CN213116521U

CN213116521U - Starting assembly and gasoline engine

Info

Publication number: CN213116521U
Application number: CN202021637567.7U
Authority: CN
Inventors: 郭晓峰
Original assignee: Zhejiang Titan Machinery Co ltd
Current assignee: Zhejiang Titan Machinery Co ltd
Priority date: 2020-08-07
Filing date: 2020-08-07
Publication date: 2021-05-04
Anticipated expiration: 2030-08-07

Abstract

The present application relates to a starting assembly and a gasoline engine, wherein the starting assembly comprises: a starter case provided with an accommodating space; a starting rope wheel which is arranged in the accommodating space and is provided with a first surface and a second surface which are oppositely arranged; one end of the starting pull rope is connected with the starting rope wheel and is arranged in the accommodating space, and the other end of the starting pull rope extends out of the accommodating space; the first starting spring disc is arranged on the first surface and is connected with the starting rope wheel; the second starting spring disc is arranged on the second surface and is connected with the starting rope wheel; and the starting dial is arranged on the other side surface, opposite to the second surface, of the second starting spring disc and is connected with the second starting spring disc.

Description

Starting assembly and gasoline engine

Technical Field

The application relates to the field of power machinery, in particular to a starting assembly and a gasoline engine.

Background

The engine is a machine capable of converting other forms of energy into mechanical energy, and is a common device in daily life and industrial production. Specifically, the engine includes various forms such as a gasoline engine and a diesel engine.

The hand pull starter is mainly used for small gasoline engines and diesel engines, and is also called as a hand pull recoil starter. The structure mainly comprises two major parts, namely a starter and a starting dial. The starter mainly comprises a starter housing, a handle, a pull rope, a starting wheel, a return spring, a fastening screw and the like. The starting dial mainly comprises a starting dial body, a starting dial claw, a torsion spring and the like.

The working principle of the hand-pull starter is roughly as follows: the starting wheel with winding starting rope is driven to rotate by pulling the handle, and the starting wheel drives the starting driving plate connected to the crankshaft of gasoline engine to drive the crankshaft of engine and make the piston reciprocate. The engine is transited from the static state to the working state, the working cycle is automatically carried out, at the moment, the starting drive plate rotates along with the crankshaft of the engine, and the starting drive claw on the starting drive plate is separated from the starting wheel under the action of centrifugal force. The starting wheel compresses the return spring while shifting the starting dial, and after the starter starts the engine, the starting wheel, the pull rope, the pull handle and the like return to the initial position under the action of the return spring.

However, the handle of the hand pull starter commonly used in the prior art is mostly polypropylene plastic, and the starter housing is mostly metal. Thus, when the handle rebounds, it impacts the actuator casing, i.e., the actuator casing, making a loud sound. Impact can also cause damage or even breakage of the handle and the starter housing.

The oil can is generally arranged in the internal combustion engine, is an indispensable part and plays an important role in the internal combustion engine, the oil can of the existing internal combustion engine is provided with an oil inlet pipe and an oil outlet pipe and also provided with a one-way valve, in the using process, the negative pressure must be less than 0.8pa, but the requirement of the existing internal combustion engine cannot be met by controlling the one-way valve, the negative pressure value is unstable, the phenomenon of insufficient oil supply is easy to occur after long-time use, the service life is short, and frequent maintenance is needed.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of this application is to provide a starting subassembly and gasoline engine for solve the technical problem that exists among the prior art.

In a first aspect, an embodiment of the present invention provides a starting assembly, including: a starter case provided with an accommodating space; a starting rope wheel which is arranged in the accommodating space and is provided with a first surface and a second surface which are oppositely arranged; one end of the starting pull rope is connected with the starting rope wheel and is arranged in the accommodating space, and the other end of the starting pull rope extends out of the accommodating space; the first starting spring disc is arranged on the first surface and is connected with the starting rope wheel; the second starting spring disc is arranged on the second surface and is connected with the starting rope wheel; and the starting dial is arranged on the other side surface, opposite to the second surface, of the second starting spring disc and is connected with the second starting spring disc.

In one embodiment, the first starting spring disc, the starting rope wheel, the second starting spring disc and the starting dial are sequentially and coaxially arranged in the accommodating space.

In one embodiment, the method further comprises: and one end of the starting handle is connected with the other end of the starting pull rope extending out of the accommodating space.

In one embodiment, the starting dial is provided with blades on the other side surface opposite to the side surface contacted with the second starting spring disk.

