CN203978330U - A kind of flap self-locking mouse hole chuck - Google Patents
A kind of flap self-locking mouse hole chuck Download PDFInfo
- Publication number
- CN203978330U CN203978330U CN201420379700.1U CN201420379700U CN203978330U CN 203978330 U CN203978330 U CN 203978330U CN 201420379700 U CN201420379700 U CN 201420379700U CN 203978330 U CN203978330 U CN 203978330U
- Authority
- CN
- China
- Prior art keywords
- flap
- lead
- slide block
- chute
- drilling rod
- 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.)
- Expired - Fee Related
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- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The utility model relates to a kind of flap self-locking mouse hole chuck, comprise cylindrical shell and be arranged at guiding mechanism and the retaining mechanism in shell, described guiding mechanism comprises lead flap, and flap is serially connected with on lead through chute, and the center of flap is provided with boring; Described retaining mechanism comprises two slide blocks that are symmetrical set, and slide block is serially connected with on the lead of guiding mechanism and is the oblique line sliding mode along lead, and slide block inner side is respectively equipped with off-centre operation chute, is equipped with dental lamina in chute.The slide block being symmetrical set is with the upper and lower easy motion of flap, in the inner side off-centre operation chute of slide block, be provided with dental lamina, when the female joint of drilling rod presses down flap and drives flap to move downward, slide block draws close and is adjacent to drilling rod along sliding into center, two dental laminas in the off-centre operation chute of two slide block inner side symmetries are followed drilling rod and are rotated around drilling rod axle in off-centre operation chute, and locked with chute, hold drilling rod tightly.
Description
Technical field
The utility model relates to petroleum machinery field, is specifically related to a kind of flap self-locking mouse hole chuck.
Background technology
In petroleum drilling operation, need constantly from mouse hole adjunction spare drill rods to increase drilling depth, spare drill rods is vacant in mouse hole, mouse hole bottom is filled with sandy soil stone, sandy soil stone is withstood in spare drill rods lower end (pin end), and drilling rod upper end (box end) exposes mouse hole.In the time of adjunction spare drill rods, kelly bar pin thread connects spare drill rods upper end box, when the upper button of kelly bar rotation, drive spare drill rods to rotate, drilling rod lower end pin thread serious wear in sandy soil stone, have a strong impact on the application life of drilling rod, strengthen oil drilling use cost, and in the time docking spare drill rods next time, have the not firm hidden danger of docking, security performance is unstable.
Summary of the invention
Be positioned over lower end work button serious wear in mouse hole in order to solve spare drill rods in prior art, affect application life, have the deficiencies such as potential safety hazard, the utility model provides a kind of compact conformation, can effectively lead, clamp a kind of flap self-locking mouse hole chuck of spare drill rods.
The technical scheme that the utility model is taked is:
A kind of flap self-locking mouse hole chuck, comprise cylindrical shell and be arranged at guiding mechanism and the retaining mechanism in shell, described guiding mechanism comprises lead flap, flap is serially connected with and on lead, is the oblique line sliding mode along lead through chute, slide block inner side is respectively equipped with off-centre operation chute, is equipped with dental lamina in chute.Further, described lead is for being symmetrically arranged four cylinders of trapezoidal shape, and the upper end of lead is connected with the upper plate of shell, and the lower end of lead is connected with the lower bottom base of shell.
Further, described slide block be arranged at flap under, slide block bottom surface has spring to be squeezed state with being serially connected with on lead.
Further, described dental lamina is for being selenodont.
Again further, the interior circular arc of described dental lamina is reducing circular arc.
Take after above technical scheme, the beneficial effects of the utility model are:
(1) four lead is trapezoidal shape and is symmetrical arranged, and coordinates, and be serially connected with spring with the chute of four jiaos of flaps on lead, vertical while guaranteeing that turnover panel moves up and down, steadily, drilling rod slow-roll stabilization, and drilling rod axle is without skew, and drilling rod, without beating, can automatically reset.
(2) slide block being symmetrical set is with the upper and lower easy motion of flap, in the inner side off-centre operation chute of slide block, be provided with dental lamina, in the time that the female joint of drilling rod presses down flap and drive flap to move downward, slide block draws close and is adjacent to drilling rod along slideway to center, two dental laminas in the off-centre operation chute of two slide block inner side symmetries are followed drilling rod and are rotated around drilling rod axle in off-centre operation chute, and locked with chute, hold drilling rod tightly.Mechanism's locking locking more pneumatic, the mode of surging is more reliable, effectively.
(3) inner arc of dental lamina is reducing circular arc, can be processed as and the many diametral curves that use drill pipe diameter to mate, and range of application is wider, without repeatedly changing dental lamina, uses more convenient.
