CN210483576U - Slip device - Google Patents
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- CN210483576U CN210483576U CN201920951711.5U CN201920951711U CN210483576U CN 210483576 U CN210483576 U CN 210483576U CN 201920951711 U CN201920951711 U CN 201920951711U CN 210483576 U CN210483576 U CN 210483576U
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- slip
- clamping jaw
- hook
- shell
- couple
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Abstract
The utility model relates to a slips device belongs to oil drilling equipment technical field. The utility model provides a pair of slip device stretches out the connecting rod through the middle part that makes the connecting rod and the one end of the articulated round pin axle of using of free end of drive arrangement's piston rod, and sets up the couple on the slips device, and the first end of couple is articulated with the slips turning arm. When the slip core falls into the channel of the slip shell and clamps the oil pipe, the hook body at the second end of the hook can be connected to the pin shaft, and the piston rod of the driving device cannot extend out accidentally due to reasons such as misoperation, so that the accident that the oil pipe falls into the well bottom due to accidental opening of the slip core is avoided. Just the utility model provides a slips device easy operation only needs one person's operation when mentioning or transferring oil pipe, can improve oil pipe and mention or transfer the efficiency.
Description
Technical Field
The utility model relates to a slips device belongs to oil drilling equipment technical field.
Background
In the field of oil drilling and production, an oil pipe is often lifted or lowered in workover operation, when the lifted or lowered oil pipe needs to be suspended, a pneumatic slip device is often used for clamping the oil pipe, and the oil pipe is loosened when the lifted or lowered oil pipe needs to be continuously lifted or lowered. The existing pneumatic slip device finishes the operation of clamping and loosening an oil pipe by driving a slip core through an air cylinder, and the pneumatic slip device is easy to be opened accidentally due to reasons such as manual misoperation and the like, so that the slip core loosens the oil pipe, and the oil pipe falls into a well bottom.
In order to avoid the accident that the pneumatic slip device causes the oil pipe to fall into the well due to misoperation, the anti-dropping elevator device is generally matched to be used when the oil pipe is lifted or lowered. The anti-drop elevator device consists of two semicircular parts which are detachably connected, and when the two semicircular parts are combined together, the inner diameter of the anti-drop elevator device is matched with the outer diameter of the oil pipe, so that the oil pipe can pass through; the inner diameter of the anti-drop elevator device is smaller than the outer diameter of the tubing coupling, and when the tubing drops, the tubing coupling on the tubing can be clamped on the anti-drop elevator device, so that the purpose of preventing the tubing from dropping to the bottom of the well is achieved. When the lifting or lowering operation of the oil pipe is to be completed, the two semicircular parts of the anti-dropping elevator device are separated, so that the oil pipe coupling of the oil pipe passes through.
However, when the oil pipe is lifted up or lowered down, the pneumatic slip device and the anti-drop elevator device are operated by at least two persons, which wastes human resources; on the other hand, every time an oil pipe is lowered, workers need to lap the anti-drop elevator again or remove the anti-drop elevator, and time is consumed when the oil pipe is lowered.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned defect among the prior art, the utility model provides a slips device.
The utility model provides a pair of slips device, include: the slip comprises a slip shell, wherein a channel is arranged in the slip shell, the channel extends along the axial direction of the slip shell, the inner diameter of the channel is gradually reduced from the upper end to the lower end of the slip shell, and the side end of the upper part of the slip shell extends along the direction deviating from the axis of the slip shell and forms a slip connecting lever; the slip core comprises a first clamping jaw, a second clamping jaw and a third clamping jaw, the second clamping jaw and the third clamping jaw are respectively hinged to two side ends of the first clamping jaw, the inner walls of the first clamping jaw, the second clamping jaw and the third clamping jaw are matched with the outer wall of the oil pipe, and the outer walls of the first clamping jaw, the second clamping jaw and the third clamping jaw are matched with the inner wall of the channel; the first end of the connecting rod is hinged with the upper end of the first clamping jaw, the second end of the connecting rod is hinged with one end, away from the axis of the slip shell, of the slip connecting lever, the middle of the connecting rod is hinged with the free end of a piston rod of the driving device through a pin shaft, and one end of the pin shaft extends out of the connecting rod; the first end of the hook is hinged with the slip crank arm, and the second end of the hook forms a hook body; the hook body is used for being connected with one end, extending out of the connecting rod, of the pin shaft.
