A quick-release and quick-assembly joint mechanism for fluid pipes

Abstract

The utility model relates to fluid pipeline joint technical field, concretely is a kind of fluid pipeline quick-release quick-assembly joint mechanism, solve the fluid pipeline joint more through thread, flange bolt and connect fixed, when installing or disassembling replacement, it is more cumbersome to operate, it is not conducive to maintenance, replacement problem.A kind of fluid pipeline quick-release quick-assembly joint mechanism, including two fluid pipeline butt joint end pipes, two the fluid pipeline butt joint end pipe position symmetry, and two fluid pipeline butt joint end pipe all include butt joint ring, the surface of two the butt joint ring mutually towards is all annular array fixed with multiple clamping pieces, the clamping piece is composed of two upper and lower symmetrical connecting pieces.The utility model is after releasing the restriction of limiting plug-in board to rotating ring, rotating ring is rotated, realizes the separation of fluid pipeline butt joint end pipe and connecting end pipe, shortens the disassembly time of joint mechanism, improves the assembly and maintenance, replacement efficiency of staff to the joint mechanism of fluid pipeline.

Description

Technical Field

[0001] This invention relates to the field of fluid pipeline joint technology, specifically a quick-release and quick-installation joint mechanism for fluid pipelines. Background Technology

[0002] Fluid pipelines, also known as fluid pipes, are steel pipes with a hollow cross-section and no weld seams from beginning to end. Steel pipes with hollow cross-sections are widely used as pipelines for transporting fluids such as oil, natural gas, coal gas, water, and certain solid materials. Compared with solid steel materials such as round steel, steel pipes are lighter in weight while maintaining the same bending and torsional strength, making them an economical cross-section steel material. They are widely used in the manufacture of structural components and mechanical parts, such as oil drill pipes, automobile drive shafts, bicycle frames, and steel scaffolding used in construction.

[0003] Connecting fluid pipes to each other requires the use of joints or adapters. These components used to connect two or more fluid pipes are collectively referred to as fluid pipe joint mechanisms. When fluid pipe joint mechanisms are connected to fluid pipes, seals are usually used to seal the connection.

[0004] However, existing fluid pipeline joints are mostly connected and fixed by threads and flange bolts, which are cumbersome to install or disassemble and replace, and are not conducive to maintenance and replacement. Therefore, they do not meet the current needs. In response, we have proposed a quick-disassembly and quick-installation joint mechanism for fluid pipelines. Summary of the Invention

[0005] The purpose of this invention is to provide a quick-connect and quick-disconnect joint mechanism for fluid pipelines, so as to solve the problems mentioned in the background art, that fluid pipeline joints are mostly connected and fixed by threads and flange bolts, which makes the operation cumbersome and not conducive to maintenance and replacement when installing or disassembling.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a quick-release and quick-installation connector mechanism for fluid pipelines, comprising two fluid pipeline docking end pipes, the two fluid pipeline docking end pipes being symmetrically positioned, and each fluid pipeline docking end pipe including a docking ring, the surfaces of the two docking rings facing each other being fixed with a plurality of snap-fit ​​components in a circular array, the snap-fit ​​component being composed of two vertically symmetrical connecting pieces, the outer surface of the connecting piece being provided with an anti-detachment protrusion, the anti-detachment protrusion being triangular;

[0007] An intermediate connecting bellows is provided between the two docking rings. Both ends of the intermediate connecting bellows are fixed with connecting end tubes. Each connecting end tube includes an assembly ring. One end of the assembly ring is detachably inserted into the docking ring. The end of the assembly ring that contacts the docking ring has multiple positioning grooves distributed in a circular array. An installation ring groove is provided in the middle of the assembly ring. The positioning groove communicates with the installation ring groove. The connecting piece fixed to the end face of the docking ring passes through the positioning groove and enters the inner side of the installation ring groove.

[0008] Preferably, the end of the docking ring facing the fluid pipe is provided with a positioning ring groove, and the outer surface of this end of the docking ring is provided with a plurality of screw mounting holes arranged in a circular array.

[0009] Preferably, a pointed screw is detachably installed on the inner side of the screw mounting hole via threads, and a sealing ring is provided on the inner side of the positioning ring groove.

[0010] Preferably, a sealing ring groove is provided on the outer side of the end where the assembly ring connects to the docking ring, and a sealing ring is filled on the inner side of the sealing ring groove, wherein the cross-section of the sealing ring is L-shaped.

