Hard sealing high-pressure self-tightening flange for pipeline

Abstract

The utility model discloses a pipeline hard seal high pressure self-tightening type flange, which comprises a flange total member, the side edge surface of the flange total member is fixedly connected with a second flange, the front surface of the second flange is provided with a second mounting opening in a penetrating manner, the outer ring surface of the flange total member is fixedly connected with a pipeline inserting and clamping plate, and the pipeline inserting and clamping plate is fixedly connected with the flange total member. A first flange is fixedly connected to the surface of the outer ring of the pipeline inserting and clamping plate, a first mounting opening is formed in the front surface of the first flange in a penetrating mode, a fixing block is fixedly connected to the surface of the outer ring of the pipeline inserting and clamping plate, a nut is fixedly connected to the surface of the side edge of the fixing block, and a sealing ring is connected to the front surface of a second flange in a clamped mode. Through the arrangement of the second flange, the second mounting openings formed in the second flange, the first flange and the first mounting openings formed in the first flange, a user can conveniently use and mount the whole flange with bolts.

Description

Technical Field

[0001] The utility model belongs to the technical direction of flanges, and particularly relates to a hard-sealed high-pressure self-tightening flange for pipelines. Background Art

[0002] A flange, also known as a flange convex disc or flange, is a part used for connecting shafts to each other, used for connecting between pipe ends, and also used for flanges at the inlets and outlets of equipment, for connecting between two pieces of equipment, such as a reducer flange. A flange connection or flange joint refers to a detachable connection composed of a flange, a gasket, and bolts connected to each other as a set of combined sealing structures. A pipeline flange refers to a flange used for piping in a pipeline device, and when used on equipment, it refers to the inlet and outlet flanges of the equipment. There are holes on the flange, and bolts are used to tightly connect the two flanges, and the flanges are sealed with gaskets between them. Flanges are divided into threaded connection flanges, welded flanges, and clamp flanges, and flanges are used in pairs. Low-pressure pipelines can use threaded flanges, and welded flanges are used for pressures above four kilograms. When users install pipelines, they need to use self-tightening flanges.

[0003] The following problems exist in the prior art:

[0004] 1. The existing flanges on the market currently have imperfect functions when users need to perform self-tightening installation on pipelines.

[0005] 2. When users need to perform use limit installation on the overall flange, the existing flanges on the market currently need to use auxiliary structures, which will increase the usage cost of users. Content of the Utility Model

[0006] The purpose of the utility model is to provide a hard-sealed high-pressure self-tightening flange for pipelines for the existing device, so as to solve the problems raised in the above background art.

[0007] To solve the above technical problems, the utility model provides the following technical solution: A hard-sealed high-pressure self-tightening flange for pipelines, including a flange general component, a second flange is fixedly connected to the side surface of the flange general component, and a second installation opening is penetrated and opened on the front surface of the second flange.

[0008] A pipeline insertion and clamping plate is fixedly connected to the outer ring surface of the flange general component, and a first flange is fixedly connected to the outer ring surface of the pipeline insertion and clamping plate.

[0009] A first installation opening is penetrated and opened on the front surface of the first flange, a fixing block is fixedly connected to the outer ring surface of the pipeline insertion and clamping plate, a nut is fixedly connected to the side surface of the fixing block, a sealing ring is clamped on the front surface of the second flange, and an insertion opening is opened on the inner ring surface of the pipeline insertion and clamping plate.

[0010] The present utility model is further described as follows. A second installation opening is penetratingly provided on the front surface of the second flange, and the second installation opening is provided in a surrounding manner with the second flange as the center point.

[0011] Adopting the above technical solution, the second installation opening provided in a surrounding manner with the second flange as the center point in this solution can facilitate the user to perform overall use limit installation on the second flange with bolts.

[0012] The present utility model is further described as follows. A second clamping opening is provided in the inner circle of the pipe insertion clamping plate, and the second clamping opening and the flange assembly are of mutually matching sizes.

[0013] Adopting the above technical solution, the second clamping opening with mutually matching sizes with the flange assembly in this solution can facilitate the user to install the pipe insertion clamping plate on the flange assembly.

[0014] The present utility model is further described as follows. A first clamping opening is provided in the inner circle of the front surface of the second flange, and the first clamping opening and the sealing ring are of mutually fitting structures.

[0015] Adopting the above technical solution, the first clamping opening with mutually fitting structures with the sealing ring in this solution can facilitate the user to install the sealing ring on the second flange.

