High-precision backflow pipeline structure

Abstract

The utility model discloses a high-precision backflow pipeline structure, which relates to the technical field of backflow pipelines and comprises a pipeline, the pipeline comprises two connecting pipes and a mounting pipe, telescopic pipes are fixed at the two ends of the mounting pipe, rotating pipes are arranged at one ends of the two telescopic pipes, threaded grooves are formed in the two rotating pipes, and the two connecting pipes are connected with the mounting pipe. External thread connecting sleeves are fixed at one ends of the two connecting pipes; and the anti-reflux valve is arranged in the mounting pipe, and the anti-reflux valve is used for preventing the fluid from flowing backwards. A part provided with an anti-reflux valve in a pipeline is quickly disassembled and assembled through the threaded groove formed in one end of the rotating pipe and the external threaded connecting sleeve arranged at one end of the connecting pipe, the clamping block is driven to move along with the rotating ring by rotating the rotating ring, and during moving, the clamping block is limited by the outer wall of the mounting ring groove and pushed to rotate back to the inner groove, so that the anti-reflux valve is quickly disassembled and assembled. And the anti-reflux valve can be poured out from the mounting pipe, the disassembly is convenient and fast, the consumed time is short, and the maintenance convenience of the anti-reflux valve is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a backflow pipeline technical field, concretely relates to a high accuracy backflow pipeline structure. BACKGROUND

[0002] The pipeline is important infrastructure for transporting fluid (such as liquid and gas), and is widely used in industry, agriculture, construction and municipal and other fields, and the pipeline is divided into metal pipeline, plastic pipeline and ceramic pipeline, and many pipelines add anti-backflow parts inside to prevent fluid backflow and avoid fluid being discharged from the drain through the pipeline.

[0003] Because the anti-backflow part is occasionally blocked by dirt, sediment or scale, the valve cannot be normally closed, thereby causing backflow problems, so the valve needs to be cleaned and maintained regularly, but the existing backflow pipeline is difficult to disassemble, and external tools are needed to disassemble the pipeline or other equipment, causing the anti-backflow part to be inconvenient and time-consuming to maintain. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a high accuracy backflow pipeline structure, which solves the problem that the existing backflow pipeline is difficult to disassemble and needs to be disassembled with external tools or other equipment, causing the anti-backflow part to be inconvenient and time-consuming to maintain.

[0005] The utility model solves the above technical problems through the following technical scheme, and the utility model comprises:

[0006] The pipeline comprises two connecting pipes and a mounting pipe, both ends of the mounting pipe are fixed with telescopic pipes, one end of each of the two telescopic pipes is provided with a rotating pipe, a threaded groove is formed in the inside of each of the two rotating pipes, and an outer threaded connecting sleeve is fixed to one end of each of the two connecting pipes.

[0007] The anti-backflow valve is arranged in the inside of the mounting pipe, and the anti-backflow valve is used to prevent fluid backflow.

[0008] Preferably, a mounting ring groove is formed in the outside of the mounting pipe, three equidistantly distributed through grooves are formed in the inside of the mounting ring groove, a ring-shaped groove is formed in the outside of the anti-backflow valve, a shift prevention assembly is arranged in the inside of the mounting ring groove, and the shift prevention assembly is used to position the anti-backflow valve.

[0009] Preferably, the shift prevention assembly comprises a rotating ring rotating in the inside of the mounting ring groove, three equidistantly distributed inner grooves are formed in the inner surface of the rotating ring, a first magnetic sheet is fixed in the inside of each of the three inner grooves, a clamping block is rotatably arranged in the inside of each of the three inner grooves, each of the three clamping blocks is arranged in the inside of a corresponding through groove, and a second magnetic sheet is fixed to the outside of each of the three clamping blocks.

[0010] Preferably, two positioning grooves are arranged above the mounting ring groove, and the rotating ring is internally fixed with an elastic clamping strip.

[0011] Preferably, an anti-skid groove is arranged on the outer surface of the rotating ring, and the elastic clamping strip is made of rubber.

