CN218644254U

CN218644254U - Stabilize fracturing well head structure of dismouting

Info

Publication number: CN218644254U
Application number: CN202223295643.2U
Authority: CN
Inventors: 段存东; 刘成武
Original assignee: Puyang Zhengyi Hengye Machinery Electronics Co ltd
Current assignee: Puyang Zhengyi Hengye Machinery Electronics Co ltd
Priority date: 2022-12-09
Filing date: 2022-12-09
Publication date: 2023-03-17
Anticipated expiration: 2032-12-09

Abstract

The utility model discloses a stabilize fracturing well head structure of dismouting belongs to oil fracturing well head technical field, including last connecting seat, last conduction pipe, lower connecting seat, conduction pipe down, be provided with down between connecting seat and the last connecting seat just to tear mechanism open, just tear mechanism open and include the worm, the worm rotates the inside of connecting the connecting seat under, the outside transmission of worm is connected with the worm wheel, the outside coaxial fixedly connected with gear of worm wheel, the surface toothing of gear is connected with the rack, the top of rack is rotated and is connected with the gangbar, go up the medial surface of connecting seat and seted up the inserting groove, the medial surface of inserting groove is pegged graft and is had the grafting piece. Through just tearing open the use of mechanism, can be so that installation between each connecting seat of fracturing well head, dismantlement process more simple and convenient, and can dismantle it without the help of extra instrument, be favorable to going on of fracturing well head maintenance work.

Description

Stabilize fracturing well head structure of dismouting

Technical Field

The utility model relates to an oil fracturing well head technical field specifically is a stabilize fracturing well head structure of dismouting.

Background

The wellhead equipment is composed of pipe head and blowout preventer stack, etc. and is used for controlling pressure and direction of gas and liquid fluids, including oil production tree, etc. the wellhead equipment is installed in the well head for petroleum and natural gas drilling, and is a device for hanging casing pipe and oil pipe and sealing oil pipe, casing pipe and annular space of every layer of casing pipe, and is generally composed of casing head, oil pipe head and blowout preventer stack. At the in-process of oil well exploitation, fracturing wellhead assembly local breaks down at that time or all can dismantle fracturing wellhead assembly when regularly maintaining, but present more wellhead assembly's connection structure is all loaded down with trivial details very, need use a large amount of bolts and other accessories to mutually support and connect fixedly to the connecting seat on the component part, make the dismantlement installation process between each part that fracturing wellhead assembly constitutes comparatively troublesome, be unfavorable for going on of follow-up fracturing wellhead assembly maintenance work.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a stabilize fracturing well head structure of dismouting to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a stabilize fracturing well head structure of dismouting, includes the connecting seat, goes up the conduction pipe, lower connecting seat, conduction pipe down, be provided with down between connecting seat and the last connecting seat just tear mechanism open, just tear mechanism open and include the worm, the worm rotates the inside of connecting seat under, the outside transmission of worm is connected with the worm wheel, the coaxial fixedly connected with gear in outside of worm wheel, the surface toothing of gear is connected with the rack, the top of rack is rotated and is connected with the gangbar, go up the medial surface of connecting seat and seted up the inserting groove, the medial surface of inserting groove is pegged graft and is had the grafting piece, communicating cavity has been seted up with the inside of connecting seat down to the grafting piece, the guide way has been seted up to the medial surface of grafting piece upper cavity, the medial surface sliding connection of guide way has the fixed block, the medial surface of going up the connecting seat has seted up the fixed slot.

As a further aspect of the present invention: the hand wheel is fixedly connected to the end portion, located outside the lower connecting seat, of the worm, and an operator can conveniently rotate the worm.

As a further aspect of the present invention: the worm wheel, the rack, the linkage rod and the gear are all arranged inside the cavity.

As a further aspect of the present invention: the worm wheel is rotatably connected with the inner side face of the cavity, the rack is slidably connected with the inner side face of the cavity, so that the rack can stably move up and down under the matched extrusion of the gear and only can move up and down in a reciprocating mode, and a cavity for accommodating the rack is formed in the bottom of the cavity.

As the utility model discloses further scheme again: the upper end and the lower end of the linkage rod are respectively connected with the outer surfaces of the fixed block and the rack in a rotating mode, when the rack moves to drive one end of the linkage rod to move up and down, the other end of the linkage rod can drive the fixed block to move in the horizontal direction, and the inserting block is fixedly installed on the top surface of the lower connecting seat.

