Angle grinder with high safety

Abstract

The utility model discloses a high-safety angle grinder which comprises an angle grinder body, a transmission main shaft is fixedly installed at the bottom of the angle grinder body, a cutting blade is fixedly installed at the tail end of the transmission main shaft, an installation groove is formed in one side of the surface of the angle grinder body, and a transparent observation cover is fixedly installed in the installation groove. A supporting ring is fixedly connected to the bottom surface of the transparent observation cover, sliding grooves are formed in the two sides of the surface of the supporting ring, a cutting protection cover is slidably installed in the sliding grooves, a limiting ring is fixedly connected to the top of the cutting protection cover, and a telescopic spring is fixedly connected to the bottom face of the limiting ring. Compared with the prior art, the angle grinder has the advantages that through the cutting protective cover installed on the supporting ring in a sliding mode, when the angle grinder cuts an object, the cutting protective cover capable of sliding and stretching out and drawing back wraps the outer side of the cutting blade all the time, sparks generated by cutting are effectively prevented from splashing out, the cutting blade can be blocked and protected when the cutting blade is accidentally broken, and the cutting efficiency is improved. And the use safety of the angle grinder is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of angle grinders, and more specifically, to an angle grinder with high safety. Background Art

[0002] In the fields of modern industrial production and metal processing, as a common electric tool, angle grinders are widely used in operations such as cutting, grinding, and polishing of metal materials. Although traditional angle grinders have played an important role in improving work efficiency, their safety performance has always been a key concern in the industry. The existing designs of angle grinders often focus on enhancing power and work efficiency, but the safety protection measures for operators are relatively insufficient, resulting in certain safety hazards during use.

[0003] Firstly, when an angle grinder cuts or grinds metal materials at high speed, a large amount of high-temperature sparks will be generated. These sparks can not only burn the operator, but also ignite surrounding flammable substances, causing a fire hazard. Secondly, when the cutting disc of an angle grinder is under high-intensity operation or encounters hard foreign objects, the cutting disc bears huge stress and is prone to breakage or even fly out at high speed, posing a serious threat to the operator and surrounding personnel. Although the cutting disc materials and installation methods of angle grinders on the current market have been improved to some extent, there is still a lack of an effective protection mechanism to prevent the safety hazards caused by the sudden breakage of the cutting disc when the angle grinder cuts materials. No effective solutions have been proposed for the problems in the related technologies. Therefore, it is necessary to propose an angle grinder with high safety to solve the problems mentioned above. Summary of the Utility Model

[0004] In view of the problems in the related technologies, the present utility model proposes an angle grinder with high safety to overcome the above-mentioned technical problems existing in the related prior arts.

[0005] For this purpose, the specific technical solution adopted by the present utility model is as follows:

[0006] An angle grinder with high safety, comprising an angle grinder body. A transmission main shaft is fixedly installed at the bottom of the angle grinder body, and a cutting disc is fixedly installed at the end of the transmission main shaft. An installation groove is formed on one side of the surface of the angle grinder body, and a transparent observation cover is fixedly installed inside the installation groove. A support ring is fixedly connected to the bottom surface of the transparent observation cover. Sliding grooves are formed on both sides of the surface of the support ring, and a cutting protection cover is slidably installed inside the sliding grooves. A limiting ring is fixedly connected to the top of the cutting protection cover, and a telescopic spring is fixedly connected to the bottom surface of the limiting ring. The end of the telescopic spring is fixedly connected to the surface of the support ring.

[0007] Furthermore, in order to realize the grinding and polishing functions of the angle grinder, telescopic rods are slidably installed on both sides of the surface of the angle grinder body. Two positioning holes are opened on the surface of the cutting protective cover, and the positioning holes are matched with the telescopic rods. A protective cover is rotatably installed on one side of the surface of the transmission main shaft, and one side of the surface of the protective cover is matched with the cutting disc.

[0008] Furthermore, in order to facilitate the hand-held operation of the angle grinder body, a hand-held column is fixedly connected to one side of the angle grinder body, and an adjustment switch is slidably installed on one side of the surface of the hand-held column.

[0009] Furthermore, in order to facilitate the replacement of the cutting disc on the transmission main shaft, a clamping plate is fixedly connected to the end of the transmission main shaft, a positioning bolt is threadedly connected to the surface of the clamping plate, and the cutting disc is fixedly installed on the transmission main shaft through the positioning bolt.

[0010] Furthermore, in order to connect the angle grinder body to the power supply, a power interface is opened at one end of the hand-held column.

[0011] Furthermore, in order to make the cutting protective cover contract when pressing the angle grinder body during the cutting of the cutting disc, a stabilizing rod is fixedly connected to one side of the surface of the angle grinder body.

[0012] Furthermore, in order to prevent the angle grinder from slipping during use, anti-slip patterns are provided on the surface of the hand-held column, and an anti-slip rubber pad is fixedly installed on the bottom surface of the cutting protective cover.

