CN204344001U - Polished rod breaking and falling prevention device - Google Patents
Polished rod breaking and falling prevention device Download PDFInfo
- Publication number
- CN204344001U CN204344001U CN201420721301.9U CN201420721301U CN204344001U CN 204344001 U CN204344001 U CN 204344001U CN 201420721301 U CN201420721301 U CN 201420721301U CN 204344001 U CN204344001 U CN 204344001U
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- locking portion
- lock piece
- polished rod
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- passage
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- 230000002265 prevention Effects 0.000 title 1
- 230000004308 accommodation Effects 0.000 claims description 36
- 230000001360 synchronised effect Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 description 15
- 230000000694 effects Effects 0.000 description 7
- 238000012856 packing Methods 0.000 description 6
- 239000012530 fluid Substances 0.000 description 4
- 239000003129 oil well Substances 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
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Abstract
The utility model provides a prevent that light pole breaks off device, include: the outer locking part is provided with a first channel with an opening diameter gradually increasing from top to bottom; the inner locking part is arranged in the first channel, the appearance of the inner locking part is matched with that of the first channel, the inner locking part protrudes out of the lower end part of the outer locking part, the inner locking part is provided with a second channel, and the polished rod penetrates through the second channel; the inner locking part has a first position which slides to the locking polished rod towards the upper part of the outer locking part and a second position which does not lock the polished rod and moves synchronously with the outer locking part. The utility model discloses a prevent that polished rod from breaking off device, simple structure, operation safety just can prevent effectively that the polished rod from breaking off the well head that causes out of control.
Description
Technical field
The utility model relates to field of petroleum exploitation, puts in particular to the anti-polished rod break off loading of one.
Background technology
Pumping well polish rod bears fluid column weight in oil pipe when upstroke, sucker rod is conducted oneself with dignity and the frictional force of sucker rod and oil pipe, the frictional force of sucker rod deadweight and sucker rod and oil pipe is born during down stroke, polished rod will bear millions of this fluctuating loads for 1 year, and polished rod is connected by optical-rod clamp with polished rod eye, optical-rod clamp has certain injury to polished rod, therefore the on-the-spot accident easily occurring polished rod break.After light rod-broken, under the pulling force of sucker rod deadweight, polished rod can fall into pit shaft, and the passage ejection that OIH gas produces after light rod-broken, makes well head out of control, cause environment pollution, produce potential safety hazard.
Utility model content
Main purpose of the present utility model be to provide one safely and effectively anti-polished rod break off loading put.
To achieve these goals, the utility model provides a kind of anti-polished rod break off loading and puts, and comprising: outer locking portion, has opening diameter and becomes large first passage gradually from top to bottom; Internal locking portion, to be arranged in first passage and the profile in internal locking portion and first passage suitable, internal locking portion protrudes from the bottom in outer locking portion, and internal locking portion has second channel, and polished rod is arranged in second channel; Wherein, the top that internal locking portion has a tight lock part toward the outside slides into the primary importance of locking polished rod and has to be synchronized with the movement with outer locking portion and do not lock the second place of polished rod.
Further, internal locking portion comprises: sawtooth layer, is arranged on the inner surface of second channel, and the sawtooth of sawtooth layer is obliquely installed upward.
Further, the inner surface of first passage has at least one connecting hole, and the inner surface of second channel has at least one through hole, and connecting hole is connected by safety pin with through hole, and connecting hole and through hole are coaxially arranged.
Further, the extended line of the axis of connecting hole and the axes intersect of first passage, the extended line of the axis of through hole and the axes intersect of second channel.
Further, the upper end of connecting hole distance first passage has spacing distance.
Further, through hole is positioned at the upper end of second channel.
Further, outer locking portion comprises: the first outer lock piece, has the first spatial accommodation; Second outer lock piece, has the second spatial accommodation, and the second outer lock piece is connected rotationally with the first outer lock piece; Wherein, the first spatial accommodation and the second spatial accommodation form first passage jointly.
