Double-layer chamfering guide ring structure of bellows socket end

Abstract

The utility model discloses a corrugated pipe socket end double -deck chamfering guide circle structure relates to corrugated pipe connecting component technical field, including up and down symmetry and rotatable joint connecting assembly, and connecting assembly contains upper part, lower part connecting portion, and the upper part connecting portion top end outer thread section adapts external pipe fitting, and the lower part connecting portion bottom end inner thread section connects corrugated pipe, up and down connecting assembly is through the staggered rotation joint of containing convex block and the joint structure of limiting rod, and the up and down end surface of joint part is equipped with double -deck chamfering guide structure, can guide and limit. The connecting main part is polygonal column structure, and the outside is equipped with the reinforcing rib, and the thread section is integrally formed with the connecting main part, and the joint gap can fill the sealant strip. The structure solves the problem of the existing connection alignment difficult, the joint is not firm and the like, improves the connection convenience, the sealing property and the strength, is applicable to all kinds of corrugated pipe connection scene.

Description

Technical Field

[0001] This utility model provides a guide ring structure, and particularly relates to a double-layer chamfered guide ring structure at the end of a corrugated pipe socket. Background Technology

[0002] Corrugated pipes are widely used in water supply and drainage, gas transmission and other fields. The spigot end connection component (the structure used to connect the corrugated pipe to other pipe fittings or itself, and to ensure the connectivity and sealing of the pipeline system) is the key to ensuring the reliability of the pipeline connection.

[0003] Existing corrugated pipe spigot connection structures mostly employ simple threads or single locking components. The basic structure generally consists of a single connecting section with a base locking block or thread. While this can achieve a preliminary connection, it has significant shortcomings: First, the guiding function is lacking or limited, making precise alignment difficult during connection. This requires repeated adjustments, which is time-consuming, labor-intensive, and prone to damaging the pipe fittings. Second, the locking and sealing structure is simple, making the connection prone to loosening and sealing failure under external forces or media impacts, leading to leaks. Third, the structural strength is insufficient, lacking targeted reinforcement design. Long-term use can easily result in deformation and breakage, affecting the lifespan and safety of the pipeline system. Utility Model Content

[0004] To address the aforementioned issues, this application provides a double-layer chamfered guide ring structure for the corrugated pipe spigot end, which solves the problems of difficult alignment and insecure engagement during connection, enhances sealing performance and structural strength, and meets the requirements for stable pipeline connection.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a double-layer chamfered guide ring structure for the spigot end of a corrugated pipe, including a connecting component that is symmetrically distributed and rotatably engaging. The connecting component includes an upper connecting part and a lower connecting part. The top end of the upper connecting part is provided with an external thread section for adapting and connecting with an external pipe fitting. The bottom end of the lower connecting part is provided with an internal thread section for connecting a corrugated pipe.

[0006] The upper and lower connecting components are staggered and rotated together by mutually adaptable locking structures. The locking structure includes protruding locking blocks symmetrically distributed on the upper and lower connecting components, and limiting rods located between the protruding locking blocks and corresponding to the protruding locking blocks. The protruding locking blocks and limiting rods are adapted in shape, and after the upper and lower connecting components are locked together, a double-layer chamfered guide structure is formed for guiding and limiting. The chamfers of the guide structure are respectively set on the upper and lower end faces of the locking part to play a guiding role during the rotation locking process of the connecting components, and to limit the relative position of the connecting components after locking.

[0007] Preferably, the external threaded section of the upper connecting part is cylindrical, and the outer surface is machined with uniformly distributed external threads. The connecting body at the lower part of the upper connecting part is a polygonal columnar structure, and the protruding locking block is disposed on the side of the polygonal columnar structure and distributed along the side of the polygon.

[0008] Preferably, the internal thread section of the lower connecting part is cylindrical, and the inner surface is machined with an internal thread adapted to the bellows. The connecting body of the upper part of the lower connecting part is also a polygonal columnar structure. The limiting rod is opened on the side of the polygonal columnar structure, and the number and position of the limiting rod correspond one-to-one with the protruding locking block of the upper connecting component.

