CN212837682U

CN212837682U - A packing element subassembly for soluble bridging plug

Info

Publication number: CN212837682U
Application number: CN202021734398.9U
Authority: CN
Inventors: 吴琼; 李运河; 陈雷; 陈当高; 殷翔芝
Original assignee: Jiangsu Ke Feng Petrochemical Machinery Co ltd
Current assignee: Jiangsu Ke Feng Petrochemical Machinery Co ltd
Priority date: 2020-08-14
Filing date: 2020-08-14
Publication date: 2021-03-30
Anticipated expiration: 2030-08-14

Abstract

The utility model relates to a bridging plug technical field just discloses a packing element subassembly for soluble bridging plug, including the center tube, the fixed surface of center tube is connected with down toper clamping ring, the surface of center tube has cup jointed down the inflation slips, the inflation slips is located the top of toper clamping ring down, the packing element body has been cup jointed on the surface of center tube, the packing element body is located the top of inflation slips down, the surface of center tube has cup jointed the inflation slips. The utility model discloses a set up support ring, locking mechanism and draw-in groove, wherein, locking mechanism goes up the fixture block and is trapezoidal piece to inclined plane on the fixture block and the inner wall of draw-in groove, when end cap nut corotation, through the inclined plane on the fixture block, can make the fixture block shift out from the draw-in groove, and then make end cap nut ability corotation, when end cap nut reversal, through the cooperation of fixture block and draw-in groove, can die the end cap nut card, and then make end cap nut have reverse locking function.

Description

A packing element subassembly for soluble bridging plug

Technical Field

The utility model relates to a bridging plug technical field especially relates to a packing element subassembly for soluble bridging plug.

Background

At present, packing element subassembly on the soluble bridging plug, mostly by toper clamping ring down, lower inflation slips, the packing element, go up the inflation slips, go up toper clamping ring and end cover nut and constitute, when the installation bridging plug, through rotating end cover nut, make inflation slips and last inflation slips extrude the packing element down, then make the external diameter increase of packing element, and then fix the bridging plug on oil pipe through the packing element, nevertheless because be threaded connection between end cover nut and the bridging plug, in the use, end cover nut often can take place to become flexible because of the vibration, and then lead to the clearance increase between packing element and the oil pipe easily, make the bridging plug take place to become flexible.

SUMMERY OF THE UTILITY MODEL

The purpose of the utility model is to solve the shortcoming that exists among the prior art, if: at present, the packing element subassembly on the soluble bridging plug is mostly by toper clamping ring down, the slips that expands down, the packing element, go up the slip that expands, go up toper clamping ring and end cover nut and constitute, because be threaded connection between end cover nut and the bridging plug, in the use, end cover nut often can take place to become flexible because of the vibration, and then leads to the clearance increase between packing element and the oil pipe easily, makes the bridging plug take place to become flexible, and the packing element subassembly that is used for soluble bridging plug who provides.

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

the utility model provides a packing element subassembly for soluble bridging plug, includes the center tube, the toper clamping ring under the fixed surface of center tube is connected with, the surface of center tube has cup jointed down the inflation slips, the inflation slips is located the top of toper clamping ring down, the packing element body has been cup jointed on the surface of center tube, the packing element body is located the top of inflation slips down, the surface of center tube has cup jointed the inflation slips, it is located the top of packing element body to go up the inflation slips, the surface of center tube has cup jointed last toper clamping ring, it is located the top of inflation slips to go up the toper clamping ring, the surface threaded connection of center tube has the end cover nut, the support ring has been cup jointed on the surface of end cover nut.

First through-hole has all been seted up to both sides around the support ring, the inner wall of first through-hole is provided with fixing bolt, thread groove has all been seted up to both sides around end cap nut, thread groove's inner wall and fixing bolt's surface threaded connection, the second through-hole has all been seted up to the left and right sides of support ring, the inner wall fixedly connected with locking mechanism of second through-hole, the third through-hole has all been seted up to end cap nut's the left and right sides, the draw-in groove has been seted up on the surface of center tube, the inner wall of draw-in groove and the inner wall of third through-hole all with locking.

Preferably, the locking mechanism comprises a U-shaped support frame, the surface of the U-shaped support frame is fixedly connected with the inner wall of the second through hole, a sliding block is connected to the surface of the U-shaped support frame in a sliding mode, a spring is fixedly connected to the surface of the sliding block and the inner wall of the U-shaped support frame, a groove is formed in one side, close to the central tube, of the sliding block, rotating shafts are fixedly connected to the front side and the rear side of the inner wall of the groove respectively, a clamping block is connected to the surface of each rotating shaft and the inner wall of the groove in a sliding mode, and the inner wall of the clamping groove.

Preferably, the clamping block is a trapezoidal block, and one side of the clamping block close to the central tube is an inclined plane.

