CN206608130U - Fluid pressure type fishing spear - Google Patents
Fluid pressure type fishing spear Download PDFInfo
- Publication number
- CN206608130U CN206608130U CN201720370789.9U CN201720370789U CN206608130U CN 206608130 U CN206608130 U CN 206608130U CN 201720370789 U CN201720370789 U CN 201720370789U CN 206608130 U CN206608130 U CN 206608130U
- Authority
- CN
- China
- Prior art keywords
- piston
- piston bush
- bush
- screw thread
- shaft
- 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
Links
Abstract
The utility model belongs to oil field well technical field of tools, more particularly to a kind of fluid pressure type fishing spear.Including piston bush, piston rod and lower contact, described piston rod includes piston and slide bar, the two is fixedly connected, piston is arranged in piston bush, described lower contact is enclosed on the outside of slide bar and is threadedly attached in the lower end of piston bush, between piston bush and piston, sealing ring is provided between slide bar and lower contact, described piston set upper side is provided with the oil pipe threaded connector for connection operation tubing string, the liquid passage excessively for the confined space being provided with the side wall of piston bush inside connection oil pipe and below piston, piston bush side is provided with the balance pipe of the confined space and oil jacket annular space above connection piston, the bottom of described slide bar is provided with recovery hook.The utility model uses hydraulic principle, by driving piston rod upward sliding to injecting water under high pressure in sleeve pipe so that the cable or steel wire rope being hooked tightly are clamped, the problem of efficiently solving unhook.
Description
Technical field
The utility model belongs to oil field well technical field of tools, more particularly to a kind of fluid pressure type fishing spear.
Background technology
During underground work, often to payout under underground or steel wire rope, cable or steel wire rope are once broken, just
Need to use and drag for lance and salvaged.In conventional art, lance is often dragged for using the polished rod with lance hook and salvaged, due to not pressing from both sides
Locking structure, easily breaks off relations during cable or rope hoisting.Therefore, it is necessary to design a kind of salvaging with clamping structure
Lance, to solve the above problems.
The content of the invention
The utility model provides a kind of fluid pressure type fishing spear, it is therefore an objective to improve cable or steel wire rope salvage during easily take off
The problem of hook.
The technical problem that the utility model is solved is realized using following technical scheme：The utility model provides one kind
Fluid pressure type fishing spear, including piston bush, piston, shaft and top connection, described piston are inserted into piston bush and and piston bush
Inner wall sealing coordinate, described shaft coordinates out of, piston bush top insertion piston, and with the inner wall sealing of piston, described
Top connection be threadedly attached in the top of piston bush, while the upper end of shaft is fastened between top connection and piston bush,
It is provided with the outside of described piston on the outside of the annular jump ring with otch, jump ring and is provided with outer retaining screw thread, it is described
The bottom on the inside of the interior retaining screw thread matched with the external screw thread on jump ring, piston bush is provided with the inside of piston bush provided with cunning
Set, the both sides of sliding sleeve are each provided with a slideway, and sliding sleeve is connected on piston bush by the latch being inserted in slideway, described lance
The top of bar is provided with to be provided with for connecting internal casing space with crossing for piston superjacent air space in liquid passage, described shaft
Lance hook.
Described outer retaining screw thread and the thread form of interior retaining screw thread are right angled triangle.
The beneficial effects of the utility model are：The utility model is internally provided with piston, and lance hook hooks cable or steel wire
After rope, piston is driven to move downward by the fluid pressure in oil pipe, piston promotes sliding sleeve to move downward, and makes sliding sleeve
Lower end is to close at lance hook, and then clamping cables or steel wire rope, has reached the effect for preventing that cable or steel wire rope from breaking off relations.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the screw thread cooperation schematic diagram between jump ring and piston bush inwall.
In figure：1- top connections, 2- crosses retaining screw thread in liquid passage, 3- piston bush, 4- shafts, 5- pistons, 6-, 7- sliding sleeves,
8- slideways, 9- latches, 10- lance hooks, 11- jump rings, 12- otch.
Embodiment
The utility model is described further below in conjunction with accompanying drawing：
The present embodiment includes piston bush 3, piston 5, shaft 4 and top connection 1, and described piston 5 is inserted into piston bush 3 simultaneously
Coordinate with the inner wall sealing of piston bush 3, lance hook 10 is provided with described shaft 4, shaft 4 is inserted from the top of piston bush 3 and lived
In plug 5, and coordinate with the inner wall sealing of piston 5, described top connection 1 is threadedly attached in the top of piston bush 3, simultaneously will
The upper end of shaft 4 is fastened between top connection 1 and piston bush 3.Shaft 4 is fixedly mounted between top connection 1 and piston bush 3, is made
Obtaining shaft 4 can follow oil pipe effectively to impact downwards, so that lance hook 10 gos deep into fish (cable or steel wire rope), so have
Fish is more stably hooked beneficial to lance hook 10.Shaft 4 is inserted in piston 5, and piston 5 can prevent shaft to 4 supporting roles of shaft
Stress deformation.
