CN212776102U

CN212776102U - Double-resistance pipe joint

Info

Publication number: CN212776102U
Application number: CN202021482809.XU
Authority: CN
Inventors: 顾海涛; 王春生
Original assignee: Henan Yuxi High Tech Co ltd
Current assignee: Henan Yuxi High Tech Co ltd
Priority date: 2020-07-24
Filing date: 2020-07-24
Publication date: 2021-03-23
Anticipated expiration: 2030-07-24

Abstract

The utility model relates to a double-resistance pipe joint, which is used for connecting a first pipeline and a second pipeline, wherein the first pipeline and the second pipeline are respectively and fixedly connected with a first flange and a second flange; the connecting structure also comprises a limiting ring sleeved on the periphery of the pipe body, and the circumferential position between the limiting ring and the pipe body is fixed; the movable flange is also circumferentially and uniformly provided with a plurality of threaded holes, the limiting ring is circumferentially and uniformly provided with a plurality of long circular arc-shaped holes, and the radian of each long circular arc-shaped hole is larger than the angle between two adjacent connecting holes and smaller than the angle between two adjacent threaded holes. The utility model discloses can connect two pipelines conveniently, and can not take place relative rotation between the body of the joint after connecting and the movable flange.

Description

Double-resistance pipe joint

Technical Field

The utility model relates to a connection structure technical field of mining gas drainage pipe, concretely relates to dual-resistance coupling.

Background

When the mining gas drainage pipe is used, all pipelines need to be connected for use, and the current connection mode is that a flange is fixedly connected to the end part of the gas drainage pipe, and the flanges of the two pipelines are connected together by using bolts. In the actual operation in-process, the condition that the bolt holes of two flanges are not aligned exists, and the workman rotates the pipeline and makes the corresponding hole site of two flanges align, and this process of rotating the pipeline is comparatively wasted time and energy, and the packaging efficiency is low.

Therefore, a movable flange is provided for aligning the connection hole position, such as a spiral gas drainage pipe connection structure disclosed in the chinese utility model patent with the publication number CN203421373U, but the pipe body and the movable flange can rotate relatively, so that the pipe body is easy to rotate in the actual use process, and the abrasion of the sealing ring is further caused, thereby having potential safety hazards; in addition, this way of changing the piping can greatly increase the cost of the process.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the to-be-solved technical problem of the utility model is to provide a dual resistance coupling, it can connect two pipelines conveniently, and can not take place relative rotation between the body and the loose flange of the joint after connecting.

In order to solve the technical problem, the utility model provides a double-resistance pipe joint for connect first pipeline and second pipeline, the periphery that first pipeline and second pipeline are close to the tip of double-resistance pipe joint is fixedly connected with first flange and second flange respectively, and the equipartition circumference has a plurality of through-holes on this first flange and second flange, including the body, all is provided with connection structure at the both ends of this body, and this connection structure includes the retaining ring of fixed connection in the tip periphery of body, and the loose flange that rotationally overlaps and establish in the body periphery, and the equipartition circumference has a plurality of connecting holes on this loose flange, and the quantity of this connecting hole is unanimous with the quantity of through-hole on the first flange; the connecting structure also comprises a limiting ring sleeved on the periphery of the pipe body, and the circumferential position between the limiting ring and the pipe body is fixed; the movable flange is characterized in that a plurality of threaded holes are uniformly distributed in the circumferential direction on one side, away from the baffle ring, of the movable flange, a plurality of long circular arc-shaped holes are uniformly distributed in the circumferential direction on the limiting ring, the long circular arc-shaped holes correspond to the threaded holes in a one-to-one mode, the radian of each long circular arc-shaped hole is larger than the angle between every two adjacent connecting holes, and the angle between every two adjacent threaded holes is larger than the radian of each long circular arc-shaped hole.

Preferably, the number of the connection holes is an even number, and the number of the screw holes is half of the number of the connection holes.

Preferably, a boss is arranged on one side, away from the baffle ring, of the movable flange, and the boss is provided with the threaded hole.

Preferably, one side of the movable flange, which is close to the baffle ring, is provided with a groove for accommodating the baffle ring.

Preferably, the outer diameter of the boss is larger than the inner diameter of the groove.

Preferably, a plurality of ribs are arranged in the circumferential direction of the outer periphery of the pipe body and are arranged along the axis direction of the pipe body, a plurality of sliding grooves matched with the ribs are arranged in the circumferential direction of the inner periphery of the limiting ring, the ribs correspond to the sliding grooves one to one, and the ribs penetrate through the corresponding sliding grooves in a sliding mode.

