Modularized fast-assembly type composite material showing stand

Abstract

The invention discloses a modular fast-assembly type composite material showing stand, and relates to the technical field of showing equipment, the modular fast-assembly type composite material showing stand comprises four vertically-arranged stand columns and push-in units, transverse frames are arranged on the outer sides of the front-side transversely-adjacent stand columns and the rear-side transversely-adjacent stand columns correspondingly, and connecting blocks are fixedly arranged at the left ends and the right ends of the transverse frames correspondingly; a plurality of first inserting holes are formed in the middle of the stand column at equal intervals, third inserting holes are formed in the middle of the connecting blocks, inserting bolts are inserted between the first inserting holes and the third inserting holes, and locking units are fixedly arranged at the left end and the right end of the front side of the transverse frame. The semicircular grooves in the outer sides of the stand columns are embedded into the inner sides of the connecting blocks to form locking structures, after insertion bolts penetrate through first insertion holes and third insertion holes, translation rods of the locking units are inserted into fifth insertion holes, locking is achieved in cooperation with resilience force of springs, all components are tightly connected through the multiple locking structures, and even if the components are subjected to multi-angle dynamic loads, the components are not prone to falling off. And the load can be effectively dispersed, and the structure is prevented from loosening or shifting.

Description

Technical Field

[0001] This invention relates to the field of display equipment technology, and in particular to a modular quick-assembly composite material display rack. Background Technology

[0002] In various scenarios such as commercial exhibitions, retail outlets, and product launches, display racks serve as the core carriers for exhibits and conveying brand information. Their performance and practicality directly affect the efficiency of exhibition setup and the display effect. Currently, the mainstream products in the display rack market are still mainly metal or wood structures. While metal display racks possess excellent structural strength and impact resistance, making them suitable for displaying heavy exhibits, their overall weight is relatively large due to material limitations. In scenarios such as frequent moving of temporary exhibitions and hoisting of exhibits on different floors, this not only increases labor and transportation costs but also poses operational inconvenience and safety hazards. Wooden display racks, on the other hand, are widely used due to their natural texture and lower processing costs. While used in cultural and creative industries and home furnishings, its inherent material defects are quite prominent. It is prone to mold and dampness in the humid rainy season in the south or in humid exhibition areas such as aquatic products and cosmetics. After long-term use, the surface coating is easily worn off and difficult to clean after being stained. Moreover, it is difficult to recycle and reuse, which does not conform to the industry development trend of green and environmentally friendly. In recent years, composite materials have been gradually applied to the field of display racks due to their lightweight, high strength and corrosion resistance. However, existing composite material display racks still have problems such as complex assembly and poor versatility. With the increase in the frequency of commercial exhibitions, the market demand for modular display racks that can be quickly assembled and disassembled and are easy to transport is growing.

[0003] Common assembly methods for display racks in existing technologies include bolt connections, snap-fit ​​connections, and plug-in connections. Bolt connections offer good stability but are time-consuming to install; snap-fit ​​connections are fast but have limited load-bearing capacity; plug-in connections fall in between but require high processing precision. Furthermore, some high-end display racks use magnetic connections, which allow for quick assembly and disassembly, but are costly and unsuitable for heavy-duty applications. Existing display rack assembly methods generally suffer from low efficiency, high tool dependence, and easy loss or damage of connectors, making it difficult to meet the demands of modern commercial exhibitions for rapid setup. Therefore, a modular, quick-assembly composite material display rack needs to be designed to address the aforementioned problems. Summary of the Invention

[0004] To achieve the above objectives, the present invention provides the following technical solution: a modular quick-assembly composite material display rack, comprising four vertically arranged columns and a push-in unit, with horizontal frames arranged on the outer sides of the front and rear horizontally adjacent columns, and connecting blocks fixedly arranged at the left and right ends of the horizontal frames, a plurality of first insertion holes equidistantly arranged in the middle of the columns, and a third insertion hole arranged in the middle of the connecting blocks, with a plug inserted between the first insertion hole and the third insertion hole, and locking units fixedly arranged at the front left and right ends of the horizontal frames, the locking units being used for quick insertion and fixing of the plugs to prevent the plugs from moving back and forth; The column has several second insertion holes equidistantly arranged on its outer side, and the connecting block has a fourth insertion hole on its outer side. An insertion block is inserted between the second insertion holes and the fourth insertion hole, and the pushing unit is used to push the insertion block into the second insertion hole and the fourth insertion hole. Each column is equipped with a support unit at its bottom, and several shelves are equidistantly arranged on the upper part of the crossbeams on the front and rear sides.

[0005] Preferably, each of the columns has a semi-circular groove on its outer side and a hollow layer in its middle. The inner side of each connecting block has the same shape as the semi-circular groove and fits into the inner side of the corresponding semi-circular groove.

[0006] Preferably, each locking unit includes a mounting bracket, the upper part of which is fixedly connected to a limiting bracket by bolts, a translation rod is laterally slidably arranged on the outer side of each mounting bracket, a limiting rod is fixedly arranged in the middle of each limiting bracket, a spring is sleeved on the outer side of each translation rod, the spring is located at one end near the connecting block, an arc-shaped limiting groove is provided on the upper part of each limiting bracket near the connecting block, and the limiting rod is engaged with the inner side of the corresponding arc-shaped limiting groove; Each of the plugs has a fifth insertion hole at its end, and each of the translation rods is inserted into the inner side of the corresponding fifth insertion hole.

[0007] Preferably, the pushing unit includes a base, a rotating seat is provided on the upper right side of the base, a rotating rod is rotatably connected to the upper part of the rotating seat, and connecting rods are rotatably connected to the front and rear ends of the right side of the rotating rod. A guide seat is provided on the upper left side of the base, and a translation bolt is slidably provided in the middle of the guide seat. The left end of the connecting rod is rotatably connected to the front and rear ends of the right end of the translation bolt, respectively. An adsorption magnetic plate is fixedly provided on the left side of the base.

[0008] Preferably, each of the connecting blocks has an installation groove on its inner side, a rubber pad is fitted inside the installation groove, a protrusion is provided on the outer side of the rubber pad, and an inner groove is provided on the upper part of the inner side of the connecting block. The protrusion is embedded and fixed to the inner side of the inner groove by bolts.

[0009] Preferably, the support unit includes a base plate, the upper part of which is provided with a raised layer, and the inner side of the raised layer is provided with an embedded groove. The shape of the embedded groove matches the bottom shape of the column, and the bottom end of the column is engaged and connected to the inner side of the corresponding embedded groove.

[0010] Preferably, the cross-sectional shape of the crossbeam is U-shaped, and each of the four bottom corners of the shelf is provided with a latching block, which is engaged with the inner side of the corresponding crossbeam.

[0011] Preferably, a plurality of rubber rings are equidistantly arranged on the outer side of the insertion block. The rubber rings are used to expand and fix the connecting block and the column after the insertion block is pushed into the second and fourth insertion holes.

[0012] In summary, the present invention provides a modular quick-assembly composite material display rack, which has the following beneficial effects: 1. The semi-circular groove on the outer side of the column precisely engages with the inner side of the connecting block to form a locking structure, preventing lateral displacement when the connecting block and the column are aligned. This provides a reference positioning for the overall connection. After the bolt passes through the first insertion hole of the column and the third insertion hole of the connecting block, the translation rod of the locking unit inserts into the fifth insertion hole of the bolt. The spring's rebound force achieves locking, preventing the bolt from loosening. The rubber ring on the outer side of the insertion block expands elastically after being embedded in the second and fourth insertion holes, filling the gaps and increasing friction, further strengthening the fixed relationship between the connecting block and the column. The multiple locking structures ensure a tight connection between the components, effectively distributing the load even under multi-angle dynamic loads, preventing structural loosening or displacement, and ensuring long-term stability.

