CN207795796U - Quick coupling - Google Patents
Quick coupling Download PDFInfo
- Publication number
- CN207795796U CN207795796U CN201721863124.8U CN201721863124U CN207795796U CN 207795796 U CN207795796 U CN 207795796U CN 201721863124 U CN201721863124 U CN 201721863124U CN 207795796 U CN207795796 U CN 207795796U
- Authority
- CN
- China
- Prior art keywords
- top connection
- card slot
- quick coupling
- fastener
- baffle ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model discloses a kind of quick couplings, belong to oil equipment field.The quick coupling includes：Lower contact, top connection；It is provided with fastener at the top of lower contact；Opening card slot is provided on top connection lower sides；Opening card slot can be such that fastener edge is caught in perpendicular to top connection axially direction；Quick coupling further includes：Position baffle ring, locating part；Positioning baffle ring is sleeved on the lower part of top connection using thread connecting mode, and is provided on side wall and can cross slot with the fastener of opening card slot perforation；Locating part is used for across positioning baffle ring, and is fixed in top connection；Locating part, simultaneously positioned at top connection in positioning baffle ring, under non-limit state, is integrally located in top connection under limit state.The quick coupling can mitigate the labor intensity of operating personnel, also lower contact can be effectively avoided to fall off from the opening card slot of top connection, also lower contact can be made to carry out 360 ° of rotation, to avoid the phenomenon that leading to steel wire or cable wringing because of the rotation of downhole probe from occurring.
Description
Technical field
The utility model is related to oil equipment field, more particularly to a kind of quick coupling.
Background technology
When carrying out underground work to oil gas field, first tripping in is needed to be sequentially connected with the instrument string constituted by multiple downhole instruments.
Currently, usually two neighboring downhole instrument is attached using quick coupling, to save the operating time, therefore, it is necessary to carry
For a kind of quick coupling.
The prior art provides a kind of quick coupling, which includes：Lower contact, top connection；The top of lower contact
It is provided with fastener；Opening card slot compatible with fastener is provided on the lower sides of top connection；Fastener includes：It is suitable from top to bottom
Major diameter sphere, the path cylinder of secondary connection；Opening card slot include：Major diameter spherical groove, the path column being from top to bottom sequentially connected to
Shape slot, and the length of path cylindrical groove is more than the length of path cylinder.During tripping in downhole probe, first level-one is gone into the well
Instrument is connect with lower contact, and two level downhole probe is connect with top connection；By the major diameter sphere of the fastener of lower contact be inserted perpendicularly into
In the major diameter spherical groove of top connection, lower contact is then rotated down 90 degree, and pull down lower contact, makes the path cylinder of lower contact
Body enters and axial limiting is in the path cylindrical groove of top connection, and then realizes the mesh for connecting level-one instrument with two level instrument
's.Repeat the above steps, multistage downhole probe will be contained and connect into instrument string, instrument string is integrally put into using crane later to
In lubricator.
Designer has found that the existing technology has at least the following problems：
Lower contact, top connection need to first be positioned to 90 degree, can be attached two downhole instruments, be unfavorable for quick coupling
Operation；In addition, being based on having used the quick coupling, instrument string that need to utilize crane that can be put into lubricator, increase construction
Cost.
Utility model content
The utility model embodiment provides a kind of quick coupling, to solve the above problems.The technical solution is as follows：
A kind of quick coupling, including：Lower contact, top connection；
It is provided with fastener at the top of the lower contact；
Opening card slot is provided on the lower sides of the top connection；
The opening card slot is for making the fastener edge be caught in perpendicular to the top connection axially direction；
The quick coupling further includes：Position baffle ring, locating part；
The positioning baffle ring is sleeved on the lower part of the top connection by the way of being threadedly coupled, and is arranged on side wall useful
Slot is crossed in the fastener with the opening card slot perforation；
The locating part is used for across the positioning baffle ring, and is fixed in the top connection；
The locating part is located in the top connection and the positioning baffle ring simultaneously under limit state, in non-limit state
Under, it is integrally located in the top connection.
In a kind of possible design, spanner slot is provided on the outer wall of the lower contact.
