Fracturing valve for oil field fracturing

Abstract

The utility model relates to the technical field of valves, and discloses a fracturing valve for oil field fracturing, which comprises a valve body, and the top of the valve body is in threaded connection with a valve rod; the driving structure comprises a rotating disc, overturning rods and shielding rods, the rotating disc is locked with the valve rod through bolts, the bottom of the rotating disc is rotationally connected with the two symmetrically-distributed overturning rods, the same shielding rod is fixedly arranged on one side of each overturning rod, and the overturning rods extend to the side of the rotating disc by rotating the overturning rods; the distance between the turnover rod and the center of the circular rotating disc is the length of a force arm, the turnover rod protrudes out of the circumference of the rotating disc, the length of a power arm for rotating the valve rod can be prolonged, the labor-saving purpose can be achieved, and for the valve element opening stage, especially the valve element loosening stage, labor can be saved more easily, and an operator can use the valve element conveniently; when the overturning rod is pushed to drive the rotating disc to rotate, the hand is not prone to being damaged due to slipping, holding and force exerting are convenient, and the protection effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a fracturing valve for oil field fracturing. Background Art

[0002] Fracturing refers to a method of using hydraulic force to create cracks in oil and gas layers during oil or gas production. It is also called hydraulic fracturing. During oil drilling fracturing work, multiple valves need to be installed on the fracturing tree.

[0003] The prior art discloses a petroleum drilling fracturing valve seat (publication number: CN115342193B), comprising: a valve body, an assembly cavity and a mounting seat, the mounting seat comprising a top plate at the top and an annular plate at the bottom; a valve seat body, an annular column is connected to the side wall of the valve seat body, and an annular elastic pad is arranged at the bottom end of the annular column; a valve stem, the valve stem is threadedly connected to the top plate, and the bottom end of the valve stem is connected to a valve core.

[0004] In the prior art, the valve stem is mainly used to drive the valve core to block and seal the chamber of the valve body, and the valve stem needs to rotate. The prior art mostly uses a turntable connected to the valve stem, pushing the turntable to drive the valve stem to rotate, and the size of the turntable is fixed. It will be particularly difficult in the stage of loosening the valve core. If the turntable diameter is increased, after loosening, the excessive size will increase the rotation radius, which makes it inconvenient to rotate the valve stem multiple times, and there is a certain amount of room for optimization.

[0005] To this end, we propose a fracturing valve for oil field fracturing. Utility Model Content

[0006] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a fracturing valve for oil field fracturing.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme, a fracturing valve for oil field fracturing, comprising:

[0008] A valve body, with openings at both ends of the valve body, flanges for connection fixedly provided at the openings of the valve body, a valve core provided in the cavity of the valve body, a valve stem threadedly connected to the top of the valve body, and the valve stem fixedly connected to the valve core;

[0009] A driving structure is arranged at the top end of the valve stem and is used to push the valve stem to rotate and adjust the position of the valve core. The driving structure includes a turntable, a flip rod and a blocking rod. The turntable is locked to the valve stem by bolts. The bottom of the turntable is rotatably connected to two symmetrically distributed flip rods. The same blocking rod is fixed on one side of each flip rod. The flip rod can be flipped to one side of the turntable to extend the force arm length of the rotating valve stem.

[0010] As a preferred embodiment of the utility model, the flip rod forms an arc-shaped rod structure, a pin is fixedly installed at a position of the flip rod close to the outer circumference of the turntable, a pin sleeve is fixedly installed at the bottom of the turntable, and the pin shaft is rotatably connected to the pin sleeve.

[0011] As a preferred embodiment of the present invention, the flip rod forms a rectangular frame structure, and the shielding rod is arranged at the concave surface of the flip rod and is integrally formed with the shielding rod.

[0012] As a preferred embodiment of the present invention, the concave surfaces of the two flip rods are arranged opposite to each other, and the flip rods can be rotatably stored under the turntable.

[0013] As a preferred embodiment of the utility model, the driving structure further includes a positioning pin and a positioning hole. A plurality of positioning holes are provided at the bottom of the turntable. The positioning pin is slidably connected to the flip rod. The positioning pin can be inserted into the positioning hole to lock the position of the flip rod.

[0014] As a preferred embodiment of the present invention, at least four positioning holes are provided on the bottom of the turntable, two positioning holes form a group, and the two positioning holes in the same group are symmetrically distributed.

[0015] As a preferred embodiment of the present invention, the positioning pin forms a columnar structure, and a magnet is fixedly mounted on the end of the positioning pin. The magnet can absorb the turntable and limit the positioning pin in the positioning hole.

