Plywood anchoring method and anchoring structure

Abstract

The embodiment of the present application provides a plywood anchoring method and anchoring structure, which relates to the technical field of plywood anchoring. The plywood anchoring method includes the following steps: S1 placing a polyurethane plate body above the plywood under the insulation box, aligning the polyurethane plate body with the embedded holes of the plywood on the insulation box, embedding and installing the anchor plate in the embedded holes, and fixing the anchor connecting plate to the surface of the plywood on the insulation box by rivets; S2 screwing the intermediate connector assembly into the assembly screw groove opened on the surface of the anchor plate for pre-positioning assembly. This solution avoids the displacement problem caused by single-point fixation by limiting the position of the multi-layer plate. This fixing method uses a through-hole design of the multi-layer plate to avoid cracking at the step in the stepped hole and fixation failure caused by different shrinkage coefficients of different materials.

Description

Technical Field

[0001] The present application relates to the technical field of plywood anchoring, and in particular to a plywood anchoring method and an anchoring structure. Background Art

[0002] In the field of cryogenic liquid storage and transportation equipment, the sealing and mechanical stability of the tank structure directly affect the system safety and energy efficiency. Traditional tank anchoring structures mostly use a single bolt to fasten through multiple layers of sheet material. During use, the multi-layer sheet material will cause high loads and cracks due to cold shrinkage and sloshing of liquid cargo, thereby causing fastening failure problems; the unstable multi-layer sheet material will lose the ability to stably and evenly transfer loads, thereby increasing the risk of cracking of the main shielding film. Summary of the Invention

[0003] The purpose of the present invention is to provide a plywood anchoring method and anchoring structure to solve the problem of mechanical stability failure caused by the uneven load distribution defect caused by the use of a single bolt penetrating multiple layers of plate materials in traditional storage tank anchoring structures in cryogenic liquid storage and transportation equipment under low-temperature shrinkage and dynamic sloshing of liquid cargo.

[0004] The plywood anchoring method according to an embodiment of the present application includes the following steps:

[0005] S1: Place the polyurethane plate on the lower plywood of the insulation box, align the polyurethane plate with the embedding holes of the upper plywood of the insulation box, fit the anchor plate into the embedding holes, and fix the anchor connection plate to the surface of the upper plywood of the insulation box with rivets;

[0006] S2: Screw the intermediate connector assembly into the assembly screw groove provided on the surface of the anchor plate for pre-positioning assembly;

[0007] S3: Position and lay the secondary corrugated plate on top of the plywood on the insulation box through the intermediate connector assembly. Weld the secondary corrugated plate to the anchor plate by lap welding to ensure that a seal is formed in the local area of ​​the anchor plate.

[0008] S4: Using the pre-installed intermediate connector assembly for positioning, the main plywood and the main layer corrugated board are laid on the secondary layer corrugated board in sequence to achieve positioning of the main plywood and the main layer corrugated board during installation;

[0009] S5: Adjust the top end of the intermediate connecting assembly so that its end is flush with the surface of the main layer corrugated plate to eliminate assembly stress.

[0010] On the other hand, the anchoring structure according to the embodiment of the present application includes a plywood on the insulation box and an anchoring plate, and the end of the anchoring plate is integrally provided with an anchoring connecting plate;

[0011] At the same time, a secondary layer of corrugated board is laid on the upper plywood of the insulation box, and a primary plywood and a primary layer of corrugated board are laid on the secondary layer of corrugated board in sequence;

[0012] Among them, the inner cavity of the anchor plate is screwed into and assembled with an intermediate connecting component, and the intermediate connecting component is used in conjunction with the anchor plate to position and assemble the plywood, secondary corrugated plate, main plywood and main corrugated plate on the insulation box; and the surfaces of the secondary corrugated plate, main plywood and main corrugated plate are provided with several assembly through holes for the intermediate connecting component to pass through.

[0013] According to some embodiments of the present application, the anchoring connecting plate is fixed to the surface of the plywood on the insulation box by rivets;

[0014] There are four anchoring plates which are symmetrically arranged with each other. The inner surface of each anchoring plate is provided with a corresponding assembly screw groove, and the assembly screw groove is a blind hole structure with an internal thread.

[0015] According to some embodiments of the present application, the bottom of the upper plywood of the insulation box is connected to a polyurethane plate body, and the lower plywood of the insulation box is assembled below the polyurethane plate body, wherein the surfaces of the polyurethane plate body and the upper plywood of the insulation box are both provided with embedding holes, and the anchor plate is embedded in the embedding hole between the upper plywood of the insulation box and the polyurethane plate body.

