CN207905755U - A kind of oil well head sealing device - Google Patents
A kind of oil well head sealing device Download PDFInfo
- Publication number
- CN207905755U CN207905755U CN201721746714.2U CN201721746714U CN207905755U CN 207905755 U CN207905755 U CN 207905755U CN 201721746714 U CN201721746714 U CN 201721746714U CN 207905755 U CN207905755 U CN 207905755U
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- China
- Prior art keywords
- cavity
- fixedly connected
- movable plate
- well head
- spring
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Abstract
The utility model discloses a kind of oil well head sealing devices, including wellhead body, the wellhead body upper surface is fixedly connected with fixed plate, the inside of fixed plate is opened up there are two the second symmetrical cavity, sliding slot is offered on the inner roof wall and inner bottom wall of each second cavity, the inside of each second cavity is placed with movable plate compatible with the second cavity.The oil well head sealing device, by the way that fixed plate is arranged in the upper surface of wellhead body, and offer the second cavity in the inside of fixed plate, by the way that sliding slot and push rod is arranged in the inside of the second cavity, under the collective effect of sliding slot and sliding block, utilize the elastic force of the first spring and second spring, push rod can push movable plate to move piston, under the action of the first spring and second spring, two movable plates push two pistons to be touched in the interior thereof of the first cavity, the sealing of the first step can be carried out to wellhead body, sealing effect is good, effective the problem of avoiding Oil spills.
Description
Technical field
The utility model is related to petroleum technology field, specially a kind of oil well head sealing device.
Background technology
Oil is one of main object of geological prospecting, is a kind of sticky, dark brown liquid, is referred to as " industrial blood
Liquid ", it is the mixture of various alkane, cycloalkane and aromatic hydrocarbon that, which there are petroleum storage, main component in upper crustal some areas,.
Oil well head once damages, and worker is big to the maintenance workload of oil pipe, and existing most of oil well heads are close
Envelope effect is poor, and oil well head is susceptible to leakage problem, is often not easy to repair and hunt leak, inconvenient to use.
Utility model content
(1) the technical issues of solving
In view of the deficiencies of the prior art, the utility model provides a kind of oil well head sealing device, solves existing
The poor problem of most of oil well head sealing effects.
(2) technical solution
To achieve the above object, the utility model provides the following technical solutions：A kind of oil well head sealing device, including well
Mouthful ontology, the wellhead body upper surface are fixedly connected with fixed plate, and the inside of the fixed plate opens up that there are two symmetrical
Second cavity each offers sliding slot in the inner roof wall of second cavity and inner bottom wall, and each second cavity is interior
Portion is placed with movable plate compatible with the second cavity, and edge is fixed on the madial wall that two second cavitys are located remotely from each other
Embedded with fixing pipe, each movable plate is fixedly connected with cylindrical push rod in the middle part of fixing pipe one side, often
A one end of the push rod far from movable plate runs through fixing pipe and extends to the outside of fixed plate, and each push rod is far from living
The one side of movable plate has been fixedly connected with limiting plate.
The one side that two movable plates are located remotely from each other is fixedly connected with there are two symmetrical second spring, Mei Gesuo
It states the one end of second spring far from movable plate to be fixedly connected with the madial wall of the second cavity, two movable plates are located remotely from each other
The first spring is fixedly connected in the middle part of one side, each described one end of first spring far from movable plate is close with fixing pipe
The edge of movable plate one side is fixedly connected, and two movable plate one sides close to each other have been fixedly connected with piston,
The first cavity is offered in the middle part of the fixed plate upper surface, and the first cavity is connected with wellhead body, each described second
Cavity offers notch compatible with piston on the madial wall of the first cavity, and each second cavity is by lacking
Mouth is connected with the first cavity, and each one end of the piston far from movable plate all extends in notch.
The upper surface of the fixed plate is fixedly connected with connecting tube, and the first cavity is connected with connecting tube, the connection
It is placed with sealing cover above pipe, gasket, the internal sleeve of the connecting tube are fixedly connected on the inner roof wall of the sealing cover
Equipped with screwed pipe, the upper surface of the connecting tube is fixedly connected with nut, and the top of the screwed pipe through nut and extends to
The top of connecting tube, and the inner ring of the outer surface of screwed pipe and nut is threadedly coupled, the screwed pipe is located at the lower section of sealing cover,
And top and the sealing cover threaded connection of screwed pipe, the bottom surface of the screwed pipe, which is fixed, is communicated with oil inlet pipe, the oil inlet pipe
Bottom end extends in the first cavity.
