CN113431522A - Oil field wellhead device capable of synchronously opening gate valve - Google Patents
Oil field wellhead device capable of synchronously opening gate valve Download PDFInfo
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- CN113431522A CN113431522A CN202110977926.6A CN202110977926A CN113431522A CN 113431522 A CN113431522 A CN 113431522A CN 202110977926 A CN202110977926 A CN 202110977926A CN 113431522 A CN113431522 A CN 113431522A
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- 230000008878 coupling Effects 0.000 claims description 11
- 238000010168 coupling process Methods 0.000 claims description 11
- 238000005859 coupling reaction Methods 0.000 claims description 11
- 230000000149 penetrating effect Effects 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 8
- 238000005096 rolling process Methods 0.000 claims description 7
- 230000001050 lubricating effect Effects 0.000 claims description 6
- 230000002146 bilateral effect Effects 0.000 claims description 2
- 239000003208 petroleum Substances 0.000 abstract description 8
- 239000003921 oil Substances 0.000 description 49
- 239000010687 lubricating oil Substances 0.000 description 9
- 238000009434 installation Methods 0.000 description 5
- 244000309464 bull Species 0.000 description 4
- 235000003283 Pachira macrocarpa Nutrition 0.000 description 3
- 241001083492 Trapa Species 0.000 description 3
- 235000014364 Trapa natans Nutrition 0.000 description 3
- 235000009165 saligot Nutrition 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/16—Control means therefor being outside the borehole
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Abstract
The invention belongs to the technical field of oil gas development well head devices, and particularly relates to an oil field well head device capable of synchronously opening a gate valve. According to the invention, the driving mechanism is pulled to rotate forwards, the driving mechanism rotates forwards to drive the triggering mechanism to operate, the triggering mechanism operates to drive the outer gear rings on the left side and the right side to rotate backwards, the outer gear rings on the left side and the right side rotate backwards to drive the sleeve to rotate backwards, the sleeve rotates backwards to drive the contact rod to rotate backwards, the contact rod rotates backwards to drive the gate valves on the left side and the right side to rotate backwards to open, and petroleum is discharged.
Description
Technical Field
The invention belongs to the technical field of oil and gas development well mouth devices, and particularly relates to an oil field well mouth device capable of synchronously opening a gate valve.
Background
In the oil development, a large amount of oil can appear, for the convenience to the collection processing of oil, need install well head device on the position of exploitation oil, control other materials such as oil, natural gas, at present, when people discharge oil, need operate respectively and open the gate valve and make the oil discharge, so the operation is more troublesome, and can not open the gate valve simultaneously, leads to work efficiency low.
Therefore, it is necessary to design and develop an oilfield wellhead device capable of opening the gate valve simultaneously, and having convenient operation and high working efficiency.
Disclosure of Invention
In order to overcome the defects that when people discharge petroleum, people need to respectively operate and open the gate valve to discharge the petroleum, the operation is troublesome, and the gate valve cannot be opened at the same time, so that the working efficiency is low, the invention aims to provide the oilfield wellhead device capable of synchronously opening the gate valve, convenient to operate and high in working efficiency.
The technical scheme of the invention is as follows: the utility model provides an open oil field wellhead assembly of gate valve in step, including the wellhead assembly, the gate valve, still including the casing, the sleeve pipe, the contact lever, first spring, outer ring gear, actuating mechanism and trigger mechanism, the casing is installed on wellhead assembly upper portion, the sleeve pipe is equipped with four, four sleeve pipes slip the cover respectively four gate valve outside circumference on wellhead assembly upper portion, the outer front side circumference interval rigid coupling of sleeve pipe has four contact levers, the first spring has been around having been around between the outer front side circumference of sleeve pipe outside leading flank and gate valve, the outer rear side circumference of sleeve pipe is fixed the cover and is equipped with outer ring gear, install trigger mechanism between sleeve pipe and casing and the wellhead assembly, actuating mechanism installs in casing front side middle part, actuating mechanism is connected with trigger mechanism.
Preferably, the driving mechanism comprises a driving wheel, a hollow hexagonal rod, a driving gear and a second spring, the hollow hexagonal rod is rotatably connected to the middle of the front side of the shell in a penetrating mode, the hollow hexagonal rod is connected with the triggering mechanism, the driving wheel is fixedly sleeved on the periphery of the outer front side of the hollow hexagonal rod, the second spring is connected to the inner front side face of the driving wheel, the tail end of the second spring is rotatably connected with the outer front side face of the shell, the second spring is wound on the hollow hexagonal rod, the driving gear is fixedly sleeved on the periphery of the outer rear side of the hollow hexagonal rod, and the driving gear is in contact with the triggering mechanism.
Preferably, the triggering mechanism comprises a T-shaped rotating rod, clamping plates, a triggering frame, a swinging plate, a rotating ring, a guide rod, guide gears, rotating gears, a hexagonal rod guide and an annular rotating plate, wherein the middle part of the upper part of the outer front side of the wellhead device is fixedly connected with four clamping plates at intervals, the T-shaped rotating rod is rotatably connected to the middle part of the front side of the hollow hexagonal rod in a penetrating manner, the triggering frame is fixedly connected to the rear end of the T-shaped rotating rod and is contacted with the clamping plates, the hexagonal rod guide is symmetrically and fixedly connected to the front side of the triggering frame, the annular rotating plate is rotatably connected to the middle part of the inner front side of the shell, the rear side of the annular rotating plate is circumferentially and symmetrically rotatably connected with the rotating gears, the rotating gears on the two sides are respectively meshed with the driving gears, the four guide gears are circumferentially and rotatably connected to the front side of the shell in a penetrating manner at intervals, the adjacent guide gears are meshed with the rotating gears, the adjacent guide gears are meshed with the outer gear ring, the outer rear side of the sleeve is circumferentially and rotatably sleeved with the rotating ring, the guide rod is circumferentially and symmetrically and fixedly connected to the outer side of the rotating ring, four oscillating plates are connected to the inner front side of the shell at intervals in the circumferential direction through rods in a rotating mode, the outer ends of the oscillating plates penetrate through the shell and are sleeved on adjacent guide rods, and the inner ends of the four oscillating plates are in contact with the trigger frame.
