Floor type commodity shelf

Abstract

The utility model discloses a floor type commodity shelf which comprises a plurality of stand columns supported on the ground and a plurality of frame longitudinal beams on each layer, vertical L-shaped clamping blocks are symmetrically fixed to the two ends of each frame longitudinal beam, and transverse inserting plates bent inwards are arranged at the upper ends and the lower ends of first vertical plates, away from the frame longitudinal beams, of the vertical L-shaped clamping blocks. An outer side plate of each stand column is provided with a plurality of pairs of transverse strip-shaped through holes used for being connected with an upper transverse inserting plate and a lower transverse inserting plate in an inserted mode from top to bottom, at least one first bolt through hole is formed between every two vertically-adjacent transverse strip-shaped through holes, and an inner side plate of each stand column is provided with a second bolt through hole which is equal to the first bolt through hole in height and coaxial with the first bolt through hole. The first vertical plate is further provided with a third bolt via hole coaxial with the first bolt via hole, a first bolt penetrates through the third bolt via hole, the first bolt via hole and the second bolt via hole, and the extending end of the first bolt is screwed by a first nut. The frame longitudinal beams and the stand columns are firmly and stably connected, installation is relatively simple and convenient, and forward and reverse installation can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of storage equipment, and particularly relates to a floor-standing storage rack. Background Art

[0002] There are various types and different structures of the existing floor-standing storage racks. Some can carry heavy items, and some can be disassembled to facilitate transportation and reduce transportation costs.

[0003] However, there are still some deficiencies in the existing floor-standing storage racks, and there is still room for improvement. For example, the connection structure between the border longitudinal beam and the column of some storage racks is not firm and stable enough, and safety pins are required to ensure safety and reliability, making the structure relatively complex and the installation process relatively cumbersome. The directionality of the installation of the connecting piece between the border longitudinal beam and the column is very strong and cannot be installed reversely, otherwise it cannot be installed, and its versatility is not strong. Another common deficiency of the existing floor-standing storage racks is that if they want to have good load-bearing capacity, firm and stable structure, their disassembly is not easy and the disassembly is relatively difficult; if they are easy to disassemble, their load-bearing capacity, firmness and stability of the structure are not ideal, and it is difficult to achieve the harmonious unity of good load-bearing capacity, firm structure, stability and convenient installation or disassembly. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a floor-standing storage rack with a firm, stable connection between the border longitudinal beam and the column, relatively simple and convenient installation, and capable of being installed in both directions.

[0005] The technical solution of the utility model is to provide a floor-standing storage rack, in which L-shaped blocks are symmetrically fixed at both ends of each border longitudinal beam, and transverse insertion plates bent inwards are arranged at the upper and lower ends of the first vertical plate of the vertical L-shaped block far from the border longitudinal beam;

[0006] On the outer side plate of each column, a plurality of pairs of horizontal strip-shaped through holes for inserting the upper and lower transverse insertion plates are arranged from top to bottom, and there is at least one first bolt through hole between the adjacent upper and lower horizontal strip-shaped through holes. On the inner side plate of each column, there is a second bolt through hole with the same height and the same axis as the first bolt through hole;

[0007] A third bolt through hole with the same axis as the first bolt through hole is further arranged on the first vertical plate, and a first bolt passes through the third bolt through hole, the first bolt through hole and the second bolt through hole, and the extending end is tightened by a first nut.

[0008] After adopting the above structure, the floor-standing storage rack of the utility model has the following advantages:

[0009] Each frame longitudinal beam is symmetrically fixed with its own vertical L-shaped block at both ends, and the inwardly bent horizontal plug plates of the vertical plates of the vertical L-shaped blocks away from the frame longitudinal beam are inserted into a pair of horizontal strip through holes on the column and then fastened with bolts and nuts. By relying on multiple frame longitudinal beams, such as two, to transfer the weight of the objects on each layer to multiple columns, such as four, on the ground, multiple layers can be set up, and the weight of the objects that can be borne by each layer can reach more than one ton. The overall structure is more solid, more stable, and has better load-bearing capacity, and it is safe and reliable without the need for additional safety pins.

