CN214697772U

CN214697772U - Down-hole object falling preventing device for well repairing operation

Info

Publication number: CN214697772U
Application number: CN202121172439.4U
Authority: CN
Inventors: 樊文飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-05-28
Filing date: 2021-05-28
Publication date: 2021-11-12
Anticipated expiration: 2031-05-28

Abstract

The utility model discloses an underground prevents junk device that workover used, including the intubate, be provided with fast open fender on the intubate and protect mechanism and keep off with fast open fender and protect mechanism matched with buffer gear, fast open fender protects the mechanism and includes that the slip cap establishes the plectane on the intubate, the outside of plectane is a plurality of safety rope tie rings of equidistant fixedly connected with of annular, and the top right side of plectane articulates there is the connecting seat, and the top fixedly connected with arc of connecting seat keeps off the backplate, and the arc keeps off the top that the backplate is located the intubate, the arc keeps off bottom one side fixedly connected with L shape cassette of backplate. The utility model relates to a rationally, easy and simple to handle, be convenient for shelter from the buffering protection to the oil well pipe fast when workover, can effectively reduce the phenomenon that high altitude junk or other objects fall into in the oil well pipe, and be convenient for keep off the backplate to the arc fast and open or close and close the lock solid, open maintenance work for personnel temporarily and provide convenience, be favorable to the use.

Description

Down-hole object falling preventing device for well repairing operation

Technical Field

The utility model relates to a workover is with preventing junk equipment technical field in the pit, especially relates to a junk device is prevented in the pit that workover was used.

Background

During well repair, well head falling is often caused, except for normal well drilling, the well head is often in an unclosed state, when a sucker rod is drawn out for overhaul or well repair, well head tools and parts thereof have more chances to fall into the well, the larger one is slips and elevator, the smaller one is hammer, sledge bar and in shape and color, and when the sucker rod is moved out for maintenance, high-altitude falling or other objects fall due to the fact that a well head pipe is opened; it lacks the function of sheltering from the protection fast to the wellhead pipe after the oil pumping pipe takes out, can not satisfy the user demand, to this phenomenon, therefore we have provided the thing device that falls in pit that a workover used for solving above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing an underground anti-falling device for well repair operation.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an underground anti-falling device for workover treatment, includes the intubate, be provided with the fast open type on the intubate and keep off and protect mechanism and keep off the buffer gear who protects mechanism matched with the fast open type.

Preferably, the quick-open type blocking and protecting mechanism comprises a circular plate sleeved on the insertion pipe in a sliding manner, a plurality of safety rope bolt rings are fixedly connected to the outer side of the circular plate at equal intervals in an annular manner, a connecting seat is hinged to the right side of the top of the circular plate, an arc-shaped blocking and protecting plate is fixedly connected to the top of the connecting seat and positioned above the insertion pipe, an L-shaped clamping seat is fixedly connected to one side of the bottom of the arc-shaped blocking and protecting plate, a clamping block is fixedly connected to the left side of the top of the circular plate, an inclined plane is arranged at the top of the left side of the clamping block, a clamping groove with an opening arranged at the front side and the rear side is formed in the left side of the clamping block, a clamping rod is movably clamped in the clamping groove, the left end of the clamping rod extends to the left side of the L-shaped clamping seat and is fixedly connected with a moving rod, the L-shaped clamping seat is sleeved on the clamping rod in a sliding manner, a ball is nested at the right end of the clamping rod and is matched with the inclined plane on the clamping block, and a pull ring is fixedly connected to the left side of the moving rod, the rectangular channel has been seted up on the left side inner wall of L shape cassette, and the sliding sleeve is equipped with the rectangular block in the rectangular channel, the left side fixedly connected with locating lever of rectangular block, and the left end of locating lever extend to L shape cassette outside and with the right side fixed connection of carriage release lever, the first spring of fixedly connected with between the left side of rectangular block and the left side inner wall of rectangular channel, and first spring movable sleeve establishes on the locating lever.

Preferably, buffer gear establishes the annular fagging on the intubate including fixed cover, and annular fagging is located the below of plectane, the equal fixedly connected with guide bar in bottom both sides of plectane, and annular fagging slip cap is established on two guide bars, two buffer springs of fixedly connected with between the bottom of plectane and the top of annular fagging, and buffer spring movable sleeve establishes on the guide bar that corresponds.

Preferably, the top of the circular plate is provided with a first round hole, and the inner wall of the first round hole is connected with the outer side of the insertion tube in a sliding manner.

Preferably, the top of the clamping block is movably contacted with the inner wall of the top of the L-shaped clamping seat.

Preferably, a second round hole is formed in the inner wall of the left side of the L-shaped clamping seat, and the inner wall of the second round hole is in sliding connection with the outer side of the clamping rod.

Preferably, a third round hole is formed in the inner wall of the left side of the rectangular groove, and the inner wall of the third round hole is in sliding connection with the outer side of the positioning rod.

Preferably, the fourth round hole has all been seted up to the top both sides of annular fagging, and the inner wall of fourth round hole and the outside sliding connection of the guide bar that corresponds, set up the spacing groove that the bottom set up for the opening on the right side inner wall of fourth round hole, the right side bottom fixedly connected with stopper of guide bar, stopper and the spacing groove sliding connection that corresponds.

Compared with the prior art, the beneficial effects of the utility model are that:

by means of the insertion pipe, the circular plate, the connecting seat, the arc-shaped blocking protective plate, the safety rope bolt ring, the L-shaped clamping seat, the clamping block, the clamping groove, the moving rod, the clamping rod, the ball, the rectangular block, the first spring, the rectangular groove, the annular supporting plate, the guide rod and the positioning rod, when the oil well pipe is in an open state, the insertion pipe is inserted into the oil well pipe until the bottom of the annular supporting plate is in contact with the top of the oil well pipe, at the moment, the arc-shaped blocking protective plate can block the top end of the insertion pipe to block and block the oil well pipe, when high-altitude falling objects or objects fall on the top of the arc-shaped blocking protective plate, the arc-shaped blocking protective plate moves downwards under impact and drives the circular plate to slide downwards on the insertion pipe through the connecting seat, the circular plate drives the two guide rods to slide downwards in the corresponding fourth circular holes respectively and compresses the two buffer springs, and under the elastic force action of the buffer springs, the effect of buffering and unloading force on the impact force of the falling objects can be achieved, the damage risk of the arc-shaped guard plate is reduced, the protection effect is further improved, the oil well pipe can be shielded, buffered and protected during workover operation, and the risk of falling of objects is reduced;

when the temporary opening maintenance is needed, the pull ring is pulled leftwards to drive the moving rod to move leftwards, the moving rod drives the rectangular block to compress the first spring leftwards through the positioning rod, the moving rod drives the clamping rod to separate from the clamping groove leftwards, the arc-shaped blocking protective plate is rotated upwards to open, temporary blockage removal is achieved, when the blockage needs to be removed again after the maintenance, the arc-shaped blocking protective plate rotates downwards and presses the arc-shaped blocking protective plate, the arc-shaped blocking protective plate sequentially passes through the L-shaped clamping seat and the clamping rod to drive the ball to rotate downwards to be extruded with the inclined surface of the clamping block, under the extrusion force, the ball moves leftwards along the inclined surface and drives the clamping rod to move leftwards, the clamping rod sequentially passes through the moving rod and the positioning rod to drive the rectangular block to compress the first spring leftwards, when the clamping rod moves downwards to be aligned with the clamping groove, the first spring in the compressed state sequentially passes through the rectangular block, the positioning rod and the moving rod drive the clamping rod to be clamped into the clamping groove rightwards, the realization keeps off the backplate lock solid to the arc, is convenient for keep off the backplate to the arc fast and opens or close the lock solid, and the setting of safety rope bolt ring makes things convenient for personnel to tie the safety rope when overhauing, and personnel tie the other end of safety rope and connect the workover rig again, can prevent that the workover rig from dropping downwards.

The utility model relates to a rationally, easy and simple to handle, be convenient for shelter from the buffering protection to the oil well pipe fast when workover, can effectively reduce the phenomenon that high altitude junk or other objects fall into in the oil well pipe, and be convenient for keep off the backplate to the arc fast and open or close and close the lock solid, open maintenance work for personnel temporarily and provide convenience, be favorable to the use.

Drawings

Fig. 1 is a schematic structural view of an underground anti-falling device for workover treatment according to the present invention;

FIG. 2 is a schematic cross-sectional view of FIG. 1;

FIG. 3 is an enlarged view of part A of FIG. 2;

fig. 4 is a schematic structural diagram of a state that the underground anti-falling device for workover operation is inserted into an oil well pipe.

In the figure: the safety rope comprises an insertion pipe 1, a circular plate 2, a connecting seat 3, an arc-shaped blocking protection plate 4, a safety rope bolt ring 5, a 6L-shaped clamping seat, a clamping block 7, a clamping groove 8, a movable rod 9, a clamping rod 10, a ball 11, a rectangular block 12, a first spring 13, a rectangular groove 14, an annular supporting plate 15, a guide rod 16, a positioning rod 17 and a buffer spring 18.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-4, an underground anti-falling device for workover treatment comprises an insertion tube 1, wherein a quick-open type blocking and protecting mechanism and a buffer mechanism matched with the quick-open type blocking and protecting mechanism are arranged on the insertion tube 1;

the quick-opening type blocking and protecting mechanism comprises a circular plate 2 which is sleeved on an insertion pipe 1 in a sliding manner, a plurality of safety rope bolt rings 5 are fixedly connected to the outer side of the circular plate 2 at equal intervals in an annular manner, a connecting seat 3 is hinged to the right side of the top of the circular plate 2, an arc-shaped blocking and protecting plate 4 is fixedly connected to the top of the connecting seat 3, the arc-shaped blocking and protecting plate 4 is positioned above the insertion pipe 1, an L-shaped clamping seat 6 is fixedly connected to one side of the bottom of the arc-shaped blocking and protecting plate 4, a clamping block 7 is fixedly connected to the left side of the top of the circular plate 2, an inclined surface is arranged at the top of the left side of the clamping block 7, a clamping groove 8 with an opening is arranged at the front side and the rear side of the clamping block 7, a clamping rod 10 is movably clamped in the clamping groove 8, the left end of the clamping rod 10 extends to the left side of the L-shaped clamping seat 6 and is fixedly connected with a moving rod 9, the L-shaped clamping seat 6 is sleeved on the clamping rod 10 in a sliding manner, a ball 11 is nested at the right end of the clamping rod 10, and the ball 11 is matched with the inclined surface on the clamping block 7, a pull ring is fixedly connected to the left side of the moving rod 9, a rectangular groove 14 is formed in the inner wall of the left side of the L-shaped clamping seat 6, a rectangular block 12 is sleeved in the rectangular groove 14 in a sliding mode, a positioning rod 17 is fixedly connected to the left side of the rectangular block 12, the left end of the positioning rod 17 extends out of the L-shaped clamping seat 6 and is fixedly connected with the right side of the moving rod 9, a first spring 13 is fixedly connected between the left side of the rectangular block 12 and the inner wall of the left side of the rectangular groove 14, and the first spring 13 is movably sleeved on the positioning rod 17;

buffer gear includes that fixed cover establishes the annular fagging 15 on intubate 1, and annular fagging 15 is located the below of plectane 2, the equal fixedly connected with guide bar 16 in bottom both sides of plectane 2, and the slip cover of annular fagging 15 is established on two guide bars 16, two buffer spring 18 of fixedly connected with between the bottom of plectane 2 and the top of annular fagging 15, and the buffer spring 18 movable sleeve establishes on the guide bar 16 that corresponds, the utility model relates to a rationally, easy and simple to handle, be convenient for shelter from the buffering protection to the oil well pipe fast when workover, can effectively reduce the phenomenon that high altitude junk or other objects fall into the oil well intraductal, and be convenient for keep off backplate 4 to the arc fast and open or close the lock solid, provide convenience for personnel's temporary opening maintenance work, be favorable to the use.

In the utility model, a first round hole is arranged at the top of the circular plate 2, the inner wall of the first round hole is connected with the outer side of the inserting tube 1 in a sliding way, the top of the clamping block 7 is movably contacted with the inner wall at the top of the L-shaped clamping seat 6, a second round hole is arranged on the inner wall at the left side of the L-shaped clamping seat 6, the inner wall of the second round hole is connected with the outer side of the clamping rod 10 in a sliding way, a third round hole is arranged on the inner wall at the left side of the rectangular groove 14, the inner wall of the third round hole is connected with the outer side of the positioning rod 17 in a sliding way, both sides at the top of the annular supporting plate 15 are provided with fourth round holes, the inner wall of the fourth round hole is connected with the outer side of the corresponding guide rod 16 in a sliding way, a limiting groove with an opening at the bottom is arranged on the inner wall at the right side of the fourth round hole, a limiting block is fixedly connected with the bottom at the right side of the guide rod 16, and is connected with the corresponding limiting groove in a sliding way, the utility model has reasonable design and simple and convenient operation, the oil well pipe is conveniently and quickly shielded and buffered for protection during workover operation, the phenomenon that high-altitude falling objects or other objects fall into the oil well pipe can be effectively reduced, the arc-shaped guard plate 4 is conveniently and quickly opened or closed for locking, convenience is provided for personnel to temporarily open and repair, and the use is facilitated.

The working principle is as follows: when the device is used, when a sucker rod in an oil well pipe is pulled out for maintenance, the top of the oil well pipe is in an open state, the inserting pipe 1 is inserted into the oil well pipe until the bottom of the annular supporting plate 15 is contacted with the top of the oil well pipe, the effect of positioning the device can be achieved by inserting the inserting pipe 1 into the oil well pipe, the phenomenon that the device transversely displaces and drops due to factors such as mistaken collision is avoided, the arc-shaped blocking and protecting plate 4 can block the top end of the inserting pipe 1 to block and block the oil well pipe and prevent objects from dropping, when high-altitude falling objects or objects fall onto the top of the arc-shaped blocking and protecting plate 4, the arc-shaped blocking and protecting plate 4 bears the impact force of dropping objects and moves downwards, the arc-shaped blocking and protecting plate 4 drives the circular plate 2 to slide downwards on the inserting pipe 1 through the connecting seat 3, and the circular plate 2 drives the two guide rods 16 to respectively slide downwards in the corresponding fourth circular holes, the circular plate 2 compresses the two buffer springs 18 downwards, and under the elastic force action of the buffer springs 18, the effect of buffering and unloading the impact force of a falling object can be achieved, the damage risk of the arc-shaped baffle plate 4 is reduced, the protection effect is further improved, the oil well pipe is shielded and buffered and protected conveniently during workover operation, and the risk of falling of the object is reduced;

when the arc-shaped blocking and protecting plate 4 needs to be opened temporarily to overhaul the oil well pipe, the pull ring is pulled leftwards at the moment, the pull ring drives the moving rod 9 to move leftwards, the moving rod 9 drives the rectangular block 12 to compress the first spring 13 leftwards through the positioning rod 17, meanwhile, the moving rod 9 drives the blocking rod 10 to separate from the clamping groove 8 leftwards, the pull ring is pulled upwards to sequentially drive the arc-shaped blocking and protecting plate 4 to rotate upwards and open through the moving rod 9, the blocking rod 10 and the L-shaped clamping seat 6 at the moment, so as to realize temporary unblocking, when the blocking is needed again after overhaul, the arc-shaped blocking and protecting plate 4 is turned downwards to close and close, and is pressed downwards, the arc-shaped blocking and protecting plate 4 drives the L-shaped clamping seat 6 to turn downwards to reset, the L-shaped clamping seat 6 drives the blocking rod 10 to turn downwards, the blocking rod 10 drives the ball 11 to turn downwards to extrude the inclined plane of the blocking block 7, under the extrusion force, the ball 11 moves leftwards along the inclined plane and drives the blocking rod 10 to move leftwards, the clamping rod 10 sequentially passes through the moving rod 9 and the positioning rod 17 to drive the rectangular block 12 to compress the first spring 13 leftwards, when the clamping rod 10 moves downwards to be aligned with the clamping groove 8, the elastic force of the first spring 13 in a compressed state drives the rectangular block 12 to move backwards and reset rightwards, the rectangular block 12 sequentially passes through the positioning rod 17 and the moving rod 9 to drive the clamping rod 10 to be clamped into the clamping groove 8 rightwards, the arc-shaped baffle plate 4 is locked, the arc-shaped baffle plate 4 is conveniently and rapidly opened or closed, convenience is provided for personnel to temporarily open and repair work, the safety rope bolt ring 5 is arranged, the safety rope is conveniently fastened and connected when the personnel are repaired, the personnel fasten and connect the other end of the safety rope with a well repair tool, and the phenomenon that the well repair tool accidentally drops downwards in work can be further avoided.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The underground anti-falling device for workover treatment comprises an insertion pipe (1) and is characterized in that a quick-opening type blocking and protecting mechanism and a buffering mechanism matched with the quick-opening type blocking and protecting mechanism are arranged on the insertion pipe (1).

2. The downhole anti-falling device for well workover treatment according to claim 1, wherein the quick-open type blocking and protecting mechanism comprises a circular plate (2) slidably sleeved on the insertion tube (1), a plurality of safety rope tie rings (5) are fixedly connected to the outer side of the circular plate (2) at equal intervals in an annular shape, a connecting seat (3) is hinged to the right side of the top of the circular plate (2), an arc-shaped blocking and protecting plate (4) is fixedly connected to the top of the connecting seat (3), the arc-shaped blocking and protecting plate (4) is positioned above the insertion tube (1), an L-shaped clamping seat (6) is fixedly connected to one side of the bottom of the arc-shaped blocking and protecting plate (4), a clamping block (7) is fixedly connected to the left side of the top of the circular plate (2), the top of the left side of the clamping block (7) is provided with an inclined plane, a clamping groove (8) with openings at the front side and the rear side is formed in the left side of the clamping block (7), a clamping rod (10) is movably clamped in the clamping groove (8), the left end of the clamping rod (10) extends to the left side of the L-shaped clamping seat (6) and is fixedly connected with a movable rod (9), the L-shaped clamping seat (6) is sleeved on the clamping rod (10) in a sliding way, the right end of the clamping rod (10) is nested with a ball (11), the ball (11) is matched with the inclined plane on the clamping block (7), the left side of the movable rod (9) is fixedly connected with a pull ring, the inner wall of the left side of the L-shaped clamping seat (6) is provided with a rectangular groove (14), a rectangular block (12) is slidably sleeved in the rectangular groove (14), the left side of the rectangular block (12) is fixedly connected with a positioning rod (17), and the left end of the positioning rod (17) extends to the outside of the L-shaped clamping seat (6) and is fixedly connected with the right side of the movable rod (9), a first spring (13) is fixedly connected between the left side of the rectangular block (12) and the inner wall of the left side of the rectangular groove (14), and the first spring (13) is movably sleeved on the positioning rod (17).

3. The device of claim 1, wherein the buffer mechanism comprises a ring-shaped supporting plate (15) fixedly sleeved on the insertion tube (1), the ring-shaped supporting plate (15) is positioned below the circular plate (2), guide rods (16) are fixedly connected to two sides of the bottom of the circular plate (2), the ring-shaped supporting plate (15) is slidably sleeved on the two guide rods (16), two buffer springs (18) are fixedly connected between the bottom of the circular plate (2) and the top of the ring-shaped supporting plate (15), and the buffer springs (18) are movably sleeved on the corresponding guide rods (16).

4. A device as claimed in claim 2, wherein the circular plate (2) is provided with a first circular hole at its top, and the inner wall of the first circular hole is slidably connected to the outer side of the insertion tube (1).

5. A device for preventing objects from falling down in a well for use in workover treatment according to claim 2, wherein the top of the block (7) is in movable contact with the inner wall of the top of the L-shaped block (6).

6. The underground anti-falling device for workover treatment according to claim 2, wherein the inner wall of the left side of the L-shaped clamping seat (6) is provided with a second round hole, and the inner wall of the second round hole is connected with the outer side of the clamping rod (10) in a sliding manner.

7. The underground anti-falling device for well repair operation according to claim 2, wherein a third round hole is opened on the left inner wall of the rectangular groove (14), and the inner wall of the third round hole is connected with the outer side of the positioning rod (17) in a sliding manner.

8. The underground anti-falling device for workover treatment according to claim 3, wherein the top of the annular supporting plate (15) is provided with fourth round holes on both sides, the inner walls of the fourth round holes are slidably connected with the outer sides of the corresponding guide rods (16), the inner wall of the right side of each fourth round hole is provided with a limiting groove with the bottom being provided with an opening, the bottom of the right side of each guide rod (16) is fixedly connected with a limiting block, and the limiting blocks are slidably connected with the corresponding limiting grooves.