In a kind of possible design, in the lower contact setting there are two radial through-hole, two radial through-hole
Midpoint overlaps.
In a kind of possible design, the fastener includes：From top to bottom major diameter fastener connected in sequence, path fastener；
The opening card slot includes：Major diameter card slot, the path card slot from top to bottom sequentially penetrated through；
The major diameter card slot is for accommodating the major diameter fastener；
The path card slot is for accommodating the path fastener.
In a kind of possible design, the top of the top connection is provided with pilot channel；
The pilot channel includes：The axial hole axially extended from the top of the top connection；
The radial hole radially extended from the side wall of the top connection, and the radial hole is connected to the axial hole, and
Positioned at the top of the locating part.
In a kind of possible design, be provided with internal thread in the lower inner wall of the lower contact, the top connection it is upper
It is provided with external screw thread on portion's outer wall；
It is additionally provided with sealing ring in the external wall of upper portion of the top connection.
In a kind of possible design, the locating part includes：It is connected in sequence to screw bar, mounting head；
The outer diameter of the mounting head is less than or equal to the outer diameter for screwing bar, and end set has flat recess；
The bar that screws is fixed on by the way of being threadedly coupled in the top connection.
In a kind of possible design, the left end for screwing bar is provided with external screw thread, and right end can be with the positioning baffle ring
Inner wall offset；
The top connection has been disposed radially mounting hole, and the left end of the mounting hole is provided with and the outer spiral shell for screwing bar
The compatible internal thread of line；
The quick coupling further includes：Spring, the spring are contained in the mounting hole, and with the left side for screwing bar
End offsets；
When the spring in the raw when, the right part for screwing bar and it is described positioning baffle ring inner wall offset.
In a kind of possible design, the left part for screwing bar is provided with limiting slot, for being carried out to the spring
Limit.
In a kind of possible design, clearance hole, the upper/lower terminal point of the clearance hole are additionally provided in the top connection
It does not connect with the mounting hole, the opening card slot.
The advantageous effect brought of technical solution that the utility model embodiment provides is：
The quick coupling that the utility model embodiment provides is arranged so that fastener along perpendicular to upper by the card slot that will be open
The structure that connector axially direction is caught in, not only can be directly by two downhole instrument vertical connections, but also can be in lubricator
Top connects downhole instrument step by step, and goes into the well step by step, this alleviates the labor intensity of operating personnel, and does not need crane, drops
Low construction cost.By being set with positioning baffle ring threadably in the lower part of top connection, when fastener crosses slot rotation
When extremely opposite with opening card slot, the installation of lower contact can be convenient for lower contact can be prevented from top connection conversely, when not opposite
It falls off in opening card slot.In addition, by the way that finite place piece is arranged, and locating part is located at top connection and positioning simultaneously under limit state
It in baffle ring, under non-limit state, is integrally located in top connection, both rotatably positioning baffle ring makes fastener pass through fastener in this way
It crosses slot to enter in opening card slot, and positioning baffle ring can be limited, can prevent positioning baffle ring from occurring with top connection relatively sliding
It is dynamic, and then can effectively avoid lower contact and fall off from the opening card slot of top connection.
Description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the structural schematic diagram for the quick coupling that the utility model embodiment provides；
Fig. 2 is the structural schematic diagram for the top connection that the utility model embodiment provides；
Fig. 3 is diagrammatic cross-section of the top connection in the directions A-A of the utility model embodiment offer；Fig. 4 is that this practicality is new
The structural schematic diagram for the positioning baffle ring that type embodiment provides；
Fig. 5 is diagrammatic cross-section of the top connection in the directions B-B of the utility model embodiment offer.Below with regard in attached drawing
Each label illustrates：
1- lower contacts；
101- fasteners；
1011- major diameter fasteners；
1012- path fasteners；
102- spanner slots；
103- radial through-hole；
1a- bullets；
1b- columns；
2- top connections；
201- opening card slots；
2011- major diameter card slots；
2012- path card slots；
202- pilots channel；
2021- axial holes；
2022- radial holes；
203- mounting holes；
204- clearance holes；
3- positions baffle ring；
301- fasteners cross slot；
302- limit flutings；
4- locating parts；
401- screws bar；
4011- limiting slots；
402- mounting heads；
4021- flat recesses；
5- sealing rings；
6- springs.
