Leak-proof gas pipeline joint connecting structure
By using a corrugated tooth type and a reverse clamp of a locking ring in the gas pipeline joint for locking, the problem of complex connections and leakage risks in the prior art is solved, and the rapid connection and efficient sealing effect in narrow environments are achieved.
Patent Information
- Application Number
- CN202421623225.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-10
- Publication Date
- 2025-05-09
- Estimated Expiration
- 2034-07-10
AI Technical Summary
Existing gas pipeline joints have complexity and leakage risks during connection, especially in tight environments that are difficult to connect quickly and ensure a sealed effect.
The lock-blocking method is used to snap with the corrugated tooth type and the counter clamp of the lock-blocking ring for clamping. By inserting the corrugated tube into the tee tube and rotating the lock-blocking ring and seal with the end cap, the lock-blocking ring and sealing effect can be achieved quickly.
The fast connection of gas pipeline joints is achieved in a narrow environment, without rotating alignment threads, and the locking ring and seal are tightened by extrusion, which significantly improves the sealing effect and prevents leakage.
Smart Images
Figure CN222848836U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of gas pipeline joints, and in particular to a leakage-proof gas pipeline joint connection structure. Background Art
[0002] The gas pipe joint is a component used to connect two gas pipes. The function of the joint is to ensure a tight connection between the pipes, prevent gas leakage, and ensure the safe operation of the pipeline system.
[0003] Gas pipeline joints usually include different types such as threaded joints and flange joints. Currently, the more common type used in households is the three-way threaded joint, and the tee is used to connect two sections of gas pipelines and valves respectively. When connecting gas pipeline joints, for example, when using threaded joints, it is necessary to use the threaded joint to screw into the pipe thread to match the thread. In this process, due to the screw-in connection method, the accuracy of thread connection is involved, and forced screwing should be avoided.
[0004] Furthermore, when flange joints are used, the flange plate needs to be tightened at multiple points, and the installation also has certain inconveniences. Limited by the installation environment of common gas pipes, the above-mentioned connection structures all have certain complex problems. In this regard, a leak-proof gas pipeline joint connection structure is proposed. Utility Model Content
[0005] In view of the deficiencies in the prior art, the present application provides a leak-proof gas pipeline joint connection structure, which has the advantages of being convenient for quick connection in a narrow environment and improving the sealing effect.
[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a leak-proof gas pipeline joint connection structure, comprising a main pipe and a tee pipe located on the main pipe, the tee pipe is externally plugged with a gas pipe, an end cap is installed on the external thread of the tee pipe, a ferrule is fixedly installed on the end of the end cap, and a locking structure for locking the corrugated pipe is provided between the ferrule and the tee pipe;
[0007] The locking structure comprises a locking ring, a surface of which is provided with a notch, and an inner wall of the locking ring is integrally extended with a reverse clamp, and the tooth profile direction of the bellows corresponds to the reverse clamp.
[0008] Furthermore, there are three three-way pipes, which are respectively connected to the two ends and the side wall of the main pipe.
[0009] Furthermore, the outer diameter of the corrugated pipe at the end of the gas pipe should be smaller than the inner diameter of the three-way pipe.
[0010] Furthermore, a sealing structure for preventing leakage of the gas pipe is provided between the end cap and the tee pipe, and the sealing structure includes a sealing member and a gasket blocked between the tee pipe and the ferrule.
[0011] Furthermore, the sealing member includes an insertion end and an extrusion end fixedly connected to the insertion end, the insertion end faces the tee pipe, and the outer diameter of the insertion end corresponds to the inner diameter of the tee pipe.
[0012] Furthermore, the locking ring is in an arc shape in a direction away from the tee pipe, and the inner diameter of the hoop is smaller than the unfolded size of the locking ring.
[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:
[0014] The leak-proof gas pipeline joint connection structure replaces the original three-way pipe connection method of connecting the gas pipe end with a threaded tooth profile and the outside of the main pipe with a locking method that uses a reverse clamp with a corrugated tooth profile and a locking ring for clamping. It is easy to install and does not require rotation to align the threads. It only needs to insert the gas pipe end into the three-way pipe to achieve pre-fixation. Secondly, the locking ring clamped on the outside of the corrugated pipe can be squeezed and tightened by rotating the end cap, so that the locking ring shrinks to complete the fixation of the gas pipe. Since a seal is built in between the locking ring and the three-way pipe, the sealing effect of the seal can be further enhanced under the extrusion effect, thereby achieving the purpose of leak prevention. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the overall structure of this application;
[0016] Figure 2 This is the structural explosion diagram of the three-way pipe connected to the gas pipe in this application;
[0017] Figure 3 This is a structural stereogram of the locking ring of this application.
