CN104963644B - Oil well head protection device - Google Patents
Oil well head protection device Download PDFInfo
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- CN104963644B CN104963644B CN201510323400.0A CN201510323400A CN104963644B CN 104963644 B CN104963644 B CN 104963644B CN 201510323400 A CN201510323400 A CN 201510323400A CN 104963644 B CN104963644 B CN 104963644B
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- oil well
- well mouth
- theft cover
- connecting rod
- pin
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- 239000003129 oil well Substances 0.000 title claims abstract description 99
- 238000012545 processing Methods 0.000 claims description 10
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 230000006378 damage Effects 0.000 abstract description 5
- 230000002265 prevention Effects 0.000 abstract 2
- 230000005540 biological transmission Effects 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 241001136800 Anas acuta Species 0.000 description 1
- 241000233855 Orchidaceae Species 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
Abstract
The invention discloses an oil well wellhead protection device, which comprises: the anti-theft cover is provided with an opening, the opening is used for corresponding to a flange of an oil well mouth, an opening is formed in the anti-theft cover, a protruding part used for abutting against the flange is arranged on the inner side wall of the anti-theft cover, and a limiting part located below the protruding part is further arranged on the inner side wall of the anti-theft cover; the connecting piece is fixedly connected to the side wall of the oil well wellhead pipeline; the connecting rod is provided with an upper end and a lower end, and the connecting rod is hinged with the connecting piece between the upper end and the lower end; the operating part is connected to the upper end of the connecting rod, the operating part can drive the connecting rod to rotate around the connecting part, and the operating part can be fixed with an oil well wellhead pipeline and corresponds to the position of the opening; and the limiting part is connected to the lower end of the connecting rod. The invention can enable the oil well mouth to have the functions of theft prevention and damage prevention.
Description
Technical field
The present invention relates to oil/gas well development equipment field of tool, more particularly to a kind of oil well mouth protection apparatus.
Background technology
It follows up with the implementation of oil field development process, there are a certain number of oil well uses to finish into discarded rank every year
Section, and then need to carry out closure processing to discarded well mouth of oil well；On the other hand, due to the progress of construction of storage, need simultaneously
Closure processing is carried out to the old well well head in gas storage.The well head of above two closure processing oil well will be chronically at exposed shape
State, and it is connected with for instrument and equipments such as the pressure gauges of state under monitoring well, such oil well is in left unguarded on ordinary days
State, if things go on like this, there are larger security risks.For the situation after current actual production, generally it is present with
Problems with：Producing well head casing valve etc. is often destroyed by people, and the needle valve pressure gauge mounted on well head is also often by people
It lays down or is smashed, somebody even carries out dismounting transformation to steal gas or steal oil to well head pipeline.Conventional closure processing
Although wellhead assembly perfect in shape and function afterwards, it does not possess antitheft and tamper-proof structure, and existing well-mouth theft-prevention mechanism is general
It is arranged in well head pipeline, can solve the problems, such as that gas steals oil steathily, but it can not ensure the external equipment exposed to well head
Do not destroyed, and existing theft-prevention structure is complicated, in storage easily damaged failure under for a long time, for many years after there will be nothings
Method opens the problem of well head.
The content of the invention
In order to overcome the drawbacks described above of the prior art, there is provided a kind of oil well wells for the technical problems to be solved by the invention
Mouth protective device, enables to well mouth of oil well to have the function of antitheft and tamper-proof.
The specific technical solution of the present invention is：
A kind of oil well mouth protection apparatus, it includes：
Anti-theft cover with an opening, the opening are opened on the Anti-theft cover for corresponding with the flange of well mouth of oil well
Equipped with perforate, the madial wall of the Anti-theft cover is equipped with the lug boss mutually propped up with the flange, the Anti-theft cover inside
Wall is additionally provided with the limiting section below the lug boss；
The connector being fixedly connected on well mouth of oil well pipe side wall；
Connecting rod with upper and lower ends is hinged with the connector between the connecting rod upper and lower ends；
The operating parts of the small end is connected to, the operating parts can drive the connecting rod to make it around the connector
It rotates, the operating parts can be mutually fixed and corresponding with the position of opening with well mouth of oil well pipeline；
It is connected to the locating part of the connecting rod lower end；
The oil well mouth protection apparatus has at least two operating positions：During the first operating position, the operating parts energy
It is mutually fixed with well mouth of oil well pipeline, the locating part props up the limiting section；During the second operating position, the locating part is by described
Connecting rod drives, and is separated with the limiting section on the Anti-theft cover, the Anti-theft cover can be carried above and the well mouth of oil well
It is separated.
