Combined waterproof and dustproof angle grinder for engraving, grinding and polishing

Abstract

The utility model discloses a combined waterproof and dustproof angle grinder for engraving, grinding and polishing, which comprises a grinder body and a grinder head, a switch is mounted on the grinder body, a power transmission line with a plug is connected to the rear end of the grinder body, an angle grinding wheel is rotatably mounted on the lower side surface of the grinder head, a waterproof cover is sleeved on the grinder body, and one end of the waterproof cover is a closing ferrule part. The other end part of the waterproof cover is an open part; the closing-up ferrule part of the waterproof cover is further connected with a dust cover in an overturning mode, and when the dust cover is overturned and unfolded, the dust cover is overturned towards the machine head and forms an included angle with the upper surface of the waterproof cover. According to the utility model, the waterproof cover and the dustproof cover form a combined modular assembly and can be assembled and disassembled with the machine body of the angle grinder in a combined manner; water mist or water spray generated in the polishing process is blocked by the waterproof cover, and the technical effects of water resistance and slipping prevention of the machine body of the angle grinder are achieved; dust and chippings generated in the grinding process of the angle grinding wheel are blocked by the dustproof cover and fall in front of the angle grinder, and a carving process worker is effectively protected.

Description

Technical Field

[0001] This utility model relates to the field of angle grinders and power tools, and in particular to a combined waterproof and dustproof angle grinder for carving, grinding and polishing. Background Technology

[0002] An angle grinder, also known as a grinding machine or disc grinder, is a handheld power tool that uses grinding discs (also called angle grinding wheels) to grind and polish the surfaces of objects. It is primarily used for grinding and polishing the surfaces of metal and stone. In the carving industry, after metal and stone carvings are completed, the surfaces need to be ground and polished. Taking stone carvings as an example, when the angle grinder is working, the grinding wheel heats up rapidly. The carver adds water to the stone surface to prevent excessive heat from friction between the grinding wheel and the stone, which would be detrimental to the grinding process. This also helps to cool the grinding wheel, ensuring it operates at a safe temperature and preventing damage. However, the stone carving process requires repeated grinding and polishing of the stone surface. The need for constant water replenishment, coupled with the evaporation of water as it cools, creates a water mist. This mist, flowing onto the angle grinder, can cause electrical leakage. Since the sculptor's hand is gripping the grinder, this can lead to an electric shock and endanger their life. The water mist also makes the grinder slippery, making it difficult for the sculptor to grip the handle (located on the machine). Since sculptors need to perform fine and repeated grinding and polishing, this significantly impacts work efficiency. The slippery surface also poses a risk of injury (e.g., fingers touching the grinding area are easily chafed by the grinding wheel). Furthermore, the grinding process generates considerable dust, which rises to the surface. Current angle grinders lack dust protection, forcing sculptors to repeatedly check the grinding area, leading to the inhalation of significant amounts of dust and even the potential for flying debris and sparks (damaging the sculptor's eyes) and impacting their health. Existing angle grinders lack protection for sculptors during their work. The inventor, a master of arts and crafts, has suffered greatly from this problem during his more than 30 years of work and teaching in craft carving and discovered the aforementioned technical issues. As a result, he has made innovative improvements and researches to angle grinders for carving, grinding, and polishing operations, including how to implement waterproof and dustproof protection, and how to add a combined waterproof and dustproof protection device to the angle grinder. Utility Model Content

[0003] The purpose of this utility model is to solve the problem of waterproof and dustproof protection for angle grinders in carving, grinding, and polishing operations. It provides a combined waterproof and dustproof angle grinder for carving, grinding, and polishing. The waterproof cover blocks water mist or splashes generated during grinding, achieving the functions of waterproofing and anti-slip technology for the angle grinder body. The dust, debris, and sparks generated by the grinding wheel during grinding are blocked by the dust cover. The dust and debris are blocked by the dust cover and fall in front of the angle grinder, effectively protecting the carving craftsman and playing a very good protective role.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A combined waterproof and dustproof angle grinder for carving, grinding, and polishing includes a body and a head connected to the front end of the body. A switch is installed on the lower surface of the hand grip area of ​​the body, and a power cord with a plug is connected to the rear end of the body. An angle grinding wheel is rotatably installed on the lower side of the head. A waterproof cover is fitted onto the body, with one end of the waterproof cover having a constricted collar and the other end having an open end. The constricted collar of the waterproof cover is also flipped to connect to a dust cover. When the dust cover is folded and stored, it lies flat against the upper surface of the waterproof cover. When the dust cover is flipped and unfolded, it flips towards the head and forms an angle with the upper surface of the waterproof cover.