Preferably, two second springs are located at the both sides of push rod, two first springs respectively with two
Push rod socket-connects.
Preferably, the upper surface and bottom surface of the movable plate have been fixedly connected with sliding block compatible with sliding slot, and sliding block
It is connected in sliding slot.
Preferably, the diameter value of the screwed pipe and the diameter value of oil inlet pipe are equal, and the diameter value of the oil inlet pipe is less than
The diameter value of first cavity.
Preferably, fixed on the inner wall of the notch to be inlaid with the sealing ring being spaced substantially equidistant, and each sealing ring is interior
Wall is in contact with the outer surface of piston.
Preferably, two second cavitys are located at the both sides of the first cavity, the vertical length value of the limiting plate
More than the diameter value of fixing pipe inner ring.
(3) advantageous effect
The utility model provides a kind of oil well head sealing device, has following advantageous effect：
(1) oil well head sealing device, by the way that fixed plate is arranged in the upper surface of wellhead body, and in fixed plate
Portion offers the first cavity and the second cavity, by the way that sliding slot, sliding block, movable plate and push rod is arranged in the inside of the second cavity,
Under the collective effect of sliding slot and sliding block, using the elastic force of the first spring and second spring, push rod can push movable plate to piston
It is moved, under the action of the first spring and second spring, two movable plates push two pistons in the inside of the first cavity
It is in contact, the sealing of the first step can be carried out to wellhead body, sealing effect is good, the problem of effectively avoiding Oil spills.
(2) oil well head sealing device can effectively avoid oil from flowing into the by the way that sealing ring is arranged in notch
In two cavitys, sealing effect is more preferable, can be further by being threaded pipe, gasket and sealing cover above fixed plate
Wellhead body is sealed, sealing effect is preferable, and significantly more efficient the problem of avoiding Oil spills, use is more convenient.
Description of the drawings
Fig. 1 is the sectional view of the utility model import ontology front view；
Fig. 2 is structure enlargement diagram at A in the utility model Fig. 1.
In figure：1 wellhead body, 2 first cavitys, 3 limiting plates, 4 push rods, 5 fixed plates, 6 sealing rings, 7 sealing covers, 8 sealings
Pad, 9 nuts, 10 connecting tubes, 11 screwed pipes, 12 oil inlet pipes, 13 sliding blocks, 14 sliding slots, 15 fixing pipes, 16 first springs, 17 second
Spring, 18 pistons, 19 second cavitys, 20 notches, 21 movable plates.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
- 2 are please referred to Fig.1, the utility model provides a kind of technical solution：A kind of oil well head sealing device, including well head
Ontology 1,1 upper surface of wellhead body are fixedly connected with fixed plate 5, and it is empty that the inside of fixed plate 5 opens up that there are two symmetrical second
Chamber 19, two the second cavitys 19 are located at the both sides of the first cavity 2, and the vertical length value of limiting plate 3 is more than in fixing pipe 15
The diameter value of circle can limit push rod 4, and sliding slot is offered on the inner roof wall and inner bottom wall of each second cavity 19
14, the inside of each second cavity 19 is placed with movable plate 21 compatible with the second cavity 19, the upper surface of movable plate 21
It is fixedly connected with sliding block 13 compatible with sliding slot 14 with bottom surface, and sliding block 13 is connected in sliding slot 14, in sliding slot 14 and slided
Under the collective effect of block 13, using the elastic force of the first spring 16 and second spring 17, push rod 4 can push movable plate 21 to piston
18 are moved, and fixation is inlaid with fixing pipe 15, each movable plate 21 on the madial wall that two the second cavitys 19 are located remotely from each other
Be fixedly connected with cylindrical push rod 4 in the middle part of fixing pipe 15 one side, each push rod 4 far from movable plate 21 one
End runs through fixing pipe 15 and extends to the outside of fixed plate 5, and one side of each push rod 4 far from movable plate 21 is fixedly connected with
There is limiting plate 3.
