CN112610772B - Quick connector - Google Patents
Quick connector Download PDFInfo
- Publication number
- CN112610772B CN112610772B CN202011487396.9A CN202011487396A CN112610772B CN 112610772 B CN112610772 B CN 112610772B CN 202011487396 A CN202011487396 A CN 202011487396A CN 112610772 B CN112610772 B CN 112610772B
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- China
- Prior art keywords
- locking block
- cam body
- inclined surface
- generate
- pipe fitting
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
- F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The invention discloses a quick connector, which is characterized by comprising: a cam body (3) and a locking block (2); the cam body (3) is provided with a first inclined surface and a second inclined surface; the cam body (3) is driven to generate displacement so as to drive the first inclined surface or the second inclined surface to act on the locking block (2) and enable the locking block to be radially ejected or radially retracted; the radial ejection and the radial retraction are used for connecting or disconnecting a pipe fitting; the problems that the existing joint is inconvenient to connect, the connection stability is defective, the structure is complex and the like are solved.
Description
Technical Field
The invention relates to a quick connector, in particular to a connector which is used for connecting an oil pipe coupling and a steam rubber pipe when the inner wall of an oil pumping pipe is cleaned on line during oil field well workover and is used for cleaning the inner wall of the oil pumping pipe on line during oil field minor repair operation.
Background
At present, in the operation of cleaning the inner wall of an oil pumping pipe on line in an oil field, the joints used for connecting a steam pipeline and a tubing coupling are respectively common threaded joints, and the common threaded joints can be directly screwed into the tubing coupling in the threaded direction during installation; the rubber sleeve expansion type joint is fixed in the tubing coupling in a tensioning manner by compressing the middle rubber sleeve to generate radial expansion deformation.
When the common threaded connector is mounted and dismounted, the threaded part needs to be completely screwed in or out, so that the time consumption is long, and the working efficiency is low; although the installation time of the rubber tube expansion type joint is shortened to some extent, the rubber tube expansion type joint is complex in structure and large in operating force, the elasticity of the rubber tube is reduced after the rubber tube is used for a period of time, and the stability after connection cannot be guaranteed.
Disclosure of Invention
In view of this, the invention provides a quick connector, which solves the problems of inconvenient connection, connection stability, defects, complex structure and the like of the conventional connector.
In order to achieve the above object, the present invention provides a quick coupling, comprising:
a cam body and a locking block;
the cam body is provided with a first inclined surface and a second inclined surface;
the cam body is driven to displace so that the first inclined surface or the second inclined surface acts on the locking block to enable the locking block to be radially ejected or radially retracted;
the radial ejection and the radial retraction are used for connecting or disconnecting a pipe fitting.
Furthermore, the cam body takes a guide body as a displacement guide rail;
the lower part of the guide body is provided with a groove;
the locking block is fixed in the groove through a pin shaft.
Further, a sleeve is connected above the cam body;
the outer part of the sleeve is connected with an upper moving rod;
a lower moving rod is arranged outside the guide body;
a spring is arranged between the cam body and the sleeve;
shortening the distance between the upper handling rod and the lower handling rod to compress the spring to generate pretightening force and drive the cam body to generate primary displacement;
the primary displacement is used for driving the first inclined surface to act on the locking block to generate radial retraction;
the radial retraction is used for inserting the locking block into the pipe fitting or disconnecting the locking block from the pipe fitting;
releasing the pre-tightening force to drive the cam body to generate secondary displacement;
the secondary displacement is used for driving the second inclined surface to act on the locking block to generate radial ejection;
and the radial ejection is used for driving the locking block to be connected with the pipe fitting.
Further, the guide body is externally connected with a gland;
the outer part of the gland is connected with a lower moving rod;
the gland is used for limiting the depth of the locking block inserted into the pipe fitting.
Furthermore, a tooth clamping structure is arranged on the outer side of the locking block;
the clamping tooth structure is used for increasing the connecting firmness of the locking block and the pipe fitting.
Further, the number of the locking blocks is at least two.
Further, the locking blocks are symmetrically arranged relative to the cam body.
