Quick parking apron splicing structure

Abstract

The utility model provides a splicing structure of a quick parking apron. The splicing structure comprises a plurality of splicing plates of the same structure, each splicing plate is composed of an upper plate body and a lower plate body which are oppositely arranged up and down, the structures of the upper plate bodies and the lower plate bodies are consistent, and the upper plate bodies and / or the lower plate bodies comprise plate bodies, connecting parts and splicing parts, and the connecting parts and the splicing parts are arranged on the plate bodies; the connecting part is composed of a grating formed by transverse convex ribs and longitudinal convex ribs which are arranged on the plate body; the splicing part is arranged on the periphery of the connecting part, the splicing part comprises a forward splicing part and a reverse splicing part, and the plurality of splicing plates are spliced through the forward splicing part and the reverse splicing part so as to be connected into a whole.

Description

Technical Field

[0001] The utility model relates to the field of aprons, and in particular to a fast apron splicing structure. Background Art

[0002] With the rapid development of aviation today, small and medium-sized rotorcraft (hereinafter referred to as helicopters) have more and more possible applications in emergency rescue, rapid reconnaissance, beach landing and other scenarios. However, the landing and landing of helicopters have high requirements for the ground, and the parking area cannot be popularized due to its own shortcomings such as high construction cost, long construction time, unstable site and unclear target.

[0003] The rapid apron is a temporary apron laid out when there is no airport. It can meet the landing and take-off needs of small and medium-sized rotorcraft and can be used as a temporary parking space.

[0004] The aprons currently used are mostly made of large flat plates made of composite materials, which are connected in the middle by bolts, adhesives, etc. In this way, the larger the single plate used, the better, because this can reduce the number of intermediate connectors. However, the larger the single plate, the more difficult it is to transport, carry and install. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides a rapid apron splicing structure, which can be easily transported, carried, installed, connected, fixed and disassembled, can be used flexibly, and can be quickly spliced ​​into an apron of a required size.

[0006] The utility model provides a fast apron splicing structure, the splicing structure comprises a plurality of splicing plates with the same structure, the splicing plate consists of an upper plate body and a lower plate body which are arranged opposite to each other up and down, the upper plate body and the lower plate body have the same structure, the upper plate body and / or the lower plate body comprises: a plate body and a connecting part and a splicing part arranged on the plate body; the connecting part is composed of a grid formed by transverse convex ribs and longitudinal convex ribs arranged on the plate body; the splicing part is arranged around the connecting part, the splicing part comprises a forward splicing part and a reverse splicing part, and a plurality of the splicing plates are spliced ​​by the forward splicing part and the reverse splicing part to be connected into one.

[0007] Optionally, the forward splicing portion includes a first transverse splicing portion and a first longitudinal splicing portion, the first transverse splicing portion is formed by the transverse convex rib on the lower plate body extending toward the first side of the splicing plate, and the first longitudinal splicing portion is formed by the longitudinal convex rib on the lower plate body extending toward the second side of the splicing plate;

[0008] The reverse splicing portion includes a second transverse splicing portion and a second longitudinal splicing portion, wherein the second transverse splicing portion is formed by the transverse convex rib on the upper plate body extending toward the third side of the splicing plate, and the second longitudinal splicing portion is formed by the longitudinal convex rib on the upper plate body extending toward the fourth side of the splicing plate.

[0009] Optionally, the forward joint portion includes a first transverse joint portion and a first longitudinal joint portion, wherein the first transverse joint portion is formed by the transverse convex ribs on the lower plate body extending respectively to the front half of the first side and the rear half of the third side of the splicing plate, and the first longitudinal joint portion is formed by the longitudinal convex ribs on the lower plate body extending to the second side of the splicing plate;

[0010] The reverse splicing portion includes a second transverse splicing portion and a second longitudinal splicing portion, the second transverse splicing portion is formed by the transverse convex rib on the upper plate body extending to the rear half of the first side and the front half of the third side of the splicing plate, and the second longitudinal splicing portion is formed by the longitudinal convex rib on the upper plate body extending to the fourth side of the splicing plate.

