A prefabricated filler grid structure and pavement system

Abstract

The present invention discloses an assembled filler grid structure and a pavement system, which relates to the technical field of road construction. The grid structure includes at least three splicing bodies and a corresponding number of splicing pieces. The splicing body includes a fastener and a plate body with an inner cavity. The left and right sides of the plate body are formed with an embedding groove for accommodating the side wings of the splicing pieces, and the outer side of the plate body is provided with a splicing groove; the fastener includes a rotating column and a buckle body, the outer end of the rotating column can rotatably pass through the inner cavity of the plate body to the splicing groove, the buckle body is fixed to the outer end of the rotating column, and the buckle body can be mutually buckled with another buckle body; triggering pieces are arranged on both sides of the plate body cavity, when the rotating column rotates to a first direction, the rotating column can drive the triggering pieces on both sides to lock the splicing pieces on the corresponding side, and the first direction forms an angle with the vertical direction; the pavement system uses a plurality of the above-mentioned assembled filler grid structures. The grid structure and the pavement system not only have the characteristics of flexible installation, but also have the characteristics of stable connection after rotation locking.

Description

Technical Field

[0001] The present invention relates to the technical field of road construction, and in particular to an assembled filler grid structure and a pavement system. Background Art

[0002] The plateau areas of the Tibet Autonomous Region are at a high altitude, mostly above 3,500 meters. Most of the areas have a large temperature difference between day and night, and the average temperature is below zero degrees Celsius. Conventional concrete pavements are affected by winter freezing and thawing, and are prone to fracture and crushing. They need maintenance all year round, especially above 4,500 meters above sea level, where the temperature difference between day and night is large, and the frost heave is a daily cycle, with an annual cycle of more than 200 times. The conventional highest grade concrete F300 antifreeze grade basically requires maintenance every year, with a short service life, high cost, and a short construction period, making construction difficult. Therefore, for the construction of pavements and fields in high-cold and high-altitude areas, it is necessary to study a new road and field structure system that can be quickly constructed, low in cost, and has significant environmental adaptability, so as to reduce engineering costs, achieve fast and convenient construction, use local materials, and be able to be constructed at any time without being affected by the climate, and have strong environmental adaptability and long service life. For example, the prefabricated pavement system mainly consists of a spliced ​​grid or an integral grid as the intermediate support layer. After forming a stable support on the roadbed, various fillers are filled, and finally the top layer is laid to form a prefabricated pavement.

[0003] Most existing prefabricated pavements adopt an integral grid pattern, which can be easily installed, but there are certain difficulties in transportation conditions in high-altitude and cold areas. In addition, the integral grid pattern mostly adopts standard sites, and there is a problem of low installation flexibility for non-standard sites.

[0004] In view of the above problems, it is more appropriate to adopt a spliced ​​grid mode in high-cold and high-altitude areas. However, the existing spliced ​​grid structure has poor assembly flexibility. Either a fixed sub-fastener form is adopted, sacrificing the flexibility of disassembly to ensure the stability of the buckle, or a movable buckle form is adopted. Although the assembly is more flexible, there is a problem of buckle connection failure due to long-term high pressure on the road surface.

[0005] In view of this, this application is hereby filed. Summary of the invention

[0006] The first object of the present invention is to provide an assembled filler grid structure, which combines flexible snap-in and stable locking or unlocking methods to ensure the stability and flexibility of splicing adjacent grid structures, thereby achieving the purpose of taking both into account.

[0007] The second object of the present invention is to provide a pavement system, which uses multiple of the above-mentioned prefabricated filler grid structures, so that the entire prefabricated pavement formed has flexibility during assembly and stability after assembly, and is more adaptable to pavement support scenarios in high-cold and high-altitude areas.

[0008] The embodiment of the present invention is achieved as follows:

[0009] A prefabricated filler grid structure comprises at least three splicing bodies and a corresponding number of splicing pieces, wherein the at least three splicing bodies form an enclosure structure, and adjacent splicing bodies are connected by splicing pieces; wherein the splicing bodies comprise fasteners and a plate body with an inner cavity, wherein the left and right sides of the plate body are formed with embedding grooves for accommodating the side wings of the splicing pieces, and the outer side of the plate body is provided with a splicing groove, wherein the embedding groove and the splicing groove are in a vertical direction; the fasteners comprise a rotating column and a buckle body, wherein the outer end of the rotating column can rotatably pass through the inner cavity of the plate body to the splicing groove, the buckle body is fixed to the outer end of the rotating column, and the buckle body can be mutually buckled with another buckle body; trigger pieces are arranged on both sides of the inner cavity of the plate body, and the trigger piece on each side forms an active locking connection with the splicing piece on the corresponding side, and when the rotating column rotates to a first direction, the rotating column can drive the trigger pieces on both sides to lock the splicing piece on the corresponding side, and the first direction forms an angle with the vertical direction.

