Folding telescopic stacking frame

Abstract

The utility model provides a folding telescopic stacking frame in the field of logistics. Comprising a base, telescopic stand columns and folding bolt assemblies. The base is provided with a bottom frame and supporting legs, the supporting legs are arranged at the corners of the bottom frame, each supporting leg comprises a footstand and a wrap angle limiting piece, and the wrap angle limiting pieces are arranged on the footstands; the telescopic stand column is provided with a first stand column and a second stand column. The second stand column is inserted into the first stand column to ascend and descend. The first stand column is contained in the wrap angle limiting piece and limited to the wrap angle limiting piece in a cantilever mode to form a stacking frame stand column, and when the telescopic stand column is folded, the telescopic stand column topples over along an opening of the wrap angle limiting piece and is contained on the base. The folding bolt assembly is connected with the wrap angle limiting piece and used for being in threaded connection with the telescopic stand column. The telescopic stand columns capable of being folded are adopted, the overall internal storage space of the stacking frame is expanded, and space waste is avoided; and the telescopic upright posts are folded on the bottom frame and are sequentially folded and laid flat, so that the space for storing an empty frame of the stacking frame is reduced. The folding telescopic stacking frame is suitable for being used.

Description

Technical Field

[0001] The utility model relates to a stacking frame in the field of logistics, in particular to a foldable and telescopic stacking frame. Background Art

[0002] At present, stacking racks are commonly used in the field of logistics to stack items. However, in the process of implementing the technical solution of the invention in the embodiment of the present application, the inventor of the present application found that the above technology has at least the following technical problems:

[0003] 1. Usually, the four columns and the base of the stacking rack are welded together, and the space in the stacking rack is fixed. The stacked items are limited by the space of the stacking rack. Items larger than the space in the stacking rack cannot be stacked, and items smaller than the space in the stacking rack can be stacked, and the remaining space cannot be used; the space in the stacking rack cannot be adjusted as needed, which occupies a large space and wastes a lot of storage resources;

[0004] 2. When the stacking rack is stored in an empty rack, since the stacking rack is a frame structure, it takes up space to stack. In order to save space for storing empty racks, some manufacturers change the four columns of the stacking rack from the original welding method to the plug-in method. Although this saves the storage space of the empty rack, since the four columns and the base are separate, there is a risk of losing the four columns during transportation and storage. In addition, when the stacking rack is in use, the four columns need to be plugged in and out, and the operation efficiency is relatively low. Among them, for stacking racks whose height is obviously greater than the length and width of the base, when the columns are laid down, the excessively long columns will interfere with the base, so the columns and the base cannot be placed neatly. Summary of the invention

[0005] In order to solve the deficiencies in the prior art, the present invention provides a foldable telescopic stacking rack in view of the problem that the space inside the stacking rack cannot be adjusted according to the items in the prior art and the plug-in columns of the stacking rack have disadvantages when the stacking rack is stored in an empty rack. The foldable telescopic stacking rack is connected to the base through a foldable telescopic column. When the stacking rack is stacking items, the telescopic column adjusts the height to stack the items in the space that is suitable for the stacking, thereby adjusting the space inside the stacking rack, thereby expanding the overall internal storage space of the stacking rack and avoiding space waste; when the stacking rack is stacked in an empty rack, the telescopic column is shortened to the minimum height and folded and recovered, and the column does not interfere with the base, thereby reducing the stacking space of the stacking rack, eliminating the hidden danger of the column being lost, and solving the technical problems of adjusting the storage space when the stacking rack is stacking items and reducing the stacking space when the stacking rack is stacked in an empty rack.

[0006] The solution adopted by the embodiment of the present application to solve the technical problem is:

[0007] The foldable and telescopic stacking frame comprises a base, a telescopic column and a folding bolt assembly; the base is used to support the foldable and telescopic stacking frame, and has a bottom frame and legs, the legs are arranged at the corners of the bottom frame, the legs comprise a foot seat and an angle limiter, the foot seat is used to support the bottom frame and contact with other stacking frames for stacking, and the angle limiter is arranged on the foot seat; the telescopic column comprises a first column and a second column, the second column is inserted into the first column and raised and lowered to adjust the height of the telescopic column; the first column is accommodated in the angle limiter, and is limited in the angle limiter in a cantilever manner to form a stacking frame column, and when the telescopic column is in the folded position, the telescopic column tilts along the open part of the angle limiter and is accommodated on the base; the folding bolt assembly is connected to the angle limiter and is used to screw the telescopic column.