[0010] The vertical L-shaped card block has no upper and lower distinction, is symmetrical up and down, has no front and back, and can be installed up and down. Before installation, one plate, that is, a vertical plate, is fixed to one end of the frame longitudinal beam such as welding, and then the upper and lower horizontal plug plates of the other plate are inserted into the respective horizontal strip card connection holes, and then the first bolt and the first nut are tightened. Compared with the butterfly through holes on the columns of the prior art, the horizontal bar through holes have strong versatility and are more convenient and faster to install or disassemble.

[0011] As described above, the main load-bearing columns and frame longitudinal beams of the floor-standing storage rack have good load-bearing capacity, a firm, stable and safe structure, and are convenient and quick to install and disassemble, achieving a harmonious unity of good load-bearing capacity, a firm, stable and safe structure, and convenient and quick installation or disassembly. And because it is detachable, the transportation and storage costs are relatively reduced.

[0012] Furthermore, the horizontal plug plate is an arc-shaped ear plate with a chamfered front end, and the two horizontal plug plates and the first vertical plate of the vertical L-shaped card block are connected to each other by an arc plate. After adopting the above structure, the clamping structure between the vertical L-shaped card plate and the column has better load-bearing capacity, a stronger structure, more stability, and safety, and is more convenient and faster to install or disassemble.

[0013] Furthermore, the first bolt is a square neck bolt, and the third bolt through hole and the first bolt through hole are both rectangular through holes. With the above structure, the load-bearing capacity is better, and the connection between the column and the frame longitudinal beam is firmer and more stable.

[0014] Furthermore, there are four columns, and two frame longitudinal beams are provided for each layer, and the connection structures between the two ends of each frame longitudinal beam and the respective columns are the same. With the above structure, the connection between the columns of the rectangular shelf in top view and the frame longitudinal beams of each layer is more firm, more stable, more secure and more reliable, and the installation or removal is more convenient and faster.

[0015] Furthermore, there are two border crossbeams on at least the topmost and bottommost storage board assemblies. Each end of each border crossbeam has a fourth bolt through-hole. On the inner sides of the two upright columns, there are respectively fixed C-shaped blocks with openings facing inwards. On the two third vertical plates of each C-shaped block, there is a pair of fifth bolt through-holes coaxial with the fourth bolt through-holes. A second bolt at one end of each passes through the two fourth bolt through-holes and the fifth bolt through-holes respectively, and the protruding end is tightened by its respective second nut. After adopting the above structure, the connection between the two upright columns connected to one end of each of the two parallel border longitudinal beams is firm, stable, safe and reliable, and the installation or disassembly is convenient and fast, further ensuring the harmonious unity of the good load-bearing capacity, firm structure, stability, safety, and convenient and fast installation or disassembly of this floor-standing storage rack.

[0016] Furthermore, this floor-standing storage rack further includes multiple intermediate crossbeams on each layer; the border longitudinal beams are rectangular steel pipes, and the intermediate crossbeams are first C-shaped steel pipes with openings facing downwards. On the inner plate and top plate at the right-angle connection between each rectangular steel pipe and the intermediate crossbeam, there are two notches for accommodating the two vertical blocks at one end of the intermediate crossbeam; on the two vertical plates at both ends of the intermediate crossbeam, there are respective vertical strip-shaped bayonets that are clamped on the top of the inner plate of the rectangular steel pipe of the border longitudinal beam. After adopting the above structure, the connection between multiple (such as four) intermediate crossbeams and multiple (such as two) border longitudinal beams is firm, stable, safe and reliable, and the installation or disassembly is convenient and fast, further ensuring the harmonious unity of the good load-bearing capacity, firm structure, stability, safety, and convenient and fast installation or disassembly of this floor-standing storage rack.

