CN217421402U

CN217421402U - Spiral speed-changing starter for engine

Info

Publication number: CN217421402U
Application number: CN202220563926.1U
Authority: CN
Inventors: 李友国; 朱保锐
Original assignee: Zhejiang Lvli Machinery Co ltd
Current assignee: Zhejiang Lvli Machinery Co ltd
Priority date: 2022-03-15
Filing date: 2022-03-15
Publication date: 2022-09-13
Anticipated expiration: 2032-03-15

Abstract

A spiral speed-changing starter for engine is composed of pull disk, spiral slot made on the extension of pull disk, pull rope wound on spiral slot, and handle connected to pull rope. When the engine works, the pull rope is pulled outwards through the handle by hand, the rope drives the pull disc to rotate through friction force, and the pull disc drives the crankshaft of the engine to rotate through the connection of the connecting hole, so that the engine is started. The method of processing the spiral groove at the outer edge of the pull disc enables the pull rope not to be knotted easily, and enables the rotating speed at the moment of starting to be fast and the engine to be started easily by effectively utilizing inertia.

Description

Spiral speed-changing starter for engine

Technical Field

The utility model relates to an engine spiral variable speed starter.

Background

With the continuous development of industrial and agricultural technologies, the application of engines is more and more extensive, and especially some small engine units are suitable for outdoor operation, and the starting of the engine units is usually carried out in two modes, namely electric starting and hand starting. When the power of the engine is not large, the hand-starting is convenient to use. The existing hand starting method is to wind the pull rope in a large groove with the same diameter on the outer edge of the pull disc, so that the pull rope is sometimes knotted in the pull groove, and the phenomenon that an engine cannot be started due to the fact that the rotating speed is not fast at the moment of starting is caused.

SUMMERY OF THE UTILITY MODEL

To the weak point that exists in the above-mentioned problem, the utility model provides an engine spiral variable speed starter.

In order to achieve the above object, the utility model provides an engine spiral variable speed starter, including drawing the dish, processing is in draw the epitaxial helicla flute of dish, wind in stay cord on the helicla flute and with the handle that the stay cord is connected.

3. The engine helical speed starter of claim 1, wherein: a connecting hole (5) is machined in the center of the pull disc, and the connecting hole (5) is connected with the crankshaft.

4. An engine spiral speed change starter as claimed in claim 1 wherein: the cross-sectional shape of the spiral groove (3) is matched with that of the pull rope (4), and when the pull rope (4) is wound in the spiral groove (3), the highest position of the pull rope (4) is flush with the top of the spiral groove (3).

As a further improvement, the diameter of the spiral groove far away from the crankshaft connecting end is large, and the diameter of the part close to the crankshaft connecting end is small.

As a further improvement of the utility model, the center department of drawing the dish processes the connecting hole, the connecting hole is connected with the bent axle.

As a further improvement of the present invention, the cross-sectional shape of the spiral groove matches with the cross-sectional shape of the stay cord, and when the stay cord is wound in the spiral groove, the highest position of the stay cord is flush with the groove top of the spiral groove.

The utility model has the advantages that:

the method of processing the spiral groove at the outer edge of the pull disc enables the pull rope not to be knotted easily, and enables the rotating speed at the moment of starting to be fast and the engine to be started easily by effectively utilizing inertia.

Drawings

Fig. 1 is a front view and a side view of the spiral speed-changing starter of the engine of the present invention;

fig. 2 is a front view and a side view of a conventional spiral transmission starter for an engine.

In the figure: 1. a handle; 2. pulling the disc; 3. a helical groove; 4. pulling a rope; 5. and (4) connecting the holes.

Detailed Description

As shown in fig. 1-2, a spiral speed change starter for an engine according to an embodiment of the present invention includes a pull disc 2, a spiral groove 3 formed on the extension of the pull disc 2, a pull rope 4 wound on the spiral groove 3, and a handle 1 connected to the pull rope. The diameter of the spiral groove 3 far away from the connecting end of the crankshaft is large, and the diameter of the part close to the connecting end of the crankshaft is small. And a connecting hole 5 is processed at the center of the pull disc, and the connecting hole 5 is connected with the crankshaft. The cross-sectional shape of the spiral groove 3 matches the cross-sectional shape of the pull rope 4, and when the pull rope 4 is wound in the spiral groove 3, the highest position of the pull rope 4 is flush with the top of the spiral groove 3.

The method of processing the spiral groove at the outer edge of the pull disc enables the pull rope not to be knotted easily, and enables the rotating speed to be fast at the moment of starting and the engine to be started easily by effectively utilizing inertia.

When in specific use, the following description is made in conjunction with the accompanying drawings in order to facilitate understanding of the present invention;

the during operation, with the hand through the handle with the stay cord toward drawing outward, the rope drives the drawing dish through frictional force and rotates, because the helicla flute keeps away from the diameter of bent axle link big, it is little to be close a diameter with the bent axle link, when the stay cord is close minimum diameter department, when the engine is about to start promptly, because the diameter of helicla flute diminishes, the drawing dish promotes at the same moment effect speed reduction down, simultaneously through two effects of pivoted inertia for the drawing dish drives the bent axle and rotates fast, makes the engine start success probability improve greatly.

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

Claims

1. An engine spiral speed change starter, characterized by: the pull disc comprises a pull disc (2), a spiral groove (3) machined on the extension of the pull disc (2), a pull rope (4) wound on the spiral groove (3) and a handle (1) connected with the pull rope (4).

2. An engine helical speed starter as set forth in claim 1 wherein: the spiral groove (3) is large in diameter far away from the connecting end of the crankshaft, and small in diameter close to the connecting end of the crankshaft.

4. An engine helical speed starter as set forth in claim 1 wherein: the cross-sectional shape of the spiral groove (3) is matched with that of the pull rope (4), and when the pull rope (4) is wound in the spiral groove (3), the highest position of the pull rope (4) is flush with the top of the spiral groove (3).