Sealing structure

Abstract

The utility model discloses a sealing structure relates to cold storage pool building heat preservation construction and protection layer sealing technical field, wherein, sealing structure includes protection layer, nut and plug, the protection layer is seted up with opening, the nut is located protection layer, the nut is seted up with the threaded hole of corresponding intercommunication with opening, the outer thread of the outer peripheral wall of plug is equipped with with threaded hole screw thread cooperation. The utility model aims at providing a kind of to realize the convenient construction and reliable sealing of heat preservation layer foaming operation, sealing structure is convenient for secondary supplementary foaming and maintenance and overhaul simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of thermal insulation construction and protective layer sealing technology for cold water storage tanks, and in particular to a sealing structure. Background Technology

[0002] In the thermal insulation construction of civil engineering cold water storage tanks, a protective layer is usually installed outside the insulation layer to ensure its thermal insulation performance. In existing technology, the protective layer is generally made of 6mm thick stainless steel plates welded together. However, the welding process may damage the insulation layer and even cause a fire. Therefore, on-site foamed insulation is usually foamed in a confined space between the civil engineering wall and the stainless steel protective layer. To perform the foaming operation, holes with a diameter of 10-30mm are evenly opened in the stainless steel protective layer, and after foaming, they are sealed with high-performance metal adhesive.

[0003] However, the sealing effect of metal adhesive cannot be completely controlled, as it is closely related to factors such as the weather during construction, surface cleanliness, and the skill of the construction personnel. Secondly, if a second layer of insulation is needed after sealing, the bonded areas with high-performance adhesive are difficult to reopen. Cutting in other areas would introduce electrical safety issues and other uncertainties. Utility Model Content

[0004] The main purpose of this utility model is to propose a sealing structure that provides convenient construction and reliable sealing for the foaming operation of the insulation layer, while also facilitating secondary foaming and maintenance.

[0005] To achieve the above objectives, the sealing structure proposed in this utility model includes:

[0006] A protective layer having an opening;

[0007] A nut, wherein the nut is disposed on the protective layer, and the nut has a threaded hole corresponding to and communicating with the opening; and

[0008] A plug, wherein the outer peripheral wall of the plug is provided with an external thread that mates with the threaded hole.

[0009] In one embodiment, the plug includes a head and a connecting portion connected together, the connecting portion is provided with the external thread, the sealing structure includes a sealing ring, and a positioning ring groove is provided at the connection between the connecting portion and the head, the sealing ring being accommodated in the positioning ring groove.

[0010] In one embodiment, a limiting boss is provided on the side of the head facing the connecting part, and a limiting groove is formed on the outer peripheral wall of the end of the nut away from the protective layer, and the limiting boss is inserted into the limiting groove.

[0011] In one embodiment, both the inner peripheral wall of the threaded hole and the outer peripheral wall of the plug are provided with a dry film lubricant coating.

[0012] In one embodiment, the outer peripheral wall of the plug has a tapered sealing section, and the inner peripheral wall of the threaded hole has a tapered sealing surface that mates with the tapered sealing section.

[0013] In one embodiment, the cross-sectional area of ​​both the plug and the threaded hole gradually increases from the end closer to the protective layer to the end farther away from the protective layer.

[0014] In one embodiment, the sealing structure includes a protective cover that covers the plug and is detachably connected to the protective layer.

[0015] In one embodiment, the protective cover is connected to the end of the plug away from the protective layer.

[0016] In one embodiment, the end of the nut has a mounting portion that is connected to the protective layer.

[0017] In one embodiment, the mounting portion is welded to the protective layer.

[0018] In this technical solution, after the protective layer is installed, the insulation layer is foamed through the threaded hole of the nut. The foaming material enters the space between the insulation layer and the building wall through the threaded hole, completing the foaming process. After foaming, the plug is screwed into the nut to seal the threaded hole, ensuring the sealing performance of the insulation layer. If secondary foaming of the insulation layer is required during use, the plug can be easily unscrewed, and foaming can be carried out through the threaded hole. After maintenance, the plug is retightened to ensure sealing performance. The nut and plug structure facilitates secondary foaming and maintenance of the insulation layer, making the operation simple and quick. The nut and plug connection method avoids the uncontrollable factors of traditional glue bonding, improving safety during construction and use. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 A schematic diagram of an embodiment of the protective layer and nut assembly provided by this utility model;

[0021] Figure 2This utility model provides a structural schematic diagram of an embodiment of the mating of a plug and a sealing ring;

[0022] Figure 3 A schematic diagram of a screw plug embodiment of this utility model is provided;

[0023] Figure 4 A schematic diagram of an embodiment of the nut provided by this utility model.