[0009] Preferably, the protruding locking block is elongated and extends along the axial direction of the connecting component. Both the upper and lower end faces of the protruding locking block are chamfered, and the upper and lower end faces of the limiting rod are also chamfered to match the chamfer of the protruding locking block, together forming the double-layer chamfered guide structure.

[0010] Preferably, the outer side wall of the connecting body of the upper and lower connecting components is provided with reinforcing ribs, which are arranged along the axial direction of the connecting components and are evenly distributed around the periphery of the connecting body.

[0011] Preferably, the external threaded section of the upper connecting part and the connecting body are integrally formed, and the internal threaded section of the lower connecting part and the connecting body are integrally formed. The connecting body is made of plastic or metal.

[0012] Preferably, after the upper and lower connecting components are rotated and engaged, the gap at the engagement point can be filled with a sealing strip. The sealing strip is adapted to the shape of the engagement point to enhance the sealing performance of the connection between the connecting components.

[0013] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages compared with the prior art:

[0014] Existing corrugated pipe spigot connections often suffer from problems such as connection difficulties, poor sealing, and insufficient structural strength due to poor guide and locking structure design. This device solves the problems of corrugated pipe spigot connection in existing technologies by setting up symmetrical and rotatable locking connection components. The external threaded section at the top of the upper connection part adapts to external pipe fittings, and the internal threaded section at the bottom of the lower connection part connects to the corrugated pipe. With the help of mutually adaptable locking structures, namely the symmetrically distributed protruding locking blocks and corresponding limiting rods on the upper and lower connection components, staggered rotation locking is achieved. At the same time, the double-layer chamfered guide structure on the upper and lower end faces of the locking part plays a guiding role and limits the relative position during connection, improving the convenience and stability of connection. The reinforcing ribs on the outer wall of the connection body enhance the structural strength, and the locking gap can be filled with sealing strips to improve sealing. The one-piece molded connection structure ensures overall stability, thereby solving the problems of corrugated pipe spigot connection in existing technologies.

[0015] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the installation of a double-layer chamfered guide ring structure for the corrugated pipe socket end according to the present invention;

[0017] Figure 2 This is an exploded view of a double-layer chamfered guide ring structure for the spigot end of a corrugated pipe according to this utility model;

[0018] Figure 3 This is a cross-sectional view of a guide assembly with a double-layer chamfered guide ring structure at the end of a bellows spigot, according to this utility model.

[0019] Figure 4 This is a cross-sectional view of the connection point of a double-layer chamfered guide ring structure at the end of a corrugated pipe socket according to this utility model.

[0020] As shown in the figure:

[0021] 1. Connecting component; 2. Engaging structure; 11. Upper connecting part; 12. Lower connecting part; 13. External thread section; 14. Internal thread section; 21. Protruding locking block; 22. Limiting rod. Detailed Implementation

[0022] 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 protection scope of the present utility model.

[0023] It should be noted that the terms "vertical," "horizontal," "up," "down," "left," "right," and similar expressions used in this article are for illustrative purposes only and do not represent the only possible implementation.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention; the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] like Figure 1 and Figure 2 As shown, a double-layer chamfered guide ring structure for a corrugated pipe spigot end includes a connecting component 1 that is symmetrically distributed and rotatably engaged. The connecting component 1 has an upper connecting part 11 and a lower connecting part 12. The external threaded section 13 at the top of the upper connecting part 11 is used for fitting and connecting with an external pipe fitting, and the internal threaded section 14 at the bottom of the lower connecting part 12 is used for connecting a corrugated pipe. The upper and lower connecting components 1 are staggered and rotatably engaged by a mutually adaptable engaging structure 2. The engaging structure 2 includes protruding locking blocks 21 symmetrically distributed on the upper and lower connecting components 1, and a locking block located on the protrusion. The limiting rod 22 between the locking blocks 21 and corresponding to the protruding locking block 21 has a shape that matches the protruding locking block 21 and the limiting rod 22. The double-layer chamfered guide structure formed after the upper and lower connecting components 1 are engaged has chamfers on the upper and lower end faces of the engaging part, which can play a guiding role when the connecting components 1 are rotated and engaged and limit the relative position after engagement. The protruding locking block 21 is long and extends along the axial direction of the connecting components 1, and its upper and lower end faces are chamfered. The upper and lower end faces of the limiting rod 22 are also provided with chamfers that match the chamfers of the protruding locking block 21, together forming the double-layer chamfered guide structure.