[0016] The present utility model is further described as follows. A threaded rod is limitedly inserted into the inner circle surface of the nut, and the threaded rod is connected between the nut and the fixing block.

[0017] Adopting the above technical solution, the threaded rod connected between the nut and the fixing block in this solution can facilitate the user to connect the fixing block and the threaded rod.

[0018] The present utility model is further described as follows. The fixing block connects the nut and the pipe insertion clamping plate, and the fixing block is symmetrically arranged up and down with the horizontal dividing line of the nut as the symmetry axis.

[0019] Adopting the above technical solution, the fixing block symmetrically arranged up and down with the horizontal dividing line of the nut as the symmetry axis in this solution can facilitate the user to stably install the nut on the pipe insertion clamping plate.

[0020] Compared with the prior art, the beneficial effects achieved by the present utility model are:

[0021] The present utility model provides a hard-sealed high-pressure self-tightening flange for pipelines. Through the mutual cooperation and use of the flange general component, the pipeline insertion and clamping plate, the first installation opening, the first flange, the second flange, the second installation opening, the sealing ring, the first clamping opening, the fixing block, the nut, the threaded rod, the second clamping opening, and the insertion opening, it is convenient for users to use the flange to seal and clamp the pipeline for installation. When the user needs to install and limit the use of the pipeline, the user needs to insert the pipeline into the insertion opening formed in the inner ring of the pipeline insertion and clamping plate. Then, the user needs to turn the threaded rod, and through the limitation of the threaded rod by the provided nut, the user can clamp the pipeline. In this way, the user can clamp and install between the pipeline insertion and clamping plate and the pipeline, and thus the user can perform self-tightening installation on the flange and the pipeline, meeting the user's need for self-tightening installation.

[0022] The present utility model provides a hard-sealed high-pressure self-tightening flange for pipelines. Through the provided second flange and the multiple second installation openings formed thereon, as well as the first flange and the multiple first installation openings formed thereon, it is convenient for users to use bolts to install the flange as a whole, meeting the user's need for overall installation and limitation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0024] Figure 1 is the overall structural schematic diagram of the present utility model;

[0025] Figure 2 is the top view of the structure of the present utility model;

[0026] Figure 3 is the rear view of the structure of the present utility model;

[0027] Figure 4 is the structure of the present utility model Figure 1 enlarged view of the structure at A in;

[0028] Figure 5 is the side sectional view of the structure of the present utility model.

[0029] In the figure: 1, flange general component; 2, pipeline insertion and clamping plate; 3, first installation opening; 4, first flange; 5, second flange; 6, second installation opening; 7, sealing ring; 8, first clamping opening; 9, fixing block; 10, nut; 11, threaded rod; 12, second clamping opening; 13, insertion opening. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The technical solution of the present utility model will be further described in detail in conjunction with the preferred embodiments and their accompanying drawings in a non-limiting manner. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0031] Please refer to Figures 1 - 5 , the present utility model provides a technical solution: a hard-sealed high-pressure self-tightening flange for pipelines, including a flange general component 1. A second flange 5 is fixedly connected to the side surface of the flange general component 1. A second installation opening 6 is penetrated and opened on the front surface of the second flange 5. A pipeline insertion and clamping plate 2 is fixedly connected to the outer ring surface of the flange general component 1.

[0032] In this embodiment, a second installation opening 6 is penetrated and opened on the front surface of the second flange 5, and the second installation opening 6 is circumferentially opened with the second flange 5 as the center point. The second installation opening 6 circumferentially opened with the second flange 5 as the center point can facilitate the user to limit the overall use and installation of the second flange 5 with bolts. A second clamping opening 12 is opened in the inner ring of the pipeline insertion and clamping plate 2, and the size of the second clamping opening 12 matches that between the second clamping opening 12 and the flange general component 1. The second clamping opening 12 with a size matching that between the second clamping opening 12 and the flange general component 1 can facilitate the user to install the pipeline insertion and clamping plate 2 on the flange general component 1.

[0033] Embodiment 2

[0034] As Figures 1 - 5 shown, on the basis of Embodiment 1, the present utility model provides a technical solution: Preferably, a first flange 4 is fixedly connected to the outer ring surface of the pipeline insertion and clamping plate 2. A first installation opening 3 is penetrated and opened on the front surface of the first flange 4.