[0008] In order to further solve the technical problems to be solved by the embodiments of the present application, the bottom frame provided in the embodiments of the present application is a frame structure, including a bottom beam, a side bending beam, a cross beam and a connecting beam; two groups of bottom beams and two groups of side bending beams form a rectangular frame relative to each other, cross beams are arranged in the rectangular frame to form a grid, and a connecting beam is provided between the two cross beams to form a connected stable structure; the bottom beam is a hollow rectangular tube, and the side bending beam is a U-shaped groove structure, folding out a U-shaped groove matching the bottom beam and the cross beam, and the bottom beam and the cross beam are inserted into the U-shaped groove; the cross beam has the same cross-section as the connecting beam, and is a sheet metal part with an inner folded edge, on which a protruding block is provided for point supporting objects.

[0009] Furthermore, the base includes a bottom frame, a bending fork hole, a reinforcing beam and a support leg; the support legs are arranged at the four corners of the bottom frame, and a reinforcing beam is arranged at the lower part of the side bending beam of the bottom frame, and the reinforcing beam is a rectangular tube to further enhance the strength of the side bending beam; bending fork holes are arranged on both sides of the reinforcing beam, and the bending fork holes are U-shaped wing plates, one end of which is connected to the reinforcing beam, and the other end is connected to the support leg, which is used for use with a forklift during transportation.

[0010] Furthermore, the legs include a foot and an angle limiter; a foot support bottom frame is provided at the lower part of the legs, and an angle limiter is provided at the upper part of the legs; the angle limiter is a column sleeve with an opening on one side, including a column limiter groove, a folding groove, a bottom frame limiter groove and a baffle; a column limiter groove is provided at the upper part of the two adjacent sides of the opening, and the column limiter groove is a through groove with an opening at the upper part, which is used to clamp the telescopic column and keep it upright; a folding groove is provided in the middle part of the two adjacent sides of the opening, and the folding groove covers The folding groove includes a vertical portion and an inclined portion, and the folding bolt assembly passes through the vertical portion to limit and fix the telescopic column. When the telescopic column is folded, the folding bolt assembly slides along the inclined portion of the folding groove, and then the telescopic column is tilted along the opening direction of the corner limiter and stored on the base; a bottom frame limit groove is provided at the lower part of one side adjacent to the opening, and the bottom frame limit groove is used to assemble the bottom frame. The supporting legs are clamped at the four corners of the bottom frame through the bottom frame limit groove, and a baffle is provided on the side of the bottom frame limit groove to limit and fix the bottom frame through the baffle.

[0011] Furthermore, the telescopic column includes a first column, a second column, a telescopic pin assembly, a limit block and a top cap. The first column and the second column are hollow square tubes, and the second column is inserted into the first column with a clearance fit with the first column. Corresponding axial holes are arranged on the first column and the second column, and the telescopic pin assembly is installed in the axial hole. By adjusting the position of the axial hole, the second column is raised and lowered in the first column, and the telescopic column is telescoped. Symmetrical limit blocks are arranged at the lower part of the first column. The limit blocks are straight key type and are installed in the limit groove of the column, so that the telescopic column stands upright on the support leg. A top cap is inlaid on the top of the second column for stacking between stacking racks.

[0012] Furthermore, the telescopic pin assembly is a D-shaped pin.

