Dust collection device for an angle grinder

Abstract

The application relates to a dust collecting device for an angle grinder. The dust collecting device for the angle grinder mainly comprises a bottom disc and an outer cover, a first connecting piece for connecting with a wheel disc of the angle grinder is arranged on the bottom disc, a second connecting piece for connecting with the outer cover is arranged around the bottom disc, and a first dust outlet is arranged on one side of the bottom disc; a third connecting piece for connecting with the bottom disc is arranged around the outer cover, a second dust outlet is arranged on one side of the outer cover; the first dust outlet and the second dust outlet form a complete dust outlet and are connected with a dust guide pipe, and the dust guide pipe is connected with a dust collector. The application can remove the dust and fragments generated in the cutting process in real time through the dust collector, so that the emission of the dust is reduced, and the effects of protecting the environment and protecting the personnel are achieved.

Description

Technical Field

[0001] This application relates to the field of angle grinder auxiliary equipment technology, and in particular to an angle grinder dust collection device. Background Technology

[0002] In construction projects, angle grinders are frequently used for trenching for electrical conduits and for cutting tiles and concrete. When cutting tiles or concrete, fragments and dust fly at high speeds, easily cutting skin or damaging eyes. Furthermore, the large amounts of dust generated during tile and concrete cutting can cause pneumoconiosis, and if not cleaned up, it will pollute the environment.

[0003] In the current use of angle grinders, a protective cover is often installed around the cutting disc to protect the user from flying debris. However, these covers generally obstruct the view, and some operators remove them for easier observation, thus losing protection against flying debris and increasing the probability of accidents. Furthermore, existing angle grinder covers only prevent injury from flying debris and lack dust collection and treatment capabilities, which can easily cause environmental pollution during use and lead to operators inhaling excessive dust, causing health problems.

[0004] Therefore, how to overcome the shortcomings of existing technologies and solve the dust problem generated by angle grinders is a difficult problem to be solved in this technical field. Utility Model Content

[0005] In view of the above-mentioned defects or improvement needs of the prior art, and in order to solve the dust problem generated by angle grinders, this application provides an angle grinder dust collection device.

[0006] The embodiments of this application adopt the following technical solutions: This application provides a dust collection device for an angle grinder, including a chassis 1 and an outer cover 2. The chassis 1 is provided with a first connector 101 for connecting to the angle grinder wheel, and a second connector 102 for connecting to the outer cover 2 is provided around the chassis 1. A first dust outlet 103 is provided on one side of the chassis 1. A third connector 201 for connecting to the chassis 1 is provided around the outer cover 2, and a second dust outlet 202 is provided on one side of the outer cover 2. The first dust outlet 103 and the second dust outlet 202 form a complete dust outlet and are connected to a dust conduit 3. The dust conduit 3 is connected to a vacuum cleaner 4.

[0007] By adopting the above technical solution, the chassis 1 can be fixed on the angle grinder disc, the abrasive cutting disc can be installed, and then the outer cover 2 can be installed on the chassis 1. This can block the flying debris generated when the abrasive cutting disc is working. After the chassis 1 and the outer cover 2 are installed, a dust outlet will be formed. This dust outlet is connected to a vacuum cleaner 4 through a dust duct 3. The vacuum cleaner 4 can then remove the dust and debris generated during the cutting process in real time, thereby reducing dust emissions and achieving the effect of protecting the environment and personnel.

[0008] In some embodiments, the chassis 1 includes a base plate 104 and a first side plate 105. The first side plate 105 is arc-shaped and vertically disposed at the edge of the base plate 104. The first connector 101 is disposed in the middle of the base plate 104, the second connector 102 is disposed on the outside of the first side plate 105, and the first dust outlet 103 is disposed on the outside of the first side plate 105 and communicates with the inside.

[0009] By adopting the above technical solution, the chassis 1 can be installed on the angle grinder disc through the first connecting piece 101 in the middle, and a grinding wheel cutting disc placement area and a dust collection area are formed between the base plate 104 and the first side plate 105, and the dust is transferred to the rear through the first dust outlet 103.

