CN206915656U - The jacking oil pump of anti-oil return - Google Patents
The jacking oil pump of anti-oil return Download PDFInfo
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- CN206915656U CN206915656U CN201720604438.XU CN201720604438U CN206915656U CN 206915656 U CN206915656 U CN 206915656U CN 201720604438 U CN201720604438 U CN 201720604438U CN 206915656 U CN206915656 U CN 206915656U
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Abstract
The jacking oil pump of anti-oil return, the pump core matched including the pump housing, with pump housing inner chamber and the oil cylinder with piston rod assembly, cavity between cylinder cavity and piston is the second oil pocket, second oil pocket is connected by the oil-feed path being arranged on the pump housing with the first oil pocket, the oil inlet end of oil-feed path connects with the through hole of the first oil pocket bottom, the oil outlet end of oil-feed path is divided into two-way, the first via connects with the second oil pocket, second tunnel is extended directly to outside the pump housing, and the oil-control component for controlling oil-feed path to lead to oily speed is inserted in the axially extending bore on the second tunnel；Oil-control component includes spacer pin and steel ball, and spacer pin is inserted in the axially extending bore on the second tunnel, and the two sealing is spirally connected；Steel ball is placed on the second tunnel and the junction of the first via, and steel ball side arc surface is against at the second road bottom through-hole, and steel ball opposite side arc surface is against the bottom of spacer pin.The beneficial effects of the utility model are：Enter fuel-displaced stabilization, jack rise or fall it is steady, prevent jack stress is excessive from causing oil pump oil return.
Description
Technical field
It the utility model is related to a kind of jacking oil pump of anti-oil return.
Background technology
Existing jacking oil pump, which enters Extraction rate, to be adjusted flexibly, enter it is fuel-displaced quickly result in into fuel-displaced shakiness, so as to
Jack is caused to rise or fall shakiness, especially when jacking up weight, because stress causes greatly very much jacking oil pump oil return, from
And decline jack and cause danger, influence service life.
The content of the invention
The utility model enters Extraction rate for existing jacking oil pump to be adjusted flexibly, and oil-feed quickly results in oil-feed
Unstable, stress excessive the problem of causing jacking oil pump oil return, it is proposed that one kind enters fuel-displaced stabilization, jack rise or fall it is flat
The jacking oil pump of steady anti-oil return.
The jacking oil pump of anti-oil return described in the utility model, including the pump housing, the pump core that is matched with pump housing inner chamber and
Oil cylinder with piston rod assembly, the described pump housing inner chamber of described pump core front end insertion, and sealing is slidably connected therewith, it is described
Pump core front end surface and pump housing inner chamber form the first oil pocket for filling hydraulic oil；The described pump housing and described oil cylinder
It is installed on valve body, the inner chamber of the oil cylinder is axially equipped with piston rod assembly along it, and the piston rod assembly is included for defeated
Going out the piston rod of power and the piston for sealing, the inner of the piston rod inserts cylinder cavity, and by mounted in inner end
Piston be slidably connected with oil cylinder, realize piston rod along the straight reciprocating motion of oil cylinder axial direction, it is characterised in that：The cylinder cavity
Cavity between piston is the second oil pocket, and the second oil pocket passes through the oil-feed path being arranged on the pump housing and first oil pocket
Connection, the oil inlet end of the oil-feed path connect with the through hole of the first oil pocket bottom, and the oil outlet end of oil-feed path is divided into two-way, its
The middle first via is connected with the second oil pocket, and the second tunnel is extended directly to outside the pump housing, insertion use in the axially extending bore on second tunnel
Lead to the oil-control component of oily speed in control oil-feed path；The oil-control component includes being used for the spacer pin and use for limiting logical oily speed
In the steel ball of sealing, the spacer pin is inserted in the axially extending bore on the second tunnel, and the two sealing is spirally connected；The steel ball is placed on
Second tunnel and the junction of the first via, and the side arc surface of steel ball is against at the second road bottom through-hole, the opposite side of steel ball
Arc surface is against the bottom of spacer pin.
The oil-feed path is divided into the first linkage section, the second linkage section as the second tunnel and the as the 3rd tunnel the 3rd
Linkage section, the first linkage section connect as one end of oil inlet end with the first oil pocket, and the other end connects with the inner of the second linkage section,
The outer end of second linkage section is extended to outside the pump housing；3rd linkage section one end connects with the second linkage section, the 3rd linkage section it is another
One end connects with the second oil pocket；The internal diameter of second linkage section is more than the internal diameter of the first linkage section end, and the external diameter of steel ball is big
Internal diameter in the first linkage section end.
