Fabricated house wall board with high stability

Abstract

The invention relates to the technical field of house buildings, in particular to a high-stability fabricated house wall board which is formed by splicing a plurality of board bodies. The plurality of plate bodies which are distributed left and right are mutually butted and fixed by utilizing the swallow-tail-shaped butting blocks and the swallow-tail-shaped butting grooves; grouting holes are formed in the positions, located in the dovetail-shaped butt joint grooves, of the front face and the back face of the plate body; after the multiple plate bodies are spliced, concrete mortar is injected into the grouting holes through the grouting equipment box, the concrete mortar flows into the dovetail-shaped butt-joint grooves, gaps between the dovetail-shaped butt-joint grooves and the dovetail-shaped butt-joint blocks are filled with the concrete mortar, and a whole is formed; the dovetail-shaped butt-joint block is matched with the dovetail-shaped butt-joint groove, the firmness of the connecting joint is improved, meanwhile, concrete mortar is poured into a gap between the dovetail-shaped butt-joint block and the dovetail-shaped butt-joint groove, and the stability and firmness of the connecting joint are improved. According to the connecting structure, the wallboards can be connected more conveniently, more accurately and more firmly, the probability that gaps between the wallboards are uneven is reduced, and the problem that the wallboards fall off due to external force factors such as earthquakes is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of house construction, and in particular to a highly stable assembled house wall panel. Background Art

[0002] The connection between wall panels in prefabricated houses is currently a key issue. Improper design or construction of the connection nodes may lead to gaps and unevenness between the wall panels, affecting the overall appearance and waterproof performance of the house. In addition, under the influence of external forces such as earthquakes, the reliability of the connection nodes is directly related to the structural safety of the house. A loose connection may cause the wall panels to fall off, posing a serious safety hazard. Summary of the Invention

[0003] The purpose of the present invention is to address the defects and shortcomings of the existing technology and provide a highly stable prefabricated house wall panel, which can make the connection between wall panels more convenient, more accurate, and more secure, helping to reduce the probability of uneven gaps between wall panels, while enhancing the overall stability and reducing the problem of wall panel falling off due to external factors such as earthquakes.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: it is composed of a plurality of plate bodies spliced ​​together; the left and right longitudinal sides of each plate body in the middle are provided with dovetail-shaped docking blocks, and dovetail-shaped docking grooves are provided between adjacent dovetail-shaped docking blocks, and the dovetail-shaped docking grooves are also provided at the left and right longitudinal side positions of the plate body; the plate bodies located on the far left and right sides have only one longitudinal side provided with a dovetail-shaped docking block and a dovetail-shaped docking groove; the dovetail-shaped docking blocks and dovetail-shaped docking grooves on the left and right sides are staggered up and down, so that the load on the plate body is transmitted through nodes at different positions, avoiding concentration on a straight line or an area, making the structure more uniformly stressed; at the same time, the stiffness distribution of the plate body in and out of the plane is more reasonable, and when the structure When the structure is subjected to external forces such as earthquake force and wind force, it can effectively resist deformation and reduce the occurrence of damage such as wall cracking and panel falling off; the multiple panels distributed on the left and right are fixed to each other by using dovetail docking blocks and dovetail docking grooves; the front and back sides of the panels are located at the dovetail docking grooves, and grouting holes are opened; after the multiple panels are spliced ​​together, concrete mortar is injected into the grouting holes using the grouting equipment box, and the concrete mortar flows into the dovetail docking grooves, filling the gap between the dovetail docking grooves and the dovetail docking blocks, and forming a whole; the cooperation of the dovetail docking blocks and the dovetail docking grooves increases the firmness of the connection nodes, and at the same time, the concrete mortar is poured into the gap between the two, increasing the stability and firmness of the connection nodes.

[0005] Preferably, the dovetail-shaped docking block comprises: The docking block body is integrally formed on the plate body, and grooves are provided on the front and back surfaces of the docking block body; and a plurality of steel bar through-holes are provided transversely in the docking block body; A movable top block, which is movably embedded in the groove and connected to the groove by a spring; The guiding reinforcement steel bar matrix passes through the steel bar through-holes, and both ends of the guiding reinforcement steel bar respectively pass through the front and rear springs and are movably inserted into the insertion hole of the movable top block.