Preferably, one end of the limiting ring close to the movable flange extends outwards along the radial direction to form a connecting plate, and the connecting plate is provided with the long circular arc-shaped hole.

Preferably, one end of the baffle ring, which is far away from the movable flange, is provided with an annular groove, and a sealing ring is embedded in the annular groove.

The utility model discloses following beneficial effect has: when two pipelines need to be connected, the double-resistance pipe joint of the utility model can rotate the movable flanges at the two ends of the double-resistance pipe joint to ensure that the connecting holes of the two movable flanges are respectively aligned with the through holes of the first flange and the second flange one by one, and the two movable flanges are respectively assembled and fixed with the first flange and the second flange by bolts; and then, the screws penetrate through the long circular arc-shaped holes in the limiting rings to be in threaded connection with the corresponding threaded holes in the corresponding movable flanges, and the circumferential positions between the limiting rings and the pipe body are fixed, so that the circumferential positions between the movable flanges and the pipe body are also fixed correspondingly, and the pipe body and the movable flanges of the connected joint can be effectively prevented from rotating relatively.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic structural diagram of a double-resistance pipe joint according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

fig. 3 is a schematic view of a connection structure between the double-resistance pipe joint and the first pipe and the second pipe according to the embodiment of the present invention.

Reference numerals:

1-a pipe body; 2-a baffle ring; 3-a movable flange; 4-a limiting ring; 5-a first conduit; 6-a second conduit;

11-ribs; 21-a sealing ring; 31-a connection hole; 32-boss; 33-a threaded hole; 41-long arc-shaped holes; 51-a first flange; 61-second flange.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1 and fig. 2, the embodiment discloses a double-resistance pipe joint, which includes a pipe body 1, wherein connection structures are respectively arranged at two ends of the pipe body 1, each connection structure specifically includes a retaining ring 2, a movable flange 3 and a limit ring 4, wherein the retaining ring 2 is fixedly connected to the periphery of the end portion of the pipe body 1, the movable flange 3 is rotatably sleeved on the periphery of the pipe body 1, the limit ring 4 is slidably connected with the pipe body 1, and the circumferential relative position between the limit ring 4 and the pipe body 1 is fixed.

An annular groove is arranged at one end of the baffle ring 2 far away from the movable flange 3, and a sealing ring 21 is embedded in the annular groove.

Specifically, a plurality of ribs 11 are evenly distributed in the circumferential direction of the outer periphery of the pipe body 1, the ribs 11 are arranged along the axis direction of the pipe body 1, a plurality of sliding grooves matched with the ribs 11 are arranged in the circumferential direction of the inner periphery of the limit ring 4, the ribs 11 correspond to the sliding grooves in a one-to-one mode, and the ribs 11 are arranged in the corresponding sliding grooves in a sliding mode, so that the circumferential position between the limit ring 4 and the pipe body 1 is fixed.

Specifically, six connection holes 31 are uniformly distributed on the circumference of the movable flange 3. One side of the movable flange 3 close to the baffle ring 2 is provided with a groove for accommodating the baffle ring 2, one side of the movable flange 3 far away from the baffle ring 2 is provided with a boss 32, the outer diameter of the boss 32 is larger than the inner diameter of the groove, three threaded holes 33 are uniformly distributed in the circumferential direction on the boss 32, one end of the limiting ring 4 close to the movable flange 3 extends outwards along the radial direction to form a connecting plate, three long circular arc holes 41 are uniformly distributed in the circumferential direction on the connecting plate, the long circular arc holes 41 are in one-to-one correspondence with the threaded holes 33, the radian of each long circular arc hole 41 is larger than the angle (namely 60 degrees) between two adjacent connecting holes 31, and the angle (namely 120 degrees) between two adjacent threaded holes 33 is larger than the radian of each long.

