Misalignment composite board and spliced board

By adopting a staggered composite board design and multi-layer structure in the composite board, combined with the design of limit screw holes and locking screw holes, the problems of insufficient rigidity and inconvenient splicing of composite boards are solved, and high-strength splicing and convenient assembly are achieved.

CN222921190UActive Publication Date: 2025-05-30XIANGYIN ZHONGYAN NEW MATERIAL TECH CO LTD
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Patent Information

Application Number
CN202421709547.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-19
Publication Date
2025-05-30
Estimated Expiration
2034-07-19

AI Technical Summary

Technical Problem

The overall rigidity of existing composite sheets is difficult to improve, and the splicing is inconvenient and the strength after splicing is insufficient, which cannot meet customers' needs for connection tightening and easy assembly.

Method used

The design of a staggered composite plate is adopted. By setting polymer films, steel diaphragms and protective films on both sides of the foamed plastic core layer, a multi-layer structure is formed, and limit screw holes and locking screw holes are provided on the staggered edges to achieve overlap and fastening connection of adjacent composite plates.

Benefits of technology

It improves the strength of the splicing, facilitates the splicing and assembly of composite boards, meets customers' needs for connection tightening and easy assembly, and solves the problem of loosening of the splicing caused by vibration during transportation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a misaligned composite board and a spliced board, and belongs to the technical field of composite boards, the misaligned composite board comprises a composite board body, the composite board body comprises a foamed plastic core layer, and two opposite sides of the foamed plastic core layer are sequentially provided with a polymeric membrane, a steel membrane and a protective membrane which are mutually connected. And the steel diaphragm and the protective film on one side of the foamed plastic core layer extend to the outer side of the composite board body to form a misalignment part. According to the misaligned composite board, lap joint of the adjacent misaligned composite boards can be achieved by arranging the misaligned parts, and the strength of the splicing position can be improved; meanwhile, the utility model provides the spliced plate which is firm in connection and convenient to assemble.
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Description

Technical Field

[0001] The utility model relates to the technical field of composite plates, and particularly to an offset composite plate. In addition, the utility model also relates to a splicing plate including the above-mentioned offset composite plate. Background Art

[0002] The information provided in this part is for the purpose of generally presenting the background of the present application. To the extent described in this part, the work of the currently named inventors and aspects that may not constitute prior art descriptions at the time of filing are neither expressly nor implicitly considered prior art to the present application.

[0003] In the prior art, the body wall panels and roof panels of box trucks are mostly pure flat steel plates or corrugated steel plates. First, there is a problem of insufficient rigidity and easy deformation. Second, their heat insulation performance is very poor, and additional thermal insulation materials are required. For example, a micro-foamed core layer steel-plastic composite plate disclosed in a Chinese patent with the patent publication number CN103085386A can be used as the body wall panels and door panels of trunk road transport van trailers and semi-trailers (dry cargo compartments), and has characteristics such as low cost, long service life, easy processing, and convenient maintenance.

[0004] However, the existing composite plates have problems that it is difficult to further improve the overall rigidity, the splicing is inconvenient, and the strength of the splicing part of adjacent plates is insufficient after splicing; in addition, it is currently difficult to provide pre-assembled splicing plates, which cannot meet the customer's requirements for splicing plates with firm connection and convenient assembly.

[0005] It should be noted that the information disclosed in the above background art part is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute prior art known to those of ordinary skill in the art. Summary of the Utility Model

[0006] In view of at least one of the above technical problems, the present application provides an offset composite plate, which can realize the lap joint of adjacent offset composite plates by setting an offset part, which is beneficial to improving the strength of the splicing part; at the same time, the present application provides a splicing plate with firm connection and convenient assembly.

[0007] To achieve the above object, the technical solution adopted by the present utility model is:

[0008] An offset composite plate includes a composite plate body. The composite plate body includes a foamed plastic core layer. Protective layers are provided on opposite sides of the foamed plastic core layer. The protective layer includes a polymer film, a steel film sheet, and a protective film that are sequentially arranged and connected in a direction away from the foamed plastic core layer. The steel film sheet and the protective film of the protective layer on at least one side extend to the outside of the composite plate body to form an offset part.

