CN217401995U

CN217401995U - Non-pad flange

Info

Publication number: CN217401995U
Application number: CN202221119308.4U
Authority: CN
Inventors: 朱建文; 于泉
Original assignee: QINGDAO GAOYUAN THERMAL ENERGY POWER EQUIPMENT CO Ltd
Current assignee: QINGDAO GAOYUAN THERMAL ENERGY POWER EQUIPMENT CO Ltd
Priority date: 2022-05-11
Filing date: 2022-05-11
Publication date: 2022-09-09
Anticipated expiration: 2032-05-11

Abstract

The utility model provides a no pad flange, include: the inner end surface of the concave flange is arranged in a spherical shape; the inner end surface of the convex flange is arranged in a conical surface, and the conical surface is abutted with the spherical surface; the outer end face of the concave flange and the outer end face of the convex flange are buckled; set up through screw fixed connection between concave flange and the convex flange, borrow this, the utility model discloses when utilizing the screw to tighten, compress tightly between sphere and the conical surface, produce slight impression on the conical surface to realize good sealed effect, the utility model discloses still through the lock setting between the outer terminal surface of concave flange outer terminal surface and the outer terminal surface of convex flange, guaranteed the flange at dismouting in-process impression coincidence, do not produce new impression promptly, thereby guaranteed the sealed effect after the dismouting, improved the packaging efficiency when assembling simultaneously.

Description

Non-pad flange

Technical Field

The utility model belongs to the technical field of the flange, in particular to no pad flange.

Background

At present, a flange connection structure is a combined unit, and generally comprises a connecting piece (screw), a connected piece (flange) and a sealing element (gasket). Its function is to ensure a tight connection, no leakage and sufficient strength. Conventional flanges rely on the resilience of a sealing element, i.e. a gasket, between the two flanges to effect a seal when joining pipes (as shown in figure 1).

However, the gasket has the problems of difficult installation and easy damage, the replacement of the gasket not only increases the cost, but also increases the difficulty of manual operation, and the gasket also has the problems of poor sealing effect and easy leakage.

SUMMERY OF THE UTILITY MODEL

The utility model provides a no pad flange has solved above-mentioned problem.

The technical scheme of the utility model is realized like this: a gasket-less flange comprising:

the inner end surface of the concave flange is arranged in a spherical shape;

the inner end surface of the convex flange is arranged in a conical surface, and the conical surface is abutted with the spherical surface;

the outer end face of the concave flange and the outer end face of the convex flange are buckled;

the concave flange and the convex flange are fixedly connected through screws.

In a preferred embodiment, the inner side of the female flange protrudes in the direction of the male flange to form an annular inner protrusion, and the outer side wall of the annular inner protrusion is spherically disposed.

As a preferable embodiment, the inner side surface of the convex flange is provided with an annular concave part, the inner side wall of the annular concave part is in a conical surface arrangement, and the outer side wall of the annular inner convex part is abutted with the inner side wall of the annular concave part.

As a preferred embodiment, the outer end of the concave flange is provided with a first screw hole therethrough, and the outer end of the convex flange is provided with a second screw hole therethrough, wherein the screws are disposed through the first screw hole and the second screw hole.

As a preferred embodiment, the inside wall of concave flange outer end is provided with the location bulge, the inside wall of convex flange outer end is provided with the location depressed part, and the location depressed part is the stairstepping setting, looks lock between location bulge and the location depressed part.

As a preferred embodiment, a first groove is arranged at the butt welding position of the outer side wall of the concave flange and the pipeline, a second groove is arranged at the butt welding position of the outer side wall of the convex flange and the pipeline, and both the first groove and the second groove are inclined planes.

After the technical scheme is adopted, the beneficial effects of the utility model are that:

the utility model discloses when the through screw was tightened in first screw hole and the second screw hole, compress tightly between the lateral wall of convex part and the inside wall of the interior concave part of annular in the annular, can produce slight impression on the conical surface to realize good sealed effect.

The utility model discloses a block setting between location bulge and the location depressed part has guaranteed that the flange is at dismouting in-process impression coincidence, does not produce new impression promptly to sealed effect after having guaranteed the dismouting, packaging efficiency when having improved the equipment simultaneously.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.