[0016] According to some embodiments of the present application, the intermediate connection assembly includes a screw positioning member 1, which is screwed into the assembly through holes in the secondary layer corrugated plate, the main plywood and the main layer corrugated plate, and its tail end is screwed into the assembly screw groove on the anchor plate, and its top protruding section is fused.

[0017] According to some embodiments of the present application, the intermediate connection assembly includes a screw positioning member 2, and the inner cavity of the screw positioning member 2 is provided with an internal thread groove, wherein the inner cavity of the internal thread groove is screwed into the inner screw member, and the end of the inner screw member is connected to the end screw.

[0018] According to some embodiments of the present application, an annular groove is provided on the outer ring of the end of the second screw positioning member, and a connecting sleeve is provided in the inner cavity of the annular groove.

[0019] According to some embodiments of the present application, the intermediate connection assembly includes a screw positioning member three, and a spring washer and a metal washer are sequentially provided at the bottom of the screw positioning member three.

[0020] According to some embodiments of the present application, the intermediate connection assembly includes a screw positioning member four, the end of which is provided with a plug-in column, and the bottom of the plug-in column is connected to a tightening rod, and the bottom of the tightening rod is fastened and inserted into the inner cavity of the end of the screw positioning member four.

[0021] According to some embodiments of the present application, an adjusting gasket 2 and an adjusting gasket 1 are respectively sleeved on the outer surface of the tightening rod, wherein the specification of the adjusting gasket 2 is smaller than that of the adjusting gasket 1.

[0022] The beneficial effects of the present application are as follows: the present solution places the polyurethane plate body above the lower plywood of the insulation box, and embeds the anchor plate between the upper plywood of the insulation box and the polyurethane plate body through the embedded holes, and uses rivets to fix the anchor connecting plate at the end of the anchor plate to the surface of the upper plywood of the insulation box to form a basic anchoring point; then the intermediate connector assembly is screwed into the assembly screw groove opened on the surface of the anchor plate to pre-position and assemble the secondary corrugated plate, the main plywood and the main corrugated plate; and under the positioning action of the intermediate connector assembly, the operator can lay the secondary corrugated plate, the main plywood and the main corrugated plate in sequence above the upper plywood of the insulation box, wherein the secondary corrugated plate and the anchor connecting plate are welded by lap welding to ensure that a seal is formed in the local area of ​​the anchor plate, and before assembling the secondary corrugated plate, the main plywood and the main corrugated plate, their surfaces are provided with assembly through holes adapted to the intermediate connecting assembly, and the inner wall of the assembly through hole is provided with screw threads; laying the main corrugated plate, the main plywood When assembling the main corrugated plate and the secondary corrugated plate, it is only necessary to insert the intermediate connecting component into the intermediate connecting component through the assembly through hole in a certain order, and at the same time, the upper part of the intermediate connecting component is engaged with the screw thread in the assembly through hole, and the multi-layer structure is positioned and locked by the uniform distribution of multiple intermediate connecting components; the top of the intermediate connecting component is adjusted to be flush with the surface of the main corrugated plate by fusing or fine-tuning mechanism, eliminating assembly stress and avoiding damage by protrusions, effectively solving the risk of tearing of the main plywood due to excessive openings, and finally achieving sealing, positioning accuracy and anchoring stability among the polyurethane plate body, the lower plywood of the insulation box, the upper plywood of the insulation box, the secondary corrugated plate, the main plywood and the main corrugated plate; and on the basis of the above-mentioned assembly method, the multi-layer plate is limited and fixed, which can avoid the displacement problem caused by single-point fixation. This fixing method uses a through-hole design for the multi-layer plate to avoid cracking at the step in the step hole and fixation failure caused by different shrinkage coefficients of different materials.

[0023] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0025] Figure 1This is a schematic diagram of the overall structure assembly according to the first embodiment of the anchoring structure of the present application;

[0026] Figure 2 This is a schematic diagram of the overall structure of the first embodiment of the anchoring structure of the present application;

[0027] Figure 3 is a bottom view schematic diagram of the anchor plate structure according to the first embodiment of the present application;

[0028] Figure 4 This is a schematic diagram of the overall structure assembly according to the second embodiment of the anchoring structure of the present application;

[0029] Figure 5 is a schematic front and cross-sectional view of a second structure of a screw positioning member according to a second embodiment of the present application;

[0030] Figure 6 is a schematic front view of the second structure of the screw positioning member according to the second embodiment of the present application;

[0031] Figure 7 This is a schematic front cross-sectional view of a second partial structure of a screw positioning member according to a second embodiment of the present application;