The invention has the following beneficial effects:
the quick connector provided by the invention uses the cam body part with the double-inclined-surface structure, and the first inclined surface and the second inclined surface of the cam body respectively act on the locking block by changing the displacement of the cam body, so that the locking block is opened and retracted, the installation and the disassembly of the quick connector are completed, and the problems that the existing connector is not quick to connect, is not simple and convenient to operate, has defects in connection stability and is complex in structure are solved.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:
fig. 1 is a schematic structural view of a quick coupling according to an embodiment of the present invention.
Detailed Description
The present invention will be described below based on examples, but it should be noted that the present invention is not limited to these examples. In the following detailed description of the present invention, certain specific details are set forth. However, the present invention may be fully understood by those skilled in the art for those parts not described in detail.
Furthermore, those skilled in the art will appreciate that the drawings are provided solely for the purposes of illustrating the invention, features and advantages thereof, and are not necessarily drawn to scale.
Also, unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, the meaning of "includes but is not limited to".
Fig. 1 is a schematic structural view of a quick coupling according to an embodiment of the present invention. As shown in fig. 1: the quick joint comprises a cam body 3 and a locking block 2, wherein a first inclined surface and a second inclined surface are arranged on the cam body 3, the cam body 3 is driven to generate displacement, and the purpose is to drive the first inclined surface or the second inclined surface to act on the locking block 2, so that the locking block 2 is radially ejected or radially retracted, and the locking block 2 is radially ejected and radially retracted and is used for connecting or disconnecting a pipe fitting; if the locking block 2 retracts radially, the locking block 2 can be inserted into the pipe fitting, and if the locking block 2 is driven to pop out radially continuously, the locking block 2 is connected with the pipe fitting; if the locking block 2 is disconnected with the pipe fitting, the locking block 2 is driven to retract radially, and the connection relation between the locking block 2 and the pipe fitting disappears.
The quick coupling of this embodiment has used the cam body 3 part that has double inclined plane (first inclined plane and second inclined plane) structure, produces the displacement through driving cam body 3 for the first inclined plane and the second inclined plane of cam body 3 act on latch segment 2 respectively, realize opening (radially pop out) and withdrawal (radially withdraw) of latch segment 2, thereby accomplish the installation or the dismantlement between quick coupling and the pipe fitting, it is not swift to solve current articulate, the operation is not simple and convenient, there is defect and the complicated problem of structure in the steadiness of connection.
In fig. 1, the cam body 3 uses a guide body 4 as a displacement guide rail, the lower part of the guide body 4 is provided with a groove, and the locking block 2 is fixed in the groove through a pin shaft 1.
Preferably, a sleeve 9 is connected above the cam body 3, an upper pulling rod 8 is connected outside the sleeve 9, a lower pulling rod 5 is arranged outside the guide body 4, a spring 7 is arranged between the cam body 3 and the sleeve 9, the distance between the upper pulling rod 8 and the lower pulling rod 5 is shortened to compress the spring 7 to generate a pre-tightening force and drive the cam body 3 to generate a primary displacement, and the effect of the primary displacement of the cam body 3 is to drive the first inclined surface to act on the locking block 2 to generate the radial retraction; the radial retraction can insert the locking block 2 into the tubular or be uncoupled from the quick coupling implementing the present embodiment and the tubular; the pretightening force is released to drive the cam body 3 to generate secondary displacement, the cam body 3 performs secondary displacement to drive the second inclined surface to act on the locking block 2 to generate radial ejection, the radial ejection can drive the locking block 2 to be connected with the pipe fitting, namely, the locking block 2 is connected with the inner wall of the pipe fitting in a clamping manner, and therefore connection is established between the quick connector and the pipe fitting.
In fig. 1, a gland 6 is connected to the outside of the guide body 4, a pull-down rod 5 is connected to the outside of the gland 6, and the gland 6 is used as a depth limit for inserting the locking block 2 into the pipe fitting.
Preferably, the outside of latch segment 2 sets up the card tooth structure, the card tooth structure is used for increasing the latch segment 2 with the firm degree that the pipe fitting is connected. The technical scheme that the fastening degree between the locking block 2 and the inner wall of the pipe fitting is increased by the tooth clamping structure is commonly used by those skilled in the art, and of course, other schemes in the field can be adopted to increase the fastening degree between the locking block 2 and the pipe fitting, and this embodiment is not exhaustive.