Further, internal locking portion comprises: the first inner lock piece, has the 3rd spatial accommodation; Second inner lock piece, has the 4th spatial accommodation, and the first inner lock piece and the second inner lock piece are oppositely arranged and have spacing distance; Wherein, the 3rd spatial accommodation and the 4th spatial accommodation form second channel jointly, and the inner surface of first passage and the first inner lock piece and the second inner lock piece have corresponding connecting hole and through hole.
Further, outer locking portion also comprises: fixture, and its one end is connected in the first outer lock piece rotationally, and its other end has the structure the first outer lock piece and the second outer lock piece fixed.
Further, fixture comprises: connecting rod, and one end of connecting rod is connected in the first outer lock piece rotationally; Nut, is screwed onto the other end of connecting rod; Wherein, the second outer lock piece has the lock slots suitable with connecting rod, when the first outer lock piece and the second outer lock piece fix, connecting rod is arranged in lock slots, and nut holds out against the end in lock slots.
Application the technical solution of the utility model, provides a kind of anti-polished rod break off loading and puts.Anti-polished rod break off loading puts the outer locking portion that comprises, internal locking portion.Wherein, outer locking portion has opening diameter and becomes large first passage gradually from top to bottom, internal locking portion to be arranged in first passage and the profile in internal locking portion and first passage suitable, internal locking portion protrudes from the bottom in outer locking portion, internal locking portion has second channel, and polished rod is arranged in second channel.The top that internal locking portion has a tight lock part toward the outside slides into the primary importance of locking polished rod and has to be synchronized with the movement with outer locking portion and do not lock the second place of polished rod.
When light rod-broken, anti-polished rod break off loading is put and is together down dropped with disconnected de-polished rod, can be obstructed because strike packing box and no longer down move in the internal locking portion protruding from the bottom in outer locking portion in the process dropped.Meanwhile, outer locking portion can continue to move downward under the effect of inertia, and the inside of such internal locking portion tight lock part outside is then moved upward.Opening diameter due to outer locking portion becomes large from top to bottom gradually, so disconnected de-polished rod presss from both sides tighter and tighter until hold tightly locked by internal locking portion in the process of the movement toward above, polished rod is put with anti-polished rod break off loading and no longer continues down to drop in pit shaft.
Anti-polished rod break off loading of the present utility model is put, and structure is simple, handling safety and the well head that can effectively prevent light rod-broken from causing is out of control.
Accompanying drawing explanation
The Figure of description forming a application's part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 shows the front view put according to anti-polished rod break off loading of the present utility model;
Fig. 2 shows the upward view put according to anti-polished rod break off loading of the present utility model;
Fig. 3 shows the right view put according to anti-polished rod break off loading of the present utility model; And
Fig. 4 shows the internal construction schematic diagram put according to anti-polished rod break off loading of the present utility model.
Wherein, above-mentioned accompanying drawing comprises the following drawings mark:
10, tight lock part;
11, first passage;
12, second channel;
13, connecting hole;
14, the first outer lock piece;
15, the second outer lock piece;
16, fixture;
17, lock slots;
18, connecting rod;
19, nut;
20, internal locking portion;
21, through hole;
22, the first inner lock piece;
23, the second inner lock piece;
24, sawtooth layer.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
It is noted that following detailed description is all exemplary, be intended to provide further instruction to the application.Unless otherwise, all technology used herein and scientific terminology have the identical meanings usually understood with the application person of an ordinary skill in the technical field.
It should be noted that used term is only to describe detailed description of the invention here, and be not intended to the illustrative embodiments of restricted root according to the application.
As used herein, unless the context clearly indicates otherwise, otherwise singulative is also intended to comprise plural form, in addition, it is to be further understood that, " comprise " when using term in this manual and/or " comprising " time, it indicates existing characteristics, step, operation, device, assembly and/or their combination.
As depicted in figs. 1 and 2, the utility model provides a kind of anti-polished rod break off loading and puts.
Particularly, anti-polished rod break off loading is put and is comprised outer locking portion 10 and internal locking portion 20.Outer locking portion 10 has the first passage 11 that opening diameter becomes large from top to bottom gradually, internal locking portion 20 to be arranged in first passage 11 and the profile in internal locking portion 20 and first passage 11 suitable.Internal locking portion 20 protrudes from the bottom in outer locking portion 10, and internal locking portion 20 has second channel 12, and polished rod is arranged in second channel 12.Wherein, the top that internal locking portion 20 has a tight lock part 10 toward the outside slides into the primary importance of locking polished rod and has to be synchronized with the movement with outer locking portion 10 and do not lock the second place of polished rod.
When light rod-broken, anti-polished rod break off loading is put and is together down dropped with disconnected de-polished rod, can be obstructed because strike packing box and no longer down move in the internal locking portion 20 protruding from the bottom in outer locking portion 10 in the process dropped.Meanwhile, outer locking portion 10 can continue to move downward under the effect of inertia, and the inside of such internal locking portion 20 tight lock part 10 outside is then moved upward.Opening diameter due to outer locking portion 10 becomes large from top to bottom gradually, so disconnected de-polished rod presss from both sides tighter and tighter until hold tightly locked by internal locking portion 20 in the process of the movement toward above, polished rod is put with anti-polished rod break off loading and no longer continues down to drop in pit shaft.
Anti-polished rod break off loading of the present utility model is put, and structure is simple, handling safety and the well head that can effectively prevent light rod-broken from causing is out of control.And then ground, effectively avoid the environment pollution because light rod-broken oil spout causes.That is, it is simple that anti-polished rod break of the present utility model takes off apparatus structure, do not injure polished rod when oil well is normally produced, and when after light rod-broken, can be locked by polished rod fast, prevent polished rod from falling in well, prevent borehole fluid from spraying.
As shown in Figure 4, the inner surface of first passage 11 has at least one connecting hole 13, and the inner surface of second channel 12 has at least one through hole 21, and connecting hole 13 is connected by safety pin with through hole 21, and connecting hole 13 and through hole 21 are coaxially arranged.
Safety pin is connected to internal locking portion 20 and outer locking portion 10, and under the state that polished rod normally works, internal locking portion 20 and outer locking portion 10 together move with polished rod, and internal locking portion 20 and outer locking portion 10 keep being synchronized with the movement.
When light rod-broken, can be obstructed because strike packing box and no longer down move in internal locking portion 20.Meanwhile, outer locking portion 10 can continue to move downward under the effect of inertia, and now safety pin is cut off, and the inside of such internal locking portion 20 tight lock part 10 outside is then moved upward.Opening diameter due to outer locking portion 10 becomes large from top to bottom gradually, so disconnected de-polished rod presss from both sides tighter and tighter until hold tightly locked by internal locking portion 20 in the process of the movement toward above, polished rod is put with anti-polished rod break off loading and no longer continues down to drop in pit shaft.
Further, the extended line of the axis of connecting hole 13 and the axes intersect of first passage 11, the extended line of the axis of through hole 21 and the axes intersect of second channel 12.Make the axis of safety pin and passage be vertically disposed, ensure that the safety and reliability in the course of work.
As shown in Figure 4, connecting hole 13 has spacing distance apart from the upper end of first passage 11.Ensure that internal locking portion 10 has displacement, press from both sides tighter and tighter until hold tightly locked along with internal locking portion 10 moves up to disconnected de-polished rod.
And then ground, through hole 21 is positioned at the upper end of second channel 12.Connect more reliable, also more stable.
As shown in Figure 4, outer locking portion 10 comprises the first outer lock piece 14 and the second outer lock piece 15.First outer lock piece 14 has the first spatial accommodation, and the second outer lock piece 15 has the second spatial accommodation, and the second outer lock piece 15 is connected rotationally with the first outer lock piece 14.Wherein, the first spatial accommodation and the second spatial accommodation form first passage 11 jointly.Together with first outer lock piece 14 is rotatably connected to the second outer lock piece 15, can open or close, time closed, the first spatial accommodation and the second spatial accommodation form first passage 11 jointly.
Preferably, as shown in Figure 4, internal locking portion 20 comprises the first inner lock piece 22 and the second inner lock piece 23.First inner lock piece 22 has the 3rd spatial accommodation, and the second inner lock piece 23 has the 4th spatial accommodation, and the first inner lock piece 22 and the second inner lock piece 23 are oppositely arranged and have spacing distance.First inner lock piece 22 and the second inner lock piece 23 are fitted in the periphery of polished rod simultaneously, and the first inner lock piece 22 and the second inner lock piece 23 have distance and do not contact.Wherein, the 3rd spatial accommodation and the 4th spatial accommodation form second channel 12 jointly, and the inner surface of first passage 11 and the first inner lock piece 22 and the second inner lock piece 23 have corresponding connecting hole 13 and through hole 21.The inner surface of first passage 11 is provided with connecting hole 13, the first inner lock piece 22 and the second inner lock piece 23 is provided with through hole 21, connecting hole 13 setting corresponding with the position of through hole 21.
As shown in Figure 4, internal locking portion 20 comprises sawtooth layer 24, and sawtooth layer 24 is arranged on the inner surface of second channel 12.For increasing the frictional force with polished rod, be formed with sawtooth layer 24 at the inner surface i.e. inner surface of the first inner lock piece 22 and the second inner lock piece 23 of second channel 12, the sawtooth of sawtooth layer 24 is obliquely installed upward.
As shown in Figure 1, outer locking portion 10 also comprises fixture 16.Fixture 16, its one end is connected in the first outer lock piece 14 rotationally, and its other end has the structure the first outer lock piece 14 and the second outer lock piece 15 fixed.Fixture 16 is for being fixedly connected with the first outer lock piece 14 and the second outer lock piece 15.
As shown in Figure 3 and Figure 4, fixture 16 comprises connecting rod 18 and nut 19.
One end of connecting rod 18 is connected in the first outer lock piece 14 rotationally, and nut 19 is screwed onto the other end of connecting rod 18.Wherein, the second outer lock piece 15 has the lock slots 17 suitable with connecting rod 18, when the first outer lock piece 14 and the second outer lock piece 15 fix, connecting rod 18 is arranged in lock slots 17, and nut 19 holds out against the end in lock slots 17.
In another embodiment, anti-polished rod break off loading is put and is comprised outer locking portion 10 and internal locking portion 20.Outer locking portion 10 has the first passage 11 that opening diameter becomes large from top to bottom gradually, internal locking portion 20 to be arranged in first passage 11 and the profile in internal locking portion 20 and first passage 11 suitable.Internal locking portion 20 protrudes from the bottom in outer locking portion 10, and internal locking portion 20 has second channel 12, and polished rod is arranged in second channel 12.Wherein, the top that internal locking portion 20 has a tight lock part 10 toward the outside slides into the primary importance of locking polished rod and has to be synchronized with the movement with outer locking portion 10 and do not lock the second place of polished rod.
When light rod-broken, anti-polished rod break off loading is put and is together down dropped with disconnected de-polished rod, can be obstructed because strike packing box and no longer down move in the internal locking portion 20 protruding from the bottom in outer locking portion 10 in the process dropped.Meanwhile, outer locking portion 10 can continue to move downward under the effect of inertia, and the inside of such internal locking portion 20 tight lock part 10 outside is then moved upward.Opening diameter due to outer locking portion 10 becomes large from top to bottom gradually, so disconnected de-polished rod presss from both sides tighter and tighter until hold tightly locked by internal locking portion 20 in the process of the movement toward above, polished rod is put with anti-polished rod break off loading and no longer continues down to drop in pit shaft.
Anti-polished rod break off loading of the present utility model is put, and structure is simple, handling safety and the well head that can effectively prevent light rod-broken from causing is out of control.And then ground, effectively avoid the environment pollution because light rod-broken oil spout causes.That is, it is simple that anti-polished rod break of the present utility model takes off apparatus structure, do not injure polished rod when oil well is normally produced, and when after light rod-broken, can be locked by polished rod fast, prevent polished rod from falling in well, prevent borehole fluid from spraying.
As shown in Figure 4, the inner surface of first passage 11 has at least one connecting hole 13, and the inner surface of second channel 12 has at least one through hole 21, and connecting hole 13 is connected by safety pin with through hole 21, and connecting hole 13 and through hole 21 are coaxially arranged.
Safety pin is connected to internal locking portion 20 and outer locking portion 10, and under the state that polished rod normally works, internal locking portion 20 and outer locking portion 10 together move with polished rod, and internal locking portion 20 and outer locking portion 10 keep being synchronized with the movement.
When light rod-broken, can be obstructed because strike packing box and no longer down move in internal locking portion 20.Meanwhile, outer locking portion 10 can continue to move downward under the effect of inertia, and now safety pin is cut off, and the inside of such internal locking portion 20 tight lock part 10 outside is then moved upward.Opening diameter due to outer locking portion 10 becomes large from top to bottom gradually, so disconnected de-polished rod presss from both sides tighter and tighter until hold tightly locked by internal locking portion 20 in the process of the movement toward above, polished rod is put with anti-polished rod break off loading and no longer continues down to drop in pit shaft.
Further, the extended line of the axis of connecting hole 13 and the axes intersect of first passage 11, the extended line of the axis of through hole 21 and the axes intersect of second channel 12.Make the axis of safety pin and passage be vertically disposed, ensure that the safety and reliability in the course of work.
As shown in Figure 4, connecting hole 13 has spacing distance apart from the upper end of first passage 11.Ensure that internal locking portion 10 has displacement, press from both sides tighter and tighter until hold tightly locked along with internal locking portion 10 moves up to disconnected de-polished rod.
And then ground, through hole 21 is positioned at the upper end of second channel 12.Connect more reliable, also more stable.
As shown in Figure 4, outer locking portion 10 comprises the first outer lock piece 14 and the second outer lock piece 15.First outer lock piece 14 has the first spatial accommodation, and the second outer lock piece 15 has the second spatial accommodation, and the second outer lock piece 15 is connected rotationally with the first outer lock piece 14.Wherein, the first spatial accommodation and the second spatial accommodation form first passage 11 jointly.Together with first outer lock piece 14 is rotatably connected to the second outer lock piece 15, can open or close, time closed, the first spatial accommodation and the second spatial accommodation form first passage 11 jointly.
Preferably, as shown in Figure 4, internal locking portion 20 comprises the first inner lock piece 22 and the second inner lock piece 23.First inner lock piece 22 has the 3rd spatial accommodation, and the second inner lock piece 23 has the 4th spatial accommodation, and the first inner lock piece 22 and the second inner lock piece 23 are oppositely arranged and have spacing distance.First inner lock piece 22 and the second inner lock piece 23 are fitted in the periphery of polished rod simultaneously, and the first inner lock piece 22 and the second inner lock piece 23 have distance and do not contact.Wherein, the 3rd spatial accommodation and the 4th spatial accommodation form second channel 12 jointly, and the inner surface of first passage 11 and the first inner lock piece 22 and the second inner lock piece 23 have corresponding connecting hole 13 and through hole 21.The inner surface of first passage 11 is provided with connecting hole 13, the first inner lock piece 22 and the second inner lock piece 23 is provided with through hole 21, connecting hole 13 setting corresponding with the position of through hole 21.
As shown in Figure 4, the inside in internal locking portion 20 is provided with screw thread, and screw thread is arranged on the inner surface of second channel 12.For increasing the frictional force with polished rod, be formed with screw thread at the inner surface i.e. inner surface of the first inner lock piece 22 and the second inner lock piece 23 of second channel 12, outstanding screw thread is obliquely installed upward.
As shown in Figure 1, outer locking portion 10 also comprises fixture 16.Fixture 16, its one end is connected in the first outer lock piece 14 rotationally, and its other end has the structure the first outer lock piece 14 and the second outer lock piece 15 fixed.Fixture 16 is for being fixedly connected with the first outer lock piece 14 and the second outer lock piece 15.
As shown in Figure 3 and Figure 4, fixture 16 comprises connecting rod 18 and nut 19.
One end of connecting rod 18 is connected in the first outer lock piece 14 rotationally, and nut 19 is screwed onto the other end of connecting rod 18.Wherein, the second outer lock piece 15 has the lock slots 17 suitable with connecting rod 18, when the first outer lock piece 14 and the second outer lock piece 15 fix, connecting rod 18 is arranged in lock slots 17, and nut 19 holds out against the end in lock slots 17.
As can be seen from the above description, the utility model the above embodiments achieve following technique effect:
When light rod-broken, anti-polished rod break off loading is put and is together down dropped with disconnected de-polished rod, can be obstructed because strike packing box and no longer down move in the internal locking portion 20 protruding from the bottom in outer locking portion 10 in the process dropped.Meanwhile, outer locking portion 10 can continue to move downward under the effect of inertia, and the inside of such internal locking portion 20 tight lock part 10 outside is then moved upward.Opening diameter due to outer locking portion 10 becomes large from top to bottom gradually, so disconnected de-polished rod presss from both sides tighter and tighter until hold tightly locked by internal locking portion 20 in the process of the movement toward above, polished rod is put with anti-polished rod break off loading and no longer continues down to drop in pit shaft.
Anti-polished rod break off loading of the present utility model is put, and structure is simple, handling safety and the well head that can effectively prevent light rod-broken from causing is out of control.
That is, it is simple that anti-polished rod break of the present utility model takes off apparatus structure, do not injure polished rod when oil well is normally produced, when after light rod-broken, fast polished rod can be locked, prevent polished rod from falling in well, prevent borehole fluid from spraying, effectively avoid the environment pollution because light rod-broken oil spout causes.
It should be noted that, term " first ", " second " etc. in the manual of the application and claims and above-mentioned accompanying drawing are for distinguishing similar object, and need not be used for describing specific order or precedence.Should be appreciated that the data used like this can be exchanged in the appropriate case, so as the embodiment example of the application described herein if with except here diagram or describe those except order implement.
In addition, term " comprises " and " having " and their any distortion, intention is to cover not exclusive comprising, such as, contain those steps or unit that the process of series of steps or unit, method, system, product or equipment is not necessarily limited to clearly list, but can comprise clearly do not list or for intrinsic other step of these processes, method, product or equipment or unit.
For convenience of description, here can usage space relative terms, as " ... on ", " in ... top ", " at ... upper surface ", " above " etc., be used for the spatial relation described as a device shown in the figure or feature and other devices or feature.
Should be understood that, space relative terms is intended to comprise the different azimuth in use or operation except the described in the drawings orientation of device.Such as, " in other devices or structure below " or " under other devices or structure " will be positioned as after if the device in accompanying drawing is squeezed, being then described as the device of " above other devices or structure " or " on other devices or structure ".
Thus, exemplary term " in ... top " can comprise " in ... top " and " in ... below " two kinds of orientation.This device also can other different modes location (90-degree rotation or be in other orientation), and relatively describe space used here and make respective explanations.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. an anti-polished rod break off loading is put, and it is characterized in that, comprising:
Outer locking portion (10), has the first passage (11) that opening diameter becomes large from top to bottom gradually;
Internal locking portion (20), to be arranged in described first passage (11) and the profile of described internal locking portion (20) and described first passage (11) suitable, described internal locking portion (20) protrudes from the bottom of described outer locking portion (10), described internal locking portion (20) has second channel (12), and described polished rod is arranged in described second channel (12);
Wherein, described internal locking portion (20) has the primary importance that to slide into towards the top of described outer locking portion (10) and lock described polished rod and has to be synchronized with the movement with described outer locking portion (10) and do not lock the second place of described polished rod.
2. anti-polished rod break off loading according to claim 1 is put, and it is characterized in that, described internal locking portion (20) comprising:
Sawtooth layer (24), is arranged on the inner surface of described second channel (12), and the sawtooth of described sawtooth layer (24) is obliquely installed upward.
3. anti-polished rod break off loading according to claim 1 is put, it is characterized in that, the inner surface of described first passage (11) has at least one connecting hole (13), the inner surface of described second channel (12) has at least one through hole (21), described connecting hole (13) is connected by safety pin with described through hole (21), and described connecting hole (13) and described through hole (21) are coaxially arranged.
4. anti-polished rod break off loading according to claim 3 is put, it is characterized in that, the extended line of the axis of described connecting hole (13) and the axes intersect of described first passage (11), the extended line of the axis of described through hole (21) and the axes intersect of described second channel (12).
5. anti-polished rod break off loading according to claim 3 is put, and it is characterized in that, described connecting hole (13) has spacing distance apart from the upper end of described first passage (11).
6. anti-polished rod break off loading according to claim 5 is put, and it is characterized in that, described through hole (21) is positioned at the upper end of described second channel (12).
7. anti-polished rod break off loading according to claim 1 is put, and it is characterized in that, described outer locking portion (10) comprising:
First outer lock piece (14), has the first spatial accommodation;
Second outer lock piece (15), has the second spatial accommodation, and described second outer lock piece (15) is connected rotationally with described first outer lock piece (14);
Wherein, described first spatial accommodation and described second spatial accommodation form described first passage (11) jointly.
8. anti-polished rod break off loading according to claim 3 is put, and it is characterized in that, described internal locking portion (20) comprising:
First inner lock piece (22), has the 3rd spatial accommodation;
Second inner lock piece (23), has the 4th spatial accommodation, and described first inner lock piece (22) and described second inner lock piece (23) are oppositely arranged and have spacing distance;
Wherein, described 3rd spatial accommodation and described 4th spatial accommodation form described second channel (12) jointly, and the inner surface of described first passage (11) and described first inner lock piece (22) and described second inner lock piece (23) have corresponding described connecting hole (13) and described through hole (21).
9. anti-polished rod break off loading according to claim 7 is put, and it is characterized in that, described outer locking portion (10) also comprises:
Fixture (16), its one end is connected on described first outer lock piece (14) rotationally, and its other end has the structure described first outer lock piece (14) and described second outer lock piece (15) fixed.
10. anti-polished rod break off loading according to claim 9 is put, and it is characterized in that, described fixture (16) comprising:
Connecting rod (18), one end of described connecting rod (18) is connected on described first outer lock piece (14) rotationally;
Nut (19), is screwed onto the other end of described connecting rod (18);
Wherein, described second outer lock piece (15) have the lock slots (17) suitable with described connecting rod (18), when described first outer lock piece (14) and described second outer lock piece (15) fix, described connecting rod (18) is arranged in described lock slots (17), and described nut (19) holds out against the end in described lock slots (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420721301.9U CN204344001U (en) | 2014-11-26 | 2014-11-26 | Polished rod breaking and falling prevention device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420721301.9U CN204344001U (en) | 2014-11-26 | 2014-11-26 | Polished rod breaking and falling prevention device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204344001U true CN204344001U (en) | 2015-05-20 |
Family
ID=53227276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420721301.9U Expired - Fee Related CN204344001U (en) | 2014-11-26 | 2014-11-26 | Polished rod breaking and falling prevention device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204344001U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145247A (en) * | 2019-04-25 | 2019-08-20 | 郑晓蕾 | A kind of anti-roofbolt of rod-pumped well is disconnected to take off device and application method |
-
2014
- 2014-11-26 CN CN201420721301.9U patent/CN204344001U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145247A (en) * | 2019-04-25 | 2019-08-20 | 郑晓蕾 | A kind of anti-roofbolt of rod-pumped well is disconnected to take off device and application method |
| CN110145247B (en) * | 2019-04-25 | 2020-09-29 | 郑晓蕾 | Rod string breaking and dropping prevention device for oil pumping well and use method |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20150520 |