[0032] Figure 8 is a schematic top view of the end screw structure according to the second embodiment of the present application;

[0033] Figure 9 is a schematic top view of the second structure of the screw positioning member according to the second embodiment of the present application;

[0034] Figure 10 This is a schematic diagram of the overall structural assembly of the third embodiment of the anchoring structure of the present application;

[0035] Figure 11 is a schematic front and cross-sectional view of a screw positioning member 3 and an anchor plate structure according to a third embodiment of the present application;

[0036] Figure 12 This is a schematic diagram of the overall structural assembly of the fourth embodiment of the anchoring structure of the present application;

[0037] Figure 13 1 is a schematic diagram of the assembly of the screw positioning member 4 and the anchor plate structure according to the fourth embodiment of the present application;

[0038] Figure 14 This is a schematic diagram of the structural decomposition of the plug-in column, the tightening rod, the adjustment gasket 1 and the adjustment gasket 2 according to the fourth embodiment of the present application.

[0039] icon:

[0040] 1. Polyurethane plate; 2. Plywood under the insulation box; 3. Plywood on the upper insulation box; 4. Secondary corrugated plate; 5. Main plywood; 6. Main corrugated plate; 7. Anchor plate; 701. Anchor connecting plate; 702. Assembly screw groove; 100. Screw positioning piece 1; 200. Screw positioning piece 2; 201. Internal thread groove; 202. Annular groove; 210. Internal screw piece; 220. End screw; 221. Hexagonal screw groove; 230. Connecting sleeve; 231. Drain hole; 232. Injection hole; 300. Screw positioning piece 3; 310. Spring washer; 320. Metal washer; 400. Screw positioning piece 4; 410. Connecting column; 420. Tightening rod; 430. Adjusting gasket 1; 440. Adjusting gasket 2. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0042] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0043] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0044] 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, it does not need to be further defined or explained in subsequent drawings.

[0045] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on this application.

[0046] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0047] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be interpreted broadly. For example, they may refer to fixed connection, detachable connection, or integration; they may refer to direct connection or indirect connection through an intermediate medium; they may refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0048] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0049] The following describes the plywood anchoring method and anchoring structure according to embodiments of the present application with reference to the accompanying drawings.

[0050] like Figures 1-14 The plywood anchoring method according to an embodiment of the present application includes the following steps:

[0051] S1: Place the polyurethane plate 1 above the lower plywood 2 of the insulation box, align the polyurethane plate 1 with the holes in the upper plywood 3 of the insulation box, fit the anchor plate 7 into the holes, and fix the anchor connection plate 701 to the surface of the upper plywood 3 of the insulation box with rivets;

[0052] S2: Screw the intermediate connector assembly into the assembly screw groove 702 provided on the surface of the anchor plate 7 for pre-positioning and assembly;

[0053] S3: Position and lay the secondary corrugated plate 4 above the plywood 3 on the insulation box through the intermediate connector assembly. Weld the secondary corrugated plate 4 to the anchoring connecting plate 701 by lap welding to ensure that a seal is formed in a local area of ​​the anchoring plate 7;

[0054] S4: Using the pre-installed intermediate connector assembly for positioning, the main plywood 5 and the main layer corrugated board 6 are laid on the secondary layer corrugated board 4 in sequence to achieve positioning of the main plywood 5 and the main layer corrugated board 6 during installation;

[0055] S5: Adjust the top end of the intermediate connecting assembly so that its end is flush with the surface of the main layer corrugated plate 6 to eliminate assembly stress;

[0056] Through the above steps, during actual assembly, the synergistic effect of the anchor plate 7 and the intermediate connecting component is utilized to achieve the sealed assembly of the polyurethane plate body 1, the lower plywood 2 of the insulation box, the upper plywood 3 of the insulation box, the secondary corrugated plate 4, the main plywood 5 and the main corrugated plate 6, while ensuring the precise positioning and stable connection of each layer structure at the anchor point.

[0057] like Figures 1-14 As shown, the anchoring structure according to the embodiment of the present application includes: an upper plywood 3 of the insulation box and an anchoring plate 7, wherein the end of the anchoring plate 7 is integrally provided with an anchoring connecting plate 701;

[0058] At the same time, a secondary layer of corrugated board 4 is laid on top of the plywood 3 on the insulation box. The secondary layer of corrugated board 4 is welded to the anchoring connecting plate 701 by lap welding to ensure that a seal is formed in the local area of ​​the anchoring plate 7. The primary plywood 5 and the primary layer of corrugated board 6 are laid on top of the secondary layer of corrugated board 4 in sequence.