[0013] 2. By adopting a fully modular plug-in design, disassembly and assembly can be completed without complicated tools. During assembly, the support unit and the column can be quickly engaged through the embedded groove, and the crossbeam with connecting block can be directly engaged with the semi-circular groove of the column. The push-in unit can quickly push the insertion block into the insertion hole through the linkage of the rotating rod and the connecting rod. The shelf can be fixed by the bottom block engaging the crossbeam. During disassembly, the locking unit and the push-in unit can be separated by operating them in reverse. At the same time, the insertion holes on the column are evenly distributed, and the number of crossbeams and shelves and the height of the shelves can be increased or decreased according to the display needs. It can be adapted to the multi-layer dense display of small exhibits, as well as the single-layer wide display of large exhibits. It can be flexibly applied to different scenarios such as exhibitions, stores, and warehouse displays, and has extremely strong versatility.

[0014] 3. By incorporating a hollow layer in the middle of the columns, weight is reduced while ensuring structural strength. The hollow structure also facilitates the nesting and stacking of multiple columns. The crossbars have a U-shaped cross-section, allowing for multi-layer stacking without interference after disassembly. The base plate of the support unit has a flat structure, which can be laid flat and stacked. Shelves and insert blocks and other small components can be stored together. Compared with traditional integrated display racks, the modular components can significantly reduce transportation volume, and can be stacked according to component type during storage, avoiding the excessive space occupied by the integrated structure and significantly reducing transportation and storage costs. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a modular quick-assembly composite material display rack according to the present invention; Figure 2 This is an enlarged structural diagram of point A of a modular quick-assembly composite material display rack according to the present invention; Figure 3 This is a schematic diagram of the crossbar, connecting block, and rubber pad structure of a modular quick-assembly composite material display rack according to the present invention. Figure 4 This is a schematic diagram of the column, connecting block, and plug structure of a modular quick-assembly composite material display rack according to the present invention; Figure 5 This is a schematic diagram of the connecting block structure of a modular quick-assembly composite material display rack according to the present invention; Figure 6 This is a schematic diagram of the locking unit structure of a modular quick-assembly composite material display rack according to the present invention; Figure 7 This is a schematic diagram of the push-in unit structure of a modular quick-assembly composite material display rack according to the present invention; Figure 8 This is a top view of the column structure of a modular quick-assembly composite material display rack according to the present invention; Figure 9 This is a schematic diagram of the support unit structure of a modular quick-assembly composite material display rack according to the present invention; Figure 10 This is a schematic diagram of the shelf structure of a modular quick-assembly composite material display rack according to the present invention; Figure 11 This is a schematic diagram of the cross-sectional structure of the horizontal frame and shelf of a modular quick-assembly composite material display rack according to the present invention.

[0016] Explanation of reference numerals in the attached figures: 1. Column; 101. Semi-circular groove; 102. Hollow layer; 103. First insertion hole; 104. Second insertion hole; 2. Horizontal frame; 3. Connecting block; 301. Third insertion hole; 302. Mounting groove; 303. Inner groove; 304. Fourth insertion hole; 4. Bolt; 401. Fifth insertion hole; 5. Locking unit; 501. Mounting bracket; 502. Limiting bracket; 503. Translation rod; 504. Limiting rod; 505. Spring; 506. Arc-shaped limiting groove; 6. Insertion block; 601. Rubber ring; 7. Push-in unit; 701. Base; 702. Rotating seat; 703. Rotating rod; 704. Connecting rod; 705. Translation bolt; 706. Guide seat; 707. Adsorption magnetic plate; 8. Rubber pad; 801. Protruding block; 9. Support unit; 901. Base plate; 902. Protruding layer; 903. Embedded groove; 10. Shelf; 1001. Stacking block. Detailed Implementation

[0017] The following is in conjunction with the appendix Figure 1 -Appendix Figure 11 This application will be described in further detail below.

