Portable modular paperboard assembled exhibition stand

Abstract

The utility model discloses a portable modularized paperboard assembled exhibition stand, and belongs to the technical field of movable exhibition stands. The exhibition stand comprises a folding main board combination and a connecting piece combination which are composed of paperboards, the folding main board combination comprises a first main board, a second main board, a third main board and a fourth main board, and the connecting piece combination comprises a first connecting piece, a second connecting piece, a third connecting piece and a seventh connecting piece. The folding auxiliary plate combination is used for heightening, and the folding sealing plate combination is used for sealing the back face of the main plate. A television cabinet combination is further included. According to the utility model, through the different folding main plates, folding auxiliary plates or folding sealing plates which are modularly arranged and the matched use of the connecting pieces with different shapes and functions, the flexible assembly of the modular paperboards can be realized, and the formed exhibition stand has various styles, is flexible and convenient to assemble, has good stability, meets different exhibition requirements, is easy to carry and low in cost, and is suitable for popularization and application. Market requirements are met, and popularization and use are facilitated. And the television cabinet is combined, so that the exhibition stand requirement is further met, the exhibition effect is improved, and the user experience is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of movable exhibition stands, in particular to a portable modular cardboard assembly exhibition stand. Background Art

[0002] With the development of the economy and the increasing business exchanges, there are more and more forms of exhibitions and sales, which put forward more requirements on the construction speed and transportation convenience of exhibition booths. At present, most of the existing exhibition booths are made of wooden structures and assembled by wooden boards. The wooden boards are prefabricated by the manufacturer and transported to the site, where they are assembled or assembled by nails. Not only are the wooden boards of this booth large in size and difficult to transport, but they will also cause a lot of waste of wood after use, which directly causes the cost of exhibitors to rise; and because the splicing structures of customized booths are different, the assemblers are not skilled enough during assembly, the splicing speed is low, and it is very easy to cause damage, which affects the normal progress of the exhibition, and it is impossible for one person to complete the construction work, that is, the construction efficiency is low and the cost is high.

[0003] It can be seen that the above existing assembled exhibition stands still have inconveniences and defects in structure, method and use, and are in urgent need of further improvement. How to create a new portable modular cardboard assembly exhibition stand that can be easily and conveniently built through standard modular cardboard settings, easy to assemble, light in weight, easy to carry, and with various assembly styles and flexible settings to meet different needs of exhibition stands has become a goal that the current industry urgently needs to improve. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a portable modular cardboard assembly exhibition stand, which can be simply and conveniently built through the setting of standard modular cardboard, is easy to assemble and carry, and has various assembly styles and flexible settings to meet different needs of the exhibition stand, thereby overcoming the shortcomings of existing assembled exhibition stands.

[0005] In order to solve the above technical problems, the utility model provides a portable modular cardboard assembly exhibition stand, comprising a folding mainboard assembly and a connecting piece assembly, wherein the folding mainboard assembly and the connecting piece assembly are both formed of cardboard;

[0006] The folding main board assembly comprises a first main board and a second main board, wherein the first main board adopts a symmetrical U-shaped folding board, and the folding roots of the two folding vertical edges of the symmetrical U-shaped folding board are each provided with at least two first connection holes arranged along the folding line; the second main board, as the edge main board of the assembled exhibition stand, adopts an asymmetrical U-shaped folding board, wherein the folding root of one vertical edge is provided with a second connection hole corresponding to the first connection hole, and the outer edge of the other vertical edge is provided with a folded edge;

[0007] The connector assembly includes a first connector, a second connector and a third connector. A first slot is provided on one side of the first connector. The first slot is used to plug two adjacent connecting holes when two adjacent mainboards are arranged side by side, so as to realize the connection and fixation between the adjacent mainboards; two second slots are provided on one side of the second connector. The two second slots respectively complete the connection between the two folded vertical edges of the first mainboard and its adjacent vertical edges, so as to realize the vertical edge positioning between the adjacent mainboards; a third slot and a fourth slot are respectively provided on two opposite side edges of the third connector. The third slot is used to complete the connection between the folded vertical edge of one side of the second mainboard and its adjacent vertical edge, so as to realize the folded vertical edge positioning of one side of the second mainboard, and the fourth slot is used to insert the folded edge of the second mainboard, so as to realize the vertical edge positioning with the folded edge of the second mainboard.