As one of the optional technical solutions of the present invention, the slip device further includes: the first end of spring is connected on the slips turning arm, just the first end of spring is located the slips shell with between the first end of couple, the second end of spring with the couple is connected.
As one of the optional technical solutions of the present invention, the slip device further includes: the couple keeps off the nail, the couple keeps off nail detachable and connects on the slips turning arm, just the couple keeps off the nail and is located the first end of spring with between the first end of couple, the couple keeps off the nail and can prevent the couple court the rotation of slips shell's axis.
As one of the optional technical solutions of the present invention, the slip device further includes: a bolt; a threaded hole is formed in the hook, and the bolt is connected with the hook through the threaded hole; when the hook rotates to one end far away from the axis of the slip shell, the bolt can be clamped at one end, far away from the slip shell, of the slip crank arm.
As one of the optional technical solutions of the present invention, the slip device further includes: the mounting panel, the mounting panel welding is in on the slips turning arm, the first end of couple articulates on the mounting panel, the first end of spring is connected on the mounting panel, the couple keeps off the nail detachable and connects on the mounting panel.
As one of the optional technical solutions of the present invention, one end of the straight line segment of the hook extends in a direction perpendicular to the axis of the straight line segment and forms the hook body.
As one of the optional technical solutions of the present invention, an internal thread is provided on the inner wall of the first jaw, the second jaw and the third jaw.
As one of the optional technical solutions of the present invention, the first end of the connecting rod is provided with a groove, the upper end of the first claw extends into the groove and the first end of the connecting rod is hinged.
As one of the optional technical solutions of the present invention, the driving device is a cylinder or a hydraulic cylinder.
As one of the optional technical solutions of the present invention, the slip device further includes: and the slip base is fixed with the shell of the driving device.
The utility model provides a pair of slip device stretches out the connecting rod through the middle part that makes the connecting rod and the one end of the articulated round pin axle of using of free end of drive arrangement's piston rod, and sets up the couple on the slips device, and the first end of couple is articulated with the slips turning arm. When the slip core falls into the channel of the slip shell and clamps the oil pipe, the hook body at the second end of the hook can be connected to the pin shaft, and the piston rod of the driving device cannot extend out accidentally due to reasons such as misoperation, so that the accident that the oil pipe falls into the well bottom due to accidental opening of the slip core is avoided. Just the utility model provides a slips device easy operation only needs one person's operation when mentioning or transferring oil pipe, can improve oil pipe and mention or transfer the efficiency.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic structural diagram of a slip device provided in this embodiment in an unlocked state;
FIG. 2 is a schematic view of the slip device of the present embodiment gripping a tubular;
FIG. 3 is a schematic structural view of a slip housing of the slip assembly of the present embodiment;
FIG. 4 is a schematic structural diagram of a slip core in the slip apparatus provided in this embodiment;
fig. 5 is a schematic structural diagram of a hook in the slip device provided in this embodiment.
Description of reference numerals:
1-a slip housing;
101-slip crankarm;
2-a slip core;
201-a first jaw;
202-a second jaw;
203-a third jaw;
3-a slip base;
4-a connecting rod;
5-a pin shaft;
6-hooking;
601-hook body;
61-a spring;
62-hook stop nail;
63-bolt;
7-a piston rod;
8-mounting a plate;
9-oil pipe.
With the above figures, certain embodiments of the present invention have been shown and described in more detail below. The drawings and the description are not intended to limit the scope of the inventive concept in any way, but rather to illustrate the inventive concept by those skilled in the art with reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.
Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
The terms "upper" and "lower" are used to describe relative positions of the structures in the drawings, and are not used to limit the scope of the present invention, and the relative relationship between the structures may be changed or adjusted without substantial technical changes.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In addition, in the present invention, unless otherwise explicitly specified or limited, terms such as "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, may be fixedly connected, detachably connected, or integrated; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the field of oil drilling and production, an oil pipe is often lifted or lowered in workover operation, when the lifted or lowered oil pipe needs to be suspended, a pneumatic slip device is often used for clamping the oil pipe, and the oil pipe is loosened when the lifted or lowered oil pipe needs to be continuously lifted or lowered. The existing pneumatic slip device finishes the operation of clamping and loosening an oil pipe by driving a slip core through an air cylinder, and the pneumatic slip device is easy to be opened accidentally due to reasons such as manual misoperation and the like, so that the slip core loosens the oil pipe, and the oil pipe falls into a well bottom.
In order to avoid the accident that the pneumatic slip device causes the oil pipe to fall into the well due to misoperation, the anti-dropping elevator device is generally matched to be used when the oil pipe is lifted or lowered. The anti-drop elevator device consists of two semicircular parts which are detachably connected, and when the two semicircular parts are combined together, the inner diameter of the anti-drop elevator device is matched with the outer diameter of the oil pipe, so that the oil pipe can pass through; the inner diameter of the anti-drop elevator device is smaller than the outer diameter of the tubing coupling, and when the tubing drops, the tubing coupling on the tubing can be clamped on the anti-drop elevator device, so that the purpose of preventing the tubing from dropping to the bottom of the well is achieved. When the lifting or lowering operation of the oil pipe is to be completed, the two semicircular parts of the anti-dropping elevator device are separated, so that the oil pipe coupling of the oil pipe passes through.
However, when the oil pipe is lifted up or lowered down, the pneumatic slip device and the anti-drop elevator device are operated by at least two persons, which wastes human resources; on the other hand, every time an oil pipe is lowered, workers need to lap the anti-drop elevator again or remove the anti-drop elevator, and time is consumed when the oil pipe is lowered.
In order to solve the above technical problem that the pneumatic slip device exists among the prior art, this embodiment provides a slip device. The slip apparatus provided in the present embodiment will be described in terms of material selection, shape, structure, connection and matching relationship of the components, so that those skilled in the art can clearly and completely understand the technical solutions provided in the present embodiment and can easily implement the solutions.
As shown in fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, the present embodiment provides a slip device, including: the slip comprises a slip shell 1, wherein a channel is arranged in the slip shell 1, the channel extends along the axial direction of the slip shell 1, the inner diameter of the channel is gradually reduced from the upper end to the lower end of the slip shell 1, and the side end of the upper part of the slip shell 1 extends along the direction departing from the axis of the slip shell 1 to form a slip crank arm 101; the slip core 2 comprises a first jaw 201, a second jaw 202 and a third jaw 203, wherein the second jaw 202 and the third jaw 203 are respectively hinged to two side ends of the first jaw 201, the inner walls of the first jaw 201, the second jaw 202 and the third jaw 203 are matched with the outer wall of the oil pipe 9, and the outer walls of the first jaw 201, the second jaw 202 and the third jaw 203 are matched with the inner wall of the channel; the first end of the connecting rod 4 is hinged with the upper end of the first claw 201, the second end of the connecting rod 4 is hinged with one end, away from the axis of the slip shell 1, of the slip crank arm 101, the middle of the connecting rod 4 is hinged with the free end of a piston rod 7 of the driving device through a pin shaft 5, and one end of the pin shaft 5 extends out of the connecting rod 4; a hook 6, wherein a first end of the hook 6 is hinged with the slip crank arm 101, and a second end of the hook 6 forms a hook body 601; the hook 601 is used for connecting with one end of the pin 5 extending out of the connecting rod 4.
For example, the slip device of the present embodiment mainly performs two functions, the first is the basic function of the slip device, namely, the function of clamping and releasing the oil pipe; the second aspect is the function of preventing the slip core 2 from being accidentally opened when the slip device is gripping the oil pipe, which may cause the oil pipe to fall.
The passage formed inside the slip casing 1 of the slip device of this embodiment can be passed by the oil pipe 9, i.e. the minimum value of the inner diameter of the passage needs to be larger than the maximum value of the outer diameter of the oil pipe 9. In addition, the inner diameter of the channel is gradually reduced from top to bottom to form a conical shape, and the inner diameter of the upper part of the channel is the largest, so that the slip core 2 can enter the channel; in the process that the slip core 2 moves downwards in the channel, the slip core 2 contracts under the propping action of the inner wall of the channel due to the gradual reduction of the inner diameter of the channel, and further clamps the oil pipe 9. A schematic of the slip core 2 gripping the tubing 9 is shown in figure 2,
the lateral ends of the upper part of the slip housing 1 extend along an axis away from the slip housing 1 forming a slip bell arm 101, which slip bell arm 101 serves as a connecting link 4, a hook 6 etc. The slip turning arm 101 may be inclined upwardly at an end remote from the slip housing 1 so that when the connecting rod 4 is articulated with the slip turning arm 101, the slip turning arm 101 may be better matched with the connecting rod 4, thereby achieving the effect of ejecting the slip core 2 into the channel and pulling it into the channel.
The slip core 2 is provided with three jaws, the inner walls of the first jaw 201, the second jaw 202 and the third jaw 203 are used for clamping an oil pipe 9, and the outer walls of the first jaw 201, the second jaw 202 and the third jaw 203 are matched with the channel, so that the slip core 2 can smoothly enter the channel and can be contracted under the abutting action of the inner wall of the channel. After the slip core 2 falls into the channel, the overall shape of the outer wall of the slip core 2 can also be conical.
The second jaw 202 and the third jaw 203 of the slip core 2 are respectively hinged at two side ends of the first jaw 201, when the second jaw 202 and the third jaw 203 rotate around the first jaw 201 towards the inside of the slip core 2, the slip core 2 contracts, namely the inner diameter and the outer diameter of the slip core 2 are reduced, so as to clamp the oil pipe 9; when the second jaw 202 and the third jaw 203 rotate around the first jaw 201 to the outside of the slip core 2, the slip core 2 is opened, that is, the inner diameter and the outer diameter of the slip core 2 are enlarged, and the clamped oil pipe 9 can be released.
The upper end of the first claw 201 is hinged with the first end of the connecting rod 4, the second end of the connecting rod 4 is hinged with one end, far away from the slip shell 1, of the slip connecting lever 101, and the middle of the connecting rod 4 is hinged with the free end of a piston rod 7 of the driving device through a pin shaft 5. The piston rod 7 of the driving device stretches and retracts to drive the slip core 2 to fall into the channel of the slip shell 1 or push the slip core 2 out of the channel.
When the piston rod 7 makes telescopic motion, the connecting rod 4 and the slip core 2 rotate around the second end of the connecting rod 4. When the piston rod 7 retracts, the piston rod 7 drives the slip core 2 to fall into the channel through the connecting rod 4, and the first clamping jaw 201, the second clamping jaw 202 and the third clamping jaw 203 contract towards the axis of the channel under the abutting action of the inner wall of the channel; when the piston rod 7 extends, the piston rod 7 pushes the slip core 2 out of the channel through the connecting rod 4, and the first jaw 201, the second jaw 202 and the third jaw 203 can be opened.
The driving device in the slip device of the embodiment can be a pneumatic cylinder or a hydraulic cylinder, the housing of the driving device and the bottom end of the slip housing 1 are fixedly connected on the slip base 3, the free end of the piston rod 7 of the driving device faces the upper part of the slip housing 1, and the free end of the piston rod 7 is hinged with the middle part of the connecting rod 4 through the pin shaft 5.
One end of the pin 5 is extended out of the link 4 so that the hook body 601 of the hook 6 can be hooked on the link 4 when the slip core 2 grips the oil pipe 9 in the channel. The hook 6 of this embodiment is rotatable about a first end of the hook 6 and the hook body 601 of the hook 6 is adapted to engage with an end of the pin 5 extending beyond the link 4 when the slip core 2 is gripping the tubing 9 in the channel. Thereby limiting the accidental extension of the piston rod 7 and preventing the accidental opening of the slip core 2 from causing the tubing 9 to fall to the bottom of the well.
According to the slip device provided by the embodiment, the connecting rod 4 extends out of one end of the pin shaft 5 for hinging the middle part of the connecting rod 4 with the free end of the piston rod 7 of the driving device, the hook 6 is arranged on the slip device, and the first end of the hook 6 is hinged with the slip crank arm 101. When the slip core 2 falls into the channel of the slip shell 1 and clamps the oil pipe 9, the hook body 601 at the second end of the hook 6 can be connected to the pin shaft 5, and the piston rod 7 of the driving device cannot extend out accidentally due to reasons such as misoperation, so that the accident that the oil pipe 9 falls into the well bottom due to accidental opening of the slip core 2 is avoided. And the slips device that this embodiment provided easy operation only needs alone operation when lifting or transferring oil pipe 9, can improve the efficiency that oil pipe 9 lifted or transferred.
As shown in fig. 1 and 5, as one of alternative embodiments of this embodiment, the slip device further includes: and a spring 61, wherein a first end of the spring 61 is connected to the slip connecting lever 101, the first end of the spring 61 is positioned between the slip shell 1 and the first end of the hook 6, and a second end of the spring 61 is connected with the hook 6.
For example, in order to enable the hook 6 to be more effectively hooked on the pin 5, the slip device provided by the embodiment further connects the spring 61 to the slip cantilever, and the other end of the spring 61 is connected to the hook 6, when the hook body 601 of the hook 6 is connected to the pin 5, the spring 61 further tensions the hook 6, so that the hook 6 can be prevented from accidentally falling off, and the locking effect of the hook 6 on the slip core 2 is further enhanced.
As shown in fig. 5, as an alternative embodiment of this embodiment, the slip device further includes: the couple keeps off the nail 62, and the couple keeps off the nail 62 detachable and connects on slips turning arm 101, and the couple keeps off the nail 62 and is located between the first end of spring 61 and the first end of couple 6, and the couple keeps off the nail 62 and can prevent the rotation of couple 6 towards the axis of slips shell 1.
Illustratively, when the slip device is locked by the hook 6, the hook stopper pin 62 serves to prevent the rotation range of the hook 6, to prevent the hook 6 from being accidentally removed, and to facilitate easy hooking and removal of the hook 6. When the slip device is in an unlocking state, the hook stop pin 62 can be detached from the slip crank arm 101, and at this time, the hook 6 can continue to rotate towards the axial direction of the slip shell 1 under the action of the pulling force of the spring 61, so that the hook 6 is prevented from obstructing the connecting rod 4 to drive the slip core 2 to move.
The hook stopper pin 62 may be a threaded rod, and the hook stopper pin 62 may be detachably connected to the slip bell arm 101 through threads.
As shown in fig. 1 and 5, as one of alternative embodiments of this embodiment, the slip device further includes: a bolt 63; a threaded hole is formed in the hook 6, and the bolt 63 is connected with the hook 6 through the threaded hole; when the hook 6 is rotated to the end far away from the axis of the slip housing 1, the bolt 63 can be clamped at the end of the slip crank arm 101 far away from the slip housing 1.
Illustratively, when the slip device is in an unlocking state, the hook 6 can rotate along a direction away from the axis of the slip housing 1, and when the bolt 63 rotates to the outside of the slip crank arm 101, one end of the bolt 63 can be extended by rotating the bolt 63, so that the bolt can be clamped on the slip crank arm 101, and the hook 6 can be stopped.
Alternatively, a groove or a stop, etc. may be provided on slip bell 101, and the latch 6 may be deactivated by the bolt 63 engaging the groove or stop.
As shown in fig. 1 and 5, as one of alternative embodiments of this embodiment, the slip device further includes: mounting panel 8, the mounting panel 8 welding is on slips turning arm 101, and the first end of couple 6 articulates on mounting panel 8, and the first end of spring 61 is connected on mounting panel 8, and the couple keeps off nail 62 detachable and connects on mounting panel 8.
For example, due to the limitation of the thickness and the like of the slip joint arm 101 of the slip device, when the effect of directly connecting the hook 6, the spring 61 and the like to the slip joint arm 101 has an adverse effect on the locking function of the hook 6, the mounting plate 8 may be welded to the slip joint arm 101, and the hook 6, the spring 61, the hook stopper 62 and the like may be connected to the mounting plate 8.
As shown in fig. 1 and 5, as one of alternative embodiments of the present embodiment, one end of the straight line segment of the hook 6 extends in a direction perpendicular to the axis of the straight line segment and forms a hook body 601.
Illustratively, the present embodiment provides a hook 6 of the type that is bent to form a hook body 601 at one end of a rod or beam. The angle of the hook 601 to the bar or beam may be between 45 and 90 degrees to facilitate the attachment of the hook 601 of the hook 6 to the pin 5.
As one of the optional embodiments of this embodiment, the inner walls of the first jaw 201, the second jaw 202 and the third jaw 203 are provided with internal threads.
For example, in order to achieve more effective clamping of the oil pipe 9, the slip device provided in this embodiment is provided with internal threads on the inner walls of the first jaw 201, the second jaw 202 and the third jaw 203, and the friction between the inner wall of the slip inner core and the outer wall of the oil pipe 9 can be increased through the internal threads, so that the slip core 2 can clamp the oil pipe 9 more tightly.
As an alternative embodiment of this embodiment, the first end of the connecting rod 4 is provided with a groove, and the upper end of the first claw 201 extends into the groove to hinge with the first end of the connecting rod 4.
Illustratively, the upper end of the first jaw 201 may be a plate shape, and the first end of the connecting rod 4 may be provided with a groove, into which the upper end of the first jaw 201 extends and is hinged with the first end of the connecting rod 4.
As an optional implementation manner of this embodiment, the driving device is an air cylinder or a hydraulic cylinder.
For example, the piston rod 7 of the driving device in the slip device provided by the embodiment needs to have a telescopic function, and the driving device can be a pneumatic cylinder or a hydraulic cylinder.
As shown in fig. 1 and 3, as one of alternative embodiments of this embodiment, the slip device further includes: the slip base 3, the slip shell 1 and the shell of the driving device are all fixed on the slip base 3.
For example, the slip device provided by the embodiment further includes a slip base 3, the slip base 3 is supported on the ground, and the slip housing 1 and the housing of the driving device are both fixed on the slip base 3.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. A slip device, comprising:
the slip comprises a slip shell, wherein a channel is arranged in the slip shell, the channel extends along the axial direction of the slip shell, the inner diameter of the channel is gradually reduced from the upper end to the lower end of the slip shell, and the side end of the upper part of the slip shell extends along the direction deviating from the axis of the slip shell and forms a slip connecting lever;
the slip core comprises a first clamping jaw, a second clamping jaw and a third clamping jaw, the second clamping jaw and the third clamping jaw are respectively hinged to two side ends of the first clamping jaw, the inner walls of the first clamping jaw, the second clamping jaw and the third clamping jaw are matched with the outer wall of the oil pipe, and the outer walls of the first clamping jaw, the second clamping jaw and the third clamping jaw are matched with the inner wall of the channel;
the first end of the connecting rod is hinged with the upper end of the first clamping jaw, the second end of the connecting rod is hinged with one end, away from the axis of the slip shell, of the slip connecting lever, the middle of the connecting rod is hinged with the free end of a piston rod of the driving device through a pin shaft, and one end of the pin shaft extends out of the connecting rod;
the first end of the hook is hinged with the slip crank arm, and the second end of the hook forms a hook body; the hook body is used for being connected with one end, extending out of the connecting rod, of the pin shaft.
2. The slip apparatus of claim 1, further comprising:
the first end of spring is connected on the slips turning arm, just the first end of spring is located the slips shell with between the first end of couple, the second end of spring with the couple is connected.
3. The slip apparatus of claim 2, further comprising:
the couple keeps off the nail, the couple keeps off nail detachable and connects on the slips turning arm, just the couple keeps off the nail and is located the first end of spring with between the first end of couple, the couple keeps off the nail and can prevent the couple court the rotation of slips shell's axis.
4. The slip apparatus of claim 2, further comprising:
a bolt;
a threaded hole is formed in the hook, and the bolt is connected with the hook through the threaded hole; when the hook rotates to one end far away from the axis of the slip shell, the bolt can be clamped at one end, far away from the slip shell, of the slip crank arm.
5. The slip apparatus of claim 3, further comprising:
the mounting panel, the mounting panel welding is in on the slips turning arm, the first end of couple articulates on the mounting panel, the first end of spring is connected on the mounting panel, the couple keeps off the nail detachable and connects on the mounting panel.
6. The slip apparatus of claim 1, further comprising:
one end of the straight line section of the hook extends along the direction perpendicular to the axis of the straight line section and forms the hook body.
7. The slip assembly of claim 1, wherein:
and internal threads are arranged on the inner walls of the first clamping jaw, the second clamping jaw and the third clamping jaw.
8. The slip assembly of claim 1, wherein:
the first end of connecting rod is provided with the recess, the upper end of first jack catch stretch into in the recess with the first end of connecting rod is articulated.
9. The slip apparatus of claim 1, further comprising:
the driving device is an air cylinder or a hydraulic cylinder.
10. The slip apparatus of claim 1, further comprising:
and the slip base is fixed with the shell of the driving device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920951711.5U CN210483576U (en) | 2019-06-24 | 2019-06-24 | Slip device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920951711.5U CN210483576U (en) | 2019-06-24 | 2019-06-24 | Slip device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210483576U true CN210483576U (en) | 2020-05-08 |
Family
ID=70514498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920951711.5U Active CN210483576U (en) | 2019-06-24 | 2019-06-24 | Slip device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210483576U (en) |
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2019
- 2019-06-24 CN CN201920951711.5U patent/CN210483576U/en active Active
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