A shockproof sleeve for pipe threads and nuts

Abstract

An anti-collision sleeve for pipe threads and nuts is a hollow structure with an opening at one end and a closed end, made of elastic material. It includes a sidewall, a bottom wall at the lower end of the sidewall, and an opening at the upper part of the sidewall. Both the sidewall and the opening have a circumferential wavy structure; the bottom wall has a concentric corrugated surface structure. Because the sidewall and opening are both circumferentially wavy, when applied to small-sized joints, they appear wrinkled. The inner wall surface contacts the pipe joint while simultaneously forming a support structure with the outer wall surface, preventing damage to the internal parts in the event of an impact, thus providing better protection for small-sized joints. When applied to large-sized joints, the circumferentially wavy wall is expanded, making it nearly circular, increasing the inner diameter while maintaining protective performance. Furthermore, the bottom wall forms a structure that facilitates extension, providing the necessary area for large-sized expansion.

Description

Technical Field

[0001] This invention relates to the field of aero-engine manufacturing technology, and in particular to an anti-collision sleeve for pipe threads and nuts. Background Technology

[0002] In aero engines, there are numerous piping components. Pipe joints are typically nuts or exposed pipe threads, which are susceptible to impact during transportation or on-site assembly. Existing protective devices include plugs that mate with internal or external threads, directly nested rubber heads, or protective cloth bags. However, none of these methods provide adequate impact protection and fail to effectively cushion impacts. Threaded plugs, in particular, require precise thread matching. Since thread sizes vary, the diverse range of sizes and types of plugs leads to significant time wastage during disassembly and reassembly after testing. Furthermore, many threads are similar in size, and the plugs, made of rigid PVC, are prone to damage due to thread mismatch, resulting in plastic particles that can enter the pipes, increasing the burden on components such as lubricating oil and fuel filters and affecting their lifespan. Directly nested rubber heads offer only partial protection, and cloth bags are not very effective at preventing impacts and are prone to leaving stains. Therefore, protecting these structures remains a pressing issue that urgently needs to be addressed. Summary of the Invention

[0003] The main objective of this invention is to provide an anti-collision sleeve for pipe threads and nuts, thereby increasing the protection of pipe parts during engine disassembly and assembly and pipe transportation, improving protection efficiency, reducing unnecessary working time, and perfecting the protection measures.

[0004] To achieve the above objectives, this invention proposes an anti-collision sleeve for pipe threads and nuts. The sleeve is a hollow structure with an opening at one end and a closed end, made of an elastic material. It includes a sidewall, a bottom wall at the lower end of the sidewall, and an opening at the upper part of the sidewall. Both the sidewall and the opening have a circumferential wavy structure; the bottom wall has a concentric corrugated surface structure. Because the sidewall and opening are both circumferentially wavy, when applied to small-sized joints, they appear wrinkled. The inner wall surface contacts the pipe joint while simultaneously forming a support structure with the outer wall surface, preventing damage to the internal parts during impacts and providing better protection for small-sized joints. When applied to large-sized joints, the circumferentially wavy wall is expanded, making it nearly circumferential, increasing the inner diameter while maintaining protective performance. Furthermore, the concentric corrugated surface structure of the bottom wall, similar to the ripples on water, creates a structure that is easy to extend, obtaining the area required for large-sized expansion from a spatial perspective. In terms of materials, elastic materials are selected. Firstly, they facilitate the unfolding of the side walls, openings, and bottom walls. Secondly, they can provide a certain degree of flexibility when the local structure is insufficient to meet the stretching requirements. At the same time, elastic materials can better avoid violent collisions and have a more obvious cushioning effect.

[0005] Preferably, the elastic material is silicone or rubber.

[0006] Preferably, the inner circumferential wave diameter of the sidewall cross-section is 22mm, and the outer circumferential wave diameter is 29mm. This size, combined with the expandable structural design of the sidewall, opening, and bottom wall, achieves versatility in practical applications.

[0007] Preferably, the cross-section of the sidewall is divided into 15 equally spaced wavy circles.

[0008] Preferably, the opening has a tapered constriction structure, with the diameter of the opening gradually decreasing along the direction of the opening end. This constriction structure allows the entire anti-collision sleeve to be fitted onto the connector, forming a protective enclosure that prevents the sleeve from falling off due to vibrations in the conduit during transport.

[0009] Preferably, the crests and troughs of the wave structure on the outer and inner surfaces of the sidewall are rounded. Rounded corners reduce stress concentration, which could lead to damage to the anti-collision sleeve.

[0010] Due to the adoption of the above technical solution, the beneficial effects of the present invention are as follows:

[0011] (1) The anti-collision sleeve provided by this invention has a circumferential wave-shaped structure for both the sidewalls and the opening. When applied to small-sized joints, it appears as a pleated shape. The inner wall surface contacts the pipe joint while cooperating with the outer wall surface to form a supporting structure, preventing damage to the interior during collisions and providing better protection for small-sized joints. When applied to large-sized joints, the circumferential wave-shaped wall surface is expanded, making it close to a circular shape, increasing the inner diameter while ensuring protective performance. In addition, the bottom wall adopts a concentric corrugated curved surface structure, similar to the curved surface of water ripples, forming a structure that is easy to extend, obtaining the area required for large-sized expansion from a spatial shape perspective. In terms of materials, an elastic material is selected, which facilitates the expansion of the sidewalls, opening, and bottom wall, and can also provide a certain degree of extensibility when the local structure is insufficient to meet the expansion requirements. At the same time, the elastic material can better avoid violent collisions, and the buffering effect is more obvious.

[0012] (2) The anti-collision sleeve provided by the present invention has unfoldable side walls and bottom walls, which are suitable for joints of different sizes. It effectively overcomes the problem of a lot of time wasted due to the large variety of sizes in the prior art during disassembly and assembly after test runs. In addition, the anti-collision sleeve is made of elastic material, specifically silicone or rubber, which effectively overcomes the problem of easy breakage and plastic particles generated by PVC hard plastic in the prior art.

[0013] (3) The anti-collision sleeve provided by the present invention is a hollow structure with an opening at one end and a closed end at the other end. It can not only provide better protection for the joint, but also greatly reduce the time required for classification of the above-mentioned prior art due to its versatility. It also provides more complete protection for the joint of the parts. In terms of service life and manufacturing cost (i.e., the cost of the general kit is lower than that of the special kit), it is also greatly improved compared with the existing measures, and further improves work efficiency during disassembly and installation.

[0014] (4) The anti-collision sleeve provided by the present invention achieves universality through the corrugated structure of the material, side wall, bottom wall and opening, replacing the previous plastic plug thread installation, saving the time of finding and installing the plug according to the joint size and avoiding plastic debris falling off due to the assembly of the plastic plug and the joint, thus achieving protection against excess. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1This is a three-dimensional structural diagram of the anti-collision sleeve for pipe threads and nuts provided by the present invention;

[0017] Figure 2 This is a cross-sectional view of the anti-collision sleeve provided by the present invention;

[0018] Figure 3 This is a cross-sectional view of the side wall of the anti-collision sleeve provided by the present invention;

[0019] Figure 4 This is a schematic diagram showing the dimensions of the cross-section of the side wall of the anti-collision sleeve provided by the present invention.