Specific implementation mode
It is new to this practicality below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer
Type embodiment is described in further detail.
The utility model embodiment provides a kind of quick coupling, as shown in Figure 1, the quick coupling includes：Lower contact 1,
Top connection 2；The top of lower contact 1 is provided with fastener 101；Be provided on the lower sides of top connection 2 opening card slot 201 (referring to
Fig. 2, Fig. 3)；Opening card slot 201 is for making fastener 101 be caught in along perpendicular to 2 axially direction of top connection；Further, this is fast
Quick coupling further includes：Position baffle ring 3, locating part 4；Positioning baffle ring 3 is sleeved on by the way of being threadedly coupled under top connection 2
Portion, and the fastener being provided on side wall for connecting with opening card slot 201 crosses slot 301 (referring to Fig. 4)；Locating part 4 is for wearing
Positioning baffle ring 3 is crossed, and is fixed in top connection 2；Locating part 4 is under limit state simultaneously positioned at top connection 2 and positioning baffle ring 3
It is interior, under non-limit state, it is integrally located in top connection 2.
Below by taking the instrument string containing three-level downhole probe as an example, quick coupling that the utility model embodiment is provided
Operation principle, which is given, to be described：
In use, the insertion depth for being fixed on the locating part 4 in top connection 2 is first adjusted, until locating part 4 is integrally located at
In top connection 2, then rotational positioning baffle ring 3, the fastener up to positioning baffle ring 3 cross the opening card slot 201 of slot 301 and top connection 2
Connect so that the fastener 101 of lower contact 1 may pass through fastener cross slot 301 enter to opening card slot 201 in.
Level-one instrument is connect with lower contact 1 respectively, two level instrument is connect with top connection 2 respectively, another lower contact 1 connects
It connects, three-level instrument is connect with another top connection 2；Level-one instrument is put into lubricator, and hand steered lower contact 1 makes it fix
On the top of lubricator, and the fastener 101 of lower contact 1 is made to be located at the outside of lubricator；It is mobile carry two level instrument on connect
First 2, until the opening card slot 201 of top connection 2 is corresponding with the position of fastener 101 of lower contact 1, and transverse shifting top connection 2,
Until being caught in fastener 101 to opening card slot 201；Fastener is crossed the position of slot 301 and the card slot 201 that is open by rotational positioning baffle ring 3
It sets and is staggered, adjust the insertion depth of locating part 4 later, the top of locating part 4 is located to the outside of top connection 2, with to positioning
Baffle ring 3 is limited, and can prevent positioning baffle ring 3 from doing relative motion on the outer wall of top connection 2, and then can avoid 101 edge of fastener
It falls off in the radial card slot 201 from opening.
Two level instrument is transferred to lubricator, and another lower contact 1 that two level instrument tip connects is fixed, and is made
The fastener 101 of another lower contact 1 is located at the outside of lubricator, and according to the method described above carries out three-level instrument and two level instrument
Connection.Three-level instrument is transferred to lubricator later, thereby realizing will prevent under the instrument string containing three-level downhole probe
The only purpose in lubricator.
As it can be seen that the quick coupling that the utility model embodiment provides is arranged so that fastener 101 by the card slot 201 that will be open
It, not only can be directly by two downhole instrument vertical connections, Er Qieke along the structure being caught in perpendicular to 2 axially direction of top connection
Downhole instrument is connected step by step on the top of lubricator, and is gone into the well step by step, this alleviates the labor intensity of operating personnel, and is not required to
Crane is wanted, construction cost is reduced.By being set with positioning baffle ring 3 threadably in the lower part of top connection 2, work as card
Part cross slot 301 turn to opening card slot 201 it is opposite when, can be convenient for lower contact 2 installation can be prevented conversely, when not opposite
Lower contact 1 falls off from the opening card slot 201 of top connection 2.In addition, by the way that finite place piece 4 is arranged, and locating part 4 is in limit shape
It under non-limit state, is integrally located in top connection 2, can both turn in this way in top connection 2 and positioning baffle ring 3 simultaneously under state
Dynamic positioning baffle ring 3 makes fastener 101 pass through fastener and cross slot 301 to enter in opening card slot 201, but can to positioning baffle ring 3 into
Row limit can prevent positioning baffle ring 3 from occurring to slide relatively with top connection 2, and then can effectively avoid lower contact 1 from top connection 2
It falls off in opening card slot 201.
