CN215522370U

CN215522370U - Stainless steel flange for pressure gas pipeline

Info

Publication number: CN215522370U
Application number: CN202121574953.0U
Authority: CN
Inventors: 夏建峰
Original assignee: Wuxi Yingbao Precision Machinery Co ltd
Current assignee: Wuxi Yingbao Precision Machinery Co ltd
Priority date: 2021-07-12
Filing date: 2021-07-12
Publication date: 2022-01-14
Anticipated expiration: 2031-07-12

Abstract

The utility model discloses a stainless steel flange for a pressure gas pipeline, which comprises a left flange, wherein a right flange is arranged on the right side of the left flange, the left flange comprises a left flange plate and a left central column, the right flange comprises a right flange plate and a right central column, the left flange plate is fixedly connected with the left central column, the right flange plate is fixedly connected with the right central column, pre-installation mechanisms are arranged in inner cavities of the left flange plate and the right flange plate, fixing mechanisms are arranged on the outer surface walls of the left flange plate and the right flange plate, and sealing grooves are formed in the inner side walls of the left flange plate and the right flange plate. This stainless steel flange for pressure gas pipeline has solved current stainless steel flange for pressure gas pipeline and has often need the manual work to install it after handheld to lead to the problem of stainless steel flange installation and follow-up difficulty of disassembling.

Description

Stainless steel flange for pressure gas pipeline

Technical Field

The utility model relates to the technical field of stainless steel flanges, in particular to a stainless steel flange for a pressure gas pipeline.

Background

Gas is one of four basic substance states, gas can be composed of single atoms, single substance molecules composed of one element, compound molecules composed of multiple elements and the like, gas mixtures can comprise multiple gas substances such as air, in order to convey gas, gas is usually compressed and transmitted through pipelines, two pipelines are usually connected through flanges, however, when the existing pressure gas pipelines are connected with each other in pairs through stainless steel flanges, the pipelines are often installed after being held by hands, the connection mode is time-consuming and labor-consuming, and the sealing performance between the two pipelines can be seriously influenced. The present application thus proposes a stainless steel flange for a pressure gas pipeline to solve such problems.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a stainless steel flange for a pressure gas pipeline, which solves the problem that the stainless steel flange for the pressure gas pipeline is difficult to install and disassemble due to the fact that the existing stainless steel flange for the pressure gas pipeline is often manually held.

(II) technical scheme

In order to achieve the purpose, the utility model is realized by the following technical scheme: the utility model provides a stainless steel flange for pressure gas pipeline, includes left flange, left side flange right side is provided with right flange, left side flange includes left ring flange and left center post, right side flange includes right ring flange and right center post, left side ring flange and left center post fixed connection, right side ring flange and right center post fixed connection, left side ring flange is provided with installation mechanism in advance with right ring flange inner chamber, left side ring flange is provided with fixed establishment with right ring flange outward appearance wall, left side ring flange is provided with the seal groove with right ring flange inside wall.

Preferably, pre-installation mechanism includes solid fixed ring, fixing base, well core plate, reset spring, trapezoidal plate, ring channel and dovetail groove, the solid fixed ring of right flange dish left end face fixedly connected with, gu fixed ring and fixing base fixed connection, the fixing base inner chamber is provided with well core plate, reset spring's both ends respectively with well core plate and trapezoidal plate fixed connection, trapezoidal plate and fixing base sliding connection, left side flange dish right-hand member face is provided with ring channel and dovetail groove, ring channel and dovetail groove intercommunication, gu fixed ring is connected with the ring channel block, trapezoidal plate and dovetail groove block are connected.

Preferably, the upper end face and the lower end face of each trapezoidal plate are inclined end faces, the number of the fixing seats is 4, and the number of the trapezoidal plates is 8.

Preferably, the fixing mechanism comprises a fixing screw, a fixing nut and a spring gasket, deep holes are formed in the outer side walls of the left flange plate and the right flange plate, the fixing screw is in penetrating connection with the left flange plate and the right flange plate through the deep holes, the fixing screw is in threaded connection with the fixing nut, and the spring gasket is arranged at two ends of the fixing screw.