[0011] Optionally, the forward joint portion includes a plurality of trapezoidal protrusions arranged on the second side and the third side of the connecting portion of the lower plate body, the trapezoidal protrusions are arranged at intervals, and the distance between each of the trapezoidal protrusions is equal to the width of the top surface of the trapezoidal protrusion;

[0012] The reverse splicing portion includes a plurality of trapezoidal protrusions arranged on the first side and the fourth side of the connecting portion of the upper plate body, the trapezoidal protrusions are arranged at intervals, and the distance between each of the trapezoidal protrusions is equal to the width of the top surface of the trapezoidal protrusion.

[0013] Furthermore, the trapezoidal protrusion of the forward splicing portion of the first splicing plate of the two adjacent splicing plates is inserted into the interval of the trapezoidal protrusion of the reverse splicing portion of the second splicing plate, thereby splicing the two adjacent splicing plates.

[0014] Furthermore, the transverse convex ribs and the longitudinal convex ribs forming the grid on the upper plate body and the lower plate body are arranged correspondingly and connected into one body by welding.

[0015] Furthermore, oblique convex ribs are arranged between the grilles.

[0016] Furthermore, the splicing structure further comprises a locking device, and the locking device is used to lock the splicing structure at two ends of the overall splicing structure after the plurality of splicing plates are spliced.

[0017] The utility model provides a rapid helipad splicing structure. The splicing structure is made of splicing plates of exactly the same shape and size, that is, splicing plates of the same specification. The splicing plates do not need to distinguish between the front and back sides, and the installation process does not need to consider the left and right order. The overall splicing process does not require bolts or other connectors, and there is no need to use connection methods such as adhesive welding, which is also convenient for subsequent disassembly operations. Due to the ease of installation and versatility, the splicing plates can be made into any size and thickness according to the conditions of use, and because of the hollow grille structure, it can reduce weight and increase thickness to the greatest extent without affecting the strength, and can bear more weight and reduce deformation, so as to cope with more problems such as uneven ground and soft geological conditions. In addition, the use of different splicing structure can cope with the needs of splicing plates of different sizes, and provide rapid helipads of different specifications for different helicopters. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an overall schematic diagram of the rapid apron splicing structure according to the utility model;

[0019] Figure 2 It is a schematic diagram of a splicing plate of a fast apron splicing structure according to the utility model;

[0020] Figure 3 It is a front perspective view of a splicing plate according to a first embodiment of the utility model;

[0021] Figure 4 is a rear perspective view of a splicing plate according to a first embodiment of the utility model;

[0022] Figure 5 is a front view of a splicing plate according to a second embodiment of the utility model;

[0023] Figure 6 is a schematic diagram of the back side of a splicing plate according to a second embodiment of the utility model;

[0024] Figure 7 It is a schematic diagram of a fast apron splicing structure of splicing panels according to the second embodiment of the utility model;

[0025] Figure 8 is a schematic diagram of a splicing plate according to a third embodiment of the utility model;

[0026] Fig. 9 It is a side view of a splicing plate according to a third embodiment of the utility model.

[0027] Figure numbers: 100-apron splicing structure, 1-splicing plate, 101-first side of the splicing plate, 102-second side of the splicing plate, 103-third side of the splicing plate, 104-fourth side of the splicing plate, 2-upper plate body, 3-lower plate body, 4-grid, 111-transverse convex rib, 112-longitudinal convex rib, 12-connecting part, 13-splicing part, 131-forward splicing part, 132-reverse splicing part, 1311&1311'-first transverse splicing part, 1312&1312'-first longitudinal splicing part, 1313&1313'-second transverse splicing part, 1314&1314'-second longitudinal splicing part, 1315-trapezoidal protrusion. DETAILED DESCRIPTION

[0028] The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. The principles and features of the present invention are described below in combination with the accompanying drawings. It should be noted that the embodiments and features in the embodiments in this application can be combined with each other without conflict. The embodiments cited are only used to explain the present invention and are not used to limit the scope of the present invention.

[0029] It should be noted that, in the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and with special instructions, the front and back can also be interchanged; this is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0032] It should be understood that although the terms "first", "second", etc. can be used to describe various elements in this article, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, the first element discussed below can be referred to as the second element without departing from the teachings of the utility model. Similarly, the second element can also be referred to as the first element.

[0033] The utility model provides a fast apron splicing structure 100, such as Figure 1 and Figure 2 As shown, the rapid apron splicing structure includes a plurality of splicing plates 1 with the same structure, and the splicing plates are composed of an upper plate body 2 and a lower plate body 3 which are arranged relatively to each other. The upper plate body 2 and the lower plate body 3 have the same structure, and the upper and lower plates with the same structure are arranged relatively to each other to form a splicing plate 1 with completely the same structure on the front and back sides. There is no need to distinguish the front and back sides during use, and the installation is quick and convenient.

[0034] Specifically, the upper plate body 2 and / or the lower plate body 3 includes: a plate body and a connecting portion 12 and a splicing portion 13 arranged on the plate body, wherein the connecting portion 12 is used to connect the upper and lower plate bodies, and the splicing portion 13 is used to splice two adjacent splicing plates 1. The connecting portion 12 is composed of a grid 4 formed by a transverse convex rib 111 and a longitudinal convex rib 112 arranged on the plate body, and the splicing portion 13 is arranged around the connecting portion 12, and the splicing portion 13 includes a forward splicing portion 131 and a reverse splicing portion 132, and a plurality of splicing plates 1 are spliced ​​together by the forward splicing portion 131 and the reverse splicing plate 132.

[0035] Furthermore, in some embodiments, the transverse ribs 111 and the longitudinal ribs 112 forming the grille 4 on the upper plate 2 and the lower plate 3 are arranged correspondingly and connected into one body by welding. Thus, a hollow grille structure is formed at the position of the connecting portion 12, so that the weight can be reduced and the thickness can be increased to the greatest extent without affecting the strength, thereby enabling the apron splicing structure of the present application to bear a greater weight and reduce deformation, and can cope with more uneven ground and soft geological conditions.

[0036] Furthermore, in some embodiments, in order to improve the stability of the splicing plate 1 and further prevent the splicing plate 1 from deformation, oblique ribs can be set between the grids to divide each rectangular grid into triangular grids. Since the triangle has better stability, this can further improve the stability of the splicing plate 1 during use and avoid the collapse of the apron splicing structure.

[0037] Therefore, the rapid apron splicing structure provided by the present application can fix the two adjacent splicing plates 1 by splicing them with each other through the forward splicing part 131 and the reverse splicing part 132. During installation, they can be aligned with the adjacent splicing plates 1 in the up, down, left and right directions, and then moved in the front, back, left and right directions to insert the splicing parts 132 of the adjacent splicing plates 1, thereby completing the fixation and splicing. After the splicing is completed, the splicing parts 132 of the adjacent connecting plates 1 are locked with each other. Finally, it is only necessary to fix the positions at both ends of the whole to lock them all. Adjusting the number of splicing plates can form rapid aprons of different sizes. After use, since no bolts, adhesives, welding or other connection methods are used during the installation process, but only plug-in fixation, it can be disassembled at any time as needed, which is simple and convenient.

[0038] It should be noted that the forward and reverse directions mentioned in this application are only used to emphasize two different directions, but not to limit them. Under special instructions, the forward and reverse directions can be interchanged. In addition, the front-to-back direction mentioned in this application corresponds to the up-down direction of the drawings in the figures, and the up-down in the upper plate and the lower plate mentioned in this application corresponds to the outside-inside direction of the drawings in the drawings.

[0039] Based on the above content, the present application provides several different implementations of the splicing portion 132 to accommodate different sizes of splicing plates.