[0017] Furthermore, the storage board of each layer of the storage board assembly is a storage mesh board formed by welding multiple longitudinal round steel bars and multiple transverse round steel bars. The storage mesh board is placed on multiple border longitudinal beams and multiple intermediate crossbeams on each layer. At the four corners of each layer of the storage mesh board, there are welded connection plates and bolt fastening structures: there is at least one sixth bolt through-hole on each connection plate, and at one end of each border longitudinal beam, there is a seventh bolt through-hole coaxial with the sixth bolt through-hole. A vertical third bolt passes through the sixth bolt through-hole and the seventh bolt through-hole, and the protruding end is tightened by the third nut. After adopting the above structure, the connection between the mesh board and multiple (such as two) border longitudinal beams and multiple (such as four) intermediate crossbeams is firm, stable, safe and reliable, and the installation or disassembly is convenient and fast, further ensuring the harmonious unity of the good load-bearing capacity, firm structure, stability, safety, and convenient and fast installation or disassembly of this floor-standing storage rack.

[0018] Furthermore, the storage mesh board is divided into multiple independent units in the width direction. Each unit and an adjacent longitudinal round steel bar of an adjacent unit are sleeved by multiple springs and can rotate and fold relative to each other. After adopting the above structure, between multiple (such as two) independent units, the structure is firm, stable and safe when in use, and can be folded and overlapped during transportation and storage to reduce the occupied space, thereby reducing transportation and warehousing costs.

[0019] Furthermore, the upper border crossbeam is a second U-shaped steel pipe with an opening facing downward. There is a pair of eighth bolt holes on the two vertical plates at one end of the second U-shaped steel pipe. There is a pair of ninth bolt holes at the top end of a steel brace. A fourth bolt passes through the two eighth bolt holes and the two ninth bolt holes, and the protruding end is tightened by a fourth nut; the lower border crossbeam is a third U-shaped steel pipe with an opening facing upward. There is a pair of tenth bolt holes on the two vertical plates at one end of the third U-shaped steel pipe. There is an eleventh bolt hole at the bottom end of a steel brace. A fifth bolt passes through the two tenth bolt holes and the eleventh bolt hole, and the protruding end is tightened by a fifth nut. With the above structure, it further ensures the harmonious unity of the floor-standing storage rack with good load-bearing capacity, firm structure, stability, safety, and convenient and fast installation or disassembly.

[0020] Furthermore, the column is a rectangular steel pipe with a vertical through-hole in the middle of the inner side plate running through the whole length. The second bolt hole is arranged on the first inner side plate of the inner side plate close to the border longitudinal beam; the multiple horizontal strip-shaped through-holes from top to bottom and the first bolt holes between two adjacent horizontal strip-shaped through-holes above and below, such as rectangular through-holes, are all arranged on the inner side of the outer side plate close to the border longitudinal beam; there are also multiple horizontal strip-shaped through-holes and first bolt holes on the outer side of the outer side plate far from the border longitudinal beam, with the same quantity, shape, height, and position as those on the inner side. There are second bolt holes on the second inner side plate of the inner side plate far from the border longitudinal beam, which are at the same height and coaxial with the first bolt holes on the outer side plate. With the above structure, on the premise of ensuring the strength of the storage rack, the self-weight of the column can be reduced, which is convenient for transportation. The punched long strip-shaped steel plates can be used for other purposes, saving materials and cost. In particular, in addition to the internally spaced clamping through-holes, first rectangular through-holes, and first bolt holes that can meet the needs of setting up multiple layers of load-bearing storage plate assemblies, there is also a symmetrical row of the same clamping through-holes, first rectangular through-holes, and first bolt holes on the outer side of the column, which can meet the need of setting up another floor-standing storage rack along the length direction, and the two floor-standing storage racks can be connected together to make the integrity, firmness, and stability better. Description of the Drawings

[0021] Figure 1 is the structural schematic diagram of the floor-standing storage rack of the present utility model.

