Reinforced plywood anchoring structure and method

Abstract

The present application relates to a kind of reinforced plywood anchoring structure and method, the reinforced plywood anchoring structure includes insulating box plywood, anchor plate with blind hole is fixed on insulating box plywood by rivet, secondary layer corrugated plate is sealed with anchor plate with blind hole Welding forms secondary shielding layer, main plywood is installed on secondary shielding layer, and circular opening is set on it, stud passes through the opening on main plywood, and is threadedly connected with anchor plate with blind hole, the present application is set in the opening inside main plywood by inner sleeve one and inner sleeve two Composite inner sleeve assembly is formed, adopts split structure design and is fixed in the inner wall of opening by bonding, contact with the stud passing in it, the structure can effectively enhance the local carrying capacity of the opening area of main plywood, prevent the deformation of opening edge or material fatigue damage caused by external force, to significantly improve the stability and service life of overall anchoring structure.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of anchoring technology for low-temperature liquid cargo storage equipment, in particular to a reinforced plywood anchoring structure and method. BACKGROUND

[0002] In the existing plywood anchoring structure, a stud is usually used to pass through the opening on the main plywood and is threadedly connected with the anchor (such as a nut or a pre-embedded part) arranged below, so as to realize the fixation and support of the upper structural member. However, since the plywood is a kind of multi-layer composite wood material, the interlayer bonding strength is limited, and lacks the uniformity and ductility possessed by metal materials. When subjected to local concentrated load, stress concentration phenomenon is easily generated at the opening position. Especially near the contact area between the stud and the plywood, due to the sudden change of the structure transmission path and the reduction of the effective bearing area, the non-uniformity of the local stress distribution is further aggravated.

[0003] In addition, during the operation of the equipment, if the structure is subjected to repeated external load (such as vibration, impact, etc.) for a long time, the stress cycle accumulation effect at the opening edge will be further aggravated, causing micro-cracks in the plywood and gradually expanding, and finally leading to structural failure. Especially in the environment with high temperature and humidity or large temperature difference, the plywood may also generate internal residual stress due to moisture absorption and expansion or drying shrinkage, which will also accelerate the deformation and damage of the opening area.

[0004] More seriously, once the initial deformation or micro-crack occurs around the opening, not only the stud connection will be loose, reducing the stability of the overall structure, but also the load transmission path may be deviated, further causing a chain effect on the adjacent structural components, which has certain safety hazards. Therefore, how to effectively improve the structural strength of the opening position in the plywood anchoring structure and prevent early failure caused by stress concentration has become a problem to be solved in the current field. SUMMARY

[0005] The present application aims to provide a reinforced plywood anchoring structure and method to solve the problems raised in the background.

[0006] To achieve the above-mentioned purpose, on the one hand, the present application provides a reinforced plywood anchoring structure, which comprises an insulating box plywood and an anchor plate with a blind hole. The anchor plate with a blind hole comprises a planar part and a blind hole part, and the inner side of the blind hole part is provided with a thread. The anchor plate with a blind hole is fixed on the insulating box plywood by a rivet. A secondary corrugated plate is sealingly welded with the anchor plate with a blind hole to form a secondary shielding layer. A main plywood is installed on the secondary shielding layer and an anchor hole is formed on the main plywood. A stud passes through the anchor hole of the main plywood and is threadedly connected with the anchor plate with a blind hole. A deformation prevention mechanism is installed in the anchor hole.

[0007] As preferred, the anti-deformation mechanism comprises a composite inner sleeve assembly, which is nested inside the opening and in contact with the stud, a nut and a gasket, which are located on the stud in the opening, and a top cap that is threadedly connected to the top end of the stud and welded to the main layer corrugated plate to form a main shielding layer.

[0008] As preferred, the composite inner sleeve assembly comprises an inner sleeve one and an inner sleeve two, which are designed in a split structure and fixedly connected to the inner wall of the opening by bonding, and are in contact with the stud passing therethrough to cooperatively realize the local reinforcement of the opening area of the main plywood.

