Auxiliary starter and transmission structure thereof

Abstract

The utility model relates to the field of auxiliary starters, in particular to an auxiliary starter and a transmission structure thereof, the auxiliary starter comprises a starting shaft and a coil spring, an inner pin of the coil spring is clamped on the starting shaft, the auxiliary starter is characterized by further comprising a starting cover and an isolator, the starting cover is arranged at the tail end of the starting shaft, the isolator comprises an inner ring and an outer ring, and the inner ring is arranged on the outer ring. The isolator is arranged at the end of an engine spindle, an inner ring of the isolator is fixedly connected with the spindle, and the starting cover is connected with an outer ring of the isolator. When the coil spring stores energy, the outer ring idles, and when the coil spring releases energy, the outer ring is linked with the inner ring. The starting cover is matched with the isolator, so that the safety and the stability of a product are improved, and the service life of the product is prolonged.

Description

An auxiliary starter and its transmission structure Technical Field

[0001] This utility model relates to the field of auxiliary starters, and in particular to an auxiliary starter and its transmission structure. 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. When the starting claw inserts into the starting cup during high-speed rotation, the starting claw and the starting cup will collide violently, which makes the starting claw and the starting cup easy to be damaged and limits the product life; 2. Since the starting claw needs to rotate around the hinge point on the claw plate, it is mostly designed to be thin. Due to the small contact area between the starting claw and the starting cup during high-speed rotation, it is also another major reason for the damage to the starting cup.

[0005] Due to the aforementioned technical problems, they have already caused some impact in this field. Therefore, there are related solutions in the prior art, such as an auxiliary starter for an engine disclosed in CN221896725U and a starter disclosed in CN109812367B. Both provide certain solutions to the above technical problems. Although they control the impact state and force state to a certain extent, the fundamental problem has not been effectively solved. The starting claw will always collide and separate from the starting cup, and this will happen every time it is started. That is, the impact process will affect the product's lifespan. Summary of the Invention

[0006] To address the aforementioned problems, the purpose of this utility model is to provide an auxiliary starter and its transmission structure to solve the problem in the prior art where product life is affected by damage caused by the impact between the starter claw and the starter cup.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a transmission structure for an auxiliary starter, comprising a starter shaft and a coil spring, wherein the inner foot of the coil spring is engaged with the starter shaft, characterized in that it further comprises a starter cover and a one-way device, wherein the starter cover is disposed at the end of the starter shaft, and the one-way device comprises an inner ring and an outer ring, wherein the one-way device is disposed at the end of the engine main shaft, and the inner ring is fixedly connected to the main shaft, and the starter cover is connected to the outer ring of the one-way device; when the coil spring stores energy, the outer ring rotates freely, and when the coil spring releases energy, the outer ring and the inner ring are linked.

[0008] Furthermore, the outer ring of the one-way valve can be a one-piece outer ring or a separate outer ring.

[0009] Furthermore, the split outer ring includes an outer ring body and a connecting cover. The outer ring body is disposed inside the connecting cover, and the outer ring body is fixedly connected to the connecting cover. The connecting cover is provided with several connecting parts that connect to the start cover.

[0010] Furthermore, the starter cover is concave, with several grooves on its sidewalls. The one-way valve is located within the concave cavity of the starter cover, and the outer ring of the one-way valve has several protrusions in the radial direction corresponding to the grooves on the sidewalls of the starter cover.

[0011] Furthermore, the starter cover and the outer ring of the one-way valve are engaged with the shaft hole via a pin;

[0012] Furthermore, a rubber ring is provided between the outer ring of the one-way valve and the contact surface of the starter cover. The inner wall structure of the rubber ring is matched with the structure of the outer ring of the one-way valve, and the outer wall structure of the rubber ring is matched with the inner wall structure of the starter cover.

[0013] Furthermore, the rubber ring is annular with a hollow interior to accommodate the outer ring of the one-way valve. The inner wall of the rubber ring has several grooves for engaging with the connecting part of the outer ring; the outer wall of the rubber ring has several grooves for engaging with the connecting part of the starter cover.

[0014] An auxiliary starter, comprising the transmission structure of any of the preceding auxiliary starters.

