Angle grinder with dust removal function
By designing an angle grinder with dust removal function, and using air pumps and filtration systems to remove dust and debris, the safety hazards and low dust removal efficiency of existing angle grinders are solved, and a more efficient and safe working environment is achieved.
Patent Information
- Application Number
- CN202421685756.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-17
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-07-17
AI Technical Summary
Existing angle grinders generally do not have dust removal protection function, and will generate more smoke or Mars during use, which poses safety hazards. The existing simple dust removal function is relatively low in efficiency and is inconvenient to use.
An angle grinder with dust removal function was designed, including the angle grinder body, power box, protective cover, filter compartment, flow tube, threaded plate, debris filter plate and dust filter plate. Negative pressure is formed through the air pump, dust and debris are extracted, and filtered and collected through the filter plate to avoid filter blockage and improve efficiency.
Effectively remove dust and debris from the angle grinding operation, improves the safety and convenience of the working environment, avoids the harm of smoke and Mars to the human body, and improves dust removal efficiency.
Smart Images
Figure CN222920244U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of angle grinders, and specifically relates to an angle grinder with a dust removal function. Background Technique
[0002] An angle grinder, also known as a grinding machine or a disc grinder, is a grinding tool used for cutting and grinding fiberglass. An angle grinder is a portable electric tool that uses fiberglass for cutting and grinding, and is mainly used for cutting, grinding, and brushing metals and stones, etc. Common models of angle grinders are classified into 100 mm (4 inches), 125 mm (5 inches), 150 mm (6 inches), 180 mm (7 inches), and 230 mm (9 inches) according to the specifications of the accessories used. The small-sized angle grinders commonly used in Europe and America are 115 mm.
[0003] During the use of an angle grinder, it is usually necessary to manually operate on the objects to be ground and cut. During the operation, a large amount of dust or sparks will be generated. The operator may inhale the dust or be burned by the sparks during the operation, thus posing a certain safety hazard. The existing angle grinders generally do not have the function of dust removal and protection, or have a relatively simple dust removal and protection function with low efficiency, resulting in inconvenience in use. Based on this, we propose an angle grinder with a dust removal function. Content of the Utility Model
[0004] The purpose of the utility model is to provide an angle grinder with a dust removal function to solve the problems raised in the above background technique.
[0005] To achieve the above object, the present utility model provides the following technical solution: An angle grinder with a dust removal function, comprising an angle grinder body, one end of the angle grinder body is provided with a power box, one end of the angle grinder body is provided with a protective cover, the top of the power box is fixedly installed with a filter chamber, the top of the filter chamber is communicated with a diversion pipe, a threaded plate is fixedly installed inside the diversion pipe, the top end of the diversion pipe is communicated with an annular pipe, one side of the filter chamber is movably installed with a sealed hatch door, two groups of rubber blocks are fixedly installed inside the filter chamber, a debris filter plate is movably installed inside the filter chamber, a dust filter plate is movably installed inside the filter chamber, four sliding columns are movably inserted inside both the debris filter plate and the dust filter plate, four first springs are sleeved outside the four sliding columns, the bottom ends of the four first springs are fixedly installed with a support ring one, four second springs are sleeved outside the four sliding columns, the top ends of the four second springs are fixedly installed with a support ring two, an air pump is communicated with the bottom of one side of the filter chamber, an inclined pipe is communicated with one side of the filter chamber, a sealing plug is threadedly connected to the outside of one end of the inclined pipe, an elastic mechanism is fixedly installed at the top of the inner cavity of one end of the inclined pipe, a limiting cone is fixedly installed at the bottom end of the elastic mechanism, a second contact is fixedly installed at the top of one end of the limiting cone, a first contact is fixedly installed at the top of the inner cavity of one end of the inclined pipe, and an indicator light is arranged on the outside of the inclined pipe.
[0006] Preferably, both ends of the annular pipe away from the diversion pipe are communicated with the inner sides of both ends of the protective cover, the input end of the air pump is communicated with the bottom of the filter chamber through a pipeline, and the air pump is fixedly installed on the outside of the power box.
[0007] Preferably, the two groups of rubber blocks are symmetrically and evenly distributed obliquely in a rectangular shape inside the filter chamber, the four sliding columns are symmetrically and evenly distributed inside the filter chamber, and the top ends and bottom ends of the four sliding columns are fixedly installed on the inner wall of the filter chamber.
[0008] Preferably, the top ends of the four first springs are respectively fixedly installed at the bottom of one end of the angle grinder body and the dust filter plate, the support ring one is fixedly installed on the outside of the sliding column, the bottom ends of the four second springs are respectively fixedly installed at the top of one end of the debris filter plate and the dust filter plate, and the support ring two is fixedly installed on the outside of the sliding column.
[0009] Preferably, the positions of the first contact and the second contact correspond to each other, and the switch ends of the indicator light are electrically connected to one ends of the first contact and the second contact respectively.
[0010] Preferably, the inclined pipe is in an inclined shape, both the debris filter plate and the dust filter plate are in an inclined shape, and one end of the debris filter plate and the dust filter plate inclines towards the input end of the inclined pipe.
[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: When the device is in use, the operator performs angle grinding operations through the angle grinder body. At the same time, the air pump is started. The air pump forms a negative pressure inside the filter chamber and extracts the dust and debris generated during the angle grinding operation inside the protective cover through the diversion pipe and the annular pipe. The debris and air flow are rotated under the spiral action of the threaded plate, which can initially increase the number of turns and rotation, facilitating uniform filtration. At this time, the dust and debris are filtered by the debris filter plate and the dust filter plate respectively. The filtered dust and debris accumulate on the tops of the debris filter plate and the dust filter plate and are dumped into the inclined pipe under the action of their inclination, facilitating collection and avoiding filter blockage, thus improving the filtration efficiency;
[0012] Through the arranged limiting cone, after the dust and debris inside the inclined pipe are filled up, the accumulation area squeezes the limiting cone at this time, causing the limiting cone to squeeze the elastic mechanism to move upward, making the first contact and the second contact contact, connecting the switch of the indicator light, and lighting up the indicator light. Therefore, the operator can open the sealing plug to dump the sundries inside the inclined pipe, facilitating the operation and increasing the convenience. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a front view three-dimensional external structure schematic diagram of the present utility model.
[0014] Figure 2 It is a rear view three-dimensional external structure schematic diagram of the present utility model.
[0015] Figure 3 It is a rear view sectional structure schematic diagram of the present utility model.
[0016] Figure 4 For the present utility model Figure 3 The enlarged structure schematic diagram at position A.
[0017] Figure 5 For the present utility model Figure 3 The enlarged structure schematic diagram at position B.
[0018] In the figure: 1. Angle grinder body; 2. Annular pipe; 3. Diversion pipe; 4. Protective cover; 5. Sealed cabin door; 6. Limiting cone; 7. Air pump; 8. Filter chamber; 9. Power box; 10. Sealing plug; 11. Inclined pipe; 12. Threaded plate; 13. Debris filter plate; 14. Slide column; 15. First spring; 16. Rubber block; 17. First support ring; 18. Dust filter plate; 19. Second support ring; 20. Second spring; 21. Elastic mechanism; 22. Indicator light; 23. First contact; 24. Second contact. SPECIFIC EMBODIMENTS
[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.
[0020] Please refer to Figures 1 - 5 , the present invention provides a technical solution: a angle grinder with a dust removal function, including an angle grinder body 1, a power box 9 is arranged at one end of the angle grinder body 1, a protective cover 4 is arranged at one end of the angle grinder body 1, a filter chamber 8 is fixedly installed on the top of the power box 9, a diversion pipe 3 is communicated with the top of the filter chamber 8, a threaded plate 12 is fixedly installed inside the diversion pipe 3, a ring pipe 2 is communicated with the top end of the diversion pipe 3, a sealing cabin door 5 is movably installed on one side of the filter chamber 8, two groups of rubber blocks 16 are fixedly installed inside the filter chamber 8, a debris filter plate 13 is movably installed inside the filter chamber 8, a dust filter plate 18 is movably installed inside the filter chamber 8, four sliding columns 14 are movably inserted inside both the debris filter plate 13 and the dust filter plate 18, four first springs 15 are sleeved on the outer sides of the four sliding columns 14, a first support ring 17 is fixedly installed at the bottom ends of the four first springs 15, four second springs 20 are sleeved on the outer sides of the four sliding columns 14, a second support ring 19 is fixedly installed at the top ends of the four second springs 20, an air pump 7 is communicated with the bottom of one side of the filter chamber 8, an inclined pipe 11 is communicated with one side of the filter chamber 8, a sealing plug 10 is threadedly connected to the outer side of one end of the inclined pipe 11, an elastic mechanism 21 is fixedly installed at the top of the inner cavity of one end of the inclined pipe 11, a limiting cone 6 is fixedly installed at the bottom end of the elastic mechanism 21, a second contact 24 is fixedly installed at the top of one end of the limiting cone 6, a first contact 23 is fixedly installed at the top of the inner cavity of one end of the inclined pipe 11, and an indicator light 22 is arranged on the outer side of the inclined pipe 11.
[0021] The working principle of the above technical solution: When in use, the operator performs angle grinding operation through the angle grinder body 1. At the same time, the air pump 7 is started. The air pump 7 forms a negative pressure inside the filter chamber 8 and extracts the dust and debris generated during the angle grinding operation inside the protective cover 4 through the diversion pipe 3 and the ring pipe 2. The debris and air flow are rotated under the spiral action of the threaded plate 12, which can initially increase the number of turns and rotate, facilitating uniform filtration. At this time, the dust and debris are filtered by the debris filter plate 13 and the dust filter plate 18 respectively. The filtered dust and debris accumulate on the tops of the debris filter plate 13 and the dust filter plate 18 and are poured into the inclined pipe 11 under their inclination, facilitating collection and avoiding filter blockage, thereby improving the filtration efficiency.
[0022] In another embodiment, as Figures 1 - 4As shown, both ends of the annular pipe 2 far from the diversion pipe 3 are connected to the inner sides of both ends of the protective cover 4. The input end of the air pump 7 is connected to the bottom of the filter chamber 8 through a pipe, and the air pump 7 is fixedly installed on the outer side of the power box 9.
[0023] The annular pipe 2 and the diversion pipe 3 can extract the soot and debris generated at both ends of the protective cover 4 during operation, increasing the cleaning efficiency. Different from single-direction extraction, the efficiency is further increased.
[0024] In another embodiment, as Figure 3 and Figure 4 shown, two groups of rubber blocks 16 are symmetrically and evenly distributed obliquely in a rectangle inside the filter chamber 8. Four sliding columns 14 are symmetrically and evenly distributed inside the filter chamber 8. The top and bottom ends of the four sliding columns 14 are fixedly installed on the inner wall of the filter chamber 8.
[0025] The sliding columns 14 provide a sliding limiting force for the first spring 15 and the second spring 20, and can help the debris filter plate 13 and the dust filter plate 18 to stabilize their positions and avoid tipping over. With the elastic support of the rubber blocks 16, the filtering position can be kept relatively stable, and the overall effect is good.
[0026] In another embodiment, as Figure 3 and Figure 4 shown, the top ends of the four first springs 15 are respectively fixedly installed at the bottom of one end of the angle grinder body 1 and the dust filter plate 18. The first support ring 17 is fixedly installed on the outer side of the sliding column 14. The bottom ends of the four second springs 20 are respectively fixedly installed at the top of one end of the debris filter plate 13 and the dust filter plate 18. The second support ring 19 is fixedly installed on the outer side of the sliding column 14.
[0027] By setting the rubber blocks 16, the first springs 15, and the second springs 20, a stable elastic force and a movable position can be provided for the debris filter plate 13 and the dust filter plate 18. During operation, the vibration generated during operation will be conducted to the debris filter plate 13 and the dust filter plate 18 for vibration, thereby increasing the acting force of oblique diversion, further avoiding blockage, and increasing the efficiency.
[0028] In another embodiment, as Figure 3 and Figure 5 shown, the position of the first contact 23 corresponds to the position of the second contact 24. The switch ends of the indicator lamp 22 are electrically connected to one end of the first contact 23 and the second contact 24 respectively.
[0029] Through the provided limit cone 6, after the dust and debris inside the inclined tube 11 are accumulated to a relatively full level, the accumulation area squeezes the limit cone 6 at this time, causing the limit cone 6 to squeeze the elastic mechanism 21 to move upward, making the first contact 23 and the second contact 24 contact, connecting the switch of the indicator light 22, and turning on the indicator light 22. Therefore, the operator can open the sealing plug 10 to pour out the sundries inside the inclined tube 11, which is convenient for the operation and increases the convenience.
[0030] In another embodiment, as Figure 3 and Figure 4 shown, the inclined tube 11 is inclined, and both the debris filter plate 13 and the dust filter plate 18 are inclined. One end of the debris filter plate 13 and the dust filter plate 18 inclines towards the input end of the inclined tube 11.
[0031] The debris filter plate 13 and the dust filter plate 18 facilitate the diversion to one side after the accumulation and filtration, and can make the overall structure stably divert inside the inclined tube 11, which is convenient for cleaning and collection, and reduces the risk of blockage.
[0032] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An angle grinder with dust removal function, comprising an angle grinder body (1), characterized in that: A power box (9) is arranged at one end of the angle grinder body (1), a protective cover (4) is arranged at one end of the angle grinder body (1), a filter cabin (8) is fixedly installed on the top of the power box (9), a guide pipe (3) is connected to the top of the filter cabin (8), a threaded plate (12) is fixedly installed inside the guide pipe (3), the top of the guide pipe (3) is connected to the annular pipe (2), a sealing door (5) is movably installed on one side of the filter cabin (8), two groups of rubber blocks (16) are fixedly installed inside the filter cabin (8), a debris filter plate (13) is movably installed inside the filter cabin (8), a dust filter plate (18) is movably installed inside the filter cabin (8), and four sliding columns (14) are movably inserted inside the debris filter plate (13) and the dust filter plate (18), and the outer sides of the four sliding columns (14) are sleeved with four first A spring (15), the bottom ends of the four first springs (15) are fixedly mounted with a support ring 1 (17), the outer sides of the four sliding columns (14) are sleeved with four second springs (20), the top ends of the four second springs (20) are fixedly mounted with a support ring 2 (19), the bottom of one side of the filter cabin (8) is connected with an air pump (7), one side of the filter cabin (8) is connected with an inclined tube (11), the outer side of one end of the inclined tube (11) is threadedly connected with a sealing plug (10), the top of the inner cavity of one end of the inclined tube (11) is fixedly mounted with an elastic mechanism (21), the bottom end of the elastic mechanism (21) is fixedly mounted with a limiting cone (6), the top of one end of the limiting cone (6) is fixedly mounted with a second contact (24), the top of the inner cavity of one end of the inclined tube (11) is fixedly mounted with a first contact (23), and the outer side of the inclined tube (11) is provided with an indicator light (22).
2. The angle grinder with dust removal function according to claim 1, characterized in that: Both ends of the annular tube (2) away from the guide tube (3) are connected to the inner sides of the two ends of the protective cover (4), the input end of the air pump (7) is connected to the bottom of the filter cabin (8) through a pipeline, and the air pump (7) is fixedly installed on the outside of the power box (9).
3. The angle grinder with dust removal function according to claim 1, characterized in that: The two groups of rubber blocks (16) are rectangular and obliquely symmetrically evenly distributed inside the filter cabin (8), and the four sliding columns (14) are symmetrically evenly distributed inside the filter cabin (8), and the top ends and bottom ends of the four sliding columns (14) are fixedly mounted on the inner wall of the filter cabin (8).
4. The angle grinder with dust removal function according to claim 1, characterized in that: The top ends of the four first springs (15) are respectively fixedly mounted on the bottom of the angle grinder body (1) and one end of the dust filter plate (18), the support ring 1 (17) is fixedly mounted on the outside of the slide column (14), the bottom ends of the four second springs (20) are respectively fixedly mounted on the top of one end of the debris filter plate (13) and the dust filter plate (18), and the support ring 2 (19) is fixedly mounted on the outside of the slide column (14).
5. The angle grinder with dust removal function according to claim 1, characterized in that: The position of the first contact (23) corresponds to the position of the second contact (24), and the switch end of the indicator light (22) is electrically connected to one end of the first contact (23) and one end of the second contact (24), respectively.
6. The angle grinder with dust removal function according to claim 1, characterized in that: The inclined tube (11) is inclined, the debris filter plate (13) and the dust filter plate (18) are both inclined, and one end of the debris filter plate (13) and the dust filter plate (18) is inclined toward the input end of the inclined tube (11).