[0059] Among them, the inner cavity of the anchor plate 7 is screwed into and assembled with an intermediate connecting component, and the intermediate connecting component cooperates with the anchor plate 7 to position and assemble the plywood 3, the secondary corrugated plate 4, the main plywood 5 and the main corrugated plate 6 on the insulation box; and the surfaces of the secondary corrugated plate 4, the main plywood 5 and the main corrugated plate 6 are provided with a number of assembly through holes for the intermediate connecting component to pass through.

[0060] In actual use, the bottom of the intermediate connecting component passes through the assembly through hole and is screwed into the inner cavity of the assembly screw groove 702 on the anchor plate 7, while the upper part of the intermediate connecting component is inserted into the assembly through hole. Since there are multiple intermediate connecting components, multiple intermediate connecting components can be used to position and assemble the plywood 3, the secondary corrugated board 4, the main plywood 5 and the main corrugated board 6 on the insulation box to avoid displacement during assembly.

[0061] Specifically, the inner cavity of the assembly through hole is provided with screw threads that are compatible with the intermediate connecting component. When the intermediate connecting component is screwed into the assembly through hole and engages with the screw threads, it can help increase the stability of the connection between the two.

[0062] Specifically, the bottom of the upper plywood 3 of the insulation box is connected to the polyurethane plate 1, and the lower plywood 2 of the insulation box is assembled below the polyurethane plate 1, and the lower plywood 2 of the insulation box is installed on the surface of the insulation box;

[0063] The surfaces of the polyurethane plate body 1 and the plywood 3 on the insulation box are both provided with embedding holes, and the anchoring plate 7 is embedded in the embedding hole between the plywood 3 on the insulation box and the polyurethane plate body 1 .

[0064] The anchoring connecting plate 701 is fixed to the surface of the plywood 3 on the insulation box by rivets, locking the plywood 3 on the insulation box and the anchoring plate 7;

[0065] like Figure 2 and Figure 3 As shown, there are four anchor plates 7 and they are symmetrically arranged. The inner surface of each anchor plate 7 is provided with a corresponding assembly screw groove 702. The assembly screw groove 702 is a blind hole structure with an internal thread. The bottom of the intermediate connection component is screwed into the inner cavity of the assembly screw groove 702 to connect the intermediate connection component to the anchor plate 7.

[0066] Specifically, since the anchor plate 7 is used in conjunction with the intermediate connecting assembly, four intermediate connecting assemblies are also provided. In the construction design of this solution, the plurality of intermediate connecting assemblies cooperate with the anchor plate 7 to fix the upper plywood 3, the secondary corrugated plate 4, the main plywood 5 and the main corrugated plate 6 of the insulation box while also playing a positioning role.

[0067] The interlocking installation structure of the anchor plate 7 and the polyurethane plate body 1, combined with the welding of the secondary corrugated plate 4, blocks the direct contact between the metal anchor and the non-metallic material interface, thereby reducing the cold bridge effect.

[0068] The functions ultimately achieved by the multiple intermediate connection components in conjunction with the anchor plate 7 are: during the assembly process, the sealing of the main layer corrugated plate 6 and the secondary layer corrugated plate 4 is maintained during assembly, and the splicing and installation problems between the polyurethane plate body 1, the lower plywood 2 of the insulation box, the upper plywood 3 of the insulation box, the secondary layer corrugated plate 4, the main plywood 5 and the main layer corrugated plate 6 during construction are solved, and the anchoring problem of the anchoring points between the upper plywood 3 of the insulation box, the secondary layer corrugated plate 4, the main plywood 5 and the main layer corrugated plate 6 is solved. At the same time, the problem that the existing main plywood 5 is affected by its own material and is torn at the opening during assembly due to the excessive size of the opening and the tightening pressure of the assembly screw is solved.

[0069] The above content effectively solves the displacement problem caused by single-point fixation by limiting and fixing the multi-layer sheet materials. This fixing method uses a through-hole design for the multi-layer sheet materials to avoid cracking at the steps in the stepped holes and fixation failure caused by different shrinkage coefficients of different materials. However, in the actual assembly and use process, there are still certain problems in using multiple sets of intermediate connection components to limit and fix the multi-layer sheet materials. For example, when using multiple intermediate connection components, the connection ends often protrude from the surface of the main layer corrugated plate, and because the length of the intermediate connection components is fixed, it is impossible to adapt to assembly errors or changes in the gap between layers. Therefore, it is necessary to eliminate the protruding problem of the connection ends and make them smooth.

[0070] refer to Figures 1 to 14 As shown, in order to solve the problem of protrusion at the connection end of the intermediate connection component after assembly and connection, this solution adopts the following technical content to solve the problem.

