Flange convenient to position

Abstract

The flange convenient to position comprises an annular body and a semi-annular gasket, a plurality of assembly holes are formed in the body, a plurality of installation holes are formed in the gasket, the number of the installation holes is equal to 1 / 2 of the number of the assembly holes, a first protruding block is arranged on the face, facing the body, of the gasket, and a second protruding block is arranged on the face, facing the body, of the gasket. The surface, opposite to the body, of the gasket is provided with a second protruding block corresponding to the first protruding block, the surface, facing the gasket, of the body is provided with a first groove complementary with the first protruding block in shape and a second groove complementary with the second protruding block in shape, and during connection, the first protruding block is matched with the first groove, and the second protruding block is matched with the second groove in the other body. Through cooperation of the first groove and the first protruding block and cooperation of the second groove and the second protruding block, when flanges are connected, the body and the gasket do not move relatively, and the sealing performance after the flanges are connected is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of flange, specifically relates to a flange convenient to position. BACKGROUND

[0002] Flange, also called flange flange plate or lug, is the connecting part between pipes, and is usually used for the connection between two pipe ends. The flange usually comprises a body and an assembly hole arranged on the body. Flange connection refers to the detachable connection of a combined sealing structure formed by a flange, a gasket and a bolt.

[0003] When the flanges are connected, the assembly holes of the two flanges need to be aligned and the gasket is placed between the two flanges, and then the bolt is tightened. During the tightening of the bolt, the flanges and the gasket are prone to relative movement, which affects the tightening of the bolt and the work efficiency. After the connection is completed, there may also be a problem of poor sealing, especially for flanges with a large inner diameter. The gasket used is usually composed of two semicircular half-gaskets. During the tightening of the bolt, the half-gaskets are more likely to move and the problem of poor sealing after connection is more likely to occur. SUMMARY

[0004] In order to overcome the shortcomings of the prior art, the utility model provides a flange which is more convenient to position during connection than the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the technical scheme: a flange convenient to position, comprising a ring-shaped body, a plurality of assembly holes are arranged on the body, further comprising a semicircular gasket, a plurality of mounting holes are arranged on the gasket, the number of mounting holes is equal to 1 / 2 the number of assembly holes, a protrusion one is arranged on the surface of the gasket facing the body, a protrusion two corresponding to the protrusion one is arranged on the surface of the gasket away from the body, and a recess one complementary to the shape of the protrusion one and a recess two complementary to the shape of the protrusion two are arranged on the surface of the body facing the gasket.

[0006] By adopting the above-mentioned scheme, during connection, the protrusion one cooperates with the recess one, the protrusion two cooperates with the recess two on the other body, through the cooperation of the recess one and the protrusion one and the cooperation of the recess two and the protrusion two, the relative movement between the body and the gasket during flange connection is avoided, and the sealing performance of the flange after connection is ensured.

[0007] As a further setting of the utility model, the shapes of the protrusion one and the protrusion two are consistent, the number and shape of the recess one and the recess two are consistent, and the recess one and the recess two are at least two; along the circumference of the body, the distance between adjacent recess ones is equal to the distance between adjacent recess twos, and the distance between adjacent recess ones is equal to the distance between the recess one closest to the recess two and the adjacent recess two.

[0008] The gasket and the body are matched without needing to search for a specific angle, and the flange connection is more convenient.

[0009] The recess one is arranged along the circumference of the body, and the center of the recess one is coincident with the center of the body.

[0010] The protrusion one is aligned with the recess one or the recess two.

[0011] The recess one is provided with the guide groove one extending along the circumference of the body on two opposite sides, the depth of the guide groove one gradually increases from the side far away from the recess one to the side close to the recess one, the maximum depth of the guide groove one is less than or equal to 1 / 2 of the depth of the recess one, and the recess two is provided with the guide groove two consistent with the shape of the guide groove one on two opposite sides.

[0012] The protrusion one is guided into the recess one or the recess two, and the protrusion two is guided into the recess one or the recess two of another body.

