Angle grinder with handle damping function

Abstract

The utility model discloses an angle grinder with a handle damping function, which is characterized by comprising a mounting box fixedly connected to a handle; the upper side and the lower side of the mounting box are slidably connected with the damping plates; the interiors of the upper side and the lower side of the mounting box are slidably connected with the adjusting plates; the first reset spring is fixedly connected between the adjusting plate and the damping plate; the extrusion block is slidably connected in the mounting box, the extrusion block is provided with an inclined surface, and the adjusting plate is in contact with the inclined surface; the lead screw is rotationally connected into the mounting box, and the lead screw is in threaded connection with the extrusion block; the rotating disc is fixedly connected to the screw rod; the damping device has the advantages that the adjusting plate is adjusted to move, the pre-compression amount of the first reset spring is controlled and changed, the first reset spring is changed to work in different intervals of a characteristic curve, the differentiated damping effect is achieved, and the damping device can meet diversified operation requirements.

Description

An angle grinder with handle shock absorption function Technical Field

[0001] This utility model relates to an angle grinder, and more particularly to an angle grinder with a handle shock absorption function. Background Technology

[0002] Angle grinders, as a common handheld power tool, are widely used in metal processing, wood cutting, stone polishing, and other fields. They use high-speed rotating grinding wheels or discs to cut, grind, and polish workpieces, offering advantages such as flexible operation, high efficiency, and wide applicability, making them important in both industrial production and home DIY. However, because the motor of an angle grinder operates at high speed and is accompanied by strong vibrations, prolonged use can cause numbness, soreness, and even redness and swelling in the user's hands, severely impacting operational comfort and work efficiency.

[0003] To address the aforementioned issues, existing technologies typically employ shock-absorbing structures at the handle to mitigate vibration transmission, such as using springs or wrapping the handle with elastic materials. However, these shock-absorbing methods offer limited effectiveness and cannot be customized to suit different users' grip habits, hand stress characteristics, or working environments. For instance, some users may require stronger shock absorption to reduce high-frequency vibrations, while others may prioritize operational stability. In other words, existing shock-absorbing structures struggle to meet diverse user needs. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide an angle grinder with adjustable shock absorption effect and handle shock absorption function.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: It includes: a machine body, which is composed of a motor and a grinding wheel; a handle, with a double handle fixedly connected to the machine body; the angle grinder further includes: a mounting box, with the mounting box fixedly connected to the handle; a shock-absorbing plate, with shock-absorbing plates slidably connected to both the upper and lower sides of the mounting box, the mounting box limiting the movement range of the shock-absorbing plate; an adjusting plate, with adjusting plates slidably connected to both the upper and lower sides of the mounting box; a first return spring, with a first return spring fixedly connected between the adjusting plate and the shock-absorbing plate; an extrusion block, with an extrusion block slidably connected inside the mounting box, the extrusion block having an inclined surface, and the adjusting plate contacting the inclined surface; a lead screw, with a lead screw rotatably connected inside the mounting box, the lead screw being threadedly connected to the extrusion block; and a turntable, with a turntable fixedly connected to the lead screw.

[0006] A further preferred embodiment of this utility model is: the upper and lower sides of the extrusion block are symmetrically provided with inclined surfaces, and the two side adjustment plates will undergo vertical displacements of equal size and opposite directions.

[0007] A further preferred embodiment of this utility model is as follows: the angle grinder further includes: a bayonet provided on the rear side of the mounting box, the bayonet being provided with a ring at equal intervals along the outside of the turntable; a pin, the pin being slidably connected to the turntable, the pin being inserted into the bayonet; and a second return spring, the second return spring being fixedly connected between the pin and the turntable.

[0008] A further preferred embodiment of this utility model is as follows: the angle grinder further includes: rollers, and rollers are rotatably connected to the adjustment plate, and the adjustment plate makes rolling contact with the extrusion block through the rollers.

[0009] A further preferred embodiment of this utility model is: the angular polishing machine further includes: markings, each bayonet is fixedly connected with a marking, the markings quantify the rotation angle of the lead screw into a vibration reduction effect level.

[0010] A further preferred embodiment of this utility model is as follows: the angle grinder further includes a guide ring, which is fixedly connected to the bayonet, and the guide ring has a chamfered guide surface on the edge of the bayonet.

[0011] A further preferred embodiment of this utility model is: the angle grinder further includes: a telescopic pad, and the shock-absorbing plate and the mounting box are fixedly connected with the telescopic pad.

[0012] A further preferred embodiment of this utility model is: the angular polishing machine further includes: a shock-absorbing pad, and the shock-absorbing pad is fixedly connected to the shock-absorbing plate.

[0013] Compared with the prior art, the advantages of this utility model are: This utility model adjusts the displacement of the adjusting plate to control and change the pre-compression of the first return spring, thus changing the first return spring to work in different ranges of its characteristic curve, thereby obtaining differentiated damping effects and enabling this utility model to meet diverse operational needs; this utility model improves the convenience and stability of adjustment by setting the adjusting plates on both sides to be uniformly controlled by the extrusion block with bidirectional inclined surfaces; and the damping effect adjustment is locked through the cooperation of the insertion rod and the bayonet, ensuring the stability of the damping effect adjustment of this utility model. Attached Figure Description

[0014] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present invention. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0015] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 is a cross-sectional view of the connection structure at the handle of this utility model;

[0017] Figure 3 is a cross-sectional view of the connection structure between the extrusion block and the turntable of this utility model;

[0018] Figure 4 is a separate view of the connection structure of the second reset spring and the pin of this utility model.

[0019] In the diagram: 1. Body; 2. Handle; 3. Mounting box; 4. Shock absorber; 5. Adjustment plate; 6. First return spring; 7. Lead screw; 8. Pressing block; 9. Turntable; 10. Bayonet; 11. Pin; 12. Second return spring; 13. Roller; 14. Label; 15. Guide ring; 16. Telescopic pad; 17. Shock absorber. Detailed Implementation

[0020] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0021] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

[0022] This embodiment mainly describes the structure of the angle grinder, as follows:

[0023] An angle grinder with handle shock absorption function, as shown in Figures 1-3, includes: a machine body 1, mainly composed of an electric motor and a grinding wheel; the electric motor drives the grinding wheel to rotate at high speed for cutting, grinding, and polishing operations; a handle 2, with handles 2 fixedly installed on both the left and rear sides of the machine body 1, the dual handles 2 being designed to increase the stability and safety of the machine body 1 during operation; a mounting box 3, with a mounting box 3 fixedly installed on the handle 2; shock-absorbing plates 4, with shock-absorbing plates 4 slidably installed on both the upper and lower sides of the mounting box 3, the connection between the shock-absorbing plates 4 and the mounting box 3 being T-shaped to limit the range of movement of the shock-absorbing plates 4; and an adjusting plate 5, with adjusting plates 5 slidably installed inside both the upper and lower sides of the mounting box 3. The first return spring 6 is fixedly installed between the adjusting plate 5 and the damping plate 4, and the first return spring 6 makes the damping plate 4 contact the limiting surface of the mounting box 3; the extrusion block 8 is slidably installed in the mounting box 3, and the upper and lower sides of the extrusion block 8 are symmetrically arranged with inclined surfaces. The adjusting plates 5 on both sides are in contact with the upper and lower inclined surfaces respectively, so that the adjusting plates 5 on both sides are uniformly controlled by the extrusion block 8. Through the inclined surface, the horizontal displacement of the extrusion block 8 will be synchronously converted into vertical displacements of equal size and opposite direction of the adjusting plates 5 on both sides; the lead screw 7 is rotatably installed in the mounting box 3, and the lead screw 7 is threadedly installed with the extrusion block 8. The rotation of the lead screw 7 drives the horizontal displacement of the extrusion block 8; the turntable 9 is fixedly installed on the lead screw 7.

[0024] When adjusting the vibration damping effect of the angle grinder, the turntable 9 is used to rotate the lead screw 7, which controls the horizontal displacement of the extrusion block 8 and drives the adjusting plate 5 to move vertically, thereby adjusting the distance between the adjusting plate 5 and the damping plate 4 and controlling the deformation of the first return spring 6. When the turntable 9 is rotated clockwise, the distance between the adjusting plate 5 and the damping plate 4 is reduced, and the pre-compression of the first return spring 6 is increased, so that the first return spring 6 works in the high stiffness region. In this state, the stiffness at the handle 2 increases, and a greater force is required to produce the same amount of deformation, thereby weakening the vibration damping effect. This is suitable for high-precision grinding operations. Conversely, when the turntable 9 is rotated counterclockwise, the distance between the adjusting plate 5 and the damping plate 4 is increased, and the pre-compression of the first return spring 6 is reduced, so that the first return spring 6 works in the low stiffness region of the characteristic curve, reducing the stiffness at the handle 2 and absorbing vibrations with higher amplitude, which is suitable for heavy-duty cutting operations.

[0025] As shown in Figures 3 and 4, the device also includes: a bayonet 10 on the rear side of the mounting box 3, with a ring of bayonet 10 evenly spaced around the outside of the turntable 9; a pin 11, which is slidably mounted on the turntable 9 and engages with the bayonet 10 to achieve axial positioning of the turntable 9; and a second return spring 12, which is fixedly mounted between the pin 11 and the turntable 9.

[0026] Pulling out the pin 11 will release the lock on the turntable 9. At this time, the screw 7 can be rotated freely to adjust the damping effect at the handle 2. After the adjustment is completed, push the pin 11 into the corresponding slot 10 to relock the position of the turntable 9. The second return spring 12 ensures that the pin 11 and the slot 10 are tightly engaged, thereby maintaining the adjusted damping effect.