[0071] like Figure 1-Figure 3 As shown, it is a first embodiment of the intermediate connection component, which mainly solves the problem of the protrusion of the end of the screw positioning member 100 in the intermediate connection component after connection. It is the first implementation method to solve the problem of the protrusion of the connection end of the intermediate connection component. The intermediate connection component is a screw positioning member 100, which is screwed into the assembly through holes in the secondary corrugated plate 4, the main plywood 5 and the main layer corrugated plate 6, and its tail end is screwed into the assembly screw groove 702 on the anchor plate 7. The top protruding section is fused, so that the screw positioning member 100 cooperates with the anchor plate 7 to complete the assembly between the polyurethane plate 1, the lower plywood 2 of the insulation box, the upper plywood 3 of the insulation box, the secondary corrugated plate 4, the main plywood 5 and the main layer corrugated plate 6; its end is flush with the end of the main layer corrugated plate 6;

[0072] When in use, after the end of the screw positioning piece 100 is melted and kept flush with the end of the main layer corrugated plate 6, the screw positioning piece 100 and the end of the main layer corrugated plate 6 are welded to ensure their sealing.

[0073] Specifically, the equipment used for the fusing process in this solution is one of an electric welder, a gas welder, an acetylene cutter, a laser cutter, a plasma cutter or a fuse pliers, which is selected according to the actual working environment;

[0074] Furthermore, after the end of the screw positioning member 100 is fused, an angle grinder can be used to grind the fused surface of the screw positioning member 100 until it is flush.

[0075] The end of the screw positioning piece 100 of the intermediate connection assembly is fused and flush with the surface of the main layer corrugated plate 6, further reducing the metal exposure area, inhibiting low-temperature icing and stress distortion, and improving reliability under low-temperature conditions.

[0076] This solution utilizes a welded structure between the secondary corrugated sheet 4 and the primary corrugated sheet 6, through the coordination of the anchor plate 7 and the screw positioning member 100 of the intermediate connecting assembly. This reduces stress concentration caused by differences in the thermal expansion coefficients of the materials in low-temperature environments. The intermediate connecting assembly, through thread engagement and fusing, ensures that the end portion is flush with the surface of the primary corrugated sheet 6, avoiding localized stress concentration caused by protrusions and thus reducing the risk of microcracks and leakage at the sealing layer interface.

[0077] like Figure 4-Figure 9 As shown, it is the second embodiment of the intermediate connection component, which mainly solves the problem of the protrusion of the end of the screw positioning component 200 in the intermediate connection component after connection. It is the second implementation method to solve the problem of the protrusion of the connection end of the intermediate connection component. The intermediate connection component is the screw positioning component 200, and the inner cavity of the screw positioning component 200 is provided with an internal thread groove 201, wherein the inner cavity of the internal thread groove 201 is screwed into the inner screw component 210, and the end of the internal screw component 210 is connected with the end screw 220.

[0078] When in use, the screw positioning member 200 is screwed into the assembly holes in the secondary corrugated plate 4, the main plywood 5 and the main layer corrugated plate 6, and its tail end is screwed into the assembly screw groove 702 on the anchor plate 7, while the upper end of the screw positioning member 200 is in the assembly hole. Then continue to twist the inner screw member 210 so that the inner screw member 210 is screwed into the inner thread groove 201 and keep the end screw 220 flush with the end of the main layer corrugated plate 6.

[0079] The outer ring of the end of the second screw positioning member 200 is provided with an annular groove 202, and the inner cavity of the annular groove 202 is provided with a connecting sleeve 230. The end of the connecting sleeve 230 is connected to the bottom of the end screw 220. The connecting sleeve 230 can help increase the strength between the end screw 220, the inner screw member 210 and the second screw positioning member 200.

[0080] In this solution, the inner screw 210, the end screw 220 and the screw positioning member 200 are coordinated to make the end screw 220 flush with the end of the main layer corrugated plate 6, and then welding is performed on the outer ring of the end where the end screw 220 and the main layer corrugated plate 6 are connected to ensure its sealing performance.

[0081] Specifically, in order to facilitate fine adjustment of the end screw 220, a hexagonal screw groove 221 is opened at the end of the end screw 220. Therefore, during assembly, the end screw 220 is twisted by inserting an external hexagonal wrench into the hexagonal screw groove 221;

[0082] As a further optimization of this solution, an injection hole 232 is provided at the end of the end screw 220, and the injection hole 232 and the inner cavity of the connecting sleeve 230 are connected to each other, wherein a drainage hole 231 is provided on the surface of the connecting sleeve 230. Therefore, after the assembly between the end screw 220 and the screw positioning member 200 is completed, glue or expansion agent can be injected into the assembly through hole through the injection hole 232, the connecting sleeve 230 and the drainage hole 231 to fill the gap in the assembly through hole, thereby increasing the connection strength of the contact surface between the screw positioning member 200 and the secondary corrugated plate 4, the main plywood 5 and the main layer corrugated plate 6.

