A storage shelf that is convenient for disassembly and assembly

Abstract

The present invention discloses a storage rack that is convenient for disassembly and assembly, which includes a number of rack units. Each rack unit includes columns on both sides and a detachable rack board installed between the columns on both sides. And at the inner side wall position of the column, there are also uniformly arranged installation grooves arranged from top to bottom. A downward pressure spring is correspondingly arranged in the installation groove, and a triangular pressure block is installed at the lower end of the downward pressure spring. And the two side ends of the rack board are correspondingly set as obliquely pressed edges. This device can realize the disassembly and installation of the rack board on a single rack unit. The rack board is tightly fixed through the cooperation of the obliquely pressed edge and the triangular pressure block, and the disassembly is convenient. This device can realize the splicing and installation of multiple rack units. During splicing, the splicing installation is realized through the cooperation of the splicing groove and the block unit, realizing the splicing of the columns in the left and right directions, and the splicing is very convenient and the structure is reasonable.

Description

Technical Field

[0001] The present invention relates to a logistics shelf in the technical field of warehousing logistics, and more specifically to a warehousing shelf that is convenient for disassembly and assembly. Background Art

[0002] In the prior art, warehousing logistics shelves are mainly used to store some agricultural and sideline products or commodities that need to be transferred. The main feature of the warehousing logistics shelves in the prior art is that they can store and place a relatively large number of commodities. However, the warehousing logistics shelves in the prior art also need to have the characteristics of being easy to disassemble, install, and the logistics shelves in the prior art also need to have the function of being able to be spliced, disassembled, and assembled to increase the storage space.

[0003] For example: "A shelf for logistics warehousing" disclosed in Publication (Announcement) No.: CN220536610U. The technical solution includes a shelf main body. The bottom of the shelf main body is fixedly connected with an adjustable moving wheel assembly. The inside of the shelf main body is provided with a placing plate card slot, and a detachable placing plate is clamped in the placing plate card slot. One side of the shelf main body is fixedly connected with a baffle hook, and a side baffle hanging rod is clamped in the baffle hook. One side of the side baffle hanging rod is integrally provided with a side plate detachable baffle. The other side of the shelf main body is closely attached to a back detachable baffle. The top of the shelf main body is provided with a heightening rod card slot, and a heightening rod card block is clamped in the heightening rod card slot. By setting the detachable placing plate in the present invention, it can be adjusted according to different needs to increase the available placement positions, with flexible adjustment and improved convenience.

[0004] For example: "A multi-functional shelf for logistics warehousing that is convenient for disassembly" disclosed in Publication (Announcement) No.: CN209382745U. The technical solution includes a plurality of vertically arranged and parallel support columns. The support columns include vertically arranged support plates. On both sides of the support plates, support side plates extend towards the same side of the support plates, and the support side plates are perpendicular to the support plates. A plurality of load-bearing beams for carrying goods are detachably connected to the support columns in a direction perpendicular to the support side plates, and the load-bearing beams are horizontally arranged. One end of the load-bearing beam close to the support column is provided with a clamping structure for clamping the load-bearing beam on the support column. The clamping structure includes a clamping groove piece and a clamping hole opened on the support plate. At least two mounting holes are opened on the clamping groove piece, and clamping heads extend from the clamping groove piece into the mounting holes. The clamping heads are inserted into the support plate obliquely from the outside towards the inside of the support plate along the clamping hole. The present invention has the effect of being convenient for disassembly and assembly and improving the disassembly and assembly efficiency.

[0005] However, in the above technical solution, the installation of the shelf is not very convenient during actual installation. Especially when individual shelf units are spliced and installed into an integral shelf, it is rather troublesome. Moreover, during the specific splicing and installation of existing shelves, in order to ensure the structural stability, certain mechanical parts are usually required for installation, which makes the disassembly extremely troublesome. On the other hand, if mechanical rigid connection installation is not adopted, the stability will be affected to a certain extent. Therefore, the overall structure is not ideal.

