CN209025802U - A kind of hydraulic hand-pump - Google Patents
A kind of hydraulic hand-pump Download PDFInfo
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- CN209025802U CN209025802U CN201821803712.7U CN201821803712U CN209025802U CN 209025802 U CN209025802 U CN 209025802U CN 201821803712 U CN201821803712 U CN 201821803712U CN 209025802 U CN209025802 U CN 209025802U
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Abstract
The utility model relates to a kind of hydraulic hand-pumps, the pump housing, pump rod and valve rod including brand-new design, the pump housing is equipped with pump chamber and valve chamber, it is stifled that pump chamber port is equipped with pump rod guiding oil, and pump rod passes through that pump rod guiding oil is stifled to be installed in pump chamber, and valve chamber port is equipped with stem guiding oil and blocks up, valve rod is blocked up across stem guiding oil and is installed in valve chamber, pump chamber is connected to by check valve with valve chamber, and valve rod is equipped with stem guiding mechanism, and pump rod is equipped with pump rod guiding mechanism.It is reasonable in design, from structure and using being more than domestic and international product on durability degree, efficiently solves the leakage problem that hydraulic hand-pump is easy to appear in use.
Description
Technical field
The utility model relates to a kind of hydraulic hand-pumps.
Background technique
High-altitude operation vehicle European and American developed countries and regional development starting it is more early, 20th century the '20s started to develop,
By the development in a nearly century, western developed country high-altitude operation vehicle shows product comprehensive technical level height, operation height
Greatly, the features such as specification kind is complete, structural shape is various, feature-rich, on the whole, developed country's high-altitude operation vehicle industry skill
Comparative maturity, typical products have had the function of high altitude operation, have speedily carried out rescue work, rescue for art and market, and there are a variety of safeguard protections to arrange
It applies, adapts in various place operations.In China, high-altitude operation vehicle manufacturing enterprise starts to walk from early seventies, has more than 30 years so far
History.Up to the present, domestic production enterprise develops to more than 100 families, China high-altitude operation vehicle product market by Qi Bajia
Demand has been always maintained at very fast growth.Hydraulic hand-pump as power source, for high-altitude operation vehicle wind turbine generator system provide it is dynamic
Power output.And the Leakage that hydraulic hand-pump is easy to produce in use become improve hydraulic system head to be solved
Want problem.
Utility model content
In order to overcome the above problem, the utility model provides a kind of hydraulic hand-pump, it is reasonable in design, sets again
The pump housing, pump rod and valve rod have been counted, the direction of motion of bar is oriented to using guide ring or guide sleeve, does bar accurately
It is axially moved, is not in radially wobble, solves the Leakage that traditional manual hydraulic pump is easy to appear.
The utility model is achieved through the following technical solutions:
A kind of hydraulic hand-pump, including the pump housing, which is characterized in that the pump housing is equipped with pump chamber and valve chamber, and pump chamber port is set
There is pump rod guiding is oily to block up, pump rod is blocked up across pump rod guiding oil and is installed in pump chamber, and valve chamber port is blocked up equipped with stem guiding oil, valve rod
It blocks up and is installed in valve chamber across stem guiding oil, pump chamber is connected to by check valve with valve chamber；
In general, those skilled in the art can set unidirectional according to the design needs to facilitate the oil of pump chamber into valve chamber
Valve interconnecting piece pump chamber sectional area and valve chamber section area ratio；
Preferably, the valve rod is equipped with stem guiding mechanism；
Preferably, the stem guiding mechanism includes that stem guiding oil blocks up guide sleeve and valve chamber guide sleeve, stem guiding oil
Stifled guiding is set on the stifled inside of stem guiding oil, cooperates with valve stem slides, and valve chamber guiding is set in the middle part of valve rod and the pump housing
Between, cooperate with valve stem slides；
Preferably, the stem guiding mechanism includes that stem guiding oil blocks up guide sleeve and stem guiding ring, stem guiding oil
Stifled guiding is set on the stifled inside of stem guiding oil, cooperates with valve stem slides, stem guiding ring set is set in the middle part of valve rod, with the pump housing
It is slidably matched；
Preferably, the stem guiding mechanism includes valve chamber guide sleeve and stem guiding ring, and valve chamber guiding is set on valve
In the middle part of bar between the pump housing, cooperate with valve stem slides, stem guiding ring set is set in the middle part of valve rod, is slidably matched with the pump housing；
Preferably, the valve rod is equipped with the stifled Glais ring of stem guiding oil and valve rod Glais ring, stem guiding oil block up Glais ring
Setting cooperates, valve rod Glais ring is arranged and valve rod lower end in the stifled inside of stem guiding oil with valve stem slides；
Preferably, the pump rod is equipped with pump rod guiding mechanism；
Preferably, the pump rod guiding mechanism includes upper guide sleeve and lower guide sleeve, and upper guiding is set on pump rod guiding
The stifled inside upper part of oil, is slidably matched with pump rod, and lower guiding is set on the stifled lower part of pump rod guiding oil, is slidably matched with pump rod；
Preferably, the pump rod guiding mechanism includes upper guide sleeve and pump rod guide ring, and the upper guiding is set on pump
The stifled inner opposite end of bar guiding oil, is slidably matched with pump rod, and the pump rod guide ring setting is matched in pump rod lower part with pump housing sliding
It closes；
Preferably, pump rod Glais ring is arranged in the middle part of the pump rod.
In high-altitude operation vehicle use process, pressure oil enters the pump housing from manual pump intake, flows out from two outlets of the pump housing,
It flow to braking brake respectively, is at this time high pressure in the pump housing, therefore stem guiding oil blocks up and needs to seal two parts, i.e. stem guiding
Oil is stifled to be blocked up and pump housing gap with valve lever clearance and stem guiding oil.It is static seal since the pump housing and stem guiding oil block up, therefore not
It is easy leakage；Stem guiding oil is stifled and valve rod is dynamic sealing, and most products still use O-ring as sealing in the market, and
And valve rod is longer and is not oriented to, therefore will cause O-ring inordinate wear when stem movement, there is external leakage risk.It is sent out in Operation Van
When raw failure, braking need to be released, that is, needs that valve rod is pushed into bottom end manually, height intermediate pressure section is separated, at this time due to pump body design
Runner is relative complex, and stem movement still without guiding, easily causes O-ring to cut, and causes internal leakage, and can not work；Meanwhile
In pump rod or stem movement, the oil since port is used only is blocked up as guiding device, is made bar when axially moving, is moved rail
Mark is unstable, is easy to appear radial swing, and metallic rod is blocked up with metal oil or pump housing inner wall rubs, and causes to generate damage,
Sealing system is caused to leak.
At work, internal pressure is very high for hydraulic hand-pump, and conventional O-ring seals, sealability has in dynamic sealing
Limit.Small in size due to hydraulic hand-pump, selected O-ring specification is accordingly also small, even if selecting hardness highest often at this time
Advise O-ring, it is also desirable to which minimum extrusion gap, to increase the requirement to part processing precision, manufacturing cost is larger.
The utility model provides the design of the valve rod assembly of brand-new design, pump rod component and the pump housing, such to design from knot
It is more than other domestic and international products on structure and use durability degree, generated have the beneficial effect that does two bars accurately axially
Movement, sealing ring caused by avoiding the occurrence of at valve rod due to radially wobbling are cut without working phenomenon and valve rod oil leak shows
As；2) due to having used guiding, avoid during exercise, bar and the metal pump housing or oil it is stifled between friction and caused by bar damage
It is bad, to cause to leak；3) existing O-ring is replaced to move at elevated pressures close due to the sealing performance of Glais ring using Glais ring
It is more preferable to seal effect, and opposite O-ring can permit bigger extrusion space, greatly reduce the requirement on machining accuracy to workpiece,
Reduce manufacturing cost.
Detailed description of the invention
Fig. 1 is hydraulic hand-pump sectional structure chart.
Fig. 2 is the second sectional structure chart of hydraulic hand-pump lower part.
Fig. 3 is hydraulic hand-pump right view.
Fig. 4 is the stem structure figure of embodiment 1.