Preferably, the accommodating hole of the accommodating elastic component and the pin, the limit are offered on the flange of well mouth of oil well
Position part includes pin and elastic component, and the lower end of the connecting rod offers the first through hole, and the pin is threaded through described first and passes through
In perforation, the head of the pin offsets with first through hole, and the elastic component and the pin are arranged at described house
In hole, one end of the elastic component can offset with the flange of well mouth of oil well, and the other end of the elastic component is mutually solid with the pin
Fixed, the locating part has at least two operating positions：During the first operating position, the elastic component opens, the pin afterbody
It offsets with the limiting section；During the first operating position, the pin is driven by connecting rod, the elastic component compression, the pin tail
Portion is separated with the limiting section.
Preferably, there is an inclined-plane that accommodating hole is collapsible into convenient for pin on the limiting section.
Preferably, the upper end of the connecting rod offers the second through hole, and the operating parts is passed through including being threaded through described second
Bolt in perforation, be fixed on well mouth of oil well pipe side wall with the corresponding nut of the bolt location, the bolt is in institute
It states and the small end is driven to move in nut relative movement.
Preferably, the bolt is equipped with the groove to fasten with second through hole.
Preferably, the lug boss includes the baffle ring for being circumferentially provided on Anti-theft cover madial wall.
Preferably, the head of the bolt is cylinder, and side wall is equipped with sawtooth tooth.
Preferably, the oil well mouth protection apparatus further includes spanner, and the spanner includes and the bolt head shape
Adaptable accepting hole and for manually-operated grip part.
Preferably, arc length of the limiting section on the Anti-theft cover madial wall is less than the flange flange of well mouth of oil well
The arc length of portion's notch.
Preferably, it is any in the Anti-theft cover, the connector, the connecting rod, the locating part, the operating parts to pass through
Zinc-plated processing.
The present invention has following notable advantageous effect：
1st, the present invention is easy to operate, need to only use spanner rotary operating member, then above carry Anti-theft cover and unlatching can be completed.
2nd, the present invention is reliability and durability, uses mechanical linkage transmission principle design protection mechanism, transmission is simple and reliable, will not
It fails when of long duration.
3rd, the present invention has anti-theft performance, fixes Anti-theft cover by pin elastic component, pin and elastic component all hold
It is placed in the accommodating hole of wellhead flange, is not easy to be found, and dedicated spanner is needed for opening the antitheft operating parts of pin, from
And it ensure that good anti-theft.
4th, well head and protective device are all set in the inside by the present invention using Anti-theft cover, are not easy to find its interior arrangement,
So as to achieve the purpose that be not easy to be operated destruction.
5th, main parts size of the invention has corrosion resistance using zinc-plated processing, can prevent shut-in well corrosion for a long time
Damage.
Description of the drawings
Task of explanation is only used for attached drawing described here, and is not intended in any way limit model disclosed by the invention
It encloses.In addition, shape and proportional sizes of each component in figure etc. are only schematical, the understanding of the present invention is used to help, and
It is not the specific shape and proportional sizes for limiting each component of the present invention.Those skilled in the art under the teachings of the present invention, can
Various possible shapes and proportional sizes to be selected to implement the present invention as the case may be.
Fig. 1 is the structure diagram of oil well mouth protection apparatus of the present invention.
Fig. 2 is the front view of spanner in the present invention.
Fig. 3 is the left view of spanner in the present invention.
The reference numeral of the figures above：
1st, wellhead flange；11st, flange part；111st, notch；12nd, accommodating hole；2nd, Anti-theft cover；21st, lug boss；22nd, limiting section；
221st, inclined-plane；23rd, perforate；24th, it is open；3rd, spanner；31st, accepting hole；32nd, grip part；4th, connector；41st, axis pin；42nd, it is fixed
Ear；5th, connecting rod；51st, the first through hole；52nd, the second through hole；6th, operating parts；61st, nut；62nd, bolt；7th, locating part；71st, sell
Nail；72nd, elastic component.
