Flexible pipeline sealing connector structure

Abstract

The utility model discloses a flexible pipeline sealing connector structure which comprises a connecting assembly and pipeline pieces, the connecting assembly is connected with the pipeline pieces at the two ends in a sealing mode and comprises a locking structure, an inner retaining ring sleeve and a sealing sleeve, the sealing sleeve is arranged on the connecting portion of the pipeline pieces, and the inner retaining ring sleeve is buckled and fixed to the outer side of the sealing sleeve through the locking structure. According to the connecting structure, the sealing sleeve axially stretches in, the semi-ring sleeve is buckled in the radial direction for rapid assembly, the sealing ring arranged on the flange ring at the end of the pipeline piece is in sealing fit with the sealing sleeve, and the inner buckle ring sleeve is arranged in a limiting mode, so that sealing connection of the butt joint position of the pipeline piece is achieved; the pipeline sealing connection is convenient in butt joint, disassembly and assembly and suitable for butt joint of temporary pipelines, flexible movable structures are reserved at the butt joint positions after pipeline butt joint is completed, the use requirements can be met when external force stretching or butt joint length gaps exist, and operation and use are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline joint technical field, concretely relates to a flexible pipeline sealing connector structure. BACKGROUND

[0002] In the pipeline connection structure, the pipe joint is the connecting tool between the pipe fittings. The pipe fittings are used for conveying gas, liquid and other fluids. The common pipeline butt joint adopts the flange bolt connection fixed mode, and the size between the pipelines needs to be properly ensured, and the sealing gasket clamped in the middle also needs to be compensated.

[0003] The Chinese utility model patent "Pipe joint and related improvements" with the publication number CN105431666A discloses such a pipe fitting. The pipe joint comprises a pair of housings, a sealing ring is arranged in the housings, and after the pipelines are connected to the joint, the pipelines are tightened with screws. This connection scheme is rigid connection, and the deficiencies include insufficient sealing strength, easy sealing leakage under the vibration of the pipelines, and the disassembly and assembly of the bolts need a lot of time when connecting the pipelines, and the disassembly and assembly are very cumbersome and inconvenient to use. UTILITY MODEL CONTENT

[0004] In view of the prior art, the purpose of the utility model is to provide a connector structure for the sealing connection of pipeline butt joint. The structure is simple and practical, can seal and butt joint the pipe fittings, and can allow the two side pipe fittings to be stretched and buffered while maintaining the sealing butt joint.

[0005] In order to achieve the above purpose, the utility model adopts the technical scheme of a flexible pipeline sealing connector structure, which comprises a connecting assembly and a pipe fitting. The connecting assembly seals and connects two end pipe fittings, and comprises a locking structure, an inner buckle ring sleeve and a sealing sleeve. The sealing sleeve is arranged on the pipe fitting connection part, and the inner buckle ring sleeve is fixed on the outer side of the sealing sleeve through the locking structure.

[0006] As a further arrangement of the above scheme, the pipe fitting is further provided with a sealing groove and a sealing ring. The sealing groove is located at the end part of the pipe fitting, and is arranged on the flange ring which is larger than the size of the pipe fitting.

[0007] As a further arrangement of the above scheme, the inner buckle ring sleeve comprises a half ring sleeve, an inner buckle folded edge and a movable cavity. The inner diameter of the inner buckle folded edge is smaller than the diameter of the flange ring, and the diameter of the movable cavity is larger than the diameter of the flange ring.

[0008] As a further arrangement of the above scheme, the sealing sleeve is further provided with a ring groove part, and the axial length of the sealing sleeve is matched with the axial length of the movable cavity.

[0009] As a further arrangement of the above-mentioned scheme, the locking structure comprises a spring, a cover and a mounting seat fixed with the inner buckle ring, the mounting seat is provided with a hinge shaft for hinge connection of the cover and matching of a hook groove provided on the cover, the spring comprises a fixed part and an elastic part, and the elastic part forms an elastic buckling structure by penetrating through a pressing hole on the cover.

[0010] As a further arrangement of the above-mentioned scheme, the locking structure comprises a spring, a cover and a mounting seat fixed with the inner buckle ring, the mounting seat is provided with a hinge shaft for hinge connection of the cover and matching of a hook groove provided on the cover, the spring comprises a fixed part and an elastic part, and the elastic part forms an elastic buckling structure by penetrating through a pressing hole on the cover.

[0011] As a further arrangement of the above-mentioned scheme, the locking structure comprises a spring, a cover and a mounting seat fixed with the inner buckle ring, the mounting seat is provided with a hinge shaft for hinge connection of the cover and matching of a hook groove provided on the cover, the spring comprises a fixed part and an elastic part, and the elastic part forms an elastic buckling structure by penetrating through a pressing hole on the cover.

[0012] Beneficial effects: the connecting structure of the utility model through set up the sealing sleeve axial extension, the half ring set radial buckling, fast complete assembly, with the sealing ring provided on the flange ring of the pipe piece end part and the sealing fit of the sealing sleeve, through the limiting setting of the inner buckle ring set, thereby obtains the sealing connection of the pipe piece butt joint place, and relative to the ordinary flange bolt fixed, the pipe sealing connection of the embodiment not only butt joint dismounting convenient, suitable for the butt joint use of temporary pipe, and the flexible activity structure is left out after the pipe butt joint is completed at the butt joint place, when the external force is stretched or the butt joint length gap, can satisfy the use demand, convenient for operation use. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the sealing connector structure schematic view of the utility model.

[0014] Figure 2 It is the flexible connecting structure assembly schematic view of the embodiment.

[0015] Figure 3 It is the connector section view schematic view of the embodiment.

[0016] Figure 4 It is the inner buckle ring set structure schematic view of the utility model with the top bolt structure.

[0017] Reference numerals: 1. Connecting assembly; 2. Locking structure; 21. Spring; 22. Buckle cover; 23. Fixing part; 24. Elastic part; 25. Pressing hole; 27. Hinge shaft; 28. Hook groove; 3. Inner buckling ring sleeve; 31. Half ring sleeve; 32. Inner buckling folded edge; 33. Movable cavity; 4. Sealing sleeve; 41. Ring groove part; 5. Top bolt; 51. Bolt hole; 52. Top ring; 53. Spring component; 54. Pull cap; 9. Pipe fitting; 91. Sealing groove; 92. Sealing ring; 93. Flange ring. Detailed Implementation

[0018] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, where there is no conflict, the embodiments and features described in these embodiments can be combined with each other.

[0019] like Figures 1-3 The diagram shows a flexible pipe sealing connector structure, including a connecting component 1 and a pipe fitting 9. The connecting component 1 seals and connects the two ends of the pipe fitting 9. The connecting component 1 includes a locking structure 2, an inner buckle sleeve 3, and a sealing sleeve 4. The sealing sleeve 4 is disposed at the connection part of the pipe fitting 9, and the inner buckle sleeve 3 is fastened and fixed to the outside of the sealing sleeve 4 by the locking structure 2.

[0020] As a further provision of the above scheme, the pipe fitting 9 is also provided with a flange ring 93, a sealing groove 91 and a sealing ring 92. The sealing groove 91 is located at the end of the pipe fitting 9 and is set to the upper flange ring 93, which is larger than the size of the pipe fitting 9. In the above structure, the flange ring 93 is larger than the outer diameter of the pipe fitting 9, the sealing groove 91 is opened on the flange ring 93, and the sealing ring 92 is fitted on the sealing groove 91. Furthermore, the outer diameter of the flange ring 93 is smaller than the inner diameter of the sealing sleeve 4, and the outer diameter of the sealing ring 92 is larger than the inner diameter of the sealing sleeve 4.

[0021] As a further feature of the above scheme, the inner buckle sleeve 3 includes a half-ring sleeve 31, an inner buckle fold 32, and a movable cavity 33. The inner diameter of the inner buckle fold 32 is smaller than the diameter of the flange ring 93, and the diameter of the movable cavity 33 is larger than the diameter of the flange ring 93.

[0022] As a further provision of the above solution, the sealing sleeve 4 is also provided with an annular groove 41, and the axial length of the sealing sleeve 4 is matched with the axial length of the movable cavity 33, such as... Figure 3 The annular groove 41 shown in this embodiment is designed so that the outer diameter of the sealing ring 92 is larger than the inner diameter of the sealing sleeve 4. Under the action of the inner buckling ring 3, the two form an interference tight seal. The annular groove 41 can release the stress of deformation to the annular groove 41, and avoid the axial accumulation of the deformed material generated by the sealing sleeve 4 under compression, so as not to be crushed by the end face of the flange ring 93 opposite to the pipe component 9.

[0023] As a further arrangement of the above solution, the locking structure 2 comprises a spring sheet 21, a cover 22 and a mounting base 20 fixed with the inner buckle ring 3, the mounting base 20 is provided with a hinge shaft 27 for the hinge of the cover 22 and the matching of the hook groove 28 provided on the cover 22, the spring sheet 21 comprises a fixed part 23 and an elastic part 24, the elastic part 24 passes through the pressing hole 25 on the cover 22 to form an elastic buckling structure.

[0024] As a further arrangement of the above solution, the inner buckle folded edge 32 of the half ring 31 is further provided with a plurality of bolt holes 51, a top bolt 5 is movably inserted into the bolt hole 51 from the inside, one end of the top bolt 5 penetrating the bolt hole 51 is threadedly fixed with a pull cap 54, a top ring 52 is provided on one side of the movable cavity 33, a spring piece 53 is sleeved on the top bolt 5 between the top ring 52 and the inner wall of the inner buckle folded edge 32, and the spring piece 53 is used to push the top bolt 5 to move towards the inside.

[0025] Reference Figures 1-2 The connecting head of the utility model, the pipeline piece 9 of the embodiment is provided with a flange ring 93 and a sealing ring 92, the mounting connecting assembly 1 is sleeved outside the flange ring 93, the connecting assembly 1 is composed of two half rings 31 combined in a ring shape, hinge structure is arranged at one end of the half ring 31, and the locking structure 2 is arranged at the other end for buckling, the locking structure 2 comprises a mounting base 20 fixedly connected with the half ring 31, a hinge shaft 27 is further arranged on the mounting base 20, a spring sheet 21 is further arranged on the half ring 31, the fixed part 23 of the spring sheet 21 is fixed with the half ring 31, the elastic part 24 at the other end extends into the bottom of the cover 22 hinged on the hinge shaft 27 and extends out from the pressing hole 25, and the cover 22 is kept by the deformation reset force of the spring sheet 21, the hook groove 28 provided on the swing end of the cover 22 is buckled towards the inside, and the locking is realized by being latched on the hinge shaft 27 on the other side.

[0026] Further, the half ring 31 of the embodiment is provided with an inner buckle folded edge 32, the inner buckle folded edge 32 is composed of two sides extending inward to form a movable cavity 33, a sealing sleeve 4 is arranged inside the movable cavity 33, and the sealing sleeve 4 is just sleeved at the flange ring 93 of the pipeline piece 9, in use, the two half rings 31 are buckled outside the flange ring 93 through the locking structure 2, in the normal use state, the flange rings 93 of the two pipeline pieces 9 abut each other, the outer ring of the sealing ring 92 provided on the sealing groove 91 of the flange ring 93 abuts against the inside of the sealing sleeve 4, and the sealing is formed under the clamping of the inner buckle ring 3, as shown in the figure. Figure 3As shown, in this state, the cooperation of the inner buckle ring sleeve 3, the sealing sleeve 4 and the sealing ring 92 forms a flexible and scalable pipeline on the outer side of the pipeline piece 9. The inner buckle folded edge 32 and the flange ring 93 form a limit, avoiding the problem of sealing failure caused by excessive expansion. Thus, the connector can butt joint the pipeline pieces 9, and form an elastic region which can be axially expanded at the butt joint, facilitating the pulling of the pipeline and the installation of the pipeline in case of calculation error.

[0027] Further, as shown in the inner buckle folded edge 32, the bolt hole 51, the top bolt 5 with the top ring 52, and the spring member 53 abutting on the inner side of the inner buckle folded edge 32 and the top ring 52 are arranged. Figure 4 The other end of the top bolt 5 is inserted into the bolt hole 51 and extends outward, and the staff pulls it outward during installation.

[0028] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application belong to the scope of the present application and its equivalent technology, the present application also intends to include these modifications and variations.

Claims

1. A flexible pipe end seal connector structure comprising a connector assembly (1) and a pipe element (9), characterised in that: The connecting assembly (1) seals and connects two pipe fittings (9), and comprises a locking structure (2), an inner buckle ring sleeve (3) and a sealing sleeve (4), the sealing sleeve (4) is arranged at the connecting part of the pipe fittings (9), and the inner buckle ring sleeve (3) is buckled and fixed outside the sealing sleeve (4) through the locking structure (2).

2. A flexible pipe end fitting structure as claimed in claim 1, wherein: The pipe fittings (9) are further provided with a sealing groove (91) and a sealing ring (92), the sealing groove (91) is located at the end of the pipe fittings (9), and a flange ring (93) larger than the size of the pipe fittings (9) is arranged.

3. A flexible pipe end fitting structure as claimed in claim 2, wherein: The inner buckle ring sleeve (3) comprises a half ring sleeve (31), an inner buckle folded edge (32) and a movable cavity (33), the inner diameter of the inner buckle folded edge (32) is smaller than the diameter of the flange ring (93), and the diameter of the movable cavity (33) is larger than the diameter of the flange ring (93).

4. A flexible pipe end fitting structure as claimed in claim 2, wherein: The sealing sleeve (4) is further provided with a ring groove part (41), and the axial length of the sealing sleeve (4) is matched with the axial length of the movable cavity (33).

5. A flexible pipe end fitting structure as claimed in claim 1, wherein: The locking structure (2) comprises a spring sheet (21), a buckle cover (22) and a mounting seat (20) fixed with the inner buckle ring sleeve (3), the mounting seat (20) is provided with a hinge shaft (27) for the hinge connection of the buckle cover (22) and the matching of the hook groove (28) arranged on the buckle cover (22), the spring sheet (21) comprises a fixed part (23) and an elastic part (24), and the elastic part (24) passes through the pressing hole (25) on the buckle cover (22) to form an elastic buckling structure.

6. A flexible pipe end fitting structure as claimed in claim 3, wherein: The inner buckle folded edge (32) of the half ring sleeve (31) is further provided with a plurality of bolt holes (51), a jackscrew (5) is movably inserted into the bolt hole (51) from the inside, one end of the jackscrew (5) penetrating through the bolt hole (51) is threadedly fixed with a pull cap (54), a top ring (52) is arranged on one side of the movable cavity (33), a spring piece (53) is sleeved on the jackscrew (5) between the top ring (52) and the inner wall of the inner buckle folded edge (32), and the spring piece (53) is used for pushing the jackscrew (5) to move inward.

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