[0006] Therefore, to solve the above problems, it is necessary to develop a storage shelf with a reasonable structure and convenient disassembly and assembly. Summary of the Invention

[0007] The purpose of the present invention is to provide a storage shelf with convenient disassembly and assembly in view of the deficiencies of the existing technology. The technical solution is as follows:

[0008] A storage shelf with convenient disassembly and assembly includes a number of shelf units. Each shelf unit includes columns on both sides and a detachable shelf board installed between the columns on both sides. And at the inner side wall position of the column, there are evenly arranged installation grooves arranged from top to bottom. A downward pressure spring is correspondingly arranged in the installation groove, and a triangular pressure block is installed at the lower end of the downward pressure spring. And the two side ends of the shelf board are correspondingly set as obliquely pressed edges. After the two ends of the shelf board are correspondingly placed in the installation groove, the triangular pressure block above presses against the obliquely pressed edges at both ends of the shelf board, thereby fixing the shelf board between the columns on both sides.

[0009] At the outer side wall position of each column, there is also a corresponding splicing groove. Adjacent shelf units are spliced and installed through the splicing grooves on adjacent columns to form an integral logistics shelf.

[0010] Further, the splicing groove on the column is set as a trapezoid structure, and the width of the groove opening of the splicing groove is smaller than the width of the groove bottom. When two columns are correspondingly spliced, the positions of the splicing grooves on the columns correspond, and an integral groove is formed after splicing. The upper and lower ends of the integral groove are V-shaped, and the left and right ends are vertical surfaces.

[0011] It also includes a block unit. The block unit includes V-shaped plates on the upper and lower sides, panels on the front and back sides, and vertical plates on the left and right sides. The block unit is correspondingly placed in the integral groove. The V-shaped plates on the upper and lower sides are correspondingly stuck at the upper and lower ends of the integral groove, and then the two splicing grooves are locked in the left-right direction, so that the columns on both sides are spliced into one body in the left-right direction.

[0012] Further, the vertical plates on the left and right sides of the block unit do not correspond to the vertical surfaces of the integral groove. The length of the V-shaped plates on the upper and lower sides is set to be half of the length of the upper and lower trapezoidal sides of the splicing groove. So that the vertical plates are also correspondingly set at half of the position of the trapezoidal groove, and the outer half area of the trapezoidal groove is correspondingly set as the expansion area.

[0013] Vertical plates on the left and right sides of the described block unit are also correspondingly installed with expansion bodies. The expansion bodies are correspondingly communicated with the internal space of the block unit, so that the block unit and the spaces inside the expansion bodies on the left and right sides form a sealed space. An inflation valve is also provided on the front panel. The expansion bodies are located in the expansion areas of the trapezoidal grooves. The inflation valve is externally connected to an inflation device. After inflating the block unit through the inflation device, the expansion bodies on both sides gradually expand, causing the expansion bodies to correspondingly press against the side walls of the groove body of the splicing groove, thereby fixing the block unit in the splicing groove.

[0014] Further, arc-shaped through holes are also provided at the positions of the trapezoidal sides on the upper and lower sides of the splicing groove. The positions of the splicing grooves on two adjacent columns correspond, so that the positions of the arc-shaped through holes on the two splicing grooves also correspond. A splicing cylinder is installed in one arc-shaped through hole, and a splicing rod is correspondingly installed in the arc-shaped through hole on the other side. Both the splicing cylinder and the splicing rod are arc-shaped structures and can move correspondingly in the arc-shaped through holes. The inner ends of the splicing cylinder and the splicing rod are correspondingly arranged in the arc-shaped through holes, and the outer ends of the splicing cylinder and the splicing rod correspondingly extend into the expansion areas of the splicing groove and correspond to the positions of the expansion bodies.

