Pipeline connecting structure
By combining a transition joint, a push-in joint, an intermediate connector, a locking nut, and a locking ring, the problem of low efficiency and poor reusability of existing pipe joints for quick disassembly and assembly is solved, achieving a fast, secure, and well-sealed pipe connection.
Patent Information
- Application Number
- CN202520502383.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-03-20
AI Technical Summary
Existing pipe joints are inefficient in terms of quick installation and disassembly, and have poor reusability, making it difficult to meet the needs of modern industry for rapid maintenance and efficient operation of pipeline systems.
It adopts a combination structure of transition joint, push-in joint, intermediate connector, lock nut and lock ring, and realizes quick connection and disassembly of pipeline through threaded connection and rotational fit, and ensures the firmness and sealing of the connection through lock ring and sealing ring.
It enables quick disassembly and assembly of pipe connections, improves reusability, ensures the strength and sealing of connections, and meets the needs of modern industry for rapid maintenance and efficient operation of pipeline systems.
Smart Images
Figure CN223909035U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to pipeline connection technical field, concretely relates to a pipeline connection structure. BACKGROUND
[0002] The pipeline connector is a very important component in the pipeline system. At present, the commonly used pipeline connectors mainly include flange connection, sleeve connection, welding connection, threaded connection and the like. However, the existing pipeline connectors have low efficiency and poor reusability in quick disassembly and assembly, and it is difficult to meet the needs of modern industry for quick maintenance and efficient operation of the pipeline system. Therefore, it is of great significance to develop a new type of pipeline connector which is firm in connection, convenient in disassembly and assembly and good in reusability. SUMMARY
[0003] In order to solve the technical problems in the background art, the utility model provides a pipeline connection structure.
[0004] The utility model provides a pipeline connection structure, which comprises a transition joint, a push joint, an intermediate adapter, a locking nut and a locking ring, wherein:
[0005] The transition joint has an inner channel extending axially inside, and the transition joint is provided with an external thread at one end;
[0006] The push joint has a first end and a second end, and the first end of the push joint is provided with an internal thread and is threadedly connected with the external thread end of the transition joint;
[0007] The intermediate adapter has a first end and a second end, and an inner channel extending axially and penetrating the first end and the second end; the first end of the intermediate adapter is connected with the second end of the push joint and can rotate relatively in the circumferential direction, and the inner channel of the intermediate adapter is coaxial with and communicates with the inner channel of the push joint; the second end of the intermediate adapter is also provided with an external thread, and the end face of the second end is an inner inclined surface inclined towards the inside thereof;
[0008] The inner side of the end port of the locking nut is provided with an inner extension stopper, and the inner end face of the inner extension stopper is an inner inclined surface inclined towards the end port; the locking nut is threadedly assembled at the external thread end of the intermediate adapter, and the inner inclined surface on the inner extension stopper of the locking nut is opposite to the inner inclined surface of the intermediate adapter to form a V-shaped accommodating groove with the opening facing the inner side between the two inner inclined surfaces;
[0009] The locking ring is an open ring, and the locking ring is located in the V-shaped accommodating groove, and the two side surfaces of the locking ring are respectively matched with the corresponding inner ring surface inclined surfaces.
[0010] Preferably, the transition joint is provided with a sealing ring inside.
[0011] Preferably, the transition joint is internally provided with a ring groove around the inner wall of the externally threaded end, and the sealing ring is located in the ring groove and protrudes from the inner wall surface of the transition joint.
[0012] Preferably, the side wall of the advancing joint is provided with a flat cutting surface.
[0013] Preferably, the outer part of the first end of the intermediate adapter is provided with a ring clamping groove; the advancing joint is in a sleeve structure, and the inner side of the port of the second end of the advancing joint is provided with an inward flange; the second end of the advancing joint is sleeved on the first end of the intermediate adapter, and the inward flange is clamped into the ring clamping groove.
[0014] Preferably, the intermediate part of the intermediate adapter is provided with a limiting stop ring.