[0009] In one or more embodiments of the described offset composite board, the protective layers on both sides of the foamed plastic core layer are provided with offset portions, and the offset portions of the two protective layers are respectively arranged at opposite ends of the composite board body.

[0010] In one or more embodiments of the described offset composite board, a lapping portion for lapping the offset portion of another offset composite board is provided on the composite board body. A limiting screw hole is formed on the offset portion, and a locking screw hole corresponding to the limiting screw hole is provided on the lapping portion.

[0011] According to another aspect of the present invention, a spliced board is further provided, which includes the above-mentioned offset composite board. The spliced board further includes a first fastener. A plurality of offset composite boards are provided. The offset composite boards are lapped on an adjacent another offset composite board through the offset portions. The first fastener sequentially passes through the offset portion of one of the offset composite boards and a preset connection hole on another offset composite board, thereby connecting and fastening the adjacent two offset composite boards.

[0012] In one or more embodiments of the described spliced board, the spliced board further includes an edge locking mechanism for connecting and fastening the side walls of adjacent two offset composite boards.

[0013] In one or more embodiments of the described spliced board, the edge locking mechanism includes a partition component. The partition component includes a baffle, a partition board and a second fastener. The partition board is vertically connected to the side wall of the baffle. The partition board is clamped between adjacent two offset composite boards. One side of the baffle facing the partition board respectively abuts against the side walls of adjacent two offset composite boards. A plurality of first connection screw holes are formed on the baffle. The second fastener is used to pass through the first connection screw holes and cooperate with preset fastening screw holes on the side walls of the offset composite boards, thereby connecting and fastening the baffle to adjacent two offset composite boards respectively.

[0014] In one or more embodiments of the described spliced board, the edge locking mechanism further includes a limiting member and a third fastener. One end of the partition board away from the baffle extends to the outside of the offset composite board to form an extension portion. The limiting member is used to limit the extension portion. One side of the limiting member facing the partition board is further used to respectively abut against the side walls of adjacent two offset composite boards. A plurality of second connection screw holes are formed on the limiting member. The third fastener is used to pass through the second connection screw holes and cooperate with preset fastening screw holes on the side walls of the offset composite boards, thereby connecting and fastening the limiting member to adjacent two offset composite boards respectively.

[0015] In one or more embodiments of the described spliced board, the limiting member includes an installation platform and a limiting portion. There are two installation platforms. The two installation platforms are respectively arranged on opposite sides of the limiting portion. The two installation platforms respectively abut against the side walls of adjacent two offset composite boards in a one-to-one correspondence. The second connection screw holes are formed on the installation platforms. The limiting portion is used to limit the extension portion.

[0016] In one or more embodiments of the described splicing board, the limiting portion is provided with a limiting groove, and the extending portion of the partition board is embedded in the limiting groove.

[0017] In one or more embodiments of the described splicing board, the limiting portion is provided with a third connecting screw hole communicating with the limiting groove along the direction towards the surface of the extending portion. The edge locking mechanism further includes a fourth fastener, and the fourth fastener is used to cooperate with a preset locking screw hole on the extending portion after passing through the third connecting screw hole, so as to connect and fasten the limiting portion and the extending portion.

[0018] The utility model has the following beneficial effects:

[0019] The offset composite board of the utility model can realize the lapping function when adjacent offset composite boards are spliced by setting the offset portion, which is convenient for splicing adjacent offset composite boards; the offset portion can fit adjacent offset composite boards and play a certain limiting and supporting role, which is beneficial to strengthening the strength of the splicing part. At the same time, the offset composite board forms a multi-layer structure by sequentially arranging a polymer film, a steel film sheet and a protective film connected to each other on both sides of the foamed plastic core layer, further improving the overall strength. Among them, the foamed plastic core layer has high strength as the inner core and can provide good support, while the polymer film can play a bonding role, the steel film sheet can play a role in strengthening rigidity, and the protective film arranged on the outermost layer can play a role in buffering and shielding protection.

[0020] The splicing board of the utility model can realize the fastening connection of adjacent offset composite boards by using the structure of the offset portion and the first fastener, and the assembly is very convenient. Moreover, since the first fastener locks the offset portion and the composite board body, the connection strength is higher, effectively ensuring the strength of the splicing part, realizing the pre-assembled splicing board, and solving the problem that the continuous vibration during transportation is likely to cause the loosening of the splicing part and reduce the splicing strength, meeting the customer's requirements for a splicing board with firm connection and convenient assembly.

[0021] Of course, it is not necessary for any product implementing the utility model to achieve all the above-mentioned advantages at the same time. In addition to the purposes, features and advantages described above, the utility model has other purposes, features and advantages. The following will refer to the drawings to further elaborate on the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings forming a part of this application are used to provide a further understanding of the utility model. The schematic embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an improper limitation to the utility model. In the drawings:

[0023] Figure 1 is a schematic diagram of the overall structure of the composite board body of the preferred embodiment of the utility model;

[0024] Figure 2 It is a schematic diagram of the splicing state of the splicing plates in the preferred embodiment of the present utility model;

[0025] Figure 3 It is a schematic diagram of the structure of the partition component in the preferred embodiment of the present utility model;

[0026] Figure 4 It is a schematic diagram of the structure of the limiting member in the preferred embodiment of the present utility model;

[0027] Figure 5 It is a schematic diagram of the structure of the offset part in the preferred embodiment of the present utility model;

[0028] Figure 6 It is a schematic diagram of the connection between the limiting member and the extension part in the preferred embodiment of the present utility model;

[0029] Legend: 100, composite board body; 101, offset part; 102, protective film; 103, steel film sheet; 104, polymer film; 105, foamed plastic core layer; 1, partition component; 11, baffle; 12, partition; 2, limiting member; 21, installation platform; 22, limiting part; 23, fourth fastener; 3, first fastener; 4, second fastener; 5, third fastener. Detailed implementation manners

[0030] The following will describe the embodiments of the present utility model in detail with reference to the accompanying drawings. However, the present utility model can be implemented in many different ways defined and covered by the following.

[0031] Figure 1 It is a schematic diagram of the overall structure of the composite board body in the preferred embodiment of the present utility model; Figure 2 It is a schematic diagram of the splicing state of the splicing plates in the preferred embodiment of the present utility model; Figure 3 It is a schematic diagram of the structure of the partition component in the preferred embodiment of the present utility model; Figure 4 It is a schematic diagram of the structure of the limiting member in the preferred embodiment of the present utility model; Figure 5 It is a schematic diagram of the structure of the offset part in the preferred embodiment of the present utility model; Figure 6 It is a schematic diagram of the connection between the limiting member and the extension part in the preferred embodiment of the present utility model.

[0032] A kind of offset composite board, comprising a composite board body 100. The composite board body 100 includes a foamed plastic core layer 105. Protective layers are provided on both opposite sides of the foamed plastic core layer 105. The protective layer includes a polymer film 104, a steel film sheet 103 and a protective film 102 which are arranged in sequence and connected to each other along the direction away from the foamed plastic core layer 105. The steel film sheet 103 and the protective film 102 of the protective layer on at least one side extend to the outside of the composite board body 100 to form an offset part 101.

[0033] Here, the meaning of the "offset part 101" refers to a platform structure extending from one side of the composite board body 100. In some embodiments, the offset part 101 is a plate-like structure. The surface of the outermost protective film 102 of the composite board body 100 is flush with the surface of the protective film 102 of the offset part 101.

[0034] In some embodiments, a recessed part is provided on the side of the composite board body 100 opposite to the offset part 101. The recessed part is used to overlap with the offset part 101 when adjacent composite board bodies 100 are spliced, so as to make the surface of the offset part 101 on one side flush with the surface of the composite board body 100 on the other side, achieving a smooth transition at the splicing position, which is beneficial to reducing the unevenness at the splicing position and improving the aesthetics of the spliced plates.

[0035] It should be noted that the foamed plastic core layer 105, the polymer film 104, the steel film sheet 103, and the protective film 102 here are not new materials developed and improved in this application, and will not be elaborated here.

[0036] The offset composite board of the present utility model can achieve the overlapping function when adjacent offset composite boards are spliced by setting the offset part 101, which is convenient for splicing adjacent offset composite boards; the offset part 101 can fit adjacent offset composite boards and play a certain limiting and supporting role, which is beneficial to strengthening the strength of the splicing position. At the same time, the offset composite board forms a multi-layer structure by sequentially arranging the polymer film 104, the steel film sheet 103, and the protective film 102 connected to each other on both sides of the foamed plastic core layer 105, further improving the overall strength. Among them, the foamed plastic core layer 105 has high strength as the inner core and can provide good support, while the polymer film 104 can play a bonding role, the steel film sheet 103 can play a role in strengthening rigidity, and the protective film 102 arranged on the outermost layer can play a role in buffering and shielding protection.