[0015] Furthermore, it also includes a housing, the coil spring is located inside the housing, the housing is provided with a starter shaft hole, the starter shaft passes through the housing and extends to both ends of the housing, which are the starter end and the output end, respectively. The starter end rotates the starter shaft through a starter device to achieve start-up; the output end is used to connect with a starter cover, and the engine is started by cooperating with a one-way valve through the starter cover.

[0016] Furthermore, it also includes a ratchet disposed at the starting end of the starting shaft, and a limiting component for limiting the ratchet to reverse, the limiting component including a starting part, a limiting part and a mounting post.

[0017] The technical effects of this utility model are:

[0018] 1. By using the starter cover and one-way valve together, the starter shaft drives the engine to rotate, thereby starting the engine.

[0019] 2. Under normal conditions, the starter cover and the one-way valve are always engaged and will not separate due to changes in the working state. Therefore, compared with the existing technology, it solves the problem of impact and collision between the starter claw and the starter cup, effectively improving the product's safety, stability and service life.

[0020] 3. A rubber ring is installed between the starter cover and the one-way valve to improve the ease of product operation, as well as enhance product safety, stability, and lifespan. Attached Figure Description

[0021] 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.

[0022] Figure 1 is a schematic diagram of the installation of this utility model;

[0023] Figure 2 is an exploded view of this utility model;

[0024] Figure 3 is an exploded view of the one-way device of this utility model;

[0025] Figure 4 is a schematic diagram of an embodiment of the starter cover and one-way device of this utility model;

[0026] Figure 5 is a schematic diagram of the second embodiment of the starter cover and one-way device of this utility model;

[0027] Figure 6 is a second schematic diagram of the second embodiment of the starter cover and one-way device of this utility model;

[0028] Figure 7 is a schematic diagram of the installation of the second embodiment of this utility model.

[0029] The reference numerals in the attached drawings are as follows: 100, housing; 200, coil spring; 300, starter shaft; 400, starter cover; 500, one-way valve; 600, main shaft; 700, rubber ring; 800, connecting part; 900, limiting assembly; 510, outer ring; 511, connecting cover; 512, outer ring body; 520, inner ring; 910, starter part; 920, limiting part; 930, mounting post; 940, ratchet. Detailed Implementation

[0030] 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.

[0031] The present invention will be further described with reference to the accompanying drawings:

[0032] As shown in Figures 1-7, a transmission structure for an auxiliary starter includes a starter shaft 300 and a coil spring 200. The inner foot of the coil spring 200 is engaged with the starter shaft 300. The structure also includes a starter cover 400 and a one-way valve 500. The starter cover 400 is located at the end of the starter shaft 300. The one-way valve 500 includes an inner ring 520 and an outer ring 510. The one-way valve 500 is located at the end of the engine main shaft 600, and the inner ring 520 is fixedly connected to the main shaft 600. The starter cover 400 is connected to the outer ring 510 of the one-way valve 500.

[0033] During the energy storage process of the coil spring 200, the coil spring 200 drives the starting shaft 300 to rotate. The end of the starting shaft 300 is connected to the starting cover 400. The starting shaft 300 drives the starting cover 400 to rotate. Since the starting cover 400 is connected to the outer ring 510 of the one-way valve 500, the outer ring 510 of the one-way valve 500 also rotates. However, the inner ring 520 is in a disengaged state.

[0034] When the coil spring 200 releases its elastic potential energy, it drives the starter shaft 300 to rotate, which in turn drives the starter cover 400 to rotate. The starter cover 400 drives the outer ring 510 of the one-way valve 500 to rotate, and the outer ring 510 drives the inner ring 520 to rotate. Since the inner ring 520 is connected to the main shaft 600 of the engine, the engine can be started.

[0035] The outer ring 510 of the one-way transducer 500 can be an integral outer ring or a separate outer ring.

[0036] The one-piece outer ring, namely the connecting part 800 of the outer ring of the one-way valve 500, is integrally formed and directly set on the outer ring.

