Flange assembly capable of effectively protecting inner wall chemical film

Abstract

The utility model relates to a flange assembly capable of effectively protecting an inner wall chemical film. The flange assembly comprises a flange body, a sleeving piece and a plurality of inserting columns. A chemical film is arranged on the inner wall of the flange body; annular planes are arranged at the positions, close to the ends of the flange body, of the outer wall of the flange body, and connecting through holes are formed in each annular plane in an annular array mode. A protruding block is arranged on the outer wall of the flange body, and a plurality of runner holes are evenly formed in the protruding block. The sleeving piece comprises two cover plates and a connecting column; the two cover plates respectively cover the corresponding end openings of the flange body; a through hole is formed in the center of the cover plate, and a bolt is inserted into the through hole; the connecting column is located between the two cover plates, a threaded hole is formed in the connecting column and penetrates through the two ends of the connecting column, and the bolts on the two cover plates are connected into the threaded hole of the connecting column in a threaded mode; and the inserting columns are respectively inserted into the corresponding runner holes. The sleeving pieces can be quickly assembled at the two ends of the flange body, and the chemical film on the inner wall of the flange body can be protected.

Description

Technical Field

[0001] The utility model relates to the technical field of metal processing and manufacturing, in particular to a flange component which can effectively protect an inner wall chemical film. Background Art

[0002] A flange is a ring-shaped component used to connect pipes, valves, pumps, and other equipment or components. It typically has bolt holes, allowing fasteners such as bolts and nuts to achieve a tight connection between components. Flanges play a crucial role in industrial production, and their design and use are directly related to the safety and stability of mechanical systems. The primary function of a flange is to connect pipes, valves, and other equipment or components. They are typically used for threaded flanges on low-pressure pipelines and welded flanges on high-pressure pipelines. Flanges for different pressures have different thicknesses and use different bolt types. Gaskets are often used to seal the flanges to ensure a tight and secure connection.

[0003] In some special occasions, the inner wall of the pipeline flange needs to be chemically treated to form a chemical film layer to play an anti-corrosion role without affecting the size of the inner wall. During the transportation of the flange, the chemical film layer on the inner wall is easily damaged by external foreign matter, thereby affecting the corrosion resistance of the inner wall.

[0004] It is hoped to provide a flange assembly that effectively protects the inner wall chemical film, so as to solve the above technical problems. Utility Model Content

[0005] The purpose of the utility model is to provide a flange assembly which can effectively protect the chemical film on the inner wall. The sleeve can be quickly assembled on both ends of the flange body to protect the chemical film on the inner wall.

[0006] In order to achieve the purpose of the above utility model, a flange assembly is provided for effectively protecting the inner wall chemical film, including a flange body, a sleeve and a plurality of plug-in columns;

[0007] The inner wall of the flange body is provided with a chemical film;

[0008] The outer wall of the flange body is provided with an annular plane near its end, and each of the annular planes is provided with connecting through holes in an annular array;

[0009] The outer wall of the flange body is provided with a protrusion, and a plurality of flow channel holes are evenly provided on the protrusion, and the flow channel holes are connected to the inner cavity of the flange body;

[0010] The sleeve includes two cover plates and a connecting column;

[0011] The two cover plates are respectively adapted to the end openings of the corresponding flange bodies, and the two cover plates are respectively covered on the corresponding end openings of the flange bodies;

[0012] The center of the cover plate is provided with a through hole, and a bolt is inserted into the through hole;

[0013] The connecting column is located between the two cover plates, and has a threaded hole on the connecting column. The threaded hole passes through both ends of the connecting column, and the bolts on the two cover plates are respectively threadedly connected to the threaded holes of the connecting column;

[0014] The number of the plug-in posts matches the flow channel holes, and the plug-in posts are respectively plugged into the corresponding flow channel holes.

[0015] Preferably, an anodized layer is provided on the outer wall of the flange body.

[0016] Preferably, the number of the flow channel holes is 3.

[0017] Preferably, a sealing ring is sleeved on the curved surface of the cover plate.

[0018] Preferably, the outer wall of the plug-in column is provided with a rubber layer.

[0019] The utility model discloses a flange assembly that effectively protects the inner wall chemical film, which has the following advantages compared with the prior art:

[0020] (1) By assembling the sockets at both ends of the flange body and inserting the plug-in column on the flow channel hole, the chemical film on the inner wall of the flange body can be protected to avoid damage during transportation;

[0021] (2) Simple design and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural schematic diagram of a flange assembly that effectively protects the inner wall chemical film of this embodiment;

[0023] Figure 2 Schematic diagram of the structure of the flange body in this embodiment;

[0024] Figure 3 is a partial cross-sectional schematic diagram of the flange body in this embodiment;

[0025] Figure 4 The structure of the cover plate in this embodiment is schematically shown. Figure 1 ;

[0026] Figure 5 This is a schematic structural diagram of a cover plate connected to bolts and connecting columns in this embodiment;

[0027] Figure 6 Schematic diagram of the structure of the socket in this embodiment;

[0028] Figure 7The structure of the cover plate in this embodiment is schematically shown. Figure 2 . DETAILED DESCRIPTION

[0029] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0030] like Figure 1 As shown, a flange assembly for effectively protecting the inner wall chemical film includes a flange body 1, a sleeve 2 and a plurality of plug-in columns 3.