[0040] In the first embodiment of the present application, Figure 3 and Figure 4 As shown, arrows and numbers in the figure indicate the first side, the second side, the third side and the fourth side of the splicing plate. In this embodiment, the forward splicing portion 131 includes a first transverse splicing portion 1311 and a first longitudinal splicing portion 1312, wherein the first transverse splicing portion 1311 is formed by the transverse convex rib 111 on the lower plate body 3 extending toward the first side 101 of the splicing plate 1, and the first longitudinal splicing portion 1312 is formed by the longitudinal convex rib 112 on the lower plate body 3 extending toward the second side 102 of the splicing plate 1; the reverse splicing portion 132 includes a second transverse splicing portion 1313 and a second longitudinal splicing portion 1314, wherein the second transverse splicing portion 1312 is formed by the transverse convex rib 111 on the upper plate body 2 extending toward the third side 103 of the splicing plate 1, and the second longitudinal splicing portion 1314 is formed by the longitudinal convex rib 112 on the upper plate body 2 extending toward the fourth side 104 of the splicing plate 1.

[0041] See again Figure 1 , the formed splicing part 13 is formed outside the connecting part 12 in the figure, and the splicing part 13 formed thereby makes the front and back structures of the entire splicing plate 1 the same as a whole, and at this time, the first transverse splicing part is formed over the length of the entire first side 101. This embodiment is suitable for a splicing plate 1 structure with a relatively small size, and stress deformation will not occur due to the excessive length of the transverse splicing part.

[0042] The fast apron splicing structure formed by the splicing plate 1 of this embodiment is as follows: Figure 1 As shown, during splicing, the first transverse splicing portion 1311 in the forward splicing portion 131 of the adjacent panels is plugged into the second transverse splicing portion 1313 in the reverse splicing portion 132, and the first longitudinal splicing portion 1313 in the forward splicing portion of the adjacent panels is plugged into the second longitudinal splicing portion 1314 in the reverse splicing portion 132, thereby connecting the adjacent panels, and then connecting different splicing panels 1 in sequence, thereby forming a fast apron splicing structure of the required size.

[0043] In the second embodiment of the present application, Figure 5 and Figure 6 As shown, arrows and numbers in the figure indicate the first side, the second side, the third side and the fourth side of the splicing plate. In this embodiment, the forward splicing portion 131 may also include a first transverse splicing portion 1311' and a first longitudinal splicing portion 1312', the first transverse splicing portion 1311' is formed by the transverse convex rib 111 on the lower plate body 3 extending to the front half of the first side 101 and the rear half of the third side 103 of the splicing plate 1, respectively, and the first longitudinal splicing portion 1312' is formed by the longitudinal convex rib 112 on the lower plate body 3 extending to the second side 102 of the splicing plate 1. The reverse splicing portion 132 may also include a second transverse splicing portion 1313' and a second longitudinal splicing portion 1314', wherein the second transverse splicing portion is formed by extending the transverse convex rib 111 on the upper plate body 2 toward the rear half of the first side 101 and the front half of the third side 103 of the splicing plate 1, and the second longitudinal splicing portion 1314' is formed by extending the longitudinal convex rib 112 on the upper plate body 2 toward the fourth side 104 of the splicing plate 1.

[0044] Figure 7The fast apron splicing structure 100' after the splicing panels of this embodiment are spliced ​​is shown. In this embodiment, the first side 101 and the third side 103 of the splicing panel 1 have both a forward splicing part and a reverse splicing part. Such a structure can still ensure that the front and back structures of the splicing panel are exactly the same. At this time, when two adjacent splicing panels need to be spliced, the forward and reverse splicing parts of the two adjacent splicing panels on the first side 101 and the third side 103 can be made to correspond to each other for plugging, and the splicing panels in the front and rear can be spliced ​​according to the corresponding forward and reverse splicing parts. This structure is suitable for splicing panels with larger sizes, and can avoid stress deformation caused by excessive length on one side of the splicing panel, thereby making the splicing of larger-sized splicing panels more stable.