[0020] The following are the symbols in the attached diagram: 1. Side wall; 2. Bottom wall; 3. Opening. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0022] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0023] Combination Figures 1 to 4As shown, an anti-collision sleeve for pipe threads and nuts is provided. The sleeve is a hollow structure with an opening at one end and a closed end, made of an elastic material, specifically silicone or rubber. The sleeve includes a side wall 1, a bottom wall 2 located at the lower end of the side wall 1, and an opening 3 located at the upper part of the side wall 1. Both the side wall 1 and the opening 3 have a circumferential wavy structure; the bottom wall 2 has a concentric corrugated surface structure. Because both the side wall 1 and the opening 2 have a circumferential wavy structure, when applied to small-sized joints, they appear wrinkled. The inner wall surface contacts the pipe joint while simultaneously forming a support structure with the outer wall surface, preventing damage to the internal parts during impacts and providing better protection for small-sized joints. When applied to large-sized joints, the circumferential wavy wall surface is expanded, making it nearly circular, increasing the inner diameter while maintaining protective performance. Furthermore, the bottom wall 2 employs a concentric corrugated curved surface structure, similar to the ripples on water, creating a structure that facilitates expansion and providing the necessary area for large-scale unfolding. In terms of materials, an elastic material is chosen. This facilitates the unfolding of the side walls 1, opening 3, and bottom wall 2, and provides some flexibility when local structures are insufficient for expansion. The elastic material also better prevents violent collisions, resulting in a more pronounced cushioning effect. The anti-collision sleeve, made of durable and elastic silicone or rubber, is designed with an open end and a closed end. When fitted onto the connector, the expulsion of a corresponding volume of air causes the sleeve to adhere tightly to the connector due to air pressure during removal, preventing it from falling off due to vibrations in the conduit during transport. With sleeves at both ends, a pressure difference exists, further enhancing the adsorption and nesting effect of the sleeves.

[0024] Combination Figure 4 As shown, in the cross-section of sidewall 1, the inner circumferential wave diameter is 22mm, and the outer circumferential wave diameter is 29mm. The cross-section of sidewall 1 is divided into 15 equally spaced waves. This size, combined with the expandable structural design of the sidewall, opening, and bottom wall, achieves versatility in practical applications.

[0025] Combination Figure 1 , Figure 2 As shown, the opening 3 has a tapered constriction structure, and the diameter of the opening 3 gradually decreases along the direction of the opening end. The constriction structure of the opening allows the entire anti-collision sleeve to be fitted onto the connector, forming a wrapping structure to prevent the anti-collision sleeve from falling off due to vibration of the conduit during transportation.

[0026] Combination Figure 4 As shown, the crests and troughs of the wave structure on the outer and inner surfaces of the sidewall 1 are all rounded. Rounded corners reduce stress concentration, which could lead to damage to the anti-collision sleeve.

[0027] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A shockproof sleeve for pipe threads and nuts, characterized in that, The anti-collision sleeve is a hollow structure with an opening at one end and a closed end at the other end. It is made of elastic material, and the elastic material is rubber. It includes a side wall (1), a bottom wall (2) located at the lower end of the side wall (1), and an opening (3) located at the upper part of the side wall (1). Both the sidewall (1) and the opening (3) are circumferential wave-shaped structures; the peaks and troughs of the wave structure on the outer and inner surfaces of the sidewall (1) are rounded; when applied to small-sized joints, the sidewall (1) and the opening (3) are wrinkled, and the inner wall surface contacts the pipe joint while cooperating with the outer wall surface to form a support structure; when applied to large-sized joints, the circumferential wave-shaped wall surfaces of the sidewall (1) and the opening (3) are stretched open to make them close to a circular shape to expand the inner diameter; The bottom wall (2) is a concentric corrugated surface structure, which is similar to the surface of water ripples, forming a structure that is easy to extend in order to obtain the area required for large-scale unfolding from the spatial shape. The opening (3) has a tapered constriction structure, and the diameter of the opening (3) gradually decreases along the direction of the opening end.

2. The anti-collision sleeve for pipe threads and nuts as described in claim 1, characterized in that, On the cross-section of the sidewall (1), the inner circumferential wave diameter is 22 mm and the outer circumferential wave diameter is 29 mm.

3. The anti-collision sleeve for pipe threads and nuts as described in claim 2, characterized in that, On the cross-section of the sidewall (1), 15 waves are used to divide the circumference equally.

4. The anti-collision sleeve for pipe threads and nuts as described in claim 1, characterized in that, The elastic material is silicone.

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