[0016] Beneficial Effects

[0017] The utility model provides a fracturing valve for oil field fracturing, which has the following beneficial effects:

[0018] 1. A fracturing valve for oilfield fracturing is provided with two flip rods, which can be used to tighten the valve stem and loosen the valve stem respectively. By rotating the flip rod, the flip rod is extended to the side of the turntable. Then, the distance between the flip rod and the center of the circular turntable is the force arm length. The protrusion of the flip rod from the circumference of the turntable can extend the length of the power arm of the rotating valve stem. It can be known from the mechanical formula that the purpose of saving effort can be achieved. For opening the valve core, especially in the stage of loosening the valve core, it can be easier and more labor-saving, and it is convenient for the operator to use. A shielding rod is provided, which can serve as a hand guard. When the fingers are bent and buckled into the cavity of the shielding rod, the flip rod is pushed to drive the turntable to rotate. It is not easy to be injured due to slipping of the hand, and it is convenient to hold and exert force, and has a protective effect.

[0019] 2. This fracturing valve for oil field fracturing is provided with positioning pins and positioning holes. The positioning pins are inserted into different positioning holes to lock the position of the flip rod. When the flip rod is flipped to the side of the turntable, the positioning pin can be inserted into one of the positioning holes. When the flip rod is stored at the bottom of the turntable, the positioning pin is inserted into the other positioning hole. The positioning pin is adsorbed by a magnet, which makes it easy to remove the positioning pin to release the locking limit of the flip rod, simplifying the operating steps and facilitating use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is one of the overall three-dimensional diagrams of the utility model;

[0021] Figure 2 This is the second overall stereogram of the utility model;

[0022] Figure 3 This is a three-dimensional diagram of the turntable of the utility model;

[0023] Figure 4 This is a schematic diagram of the flip rod of the utility model after flipping;

[0024] Figure 5 This is a bottom-up stereoscopic view of the turntable of the utility model.

[0025] Legend: 10. Valve body; 11. Valve stem; 12. Turntable; 13. Flip rod; 14. Blocking rod; 20. Positioning pin; 21. Positioning hole. DETAILED DESCRIPTION

[0026] A fracturing valve for oil field fracturing, such as Figure 1 and Figure 2 As shown, including:

[0027] A valve body 10, with openings at both ends of the valve body 10, a flange for connection is fixedly provided at the opening of the valve body 10, a valve core is provided in the cavity of the valve body 10, a valve stem 11 is threadedly connected to the top of the valve body 10, and the valve stem 11 is fixedly connected to the valve core. Specifically, a detachable mounting seat is provided on the top of the valve body 10, the mounting seat is locked and fixed with the valve body 10 by bolts, the valve stem 11 is threadedly connected to the mounting seat, a sealing gasket is provided between the mounting seat and the valve body 10, the valve core needs to be adapted to the cavity of the valve body 10 to ensure the sealing effect, and the specific size is not too limited, the valve core is not shown in the figure, as a well-known prior art, it is not described here;

[0028] like Figure 2 , Figure 3 and Figure 4The driving structure is arranged at the top of the valve stem 11 and is used to push the valve stem 11 to rotate and adjust the position of the valve core. The driving structure includes a turntable 12, a flip rod 13 and a shielding rod 14. The turntable 12 is locked with the valve stem 11 by bolts. The bottom of the turntable 12 is rotatably connected to two symmetrically distributed flip rods 13. The same shielding rod 14 is fixedly arranged on one side of each flip rod 13. The flip rod 13 can be flipped to one side of the turntable 12 to extend the length of the force arm of the rotating valve stem 11. The flip rod 13 forms an arc-shaped rod body structure. A pin is fixedly installed at the position of the flip rod 13 near the outer circumference of the turntable 12. A pin sleeve is fixedly installed at the bottom of the turntable 12. The pin is rotatably connected to the pin sleeve. The flip rod 13 forms a rectangular frame structure. The shielding rod 14 is arranged at the concave surface of the flip rod 13 and is integrally formed with the shielding rod 14. The concave surfaces of the two flip rods 13 are arranged opposite to each other. The lever 13 is a handlebar 14 which is used to hold the valve stem 11 in place and to loosen the valve stem 11 so that the lever 13 is held in place and the valve stem 11 is released.

[0029] like Figure 4 and Figure 5 As shown, the driving structure also includes a positioning pin 20 and a positioning hole 21. A plurality of positioning holes 21 are provided at the bottom of the turntable 12. The positioning pin 20 is slidably connected to the flip rod 13. The positioning pin 20 can be inserted into the positioning hole 21 to lock the position of the flip rod 13. At least four positioning holes 21 are provided at the bottom of the turntable 12. Two positioning holes 21 form a group. The two positioning holes 21 in the same group are symmetrically distributed. The positioning pin 20 forms a columnar structure. A magnet is fixedly installed at the end of the positioning pin 20. The magnet can absorb the turntable 12 and limit the positioning pin 20 in the positioning hole 21. To supplement the above scheme, in this scheme, by providing a positioning pin 20 and a positioning hole 21, the position of the flip rod 13 is locked by inserting the positioning pin 20 into different positioning holes 21. When the flip rod 13 is flipped to the side of the turntable 12, the positioning pin 20 can be inserted into one of the positioning holes 21, and when the flip rod 13 is stored at the bottom of the turntable 12, the positioning pin 20 is inserted into the other positioning hole 21. The positioning pin 20 is adsorbed by a magnet, which makes it easy to remove the positioning pin 20 to release the locking limit of the flip rod 13, thereby simplifying the operating steps and facilitating use.

[0030] The working principle of the utility model is as follows: the two flip rods 13 can be used to tighten the valve stem 11 and loosen the valve stem 11 respectively. By rotating the flip rod 13, the flip rod 13 is extended to the side of the turntable 12. Then, the distance between the flip rod 13 and the center of the circular turntable 12 is the force arm length. The flip rod 13 protrudes from the circumference of the turntable 12, which can extend the power arm length of the rotating valve stem 11. For opening the valve core, especially in the stage of loosening the valve core, it can be easier and more labor-saving. The position of the flip rod 13 is locked by inserting the locating pins 20 into different locating holes 21. When the flip rod 13 is flipped to the side of the turntable 12, the locating pin 20 can be inserted into one of the locating holes 21, and when the flip rod 13 is stored at the bottom of the turntable 12, the locating pin 20 is inserted into the other locating hole 21. The locating pin 20 is adsorbed by a magnet, which makes it easy to remove the locating pin 20 to release the locking limit of the flip rod 13, so as to lock the position of the flip rod 13.

[0031] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A fracturing valve for oilfield fracturing, characterized in that: include: A valve body (10), wherein both ends of the valve body (10) are provided with openings, flanges for connection are fixedly provided at the openings of the valve body (10), a valve core is provided in the cavity of the valve body (10), a valve stem (11) is threadedly connected to the top of the valve body (10), and the valve stem (11) is fixedly connected to the valve core; A driving structure is arranged at the top of the valve stem (11) and is used to push the valve stem (11) to rotate and adjust the position of the valve core. The driving structure includes a turntable (12), a flip rod (13) and a blocking rod (14). The turntable (12) is locked with the valve stem (11) by bolts. The bottom of the turntable (12) is rotatably connected to two symmetrically distributed flip rods (13). An identical blocking rod (14) is fixedly arranged on one side of each flip rod (13). The flip rod (13) can be flipped to one side of the turntable (12) to extend the length of the force arm of the rotating valve stem (11).

2. The fracturing valve for oilfield fracturing according to claim 1, characterized in that: The flip rod (13) forms an arc-shaped rod body structure. A pin is fixedly installed at a position of the flip rod (13) close to the outer circumference of the rotating disk (12). A pin sleeve is fixedly installed at the bottom of the rotating disk (12). The pin is rotatably connected to the pin sleeve.

3. The fracturing valve for oilfield fracturing according to claim 1, characterized in that: The flip rod (13) forms a rectangular frame structure, and the shielding rod (14) is arranged at the concave surface of the flip rod (13) and is integrally formed with the shielding rod (14).

4. The fracturing valve for oilfield fracturing according to claim 1, characterized in that: The concave surfaces of the two flip rods (13) are arranged opposite to each other, and the flip rods (13) can be rotatably stored under the rotating disk (12).

5. The fracturing valve for oilfield fracturing according to claim 1, characterized in that: The driving structure further comprises a positioning pin (20) and a positioning hole (21); a plurality of positioning holes (21) are provided at the bottom of the rotating disk (12); the positioning pin (20) is slidably connected to the flip rod (13); and the positioning pin (20) can be inserted into the positioning hole (21) to lock the position of the flip rod (13).

6. The fracturing valve for oilfield fracturing according to claim 5, characterized in that: At least four positioning holes (21) are provided at the bottom of the rotating disk (12), two positioning holes (21) form a group, and the two positioning holes (21) in the same group are symmetrically distributed.

7. The fracturing valve for oilfield fracturing according to claim 5, characterized in that: The positioning pin (20) forms a columnar structure, and a magnet is fixedly mounted on the end of the positioning pin (20), and the magnet can absorb the turntable (12) and limit the positioning pin (20) in the positioning hole (21).

Images