CN211258526U - Variable-diameter coupling - Google Patents
Variable-diameter coupling Download PDFInfo
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- CN211258526U CN211258526U CN201922000360.2U CN201922000360U CN211258526U CN 211258526 U CN211258526 U CN 211258526U CN 201922000360 U CN201922000360 U CN 201922000360U CN 211258526 U CN211258526 U CN 211258526U
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Abstract
The embodiment of the utility model discloses but reducing coupling, concretely relates to coupling technical field, including fixed shell, inside one side of fixed shell is provided with the fly leaf, the inside opposite side of fixed shell is provided with the arc, inner wall one side of fly leaf is provided with trapezoidal plate, trapezoidal plate and fly leaf fixed connection, the outside of fly leaf is provided with the movable rod, the bottom and the fly leaf fixed connection of movable rod, the top of movable rod is provided with the baffler, the outside of movable rod is provided with supporting spring. The utility model discloses an outwards extrude trapezoidal plate for the fly leaf can remove towards fixed shell direction, and then makes the movable rod outwards remove, makes the outside compression of supporting spring, and then after oil pipe has installed, the fly leaf inwards removes under supporting spring's effect, makes the fly leaf can inseparable with oil pipe contact, makes one side of coupling can adapt to not unidimensional oil pipe's installation.
Description
Technical Field
The embodiment of the utility model provides a relate to coupling technical field, concretely relates to but reducing coupling.
Background
The tubing coupling is one of oilfield drilling tools, is mainly used for connecting tubing, has the characteristic of relieving stress concentration of the root part of the external thread of the single-cone threaded connection tubing, is not easy to generate fatigue fracture, has good connection effect, and effectively prevents the occurrence of the breaking-off accident of the tubing string of the oil well.
The defects in the prior art are as follows: the common size of the existing coupling is fixed, the coupling can only be used for connecting oil pipes with fixed sizes, and when the coupling is used for connecting oil pipes with different sizes, different couplings need to be replaced, so that the time for connecting the oil pipes is prolonged, the efficiency for connecting the oil pipes is lowered, and the efficiency for drilling the oil field is lowered.
SUMMERY OF THE UTILITY MODEL
Therefore, the embodiment of the utility model provides a but variable diameter coupling through outside extrusion trapezoidal plate, and then makes the fly leaf remove towards fixed shell direction, and then makes the movable rod outwards remove, makes supporting spring outwards compress, and then when oil pipe installation back, the fly leaf inwards removes under supporting spring's effect, makes the fly leaf can be inseparable with oil pipe contact, makes one side of coupling can adapt to not unidimensional oil pipe's installation, with the problem of solving among the prior art because leading to.
In order to achieve the above object, the embodiment of the present invention provides the following technical solutions: the utility model provides a but reducing coupling, includes fixed shell, inside one side of fixed shell is provided with the fly leaf, the inside opposite side of fixed shell is provided with the arc, inner wall one side of fly leaf is provided with trapezoidal plate, trapezoidal plate and fly leaf fixed connection, the outside of fly leaf is provided with the movable rod, the bottom and the fly leaf fixed connection of movable rod, the top of movable rod is provided with the baffler, the outside of movable rod is provided with supporting spring.
Further, the inside of arc is provided with the arc pole, the outside of arc pole is provided with the limited spring, the both ends and the arc fixed connection of limited spring.
Furthermore, limiting plates are arranged at two ends of the arc-shaped rod and fixedly connected with the arc-shaped rod, and the limiting plates are matched with the inner wall of the arc-shaped plate.
Furthermore, the inner wall of the fixed shell is provided with a movable groove, one side of the arc-shaped plate, which is close to the movable plate, is provided with a sliding block, and the sliding block is movably connected with the movable groove.
Furthermore, the bottom end of the supporting spring is fixedly connected with the movable plate, and the top end of the supporting spring is fixedly connected with the inner wall of the fixed shell.
Furthermore, the arc-shaped rod is movably inserted into the arc-shaped plate, and the outer wall of the arc-shaped rod is a smooth surface.
Furthermore, the movable plate is made of hard alloy materials, and the trapezoidal plate is made of soft plastics.
Further, the slider is fixedly connected with the arc-shaped plate, and the slider is made of smooth aluminum alloy materials.
The embodiment of the utility model provides a have following advantage:
1. the utility model discloses an outwards extrude trapezoidal plate, and then make the fly leaf move towards fixed shell direction, and then make the movable rod outwards move, make supporting spring outwards compress, and then after oil pipe is installed, the fly leaf moves inwards under supporting spring's effect, makes the fly leaf can be inseparable with oil pipe contact, makes one side of coupling can adapt to the installation of the oil pipe of different sizes, makes the coupling can be inseparable with oil pipe and is connected;
2. the utility model discloses an outwards extrude the arc for the inside arc pole of arc can outwards extend, and then make the arc outwards expand, make the arc can adjust the open-ended size, under the effect of injecing the spring, can injecing the opening degree of arc, in the extension of arc, the arc can remove in the activity inslot through the slider, make the activity between arc and the fixed shell more convenient, make the joint department of coupling can be fine adapt to not unidimensional oil pipe's connection.
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 description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
Fig. 1 is a schematic view of an overall structure of a variable-diameter coupling provided in embodiment 1 of the present invention;
fig. 2 is an enlarged view of a portion a of a variable-diameter coupling provided in embodiment 2 of the present invention;
fig. 3 is a left side view of a variable-diameter coupling provided in embodiment 3 of the present invention;
fig. 4 is a right side view of a variable-diameter coupling provided in embodiment 4 of the present invention;
fig. 5 is an enlarged view of a part B structure of a variable-diameter coupling provided in embodiment 5 of the present invention;
fig. 6 is an enlarged view of a C-portion structure of a variable-diameter coupling according to embodiment 6 of the present invention.
In the figure: the device comprises a fixed shell 1, a movable plate 2, an arc-shaped plate 3, a trapezoidal plate 4, a movable rod 5, a blocking plate 6, a supporting spring 7, an arc-shaped rod 8, a limiting plate 9, a limiting spring 10, a movable groove 11 and a sliding block 12.
Detailed Description
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. 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.
Referring to the attached drawings 1-3 in the specification, the variable diameter coupling of the embodiment comprises a fixed shell 1, a movable plate 2 is arranged on one side inside the fixed shell 1, an arc-shaped plate 3 is arranged on the other side inside the fixed shell 1, a trapezoidal plate 4 is arranged on one side of the inner wall of the movable plate 2, the trapezoidal plate 4 is fixedly connected with the movable plate 2, a movable rod 5 is arranged on the outer side of the movable plate 2, the bottom end of the movable rod 5 is fixedly connected with the movable plate 2, a blocking plate 6 is arranged at the top end of the movable rod 5, and a supporting spring 7 is arranged on the outer side of the movable rod 5.
The bottom end of the supporting spring 7 is fixedly connected with the movable plate 2, the top end of the supporting spring 7 is fixedly connected with the inner wall of the fixed shell 1, and the supporting spring 7 can connect and limit the movable plate 2.
The movable plate 2 is made of hard alloy materials, the trapezoidal plates 4 are made of soft plastics, the trapezoidal plates 4 enable the oil pipes to be mounted and can better push the movable plate 2 to move, and the movable plate 2 can be better adapted to connection of the oil pipes with different sizes.
Further, referring to the attached drawings 1 and fig. 4 to 6 of the specification, an arc rod 8 is arranged inside the arc plate 3, a limiting spring 10 is arranged outside the arc rod 8, two ends of the limiting spring 10 are fixedly connected with the arc plate 3, the limiting spring 10 can limit the opening degree of the arc plate 3, and the arc plate 3 can be prevented from being too large in opening.
Limiting plates 9 are arranged at two ends of the arc-shaped rod 8, the limiting plates 9 are fixedly connected with the arc-shaped rod 8, the limiting plates 9 are matched with the inner wall of the arc-shaped plate 3, the limiting plates 9 can limit the expansion degree of the arc-shaped rod 8, the arc-shaped rod 8 can be prevented from falling off from the inside of the arc-shaped plate 3, and the arc-shaped plate 3 can be prevented from being damaged due to too large opening.
The inner wall of fixed shell 1 is provided with movable slot 11, one side that arc 3 is close to fly leaf 2 is provided with slider 12, slider 12 and movable slot 11 swing joint, arc 3 can slide in movable slot 11 inside through slider 12 for swing joint between arc 3 and the fixed shell 1 is more convenient, makes arc 3 can carry out open-ended regulation well.
The implementation scenario is specifically as follows: through outwards extruding trapezoidal plate 4, and then make fly leaf 2 can remove towards fixed housing 1 direction, and then make the movable rod 5 outwards remove for supporting spring 7 outwards compresses, and then after oil pipe has been installed, fly leaf 2 inwards removes under supporting spring 7's effect, makes fly leaf 2 can be inseparable with oil pipe contact, makes one side of coupling can adapt to the installation of not unidimensional oil pipe, makes the coupling can be connected with oil pipe inseparable.
