; through the arrangement of the hook-shaped part, when the packaging bag body is loaded with agricultural products, the lifting belt is pulled, and the No. 3 rivet enters the lifting limit groove, and the tension between the top frame, the middle frame and the top frame is distributed to the traction rope and the support rod, so as to avoid the packaging bag body being affected by the gravity of the internal agricultural products, thereby ensuring the service life of the packaging bag body; at the same time, the support rod shares part of the pulling force, reduces the tensile strength requirement of the traction rope, is conducive to reducing the wire diameter of the traction rope, is conducive to the bending of the traction rope, and avoids the problem of difficulty in bending the traction rope due to the excessive diameter of the traction rope, thereby affecting the storage of the breathable packaging bag; improves the convenience of the breathable packaging bag, and reduces the overall weight of the breathable packaging bag.
[0014] Preferably, the No. 1 installation slot, the No. 2 installation slot, the No. 3 installation slot and the No. 4 installation slot are all provided with storage magnetic blocks, and the multiple storage magnetic blocks are linearly distributed in the vertical direction, and the magnetic poles of adjacent storage magnetic blocks in the same vertical direction are opposite.
[0015] By setting the storage magnetic blocks, when storing the breathable packaging bag, the storage magnetic blocks in the No. 1 installation slot and the No. 2 installation slot are attracted to each other, the storage magnetic blocks in the No. 3 installation slot and the No. 4 installation slot are attracted to each other, and the storage magnetic blocks in the No. 3 installation slot and the No. 2 installation slot are attracted to each other, the upper end surface of the bottom frame is in contact with the lower end surface of the middle frame, and the lower end surface of the top frame is in contact with the upper end surface of the middle frame, so that the overall height of the breathable packaging bag is reduced, and the storage volume of the breathable packaging bag is saved. Since the multiple storage magnetic blocks are attracted to each other, the separation of the bottom frame, the middle frame and the top frame during transportation and the need for re-compression and storage are avoided, the shape stability of the breathable packaging bag in the storage state is ensured, and the storage of the breathable packaging bag is convenient; at the same time, when loading agricultural products, the lifting belt is pulled upward, and the gravity of the agricultural products can overcome the magnetic attraction between adjacent storage magnetic blocks, so that the storage magnetic blocks are avoided from affecting the unfolding of the breathable packaging bag.
[0016] Preferably, a reed is provided on the support rod. The reed is located on the opening side of the avoidance opening. The lower end of the reed is fixedly connected to the support rod, and the upper end is unrestrained. The reed is arc-shaped, and the minimum distance between the reed and the avoidance opening is less than the diameter of the No. 3 rivet.
[0017] Through the arrangement of the reed, when the breathable packaging bag is in the placed state, the No. 3 rivet enters the support limit groove. When the No. 3 rivet enters the support limit groove, even if the traction rope breaks or the support rod swings laterally, since the minimum distance between the reed and the avoidance opening is less than the diameter of the No. 3 rivet, the reed plays a role in restricting the offset of the support rod, avoiding the No. 3 rivet from脱出 the avoidance opening due to the lateral swing of the support rod. During storage, the operator only needs to rotate the support rod and push the No. 3 limit rod out of the avoidance opening, ensuring the stability of the support rod.
[0018] Preferably, a plurality of compartments are provided in the packaging bag body. The number of the plurality of compartments is the same as and corresponds to the number of the middle frames one by one. The plurality of compartments are all horizontally arranged. The distance between the lower end surfaces of the plurality of compartments and the upper end surfaces of the corresponding middle frames is 0-10 mm, and the plurality of compartments are all located above the corresponding middle frames. Zippers are provided on the plurality of compartments, and the path of the zipper is in a "匚" shape.
[0019] Through the arrangement of the compartments, when loading agricultural products into the packaging bag body, first load the space at the bottom layer, then close the zipper on the first bottom compartment, and then load the space on the first bottom compartment, and so on to load the spaces in each compartment, thereby completing the loading of the entire breathable packaging bag. Among them, when loading the spaces in each compartment, a reserved space of preferably 5-10 mm is provided at the top of each compartment, which is beneficial to avoiding the extrusion of the crops between the compartments in the vertical direction and causing damage to the crops, thereby reducing the extrusion of the agricultural products during stacking or transportation and improving the safety and breathability of the agricultural products during transportation.
[0020] Furthermore, since the middle frame is made of hard plastic or metal material, to avoid the agricultural products from colliding with the middle frame and being damaged during loading and transportation, therefore, by setting the distance between the lower end surfaces of the plurality of compartments and the upper end surfaces of the corresponding middle frames to 0-10 mm, it is beneficial to avoid the collision between the agricultural products and the middle frame during stacking or transportation, thereby improving the safety of the agricultural products during transportation.
[0021] Preferably, the packaging bag body includes an inner layer, an outer layer and a tightening belt, the inner layer is located on the inner side of the outer layer, the inner layer and the outer layer are connected to the bottom frame, the middle frame, the top frame and the partition, the inner layer and the outer layer are both mesh surfaces, the mesh diameter range is 1 to 3 mm, the tightening belt is elastic, and the initial length of the tightening belt is smaller than the circumference of the inner wall of the middle frame, the tightening belt is arranged between the outer layer and the inner layer, and at least one tightening belt is arranged between adjacent partitions.
[0022] By configuring the packaging bag body to have an inner layer, an outer layer and a tightening belt, the agricultural products in the packaging bag body can be connected to the outside through the side wall of the packaging bag body to breathe and dissipate heat; since the initial length of the tightening belt is smaller than the circumference of the inner wall of the middle frame, when the breathable packaging bag is stored, the tightening belt is tightened into the breathable packaging bag, and drives the inner layer and the outer layer to be tightened into the breathable packaging bag, thereby avoiding the packaging bag body extending out of the middle frame when the breathable packaging bag is stored, causing incomplete fitting between the bottom frame, the middle frame and the top frame, resulting in the bottom frame, the middle frame and the top frame being detached during transportation of the breathable packaging bag and needing to be compressed and stored again, thereby ensuring the shape stability of the breathable packaging bag in the stored state and facilitating the storage of the breathable packaging bag.
[0023] Compared with the prior art, the present invention has the following beneficial effects:
[0024] 1. By setting the bottom frame, the middle frame and the top frame, the circumferential support is provided for the circumference of the packaging bag body, so as to prevent the packaging bag body from collapsing in the circumference when loading agricultural products and squeezing the agricultural products inward, causing the internal agricultural products to be damaged by the squeezing force or the poor exhaust and high temperature; it reduces the collision and squeezing of agricultural products during stacking or transportation, and at the same time ensures the air permeability and safety of the internal agricultural products.
[0025] 2. By arranging rotatably connected support rods on the bottom frame and the middle frame, when loading goods, the support rods are rotated to a vertical state. The support rods in the vertical state provide upward supporting force for the middle frame and the top frame, thereby avoiding the collapse of the packaging bag body in the vertical direction, thereby ensuring the vertical accommodation size of the packaging bag body when loading agricultural products; when there is no need to load goods, the support rods are rotated to a horizontal state, the packaging bag body collapses in the vertical direction, the overall height of the breathable packaging bag is reduced, the storage volume of the breathable packaging bag is saved, the storage of the breathable packaging bag is convenient, and space is saved.
[0026] 3. Through the setting of the traction rope and the hook-shaped part, when the packaging bag body is loaded with agricultural products, the lifting belt is pulled, and the No. 3 rivet enters the lifting limit groove, and the tension between the top frame, the middle frame and the top frame is distributed to the traction rope and the support rod, so as to avoid the packaging bag body being affected by the gravity of the agricultural products inside, thereby ensuring the service life of the packaging bag body. At the same time, it prevents the packaging bag body from collapsing in the circumference when loading agricultural products and squeezing the agricultural products inward, thereby reducing the squeezing of agricultural products during stacking or transportation and improving the safety of agricultural products during transportation.
