CN108869136A - It is easy for workers to the gasoline chain saw of starting - Google Patents
It is easy for workers to the gasoline chain saw of starting Download PDFInfo
- Publication number
- CN108869136A CN108869136A CN201810403389.2A CN201810403389A CN108869136A CN 108869136 A CN108869136 A CN 108869136A CN 201810403389 A CN201810403389 A CN 201810403389A CN 108869136 A CN108869136 A CN 108869136A
- Authority
- CN
- China
- Prior art keywords
- cylinder body
- chain saw
- interface
- pressure regulation
- engine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N3/00—Other muscle-operated starting apparatus
- F02N3/02—Other muscle-operated starting apparatus having pull-cords
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
- F01L3/10—Connecting springs to valve members
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a kind of gasoline chain saws for being easy for workers to starting, it is desirable to provide a kind of to mitigate the gasoline chain saw of the pulling force provided when operator starts the engine of chain saw by hand starter in the case where guaranteeing the engine work of chain saw.It includes chain saw shell, hand starter, self-adapting start regulator and engine.Self-adapting start regulator includes the pressure regulation cylinder body being arranged on engine cylinder body, adaptive cylinder body on chain saw shell is set, annular inner limited block on adaptive cylinder body medial surface is set, it is slidably arranged in the intracorporal sliding plunger of adaptive cylinder, it is arranged in the intracorporal preload compressed spring of adaptive cylinder, first interface on adaptive cylinder body lateral surface and second interface are set, the guideway for being arranged on the lateral surface of chain saw shell and being connected with the medial surface of chain saw shell, third interface on the lateral surface of guideway is set and connects the connecting tube of first interface and third interface.
Description
Technical field
The present invention relates to a kind of chain saws, and in particular to a kind of gasoline chain saw for being easy for workers to starting.
Background technique
Current chain saw generallys use the engine of hand starter starting chain saw.Hand starter has mainly included starting
The composition such as handle, drawstring, driving wheel, return spring.In practical operation, operator pulls operating crank, and driving is tied with starting drawstring
Driving wheel rotation, driving wheel stirs starting driver plate connect with gasoline engine crank, drives the crankshaft of engine, makes on piston work
Movement, when piston is compressed to top, plug ignition, the combustion mixture burning expansion work done in cylinder pushes piston
Moving downward rotates crankshaft, 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
It, can be in the hair for guaranteeing chain saw the purpose of the invention is to provide a kind of gasoline chain saw for being easy for workers to starting
In the case that motivation works normally, mitigate the pulling force provided when operator starts the engine of chain saw by hand starter,
The working strength of starting chain saw is reduced, starts chain saw convenient for operator.
The technical scheme is that：
A kind of gasoline chain saw being easy for workers to starting, including chain saw shell, hand starter and setting are in the intracorporal hair of chain saw shell
Motivation, hand starter include operating crank, and engine includes engine cylinder body and the piston body that is arranged in engine cylinder body,
Further include self-adapting start regulator, self-adapting start regulator include the pressure regulation cylinder body being arranged on engine cylinder body,
The adaptive cylinder body coaxial on chain saw shell and with pressure regulation cylinder body is set, in the annular being arranged on adaptive cylinder body medial surface
Limited block is slidably arranged in the intracorporal sliding plunger of adaptive cylinder, setting in the intracorporal preload compressed spring of adaptive cylinder, setting
On adaptive cylinder body lateral surface first interface and second interface, chain saw shell is set lateral surface on and with chain saw shell
The medial surface guideway being connected, the third interface that is arranged on the lateral surface of guideway and connection first interface and the
The connecting tube of three interfaces, the operating crank are equipped with the plug axis cooperated with guideway, and plug axis is plugged in guideway
Interior, plug axis is equipped with the first sealing ring and the second sealing ring；It is equipped with and leads close to the end face of the adaptive cylinder body of pressure regulation cylinder body
Bar via hole, pre-tightens compressed spring and guide rod via hole is located at the opposite sides of sliding plunger, and 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, set in second interface
There is check valve；Spark plug on the pressure regulation cylinder body and engine cylinder body is located at the same side of piston body, and the first of pressure regulation cylinder body
End opening is simultaneously connected with the inner cavity of engine cylinder body, and the second end of pressure regulation cylinder body is located at the outside of engine cylinder body, voltage regulation cylinder
The second end of body is equipped with the guide through hole coaxial with pressure regulation cylinder body, on the lateral surface of pressure regulation cylinder body and is located at the outer of engine cylinder body
Side 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, end face seal
The engine cylinder body that 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, end face seal valve block surely
It is equipped with the dynamic sealing spherical surface with fixed sealing mating spherical surfaces, the second end of sliding guide passes through guide rod via hole and is against sliding plunger
End face on.
This programme be easy for workers to starting gasoline chain saw can guarantee chain saw engine work in the case where,
Mitigate the pulling force provided when operator starts the engine of chain saw by hand starter, the work for reducing starting chain saw is strong
Degree starts chain saw convenient for operator.
Preferably, the lateral surface of plug axis is equipped with outer limited block, when on the end face that outer limited block is against guideway
When, third interface is between the first sealing ring and the second sealing ring.
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.
Preferably, guideway and chain saw shell are integrated injection molding.
Preferably, the end face edge of plug axis is equipped with chamfering.
The beneficial effects of the invention are as follows：Operative employee can be mitigated in the case where guaranteeing the engine work of chain saw
People starts the pulling force provided when the engine of chain saw by hand starter, reduces the working strength of starting chain saw, convenient for operation
Person starts chain saw.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the gasoline chain saw for being easy for workers to starting of the invention.
Fig. 2 is a kind of partial profile structure of the gasoline chain saw for being easy for workers to starting of the invention.
Fig. 3 is the partial enlarged view in Fig. 2 at A.
Fig. 4 is a kind of partial profile structure at guideway of the invention.
In figure：
Chain saw shell 1；
Operating crank 2 starts drawstring 2.0, plugs axis 2.1, the first sealing ring 2.2, the second sealing ring 2.3, outer limited block 2.4；
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 plunger 3.3, first interface 3.4,
Pre-tighten compressed spring 3.5, annular inner limited block 3.6, second interface 3.7, check valve 3.8, guide 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 3.14, guide rod limited block surely
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, a kind of gasoline chain saw being easy for workers to starting, including it is chain saw shell 1, hand starter, adaptive
Start regulator 3 and is arranged in the intracorporal engine of chain saw shell.The engine of the present embodiment is petrol engine.Engine
Including engine cylinder body 4.1, the piston body being arranged in engine cylinder body 4.2 and the spark plug being arranged on engine cylinder body
4.3。
As shown in Figure 2, Figure 3, Figure 4, 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 2, starts drawstring 2.0 and driving wheel.Operating crank is equipped with and guideway
The plug axis 2.1 of cooperation.The lateral surface for plugging axis is equipped with outer limited block 2.4.Plug axis is plugged in guideway.Plug axis
End face edge be equipped with chamfering.The one end for starting drawstring is connected by plug axis with operating crank, start drawstring one end and
The end of plug axis is connected.
It plugs axis and is equipped with the first sealing ring 2.2 and the second sealing ring 2.3.When outer limited block is against the end face of guideway
When upper, 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 gasoline chain saw for being easy for workers to starting of the present embodiment is as follows：
First, operator first pulls out operating crank, separates plug axis with guideway.When plug axis is separated with guideway
Afterwards, under the action of pre-tightening compressed spring, sliding plunger will be mobile toward guide rod via hole, meanwhile, extraneous air is connect by third
Mouth, 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；
Second, operator pulls 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；
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 gasoline chain saw for being easy for workers to starting, including chain saw shell, hand starter and setting are intracorporal in chain saw shell
Engine, hand starter include operating crank, and engine includes engine cylinder body and the piston that is arranged in engine cylinder body
Body, characterized in that further include self-adapting start regulator, self-adapting start regulator includes being arranged on engine cylinder body
Pressure regulation cylinder body, be arranged on chain saw shell and the adaptive cylinder body coaxial with pressure regulation cylinder body, be arranged on the inside of adaptive cylinder body
Annular inner limited block on face is slidably arranged in the intracorporal sliding plunger of adaptive cylinder, is arranged in the intracorporal preload of adaptive cylinder
Compressed spring, the first interface being arranged on adaptive cylinder body lateral surface and second interface, the lateral surface that chain saw shell is set
Upper and the guideway being connected with the medial surface of chain saw shell, the third interface that is arranged on the lateral surface of guideway and company
The connecting tube of first interface Yu third interface is connect,
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；
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.
2. the gasoline chain saw according to claim 1 for being easy for workers to starting, characterized in that on the lateral surface of the plug axis
Equipped with outer limited block, when outer limited block is against on the end face of guideway, third interface is located at the first sealing ring and second close
Between seal.
3. the gasoline chain saw according to claim 1 for being easy for workers to starting, characterized in that the lateral surface of the sliding guide
It goes up and the outside for being located at pressure regulation cylinder body is equipped with guide rod limited block, when guide rod limited block is against on the end face of the second end of pressure regulation cylinder body
When, spherical surface is sealed surely to be separated with dynamic sealing spherical surface.
4. the gasoline chain saw according to claim 1 or 2 or 3 for being easy for workers to starting, characterized in that the first interface position
In the outside of chain saw shell, connecting tube is located at the outside of chain saw shell.
5. the gasoline chain saw according to claim 1 or 2 or 3 for being easy for workers to starting, characterized in that the second interface position
In the outside of chain saw shell.
6. the gasoline chain saw according to claim 1 or 2 or 3 for being easy for workers to starting, characterized in that described to seal spherical surface surely
For concave spherical, dynamic sealing spherical surface is raised spherical surface.
7. it is according to claim 1 or 2 or 3 be easy for workers to starting gasoline chain saw, characterized in that the guideway with
Chain saw shell is integrated injection molding.
8. the gasoline chain saw according to claim 1 or 2 or 3 for being easy for workers to starting, characterized in that the end of the plug axis
Face edge is equipped with chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810403389.2A CN108869136B (en) | 2018-04-28 | 2018-04-28 | Gasoline chain saw easy to start manually |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810403389.2A CN108869136B (en) | 2018-04-28 | 2018-04-28 | Gasoline chain saw easy to start manually |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108869136A true CN108869136A (en) | 2018-11-23 |
| CN108869136B CN108869136B (en) | 2020-08-04 |
Family
ID=64326893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810403389.2A Active CN108869136B (en) | 2018-04-28 | 2018-04-28 | Gasoline chain saw easy to start manually |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108869136B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111993497A (en) * | 2020-08-06 | 2020-11-27 | 浙江中力工具制造有限公司 | Pressure-releasing starting device of gasoline chain saw |
| CN112031975A (en) * | 2020-08-06 | 2020-12-04 | 浙江中力工具制造有限公司 | Gasoline chain saw |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS5373325U (en) * | 1976-11-22 | 1978-06-19 | ||
| JPH01152064U (en) * | 1988-04-12 | 1989-10-19 | ||
| JPH0592470U (en) * | 1992-05-18 | 1993-12-17 | 株式会社共立 | Engine decompression device |
| JPH06207507A (en) * | 1993-01-11 | 1994-07-26 | Mitsubishi Heavy Ind Ltd | Automatic decompressor device for engine |
| JPH0649900Y2 (en) * | 1989-04-27 | 1994-12-14 | 株式会社共立 | Internal coil decoupling starter pressure reduction device for recoil starter |
| EP0799992A1 (en) * | 1996-03-26 | 1997-10-08 | Ishikawajima Shibaura Machinery Co., Ltd. | Decompressor for an internal combustion engine |
| CN103362590A (en) * | 2013-05-08 | 2013-10-23 | 浙江日晟农林科技有限公司 | Engine starting pressure relief mechanism |
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2018
- 2018-04-28 CN CN201810403389.2A patent/CN108869136B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5373325U (en) * | 1976-11-22 | 1978-06-19 | ||
| JPH01152064U (en) * | 1988-04-12 | 1989-10-19 | ||
| JPH0649900Y2 (en) * | 1989-04-27 | 1994-12-14 | 株式会社共立 | Internal coil decoupling starter pressure reduction device for recoil starter |
| JPH0592470U (en) * | 1992-05-18 | 1993-12-17 | 株式会社共立 | Engine decompression device |
| US5361738A (en) * | 1992-05-18 | 1994-11-08 | Kioritz Corporation | Decompression device for an engine |
| JPH06207507A (en) * | 1993-01-11 | 1994-07-26 | Mitsubishi Heavy Ind Ltd | Automatic decompressor device for engine |
| EP0799992A1 (en) * | 1996-03-26 | 1997-10-08 | Ishikawajima Shibaura Machinery Co., Ltd. | Decompressor for an internal combustion engine |
| CN103362590A (en) * | 2013-05-08 | 2013-10-23 | 浙江日晟农林科技有限公司 | Engine starting pressure relief mechanism |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111993497A (en) * | 2020-08-06 | 2020-11-27 | 浙江中力工具制造有限公司 | Pressure-releasing starting device of gasoline chain saw |
| CN112031975A (en) * | 2020-08-06 | 2020-12-04 | 浙江中力工具制造有限公司 | Gasoline chain saw |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108869136B (en) | 2020-08-04 |
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Denomination of invention: Gasoline chain saw easy to start manually Effective date of registration: 20221031 Granted publication date: 20200804 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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