[0037] Preferably, please refer to Figure 2 and Figure 5 As shown, the offset parts 101 are provided on the protective layers on both sides of the foamed plastic core layer 105, and the offset parts 101 of the two protective layers are respectively arranged at opposite ends of the composite board body 100.

[0038] It can be understood that only one side of one end of the composite board body 100 needs to be provided with the offset part 101. When adjacent composite board bodies 100 are spliced, the offset parts 101 at the opposite ends of the adjacent composite board bodies 100 can be staggered up and down to achieve the overlapping of the upper and lower surfaces. The offset part 101 includes the steel film sheet 103, which has relatively high strength to ensure the connection stability during overlapping.

[0039] Preferably, please refer to Figure 2 and Figure 5As shown, the composite board body 100 is provided with a lapping portion for lapping the offset portion 101 of another offset composite board. A limiting screw hole is formed in the offset portion 101, and a locking screw hole corresponding to the limiting screw hole is provided on the lapping portion.

[0040] It can be understood that when adjacent composite board bodies 100 are spliced, through the correspondence between the limiting screw hole on the offset portion 101 and the locking screw hole on the composite board body 100, and by cooperating with fasteners such as bolts or rivets, fast and stable locking connection can be achieved, and the splicing is very convenient.

[0041] According to another aspect of the present invention, a spliced board is further provided, which includes the above-mentioned offset composite board. The spliced board further includes a first fastener 3. There are multiple offset composite boards. The offset composite boards are lapped on the offset portion 101 of an adjacent another offset composite board through the offset portion 101. The first fastener 3 sequentially passes through the offset portion 101 of one of the offset composite boards and a preset connection hole on another offset composite board, thereby connecting and fastening two adjacent offset composite boards.

[0042] The spliced board of the present invention utilizes the structure of the offset portion 101 and cooperates with the first fastener 3 to achieve the fastening connection of adjacent offset composite boards. The assembly is very convenient, and since the first fastener 3 locks the offset portion 101 and the composite board body 100, the strength of the connection and fastening is higher, effectively ensuring the strength of the splicing part, realizing the pre-assembled spliced board, solving the problem that the continuous vibration during transportation is likely to cause the loosening of the splicing part and reducing the splicing strength, and meeting the customer's requirements for a spliced board with firm connection and convenient assembly.

[0043] Preferably, please refer to Figure 2 As shown, the spliced board further includes an edge locking mechanism for connecting and fastening the side walls of two adjacent offset composite boards.

[0044] It can be understood that the edge locking mechanism can connect and fasten the side walls of adjacent offset composite boards, and cooperate with the lapping of the offset portion 101 and the first fastener 3 to achieve the effect of limiting the four sides of the splicing part of adjacent composite board bodies 100, and can effectively enhance the splicing connection strength of adjacent composite board bodies 100.

[0045] Preferably, please refer to Figure 3 and Figure 6As shown in the figure, the edge-locking mechanism includes a partition component 1. The partition component 1 includes a baffle 11, a partition 12, and a second fastener 4. The partition 12 is vertically connected to the side wall of the baffle 11. The partition 12 is clamped between two adjacent offset composite plates. One side of the baffle 11 facing the partition 12 abuts against the side walls of the two adjacent offset composite plates respectively. A plurality of first connection screw holes are formed in the baffle 11. The second fastener 4 is used to pass through the first connection screw holes and cooperate with the preset fastening screw holes on the side walls of the offset composite plates, so as to connect and fasten the baffle 11 to the two adjacent offset composite plates respectively.

[0046] It can be understood that inserting the partition 12 between adjacent offset composite plates can prevent the end faces of the adjacent composite plate bodies 100 from directly contacting and colliding. On the one hand, it can protect the end faces of the composite plate bodies 100 and reduce bump damage. On the other hand, it can also avoid the problem of large misalignment at the splicing joint caused by the uneven end faces of the composite plate bodies 100, which is beneficial to improving the stability of the splicing surface.

