CN207686621U - Attachment device and tubing nipple for non-stick direct type composite continuous oil pipe - Google Patents
Attachment device and tubing nipple for non-stick direct type composite continuous oil pipe Download PDFInfo
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- CN207686621U CN207686621U CN201721777740.1U CN201721777740U CN207686621U CN 207686621 U CN207686621 U CN 207686621U CN 201721777740 U CN201721777740 U CN 201721777740U CN 207686621 U CN207686621 U CN 207686621U
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- inner tube
- cable
- pillar
- core pipe
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Abstract
The utility model provides a kind of attachment device and tubing nipple for non-stick direct type composite continuous oil pipe, and non-stick direct type composite continuous oil pipe includes core pipe and the pillar that is set in outside it, and cable is folded between core pipe and pillar；Attachment device includes：The inner tube that energy core tube feeding is arranged, outer wall outwardly convex of the inner tube close to upper end are formed with peripheral flange, the first perforation are provided in peripheral flange；It is set in the outer tube that inner tube is outer and is connected with peripheral flange, ring cavity is formed between outer tube and inner tube, ring cavity is connected with the first perforation, the inwardly protruding formation spacing ring of inner wall of outer tube, is arranged on spacing ring fluted；When core pipe is set in outside inner tube, the inner wall of outer tube and the outer wall of pillar fit, and limiting through hole is formed between groove and the outer wall of inner tube, and limiting through hole is worn for cable, and cable is extend out to through the first perforation outside ring cavity.The attachment device of the utility model realizes the sealing and protection to cable while connecting non-stick direct type composite continuous oil pipe.
Description
Technical field
The utility model is related to Rodless oil extraction equipment technical field, more particularly to one kind are compound continuous for non-stick direct type
The attachment device and tubing nipple of oil pipe.
Background technology
The description of this part is only provided discloses relevant background information with the utility model, without constituting the prior art.
It is promoted and answers because there is greater advantage in energy-saving square face compared to having bar oil recovery technique, Rodless oil extraction technology
With.
However, Rodless oil extraction technology locks into the influence of oily in-tube fouling or wax deposition, average pump detection period is unable to get
Effectively extend.To solve the above problems, Rodless oil extraction technology introduces coiled tubing made of composite material, (abbreviation is compound continuous
Oil pipe).The inner surface of composite continuous oil pipe is relatively smooth, can effectively prevent fouling and wax deposition, and power cable and signal cable
It can be laid in composite continuous oil pipe, avoid the process in oil pipe outer surface fixed cable in conventional oil pipe operation, substantially carry
Rise operating efficiency.
According to tube-making process, composite continuous oil pipe can be divided into two kinds at present, first, adhesion type multiple tube, on cross section
Each layer is all bonded as one, and cannot slide between layers；Second is that non-stick direct type multiple tube, each layer on cross section
All can Relative sliding, advantage be can get smaller bending radius.
However, how while connecting non-stick direct type composite continuous oil pipe, realizes the sealing and protection to cable, be urgently
Technical problem to be solved.
It should be noted that being intended merely to above to the introduction of technical background convenient clear to the technical solution of the utility model progress
Chu, complete explanation, and facilitate the understanding of those skilled in the art and illustrate.Cannot merely because these schemes in this practicality
Novel background technology part is expounded and thinks that above-mentioned technical proposal is known to those skilled in the art.
Utility model content
Based on prior art defect above-mentioned, a kind of connection for non-stick direct type composite continuous oil pipe of the utility model fills
It sets and tubing nipple, can realize the sealing and protection to cable while connecting non-stick direct type composite continuous oil pipe.
To achieve the goals above, the utility model provides the following technical solution.
