CN210938937U

CN210938937U - Clamping device for downhole tool

Info

Publication number: CN210938937U
Application number: CN201921893681.3U
Authority: CN
Inventors: 程华
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-05
Filing date: 2019-11-05
Publication date: 2020-07-07
Anticipated expiration: 2029-11-05

Abstract

The utility model relates to the technical field of downhole tools, in particular to a clamping device for a downhole tool, which comprises a shell, wherein the inner side of the shell is fixedly connected with a fixed rod, the outer end surface of the fixed rod positioned at the left side is rotationally connected with a first clamping plate, the outer end surface of the fixed rod positioned at the right side is rotationally connected with a second clamping plate, the right end surface of the shell positioned at the upper side is rotationally connected with a rotating block through a hinge, the right end surface of the shell positioned at the lower side is fixedly connected with a clamping seat, the inner side of the rotating block is slidably connected with a sliding plate, the bottom end of the sliding plate is fixedly connected with a supporting plate, and a clamping rod is fixedly connected between the supporting plates positioned at the front side and the rear side, the clamping of the downhole tool is convenient and fast, and the downhole tools with different diameters can be clamped.

Description

Clamping device for downhole tool

Technical Field

The utility model relates to a downhole tool technical field specifically is a clamping device for downhole tool.

Background

The underground tool is an indispensable element for oilfield production operation and yield increase measures, can realize the operations of sealing, opening and closing a pipe column, fishing and the like of different oil-water-gas layers, is a necessary tool for meeting various process requirements of water injection, water plugging, acid fracturing, oil extraction and gas production, is a well-descending tool system required by underground construction operation, becomes an underground tool, and is increasingly widely applied along with the development of the society, so that the requirement on a clamping device for the underground tool is increasingly increased.

The existing underground tool is generally of a cylindrical structure, is inconvenient to assemble and transport, is easy to fall off, is not identical in diameter, and needs clamping devices of different specifications to clamp the underground tool, so that the clamping device for the underground tool is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a clamping device for downhole tool to solve the problem that proposes among 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 clamping device for downhole tool, includes the shell, the shell is the symmetric distribution, is located the top of shell with be located the below the equal fixedly connected with handle in bottom of shell, the handle symmetric distribution is on the shell, the inboard fixedly connected with dead lever of shell, dead lever symmetric distribution is in the inboard of shell, is located left the outer terminal surface of dead lever rotates and is connected with first clamp plate, is located the right side the outer terminal surface of dead lever rotates and is connected with the second clamp plate, the inboard equal sliding connection in top of first clamp plate and second clamp plate has the connecting rod, the front end and the equal fixedly connected with fixed plate in rear end of connecting rod are located the top the right-hand member face of shell rotates through the hinge and is connected with the turning block, is located the below the right-hand member face fixedly connected with cassette of shell.

Preferably, the left end face fixedly connected with slider of shell, the inboard sliding connection of slider has the guide arm, the top and the equal fixedly connected with limiting plate in bottom of guide arm, the left end face sliding connection of limiting plate and shell, the outside of guide arm is provided with first spring, the both ends and limiting plate and slider fixed connection of first spring.

Preferably, be located the top of shell inboard with be located the below the equal threaded connection in bottom of shell has the screw rod, the screw rod sets up between the handle of the left and right sides, and the bottom of the screw rod that is located the top all rotates with the top of the screw rod that is located the below and is connected with the connecting plate, connecting plate fixed connection is between the fixed plate of front and back both sides.

Preferably, the inboard sliding connection of commentaries on classics piece has the slide, the bottom fixedly connected with backup pad of slide, backup pad symmetric distribution is in the place ahead and the rear of slide bottom, and be located both sides around fixedly connected with kelly between the backup pad, the kelly sets up the outside at the commentaries on classics piece, kelly and cassette block are located both sides around being provided with the second spring between the backup pad, the second spring sets up the inboard at the commentaries on classics piece, the both ends of second spring respectively with slide and commentaries on classics piece fixed connection.

Preferably, anti-skid rubber cushion layers are additionally arranged on the bottom end face of the connecting plate located above, the top end face of the connecting plate located below and the inner sides of the outer end faces of the first clamping plate and the second clamping plate.

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

1. the utility model discloses in, through the components such as kelly, commentaries on classics piece, cassette that set up, can be through the block of kelly and cassette, the shell of both sides is close to each other from top to bottom, makes first clamp plate and second clamp plate realize pressing from both sides tightly to instrument in the pit, makes the clamping convenient and fast of instrument in the pit, and through the slip of two upper and lower shells, messenger's device can press from both sides tightly to the instrument in the pit of different diameters.

2. The utility model discloses in, through the screw rod that sets up, connecting rod, components such as dead lever, can make the fixed plate pass through the connecting rod in first pinch-off blades and the second pinch-off blades slip, the angle that drives first pinch-off blades and second pinch-off blades changes to when pressing from both sides tight to the instrument in the pit, can make first pinch-off blades, second pinch-off blades and connecting plate hug closely the surface by the clamping piece all the time, it is more stable to the clamp of instrument in the pit.