[0047] At the same time, the baffle 11 can connect and fasten the side walls of the adjacent composite plate bodies 100. Cooperating with the lapping of the first fastener 3 and the offset part 101, it can effectively strengthen the connection stability of the adjacent composite plate bodies 100.

[0048] Preferably, please refer to Figure 4 and Figure 6 As shown in the figure, the edge-locking mechanism further includes a limiting member 2 and a third fastener 5. One end of the partition 12 away from the baffle 11 extends to the outside of the offset composite plate to form an extension part. The limiting member 2 is used to limit the extension part. One side of the limiting member 2 facing the partition 12 is also used to abut against the side walls of the two adjacent offset composite plates respectively. A plurality of second connection screw holes are formed in the limiting member 2. The third fastener 5 is used to pass through the second connection screw holes and cooperate with the preset fastening screw holes on the side walls of the offset composite plates, so as to connect and fasten the limiting member 2 to the two adjacent offset composite plates respectively.

[0049] It can be understood that after the limiting member 2 limits the extension part, and then the third fastener 5 is used to fasten and connect the limiting member 2 with the side walls of the adjacent composite plate bodies 100 at the same time, which can ensure the installation stability of the partition 12.

[0050] At the same time, it cooperates with the baffle 11 to lock and connect the side walls on the opposite sides of the adjacent composite plate bodies 100, greatly improving the connection stability at the splicing joint and ensuring the splicing strength.

[0051] Preferably, please refer to Figure 1 As shown in the figure, the limiting member 2 includes an installation platform 21 and a limiting part 22. There are two installation platforms 21. The two installation platforms 21 are respectively arranged on the opposite sides of the limiting part 22. The two installation platforms 21 abut against the side walls of the two adjacent offset composite plates one by one. The second connection screw holes are formed in the installation platforms 21. The limiting part 22 is used to limit the extension part.

[0052] It can be understood that the limiting member 2 is respectively connected to the side walls of the adjacent composite board bodies 100 through the mounting platforms 21 on both sides of the limiting portion 22, and at the same time, the extension portion is limited by the limiting portion 22, which can ensure the stability of the installation position of the partition board 12.

[0053] Preferably, please refer to Figure 4 As shown, the limiting portion 22 is provided with a limiting groove, and the extension portion of the partition board 12 is embedded in the limiting groove.

[0054] It can be understood that the limiting cavity can limit the relative two sides of the extension portion, reduce the phenomenon that the extension portion and the partition board 12 are displaced, ensure the stability of the partition board 12, and is beneficial to improving the splicing stability of the adjacent composite board bodies 100.

[0055] Preferably, please refer to Figure 6 As shown, the limiting portion 22 is provided with a third connection screw hole communicating with the limiting groove along the direction towards the surface of the extension portion. The edge locking mechanism further includes a fourth fastener 23. The fourth fastener 23 is used to cooperate with a preset locking screw hole on the extension portion after passing through the third connection screw hole, so as to connect and fasten the limiting portion 22 and the extension portion.

[0056] It can be understood that the limiting member 2 is connected and fastened to the extension portion through the limiting portion 22. The limiting member 2 is simultaneously connected to the side walls of the adjacent composite board bodies 100 through the mounting platforms 21, realizing the connection of the limiting member 2 to both the partition board 12 and the side walls of the composite board bodies 100, effectively ensuring the connection strength of the adjacent composite board bodies 100, and reducing the deformation between the partition board 12 and the adjacent composite board bodies 100, or the deformation between the adjacent composite board bodies 100.

[0057] It should be noted that in this article, the terms "including", "comprising" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0058] In this article, specific examples are used to elaborate on the principles and implementation manners of the present invention. The description of the above examples is only used to help understand the method and its core idea of the present invention. The above is only the preferred implementation manner of the present invention.

[0059] It should be noted that due to the limitedness of literal expression and the objectively existing infinite specific structures, for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements, refinements or variations can also be made, or the above technical features can be combined in an appropriate manner; these improvements, refinements, variations or combinations, or directly applying the concept and technical solution of the utility model to other occasions without improvement, shall all be regarded as within the protection scope of the present utility model.