[0006] Preferably, the outer side surface of the movable top block is a sloped structure that matches the front and rear side walls in the dovetail-shaped docking groove.

[0007] Preferably, the inner longitudinal edge of the movable top block is bent outwards to form a clamping edge integrally; the inner longitudinal edge of the dovetail-shaped docking groove is integrally formed with a clamping groove, and the clamping edge is movably inserted into the clamping groove.

[0008] Preferably, a transverse fixing through-hole 1 is provided through the front and back of the docking block body, and a transverse fixing through-hole 2 is provided through the front and back of the movable top block; after the transverse fixing pin passes through the grouting hole, it is inserted into the transverse fixing through-hole 1 and the transverse fixing through-hole 2; concrete mortar is injected to fill the steel bar through-hole, the transverse fixing through-hole 1 and the transverse fixing through-hole 2; the aperture of the transverse fixing through-hole 2 is slightly smaller than the aperture of the grouting hole.

[0009] Preferably, the plate body is provided with non-through grouting circulation holes at the upper and lower ends at the positions of the dovetail-shaped docking grooves. The grouting circulation holes are connected to the grouting holes. After the concrete mortar is injected from the grouting holes, the internal spaces of the upper and lower dovetail-shaped docking grooves are completely filled through the grouting circulation holes and connected as one.

[0010] Preferably, the cross-section of the grouting circulation hole is a multi-tooth structure, which is used to increase the contact area between the concrete mortar and the plate body and improve the bite force.

[0011] The installation steps of the present invention are as follows: First, according to the height and area of ​​the installation space, the qualified panels are processed and produced; Next, select the leftmost or rightmost panel and install it on the side wall, depending on your installation needs. Use the triangular wedge-shaped pins at the bottom to secure it in place. Then, the plate body with dovetail-shaped docking blocks and dovetail-shaped docking grooves on both sides is docked with the already installed plate body, so that the dovetail-shaped docking blocks are inserted into the dovetail-shaped docking grooves. During the insertion process, the movable top block is squeezed in. When the clamping edge moves to the clamping groove position, it is inserted into the clamping groove under the elastic force of the spring. At this time, the movable top blocks on the front and rear sides are both in contact with the front and rear inner inclined surfaces of the dovetail-shaped docking grooves under the elastic force of the spring; Then, the transverse fixing pin is passed through the grouting hole and inserted into the transverse fixing through-hole 1 and the transverse fixing through-hole 2 to transversely fix the dovetail-shaped docking block and the dovetail-shaped docking groove; Next, one grouting hole is retained on the longitudinal side of the plate, and the remaining grouting holes are sealed with plugs. Then, concrete mortar is injected into the unblocked grouting hole using grouting equipment, and then injected through the transverse fixed perforation 1, transverse fixed perforation 2, and grouting flow holes to fill all the dovetail-shaped joint grooves on one longitudinal side and all the gaps in the dovetail-shaped joint blocks. After the concrete mortar solidifies, the grouting holes into which the concrete mortar was injected are sealed with plugs. This process is repeated until the last plate, and the dovetail-shaped joint block of the last plate is slightly tilted and inserted into the dovetail-shaped joint groove. The plate is then pushed so that it is flush with the remaining plates, and a triangular wedge-shaped pin is inserted at the bottom. Finally, fill the joints of all panels, the gaps between the panels on the left and right sides and the walls, and the gaps between the upper and lower side walls of all panels and the upper and lower walls with grouting. After solidification, pull out the triangular wedge-shaped pins at the bottom of all panels, fill the gaps with grouting, and scrape off all overflow.

[0012] Preferably, when an error occurs in the docking of the plates, two push rods are inserted into the front and rear grouting holes, and the push rods push the movable top block toward the docking block body until the engaging edge exits the engaging groove, and then the plates can be pulled, removed, and re-docking can be performed.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention provides a highly stable prefabricated house wall panel, which can make the connection between the wall panels more convenient, more accurate, and more secure, helping to reduce the probability of uneven gaps between the wall panels. When the structure is subjected to external forces such as earthquakes and wind, it can effectively resist deformation, reduce the occurrence of damage such as wall cracking and panel falling off, and at the same time enhance the overall stability and reduce the problem of wall panel falling off caused by external forces such as earthquakes. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the plate body of the present invention.