[0010] In some embodiments, the first connector 101 includes a circular hoop 1011 and a connecting plate 1012. A portion of the connecting plate 1012 is fixed to the circular hoop 1011, and another portion of the connecting plate 1012 is fixed to the base plate 104. The circular hoop 1011 has an opening and connecting pieces 1013 are provided on both sides of the opening. The connecting pieces 1013 are provided with screw holes for installing bolts.

[0011] By adopting the above technical solution, the circular hoop 1011 is fitted onto the outer circumference of the angle grinder wheel, and the two connecting pieces 1013 are locked with bolts, thus completing the fixation of the first connecting piece 101 to the angle grinder wheel, which also completes the fixation of the chassis 1 to the angle grinder wheel; this fixing method is convenient and quick, and disassembly is also simple.

[0012] In some embodiments, the second connector 102 includes a plurality of snap fasteners 1021 evenly distributed along the outer side of the first side plate 105.

[0013] By adopting the above technical solution, the second connector 102 uses a snap-fit ​​method, combined with the slot of the third connector 201, which can easily fix or disassemble the chassis 1 and the outer cover 2. It is simple and convenient and suitable for various construction sites.

[0014] In some embodiments, the first dust outlet 103 includes a first semi-circular arc pipe 1031, one side of the first semi-circular arc pipe 1031 is connected to and communicates with the first side plate 105, the other side of the first semi-circular arc pipe 1031 extends outward from the first side plate 105, and the end face of the first semi-circular arc pipe 1031 is flush with the end face of the first side plate 105.

[0015] By adopting the above technical solution, the first semi-circular arc pipe 1031 is flush with the end face of the first side plate 105. After the chassis 1 and the outer cover 2 are connected and fixed, it can be ensured that the first dust outlet 103 and the second dust outlet 202 form a complete dust outlet without leaving any gaps in the middle.

[0016] In some embodiments, the outer cover 2 includes a transparent top plate 203 and a second side plate 204, the second side plate 204 being arc-shaped and vertically disposed at the edge of the top plate 203; the third connector 201 is disposed on the outside of the second side plate 204, and the second dust outlet 202 is disposed on the outside of the second side plate 204 and communicates with the inside.

[0017] By adopting the above technical solution, the outer cover 2 can be installed on the chassis 1 via the third connector 201. The top plate 203, the second side plate 204, the first side plate 105, and the bottom plate 104 form a placement area for the grinding wheel cutting disc and a dust collection area. The dust is then transferred to the rear through the first dust outlet 103 and the second dust outlet 202. Simultaneously, the outer cover 2 uses a transparent top plate 203 and a transparent second side plate 204, allowing operators to easily observe the working status of the grinding wheel cutting disc without affecting their field of vision, thus improving operational convenience and safety.

[0018] In some embodiments, the third connector 201 includes a plurality of locking plates 2011 evenly distributed along the outer side of the second side plate 204, and the locking plates 2011 are provided with locking slots 2012.

[0019] By adopting the above technical solution, the third connector 201 uses a slot and, in conjunction with the buckle of the second connector 102, can easily fix or disassemble the chassis 1 and the outer cover 2. This is simple, convenient, and suitable for various construction sites.

[0020] In some embodiments, the second dust outlet 202 includes a second semi-circular arc pipe 2021, one side of which is connected to and communicates with the second side plate 204, the other side of which extends outward from the second side plate 204, and the end face of the second semi-circular arc pipe 2021 is flush with the end face of the second side plate 204.

[0021] By adopting the above technical solution, the second semi-circular arc pipe 2021 is flush with the end face of the second side plate 204. After the chassis 1 and the outer cover 2 are connected and fixed, it can be ensured that the first dust outlet 103 and the second dust outlet 202 form a complete dust outlet without any gap in the middle.

[0022] In some embodiments, the second connector 102 includes a plurality of chassis fixing pieces 1022, and the third connector 201 includes a plurality of outer cover fixing pieces 2013. Both the chassis fixing pieces 1022 and the outer cover fixing pieces 2013 are provided with screw holes for fixing by bolts.

[0023] By adopting the above technical solution, the second connector 102 and the third connector 201 are connected by bolts, that is, the chassis 1 and the outer cover 2 are connected by bolts. Compared with the snap-fit ​​connection, the bolt connection is more stable and less likely to loosen or fall off.

[0024] In some embodiments, the edge of the chassis 1 facing the outer cover 2 is provided with a first step 106, and the edge of the outer cover 2 facing the chassis 1 is provided with a second step 205, wherein the first step 106 and the second step 205 are matched in shape and size.

[0025] By adopting the above technical solution, based on the cooperation of the first step 106 and the second step 205, the tightness of the connection between the chassis 1 and the outer cover 2 can be strengthened, and the sealing effect after installation can be guaranteed.

[0026] Compared with the prior art, the beneficial effects of this application include, but are not limited to, the following: 1. The base 1 can be fixed on the angle grinder disc, and after the abrasive cutting disc is installed, the outer cover 2 can be installed on the base 1. This can block the flying debris generated when the abrasive cutting disc is working. After the base 1 and the outer cover 2 are installed, a dust outlet will be formed. This dust outlet is connected to a vacuum cleaner 4 through a dust duct 3. The vacuum cleaner 4 can then remove the dust and debris generated during the cutting process in real time, thereby reducing dust emissions and achieving the effect of protecting the environment and personnel.

[0027] 2. The outer cover 2 uses a transparent top plate 203 and a second side plate 204, which allows operators to easily observe the working status of the grinding wheel cutting disc without affecting the operator's field of vision, thus improving the convenience and safety of operation.

[0028] 3. Based on the cooperation of the first step 106 and the second step 205, the tightness of the connection between the chassis 1 and the outer cover 2 can be strengthened, and the sealing effect after installation can be guaranteed. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly described below. Obviously, the drawings described below are merely some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0030] Figure 1 This is a schematic diagram of the structure of a dust collection device for an angle grinder provided in an embodiment of this application; Figure 2 This is a schematic diagram of the chassis structure provided in an embodiment of this application; Figure 3 This is a schematic diagram of the structure of the outer cover provided in an embodiment of this application; Figure 4 This is a schematic diagram of the structure of the connecting plate provided in an embodiment of this application; Figure 5 This is a schematic diagram of the chassis and outer cover snap-fit ​​connection provided in an embodiment of this application; Figure 6 A schematic diagram of the chassis and outer cover bolt connection provided in an embodiment of this application; Figure 7 This is a schematic diagram of the first step on the chassis provided in an embodiment of this application; Figure 8 This is a schematic diagram of the second step on the outer cover provided in an embodiment of this application; Figure 9 This is a schematic diagram of an angle grinder after the grinding wheel cutting disc has been removed, as provided in an embodiment of this application. Figure 10 This is a schematic diagram of the angle grinder after mounting the chassis according to an embodiment of this application; Figure 11 This is a schematic diagram of the angle grinder with the mounting chassis and grinding wheel cutting disc provided in an embodiment of this application; Figure 12 This is a schematic diagram of the angle grinder mounting chassis and outer cover provided in an embodiment of this application. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application. Furthermore, the technical features involved in the various embodiments described below can be combined with each other as long as they do not conflict with each other. The application will now be described in detail with reference to the accompanying drawings and embodiments.