[0009] As preferred, the lower side of the inner sleeve one is provided with a plurality of buckling blocks, and the upper side of the inner sleeve two is provided with a plurality of buckling grooves, the buckling blocks and the buckling grooves are bucklingly matched, and the inner sleeve one and the inner sleeve two are both made of composite material.

[0010] As preferred, the anti-deformation mechanism comprises a metal sleeve, which is inserted into and fixedly connected with the main plywood, the metal sleeve is internally provided with an internal thread, which is matched with the stud passing therethrough and forms a threaded connection.

[0011] As preferred, the outer surface of the metal sleeve is annularly provided with a plurality of protrusions, which are used to enhance the fixed connection strength between the metal sleeve and the main plywood.

[0012] As preferred, the anti-deformation mechanism comprises a steel plate stamping part, which is installed on the upper end of the opening, a bolt is threadedly connected with an anchor plate with a blind hole, and the bolt head at the end of the bolt is in contact with and seals the opening with the steel plate stamping part.

[0013] As preferred, the bolt head and the steel plate stamping part are fixedly connected in a full welding manner.

[0014] As preferred, the anti-deformation mechanism comprises a round corner structure, which is provided at the edge of the anchor hole on the steel main plywood to reduce stress concentration and improve the structural strength of the opening area.

[0015] As preferred, in another aspect, the application further provides a reinforced plywood anchoring method, which comprises the reinforced plywood anchoring structure of any one of the above-mentioned embodiments, and the operation steps are as follows:

[0016] S1. The anchor plate with a blind hole is fixed to the plywood of the insulation box by a rivet;

[0017] S2. The secondary layer corrugated plate is sealingly welded to the anchor plate with a blind hole to form a secondary shielding layer on the plywood of the insulation box;

[0018] S3. The main plywood is installed on the formed secondary shielding layer, and a circular anchor hole is formed thereon;

[0019] S4. Anchoring the anti-deformation mechanism in the anchoring hole.

[0020] Compared with the prior art, the present application has the following advantages:

[0021] 1. In the reinforced plywood anchoring structure and method, a composite sleeve assembly composed of inner sleeve one and inner sleeve two is arranged inside the opening of the main plywood, which is designed in a split structure and fixed to the inner wall of the opening by bonding, and contacts and cooperates with the stud passing through it. This structure can effectively enhance the local bearing capacity of the opening area of the main plywood, prevent deformation or material fatigue damage of the opening edge caused by external force, and significantly improve the stability and service life of the overall anchoring structure.

[0022] 2. In the reinforced plywood anchoring structure and method, a metal sleeve with internal threads is arranged at the opening position and inserted and fixed inside the main plywood, so that the stud realizes threaded connection with the anchoring plate with a blind hole through the metal sleeve. The metal sleeve not only improves the connection strength and centring between the stud and the main plywood, but also enhances the wear resistance of the opening area, and is particularly suitable for working conditions that require frequent maintenance or bear large loads.

[0023] 3. In the reinforced plywood anchoring structure and method, a steel plate stamping part is arranged at the upper end of the opening and connected with the anchoring plate with a blind hole through a bolt, and the bolt head and the steel plate stamping part are fixed by full welding, realizing reliable sealing of the opening position. This structure not only enhances the protection performance such as dustproof and waterproof of the anchoring structure, but also improves the overall stiffness and sealing stability of the connection position.

[0024] 4. In the reinforced plywood anchoring structure and method, the right-angle transition structure at the edge of the opening is changed to a round corner structure. This design helps to reduce stress concentration effect, improve material crack resistance, reduce structural fatigue damage caused by repeated external force loading, thereby effectively prolonging the overall service life and reliability of the plywood anchoring structure. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a schematic diagram of the overall structure of the present application;

[0026] Figure 2 is a schematic diagram of the composite sleeve assembly structure of the present application;

[0027] Figure 3 is a schematic diagram of the installation of the metal sleeve structure of the present application;

[0028] Figure 4 is a schematic diagram of the metal sleeve structure of the present application;

[0029] Figure 5 is a schematic diagram of the metal sleeve structure of the present application;

[0030] Figure 6 Fig. 1 is a schematic view of a steel plate stamping of the present application;

[0031] Figure 7 Fig. 2 is a schematic view of a round corner structure of the present application.