Fig. 5 is the hydraulic hand-pump sectional structure chart of embodiment 2.
Fig. 6 is the stem structure figure of embodiment 2.
Fig. 7 is the hydraulic hand-pump sectional structure chart of embodiment 3.
Fig. 8 is the stem structure figure of embodiment 3.
Fig. 9 is the pump rod structure chart of embodiment 4.
Figure 10 is the pump rod structure chart of embodiment 5.
In figure, 1, the pump housing, 2, pump rod, 3, valve rod, 4, pump rod guiding oil it is stifled, 5, stem guiding oil it is stifled, 611, axial pump chamber,
612, radial pump chamber, 621, axial valve chamber, 622, radial valve chamber, 63, oil inlet, 64, oil outlet, 7, check valve, 8, spring, 9,
Valve chamber guide sleeve, 10, valve rod Glais ring, 11, the stifled guide sleeve of stem guiding oil, 12, O-ring, 13, the stifled lattice Lay of stem guiding oil
Circle, 14, pump rod Glais ring, 15, lower guide sleeve, 16, upper guide sleeve, 17, pump rod guide ring, 18, stem guiding ring, 19, valve rod
Through-hole.
Specific embodiment
Here is that the present invention will be further described in conjunction with the accompanying drawings and embodiments.
Embodiment 1
As shown in Figure 1, Figure 2, Figure 3, Figure 4, a kind of hydraulic hand-pump, including the pump housing 1, pump rod 2, valve rod 3, the pump housing 1 are equipped with
Pump chamber and valve chamber, pump chamber upper port are equipped with pump rod guiding oil stifled 4, and pump rod guiding oil stifled 4 connects by the way that screw thread and the pump housing 1 are fixed
It connects, valve chamber upper port is equipped with stem guiding oil stifled 5, and stem guiding oil stifled 5 is fixedly connected by screw thread with the pump housing 1, and valve rod is led
The O-ring 12 for acting on static seal is equipped with to stifled 5 outer diameters of oil and 1 junction of the pump housing.Pump chamber is divided into axial pump chamber 611 and radial pump
Chamber 612, valve chamber are divided into axial valve chamber 621 and radial valve chamber 622, and axial pump chamber 611 is single by check valve 7 and radial valve chamber 622
To connection, oil inlet 63 passes through 612 unilaterally connected of check valve 7 and radial pump chamber, wherein axial pump chamber 611 and radial valve chamber 622
Section area ratio can be connected according to design setting, radial valve chamber 622 with oil outlet 64, and oil inlet 63 connects external fuel tank, out
Hydraulic fluid port 64 connects external operating pressure pipeline.Pump rod 2 passes through pump rod guiding oil stifled 4 and is installed in axial pump chamber 611, and pump rod 2 can
It slides axially along axial pump chamber 611 and pump rod guiding oil stifled 4, spring 8 is installed below pump rod 2；Valve rod 3 passes through stem guiding
Oil stifled 5 is installed in axial valve chamber 621, can be slid axially along axial valve chamber 621 and stem guiding oil stifled 5.
Stem guiding oil blocks up 5 inner hole lower ends and is equipped with the stifled guide sleeve 11 of stem guiding oil, and valve rod 3 is blocked up with stem guiding oil and led
To the tight fit of set 11 and slidably, the internal diameter that stem guiding oil blocks up guide sleeve 11 is less than stem guiding oil and blocks up 5 internal diameters, to guarantee
Valve rod 3 blocks up the Shi Buyu stem guiding oil stifled 5 that axially moves of guide sleeve 11 along stem guiding oil and generates friction；In stem guiding oil
Stem guiding oil is equipped with above stifled 5 inner holes and blocks up Glais ring 13, to guarantee that the oil when valve rod 3 moves, in axial valve chamber 621 will not
It leaks into outside hydraulic pump；Valve rod Glais ring 10 is equipped at 3 lower end outer diameter of valve rod, to completely cut off oil inlet 63 and radial valve chamber 622.
Axial 621 inner radius of valve chamber is equipped with valve chamber guide sleeve 9, and valve chamber guide sleeve 9 is located above radial valve chamber 622 and oily with stem guiding
Stifled 5 at a distance, and valve chamber guide sleeve 9 and stem guiding oil block up guide sleeve 11 and is located at same axle center, provides jointly to valve rod 3
Support and guiding, it is ensured that 3 motion profile of valve rod is fixed point-blank, and valve rod 3 is relative to the pump housing 1 and stem guiding oil stifled 5
It can only be accurately axially moved, be not in radial motion or swing, guarantee that the stem guiding oil for being used as dynamic sealing blocks up lattice
Lay circle 13 and 10 good seal of valve rod Glais ring.
Embodiment 2
As shown in Figure 5, Figure 6, in the structure of embodiment 1, axial 621 inner radius of valve chamber is equipped with valve chamber guide sleeve 9, valve chamber
Guide sleeve 9 is located at radial 622 top of valve chamber and blocks up 5 at a distance with stem guiding oil, and the internal diameter of valve chamber guide sleeve 9 is less than
The internal diameter of axial valve chamber 621, with guarantee valve rod 3 along valve rod oil guidance tape 9 axially move Shi Buyu axial direction valve chamber 621 generation rub
It wipes；Be arranged with stem guiding ring 18 in the middle part of valve rod 3, stem guiding ring 18 is located at 9 top of valve chamber guide sleeve, stem guiding ring 18 with
Axial 621 inner wall of valve chamber is fitted close and can slide along inner wall, through-hole 19 is equipped in the middle part of valve rod 3, to guarantee radial valve chamber 622
It is connected to axial valve chamber 621, pressure is identical；Inner radius is equipped with stem guiding oil and blocks up Glais ring 13 above stem guiding oil stifled 5,
To guarantee that the oil when valve rod 3 moves, in axial valve chamber 621 will not leak into outside hydraulic pump；Valve is equipped at 3 lower end outer diameter of valve rod
Bar Glais ring 10, to completely cut off oil inlet 63 and radial valve chamber 622；Stem guiding ring 18 and valve chamber guide sleeve 9 are located at same axis
The heart provides support and guiding jointly for valve rod 3, it is ensured that 3 motion profile of valve rod is fixed point-blank, and valve rod 3 is relative to pump
Body 1 and stem guiding oil stifled 5 can only be accurately axially moved, and are not in radial motion or swing, guaranteed close with actuation
The stem guiding oil of envelope blocks up Glais ring 13 and 10 good seal of valve rod Glais ring.
Embodiment 3
As shown in Figure 7, Figure 8, in the structure of embodiment 1, it is stifled equipped with stem guiding oil that stem guiding oil blocks up 5 inner hole lower ends
Guide sleeve 11, valve rod 3 and stem guiding oil block up guide sleeve 11 and are fitted close and can block up the sliding of guide sleeve 11, valve along stem guiding oil
The internal diameter of the stifled guide sleeve 11 of bar guiding oil is less than stem guiding oil and blocks up 5 internal diameters, to guarantee that valve rod 3 blocks up guide sleeve along stem guiding oil
The 11 Shi Buyu stem guiding oil stifled 5 that axially move generate friction；Inner radius is equipped with stem guiding above stem guiding oil stifled 5
The stifled Glais ring 13 of oil, to guarantee that the oil when valve rod 3 moves, in axial valve chamber 621 will not leak into outside hydraulic pump, under valve rod 3
It holds and is equipped with valve rod Glais ring 10 at outer diameter, to completely cut off oil inlet 63 and radial valve chamber 622；Valve rod is arranged in the middle part of valve rod 3 to lead
To ring 18, stem guiding ring 18 is located at stem guiding oil and blocks up 11 lower section of guide sleeve, 621 inner wall of stem guiding ring 18 and axial valve chamber
It is fitted close and can be slided along inner wall, through-hole 19 is equipped in the middle part of valve rod 3 to guarantee that radial valve chamber 622 connects with axial valve chamber 621
Logical, pressure is identical；Stem guiding ring 18 and stem guiding oil block up guide sleeve 11 and are located at same axle center, provide branch to valve rod 3 jointly
Support and guiding, it is ensured that 3 motion profile of valve rod is fixed point-blank, and valve rod 3 is 5 stifled relative to the pump housing 1 and stem guiding oil
It can be carried out and be accurately axially moved, be not in radial motion or swing, guarantee that the stem guiding oil for being used as dynamic sealing blocks up lattice Lay
Circle 13 and 10 good seal of valve rod Glais ring.
Embodiment 4
As shown in figure 9, stifled 4 inner holes of pump rod guiding oil are equipped with lower guide sleeve 15 and upper guide sleeve in the structure of embodiment 1
16, lower guide sleeve 15 is located at the inner hole lower end of pump rod guiding oil stifled 4, and upper guide sleeve 16 is located on the inner hole of pump rod guiding oil stifled 4
End, two guide sleeves and pump rod 2 are fitted close, and are accurately axially moved with guaranteeing that pump rod 2 can only be done in axial pump chamber 611,
Without radial motion or swing, it is different to guarantee that the pump rod Glais ring 14 for being used as dynamic sealing will not occur because of the swing of pump rod 2
Often abrasion.
Embodiment 5
As shown in Figure 10, in the structure of embodiment 1, in a preferred embodiment, stifled 4 inner holes of pump rod guiding oil are set
There is upper guide sleeve 16, upper guide sleeve 16 is fitted close with pump rod 2, and pump rod guide ring 17, pump rod guide ring 17 are equipped with below pump rod 2
Above pump rod Glais ring 14, outer diameter is greater than 2 outer diameter of pump rod, is fitted close with axial pump chamber 611, upper guide sleeve 16 and pump
Bar guide ring 17 is located at same axle center, and common auxiliary pump rod 2 can only be done in axial pump chamber 611 to be accurately axially moved, without
It will appear radial motion or swing, guarantee that the pump rod Glais ring 14 for being used as dynamic sealing abnormal grind will not occur because pump rod 2 is swung
Damage.
In use, pressing pump rod 2, pump rod 2 does under the effect of pump rod guiding mechanism and is accurately axially moved, due to Glais ring
14 sealing function makes pump chamber generate high pressure since intracavitary volume reduces, and works so as to cause check valve 7 at two, axial pump
Chamber 611 is connected to radial valve chamber 622, and oil flows into valve chamber from pump chamber, and valve chamber blocks up Glais ring 13, valve rod lattice Lay due to stem guiding oil
The sealing function of circle 10 and O-ring 12, valve chamber is interior to generate high pressure, generates pressure to oil outlet 64；After pressing, spring 8 is pushed away
Dynamic 2 backhaul of pump rod forms negative pressure at this time in pump chamber, generate work so as to cause check valve 7 at two, axial pump chamber 611 with it is radial
Valve chamber 622 is no longer connected to, to make valve chamber pressure maintaining, hydraulic fluid port 63 is connected to radial pump chamber 612, and atmospheric pressure is by hydraulic oil from hydraulic fluid port 63
It is pressed into pump chamber, completes a pressing circulation.Oil suction and pressure oil are completed by the pressing pump rod 2 to move in circles, finally makes valve chamber pressure
Power reaches requirement.After the completion of use, valve rod 3 is pulled upwards, valve rod 3 is under the effect of stem guiding mechanism in axial valve chamber
Do in 621 and be accurately axially moved, the sealing of valve rod Glais ring 10 releases, and radial valve chamber 622 be connected to hydraulic fluid port 63, valve chamber with greatly
Oil is pushed back fuel tank via oil outlet 64 and hydraulic fluid port 63 from operating pressure pipeline by the pressure difference of air pressure, is restored normal pressure, is completed pressure
Unloading.
Claims (10)
1. a kind of hydraulic hand-pump, including the pump housing, which is characterized in that the pump housing is equipped with pump chamber and valve chamber, and pump chamber port is equipped with
Pump rod guiding is oily stifled, and pump rod is blocked up across pump rod guiding oil and is installed in pump chamber, and valve chamber port is stifled equipped with stem guiding oil, and valve rod is worn
Cross that stem guiding oil is stifled to be installed in valve chamber, pump chamber is connected to by check valve with valve chamber.
2. a kind of hydraulic hand-pump according to claim 1, which is characterized in that the valve rod is equipped with stem guiding mechanism.
3. a kind of hydraulic hand-pump according to claim 2, which is characterized in that the stem guiding mechanism includes that valve rod oil is stifled
Guide sleeve and valve chamber guide sleeve, the stifled guiding of valve rod oil are set on the stifled inside of stem guiding oil, cooperate with valve stem slides, valve chamber is led
To being set in the middle part of valve rod between the pump housing, cooperate with valve stem slides.
4. a kind of hydraulic hand-pump according to claim 2, which is characterized in that the stem guiding mechanism includes that valve rod oil is stifled
Guide sleeve and stem guiding ring, the stifled guiding of valve rod oil are set on the stifled inside of stem guiding oil, cooperate with valve stem slides, valve rod is led
It is set in the middle part of valve rod to ring set, is slidably matched with the pump housing.
5. a kind of hydraulic hand-pump according to claim 2, which is characterized in that the stem guiding mechanism includes valve chamber guiding
Set and stem guiding ring, valve chamber guiding are set in the middle part of valve rod between the pump housing, cooperate with valve stem slides, stem guiding ring set
In the middle part of valve rod, it is slidably matched with the pump housing.
6. according to claim 1 to a kind of hydraulic hand-pump described in any claim in 5, which is characterized in that the valve rod
Glais ring and valve rod Glais ring are blocked up equipped with valve rod oil, valve rod oil blocks up Glais ring and is fixed at the stifled inside of stem guiding oil, with valve rod
It is slidably connected, valve rod Glais ring is sheathed on valve rod lower end.
7. a kind of hydraulic hand-pump according to claim 1, which is characterized in that the pump rod is equipped with pump rod guiding mechanism.
8. a kind of hydraulic hand-pump according to claim 7, which is characterized in that the pump rod guiding mechanism includes upper guide sleeve
With lower guide sleeve, upper guiding is set on the stifled inside upper part of pump rod guiding oil, is slidably matched with pump rod, lower guiding is set on pump
The stifled lower part of bar guiding oil, is slidably matched with pump rod.
9. a kind of hydraulic hand-pump according to claim 7, which is characterized in that the pump rod guiding mechanism includes upper guide sleeve
With pump rod guide ring, the upper guiding is set on the stifled inner opposite end of pump rod guiding oil, is slidably matched with pump rod, the pump rod is led
It is set to pump rod lower part to ring set, is slidably matched with the pump housing.
10. a kind of hydraulic hand-pump according to claim 8 or claim 9, which is characterized in that be arranged with pump rod in the middle part of the pump rod
Glais ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821803712.7U CN209025802U (en) | 2018-11-02 | 2018-11-02 | A kind of hydraulic hand-pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821803712.7U CN209025802U (en) | 2018-11-02 | 2018-11-02 | A kind of hydraulic hand-pump |
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| Publication Number | Publication Date |
|---|---|
| CN209025802U true CN209025802U (en) | 2019-06-25 |
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ID=66907878
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821803712.7U Active CN209025802U (en) | 2018-11-02 | 2018-11-02 | A kind of hydraulic hand-pump |
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| Country | Link |
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| CN (1) | CN209025802U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139408A (en) * | 2018-11-02 | 2019-01-04 | 纪方 | A kind of hydraulic hand-pump |
-
2018
- 2018-11-02 CN CN201821803712.7U patent/CN209025802U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139408A (en) * | 2018-11-02 | 2019-01-04 | 纪方 | A kind of hydraulic hand-pump |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220119 Address after: 201600 floor 2-a77, building 1, Lane 599, Zhongmin Road, Maogang Town, Songjiang District, Shanghai Patentee after: SHANGHAI FUMU HYDRAULIC TECHNOLOGY CO.,LTD. Address before: 201600 No. 55, Lane 1858, Gulou Road, Songjiang District, Shanghai Patentee before: Ji Fang |
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| TR01 | Transfer of patent right |