[0022] Figure 2 is Figure 1 the enlarged structural schematic diagram of A in

[0023] Figure 3 is Figure 1 the enlarged structural schematic diagram of B in

[0024] Figure 4 is Figure 1 the enlarged structural schematic diagram of C in

[0025] Figure 5 This is a schematic diagram of the structure of some components exploded from the floor-standing storage rack of the present utility model. Figure 1 。

[0026] Figure 6 It is Figure 5 an enlarged schematic diagram of D in

[0027] Figure 7 It is Figure 5 an enlarged schematic diagram of E in

[0028] Figure 8 This is a schematic diagram of the structure of some components exploded from the floor-standing storage rack of the present utility model. Figure 2 。

[0029] Figure 9 It is Figure 8 an enlarged schematic diagram of F in

[0030] As shown in the figure:

[0031] 1. Column, 11. Outer side plate, 111. First bolt through-hole, 112. Horizontal strip through-hole, 12. Inner side plate, 121. Second bolt through-hole, 122. First inner side plate, 123. Second inner side plate, 13. Base;

[0032] 2. Storage plate assembly, 21. Frame longitudinal beam, 211. Inner plate, 212. Top plate, 213. Seventh bolt through-hole, 22. Frame cross beam, 221. Fourth bolt through-hole, 222. Eighth bolt through-hole, 223. Tenth bolt through-hole, 23. Vertical L-shaped clamping block, 231. Second vertical plate, 232. First vertical plate, 2321. Horizontal insertion plate, 23211. Upper horizontal insertion plate, 23212. Lower horizontal insertion plate, 2322. Third bolt through-hole, 233. Arc plate, 24. C-shaped block, 241. Third vertical plate, 2411. Fifth bolt through-hole, 25. Intermediate cross beam, 251. Vertical strip-shaped bayonet, 252. Hollow, 26. Notch, 27. Storage mesh plate, 271. Longitudinal round steel, 272. Transverse round steel, 273. Connecting plate, 2731. Sixth bolt through-hole, 274. Spring;

[0033] 3. Fasteners, 31. First bolt, 311. Square neck, 32. First nut, 33. Second bolt, 34. Second nut, 35. Third bolt, 36. Third nut, 37. Fourth bolt, 38. Fourth nut, 39. Fifth bolt, 310. Fifth nut, 312. Washer;

[0034] 4. Steel diagonal brace, 41. Ninth bolt through-hole, 42. Eleventh bolt through-hole. Detailed implementation mode

[0035] The following further describes the specific embodiments of the present utility model in conjunction with the accompanying drawings. It should be noted here that the description of these specific embodiments is used to help understand the present utility model, but does not constitute a limitation on the present utility model. In addition, the technical features involved in the various specific embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0036] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 shown.

[0037] The floor-standing storage rack of the present utility model includes a plurality of columns 1 supported on the ground and a plurality of frame longitudinal beams 21 on each layer.

[0038] At both ends of each frame longitudinal beam 21, vertically L-shaped clamping blocks 23 are symmetrically fixed. The specific structure can be that the respective second vertical plates 231 of the two vertically L-shaped clamping blocks 23 are fixed to the respective end faces of the frame longitudinal beam 21, such as by welding. At the upper and lower ends of the first vertical plate 232 of the vertically L-shaped clamping block 23 away from the frame longitudinal beam 21, there are transverse insertion plates 2321 bent inward.

[0039] On the outer plate 11 of each column 1, a plurality of pairs of transverse strip-shaped through holes 112 for inserting the upper transverse insertion plate 23211 and the lower transverse insertion plate 23212 are provided from top to bottom. There is at least one first bolt through hole 111 between the adjacent upper and lower transverse strip-shaped through holes 112. On the inner plate 12 of each column 1, there is a second bolt through hole 121 at the same height and coaxial with the first bolt through hole 111.