Further, through outwards extruding arc 3, make the inside arc 8 of arc 3 can outwards extend, and then make arc 3 outwards expand, make arc 3 can adjust open-ended size, under the effect of injecing spring 10, can injecing the opening degree of arc 3, in the extension of arc 3, arc 3 can remove in activity groove 11 through slider 12, make the activity between arc 3 and the fixed shell 1 more convenient, make the joint department of coupling can be fine adapt to the connection of unidimensional oil pipe.
The working principle is as follows: referring to the attached drawings 1-3 in the specification, the trapezoidal plate 4 is pressed outwards, so that the movable plate 2 can move towards the fixed shell 1, the movable rod 5 moves outwards, the supporting spring 7 compresses outwards, and after the oil pipe is installed, the movable plate 2 moves inwards under the action of the supporting spring 7, so that the movable plate 2 can be in close contact with the oil pipe.
Further, referring to the attached drawings 1 and fig. 4 to 6 of the specification, the arc-shaped plate 3 is extruded outwards, so that the arc-shaped rod 8 inside the arc-shaped plate 3 can extend outwards, the arc-shaped plate 3 is expanded outwards, the size of the opening of the arc-shaped plate 3 can be adjusted, the opening degree of the arc-shaped plate 3 can be limited under the action of the limiting spring 10, and the arc-shaped plate 3 can move in the movable groove 11 through the sliding block 12 while the arc-shaped plate 3 is expanded.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (8)
1. A variable diameter coupling comprises a fixed housing (1), and is characterized in that: the utility model discloses a fixed casing, including fixed shell (1), inside one side of fixed shell (1) is provided with fly leaf (2), the inside opposite side of fixed shell (1) is provided with arc (3), inner wall one side of fly leaf (2) is provided with trapezoidal plate (4), trapezoidal plate (4) and fly leaf (2) fixed connection, the outside of fly leaf (2) is provided with movable rod (5), the bottom and fly leaf (2) fixed connection of movable rod (5), the top of movable rod (5) is provided with baffler (6), the outside of movable rod (5) is provided with supporting spring (7).
2. The variable diameter coupling of claim 1, wherein: the inside of arc (3) is provided with arc pole (8), the outside of arc pole (8) is provided with limits spring (10), the both ends and the arc (3) fixed connection of limiting spring (10).
3. A variable diameter coupling according to claim 2, wherein: limiting plates (9) are arranged at two ends of the arc-shaped rod (8), the limiting plates (9) are fixedly connected with the arc-shaped rod (8), and the limiting plates (9) are matched with the inner wall of the arc-shaped plate (3).
4. The variable diameter coupling of claim 1, wherein: the inner wall of the fixed shell (1) is provided with a movable groove (11), one side of the arc-shaped plate (3) close to the movable plate (2) is provided with a sliding block (12), and the sliding block (12) is movably connected with the movable groove (11).
5. The variable diameter coupling of claim 1, wherein: the bottom end of the supporting spring (7) is fixedly connected with the movable plate (2), and the top end of the supporting spring (7) is fixedly connected with the inner wall of the fixed shell (1).
6. A variable diameter coupling according to claim 2, wherein: the arc-shaped rod (8) is movably inserted into the arc-shaped plate (3), and the outer wall of the arc-shaped rod (8) is a smooth surface.
7. The variable diameter coupling of claim 1, wherein: the movable plate (2) is made of hard alloy materials, and the trapezoidal plate (4) is made of soft plastics.
8. The variable diameter coupling of claim 4, wherein: the sliding block (12) is fixedly connected with the arc-shaped plate (3), and the sliding block (12) is made of smooth aluminum alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922000360.2U CN211258526U (en) | 2019-11-19 | 2019-11-19 | Variable-diameter coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922000360.2U CN211258526U (en) | 2019-11-19 | 2019-11-19 | Variable-diameter coupling |
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| Publication Number | Publication Date |
|---|---|
| CN211258526U true CN211258526U (en) | 2020-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922000360.2U Active CN211258526U (en) | 2019-11-19 | 2019-11-19 | Variable-diameter coupling |
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| CN (1) | CN211258526U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114484102A (en) * | 2022-04-14 | 2022-05-13 | 东营汇阅信息科技有限公司 | Reducing oil pipe coupling |
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2019
- 2019-11-19 CN CN201922000360.2U patent/CN211258526U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114484102A (en) * | 2022-04-14 | 2022-05-13 | 东营汇阅信息科技有限公司 | Reducing oil pipe coupling |
| CN114484102B (en) * | 2022-04-14 | 2022-09-23 | 东营市科创石油装备有限公司 | Reducing oil pipe coupling |
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