[0015] In the utility model, the transition joint, the advancing joint, the intermediate adapter, the locking nut and the locking ring are threaded and assembled with the advancing joint, so that the advancing joint can be tightened or loosened on the transition joint; the intermediate adapter is connected with the advancing joint and can rotate relative to the advancing joint, so that when the advancing joint moves axially, the intermediate adapter moves axially, and when the advancing joint rotates, the intermediate adapter does not rotate with it; the locking nut and the intermediate adapter are matched to fix the locking ring therebetween, the locking ring is arranged as an open ring, and the two side surfaces of the locking ring are matched with the intermediate adapter and the inclined surface of the locking nut, respectively; when the locking nut is tightened, the opening of the locking ring is contracted, and then the pipeline inserted into the locking ring is locked. When the pipeline is connected, the transition joint is installed at one end of the pipeline A in advance, the locking nut is loosened to make the locking ring enter a relaxed state, then the pipeline B to be connected is inserted from the end where the locking nut is located; when the pipeline B is inserted in place, the locking nut is tightened to lock the pipeline B with the locking ring; then, the advancing joint is tightened to pull the intermediate adapter together with the locking nut and the locking ring to move axially to the pipeline A, so as to be locked again to ensure the firmness of the connection and the sealing property of the butt joint end, avoid the problem of leakage, and the whole components can be quickly disassembled and assembled. BRIEF DESCRIPTION OF DRAWINGS
[0016] Fig. 1 The utility model provides a kind of structural schematic diagram of pipeline connecting structure;
[0017] Fig. 2 The utility model provides an exploded view of a pipeline connecting structure;
[0018] Fig. 3 The utility model provides a kind of sectional view of pipeline connecting structure. DETAILED DESCRIPTION
[0019] REFERENCE Figs. 1-3The utility model provides a pipeline connecting structure, include: transition joint 1, push joint 2, intermediate adapter 3, lock nut 4 and locking ring 5.
[0020] Transition joint 1 has the inner passage of axial through inside, and transition joint 1 one end is equipped with outer thread.
[0021] Intermediate adapter 3 has the first end and second end, and the inner passage of axial extension and through its first end and second end. The first end of intermediate adapter 3 is connected with the second end of push joint 2 and can rotate relatively in the circumference, and the inner passage of intermediate adapter 3 and push joint 2 is coaxial and connected, specifically: the outside of the first end of intermediate adapter 3 is equipped with annular clamping groove; push joint 2 is sleeve structure, and the inner side of the port of second end is equipped with inner flange; the second end of push joint 2 is sleeved in the first end of intermediate adapter 3, and inner flange is clamped into annular clamping groove. So that intermediate adapter 3 can move axially with push joint 2, and not rotate with it.
[0022] The second end of intermediate adapter 3 is also equipped with outer thread, and the end face of second end is the inner inclined surface that inclines to its inside. The inner side of one end port of lock nut 4 is equipped with inner extension stop edge, and the inner end face of inner extension stop edge is the inner inclined surface that inclines to the end port where it is. Lock nut 4 is threaded assembled in the outer threaded end of intermediate adapter 3, and the inner inclined surface on the inner extension stop edge of lock nut 4 is opposite to the inner inclined surface of intermediate adapter 3 to form V-shaped accommodating groove with the opening towards the inside between the two inner inclined surfaces. Locking ring 5 is open ring, and locking ring 5 is located in V-shaped accommodating groove, and the two side ring faces of locking ring 5 are matched with the corresponding inner ring face inclined surface respectively. When lock nut 4 is screwed, the opening of locking ring 5 is shrunk, and then the pipeline inserted in its inside is locked.
[0023] When carrying out pipeline connection, transition joint 1 is installed at one end of pipeline A in advance, and lock nut 4 is loosened, so that locking ring 5 enters the relaxed state, then pipeline B to be connected is inserted from the end where lock nut 4 is located; when pipeline B is inserted in place, lock nut 4 is tightened to lock pipeline B with locking ring 5; then, push joint 2 is tightened again to pull intermediate adapter 3 together with lock nut 4 and locking ring 5 to move axially to pipeline A with push joint 2, to carry out secondary locking, to ensure the firmness of connection and the sealing property of butt joint end, and the whole structure is convenient to disassemble and assemble quickly.
[0024] In addition, the utility model also sets up sealing ring 6 inside transition joint 1, specifically: transition joint 1 is located the inside of its outer threaded end and is equipped with the annular groove that surrounds its inner wall, and sealing ring 6 is located in annular groove and is higher than the inner wall surface of transition joint 1. To increase the sealing effect of pipeline B that is connected.
[0025] In the embodiment, the side wall of the advancing joint 2 is provided with a flat cutting surface 21 to facilitate rotation of the advancing joint 2.