The course of work：1st, when pump core moves downward in the presence of external force F1, pump core promotes the hydraulic oil in the first oil pocket
Flowed along oil-feed path direction, because now the first oil pocket hydraulic oil pressure is powerful in the second oil pocket hydraulic oil pressure, the first oil
Chamber hydraulic oil will push up the steel ball for opening sealing function, the first oil pocket hydraulic oil is continued flow forward, until becoming the second oil
Chamber hydraulic oil, under the pressure effect of the second oil pocket hydraulic oil, piston rod assembly moves right, so as to realize that oil pump component is outside
Export power and stroke.
2nd, when external force F1 is cancelled, pump core stop motion, the first oil pocket hydraulic oil stops being changed into the second oil by oil-feed path
Chamber hydraulic oil.Now piston rod assembly can make the oriented left movement trend of piston rod assembly under external force F effects, now the second oil pocket
Interior hydraulic oil pressure is higher than the first oil pocket hydraulic oil pressure, and steel ball can seal oil-feed path, prevent the second oil pocket hydraulic oil from
It is back among the first oil pocket, so as to prevent piston rod assembly from preventing outside weight after being got up by lifting voluntarily to left movement
Landing.So as to realize the stability of oil pump part oil-feed closed-circuit working.
The beneficial effects of the utility model are：Enter fuel-displaced stabilization, jack rise or fall it is steady, prevent jack stress
It is excessive to cause oil pump oil return.
Brief description of the drawings
Fig. 1 is that (a represents the upward direction of motion of valve element to structure chart of the present utility model；B represents valve element and moves downward direction；c
Represent the piston rod direction of motion to the left；D represents piston rod and moves right direction).
Embodiment
The utility model is further illustrated below in conjunction with the accompanying drawings
Referring to the drawings：
1 band described in the utility model of embodiment buffers the jacking oil pump of oil circuit, including the pump housing 1 and pump housing inner chamber
The pump core 2 matched somebody with somebody and the oil cylinder 3 with piston rod assembly 31, the described inner chamber of the pump housing 1 of the described front end of pump core 2 insertion, and with
Sealing be slidably connected, the described front end surface of pump core 2 and the inner chamber of the pump housing 1 form the first oil pocket 21 for filling hydraulic oil；
The described pump housing 2 and described oil cylinder 3 are installed on valve body 4, and the inner chamber of the oil cylinder 3 is axially equipped with piston rod group along it
Part 31, the piston rod assembly 31 include being used for the piston rod 311 for exporting power and the piston 312 for sealing, the piston
Inner insertion oil cylinder 3 inner chamber of bar 311, and be slidably connected by the piston 312 mounted in inner end with oil cylinder, realize piston rod
311 along 3 axial straight reciprocating motion of oil cylinder, and the cavity between the inner chamber of oil cylinder 3 and piston 312 is the second oil pocket 32, and the
Two oil pockets 32 are connected by the oil-feed path 11 being arranged on the pump housing 1 with first oil pocket 21, and the oil-feed path 11 enters
Oily end connects with the through hole of the bottom of the first oil pocket 21, and the oil outlet end of oil-feed path 11 is divided into two-way, the wherein first via and the second oil
Chamber 32 is connected, and the second tunnel is extended directly to outside the pump housing 1, is inserted in the axially extending bore on second tunnel for controlling oil-feed path
Lead to the oil-control component 33 of oily speed；The oil-control component 33 includes being used to limit the spacer pin 331 of logical oily speed and for sealing
Steel ball 332, the spacer pin 331 is inserted in the axially extending bore on the second tunnel, and the two sealing is spirally connected；The steel ball 332 is put
The junction on the second tunnel and the first via is put, and the side arc surface of steel ball 332 is against at the second road bottom through-hole, steel ball
332 opposite side arc surface is against the bottom of spacer pin 331.
The oil-feed path 11 divides the second linkage section 112 and conduct the 3rd for the first linkage section 111, as the second tunnel
3rd linkage section 113 on road, the first linkage section 111 connect as one end of oil inlet end with the first oil pocket 21, the other end and second
The inner connection of linkage section 112, the outer end of the second linkage section 112 is extended to outside the pump housing 1；One end of 3rd linkage section 113 and the
Two linkage sections 112 connect, and the other end of the 3rd linkage section 113 connects with the second oil pocket 32；The internal diameter of second linkage section 112
More than the internal diameter of the end of the first linkage section 111, the external diameter of steel ball 332 is more than the internal diameter of the first linkage section end.
The course of work：1st, when pump core 2 moves downward in the presence of external force F1, pump core 2 promotes the liquid in the first oil pocket 21
Force feed flows along the direction of inlet and outlet of fuel channel 11, because now the hydraulic oil pressure of the first oil pocket 21 is powerful in the hydraulic oil pressure of the second oil pocket 32
By force, the hydraulic oil of the first oil pocket 21 will push up the steel ball 332 for opening sealing function, make the hydraulic oil of the first oil pocket 21 continue to flow forward
Dynamic, until becoming the hydraulic oil of the second oil pocket 32, under the pressure effect of the hydraulic oil of the second oil pocket 32, piston rod assembly 31 is transported to the right
It is dynamic, so as to realize that oil pump outwards exports power and stroke.
2nd, when external force F1 is cancelled, the stop motion of pump core 2, the hydraulic oil of the first oil pocket 21 stops being changed into the by oil-feed path 11
Two oil pocket hydraulic oil.Now piston rod assembly 31 can make the oriented left movement trend of piston rod assembly 31 under external force F effects, now
Hydraulic oil pressure in second oil pocket 32 is higher than the hydraulic oil pressure of the first oil pocket 21, and steel ball 332 can seal oil-feed path 11, makes
The hydraulic oil of two oil pocket 32 can not be back among the first oil pocket 21, so as to prevent piston rod assembly 31 from preventing outside to left movement
Weight voluntarily lands after being got up by lifting.So as to realize the stability of oil pump oil-feed closed-circuit working.
Content described in this specification embodiment is only enumerating to the way of realization of utility model design, and this practicality is new
The protection domain of type is not construed as being only limitted to the concrete form that embodiment is stated, the scope of protection of the utility model is also wrapped
Include those skilled in the art according to the utility model design it is conceivable that equivalent technologies mean.
Claims (2)
1. the jacking oil pump of anti-oil return, including the pump housing, the pump core that is matched with pump housing inner chamber and the oil with piston rod assembly
Cylinder, the described pump housing inner chamber of described pump core front end insertion, and sealing is slidably connected therewith, described pump core front end surface and pump
Intracoelomic cavity forms the first oil pocket for filling hydraulic oil；The described pump housing and described oil cylinder are installed on valve body, institute
The inner chamber for stating oil cylinder is axially equipped with piston rod assembly along it, and the piston rod assembly includes being used for the piston rod and use for exporting power
In the piston of sealing, the inner insertion cylinder cavity of the piston rod, and slided and connected by the piston mounted in inner end and oil cylinder
Connect, realize piston rod along the straight reciprocating motion of oil cylinder axial direction, it is characterised in that：Cavity between the cylinder cavity and piston is
Second oil pocket, and the second oil pocket is connected by the fuel-displaced path that enters being arranged on the pump housing with first oil pocket, it is described enter it is fuel-displaced
The oil inlet end of path connects with the through hole of the first oil pocket bottom, and the oil outlet end for entering fuel-displaced path is divided into two-way, wherein the first via with
Second oil pocket is connected, and the second tunnel is extended directly to outside the pump housing, is inserted in the axially extending bore on second tunnel for controlling disengaging
Oily path leads to the oil-control component of oily speed；The oil-control component includes being used to limit the spacer pin of logical oily speed and for sealing
Steel ball, the spacer pin is inserted in the axially extending bore on the second tunnel, and the two sealing is spirally connected；The steel ball be placed on the second tunnel with
The junction of the first via, and the side arc surface of steel ball is against at the second road bottom through-hole, and the opposite side arc surface of steel ball supports
In the bottom of spacer pin.
2. the jacking oil pump of anti-oil return as claimed in claim 1, it is characterised in that：It is described enter fuel-displaced path be divided into the first company
Section, the second linkage section as the second tunnel and the 3rd linkage section as the 3rd tunnel are connect, the first linkage section is as oil inlet end
One end is connected with the first oil pocket, and the other end is connected with the inner of the second linkage section, and the outer end of the second linkage section is extended to outside the pump housing
Portion；3rd linkage section one end connects with the second linkage section, and the other end of the 3rd linkage section connects with the second oil pocket；Described second connects
The internal diameter for connecing section is more than the internal diameter of the first linkage section end, and the external diameter of steel ball is more than the internal diameter of the first linkage section end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720604438.XU CN206915656U (en) | 2017-05-26 | 2017-05-26 | The jacking oil pump of anti-oil return |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720604438.XU CN206915656U (en) | 2017-05-26 | 2017-05-26 | The jacking oil pump of anti-oil return |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206915656U true CN206915656U (en) | 2018-01-23 |
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ID=61307994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720604438.XU Active CN206915656U (en) | 2017-05-26 | 2017-05-26 | The jacking oil pump of anti-oil return |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206915656U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108892067A (en) * | 2018-07-25 | 2018-11-27 | 张凯 | A kind of novel pneumatic hydraulic jack |
-
2017
- 2017-05-26 CN CN201720604438.XU patent/CN206915656U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108892067A (en) * | 2018-07-25 | 2018-11-27 | 张凯 | A kind of novel pneumatic hydraulic jack |
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