Flexible cutting brushless lithium battery angle grinder

Abstract

This utility model relates to the field of angle grinder technology, and more particularly to a flexible, brushless lithium-ion battery-powered angle grinder, comprising an angle grinder base body; an angle grinder body and an angle grinder head body; a lithium battery body is mounted on the outer side of the angle grinder base body; an air inlet for cooling is provided on the angle grinder base body; the angle grinder body is mounted on one side of the angle grinder base body; an angle grinder head body for grinding and cutting is mounted on one side of the angle grinder body; a spindle lock switch is mounted on the upper end of the angle grinder head body; and a grinding disc is mounted on the lower end of the angle grinder head body. This utility model uses the lithium battery body to power the angle grinder base body, angle grinder body, and angle grinder head body, reducing reliance on fixed wiring, adapting to various environments, and utilizing an air duct between the air inlet and the cooling vent to connect the angle grinder base body, angle grinder body, and angle grinder head body, providing fresh air to prevent heat buildup that could cause the angle grinder to overheat and stop.

Description

Technical Field

[0001] This utility model relates to the field of angle grinder technology, and in particular to a flexible, brushless lithium-ion angle grinder. Background Technology

[0002] An angle grinder, also known as a polishing machine or disc grinder, is a handheld power tool that uses fiberglass for cutting and grinding. It is widely used in many industries. The brushless motor is the core component of a brushless lithium-ion angle grinder. The rotor is pressed with high-strength silicon steel sheets to improve the efficiency and reliability of the motor and reduce iron and copper losses. A suitable lithium battery chemistry system can meet the requirements of angle grinders for high energy density, high discharge rate and long cycle life.

[0003] Most existing brushless lithium-ion angle grinders are integrated units. During use, they are powered by an external circuit and driven by a motor to grind the grinding discs. However, the integrated design of these angle grinders results in a strong overall seal, which can lead to heat buildup and overheating shutdowns. This also limits the range of motion of the grinder and reduces its ease of use.

[0004] Therefore, in response to the problems mentioned above regarding the existing brushless lithium-ion battery angle grinders, such as the strong overall sealing of the integrated angle grinder leading to heat accumulation and high-temperature shutdown, which restricts the range of angle grinder positions and reduces the ease of use of brushless lithium-ion battery angle grinders, a flexible cutting brushless lithium-ion battery angle grinder can be designed. Utility Model Content

[0005] To overcome the problem that existing brushless lithium-ion battery angle grinders have strong overall sealing, which makes them prone to heat accumulation and high-temperature shutdown, thus limiting the range of angle grinder positions and reducing the convenience of use.

[0006] The technical solution of this utility model is as follows: a flexible brushless lithium-ion angle grinder, including an angle grinder base body; it also includes an angle grinder body and an angle grinder head body. A lithium battery body is installed on the outside of the angle grinder base body. An air inlet for cooling is provided on the angle grinder base body. An angle grinder body is installed on one side of the angle grinder base body. An angle grinder head body for grinding and cutting is installed on one side of the angle grinder body. A spindle lock switch is installed on the upper end of the angle grinder head body. An angle grinding disc is installed on the lower end of the angle grinder head body. A heat dissipation vent is provided on the outside of the angle grinder head body.

[0007] Preferably, the angle grinder base body, angle grinder body, and angle grinder head body are powered by a lithium battery, reducing reliance on fixed wiring. The air duct between the air inlet and the heat dissipation vent connects the angle grinder base body, angle grinder body, and angle grinder head body to provide fresh air, prevent heat buildup and shutdown, and lock and release the grinding disc via a spindle lock switch, facilitating cutting and grinding through the angle grinder head body and grinding disc.

[0008] Preferably, a first mounting tube is fixed to the outer side of the angle grinder head body, a first handle is threaded to the outer side of the first mounting tube, and a protective cover is provided on the outer side of the angle grinder disc.

[0009] Preferably, a limiting ring is fixed to the upper end of the protective cover, a mating plate is fixed to the inner side of the limiting ring, and a fixing ring is provided between the limiting ring and the mating plate.

[0010] Preferably, a rotating seat is fixedly connected to the outer side of the angle grinder body, a positioning platform is fixedly connected to the inner side of the rotating seat, a rotating ring is rotatably connected to the outer side of the rotating seat, and a second mounting tube is fixedly connected to the outer side of the rotating ring.

[0011] Preferably, a second handle is provided on the outer side of the second mounting tube, a positioning block is slidably connected to the outer side of the second handle, a limit plate is fixedly connected to the outer side of the positioning block, a first threaded rod is fixedly connected to the outer side of the limit plate, the limit plate and the first threaded rod are slidably connected to the second handle, and the first threaded rod is threadedly connected to the second mounting tube.

[0012] Preferably, a rubber sleeve body is provided on the outer side of the angle grinder body, a rotating plate is rotatably connected to the outer side of the rubber sleeve body, and a second threaded rod is rotatably connected to the inner side of the rotating plate.

[0013] Preferably, the outer side of the second threaded rod is threadedly connected to a movable frame, the movable frame is slidably connected to the rotating plate, and the outer side of the movable frame is fixedly connected to a third mounting tube.

[0014] The beneficial effects of this utility model are:

[0015] This flexible brushless lithium-ion angle grinder uses a lithium battery to power the grinder base, body, and head, reducing reliance on fixed wiring and increasing flexibility for use in various environments. Furthermore, an air duct between the air inlet and outlet connects the grinder base, body, and head, providing fresh air to prevent heat buildup and overheating. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of the present invention.

[0017] Figure 2The diagram shown is a three-dimensional structural schematic of the angle grinder base body of this utility model;

[0018] Figure 3 The diagram shown is a three-dimensional structural schematic of the protective cover of this utility model;

[0019] Figure 4 The diagram shown is a three-dimensional structural schematic of the rotating ring of this utility model;

[0020] Figure 5 The diagram shown is a three-dimensional structural schematic of the main body of the rubber sleeve of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Angle grinder base body; 2. Lithium battery body; 3. Air inlet; 4. Angle grinder body; 5. Angle grinder head body; 6. Spindle lock switch; 7. Grinding disc; 8. Heat dissipation vent; 9. First mounting tube; 10. First grip; 11. Protective cover; 12. Limiting ring; 13. Connecting plate; 14. Fixing ring; 15. Rotating seat; 16. Positioning platform; 17. Rotating ring; 18. Second mounting tube; 19. Second grip; 20. Positioning block; 21. Limiting plate; 22. First threaded rod; 23. Rubber sleeve body; 24. Rotating plate; 25. Second threaded rod; 26. Moving frame; 27. Third mounting tube. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figures 1-5 This utility model provides an embodiment of a flexible, brushless lithium-ion angle grinder, including a grinder base body 1; it also includes a grinder body 4 and a grinder head body 5. A lithium-ion battery body 2 is mounted on the outer side of the grinder base body 1. An air inlet 3 for cooling is provided on the grinder base body 1. The grinder body 4 is mounted on one side of the grinder base body 1, and the grinder head body 5 for grinding and cutting is mounted on one side of the grinder body 4. A spindle lock switch 6 is mounted on the upper end of the grinder head body 5. An angle grinding disc 7 is installed at the lower end, and a heat dissipation vent 8 is provided on the outer side of the angle grinder head body 5. The angle grinder base body 1, angle grinder body 4 and angle grinder head body 5 are powered by the lithium battery body 2, reducing the dependence on fixed wiring. The air duct between the air inlet 3 and the heat dissipation vent 8 runs through the angle grinder base body 1, angle grinder body 4 and angle grinder head body 5, thereby providing fresh air and preventing heat buildup that could cause the machine to stop. The angle grinding disc 7 is locked and released by the spindle lock switch 6, which facilitates cutting and grinding through the angle grinder head body 5 and the angle grinding disc 7.