[0012] Preferably, the mounting pipe is internally fixed with an annular support table.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] The threaded groove arranged at one end of the rotating pipe and the external threaded connecting sleeve arranged at one end of the connecting pipe are used for quickly disassembling and assembling the component with the anti-backflow valve in the pipeline, the clamping block is moved along with the rotating ring, and when the clamping block is moved, the clamping block is limited and pushed back to the inner groove by the outer wall of the mounting ring groove, so that the limiting of the anti-backflow valve is released, and the anti-backflow valve is poured out of the mounting pipe, the disassembly is convenient and time-saving, and the convenience of maintenance of the anti-backflow valve is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a front view structural schematic diagram of the utility model;

[0016] Figure 2 It is a partial sectional view of the utility model;

[0017] Figure 3 It is a partial disassembly schematic diagram of the utility model;

[0018] Figure 4 It is a disassembly schematic diagram of the mounting pipe, the anti-moving assembly and the anti-backflow valve in the utility model;

[0019] Figure 5 It is Figure 4 An enlarged schematic diagram of A part in the utility model.

[0020] Numerals in the drawing represent:

[0021] 1, pipeline; 11, connecting pipe; 12, mounting pipe; 13, telescopic pipe; 14, rotating pipe; 15, threaded groove; 16, external threaded connecting sleeve; 2, anti-backflow valve; 3, mounting ring groove; 4, through groove; 5, annular groove; 6, anti-moving assembly; 61, rotating ring; 62, inner groove; 63, first magnetic sheet; 64, clamping block; 65, second magnetic sheet; 66, positioning groove; 67, elastic clamping strip; 7, annular support table. DETAILED DESCRIPTION

[0022] The above and other technical features and advantages of the utility model will be described in more detail below with reference to the drawings.

[0023] This embodiment provides a technical solution: a high-precision reflux pipeline structure, as Figures 1-5 shown, including a pipeline 1, a backflow prevention valve 2 and an anti-displacement component 6. The backflow prevention valve 2 is arranged inside the installation pipe 12 to prevent fluid backflow. The pipeline 1 includes two connecting pipes 11 and an installation pipe 12 arranged between the two connecting pipes 11. An annular support platform 7 for the backflow prevention valve 2 is fixed inside the installation pipe 12. Expansion pipes 13 are fixed at both ends of the installation pipe 12. The expansion pipes 13 can change the overall length and bending degree of the pipeline 1 by relying on their own characteristics. One ends of the two expansion pipes 13 are both provided with rotating pipes 14. Anti-slip patterns are arranged on the outer part of the rotating pipes 14 to avoid slipping when rotating the rotating pipes 14. Threaded grooves 15 are opened inside the two rotating pipes 14. One ends of the two connecting pipes 11 are both fixed with external thread connecting sleeves 16. The external thread connecting sleeves 16 are screwed into the threaded grooves 15 correspondingly, so that the installation pipe 12 and the connecting pipes 11 can be quickly disassembled and assembled without the help of external tools, thereby facilitating the removal, replacement or repair of the backflow prevention valve 2.

[0024] An installation ring groove 3 is opened on the outer part of the installation pipe 12. Three equally spaced through grooves 4 are opened inside the installation ring groove 3. An annular groove 5 is opened on the outer part of the backflow prevention valve 2. The anti-displacement component 6 is arranged inside the installation ring groove 3. The anti-displacement component 6 is used to position the backflow prevention valve 2 to avoid the backflow prevention valve 2 floating up and down in the installation pipe 12. The anti-displacement component 包括 a rotating ring 61 rotating inside the installation ring groove 3. An indicating arrow is arranged on the outer part of the rotating ring 61 to mark the results that will be obtained in the rotation direction. For example, an arrow points to the mark "disassembly", that is, when the rotating ring 61 is rotated to this direction, the positioning of the backflow prevention valve 2 can be removed. A sealing piece is arranged at the rotating connection between the rotating ring 61 and the installation ring groove 3 to increase the sealing performance of the gap between the two. Anti-slip grooves are opened on the outer surface of the rotating ring 61 to increase the friction between the hand and the rotating ring 61 and avoid slipping when rotating the rotating ring 61. Three equally spaced inner grooves 62 are opened on the inner surface of the rotating ring 61. First magnetic pieces 63 are fixed inside the three inner grooves 62. Positioning blocks 64 are rotated inside the three inner grooves 62. The three positioning blocks 64 respectively pass through the three through grooves 4. Second magnetic pieces 65 are fixed on the outer parts of the three positioning blocks 64. The first magnetic pieces 63 and the second magnetic pieces 65 are of the same pole magnetism, and the position of the positioning blocks 64 is restricted by using the characteristic of mutual repulsion between the two. Two positioning grooves 66 are opened above the installation ring groove 3. An elastic clamping strip 67 is fixed inside the rotating ring 61. The size of the elastic clamping strip 67 is adapted to the positioning grooves 66. The elastic clamping strip 67 is made of rubber material and has the function of rebounding after deformation.