[0008] As a further improvement, the folding main board assembly further includes a third main board, the third main board serving as the inner corner board of the assembled exhibition stand, adopting a symmetrical W-shaped folding board, and the folding roots of the two folding vertical edges of the symmetrical W-shaped folding board are both provided with third connection holes corresponding to the first connection holes;

[0009] The connector assembly also includes a fourth connector, which adopts an L-shaped structure and is used to be arranged on the outside of the corner of the third main board, and fifth slots are respectively provided on the two inner sides of the L-shaped structure. The fifth slots are used to complete the folded vertical edge of the third main board and the connection with the vertical edge of the adjacent main board to achieve the inner corner positioning and vertical edge positioning of the third main board.

[0010] As a further improvement, the folding main board assembly also includes a fourth main board, which serves as a positive corner panel of the assembled booth and adopts a symmetrical C-shaped right-angle folding board. The folding roots of the two folding vertical edges of the symmetrical C-shaped right-angle folding board are provided with fourth connecting holes corresponding to the first connecting holes.

[0011] Further improvements include a TV cabinet combination, which includes a main support plate, a side support plate and a bottom fixing plate, the main support plate adopts a T-shaped structure, the horizontal plate of the T-shaped structure is used to fix the TV screen, and a plurality of connecting protrusions are respectively provided on both sides of the vertical plate of the T-shaped structure; a plurality of connecting card holes corresponding to the connecting card holes are provided on the side support plates, the side support plates include two, the two side support plates are respectively arranged on both sides of the vertical plate of the T-shaped structure, for vertically fixing the main support plate, and the tops of the two side support plates are used to support the TV screen from the bottom; the upper edge of the bottom fixing plate is provided with two fixing grooves, the lower edge of the side support plate is provided with fixing snap-ons corresponding to the fixing grooves on the bottom fixing plate, and the bottom fixing plate is used to ensure that the positions of the two side support plates and the main support plate are fixed.

[0012] A further improvement includes a folding sub-plate assembly for heightening, wherein the folding sub-plate assembly includes a first sub-plate and a second sub-plate that are respectively consistent with the first main plate and the second main plate in structure, the first sub-plate and the second sub-plate have U-shaped folding plates with corresponding lower connecting grooves at the bottom, and the first main plate and the second main plate have U-shaped folding plates with corresponding upper connecting grooves at the top;

[0013] It also includes a fifth connecting member, which adopts an H-shaped structure. The upper notch of the H-shaped structure is used to plug two adjacent lower connecting slots of adjacent sub-boards, and the lower notch of the H-shaped structure is used to plug two adjacent upper connecting slots of adjacent mainboards.

[0014] As a further improvement, the heights of the first sub-board and the second sub-board are smaller than the heights of the first main board and the second main board.

[0015] As a further improvement, the width of the first sub-board is twice the width of the first main board.

[0016] As a further improvement, the bottom and top of the U-shaped folding plates of the first sub-plate and the second sub-plate are provided with the lower connecting groove, and the top and bottom of the U-shaped folding plates of the first main plate and the second main plate are provided with the upper connecting groove.

[0017] As a further improvement, the edges of the two folded vertical edges of the first mainboard and one folded vertical edge of the second mainboard are each provided with at least two sockets with uniform positions, and the sockets are correspondingly inserted with the second slot or the third slot.

[0018] A further improvement includes a folding sealing plate assembly for sealing the back of the main board, the folding sealing plate assembly includes a first sealing plate and a second sealing plate that are respectively consistent in structure and size with the first main board and the second main board, and the first sealing plate and the second sealing plate are respectively arranged opposite to the first main board and the second main board;

[0019] The connecting member combination also includes a sixth connecting member, and two sixth inner slots and two sixth outer slots are respectively provided on the opposite side edges of the sixth connecting member. The functions of the two sixth inner slots are the same as those of the two second slots, and the two sixth outer slots are used to plug in the folded vertical edges of the first covering plate and the second covering plate fixed on the opposite sides of the first main board and the second main board to form a closed wall panel assembly booth.

[0020] After adopting such a design, the utility model has at least the following advantages:

[0021] 1. The portable modular cardboard assembly booth of the utility model can realize booth construction simply and conveniently through the setting of standard modular cardboard and different connecting parts. The assembly is convenient and fast, and one person can complete the booth assembly. It is light in weight, easy to carry and move, flexible in assembly, high in efficiency and low in cost.