[0024] Please see Figures 1-3In this embodiment, a first mounting tube 9 is fixedly connected to the outer side of the angle grinder head body 5, and a first handle 10 is threadedly connected to the outer side of the first mounting tube 9. A protective cover 11 is provided on the outer side of the angle grinder disc 7. The first handle 10 is installed and removed through the first mounting tube 9, thereby facilitating user grip and fixation through the first mounting tube 9 and the first handle 10 at different positions. A limiting ring 12 is fixedly connected to the upper end of the protective cover 11, and a mating plate 13 is fixedly connected to the inner side of the limiting ring 12. A fixing device is provided between the limiting ring 12 and the mating plate 13. The fixed ring 14 is connected between the angle grinder head body 5 and the angle grinder disc 7 via the mating plate 13. The fixed ring 14 is used to tighten or loosen the mating plate 13, thereby freely changing the installation angle of the protective cover 11. A rotating seat 15 is fixedly connected to the outer side of the angle grinder body 4. A positioning platform 16 is fixedly connected to the inner side of the rotating seat 15. A rotating ring 17 is rotatably connected to the outer side of the rotating seat 15. A second mounting tube 18 is fixedly connected to the outer side of the rotating ring 17. The tilt angle of the second mounting tube 18 can be adjusted by rotating the rotating ring 17 via the rotating seat 15.

[0025] Please see Figures 3-5 In this embodiment, a second handle 19 is provided on the outer side of the second mounting tube 18. A positioning block 20 is slidably connected to the outer side of the second handle 19. A limiting plate 21 is fixedly connected to the outer side of the positioning block 20. A first threaded rod 22 is fixedly connected to the outer side of the limiting plate 21. The limiting plate 21 and the first threaded rod 22 are slidably connected to the second handle 19. The first threaded rod 22 is threadedly connected to the second mounting tube 18. By rotating the positioning block 20, the first threaded rod 22 is driven to rotate, thereby connecting to the second mounting tube 18 and driving the limiting plate 21 to fix the second handle 19. At the same time, the first threaded rod 22 is connected to the positioning table 16, thereby fixing the rotating ring 17 and the second... At the position of the handle 19, a rubber sleeve body 23 is provided on the outer side of the angle grinder body 4. A rotating plate 24 is rotatably connected to the outer side of the rubber sleeve body 23. A second threaded rod 25 is rotatably connected to the inner side of the rotating plate 24. The rubber sleeve body 23 facilitates the user's grip on the device and rotation of the rotating plate 24. A movable frame 26 is threadedly connected to the outer side of the second threaded rod 25. The movable frame 26 is slidably connected to the rotating plate 24. A third mounting tube 27 is fixedly connected to the outer side of the movable frame 26. The second threaded rod 25 drives the movable frame 26 to move, and the first handle 10 is installed through the third mounting tube 27, thereby facilitating the user to change the grip and angle of the device.

[0026] In use, firstly, the rubber sleeve body 23 facilitates the user's grip on the device, and the lithium battery body 2 is placed through the movable frame 26. Then, the rotating plate 24 is rotated. Next, the movable frame 26 and the lithium battery body 2 are moved by the second threaded rod 25, thereby installing the lithium battery body 2 on the angle grinder base body 1. Then, the docking plate 13 is connected between the angle grinder head body 5 and the angle grinder blade 7, and the docking plate 13 is fixed by the fixing ring 14. Finally, the angle grinder base body 1, the angle grinder body 4, and the angle grinder head body 5 drive the angle grinder blade 7 to perform grinding.

[0027] During polishing, firstly, the fixing ring 14 is used to loosen or tighten the docking plate 13, thereby freely changing the installation angle of the protective cover 11 and thus changing the protection angle. Next, the first threaded rod 22 is rotated by rotating the positioning block 20, thereby connecting to the second mounting tube 18 and driving the limiting plate 21 to fix the second grip 19. Then, the rotating ring 17 and the second grip 19 are rotated, and the first threaded rod 22 is used to dock with the positioning table 16, thereby fixing the position of the rotating ring 17 and the second grip 19. Finally, the first grip 10 is installed through the first mounting tube 9 and the third mounting tube 27, thereby facilitating the user to change the grip method and angle of the device.

[0028] Through the above steps, the lithium battery body 2 supplies power to the angle grinder base body 1, angle grinder body 4, and angle grinder head body 5, reducing the dependence on fixed wiring and thus improving the flexibility of use. This makes it convenient to use in various environments. Furthermore, the air duct between the air inlet 3 and the heat dissipation vent 8 connects the angle grinder base body 1, angle grinder body 4, and angle grinder head body 5, thereby providing fresh air and preventing heat buildup that could cause shutdown. This addresses the problem that existing brushless lithium battery angle grinders, due to their strong overall sealing, are prone to heat buildup, leading to high-temperature shutdowns and limiting the range of angle grinder placement, thus reducing the ease of use of brushless lithium battery angle grinders.

Claims

1. A flexible, brushless lithium-ion angle grinder, comprising a grinder base body (1); characterized in that: It also includes an angle grinder body (4) and an angle grinder head body (5). A lithium battery body (2) is installed on the outside of the angle grinder body (1). An air inlet (3) for cooling is opened on the angle grinder body (1). An angle grinder body (4) is installed on one side of the angle grinder body (1). An angle grinder head body (5) for grinding and cutting is installed on one side of the angle grinder body (4). A spindle lock switch (6) is installed on the upper end of the angle grinder head body (5). An angle grinding disc (7) is installed on the lower end of the angle grinder head body (5). A heat dissipation vent (8) is opened on the outside of the angle grinder head body (5).

2. The flexible brushless lithium-ion angle grinder according to claim 1, characterized in that: A first mounting tube (9) is fixed to the outside of the angle grinder head body (5), and a first handle (10) is threaded to the outside of the first mounting tube (9). A protective cover (11) is provided on the outside of the angle grinder disc (7).

3. The flexible brushless lithium-ion angle grinder according to claim 2, characterized in that: A limiting ring (12) is fixedly connected to the upper end of the protective cover (11), and a docking plate (13) is fixedly connected to the inner side of the limiting ring (12). A fixing ring (14) is provided between the limiting ring (12) and the docking plate (13).

4. The flexible brushless lithium-ion angle grinder according to claim 3, characterized in that: A rotating seat (15) is fixed to the outside of the main body (4) of the angle grinder. A positioning table (16) is fixed to the inside of the rotating seat (15). A rotating ring (17) is rotatably connected to the outside of the rotating seat (15). A second mounting tube (18) is fixed to the outside of the rotating ring (17).

5. The flexible brushless lithium-ion angle grinder according to claim 4, characterized in that: A second handle (19) is provided on the outside of the second mounting tube (18). A positioning block (20) is slidably connected to the outside of the second handle (19). A limiting plate (21) is fixedly connected to the outside of the positioning block (20). A first threaded rod (22) is fixedly connected to the outside of the limiting plate (21). The limiting plate (21) and the first threaded rod (22) are slidably connected to the second handle (19). The first threaded rod (22) is threadedly connected to the second mounting tube (18).

6. The flexible brushless lithium-ion angle grinder according to claim 1, characterized in that: A rubber sleeve body (23) is provided on the outside of the angle grinder body (4). A rotating plate (24) is rotatably connected to the outside of the rubber sleeve body (23). A second threaded rod (25) is rotatably connected to the inside of the rotating plate (24).

7. The flexible brushless lithium-ion angle grinder according to claim 6, characterized in that: The outer side of the second threaded rod (25) is threaded with a movable frame (26), which is slidably connected to the rotating plate (24). The outer side of the movable frame (26) is fixed with a third mounting tube (27).

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