Preferably, the maximum distance between the support ring and the sliding block is greater than the length of the clamping block.

Preferably, the number of the locking mechanisms is two, and the two locking mechanisms are symmetrically distributed by taking the central pipe as the center.

Preferably, the support ring is an octagonal ring, and the center of the support ring coincides with the center of the end cap nut.

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

(1) the utility model discloses a set up the support ring, locking mechanism and draw-in groove, wherein, locking mechanism goes up the fixture block and is trapezoidal piece, and the inclined plane on the fixture block and the inner wall of draw-in groove, when end cap nut corotation, through the inclined plane on the fixture block, can make the fixture block shift out from the draw-in groove, and then make end cap nut ability corotation, when end cap nut reversal, cooperation through fixture block and draw-in groove, can die the end cap nut card, and then make end cap nut have reverse locking function, prevent to fix the center tube through the packing element body in the oil pipe after, end cap nut takes place not hard up because of the vibration, lead to the clearance increase between packing element body and the oil pipe, thereby make this bridging plug take place not hard.

(2) The utility model discloses a cooperation of fixing bolt and thread groove fixes the support ring on end cover nut, and then when dismantling the support ring, earlier separates fixing bolt and support ring, and then slider about the pulling shifts out the fixture block from the third through hole, at this moment, can dismantle the support ring from end cover nut, and then makes the locking mechanism on the support ring, can continue to use after end cover nut damages.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of the point A in FIG. 1 according to the present invention;

FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1 in accordance with the present invention;

fig. 4 is an enlarged view of the point C in fig. 3 according to the present invention.

In the figure: 1. a central tube; 2. a lower conical compression ring; 3. a lower expansion slip; 4. a rubber cylinder body; 5. an upper expansion slip; 6. an upper conical compression ring; 7. an end cap nut; 8. a support ring; 9. a first through hole; 10. fixing the bolt; 11. a thread groove; 12. a second through hole; 13. a locking mechanism; 131. a U-shaped support frame; 132. a slider; 133. a spring; 134. a groove; 135. a rotating shaft; 136. a clamping block; 14. a third through hole; 15. a clamping groove.

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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-4, a rubber cylinder assembly for a soluble bridge plug comprises a central tube 1, a lower conical press ring 2 is fixedly connected to the surface of the central tube 1, a lower expansion slip 3 is sleeved on the surface of the central tube 1, the lower expansion slip 3 is positioned above the lower conical press ring 2, a rubber cylinder body 4 is sleeved on the surface of the central tube 1, the rubber cylinder body 4 is positioned above the lower expansion slip 3, an upper expansion slip 5 is sleeved on the surface of the central tube 1, the upper expansion slip 5 is positioned above the rubber cylinder body 4, an upper conical press ring 6 is sleeved on the surface of the central tube 1, the upper conical press ring 6 is positioned above the upper expansion slip 5, an end cap nut 7 is connected to the surface of the central tube 1 through a thread, when the end cap nut 7 rotates forwards, the end cap nut 7 moves downwards, when the end cap nut 7 rotates backwards, the end cap nut 7 moves upwards, a support ring 8 is sleeved on, the support ring 8 is an octagonal ring, and the center of the support ring 8 coincides with the center of the end cap nut 7.

First through-hole 9 has all been seted up to both sides around the support ring 8, the inner wall of first through-hole 9 is provided with fixing bolt 10, thread groove 11 has all been seted up to both sides around end cap nut 7, the inner wall of thread groove 11 and fixing bolt 10's surperficial threaded connection, cooperation through fixing bolt 10 and thread groove 11, fix support ring 8 on end cap nut 7, second through-hole 12 has all been seted up to the left and right sides of support ring 8, the inner wall fixedly connected with locking mechanism 13 of second through-hole 12, the quantity of locking mechanism 13 is two, and two locking mechanism 13 use center tube 1 to be the symmetric distribution as the center, third through-hole 14 has all been seted up to end cap nut 7's the left and right sides, draw-in groove 15 has been seted up on the surface of center tube 1, the inner wall of draw-in groove 15 and the inner wall of third.

The locking mechanism 13 includes a U-shaped support frame 131, the surface of the U-shaped support frame 131 is fixedly connected with the inner wall of the second through hole 12, the surface of the U-shaped support frame 131 is slidably connected with a slider 132, the U-shaped support frame 131 limits the slider 132, the slider 132 can only move left and right through the U-shaped support frame 131, the surface of the slider 132 and the inner wall of the U-shaped support frame 131 are fixedly connected with a spring 133, the spring 133 pushes the slider 132, a latch 136 is tightly contacted with the latch slot 15 through the spring 133, one side of the slider 132 close to the central tube 1 is provided with a groove 134, the front and rear sides of the inner wall of the groove 134 are fixedly connected with a rotating shaft 135, the surface of the rotating shaft 135 and the inner wall of the groove 134 are both slidably connected with a latch 136, the latch 136 can rotate around the rotating shaft 135, and when the latch 136 is moved out from the third through hole 14, and then the user can conveniently detach the support ring 8 from the end cap nut 7, the fixture block 136 is a trapezoidal block, one side of the fixture block 136 close to the central tube 1 is an inclined plane, the inner wall of the clamping groove 15 and the inner wall of the third through hole 14 are both in contact with the surface of the fixture block 136, the maximum distance between the support ring 8 and the slider 132 is greater than the length of the fixture block 136, when the support ring 8 is detached, the fixing bolt 10 is firstly separated from the support ring 8, then the left slider 132 and the right slider 132 are pulled, the fixture block 136 is moved out from the third through hole 14, at this moment, the support ring 8 can be detached from the end cap nut 7, and then the locking mechanism 13 on the support ring 8 can be continuously used after.

The utility model discloses in, when the user used the device, insert this bridging plug to in the oil pipe, then corotation end cover nut 7, make and go up toper clamping ring 6 downstream, this moment, extrude through lower inflation slips 3 and last inflation slips 5, make the external diameter increase of packing element body 4, and then fix this bridging plug in the oil pipe through packing element body 4, and simultaneously, insert in clamping groove 15 with fixture block 136, cooperation through fixture block 136 and draw-in groove 15, can die end cover nut 7 card, and then make the unable reversal of end cover nut 7, when needs reversal end cover nut 7, slider 132 about the pulling, shift out fixture block 136 from draw-in groove 15, can make end cover nut 7 can reverse.

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.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Claims

1. The utility model provides a packing element subassembly for soluble bridging plug, includes center tube (1), its characterized in that, the fixed surface of center tube (1) is connected with toper clamping ring (2) down, the surface of center tube (1) has cup jointed down inflation slips (3), inflation slips (3) are located the top of toper clamping ring (2) down, the surface of center tube (1) has cup jointed packing element body (4), packing element body (4) are located the top of inflation slips (3) down, the surface of center tube (1) has cup jointed last inflation slips (5), it is located the top of packing element body (4) to go up inflation slips (5), the surface of center tube (1) has cup jointed last toper clamping ring (6), it is located the top of last inflation slips (5) to go up toper clamping ring (6), the surface threaded connection of center tube (1) has end cover nut (7), the surface of the end cover nut (7) is sleeved with a support ring (8);

first through-hole (9) have all been seted up to both sides around support ring (8), the inner wall of first through-hole (9) is provided with fixing bolt (10), thread groove (11) have all been seted up to both sides around end cover nut (7), the surface threaded connection of the inner wall of thread groove (11) and fixing bolt (10), second through-hole (12) have all been seted up to the left and right sides of support ring (8), the inner wall fixedly connected with locking mechanism (13) of second through-hole (12), third through-hole (14) have all been seted up to the left and right sides of end cover nut (7), draw-in groove (15) have been seted up on the surface of center tube (1), the inner wall of draw-in groove (15) and the inner wall of third through-hole (14) all with the surface contact of locking mechanism (13).

2. The cartridge assembly of claim 1, wherein the cartridge assembly further comprises a second seal member, the locking mechanism (13) comprises a U-shaped supporting frame (131), the surface of the U-shaped supporting frame (131) is fixedly connected with the inner wall of the second through hole (12), the surface of the U-shaped supporting frame (131) is connected with a sliding block (132) in a sliding way, the surface of the sliding block (132) and the inner wall of the U-shaped supporting frame (131) are fixedly connected with a spring (133), one side of the sliding block (132) close to the central pipe (1) is provided with a groove (134), the front side and the rear side of the inner wall of the groove (134) are fixedly connected with rotating shafts (135), the surface of the rotating shaft (135) and the inner wall of the groove (134) are both connected with a clamping block (136) in a sliding way, the inner wall of the clamping groove (15) and the inner wall of the third through hole (14) are in contact with the surface of the clamping block (136).

3. The cartridge assembly of claim 2, wherein the fixture block (136) is a trapezoidal block, and the side of the fixture block (136) close to the central tube (1) is a slope.

4. The cartridge assembly for a soluble bridge plug according to claim 2, wherein the maximum distance between the support ring (8) and the slider (132) is greater than the length of the latch (136).

5. The cartridge assembly according to claim 1, wherein the number of the locking mechanisms (13) is two, and the two locking mechanisms (13) are symmetrically distributed around the central pipe (1).

6. A packing element for a dissolvable bridge plug according to claim 1, wherein said support ring (8) is an octagonal ring and the center of the support ring (8) coincides with the center of the end cap nut (7).