[0026] In this embodiment, the external thread section 13 of the upper connecting part 11 and the internal thread section 14 of the lower connecting part 12 are both precision threaded with a triangular thread profile and a pitch of 2mm to ensure tight connection with the corresponding pipe fittings and bellows. The polygonal columnar structure of the connecting body is specifically a regular hexagon. There are 6 protruding locking blocks 21 and 6 limiting rods 22, which are distributed one-to-one along the side of the regular hexagon. The height of the protruding locking blocks 21 is set to 5mm. The length of the limiting rods 22 is consistent with the extension length of the protruding locking blocks 21, which is 1 / 2 of the axial length of the connecting body.

[0027] like Figure 3 and Figure 4 As shown, the external thread section 13 of the upper connecting part 11 is cylindrical and has uniform external threads on its outer surface. The protruding locking block 21 is provided on the side and distributed along the side. The internal thread section 14 of the lower connecting part 12 is cylindrical and has internal threads on its inner surface that are compatible with the bellows. The upper connecting body is also a polygonal columnar structure. The limiting rod 22 is provided on the side of the polygonal columnar structure and its number and position correspond one-to-one with the protruding locking block 21. The outer wall of the connecting body of the upper and lower connecting components 1 is provided with reinforcing ribs that are arranged axially and evenly distributed. The external thread section 13 of the upper connecting part 11 and the connecting body, and the internal thread section 14 of the lower connecting part 12 and the connecting body are all integrally formed structures. The connecting body is made of plastic or metal. After the upper and lower connecting components 1 are rotated and locked, the gap of the locking part can be filled with a sealing strip that is adapted to its shape to enhance the sealing of the connection.

[0028] When actually installing and using this device, an adjustable wrench or pipe wrench (used to tighten the connection between the external thread section 13 and the external pipe fitting, and the internal thread section 14 and the bellows) should be used. Before installation, burrs on the thread section of the connecting component 1 and the bellows interface can be cleaned with 80-grit sandpaper to avoid scratching the sealing surface. If the medium is a corrosive fluid, the connecting body can be made of PVC material (plastic) or 316L stainless steel (metal). In addition to nitrile rubber, EPDM rubber can also be used for the sealing strip to improve weather resistance. At the same time, PTFE sealing tape can be wrapped around the thread section to assist in sealing. After installation, the pressure at the connection should be checked with a pipeline pressure gauge to ensure that there is no leakage. If necessary, the width of the gap at the mating part can be measured with a vernier caliper to select the appropriate sealing strip specification.

[0029] Specifically, when installing this device, first use a bellows-specific cutter (blade-type structure, adjustable cutting diameter) to vertically cut the end of the bellows to ensure a smooth cut. Then, use a chamfering tool to chamfer the inner wall of the bellows interface at 1×45° to avoid damaging the sealing strip during installation. During installation, first manually pre-rotate the internal thread section 14 of the lower connecting part (12) to the bellows interface 3-5 turns. Use a right-angle ruler to calibrate the coaxiality of the connecting component 1 and the bellows to ensure that the deviation does not exceed 2°. Then, use pipe wrenches to clamp the polygonal columnar structure of the connecting body (avoid damaging the reinforcing ribs) and screw the internal thread section 14 until it fits against the end face of the bellows interface. Subsequently, pre-connect the external thread section 13 of the upper connecting part 11 to the external pipe fittings and use a protruding clamp. The chamfered guide of block 21 and limit rod 22 allows for manual rotation of the upper and lower connecting components 1 until the engagement resistance increases significantly. Then, an adjustable wrench is used to apply force from the gap between the reinforcing ribs of the upper and lower connecting components 1 to complete the rotation engagement. If the main body of the connection is made of metal (such as 316L stainless steel), a zinc-based anti-corrosion coating with a thickness of 0.1-0.2mm can be sprayed onto the engagement area using a pneumatic spray gun with existing technology after installation. In addition to pressure testing after installation, a soap spraying method (spraying 10% concentration soap water onto the connection and observing whether bubbles are generated) can be used for initial leakage inspection. Finally, pipe clamps (existing standard parts) are used to fix the connection section of the connecting component 1 and the corrugated pipe and external pipe fittings on the preset bracket. The spacing between pipe clamps is set to 30-50cm to avoid the connection stability being affected by pipeline vibration.