Brief description of the drawings
Fig. 1 is that master of the present utility model analyses and observe view;
Fig. 2 is A-A view of the present utility model;
In figure: shell 1, lead 2, flap 3, slide block 4, off-centre operation chute 5, dental lamina 6, spring 7.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is further described:
As shown in the figure, a kind of flap self-locking mouse hole chuck comprises shell 1 and is arranged at guiding mechanism and the retaining mechanism in shell 1, described guiding mechanism comprises four leads 2 and flap 3, described lead 2 is trapezoidal shape and is symmetricly set in shell, the upper end of lead 2 is connected with the upper plate of shell 1, the lower end of lead 2 is connected with the lower bottom base of shell 1, and flap 3 is serially connected with on four leads 2 and is upper and lower translation state through the chute of four jiaos, and the center of flap 3 is provided with boring; Described retaining mechanism comprises the symmetrically arranged slide block 4 in two of left and right and is arranged at the dental lamina 6 in slide block 4 inner side eccentric arc grooves 5, described slide block 4 is serially connected with respectively on two leads 2 of homonymy and is the oblique line sliding mode along lead 2, on lead 2, be serially connected with respectively spring 7, the lower bottom base extruding of one end of spring 7 and shell 1, the bottom surface extruding of the other end and slide block 4.Described dental lamina 6 is crescent shape, and the outer arc of dental lamina 6 coordinates with eccentric arc groove 5, and the inner arc of dental lamina 6 is reducing circular arc, comprises the circular arc of the different-diameter above by two sections.
A kind of operating principle of flap self-locking mouse hole chuck is: drilling rod is placed downwards through the boring at flap 3 centers, the female joint of drilling rod presses down flap 3 and drives flap 3 to move downward along lead 2, flap 3 presses down the resistance that slide block 4 overcomes spring 7 and draws close to center downwards along lead 2 simultaneously, until two slide blocks 4 are adjacent to drilling rod from left and right sides respectively, two dental laminas 6 in the off-centre operation chute 5 of slide block 4 inner side symmetries are followed drilling rod and are rotated around drilling rod axle in off-centre operation chute, and lock locking drilling rod with off-centre operation chute 5.
When after buckle on kelly bar pin thread and drilling rod upper end box, promote kelly bar, dental lamina 6 is at off-centre operation chute 5 upward slidings and unlock with drilling rod, and spring 7 upwards promotes slide block 4, automatically resets, and drilling rod is proposed after unclamping drilling rod.
Claims (5)
1. a flap self-locking mouse hole chuck, comprise cylindrical shell and be arranged at guiding mechanism and the retaining mechanism in shell, it is characterized in that, described guiding mechanism comprises lead flap, flap is serially connected with on lead through chute, and the center of flap is provided with boring; Described retaining mechanism comprises two slide blocks that are symmetrical set, and slide block is serially connected with on the lead of guiding mechanism and is the oblique line sliding mode along lead, and slide block inner side is respectively equipped with off-centre operation chute, is equipped with dental lamina in chute.
2. a kind of flap self-locking mouse hole chuck according to claim 1, is characterized in that, described lead is for being symmetrically arranged four cylinders of trapezoidal shape, and the upper end of lead is connected with the upper plate of shell, and the lower end of lead is connected with the lower bottom base of shell.
3. a kind of flap self-locking mouse hole chuck according to claim 1, is characterized in that, described slide block be arranged at flap under, slide block bottom surface has spring to be squeezed state with being serially connected with on lead.
4. a kind of flap self-locking mouse hole chuck according to claim 1, is characterized in that, described dental lamina is for being selenodont.
5. according to a kind of flap self-locking mouse hole chuck described in claim 1 or 4, it is characterized in that, the interior circular arc of described dental lamina is reducing circular arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420379700.1U CN203978330U (en) | 2014-07-10 | 2014-07-10 | A kind of flap self-locking mouse hole chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420379700.1U CN203978330U (en) | 2014-07-10 | 2014-07-10 | A kind of flap self-locking mouse hole chuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203978330U true CN203978330U (en) | 2014-12-03 |
Family
ID=51975789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420379700.1U Expired - Fee Related CN203978330U (en) | 2014-07-10 | 2014-07-10 | A kind of flap self-locking mouse hole chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203978330U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234644A (en) * | 2014-07-10 | 2014-12-24 | 吴余祥 | Upper turnover plate self-locking mouse hole chuck |
-
2014
- 2014-07-10 CN CN201420379700.1U patent/CN203978330U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234644A (en) * | 2014-07-10 | 2014-12-24 | 吴余祥 | Upper turnover plate self-locking mouse hole chuck |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141203 Termination date: 20170710 |