In fig. 1, the number of the locking blocks 2 is two, but the number of the locking blocks 2 may also be three, four, etc.; of course, the number of the locking blocks 2 is increased, so that the connection firmness can be increased, and it goes without saying that the number of the first inclined surfaces and the number of the second inclined surfaces on the corresponding cam bodies 3 are the same as the number of the locking blocks 2.
Preferably, the locking blocks 2 are symmetrically arranged relative to the cam bodies 3, so that the locking force between the locking blocks 2 and the pipe fitting can be uniformly distributed.
Specifically, the assembly relationship and the working process of the quick coupling of the present embodiment are described with reference to fig. 1, so as to further explain the inventive effects of the quick coupling of the present application:
first, the guide body 4 is welded to the lower portion of the gland 6, the lower moving bar 5 is welded to both sides of the gland 6, and the upper moving bar 8 is welded to both sides of the sleeve 9.
The cam body 3 is inserted into the guide body 4, the upper part of the cam body 3 is screwed with the sleeve 9, and the spring 7 is inserted between the cam body 1 and the sleeve 9.
Two locking blocks 2 are respectively connected in the grooves at two sides below the guide body 4 through pin shafts 1.
When the inner wall of the oil pipe is cleaned in the oil field workover treatment, the quick coupling of the embodiment is used for connecting a steam hose and a coupling device of a tubing coupling.
When in use, the upper end of the sleeve 9 of the quick connector is connected with the steam hose.
Then, the upper handling rod 8 and the lower handling rod 5 are held by hands, the spring 7 is compressed to generate pretightening force, simultaneously, the upper inclined surface (the first inclined surface) of the cam body 3 contacts the upper end of the locking block 2, the locking block 2 is pushed to swing around the pin shaft 1 according to the lever principle, the tooth clamping end outside the locking block 2 swings inwards, the distance between the tooth tips of the two locking blocks 2 is reduced (smaller than the diameter of the internal thread of the tubing coupling), at the moment, the quick connector is inserted into the tubing coupling until the inner end surface of the gland 6 in the quick connector contacts the upper end surface of the tubing coupling, the upper handling rod 8 and the lower handling rod 5 are loosened, under the action of the rebound of the pretightening force of the spring 7, the sleeve 9 and the cam body 3 move upwards together, the lower inclined surface (the second inclined surface) of the cam body 3 contacts with the locking block 2 and pushes the locking block 2 to swing outwards around the pin shaft 1, the distance between the tooth tips of the two locking blocks 2 is increased (equal to the diameter of the internal thread of the tubing coupling), the quick connector can be clamped at the inner thread of the tubing coupling, so that the quick connector and the tubing coupling are kept well fixed.
After the cleaning operation is finished, the upper moving rod 8 and the lower moving rod 5 are simultaneously pinched by hands, so that the cam body 3 moves downwards, the upper inclined surface (the first inclined surface) of the cam body 3 is contacted with the upper end of the locking block 2, the locking block 2 is pushed to swing around the pin shaft 1 according to the lever principle, the tooth ends of the clamping teeth on the outer side of the locking block 2 swing inwards, the distance between the tooth tips of the two locking blocks 2 is reduced (smaller than the diameter of the internal thread of the tubing coupling), at the moment, the whole quick joint can be separated from the tubing coupling, and the operation process of installing and disassembling the quick joint is finished.
In summary, the quick connection and quick disconnection of the joint can be completed by compressing and releasing the upper moving rod 8 and the lower moving rod 5, and the upper moving rod 8 and the lower moving rod 5 are only required to be pinched to insert the tubing coupling and then released when the connection is buckled up each time; the quick-operation joint of this embodiment, simple structure, easy and simple to handle, the fastness of connection is high moreover, consequently, the quick-operation joint of this application has better practicality.
