Flexible universal flange variable head

Abstract

The flexible universal flange variable head comprises a pipeline structure and a joint structure matched with the pipeline structure, the pipeline structure comprises a flexible pipe body, and the two ends of the flexible pipe body are provided with sealing grooves and locking rods which are symmetrically arranged. By the adoption of the structure, the joint position with limited space can be dealt with, flexible adjustment and flexible bending are achieved, and the problem of pipeline butt joint in narrow and small space is solved; flexible butt joint assembly is achieved, pipeline connection needs to be controlled, the number of pipeline ports needs to be changed, the use number and specification of transformer overhaul flange variable heads are reduced, and flexibility and convenience are achieved; the device is simple in overall structure, convenient to assemble, disassemble and use and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of maintenance and repair equipment for hydropower stations, in particular to a flexible universal flange variable head. Background Art

[0002] When draining and filling oil and handling oil in oil-immersed transformers, as well as when overhauling SF6 equipment such as GCB, GIS, and GIL, in order to achieve the connection between pipelines of different sizes, a large number of flange adapters with different specifications and sizes need to be used, and various types of adapters need to be made. Since the flanges at both ends of the current rigid adapters cannot be replaced, the number of flange adapters used is too large, which not only increases the difficulty of storage and transportation, but also still cannot meet the needs of some special environments such as narrow and equipment-intensive environments. In order to reduce the specifications and number of flange adapters used during oil and gas operations, especially the specifications and number of flange adapters during the overhaul of large oil-immersed transformers, and to meet the needs of pipe port transfer in various special environments, it is necessary to design a flexible universal flange adapter. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a flexible universal flange adapter, which can cope with the joint position with limited space, flexibly adjust and bend, and solve the problem of pipeline docking in a narrow and small space; flexible docking and assembly, demand-controlled pipeline connection, change the number of pipeline openings, reduce the number and specifications of transformer maintenance flange adapters, and is more flexible and convenient; the overall structure of the device is simple, and it is easy to assemble and disassemble, and has strong practicality.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a flexible universal flange head, including a pipeline structure and a joint structure matched therewith, the pipeline structure includes a flexible pipe body, and sealing grooves and symmetrically arranged locking rods are provided at both ends of the flexible pipe body;

[0005] The joint structure includes a pipeline joint and an interface joint;

[0006] The pipeline joint includes a first butt joint, the first butt joint is sleeved with the flexible pipe body, a sealing ring matched with the sealing groove is symmetrically arranged in the first butt joint, positioning grooves matched with the locking rod are symmetrically arranged at both ends of the first butt joint, and a locking hoop matched with the locking rod is arranged on the first butt joint;

[0007] The interface connector includes a second butt joint tube, which is sleeved and matched with the flexible tube body. A sealing ring that cooperates with the sealing groove is provided in the second butt joint tube. A positioning groove that cooperates with the locking rod is symmetrically provided at one end of the second butt joint tube. A locking hoop that cooperates with the locking rod is provided on the second butt joint tube. A connecting flange is provided at the other end of the second butt joint tube.

[0008] In a preferred solution, the flexible pipe body is symmetrically provided with mounting sleeves, and a flexible metal protective net is provided between the symmetrically provided mounting sleeves.

[0009] In a preferred solution, the connecting flange includes a round-head connecting flange and a square-head connecting flange.

[0010] In a preferred solution, the first butt joint pipe and the second butt joint pipe have the same caliber, and the inner diameters of the first butt joint pipe and the second butt joint pipe are the same as the outer diameter of the flexible pipe body.

[0011] The flexible universal flange head provided by the utility model has the following beneficial effects by adopting the above structure:

[0012] (1) It can cope with the joint position with limited space, and can be flexibly adjusted and bent, solving the problem of pipe connection in narrow and small space;

[0013] (2) Flexible docking and assembly, demand-controlled pipeline connection, changing the number of pipeline ports, reducing the number and specifications of transformer maintenance flange adapters, making it more flexible and convenient;

[0014] (3) The overall structure of the device is simple, easy to assemble and disassemble, and highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 This is a schematic diagram of the pipeline structure of the utility model.

[0018] Figure 3 It is a schematic diagram of the structure of the pipeline connector of the utility model.

[0019] Figure 4 It is a schematic diagram of the circular interface connector structure of the utility model.

[0020] Figure 5 It is a schematic diagram of the structure of the square interface connector of the utility model.

[0021] In the figure: pipeline structure 1, pipeline connector 2, interface connector 3, flexible pipe body 4, mounting sleeve 5, flexible metal protective net 6, sealing groove 7, locking rod 8, first butt joint 9, sealing ring 10, positioning groove 11, locking hoop 12, second butt joint 13, round head connecting flange 14, square head connecting flange 15. DETAILED DESCRIPTION

[0022] Embodiment 1:

[0023] like Figure 1-5 In the invention, the flexible universal flange head includes a pipeline structure 1 and a joint structure matched therewith, wherein the pipeline structure includes a flexible pipe body 4, and sealing grooves 7 and symmetrically arranged locking rods 8 are provided at both ends of the flexible pipe body 4;

[0024] The joint structure includes a pipeline joint 2 and an interface joint 3;

[0025] The pipeline connector 2 includes a first butt joint 9, which is sleeved with the flexible pipe body 4, and a sealing ring 10 that cooperates with the sealing groove 7 is symmetrically arranged in the first butt joint 9, and positioning grooves 11 that cooperate with the locking rod 8 are symmetrically arranged at both ends of the first butt joint 9, and a locking hoop 12 that cooperates with the locking rod 8 is arranged on the first butt joint 9;

[0026] The interface connector 3 includes a second butt joint tube 13, which is sleeved and matched with the flexible pipe body 4. A sealing ring 10 that cooperates with the sealing groove 7 is provided in the second butt joint tube 13. A positioning groove 11 that cooperates with the locking rod 8 is symmetrically provided at one end of the second butt joint tube 13. A locking hoop 12 that cooperates with the locking rod 8 is provided on the second butt joint tube 13, and a connecting flange is provided at the other end of the second butt joint tube 13.

[0027] In a preferred solution, the flexible pipe body 4 is symmetrically provided with mounting sleeves 5, and a flexible metal protective net 6 is provided between the symmetrically provided mounting sleeves 5. The flexible pipe body can be bent and the protective strength can be improved, which is highly practical.

[0028] In a preferred solution, the connecting flange includes a round connecting flange 14 and a square connecting flange 15. It can flexibly correspond to flange interfaces of different specifications and reduce the number of rigid adapters used.

[0029] In a preferred solution, the first butt joint pipe 9 and the second butt joint pipe 13 have the same caliber, and the inner diameter of the first butt joint pipe 9 and the second butt joint pipe 13 is the same as the outer diameter of the flexible pipe body 4. Flexible mounting and tight fit.

[0030] Embodiment 2:

[0031] like Figure 2 In the figure, the conventional pipeline structure 1 is a two-way pipe. The number of joints of the flexible pipe body 4 can be changed according to the use requirements. The pipeline structure 1 is replaced with a multi-head pipeline by simply changing the flexible pipe body 4 from a two-way pipe to a three-way or a four-way pipe. At the same time, two groups of four-way pipes can be combined into a six-way pipe through the pipeline connector 2.

[0032] The beneficial effects of the utility model are as follows: it can cope with the joint position with limited space, flexibly adjust and bend, and solve the problem of pipeline docking in narrow and small space; flexible docking and assembly, demand-controlled pipeline connection, change the number of pipeline ports, reduce the number and specifications of transformer maintenance flange heads, and is more flexible and convenient; the overall structure of the device is simple, easy to assemble and disassemble, and highly practical.

Claims

1. A flexible universal flange adapter, comprising a pipeline structure (1) and a joint structure matched therewith, characterized in that: The pipeline structure comprises a flexible pipe body (4), and sealing grooves (7) and symmetrically arranged locking rods (8) are provided at both ends of the flexible pipe body (4); The joint structure comprises a pipeline joint (2) and an interface joint (3); The pipeline joint (2) comprises a first butt joint (9), the first butt joint (9) being sleeved and matched with the flexible pipe body (4), a sealing ring (10) being symmetrically arranged in the first butt joint (9) and matching with the sealing groove (7), positioning grooves (11) being symmetrically arranged at both ends of the first butt joint (9) and matching with the locking rod (8), and a locking hoop (12) being arranged on the first butt joint (9) and matching with the locking rod (8); The interface connector (3) comprises a second butt joint tube (13), the second butt joint tube (13) being sleeved and matched with the flexible tube body (4), a sealing ring (10) matching with the sealing groove (7) being arranged in the second butt joint tube (13), a positioning groove (11) matching with the locking rod (8) being symmetrically arranged at one end of the second butt joint tube (13), a locking hoop (12) matching with the locking rod (8) being arranged on the second butt joint tube (13), and a connecting flange being arranged at the other end of the second butt joint tube (13).

2. The flexible universal flange adapter according to claim 1, characterized in that: The flexible pipe body (4) is symmetrically provided with mounting sleeves (5), and a flexible metal protection net (6) is provided between the symmetrically provided mounting sleeves (5).

3. The flexible universal flange adapter according to claim 1, characterized in that: The connecting flange comprises a round-head connecting flange (14) and a square-head connecting flange (15).

4. The flexible universal flange adapter according to claim 1, characterized in that: The first butt joint pipe (9) and the second butt joint pipe (13) have the same caliber, and the inner diameters of the first butt joint pipe (9) and the second butt joint pipe (13) are the same as the outer diameter of the flexible pipe body (4).

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