[0013] Positive effects: A technical solution provided in the embodiments of the present application has at least the following technical effects or advantages:

[0014] 1. Since the legs include a foot and an angle stopper, the telescopic column is mounted on the angle stopper and can be folded. Therefore, when the telescopic column is tilted along the open part of the angle stopper and then stored on the base, the height of the angle stopper is much lower than the telescopic column, which reduces the storage space used for stacking overhead racks;

[0015] 2. Since a folding groove is provided in the middle of the two adjacent sides of the opening of the corner stopper, and the folding groove includes a vertical portion and an inclined portion, when the telescopic column is in a folded position, the folding bolt assembly passes through the vertical portion and slides upward along the inclined portion of the folding groove, and the telescopic column is tilted along the opening of the corner stopper and stored on the base. There is no interference between the telescopic column and the base, so the telescopic column can be folded and laid flat in sequence, reducing the storage space occupied when stacking the overhead racks.

[0016] 3. Since the second column is inserted into the first column, and corresponding axial holes are arranged on the first column and the second column, the second column can be raised or lowered in the first column by adjusting the position of the axial hole through the telescopic pin assembly, so that the telescopic column can be extended or retracted. When stacking items on the stacking rack, larger items cannot be placed. Raising the telescopic column expands the space for stacking items. Smaller items still have space that is not used. Lowering the telescopic column reduces the stacking space of the stacking rack and avoids wasting storage space.

[0017] 4. Since the upper part of the corner limiter is provided with a column limit groove, the lower part of the first column is provided with a limit block, and the limit block is assembled in the column limit groove, the telescopic column can stand upright on the base to form a space for stacking items.

[0018] 5. Since a foot is provided at the lower part of the support leg and a top cap is provided at the top of the second column, the top cap can lift the foot, and multi-layer stacking of the stacking rack can be achieved through the foot at the bottom of the base and the top cap on the top of the telescopic column, thereby improving the space utilization of the stacking rack.

[0019] 6. Since the embodiment of the present application adopts a foldable telescopic column, the technical problem of adjusting the space inside the stacking rack when stacking items in the prior art is effectively solved. When the foldable telescopic stacking rack is used to store items, the telescopic column can be adjusted to a suitable height, thereby expanding the overall internal storage space of the stacking rack and avoiding space waste; when the foldable telescopic stacking rack is used to stack items, the telescopic column can be shortened to a minimum height and folded onto the bottom frame. The telescopic column has no interference with the base and is folded and laid flat in sequence. Then the folded stacking rack is stacked, thereby reducing the space used for stacking and storing the stacking rack, and avoiding the risk of losing the plug-in columns during transportation and storage.

[0020] Suitable for use as a foldable telescopic stacking rack. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0022] Figure 1 This is a schematic diagram of the structure of this embodiment;

[0023] Figure 2 This is the front view of the present embodiment;

[0024] Figure 3 It is a top view of this embodiment;

[0025] Figure 4 is a schematic diagram of the base structure;

[0026] Figure 5 is a schematic diagram of the outrigger structure;

[0027] Figure 6 It is a schematic diagram of the bottom frame corner structure;

[0028] Figure 7 Schematic diagram of the cross section of the beam and connecting beam.

[0029] In the figure:

[0030] 1. Base,

[0031] 11. Bottom frame,

[0032] 111. Bottom beam,

[0033] 112. Side bending beam,

[0034] 113. Beam,

[0035] 114. Connecting beam,

[0036] 12. Bend the fork hole,

[0037] 13. Strengthening beams,

[0038] 14. Outriggers,

[0039] 141. Foot base,

[0040] 142. Angle limiter,

[0041] 1421. Column limit slot,

[0042] 1422. Folding slot,

[0043] 1423. Bottom frame limit slot,

[0044] 1424. Baffle;

[0045] 2. Telescopic columns,

[0046] 21. The first pillar,

[0047] 22. The second pillar,

[0048] 23. Telescopic pin assembly,

[0049] 24. Limit block,

[0050] 25. Top hat;

[0051] 3. Fold the bolt assembly. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0053] The description of the present invention is given for the purpose of illustration and description, and is not intended to be exhaustive or to limit the present invention to the disclosed form. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific uses.

[0054] The embodiment of the present application solves the problems of the stacking rack in the prior art that the empty stacking rack occupies space when stacking and the space inside the stacking rack cannot be adjusted by providing a foldable and telescopic stacking rack. The telescopic columns 2 in the stacking rack are telescopic and foldable, so that the storage space inside the stacking rack can be adjusted and the empty stacking rack occupies the minimum space when stacking.

[0055] According to the attached Figure 1 , 2 As shown in 3, the folding telescopic stacking frame includes a base 1, a telescopic column 2 and a folding bolt assembly 3;

[0056] The base 1 is used to support the folding telescopic stacking frame, and has a bottom frame 11 and a leg 14. The leg 14 is provided at the corner of the bottom frame 11. The leg 14 includes a foot 141 and an angle stopper 142. The foot 141 is used to support the bottom frame 11 and contact with other stacking frames to form a force application point. The angle stopper 142 is provided on the foot 141.

[0057] The telescopic column 2 comprises a first column 21 and a second column 22. The second column 22 is inserted into the first column 21 for lifting and lowering, thereby adjusting the height of the telescopic column 2, thereby forming a telescopic stacking frame column, increasing the storage space in the stacking frame, and adjusting the height of the telescopic column 2 to stack items in the adapted space, thereby avoiding waste of space; the first column 21 is accommodated in the corner stopper 142, and is limited in the corner stopper 142 in a cantilever manner to form a stacking frame column. When the telescopic column 2 is in the folded position, the telescopic column 2 is tilted along the open part of the corner stopper 142, and then stored on the base 1, thereby realizing the folding of the telescopic column 2, thereby folding the stacking frame column, and reducing the storage space used for the stacking frame;

[0058] The folding bolt assembly 3 is connected to the corner limiting piece 142 and is used to be screwed to the telescopic column 2 . The telescopic column 2 is limited by the folding bolt assembly 3 .

[0059] In this embodiment, legs 14 are provided at the four corners of the bottom frame 11, and a foot 141 is provided at the lower part of the leg 14 to form a stable support point of the base 1, and an angle limiter 142 is provided at the upper part of the leg 14. The folding bolt assembly 3 passes through the angle limiter 142 to screw the telescopic column 2 and limit it vertically to form a telescopic stacking frame column; when the telescopic column 2 is tilted and stored on the base 1 along the opening of the angle limiter 142, the stacking frame column is folded, and the four telescopic columns 2 are folded and laid flat in turn, saving the storage space used for stacking the stacking frame.

[0060] The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages:

[0061] When storing items on the foldable telescopic stacking rack, the telescopic column 2 can be adjusted to a suitable height, thereby expanding the overall internal storage space of the stacking rack; when stacking the foldable telescopic stacking rack, the telescopic column 2 can be shortened to the minimum height and folded onto the bottom frame 11, without interference between the telescopic column 2 and the base 1, and then the folded stacking rack can be stacked, thereby reducing the space used for storing the stacking rack.

[0062] In order to ensure the stability of the structure of this embodiment, the bottom frame 11 is a frame structure. Figure 4 , including a bottom beam 111, a side bending beam 112, a cross beam 113 and a connecting beam 114;

[0063] Two groups of bottom beams 111 and two groups of side bending beams 112 are relatively formed into a rectangular frame, and cross beams 113 are arranged in the rectangular frame to form a grid. A connecting beam 114 is arranged between the two cross beams 113 to form a connected stable structure; the bottom beam 111 is a hollow rectangular tube, see the attached Figure 6 In this embodiment, the bottom beam 111 has high strength, thereby increasing the overall load-bearing capacity of the bottom frame 11; the side bending beam 112 is a U-shaped groove structure, and a cold plate bending process is adopted to fold out a U-shaped groove that matches the bottom beam 111 and the cross beam 113; the bottom beam 111 and the cross beam 113 are inserted into the U-shaped groove and then welded to improve welding efficiency; the cross beam 113 has the same cross section as the connecting beam 114, and is a sheet metal part with an inner folding edge, on which a protruding block is provided for point supporting objects, see attached Figure 7 In this embodiment, the cross beam 113 and the connecting beam 114 are made of an integral pressed profile without welding, which improves the overall strength of the bottom beam 111 and reduces the overall weight, thereby increasing the overall load-bearing capacity.

[0064] In order to further ensure the stability of the structure of this embodiment, see the attached Figure 4 The base 1 includes a bottom frame 11, a bending fork hole 12, a reinforcing beam 13 and a leg 14. The legs 14 are arranged at the four corners of the bottom frame 11. A reinforcing beam 13 is arranged at the lower part of the side bending beam 112 of the bottom frame 11. The reinforcing beam 13 is a rectangular tube to further enhance the strength of the side bending beam 112; bending fork holes 12 are arranged on both sides of the reinforcing beam 13 for use with a forklift during transportation. In this embodiment, the bending fork hole 12 is a U-shaped wing plate, one end of which is connected to the reinforcing beam 13, and the other end is connected to the leg 14. The space enclosed between the bending fork hole 12 and the side bending beam 112 is used to cooperate with the pins of the forklift.

[0065] In order to optimize the structure of this embodiment, the leg 14 includes a foot seat 141 and an angle stopper 142. Figure 5A foot seat 141 is provided at the lower part of the leg 14 to support the bottom frame 11, and an angle stopper 142 is provided at the upper part of the leg 14; the angle stopper 142 is a column sleeve with an opening on one side, including a column stopper groove 1421, a folding groove 1422, a bottom frame stopper groove 1423 and a baffle 1424; a column stopper groove 1421 is provided at the upper part of the adjacent two sides of the opening, and the column stopper groove 1421 is a through groove with an opening at the upper part, which is used to clamp the telescopic column 2 and keep it upright; a folding groove 1422 is provided in the middle part of the adjacent two sides of the opening, and the folding groove 1422 includes a vertical part and an inclined part The folding bolt assembly 3 passes through the vertical part to limit and fix the telescopic column 2. When the telescopic column 2 is folded, the folding bolt assembly 3 slides along the inclined part of the folding groove 1422, and then the telescopic column 2 is tilted along the opening direction of the corner limiter 142 and stored on the base 1; a bottom frame limit groove 1423 is provided at the lower part of the adjacent side of the opening, and the bottom frame limit groove 1423 is used to assemble the bottom frame 11. The supporting legs 14 are clamped at the four corners of the bottom frame 11 through the bottom frame limit groove 1423, and a baffle 1424 is provided on the side of the bottom frame limit groove 1423, and the bottom frame 11 is limited and fixed through the baffle 1424.

[0066] The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages:

[0067] Since the legs 14 include the foot 141 and the corner stopper 142, the telescopic column 2 is clamped on the corner stopper 142 and can be folded. Therefore, when the telescopic column 2 is tilted along the open part of the corner stopper 142 and then stored on the base 1, the height of the corner stopper 142 is much lower than the telescopic column 2, which reduces the storage space used for stacking overhead racks.

[0068] Since a folding groove 1422 is provided in the middle of the two adjacent sides of the opening of the corner stopper 142, and the folding groove 1422 includes a vertical portion and an inclined portion, when the telescopic column 2 is in the folded position, the folding bolt assembly 3 passes through the vertical portion and slides upward along the inclined portion of the folding groove 1422, and the telescopic column 2 is tilted along the opening of the corner stopper 142 and stored on the base 1. The telescopic column 2 has no interference with the base 1, so that the telescopic column 2 can be folded, reducing the space occupied by the stacking rack when stacking.

[0069] In order to further optimize the structure of this embodiment, see the attached Figure 1The telescopic column 2 includes a first column 21, a second column 22, a telescopic pin assembly 23, a limit block 24 and a top cap 25. The first column 21 and the second column 22 are hollow square tubes. The second column 22 and the first column 21 are inserted into the first column 21 with clearance fit; corresponding axial holes are arranged on the first column 21 and the second column 22, and the telescopic pin assembly 23 is assembled in the axial hole. By adjusting the position of the axial hole, the second column 22 can be raised and lowered in the first column 21, and then the second column 22 can be extended and retracted, so that the telescopic column 2 can be extended and retracted.

