Anti-corrosion pipe fitting connecting flange

Abstract

The utility model discloses an anti-corrosion pipe fitting connecting flange which comprises a first flange, a second flange is arranged on the right side of the first flange, the first flange is sleeved with a first protective sleeve, the lower portion of the first protective sleeve is connected with a second protective sleeve, a bolt is arranged in the first flange, and the bolt is in external threaded connection with a nut. An arc-shaped groove is formed outside the first flange, a sealing ring is rotationally connected into the first flange, and a concave plate is connected outside the sealing ring. According to the connecting flange, the first flange, the second flange, the sealing ring, the concave plate and the auxiliary structures are arranged, the connecting flange can carry out auxiliary positioning treatment on the positions of the first flange and the second flange through cooperation of the positioning plate, the moving rod and the first spring, and the first flange and the second flange with the auxiliary structures can be easily and accurately aligned; therefore, the connecting flange faces are uniform and gapless, the sealing effect is greatly improved, the risk of medium leakage is reduced, and the installation time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of flanges, in particular to an anti-corrosion pipe connecting flange. Background Art

[0002] In modern industrial piping systems, flanges, as an important connection component, are widely used in the connection and sealing of various pipelines, especially in the chemical, petroleum, pharmaceutical and other industries. Since the medium may be corrosive, the demand for corrosion-resistant pipe connection flanges is particularly prominent. Current connection flanges are limited by multiple sets of bolts during assembly. However, most of the connection flanges do not have auxiliary structures inside, and it is often difficult to accurately align the flange position during installation. This inaccurate alignment can easily lead to uneven gaps between the flange surfaces, thereby affecting the sealing effect. Utility Model Content

[0003] The purpose of the utility model is to provide a corrosion-resistant pipe connecting flange to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an anti-corrosion pipe fitting connection flange, comprising flange one, flange two is provided on the right side of flange one, protective sleeve one is connected to the outside of flange one, protective sleeve two is connected to the bottom of protective sleeve one, bolts are provided in flange one, nuts are externally threaded on the bolts, an arc groove is provided on the outside of flange one, a sealing ring is rotatably connected in flange one, a concave plate is connected to the outside of the sealing ring, an auxiliary structure is provided in the concave plate, the auxiliary structure is overlapped with flange one, a clamping structure is provided above the protective sleeve two, the clamping structure is connected to the protective sleeve one, the auxiliary structure comprises a positioning plate and a moving rod, a slider is fixedly connected to one side of the positioning plate, a spring one is connected to the outside of the moving rod, and a supporting plate is fixedly connected to one end of the moving rod.

[0005] As a further preferred embodiment of the present technical solution, the second protective sleeve is sleeved on the outside of the second flange, the first protective sleeve is sleeved on the outside of the second flange, the bolts are clamped in the second flange, and the sealing ring is clamped in the second flange.

[0006] As a further preferred embodiment of the present technical solution, the positioning plate is overlapped with flange 1, the slider is slidably connected in the concave plate, and the moving rod is slidably connected in the concave plate.

[0007] As a further preferred embodiment of the present technical solution, the other end of the moving rod is connected to a slider, and the slider is connected to the concave plate via a spring.

[0008] As a further preferred embodiment of the present technical solution, the clamping structure includes a column, a clamping plate and a fixed column, the column is fixedly connected above the second protective sleeve, the clamping plate is slidably connected in the first protective sleeve, and the fixed column is fixedly connected in the first protective sleeve.

[0009] As a further preferred embodiment of the present technical solution, a convex plate is fixedly connected to the upper part of the clamping plate, a sleeve plate is connected to the upper part of the clamping plate, and the sleeve plate is slidably connected to the outside of the fixed column.

[0010] As a further preferred embodiment of the present technical solution, a second spring is connected to the outer cover of the fixed column, the sleeve is connected to the first protective sleeve via the second spring, and the clamping plate is clamped in the column.

[0011] The utility model provides an anti-corrosion pipe connecting flange, which has the following beneficial effects:

[0012] (1) The utility model sets flange 1, flange 2, sealing ring, concave plate and auxiliary structure. After flange 1 and flange 2 are clamped, a pulling force is applied to the moving rod through the supporting plate. When the slider moves, the spring 1 is deformed, and the sealing ring is driven to rotate in flange 1 and flange 2. The positioning plate slides on the surface of the arc groove. When the sealing ring rotates to the appropriate position, the supporting plate is released. The positioning plate after reset will overlap with flange 1. The connecting flange can assist in positioning the position of flange 1 and flange 2 through the cooperation between the positioning plate, the moving rod and spring 1. The flange 1 and flange 2 with the auxiliary structure can be easily and accurately aligned, thereby ensuring that the connecting flange surfaces are uniform and gapless, greatly improving the sealing effect, reducing the risk of medium leakage, saving installation time and labor, and improving the overall project progress and efficiency.

[0013] (2) The utility model provides a protective sleeve 1, a protective sleeve 2 and a clamping structure. The protective sleeve 2 is sleeved under the flange 1 and the flange 2, and the protective sleeve 1 is overlapped on the top of the protective sleeve 2. The convex plate applies tension to the clamping plate. When the sleeve slides on the surface of the fixed column, the spring 2 is deformed. When the protective sleeve 1 and the protective sleeve 2 are in contact, the column is inserted with the protective sleeve 1. After the convex plate is released, the clamping plate is reset by the spring 2. When the clamping plate is reset, it is clamped with the column, so that the protective sleeve 1 and the protective sleeve 2 can be quickly assembled with the surface of the flange 1 and the flange 2, and the bolts and nuts inside the flange 1 can be protected to prevent the bolts and nuts from rusting due to water stains in the air. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the three-dimensional structure of the flange of the present invention;

[0016] Figure 3 For the utility model Figure 2 A in the middle is an enlarged structural diagram;

[0017] Figure 4 It is a schematic diagram of a three-dimensional cross-sectional structure of the clamping structure of the present invention;

[0018] In the figure: 1. Flange 1; 2. Flange 2; 3. Protective sleeve 1; 4. Protective sleeve 2; 5. Sealing ring; 6. Concave plate; 7. Auxiliary structure; 701. Positioning plate; 702. Moving rod; 703. Slider; 704. Spring 1; 705. Support plate; 8. Clamping structure; 801. Column; 802. Clamping plate; 803. Convex plate; 804. Fixed column; 805. Spring 2; 806. Sleeve plate; 9. Arc groove; 10. Bolt; 11. Nut. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0020] The utility model provides a technical solution: Figure 1 and Figure 4 As shown, in this embodiment, an anti-corrosion pipe connecting flange includes flange 1, flange 2 is provided on the right side of flange 1, a protective sleeve 3 is connected to the outer surface of flange 1, and a protective sleeve 2 4 is connected to the bottom of the protective sleeve 3, a bolt 10 is provided in flange 1, and a nut 11 is externally threaded on the bolt 10, an arc groove 9 is provided on the outside of flange 1, a sealing ring 5 is rotatably connected in flange 1, and a concave plate 6 is connected to the outside of the sealing ring 5, an auxiliary structure 7 is provided in the concave plate 6, and the auxiliary structure 7 is overlapped with flange 1, a clamping structure 8 is provided above the protective sleeve 2 4, and the clamping structure 8 is connected to the protective sleeve 3, the auxiliary structure 7 includes a positioning plate 701 and a moving rod 702, a slider 703 is fixedly connected to one side of the positioning plate 701, a spring 1 704 is connected to the outer surface of the moving rod 702, and a supporting plate 705 is fixedly connected to one end of the moving rod 702.

[0021] like Figure 1 and Figure 3 As shown, protective sleeve 2 4 is sleeved on the outside of flange 2 2, protective sleeve 1 3 is sleeved on the outside of flange 2 2, bolt 10 is clamped in flange 2 2, sealing ring 5 is clamped in flange 2 2, positioning plate 701 overlaps flange 1, slider 703 is slidably connected in concave plate 6, moving rod 702 is slidably connected in concave plate 6, the other end of moving rod 702 is connected to slider 703, and slider 703 is connected in concave plate 6 through spring 1 704.

[0022] By setting a spring 1 704 and applying a pulling force to the moving rod 702 through the supporting plate 705, the moving rod 702 will pull the positioning plate 701 to move. The slider 703 will drive the spring 1 704 to deform when moving, so that the spring 1 704 plays a certain limiting role in the movement of the positioning plate 701. When the positioning plate 701 loses resistance, it will be reset by the spring 1 704, avoiding the positioning plate 701 from getting stuck when moving.

[0023] like Figure 4 As shown, the clamping structure 8 includes a column 801, a clamping plate 802 and a fixed column 804, the column 801 is fixedly connected to the top of the protective sleeve 2 4, the clamping plate 802 is slidably connected in the protective sleeve 1 3, the fixed column 804 is fixedly connected in the protective sleeve 1 3, a convex plate 803 is fixedly connected above the clamping plate 802, a sleeve plate 806 is connected above the clamping plate 802, the sleeve plate 806 is slidably connected to the outside of the fixed column 804, a spring 2 805 is connected to the outer outer surface of the fixed column 804, the sleeve plate 806 is connected to the protective sleeve 1 3 through the spring 2 805, and the clamping plate 802 is clamped in the column 801.

[0024] By setting the protective sleeve 1 3, the protective sleeve 2 4 and the clamping structure 8, the protective sleeve 2 4 is sleeved on the bottom of the flange 1 and the flange 2 2, and then the protective sleeve 1 3 is overlapped on the top of the protective sleeve 2 4, and the convex plate 803 is used to apply tension to the clamping plate 802. When the sleeve 806 slides on the surface of the fixed column 804, the spring 2 805 will be deformed. When the protective sleeve 1 3 and the protective sleeve 2 4 are in contact, the column 801 will be interlaced with the protective sleeve 1 3. After the convex plate 803 is released, the clamping plate 802 will be reset by the spring 2 805. When the clamping plate 802 is reset, it will be clamped with the column 801, so that the protective sleeve 1 3 and the protective sleeve 2 4 can be quickly assembled with the surfaces of the flange 1 and the flange 2, and the bolts 10 and nuts 11 inside the flange 1 can be protected to prevent the bolts 10 and nuts 11 from rusting due to water stains in the air.

