CN206071845U - A kind of Anti-sway wear-pump oil pump - Google Patents
A kind of Anti-sway wear-pump oil pump Download PDFInfo
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- CN206071845U CN206071845U CN201621032696.7U CN201621032696U CN206071845U CN 206071845 U CN206071845 U CN 206071845U CN 201621032696 U CN201621032696 U CN 201621032696U CN 206071845 U CN206071845 U CN 206071845U
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Abstract
The utility model discloses a kind of Anti-sway wear-pump oil pump, belongs to well recovery field.The oil well pump includes pump barrel, upper plug, lower pump barrel, lower plunger, travelling valve, eccentrically arranged valve, weighted lever.Valve cover is provided with the top of upper plug, upper inner wall is positioned inwardly in a radial direction a circle valve seat, and eccentrically arranged valve is located at the edge of upper pump barrel bottom surface.Travelling valve is located in the space that valve seat top surface is surrounded with upper plug inner chamber, and sucker rod is connected at the top of valve cover, and bottom and lower plunger, the weighted lever of upper plug are sequentially connected with, and the diameter of lower plunger is less than the diameter of upper plug.Upper pump barrel is sequentially connected with lower pump barrel, and upper pump barrel is sleeved on the outer wall of upper plug, and top is connected to top oil pipe, lower pump barrel is sleeved on the outer wall of lower plunger, bottom is connected to bottom oil pipe, and the length of lower pump barrel is less than lower plunger, so that the bottom of lower plunger is located in the inner chamber of bottom oil pipe.The oil well pump is avoided that the bending of sucker rod and its eccentric wear between oil pipe.
Description
Technical field
This utility model is related to well recovery field, more particularly to a kind of Anti-sway wear-pump oil pump.
Background technology
Viscous crude is the one kind in crude oil, due to its asphalitine and gum level is higher, viscosity is larger, therefore flow resistance compared with
Greatly, exploit difficult.For the ease of the exploitation of viscous crude, can increase between the upper plug of hydraulic feedback oil and lower plunger partially
Valve is put, viscous crude is entered in pump barrel from eccentrically arranged valve, i.e., from the side of pump barrel rather than the bottom of pump barrel enters pump barrel, so as to pass through
The volume that viscous crude is disposably entered in pump barrel is reduced, is reduced the resistance between the plunger and pump barrel of oil well pump, is improved oil well pump
Oil recovery efficiency.But during thickened oil recovery, as sucker rod is connected with plunger, when sucker rod drives plunger to move downward
When, the movement velocity of sucker rod is very fast, and plunger movement velocity in the presence of viscous crude resistance is slower, the difference of the two motion
Step, makes sucker rod be easily bent and produce between oil pipe eccentric wear, makes the oil well pump cannot normal work.Therefore it provides a kind of energy
Sucker rod is enough made to be very necessary with the oil well pump that plunger is synchronized with the movement.
Prior art provides a kind of biasing valve type hydraulic feedback oil, and which passes through several are set with sucker rod helps
Positive device, makes the radial distance between sucker rod and tube inner wall keep equal, it is to avoid the eccentric wear phenomenon of sucker rod and oil pipe side wall.
By increasing some sections of weighted levers between plunger and sucker rod, plunger is quickly depressed using the weight of weighted lever, reduced thick
The oil obstruction descending to plunger, improves the concordance of sucker rod and plunger motion, prevents bending and the eccentric wear of sucker rod.
Designer has found that prior art at least has following technical problem：
The biasing valve type hydraulic feedback oil that prior art is provided, the installation accuracy requirement to weighted lever are higher, if
Rig up error, can cause the eccentric wear addition polymerization of sucker rod and oil pipe on the contrary.And, the anti-bending and eccentric abrasion prevention effect of weighted lever is not
It is good.
Utility model content
This utility model embodiment technical problem to be solved is, there is provided one kind can effectively prevent sucker rod curved
The Anti-sway wear-pump oil pump of bent and eccentric wear, concrete technical scheme are as follows：
This utility model embodiment provides a kind of Anti-sway wear-pump oil pump, including upper pump barrel, upper plug, lower pump barrel, lower prop
Plug, travelling valve, eccentrically arranged valve, weighted lever.Valve cover is provided with the top of the upper plug, is provided with the valve cover multiple
Oil outlet.The upper inner wall of the upper plug is positioned inwardly in a radial direction a circle valve seat, for supporting the travelling valve.
The eccentrically arranged valve includes：Valve bonnet and the valve ball being arranged in the valve bonnet inner chamber, are provided with oil-out, bottom at the top of the valve bonnet
It is provided with oil-in.The valve bonnet is fixed on the edge of the upper pump barrel bottom surface.
In the space that the travelling valve is surrounded positioned at inner chamber at the top of the valve seat with the upper plug, the valve cover
Top be connected to sucker rod, the bottom of the upper plug is sequentially connected with the lower plunger, the weighted lever, and the lower prop
Diameter of the diameter of plug less than the upper plug.The upper pump barrel is sequentially connected with the lower pump barrel, and the upper pump barrel suit
On the outer wall of the upper plug, end sealing is connected to top oil pipe, be provided with the bottom surface of the upper pump barrel with it is described go out
What hydraulic fluid port was connected enters oil hole.The lower pump barrel is sleeved on the outer wall of the lower plunger, and bottom end seal is connected to bottom oil
Pipe, the length of the lower pump barrel are less than the lower plunger, and make the bottom of the lower plunger positioned at the inner chamber of the bottom oil pipe
In.
Specifically, preferably, the lower plunger is coaxially disposed with the upper plug.
Specifically, preferably, the weighted lever is without box cupling weighted lever.
Specifically, preferably, the Anti-sway wear-pump oil pump includes multiple weighted levers, multiple weighted levers are sequentially
Connection.
Specifically, preferably, female thread is provided with the lower end inner wall of the weighted lever, be provided with the outer wall of upper end with
The external screw thread that the female thread is engaged, so that multiple weighted levers are sequentially threadedly coupled.
Specifically, preferably, the lower end inner wall of the lower plunger is provided with the female thread, the lower plunger with it is described
Weighted lever is threadedly coupled.
Specifically, preferably, the Anti-sway wear-pump oil pump also include screen casing and plug, the screen casing and the plug by
Up to it is sequentially arranged down in the bottom of the bottom oil pipe, for protecting the bottom oil pipe and the weighted lever.
Specifically, preferably, the lower plunger is solid cylinder, the external diameter of the lower plunger is than the weighted lever
The big 3-4mm of external diameter.
The beneficial effect brought of technical scheme that this utility model embodiment is provided is：
The Anti-sway wear-pump oil pump that this utility model embodiment is provided, by upper plug is arranged in upper pump barrel, by lower prop
Plug is arranged in lower pump barrel, and arranges eccentrically arranged valve in the bottom of upper plug, makes viscous crude that the inner chamber of upper plug is entered through eccentrically arranged valve
In, the volume that viscous crude is disposably entered in upper plug is reduced, so as to reduce resistance when viscous crude is moved in upper plug inner chamber,
Improve the oil recovery efficiency of oil well pump.By the bottom that weighted lever is arranged on lower plunger, change what weighted lever exerted a force to plunger
Application point, is pulling force to lower plunger to the pressure change of upper plug by weighted lever in prior art.When upper plug and lower plunger
When moving downward, upper plug and lower plunger sharp downward movement are pulled by the gravity of weighted lever, so that upper plug and lower prop
Plug is consistent with the movement velocity of sucker rod, it is to avoid the bending of sucker rod and eccentric wear.Simultaneously as weighted lever is located at bottom oil pipe
In inner chamber, and in the oil pipe of bottom, do not have viscous crude turnover, thus weighted lever itself can't by the resistance from viscous crude, so as to
The aggravating effects of weighted lever are optimized, the oil recovery efficiency of oil well pump is improve, the service life of sucker rod is extended.It can be seen that, this
The Anti-sway wear-pump oil pump that utility model embodiment is provided, can be prevented effectively from bending and the eccentric wear of sucker rod, improve oil recovery efficiency,
And it is easy to use, it is suitable to large-scale promotion application.
Description of the drawings
For the technical scheme being illustrated more clearly that in this utility model embodiment, below will be to needed for embodiment description
Accompanying drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some realities of the present utility model
Example is applied, for those of ordinary skill in the art, on the premise of not paying creative work, can be with according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is the structural representation of the Anti-sway wear-pump oil pump that this utility model embodiment is provided.
Reference is represented respectively：
Pump barrel on 1,
2 upper plugs,
201 valve covers,
202 valve seats,
3 times pump barrels,
4 lower plungers,
5 travelling valves,
6 eccentrically arranged valves,
601 valve bonnets,
602 valve balls,
7 weighted levers,
8 top oil pipes,
9 bottom oil pipes,
10 sucker rods,
11 screen casings,
12 plugs,
13 sleeve pipes.
Specific embodiment
To make the purpose of this utility model, technical scheme and advantage clearer, below will be to this utility model embodiment party
Formula is described in further detail.
This utility model embodiment provides a kind of Anti-sway wear-pump oil pump, and as shown in Figure 1, the Anti-sway wear-pump oil pump includes
Upper pump barrel 1, upper plug 2, lower pump barrel 3, lower plunger 4, travelling valve 5, eccentrically arranged valve 6, weighted lever 7.Specifically, the top of upper plug 2
Portion is provided with valve cover 201, and multiple oil outlets are provided with valve cover 201.The upper inner wall of upper plug 2 is set radially inward
A circle valve seat 202 is equipped with, for supporting travelling valve 5.Eccentrically arranged valve 6 includes：Valve bonnet 601 and it is arranged in 601 inner chamber of valve bonnet
Valve ball 602, oil-out is provided with the top of valve bonnet 601, bottom is provided with oil-in, and valve bonnet 601 is fixed on 1 bottom surface of pump barrel
Edge.
Travelling valve 5 is located in the space that 202 top surface of valve seat is surrounded with 2 top inner chamber of upper plug, the top of valve cover 201
Portion is connected to sucker rod 10, and bottom and lower plunger 4, the weighted lever 7 of upper plug 2 are sequentially connected with, and the diameter of lower plunger 4 is less than upper
The diameter of plunger 2.Upper pump barrel 1 is sequentially connected with lower pump barrel 3, and upper pump barrel 1 is sleeved on the outer wall of upper plug 2, end sealing
Be connected to top oil pipe 8, be provided with the bottom surface of upper pump barrel 1 be connected with oil-out enter oil hole.Lower pump barrel 3 is sleeved on down
On the outer wall of plunger 4, bottom end seal is connected to bottom oil pipe 9, and the length of lower pump barrel 3 is less than lower plunger 4, so that lower plunger 4
Bottom is located in the inner chamber of bottom oil pipe 9.
The Anti-sway wear-pump oil pump that this utility model embodiment is provided, by upper plug 2 is arranged in upper pump barrel 1, by under
Plunger 4 is arranged in lower pump barrel 3, and arranges eccentrically arranged valve 6 in the bottom of upper pump barrel 1, makes viscous crude enter upper plug through eccentrically arranged valve 6
In 2 inner chamber, the volume that viscous crude is disposably entered in upper plug 2 is reduced, is moved in 2 inner chamber of upper plug so as to reduce viscous crude
When resistance, improve oil well pump oil recovery efficiency.By the bottom that weighted lever 7 is arranged on lower plunger 4, weighted lever 7 is changed
Application point to plunger force, is the pulling force to lower plunger 4 to the pressure change of upper plug 2 by weighted lever in prior art 7.When
When upper plug 2 and lower plunger 4 are moved downward, 3 sharp downward movement of upper plug 2 and lower plunger is pulled by the gravity of weighted lever 7,
So that plunger is consistent with the movement velocity of sucker rod 10, it is to avoid the bending of sucker rod 10 and eccentric wear.Simultaneously as weighted lever 7
In the inner chamber of bottom oil pipe 9, and in bottom oil pipe 9, do not have viscous crude turnover, therefore weighted lever 7 itself can't be arrived
From the resistance of viscous crude, so as to optimize the aggravating effects of weighted lever 7, the oil recovery efficiency of oil well pump is improve, sucker rod is extended
10 service life.It can be seen that, the Anti-sway wear-pump oil pump that this utility model embodiment is provided can be prevented effectively from the curved of sucker rod 10
Bent and eccentric wear, improves oil recovery efficiency, and easy to use, is suitable to large-scale promotion application.
Specifically, upper plug 2 is the main oil recovery part of Anti-sway wear-pump oil pump, and which is a hollow cylinder, so that
An inner chamber is formed in upper plug 2, for the temporary transient storage of crude oil.2 upper inner wall of upper plug is positioned inwardly in a radial direction one
The inner chamber of upper plug 2 is divided into upper and lower by valve seat 202 by circle valve seat 202, and upper lumen is less, for accommodating
Travelling valve 5, lower lumen is larger, for storing crude oil.The middle part of valve seat 202 is provided with a manhole, the circle
The diameter of through hole is less than travelling valve 5, it is ensured that travelling valve 5 will not drop down from valve seat 202, enable valve seat 202
Enough support is provided for travelling valve 5, and form the first check valve with travelling valve 5.When the pressure of 5 bottom of travelling valve is more than upper
During portion, when travelling valve 5 is moved upwards, the first check valve is opened, and a gap is formed between valve seat 202 and travelling valve 5,
So that viscous crude can flow into the upper lumen of upper plug 2 from the bottom to top.And when the pressure of 5 bottom of travelling valve is less than top,
Under the stop of valve seat 202, travelling valve 5 cannot be moved downward, and be located exactly in the manhole of valve seat 202, this
When the first closed check valve, viscous crude cannot flow through the first check valve.In order to be defined to the space of travelling valve 5, and
Viscous crude is flowed in oil pipe by upper plug 2, the top of upper plug 2 is provided with valve cover 201, arrange on valve cover 201
There are multiple oil outlets, for the circulation of viscous crude.The bottom of upper pump barrel 1 is additionally provided with eccentrically arranged valve 6, valve bonnet in eccentrically arranged valve 6 601 with
The effect of valve cover 201 is similar, and valve ball 602 is similar to the effect of travelling valve 5, so that viscous crude can be flowed by eccentrically arranged valve 6 is unidirectional
Enter upper pump barrel 1, realize crude oil production.Imitate to optimize the control of travelling valve 5 and valve seat 202 to viscous crude one-way flow
Really, the bottom of 2 inner chamber of upper plug is also equipped with a circle valve seat 202 and a travelling valve 5, forms the second check valve, and second
Check valve is synchronized with the movement with eccentrically arranged valve 6, to improve the oil recovery efficiency of upper plug 2.
Specifically, as eccentrically arranged valve 6 is located on the bottom surface of upper pump barrel 1, in order to ensure that viscous crude can be flowed in eccentrically arranged valve 6,
Should stagger with the position of eccentrically arranged valve 6 position of lower plunger 4, it is to avoid flowing of the lower plunger 4 to viscous crude causes to hinder.Lower plunger 4 is excellent
Elect as and be coaxially disposed with upper plug 2, drive in order to upper plug 2 that lower plunger 4 is synchronous to move up and down, it is ensured that viscous crude is smoothly opened
Adopt.Meanwhile, the length of upper pump barrel 1 is more than upper plug 2, to realize crude oil by up and down motion of the upper plug 2 in upper pump barrel 1
Exploitation.And lower plunger 4 is a cylinder, its role is to the volume (i.e. the discharge capacity of viscous crude) entered in upper plug 2 to viscous crude
It is adjusted, makes the discharge capacity of viscous crude be equal to the difference of 2 discharge capacity of upper plug and 4 discharge capacity of lower plunger.Therefore, the length of lower plunger 4 is more than
Lower pump barrel 3, lower pump barrel 3 are connected with the middle part of 1 bottom surface of upper pump barrel so that lower plunger 4 during up and down motion substantially
All the time run through lower pump barrel 3, to avoid the viscous crude in upper pump barrel 1 from flowing in lower pump barrel 3, the inner chamber of lower pump barrel 3 is made all the time in close
Envelope state, it is to avoid the leakage and loss of crude oil, improves the work efficiency of oil well pump.
Specifically, in order to increase the weight of lower plunger 4, weighted lever 7 is provided with 4 bottom of lower plunger, by weighted lever 7
Gravity pull plunger sharp downward movement so that plunger is consistent with the movement velocity of sucker rod 10, it is to avoid sucker rod 10 it is curved
Bent and eccentric wear.Weighted lever 7 is located in the inner chamber of bottom oil pipe 9, and bottom oil pipe 9 provides space for the up and down motion of weighted lever 7,
Not viscous crude turnover in bottom oil pipe 9 simultaneously, therefore weighted lever 7 itself can't be by the resistance from viscous crude, so as to excellent
Change the aggravating effects of weighted lever 7, improve the oil recovery efficiency of oil well pump, extend the service life of sucker rod 10.Weighted lever 7
Preferably without box cupling weighted lever 7, in order to the connection of weighted lever 7 and lower plunger 4, it is to avoid the box cupling on weighted lever 7 affects lower prop
The up and down motion of plug 4.
Specifically, in order to improve the aggravating effects of weighted lever 7, Anti-sway wear-pump oil pump can include multiple weighted levers 7, and many
Individual weighted lever 7 is sequentially connected with, further to increase pulling force of the weighted lever 7 to lower plunger 4, it is ensured that upper plug 2 and lower plunger 4 with take out
Beam hanger 10 is synchronized with the movement.For the ease of the connection between weighted lever 7, the lower end inner wall of weighted lever 7 is provided with female thread, upper end
Outer wall is provided with the external screw thread being engaged with female thread so that multiple weighted levers 7 are sequentially threadedly coupled, be easy to operator according to
The concrete condition of oil recovery process suitably increases and decreases the number of weighted lever 7, the degree that increases of lower plunger 4 is reasonably adjusted, is made
Upper plug 2 and lower plunger 4 are consistent with the movement velocity of sucker rod 10, so as to be prevented effectively from bending and the eccentric wear of sucker rod 10.
Specifically, the female thread being engaged with weighted lever 7 is also equipped with the lower end inner wall of lower plunger 4, so that lower plunger 4
It is threadedly coupled with weighted lever 7, is easy to the installation and removal of weighted lever 7.
Specifically, the Anti-sway wear-pump oil pump that this utility model embodiment is provided also includes screen casing 11 and plug 12, screen casing 11
From top to bottom it is sequentially arranged in the bottom of bottom oil pipe 9 with plug 12.Although viscous crude is no longer entered in upper pump barrel 1 from screen casing 11,
But screen casing 11 and plug 12 still can provide protection to bottom oil pipe 9 and weighted lever 7, it is to avoid the sandstone of oil well bottom is damaged
Bad weighted lever 7.
Specifically, for the ease of realizing being synchronized with the movement for lower plunger 4 and sucker rod 10, lower plunger 4 is set to solid cylinder
Body.As lower plunger 4 is in oil recovery process and there is no need for storing viscous crude, therefore lower plunger 4 could be arranged to solid construction,
And solid construction contributes to increasing the weight of lower plunger 4, facilitates implementation being synchronized with the movement for lower plunger 4 and sucker rod 10.Meanwhile, it is
Up and down motion of the weighted lever 7 to lower plunger 4 is avoided to cause to hinder, the external diameter 3-4mm bigger than the external diameter of weighted lever 7 of lower plunger 4,
So that the motion of lower plunger 4 keeps smooth.
Specifically, the application for the ease of Anti-sway wear-pump oil pump in inclined shaft, can be set with several on sucker rod 10
Centralizer, centralizer is circumferentially outer to be provided with multiple wiper blocks, makes sucker rod 10 and inclined shaft middle and upper part oil pipe 8 by wiper block
Radial distance between inwall keeps equal, further avoids the eccentric wear phenomenon of sucker rod 10 and tube inner wall, extends sucker rod
10 service life.
Specifically, the Anti-sway wear-pump oil pump that this utility model embodiment is provided, when in use, by upper pump barrel 1 and top oil
Pipe 8 connects, and lower pump barrel 3 is connected with bottom oil pipe 9, and oil pipe and Anti-sway wear-pump oil pump are respectively positioned in sleeve pipe 13.By oil pumping
Bar 10 drives upper plug 2 to move upwards, and the first check valve is closed by reduced pressure in the lower lumen of upper plug 2, travelling valve 5
Close, and eccentrically arranged valve 6 and the second check valve are opened in the presence of borehole pressure, viscous crude is entered and temporarily stored by eccentrically arranged valve 6
In the lower lumen of upper plug 2.When sucker rod 10 reaches upper dead center position, feed liquor process terminates, and sucker rod 10 is in upper plug
2nd, synchronously move downward in the presence of lower plunger 4 and weighted lever 7, the pressure increase in 2 lower lumen of upper plug, first is unidirectional
Valve is opened, and eccentrically arranged valve 6 and the second check valve are closed, and viscous crude flows into the upper space of upper plug 2 along the first check valve, and
Oil outlet along valve cover 201 is flowed in top oil pipe 8, completes a cycle of operation.By multiple cycle of operation, viscous crude is lifted
Rise at the well head of oil well, realize the exploitation and conveying of viscous crude.As sucker rod 10 can be synchronous with upper plug 2 and lower plunger 4
Motion, so as to avoid bending and its eccentric wear between oil pipe of sucker rod 10, extends the service life of sucker rod 10.
Preferred embodiment of the present utility model is the foregoing is only, not to limit protection domain of the present utility model,
It is all it is of the present utility model spirit and principle within, any modification, equivalent substitution and improvements made etc. should be included in this reality
Within new protection domain.
Claims (8)
1. a kind of Anti-sway wear-pump oil pump, including upper pump barrel (1), upper plug (2), lower pump barrel (3), lower plunger (4), travelling valve
(5), eccentrically arranged valve (6), it is characterised in that the Anti-sway wear-pump oil pump also includes weighted lever (7)；
Valve cover (201) is provided with the top of the upper plug (2), on the valve cover (201), multiple oil outlets is provided with；Institute
State upper plug (2) upper inner wall it is positioned inwardly in a radial direction have a circle valve seat (202), for supporting the travelling valve
(5)；
The eccentrically arranged valve (6) includes：Valve bonnet (601) and the valve ball (602) being arranged in the valve bonnet (601) inner chamber, the valve
Oil-out is provided with the top of cover (601), bottom is provided with oil-in；The valve bonnet (601) is fixed on upper pump barrel (1) bottom surface
Edge；
In the space that the travelling valve (5) is surrounded positioned at inner chamber at the top of the valve seat (202) with the upper plug (2), institute
State and at the top of valve cover (201), be connected to sucker rod (10), the bottom of the upper plug (2) and the lower plunger (4), it is described plus
Weight bar (7) is sequentially connected with, and the diameter of the lower plunger (4) is less than the diameter of the upper plug (2)；The upper pump barrel (1) with
The lower pump barrel (3) is sequentially connected with, and the upper pump barrel (1) is sleeved on the outer wall of the upper plug (2), end sealing connection
To top oil pipe (8), it is provided with the bottom surface of the upper pump barrel (1) and enters oil hole with the oil-out is connected；Under described
Pump barrel (3) is sleeved on the outer wall of the lower plunger (4), and bottom end seal is connected to bottom oil pipe (9), the lower pump barrel (3)
Length is less than the lower plunger (4), and the bottom of the lower plunger (4) is located in the inner chamber of the bottom oil pipe (9).
2. Anti-sway wear-pump oil pump according to claim 1, it is characterised in that the lower plunger (4) and the upper plug (2)
It is coaxially disposed.
3. Anti-sway wear-pump oil pump according to claim 1, it is characterised in that the weighted lever (7) is without box cupling weighted lever.
