Chuck with multifunctional control valve

Abstract

The utility model discloses a chuck with a multifunctional control valve, which relates to the technical field of petroleum drilling equipment and comprises a control valve body mounted on a slip body, a horizontal balance beam fixedly connected onto the slip body, a manual reversing valve fixedly connected with the control valve body, and a manual valve body adjusting part connected with the lower end of the manual reversing valve. The lower end of the control valve body is sequentially connected with an upper limiting piece, a manual valve body adjusting piece and a lower limiting piece, and the manual valve body adjusting piece limits lifting of the height of the horizontal balance beam by adjusting the states of the upper limiting piece and the lower limiting piece and controls the upper limiting piece to clamp the horizontal balance beam to move downwards. And the lower limiting piece is controlled to clamp the horizontal balance beam to continuously move downwards. The slip lifting device is reasonable in structure, not only can control lifting of the slip to achieve loosening and clamping of a pipe column, but also has a locking function, the situation that the slip ascends and descends abnormally due to insufficient air pressure or abrasion of a sealing piece and the like is avoided, and safety of casing running operation is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of manual reversing valves, in particular to a chuck with a multifunctional control valve. Background Art

[0002] The chucks currently used in casing running operations do not have a locking function. Therefore, in actual use, during the clamping or loosening of the control valve, the slips may rise or fall abnormally due to insufficient pressure or wear of the seals, which poses a great safety hazard.

[0003] Therefore, the applicant developed a chuck with a multifunctional control valve to reduce operational safety risks, etc. Utility Model Content

[0004] The utility model aims at one or more of the above existing problems and provides a chuck with a multifunctional control valve.

[0005] According to one aspect of the utility model, a chuck with a multifunctional control valve comprises: a control valve body and a slip body, the control valve body is installed on the shell of the slip body, the slip body is fixedly connected to a horizontal balance beam, the control valve body is fixedly connected to a manual reversing valve, the lower end of the manual reversing valve is fixedly connected to a manual valve body adjusting member, the lower end of the control valve body is connected to an upper limit member, a manual valve body adjusting member and a lower limit member in sequence from top to bottom, the manual valve body adjusting member is used to limit the lifting height of the horizontal balance beam by adjusting the states of the upper limit member and the lower limit member, control the manual valve body adjusting member to control the upper limit member to clamp the horizontal balance beam to move downward, and control the lower limit member to clamp the horizontal balance beam to continue to move downward.

[0006] As a feasible preferred method, the manual valve body adjustment member includes a manual control plate and a limit control handle, the upper end of the manual control plate is fixedly connected to the lower end of the manual reversing valve, the limit control handle and the manual control plate are movably connected, and one end of the limit control handle is hinged to the control valve body.

[0007] As a feasible preferred method, the upper limit member includes an upper limit block and a first spring. The lower end of the control valve body is provided with a first through hole opened in the horizontal direction, the upper limit block is inserted into the first through hole, the end of the first through hole away from the horizontal balance beam is connected to the upper cover plate, the upper limit block is provided with a first slot hole on the end facing the upper cover plate, a first spring is arranged between the upper limit block and the upper cover plate, one end of the first spring is connected to the upper cover plate, and the other end is connected to the first slot hole of the upper limit block.

[0008] As a feasible preferred method, the limit control handle includes a handle head and a handle tail, the handle head is hinged to the control valve body, and a clamping block is arranged at the upper end of the handle head, and the clamping block is used to clamp the upper limit block.

[0009] As a feasible preferred method, the lower limit member includes a lower limit block and a second spring, the lower end of the control valve body is provided with a second through hole opened in the horizontal direction, the second through hole is located below the first through hole, the lower limit block is inserted into the second through hole, the end of the second through hole away from the horizontal balance beam is connected to the lower cover plate, a second slot hole is provided on the end of the lower limit block facing the lower cover plate, a second spring is provided between the upper limit block and the lower cover plate, one end of the second spring is connected to the lower cover plate, and the other end is connected to the second slot hole of the lower limit block.

[0010] As a feasible preferred manner, a notch is provided below the handle head, one end of the pin is inserted into the notch, and the other end of the pin is placed in the lower limit block.

[0011] As a feasible preferred method, the cava body is a four-piece cava, which is symmetrically installed on two identical shells. The two shells are connected by a hinge pin. The four-piece cava is driven by four cylinders respectively, and each cylinder is connected to the cava body through a horizontal balance beam and a connecting rod.

[0012] The beneficial effects of the utility model are:

[0013] The utility model provides a chuck with a multifunctional control valve, which has a reasonable structure and adopts a four-piece slip body structure. The lifting and lowering of the slip body is controlled by four cylinders to realize the loosening and clamping of the pipe column. When clamping, a uniformly distributed annular pressure belt can be formed when clamping the pipe column, which not only ensures reliable clamping but also minimizes damage to the pipe column. The structure of the present application can not only control the lifting and lowering of the slip to realize the loosening and clamping of the pipe column, but also has a locking function, and will not cause abnormal rising and falling of the slip due to insufficient air pressure or wear of the seal, thereby ensuring the safety of the casing operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a chuck with a multifunctional control valve;

[0015] Figure 2 It is a structural schematic diagram of a chuck with a multifunctional control valve in a loosened state;

[0016] Figure 3 It is a structural schematic diagram of a chuck with a multifunctional control valve in a tightened state;

[0017] Figure 4 It is a structural schematic diagram of a limit control handle in a chuck with a multifunctional control valve;

[0018] Figure 5 The present invention is a cross-sectional view of a central frame of a chuck with a multifunctional control valve. DETAILED DESCRIPTION

[0019] The technical solution of the application is further described in detail below with reference to the accompanying drawings.

[0020] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0022] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0023] Embodiment 1

[0024] like Figure 1-5 As shown, the utility model provides a chuck with a multifunctional control valve, which is particularly suitable for use in the process of casing operation in marine and land drilling. The chuck is mainly composed of a shell, a horizontal balance beam, a slip body, a control valve, a cylinder and the like. An upper cover is provided on the shell, and an upper guide plate is installed on the upper cover, which can play a centering role. The slip body is a four-piece slip, which is symmetrically installed on two identical shells, and the two shells are connected by a hinge pin. The four-piece slip is driven by four cylinders respectively, and each cylinder is connected to the slip body through a horizontal balance beam and a connecting rod 12 to ensure the synchronous action of the cylinder. In the present application, two interlocking horizontal balance beams are used, one end of the connecting rod is hinged to the horizontal balance beam, and the other end is connected to the slip body. Therefore, a four-piece slip body structure is adopted, and the lifting and lowering of the slip body are controlled by four cylinders to realize the loosening and clamping of the pipe column. When clamping, a uniformly distributed annular pressure belt can be formed when clamping the pipe column, which not only ensures reliable clamping but also minimizes the damage to the pipe column.

[0025] Specifically, the chuck of the present application includes a multifunctional control valve device and a slip body 2, wherein the multifunctional control valve device includes a control valve body 1, and the control valve body 1 is mounted on the shell of the slip body 2. The slip body 2 is fixedly connected to a horizontal balance beam, the control valve body 1 is fixedly connected to a manual reversing valve 9, the lower end of the manual reversing valve 9 is fixedly connected to a manual valve body adjusting member, and the lower end of the control valve body 1 is sequentially connected to an upper limit member 4, a manual valve body adjusting member and a lower limit member 5 from top to bottom, and the manual valve body adjusting member is used to limit the lifting height of the horizontal balance beam 3 by adjusting the states of the upper limit member 4 and the lower limit member 5, control the manual valve body adjusting member to control the upper limit member 4 to clamp the horizontal balance beam 3 to move downward, and control the lower limit member 5 to clamp the horizontal balance beam to continue to move downward. The control valve body is mounted on the upper plane of the shell, and the manual reversing valve 9 is fixed on the control valve body.

[0026] In the present application, the manual valve body adjustment component includes a manual control plate 6 and a limit control handle 7. The upper end of the manual control plate 6 is fixedly connected to the lower end of the manual reversing valve 9. The limit control handle 7 is movably connected to the manual control plate 6. One end of the limit control handle 7 is hinged to the control valve body 1.

[0027] Among them, the upper limit member 4 includes an upper limit block 41 and a first spring 42. The lower end of the control valve body 1 is provided with a first through hole opened in the horizontal direction. The upper limit block 41 is inserted into the first through hole. The end of the first through hole away from the horizontal balance beam 3 is connected to the upper cover plate 43. The upper limit block 41 is provided with a first slot 44 on one end facing the upper cover plate 43. The first spring 42 is arranged between the upper limit block 41 and the upper cover plate 43. One end of the first spring 42 is connected to the upper cover plate 43, and the other end is connected to the first slot 44 of the upper limit block 41.

[0028] It should be noted that the limit control handle 7 includes a handle head 71, a handle body and a handle tail 72. The handle head 71 is hinged to the control valve body 1. A clamping block 73 is provided at the upper end of the handle head 71. The clamping block 73 is used to clamp the upper limit block 41. In the present application, a handle hole is provided at the handle tail for easy grasping.

[0029] As shown in the figure, the lower limit member 5 includes a lower limit block 51 and a second spring 52. The lower end of the control valve body 1 is provided with a second through hole opened in the horizontal direction. The second through hole is located below the first through hole. The lower limit block 51 is inserted into the second through hole. The end of the second through hole away from the horizontal balance beam 3 is connected to the lower cover plate 53. The lower limit block 51 is provided with a second slot 54 at one end facing the lower cover plate 53. The second spring 52 is arranged between the upper limit block 51 and the lower cover plate 53. One end of the second spring 52 is connected to the lower cover plate 53, and the other end is connected to the second slot 54 of the lower limit block 51. A notch is arranged below the handle head 71, and one end of the pin 8 is inserted into the notch. The other end of the pin 8 is placed in the lower limit block, so that the pin is fixedly connected to the lower limit block. Therefore, when the control handle is pushed upward to lift, the pin in the notch below the handle head 71 drives the lower limit block to move toward the lower cover plate, compressing the second spring between the lower limit block and the lower cover plate.

[0030] As shown in the figure, hold the handle hole, push the control handle upward to lift the slips to loosen the pipe string, and at the same time, the lower limit block retracts, the upper limit block pops out, and the horizontal balance beam will be locked by the popped-up upper limit block as the slips rise; conversely, pull the control handle downward to lower the slips to clamp the pipe string, and at the same time, the upper limit block retracts, the lower limit block pops out, and the horizontal balance beam will be locked by the popped-up lower limit block 8.7 as the slips descend. The control valve can not only control the lifting and lowering of the slips to loosen and clamp the pipe string, but also has a locking function, which fully guarantees the safety of casing running operations.

[0031] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A chuck with a multifunctional control valve, characterized in that: include: A control valve body (1) and a slip body (2), wherein the control valve body (1) is mounted on a shell of the slip body (2), a horizontal balance beam (3) is fixedly connected to the slip body (2), the control valve body (1) is fixedly connected to a manual reversing valve (9), the lower end of the manual reversing valve (9) is fixedly connected to a manual valve body adjusting member, the lower end of the control valve body (1) is sequentially connected to an upper limit member (4), a manual valve body adjusting member and a lower limit member (5) from top to bottom, the manual valve body adjusting member is used to limit the lifting height of the horizontal balance beam (3) by adjusting the states of the upper limit member (4) and the lower limit member (5), control the manual valve body adjusting member to control the upper limit member (4) to clamp the horizontal balance beam (3) and move it downward, and control the lower limit member (5) to clamp the horizontal balance beam (3) and continue to move it downward.

2. A chuck with a multifunctional control valve according to claim 1, characterized in that: The manual valve body adjustment component comprises a manual control plate (6) and a limit control handle (7), the upper end of the manual control plate (6) is fixedly connected to the lower end of the manual reversing valve (9), the limit control handle (7) and the manual control plate (6) are movably connected, and one end of the limit control handle (7) is hinged to the control valve body (1).

3. A chuck with a multifunctional control valve according to claim 2, characterized in that: The upper limit member (4) comprises an upper limit block (41) and a first spring (42); a first through hole opened in the horizontal direction is provided at the lower end of the control valve body (1); the upper limit block (41) is inserted into the first through hole; an end of the first through hole away from the horizontal balance beam (3) is connected to an upper cover plate (43); a first slot (44) is provided on an end of the upper limit block (41) facing the upper cover plate (43); the first spring (42) is provided between the upper limit block (41) and the upper cover plate (43); one end of the first spring (42) is connected to the upper cover plate (43), and the other end is connected to the first slot (44) of the upper limit block (41).

4. A chuck with a multifunctional control valve according to claim 3, characterized in that: The limit control handle (7) comprises a handle head (71) and a handle tail (72); the handle head (71) is hinged to the control valve body (1); a clamping block (73) is provided at the upper end of the handle head (71); the clamping block (73) is used to clamp the upper limit block (41).

5. A chuck with a multifunctional control valve according to claim 4, characterized in that: The lower limit member (5) comprises a lower limit block (51) and a second spring (52); a second through hole opened in a horizontal direction is provided at the lower end of the control valve body (1); the second through hole is located below the first through hole; the lower limit block (51) is inserted into the second through hole; an end of the second through hole away from the horizontal balance beam (3) is connected to a lower cover plate (53); a second slot hole (54) is provided on an end of the lower limit block (51) facing the lower cover plate (53); the second spring (52) is provided between the lower limit block (51) and the lower cover plate (53); one end of the second spring (52) is connected to the lower cover plate (53), and the other end is connected to the second slot hole (54) of the lower limit block (51).

6. A chuck with a multifunctional control valve according to claim 5, characterized in that: A notch is provided below the handle head (71), one end of a pin shaft (8) is inserted into the notch, and the other end of the pin shaft (8) is placed in the lower limit block.

7. A chuck with a multifunctional control valve according to claim 1, characterized in that: The slip body (2) is a four-piece slip, which is symmetrically mounted on two identical shells (10), the two shells being connected by a hinge pin, and the four-piece slip is driven by four cylinders (11) respectively, and each cylinder (11) is connected to the slip body (2) by a horizontal balance beam (3) and a connecting rod (12).

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