CN215258389U

CN215258389U - Air leakage prevention quick-connection flange for low-pressure pipeline

Info

Publication number: CN215258389U
Application number: CN202121467449.0U
Authority: CN
Inventors: 邹雨; 林先钧; 邢艳艳
Original assignee: Wuxi Sidino Machinery Co ltd
Current assignee: Wuxi Sidino Machinery Co ltd
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2021-12-21
Anticipated expiration: 2031-06-30

Abstract

The utility model discloses a leak protection gas fast flange for low pressure pipeline, including first flange and second flange, first flange and second flange surface want one side of keeping away from first connecting pipe of fixedly connected with and second connecting pipe respectively, the surface cover of first connecting pipe is equipped with the support ring. The utility model discloses in, through passing first through-hole and second through-hole with the connecting plate, then the rethread screw thread is connected go-between and a plurality of connecting plates simultaneously, continue to rotate the go-between and can drive the connecting plate and remove, thereby fix first flange and second flange, do not need to fix through a plurality of bolts, and can rotate the go-between through the turning block, need not be with the help of other instruments, the connection speed of greatly accelerated, thereby greatly increased work efficiency, and can increase the leakproofness through the annular sealing pad that sets up, thereby avoid appearing the condition of gas leakage.

Description

Air leakage prevention quick-connection flange for low-pressure pipeline

Technical Field

The utility model relates to a pipe connection equipment technical field especially relates to a leak protection gas connects flange soon for low pressure pipeline.

Background

The flange is the part of interconnect between the pipeline, connects in the pipe end, and the flange also has to be used for on equipment import and export, connects two equipment, therefore, the flange has irreplaceable effect as the connecting piece. The pipeline is an essential conveying device for gas or water flow in production or life. Because the length of the pipeline is limited, two sections of pipelines are often required to be connected into a whole so as to meet the requirements of production and life. Flanges are generally used as connecting pieces to connect pipelines;

the flange for the low-pressure liquid pipeline is connected without fastening with high strength, and the flange is supported by aligning the flange in an assembly site by adopting a bolt fastening connection mode, then fastening bolts for fixed connection, and is complex to assemble.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a leak-proof quick-connecting flange for a low-pressure pipeline.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a leak protection gas fast flange for low pressure pipeline, includes first flange and second flange, first flange and second flange surface want the one side of keeping away from first connecting pipe of fixedly connected with and second connecting pipe respectively, the surface cover of first connecting pipe is equipped with the support ring, the surface of support ring and the circumferencial direction array fixedly connected with a plurality of connecting plates of one side that is close to first connecting flange, the surface cover of second connecting pipe is equipped with the go-between, first through-hole and the second through-hole corresponding with the connecting plate have been seted up respectively to first flange and second flange, the one end of connecting plate runs through first through-hole and second through-hole in proper order and passes through the screw rotation with the inner wall of go-between, the outer surface symmetry fixedly connected with rotor block of go-between.

Furthermore, the cross section of the connecting plate is arc-shaped, and the outer surface of the connecting plate is provided with external threads.

Furthermore, mounting grooves are formed in one side, close to the outer surface of the first connecting flange and the outer surface of the second connecting flange, and an annular sealing gasket is arranged between the mounting grooves.

Further, the outer surface of the connecting plate is in contact sliding connection with the inner walls of the first through hole and the second through hole.

Furthermore, the outer surface of the rotating block is provided with anti-skid grains.

Further, the length of the first connecting pipe is greater than the width of the support ring, and the length of the second connecting pipe is greater than the length of the connecting ring.

The utility model has the advantages that:

the utility model discloses when using, this a leak protection gas that is used for low pressure pipeline connects flange soon, through passing first through-hole and second through-hole with the connecting plate, then the rethread screw thread is connected go-between and a plurality of connecting plates simultaneously, it can drive the connecting plate and remove to continue to rotate the go-between, thereby fix first flange and second flange, need not fix through a plurality of bolts, and can rotate the go-between through the turning block, need not be with the help of other instruments, the connection speed of greatly accelerated, thereby greatly increased work efficiency, and the sealed leakproofness that can increase between first flange and the second flange of annular through the setting up, thereby avoid appearing the condition of gas leakage.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a perspective view of the support ring and the connecting plate of the present invention;

fig. 3 is a perspective view of the connection ring of the present invention;

fig. 4 is a side view of a first attachment flange of the present invention.

Illustration of the drawings:

1. a first connecting flange; 2. a second connecting flange; 3. a first connecting pipe; 4. a second connecting pipe; 5. a support ring; 6. a connecting plate; 7. a connecting ring; 8. a first through hole; 9. a second through hole; 10. rotating the block; 11. mounting grooves; 12. an annular seal.