The one side that two movable plates 21 are located remotely from each other is fixedly connected with there are two symmetrical second spring 17, two the
Two springs 17 are located at the both sides of push rod 4, and two the first springs 16 socket-connect with two push rods 4 respectively, two movable plates 21
It pushes two pistons 18 to be touched in the interior thereof of the first cavity 2, the sealing of the first step, sealing effect can be carried out to wellhead body 1
Fruit is good, the problem of effectively avoiding Oil spills, the one end of each second spring 17 far from movable plate 21 with the second cavity
19 madial wall is fixedly connected, and two movable plates 21, which are located remotely from each other in the middle part of one side, is fixedly connected with the first spring 16, each
First one end of spring 16 far from movable plate 21 is fixedly connected with fixing pipe 15 close to the edge of 21 one side of movable plate, and two
The one side close to each other of a movable plate 21 has been fixedly connected with piston 18, and the first sky is offered in the middle part of 5 upper surface of fixed plate
Chamber 2, and the first cavity 2 is connected with wellhead body 1, each second cavity 19 opens up on the madial wall of the first cavity 2
There is notch 20 compatible with piston 18, fixed on the inner wall of notch 20 and be inlaid with the sealing ring 6 being spaced substantially equidistant, and is each close
The inner wall of seal 6 is in contact with the outer surface of piston 18, and oil can effectively be avoided to flow into the second cavity 19, sealing effect
Fruit is more preferable, and each second cavity 19 is connected by notch 20 with the first cavity 2, each piston 18 far from movable plate 21 one
End all extends in notch 20.
The upper surface of fixed plate 5 is fixedly connected with connecting tube 10, and the first cavity 2 is connected with connecting tube 10, connecting tube
10 top is placed with sealing cover 7, and gasket 8 is fixedly connected on the inner roof wall of sealing cover 7, can be carried out to wellhead body 1
The sealing of the first step, sealing effect is good, the problem of effectively avoiding Oil spills, and the internal sleeve of connecting tube 10 is equipped with screwed pipe
11, the diameter value of screwed pipe 11 and the diameter value of oil inlet pipe 12 are equal, and the diameter value of oil inlet pipe 12 is less than the diameter of the first cavity 2
Value, can further be sealed wellhead body 1, sealing effect is preferable, significantly more efficient to avoid asking for Oil spills
Topic, use is more convenient, and the upper surface of connecting tube 10 is fixedly connected with nut 9, and the top of screwed pipe 11 through nut 9 and extends to
The top of connecting tube 10, and the inner ring of the outer surface of screwed pipe 11 and nut 9 is threadedly coupled, screwed pipe 11 is located at sealing cover 7
Lower section, and the top of screwed pipe 11 and sealing cover 7 are threadedly coupled, and the sealing of the first step, sealing effect can be carried out to wellhead body 1
Fruit is good, the problem of effectively avoiding Oil spills, and the bottom surface of screwed pipe 11, which is fixed, is communicated with oil inlet pipe 12, the bottom of oil inlet pipe 12
End extends in the first cavity 2.
Operation principle：Sealing cover 7 and screwed pipe 11 are threadedly coupled, reaches the sealing to screwed pipe 11, turns spiral shell
Line pipe 11 carries oil inlet pipe 12 to the top of notch 20, under the collective effect of sliding slot 14 and sliding block 13,4 promotion activity of push rod
Plate 21 moves piston 18, and under the action of the first spring 16 and second spring 17, two movable plates 21 push two work
Plug 18 is touched in the interior thereof of the first cavity 2, can be effectively sealed to wellhead body 1, sealing effect is good.
In conclusion the oil well head sealing device, by the way that fixed plate 5 is arranged in the upper surface of wellhead body 1, and solid
The inside of fixed board 5 offers the first cavity 2 and the second cavity 19, by the way that sliding slot 14, sliding block is arranged in the inside of the second cavity 19
13, movable plate 21 and push rod 4 utilize the first spring 16 and second spring 17 under the collective effect of sliding slot 14 and sliding block 13
Elastic force, push rod 4 can push movable plate 21 to move piston 18, under the action of the first spring 16 and second spring 17,
Two movable plates 21 push two pistons 18 to be touched in the interior thereof of the first cavity 2, can carry out the first step to wellhead body 1
Sealing, sealing effect is good, the problem of effectively avoiding Oil spills, can be effective by the way that sealing ring 6 is arranged in notch 20
Avoid oil flow into the second cavity 19 in, sealing effect is more preferable, by the top of fixed plate 5 be threaded pipe 11, sealing
Pad 8 and sealing cover 7 can further be sealed wellhead body 1, and sealing effect is preferable, significantly more efficient to avoid stone
The problem of oil leakage, use is more convenient.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (6)
1. a kind of oil well head sealing device, including wellhead body (1), it is characterised in that：Wellhead body (1) upper surface is solid
Surely it is connected with fixed plate (5), the inside of the fixed plate (5) is opened up there are two symmetrical the second cavity (19), each described
