Modular aluminum extrusion assembly structure

Abstract

To provide a modular aluminum extrusion assembly structure.SOLUTION: The modular aluminum extrusion assembly structure comprises at least one structural body 10 extending along an X direction and having a width, a length in a Y direction and a height in a Z direction. The transverse connection module 1 includes a transverse connection member, two end face protection members 12, and a positioning member, and the two end face protection members 12 are respectively arranged at two opposite ends of the transverse connection member. The end face protection member 12 has a positioning hole which is selectively inserted into the positioning hole of one end face protection member 12 and is projected, and the lateral connection member extends along the X direction and has the same structural cross section of the lateral connection member in the X direction. The transverse connecting member includes an inclined portion extending along the Z direction and the Y direction, and opposite ends of the inclined portion have a transverse pole connecting recess and a vertical pole connecting recess.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an aluminum extrusion assembly, and more particularly to a modular aluminum extrusion assembly. [Background technology]

[0002] When using a tent or camper as a rest area during outdoor camping, the tent is convenient to carry, but it takes time and effort to set up and take down the tent. Also, when using a tent, all the items, decorations, and equipment used inside must be set up by oneself, and they must be put away after use, so both the preparation beforehand and the cleanup afterwards take time.

[0003] The advantage of using a camper van is that it doesn't take much time to set up and organize. You can complete the preparations by simply driving the camper van to the campsite, and there is no need to pack up when you leave the campsite; just move the camper van and pack up is complete, making it very convenient to use.

[0004] Among conventional patent documents, for example, Patent Document 1 discloses a motorhome structure for a camper. The structure is removably installed on a vehicle body and has an interior space equipped with a plurality of straight frames, a plurality of cross frames, a plurality of fixed assembly members, and a plurality of shell plates. The straight frames and cross frames are made of a first aluminum extrusion or a second aluminum extrusion. The first aluminum extrusion has a square cross section, and first positioning slots are symmetrically formed on each side of the cross section. The second aluminum extrusion has a long rectangular cross section, and its area is twice the cross section of the first aluminum extrusion. Two second positioning slots are formed equidistantly on each long side of the cross section of the second aluminum extrusion, and two second positioning slots are formed on each short side of the cross section, providing the advantages of aluminum, such as light weight, high strength, and corrosion resistance. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Taiwan Registered Utility Model No. 549716 Summary of the Invention [Problem to be solved by the invention]

[0006] However, the interior space of the above-mentioned previous motorhomes could not be adjusted to suit the number of users. For example, the space suitable for individual use was insufficient for two people. The space suitable for two people was too wasted for one person.

[0007] Therefore, the present inventors believed that the above drawbacks could be improved, and as a result of extensive research, they came up with the proposal of the present invention, which effectively improves the above problems through rational design.

[0008] The present invention was made in consideration of the above problems through extensive research by the inventors, and its object is to provide a modular aluminum extrusion assembly structure. [Means for solving the problem]

[0009] In order to solve the above problems, one embodiment of the present invention provides a modular aluminum extrusion assembly structure, which includes at least one structural body (10) that is elongated along an X direction and has a width and a length in a Y direction, the X direction and the Y direction being perpendicular to each other and constituting an XY plane, a Z direction that is perpendicular to the XY plane, and constituting an XZ plane and a YZ plane. The structural body has four lateral connection modules (1) installed at four corner positions, respectively. The lateral connection modules each have a lateral connection member (11), two edge protection members (12), and a positioning member (13). The two edge protection members are installed at both ends of the lateral connection member, and the edge protection members have positioning holes (121), and the positioning member is selectively inserted into the positioning hole of one of the edge protection members and is protruded. The lateral connection members extend along the X direction and have a structural cross section in the X direction. The lateral connection members include inclined portions (111) extending along the Z direction and the Y direction, and both ends of the inclined portions have lateral pole connection recesses (112) and vertical pole connection recesses (113). The structural body has four lateral poles (2) and four vertical poles (3), the lateral poles extending along the Y direction and connected between the lateral pole connection recesses of two of the lateral connection members, and the vertical poles extending along the Z direction and connected between the vertical pole connection recesses of two of the lateral connection members. A first side surface is formed by two of the four lateral poles and two of the four vertical poles being connected to each other via one of the end surface protection members on the same side of the four lateral connection modules in the X direction, and a second side surface is formed by two of the lateral poles other than the two lateral poles and two of the vertical poles other than the two vertical poles being connected to each other so as to be surrounded by the other of the end surface protection members on the same side of the four lateral connection modules in the X direction, and the first side surface and the second side surface are parallel to the YZ plane.

[0010] In a preferred embodiment of the present invention, the horizontal pole connecting recess and the vertical pole connecting recess have an elevation surface (114) and a horizontal surface (115) respectively, which are perpendicularly connected to each other. The vertical plane is parallel to the XZ plane, and the horizontal plane is parallel to the XY plane. In the first aspect, When two of the four lateral poles are connected to the end face protection member of each of the four lateral connection modules, the two end faces of the lateral poles are respectively abutted against the vertical faces of the lateral pole connection recesses, and one side face of the lateral poles is abutted against the horizontal face of the lateral pole connection recesses. When two of the four vertical poles are connected to the end face protection member of each of the four lateral connection modules, the two end faces of the vertical poles are respectively abutted against the horizontal surfaces of the vertical pole connection recesses, and one side surface of the vertical poles is abutted against the vertical surface of the vertical pole connection recesses.

[0011] In a preferred embodiment of the present invention, the two structural bodies are installed so as to be aligned and joined to each other, the first side surface of one of the structural bodies is attached to the second side surface of the other of the structural bodies, and the positioning member installed on the structural body of each of the end face protection members is fitted into the positioning hole of the other of the structural bodies so as to correspond to the positioning hole.

[0012] In a preferred embodiment of the present invention, the structural body has one ring groove (5) located on each of the first side surface and the second side surface. The ring grooves located on the first side surface are recessed in two of the four lateral poles, two of the four vertical poles, and each of the end surface protection members on the same side of the four lateral connection modules in the X direction. The ring grooves located on the second side surface are recessed in two of the lateral poles that are not the two lateral poles, two of the vertical poles that are not the two vertical poles, and each of the other end surface protection members that are on the same side in the X direction of the four lateral connection modules. The valve has a leak prevention member (4) disposed between the two structural bodies and fitted into each of the adjacent and opposing ring grooves.

[0013] In a preferred embodiment of the present invention, the edge protection members have a plurality of through holes 122. The two structural bodies are installed to be coupled to each other, and the through holes of the adjacent edge protection members that are installed in contact with each other are installed to be aligned with each other in the X direction. The end surface protection member has a plurality of fixing bolts that pass through the through holes of two adjacent and abutting end surface protection members and lock the two end surface protection members together to connect the two structural bodies.

[0014] In a preferred embodiment of the present invention, the edge protection member has elongated holes (123) on both sides of the abutting portion with the inclined portion, the elongated holes penetrating the edge protection member in the X direction. The two structural bodies are installed to be coupled to each other, and the two elongated holes of the two edge protection members that are installed adjacent to each other and abutting each other are aligned with each other in the X direction. A ratchet strap is provided which wraps around the two lateral connection modules at the same corner position, passes through each of the long holes of the four end face protection members of the two lateral connection modules, and connects the two structural bodies to fix them together.

[0015] In a preferred embodiment of the present invention, the lateral connecting member, the lateral pole, and the vertical pole each have a plurality of slots, the lateral connecting member has one slot on each of the horizontal and vertical surfaces, two slots are provided on one surface of the inclined portion, and the lateral pole and the vertical pole each have four side surfaces, each of which has at least one slot.

[0016] In a preferred embodiment of the present invention, the lateral connection module has a long pole (14), both ends of which are connected to the two end surface protection members and fitted into the positioning holes of the two end surface protection members, respectively. [Effects of the Invention]

[0017] As described above, the present invention has the following advantages. 1. The system can be used individually or with different numbers of main structures, and each main structure can be pre-designed to have independent functions. For example, the first main structure can be designed as a module with a table and chairs, and the second main structure can be designed as a module with a large platform, allowing for individual use. When providing space for multiple people, such as two people, the space available can be adjusted. For example, by installing two first main structures and two second main structures, the available space can be expanded and the functions of the different modules can be increased, providing greater flexibility in space planning. 2. When assembling multiple structural bodies, adjacent structural bodies can be secured by combining the positioning members with the positioning holes and inserting fixing bolts through the aligned through-holes. Alternatively, ratchet straps can be wound around two lateral connection modules at the same corner and passed through the through-holes of the four end protection members to secure adjacent structural bodies, providing a variety of securing methods. 3. When the horizontal pole and the vertical pole are connected to the horizontal connecting member, the side and end faces of the horizontal pole simultaneously abut against the horizontal pole connecting recess, and the side and end faces of the vertical pole simultaneously abut against the vertical pole connecting recess, ensuring the perpendicularity of the connection between the horizontal pole and the vertical pole between the horizontal connecting member. When further assembling different structural bodies, there is no need to repeatedly adjust the connection relationship between the horizontal pole, the vertical pole, and the horizontal connecting member, and the connection relationship between the different structural bodies is consistent after being combined.

[0018] Other objects, configurations and effects of the present invention will become apparent from the following detailed description of the preferred embodiments of the present invention. [Brief explanation of the drawings]

[0019] [Figure 1] 1 is an external perspective view showing a modular aluminum extrusion assembly structure according to an embodiment of the present invention; [Figure 2] 1 is a partial exploded view of a modular aluminum extrusion assembly according to one embodiment of the present invention; [Figure 3] 1 is a partial cross-sectional view showing a modular aluminum extrusion assembly according to one embodiment of the present invention. [Figure 4] 1 is an external perspective view of a combination of a plurality of structural bodies according to an embodiment of the present invention; [Figure 5] 5 is a partial exploded view of the positioning member shown in FIG. 4 of the present invention being fitted into the positioning hole. [Figure 6] FIG. 1 is a partial exploded view of an assembly of multiple structural bodies according to one embodiment of the present invention. [Figure 6A] 10 is a partial exploded view of the leak prevention member of the present invention fitted into the ring groove. FIG. [Figure 7] FIG. 10 is a schematic diagram illustrating the use of bolts to connect adjacent structural bodies. [Figure 8] 10 is a schematic diagram of the use of ratchet straps to join adjacent structural bodies together in a surrounding manner. FIG. [Figure 9] 10 shows a schematic diagram of an example of an application in which the multi-group structural body is assembled and installed on the chassis at the front rear of a truck. [Figure 10] 10 shows a schematic diagram of an example use where a multi-group structural body is assembled and placed on a wooden pallet. [Figure 11] 10A and 10B show schematic diagrams of an example use case where a multi-group structural body is assembled and placed on a floating platform. [Figure 12] 1 shows a schematic example of an application where the platform, workbench and cabinet are mounted on a single structural body. [Figure 13] 10 shows a schematic example of a use in which the folding platform, workbench and cabinet are mounted on a single structural body. [Figure 14] 1 is a schematic diagram showing the use of two structural bodies as a support structure; [Figure 15] FIG. 10 is a schematic diagram of the use of multiple platforms mounted on four structural bodies. [Figure 16]FIG. 10 is a schematic diagram of the use of multiple platforms mounted on four structural bodies. DETAILED DESCRIPTION OF THE INVENTION

[0020] The present invention will be described below through embodiments of the invention, but the following embodiments do not limit the scope of the invention according to the claims. Furthermore, not all of the combinations of features described in the embodiments are necessarily essential to the solution of the invention.

[0021] A modular aluminum extrusion assembly structure according to one embodiment of the present invention includes a structural body 10 extending in an X direction and having a width and a length in a Y direction. The X and Y directions are mutually perpendicular and form an XY plane, and the XY plane is perpendicular to the Z direction, and also forms an XZ and YZ planes. Specifically, the structural body 10 is formed into a rectangular body (see FIGS. 1, 2, 3, and 5).

[0022] The structural body 10 has four lateral connection modules 1, four lateral poles 2, and four vertical poles 3, with a plurality of slots provided in the lateral connection modules 1, lateral poles 2, and vertical poles 3. The four lateral connection modules 1 are installed at four corner positions, respectively, and each lateral connection module 1 has a lateral connection member 11, two edge protection members 12, and a positioning member 13. The two edge protection members 12 are installed at opposite ends of the lateral connection member 11, respectively, and the edge protection members 12 have positioning holes 121, and the positioning member 13 is selectively inserted into the positioning hole 121 of one of the edge protection members 12 and protrudes therefrom. The lateral connection members 11 extend along the X direction and have the same structural cross section as the lateral connection members in the X direction. The lateral connecting member 11 includes an inclined portion 111 extending along the Z direction and the Y direction, and has a lateral pole connecting recess 112 and a vertical pole connecting recess 113 at opposite ends of the inclined portion 111. The lateral pole connecting recess 112 and the vertical pole connecting recess 113 have an elevation surface 114 and a horizontal surface 115, respectively, which are perpendicularly connected to each other, with the elevation surface 114 parallel to the XZ plane and the horizontal surface 115 parallel to the XY plane. The lateral pole 2 extends along the Y direction and is connected between the lateral pole connecting recesses 112 of the two lateral connecting members 11. The vertical pole 3 extends along the Z direction and is connected between the vertical pole connecting recesses 113 of the two lateral connecting members 11.

[0023] The inclined portion 111 has opposite surfaces, one of which has two slots, and the horizontal surface 115 and the vertical surface 114 each have one slot. The lateral connection module 1 has a long pole 14, the opposing ends of which are connected to two edge protection members 12 and fitted into positioning holes 121. The edge protection member 12 has a plurality of through holes 122, two elongated holes 123, and one slot, with the two elongated holes 123 located on opposite sides of the slot, and the slots of the edge protection member 12 positioned to correspond to the positions of the inclined portion 111.

[0024] Specifically, when two of the horizontal poles 2 are connected to four horizontal connection modules 1, the two opposing end faces of the two horizontal poles 2 are respectively abutted against the vertical faces 114 of the horizontal pole connection recesses 112, and one side face of the horizontal pole 2 is abutted against the horizontal face 115 of the horizontal pole connection recesses 112. At the same time, a screw is passed through the vertical face 114 and screwed directly into the end face, and the screw is passed through the horizontal face 115 and directly locked into a snap-in nut in a slot provided in the horizontal pole 2, thereby connecting the horizontal pole 2 and the horizontal connection module 1. When two of the vertical poles 3 are connected to four horizontal connection modules 1, the two opposite end faces of the two vertical poles 3 are respectively abutted against the horizontal surfaces 115 of the vertical pole connection recesses 113, and one side of the vertical pole 3 is abutted against the vertical surface 114 of the vertical pole connection recesses 113. At the same time, a screw is passed through the horizontal surface 115 and screwed directly into the end face, and the screw is passed through the vertical surface 114 and directly locked into the snap-in nut in the slot provided on the vertical pole 3, thereby connecting the vertical pole 3 and the horizontal connection module 1.

[0025] Two of the lateral poles 2, two of the vertical poles 3, and one of the end face protection members 12 of the four lateral connection modules 1 are connected to each other in a surrounding manner to form a first side surface, and the other two of the lateral poles 2, two of the vertical poles 3, and the other end face protection member 12 of the four lateral connection modules 1 are connected to each other in a surrounding manner to form a second side surface, the first and second side surfaces being parallel to the YZ plane. On the first side surface, slots located on two of the lateral poles 2, two of the vertical poles 3, and one of the end face protection members 12 of the four lateral connection modules 1 are connected to each other to form a ring groove 5. On the second side surface, slots located on the other two of the lateral poles 2, two of the vertical poles 3, and the other end face protection member 12 of the four lateral connection modules 1 are connected to each other to form another ring groove 5.

[0026] In one embodiment of the present invention, the modular aluminum extrusion assembly structure can increase or decrease the internal usable space by adjusting the number of structural bodies 10 as needed (see FIGS. 4, 5, 6, 6A, 7, and 8). In this embodiment, an example is described in which four structural bodies 10 are joined together. During joining, the first side of one structural body 10 is attached to the second side of the other structural body 10, and the positioning member 13 on one structural body 10 is inserted into the corresponding positioning hole 121 on the other structural body 10, so that adjacent structural bodies 10 are aligned and joined together. A leak-proof member 4 is disposed between the two adjacent structural bodies 10 and inserted into the two ring grooves 5. This configuration provides a better seal between the structural bodies 10 after joining, preventing the intrusion of dust and moisture.

[0027] After positioning, the two structural bodies 10 can be fastened together using a fastening bolt alone to lock and fasten, a ratchet strap A alone to fasten, or both a fastening bolt and a ratchet strap A at the same time, but the present invention is not limited to these methods. Before fastening using the fastening bolts, it is first confirmed that the through holes 122 of the two adjacent end protection members 12 are aligned with each other in the X direction. After confirming that the positions are aligned, multiple fastening bolts are passed through the through holes 122 of the two end protection members 12 to lock the two end protection members 12 and fasten the two structural bodies 10 together.

[0028] Before using ratchet straps A to secure the modules, first check that the two slots 123 of the two adjacent end protection members 12 are aligned in the X direction. Once this is confirmed, the ratchet straps A are wound around the two lateral connection modules 1 at the same corner and passed through the slots 123 of the four end protection members 12 to connect and secure the two structural bodies 10. The lateral connection modules 1 at the other corners are also fastened and secured with ratchet straps A in the same way.

[0029] As shown in FIG. 9, the modular aluminum extrusion assembly structure of the present invention can be installed on the front rear chassis of a truck. For example, in this embodiment, it has four interconnected structural bodies 10, and the front, side, and top of the structural bodies 10 can be sealed with seal plates 50. The rear has a door plate. The seal plate 50 seals the rear of the structural body 10, forming an interior space, and the door plate makes it easy for users to enter the interior space.

[0030] In addition, referring to Figures 10 and 11, the modular aluminum extrusion assembly structure of the present invention can be installed on wooden pallets B outdoors to be used as a modular house, or installed on a floating platform C on the water surface to be used as a temporary rest space, but the present invention is not limited to these.

[0031] When the modular aluminum extrusion assembly structure of the present invention is used as a camper or general furniture, a work platform can be installed inside and, by utilizing the slot structure unique to the aluminum extrusion, the position of the work platform can be adjusted as needed, and selectively combined to assemble different usage modes.

[0032] 12 and 13, when one structural body 10 is used alone, the cabinet 8, foldable platform 6, and workbench 7 are installed within the structural body 10, and the workbench 7 is foldably attached to the cabinet 8 and integrated with the cabinet 8. When the workbench 7 and the platform 6 are used, they can be unfolded away from the direction fixed to the structural body 10 and used directly. When not in use, they can be folded in the direction fixed to the structural body 10 and attached to the structural body 10, making them easy to use and store.

[0033] Next, as shown in Figure 14, when two structural bodies 10 are used independently as a support structure, a plate 9 can be placed between the two structural bodies 10 to use it as a table, or a plate 9 can be placed on the top surfaces of the two structural bodies 10 to use it as a bed. In this way, by combining the two structural bodies 10 with the plate 9, a simple piece of furniture having both a table and a bed can be constructed.

[0034] 15 and 16, when four structural bodies 10 are combined and used, for example, by installing all the platforms 6 at the same height, the working range of the platforms 6 can be expanded and they can also be used as beds. Alternatively, adjacent platforms 6 can be positioned with a difference in height, so that the lower platform 6 can be used as a chair and the higher platform 6 can be used as a table.

[0035] The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope of the claims. Embodiments obtained by appropriately combining the technical means disclosed in different embodiments are also included in the technical scope of the present invention. [Explanation of symbols]

[0036] 1 Lateral connection module 11 Lateral connecting member 111 Slope 112 Horizontal pole connection recess 113 Vertical pole connection recess 114 Elevation 115 Horizontal plane 12 End protection member 121 Positioning hole 122 Through hole 123 slotted hole 13 Positioning member 14 Long Pole 2 horizontal poles 3 vertical poles 4. Leak prevention material 5 Ring groove 50 Seal Plate 6. Platform 7 Workbench 8 Cabinet 9 Plates 10. Main structure A Ratchet Strap B. Wooden pallet C. Floating Platform

Claims

1. The present invention provides a method for manufacturing a semiconductor device, comprising: providing at least one structural body (10) extending along an X direction and having a width and a length in a Y direction, the X direction and the Y direction being perpendicular to each other and constituting an XY plane; a Z direction being perpendicular to the XY plane and constituting an XZ plane and a YZ plane; The structural body has four lateral connection modules (1) respectively installed at four corner positions, and the lateral connection modules have a lateral connection member (11), two edge protection members (12), and a positioning member (13), the two edge protection members are respectively installed at both ends of the lateral connection member, the edge protection members have positioning holes (121), the positioning member is selectively inserted into the positioning hole of one of the edge protection members and is protruded, the lateral connection members extend along the X direction and have a structural cross section of the lateral connection member in the X direction, the lateral connection member includes an inclined portion (111) extending along the Z direction and the Y direction, and both ends of the inclined portion have a lateral pole connection recess (112) and a vertical pole connection recess (113), respectively; a first side surface formed by connecting two of the four horizontal poles and two of the four vertical poles to each other via the end surface protection member of one of the four horizontal connection modules on the same side in the X direction; a second side surface formed by connecting two of the horizontal poles other than the two horizontal poles and two of the vertical poles other than the two vertical poles to each other so as to be surrounded by the end surface protection member of the other of the four horizontal connection modules on the same side in the X direction; and the first side surface and the second side surface are parallel to the YZ plane.

2. The horizontal pole connection recess and the vertical pole connection recess each have an elevation surface (114) and a horizontal surface (115) that are perpendicularly connected to each other; The vertical plane is parallel to the XZ plane, and the horizontal plane is parallel to the XY plane. In the first aspect, When two of the four lateral poles are connected to the end surface protection member of each of the four lateral connection modules, two end surfaces of the lateral poles are respectively abutted against the vertical surfaces of the lateral pole connection recesses, and one side surface of the lateral pole is abutted against the horizontal surface of the lateral pole connection recesses; 2. The modular aluminum extrusion assembly structure of claim 1, wherein when two of the four vertical poles are connected to the end face protection member of each of the four lateral connection modules, two end faces of the vertical poles abut against the horizontal surfaces of the vertical pole connection recesses, and one side surface of the vertical poles abuts against the vertical surface of the vertical pole connection recesses.

3. 2. The modular aluminum extrusion assembly structure according to claim 1, wherein the two structural bodies are installed so as to be aligned and joined to each other, the first side of one structural body is attached to the second side of the other structural body, and the positioning member installed on one structural body is fitted into the positioning hole of the other structural body so as to correspond to the positioning member.

4. The structural body has one ring groove (5) located on each of the first side surface and the second side surface, The ring grooves located on the first side surface are recessed in two of the four lateral poles, two of the four vertical poles, and one of the end surface protection members on the same side in the X direction of the four lateral connection modules, The ring grooves located on the second side surfaces are recessed in two of the lateral poles other than the two lateral poles, two of the vertical poles other than the two vertical poles, and each of the other end surface protection members on the same side in the X direction of the four lateral connection modules, 4. The modular aluminum extrusion assembly structure according to claim 3, further comprising a leak prevention member (4) installed between the two structural bodies and fitted into each of the adjacent and opposing ring grooves.

5. The edge protection members have a plurality of through holes (122), and are installed so that the two structural bodies are coupled to each other, and the through holes of the edge protection members that are adjacent to each other and installed in contact with each other are installed so as to be aligned with each other in the X direction; 4. The modular aluminum extrusion assembly structure according to claim 3, further comprising a plurality of fixing bolts that pass through the through holes of two adjacent and abutting end protection members and lock the two end protection members together to connect the two structural bodies.

6. The end surface protection member has elongated holes (123) on both sides of the abutting portion with the inclined portion, the elongated holes (123) being respectively installed so as to penetrate the end surface protection member in the X direction, and the two structural bodies are installed so as to be coupled to each other, and the two elongated holes of the two end surface protection members that are installed adjacent to each other and in abutment are arranged so as to be aligned with each other in the X direction, 4. The modular aluminum extrusion assembly structure according to claim 3, further comprising a ratchet strap that wraps around the two lateral connection modules at the same corner position, passes through the slots of the four end face protection members of the two lateral connection modules, and connects the two structural bodies to fix them together.

7. a plurality of slots respectively disposed in the lateral connecting member, the lateral pole, and the vertical pole; The horizontal connecting member has one slot on each of the horizontal surface and the vertical surface, and two slots are provided on one surface of the inclined portion; 3. The modular aluminum extrusion assembly of claim 2, wherein the lateral poles and the vertical poles have four sides, each of the sides having at least one of the slots.

8. The modular aluminum extrusion assembly structure according to claim 1, characterized in that the lateral connection module has a long pole (14), both ends of which are connected to the two end surface protection members and fitted into the positioning holes of the two end surface protection members, respectively.

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