[0010] In an optional embodiment, the trigger member includes a trigger rod and a compression spring. A trigger ring is sleeved on the rotating column located in the inner cavity of the plate body. A guide hole is opened on the inner cavity wall of the plate body. The guide hole connects the embedding groove and the inner cavity of the plate body. The trigger rod is telescopically arranged in the guide hole through the compression spring. One end of the trigger rod forms a cam pair with the trigger ring, and the other end can slide into the lock hole opened in the side wall of the splicing piece.

[0011] In an optional embodiment, the splicing piece includes a first wing plate and a second wing plate connected at an angle, the first wing plate and the second wing plate both form side wings of the splicing piece, and the first wing plate and the second wing plate are respectively used to insert into adjacent engaging grooves of the two plate bodies; positioning columns are provided on the upper and lower sides of the first wing plate and the second wing plate.

[0012] In an optional embodiment, positioning holes are provided on upper and lower sides of the first wing plate and the second wing plate, a positioning member with a reset function is slidably arranged in each positioning hole, and the positioning column and the positioning member are connected to each other.

[0013] In an optional embodiment, the positioning member includes an external positioning portion and an internal positioning portion, the positioning column is fixedly connected to the external positioning portion, and a return spring is arranged between the external positioning portion and the internal positioning portion; the positioning holes opened on the upper and lower sides of the first wing plate and the second wing plate are connected to each other and form a positioning groove, and the positioning groove is connected to the locking hole. When the end of the trigger rod slides into the positioning groove through the locking hole, it can act to cause the internal positioning portions on both sides to slide toward the external positioning portions on the corresponding sides respectively.

[0014] In an optional embodiment, the buckle body includes a transverse portion and a longitudinal portion that form an angular connection, and a space for accommodating the other longitudinal portion is formed between the transverse portion and the longitudinal portion, so that when the two buckle bodies are buckled together, an overall structure with a rectangular cross-section can be formed, and the overall structure is a rotating body with the axial direction of the rotating column as the axis.

[0015] In an optional embodiment, the width of the transverse portion, the width of the longitudinal portion, and the width of the splicing groove are all consistent.

[0016] In an optional implementation manner, the number of the splicing bodies and the splicing pieces is six, and the enclosure structure formed by the six splicing bodies is a frame structure with a regular hexagonal cross-section.

[0017] In a second aspect, a pavement system uses a plurality of the above-mentioned assembled filler grid structures; in the plurality of assembled filler grid structures, enclosing structures are mutually spliced ​​into an integral grid; and a filler layer is arranged in the enclosed cavity of the enclosed structure.

[0018] In an optional implementation, a surface stone layer is paved on the upper side of the overall grid, a base layer is paved on the lower side of the overall grid, and side rails are movably connected on the left and right sides of the overall grid.

[0019] The beneficial effects of the embodiments of the present invention are:

[0020] The assembled filler grid structure provided by the embodiment of the present invention adopts the method of enclosing and splicing the splicing body and the splicing piece, and the formed enclosed structure also has the function of splicing each other, so that an overall grid can be formed to meet the requirements of assembly flexibility; in addition, when adjacent enclosed structures are spliced, the embedded groove is used to form a preliminary splicing in the vertical direction, and then the buckle body is rotated by rotating to make the buckling direction and the vertical direction form an angle, so as to prevent easy falling off from the vertical direction, ensure the stability of the splicing, and at the same time, the splicing piece can be locked by the trigger member, further ensuring the connection stability of the structure, thereby meeting the stability requirements after assembly;

[0021] The pavement system provided by the embodiment of the present invention utilizes the above-mentioned multiple filler grid structures to form an overall grid, and can have the characteristics of flexibility and stability in assembling the filler grid structure, so that the filler layer can be stably filled in the enclosed cavity, thereby forming a stable pavement support structure;

[0022] In general, the assembled filler grid structure and pavement system provided by the embodiments of the present invention can be installed and formed in sequence through the splicing body and the splicing piece, and can also be assembled into an enclosure structure before leaving the factory and then installed on site. Regardless of the mode, it has the characteristics of flexible installation and can adapt to roadbed surface conditions of different shapes. It also has the function of one-button rotation and locking after assembly, which not only simplifies the operation, but also enables the connecting parts and the connecting body of the enclosure structure to be locked with each other, and has the characteristics of stable connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 An overall schematic diagram of a grid structure provided by an embodiment of the present invention;

[0025] Figure 2 for Figure 1 The schematic diagram of the partial structure of the grid structure shown in the figure without the positioning columns;

[0026] Figure 3 A schematic diagram of the structure of a splicing body provided by an embodiment of the present invention;

[0027] Figure 4 A schematic diagram of the internal structure of the assembly of the splicing body and the splicing pieces provided in an embodiment of the present invention;

[0028] Figure 5 A schematic diagram of a portion of the structure of the overall grid provided in an embodiment of the present invention.

[0029] Icons: 1-joining body; 2-joining piece; 11-plate body; 12-fastener; 13-embedded groove; 14-joining groove; 15-trigger piece; 16-guide hole; 21-first wing plate; 22-second wing plate; 23-positioning hole; 24-positioning column; 25-positioning piece; 26-locking hole; 100-enclosed structure; 101-enclosed cavity; 121-rotating column; 122-fastener body; 151-trigger ring; 152-trigger rod; 153-compression spring; 251-external positioning part; 252-reset spring; 253-internal positioning part. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0033] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0034] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0035] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example

[0036] Conventional concrete pavement is affected by winter freezing and thawing, and is prone to cracking and breaking. It needs maintenance all year round, especially above 4500m above sea level, where the temperature difference between day and night is large, and the frost heave is a daily cycle, with an annual cycle of more than 200 times. The conventional highest grade concrete F300 antifreeze grade basically needs maintenance every year, with a short service life, high cost, short construction period, and great construction difficulty. Therefore, for the construction of pavements and fields in high-cold and high-altitude areas, it is necessary to study a new road and field structure system that can be quickly constructed, low-cost, and has significant environmental adaptability, so as to reduce engineering costs, achieve fast and convenient construction, use local materials, be able to be constructed at any time without being affected by the climate, and have strong environmental adaptability and long service life.

[0037] After research, it is found that the use of prefabricated pavement system can meet this requirement. The prefabricated pavement system can be composed of base layer, pavement layer and surface layer. The base layer is composed of graded soil and stone materials. Different soil and stone grade ingredients can be selected according to the functional requirements and local building materials. Graded slag can be selected for high bearing capacity and graded soil can be selected for low bearing capacity. The base layer needs to be compacted by rolling; the pavement layer is composed of spliced ​​grids or integral grids filled with strong permeable graded stones (excluding fine materials), which are compacted by static pressure. The main function of the pavement layer is permeable and anti-freezing. The purpose of the spliced ​​grids or integral grids is to fix and enhance the bearing capacity of strong permeable stones to prevent vehicles and equipment from sinking; the surface layer is composed of fine stones, which are mainly leveling, permeable, easy to clean, and clean in appearance.

[0038] The intermediate layer grid structure of the prefabricated pavement system needs to meet the requirements of flexible installation. This embodiment provides a grid structure with flexible installation. For details, please refer to Figure 1-Figure 5 , an assembled filler grid structure provided in this embodiment includes at least three pieces of splicing bodies 1 and a corresponding number of splicing pieces 2. The at least three pieces of splicing bodies 1 form an enclosure structure 100, which means that the enclosure structure 100 has at least three sides, for example, forming a hollow triangular prism, a quadrangular prism, a pentagonal prism or a hexagonal prism, so as to reduce the connection gap for the subsequent formation of the overall grid. In this embodiment, considering the problem of supporting strength, the number of the splicing bodies 1 and the splicing pieces 2 is six, and the enclosure structure 100 formed by the six pieces of splicing bodies 1 is a frame structure with a regular hexagonal cross-section, that is, in the form of a hollow hexagonal prism. Among them, adjacent splicing bodies 1 are connected by splicing pieces 2, and the traditional grid structure adopts the form of snap buckles or quick buckles, which cannot take into account both assembly flexibility and stability.