[0011] Preferably, a rotating ring is rotatably installed on the inner side of the mounting ring groove. The rotating ring includes an upper splicing arc strip and a lower splicing arc strip. The ends of the upper splicing arc strip and the lower splicing arc strip are attached to each other and are symmetrically positioned vertically. The end faces of the upper splicing arc strip and the lower splicing arc strip facing the docking ring are provided with arc grooves. The end of the connecting piece passes through the positioning groove and enters the inner side of the arc groove.

[0012] Preferably, the inner side of the arc groove is arranged in a circular array with multiple rotating plug blocks. Each rotating plug block includes two pressing blocks. The two pressing blocks are symmetrically positioned vertically. The pressing blocks are in contact with the anti-detachment protrusions on the outer surface of the connecting piece, and the surface of the pressing blocks facing the anti-detachment protrusions has a V-shaped structure.

[0013] Preferably, both ends of the upper and lower splicing arc strips are provided with snap-fit ​​grooves, and splicing pieces are detachably installed between the ends of the upper and lower splicing arc strips. A snap-fit ​​block is fixed on the inner surface of the splicing piece, and the snap-fit ​​block is slidably snapped into the inside of the snap-fit ​​groove.

[0014] Preferably, a limiting groove is provided in the middle of the upper surface of the upper splicing arc strip, and a sliding storage groove is provided in the middle of the upper surface of the assembly ring. The sliding storage groove and the limiting groove are positioned correspondingly and have the same width.

[0015] Preferably, a limiting plug plate is slidably installed inside the sliding storage groove, one end of the limiting plug plate is slidably engaged inside the limiting slot, both inner walls of the sliding storage groove are provided with limiting grooves, and both sides of the limiting plug plate are fixed with sliding strips, which are slidably engaged inside the limiting grooves.

[0016] Preferably, a filling block is also installed on the inner side of the sliding storage groove, and two trapezoidal disassembly protrusions are fixedly provided on the upper surface of the filling block.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. After the limiting plug plate restricts the rotating ring, the present invention rotates the rotating ring to separate the fluid pipeline docking end pipe from the connecting end pipe, shortening the disassembly time of the joint mechanism and improving the efficiency of workers in assembling, maintaining and replacing the joint mechanism of the fluid pipeline.

[0019] 2. This invention restricts the position of the rotating ring by sliding the limiting plug plate into the sliding storage groove and the limiting slot, so that the rotating ring cannot rotate without external intervention, thus ensuring the structural stability of the fluid pipeline docking end pipe and the connecting end pipe after connection. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 for Figure 1 Enlarged view of the structure at point A in the middle;

[0022] Figure 3 This is a schematic diagram of the structure of the fluid pipeline docking end pipe of the present invention;

[0023] Figure 4 This is a schematic diagram of the connecting end tube of the present invention;

[0024] Figure 5 This is a schematic diagram of the rotating ring structure of the present invention;

[0025] Figure 6 for Figure 5 Enlarged view of the structure at point B;

[0026] Figure 7 This is a schematic diagram of the structure of the limiting plug plate of the present invention;

[0027] Figure 8 This is a schematic cross-sectional view of the assembly ring of the present invention;

[0028] Figure 9 This is a schematic diagram showing the connection between the splicing piece of the present invention and the upper and lower splicing arc strips.

[0029] In the diagram: 1. Fluid pipeline docking end pipe; 101. Docking ring; 102. Positioning ring groove; 103. Screw mounting hole; 104. Sealing ring; 105. Connecting piece; 106. Anti-detachment protrusion; 2. Connecting end pipe; 201. Assembly ring; 202. Mounting ring groove; 203. Sealing ring groove; 204. Positioning groove; 205. Sealing ring; 206. Sliding storage groove; 27. Limiting slide groove; 3. Intermediate connecting corrugated pipe; 4. Rotating ring; 401. Upper splicing arc strip; 402. Lower splicing arc strip; 403. Splicing piece; 404. Arc groove; 405. Extrusion block; 406. Limiting slot; 407. Snap-fit ​​block; 408. Snap-fit ​​groove; 5. Limiting insertion plate; 6. Filler block; 7. Disassembly protrusion; 8. Sliding strip. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0031] like Figure 1 and Figure 3 As shown, a quick-release and quick-installation connector mechanism for fluid pipelines includes two fluid pipeline docking end pipes 1, which are symmetrically positioned. Each fluid pipeline docking end pipe 1 includes a docking ring 101. Multiple snap-fit ​​components are fixed in a circular array on the surfaces of the two docking rings 101 that face each other. Each snap-fit ​​component consists of two vertically symmetrical connecting pieces 105. The outer surface of the connecting piece 105 is provided with an anti-detachment protrusion 106, which is triangular.

[0032] The end of the docking ring 101 facing the fluid pipe is provided with a positioning ring groove 102. The outer surface of this end of the docking ring 101 is provided with a plurality of circularly arrayed screw mounting holes 103. The inner side of the screw mounting holes 103 is detachably installed with a pointed screw by threads. The inner side of the positioning ring groove 102 is provided with a sealing ring 104. The sealing ring 104 is used to ensure the sealing of the rear end of the assembly between the fluid pipe and the docking ring 101. After installation, the pointed screw is drilled into the wall of the fluid pipe, increasing the connection strength and structural stability between the fluid pipe and the docking ring 101.

[0033] like Figure 1 , Figure 4 and Figure 8As shown, an intermediate connecting bellows 3 is provided between the two docking rings 101. Both ends of the intermediate connecting bellows 3 are fixed with connecting end pipes 2. The connecting end pipes 2 include an assembly ring 201. One end of the assembly ring 201 is detachably inserted into the docking ring 101. The end of the assembly ring 201 that contacts the docking ring 101 has a circular array of multiple positioning grooves 204. An installation ring groove 202 is provided in the middle of the assembly ring 201. The positioning groove 204 communicates with the installation ring groove 202. The connecting piece 105 fixed to the end face of the docking ring 101 passes through the positioning groove 204 and enters the inner side of the installation ring groove 202. After the connecting piece 105 passes through the positioning groove 204, one end of the anti-detachment protrusion 106 contacts the inner wall of the installation ring groove 202. At this time, the anti-detachment protrusion 106 restricts the position of the connecting piece 105, so that the connecting piece 105 cannot slide out of the positioning groove 204, realizing the connection assembly of the assembly ring 201 and the docking ring 101 without the need for screws or bolts, thus shortening the assembly time of the joint mechanism.

[0034] A sealing ring groove 203 is provided on the outer side of the end where the assembly ring 201 connects to the docking ring 101. The inner side of the sealing ring groove 203 is filled with a sealing ring 205. The sealing ring 205 has an L-shaped cross-section. The sealing ring 205 is used to seal the connection between the docking ring 101 and the assembly ring 201, ensuring the sealing performance of the entire pipeline after the fluid pipeline and the joint mechanism are assembled.

[0035] like Figure 5 and Figure 9 As shown, a rotating ring 4 is rotatably mounted on the inner side of the mounting groove 202. The rotating ring 4 includes an upper splicing arc strip 401 and a lower splicing arc strip 402. The ends of the upper splicing arc strip 401 and the lower splicing arc strip 402 are mutually abutted and symmetrically positioned. Both the upper splicing arc strip 401 and the lower splicing arc strip 402 have arc grooves 404 on their end faces facing the docking ring 101. The end of the connecting piece 105 passes through the positioning groove 204 and enters the inner side of the arc groove 404. Multiple rotating insertion blocks are distributed in a circular array on the inner side of the arc groove 404. Each rotating insertion block includes two pressing blocks 405. The two pressing blocks 405 are symmetrically positioned. The pressing blocks 405 and the... The anti-detachment protrusions 106 on the outer surface of the connecting piece 105 are fitted together, and the surface of the extrusion block 405 facing the anti-detachment protrusions 106 has a V-shaped structure. When the upper splicing arc strip 401 and the lower splicing arc strip 402 are rotated, the two extrusion blocks 405, which are symmetrically positioned, are used to extrude the anti-detachment protrusions 106 on the outer surface of the connecting piece 105, so that the two connecting pieces 105 are close to each other until the maximum distance between the two anti-detachment protrusions 106 is the same as the height of the positioning groove 204. At this time, the connecting piece 105 can be removed from the positioning groove 204 simply by pulling the assembly ring 201 along the axial direction, thus completing the disassembly of the assembly ring 201 and the docking ring 101.