To sum up, the quick coupling that the utility model embodiment provides can mitigate the labor intensity of operating personnel, can also have
Effect avoids lower contact 1 from falling off from the opening card slot 201 of top connection 2, can also make lower contact 2 that can carry out 360 ° of lateral rotation,
So as to avoid causing to occur the phenomenon that steel wire or cable wringing due to the rotation because of downhole probe.
The above-mentioned lower contact 1 for connecting downhole instrument can be set to various structures, for example, as shown in Figure 1, this reality
With in new embodiment, which includes：From top to bottom bullet 1a connected in sequence, column 1b；Column 1b settings
There is internal thread, for being threadedly coupled with downhole probe；Bullet 1a is connect with fastener 101.
By above-mentioned setting, it is not only convenient for the fastener 101 of lower contact 1 being limited in the opening card slot 201 of top connection 2,
And convenient for lower contact 1 is dismantled from downhole instrument.
Above-mentioned bullet 1a, column 1b and fastener 101 can integrated molding, to provide the intensity of lower contact 1, in turn
The service life of quick coupling can be extended.
Further, for the ease of lower contact 1 to be threadedly coupled with downhole instrument, as shown in Figure 1, the utility model
In embodiment, spanner slot 102 is provided on the outer wall of lower contact 1.
By above-mentioned setting, the labor intensity of operating personnel can be reduced, and improve installation effectiveness.
By in top connection 2 and 1 connection procedure of lower contact, lower contact 1 should be fixed on the upper of lubricator by operating personnel
Portion, the downhole instrument that righting is connect with top connection 2 again, rotational positioning baffle ring 3, locating part 4, make the limit of locating part 4 exist again
It positions in baffle ring 3, which greatly increases the operation intensities of operating personnel, therefore, as shown in Figure 1, the utility model embodiment
In, it is also set up in lower contact 1 there are two radial through-hole 103, the midpoint of two radial through-hole 103 overlaps.
Lower contact 1 based on above structure, is put into when by downhole instrument to lubricator, when lower contact 1 is fixed,
First the lower part by lower contact 1 is inserted into lubricator, and makes two radial through-hole 103 in lower contact 1 and two on lubricator
A pin hole is corresponding, pin is then sequentially passed through the radial through-hole 103 of lower contact 1, the pin hole on lubricator, and in pin
The tail portion construction opening pin of nail, lower contact 1 is fixed on lubricator.
By above-mentioned setting, lower contact 1 is fixed on lubricator using pin and split pin, therefore by top connection
2 with 1 connection procedure of lower contact in, operating personnel can a hand steered downhole instrument just connect with top connection 2, another hand rotate
Baffle ring 3 is positioned, and adjusts the insertion depth of locating part 4, not only contributes to operate, and also mitigate operation intensity.
It is above-mentioned to can be set to various structures for mutually matched fastener 101, opening card slot 201, for example, such as Fig. 1
Shown, in the utility model embodiment, fastener 101 includes：From top to bottom major diameter fastener 1011 connected in sequence, path fastener
1012；Opening card slot 201 include：Major diameter card slot 2011, the path card slot 2012 from top to bottom sequentially penetrated through (referring to Fig. 2)；Greatly
Diameter card slot 2011 is for accommodating major diameter fastener 1011；Path card slot 2012 is for accommodating path fastener 1012.
It should be noted that the diameter of above-mentioned major diameter card slot 2011 is more than the diameter of major diameter fastener 1011, path card slot
2012 diameter is more than the diameter of path fastener 1012；And the length of major diameter fastener 1011 is less than the length of major diameter card slot 2011,
The length of path fastener 1012 is more than the length of path card slot 2012.
By above-mentioned setting, it can not only make fastener 101 that can laterally be caught in opening card slot 201, and also allow for producing
Processing.
