CN212898404U

CN212898404U - Plug throwing device

Info

Publication number: CN212898404U
Application number: CN202021339508.1U
Authority: CN
Inventors: 刘希明
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-09
Filing date: 2020-07-09
Publication date: 2021-04-06
Anticipated expiration: 2030-07-09

Abstract

A plug throwing device comprises a tubular plug throwing device main body, a sliding block is arranged on the outer side wall of the plug throwing device main body, the lower end of the plug throwing device main body is connected with an elastic sealing element, the lower end of the elastic sealing element is connected with an anti-skid spreading element, the upper end of the anti-skid spreading part penetrates through the elastic sealing part and then extends into the lower end of the inner cavity of the plug throwing device main body, the inner cavity of the plug throwing device main body is provided with a clamping block assembly which can be clamped with the side wall of the upper part of the anti-skid spreading part, when the plug throwing device is thrown into the oil pipe and the lower end of the anti-skid strutting piece is contacted with the oil pump in the inner cavity of the oil pipe, the plug throwing device main body is pressed downwards by external force, the elastic sealing element is compressed and expanded under the action of the external force until the oil pipe is completely sealed, when the external force is removed, the plug throwing device main body is clamped in the inner cavity of the oil pipe through the sliding block, and the plug throwing device main body pressed down is fixedly clamped with the anti-skidding opening piece through the clamping block assembly. The utility model discloses throw stifled ware structural design simple ingenious, the flexible operation is simple, and easy change, sealed effectual and security performance are good.

Description

Plug throwing device

Technical Field

The utility model relates to a coal bed gas workover shutoff technical field, concretely says so and relates to throw stifled ware.

Background

At present, the coal bed gas well repairing operation is still conventional well repairing operation, and during the pressurized well repairing operation, along with continuous lifting of an oil pipe, the liquid level in the oil pipe can be reduced, when the liquid pressure can not press gas, the gas can leak out through the oil pipe (or meet other special conditions, when the gas leaks in the oil pipe), and at the moment, corresponding sealing operation needs to be carried out in the oil pipe.

Therefore, the present inventors have made extensive studies to design a plug feeder capable of solving the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a throw stifled ware, its structural design is simple ingenious, and the flexible operation is simple, easily changes, sealed effectual and the security performance is good.

In order to realize the proposal, the utility model provides a plug throwing device which comprises a tubular plug throwing device main body, the outer side wall of the plug throwing device main body is provided with a sliding block, the lower end of the plug throwing device main body is connected with an elastic sealing element, the lower end of the elastic sealing element is connected with the anti-skid spreading element, the upper end of the anti-skid spreading element penetrates through the elastic sealing element and then extends into the inner cavity of the plug throwing device main body, a clamping block component which can be clamped with the upper part of the anti-skid opening part is arranged in the inner cavity of the plug throwing device main body, when the plug throwing device is thrown into the oil pipe and the lower end of the anti-skid strutting piece is contacted with the oil pump in the inner cavity of the oil pipe, the plug throwing device body is pressed downwards by external force to compress and prop open the elastic sealing element until the oil pipe is completely sealed, when the external force is removed, the plug throwing device main body is clamped in the inner cavity of the oil pipe through the sliding block, and the plug throwing device main body pressed down is fixedly clamped with the anti-skidding opening piece through the clamping block assembly.

The utility model discloses throw stifled ware, wherein elastic sealing element is the toper seal cover that rubber materials made, the upper end of seal cover with the lower extreme of throwing stifled ware main part closely cup joints, the lower extreme of seal cover with the upper end of antiskid opening piece closely cup joints.

The utility model discloses throw stifled ware, wherein the slider is trapezoidal piece, throw and be provided with the slider groove on the lateral wall of stifled ware main part, the upper wall thickness in slider groove is greater than lower wall thickness, the shape in slider groove with the slider shape matches.

The utility model discloses throw stifled ware, wherein the slider is made by the hard metal material.

The utility model discloses throw stifled ware, wherein the fixture block subassembly including set up in throw the trompil of stifled ware main part lateral wall lower part, the fixture block has been placed on the trompil, the fixture block is fixed in through the fastener on the trompil, the fixture block card in throw stifled ware main part with between the antiskid strutting piece.

The utility model discloses throw stifled ware, wherein the fastener adopts the rubber tape, the rubber tape ligature is in the surface a week at the position of throwing stifled ware main part at fixture block place.

The utility model discloses throw stifled ware, wherein the fixture block is trapezoidal piece.

The utility model discloses throw stifled ware, wherein antiskid strutting piece includes that the cylindricality struts a main part, the lower extreme that struts a main part is equipped with the little conical foundation of the big lower extreme in upper end, the upper end that struts a main part is equipped with the big toper buffering portion of the little lower extreme in upper end, the upper end of buffering portion is equipped with the cylindricality connecting portion, the upper portion surface of connecting portion is equipped with the annular stopping dovetail groove that thread groove or a plurality of intervals set up, the fixture block subassembly card end in throw stifled ware main part with between thread groove or the stopping dovetail groove.

