Angle grinder
By using a single lever control and a magnetic adsorption reset mechanism, the problem of accidental activation in traditional angle grinders has been solved, enabling safe and convenient start-up and shutdown operations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YONGKANG RUIGE TOOLS CO LTD
- Filing Date
- 2025-05-31
- Publication Date
- 2026-04-28
AI Technical Summary
Traditional angle grinder switches are prone to accidental activation due to accidental touch or external object pressure, posing a safety hazard, especially when operating in confined spaces. The dual-button design is complex and inconvenient to operate.
It adopts a single lever control component. By rotating the control component, the lever is aligned with the through hole and the start switch is activated. The stop bar and the protrusion work together to ensure that the stop bar automatically disengages from the through hole when the machine is turned off. Combined with magnetic adsorption and spring reset mechanism, it realizes single-action start and automatic reset.
The simplified operation process improves the safety of equipment startup, prevents accidental touches, and ensures that the equipment automatically resets in case of misoperation, thereby enhancing the safety and convenience of operation.
Smart Images

Figure CN224169417U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of angle grinder technology, and in particular to an angle grinder. Background Technology
[0002] Traditional angle grinders typically use a direct-slide switch design, with the switch exposed on the handle surface. This makes them highly susceptible to accidental activation due to accidental contact or pressure from external objects during operation. This is especially problematic in confined spaces, where the operator's hand can easily touch the switch, causing the equipment to suddenly start and potentially leading to an accident. Current technology uses dual-button linkage to reduce the probability of accidental activation, but this design requires pressing two switches simultaneously, which is complex. Utility Model Content
[0003] This utility model addresses the shortcomings of existing technologies by providing an angle grinder.
[0004] To solve the above-mentioned technical problems, the present invention is solved by the following technical solution: An angle grinder includes an angle grinder end, a first switch for starting is provided on the end, the first switch is provided on one side of the bottom plate of the tube body, a rotatable control component is provided in the tube body, and a lever that can be moved on the control component;
[0005] A stop rod is slidably disposed through the control component, and a through hole matching the stop rod is provided on the base plate. Rotating the control component causes the stop rod to rotate into the through hole, and controlling the lever causes the stop rod to trigger the first switch.
[0006] In the above scheme, preferably, the lever is connected to the control component via a rotating shaft.
[0007] In the above scheme, preferably, the control component includes a first surface and a second surface that cooperate with the lever, and both the first surface and the second surface are magnetically attracted and fixed to the nearby lever.
[0008] In the above scheme, preferably, a fixing plate is provided on the abutment, and a spring is provided between the fixing plate and the control component. When the lever is rotated to magnetically attract the second surface, the abutment is pressed towards the first switch to start.
[0009] In the above scheme, preferably, a torsion spring for resetting is provided between the control component and the tube body.
[0010] In the above scheme, preferably, the abutment is provided with a protrusion, and the rotating shaft is provided with a stop bar corresponding to the protrusion. When the rotating shaft rotates to the first surface to close the angle grinder, the stop bar drives the protrusion to move until the abutment disengages from the through hole.
[0011] In the above scheme, preferably, the end is also provided with a symbol, which is located on the outside of the tube body.
[0012] In the above scheme, it is preferable to provide a protective plate for protecting the lever on the end.
[0013] The advantages of this utility model are: the switch can only be triggered by rotating the control component first to align the stop rod with the through hole and then moving the lever, and a single action cannot start the equipment; at the same time, the linkage between the stop bar and the protrusion ensures that the stop rod automatically disengages from the through hole when the machine is turned off, and the initial state can be automatically reset when the equipment is turned off, making the operation simple and the anti-accidental touch effect better. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall design of this utility model.
[0015] Figure 2 This is a side view of the present invention.
[0016] Figure 3 This is a schematic diagram showing the fit between the control component and the tube body of this utility model.
[0017] Figure 4 This is a schematic diagram of the control component and the tube body in a locked state.
[0018] Figure 5 for Figure 4 A sectional view along line AA.
[0019] Figure 6 This is a schematic diagram of the control component and pipe body of this utility model in the unactivated state.
[0020] Figure 7 for Figure 5 BB-direction sectional view.
[0021] Figure 8 This is a schematic diagram of the control component and the tube body of this utility model in the start-up state. Detailed Implementation
[0022] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments: See below Figures 1-8 An angle grinder includes an end portion 1 at its end, on which a first switch 2 for controlling start and stop is provided. Specifically, a tube body 3 is provided outside the first switch 2, that is, the first switch 2 is fixed to one side of the bottom plate 4 of the tube body 3.
[0023] A cylindrical control component 5 is rotatably mounted inside the tube body 3. The control component 5 is rotatably mounted in the tube body 3 via a rotating shaft. A movable lever 7 extends from the outer side of the rotating component, and the start and stop of the angle grinder are adjusted by the position of the lever 7.
[0024] See Figure 5At this time, the angle grinder cannot be turned on. The control component 5 includes a first surface 8 and a second surface 9. At this time, the lever 7 is magnetically attracted to the first surface 8. When it attempts to rotate the lever to engage with the second surface 9, it will be blocked by the abutment 6 on the second surface 9, thus preventing it from being magnetically attracted to the second surface 9.
[0025] Specifically, the control component 5 is fitted with an axially sliding abutment 6, which passes through the second surface 9. Simultaneously, a circular through hole is formed on the base plate 4 corresponding to the end of the abutment 6. (See also...) Figure 7 That is, when the control component 5 is rotated to engage with the through hole, the abutment 6 is aligned with the through hole.
[0026] A fixing plate 11 is provided on the abutment 6. The fixing plate 11 cooperates with the spring 12 in the control component 5. That is, under the action of the spring 12, the abutment 6 enters the through hole and does not trigger the first switch 2. On this basis, the lever 7 is moved to the second surface 9. The lever 7 and the second surface 9 are magnetically attracted. That is, the abutment overcomes the spring 12 and triggers the first switch 2 to start the angle grinder.
[0027] Meanwhile, a torsion spring 13 is provided between the control component 5 and the tube body 3. That is, during the process of rotating the control component 5 to cooperate with the through hole, it is also necessary to overcome the torsion spring 13 to rotate.
[0028] See Figure 8 When the angle grinder is in the started state, rotating the lever 7 towards the first surface 8 causes the guide bar 7 to rotate. Since the surface of the abutment bar 6 has a protrusion 14 and a corresponding stop bar 15 is provided on the rotating shaft 10, the stop bar 15 pushes the protrusion 14, causing the abutment bar 6 to move to the abutment disengagement through hole. Simultaneously, the restoring force of the torsion spring 13 causes the control component 5 to rotate automatically. This prevents accidental activation of the angle grinder.
[0029] The angle grinder on the outside of the tube body 3 is printed with switch status symbols 16, including start / stop indicators represented by "0" and "1", and a rotating arrow indicator. Furthermore, an extension plate at the end of the end 1 forms a protective plate 17 to safeguard the lever 7.
[0030] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. An angle grinder, characterized in that: Includes an angle grinder end (1), on which a first switch (2) for starting is provided, the first switch (2) is provided on one side of the bottom plate (4) of the tube body (3), and a rotatable control component (5) is provided in the tube body (3), and a lever (7) that can be moved on the control component (5); A stop rod (6) is slidably disposed through the control member (5). A through hole matching the stop rod (6) is provided on the base plate (4). Rotating the control member (5) causes the stop rod (6) to rotate into the through hole. Controlling the lever (7) causes the stop rod (6) to trigger the first switch (2).
2. The angle grinder according to claim 1, characterized in that: The lever (7) is connected to the control component (5) via a rotating shaft (10).
3. An angle grinder according to claim 2, characterized in that: The control component (5) includes a first surface (8) and a second surface (9) that cooperate with the lever (7), and both the first surface (8) and the second surface (9) are magnetically attracted and fixed to the nearby lever (7).
4. An angle grinder according to claim 3, characterized in that: A fixing plate (11) is provided on the abutment (6), and a spring (12) is provided between the fixing plate (11) and the control component (5). When the lever (7) rotates to magnetically attract the second surface (9), the abutment (6) is pressed towards the first switch (2) to move to start.
5. An angle grinder according to claim 4, characterized in that: A torsion spring (13) for resetting is provided between the control element (5) and the tube body (3).
6. An angle grinder according to claim 2 or 5, characterized in that: The abutment (6) is provided with a protrusion (14), and the rotating shaft (10) is provided with a stop bar (15) corresponding to the protrusion (14). When the rotating shaft (10) rotates toward the first face (8) to close the angle grinder, the stop bar (15) drives the protrusion (14) to move until the abutment (6) disengages from the through hole.
7. An angle grinder according to claim 1, characterized in that: The end (1) is also provided with a symbol (16), which is located on the outside of the tube body (3).
8. An angle grinder according to claim 1, characterized in that: A protective plate (17) for protecting the lever (7) is provided on the end (1).