A kind of attachment device for non-stick direct type composite continuous oil pipe, the non-stick direct type composite continuous oil pipe includes core
The pillar outside the core pipe is managed and be set in, cable is folded between the core pipe and the pillar；The attachment device packet
It includes：
It can be formed with peripheral flange for the inner tube that the core pipe is arranged, outer wall outwardly convex of the said inner tube close to upper end,
The first perforation is provided in the peripheral flange；
It is set in the outer tube that said inner tube is outer and is connected with the peripheral flange, shape between the outer tube and said inner tube
At there is ring cavity, the ring cavity is perforated with described first to be connected, the inwardly protruding formation spacing ring of inner wall of the outer tube, the limit
It is arranged on the ring of position fluted；
When the core pipe is set in outside said inner tube, the inner wall of the outer tube and the outer wall of the pillar fit, institute
It states and forms limiting through hole between groove and the outer wall of said inner tube, the limiting through hole is worn for the cable, the cable warp
First perforation is extend out to outside the ring cavity.
Preferably, the outer wall outwardly convex of said inner tube is formed with multiple first steps being axially distributed along it, and described
One step has the first mount surface towards the peripheral flange.
Preferably, the inner wall of the outer tube is inwardly protruding is formed with multiple second steps being axially distributed along it, and described
Two steps have the second mount surface towards the peripheral flange.
Preferably, fixed ring, shape between the inner wall of the fixed ring and the outer wall of said inner tube are arranged with outside said inner tube
At there is gap；
The non-stick direct type composite continuous oil pipe further includes being folded between the core pipe and the pillar and positioned at described
The upper end of the core pipe and the pillar is stretched out in tensile layer on the outside of cable, the upper end of the tensile layer；When the core pipe set
When being located at outside said inner tube, the upper end of the tensile layer across the gap and is pressed together on the pillar and the outer tube,
The cable passes through the gap.
Preferably, the outer wall outwardly convex of said inner tube forms two spaced limit shoulders, when the core pipe set
When being located at outside said inner tube, the spacing ring is embedded between two limit shoulders, the groove and two limiting stands
The limiting through hole is formed between shoulder.
Preferably, further include connector, outer wall of the connector close to lower end extends outward to form interconnecting piece, the company
Socket part is connected with the peripheral flange, and the second perforation is provided on the interconnecting piece, and second perforation is worn with described first
Hole is connected.
A kind of tubing nipple, including：
Non-stick direct type composite continuous oil pipe comprising：Core pipe and the pillar being set in outside the core pipe, the core pipe and
It is folded with cable between the pillar；
Attachment device as described in any one above-mentioned embodiment, the core pipe are set in outside said inner tube, described outer
The inner wall of pipe and the outer wall of the pillar fit, and limiting through hole is formed between the groove and the outer wall of said inner tube, described
Limiting through hole is worn for the cable, and the cable is extend out to through first perforation outside the ring cavity.
Preferably, the core pipe is made of flexible material；The outer wall outwardly convex of said inner tube is formed with multiple along it
The first step being axially distributed, the first step have the first mount surface towards the peripheral flange.
Preferably, the pillar is made of flexible material；The inner wall of the outer tube is inwardly protruding be formed with it is multiple along it
The second step being axially distributed, the second step have the second mount surface towards the peripheral flange.
Preferably, fixed ring, shape between the inner wall of the fixed ring and the outer wall of said inner tube are arranged with outside said inner tube
At there is gap；
The non-stick direct type composite continuous oil pipe further include be folded in tensile layer between the core pipe and the pillar, and
The core pipe and the shield are stretched out in the upper end of the fixed bed being folded between the tensile layer and the core pipe, the tensile layer
The upper end of pipe, the cable are arranged in the fixed bed, and the cable is coated with oil resistant insulating layer；The tensile layer passes through
The gap is simultaneously pressed together between the spacing ring and the outer tube, and the cable passes through the gap.
By above technical solution, the attachment device of the utility model embodiment and formed using the attachment device
Tubing nipple, by being formed between the inner and outer pipe sections for accommodating the cable being arranged in non-stick direct type composite continuous oil pipe
Ring cavity, and the first perforation being pierced by for cable is set by being formed in inner tube in the peripheral flange on the outer wall of upper end,
To realize the connection to non-stick direct type composite continuous oil pipe simultaneously, preferably realizes the receiving and sealing to cable, protect
Cable.