After the scheme is adopted, the utility model discloses throw stifled utensil and have following beneficial effect:

1. has stronger flexibility and easy operability: the plug throwing device can be directly thrown into the oil pipe, and can directly slide to a proper position (a position directly contacted with an oil pump) due to reasonable size design, and then the plug throwing device can be pressed downwards by using an external force by adopting a sucker rod, so that the operation is simple and very flexible;

2. easy replaceability: the parts of the plug throwing device are all detachable structures (such as a sliding block, a clamping block component, an elastic sealing element and the like), and can be directly replaced if damaged, so that the plug throwing device is very convenient;

3. the sealing effect is good: the elastic sealing element of the plug throwing device is sealed by a conical rubber sleeve, and a clamping block assembly is clamped and fixed, so that the sealing effect is continuously kept in a stable and good state;

4. the safety performance is good: should throw stifled ware and adopt slider and oil pipe to block, prop through anti-skidding distraction piece, guarantee that should throw stifled ware can be stabilized in a position, be unlikely to the departure, the slider is very hard materials such as iron or steel moreover, can guarantee that the slider is unlikely to damage, has guaranteed the security performance that should throw stifled ware.

Drawings

Fig. 1 is a schematic view of the three-dimensional structure of the plug throwing device of the present invention;

fig. 2 is a schematic view of a three-dimensional structure of a sliding block of the plug throwing device of the utility model;

fig. 3 is a schematic three-dimensional structure view of the anti-slip spreader of the plug throwing device of the present invention;

fig. 4 is a schematic view of the three-dimensional structure of the fixture block assembly of the plug-in device of the present invention.

Detailed Description

As figure 1, the utility model discloses throw stifled ware and include that the tubulose throws stifled ware main part 1, throw and be provided with slider groove 2 on the lateral wall of stifled ware main part 1, placed slider 3 in the slider groove 2. Referring to fig. 2, the slider 3 is a trapezoidal block and made of a hard metal material, such as iron or steel, the shape of the slider groove 2 matches the shape of the slider 3, and the thickness of the upper wall of the slider groove 3 is greater than that of the lower wall.

Throw the lower extreme and the elastic sealing element sealing connection of stifled ware main part 1, this embodiment elastic sealing element is the toper seal cover 4 that rubber materials made, and the upper end of this seal cover 4 closely cup joints with the lower extreme of throwing stifled ware main part 1, and the lower extreme of seal cover 4 closely cup joints with the upper end of anti-skidding piece 5 that struts.

Referring to fig. 3, the anti-slip spreader 5 includes a cylindrical spreader body 6, a conical base 7 with a large upper end and a small lower end is disposed at the lower end of the spreader body 6, and the lower end of the base 7 is a conical tip. The upper end of the distraction piece main body 5 is provided with a conical buffer part 8 with a small upper end and a large lower end, the upper end of the buffer part 8 is provided with a cylindrical connecting part 9, and the upper outer surface of the connecting part 9 is provided with a plurality of annular backstop trapezoidal grooves 10 arranged at intervals and can also be thread grooves.

The connecting part 9 of the anti-skid spreader 5 passes through the inner cavity of the sealing sleeve 4 and then extends into the lower end of the inner cavity of the plug throwing device main body 1, and the lower end of the sealing sleeve 4 is sleeved with the lower part of the connecting part 9.

The inner cavity of the plug throwing device main body 1 is provided with a fixture block assembly which can be clamped with the stopping trapezoidal groove 10 on the upper part of the connecting part 9 of the anti-skid strutting piece 5, namely the fixture block assembly is clamped between the plug throwing device main body 1 and the stopping trapezoidal groove 10.

The fixture block assembly comprises an opening 11 arranged at the lower part of the side wall of the plug-in device main body 1, and the opening 11 is a rectangular hole. A latch 12 is disposed on the opening 11, and as shown in fig. 4, the latch 12 of this embodiment is a trapezoidal block. The fixture block 12 is fixed on the opening 11 through a fastener, the fastener of the embodiment adopts a rubber belt 13, and the rubber belt 13 is bound on the outer surface of the part of the plug feeder main body 1 where the fixture block 12 is located. The clamping block 12 is clamped between the plug throwing device body 1 and the backstop trapezoidal groove 10 of the anti-skid strutting piece.

During the use, will this the utility model discloses throw stifled ware and drop into in the oil pipe, should throw stifled ware and can automatic gliding, throw stifled ware gliding in-process because slider 3 places in take-up housing 2, and because slider 3 is the trapezoidal block structure, consequently slider 3 can be hidden in take-up housing 2 and does not influence and throw the holistic gliding of stifled ware, and fixture block 12 is fixed with fixture block 12 through rubber tape 13 in trompil 11 and also can not roll-off trompil 11. When the base 7 of the anti-skid strut 5 slides downwards to be in contact with an oil pump in an oil pipe, the plug throwing device body 1 is continuously pressed downwards by using external force, namely the sucker rod, and the sealing sleeve 4 made of the conical rubber material is stretched under the action of the anti-skid strut 5 until the sealing sleeve 4 completely seals the oil pipe. And in the course of utilizing the sucker rod to continue to press this and throwing stifled ware main part 1, antiskid spreader 5 is motionless all the time, and throw stifled ware main part 1 and slide down certain degree of depth every time, fixture block 12 on it will block on the stopping dovetail groove 10 on antiskid spreader 5 upper portion, make throwing stifled ware main part 1 after pushing down and antiskid spreader 5 block fixedly, can prevent that conical seal cover 4 from kick-backing (losing sealed effect) this moment, when not pressing downwards and throwing stifled ware main part 1, slider 3 can slide out of slider groove 2 under the action of gravity, can make slider 3 block between oil pipe and throwing stifled ware like this, if this throwing stifled ware is upwards strikeed to gas, this slider 3 can block this and throw the stifled ware, do not let this throw stifled ware upwards slide, thereby realize the effect of sealed oil pipe.

The utility model can be directly put into the oil pipe, and because the size design is reasonable, the plug throwing device can directly slide to a proper position (a position directly contacting with an oil pump), and then the plug throwing device can be pressed downwards by using an oil pumping rod by external force, thus the operation is simple and flexible; the parts of the plug throwing device are all detachable structures (such as a sliding block, a clamping block component, an elastic sealing element and the like), and can be directly replaced if damaged, so that the plug throwing device is very convenient; the elastic sealing element of the plug throwing device is sealed by a conical rubber sleeve 4, and a clamping block assembly is clamped and fixed, so that the sealing effect is continuously kept in a stable and good state; should throw stifled ware and adopt slider 3 and oil pipe to block, prop through anti-skidding spreader 5, guarantee that should throw stifled ware and can stabilize in a position, be unlikely to the departure, slider 3 is very hard materials such as iron or steel in addition, can guarantee that the slider is unlikely to damage, has guaranteed the security performance of should throwing stifled ware.

The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and various modifications and improvements made by the technical solutions of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the design spirit of the present invention.

Claims

1. A plug throwing device is characterized by comprising a tubular plug throwing device main body, a sliding block is placed on the outer side wall of the plug throwing device main body, the lower end of the plug throwing device main body is connected with an elastic sealing element, the lower end of the elastic sealing element is connected with an anti-skid spreading element, the upper end of the anti-skid spreading piece penetrates through the elastic sealing piece and then extends into the inner cavity of the plug throwing device main body, a clamping block component which can be clamped with the upper part of the anti-skid opening part is arranged in the inner cavity of the plug throwing device main body, when the plug throwing device is thrown into the oil pipe and the lower end of the anti-skid strutting piece is contacted with the oil pump in the inner cavity of the oil pipe, the plug throwing device body is pressed downwards by external force to compress and prop open the elastic sealing element until the oil pipe is completely sealed, when the external force is removed, the plug throwing device main body is clamped in the inner cavity of the oil pipe through the sliding block, and the plug throwing device main body pressed down is fixedly clamped with the anti-skidding opening piece through the clamping block assembly.

2. The plug throwing device according to claim 1, wherein the elastic sealing element is a conical sealing sleeve made of rubber material, the upper end of the sealing sleeve is tightly sleeved with the lower end of the plug throwing device body, and the lower end of the sealing sleeve is tightly sleeved with the upper end of the anti-skid spreading element.

3. The plug throwing device of claim 1, wherein the sliding block is a trapezoidal block, a sliding block groove is arranged on the outer side wall of the plug throwing device main body, the upper wall thickness of the sliding block groove is larger than the lower wall thickness, and the shape of the sliding block groove is matched with the shape of the sliding block.

4. The projectile block of claim 3, wherein said slider is made of a hard metal material.

5. The plug throwing device according to claim 1, wherein the fixture block assembly comprises an opening arranged at the lower part of the side wall of the plug throwing device body, a fixture block is placed on the opening, the fixture block is fixed on the opening through a fastener, and the fixture block is clamped between the plug throwing device body and the anti-skid spreading member.

6. The plug throwing device of claim 5, wherein the fastening member is a rubber band which is bound on the outer surface of the plug throwing device main body where the clamping block is located for a circle.

7. The plug of claim 5, wherein the cartridge is a trapezoidal block.

8. The plug throwing device according to claim 1, wherein the anti-slip spreader comprises a cylindrical spreader body, the lower end of the spreader body is provided with a conical base with a large upper end and a small lower end, the upper end of the spreader body is provided with a conical buffer part with a small upper end and a large lower end, the upper end of the buffer part is provided with a cylindrical connecting part, the outer surface of the upper part of the connecting part is provided with a thread groove or a plurality of annular anti-return trapezoidal grooves arranged at intervals, and the fixture block assembly is clamped between the plug throwing device body and the thread groove or the anti-return trapezoidal grooves.