[0045] In the third embodiment of the present application, Figure 8 As shown, the forward joint portion 131 of the present application includes a plurality of trapezoidal protrusions 1315 arranged on the second side and the third side direction of the connecting portion 12 of the lower plate body 3, that is, a plurality of trapezoidal protrusions 1315 are arranged between the grille and the lower plate body 3, and the trapezoidal protrusions 1315 are arranged at intervals, and the distance between each trapezoidal protrusion 1315 is equal to the width of the top surface of the trapezoidal protrusion 1315, as shown in FIG. Fig. 9 As shown, Fig. 9 The side view of the splicing plate of this embodiment is shown, in which a represents the distance between the trapezoidal protrusions 1315, and its length is equal to the length of b in the figure, and b represents the width of the top surface of the trapezoidal protrusion 1315. Correspondingly, the reverse splicing portion 132 includes a plurality of trapezoidal protrusions 1315 arranged in the first side 101 and the fourth side 104 of the connecting portion 12 of the upper plate body 2. Similar to the forward splicing portion 131, the trapezoidal protrusions 1315 are arranged at intervals, and the distance between each trapezoidal protrusion 1315 is equal to the width of the top surface of the trapezoidal protrusion 1315.

[0046] Further, in this embodiment, the trapezoidal protrusion 1315 of the forward splicing portion 131 of the first quick splicing plate in the two adjacent splicing plates 1 is inserted into the interval of the trapezoidal protrusion 1315 of the reverse splicing portion of the second splicing plate 1, thereby splicing the two adjacent splicing plates 1. In other words, the two adjacent splicing plates are spliced ​​in a staggered manner, so that the trapezoidal protrusions are inserted into their respective intervals. Since the distance between each trapezoidal protrusion 1315 is equal to the width of the top surface of the protrusion of the trapezoidal protrusion 1315, the interval between each trapezoidal protrusion of one splicing plate can just accommodate the trapezoidal protrusion on the other splicing plate, thereby realizing the connection between the splicing plates.

[0047] When the splicing plates of the embodiment of the present application are used, two adjacent splicing plates are plugged in through the trapezoidal protrusions on the splicing parts in the positive and negative directions, so that the adjacent splicing plates can be relatively fixed. The structure of this embodiment is suitable for use under relatively harsh ground environment conditions. Based on the relative connection between the trapezoidal protrusions, the stability between the splicing plates can be improved, the stress on the surface of the splicing plates can be further reduced, and deformation of the splicing parts when subjected to force can be prevented.

[0048] The structures of different splicing parts in the various embodiments of the present application are introduced above. Compared with the splicing structure in the prior art, the rapid apron splicing structure of the present application is small in size, convenient in transportation, easy to splice, and does not require external connectors such as bolts or external means such as welding for installation. It can be installed immediately after use and disassembled as needed. It has a simple structure and strong stability.

[0049] Furthermore, the splicing structure of the present application may also include a locking device, which is used to lock the supporting structure at both ends of the overall splicing structure after the multiple splicing panels are spliced. The locking device of the present application can be, for example, a plug-in component such as a latch, a rod, a ground nail, or a blocking component such as a baffle or a block, which can fix the two outermost splicing panels. Therefore, it is only necessary to install the locking device on both sides of the outermost splicing panel to lock the entire structure, and prevent relative displacement between the splicing panels during use.

[0050] Therefore, the rapid helipad splicing structure of the present application is simple and universal, very conducive to transportation, handling, and installation, has wide applicability, large optimization space, reduces costs, improves efficiency, and increases the scope of use, and can be applied to various geological conditions.

[0051] The foregoing description of specific exemplary embodiments of the utility model has been presented for the purpose of illustration and description. It is not intended to exclude or limit the utility model to the precise form disclosed, and it is obvious that many modifications and changes are feasible in view of the above teachings. Exemplary embodiments are selected and described to explain certain principles of the utility model and their practical applications, so as to enable other technicians in the field to make or use various exemplary embodiments of the utility model, and various alternatives and modifications thereof. It is intended that the scope of the utility model will be defined by the claims attached to the utility model and their equivalents.