[0031] like Figure 2 As shown, the inner wall of the flange body 1 is provided with a chemical film 4 to play an anti-corrosion role. When corrosive media flows through the inner wall, the above chemical film plays an anti-corrosion role without affecting the inner wall size of the flange body 1.

[0032] like Figure 3 As shown, an anodic oxide layer 5 is provided on the outer wall of the flange body 1 to prevent the flange body 1 from corrosion. The anodic oxide layer 5 is harder than the chemical film and is difficult to be damaged by the external environment.

[0033] The outer wall of the flange body 1 is provided with an annular plane 6 near its end, and each of the annular planes 6 is provided with connecting through holes 7 in an annular array to facilitate connection with an external pipeline.

[0034] The outer wall of the flange body 1 is provided with a protruding block 8 , and a plurality of flow channel holes 9 are evenly provided on the protruding block 8 . The flow channel holes 9 are communicated with the inner cavity of the flange body 1 .

[0035] In this embodiment, the number of the flow channel holes 9 is 3.

[0036] like Figure 6 As shown, the sleeve 3 includes two cover plates 10 and a connecting column 11; the two cover plates 10 are respectively adapted to the end openings of the corresponding flange body 1, and the two cover plates 10 are respectively covered on the corresponding end openings of the flange body 1; Figure 4 As shown, the center of the cover plate 10 has a through hole 12. Figure 5 As shown, a bolt 13 is inserted into the through hole 12; the connecting column 11 is located between the two cover plates 10, and the connecting column 11 has a threaded hole 14, which passes through both ends of the connecting column 11, and the bolts 13 on the two cover plates 10 are respectively threadedly connected to the threaded holes 14 of the connecting column 11.

[0037] In this embodiment, if Figure 7 As shown, a sealing ring 15 is sleeved on the curved surface of the cover plate 10 , and such an arrangement can achieve better sealing for the end of the flange body 1 .

[0038] The number of the plug-in posts 3 matches the flow channel holes 9 , and the plug-in posts 3 are respectively plugged into the corresponding flow channel holes 9 .

[0039] In this embodiment, the outer wall of the plug-in column 3 has a rubber layer (not shown in the figure) to avoid rigid contact with the flow channel hole 9 and to better seal the flow channel hole 9.

[0040] When transporting the above-mentioned flange body, the plug-in columns 3 are respectively inserted into the flow channel holes 9 to seal the flow channel holes 9, a cover plate is covered on the end of the flange body 1, and bolts are inserted, the connecting column is placed in the flange body 1, and is threadedly connected with the bolts on the cover plate covered on the flange body, and then another cover plate is covered, and another bolt is inserted into the above-mentioned cover plate, and the other bolt is threadedly connected with the connecting column 11, so as to achieve full sealing of the flange body 1 and effectively protect the chemical layer inside the flange body.

[0041] The preferred embodiments of the present invention have been specifically described above, but the present invention is not limited to the described embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all within the scope defined by the claims of this application.

Claims

1. A flange assembly that effectively protects the inner wall chemical film, characterized in that: It includes a flange body, a sleeve and a number of plug-in columns; The inner wall of the flange body is provided with a chemical film; The outer wall of the flange body is provided with an annular plane near its end, and each of the annular planes is provided with connecting through holes in an annular array; The outer wall of the flange body is provided with a protrusion, and a plurality of flow channel holes are evenly provided on the protrusion, and the flow channel holes are connected to the inner cavity of the flange body; The sleeve includes two cover plates and a connecting column; The two cover plates are respectively adapted to the end openings of the corresponding flange bodies, and the two cover plates are respectively covered on the corresponding end openings of the flange bodies; The center of the cover plate is provided with a through hole, and a bolt is inserted into the through hole; The connecting column is located between the two cover plates, and has a threaded hole on the connecting column. The threaded hole passes through both ends of the connecting column, and the bolts on the two cover plates are respectively threadedly connected to the threaded holes of the connecting column; The number of the plug-in posts matches the flow channel holes, and the plug-in posts are respectively plugged into the corresponding flow channel holes.

2. A flange assembly for effectively protecting the inner wall chemical film according to claim 1, characterized in that: An anodized layer is provided on the outer wall of the flange body.

3. A flange assembly for effectively protecting the inner wall chemical film according to claim 1, characterized in that: The number of the flow channel holes is 3.

4. A flange assembly for effectively protecting the inner wall chemical film according to claim 1, characterized in that: A sealing ring is sleeved on the curved surface of the cover plate.

5. A flange assembly for effectively protecting the inner wall chemical film according to any one of claims 1 to 4, characterized in that: The outer wall of the plug-in column is provided with a rubber layer.

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