[0026] In the embodiment, the middle part of the intermediate adapter 3 is provided with a limiting stop ring 31.
[0027] As can be seen from the above, in the utility model, the transition joint 1, the advancing joint 2, the intermediate adapter 3, the locking nut 4 and the locking ring 5 are provided, and the advancing joint 2 is threadedly assembled with the transition joint 1, so that the advancing joint 2 can be screwed or loosened on the transition joint 1; the intermediate adapter 3 is connected with the advancing joint 2 and can relatively rotate with the advancing joint 2, so that when the advancing joint 2 moves in the axial direction, the intermediate adapter 3 moves in the axial direction, and when the advancing joint 2 rotates, the intermediate adapter 3 does not rotate with the advancing joint 2; the locking nut 4 and the intermediate adapter 3 cooperate to fix the locking ring 5 between them, and the locking ring 5 is provided as an open ring, and the two side surfaces of the locking ring 5 are respectively matched with the inclined surface of the intermediate adapter 3 and the locking nut 4; when the locking nut 4 is screwed, the opening of the locking ring 5 is pushed to shrink, and then the pipeline inserted in the locking ring 5 is locked. The advancing joint 2 is pulled by the locking ring 5 at the rear end of the pipeline to continue advancing the pipeline, so as to be locked again, ensure the firmness of connection, and guarantee the sealing property of the butt joint end, avoid the problem of leakage, and the whole components can be quickly disassembled and assembled.
[0028] The above only describes the preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the technical field according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model can be equivalently replaced or changed, and all should be covered in the protection scope of the utility model.
Claims
1. A pipe connection structure, characterized in that, The utility model relates to a transition joint (1), a propelling joint (2), an intermediate adapter (3), a locking nut (4) and a locking ring (5), wherein: The transition joint (1) has an inner channel extending axially through the inside of the transition joint (1), and the transition joint (1) has an outer thread at one end; The propelling joint (2) has a first end and a second end, and the first end of the propelling joint (2) has an inner thread and is threadedly connected to the outer threaded end of the transition joint (1); The intermediate adapter (3) has a first end and a second end, and an inner channel extending axially through the first end and the second end; the first end of the intermediate adapter (3) is connected to the second end of the propelling joint (2) and can rotate relative to the propelling joint (2) in the circumferential direction, and the inner channel of the intermediate adapter (3) is coaxial with and connected to the inner channel of the propelling joint (2); the second end of the intermediate adapter (3) also has an outer thread, and the end face of the second end is an inner inclined surface inclined towards the inside of the second end; The locking nut (4) has an inner extended stopper on the inner side of the end port of one end, and the inner end face of the inner extended stopper is an inner inclined surface inclined towards the end port where the inner extended stopper is located; the locking nut (4) is threadedly assembled at the outer threaded end of the intermediate adapter (3), and the inner inclined surface on the inner extended stopper of the locking nut (4) is opposite to the inner inclined surface of the intermediate adapter (3) to form a V-shaped accommodating groove with the opening facing the inside between the two inner inclined surfaces; The locking ring (5) is an open ring, and the locking ring (5) is located in the V-shaped accommodating groove, and the two side surfaces of the locking ring (5) are respectively matched with the corresponding inner ring surface inclined surfaces. The transition joint (1) has a sealing ring (6) inside.
2. The pipe connection structure according to claim 1, characterized by The transition joint (1) has a ring groove around the inner wall of the transition joint (1) at the inner threaded end of the transition joint (1), and the sealing ring (6) is located in the ring groove and protrudes from the inner wall surface of the transition joint (1).
3. The pipe connection structure according to claim 2, characterized by The side wall of the propelling joint (2) has a flat cutting surface (21).
4. The pipe connection structure according to claim 1, wherein The intermediate adapter (3) has a limiting stop ring (31) at the middle part of the intermediate adapter (3).
5. The pipe connection structure according to claim 1, wherein The first end of the intermediate adapter (3) has an annular clamping groove outside, the propelling joint (2) has a sleeve structure, and the inner side of the end port of the second end of the propelling joint (2) has an inner turned edge; the second end of the propelling joint (2) is sleeved on the first end of the intermediate adapter (3), and the inner turned edge is clamped into the annular clamping groove.
6. The pipe connection structure according to any one of claims 1 to 5, characterized by