CN214008383U

CN214008383U - Inner sleeve type flexible hoop pipe joint

Info

Publication number: CN214008383U
Application number: CN202023070720.5U
Authority: CN
Inventors: 周井刚; 周二光; 周井凤
Original assignee: Lianshi Dongfang Pipe Fittings Co ltd
Current assignee: Lianshi Dongfang Pipe Fittings Co ltd
Priority date: 2020-12-18
Filing date: 2020-12-18
Publication date: 2021-08-20
Anticipated expiration: 2030-12-18

Abstract

A pipeline connecting device, in particular to an inner sleeve type flexible hoop pipe joint; comprises an upper tile (1), a groove type sealing element (2), a bolt (6), a nut (5) and a lower tile (7); the method is characterized in that: the spring support is characterized by also comprising a large spring support (3) and a small spring support (4), wherein the large spring support (3) is provided with a spiral coil (3-1); the number of spiral turns of the spiral turn (3-1) is 6-8; the two ends of the spiral ring (3-1) are provided with ball heads (3-2), and the large spring frame (3) is arranged in the groove type sealing element (2); the small spring frame (4) is provided with a small spiral ring (4-1); two ends of the small spiral ring (4-1) are provided with small ball heads (4-2), and the number of spiral turns of the small spiral ring (4-1) of the small spring frame (4) is 2-8; the problem of pipeline leakage caused by negative pressure of the fluid pipeline can be solved, the form and the sealing performance of the sealing element can be kept, and the purpose of solving the fluid leakage is achieved.

Description

Inner sleeve type flexible hoop pipe joint

Technical Field

The utility model relates to a pipe connection device, especially inner sleeve formula flexible clamp coupling.

Background

The flexible clamp pipe joint in the prior art consists of two semicircular clamps, a sealing ring and a bolt, and is widely applicable to circulating water pipelines of thermal power plants; various water pipelines in mines and wells; oil, oil product conveying pipeline in chemical industry; a metallurgical steelmaking return water pipeline; sewage plant pipelines; connection of municipal water supply and drainage, large-scale water conduits and the like; after the flexible clamp pipe joint in the prior art is used for a period of time, the leakage problem often occurs, potential safety hazards are easy to occur, safety accidents are caused, unnecessary loss and harm are caused to enterprises and the society, and therefore the problem of leakage of pipeline connection is a good cause worthy of research.

SUMMERY OF THE UTILITY MODEL

The utility model provides an inner sleeve type flexible clamp pipe joint, the fluid leakage problem of pipe connection can effectively be solved.

The technical proposal of the utility model for solving the technical problem is that: through field analysis of pipeline leakage in many application sites and disassembly research of the flexible clamp pipe joint in the prior art, the damage of the sealing element is mainly caused by the negative pressure of the fluid pipeline, once the fluid is cut off and the fluid needs to be continuously conveyed, the negative pressure is formed in the pipeline when the fluid pipeline is frequently subjected to fluid cut-off during fluid conveying, and the sealing element can deform and be damaged under the suction force of the negative pressure of the pipeline until the sealing element loses the sealing performance due to the fact that the larger the sealing element is, the lower the supporting strength is, and the problem of pipeline leakage is caused.

In order to solve the problems, an inner sleeve type flexible hoop pipe joint is designed through technical attack, experiments, tests and analytical researches.

The utility model comprises an upper tile, a groove type sealing element, a bolt, a nut and a lower tile; the method is characterized in that: the spring support is provided with a spiral coil; the two ends of the spiral ring are provided with ball heads, and the large spring frame is arranged in the groove type sealing piece body.

The upper tile comprises a connecting pipe clamping groove, a chamfer, a sealing piece groove, a tile combining lug and a connecting hole.

Go up the inner wall centre of tile and be equipped with the sealing member groove, the upper and lower both sides in sealing member groove are equipped with the connecting pipe draw-in groove respectively, and connecting pipe draw-in groove outer end is equipped with the chamfer, go up the tile about both ends be equipped with respectively and close the ear of tile, the middle part that closes the ear of tile is equipped with the connecting hole.

The upper tile and the lower tile have the same structure and are mutually matched with each other when being installed.

The upper tile and the lower tile have the effects that the pipeline can be clamped by mutually combining circles, and the purpose of connecting the pipeline can be achieved by assembling an upper bolt and a nut.

The groove type sealing element comprises a connecting ring, a spring hole, a connecting groove, a groove right wall, a right buckling ring chamfer, a groove left wall, a left buckling ring and a left buckling ring chamfer; the method is characterized in that: the connecting ring comprises a spring hole; the left lower end of the connecting ring is provided with a left buckling ring, and the right end of the left buckling ring is provided with a left buckling ring chamfer; the right lower end of the connecting ring is provided with a right buckling ring, and the left end of the right buckling ring is provided with a right buckling ring chamfer; the lower middle end of the connecting ring is provided with a connecting groove; the left end of the connecting groove is provided with a groove left wall; and the right end of the connecting groove is provided with a groove right wall.