[0015] Figure 2 It is a diagram of the splicing state of the plates in the middle position of the present invention.

[0016] Figure 3 It is a longitudinal sectional view of the plate body of the present invention.

[0017] Figure 4 It is an exploded view of the dovetail-shaped docking block of the present invention.

[0018] Figure 5 yes Figure 4Enlarged view of part A in the middle.

[0019] Figure 6 It is a transverse cross-sectional view of the plate body of the present invention at the position of the dovetail-shaped docking groove on the lower side.

[0020] Description of reference numerals: Plate body 1, dovetail-shaped docking groove 1-1, grouting hole 1-2, grouting circulation hole 1-3, snap-in groove 1-4, dovetail-shaped docking block 2, docking block main body 3, steel bar through-hole 3-1, horizontal fixed through-hole 1 3-2, movable top block 4, snap-in edge 4-1, horizontal fixed through-hole 2 4-2, guide reinforcement steel bar 5, spring 6, horizontal fixing pin 7. DETAILED DESCRIPTION

[0021] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. The preferred embodiments described are only used as examples. All other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of the present invention.

[0022] like Figures 1-6As shown, this specific embodiment adopts the following technical solution: it is composed of a plurality of plate bodies 1; each plate body 1 located in the middle is provided with a dovetail-shaped docking block 2 on the left and right longitudinal sides, and a dovetail-shaped docking groove 1-1 is provided between adjacent dovetail-shaped docking blocks 2, and the dovetail-shaped docking groove 1-1 is also provided at the left and right longitudinal side positions of the plate body 1; the plate body 1 located on the leftmost and rightmost sides has only one longitudinal side provided with a dovetail-shaped docking block 2 and a dovetail-shaped docking groove 1-1; the dovetail-shaped docking blocks 2 and dovetail-shaped docking grooves 1-1 on the left and right sides are provided with a dovetail-shaped docking block 2 and a dovetail-shaped docking groove 1-1 on the left and right sides. The grooves 1-1 are all staggered up and down, so that the load on the plate body 1 is transmitted through nodes at different positions, avoiding concentration on a straight line or an area, making the structure more evenly stressed; at the same time, the stiffness distribution of the plate body 1 in and out of the plane is more reasonable. When the structure is subjected to external forces such as earthquake force and wind force, it can effectively resist deformation and reduce the occurrence of damage such as wall cracking and plate falling off; the multiple plates 1 distributed on the left and right are fixed to each other by using dovetail docking blocks 2 and dovetail docking grooves 1-1; the front and back of the plate body 1 are fixed to each other. The surface is located at the position of the dovetail butt joint groove 1-1, and a grouting hole 1-2 is opened; after the multiple panels 1 are spliced ​​together, the grouting hole 1-2 is injected with concrete mortar using the grouting equipment box, and the concrete mortar flows into the dovetail butt joint groove 1-1, filling the gap between the dovetail butt joint groove 1-1 and the dovetail butt joint block 2, and forming a whole; the cooperation of the dovetail butt joint block 2 and the dovetail butt joint groove 1-1 increases the firmness of the connection node, and at the same time, the concrete mortar is poured into the gap between the two to increase the stability and firmness of the connection node. Solidity; the plate body 1 is provided with non-through grouting circulation holes 1-3 at the upper and lower ends at the positions of the dovetail-shaped docking grooves 1-1. The grouting circulation holes 1-3 are connected with the grouting holes 1-2. After the concrete mortar is injected from the grouting holes 1-2, the internal spaces of the upper and lower dovetail-shaped docking grooves 1-1 are completely filled through the grouting circulation holes 1-3 and connected as one; the cross-section of the grouting circulation holes 1-3 is a multi-tooth structure, which is used to increase the contact area between the concrete mortar and the plate body 1 and improve the bite force.

