CN108843472A - Chain saw with pre- oil feeding device - Google Patents
Chain saw with pre- oil feeding device Download PDFInfo
- Publication number
- CN108843472A CN108843472A CN201810402222.4A CN201810402222A CN108843472A CN 108843472 A CN108843472 A CN 108843472A CN 201810402222 A CN201810402222 A CN 201810402222A CN 108843472 A CN108843472 A CN 108843472A
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- Prior art keywords
- oil
- cylinder body
- chain saw
- engine
- pressure regulation
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0047—Layout or arrangement of systems for feeding fuel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
- F02M37/0017—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor related to fuel pipes or their connections, e.g. joints or sealings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0047—Layout or arrangement of systems for feeding fuel
- F02M37/007—Layout or arrangement of systems for feeding fuel characterised by its use in vehicles, in stationary plants or in small engines, e.g. hand held tools
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a kind of chain saws of the pre- oil feeding device of band, it is desirable to provide one kind can shorten the starting time of engine, to reduce the chain saw with pre- oil feeding device that operator starts the labor intensity of engine by hand starter.It includes fuel tank, the inflow pipeline of the oil inlet and fuel tank of carburetor and connection carburetor, it is characterized in that, it further include pre- oil feeder, pre- oil feeder includes elastic lubricating cup, the pedestal of the simultaneously rim of a cup of sealed elastic lubricating cup is connect with the rim of a cup of elastic lubricating cup, the inlet port and oil discharge outlet for being set on the base and being connected with the inner cavity of elastic lubricating cup, the oil sucting one-way valve being arranged in inlet port and the oil extraction check valve being arranged in oil discharge outlet, the inflow pipeline includes preceding oil inlet pipe and rear oil inlet pipe, preceding oil inlet pipe connection fuel tank and inlet port, the oil inlet of oil inlet pipe connection oil discharge outlet and carburetor afterwards.
Description
Technical field
The present invention relates to a kind of chain saws, and in particular to a kind of chain saw of the pre- oil feeding device of band.
Background technique
Current chain saw generally include engine, hand starter, fuel tank, carburetor and connect carburetor oil inlet with
The inflow pipeline etc. of fuel tank.Hand starter mainly includes the composition such as operating crank, drawstring, driving wheel, return spring.
Chain saw starts engine using hand starter, and the carburetor of chain saw is the vacuum action generated in engine at present
Under, when the gasoline in fuel tank is extracted into carburetor；And before the engine is started connect the oil inlet and fuel tank of carburetor
It is full of air in inflow pipeline, when starting engine by hand starter, needs the vacuum action generated by engine
Lower to extract air in inflow pipeline out, this can extend the starting time of engine, so that increasing operator passes through hand starter
Start the labor intensity of engine.
On the other hand, when starting engine, operator pulls operating crank, and driving is tied with the driving wheel rotation for starting drawstring
Turn, driving wheel stirs the starting driver plate connecting with gasoline engine crank, drives the crankshaft of engine, makes to move on piston work, works as work
Plug is when being compressed to top, plug ignition, the combustion mixture burning expansion work done in cylinder, pushes that piston moves downward makes
Crankshaft rotation, so that engine is transitioned into working condition by stationary state.
When operator pulls operating crank, driving is tied with the driving wheel rotation for starting drawstring, drives the crankshaft of engine, make
During piston up moves, piston by compression engine cylinder body upper air, thus, passing through hand starter starting oil
When the engine of saw, operator is needed to provide biggish pulling force, starting chain saw for operator makes troubles.
Summary of the invention
The first object of the present invention is to provide for a kind of starting time that can shorten engine, to reduce operative employee
People starts the chain saw with pre- oil feeding device of the labor intensity of engine by hand starter.
Another object of present invention on the basis of the first purpose is to provide for a kind of chain saw of pre- oil feeding device of band, energy
Enough in the case where guaranteeing the engine work of chain saw, mitigates operator by hand starter and start starting for chain saw
The pulling force provided when machine reduces the working strength of starting chain saw, starts chain saw convenient for operator.