[0022] 2. By setting the inner corner panels and the outer corner panels, the shape of the booth can be further expanded and diversified to meet the different needs of the booth.

[0023] 3. The TV cabinet combination can be embedded in the booth to ensure the stable installation of the TV screen, improve the practicality and functionality of the booth, and enhance the user experience.

[0024] 4. The folding sub-board combination is provided to meet the requirements of the booth height, and the fifth connecting piece is provided to ensure a stable connection between the lower booth and the upper elevated booth, thereby meeting the requirements of the elevated booth.

[0025] 5. A folding cover assembly is provided to close the connection structure on the back of the main board, making the booth more beautiful and more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The above is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0027] Figure 1 It is a front schematic diagram of the overall structure of the first embodiment of the modular cardboard assembly exhibition stand of the utility model.

[0028] Figure 2 It is a schematic diagram of the overall structure of the first embodiment of the modular cardboard assembly exhibition stand of the utility model.

[0029] Figure 3 It is a schematic diagram of the structure of the first main board in the modular cardboard assembly exhibition stand of the utility model.

[0030] Figure 4 It is a schematic diagram of the structure of the second main board in the modular cardboard assembly exhibition stand of the utility model.

[0031] Figure 5 It is a schematic diagram of the structure of the third main board in the modular cardboard assembly exhibition stand of the utility model.

[0032] Figure 6 It is a schematic diagram of the structure of the first connecting piece in the modular cardboard assembly exhibition stand of the utility model.

[0033] Figure 7 It is a schematic diagram of the structure of the second connecting piece in the modular cardboard assembly exhibition stand of the utility model.

[0034] Figure 8 It is a schematic diagram of the structure of the third connecting piece in the modular cardboard assembly exhibition stand of the utility model.

[0035] Fig. 9 It is a schematic diagram of the structure of the fourth connecting piece in the modular cardboard assembly exhibition stand of the utility model.

[0036] Fig.10 It is a front schematic diagram of the overall structure of the second embodiment of the modular cardboard assembly exhibition stand of the utility model.

[0037] Fig.11 It is a schematic diagram of the overall structure of the second embodiment of the modular cardboard assembly exhibition stand of the utility model.

[0038] Fig.12 It is a schematic diagram of the first sub-board structure in the modular cardboard assembly exhibition stand of the utility model.

[0039] Fig.13 It is another structural schematic diagram of the first sub-board in the modular cardboard assembly exhibition stand of the utility model.

[0040] Fig.14 It is a schematic diagram of the second sub-board structure in the modular cardboard assembly exhibition stand of the utility model.

[0041] Fig.15 It is a schematic diagram of the third sub-board structure in the modular cardboard assembly exhibition stand of the utility model.

[0042] Fig.16 It is a schematic diagram of the structure of the fifth connecting piece in the modular cardboard assembly exhibition stand of the utility model.

[0043] Fig.17 This is a schematic diagram of the structure of the fourth main board in the third embodiment of the modular cardboard assembly exhibition stand of the utility model.

[0044] Fig.18 This is a schematic diagram of the fourth sub-board structure in the third embodiment of the modular cardboard assembly exhibition stand of the utility model.

[0045] Fig.19 It is a schematic diagram of the application structure of the fourth main board in the third embodiment of the modular cardboard assembly exhibition stand of the utility model.

[0046] Fig. 20 It is a front schematic diagram of the overall structure of the fourth embodiment of the modular cardboard assembly exhibition stand of the utility model.

[0047] Fig.21 It is a schematic diagram of the overall structure of the fourth embodiment of the modular cardboard assembly exhibition stand of the utility model.

[0048] Fig. 22 It is a schematic diagram of the structure of the sixth connecting piece in the modular cardboard assembly exhibition stand of the utility model.

[0049] Fig.23 It is a schematic diagram of the structure of the seventh connecting piece in the modular cardboard assembly exhibition stand of the utility model.

[0050] Fig.24 It is a schematic diagram of the overall structure of the fourth embodiment of the modular cardboard assembly exhibition stand of the utility model.

[0051] Fig.25 It is a schematic diagram of the overall structure of the TV cabinet combination in the fifth embodiment of the modular cardboard assembly exhibition stand of the utility model.

[0052] Fig.26 It is a structural exploded schematic diagram of the TV cabinet combination in the fifth embodiment of the modular cardboard assembly exhibition stand of the utility model. DETAILED DESCRIPTION

[0053] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art. The specific embodiments are as follows.

[0054] Embodiment 1

[0055] See attached Figure 1 and 2 As shown, the portable modular cardboard assembly exhibition stand of this embodiment includes a foldable mainboard assembly 1 and a connector assembly 2. The foldable mainboard assembly 1 and the connector assembly 2 are both formed of cardboard, which is light, easy to carry and easy to operate.

[0056] The folding mainboard assembly 1 comprises a first mainboard 11, a second mainboard 12 and a third mainboard 13. The first mainboard 11 is a symmetrical U-shaped folding board. Figure 3 As shown. The folding roots of the two folded vertical edges of the symmetrical U-shaped folding plate are each provided with three first connection holes 111 arranged along the folding line. The three first connection holes 111 can be evenly distributed or unevenly distributed. The second main board 12 is used as the edge main board of the assembled exhibition stand, and adopts an asymmetrical U-shaped folding board, as shown in the attached Figure 4 The folded root of one vertical edge of the second main board 12 is provided with a second connection hole 121 corresponding to the first connection hole 111, and the outer edge of the other vertical edge is provided with a folded edge 122. The third main board 13 is used as the inner corner board of the assembled exhibition stand, and adopts a symmetrical W-shaped folded board, as shown in the attached Figure 5The folding roots of the two folding vertical edges of the symmetrical W-shaped folding plate are both provided with third connecting holes 131 corresponding to the first connecting holes 111 .

[0057] The connector assembly 2 includes a first connector 21, a second connector 22, a third connector 23 and a fourth connector 24. Figure 6 As shown, a first slot 211 is provided on one side of the first connector 21. The first slot 211 is used to connect two corresponding connection holes when two adjacent motherboards are arranged side by side, so as to achieve connection and fixation between adjacent motherboards. Figure 7 As shown, two second slots 221 are provided on one side of the second connecting member 22, and the two second slots 221 respectively complete the connection between the two folded vertical edges of the first main board 11 and the adjacent vertical edges thereof, so as to realize the vertical edge positioning between the adjacent main boards. Figure 8 As shown, the third slot 231 and the fourth slot 232 are respectively provided on two opposite sides of the third connecting member 23. The third slot 231 is used to complete the connection between the folded edge of one side of the second main board 12 and the adjacent main board edge, so as to realize the positioning of the folded edge of one side of the second main board 12. The fourth slot 232 is used to insert the edge of the return folded edge 122 of the second main board 12, so as to realize the positioning of the return folded edge of the second main board 12. Fig. 9 As shown, the fourth connecting member 24 adopts an L-shaped structure, which is used to be arranged on the outside of the corner of the third main board 13, and the two inner sides of the L-shaped structure are respectively provided with fifth slots 241, and the fifth slots 241 are used to complete the connection between the two folded vertical edges of the third main board 13 and the vertical edges of the adjacent main board, so as to realize the 90-degree positioning of the inner angle and the vertical edge positioning of the third main board 13.

[0058] Among them, the slot widths of the first slot 211, the second slot 221, the third slot 231, and the fifth slot 241 are all equal to or slightly greater than twice the thickness of the vertical edge of the mainboard, so as to achieve the fixation of the opposite edges of each connecting member; the slot width of the fourth slot 232 is equal to or slightly greater than the thickness of the folded edge 122, so as to effectively fix the folded edge.

[0059] Preferably, in this embodiment, the two folded vertical edges of the first main board 11, the third main board 13, and the edge of the folded vertical edge on one side of the second main board 12 are all provided with three uniformly positioned sockets 100, and the sockets 100 are correspondingly interlaced with the second slot 221, the third slot 231, and the fifth slot 241, thereby achieving a better fixing effect.

[0060] Through the coordinated use of the main boards of the foldable main board assembly 1 and the connectors of the connector assembly 2, the following can be achieved: Figure 1 , 2Of course, according to actual needs, different numbers of modular mainboards and modular connectors can be used to assemble different styles of booths, such as a flat booth that does not require corners, a U-shaped booth that requires two inner corners, and so on.

[0061] Embodiment 2

[0062] See attached Fig.10 and 11 As shown, the difference between this embodiment and the first embodiment is that the folding main plate assembly 1 also includes a folding sub-plate assembly for heightening.