After waiting for that instrument string is gone into the well, for the ease of obtaining underground working, the bottom and the top of top connection 2 of downhole instrument connect
It is logical, and the bottom of the downhole instrument is equipped with pressure probe, which can obtain borehole pressure, and is transferred to well head and sets
It is standby.In order to ensure the normal work of pressure probe, as shown in Figure 1, in the utility model embodiment, the top of top connection 2 is arranged
There is pilot channel 202, including：The axial hole 2021 axially extended from the top of top connection 2；From the side wall of top connection 2 along diameter
To radially extending hole 2022, and radial hole 2022 is connected to axial hole 2021, and positioned at the top of locating part 4.Pass through setting
Above-mentioned pilot channel 202 can make borehole pressure equal with the internal pressure of top connection 2, and then can make to connect with the top of top connection 2
The pressure probe of logical downhole instrument obtains down-hole pressure.
For the ease of installing, dismantling lower contact 1, top connection 2, the lower inner wall of lower contact 1 in the utility model embodiment
On be provided with internal thread, the external wall of upper portion of top connection 2 is provided with external screw thread, and lower contact 1 can be made to be threadedly coupled with downhole instrument, on
Connector 2 is threadedly coupled with another downhole instrument.
Transferred in instrument string or during above carry, it may appear that downhole instrument with quick coupling there is a phenomenon where threading off, in order to
The generation of this case is avoided to be additionally provided in the external wall of upper portion of top connection 2 close as shown in Figure 1, in the utility model embodiment
Seal 5.By the way that sealing ring 5 is arranged, the resistance between thread can be increased, with anti-tripping.
Above-mentioned sealing ring 5 may be configured as rubber seal, and Pasting is on the outer wall of top connection 2.
It is above-mentioned to be both used to be fixed in top connection 2, and the adjustable locating part of insertion depth 4 can be set to various structures, lift
For example, as described in Figure 1, locating part 4 includes：It is connected in sequence to screw bar 401, mounting head 402；The outer diameter of mounting head 402 is small
In or equal to screwing the outer diameter of bar 401, and end set has flat recess 4021；Bar 401 is screwed by the way of being threadedly coupled to consolidate
It is scheduled in top connection 2.
It is understood that passing through positioning baffle ring 3, positioning baffle ring 3 to be disposed radially limit hole for the ease of locating part 4
Or limit straight slot, and the limit hole or outer diameter of the aperture more than mounting head 402 for limiting straight slot, so that mounting head 402 can be located at
In limit hole or limit straight slot, and then realize the limit purpose to positioning baffle ring 3.For example, as shown in figure 4, this practicality is new
In type embodiment, the top of positioning baffle ring 3 is provided with limit fluting 302.
The above-mentioned bar 401 that screws can be that screw rod is accordingly provided with screw thread compatible with screw flight in top connection 2
Hole.
So, in use, to rotational positioning baffle ring 3, installation tool can be first inserted into the flat recess of mounting head 402
In 4021, it is rotatablely installed tool, drive screws the precession into the threaded hole of top connection 2 of bar 401, until by the whole rotation of locating part 4
It proceeds in threaded hole, positioning baffle ring 3 can be turned to predeterminated position later；If desired locating part 4 carries out positioning baffle ring 3
When limit, it will screw bar 401 using above-mentioned installation tool and screw out, and until mounting head 402 is located at the outside of threaded hole, be located at positioning
In baffle ring 3, it can make positioning baffle ring 3 is not opposite with top connection 2 to slide.
Alternatively, as shown in Figure 1, the above-mentioned left end for screwing bar 401 is provided with external screw thread, right end can in positioning baffle ring 3
Wall offsets；Top connection 2 has been disposed radially mounting hole 203 (referring to Fig. 5), is provided with and revolves on the left end inner wall of mounting hole 203
The compatible internal thread of external screw thread of tight bar 401；Quick coupling further includes：Spring 6, spring 6 are contained in mounting hole 203, and
It offsets with the left part for screwing bar 401；When spring 6 in the raw when, screw 401 right part of bar and position baffle ring 3 it is interior
Wall offsets.