Sliding slot (14) is offered on the inner roof wall and inner bottom wall of second cavity (19), the inside of each second cavity (19) is put
It is equipped with the compatible movable plate (21) with the second cavity (19), on the madial wall that two second cavitys (19) are located remotely from each other
Fixation is inlaid with fixing pipe (15), and each movable plate (21) has been fixedly connected in the middle part of fixing pipe (15) one side
Cylindrical push rod (4), each one end of the push rod (4) far from movable plate (21) are run through fixing pipe (15) and are extended to
The outside of fixed plate (5), each one side of the push rod (4) far from movable plate (21) have been fixedly connected with limiting plate (3)；
The one side that two movable plates (21) are located remotely from each other is fixedly connected with there are two symmetrical second spring (17), often
The one end of a second spring (17) far from movable plate (21) is fixedly connected with the madial wall of the second cavity (19), two institutes
It states movable plate (21) and is located remotely from each other in the middle part of one side and be fixedly connected with the first spring (16), each first spring (16) is remote
One end from movable plate (21) is fixedly connected with fixing pipe (15) close to the edge of movable plate (21) one side, described in two
Movable plate (21) one side close to each other has been fixedly connected with piston (18), is opened up in the middle part of fixed plate (5) upper surface
There is the first cavity (2), and the first cavity (2) is connected with wellhead body (1), each second cavity (19) is empty close to first
It offers on the madial wall of chamber (2) and passes through with the compatible notch (20) of piston (18), each second cavity (19)
Notch (20) is connected with the first cavity (2), and each one end of the piston (18) far from movable plate (21) all extends to notch
(20) in；
The upper surface of the fixed plate (5) is fixedly connected with connecting tube (10), and the first cavity (2) is connected with connecting tube (10)
It is logical, it is placed with sealing cover (7) above the connecting tube (10), sealing is fixedly connected on the inner roof wall of the sealing cover (7)
It pads (8), the internal sleeve of the connecting tube (10) is equipped with screwed pipe (11), and the upper surface of the connecting tube (10) is fixedly connected with spiral shell
The top of female (9), the screwed pipe (11) runs through nut (9) and extends to the top of connecting tube (10), and screwed pipe (11)
The inner ring of outer surface and nut (9) is threadedly coupled, and the screwed pipe (11) is located at the lower section of sealing cover (7), and screwed pipe (11)
Top and sealing cover (7) be threadedly coupled, the bottom surface of the screwed pipe (11) is fixed and is communicated with oil inlet pipe (12), the oil inlet pipe
(12) bottom end extends in the first cavity (2).
2. a kind of oil well head sealing device according to claim 1, it is characterised in that：Two second springs (17)
The both sides of push rod (4) are located at, two first springs (16) socket-connect with two push rods (4) respectively.
3. a kind of oil well head sealing device according to claim 1, it is characterised in that：The upper table of the movable plate (21)
Face and bottom surface have been fixedly connected with and the compatible sliding block (13) of sliding slot (14), and sliding block (13) is connected in sliding slot (14).
4. a kind of oil well head sealing device according to claim 1, it is characterised in that：The diameter of the screwed pipe (11)
Value is equal with the diameter value of oil inlet pipe (12), and the diameter value of the oil inlet pipe (12) is less than the diameter value of the first cavity (2).
5. a kind of oil well head sealing device according to claim 1, it is characterised in that：On the inner wall of the notch (20)
It is fixed to be inlaid with the sealing ring (6) being spaced substantially equidistant, and the inner wall of each sealing ring (6) connects with the outer surface of piston (18)
It touches.
6. a kind of oil well head sealing device according to claim 1, it is characterised in that：Two second cavitys (19)
The both sides of the first cavity (2) are located at, the vertical length value of the limiting plate (3) is more than the diameter of fixing pipe (15) inner ring
Value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721746714.2U CN207905755U (en) | 2017-12-14 | 2017-12-14 | A kind of oil well head sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721746714.2U CN207905755U (en) | 2017-12-14 | 2017-12-14 | A kind of oil well head sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207905755U true CN207905755U (en) | 2018-09-25 |
Family
ID=63567652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721746714.2U Expired - Fee Related CN207905755U (en) | 2017-12-14 | 2017-12-14 | A kind of oil well head sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207905755U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115637946A (en) * | 2022-12-23 | 2023-01-24 | 大庆市华禹石油机械制造有限公司 | Petroleum wellhead sealing device |
-
2017
- 2017-12-14 CN CN201721746714.2U patent/CN207905755U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115637946A (en) * | 2022-12-23 | 2023-01-24 | 大庆市华禹石油机械制造有限公司 | Petroleum wellhead sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180925 Termination date: 20181214 |