[0070] The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages:

[0071] Since the second column 22 is inserted into the first column 21; corresponding axial holes are arranged on the first column 21 and the second column 22, the second column 22 can be raised and lowered in the first column 21 by adjusting the position of the axial hole through the telescopic pin assembly 23, so that the telescopic column 2 can be extended and retracted. When the stacking rack is stacking items, larger items cannot be placed. Raising the telescopic column 2 expands the space for stacking items. Smaller items still have space that is not used. Lowering the telescopic column 2 reduces the stacking space of the stacking rack and avoids wasting storage space.

[0072] In order to further optimize the structure of this embodiment, a symmetrical limit block 24 is provided at the lower part of the first column 21. The limit block 24 is a straight key type and is assembled in the column limit groove 1421, so that the telescopic column 2 stands upright on the support leg 14 to form a stacking rack.

[0073] The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages:

[0074] Since the upper portion of the corner limiting member 142 is provided with a column limiting groove 1421 and the lower portion of the first column 21 is provided with a limiting block 24 which is assembled in the column limiting groove 1421 , the telescopic column 2 can stand upright on the base 1 to form a space for stacking items.

[0075] Preferably, a top cap 25 is inlaid on the top of the second column 22 for stacking between stacking racks.

[0076] The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages:

[0077] Since a foot 141 is provided at the lower part of the support leg 14 and a top cap 25 is provided at the top of the second column 22, the top cap 25 can lift the foot 141. Multi-layer stacking of the stacking rack can be achieved through the foot 141 at the bottom of the base 1 and the top cap 25 at the top of the telescopic column 2, thereby improving the space utilization of the stacking rack.

[0078] As a conventional technical choice, the telescopic pin assembly 23 is a D-type pin.

[0079] The working process of this embodiment:

[0080] During operation, the telescopic column 2 received on the base 1 stands upright along the opening of the corner limiter 142, and the folding bolt assembly 3 slides down along the inclined portion of the folding groove 1422 to the vertical portion. At the same time, the limit block 24 of the first column 21 is assembled in the column limiter groove 1421, so that the telescopic column 2 stands upright on the support leg 14 to form a stacking rack; the positions of the axial holes on the first column 21 and the second column 22 are adjusted by the telescopic pin assembly 23, so that the second column 22 is raised and lowered in the first column 21, thereby the telescopic column 2 is telescoped and the space of the stacking rack is expanded.

[0081] When storing, open the telescopic pin assembly 23, lower the second column 22 into the first column 21, so that the telescopic column 2 is in the shortest state; fold the telescopic column 2, and the folding bolt assembly 3 passes through the vertical portion and slides upward along the inclined portion of the folding groove 1422. The telescopic column 2 is tilted along the open part of the corner limiter 142, folded and stored on the base 1, and folded and laid flat in sequence to reduce the space occupied by the stacking rack when stacking.

[0082] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. Folding telescopic stacking rack, characterized by: include: A base (1), the base (1) being used to support the foldable telescopic stacking rack, comprising a bottom frame (11) and a support leg (14), the support leg (14) being arranged at a corner of the bottom frame (11), the support leg (14) comprising a foot seat (141) and an angle stopper (142); the foot seat (141) being used to support the bottom frame (11) and to contact and stack with other stacking racks, the angle stopper (142) being arranged on the foot seat (141); A telescopic column (2), the telescopic column (2) comprising a first column (21) and a second column (22); the second column (22) is inserted into the first column (21) and raised and lowered to adjust the height of the telescopic column (2); the first column (21) is received in the corner stopper (142) and is limited in the corner stopper (142) in a cantilever manner to form a stacking frame column; when the telescopic column (2) is in a folded position, the telescopic column (2) is tilted along the open portion of the corner stopper (142) and stored on the base (1); and A folding bolt assembly (3), the folding bolt assembly (3) being connected to the corner stopper (142) and being used for being screwed to the telescopic column (2).