Preferably, the device also comprises a clamping mechanism, the clamping mechanism comprises a u-shaped plate, a clamping rod and a third spring, the clamping rod is in sliding cross connection with the lower portion of the u-shaped plate, the third spring is in winding connection between the circumferential direction of the front side of the clamping rod and the lower portion of the front side of the outer portion of the shell, the clamping grooves are symmetrically formed in the middle of the lower portion of the front side of the outer portion of the shell, the clamping grooves are in up-down symmetry, the rear end of the clamping rod is located in the clamping grooves of the upper side, the annular groove is formed in the circumferential direction of the middle of the outer portion of the driving wheel, the first sliding block is symmetrically formed in the middle of the front side of the outer portion of the shell in a sliding mode, the first sliding block is in bilateral symmetry, the elastic piece is connected between one side of the first sliding block and the inner portion of the shell, the front side of the first sliding block is fixedly connected with the clamping block, the inner ends of the clamping blocks on the two sides are located in the annular groove, the outer side of the clamping block is fixedly connected with the idler wheels, and the idler wheels on the two sides are respectively sleeved on the u-shaped plates on the two sides.
Preferably, the swinging mechanism further comprises a swinging mechanism, the swinging mechanism comprises a u-shaped rod, a u-shaped fixed plate, an L-shaped magnet, an n-shaped plate, a wave groove plate, a second sliding block, a rolling shaft and a limiting rod, four u-shaped rods are arranged on the outer front side of the shell in a circumferential sliding mode at intervals, the inner side of each u-shaped rod is fixedly connected with the n-shaped plate, the middle of the front side of each n-shaped plate is connected with the second sliding block in a sliding mode, the rolling shaft is fixedly connected to the middle of the inner side of each second sliding block, the rear side of each second sliding block is fixedly connected with the limiting rod, the four limiting rods are respectively located in holes of the four guide gears, four wave groove plates are fixedly connected to the outer front side of the shell in a circumferential interval mode, the inner ends of the four rolling shafts are respectively located in grooves of the four wave groove plates, the u-shaped fixed plate is fixedly connected between the two ends of the outer side of the swinging plate, the outer side of the u-shaped fixed plate is symmetrically connected with the L-shaped magnet, and the adjacent L-shaped magnets are in contact fit with the u-shaped rods.
Preferably, still including lubricated mechanism, lubricated mechanism is including the mounting panel, the stopper, the baffle, the closing plate, spiral plate and play oil pipe, the stopper slides and cross-under in six hollow water chestnut pole top front sides, the closing plate rigid coupling rear side circumference in six hollow water chestnut poles, T type bull stick runs through the closing plate middle part, the spiral plate rigid coupling is in T type bull stick rear side circumference, the spiral plate is located the closing plate front side, the mounting panel rigid coupling is in T type bull stick rear side circumference, the mounting panel is located the spiral plate front side, the through-hole is opened in mounting panel eccentric position, the baffle rigid coupling is in T type bull stick rear side circumference, baffle and through-hole contact cooperation, go out oil pipe rigid coupling in six hollow water chestnut pole left side rear portions and intercommunication, it is close to in drive gear to go out the oil pipe tail end.
Preferably, the device also comprises a u-shaped seat and a guide roller, the inner side of the front side surface of the swinging plate is fixedly connected with the u-shaped seat, the guide roller is rotatably connected between two sides of the u-shaped seat, and the adjacent guide rollers are in contact fit with the trigger frame.
Preferably, the device also comprises a mounting seat, a connecting rod and a rubber ball, wherein the mounting seat is fixedly connected to the eccentric position of the front side surface of the driving wheel, the connecting rod is fixedly connected to the middle part of the front side surface of the mounting seat, and the rubber ball is fixedly connected to the front end of the connecting rod.
The invention has the following advantages:
1. pulling actuating mechanism corotation, actuating mechanism corotation drives the trigger mechanism function, the trigger mechanism function drives the outer ring gear reversal of the left and right sides, the outer ring gear reversal of the left and right sides drives the sleeve pipe reversal, the sleeve pipe reversal drives the contact lever reversal, the contact lever reversal drives the left and right sides gate valve reversal and opens, oil discharges thereupon, and on the same way, when needing to make upper and lower both sides gate valve open, make trigger mechanism drive upper and lower both sides sleeve pipe and move forward, just also make contact lever and upper and lower both sides gate valve contact, so, can open two gate valves simultaneously, high work efficiency, it is more convenient.
2. Under the effect of chucking mechanism, can restrict the drive wheel, prevent the drive wheel back-and-forth movement, so, can avoid the drive wheel to move forward and influence the meshing of outer ring gear and leading gear.
3. Under the effect of swing mechanism, the in-process that outer ring gear moved forward and the meshing of leading gear, the gag lever post can drive leading gear round trip to rotate and adapt to outer ring gear, so, can avoid outer ring gear can not influence opening and closing of gate valve with the meshing of leading gear.
Drawings
Fig. 1 is a schematic perspective view of a first embodiment of the present invention.
Fig. 2 is a schematic perspective view of a second embodiment of the present invention.
FIG. 3 is a first partial cross-sectional structural schematic of the present invention.
FIG. 4 is a second partial cross-sectional structural schematic of the present invention.
Fig. 5 is an enlarged schematic view of part a of the present invention.
Fig. 6 is a third partial sectional structural view of the present invention.
Fig. 7 is a fourth partial sectional structural view of the present invention.
Fig. 8 is an enlarged view of part B of the present invention.
FIG. 9 is a schematic view of a fifth partial sectional structure of the present invention.
FIG. 10 is a sixth partial sectional structural view of the present invention.
Fig. 11 is a seventh partial sectional structural view of the present invention.
Fig. 12 is an enlarged schematic view of part C of the present invention.
Fig. 13 is a partial sectional structural view of an eighth embodiment of the present invention.
Fig. 14 is a partial perspective view of the present invention.
FIG. 15 is a ninth partial sectional structural view of the present invention.
Fig. 16 is a schematic view of a tenth partial sectional structure of the present invention.
Number designation in the figures: 1-wellhead device, 2-gate valve, 3-shell, 4-sleeve, 5-contact rod, 6-first spring, 7-external gear ring, 8-driving mechanism, 81-driving wheel, 82-hollow hexagonal rod, 83-driving gear, 84-second spring, 9-triggering mechanism, 91-T-shaped rotating rod, 92-clamping plate, 93-triggering frame, 94-swinging plate, 95-rotating ring, 96-guide rod, 97-guide gear, 98-rotating gear, 99-hexagonal guide rod, 910-annular rotating plate, 10-clamping mechanism, 101-u-shaped plate, 102-clamping groove, 103-clamping rod, 104-third spring, 105-first slide block, 106-elastic element, 107-clamping block, 108-roller, 109-annular groove, 11-swing mechanism, 111-u-shaped rod, 112-u-shaped fixing plate, 113-L-shaped magnet, 114-n-shaped plate, 115-wave groove plate, 116-second sliding block, 117-roller, 118-limiting rod, 12-lubricating mechanism, 121-mounting plate, 122-plug, 123-through hole, 124-baffle, 125-sealing plate, 126-spiral plate, 127-oil outlet pipe, 13-u-shaped seat, 14-guide roller, 15-mounting seat, 16-connecting rod and 17-rubber ball.
Detailed Description
The following further describes the technical solution with reference to specific embodiments, and it should be noted that: the words upper, lower, left, right, and the like used herein to indicate orientation are merely for the location of the illustrated structure in the corresponding figures. The serial numbers of the parts are themselves numbered herein, for example: first, second, etc. are used solely to distinguish one from another as to objects described herein, and do not have any sequential or technical meaning. The application states that: the connection and coupling, unless otherwise indicated, include both direct and indirect connections (couplings).
Example (b): an oil field wellhead device for synchronously opening a gate valve.
Referring to fig. 1, 2, 3, 4, 6, 7, 9 and 13, the wellhead device comprises a wellhead device 1, a gate valve 2, a housing 3, a casing 4, contact rods 5, a first spring 6, an outer gear ring 7, a driving mechanism 8 and a triggering mechanism 9, wherein the housing 3 is installed on the upper portion of the wellhead device 1 through bolts in the circumferential direction, the casing 4 is sleeved on the outer sides of four gate valves 2 on the upper portion of the wellhead device 1 in the circumferential direction in a sliding manner, four contact rods 5 are fixedly connected to the outer front side of the casing 4 at uniform intervals in the circumferential direction, the contact rods 5 are matched with the gate valves 2, the first spring 6 is connected between the outer front side of the casing 4 and the outer front side of the gate valves 2 in the circumferential direction, one end of the first spring 6 is fixedly connected with the outer front side of the casing 2, the other end of the first spring 6 is fixedly connected with the outer front side of the casing 4, the outer rear side of the casing 4 is fixedly sleeved with the outer gear ring 7 in the circumferential direction, the triggering mechanism 9 is installed between the casing 4 and the wellhead device 1, the trigger mechanism 9 is matched with the outer gear ring 7, the trigger mechanism 9 is used for driving the gate valve 2 to rotate, close and open, the driving mechanism 8 is installed in the middle of the front side of the shell 3, the driving mechanism 8 is connected and matched with the trigger mechanism 9, and the driving mechanism 8 is used for driving the trigger mechanism 9 to operate.
The driving mechanism 8 comprises a driving wheel 81, a hollow hexagonal rod 82, a driving gear 83 and a second spring 84, the hollow hexagonal rod 82 is rotatably connected to the middle of the front side of the shell 3 in a penetrating manner, the hollow hexagonal rod 82 is connected and matched with the triggering mechanism 9, the driving wheel 81 is fixedly connected to the outer front side of the hollow hexagonal rod 82 in the circumferential direction, the inner front side of the driving wheel 81 is connected with the second spring 84, the second spring 84 is wound on the hollow hexagonal rod 82, the tail end of the second spring 84 is rotatably connected with the outer front side of the shell 3 through a rotating ring, the driving gear 83 is fixedly sleeved on the outer rear side of the hollow hexagonal rod 82 in the circumferential direction, and the driving gear 83 is in contact with the triggering mechanism 9.
The triggering mechanism 9 comprises a T-shaped rotating rod 91, a clamping plate 92, a triggering frame 93, a swinging plate 94, a rotating ring 95, a guide rod 96, a guide gear 97, a rotating gear 98, a hexagonal guide rod 99 and an annular rotating plate 910, wherein the four clamping plates 92 are fixedly connected at the middle of the upper part of the outer front side surface of the wellhead device 1 at even intervals, the T-shaped rotating rod 91 is rotatably connected at the middle part of the front side of the hollow hexagonal rod 82 in a penetrating way, the triggering frame 93 is fixedly connected at the rear end of the T-shaped rotating rod 91, the triggering frame 93 is contacted with the clamping plates 92, the annular rotating plate 910 is rotatably connected at the circumferential side surface of the inner front side surface of the shell 3, the rotating gear 98 is rotatably connected at the circumferential side surface of the annular rotating plate 910 in a circumferential symmetrical way, the rotating gear 98 is meshed with a driving gear 83, the guide gear 97 is rotatably connected at the circumferential side of the front side of the shell 3 in a penetrating way at even intervals, the guide gear 97 is meshed with the rotating gear 98, the outer gear 7 is further meshed with the guide gear 97, the outer rear side of the sleeve 4 is rotatably sleeved with the rotating ring 95, guide rods 96 are fixedly connected to the outer side of the rotating ring 95 in a circumferentially symmetrical mode, a swinging plate 94 is rotatably connected to the inner front side of the shell 3 at uniform intervals in a circumferentially symmetrical mode, the swinging plate 94 is in contact with the trigger frame 93, the outer end of the swinging plate 94 penetrates through the shell 3 and is sleeved on the guide rods 96, the front side surface of the trigger frame 93 is rotatably connected with a hexagonal rod guide 99 in a left-right symmetrical mode, the front end of the hexagonal rod guide 99 is located on the inner side of the middle of the rotating gear 98, and the hexagonal rod guide 99 is used for driving the rotating gear 98 to rotate and reverse.