[0023] The dovetail-shaped docking block 2 comprises: The docking block body 3 is integrally formed on the plate body 1, and grooves are provided on the front and back surfaces of the docking block body 3; and a plurality of steel bar through-holes 3-1 are transversely provided in the docking block body 3; A movable top block 4 is movably embedded in the above-mentioned groove, and the two are connected by a spring 6; the outer side of the movable top block 4 is a sloped structure that matches the front and rear side walls of the dovetail-shaped docking groove 1-1; the inner longitudinal edge of the movable top block 4 is bent outward to form a clamping edge 4-1; the inner longitudinal edge of the dovetail-shaped docking groove 1-1 is integrally formed with a clamping groove 1-4, and the clamping edge 4-1 is movably inserted into the clamping groove 1-4; The guiding reinforcement steel bar 5 is a matrix that passes through the steel bar through-hole 3-1, and both ends of the guiding reinforcement steel bar 5 pass through the front and rear springs 6 respectively, and are movably inserted into the jack of the movable top block 4.

[0024] A transverse fixing through-hole 1 3-2 is provided through the front and back of the docking block body 3, and a transverse fixing through-hole 2 4-2 is provided through the front and back of the movable top block 4; after the transverse fixing pin 7 passes through the grouting hole 1-2, it is inserted into the transverse fixing through-hole 1 3-2 and the transverse fixing through-hole 2 4-2; concrete mortar is injected to fill the steel bar through-hole 3-1, the transverse fixing through-hole 1 3-2 and the transverse fixing through-hole 2 4-2; the aperture of the transverse fixing through-hole 2 4-2 is slightly smaller than that of the grouting hole 1-2.

[0025] The installation steps of the present invention are as follows: First, according to the height and area of ​​the required installation space, a qualified plate 1 is processed and produced; Next, according to the installation requirements, select the leftmost or rightmost panel 1 and install it on the side wall, and use the triangular wedge-shaped pins at the bottom to tighten it in place; Then, the plate body 1 with dovetail docking blocks 2 and dovetail docking grooves 1-1 on both sides is docked with the already installed plate body 1, so that the dovetail docking block 2 is inserted into the dovetail docking groove 1-1. During the insertion process, the movable top block 4 is squeezed in, and when the clamping edge 4-1 moves to the clamping groove 1-4 position, it is inserted into the clamping groove 1-4 under the elastic force of the spring 6. At this time, the movable top blocks 4 on the front and rear sides are both in contact with the front and rear inner inclined surfaces of the dovetail docking groove 1-1 under the elastic force of the spring 6; when an error occurs in the docking of the plate body 1, two push rods are inserted into the front and rear grouting holes 1-2, and the push rods push the movable top block 4 toward the docking block body 3 until the clamping edge 4-1 exits the clamping groove 1-4, and the plate body 1 can be pulled to remove the plate body 1 for re-docking; Then, the transverse fixing pin 7 is passed through the grouting hole 1-2 and inserted into the transverse fixing through-hole 1 3-2 and the transverse fixing through-hole 2 4-2 to transversely fix the dovetail-shaped docking block 2 and the dovetail-shaped docking groove 1-1; Next, one grouting hole 1-2 is retained on the longitudinal side of the plate body 1, and the remaining grouting holes 1-2 are sealed with plugs; then, concrete mortar is injected into the unblocked grouting hole 1-2 using a grouting device, and is injected through the transverse fixed perforation 1 3-2, the transverse fixed perforation 2 4-2, and the grouting flow hole 1-3, filling all the dovetail-shaped docking grooves 1-1 on one longitudinal side and all the gaps in the dovetail-shaped docking blocks 2. After the concrete mortar solidifies, the grouting holes 1-2 into which the concrete mortar has been injected are sealed with plugs; this process is repeated until the last plate body 1, and the dovetail-shaped docking block 2 of the last plate body 1 is slightly tilted and inserted into the dovetail-shaped docking groove 1-1. Then, the plate body 1 is pushed so that it is flush with the remaining plate bodies 1, and a triangular wedge-shaped pin is inserted at the bottom. Finally, fill the joint gaps of all panels 1, the gaps between the panels 1 and the wall on the left and right sides, and the gaps between the upper and lower side walls of all panels 1 and the upper and lower walls with grouting. After solidification, pull out the triangular wedge-shaped pins at the bottom of all panels 1, fill the gaps with grouting, and scrape off all overflow.

