CN216896262U

CN216896262U - Novel flange joint for pipeline connection

Info

Publication number: CN216896262U
Application number: CN202220317420.2U
Authority: CN
Inventors: 于忠伟
Original assignee: Dalian Fangwei Machinery Manufacturing Co ltd
Current assignee: Dalian Fangwei Machinery Manufacturing Co ltd
Priority date: 2022-02-17
Filing date: 2022-02-17
Publication date: 2022-07-05
Anticipated expiration: 2032-02-17

Abstract

The utility model discloses a novel flange joint for pipeline connection, which relates to the technical field of flange joints and comprises a sleeve, wherein one end of the sleeve is fixedly connected with a first flange, a lower inclined opening is formed in the first flange, a sealing rubber ring is inserted in the lower inclined opening, an insertion groove is formed in the sealing rubber ring, a plurality of adjusting sheets are inserted in the insertion groove, a plurality of locking blocks are arranged on the sealing rubber ring and positioned at the inner sides of the adjusting sheets, a pressing flange is arranged on the first flange, an upper inclined opening is formed in the pressing flange, the upper ends of the adjusting sheets are all contacted with the upper inclined opening, the other end of the sleeve is communicated with a connecting pipe, one end of the connecting pipe is fixedly connected with a second flange, a buffer cylinder is fixedly connected on the outer wall surface of one side of the connecting pipe, the device pushes the locking blocks to hoop the inserted pipeline through the plurality of adjusting sheets, pushes a piston and compresses a spring through water pressure, water can be gushed into the buffer cylinder through pressure, and the pipeline is prevented from being pulled off from the device.

Description

Novel flange joint for pipeline connection

Technical Field

The utility model relates to the technical field of flange joints, in particular to a novel flange joint for pipeline connection.

Background

When the current water supply, drainage, oil transportation and other fluid pipelines are constructed and laid, the flanges of valves, filters and other devices need to be connected, when the pipelines without flange plates are butted, an independent flange is welded at a pipeline port in the traditional connection mode and is used for being connected with flanges of equipment such as valves and the like, the construction cost is high, and the efficiency is low, for example, in the utility model patent with the publication number of CN107830288B, the quick pipeline connecting flange is disclosed, and comprises a shell, a radial holding system, a sealing system and an axial pressing system, wherein the radial holding system is arranged in an inner concave wedge surface of the shell; a sealing system is arranged between the shell and the axial compression system; the shell and the axial compression system are tightly connected by a pull rod bolt. The working principle is as follows: the shell moves axially to enable the radial enclasping system to enclasp the sleeve; the tension bolt enables the shell to be tightly connected with the axial compression system, so that the flange end cover compresses the end face of the sleeve, the sealing ring is compressed, and oil gas is prevented from leaking from the flange end cover. However, the device does not have the water pressure buffering function, and when the water pressure is suddenly increased, the pipeline is easy to be pulled off, so that the using effect is not good.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a novel flange joint for pipeline connection, which solves the technical problem that the pipeline of the prior device is easy to pull off.

In order to achieve the purpose, the utility model is realized by the following technical scheme: a novel flange joint for pipeline connection comprises a sleeve, wherein one end of the sleeve is fixedly connected with a first flange plate, a lower bevel opening is arranged in the first flange plate, a sealing rubber ring is inserted in the lower bevel opening, an insertion groove is arranged in the sealing rubber ring, a plurality of adjusting sheets are inserted in the inserting groove, a plurality of locking blocks are arranged on the sealing rubber ring and positioned at the inner sides of the adjusting sheets, a pressing flange is arranged on the first flange plate, an upper inclined opening is arranged in the pressing flange, the upper ends of the plurality of adjusting sheets are all contacted with the upper inclined opening, the other end of the sleeve is communicated with a connecting pipe, one end of the connecting pipe is fixedly connected with a second flange, the outer wall surface of one side of the connecting pipe is fixedly connected with a buffer cylinder, the buffer cylinder is communicated with the connecting pipe, a piston is connected in the buffer cylinder in a sliding mode, an upper cover is connected on the buffer cylinder in a rotating mode, and a spring is installed between the upper cover and the piston and located in the buffer cylinder.

Preferably, a plurality of first grooves are formed in one side wall face of the adjusting piece, a plurality of limiting lugs are fixedly connected to one side wall face of the locking block, and the limiting lugs are inserted into the first grooves.

Preferably, an annular groove is formed in the sealing rubber ring, a plurality of limiting blocks are fixedly connected in the annular groove, the lower ends of the locking blocks are inserted into the annular groove, second grooves are formed in the other side wall surfaces of the locking blocks, the second grooves are matched with the limiting blocks, and the number of the locking blocks is equal to that of the limiting blocks.

Preferably, barbs are fixedly connected to the other side wall surface of the locking blocks.

