A fast-paved vertical take-off and landing field and module thereof

Abstract

The utility model belongs to vertical take-off and landing field technical field, especially relates to a fast -paved vertical take-off and landing field and module, it has solved the problem of inconvenient dismounting maintenance and unable flexible adjustment field size. The fast -paved vertical take-off and landing field includes a plurality of modules, and the panel side of adjacent module is pasted, and the upper surface of each panel is spliced to form the parking flat, and the both ends of the connecting piece are detachably connected with the framework of adjacent module respectively. The fast -paved vertical take-off and landing field module includes the panel and the framework of board shape, the panel is detachably laid on the framework, and is at least fixed in horizontal direction, and the side portion of the framework is detachably provided with the connecting piece, and can be connected with the framework of adjacent module. Realize the flexible dismounting, and the convenient maintenance, and the effect that the field size can be flexibly adjusted.

Description

Technical Field

[0001] This utility model belongs to the field of vertical take-off and landing field technology, and specifically relates to a quick-layout vertical take-off and landing field and its module. Background Technology

[0002] Vertical takeoff and landing fields provide a parking surface for aircraft such as helicopters to take off, land, and park.

[0003] In the existing technology, some vertical take-off and landing sites consist of support beams and panels laid on the support beams. However, such a structure cannot flexibly adjust the size of the site and is greatly affected by the terrain. At the same time, most take-off and landing sites are inconvenient to disassemble and assemble, which is not conducive to subsequent maintenance. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned problems in the existing technology by proposing a quick-layout vertical take-off and landing field module.

[0005] To achieve the innovative objectives of this utility model, the following technical solutions can be used:

[0006] A quick-layout vertical take-off and landing field module includes a plate-shaped panel and a frame. The panel is detachably laid on the frame and is fixed at least horizontally. The frame is detachably provided with connectors on its sides, which can be connected to the frames of adjacent modules.

[0007] The takeoff and landing module of this utility model mainly consists of two parts: a frame and a panel. The frame provides support, with its bottom surface in contact with the ground and its top surface supporting the panel. The top surface of the panel forms a small parking surface. The panel and frame are limited in position, preventing relative movement between them on the horizontal plane. Connectors are provided on the sides of the frame, allowing connection to the frames of other modules for quick assembly and disassembly. Furthermore, the connections between the frame, panel, and connectors of this module are all flexible and detachable, facilitating easy assembly and disassembly.

[0008] In the aforementioned quick-layout vertical take-off and landing field module, the frame includes a strip-shaped snap-fit ​​section located on the side, and the panel is detachably connected to the snap-fit ​​section via a snap-fit ​​structure.

[0009] The general shape of the frame is similar to that of the panel. A horizontally extending snap-fit ​​section is provided on the side of the frame. This snap-fit ​​section can be matched with the snap-fit ​​structure of the panel and is also used to set the connector.

[0010] In the aforementioned quick-layout vertical take-off and landing field module, the frame includes X segments and Y segments arranged crosswise and integrally connected. Each of the X segments and Y segments has at least one segment, and the two ends of the X segments and Y segments form the snap-fit ​​segments. The angle between the X segments and Y segments is an acute angle or a right angle.

[0011] The frame's shape is equivalent to an intersecting arrangement of X and Y segments. This ensures structural strength while also achieving lightweighting and material cost savings. From another perspective, it's also equivalent to having several cutouts on the frame, forming the intersecting shape of X and Y segments. Preferably, two X segments and two Y segments are each used, forming a grid-like structure that provides sufficient support.

[0012] In the aforementioned quick-layout vertical take-off and landing field module, the bottom surface of the panel is provided with a downwardly extending skirt, and the snap-fit ​​structure includes an opening provided on the skirt, the opening extending vertically and opening downward, and the snap-fit ​​segment snapping into the opening.

[0013] The bottom surface of the panel has a centrally concave structure, forming a skirt along the outer perimeter. The skirt has an opening that extends through the thickness direction and opens downwards. The snap-fit ​​segment can snap upwards into the opening. The width of the opening is adapted to the width of the snap-fit ​​segment to achieve a limiting effect in the width direction of the opening. In addition, at least one set of snap-fit ​​segments and openings are provided on each side of the panel to ensure the limiting effect of the frame and the panel in the horizontal direction.

[0014] In the aforementioned quick-layout vertical take-off and landing field module, the outer side of the skirt is flush with the outer side of the panel, the outer end face of the snap-fit ​​section is flush with the outer side of the skirt, and the height of the skirt is less than or equal to the thickness of the frame.

[0015] The outer side of the skirt, the outer side of the panel, and the outer end face of the snap-fit ​​section are located on the same vertical plane, ensuring that these surfaces can fit together with the corresponding surfaces of adjacent modules when spliced ​​with other modules. The height of the skirt is not greater than the thickness of the frame, ensuring that the frame effectively supports the panel.

[0016] In the aforementioned quick-layout vertical take-off and landing field module, a limiting groove is provided on the top surface of the snap-fit ​​section. The limiting groove is open on one side near the outer end face of the snap-fit ​​section, and the end of the connector is snapped between the limiting groove and the bottom surface of the panel.

[0017] The limiting groove is opened on the top surface of the outer end of the snap-fit ​​section, and the outer end of the limiting groove in the length direction is connected to the outer end face of the snap-fit ​​section, so that the connector can lock one end into the limiting groove and the other end extends horizontally.

[0018] In the aforementioned quick-layout vertical take-off and landing field module, the connecting component includes a strip-shaped main body and large heads located at both ends of the strip-shaped main body. The large heads are spherical, teardrop-shaped, conical, or cylindrical, and their envelope size in the direction perpendicular to the axis of the strip-shaped main body is greater than the envelope size of the strip-shaped main body in the corresponding direction. The limiting groove includes a strip-shaped segment located on the outer side and adapted to the strip-shaped main body, and a large head segment located on the inner side with an inner diameter greater than or equal to the outer diameter of the large head. The strip-shaped main body is embedded in the strip-shaped segment, and the large head is limited to the large head segment. The depth direction of the large head segment extends along the thickness direction of the skeleton and is a through-hole or blind hole type.

[0019] The connector is positioned between the limiting groove and the bottom surface of the panel. The connector is shaped with a larger end and a smaller middle, while the limiting groove is shaped with a corresponding larger inner end and a smaller outer end. The outer diameter of the larger end is larger than the width of the strip segment of the limiting groove, providing a length-direction limiting effect. Furthermore, the inner diameter of the larger end is larger than its outer diameter, allowing for a small range of relative rotation between the connector and the frame, as well as a small range of relative movement along the length direction, giving the connector a certain degree of freedom of movement within the limiting groove. Additionally, a gap is provided between the bottom of the groove segment and the bottom surface of the main body of the strip to allow for a small range of rotation of the connector. While this design reduces the fit of the joint, it allows the connector and frame to appropriately deflect or separate when the supporting ground sinks, reducing the possibility of connector breakage and also lowering the requirements for machining precision.

[0020] In the aforementioned quick-layout vertical take-off and landing field module, the bottom surface of the panel and the top surface of the frame are respectively provided with a number of mutually matching positioning holes and positioning protrusions, and the positioning protrusions are inserted into the positioning holes.

[0021] The panel and the frame are also provided with positioning holes and positioning protrusions for interlocking, which further enhances the limiting effect of the panel and the frame in the horizontal direction. The positioning holes and positioning protrusions are preferably circular in shape, and the inner diameter of the positioning hole is adapted to the outer diameter of the positioning protrusion. The positioning hole can be a through hole or a blind hole opened on the bottom surface of the panel, but the height of the positioning protrusion is not higher than the depth of the blind hole type positioning hole, so as to ensure effective support between the top surface of the frame and the bottom surface of the panel.

[0022] In the aforementioned quick-layout vertical take-off and landing field module, the panel is provided with several drainage holes, and the frame is provided with several clearance areas located below the drainage holes; the top surface of the panel is provided with several anti-slip protrusions; the panel is square, rhomboid, or trapezoidal.

[0023] Drainage holes are used to drain water accumulated on the panel. These holes are located above the clearance area of ​​the frame to ensure that water can drain smoothly to the ground. Furthermore, a tapered drainage surface can be provided at the upper end of the drainage hole. The anti-slip protrusions on the panel can be a series of rectangular arrays of elongated protrusions, or even X-shaped, square, or triangular protrusions, to prevent slippage. These anti-slip protrusions can be integrally fixed to the panel, or they can be detachably fixed using, for example, bolts. The shape of the panel can be square, rhomboid, trapezoidal, or even regular hexagonal, as long as the modules can be spliced ​​together to form a large, seamless flat surface.

