Anti-rotation precise flange

Abstract

The utility model relates to the technical field of mechanical flanges, in particular to an anti-rotation accurate flange. According to the technical scheme, the flange comprises a flange body fixing plate with the center axis in the left-right direction, overall fastening connecting holes which are evenly distributed in the circumferential direction are formed in the flange body fixing plate in the left-right direction, and a first matched connecting column which is integrally formed is arranged on the right side of the flange body fixing plate; the left side of the flange main body fixing plate is provided with an integrally-formed second matching connecting column, and the flange is characterized in that an integrally-formed conical first sealing combination column is arranged at the position, connected with the flange main body fixing plate, of the left side of the first matching connecting column. The flange piece has the advantages that the limiting grooves distributed circumferentially are formed in the two ends of the flange piece, it can be guaranteed that the flange piece and a connecting structure can be accurately matched in the matching process, the anti-rotation effect is achieved in the later use process, the acting force in the circumferential direction is larger, and the overall matching stability is better.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical flanges, in particular to an anti-rotation precision flange. Background Art

[0002] There are many types of flanges in mechanical components. When connected and installed, they are usually fastened with fastening bolts. When the two sides of the flange are combined with the matching pipe fittings, they are directly combined together by inserting them into the flange, or clamped together with fastening accessories. There is a risk of rotation in the circumferential direction of the connection position, and the tightness of the connection during use is difficult to ensure. In addition, the force in the circumferential direction is relatively small, and the stability of the connection position during use is relatively poor. Utility Model Content

[0003] The purpose of the utility model is to provide an anti-rotation precision flange, which adopts a new structural design. By arranging circumferentially distributed limit grooves at both ends of the flange, it can ensure that it can be accurately matched with the connecting structure during matching. It has an anti-rotation effect in later use, which makes the force in the circumferential direction greater and the overall matching stability better. In addition, through the sealing structure arranged on both sides, it can have reliable sealing performance when matching and connecting, has higher safety and longer service life during use, can also meet the connection combination requirements of anti-rotation matching, and has a wider range of applications when used.

[0004] The technical solution of the utility model is as follows:

[0005] A precision anti-rotation flange, comprising a flange main body fixing plate with a central axis in the left and right directions, the flange main body fixing plate is provided with integral fastening connection holes evenly distributed in a circumference in the left and right directions, the flange main body fixing plate is provided with an integrally formed first matching connection column on the right side, and the flange main body fixing plate is provided with an integrally formed second matching connection column on the left side, characterized in that: an integrally formed conical first sealing combination column is provided at the position where the left side of the first matching connection column is connected to the flange main body fixing plate, a second sealing combination groove with a circular arc cross-section is provided on the side of the outer cylindrical surface of the second matching connection column close to the flange main body fixing plate, a center matching connection hole is respectively provided at the center position of the right side of the first matching connection column and the left side of the second matching connection column, a center avoidance matching groove is provided on the inner side surface in the left and right directions of the center matching connection hole, and a main body installation stabilizing limit groove evenly distributed in a circumference and opening toward the outer cylindrical surface of the first matching connection column is respectively provided on the right side of the first matching connection column and the left side of the second matching connection column.

[0006] Furthermore, the main body installation stabilizing limit groove is an arc-shaped structure, and the size of the main body installation stabilizing limit groove at the outer side is larger than the size of the inner side.

[0007] Furthermore, a rounded corner avoidance structure is provided at the outer edge of the central avoidance groove.

[0008] Furthermore, the right side of the first mating connecting column and the left side of the second mating connecting column are respectively provided with mating chamfered structures for easy installation.

[0009] Beneficial effects of the utility model:

[0010] The utility model adopts a new structural design, and by arranging circumferentially distributed limit grooves at both ends of the flange, it can ensure accurate cooperation with the connecting structure during cooperation, and has an anti-rotation effect in later use, so that the force in the circumferential direction is greater, and the overall cooperation stability is better. In addition, through the sealing structure arranged on both sides, it can have reliable sealing performance when the cooperation connection is carried out, and it is safer and longer in service life during use. It can also meet the connection combination requirements of anti-rotation cooperation, and has a wider range of applications during use, which can meet the flange combination connection requirements in a variety of different application environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0012] Figure 2 It is a front schematic diagram of the utility model;

[0013] Figure 3 It is a left side schematic diagram of the utility model;

[0014] Figure 4 It is a schematic diagram of the right side of the utility model;

[0015] Figure 5 It is a top view schematic diagram of the utility model;

[0016] Figure 6 It is a cross-sectional schematic diagram of the utility model at position AA;

[0017] Figure 7 It is a schematic diagram of the three-dimensional structure of the utility model in the second direction;

[0018] In the figure: 1. Flange body fixing plate, 2. Integral fastening connection hole, 3. First matching connection column, 4. First sealing combination column, 5. Second matching connection column, 6. Second sealing combination groove, 7. Center matching connection hole, 8. Center avoidance matching groove, 9. Main body installation stable limit groove. DETAILED DESCRIPTION