[0063] The folding sub-panel assembly comprises a first sub-panel 11', a second sub-panel 12' and a third sub-panel 13' which are respectively consistent with the overall structure of the first main board 11, the second main board 12 and the third main board 13. Fig.12 , 14 , 15. In addition, the bottom of the folding plate of the first sub-plate 11', the second sub-plate 12' and the third sub-plate 13' are all provided with a lower connecting groove 200' at a corresponding position, and the top of the folding plate of the first main plate 11, the second main plate 12 and the third main plate 13 are all provided with an upper connecting groove 200 at a corresponding position, as shown in the attached Figure 3-5 shown.

[0064] This embodiment also includes a fifth connecting member 25. Fig.16 As shown, the fifth connector 25 adopts an H-shaped structure, the upper notch 251 of the H-shaped structure is used to plug two adjacent lower connection slots 200' of adjacent secondary boards, and the lower notch 252 of the H-shaped structure is used to plug two adjacent upper connection slots 200 of adjacent main boards. That is, the fifth connector 25 can realize the connection between the lower main board assembly and the upper secondary board assembly, meeting the requirement of increasing the height of the exhibition stand.

[0065] Preferably, the height of each sub-board may be smaller than the height of each corresponding main board, thereby improving the safety of the heightened booth.

[0066] In addition, in this embodiment, the width of the first sub-board 11" can be set to twice the width of the first main board 11. Fig.13 As shown, it can not only meet the connection requirements of the upper and lower layers, but also reduce the number of cardboard pieces and improve assembly efficiency.

[0067] More preferably, in this embodiment, the bottom and top of the folding plate of each sub-plate may be provided with the lower connecting groove 200', and the top and bottom of the folding plate of each main plate may be provided with the upper connecting groove 200 to meet the assembly flexibility of the components and facilitate operation.

[0068] Embodiment 3

[0069] The difference between this embodiment and the first embodiment is that the foldable mainboard assembly 1 includes a fourth mainboard 14, as shown in the attached Fig.17 The fourth main board 14 is used as the outer corner board of the assembled exhibition stand and is a symmetrical C-shaped right-angle folding board. The folding roots of the two folded vertical edges of the symmetrical C-shaped right-angle folding board are both provided with fourth connection holes 141 corresponding to the first connection holes 111 .

[0070] The first slot 211 of the first connecting member 21 is used to complete the connection between the folded vertical edge of the fourth main board 14 and the vertical edge of the adjacent main board; the second slot 221 of the second connecting member 22 is used to complete the connection between the fourth main board 14 and the adjacent vertical edges when the main board is arranged side by side, so as to realize the positioning of the two folded vertical edges of the fourth main board 14.

[0071] By combining the fourth main board 14 with the first main board 11 and the second main board 12 in this embodiment and connecting them through a connecting piece, a corner exhibition stand with a positive angle can be realized to meet actual needs. Of course, any combination of the first main board 11, the second main board 12, the third main board 13 and the fourth main board 14 can also be realized as needed, such as forming an attached Fig.19 The U-shaped booth shown has a storeroom with a positive corner.

[0072] Preferably, a fourth sub-board 14' corresponding to the fourth main board 14 may also be included, as shown in the attached Fig.18 As shown in the folding sub-board assembly described in the second embodiment, the fourth sub-board 14' can be connected to the connecting grooves of the fourth main board 14 below it through the connecting grooves at both ends thereof through the fifth connecting member 25 to form a raised positive corner booth.

[0073] Embodiment 4

[0074] See attached Figures 20 to 21 As shown, the difference between this embodiment and the first embodiment is that the booth further includes a folding sealing plate assembly for sealing the back of the main board. The folding sealing plate assembly includes sealing plates that are consistent in structure and size with each main board and each auxiliary board. Each sealing plate is arranged opposite to the corresponding main board or auxiliary board, and the inner corner corner plate is arranged opposite to the outer corner corner plate at the corner.

