CN207080196U - It is anti-extrusion to ruin casing hanger - Google Patents
It is anti-extrusion to ruin casing hanger Download PDFInfo
- Publication number
- CN207080196U CN207080196U CN201720864411.4U CN201720864411U CN207080196U CN 207080196 U CN207080196 U CN 207080196U CN 201720864411 U CN201720864411 U CN 201720864411U CN 207080196 U CN207080196 U CN 207080196U
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- China
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- ring
- sealing ring
- slip insert
- dental cast
- slips
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Abstract
The utility model discloses it is a kind of it is anti-extrusion ruin casing hanger, it includes slips dental cast（6）And slip insert（7）, slip insert（7）Installed in slips dental cast（6）It is interior；It is characterized in that：Also include holding screw（1）, sealing ring trim ring（2）, sealing ring（3）, sealing ring packing ring（4）, spacing ring（5）And lock-screw（8）, sealing ring（3）Pass through sealing ring trim ring（2）, sealing ring packing ring（4）And by holding screw（1）It is fixed on slips dental cast（6）Top, slip insert（7）Pass through spacing ring（5）Installed in slips dental cast（6）It is interior, slips dental cast（6）Bottom by lock-screw（8）It is fixed.The utility model optimizes hanger structure, ensures that the tooth of slip insert is completely embedded into sleeve pipe, slip insert no longer has the ability of slide downward, avoids sleeve pipe from being squeezed and ruin.
Description
Technical field
It the utility model is related to and a kind of anti-extrusion ruin casing hanger.
Background technology
Generally, sleeve pipe is after solid completion, cement ground return face or leaves certain free segment, and seat hangs over slip-type suspension
Weight on device is limited, once but cementing quality is bad or the problematic weight that may result in sleeve pipe of sleeve pipe quality always
Act on above slip insert and be continuously increased, or sleeve pipe is squeezed and ruined.
As shown in figure 1, the design of slip-type hanger is typically spacing using pair at present, slip insert is in slips dental cast
Glided on sliding surface, all carry the confined planes of larger angle up and down in sliding surface, the tooth of slip insert uses international every English
Very little 4 tooth.
As shown in Fig. 2 after slip insert is snapped down to certain distance, casing wt continues to increase, if casing strength
Not enough, it will cause slip insert to continue to glide on confined planes, when slip insert has falling tendency, extruding of the slip insert to sleeve pipe
Increase with the increase of the gravity acted on slip insert.
Due to the presence of sleeve pipe tolerance, the sleeve pipe that casing hanger has to comply with the different tolerances of same specification uses, when
Have larger gap when sleeve pipe does not reach most upper poor, between sleeve pipe and hanger to exist, if the later stage due to thermal expansion reason, leads
Sleeve pipe free segment part is caused to move up, hanger does not have the function of positioning casing centralization, and hanger bottom can not also be consolidated in addition
Fixed two valve slips dental casts.
The content of the invention
The purpose of this utility model is：Offer one kind is anti-extrusion to ruin casing hanger, optimizes hanger structure, avoids sleeve pipe quilt
Squeeze and ruin.
Technical solution of the present utility model is：The anti-extrusion casing hanger of ruining includes slips dental cast and slip insert,
Slip insert is arranged in slips dental cast；It is characterized in that：Also include holding screw, sealing ring trim ring, sealing ring, sealed loop-pad
Circle, spacing ring and lock-screw, sealing ring are fixed on slip insert shell by sealing ring trim ring, sealing ring packing ring and by holding screw
Body top, slip insert are arranged in slips dental cast by spacing ring, and the bottom of slips dental cast is fixed by lock-screw.
Wherein, the tooth of slip insert is the tooth of per inch 8.
The utility model has the advantages that：1st, spacing ring design is changed to by original Double-conical-surface is spacing, control exists when sleeve pipe
During minimal tolerance, the tooth of slip insert is completely embedded into sleeve pipe, and slip insert no longer has the ability of slide downward；2nd, slips is suitably increased
The length of tooth, make the casing length increase encircled；3rd, the tooth of slip insert is changed to the tooth of per inch 8 by original dental transition of per inch 4；4、
Optimize the back side taper of slip insert and increase surface roughness；5th, the bottom of slips dental cast is fixed by lock-screw, for hanging
Hanging device fixes two valve slips dental casts after encircling sleeve pipe.
Brief description of the drawings
Fig. 1 is former slips hanger structural representation.
Fig. 2 is the installation of former slips hanger sleeve pipe and cooperation schematic diagram.
Fig. 3 is structural representation of the present utility model.
Fig. 4 is Fig. 3 schematic perspective view.
In figure：1 holding screw, 2 sealing ring trim rings, 3 sealing rings, 4 sealing ring packing rings, 5 spacing rings, 6 slips dental casts, 7
Slip insert, 8 lock-screws.
Embodiment
Anti-extrusion casing hanger of ruining of the present utility model is further described with reference to accompanying drawing below.
As shown in Figure 3,4, the anti-extrusion casing hanger of ruining includes slips dental cast 6 and slip insert 7, and slip insert 7 is arranged on
In slips dental cast 6；It is characterized in that：Also include holding screw 1, sealing ring trim ring 2, sealing ring 3, sealing ring packing ring 4, spacing ring
5 and lock-screw 8, sealing ring 3 be fixed on slips dental cast by sealing ring trim ring 2, sealing ring packing ring 4 and by holding screw 1
6 tops, slip insert 7 are arranged in slips dental cast 6 by spacing ring 5, and the bottom of slips dental cast 6 is fixed by lock-screw 8.
Wherein, the tooth of slip insert 7 is the tooth of per inch 8.
Claims (2)
1. anti-extrusion ruin casing hanger, it includes slips dental cast（6）And slip insert（7）, slip insert（7）Installed in slip insert shell
Body（6）It is interior；It is characterized in that：Also include holding screw（1）, sealing ring trim ring（2）, sealing ring（3）, sealing ring packing ring（4）, it is spacing
Ring（5 ）And lock-screw（8）, sealing ring（3）Pass through sealing ring trim ring（2）, sealing ring packing ring（4）And by holding screw（1）Gu
It is scheduled on slips dental cast（6）Top, slip insert（7）Pass through spacing ring（5）Installed in slips dental cast（6）It is interior, slips dental cast
（6）Bottom by lock-screw（8）It is fixed.
2. it is according to claim 1 it is anti-extrusion ruin casing hanger, it is characterized in that：Slip insert（7）Tooth be the tooth of per inch 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720864411.4U CN207080196U (en) | 2017-07-17 | 2017-07-17 | It is anti-extrusion to ruin casing hanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720864411.4U CN207080196U (en) | 2017-07-17 | 2017-07-17 | It is anti-extrusion to ruin casing hanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207080196U true CN207080196U (en) | 2018-03-09 |
Family
ID=61423528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720864411.4U Active CN207080196U (en) | 2017-07-17 | 2017-07-17 | It is anti-extrusion to ruin casing hanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207080196U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111911107A (en) * | 2020-09-10 | 2020-11-10 | 江苏金石机械集团有限公司 | Extrusion type slip hanger |
-
2017
- 2017-07-17 CN CN201720864411.4U patent/CN207080196U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111911107A (en) * | 2020-09-10 | 2020-11-10 | 江苏金石机械集团有限公司 | Extrusion type slip hanger |
| CN111911107B (en) * | 2020-09-10 | 2023-08-11 | 江苏金石机械集团有限公司 | Extrusion type slip hanger |
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