[0027] 4. By arranging interlayers in the packaging bag body, when loading the space in each interlayer, a reserved space of 5-10 mm is preferably provided at the top of each interlayer, which is helpful to avoid the damage of crops caused by squeezing in the vertical direction between the interlayers, thereby reducing the squeezing of agricultural products during stacking or transportation, and improving the safety and air permeability of agricultural products during transportation. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 This is a schematic diagram of the overall structure of a breathable packaging bag of the present invention;
[0029] Figure 2 It is a full-section isometric view of a breathable packaging bag of the present invention;
[0030] Figure 3 It is a front view of a breathable packaging bag of the present invention;
[0031] Figure 4 for Figure 3 Sectional view at AA in the middle;
[0032] Figure 5 for Figure 4 The enlarged schematic diagram of D in FIG.
[0033] Figure 6 This is a schematic diagram of a breathable packaging bag of the present invention in a recycling state;
[0034] Figure 7 for Figure 6 Sectional view at the middle BB;
[0035] Figure 8 for Figure 7 The enlarged view of point E in the figure;
[0036] Fig. 9 This is a schematic diagram of a breathable packaging bag of the present invention when it is completely recycled;
[0037] Fig.10 for Fig. 9 Sectional view at CC;
[0038] Fig.11 for Fig.10 The enlarged view of F in the figure;
[0039] Fig.12 This is a schematic diagram of the overall structure of a support rod and a traction rope in a breathable packaging bag of the present invention;
[0040] Fig.13 The present invention is a schematic structural diagram of a packaging bag body in a breathable packaging bag.
[0041] In the figure: 1. packaging bag body; 101. inner layer; 102. drawstring; 103. outer layer; 2. lifting strap; 3. partition; 4. top cover; 5. zipper; 6. bottom frame; 601. installation slot No. 1; 7. middle frame; 701. installation slot No. 2; 702. installation slot No. 3; 8. top frame; 801. installation slot No. 4; 9. support rod; 901. support part; 9011. support limit slot; 902. hook-shaped part; 9021. lifting limit slot; 903. avoidance opening; 904. sliding slot; 10. rivet No. 1; 11. traction rope; 12. rivet No. 2; 13. spring; 14. storage magnetic suction block; 15. rivet No. 3. DETAILED DESCRIPTION
[0042] See also Figures 1 to 13 The present invention provides a breathable packaging bag, and the technical solution is as follows:
[0043] See also Figure 1 , Figure 3 and Figure 5 A breathable packaging bag comprises a packaging bag body 1 and a lifting strap 2, the upper end of the packaging bag body 1 is provided with an opening, both ends of the lifting strap 2 are connected to the packaging bag body 1, and the lifting strap 2 is arranged on the upper side of the packaging bag body 1; specifically, a top frame 8 and a bottom frame 6 are respectively provided at the upper and lower ends of the packaging bag body 1, and three middle frames 7 are provided between the top frame 8 and the bottom frame 6, the top frame 8, the middle frame 7 and the bottom frame 6 are all square, the outer wall of the packaging bag body 1 is connected to the inner wall of the middle frame 7, 16 support rods 9 are rotatably connected to the bottom frame 6 and the middle frame 7, and 4 support rods 9 are respectively provided on each side of the bottom frame 6 and the middle frame 7.