Detailed Description

Fig. 1 to 4 show, relate to a leak protection gas fast flange that connects for low pressure pipeline, including first flange 1 and second flange 2, the one side that first flange 1 and second flange 2 surface want to keep away from is fixedly connected with first connecting pipe 3 and second connecting pipe 4 respectively, the surface cover of first connecting pipe 3 is equipped with support ring 5, the surface of support ring 5 and the circumferencial direction array fixedly connected with a plurality of connecting plates 6 that are close to one side of first flange 1, the surface cover of second connecting pipe 4 is equipped with go-between 7, first through-hole 8 and the second through-hole 9 corresponding with connecting plate 6 have been seted up respectively to first flange 1 and second flange 2, the one end of connecting plate 6 runs through first through-hole 8 and second through-hole 9 in proper order and passes through the screw rotation with the inner wall of go-between 7, the outer surface symmetry fixedly connected with of go-between 7 rotates piece 10.

When the anti-leakage quick-connection flange for the low-pressure pipeline is used, firstly, the end parts of two external pipelines are respectively connected with the first connecting pipe 3 and the second connecting pipe 4, the annular sealing gasket 12 is placed between the two mounting grooves 11, then the support ring 5 is pushed, the connecting plate 6 sequentially penetrates through the corresponding first through hole 8 and the second through hole 9, then the connecting ring 7 is rotated to the connecting plate 6 through threads, then the connecting ring 7 is continuously rotated through the rotating block 10, the connecting plate 6 is driven to move under the action of the threads, the first connecting flange 1 and the second connecting flange 2 are fixed, the connecting ring 7 does not need to be fixed through a plurality of bolts, the connecting ring 7 can be rotated through the rotating block 10, other tools do not need to be used, the connection speed is greatly accelerated, the working efficiency is greatly increased, and certain practicability is achieved.

In a further scheme, the cross section of the connecting plate 6 is arc-shaped, and the outer surface of the connecting plate 6 is provided with external threads, wherein the arc-shaped part is convenient to match with the inner wall of the connecting ring 7, and the external threads are convenient to connect.

In the further scheme, mounting groove 11, two relative have all been seted up to the one side that

first flange

1 and 2 surfaces of second flange are close to mutually be equipped with annular packing pad 12 between the mounting groove 11, through the placing of the annular packing pad 12 of being convenient for of mounting groove 11, can increase the leakproofness between first flange 1 and the second flange 2 through annular packing pad 12.

In a further scheme, the outer surface of the connecting plate 6 is in contact sliding connection with the inner walls of the first through hole 8 and the second through hole 9, and the contact sliding connection is used for avoiding the situation that the first connecting flange 1 and the second connecting flange 2 rotate to cause dislocation when being connected.

In a further scheme, the outer surface of the rotating block 10 is provided with anti-slip lines, and the anti-slip lines are used for increasing the friction force on the surface of the rotating block 10 so as to facilitate rotation.

In a further embodiment, the length of the first connecting pipe 3 is greater than the width of the support ring 5, and the length of the second connecting pipe 4 is greater than the length of the connecting ring 7, so as to facilitate the connection of external pipes to the first connecting pipe 3 and the second connecting pipe 4.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides a leak protection gas fast flange that connects for low pressure pipeline, includes first flange (1) and second flange (2), its characterized in that: one sides of the outer surfaces of the first connecting flange (1) and the second connecting flange (2) which are far away from each other are fixedly connected with a first connecting pipe (3) and a second connecting pipe (4) respectively, the outer surface of the first connecting pipe (3) is sleeved with a supporting ring (5), a plurality of connecting plates (6) are fixedly connected to the outer surface of the supporting ring (5) in an array manner in the circumferential direction at one side close to the first connecting flange (1), a connecting ring (7) is sleeved on the outer surface of the second connecting pipe (4), a first through hole (8) and a second through hole (9) which correspond to the connecting plate (6) are respectively formed in the first connecting flange (1) and the second connecting flange (2), one end of the connecting plate (6) penetrates through the first through hole (8) and the second through hole (9) in sequence and rotates with the inner wall of the connecting ring (7) through threads, the outer surface of the connecting ring (7) is symmetrically and fixedly connected with rotating blocks (10).

2. An air leakage prevention quick-connection flange for a low-pressure pipeline according to claim 1, characterized in that: the cross section of the connecting plate (6) is arc-shaped, and external threads are arranged on the outer surface of the connecting plate (6).

3. An air leakage prevention quick-connection flange for a low-pressure pipeline according to claim 1, characterized in that: mounting groove (11), two are relative have all been seted up to one side that first flange (1) and second flange (2) surface are close to mutually be equipped with annular packing pad (12) between mounting groove (11).

4. An air leakage prevention quick-connection flange for a low-pressure pipeline according to claim 1, characterized in that: the outer surface of the connecting plate (6) is in contact sliding connection with the inner walls of the first through hole (8) and the second through hole (9).

5. An air leakage prevention quick-connection flange for a low-pressure pipeline according to claim 1, characterized in that: the outer surface of the rotating block (10) is provided with anti-skid grains.

6. An air leakage prevention quick-connection flange for a low-pressure pipeline according to claim 1, characterized in that: the length of the first connecting pipe (3) is larger than the width of the support ring (5), and the length of the second connecting pipe (4) is larger than the length of the connecting ring (7).