Initially, the first springs 6 on the left and right sides are in a compressed state, firstly, the wellhead device 1 is installed, oil enters the wellhead device 1, then the oil outlet pipes 127 on the wellhead device 1 are communicated with an external pipeline, when the oil outlet pipes 127 on the left and right sides of the upper part of the wellhead device 1 need to be opened, the driving mechanism 8 can be pulled to rotate forward, the driving mechanism 8 rotates forward to drive the triggering mechanism 9 to operate, the triggering mechanism 9 operates to drive the outer gear rings 7 on the left and right sides to rotate backward, the outer gear rings 7 on the left and right sides rotate backward to drive the sleeves 4 on the left and right sides to rotate backward, the sleeves 4 on the left and right sides rotate backward to drive the contact rods 5 on the left and right sides to rotate backward, the contact rods 5 on the left and right sides drive the gate valves 2 on the left and right sides to rotate backward to open the oil outlet pipes 127 on the left and right sides of the upper part of the wellhead device 1, and the oil in the wellhead device 1 is discharged through the oil outlet pipes 127 on the left and right sides of the upper part, at the same time, the driving mechanism 8 stops being pulled forward, and the left and right gate valves 2 stop rotating backward. When a proper amount of petroleum is discharged, the driving mechanism 8 can be pulled to rotate reversely, the gate valves 2 on the left side and the right side rotate forward and are closed, and the petroleum in the wellhead device 1 stops being discharged. Similarly, when the oil outlet pipe 127 on the upper and lower sides of the wellhead device 1 needs to be opened, the driving mechanism 8 can be pulled to move forward, the driving mechanism 8 moves forward to drive the triggering mechanism 9 to move forward, when the triggering mechanism 9 moves forward to a proper position, the triggering mechanism 9 does not limit the sleeves 4 on the left and right sides, due to the action of the first springs 6 on the left and right sides, the sleeves 4 on the left and right sides move backward to reset and drive the outer gear ring 7 to move backward to a proper position, the outer gear ring 7 moves backward to be separated from the contact with the triggering mechanism 9, at this time, the driving mechanism 8 stops being pulled to move forward, the triggering mechanism 9 is pulled to rotate ninety degrees, then the driving mechanism 8 is released to move backward to reset, the driving mechanism 8 moves backward to drive the triggering mechanism 9 to move backward to reset, the triggering mechanism 9 resets to drive the sleeves 4 on the upper and lower sides to move forward, the first springs 6 on the upper and lower sides are compressed, the upper and lower side sleeves 4 move forward to drive the upper and lower side contact rods 5 to move forward, the upper and lower side contact rods 5 move forward to be matched with the upper and lower side gate valves 2, and the sleeves 4 further drive the upper and lower side outer gear rings 7 to move forward to be matched with the trigger mechanism 9, so that the driving mechanism 8 can be pulled to rotate forward again, the upper and lower side contact rods 5 rotate reversely to drive the upper and lower side gate valves 2 to open reversely, the upper and lower side gate valves 2 rotate reversely to open the oil outlet pipes 127 on the upper and lower sides of the wellhead device 1, oil in the wellhead device 1 is discharged through the upper and lower side oil outlet pipes 127 on the upper and lower sides, the driving mechanism 8 is stopped to be pulled, when a proper amount of oil is discharged, the driving mechanism 8 can be pulled to rotate reversely, so that the upper and lower side contact rods 5 drive the upper and lower side contact rods 2 to, time and labor are saved.
When oil needs to be discharged from the oil outlet pipes 127 on the left side and the right side of the upper part of the wellhead device 1, the driving wheel 81 can be pulled to rotate forwards, the driving wheel 81 rotates forwards to drive the hollow hexagonal rod 82 to rotate forwards, the hollow hexagonal rod 82 rotates forwards to drive the driving wheel 83 to rotate forwards, the driving wheel 83 rotates forwards to drive the trigger mechanism 9 to operate, the trigger mechanism 9 operates to drive the outer gear rings 7 on the left side and the right side of the upper part to rotate backwards, so that the gate valves 2 on the left side and the right side of the upper part of the wellhead device 1 are opened in a reverse rotation way, the oil is discharged through the oil outlet pipes 127 on the left side and the right side of the upper part of the wellhead device 1, meanwhile, the driving wheel 81 stops pulling the driving wheel 81 to rotate forwards, the driving wheel 83 stops driving the trigger mechanism 9 to operate, when the proper amount of oil is discharged, the oil is not needed to be discharged, the driving wheel 81 can be rotated backwards, the driving wheel 81 rotates backwards to drive the hollow hexagonal rod 82 to rotate backwards to drive the outer gear rings 7 to reset through the trigger mechanism 9, the contact rod 5 also drives the gate valves 2 on the left and right sides of the upper part of the wellhead device 1 to rotate forward and close, the gate valves 2 on the left and right sides of the upper part of the wellhead device 1 are closed, the oil outlet pipes 127 on the left and right sides of the upper part are closed, the oil stops being discharged, similarly, when the oil in the gate valves 2 on the upper and lower sides of the upper part of the wellhead device 1 needs to be discharged, the driving wheel 81 can be pulled to move forward, the second spring 84 is stretched, the driving wheel 81 moves forward to drive the hollow hexagonal rod 82 to move forward, the hollow hexagonal rod 82 moves forward to drive the trigger mechanism 9 to move forward, the trigger mechanism 9 does not limit the sleeves 4 on the left and right sides, due to the action of the first spring 6, the sleeves 4 on the left and right sides move backward to drive the contact rods 5 on the left and right sides to move backward to be separated from the contact with, then the driving wheel 81 is loosened, the driving wheel 81 moves backwards to drive the hollow hexagonal rod 82 to move backwards and reset due to the action of the second spring 84, the hollow hexagonal rod 82 moves backwards and resets to drive the trigger mechanism 9 to move backwards and reset, the trigger mechanism 9 moves backwards and resets to drive the sleeves 4 on the upper and lower sides to move forwards, the sleeves 4 on the upper and lower sides move forwards to drive the contact rods 5 on the upper and lower sides to move forwards to a proper position, then the driving wheel 81 can be pulled to rotate forwards again, the contact rods 5 on the upper and lower sides can rotate backwards to drive the gate valves 2 on the upper and lower sides of the wellhead device 1 to rotate backwards and open, petroleum is discharged through the oil outlet pipes 127 on the upper and lower sides of the wellhead device 1, the driving wheel 81 can be pulled to rotate forwards to drive the hollow hexagonal rod 82 to rotate backwards, the contact rods 5 on the upper and lower sides can rotate forwards to drive the gate valves 2 on the upper and lower sides of the wellhead device 1 to close, the oil stops draining.
When the driving wheel 81 is pulled to rotate forwards, the driving gear 83 rotates forwards to drive the rotating gear 98 to rotate backwards, the rotating gear 98 rotates backwards to drive the guide gear 97 to rotate forwards, the guide gear 97 rotates forwards to drive the outer gear rings 7 on the left and right sides to rotate backwards, the outer gear rings 7 on the left and right sides rotate backwards to drive the sleeves 4 on the left and right sides to rotate backwards, the sleeves 4 on the left and right sides rotate backwards to drive the contact rods 5 on the left and right sides to rotate backwards, the contact rods 5 on the left and right sides rotate backwards to drive the gate valves 2 on the left and right sides of the upper part of the wellhead device 1 to rotate backwards, at the moment, the gate valves 2 on the left and right sides of the upper part of the wellhead device 1 rotate backwards to open in a reverse way, oil is discharged through the oil outlet pipes 127 on the left and right sides of the upper part of the wellhead device 1, the driving wheel 81 is stopped to be pulled, the rotating gear 83 rotates backwards to drive the rotating gear 98 to rotate forwards to drive the guide gear 97 in a reverse way, the guide gear 97 rotates reversely to drive the left and right outer gear rings 7 to rotate forwardly, so that the contact rod 5 drives the gate valves 2 on the left and right sides of the upper portion to rotate forwardly and close, and the oil stops discharging, and similarly, when the gate valves 2 on the upper and lower sides of the upper portion of the wellhead device 1 need to be opened, the driving wheel 81 can be pulled to move forwardly, the hollow hexagonal rod 82 drives the T-shaped rotating rod 91 to move forwardly, the T-shaped rotating rod 91 moves forwardly to drive the trigger frame 93 to move forwardly, the trigger frame 93 moves forwardly to be separated from the contact with the clamping plate 92, and the trigger frame 93 moves forwardly to not limit the swinging plate 94, due to the action of the left and right first springs 6, the left and right sleeves 4 move backwardly to drive the left and right contact rods 5 and the outer gear rings 7 to move backwardly, the outer gear rings 7 move backwardly to be separated from the engagement with the guide gear 97, and the left and right sleeves 4 move backwardly to drive the left and right rotating rings 95 to move backwardly, the left and right rotating rings 95 move backwards to drive the left and right guide rods 96 to move backwards, the left and right guide rods 96 move backwards to drive the outer ends of the left and right swinging plates 94 to swing backwards, the outer ends of the left and right swinging plates 94 swing backwards to make the inner ends swing forwards, and simultaneously the driving wheel 81 stops being pulled to move forwards, the T-shaped rotating rod 91 is twisted to rotate ninety degrees, the T-shaped rotating rod 91 rotates ninety degrees to drive the hexagonal rod 99 to rotate, the hexagonal rod 99 rotates to drive the rotating gear 98 to rotate, the rotating gear 98 rotates ninety degrees to be meshed with the upper and lower guide gears 97, the T-shaped rotating rod 91 stops being twisted, the trigger frame 93 stops rotating, the guide gear 97 stops rotating, then the driving wheel 81 is loosened, the driving wheel 81 moves backwards to drive the hollow hexagonal rod 82 to move backwards to reset, the T-shaped rotating rod 91 also drives the trigger frame 93 to move backwards to reset, the trigger frame 93 moves backwards to reset and drives the inner ends of the upper and lower oscillating plates 94 to oscillate backwards, the inner ends of the upper and lower oscillating plates 94 oscillate backwards to enable the outer ends to oscillate forwards, the outer ends of the upper and lower oscillating plates 94 oscillate forwards through the upper and lower guide rods 96 to drive the upper and lower rotating rings 95 to move forwards, the upper and lower rotating rings 95 move forwards to drive the upper and lower sleeves 4 to move forwards, the upper and lower sleeves 4 move forwards to drive the upper and lower outer gear rings 7 to move forwards, the upper and lower outer gear rings 7 move forwards to be engaged with the upper and lower guide gears 97, and the trigger frame 93 moves backwards to be in contact with the clamping plate 92 to be limited, the driving wheel 81 can be pulled to rotate forwards, the contact rods 5 on the upper side and the lower side rotate backwards to drive the gate valves 2 on the upper side and the lower side of the upper part of the wellhead device 1 to rotate backwards and open, the petroleum is discharged, when the petroleum is not required to be discharged, the driving wheel 81 can be pulled to rotate reversely, and the contact rods 5 on the upper side and the lower side rotate positively to drive the gate valves 2 on the upper side and the lower side of the upper part of the wellhead device 1 to rotate positively to close. Thus, the two gate valves 2 can be opened simultaneously to discharge the oil.
Referring to fig. 1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12 and 14, the clamping device 10 is further provided, the clamping device 10 is installed between the outer front side of the housing 3 and the driving wheel 81, the clamping device 10 includes a u-shaped plate 101, a clamping rod 103, a third spring 104, a first slider 105, an elastic member 106, a clamping block 107 and a roller 108, the u-shaped plate 101 is slidably placed on the lower portion of the outer front side of the housing 3, two ends of the top of the u-shaped plate 101 are wedge-shaped, the clamping rod 103 is slidably connected in the middle of the lower portion of the u-shaped plate 101, the third spring 104 is wound between the front side of the clamping rod 103 and the lower portion of the front side of the u-shaped plate 101, one end of the third spring 104 is fixedly connected to the lower portion of the front side of the u-shaped plate 101, the other end of the third spring 104 is fixedly connected to the front side of the clamping rod 103 in the circumferential direction, the middle of the outer front side of the housing 3 is symmetrically provided with the clamping groove 102, the rear end of the clamping rod 103 is located in the clamping groove 102, an annular groove 109 is circumferentially formed in the middle of the outer side of the driving wheel 81, a first sliding block 105 is placed in a sliding manner in which the middle of the outer front side of the shell 3 is bilaterally symmetrically embedded, an elastic part 106 is connected between the outer side surface of the first sliding block 105 and the inside of the shell 3, one end of the elastic part 106 is fixedly connected with the inside of the shell 3, the other end of the elastic part 106 is fixedly connected with the outer side surface of the first sliding block 105, a clamping block 107 is fixedly connected to the front side surface of the first sliding block 105, the inner end of the clamping block 107 is located in the annular groove 109, the clamping block 107 is used for limiting the driving wheel 81 to move back and forth, a roller 108 is installed on the outer side surface of the clamping block 107 in a bolt connection mode, and the roller 108 is sleeved on the u-shaped plate 101.