Drawings

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

FIG. 2 is a schematic diagram of a first clamping plate structure of the present invention;

fig. 3 is a schematic diagram of a second clamping plate structure of the present invention.

In the figure: the device comprises a shell 1, a handle 2, a screw rod 3, a fixing plate 4, a connecting plate 5, a connecting rod 6, a first clamping plate 7, a second clamping plate 8, a fixing rod 9, a sliding block 10, a guide rod 11, a first spring 12, a limiting plate 13, a rotating block 14, a sliding plate 15, a second spring 16, a supporting plate 17, a clamping rod 18 and a clamping seat 19.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution:

a clamping device for a downhole tool comprises a shell 1, wherein the shell 1 is symmetrically distributed, handles 2 are fixedly connected to the top end of the shell 1 positioned above and the bottom end of the shell 1 positioned below, the handles 2 are symmetrically distributed on the shell 1, the arrangement is convenient for the shell 1 to be held through the handles 2, fixing rods 9 are fixedly connected to the inner side of the shell 1, the fixing rods 9 are symmetrically distributed on the inner side of the shell 1, a first clamping plate 7 is rotatably connected to the outer end face of the fixing rod 9 positioned on the left side, a second clamping plate 8 is rotatably connected to the outer end face of the fixing rod 9 positioned on the right side, the arrangement is such that the first clamping plate 7 and the second clamping plate 8 can rotate through the fixing rods 9, connecting rods 6 are slidably connected to the inner sides of the top ends of the first clamping plate 7 and the second clamping plate 8, and fixing plates 4 are fixedly connected to the front end and the rear end of the connecting rods 6, due to the arrangement, when the fixed plate 4 slides, the connecting rod 6 can drive the first clamping plate 7 and the second clamping plate 8 to rotate, the right end face of the shell 1 positioned above is rotatably connected with the rotating block 14 through the hinge, and the right end face of the shell 1 positioned below is fixedly connected with the clamping seat 19.

The left end face of the shell 1 is fixedly connected with a sliding block 10, the inner side of the sliding block 10 is connected with a guide rod 11 in a sliding manner, the top end and the bottom end of the guide rod 11 are both fixedly connected with a limiting plate 13, the limiting plate 13 is connected with the left end face of the shell 1 in a sliding manner, the outer side of the guide rod 11 is provided with a first spring 12, the two ends of the first spring 12 are fixedly connected with the limiting plate 13 and the sliding block 10, the sliding of the sliding block 10 on the guide rod 11 drives the shells 1 on the upper side and the lower side to move relatively, so that the shells 1 on the upper side and the lower side can clamp down a downhole tool, the inner side of the top end of the shell 1 above and the inner side of the bottom end of the shell 1 below are both in threaded connection with a screw rod 3, the screw rod 3 is arranged between the handles 2 on the, the connecting plate 5 is fixedly connected between the fixing plates 4 at the front side and the rear side, the arrangement can drive the connecting plate 5 to move in the vertical direction through the rotation of the screw rod 3, so that the fixing plates 4 drive the connecting rod 6 to slide, the inner side of the rotating block 14 is slidably connected with a sliding plate 15, the bottom end of the sliding plate 15 is fixedly connected with a supporting plate 17, the supporting plates 17 are symmetrically distributed in front of and behind the bottom end of the sliding plate 15, a clamping rod 18 is fixedly connected between the supporting plates 17 at the front side and the rear side, the clamping rod 18 is arranged at the outer side of the rotating block 14, the clamping rod 18 is clamped with a clamping seat 19, a second spring 16 is arranged between the supporting plates 17 at the front side and the rear side, the second spring 16 is arranged at the inner side of the rotating block 14, two ends of the second spring 16 are respectively fixedly connected with the sliding plate 15 and the rotating block 14, the clamping rod 18 can be stretched, the shells 1 on the upper side and the lower side are closed through the clamping of the clamping rod 18 and the clamping seat 19, the downhole tool can be prevented from sliding out from the right side of the device when being clamped, the bottom end face of the connecting plate 5 located above and the top end face of the connecting plate 5 located below and the inner sides of the outer end faces of the first clamping plate 7 and the second clamping plate 8 are both additionally provided with anti-slip rubber cushion layers, the arrangement enables the connecting plate 5, the first clamping plate 7 and the second clamping plate 8 to clamp and fasten the downhole tool at regular time, damage to the downhole tool is reduced, friction is increased, and the downhole tool is fixed more stably.

