Handheld electric grinding machine

Abstract

The utility model discloses a handheld electric grinding machine, and relates to the field of electric grinding machines. The grinding machine comprises the grinding machine body, the rotating groove is formed in the outer surface of the grinding machine body, the stabilizing mechanism is arranged in the rotating groove, vibration generated by a motor is effectively absorbed and slowed down through a damping rotating rod in the stabilizing mechanism by means of the damping characteristic of the damping rotating rod, transmission of vibration to the hand is greatly reduced, and the grinding machine body is more stable. Therefore, hand fatigue and aching pain of workers after long-time work are relieved. Meanwhile, the thumb sleeve is detachably connected with the damping rotating rod through the mounting head and can be adjusted according to the size of a hand, and the holding stability is ensured; and the silica gel layer provides additional holding friction force, so that stable connection between the hand and the grinding machine can be kept even in a wet or greasy environment. By means of the design, operation stability is improved, safety is enhanced, and potential safety hazards caused by hand discomfort or hand slipping are reduced.

Description

Technical Field

[0001] This utility model relates to the field of electric grinding machines, specifically a handheld electric grinding machine. Background Technology

[0002] A handheld electric grinder, also known as a portable grinder or handheld grinder, is a portable electric mechanical tool. Its basic structure includes a motor, grinding wheel, handle, housing, protective cover, power switch, and power cord. The motor provides rotational power to the grinding wheel, typically using a three-phase asynchronous squirrel-cage motor or a single-phase series motor. The grinding wheel, as the working part for cutting or grinding, consists of abrasive, binder, and holes. During operation, grinding is performed through its circumferential surface. Users usually hold the handle and align the grinding wheel with the surface of the material to be processed, utilizing the friction of the grinding wheel to achieve cutting or grinding. Due to the extremely high rotational speed of the grinding wheel, the processing efficiency is significantly improved.

[0003] However, when using current handheld electric grinders, workers need to hold the machine for a long time to perform grinding operations. Because the motor generates a lot of vibration when it runs at high speed, this vibration will be continuously transmitted to the worker's hands. If the working time is long, the worker's hands will feel tired due to the continuous impact of vibration, and may even experience discomfort such as numbness and soreness. In severe cases, the hand may slip out of the hand, which may cause safety hazards. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a handheld electric grinder to solve the technical problem that the vibration of the motor during the use of existing handheld electric grinders causes fatigue, soreness, or even slippage of the worker's hands, which may lead to safety hazards.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a handheld electric grinder, comprising a grinder body, wherein a rotating groove is formed on the outer surface of the grinder body, and a stabilizing mechanism is provided in the rotating groove;

[0006] The stabilizing mechanism includes a damping rotor, the outer surface of which is detachably connected to a thumb sleeve via an mounting head, and the inner side of the thumb sleeve is provided with a silicone layer.

[0007] By adopting the above technical solutions, the grinding wheel can be made more stable when operated by hand, reducing vibration and hand fatigue.

[0008] Furthermore, the overall material of the stabilizing mechanism is stainless steel, and the outer surface material of the thumb sleeve is rubber.

[0009] By adopting the above technical solution, the outer surface of the thumb sleeve is made of rubber, which provides a better grip and anti-slip performance, while the inner silicone layer further increases comfort and reduces hand friction.

[0010] Furthermore, a screw hole is provided on one side of the body, and an expansion mechanism is provided on one side of the screw hole.

[0011] By adopting the above technical solutions, the grinding machine can be easily converted into a desktop fixed operation mode as needed, increasing the applicability and flexibility of the grinding machine.

[0012] Furthermore, the expansion mechanism includes a snap-fit ​​bracket, the inner side of which is provided with a snap-fit ​​groove that snaps into the edge of the outer desktop.

[0013] By adopting the above technical solution, the outer edge of the desktop can be tightly engaged, providing a stable support point for the grinding wheel and making desktop fixing operations more reliable.

[0014] Furthermore, a screw is mounted on the top of the clip bracket via a connecting piece, and the screw is screwed into a screw hole.

[0015] By adopting the above technical solution, a firm connection between the grinding wheel and the extension mechanism is achieved through the connection between the screw and the screw hole, ensuring the stability during desktop fixed operation.

[0016] Furthermore, an adjusting bolt is screwed to the bottom of the clip bracket, and an abutment piece is provided at the top of the adjusting bolt.