[0013] Furthermore, in order to improve the cutting accuracy during the cutting of the angle grinder, a scale bar is provided on one side of the surface of the cutting protective cover.

[0014] The beneficial effects of the present utility model are as follows:

[0015] 1. Through the cutting protective cover slidably installed in the support ring, when using the angle grinder to cut materials, the cutting protective cover can always surround and wrap the cutting disc. After pressing the angle grinder body, the telescopic spring is stretched by the pulling force, so that the cutting protective cover moves upward in the support ring, and then the cutting disc gradually cuts the material to be cut. The sparks generated during cutting can be effectively blocked by the cutting protective cover, preventing the sparks from splashing randomly. And when the cutting disc accidentally breaks, the cutting protective cover can also effectively prevent the cutting disc from flying out, greatly improving the safety of using the angle grinder.

[0016] 2. By pressing the cutting protective cover to realize the cutting of materials, it can effectively prevent the angle grinder from shifting or shaking during cutting, thereby preventing the cutting position from deviating and improving the cutting accuracy. Description of the Drawings

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 is a schematic surface structure diagram of a high - safety angle grinder according to an embodiment of the present invention;

[0019] Figure 2 is an internal cross - sectional view of a transparent observation cover and a cutting protection cover in a high - safety angle grinder according to an embodiment of the present invention;

[0020] Figure 3 is a bottom view of a high - safety angle grinder according to an embodiment of the present invention;

[0021] Figure 4 is a side view of a high - safety angle grinder according to an embodiment of the present invention.

[0022] In the figure:

[0023] 1, angle grinder body; 2, transmission main shaft; 3, cutting disc; 4, installation groove; 5, transparent observation cover; 6, support ring; 7, sliding groove; 8, cutting protection cover; 9, limit ring; 10, telescopic spring; 11, telescopic rod; 12, positioning hole; 13, protective shell; 14, hand - held column; 15, adjustment switch; 16, clamping plate; 17, positioning bolt; 18, power interface; 19, stabilizing rod; 20, anti - slip pattern; 21, anti - slip rubber pad; 22, scale bar. Specific embodiments

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0025] According to an embodiment of the present invention, a high - safety angle grinder is provided.

[0026] Embodiment 1:

[0027] As Figures 1 - 4As shown in the figure, a high-safety angle grinder according to an embodiment of the present invention includes an angle grinder body 1 for providing power for the transmission of the angle grinder. A transmission main shaft 2 is fixedly installed at the bottom of the angle grinder body 1, and a cutting disc 3 is fixedly installed at the end of the transmission main shaft 2. The rotation of the cutting disc 3 is driven by the rotation of the transmission main shaft 2 to achieve rotary cutting; an installation groove 4 is formed on one side of the surface of the angle grinder body 1, and a transparent observation cover 5 made of arc-shaped hard plastic is fixedly installed inside the installation groove 4 through bolts for observing the cutting situation; a support ring 6 is fixedly connected to the bottom surface of the transparent observation cover 5, sliding grooves 7 are formed on both sides of the surface of the support ring 6, and a cutting protection cover 8 is slidably installed inside the sliding grooves 7. The cutting protection cover 8 is installed around the outside of the cutting disc 3; a limiting ring 9 is fixedly connected to the top of the cutting protection cover 8, a telescopic spring 10 is fixedly connected to the bottom surface of the limiting ring 9, and the end of the telescopic spring 10 is fixedly connected to the surface of the support ring 6. When the cutting disc 3 needs to cut an object, the angle grinder body 1 is pressed, so that the telescopic spring 10 is stretched after being squeezed, and the angle grinder body 1 drives the cutting disc 3 to move downward relative to the cutting protection cover 8 to achieve the cutting of the material to be cut.

[0028] As Figures 1 - 4As shown in the figure, telescopic rods 11 are slidably installed on both sides of the surface of the angle grinder body 1. Two positioning holes 12 are opened on the surface of the cutting protection cover 8. The positioning holes 12 cooperate with the telescopic rods 11. When the angle grinder needs to grind and process materials, the telescopic spring 10 is pulled to make the cutting protection cover 8 slide upward. After the telescopic rod 11 slides out of the angle grinder body 1 and passes through the positioning hole 12, the upwardly pulled cutting protection cover 8 is limited, so that one side of the cutting disc 3 is completely exposed for grinding and polishing the materials; a protective shell 13 is rotatably installed on one side of the surface of the transmission main shaft 2. One side of the surface of the protective shell 13 cooperates with the cutting disc 3. When the cutting disc 3 is grinding and processing, the protective shell 13 is rotated to block and protect the sparks generated during grinding; one side of the angle grinder body 1 is fixedly connected with a hand-held column 14 for facilitating the hand-held operation of the angle grinder body 1; an adjustment switch 15 is slidably installed on one side of the surface of the hand-held column 14 for controlling the start and stop of the angle grinder after being pressed; the end of the transmission main shaft 2 is fixedly connected with a clamping plate 16. A positioning bolt 17 is threadedly connected to the surface of the clamping plate 16. The cutting disc 3 is fixedly installed on the transmission main shaft 2 through the positioning bolt 17. After the positioning bolt 17 is screwed, the cutting disc 3 can be loaded, unloaded and replaced; a power interface 18 is opened at one end of the hand-held column 14 for supplying power to the angle grinder body 1. A stabilizing rod 19 is fixedly connected to one side of the surface of the angle grinder body 1 for more convenient pressing and cutting when the angle grinder body 1 is in use; anti-slip patterns 20 are provided on the surface of the hand-held column 14, and an anti-slip rubber pad 21 is fixedly installed on the bottom surface of the cutting protection cover 8 for preventing the angle grinder from slipping off the hand during use; a scale bar 22 is provided on one side of the surface of the cutting protection cover 8. By observing the scale bar 22 when pressing the cutting protection cover 8, the accurate control of the cutting depth can be realized.