Preferably, the number of the fixing screw rods and the number of the fixing nuts are 4, and the fixing screw rods and the fixing nuts are distributed around the left flange plate and the right flange plate.

Preferably, a sealing ring is arranged in the inner cavity of the sealing groove, and the sealing ring is made of composite ethylene propylene diene monomer.

(III) advantageous effects

The utility model provides a stainless steel flange for a pressure gas pipeline. The method has the following beneficial effects:

(1) this stainless steel flange for pressure gas pipeline, when installing left flange and right flange, through with solid fixed ring and ring channel laminating, the rethread removes solid fixed ring to the ring channel inner chamber, when solid fixed ring contacts with the ring channel, because the terminal surface sets up to the terminal surface of slope about the trapezoidal plate, reset spring's both ends respectively with well core plate and trapezoidal plate fixed connection, thereby the trapezoidal plate can receive into the fixing base inner chamber, the fixing base continues to remove to the ring channel inner chamber, when the fixing base removes to trapezoidal groove department, reset spring obtains resetting, the trapezoidal plate can block and advance the trapezoidal inslot, thereby whole device has realized the function of installing left flange and right flange in advance, and then the efficiency of installation has been improved.

(2) This stainless steel flange for pressure gas pipeline, after installing left flange and right flange in advance, through pegging graft clamping screw at left flange dish and right flange dish inner chamber, through clamping screw and fixation nut threaded connection, thereby can make clamping screw and fixation nut keep fixed through clamping screw and fixation nut's cooperation, thereby whole device has realized can make things convenient for quick the function of installing left flange and right flange, through being provided with spring shim, clamping screw and fixation nut to the damage of flange have been avoided, also made things convenient for workman's disassembling after the engineering finishes, be provided with the sealing washer through the seal groove inner chamber, the sealing between pipeline and flange has been guaranteed, pressure gas's the disclosure has been avoided.

Drawings

FIG. 1 is a front view of the overall structure of the present invention;

FIG. 2 is a schematic diagram of a right-view split structure of the present invention;

FIG. 3 is a schematic left-view split structure of the present invention;

FIG. 4 is a schematic cross-sectional view of the fixing base of the present invention;

FIG. 5 is a schematic sectional view of the stepped groove of the present invention.

In the figure: 1. a left flange; 11. a left flange plate; 12. a left central column; 21. a right flange plate; 22. a right central post; 3. pre-installation of a mechanism; 31. a fixing ring; 32. a fixed seat; 33. a center plate; 34. a return spring; 35. a trapezoidal plate; 36. an annular groove; 37. a trapezoidal groove; 4. a fixing mechanism; 41. fixing the screw rod; 42. fixing a nut; 43. a spring washer; 51. a sealing groove; 52. and (5) sealing rings.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution:

the first embodiment is as follows:

a stainless steel flange for a pressure gas pipeline comprises a left flange 1, a right flange 2 is arranged on the right side of the left flange 1, the left flange 1 comprises a left flange 11 and a left center post 12, the right flange 2 comprises a right flange 21 and a right center post 22, the left flange 11 is fixedly connected with the left center post 12, the right flange 21 is fixedly connected with the right center post 22, a pre-mounting mechanism 3 is arranged in the inner cavities of the left flange 11 and the right flange 21, a fixing mechanism 4 is arranged on the outer surface walls of the left flange 11 and the right flange 21, a sealing groove 51 is arranged on the inner side walls of the left flange 11 and the right flange 21, the pre-mounting mechanism 3 comprises a fixing ring 31, a fixing seat 32, a central plate 33, a reset spring 34, a trapezoidal plate 35, an annular groove 36 and a trapezoidal groove 37, the left end face of the right flange 21 is fixedly connected with the fixing ring 31, the fixing ring 31 is fixedly connected with the fixing seat 32, the central plate 33 is arranged in the inner cavity of the fixing seat 32, two ends of a return spring 34 are respectively fixedly connected with a central plate 33 and a trapezoidal plate 35, the trapezoidal plate 35 is slidably connected with a fixed seat 32, the right end face of a left flange 11 is provided with an annular groove 36 and a trapezoidal groove 37, the annular groove 36 is communicated with the trapezoidal groove 37, a fixed ring 31 is connected with the annular groove 36 in a clamping manner, the trapezoidal plate 35 is connected with the trapezoidal groove 37 in a clamping manner, the upper end face and the lower end face of the trapezoidal plate 35 are arranged to be inclined end faces, 4 fixed seats 32 are arranged, 8 trapezoidal plates 35 are arranged, a fixing mechanism 4 comprises a fixing screw rod 41, a fixing nut 42 and a spring gasket 43, deep holes are respectively arranged on the outer side walls of the left flange 11 and the right flange 21, the fixing screw rod 41 is connected with the left flange 11 and the right flange 21 in a penetrating manner through the deep holes, the fixing screw rod 41 is in threaded connection with the fixing nut 42, the spring gaskets 43 are arranged at two ends of the fixing screw rod 41, 4 fixing screw rods 41 and the fixing nut 42 are respectively, and are distributed around the left flange plate 11 and the right flange plate 21, a sealing ring 52 is arranged in the inner cavity of the sealing groove 51, and the sealing ring 52 is made of composite ethylene propylene diene monomer. When the left flange 1 and the right flange 2 are installed, the fixing ring 31 is attached to the annular groove 36, and then the fixing ring 31 is moved towards the inner cavity of the annular groove 36, when the fixing ring 31 contacts the annular groove 36, because the upper end face and the lower end face of the trapezoidal plate 35 are set to be inclined end faces, two ends of the reset spring 34 are respectively fixedly connected with the central plate 33 and the trapezoidal plate 35, so that the trapezoidal plate 35 can be retracted into the inner cavity of the fixing seat 32, the fixing seat 32 continues to move towards the inner cavity of the annular groove 36, when the fixing seat 32 moves to the trapezoidal groove 37, the reset spring 34 is reset, the trapezoidal plate 35 can be clamped into the trapezoidal groove 37, so that the whole device realizes the function of pre-installing the left flange 1 and the right flange 2, the installing efficiency is improved, after the left flange 1 and the right flange 2 are pre-installed, the fixing screw rod 41 is inserted into the inner cavities of the left flange 11 and the right flange 21, through clamping screw 41 and fixation nut 42 threaded connection, thereby can make clamping screw 41 and fixation nut 42 keep fixed through clamping screw 41 and fixation nut 42's cooperation, thereby whole device has realized can make things convenient for quick the function of installing left flange 1 and right flange 2, through being provided with spring shim 43, clamping screw 41 and fixation nut 42 to the damage of flange have been avoided, also made things convenient for dismantling of engineering back workman, be provided with sealing washer 52 through seal groove 51 inner chamber, the sealing between pipeline and flange has been guaranteed, the leakage of pressure gas has been avoided.

