Pipeline anti-loose butt joint
Through the combined design of the annular part, conical part, sealing ring and clamping convex ring, the problems of poor sealing and looseness in pipeline connections are solved, stable connection and sealing effects are achieved, and the plugging process is simplified.
Patent Information
- Application Number
- CN202422230914.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-09-12
AI Technical Summary
Existing threaded joints are prone to poor sealing performance and loosening over time due to machining errors or insufficient preloading force in pipeline connections, which affects the conveying effect.
The design of annular part, a tapered part, a sealing ring and a clamping convex ring is adopted. The clamping convex ring is snapped into the clamping groove to achieve stable connection of the pipe, and the sealing ring is used to ensure sealing. The step surface of the tapered part reminds the plug-in to complete the plug-in.
Effectively prevent pipes from loosening, ensuring sealing, avoiding liquid leakage, and reducing wear of clamping convex rings, simplifying the plugging process.
Smart Images
Figure CN223120932U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a docking head, in particular to a pipeline anti-loosening docking head. Background Art
[0002] Generally, a pipeline refers to a device composed of pipes, pipe connectors, valves and other components for transporting gas, liquid or fluid with solid particles. These pipeline systems can be used to transport various fluids such as water, steam, petroleum, natural gas and others. A pipeline docking head is a key component used to connect two sections of pipelines to achieve the sealing of the pipeline system and the continuous transmission of fluid.
[0003] The commonly used existing pipeline docking head is a threaded docking head. The threaded docking head is a component that connects pipelines by the mutual screwing of internal and external threads. Due to the high precision requirements for thread processing dimensions or accuracy, if the thread processing is poor, there are burrs or dimensional deviations, which will affect the sealing effect of the pipeline even when using sealing materials at the pipeline docking joint. Moreover, if the pre-tightening force during the initial docking of pipelines is insufficient, or the threads are not correctly engaged, it will lead to poor initial sealing of the pipeline connection and looseness over time, bringing inconvenience to the transportation operation inside the pipeline. Summary of the Utility Model
[0004] In order to overcome the above-mentioned disadvantages of the prior art, the technical problem to be solved is: to provide a pipeline anti-loosening docking head.
[0005] The technical implementation solution of the utility model is: a pipeline anti-loosening docking head, which includes pipeline I and pipeline II. Pipeline I and pipeline II are connected through a docking head. The docking head includes an annular part, a conical part, a sealing ring and a clamping convex ring. The left end face of pipeline I is connected with the annular part, the left side face of the annular part is connected with the conical part, the conical part indents to the left, a circular clamping groove is formed in the right part of the outer side face of the conical part, a circular sealing groove is formed in the left part of the outer side face of the conical part, the sealing ring is sleeved in the sealing groove, an insertion groove is formed in the right end face of pipeline II, the left side face of the insertion groove is inserted and fitted with the left side face of the conical part, and an annular clamping convex ring is installed in the insertion groove. After pipeline I and pipeline II are inserted, the clamping convex ring is clamped into the clamping groove.
[0006] In one embodiment, the outer diameter of the left side face of the insertion groove is greater than the inner diameter of pipeline II.
[0007] In one embodiment, the angle at which the conical part indents to the left is greater than 5 degrees and less than 15 degrees.
[0008] In one embodiment, the edges on both the left and right sides of the clamping convex ring are rounded or the right side is rounded and the left side is a right angle.
[0009] In one embodiment, after pipeline I and pipeline II are inserted, the highest point of the left side wall of the clamping groove is higher than the lowest point of the clamping convex ring.
[0010] Advantages of the present utility model: By clamping the clamping convex ring in the clamping groove, the present utility model can prevent the pipeline I and the pipeline II from falling off. The sealing ring can play a sealing role to prevent liquid from leaking when flowing through the pipeline. The tapered portion can be abutted against the step surface on the left side of the insertion groove to remind the plugging personnel that the pipeline has been inserted completely. The edge of the clamping convex ring is rounded to prevent wear of the edge of the clamping convex ring caused by the insertion of the tapered portion, and at the same time, it can also make the tapered portion better inserted. Description of the Drawings
[0011] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model.
[0012] Figure 2 It is an exploded view of the present utility model.
[0013] Figure 3 It is a cross-sectional view of the present utility model.
[0014] In the reference numerals of the drawings: 1 - pipeline I, 2 - pipeline II, 3 - annular portion, 4 - tapered portion, 5 - clamping groove, 6 - sealing groove, 7 - sealing ring, 8 - insertion groove, 9 - clamping convex ring. Specific Embodiments
[0015] The following further illustrates the technical solution with specific embodiments. It should be noted that: The words indicating directions such as up, down, left, and right mentioned in this article are only for the positions of the shown structures in the corresponding drawings. The serial numbers assigned to the components in this article, for example: the first, the second, etc., are only used to distinguish the described objects and do not have any sequential or technical meanings. And the connections and couplings mentioned in this application, unless otherwise specified, all include direct and indirect connections (couplings).
