Pressure pipeline flange joint

Abstract

The utility model provides a pressure pipeline flange connector which comprises a fixing pipe, a fixing groove is formed in the side of the fixing pipe, a supporting block is movably installed in the fixing groove, an arc-shaped seat is welded to one end of the supporting block and movably installed on the outer wall of the fixing pipe, a threaded hole is formed in the supporting block, and a limiting bolt is rotatably installed in the threaded hole. A fixing disc is welded to the inner wall of the fixing pipe, and a connecting disc is movably installed on the side of the fixing disc. The connecting disc and the fixing disc are preliminarily limited and fixed through the fixing bolt, the limiting bolt is installed on the supporting block in the later period, the limiting bolt extrudes the connecting disc inwards to achieve secondary supporting and limiting, the two ends of the limiting bolt are installed on the two sides of the fixing bolt, and the limiting bolt provides limiting and fixing for the fixing bolt. In addition, under the extrusion force of the limiting bolt, the fixing disc and the connecting disc are prevented from loosening.

Description

Technical Field

[0001] This utility model relates to the field of flange joint technology, specifically to a pressure pipeline flange joint. Background Technology

[0002] Pressure pipelines refer to all pipelines that withstand internal or external pressure. Pressure pipelines are a part of pipelines. A flange joint is a device used for flange sealing. The flange is connected to the pipeline to realize the connection and installation of the pipeline. Existing flange joints require gaskets to enhance the sealing effect and prevent leakage. However, the existing gaskets are only placed between the two flanges, and the sealing effect is limited.

[0003] According to the pressure pipeline flange joint device disclosed in the existing patent document CN217441047U, it includes a flange plate, a collar fixedly connected to the upper surface of the flange plate, and sealing parts on both sides of the flange plate. The sealing parts include rubber gaskets, a connecting block is fixedly connected to the top center of the rubber gasket, and a slider box is fixedly connected to the other side of the connecting block. The outer ring of the flange plate has grooves on both sides that are adapted to the slider box. A rod is provided on one side of the slider box, and one end of the rod passes through the slider box. The inner cavity of the groove has several limiting holes along the vertical direction of the groove. In use, the anti-slip cap makes it easy for personnel to pull the rod, reducing the probability of slippage. The rubber gasket ensures a tighter connection between the two flange plates. However, although this solution achieves a tight installation of the flange plates, it cannot increase the support area at the pipeline connection and cannot achieve double limiting and fixing between the flanges, which is inconvenient in use. Therefore, there is an urgent need to design a pressure pipeline flange joint to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a pressure pipeline flange joint to address the aforementioned shortcomings in the prior art.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a pressure pipeline flange joint, including a fixed pipe, a fixed groove is opened on the side of the fixed pipe, a support block is movably installed inside the fixed groove, an arc-shaped seat is welded to one end of the support block, the arc-shaped seat is movably installed on the outer wall of the fixed pipe, a threaded hole is opened on the support block, a limit bolt is rotatably installed inside the threaded hole, a fixed plate is welded to the inner wall of the fixed pipe, and a connecting plate is movably installed on the side of the fixed plate.

[0006] Furthermore, an inlet pipe and an outlet pipe are welded onto the connecting plate, and fixing holes are opened on both the fixing plate and the connecting plate.

[0007] Furthermore, a fixing bolt is rotatably installed inside the fixing hole, and the fixing bolt is movably installed between the limiting bolts.

[0008] Furthermore, a connecting pipe is welded onto the fixed plate, and a conical seat is fixed onto the connecting pipe. The connecting pipe and the conical seat are movably installed inside the inlet pipe and the outlet pipe.

[0009] Furthermore, one end of the support block can move and contact the outer wall of the inlet pipe and the outlet pipe.

[0010] Furthermore, a sealing ring is movably installed between the connecting plate and the fixing plate, and the sealing ring has mounting holes that are distributed opposite to the fixing holes.

[0011] Furthermore, the width of the arc-shaped seat is greater than the width of the fixed groove, and a buffer block is installed between the arc-shaped seat and the fixed tube.

[0012] Furthermore, the conical seat is made of hard rubber, and the conical seat is deformed and installed inside the inlet pipe and outlet pipe.

[0013] The beneficial effects of this utility model are:

[0014] This type of pressure pipeline flange joint uses a connecting plate and a fixed plate to achieve initial positioning and fixation through fixing bolts. Later, a limiting bolt is installed on the support block, and the limiting bolt achieves secondary support and positioning by pressing the connecting plate inward.

[0015] This type of pressure pipeline flange joint is installed on both sides of the fixing bolt by the two ends of the limiting bolt. The limiting bolt provides a limiting fixation for the fixing bolt, preventing the nut from loosening due to rotation on the screw. In addition, the clamping force of the limiting bolt prevents the fixing plate and connecting plate from loosening.

[0016] This type of pressure pipeline flange joint features a fixed plate and a connecting plate that provide multi-point support through a fixed pipe and an arc-shaped block. This effectively increases the support strength at the pipeline interface, prevents breakage caused by shaking at the pipeline connection point, and ensures a sealed installation at the connection. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of a pressure pipeline flange joint according to the present invention.

[0018] Figure 2 This is a schematic diagram of the structure of the fixed pipe of the pressure pipeline flange joint of this utility model after being cut open.

[0019] Figure 3 This is a structural schematic diagram of the fixed pipe side view of a pressure pipeline flange joint according to the present invention.

[0020] Figure 4This is a structural schematic diagram of the left-side cross-section of the fixed pipe of a pressure pipeline flange joint according to this utility model.

[0021] In the diagram: 1. Fixed pipe; 2. Arc-shaped seat; 3. Support block; 4. Threaded hole; 5. Fixed groove; 6. Fixed plate; 7. Connecting pipe; 8. Conical seat; 9. Fixed hole; 10. Inlet pipe; 11. Drain pipe; 12. Connecting plate; 13. Fixed bolt; 14. Limit bolt. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] Please see Figures 1 to 4 This utility model provides a technical solution: a pressure pipeline flange joint, including a fixed pipe 1, a fixed groove 5 on the side of the fixed pipe 1, a support block 3 movably installed inside the fixed groove 5, an arc-shaped seat 2 welded to one end of the support block 3, the support block 3 providing multi-point fixed support for the side contact of the liquid inlet pipe 10 or the liquid outlet pipe 11 after being installed inside the fixed groove 5, the arc-shaped seat 2 being movably installed on the outer wall of the fixed pipe 1, a threaded hole 4 on the support block 3, a limit bolt 14 rotatably installed inside the threaded hole 4, and the limit bolt 14 being squeezed... The fixed plate 6 and the connecting plate 12 achieve a secondary compression seal. When the fixing bolt 13 is loosened, the pushing of the limiting bolt 14 can still seal and fix the connecting plate 12 and the fixed plate 6. The fixed plate 6 is welded on the inner wall of the fixed pipe 1. The connecting plate 12 is movably installed on the side of the fixed plate 6. The inlet pipe 10 and the outlet pipe 11 are welded on the connecting plate 12 respectively. The fixed plate 6 and the connecting plate 12 are both provided with fixing holes 9. The fixing holes 9 facilitate the fixed connection between the connecting plate 12 and the fixed plate 6, thereby realizing the connection and fixation between the pipes.

[0024] In this embodiment, a fixing bolt 13 is rotatably installed inside the fixing hole 9. The fixing bolt 13 is movably installed between the limiting bolts 14. A connecting pipe 7 is welded onto the fixing plate 6. A conical seat 8 is fixed onto the connecting pipe 7. The connecting pipe 7 and the conical seat 8 are movably installed inside the inlet pipe 10 and the outlet pipe 11. One end of the support block 3 is movably in contact with the outer wall of the inlet pipe 10 and the outlet pipe 11. The connecting pipe 7 and the conical seat 8 are installed inside the inlet pipe 10 and the outlet pipe 11, so that the liquid inside the inlet pipe 10 and the outlet pipe 11 can flow through the connecting pipe 7. The conical seat 8 can seal the inlet pipe 10, the outlet pipe 11 and the connecting pipe 7.

