Heat dissipation structure of mower starter

Abstract

The utility model provides a heat dissipation structure of a mower starter, which comprises a box body for installing a starter assembly, a starter cover, a flywheel connected with the starter assembly and a starter connecting seat arranged between the starter cover and the box body, air inlet holes for cold air to enter after the flywheel rotates are arranged at the upper end and the lower end of the starter cover, and the starter connecting seat is connected with the starter cover. And the starter connecting seat is positioned outside the box body and is provided with an exhaust hole for heat dissipation. The air inlet holes are formed in the starter cover, the air exhaust holes are formed in the starter connecting base, cold air is sucked in through rotation of the flywheel and then blown out of the air exhaust holes for heat dissipation, and the heat dissipation effect is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to a lawn mower technical field especially a lawn mower starter's heat radiation structure. BACKGROUND

[0002] At present, the lawn mower of gasoline garden tool industry mostly adopts the hand-pulled starter, drives the starting ratchet wheel to rotate through the pull rope of the hand-pulled starter, and the starting ratchet wheel and the starting dial structure installed on the crankshaft are matched and buckled, thereby driving the starting dial and the crankshaft to rotate together, and finally starting the lawn mower. In order to protect the internal starter assembly of the existing lawn mower, it is usually necessary to set the protective cover, which is installed on the box and is very tightly sealed without ventilation and heat radiation structure. And because the starting rope wheel, the starting ratchet wheel and the starting dial in the starting structure are stifled between the starter cover and the box, a large amount of heat generated in the high-speed operation of the gasoline engine will be blown to the starting ratchet wheel and the starting rope wheel through the dial rotation, and the heat generated by the friction between the starter and the starting ratchet wheel and the starting rope wheel caused by the vibration of the gasoline engine, all the heat is accumulated between the starter cover and the box and cannot be dissipated, which will eventually affect the performance and service life of the starter assembly. SUMMARY

[0003] In order to solve the above problems of the prior art, the utility model provides a heat radiation structure of lawn mower, sets up the air inlet hole on the starter cover, sets up the heat radiation exhaust hole on the starter connecting seat, can take out the heat inside the starter assembly, has good heat dissipation effect, prolongs and improves the service life of the starter.

[0004] The technical scheme adopted is as follows:

[0005] A heat radiation structure of lawn mower starter, comprising a box body for installing a starter assembly, a starter cover, and a flywheel connected with the starter assembly, further comprising a starter connecting seat arranged between the starter cover and the box body, wherein the upper and lower ends of the starter cover are provided with air inlet holes for cold air to enter after the flywheel rotates, and the starter connecting seat is provided with an exhaust hole outside the box body for heat dissipation.

[0006] Further, the flywheel is connected with the starter assembly through the crankshaft.

[0007] Further, the flywheel is provided with a wind deflector, and the wind deflector is provided with a connecting piece between the box body.

[0008] Further, the starter assembly comprises a starting ratchet wheel, a force storage disc spring, a starting rope wheel and a return disc spring.

[0009] Further, the starter cover is provided with a starting pull rope matched with the starter assembly, and the starting pull rope is provided with a starting handle.

[0010] Further, the exhaust holes are arranged around the starter connector seat outside the box body.

[0011] Further, the starter assembly is provided with a starter dial.

[0012] Further, the box body is a right box body of a mower, and the connecting piece is a left box body of the mower.

[0013] Compared with the prior art, the mower starter has the following advantages:

[0014] The mower starter has the following advantages: BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 Fig. 1 is a schematic diagram of the overall structure of the mower starter;

[0016] Figure 2 Fig. 2 is a partially disassembled view of the mower starter;

[0017] Figure 3 Fig. 3 is a path diagram of the cold air entering the starter;

[0018] Figure 4 Fig. 4 is a path diagram of the exhaust air of the starter;

[0019] Figure 5 Fig. 5 is a schematic diagram of part of the structure of the mower starter;

[0020] Figure 6 Fig. 6 is a front view of the mower starter;

[0021] Fig. 1 is a schematic diagram of the overall structure of the mower starter; DETAILED DESCRIPTION

[0022] The mower starter will be further described below in combination with specific embodiments.

[0023] Reference Figures 1-6 A heat dissipation structure of a starter of a mower, comprising a box 1 for mounting a starter assembly 2, a starter cover 3, a flywheel 5 connected with the starter assembly 2, and a starter connecting seat 4 arranged between the starter cover 3 and the box 1, wherein both upper and lower ends of the starter cover 3 are provided with air inlet holes 6 for cold air to enter after the flywheel rotates, and the starter connecting seat 4 is provided with air outlet holes 7 for heat dissipation outside the box.

[0024] The air outlet holes 7 are arranged in a circle outside the starter connecting seat 4 on the box 1, and the air inlet holes 6 are arranged at the upper and lower ends of the starter cover 3.

[0025] The flywheel 5 is connected with the starter assembly 2 through a crankshaft 10.

[0026] The flywheel 5 is provided with a wind deflector 8 outside, and a connecting piece 9 is arranged between the wind deflector and the box. In this embodiment, the box 1 is a right box of the mower, and the connecting piece 9 is a left box of the mower. One side of the box 1 accommodates the starter assembly 3, and the other side is used for connecting the crankshaft 10.

[0027] The starter assembly 2 comprises a starting ratchet wheel 201, a force storage disc spring 202, a starting rope wheel 203, and a return disc spring 204. The starter assembly 2 is provided with a starting dial 13 outside.

[0028] The force storage disc spring 202 and the return disc spring 204 are arranged on both sides of the starting rope wheel 203, and the starting rope wheel 203 is connected with the starting ratchet wheel 201. The starter cover 3 is provided with a starting pull rope 11 matched with the starter assembly 2, and a starting handle 12 is arranged on the starting pull rope to facilitate manual pulling of the starting pull rope.

[0029] As Figure 3 is a path diagram of cold air entering the starter; and Figure 4 is a path diagram of air exhaust for heat dissipation of the starter. When the starter is started, the flywheel is driven to rotate by the crankshaft 10, and the flywheel sucks cold air outside into the box 1 through rotation. The cold air outside enters the box 1 from the air inlet holes 6 at the upper and lower ends of the starter cover 3 to cool the starter assembly 2. The heat generated by the gasoline engine and the heat generated by the friction between the starter cover 3 and the starting ratchet wheel 201 and the starting rope wheel 203 are discharged through the air outlet holes 7 on the starter connecting seat 4. The cold air outside entering from the air inlet holes is used for cooling, and the heat is discharged through the air outlet holes, so as to achieve the purpose of heat dissipation. Through the heat dissipation structure, the overall use environment of the starter assembly can be improved, so as to prolong the service life of the starter assembly and improve the performance of the starter assembly.

[0030] The above only describes optional embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structural transformation made by using the content of the present application specification and drawings, or direct / indirect application in other related technical fields is included in the patent protection scope of the present application.

Claims

1. A heat dissipation structure of a mower starter, comprising a box (1) mounting a starter assembly (2), a starter cover (3), and a flywheel (5) connected with the starter assembly (2), characterized in that: It also includes the starter connecting seat (4) between the starter cover (3) and the box (1), the upper and lower ends of the starter cover (3) are provided with the air inlet hole (6) for the cold air to enter after the flywheel rotates, and the starter connecting seat (4) is provided with the air exhaust hole (7) for heat dissipation outside the box.

2. The heat sink structure for a mower starter as set forth in claim 1, wherein: The flywheel (5) is connected with the starter assembly (2) through the crankshaft (10).

3. The heat sink structure of the lawn mower starter according to claim 1, wherein: The flywheel (5) is provided with the air guide cover (8) outside the cover, and the air guide cover is provided with the connecting piece (9) between the box.

4. The heat sink structure for a mower starter as set forth in claim 1, wherein: The starter assembly (2) includes the starting ratchet (201), the force storage disc spring (202), the starting rope wheel (203) and the return disc spring (204).

5. The heat sink structure for a lawnmower starter as defined in claim 1, wherein: The starter cover (3) is provided with the starting pull rope (11) matched with the starter assembly (2), and the starting handle (12) is arranged on the starting pull rope.

6. The heat sink structure for a lawnmower starter as defined in claim 1, wherein: The air exhaust hole (7) is arranged in a plurality of rows on the one side of the starter connecting seat (4) outside the box (1).

7. The heat sink structure for a lawnmower starter as defined in claim 1, wherein: The starter assembly (2) is provided with the starting dial (13) outside the cover.

8. The heat sink structure for a mower starter as set forth in claim 3, wherein: The box (1) is the right box of the mower, and the connecting piece (9) is the left box of the mower.

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