Foldable and foldable stacking cage

Abstract

This invention relates to the field of intelligent warehousing technology, specifically disclosing a foldable palletizing cage, comprising a base frame, two first side rails, and two second side rails. The two first side rails are located on the left and right sides of the base frame, respectively, and the two second side rails are located on the front and rear sides of the base frame, respectively. The lower ends of both first side rails are rotatably connected to the base frame, allowing the first side rails to be rotated to an unfolded use state and a folded storage state on the base frame. The two sides of the second side rails are detachably connected to the two first side rails, allowing the second side rails to be separated from the first side rails and placed on the base frame or on the folded first side rails. This invention allows for folding and storage when not in use, reducing space occupation.

Description

Technical Field

[0001] This invention relates to the field of intelligent warehousing technology, and in particular to a foldable palletizing cage. Background Technology

[0002] Palletizing cages are a common logistics carrier widely used in factories, warehouses, distribution centers, and other places to carry and stack various boxes, bags, or parts.

[0003] Currently, most palletizing cages on the market adopt a fixed structure. These palletizing cages are usually made of metal pipes or profiles that are rigidly connected by welding or fasteners to form a non-foldable three-dimensional frame. Their side frames and bottom frames are fixed, which has good stability and load-bearing capacity.

[0004] However, when unloaded or not in use, the palletizing cages are large in size, which occupies a lot of vertical space, resulting in wasted storage space and increased transportation costs. Summary of the Invention

[0005] This invention provides a foldable palletizing cage that can be folded and stored away when not in use, reducing space occupation.

[0006] To solve the above problems, the present invention adopts the following technical solution:

[0007] An embodiment of the present invention provides a foldable palletizing cage, including a base frame, two first side rails and two second side rails. The two first side rails are located on the left and right sides of the base frame, respectively, and the two second side rails are located on the front and rear sides of the base frame, respectively. The lower ends of the two first side rails are rotatably connected to the base frame. The first side rails can be rotated to an unfolded use state and a folded storage state on the base frame. The two sides of the second side rails are detachably connected to the two first side rails, respectively. The second side rails can be separated from the first side rails and placed on the base frame or on the first side rails in the folded state.

[0008] In some embodiments, the second side fence includes a lower fence and an upper fence, the upper fence being rotatably connected to the lower fence; when the second side fence is connected to the first side fence, the upper fence is located above the lower fence, and both the lower fence and the upper fence are connected to the first side fence; after the second side fence is separated from the first side fence, the upper fence can be rotated to be stacked on the lower fence.

[0009] In some embodiments, an extension fence is provided at the top of the first side fence, the extension fence being movably connected to the first side fence, the extension fence having a use state above the first side fence and a storage state stacked on the first side fence; a locking mechanism is provided at the top of the first side fence, the locking mechanism can lock the extension fence when the extension fence is in use state, so that the extension fence remains in use state; when the locking mechanism releases the lock on the extension fence, the extension fence can be moved or rotated to the storage state.

[0010] In some embodiments, the locking mechanism includes a locking seat fixed to the top of a first side fence and a locking member connected to an extended fence. The top surface of the locking seat is provided with a locking groove, the lower end of the locking member is movably connected to the locking seat, and the upper end of the locking member is provided with a locking rod. When the locking rod is inserted into the locking groove, the locking mechanism locks the extended fence. When the locking rod is removed from the locking groove, the locking mechanism releases the locking of the extended fence.

[0011] In some embodiments, the lower end of the locking member is provided with a locking guide groove extending in a vertical direction, and a locking guide rod is fixed on the locking seat. The locking guide rod passes through the locking guide groove and can slide along the locking guide groove and rotate in the locking guide groove.

[0012] In some embodiments, a fence cloth is provided on the top of the second side fence, the bottom of the fence cloth is detachably connected to the second side fence, and the two sides of the fence cloth are respectively detachably connected to the extension fences on the top of the two first side fences.

[0013] In some embodiments, locking mechanisms are provided on both sides of the top of the second side fence, and alignment mechanisms are provided on the top of the first side fence. The locking mechanisms on both sides of the second side fence can be locked and engaged with the alignment mechanisms of the two first side fences respectively or can be separated from each other.

[0014] In some embodiments, the locking mechanism includes a locking rod movable in a left-right direction, and the alignment mechanism includes an alignment hole adapted to the locking rod; when the locking rod is inserted into the alignment hole, the locking mechanism and the alignment mechanism are locked together, and when the locking rod is disengaged from the alignment hole, the locking mechanism and the alignment mechanism are separated from each other.

[0015] In some embodiments, a first support rod is provided on both sides of the bottom of the second side fence, and a first support seat is provided on the bottom frame. The top surface of the first support seat is provided with a first support groove extending in a vertical direction, and the first support rod can be inserted into the first support groove or removed from the first support groove.

[0016] In some embodiments, two first side fences can rotate toward each other and stack together, and two second side fences can stack together.

[0017] The present invention has at least the following beneficial effects: the lower ends of the two first side rails of the present invention are rotatably connected to the bottom frame, and the first side rails can be rotated to an unfolded use state and a folded storage state on the bottom frame; the two sides of the second side rails are detachably connected to the two first side rails respectively; when the palletizing cage of the present invention is needed, the first side rails are rotated to the use state, and the second side rails are connected to the first side rails to form a cage-like structure for placing goods; when the palletizing cage of the present invention is not used, the first side rails can be rotated to the storage state, and the second side rails can be separated from the first side rails and placed on the bottom frame or on the first side rails in the storage state, so that the entire palletizing cage can be folded and stored when not in use, reducing the space occupied. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a foldable palletizing cage in use according to an embodiment of the present invention.

[0019] Figure 2 This is a schematic diagram of the structure of a foldable palletizing cage in a folded state according to an embodiment of the present invention.

[0020] Figure 3 for Figure 2 A cross-sectional view;

[0021] Figure 4 This is a schematic diagram of the structure of the second side fence according to an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the structure of the first side fence according to an embodiment of the present invention;

[0023] Figure 6 for Figure 5 Enlarged view of point C in the middle;

[0024] Figure 7 This is a schematic diagram of the structure of an extended fence according to an embodiment of the present invention;

[0025] Figure 8 for Figure 2 Enlarged view of point A in the middle;

[0026] Figure 9 This is a schematic diagram of the structure of a fence fabric according to an embodiment of the present invention;

[0027] Figure 10 for Figure 4 Enlarged view of point B in the middle;

[0028] Figure 11 This is a schematic diagram of the bottom frame structure according to an embodiment of the present invention;

[0029] Figure 12 This is a schematic diagram of the structure of a foldable palletizing cage in use, according to another embodiment of the present invention.

[0030] Figure 13 This is a schematic diagram of the structure of a foldable palletizing cage in a folded state, according to another embodiment of the present invention.

[0031] Figure 14 for Figure 13 The diagram shown is a front view of the foldable palletizing cage in a folded state.

[0032] Figure 15 This is a schematic diagram of the structure of the second side fence according to another embodiment of the present invention;

[0033] Figure 16 This is a schematic diagram of the structure of the first side fence according to another embodiment of the present invention;

[0034] Figure 17 for Figure 16 Enlarged view of point E in the middle;

[0035] Figure 18 for Figure 15 Enlarged view of point D in the middle;

[0036] Figure 19 This is a schematic diagram of the bottom frame structure according to another embodiment of the present invention.