Specific embodiment
With reference to the drawings and the description of the specific embodiments of the present invention, the details of the present invention can clearly be understood.But
It is the specific embodiment of invention described herein, is only used for explaining the purpose of the present invention, and cannot understands in any way
Into being limitation of the present invention.Under the teachings of the present invention, technical staff is contemplated that the arbitrary possible change based on the present invention
Shape, these are regarded as belonging to the scope of the present invention.
A kind of oil well mouth protection apparatus, it includes：Anti-theft cover with an opening 23, opening 23 is used for and well mouth of oil well
Flange 1 is corresponding, and perforate is offered on Anti-theft cover 2, and the madial wall of Anti-theft cover 2 is equipped with the lug boss mutually propped up with flange
21,2 madial wall of Anti-theft cover is additionally provided with the limiting section 22 positioned at 21 lower section of lug boss；It is fixedly connected on well mouth of oil well pipe side wall
Connector 4；Connecting rod 5 with upper and lower ends is hinged with connector 4 between 5 upper and lower ends of connecting rod；It is connected to connecting rod 5
The operating parts 6 of upper end, operating parts 6 can drive connecting rod 5 that it is made to be rotated around connector 4, and operating parts 6 can be with well mouth of oil well pipeline phase
It is fixed and corresponding with 23 position of perforate；It is connected to the locating part 7 of 5 lower end of connecting rod；Oil well mouth protection apparatus has at least
Two operating positions：During the first operating position, operating parts 6 can mutually be fixed with well mouth of oil well pipeline, and locating part 7 props up limiting section
22；During the second operating position, locating part 7 is driven by connecting rod 5, is separated with the limiting section 22 on Anti-theft cover 2, Anti-theft cover 2 can
It is separated by above carrying with well mouth of oil well.
Specifically, Fig. 1 is the structure diagram of oil well mouth protection apparatus of the present invention, as shown in Figure 1, Anti-theft cover 2
Radial section is rounded, has a downward opening 24, and the shape of the opening 24 is corresponding with the flange of well mouth of oil well, so
Also rounded inside opening 24, the other end of Anti-theft cover 2 is located at its internal device in closed state to protect.It is antitheft
The madial wall of cover 2 is equipped with the lug boss 21 mutually propped up with flange.The lug boss 21 includes being circumferentially provided in Anti-theft cover 2
Baffle ring on side wall.When 2 sets of Anti-theft cover is set on well mouth of oil well, lug boss 21 and well mouth of oil well on 2 madial wall of Anti-theft cover
Flange mutually props up, and Anti-theft cover 2 can not continue to glide.A limit for being located at 21 lower section of lug boss is additionally provided on the madial wall of Anti-theft cover 2
Position portion 22, the limiting section 22 are used to carry out /V to locating part 7.Perforate 23 is offered on the side wall of Anti-theft cover 2, the perforate 23
Position is corresponding with the position of operating parts 6, operating personnel can be stretched by 3 grade instruments of spanner in Anti-theft cover 2 to operating parts 6 into
Row operation so that operating parts 6 can reach fixed or be departed from well mouth of oil well flange 1.
The connector 4 being fixedly connected on well mouth of oil well pipe side wall, the connector 4 include fixed ear 42 and axis pin 41.
Fixed ear 42 is arranged on well mouth of oil well pipe side wall, and the connecting rod 5 with upper and lower ends is threaded through fixed ear 42 by axis pin 41
On, and then connecting rod 5 is formed with connector 4 and is hinged.Connecting rod 5 forms a lever with connector 4, and connecting rod 5 can be around axis pin 41 one
Determine to rotate in degree.The upper end of connecting rod 5 is provided with operating parts 6.Operating parts 6 can drive connecting rod 5 to make it around 4 turns of connector
Dynamic, operating parts 6 can be mutually fixed and corresponding with 23 position of perforate with well mouth of oil well pipeline.The upper end of connecting rod 5 offers second
Through hole 52, operating parts 6 include being threaded through bolt 62 in the second through hole 52, are fixed on well mouth of oil well pipe side wall and spiral shell
The corresponding nut 61 in 62 position of bolt, bolt 62 drive 5 upper end of connecting rod to move in 61 relative movement of nut.It is preferred that
, bolt 62 is equipped with the groove to fasten with the second through hole 52, so that bolt 62 is passed with 5 phase fixation of connecting rod with reaching
Dynamic purpose.
