Auxiliary starter

Abstract

The utility model relates to the field of engine starting, in particular to an auxiliary starter which comprises a shell and a starting mechanism arranged on the outer side of the shell, the starting mechanism is connected with a main shaft arranged in the shell, a coil spring bin is further arranged in the shell, a coil spring is arranged in the coil spring bin through a coil spring bin cover plate, and the main shaft penetrates through the center of the coil spring bin. An inner pin of the coil spring is installed on the main shaft, an outer pin of the coil spring is arranged on the coil spring bin, the main shaft is further provided with a starting claw used for starting an engine, an installation portion is arranged on the outer ring of the coil spring bin cover plate, a sealing ring is arranged on the installation portion, and the side, away from the installation portion, of the sealing ring is in interference fit with the inner side of the shell to achieve sealing. And the cover plate is matched with the sealing ring to achieve the effect of sealing the interior of the shell, soil, water stains and dust are prevented from entering the interior of the shell, the cleanliness in the shell is improved, and the service life of the auxiliary starter is further prolonged.

Description

An auxiliary starter Technical Field

[0001] This utility model relates to the field of engine starting, and in particular to an auxiliary starter. Background Technology

[0002] Auxiliary starters are commonly used equipment in the field of agricultural machinery, mainly used to start engines. Auxiliary starters are divided into three types: hand-cranked, pull-plate type, and electric starter.

[0003] In the existing technology, the common method for hand-cranked auxiliary starters is to use a hand-cranked starter shaft to drive a coiled spring to store energy, and then release the potential energy of the coiled spring through a limiting mechanism to drive the pawl plate connected to the starter shaft to rotate. Several starter claws are hinged on the pawl plate. During the rotation of the pawl plate, the starter claws rotate, and during the rotation of the starter claws, the starter cup is inserted, which drives the starter cup to rotate, thereby starting the engine.

[0004] The existing methods have the following technical problems: 1. In the existing hand-cranked auxiliary starter, since the housing and the spring chamber are separate and the spring chamber cover is also placed on the spring chamber, when the auxiliary starter is working on the ground or in the field, mud or water stains will enter the auxiliary starter housing, and dust will also enter the starter housing, causing pollution and damage to the auxiliary starter. Summary of the Invention

[0005] To address the aforementioned problems, the purpose of this utility model is to provide an auxiliary starter that solves the issues of waterproofing, mudproofing, and dustproofing in the existing technology due to the gaps between the auxiliary starter housing, the spring housing, and the spring housing cover.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: an auxiliary starter, comprising a housing, a starting mechanism disposed on the outside of the housing, the starting mechanism being connected to a main shaft disposed within the housing, a spring housing disposed within the housing, the spring housing having a spring housing cover plate for housing the spring, the main shaft passing through the center of the spring housing, the inner foot of the spring being mounted on the main shaft, the outer foot of the spring being disposed on the spring housing, and a starting claw for starting the engine being disposed on the main shaft, characterized in that the outer ring of the spring housing cover plate has a mounting portion, the mounting portion having a sealing ring, the side of the sealing ring away from the mounting portion being press-fitted with the inner side of the housing to achieve sealing.

[0007] Furthermore, the sealing ring has an I-shaped cross-section, and the mounting part of the spring housing cover is a boss, which mates with the inner groove of the sealing ring.

[0008] Furthermore, the upper end of the outer ring of the sealing ring is larger than the lower end.

[0009] Furthermore, it also includes a reinforcing bracket, which is disposed on the spring housing cover plate. The reinforcing bracket includes an outer flange and an inner sidewall, and a mounting hole is provided between the outer flange and the inner sidewall.

[0010] Furthermore, the width of the reinforcing bracket is greater than the width of the side wall of the spring magazine.

[0011] Furthermore, the height of the outer flange of the reinforcing bracket is lower than the height of the inner sidewall.

[0012] Furthermore, the distance from the outer ring of the reinforcing bracket to the side wall of the housing is less than the distance from the spring cover plate mounting part to the side wall of the housing.

[0013] Furthermore, the bottom surface of the reinforcing bracket contacts the sealing ring.

[0014] Furthermore, the distance from the outer ring of the spring magazine to the side wall of the housing is less than the distance from the spring magazine cover mounting portion to the side wall of the housing.

[0015] Furthermore, the top of the spring housing cover contacts the sealing ring.

[0016] The technical effects of this utility model are:

[0017] 1. By setting an installation part on the outer ring of the spring housing cover and setting a sealing ring between it and the housing, the cover and the sealing ring can achieve the effect of sealing the inside of the housing, preventing dirt, water stains and dust from entering the housing, improving the cleanliness of the housing, and further improving the service life of the auxiliary starter.

[0018] 2. The sealing ring is I-shaped. The groove on the left side of the sealing ring matches the mounting part. There is a space between the upper and lower ends of the outer ring for the upper and lower ends to move, so that when the upper and lower ends match the housing, the sealing effect is better than that of the conventional sealing ring with a circular cross section by direct extrusion.

[0019] 3. Add reinforcing brackets to the spring magazine cover to improve the flatness of the spring magazine cover during installation. In addition, spring magazines and spring magazine covers generally do not have injection molded parts, and the installation process usually relies on bolts on both sides. The stress points are not distributed, which can easily lead to deformation. Adding reinforcing brackets can distribute the stress and improve the service life of the product. Attached Figure Description

[0020] The foregoing and other objects, features and advantages of this invention will become apparent from the following detailed description taken in conjunction with the accompanying drawings.

[0021] Figure 1 is a top view schematic diagram of this utility model;

[0022] Figure 2 is an exploded view of this utility model;

[0023] Figure 3 is a schematic diagram of the reinforcing bracket of this utility model;

[0024] Figure 4 is a schematic diagram of the installation of the spring magazine cover and sealing ring of this utility model;

[0025] Figure 5 is a schematic cross-sectional view of this utility model;

[0026] Figure 6 is an enlarged view of part A in the cross-sectional view of this utility model;

[0027] The reference numerals in the attached drawings are as follows: housing 100, starting mechanism 200, main shaft 300, spring coiling chamber 400, starting claw 500, spring coiling chamber cover 600, mounting part 610, sealing ring 700, upper end 710, lower end 720, reinforcing bracket 800, outer ring flange 810, inner ring sidewall 820, mounting hole 830. Detailed Implementation

[0028] The following embodiments of this utility model serve as inspiration. Through the following description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The scope of protection of this utility model is not limited to the contents of the claims and description.

[0029] The present invention will be further described with reference to the accompanying drawings:

[0030] Since most of the internal components of the auxiliary starter housing are symmetrical about the main shaft, the terms "outer ring," "inner ring," "outer side," and "inner side" described in this article refer to relative distances with the main shaft as a reference. The smaller the distance, the innermost; the larger the distance, the outermost.

[0031] As shown in Figures 1-6, an auxiliary starter includes a housing 100 and a starting mechanism 200 disposed on the outside of the housing 100. The starting mechanism 200 is connected to a main shaft 300 disposed inside the housing 100. A spring storage chamber 400 is also disposed inside the housing 100. A spring is disposed inside the spring storage chamber 400 through a spring storage chamber cover plate 600. The main shaft 300 passes through the center of the spring storage chamber 400. The inner foot of the spring is mounted on the main shaft 300, and the outer foot of the spring is disposed on the spring storage chamber 400. A starter claw for starting the engine is also disposed on the main shaft 300. A mounting part 610 is disposed on the outer ring of the spring storage chamber cover plate 600. A sealing ring 700 is disposed on the mounting part 610. The side of the sealing ring 700 away from the mounting part 610 is press-fitted with the inner side of the housing 100 to achieve a seal.

[0032] By providing an installation part 610 on the outer ring of the spring housing cover 600 and a sealing ring 700 between it and the housing 100, the cover and the sealing ring 700 work together to seal the inside of the housing 100, preventing dirt, water stains and dust from entering the inside of the housing 100, improving the cleanliness inside the housing 100 and further extending the service life of the auxiliary starter.

[0033] As shown in Figures 5 and 6, the sealing ring 700 has an I-shaped cross-section, and the mounting portion 610 of the spring magazine cover 600 is a boss. The boss mates with the inner groove of the sealing ring 700. The sealing ring 700 includes an upper end 710 and a lower end 720. There is a space between the upper end 710 and the lower end 720 of the outer ring for their movement, so that when the upper end 710 and the lower end 720 mate with the housing 100, a better sealing effect is achieved compared to the conventional directly extruded circular sealing ring. The I-shaped sealing ring 700 also facilitates the replacement of the sealing ring 700 and the installation and disassembly of the product. Since the upper end 710 of the outer ring of the sealing ring 700 is in direct contact with the outside, its sealing effect and the degree of damage required are greater than those of the lower end 720. Therefore, the upper end 710 of the outer ring of the sealing ring 700 is larger than the lower end 720.

[0034] It also includes a reinforcing bracket 800, which is mounted on the spring magazine cover 600. The reinforcing bracket 800 includes an outer flange 810 and an inner sidewall 820, with mounting holes 830 between the outer flange 810 and the inner sidewall 820. Bolts connect the spring magazine cover 600 and the spring magazine 400 through the mounting holes 830 of the reinforcing bracket 800. The addition of the reinforcing bracket 800 improves the flatness of the spring magazine cover during installation. Furthermore, the spring magazine 400 and the spring magazine cover 600 are generally injection molded parts, and the installation process typically relies on bolts on both sides, resulting in uneven stress distribution and a tendency to deform. Adding the reinforcing bracket 800 helps to distribute the stress and improve the product's lifespan.

[0035] The width of the reinforcing bracket 800 is greater than the width of the side wall of the spring magazine 400, which makes the force exerted by the bolts on the reinforcing bracket 800 more dispersed and further improves the stability of the product installation.

[0036] The height of the outer flange 810 of the reinforcing bracket 800 is lower than the height of the inner sidewall 820. The flange further enhances the strength of the reinforcing bracket 800. The lower outer flange 810 facilitates product installation, while the higher inner sidewall 820 ensures compatibility with internal components and product consistency.

[0037] The distance from the outer ring of the reinforcing bracket 800 to the side wall of the housing 100 is less than the distance from the spring cover mounting part 610 to the side wall of the housing 100. That is, the bottom of the reinforcing bracket 800 extends beyond the spring cover mounting part 610 of the spring compartment cover 600, and the bottom of the reinforcing bracket 800 can directly contact the sealing ring 700 to improve the stability of the sealing ring 700.

[0038] The distance from the outer ring of the spring magazine 400 to the side wall of the housing 100 is less than the distance from the mounting portion 610 of the spring magazine cover 600 to the side wall of the housing 100. The top of the spring magazine cover 600 contacts the sealing ring 700 to improve the stability of the sealing ring 700. Simultaneously, by reinforcing the bottom of the bracket 800 to contact the top of the spring magazine 400 with the sealing ring 700, the installation stability of the sealing ring 700 is further enhanced.

[0039] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0040] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An auxiliary starter, comprising a housing (100), a starting mechanism (200) disposed outside the housing (100), the starting mechanism (200) being connected to a main shaft (300) disposed inside the housing (100), a spring storage chamber (400) further disposed inside the housing (100), a spring being disposed inside the spring storage chamber (400) via a spring storage chamber cover plate (600), the main shaft (300) penetrating through the center of the spring storage chamber (400), an inner foot of the spring being mounted on the main shaft (300), an outer foot of the spring being disposed on the spring storage chamber (400), and a starter claw for starting an engine being disposed on the main shaft (300), characterized in that, The outer ring of the spring magazine cover (600) is provided with a mounting part (610), and a sealing ring (700) is provided on the mounting part (610). The sealing ring (700) is located away from the mounting part (610) and is press-fitted with the inner side of the housing (100) to achieve sealing.

2. An assist starter as claimed in claim 1, characterized in that: The sealing ring (700) has an I-shaped cross section, and the mounting part (610) of the spring magazine cover (600) is a boss, which is engaged with the inner groove of the sealing ring (700).

3. An assist starter as claimed in claim 2, characterized in that: The upper end (710) of the outer ring of the sealing ring (700) is larger than the lower end (720).

4. An auxiliary starter as described in claim 1, characterized in that, It also includes a reinforcing bracket (800), which is disposed on the spring magazine cover plate (600). The reinforcing bracket (800) includes an outer ring flange (810) and an inner ring sidewall (820), and an mounting hole (830) is provided between the outer ring flange (810) and the inner ring sidewall (820).

5. An assist starter as claimed in claim 4, characterised in that: The width of the reinforcing bracket (800) is greater than the width of the side wall of the spring magazine (400).

6. An assist starter as claimed in claim 4, characterized in that: The height of the outer flange (810) of the reinforcing bracket (800) is lower than the height of the inner sidewall (820).

7. An assist starter as claimed in claim 4, wherein: The distance from the outer ring of the reinforcing bracket (800) to the side wall of the housing (100) is less than the distance from the mounting part (610) of the spring magazine cover (600) to the side wall of the housing (100).

8. An assist starter as claimed in claim 7, characterised in that, The bottom surface of the reinforcing bracket (800) contacts the sealing ring (700).

9. An auxiliary starter as described in claim 7, characterized in that, The distance from the outer ring of the spring magazine (400) to the side wall of the housing (100) is less than the distance from the mounting part (610) of the spring magazine cover (600) to the side wall of the housing (100).

10. An assist starter as claimed in claim 9, characterised in that, The top of the spring housing cover (600) contacts the sealing ring (700).

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