[0040] The plurality of pairs of transverse strip-shaped through holes 112 and the first bolt through holes 111 between the upper and lower ones can be arranged at equal distances up and down on the outer plate 11 of each column 1, so that the distances between the storage plate assemblies 2 on each layer are equal, or they can be arranged at unequal distances, then the distances between the storage plate assemblies 2 on each layer are not equal. There is also a third bolt through hole 2322 coaxial with the first bolt through hole 111 on the first vertical plate 232. A first bolt 31 passes through the third bolt through hole 2322, the first bolt through hole 111, and the second bolt through hole 121, and the protruding end of the first bolt 31 is tightened by a first nut 32.

[0041] The vertically L-shaped clamping block 23 can also be called a connecting right-angle block; the transverse insertion plate 2321 can also be called a transverse elastic piece. The vertical direction can also be called the vertical direction or the plumb direction or the perpendicular direction; the horizontal direction can also be called the horizontal direction.

[0042] The described horizontal insertion plate 2321 is an arc-shaped ear plate with a chamfered front end. The two horizontal insertion plates 2321 and the first vertical plate 232 of the vertical L-shaped block 23 are connected to each other by arc-shaped plates 233 or arc-shaped transition plates. It is not difficult to understand that the two horizontal insertion plates 2321 and the first vertical plate 232 of the vertical L-shaped block 23 can be perpendicular to each other at 90°.

[0043] The described first bolt 31 is preferably a square-neck bolt. The third bolt through-hole 2322 and the first bolt through-hole 111 are both preferably rectangular through-holes for the square neck 311 of the square-neck bolt to pass through.

[0044] A base 13 can be sleeved at the bottom end of the column 1, and the bottom end of the column 1 and the base 13 can be fixed by spot welding.

[0045] The "multiple" in the described multiple horizontal strip-shaped through-holes 112 can be understood as a dozen, dozens, etc., or can also be understood as several. The "multiple" in the described multiple first bolt through-holes 111, such as in the rectangular through-holes, can be understood as several, a dozen, dozens, etc., or can also be understood as several. The "multiple" in the described multiple second bolt through-holes 121 can be understood as several, a dozen, dozens, etc., or can also be understood as several.

[0046] The described column 1 is preferably four in number. Each layer of the frame longitudinal beam 21 is preferably two in number. The connection structures at both ends of each frame longitudinal beam 21 with its respective column 1 are symmetrically arranged. For example, Figure 1 the notch of the vertical L-shaped block 23 at the left end faces left, while the notch of the vertical L-shaped block 23 at the left end faces right.

[0047] There are at least two frame cross beams 22 on the storage plate assemblies 2 of the topmost and bottommost layers. Each end of each frame cross beam 22 has a fourth bolt through-hole 221. On the inner sides of the two columns 1, there are respectively fixed C-shaped blocks 24 with openings facing inwards. On the two third vertical plates 241 of the C-shaped blocks 24, there is a pair of fifth bolt through-holes 2411 coaxial with the fourth bolt through-hole 221. One second bolt 33 at each end passes through the two fifth bolt through-holes 2411 and the fourth bolt through-hole 221 of its own, and the protruding end of the second bolt 33 is tightened by its own second nut 34. It is not difficult to understand that there are two second bolts 33 and two second nuts 34. The respective outer corners of the two third vertical plates 241 can be arc-shaped corners, forming two arc-shaped ear plates, that is, the two third vertical plates 241 are also arc-shaped ear plates, which is convenient for installation and also avoids injury caused by right angles.