In a second aspect, an embodiment of the present invention provides a gasoline engine, including: the cylinder mechanism comprises a cylinder body cover and a cylinder body arranged in the cylinder body cover; the air inlet mechanism is arranged on the cylinder body cover and is connected with the cylinder body; the fuel supply mechanism comprises a fuel tank and an oil pipe, the fuel tank is arranged at the bottom of the cylinder mechanism, and the oil pipe is connected with the air inlet mechanism; and the starting assembly of any one of the preceding embodiments, wherein the starting assembly is fixed to one side surface of the cylinder body.

In one embodiment, the cylinder block includes: a reaction chamber provided with a placing space; the crankshaft is arranged in the placing space; the connecting rod is arranged in the placing space and is connected with the crankshaft; the piston shaft is arranged in the placing space and is connected with the connecting rod; and the piston is arranged in the placing space and is connected with the piston shaft.

In one embodiment, the reaction chamber comprises: a crankshaft chamber in which the crankshaft and the connecting rod are disposed; the cylinder is connected with the crankshaft chamber, the cylinder is communicated with the inner cavity of the crankshaft chamber, and the piston is arranged in the cylinder.

In one embodiment, one end of the crankshaft extends out of the crank chamber and is connected to the starting assembly.

In one embodiment, the fuel tank is provided with an oil outlet; the oil pipe is inserted into the fuel tank from the oil outlet.

In an embodiment, the oil supply mechanism further includes: the first one-way valve is arranged at the oil outlet; and the second one-way valve is arranged at the oil outlet.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.

FIG. 1 is a schematic structural diagram of a gasoline engine according to an embodiment of the present disclosure;

FIG. 2 is a schematic structural diagram of a starting assembly according to an embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of a cylinder body according to an embodiment of the present disclosure;

fig. 4 is a schematic structural diagram of an oil supply mechanism according to an embodiment of the present application.

Icon: 1-a gasoline engine; 10-a cylinder mechanism; 110-cylinder block cover; 120-a cylinder body; 121-a reaction chamber; 122-a crankshaft; 123-connecting rod; 124-piston shaft; 125-a piston; 126-crank chamber; 127-a cylinder barrel; 20-an air intake mechanism; 30-an oil supply mechanism; 310-a fuel tank; 320-oil pipe; 330-a first one-way valve; 340-a second one-way valve; 350-oil outlet; 40-a starting assembly; 410-starting the casing; 420-a starting sheave; 430-start pull cord; 440-first start reed disc; 450-a second start spring disc; 460-start dial; 470-start handle; 480-blade.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

In the description of the present application, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the application usually place when using, and are only used for convenience in describing the present application and simplifying the description, but do not indicate or imply that the devices or elements that are referred to must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Referring to fig. 1, which is a schematic structural diagram of a gasoline engine 1 according to an embodiment of the present invention, the gasoline engine 1 includes: a cylinder mechanism 10, an intake mechanism 20, an oil supply mechanism 30, and a starting block 40.

The cylinder mechanism 10 includes a cylinder housing 110 and a cylinder body 120 disposed in the cylinder housing 110. The air intake mechanism 20 is provided on the cylinder housing 110 and connected to the cylinder body 120, the fuel supply mechanism 30 includes a fuel tank 310 and an oil pipe 320, the fuel tank 310 is provided at the bottom of the cylinder mechanism 10, the oil pipe 320 is connected to the air intake mechanism 20, and the starting block 40, the starting block 40 is fixed to one side of the cylinder body 120.

Referring to fig. 2, which is a schematic structural diagram of a starting assembly 40 according to an embodiment of the present invention, the starting assembly 40 includes: a starter housing 410, a starter sheave 420, a starter rope 430, a first starter spring coil 440, a second starter spring coil 450, and a starter dial 460.

Wherein the starter case 410 is provided with an accommodating space. The starting sheave 420 is disposed in the accommodating space and has a first surface and a second surface disposed opposite to each other. The starting cord 430 is connected at one end thereof to the starting sheave 420 and disposed in the accommodating space, and extends at the other end thereof out of the accommodating space. A first starting spring disc 440 is arranged on the first surface in connection with the starting sheave 420. A second start spring disc 450 is provided on the second surface in connection with the start sheave 420. The start dial 460 is provided on the other side of the second start spring plate 450 opposite the second surface, and is connected to the second start spring plate 450. The double-coil spring structure with the one-way bearing is adopted, so that the starting is more labor-saving.

In one embodiment, the first start spring disc 440, the start sheave 420, the second start spring disc 450, and the start dial 460 are coaxially arranged in sequence in the accommodating space.

In one embodiment, the starting assembly 40 further comprises: and a start handle 470, one end of the start handle 470 being connected to the other end of the start cord 430 extending out of the receiving space.

In one embodiment, the start dial 460 is provided with vanes 480 on the side opposite the side in contact with the second start spring plate 450. The vane 480 may reduce the sump temperature when the gasoline engine 1 is running.

Please refer to fig. 3, which is a schematic structural diagram of a cylinder body 120 according to an embodiment of the present invention, in which the cylinder body 120 includes: reaction chamber 121, crankshaft 122, connecting rod 123, piston shaft 124, and piston 125.

Wherein, the reaction chamber 121 is provided with a placing space. The crankshaft 122 is disposed in the placement space. The connecting rod 123 is disposed in the placement space and connected to the crankshaft 122. The piston shaft 124 is disposed in the placing space and connected to the connecting rod 123. The piston 125 is disposed in the placing space and is connected to the piston shaft 124.

In one embodiment, the reaction chamber 121 includes: a crank chamber 126, in which the crankshaft 122 and the connecting rod 123 are disposed; the cylinder 127 is connected to the crank chamber 126, the cylinder 127 communicates with the inner cavity of the crank chamber 126, and the piston 125 is disposed in the cylinder 127.

In one embodiment, one end of the crankshaft 122 extends out of the crank chamber 126 and is coupled to the starting assembly 40.

Please refer to fig. 4, which is a schematic structural diagram of an oil supply mechanism 30 according to an embodiment of the present application, wherein the oil supply mechanism 30 further includes: a first one-way valve 330 and a second one-way valve 340. An oil outlet 350 is arranged on the fuel tank 310, and the oil pipe 320 is inserted into the fuel tank 310 from the oil outlet 350.

In one embodiment, first check valve 330 is disposed at outlet port 350. And a second check valve 340 disposed at the oil outlet 350. On the basis that the oil tank is provided with only one main check valve, an auxiliary check valve is newly installed on one side of the oil inlet pipe 320 and one side of the oil outlet pipe 320, the two check valves work simultaneously, the negative pressure value is kept at a normal level, the maintenance rate of the oil can is reduced, the service life of the oil can is prolonged, and the running stability of the internal combustion engine is obviously improved.

It should be noted that the features of the embodiments in the present application may be combined with each other without conflict.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A starter assembly, comprising:

a starter case provided with an accommodating space;

the starting rope wheel is arranged in the accommodating space and provided with a first surface and a second surface which are oppositely arranged;

one end of the starting pull rope is connected with the starting rope wheel and is arranged in the accommodating space, and the other end of the starting pull rope extends out of the accommodating space;

the first starting spring disc is arranged on the first surface and is connected with the starting rope wheel;

the second starting spring disc is arranged on the second surface and is connected with the starting rope wheel;

and the starting dial is arranged on the other side surface, opposite to the second surface, of the second starting spring disc and is connected with the second starting spring disc.

2. The starting assembly of claim 1 wherein said first starting spring disc, said starting sheave, said second starting spring disc and said starting dial are disposed in sequential coaxial alignment in said receiving space.

3. The starting assembly of claim 1, further comprising:

and one end of the starting handle is connected with the other end of the starting pull rope extending out of the accommodating space.

4. The starter assembly of claim 1, wherein the starter dial is provided with vanes on a side opposite to a side in contact with the second starter spring disc.

5. A gasoline engine, comprising:

the cylinder mechanism comprises a cylinder body cover and a cylinder body arranged in the cylinder body cover;

the air inlet mechanism is arranged on the cylinder body cover and is connected with the cylinder body;

the fuel supply mechanism comprises a fuel tank and an oil pipe, the fuel tank is arranged at the bottom of the cylinder mechanism, and the oil pipe is connected with the air inlet mechanism; and the number of the first and second groups,

a starting assembly as claimed in any one of claims 1 to 4, which is secured to a side of the cylinder body.

6. The gasoline engine of claim 5, wherein the cylinder body comprises:

a reaction chamber provided with a placing space;

the crankshaft is arranged in the placing space;

the connecting rod is arranged in the placing space and is connected with the crankshaft;

the piston shaft is arranged in the placing space and is connected with the connecting rod;

and the piston is arranged in the placing space and is connected with the piston shaft.

7. The gasoline engine of claim 6, wherein the reaction chamber comprises:

a crankshaft chamber in which the crankshaft and the connecting rod are disposed;

the cylinder barrel is connected with the crankshaft chamber, the cylinder barrel is communicated with the inner cavity of the crankshaft chamber, and the piston is arranged in the cylinder barrel.

8. The gasoline engine of claim 7 wherein one end of the crankshaft extends out of the crankshaft chamber and is connected to the starting assembly.

9. The gasoline engine of claim 5, wherein an oil outlet is arranged on the fuel tank;

the oil pipe is inserted into the fuel tank from the oil outlet.

10. The gasoline engine of claim 9, wherein the oil supply mechanism further comprises:

the first one-way valve is arranged at the oil outlet;

and the second one-way valve is arranged at the oil outlet.