Chain saw with air filter device

Abstract

The utility model discloses a chain saw with an air filter device, which comprises a box body, and the air filter device is arranged in the box body. A positioning base is arranged in the box body, and the air filter device is detachably mounted on the positioning base; the air filter device comprises a framework body and a filter screen, a groove hole is formed in the framework body, and the filter screen is arranged in the groove hole; an insertion block is arranged on the framework body, an insertion groove is formed in the positioning base, and the insertion block is transversely inserted and limited in the insertion groove; a hasp part is arranged on the framework body, a buckling groove is formed in the hasp part, a buckling block is arranged on the positioning base, and the buckling block is buckled in the buckling groove. Impurities such as dust and particles in air can be filtered through the air filtering device, the impurities are prevented from entering the chain saw to influence other parts, the service life is prolonged, the inserting block is matched with the inserting groove, the hasp part is buckled with the buckling block, the connection stability and reliability of the air filtering device on the positioning base are ensured, and the service life is prolonged. It is ensured that the air filtering device does not loosen or fall off in the chain sawing process, and therefore the air filtering effect is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of chainsaw technology, specifically relating to a chainsaw with an air filter device. Background Technology

[0002] A chainsaw is a hand-held saw powered by a gasoline engine, primarily used for logging and timber processing. Due to its high efficiency and maneuverability, it is widely used in forestry, landscaping, and other fields. Based on its application, it can be divided into ordinary logging chainsaws, timber processing chainsaws, and garden chainsaws. Ordinary logging chainsaws have higher power and are suitable for felling large trees in forests; garden chainsaws are relatively small and lightweight, suitable for tasks such as pruning branches in urban landscaping. When a chainsaw is working, the engine needs to draw in a large amount of air for combustion. If dust, particles, and other impurities in the air enter the engine, it will accelerate the wear of components such as pistons and cylinders, reducing engine performance and lifespan. Utility Model Content

[0003] The purpose of this utility model is to solve the above-mentioned technical problems existing in the prior art, and to provide a chainsaw with an air filter device. The structure is reasonably designed, and the air filter device can filter dust, particles and other impurities in the air, preventing them from entering the inside of the chainsaw and affecting other components, thus extending the service life. The air filter device and the positioning base are detachable, which can facilitate the disassembly, cleaning or replacement of the air filter device. The insertion block and the slot cooperate, and the buckle part and the fastener block are fastened to ensure that the connection of the air filter device on the positioning base is stable and reliable, ensuring that the air filter device will not loosen or fall off during the operation of the chainsaw, thereby ensuring the air filtration effect.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A chainsaw with an air filter includes a housing, within which the air filter is housed. A positioning base is provided within the housing, and the air filter is detachably mounted on the positioning base. The air filter includes a frame and a filter screen. The frame has slots, and the filter screen is disposed within these slots. A block is provided on the frame, and a slot is provided on the positioning base. The block is laterally inserted and limited within the slot. A latch is provided on the frame, with a latch groove. A latch block is provided on the positioning base, and the latch block engages with the latch groove. This invention features a reasonable structural design and strong practicality. The air filter effectively filters dust, particles, and other impurities from the air, preventing them from entering the chainsaw and affecting other components. The detachable installation of the air filter and positioning base facilitates disassembly, cleaning, and replacement. The engagement of the block and slot, and the latch and latch block, ensure a stable and reliable connection of the air filter on the positioning base, preventing loosening or detachment during chainsaw operation and thus guaranteeing effective air filtration.

[0006] Furthermore, the latch is provided with an extension protrusion, which adds a part to the latch that is easy to grip and apply force. When the air filter needs to be disassembled, the operator can more easily pinch or turn the extension protrusion to easily disengage the latch from the latch groove, which facilitates the disassembly and assembly of the air filter and improves efficiency.

[0007] Furthermore, the frame body includes a frame portion and a raised arch portion, which are integrally molded structures. The top and sides of the raised arch portion are provided with slots and holes. The integrally molded structure can ensure the overall structural strength and stability of the frame body, enabling the air filter device to better withstand external impacts. The raised arch portion is similar to an arch design and has good mechanical properties. Compared with the design with slots and holes on the plane, the arch design can increase the effective installation area of ​​the filter screen, thereby increasing the contact area between the air and the filter screen and improving the air filtration efficiency.

