CN110748321A - Anti-theft valve for petroleum well head - Google Patents
Anti-theft valve for petroleum well head Download PDFInfo
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- CN110748321A CN110748321A CN201911077514.6A CN201911077514A CN110748321A CN 110748321 A CN110748321 A CN 110748321A CN 201911077514 A CN201911077514 A CN 201911077514A CN 110748321 A CN110748321 A CN 110748321A
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- oil
- gear
- opening
- sliding plate
- valve body
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- 239000003208 petroleum Substances 0.000 title claims abstract description 31
- 238000007789 sealing Methods 0.000 claims abstract description 64
- 238000003860 storage Methods 0.000 claims abstract description 18
- 239000003129 oil well Substances 0.000 claims description 18
- 230000002146 bilateral effect Effects 0.000 claims description 5
- 230000001174 ascending effect Effects 0.000 claims 1
- 238000011084 recovery Methods 0.000 description 4
- 238000000605 extraction Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/02—Valve arrangements for boreholes or wells in well heads
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
- E21B41/0021—Safety devices, e.g. for preventing small objects from falling into the borehole
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Transmission Devices (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The invention discloses an anti-theft valve for a petroleum well mouth, which comprises a well cover, wherein the well cover is fixedly arranged at the upper end of the ground, a petroleum well with an upward opening is arranged in the ground, an oil storage cavity with a downward opening is arranged in the well cover, the oil storage cavity is opposite to the petroleum well, a through hole with an upward opening is arranged in the inner wall of the upper side of the oil storage cavity in a communicating manner, the anti-theft valve is arranged at the open petroleum well mouth, the anti-theft valve is large in size and not easy to move or damage, a sealing channel in the anti-theft valve is provided with a unique opening position, so that a stolen person is prevented from being easily opened, and when the opening mode is wrong, the sealing channel is closed, and oil in the petroleum.
Description
Technical Field
The invention relates to the field of petroleum wells, in particular to an anti-theft valve for a petroleum well head.
Background
The invention relates to a theft-proof valve for a petroleum well head, which can solve the problems, wherein the petroleum is a viscous and dark brown liquid, is called as industrial blood, is widely applied in daily life and production, is one of the main objects of geological exploration, is a non-renewable energy source and has long generation time, so the petroleum exploitation supply of the whole world is far greater than the demand, and the price of the petroleum is high, the general exploitation method is to drill a well on an oil field and pump the petroleum, because the general petroleum well head is open, the petroleum can be stolen by people and the supply and demand relation of the petroleum in the society is influenced, the theft-proof valve for the petroleum well head is disclosed by the invention and can be arranged at the open petroleum well head, and the device has larger size and is not easy to move or damage, a sealed channel in the device has a unique opening position to avoid being easily opened by the stolen people, when the opening mode is wrong, the sealing channel is closed, and oil in the oil well cannot be pumped out.
Disclosure of Invention
The technical problem is as follows:
open oil wells are easily stolen with oil, which affects the supply and demand relationship of oil in the market.
In order to solve the problems, the anti-theft valve for the petroleum well head comprises a well cover, wherein the well cover is fixedly arranged at the upper end of the ground, the petroleum well with an upward opening is arranged in the ground, an oil storage cavity with a downward opening is arranged in the well cover, the oil storage cavity is opposite to the petroleum well, a through hole with an upward opening is formed in the inner wall of the upper side of the oil storage cavity in a communicating mode, a valve body is rotatably arranged on the upper side of the well cover, connecting cavities with openings deviating from a symmetry center are symmetrically arranged in the valve body in an up-and-down mode, the upper end of the well cover extends into the connecting cavity on the lower side and is rotatably connected with the valve body, a sealing box is rotatably arranged on the upper side of the valve body, the lower end of the sealing box extends into the connecting cavity on the upper side and is rotatably connected with the valve body, the lower side opening of the sealing channel is positioned at the rotating center of the valve body, the upper side opening of the sealing channel is positioned at the non-rotating center of the valve body, an oil outlet channel is arranged in the sealing box in a vertically through mode, the lower side opening of the oil outlet channel is right opposite to the upper side opening of the sealing channel, the upper side opening of the oil outlet channel is positioned at the center of the sealing box, the upper end and the lower end of the valve body are symmetrical and fixedly connected with a connecting pipeline, the connecting pipeline is respectively right opposite to the upper side opening and the lower side opening of the sealing channel, one end, away from the symmetrical center, of the connecting pipeline is respectively abutted against the well cover and the sealing box, an oil channel is arranged in the connecting pipeline in a vertically through mode, the oil outlet channel and the through hole are communicated with the sealing channel through the oil channel, a sealing device is arranged in the valve, the rotary and slidable sliding plate is arranged on the upper side of the ground, the sliding plate is slidably connected with the well cover, a limiting cavity with an upward opening is formed in the sliding plate, the sliding plate slides and enables the valve body to slide into the limiting cavity and be meshed with the sliding plate, meanwhile, the sealing device can be driven, rotating devices are arranged on the left side and the right side of the sliding plate, the sealing device can drive the sliding plate to rotate, lifting devices are connected to the left end and the right end of the sliding plate, and the lifting devices can drive the sliding plate to slide. Preferably, the limiting cavity is internally provided with six key grooves with upward openings in an annular array distribution and communicated with each other, the valve body is circumferentially and fixedly connected with six fixed keys in an annular array distribution on the circumferential surface, the fixed keys can slide into the key grooves and are connected with the sliding plate, and at the moment, the sliding plate rotates and drives the valve body to rotate through the fixed keys.
Preferably, the seal box upper end has linked firmly the oil-well pump, works as the seal channel with when producing oil the passageway intercommunication, start the oil-well pump, and then the accessible produce oil the passageway the oil passageway the seal channel the through-hole and the oil storage chamber is followed extract oil in the oil well, oil storage chamber can temporarily store oil, avoids oil extraction speed too fast.
Beneficially, the sealing device comprises telescopic rods which are bilaterally symmetrical and fixedly connected to the inner wall of the lower side of the limiting cavity, six guide holes with downward openings are distributed in the valve body in an annular array mode, six gear cavities are arranged in the valve body, the left three guide holes are communicated with the inner wall of the left three gear cavities on one side in the anticlockwise direction, the right three guide holes are communicated with the inner wall of the right three gear cavities on one side in the clockwise direction, connecting gears are rotatably arranged in the left two gear cavities and the right two gear cavities, racks are fixedly arranged in the rear end face of the telescopic rod, the connecting gears on the left side and the right side can be respectively meshed with the racks on the left side and the right side, the angle between the two gear cavities without the connecting gears on the left side and the right side is 180 degrees, and screws are fixedly connected in the four, four gear cavities with the connecting gears are provided with a recovery cavity in the inner wall of one side close to the sealing channel, the recycling cavity is communicated with the sealing channel, a baffle is arranged in the recycling cavity in a sliding way, a threaded hole with an opening facing the connecting gear is arranged in the baffle plate, the screw rod extends into the threaded hole and is in threaded connection with the baffle plate, the sliding plate slides up and drives the telescopic rod to slide up and extend into the guide hole, when the rack is meshed with the connecting gear, the rack slides upwards and drives the connecting gear to rotate, the baffle is driven by the screw to slide into the sealing channel so as to seal the sealing channel, and at the moment, the petroleum can not be pumped out, when the telescopic rod slides upwards and the connecting gear is not meshed with the rack, the sealing channel is in an open state, and oil can be extracted.
Advantageously, the rotating device comprises a sliding gear rotatably and slidably disposed on the upper side of the ground, the sliding gear is fixedly connected to the sliding plate, the sliding gear is provided with a fixed gear at the left end and the right end thereof, which are engaged with each other, the lower end of the fixed gear is fixedly connected with a rotating shaft, the rotating motors are symmetrically and fixedly disposed in the ground, the lower ends of the two rotating shafts are respectively and dynamically connected to the rotating motors at the two sides, the rotating motors are started, and the fixed gear is driven to rotate through the rotating shafts, so that the sliding gear is driven to rotate, so that the sliding plate is driven to rotate, and the rotating angle of the sliding plate is between 0 and 180 °.
Beneficially, the lifting device comprises a cavity which is bilaterally symmetrical and is arranged in the ground, a driving pulley is rotatably arranged in the cavity, a motor shaft is fixedly connected in the driving pulley, a lifting motor is fixedly arranged in the inner wall of the rear side of the cavity, the rear end of the motor shaft is in power connection with the lifting motor, the upper end of the ground is bilaterally symmetrical and is fixedly connected with a fixing rod, a belt groove with a downward opening is arranged in the fixing rod, a driven pulley is rotatably arranged in the belt groove, a connecting shaft is fixedly connected in the driven pulley, a connecting belt is connected between the driven pulley and the driving pulley, the fixing rod is provided with a connecting rod which is close to one side of the symmetry center in a swinging manner, a through groove with an opening deviating from the symmetry center is vertically communicated in the connecting rod, the front end and the rear end of the connecting shaft are fixedly connected to the inner walls of the, the angle of the arc groove is 180 degrees, a sliding block is arranged in the arc groove in a sliding way, a groove with an opening towards the rotation center of the sliding plate is arranged in the sliding block, the inner wall of one side of the arc groove, which is close to the symmetry center, extends into the groove and is connected with the sliding block, so that the sliding block is prevented from being separated from the arc groove, the rear end of the sliding block is fixedly connected with a sliding guide shaft, a limiting groove with a forward opening is arranged in the connecting rod, the rear end of the sliding guide shaft extends into the limiting groove and can slide along the limiting groove, the lifting motor is started, the driving belt wheel is driven by the motor shaft to rotate, the driven belt wheel is driven by the connecting belt to rotate, the connecting rod is driven by the connecting shaft to swing, the sliding block is driven by the sliding guide shaft to slide up and down, the sliding plate is driven to slide, the guide sliding shaft can slide along the limiting groove.
The invention has the beneficial effects that: the oil pumping device is arranged at an open oil well, the device is large in size and not easy to move or damage, the sealing channel in the device has a unique opening position, so that a stolen person is prevented from opening the device easily, and when the opening mode is wrong, the sealing channel is closed, so that oil in the oil well cannot be pumped out.
Drawings
For ease of illustration, the invention is described in detail by the following specific examples and figures.
Fig. 1 is a schematic view of the overall structure of an anti-theft valve for an oil well head according to the present invention;
FIG. 2 is a schematic view of the structure in the direction "A-A" of FIG. 1;
FIG. 3 is a schematic view of the structure in the direction "B-B" of FIG. 1;
FIG. 4 is an enlarged schematic view of "C" of FIG. 1;
FIG. 5 is an enlarged schematic view of "D" of FIG. 1;
FIG. 6 is a schematic view of the structure in the direction "E-E" of FIG. 4;
FIG. 7 is a schematic view of the structure in the direction "F-F" of FIG. 4;
FIG. 8 is a schematic view of the structure in the direction "G-G" of FIG. 5;
FIG. 9 is a schematic view of the structure in the direction "H-H" of FIG. 5.
Detailed Description
The invention will now be described in detail with reference to fig. 1-9, for ease of description, the orientations described below will now be defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
The invention relates to an anti-theft valve for a petroleum wellhead, which is mainly applied to the anti-theft of an open petroleum wellhead, and the invention is further explained by combining the attached drawings of the invention:
the invention relates to an anti-theft valve for a petroleum wellhead, which comprises a well cover 14, wherein the well cover 14 is fixedly arranged at the upper end of the ground 17, a petroleum well 15 with an upward opening is arranged in the ground 17, an oil storage cavity 16 with a downward opening is arranged in the well cover 14, the oil storage cavity 16 is right opposite to the petroleum well 15, a through hole 31 with an upward opening is arranged in the inner wall of the upper side of the oil storage cavity 16 in a communicating manner, a valve body 54 is rotatably arranged at the upper side of the well cover 14, a connecting cavity 43 with an opening deviating from the symmetrical center is arranged in the valve body 54 in an up-and-down symmetrical manner, the upper end of the well cover 14 extends into the connecting cavity 43 at the lower side and is rotatably connected with the valve body 54, a sealing box 29 is rotatably arranged at the upper side of the valve body 54, the lower end of the sealing box 29 extends into the connecting cavity 43 at, the lower side opening of the sealing channel 42 is located at the rotating center of the valve body 54, the upper side opening of the sealing channel 42 is located at the non-rotating center of the valve body 54, the oil outlet channel 30 is arranged in the seal box 29 and runs through from top to bottom, the lower side opening of the oil outlet channel 30 is just opposite to the upper side opening of the sealing channel 42, the upper side opening of the oil outlet channel 30 is located at the center of the seal box 29, the upper end and the lower end of the valve body 54 are symmetrical and are fixedly connected with the connecting pipeline 41, the connecting pipeline 41 is respectively just opposite to the upper side opening and the lower side opening of the sealing channel 42, one end of the connecting pipeline 41 far away from the symmetrical center is respectively abutted against the well lid 14 and the seal box 29, the oil channel 40 is arranged in the connecting pipeline 41 and runs through from top to bottom, the oil outlet channel 30 and the through hole 31 are communicated with the, the sealing channel 42 can be closed or opened by the sealing device 100, the upper side of the ground 17 is rotatably and slidably provided with a sliding plate 39, the sliding plate 39 is slidably connected with the manhole cover 14, a limiting cavity 49 with an upward opening is arranged in the sliding plate 39, the sliding plate 39 slides and can enable the valve body 54 to slide into the limiting cavity 49 and be engaged and connected with the sliding plate 39, the sealing device 100 can be driven, the sliding plate 39 is provided with rotating devices 101 at the left and right sides, the sealing device 100 can drive the sliding plate 39 to rotate, lifting devices 102 are connected at the left and right ends of the sliding plate 39, and the lifting devices 102 can drive the sliding plate 39 to slide.
Advantageously, six key slots 51 with upward openings are distributed and communicated in an annular array in the circular inner wall of the limiting chamber 49, six fixing keys 53 are distributed and connected in an annular array on the circumferential periphery of the valve body 54, the fixing keys 53 can slide into the key slots 51 and are connected with the sliding plate 39, and the sliding plate 39 rotates and drives the valve body 54 to rotate through the fixing keys 53.
Advantageously, an oil pump 56 is attached to the upper end of the seal box 29, when the seal channel 42 is communicated with the oil outlet channel 30, the oil pump 56 is activated, so that oil can be extracted from the oil well 15 through the oil outlet channel 30, the oil channel 40, the seal channel 42, the through hole 31 and the oil storage chamber 16, and the oil storage chamber 16 can temporarily store oil, thereby avoiding the oil extraction speed from being too fast.
According to the embodiment, the sealing device 100 is described in detail below, the sealing device 100 includes two laterally symmetrical telescopic rods 47 fixedly connected to the inner wall of the lower side of the limiting chamber 49, the annular array of the six guide holes 55 distributed in the valve body 54 is provided with six gear chambers 48 arranged in the valve body 54, the three guide holes 55 on the left side are communicated with the inner wall of the three gear chambers 48 on the left side along the counterclockwise direction, the three guide holes 55 on the right side are communicated with the inner wall of the three gear chambers 48 on the right side along the clockwise direction, the two gear chambers 48 on the left side and the two gear chambers 48 on the right side are rotatably provided with connecting gears 52, a rack 57 is fixedly arranged in the rear end surface of the telescopic rod 47, the connecting gears 52 on the left side and the right side can be respectively engaged with the rack 57 on the left side and the right, the angle between the two gear cavities 48 without the connecting gear 52 on the left and right sides is 180 degrees, four connecting gears 52 are fixedly connected with a screw 50, a recovery cavity 44 is arranged in the inner wall of one side of the four gear cavities 48 with the connecting gears 52 close to the sealed channel 42, the recovery cavity 44 is communicated with the sealed channel 42, a baffle 46 is slidably arranged in the recovery cavity 44, a threaded hole 45 with an opening facing the connecting gear 52 is arranged in the baffle 46, the screw 50 extends into the threaded hole 45 and is in threaded connection with the baffle 46, the sliding plate 39 slides up and drives the telescopic rod 47 to slide up and extend into the guide hole 55, when the rack 57 is meshed with the connecting gear 52, the rack 57 slides up and drives the connecting gear 52 to rotate, and further drives the baffle 46 to slide into the sealed channel 42 through the screw 50, the sealed passage 42 is closed, and oil cannot be extracted, and when the telescopic rod 47 slides up and the connecting gear 52 is not engaged with the rack 57, the sealed passage 42 is in an open state, and oil can be extracted.
According to an embodiment, the rotating device 101 is described in detail below, the rotating device 101 includes a sliding gear 28 rotatably and slidably disposed on the upper side of the ground 17, the sliding gear 28 is fixedly connected to the sliding plate 39, the sliding gear 28 is provided with a fixed gear 13 engaged with the left and right ends of the sliding gear 28, the lower end of the fixed gear 13 is fixedly connected to a rotating shaft 12, the rotating motors 11 are fixedly disposed in the ground 17 in a left-right symmetrical manner, the lower ends of the two rotating shafts 12 are respectively and dynamically connected to the rotating motors 11 on both sides, the rotating motors 11 are started, and the rotating shafts 12 drive the fixed gear 13 to rotate, and further drive the sliding gear 28 to rotate, and further drive the sliding plate 39 to rotate, and the rotation angle of the sliding plate 39 is between 0 ° and 180 °.
According to the embodiment, the following description is made in detail on the lifting device 102, the lifting device 102 comprises a cavity 18 which is arranged in the ground 17 in a bilateral symmetry manner, a driving belt wheel 19 is rotatably arranged in the cavity 18, a motor shaft 20 is fixedly connected in the driving belt wheel 19, a lifting motor 33 is fixedly arranged in the inner wall of the rear side of the cavity 18, the rear end of the motor shaft 20 is in power connection with the lifting motor 33, a fixing rod 21 is fixedly connected in the upper end of the ground 17 in a bilateral symmetry manner, a belt groove 23 with a downward opening is arranged in the fixing rod 21, a driven belt wheel 25 is rotatably arranged in the belt groove 23, a connecting shaft 24 is fixedly connected in the driven belt wheel 25, a connecting belt 22 is connected between the driven belt wheel 25 and the driving belt wheel 19, a connecting rod 27 is arranged on one side of the fixing rod 21 in a swinging manner, and a through groove 26 with an, the front end and the rear end of the connecting shaft 24 are fixedly connected to the inner walls of the front side and the rear side of the through groove 26, the sliding plate 39 is provided with an arc groove 38 with an upward opening and an opening deviating from the rotation center of the sliding plate 39 in a bilateral symmetry manner, the angle of the arc groove 38 is 180 degrees, the arc groove 38 is provided with a sliding block 35 in a sliding manner, the sliding block 35 is provided with a groove 37 with an opening facing the rotation center of the sliding plate 39, the inner wall of the arc groove 38 close to one side of the symmetry center extends into the groove 37 and is connected with the sliding block 35, so that the sliding block 35 is prevented from being separated from the arc groove 38, the rear end of the sliding block 35 is fixedly connected with a guide sliding shaft 36, the connecting rod 27 is provided with a limiting groove 34 with a forward opening, the rear end of the guide sliding shaft 36 extends into the limiting groove 34 and can slide along the limiting, the connecting belt 22 further drives the driven pulley 25 to rotate, and further drives the connecting rod 27 to swing through the connecting shaft 24, and further drives the sliding block 35 to slide up and down through the sliding guide shaft 36, and further drives the sliding plate 39 to slide up and down, and in the sliding process of the sliding block 35 driven by the connecting rod 27, the sliding guide shaft 36 can slide along the limiting groove 34.