[0015] The inner diameter of the cylinder body of the splicing cylinder is adapted to the outer diameter of the rod body of the splicing rod. When the expansion body inflates, it will squeeze the splicing rod and the splicing cylinder towards both sides, prompting the splicing cylinder and the splicing rod in the arc-shaped through holes on both sides to enter the arc-shaped through hole on the other side. Correspondingly, the splicing rod correspondingly enters the adjacent splicing cylinder, generating restraining forces in both the left-right direction and the front-back direction for the two columns and splicing and fixing the two columns together.

[0016] Further, the angles of the upper and lower trapezoidal sides of the splicing groove are set to 45°, the length of a single arc-shaped through hole is set to / the circumferential length, and the lengths of the splicing cylinder and the splicing rod are set to / the circumferential length. When the splicing cylinder and the splicing rod are placed in the arc-shaped through hole, half of their lengths are located in the arc-shaped through hole, and the other half of their lengths are located in the expansion area.

[0017] The expansion bodies are located between the upper and lower splicing cylinders or splicing rods. When the expansion bodies expand, they squeeze the whole splicing cylinder or splicing rod into the arc-shaped through hole, so that the splicing cylinder and the splicing rod form a completely overlapping state in the arc-shaped through hole.

[0018] Furthermore, a limiting groove is provided on each arc-shaped through hole, and a limiting block corresponding to the position of the limiting groove is provided on the splicing cylinder and the splicing rod. The limiting block is correspondingly embedded in the limiting groove, and a return spring is also installed in the limiting groove. When the expansion body expands, it presses the splicing cylinder and the splicing rod, causing the limiting block to move in the limiting groove, and then compressing the return spring. When the expansion body deflates, the splicing cylinder and the splicing rod are reset under the action of the return spring, and the outer ends of the splicing cylinder and the splicing rod are correspondingly reset into the expansion area.

[0019] Furthermore, sealing plates are provided at the front and rear ends of the overall groove, and the clamping block unit and the expansion body are correspondingly encapsulated in the overall groove through the sealing plates.

[0020] Beneficial effects: The present invention has the following beneficial effects:

[0021] 1) The device can realize the disassembly and installation of the shelf board on a single shelf unit. The shelf board is tightly fixed through the cooperation of the inclined edge pressing and the triangular pressing block, and the disassembly is convenient.

[0022] 2) The device can realize the splicing and installation of multiple shelf units. During splicing, the splicing installation is realized through the cooperation of the splicing groove and the clamping block unit, achieving the splicing of the columns in the left-right direction. The splicing is very convenient and the structure is reasonable.

[0023] 3) The device realizes the position fixation of the clamping block unit in the splicing groove through the provided expansion body, increasing the overall structural stability.

[0024] 4) The device also realizes the splicing and installation of the columns in the front-rear direction through the provided arc-shaped through hole, splicing cylinder and splicing rod, and the overall structure is very stable and reliable.

[0025] 5) When specifically disassembling the device, only the gas in the expansion body needs to be released. The inflation valve is a one-way valve, which can be inflated correspondingly or deflated correspondingly. The expansion body is made of high-quality expansion material, and the structure is reasonable. Description of the drawings

[0026] Figure 1 It is a structural diagram of the present invention;

[0027] Figure 2 It is a structural diagram of the splicing groove on the column in the present invention;

[0028] Figure 3 It is a structural diagram of the clamping block unit in the present invention;

[0029] Figure 4 It is a docking installation diagram of the clamping block unit and the splicing groove in the present invention;

[0030] Figure 5 It is a position diagram of the arc-shaped through hole in the present invention;

[0031] Figure 6 Schematic diagram of the installation of the splicing cylinder and the splicing rod in the arc-shaped through hole in the present invention;

[0032] Figure 7 Position diagram of the clamping block unit, the splicing cylinder and the splicing rod in the present invention;

[0033] Figure 8 Schematic diagram of the position of the expansion body of the clamping block unit after expansion in the present invention

[0034] Figure 9 Installation position diagram of the limiting groove and the limiting block in the present invention;