[0024] Another objective of this invention is to address the aforementioned problems in the existing technology by proposing a quick-layout vertical take-off and landing field.

[0025] To achieve this innovative objective of this utility model, the following technical solutions can be used:

[0026] A quick-layout vertical take-off and landing field includes several modules as described above. The side panels of adjacent modules are attached to each other, and the top surfaces of each panel are joined together to form a parking plane. The two ends of the connectors are detachably connected to the frame of the adjacent modules.

[0027] This utility model's modular design for takeoff and landing fields consists of several modules spliced ​​together. Adjacent modules are attached side to side and connected by connectors. The connectors create horizontal limits between corresponding modules, ensuring stable splicing of each module. Moreover, the splicing is detachable, improving practicality. For example, if the supporting ground under one or more modules becomes dented, the corresponding module can be removed to repair the supporting ground. Alternatively, if one or more modules are damaged, they can be replaced in a timely manner.

[0028] Compared with the prior art, the present invention has the following main advantages:

[0029] 1. This takeoff and landing module mainly consists of two parts: a frame and a panel. The frame provides support, while the top surface of the panel forms the landing plane. The panel and frame are equipped with limiters, and the connectors allow for quick connection between modules. Furthermore, the connections between the frame, panel, and connectors are all flexible and detachable, making assembly and disassembly convenient.

[0030] 2. The shape of the frame is equivalent to the X and Y segments arranged in an intersecting pattern, which ensures the support strength while also achieving the effects of lightweighting and saving material costs.

[0031] 3. The panel has a skirt on its outer periphery, and the skirt has an opening. The snap-fit ​​segment can snap into the opening. In addition, at least one set of snap-fit ​​segments and openings are provided on each side of the panel to ensure the limiting effect of the frame and the panel in the horizontal direction.

[0032] 4. The outer side of the skirt, the outer side of the panel, and the outer end face of the snap-fit ​​section are located on the same vertical plane to ensure that these surfaces can fit together with the corresponding surfaces of adjacent modules when spliced ​​with other modules.

[0033] 5. The limiting groove is opened on the top surface of the outer end of the snap-fit ​​section, and the outer end of the limiting groove in the length direction is connected to the outer end face of the snap-fit ​​section, so that the connector can have one end snapped into the limiting groove and the other end extended horizontally.

[0034] 6. The connector is shaped with a large end and a small middle. The shape of the limiting groove matches the connector. The outer diameter of the large head is larger than the width of the strip segment of the limiting groove, which has a limiting effect in the length direction.

[0035] 7. Positioning holes and positioning protrusions are provided between the panel and the frame, which further enhances the limiting effect of the panel and the frame in the horizontal direction.

[0036] 8. This take-off and landing field is composed of several modules. Adjacent modules are attached to each other on the sides and connected by connectors. The connectors provide horizontal restraint between the corresponding modules, ensuring the stable splicing of each module. Moreover, this splicing is flexible and detachable. Attached Figure Description

[0037] Figure 1 This is a top-down schematic diagram of a rapid-deployment vertical take-off and landing field;

[0038] Figure 2 This is a top view of the quick-layout vertical take-off and landing field module (Example 1).

[0039] Figure 3 This is a bottom view of the quick-layout vertical take-off and landing field module (Example 1).

[0040] Figure 4 This is a right-side schematic diagram of a quick-layout vertical take-off and landing field module (Example 1).

[0041] Figure 5 This is a bottom view of the panel (Example 1);

[0042] Figure 6 This is a right-side view of the panel (Example 1);

[0043] Figure 7 This is a top view of the skeleton (Example 1);

[0044] Figure 8 This is a left-side view of the skeleton (Example 1);

[0045] Figure 9 This is a front view schematic diagram of the connector;

[0046] Figure 10Yes, a bottom view of the quick-layout vertical take-off and landing field module (Example 2).