FIG. 1 is a prior art schematic;

fig. 2 is a schematic structural diagram of the present invention.

In the figures, 1-female flange; 2-a convex flange; 10-an annular inner protrusion; 11-sphere; 12-a first screw hole; 13-a positioning projection; 14-a first bevel; 20-an annular inner recess; 21-a conical surface; 22-a second screw hole; 23-positioning the recess; 24-second bevel.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 2, a gasket-less flange includes:

the inner end surface of the concave flange 1 is arranged in a spherical surface 11;

the inner end surface of the convex flange 2 is arranged in a conical surface 21, and the spherical surface is abutted with the conical surface;

the outer end face of the concave flange 1 and the outer end face of the convex flange 2 are buckled;

the concave flange 1 and the convex flange 2 are fixedly connected through screws.

The inner side of the concave flange 1 protrudes towards the convex flange to form an annular inner convex part 10, and the outer side wall of the annular inner convex part 10 is arranged in a spherical surface 11.

The medial surface of convex flange 2 is provided with annular inner concave part 20, and the inside wall of annular inner concave part 20 is the setting of conical surface 21, looks butt between the lateral wall of convex part 10 and the inside wall of annular inner concave part 20 in the annular.

The outer end of concave flange 1 is provided with first screw hole 12 that link up, the outer end of convex flange 2 is provided with second screw hole 22 that link up, the screw runs through first screw hole 12 and the setting of second screw hole 22.

The inside wall of 1 outer end of concave flange is provided with location bulge 13, the inside wall of 2 outer ends of convex flange is provided with location depressed part 23, and the lock sets up between location bulge 13 and the location depressed part 23.

The butt welding position of the outer side wall of the concave flange 1 and the pipeline is provided with a first groove 14, the butt welding position of the outer side wall of the convex flange 2 and the pipeline is provided with a second groove 24, and the first groove 14 and the second groove 24 are inclined planes.

The utility model discloses when passing through the screw in first screw hole 12 and second screw hole 22 and tighten, compress tightly between the lateral wall of convex part 10 in the annular and the inside wall of annular interior concave part 20, concave flange 1 and convex flange 2 adopt the same material, can produce slight impression on the conical surface 21 to realize good sealed effect.

The utility model discloses a block setting between location bulge 13 and the location depressed part 23 has guaranteed that the flange is at dismouting in-process impression coincidence, does not produce new impression promptly to sealed effect after having guaranteed the dismouting has improved the packaging efficiency when assembling simultaneously.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, mechanically or electrically connected, or may be connected between two elements through an intermediate medium, or may be directly connected or indirectly connected, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A gasket-less flange, comprising:

the inner end surface of the concave flange is arranged in a spherical shape;

the concave flange and the convex flange are fixedly connected through screws.

2. The gasket-less flange as claimed in claim 1, wherein the inner side of said female flange is protruded toward said male flange to form an annular inner protrusion, and the outer side wall of said annular inner protrusion is spherically disposed.

3. The gasket-free flange as claimed in claim 2, wherein the inner side surface of the convex flange is provided with an annular concave part, the inner side wall of the annular concave part is provided with a conical surface, and the outer side wall of the annular concave part is abutted against the inner side wall of the annular concave part.

4. A gasket-less flange according to claim 1, wherein the outer end of the female flange is provided with a first screw hole therethrough, the outer end of the male flange is provided with a second screw hole therethrough, and the screw is disposed through the first screw hole and the second screw hole.

5. The gasket-less flange as claimed in claim 1, wherein the inner sidewall of the outer end of the female flange is provided with a positioning protrusion, the inner sidewall of the outer end of the male flange is provided with a positioning recess, the positioning recess is formed in a step shape, and the positioning protrusion and the positioning recess are engaged with each other.

6. The gasket-free flange according to claim 1, wherein a first groove is formed at the butt welding position of the outer side wall of the female flange and the pipeline, a second groove is formed at the butt welding position of the outer side wall of the male flange and the pipeline, and the first groove and the second groove are inclined surfaces.