[0035] Figure 10 Schematic diagram of the structure of the splicing cylinder and the splicing rod in the present invention;

[0036] Among them, the vertical column 1; the shelf board 2; the installation groove 3; the downward pressing spring 4; the triangular pressing block 5; the inclined pressing edge 6; the splicing groove 7; the overall groove 8; the clamping block unit 9; the V-shaped plate 10; the panel 11; the vertical plate 12; the expansion body 13; the inflation valve 14; the expansion area 15; the arc-shaped through hole 16; the splicing cylinder 17; the splicing rod 18; the limiting groove 19; the limiting block 20; the return spring 21. Specific embodiments

[0037] The following further clarifies the present invention in conjunction with the accompanying drawings and specific embodiments. These embodiments are implemented on the premise of the technical solution of the present invention. It should be understood that these embodiments are only used to illustrate the present invention and not to limit the scope of the present invention.

[0038] As Figure 1 shown, a storage shelf that is convenient for disassembly and assembly includes a plurality of shelf units. Each shelf unit includes vertical columns 1 on both sides and a detachable shelf board 2 installed between the vertical columns 1 on both sides; and evenly arranged installation grooves 3 are also provided at the inner side wall positions of the vertical columns 1 from top to bottom. A downward pressing spring 4 is correspondingly arranged in the installation groove 3, and a triangular pressing block 5 is installed at the lower end of the downward pressing spring 4; and the two side ends of the shelf board 2 are correspondingly set as inclined pressing edges 6. After the two ends of the shelf board 2 are correspondingly placed in the installation groove 3, the upper triangular pressing block 5 is correspondingly pressed on the inclined pressing edges 6 at the two side ends of the shelf board 2, so as to fix the shelf board 2 between the two vertical columns 1;

[0039] As Figure 2 shown, corresponding splicing grooves 7 are also provided at the outer side wall positions of each vertical column 1. Adjacent shelf units are correspondingly spliced and installed through the splicing grooves 7 on adjacent vertical columns 1, so as to form an overall logistics shelf.

[0040] The splicing groove 7 on the column 1 is arranged in a trapezoid structure, and the width of the groove opening of the splicing groove 7 is set to be smaller than the width of the groove bottom; when two columns 1 are spliced correspondingly, the positions of the splicing grooves 7 on the columns 1 correspond, and an integral groove 8 is formed after splicing. The upper and lower ends of the integral groove 8 are V-shaped, and the left and right ends are vertical surfaces;

[0041] As Figure 3 shown, it further includes a clamping block unit 9. The clamping block unit 9 includes V-shaped plates 10 on the upper and lower sides, panel 11 on the front and rear sides, and vertical plates 12 on the left and right sides. The clamping block unit 9 is correspondingly placed in the integral groove 8. The V-shaped plates 10 on the upper and lower sides are correspondingly clamped at the upper and lower ends of the integral groove 8, and then the two splicing grooves 7 are locked in the left and right directions, so that the two columns 1 on both sides are spliced into one body in the left and right directions.

[0042] As Figure 4 shown, the vertical plates 12 on the left and right sides of the clamping block unit 9 do not correspond to the vertical surfaces of the integral groove 8; the length of the V-shaped plates 10 on the upper and lower sides is set to be half of the length of the upper and lower trapezoidal sides of the splicing groove 7; so that the vertical plates 12 are also correspondingly arranged at half of the position of the trapezoidal groove, and the outer half area of the trapezoidal groove is correspondingly set as the expansion area 15;

[0043] Expansion bodies 13 are also correspondingly installed on the vertical plates 12 on the left and right sides of the clamping block unit 9. The expansion bodies 13 are correspondingly communicated with the internal space of the clamping block unit 9, so that the space inside the clamping block unit 9 and the space inside the expansion bodies 13 on the left and right sides form a sealed space, and an inflation valve 14 is also arranged on the front panel 11. The expansion bodies 13 are located in the expansion area 15 of the trapezoidal groove. The inflation valve 14 is externally connected to an inflation device. After inflating the clamping block unit 9 through the inflation device, the expansion bodies 13 on both sides gradually expand, so that the expansion bodies 13 are correspondingly pressed against the side walls of the groove body of the splicing groove 7, thereby fixing the clamping block unit 9 in the splicing groove 7.

[0044] As Figure 5 and Figure 6 shown, arc-shaped through holes 16 are also arranged at the positions of the upper and lower trapezoidal sides of the splicing groove 7. The positions of the splicing grooves 7 on two adjacent columns 1 correspond, so that the positions of the arc-shaped through holes 16 on the two splicing grooves 7 also correspond relatively. And a splicing cylinder 17 is installed in one side of the arc-shaped through hole 16, and a splicing rod 18 is correspondingly installed in the arc-shaped through hole 16 on the other side. Both the splicing cylinder 17 and the splicing rod 18 are arc-shaped structures and can move correspondingly in the arc-shaped through holes 16. The inner ends of the splicing cylinder 17 and the splicing rod 18 are correspondingly arranged in the arc-shaped through holes 16, and the outer ends of the splicing cylinder 17 and the splicing rod 18 correspondingly extend into the expansion area 15 of the splicing groove 7 and correspond to the positions of the expansion bodies 13;

[0045] As Figure 7 and Figure 8As shown, the inner diameter of the splicing cylinder 17 is adapted to the outer diameter of the splicing rod 18. When the inflatable body 13 inflates, it will squeeze the splicing rod 18 and the splicing cylinder 17 to both sides, prompting the splicing cylinder 17 and the splicing rod 18 in the arc-shaped through holes 16 on both sides to enter the arc-shaped through holes 16 on the other side. Correspondingly, the splicing rod 18 correspondingly enters the adjacent splicing cylinder 17; this generates a restraining force on the two columns 1 in both the left-right direction and the front-back direction, splicing and fixing the two columns 1 together.

[0046] The angles of the upper and lower trapezoidal sides of the splicing groove 7 are set to 45°, the length of a single arc-shaped through hole 16 is set to 1 / 8 of the circumferential length, and the lengths of the splicing cylinder 17 and the splicing rod 18 are set to 1 / 4 of the circumferential length; when the splicing cylinder 17 and the splicing rod 18 are placed in the arc-shaped through hole 16, half of their lengths are located within the arc-shaped through hole 16, and the other half is located within the expansion area 15;

[0047] As Figure 10 shown, the inflatable body 13 is located between the splicing cylinders 17 or the splicing rods 18 on the upper and lower sides. When the inflatable body 13 inflates, it squeezes the splicing cylinder 17 or the splicing rod 18 as a whole into the arc-shaped through hole 16, causing the splicing cylinder 17 and the splicing rod 18 to form a completely overlapping state within the arc-shaped through hole 16.

[0048] As Figure 9 shown, each arc-shaped through hole 16 is also provided with a limiting groove 19, and the splicing cylinder 17 and the splicing rod 18 are provided with limiting blocks 20 corresponding to the positions of the limiting groove 19. The limiting blocks 20 are correspondingly embedded in the limiting groove 19, and a return spring 21 is also installed in the limiting groove 19; when the inflatable body 13 inflates, it presses the splicing cylinder 17 and the splicing rod 18 tightly, causing the limiting blocks 20 to move within the limiting groove 19, and then pressing the return spring 21 tightly; when the inflatable body 13 deflates, the splicing cylinder 17 and the splicing rod 18 reset under the action of the return spring 21, and the outer ends of the splicing cylinder 17 and the splicing rod 18 correspondingly reset into the expansion area 15.

[0049] Sealing plates are also provided at the front and rear ends of the overall groove 8, and the clamping block unit 9 and the inflatable body 13 are correspondingly encapsulated within the overall groove 8 through the sealing plates.

