CN214662736U

CN214662736U - Stainless steel flange crossover sub

Info

Publication number: CN214662736U
Application number: CN202120736426.9U
Authority: CN
Inventors: 李宏俊
Original assignee: Yangzhou Shenghong Machinery Co ltd
Current assignee: Yangzhou Shenghong Machinery Co ltd
Priority date: 2021-04-12
Filing date: 2021-04-12
Publication date: 2021-11-09
Anticipated expiration: 2031-04-12

Abstract

The utility model discloses a stainless steel flange crossover sub, including first flange thread tooth, the internal surface of first flange thread tooth rotates and is connected with connecting block thread tooth, the lower fixed surface of connecting block thread tooth is connected with baffle piece thread tooth, the quantity of baffle piece thread tooth is two and controls distribution, left side the front fixed surface of baffle piece thread tooth is connected with support bar thread tooth, the right surface and the right side baffle piece thread tooth sliding connection of support bar thread tooth. The utility model discloses, realize at the installation initial stage, use the screw thread to revolve wrong, reach and guarantee that the packing ring can not produce displacement and the even purpose of atress, through designing shorter thread tooth and bolt, realize both and bear the load jointly, reach the purpose of avoiding producing metal fatigue, through design shield piece and support bar, realize avoiding the inside liquid of pipeline to flow when changing the packing ring, reach and avoid leaking the purpose that does benefit to the clearance.

Description

Stainless steel flange crossover sub

Technical Field

The utility model relates to a stainless steel flange technical field especially relates to a stainless steel flange crossover sub.

Background

The flange is also called flange disc or flange, the flange is a part for connecting shafts and is used for connecting pipe ends, the flange is also used on an inlet and an outlet of equipment and is used for connecting two pieces of equipment, such as a speed reducer flange, a flange connection or a flange joint, the flange, a gasket and a bolt are connected with each other to form a detachable connection of a combined sealing structure, and the pipeline flange is a flange for piping in a pipeline device. Stainless steel flange crossover sub the loss is higher when using, and the mutual wearing and tearing are serious between the ring flange, and directly place the gasket between the ring flange usually, can cause the extrusion to the gasket at the in-process of screw up, and the easy atress of gasket is inhomogeneous the back damage, has reduced the leakproofness of flange.

For example, a stainless steel flange crossover sub that patent number CN212319074U introduced, though solved and can cause the extrusion to the gasket in the screw-up process, the easy inhomogeneous back damage problem of atress of gasket, still has following defect:

1. the existing stainless steel flange adapter cannot perfectly balance the pressure on the gasket in the screwing process, and the gasket can generate displacement;

2. the existing stainless steel flange adapter causes the vibration of the pipeline to cause the connecting piece at the connecting part to be loaded due to the water hammer effect of fluid in the pipeline, and can generate fatigue for a long time;

3. the liquid in the pipeline must be cleaned up when the gasket is replaced by the conventional stainless steel flange adapter, otherwise, leakage is generated, and the site is cleaned up after construction is finished.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a stainless steel flange adapter.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a stainless steel flange adapter comprises a first flange, wherein the inner surface of the first flange is rotatably connected with a connecting block, the lower surface of the connecting block is fixedly connected with two baffle plates, the baffle plates are distributed leftwards and rightwards, the front surface of the baffle plate on the left side is fixedly connected with a supporting strip, and the right surface of the supporting strip is in sliding connection with the baffle plate on the right side;

the left fixed surface of first flange is connected with the second flange, the internal thread of second flange is connected with the bolt, the right-hand member of bolt extends to the right surface of first flange, the surface screw thread of bolt has the nut, the right surface of second flange is provided with the fastening groove, the left fixed surface of first flange is connected with the bulge loop, the surface of bulge loop and the internal surface in fastening groove all are provided with the thread tooth, the left surface of bulge loop is provided with first packing ring.

As a further description of the above technical solution:

the inside of connecting block is provided with disc spring, the quantity of connecting block is two and upper and lower symmetrical arrangement.

As a further description of the above technical solution:

the inner parts of the first flange and the second flange form a flow pipe, and the diameter of the baffle plate is the same as the inner diameter of the flow pipe.

As a further description of the above technical solution:

the outer surface of the nut is fixedly connected with a steel wire rope, a round hole is formed in the right surface of the first flange, and one end, far away from the nut, of the steel wire rope is fixedly connected with the round hole.

As a further description of the above technical solution:

the length of the thread tooth is 0.5 times of the length of the convex ring, and the height of the first washer is consistent with the height of the convex ring.

As a further description of the above technical solution:

the left surface of the first flange is provided with a groove at the upper side of the convex ring, and the groove is fixedly connected with a second gasket.

As a further description of the above technical solution:

the bolt is countersunk, and the support bar is internally provided with a hinge.

As a further description of the above technical solution:

the hinge rotates in the tangential direction of the flow tube.

The utility model discloses following beneficial effect has:

1. compared with the prior art, the stainless steel flange adapter connector realizes the purpose that the gasket cannot generate displacement and the stress is uniform by screwing the threads at the initial installation stage by designing the thread teeth.

2. Compared with the prior art, the stainless steel flange adapter joint realizes that the stainless steel flange adapter joint and the bolt bear load together by designing the shorter thread teeth and the shorter bolt, and achieves the purpose of avoiding metal fatigue.

3. Compared with the prior art, this stainless steel flange crossover sub through design fender piece and support bar, realizes avoiding the inside liquid outflow of pipeline when changing the packing ring, reaches to avoid leaking the purpose that does benefit to the clearance.

Drawings

Fig. 1 is a schematic view of an internal structure of a stainless steel flange adapter according to the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

fig. 3 is a right side view of a stainless steel flange adapter according to the present invention;

fig. 4 is the utility model provides a stainless steel flange crossover sub's overall structure schematic diagram.

Illustration of the drawings:

1. a first flange; 2. connecting blocks; 3. a baffle plate sheet; 4. a supporting strip; 5. a first gasket; 6. thread teeth; 7. a bolt; 8. a nut; 9. a wire rope; 10. a second gasket; 11. a circular hole; 12. a flow tube; 13. a second flange; 14. a convex ring; 15. and (5) fastening the groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, the utility model provides a pair of stainless steel flange crossover sub: the connecting structure comprises a first flange 1, wherein the inner surface of the first flange 1 is rotatably connected with connecting blocks 2, disc springs are arranged inside the connecting blocks 2, the number of the connecting blocks 2 is two, the two connecting blocks are arranged in an up-down symmetrical manner, baffle plates 3 are fixedly connected to the lower surface of the connecting blocks 2, the baffle plates 3 are used for preventing liquid from flowing out, the number of the baffle plates 3 is two, the baffle plates 3 are distributed left and right, a supporting strip 4 is fixedly connected to the front surface of the baffle plate 3 on the left side, the supporting strip 4 is used for limiting the baffle plate 3, and the right surface of the supporting strip 4 is in sliding connection with the baffle plate 3 on the right side;

the left surface of the first flange 1 is fixedly connected with a second flange 13, a flow pipe 12 is formed inside the first flange 1 and the second flange 13, the hinge rotates along the tangential direction of the flow pipe 12, the diameter of the baffle plate 3 is the same as the inner diameter of the flow pipe 12, a bolt 7 is connected with the inner thread of the second flange 13, the bolt 7 is of a countersunk head type, the hinge is arranged inside the supporting bar 4, the right end of the bolt 7 extends to the right surface of the first flange 1, the outer surface of the bolt 7 is in threaded connection with a nut 8, the outer surface of the nut 8 is fixedly connected with a steel wire rope 9, the right surface of the first flange 1 is provided with a round hole 11, one end of the steel wire rope 9, far away from the nut 8, is fixedly connected with the round hole 11, the right surface of the second flange 13 is provided with a fastening groove 15, the left surface of the first flange 1 is fixedly connected with a convex ring 14, the outer surface of the convex ring 14 and the inner surface of the fastening groove 15 are both provided with thread teeth 6, the length of the thread teeth 6 is 0.5 times that of the convex ring 14, the height of the first gasket 5 is consistent with that of the convex ring 14, a groove is formed in the left surface of the first flange 1 and located on the upper side of the convex ring 14, the second gasket 10 is fixedly connected to the inner portion of the groove, the first gasket 5 is arranged on the left surface of the convex ring 14, and the first gasket 5 is used for sealing.

The working principle is as follows: be the same direction of axial with flow tube 12 with two fender pieces 3 and arrange, and it is spacing to carry out through support bar 4, place the rotatory first flange 1 of assigned position with first packing ring 5 and second packing ring 10, first flange 1 contacts with second flange 13 when staggering just between thread tooth 6, again carry out construction bolt 7 and nut 8, nut 8 draws through wire rope 9, can prevent to become flexible, when needs are dismantled, when first flange 1 separates with second flange 13, support bar 4 separates, connecting block 2 receives disc spring's traction and drives fender piece 3 closure.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. A stainless steel flange crossover sub, includes first flange (1), its characterized in that: the inner surface of the first flange (1) is rotatably connected with a connecting block (2), the lower surface of the connecting block (2) is fixedly connected with two baffle plates (3), the baffle plates (3) are distributed leftwards and rightwards, a supporting strip (4) is fixedly connected to the front surface of the baffle plate (3) on the left side, and the right surface of the supporting strip (4) is in sliding connection with the baffle plate (3) on the right side;

the left fixed surface of first flange (1) is connected with second flange (13), the internal thread of second flange (13) is connected with bolt (7), the right-hand member of bolt (7) extends to the right surface of first flange (1), the surface threaded connection of bolt (7) has nut (8), the right surface of second flange (13) is provided with fastening groove (15), the left fixed surface of first flange (1) is connected with bulge loop (14), the surface of bulge loop (14) and the internal surface of fastening groove (15) all are provided with thread tooth (6), the left surface of bulge loop (14) is provided with first packing ring (5).

2. A stainless steel flange adapter according to claim 1, wherein: the inside of connecting block (2) is provided with the belleville spring, the quantity of connecting block (2) is two and upper and lower symmetrical arrangement.

3. A stainless steel flange adapter according to claim 1, wherein: the inner parts of the first flange (1) and the second flange (13) form a flow pipe (12), and the diameter of the baffle plate (3) is the same as the inner diameter of the flow pipe (12).

4. A stainless steel flange adapter according to claim 1, wherein: the outer fixed surface of nut (8) is connected with wire rope (9), the right surface of first flange (1) is provided with round hole (11), wire rope (9) keep away from the one end and the round hole (11) fixed connection of nut (8).

5. A stainless steel flange adapter according to claim 1, wherein: the length of the thread tooth (6) is 0.5 times of the length of the convex ring (14), and the height of the first washer (5) is consistent with the height of the convex ring (14).

6. A stainless steel flange adapter according to claim 1, wherein: a groove is formed in the left surface of the first flange (1) and located on the upper side of the convex ring (14), and a second gasket (10) is fixedly connected to the inner portion of the groove.

7. A stainless steel flange adapter according to claim 1, wherein: the bolt (7) is of a countersunk head type, and a hinge is arranged inside the supporting strip (4).

8. A stainless steel flange adapter according to claim 7, wherein: the hinge rotates in the tangential direction of the flow tube (12).