[0039] In view of the above problems, in the present embodiment, the splicing body 1 comprises a fastener 12 and a plate body 11 with an inner cavity, and the left and right sides of the plate body 11 (the left and right sides here refer to the left and right sides of the conventional vertical splicing direction during assembly for the convenience of description) are formed with an embedding groove 13 for accommodating the side wings of the splicing piece 2, and the outer side of the plate body 11 (the outer side here refers to the side spliced ​​with the plate body 11 of the adjacent enclosure mechanism 100) is provided with a splicing groove 14, and the groove direction of the embedding groove 13 and the splicing groove 14 is in the vertical direction; that is, a vertical splicing groove 14 is provided on the outer side of the plate body 11, and the splicing groove 14 passes through the upper and lower side surfaces of the plate body 11, and the left and right side walls of the plate body 11 are provided with a vertical embedding groove 13, and the embedding groove 13 passes through the upper and lower side surfaces of the plate body 11, thereby providing space for connection with other components.

[0040] The fastener 12 includes a rotating column 121 and a buckle body 122. The outer end of the rotating column 121 can rotatably pass through the inner cavity of the plate body 11 to the splicing groove 14, which means that the middle part of the rotating column 121 can rotatably cooperate with the plate body 11, and the outer end of the rotating column 121 is located in the splicing groove 14. The buckle body 122 is fixed to the outer end of the rotating column 121, and the buckle body 122 can be mutually buckled with another buckle body 122, so as to achieve the purpose of mutually splicing adjacent enclosure structures 100 through the plate body 11, that is, after the buckle body 122 of one plate body 11 is mutually buckled with the buckle body 122 of another plate body 11, the purpose of mutually splicing two adjacent enclosure structures 100 is achieved. Here, the mutual splicing of two adjacent enclosure structures 100 refers to the mutual buckling of the plates 11 on the sides of the two enclosure structures 100 that are close to each other, so as to have a basis for flexible assembly.

[0041] Trigger members 15 are provided on both sides of the inner cavity of the plate body 11, that is, trigger members 15 are provided on both the left and right side walls of the inner cavity of the plate body 11, and the trigger members 15 on each side form a movable locking connection with the splicing piece 2 on the corresponding side, and the movable locking connection means that the two can contact each other to form a lock, and can also separate from each other to form an unlock. When the rotating column 121 rotates to a first direction, the rotating column 121 can drive the trigger members 15 on both sides to lock the splicing piece 2 on the corresponding side, wherein the first direction forms an angle with the vertical direction, that is, the first direction and the vertical direction are non-parallel directions, so that the rotating column 121 can act on the trigger members 15 on both sides after rotating, so that the trigger members 15 produce displacement and / or posture changes, thereby forming a mutually locked or mutually separated form with the splicing piece 2.

[0042] Through the above technical scheme, the purpose of quick buckling between the plates 11 of adjacent enclosure structures 100 is utilized to achieve the requirement of flexible assembly. The flexible assembly can select the enclosure structures 100 of corresponding quantity and corresponding splicing form according to the shape of the paved foundation surface. Compared with the integral grid structure, it is more convenient to transport, especially to adapt to high-cold and high-altitude areas, and the assembly method can be adjusted, which is more flexible; at the same time, after quick assembly, the rotating column 121 can be rotated by a certain angle to realize that the assembly body 11 and the splicing pieces 12 on both sides are locked with each other, and the buckling direction of the fastener 12 can be changed to form an angle with the initial buckling (vertical) direction to reduce the possibility of easy buckling and withdrawal, and ensure the stability after buckling, especially in the environment where the paved foundation surface is under long-term pressure, so that the support stability of the enclosure structure 100 is stronger.