[0050] The specific working principle of the present invention is as follows: As Figure 1 shown, the overall shelf of the present invention is composed of several shelf units. A single shelf unit includes columns on both sides and a shelf board, and the shelf board is designed to be easily detachable. During specific installation, the diagonal pressing edges on both sides of the shelf board are pressed tightly by the triangular pressing blocks above through the pressing springs. Therefore, the shelf board is not a rigid installation structure, but a structure pressed by the pressing springs, and the disassembly of the shelf board itself is very convenient, facilitating the adjustment of the storage space size.

[0051] Meanwhile, the overall shelf is installed by docking the shelf units, and the specific docking installation is completed through the columns on both sides. Two adjacent shelf units can be docked through the splicing grooves on the columns. The splicing grooves on the columns are designed as trapezoidal groove structures with smaller notch sizes and are horizontally arranged outward. When the two columns are placed together, the positions of the splicing grooves on both sides correspond. Since both splicing grooves are trapezoidal, a V-shaped groove is formed at the upper and lower ends of the overall groove after splicing. Then, only by setting the upper and lower side plates of the block unit as V-shaped plates with a V-shaped structure and then clamping the block unit in the overall groove, the two columns on both sides can be connected and spliced together, and the two columns will not separate in the left-right direction.

[0052] However, in the above structure, only the columns on both sides are restricted in the left-right direction, and the block unit itself is not restricted in the overall groove and may also fall off due to vibration or other reasons. Therefore, the present invention also provides an expansion body on the vertical plates on the left and right sides of the block unit. First, the V-shaped plates above and below the block unit are not set to have the same length as the upper and lower V-shaped side walls of the overall groove, but only half of the length is set. Then, the vertical plate is located at half of the position of the splicing groove, and the other half of the position is used to place the expansion body, and this area is also the expansion area. The purpose of this design is that when the expansion body expands, the expansion body will directly press against the side wall of the expansion area of the splicing groove, and the expansion body is integrated with the block unit. After this design, the block unit is fixed in the splicing groove, and the block unit will not easily fall off whether it is shaken or for other reasons. Moreover, this method is not installed by mechanical rigidity, and the block unit can be removed only by deflating, which is very convenient.

[0053] However, the above design can only ensure the restraining force of the two columns in the left-right direction. The two columns can still move significantly in the front-back direction. Therefore, the present invention further provides arc-shaped through holes at the upper and lower positions of the splicing groove. The positions of the arc-shaped through holes in the splicing grooves on the two columns on both sides are corresponding and can communicate with each other. Then, a splicing cylinder is installed in the arc-shaped through hole on one side, and a splicing rod is installed in the arc-shaped through hole on the other side. Here, it is necessary to make the tails of the splicing cylinder and the splicing rod extend from the arc-shaped through hole into the expansion area and be located on the outer side of the expansion body. The front ends of the splicing cylinder and the splicing rod are located in the arc-shaped through hole. Then, when the expansion body expands, on the one hand, the expansion body presses tightly against the side wall of the groove body of the splicing groove, and on the other hand, it presses tightly to urge the splicing cylinder and the splicing rod to move into the arc-shaped through hole, so that the splicing rod is inserted into the splicing cylinder and both enter the arc-shaped through hole on the other side. After such a design, the two columns are restricted by the spliced cylinder and splicing rod that are integrated in the front-back direction and will not move in the front-back direction; and because both the splicing cylinder and the splicing rod are arc-shaped structures, after they are butt-jointed and inserted, and after they enter the adjacent arc-shaped through holes, they will also be restricted in the left-right direction, making the splicing structure of the two columns more stable.

[0054] Moreover, the present invention also specifically limits the angle of the trapezoidal side of the splicing groove, which can be specifically set to 45°. After such a design, the length of the arc-shaped through hole is one-eighth of the circumference of the circle, while the splicing cylinder and the splicing rod are set to one-fourth of the circumference of the circle. Half of the splicing cylinder and the splicing rod are in the arc-shaped through hole, and half are in the expansion area. When the expansion body is inflated and pressed tightly, the splicing cylinders and the splicing grooves on both sides can just overlap in the arc-shaped through hole, and the structure is more stable and reliable.

