CN216201315U - Combined type connecting joint for oil pipe - Google Patents

Abstract

The utility model discloses a combined type connecting joint for an oil pipe, which comprises two joint pipe bodies and a telescopic groove arranged at one end of each joint pipe body, wherein a sealing groove and a thread groove are sequentially formed in the inner walls of the joint pipe bodies on the two sides of the telescopic groove from outside to inside, a first sealing gasket is arranged in the sealing groove, a first fixing plate and a second fixing plate are symmetrically arranged on the outer walls of the joint pipe bodies on the two sides of the telescopic groove, the first fixing plate is connected with a first limiting plate through a first fastening bolt, the second fixing plate is connected with a second limiting plate through a second fastening bolt, and a telescopic spring is fixedly connected between the first limiting plate and the second limiting plate; wherein, the other end of one joint body is equipped with first butt joint seat, and the other end of another joint body is equipped with the second butt joint seat, and first butt joint seat passes through third fastening bolt and second butt joint seat fixed connection. The problem of among the oil pipe connection poor influence leakproofness of wire rope fastness, the limited connection inconvenience of oil pipe degree of freedom is solved.

Description

Combined type connecting joint for oil pipe

Technical Field

The utility model belongs to the technical field of oil pipe joints, and particularly relates to a combined type connecting joint for an oil pipe.

Background

The oil pipe transportation is the most economical and reasonable transportation mode for oil transportation, and when oil is transported, the connection mode between oil pipes is generally that a pipeline coupling is adopted for connection, and the oil pipe with external threads is screwed into the pipeline coupling with internal threads, so that an oil continuous transportation pipeline is formed, and the continuous transportation of oil is realized.

The sealing device has the advantages that the sealing device is connected with two oil pipes through a pipeline coupling, firstly, glass fibers or hemp ropes are wound on external threads of the oil pipes generally during sealing and then are screwed into the pipeline coupling, and once the operation is wrong, gaps are easy to generate to affect the sealing performance of the device due to poor firmness of the glass fibers or the hemp ropes; and secondly, when the connecting is carried out by using the pipeline coupling, at least one end of the oil pipes at two ends needs to be capable of freely rotating, and the oil pipes are difficult to rotate due to overlong length or overlarge weight, so that the connection is inconvenient.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a combined type connecting joint for an oil pipe, so as to solve the problems that the tightness is affected due to poor firmness of a wire rope and the freedom degree of the oil pipe is limited and the connection is inconvenient.

In order to achieve the purpose, the utility model provides the following technical scheme: a combined type connecting joint for an oil pipe comprises two joint pipe bodies and a telescopic groove arranged at one end of each joint pipe body, wherein a sealing groove and a threaded groove are sequentially formed in the inner walls of the joint pipe bodies on the two sides of the telescopic groove from outside to inside, a first sealing gasket is arranged in the sealing groove, a first fixing plate and a second fixing plate are symmetrically arranged on the outer walls of the joint pipe bodies on the two sides of the telescopic groove, the first fixing plate is connected with a first limiting plate through a first fastening bolt, the second fixing plate is connected with a second limiting plate through a second fastening bolt, and a telescopic spring is fixedly connected between the first limiting plate and the second limiting plate;

one of the two ends of the joint pipe body is provided with a first butt joint seat, the other end of the joint pipe body is provided with a second butt joint seat, and the first butt joint seat is fixedly connected with the second butt joint seat through a third fastening bolt.