[0018] Example: Please see Figures 1-11 As shown, the present invention provides a technical solution: a modular quick-assembly composite material display rack, comprising four vertically arranged columns 1 and a push-in unit 7. A horizontal frame 2 is provided on the outer side of the front and rear horizontally adjacent columns 1. A connecting block 3 is fixedly provided at the left and right ends of the horizontal frame 2. Several first insertion holes 103 are equidistantly arranged in the middle of the columns 1. A third insertion hole 301 is provided in the middle of each connecting block 3. A plug 4 is inserted between the first insertion holes 103 and the third insertion holes 301. A locking unit 5 is fixedly provided at the left and right ends of the front side of the horizontal frame 2. The locking unit 5 is used for quick insertion and fixing of the plug 4, preventing the plug 4 from moving back and forth. After the initial connection between the horizontal frame 2 and the columns 1 is achieved, the locking unit 5 further strengthens the fixation, preventing the plug 4 from shifting due to external force collisions after assembly, and ensuring the stability of the horizontal structure. The outer side of the column 1 is provided with several second insertion holes 104 at equal intervals, and the outer side of the connecting block 3 is provided with a fourth insertion hole 304. An insertion block 6 is inserted between the second insertion holes 104 and the fourth insertion hole 304. The pushing unit 7 is used to push the insertion block 6 into the second insertion hole 104 and the fourth insertion hole 304. The pushing unit 7 provides a stable pushing force to ensure that the insertion block 6 is accurately embedded in the double insertion holes, replacing manual hard pushing and improving assembly efficiency and fitting tightness. Each column 1 has a support unit 9 at its bottom, and several shelves 10 are equidistantly arranged on the upper part of the front and rear side crossbeams 2. The support unit 9 provides bottom support for the overall structure and increases the contact area with the ground to improve stability. The shelves 10 serve as the core display carrier and can be installed in a stacked manner to adapt to the placement needs of different display items.

[0019] Please see Figure 4 and Figure 8 As shown, a semi-circular groove 101 is provided on the outer side of each column 1, and a hollow layer 102 is provided in the middle of each column 1. The semi-circular groove 101 provides precise fitting and positioning for the connecting block 3, avoiding lateral displacement when the connecting block 3 is docked with the column 1. The hollow layer 102 reduces the overall weight, saves the amount of composite materials, and reduces the difficulty of transportation and assembly while ensuring the structural strength of the column 1. The inner side of the connecting block 3 has the same shape as the semi-circular groove 101 and fits into the inner side of the corresponding semi-circular groove 101. The shape adaptation achieves a tight fit between the connecting block 3 and the column 1, improving the overall structure after the two are connected. At the same time, it provides a reference for the subsequent alignment of the first socket 103 and the third socket 301, reducing assembly deviation.

[0020] Please see Figure 2 and Figure 6 As shown, each locking unit 5 includes a mounting bracket 501. The upper part of the mounting bracket 501 is fixedly connected to a limiting bracket 502 by bolts. A translation rod 503 is slidably arranged on the outer side of the mounting bracket 501. A limiting rod 504 is fixedly arranged in the middle of the limiting bracket 502. A spring 505 is sleeved on the outer side of the translation rod 503. The spring 505 is located at one end close to the connecting block 3. An arc-shaped limiting groove 506 is provided at the upper end of the limiting bracket 502 close to the connecting block 3. The limiting rod 504 is engaged with the inner side of the corresponding arc-shaped limiting groove 506. The mounting bracket 501 and the limiting bracket 502 constitute the fixed base of the locking unit 5. The spring 505 provides a reset thrust for the translation rod 503. The arc-shaped limiting groove 506 forms a rotation limit on the limiting rod 504, ensuring that the limiting rod 504 is stably in a vertical locking state and preventing the translation rod 503 from retracting. Each end of the plug 4 is provided with a fifth insertion hole 401. The translation rod 503 is inserted into the inner side of the corresponding fifth insertion hole 401. By the engagement of the translation rod 503 with the fifth insertion hole 401, the axial movement of the plug 4 is directly restricted, and the connection between the plug 4 and the cross frame 2 and the column 1 is locked to prevent the plug 4 from loosening.