The above-mentioned embodiments are merely embodiments for expressing the invention, and the description is specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, various changes, substitutions of equivalents, improvements and the like can be made without departing from the spirit of the invention, and these are all within the scope of the invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (5)
1. A quick connector, comprising:
a cam body (3) and a locking block (2);
the cam body (3) is provided with a first inclined plane and a second inclined plane;
the cam body (3) is driven to generate displacement so that the first inclined surface or the second inclined surface acts on the locking block (2) to enable the locking block to be radially ejected or radially retracted;
the radial ejection and the radial retraction are used for connecting or disconnecting a pipe fitting;
the cam body (3) takes the guide body (4) as a displacement guide rail;
the lower part of the guide body (4) is provided with a groove;
the locking block (2) is fixed in the groove through a pin shaft (1);
a sleeve (9) is connected above the cam body (3);
the outer part of the sleeve (9) is connected with an upper moving rod (8);
a lower moving rod (5) is arranged outside the guide body (4);
a spring (7) is arranged between the cam body (3) and the sleeve (9);
shortening the distance between the upper handling rod (8) and the lower handling rod (5) to compress the spring (7) to generate pretightening force and drive the cam body (3) to generate primary displacement;
the primary displacement is used for driving the first inclined surface to act on the locking block (2) to generate radial retraction;
-said radial retraction for inserting or uncoupling said locking block (2) into or from said tubular element;
releasing the pre-tightening force to drive the cam body (3) to generate secondary displacement;
the secondary displacement is used for driving the second inclined surface to act on the locking block (2) to generate radial ejection;
and the radial ejection is used for driving the locking block (2) to be connected with the pipe fitting.
2. The quick connector of claim 1, wherein:
the guide body (4) is externally connected with a gland (6);
the outer part of the gland (6) is connected with a lower moving rod (5);
the gland (6) is used for limiting the depth of the locking block (2) inserted into the pipe fitting.
3. The quick coupling according to claim 1 or 2, characterized in that:
a clamping tooth structure is arranged on the outer side of the locking block (2);
the clamping tooth structure is used for increasing the connecting firmness of the locking block (2) and the pipe fitting.
4. The quick connector of claim 3, wherein:
the number of the locking blocks (2) is at least two.
5. The quick connector of claim 4, wherein:
the locking blocks (2) are symmetrically arranged relative to the cam body (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011487396.9A CN112610772B (en) | 2020-12-16 | 2020-12-16 | Quick connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011487396.9A CN112610772B (en) | 2020-12-16 | 2020-12-16 | Quick connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112610772A CN112610772A (en) | 2021-04-06 |
| CN112610772B true CN112610772B (en) | 2022-08-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011487396.9A Active CN112610772B (en) | 2020-12-16 | 2020-12-16 | Quick connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112610772B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002077511A1 (en) * | 2001-03-27 | 2002-10-03 | Invacare Corporation | Rapid connection coupling |
| CN103162042A (en) * | 2011-12-12 | 2013-06-19 | 常州市永春机电设备有限公司 | Male connector |
| CN109312886A (en) * | 2016-05-24 | 2019-02-05 | 日东工器株式会社 | Joint member |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2270962B1 (en) * | 1974-05-14 | 1977-07-08 | Robles Joseph | |
| US5497867A (en) * | 1993-12-27 | 1996-03-12 | Eaton Corporation | Synchronizer with cone cup locater pins |
| CN2249824Y (en) * | 1994-08-17 | 1997-03-19 | 吐哈石油勘探开发会战指挥部勘探开发研究大队 | Bidirectional instrument suspender |
| CN101852244A (en) * | 2009-04-02 | 2010-10-06 | 许小明 | Rotating shaft device with positioning function |
| GB201106267D0 (en) * | 2011-04-13 | 2011-05-25 | Subsea Technologies Group Ltd | Connector |
| CN104453731B (en) * | 2013-09-13 | 2016-08-17 | 中国石油天然气集团公司 | A kind of quick connector and using method |
| CN103671421B (en) * | 2013-11-29 | 2016-02-24 | 航宇救生装备有限公司 | A kind of face shield Fixed latches |
| US10562158B1 (en) * | 2016-07-01 | 2020-02-18 | Tammy Denise Binns | Self-locking fastener system and process |
| CN208100257U (en) * | 2018-04-23 | 2018-11-16 | 中国石油集团川庆钻探工程有限公司 | A kind of fracturing pump valve seat draw-off gear |
-
2020
- 2020-12-16 CN CN202011487396.9A patent/CN112610772B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002077511A1 (en) * | 2001-03-27 | 2002-10-03 | Invacare Corporation | Rapid connection coupling |
| CN103162042A (en) * | 2011-12-12 | 2013-06-19 | 常州市永春机电设备有限公司 | Male connector |
| CN109312886A (en) * | 2016-05-24 | 2019-02-05 | 日东工器株式会社 | Joint member |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112610772A (en) | 2021-04-06 |
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