[0047] In the diagram, panel 1, frame 2, connector 3, module 4, snap-fit ​​section 5, snap-fit ​​structure 6, X section 7, Y section 8, skirt 9, opening 10, limiting groove 11, strip body 12, large head 13, strip section 14, large head section 15, positioning hole 16, positioning protrusion 17, drainage hole 18, anti-slip protrusion 19, and stopping plane 20. Detailed Implementation

[0048] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0049] Example 1

[0050] Specific implementation examples Figure 1 As shown, this quick-layout vertical take-off and landing field includes several modules 4. The sides of the panels 1 of adjacent modules 4 are attached to each other, and the top surfaces of each panel 1 are spliced ​​together to form a parking plane 20. The two ends of the connector 3 are detachably connected to the frame 2 of the adjacent module 4 respectively.

[0051] Specifically, this take-off and landing field is composed of several modules 4 spliced ​​together. The sides of adjacent modules 4 are attached to each other and connected by connectors 3. The connectors 3 form a horizontal limit between the corresponding modules 4, ensuring the stable splicing of each module 4. Moreover, the splicing is detachable, which improves practicality.

[0052] like Figures 2-9 As shown, the module 4 of the quick-lay-out vertical take-off and landing field includes a square plate-shaped panel 1 and a frame 2. The panel 1 can be detachably laid on the frame 2 and is fixed in the upper limit in the horizontal direction. The side of the frame 2 is detachably provided with a connector 3, which can be connected to the frame 2 of the adjacent module 4.

[0053] Specifically, module 4 of the takeoff and landing field mainly consists of two parts: a frame 2 and a panel 1. The frame 2 provides support, with its bottom surface in contact with the ground and its top surface supporting the panel 1. The top surface of the panel 1 forms a small parking surface. The panel 1 and frame 2 are limited in position, preventing relative movement between them on the horizontal plane. A connector 3 is provided on the side of the frame 2, which can connect to the frames 2 of other modules 4, enabling quick connection between modules 4. Furthermore, the connections between the frame 2, panel 1, and connector 3 of this module 4 are all flexible and detachable, facilitating easy assembly and disassembly.

[0054] like Figure 2 , Figure 3 , Figure 7As shown, the frame 2 includes a strip-shaped snap-fit ​​section 5 located on the side, and the panel 1 is detachably connected to the snap-fit ​​section 5 via a snap-fit ​​structure 6. The frame 2 includes X segments 7 and Y segments 8 arranged vertically and integrally connected, with two X segments 7 and two Y segments 8 respectively, and the two ends of the X segments 7 and Y segments 8 forming the snap-fit ​​section 5.

[0055] Specifically, the frame 2 has a general shape similar to the panel 1. A horizontally extending snap-fit ​​section 5 is provided on the side of the frame 2. This snap-fit ​​section 5 can engage with the snap-fit ​​structure 6 of the panel 1 for positioning. This snap-fit ​​section 5 is also used to install the connector 3. The shape of the frame 2 is equivalent to an alternating arrangement of X-segments 7 and Y-segments 8, which ensures support strength while also achieving lightweighting and saving material costs.

[0056] like Figure 3 , Figure 4 , Figure 5 As shown in the figure, a downwardly extending skirt 9 is provided on the bottom surface of panel 1. The snap-fit ​​structure 6 includes an opening 10 provided on the skirt 9. The opening 10 extends vertically and opens downward. The snap-fit ​​section 5 is snapped into the opening 10. The outer side of the skirt 9 is flush with the outer side of panel 1, and the outer end face of the snap-fit ​​section 5 is flush with the outer side of the skirt 9. The height of the skirt 9 is the same as the thickness of the frame 2.

[0057] Specifically, the bottom surface of panel 1 has a centrally concave structure, forming a skirt 9 on its outer periphery. This skirt 9 has an opening 10 extending through the thickness direction, and this opening 10 opens downwards, allowing the snap-fit ​​segment 5 to snap upwards into the opening 10. The width of the opening 10 is adapted to the width of the snap-fit ​​segment 5, achieving a limiting effect in the width direction of the opening 10. Furthermore, two sets of snap-fit ​​segments 5 and openings 10 are provided on each side of panel 1, ensuring the horizontal limiting effect of the frame 2 and panel 1. The outer surfaces of the skirt 9, panel 1, and snap-fit ​​segments 5 are located on the same vertical plane, ensuring that when spliced ​​with other modules 4, these surfaces can fit against the corresponding surfaces of adjacent modules 4. The height of the skirt 9 does not exceed the thickness of the frame 2, ensuring effective support of the frame 2 for panel 1.