The technical scheme is that：
A kind of chain saw of the pre- oil feeding device of band including fuel tank, carburetor and connects the oil inlet of carburetor and the oil inlet pipe of fuel tank
Road, further includes pre- oil feeder, and pre- oil feeder includes elastic lubricating cup, the cup for connect with the rim of a cup of elastic lubricating cup simultaneously sealed elastic lubricating cup
The pedestal of mouth, the inlet port for being set on the base and being connected with the inner cavity of elastic lubricating cup and oil discharge outlet are arranged in inlet port
Oil sucting one-way valve and the oil extraction check valve that is arranged in oil discharge outlet, the inflow pipeline include preceding oil inlet pipe and rear oil inlet pipe,
Preceding oil inlet pipe connection fuel tank and inlet port, the oil inlet of rear oil inlet pipe connection oil discharge outlet and carburetor.
The chain saw with pre- oil feeding device of this programme can shorten the starting time of engine, so that it is logical to reduce operator
Cross the labor intensity of hand starter starting engine.
Preferably, further including chain saw shell, the pre- oil feeder is arranged on chain saw shell by pedestal.
Preferably, chain saw shell is equipped with pre- oil feeder installing port, the pedestal is equipped with and pre- oil feeder installing port
The buckle matched, pedestal are mounted on pre- oil feeder installing port by buckling clamping.This programme structure is convenient for pre- oil feeder
Actual installation.
Preferably, elastic lubricating cup is located at the outside of chain saw shell.This programme structure operates pre- oil feeder convenient for operator.
Preferably, further including the oil returning tube for connecting the oil return opening and fuel tank of carburetor.
Preferably, further including hand starter and setting in the intracorporal engine of chain saw shell, hand starter includes
Fixed handle, engine include engine cylinder body and the piston body that is arranged in engine cylinder body, further include self-adapting start pressure regulation
Device, self-adapting start regulator include the pressure regulation cylinder body being arranged on engine cylinder body, be arranged on chain saw shell and with
The coaxial adaptive cylinder body of pressure regulation cylinder body, is slidably arranged in certainly the annular inner limited block being arranged on adaptive cylinder body medial surface
The intracorporal sliding plunger of cylinder, setting are adapted in the intracorporal preload compressed spring of adaptive cylinder, setting in adaptive cylinder body lateral surface
On first interface with second interface, be arranged on the lateral surface of chain saw shell and led with what the medial surface of chain saw shell was connected
The connecting tube of third interface and connection first interface and third interface on axle sleeve, the lateral surface that guideway is set, institute
It states operating crank and is equipped with the plug axis that cooperate with guideway, plug axis is plugged in guideway, and plug axis is equipped with the
One sealing ring and the second sealing ring, the lateral surface for plugging axis is equipped with outer limited block, when outer limited block is against the end of guideway
When on face, third interface is between the first sealing ring and the second sealing ring；Close to the end face of the adaptive cylinder body of pressure regulation cylinder body
It is equipped with guide rod via hole, compressed spring is pre-tightened and guide rod via hole is located at the opposite sides of sliding plunger, first interface connects with second
Mouthful it is located at the same side of annular inner limited block, first interface and sliding plunger are located at the opposite sides of annular inner limited block, and second
Interface is equipped with check valve；Spark plug on the pressure regulation cylinder body and engine cylinder body is located at the same side of piston body, voltage regulation cylinder
First end opening of body is simultaneously connected with the inner cavity of engine cylinder body, and the second end of pressure regulation cylinder body is located at the outer of engine cylinder body
Side, the second end of pressure regulation cylinder body are equipped with the guide through hole coaxial with pressure regulation cylinder body, on the lateral surface of pressure regulation cylinder body and are located at and start
The outside of machine cylinder body is equipped with gas vent, and sliding guide is equipped in guide through hole, and the first end of sliding guide is equipped with end face seal valve
Block, the engine cylinder body that end face seal valve block is located at it is interior intracavitary, the end face of the first end of pressure regulation cylinder body is to seal spherical surface surely, is held
Face seals valve block equipped with the dynamic sealing spherical surface with fixed sealing mating spherical surfaces, and the second end of sliding guide passes through guide rod via hole and supports
On the end face of sliding plunger.