[0075] The connection between the cover plate and the main plate or the auxiliary plate is achieved through the sixth connecting member 26 and the seventh connecting member 27. Fig. 22 As shown, two sixth inner slots 261 and a sixth outer slot 262 are respectively provided on the opposite sides of the sixth connecting member 26. The sixth inner slot 261 has the same function as the second slot 221, and realizes the vertical edge connection between the main board and the auxiliary board. The sixth outer slot 262 is used to fix the sealing plate corresponding to each main board and auxiliary board on the opposite side of the main board to form a closed wall panel assembly booth. Fig.23As shown, the structure of the seventh connecting member 27 is similar to that of the fourth connecting member 24, except that, in addition to the two seventh inner slots 271, it also includes two correspondingly arranged seventh outer slots 272. The seventh inner slot 271 has the same function as the fifth slot 241, and is used to achieve the connection between the third main board 13 and the adjacent main board, and the seventh outer slot 272 is used to achieve the outer periphery of the outer corner plate relative to the inner corner plate, so as to achieve the closure of the corner of the booth. The specific connection method is shown in the attached Fig.24 shown.

[0076] Embodiment 5

[0077] See attached Fig.25 and 26 As shown, the present embodiment is different from the fourth embodiment in that it further comprises a TV cabinet assembly 3. The TV cabinet assembly 3 comprises a main support plate 31, a side support plate 32 and a bottom fixing plate 33.

[0078] The main support plate 31 adopts a T-shaped structure, and the upper horizontal plate 311 of the T-shaped structure is used to fix the TV screen. The lower vertical plate 312 of the T-shaped structure is provided with a plurality of connection protrusions 3121 on both sides. The side support plate 32 is provided with a plurality of connection holes 321 corresponding to the connection protrusions 3121. The side support plate 32 includes two side support plates 32, which are respectively arranged on both sides of the vertical plate of the T-shaped structure, and are used to vertically fix the main support plate 31, and the tops of the two side support plates 32 are used to support the TV screen from the bottom to ensure the stable installation of the TV screen.

[0079] The upper edge of the bottom fixing plate 33 is provided with two fixing grooves 331, and the lower edge of the side support plate 32 is provided with fixing snap-fits 322 corresponding to the fixing grooves 331 on the bottom fixing plate 33. The bottom fixing plate 33 is used to prevent the side support plate 32 from tilting, and ensure that the positions of the two side support plates 32 and the main support plate 31 are fixed.

[0080] The TV cabinet assembly 3 can be embedded in the exhibition stand of any of the above embodiments as required, such as occupying the position space of one of the main boards, thereby improving the practicality and functionality of the exhibition stand and enhancing the user experience.

[0081] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features thereof may be combined with each other.

[0082] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Those skilled in the art may make some simple modifications, equivalent changes or modifications using the technical contents disclosed above, which are all within the protection scope of the present invention.

Claims

1. A portable modular cardboard assembly exhibition stand, characterized in that: It includes a foldable mainboard assembly and a connecting piece assembly, wherein the foldable mainboard assembly and the connecting piece assembly are both formed of paperboard; The folding main board assembly comprises a first main board and a second main board, wherein the first main board adopts a symmetrical U-shaped folding board, and the folding roots of the two folding vertical edges of the symmetrical U-shaped folding board are each provided with at least two first connection holes arranged along the folding line; the second main board, as the edge main board of the assembled exhibition stand, adopts an asymmetrical U-shaped folding board, wherein the folding root of one vertical edge is provided with a second connection hole corresponding to the first connection hole, and the outer edge of the other vertical edge is provided with a folded edge; The connector assembly includes a first connector, a second connector and a third connector. A first slot is provided on one side of the first connector. The first slot is used to plug two adjacent connecting holes when two adjacent mainboards are arranged side by side, so as to realize the connection and fixation between the adjacent mainboards; two second slots are provided on one side of the second connector. The two second slots respectively complete the connection between the two folded vertical edges of the first mainboard and its adjacent vertical edges, so as to realize the vertical edge positioning between the adjacent mainboards; a third slot and a fourth slot are respectively provided on two opposite side edges of the third connector. The third slot is used to complete the connection between the folded vertical edge of one side of the second mainboard and its adjacent vertical edge, so as to realize the folded vertical edge positioning of one side of the second mainboard, and the fourth slot is used to insert the folded edge of the second mainboard, so as to realize the vertical edge positioning with the folded edge of the second mainboard.