[0013] The protrusion one and the protrusion two are located between the two mounting holes, and the protrusion one and the protrusion two are located on the side of the mounting hole close to the inner diameter of the gasket.

[0014] The strength of the body is ensured, and the lengths of the recess one, the recess two, the guide groove one and the guide groove two along the circumference of the body are ensured.

[0015] The gasket comprises the abutting surface one and the abutting surface two, the sealing block extending along the circumference of the gasket is arranged on the abutting surface one, and the sealing groove complementary to the shape of the sealing block is arranged on the abutting surface two.

[0016] The sealing block on the gasket is matched with the sealing groove on another gasket, the relative movement of the gaskets on two bodies is prevented when the flange is connected, the labyrinth seal is realized, and the sealing effect of the flange connection is better.

[0017] The sealing block is located between the two mounting holes, and the sealing groove is located between the two mounting holes when the protrusion one is matched with the recess one or the recess two.

[0018] The sealing effect is better.

[0019] The utility model is further described below in combination with the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0020] ATTACH Figure 1 It is whole schematic view of embodiment of the utility model;

[0021] Figure 1 is a schematic view of the body of the embodiment of the present application; Figure 2 Figure 1 is a schematic view of the body of the embodiment of the present application;

[0022] Figure 1 is a schematic view of the body of the embodiment of the present application; Figure 3 Figure 1 is a schematic view of the body of the embodiment of the present application;

[0023] Body 1, assembly hole 11, groove one 12, groove two 13, guide groove one 14, guide groove two 15, gasket 2, mounting hole 21, protrusion one 22, protrusion two 23, abutting surface one 24, abutting surface two 25, sealing block 26, sealing groove 27. DETAILED DESCRIPTION

[0024] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] In the description of the present application, it should be noted that, unless otherwise specified, the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like in the description are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting the devices or elements indicated to have a particular direction, to be constructed and operated in a particular direction, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" appear only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0026] The specific embodiments of the present application are shown in the drawings.

[0027] A flange convenient to position, comprising a ring-shaped body 1 and a semi-ring-shaped gasket 2, a plurality of assembly holes 11 are arranged on the body 1, a plurality of mounting holes 21 are arranged on the gasket 2, the number of mounting holes 21 is equal to 1 / 2 the number of assembly holes 11, in the embodiment, eight assembly holes 11 are arranged on the body 1, four mounting holes 21 are arranged on the gasket 2, protrusion one 22 is arranged on the surface of the gasket 2 facing the body 1, protrusion two 23 corresponding to protrusion one 22 is arranged on the surface of the gasket 2 away from the body 1, recess one 12 complementary to the shape of protrusion one 22 and recess two 13 complementary to the shape of protrusion two 23 are arranged on the surface of the body 1 facing the gasket 2.

[0028] The protrusion one 22 and the protrusion two 23 are consistent in shape, the number and shape of the groove one 12 and the groove two 13 are consistent, and in the embodiment, the groove one 12 and the groove two 13 are both two; along the circumference of the body 1, the distance between adjacent grooves one 12 is equal to the distance between adjacent grooves two 13, and the distance between adjacent grooves one 12 is equal to the distance between the groove one 12 closest to the groove two 13 and the adjacent groove two 13. When the gasket 2 is matched with the body 1, it is not necessary to find a specific angle, and it is more convenient for flange connection.

[0029] When connected, the protrusion one 22 is matched with the groove one 12 or the groove two 13, and the protrusion two 23 is matched with the groove one 12 or the groove two 13 on the other body 1. Through matching, the relative movement between the body 1 and the gasket 2 does not occur when the flange is connected, and the sealing performance after the flange connection is guaranteed.

[0030] The groove one 12 is curvedly arranged along the circumference of the body 1, and the center of the groove one 12 coincides with the center of the body 1. It is convenient for the protrusion one 22 to align with the groove one 12 or the groove two 13.

