CN113400255A - Oil pipe coupling jar - Google Patents
Oil pipe coupling jar Download PDFInfo
- Publication number
- CN113400255A CN113400255A CN202110615458.8A CN202110615458A CN113400255A CN 113400255 A CN113400255 A CN 113400255A CN 202110615458 A CN202110615458 A CN 202110615458A CN 113400255 A CN113400255 A CN 113400255A
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- bottom plate
- plate
- positive
- tubing coupling
- 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.)
- Pending
Links
- 230000008878 coupling Effects 0.000 title claims abstract description 31
- 238000010168 coupling process Methods 0.000 title claims abstract description 31
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 31
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 230000000087 stabilizing effect Effects 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 2
- 239000003921 oil Substances 0.000 description 27
- 238000000034 method Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000005580 one pot reaction Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B29/00—Accessories
Abstract
The invention belongs to the technical field of tubing couplings, and particularly relates to a tubing coupling jar, which comprises a bottom plate, wherein the upper surface of the bottom plate is fixedly connected with two support columns, the upper surfaces of the two support columns are fixedly connected with a hanging box together, the left side surface of the hanging box and the right side surface of the hanging box are both fixedly connected with bearings, the inner walls of the two bearings are fixedly connected with positive and negative threaded rods together, and the outer surfaces of the positive and negative threaded rods are in threaded connection with two sliding electric boxes. According to the invention, the motor is arranged, the driving wheel and the driven wheel can be driven to rotate through the rotation of the motor, the positive threaded rod and the negative threaded rod can be driven to rotate, the sliding electric box is arranged on the outer surface of the positive threaded rod and the negative threaded rod, the electric telescopic rod is additionally arranged on the front surface of the sliding electric box, the lifting rope fixed on the electric telescopic rod can move back and forth, the first clamping plate and the second clamping plate are arranged at the bottom end of the lifting rope, the oil pipe can move to the upper part of the bottom plate through the two clamping plates, and thus the manpower is greatly saved.
Description
Technical Field
The invention relates to the technical field of tubing coupling, in particular to a tubing coupling jar.
Background
The oil pipe coupling is one kind of oil well drilling tool and is used mainly in connection of oil pipe to solve the problem of easy fatigue and fracture of the coupling caused by stress concentration.
The oil pipe is frequently used in oil circuits of oil field exploitation and industrial production, a pipe coupling is used for connection between the oil pipe and the oil pipe, the oil pipe and the pipe coupling can rust in the open-air or industrial production oil circuit environment, when maintenance or repair of underground equipment for oil field exploitation or industrial oil circuits is needed, the connection part of the oil pipe needs to be separated, however, due to the fact that threads are corroded seriously and are difficult to disassemble, the connection part is loosened by a traditional method of manual hammering, the defects are that the disassembling efficiency is low, the labor intensity is high, the oil pipe is easy to strike and deform if hammering force is too large or uneven, and the maintenance cost is increased.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a tubing coupling jar, which solves the problems that the connection part is loosened by a traditional method of manual hammering, the disassembly efficiency is low, the labor intensity is high, and the tubing is easy to strike and deform if the hammering force is too large or uneven, so that the maintenance cost is increased, because the threads are corroded seriously and are difficult to disassemble.
In order to achieve the purpose, the invention provides the following technical scheme: an oil pipe coupling jar comprises a bottom plate, wherein the upper surface of the bottom plate is fixedly connected with two supporting columns, the upper surfaces of the two supporting columns are fixedly connected with a hanging box together, the left side surface of the hanging box and the right side surface of the hanging box are fixedly connected with bearings, the inner walls of the two bearings are fixedly connected with a positive threaded rod and a negative threaded rod together, the outer surface of the positive threaded rod and the negative threaded rod is in threaded connection with two sliding electric boxes, the fronts of the two sliding electric boxes are fixedly connected with electric telescopic rods, the output ends of the two electric telescopic rods are respectively provided with lifting ropes, one ends of the two lifting ropes, far away from the electric telescopic rods, are respectively fixedly connected with a fixing ring, the bottom surfaces of the two fixing rings are respectively and fixedly connected with a first clamping plate and a second clamping plate, the first clamping plate and the second clamping plate are in threaded connection through nuts and threaded columns, the upper surface of the hanging box is fixedly connected with a motor, the output fixedly connected with of motor owner runner, the surface cover of main runner is equipped with changes the area, it is equipped with from the runner to change the one pot head that the main runner was kept away from in the area, from the left surface of runner and the right flank fixed connection of positive and negative threaded rod, logical groove has been seted up to the upper surface of hanging the case.
The upper surface of the bottom plate is fixedly connected with a baffle plate, the upper surface of the baffle plate is fixedly connected with a connecting column, the upper surface of the connecting column is fixedly connected with an operating box, the inner wall of the operating box is provided with two sliding grooves, the insides of the two sliding grooves are respectively clamped with a sliding block, one side surface of the two sliding blocks close to each other is fixedly connected with a vibration motor together, the bottom surface of the vibration motor is fixedly connected with a knocking head, the upper surface of the bottom plate is provided with two sliding grooves, the interiors of the two sliding grooves are respectively clamped with a clamping block, the upper surfaces of the two clamping blocks are respectively fixedly connected with a reinforcing plate, the front surfaces of the two reinforcing plates are respectively in threaded connection with a small threaded rod, the upper surface of bottom plate fixedly connected with two loading boards, little screw rod runs through the loading board and extends to the dead ahead of loading board, two the equal fixedly connected with of one end that the gusset plate was kept away from to little screw rod changes the handle.
As a preferable technical scheme of the invention, a buffer cushion is arranged above the bottom plate, and the bottom surface of the buffer cushion is fixedly connected with the upper surface of the bottom plate.
As a preferable technical scheme of the invention, the upper surface of the hanging box is fixedly connected with two stabilizing plates, and one side surfaces of the two stabilizing plates, which are close to each other, are fixedly connected with the front surface of the motor and the back surface of the motor respectively.
As a preferable technical scheme of the invention, a safety warning board is arranged right in front of the bottom plate, and the back surface of the safety warning board is fixedly connected with the front surface of the bottom plate.
As a preferred technical scheme of the invention, the outer ring of the positive and negative threaded rod is provided with three limiting rings, and the inner wall of each limiting ring is fixedly connected with the outer surface of the positive and negative threaded rod.
As a preferable technical scheme of the invention, the upper surface of the bottom plate is fixedly connected with a stop lever, and one end of the stop lever, which is far away from the bottom plate, is fixedly connected with the back surface of the operation box.
As a preferred technical scheme of the invention, the side surfaces, close to each other, of the baffle plate and the reinforcing plate are fixedly connected with anti-skid pads, and the anti-skid pads are made of rubber.
As a preferable technical scheme of the invention, two rectangular supporting legs are arranged below the bottom plate, and the upper surfaces of the two rectangular supporting legs are fixedly connected with the bottom surface of the bottom plate.
As a preferable technical scheme of the invention, anti-skid plates are arranged below the two rectangular supporting legs, and the upper surfaces of the anti-skid plates are fixedly connected with the bottom surfaces of the rectangular supporting legs.
As a preferable technical solution of the present invention, two springs are fixedly connected to an inner bottom wall of the operation box, and top ends of the two springs are fixedly connected to a bottom surface of the vibration motor.
Compared with the prior art, the invention provides an oil pipe coupling jar, which has the following beneficial effects:
this oil pipe coupling jar, through setting up the motor, thereby can drive the action wheel and rotate and make positive and negative threaded rod from the rotation of driving wheel through the rotation of motor, through set up the slip electronic box and increase electric telescopic handle in the front of slip electronic box at the surface at positive and negative threaded rod, can make the lifting rope of fixing on electric telescopic handle carry out the back-and-forth movement, through first grip block of bottom installation and second grip block at the lifting rope, can make oil pipe remove the top of bottom plate through two grip blocks, the manpower has been saved greatly like this, the efficiency is improved.
This tubing coupling jar, through setting up baffle and gusset plate, the oil pipe and the tubing coupling that can treat the jar are carried out the centre gripping fixedly, through setting up the slipmat in the side that sets up baffle and gusset plate and be close to each other, can be more firm to the oil pipe centre gripping, through setting up the blotter at the upper surface of bottom plate, can play the cushioning effect at the in-process of placing oil pipe, avoid oil pipe and tubing coupling to receive the damage and warp, practiced thrift cost of maintenance.
Drawings
FIG. 1 is a front view of the base plate of the present invention;
FIG. 2 is a side view of the baffle of the present invention;
FIG. 3 is a cross-sectional view of a front view of the console box of the present invention;
FIG. 4 is a schematic perspective view of a first clamping plate according to the present invention;
figure 5 is a cross-sectional view of a side view of the hanging cage of the present invention.
In the figure: 1. a base plate; 2. a safety warning board; 3. a cushion pad; 4. a rectangular leg; 5. an anti-skid plate; 6. a support pillar; 7. a first clamping plate; 8. a lifting rope; 9. a slave wheel; 10. a main runner; 11. a motor; 12. a through groove; 13. hanging a box; 14. a positive and negative threaded rod; 15. a sliding electric box; 16. a limiting ring; 17. a bearing; 18. a stop lever; 19. a baffle plate; 20. an electric telescopic rod; 21. an operation box; 22. a knocking head; 23. a reinforcing plate; 24. a carrier plate; 25. turning a handle; 26. a clamping block; 27. a sliding groove; 28. a non-slip mat; 29. a chute; 30. a slider; 31. a vibration motor; 32. a spring; 33. a threaded post; 34. a nut; 35. a fixing ring; 36. a second clamping plate; 37. a stabilizing plate; 38. rotating the belt; 39. connecting columns; 40. a small threaded rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1-5, in this embodiment: an oil pipe coupling jar comprises a bottom plate 1, wherein the upper surface of the bottom plate 1 is fixedly connected with two supporting columns 6, the upper surfaces of the two supporting columns 6 are fixedly connected with a hanging box 13, the left side surface of the hanging box 13 and the right side surface of the hanging box 13 are fixedly connected with bearings 17, the inner walls of the two bearings (17) are fixedly connected with a positive threaded rod 14 and a negative threaded rod 14, the outer surface of the positive threaded rod 14 is in threaded connection with two sliding electric boxes 15, the front surfaces of the two sliding electric boxes 15 are fixedly connected with electric telescopic rods 20, the output ends of the two electric telescopic rods 20 are respectively provided with lifting ropes 8, one ends of the two lifting ropes 8 far away from the electric telescopic rods 20 are respectively and fixedly connected with fixing rings 35, the bottom surfaces of the two fixing rings 35 are respectively and fixedly connected with a first clamping plate 7 and a second clamping plate 36, the first clamping plate 7 and the second clamping plate 36 are in threaded connection with threaded columns 33 through nuts 34, the upper surface of the hanging box 13 is fixedly connected with a motor 11, the output end of the motor 11 is fixedly connected with a main rotating wheel 10, the outer surface of the main rotating wheel 10 is sleeved with a rotating belt 38, one end of the rotating belt 38, which is far away from the main rotating wheel 10, is sleeved with a slave rotating wheel 9, the left side surface of the slave rotating wheel 9 is fixedly connected with the right side surface of a positive and negative threaded rod 14, and the upper surface of the hanging box 13 is provided with a through groove 12.
Bottom plate 1's last fixed surface is connected with baffle 19, baffle 19's last fixed surface is connected with spliced pole 39, the last fixed surface of spliced pole 39 is connected with control box 21, two spout 29 have been seted up to control box 21's inner wall, the equal joint in inside of two spout 29 has slider 30, the common fixedly connected with vibrating motor 31 of a side that two sliders 30 are close to each other, vibrating motor 31's bottom surface fixedly connected with strikes head 22, two sliding tray 27 have been seted up to bottom plate 1's upper surface, the equal joint in inside of two sliding tray 27 has fixture block 26, the equal fixedly connected with gusset plate 23 in upper surface of two fixture blocks 26, the equal threaded connection in front of two gusset plates 23 has little threaded rod 40, two loading boards 24 of bottom plate 1's last fixed surface are connected with, little threaded rod 40 runs through loading board 24 and extends to the dead ahead of loading board 24, the equal fixedly connected with twist grip 25 of one end of gusset plate 23 is kept away from to two little threaded rod 40.
In the embodiment, a cushion pad 3 is arranged above a bottom plate 1, the bottom surface of the cushion pad 3 is fixedly connected with the upper surface of the bottom plate 1, the cushion pad 3 can play a role in buffering in the process of placing an oil pipe, the oil pipe and an oil pipe coupling are prevented from being damaged and deformed, two stabilizing plates 37 are fixedly connected with the upper surface of a hanging box 13, one side surfaces, close to each other, of the two stabilizing plates 37 are fixedly connected with the front surface of a motor 11 and the back surface of the motor 11 respectively, the motor 11 can be reinforced and the shaking is prevented, a safety warning board 2 is arranged right in front of the bottom plate 1, the back surface of the safety warning board 2 is fixedly connected with the front surface of the bottom plate 1, the safety warning board 2 can play a role in warning for workers, three limiting rings 16 are arranged on the outer rings of a positive threaded rod 14 and a negative threaded rod 14, the inner wall of each limiting ring 16 is fixedly connected with the outer surface of the positive threaded rod 14, and the limiting rings 16 can limit the sliding electric box 15, the upper surface of the bottom plate 1 is fixedly connected with a stop lever 18, one end of the stop lever 18 far away from the bottom plate 1 is fixedly connected with the back surface of an operation box 21, can consolidate control box 21, the equal fixedly connected with slipmat 28 in a side that baffle 19 and gusset plate 23 are close to each other, the material of slipmat 28 is rubber, slipmat 28 can be more firm to the oil pipe centre gripping, the below of bottom plate 1 is equipped with two rectangle landing legs 4, the upper surface of two rectangle landing legs 4 all with the bottom surface fixed connection of bottom plate 1, rectangle landing leg 4 can support the device, the below of rectangle landing leg 4 all is equipped with antiskid ribbed tile 5, the upper surface of antiskid ribbed tile 5 and the bottom surface fixed connection of rectangle landing leg 4, antiskid ribbed tile 5 can increase frictional force, two springs 32 of inner diapire fixedly connected with of control box 21, the top of two springs 32 all with vibrating motor 31's bottom surface fixed connection, spring 32 can play the effect of buffering to vibrating motor 31.
The working principle and the using process of the invention are as follows: when the tubing coupling needs to be vibrated, a worker firstly fixes the tubing between the first clamping plate 7 and the second clamping plate 36, then moves the tubing to the upper side of the bottom plate 1 through the electric telescopic rod 20 and the sliding electric box 15, then twists the nut 34 to separate the first clamping plate 7 from the second clamping plate 36, places the tubing between the baffle plate 19 and the reinforcing plate 23, manually shakes the rotating handle 25 to clamp the tubing by the reinforcing plate 23, and then drives the knocking head 22 to hammer the tubing coupling through the vibrating motor 31.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A tubing coupling jar, includes bottom plate (1), its characterized in that: the upper surface of the bottom plate (1) is fixedly connected with two supporting columns (6), the upper surfaces of the two supporting columns (6) are fixedly connected with a hanging box (13) together, the left side surface of the hanging box (13) and the right side surface of the hanging box (13) are fixedly connected with bearings (17), the inner walls of the two bearings (17) are fixedly connected with positive and negative threaded rods (14) together, the outer surface threads of the positive and negative threaded rods (14) are connected with two sliding electric boxes (15), the fronts of the two sliding electric boxes (15) are fixedly connected with electric telescopic rods (20), the output ends of the two electric telescopic rods (20) are respectively provided with lifting ropes (8), one ends of the two lifting ropes (8) far away from the electric telescopic rods (20) are fixedly connected with fixing rings (35), the bottom surfaces of the two fixing rings (35) are respectively and fixedly connected with a first clamping plate (7) and a second clamping plate (36), first grip block (7) and second grip block (36) are through nut (34) and screw thread post (33) threaded connection, the last fixed surface who hangs case (13) is connected with motor (11), the main runner (10) of output fixedly connected with of motor (11), the surface cover of main runner (10) is equipped with changes area (38), it is equipped with from runner (9) to change the pot head that main runner (10) was kept away from in area (38), the right side fixed surface who follows the left surface of runner (9) and positive and negative threaded rod (14) is connected, logical groove (12) have been seted up to the upper surface that hangs case (13).
The upper surface of the bottom plate (1) is fixedly connected with a baffle (19), the upper surface of the baffle (19) is fixedly connected with a connecting column (39), the upper surface of the connecting column (39) is fixedly connected with an operation box (21), the inner wall of the operation box (21) is provided with two sliding grooves (29), the two sliding grooves (29) are respectively and internally clamped with a sliding block (30), one side surfaces of the two sliding blocks (30) which are close to each other are fixedly connected with a vibration motor (31), the bottom surface of the vibration motor (31) is fixedly connected with a knocking head (22), the upper surface of the bottom plate (1) is provided with two sliding grooves (27), the two sliding grooves (27) are respectively and internally clamped with a clamping block (26), the upper surfaces of the two clamping blocks (26) are respectively and fixedly connected with a reinforcing plate (23), and the front surfaces of the two reinforcing plates (23) are respectively and threadedly connected with a small, the upper surface fixed connection of bottom plate (1) has two loading boards (24), little screw rod (40) run through loading board (24) and extend to the dead ahead of loading board (24), two the equal fixedly connected with of one end that gusset plate (23) was kept away from in little screw rod (40) changes handle (25).
2. The tubing coupling jar as claimed in claim 1 wherein: the novel floor is characterized in that a cushion pad (3) is arranged above the bottom plate (1), and the bottom surface of the cushion pad (3) is fixedly connected with the upper surface of the bottom plate (1).
3. The tubing coupling jar as claimed in claim 1 wherein: the upper surface of the hanging box (13) is fixedly connected with two stabilizing plates (37), and one side surfaces, close to each other, of the two stabilizing plates (37) are fixedly connected with the front surface of the motor (11) and the back surface of the motor (11) respectively.
4. The tubing coupling jar as claimed in claim 1 wherein: the safety warning board is characterized in that a safety warning board (2) is arranged in front of the bottom board (1), and the back of the safety warning board (2) is fixedly connected with the front of the bottom board (1).
5. The tubing coupling jar as claimed in claim 1 wherein: the outer lane of positive and negative threaded rod (14) is equipped with three spacing ring (16), every the inner wall of spacing ring (16) all is connected with the surface fixed of positive and negative threaded rod (14).
6. The tubing coupling jar as claimed in claim 1 wherein: the upper surface of the bottom plate (1) is fixedly connected with a stop lever (18), and one end, far away from the bottom plate (1), of the stop lever (18) is fixedly connected with the back of the operation box (21).
7. The tubing coupling jar as claimed in claim 1 wherein: the side face, close to each other, of the baffle plate (19) and the reinforcing plate (23) is fixedly connected with an anti-slip pad (28), and the anti-slip pad (28) is made of rubber.
8. The tubing coupling jar as claimed in claim 1 wherein: two rectangular supporting legs (4) are arranged below the bottom plate (1), and the upper surfaces of the two rectangular supporting legs (4) are fixedly connected with the bottom surface of the bottom plate (1).
9. The tubing coupling jar as claimed in claim 8 wherein: and anti-skid plates (5) are arranged below the two rectangular supporting legs (4), and the upper surfaces of the anti-skid plates (5) are fixedly connected with the bottom surfaces of the rectangular supporting legs (4).
10. The tubing coupling jar as claimed in claim 1 wherein: the inner bottom wall of the operation box (21) is fixedly connected with two springs (32), and the top ends of the two springs (32) are fixedly connected with the bottom surface of the vibration motor (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110615458.8A CN113400255A (en) | 2021-06-02 | 2021-06-02 | Oil pipe coupling jar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110615458.8A CN113400255A (en) | 2021-06-02 | 2021-06-02 | Oil pipe coupling jar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113400255A true CN113400255A (en) | 2021-09-17 |
Family
ID=77675962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110615458.8A Pending CN113400255A (en) | 2021-06-02 | 2021-06-02 | Oil pipe coupling jar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113400255A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116134A (en) * | 2010-01-05 | 2011-07-06 | 赵明理 | Tubing coupling with high corrosion resistance and high leakage resistance |
| CN103046885A (en) * | 2013-01-23 | 2013-04-17 | 郭子江 | Hitting device for loosening coupling of oil extraction pipe |
| CN207901068U (en) * | 2017-12-28 | 2018-09-25 | 江苏常宝滔邦石油管件有限公司 | A kind of tubing coupling vibration device |
| CN209190561U (en) * | 2018-10-19 | 2019-08-02 | 池州市三力精工机械有限公司 | A kind of novel clamp |
| CN112591618A (en) * | 2020-12-18 | 2021-04-02 | 江西鑫通机械制造有限公司 | Lifting device for coal mine maintenance equipment |
-
2021
- 2021-06-02 CN CN202110615458.8A patent/CN113400255A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116134A (en) * | 2010-01-05 | 2011-07-06 | 赵明理 | Tubing coupling with high corrosion resistance and high leakage resistance |
| CN103046885A (en) * | 2013-01-23 | 2013-04-17 | 郭子江 | Hitting device for loosening coupling of oil extraction pipe |
| CN207901068U (en) * | 2017-12-28 | 2018-09-25 | 江苏常宝滔邦石油管件有限公司 | A kind of tubing coupling vibration device |
| CN209190561U (en) * | 2018-10-19 | 2019-08-02 | 池州市三力精工机械有限公司 | A kind of novel clamp |
| CN112591618A (en) * | 2020-12-18 | 2021-04-02 | 江西鑫通机械制造有限公司 | Lifting device for coal mine maintenance equipment |
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Application publication date: 20210917 |