[0030] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the claims.

Claims

1. A double-layer chamfered guide ring structure for the spigot end of a corrugated pipe, characterized in that, The device includes a symmetrically distributed and rotatably engaging connecting assembly (1). The connecting assembly (1) includes an upper connecting part (11) and a lower connecting part (12). The upper connecting part (11) has an external thread section (13) at its top end for connecting with external pipe fittings. The lower connecting part (12) has an internal thread section (14) at its bottom end for connecting with a corrugated pipe. The upper and lower connecting components (1) are staggered and rotated and engaged by mutually compatible engaging structures (2). The engaging structure (2) includes protruding blocks (21) symmetrically distributed on the upper and lower connecting components (1) and limiting rods (22) located between the protruding blocks (21) and corresponding to the protruding blocks (21). The protruding blocks (21) and the limiting rods (22) are adapted in shape. After the upper and lower connecting components (1) are engaged, a double-layer chamfered guide structure is formed for guiding and limiting. The chamfers of the guide structure are respectively set on the upper and lower end faces of the engaging part to play a guiding role during the rotation and engagement of the connecting components (1) and to limit the relative position of the connecting components (1) after engagement.

2. The double-layer chamfered guide ring structure for the corrugated pipe spigot end according to claim 1, characterized in that, The external thread section (13) of the upper connecting part (11) is cylindrical, and the outer surface is machined with uniformly distributed external threads. The connecting body of the lower part of the upper connecting part (11) is a polygonal columnar structure. The protruding card block (21) is set on the side of the polygonal columnar structure and distributed along the side of the polygon.

3. The double-layer chamfered guide ring structure for the corrugated pipe spigot end according to claim 2, characterized in that, The internal thread section (14) of the lower connecting part (12) is cylindrical, and the inner surface is machined with an internal thread that is compatible with the bellows. The connecting body of the upper part of the lower connecting part (12) is also a polygonal columnar structure. The limiting rod (22) is opened on the side of the polygonal columnar structure. The number and position of the limiting rod (22) correspond one-to-one with the protruding locking block (21) of the upper connecting component (1).

4. The double-layer chamfered guide ring structure for the corrugated pipe spigot end according to claim 3, characterized in that, The protruding block (21) is long and extends along the axial direction of the connecting component (1). Both the upper and lower end faces of the protruding block (21) are chamfered. The upper and lower end faces of the limiting rod (22) are also chamfered to match the chamfer of the protruding block (21), together forming the double-layer chamfered guide structure.

5. The double-layer chamfered guide ring structure for the corrugated pipe spigot end according to claim 1, characterized in that, The outer side wall of the connecting body of the upper and lower connecting components (1) is provided with reinforcing ribs. The reinforcing ribs are arranged along the axial direction of the connecting components (1) and are evenly distributed on the periphery of the connecting body.

6. The double-layer chamfered guide ring structure for the corrugated pipe spigot end according to claim 1, characterized in that, The external thread section (13) of the upper connecting part (11) is integrally formed with the connecting body, and the internal thread section (14) of the lower connecting part (12) is integrally formed with the connecting body. The connecting body is made of plastic or metal.

7. The double-layer chamfered guide ring structure for the corrugated pipe spigot end according to claim 1, characterized in that, After the upper and lower connecting components (1) are rotated and engaged, the gaps in the engaged parts can be filled with sealing strips. The sealing strips are adapted to the shape of the engaged parts and are used to enhance the sealing of the connection of the connecting components (1).

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