[0032] The meanings of the respective reference numerals in the drawings are as follows:

[0033] 1, insulating box plywood; 2, main plywood; 3, anchor plate with blind hole; 31, flat part; 32, blind hole part; 4, secondary layer corrugated plate; 5, stud; 6, main layer corrugated plate; 7, nut; 8, gasket; 9, top hat; 10, inner sleeve one; 11, inner sleeve two; 12, buckle block; 13, buckle groove; 14, metal sleeve; 15, protrusion; 16, internal thread; 17, steel plate stamping; 18, bolt; 19, bolt head; 20, anchor hole; 21, round corner structure. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be apparently and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0035] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0036] Please refer to Figure 1 and Figure 2 shown, the present embodiment provides a reinforced plywood anchor structure for improving the connection strength and structural stability of the opening area of the main plywood 2. The structure comprises an insulating box plywood 1, and an anchor plate with blind hole 3 is fixedly arranged on the insulating box plywood 1, the anchor plate with blind hole 3 comprises a flat part 31 and a blind hole part 32, the inner side of the blind hole part 32 is provided with a thread, the flat part 31 and the blind hole part 32 can be connected by welding, and the anchor plate with blind hole 3 is firmly connected with the insulating box plywood 1 by a rivet, specifically, the flat part 31 is firmly connected with the insulating box plywood 1 by a rivet.

[0037] The secondary corrugated plate 4 is arranged above the anchoring plate 3 with blind holes, and is fixedly connected with the flat part 31 through seal welding, so as to form a secondary shielding layer on the insulating box plywood 1, thereby effectively protecting the internal structure.

[0038] The main plywood 2 is arranged above the secondary shielding layer, and a circular anchoring hole 20 is formed in a position corresponding to the secondary shielding layer, for mounting a connecting piece. A stud 5 passes through the anchoring hole 20 of the main plywood 2 and is threadedly connected with the anchoring plate 3 below, so as to stably fix the upper and lower structures. In order to prevent deformation or cracking of the anchoring hole 20 area due to stress concentration, a deformation prevention mechanism is arranged in the anchoring hole 20.

[0039] As shown in Figure 1 and Figure 2 , it is the first embodiment of the deformation prevention mechanism, which comprises a composite inner sleeve assembly, which is nested in the anchoring hole 20 and in contact with the stud 5 passing through it, and plays a role of local reinforcement and bearing.

[0040] In addition, a nut 7 and a gasket 8 are sequentially arranged on the stud 5 in the anchoring hole 20, for adjusting the connection fastening force and dispersing the load. The top end of the stud 5 is connected with a top cap 9 and threadedly cooperates with the top cap 9, for closing and protecting the whole connecting structure. The main layer corrugated plate 6 is arranged above the main plywood 2 and welded between the main layer corrugated plate 6 and the top cap 9, to form a main shielding layer corresponding to the secondary shielding layer, thereby constructing a complete electromagnetic shielding or environmental protection system.

[0041] The composite inner sleeve assembly is composed of inner sleeve one 10 and inner sleeve two 11, which are designed in a split structure, facilitating assembly and positioning. During installation, the inner sleeve one 10 and the inner sleeve two 11 are fixed to the inner wall surface of the anchoring hole 20 of the main plywood 2 through adhesive bonding, and are in contact with the stud 5 passing through them. The two cooperate to effectively enhance the structural strength of the hole area of the main plywood 2, preventing local deformation or material fatigue caused by external force.

