CN105090005B - Fluid pump and oil pumping device composed of fluid pump - Google Patents
Fluid pump and oil pumping device composed of fluid pump Download PDFInfo
- Publication number
- CN105090005B CN105090005B CN201410179369.3A CN201410179369A CN105090005B CN 105090005 B CN105090005 B CN 105090005B CN 201410179369 A CN201410179369 A CN 201410179369A CN 105090005 B CN105090005 B CN 105090005B
- Authority
- CN
- China
- Prior art keywords
- pump
- hole
- core
- pin
- pin hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 34
- 238000005086 pumping Methods 0.000 title claims description 10
- 239000007788 liquid Substances 0.000 claims description 19
- 238000007789 sealing Methods 0.000 claims description 13
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 16
- 239000000203 mixture Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000001050 lubricating effect Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 210000001179 synovial fluid Anatomy 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Abstract
The present invention discloses a fluid pump. The fluid pump comprises a pump body, a pump needle, an internal pump core and an external pump core. The pump body is provided with a pump cavity, a flow inlet through hole and a flow outlet through hole. An inner needle hole and an overflow hole are formed in the internal pump core, an outer needle hole is formed in the external pump core, one end of the inner needle hole is communicated with the outer needle hole, and the other end of the inner needle hole is communicated with the flow outlet through hole. The pump needle is arranged in a whole formed by the external pump core and the internal pump core in a sliding mode through the outer needle hole and the inner needle hole, the pump needle penetrates through the outer needle hole and stretches into the inner needle hole, and the sliding direction of the pump needle is parallel to a first direction. The fluid pump has the advantages that the needle holes matched with the pump needle are formed in the internal pump core and the external pump core respectively, the length of respective parts is reduced, the size of the needle holes can be better guaranteed in a processing technique, and different processing techniques can be adopted in different portions of the needle holes through the split type pump cores, so that matching accuracy is guaranteed, and meanwhile service life is taken into consideration.
Description
Technical field
The present invention relates to the oil pumping device of a kind of fluid pump and its composition, and in particular to one kind provides profit for instruments such as chain saws
The oil pumping device of the fluid pump and its composition of synovial fluid.
Background technology
In powerful power tool field, the instrument such as chain saw need operationally to provide lubricating fluid for which so that
Its corresponding part smooth can be operated.In general, lubricating fluid often adopts lubricating oil, lubricating oil to be often stored in peace
It is mounted in the oil tank on instrument, when being operated, pump oil is realized under the actuator drives of instrument by an oil pumping device, will
Grease pump is realized lubricating to flowline.
Existing oil pumping device, often using structure in the form of piston, compares closing at one as piston using a pump pin
Within the chamber move back and forth, realize pump oil using the change of pressure.During actual realization, existing pump oil structure due to
Pump pin can not remain preferable dimensional fits with chamber, so often there is oil leak and not fuel-displaced problem.
The content of the invention
To solve the deficiencies in the prior art, it is an object of the invention to provide one kind from the novel reliable fluid pump of structure and
The oil pumping device of its composition.
In order to realize above-mentioned target, the present invention is adopted the following technical scheme that：
A kind of fluid pump, including：The pump housing, pump pin, the pump housing are provided with：What pump chamber was connected with pump chamber enters opening and goes out circulation
Hole, pump chamber one end are open, and the other end is provided with out opening, enters opening and is arranged between pump chamber two ends；Fluid pump also includes：
External pump core, the built-in pump core for connecting or block into opening and go out opening when pump pin can be made to move back and forth wherein, it is external
Pump core is provided with outer pin hole, and built-in pump core is provided with interior pin hole and is arranged at interior pin hole hole wall and connects interior pin hole and enter opening
Flowing hole, interior pin hole one end is connected with outer pin hole, the other end is connected with opening is gone out；Pump pin is slided by outer pin hole, interior pin hole
Be arranged in the entirety that external pump core and built-in pump core are constituted, pump pin passes through outer pin hole and stretches to interior pin hole.
Further, interior pin hole is revolution body opening, and which includes：Accommodating section and trip segment, the aperture of accommodating section are more than stroke
Section and the aperture for going out opening, accommodating section are positioned close to out the side of opening.
Further, interior pin hole is provided with accommodating section：Check valve assembly, check valve assembly include：Interior elastic component and valve
Ball, the pump chamber inwall of orifice edge on the inside of opening, other end bias valve ball are withstood out in interior elastic component one end makes which withstand on stroke
Section is located at pin hole in the end blocking of the valve ball side.
Further, pump pin is the hole wall close contact of revolving body, pump pin and trip segment.
Further, parallel to first direction, built-in pump core periphery is provided with a liquid storage groove, liquid storage to the glide direction of pump pin
Groove is corresponding with the position of flowing hole in a first direction.
Further, suit is provided with built-in pump core or/and in external pump core or/and between built-in pump core and external pump core
Sealing ring on pump pin, sealing ring are in close contact with pump pin.
Further, outer pin hole is revolution body opening, and which includes：Suit section and section, is set with the aperture of section more than passing through
The aperture of section, suit section are located near built-in pump core side；Aperture of the external diameter of pump pin less than or equal to section.
Further, built-in pump core is formed with the protuberance for being protruding to suit intrasegmental part near the side of external pump core, close
Seal is arranged between the end face of end face and section of protuberance.
Further, fluid pump also includes：It is fixed on the needle cap of pump pin outer end and applies to make between the pump housing and needle cap
The outer elastic component of their detached biasing forces.
A kind of oil pumping device suitable for chain saw, including：Such as the fluid pump of front introduction.
The invention has benefit that：Make the pin hole coordinated with pump pin（At least by the trip segment and outer pin hole of interior pin hole
Section composition）It is respectively formed in built-in pump core and external pump core so that their respective partial-length shortens, Jin Er
The size of pin hole, and split type pump core can preferably be ensured in processing technique（It is made up of built-in pump core and external pump core
Entirety）Pin hole can be made to ensure the precision for coordinating while taking into account service life using different processing technique in different piece.
Description of the drawings
Fig. 1 is the cross section structure diagram of a preferred embodiment of the fluid pump of the present invention；
Fig. 2 is the exploded perspective view of embodiment illustrated in fig. 1；
Fig. 3 is the cross section structure diagram of embodiment illustrated in fig. 1 middle pump body；
Fig. 4 is the cross section structure diagram of built-in pump core in embodiment illustrated in fig. 1；
Fig. 5 is the cross section structure diagram of external pump core in embodiment illustrated in fig. 1.
Specific embodiment
Make specific introduction to the present invention below in conjunction with the drawings and specific embodiments.
Referring to figs. 1 to shown in Fig. 5, the fluid pump 100 of the present invention includes：It is the pump housing 10, pump pin 20, built-in pump core 40, external
Pump core 30.Wherein, pump pin 20 is slidably connected with built-in pump core 40 and being monolithically fabricated for the composition of external pump core 30, and the direction of slip is put down
Row is in first direction A.
The pump housing 10 is provided with：Pump chamber 11, enter opening 12 and go out opening 13.Pump chamber 11 is formed at 10 inner chamber of the pump housing for one
Room, for open for installing 20 grade part of pump pin, its other end is provided with and in communication goes out opening 13 its one end.Enter opening
12 stage casings for being arranged on pump chamber 11, that is, the position being arranged between 11 two ends of pump chamber.
Used as a kind of preferred version, the pump housing 10 is formed with：Enter flow tube 101 and outflow tube 102, the pump housing 10 enters opening 12
It is respectively formed in in flow tube 101 and outflow tube 102 with opening 13 is gone out.
Built-in pump core 40 is fully mounted in pump chamber 11, and which can be such that pump pin 20 moves back and forth wherein, and passes through pump pin 20
Reciprocating motion connection or block into opening 12 and go out opening 13 so as to realize pump liquid.
Specifically, built-in pump core 40 is provided with interior pin hole 41 and flowing hole 42, and flowing hole 42 is arranged at the hole of interior pin hole 41
At wall, hole wall through enabling interior pin hole 41 to be in communication with the outside, its object is to make into opening 12 to connect with interior pin hole 41 by which.
Preferably, interior pin hole 41 for revolution body opening, its axis of rotation (not shown) parallel to first direction A,
Interior pin hole 41 is now designed as a shoulder hole, and specifically, interior pin hole 41 includes according to the difference in aperture：411 He of accommodating section
Trip segment 412, the aperture of wherein accommodating section 411 are larger, and the size of trip segment 412 is less, and accommodating section 411 goes out to circulate positioned at close
The side in hole 13.
The effect of accommodating section 411 is to accommodate check valve assembly 50, and the check valve assembly 50 includes：Interior elastic component 51 and valve
Ball 52,51 one end of interior elastic component withstand out 11 inwall of pump chamber of 13 inner side aperture edge of opening, other end bias valve ball 52
Which is made to withstand on trip segment 412 positioned at 1 end, so when interior elastic component 51 is descended in the raw, valve ball 52 is total
It is biased and blocks interior pin hole 41.When pump liquid is carried out, pump pin 20 is moved back and forth in interior pin hole 41, when from trip segment
The pressure of the liquid stream of 412 sides makes valve ball 52 overcome the biasing force of interior elastic component 51 near going out 13 1 side shifting of opening so as to not
Interior pin hole 41 is blocked again, liquid stream is flowed to out at opening 13, and is come from 411 side of accommodating section in flow stream pressure
When, valve ball 52 will not be moved, cannot be by interior pin hole 41 from liquid stream that fluid through-hole is redirected back into is gone out, and so, valve ball 52 exists
The function of one-way conduction is realized in the presence of interior elastic component 51.Interior elastic component 51 can adopt helical spring.
Used as further preferred version, pump pin 20 is revolving body, in order to realize good pump liquid effect, pump pin 20 with it is interior
The hole wall of 41 trip segment 412 of pin hole is in close contact.So, the end face of pump pin 20 could preferably realize piston as to liquid
Stream applies pressure.
Used as further preferred scheme, 40 periphery of built-in pump core is provided with a liquid storage groove 43, and liquid storage groove 43 is in first party
It is corresponding with the position of flowing hole 42 on A, it is such to be advantageous in that, even if when flowing hole 42 is blocked by pump pin 20, entering circulation
The liquid stream in hole 12 can also be full of liquid storage groove 43, once pump pin 20 is backed out exposes flowing hole 42, liquid stream energy horse in liquid storage groove 43
On ensure the seriality of 13 liquid storage of opening into interior pin hole 41.
External pump core 30 is arranged on the open-mouth of pump chamber 11, and which is open hermetically sealed by this.Specifically, external pump core 30
Outer pin hole 31 is provided with, 41 one end of interior pin hole is alignd with outer pin hole 31 and connected, the other end is alignd and connected with opening 13 is gone out；This
Sample one, pump pin 20 are arranged in external pump core 30 and built-in pump core 40 by what outer pin hole 31, interior pin hole 41 slided, pump pin 20
Through outer pin hole 31 and stretch to interior pin hole 41.
The effect of external pump core 30 is encapsulation pump chamber 11, shares the haul distance needed for pump pin 20 slides in addition, because
It is real in the stroke for carrying out pump liquid for pump pin 20 near this section for going out opening 13 from flowing hole 42 to trip segment 412, so
As long as the precision that strict guarantee coordinates in built-in pump core 40 can be realized continuous reliable pump oil and prevent because coordinating not
It is good and the situation of oil leak occur, pump pin 20 slide remaining stroke guiding then by external pump core 30 undertaking.
As a kind of preferred version, the sealing ring being sleeved on pump pin 20 between built-in pump core 40 and external pump core 30, is provided with
80, sealing ring 80 is in close contact with pump pin 20.So, sealing function is undertaken by sealing ring 80, be reduce further built-in
The processing request of pump core 40.Certainly, sealing ring 80 can also be provided separately within built-in pump core 40 or external pump core 30.
Used as further preferred scheme, outer pin hole 31 is revolution body opening, and which includes：Suit section 311 and section 312, set
Aperture of the aperture of dress section 311 more than section 312, is set with section 311 and is located near the side of built-in pump core 40；Outside pump pin 20
Aperture of the footpath less than or equal to section 312.Built-in pump core 40 is formed near the side of external pump core 30 and is protruding to suit section
Protuberance 44 inside 311, sealing ring 80 are arranged between the end face of the end face of protuberance 44 and section 312.
So it is advantageous in that, protuberance 44 makes the trip segment 412 of interior pin hole 41 apart from increasing without increasing the whole pump housing
10 size, the size combined with the pump housing 10 by external pump core 30 are also guaranteed；Meanwhile, sealing ring 80 is effectively fixed,
Due sealing effectiveness can be played.
It should be noted is that, external pump core 30 and built-in pump core 40 can be being installed to by the way of interference fit
In the pump housing 10.
In order that the fluid pump 100 of the present invention can be adapted in drive mechanism, as a kind of preferred version, fluid pump 100
Also include：It is fixed on the needle cap 60 of 20 outer end of pump pin and applies to make their detached biasing forces between the pump housing 10 and needle cap 60
Outer elastic component 70.Wherein, outer elastic component 70 can adopt helical spring.When realizing driving automatically, as long as being had instrument
Some reciprocating impact devices carry out reciprocating impact to needle cap 60.
The oil pumping device suitable for chain saw of the present invention is the concrete application of fluid pump of the present invention 100, is being applied to chain saw
When, the opening 12 that enters of fluid pump described above 100 is connected to oil can, goes out opening 13 and is connected to the concrete portion for needing lubrication
Part, the actuating device reciprocating impact that its needle cap 60 is had by chain saw.
The basic principles, principal features and advantages of the present invention have been shown and described above.The technical staff of the industry should
Understand, the invention is not limited in any way for above-described embodiment, it is all to be obtained by the way of equivalent or equivalent transformation
Technical scheme, all falls within protection scope of the present invention.
Claims (10)
1. a kind of fluid pump, including：The pump housing, pump pin, the pump housing are provided with：What pump chamber was connected with the pump chamber enter opening and
Go out opening, described pump chamber one end be it is open, the other end be provided with it is described go out opening, it is described enter opening be arranged on the pump chamber
Between two ends；It is characterized in that：The fluid pump also includes：External pump core, connect when the pump pin can be made to move back and forth wherein
Enter opening described in logical or blocking and go out the built-in pump core of opening, the external pump core is provided with outer pin hole, the built-in pump core
It is provided with interior pin hole and is arranged at the interior pin hole hole wall and connects the interior pin hole and enter the flowing hole of opening, the interior pin
Hole one end is connected with outer pin hole, the other end with it is described go out opening connect；The pump pin is slided by the outer pin hole, interior pin hole
Be arranged in the entirety that the external pump core and built-in pump core are constituted, the pump pin passes through the outer pin hole and stretches to described
Interior pin hole.
2. fluid pump according to claim 1, it is characterised in that：The interior pin hole is revolution body opening, and which includes：Accommodating section
And trip segment, more than the trip segment and the aperture for going out opening, the accommodating section is positioned close in the aperture of the accommodating section
It is described go out opening side.
3. fluid pump according to claim 2, it is characterised in that：The interior pin hole is provided with accommodating section：Unidirectional valve group
Part, the check valve assembly include：Interior elastic component and valve ball, described interior elastic component one end withstand it is described go out opening on the inside of aperture
The pump chamber inwall at edge, the other end bias the valve ball makes which withstand on end blocking institute of the trip segment positioned at the valve ball side
State interior pin hole.
4. fluid pump according to claim 3, it is characterised in that：The pump pin is revolving body, the pump pin and the row
The hole wall of journey section is in close contact.
5. fluid pump according to claim 1, it is characterised in that：The glide direction of the pump pin parallel to first direction,
The built-in pump core periphery is provided with a liquid storage groove, liquid storage groove position in said first direction with the flowing hole
Correspondence.
6. the fluid pump according to claim 1 to 5 any one, it is characterised in that：It is in the built-in pump core or/and external
The sealing ring being sleeved on the pump pin, the sealing ring are provided with pump core or/and between the built-in pump core and external pump core
It is in close contact with the pump pin.
7. fluid pump according to claim 6, it is characterised in that：The outer pin hole is revolution body opening, and which includes：Suit section
And section, the aperture of the aperture of the suit section more than the section, the suit section are located near the built-in pump core
Side；Aperture of the external diameter of the pump pin less than or equal to the section.
8. fluid pump according to claim 7, it is characterised in that the built-in pump core is near the side of the external pump core
It is formed with the protuberance for being protruding to the suit intrasegmental part, the sealing ring is arranged on the end face of the protuberance and described logical
Cross between the end face of section.
9. fluid pump according to claim 8, it is characterised in that the fluid pump also includes：It is fixed on outside the pump pin
The needle cap at end and apply to make the outer elastic component of their detached biasing forces between the pump housing and needle cap.
10. a kind of oil pumping device suitable for chain saw, it is characterised in that include：As described in claim 1 to 9 any one
Fluid pump.
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410179369.3A CN105090005B (en) | 2014-04-29 | 2014-04-29 | Fluid pump and oil pumping device composed of fluid pump |
| GB1506844.8A GB2527190B (en) | 2014-04-29 | 2015-04-22 | Chain saw and fluid pump |
| US14/694,293 US20150306783A1 (en) | 2014-04-29 | 2015-04-23 | Chain saw and fluid pump |
| DE202015102051.1U DE202015102051U1 (en) | 2014-04-29 | 2015-04-24 | Chainsaw and fluid pump |
| FR1553739A FR3020302B3 (en) | 2014-04-29 | 2015-04-27 | CHAIN SAW |
| CA2889356A CA2889356C (en) | 2014-04-29 | 2015-04-27 | Chain saw and fluid pump |
| AU2015100569A AU2015100569A4 (en) | 2014-04-29 | 2015-04-29 | Chain Saw And Fluid Pump |
| US15/695,202 US10118307B2 (en) | 2014-04-29 | 2017-09-05 | Chain saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410179369.3A CN105090005B (en) | 2014-04-29 | 2014-04-29 | Fluid pump and oil pumping device composed of fluid pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105090005A CN105090005A (en) | 2015-11-25 |
| CN105090005B true CN105090005B (en) | 2017-04-19 |
Family
ID=54571139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410179369.3A Expired - Fee Related CN105090005B (en) | 2014-04-29 | 2014-04-29 | Fluid pump and oil pumping device composed of fluid pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105090005B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9060724B2 (en) | 2012-05-30 | 2015-06-23 | Magnolia Medical Technologies, Inc. | Fluid diversion mechanism for bodily-fluid sampling |
| US9022950B2 (en) | 2012-05-30 | 2015-05-05 | Magnolia Medical Technologies, Inc. | Fluid diversion mechanism for bodily-fluid sampling |
| ES2878047T3 (en) | 2012-10-11 | 2021-11-18 | Magnolia Medical Technologies Inc | System for administering a fluid to a patient with reduced contamination |
| CN104955392B (en) | 2012-11-30 | 2018-11-02 | 木兰医药技术股份有限公司 | The transfer device based on syringe for body fluid sampling |
| US10772548B2 (en) | 2012-12-04 | 2020-09-15 | Magnolia Medical Technologies, Inc. | Sterile bodily-fluid collection device and methods |
| JP7204742B2 (en) | 2017-09-12 | 2023-01-16 | マグノリア メディカル テクノロジーズ，インコーポレイテッド | FLUID CONTROL DEVICE AND METHOD OF USING FLUID CONTROL DEVICE |
| EP3721086A4 (en) * | 2017-12-07 | 2021-11-10 | Magnolia Medical Technologies, Inc. | Fluid control devices and methods of using the same |
| AU2020218544A1 (en) | 2019-02-08 | 2021-09-16 | Magnolia Medical Technologies, Inc. | Devices and methods for bodily fluid collection and distribution |
| CN113784793B (en) | 2019-03-11 | 2023-09-19 | 木兰医药技术股份有限公司 | Fluid control device and method of using the same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1291035A (en) * | 1971-05-01 | 1972-09-27 | Frank Davison | Chainsaw oil pump |
| CN2138199Y (en) * | 1992-09-12 | 1993-07-14 | 许长钰 | Oil dropping pump for carbonization of heating treatment |
| CN201176975Y (en) * | 2008-04-09 | 2009-01-07 | 黄理 | Chain saw lubrication oil supply pump |
| CN201972825U (en) * | 2010-12-31 | 2011-09-14 | 余姚市舒春机械有限公司 | Diesel engine oil spraying pump assembly |
| CN203879731U (en) * | 2014-04-29 | 2014-10-15 | 南京德朔实业有限公司 | Fluid pump and oil pumping device composed of fluid pump |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS589702U (en) * | 1981-07-14 | 1983-01-21 | 株式会社共立 | Oil supply pump for chain saw |
| US6517330B2 (en) * | 2000-05-10 | 2003-02-11 | Kioritz Corporation | Reciprocating pump |
-
2014
- 2014-04-29 CN CN201410179369.3A patent/CN105090005B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1291035A (en) * | 1971-05-01 | 1972-09-27 | Frank Davison | Chainsaw oil pump |
| CN2138199Y (en) * | 1992-09-12 | 1993-07-14 | 许长钰 | Oil dropping pump for carbonization of heating treatment |
| CN201176975Y (en) * | 2008-04-09 | 2009-01-07 | 黄理 | Chain saw lubrication oil supply pump |
| CN201972825U (en) * | 2010-12-31 | 2011-09-14 | 余姚市舒春机械有限公司 | Diesel engine oil spraying pump assembly |
| CN203879731U (en) * | 2014-04-29 | 2014-10-15 | 南京德朔实业有限公司 | Fluid pump and oil pumping device composed of fluid pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105090005A (en) | 2015-11-25 |
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Address after: 211106 No. 529, 159, Jiangjun Avenue, Jiangning District, Nanjing, Jiangsu Province Patentee after: Nanjing Quanfeng Technology Co.,Ltd. Address before: 211106, No. 159, general road, Jiangning economic and Technological Development Zone, Nanjing, Jiangsu Patentee before: NANJING CHERVON INDUSTRY Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170419 |