[0017] By adopting the above technical solution, the adjusting bolt allows users to adjust the tightness of the clamping bracket according to the thickness of the tabletop, ensuring the stability of the grinding wheel on different tabletops. The abutment plate increases the friction with the bottom of the tabletop, further enhancing stability.

[0018] Furthermore, the abutment piece abuts against the bottom of the table, the abutment piece is made of engineering plastic, and the top of the abutment piece is provided with anti-slip texture.

[0019] By adopting the above technical solution, the contact plate is made of engineering plastic, which has good wear resistance and pressure resistance. The anti-slip texture on the top increases the friction with the bottom of the table, preventing the grinder from slipping during operation.

[0020] Furthermore, an extension handle is provided at the bottom of the body, and a button is provided on one side of the extension handle.

[0021] By adopting the above technical solution, the extended handle provides a better grip point, making handheld operation more comfortable. The button is located on one side of the extended handle for easy user operation and improved work efficiency.

[0022] Furthermore, a machine head is provided on the top of the machine body, and a grinding wheel is provided on one side of the machine head.

[0023] By adopting the above technical solution, the machine head is located at the top of the machine body, and the grinding wheel is set on one side of the machine head. This design makes the center of gravity of the grinding machine more stable, the operation is more stable, and the operation accuracy is improved.

[0024] In summary, the present invention has the following main advantages:

[0025] 1. This utility model incorporates a stabilizing mechanism. The damping rod within this mechanism effectively absorbs and reduces vibrations generated by the motor, significantly minimizing the transmission of vibrations to the hand and thus alleviating hand fatigue and soreness after prolonged work. Simultaneously, the thumb sleeve, detachably connected to the damping rod via an mounting head, can be adjusted to suit different hand sizes, ensuring grip stability. The silicone layer provides additional grip friction, maintaining a secure connection between the hand and the grinding wheel even in humid or oily environments. This series of designs not only improves operational stability but also enhances safety, reducing safety hazards caused by hand discomfort or slippage. This stability is particularly important during fine grinding or cutting operations. In terms of substructure, the damping characteristics of the damping rod provide workers with a smoother operating experience, and its high durability allows it to withstand long-term workloads. The detachable thumb sleeve meets individual needs, improving the applicability and comfort of the grinder, and its rubber material provides a good feel and anti-slip performance. The soft and wear-resistant silicone layer conforms closely to the contours of the hand, providing additional support and cushioning, while also possessing good breathability and sweat absorption, keeping hands dry and comfortable even after prolonged use. In summary, the stabilizing mechanism and its substructures are designed with workers' needs and safety in mind, providing users of handheld electric grinders with a more comfortable, efficient, and safe operating experience.

[0026] 2. This utility model features an extension mechanism that plays a crucial role when the grinder needs to be fixed to a table for extended or precise work. Through the tight engagement of the clip with the edge of the table and the secure screw connection between the screw and the machine body's screw hole, the grinder is firmly fixed on the table, effectively preventing any shaking or movement during operation. This provides a stable support point for the worker, allowing them to operate with both hands and focus more on grinding or cutting. This not only improves work efficiency but also enhances accuracy. There's no need to worry about the grinder shifting due to hand fatigue or instability, enabling faster and more accurate completion of tasks. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0028] Figure 2 This is a rear-view three-dimensional structural diagram of the present invention;

[0029] Figure 3 This utility model Figure 1 Enlarged structural diagram at point A;

[0030] Figure 4 This utility model Figure 2 Enlarged structural diagram at point B.

[0031] In the diagram: 1. Grinding machine; 101. Machine body; 102. Extension handle; 103. Button; 104. Machine head; 105. Grinding wheel; 106. Rotating groove; 107. Screw hole; 2. Stabilizing mechanism; 201. Damping rod; 202. Mounting head; 203. Thumb sleeve; 204. Silicone layer; 3. Expansion mechanism; 301. Snap-fit ​​bracket; 302. Snap-fit ​​groove; 303. Connecting piece; 304. Screw; 305. Adjusting bolt; 306. Abutment piece. Detailed Implementation

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0033] Example 1:

[0034] A handheld electric grinder, such as Figures 1-4 As shown, the present invention includes a grinding machine 1, which includes a machine body 101. A rotating groove 106 is provided on the outer surface of the machine body 101, and a stabilizing mechanism 2 is provided in the rotating groove 106.

[0035] The stabilizing mechanism 2 includes a damping rod 201. The outer surface of the damping rod 201 is detachably connected to a thumb sleeve 203 via a mounting head 202. The inner side of the thumb sleeve 203 is provided with a silicone layer 204. In the design of the grinding machine 1, the stabilizing mechanism 2 is embedded in the rotating groove 106 opened on the outer surface of the machine body 101. This structure enables the grinding machine to effectively absorb and reduce vibrations when operated by hand through the stabilizing mechanism 2, thereby improving the operator's hand stability and comfort and reducing hand fatigue during long-term operation.

[0036] See Figure 1 , Figure 2 , Figure 3 , Figure 4The stabilizing mechanism 2 is made entirely of stainless steel, while the outer surface of the thumb sleeve 203 is made of rubber. The stainless steel construction of the stabilizing mechanism 2 not only enhances its structural strength and durability but also ensures it is not easily deformed or damaged during long-term use. The combination of the rubber outer surface of the thumb sleeve 203 and the inner silicone layer 204 provides excellent grip and anti-slip properties, ensuring a stable grip even with wet or oily hands, thus improving operational safety.

[0037] Example 2:

[0038] See Figure 1 , Figure 2 , Figure 3 , Figure 4 The machine body 101 has a screw hole 107 on one side, and an extension mechanism 3 is provided on one side of the screw hole 107. The screw hole 107 on one side of the machine body 101 provides a convenient installation interface for the extension mechanism 3, allowing the grinding machine to be quickly converted into a desktop fixed operation mode as needed. This design greatly expands the application scenarios of the grinding machine, meets the needs of different working environments, and improves the versatility and flexibility of the equipment.

[0039] See Figure 1 , Figure 2 , Figure 3 , Figure 4 The extension mechanism 3 includes a snap-fit ​​bracket 301, with a snap-fit ​​groove 302 on its inner side. The snap-fit ​​groove 302 engages with the edge of the external desktop. The design of the snap-fit ​​bracket 301 and its inner snap-fit ​​groove 302 in the extension mechanism 3 allows the grinder to be easily snapped onto the edge of the external desktop without the need for additional fixing devices or tools, achieving stable desktop operation. This design simplifies the installation process, improves work efficiency, and also ensures stability during operation.

[0040] See Figure 1 , Figure 2 , Figure 3 , Figure 4 A screw 304 is mounted on the top of the clip bracket 301 via a connecting piece 303. The screw 304 is screwed into a screw hole 107. The screw 304 mounted via the connecting piece 303 is screwed into the screw hole 107 on the machine body 101, thus achieving a firm connection between the expansion mechanism 3 and the grinding wheel 1. This connection method is not only simple and easy to implement, but also ensures the stability and reliability of the connection, and will not loosen or fall off even under long-term or heavy-load operation.

[0041] See Figure 1 , Figure 2 , Figure 3 , Figure 4The bottom of the clamping bracket 301 is screwed with an adjusting bolt 305, and the top of the adjusting bolt 305 is provided with an abutment piece 306. The design of the adjusting bolt 305 screwed at the bottom of the clamping bracket 301 and the abutment piece 306 at the top allows the grinding wheel to achieve a tight fit on tabletops of different thicknesses. By adjusting the tightness of the adjusting bolt 305, the contact force between the abutment piece 306 and the bottom of the tabletop can be easily adjusted, ensuring that the grinding wheel will not shake or slip during operation.

[0042] See Figure 1 , Figure 2 , Figure 3 , Figure 4 The abutment piece 306 abuts against the bottom of the table. The abutment piece 306 is made of engineering plastic, and its top is textured with anti-slip grooves. Made of engineering plastic, the abutment piece 306 has excellent wear resistance and pressure resistance, maintaining its shape and stability even during long-term use. The anti-slip grooves on the top of the abutment piece 306 further increase friction with the bottom of the table, preventing the grinder from moving or slipping during operation due to external forces.

[0043] See Figure 1 , Figure 2 , Figure 3 , Figure 4 The bottom of the machine body 101 is equipped with an extension handle 102, and a button 103 is located on one side of the extension handle 102. The extension handle 102 at the bottom of the machine body 101 provides the operator with a more comfortable grip point, making handheld operation easier and more comfortable. The button 103 on the side of the extension handle 102 is reasonably designed, making it easy for the operator to reach and control with their thumb, improving the convenience and efficiency of operation during the operation.

[0044] See Figure 1 , Figure 2 , Figure 3 , Figure 4 The machine head 104 is mounted on the top of the machine body 101, and a grinding wheel 105 is mounted on one side of the machine head 104. The reasonable layout of the machine head 104 on the top of the machine body 101 and the grinding wheel 105 on one side makes the center of gravity of the grinding machine more stable and the operation more smooth and reliable. This design not only improves the accuracy and efficiency of operation, but also reduces noise and wear caused by vibration or shaking, and extends the service life of the equipment.

[0045] The implementation principle of this embodiment is as follows: First, check whether each component of the handheld electric grinder is intact, including the machine body 101, the stabilizing mechanism 2, the extension mechanism 3, etc. Then, according to the size of your hand, adjust the position of the thumb sleeve 203 on the damping lever 201 through the mounting head 202 to ensure a comfortable grip.

[0046] If handheld operation is required, there is no need to install the extension mechanism 3. Hold the extension handle 102 at the bottom of the machine body 101, ensuring that your fingers can easily reach the button 103. Press the button 103 to start the grinder. The grinding wheel 105 on the machine head 104 will start to rotate. Gently contact the grinding wheel with the object to be ground or cut, and maintain appropriate force and angle for operation. During operation, the damping rod 201 and silicone layer 204 of the stabilizing mechanism 2 will absorb and reduce vibration, reducing hand fatigue.

[0047] If desktop fixing is required, first install the extension mechanism 3, and snap the slot 302 of the snap-fit ​​bracket 301 onto the edge of the outer desktop to ensure a firm connection. Then, install the screw 304 on the top of the snap-fit ​​bracket 301 through the connecting piece 303, and screw the screw into the screw hole 107 of the machine body 101 to achieve a fixed connection between the grinder and the desktop. Adjust the tightness of the snap-fit ​​bracket by adjusting the bolt 305 according to the thickness of the desktop to ensure that the abutment piece 306 is in tight contact with the bottom of the table to increase stability.

[0048] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A hand-held electric grinder, characterized by: Including the grinder (1), the grinder (1) includes the body (101), the outer surface of the body (101) is provided with rotating groove (106), the rotating groove (106) is provided with stabilizing mechanism (2) in; The stabilizing mechanism (2) includes damping rotating rod (201), the outer surface of the damping rotating rod (201) is detachably connected with the thumb sleeve (203) through the mounting head (202), the inner side of the thumb sleeve (203) is provided with silica gel layer (204).

2. The hand-held electric grinder as claimed in claim 1, characterized in that: The overall material of the stabilizing mechanism (2) is stainless steel, and the outer surface of the thumb sleeve (203) is made of rubber.

3. The hand-held electric grinder as claimed in claim 1, characterized in that: The side of the body (101) is provided with screw hole (107), and the side of screw hole (107) is provided with expansion mechanism (3).

4. The hand-held electric grinder as claimed in claim 3, characterized in that: The expansion mechanism (3) includes clamping frame (301), the inner side of the clamping frame (301) is provided with clamping groove (302), and the clamping groove (302) is clamped with the edge of the external desktop.

5. The hand-held electric grinder as claimed in claim 4, characterized in that: The top of the clamping frame (301) is provided with screw rod (304) through connecting sheet (303), and the screw rod (304) is screwed with screw hole (107).

6. The hand-held electric grinder as claimed in claim 4, characterized in that: The bottom of the clamping frame (301) is screwed with adjusting bolt (305), and the top of the adjusting bolt (305) is provided with abutting sheet (306).

7. The hand-held electric grinder as claimed in claim 6, characterized in that: The abutting sheet (306) is abutted with the bottom of the table, the material of the abutting sheet (306) is engineering plastic, and the top of the abutting sheet (306) is provided with anti-skid line.

8. The hand-held electric grinder as defined in claim 1, wherein: The bottom of the body (101) is provided with extension handle (102), and the side of the extension handle (102) is provided with button (103).

9. The hand-held electric grinder as defined in claim 1, wherein: The top of the body (101) is provided with machine head (104), and the side of the machine head (104) is provided with grinding wheel (105).

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