Other application field will become apparent according to the description provided herein.The description of the utility model content and tool
Body example is only intended to the purpose illustrated, it is not intended that limitation the scope of the utility model.
Description of the drawings
Attached drawing described here is only used for task of explanation, and is not intended to limit in any way disclosed by the utility model
Range.In addition, the shape and proportional sizes etc. of each component in figure are only schematical, it is used to help the reason to the utility model
Solution is not the specific shape and proportional sizes for limiting each component of the utility model.Those skilled in the art is new in this practicality
Under the introduction of type, various possible shapes and proportional sizes can be selected to implement the utility model as the case may be.Attached
In figure：
Fig. 1 is the schematic cross-section of non-stick direct type composite continuous oil pipe；
Fig. 2 is the stereogram of the attachment device of the utility model embodiment；
Fig. 3 is the sectional view of the attachment device of the utility model embodiment；
Fig. 4 is the sectional view of the tubing nipple of the utility model embodiment；
Fig. 5 is the structural schematic diagram of section B-B in Fig. 3；
Fig. 6 is the structural schematic diagram in the sections C-C in Fig. 3.
Specific implementation mode
It should be noted that when a parts are referred to as " being set to " another parts, it can be directly another
On a parts or there may also be parts placed in the middle.When a parts are considered as " connection " another parts,
It can be directly to another parts or may be simultaneously present parts placed in the middle.Term as used herein " is hung down
Directly ", "horizontal", "left", "right" and similar statement are for illustrative purposes based on Figure of description, are not offered as being only
One embodiment.
Unless otherwise defined, all of technologies and scientific terms used here by the article is led with the technology for belonging to the utility model
The normally understood meaning of technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term as used herein "and/or" packet
Include any and all combinations of one or more relevant Listed Items.
The utility model provides a kind of attachment device 200 for non-stick direct type composite continuous oil pipe 100, and application
The tubing nipple that the attachment device 200 is formed.
As shown in Figure 1, non-stick direct type composite continuous oil pipe 100 may include core pipe 101 and be set in outside core pipe 101
Pillar 102, core pipe 101 and pillar 102 are (poly- by deformable flexible material such as PE (polyethylene), PA (polyamide), PVDF
Vinylidene) etc. polymer composites be made.Be folded with cable 106 between core pipe 101 and pillar 102, cable 106 it is specific
The form of expression can be copper core.In order to which the position to cable 106 is fixed, can be folded between core pipe 101 and pillar 102
Fixed bed 103, cable 106 are arranged in fixed bed 103.In addition, down-hole liquid may be to invading caused by cable 106 in order to prevent
Erosion, cable 106 can be coated with oil resistant insulating layer 105 outside.
The quantity of cable 106 can be it is multiple (quantity that Fig. 1 schematically illustrates cable 106 is 4, but in practice,
The quantity of cable 106 can according to circumstances carry out the adjustment of adaptability, and the utility model is not construed as limiting this), multiple cables 106
It circumferentially can uniformly arrange.Also, in order to increase the contact area of cable 106 and fixed bed 103, cable 106 together with by its
The oil resistant insulating layer 105 being coated in it is arranged preferably in the form of the rotation that spiral shell is wound in an axial direction, to avoid cable 106 in an axial direction
Come from being sliding out in fixed bed 103.
Further, which can also include being folded in fixed bed 103 and pillar 102
Between tensile layer 104, tensile layer 104 can be made of the larger flexible material of toughness, such as above-mentioned cited high score
Sub- composite material can meet the requirement.It should be further noted that the upper end of tensile layer 104 and cable 106 can be with
It is stretched out from the upper end of core pipe 101 and pillar 102, concrete operations can be the compound continuous oil of non-stick direct type with above structure
Pipe 100 is in overall structure before being connect with attachment device 200, cuts or burns by correspondingly strip operation such as knife, will resist
The upper end of layer 104 and cable 106 is drawn to be stripped out.