[0008] Furthermore, a limiting slot is provided around the bottom side of the frame portion. The frame portion is fixed and engaged with the positioning base by the limiting slot. The surrounding limiting slot can form a continuous limiting structure at the bottom of the frame portion, which facilitates the installation and positioning of the air filter device on the positioning base, improves the ease of installation, and ensures a stable connection between the air filter device and the positioning base.

[0009] Furthermore, a positioning post is provided inside the positioning base, and an insertion hole is provided inside the positioning post. A positioning rod is provided on the bottom surface of the raised arch. The positioning rod is fitted with the insertion hole with a clearance fit. The positioning rod is vertically inserted into the insertion hole. The fit between the positioning rod and the insertion hole provides further positioning for the installation of the air filter device, improving the accuracy of the air filter device's installation position, thereby improving installation efficiency. The vertical insertion fit with a clearance fit allows the positioning rod to be easily inserted and removed, facilitating the disassembly and assembly process of the air filter device, reducing installation difficulty, and further enhancing the connection stability between the air filter device and the positioning base.

[0010] Furthermore, the inlet end of the socket is flared and the end of the positioning rod is a conical protrusion. The structure is cleverly and reasonably designed. The flared design expands the inlet range of the socket, reducing the difficulty of aligning the positioning rod with the socket. The conical protrusion design also makes the insertion process of the positioning rod smoother, reducing the adjustment time during the installation process and improving installation efficiency.

[0011] Furthermore, a limiting slot is provided on the bottom surface of the raised arch, and a limiting block is provided on the positioning base. The frame body is movably inserted into the limiting block through the limiting slot. The limiting slot and the limiting block are further engaged to improve the positioning accuracy of the air filter device and increase the installation efficiency. In addition, the engagement of the block and the slot, and the fastening of the latch and the fastening block can effectively improve the installation stability of the air filter device and limit the displacement or shaking of the air filter device after installation.

[0012] Furthermore, the bottom surface of the raised arch is provided with a raised arc, and the positioning base is provided with an auxiliary arc block. The raised arc and the auxiliary arc block are interlocked. The interlocking of the raised arc and the auxiliary arc block, along with the insertion of the plug and the slot, the fastening of the latch and the fastening block, and the engagement of the limiting slot and the limiting slot, can constrain the air filter device and the positioning base from multiple directions. This effectively restricts the movement and rotation of the air filter device in the horizontal and vertical directions, making the air filter device more securely installed on the positioning base and reducing the possibility of displacement or loosening due to vibration and impact.

[0013] Furthermore, the top cross-section of the insert is smaller than the bottom cross-section. This design makes it easier for the insert to be inserted into the corresponding slot, reducing installation difficulty and improving actual installation efficiency.

[0014] This utility model, by adopting the above-mentioned technical solution, has the following beneficial effects:

[0015] This utility model has a reasonable structural design and strong practicality. The air filter device can filter dust, particles and other impurities in the air, preventing them from entering the chainsaw and affecting other components, thus extending its service life. The air filter device and the positioning base are detachable, which facilitates the disassembly, cleaning or replacement of the air filter device. The insertion block and slot cooperate, and the buckle part and the fastener block are fastened to ensure that the connection of the air filter device on the positioning base is stable and reliable, ensuring that the air filter device will not loosen or fall off during the operation of the chainsaw, thereby ensuring the air filtration effect. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the structure of a chainsaw with an air filter device according to the present invention;

[0018] Figure 2 for Figure 1 A structural diagram from another perspective;

[0019] Figure 3 This is a schematic diagram of the structure of the hollow fiber filter device of this utility model;

[0020] Figure 4 This is a schematic diagram showing the position of the insert block on the skeleton body in this utility model;

[0021] Figure 5 This is a schematic diagram of the bottom structure of the hollow fiber filter device of this utility model;

[0022] Figure 6 This is a schematic diagram showing the position and structure of the positioning base within the box in this utility model;

[0023] Figure 7 for Figure 6A structural diagram from another perspective;

[0024] Figure 8 for Figure 7 A magnified schematic diagram of the structure at point I in the middle.