[0048] The floor-standing storage rack of the utility model further includes multiple intermediate cross beams 25 on each layer. The frame longitudinal beams 21 are rectangular steel pipes, and the intermediate cross beams 25 are first C-shaped steel pipes with the opening facing downwards. There are two notches 26 on the inner plate 211 and the top plate 212 at the right-angle connection between the rectangular steel pipe of each frame cross beam 22 and the intermediate cross beam 25 to accommodate the two vertical blocks 253 at one end of the intermediate cross beam 25. There are respective vertical strip-shaped bayonets 251 (which can also be called vertical strip-shaped notches) on the two vertical plates at both ends of the intermediate cross beam 25, which are clamped on the top of the inner plate 211 of the rectangular steel pipe of the frame longitudinal beam 21. Each vertical strip-shaped bayonet 251 can also be regarded as a vertical strip-shaped bayonet 251 provided between each vertical block 253 at both ends of the intermediate cross beam 25 and the vertical plate in the middle of the first C-shaped steel pipe, that is, there are two vertical blocks 253 and two vertical strip-shaped bayonets 251 at both ends of the intermediate cross beam 25.

[0049] There can be multiple hollowed-out parts 252 on the cross plate of the intermediate cross beam 25 like the first C-shaped steel pipe. On the premise of ensuring the strength of this floor-standing storage rack, the self-weight of the intermediate cross beam 25 is reduced, which is convenient for transportation. The punched waist-shaped blocks can also be used for other purposes, saving materials and reducing costs.

[0050] The storage plates of each layer of the storage plate assembly 2 are storage mesh plates 27 formed by welding multiple longitudinal round steel bars 271 and multiple transverse round steel bars 272 to each other. The storage mesh plates 27 are placed on multiple, such as two, frame longitudinal beams 21 and multiple, such as four, intermediate cross beams 25 on each layer. At the four corners of each layer of storage mesh plate 27, connecting plates 273 are welded and there are bolt fastening structures: there is at least one sixth bolt through hole 2731 on each connecting plate 273, and at one end of each frame longitudinal beam 21, there is a seventh bolt through hole 213 coaxial with the sixth bolt through hole 2731. A vertical third bolt 35 passes through the sixth bolt through hole 2731 and the seventh bolt through hole 213, and the protruding end of the third bolt 35 is tightened by a third nut 36. It is not difficult to understand that there are two seventh bolt through holes 213 at each end of each layer of storage plate assembly 2, one on the top plate 212 of the rectangular steel pipe of the frame longitudinal beam 21 and one on the bottom plate of the rectangular steel pipe of the frame longitudinal beam 21.

[0051] The storage mesh plate 27 can be divided into multiple, such as two, independent units in the width direction. Each unit and an adjacent longitudinal round steel bar 271 of an adjacent unit are sleeved by multiple springs 274, such as compression springs or hollow cylindrical springs, and can rotate and fold relative to each other.

[0052] The upper frame cross beam 22 can be a second U-shaped steel pipe with an opening facing downwards. There is a pair of eighth bolt through holes 222 on the two vertical plates at one end of the second U-shaped steel pipe. There is a pair of ninth bolt through holes 41 at the top of a steel brace 4. A fourth bolt 37 passes through the two eighth bolt through holes 222 and the two ninth bolt through holes 41, and the protruding end of the fourth bolt 37 is tightened by a fourth nut 38. The lower frame cross beam 22 is a third U-shaped steel pipe with an opening facing upwards. There is a pair of tenth bolt through holes 223 on the two vertical plates at one end of the third U-shaped steel pipe. There is a pair of eleventh bolt through holes 42 at the bottom of the steel brace 4. A fifth bolt 39 passes through the two tenth bolt through holes 223 and the two eleventh bolt through holes 42, and the protruding end of the fifth bolt 39 is tightened by a fifth nut 310. The steel brace 4 can be a fourth U-shaped steel pipe. As described above, both the ninth bolt through hole 41 and the eleventh bolt through hole 42 are two each, and are both provided at the two ends of the two vertical plates of the fourth U-shaped steel pipe.

[0053] The U-shaped steel pipes such as the first U-shaped steel pipe, the second U-shaped steel pipe, the third U-shaped steel pipe, and the fourth U-shaped steel pipe can also be called long strip U-shaped steel plates.

[0054] The column 1 is a rectangular steel pipe with a vertical through gap in the middle of the inner side plate 12 running the full length. The second bolt through hole 121 is provided on the first inner side plate 122 of the inner side plate 12 close to the frame longitudinal beam 21. The multiple horizontal strip through holes 112 from top to bottom and the first bolt through holes 111 between two adjacent horizontal strip through holes above and below, such as rectangular through holes, are all provided on the inner side of the outer side plate 11 close to the frame longitudinal beam 21. There are also multiple horizontal strip through holes 112 and first bolt through holes 111, such as rectangular through holes, on the outer side of the outer side plate 11 far from the frame longitudinal beam 21, with the same quantity, shape, height, and position as those on the inner side. There is a second bolt through hole 121 on the second inner side plate 123 of the inner side plate 12 far from the frame longitudinal beam 21, which is at the same height and coaxial with the first rectangular through hole 111 of the outer side plate 11. The frame longitudinal beam 21 can also be called the load-bearing main beam.

[0055] It is not difficult to understand that since this floor-standing storage rack is generally in a static state, the nuts such as the first nut 32, the second nut 34, the third nut 36, the fourth nut 38, and the fifth nut 310 are generally one. But it can also be two, with double insurance and more secure screwing.

[0056] Some bolts can also be sleeved with washers 312. For example, the third bolt 35 can be sleeved with a washer 312, and the washer 312 is located between the connecting plate 273 and the large head or shoulder of the third bolt 35. For the convenience of description, all the above bolts, nuts, and washers 312 are collectively referred to as fasteners 3.

[0057] Each layer of the storage plate assembly 2 of this floor-standing storage rack composed of the above-described structure can be as Figure 1 ,Figure 5 and Figure 7 For the four layers shown, except for the frame cross beams 22 and the steel diagonal braces 4, the remaining structures of each layer are the same. In other words, the frame cross beams 22 are only available on the top layer, i.e., the first layer, and the bottom layer, i.e., the fourth layer, and are not available on the remaining second and third layers. The steel diagonal braces 4 at both ends only connect the frame cross beams 22 of the first layer and the frame cross beams 22 of the fourth layer, while the other structures and connections of the storage plate assemblies 2 of each layer are the same.

[0058] The components, structures, quantities, etc. not marked above are not shown in the drawings. Some components are not marked. The drawings are only schematic. If there are any inconsistencies between the drawings and the written description, or if there are inconsistencies among the drawings themselves, the written description shall prevail.

[0059] The above description is only the preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A floor-standing storage rack, comprising a plurality of columns supported on the ground and a plurality of frame longitudinal beams on each layer, characterized in that: Each of the two ends of each frame longitudinal beam is symmetrically fixed with respective vertical L-shaped card blocks, and the upper and lower ends of the vertical L-shaped card blocks away from the first vertical plate of the frame longitudinal beam are provided with inwardly bent horizontal plug plates; The outer plate of each column is provided with a plurality of pairs of transverse strip through holes from top to bottom for plugging the upper transverse plug plate and the lower transverse plug plate, and there is at least one first bolt through hole between the upper and lower adjacent transverse strip through holes, and the inner plate of each column is provided with a second bolt through hole of the same height and coaxial line as the first bolt through hole; The first vertical plate also has a third bolt through hole coaxial with the first bolt through hole. A first bolt passes through the third bolt through hole, the first bolt through hole and the second bolt through hole, and the protruding end is tightened by the first nut.

2. The floor-standing storage rack according to claim 1, characterized in that: The transverse plug plate is an arc-shaped ear plate with a chamfered front end, and the two transverse plug plates and the first vertical plate of the vertical L-shaped card block are connected to each other by an arc-shaped plate.

3. The floor-standing storage rack according to claim 1, characterized in that: The first bolt is a square neck bolt, and the third bolt through hole and the first bolt through hole are both rectangular through holes.