The swinging mechanism 11 is further included, the swinging mechanism 11 is arranged on the shell 3, the swinging mechanism 11 comprises a u-shaped rod 111, a u-shaped fixing plate 112, an L-shaped magnet 113, an n-shaped plate 114, a wavy groove plate 115, a second sliding block 116, a rolling shaft 117 and a limiting rod 118, the u-shaped rod 111 is arranged on the front side of the outer top and the front side of the bottom of the shell 3 in a sliding manner, the u-shaped rod 111 is also arranged on the front portion of the outer left side and the front portion of the outer right side of the shell 3 in a sliding manner, the n-shaped plate 114 is fixedly connected to the inner side of the front side of the u-shaped rod 111, the second sliding block 116 is fixedly connected to the middle of the n-shaped plate 114 in a sliding manner, the rolling shaft 117 is fixedly connected to the inner side of the second sliding block 116, four wavy groove plates 115 are fixedly connected to the outer front side of the shell 3 at uniform intervals in the circumferential direction, the inner end of the rolling, the inner side surface of the L-shaped magnet 113 contacts with the outer side of the u-shaped rod 111, the rear side surface of the second slider 116 is fixedly connected with a limiting rod 118, the limiting rod 118 is located in the hole of the guide gear 97, and the limiting rod 118 is used for driving the guide gear 97 to slightly rotate back and forth.
The lubricating device further comprises a lubricating mechanism 12, the lubricating mechanism 12 is installed on the hollow hexagonal rod 82, the lubricating mechanism 12 comprises an installation plate 121, a plug 122, a baffle 124, a sealing plate 125, a spiral plate 126 and an oil outlet pipe 127, the plug 122 is movably connected to the front side of the top of the hollow hexagonal rod 82 in a penetrating mode, the sealing plate 125 is fixedly connected to the inner rear side of the hollow hexagonal rod 82 in the circumferential direction, a T-shaped rotating rod 91 penetrates through the middle of the sealing plate 125, the spiral plate 126 is fixedly connected to the rear side of the T-shaped rotating rod 91 in the circumferential direction, the spiral plate 126 is located on the front side of the installation plate 121, the installation plate 121 is fixedly connected to the inner rear side of the hollow hexagonal rod 82 in the circumferential direction, the installation plate 121 is located on the front side of the spiral plate 126, a through hole 123 is formed in the eccentric position of the installation plate 121 and is used for enabling lubricating oil to penetrate through to be in contact with the spiral plate 126, the oil outlet pipe 127 is fixedly connected to the rear portion of the left side of the hollow hexagonal rod 82 and communicated with the oil outlet pipe 127, the rear side of the driving gear 83, the rear side of the T-shaped rotating rod 91 is circumferentially and fixedly connected with a baffle 124, and the baffle 124 is in contact fit with the through hole 123.
When the driving wheel 81 needs to be pulled to move forwards, the clamping rod 103 can be pulled to move forwards, the third spring 104 is stretched, when the clamping rod 103 moves forwards to be separated from the upper clamping groove 102, the clamping rod 103 stops being pulled to move forwards, the clamping rod 103 moves downwards to drive the u-shaped plate 101 to move downwards, the u-shaped plate 101 moves downwards to drive the roller 108 to move outwards, the roller 108 moves outwards to drive the clamping block 107 to move outwards, the clamping block 107 moves outwards to be separated from the annular groove 109, the clamping block 107 moves outwards to drive the first sliding block 105 to move outwards, the elastic piece 106 is compressed, when the clamping rod 103 moves downwards to correspond to the lower clamping groove 102, the clamping rod 103 stops being pulled to move downwards, the u-shaped plate 101 stops driving the clamping block 107 to move outwards through the roller 108 to release the clamping rod 103, the clamping rod 103 moves backwards to be inserted into the lower clamping groove 102 due to the action of the third spring 104, and the clamping rod 103 is matched with the lower clamping groove 102 to fix the u-shaped plate 101, i.e. the driving wheel 81 is pulled forward. When the driving wheel 81 moves backwards to reset, the clamping rod 103 is pulled to move forwards to be separated from contact with the clamping groove 102 below, the clamping rod 103 is pulled to drive the u-shaped plate 101 to move upwards to reset, the clamping rod 103 is loosened to move backwards to be inserted into the clamping groove 102 above, the u-shaped plate 101 moves upwards to reset without limiting the roller 108, due to the action of the elastic piece 106, the first sliding block 105 drives the clamping block 107 to move inwards to reset to be inserted into the annular groove 109, and the clamping block 107 is matched with the annular groove 109 to limit the driving wheel 81 to move forwards. In this way, it is possible to avoid the driving wheel 81 moving forward from affecting the engagement of the outer ring gear 7 with the guide gear 97.
When the T-shaped turning lever 91 is turned ninety degrees, the trigger frame 93 is turned ninety degrees to be out of contact with the left and right side swinging plates 94, the left and right side sleeves 4 move backward to drive the left and right side swinging rings 95 to move backward due to the action of the left and right side first springs 6, the left and right side swinging rings 95 move backward to drive the outer ends of the left and right side swinging plates 94 to swing backward through the guide rods 96, the outer ends of the left and right side swinging plates 94 swing backward to drive the u-shaped fixing plate 112 to swing backward, the u-shaped fixing plate 112 swings backward to drive the L-shaped magnet 113 to swing backward, the L-shaped magnet 113 swings backward to drive the u-shaped lever 111 to move backward, the u-shaped lever 111 moves backward to drive the n-shaped plate 114 to move backward, the n-shaped plate 114 moves backward to drive the second slider 116 to move backward, the second slider 116 moves backward to drive the stopper 118 to move backward to be inserted into the hole of the guide gear 97, and the second slider 116 moves backward to drive the roller 117, the roller 117 moves backwards and continuously moves up and down through the wave groove plate 115, the roller 117 moves up and down through the second sliding block 116 to drive the limiting rod 118 to move up and down, and the limiting rod 118 moves down to drive the guide gear 97 to slightly rotate back and forth. Similarly, when the trigger frame 93 rotates ninety degrees, the trigger frame 93 moves backwards to drive the inner ends of the upper and lower swing plates 94 to swing backwards, the outer ends of the swing plates 94 also swing forwards to drive the L-shaped magnet 113 to swing forwards through the u-shaped fixing plate 112, the roller 117 also moves forwards to move left and right continuously through the wave groove plate 115, the roller 117 drives the limiting rod 118 to move left and right continuously through the second slider 116, the limiting rod 118 moves left and right continuously to drive the upper and lower guide gears 97 to rotate back and forth, and further when the outer gear ring 7 moves forwards to contact the guide gears 97, the guide gears 97 rotate back and forth to be better meshed with the outer gear ring 7. Thus, the external gear ring 7 can be prevented from being incapable of meshing with the guide gear 97 to affect the opening and closing of the gate valve 2.