The chain saw with pre- oil feeding device of this programme can mitigate in the case where guaranteeing the engine work of chain saw
Operator starts the pulling force provided when the engine of chain saw by hand starter, reduces the working strength of starting chain saw, just
Start chain saw in operator.
Preferably, the outside on the lateral surface of sliding guide and positioned at pressure regulation cylinder body is equipped with guide rod limited block, work as guide rod
When limited block is against on the end face of the second end of pressure regulation cylinder body, spherical surface is sealed surely and is separated with dynamic sealing spherical surface.
Preferably, first interface is located at the outside of chain saw shell, connecting tube is located at the outside of chain saw shell.This programme knot
Structure repairs convenient for the installation and removal of connecting tube.
Preferably, second interface is located at the outside of chain saw shell.This programme structure is convenient for the installation and removal of check valve
Maintenance.
Preferably, sealing spherical surface is concave spherical surely, dynamic sealing spherical surface is raised spherical surface.
The beneficial effects of the invention are as follows：
First, the starting time of engine can be shortened, engine is started by hand starter to reduce operator
Labor intensity.
Second, operator can be mitigated by pulling starting in the case where guaranteeing the engine work of chain saw
Device starts the pulling force provided when the engine of chain saw, reduces the working strength of starting chain saw, starts chain saw convenient for operator.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the chain saw of the invention with pre- oil feeding device.
Fig. 2 is a kind of partial structural diagram after the chain saw shell removal of the chain saw of the invention with pre- oil feeding device.
Fig. 3 is a kind of structural schematic diagram of pre- oil feeder of the invention.
Fig. 4 is the bottom view of Fig. 3.
Fig. 5 is a kind of partial profile structure of the chain saw of the invention with pre- oil feeding device.
Fig. 6 is the partial enlarged view in Fig. 5 at A.
Fig. 7 is a kind of partial profile structure at guideway of the invention.
In figure：
Chain saw shell 1.1；
Operating crank 1.2 starts drawstring 1.2.0, plugs axis 1.2.1, the first sealing ring 1.2.2, the second sealing ring 1.2.3, outside
Limited block 1.2.4；
Fuel tank 1.3；
Carburetor 1.4；
Inflow pipeline 1.5, preceding oil inlet pipe 1.51, rear oil inlet pipe 1.52；
Oil returning tube 1.6；
Pre- oil feeder 2, elastic lubricating cup 2.1, pedestal 2.2, inlet port 2.3, oil discharge outlet 2.4, buckle 2.5；
Self-adapting start regulator 3, pressure regulation cylinder body 3.0, connecting tube 3.01, adaptive cylinder body 3.1, guide rod via hole 3.2, sliding
Piston 3.3, first interface 3.4, preload compressed spring 3.5, annular inner limited block 3.6, second interface 3.7, check valve 3.8 are led
To through-hole 3.9, sliding guide 3.10, end face seal valve block 3.11, dynamic sealing spherical surface 3.12 seals spherical surface 3.13, gas vent surely
3.14, guide rod limited block 3.15, guideway 3.16, third interface 3.17；
Engine cylinder body 4.1, piston body 4.2, spark plug 4.3.
Specific embodiment
Present invention is further described in detail with specific embodiment with reference to the accompanying drawing：
As shown in Figure 1 and Figure 2, the chain saw of the pre- oil feeding device of a kind of band, including chain saw shell 1.1, hand starter, adaptively open
The intracorporal engine of chain saw shell, fuel tank 1.3, carburetor 1.4, the oil inlet for connecting carburetor and oil is arranged in dynamic regulator 3
The oil returning tube 1.6 and pre- oil feeder 2 of the inflow pipeline 1.5 of case, the oil return opening for connecting carburetor and fuel tank.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, pre- oil feeder 2 is connect simultaneously including elastic lubricating cup 2.1, with the rim of a cup of elastic lubricating cup
Envelope hide the pedestal 2.2 of the rim of a cup of elastic lubricating cup, the inlet port 2.3 for being set on the base and being connected with the inner cavity of elastic lubricating cup with
Oil discharge outlet 2.4, the oil sucting one-way valve being arranged in inlet port and the oil extraction check valve being arranged in oil discharge outlet.The cup of elastic lubricating cup
Mouth is tightly connected with pedestal.
Pre- oil feeder is arranged on chain saw shell by pedestal.Chain saw shell is equipped with pre- oil feeder installing port.On pedestal
Equipped with the buckle 2.5 matched with pre- oil feeder installing port, pedestal is mounted on pre- oil feeder installing port by buckling clamping.Bullet
Property lubricating cup is located at the outside of chain saw shell.
Inflow pipeline includes preceding oil inlet pipe 1.51 and rear oil inlet pipe 1.52.Preceding oil inlet pipe connection fuel tank and inlet port, it is laggard
The oil inlet of oil pipe connection oil discharge outlet and carburetor.
As shown in Figure 1, shown in Figure 5, the engine of the present embodiment is petrol engine.Engine includes engine cylinder body 4.1, sets
The spark plug 4.3 setting the piston body 4.2 in engine cylinder body and being arranged on engine cylinder body.
As shown in Fig. 5, Fig. 6, Fig. 7, self-adapting start regulator includes the pressure regulation cylinder body being arranged on engine cylinder body
3.0, the adaptive cylinder body 3.1 coaxial on chain saw shell and with pressure regulation cylinder body is set, is arranged on adaptive cylinder body medial surface
Annular inner limited block 3.6, be slidably arranged in the intracorporal sliding plunger 3.3 of adaptive cylinder, setting it is intracorporal pre- in adaptive cylinder
Tight compressed spring 3.5, the first interface 3.4 being arranged on adaptive cylinder body lateral surface and second interface 3.7 are arranged in chain saw shell
The guideway 3.16 that is connected on the lateral surface of body and with the medial surface of chain saw shell is arranged on the lateral surface of guideway
Third interface 3.17 and connect first interface and third interface connecting tube 3.01.First interface is located at the outer of chain saw shell
Side, connecting tube are located at the outside of chain saw shell.Second interface is located at the outside of chain saw shell.Guideway and chain saw shell are one
Body injection molding.
Hand starter includes operating crank 1.2, starts drawstring 1.2.0 and driving wheel.Operating crank is equipped with and guiding
The plug axis 1.2.1 of axle sleeve cooperation.The lateral surface for plugging axis is equipped with outer limited block 1.2.4.Plug axis is plugged in guideway
It is interior.The end face edge for plugging axis is equipped with chamfering.The one end for starting drawstring is connected by plug axis with operating crank, and drawstring is started
One end with plug axis end be connected.
It plugs axis and is equipped with the first sealing ring 1.2.2 and the second sealing ring 1.2.3.When outer limited block is against guideway
When on end face, third interface is between the first sealing ring and the second sealing ring.
End face close to the adaptive cylinder body of pressure regulation cylinder body is equipped with guide rod via hole 3.2.Pre-tighten compressed spring and guide rod mistake
Hole is located at the opposite sides of sliding plunger.It pre-tightens compressed spring one end to be against on sliding plunger, pre-tightens the other end of compressed spring
It is against on the inner face of adaptive cylinder body.
First interface is connected with the inner cavity of adaptive cylinder body with second interface.First interface and second interface are located at ring
The same side of shape inner limited block.First interface and sliding plunger are located at the opposite sides of annular inner limited block.It is set in second interface
There is check valve 3.8, check valve allows the adaptive intracorporal gas of cylinder to be discharged outward by second interface.
Spark plug on pressure regulation cylinder body and engine cylinder body is located at the same side of piston body.First end opening of pressure regulation cylinder body
And it is connected with the inner cavity of engine cylinder body.The second end of pressure regulation cylinder body is located at the outside of engine cylinder body, and the of pressure regulation cylinder body
Two ends are equipped with the guide through hole 3.9 coaxial with pressure regulation cylinder body.Outside on the lateral surface of pressure regulation cylinder body and positioned at engine cylinder body
Equipped with gas vent 3.14, gas vent is connected with the inner cavity of pressure regulation cylinder body.
Sliding guide 3.10 is equipped in guide through hole.The first end of sliding guide passes through the first end opening of pressure regulation cylinder body.
The first end of sliding guide is equipped with end face seal valve block 3.11.The engine cylinder body that end face seal valve block is located at it is interior intracavitary.It adjusts
The end face of the first end of cylinder pressure body is to seal spherical surface 3.13 surely, and sealing spherical surface surely is concave spherical.End face seal valve block is equipped with
With the dynamic sealing spherical surface 3.12 of fixed sealing mating spherical surfaces, dynamic sealing spherical surface is raised spherical surface.The second end of sliding guide is passed through and is led
Bar via hole is simultaneously against on the end face of sliding plunger.
On the lateral surface of sliding guide and it is located at the outside of pressure regulation cylinder body equipped with guide rod limited block 3.15.Guide rod limited block with
End face seal valve block is located at the opposite sides of pressure regulation cylinder body.
When guide rod limited block is against on the end face of the second end of pressure regulation cylinder body, spherical surface and dynamic sealing spherical surface point are sealed surely
From.
The specific start-up course of the chain saw with pre- oil feeding device of the present embodiment is as follows：
First, by pressing compression elasticity lubricating cup, entered in the cavity of lubricating cup by preceding oil inlet pipe from oil pumping in fuel tank, and by laggard
By in the oil injection carburetor in lubricating cup, extra oil is returned in fuel tank oil pipe by oil returning tube in carburetor, in this way can be with
Before starting engine, in advance by the air in inflow pipeline and carburetor, oil is made to be pre-filled with inflow pipeline and inflow
In oily device, starting time of engine can be so effectively shortened, so that reducing operator passes through hand starter starting hair
The labor intensity of motivation.
Second, operator first pulls out operating crank, separates plug axis with guideway.When plug axis and guideway
After separation, under the action of pre-tightening compressed spring, sliding plunger will be mobile toward guide rod via hole, meanwhile, extraneous air passes through the
Three interfaces, connecting tube and first interface enter in adaptive cylinder body；
During sliding plunger will be mobile toward guide rod via hole, sliding guide will be driven to eject together, until guide rod limited block
Until being against on the end face of the second end of pressure regulation cylinder body, so that fixed sealing spherical surface be made to separate with dynamic sealing spherical surface；
Third, operator pull operating crank, and driving is tied with the driving wheel rotation for starting drawstring, drives the crankshaft of engine, make
Piston body up moves, compression piston upper air；It is living since fixed sealing spherical surface is separated with dynamic sealing spherical surface during this
The air in square engine cylinder body will pass through the first end opening, pressure regulation inner chamber of cylinder block and the row of exhausting-gas hole of pressure regulation cylinder body beyond the Great Wall
Out, to greatly reduce the air compression ratio of engine cylinder body during this, pass through to effectively mitigate operator
Hand starter starts the pulling force provided when the engine of chain saw, further decreases the working strength of starting chain saw, convenient for operation
Person starts chain saw；
When piston body is compressed to top, plug ignition, cylinder interior gas detonation, pressure increases suddenly in engine cylinder body
Add, force and moved outside end face seal valve block and sliding guide, contacts fixed sealing spherical surface with dynamic sealing ball face sealing, to guarantee to send out
The normal work of motivation.
In addition, sliding guide will drive sliding plunger that will move toward annular inner limited block during shifting outside sliding guide
Dynamic, intracorporal gas of adaptive cylinder can be discharged by second interface and check valve during this.
After engine start, the plug axis of operating crank is inserted into guideway by operator, and supports outer limited block
On the end face of guideway, in this way, after the engine started, sliding plunger will remain stationary, make fixed sealing spherical surface with move it is close
Blocking face keeps in sealing contact, to guarantee the normal work of engine.
Thus, the gasoline chain saw of the present embodiment can mitigate behaviour in the case where guaranteeing the engine work of chain saw
The pulling force provided when worker starts the engine of chain saw by hand starter is provided, reduces the working strength of starting chain saw, is convenient for
Operator starts chain saw.
Claims (8)
1. a kind of chain saw of the pre- oil feeding device of band, the oil inlet of oil inlet and fuel tank including fuel tank, carburetor and connection carburetor
Pipeline, characterized in that further include pre- oil feeder, pre- oil feeder includes elastic lubricating cup, with the rim of a cup of elastic lubricating cup connect and seal
The pedestal of the rim of a cup of elastic lubricating cup, the inlet port for being set on the base and being connected with the inner cavity of elastic lubricating cup and oil discharge outlet are set
The oil extraction check valve setting the oil sucting one-way valve in inlet port and being arranged in oil discharge outlet,
The inflow pipeline includes preceding oil inlet pipe and rear oil inlet pipe, and preceding oil inlet pipe connection fuel tank and inlet port, rear oil inlet pipe connect
The oil inlet of oil discharge outlet and carburetor.
2. the chain saw of the pre- oil feeding device of band according to claim 1, characterized in that further include chain saw shell, the preadmission
Oily device is arranged on chain saw shell by pedestal.
3. the chain saw of the pre- oil feeding device of band according to claim 2, characterized in that the chain saw shell is equipped with pre- oil inlet
Device installing port, the pedestal are equipped with the buckle matched with pre- oil feeder installing port, and pedestal is mounted on pre- by buckle clamping
On oil feeder installing port.
4. the chain saw of the pre- oil feeding device of band according to claim 2 or 3, characterized in that the elasticity lubricating cup is located at chain saw
The outside of shell.
5. the chain saw of the pre- oil feeding device of band according to claim 1, characterized in that further include the oil return opening for connecting carburetor
With the oil returning tube of fuel tank.
6. the chain saw of the pre- oil feeding device of band according to claim 1, characterized in that further include that hand starter and setting exist
The intracorporal engine of chain saw shell, hand starter include operating crank, and engine includes engine cylinder body and is arranged in engine
The intracorporal piston body of cylinder, characterized in that further include self-adapting start regulator, self-adapting start regulator includes that setting exists
Pressure regulation cylinder body on engine cylinder body, be arranged on chain saw shell and the adaptive cylinder body coaxial with pressure regulation cylinder body, setting from
The annular inner limited block on cylinder body medial surface is adapted to, the intracorporal sliding plunger of adaptive cylinder is slidably arranged in, is arranged adaptive
Cylinder is intracorporal to be pre-tightened compressed spring, the first interface being arranged on adaptive cylinder body lateral surface and second interface, is arranged in chain saw
The guideway that is connected on the lateral surface of shell and with the medial surface of chain saw shell is arranged on the lateral surface of guideway
Third interface and the connecting tube for connecting first interface and third interface,
The operating crank is equipped with the plug axis cooperated with guideway, and plug axis is plugged in guideway, plugs on axis
Equipped with the first sealing ring and the second sealing ring, the lateral surface of the plug axis is equipped with outer limited block, leads when outer limited block is against
When on the end face of axle sleeve, third interface is between the first sealing ring and the second sealing ring；
It is equipped with guide rod via hole close to the end face of the adaptive cylinder body of pressure regulation cylinder body, preload compressed spring and guide rod via hole, which are located at, to be slided
The opposite sides of piston, first interface and second interface are located at the same side of annular inner limited block, and first interface and sliding are lived
Plug is located at the opposite sides of annular inner limited block, and second interface is equipped with check valve；
Spark plug on the pressure regulation cylinder body and engine cylinder body is located at the same side of piston body, the first end opening of pressure regulation cylinder body
And be connected with the inner cavity of engine cylinder body, the second end of pressure regulation cylinder body is located at the outside of engine cylinder body, and the of pressure regulation cylinder body
Two ends are equipped with the guide through hole coaxial with pressure regulation cylinder body, on the lateral surface of pressure regulation cylinder body and are located at the outside of engine cylinder body and are equipped with
Gas vent, guide through hole is interior to be equipped with sliding guide, and the first end of sliding guide is equipped with end face seal valve block, end face seal valve block position
In engine cylinder body in it is intracavitary, the end face of the first end of pressure regulation cylinder body is to seal spherical surface surely, and end face seal valve block is equipped with
With the dynamic sealing spherical surface of fixed sealing mating spherical surfaces, the second end of sliding guide passes through guide rod via hole and is against the end face of sliding plunger
On.