[0024] Explanation of icon numbers:

[0025] 100. Sealing structure; 1. Protective layer; 11. Opening; 2. Nut; 21. Threaded hole; 22. Limiting groove; 23. Mounting part; 3. Plug; 31. Head; 32. Connecting part; 33. Positioning ring groove; 34. Limiting boss; 35. Conical sealing section; 4. Sealing ring.

[0026] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0028] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0029] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0030] This utility model proposes a sealing structure 100.

[0031] Please see Figure 1 and Figure 2 In one embodiment of the present invention, the sealing structure 100 includes a protective layer 1, a nut 2, and a plug 3. The protective layer 1 has an opening 11. The nut 2 is disposed on the protective layer 1 and has a threaded hole 21 that communicates with the opening 11. The outer peripheral wall of the plug 3 has an external thread that is threadedly engaged with the threaded hole 21.

[0032] In this technical solution, after the protective layer 1 is installed, the insulation layer is foamed through the threaded hole 21 of the nut 2. The foaming material enters the space between the insulation layer and the building wall through the threaded hole 21, completing the foaming process. After foaming, the plug 3 is screwed into the nut 2 to seal the threaded hole 21, ensuring the sealing performance of the insulation layer. If secondary foaming of the insulation layer is required during use, the plug 3 can be easily unscrewed, and foaming can be carried out through the threaded hole 21. After maintenance, the plug 3 is retightened to ensure sealing performance. The structure of the nut 2 and plug 3 facilitates secondary foaming and maintenance of the insulation layer, making the operation simple and quick. The connection method of the nut 2 and plug 3 avoids the uncontrollable factors of traditional glue bonding, improving safety during construction and use.

[0033] For improved sealing, please refer to [link / reference]. Figure 2 and Figure 3In one embodiment, the plug 3 includes a head 31 and a connecting portion 32 connected together. The connecting portion 32 is provided with external threads. The sealing structure 100 includes a sealing ring 4. A positioning ring groove 33 is formed at the connection between the connecting portion 32 and the head 31, and the sealing ring 4 is accommodated in the positioning ring groove 33. The synergistic effect of the sealing ring 4 and the positioning ring groove 33 significantly improves the sealing performance and reliability of the sealing structure 100. The sealing ring 4 achieves sealing by filling gaps and adapting to minor deformations; the positioning ring groove 33 provides a fixed position for the sealing ring 4 and restricts axial movement. This structural design not only effectively prevents leakage but also extends the service life of the sealing structure 100, making it more reliable and efficient in practical applications.

[0034] To avoid over-tightening plug 3, please refer to [link / reference needed]. Figure 3 and Figure 4 In one embodiment, a limiting boss 34 is provided on the side of the head 31 facing the connecting part 32, and a limiting groove 22 is formed on the outer peripheral wall of the end of the nut 2 away from the protective layer 1. The limiting boss 34 is inserted and limited within the limiting groove 22. By setting the limiting boss 34 and the limiting groove 22, over-tightening of the plug 3 can be effectively avoided, thereby protecting the sealing ring 4 and ensuring the normal operation of the sealing structure 100. The limiting boss 34 limits the tightening depth and protects the sealing ring 4; the limiting groove 22 provides limiting space and prevents over-tightening. The synergistic effect of the two not only improves the sealing performance and reliability, but also simplifies the assembly process and improves assembly efficiency. Specifically, both the limiting boss 34 and the limiting groove 22 are annular structures, ensuring that the limiting boss 34 can be evenly stressed when inserted into the limiting groove 22, thereby achieving a reliable limiting function.

[0035] In another embodiment, both the inner peripheral wall of the threaded hole 21 and the outer peripheral wall of the plug 3 are coated with a dry film lubricant. This design significantly reduces the coefficient of friction between the threads, improves assembly efficiency, reduces wear and corrosion, and enhances sealing performance and structural stability. The environmental friendliness and harsh environment resistance of the dry film lubricant coating make it an ideal lubrication solution, particularly suitable for sealing structures 100 requiring high reliability and low maintenance.

[0036] For further improvement of sealing performance, please refer to Figure 2In one embodiment, the outer peripheral wall of the plug 3 has a tapered sealing section 35, and the inner peripheral wall of the threaded hole 21 has a tapered sealing surface that mates with the tapered sealing section 35. The tapered sealing structure 100 significantly improves sealing performance and reliability by increasing the contact area, uniformly distributing pressure, and providing automatic alignment. The tapered sealing structure 100 not only effectively prevents leakage but also simplifies the assembly process and reduces maintenance requirements.