[0006] To better realize this utility model, the waterproof cover is generally funnel-shaped, the diameter of the closed loop part of the waterproof cover is smaller than that of the open part, and the waterproof cover gradually narrows from the open part to the closed loop part.

[0007] Preferably, the waterproof cover is made of waterproof and transparent material, and the inside of the closing ring of the waterproof cover has an elastic closing rubber ring. The closing ring of the waterproof cover is fitted onto the end of the machine body near the machine head by the elastic closing rubber ring.

[0008] Preferably, the machine body has a waterproof cover mounting groove at one end near the machine head, and the closing sleeve and its elastic closing rubber ring are fitted into the waterproof cover mounting groove.

[0009] Preferably, the dust cover is fan-shaped and made of transparent plastic.

[0010] Preferably, the fan-shaped surface of the dust cover adopts a fan-shaped folding fan structure.

[0011] Preferably, the trumpet-shaped cylindrical cover of the waterproof cover adopts a folding fan structure or curtain pleats for the cylindrical body to be stored and unfolded.

[0012] Preferably, an auxiliary handle is also connected to the side of the machine head, and an angle grinding wheel protective cover is provided on the outside of the angle grinding wheel and connected to the lower surface of the machine head.

[0013] Preferably, the trumpet-shaped cylindrical cover of the waterproof cover is made of waterproof fabric.

[0014] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0015] (1) The dust cover of this utility model is folded and combined with the waterproof cover. The waterproof cover and the dust cover constitute a modular assembly. The modular assembly can be assembled and disassembled with the body of the angle grinder, making it very flexible and convenient to use.

[0016] (2) When the waterproof cover of this utility model is in use, it can be flipped towards the machine head and form an angle with the upper surface of the waterproof cover. At this time, the dust cover is tilted above the machine head. At the same time, the dust cover can be unfolded and the protective area is increased. The dust, debris and sparks generated by the angle grinder during the grinding process are blocked by the dust cover. The dust and debris are blocked by the dust cover and fall in front of the angle grinder, effectively protecting the carving craftsman and playing a very good protective role.

[0017] (3) When the rotating grinding wheel of this utility model grinds or polishes the surface of stone or other objects, water is continuously added during the grinding process. The water mist or water droplets are blocked by the waterproof cover and will not wet the machine body. Therefore, there will be no slippage or water leakage problems in the machine body, thus achieving the technical function of waterproofing and anti-slipping. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention after the waterproof cover and dust cover are assembled and installed;

[0019] Figure 2 for Figure 1 A structural diagram in the main view direction;

[0020] Figure 3 This is a schematic diagram of the fan-shaped folding fan structure of the dust cover fan-shaped surface in the embodiment;

[0021] Figure 4 for Figure 1 A schematic diagram of the structure without the dust cover assembled and installed.

[0022] Figure 5 for Figure 4 A structural diagram in the rear view direction;

[0023] Figure 6 for Figure 5 A schematic diagram of the three-dimensional structure viewed from the left.

[0024] The names corresponding to the reference numerals in the attached figures are as follows:

[0025] 1-Machine body, 2-Machine head, 3-Power transmission line, 4-Switch, 5-Auxiliary handle, 6-Angle grinding wheel, 7-Waterproof cover, 8-Constriction collar part, 9-Dust cover, 10-Opening part, 11-Fan-shaped surface. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the embodiments:

[0027] Example

[0028] like Figures 1-3 As shown, a combined waterproof and dustproof angle grinder for carving, grinding, and polishing includes a body 1 and a head 2 connected to the front end of the body 1. A switch 4 is installed on the lower surface of the handgrip area of ​​the body 1. A power cord 3 with a plug is connected to the rear end of the body 1 (the plug is connected to an external power source, and the power cord 3 supplies power to the angle grinder). An angle grinding wheel 6 is rotatably mounted on the lower side of the head 2. Power is supplied by the power cord 3, and the head 2 drives the angle grinding wheel 6 to rotate and grind the surface of the object, achieving grinding and polishing treatment of the object surface. The body 1, head 2, and angle grinding wheel 6 of the angle grinder are all existing mature technologies. An auxiliary handle 5 is also connected to the side of the head 2, and an angle grinding wheel protective cover connected to the lower surface of the head 2 is also provided on the outside of the angle grinding wheel 6.

[0029] A waterproof cover 7 is fitted onto the machine body 1. One end of the waterproof cover 7 is a closed loop portion 8 (which locks onto the machine body 1), and the other end is an open portion 10 (which is an open opening). The closed loop portion 8 of the waterproof cover 7 is also flipped to connect to a dust cover 9. When the dust cover 9 is folded and stored, it lies flat against the upper surface of the waterproof cover 7. When the dust cover 9 is flipped open, it flips towards the machine head 2 and forms an angle with the upper surface of the waterproof cover 7. As a master of arts and crafts, the inventor, through more than 30 years of work in craft carving and teaching, discovered the technical problem described in the background technology. Due to the continuous addition of water during the polishing process, water mist or splashes often wet the machine body 1, causing slippage and water ingress and electrical leakage. This prompted the inventor to solve the technical problem. Initially, a waterproof sleeve cage was fitted over the front end of the machine head 2, allowing the user to reach into the waterproof sleeve cage to grip the machine body 1, achieving the technical functions of waterproofing and preventing slippage. Through continuous research and development by the inventors, taking into account both dustproof and waterproof functions, the dust cover 9 of this utility model is combined and set on the waterproof cover 7. The waterproof cover 7 and the dust cover 9 are an integral structural assembly, which can be assembled and disassembled with the body 1 of the angle grinder as a modular component, making it very flexible in use.

[0030] like Figure 1 , Figure 2 , Figures 4-6As shown, the waterproof cover 7 is generally trumpet-shaped. The diameter of the constricting ring portion 8 of the waterproof cover 7 is smaller than that of the open portion 10. The waterproof cover 7 gradually tapers from the open portion 10 to the constricting ring portion 8. The waterproof cover 7 is made of waterproof transparent material. The constricting ring portion 8 of the waterproof cover 7 has an elastic constricting rubber ring inside. The constricting ring portion 8 of the waterproof cover 7 is fitted onto the end of the machine body 1 near the machine head 2 by the elastic constricting rubber ring. The waterproof cover 7 of this utility model can be made of a relatively rigid material (such as transparent plastic). In this case, the constricting ring portion 8 of the waterproof cover 7 is elastically contractible, and a flexible cloth can be used to connect the cover body of the waterproof cover 7 and the constricting ring portion 8. Alternatively, it can be made of a waterproof cloth of a certain thickness (with a certain shaping effect, or other flexible materials with a certain shaping effect). For example, the trumpet-shaped cylindrical cover of the waterproof cover 7 is made of waterproof cloth.

[0031] In some embodiments, the body 1 has a waterproof cover mounting groove at one end near the head 2, and the closing collar 8 and its elastic closing rubber ring are fitted into the waterproof cover mounting groove. More preferably, the trumpet-shaped cylindrical cover of the waterproof cover 7 adopts a folding fan structure or curtain pleats for the tube to be stored and unfolded. The trumpet-shaped cylindrical cover of the waterproof cover 7 can be stored and the diameter of the tube can be reduced, or it can be unfolded and the diameter of the tube can be increased.

[0032] In some embodiments, the dust cover 9 is generally fan-shaped and is made of transparent plastic.

[0033] In some embodiments, the fan-shaped surface 11 of the dust cover 9 adopts a fan-shaped folding fan structure, such as... Figure 3 As shown.