[0037] The split outer ring includes an outer ring body 512 and a connecting cover 511. The outer ring body 512 is disposed inside the connecting cover 511. The outer ring body 512 and the connecting cover 511 are fixedly connected. Specifically, they can be connected by a key or by other means. The purpose is to make the connecting cover 511 and the outer ring 510 in a linked state. The connecting cover 511 is provided with several connecting parts 800 that are connected to the start cover 400.

[0038] The starter cover 400 is concave, and a connecting part 800 is provided on the side wall. The connecting part 800 is a plurality of grooves. The one-way device 500 is located in the concave cavity of the starter cover 400. The outer ring 510 of the one-way device 500 is provided with a connecting part 800 connected to the starter cover 400 in the radial direction, specifically a plurality of protrusions corresponding to the grooves on the side wall of the starter cover 400.

[0039] The connection 800 between the outer ring 510 of the starter cover 400 and the one-way valve 500 can take various forms, including but not limited to slot connection, pin connection, bolt connection, and mating with the shaft hole via a pin; one or more of these methods can also be used together.

[0040] Generally, the coil spring 200 is tightened by rotating the crank handle clockwise 2-4 turns, depending on the situation. Since the starter is connected to the engine spindle 600 of the tiller or other equipment via a one-way valve 500, when the coil spring 200 is storing energy, the outer ring 510 of the one-way valve 500 idles, and kinetic energy is not transmitted to the engine spindle 600 through the one-way valve 500. After the coil spring 200 is fully charged, it slowly returns 1 / 4 turn to eliminate connector gaps and lock the one-way valve 500, preventing the impact force caused by the release of the coil spring 200 due to gaps in the transmission components, which could delay the service life of various components. The release of the coil spring 200 drives the starter shaft 300, which in turn drives the one-way valve 500. At this time, the outer ring 510 inside the one-way valve 500 is locked, driving the engine spindle 600 to rotate and provide starting power. After startup, the coil spring 200 loses its potential energy and stops rotating. The main shaft 600 rotates normally under the power. At this time, the inner ring 520 of the one-way valve 500 is in a free-rotating state, and the rotation of the main shaft 600 will not affect the starter shaft 300.

[0041] A rubber ring 700 is provided between the outer ring 510 of the one-way valve 500 and the contact surface of the starter cover 400. The inner wall structure of the rubber ring 700 is matched with the structure of the outer ring 510 of the one-way valve 500, and the outer wall structure of the rubber ring 700 is matched with the inner wall structure of the starter cover 400.

[0042] Specifically, the rubber ring 700 is annular and hollow inside to accommodate the outer ring 510 of the one-way valve 500. The inner wall of the rubber ring 700 is provided with several grooves to cooperate with the connecting part 800 of the outer ring 510. The outer wall of the rubber ring 700 is provided with several grooves to cooperate with the connecting part 800 of the starter cover 400.

[0043] By filling the gaps with rubber ring 700, the connection between the starter cover 400, the outer ring 510 of the one-way valve 500, and the rubber ring 700 is made more compact and seamless. This further prevents the starter cover 400 from colliding with the outer ring 510 of the one-way valve 500 during the release of energy from the coil spring 200, and also provides a certain degree of cushioning. Therefore, with the rubber ring 700 installed, there is no need to slowly return 1 / 4 turn when starting the equipment, making operation more convenient and further improving the safety, stability, and service life of the equipment.

[0044] An auxiliary starter includes the transmission structure of the auxiliary starter described in any of the foregoing embodiments.

[0045] It also includes a housing 100, with a coil spring 200 located inside the housing 100. The housing 100 is provided with a starter shaft 300 hole. The starter shaft 300 passes through the housing 100 and extends to both ends of the housing 100, which are the starter end and the output end, respectively. The starter end rotates the starter shaft 300 through a starter device to start the engine. The output end is used to connect with the starter cover 400. The engine is started by cooperating with the one-way valve 500 through the starter cover 400.

[0046] It also includes a ratchet 940 disposed at the starting end of the starting shaft 300, and a limiting component 900 for limiting the reverse rotation of the ratchet 940. The limiting component 900 includes a starting part 910, a limiting part 920 and a mounting post 930.

[0047] The starting process is as follows: A crank or similar starting device rotates the starter shaft 300, causing the coil spring 200 to store energy. Simultaneously, a ratchet 940 is linked to the starter shaft 300 during rotation. A limit assembly 900 is installed on the ratchet 940 to prevent it from reversing and affecting the energy storage efficiency of the coil spring 200. The limit assembly 900 includes a starting part 910 and a limiting part 920, with the limiting part 920 engaging within the teeth of the ratchet 940. When the coil spring 200 has finished storing energy, the starting part 910 is activated, disengaging the limiting part 920 from the ratchet 940. This releases the energy from the coil spring 200, causing the starter shaft 300 to rotate and simultaneously starting the engine.

[0048] 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.

[0049] 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. A transmission structure for an auxiliary starter, comprising a starter shaft (300) and a coil spring (200), wherein the inner leg of the coil spring (200) engages with the starter shaft (300), characterized in that, It also includes a starter cover (400) and a one-way device (500). The starter cover (400) is located at the end of the starter shaft (300). The one-way device (500) includes an inner ring (520) and an outer ring (510). The one-way device (500) is located at the end of the engine main shaft (600), and the inner ring (520) is fixedly connected to the main shaft (600). The starter cover (400) is connected to the outer ring (510) of the one-way device (500). When the coil spring (200) stores energy, the outer ring (510) rotates freely. When the coil spring (200) releases energy, the outer ring (510) and the inner ring (520) are linked.

2. The transmission structure of an auxiliary starter as described in claim 1, characterized in that: The outer ring (510) of the one-way device (500) is either an integral outer ring or a separate outer ring.

3. The transmission structure of an auxiliary starter as described in claim 2, characterized in that: The split outer ring (510) includes an outer ring body (512) and a connecting cover (511). The outer ring body (512) is disposed inside the connecting cover (511). The outer ring body (512) and the connecting cover (511) are fixedly connected. The connecting cover (511) is provided with several connecting parts (800) that are connected to the start cover (400).

4. The transmission structure of an auxiliary starter as described in claim 1, characterized in that, The starter cover (400) is concave and has several grooves on its side wall. The one-way device (500) is located in the concave cavity of the starter cover (400). The outer ring (510) of the one-way device (500) has several protrusions in the radial direction that correspond to the grooves on the side wall of the starter cover (400).

5. The transmission structure of an auxiliary starter as described in claim 1, characterized in that: The starter cover (400) and the outer ring (510) of the one-way device (500) are engaged with the shaft hole by a pin.

6. The transmission structure of an auxiliary starter as described in claim 4, characterized in that: A rubber ring (700) is provided between the contact surface of the outer ring (510) of the one-way device (500) and the starter cover (400). The inner wall structure of the rubber ring (700) is matched with the structure of the outer ring (510) of the one-way device (500), and the outer wall structure of the rubber ring (700) is matched with the inner wall structure of the starter cover (400).

7. The transmission structure of an auxiliary starter as described in claim 6, characterized in that: The rubber ring (700) is annular and hollow inside to accommodate the outer ring (510) of the one-way device (500). The inner wall of the rubber ring (700) is provided with several grooves for cooperating with the connecting part (800) of the outer ring (510). The outer wall of the rubber ring (700) is provided with several grooves for cooperating with the connecting part (800) of the starter cover (400).

8. An auxiliary starter, characterized in that, The transmission structure includes the auxiliary starter as described in any one of claims 1 to 7.

9. An auxiliary starter as described in claim 8, characterized in that, It also includes a housing (100), the coil spring (200) is located inside the housing (100), the housing (100) is provided with a starter shaft (300) hole, the starter shaft (300) passes through the housing (100) and extends to both ends of the housing (100), which are the starter end and the output end, respectively. The starter end rotates the starter shaft (300) through the starter device to realize the starter; the output end is used to connect with the starter cover (400), and the engine is started by cooperating with the one-way valve (500) through the starter cover (400).

10. An auxiliary starter as described in claim 9, characterized in that, It also includes a ratchet (940) disposed at the starting end of the starting shaft (300), and a limiting component (900) for limiting the ratchet (940) to reverse, the limiting component (900) including a starting part (910), a limiting part (920) and a mounting post (930).

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