The plug 122 is taken down from the hollow hexagonal rod 82, a proper amount of lubricating oil is poured into the hollow hexagonal rod 82, the lubricating oil flows into the through hole 123 and is blocked by the baffle plate 124, when the hollow hexagonal rod 82 is filled with a proper amount of lubricating oil, the plug 122 is plugged back onto the hollow hexagonal rod 82, when an operator twists the T-shaped rotating rod 91 to rotate, the T-shaped rotating rod 91 rotates and drives the baffle plate 124 and the spiral plate 126 to rotate, the baffle plate 124 rotates and does not block the through hole 123, the lubricating oil flows out through the through hole 123 and contacts with the spiral plate 126, the spiral plate 126 rotates and conveys the lubricating oil into the oil outlet pipe 127, the lubricating oil in the oil outlet pipe 127 is sprayed onto the driving gear 83, when the operator stops twisting the T-shaped rotating rod 91 to rotate, the T-shaped rotating rod 91 stops driving the baffle plate 124 and the spiral plate 126 to rotate, and the lubricating oil stops being sprayed out through the oil outlet pipe 127. As the drive gear 83 rotates, the drive gear 83 throws the lubricating oil onto the rotary gear 98. In this way, the driving gear 83 can be made to rotate the rotary gear 98 better.
Referring to fig. 3, 4, 15 and 16, the device further comprises a u-shaped seat 13 and a guide roller 14, the u-shaped seat 13 is installed on the inner side of the front side of the swing plate 94 in a welding connection mode, the guide roller 14 is rotatably connected between two sides of the u-shaped seat 13 in a penetrating mode, and the guide roller 14 is in contact with the trigger frame 93.
The driving wheel 81 is characterized by further comprising a mounting seat 15, a connecting rod 16 and a rubber ball 17, the mounting seat 15 is mounted at the eccentric position of the front side face of the driving wheel 81 in a welding connection mode, the connecting rod 16 is fixedly connected to the middle of the front side face of the mounting seat 15, and the rubber ball 17 is fixedly connected to the front end of the connecting rod 16.
When the triggering frame 93 moves backwards to drive the inner end of the swinging plate 94 to swing backwards, the triggering frame 93 is contacted with the guide roller 14, the triggering frame 93 drives the guide roller 14 to rotate, and the guide roller 14 plays a guiding role. Thus, the trigger frame 93 can drive the inner end of the swing plate 94 to move backward more smoothly.
When the driving wheel 81 needs to be pulled to rotate, the rubber ball 17 can be held to drive the connecting rod 16 to rotate, the connecting rod 16 rotates to drive the mounting seat 15 to rotate, and the mounting seat 15 rotates to drive the driving wheel 81 to rotate. Thus, the operator can pull the driving wheel 81 to rotate more conveniently.
The present application is described in detail above, and the principles and embodiments of the present application are described herein by using specific examples, which are only used to help understand the method and the core idea of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (8)
1. An oil field wellhead device capable of synchronously opening a gate valve comprises a wellhead device (1) and a gate valve, and is characterized by further comprising a shell (3), four sleeves (4), four contact rods (5), first springs (6), outer gear rings (7), a driving mechanism (8) and a triggering mechanism (9), wherein the shell (3) is installed on the upper portion of the wellhead device (1), the four sleeves (4) are respectively sleeved on the outer circumferential sides of the four gate valves (2) on the upper portion of the wellhead device (1) in a sliding mode, the outer front side of each sleeve (4) is fixedly connected with the four contact rods (5) at intervals in the circumferential direction, the first springs (6) are wound between the outer front side of each sleeve (4) and the outer front side of each gate valve (2), the outer gear rings (7) are fixedly sleeved on the outer rear side of each sleeve (4) in the circumferential direction, and the triggering mechanism (9) is installed between each sleeve (4), the shell (3) and the wellhead device (1), the driving mechanism (8) is arranged in the middle of the front side of the shell (3), and the driving mechanism (8) is connected with the triggering mechanism (9).
2. The oilfield wellhead device for synchronously opening the gate valve according to claim 1, wherein the driving mechanism (8) comprises a driving wheel (81), a hollow hexagonal rod (82), a driving gear (83) and a second spring (84), the hollow hexagonal rod (82) is rotatably connected to the middle of the front side of the housing (3) in a penetrating manner, the hollow hexagonal rod (82) is connected with the triggering mechanism (9), the driving wheel (81) is fixedly sleeved on the periphery of the outer front side of the hollow hexagonal rod (82), the second spring (84) is connected to the inner front side surface of the driving wheel (81), the tail end of the second spring (84) is rotatably connected with the outer front side surface of the housing (3), the second spring (84) is wound on the hollow hexagonal rod (82), the driving gear (83) is fixedly sleeved on the periphery of the outer rear side of the hollow hexagonal rod (82), and the driving gear (83) is in contact with the triggering mechanism (9).
3. The oilfield wellhead device for synchronously opening the gate valve according to claim 2, wherein the trigger mechanism (9) comprises a T-shaped rotating rod (91), a clamping plate (92), a trigger frame (93), a swinging plate (94), a rotating ring (95), a guide rod (96), a guide gear (97), a rotating gear (98), a hexagonal rod guide (99) and an annular rotating plate (910), four clamping plates (92) are fixedly connected to the middle of the upper portion of the outer front side of the wellhead device (1) at intervals, the T-shaped rotating rod (91) is rotatably connected to the middle of the front side of the hollow hexagonal rod (82) in a penetrating manner, the trigger frame (93) is fixedly connected to the rear end of the T-shaped rotating rod (91), the trigger frame (93) is in contact with the clamping plates (92), the hexagonal rod guide (99) is symmetrically and fixedly connected to the front side of the trigger frame (93), the annular rotating plate (910) is rotatably connected to the middle of the inner front side of the casing (3) in a circumferential and symmetrical manner, and the rotating gear (98) is, the rotary gear (98) of both sides all meshes with drive gear (83), casing (3) front side circumference interval rotates and has worn to connect four leading gear (97), adjacent leading gear (97) and rotary gear (98) meshing, adjacent leading gear (97) and outer ring gear (7) meshing, the outer rear side circumference of sleeve pipe (4) is rotated the cover and is equipped with swivel becket (95), swivel becket (95) outside circumference symmetry rigid coupling has guide arm (96), casing (3) inside front side circumference interval is connected with four swing board (94) through the pole rotation, swing board (94) outer end is run through casing (3) and is overlapped on adjacent guide arm (96), four swing board (94) inner all contact with trigger frame (93).