[0034] Taking stone carving as an example, in use, the waterproof cover 7 and the dust cover 9 are a combined modular component. The diameter of the constricting collar 8 of the waterproof cover 7 is enlarged and fitted onto the machine body 1 from the rear. The constricting collar 8 is moved to the front of the machine body 1, where it elastically closes and locks tightly to the front of the machine body 1. The cylindrical body of the waterproof cover 7 then covers most of the machine body 1. The carver's hand reaches into the waterproof cover 7 from the open end 10 and grasps the gripping part of the machine body 1. The dust cover 9 is then flipped towards the machine head 2, forming an angle with the upper surface of the waterproof cover 7 (at this point, the dust cover 9 is no longer flat against the upper surface of the waterproof cover 7). The dust cover 9 is now tilted above the machine head 2, forming a dustproof component. The dust cover 9 can also be unfolded to increase the protective area. When the angle grinder is started, the rotating grinding wheel 6 grinds or polishes the surface of stone or other objects. Because water is continuously added during grinding, the water mist or splashes are blocked by the waterproof cover 7, preventing the machine body 1 from getting wet. This eliminates the problems of slippage and water ingress into the machine body 1, achieving a waterproof and anti-slip effect. Dust, debris, and sparks generated by the grinding wheel 6 during grinding are blocked by the dust cover 9. The dust cover 9 prevents dust and debris from being released towards the person behind it; instead, the dust and debris fall in front of the angle grinder, effectively protecting the carving craftsman and providing excellent protection.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A combined waterproof and dustproof angle grinder for carving, grinding, and polishing, comprising a body and a head connected to the front end of the body, a switch installed on the lower surface of the hand grip area of ​​the body, a power cord with a plug connected to the rear end of the body, and a grinding wheel rotatably mounted on the lower side of the head, characterized in that: The machine body is fitted with a waterproof cover, one end of which is a closed loop and the other end is an open opening; the closed loop of the waterproof cover is also connected to a dust cover. When the dust cover is folded and stored, it lies flat against the upper surface of the waterproof cover. When the dust cover is unfolded, it flips towards the machine head and forms an angle with the upper surface of the waterproof cover.

2. The combined waterproof and dustproof angle grinder for carving, grinding, and polishing according to claim 1, characterized in that: The waterproof cover is generally trumpet-shaped, with the diameter of the constricted loop portion being smaller than the open portion, and the waterproof cover gradually narrows from the open portion to the constricted loop portion.

3. A combined waterproof and dustproof angle grinder for carving, grinding, and polishing according to claim 1, characterized in that: The waterproof cover is made of waterproof and transparent material. The inside of the closing ring of the waterproof cover has an elastic closing rubber ring. The closing ring of the waterproof cover is fitted onto the end of the machine body near the machine head by the elastic closing rubber ring.

4. A combined waterproof and dustproof angle grinder for carving, grinding, and polishing according to claim 3, characterized in that: The machine body has a waterproof cover mounting groove at one end near the machine head, and the closing sleeve and its elastic closing rubber ring are fitted into the waterproof cover mounting groove.

5. A combined waterproof and dustproof angle grinder for engraving, grinding, and polishing according to claim 1, characterized in that: The dust cover is fan-shaped and made of transparent plastic.

6. A combined waterproof and dustproof angle grinder for engraving, grinding, and polishing according to claim 5, characterized in that: The dust cover has a fan-shaped folding fan structure.

7. A combined waterproof and dustproof angle grinder for carving, grinding, and polishing according to claim 1, characterized in that: The waterproof cover uses a folding fan structure or curtain pleats to store and unfold the flared cylindrical body.

8. A combined waterproof and dustproof angle grinder for carving, grinding, and polishing according to claim 1, characterized in that: An auxiliary handle is also connected to the side of the machine head, and a protective cover for the grinding wheel is provided on the outside of the grinding wheel and connected to the lower surface of the machine head.

9. A combined waterproof and dustproof angle grinder for carving, grinding, and polishing according to claim 1, characterized in that: The funnel-shaped cylindrical cover of the waterproof cover is made of waterproof fabric.

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