[0052] It is understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, but the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A fast apron splicing structure, characterized in that: The splicing structure includes a plurality of splicing plates with the same structure, and the splicing plates are composed of an upper plate body and a lower plate body which are arranged opposite to each other in the upper and lower directions. The structures of the upper plate body and the lower plate body are consistent. The upper plate body and / or the lower plate body include: a plate body and a connecting part and a splicing part arranged on the plate body; the connecting part is composed of a grid formed by transverse convex ribs and longitudinal convex ribs arranged on the plate body; the splicing part is arranged around the connecting part, and the splicing part includes a forward splicing part and a reverse splicing part. The plurality of splicing plates are spliced ​​together by the forward splicing part and the reverse splicing part to form a whole.

2. The rapid apron splicing structure according to claim 1 is characterized in that: The forward splicing portion includes a first transverse splicing portion and a first longitudinal splicing portion, wherein the first transverse splicing portion is formed by the transverse convex rib on the lower plate body extending toward the first side of the splicing plate, and the first longitudinal splicing portion is formed by the longitudinal convex rib on the lower plate body extending toward the second side of the splicing plate; The reverse splicing portion includes a second transverse splicing portion and a second longitudinal splicing portion, wherein the second transverse splicing portion is formed by the transverse convex rib on the upper plate body extending toward the third side of the splicing plate, and the second longitudinal splicing portion is formed by the longitudinal convex rib on the upper plate body extending toward the fourth side of the splicing plate.

3. The rapid apron splicing structure according to claim 1 is characterized in that: The forward splicing portion includes a first transverse splicing portion and a first longitudinal splicing portion, wherein the first transverse splicing portion is formed by the transverse convex ribs on the lower plate body extending to the front half of the first side and the rear half of the third side of the splicing plate respectively, and the first longitudinal splicing portion is formed by the longitudinal convex ribs on the lower plate body extending to the second side of the splicing plate; The reverse splicing portion includes a second transverse splicing portion and a second longitudinal splicing portion, the second transverse splicing portion is formed by the transverse convex rib on the upper plate body extending to the rear half of the first side and the front half of the third side of the splicing plate, and the second longitudinal splicing portion is formed by the longitudinal convex rib on the upper plate body extending to the fourth side of the splicing plate.

4. The rapid apron splicing structure according to claim 1, characterized in that: The forward joint portion includes a plurality of trapezoidal protrusions arranged on the second side and the third side of the connecting portion of the lower plate body, the trapezoidal protrusions are arranged at intervals, and the distance between each of the trapezoidal protrusions is equal to the width of the top surface of the trapezoidal protrusion; The reverse splicing portion includes a plurality of trapezoidal protrusions arranged on the first side and the fourth side of the connecting portion of the upper plate body, the trapezoidal protrusions are arranged at intervals, and the distance between each of the trapezoidal protrusions is equal to the width of the top surface of the trapezoidal protrusion.

5. The rapid apron splicing structure according to claim 4 is characterized in that: The trapezoidal protrusion of the forward splicing portion of the first splicing plate of two adjacent splicing plates is inserted into the interval of the trapezoidal protrusion of the reverse splicing portion of the second splicing plate, thereby splicing the two adjacent splicing plates.

6. The rapid apron splicing structure according to claim 1 is characterized in that: The transverse convex ribs and the longitudinal convex ribs forming the grid on the upper plate body and the lower plate body are arranged correspondingly and connected into one body by welding.

7. The rapid apron splicing structure according to claim 1 is characterized in that: Oblique convex ribs are also arranged between the grilles.

8. The rapid apron splicing structure according to any one of claims 1 to 7, characterized in that: The splicing structure further comprises a locking device, and the locking device is used to lock the splicing structure at two ends of the overall splicing structure after the plurality of splicing plates are spliced ​​together.

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