[0026] Compared with the prior art, the present invention has the following beneficial effects: 1. The point-to-point dovetail joint blocks and dovetail joint grooves make the connection between wall panels more convenient and accurate; 2. Except for the connection nodes between the panels, the rest of the panels are flat structures, which helps to reduce the probability of uneven gaps between the wall panels; 3. The connection nodes that are staggered up and down can effectively resist deformation when the structure is subjected to external forces such as earthquakes and wind forces, reducing the occurrence of damage such as wall cracking and panel falling off. At the same time, it can enhance the overall stability and reduce the problem of wall panel falling off caused by external forces such as earthquakes; 4. The combination of the movable top block and the docking block body facilitates the installation and disassembly of the connection node, and the connection is more secure under the action of the spring; 5. The use of concrete mortar combined with multiple circulation channels connects multiple connection nodes into one, increasing the overall stability.

[0027] For those skilled in the art, they can modify the technical solutions described in the aforementioned embodiments and make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A highly stable prefabricated house wall panel, characterized by: It is composed of a plurality of plate bodies (1) spliced ​​together; each plate body (1) located in the middle is provided with a dovetail-shaped docking block (2) on the left and right longitudinal sides, and a dovetail-shaped docking groove (1-1) is provided between adjacent dovetail-shaped docking blocks (2), and the dovetail-shaped docking groove (1-1) is also provided at the left and right longitudinal sides of the plate body (1); the plate body (1) located on the leftmost and rightmost sides has only one longitudinal side provided with a dovetail-shaped docking block (2) and a dovetail-shaped docking groove (1-1); the dovetail-shaped docking blocks (2) and dovetail-shaped docking groove (1-1) on the left and right sides are staggered up and down, so that the load on the plate body (1) is transmitted through nodes at different positions, avoiding concentration on a straight line or a region, so that the load on the structure is more uniform; at the same time, the plate body (1) is staggered up and down, so that the load on the plate body (1) is transmitted through nodes at different positions, avoiding concentration on a straight line or a region, so that the load on the structure is more uniform; at the same time, the load on the plate body (1) is staggered up and down, so that ... ) has a more reasonable stiffness distribution in and out of the plane, and when the structure is subjected to external forces such as earthquake force and wind force, it can effectively resist deformation and reduce the occurrence of wall cracking and plate falling damage; the multiple plate bodies (1) distributed on the left and right are connected and fixed to each other by using dovetail-shaped docking blocks (2) and dovetail-shaped docking grooves (1-1); the front and back sides of the plate body (1) are located at the dovetail-shaped docking grooves (1-1) and are both provided with grouting holes (1-2); after the multiple plate bodies (1) are spliced ​​together, concrete mortar is injected into the grouting holes (1-2) of the grouting equipment box, and the concrete mortar flows into the dovetail-shaped docking grooves (1-1), filling the gap between the dovetail-shaped docking grooves (1-1) and the dovetail-shaped docking blocks (2), and forming a whole.

2. The high-stability prefabricated house wall panel according to claim 1, characterized in that: The dovetail-shaped docking block (2) comprises: A docking block body (3), wherein the docking block body (3) is integrally formed on the plate body (1), and grooves are provided on the front and back surfaces of the docking block body (3); and a plurality of steel bar through-holes (3-1) are transversely provided in the docking block body (3); A movable top block (4), the movable top block (4) is movably embedded in the above-mentioned groove, and the two are connected by a spring (6); The guiding reinforcement steel bar (5) is a matrix of the guiding reinforcement steel bar (5) that penetrates the steel bar through-hole (3-1), and both ends of the guiding reinforcement steel bar (5) respectively pass through the front and rear springs (6) and are then movably inserted into the insertion hole of the movable top block (4).

3. The high-stability prefabricated house wall panel according to claim 2, characterized in that: The outer side surface of the movable top block (4) is a sloped structure that matches the front and rear side walls of the dovetail-shaped docking groove (1-1).

4. The high-stability prefabricated house wall panel according to claim 3, characterized in that: The inner longitudinal edge of the movable top block (4) is bent outwards to form a snap-fit ​​edge (4-1); the inner longitudinal edge of the dovetail-shaped docking groove (1-1) is formed into a snap-fit ​​groove (1-4), and the snap-fit ​​edge (4-1) is movably inserted into the snap-fit ​​groove (1-4).

