CN211821192U

CN211821192U - Flange

Info

Publication number: CN211821192U
Application number: CN202020135562.8U
Authority: CN
Inventors: 张松
Original assignee: Songhai Flange Manufacturing Co Ltd
Current assignee: Songhai Flange Manufacturing Co Ltd
Priority date: 2020-01-20
Filing date: 2020-01-20
Publication date: 2020-10-30
Anticipated expiration: 2030-01-20

Abstract

The utility model relates to a technical field of pipe connection spare discloses a flange, and it includes the flange body of disc, be equipped with the perforating hole that is located its middle part on the flange body and use the perforating hole to be a plurality of mounting holes that circumference distributes as the centre of a circle, one side integrated into one piece of flange body has the tighrening ring, the axis of tighrening ring and the axis collineation of perforating hole, be equipped with the internal thread on the circumference outer wall of tighrening ring on external screw thread, the inner wall, the tighrening ring is close to the one end of flange body and is fixed with the spacing ring, the terminal surface that the flange body was kept away from to the spacing ring is equipped with annular spacing groove, be fixed with the. The utility model discloses have that the leakproofness is good, the effect that liquid can not leak in the pipeline.

Description

Flange

Technical Field

The utility model belongs to the technical field of the technique of pipe connection spare and specifically relates to a flange is related to.

Background

Flanges, also known as flange flanges or flanges, are parts of the interconnection between pipes for the connection between the pipe ends.

In the prior art, chinese patent No. CN2846955Y discloses a flange, which includes a flange ring formed by bending a strip-shaped steel plate, wherein both ends of the bent strip-shaped steel plate are formed by welding, and the flange ring is provided with holes.

The above prior art solutions have the following drawbacks: when the flange is used, one end of the flange needs to be welded with a pipeline, but the flange is usually made of a metal material, and the welding operation is prone to causing material embrittlement and generating structural defects if the welding operation is not operated properly, so that liquid leakage in the pipeline is caused, and improvement is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a flange, its effect that has that the leakproofness is good, liquid can not leak in the pipeline.

The above object of the present invention can be achieved by the following technical solutions: the utility model provides a flange, includes the flange body of disc, be equipped with on the flange body and be located the perforating hole in its middle part and use the perforating hole to be a plurality of mounting holes that circumference distributes as the centre of a circle, one side integrated into one piece of flange body has the tighrening ring, the axis of tighrening ring and the axis collineation of perforating hole, be equipped with the internal thread on the circumference outer wall of tighrening ring on external screw thread, the inner wall, one side that the flange body is close to the tighrening ring is fixed with the spacing ring that is located the tighrening ring outside, be formed with annular spacing groove between spacing ring and the tighrening ring, be fixed with the rubber circle on.

Through adopting above-mentioned technical scheme, when using flange joint pipeline, establish the screwed pipeline with the pipe end inner wall and the external screw thread fit of tighrening ring for in the tip screw in spacing groove of pipeline, rubber ring pressurized deformation plays sealed effect this moment, makes the liquid in the pipeline be difficult for leaking from the clearance of pipeline and flange, and is sealed effectual. Compared with a welding mode, the threaded connection of the pipeline and the flange is more convenient to operate, the assembly efficiency of the flange is improved, and the structural defect caused by embrittlement of the flange due to high temperature can be avoided. Besides, people can also be provided with the threaded pipeline of the outer wall of the pipe end and the internal thread fit of the fastening ring, so that the pipeline with the smaller diameter is assembled, the flange is not only suitable for assembling the pipeline with one diameter, and the practicability is stronger.

The utility model discloses further set up to: one side of the rubber ring close to the fastening ring is integrally formed with a plurality of stop rings distributed along the length direction of the rubber ring.

Through adopting above-mentioned technical scheme, the stop ring has increased the frictional force of rubber circle and pipeline for the pipeline assembly is difficult for moving relative flange body after target in place, has further improved the joint strength of pipeline and flange.

The utility model discloses further set up to: the end face of the stop ring close to the fastening ring is a convex cambered surface.

Through adopting above-mentioned technical scheme, protruding cambered surface plays the effect of direction when the pipeline stretches into or shifts out the spacing groove, is favorable to being connected of pipeline and flange.

The utility model discloses further set up to: the flange is characterized in that an annular reinforcing block is integrally formed on the circumferential side wall of the limiting ring, one end of the reinforcing block is connected with the limiting ring, and the other end of the reinforcing block is fixed on the flange body.

By adopting the technical scheme, the reinforcing block improves the structural strength of the limiting ring and increases the maximum stress born by the limiting ring.

The utility model discloses further set up to: the terminal surface that the spacing ring was kept away from to the boss is the concave cambered surface, the concave cambered surface just faces the one side of keeping away from the flange body with the outer wall intercommunication of spacing ring.

By adopting the technical scheme, the concave cambered surface not only plays a role in saving production materials of the reinforcing block, but also saves resources; the smoothness of the surface of the reinforcing block is also increased.

The utility model discloses further set up to: and a sealing ring is fixed on the inner wall of the mounting hole and is an elastic ring.

Through adopting above-mentioned technical scheme, when connecting two pipelines that are equipped with the flange, need pass the mounting hole on two flanges simultaneously with the bolt and with nut screw-thread fit, the sealing washer can receive the pressure when the bolt stretches into and produce deformation, plays further sealed effect, avoids liquid to flow outward from the clearance of bolt and mounting hole.

The utility model discloses further set up to: and a plurality of groups of oil injection holes which are respectively communicated with the mounting holes are arranged on the flange body.

Through adopting above-mentioned technical scheme, when the bolt in the mounting hole rusted, people's accessible oil filler point pours into lubricating oil into to the mounting hole, avoided the bolt card to die and influence the split of two flanges.

The utility model discloses further set up to: and an opening end of the oil injection hole is fixedly provided with an elastic check ring, the middle part of the check ring is provided with an insertion hole, and an opening of the insertion hole is closed when the check ring is in a natural state.

Through adopting above-mentioned technical scheme, during the oiling, the syringe needle that will be used for the oiling stretches into the jack for the retaining ring produces deformation. The syringe needle is extracted to the back after the oiling, and the retaining ring can resume natural state under self elastic action, and can seal the opening of jack during the retaining ring natural state, avoids the dust to get into the oil filler point and blocks up it, can not influence the use of oil filler point.

The utility model discloses further set up to: the quantity of every group oil filler point is four and is the circumference equipartition with the axis of mounting hole.

By adopting the technical scheme, the number of the oil injection holes is set to be multiple groups, on one hand, people can simultaneously inject oil into the mounting holes through the oil injection holes, and the oil injection efficiency is high; on the other hand, due to the fact that the flange is assembled in different environments, the oil injection holes are formed in the circumferential direction, and the oil injection device has the effect that people can conveniently inject oil into the mounting holes at the large operating space.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the flange and the pipeline are connected through the external thread on the fastening ring instead of being welded, so that the operation is simple and convenient, and the assembly efficiency is high; when the pipeline is connected in place, the pipeline is positioned in the limiting groove and extrudes the rubber ring, and the rubber ring deforms and plays a role in sealing, so that liquid in the pipeline is prevented from leaking, and the sealing performance is good;

2. the stop ring increases the friction force between the pipeline and the flange, so that the flange is not easy to move relative to the pipeline, the connection strength between the flange and the pipeline is improved, and the convex cambered surface has the effect of facilitating the pipeline to move in or out of the limiting groove;

3. when the bolts in the mounting holes rust, people can penetrate the needle heads into the insertion holes to inject lubricating oil into the oil injection holes, the lubricating oil can flow to the mounting holes along the oil injection holes and plays a lubricating role, and people can conveniently detach the bolts to realize the detachment of the two flanges; the opening of the oil filling hole can be closed by the retainer ring in a natural state, so that dust is prevented from entering the oil filling hole.

Drawings

FIG. 1 is a schematic structural view of the present embodiment;

fig. 2 is a partial sectional view schematically showing the present embodiment.

Reference numerals: 1. a flange body; 2. a through hole; 3. mounting holes; 4. a seal ring; 5. an oil filler hole; 6. a retainer ring; 7. a jack; 8. a fastening ring; 9. an external thread; 10. an internal thread; 11. a limiting ring; 12. a limiting groove; 13. a rubber ring; 14. a stopper ring; 15. a convex arc surface; 16. a reinforcing block; 17. a concave arc surface.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The embodiment discloses a flange, as shown in fig. 1 and 2, including a disc-shaped flange body 1, a through hole 2 and six mounting holes 3 are arranged on the flange body 1, the through hole 2 is located in the middle of the flange body 1, the circle center of the through hole 2 is the same as that of the flange body 1, the six mounting holes 3 are circumferentially and uniformly distributed with the circle center of the through hole 2, a sealing ring 4 is fixed on the inner wall of each mounting hole 3, and the sealing ring 4 is made of elastic rubber material. When connecting two flanges, align the edge of two flanges earlier, link to each other with the nut after passing the mounting hole 3 of two intercommunications with the bolt simultaneously again, sealing washer 4 can produce deformation and play sealed effect when the bolt stretches into, avoids liquid to flow outward from the clearance of bolt and mounting hole 3.

As shown in fig. 1 and 2, six groups of oil injection holes 5 respectively communicated with six mounting holes 3 are arranged on the flange body 1, and the number of the oil injection holes 5 in each group is four and is circumferentially and uniformly distributed around the circle center of the mounting hole 3 close to the number of the oil injection holes. A check ring 6 made of rubber materials is fixed on the inner wall of the oil injection hole 5, the check ring 6 is close to the opening end of the oil injection hole 5, one end face of the check ring is flush with the end face of the flange body 1, a jack 7 is arranged in the middle of the check ring 6, and the opening of the jack 7 is closed when the check ring 6 is in a natural state. When the bolt among the mounting hole 3 rusted, people can pass the syringe needle and stretch into in oil filler point 5 behind jack 7 to 5 injection oil in oil filler point, lubricating oil can follow in 5 flowing into mounting hole 3 of oil filler point and play lubricated effect, avoid the bolt card to die and influence the split of two flanges.

As shown in fig. 1 and 2, a fastening ring 8 is integrally formed on one side of the flange body 1, a central axis of the fastening ring 8 is collinear with a central axis of the through hole 2, an external thread 9 is arranged on a circumferential outer wall of the fastening ring 8, an internal thread 10 is arranged on a circumferential inner wall of the fastening ring 8, and the external thread 9 and the internal thread 10 both extend along the length direction of the fastening ring 8. When the pipeline is connected, people can connect the pipeline with the threads on the outer wall of the pipe end with the internal threads 10 or connect the pipeline with the threads on the inner wall of the pipe end with the external threads 9, so that the pipeline and the flange are assembled, compared with a welding mode, the operation is simple and convenient, and the flange cannot be affected by high temperature to be embrittled.

As shown in fig. 1 and 2, a limit ring 11 is fixed on the end surface of the flange body 1 close to the fastening ring 8, the limit ring 11 is located on the outer side of the fastening ring 8, a limit groove 12 is formed on the inner wall of the limit ring 11, the outer wall of the fastening ring 8 and the end surface of the flange body 1 close to the limit ring 11, a rubber ring 13 is fixed on the inner wall (i.e. the inner wall of the limit ring 11) of the limit groove 12 far away from the fastening ring 8, a plurality of annular stop rings 14 are integrally formed on one side of the rubber ring 13 close to the fastening ring 8, the plurality of stop rings 14 are distributed equidistantly along the length direction of the rubber ring 13, and the end surface of the stop ring 14 close to the fastening ring 8 is a. When the pipeline is connected with the external thread 9 of the fastening ring 8, the pipeline extends into the limiting groove 12 and extrudes the rubber ring 13 and the stop ring 14, so that the rubber ring 13 and the stop ring 14 deform, liquid in the pipeline cannot leak from the gap between the pipeline and the flange, and the sealing effect is good.

As shown in fig. 1 and 2, an annular reinforcing block 16 is integrally formed on a circumferential side wall of the retainer ring 11, and one end of the reinforcing block 16 close to the flange body 1 is fixed to the flange body 1. The end face, far away from the limiting ring 11, of the reinforcing block 16 is a concave arc face 17, the concave arc face 17 is communicated with the outer wall of the limiting ring 11 and the side face of the flange body 1, and the concave arc face 17 faces to one side far away from the flange body 1. The reinforcing block 16 improves the structural strength of the stop collar 11 and increases the maximum stress that the stop collar 11 can bear the extrusion of the pipeline.

The implementation principle of the embodiment is as follows: when connecting pipeline and flange, be equipped with the pipeline of screw thread on the pipe end inner wall and be connected with external screw thread 9 on the tighrening ring 8 for the tip of pipeline stretches into spacing groove 12 and extrudees rubber ring 13 and retaining ring 14, and rubber ring 13 pressurized deformation plays sealed effect this moment, avoids the liquid leakage in the pipeline. The pipeline and the flange are in threaded connection instead of welding, the operation is simple and convenient, the flange cannot be embrittled by high-temperature stimulation, and the flange cannot generate structural defects.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, any modification, equivalent replacement, or improvement made within the design concept of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides a flange, includes flange body (1) of disc, be equipped with on flange body (1) and be located its middle part perforating hole (2) and use perforating hole (2) as a plurality of mounting holes (3) that the centre of a circle is circumference and distributes, its characterized in that: one side integrated into one piece of flange body (1) has tighrening ring (8), the axis of tighrening ring (8) and the axis collineation of perforating hole (2), be equipped with on the circumference outer wall of tighrening ring (8) external screw thread (9), the inner wall on be equipped with internal thread (10), one side that flange body (1) is close to tighrening ring (8) is fixed with spacing ring (11) that are located the tighrening ring (8) outside, be formed with annular spacing groove (12) between spacing ring (11) and tighrening ring (8), spacing groove (12) are kept away from and are fixed with rubber ring (13) on the inner wall of tighrening ring (8).

2. A flange according to claim 1, wherein: one side of the rubber ring (13) close to the fastening ring (8) is integrally formed with a plurality of stop rings (14) distributed along the length direction of the rubber ring.

3. A flange according to claim 2, wherein: the end surface of the stop ring (14) close to the fastening ring (8) is a convex arc surface (15).

4. A flange according to claim 1, wherein: an annular reinforcing block (16) is integrally formed on the circumferential side wall of the limiting ring (11), one end of the reinforcing block (16) is connected with the limiting ring (11), and the other end of the reinforcing block is fixed on the flange body (1).

5. A flange according to claim 4, wherein: the end face, far away from the limiting ring (11), of the reinforcing block (16) is a concave arc face (17), and the concave arc face (17) is communicated with the outer wall of the limiting ring (11) and faces to one side, far away from the flange body (1).

6. A flange according to claim 1, wherein: and a sealing ring (4) is fixed on the inner wall of the mounting hole (3), and the sealing ring (4) is an elastic ring.

7. A flange according to claim 6, wherein: the flange body (1) is provided with a plurality of groups of oil injection holes (5) which are respectively communicated with the mounting holes (3).

8. A flange according to claim 7, wherein: the opening end of the oil filling hole (5) is fixedly provided with a check ring (6) with elasticity, the middle part of the check ring (6) is provided with a jack (7), and the opening of the jack (7) is closed when the check ring (6) is in a natural state.

9. A flange according to claim 8, wherein: the number of each group of oil injection holes (5) is four and is circumferentially and uniformly distributed by using the central axis of the mounting hole (3).