[0025] In this embodiment, a sealing ring is movably installed between the connecting plate 12 and the fixing plate 6. The sealing ring has an installation hole, which is distributed opposite to the fixing hole 9. The width of the arc-shaped seat 2 is greater than the width of the fixing groove 5. A buffer block is installed between the arc-shaped seat 2 and the fixing pipe 1. The conical seat 8 is made of hard rubber. The conical seat 8 is deformed by compression and installed inside the liquid inlet pipe 10 and the liquid outlet pipe 11. After the conical seat 8 is installed on the inner wall of the liquid inlet pipe 10 or the liquid outlet pipe 11, a sealing connection is formed by compression, which effectively prevents the liquid inside the liquid inlet pipe 10 and the liquid outlet pipe 11 from overflowing to the outside of the connecting pipe 7.

[0026] Operating steps: When using this device, the inlet pipe 10 and the outlet pipe 11 are installed on the side of the fixed plate 6 via the connecting plate 12. Before installing the connecting plate 12, the sealing gasket is installed on the fixed plate 6. After the connecting plate 12 contacts the fixed plate 6, the fixing bolts 13 are simultaneously installed inside the fixing holes 9. After the nuts are installed on the fixing bolts 13, the connecting plate 12 and the fixed plate 6 are fixedly connected. After the connecting plate 12 and the fixed plate 6 are fixedly installed, the connecting pipe 7 and the conical seat 8 are distributed inside the inlet pipe 10 and the outlet pipe 11. Then, the support block 3 on the arc-shaped seat 2 is installed inside the fixing groove 5. One end of the support block 3 after installation... The inlet pipe 10 and outlet pipe 11 are in contact with the outer walls to provide multi-point support. The connecting plate 12, the fixing plate 6 and the support block 3 cooperate to provide multi-point support for the fixing pipe 1. The fixing pipe 1 effectively increases the support area of ​​the fixing plate 6 and the connecting plate 12, and effectively avoids bending and breakage caused by pressure on the fixing plate 6 and the connecting plate 12. The limiting bolt 14 is installed inside the threaded hole 4. The two ends of the limiting bolt 14 are installed on both sides of the fixing bolt 13. The limiting bolt 14 provides a limiting fixation for the fixing bolt 13, avoiding loosening caused by the nut rotating on the screw. In addition, the limiting bolt 14 prevents the fixing plate 6 and the connecting plate 12 from loosening under the extrusion force of the limiting bolt 14.

[0027] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A pressure pipe flanged joint comprising a stationary pipe (1), characterized in that: The fixed tube (1) has a fixed groove (5) on its side. A support block (3) is movably installed inside the fixed groove (5). An arc-shaped seat (2) is welded to one end of the support block (3). The arc-shaped seat (2) is movably installed on the outer wall of the fixed tube (1). A threaded hole (4) is opened on the support block (3). A limit bolt (14) is rotatably installed inside the threaded hole (4). A fixed plate (6) is welded to the inner wall of the fixed tube (1). A connecting plate (12) is movably installed on the side of the fixed plate (6).

2. A pressure pipe flanged joint according to claim 1, characterized in that The connecting plate (12) is welded with an inlet pipe (10) and a drain pipe (11), and the fixing plate (6) and the connecting plate (12) are both provided with fixing holes (9).

3. A pressure pipe flanged joint according to claim 2, characterised in that A fixing bolt (13) is rotatably installed inside the fixing hole (9), and the fixing bolt (13) is movably installed between the limiting bolts (14).

4. A pressure pipe flanged joint according to claim 3, characterised in that A connecting pipe (7) is welded onto the fixed plate (6), and a conical seat (8) is fixed onto the connecting pipe (7). The connecting pipe (7) and the conical seat (8) are movably installed inside the inlet pipe (10) and the outlet pipe (11).

5. A pressure pipe flanged joint according to claim 1, characterized in that One end of the support block (3) is movable and in contact with the outer wall of the inlet pipe (10) and the outlet pipe (11).

6. A pressure pipe flanged joint according to claim 1, characterized in that A sealing ring is movably installed between the connecting plate (12) and the fixing plate (6), and the sealing ring has an installation hole, which is distributed opposite to the fixing hole (9).

7. A pressure pipe flanged joint according to claim 1, characterized in that The width of the arc-shaped seat (2) is greater than the width of the fixed groove (5), and a buffer block is installed between the arc-shaped seat (2) and the fixed tube (1).

8. A pressure pipeline flange joint according to claim 4, characterized in that, The conical seat (8) is made of hard rubber and is installed inside the inlet pipe (10) and outlet pipe (11) by compression deformation.

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