When the left flange 1 and the right flange 2 are installed, the fixing ring 31 is attached to the annular groove 36, and then the fixing ring 31 is moved towards the inner cavity of the annular groove 36, when the fixing ring 31 contacts the annular groove 36, because the upper end face and the lower end face of the trapezoidal plate 35 are set to be inclined end faces, two ends of the reset spring 34 are respectively fixedly connected with the central plate 33 and the trapezoidal plate 35, so that the trapezoidal plate 35 can be retracted into the inner cavity of the fixing seat 32, the fixing seat 32 continues to move towards the inner cavity of the annular groove 36, when the fixing seat 32 moves to the trapezoidal groove 37, the reset spring 34 is reset, the trapezoidal plate 35 can be clamped into the trapezoidal groove 37, so that the whole device realizes the function of pre-installing the left flange 1 and the right flange 2, the installing efficiency is improved, after the left flange 1 and the right flange 2 are pre-installed, the fixing screw rod 41 is inserted into the inner cavities of the left flange 11 and the right flange 21, through clamping screw 41 and fixation nut 42 threaded connection, thereby can make clamping screw 41 and fixation nut 42 keep fixed through clamping screw 41 and fixation nut 42's cooperation, thereby whole device has realized can make things convenient for quick the function of installing left flange 1 and right flange 2, through being provided with spring shim 43, clamping screw 41 and fixation nut 42 to the damage of flange have been avoided, also made things convenient for dismantling of engineering back workman, be provided with sealing washer 52 through seal groove 51 inner chamber, the sealing between pipeline and flange has been guaranteed, the leakage of pressure gas has been avoided. The whole stainless steel flange for the pressure gas pipeline is provided with the pre-installation mechanism 3 and the fixing mechanism 4, so that the left flange 1 and the right flange 2 can be conveniently installed by workers, and the sealing performance between the pipeline and the flange is ensured by arranging the sealing ring 52.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.

Claims

1. The utility model provides a stainless steel flange for pressure gas pipeline, includes left flange (1), its characterized in that: left side flange (1) right side is provided with right flange (2), left side flange (1) is including left ring flange (11) and left center post (12), right side flange (2) are including right ring flange (21) and right center post (22), left side ring flange (11) and left center post (12) fixed connection, right side ring flange (21) and right center post (22) fixed connection, left side ring flange (11) and right ring flange (21) inner chamber are provided with installation mechanism (3) in advance, left side ring flange (11) and right ring flange (21) outward appearance wall are provided with fixed establishment (4), left side ring flange (11) and right ring flange (21) inside wall are provided with seal groove (51).

2. A stainless steel flange for a pressure gas pipeline according to claim 1, wherein: the pre-installation mechanism (3) comprises a fixed ring (31), a fixed seat (32), a central plate (33), a return spring (34), a trapezoidal plate (35), an annular groove (36) and a trapezoidal groove (37), the left end face of the right flange plate (21) is fixedly connected with a fixing ring (31), the fixing ring (31) is fixedly connected with a fixing seat (32), a central plate (33) is arranged in the inner cavity of the fixed seat (32), two ends of the reset spring (34) are respectively and fixedly connected with the central plate (33) and the trapezoidal plate (35), the trapezoidal plate (35) is connected with the fixed seat (32) in a sliding way, the right end face of the left flange plate (11) is provided with an annular groove (36) and a trapezoidal groove (37), annular groove (36) and dovetail groove (37) intercommunication, solid fixed ring (31) are connected with annular groove (36) block, dovetail plate (35) are connected with dovetail groove (37) block.

3. A stainless steel flange for a pressure gas pipeline according to claim 2, wherein: the terminal surface sets up to the terminal surface of slope about trapezoidal plate (35), fixing base (32) are provided with 4 altogether, trapezoidal plate (35) are provided with 8 altogether.

4. A stainless steel flange for a pressure gas pipeline according to claim 1, wherein: the fixing mechanism (4) comprises a fixing screw rod (41), a fixing nut (42) and a spring gasket (43), deep holes are formed in the outer side walls of the left flange plate (11) and the right flange plate (21), the fixing screw rod (41) is in through connection with the left flange plate (11) and the right flange plate (21) through the deep holes, the fixing screw rod (41) is in threaded connection with the fixing nut (42), and the spring gasket (43) is arranged at the two ends of the fixing screw rod (41).

5. A stainless steel flange for a pressure gas pipeline according to claim 4, wherein: the number of the fixing screw rods (41) and the number of the fixing nuts (42) are 4, and the fixing screw rods and the fixing nuts are distributed around the left flange plate (11) and the right flange plate (21).

6. A stainless steel flange for a pressure gas pipeline according to claim 1, wherein: the inner cavity of the sealing groove (51) is provided with a sealing ring (52), and the sealing ring (52) is made of composite ethylene propylene diene monomer.