[0018] In the figure: 1. main pipe; 2. tee pipe; 3. gas pipe; 4. end cap; 5. ferrule; 6. bellows; 7. locking ring; 8. gasket; 9. extrusion end; 10. insertion end; 11. notch; 12. reverse clamp. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0020] See also Figure 1-3 In this embodiment, a leak-proof gas pipeline joint connection structure includes a main pipe 1 and a three-way pipe 2 located on the main pipe 1, wherein there are three three-way pipes 2, which are respectively connected to the two ends and the side wall of the main pipe 1, so that the main pipe 1 cooperates with the three-way pipes 2 to connect three ports.
[0021] In this embodiment, the exterior of the three-way pipe 2 is provided with external threads, and the gas pipe 3 is plugged into the exterior of the three-way pipe 2. It is worth noting that a corrugated pipe 6 is fixed inside the gas pipe 3 to facilitate the connection of the gas pipe 3.
[0022] In a specific implementation, the outer diameter of the bellows 6 at the end of the gas pipe 3 should be smaller than the inner diameter of the tee pipe 2 , so that the bellows 6 can be directly inserted into the tee pipe 2 for quick connection.
[0023] It should be noted that an end cap 4 is installed on the external thread of the tee pipe 2 , a ferrule 5 is fixedly installed on the end of the end cap 4 , and a locking structure for locking the corrugated pipe 6 is provided between the ferrule 5 and the tee pipe 2 .
[0024] With such a design, after the bellows 6 is inserted into the tee pipe 2 , the bellows 6 and the tee pipe 2 can be connected without rotating.
[0025] In this embodiment, the locking structure comprises a locking ring 7 , and a notch 11 is formed on the surface of the locking ring 7 .
[0026] Specifically, the locking ring 7 is an open ring due to the presence of the notch 11 , and can be deformed by external stress when the locking ring 7 itself is flexible, thereby tightening the bellows 6 .
[0027] In this embodiment, a reverse clamp 12 is integrally extended on the inner wall of the locking ring 7 , and the tooth profile direction of the bellows 6 corresponds to the reverse clamp 12 .
[0028] Such a design enables the bellows 6 to be smoothly inserted into the locking ring 7 in the direction of the reverse clamp 12 , and when being pulled out in the reverse direction, the reverse clamp 12 can abut against the tooth profile of the bellows 6 to limit the withdrawal of the gas pipe 3 .
[0029] It should be noted that a sealing structure for preventing leakage of the gas pipe 3 is also provided between the end cap 4 and the tee pipe 2 .
[0030] In a specific implementation, by rotating the end cap 4 , the end cap 4 can squeeze the ferrule 5 , thereby enhancing the sealing effect of the sealing structure.
[0031] In this embodiment, the connection method of the original gas pipe 3 with a threaded tooth profile and the three-way pipe 2 for external connection to the main pipe 1 is replaced by a locking method using a reverse clamp 12 with a corrugated tooth profile and a locking ring 7 for clamping. It is easy to install and does not require rotation to align the threads. It only needs to insert the end of the gas pipe into the three-way pipe for pre-fixation.
[0032] The sealing structure in this embodiment includes a sealing member and a gasket 8 blocked between the tee pipe 2 and the ferrule 5 . The gasket 8 can improve the contact and extrusion stability between the sealing member and the locking ring 7 .
[0033] In a specific implementation, the locking ring 7 clamped on the outside of the bellows 6 can be squeezed and tightened by rotating the end cap 4, so that the locking ring 7 shrinks to fix the gas pipe 3. Since there is a seal built between the locking ring 7 and the tee pipe 2, the sealing effect of the seal can be further enhanced under the action of squeezing, thereby achieving the purpose of preventing leakage.