The following detailed description of the steps of using an anti-theft valve for a petroleum wellhead will be described with reference to fig. 1 to 9:
initially, the sliding plate 39 is in the lower limit position, in which the telescopic rod 47 does not extend into the guide hole 55, in which the blocking plate 46 does not slide into the sealing channel 42, in which the sealing channel 42 is in the open state, in which the sealing channel 42 is not in communication with the oil outlet channel 30, and in which the valve body 54 is not connected to the sliding plate 39.
When the device is used, the rotating motor 11 is started, the fixed gear 13 is driven to rotate through the rotating shaft 12, the sliding gear 28 is driven to rotate, the sliding plate 39 is driven to rotate, the telescopic rods 47 on the two sides are driven to rotate, the sliding block 35 slides along the arc groove 38, the rotating range of the sliding plate 39 is 0-180 degrees, the telescopic rods 47 on the two sides are respectively opposite to the guide holes 55 on the two sides, the rotating motor 11 is stopped, the lifting motor 33 is started, the driving belt wheel 19 is driven to rotate through the motor shaft 20, the driven belt wheel 25 is driven to rotate through the connecting belt 22, the connecting rod 27 is driven to swing through the connecting shaft 24, the sliding block 35 is driven to slide upwards through the guide sliding shaft 36, the sliding plate 39 is driven to slide upwards, the telescopic rods 47 are driven to slide upwards and extend into the guide holes 55, until the fixed key 53 slides into the key groove 51 and is connected with the, thereby re-driving the sliding plate 39 to rotate and further driving the valve body 54 to rotate through the fixed key 53 until the sealing passage 42 is communicated with the oil outlet passage 30.
When the telescopic rod 47 slides upwards, the connecting gear 52 is not meshed with the rack 57, the sealing channel 42 is in an open state, the oil pump 56 is started after the sealing channel 42 is communicated with the oil outlet channel 30, the oil channel 40, the sealing channel 42, the through hole 31 and the oil storage cavity 16 to extract oil from the oil well 15, after the oil extraction is finished, the rotating motor 11 and the lifting motor 33 are reversely started, the oil outlet channel 30 is not communicated with the sealing channel 42, the oil in the sealing channel 42, the through hole 31 and the oil storage cavity 16 flows back to the oil well 15 again until the device returns to the initial position, when the telescopic rod 47 slides upwards, the connecting gear 52 is meshed with the rack 57, the rack 57 slides upwards and drives the connecting gear 52 to rotate, the screw 50 drives the baffle 46 to slide into the sealing channel 42 and close the sealing channel 42, at this time, the oil pump 56 is started and the oil cannot be pumped from the oil well 15, and at this time, the lifting motor 33 cannot be started reversely to drive the sliding plate 39 to slide downwards, and the sealing channel 42 is always in a closed state, so that the oil cannot be stolen from the oil well 15.
The invention has the beneficial effects that: the oil pumping device is arranged at an open oil well, the device is large in size and not easy to move or damage, the sealing channel in the device has a unique opening position, so that a stolen person is prevented from opening the device easily, and when the opening mode is wrong, the sealing channel is closed, so that oil in the oil well cannot be pumped out.
In the above manner, a person skilled in the art can make various changes depending on the operation mode within the scope of the present invention.