[0043] Please refer again Figure 4 In this embodiment, the trigger member 15 includes a trigger rod 152 and a compression spring 153. A trigger ring 151 is sleeved on the rotating column 121 located in the inner cavity of the plate body 11, which means that the trigger ring 151 is fixedly sleeved on the part where the rotating column 121 passes through the plate body 11 and stays in the inner cavity of the plate body 11. The trigger ring 151 is in the form of an ellipse or an irregular ellipse to facilitate the subsequent formation of a cam pair. A guide hole 16 is opened on the inner cavity wall (left and right side walls) of the plate body 11. The guide hole 16 connects the embedded groove 13 and the inner cavity of the plate body 11, that is, the guide hole 16 acts as a sliding channel connected in the middle. The trigger rod 152 is telescopically arranged in the guide hole 16 through the compression spring 153, which means that the compression spring 153 is installed in the guide hole 16 and is sleeved on the trigger rod 152 to form a fixed connection (an annular boss can be formed on the trigger rod 152 to achieve a fixed connection with the compression spring 153). When the trigger rod 152 slides along the guide hole 16 toward the side of the engaging groove 13, the compression spring 153 can provide a spring reaction force to facilitate the reset of the trigger rod 152.

[0044] One end of the trigger rod 152 forms a cam pair with the trigger ring 151, and the other end can slide into the lock hole 26 provided on the side wall of the splicing piece 12, which means that the lock hole 26 on the side wall of the splicing piece 12 is connected and communicated with the guide hole 16, and the outer end of the trigger rod 152 can be allowed to pass from the guide hole 16 into the lock hole 26. Through the above technical solution, when the rotating column 121 drives the trigger ring 151 (the long axis is located in the vertical direction in the initial state) to rotate, due to the side effect of the cam, the trigger rod 152 continues to slide toward the lock hole 26 and finally enters the lock hole 26, thereby preventing the splicing piece 2 from being separated from the embedding groove 13 in the vertical direction, and achieving the purpose of mutually locking the splicing body 1 and the splicing piece 2. It should be noted that the rotating column 121 and the plate body 11 are rotatably fixed in a manner, such as a threaded connection, a damping connection, or a movable clamping method, so that a stable state can be formed after the rotating column 121 rotates relative to the plate body 11. In this embodiment, a screw connection method is adopted, and the screw hole is configured on the inner side of the rotating column 121, which can be easily operated. In the process of the rotating column 121 and the trigger rod 152 continuously sliding toward the lock hole 26, the compression spring 153 is continuously compressed and provides a reaction force, and a stable equilibrium state is formed under the action of the trigger ring 151.

[0045] Considering that the entire enclosure structure 100 will be arranged between the base layer and the surface layer when in use, the base layer and the surface layer are both filling layers and are not standard flat surfaces. At this time, when the enclosure structure 100 is placed between the two layers, if the upper and lower sides of the plate body 100 are flat surfaces, it is easy for the enclosure structure 100 to be placed in an inclined manner and cannot be easily positioned to a horizontal state between the filled gravel layers. In view of the above problems, in this embodiment, please combine Figure 2 The splicing piece 2 includes a first wing plate 21 and a second wing plate 22 that are connected at an angle. The angle connection here means that the first wing plate 21 and the second wing plate 22 are connected in a non-parallel manner, and an angle is formed between the two to adapt to the situation of assembling different forms of enclosure structures 100. For example, when the angle is 120 degrees, it can be assembled into a hollow hexagonal prism enclosure structure 100, when it is 90 degrees, it can be assembled into a hollow quadrangular prism enclosure structure 100, and when it is 60 degrees, it can be assembled into a hollow triangular prism enclosure structure 100. Of course, in actual operation, splicing pieces 2 with different angles can also be configured to adapt to the assembly situations of more types of enclosure structures 100.

[0046] The first wing plate 21 and the second wing plate 22 both form the side wings of the splicing piece 2, and the first wing plate 21 and the second wing plate 22 are respectively used to insert the adjacent embedding grooves 13 of the two plate bodies 11, that is, the first wing plate 21 is embedded in the embedding groove 13 of one plate body 11, and the second wing plate 22 is embedded in the embedding groove 13 of the other plate body 11, so as to achieve the purpose of mutual assembly of a splicing piece 2 and two splicing bodies 1. The first wing plate 21 and the second wing plate 22 are both provided with positioning posts 24 on the upper and lower sides, and the positioning posts 24 can extend or taper into between the upper and lower filling layers, so that it is easier to find the horizontal placement state of the plate body 11, so as to ensure the horizontal placement of the enclosure structure 100.