4. The floor-standing storage rack according to claim 1, characterized in that: There are four columns, and two frame longitudinal beams in each layer. The connection structures of the two ends of each frame longitudinal beam and the columns are the same.

5. The floor-standing storage rack according to claim 1, characterized in that: At least the topmost and bottommost storage plate assemblies have two frame beams, each frame beam has fourth bolt holes at both ends, the inner sides of the two columns are fixed with respective inwardly opening U-shaped blocks, and the two third vertical plates of the U-shaped blocks have a pair of fifth bolt holes coaxial with the fourth bolt holes, and a second bolt at each end passes through the respective two fourth bolt holes and the fifth bolt hole, and the protruding end is tightened by the respective second nut.

6. The floor-standing storage rack according to claim 1, characterized in that: It also includes multiple middle cross beams on each layer; the frame longitudinal beams are rectangular steel tubes, the middle cross beams are first U-shaped steel tubes opening downward, and each rectangular steel tube is connected to the middle cross beam at a right angle with the inner plate and the top plate having two notches for accommodating two vertical blocks at one end of the middle cross beam; the two vertical plates at both ends of the middle cross beam have respective vertical strip snap-fits on the top of the inner plate of the rectangular steel tube of the frame longitudinal beam.

7. The floor-standing storage rack according to claim 1, characterized in that: The storage plates of each layer of storage plate assemblies are storage mesh plates formed by welding multiple longitudinal round steels and multiple transverse round steels. The storage mesh plates are placed on multiple frame longitudinal beams and multiple middle cross beams of each layer. Connecting plates are welded to the four corners of each layer of storage mesh plates and have bolt fastening structures: each connecting plate has at least one sixth bolt through hole, and one end of each frame longitudinal beam has a seventh bolt through hole coaxial with the sixth bolt through hole, and a vertical third bolt passes through the sixth bolt through hole and the seventh bolt through hole, and the protruding end is tightened by the third nut.

8. The floor-standing storage rack according to claim 7, characterized in that: The storage net plate is divided into a plurality of independent units in the width direction, and each unit and a respective adjacent longitudinal round steel of an adjacent unit are sleeved by a plurality of springs so as to be relatively rotatable and foldable.

9. The floor-standing storage rack according to claim 3, characterized in that: The vertical column is a rectangular steel pipe with a vertical notch running through the full length in the middle of the inner side plate. The second bolt through-hole is provided on the first inner side plate of the inner side plate close to the frame longitudinal beam. The multiple horizontal strip-shaped through-holes from top to bottom and the first bolt through-hole between two adjacent horizontal strip-shaped through-holes are all provided on the inner side of the outer side plate close to the frame longitudinal beam. On the outer side of the outer side plate away from the frame longitudinal beam, there are also multiple horizontal strip-shaped through-holes and first bolt through-holes with the same quantity, shape, height and position as those on the inner side. On the second inner side plate of the inner side plate away from the frame longitudinal beam, there is a second bolt through-hole with the same height and coaxial line as the first bolt through-hole of the outer side plate.

10. The floor-standing storage rack according to claim 5, characterized in that: The upper frame cross beam is a second U-shaped steel pipe with an opening downward. There is a pair of eighth bolt through-holes on the two vertical plates at one end of the second U-shaped steel pipe. There is a pair of ninth bolt through-holes at the top end of a steel diagonal brace. A fourth bolt passes through the two eighth bolt through-holes and the two ninth bolt through-holes, and the protruding end is tightened by a fourth nut. The lower frame cross beam is a third U-shaped steel pipe with an opening upward. There is a pair of tenth bolt through-holes on the two vertical plates at one end of the third U-shaped steel pipe. There is an eleventh bolt through-hole at the bottom end of a steel diagonal brace. A fifth bolt passes through the two tenth bolt through-holes and the eleventh bolt through-hole, and the protruding end is tightened by a fifth nut.

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