Engine starting device of lawn trimming machine

Abstract

The utility model belongs to the technical field of engine starting devices, and discloses a lawn trimming machine engine starting device which comprises a shell, an equipment groove is formed in the bottom end of the shell, a through groove is formed in the top end of the shell and communicated with the equipment groove, and an oiling device is arranged on the side, close to the through groove, of the top end of the shell. A hinge is fixedly connected to the top end of the shell and located at the notch position of the through groove, and a starting box is hinged to the hinge. Through cooperative use of a filter screen, a shielding cover and a rubber sealing ring, sundries such as grass clippings and soil generated by trimming can be effectively prevented from entering the manual pull rope starting device through heat dissipation holes, abrasion and jamming of a pull rope and internal mechanical parts caused by the sundries are effectively avoided, the service life of the engine starting device is prolonged, and the engine starting device is suitable for popularization and application. And through combined use of a first clamping ring, a second clamping ring, a hinge, a mounting screw and a threaded groove, a starting box can be conveniently opened, and grass clippings and soil in a cleaning groove are cleaned.

Description

Technical Field

[0001] The utility model belongs to the technical field of engine starting devices, and more specifically, particularly relates to an engine starting device for a lawn trimmer. Background Art

[0002] A lawn trimmer is a gardening tool used to trim and maintain lawns. It is usually used in home gardens, public green spaces, parks, and golf courses. Users need to manually push the trimmer forward. It is suitable for small and medium-sized lawns.

[0003] When a lawn trimmer is currently used to trim the lawn, a starting device is required to start the engine of the lawn trimmer so that the lawn trimmer can trim the lawn. However, when the lawn trimmer is trimming the lawn, debris such as grass clippings and soil produced by trimming will enter the manual pull-cord starting device through the heat dissipation holes. These debris will cause wear and jamming of the pull cord and internal mechanical parts, making it impossible for the starting device to start the engine normally, thus affecting the normal use of the lawn trimmer. Furthermore, in order to clean the debris that has entered the internal part of the current starting device, the entire engine starting device can only be disassembled for cleaning, which is time-consuming and labor-intensive.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a lawn trimmer engine starting device is provided to achieve a more practical purpose. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a lawn trimmer engine starting device, which is achieved by the following specific technical means:

[0006] A lawn trimmer engine starting device comprises a shell, a device slot is formed at the bottom end of the shell, a through slot is formed at the top end of the shell, the through slot is connected to the device slot, a refueling device is provided at the top end of the shell on a side close to the through slot, a hinge is fixedly connected to the top end of the shell at a slot position located at the through slot, a starting box is hingedly connected to the hinge, a plurality of heat dissipation holes are formed on the outside of the starting box, a rope tube is provided at one side of the starting box, a manual rope pulling device is provided at the pipe mouth position of the rope tube, a starting slot is formed at the bottom end of the starting box, the rope tube is connected to the starting slot, a shaft body is fixedly connected to the center position of the top end of the starting slot, and a starting disk is rotatably connected to the shaft body.

[0007] Furthermore, the shell is fixedly connected to a first snap-fitting ring at the inner wall position of the through groove, a plurality of threaded grooves are provided at the top of the first snap-fitting ring, a second snap-fitting ring is fixedly connected to the bottom end of the start box, and the size of the second snap-fitting ring is larger than that of the first snap-fitting ring, and a plurality of mounting screws are provided at the bottom end of the second snap-fitting ring corresponding to the plurality of threaded grooves.

[0008] Furthermore, a rubber sealing ring is fixedly connected to the top end of the shell at the notch position of the through groove.

[0009] Furthermore, a plurality of the heat dissipation holes are fixedly connected with filters, and a shielding cover is movably provided on one side of the start slot at positions corresponding to the plurality of heat dissipation holes.

[0010] Furthermore, the refueling device includes a refueling pipe, a filter element, a knob and a connecting block, the bottom end of the connecting block is fixedly connected to the filter element, the knob is fixedly connected to the top end of the connecting block, the pipe mouth of the refueling pipe is provided with a thread, and the refueling pipe is connected to the connecting block through the thread.

[0011] Furthermore, the manual pull rope device includes a pull rope and a handle, one end of the pull rope is fixedly connected to the handle, and the other end of the pull rope extends to the inside of the starting groove through a rope tube and is fixedly connected to the starting disk.

[0012] Furthermore, a pull rope reel, a ratchet pawl and a return spring are arranged in the starting disk.

[0013] Furthermore, a handle is provided at the top of the starter box, and a spark plug sensor is provided at the other side of the top of the starter box.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] In the utility model, the coordinated use of the filter screen, the shielding cover and the rubber sealing ring can effectively prevent debris such as grass clippings and dirt generated by trimming from entering the manual pull-cord starting device through the heat dissipation holes, effectively avoiding impurities from causing wear and jamming of the pull cord and internal mechanical parts, and improving the service life of the engine starting device. Through the combined use of the first snap ring, the second snap ring, the hinge, the mounting screws and the threaded groove, the starter box can be conveniently opened to clean the grass clippings and dirt inside the cleaning groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a side sectional schematic diagram of the utility model.

[0018] Figure 3 This utility model Figure 2 A magnified schematic diagram of the A structure.

[0019] Figure 4 It is a schematic cross-sectional view of the top surface of the starter box of the utility model.

[0020] Figure 5It is a side sectional schematic diagram of the starting disk of the utility model.

[0021] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0022] 1. Shell; 2. Equipment slot; 3. Through slot; 4. Hinge; 5. Starter box; 6. Heat dissipation hole; 7. Rope tube; 8. Starter slot; 9. Shaft; 10. Starter disk; 11. First snap ring; 12. Threaded groove; 13. Second snap ring; 14. Mounting screw; 15. Rubber sealing ring; 16. Filter; 17. Shielding cover; 18. Fuel pipe; 19. Filter element; 20. Knob; 21. Connecting block; 22. Pull rope; 23. Handle; 24. Handle; 25. Spark plug sensor. DETAILED DESCRIPTION

[0023] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0024] Example:

[0025] As attached Figure 1 To Attachment Figure 5 As shown:

[0026] The utility model provides a lawn trimmer engine starting device, comprising a shell 1, a device slot 2 is provided at the bottom end of the shell 1, a through slot 3 is provided at the top end of the shell 1, the through slot 3 is connected to the device slot 2, a refueling device is provided at the top end of the shell 1 on a side close to the through slot 3, a hinge 4 is fixedly connected at the top end of the shell 1 at a slot position located at the through slot 3, a starting box 5 is hingedly connected to the hinge 4, a plurality of heat dissipation holes 6 are provided on the outer side of the starting box 5, a rope tube 7 is provided at one side of the starting box 5, a manual rope pulling device is provided at the pipe mouth position of the rope tube 7, a starting slot 8 is provided at the bottom end of the starting box 5, the rope tube 7 is connected to the starting slot 8, a shaft body 9 is fixedly connected at the top center position of the starting slot 8, and a starting disk 10 is rotatably connected to the shaft body 9.

[0027] Among them, the shell body 1 is fixedly connected to a first snap ring 11 at the inner wall position of the through groove 3, and a plurality of threaded grooves 12 are opened at the top of the first snap ring 11. The bottom end of the start box 5 is fixedly connected to a second snap ring 13, and the size of the second snap ring 13 is larger than that of the first snap ring 11. A plurality of mounting screws 14 are provided at the bottom end of the second snap ring 13 corresponding to the plurality of threaded grooves 12.

[0028] Among them, a rubber sealing ring 15 is fixedly connected to the top of the shell 1 at the notch position of the through groove 3, and the rubber sealing ring 15 can ensure the sealing of the connection between the shell 1 and the starter box 5.

[0029] Among them, several heat dissipation holes 6 are fixedly connected with filter screens 16, and one side of the starting slot 8 is movably provided with a shielding cover 17 at the position corresponding to the several heat dissipation holes 6. The setting of the filter screen 16 can effectively block the grass clippings and dirt generated by lawn mowing, and the shielding cover 17 can further block impurities entering the starting slot 8.

[0030] Among them, the refueling device includes a refueling pipe 18, a filter element 19, a knob 20 and a connecting block 21. The bottom end of the connecting block 21 is fixedly connected to the filter element 19, the knob 20 is fixedly connected to the top end of the connecting block 21, and a thread is provided at the pipe mouth of the refueling pipe 18. The refueling pipe 18 is connected to the connecting block 21 through the thread.

[0031] The manual pull rope device includes a pull rope 22 and a handle 23 , one end of the pull rope 22 is fixedly connected to the handle 23 , and the other end of the pull rope 22 extends through the rope tube 7 to the inside of the starting slot 8 and is fixedly connected to the starting disk 10 .

[0032] Among them, the starting disk 10 is provided with a pull rope reel, a ratchet pawl and a return spring.

[0033] Among them, a handle 24 is provided at the top of the starter box 5, and a spark plug sensor 25 is provided on the other side of the top of the starter box 5. The handle 24 can conveniently open the starter box 5 for maintenance, and the spark plug sensor 25 can detect the starting condition of the engine to ensure the normal operation of the ignition system.

[0034] Working principle of this embodiment: In the utility model, when the staff needs to start the lawn trimmer to trim the lawn, they twist the knob 20, the connecting block 21 leaves the fuel pipe 18 and takes out the filter element 19, then pour the engine oil into the fuel pipe 18, and then put the filter element 19 back into the fuel pipe 18. At this time, they hold the handle 23 with their hands and pull the pull rope 22 outward. The pull rope 22 drives the pull rope reel, so that the pawl drives the entire starting disk 10 to rotate, drives the crankshaft of the engine to rotate, starts the engine, and then the return spring drives the starting disk 10 to return to its original position, retracts the extended pull rope 22 into the rope tube 7, and the staff can use the lawn trimmer to trim the lawn. The filter screen 16 can effectively prevent the grass clippings and soil and other debris generated by trimming from entering the manual pull rope 22 starting device through the heat dissipation hole 6. The shielding cover 17 can further block the impurities, effectively avoiding the impurities causing the pull rope 22 and the internal mechanical parts to wear and jam. When it is necessary to inspect the starting device of the lawn trimmer or clean the grass clippings or soil inside, the mounting screw 14 is removed from the threaded groove 12 with a screwdriver, and then the handle 24 is held by hand to lift the starting box 5 upwards. The starting box 5 leaves from the top of the shell 1 through the hinge 4, and the staff can inspect and clean the starting device in the starting slot 8.

[0035] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific purposes.

Claims

1. A lawn trimmer engine starting device, comprising a housing (1), characterized in that: The bottom end of the shell (1) is provided with an equipment slot (2), the top end of the shell (1) is provided with a through slot (3), the through slot (3) is connected to the equipment slot (2), the top end of the shell (1) is provided with a refueling device on a side close to the through slot (3), the top end of the shell (1) is fixedly connected with a hinge (4) at a slot position of the through slot (3), the hinge (4) is hinged with a start box (5), the outside of the start box (5) is provided with a plurality of heat dissipation holes (6), a rope tube (7) is provided at one side of the start box (5), a manual rope pulling device is provided at the pipe mouth of the rope tube (7), the bottom end of the start box (5) is provided with a start slot (8), the rope tube (7) is connected to the start slot (8), the top center position of the start slot (8) is fixedly connected with a shaft body (9), and the shaft body (9) is rotatably connected with a start disk (10).

2. The lawn trimmer engine starting device according to claim 1, characterized in that: The housing (1) is fixedly connected to a first snap ring (11) at an inner wall position of the through groove (3), and a plurality of thread grooves (12) are provided at the top of the first snap ring (11). The bottom end of the start box (5) is fixedly connected to a second snap ring (13), and the size of the second snap ring (13) is larger than that of the first snap ring (11). A plurality of mounting screws (14) are provided at the bottom end of the second snap ring (13) corresponding to the plurality of thread grooves (12).

3. A lawn trimmer engine starting device as claimed in claim 2, characterized in that: A rubber sealing ring (15) is fixedly connected to the top end of the housing (1) at a notch position of the through groove (3).

4. The lawn trimmer engine starting device according to claim 1, characterized in that: A plurality of the heat dissipation holes (6) are all fixedly connected to a filter screen (16), and a shielding cover (17) is movably provided on one side of the start slot (8) at positions corresponding to the plurality of heat dissipation holes (6).

5. The lawn trimmer engine starting device as claimed in claim 1, characterized in that: The refueling device comprises a refueling pipe (18), a filter element (19), a knob (20) and a connecting block (21); the bottom end of the connecting block (21) is fixedly connected to the filter element (19); the knob (20) is fixedly connected to the top end of the connecting block (21); a thread is provided at the pipe mouth of the refueling pipe (18); and the refueling pipe (18) is connected to the connecting block (21) via the thread.

6. The lawn trimmer engine starting device as claimed in claim 1, characterized in that: The manual pull rope device comprises a pull rope (22) and a handle (23), one end of the pull rope (22) being fixedly connected to the handle (23), and the other end of the pull rope (22) extending through a rope tube (7) to the interior of the starting groove (8) and fixedly connected to the starting disk (10).

7. The lawn trimmer engine starting device as claimed in claim 1, characterized in that: The starting disk (10) is provided with a pull rope reel, a ratchet pawl and a return spring.

8. The lawn trimmer engine starting device as claimed in claim 1, characterized in that: A handle (24) is provided at the top of the starter box (5), and a spark plug sensor (25) is provided on the other side of the top of the starter box (5).

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