[0047] On the basis of the above scheme, taking into account the flexibility and cushioning of the positioning column 24 extending into or coning into the filling layer, positioning holes 23 are provided on the upper and lower sides of the first wing plate 21 and the second wing plate 22, and a positioning member 25 with a reset function is slidably arranged in each positioning hole 23. The reset function here means that the positioning member 25 has a sliding reset function, for example, it is achieved by a spring or an electric telescopic member, and the positioning column 24 and the positioning member 25 are connected to each other.

[0048] Through the above technical solution, the positioning column 24 can follow the positioning member 25 to have the function of sliding reset, and can automatically adjust the effective length of extending into or coning into the filling layer, thereby reducing the difficulty of the board body 11 finding a horizontal placement state. Especially when the base layer is laid first, the positioning column 24 on the lower side of the board body 11 has a telescopic function within a certain range, so that when the board body 11 is placed on the base layer, the horizontal degree of the board body 11 can be directly adjusted. At this time, the positioning column 24 adaptively adjusts the position and length of extending or coning into, making the whole process faster. Similarly, when laying the surface stone layer, the filling material can be coated according to the position of the positioning column 24, and the positioning column 24 can also adaptively shorten the length when coating, thereby ensuring the stability of the connection with the surface layer.

[0049] It should be noted that the use of positioning columns 24 that can be extended and retracted within a certain range not only makes it easier to connect the plate body 11 with the base layer and the surface stone layer after the bulge is formed on the flat surface of the plate body 11, but also utilizes the extension or cone-in characteristics of the positioning columns 24 to reduce the possibility of overall horizontal displacement of the plate body 11 after connection. In some cases, in order to stack or increase the height of the enclosure structure 100, the positioning columns 24 and the positioning holes 23 can also be used as plug-ins when splicing the upper and lower parts, that is, the upper positioning columns 24 of the lower plate body 11 are plugged into the lower positioning holes 23 of the upper plate body 11, thereby achieving the purpose of adjusting the height of the enclosure structure 100 (generally speaking, the overall height of the enclosure structure 100 is between 15-30 cm, and the maximum diameter is between 30-100 cm).

[0050] In this embodiment, considering that the positioning column 24 has a sliding buffer function, the connection stability can be further improved. For example, during the paving process, when the surface stone layer or the base layer is squeezed and the positioning column 24 shrinks into the positioning hole 23, the connection stability between the plate body 11 and the upper and lower filling layers is reduced. For this problem, please refer to Figure 4 The positioning member 25 includes an outer positioning portion 251 and an inner positioning portion 253. The outer positioning portion 251 is located on the outer side of the positioning hole 23 (close to the hole opening), and the inner positioning portion 253 is located on one side of the positioning hole 23 (close to the hole bottom or the hole center). The positioning column 24 is fixedly connected to the outer positioning portion 251, for example, by threading. A reset spring 252 is provided between the outer positioning portion 251 and the inner positioning portion 253, so that the positioning member 25 has a telescopic reset function.

[0051] On the basis of the above technical solution, the positioning holes 23 opened on the upper and lower sides of the first wing plate 21 and the second wing plate 22 are interconnected to form a positioning groove, that is, the two positioning holes 23 are pulled through to form a positioning groove, so that the two positioning members 25 have the conditions to be close to each other and contact. It should be noted that a limiting block is formed on the inner positioning portion 253 of the positioning member 25, and a limiting block is also provided on the groove wall of the positioning groove. The two limiting blocks limit each other to limit the maximum inner sliding position of the inner positioning portion 253 to be close to the lock hole 26. The positioning groove is connected to the lock hole 26. When the end of the trigger rod 152 slides into the positioning groove through the lock hole 26, it can act on the inner positioning portions 253 on both sides to slide toward the outer positioning portions 251 on the corresponding side respectively. That is to say, in the initial state (such as Figure 4 As shown in the figure, the ends of the two inner positioning parts 253 are both located in the axial projection area of ​​the locking hole 26. When the trigger rod 152 slides into the locking hole 26 to limit the displacement of the splicing piece 2 in the vertical direction, it can further slide into the positioning groove (by adjusting the difference between the short axis and the long axis parameters of the trigger ring 151) to interact with the ends of the inner positioning parts 253. The interaction method is similar to the bevel extrusion method. For example, the ends of the inner positioning parts 253 and the ends of the trigger rod 152 are both conical surfaces. After contacting each other, they can form extrusion to make the acted object slide.

