Quickly-assembled and directly-connected single flange and flange connecting structure

Abstract

The utility model relates to a fast-assembly direct-connection single-piece flange and a flange connecting structure, the single-piece flange comprises a flange body and at least one sealing ring, the flange body is provided with a through hole used for being arranged on a pipeline in a sleeving mode and a hole used for installing a bolt, and the edge of the flange body is further provided with at least two fixing clamping blocks; a clamping opening used for limiting the second flange is formed in the fixing clamping block, a groove is formed in the end face of the flange body, and the sealing ring is arranged in the groove in a limiting mode. Installation is faster, the time for installing flange gaskets is saved, and the time for installing bolts and nuts is shortened.

Description

Technical Field

[0001] The present application belongs to the technical field of pipeline connection, and relates to a quick-install direct-connect single-piece flange and a flange connection structure. Background Art

[0002] Flanges are parts used to connect pipes to each other. Bolt holes are usually set on the flanges. Bolts connect the two flanges tightly. Gaskets (flange gaskets) are usually used to seal between the flanges. After the two flanges are aligned, a layer of rubber gasket is sandwiched in the middle. Then, different numbers of bolts are installed according to the number of bolt holes. The assembly is relatively cumbersome. Utility Model Content

[0003] In order to overcome the problems existing in the related art, the purpose of the present application is to provide a quick-install direct-connect single-piece flange, which is faster to install, saves the time for installing flange gaskets, and reduces the time for installing bolts and nuts.

[0004] The present application is implemented through the following technical solutions.

[0005] The technical solution is to provide a single-piece flange for quick installation and direct connection, including a flange body and at least one sealing ring, the flange body is provided with a through hole for being mounted on a pipe and holes for installing bolts, the edge of the flange body is also provided with at least two fixed blocks, a bayonet for limiting a second flange is formed on the fixed block, a groove is provided on the end face of the flange body, and the sealing ring is limited in the groove.

[0006] The single-piece flange of the present technical solution first limits the second flange on the single-piece flange through a fixing block to achieve rapid fixation and positioning, and then screws suitable bolts into the holes for reinforcement, thereby achieving quick-insert installation, reducing the number of bolts used, and speeding up installation.

[0007] In one embodiment of the technical solution, a raised first sealing surface is formed on the end surface of the flange body, the first sealing surface is arranged in a ring shape around the through hole, and the groove is arranged on the first sealing surface.

[0008] In one embodiment of the technical solution, a guide bevel is provided on the edge of the first sealing surface, and the guide bevel smoothly transitions the end surface to the first sealing surface.

[0009] In one embodiment of the technical solution, the sealing ring is an O-ring.

[0010] In one embodiment of the technical solution, the number of the fixed blocks is two, and the two fixed blocks are symmetrically arranged around the central axis of the flange.

[0011] Another technical solution of the present application is to provide a quick-connect flange connection structure, including a single-piece flange and a second flange as described above, wherein the single-piece flange is used to connect a first pipeline, and the second flange is used to connect a second pipeline; the second flange is arranged in the bayonet of the fixed block, and the single-piece flange and the second flange are fixedly connected by bolts, and the sealing ring is used to seal between the single-piece flange and the second flange.

[0012] The second flange is a standard flange. Thus, the single-piece flange of the present application can be quickly assembled with the standard flange.

[0013] In one embodiment of the technical solution, a raised second sealing surface is formed on the end surface of the second flange, and a guide bevel is provided on the edge of the second sealing surface, and the guide bevel smoothly transitions the end surface to the second sealing surface.

[0014] In this way, during quick assembly, the edge of the second sealing surface is provided with a guiding slope to avoid shearing of the sealing ring on the single-piece flange.

[0015] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0017] Figure 1 It is a structural schematic diagram of a flange connection structure shown in an embodiment of the present application.

[0018] Figure 2 It is a schematic cross-sectional structure diagram of a flange connection structure shown in an embodiment of the present application.

[0019] Figure 3 It is a schematic diagram of the structure of a single-piece flange shown in an embodiment of the present application.