Claims

1. A staggered composite panel, characterized in that: The invention comprises a composite board body (100), wherein the composite board body (100) comprises a foamed plastic core layer (105), and protective layers are provided on two opposite sides of the foamed plastic core layer (105), wherein the protective layers comprise a polymer film (104), a steel diaphragm (103) and a protective film (102) which are sequentially arranged and interconnected in a direction away from the foamed plastic core layer (105), and the steel diaphragm (103) and the protective film (102) of the protective layer on at least one side extend to the outside of the composite board body (100) to form a staggered edge portion (101).

2. The staggered edge composite panel according to claim 1, characterized in that: The protective layers on both sides of the foamed plastic core layer (105) are provided with staggered edge portions (101), and the staggered edge portions (101) of the two protective layers are respectively arranged at two opposite ends of the composite board body (100).

3. The staggered edge composite panel according to claim 1, characterized in that: The composite plate body (100) is provided with an overlapping portion for overlapping the staggered portion (101) of another staggered composite plate, the staggered portion (101) is provided with a limiting screw hole, and the overlapping portion is provided with a locking screw hole corresponding to the limiting screw hole.

4. A spliced ​​plate, characterized in that: It comprises the staggered composite panels as described in any one of claims 1 to 3, and the spliced ​​panels also include a first fastener (3). There are multiple staggered composite panels, and the staggered composite panels are overlapped on another adjacent staggered composite panel through the staggered portion (101). The first fastener (3) is sequentially inserted into the staggered portion (101) of one of the staggered composite panels and the preset connection holes on the other staggered composite panel, thereby connecting and fastening the two adjacent staggered composite panels.

5. A spliced ​​plate according to claim 4, characterized in that: The spliced ​​plate also includes a locking mechanism, which is used to connect and fasten the side walls of two adjacent staggered edge composite plates.

6. A spliced ​​plate according to claim 5, characterized in that: The locking mechanism comprises a baffle assembly (1), the baffle assembly (1) comprising a baffle (11), a baffle (12) and a second fastener (4), the baffle (12) being vertically connected to the side wall of the baffle (11), the baffle (12) being sandwiched between two adjacent staggered composite plates, the baffle (11) having a side facing the baffle (12) respectively abutting against the side walls of the two adjacent staggered composite plates, the baffle (11) being provided with a plurality of first connecting screw holes, the second fastener (4) being used to pass through the first connecting screw holes and cooperate with preset fastening screw holes on the side walls of the staggered composite plates, thereby respectively connecting and fastening the baffle (11) to the two adjacent staggered composite plates.

7. A spliced ​​plate according to claim 5, characterized in that: The locking mechanism also includes a limiting member (2) and a third fastener (5); one end of the partition (12) away from the baffle (11) extends to the outside of the staggered composite plate to form an extension; the limiting member (2) is used to limit the extension; a side of the limiting member (2) facing the partition (12) is also used to respectively abut against the side walls of two adjacent staggered composite plates; a plurality of second connecting screw holes are provided on the limiting member (2); the third fastener (5) is used to pass through the second connecting screw holes and cooperate with the preset fastening screw holes on the side walls of the staggered composite plate, thereby respectively connecting and fastening the limiting member (2) to the two adjacent staggered composite plates.

8. A spliced ​​plate according to claim 7, characterized in that: The limiting member (2) comprises a mounting platform (21) and a limiting portion (22). Two mounting platforms (21) are provided. The two mounting platforms (21) are arranged on opposite sides of the limiting portion (22). The two mounting platforms (21) abut against the side walls of two adjacent misaligned composite panels in a one-to-one correspondence. The second connecting screw hole is provided on the mounting platform (21). The limiting portion (22) is used to limit the extension portion.

9. A spliced ​​plate according to claim 8, characterized in that: The limiting portion (22) is provided with a limiting groove, and the extended portion of the partition plate (12) is embedded in the limiting groove.

10. A spliced ​​plate according to claim 9, characterized in that: The limiting portion (22) is provided with a third connecting screw hole connected to the limiting groove in a direction toward the surface of the extension portion. The edge locking mechanism also includes a fourth fastener (23). The fourth fastener (23) is used to pass through the third connecting screw hole and cooperate with a locking screw hole preset on the extension portion, thereby connecting and fastening the limiting portion (22) to the extension portion.

Citation Information

Patent Citations

  • Micro foaming core layer steel and plastic composite plate for structure

    CN103085386A