The locating part 7 of 5 lower end of connecting rod is connected to, which can prop up limiting section 22 so that Anti-theft cover 2 can not be with oil
Well well head is separated.Specifically, there are the protrusions of a flange part 11, the i.e. flange part 11 and Anti-theft cover 2 for well mouth of oil well flange 1
21 phase of portion props up.A notch 111 is processed on the flange part 11,111 size of notch is corresponding with limiting section 22 so that limit
Position portion 22 can pass through.The locating part 7 can be in a cross bar, and level is fixedly connected on the lower end of connecting rod 5, together with connecting rod 5
L-type is formed, the right part of cross bar can prop up limiting section 22 so that Anti-theft cover 2 can not be separated with well mouth of oil well.
Oil well mouth protection apparatus has at least two operating positions：At the first operating position, bolt 62 is screwed into fixed
In nut 61 on well mouth of oil well pipe side wall, bolt 62 is mutually fixed with well mouth of oil well, and the right end of cross bar is propped up on Anti-theft cover 2
Limiting section 22 so that Anti-theft cover 2 can not be separated with well mouth of oil well；At the second operating position, cross bar is driven by connecting rod 5,
It is separated with the limiting section 22 on Anti-theft cover 2, bolt 62 is back-outed in the nut 61 being installed on well mouth of oil well pipe side wall, antitheft
Cover 2 can be separated with well mouth of oil well.
The operation principle of the present invention is as follows：When carrying out closure processing to well mouth of oil well, bolt 62 is back-outed first
The nut 61 being installed on well mouth of oil well pipe side wall, since bolt 62 is equipped with the groove to fasten with the second through hole 52,
With being moved to the left for bolt 62, the upper end of connecting rod 5 is driven, pin 71 of the connecting rod 5 in connector 4 is made to occur to turn clockwise
It is dynamic.Then 5 lower end of connecting rod drives the cross bar of locating part 7 to move to the left, at this point, limiting section 22 and oil well by Anti-theft cover 2
The notch 111 of 1 upper flange part 11 of wellhead flange is corresponding to be set in well mouth of oil well by Anti-theft cover 2, and the limiting section 22 of Anti-theft cover 2 is logical
Cross the notch 111 of 1 upper flange part 11 of well mouth of oil well flange, lug boss 21 and 1 upper flange part 11 of well mouth of oil well flange of Anti-theft cover 2
Mutually prop up.Then, spanner 3 is stretched into the opening 24 of Anti-theft cover 2 Anti-theft cover 2 is outer, bolt 62 is tightened, bolt 62 into
Enter nut 61 to move to the left, and then drive connecting rod 5 so that connecting rod 5 is rotated counterclockwise around pin 71,5 lower end of connecting rod
It moves to the right, final drive 7 cross bar of locating part moves right and it is made to prop up the limiting section 22 on Anti-theft cover 2 so that antitheft
Cover 2 can not be separated with well mouth of oil well.Due to being tightened between 6 bolt 62 of operating parts and nut 61 by screw thread, inartificial
Under the operation of spanner 3, the two will not loosen, and locating part 7 will prop up limiting section 22 always, and Anti-theft cover 2 will be safe and reliable
Well mouth of oil well is set in, can not be departed from, in this way, entire oil well mouth protection apparatus protects the equipment of well mouth of oil well not broken
It is bad.At this point, entire Anti-theft cover 2 can also be rotated around its axis so that the perforate 23 on Anti-theft cover 2 deviates operating parts 6
It puts so that the people commonly passed through can not discover internal structure in the case of misalignment perforate 23 and operating parts 6, more be not easy
Open Anti-theft cover 2.Meanwhile at regular intervals when staff is monitored the oil well of closure, it can rotate entire anti-
Steal cover 2 so that the perforate 23 on Anti-theft cover 2 facilitates against the manometer on well mouth of oil well and reads borehole pressure data.
When needing to open well mouth of oil well, Anti-theft cover 2 is rotated so that the perforate 23 of Anti-theft cover 2 is corresponding with bolt 62, uses
Spanner 3 stretches into 2 perforate 23 of Anti-theft cover, loosers a bolt 62.Bolt 62 moves to the right, while connecting rod 5 is driven to rotate clockwise,
The lower end of connecting rod 5 is moved to the left, and the locating part 7 of 5 lower end of connecting rod is moved to the left, the limiting section of locating part 7 and Anti-theft cover 2
22 are separated, and may lift up Anti-theft cover 2 at this time, remove oil well mouth protection apparatus.
