CN202039808U - Novel drilling tool overshot - Google Patents
Novel drilling tool overshot Download PDFInfo
- Publication number
- CN202039808U CN202039808U CN2011201371246U CN201120137124U CN202039808U CN 202039808 U CN202039808 U CN 202039808U CN 2011201371246 U CN2011201371246 U CN 2011201371246U CN 201120137124 U CN201120137124 U CN 201120137124U CN 202039808 U CN202039808 U CN 202039808U
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- shutter
- cylindrical shell
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Abstract
The utility model discloses a novel drilling tool overshot, which comprises a barrel body. Two valve type tongs are oppositely arranged inside the barrel body along radial direction, and the valve type tongs are disposed on respective shafts which are fixed on inner wall of the barrel body. Retaining blocks are arranged on the inner wall of the barrel body and located above one ends of the valve type tongs close to the inner wall of the barrel body. The novel drilling tool overshot is simple in structure, high in success rate of salvage and easy to operate.
Description
Technical field
The utility model relates to the marine salvage equipment technical field, specifically a kind of novel dart.
Background technology
In the bored pile construction process, always be to use the combination rock bit to break the rock operation.The combination rock bit is that the area that will much have gear wheel is welded in steel plate and is made, and the combination rock bit that is used for big diameter borehole filling pile will be with tens areas even more.Difficulty that the joint meeting that the combination rock bit is connected with drilling rod is many because of face, the stratum suddenlys change is bored the torsion increase that causes and is occurred twisting off, and causes rock bit to drop at foot of hole.Rock bit 11 drop in wellhole 12 state as shown in Figure 1, rock bit and other drilling tools in irregular shape are fallen into and are salvaged very difficulty in the wellhole, modal way is to call Churn drill drill bit is smashed, change new combination rock bit again and finish boring again, cause the property loss (, costing an arm and a leg) of construction party thus, the waste of drill bit because of the brill tooth that adheres on the drill bit is that special alloy or diamond are made, construction cost increases, and incurs loss through delay the duration.In addition, the wellhole less stable of bored pile uses Churn drill operation processing accident to have very big potential safety hazard for a long time, might cause the hole of collapsing, and leads to security incident, and causes bigger economic loss.
Because the above-mentioned existing defective that the treatment technology of the drilling tool that comes off is existed, the design people actively study innovation, in the hope of founding a kind of novel dart, with the many drawbacks that exist in the solution prior art.
The utility model content
In order to solve the above-mentioned problems in the prior art, the utility model provides a kind of novel dart, have simple in structure, fishing success ratio height, characteristics such as easy operating.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme:
Novel dart, comprise cylindrical shell, described cylinder internal diameter is to being provided with two shutter-type handgrips relatively, described shutter-type handgrip be arranged at separately the axle on, described axle is fixed in cylinder inboard wall, described cylinder inboard wall is provided with the stop bit block, and described stop bit block is positioned at the top of close cylinder inboard wall one end of shutter-type handgrip.
Further, described cylindrical shell is a cylindrical tube.
Further, described shutter-type handgrip semicircular in shape.
Further, an end at the close cylindrical shell center of described shutter-type handgrip has cutting edge.
Further, has connecting rod on the described cylindrical shell.
Further, has fixing hole on the described connecting rod.
Compared with prior art, the beneficial effects of the utility model are:
1, novel dart of the present utility model can have been salvaged the drilling tool that comes off quickly and easily, need not as conventional art, to call heavy duty equipment, the long-time preparation and operation, needn't smash and hinder the drilling tool that comes off that creeps into, use dart processing accident of the present utility model, can reduce about 100,000 yuan economic loss.
2, use novel dart of the present utility model to salvage the time of having saved the processing accident, can not incur loss through delay the duration.
3, use novel dart of the present utility model to salvage processing accident quickly and easily, boring can be because accident treatment can not be dragged any more for a long time the unstability secondary security incidents such as hole that cause collapsing.
4, the novel dart of the present utility model location that integrates the rigidity cylindrical shell reaches the easily screens flexibly of rotating shaft shutter-type handgrip, advantage that grip is strong soon, and is simple in structure, and fishing success ratio height, speed are fast, effective.
Description of drawings
Fig. 1 is drop schematic diagram in the wellhole of combination rock bit.
Fig. 2 cuts open figure for the structure partial of novel dart of the present utility model.