[0037] The attached figures are labeled as follows:

[0038] The bottom frame is 100, the first support seat is 110, and the first support groove is 111;

[0039] First side fence 200, extension fence 210, locking mechanism 220, locking seat 221, locking element 222, locking groove 223, second support seat 230, second support groove 231, alignment mechanism 240, alignment hole 241, alignment seat 242, alignment groove 243, locking rod 224, locking guide groove 225, locking guide rod 226;

[0040] Second side fence 300, lower fence 310, upper fence 320, fence cloth 330, extension section 331, Velcro male sticker 332, locking mechanism 340, locking rod 341, elastic element 342, grip rod 343, fixing seat 344, limiting groove 345, receiving groove 346, fastener 347, first support rod 351, second support rod 352;

[0041] Support foot 410, positioning block 420. Detailed Implementation

[0042] The present invention is provided below with reference to the accompanying drawings to aid in a full understanding of the various embodiments of the invention as defined by the claims and their equivalents. The description includes various specific details to aid understanding, but these details should be considered merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the various embodiments described herein without departing from the scope and spirit of the invention.

[0043] In the description of this invention, the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0044] It should be understood that when one element (e.g., the first element) is “connected” to another element (e.g., the second element), the element may be directly connected to the other element, or there may be an intermediary element (e.g., the third element) between the element and the other element.

[0045] Embodiments of the present invention provide a foldable and retractable palletizing cage, such as... Figure 1-3 As shown, the system includes a base frame 100, two first side rails 200, and two second side rails 300. The two first side rails 200 are located on the left and right sides of the base frame 100, respectively, and the two second side rails 300 are located on the front and rear sides of the base frame 100, respectively. The lower ends of both first side rails 200 are rotatably connected to the base frame 100. Figure 1 As shown, the first side railing 200 can be rotated to an unfolded state. In this state, the first side railing 200 is approximately vertical to prevent goods on the bottom frame 100 from moving to the side. Figure 2 As shown, the first side railing 200 can also be rotated to a folded storage state on the bottom frame 100. In this state, the side railing 210 is folded and stored, significantly reducing its space occupation.

[0046] The second side fence 300 is detachably connected to each of the two first side fences 200 on both sides, so the second side fence 300 can be connected to the two first side fences 200 or separated from them. Figure 1 As shown, when the second side fence 300 is connected to the two first side fences 200, the first side fences 200 are supported by the second side fences 300 and can remain in use. The bottom frame 100, the two first side fences 200, and the two second side fences 300 form a cage structure, which can be used to place goods. Figure 2As shown, when the second side fence 300 is separated from the two first side fences 200, the first side fence 200 can be rotated to a folded state on the bottom frame 100. The second side fence 300 can be placed on the bottom frame 100 or on the first side fence 200 in the folded state. Thus, when the palletizing cage of this embodiment is not used, the entire palletizing cage can be folded and stored, reducing the space occupied, reducing the waste of storage space, facilitating the transportation of the palletizing cage, and reducing transportation costs.

[0047] It should be noted that the first side fence 200 and the second side fence 300 in this embodiment can be simple plate structures, or they can include a frame and mesh panels, panels, or fabrics fixed inside the frame. The first side fence 200 and the second side fence 300 can each be roughly square in shape, making the overall structure more regular and reducing gaps between them.

[0048] In some embodiments, such as Figure 1 and Figure 4 As shown, the second side fence 300 includes a lower fence 310 and an upper fence 320, with the upper fence 320 rotatably connected to the lower fence 310. Figure 1 As shown, when the second side fence 300 is connected to the first side fence 200, the upper fence 320 is located above the lower fence 310. The upper fence 320 and the lower fence 310 can be parallel to each other and on the same vertical plane to make the second side fence 300 more flat overall. At the same time, both the lower fence 310 and the upper fence 320 are connected to the first side fence 200 to ensure the stability of the connection and avoid one of the lower fence 310 and the upper fence 320 being suspended.