[0019] like Figures 1 to 7As shown, an anti-rotation precision flange comprises a flange body fixing plate 1 with a central axis in the left and right directions, and the flange body fixing plate 1 is provided with integral fastening connection holes 2 evenly distributed in the circumference in the left and right directions, and the integral fastening connection during installation is performed through the fastening bolts at this position. The right side of the flange body fixing plate 1 is provided with an integrally formed first matching connection column 3, and the left side of the flange body fixing plate 1 is provided with an integrally formed second matching connection column 5, and the integral installation and matching of the flange is performed through the two matching connection columns. The left side of the first matching connection column 3 is provided with an integrally formed conical first sealing combination column 4 at the position where it is connected to the flange body fixing plate 1, and the outer cylindrical surface of the second matching connection column 5 is provided with a second sealing combination groove 6 with a circular arc cross section on the side close to the flange body fixing plate 1, which can be used to cooperate with the sealing ring for sealing connection on both sides, ensuring that the overall sealing stability during matching is more reliable. The right side of the first matching connection column 3 and the left side of the second matching connection column 5 are respectively provided with a central matching connection hole 7 at the center position of the end surface, through which it can be set together with the inner tube. It can also be matched with the internal parts of mechanical parts. A central avoidance matching groove 8 is provided on the inner side surface in the left and right directions of the central matching connection hole 7, which plays a role of avoidance matching during internal installation, so that there is a larger space inside. The right side of the first matching connection column 3 and the left side end surface of the second matching connection column 5 are respectively provided with main body installation stabilizing limit grooves 9 that are evenly distributed around the circumference and open toward the outer cylindrical surface of the first matching connection column 3, which can be accurately limited with the structure of the matching position or the auxiliary fastening component of the matching position, so that the circumferential direction has a reliable anti-rotation effect, and at the same time can effectively improve the matching force in the circumferential direction, so that the overall durability in later use is stronger. This product can be used as a pipeline connection flange, and can also be used as a mechanical component for installation during connection. It has a wide range of applications and a relatively low cost. It adopts a new structural design. By setting circumferentially distributed limit grooves at both ends of the flange, it can ensure precise fit with the connecting structure during mating. It has an anti-rotation effect in later use, which makes the force in the circumferential direction greater and the overall mating stability better. In addition, through the sealing structure set on both sides, it can have reliable sealing performance when mating and connecting. It is safer and has a longer service life. It can also meet the connection combination requirements of anti-rotation mating and has a wider range of applications.

[0020] Preferably, the main body installation stabilization limit groove 9 is an arc-shaped structure, and the size of the outer position of the main body installation stabilization limit groove 9 is larger than the size of the inner position, making this position more convenient during production and processing, and when matching, ensuring that the space at the outer position is larger and the matching operation is more convenient.

[0021] Preferably, a rounded corner structure for avoiding positioning is provided at the outer edge of the central avoiding positioning groove 8, so that the avoiding positioning space is larger when performing internal avoiding positioning.

[0022] Preferably, the right side of the first mating connecting column 3 and the left side of the second mating connecting column 5 are respectively provided with mating chamfer structures for easy installation, so that the outer side position has better mating smoothness when being fitted and connected with the installation pipe component.

[0023] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements or substitutions can be made without departing from the principles of the present invention. These improvements or substitutions should also be regarded as the protection scope of the present invention.

Claims

1. An anti-rotation precision flange, comprising a flange main body fixing plate (1) with a central axis in the left-right direction, the flange main body fixing plate (1) is provided with integral fastening connection holes (2) evenly distributed in the circumference in the left-right direction, the flange main body fixing plate (1) is provided with an integrally formed first matching connection column (3) on the right side, and the flange main body fixing plate (1) is provided with an integrally formed second matching connection column (5) on the left side, characterized in that: An integrally formed conical first sealing assembly column (4) is provided at the position where the left side of the first matching connection column (3) is connected to the flange main body fixing plate (1); a second sealing assembly groove (6) with a circular arc cross section is provided on the side of the outer cylindrical surface of the second matching connection column (5) close to the flange main body fixing plate (1); a center matching connection hole (7) is provided at the center position of the right side of the first matching connection column (3) and the left side of the second matching connection column (5); a center avoidance matching groove (8) is provided on the inner side surface of the center matching connection hole (7) in the left and right directions; and main body installation stabilizing limit grooves (9) that are evenly distributed around the circumference and open toward the outer cylindrical surface of the first matching connection column (3) are provided on the right side of the first matching connection column (3) and the left side of the second matching connection column (5).

2. The anti-rotation precision flange according to claim 1, characterized in that: The main body installation stabilizing limit groove (9) is an arc-shaped structure, and the size of the outer side of the main body installation stabilizing limit groove (9) is larger than the size of the inner side.

3. The anti-rotation precision flange according to claim 1, characterized in that: The outer edge of the central avoidance matching groove (8) is provided with an avoidance matching rounded corner structure.

4. The anti-rotation precision flange according to claim 1, characterized in that: The right side of the first matching connecting column (3) and the left side of the second matching connecting column (5) are respectively provided with matching chamfered structures for easy installation.

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