Preferably, a first convex edge is fixedly connected to the inner wall surface of the sealing rubber ring, and a second convex edge is fixedly connected to the side wall surface of the sealing rubber ring, which is close to the lower bevel edge.

Preferably, two pairs of threaded holes are formed in the first flange plate and located on the outer side of the lower inclined opening, two pairs of through holes are formed in the pressing flange and located on the outer side of the upper inclined opening, bolts are inserted into the two pairs of through holes, and one end of each bolt is screwed into the corresponding threaded hole.

Preferably, the material of the sealing rubber ring is ethylene propylene diene monomer, and the material of the plurality of adjusting pieces is plastic.

Advantageous effects

The utility model provides a novel flange joint for pipeline connection, which has the following beneficial effects that the flange joint can be arranged at the flange end of other equipment through a second flange plate, a flange is driven by a bolt to tightly press a plurality of adjusting sheets, a locking block is pushed by the adjusting sheets to tightly clamp an inserted pipeline, meanwhile, a sealing rubber ring is tightly pressed by the adjusting sheets to provide sealing performance, when the water pressure in the installed pipeline is suddenly increased, a piston is pushed by the water pressure to compress a spring, water can flow into a buffer cylinder through the pressure, the tension on a joint is reduced, the pipeline is prevented from being pulled off from the flange joint, the water in the buffer cylinder can be discharged into a connecting pipe under the pushing of the spring after the water pressure is gradually stabilized, the pressing force of the spring can be adjusted by changing the screwing depth of an upper cover on the buffer cylinder, and the replacement of the spring can be facilitated by screwing the upper cover down.

Drawings

Fig. 1 is a front view of the internal structure of the present invention.

Fig. 2 is a top view of the seal rubber ring of the present invention.

Fig. 3 is a cross-sectional view a-a of fig. 2.

Fig. 4 is a cross-sectional view of B-B in fig. 2.

Fig. 5 is a front view of the tab of the present invention.

Fig. 6 is a side view of the tab of the present invention.

FIG. 7 is a top view of the tab of the present invention.

Fig. 8 is a front view of the locking block of the present invention.

FIG. 9 is a side view of the locking segment of the present invention

FIG. 10 is a bottom view of the platen according to the present invention

In the figure: 1. a sleeve; 2. a first flange plate; 3. a lower bevel opening; 4. sealing the rubber ring; 5. inserting the slots; 6. a regulating sheet; 7. a locking block; 8. pressing blue; 9. a bolt; 10. a barb; 11. a first convex edge; 12. a second convex edge; 13. a limiting block; 14. a first groove; 15. a limiting bump; 16. a second groove; 17. an annular groove; 18. an upper bevel opening; 19. a connecting pipe; 20. a second flange plate; 21. a buffer cylinder; 22. a piston; 23. an upper cover; 24. a spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-10, the present invention provides a technical solution: a novel flange joint for pipeline connection comprises a sleeve 1, wherein one end of the sleeve 1 is fixedly connected with a first flange plate 2, a lower bevel 3 is arranged in the first flange plate 2, a sealing rubber ring 4 is inserted in the lower bevel 3, an insertion groove 5 is arranged in the sealing rubber ring 4, a plurality of adjusting pieces 6 are inserted in the insertion groove 5, a plurality of locking blocks 7 are arranged on the sealing rubber ring 4 and positioned at the inner sides of the adjusting pieces 6, a flange 8 is arranged on the first flange plate 2, an upper bevel 18 is arranged in the flange 8, the upper ends of the adjusting pieces 6 are all contacted with the upper bevel 18, the other end of the sleeve 1 is communicated with a connecting pipe 19, one end of the connecting pipe 19 is fixedly connected with a second flange plate 20, a buffer cylinder 21 is fixedly connected to the outer wall surface of one side of the connecting pipe 19, and the buffer cylinder 21 is communicated with the connecting pipe 19, a piston 22 is slidably connected in the buffer cylinder 21, an upper cover 23 is screwed on the buffer cylinder 21, and a spring 24 is arranged in the buffer cylinder 21 and between the upper cover 23 and the piston 22; a first groove 14 is formed in one side wall surface of each of the plurality of adjusting pieces 6, a limiting convex block 15 is fixedly connected to one side wall surface of each of the plurality of locking blocks 7, and the limiting convex blocks 15 are inserted into the first grooves 14; an annular groove 17 is formed in the sealing rubber ring 4, a plurality of limiting blocks 13 are fixedly connected in the annular groove 17, the lower ends of the locking blocks 7 are inserted into the annular groove 17, second grooves 16 are formed in the other side wall surfaces of the locking blocks 7, the second grooves 16 are matched with the limiting blocks 13, and the number of the locking blocks 7 is equal to that of the limiting blocks 13; barbs 10 are fixedly connected to the other side wall surface of the locking blocks 7; a first convex edge 11 is fixedly connected to the inner wall surface of the sealing rubber ring 4, and a second convex edge 12 is fixedly connected to the side wall surface of the sealing rubber ring 4 close to the lower bevel connection 3; two pairs of threaded holes are formed in the first flange plate 2 and located on the outer side of the lower bevel opening 3, two pairs of through holes are formed in the flange pressing 8 and located on the outer side of the upper bevel opening 18, bolts 9 are inserted into the two pairs of through holes, and one end of each bolt 9 is screwed into the threaded hole; the material of the sealing rubber ring 4 is ethylene propylene diene monomer, and the material of the adjusting sheet 6 is plastic.

The embodiment is as follows: as can be known from the attached drawings 1-10 in the specification, when in use, the device can be installed at the flange end of other equipment through the second flange plate 20, a pipeline to be butted is inserted into the sleeve 1 through the flange 8, the bolt 9 is screwed by using a wrench, the flange 8 is driven by the bolt 9 to press the plurality of adjusting sheets 6, the adjusting sheets 6 can contract inwards under the action of the upper bevel opening 18 and the lower bevel opening 3, the locking block 7 is pushed by the plurality of adjusting sheets 6 to hoop the inserted pipeline, meanwhile, the sealing rubber ring 4 is pressed by the plurality of adjusting sheets 6 to provide sealing performance, when the water pressure in the installed pipeline is increased suddenly, the piston 22 is pushed by the water pressure and the spring 24 is compressed, water can flow into the buffer cylinder 21 through the pressure, the pulling force on the joint is reduced, the pipeline is prevented from being pulled out of the device, when the water pressure is gradually stabilized, the water in the buffer cylinder 21 can be discharged into the connecting pipe 19 under the pushing of the spring 24, the pressing force of the spring 24 can be adjusted by changing the screwing depth of the upper cover 23 on the buffer cylinder 21, and the replacement of the spring 24 can be facilitated by screwing down the upper cover 23.

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. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

Claims

1. The novel flange joint for pipeline connection comprises a sleeve (1) and is characterized in that one end of the sleeve (1) is fixedly connected with a first flange plate (2), a lower inclined opening (3) is formed in the first flange plate (2), a sealing rubber ring (4) is inserted in the lower inclined opening (3), an insertion groove (5) is formed in the sealing rubber ring (4), a plurality of adjusting sheets (6) are inserted in the insertion groove (5), a plurality of locking blocks (7) are arranged on the sealing rubber ring (4) and positioned on the inner sides of the adjusting sheets (6), a flange (8) is arranged on the first flange plate (2), an upper inclined opening (18) is formed in the flange (8), the upper ends of the adjusting sheets (6) are all contacted with the upper inclined opening (18), the other end of the sleeve (1) is communicated with a connecting pipe (19), one end of the connecting pipe (19) is fixedly connected with a second flange plate (20), the rigid coupling has buffer cylinder (21) on the outer wall of connecting pipe (19) one side, buffer cylinder (21) with connecting pipe (19) are linked together, sliding connection has piston (22) in buffer cylinder (21), buffer cylinder (21) top spin has connect upper cover (23), in buffer cylinder (21) and be located install spring (24) between upper cover (23) and piston (22).

2. The novel flange joint of pipeline connection according to claim 1, wherein a plurality of said adjusting pieces (6) are provided with a first groove (14) on one side wall, a plurality of said locking blocks (7) are fixedly connected with a limiting projection (15) on one side wall, and said limiting projection (15) is inserted into said first groove (14).

3. The novel flange joint of pipeline connection according to claim 1, characterized in that an annular groove (17) is formed in the seal rubber ring (4), a plurality of limit blocks (13) are fixedly connected in the annular groove (17), the lower ends of the plurality of locking blocks (7) are inserted into the annular groove (17), a second groove (16) is formed in the other side wall surface of the plurality of locking blocks (7), the second groove (16) is matched with the limit blocks (13), and the number of the plurality of locking blocks (7) is equal to the number of the limit blocks (13).

4. The novel flange joint for pipeline connection according to claim 1, wherein barbs (10) are fixedly connected to the other side wall surface of each of the locking blocks (7).

5. The novel flange joint of pipeline connection according to claim 1, wherein a first convex edge (11) is fixedly connected to the inner wall surface of the sealing rubber ring (4), and a second convex edge (12) is fixedly connected to the side wall surface of the sealing rubber ring (4) close to the lower bevel opening (3).

6. The novel flange joint of pipeline connection according to claim 1, wherein two pairs of threaded holes are formed in the first flange plate (2) and located on the outer side of the lower bevel opening (3), two pairs of through holes are formed in the flange (8) and located on the outer side of the upper bevel opening (18), bolts (9) are inserted into the two pairs of through holes, and one end of each bolt (9) is screwed into the corresponding threaded hole.

7. The novel flange joint for pipeline connection as claimed in claim 1, wherein the material of the sealing rubber ring (4) is ethylene propylene diene monomer, and the material of the plurality of adjusting pieces (6) is plastic.