5. The high-stability prefabricated house wall panel according to claim 4, characterized in that: A first transverse fixing through-hole (3-2) is provided through the front and back of the docking block main body (3), and a second transverse fixing through-hole (4-2) is provided through the front and back of the movable top block (4); after the transverse fixing pin (7) passes through the grouting hole (1-2), it is inserted into the first transverse fixing through-hole (3-2) and the second transverse fixing through-hole (4-2); concrete mortar is injected to fill the steel bar through-hole (3-1), the first transverse fixing through-hole (3-2) and the second transverse fixing through-hole (4-2); the aperture of the second transverse fixing through-hole (4-2) is smaller than the aperture of the grouting hole (1-2).

6. The high-stability prefabricated house wall panel according to claim 5, characterized in that: The plate body (1) is provided with non-through grouting holes (1-3) at both ends of the upper and lower ends at the positions of the dovetail-shaped butt joint grooves (1-1). The grouting holes (1-3) are connected to the grouting holes (1-2). After the concrete mortar is injected from the grouting holes (1-2), it passes through the grouting holes (1-3) to fill the internal spaces of the upper and lower dovetail-shaped butt joint grooves (1-1) and connect them into one.

7. The high-stability prefabricated house wall panel according to claim 6, characterized in that: The cross section of the grouting circulation holes (1-3) is arranged in a multi-tooth structure.

8. The high-stability prefabricated house wall panel according to claim 7, characterized in that: Its installation steps are as follows: First, according to the height and area of ​​the required installation space, a qualified plate body (1) is processed and produced; Next, according to the installation requirements, select the leftmost or rightmost panel (1) to be installed on the side wall, and use the triangular wedge-shaped pins at the bottom to tighten and position it; Then, the plate body (1) provided with dovetail-shaped docking blocks (2) and dovetail-shaped docking grooves (1-1) on both sides is docked with the already installed plate body (1), so that the dovetail-shaped docking blocks (2) are inserted into the dovetail-shaped docking grooves (1-1). During the insertion process, the movable top block (4) is squeezed in. When the clamping edge (4-1) moves to the clamping groove (1-4) position, it is inserted into the clamping groove (1-4) under the elastic force of the spring (6). At this time, the movable top blocks (4) on the front and rear sides are both set in contact with the front and rear inner inclined surfaces of the dovetail-shaped docking groove (1-1) under the elastic force of the spring (6); Then, the transverse fixing pin (7) is passed through the grouting hole (1-2) and inserted into the transverse fixing through-hole 1 (3-2) and the transverse fixing through-hole 2 (4-2) to transversely fix the dovetail-shaped docking block (2) and the dovetail-shaped docking groove (1-1); Next, a grouting hole (1-2) is reserved on the longitudinal side of the plate body (1), and the other grouting holes (1-2) are blocked by plugging. Then, concrete mortar is injected from the unblocked grouting hole (1-2) by using grouting equipment, and is filled through the transverse fixed perforation 1 (3-2), the transverse fixed perforation 2 (4-2) and the grouting flow hole (1-3), filling all the dovetail-shaped docking grooves (1-1) on one longitudinal side and all the gaps of the dovetail-shaped docking block (2). After the concrete mortar solidifies, the grouting holes (1-2) into which the concrete mortar is injected are blocked by plugging. This is repeated until the last plate body (1). The dovetail-shaped docking block (2) of the last plate body (1) is slightly tilted and inserted into the dovetail-shaped docking groove (1-1). Then, the plate body (1) is pushed so that it is flush with the other plate bodies (1), and a triangular wedge-shaped pin is inserted at the bottom. Finally, the joint gaps of all the panels (1), the gaps between the panels (1) and the wall on the left and right sides, and the gaps between the upper and lower side walls of all the panels (1) and the upper and lower walls are filled with grout. After solidification, the triangular wedge-shaped pins at the bottom of all the panels (1) are pulled out, and the gaps are filled with grout again, and all overflowing parts are scraped off.

9. The high-stability prefabricated house wall panel according to claim 8, characterized in that: When an error occurs in the docking of the plate body (1), two push rods are inserted into the front and rear grouting holes (1-2), and the push rods push the movable top block (4) toward the docking block body (3) until the clamping edge (4-1) exits the clamping groove (1-4), and the plate body (1) can be pulled to remove the plate body (1) and re-dock.

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