[0083] This embodiment is an alternative to the first embodiment of the intermediate connecting assembly, and can also solve the problem of the protrusion of the end of the intermediate connecting assembly after connection.

[0084] like Figure 10-11 As shown, it is a third embodiment of the intermediate connection assembly, which mainly solves the problem of the end of the screw positioning member 300 in the intermediate connection assembly protruding after connection. It is a third implementation method for solving the problem of the connection end protruding of the intermediate connection assembly. The intermediate connection assembly is a screw positioning member 300, and the bottom of the screw positioning member 300 is sequentially provided with a spring washer 310 and a metal washer 320;

[0085] During actual assembly, according to the assembly through holes in the secondary corrugated plate 4, the main plywood 5 and the main layer corrugated plate 6 and the vertical length of the assembly screw groove 702 on the anchor plate 7, multiple spring washers 310 and metal washers 320 are pre-inserted into the assembly screw groove 702, and then the screw positioning member 300 is screwed in so that its end is kept flush with the end of the main layer corrugated plate 6.

[0086] When in use, the spring gasket 310 and the metal gasket 320 cooperate with the screw positioning piece 300 to keep the end of the screw positioning piece 300 flush with the end of the main layer corrugated plate 6, and then weld the outer circle of the end of the connection between the screw positioning piece 300 and the main layer corrugated plate 6 to ensure its sealing performance.

[0087] In this solution, the openings of the main plywood 5 are connected by multiple intermediate components, such as the second screw positioning member 200 and the third screw positioning member 300, to evenly distribute the anchoring force, disperse the bolt pre-tightening pressure, and avoid fiber tearing caused by single-point overload.

[0088] This embodiment is an alternative to the first and second embodiments of the intermediate connecting assembly, and can also solve the problem of the protrusion of the end of the intermediate connecting assembly after connection.

[0089] like Figure 12-14As shown, it is the fourth embodiment of the intermediate connection component, which mainly solves the problem of the protrusion of the end of the screw positioning member 400 in the intermediate connection component after connection. It is the fourth implementation method to solve the problem of the protrusion of the connection end of the intermediate connection component. The intermediate connection component is a screw positioning member 400, and the end of the screw positioning member 400 is provided with a plug-in column 410, and the bottom of the plug-in column 410 is connected to a tightening rod 420, and the bottom of the tightening rod 420 is fastened and inserted into the inner cavity of the end of the screw positioning member 400.

[0090] The outer surface of the tightening rod 420 is respectively sleeved with an adjusting washer 2 440 and an adjusting washer 1 430 , wherein the specification of the adjusting washer 2 440 is smaller than that of the adjusting washer 1 430 ;

[0091] During actual assembly, the screw positioning member 400 is screwed into the assembly screw groove 702 in the anchor plate 7, and then, according to the assembly through holes in the secondary corrugated plate 4, the main plywood 5 and the main layer corrugated plate 6 and the vertical length of the assembly screw groove 702 on the anchor plate 7, the adjustment gasket 1 430 and the adjustment gasket 2 440 are selected and placed on the end of the screw positioning member 400, and then the tightening rod 420 is inserted into the screw positioning member 400 so that the plug-in column 410 remains flush with the end of the main layer corrugated plate 6.

[0092] During use, after ensuring that the plug-in column 410 is flush with the end of the main layer corrugated plate 6, welding is performed on the outer circle of the connection end of the plug-in column 410 and the main layer corrugated plate 6 to ensure its sealing performance.

[0093] Specifically, the ends of the screw positioning member four 400, the adjusting gasket one 430 and the adjusting gasket two 440 are provided with limiting grooves, and the bottoms of the adjusting gasket one 430 and the adjusting gasket two 440 are connected to limiting blocks. When the adjusting gasket one 430 and the adjusting gasket two 440 are stacked on the screw positioning member four 400, the limiting grooves and the limiting blocks cooperate to avoid the adjusting gasket one 430 and the adjusting gasket two 440 from being offset when stacked.