[0029] To facilitate the understanding of the above technical solutions of the present invention, the working principle or operation method of the present invention in the actual process will be described in detail below.

[0030] In summary, by means of the above technical solutions of the present utility model, during actual use, the cutting blade 3 is aligned with the position where the material needs to be cut, and the angle grinder body 1 is started by pressing the adjustment switch 15, so that the driving main shaft 2 drives the cutting blade 3 to rotate. The angle grinder body 1 is pressed downward by the hand-held column 14 and the stabilizing rod 19. After the cutting protective cover 8 is subjected to pressure, the telescopic spring 10 at the top is extended, and then the angle grinder body 1 drives the cutting blade 3 to move downward relative to the cutting protective cover 8 through the sliding groove 7, so that the cutting blade 3 contacts the material and gradually cuts. During cutting, the cutting protective cover 8 always wraps around the outside of the cutting blade 3, effectively preventing the sparks generated by cutting from splashing randomly. And when the cutting blade 3 accidentally breaks, the cutting protective cover 8 can also effectively prevent the cutting blade 3 from flying out, improving the safety of using the angle grinder; when the angle grinder needs to use the side surface of the cutting blade 3 to grind the material, the telescopic spring 10 is pulled to make the cutting protective cover 8 slide upward in the sliding groove 7, and the telescopic rod 11 is slid out of the angle grinder body 1 and then passed through the positioning hole 12 to limit the upwardly pulled cutting protective cover 8, so that one side surface of the cutting blade 3 is completely exposed for grinding and polishing the material.

[0031] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A highly safe angle grinder, characterized in that: The invention comprises an angle grinder body (1), a transmission spindle (2) is fixedly mounted on the bottom of the angle grinder body (1), a cutting blade (3) is fixedly mounted on the end of the transmission spindle (2), a mounting groove (4) is provided on one side of the surface of the angle grinder body (1), a transparent observation cover (5) is fixedly mounted inside the mounting groove (4), a support ring (6) is fixedly connected to the bottom surface of the transparent observation cover (5), sliding grooves (7) are provided on both sides of the surface of the support ring (6), a cutting protection cover (8) is slidably mounted inside the sliding groove (7), a limiting ring (9) is fixedly connected to the top of the cutting protection cover (8), a telescopic spring (10) is fixedly connected to the bottom surface of the limiting ring (9), and the end of the telescopic spring (10) is fixedly connected to the surface of the support ring (6).

2. The angle grinder with high safety according to claim 1, characterized in that: Telescopic rods (11) are slidably mounted on both sides of the surface of the angle grinder body (1); two positioning holes (12) are opened on the surface of the cutting protective cover (8); the positioning holes (12) cooperate with the telescopic rods (11); a protective shell (13) is rotatably mounted on one side of the surface of the transmission spindle (2); and one side of the surface of the protective shell (13) cooperates with the cutting blade (3).

3. The angle grinder with high safety according to claim 1, characterized in that: A hand-held column (14) is fixedly connected to one side of the angle grinder body (1), and an adjustment switch (15) is slidably mounted on one side of the surface of the hand-held column (14).

4. The angle grinder with high safety according to claim 1, characterized in that: The end of the transmission main shaft (2) is fixedly connected with a clamping plate (16), the surface of the clamping plate (16) is threadedly connected with a positioning bolt (17), and the cutting blade (3) is fixedly mounted on the transmission main shaft (2) via the positioning bolt (17).

5. The angle grinder with high safety according to claim 3, characterized in that: One end of the handheld column (14) is provided with a power supply interface (18).

6. The angle grinder with high safety according to claim 1, characterized in that: A stabilizing rod (19) is fixedly connected to one side of the surface of the angle grinder body (1).

7. The angle grinder with high safety according to claim 5, characterized in that: The surface of the hand-held column (14) is provided with anti-skid patterns (20), and the bottom surface of the cutting protection cover (8) is fixedly mounted with an anti-skid rubber pad (21).

8. The angle grinder with high safety according to claim 1, characterized in that: A scale bar (22) is provided on one side of the surface of the cutting protection cover (8).

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