So, to rotational positioning baffle ring 3, first installation tool can be inserted into the flat recess 4021 of mounting head 402, turned
Dynamic installation tool, drive screw the precession into the mounting hole 203 of top connection 2 of bar 401, until the whole precession of locating part 4 is extremely pacified
Fill hole 203 in, and with the threaded connection of mounting hole 203, later can will positioning baffle ring 3 turn to predeterminated position；If desired will
When locating part 4 limits positioning baffle ring 3, it will screw bar 401 using above-mentioned installation tool and screw out outward, until screwing bar
401 are located at the right side of the screw thread of mounting hole 203, and spring 6 will screw 401 outside bullet of bar later, until screwing the right part of bar 401
It offsets with the inner wall of positioning baffle ring 3, mounting head 402 is located at the outside of mounting hole 203 at this time, is located in positioning baffle ring 3, and it is fixed to make
Position baffle ring 3 is fixed on the outer wall of top connection 2, is slided without opposite with top connection 2.
By above-mentioned setting, convenient for adjusting the insertion depth of locating part 4, and for the ease of producing and processing quick coupling, example
Such as only it can screw bar 401 above-mentioned, be both provided with the circle screw thread of 2 circles~3 on mounting hole 203.
In order to effectively be sprung back spring 6 to locating part 4, as shown in Figure 1, in the utility model embodiment, bar is screwed
401 left part is provided with limiting slot 4011, for being limited to spring 6.
By above-mentioned setting, spring 6 can be prevented when being sprung back to locating part 4, swung up and down.
In order to ensure spring 6 works normally in mounting hole 203, prevent oil-sand in pit shaft from entering mounting hole, as shown in Figure 1, Figure 2
It is shown, in the utility model embodiment, also set up clearance hole 204 in top connection 2, the upper/lower terminal of clearance hole 204 respectively with it is solid
Determine hole 203, opening card slot 201 connects, the product sand being convenient to clean in mounting hole 203.
The quick coupling that the utility model embodiment provides can also be used for connecting tool string of going into the well.
The alternative embodiment that any combination forms the disclosure may be used, herein no longer in above-mentioned all optional technical solutions
It repeats one by one.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all in this practicality
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (10)
1. a kind of quick coupling, including：Lower contact (1), top connection (2)；
It is provided with fastener (101) at the top of the lower contact (1)；
Opening card slot (201) is provided on the lower sides of the top connection (2)；
It is characterized in that, the opening card slot (201) is for making the fastener (101) along axial perpendicular to the top connection (2)
Direction be caught in；
The quick coupling further includes：Position baffle ring (3), locating part (4)；
The positioning baffle ring (3) is sleeved on the lower part of the top connection (2) by the way of being threadedly coupled, and is provided on side wall
Fastener for being penetrated through with the opening card slot (201) crosses slot (301)；
The locating part (4) is used for across the positioning baffle ring (3), and is fixed in the top connection (2)；
The locating part (4) is interior positioned at the top connection (2) and the positioning baffle ring (3) simultaneously under limit state, in non-limit
Under the state of position, it is integrally located in the top connection (2).
2. quick coupling according to claim 1, which is characterized in that be provided with spanner on the outer wall of the lower contact (1)
Slot (102).
3. quick coupling according to claim 1, which is characterized in that there are two radial logical for setting on the lower contact (1)
Hole (103)；
The midpoint of two radial through-hole (103) overlaps.
4. quick coupling according to claim 1, which is characterized in that the fastener (101) includes：From top to bottom sequentially connect
Major diameter fastener (1011), the path fastener (1012) connect；
The opening card slot (201) includes：Major diameter card slot (2011), the path card slot (2012) from top to bottom sequentially penetrated through；
The major diameter card slot (2011) is for accommodating the major diameter fastener (1011)；
The path card slot (2012) is for accommodating the path fastener (1012).
5. quick coupling according to claim 1, which is characterized in that it is logical that the top of the top connection (2) is provided with pilot
Road (202)；
The pilot channel (202) includes：The axial hole (2021) axially extended from the top of the top connection (2)；
The radial hole (2022) radially extended from the side wall of the top connection (2), and the radial hole (2022) and the axis
It is connected to hole (2021), and positioned at the top of the locating part (4).