As shown in Figures 2 and 3, the attachment device 200 for non-stick direct type composite continuous oil pipe 100 may include inner tube
201, which is arranged for the core pipe 101 of non-stick direct type composite continuous oil pipe 100, and inner tube 201 is close to the outer wall of upper end
Outwardly convex is formed with peripheral flange 2011, and the first perforation 2012 is provided in peripheral flange 2011；It is set in outside inner tube 201 simultaneously
The outer tube 202 being connected with peripheral flange 2011 is formed with ring cavity 203, ring cavity 203 and first between outer tube 202 and inner tube 201
Perforation 2012 is connected, the inwardly protruding formation spacing ring 2021 of inner wall of outer tube 202, is arranged on spacing ring 2021 fluted
2022。
When core pipe 101, which is set in, forms tubing nipple as shown in Figure 4 outside inner tube 201, the inner wall and pillar of outer tube 202
102 outer wall fits, and limiting through hole 2063 is formed between groove 2022 and the outer wall of inner tube 201, limiting through hole 2063 is for line
Cable 106 is worn, and cable 106 is extend out to through the first perforation 2012 outside ring cavity 203.
In the present embodiment, inner tube 201 and outer tube 202 are made of metal material.In particular, the gold of outer tube 202 is made
Belonging to material has preferable plastic deformation ability (such as can be alloy material), can occur forever under the action of buckle machine
Long plastic deformation, to non-stick direct type composite continuous oil pipe 100 core pipe 101 be set in inner tube 201 it is outer when, withheld hair
The outer tube 202 of raw permanent plastic deformation can compress non-stick direct type composite continuous oil pipe 100 and (it is compound specially compress non-stick direct type
The core pipe 101 and pillar 102 of coiled tubing 100), realize consolidating for non-stick direct type composite continuous oil pipe 100 and this attachment device 200
Fixed connection.
As shown in Fig. 2, in order to further increase the connection of non-stick direct type composite continuous oil pipe 100 and this attachment device 200
Intensity, inner tube 201 and outer tube 202 can have the structure design for increasing friction.
Specifically, can be, the outer wall outwardly convex of inner tube 201 be formed with multiple first steps being axially distributed along it
2013, first step 2013 has the first mount surface 2014 towards peripheral flange 2011.
The inner wall of pillar 102 is inwardly protruding to be formed with multiple second steps 2023 being axially distributed along it, second step
2023 have the second mount surface 2024 towards peripheral flange 2011.
First step 2013 and second step 2023 are respectively separated setting, to make 202 inner wall of 201 outer wall of inner tube and outer tube
It is uneven.Since core pipe 101 and pillar 102 are made of flexible material, permanent plastic deformation occurs in outer tube 202
When, core pipe 101 and pillar 102 can be extruded and deform, to be closely adhered to respectively in 201 outer wall of inner tube and outer wall
On wall.
Nationality is acted on by the mounting of the first mount surface 2014 and the second mount surface 2024 in face of peripheral flange 2011, Ke Yiji
The earth increases the frictional force between core pipe 101 and 202 inner wall of 201 outer wall of inner tube, pillar 102 and outer tube, to make non-stick direct type
Composite continuous oil pipe 100 is further improved with the bonding strength of this attachment device 200 in an axial direction.
It is interior in order to further improve the bonding strength of non-stick direct type composite continuous oil pipe 100 and this attachment device 200
It can be arranged with fixed ring 204 outside pipe 201, gap 205 is formed between the inner wall and the outer wall of inner tube 201 of fixed ring 204.
When core pipe 101 be set in inner tube 201 it is outer when, the upper end of tensile layer 104 can pass through gap 205 and be pressed together on pillar
Between 102 and outer tube 202, cable 106 can pass through gap 205, then pass sequentially through the perforation of ring cavity 203 and first 2012 and wear
Go out.
By the drag interaction of tensile layer 104, upward effect can be applied to non-stick direct type composite continuous oil pipe 100
Power, it is disconnected de- so as to avoid non-stick direct type composite continuous oil pipe 100 and this attachment device 200 that connection occurs.