[0034] In this embodiment, the sealing member includes an insertion end 10 and an extrusion end 9 fixedly connected to the insertion end 10, the insertion end 10 faces the tee pipe 2, and the outer diameter of the insertion end 10 corresponds to the inner diameter of the tee pipe 2, so that the insertion end 10 can fit tightly against the inner wall of the tee pipe 2 when extruded into the tee pipe 2, thereby improving the sealing performance.
[0035] It should be noted that the diameter of the extrusion end 9 is larger than the port diameter of the tee pipe 2 , and when extruded, the tee pipe 2 can be prevented from leaking by the extrusion end 9 being attached to the surface of the tee pipe 2 .
[0036] It is worth noting that the locking ring 7 is arc-shaped in the direction away from the tee pipe 2, and the inner diameter of the ferrule 5 is smaller than the unfolded size of the locking ring 7, so that the ferrule 5 can uniformly apply extrusion force to the locking ring 7.
[0037] The working principle of the above embodiment is:
[0038] By sequentially abutting the locking ring 7, gasket 8 and seal on one end of the tee 2, the end cap 4 together with the ferrule 5 are rotated and installed on the tee 2 from the outside of the tee 2, so that the locking ring 7, gasket 8 and seal structure are pre-fixed. At this time, it is only necessary to insert the bellows 6 on the end of the gas pipe 3 corresponding to the ferrule 5, so that the bellows 6 continuously passes through the locking ring 7, gasket 8 and seal and is inserted into the inside of the tee 2. At this time, it is only necessary to rotate the end cap 4 located outside the tee 2. When the end cap 4 rotates relative to the tee pipe 2, it extends toward the square of the main pipe 1. The hoop 5 connected to the end cap 4 squeezes the locking ring 7 between the end cap 4 and the tee pipe 2. The locking ring 7 squeezes the extrusion end 9 of the seal, so that the insertion end 10 of the seal is inserted into the interior of the tee pipe 2 to complete tight leakage prevention. Under continuous pressure, the locking ring 7 gradually shrinks, and the reverse clamp 12 on the inner wall of the locking ring 7 is tightly attached to the outer wall tooth profile of the corrugated pipe 6, thereby realizing a convenient connection of the gas pipe 3 relative to the pipeline joint.
[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.
[0040] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A leak-proof gas pipeline joint connection structure, comprising a main pipe (1) and a three-way pipe (2) located on the main pipe (1), characterized in that: The three-way pipe (2) is externally plugged with a gas pipe (3); an end cap (4) is installed on the external thread of the three-way pipe (2); a ferrule (5) is fixedly installed on the end of the end cap (4); a corrugated pipe (6) is fixed inside the gas pipe (3); and a locking structure for locking the corrugated pipe (6) is provided between the ferrule (5) and the three-way pipe (2); The locking structure comprises a locking ring (7), a surface of the locking ring (7) being provided with a notch (11), an inner wall of the locking ring (7) being provided with an integrally extending reverse clamp (12), and a tooth profile direction of the bellows (6) corresponding to the reverse clamp (12).
2. The anti-leakage gas pipeline joint connection structure according to claim 1, characterized in that: There are three three-way pipes (2) in total, which are respectively connected to the two ends and the side wall of the main pipe (1).
3. The anti-leakage gas pipeline joint connection structure according to claim 1, characterized in that: The outer diameter of the corrugated pipe (6) at the end of the gas pipe (3) should be smaller than the inner diameter of the three-way pipe (2).
4. The anti-leakage gas pipeline joint connection structure according to claim 1, characterized in that: A sealing structure for preventing leakage of the gas pipe (3) is also provided between the end cap (4) and the tee pipe (2), the sealing structure comprising a sealing member and a gasket (8) blocked between the tee pipe (2) and the ferrule (5).
5. The anti-leakage gas pipeline joint connection structure according to claim 4, characterized in that: The sealing member comprises an insertion end (10) and an extrusion end (9) fixedly connected to the insertion end (10), the insertion end (10) faces the tee pipe (2), and the outer diameter of the insertion end (10) corresponds to the inner diameter of the tee pipe (2).
6. The anti-leakage gas pipeline joint connection structure according to claim 1, characterized in that: The locking ring (7) is in an arc shape in a direction away from the three-way pipe (2), and the inner diameter of the ferrule (5) is smaller than the unfolded size of the locking ring (7).