7. the chain saw of the pre- oil feeding device of band according to claim 6, characterized in that on the lateral surface of the sliding guide simultaneously
It is equipped with guide rod limited block positioned at the outside of pressure regulation cylinder body, when guide rod limited block is against on the end face of the second end of pressure regulation cylinder body,
Surely sealing spherical surface is separated with dynamic sealing spherical surface.
8. the chain saw of the pre- oil feeding device of band according to claim 6, characterized in that the first interface is located at chain saw shell
Outside, connecting tube is located at the outside of chain saw shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810402222.4A CN108843472B (en) | 2018-04-28 | 2018-04-28 | Chain saw with pre-oil feeding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810402222.4A CN108843472B (en) | 2018-04-28 | 2018-04-28 | Chain saw with pre-oil feeding device |
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| Publication Number | Publication Date |
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| CN108843472A true CN108843472A (en) | 2018-11-20 |
| CN108843472B CN108843472B (en) | 2020-01-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810402222.4A Active CN108843472B (en) | 2018-04-28 | 2018-04-28 | Chain saw with pre-oil feeding device |
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| JP4104942B2 (en) * | 2002-09-17 | 2008-06-18 | 株式会社共立 | Fuel injection device for direct injection internal combustion engine |
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| CN104033297A (en) * | 2014-05-30 | 2014-09-10 | 杨锋 | Chain saw engine fuel oil thickening system |
| CN208281099U (en) * | 2018-04-28 | 2018-12-25 | 浙江中力工具制造有限公司 | A kind of chain saw of the pre- oil feeding device of band |
-
2018
- 2018-04-28 CN CN201810402222.4A patent/CN108843472B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4104942B2 (en) * | 2002-09-17 | 2008-06-18 | 株式会社共立 | Fuel injection device for direct injection internal combustion engine |
| CN2874028Y (en) * | 2005-06-01 | 2007-02-28 | 浙江中马园林机器有限公司 | Pressure reducing start device for engine |
| JP2007315254A (en) * | 2006-05-24 | 2007-12-06 | Kioritz Corp | Fuel-air mixture generating device |
| CN101886593A (en) * | 2010-07-14 | 2010-11-17 | 苏州市双马机电有限公司 | Quick-start oil circuit system for digital portable generator |
| CN104033297A (en) * | 2014-05-30 | 2014-09-10 | 杨锋 | Chain saw engine fuel oil thickening system |
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| Publication number | Publication date |
|---|---|
| CN108843472B (en) | 2020-01-03 |
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Denomination of invention: Chain saw with pre oil feeding device Effective date of registration: 20221031 Granted publication date: 20200103 Pledgee: Lishui Jinyun Sub branch of Zhejiang Tailong Commercial Bank Co.,Ltd. Pledgor: ZHEJIANG ZHONGLI TOOLS MANUFACTURE Co.,Ltd. Registration number: Y2022980020218 |
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