CN210398000U

CN210398000U - Airtight internal thread joint

Info

Publication number: CN210398000U
Application number: CN201921387179.5U
Authority: CN
Inventors: 祖波
Original assignee: Fuzhou Yushun Irrigation Equipment Co ltd
Current assignee: Fuzhou Yushun Irrigation Equipment Co ltd
Priority date: 2019-08-26
Filing date: 2019-08-26
Publication date: 2020-04-24
Anticipated expiration: 2029-08-26

Abstract

The utility model discloses an air-tight internal thread joint, which belongs to the technical field of oil casing pipe connection and comprises a connecting pipe, wherein the inner side walls of two sides of the connecting pipe are both provided with a first thread groove, the inside of the connecting pipe is fixedly connected with an inner sleeve pipe and two inner sleeve pipes, the inner side wall of the inner sleeve pipe is provided with a second thread groove, two sides of the connecting pipe are detachably connected with a pipe body, two ends of the pipe body can be in threaded connection with two sides of the connecting pipe, the direction of the pipe body does not need to be adjusted when in use, the convenience of connection between the pipe bodies is improved, the inner wall of the connecting pipe is provided with the first thread groove, the inner wall of the inner sleeve pipe is provided with the second thread groove, a first thread column and a second thread column at the bottom of the pipe body can be in threaded connection with the first thread groove and the second thread, the tightness and firmness of the connection between the pipe bodies are improved.

Description

Airtight internal thread joint

Technical Field

The utility model relates to an oil jacket union coupling technical field especially relates to an airtight female joint.

Background

At present, an oil casing is a special oil pipe necessary for exploiting oil and natural gas, hundreds of steel pipes are connected through threads to form a pipe column with the length of thousands of meters, a joint is the weakest link, and the problem that how to improve the connection performance of the joint and how to avoid failure accidents are particularly concerned in oil casing production plants and oil fields is solved.

The general one end of current oil sleeve pipe has been seted up the thread groove, the other end is fixed with the screw thread post, in oil sheathed tube connection process, need align each other between the oil sleeve pipe, and twist the thread groove and then fix the connection between the oil sleeve pipe with the screw thread post, in operation process, be subject to oil sheathed tube structure, the direction of oil sleeve pipe must be adjusted, it is comparatively troublesome, and only rely on single threaded connection, influence the tight type of connection and the firmness between the oil sleeve pipe easily, for this reason, we propose an airtight female connection.

SUMMERY OF THE UTILITY MODEL

The utility model provides an airtight female adapter aims at connecting between the oil casing pipe that can be nimble convenient to can improve the connection between the oil casing pipe closely type.

The utility model provides a specific technical scheme as follows:

the utility model provides a pair of airtight female connection, the connecting pipe comprises a connecting pipe, first thread groove has all been seted up to connecting pipe both sides inside wall, sleeve pipe and interior sleeve pipe in the inside fixedly connected with of connecting pipe are two, the second thread groove has been seted up to interior sleeve pipe inside wall, the connecting pipe both sides can be dismantled and be connected with the body, the first screw thread post of body bottom fixedly connected with, first screw thread post and first thread groove mutually support, the inside fixedly connected with second screw thread post of body, second screw thread post and second thread groove mutually support.

Optionally, a first sealing washer is bonded to the bottom of the inner sleeve, and a second sealing washer is bonded to the bottom of the second threaded column.

Optionally, an annular groove is formed in the middle of the outer side wall of the connecting pipe.

Optionally, the second threaded column bottom is parallel to the bottom of the first threaded column.

The utility model has the advantages as follows:

the utility model provides an airtight female adapter, it is connected between to the oil jacket pipe through the connecting pipe, the both ends of body all can with the both sides threaded connection of connecting pipe, the direction of body need not to adjust when using, the convenience of connecting between the body has been improved, first thread groove has been seted up to the inner wall of connecting pipe, second thread groove has been seted up to interior sheathed tube inner wall, the first thread post and the second thread post of body bottom can respectively with first thread groove and the mutual threaded connection of second thread groove, under the prerequisite that does not influence body normal use, the mode of current single threaded connection has been replaced, the compactness and the fastness of connecting between the body have been improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic view of an overall structure of an airtight female connector according to an embodiment of the present invention;

fig. 2 is a schematic view of an internal cross-sectional structure of a connecting pipe of an airtight female connector according to an embodiment of the present invention;

fig. 3 is a schematic view of a cross-sectional structure inside a pipe body of an airtight female screw joint according to an embodiment of the present invention.

In the figure: 1. a connecting pipe; 101. a first thread groove; 2. an inner sleeve; 201. a second thread groove; 3. an annular groove; 4. a first sealing gasket; 5. a pipe body; 501. a first threaded post; 6. a second threaded post; 7. a second sealing gasket.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, 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 efforts belong to the protection scope of the present invention.

An airtight female screw joint according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 3.

Referring to fig. 1, fig. 2 and fig. 3, the embodiment of the utility model provides a pair of airtight female adapter, including connecting pipe 1, first thread groove 101 has all been seted up to 1 both sides inside wall of connecting pipe, sleeve pipe 2 is two in 1 inside fixedly connected with of connecting pipe 2 and interior sleeve pipe 2 inside wall, second thread groove 201 has been seted up to interior sleeve pipe 2 inside wall, 1 both sides of connecting pipe can be dismantled and be connected with body 5, the first thread post 501 of 5 bottom fixedly connected with of body, first thread post 501 is mutually supported with first thread groove 101, the inside fixedly connected with second thread post 6 of body 5, second thread post 6 is mutually supported with second thread groove 201.

The example, connect through connecting pipe 1 between the body 5, the both ends of body 5 all can with the both sides threaded connection of connecting pipe 1, need not to adjust the direction of body 5 when using, the convenience of connecting between the body 5 has been improved, first thread groove 101 has been seted up to the inner wall of connecting pipe 1, second thread groove 201 has been seted up to interior sleeve pipe 2's inner wall, first thread post 501 and the second thread post 6 of body 5 bottom can respectively with first thread groove 101 and the mutual threaded connection of second thread groove 201, under the prerequisite that does not influence body 5 normal use, the compactness and the fastness of connecting between the body 5 have been improved.

Referring to fig. 1, 2 and 3, a first sealing washer 4 is adhered to the bottom of the inner sleeve 2, and a second sealing washer 7 is adhered to the bottom of the second threaded stud 6.

Illustratively, the tight connection between the pipe body 5 and the connecting pipe 1 can be improved by the first sealing washer 4 bonded at the bottom of the inner sleeve 2 and the second sealing washer 7 bonded at the bottom of the second threaded column 6, so that the oil body leakage in the use process is avoided.

Referring to fig. 1 and 2, an annular groove 3 is formed in the middle of the outer side wall of the connecting pipe 1.

By way of example, the annular groove 3 is formed in the middle of the outer side wall of the connecting pipe 1, so that the connecting pipe 1 can be clamped by using a tool conveniently, and then the connecting pipe 1 and the pipe body 5 are screwed tightly.

Referring to fig. 1, 2 and 3, the bottom of the second threaded post 6 is parallel to the bottom of the first threaded post 501.

As an example, the length of the second threaded post 6 is equal to the length of the first threaded post 501, so that when the pipe body 5 is connected to the connection pipe 1, the stability of the connection can be ensured.

When in use, one side of the pipe body 5 to be connected is aligned with one side of the connecting pipe 1, the inner side wall of the connecting pipe 1 is provided with a first thread groove 101, the inner sleeve 2 is fixed inside the connecting pipe 1, the inner side wall of the inner sleeve is provided with a second thread groove 201, both sides of the pipe body 5 are respectively fixed with a first thread column 501 and a second thread column 6, the first thread column 501 is aligned with the first thread groove 101, the second thread column 6 is aligned with the second thread groove 201, the middle position of the outer side wall of the connecting pipe 1 is provided with an annular groove 3, the annular groove 3 can facilitate an operator to use a tool to clamp the connecting pipe 1 and screw the connecting pipe 1, the connecting pipe 1 is rotated, the first thread column 501 and the second thread column 6 are screwed into the connecting pipe 1 and are respectively matched with the first thread groove 101 and the second thread groove 201, the connecting pipe 1 is screwed, and the connection between the connecting pipe 1 and the pipe body 5 can be fixed, the mutual matching of the first threaded column 501 and the first threaded groove 101 and the mutual matching of the second threaded column 6 and the second threaded groove 201 replace the existing single-threaded connection mode, the connection tightness and firmness are improved, another pipe body 5 to be connected is screwed into the other side of the connecting pipe 1, the pipe bodies 5 can be connected together, the existing direct connection mode between oil pipes is replaced, the direction of the oil pipes does not need to be adjusted any more, the convenience of connection between the oil pipes is improved, the first sealing washer 4 is bonded at the bottom of the second thread groove 201, the second sealing washer 7 is bonded at the bottom of the second thread column 6, when the pipe bodies 5 are connected with the connecting pipe 1, under the effect of first seal ring 4 and second seal ring 7, improved the inseparability of being connected between body 5 and the connecting pipe 1, avoided the oil body to take place the condition of leaking in transportation process.

The embodiment of the utility model provides an airtight female adapter, it is connected between to the oil jacket through connecting pipe 1, the both ends of body 5 all can with the both sides threaded connection of connecting pipe 1, need not to adjust the direction of body 5 when using, the convenience of connecting between body 5 has been improved, first thread groove 101 has been seted up to the inner wall of connecting pipe 1, second thread groove 201 has been seted up to interior sleeve pipe 2's inner wall, the first thread post 501 and the second thread post 6 of body 5 bottom can respectively with the mutual threaded connection of first thread groove 101 and second thread groove 201, under the prerequisite that does not influence body 5 normal use, the mode of current single threaded connection has been replaced, the compactness and the fastness of connecting between body 5 have been improved.

It should be noted that, the utility model relates to an airtight female adapter, including connecting pipe 1, first thread groove 101, interior sleeve pipe 2, second thread groove 201, annular groove 3, first seal ring 4, body 5, first screw thread post 501, second screw thread post 6, second seal ring 7, the part is general standard or the part that technical staff in the field knows, and its structure and principle all are that this technical staff all can learn through the technical manual or learn through conventional experimental method.

It is apparent that those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the embodiments of the present invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. The utility model provides an airtight female adapter, includes connecting pipe (1), its characterized in that, first thread groove (101) have all been seted up to connecting pipe (1) both sides inside wall, interior sleeve pipe (2) and interior sleeve pipe (2) of the inside fixedly connected with of connecting pipe (1) are two, second thread groove (201) have been seted up to interior sleeve pipe (2) inside wall, connecting pipe (1) both sides can be dismantled and are connected with body (5), the first thread post (501) of body (5) bottom fixedly connected with, first thread post (501) mutually support with first thread groove (101), the inside fixedly connected with second thread post (6) of body (5), second thread post (6) mutually support with second thread groove (201).

2. The hermetically sealed female connection according to claim 1, characterized in that a first sealing gasket (4) is bonded to the bottom of the inner sleeve (2) and a second sealing gasket (7) is bonded to the bottom of the second threaded stud (6).

3. The airtight female screw joint as claimed in claim 1, wherein the connecting pipe (1) is provided with an annular groove (3) at a middle position of the outer side wall.

4. A gas-tight female connection according to claim 1, characterized in that the bottom of said second threaded column (6) is parallel to the bottom of said first threaded column (501).