[0044] See also Figures 3 to 5, multiple support rods 9 are each provided with a driving assembly, wherein the driving assembly includes a No. 2 rivet 12 and a traction rope 11, a No. 1 mounting groove 601 is provided on the upper side of the bottom frame 6, a No. 2 mounting groove 701 and a No. 3 mounting groove 702 are respectively provided on the upper and lower sides of the middle frame 7, a No. 4 mounting groove 801 is provided on the lower side of the top frame 8, and a plurality of No. 1 rivets 10 are provided in the No. 1 mounting groove 601 and the No. 3 mounting groove 702, the support rod 9 is rotatably connected to the bottom frame 6 or the middle frame 7 through the No. 1 rivet 10, and the No. 2 mounting groove 801 is provided on the lower side of the top frame 8. The groove 701 and the fourth installation groove 801 are both provided with a plurality of No. 2 rivets 12, and the plurality of No. 2 rivets 12 are the same in number and correspond one to one with the plurality of support rods 9. A sliding groove 904 is provided on the side wall of the support rod 9. One end of the traction rope 11 is connected to the No. 2 rivet 12, and the other end is slidably connected to the sliding groove 904. When the support rod 9 is in a vertical state, the axis of the traction rope 11 is vertical; the No. 2 installation groove 701 and the No. 4 installation groove 801 are both provided with a No. 3 rivet 15. The support rod 9 includes a support portion The support portion 901 and the hook portion 902 are rotatably connected to the bottom frame 6 or the middle frame 7, the hook portion 902 is located on the upper side of the support portion 901, and the hook portion 902 is in a "7" shape. An avoidance opening 903 is formed between the support portion 901 and the hook portion 902, and the minimum spacing of the avoidance opening 903 is greater than the diameter of the No. 3 rivet 15. The avoidance opening 903 faces the side where the sliding groove 904 is opened, and a support limiting groove 9011 is provided on the lower side of the avoidance opening 903. The upper side of the avoidance opening 903 is provided with a support limiting groove 9011. A lifting limit groove 9021 is provided on the side. When the support rod 9 is in a vertical state, the central axes of the support limit groove 9011, the lifting limit groove 9021, the No. 1 rivet 10 and the No. 3 rivet 15 are located in the same vertical plane; the No. 1 installation groove 601, the No. 2 installation groove 701, the No. 3 installation groove 702 and the No. 4 installation groove 801 are all provided with storage magnetic blocks 14, and the multiple storage magnetic blocks 14 are linearly distributed in the vertical direction, and the magnetic poles of adjacent storage magnetic blocks 14 in the same vertical direction are opposite.
[0045] See also Fig.12 A reed 13 is provided on the support rod 9, and the reed 13 is located on the opening side of the avoidance opening 903. The lower end of the reed 13 is fixedly connected to the support rod 9, and the upper end is unconstrained. The reed 13 is arc-shaped, and the minimum distance between the reed 13 and the avoidance opening 903 is less than the diameter of the No. 3 rivet 15.
[0046] See also Figure 2 and Fig.13, the packaging bag body 1 is provided with a plurality of compartments 3. The number of the plurality of compartments 3 is the same as and corresponds one by one to the number of the middle frames 7. The plurality of compartments 3 are all horizontally arranged. The distance between the lower end surfaces of the plurality of compartments 3 and the upper end surfaces of the corresponding middle frames 7 is 0-10 mm, and the plurality of compartments 3 are all located above the corresponding middle frames 7. The upper end of the packaging bag body 1 is further provided with a top cover 4. Zippers 5 are provided on the plurality of compartments 3 and the top cover 4. The path of the zipper 5 is in a "C" shape; the packaging bag body 1 includes an inner layer 101, an outer layer 103 and a drawstring 102. The inner layer 101 is located inside the outer layer 103. Both the inner layer 101 and the outer layer 103 are connected to the bottom frame 6, the middle frame 7, the top frame 8 and the compartments 3. Both the inner layer 101 and the outer layer 103 are mesh surfaces, and the diameter range of the mesh holes is 1-3 mm. The drawstring 102 is elastic, and the initial length of the drawstring 102 is less than the inner wall circumference of the middle frame 7. The drawstring 102 is arranged between the outer layer 103 and the inner layer 101, and at least one drawstring 102 is provided between adjacent compartments 3.
[0047] Working principle:
[0048] Please refer to Figures 9 to 11 , during storage, the storage magnetic attraction blocks 14 in the first installation groove 601 and the second installation groove 701 attract each other, the storage magnetic attraction blocks 14 in the third installation groove 702 and the fourth installation groove 801 attract each other, and the storage magnetic attraction blocks 14 in the third installation groove 702 and the second installation groove 701 attract each other. The upper end surface of the bottom frame 6 is attached to the lower end surface of the middle frame 7, and the lower end surface of the top frame 8 is attached to the upper end surface of the middle frame 7. At this time, the vertical dimension of the breathable packaging bag is the smallest, and the support rod 9 is in a horizontal state.
[0049] Please refer to Figures 6 to 8When loading agricultural products, first load the space at the bottom, then close the zipper 5 on the first interlayer 3 at the bottom, and when the lifting belt 2 is pulled upward, the top frame 8 moves upward with the lifting belt 2, and the No. 2 rivet 12 in the No. 4 mounting groove 801 moves upward with the top frame 8, and the traction rope 11 between the top frame 8 and the middle frame 7 moves upward with the top frame 8. During the process, the upper end of the traction rope 11 rotates relative to the No. 2 rivet 12, and the lower end of the traction rope 11 slides with the sliding groove 904, and the support rod 9 between the top frame 8 and the middle frame 7 is pulled by the traction rope 11 and rotates around the No. 1 rivet 10 until the top frame When the spacing between the top frame 8 and the middle frame 7 increases to the maximum spacing, the axis line of the traction rope 11 is vertical, and the support rod 9 between the top frame 8 and the middle frame 7 is in a vertical state; during the process, the support rod 9 rotates around the No. 1 rivet 10, and during the rotation of the support rod 9, the No. 3 rivet 15 enters the avoidance gap until the spacing between the top frame 8 and the middle frame 7, and the spacing between the middle frame 7 and the bottom frame 6 increase to the maximum spacing, the traction rope 11 is in a taut state, the support rod 9 is in a vertical state, and the central axes of the support limit groove 9011, the lifting limit groove 9021, the No. 1 rivet 10 and the No. 3 rivet 15 are located in the same vertical plane.
[0050] After the distance between the top frame 8 and the middle frame 7 increases to the maximum distance, continue to pull the lifting belt 2, the middle frame 7 moves upward with the lifting belt 2, the No. 2 rivet 12 in the No. 2 mounting groove 701 moves upward with the middle frame 7, and the traction rope 11 between the middle frame 7 and the bottom frame 6 moves upward with the top frame 8. During the process, the upper end of the traction rope 11 and the No. 2 rivet 12 rotate relative to each other, and the lower end of the traction rope 11 slides with the sliding groove 904. The support rod 9 between the middle frame 7 and the bottom frame 6 is pulled by the traction rope 11 and rotates around the No. 1 rivet 10 until the distance between the middle frame 7 and the bottom frame 6 increases to the maximum distance, the axis of the traction rope 11 is vertical, and the support rod 9 between the middle frame 7 and the bottom frame 6 is in a vertical state
[0051] Please refer to Figure 3 and Figure 5 When the breathable packaging bag is in the placed state, the upper and lower ends of the support rod 9 extend to the No. 1 mounting groove 601 and the No. 2 mounting groove 701, the No. 3 mounting groove 702 and the No. 4 mounting groove 801 respectively, and the No. 3 rivet 15 enters the support limit groove 9011. The support rod 9 not only provides support in the vertical direction, but also provides lateral anti-bending effect.
[0052] A specific embodiment of the present invention is described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above described embodiment. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments without departing from the principles and ideas of the present invention should still fall within the scope of protection of the present invention.
Claims
1. A breathable packaging bag, comprising a packaging bag body (1) and a lifting strap (2), wherein the upper end of the packaging bag body (1) is provided with an opening, both ends of the lifting strap (2) are connected to the packaging bag body (1), and the lifting strap (2) is provided on the upper side of the packaging bag body (1), characterized in that: The upper and lower ends of the packaging bag body (1) are respectively provided with a top frame (8) and a bottom frame (6), and at least one middle frame (7) is provided between the top frame (8) and the bottom frame (6). The outer wall of the packaging bag body (1) is connected to the inner wall of the middle frame (7). The bottom frame (6) and the middle frame (7) are both rotatably connected with a plurality of support rods (9). A driving assembly is provided on the plurality of support rods (9), one end of the driving assembly is connected to the support rod (9), and the other end is connected to the top frame (8) or the middle frame (7). The driving assembly is designed such that when the distance between the middle frame (7) and the bottom frame (6) or the distance between the middle frame (7) and the top frame (8) increases, the driving assembly drives the support rod (9) to rotate, and when the distance between the middle frame (7) and the bottom frame (6) or the distance between the middle frame (7) and the top frame (8) is maximum, the driving assembly drives the support rod (9) to rotate to a vertical position.
2. A breathable packaging bag according to claim 1, characterized in that: The driving assembly comprises a No. 2 rivet (12) and a traction rope (11); a No. 1 mounting groove (601) is provided on the upper side of the bottom frame (6); a No. 2 mounting groove (701) and a No. 3 mounting groove (702) are respectively provided on the upper and lower sides of the middle frame (7); a No. 4 mounting groove (801) is provided on the lower side of the top frame (8); a plurality of No. 1 rivets (10) are provided in the No. 1 mounting groove (601) and the No. 3 mounting groove (702); the support rod (9) is connected to the bottom frame (6) or the middle frame (7) through the No. 1 rivet (10); The frame (7) is rotatably connected, and a plurality of No. 2 rivets (12) are provided in the No. 2 mounting groove (701) and the No. 4 mounting groove (801). The number of the plurality of No. 2 rivets (12) is the same as that of the plurality of support rods (9) and they correspond one to one. A sliding groove (904) is provided on the side wall of the support rod (9). One end of the traction rope (11) is connected to the No. 2 rivet (12), and the other end is slidably connected to the sliding groove (904). When the support rod (9) is in a vertical state, the axis of the traction rope (11) is vertical.
3. A breathable packaging bag according to claim 2, characterized in that: The No. 2 mounting groove (701) and the No. 4 mounting groove (801) are both provided with a No. 3 rivet (15); the support rod (9) comprises a support portion (901) and a hook portion (902); the support portion (901) is rotatably connected to the bottom frame (6) or the middle frame (7); the hook portion (902) is located on the upper side of the support portion (901); the hook portion (902) is in the shape of a letter "7"; an avoidance opening (903) is formed between the support portion (901) and the hook portion (902); the avoidance opening (903) ) is greater than the diameter of the No. 3 rivet (15), the avoidance opening (903) faces the side where the sliding groove (904) is opened, the lower side of the avoidance opening (903) is provided with a support limit groove (9011), and the upper side of the avoidance opening (903) is provided with a lifting limit groove (9021), when the support rod (9) is in a vertical state, the central axes of the support limit groove (9011), the lifting limit groove (9021), the No. 1 rivet (10) and the No. 3 rivet (15) are located in the same vertical plane.
4. A breathable packaging bag according to claim 2, characterized in that: The first mounting groove (601), the second mounting groove (701), the third mounting groove (702) and the fourth mounting groove (801) are all provided with receiving magnetic blocks (14). The plurality of receiving magnetic blocks (14) are linearly distributed in the vertical direction, and the magnetic poles of adjacent receiving magnetic blocks (14) in the same vertical direction are opposite.
5. The breathable packaging bag according to claim 3, characterized in that: A reed (13) is provided on the support rod (9). The reed (13) is located on the opening side of the avoidance opening (903). The lower end of the reed (13) is fixedly connected to the support rod (9), and the upper end is unrestrained. The reed (13) is arc-shaped, and the minimum distance between the reed (13) and the avoidance opening (903) is less than the diameter of the third rivet (15).
6. The breathable packaging bag according to claim 1, characterized in that: A plurality of compartments (3) are provided in the packaging bag body (1). The number of the plurality of compartments (3) is the same as and corresponds one-to-one to the number of the middle frames (7). The plurality of compartments (3) are all horizontally arranged. The distance between the lower end surfaces of the plurality of compartments (3) and the upper end surfaces of the corresponding middle frames (7) is 0-10 mm, and the plurality of compartments (3) are all located above the corresponding middle frames (7). Zippers (5) are provided on the plurality of compartments (3), and the paths of the zippers (5) are in a "C" shape.
7. A breathable packaging bag according to claim 6, characterized in that: The packaging bag body (1) includes an inner layer (101), an outer layer (103) and a drawstring (102). The inner layer (101) is located inside the outer layer (103). The inner layer (101) and the outer layer (103) are both connected to the bottom frame (6), the middle frame (7), the top frame (8) and the compartments (3). The inner layer (101) and the outer layer (103) are both mesh surfaces, and the diameter range of the mesh holes is 1-3 mm. The drawstring (102) is elastic, and the initial length of the drawstring (102) is less than the inner wall circumference of the middle frame (7). The drawstring (102) is provided between the outer layer (103) and the inner layer (101), and at least one drawstring (102) is provided between adjacent compartments (3).