[0027] As shown in Figures 1 and 2, the system also includes: a roller 13, which is rotatably mounted on the adjusting plate 5. The adjusting plate 5 rolls into contact with the extrusion block 8 through the roller 13, improving the smoothness of the fit between the adjusting plate 5 and the extrusion block 8 and reducing wear; a label 14, which is fixedly installed on the outside of each bayonet 10. The label 14 quantifies the rotation angle of the lead screw 7 into a vibration damping effect level, enabling quick and intuitive adjustment; and a guide ring 15, which is fixedly installed at each bayonet 10. The edge of 10 is provided with a chamfered guide surface to enable blind insertion of the pin 11 and improve the ease of operation; the telescopic pad 16 is fixedly installed between the shock-absorbing plate 4 and the mounting box 3. The telescopic pad 16 is used to dynamically seal the connection between the two to prevent the intrusion of abrasive debris and avoid affecting the smoothness of the displacement of the shock-absorbing plate 4; the shock-absorbing pad 17 is fixedly installed on the shock-absorbing plate 4. The shock-absorbing pad 17 provides double shock absorption, further improving the shock absorption effect and improving the grip comfort at the handle 2.

[0028] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] The above provides a detailed description of an angle grinder with handle shock absorption function provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand this utility model and its core ideas. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from its principle, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. An angle grinder having a handle damping function, characterized by: include: The machine body (1) is composed of an electric motor and a grinding wheel; the handle (2) is fixedly connected to the machine body (1); the angle grinder is characterized by further comprising: a mounting box (3) fixedly connected to the handle (2); a shock absorber (4) slidably connected to the upper and lower sides of the mounting box (3), the mounting box (3) restricting the movement range of the shock absorber (4); an adjusting plate (5) slidably connected to the interior of the upper and lower sides of the mounting box (3); and a first return spring (6) fixedly connected between the adjusting plate (5) and the shock absorber (4). The first return spring (6) makes the damping plate (4) contact the limiting surface of the mounting box (3); the extrusion block (8) is slidably connected in the mounting box (3), the extrusion block (8) is provided with an inclined surface, the adjusting plate (5) contacts the inclined surface, and through the inclined surface, the horizontal displacement of the extrusion block (8) will be converted into the vertical displacement of the adjusting plate (5); the lead screw (7) is rotatably connected in the mounting box (3), the lead screw (7) is threadedly connected to the extrusion block (8), and the rotation of the lead screw (7) drives the horizontal displacement of the extrusion block (8); the turntable (9) is fixedly connected to the lead screw (7).

2. The angle grinder with handle shock-absorbing function according to claim 1, characterized in that: The upper and lower sides of the extrusion block (8) are symmetrically provided with inclined surfaces so that the adjustment plates (5) on both sides are uniformly controlled by the extrusion block (8), and the adjustment plates (5) on both sides will make vertical displacements of equal size and opposite direction.

3. The angle grinder with handle shock-absorbing function according to claim 2, characterized in that: The angle grinder further includes: a bayonet (10) provided on the rear side of the mounting box (3), the bayonet (10) being provided with a ring at equal intervals around the turntable (9); a pin (11), the pin (11) being slidably connected on the turntable (9), the pin (11) being inserted into the bayonet (10) to achieve axial positioning of the turntable (9); and a second return spring (12), the second return spring (12) being fixedly connected between the pin (11) and the turntable (9).

4. The angle grinder with handle damping function according to claim 3, characterized in that: The angle grinder also includes: a roller (13), and the roller (13) is rotatably connected to the adjusting plate (5). The adjusting plate (5) makes rolling contact with the extrusion block (8) through the roller (13).

5. The corner sander with handle shock absorption function according to claim 4, characterized in that: The angle grinder also includes: a label (14), and each bayonet (10) is fixedly connected with a label (14), which quantifies the rotation angle of the lead screw (7) into a vibration reduction effect level.

6. The angle grinder with handle shock-absorbing function according to claim 5, characterized in that: The angle grinder further includes: a guide ring (15), a guide ring (15) is fixedly connected at the bayonet (10), and the guide ring (15) has a chamfered guide surface at the edge of the bayonet (10).

7. The angle grinder with handle shock absorption function according to claim 6, characterized in that: The angle grinder also includes: a telescopic pad (16), and a telescopic pad (16) is fixedly connected between the shock-absorbing plate (4) and the mounting box (3). The telescopic pad (16) is used to dynamically seal the connection between the two.

8. The angle grinder with handle shock absorption function according to claim 7, characterized in that: The angle grinder also includes: a shock-absorbing pad (17), and the shock-absorbing plate (4) is fixedly connected to the shock-absorbing pad (17).

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