The large spring frame is provided with a spiral coil; the number of spiral turns of the spiral turn is 6-8 turns; the two ends of the spiral ring are provided with ball heads, and the ball heads are used for preventing acute angles from puncturing and damaging groove type sealing pieces.

The large spring frame is arranged in the groove type sealing element body, plays a role of supporting the connecting ring of the groove type sealing element, and enables the connecting ring of the groove type sealing element to be flexible and convenient to install and use.

Furthermore, because the large spring frame is arranged in the groove type sealing piece body to support the connecting ring of the groove type sealing piece, the groove type sealing piece can be used in a pipeline and is not sucked and damaged by negative pressure in the pipeline, and the purposes of protecting the groove type sealing piece from being influenced by the negative pressure of the pipeline, stabilizing the work and preventing the pipeline from leaking are achieved.

The utility model has the advantages that: the problem of pipeline leakage caused by negative pressure of a fluid pipeline can be solved, the form and the sealing performance of a sealing element can be kept, and the purpose of solving the fluid leakage is achieved; the pipeline connection sealing device can guarantee the pipeline connection sealing, bring economic benefits to using enterprises, reduce unnecessary loss, save maintenance cost, save energy, protect environment and bring immeasurable beneficial effects to enterprises, society and countries.

Drawings

Fig. 1 is a front view of the structure of the present invention.

Fig. 2 is a top view of the structure of the present invention.

Fig. 3 is a structural sectional view of the present invention.

Fig. 4 is a top view of the upper tile structure of the present invention.

Fig. 5 is a structural bottom view of the upper tile of the present invention.

Fig. 6 is a structural sectional view of the groove seal of the present invention.

Fig. 7 is a structural sectional view of the large spring holder of the present invention.

Fig. 8 is a structural view of the small spring holder of the present invention.

In the figure, 1, an upper tile; 2. a trench seal; 3. a large spring frame; 4. a small spring holder; 5. a nut; 6. a bolt; 7. a lower tile; 1-1, connecting a pipe clamping groove; 1-2, chamfering; 1-3. seal groove; 1-4. tile-combining ear; 1-5, connecting holes; 2-1, connecting a ring; 2-2. spring hole; 2-3, connecting the grooves; 2-4, the right wall of the groove; 2-5. a right buckle ring; 2-6, chamfering the right fastening ring; 2-7, left wall of groove; 2-8, left buckle ring; 2-9, chamfering the left fastening ring; 2-10. a right small spring frame hole; 2-11, a left small spring frame hole; 3-1, a spiral coil; 3-2. a bulb; 4-1. small spiral ring; 4-2. small ball head.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

In fig. 1, 2 and 3, the present invention includes an upper tile 1, a groove type sealing member 2, a bolt 6, a nut 5 and a lower tile 7; the method is characterized in that: the spring support is characterized by further comprising a large spring support 3 and a small spring support 4, wherein the large spring support 3 is provided with a spiral coil 3-1; the number of spiral turns of the spiral turn 3-1 is 6-8; the two ends of the spiral ring 3-1 are provided with ball heads 3-2, and the large spring frame 3 is arranged in the groove type sealing element 2.

In fig. 4 and 5, the upper tile 1 comprises a connecting pipe clamping groove 1-1, a chamfer 1-2, a sealing piece groove 1-3, a tile combining lug 1-4 and a connecting hole 1-5.

The middle of the inner wall of the upper tile 1 is provided with a sealing piece groove 1-3, the upper side and the lower side of the sealing piece groove 1-3 are respectively provided with a connecting pipe clamping groove 1-1, the outer end of the connecting pipe clamping groove 1-1 is provided with a chamfer 1-2, the left end and the right end of the upper tile 1 are respectively provided with a tile combining lug 1-4, and the middle part of the tile combining lug 1-4 is provided with a connecting hole 1-5.

The upper tile 1 and the lower tile 7 have the same structure and are mutually matched with each other in installation.

The upper tile 1 and the lower tile 7 have the effects that the upper tile and the lower tile are mutually combined to form a circle, so that a pipeline can be clamped, and the purpose of connecting the pipeline can be achieved by assembling the upper bolt 6 and the nut 5.

In fig. 6, the groove type sealing element 2 comprises a connecting ring 2-1, a spring hole 2-2, a connecting groove 2-3, a groove right wall 2-4, a right buckling ring 2-5, a right buckling ring chamfer 2-6, a groove left wall 2-7, a left buckling ring 2-8, a left buckling ring chamfer 2-9, a right small spring frame hole 2-10 and a left small spring frame hole 2-11; the method is characterized in that: the connecting ring 2-1 comprises a spring hole 2-2; the left lower end of the connecting ring 2-1 is provided with a left buckling ring 2-8, and the right end of the left buckling ring 2-8 is provided with a left buckling ring chamfer 2-9; the right lower end of the connecting ring 2-1 is provided with a right buckling ring 2-5, and the left end of the right buckling ring 2-5 is provided with a right buckling ring chamfer 2-6; the lower middle end of the connecting ring 2-1 is provided with a connecting groove 2-3; a left small spring frame hole 2-11 is arranged in the left buckling ring 2-8; and a right small spring frame hole 2-10 is arranged in the right buckle ring 2-5.

