CN203925317U - A kind of pressure reduction clutch type tail pipe whirligig - Google Patents
A kind of pressure reduction clutch type tail pipe whirligig Download PDFInfo
- Publication number
- CN203925317U CN203925317U CN201420319401.9U CN201420319401U CN203925317U CN 203925317 U CN203925317 U CN 203925317U CN 201420319401 U CN201420319401 U CN 201420319401U CN 203925317 U CN203925317 U CN 203925317U
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- China
- Prior art keywords
- pressure transmission
- adapter sleeve
- lower contact
- slip cap
- tail pipe
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Abstract
The utility model discloses a kind of pressure reduction clutch type tail pipe whirligig, the utility model has added clutch component on traditional tail pipe whirligig, clutch component comprises slip cap, fixed cover and pressure transmission ring, pressure transmission ring is coaxially fixed in lower contact, slip cap is step cylinder towards a side of pressure transmission ring, and the cylindrical outer wall that wherein diameter is less is fixedly connected with by spline with the inwall of pressure transmission ring; In pressure transmission ring, be provided with pressure transmission duct, one end, pressure transmission duct is communicated with the liquid flow path of lower contact place, is provided with annular expansion cavity between the stepped ring forging face of the step cylinder of slip cap and pressure transmission ring, and the other end in pressure transmission duct is communicated with expansion cavity; Slip cap is fixed by the shear pin B being arranged on adapter sleeve, in the outside wall surface of a side of lower contact, be provided with protruding key dorsad at slip cap, on the other end inwall of fixed cover, be provided with the keyway corresponding with protruding key, on the internal face at adapter sleeve near cotter slot, be elasticly connected with pin.
Description
Technical field
The utility model relates to a kind of pressure reduction clutch type tail pipe whirligig, belongs to building field.
Background technology
The tail pipe whirligig of transmission only has single-stage releasing mechanism, the shear pin of organizing by list realize operation and complete after the disengaging of tail pipe and Connection Block, and in the time Connection Block and tail pipe occur cannot normally departing from, need to manually carry out the cut-out of shear pin, trouble very.
Utility model content
The technical problems to be solved in the utility model is: overcome single-stage detaching structure of the prior art and cannot ensure the disposable technical problem departing from completely, a kind of detaching structure of two-stage type is provided.
The utility model solves the technical scheme that its technical problem adopts:
A kind of pressure reduction clutch type tail pipe whirligig, comprises adapter sleeve, clutch component, adapter assembly and coupling assembling;
Described adapter assembly comprises the top connection and the lower contact that are plugged on adapter sleeve two ends;
Described clutch component is arranged on adapter sleeve inside, is positioned at the centre of adapter assembly, and described clutch component middle part is provided with the overcurrent duct coaxial with adapter sleeve;
Described coupling assembling comprises Connection Block and tail pipe, and described Connection Block is fixed in lower contact by screw thread, and described tail pipe is fixed on Connection Block by shear pin A, and described tail pipe is by the overcurrent hole link of Connection Block and adapter sleeve inside;
Described clutch component comprises slip cap, fixed cover and pressure transmission ring, described lower contact inwall is provided with the convergent mouth that a diameter is less than overcurrent duct, described pressure transmission ring is coaxially fixed in lower contact, described slip cap is step cylinder towards a side of pressure transmission ring, and the cylindrical outer wall that wherein diameter is less is fixedly connected with by spline with the inwall of pressure transmission ring;
In described pressure transmission ring, be provided with pressure transmission duct, one end, described pressure transmission duct is communicated with the liquid flow path of lower contact place, between the stepped ring forging face of the step cylinder of described slip cap and pressure transmission ring, be provided with annular expansion cavity, the other end in described pressure transmission duct is communicated with expansion cavity;
Described slip cap is fixed by the shear pin B being arranged on adapter sleeve, in the outside wall surface of a side of lower contact, be provided with protruding key dorsad at described slip cap, one end of described fixed cover is fixedly connected with top connection, between the outside wall surface of described fixed cover and the internal face of adapter sleeve, be dynamically connected by bearing rotary, on the other end inwall of described fixed cover, be provided with the keyway corresponding with described protruding key, middle part at described fixed cover is also provided with annular cotter slot, on internal face at described adapter sleeve near cotter slot, be elasticly connected with pin, described pin is made the straight line elastic movement perpendicular to adapter sleeve axis by spring.
As further innovation of the present utility model, the junction of described lower contact and adapter sleeve is provided with sealing ring.
The beneficial effects of the utility model are:
In the structure that the utility model departs from traditional single-stage, add one by slip cap being moved to the clutch of control, thereby can drive tube connector entirety and lower linking tube that lower linking tube is backed out from Connection Block by rotation top connection in clutch locking, realize the disengaging of tail pipe, while having avoided tail pipe to depart from, carry out the construction process that manual operation causes complicated.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is generalized section of the present utility model.
Detailed description of the invention
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, and basic structure of the present utility model is only described in a schematic way, and therefore it only shows the formation relevant with the utility model.
As shown in Figure 1, the utility model is a kind of pressure reduction clutch type tail pipe whirligig, mainly comprises adapter sleeve 8, lower contact 1, top connection 9, clutch component, Connection Block and tail pipe;
Clutch component comprises fixed cover 12, slip cap and pressure transmission ring 2, wherein lower contact 1 is socketed on the inwall of adapter sleeve 8, be inserted into adapter sleeve 8 one sides in lower contact 1 and be fixed with pressure transmission ring 2 simultaneously, adjacent with pressure transmission ring 2 is slip cap, be provided with a step cylinder that diameter is less in slip cap one end adjacent with pressure transmission ring 2, between the internal face of the outside wall surface of step cylinder and pressure transmission ring 2, be slidably connected by spline, slip cap is fixed on the inside of adapter sleeve 8 by shear pin B4 simultaneously;
Be provided with top connection 9 at the other end of adapter sleeve 8, wherein one end of top connection 9 is inserted into the inside of adapter sleeve 8, the insertion end of top connection 9 is simultaneously fixed on fixed cover 12, in the outside wall surface of fixed cover 12, be socketed with bearing simultaneously, make fixed cover 12 and the top connection 9 can be in the interior rotation of adapter sleeve 8, on the inwall of slip cap one side, be provided with keyway 6 at fixed cover 12, described slip cap towards fixed cover 12(towards top connection 9) the outside wall surface of a side on be provided with the protruding key 7 corresponding with described keyway 6, on the slip cap outer wall between shear pin 4 and protruding key 7, be provided with annular cotter slot simultaneously, between annular cotter slot and protruding key 7, be provided with pin 5, pin 5 is connected with adapter sleeve 8 elasticity by spring, wherein the elasticity start direction of pin 5 is vertical with the axis of adapter sleeve 8, when shear pin B4 does not also rupture, pin 5 is compressed in the wall of adapter sleeve 8,
On another end of lower contact 1, be provided with screw thread 11, lower contact 1 is fixed by screw thread 11 and Connection Block, and tail pipe is fixed on Connection Block by shear pin A simultaneously, and the junction of lower contact and adapter sleeve is provided with sealing ring 10;
Under general operating mode, top connection 9 is free to rotate, drill bit is by pour into mud in top connection 9, and flows out by tail pipe, after construction, if need to disconnect tail pipe, can be at the interior input of top connection 9 steel ball suitable with tail pipe diameter (being equal to the diameter of lower contact 1 segment port), now tail pipe sealing, if continued at top connection 9 place's input mud, the pressure of mud can by tail pipe dorsad Connection Block push, finally squeeze off shear pin A tail pipe come off;
Under real working condition, also can exist one-level to depart from the situation that cannot depart from tail pipe completely simultaneously, now can in top connection 9, add the steel ball suitable with lower contact 1 flared end diameter, now the mud in whole drill bit cannot be discharged, pressure presses the duct cavity 3 that makes to expand to expand by wearing of pressure transmission ring, now slip cap dorsad lower contact 1 move, squeeze off shear pin B4, keyway 6 is coordinated with protruding key 7, pin 5 snaps onto in cotter slot and realizes and fixing simultaneously, now lower contact 1 realizes coaxial rotation with top connection 9 by fixed cover 12, thereby lower contact 1 is backed out from holder, realize the disengaging to tail pipe.
Taking above-mentioned foundation desirable embodiment of the present utility model as enlightenment, by above-mentioned description, relevant staff can, not departing from the scope of this utility model technological thought, carry out various change and amendment completely.The technical scope of this utility model is not limited to the content on manual, must determine its technical scope according to claim scope.
Claims (2)
1. a pressure reduction clutch type tail pipe whirligig, is characterized in that: comprise adapter sleeve, clutch component, adapter assembly and coupling assembling;
Described adapter assembly comprises the top connection and the lower contact that are plugged on adapter sleeve two ends;
Described clutch component is arranged on adapter sleeve inside, is positioned at the centre of adapter assembly, and described clutch component middle part is provided with the overcurrent duct coaxial with adapter sleeve;
Described coupling assembling comprises Connection Block and tail pipe, and described Connection Block is fixed in lower contact by screw thread, and described tail pipe is fixed on Connection Block by shear pin A, and described tail pipe is by the overcurrent hole link of Connection Block and adapter sleeve inside;
Described clutch component comprises slip cap, fixed cover and pressure transmission ring, described lower contact inwall is provided with the convergent mouth that a diameter is less than overcurrent duct, described pressure transmission ring is coaxially fixed in lower contact, described slip cap is step cylinder towards a side of pressure transmission ring, and the cylindrical outer wall that wherein diameter is less is fixedly connected with by spline with the inwall of pressure transmission ring;
In described pressure transmission ring, be provided with pressure transmission duct, one end, described pressure transmission duct is communicated with the liquid flow path of lower contact place, between the stepped ring forging face of the step cylinder of described slip cap and pressure transmission ring, be provided with annular expansion cavity, the other end in described pressure transmission duct is communicated with expansion cavity;
Described slip cap is fixed by the shear pin B being arranged on adapter sleeve, in the outside wall surface of a side of lower contact, be provided with protruding key dorsad at described slip cap, one end of described fixed cover is fixedly connected with top connection, between the outside wall surface of described fixed cover and the internal face of adapter sleeve, be dynamically connected by bearing rotary, on the other end inwall of described fixed cover, be provided with the keyway corresponding with described protruding key, middle part at described fixed cover is also provided with annular cotter slot, on internal face at described adapter sleeve near cotter slot, be elasticly connected with pin, described pin is made the straight line elastic movement perpendicular to adapter sleeve axis by spring.
2. a kind of pressure reduction clutch type tail pipe whirligig as claimed in claim 1, is characterized in that: the junction of described lower contact and adapter sleeve is provided with sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420319401.9U CN203925317U (en) | 2014-06-17 | 2014-06-17 | A kind of pressure reduction clutch type tail pipe whirligig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420319401.9U CN203925317U (en) | 2014-06-17 | 2014-06-17 | A kind of pressure reduction clutch type tail pipe whirligig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203925317U true CN203925317U (en) | 2014-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420319401.9U Active CN203925317U (en) | 2014-06-17 | 2014-06-17 | A kind of pressure reduction clutch type tail pipe whirligig |
Country Status (1)
| Country | Link |
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| CN (1) | CN203925317U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104005712A (en) * | 2014-06-17 | 2014-08-27 | 江苏航天鸿鹏数控机械有限公司 | Differential pressure clutch type tail pipe rotating device |
-
2014
- 2014-06-17 CN CN201420319401.9U patent/CN203925317U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104005712A (en) * | 2014-06-17 | 2014-08-27 | 江苏航天鸿鹏数控机械有限公司 | Differential pressure clutch type tail pipe rotating device |
| CN104005712B (en) * | 2014-06-17 | 2016-03-23 | 江苏航天鸿鹏数控机械有限公司 | A kind of pressure reduction clutch type tail pipe whirligig |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |