Dustproof engine of garden pruning device

Abstract

The utility model provides a dustproof engine of a garden pruning device, which relates to the field of garden management and comprises a shell, an engine main body is mounted in the shell, a saw cutting component is mounted on one side of the shell, the engine main body is in transmission connection with the saw cutting component, a through groove is formed in one side of the shell, and the through groove is communicated with the engine main body. A filter screen is installed on the inner side of an outer opening of the through groove, a fan is installed on the inner side of the through groove and located between the filter screen and the engine body, the fan is fixedly connected with a crankshaft of the engine body, and a cover shell is arranged on the surface of the shell and located around the through groove; a filter screen cleaning assembly is mounted between the housing and the shell; the filter screen is arranged on the inner side of the through groove, and dust in air can be filtered and intercepted by the filter screen in the process that the fan rotates along with the crankshaft of the engine main body to blow airflow to the engine main body, so that the quantity of dust attached to the engine main body is effectively reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of garden management, in particular to a dustproof engine for a garden pruning device. Background Art

[0002] In the process of garden management, it is often necessary to use tools to prune trees.

[0003] Common tools used for pruning tree branches are divided into two types according to the different driving methods, namely, electric saws with motors driving the saw blades and oil saws with engines driving the saw blades. The engine needs to be cooled during operation, and the usual method is to install a fan on the crankshaft of the engine. The fan will rotate with the crankshaft during the operation of the engine to blow air to the engine. However, during the air flow, dust in the air will also be blown to the engine at the same time. Dust adheres to the surface of the engine for a long time, affecting the heat dissipation efficiency and service life of the engine.

[0004] In summary, the utility model provides a dust-proof engine for a garden pruning device to solve the above-mentioned problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a dust-proof engine for a garden pruning device, which is achieved by the following specific technical means:

[0006] A dustproof engine for a garden pruning device comprises a shell, an engine body is installed inside the shell, a sawing assembly is installed on one side of the shell, and the engine body is transmission-connected with the sawing assembly, a through slot is provided on one side of the shell, a filter is installed on the inner side of an external opening of the through slot, a fan is installed on the inner side of the through slot between the filter and the engine body, and the fan is fixedly connected to the crankshaft of the engine body, a cover is provided on the surface of the shell around the through slot, a filter cleaning assembly is installed between the cover and the shell, a first air inlet is provided on the side of the cover away from the shell, and second air inlets are provided on the top and bottom of the cover.

[0007] Furthermore, the filter cleaning assembly includes two cleaning strips symmetrically installed on the inner side of the cover, and a rubber brush strip is provided on the side of the cleaning strip close to the filter. Two guide rods are also symmetrically provided on the inner side of the cover, and the two guide rods pass through the two cleaning strips in sequence, and the cleaning strips are slidably connected to the guide rods.

[0008] Furthermore, a connecting block is provided on the side of the cleaning strip away from the filter screen, and a rack is fixedly connected to the side of the connecting block away from the cleaning strip. A fixed shaft is provided between the two racks on the inner side of the cover shell, a first gear is mounted on the surface of the fixed shaft, and the two racks are meshed and connected with the first gear.

[0009] Furthermore, a second gear is provided on a side of the first gear away from the filter screen, a movable groove is provided on one side of the cover shell, a connecting shaft is provided on the inner side of the cover shell at a position close to the movable groove, a movable rod is sleeved on the outer side of the connecting shaft, one end of the movable rod passes through the inner side of the movable groove, and a pressing plate is provided on the protruding end, an end of the movable rod close to the second gear is fixedly connected to an arc-shaped rack, and the arc-shaped rack is meshed and connected with the second gear.

[0010] Furthermore, the circle of the arc-shaped rack is arranged concentrically with the connecting shaft.

[0011] Furthermore, a first fixed column is provided on one side of the movable rod between the connecting shaft and the arc-shaped rack, a second fixed column is provided on the inner side of the cover shell, a tension spring is installed on the inner side of the cover shell between the first fixed column and the second fixed column, and both ends of the tension spring are respectively connected to the first fixed column and the second fixed column.

[0012] Furthermore, an arc-shaped limiting groove is provided on the surface of the arc-shaped rack, a limiting pin is provided on the inner side of the cover shell, and the limiting pin penetrates into the arc-shaped limiting groove.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The utility model uses a filter screen arranged on the inner side of the through slot. When the fan rotates along with the crankshaft of the engine body to blow the airflow toward the engine body, the filter screen can filter and intercept dust in the air, thereby effectively reducing the amount of dust attached to the engine body.

[0015] 2. The utility model can drive two cleaning strips to move by toggling the pressing plate, and the cleaning strips can scrape and brush the surface of the filter screen, thereby cleaning the surface of the filter screen and maintaining the ventilation performance of the filter screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0017] Figure 2 It is a three-dimensional schematic diagram of the utility model after removing the cover;

[0018] Figure 3It is a three-dimensional schematic diagram of the cover shell and filter cleaning assembly of the utility model;

[0019] Figure 4 This utility model Figure 2 A local enlarged schematic diagram of point A in the middle.

[0020] In the figure:

[0021] 1. Shell; 2. Sawing assembly; 3. Through slot; 4. Filter; 5. Fan; 6. Cover; 701. First air inlet; 702. Second air inlet; 8. Cleaning strip; 9. Rubber brush strip; 10. Guide rod; 11. Connecting block; 12. Rack; 13. Fixed shaft; 14. First gear; 15. Second gear; 16. Movable slot; 17. Connecting shaft; 18. Movable rod; 19. Pressing plate; 20. Arc-shaped rack; 21. First fixed column; 22. Second fixed column; 23. Tension spring; 24. Arc-shaped limit slot; 25. Limit pin. DETAILED DESCRIPTION

[0022] 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.

[0023] like Figure 1-4 As shown, the utility model provides a dust-proof engine for a garden pruning device, comprising a shell 1, an engine body is installed inside the shell 1, a sawing assembly 2 is installed on one side of the shell 1, and the engine body and the sawing assembly 2 are transmission-connected, a through slot 3 is provided on one side of the shell 1, a filter screen 4 is installed on the inner side of the external opening of the through slot 3, a fan 5 is installed on the inner side of the through slot 3 between the filter screen 4 and the engine body, and the fan 5 is fixedly connected to the crankshaft of the engine body, a cover shell 6 is provided around the through slot 3 on the surface of the shell 1, a filter screen cleaning assembly is installed between the cover shell 6 and the shell 1, a first air inlet 701 is provided on the side of the cover shell 6 away from the shell 1, and a second air inlet 702 is provided on the top and bottom of the cover shell 6.

[0024] Among them, the filter cleaning assembly includes two cleaning strips 8 symmetrically installed on the inner side of the cover 6, and a rubber brush strip 9 is arranged on the side of the cleaning strip 8 close to the filter 4. The rubber brush strip 9 is used to clean the dust on the surface of the filter 4. Two guide rods 10 are also symmetrically arranged on the inner side of the cover 6. The two guide rods 10 pass through the two cleaning strips 8 in sequence, and the cleaning strips 8 are slidably connected to the guide rods 10. The guide rods 10 are used to improve the stability of the movement of the cleaning strip 8.

[0025] Among them, a connecting block 11 is provided on the side of the cleaning strip 8 away from the filter screen 4, and a rack 12 is fixedly connected to the side of the connecting block 11 away from the cleaning strip 8. A fixed shaft 13 is provided between the two racks 12 on the inner side of the cover shell 6. A first gear 14 is mounted on the surface of the fixed shaft 13, and the two racks 12 are meshed and connected with the first gear 14. When the second gear 15 located between the two racks 12 rotates, the two racks 12 will respectively drive the two cleaning strips 8 to move to both sides, thereby respectively driving the two cleaning strips 8 to move.

[0026] Among them, a second gear 15 is provided on the side of the first gear 14 away from the filter screen 4, and the first gear 14 and the second gear 15 can rotate synchronously. A movable groove 16 is provided on one side of the cover shell 6, and a connecting shaft 17 is provided on the inner side of the cover shell 6 at a position close to the movable groove 16. A movable rod 18 is sleeved on the outer side of the connecting shaft 17, and one end of the movable rod 18 passes through the inner side of the movable groove 16, and a pressing plate 19 is provided on the protruding end. An end of the movable rod 18 close to the second gear 15 is fixedly connected with an arc-shaped rack 20, and the arc-shaped rack 20 is meshed and connected with the second gear 15, and the second gear 15 is driven to rotate by the arc-shaped rack 20.

[0027] The circular shape of the arc-shaped rack 20 is arranged concentrically with the connecting shaft 17 .

[0028] Among them, a first fixed column 21 is arranged on one side of the movable rod 18 between the connecting shaft 17 and the arc-shaped rack 20, a second fixed column 22 is arranged on the inner side of the cover shell 6, and a tension spring 23 is installed on the inner side of the cover shell 6 between the first fixed column 21 and the second fixed column 22, and the two ends of the tension spring 23 are respectively connected to the first fixed column 21 and the second fixed column 22, so that the movable rod 18 is reset by the tension spring 23.

[0029] Among them, an arc-shaped limit groove 24 is opened on the surface of the arc-shaped rack 20, and a limit pin 25 is set on the inner side of the cover shell 6, and the limit pin 25 penetrates into the arc-shaped limit groove 24, and the movable range of the arc-shaped rack 20 is limited by the arc-shaped limit groove 24 and the limit pin 25.

[0030] Specific working principle:

[0031] During use of the utility model, through the filter screen 4 arranged on the inner side of the through groove 3, when the fan 5 rotates with the crankshaft of the engine body to blow the air flow to the engine body, the filter screen 4 can filter and intercept dust in the air, thereby effectively reducing the amount of dust attached to the engine body, thereby improving the heat dissipation efficiency and service life of the engine body. Through the filter screen cleaning component, when there is too much dust attached to the filter screen 4, it is only necessary to move the pressing plate 19, and the arc-shaped rack 20 is driven by the movable rod 18 to rotate around the connecting shaft 17, and the first gear 14 is driven to rotate by the arc-shaped rack 20, and the first gear 14 drives the second gear 15 to rotate synchronously. When the second gear 15 located between the two racks 12 rotates, the two racks 12 will respectively drive the two cleaning strips 8 to move to both sides, thereby brushing off the dust on the surface of the filter screen 4, and the brushed dust is discharged from the second air inlet 702 located at the bottom of the cover shell 6, thereby improving the ventilation performance of the filter screen 4.

[0032] The implementation modes of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A dust-proof engine for a garden pruning device, characterized in that: The invention comprises a shell (1), an engine body is installed inside the shell (1), a sawing assembly (2) is installed on one side of the shell (1), and the engine body is connected to the sawing assembly (2) by transmission, a through slot (3) is provided on one side of the shell (1), a filter (4) is installed on the inner side of the outer opening of the through slot (3), a fan (5) is installed on the inner side of the through slot (3) between the filter (4) and the engine body, and the fan (5) is fixedly connected to the crankshaft of the engine body, a cover (6) is provided on the surface of the shell (1) around the through slot (3), a filter cleaning assembly is installed between the cover (6) and the shell (1), a first air inlet (701) is provided on the side of the cover (6) away from the shell (1), and second air inlets (702) are provided on the top and bottom of the cover (6).

2. The dust-proof engine for garden pruning device according to claim 1, characterized in that: The filter screen cleaning assembly comprises two cleaning strips (8) symmetrically mounted on the inner side of the housing (6), a rubber brush strip (9) being arranged on one side of the cleaning strip (8) close to the filter screen (4), and two guide rods (10) being symmetrically arranged on the inner side of the housing (6) in an upper and lower manner, the two guide rods (10) respectively passing through the two cleaning strips (8), and the cleaning strips (8) are slidably connected to the guide rods (10).

3. The dust-proof engine for garden pruning device as claimed in claim 2, characterized in that: A connecting block (11) is provided on the side of the cleaning strip (8) away from the filter screen (4); a rack (12) is fixedly connected to the side of the connecting block (11) away from the cleaning strip (8); a fixed shaft (13) is provided inside the housing (6) between the two racks (12); a first gear (14) is sleeved on the surface of the fixed shaft (13), and the two racks (12) are meshingly connected to the first gear (14).

4. The dust-proof engine for garden pruning device as claimed in claim 3, characterized in that: A second gear (15) is provided on a side of the first gear (14) away from the filter screen (4); a movable groove (16) is provided on one side of the housing (6); a connecting shaft (17) is provided on the inner side of the housing (6) at a position close to the movable groove (16); a movable rod (18) is sleeved on the outer side of the connecting shaft (17); one end of the movable rod (18) passes through the inner side of the movable groove (16), and a pressing plate (19) is provided on the end that passes through; an arc-shaped rack (20) is fixedly connected to one end of the movable rod (18) close to the second gear (15), and the arc-shaped rack (20) is meshingly connected to the second gear (15).

5. The dust-proof engine for garden pruning device as claimed in claim 4, characterized in that: The circular shape of the arc-shaped rack (20) is arranged concentrically with the connecting shaft (17).

6. The dust-proof engine for garden pruning device as claimed in claim 4, characterized in that: A first fixing column (21) is provided on one side of the movable rod (18) between the connecting shaft (17) and the arc-shaped rack (20), a second fixing column (22) is provided on the inner side of the cover shell (6), a tension spring (23) is installed on the inner side of the cover shell (6) between the first fixing column (21) and the second fixing column (22), and two ends of the tension spring (23) are respectively connected to the first fixing column (21) and the second fixing column (22).

7. The dust-proof engine for garden pruning device as claimed in claim 4, characterized in that: An arc-shaped limiting groove (24) is provided on the surface of the arc-shaped rack (20), a limiting pin (25) is provided on the inner side of the cover shell (6), and the limiting pin (25) penetrates into the arc-shaped limiting groove (24).

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