In fig. 7, the large spring holder 3 is provided with a coil 3-1; the number of spiral turns of the spiral turn 3-1 of the large spring frame 3 is 6-8; the two ends of the spiral ring 3-1 are provided with ball heads (3-2), and the ball heads (3-2) are used for preventing acute angles from puncturing the groove type sealing element 2.

In fig. 3, 6 and 7, the large spring holder 3 is disposed in the groove seal 2 to support the connecting ring 2-1 of the groove seal 2, and the connecting ring 2-1 of the groove seal 2 is flexible for easy installation and use.

Furthermore, the large spring frame 3 is arranged in the groove type sealing element 2 body and supports the connecting ring 2-1 of the groove type sealing element 2, so that the groove type sealing element 2 can be used in a pipeline and is not absorbed and damaged by negative pressure in the pipeline, and the purposes of protecting the groove type sealing element 2 from being influenced by the negative pressure of the pipeline, stabilizing the work and preventing the pipeline from leaking are achieved.

In fig. 8, the small spring holder 4 is provided with a small spiral coil 4-1; two ends of the small spiral ring 4-1 are provided with small ball heads (4-2), and the small ball heads (4-2) are used for preventing sharp corners from puncturing the groove type sealing element 2; the number of spiral turns of the small spiral turn 4-1 of the small spring frame 4 is 2-8.

In fig. 3, 6 and 8, there are two small spring holders 4; one of the small spring frames 4 is arranged in a left small spring frame hole 2-11 of a left buckling ring 2-8 of the groove type sealing element 2; wherein the other small spring frame 4 is arranged in the right small spring frame hole 2-10 of the right buckling ring 2-5 of the groove type sealing element 2.

Claims

1. The inner sleeve type flexible clamp pipe joint comprises an upper tile (1), a groove type sealing element (2), a bolt (6), a nut (5) and a lower tile (7); the method is characterized in that: the spring support is characterized by also comprising a large spring support (3) and a small spring support (4), wherein the large spring support (3) is provided with a spiral coil (3-1); the number of spiral turns of the spiral turn (3-1) is 6-8; the two ends of the spiral ring (3-1) are provided with ball heads (3-2), and the large spring frame (3) is arranged in the groove type sealing element (2); the small spring frame (4) is provided with a small spiral ring (4-1); two ends of the small spiral ring (4-1) are provided with small ball heads (4-2), and the number of spiral turns of the small spiral ring (4-1) of the small spring frame (4) is 2-8.

2. The inner flexible band pipe joint of claim 1, wherein: the upper tile (1) comprises a connecting pipe clamping groove (1-1), a chamfer (1-2), a sealing piece groove (1-3), a tile combining lug (1-4) and a connecting hole (1-5); a sealing piece groove (1-3) is formed in the middle of the inner wall of the upper tile (1), connecting pipe clamping grooves (1-1) are formed in the upper side and the lower side of the sealing piece groove (1-3) respectively, a chamfer (1-2) is formed in the outer end of each connecting pipe clamping groove (1-1), tile combining lugs (1-4) are arranged at the left end and the right end of the upper tile (1) respectively, and connecting holes (1-5) are formed in the middle of the tile combining lugs (1-4); the upper tile (1) and the lower tile (7) have the same structure and are mutually matched with each other in installation.

3. The inner flexible band pipe joint of claim 1, wherein: the groove type sealing element (2) comprises a connecting ring (2-1), a spring hole (2-2), a connecting groove (2-3), a groove right wall (2-4), a right buckling ring (2-5), a right buckling ring chamfer (2-6), a groove left wall (2-7), a left buckling ring (2-8), a left buckling ring chamfer (2-9), a right small spring frame hole (2-10) and a left small spring frame hole (2-11); the left lower end of the connecting ring (2-1) is provided with a left buckling ring (2-8), and the right end of the left buckling ring (2-8) is provided with a left buckling ring chamfer (2-9); the right lower end of the connecting ring (2-1) is provided with a right buckling ring (2-5), and the left end of the right buckling ring (2-5) is provided with a right buckling ring chamfer (2-6); the lower middle end of the connecting ring (2-1) is provided with a connecting groove (2-3); a left small spring frame hole (2-11) is arranged in the left buckle ring (2-8); a right small spring frame hole (2-10) is arranged in the right buckle ring (2-5).

4. The inner flexible band pipe joint of claim 1 or 3, wherein: two small spring frames (4) are provided; wherein, one small spring frame (4) is arranged in a left small spring frame hole (2-11) of a left buckle ring (2-8) of the groove type sealing element (2); wherein the other small spring frame (4) is arranged in a right small spring frame hole (2-10) of a right buckling ring (2-5) of the groove type sealing element (2).