阅读说明：本技术 一种反冲启动器 (Recoil starter ) 是由 曹炎廷 唐德胜 唐前富 肖琅 于 2020-05-18 设计创作，主要内容包括：本发明公开了一种反冲启动器,包括启动拉盘、拉盘网罩、驱动凸轴、驱动导向板,其特征在于：所述拉盘网罩上具有中心轴,所述中心轴为阶梯轴,所述启动拉盘可旋转的方式套设于所述中心轴的第一阶梯段上,所述驱动凸轴一端铰接于所述启动拉盘上,其另一端可摆动的限位于所述启动拉盘的限位槽内,所述驱动导向板套设于所述中心轴的第二阶梯段上,所述驱动导向板具有弹性脚,所述驱动导向板通过所述弹性脚与所述中心轴的第一阶梯段的端面摩擦接触,所述驱动导向板外侧的所述第二阶梯段上设置有用于将所述驱动导向板向所述中心轴的第一阶梯段的端面压紧的蝶形垫片。本发明的有益效果包括：结构简单,安装简单,节约制造成本。(The invention discloses a recoil starter, which comprises a starting pull disc, a pull disc mesh enclosure, a driving convex shaft and a driving guide plate, and is characterized in that: the pull disc net cover is provided with a central shaft, the central shaft is a stepped shaft, the starting pull disc is sleeved on a first step section of the central shaft in a rotatable mode, one end of the driving convex shaft is hinged to the starting pull disc, the other end of the driving convex shaft is limited in a limiting groove of the starting pull disc in a swinging mode, the driving guide plate is sleeved on a second step section of the central shaft, the driving guide plate is provided with an elastic foot and is in friction contact with the end face of the first step section of the central shaft through the elastic foot, and a butterfly gasket used for compressing the driving guide plate to the end face of the first step section of the central shaft is arranged on the second step section outside the driving guide plate. The beneficial effects of the invention include: simple structure, the installation is simple, practices thrift manufacturing cost.)

1. The utility model provides a recoil starter, draws a set (1), draws a set screen panel (2), drive protruding axle (3), drive deflector (4) including the start-up, its characterized in that: have center pin (21) on drawing a set screen panel (2), center pin (21) are the step shaft, start drawing set (1) rotatable mode cover and locate on first step (21a) of center pin (21), drive protruding axle (3) one end articulate in on starting drawing set (1), its other end wobbling spacing in start in the spacing groove (11) of drawing set (1), drive deflector (4) cover is located on second step (21b) of center pin (21), drive deflector (4) have a plurality of elasticity feet (41), drive deflector (4) pass through elasticity foot (41) with the terminal surface frictional contact of first step (21a) of center pin (21), be provided with on the second step (21b) in the drive deflector (4) outside and be used for with drive deflector (4) to the terminal surface pressure of first step (21a) of center pin (21) presses A tight limit block (6).

2. A recoil starter according to claim 1, wherein: a flat pad (5) is arranged between the elastic foot (41) and the end surface of the first step section (21a) of the central shaft (21).

3. A recoil starter according to claim 1, wherein: the number of drive protruding axle (3) is a plurality of, and in central symmetry arranges on the start-up drawing dish (1), every drive protruding axle (3) middle part has bellied protruding axle (31), guide way (42) have on drive deflector (4), protruding axle (31) spacing in guide way (42), start drawing dish (1) with when drive deflector (4) take place relative rotation guide way (42) guide the drive protruding axle (3) expand or withdraw.

4. A recoil starter according to claim 3, wherein: the starting pull disc (1) is also provided with a supporting part (13) for supporting the unfolded driving convex shaft (3).

5. A recoil starter according to claim 1, wherein: the fan-shaped flange (43) is arranged on the driving guide plate (4), and the starting pull disc (1) is provided with a limiting part (12) for limiting the fan-shaped flange (43).

6. A recoil starter according to claim 1, wherein: one side that drive deflector (4) middle part is close to start drawing dish (1) has extension sleeve pipe (44), first step (21a) terminal surface has the annular of dodging this extension sleeve pipe (44).

7. A recoil starter according to claim 1, wherein: the limiting block (6) is a butterfly gasket or a split pin.

Technical Field

The invention relates to the field of engine starters, in particular to a recoil starter.

Background

A recoil starter is an auxiliary device mounted on one end of an engine crankshaft to start the engine. The recoil starter can be provided with a ratchet mechanism, and the ratchet mechanism in the prior art has the disadvantages of complex structure, more parts, troublesome installation and high processing cost.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides the recoil starter which is simple in structure and convenient to install.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a recoil starter, draws a set screen panel, drive protruding axle, drive deflector including the start, its characterized in that: the pull disc net cover is provided with a central shaft, the central shaft is a stepped shaft, the starting pull disc is sleeved on a first step section of the central shaft in a rotatable mode, one end of a driving convex shaft is hinged to the starting pull disc, the other end of the driving convex shaft is limited in a limiting groove of the starting pull disc in a swinging mode, a driving guide plate is sleeved on a second step section of the central shaft, the driving guide plate is provided with an elastic foot and is in friction contact with the end face of the first step section of the central shaft through the elastic foot, and a limiting block used for compressing the driving guide plate to the end face of the first step section of the central shaft is arranged on the second step section outside the driving guide plate.

Furthermore, a flat pad is arranged between the elastic foot and the end surface of the first step section of the central shaft.

Furthermore, the number of the driving protruding shafts is multiple, the driving protruding shafts are arranged on the starting pull disc in a central symmetry mode, the middle of each driving protruding shaft is provided with a protruding shaft, the driving guide plate is provided with a guide groove, the protruding shafts are limited in the guide grooves, and the guide grooves guide the driving protruding shafts to be unfolded or retracted when the starting pull disc and the driving guide plate rotate relatively.

Furthermore, a supporting part for supporting the unfolded driving convex shaft is further arranged on the starting pull disc.

Furthermore, the drive guide plate is provided with a fan-shaped flange, and the starting pull disc is provided with a limiting part for limiting the fan-shaped flange.

Furthermore, one side of the middle part of the driving guide plate, which is close to the starting pull disc, is provided with an extension sleeve, and the end surface of the first step section is provided with a ring groove for avoiding the extension sleeve.

Furthermore, the limiting block is a butterfly gasket or a cotter pin.

The beneficial effects of the invention include: simple structure, the installation is simple, practices thrift manufacturing cost.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is a schematic structural diagram of a starting pull disc in the present invention;

FIG. 4 is a schematic view of the construction of the driving protruding shaft of the present invention;

FIG. 5 is a schematic view of the construction of the drive shoe of the present invention;

fig. 6 is a schematic view of a driving guide plate structure in another embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments and the accompanying drawings.

A recoil starter as shown in fig. 1-5, comprising a starting disc 1, a disc net cover 2, a driving convex shaft 3 and a driving guide plate 4. Wherein the pull disc mesh enclosure 2 is provided with a central shaft 21, the central shaft 21 is a stepped shaft, the starting pull disc 1 is rotatably sleeved on the first stepped section 21a of the central shaft 21, and the starting pull disc 1 and the pull disc mesh enclosure 2 can relatively rotate. The starting pull disc 1 is provided with a central round table, the driving convex shaft 3 is arranged on the central round table, one end of the driving convex shaft 3 is hinged on the starting pull disc 1, the other end of the driving convex shaft is limited in the limiting groove 11 of the starting pull disc 1 in a swinging mode, the driving convex shaft 3 can be unfolded outwards and used for combining an engine connecting shaft, and the driving convex shaft can also be completely retracted in the limiting groove 11 of the starting pull disc 1. The driving guide plate 4 is sleeved on the second step section 21b of the central shaft 21. The driving guide plate 4 has three elastic legs 41, and the driving guide plate 4 is in frictional contact with the end surface of the first step 21a of the central shaft 21 through the elastic legs 41 while maintaining a certain gap between the end surface of the starting disc 1 and the end surface of the driving guide plate 4. And the second step section 21b on the outer side of the driving guide plate 4 is provided with a limiting block 6 which is used for pressing the driving guide plate 4 to the end surface of the first step section 21a of the central shaft 21 and has a clamping butterfly-shaped gasket or split pin structure and the like to play a limiting role. The starter of this structure has simple structure, simple to operate's characteristics.

As shown in fig. 2, in the embodiment of the present invention, a flat pad 5 is further disposed between the elastic leg 41 and the end surface of the first step 21a of the central shaft 21. As shown in fig. 1 and 4, the driving protruding shafts 3 in this embodiment may be plastic or metal plated, the number of the driving protruding shafts 3 is set to be 2 for smooth rotation, and the driving protruding shafts 3 are arranged on the starting pull disc 1 in a central symmetrical manner, a protruding shaft 31 is provided in the middle of each driving protruding shaft 3, a guide groove 42 corresponding to each driving protruding shaft 3 is provided on the driving guide plate 4, and the protruding shaft 31 is limited in the guide groove 42. And when the starting pull disc 1 and the driving guide plate 4 rotate relatively, the guide groove 42 guides the driving protruding shaft 3 to extend or retract.

As shown in fig. 3, the starting pull disc 1 is further provided with a support portion 13 for supporting the driving protruding shaft 3 after being unfolded. The supporting strength of the driving protruding shaft 3 is ensured when the driving protruding shaft 3 is in contact with the engine connecting shaft. The starting pull disc 1 further comprises a rope winding groove arranged on the outer circumference. And the groove is positioned between the starting pull disc 1 and the pull disc mesh enclosure 2 and jointly forms a groove for containing the coil spring.

As shown in fig. 5, the driving guide plate 4 may be a plastic member or a metal-plated member. In order to save cost, the embodiment is made of plastic, the sector flange 43 is arranged on the driving guide plate 4, and the starting pull disc 1 is provided with a limiting part 12 for limiting the sector flange 43. The structure is used for allowing the driving guide plate 4 and the starting pull disc 1 to have certain relative rotation displacement, so that the driving convex shaft 3 is smoothly unfolded or retracted. In another embodiment of the present invention as shown in fig. 6, the side of the middle of the driving guide plate 4 close to the starting pull disc 1 is provided with an extension sleeve 44, the end surface of the first step section 21a is provided with a ring groove for avoiding the extension sleeve 44, and the driving guide plate 4 with the structure has higher stability because the axial matching section is longer during the working process.

The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by using specific examples, and the descriptions of the embodiments are only used to help understanding the principles of the embodiments of the present invention; meanwhile, for a person skilled in the art, according to the embodiments of the present invention, there may be variations in the specific implementation manners and application ranges, and in summary, the content of the present description should not be construed as a limitation to the present invention.