[0037] Specifically, in one embodiment, the cross-sectional areas of both the plug 3 and the threaded hole 21 gradually increase from the end closer to the protective layer 1 to the end farther away from the protective layer 1. This gradual increase in cross-sectional area forms a conical sealing structure 100. This design not only significantly improves sealing performance and reliability by increasing the contact area, uniformly distributing pressure, and automatically aligning the threads, but also provides a guiding function during tightening, allowing the plug 3 to smoothly enter the threaded hole 21, simplifying the assembly process and improving assembly efficiency.

[0038] To protect the plug 3 and nut 2, in one embodiment, the sealing structure 100 includes a protective cover that covers the plug 3 and is detachably connected to the protective layer 1. This design significantly improves the reliability and service life of the sealing structure 100 by providing additional physical protection against external impacts, corrosion, and impurities. The detachable design of the protective cover makes maintenance and repair more convenient, further optimizing the overall performance of the sealing structure 100. Additionally, markings can be placed on the side wall of the protective cover to guide personnel.

[0039] Furthermore, in one embodiment, the protective cover is connected to the end of the plug 3 furthest from the protective layer 1. This design, where the protective cover is connected to the end of the plug 3 furthest from the protective layer 1, significantly enhances the protective performance and reliability of the sealing structure 100 by directly protecting the head 31 and outer peripheral wall of the plug 3. The protective cover prevents dust and impurities from entering, maintaining the integrity of the sealing structure 100, while simplifying maintenance and repair processes.

[0040] In one embodiment, please refer to Figure 4The nut 2 has a mounting portion 23 at its end, which is connected to the protective layer 1. This design significantly enhances the stability and sealing performance of the sealing structure 100 by firmly fixing the nut 2 to the protective layer 1. The mounting portion 23 effectively prevents the nut 2 from loosening or shifting, ensuring that the sealing structure 100 maintains a good sealing effect throughout long-term use.

[0041] Furthermore, in one embodiment, the mounting portion 23 is welded to the protective layer 1. The mounting portion 23 and the protective layer 1 are connected by welding. This connection method, by firmly combining the mounting portion 23 and the protective layer 1, significantly enhances the stability and sealing performance of the sealing structure 100. The welded connection can effectively prevent the nut 2 from loosening or shifting, ensuring that the sealing structure 100 maintains a good sealing effect throughout long-term use.

[0042] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A seal structure, characterized by, The utility model relates to a screw nut structure, which comprises: a protective layer with an opening; a nut provided on the protective layer, the nut being provided with a threaded hole corresponding to the opening; and a nipple provided with an outer thread on the outer circumferential wall thereof, the outer thread being threadedly engaged with the threaded hole.

2. The seal structure of claim 1, wherein The nipple comprises a head and a connecting portion connected to the head, the connecting portion being provided with the outer thread, the sealing structure comprising a sealing ring, the connecting portion being provided with a positioning ring groove at the connecting portion of the head, and the sealing ring being accommodated in the positioning ring groove.

3. The seal structure of claim 2, wherein The head is provided with a limiting boss on the side facing the connecting portion, the outer circumferential wall of the end of the nut away from the protective layer is provided with a limiting groove, and the limiting boss is inserted into the limiting groove.

4. The seal structure of any one of claims 1 to 3, wherein, The inner circumferential wall of the threaded hole and the outer circumferential wall of the nipple are both provided with a dry film lubricant coating.

5. The seal structure of any one of claims 1 to 3, wherein, The outer circumferential wall of the nipple is provided with a tapered sealing section, and the inner circumferential wall of the threaded hole is provided with a tapered sealing surface matched with the tapered sealing section.

6. The seal structure of claim 5, wherein The cross-sectional area of the nipple and the threaded hole gradually increases from the end close to the protective layer to the end away from the protective layer.

7. The seal structure of any one of claims 1 to 3, wherein, The sealing structure comprises a protective cover, the protective cover being provided on the nipple and being detachably connected to the protective layer.

8. The seal structure of claim 7, wherein The protective cover is connected to the end of the nipple away from the protective layer.

9. The seal structure of any one of claims 1 to 3, wherein, The end of the nut is provided with a mounting portion, and the mounting portion is connected to the protective layer.

10. The seal structure of claim 9, wherein The mounting portion is welded to the protective layer.

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