[0042] In order to improve the connection stability between the inner sleeve one 10 and the inner sleeve two 11, a plurality of buckle blocks 12 are arranged on the lower end surface of the inner sleeve one 10 in a circumferential direction, and a plurality of buckle grooves 13 are formed in the upper end surface of the inner sleeve two 11. During installation, the buckle blocks 12 can be embedded in the corresponding buckle grooves 13, realizing detachable buckling cooperation between the two, thereby improving the overall structural consistency and stress uniformity of the composite inner sleeve assembly.

[0043] Both the inner sleeve 10 and the inner sleeve 11 are made of composite material, such as resin-based composite material with high strength and good processing performance. Such material not only has good mechanical strength and dimensional stability, but also effectively resists environmental factors, thereby prolonging the service life of the composite inner sleeve assembly and avoiding additional stress damage to the main plywood 2.

[0044] As shown in FIG. 1, the anti-deformation mechanism includes a metal sleeve 14, which is inserted into the opening structure of the main plywood 2 and fixedly connected therewith. Figures 3 to 5 As shown in FIG. 1, the anti-deformation mechanism includes a metal sleeve 14, which is inserted into the opening structure of the main plywood 2 and fixedly connected therewith.

[0045] A plurality of protrusions 15 are uniformly distributed on the outer surface of the metal sleeve 14 in the circumferential direction, which are embedded in the hole wall of the main plywood 2 to enhance the bonding strength between the metal sleeve 14 and the main plywood 2, prevent the metal sleeve 14 from rotating or axially displacing during use, thereby significantly improving the stability and durability of the overall structure and avoiding cracks or damage to the opening area of the main plywood 2 due to stress concentration. In this embodiment, the metal sleeve 14 can also be connected to the main plywood 2 by adhesion.

[0046] As shown in FIG. 1, the anti-deformation mechanism includes a metal sleeve 14, which is inserted into the opening structure of the main plywood 2 and fixedly connected therewith. Figure 6 As shown in FIG. 1, the anti-deformation mechanism includes a metal sleeve 14, which is inserted into the opening structure of the main plywood 2 and fixedly connected therewith.

[0047] Specifically, the steel plate stamping piece 17 is installed on the upper end of the anchoring hole 20 of the main plywood 2 and is threadedly connected to the anchoring plate 3 with a blind hole by the bolt 18. Specifically, the bolt 18 is connected to the inner thread of the blind hole portion 32, and the end of the bolt 18 is provided with a bolt head 19 which is in close contact with the steel plate stamping piece 17, thereby ensuring the sealing performance of the anchoring hole 20 area.

[0048] To further improve the firmness and sealing effect of the connection part, the bolt head 19 and the steel plate stamping piece 17 are fixedly connected by full welding, which not only enhances the mechanical connection strength between the two, but also effectively improves the sealing performance of the overall structure, avoiding the problems of loosening or leakage caused by long-term use or external load.

[0049] As shown in FIG. 1, the anti-deformation mechanism includes a metal sleeve 14, which is inserted into the opening structure of the main plywood 2 and fixedly connected therewith. Figure 7As shown, it is the fourth embodiment of the anti-deformation mechanism, which provides an optimized design of the main plywood 2 opening structure, wherein a fillet structure 21 is arranged at the edge of the anchor hole 20 on the main plywood 2, which is used to replace the original right-angle transition structure, aiming to reduce the stress concentration phenomenon and improve the overall structural strength of the opening area.

[0050] In the traditional design, the edge of the anchor hole 20 usually adopts a right-angle transition, which is easy to cause local stress concentration, especially under repeated load, which is easy to cause material fatigue and crack propagation, thereby affecting the stability and service life of the entire structure. By introducing the fillet structure 21, the stress applied to the opening edge can be effectively dispersed, reducing the stress concentration point, thereby significantly improving the material fatigue resistance and carrying capacity.