[0021] Please see Figure 2 and Figure 7As shown, the push-in unit 7 includes a base 701. A rotating seat 702 is provided on the upper right side of the base 701. A rotating rod 703 is rotatably connected to the upper part of the rotating seat 702. A connecting rod 704 is rotatably connected to the front and rear ends of the right side of the rotating rod 703. A guide seat 706 is provided on the upper left side of the base 701. A translation bolt 705 is laterally slidably provided in the middle of the guide seat 706. The left ends of the connecting rods 704 are rotatably connected to the front and rear ends of the right end of the translation bolt 705. The left side of the base 701 is fixedly provided with... The device is equipped with an adsorption magnetic plate 707. The base 701 provides stable support for the push-in unit 7, and the rotating seat 702 provides a rotation fulcrum for the rotating rod 703. Through the linkage between the rotating rod 703 and the connecting rod 704, the manual rotation is converted into the horizontal thrust of the translation bolt 705. The guide seat 706 restricts the sliding direction of the translation bolt 705 to ensure that the thrust is accurately applied to the insertion block 6. The adsorption magnetic plate 707 can be quickly adsorbed on the outside of the column 1 or the connecting block 3 to achieve temporary positioning of the push-in unit 7 without additional fixing.

[0022] Please see Figure 4 and Figure 5 As shown, each connecting block 3 has an installation groove 302 on its inner side, and a rubber pad 8 is fitted inside the installation groove 302. Each rubber pad 8 has a protrusion 801 on its outer side, and an inner groove 303 is provided on the upper part of the inner side of the connecting block 3. The protrusion 801 is fitted and fixed to the inner side of the inner groove 303 by bolts. The installation groove 302 provides installation space for the rubber pad 8. The rubber pad 8 can buffer the impact force when the connecting block 3 and the column 1 are fitted together, reduce component wear and enhance the fit and sealing. The fit between the protrusion 801 and the inner groove 303 and the bolt fixing prevent the rubber pad 8 from falling off or shifting during long-term use, ensuring stable buffering effect.

[0023] Please see Figure 1 and Figure 9 As shown, the support unit 9 includes a base plate 901. The upper part of the base plate 901 is provided with a raised layer 902. The inner side of the raised layer 902 is provided with an embedded groove 903. The shape of the embedded groove 903 matches the bottom shape of the column 1, and the bottom end of the column 1 is engaged with the inner side of the corresponding embedded groove 903. The base plate 901 increases the contact area between the support unit 9 and the ground, improving the overall anti-tipping ability. The cooperation between the raised layer 902 and the embedded groove 903 realizes the precise positioning of the column 1, avoids the bottom of the column 1 from sliding, and disperses the vertical pressure transmitted by the column 1, protecting the structure of the base plate 901.

[0024] Please see Figure 10 and Figure 11As shown, the cross-sectional shape of the horizontal frame 2 is U-shaped. At the bottom four corners of the shelf 10, there are mounting blocks 1001. The mounting blocks 1001 are engaged with the inner side of the corresponding horizontal frame 2. The U-shaped cross-section ensures the structural strength of the horizontal frame 2 while providing engagement space for the mounting blocks 1001. The cooperation between the mounting blocks 1001 and the U-shaped groove enables the shelf 10 to be quickly stacked and installed without bolts, and it is easy to adjust the position or number of the shelf 10 according to the display requirements.

[0025] Please see Figure 4 and Figure 7 As shown, several rubber rings 601 are equidistantly arranged on the outer side of the insertion block 6. The rubber rings 601 are used to expand and fix the connecting block 3 and the column 1 after the insertion block 6 is pushed into the second insertion hole 104 and the fourth insertion hole 304. The rubber rings 601 are elastically expanded by the pressure of the inner walls of the second insertion hole 104 and the fourth insertion hole 304, filling the gap between the insertion block 6 and the insertion hole, enhancing the friction between the two, preventing the connecting block 3 and the column 1 from becoming relatively loose, and buffering the vibration transmission during use to protect the insertion hole structure.