[0020] Description of reference numerals:

[0021] 10-single-piece flange; 11-flange body; 111-through hole; 112-eyelet; 113-fixed block; 114-bayonet; 115-first sealing surface; 116-groove; 12-sealing ring; 20-second flange; 21-second sealing surface; 31-first pipe; 32-second pipe. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in some embodiments of the present application to clearly and completely describe the technical solutions in some embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0023] The technical solution of the embodiments of the present application is described in detail below with reference to the accompanying drawings.

[0024] like Figures 1 to 3 As shown in , this embodiment is a quick-install direct-connect flange connection structure, including a single-piece flange 10 and a second flange 20 , wherein the single-piece flange 10 is used to connect the first pipeline 31 , and the second flange 20 is used to connect the second pipeline 32 .

[0025] In this embodiment, the single-piece flange 10 includes a flange body 11 and two sealing rings 12. The flange body 11 is provided with a through hole 111 for being mounted on a pipe and a hole 112 for installing bolts. The edge of the flange body 11 is also provided with two fixed blocks 113. A bayonet 114 for limiting the second flange 20 is formed on the fixed block 113. A groove 116 is provided on the end face of the flange body 11, and the sealing ring 12 is limited in the groove 116.

[0026] Such a single-piece flange 10 first limits the second flange 20 on the single-piece flange 10 through the fixing block 113 to achieve rapid fixation and positioning, and then screws suitable bolts into the holes 112 for reinforcement, thereby achieving quick-insert installation, reducing the number of bolts used, and speeding up installation.

[0027] In this embodiment, the end surface of the flange body 11 is formed with a raised first sealing surface 115, which is arranged in an annular shape around the through hole 111, and the groove 116 is arranged on the first sealing surface 115. The edge of the first sealing surface 115 is provided with a guide bevel, which smoothly transitions the end surface to the first sealing surface 115.

[0028] In this embodiment, the sealing ring 12 is an O-ring, and the number of the sealing ring 12 and the number of the grooves 116 are both two.

[0029] In this embodiment, there are two fixing blocks 113 on the flange body 11 , and the two fixing blocks 113 are symmetrically arranged around the central axis of the flange.

[0030] In this embodiment, the second flange 20 is arranged in the bayonet 114 of the fixed block, the single-piece flange 10 and the second flange 20 are fixedly connected by bolts, and the sealing ring is used to seal between the single-piece flange 10 and the second flange 20. The second flange 20 is a standard flange, so the single-piece flange 10 of the present application realizes the quick assembly of the single-piece flange 10 and the standard flange.

[0031] In this embodiment, preferably, a raised second sealing surface 21 is formed on the end surface of the second flange 20, and a guide bevel is provided on the edge of the second sealing surface 21, which smoothly transitions the end surface to the second sealing surface 21. In this way, when fast-installing, the guide bevel is provided on the edge of the second sealing surface 21 to avoid shearing of the sealing ring 12 on the single-piece flange 10.

[0032] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A single-piece flange for quick installation and direct connection, characterized in that: It includes a flange body and at least one sealing ring. The flange body is provided with a through hole for being mounted on a pipe and holes for installing bolts. The edge of the flange body is also provided with at least two fixing blocks, and a bayonet for limiting a second flange is formed on the fixing block. A groove is provided on the end face of the flange body, and the sealing ring is limited in the groove.

2. The quick-install direct-connect single-piece flange according to claim 1, characterized in that: The end surface of the flange body is formed with a raised first sealing surface, the first sealing surface is arranged in a ring shape around the through hole, and the groove is arranged on the first sealing surface.

3. The quick-install direct-connect single-piece flange according to claim 2, characterized in that: A guiding bevel is provided at the edge of the first sealing surface, and the guiding bevel smoothly transitions the end surface to the first sealing surface.

4. The quick-install direct-connect single-piece flange according to claim 1, characterized in that: The sealing ring is an O-ring.

5. The quick-install direct-connect single-piece flange according to claim 1, characterized in that: The number of the fixed blocks is two, and the two fixed blocks are symmetrically arranged around the central axis of the flange.

6. A quick direct connection flange connection structure, characterized in that: comprising a single-piece flange and a second flange as claimed in any one of claims 1 to 5, wherein the single-piece flange is used to connect a first pipeline, and the second flange is used to connect a second pipeline; The second flange is arranged in the bayonet of the fixed block, the single-piece flange and the second flange are fixedly connected by bolts, and the sealing ring is used to seal between the single-piece flange and the second flange.

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