[0049] like Figure 2 and Figure 3 As shown, after the second side fence 300 separates from the first side fence 200, the upper fence 320 can be rotated to stack on the lower fence 310. Since the height of the stacking cage is usually greater than its width, when the second side fence 300 is separated from the two first side fences 200, or if the second side fence 300 is placed directly on the bottom frame 100, the second side fence 300 will exceed the width of the bottom frame 100, thus occupying extra space in the width direction of the bottom frame 100. In this embodiment, the second side fence 300 is set as a foldable two-part structure. When stacked, the entire second side fence 300 can be folded to shorten the length of the second side fence 300 when laid flat, so that it does not exceed the width of the bottom frame 100, thus allowing it to be placed entirely on the bottom frame 100, reducing the space occupied in the width direction of the bottom frame 100.

[0050] In some embodiments, such as Figure 1-3As shown, an extension fence 210 is provided at the top of the first side fence 200. The extension fence 210 is movably connected to the first side fence 200, so the extension fence 210 can move or rotate relative to the first side fence 200. The extension fence 210 has a used state and a stored state, such as... Figure 1 As shown, when the extension fence 210 is in use, it is positioned above the first side fence 200. This effectively increases the height of the first side fence 200, preventing taller goods from tipping over to the left or right and increasing the loading capacity of the palletizing cage. Figure 2 As shown, when the extension fence 210 is in the retracted state, the entire extension fence 210 can be stacked on the first side fence 200, which can prevent the extension fence 210 from exceeding the length of the bottom frame 100, thereby reducing the space occupied in the length direction of the bottom frame 100.

[0051] A locking mechanism 220 is provided at the top of the first side fence 200. When the extension fence 210 is in use, the locking mechanism 220 can lock the extension fence 210 to keep it in use, making it difficult for the extension fence 210 to rotate relative to the first side fence 200, thus ensuring its blocking effect on taller goods. When the locking mechanism 220 releases the lock on the extension fence 210, the extension fence 210 can be moved or rotated to a storage state, and can then be folded and stored together with the first side fence 200.

[0052] When the extension fence 210 is in use, it can be set parallel to the first side fence 200 and the extension fence 210 can be on the same vertical plane as the first side fence 200. The extension fence 210 and the first side fence 200 are flatter as a whole, do not occupy the space inside the palletizing cage, and have a better blocking effect on the goods.

[0053] Furthermore, such as Figure 2 , Figure 5 , Figure 6 , Figure 7 and Figure 8As shown, the locking mechanism 220 includes a locking seat 221 fixed to the top of the first side fence 200 and a locking member 222 connected to the extension fence 210. The top surface of the locking seat 221 is provided with a locking groove 223. The lower end of the locking member 222 is movably connected to the locking seat 221, and the upper end of the locking member 222 is provided with a locking rod 224. The locking member 222 can rotate or move relative to the locking seat 221. When the locking rod 224 is inserted into the locking groove 223, the side wall of the locking groove 223 can prevent the locking rod 224 from rotating or moving to both sides. The entire extension fence 210 is correspondingly difficult to rotate or move, and the locking mechanism 220 locks the extension fence 210, so that the extension fence 210 remains in the use state. When the locking bar 224 moves out of the locking groove 223, the locking groove 223 no longer restricts the locking bar 224 from rotating or moving to both sides, and the entire extension fence 210 can rotate or move accordingly, and the locking mechanism 220 releases the lock on the extension fence 210.

[0054] Since the locking groove 223 is located on the top surface of the locking seat 221, the locking rod 224 can remain inserted into the locking groove 223 under the action of gravity, making it difficult for it to disengage from the locking groove 223 on its own. This can improve the stability of the locking structure 220 in the locked state. At the same time, it provides convenience for manually releasing the lock on the extension fence 210. The user can apply force to the extension fence 210 to release the lock on the extension fence 210 by disengaging the locking rod 224 from the locking groove 223.

[0055] Furthermore, the lower end of the locking member 222 is provided with a locking guide groove 225 extending in the vertical direction, and a locking guide rod 226 is fixed on the locking seat 221. The locking guide rod 226 passes through the locking guide groove 225, which makes it difficult for the locking member 222 to detach from the locking seat 221, and the locking guide rod 226 can slide along the locking guide groove 225 and rotate in the locking guide groove 225.

[0056] When locking the extension fence 210, the extension fence 210 can rotate relative to the first side fence 200 until the locking rod 224 is directly above the locking groove 223, and the locking guide rod 226 rotates accordingly in the locking guide groove 225. Then, the extension fence 210 can move downward relative to the first side fence 200, and the locking guide rod 226 moves upward in the locking guide groove 225, so that the locking rod 224 is inserted into the locking groove 223. When releasing the lock on the extension fence 210, the extension fence 210 can move upward relative to the first side fence 200, and the locking guide rod 226 moves downward in the locking guide groove 225, so that the locking rod 224 is disengaged from the locking groove 223, thereby releasing the lock on the extension fence 210. Subsequently, the extension fence 210 can be rotated to a storage state stacked on the first side fence 200.

[0057] In some embodiments, such as Figure 1 and Figure 9 As shown, a fence fabric 330 is provided on the top of the second side fence 300. The bottom of the fence fabric 330 is detachably connected to the second side fence 300, and the two sides of the fence fabric 330 are detachably connected to the extension fences 210 on the top of the two first side fences 200, respectively. The extension fences 210 and the fence fabric 330 form a frame structure at the top of the stacking cage, which is equivalent to increasing the height of the entire stacking cage and increasing its capacity, allowing the entire stacking cage to hold taller goods.

[0058] Meanwhile, since the fence fabric 330 adopts a detachable connection structure, when the entire stacking cage is stored, the fence fabric 330 can be removed from the extension fence 210 and the first side fence 200 to facilitate the folding and storage of the entire stacking cage.

[0059] The fence fabric 330 has extension sections 331 on both sides and bottom. Male Velcro fasteners 332 are fixed on the extension sections 331. Female Velcro fasteners are fixed on both sides and bottom of the fence fabric 330. The extension sections 331 can bypass the extension fence 210 and the second side fence 300. The male Velcro fasteners 332 and the female Velcro fasteners are then pasted together to achieve a detachable connection between the bottom of the fence fabric 330 and the second side fence 300. The two sides of the fence fabric 330 are detachably connected to the extension fences 210 at the top of the two first side fences 200.

[0060] In some embodiments, such as Figure 1 , Figure 4 and Figure 5 As shown, locking mechanisms 340 are provided on both sides of the top of the second side fence 300, and alignment mechanisms 240 are provided on the top of the first side fence 200. The locking mechanisms 340 on both sides of the second side fence 300 can be locked and engaged with the alignment mechanisms 240 of the two first side fences 200 respectively, or can be separated from each other.

[0061] When the stacking cage of this embodiment needs to be used, both first side railings 200 and both second side railings 300 are rotated or moved to the use state. Then, the locking mechanisms 340 on both sides of the second side railings 300 can be locked and engaged with the alignment mechanisms 240 of the two first side railings 200 respectively. This restricts the movement of the two first side railings 200 and the two second side railings 300, so that the two first side railings 200 and the two second side railings 300 can be kept in the use state, preventing the two first side railings 200 and the two second side railings 300 from tipping over on their own, and ensuring that the user can use the stacking cage normally.

[0062] When the stacking cage of this embodiment is not needed, the locking mechanisms 340 on both sides of the second side fence 300 can be separated from the alignment mechanisms 240 of the two first side fences 200 respectively, so that the rotation of the two first side fences 200 and the two second side fences 300 is no longer restricted. The two first side fences 200 can be rotated to a folded state on the bottom frame 100, and the two second side fences 300 can be removed from the first side fences 200.