[0094] The screw locators 400 of the anchor plate 7 and the intermediate body connecting assembly engage with the threads of the mounting holes through the mounting grooves 702, forming a multi-point positioning mechanism. The mounting holes of the secondary corrugated plate 4 and primary corrugated plate 6 are strictly aligned. Four symmetrical anchor plates 7 are provided, working in conjunction with the intermediate body connecting assembly's adjustment washers 1 430 and 2 440. This effectively eliminates cumulative assembly errors, prevents interlayer misalignment, and enhances structural stability.

[0095] This embodiment is an alternative to the first embodiment, the second embodiment and the third embodiment of the intermediate connection assembly, and can also solve the problem of the protrusion of the end of the intermediate connection assembly after connection.

[0096] In the present invention, any one of the above four embodiments can solve the problem of a protrusion at the end of the intermediate connecting component after connection.

[0097] The present invention uses an innovative design of the intermediate connection component, combined with technologies such as fusing treatment, thread engagement adjustment and multi-stage gasket compensation, to reasonably adjust its length so that the connection end is flush with the surface of the main layer corrugated plate 6, effectively solving problems such as assembly errors and changes in interlayer gaps caused by end protrusions, and avoiding structural damage and functional failure caused by protrusions.

[0098] Finally, under the action of the intermediate connection component, this solution can cooperate with the anchor plate 7 to position and lock the polyurethane plate 1, the lower plywood 2 of the insulation box, the upper plywood 3 of the insulation box, the secondary corrugated plate 4, the main plywood 5 and the main layer corrugated plate 6. At the same time, the intermediate connection component can adjust its own length so that its end is always kept at the same horizontal plane with the end of the main layer corrugated plate 6 during assembly, avoiding damage caused by protrusions after assembly of the intermediate connection component.

[0099] Specifically, the working principle of the anchoring structure is as follows: first, the polyurethane plate body 1 is placed above the lower plywood 2 of the insulation box, and the anchoring plate 7 is embedded between the upper plywood 3 of the insulation box and the polyurethane plate body 1 through the embedding hole, and the anchoring connecting plate 701 at the end of the anchoring plate 7 is fixed to the surface of the upper plywood 3 of the insulation box by rivets to form a basic anchoring point; then the intermediate connector assembly is screwed into the assembly screw groove 702 opened on the surface of the anchoring plate 7, and the secondary corrugated plate 4, the main plywood 5 and the main corrugated plate 6 are pre-stitched. Positioning and assembly; Under the positioning effect of the intermediate connector assembly, the operator can sequentially lay the secondary corrugated plate 4, the main plywood 5 and the main corrugated plate 6 on the upper plywood 3 of the insulation box, wherein the secondary corrugated plate 4 is welded to the anchoring connecting plate 701 by lap welding to ensure that a seal is formed in the local area of ​​the anchoring plate 7. Before assembling the secondary corrugated plate 4, the main plywood 5 and the main corrugated plate 6, their surfaces are provided with assembly through holes adapted to the intermediate connector assembly, and the inner walls of the assembly through holes are provided with screw threads; When laying the main layer corrugated board 6, the main plywood 5 and the secondary layer corrugated board 4, it is only necessary to insert them into the intermediate connection component through the assembly through-hole in a certain order, and at the same time, the upper part of the intermediate connection component is engaged with the screw thread in the assembly through-hole, and the multi-layer structure is positioned and locked by the uniform distribution of multiple intermediate connection components; the top of the intermediate connection component is adjusted to be flush with the surface of the main layer corrugated board 6 through a fusing process or a fine-tuning mechanism, eliminating assembly stress and avoiding damage by protrusions, effectively solving the risk of tearing of the main plywood 5 caused by excessively large openings, and finally achieving sealing, positioning accuracy and anchoring stability among the polyurethane board body 1, the lower plywood 2 of the insulation box, the upper plywood 3 of the insulation box, the secondary layer corrugated board 4, the main plywood 5 and the main layer corrugated board 6; and on the basis of adopting the above-mentioned assembly method, the multi-layer board is limited and fixed, which can avoid the displacement problem caused by single-point fixation. This fixing method uses a multi-layer board through-hole design to avoid cracking at the step in the step hole and fixation failure caused by different shrinkage coefficients of different materials.

[0100] The above are merely examples of the present application and are not intended to limit the scope of protection of the present application. For those skilled in the art, the present application may be subject to various modifications and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined or explained in subsequent figures.