[0031] The groove one 12 is provided with a guide groove one 14 extending along the circumference of the body 1 on the opposite sides, and the depth of the guide groove one 14 gradually increases from the side away from the groove one 12 to the side close to the groove one 12. In the embodiment, the maximum depth of the guide groove one 14 is equal to 1 / 2 of the depth of the groove one 12, and the groove two 13 is provided with a guide groove two 15 consistent in shape with the guide groove one 14. It is convenient to guide the protrusion one 22 into the groove one 12 or the groove two 13, and it is convenient to guide the protrusion two 23 into the groove one 12 or the groove two 13 of the other body 1.

[0032] The protrusion one 22 and the protrusion two 23 are both located between the two mounting holes 21, and the protrusion one 22 and the protrusion two 23 are both located on the side of the mounting hole 21 close to the inner diameter of the gasket 2. The strength of the body 1 is guaranteed, and the length of the groove one 12, the groove two 13, the guide groove one 14 and the guide groove two 15 along the circumference of the body 1 is guaranteed.

[0033] The gasket 2 includes an abutting surface one 24 and an abutting surface two 25, the abutting surface one 24 is provided with a sealing block 26 extending along the circumference of the gasket 2, and the abutting surface two 25 is provided with a sealing groove 27 complementary in shape to the sealing block 26. The sealing block 26 on the gasket 2 is matched with the sealing groove 27 on the other gasket 2, which prevents the relative movement of the gaskets 2 on the two bodies 1 during the flange connection, realizes the labyrinth seal, and makes the sealing effect of the flange connection better.

[0034] When the protrusion one 22 is matched with the groove one 12 or the groove two 13, the sealing block 26 is located between the two mounting holes 11, and the sealing groove 27 is located between the two mounting holes 11. The sealing effect is better.

[0035] The utility model is not limited to the above specific embodiment, and the person skilled in the art can adopt other various specific embodiments to implement the utility model according to the content disclosed by the utility model, or all fall into the protection scope of the utility model as long as the design structure and the thought of the utility model are adopted, simple change or change is made.

Claims

1. A flange for easy positioning comprising a ring-shaped body provided with a plurality of assembly holes, characterized in that: The gasket is semi-circular, and a plurality of mounting holes are arranged on the gasket, the number of the mounting holes is equal to 1 / 2 the number of the assembly holes, a protrusion one is arranged on the surface of the gasket facing the body, a protrusion two corresponding to the protrusion one is arranged on the surface of the gasket away from the body, and a recess one complementary to the protrusion one and a recess two complementary to the protrusion two are arranged on the surface of the body facing the gasket.

2. A conveniently positionable flange according to claim 1, characterized in that: The protrusion one and the protrusion two are consistent in shape, the recess one and the recess two are consistent in number and shape, and the recess one and the recess two are at least two; along the circumference of the body, the distance between adjacent recess ones is equal to the distance between adjacent recess twos, and the distance between the recess one closest to the recess two and the recess two adjacent to the recess one is equal.

3. A conveniently positionable flange according to claim 2, characterized in that: The recess one is arranged in a curved manner along the circumference of the body, and the center of the recess one coincides with the center of the body.

4. A conveniently positionable flange according to claim 3, wherein: The recess one is provided with a guide groove one extending along the circumference of the body on the opposite sides of the recess one, the depth of the guide groove one gradually increases from the side away from the recess one to the side close to the recess one, the maximum depth of the guide groove one is less than or equal to 1 / 2 the depth of the recess one, and the recess two is provided with a guide groove two consistent in shape with the guide groove one on the opposite sides of the recess two.

5. A conveniently positionable flange according to claim 4, wherein: The protrusion one and the protrusion two are located between the two mounting holes, and the protrusion one and the protrusion two are located on the side of the mounting hole close to the inner diameter of the gasket.

6. A conveniently positionable flange according to claim 5, wherein: The gasket comprises an abutting surface one and an abutting surface two, the abutting surface one is provided with a sealing block extending along the circumference of the gasket, and the abutting surface two is provided with a sealing groove complementary in shape to the sealing block.

7. A conveniently positionable flange according to claim 6, characterized in that: When the protrusion one cooperates with the recess one or the recess two, the sealing block is located between the two assembly holes, and the sealing groove is located between the two assembly holes.

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