4. Anti-sway wear-pump oil pump according to claim 3, it is characterised in that the Anti-sway wear-pump oil pump includes multiple described
Weighted lever (7), multiple weighted levers (7) are sequentially connected with.
5. Anti-sway wear-pump oil pump according to claim 4, it is characterised in that set on the lower end inner wall of the weighted lever (7)
Female thread is equipped with, the external screw thread being engaged with the female thread on the outer wall of upper end, is provided with, so that multiple weighted levers (7) are suitable
Secondary threaded connection.
6. Anti-sway wear-pump oil pump according to claim 5, it is characterised in that the lower end inner wall of the lower plunger (4) is arranged
There is the female thread, the lower plunger (4) is threadedly coupled with the weighted lever (7).
7. Anti-sway wear-pump oil pump according to claim 1, it is characterised in that the Anti-sway wear-pump oil pump also includes screen casing
(11) and plug (12), the screen casing (11) and the plug (12) are from top to bottom sequentially arranged in the bottom oil pipe (9)
Bottom, for protecting the bottom oil pipe (9) and the weighted lever (7).
8. Anti-sway wear-pump oil pump according to claim 1, it is characterised in that the lower plunger (4) is solid cylinder, institute
State the external diameter 3-4mm bigger than the external diameter of the weighted lever (7) of lower plunger (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621032696.7U CN206071845U (en) | 2016-08-31 | 2016-08-31 | A kind of Anti-sway wear-pump oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621032696.7U CN206071845U (en) | 2016-08-31 | 2016-08-31 | A kind of Anti-sway wear-pump oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206071845U true CN206071845U (en) | 2017-04-05 |
Family
ID=58436848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621032696.7U Active CN206071845U (en) | 2016-08-31 | 2016-08-31 | A kind of Anti-sway wear-pump oil pump |
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| Country | Link |
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| CN (1) | CN206071845U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106869858A (en) * | 2017-04-25 | 2017-06-20 | 天津市景宝中泰科技有限公司 | A kind of oil well self-balancing multifunctional foot valve device and application method |
| CN106996274A (en) * | 2017-05-05 | 2017-08-01 | 西南石油大学 | A kind of righting structure of anti-sucker rod pumping pump plunger eccentric wear |
| CN108361182A (en) * | 2018-01-08 | 2018-08-03 | 诸暨市超前泵业科技有限公司 | Underground reciprocating formula rodless pump |
| CN110345054A (en) * | 2019-08-15 | 2019-10-18 | 雪曼圣杰科技有限公司 | The reciprocal liquid raising device of multi-chamber |
| CN112483370A (en) * | 2020-11-27 | 2021-03-12 | 邹淑君 | Down-stroke adjustable pull-down plunger pump |
| CN116220632A (en) * | 2023-04-11 | 2023-06-06 | 大庆瑞福佳石油科技有限公司 | Oil well eccentric wear prevention stretcher |
-
2016
- 2016-08-31 CN CN201621032696.7U patent/CN206071845U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106869858A (en) * | 2017-04-25 | 2017-06-20 | 天津市景宝中泰科技有限公司 | A kind of oil well self-balancing multifunctional foot valve device and application method |
| CN106996274A (en) * | 2017-05-05 | 2017-08-01 | 西南石油大学 | A kind of righting structure of anti-sucker rod pumping pump plunger eccentric wear |
| CN108361182A (en) * | 2018-01-08 | 2018-08-03 | 诸暨市超前泵业科技有限公司 | Underground reciprocating formula rodless pump |
| CN108361182B (en) * | 2018-01-08 | 2023-08-15 | 诸暨市超前泵业科技有限公司 | Reciprocating rodless oil pump in pit |
| CN110345054A (en) * | 2019-08-15 | 2019-10-18 | 雪曼圣杰科技有限公司 | The reciprocal liquid raising device of multi-chamber |
| CN112483370A (en) * | 2020-11-27 | 2021-03-12 | 邹淑君 | Down-stroke adjustable pull-down plunger pump |
| CN116220632A (en) * | 2023-04-11 | 2023-06-06 | 大庆瑞福佳石油科技有限公司 | Oil well eccentric wear prevention stretcher |
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