[0101] The above are only specific embodiments of the present application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A plywood anchoring method, characterized in that: The following steps are involved: S1: placing the polyurethane plate (1) above the lower plywood (2) of the insulation box, aligning the polyurethane plate (1) with the embedded holes of the upper plywood (3) of the insulation box, fitting the anchor plate (7) into the embedded holes, and fixing the anchor connection plate (701) to the surface of the upper plywood (3) of the insulation box by rivets; S2: screwing the intermediate connector assembly into the assembly screw groove (702) provided on the surface of the anchor plate (7) for pre-positioning assembly; S3: Positioning and laying a secondary layer of corrugated plate (4) above the plywood (3) on the insulation box through the intermediate connector assembly, and welding the secondary layer of corrugated plate (4) to the anchoring connecting plate (701) by lap welding to ensure that a seal is formed in a local area of ​​the anchoring plate (7); S4: using the pre-installed intermediate connector assembly for positioning, laying the main plywood (5) and the main layer corrugated board (6) on the secondary layer corrugated board (4) in sequence, so as to achieve positioning of the main plywood (5) and the main layer corrugated board (6) during installation; S5: The top end of the intermediate connecting assembly is adjusted by fusing or fine-tuning the mechanism so that the end is flush with the surface of the main layer corrugated plate (6) to eliminate assembly stress.

2. An anchoring structure comprising the plywood anchoring method according to claim 1, characterized in that: It comprises an upper plywood (3) of the insulation box and an anchoring plate (7), wherein the end of the anchoring plate (7) is integrally formed with an anchoring connecting plate (701); At the same time, a secondary layer of corrugated board (4) is laid on the upper plywood (3) of the insulation box, and a primary plywood (5) and a primary layer of corrugated board (6) are laid in sequence on the upper plywood (3) of the insulation box. The inner cavity of the anchor plate (7) is screwed with an intermediate connecting assembly, and the intermediate connecting assembly cooperates with the anchor plate (7) to position and assemble the plywood (3), the secondary corrugated plate (4), the main plywood (5) and the main corrugated plate (6) on the insulation box; and the surfaces of the secondary corrugated plate (4), the main plywood (5) and the main corrugated plate (6) are provided with a plurality of assembly through holes for the intermediate connecting assembly to penetrate.

3. The anchoring structure according to claim 2, characterized in that: The anchoring connecting plate (701) is fixed to the surface of the plywood (3) on the insulation box by means of rivets; There are four anchoring plates (7) arranged symmetrically with each other, and the inner surface of each anchoring plate (7) is provided with a corresponding assembly screw groove (702), and the assembly screw groove (702) is a blind hole structure with an internal thread.

4. The anchoring structure according to claim 3, characterized in that: The bottom of the upper plywood (3) of the insulation box is connected to a polyurethane plate (1), and the lower plywood (2) of the insulation box is assembled below the polyurethane plate (1), wherein the surfaces of the polyurethane plate (1) and the upper plywood (3) of the insulation box are both provided with embedded holes, and the anchor plate (7) is embedded in the embedded hole between the upper plywood (3) of the insulation box and the polyurethane plate (1).

5. The anchoring structure according to claim 4, characterized in that: The intermediate connection assembly includes a screw positioning member (100), which is screwed into the assembly through holes in the secondary corrugated plate (4), the main plywood (5) and the main corrugated plate (6), and its tail end is screwed into the assembly screw groove (702) on the anchor plate (7), and its top protruding section is fused.

6. The anchoring structure according to claim 4, characterized in that: The intermediate connecting assembly includes a second screw positioning member (200), and the inner cavity of the second screw positioning member (200) is provided with an internal thread groove (201), wherein the inner cavity of the internal thread groove (201) is screwed into the inner screw member (210), and the end of the inner screw member (210) is connected to the end screw (220).

7. The anchoring structure according to claim 6, characterized in that: An annular groove (202) is provided on the outer ring of the end of the second screw positioning member (200), and a connecting sleeve (230) is provided in the inner cavity of the annular groove (202).

8. The anchoring structure according to claim 4, characterized in that: The intermediate connecting assembly comprises a screw positioning member three (300), and a spring washer (310) and a metal washer (320) are sequentially arranged at the bottom of the screw positioning member three (300).

9. The anchoring structure according to claim 4, characterized in that: The intermediate connection assembly includes a screw positioning member four (400), the end of the screw positioning member four (400) is provided with a plug-in column (410), and the bottom of the plug-in column (410) is connected to a tightening rod (420), and the bottom of the tightening rod (420) is fastened and inserted into the inner cavity of the end of the screw positioning member four (400).

10. The anchoring structure according to claim 9, characterized in that: The outer surface of the tightening rod (420) is respectively sleeved with an adjusting gasket 2 (440) and an adjusting gasket 1 (430), wherein the specification of the adjusting gasket 2 (440) is smaller than that of the adjusting gasket 1 (430).

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