2. The portable modular cardboard assembly exhibition stand according to claim 1, characterized in that: The folding main board assembly further includes a third main board, which is used as a corner board of the assembled exhibition stand and is a symmetrical W-shaped folding board. The folding roots of the two folding vertical edges of the symmetrical W-shaped folding board are both provided with third connection holes corresponding to the first connection holes; The connector assembly also includes a fourth connector, which adopts an L-shaped structure and is used to be arranged on the outside of the corner of the third main board, and fifth slots are respectively provided on the two inner sides of the L-shaped structure. The fifth slots are used to complete the folded vertical edge of the third main board and the connection with the vertical edge of the adjacent main board to achieve the inner corner positioning and vertical edge positioning of the third main board.

3. The portable modular cardboard assembly exhibition stand according to claim 1 or 2, characterized in that: The folding main board assembly also includes a fourth main board, which serves as the outer corner panel of the assembled exhibition stand and adopts a symmetrical C-shaped right-angle folding board. The folding roots of the two folding vertical edges of the symmetrical C-shaped right-angle folding board are both provided with fourth connecting holes corresponding to the first connecting holes.

4. The portable modular cardboard assembly exhibition stand according to claim 1 or 2, characterized in that: It also includes a TV cabinet combination, which includes a main support plate, a side support plate and a bottom fixing plate, the main support plate adopts a T-shaped structure, the horizontal plate of the T-shaped structure is used to fix the TV screen, and a plurality of connecting protrusions are respectively provided on both sides of the vertical plate of the T-shaped structure; a plurality of connecting card holes corresponding to the connecting card holes are provided on the side support plates, the side support plates include two, the two side support plates are respectively arranged on both sides of the vertical plate of the T-shaped structure, and are used to vertically fix the main support plate, and the tops of the two side support plates are used to support the TV screen from the bottom; the upper edge of the bottom fixing plate is provided with two fixing grooves, the lower edge of the side support plate is provided with fixing snap-ons corresponding to the fixing grooves on the bottom fixing plate, and the bottom fixing plate is used to ensure that the positions of the two side support plates and the main support plate are fixed.

5. The portable modular cardboard assembly exhibition stand according to claim 1, characterized in that: It also includes a folding sub-plate assembly for heightening, the folding sub-plate assembly includes a first sub-plate and a second sub-plate that are respectively consistent with the first main plate and the second main plate in structure, the bottom of the U-shaped folding plates of the first sub-plate and the second sub-plate are both provided with lower connecting grooves at corresponding positions, and the top of the U-shaped folding plates of the first main plate and the second main plate are both provided with upper connecting grooves at corresponding positions; It also includes a fifth connecting member, which adopts an H-shaped structure. The upper notch of the H-shaped structure is used to plug two adjacent lower connecting slots of adjacent sub-boards, and the lower notch of the H-shaped structure is used to plug two adjacent upper connecting slots of adjacent mainboards.

6. The portable modular cardboard assembly exhibition stand according to claim 5, characterized in that: The heights of the first sub-board and the second sub-board are smaller than the heights of the first main board and the second main board.

7. The portable modular cardboard assembly exhibition stand according to claim 5, characterized in that: The width of the first sub-board is twice the width of the first main board.

8. The portable modular cardboard assembly exhibition stand according to claim 5, characterized in that: The bottom and top of the U-shaped folding plates of the first sub-plate and the second sub-plate are both provided with the lower connecting groove, and the top and bottom of the U-shaped folding plates of the first main plate and the second main plate are both provided with the upper connecting groove.

9. The portable modular cardboard assembly exhibition stand according to claim 1, characterized in that: The edges of the two folded vertical edges of the first mainboard and one folded vertical edge of the second mainboard are each provided with at least two sockets with uniform positions, and the sockets are correspondingly inserted with the second slot or the third slot.

10. The portable modular cardboard assembly exhibition stand according to claim 1 or 9, characterized in that: Also included is a folding sealing plate assembly for sealing the back of the main board, the folding sealing plate assembly includes a first sealing plate and a second sealing plate that are consistent in structure and size with the first main board and the second main board, respectively, and the first sealing plate and the second sealing plate are arranged opposite to the first main board and the second main board, respectively; The connecting member combination also includes a sixth connecting member, and two sixth inner slots and two sixth outer slots are respectively provided on the opposite side edges of the sixth connecting member. The functions of the two sixth inner slots are the same as those of the two second slots, and the two sixth outer slots are used to plug in the folded vertical edges of the first covering plate and the second covering plate fixed on the opposite sides of the first main board and the second main board to form a closed wall panel assembly booth.

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