2. The foldable telescopic stacking frame according to claim 1 is characterized in that: The bottom frame (11) is a frame structure, comprising a bottom beam (111), a side bending beam (112), a cross beam (113) and a connecting beam (114); Two groups of bottom beams (111) and two groups of side bending beams (112) are arranged to form a rectangular frame, the cross beams (113) are arranged in the rectangular frame to form a grid, and the connecting beam (114) is arranged between the two cross beams (113) to form a connected stable structure; the bottom beam (111) is a hollow rectangular tube, and the side bending beam (112) is a U-shaped groove structure, folding out a U-shaped groove matching the bottom beam (111) and the cross beam (113), and the bottom beam (111) and the cross beam (113) are inserted into the U-shaped groove; the cross beam (113) and the connecting beam (114) have the same cross section and are sheet metal parts with inner folded edges, and are provided with protruding blocks for point-supporting objects.

3. The foldable telescopic stacking frame according to claim 2 is characterized in that: The base (1) comprises the bottom frame (11), a bending fork hole (12), a reinforcing beam (13) and the supporting legs (14); the supporting legs (14) are arranged at the four corners of the bottom frame (11); the reinforcing beam (13) is arranged at the lower part of the side bending beam (112) of the bottom frame (11); the reinforcing beam (13) is a rectangular tube to further enhance the strength of the side bending beam (112); the bending fork hole (12) is arranged on both sides of the reinforcing beam (13); the bending fork hole (12) is a U-shaped wing plate, one end of which is connected to the reinforcing beam (13) and the other end is connected to the supporting legs 14, and is used in conjunction with a forklift during transportation.

4. The foldable telescopic stacking frame according to claim 1 is characterized in that: The support leg (14) comprises the foot seat (141) and the corner stopper (142); the foot seat (141) is arranged at the lower part of the support leg (14) to support the bottom frame (11), and the corner stopper (142) is arranged at the upper part of the support leg (14); the corner stopper (142) is a column sleeve with an open opening on one side, comprising a column stopper groove (1421), a folding groove (1422), a bottom frame stopper groove (1423) and a baffle (1424); The column limiting groove (1421) is provided at the upper part of the two adjacent sides of the opening. The column limiting groove (1421) is a through groove with an opening at the upper part, which is used to clamp the telescopic column (2) and keep it in an upright state. The folding groove (1422) is provided at the middle part of the two adjacent sides of the opening. The folding groove (1422) includes a vertical part and an inclined part. The folding bolt assembly (3) passes through the vertical part to limit and fix the telescopic column (2). When the telescopic column (2) is folded, the folding bolt assembly (3) is moved along the inclined part of the folding groove (1422). The telescopic column (2) slides, and then the telescopic column (2) is tilted and stored on the base (1) along the opening direction of the corner stopper (142); the bottom frame stopper groove (1423) is provided at the lower part of the side adjacent to the opening, and the bottom frame stopper groove (1423) is used to assemble the bottom frame (11), and the supporting legs (14) are clamped on the four corners of the bottom frame (11) through the bottom frame stopper groove (1423); the baffle plate (1424) is provided on the side of the bottom frame stopper groove (1423), and the bottom frame (11) is limited and fixed by the baffle plate (1424).

5. The foldable telescopic stacking frame according to claim 4 is characterized in that: The telescopic column (2) comprises the first column (21), the second column (22), a telescopic pin assembly (23), a limit block (24) and a top cap (25); The first column (21) and the second column (22) are hollow square tubes, and the second column (22) and the first column (21) are inserted into the first column (21) with clearance fit; corresponding shaft holes are arranged on the first column (21) and the second column (22), and the telescopic pin shaft assembly (23) is assembled in the shaft holes, and the second column (22) is raised and lowered in the first column (21) by adjusting the position of the shaft hole, so that the telescopic column (2) can be extended and retracted; A symmetrical limiting block (24) is provided at the lower part of the first column (21); the limiting block (24) is in the form of a straight key and is assembled in the column limiting groove (1421), so that the telescopic column (2) stands upright on the supporting leg (14); The top of the second upright column (22) is inlaid with the top cap (25) for stacking between stacking racks.

6. The foldable telescopic stacking frame according to claim 5, characterized in that: The telescopic pin shaft assembly (23) is a D-shaped pin.

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