6. quick coupling according to claim 1, which is characterized in that be provided in the lower inner wall of the lower contact (1)
Internal thread is provided with external screw thread in the external wall of upper portion of the top connection (2)；
It is additionally provided with sealing ring (5) in the external wall of upper portion of the top connection (2).
7. quick coupling according to claim 1, which is characterized in that the locating part (4) includes：It is connected in sequence to screw
Bar (401), mounting head (402)；
The outer diameter of the mounting head (402) is less than or equal to the outer diameter for screwing bar (401), and end set has flat recess
(4021)；
The bar (401) that screws is fixed on by the way of being threadedly coupled in the top connection (2).
8. quick coupling according to claim 7, which is characterized in that the left end for screwing bar (401) is provided with outer spiral shell
Line, right end can offset with the inner wall of the positioning baffle ring (3)；
The top connection (2) has been disposed radially mounting hole (203), and the left end of the mounting hole (203) is provided with and the rotation
The compatible internal thread of external screw thread of tight bar (401)；
The quick coupling further includes：Spring (6), the spring (6) are contained in the mounting hole (203), and with the rotation
The left end of tight bar (401) offsets；
When the spring (6) in the raw when, the right part for screwing bar (401) with it is described positioning baffle ring (3) it is interior
Wall offsets.
9. quick coupling according to claim 8, which is characterized in that the left part setting for screwing bar (401) is limited
Position slot (4011), for being limited to the spring (6).
10. quick coupling according to claim 8, which is characterized in that be additionally provided with clearance hole on the top connection (2)
(204), the upper/lower terminal of the clearance hole (204) is mutually passed through with the mounting hole (203), the opening card slot (201) respectively
It is logical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721863124.8U CN207795796U (en) | 2017-12-27 | 2017-12-27 | Quick coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721863124.8U CN207795796U (en) | 2017-12-27 | 2017-12-27 | Quick coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207795796U true CN207795796U (en) | 2018-08-31 |
Family
ID=63279278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721863124.8U Active CN207795796U (en) | 2017-12-27 | 2017-12-27 | Quick coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207795796U (en) |
-
2017
- 2017-12-27 CN CN201721863124.8U patent/CN207795796U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103352672A (en) | Turbine vibration drag reduction device for penetrating cable during coiled tubing well drilling | |
| CN207795796U (en) | Quick coupling | |
| CN204027829U (en) | A kind of split type borescope plug | |
| CN107237805A (en) | A kind of bolt | |
| CN208374360U (en) | A kind of ship gear-box foundation bolt reaming device | |
| CN214118085U (en) | Rock core drill bit for solid mineral exploration | |
| CN206554816U (en) | A kind of colliery quick release and the drilling rod being connected | |
| CN105370221B (en) | A kind of drilling rod quick-connect machanism | |
| CN207776781U (en) | A kind of preload adjustable formula torque controller | |
| CN209054214U (en) | A kind of Double entry middle-opening pump pump housing | |
| CN201786342U (en) | High-precision oriented perforator | |
| CN109719677A (en) | A kind of skeleton dismantling device with brill instrument | |
| CN115450606A (en) | Coal mine underground composite power supply full-working-condition multi-parameter measurement-while-drilling system and method | |
| CN204877309U (en) | Piece and adjustable rigidity righting device are right to rigidity | |
| CN208203162U (en) | centralizer | |
| CN207420479U (en) | Geological casing pipe | |
| CN101824978B (en) | High accuracy oriented perforator | |
| CN207144839U (en) | A kind of tunnel rig short drill pipe | |
| CN109184584A (en) | Driver is mostly used hole head | |
| CN207420475U (en) | Geologic drilling rod box cupling | |
| CN111852335A (en) | Multi-branch yield tool pipe internal guiding tool | |
| CN209523180U (en) | A kind of prospecting device | |
| CN204357921U (en) | A kind of coupling shaft of coal mine gallery drilling rig gas extraction blower | |
| CN213869717U (en) | Small-diameter directional drilling tool for underground coal mine | |
| CN205000910U (en) | But nearly drill bit righting device of reducing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |