CN110342421A - A kind of oil pump and method with fast lifting function - Google Patents
A kind of oil pump and method with fast lifting function Download PDFInfo
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- CN110342421A CN110342421A CN201910727857.6A CN201910727857A CN110342421A CN 110342421 A CN110342421 A CN 110342421A CN 201910727857 A CN201910727857 A CN 201910727857A CN 110342421 A CN110342421 A CN 110342421A
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 230000033228 biological regulation Effects 0.000 claims description 31
- 239000007788 liquid Substances 0.000 claims description 29
- 229910000831 Steel Inorganic materials 0.000 claims description 16
- 239000010959 steel Substances 0.000 claims description 16
- 230000000694 effects Effects 0.000 claims description 7
- 230000007423 decrease Effects 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims 2
- 230000008569 process Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 154
- 239000011148 porous material Substances 0.000 description 13
- 238000010586 diagram Methods 0.000 description 5
- 239000000446 fuel Substances 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
- B66F3/25—Constructional features
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
- B66F3/25—Constructional features
- B66F3/26—Adaptations or arrangements of pistons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
- B66F3/25—Constructional features
- B66F3/42—Constructional features with self-contained pumps, e.g. actuated by hand
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/001—Servomotor systems with fluidic control
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention discloses a kind of oil pump and method with fast lifting function, oil pump includes the pump housing, double plunger mechanism, oil piping system；The inner hollow of the pump housing, the inside epicoele of the pump housing are oil storage tank；The inside of the pump housing is plugged with piston rod；Double plunger mechanism is set to the right side of the pump housing, and handle base is provided on the upside of double plunger mechanism, and the top of handle base is handle connecting plate, and oil pump is connected by handle connecting plate with external handle；The working method of oil pump completes the work of oil pump by multiple steps.Double-plunger oil pump of the invention has revolutionary progress in entire storage sector; Double-plunger oil pump has the bearing capacity of superelevation; it being capable of fast lifting; and it can precisely stop raising; working efficiency is higher while reducing labor intensity, time saving and energy saving, and the setting of oil pump triple protection is so that oil pump use process is safer; and oil pump can be carried out self-protection, the protection pump housing is not damaged.
Description
Technical field
The present invention relates to a kind of pump and method more particularly to a kind of oil pumps and method with fast lifting function.
Background technique
People would generally carry and have enough to meet the need cargo using manual transport trolley, raising vehicle, raising trolley at present, and common removes
Fortune vehicle rises to maximum height 190mm handle from minimum altitude 85mm and needs to act 13 times, and the very slow efficiency of transporting velocity is very low, and
Electrocar is influenced to cannot be introduced into narrow space by own vol to be carried.For commonly increasing vehicle, it will be weighed
Handle needs to act 98 times when object rises to the height of 1500mm from 85mm, and it is longer to carry the required time, and cargo rise has been carried
Worker has pant with a face streaming with sweat when finishing, time-consuming and laborious, and labor intensity of workers is high but handling efficiency is low.Therefore one is needed
The hydraulic device that kind can be realized fast lifting and power is enough during raising and performance is stable, to solve to carry at present
Vehicle increases vehicle, the problems such as speed slow, low efficiency, labor intensity height of transporting goods in raising trolley actual application.
Summary of the invention
In order to solve shortcoming present in above-mentioned technology, the present invention provides a kind of oil with fast lifting function
Pump and method.
In order to solve the above technical problems, the technical solution adopted by the present invention is that: a kind of oil with fast lifting function
Pump, including the pump housing, double plunger mechanism, oil piping system；The inner hollow of the pump housing, the inside epicoele of the pump housing are oil storage tank；The pump housing
Inside is plugged with piston rod；
Double plunger mechanism is set to the right side of the pump housing, and handle base is provided on the upside of double plunger mechanism, handle base
Top is handle connecting plate, and oil pump is connected by handle connecting plate with external handle；The bottom of handle base is provided with handle
Hand rotary shaft, handle base are connected by handle rotary shaft with pump housing rotation；
Double plunger mechanism includes plunger A, plunger B, is set side by side before and after plunger B, plunger A；Plunger A, the top of plunger B are equal
It is provided with handle idler wheel, the inside of handle idler wheel is plugged with handle roller shaft, and handle roller shaft is set in handle base；
Oil piping system includes in-line, vent line, pressure regulation oil circuit, branch's oil circuit；In-line includes in-line A, in-line
One end of B, in-line A are connected with plunger A, and the other end is connected with oil storage tank, and check valve b is provided on in-line A；Oil inlet
One end of road B is connected with plunger B, and the other end is connected with oil storage tank, and check valve e is provided on in-line B；
Vent line includes vent line A, vent line B, and branch's oil circuit includes No.1 branch oil circuit, No. two branch's oil circuits；It is fuel-displaced
One end of road A is connected with plunger A, and one end of vent line B is connected with plunger B, and the other end of vent line A is with vent line B's
The other end is connected by No.1 branch oil circuit with the rear portion of relief valve a after converging；
It is provided with safety valve d on vent line A, safety valve f is provided on vent line B；The rear of relief valve a is provided with pressure maintaining
Valve h, pressure retaining valve h are connected with the rear portion of relief valve a；The inside of relief valve a is plugged with pressure relief valve stem, and the rear of pressure relief valve stem is set
It is equipped with oil circuit steel ball；The front of relief valve a is connected with in-line A；The interior forward end of pressure retaining valve h is provided with valve rod, valve rod
Rear is provided with spring；Pressure retaining valve h is connected by No. two branch's oil circuits with pump housing cavity of resorption；
Pressure regulation oil circuit includes pressure regulation oil circuit A, pressure regulation oil circuit B, and one end of pressure regulation oil circuit A is connected with vent line A, the other end
It is connected with in-line B, is provided with pressure regulator valve c on pressure regulation oil circuit A；One end of pressure regulation oil circuit B is connected with vent line B, another
End is connected with in-line A, is provided with pressure regulator valve g on pressure regulation oil circuit B.
Further, plunger A, plunger B outside be equipped with plunger sheath；Plunger is provided on plunger A, plunger B
Return spring, plunger return spring are located at the inside of plunger sheath.
Further, oil storage tank and pump housing cavity of resorption are separated by gasket.
A kind of the step of working method of the oil pump with fast lifting function are as follows:
Step a: handle is rotated down clockwise, and handle, which rotates clockwise, drives handle base around handle rotary shaft up time
Needle rotation, handle base drive handle idler wheel depresses plunger A, plunger B；Plunger A, plunger B move down outside pump oil, vent line
A, the safety valve d on vent line B, safety valve f are opened, and the oil liquid that plunger A, plunger B are pumped out passes through vent line A, fuel-displaced respectively
Road B is flowed outwardly, and flows into relief valve a through No.1 branch oil circuit after converging along the oil liquid that vent line A, vent line B are flowed outwardly
Rear portion；The rear portion that oil liquid enters relief valve a respectively forwardly pushes oil circuit steel ball to close relief valve a and push valve rod backward later
Pressure retaining valve h is opened, the oil at the rear portion relief valve a flows into the intracavitary bottom for acting on piston rod under the pump housing by pressure retaining valve h, pushes and live
Stopper rod is raised above；
Step b: handle is rotated upwards counterclockwise, and handle rotates counterclockwise drives handle base around the handle rotary shaft inverse time
Needle rotation, handle base drive and are lifted away from plunger A, plunger B on handle idler wheel, and plunger A, plunger B are returned plunger return spring
Position moves up under acting on and the inside oil suction to plunger sheath, and check valve b, the check valve e on in-line A, in-line B are beaten
It opens, the oil liquid in oil storage tank is flowed into the plunger sheath being nested on the outside of plunger A, plunger B respectively by in-line A, in-line B,
And it is full of plunger sheath；
Piston rod is driven to be raised above the load outside driving in turn simultaneously as the handle in step a rotates clockwise
It is raised above, external load generates downward pressure to piston rod；When handle rotates upwards counterclockwise, external loading effect
It is transmitted on the valve rod in pressure retaining valve h in the pressure on piston rod, pushes valve rod to move forward and close pressure retaining valve h；In pressure retaining valve h
The spring of setting plays the role of auxiliary pushing to valve rod forward movement, so that piston rod is regardless of whether by external loading pressure
It can guarantee that pressure retaining valve h is in close state always when handle rotates upwards counterclockwise under the action of power, the closing of pressure retaining valve h
Play the role of first again pressure maintaining caching to ensure that piston rod not pressure release is not glided；And the setting of safety valve d, safety valve f make
Vent line A, vent line B when handle rotates counterclockwise in obstructed state is closed, play second again pressure maintaining caching make
To ensure that piston rod not pressure release is not glided；
Step c: handle is continuously repeated into the rotation clockwise, counterclockwise in step a, step b, piston rod is continuous in oil liquid
Push up effect under rise to setting height；
Step d: pushing pressure relief valve stem backward, and the rear end of pressure relief valve stem pushes oil circuit steel ball backward, drive oil circuit steel ball to
It is mobile afterwards to open relief valve a；Continuation pushes pressure relief valve stem backward, and oil circuit steel ball continues to move backward to be in contact with the front end of valve rod
And valve rod is pushed to move backward, pressure retaining valve h is opened, oil liquid intracavitary under the pump housing flows into pressure retaining valve h through No. two branch's oil circuits at this time
It inside flows into in-line A, finally returns that in oil storage tank, piston rod can decline completely through relief valve a again.
Further, rotation clockwise, counterclockwise is continuously repeated by handle and piston rod fast lifting is reached external negative
The bottom of load；The maximum load capacity of plunger B is greater than the maximum load capacity of plunger A；When the weight of external loading is greater than plunger A
Maximum load capacity when, plunger A stops working, and oil liquid that plunger A is pumped out flows into pressure regulation oil circuit A and washes pressure regulator valve C open
It is flowed back to afterwards along in-line B and completes discharge in oil storage tank；Plunger B, which works on to inject oil liquid in pump housing cavity of resorption, at this time pushes piston
Bar continues to rise.
Further, rotation clockwise, counterclockwise is continuously repeated by handle and piston rod fast lifting is reached external negative
The bottom of load, when the weight of external loading is greater than the maximum load capacity of plunger B, plunger A, plunger B stop working, at this time
Piston rod stops rising and is maintained at stationary state；The oil liquid that plunger B is pumped out flows into pressure regulation oil circuit B and washes pressure regulator valve g open
It is flowed back to afterwards along in-line A and completes discharge in oil storage tank.
Double-plunger oil pump of the invention has revolutionary progress in entire storage sector, and Double-plunger oil pump has
The bearing capacity of superelevation, can fast lifting, and can precisely stop raising, working efficiency is higher while to reduce labour strong
Degree, time saving and energy saving, the setting of oil pump triple protection is so that oil pump use process is safer, and oil pump can be carried out self-protection, protects
It is not damaged to protect the pump housing.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of oil pump.
Fig. 2 is the oil circuit connection relation schematic diagram of oil pump.
Fig. 3 is the explosive view of Fig. 1.
Fig. 4 is the structural schematic diagram of relief valve a.
Fig. 5 is the structural schematic diagram of pressure retaining valve h.
Fig. 6 is the structural schematic diagram of piston rod.
Fig. 7 is the partial enlarged view of piston rod bottom in Fig. 6.
In figure: 1, the pump housing；2, piston rod；3, handle base；4, handle rotary shaft；5, plunger A；6, plunger B；7, handle rolls
Wheel；8, handle roller shaft；9, in-line A；10, in-line B；11, check valve b；12, oil storage tank；13, check valve e；14, fuel-displaced
Road A；15, vent line B；16, safety valve d；17, safety valve f；18, No.1 branch oil circuit；19, No. two branch's oil circuits；20, pressure release
Valve a；21, pressure retaining valve h；22, pressure relief valve stem；23, oil circuit steel ball；24, valve rod；25, spring；26, pump housing cavity of resorption；27, pressure regulation oil
Road A；28, pressure regulation oil circuit B；29, pressure regulator valve c；30, pressure regulator valve g；31, plunger return spring；32, plunger sheath；33, plunger protects
Lid；34, No.1 intercommunicating pore；35, No. two intercommunicating pores.
Specific embodiment
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
As shown in Figure 1,3, oil pump of the invention is a manual transport trolley for low speed warehousing and logistics industry, raising
The dedicated oil pump of vehicle, raising trolley.A kind of oil pump with fast lifting function, including the pump housing 1, double plunger mechanism, oil circuit system
System；The inner hollow of the pump housing 1, the inside epicoele of the pump housing 1 are oil storage tank 12, and the inside cavity of resorption of the pump housing 1 is pump housing cavity of resorption 26, oil storage
Tank 12 is separated with pump housing cavity of resorption 26 by gasket；The inside of the pump housing 1 is plugged with piston rod 2.
The pump housing 1 is sealing and circulating design, i.e., hydraulic oil is concentrated in oil storage tank 12 oil pump in a non-operative state, oil pump
The bottom fuel feeding for synchronously rapidly giving piston rod 2 when work simultaneously by the double plunger of double plunger mechanism, realizes the fast of piston rod 2
Fast raising.
Double plunger mechanism is set to the right side of the pump housing 1, and handle base 3, handle base 3 are provided on the upside of double plunger mechanism
Top be handle connecting plate, oil pump by handle connecting plate with outside handle be connected；The bottom of handle base 3 is provided with
Handle rotary shaft 4, handle base 3 are connected by handle rotary shaft 4 with the rotation of the pump housing 1.
Double plunger mechanism includes plunger A5, plunger B6, is set side by side before and after plunger B6, plunger A5；Plunger A5, plunger B6
Outside is equipped with plunger sheath 32；It is provided with plunger return spring 31 on plunger A5, plunger B6, plunger return spring 31
In the inside of plunger sheath 32.
Handle idler wheel 7 is provided with above plunger A5, plunger B6, the inside of handle idler wheel 7 is plugged with handle roller shaft
8, handle roller shaft 8 is set in handle base 3.
As shown in Fig. 2, oil piping system includes in-line, vent line, pressure regulation oil circuit, branch's oil circuit；In-line includes oil inlet
One end of road A9, in-line B10, in-line A9 are connected with plunger A5, and the other end is connected with oil storage tank 12, on in-line A9
It is provided with check valve b11；One end of in-line B10 is connected with plunger B6, and the other end is connected with oil storage tank 12, in-line
Check valve e13 is provided on B10.
Vent line includes vent line A14, vent line B15, and branch's oil circuit includes 18, No. two branch's oil circuits of No.1 branch oil circuit
19；One end of vent line A14 is connected with plunger A5, and one end of vent line B15 is connected with plunger B6, and vent line A14's is another
One end is connected by No.1 branch oil circuit 18 with the rear portion of relief valve a20 after converging with the other end of vent line B15.
It is provided with safety valve d16 on vent line A14, safety valve f17 is provided on vent line B15；The rear of relief valve a20
It is provided with pressure retaining valve h21, pressure retaining valve h21 is connected with the rear portion of relief valve a20；As shown in figure 4, the inside of relief valve a20 is inserted
It is equipped with pressure relief valve stem 22, the rear of pressure relief valve stem 22 is provided with oil circuit steel ball 23；The front of relief valve a20 is connected with in-line A9
It is logical；As shown in figure 5, the interior forward end of pressure retaining valve h21 is provided with valve rod 24, the rear of valve rod 24 is provided with spring 25；Pressure retaining valve
H21 is connected by No. two branch's oil circuits 19 with pump housing cavity of resorption 26.
Pressure regulation oil circuit includes pressure regulation oil circuit A27, pressure regulation oil circuit B28, and one end of pressure regulation oil circuit A27 is connected with vent line A14
Logical, the other end is connected with in-line B10, is provided with pressure regulator valve c29 on pressure regulation oil circuit A27；One end of pressure regulation oil circuit B28 with go out
Oil circuit B15 is connected, and the other end is connected with in-line A9, is provided with pressure regulator valve g30 on pressure regulation oil circuit B28.
A kind of the step of working method of the oil pump with fast lifting function are as follows:
Step a: handle is rotated down clockwise, and handle, which rotates clockwise, drives handle base 3 suitable around handle rotary shaft 4
Hour hands rotation, handle base 3 drive 7 depresses plunger A5 of handle idler wheel, plunger B6；Plunger A5, plunger B6 move down outside pump
Oil, safety valve d16, safety valve f17 on vent line A14, vent line B15 are opened, the oil liquid that plunger A5, plunger B6 are pumped out point
It is not flowed outwardly by vent line A14, vent line B15, after converging along the oil liquid that vent line A14, vent line B15 are flowed outwardly
The rear portion of relief valve a20 is flowed into through No.1 branch oil circuit 18；The rear portion that oil liquid enters relief valve a20 respectively forwardly pushes oil later
Road steel ball 23 closes relief valve a20 and pushes valve rod 24 to open pressure retaining valve h21 backward, and the oil at the rear portion relief valve a20 passes through pressure maintaining
Valve h21 flows into the bottom that piston rod 2 is acted in pump housing cavity of resorption 26, and piston rod 2 is pushed to be raised above；
Step b: handle is rotated upwards counterclockwise, and handle rotates counterclockwise drives handle base 3 inverse around handle rotary shaft 4
Hour hands rotation, handle base 3 drive and are lifted away from plunger A5, plunger B6 on handle idler wheel 7, and plunger A5, plunger B6 are in plunger return
The return of spring 31 moves up under acting on and the inside oil suction to plunger sheath 32, unidirectional on in-line A9, in-line B10
Valve b11, check valve e13 are opened, and the oil liquid in oil storage tank 12 flows into plunger A5, column by in-line A9, in-line B10 respectively
In the plunger sheath 32 being nested on the outside of plug B6, and it is full of plunger sheath 32；
Piston rod 2 is driven to be raised above the load outside driving in turn simultaneously as the handle in step a rotates clockwise
It is raised above, external load generates downward pressure to piston rod 2；When handle rotates upwards counterclockwise, external loading is made
Pressure on piston rod 2 is transmitted to the valve rod 24 in pressure retaining valve h21, pushes valve rod 24 to move forward and closes pressure retaining valve
h21；The spring 25 being arranged in pressure retaining valve h21 plays the role of auxiliary pushing to the forward movement of valve rod 24, so that piston rod 2 is in nothing
By whether by can guarantee under the action of external loading pressure pressure retaining valve h21 handle counterclockwise upwards rotate when be in always
Closed state, the closing of pressure retaining valve h21 play the role of first again pressure maintaining caching to ensure that 2 not pressure release of piston rod is not glided；And
And the setting of safety valve d16, safety valve f17 are so that vent line A14, vent line B15 are in closing when handle rotates counterclockwise
Obstructed state, play the role of second again pressure maintaining caching to ensure that 2 not pressure release of piston rod is not glided；
Dual pressure maintaining caching effect cooperation ensures that 2 not pressure release of piston rod is not glided, and stops accurate.
Step c: continuously repeating the rotation clockwise, counterclockwise in step a, step b for handle, piston rod 2 oil liquid not
Disconnected pushing up rises to setting height under effect；
Step d: pushing pressure relief valve stem 22 backward, and the rear end of pressure relief valve stem 22 pushes oil circuit steel ball 23 backward, drives oil circuit
Steel ball 23, which moves backward, opens relief valve a20；Continue to push pressure relief valve stem 22 backward, oil circuit steel ball 23 continues to move backward and valve
The front end of bar 24 is in contact and valve rod 24 is pushed to move backward, and opens pressure retaining valve h21, the oil liquid in pump housing cavity of resorption 26 is through two at this time
Number branch's oil circuit 19 is flowed into pressure retaining valve h21 and is flowed into in-line A9 through relief valve a20 again, is finally returned that in oil storage tank 12, living
Stopper rod 2 can decline completely, and the entire working cycles of oil pump are completed.
Oil pump of the invention by plunger A5, plunger B6 while synchronously rapidly gives the bottom fuel feeding of piston rod 2 when making,
It can be realized the fast lifting of piston rod 2 compared with single plunger fuel feeding in the prior art；The piston rod upper end of oil pump and manually
Carrier, increase vehicle, raising trolley lift bench be connected, cargo, which is placed on lift bench, can pass through oil pump control
The lifting of piston rod 2 carries out the carrying of cargo.
Oil pump of the invention is additionally provided with triple protection and makes oil pump safer in use, and first protects again to live
Stopper rod 2 is provided with highly protective, i.e., piston rod, which rises, is raised to after setting height no matter how handle works, and piston rod 2 all will not be again
Continue to rise.As shown in Figure 6,7, the bottom surface of piston rod 2 offers No.1 intercommunicating pore 34, and the bottom sides of piston rod 2 offer
No. two intercommunicating pores 35, No.1 intercommunicating pore 34 are connected with No. two intercommunicating pores 35.Since piston rod 2 is inserted in the inside of the pump housing 1, and
The inside epicoele of the pump housing 1 is oil storage tank 12, and the inside cavity of resorption of the pump housing 1 is pump housing cavity of resorption 26, and oil storage tank 12 and pump housing cavity of resorption 26 are logical
It crosses gasket to be separated, pump housing cavity of resorption 26 is connected with No.1 intercommunicating pore 34, No.1 intercommunicating pore 34 and No. two 35 phases of intercommunicating pore
Connection, but because piston rod 2 is before the not up to maximum height of its setting, the corresponding outside of No. two intercommunicating pores 35 is the pump housing
Position in cavity of resorption 26, therefore oil storage tank 12 and pump housing cavity of resorption 26 are mutually separated；
When 2 raising of piston rod has reached the maximum height of its setting, it is storage that the outside of No. two intercommunicating pores 35 is corresponding at this time
The bottom of oil tank 12, oil storage tank 12 are connected with No. two intercommunicating pores 35 and then are connected by No.1 intercommunicating pore 34 with pump housing cavity of resorption 26
It is logical, therefore oil storage tank 12 and pump housing cavity of resorption 26 are connected to logical, the oil liquid pressure inside the two is equal, therefore in pump housing cavity of resorption 26
Oil liquid can not push piston rod 2 to continue up raising, and piston rod 2 can be realized to be remain stationary in maximum height position, no longer on
It rises.
The second of oil pump of the invention is protected to continuously repeat rotation clockwise, counterclockwise for piston rod 2 by handle again
Fast lifting reaches the bottom of external loading；The maximum load capacity of plunger B6 is greater than the maximum load capacity of plunger A5, this hair
The setting of bright oil pump double plunger has compared with single plunger oil pump in the prior art so that oil pump has bigger load capacity
The bearing capacity of superelevation.When the weight of external loading is greater than the maximum load capacity of plunger A5, plunger A5 stops working, plunger A5
The oil liquid that pumps out flows into pressure regulation oil circuit A27 wash pressure regulator valve C29 open after flowed back to along in-line B10 and complete to release in oil storage tank 12
Pressure, the protection pump housing are not damaged；Plunger B6 works on to inject oil liquid in pump housing cavity of resorption 26 and push on piston rod 2 continues at this time
It rises, the large-tonnage cargo being located on lift bench is driven to continue raising.
The triple protection of oil pump of the invention is that rotation clockwise, counterclockwise is continuously repeated by handle by piston rod 2
Fast lifting reaches the bottom of external loading, when the weight of external loading is greater than the maximum load capacity of plunger B6, plunger A5,
Plunger B6 stops working, and piston rod 2 stops rising and is maintained at stationary state at this time；The oil liquid that plunger B6 is pumped out flows into
Wash open to flow back in oil storage tank 12 along in-line A9 after pressure regulator valve g30 in pressure regulation oil circuit B28 and complete discharge, this be oil pump carry out from
I protects, to prevent loading the overweight damage for causing the pump housing.
Use the manual transport trolley of oil pump of the present invention that can reach maximum height 190mm, this hair after handle acts 5 times
Bright oil pump working efficiency compared with traditional single plunger oil pump improves 230%；Use the raising vehicle of oil pump of the present invention in handle
Maximum height 1500mm can be reached after making 40 times manually, the oil pump of the invention working efficiency compared with traditional single plunger oil pump mentions
It is high by 245%.Oil pump of the invention is greatly saved the working time and reduces labor intensity, and because pressure retaining valve h21 and
The setting of safety valve d16, safety valve f17 play dual pressure maintaining buffer function, and matching with the setting of oil pump triple protection makes
Oil pump it is safer in use, will not pressure release will not decline, oil pump load it is overweight when can be carried out self-protection, protect
The pump housing is not damaged, and Double-plunger oil pump of the invention has revolutionary progress, Double-plunger oil in entire storage sector
Pump the bearing capacity with superelevation, can fast lifting, and can precisely stop raising, working efficiency is higher while reducing labor
Fatigue resistance, time saving and energy saving, effect, function and the advantage highly significant of oil pump.
Above embodiment is not limitation of the present invention, and the present invention is also not limited to the example above, this technology neck
The variations, modifications, additions or substitutions that the technical staff in domain is made within the scope of technical solution of the present invention, also belong to this hair
Bright protection scope.
Claims (6)
1. a kind of oil pump with fast lifting function, it is characterised in that: including the pump housing (1), double plunger mechanism, oil piping system；
The inner hollow of the pump housing (1), the inside epicoele of the pump housing (1) are oil storage tank (12)；The inside of the pump housing (1) is plugged with work
Stopper rod (2)；
The double plunger mechanism is set to the right side of the pump housing (1), and handle base (3), handle are provided on the upside of double plunger mechanism
The top of pedestal (3) is handle connecting plate, and oil pump is connected by handle connecting plate with external handle；The handle base
(3) bottom is provided with handle rotary shaft (4), and handle base (3) is connected by handle rotary shaft (4) with the pump housing (1) rotation；
The double plunger mechanism includes plunger A (5), plunger B (6), is set side by side before and after plunger B (6), plunger A (5)；The column
It is provided with handle idler wheel (7) above plug A (5), plunger B (6), the inside of handle idler wheel (7) is plugged with handle roller shaft
(8), handle roller shaft (8) is set on handle base (3)；
The oil piping system includes in-line, vent line, pressure regulation oil circuit, branch's oil circuit；The in-line include in-line A (9),
One end of in-line B (10), in-line A (9) are connected with plunger A (5), and the other end is connected with oil storage tank (12), in-line A
(9) check valve b (11) are provided on；One end of the in-line B (10) is connected with plunger B (6), the other end and oil storage tank
(12) it is connected, check valve e (13) is provided on in-line B (10)；
The vent line includes vent line A (14), vent line B (15), and branch's oil circuit includes No.1 branch oil circuit (18), No. two points
Branch oil circuit (19)；One end of the vent line A (14) is connected with plunger A (5), one end and plunger B (6) of vent line B (15)
It is connected, the other end of vent line A (14) and the other end of vent line B (15) by No.1 branch oil circuit (18) and are let out after converging
The rear portion of pressure valve a (20) is connected；
It is provided with safety valve d (16) on the vent line A (14), safety valve f (17) is provided on vent line B (15)；It is described to let out
The rear of pressure valve a (20) is provided with pressure retaining valve h (21), and pressure retaining valve h (21) is connected with the rear portion of relief valve a (20)；It is described to let out
The inside of pressure valve a (20) is plugged with pressure relief valve stem (22), and the rear of pressure relief valve stem (22) is provided with oil circuit steel ball (23)；It is described to let out
The front of pressure valve a (20) is connected with in-line A (9)；The interior forward end of the pressure retaining valve h (21) is provided with valve rod (24), valve
The rear of bar (24) is provided with spring (25)；The pressure retaining valve h (21) passes through No. two branch's oil circuits (19) and pump housing cavity of resorption (26)
It is connected；
The pressure regulation oil circuit includes pressure regulation oil circuit A (27), pressure regulation oil circuit B (28), one end and the vent line A of pressure regulation oil circuit A (27)
(14) it is connected, the other end is connected with in-line B (10), and pressure regulator valve c (29) are provided on pressure regulation oil circuit A (27)；The tune
One end of pressure oil road B (28) is connected with vent line B (15), and the other end is connected with in-line A (9), on pressure regulation oil circuit B (28)
It is provided with pressure regulator valve g (30).
2. the oil pump according to claim 1 with fast lifting function, it is characterised in that: the plunger A (5), plunger B
(6) outside is equipped with plunger sheath (32)；The plunger A (5), plunger B are provided with plunger return spring on (6)
(31), plunger return spring (31) is located at the inside of plunger sheath (32).
3. the oil pump according to claim 1 with fast lifting function, it is characterised in that: the oil storage tank (12) and pump
Body cavity of resorption (26) is separated by gasket.
4. a kind of working method of the oil pump with fast lifting function as claimed in claim 2, it is characterised in that: the work
The step of making method are as follows:
Step a: handle is rotated down clockwise, and handle, which rotates clockwise, drives handle base (3) suitable around handle rotary shaft (4)
Hour hands rotation, handle base (3) drive handle idler wheel (7) depresses plunger A (5), plunger B (6)；Plunger A (5), plunger B (6) to
Under move outward pump oil, safety valve d (16), safety valve f (17) on vent line A (14), vent line B (15) are opened, plunger A
(5), the oil liquid that plunger B (6) is pumped out passes through vent line A (14) respectively, vent line B (15) is flowed outwardly, along vent line A
(14), the rear portion of relief valve a (20) is flowed into after the oil liquid that vent line B (15) is flowed outwardly converges through No.1 branch oil circuit (18)；
Oil liquid, which enters after the rear portion of relief valve a (20), respectively forwardly pushes oil circuit steel ball (23) to close relief valve a (20) and to pusher
Ovable valve stem (24) opens pressure retaining valve h (21), and the oil at relief valve a (20) rear portion flows into pump housing cavity of resorption (26) by pressure retaining valve h (21)
The bottom of piston rod (2) is inside acted on, piston rod (2) is pushed to be raised above；
Step b: handle is rotated upwards counterclockwise, and handle rotates counterclockwise drives handle base (3) inverse around handle rotary shaft (4)
Hour hands rotation, handle base (3) drive and are lifted away from plunger A (5), plunger B (6), plunger A (5), plunger B on handle idler wheel (7)
(6) it moves up under the return effect of plunger return spring (31) and inside oil suction to plunger sheath (32), in-line A
(9), the check valve b (11) on in-line B (10), check valve e (13) are opened, and the oil liquid in oil storage tank (12) passes through in-line
A (9), in-line B (10) are flowed into respectively in the plunger sheath (32) being nested on the outside of plunger A (5), plunger B (6), and are full of plunger
Sheath (32)；
Simultaneously as the handle in step a rotate clockwise drive piston rod (2) be raised above so that drive outside load to
It is raised, external load generates downward pressure to piston rod (2)；When handle rotates upwards counterclockwise, external loading is made
Pressure on piston rod (2) is transmitted to the valve rod (24) in pressure retaining valve h (21), pushes valve rod (24) to move forward and closes
Pressure retaining valve h (21)；The spring (25) being arranged in pressure retaining valve h (21), which moves forward valve rod (24), plays the role of auxiliary pushing,
So that piston rod (2) is regardless of whether can guarantee pressure retaining valve h (21) in the handle inverse time under the action of by external loading pressure
Be in close state always when needle rotates upwards, the closing of pressure retaining valve h (21) play the role of first again pressure maintaining caching to ensure
Piston rod (2) not pressure release is not glided；And the setting of safety valve d (16), safety valve f (17) are so that vent line A (14), vent line
B (15) when handle rotates counterclockwise in obstructed state is closed, play the role of second again pressure maintaining caching to ensure piston
Bar (2) not pressure release is not glided；
Step c: handle is continuously repeated into the rotation clockwise, counterclockwise in step a, step b, piston rod (2) is continuous in oil liquid
Push up effect under rise to setting height；
Step d: pushing pressure relief valve stem (22) backward, and the rear end of pressure relief valve stem (22) pushes oil circuit steel ball (23) backward, drives oil
Road steel ball (23), which moves backward, opens relief valve a (20)；Continue backward push pressure relief valve stem (22), oil circuit steel ball (23) continue to
Movement is in contact with the front end of valve rod (24) and valve rod (24) is pushed to move backward afterwards, opens pressure retaining valve h (21), at this time under the pump housing
Oil liquid in chamber (26) flows into pressure retaining valve h (21) through No. two branch's oil circuits (19) flows into in-line A through relief valve a (20) again
(9) it in, finally returns that in oil storage tank (12), piston rod (2) can decline completely.
5. the working method of the oil pump according to claim 4 with fast lifting function, it is characterised in that: pass through handle
Continuously repeat the bottom clockwise, counterclockwise for rotating and piston rod (2) fast lifting being reached to external loading；The maximum of plunger B (6)
Load capacity is greater than the maximum load capacity of plunger A (5)；When the weight of external loading is greater than the maximum load capacity of plunger A (5)
When, plunger A (5) stops working, and the oil liquid that plunger A (5) is pumped out flows into pressure regulation oil circuit A (27) and washes pressure regulator valve C (29) open
It is flowed back to afterwards along in-line B (10) and completes discharge in oil storage tank (12)；Plunger B (6), which works on, at this time injects oil liquid under the pump housing
Piston rod (2) are pushed to continue to rise in chamber (26).
6. the working method of the oil pump according to claim 5 with fast lifting function, it is characterised in that: pass through handle
The bottom clockwise, counterclockwise for rotating and piston rod (2) fast lifting being reached to external loading is continuously repeated, when the weight of external loading
When amount is greater than the maximum load capacity of plunger B (6), plunger A (5), plunger B (6) stop working, and piston rod (2) stops at this time
Rise and is maintained at stationary state；The oil liquid that plunger B (6) is pumped out flows into pressure regulation oil circuit B (28) and washes pressure regulator valve g (30) open
It is flowed back to afterwards along in-line A (9) and completes discharge in oil storage tank (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910727857.6A CN110342421B (en) | 2019-08-08 | 2019-08-08 | Oil pump with rapid lifting function and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910727857.6A CN110342421B (en) | 2019-08-08 | 2019-08-08 | Oil pump with rapid lifting function and method |
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| CN110342421A true CN110342421A (en) | 2019-10-18 |
| CN110342421B CN110342421B (en) | 2024-05-28 |
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| CN201910727857.6A Active CN110342421B (en) | 2019-08-08 | 2019-08-08 | Oil pump with rapid lifting function and method |
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| CN110342421B (en) | 2024-05-28 |
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