[0055] In addition, the present invention also provides a limit groove on the arc-shaped through hole and limit blocks on the splicing cylinder and the splicing rod. The limit blocks are embedded in the limit groove and a return spring is correspondingly installed. The purpose of such a design is that when the expansion body deflates through the inflation valve, the splicing cylinder and the splicing rod will directly return under the action of the return spring, which will not affect the next use. The disassembly after splicing of the present invention is very convenient. It only needs to deflate the expansion body, and the clamping block unit can be easily taken out, and the splicing cylinder and the splicing rod also return correspondingly, which is very convenient.

[0056] The above specific implementation manner is only a preferred embodiment of the present invention and is not used to limit the implementation and the scope of the claims of the present invention. All equivalent changes and modifications made in accordance with the scope of the patent application protection content of the present invention should be included in the scope of the patent application of the present invention.

Claims

1. A storage rack that is convenient for disassembly and assembly, characterized in that: It includes a number of shelf units. Each shelf unit includes columns (1) on both sides and detachable shelf boards (2) installed between the columns (1) on both sides. At the inner sidewall position of the column (1), evenly arranged mounting grooves (3) are arranged from top to bottom. A downward pressure spring (4) is correspondingly arranged in the mounting groove (3), and a triangular pressure block (5) is installed at the lower end of the downward pressure spring (4). The two side ends of the shelf board (2) are correspondingly set as obliquely pressed edges (6). After the two ends of the shelf board (2) are correspondingly placed in the mounting groove (3), the triangular pressure block (5) above presses against the obliquely pressed edges (6) at both side ends of the shelf board (2), thereby fixing the shelf board (2) between the columns (1) on both sides. At the outer sidewall position of each column (1), a corresponding splicing groove (7) is also arranged. Adjacent shelf units are spliced and installed through the splicing grooves (7) on adjacent columns (1) to form an overall logistics shelf. The splicing groove (7) on the column (1) is set as a trapezoid structure, and the width of the notch of the splicing groove (7) is smaller than the width of the groove bottom. When two columns (1) are spliced correspondingly, the positions of the splicing grooves (7) on the columns (1) correspond, and an overall groove (8) is formed after splicing. The upper and lower ends of the overall groove (8) are V-shaped, and the left and right ends are vertical surfaces. It also includes a block unit (9). The block unit (9) includes V-shaped plates (10) on the upper and lower sides, panel boards (11) on the front and back sides, and vertical plates (12) on the left and right sides. The block unit (9) is correspondingly placed in the overall groove (8). The V-shaped plates (10) on the upper and lower sides are correspondingly stuck at the upper and lower ends of the overall groove (8), and then the two splicing grooves (7) are locked in the left and right directions, so that the columns (1) on both sides are spliced into one body in the left and right directions. The vertical plates (12) on the left and right sides of the block unit (9) do not correspond to the vertical surfaces of the overall groove (8). The length of the V-shaped plates (10) on the upper and lower sides is set to be half of the length of the upper and lower trapezoidal sides of the splicing groove (7). So that the vertical plates (12) are also correspondingly arranged at half of the trapezoidal groove position, and the outer half area of the trapezoidal groove is correspondingly set as an expansion area (15). Expansion bodies (13) are also correspondingly installed on the vertical plates (12) on the left and right sides of the block unit (9). The expansion bodies (13) are correspondingly communicated with the internal space of the block unit (9), so that a closed space is formed between the block unit (9) and the internal space of the expansion bodies (13) on the left and right sides. An inflation valve (14) is also arranged on the front panel board (11). The expansion bodies (13) are located in the expansion area (15) of the trapezoidal groove. The inflation valve (14) is externally connected to an inflation device. After inflating the block unit (9) through the inflation device, the expansion bodies (13) on both sides gradually expand, so that the expansion bodies (13) press against the side walls of the splicing groove (7) correspondingly, thereby fixing the block unit (9) in the splicing groove (7).

2. The disassembling and assembling convenient storage rack according to claim 1, characterized in that: The splicing groove (7) is also provided with arc-shaped through holes (16) at the positions of the trapezoidal sides on the upper and lower sides. The positions of the splicing grooves (7) on two adjacent columns (1) correspond to each other, so that the positions of the arc-shaped through holes (16) on the two splicing grooves (7) also correspond to each other. A splicing cylinder (17) is installed in one side of the arc-shaped through hole (16), and a splicing rod (18) is correspondingly installed in the arc-shaped through hole (16) on the other side. Both the splicing cylinder (17) and the splicing rod (18) are of arc-shaped structures and can move in the arc-shaped through hole (16) accordingly. The inner ends of the splicing cylinder (17) and the splicing rod (18) are correspondingly arranged in the arc-shaped through hole (16), and the outer ends of the splicing cylinder (17) and the splicing rod (18) correspondingly extend into the expansion area (15) of the splicing groove (7) and correspond to the position of the expansion body (13). The inner diameter of the cylinder body of the splicing cylinder (17) is adapted to the outer diameter of the rod body of the splicing rod (18). When the expansion body (13) inflates and expands, it will squeeze the splicing rod (18) and the splicing cylinder (17) towards both sides, prompting the splicing cylinder (17) and the splicing rod (18) in the arc-shaped through holes (16) on both sides to enter the arc-shaped through hole (16) on the other side. Correspondingly, the splicing rod (18) correspondingly enters into the adjacent splicing cylinder (17); so that the two columns (1) generate restraining forces in the left-right direction and the front-back direction, and the two columns (1) are spliced and fixed together.

3. The demountable storage rack according to claim 2, wherein: The angles of the upper and lower trapezoidal sides of the splicing groove (7) are set to 45°, the length of a single arc-shaped through hole (16) is set to 1 / 8 of the circumferential length, and the lengths of the splicing cylinder (17) and the splicing rod (18) are set to 1 / 4 of the circumferential length; when the splicing cylinder (17) and the splicing rod (18) are placed in the arc-shaped through hole (16), half of their lengths are located in the arc-shaped through hole (16), and the other half of their lengths are located in the expansion area (15). The expansion body (13) is located between the splicing cylinders (17) or the splicing rods (18) on the upper and lower sides. When the expansion body (13) expands, it squeezes the whole splicing cylinder (17) or the splicing rod (18) into the arc-shaped through hole (16), so that the splicing cylinder (17) and the splicing rod (18) form a completely overlapping state in the arc-shaped through hole (16).

4. The demountable storage rack according to claim 2, characterized in that: Each arc-shaped through hole (16) is also provided with a limiting groove (19), and limiting blocks (20) corresponding to the positions of the limiting grooves (19) are arranged on the splicing cylinder (17) and the splicing rod (18). The limiting blocks (20) are correspondingly embedded in the limiting grooves (19), and a return spring (21) is also installed in the limiting grooves (19); when the expansion body (13) expands, it presses the splicing cylinder (17) and the splicing rod (18), so that the limiting blocks (20) move in the limiting grooves (19), and then press the return spring (21); when the expansion body (13) deflates, the splicing cylinder (17) and the splicing rod (18) are reset under the action of the return spring (21), and the outer ends of the splicing cylinder (17) and the splicing rod (18) correspondingly reset into the expansion area (15).

5. The storage rack that is convenient for disassembly and assembly according to claim 4, wherein: The front and rear ends of the overall groove (8) are also provided with encapsulation plates, and the clamping block unit (9) and the expansion body (13) are correspondingly encapsulated in the overall groove (8) through the encapsulation plates.

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