[0058] like Figure 3 , Figure 7 , Figure 8 , Figure 9As shown, a limiting groove 11 is provided on the top surface of the snap-fit ​​section 5. The limiting groove 11 is open on one side near the outer end face of the snap-fit ​​section 5. The end of the connector 3 is snapped between the limiting groove 11 and the bottom surface of the panel 1. The connector 3 includes a strip-shaped body 12 and large heads 13 located at both ends of the strip-shaped body 12. The large heads 13 are spherical and their outer diameter is larger than the width of the strip-shaped body 12. The limiting groove 11 includes a strip-shaped segment 14 located on the outer side and adapted to the strip-shaped body 12, and a large head segment 15 located on the inner side and whose inner diameter is larger than the outer diameter of the large head segment 13. The large head segment 15 is cylindrical and penetrates the skeleton 2 along the thickness direction. The strip-shaped body 12 is embedded in the strip-shaped segment 14, and the large head segment 13 is limited in the large head segment 15.

[0059] Specifically, the limiting groove 11 is formed on the top surface of the outer end of the snap-fit ​​section 5, and the outer end of the limiting groove 11 in the length direction is connected to the outer end face of the snap-fit ​​section 5, so that the connector 3 can be snapped into the limiting groove 11 at one end and extend horizontally at the other end. The connector 3 is set between the limiting groove 11 and the bottom surface of the panel 1. The connector 3 is shaped with a larger end and a smaller middle. The limiting groove 11 is shaped with a larger inner end and a smaller outer end. The outer diameter of the large head 13 is larger than the width of the strip segment 14 of the limiting groove 11, which has a limiting effect in the length direction. Furthermore, the inner diameter of the large head segment 15 is larger than the outer diameter of the large head 13, so that the connector 3 and the frame 2 can deflect or separate within a small range. When the supporting ground sinks and the corresponding module 4 sinks, the connector 3 is not easy to break.

[0060] As an optimization of this embodiment, four cylindrical positioning holes 16 are provided through the bottom surface of the panel 1, and corresponding positioning protrusions 17 are provided on the top surface of the frame 2. The positioning protrusions 17 are located at the intersection of the X segment 7 and the Y segment 8. The positioning protrusions 17 are inserted into the positioning holes 16, which further enhances the limiting effect of the panel 1 and the frame 2 in the horizontal direction.

[0061] In this embodiment, a plurality of drainage holes 18 are provided through the panel 1, and a plurality of clearance areas located below the drainage holes 18 are provided on the frame 2; a plurality of anti-slip protrusions 19 are provided on the top surface of the panel 1.

[0062] Specifically, the drain hole 18 is used to drain water accumulated on the panel 1. The drain hole 18 is also located above the clearance area of ​​the frame 2 to ensure that the water can be smoothly drained to the ground. The anti-slip protrusions 19 on the panel 1 are long strip protrusions arranged in a rectangular array to prevent slipping. The anti-slip protrusions 19 are fixed integrally with the panel 1.

[0063] Specific working principle: During assembly, the frame 2 is placed on the supporting ground, with the sides of adjacent frames 2 touching and the openings of the limiting grooves 11 facing each other. Then, the two ends of the connector 3 are respectively inserted into the limiting grooves 11 of the adjacent frames 2. Finally, the opening 10 of the panel 1 is aligned with the snap-fit ​​section 5 and fastened onto the frame 2. The positioning protrusion 17 is inserted into the positioning hole 16. The other modules 4 are assembled in the same way. After assembly, a flat stopping surface 20 is formed.

[0064] Example 2

[0065] The working principle of this embodiment is basically the same as that of embodiment 1, except that the skeleton 2 is cross-shaped.

[0066] Specific implementation examples Figure 10 As shown, X segment 7 and Y segment 8 each have one (i.e., arranged in a cross shape), and each side of the skirt 9 has an opening 10 corresponding to the snap-fit ​​segment 5, and the snap-fit ​​segment 5 snaps into the opening 10.

[0067] Example 3

[0068] The working principle of this embodiment is basically the same as that of embodiment 1, except that the positioning protrusion and positioning hole are different.

[0069] In this embodiment, the positioning protrusion extends downward and is disposed on the bottom surface of the panel 1, and the positioning hole is disposed on the top surface of the frame 2. In addition, some drainage holes 18 are located above the intersection of X segment 7 and Y segment 8, and a water passage hole corresponding to and communicating with the drainage hole 18 is provided at the intersection.

[0070] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A quick-layout vertical take-off and landing field module, characterized in that, It includes a plate-shaped panel (1) and a frame (2). The panel (1) is detachably laid on the frame (2) and is fixed at least in the horizontal direction. The side of the frame (2) is detachably provided with a connector (3) that can be connected to the frame (2) of the adjacent module (4).

2. The quick-layout vertical take-off and landing field module according to claim 1, characterized in that, The frame (2) includes a strip-shaped snap-fit ​​section (5) located on the side, and the panel (1) is detachably connected to the snap-fit ​​section (5) via a snap-fit ​​structure (6).

3. The quick-layout vertical take-off and landing field module according to claim 2, characterized in that, The skeleton (2) includes X segments (7) and Y segments (8) that are arranged in a cross pattern and connected in one piece. Each of the X segments (7) and Y segments (8) has at least one, and both ends of the X segments (7) and Y segments (8) are formed with the snap-fit ​​segments (5). The angle between the X segments (7) and Y segments (8) is an acute angle or a right angle.

4. The quick-layout vertical take-off and landing field module according to claim 2, characterized in that, The bottom surface of the panel (1) is provided with a downwardly extending skirt (9), and the snap-fit ​​structure (6) includes an opening (10) provided on the skirt (9). The opening (10) extends vertically and opens downward, and the snap-fit ​​section (5) is snapped into the opening (10).

5. The quick-layout vertical take-off and landing field module according to claim 4, characterized in that, The outer side of the skirt (9) is flush with the outer side of the panel (1), the outer end face of the snap-fit ​​section (5) is flush with the outer side of the skirt (9), and the height of the skirt (9) is less than or equal to the thickness of the skeleton (2).

6. The quick-layout vertical take-off and landing field module according to claim 2, characterized in that, The top surface of the snap-fit ​​section (5) is provided with a limiting groove (11). The limiting groove (11) is open on one side near the outer end face of the snap-fit ​​section (5). The end of the connector (3) is snapped between the limiting groove (11) and the bottom surface of the panel (1).

7. The quick-layout vertical take-off and landing field module according to claim 6, characterized in that, The connector (3) includes a strip body (12) and large heads (13) located at both ends of the strip body (12). The large heads (13) are spherical, teardrop-shaped, conical, or cylindrical, and their envelope size in the direction perpendicular to the axis of the strip body (12) is greater than the envelope size of the strip body (12) in the corresponding direction. The limiting groove (11) includes a strip segment (14) located on the outside and adapted to the strip body (12), and a large head segment (15) located on the inside and whose inner diameter is greater than or equal to the outer diameter of the large head (13). The strip-shaped main body (12) is embedded in the strip-shaped segment (14), and the large head (13) is confined in the large head segment (15); The depth direction of the large head section (15) extends along the thickness direction of the skeleton (2) and is either through-hole or blind hole type.

8. The quick-layout vertical take-off and landing field module according to claim 1, characterized in that, The bottom surface of the panel (1) and the top surface of the frame (2) are respectively provided with a number of matching positioning holes (16) and positioning protrusions (17), and the positioning protrusions (17) are inserted into the positioning holes (16).

9. The quick-layout vertical take-off and landing field module according to claim 1, characterized in that, The panel (1) is provided with a plurality of drainage holes (18), and the frame (2) is provided with a plurality of clearance areas located below the drainage holes (18); The top surface of the panel (1) is provided with several anti-slip protrusions (19). The panel (1) is square, rhomboid or trapezoidal.

10. A rapid-layout vertical take-off and landing field, comprising several modules (4) as described in any one of claims 1-9, characterized in that, The sides of the panels (1) of adjacent modules (4) are attached to each other, and the top surfaces of each panel (1) are joined together to form a stop plane (20). The two ends of the connector (3) are detachably connected to the frame (2) of the adjacent module (4).

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