The working process is as follows: in the utility model, the upper shell 1 is pulled upwards, the lower shell 1 is pulled downwards, the sliding block 10 slides on the guide rod 11, the first spring 12 is compressed until the sliding block 10 contacts with the limiting plate 13, then the underground tool to be clamped is placed between the shells 1 at the upper and lower sides, then the shell 1 is loosened, the sliding blocks 10 at the upper and lower sides are driven to slide towards the center of the guide rod 11 under the elasticity of the limiting plate 13 until the shells 1 at the upper and lower sides contact with each other or the first clamping plate 7 and the second clamping plate 8 contact with the underground tool, then the clamping rod 18 is pulled, the supporting plate 17 is pulled out from the rotating block 14, at the moment, the supporting plate 17 can drive the sliding plate 15 to compress the second spring 16, the rotating block 14 is rotated, the supporting plate 17 is positioned below the clamping seat 19, the supporting plate 17 is loosened, the supporting plate 17 is driven under the elasticity of the second spring 16 to reset until the supporting plate 17 is clamped with the clamping seat 19, the closing between the shells 1 on the upper side and the lower side is realized, the downhole tool is clamped tightly, then the screw rod 3 is rotated, the connecting plate 5 is driven to move vertically when the screw rod 3 is rotated through the threaded connection between the screw rod 3 and the connecting plate 5, the connecting plate 5 is driven to move when the connecting plate 5 moves, so that the fixing plate 4 drives the connecting rod 6 to slide in the first clamping plate 7 and the second clamping plate 8, when the fixing plate 4 positioned above moves downwards and the fixing plate 4 positioned below moves upwards, the included angle between the adjacent first clamping plate 7 and the second clamping plate 8 is driven to reduce through the sliding of the connecting rod 6 in the first clamping plate 7 and the second clamping plate 8, when the fixing plate 4 positioned above moves upwards and the fixing plate 4 positioned below moves downwards, the connecting rod 6 slides in the first clamping plate 7 and the second clamping plate 8, the included angle between the adjacent first clamping plate 7 and the second clamping plate 8 is increased, and when the underground tool is clamped, the included angle between the first clamping plate 7 and the second clamping plate 8 can be adjusted according to the diameter of the underground tool, so that the clamping of the underground tool by the first clamping plate 7 and the second clamping plate 8 is more stable.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A clamping device for a downhole tool, comprising a housing (1), characterized in that: the shell (1) is symmetrically distributed, the top end of the shell (1) positioned above and the bottom end of the shell (1) positioned below are both fixedly connected with handles (2), the handles (2) are symmetrically distributed on the shell (1), the inner side of the shell (1) is fixedly connected with a fixed rod (9), the fixed rod (9) is symmetrically distributed on the inner side of the shell (1), the outer end face of the fixed rod (9) positioned on the left side is rotatably connected with a first clamping plate (7), the outer end face of the fixed rod (9) positioned on the right side is rotatably connected with a second clamping plate (8), the inner sides of the top ends of the first clamping plate (7) and the second clamping plate (8) are both slidably connected with a connecting rod (6), the front end and the rear end of the connecting rod (6) are both fixedly connected with a fixed plate (4), the right end face of the shell (1) positioned above is rotatably connected with a rotating block (14) through a hinge, the right end face of the shell (1) positioned below is fixedly connected with a clamping seat (19).

2. A clamping device for a downhole tool according to claim 1, wherein: the left end face fixedly connected with slider (10) of shell (1), the inboard sliding connection of slider (10) has guide arm (11), the top and the equal fixedly connected with limiting plate (13) in bottom of guide arm (11), the left end face sliding connection of limiting plate (13) and shell (1), the outside of guide arm (11) is provided with first spring (12), the both ends and limiting plate (13) and slider (10) fixed connection of first spring (12).

3. A clamping device for a downhole tool according to claim 1, wherein: be located the top of shell (1) inboard with be located the below the inboard equal threaded connection in bottom of shell (1) has screw rod (3), screw rod (3) set up between handle (2) of the left and right sides, and the bottom of the screw rod (3) that are located the top all rotates with the top of the screw rod (3) that are located the below and is connected with connecting plate (5), connecting plate (5) fixed connection is between the fixed plate (4) of both sides around.

4. A clamping device for a downhole tool according to claim 1, wherein: the inboard sliding connection of commentaries on classics piece (14) has slide (15), the bottom fixedly connected with backup pad (17) of slide (15), backup pad (17) symmetric distribution is in the place ahead and the rear of slide (15) bottom, be located both sides around be located fixedly connected with kelly (18) between backup pad (17), kelly (18) set up the outside at commentaries on classics piece (14), kelly (18) and cassette (19) block are located both sides around be located be provided with second spring (16) between backup pad (17), second spring (16) set up the inboard at commentaries on classics piece (14), the both ends of second spring (16) respectively with slide (15) and commentaries on classics piece (14) fixed connection.

5. A clamping device for a downhole tool according to claim 3, wherein: and anti-skid rubber cushion layers are additionally arranged on the bottom end surface of the connecting plate (5) positioned above, the top end surface of the connecting plate (5) positioned below and the inner sides of the outer end surfaces of the first clamping plate (7) and the second clamping plate (8).