As a further aspect of the present invention: the inserting groove is communicated with the fixing groove, the size and the shape of the inserting groove correspond to those of the inserting block, the size and the shape of the fixing block correspond to those of the fixing groove, the inserting block can be well attached to the inner wall of the inserting groove after being inserted into the inserting groove, and the fixing block can be attached to the inner wall of the fixing groove after entering the fixing groove.

As a further aspect of the present invention: the number of the conveniently-disassembled mechanisms is four, the four conveniently-disassembled mechanisms are distributed in the lower connecting seat at equal angles, and the upper connecting seat and the lower connecting seat can be stably connected.

This stabilize fracturing well head structure of dismouting, through just tearing open the use of mechanism, can be so that installation, the dismantlement process between each connecting seat of fracturing well head more simple and convenient, and can dismantle it without the help of extra instrument, be favorable to going on of fracturing well head maintenance work.

Drawings

FIG. 1 is a schematic view of a connection structure between an upper connection seat and a lower connection seat of the present invention;

FIG. 2 is a partial cross-sectional view of the present invention;

FIG. 3 is a schematic diagram illustrating a connection structure of a portion of the structure shown in FIG. 2 according to the present invention;

FIG. 4 is an enlarged schematic view of the structure at A in FIG. 3 according to the present invention;

fig. 5 is an enlarged schematic view of the structure at B in fig. 3 according to the present invention.

The correspondence between the labels of the various figures in the drawing and the names of the components is as follows:

1. an upper connecting seat; 2. an upper conduction pipe; 3. a lower connecting seat; 4. a lower conduction pipe; 5. a convenient disassembly mechanism; 51. a worm; 52. a worm gear; 53. a gear; 54. a rack; 55. a linkage rod; 56. inserting grooves; 57. an insertion block; 58. a cavity; 59. a guide groove; 510. a fixed block; 511. fixing grooves; 512. hand wheel.

Detailed Description

Please refer to fig. 1 to 5: the utility model provides a stabilize fracturing well head structure of dismouting, including last connecting seat 1, go up conduction pipe 2, lower connecting seat 3, conduction pipe 4 down, be provided with between lower connecting seat 3 and the last connecting seat 1 and just tear mechanism 5 open, just tear mechanism 5 open includes worm 51, worm 51 rotates the inside of connecting seat 3 down, the outside transmission of worm 51 is connected with worm gear 52, the coaxial fixedly connected with gear 53 in outside of worm gear 52, the surface meshing of gear 53 is connected with rack 54, the top of rack 54 rotates and is connected with gangbar 55, the medial surface of going up connecting seat 1 has seted up inserting groove 56, the medial surface of inserting groove 56 is pegged graft and has been had grafting piece 57, communicating cavity 58 has been seted up with the inside of connecting seat 3 down to grafting piece 57, worm gear 52, rack 54, gangbar 55, gear 53 all sets up the inside at cavity 58, worm gear 52 rotates with the medial surface of cavity 58 to be connected, rack 54 and the medial surface sliding connection of cavity 58, make under gear 53's cooperation is crowded, make rack 54 can steadily reciprocate, and can only go on the up and down, and the bottom of cavity 58 is provided with the cavity 54 and hold the cavity is gone up the cavity.

The inner side surface of the cavity 58 on the inserting block 57 is provided with a guide groove 59, the inner side surface of the guide groove 59 is slidably connected with a fixed block 510, the upper end and the lower end of the linkage rod 55 are respectively rotatably connected with the fixed block 510 and the outer surface of the rack 54, when the rack 54 moves to drive one end of the linkage rod 55 to move up and down, the other end of the linkage rod 55 drives the fixed block 510 to move horizontally, the inserting block 57 is fixedly installed on the top surface of the lower connecting seat 3, the inner side surface of the upper connecting seat 1 is provided with a fixed groove 511, the inserting groove 56 is communicated with the fixed groove 511, the size and the shape of the inserting groove 56 correspond to those of the inserting block 57, the size and the shape of the fixed block 510 correspond to those of the fixed groove 511, the end part of the inserting block 57, which is positioned outside the lower connecting seat 3, is fixedly connected with a hand wheel 512, so that an operator can conveniently rotate the worm 51, the number of the mechanisms 5 is four groups, the worm 510 are distributed in the inner part of the lower connecting seat 3 at equal angles, and can stably connect the upper connecting seat 1 with the lower connecting seat 3.

The working principle is as follows: when disassembly is needed, an operator directly and manually rotates the hand wheel 512, the hand wheel 512 rotates to drive the worm 51 to rotate, the worm 51 rotates to drive the worm wheel 52 to rotate, the worm wheel 52 rotates to drive the gear 53 to rotate, the gear 53 rotates to drive the rack 54 to move downwards, the rack 54 moves downwards to pull the bottom end of the linkage rod 55, as the two ends of the linkage rod 55 are respectively connected with the rack 54 and the fixed block 510 in a rotating manner, and the fixed block 510 can only horizontally reciprocate along the inner wall of the guide groove 59, when the bottom end of the linkage rod 55 moves downwards along with the rack 54, the top end of the linkage rod 55 pulls the fixed block 510, so that the fixed block 510 can move towards one side of the rack 54, the fixed block 510 gradually withdraws from the inside of the fixing groove 511, and when the fixed block 510 completely withdraws from the inside of the fixing groove 511, the fixed block 510 does not limit the movement of the insertion block 57 at the moment, so that the operation can pull the upper connecting seat 1 and the lower connecting seat 3 in opposite directions, so that the insertion block 57 withdraws from the inside of the upper connecting seat 1 and the lower connecting seat 3, and the disassembly process is more convenient and can be completed by means of a fracturing tool;

when the installation is needed, an operator aligns the insertion groove 56 on the upper connecting seat 1 with the insertion block 57 on the lower connecting seat 3, and inserts the insertion block 57 into the insertion groove 56, so that the upper connecting seat 1 can be placed and attached on the top of the lower connecting seat 3, at the moment, the operator reversely rotates the hand wheel 512, the worm 51 rotates to drive the worm wheel 52 to rotate, the gear 53 can rotate to drive the rack 54 to move upwards, the rack 54 pushes the linkage rod 55 upwards when moving upwards, so that the other end of the linkage rod can push the fixing block 510 to move towards the direction of the fixing groove 511, the fixing block 510 can gradually enter the inside of the fixing groove 511 in the moving process, so that the movement of the insertion block 57 can be limited, the upper connecting seat 1 and the lower connecting seat 3 can be stably connected, and therefore, the components of a fracturing wellhead can be conveniently installed and disassembled, and the subsequent maintenance of the fracturing wellhead can be facilitated, and in addition, by utilizing the self-locking characteristic between the worm 51 and the worm wheel 52, the connection stability after the upper connecting seat 1 and the lower connecting seat 3 are connected can be better.

The above-mentioned, 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 utility model provides a stabilize fracturing well head structure of dismouting, includes connecting seat (1), last conduction pipe (2), lower connecting seat (3), conduction pipe (4) down, its characterized in that, be provided with between connecting seat (3) and the last connecting seat (1) down and just tear mechanism (5) open, just tear mechanism (5) open including worm (51), worm (51) rotate and are connected in the inside of connecting seat (3) down, the outside transmission of worm (51) is connected with worm wheel (52), the coaxial fixedly connected with gear (53) in outside of worm wheel (52), the surface meshing of gear (53) is connected with rack (54), the top of rack (54) is rotated and is connected with gangbar (55), inserting groove (56) have been seted up to the medial surface of going up connecting seat (1), inserting block (57) have been pegged graft to the medial surface of inserting groove (56), communicating cavity (58) have been seted up with the inside of lower connecting seat (3) to inserting block (57), guide groove (59) have been seted up to the medial surface of inserting block (57), the medial surface of guide groove (59) has been connected with the fixed slot (510) on the connecting seat (511).

2. A frac wellhead structure with stable disassembly and assembly according to claim 1, characterized in that the worm (51) is fixedly connected with a hand wheel (512) at the end outside the lower connecting seat (3).

3. A frac wellhead structure for stable disassembly and assembly according to claim 1 wherein the worm gear (52), rack (54), linkage rod (55) and gear (53) are all disposed inside the cavity (58).

4. A frac wellhead structure for stable disassembly and assembly as claimed in claim 1 wherein the worm gear (52) is rotatably connected to the inside of the cavity (58) and the rack (54) is slidably connected to the inside of the cavity (58).

5. The fracturing wellhead structure capable of being stably disassembled and assembled according to claim 1, wherein the upper end and the lower end of the linkage rod (55) are respectively and rotatably connected with the outer surfaces of the fixing block (510) and the rack (54), and the insertion block (57) is fixedly installed on the top surface of the lower connecting seat (3).

6. A fracturing wellhead structure capable of being assembled and disassembled stably according to claim 1, wherein the insertion grooves (56) are communicated with the fixing grooves (511), the size and the shape of the insertion grooves (56) correspond to those of the insertion blocks (57), and the size and the shape of the fixing blocks (510) correspond to those of the fixing grooves (511).

7. A frac wellhead structure with stable disassembly and assembly according to claim 1, characterized in that the easy-to-disassemble mechanisms (5) are four groups and distributed in the lower connecting seat (3) with equal angles.