4. The oilfield wellhead device for synchronously opening the gate valve according to claim 3, characterized by further comprising a clamping mechanism (10), wherein the clamping mechanism (10) comprises a u-shaped plate (101), a clamping rod (103), a third spring (104), a first sliding block (105), an elastic member (106), a clamping block (107) and a roller (108), the u-shaped plate (101) is slidably arranged at the lower part of the outer front surface of the housing (3), two ends of the top of the u-shaped plate (101) are wedge-shaped, the clamping rod (103) is slidably penetrated in the middle of the lower part of the u-shaped plate (101), the third spring (104) is wound between the circumferential direction of the front side of the clamping rod (103) and the lower part of the outer front side surface of the housing (3), the clamping grooves (102) are symmetrically arranged in the middle of the lower part of the outer front side surface of the housing (3), the clamping grooves (102) are vertically symmetrical, the rear end of the clamping rod (103) is arranged in the clamping groove (102) at the, first slider (105) symmetry slip is established in the outer leading flank middle part of casing (3), first slider (105) are bilateral symmetry, be connected with elastic component (106) between first slider (105) one side and casing (3) inside, first slider (105) leading flank rigid coupling has fixture block (107), fixture block (107) the inner of both sides all is located ring channel (109), fixture block (107) lateral surface rigid coupling has gyro wheel (108), gyro wheel (108) the cover respectively on the u template (101) of both sides.
5. The oilfield wellhead device for synchronously opening the gate valve according to claim 4, characterized by further comprising a swing mechanism (11), wherein the swing mechanism (11) comprises a u-shaped rod (111), a u-shaped fixing plate (112), an L-shaped magnet (113), an n-shaped plate (114), a wave groove plate (115), a second slider (116), a roller (117) and a limiting rod (118), four u-shaped rods (111) are arranged on the outer front side of the housing (3) in a sliding manner at intervals in the circumferential direction, the n-shaped plate (114) is fixedly connected to the inner side of the u-shaped rod (111), the second slider (116) is slidably connected to the middle of the front side of the n-shaped plate (114) in a penetrating manner, the roller (117) is fixedly connected to the middle of the inner side of the second slider (116), the limiting rod (118) is fixedly connected to the rear side of the second slider (116), the four limiting rods (118) are respectively located in holes of the four guide gears (97), the outer front side of the housing (3, the inner ends of the four rolling shafts (117) are respectively positioned in the grooves of the four wavy groove plates (115), a u-shaped fixing plate (112) is fixedly connected between the two ends of the outer side of the swinging plate (94), L-shaped magnets (113) are symmetrically and fixedly connected to the outer side of the rear side surface of the u-shaped fixing plate (112), and the adjacent L-shaped magnets (113) are in contact fit with the u-shaped rod (111).
6. The oilfield wellhead device for synchronously opening the gate valve according to claim 5, further comprising a lubricating mechanism (12), wherein the lubricating mechanism (12) comprises a mounting plate (121), a plug (122), a baffle plate (124), a sealing plate (125), a spiral plate (126) and an oil outlet pipe (127), the plug (122) is slidably connected to the front side of the top of the hollow hexagonal rod (82), the sealing plate (125) is fixedly connected to the circumferential direction of the inner rear side of the hollow hexagonal rod (82), the T-shaped rotating rod (91) penetrates through the middle part of the sealing plate (125), the spiral plate (126) is fixedly connected to the circumferential direction of the rear side of the T-shaped rotating rod (91), the spiral plate (126) is located at the front side of the sealing plate (125), the mounting plate (121) is fixedly connected to the circumferential direction of the rear side of the T-shaped rotating rod (91), the mounting plate (121) is located at the front side of the spiral plate (126), the through hole (123) is opened at an eccentric position of the mounting plate (121), the baffle plate (124) is fixedly connected to the circumferential direction of the rear side of the T-shaped rotating rod (91), the baffle (124) is in contact fit with the through hole (123), the oil outlet pipe (127) is fixedly connected to and communicated with the rear part of the left side of the hollow hexagonal rod (82), and the tail end of the oil outlet pipe (127) is close to the driving gear (83).
7. The oilfield wellhead device for synchronously opening the gate valve according to claim 6, further comprising a u-shaped seat (13) and a guide roller (14), wherein the u-shaped seat (13) is fixedly connected to the inner side of the front side surface of the swinging plate (94), the guide roller (14) is rotatably connected between two sides of the u-shaped seat (13), and adjacent guide rollers (14) are in contact fit with the trigger frame (93).
8. The oilfield wellhead device for synchronously opening the gate valve according to claim 7, further comprising a mounting seat (15), a connecting rod (16) and a rubber ball (17), wherein the mounting seat (15) is fixedly connected to the eccentric position of the front side surface of the driving wheel (81), the connecting rod (16) is fixedly connected to the middle part of the front side surface of the mounting seat (15), and the rubber ball (17) is fixedly connected to the front end of the connecting rod (16).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110977926.6A CN113431522B (en) | 2021-08-25 | 2021-08-25 | Oil field wellhead device capable of synchronously opening gate valve |
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| CN202110977926.6A CN113431522B (en) | 2021-08-25 | 2021-08-25 | Oil field wellhead device capable of synchronously opening gate valve |
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| CN113431522B CN113431522B (en) | 2021-12-10 |
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Cited By (1)
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| CN114560605A (en) * | 2022-02-17 | 2022-05-31 | 廖建国 | Oily sludge thermochemical washing treatment equipment |
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| CN113431522B (en) | 2021-12-10 |
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