[0036] Both ends of the upper and lower splicing arc strips 401 and 402 are provided with snap-fit ​​grooves 408. Splicing pieces 403 are detachably installed between the ends of the upper and lower splicing arc strips 401 and 402. A snap-fit ​​block 407 is fixed on the inner surface of the splicing piece 403. The snap-fit ​​block 407 is slidably snapped into the inside of the snap-fit ​​groove 408. The upper and lower splicing arc strips 401 and 402 are assembled and connected by the splicing piece 403 and the snap-fit ​​block 407, so that the upper and lower splicing arc strips 401 and 402 form a ring structure and are installed inside the mounting ring groove 202.

[0037] like Figure 2 , Figure 4 , Figure 6 and Figure 7 As shown, a limiting groove 406 is provided in the middle of the upper surface of the upper splicing arc strip 401, and a sliding storage groove 206 is provided in the middle of the upper surface of the assembly ring 201. The sliding storage groove 206 and the limiting groove 406 are in the same position and have the same width. A limiting plug plate 5 is slidably installed on the inner side of the sliding storage groove 206. One end of the limiting plug plate 5 is slidably engaged with the inner side of the limiting groove 406. Limiting grooves 27 are provided on both sides of the inner wall of the sliding storage groove 206. Sliding strips 8 are fixed on both sides of the limiting plug plate 5. The sliding strips 8 are slidably engaged with the inner side of the limiting grooves 27. The position of the upper splicing arc strip 401 is limited by the slidably installed limiting plug plate 5, so that the upper splicing arc strip 401 cannot rotate without external intervention, thereby ensuring that the two symmetrical anti-detachment protrusions 106 are not squeezed by the squeezing block 405.

[0038] A filling block 6 is also installed on the inner side of the sliding storage slot 206. Two trapezoidal disassembly protrusions 7 are fixed on the upper surface of the filling block 6. The filling block 6 restricts the position of the limiting plug plate 5, ensuring that the limiting plug plate 5 cannot slide and detach from the limiting slot 406 before the filling block 6 is removed.

[0039] Working principle: When installing the entire connector mechanism and the fluid pipeline, simply insert the end of the fluid pipeline into the inner side of the positioning ring groove 102, and use a pointed screw to rotate and install it into the screw mounting hole 103. Tighten the pointed screw until it is completely inserted into the screw mounting hole 103. At this time, the tip of the pointed screw rotates into the pipe wall of the fluid pipeline, completing the assembly of the fluid pipeline and the entire connector mechanism.

[0040] When the connector mechanism is damaged and needs to be disassembled and replaced, the staff first grabs the two disassembly protrusions 7 and lifts them upward, so that the disassembly protrusions 7 pull the filling block 6 upward. At this time, the filling block 6 separates from the inside of the sliding storage groove 206. Then the sliding limit plug plate 5 pushes the limit plug plate 5 out of the limit slot 406 and slides completely into the inside of the sliding storage groove 206. After the upper splicing arc strip 401 is no longer restricted by the limit plug plate 5, it can rotate.

[0041] At this point, the upper splicing arc strip 401 and the lower splicing arc strip 402, connected by the splicing piece 403 and the snap-fit ​​block 407, are rotated clockwise. As they rotate, the pressing block 405 rotates around the axis of the docking ring 101 and the assembly ring 201. The rotating pressing block 405 presses against the anti-detachment protrusions 106 on the outer surface of the connecting piece 105, causing the two connecting pieces 105 to move closer together until the maximum distance between the two anti-detachment protrusions 106 is equal to the height of the positioning groove 204. At this point, the upper splicing... The arc-shaped strip 401 and the lower splicing arc-shaped strip 402 rotate and pull the assembly ring 201 along the axial direction of the docking ring 101. The assembly ring 201 moves away from the docking ring 101 along the axial direction, while the connecting piece 105 passes through the middle of the positioning groove 204, completing the disassembly of the docking ring 101 and the assembly ring 201. Then, the disassembly operation can be repeated for the other docking ring 101 and the assembly ring 201, which simplifies the disassembly operation of the docking ring 101 and the assembly ring 201, shortens the disassembly time, and effectively improves the disassembly and maintenance efficiency of the joint mechanism of the fluid pipeline.