The outside of described piston 5 is provided with the annular jump ring 11 with otch 12, and the outside of jump ring 11 is provided with outside
Retaining screw thread, the inner side of described piston bush 3 is provided with the interior retaining screw thread 6 matched with the external screw thread on jump ring 11.It is inside and outside
The setting of retaining screw thread so that piston 5 can only one-way movement downwards, and can not move upwards, so that cable or steel wire rope exist
Oily overpressure can also remain clamped state in the case of releasing, and further prevent cable or steel wire rope from breaking off relations.
The bottom of the inner side of piston bush 3 is provided with sliding sleeve 7, and the both sides of sliding sleeve 7 are each provided with a slideway 8, and sliding sleeve 7 is by being inserted in
Latch 9 in slideway 8 is connected on piston bush 3.This connected mode of sliding sleeve 7 make it that the lower edge of sliding sleeve 7 can be from piston bush 3
Lower end stretch out so that further close to lance hook 10, improve clamping effect.
The top of described shaft 4 is provided with the liquid passage excessively for connecting internal casing space and the superjacent air space of piston 5
2, thus passage enters the space of the upside of piston 5 for highly pressurised liquid in oil pipe, so as to promote piston 5 to move.
Described outer retaining screw thread and the thread form of interior retaining screw thread 6 are right angled triangle, compared with other thread forms, right angle
The ability that the thread form structure of triangle bears load is most strong.
The utility model is internally provided with piston 5, and lance hook 10 is hooked after cable or steel wire rope, by oil pipe
Fluid pressure drives piston 5 to move downward, and piston 5 promotes sliding sleeve 7 to move downward, and the lower end of sliding sleeve 7 is leaned on at lance hook 10
Closely, and then clamping cables or steel wire rope, the effect for preventing that cable or steel wire rope from breaking off relations has been reached.
Claims (2)
1. a kind of fluid pressure type fishing spear, including piston bush (3), piston (5), shaft (4) and top connection (1), it is characterised in that：Institute
The piston (5) stated is inserted into piston bush (3) and coordinated with the inner wall sealing of piston bush (3), and described shaft (4) is from piston bush
(3) in top insertion piston (5), and coordinate with the inner wall sealing of piston (5), described top connection (1) is connected through a screw thread
Top in piston bush (3), while the upper end of shaft (4) is fastened between top connection (1) and piston bush (3), described work
It is provided with the outside of plug (5) on the outside of the annular jump ring (11) with otch (12), jump ring (11) and is provided with outer retaining screw thread,
The interior retaining screw thread (6) matched with the external screw thread on jump ring (11), piston bush are provided with the inside of described piston bush (3)
(3) bottom on the inside of is provided with sliding sleeve (7), and the both sides of sliding sleeve (7) are each provided with a slideway (8), and sliding sleeve (7) is by being inserted in slideway
(8) latch (9) in is connected on piston bush (3), and the top of described shaft (4) is provided with for connecting internal casing space
Crossing in liquid passage (2), described shaft (4) for piston (5) superjacent air space is provided with lance hook (10).
2. a kind of fluid pressure type fishing spear according to claim 1, it is characterised in that：Described outer retaining screw thread and interior retaining
The thread form of screw thread (6) is right angled triangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720370789.9U CN206608130U (en) | 2017-04-07 | 2017-04-07 | Fluid pressure type fishing spear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720370789.9U CN206608130U (en) | 2017-04-07 | 2017-04-07 | Fluid pressure type fishing spear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206608130U true CN206608130U (en) | 2017-11-03 |
Family
ID=60167384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720370789.9U Expired - Fee Related CN206608130U (en) | 2017-04-07 | 2017-04-07 | Fluid pressure type fishing spear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206608130U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107780863A (en) * | 2017-11-24 | 2018-03-09 | 新疆国利衡清洁能源科技有限公司 | Drag for pipe |
-
2017
- 2017-04-07 CN CN201720370789.9U patent/CN206608130U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107780863A (en) * | 2017-11-24 | 2018-03-09 | 新疆国利衡清洁能源科技有限公司 | Drag for pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171103 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |