Oil pipe blowout prevention plug valve

Abstract

The invention relates to the technical field of plug valves, in particular to an oil pipe blowout prevention plug valve which comprises a three-way plug valve body, a plug body is movably arranged in the three-way plug valve body and fixedly connected with a valve rod of the three-way plug valve body, and a handle is fixedly arranged at the end of the valve rod. A positioning assembly is arranged on the three-way plug valve main body; the movable block rotates in the annular groove of the fixing ring along with adjustment and rotation of the handle, the compressed first spring resets to push the positioning block to move and be inserted into the positioning groove, then the rotation angle of the handle is fixed, and meanwhile the rotatable push plate is arranged so that the positioning block can be conveniently pushed or fixed. Operation is easy and convenient, the position of the handle is fixed, then the position of the cock body is fixed, the oil flow direction is controlled, the cock body is prevented from rotating under the action of oil conveying impact force, and pipeline leakage accidents are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of plug valves, and specifically to an oil pipe blowout preventer plug valve. Background Art

[0002] For the Chinese patent document with the publication number CN221665324U, it discloses an oil pipe plug valve for downhole operations in the oil field, including a plug valve body. The plug valve body includes a main body, a flange, an adjusting rotating shaft, a handwheel and a valve plate. The flange is integrally formed at the end of the main body. The valve plate is arranged at the middle position inside the main body. The adjusting rotating shaft is rotatably connected to the middle position on the upper surface of the main body. By designing a cleaning and scraping mechanism, when there is residual oil stain attached to the inner surface edge of the main body when the plug valve body is in use, after regularly disassembling the plug valve body, the wrench is clamped on the outer surface of the rotating nut to drive the connecting rotating shaft and the scraping plate to contact the inner surface of the main body and rotate to scrape off the oil stain, which is convenient for stably rotating the scraping plate to clean the oil stain on the inner surface of the main body, facilitating regular cleaning, not easily reducing the internal oil flow area, and not easily contaminating the oil stain when the oil flows through the plug valve body.

[0003] However, in the above solution and the prior art, the three-way blowout preventer plug valve for oil pipes realizes opening and closing by driving the valve rod and the plug body to rotate through a handle. During operation, it is necessary to rotate the handle by a specified angle to control the plug body to rotate to a specified position to realize the control of the oil flow direction of the plug valve. During use, under the action of the impact force of oil transportation, the plug body inside the plug valve will rotate, which may lead to pipeline leakage accidents and needs to be improved and optimized. Summary of the Invention

[0004] The purpose of the present invention is to provide an oil pipe blowout preventer plug valve to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: an oil pipe blowout preventer plug valve, including: a three-way plug valve body, a plug body is movably arranged inside the three-way plug valve body, the plug body is fixedly connected to the valve rod of the three-way plug valve body, and a handle is fixedly arranged at the end of the valve rod; a positioning component is arranged on the three-way plug valve body, and the positioning component includes a fixed ring, a moving block, an L-shaped plate and a push post.

[0006] Preferably, the fixed ring is fixedly arranged on the outer wall of the three-way plug valve body, the valve rod is located at the center position of the fixed ring, a ring groove is opened on the fixed ring, a number of positioning grooves are equidistantly and annularly opened on the outer circumferential wall of the ring groove, and three of the positioning grooves are respectively oriented towards the three pipe openings of the three-way plug valve body. A trapezoidal ring block is fixedly arranged on the inner circumferential wall of the ring groove.

[0007] Preferably, the moving block is movably arranged in the annular groove. One end of the moving block is arranged in an arc shape. A trapezoidal annular groove is formed in an arc shape on the arc surface of the moving block. The trapezoidal annular groove is movably clamped with the trapezoidal annular block. Fixed columns are symmetrically and fixedly arranged at the upper end of the moving block, and the other ends of the fixed columns are fixedly connected with the handle.

[0008] Preferably, a moving groove is formed in the side wall of the moving block. Guide grooves are symmetrically formed in the two side walls of the moving groove. A positioning block is movably clamped in the moving groove. The positioning block is inserted into the positioning groove, and a trapezoidal pushing groove is formed at the upper end of the positioning block.

[0009] Preferably, guide blocks are symmetrically and fixedly arranged on the two side walls of the positioning block. The guide blocks are movably clamped in the guide grooves. A first spring is fixedly arranged on the side wall of the positioning block, and the other end of the first spring is fixedly connected with the side wall of the moving groove.

[0010] Preferably, the L-shaped plate is fixedly arranged on the side wall at the upper end of the handle. First magnetic blocks are symmetrically and fixedly embedded on the two inner walls of the L-shaped plate. A cover plate is fixedly arranged on the side wall of the L-shaped plate.

[0011] Preferably, a push column is movably arranged on the handle. The bottom end of the push column penetrates through the handle and is fixedly provided with a push plate. The bottom end of the push plate is movably embedded with balls at equal intervals. The push plate is movably clamped in the trapezoidal pushing groove. The balls are in clamping contact with the inclined surface of the trapezoidal pushing groove. The push column is fixedly sleeved with a first limiting block, and the first limiting block is clamped with the bottom wall of the handle.

[0012] Preferably, the top end of the push column penetrates through the cover plate and is fixedly provided with a second limiting block. The push column is sleeved with a second spring, and the two ends of the second spring are respectively clamped with the second limiting block and the cover plate.

[0013] Preferably, sliding grooves are symmetrically formed on the peripheral wall of the push column. The push column is movably sleeved with a round hole formed in the dial plate. Sliding blocks are symmetrically and fixedly arranged on the peripheral wall of the round hole, and the sliding blocks are movably clamped in the sliding grooves.

[0014] Preferably, the dial plate is movably arranged inside the fold angle of the L-shaped plate. The end of the dial plate is arranged in an arc shape. The dial plate is clamped with the inner side wall of the L-shaped plate. The two sides of the dial plate are respectively clamped with the handle and the cover plate. The dial plate is parallel to the push plate. Second magnetic blocks are symmetrically and fixedly embedded on the two side walls of the dial plate, and the second magnetic blocks attract the first magnetic blocks.

[0015] Compared with the prior art, the present application has the following beneficial effects:

[0016] By setting the fixed column, the moving block rotates in the annular groove of the fixed ring as the handle is adjusted and rotated. After the handle is rotated to the specified position, the compressed first spring resets and pushes the positioning block to move and insert into the positioning groove, thereby fixing the rotation angle of the handle. The operation is simple and convenient, achieving the fixation of the handle position and thus the fixation of the position of the cock body to control the oil flow direction, avoiding the rotation of the cock body under the impact of the oil delivery, and preventing pipeline leakage accidents;

[0017] By rotating the dial plate by 90 degrees, the push column and the push plate rotate by 90 degrees along with the dial plate. At this time, the ball at the bottom end of the push plate is in clamping contact with the inclined surface of the trapezoidal push groove. Then, by pressing the second limit block, the push column and the push plate are controlled to move downward. During the process, the push plate and the ball move along the inclined surface of the trapezoidal push groove, thereby pushing the positioning block to move along the moving groove and separate from the positioning groove, unlocking the handle to facilitate its rotation to adjust the oil flow direction; at the same time, rotating the dial plate by 90 degrees in the reverse direction, at this time the push plate rotates by 90 degrees in the reverse direction so that the push plate is clamped with the side wall of the trapezoidal push groove, and the end of the push plate points to the vertical side wall of the limiting trapezoidal push groove, thereby realizing that the push plate cannot move downward and the positioning block cannot move and separate from the positioning groove, further ensuring the fixation of the handle position, realizing the fixation of the oil flow direction, and avoiding the rotation of the cock body to prevent pipeline leakage accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a half-sectional view of the structure of the present invention;

[0019] Figure 2 is a schematic connection diagram of the fixed ring structure of the present invention;

[0020] Figure 3 is the present invention Figure 2 partial enlarged view;

[0021] Figure 4 is a schematic connection diagram of the moving block structure of the present invention;

[0022] Figure 5 is an exploded view of the connection of the moving block structure of the present invention;

[0023] Figure 6 is a half-sectional view of the connection of the handle structure of the present invention;

[0024] Figure 7 is a schematic diagram of the L-shaped plate structure of the present invention;

[0025] Figure 8 is an exploded view of the connection of the push column structure of the present invention;

[0026] Figure 9 is the present invention Figure 8 partial enlarged view.

[0027] In the figure: three-way stop valve body 1, plug body 2, valve stem 3, handle 4, fixing ring 5, annular groove 501, positioning groove 502, trapezoidal ring block 503, moving block 6, trapezoidal annular groove 601, moving groove 602, guiding groove 603, positioning block 604, guiding block 605, first spring 606, trapezoidal pushing groove 607, fixing post 608, L-shaped plate 7, first magnet 701, cover plate 702, pushing post 8, pushing plate 801, ball 802, first limiting block 803, second limiting block 804, second spring 805, sliding groove 806, shifting plate 807, round hole 808, sliding block 809, second magnet 810, clamping block 9, square groove 901, third spring 902. Detailed implementation manners

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0029] Please refer to Figures 1-9 , the present invention provides embodiments of the following three preferred solutions:

[0030] Embodiment 1: An oil pipe blowout preventer plug valve, comprising: a three-way plug valve body 1, a plug body 2 is movably arranged in the three-way plug valve body 1, the plug body 2 is fixedly connected to the valve stem 3 of the three-way plug valve body 1, and a handle 4 is fixedly arranged at the end of the valve stem 3; characterized in that: a positioning assembly is arranged on the three-way plug valve body 1, and the positioning assembly includes a fixed ring 5, a moving block 6, an L-shaped plate 7 and a push column 8; the fixed ring 5 is fixedly arranged on the outer wall of the three-way plug valve body 1, the valve stem 3 is located at the center of the fixed ring 5, a ring groove 501 is opened on the fixed ring 5, and a plurality of positioning grooves 502 are equidistantly and annularly opened on the outer circumferential wall of the ring groove 501, wherein three positioning grooves 502 are respectively oriented towards the three pipe openings of the three-way plug valve body 1, and a trapezoidal ring block 503 is fixedly arranged on the inner circumferential wall of the ring groove 501; the moving block 6 is movably arranged in the ring groove 501, one end of the moving block 6 is arranged in an arc shape, a trapezoidal ring groove 601 is arc-shapedly opened on the arc surface of the moving block 6, and the trapezoidal ring groove 601 is movably clamped with the trapezoidal ring block 503, and fixing columns 608 are symmetrically and fixedly arranged at the upper end of the moving block 6, and the other end of the fixing column 608 is fixedly connected to the handle 4; a moving groove 602 is opened on the side wall of the moving block 6, guiding grooves 603 are symmetrically opened on both side walls of the moving groove 602, a positioning block 604 is movably clamped in the moving groove 602, the positioning block 604 is inserted into the positioning groove 502, and a trapezoidal push groove 607 is opened at the upper end of the positioning block 604; guiding blocks 605 are symmetrically and fixedly arranged on both side walls of the positioning block 604, the guiding blocks 605 are movably clamped in the guiding grooves 603, a first spring 606 is fixedly arranged on the side wall of the positioning block 604, and the other end of the first spring 606 is fixedly connected to the side wall of the moving groove 602.

[0031] During use, the three pipelines of the three-way stopcock valve body 1 are connected to the oil pipeline. According to the oil transportation requirements, the handle 4 is rotated to control the rotation of the valve stem 3 and the plug body 2, thereby controlling the oil flow direction. During the operation process, through the setting of the fixed column 608, the moving block 6 rotates in the annular groove 501 of the fixed ring 5 as the handle 4 is adjusted and rotated. The trapezoidal annular groove 601 and the trapezoidal annular block 503 are movably clamped to ensure the stability of the rotation of the moving block 6. After the handle 4 is rotated to the designated position, the compressed first spring 606 is reset and cooperates with the guide block 605 to move in the guide groove 603, so that the positioning block 604 stably moves along the moving groove 602 and is inserted into the positioning groove 502, thereby fixing the rotation angle of the handle 4. The operation is simple and convenient, realizing the fixation of the position of the handle 4 and thus the fixation of the position of the plug body 2 in the three-way stopcock valve body 1, avoiding the rotation of the plug body 2 under the action of the oil transportation impact force. When the positioning block 604 is inserted into the positioning groove 502 facing the pipeline port of the three-way stopcock valve body 1, the oil transportation opening and closing state of the three-way stopcock valve body 1 is ensured to be stable, avoiding pipeline leakage accidents. At the same time, when the positioning block 604 is inserted into the positioning groove 502 that is not facing the pipeline port of the three-way stopcock valve body 1 after rotating a certain angle with the handle 4, the stability of the three-way stopcock valve body 1 during flow regulation and oil transportation is ensured.

[0032] Embodiment 2, on the basis of Embodiment 1: The L-shaped plate 7 is fixedly arranged on the upper side wall of the handle 4. The first magnetic blocks 701 are symmetrically and fixedly embedded on the inner walls of both sides of the L-shaped plate 7. The cover plate 702 is fixedly arranged on the side wall of the L-shaped plate 7. A push column 8 is movably arranged on the handle 4. The bottom end of the push column 8 penetrates through the handle 4 and is fixedly provided with a push plate 801. The bottom end of the push plate 801 is movably and equidistantly embedded with balls 802. The push plate 801 is movably clamped in the trapezoidal push groove 607. The balls 802 are in clamping contact with the inclined surface of the trapezoidal push groove 607. The push column 8 is fixedly sleeved with a first limit block 803, and the first limit block 803 is clamped with the bottom wall of the handle 4. The top end of the push column 8 penetrates through the cover plate 702 and is fixedly provided with a second limit block 804. The push column 8 is sleeved with a second spring 805, and both ends of the second spring 805 are clamped with the second limit block 804 and the cover plate 702 respectively. The chute 806 is symmetrically opened on the peripheral wall of the push column 8. The push column 8 is movably sleeved with the round hole 808 opened on the dial 807. The sliding blocks 809 are symmetrically and fixedly arranged on the peripheral wall of the round hole 808, and the sliding blocks 809 are movably clamped in the chute 806. The dial 807 is movably arranged inside the fold angle of the L-shaped plate 7. The end of the dial 807 is arc-shaped. The dial 807 is clamped with the inner side wall of the L-shaped plate 7. Both sides of the dial 807 are clamped with the handle 4 and the cover plate 702 respectively. The dial 807 is parallel to the push plate 801. The second magnetic blocks 810 are symmetrically and fixedly embedded on both side walls of the dial 807, and the second magnetic blocks 810 attract each other with the first magnetic blocks 701.

[0033] During use, when adjusting the oil flow direction, rotate the shifting plate 807 by 90 degrees so that it is clamped with the inner side wall of the L-shaped plate 7 until the second magnet 810 on one side of the shifting plate 807 attracts the first magnet 701 to fix the position of the shifting plate 807. The cover plate 702 limits the shifting plate 807 to ensure stable rotation of the shifting plate 807. During the operation, since the slider 809 is movably clamped in the chute 806, the push rod 8 and the push plate 801 rotate 90 degrees along with the shifting plate 807. At this time, the ball 802 at the bottom end of the push plate 801 is clamped and contacts with the inclined surface of the trapezoidal push groove 607. Then, press the second limiting block 804 to compress the second spring 805 to control the downward movement of the push rod 8 and the push plate 801. During this process, the slider 809 moves in the chute 806. When the push plate 801 moves downward, the push plate 80 and the ball 802 move along the inclined surface of the trapezoidal push groove 607, thereby pushing the positioning block 604 to move along the moving groove 602 to separate from the positioning groove 502, and the handle 4 can be unlocked to facilitate its rotation to adjust and control the oil flow direction. After the handle 4 is rotated to the specified position to adjust the oil flow direction, release the second limiting block 804, and the second spring 805 resets to push the second limiting block 804 upward, realizing the upward movement of the push rod 8 and the push plate 801 until the first limiting block 803 is clamped with the bottom wall of the handle 4 and then rotate the shifting plate 807 by 90 degrees in the reverse direction, so that the second magnet 810 on the other side of the shifting plate 807 attracts the first magnet 701 on the L-shaped plate 7 to fix the position of the shifting plate 807. At this time, the push plate 801 rotates 90 degrees in the reverse direction, so that the push plate 801 is clamped with the side wall of the trapezoidal push groove 607 and the push plate 801 is parallel to the transverse side walls of the trapezoidal push groove 607. At this time, the end of the push plate 801 points to the vertical side wall of the limiting trapezoidal push groove 607, thereby realizing that the push plate 801 cannot move downward and the positioning block 604 cannot move to separate from the positioning groove 502, further ensuring the fixed position of the handle 4, realizing the fixed oil flow direction, and preventing the plug body 2 from rotating to prevent pipeline leakage accidents.

[0034] Embodiment 3, on the basis of Embodiment 2: An auxiliary component is provided, and the auxiliary component includes a clamping block 9, a square groove 901 and a third spring 902; the square groove 901 is opened on the handle 4, the clamping block 9 is movably clamped in the square groove 901, a third spring 902 is fixedly arranged on the side wall of the clamping block 9, the other end of the third spring 902 is fixedly connected with the bottom wall of the square groove 901, the end face of the clamping block 9 is clamped with the cover plate 702, and the side wall of the clamping block 9 is clamped with the side wall of the shifting plate 807.

[0035] During use, the compressed third spring 902 resets and pushes the latch 9 upward to engage with the cover plate 702. At this time, the side wall of the latch 9 engages with the side wall of the dial plate 807, thereby limiting the rotation of the dial plate 807. When it is necessary to rotate the handle 4, press the latch 9 to compress the third spring 902 until the latch 9 retracts into the square groove 901 and separates from the dial plate 807. Then, the dial plate 807 can be unlocked and rotated. After the dial plate 807 rotates 90 degrees, release the latch 9. The third spring 902 resets and pushes the latch 9 to move, so that the dial plate 807 is limited again, further ensuring the fixed position of the dial plate 807 and facilitating the control of the unlocking state or the fixed state of the handle 4.

[0036] Although the above-described illustrative specific embodiments of the present application have been described to enable those skilled in the art to understand the present application, the present application is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes are within the spirit and scope of the present application defined and determined by the appended claims, all applications and creations using the concept of the present application are within the scope of protection.

Claims

1. A tubing blowout preventer swivel valve, comprising: Three-way stop valve body (1), a plug body (2) is movably arranged inside the three-way stop valve body (1), the plug body (2) is fixedly connected to the valve stem (3) of the three-way stop valve body (1), and a handle (4) is fixedly arranged at the end of the valve stem (3); It is characterized in that: a positioning assembly is arranged on the three-way stop valve body (1), and the positioning assembly includes a fixed ring (5), a moving block (6), an L-shaped plate (7) and a push column (8).

2. The tubing blowout preventer swivel plug valve according to claim 1, wherein: The fixed ring (5) is fixedly arranged on the outer wall of the three-way stop valve body (1), the valve stem (3) is located at the center of the fixed ring (5), a ring groove (501) is formed on the fixed ring (5), and a number of positioning grooves (502) are equidistantly and annularly arranged on the outer circumferential wall of the ring groove (501), and three of the positioning grooves (502) are respectively oriented towards the three pipe openings of the three-way stop valve body (1), and a trapezoidal ring block (503) is fixedly arranged on the inner circumferential wall of the ring groove (501).

3. The blowout preventer swivel plug valve according to claim 1, wherein: The moving block (6) is movably arranged in the ring groove (501), one end of the moving block (6) is arranged in an arc shape, a trapezoidal ring groove (601) is formed in an arc shape on the arc surface of the moving block (6), and the trapezoidal ring groove (601) is movably clamped with the trapezoidal ring block (503), and fixing columns (608) are symmetrically and fixedly arranged at the upper end of the moving block (6), and the other ends of the fixing columns (608) are fixedly connected to the handle (4).

4. The tubing blowout preventer swivel plug valve according to claim 3, characterized in that: A moving groove (602) is formed on the side wall of the moving block (6), guiding grooves (603) are symmetrically formed on both side walls of the moving groove (602), a positioning block (604) is movably clamped in the moving groove (602), the positioning block (604) is inserted into the positioning groove (502), and a trapezoidal push groove (607) is formed at the upper end of the positioning block (604).

5. The tubing blowout preventer swivel plug valve according to claim 4, characterized in that: Guiding blocks (605) are symmetrically and fixedly arranged on both side walls of the positioning block (604), the guiding blocks (605) are movably clamped in the guiding grooves (603), a first spring (606) is fixedly arranged on the side wall of the positioning block (604), and the other end of the first spring (606) is fixedly connected to the side wall of the moving groove (602).

6. The tubing blowout preventer swivel plug valve according to claim 1, wherein: The L-shaped plate (7) is fixedly arranged on the upper side wall of the handle (4), first magnetic blocks (701) are symmetrically and fixedly embedded on both inner side walls of the L-shaped plate (7), and a cover plate (702) is fixedly arranged on the side wall of the L-shaped plate (7).

7. The tubing blowout preventer swivel plug valve according to claim 1, characterized in that: A push column (8) is movably arranged on the handle (4), a push plate (801) is fixedly arranged at the bottom end of the push column (8) through the handle (4), balls (802) are movably embedded at equal intervals at the bottom end of the push plate (801), the push plate (801) is movably clamped in the trapezoidal push groove (607), and the balls (802) are in clamping contact with the inclined surface of the trapezoidal push groove (607), and a first limiting block (803) is fixedly sleeved on the push column (8), and the first limiting block (803) is clamped with the bottom wall of the handle (4).

8. The tubing blowout preventer swivel plug valve according to claim 7, characterized in that: A second limiting block (804) is fixedly arranged at the top end of the push column (8) through the cover plate (702), a second spring (805) is sleeved on the push column (8), and both ends of the second spring (805) are respectively clamped with the second limiting block (804) and the cover plate (702).

9. The tubing blowout preventer plug valve according to claim 8, wherein: Symmetrically arranged sliding grooves (806) are formed on the peripheral wall of the push post (8). The push post (8) is movably sleeved in a circular hole (808) formed in the dial plate (807). Symmetrically fixed sliders (809) are arranged on the peripheral wall of the circular hole (808), and the sliders (809) are movably clamped in the sliding grooves (806).

10. A tubing blowout preventer swivel plug valve according to claim 9, characterized in that: The dial plate (807) is movably arranged inside the fold angle of the L-shaped plate (7). The end of the dial plate (807) is arc-shaped. The dial plate (807) is clamped with the inner side wall of the L-shaped plate (7). The two sides of the dial plate (807) are respectively clamped with the handle (4) and the cover plate (702). The dial plate (807) is arranged parallel to the push plate (801). Symmetrically fixed and embedded second magnets (810) are arranged on the two side walls of the dial plate (807), and the second magnets (810) attract the first magnets (701).

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