Oil well mouth protection apparatus in the present invention is easy to operate, need to only spanner 3 be used to stretch into the perforate 23 on Anti-theft cover 2
Then rotary operating member 6 above carries Anti-theft cover 2 and unlatching to Anti-theft cover 2 can be completed.Secondly, whole device is reliability and durability, adopts
With 5 transmission principle design protection mechanism of mechanical linkage, transmission is simple and reliable, will not fail when of long duration.Moreover, in the present invention
Anti-theft cover 2 well head and protective device are all set in inside Anti-theft cover 2, the under shed 24 of Anti-theft cover 2 is by well mouth of oil well method
Orchid 1 seals, and thief is not easy to find its interior arrangement, so as to achieve the purpose that be not easy to be operated destruction.
In a preferred embodiment, the head of bolt 62 is cylinder, and side wall is equipped with sawtooth tooth.In this way,
Even if thief is found that the structure of operating parts 6 in this oil well mouth protection apparatus, since 62 head of bolt is cylinder, easily
It skids, can not be stretched by simple instrument in the perforate 23 of Anti-theft cover 2 and bolt 62 is turned.Well mouth of oil well protection dress
Put and further include a spanner 3, Fig. 2 is the front view of spanner 3 in the present invention, and Fig. 3 is the left view of spanner 3 in the present invention, such as Fig. 2 and
Shown in Fig. 3, which includes the accepting hole 31 being adapted with 62 head shape of bolt and for manually-operated grip part 32.
It is sub- that sawtooth corresponding with the head of bolt 62 is offered on the inner wall of accepting hole 31, in this way, staff is special using this
Spanner 3 can be easily accomplished the operation to oil well mouth protection apparatus.
In a preferred embodiment, arc length of the limiting section 22 on 2 madial wall of Anti-theft cover is less than oil well well
The arc length of 11 notch 111 of flange flange portion of mouth.In this way, trapping can ensure when setting Anti-theft cover 2 on 2 madial wall of Anti-theft cover
Limiting section 22 can easily pass through 11 notch 111 of flange flange portion of well mouth of oil well, it is not hindered.But limiting section 22 exists
Arc length on 2 madial wall of Anti-theft cover cannot be too small, when rotating Anti-theft cover 2, when limiting section 22 and flange flange portion 11 are firm
During contact, the gap that the notch 111 in limiting section 22 and flange flange portion 11 is formed cannot be excessive, and otherwise locating part 7 can be by this
Gap is by and then directly can above carry Anti-theft cover 2.When arc length and oil well of the limiting section 22 on 2 madial wall of Anti-theft cover
The arc length of 11 notch 111 of flange flange portion of well head is adapted down, you can effectively so that limiting section 22 is convex by flange
11 notch 111 of edge, when Anti-theft cover 2 rotates, limiting section 22 is effectively propped up with 11 phase of flange flange portion, prevents Anti-theft cover 2
Above carried.
In a preferred embodiment, as shown in Figure 1, locating part 7 can be another mechanism, locating part 7 can
To include pin 71 and elastic component 72, the lower end of connecting rod 5 offers the first through hole 51, and pin 71 is threaded through the first through hole 51
In, the head of pin 71 offsets with the first through hole 51, and accommodating elastic component 72 and pin 71 are offered on the flange of well mouth of oil well
Accommodating hole 12, elastic component 72 and pin 71 be arranged in accommodating hole 12, and one end of elastic component 72 can be with the flange of well mouth of oil well
It offsets, the other end and 71 phase of pin of elastic component 72 are fixed, and locating part 7 has at least two operating positions：First operating position
When, elastic component 72 opens, and 71 afterbody of pin offsets with limiting section 22；During the first operating position, pin 71 is driven by connecting rod 5, bullet
Property part 72 compresses, and 71 afterbody of pin is separated with limiting section 22.Elastic component 72 can be spring.The work of this kind of locating part 7 is former
Reason is as follows：When connecting rod 5 rotates clockwise, the lower end of connecting rod 5 drives the head of pin 71 to be moved to the left, and pin 71 drives
Elastic component 72, the elastic component 72 being arranged in accommodating hole 12 compress, and support into 71 afterbody of pin at 2 limiting section 22 of Anti-theft cover to the left
Generation movement is separated with 2 limiting section 22 of Anti-theft cover, may lift up Anti-theft cover 2 at this time, opens well head.After Anti-theft cover 2 above carries,
Pin 71 in accommodating hole 12 is promoted by the tension of elastic component 72, is moved right, the lower end of final connecting rod 5 offsets with flange.
When needing to be arranged Anti-theft cover 2, bolt 62 is unscrewed in the perforate 23 that Anti-theft cover 2 is stretched by spanner 3, and bolt 62 drives
Connecting rod 5 moves, and the lower end of connecting rod 5 and then pin 71 is driven to be moved to the left, in the accommodating hole 12 on 71 afterbody of pin income flange.
It traps at this time Anti-theft cover 2, the limiting section 22 into Anti-theft cover 2 is supported to a certain extent under the action of elastic component 72 in pin 71, this
When bolt 62 is tightened by spanner 3 again, improve the reliability that pin 71 props up 2 limiting section 22 of Anti-theft cover so that Anti-theft cover 2 can not
It above carries easily.This oil well mouth protection apparatus has better anti-theft performance, is fixed by 71 elastic component 72 of pin anti-
Cover 2 is stolen, pin 71 and elastic component 72 are all placed in the accommodating hole 12 of wellhead flange 1, are not easy to be found, and for opening pin
71 antitheft operating parts 6 needs dedicated spanner 3, so as to ensure that good anti-theft.
Have one to be used to be collapsible into accommodating hole convenient for pin 71 in a kind of more preferred embodiment, on limiting section 22
12 inclined-plane 221.The inclined-plane 221 is located at the downside of limiting section 22, in this way, when being arranged Anti-theft cover 2, pin 71 will be along /V
Inclined-plane 221 in portion 22 is moved to the left, compression elastic piece 72, in retraction accommodating hole 12.When 2 tripping in of Anti-theft cover to certain phase
When, when pin 71 is between 2 lug boss 21 of Anti-theft cover and limiting section 22, pin 71 under the action of 72 tension of elastic component to the right
It is mobile to restore, and then support between limiting section 22 and lug boss 21, finally so that Anti-theft cover 2 can not be separated with well mouth of oil well.
In a preferred embodiment, the Anti-theft cover 2 in this oil well mouth protection apparatus, connector 4, connecting rod 5, limit
Position part 7, operating parts 6 pass through zinc-plated processing.In this way, its main parts size can be caused into the device using zinc-plated processing
With corrosion resistance, and then prevent corrosion and damage of shunting in a well for a long time, while the device is protected, each the zero of still further aspect protective device
Flexibility between part prevents occurring the appearance that can not open well head problem afterwards for many years.
Each embodiment in this specification is described by the way of progressive, the highlights of each of the examples are with
The difference of other embodiment, just to refer each other for identical similar part between each embodiment.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar can understand present disclosure and implement according to this, and it is not intended to limit the scope of the present invention.It is all according to the present invention
The equivalent change or modification that Spirit Essence is made, should be covered by the protection scope of the present invention.
Claims (9)
1. a kind of oil well mouth protection apparatus, which is characterized in that it includes：
Anti-theft cover with an opening, the opening are offered on the Anti-theft cover for corresponding with the flange of well mouth of oil well
Perforate, the madial wall of the Anti-theft cover are equipped with the lug boss mutually propped up with the flange, and the Anti-theft cover madial wall is also
Equipped with the limiting section below the lug boss；
The connector being fixedly connected on well mouth of oil well pipe side wall；
Connecting rod with upper and lower ends is hinged with the connector between the connecting rod upper and lower ends；
The operating parts of the small end is connected to, the operating parts can drive the connecting rod that it is made to turn around the connector
Dynamic, the operating parts can be mutually fixed and corresponding with the position of opening with well mouth of oil well pipeline, and the Anti-theft cover can be around it
Axis rotates, so that the perforate on the Anti-theft cover deviates the operating parts position；
The locating part of the connecting rod lower end is connected to, the accommodating of accommodating elastic component and pin is offered on the flange of well mouth of oil well
Hole, the locating part include pin and elastic component, and the lower end of the connecting rod offers the first through hole, and the pin is threaded through institute
It states in the first through hole, the head of the pin offsets with first through hole, and the elastic component and the pin are arranged at
In the accommodating hole, one end of the elastic component can offset with the flange of well mouth of oil well, the other end of the elastic component with it is described
Pin is mutually fixed, and the locating part has at least two operating positions：During the first operating position, the elastic component opens, described
Pin afterbody offsets with the limiting section；During the second operating position, the pin is driven by connecting rod, the elastic component compression, institute
Pin afterbody is stated to be separated with the limiting section；
The oil well mouth protection apparatus has at least two operating positions：During the first operating position, the operating parts can be with oil
Well well head pipeline is mutually fixed, and the locating part props up the limiting section；During the second operating position, the locating part is by the connecting rod
It drives, is separated with the limiting section on the Anti-theft cover, the Anti-theft cover can be carried above mutually to be taken off with the well mouth of oil well
From.
