A dust filter mechanism for handheld power tools
The design of the dust collection box and fan solves the problem of dust flying during the use of handheld power tools, thus improving safety and comfort.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANGZHOU JINLI POWER TOOLS CO LTD
- Filing Date
- 2025-06-10
- Publication Date
- 2026-06-30
AI Technical Summary
Dust generated during the use of handheld power tools can easily become airborne, posing a health hazard to the operator.
A dust-proof filtration mechanism including a dust collection box, a fan, and a filter screen was designed. The fan draws air to collect dust into the dust collection box, and the dust is filtered through the filter screen to prevent dust from flying.
It effectively prevents dust from harming the operator's health, improves safety and comfort during use, and facilitates the cleaning and maintenance of the dust collection box and filter.
Smart Images
Figure CN224425257U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of handheld power tool technology, specifically to a dust filter mechanism for handheld power tools. Background Technology
[0002] Handheld power tools, with their compact and flexible features, play an important role in various work scenarios. Handheld grinders, as a typical example, are easy to operate and can precisely adapt to different work needs.
[0003] In industrial manufacturing, it can be used for fine grinding of metal parts, removing burrs and oxide layers, making the workpiece surface smoother and flatter, laying a good foundation for subsequent processing or assembly. During construction, workers use it to polish materials such as stone and wood, shaping them into ideal forms and surface textures, enhancing the architectural aesthetics.
[0004] In home renovation, a handheld sander is indispensable. Whether repairing wall imperfections or refinishing furniture, it can handle it with ease. Its simple operation allows ordinary users to learn quickly and easily, greatly improving renovation efficiency and quality, and providing strong support for creating a comfortable and beautiful living environment.
[0005] While handheld power tools offer high efficiency and convenience, they also pose significant safety hazards. Take common angle grinders and handheld polishers as examples: during operation, the high-speed rotating grinding wheel or tool violently rubs against the workpiece, generating a large amount of dust. This dust is fine and has a certain degree of hardness, flying everywhere with the movement of the tool. Prolonged exposure to such an environment can easily cause the fine dust to enter the lungs through the respiratory tract, leading to serious respiratory diseases such as pneumoconiosis. Simultaneously, some dust may adhere to the skin surface, causing skin allergies, itching, and other problems, posing a significant threat to the operator's health. Utility Model Content
[0006] The purpose of this utility model is to provide a dust filter mechanism for handheld power tools, which solves the problem that handheld power tools easily generate dust during use, which can easily cause injury to the operator.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a dustproof and filtering mechanism for a handheld power tool, comprising a body, a housing fixedly connected to the upper end of the body, a fixed pipe fixedly connected inside the housing, a fan fixedly installed inside the housing, a baffle fixedly connected inside the housing, a filter screen slidably connected inside the housing, the filter screen contacting the baffle, a cover contacting the upper end of the housing, a limit plate contacting the outer side of the cover, a limit block fixedly connected to the outer side of the housing, a sliding rod fixedly connected to the side of the limit plate near the cover, a slider fixedly connected to the upper end of the sliding rod, a guide rod fixedly connected inside the cover, the guide rod slidably connected to the slider, a first spring provided on the outer side of the guide rod, and a disassembly mechanism fixedly connected inside the housing.
[0008] Preferably, the limiting plate is in contact with the box body, and the limiting plate is slidably connected with the limiting block. Through the design of the limiting plate, the lid can be limited.
[0009] Preferably, the slide rod is slidably connected to the cover, and the slider is slidably connected to the cover. Through the design of the slide rod and the slider, the limiting plate can be limited.
[0010] Preferably, one end of the first spring contacts the cover, and the other end of the first spring contacts the slider. Through the design of the first spring, the limiting plate can be driven to limit the cover.
[0011] Preferably, the disassembly mechanism includes a sleeve, which is fixedly connected inside the housing. A top rod is slidably connected inside the sleeve, and a top plate is fixedly connected to the end of the top rod away from the sleeve. A second spring is provided inside the sleeve, with one end of the second spring contacting the sleeve and the other end of the second spring contacting the top rod. Through the design of the disassembly mechanism, the filter screen can be easily disassembled.
[0012] Preferably, the top plate is in contact with the housing and the filter screen. The design of the top plate ensures that the filter screen remains stable after installation.
[0013] Preferably, a limiting ring is fixedly connected inside the sleeve, and the limiting ring is slidably connected to the push rod. Through the design of the limiting ring, the push rod can be limited.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] 1. This utility model innovatively configures key components such as a dust collection box and a fan. During operation, the fan draws air into the dust collection box, and under the action of air pressure difference, the fixed pipe efficiently collects dust. This ingenious dust collection design can effectively prevent dust from flying around during the use of handheld power tools, build a protective barrier for the operator, effectively solve the thorny problem of dust harming the operator's health, and significantly improve the safety and comfort of use.
[0016] 2. This utility model, by setting up a limiting plate, a limiting block, a first spring and other components, allows the limiting plate to slide off the limiting block, thereby releasing the limiting of the cover and enabling the cleaning of the box. The addition of a top plate, a second spring and other components facilitates the disassembly and cleaning of the filter screen. Attached Figure Description
[0017] Figure 1 This is a perspective view of the overall structure of this utility model;
[0018] Figure 2 For the present utility model Figure 1 A partial three-dimensional structural diagram;
[0019] Figure 3 For the present utility model Figure 1 Enlarged frontal sectional view of a local structure;
[0020] Figure 4 For the present utility model Figure 3 Enlarged view of part A of the structure.
[0021] In the diagram: 1. Body; 2. Housing; 21. Fixing pipe; 22. Fan; 23. Baffle; 24. Filter screen; 3. Cover; 31. Limiting plate; 32. Limiting block; 33. Sliding rod; 34. Sliding block; 35. Guide rod; 36. First spring; 4. Disassembly mechanism; 41. Sleeve; 42. Top rod; 43. Top plate; 44. Limiting ring; 45. Second spring. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figure 1-4A dust filter mechanism for handheld power tools includes a body 1, a housing 2 fixedly connected to the upper end of the body 1, a fixed pipe 21 fixedly connected inside the housing 2, a fan 22 fixedly installed inside the housing 2, a baffle 23 fixedly connected inside the housing 2, a filter screen 24 slidably connected inside the housing 2, the filter screen 24 contacting the baffle 23, a cover 3 contacting the upper end of the housing 2, a limit plate 31 contacting the outer side of the cover 3, a limit block 32 fixedly connected to the outer side of the housing 2, the limit plate 31 contacting the housing 2, and the limit plate 31 and the limit block 32 slidably connected. Through the design of the limit plate 31, the cover 3 can be limited.
[0024] Please see Figure 2-4 A sliding rod 33 is fixedly connected to the side of the limiting plate 31 near the cover 3. A slider 34 is fixedly connected to the upper end of the sliding rod 33. The sliding rod 33 is slidably connected to the cover 3, and the slider 34 is slidably connected to the cover 3. Through the design of the sliding rod 33 and the slider 34, the limiting plate 31 can be limited. A guide rod 35 is fixedly connected inside the cover 3. The guide rod 35 is slidably connected to the slider 34. A first spring 36 is provided on the outside of the guide rod 35. One end of the first spring 36 contacts the cover 3, and the other end of the first spring 36 contacts the slider 34. Through the design of the first spring 36, the limiting plate 31 can be driven to limit the cover 3. A disassembly mechanism 4 is fixedly connected inside the box 2.
[0025] Please see Figure 2-4 The disassembly mechanism 4 includes a sleeve 41. The sleeve 41 is fixedly connected inside the housing 2. A top rod 42 is slidably connected inside the sleeve 41. A top plate 43 is fixedly connected to the end of the top rod 42 away from the sleeve 41. The top plate 43 contacts the housing 2 and the filter screen 24. The design of the top plate 43 can keep the filter screen 24 stable after installation. A limit ring 44 is fixedly connected inside the sleeve 41. The limit ring 44 is slidably connected to the top rod 42. The design of the limit ring 44 can limit the top rod 42. A second spring 45 is provided inside the sleeve 41. One end of the second spring 45 contacts the sleeve 41, and the other end of the second spring 45 contacts the top rod 42. The design of the disassembly mechanism 4 can facilitate the disassembly of the filter screen 24.
[0026] The specific implementation process of this utility model is as follows: When in use, by starting the fan 22, the fan 22 draws air into the box 2, and the box 2 sucks dust through the fixed pipe 21. The airflow carries the dust into the box 2, and after being filtered by the filter screen 24, it is drawn away by the fan 22. This can collect the dust and prevent the dust from flying.
[0027] By moving the limiting plate 31 away from the cover 3, the limiting plate 31 drives the sliding rod 33 to move, and the sliding rod 33 squeezes the first spring 36 through the slider 34, causing the limiting plate 31 to slide off the limiting block 32, thus releasing the limitation on the cover 3, allowing the cover 3 to be disassembled, and thus facilitating the cleaning of the box 2.
[0028] By moving the top plate 43 away from the filter screen 24, the top plate 43 drives the top rod 42 to slide inside the sleeve 41, causing the top rod 42 to press against the second spring 45 and making the top plate 43 no longer in contact with the filter screen 24, the restriction on the filter screen 24 can be released, and the filter screen 24 can be disassembled and cleaned.
[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A dust filter mechanism for a hand-held power tool, comprising a housing (1), characterized in that: The upper end of the body (1) is fixedly connected to a box (2), the inside of the box (2) is fixedly connected to a fixed pipe (21), the inside of the box (2) is fixedly installed with a fan (22), the inside of the box (2) is fixedly connected to a baffle (23), the inside of the box (2) is slidably connected to a filter (24), the filter (24) is in contact with the baffle (23), the upper end of the box (2) is in contact with a cover (3), and the outer side of the cover (3) is in contact with a limit plate (31). A limiting block (32) is fixedly connected to the outside of the box (2). A sliding rod (33) is fixedly connected to the side of the limiting plate (31) near the cover (3). A slider (34) is fixedly connected to the upper end of the sliding rod (33). A guide rod (35) is fixedly connected to the inside of the cover (3). The guide rod (35) is slidably connected to the slider (34). A first spring (36) is provided on the outside of the guide rod (35). A disassembly mechanism (4) is fixedly connected to the inside of the box (2).
2. The dustproof filtering mechanism of a handheld electric tool according to claim 1, characterized in that: The limiting plate (31) is in contact with the box body (2), and the limiting plate (31) is slidably connected with the limiting block (32).
3. The dustproof filtering mechanism of a handheld electric tool according to claim 1, characterized in that: The slide bar (33) is slidably connected to the cover (3), and the slider (34) is slidably connected to the cover (3).
4. The dust-proof filter mechanism of the handheld electric tool according to claim 1, characterized in that: One end of the first spring (36) is in contact with the cover (3), and the other end of the first spring (36) is in contact with the slider (34).
5. The dust-proof filter mechanism of a hand-held electric tool according to claim 1, characterized in that: The disassembly mechanism (4) includes a sleeve (41), which is fixedly connected inside the housing (2). A top rod (42) is slidably connected inside the sleeve (41). A top plate (43) is fixedly connected to one end of the top rod (42) away from the sleeve (41). A second spring (45) is provided inside the sleeve (41). One end of the second spring (45) contacts the sleeve (41), and the other end of the second spring (45) contacts the top rod (42).
6. The dust-proof filter mechanism of a hand-held electric tool according to claim 5, characterized in that: The top plate (43) is in contact with the housing (2) and the top plate (43) is in contact with the filter screen (24).
7. The dust-proof filter mechanism of a hand-held electric tool according to claim 5, characterized in that: The sleeve (41) is fixedly connected to a limiting ring (44), which is slidably connected to the top rod (42).