[0025] In the diagram, 1-box body; 2-air filter device; 3-positioning base; 4-frame body; 5-slot hole; 6-insertion block; 7-slot; 8-fastener part; 9-fastener groove; 10-fastener block; 11-extension protrusion; 12-border part; 13-protruding arch; 14-limiting slot; 15-positioning post; 16-insertion hole; 17-positioning rod; 18-conical protrusion; 19-limiting slot; 20-limiting insertion block; 21-protruding arc; 22-auxiliary arc block. Detailed Implementation

[0026] like Figures 1 to 8 As shown, this utility model discloses a chainsaw with an air filter device, including a housing 1, an air filter device 2 disposed inside the housing 1, and a positioning base 3 disposed inside the housing 1, on which the air filter device 2 is detachably mounted. The air filter device 2 includes a frame 4 and a filter screen (not shown in the figure). The frame 4 has slots 5, and the filter screen is disposed in the slots 5. The frame 4 has an insert 6, and the positioning base 3 has a slot 7. The insert 6 is laterally inserted and limited within the slot 7. The lateral insertion method facilitates the assembly and disassembly of the air filter device 2 and the positioning base 3. The top cross-section of the insert 6 is smaller than the bottom cross-section of the insert 6. This design makes it easier for the insert 6 to be inserted into the matching slot 7, reducing the installation difficulty and improving the actual installation efficiency.

[0027] The frame body 4 is provided with a fastening part 8, which has a fastening groove 9. The positioning base 3 is provided with a fastening block 10, which is fastened into the fastening groove 9. The insert block 6 is inserted into the slot 7, which limits the air filter device 2 in the horizontal direction and prevents the air filter device 2 from shifting laterally. The fastening block 10, fastened into the fastening groove 9, provides additional fastening force for the connection and increases the vertical stability of the air filter device 2, thereby effectively ensuring the installation firmness of the air filter device 2 and guaranteeing the air filtration effect of the air filter device 2. The fastening part 8 is provided with an extension protrusion 11, which is equivalent to adding a part of the fastening part 8 that is easy to grip and apply force. When it is necessary to disassemble the air filter device 2, the operator can more easily pinch or pull the extension protrusion 11, thereby easily disengaging the fastening block 10 from the fastening groove 9, facilitating the disassembly and assembly of the air filter device 2 and improving efficiency.

[0028] The frame body 4 includes a frame portion 12 and a raised arch portion 13. The frame portion 12 and the raised arch portion 13 are integrally formed. The top and sides of the raised arch portion 13 are provided with slots and holes 5. The integrally formed structure can ensure the overall structural strength and stability of the frame body 4, so that the air filter device 2 can better withstand external impact. The raised arch portion 13 is similar to an arch design and has good mechanical properties. Compared with the design with slots and holes 5 on the plane, the arch design can increase the effective installation area of ​​the filter screen, thereby increasing the contact area between the air and the filter screen and improving the air filtration efficiency.

[0029] A limiting slot 14 is provided around the bottom side of the frame part 12. The frame part 12 is limited and engaged on the positioning base 3 by the limiting slot 14. The limiting slot 14 can form a continuous limiting structure at the bottom of the frame part 12, which facilitates the installation and positioning of the air filter device 2 on the positioning base 3, improves the ease of installation, and ensures a stable connection between the air filter device 2 and the positioning base 3.

[0030] A positioning post 15 is provided inside the positioning base 3, and an insertion hole 16 is provided inside the positioning post 15. A positioning rod 17 is provided on the bottom surface of the raised arch 13. The positioning rod 17 is clearance-fitted with the insertion hole 16. The positioning rod 17 is vertically inserted into the insertion hole 16. The cooperation between the positioning rod 17 and the insertion hole 16 provides further positioning for the installation of the air filter device 2, improves the correctness of the installation position of the air filter device 2, and thus improves the installation efficiency. The vertical insertion and clearance fit allows the positioning rod 17 to be smoothly inserted and removed, which facilitates the disassembly and assembly process of the air filter device 2, reduces the installation difficulty, and can further enhance the connection stability between the air filter device 2 and the positioning base 3. The inlet end of the socket 16 is flared and trumpet-shaped, and the end of the positioning rod 17 is a tapered protrusion 18. The structure is cleverly and reasonably designed. The flared and trumpet-shaped design expands the inlet range of the socket 16, reducing the difficulty of aligning the positioning rod 17 with the socket 16. The tapered protrusion 18 design also makes the insertion process of the positioning rod 17 smoother, reducing the adjustment time during the installation process and improving the installation efficiency and convenience.

[0031] The bottom surface of the raised arch 13 is provided with a limiting slot 19, and the positioning base 3 is provided with a limiting plug 20. The frame body 4 is movably inserted into the limiting plug 20 through the limiting slot 19. The limiting slot 19 and the limiting plug 20 are further engaged to further improve the positioning accuracy of the air filter device 2 and improve the installation efficiency. In addition, the engagement of the plug 6 with the slot 7 and the fastening of the buckle 8 with the buckle 10 can effectively improve the installation stability of the air filter device 2 and limit the displacement or shaking of the air filter device 2 after installation.

[0032] The bottom surface of the raised arch 13 is provided with a raised arc 21, and the positioning base 3 is provided with an auxiliary arc block 22. The raised arc 21 and the auxiliary arc block 22 are interlocked with each other. The interlocking of the raised arc 21 and the auxiliary arc block 22, along with the insertion of the plug 6 into the slot 7, the fastening of the buckle 8 into the buckle 10, and the engagement of the limiting slot 19 into the limiting slot 19, can constrain the air filter device 2 and the positioning base 3 from multiple directions, effectively limiting the movement and rotation of the air filter device 2 in the horizontal and vertical directions, making the air filter device 2 more securely installed on the positioning base 3, and reducing the possibility of displacement or loosening due to vibration and impact.

[0033] This utility model has a reasonable structural design and strong practicality. The air filter device 2 can filter dust, particles and other impurities in the air, preventing them from entering the chainsaw and affecting other components, extending the service life of the chainsaw equipment, and ensuring the operating performance of the equipment. The air filter device 2 and the positioning base 3 are detachable, which can facilitate the disassembly, cleaning or replacement of the air filter device 2. The horizontal insertion of the insert 6 and the slot 7, and the fastening of the buckle 8 and the buckle 10, ensure that the connection of the air filter device 2 on the positioning base 3 is stable and reliable, ensuring that the air filter device 2 will not loosen or fall off during the operation of the chainsaw, thereby ensuring the air filtration effect and facilitating actual disassembly and maintenance.

[0034] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. A chainsaw with an air filter, comprising a housing, wherein the air filter is disposed within the housing; Its features are: The housing is provided with a positioning base, and the air filter device is detachably installed on the positioning base; the air filter device includes a frame body and a filter screen, the frame body is provided with slots and holes, and the filter screen is disposed in the slots and holes; The frame body is provided with a plug, and the positioning base is provided with a slot. The plug is laterally inserted and limited in the slot. The frame body is provided with a buckle part, the buckle part is provided with a buckle groove, the positioning base is provided with a buckle block, and the buckle block is fastened into the buckle groove.

2. A chainsaw with an air filter according to claim 1, characterized in that: The buckle portion is provided with an extension protrusion.

3. A chainsaw with an air filter according to claim 1, characterized in that: The skeleton includes a frame portion and a raised arch portion, which are integrally formed structures. The top and sides of the raised arch portion are provided with the slot holes.

4. A chainsaw with an air filter according to claim 3, characterized in that: The bottom side of the frame portion is provided with a limiting slot, and the frame portion is limited and locked onto the positioning base through the limiting slot.

5. A chainsaw with an air filter according to claim 3, characterized in that: The positioning base is provided with a positioning post, the positioning post is provided with an insertion hole, and the bottom surface of the raised arch is provided with a positioning rod. The positioning rod is clearance-fitted with the insertion hole and is vertically inserted into the insertion hole.

6. A chainsaw with an air filter according to claim 5, characterized in that: The inlet end of the socket is flared and funnel-shaped, and the end of the positioning rod is a tapered protrusion.

7. A chainsaw with an air filter according to claim 3, characterized in that: The bottom surface of the raised arch is provided with a limiting slot, and the positioning base is provided with a limiting block. The skeleton body is movably inserted into the limiting block through the limiting slot.

8. A chainsaw with an air filter according to claim 3, characterized in that: The bottom surface of the raised arch is provided with a raised arc, and the positioning base is provided with an auxiliary arc block. The raised arc and the auxiliary arc block are interlocked with each other.

9. A chainsaw with an air filter according to claim 1, characterized in that: The top cross-section of the insert is smaller than the bottom cross-section of the insert.

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