Referring to fig. 3, the double-resistance pipe joint of the present embodiment is used for connecting a first pipe 5 and a second pipe 6, both of which are double-resistance pipes, the peripheries of the ends of the first pipe 5 and the second pipe 6, which are close to the double-resistance pipe joint, are fixedly connected with a first flange 51 and a second flange 61, respectively, six through holes are uniformly distributed on the first flange 51 and the second flange 61, and the through holes correspond to the connecting holes 31 on the movable flange 3 one to one. When in connection, the corresponding ends of the first pipeline 5 and the double-resistance pipe joint are aligned, the movable flange 3 of the double-resistance pipe joint close to the first pipeline 5 is rotated, so that the connecting holes 31 of the movable flange 3 are aligned with the through holes of the first flange 51 one by one, meanwhile, the threaded holes 33 are ensured to be positioned in the corresponding long circular arc-shaped holes 41, and the movable flange 3 and the first flange 51 are assembled and fixed by bolts; then, the corresponding limit ring 4 is slid to make the end of the connecting plate abut against the end of the movable flange 3, and then the screw penetrates through the long circular arc-shaped hole 41 to be in threaded connection with the corresponding threaded hole 33, so that the circumferential relative position between the movable flange 3 and the pipe body 1 is fixed. The second conduit 6 and the double resistant union are then connected in the same way.

It should be noted that, because the six connection holes 31 are formed in the movable flange 3, and the six connection holes 31 are circumferentially and uniformly distributed, that is, an angle between two adjacent connection holes is 60 °, when the movable flange is assembled, an angle difference between the corresponding through holes of the movable flange 3 and the first flange or the second flange is 30 ° at most, and when the movable flange is connected, the movable flange can be aligned with the first flange or the second flange only by rotating clockwise or counterclockwise by one angle, and the rotation angle does not exceed 30 °, in this embodiment, the radian of the long circular arc-shaped hole 41 is designed to be 60 °, so that after the movable flange is aligned with the first flange or the second flange, the corresponding threaded hole is always located in the long circular arc-shaped hole 41.

It should be noted that, as shown in fig. 1, a certain distance is provided between the end of the rib 11 and the movable flange, and the distance can move the movable flange 3 away from the retainer ring 2 when necessary, so as to fixedly connect the retainer ring 2 with the pipe body 1 during processing.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. The utility model provides a dual resistance coupling for connect first pipeline and second pipeline, first pipeline and second pipeline are close to the periphery of the tip of dual resistance coupling is the first flange of fixedly connected with and second flange respectively, and equal circumference equipartition has a plurality of through-holes on this first flange and the second flange, its characterized in that includes:

the connecting structure comprises a baffle ring fixedly connected to the periphery of the end part of the pipe body and a movable flange rotatably sleeved on the periphery of the pipe body, a plurality of connecting holes are uniformly distributed on the periphery of the movable flange, and the number of the connecting holes is consistent with that of the through holes on the first flange;

the connecting structure also comprises a limiting ring sleeved on the periphery of the pipe body, and the circumferential position between the limiting ring and the pipe body is fixed;

the movable flange is characterized in that a plurality of threaded holes are uniformly distributed in the circumferential direction on one side, away from the baffle ring, of the movable flange, a plurality of long circular arc-shaped holes are uniformly distributed in the circumferential direction on the limiting ring, the long circular arc-shaped holes correspond to the threaded holes in a one-to-one mode, the radian of each long circular arc-shaped hole is larger than the angle between every two adjacent connecting holes, and the angle between every two adjacent threaded holes is larger than the radian of each long circular arc-shaped hole.

2. A double resistant pipe joint as claimed in claim 1, wherein:

the number of the connecting holes is even, and the number of the threaded holes is half of the number of the connecting holes.

3. A double resistant pipe joint as claimed in claim 1, wherein:

and a boss is arranged on one side of the movable flange, which is far away from the baffle ring, and the boss is provided with the threaded hole.

4. A double resistant pipe joint as claimed in claim 3, wherein:

one side of the movable flange, which is close to the baffle ring, is provided with a groove for accommodating the baffle ring.

5. A double resistant pipe joint as claimed in claim 4, wherein:

the outer diameter of the boss is larger than the inner diameter of the groove.

6. A double resistant pipe joint as claimed in claim 1, wherein:

the outer circumference of the pipe body is circumferentially provided with a plurality of ribs, the ribs are arranged along the axis direction of the pipe body, the inner circumference of the limiting ring is circumferentially provided with a plurality of chutes matched with the ribs, the ribs correspond to the chutes in a one-to-one mode, and the ribs penetrate through the corresponding chutes in a sliding mode.

7. A double resistant pipe joint as claimed in claim 6, wherein:

one end of the limiting ring, which is close to the movable flange, extends outwards along the radial direction to form a connecting plate, and the connecting plate is provided with the long circular arc-shaped hole.

8. A double resistant pipe joint as claimed in claim 1, wherein:

one end of the baffle ring, which is far away from the movable flange, is provided with an annular groove, and a sealing ring is embedded in the annular groove.