[0051] In addition, the fillet structure 21 not only helps to enhance the mechanical strength of the opening area, but also improves the processing process, facilitating subsequent installation and maintenance operations. Especially under high load or dynamic load conditions, the application of the fillet structure 21 can effectively prolong the service life of the plywood anchor structure, ensuring its reliability and safety under complex working conditions.

[0052] On the other hand, the present application also provides a reinforced plywood anchoring method, the operation steps of which are as follows:

[0053] S1. Fix the anchor plate 3 with a blind hole to the insulating box plywood 1 through rivets;

[0054] S2. Seal weld the secondary layer corrugated plate 4 with the anchor plate 3 with a blind hole to form a secondary shielding layer on the insulating box plywood 1;

[0055] S3. Install the main plywood 2 on the secondary shielding layer formed, and open a circular anchor hole 20 thereon;

[0056] S4. Anchor the anti-deformation mechanism in the anchor hole 20.

[0057] Firstly, the specific anchoring mode of the anti-deformation mechanism is: the stud 5 passes through the anchor hole 20 on the main plywood 2 and is threadedly connected with the anchor plate 3 with a blind hole, the inner sleeve one 10 and the inner sleeve two 11 are fixedly connected to the inner wall of the anchor hole 20 by using the adhesive method, ensuring that they are in contact with the stud 5 inserted therein, the nut 7 and the gasket 8 are installed on the stud 5 located in the anchor hole 20 in sequence, and the top cap 9 is threadedly connected to the top end of the stud 5;

[0058] In the above steps, the inner sleeve one 10 and the inner sleeve two 11 can also be replaced by the metal sleeve 14, which is inserted into the inside of the main plywood 2 and fixedly cooperates with the main plywood 2, and the inner thread 16 is arranged in the inside of the metal sleeve 14, which cooperates with the stud 5 inserted therein and forms a threaded connection.

[0059] In addition, the steel plate stamping 17 can be used instead of the two groups of structures described above, the steel plate stamping 17 is installed on the upper end of the anchoring hole 20, and the bolt 18 is threadedly connected with the anchoring plate 3 with a blind hole, the bolt head 19 at the end of the bolt 18 is fully welded with the steel plate stamping 17 and seals the anchoring hole 20;

[0060] In addition, the edge of the anchoring hole 20 can also be processed into a round corner structure 21 instead of the original right angle transition structure, so as to reduce stress concentration and improve the structural strength of the opening area.

[0061] The basic principles, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, the above examples and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A reinforced plywood anchoring structure, characterized by: The invention comprises an insulating box plywood (1) and an anchor plate (3) with a blind hole, wherein the anchor plate (3) with a blind hole comprises a plane portion (31) and a blind hole portion (32), wherein the inner side of the blind hole portion (32) is provided with a thread, and the anchor plate (3) with a blind hole is fixed to the insulating box plywood (1) by rivets, and a secondary corrugated plate (4) and the anchor plate (3) with a blind hole are sealed and welded to form a secondary shielding layer, and a main plywood (2) is installed on the secondary shielding layer and an anchor hole (20) is opened thereon, and a stud (5) passes through the anchor hole (20) on the main plywood (2) and is threadedly connected to the anchor plate (3) with a blind hole, and an anti-deformation mechanism is installed in the anchor hole (20); The anti-deformation mechanism includes a composite inner sleeve component, the composite inner sleeve component is nested inside the anchor hole (20) and contacts the stud (5), the nut (7) and the gasket (8) are located on the stud (5) in the anchor hole (20), the top cap (9) is threadedly connected to the top of the stud (5), and the main layer corrugated plate (6) and the top cap (9) are welded to form a main shielding layer; The composite inner sleeve assembly includes an inner sleeve 1 (10) and an inner sleeve 2 (11). The inner sleeve 1 (10) and the inner sleeve 2 (11) are designed as a split structure and are fixedly connected to the inner wall of the anchor hole (20) by bonding, and are in contact with the studs (5) passing through the anchor hole, so as to collaboratively achieve local reinforcement of the opening area of ​​the main plywood (2).