2. oil well mouth protection apparatus according to claim 1, it is characterised in that：Have one to be convenient for pin on the limiting section
Nail is collapsible into the inclined-plane of accommodating hole.
3. oil well mouth protection apparatus according to claim 1, it is characterised in that：The upper end of the connecting rod offers second
Through hole, the operating parts include being threaded through bolt in second through hole, be fixed on well mouth of oil well pipe side wall with
The corresponding nut of bolt location, the bolt drive the small end to occur in the nut relative movement
It is mobile.
4. oil well mouth protection apparatus according to claim 3, it is characterised in that：The bolt is equipped with and described second
The groove that through hole fastens.
5. oil well mouth protection apparatus according to claim 1, it is characterised in that：The lug boss includes being circumferentially provided on
The baffle ring of Anti-theft cover madial wall.
6. oil well mouth protection apparatus according to claim 3, it is characterised in that：The head of the bolt is cylinder,
Its side wall is equipped with sawtooth tooth.
7. oil well mouth protection apparatus according to claim 6, it is characterised in that：The oil well mouth protection apparatus also wraps
Spanner is included, the spanner includes the accepting hole being adapted with the bolt head shape and for manually-operated grip part.
8. oil well mouth protection apparatus according to claim 1, it is characterised in that：The limiting section is in the Anti-theft cover
Arc length on side wall is less than the arc length of the flange flange portion notch of well mouth of oil well.
9. oil well mouth protection apparatus according to claim 1, it is characterised in that：The Anti-theft cover, the connector, institute
It states and any in connecting rod, the locating part, the operating parts passes through zinc-plated processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510323400.0A CN104963644B (en) | 2015-06-12 | 2015-06-12 | Oil well head protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510323400.0A CN104963644B (en) | 2015-06-12 | 2015-06-12 | Oil well head protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4366970A (en) * | 1980-08-15 | 1983-01-04 | Hogan Jr Robert J | Theft prevention method and apparatus for wellheads |
| CN2632300Y (en) * | 2002-12-17 | 2004-08-11 | 李建设 | Full direction multifunctional polish rod sealer |
| CN102434122A (en) * | 2011-08-17 | 2012-05-02 | 中国石油天然气股份有限公司 | Anti-theft wellhead device |
| CN202659199U (en) * | 2012-06-27 | 2013-01-09 | 王彪 | Anti-theft device for oil producing wellhead |
| CN204804740U (en) * | 2015-06-12 | 2015-11-25 | 中国石油天然气股份有限公司 | Oil well head protection device |
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2015
- 2015-06-12 CN CN201510323400.0A patent/CN104963644B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4366970A (en) * | 1980-08-15 | 1983-01-04 | Hogan Jr Robert J | Theft prevention method and apparatus for wellheads |
| CN2632300Y (en) * | 2002-12-17 | 2004-08-11 | 李建设 | Full direction multifunctional polish rod sealer |
| CN102434122A (en) * | 2011-08-17 | 2012-05-02 | 中国石油天然气股份有限公司 | Anti-theft wellhead device |
| CN202659199U (en) * | 2012-06-27 | 2013-01-09 | 王彪 | Anti-theft device for oil producing wellhead |
| CN204804740U (en) * | 2015-06-12 | 2015-11-25 | 中国石油天然气股份有限公司 | Oil well head protection device |
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