CN207920986U - A kind of Pneumatic booster pump with unloading function - Google Patents
A kind of Pneumatic booster pump with unloading function Download PDFInfo
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- CN207920986U CN207920986U CN201820148963.XU CN201820148963U CN207920986U CN 207920986 U CN207920986 U CN 207920986U CN 201820148963 U CN201820148963 U CN 201820148963U CN 207920986 U CN207920986 U CN 207920986U
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- booster cavity
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- inlet pipe
- liquid booster
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- 239000007788 liquid Substances 0.000 claims abstract description 96
- 239000002828 fuel tank Substances 0.000 claims abstract description 22
- 230000001681 protective effect Effects 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000008054 signal transmission Effects 0.000 description 3
- 208000002925 dental caries Diseases 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model belongs to increase pump technical field,Propose a kind of Pneumatic booster pump with unloading function,Including cylinder barrel,Piston is provided in cylinder barrel,Cylinder barrel is connect with air source,The both sides of piston are both provided with plunger,The both sides of cylinder barrel are respectively arranged with liquid booster cavity one and liquid booster cavity two,Two plungers are respectively protruding into liquid booster cavity one and liquid booster cavity two,Liquid booster cavity one is all connected with oil inlet pipe one and flowline one,Liquid booster cavity two is all connected with oil inlet pipe two and flowline two,Oil inlet pipe one and oil inlet pipe two are connect with fuel tank,Oil inlet pipe one,Flowline one,It is both provided with check valve on oil inlet pipe two and flowline two,The oil outlet end of flowline two is connect with the safety valve of an overflow valve,The main valve of overflow valve is all connected with the oil outlet end of flowline one and fuel tank,It solves traditional pneumatic increase to pump when the pressure of side is unable to meet demand,The technical issues of lacking corresponding protective device.
Description
Technical field
The utility model belongs to increase pump technical field, is related to a kind of Pneumatic booster pump with unloading function.
Background technology
The supercharging principle of Pneumatic booster pump is that the high hydraulic pressure of small area piston, gas are generated using the low pressure of large area piston
Pressure zone piston moves, and piston rod is to exporting liquid after liquid acting generation hydraulic pressure, and traditional pneumatic increase pump is when one
When the pressure of side is unable to meet demand, lack corresponding protective device.
Utility model content
The utility model proposes a kind of Pneumatic booster pumps with unloading function, solve above-mentioned technical problem.
What the technical solution of the utility model was realized in：
A kind of Pneumatic booster pump with unloading function, including：
Cylinder barrel is provided with piston in the cylinder barrel, and the cylinder barrel is connect with air source, and the both sides of the piston are both provided with column
Plug, the both sides of the cylinder barrel are respectively arranged with liquid booster cavity one and liquid booster cavity two, and two plungers are respectively protruding into institute
It states in liquid booster cavity one and the liquid booster cavity two, the liquid booster cavity one connects with oil inlet pipe one and flowline one
Connect, the liquid booster cavity two is all connected with oil inlet pipe two and flowline two, the oil inlet pipe one and the oil inlet pipe two with
Fuel tank connects, and check valve is both provided on the oil inlet pipe one, the flowline one, the oil inlet pipe two and flowline two,
The oil outlet end of the flowline two is connect with the safety valve of an overflow valve, the main valve of the overflow valve and the flowline one
Oil outlet end and the fuel tank are all connected with.
As further technical solution, the plunger includes big plunger and small plunger, the cross of the big plunger free end
Sectional area is more than the cross-sectional area of the small plunger free end, and the big plunger and the small plunger are respectively protruding into the liquid and increase
It presses in chamber one and the liquid booster cavity two.
As further technical solution, the big plunger is in cylindrical type, and the small plunger is in cone, and the pillar
The free end of plug is the smaller one end of diameter.
As further technical solution, the liquid booster cavity one is also connect by oil return pipe one with the fuel tank, institute
It states and is provided with switch valve one on oil return pipe one.
As further technical solution, the liquid booster cavity two is also connect by oil return pipe two with the fuel tank, institute
It states and is provided with switch valve two on oil return pipe two.
Compared with prior art, it utility model works principle and has the beneficial effect that：
1, in the utility model, cylinder barrel is connect with air source, air source power effect under push piston in cylinder barrel back and forth
Movement, to which plunger moves back and forth in liquid booster cavity one and liquid booster cavity two, oil inlet pipe one and oil inlet pipe two respectively will
Oil conveying in fuel tank is transported to by check valve in liquid booster cavity one and liquid booster cavity two, in the pressurization of plunger
In, liquid after supercharged is exported by flowline one and flowline two again, when the pressure in liquid booster cavity two increases more than liquid
When pressing the fluid pressure in chamber one, i.e., the liquid being pressurized in liquid booster cavity one cannot meet the needs, flowline two
Oil outlet end is connect with the safety valve of an overflow valve, and by pressure signal transmission to overflow valve, overflow valve is opened, liquid booster cavity one
In liquid flowed back in fuel tank by flowline one and overflow valve, if necessary to monitor whether the pressure in liquid booster cavity two drops
It is low, the safety valve of another overflow valve, the main valve of flowline two and overflow valve can be connected at the oil outlet end of flowline one
Connection, therefore the device plays the role of protection, and the hydraulic pressure of output is made to meet the requirement of pressure.
2, in the utility model, big plunger and small plunger backhaul in liquid booster cavity one and liquid booster cavity two respectively
It is dynamic, the liquid in liquid booster cavity one and liquid booster cavity two is pressurized, after pressure reaches to a certain degree, big plunger is very
Difficulty further increases hydraulic pressure in liquid booster cavity one, at this time in stop liquid booster cavity one liquid inflow, small plunger cut
Area is smaller, can continue to squeeze liquid in liquid booster cavity two, further increases hydraulic pressure, meet requirements of one's work；Pillar
In cone, free end diameter is smaller to be easy to stretch into hydraulically full cavity plug, and the diameter far from free end gradually increases, with
Cylinder compares charging efficiency higher, and degree of boost is also stronger；When needing the larger big plunger of pressure being pressurized cannot achieve, beat
Open switching valve one, the liquid in liquid booster cavity one can be flow back by oil return pipe one in fuel tank, only liquid booster cavity two into
Row supercharging and output；It can be turned off by selecting switch valve one and switch valve two or open one of them, realize that liquid increases
It presses chamber one and liquid booster cavity two is pressurized output simultaneously or only one of which carries out supercharging output, be better able to be applicable in practical
Requirements of one's work.
Description of the drawings
Utility model will be further described in detail below with reference to the attached drawings and specific embodiments.
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is another example structure schematic diagram of the utility model；
In figure：1- pistons, 2- cylinder barrels, 21- air cavitys one, 22- air cavitys two, 23- air inlets, the gas outlets 24-, the big plungers of 3-,
4- small plungers, 5- liquid booster cavity one, 6- liquid booster cavity two, 7- oil inlet pipes one, 8- flowlines one, 9- oil inlet pipes two, 10- goes out
Oil pipe two, 11- fuel tanks, 12- oil return pipes one, 13- switch valves one, 14- oil return pipes two, 15- switch valves two, 16- check valves, 17-
Sealing ring, 18- overflow valves.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
The every other embodiment obtained, shall fall within the protection scope of the present invention.
As shown in Fig. 1~2, the utility model proposes a kind of Pneumatic booster pumps with unloading function, including：
Cylinder barrel 2 is provided with piston 1 in cylinder barrel 2, and cylinder barrel 2 is connect with air source, and the both sides of piston 1 are both provided with plunger, cylinder barrel
2 both sides are respectively arranged with liquid booster cavity 1 and liquid booster cavity 26, and two plungers are respectively protruding into one 5 He of liquid booster cavity
In liquid booster cavity 26, liquid booster cavity 1 is all connected with oil inlet pipe 1 and flowline 1, liquid booster cavity 26 and oil inlet
Pipe 29 and flowline 2 10 are all connected with, and oil inlet pipe 1 and oil inlet pipe 29 are connect with fuel tank 11, oil inlet pipe 1, flowline one
8, check valve 16, the oil outlet end of flowline 2 10 and an overflow valve 18 are both provided on oil inlet pipe 29 and flowline 2 10
Safety valve connection, the main valve of overflow valve 18 is all connected with the oil outlet end of flowline 1 and fuel tank 11.
In the present embodiment, cylinder barrel 2 is connect with air source, pushes piston 1 to be backhauled in cylinder barrel 2 under the power effect of air source
Dynamic, to which plunger moves back and forth in liquid booster cavity 1 and liquid booster cavity 26, oil inlet pipe 1 and oil inlet pipe 29 are distinguished
Oil conveying in fuel tank 11 is transported to by check valve 16 in liquid booster cavity 1 and liquid booster cavity 26, in the increasing of plunger
During pressure, liquid after supercharged is exported by flowline 1 and flowline 2 10 again, the pressure in liquid booster cavity 26
When more than fluid pressure in liquid booster cavity 1, i.e., the liquid being pressurized in liquid booster cavity 1 cannot meet the needs
, the oil outlet end of flowline 2 10 is connect with the safety valve of an overflow valve 18, by pressure signal transmission to overflow valve 18, overflow
Valve 18 is opened, and the liquid in liquid booster cavity 1 is flowed back to by flowline 1 and overflow valve 18 in fuel tank 11, if necessary to supervise
Whether the pressure in draining body booster cavity 26 reduces, and can connect another overflow valve at the oil outlet end of flowline 1
Safety valve, flowline 2 10 are connect with the main valve of overflow valve, therefore the device plays the role of protection, and the hydraulic pressure of output is made to meet
The requirement of pressure.
Further, plunger includes big plunger 3 and small plunger 4, and the cross-sectional area of 3 free end of big plunger is more than small plunger 4 certainly
By the cross-sectional area held, big plunger 3 and small plunger 4 are respectively protruding into liquid booster cavity 1 and liquid booster cavity 26.
In the present embodiment, big plunger 3 and small plunger 4 backhaul in liquid booster cavity 1 and liquid booster cavity 26 respectively
It is dynamic, the liquid in liquid booster cavity 1 and liquid booster cavity 26 is pressurized, after pressure reaches to a certain degree, big plunger
3 be difficult that hydraulic pressure is further increased in liquid booster cavity 1, and the pressure in liquid booster cavity 1 is less than liquid booster cavity at this time
Pressure in 26, the oil outlet end of flowline 2 10 is connect with the safety valve of an overflow valve 18, by pressure signal transmission to overflow
Valve 18, overflow valve 18 are opened, and the liquid in liquid booster cavity 1 is flowed back to by flowline 1 and overflow valve 18 in fuel tank 11, small
The sectional area of plunger 4 is smaller, can continue to squeeze liquid in liquid booster cavity 26, further increases hydraulic pressure, meet work
It needs, therefore the only output hydraulic pressure from liquid booster cavity 26.
Further, big plunger 3 is in cylindrical type, and small plunger 4 is in cone, and the free end of small plunger 4 is that diameter is smaller
One end.
In the present embodiment, small plunger 4 is in cone, and free end diameter is smaller to be easy to stretch into hydraulically full cavity, far
Diameter from free end gradually increases, the charging efficiency higher compared with cylindrical, and degree of boost is also stronger.
Further, liquid booster cavity 1 is also connect by oil return pipe 1 with fuel tank 11, is provided with out on oil return pipe 1
Close valve 1.
In the present embodiment, when needing the larger big plunger of the pressure that is pressurized 3 cannot achieve, valve 1, liquid are turned on the switch
Liquid in booster cavity 1 can be flow back by oil return pipe 1 in fuel tank 11, only liquid booster cavity 26 carry out supercharging and it is defeated
Go out.
Further, liquid booster cavity 26 is also connect by oil return pipe 2 14 with fuel tank 11, is provided with out on oil return pipe 2 14
Close valve 2 15.
In the present embodiment, it can be turned off by selecting switch valve 1 and switch valve 2 15 or open one of them,
It realizes liquid booster cavity 1 and liquid booster cavity 26 is pressurized output simultaneously or only one of which carries out supercharging output, more
The needs of real work can be applicable in.
Further, cylinder barrel 2 is divided into air cavity 1 and air cavity 2 22 by piston 1, is all provided on air cavity 1 and air cavity 2 22
It is equipped with air inlet 23 and gas outlet 24.
In the present embodiment, air inlet 23 and gas outlet 24, one of chamber are both provided on air cavity 1 and air cavity 2 22
Another chamber outlet when air inlet, two chamber alternately air inlets realize the reciprocating motion of piston 1, convert air pressure to hydraulic pressure.
Further, big plunger 3 and small plunger 4 and the contact position of cylinder barrel 2 are both provided with sealing ring 17.
Further, the section of piston 1 is in I-shaped.
In the present embodiment, the setting of sealing ring 17 prevents the leakage of gas；The section of piston 1 is in I-shaped, wider section
Face is contacted with cylinder barrel 2, and sealing effect is more preferable.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection domain within.
Claims (5)
1. a kind of Pneumatic booster pump with unloading function, which is characterized in that including cylinder barrel (2), be provided in the cylinder barrel (2)
Piston (1), the cylinder barrel (2) connect with air source, and the both sides of the piston (1) are both provided with plunger, the both sides of the cylinder barrel (2)
It is respectively arranged with liquid booster cavity one (5) and liquid booster cavity two (6), two plungers are respectively protruding into the liquid booster cavity
In one (5) and the liquid booster cavity two (6),
The liquid booster cavity one (5) is all connected with oil inlet pipe one (7) and flowline one (8), the liquid booster cavity two (6) with
Oil inlet pipe two (9) and flowline two (10) are all connected with, the oil inlet pipe one (7) and the oil inlet pipe two (9) with fuel tank (11)
It connects, is respectively provided on the oil inlet pipe one (7), the flowline one (8), the oil inlet pipe two (9) and flowline two (10)
There is check valve (16),
The oil outlet end of the flowline two (10) is connect with the safety valve of an overflow valve (18), the main valve of the overflow valve (18)
It is all connected with the oil outlet end of the flowline one (8) and the fuel tank (11).
2. a kind of Pneumatic booster pump with unloading function according to claim 1, which is characterized in that the plunger includes
Big plunger (3) and small plunger (4), the cross-sectional area of big plunger (3) free end are more than the cross of the small plunger (4) free end
Sectional area, the big plunger (3) and the small plunger (4) are respectively protruding into the liquid booster cavity one (5) and liquid supercharging
In chamber two (6).
3. a kind of Pneumatic booster pump with unloading function according to claim 2, which is characterized in that the big plunger
(3) it is in cylindrical type, the small plunger (4) is in cone, and the free end of the small plunger (4) is the smaller one end of diameter.
4. a kind of Pneumatic booster pump with unloading function according to claim 2, which is characterized in that the liquid supercharging
Chamber one (5) is also connect by oil return pipe one (12) with the fuel tank (11), and switch valve one is provided on the oil return pipe one (12)
(13)。
5. a kind of Pneumatic booster pump with unloading function according to claim 4, which is characterized in that the liquid supercharging
Chamber two (6) is also connect by oil return pipe two (14) with the fuel tank (11), and switch valve two is provided on the oil return pipe two (14)
(15)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820148963.XU CN207920986U (en) | 2018-01-29 | 2018-01-29 | A kind of Pneumatic booster pump with unloading function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820148963.XU CN207920986U (en) | 2018-01-29 | 2018-01-29 | A kind of Pneumatic booster pump with unloading function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207920986U true CN207920986U (en) | 2018-09-28 |
Family
ID=63606158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820148963.XU Active CN207920986U (en) | 2018-01-29 | 2018-01-29 | A kind of Pneumatic booster pump with unloading function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207920986U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115522594A (en) * | 2022-08-26 | 2022-12-27 | 德州宝鼎液压机械有限公司 | Excavator automatic boosting device and automatic boosting method |
-
2018
- 2018-01-29 CN CN201820148963.XU patent/CN207920986U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115522594A (en) * | 2022-08-26 | 2022-12-27 | 德州宝鼎液压机械有限公司 | Excavator automatic boosting device and automatic boosting method |
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