Adopt above-mentioned technical scheme, at first with on a joint body passes through thread groove threaded connection in it to an oil pipe, then respectively through first fastening bolt, the distance between first limiting plate of second fastening bolt adjustment and the second limiting plate position and fixed for first sealed pad accomplishes this joint body and this oil pipe's sealed with this oil pipe in close contact with, the installation between another joint body and another oil pipe can be accomplished to action more than the repetition, make first butt joint seat and second butt joint seat fixed connection through third fastening bolt at last, realize connecting and connecting through two joint bodies between two oil pipes. The combined connecting joint of the two joint pipe bodies enables the joint pipe bodies to be screwed on the oil pipe respectively, so that the problems of inconvenience in screwing and connection due to overlong length or overlarge weight of the oil pipe are avoided; and through the setting of seal groove and first sealed pad, the area setting of thread groove has been reduced, make the connection of connecting body and oil pipe become simple, connection efficiency has been improved, and it is sealed to extrude first sealed pad gasket through twisting after connecting and replace twisting to move the sealed silk rope such as winding glass silk or rope made of hemp before connecting and sealed, locate sealed step and carry out the sealed condition of adjustment of detection more easily at last, guarantee sealed effect, the fastness of having avoided glass silk or rope made of hemp is relatively poor, in case the operation error easily produces the problem that the gap influences device sealing performance. In addition, the contact between the first sealing gasket and the oil pipe can be automatically adjusted due to the arrangement of the telescopic spring, so that the sealing effect is ensured due to the adaptation to the change of expansion with heat and contraction with cold of the pipeline.

Furthermore, an annular clamping groove is formed in the first butt joint seat, an annular convex body is arranged on the second butt joint seat, and the annular convex body is matched with the annular clamping groove. The cooperation setting of ring-shaped groove and annular convex body makes first butt joint seat and second butt joint seat butt joint swift, and increase area of contact improves the sealed effect of being connected of first butt joint seat and second butt joint seat.

Furthermore, a second sealing gasket is arranged in the annular clamping groove. The setting of the second sealing gasket can extrude the second sealing gasket when the annular convex body is arranged in the annular clamping groove, and the second sealing gasket can be filled between the annular clamping groove and the annular convex body, so that the sealing effect is further improved.

Furthermore, a limiting bump is arranged on the first butt joint seat, a limiting groove is arranged on the second butt joint seat, and the limiting groove is matched with the limiting bump. The first butt joint seat and the second butt joint seat can be in place in one step, dislocation is avoided, and the limiting convex blocks and the limiting grooves are matched and arranged, so that the butt joint is more rapid.

Further, the telescopic slots are symmetrically arranged in two. The connector pipe body is convenient to be stressed uniformly, the service life of the connector pipe body is prolonged, and the connecting and sealing effect is ensured.

Further, the length of each telescopic slot accounts for one third of the length of the joint pipe body.

Further, the first gasket extends out of an end of the joint pipe body. The area of the first sealing gasket is increased, so that the contact sealing between the first sealing gasket and the oil pipe is increased.

Furthermore, the length of the first sealing gasket extending out of the joint pipe body is 2-4 cm. The length setting enables the first sealing gasket to be sealed by the pressure of the joint pipe body and the contact of the oil pipe, and waste of the first sealing gasket is avoided.

Further, the telescopic springs are symmetrically arranged into two, and the first fastening bolt and the second fastening bolt are arranged between the two telescopic springs. The arrangement is convenient for the expansion spring to be stressed uniformly, and the sealing effect under the elastic force adjustment is ensured.

Further, a sealing ring is arranged on the inner wall of one end, far away from the first sealing gasket, of the joint pipe body. Through the setting of sealing washer, can extrude the sealing washer each other after oil pipe gets into the joint body, make the sealing washer fill up the space between oil pipe and the joint body, strengthen the leakproofness of oil pipe and joint body.

Furthermore, a limiting protrusion for limiting the rotation of the sealing ring is arranged on the inner wall of one end, away from the first sealing gasket, of the joint pipe body.

The utility model has the following beneficial effects:

according to the utility model, the combined connecting joint of the two joint pipe bodies is arranged, so that the joint pipe bodies can be respectively screwed on the oil pipe, and the problems of inconvenience in screwing and connection due to overlong length or overlarge weight of the oil pipe are avoided; and through the setting of seal groove and first sealed pad, the area setting of thread groove has been reduced, make the connection of connecting body and oil pipe become simple, connection efficiency has been improved, and it is sealed to extrude first sealed pad gasket through twisting after connecting and replace twisting to move the sealed silk rope such as winding glass silk or rope made of hemp before connecting and sealed, locate sealed step and carry out the sealed condition of adjustment of detection more easily at last, guarantee sealed effect, the fastness of having avoided glass silk or rope made of hemp is relatively poor, in case the operation error easily produces the problem that the gap influences device sealing performance. In addition, the contact between the first sealing gasket and the oil pipe can be automatically adjusted due to the arrangement of the telescopic spring, so that the sealing effect is ensured due to the adaptation to the change of expansion with heat and contraction with cold of the pipeline.

Drawings

FIG. 1 is a schematic view of a combination joint structure for an oil pipe according to example 1;

FIG. 2 is a schematic view of the combination of the modular connection joint shown in FIG. 1;

FIG. 3 is a cross-sectional view of the modular connection joint of FIG. 1;

fig. 4 is a schematic view of a combination joint structure for an oil pipe according to example 2.

In the figure: 1. a joint pipe body; 2. a telescopic groove; 3. a sealing groove; 4. a thread groove; 5. a first gasket; 6. a first fixing plate; 7. a second fixing plate; 8. a first limit plate; 9. a second limiting plate; 10. a tension spring; 11. a first docking cradle; 12. a second docking cradle; 13. an annular neck; 14. an annular convex body; 15. a second gasket; 16. a limiting bump; 17. a limiting groove; 18. a second fastening bolt; 19. a seal ring; 20. a limiting bulge; 21. a first fastening bolt; 22. and a third fastening bolt.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and examples.

Example 1

A combined type connecting joint for an oil pipe is shown in figures 1-3 and comprises two joint pipe bodies 1 and two telescopic grooves 2 arranged at one end of each joint pipe body 1, wherein the two telescopic grooves 2 are symmetrically arranged. The inner walls of the joint pipe bodies 1 on the two sides of the telescopic groove 2 are sequentially provided with a sealing groove 3 (shown in fig. 3) and a thread groove 4 from outside to inside, a first sealing gasket 5 is arranged in the sealing groove 3, the first sealing gasket 5 extends out of the end part of the joint pipe body 1, and preferably, the length of the first sealing gasket 5 extending out of the joint pipe body 1 is 2-4 cm. A first fixing plate 6 and a second fixing plate 7 are symmetrically arranged on the outer wall of the joint pipe body 1 at two sides of the telescopic groove 2, the first fixing plate 6 is connected with a first limiting plate 8 through a first fastening bolt 21, the second fixing plate 7 is connected with a second limiting plate 9 through a second fastening bolt 18, telescopic springs 10 are fixedly connected between the first limiting plate 8 and the second limiting plate 9, the number of the telescopic springs 10 is two, and the first fastening bolt 21 and the second fastening bolt 18 are both arranged between the two telescopic springs 10; wherein, the other end of one joint pipe body 1 is provided with a first butt joint seat 11, the other end of the other joint pipe body 1 is provided with a second butt joint seat 12, and the first butt joint seat 11 is fixedly connected with the second butt joint seat 12 through a third fastening bolt 22 (shown in fig. 2).

Specifically, as shown in fig. 1 and 3, a ring-shaped slot 13 is disposed on the first docking seat 11, a ring-shaped protrusion 14 is disposed on the second docking seat 12, and the ring-shaped protrusion 14 is adapted to the ring-shaped slot 13.

As shown in fig. 3, a second seal 15 is disposed in the ring-shaped groove 13.

Specifically, as shown in fig. 1 and 3, a limiting bump 16 is disposed on the first docking seat 11, a limiting groove 17 is disposed on the second docking seat 12, and the limiting groove 17 is matched with the limiting bump 16.

Specifically, as shown in fig. 1 and 3, a sealing ring 19 is disposed on an inner wall of one end of the joint pipe body 1, which is away from the first sealing gasket 5, and a limiting protrusion 20 (shown in fig. 3) for limiting rotation of the sealing ring 19 is disposed on an inner wall of one end of the joint pipe body 1, which is away from the first sealing gasket 5.