[0025] In use, during installation, the two rotating tubes 14 are respectively corresponded to the two outer threaded connecting sleeves 16, and the rotating tubes 14 are screwed on the outside of the outer threaded connecting sleeves 16, so that the installation tube 12 and the connecting tube 11 are completed, meanwhile, the overall length of the installation tube 12 and the connecting tube 11 can be adjusted in a proper range through the telescopic tube 13, and the overall bending direction of the pipeline 1 can be properly adjusted, so that the use range of the pipeline 1 is improved, and during use, if the anti-backflow valve 2 has problems, such as being blocked due to dirt, deposits or scale, the rotating tube 14 can be directly rotated until the rotating tube 14 is rotated out of the outer threaded connecting sleeve 16, after the two rotating tubes 14 are separated from the corresponding outer threaded connecting sleeves 16, the rotating ring 61 is rotated according to the indication arrow on the outside of the rotating ring 61, and the rotating ring 61 drives the clamping block 64 to move, when the clamping block 64 moves, it is limited and pushed back to the inner groove 62 by the outer wall of the installation ring groove 3, until the elastic clamping strip 67 is clamped into one of the positioning grooves 66, that is, the limiting of the anti-backflow valve 2 is released, and the anti-backflow valve 2 can be poured out of the installation tube 12.

[0026] In later stage, during installation of the anti-backflow valve 2, the anti-backflow valve 2 is placed into the installation tube 12, and the rotating ring 61 is rotated back, so that the clamping block 64 is rotated to the position corresponding to the through groove 4, and the clamping block 64 is clamped into the ring-shaped groove 5 on the outside of the anti-backflow valve 2 through the through groove 4 due to repulsion of the first magnetic sheet 63 and the second magnetic sheet 65, so that the anti-backflow valve 2 is limited by the clamping block 64 and cannot move floatingly in the installation tube 12.

[0027] The above only describes the preferred embodiments of the present application, which are only illustrative but not limiting. It is understood by those skilled in the art that many changes, modifications and even equivalents can be made to the present application within the spirit and scope of the present application, but all will fall within the protection scope of the present application.

Claims

1. A high-precision return pipe structure, characterized by, Include: Pipeline (1), the pipeline (1) includes two connecting pipe (11) and installation pipe (12), both ends of the installation pipe (12) are fixed with telescopic pipe (13), one end of two telescopic pipes (13) is provided with rotating pipe (14), the inside of two rotating pipes (14) is provided with thread groove (15), one end of two connecting pipes (11) is fixed with external thread connecting sleeve (16); Anti-reflux valve (2), the anti-reflux valve (2) is arranged in the installation pipe (12), the anti-reflux valve (2) is used for preventing fluid reflux.

2. The high-precision return pipe structure according to claim 1, wherein The outside of the installation pipe (12) is provided with installation ring groove (3), the inside of the installation ring groove (3) is provided with three equidistantly distributed through grooves (4), the outside of the anti-reflux valve (2) is provided with ring groove (5), the inside of the installation ring groove (3) is provided with anti-moving assembly (6), the anti-moving assembly (6) is used for positioning the anti-reflux valve (2).

3. The high-precision return line conduit structure of claim 2, wherein, The anti-moving assembly (6) includes rotating ring (61) rotating in the installation ring groove (3), the inner surface of the rotating ring (61) is provided with three equidistantly distributed inner grooves (62), the first magnetic sheet (63) is fixed in the inside of three inner grooves (62), the clamping block (64) is rotating in the inside of three inner grooves (62), three clamping blocks (64) are respectively arranged in the inside of three through grooves (4), the second magnetic sheet (65) is fixed on the outside of three clamping blocks (64).

4. The high-precision return pipe structure according to claim 3, wherein The upper part of the installation ring groove (3) is provided with two positioning grooves (66), the inside of the rotating ring (61) is fixed with elastic clamping strip (67).

5. The high-precision return line conduit structure of claim 4, wherein, The outer surface of the rotating ring (61) is provided with anti-skid groove, the elastic clamping strip (67) is made of rubber material.

6. The high-precision return line conduit structure of claim 1, wherein, The inside of the installation pipe (12) is fixed with annular support table (7).

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