[0063] Furthermore, such as Figure 4 , Figure 5 , Figure 6 and Figure 10 As shown, the locking mechanism 340 includes a locking rod 341 that can move in the left-right direction, and the alignment mechanism 240 includes an alignment hole 241 that is adapted to the locking rod 341. When the locking rod 341 is inserted into the alignment hole 241, the locking mechanism 340 and the alignment mechanism 240 are locked together. When the locking rod 341 is disengaged from the alignment hole 241, the locking mechanism 340 and the alignment mechanism 240 are separated from each other.

[0064] The structure employs a locking rod 341 that engages with the alignment hole 241, resulting in a simple design that is easy to operate. Users can manually control the locking rod 341 to move left and right, extending it outwards to insert into the alignment hole 241, or retracting it inwards to disengage from the alignment hole 241.

[0065] Furthermore, the locking mechanism 340 also includes an elastic element 342, which applies an outwardly extending elastic force to the locking rod 341. Thus, without any other external force, the force applied by the elastic element 342 to the locking rod 341 keeps it in an outwardly extending state, preventing it from easily disengaging from the alignment hole 241 and ensuring the locking effect. When the user wants the locking rod 341 to disengage from the alignment hole 241, a certain force is required to overcome the elastic force of the elastic element 342.

[0066] Furthermore, the locking rod 341 is connected to a gripping rod 343 for the user to hold. The user can grasp the gripping rod 343, thereby moving the locking rod 341 in the left and right directions. The gripping rod 343 can extend radially along the locking rod 341 to form a bent structure. This structure makes it easier for the user to apply force, making operation more effortless.

[0067] The locking mechanism 340 also includes a fixed base 344, which has a through hole extending in the left-right direction. The locking rod 341 passes through the through hole and can move and rotate within it. A limiting groove 345 is provided on the fixed base 344. When the locking rod 341 disengages from the alignment hole 241, the gripping rod 343 can rotate to insert into the limiting groove 345 to restrict the locking rod 341 from extending outward. Since the elastic element 342 applies an outward force to the locking rod 341, continuously applying force is required to disengage the locking rod 341 from the alignment hole 341, which is inconvenient for the user. Therefore, in this embodiment, by inserting the gripping rod 343 into the limiting groove 345, the inner wall of the limiting groove 345 restricts the locking rod 341 from extending outward, eliminating the need for continuous force application to the locking rod 341, making operation more convenient and effortless for the user.

[0068] The fixing base 344 is also provided with a receiving groove 346. When the locking rod 341 is inserted into the alignment hole 241, the gripping rod 343 can be rotated to insert into the receiving groove 346. The receiving groove 346 accommodates the gripping rod 343 and also limits the gripping rod 343, restricting the distance of the locking rod 341 into the alignment hole 241 and preventing it from being inserted too deeply.

[0069] In some embodiments, the elastic element 342 is a spring sleeved on the outside of the locking rod 341, with one end of the spring abutting against the fixing seat 344 and the other end of the spring connected to the locking rod 341. Alternatively, the surface of the locking rod 341 is provided with a protrusion, and the other end of the spring abuts against the protrusion.

[0070] In this embodiment, the elastic element 312 is defined as a spring. The spring is sleeved on the outside of the locking rod 341, making it difficult to detach from the locking rod 341, and can stably provide elastic force along the axial direction of the locking rod 341.

[0071] In some embodiments, such as Figure 4 , Figure 5 , Figure 6 and Figure 10 As shown, the locking mechanism 340 also includes a fastener 347, and the alignment mechanism 240 also includes an alignment groove 243. When the fastener 347 is engaged in the alignment groove 243, the locking mechanism 340 and the alignment mechanism 240 are locked together. When the fastener 347 is disengaged from the alignment groove 243, the locking mechanism 340 and the alignment mechanism 240 are separated from each other.

[0072] The fastener 347 essentially hooks onto the first side fence 200, restricting the first side fence 200 from turning outward, thus keeping the first side fence 200 in use. The two first side fences 200 can also tighten the fasteners 347 on both sides of the second side fence 300, so that the second side fence 300 can also be kept in use.