[0026] The implementation principle of this application embodiment is as follows: First, the support unit 9 is placed stably, and the shape of the embedded groove 903 is completely matched with the bottom of the column 1. The bottom ends of the four columns 1 are inserted into the corresponding embedded grooves 903 respectively to complete the vertical positioning and basic support of the columns 1. Take the horizontal frame 2 and the connecting blocks 3 fixed at its left and right ends. Place the horizontal frame 2 between two horizontally adjacent columns 1 on the front or rear side, so that the inner side of the connecting block 3 is precisely fitted into the semi-circular groove 101 of the column 1. At the same time, align the first insertion hole 103 in the middle of the column 1 with the third insertion hole 301 in the middle of the connecting block 3. At this time, the rubber pad 8 in the mounting groove 302 of the connecting block 3 is fixed in the inner groove 303 by the protrusion 801, which can buffer the contact pressure between the connecting block 3 and the column 1 and improve the assembly sealing. Insert the plug 4 into the aligned first socket 103 and third socket 301. Utilize the overlapping force between the plug 4 and the socket to achieve initial fixation of the crossbeam 2 and connecting block 3 on the column 1. Since the first sockets 103 on the column 1 are equidistantly distributed, different heights of sockets 4 can be selected for plug installation according to display requirements, flexibly adjusting the vertical position of the crossbeam 2 to meet modular assembly needs. Pushing and rotating the translation rod 503 of the locking unit 5 at the front left and right ends of the crossbar 2 causes the spring 505 on the outer side of the translation rod 503 to be compressed and contracted, which in turn drives the limiting rod 504 to rotate from a horizontal state to a vertical state, and finally engages in the arc-shaped limiting groove 506 of the limiting frame 502. The rebound force of the spring 505 pushes the translation rod 503 and the limiting rod 504 to move inward until the translation rod 503 is blocked by the limiting frame 502. At this time, the end of the translation rod 503 is precisely inserted into the fifth insertion hole 401 at the end of the plug 4, completing the axial locking of the plug 4 and preventing the plug 4 from moving back and forth. Insert the insertion block 6 into the second insertion hole 104 on the outer side of the column 1. Then, attach the push-in unit 7 to the outside of the column 1 or the connecting block 3 via the magnetic adsorption plate 707 on the left side of the base 701, achieving rapid positioning of the push-in unit 7. Push the rotating rod 703 upward to make it rotate upward around the rotating seat 702. Through the connecting rod 704, drive the translation bolt 705 to slide horizontally to the left inside the guide seat 706. Use the thrust of the translation bolt 705 to push the insertion block 6 completely into the second insertion hole 104 and the fourth insertion hole 304 of the connecting block 3. The rubber ring 601 on the outside of the insertion block 6 is compressed and expands elastically, tightly fitting the inner wall of the insertion hole, achieving secondary reinforcement and fixation between the connecting block 3 and the column 1, and preventing loosening after assembly. Several shelves 10 are sequentially mounted on the upper part of the front and rear side cross frames 2. The four corner blocks 1001 at the bottom of the shelf 10 precisely engage with the U-shaped cross section of the cross frame 2. The engaging structure enables the shelf 10 to be quickly positioned and fixed without the need for additional fasteners, thus completing the modular assembly of the entire display rack.