2. The reinforced plywood anchoring structure according to claim 1, characterized in that: The lower side of the inner sleeve 1 (10) is provided with a plurality of buckle blocks (12), and the upper side of the inner sleeve 2 (11) is provided with a plurality of buckle grooves (13). The buckle blocks (12) and the buckle grooves (13) are buckled and matched. The inner sleeve 1 (10) and the inner sleeve 2 (11) are both made of composite materials.

3. A reinforced plywood anchoring structure, characterized by: The invention comprises an insulating box plywood (1) and an anchor plate (3) with a blind hole, wherein the anchor plate (3) with a blind hole comprises a plane portion (31) and a blind hole portion (32), wherein the inner side of the blind hole portion (32) is provided with a thread, and the anchor plate (3) with a blind hole is fixed to the insulating box plywood (1) by rivets, and a secondary corrugated plate (4) and the anchor plate (3) with a blind hole are sealed and welded to form a secondary shielding layer, and a main plywood (2) is installed on the secondary shielding layer and an anchor hole (20) is opened thereon, and a stud (5) passes through the anchor hole (20) on the main plywood (2) and is threadedly connected to the anchor plate (3) with a blind hole, and an anti-deformation mechanism is installed in the anchor hole (20); The anti-deformation mechanism comprises a metal sleeve (14), which is inserted into the interior of the main plywood (2) and fixedly matched therewith. The interior of the metal sleeve (14) is provided with an internal thread (16), which matches with a stud (5) passing through the metal sleeve to form a threaded connection.

4. The reinforced plywood anchoring structure according to claim 3, characterized in that: A plurality of protrusions (15) are distributed in an annular manner on the outer surface of the metal sleeve (14), and the protrusions (15) are used to enhance the fixed connection strength between the metal sleeve (14) and the main plywood (2).

5. A reinforced plywood anchoring structure, characterized by: The invention comprises an insulating box plywood (1) and an anchor plate (3) with a blind hole, wherein the anchor plate (3) with a blind hole comprises a plane portion (31) and a blind hole portion (32), wherein the inner side of the blind hole portion (32) is provided with a thread, and the anchor plate (3) with a blind hole is fixed to the insulating box plywood (1) by rivets, and a secondary corrugated plate (4) and the anchor plate (3) with a blind hole are sealed and welded to form a secondary shielding layer, and a main plywood (2) is installed on the secondary shielding layer and an anchor hole (20) is opened thereon, and a stud (5) passes through the anchor hole (20) on the main plywood (2) and is threadedly connected to the anchor plate (3) with a blind hole, and an anti-deformation mechanism is installed in the anchor hole (20); The anti-deformation mechanism comprises a steel plate stamping part (17), the steel plate stamping part (17) is mounted on the upper end of the anchor hole (20), a bolt (18) is threadedly connected to the anchor plate (3) with a blind hole, and a bolt head (19) at the end of the bolt (18) contacts the steel plate stamping part (17) and seals the anchor hole (20).

6. The reinforced plywood anchoring structure according to claim 5, characterized in that: The bolt head (19) and the steel plate stamping part (17) are fixedly connected by full welding.

7. The reinforced plywood anchoring structure according to claim 5, characterized in that: The anti-deformation mechanism comprises a rounded corner structure (21), which is opened at the edge of the anchor hole (20) on the steel main plywood (2) to reduce stress concentration and improve the structural strength of the opening area.

8. An anchoring method, comprising the reinforced plywood anchoring structure according to any one of claims 1 to 7, characterized in that: The method comprises the following steps: S1. Fix the anchor plate (3) with a blind hole to the plywood (1) of the insulation box; S2. The secondary corrugated plate (4) is sealed and welded with the anchor plate (3) having a blind hole to form a secondary shielding layer on the insulating box plywood (1); S3. Then the main plywood (2) is installed on top of the formed secondary shielding layer, and a circular anchor hole (20) is opened thereon; S4. Anchor the anti-deformation mechanism in the anchor hole (20).

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