[0073] In this embodiment, the alignment groove 243 can extend in the left and right direction with its opening facing outward. After the fastener 347 is fastened to the alignment groove 243, the top and bottom walls of the alignment groove 243 can restrict the fastener 347 from moving upward and downward, further improving the locking effect.

[0074] Furthermore, a positioning seat 242 is fixed to the top of the first side fence 200, and positioning holes 241 and positioning grooves 243 can be set on the positioning seat 242, so that holes and grooves are not directly opened on the first side fence 200.

[0075] In some embodiments, such as Figure 1 , Figure 4 , Figure 5 and Figure 11 As shown, the second side fence 300 has first support rods 351 on both sides of its bottom, and a first support base 110 is provided on the bottom frame 100. The top surface of the first support base 110 has a first support groove 111 extending vertically. The first support rods 351 can be inserted into or removed from the first support groove 111. When the first support rod 351 is inserted into the first support groove 111, the first support groove 111 supports the first support rod 351, which is equivalent to supporting the bottom of the second side fence 300 and reducing the force on the alignment mechanism 240. When the first support rod 351 is removed from the first support groove 111, the second side fence 300 can be detached from the first side fence 200.

[0076] Furthermore, a second support base 230 is provided on the first side railing 200. The top surface of the second support base 230 is provided with a second support groove 231 extending vertically. Second support rods 352 are provided on both sides of the middle part of the second side railing 300. The second support rods 352 can be inserted into or removed from the second support grooves 231. The second support base 230 can also support the second support rods 352 to reduce the force on the alignment mechanism 240.

[0077] In some embodiments, such as Figure 3 As shown, the two first side fences 200 can rotate towards each other and stack together, and the two second side fences 300 can stack together. This utilizes the space in the height direction of the stacking cage, ensuring that the first side fences 200 and the second side fences 300 do not exceed the horizontal range of the bottom frame 100, thus reducing the occupation of horizontal space.

[0078] In some embodiments, a limiting plate may be provided on the first side fence 200. When the first side fence 200 is in use, the limiting plate may abut against the bottom frame 100 to restrict the first side fence 200 from flipping outward.

[0079] In the above embodiments, the first side fence 200, the extension fence 210, the lower fence 310 and the upper fence 320 can all include an outer frame and a fence cloth fixed inside the outer frame. The fence cloth has a dense structure, making it difficult for the goods in the stacking cage to fall out. At the same time, the manufacturing cost is low.

[0080] This invention also provides another type of foldable and storable palletizing cage, such as... Figure 12-19 As shown, compared with the above embodiments, the top of the first side fence 200 in this embodiment is not provided with an extended fence, and the top of the second side fence 300 is not provided with a fence cloth.

[0081] In this embodiment, the first side fence 200, the lower fence 310, and the upper fence 320 can all include an outer frame and a fence net fixed inside the outer frame. The gaps in the fence net are larger than those in the fence cloth, but the structural strength is higher than that of the fence cloth. The fence net can be made of metal, plastic, or other materials.

[0082] In some embodiments, such as Figure 13 and Figure 17 As shown, the bottom of the base frame 100 is provided with multiple support feet 410 to stably support the entire stacking cage. The bottom of the support feet 410 can be provided with positioning holes. The top of the first side railing 200 is fixed with a positioning block 420 that matches the positioning hole. When two stacking cages of this embodiment are stacked, the operator moves the stacking cage located on the upper side, so that the positioning block 420 of the stacking cage located on the lower side is inserted into the positioning hole of the stacking cage located on the upper side. Even if there is a certain deviation between the positioning head 420 and the positioning hole, under the action of gravity, the positioning block 420 can slide relative to the inner wall of the positioning hole, thereby guiding the positioning block 420 to be accurately inserted into the positioning hole.

[0083] The terms and words used in the foregoing description and claims are not limited to their literal meaning, but are merely used by the applicant to enable a clear and consistent understanding of the invention. Therefore, those skilled in the art will understand that the foregoing description of various embodiments of the invention is illustrative only and not intended to limit the invention as defined by the appended claims and their equivalents.

Claims

1. A foldable and storable palletizing cage, characterized in that: It includes a base frame, two first side rails, and two second side rails. The two first side rails are located on the left and right sides of the base frame, respectively, and the two second side rails are located on the front and rear sides of the base frame, respectively. The lower ends of the two first side rails are rotatably connected to the base frame. The first side rails can be rotated to an unfolded use state and a folded storage state on the base frame. The two sides of the second side rails are detachably connected to the two first side rails, respectively. The second side rails can be separated from the first side rails and placed on the base frame or on the first side rails in the storage state.

2. The foldable and retractable palletizing cage according to claim 1, characterized in that: The second side fence includes a lower fence and an upper fence, which are rotatably connected to the lower fence. When the second side fence is connected to the first side fence, the upper fence is located above the lower fence, and both the lower fence and the upper fence are connected to the first side fence. After the second side fence is separated from the first side fence, the upper fence can be rotated to be stacked on the lower fence.

3. The foldable palletizing cage according to claim 1, characterized in that: An extension fence is provided at the top of the first side fence. The extension fence is movably connected to the first side fence. The extension fence has a use state when it is above the first side fence and a storage state when it is stacked on the first side fence. A locking mechanism is provided at the top of the first side fence. When the extension fence is in use, the locking mechanism can lock the extension fence to keep it in use. When the locking mechanism releases the lock on the extension fence, the extension fence can be moved or rotated to the storage state.

4. The foldable palletizing cage according to claim 3, characterized in that: The locking mechanism includes a locking seat fixed to the top of the first side fence and a locking member connected to the extended fence. The top surface of the locking seat is provided with a locking groove. The lower end of the locking member is movably connected to the locking seat, and the upper end of the locking member is provided with a locking rod. When the locking rod is inserted into the locking groove, the locking mechanism locks the extended fence. When the locking rod is removed from the locking groove, the locking mechanism releases the locking of the extended fence.

5. The foldable palletizing cage according to claim 4, characterized in that: The lower end of the locking member is provided with a locking guide groove extending in the vertical direction. A locking guide rod is fixed on the locking seat. The locking guide rod passes through the locking guide groove and can slide along the locking guide groove and rotate in the locking guide groove.

6. The foldable palletizing cage according to claim 3, characterized in that: The top of the second side fence is provided with a fence cloth, the bottom of which is detachably connected to the second side fence, and the two sides of which are detachably connected to the top extension fences of the two first side fences respectively.

7. The foldable palletizing cage according to any one of claims 1-6, characterized in that: The second side fence is equipped with locking mechanisms on both sides of the top, and the first side fence is equipped with an alignment mechanism on the top. The locking mechanisms on both sides of the second side fence can be locked and engaged with the alignment mechanisms of the two first side fences respectively, or can be separated from each other.

8. The foldable palletizing cage according to claim 7, characterized in that: The locking mechanism includes a locking rod that can move in the left and right direction, and the alignment mechanism includes an alignment hole that is adapted to the locking rod; when the locking rod is inserted into the alignment hole, the locking mechanism and the alignment mechanism are locked together, and when the locking rod is disengaged from the alignment hole, the locking mechanism and the alignment mechanism are separated from each other.

9. The foldable palletizing cage according to claim 7, characterized in that: The second side fence has first support rods on both sides of the bottom, and a first support base is provided on the bottom frame. The top surface of the first support base is provided with a first support groove extending in the vertical direction. The first support rod can be inserted into the first support groove or removed from the first support groove.

10. The foldable palletizing cage according to any one of claims 1-6, characterized in that: The two first-side fences can rotate towards each other and be stacked together, and the two second-side fences can be stacked together.

Images