[0016] Embodiment: A pipeline anti-loosening docking head, as Figures 1 - 3As shown, it includes a pipeline Ⅰ1 and a pipeline Ⅱ2, which are connected by a butt joint. The butt joint includes an annular portion 3, a conical portion 4, a sealing ring 7 and a clamping convex ring 9. The left end face of the pipeline Ⅰ1 is connected with the annular portion 3, and the inner diameter of the annular portion 3 is consistent with that of the pipeline Ⅱ2. The left side of the annular portion 3 is connected with the conical portion 4. The outer surface of the conical portion 4 is indented to the left, and the angle of the conical portion 4 indented to the left is greater than 5 degrees and less than 15 degrees. The conical portion 4 is annular, and the inner diameter of the conical portion 4 is consistent with the inner diameter of the annular portion 3. An annular clamping groove 5 is provided on the right side of the outer side of the conical portion 4, and an annular A sealing groove 6 and a sealing ring 7 are sleeved in the sealing groove 6. An insertion groove 8 is provided on the right end face of the pipe Ⅱ2. The shape of the insertion groove 8 is consistent with the combined annular portion 3 and the tapered portion 4. The outer diameter of the left side of the insertion groove 8 is larger than the inner diameter of the pipe Ⅱ2. The left side of the insertion groove 8 fits with the left side of the tapered portion 4 after being plugged in. An annular clamping convex ring 9 is installed in the insertion groove 8. After the pipes Ⅰ1 and Ⅱ2 are plugged in, the highest point of the left side wall of the clamping groove 5 is higher than the lowest point of the clamping convex ring 9. The edges on the left and right sides of the clamping convex ring 9 are chamfered or the right side is chamfered, and the left side is a right angle. After the pipes Ⅰ1 and Ⅱ2 are plugged in, the clamping convex ring 9 is clamped into the clamping groove 5.
[0017] When it is necessary to dock pipe Ⅰ1 and pipe Ⅱ2, first put the sealing ring 7 into the sealing groove 6, and then insert the side of pipe Ⅱ2 with the annular portion 3 and the tapered portion 4 into the side of the insertion groove 8 of pipe Ⅰ1, until the left side of the tapered portion 4 fits with the left side of the insertion groove 8. At this time, the clamping convex ring 9 is clamped in the clamping groove 5 to prevent pipe Ⅱ2 from falling off, because the tapered portion 4 allows pipe Ⅱ2 to better dock with pipe Ⅰ1, and the outer diameter of the left side of the insertion groove 8 is larger than the inner diameter of pipe Ⅱ2, so that the tapered portion 4 can be resisted by the step surface on the left side of the insertion groove 8, and at the same time remind the splicing personnel that the pipe has been inserted. The edge of the clamping convex ring 9 is rounded to prevent the edge of the clamping convex ring 9 from being worn due to the insertion of the tapered portion 4, and also to allow the tapered portion 4 to be better inserted.
[0018] The above description is only an example of the implementation of the present invention and is not intended to limit the present invention. Any equivalent replacement made within the principle of the present invention shall be included in the protection scope of the present invention. The contents not elaborated in the present invention belong to the existing technology known to the technicians in this professional field.
Claims
1. A pipe anti-loosening docking joint, comprising a pipe Ⅰ (1) and a pipe Ⅱ (2), the pipe Ⅰ (1) and the pipe Ⅱ (2) are connected through a docking joint, and the characteristics are as follows: The docking head includes an annular part (3), a conical part (4), a sealing ring (7) and a clamping convex ring (9). The left end face of the pipeline Ⅰ (1) is connected with the annular part (3), the left side face of the annular part (3) is connected with the conical part (4), the conical part (4) indents to the left, a circular clamping groove (5) is formed in the right part of the outer side face of the conical part (4), a circular sealing groove (6) is formed in the left part of the outer side face of the conical part (4), the sealing ring (7) is sleeved in the sealing groove (6), an insertion groove (8) is formed in the right end face of the pipeline Ⅱ (2), the left side face of the insertion groove (8) is in fit connection with the left side face of the conical part (4) after insertion, a ring-shaped clamping convex ring (9) is installed in the insertion groove (8), and after the pipeline Ⅰ (1) and the pipeline Ⅱ (2) are inserted, the clamping convex ring (9) is clamped into the clamping groove (5).
2. The pipe anti-loosening docking head according to claim 1, characterized in that: The outer diameter of the left side face of the insertion groove (8) is larger than the inner diameter of the pipeline Ⅱ (2).
3. The pipe anti-loosening docking head according to claim 2, characterized in that: The angle at which the conical part (4) indents to the left is greater than 5 degrees and less than 15 degrees.
4. The pipe anti-loosening docking head according to claim 3, characterized in that: The edges on both the left and right sides of the clamping convex ring (9) are rounded or the right side is rounded and the left side is a right angle.
5. The pipe anti-loosening docking head according to claim 4, characterized in that: After the pipeline Ⅰ (1) and the pipeline Ⅱ (2) are inserted, the highest point of the left side wall of the clamping groove (5) is higher than the lowest point of the clamping convex ring (9).