Claims (6)
1. An anti-theft valve for an oil well mouth comprises a well cover; the well cover is fixedly arranged at the upper end of the ground, a petroleum well with an upward opening is arranged in the ground, an oil storage cavity with a downward opening is arranged in the well cover, the oil storage cavity is right opposite to the petroleum well, a through hole with an upward opening is arranged in the inner wall of the upper side of the oil storage cavity in a communicating manner, a valve body is rotatably arranged at the upper side of the well cover, connecting cavities with openings deviating from the symmetry center are symmetrically arranged in the valve body in an up-and-down manner, the upper end of the well cover extends into the connecting cavity at the lower side and is rotatably connected with the valve body, a seal box is rotatably arranged at the upper side of the valve body, and the lower end of the; the valve body is internally provided with a sealing channel which is communicated up and down, an opening at the lower side of the sealing channel is positioned at the rotating center of the valve body, an opening at the upper side of the sealing channel is positioned at the non-rotating center of the valve body, an oil outlet channel is communicated up and down in the sealing box, an opening at the lower side of the oil outlet channel is opposite to an opening at the upper side of the sealing channel, an opening at the upper side of the oil outlet channel is positioned at the center of the sealing box, the upper end and the lower end of the valve body are symmetrical and fixedly connected with connecting pipelines, the connecting pipelines are respectively opposite to openings at the upper side and the lower side of the sealing channel, one end of the connecting pipeline, which is far away from the symmetrical center, is respectively abutted against the well cover and the sealing box, an oil channel is communicated up and down; the sealing device is arranged in the valve body, the sealing channel can be closed or opened through the sealing device, the upper side of the ground can be rotated and can be slidably provided with a sliding plate, the sliding plate is slidably connected with the well cover, a limiting cavity with an upward opening is formed in the sliding plate, the sliding plate slides and can enable the valve body to slide into the limiting cavity and be meshed with the sliding plate, meanwhile, the sealing device can be driven, rotating devices are arranged on the left side and the right side of the sliding plate, the sealing device can drive the sliding plate to rotate, lifting devices are connected to the left end and the right end of the sliding plate, and the lifting devices can drive the sliding plate to.
2. An anti-theft valve for an oil wellhead as claimed in claim 1, wherein: annular array distributes and is linked together in the circular inner wall of restriction chamber and is equipped with six ascending keyways of opening, annular array distributes and has linked firmly six fixed keys on the valve body circumference is global.
3. An anti-theft valve for an oil wellhead as claimed in claim 1, wherein: the upper end of the seal box is fixedly connected with an oil well pump.
4. An anti-theft valve for an oil wellhead as claimed in claim 1, wherein: the sealing device comprises telescopic rods which are bilaterally symmetrical and fixedly connected to the inner wall of the lower side of the limiting cavity; six guide holes with downward openings are distributed in the valve body in an annular array manner, six gear cavities are arranged in the valve body, three guide holes on the left side are communicated with the inner walls of three gear cavities on the left side along one side in the anticlockwise direction, three guide holes on the right side are communicated with the inner walls of three gear cavities on the right side along one side in the clockwise direction, and connecting gears are rotatably arranged in the two gear cavities on the left side and the two gear cavities on the right side; a rack is fixedly arranged in the rear end face of the telescopic rod, the connecting gears on the left side and the right side can be respectively meshed with the racks on the left side and the right side, and the angle between the two gear cavities without the connecting gears on the left side and the right side is 180 degrees; four the connecting gear internal fixation has the screw rod, four have the gear chamber of connecting gear is close to be equipped with in the inner wall of sealed passageway one side and retrieve the chamber, retrieve the chamber be linked together in sealed passageway, it is equipped with the baffle to retrieve intracavity slidable, be equipped with the opening orientation in the baffle the screw hole of connecting gear, the screw rod extends to in the screw hole and with baffle threaded connection.
5. An anti-theft valve for an oil wellhead as claimed in claim 1, wherein: the rotating device comprises a sliding gear which is arranged on the upper side of the ground in a rotatable and slidable manner, the sliding gear is fixedly connected with the sliding plate, a fixed gear is arranged at the left end and the right end of the sliding gear in a meshed manner, the lower end of the fixed gear is fixedly connected with a rotating shaft, rotating motors are fixedly arranged in the ground in a bilateral symmetry manner, and the lower ends of the rotating shafts are respectively in power connection with the rotating motors at two sides.
6. An anti-theft valve for an oil well head according to claim 5, characterized in that: the lifting device comprises cavities which are arranged in the ground in a bilateral symmetry mode, a driving belt wheel is rotatably arranged in each cavity, a motor shaft is fixedly connected in each driving belt wheel, a lifting motor is fixedly arranged in the inner wall of the rear side of each cavity, and the rear end of each motor shaft is connected to the lifting motor in a power mode; the ground is characterized in that the upper end of the ground is bilaterally symmetrical and fixedly connected with a fixing rod, a belt groove with a downward opening is arranged in the fixing rod, a driven belt wheel is rotatably arranged in the belt groove, a connecting shaft is fixedly connected in the driven belt wheel, and a connecting belt is connected between the driven belt wheel and the driving belt wheel; a connecting rod is arranged on one side, close to the symmetry center, of the fixed rod in a swinging manner, a through groove with an opening deviating from the symmetry center is formed in the connecting rod in a vertically through manner, and the front end and the rear end of the connecting shaft are fixedly connected to the inner walls of the front side and the rear side of the through groove; the sliding plate is provided with arc grooves which are bilaterally symmetrical and provided with upward openings and are far away from the rotating center of the sliding plate, the angle of each arc groove is 180 degrees, sliding blocks are arranged in the arc grooves in a sliding mode, grooves with openings facing the rotating center of the sliding plate are formed in the sliding blocks, and the inner walls of the arc grooves, close to the symmetrical center, extend into the grooves and are connected with the sliding blocks, so that the sliding blocks are prevented from being separated from the arc grooves; the rear end of the sliding block is fixedly connected with a guide sliding shaft, a limiting groove with a forward opening is formed in the connecting rod, and the rear end of the guide sliding shaft extends into the limiting groove and can slide along the limiting groove.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911077514.6A CN110748321B (en) | 2019-11-06 | 2019-11-06 | Anti-theft valve for petroleum well head |
| JP2020051563A JP6860760B1 (en) | 2019-11-06 | 2020-03-23 | Anti-theft valve for oil well mouth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911077514.6A CN110748321B (en) | 2019-11-06 | 2019-11-06 | Anti-theft valve for petroleum well head |
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| Publication Number | Publication Date |
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| CN110748321A true CN110748321A (en) | 2020-02-04 |
| CN110748321B CN110748321B (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911077514.6A Active CN110748321B (en) | 2019-11-06 | 2019-11-06 | Anti-theft valve for petroleum well head |
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Cited By (1)
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|---|---|---|---|---|
| CN113865794A (en) * | 2021-09-02 | 2021-12-31 | 江苏雄越石油机械设备制造有限公司 | High-pressure valve for fracturing wellhead device and performance testing device thereof |
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| CN113153407B (en) * | 2021-05-03 | 2023-08-15 | 内蒙古上海庙矿业有限责任公司 | Mine ventilation explosion-proof well lid |
| CN114000856B (en) * | 2021-11-01 | 2024-05-07 | 跃丰阀门制造有限公司 | Valve for petroleum exploitation pipeline |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP6860760B1 (en) | 2021-04-21 |
| CN110748321B (en) | 2020-07-28 |
| JP2021075994A (en) | 2021-05-20 |
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Effective date of registration: 20200701 Address after: No.20, Emeishan Road, Dongying District, Dongying City, Shandong Province Applicant after: DONGYING HUACHEN PETROLEUM EQUIPMENT Co.,Ltd. Address before: 312300 No.13 Yongliang Road, Yonghe Town, Shangyu District, Shaoxing City, Zhejiang Province Applicant before: Shaoxing Shangyu Xuefeng Energy Technology Co.,Ltd. |
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Denomination of invention: An anti-theft valve for oil wellhead Effective date of registration: 20231113 Granted publication date: 20200728 Pledgee: Dongying Branch of China Postal Savings Bank Co.,Ltd. Pledgor: DONGYING HUACHEN PETROLEUM EQUIPMENT Co.,Ltd. Registration number: Y2023980065497 |
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