[0027] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A modular quick-assembly composite material display rack, comprising four vertically arranged columns (1) and a push-in unit (7), characterized in that: A crossbeam (2) is provided on the outer side of the front and rear adjacent columns (1). A connecting block (3) is fixedly provided on the left and right ends of the crossbeam (2). A number of first insertion holes (103) are provided at equal intervals in the middle of the column (1). A third insertion hole (301) is provided in the middle of the connecting block (3). A plug (4) is inserted between the first insertion hole (103) and the third insertion hole (301). A locking unit (5) is fixedly provided on the left and right ends of the front side of the crossbeam (2). The locking unit (5) is used for quick insertion and fixing of the plug (4) to prevent the plug (4) from moving back and forth. The column (1) has several second sockets (104) evenly spaced on its outer side, and the connecting block (3) has a fourth socket (304) on its outer side. An insertion block (6) is inserted between the second socket (104) and the fourth socket (304). The pushing unit (7) is used to push the insertion block (6) into the second socket (104) and the fourth socket (304). Each of the columns (1) is provided with a support unit (9) at its bottom, and several shelves (10) are provided at equal intervals on the upper part of the crossbeams (2) on the front and rear sides.

2. The modular quick-assembly composite material display rack according to claim 1, characterized in that: The outer side of each column (1) is provided with a semi-circular groove (101), and the middle part of each column (1) is provided with a hollow layer (102). The inner side of the connecting block (3) has the same shape as the semi-circular groove (101) and fits into the inner side of the corresponding semi-circular groove (101).

3. The modular quick-assembly composite material display rack according to claim 1, characterized in that: Each locking unit (5) includes a mounting bracket (501). The upper part of the mounting bracket (501) is fixedly connected to a limiting bracket (502) by bolts. A translation rod (503) is slidably arranged on the outer side of the mounting bracket (501). A limiting rod (504) is fixedly arranged in the middle of the limiting bracket (502). A spring (505) is sleeved on the outer side of the translation rod (503). The spring (505) is located at one end close to the connecting block (3). An arc-shaped limiting groove (506) is provided at one end of the upper part of the limiting bracket (502) close to the connecting block (3). The limiting rod (504) is engaged with the inner side of the corresponding arc-shaped limiting groove (506). Each of the plugs (4) is provided with a fifth insertion hole (401) at its end, and each of the translation rods (503) is inserted into the inner side of the corresponding fifth insertion hole (401).

4. A modular quick-assembly composite material display rack according to claim 1, characterized in that: The pushing unit (7) includes a base (701), a rotating seat (702) is provided on the upper right side of the base (701), a rotating rod (703) is rotatably connected to the upper part of the rotating seat (702), and a connecting rod (704) is rotatably connected to the front and rear ends of the right side of the rotating rod (703). A guide seat (706) is provided on the upper left side of the base (701), and a translation bolt (705) is slidably provided in the middle of the guide seat (706). The left end of the connecting rod (704) is rotatably connected to the front and rear ends of the right end of the translation bolt (705). An adsorption magnetic plate (707) is fixedly provided on the left side of the base (701).

5. A modular quick-assembly composite material display rack according to claim 1, characterized in that: Each of the connecting blocks (3) has an installation groove (302) on its inner side. Each of the installation grooves (302) has a rubber pad (8) fitted inside. Each of the rubber pads (8) has a protrusion (801) on its outer side. Each of the connecting blocks (3) has an inner groove (303) on its upper inner side. Each of the protrusions (801) is embedded and fixed to the inner side of the inner groove (303) by bolts.

6. A modular quick-assembly composite material display rack according to claim 1, characterized in that: The support unit (9) includes a base plate (901), and a raised layer (902) is provided on the upper part of the base plate (901). An embedded groove (903) is provided on the inner side of the raised layer (902). The shape of the embedded groove (903) matches the bottom shape of the column (1), and the bottom end of the column (1) is engaged and connected to the inner side of the corresponding embedded groove (903).

7. A modular quick-assembly composite material display rack according to claim 1, characterized in that: The cross-sectional shape of the cross frame (2) is U-shaped, and each of the four bottom corners of the shelf (10) is provided with a mounting block (1001), which is engaged with the inner side of the corresponding cross frame (2).

8. A modular quick-assembly composite material display rack according to claim 1, characterized in that: Several rubber rings (601) are equidistantly arranged on the outer side of the insertion block (6). The rubber rings (601) are used to expand and fix the connecting block (3) and the column (1) after the insertion block (6) is pushed into the second insertion hole (104) and the fourth insertion hole (304).

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