The working principle of the embodiment is as follows:

firstly, inserting a joint pipe body 1 into the end part of an oil pipe, and then connecting the joint pipe body 1 to the oil pipe in a threaded manner through a thread groove 4 in the joint pipe body;

secondly, adjusting the positions of the first limiting plate 8 and the second limiting plate 9 through the first fastening bolt 21 and the second fastening bolt 18 respectively, and fixing the distance between the positions;

thirdly, the distance of the limiting plate on the other side of the joint pipe body 1 is fixed by repeating the second step, so that the first sealing gasket 5 is in close contact with the oil pipe, and the joint pipe body 1 is sealed with the oil pipe;

fourthly, repeating the first step to the third step to complete the installation between the other joint pipe body 1 and the other oil pipe;

fifthly, the limiting bump 16 is placed in the limiting groove 17, the annular clamping groove 13 and the annular convex body 14 mutually extrude the second sealing gasket 15, the first butt joint seat 11 and the second butt joint seat 12 are fixedly connected through the third fastening bolt 22, and therefore connection between two oil pipes is achieved through connection of the two joint pipe bodies 1.

Example 2

A combined type connecting joint for oil pipes, as shown in figure 4, is different from the embodiment 1 only in that one telescopic groove 2 is arranged at one end of each joint pipe body 1, and the rest arrangement is the same as the embodiment 1.

The working principle of the embodiment is as follows:

firstly, inserting a joint pipe body 1 into the end part of an oil pipe, and then connecting the joint pipe body 1 to the oil pipe in a threaded manner through a thread groove 4 in the joint pipe body;

secondly, adjusting the positions of the first limiting plate 8 and the second limiting plate 9 through the first fastening bolt 21 and the second fastening bolt 18 respectively, and fixing the distance between the first limiting plate and the second limiting plate to enable the first sealing gasket 5 to be in close contact with the oil pipe, so that the sealing between the joint pipe body 1 and the oil pipe is completed;

thirdly, repeating the first step and the second step to complete the installation between the other joint pipe body 1 and the other oil pipe;

fourthly, the limiting bump 16 is placed in the limiting groove 17, the annular clamping groove 13 and the annular convex body 14 extrude the second sealing gasket 15 mutually, the first butt joint seat 11 and the second butt joint seat 12 are fixedly connected through the third fastening bolt 22, and therefore connection between two oil pipes is achieved through connection of the two joint pipe bodies 1.

In summary, the combined type connecting joint of the two joint pipe bodies 1 enables the joint pipe bodies 1 to be screwed on an oil pipe respectively, so that the problems of inconvenience in screwing and inconvenient connection due to overlong length or overlarge weight of the oil pipe are solved, the first butt joint seat 11 and the second butt joint seat 12 are enabled to be butted fast through the matching arrangement of the annular clamping groove 13 and the annular convex body 14, and the connection sealing effect of the first butt joint seat 11 and the second butt joint seat 12 is improved due to the increased contact area; the arrangement of the second sealing gasket 15 enables the annular convex body 14 to be capable of extruding the second sealing gasket 15 when being arranged in the annular clamping groove 13, and the second sealing gasket 15 can be filled between the annular clamping groove 13 and the annular convex body 14, so that the sealing effect is further improved; and the first butt joint seat 11 and the second butt joint seat 12 are butt jointed through the matching arrangement of the limiting convex block 16 and the limiting groove 17, so that dislocation can be avoided, and the butt joint is more rapid and can be realized in one step. Still through the setting of seal groove 3 and first sealed 5, make 5 gaskets of first sealed pad of extrusion sealed replace twisting move before the connection twine the glass silk or twine the twine rope etc. it is sealed, locate to carry out the sealed condition of adjustment of easier detection at last with sealed step, guarantee sealed effect, the fastness of having avoided glass silk or twine is relatively poor, in case the operation error easily produces the problem that the gap influences device sealing performance, specifically, the setting of seal groove 3, the area setting of thread groove 4 has been reduced, 3 partial quick pegs graft of seal groove have shortened the twisting of thread groove 4 and move the connection time, make the connection of connecting body 1 and oil pipe become simple, it is convenient, the connection efficiency is greatly improved. In addition, the accuracy of the thread processing of the joint pipe body 1 is reduced, and the manufacture is relatively simple. Specifically, through the use of first sealed 5 of filling up for twist move and to connect the back extrusion first sealed 5 gaskets of filling up sealed replace twist move connect before the silk rope such as winding glass silk or rope made of hemp sealed, will seal the step and locate and carry out the sealed condition of adjustment more easily at last, guarantee sealed effect, avoided glass silk or rope made of hemp the fastness relatively poor, in case the operation error easily produce the problem that the gap influences device sealing performance. Particularly, the arrangement of the telescopic spring 10 enables the contact between the first sealing gasket 5 and the oil pipe to be automatically adjusted, so that the sealing effect is ensured to adapt to the change of expansion caused by heat and contraction caused by cold of the pipeline.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the embodiments of the present invention and not for limiting the same, and although the embodiments of the present invention are described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the embodiments of the present invention, and these modifications or equivalent substitutions cannot make the modified technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (9)

1. A combined type connecting joint for an oil pipe is characterized by comprising two joint pipe bodies (1) and a telescopic groove (2) arranged at one end of each joint pipe body (1), the inner wall of the joint pipe body (1) at two sides of the telescopic groove (2) is provided with a sealing groove (3) and a thread groove (4) from outside to inside in sequence, a first sealing gasket (5) is arranged in the sealing groove (3), a first fixing plate (6) and a second fixing plate (7) are symmetrically arranged on the outer wall of the joint pipe body (1) at two sides of the telescopic groove (2), the first fixing plate (6) is connected with a first limit plate (8) through a first fastening bolt (21), the second fixing plate (7) is connected with a second limit plate (9) through a second fastening bolt (18), an expansion spring (10) is fixedly connected between the first limiting plate (8) and the second limiting plate (9);

one of the two butt joint bases is characterized in that a first butt joint base (11) is arranged at the other end of the joint pipe body (1), a second butt joint base (12) is arranged at the other end of the joint pipe body (1), and the first butt joint base (11) is fixedly connected with the second butt joint base (12) through a third fastening bolt (22).

2. The combined type connecting joint for the oil pipe as claimed in claim 1, wherein an annular clamping groove (13) is formed in the first butt joint seat (11), an annular convex body (14) is formed in the second butt joint seat (12), and the annular convex body (14) is matched with the annular clamping groove (13).

3. Combined joint for oil pipes according to claim 2, characterized in that a second gasket (15) is provided inside the annular groove (13).

4. The combined type connecting joint for the oil pipe as claimed in claim 1, wherein a limiting bump (16) is arranged on the first butt joint seat (11), a limiting groove (17) is arranged on the second butt joint seat (12), and the limiting groove (17) is matched with the limiting bump (16).

5. Combined joint for oil pipes according to claim 1, characterized in that the telescopic slots (2) are symmetrically arranged in two.

6. A combined joint for oil pipes according to claim 1 characterized in that the first gasket (5) extends beyond the end of the joint body (1).

7. A combined joint for oil pipes according to claim 1 characterized in that the telescopic springs (10) are symmetrically arranged in two, and the first fastening bolt (21) and the second fastening bolt (18) are both arranged between the two telescopic springs (10).

8. A combined joint for oil pipes according to claim 1 characterized in that the inner wall of the end of the joint body (1) remote from the first gasket (5) is provided with a sealing ring (19).

9. The combination connection joint for oil pipes of claim 8, characterized in that the inner wall of the end of the joint body (1) far away from the first sealing gasket (5) is provided with a limiting protrusion (20) for limiting the rotation of the sealing ring (19).

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