[0052] When the trigger rod 152 squeezes the inner positioning part 253 to slide, the return spring 252 is further compressed under the joint action of the inner positioning part 253 and the outer positioning part 251, approaching the compression limit, so that the entire positioning member 25 approaches a rigid body. At this time, the outer positioning part 251 and the positioning column 24 are no longer easily moved, so that after being stably laid on the base layer, the connection state of the positioning column 24 and the base layer is stabilized by locking the splicing piece 2 and the splicing body 1, so as to form a stable connection between the plate body 11 and the lower filling layer. Similarly, when the surface stone layer is laid thereafter, the positioning column 24 only undergoes a slight expansion and contraction displacement, so as to ensure the stability of the connection with the surface stone layer.

[0053] In some embodiments, in order to ensure that there is no extra height difference between adjacent enclosure structures 100 in the vertical direction, that is, the two are at the same level after being assembled. Figure 3 , the buckle body 122 includes a horizontal part and a vertical part that form an angular connection. The angular connection here refers to the vertical connection between the two to form a connection form with a "V" cross section. A space is formed between the horizontal part and the vertical part to accommodate the other vertical part, so that when the two buckle bodies 122 are buckled together, an overall structure with a rectangular cross section can be formed. The overall structure is a rotating body with the axis along the axial direction of the rotating column 121 as the axis. Through this technical solution, the rectangular body formed by the two L-shaped buckle bodies 122 after being buckled together is a rotating body. The rotating body is rotationally symmetrical about the axial direction of the rotating column 121, so that there is no unnecessary height difference after the adjacent plate bodies 11 are spliced, and the two are at the same horizontal height, especially after the rotating column 121 of one is rotated 180 degrees (the buckle mouth faces downward) and is spliced ​​with the other (the buckle mouth faces upward). There is no horizontal height difference.

[0054] In the above technical solution, in order to ensure that there is no excess gap in the horizontal direction between the adjacent enclosure structures 100, the width of the transverse portion, the width of the longitudinal portion and the width of the splicing groove 14 are all consistent, that is, the transverse portion is located in the splicing groove 14, and the longitudinal portion extends out by one unit of width relative to the splicing groove 14, that is, extends out by the width of one transverse portion, so that when two buckle bodies 122 are spliced, the transverse portion of one is located in the previous splicing groove 14, and the longitudinal portion is located in the next splicing groove 14, and the transverse portion of the other is located in the next splicing groove 14, and the longitudinal portion is located in the previous splicing groove 14, thereby achieving the purpose of mutual contact between the sides of the two to reduce the horizontal excess gap.

[0055] This embodiment also provides a pavement system, using a plurality of the above-mentioned assembled filler grid structures; see Figure 5In the multiple assembled filler grid structures, the enclosure structures 100 are spliced ​​together to form an overall grid. A filler layer is arranged in the enclosure cavity 01 of the enclosure structure 100. The filler layer can be multi-layered. The maximum particle size of the filler is 0.2 times the mesh diameter. The filler is screened by particle size and has a high degree of uniformity. Even without assembly, it can form a stable support.

[0056] In addition, a surface stone layer is paved on the upper side of the overall grid, a base layer is paved on the lower side of the overall grid, and side rails are movably connected on the left and right sides of the overall grid, so as to achieve the purpose of forming a stable connection with the roadbed surface. Specifically, under normal circumstances, the surface stone layer is in principle in the range of 5cm-12cm in thickness. Considering the bearing capacity of the foundation, the base layer uses graded stones after rolling. That is, under normal circumstances, parking is the simplest basic rolling and surface treatment is sufficient. If you consider parking heavy equipment, the base surface layer is paved with a thick layer after the foundation treatment, and the thickness is about 12cm. Then the stones of different thicknesses can be leveled. First, lay the base layer on the roadbed surface, then fix the side rails on the edge of the road surface, and then assemble the assembled filler grid structure. It should be noted that when the edge enclosure structure 100 is assembled with the side rails, the edge enclosure structure 100 is only assembled. Figure 5 The half of the splicing body 1 shown ensures that the edge of the entire grid is a horizontal line, and then the splicing piece 2 is inserted between the splicing body 1 and the side rail that are not enclosed by the edge enclosure structure 100 to connect. That is, an embedding groove 13 is provided on the side rail, which can form a space for accommodating the splicing piece 2 between the embedding groove 13 of the separate splicing body 1, thereby achieving the purpose of rapid assembly between the two.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention. It should be noted that the structures or components illustrated in the accompanying drawings are not necessarily drawn to scale, and the present invention omits the description of known components and processing technologies and processes to avoid unnecessary limitations on the present invention.

Claims

1. An assembled packing grid structure, characterized in that: It comprises at least three splicing bodies and a corresponding number of splicing pieces, wherein at least three splicing bodies form an enclosed structure, and adjacent splicing bodies are connected by the splicing pieces; Wherein, the splicing body comprises a fastener and a plate body with an inner cavity, the plate body is formed with an embedding groove for accommodating the side wings of the splicing piece on the left and right sides, the plate body is provided with a splicing groove on the outside, and the embedding groove and the splicing groove are in a vertical direction; the fastener comprises a rotating column and a buckle body, the outer end of the rotating column can rotatably pass through the inner cavity of the plate body to the splicing groove, the buckle body is fixed to the outer end of the rotating column, and the buckle body can be mutually buckled with another buckle body; Trigger members are provided on both sides of the inner cavity of the plate body, and the trigger member on each side forms a movable locking connection with the splicing member on the corresponding side. When the rotating column rotates to a first direction, the rotating column can drive the trigger members on both sides to lock the splicing member on the corresponding side, and the first direction forms an angle with the vertical direction.

2. The assembled packing grid structure according to claim 1, characterized in that: The trigger member includes a trigger rod and a compression spring. A trigger ring is sleeved on the rotating column located in the inner cavity of the plate body. A guide hole is opened on the inner cavity wall of the plate body. The guide hole connects the embedding groove and the inner cavity of the plate body. The trigger rod is telescopically arranged in the guide hole through the compression spring. One end of the trigger rod forms a cam pair with the trigger ring, and the other end can slide into the lock hole opened in the side wall of the splicing piece.

3. The assembled packing grid structure according to claim 2, characterized in that: The splicing piece includes a first wing plate and a second wing plate connected at an angle, the first wing plate and the second wing plate both form side wings of the splicing piece, and the first wing plate and the second wing plate are respectively used to plug into the adjacent engaging grooves of the two plate bodies; positioning columns are provided on the upper and lower sides of the first wing plate and the second wing plate.

4. The assembled packing grid structure according to claim 3, characterized in that: Positioning holes are provided on both upper and lower sides of the first wing plate and the second wing plate. A positioning piece with a reset function is slidably arranged in each of the positioning holes. The positioning column is connected to the positioning piece.

5. The assembled packing grid structure according to claim 4, characterized in that: The positioning member comprises an outer positioning part and an inner positioning part, the positioning column is fixedly connected to the outer positioning part, and a return spring is arranged between the outer positioning part and the inner positioning part; The positioning holes opened on the upper and lower sides of the first wing plate and the second wing plate are connected to each other to form a positioning groove, and the positioning groove is connected to the locking hole. When the end of the trigger rod slides into the positioning groove through the locking hole, the inner positioning parts on both sides can slide toward the outer positioning parts on the corresponding sides.

6. The assembled packing grid structure according to claim 1, characterized in that: The buckle body includes a transverse portion and a longitudinal portion that form an angular connection, and a space for accommodating another longitudinal portion is formed between the transverse portion and the longitudinal portion, so that when the two buckle bodies are buckled together, an overall structure with a rectangular cross-section can be formed, and the overall structure is a rotating body with the axial direction of the rotating column as the axis.

7. The assembled packing grid structure according to claim 6, characterized in that: The width of the transverse portion, the width of the longitudinal portion and the width of the splicing groove are all consistent.

8. The assembled packing grid structure according to any one of claims 1 to 7, characterized in that: The number of the splicing bodies and the splicing pieces is six, and the enclosure structure formed by the six splicing bodies is a frame structure with a regular hexagonal cross section.

9. A pavement system, characterized in that: Using a plurality of assembled filler grid structures as described in any one of claims 1 to 8; In a plurality of the assembled filler grid structures, the enclosing structures are spliced ​​together to form an integral grid; a filler layer is arranged in the enclosed cavity of the enclosed structure.

10. The pavement system according to claim 9, characterized in that: A surface stone layer is paved on the upper side of the overall grid, a base layer is paved on the lower side of the overall grid, and side rails are movably connected on the left and right sides of the overall grid.

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