[0042] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A quick-connect and quick-release coupling mechanism for fluid pipelines, comprising two fluid pipeline connecting end pipes (1), characterized in that: The two fluid pipes are symmetrically positioned and each fluid pipe is equipped with a docking ring (101). The surfaces of the two docking rings (101) facing each other are fixed with multiple snap-fit ​​pieces in a circular array. Each snap-fit ​​piece is composed of two vertically symmetrical connecting pieces (105). The outer surface of the connecting piece (105) is provided with an anti-detachment protrusion (106), which is triangular. An intermediate connecting bellows (3) is provided between the two docking rings (101). Both ends of the intermediate connecting bellows (3) are fixed with connecting end pipes (2). The connecting end pipes (2) include an assembly ring (201). One end of the assembly ring (201) is detachably inserted into the docking ring (101). The end of the assembly ring (201) that contacts the docking ring (101) has a circular array of multiple positioning grooves (204). An installation ring groove (202) is provided in the middle of the assembly ring (201). The positioning groove (204) communicates with the installation ring groove (202). The connecting piece (105) fixed to the end face of the docking ring (101) passes through the positioning groove (204) and enters the inner side of the installation ring groove (202).

2. The quick-release and quick-installation joint mechanism for fluid pipelines according to claim 1, characterized in that: The end of the docking ring (101) facing the fluid pipe is provided with a positioning ring groove (102), and the outer surface of this end of the docking ring (101) is provided with a plurality of circularly arranged screw mounting holes (103).

3. The quick-release and quick-installation joint mechanism for fluid pipelines according to claim 2, characterized in that: A pointed screw is detachably installed on the inner side of the screw mounting hole (103) by means of threads, and a sealing ring (104) is provided on the inner side of the positioning ring groove (102).

4. The quick-release and quick-installation joint mechanism for fluid pipelines according to claim 1, characterized in that: The assembly ring (201) is provided with a sealing ring groove (203) on the outer side of the end where it connects to the docking ring (101). The inner side of the sealing ring groove (203) is filled with a sealing ring (205), and the cross-section of the sealing ring (205) is L-shaped.

5. The quick-release and quick-installation joint mechanism for fluid pipelines according to claim 1, characterized in that: A rotating ring (4) is rotatably installed on the inner side of the mounting ring groove (202). The rotating ring (4) includes an upper splicing arc strip (401) and a lower splicing arc strip (402). The ends of the upper splicing arc strip (401) and the lower splicing arc strip (402) are attached to each other and are symmetrically positioned. The end faces of the upper splicing arc strip (401) and the lower splicing arc strip (402) facing the docking ring (101) are provided with arc grooves (404). The end of the connecting piece (105) passes through the positioning groove (204) and enters the inner side of the arc groove (404).

6. The quick-release and quick-installation joint mechanism for fluid pipelines according to claim 5, characterized in that: The inner circular array of the arc groove (404) has multiple rotating plug blocks, each including two pressing blocks (405). The two pressing blocks (405) are symmetrically positioned vertically. The pressing blocks (405) are in contact with the anti-detachment protrusions (106) on the outer surface of the connecting piece (105), and the surface of the pressing blocks (405) facing the anti-detachment protrusions (106) has a V-shaped structure.

7. The quick-release and quick-installation joint mechanism for fluid pipelines according to claim 6, characterized in that: Both ends of the upper splicing arc strip (401) and the lower splicing arc strip (402) are provided with snap-fit ​​grooves (408). The ends of the upper splicing arc strip (401) and the lower splicing arc strip (402) are detachably installed with splicing pieces (403). The inner surface of the splicing piece (403) is fixed with a snap-fit ​​block (407), and the snap-fit ​​block (407) is slidably snapped into the inside of the snap-fit ​​groove (408).

8. The quick-release and quick-installation joint mechanism for fluid pipelines according to claim 7, characterized in that: The upper surface of the upper splicing arc strip (401) is provided with a limiting groove (406) in the middle, and the upper surface of the assembly ring (201) is provided with a sliding storage groove (206) in the middle. The sliding storage groove (206) and the limiting groove (406) are in the same position and have the same width.

9. A quick-release and quick-installation joint mechanism for fluid pipelines according to claim 8, characterized in that: A limiting plug plate (5) is slidably installed inside the sliding storage groove (206). One end of the limiting plug plate (5) is slidably engaged inside the limiting slot (406). Limiting grooves (27) are provided on both inner walls of the sliding storage groove (206). Sliding strips (8) are fixed on both sides of the limiting plug plate (5). The sliding strips (8) are slidably engaged inside the limiting grooves (27).

10. A quick-release and quick-installation joint mechanism for fluid pipelines according to claim 9, characterized in that: The inner side of the sliding storage groove (206) is also equipped with a filling block (6), and the upper surface of the filling block (6) is fixed with two trapezoidal disassembly protrusions (7).

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