Fig. 3 cuts open figure for the A-A of Fig. 2.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail, but not as to qualification of the present utility model.
Fig. 2 cuts open figure for the structure partial of novel dart of the present utility model; Fig. 3 cuts open figure for the A-A of Fig. 2.As shown in Figures 2 and 3, novel dart comprises cylindrical shell 1, and cylindrical shell 1 upper end has and is used for the connecting rod 2 that is connected with drilling rod.Have on the connecting rod 2 and be used for and the fixing fixing hole 3 of usefulness of drilling rod.Cylindrical shell 1 is a cylindrical tube.Radially be provided with relatively in the cylindrical shell 1 two around separately the axle 5 the rotation shutter-type handgrips 4.Shutter-type handgrip 4 semicirculars in shape.Each shutter-type handgrip 4 be arranged at separately the axle 5 on, and can around separately the axle 5 the rotation.Wherein, axle 5 is fixed on the cylinder inboard wall.Cylindrical shell 1 inwall is provided with stop bit block 6, and stop bit block 6 is positioned at the top of close cylinder inboard wall one end of shutter-type handgrip 4.The effect of stop bit block 6 is that the shutter-type handgrip can not arbitrarily be overturn downwards, makes the shutter-type handgrip can block the drill bit that comes off.Shutter-type handgrip semicircular in shape, an end at the close cylindrical shell center of shutter-type handgrip 4 has cutting edge 7.The setting of cutting edge 7 makes handgrip be easy to block drill bit more.
Novel dart of the present utility model in use, the connecting rod of cylindrical shell upper end is connected with the spigot of drilling rod, under the drive of drilling rod, move downward, when instruments such as drill bit that arrival comes off, the shutter-type handgrip sways, and upwards digs small angle, along with fisher continues to move downward, the shutter-type handgrip resets and blocks drilling rod on the drill bit, and mentioning fisher can propose boring to drilling tool.
Above embodiment is an exemplary embodiment of the present utility model only, is not used in restriction the utility model, and protection domain of the present utility model is defined by the claims.Those skilled in the art can make various modifications or be equal to replacement the utility model in essence of the present utility model and protection domain, this modification or be equal to replacement and also should be considered as dropping in the protection domain of the present utility model.
Claims (6)
1. novel dart, it is characterized in that, comprise cylindrical shell, described cylinder internal diameter is to being provided with two shutter-type handgrips relatively, described shutter-type handgrip be arranged at separately the axle on, described axle is fixed in cylinder inboard wall, and described cylinder inboard wall is provided with the stop bit block, and described stop bit block is positioned at the top of close cylinder inboard wall one end of shutter-type handgrip.
2. novel dart according to claim 1 is characterized in that, described cylindrical shell is a cylindrical tube.
3. novel dart according to claim 1 is characterized in that, described shutter-type handgrip semicircular in shape.
4. novel dart according to claim 1 is characterized in that, an end at the close cylindrical shell center of described shutter-type handgrip has cutting edge.
5. novel dart according to claim 1 is characterized in that, described cylindrical shell upper end has connecting rod.
6. novel dart according to claim 5 is characterized in that, has fixing hole on the described connecting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201371246U CN202039808U (en) | 2011-05-04 | 2011-05-04 | Novel drilling tool overshot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201371246U CN202039808U (en) | 2011-05-04 | 2011-05-04 | Novel drilling tool overshot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202039808U true CN202039808U (en) | 2011-11-16 |
Family
ID=44967257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201371246U Expired - Lifetime CN202039808U (en) | 2011-05-04 | 2011-05-04 | Novel drilling tool overshot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202039808U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105649565A (en) * | 2016-03-30 | 2016-06-08 | 中煤特殊凿井有限责任公司 | Drilling tool salvaging device |
-
2011
- 2011-05-04 CN CN2011201371246U patent/CN202039808U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105649565A (en) * | 2016-03-30 | 2016-06-08 | 中煤特殊凿井有限责任公司 | Drilling tool salvaging device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181026 Address after: 102628 B516, 4 floor, 6 building, 15 Jinyuan Road, Daxing District, Beijing. Patentee after: Beijing orient Nova survey and Design Co., Ltd. Address before: 100070 28, seven District, 188 tower, South Fourth Ring Road, Fengtai District, Beijing. Patentee before: Beijing New Oriental Star Petrochemical Engineering Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111116 |
|
| CX01 | Expiry of patent term |