The concrete operations that tensile layer 104 is pressed together between fixed ring 204 and outer tube 202 are that the upper end of tensile layer 104 passes through
The inside of fixed ring 204, is then turned over downwards and around the outside of fixed ring 204, between fixed ring 204 and outer tube 202,
Operation is withheld to the application of pillar 102 again, after permanent plastic deformation occurs for pillar 102, radial contraction change occurs therewith for outer tube 202
Shape, to which tensile layer 104 is tightly pressed together between pillar 102 and outer tube 202.
As shown in figure 5, the inwardly protruding formation spacing ring 2021 of the inner wall of outer tube 202 is integrally formed with outer tube 202, set thereon
The quantity for the groove 2022 set can be multiple, and preferably equal with the quantity of cable 106 (for example, being 4).Further,
The outer wall of inner tube 201 can form two spaced limit shoulders 2015 with outwardly convex, when core pipe 101 is set in inner tube
201 it is outer when, spacing ring 2021 can be embedded in two limit shoulders 2015 between, groove 2022 and two limit shoulders 2015 between
Form limiting through hole 2063.By spaced two limit shoulders 2015, and so that spacing ring 2021 is embedded and limited at two
Between step, axial limiting and fixation can be carried out to outer tube 202 and inner tube 201.
2011 one side of peripheral flange that outer wall outwardly convex of the inner tube 201 close to upper end is formed is used for and 202 phase of outer tube
Connection is to form the ring cavity 203, and the first perforation 2012 of the connection ring cavity 203 being provided with for cable 106 for wearing
Go out, on the other hand, peripheral flange 2011 is additionally operable to the connection of inner tube 201 and connector 206, can be used for Practical Project to be formed
Tubing nipple.
Specifically, in conjunction with shown in Fig. 6, outer wall of the connector 206 close to lower end can extend outward to form interconnecting piece 2061,
It is similar to flange arrangement with the interconnecting piece 2061 that this is formed.Interconnecting piece 2061 is connected with peripheral flange 2011, is specifically as follows,
It has been uniformly arranged in the circumferential direction multiple (such as Fig. 6 schematically illustrates 6) through-holes in interconnecting piece 2061, has been set in peripheral flange 2011
It is equipped with and is staggered and non-interference with multiple through-holes correspondingly threaded hole, multiple threaded hole and multiple first perforation 2012
(multiple bolts hole are circumferentially uniformly arranged, 2012 circumferentially uneven arrangements of multiple first perforation.Connection spiral shell is worn in through-hole
Bolt, bolt screw in threaded hole, to realize the connection of inner tube 201 and connector 206.
Further, the second perforation 2062, the second perforation 2062 and the first 2012 phases of perforation are provided on interconnecting piece 2061
Connection, to which cable 106 can stretch out ring cavity 203 by the first perforation 2012 being connected and the second perforation 2062.
The workflow of the tubing nipple formed using the attachment device 200 of the utility model embodiment is described below.
1, prepare non-stick direct type composite continuous oil pipe 100, strip out the cable 106 and tensile layer 104 of predetermined length；
2, it is inserted in fixed ring 204, fixed ring 204 passes through tensile layer 104, then bypasses the upper end of tensile layer 104 outward
Fixed ring 204, and negative drawing is tightened；
3, the core pipe 101 of non-stick direct type composite continuous oil pipe 100 is inserted in inner tube 201, the upper end of cable 106 is made to pass through
Accordingly groove 2022 and enter in ring cavity 203, and finally 2062 is pierced by through the first perforation 2012 and the second perforation；
4, by 102 buckle machine of pillar, first it is pushed into inner tube 201, also push-in withholds pillar 102 to precalculated position simultaneously for design,
Molding is withheld again；
5, sealing shroud is loaded onto in 106 exit of cable, upper binding head 206 is installed.
So far, tubing nipple completes assembling.
The attachment device 200 of the utility model embodiment and the tubing nipple formed using the attachment device 200, are led to
It crosses and is formed between inner tube 201 and outer tube 202 for accommodating the cable 106 being arranged in non-stick direct type composite continuous oil pipe 100
Ring cavity 203, and be arranged in the peripheral flange 2011 on the outer wall of upper end by being formed in inner tube 201 and worn for cable 106
The first perforation 2012 gone out is preferably realized to realize the connection to non-stick direct type composite continuous oil pipe 100 simultaneously to line
Cable 106 is protected in the receiving and sealing of cable 106.
It should be noted that in the description of the present invention, term " first ", " second " etc. be used for description purposes only and
Similar object is distinguished, between the two and sequencing is not present, can not be interpreted as indicating or implying relative importance.This
Outside, in the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more.
Herein cited any digital value all include between lower limiting value to upper limit value with the lower value of an incremented and
The all values of upper value, there are the intervals of at least two units between any lower value and any much higher value.For example, such as
Fruit elaborates that the quantity of component or the value of process variable (such as temperature, pressure, time etc.) are from 1 to 90, preferably from 21
To 80, more preferably from 30 to 70, then purpose is arrived in order to illustrate also clearly listing such as 15 to 85,22 in the specification
68,43 to 51,30 to 32 is equivalent.For the value less than 1, suitably think that a unit is 0.0001,0.001,0.01,0.1.
These are only intended to the example clearly expressed, it is believed that the numerical value enumerated between minimum and peak is possible to
Combination is all expressly set forth in the specification in a similar manner.
Unless otherwise indicated, all ranges all include all numbers between endpoint and endpoint.It is used together with range
" about " or " approximation " be suitable for two endpoints of the range.Thus, " about 20 to 30 " are intended to covering " about 20 to about
30 ", including at least the endpoint indicated.
It should be understood that above description is to illustrate rather than to be limited.By reading above-mentioned retouch
It states, many embodiments and many applications except the example provided all will be aobvious and easy for a person skilled in the art
See.Therefore, the range of this introduction should not be determined with reference to foregoing description, but should with reference to preceding claims and this
The full scope of the equivalent that a little claims are possessed determines.Theme disclosed herein is omitted in preceding claims
Any aspect is not intended to abandon the body matter, also should not be considered as applicant the theme is not thought of as it is disclosed
A part for utility model theme.
Claims (10)
1. a kind of attachment device for non-stick direct type composite continuous oil pipe, the non-stick direct type composite continuous oil pipe includes core pipe
And it is set in the pillar outside the core pipe, it is folded with cable between the core pipe and the pillar；It is characterized in that, the company
Connection device includes：
Can be for the inner tube that the core pipe is arranged, outer wall outwardly convex of the said inner tube close to upper end is formed with peripheral flange, described
The first perforation is provided in peripheral flange；
It is set in the outer tube that said inner tube is outer and is connected with the peripheral flange, is formed between the outer tube and said inner tube
Ring cavity, the ring cavity are connected with first perforation, the inwardly protruding formation spacing ring of inner wall of the outer tube, the spacing ring
Upper setting is fluted；
When the core pipe is set in outside said inner tube, the inner wall of the outer tube and the outer wall of the pillar fit, described recessed
Limiting through hole is formed between slot and the outer wall of said inner tube, the limiting through hole is worn for the cable, described in the cable warp
First perforation is extend out to outside the ring cavity.
2. being used for the attachment device of non-stick direct type composite continuous oil pipe as described in claim 1, which is characterized in that said inner tube
Outer wall outwardly convex be formed with multiple first steps being axially distributed along it, the first step has convex towards the circumferential direction
First mount surface of edge.
3. being used for the attachment device of non-stick direct type composite continuous oil pipe as described in claim 1, which is characterized in that the outer tube
Inner wall it is inwardly protruding be formed with multiple second steps being axially distributed along it, the second step has convex towards the circumferential direction
Second mount surface of edge.
4. being used for the attachment device of non-stick direct type composite continuous oil pipe as described in claim 1, which is characterized in that said inner tube
It is arranged with fixed ring outside, gap is formed between the inner wall of the fixed ring and the outer wall of said inner tube；
The non-stick direct type composite continuous oil pipe further includes being folded between the core pipe and the pillar and being located at the cable
The upper end of the core pipe and the pillar is stretched out in the tensile layer in outside, the upper end of the tensile layer；When the core pipe is set in
When outside said inner tube, the upper end of the tensile layer across the gap and is pressed together on the pillar and the outer tube, described
Cable passes through the gap.
5. being used for the attachment device of non-stick direct type composite continuous oil pipe as described in claim 1, which is characterized in that said inner tube
Outer wall outwardly convex formed two spaced limit shoulders, when the core pipe is set in outside said inner tube, the limit
Position ring is embedded between two limit shoulders, and the limiting through hole is formed between the groove and two limit shoulders.
6. being used for the attachment device of non-stick direct type composite continuous oil pipe as described in claim 1, which is characterized in that further include connecting
Connector, outer wall of the connector close to lower end extend outward to form interconnecting piece, and the interconnecting piece is connected with the peripheral flange
It connects, the second perforation is provided on the interconnecting piece, second perforation is connected with first perforation.
7. a kind of tubing nipple, which is characterized in that including：
Non-stick direct type composite continuous oil pipe comprising：Core pipe and the pillar being set in outside the core pipe, the core pipe and described
Cable is folded between pillar；
Attachment device as described in claim 1 to 6 any one, the core pipe are set in outside said inner tube, the outer tube
The outer wall of inner wall and the pillar fits, and limiting through hole, the limit are formed between the groove and the outer wall of said inner tube
Through-hole is worn for the cable, and the cable is extend out to through first perforation outside the ring cavity.
8. tubing nipple as claimed in claim 7, which is characterized in that the core pipe is made of flexible material；Said inner tube
Outer wall outwardly convex be formed with multiple first steps being axially distributed along it, the first step has convex towards the circumferential direction
First mount surface of edge.
9. tubing nipple as claimed in claim 7, which is characterized in that the pillar is made of flexible material；The outer tube
Inner wall it is inwardly protruding be formed with multiple second steps being axially distributed along it, the second step has convex towards the circumferential direction
Second mount surface of edge.
10. tubing nipple as claimed in claim 7, which is characterized in that be arranged with fixed ring, the fixed ring outside said inner tube
Inner wall and the outer wall of said inner tube between be formed with gap；
The non-stick direct type composite continuous oil pipe further includes being folded in tensile layer and sandwiched between the core pipe and the pillar
The core pipe and the pillar are stretched out in fixed bed between the tensile layer and the core pipe, the upper end of the tensile layer
Upper end, the cable are arranged in the fixed bed, and the cable is coated with oil resistant insulating layer；The tensile layer passes through described
Gap is simultaneously pressed together between the spacing ring and the outer tube, and the cable passes through the gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721777740.1U CN207686621U (en) | 2017-12-19 | 2017-12-19 | Attachment device and tubing nipple for non-stick direct type composite continuous oil pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721777740.1U CN207686621U (en) | 2017-12-19 | 2017-12-19 | Attachment device and tubing nipple for non-stick direct type composite continuous oil pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207686621U true CN207686621U (en) | 2018-08-03 |
Family
ID=62994360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721777740.1U Active CN207686621U (en) | 2017-12-19 | 2017-12-19 | Attachment device and tubing nipple for non-stick direct type composite continuous oil pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207686621U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111396648A (en) * | 2020-05-23 | 2020-07-10 | 胜利油田新大管业科技发展有限责任公司 | Cable laying pipe connecting structure |
-
2017
- 2017-12-19 CN CN201721777740.1U patent/CN207686621U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111396648A (en) * | 2020-05-23 | 2020-07-10 | 胜利油田新大管业科技发展有限责任公司 | Cable laying pipe connecting structure |
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