[0035] In this embodiment, a first clamping opening 8 is opened in the inner ring of the front surface of the second flange 5, and the structure of the first clamping opening 8 matches that between the first clamping opening 8 and the sealing ring 7. The first clamping opening 8 with a structure matching that between the first clamping opening 8 and the sealing ring 7 can facilitate the user to install the sealing ring 7 on the second flange 5. A threaded rod 11 is inserted and limited on the inner ring surface of the nut 10, and the threaded rod 11 is connected between the nut 10 and the fixed block 9. The threaded rod 11 connected between the nut 10 and the fixed block 9 can facilitate the user to connect the fixed block 9 and the threaded rod 11.

[0036] Embodiment 3

[0037] As Figures 1 - 5As shown, on the basis of Embodiment 1 and Embodiment 2, the present utility model provides a technical solution: Preferably, a fixing block 9 is fixedly connected to the outer surface of the pipe insertion and clamping plate 2, a nut 10 is fixedly connected to the side surface of the fixing block 9, a sealing ring 7 is clamped to the front surface of the second flange 5, and an insertion opening 13 is formed on the inner surface of the pipe insertion and clamping plate 2.

[0038] In this embodiment, the fixing block 9 connects the nut 10 and the pipe insertion and clamping plate 2, and the fixing blocks 9 are symmetrically arranged up and down with the horizontal dividing line of the nut 10 as the symmetry axis. The fixing blocks 9 symmetrically arranged up and down with the horizontal dividing line of the nut 10 can facilitate the user to stably install the nut 10 on the pipe insertion and clamping plate 2.

[0039] As Figures 1 - 5 shown, when the user needs to use it, when the user needs to perform use and limit installation on the pipe, the user needs to insert the pipe into the insertion opening 13 formed on the inner circle of the pipe insertion and clamping plate 2. Then the user needs to turn the threaded rod 11, and through the limitation of the nut 10 provided, the user can clamp the pipe. In this way, the user can clamp and install the pipe insertion and clamping plate 2 and the pipe, and in this way, the user can perform self-tightening installation on the flange and the pipe. In this way, the user can perform the use of self-tightening installation, and through the provided second flange 5 and the multiple second installation openings 6 formed thereon, as well as the first flange 4 and the multiple first installation openings 3 formed thereon, it is convenient for the user to use bolts to install the flange as a whole. In this way, the user can perform the use of overall use and limit installation.

[0040] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0041] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit it. Although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present utility model.

Claims

1. A hard-sealed high-pressure self-tightening flange for a pipeline, comprising a flange assembly (1), characterized in that: A second flange (5) is fixedly connected to the side surface of the flange assembly (1), and a second installation opening (6) is provided through the front surface of the second flange (5); The outer ring surface of the flange assembly (1) is fixedly connected to a pipe plug-in card plate (2), the outer ring surface of the pipe plug-in card plate (2) is fixedly connected to a first flange (4), and a first installation opening (3) is formed through the front surface of the first flange (4); A fixing block (9) is fixedly connected to the outer ring surface of the pipe plug-in card plate (2), a nut (10) is fixedly connected to the side surface of the fixing block (9), a sealing ring (7) is clamped on the front surface of the second flange (5), and a plug-in opening (13) is provided on the inner ring surface of the pipe plug-in card plate (2).

2. The hard-sealed high-pressure self-tightening flange for pipelines according to claim 1, characterized in that: A second installation opening (6) is provided through the front surface of the second flange (5), and the second installation opening (6) is opened around the second flange (5) as the center point.

3. The hard-sealed high-pressure self-tightening flange for pipelines according to claim 1, characterized in that: The inner circle of the pipe plug-in clamping plate (2) is provided with a second clamping opening (12), and the second clamping opening (12) and the flange assembly (1) are matched in size.

4. The hard-sealed high-pressure self-tightening flange for pipelines according to claim 1, characterized in that: A first clamping opening (8) is provided on the inner circle of the front surface of the second flange (5), and the first clamping opening (8) and the sealing ring (7) are structurally matched with each other.

5. The hard-sealed high-pressure self-tightening flange for pipelines according to claim 1, characterized in that: A threaded rod (11) is inserted into the inner ring surface of the nut (10) in a limited position, and the threaded rod (11) is connected between the nut (10) and the fixing block (9).

6. The hard-sealed high-pressure self-tightening flange for pipelines according to claim 1, characterized in that: The fixing block (9) connects the nut (10) and the pipe plug-in card plate (2), and the fixing block (9) is symmetrically arranged up and down with the horizontal dividing line of the nut (10) as the symmetry axis.

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