[0025] The utility model provides an anti-corrosion pipe connecting flange, the specific working principle is as follows:

[0026] When the connecting flange is being installed, flange 1 and flange 2 can be clamped together, and the sealing ring 5 will be clamped in flange 2 2, and the supporting plate 705 will apply tension to the moving rod 702, and the moving rod 702 will pull the positioning plate 701 to move, and the slider 703 will drive the spring 1 704 to deform when moving, driving the sealing ring 5 to rotate in flange 1 1 and flange 2 2, and the positioning plate 701 will slide on the surface of the arc groove 9. When the sealing ring 5 rotates to the appropriate position, the supporting plate 705 is released, and the positioning plate 701 loses resistance and is reset by the spring 1 704, and the positioning plate 701 will overlap with flange 1. When flange 1 and flange 2 are aligned, 2 is positioned for auxiliary alignment, and then flange 1 and flange 2 are assembled through multiple bolts 10 and nuts 11. After flange 1 and flange 2 are installed, protective sleeve 2 4 is sleeved under flange 1 and flange 2, and protective sleeve 1 3 is overlapped on top of protective sleeve 2 4. Tension is applied to the clamping plate 802 through the convex plate 803. When the sleeve 806 slides on the surface of the fixed column 804, the spring 2 805 is deformed. When the protective sleeve 1 3 and the protective sleeve 2 4 are in contact, the column 801 is inserted into the protective sleeve 1 3. After loosening the convex plate 803, the clamping plate 802 is reset by the spring 2 805. When the clamping plate 802 is reset, it is clamped with the column 801.

[0027] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A corrosion-resistant pipe connection flange, comprising a flange (1), characterized in that: The right side of the flange 1 (1) is provided with a flange 2 (2), the outer surface of the flange 1 (1) is connected with a protective sleeve 1 (3), the lower part of the protective sleeve 1 (3) is connected with a protective sleeve 2 (4), the flange 1 (1) is provided with a bolt (10), the bolt (10) is externally threadedly connected with a nut (11), the flange 1 (1) is provided with an arc groove (9), the flange 1 (1) is rotatably connected with a sealing ring (5), the sealing ring (5) is externally connected with a concave plate (6), the concave plate (6) is provided with an auxiliary joint The auxiliary structure (7) is overlapped with the flange one (1), a clamping structure (8) is provided above the protective sleeve two (4), the clamping structure (8) is connected with the protective sleeve one (3), the auxiliary structure (7) includes a positioning plate (701) and a moving rod (702), one side of the positioning plate (701) is fixedly connected with a slider (703), the outer surface of the moving rod (702) is connected with a spring one (704), and one end of the moving rod (702) is fixedly connected with a supporting plate (705).

2. The corrosion-resistant pipe connecting flange according to claim 1, characterized in that: The second protective sleeve (4) is sleeved on the outside of the second flange (2), the first protective sleeve (3) is sleeved on the outside of the second flange (2), the bolt (10) is clamped in the second flange (2), and the sealing ring (5) is clamped in the second flange (2).

3. The corrosion-resistant pipe connecting flange according to claim 1, characterized in that: The positioning plate (701) is overlapped with the flange 1 (1), the slider (703) is slidably connected in the concave plate (6), and the moving rod (702) is slidably connected in the concave plate (6).

4. The corrosion-resistant pipe connecting flange according to claim 1, characterized in that: The other end of the moving rod (702) is connected to a slider (703), and the slider (703) is connected to the concave plate (6) via a spring (704).

5. The corrosion-resistant pipe connecting flange according to claim 1, characterized in that: The clamping structure (8) includes a column (801), a clamping plate (802) and a fixed column (804), wherein the column (801) is fixedly connected above the second protective sleeve (4), the clamping plate (802) is slidably connected inside the first protective sleeve (3), and the fixed column (804) is fixedly connected inside the first protective sleeve (3).

6. The corrosion-resistant pipe connecting flange according to claim 5, characterized in that: A convex plate (803) is fixedly connected to the upper portion of the clamping plate (802), a sleeve plate (806) is connected to the upper portion of the clamping plate (802), and the sleeve plate (806) is slidably connected to the outside of the fixed column (804).

7. The corrosion-resistant pipe connecting flange according to claim 6, characterized in that: The outer surface of the fixing column (804) is connected with a second spring (805), the sleeve plate (806) is connected to the protective sleeve (3) through the second spring (805), and the clamping plate (802) is clamped in the column (801).

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