[0032] like Figure 1As shown in the illustration, this application provides a dust collection device for an angle grinder, including a chassis 1 and an outer cover 2. A large portion of the grinding wheel cutting disc 6 of the angle grinder 5 is located within the space formed by the chassis 1 and the outer cover 2, while a small portion is located outside this space. A first dust outlet 103 is provided on one side of the chassis 1, and a second dust outlet 202 is provided on one side of the outer cover 2. The first dust outlet 103 and the second dust outlet 202 form a complete dust outlet and are connected to a dust conduit 3. The dust conduit 3 is connected to a vacuum cleaner 4. Optionally, the dust outlet and the dust conduit 3 are connected and fixed using a belt, and then a portable small vacuum cleaner is connected externally. During operation, most of the dust generated by the grinding wheel cutting disc 6 is driven into the space formed by the chassis 1 and the outer cover 2 by the rotation of the grinding wheel cutting disc 6. The vacuum cleaner 4, operating in real time, can remove the dust from the space formed by the chassis 1 and the outer cover 2 through the dust conduit 3 and the dust outlet, reducing dust emissions and achieving the purpose of environmental protection. It also protects operators and greatly reduces their chance of contracting pneumoconiosis.

[0033] refer to Figure 2 As shown, in some embodiments, the chassis 1 is provided with a first connector 101 for connecting to the angle grinder disc, the chassis 1 is surrounded by a second connector 102 for connecting to the outer cover 2, and the outer cover 2 is surrounded by a third connector 201 for connecting to the chassis 1. The connection and fixation between the chassis 1 and the outer cover 2 are completed through the cooperation of the second connector 102 and the third connector 201. Using the above scheme, the chassis 1 can be fixed around the angle grinder disc using the first connector 101. Then, after installing the abrasive cutting disc on the angle grinder disc, the outer cover 2 is installed on the chassis 1, thus completing the installation of the entire protective cover and achieving the purpose of blocking the spatter generated when the abrasive cutting disc is working.

[0034] refer to Figure 2 and Figure 3As shown, in some embodiments, the chassis 1 includes a base plate 104 and a first side plate 105. One side of the base plate 104 is arc-shaped, and the first side plate 105 is arc-shaped and perpendicularly disposed on the arc-shaped edge of the base plate 104. The base plate 104 and the first side plate 105 can be welded or integrally formed. Optionally, the chassis 1 is a stainless steel chassis, and all its component connections are fully welded and rust-proofed. The first connector 101 is disposed in the middle of the base plate 104, the second connector 102 is disposed on the outside of the first side plate 105, and the first dust outlet 103 is disposed on the outside of the first side plate 105 and communicates with the inside. The outer cover 2 includes a transparent top plate 203 and a second side plate 204. One side of the top plate 203 is arc-shaped, and the second side plate 204 is arc-shaped and perpendicularly disposed on the edge of the top plate 203. The top plate 203 and the second side plate 204 can be welded or integrally formed. Preferably, the outer cover 2 is made of polyester fiber, and all its components are integrally molded. The third connector 201 is located on the outside of the second side plate 204, and the second dust outlet 202 is located on the outside of the second side plate 204 and communicates with the inside.

[0035] Through the above technical solution, the chassis 1 can be mounted on the angle grinder disc via the first connecting member 101 in the middle, and the outer cover 2 can be mounted on the chassis 1 via the third connecting member 201. The top plate 203, the second side plate 204, the first side plate 105, and the bottom plate 104 form a placement area for the grinding wheel cutting disc and a dust collection area. Dust is then transferred to the rear through the first dust outlet 103 and the second dust outlet 202. Simultaneously, the outer cover 2 uses a transparent top plate 203 and second side plate 204, allowing the operator to easily observe the working status of the grinding wheel cutting disc without affecting the operator's field of vision, thus improving operational convenience and safety. Preferably, the top plate 203 and the second side plate 204 are made of high-transmittance durable board, which has sufficient strength and does not obstruct the operator's view.

[0036] refer to Figure 2 As shown, in some embodiments, the first connecting member 101 includes a circular hoop 1011 and a connecting plate 1012. There can be two connecting plates 1012, located on opposite sides of the circular hoop 1011. A portion of each connecting plate 1012 is fixed to the circular hoop 1011, and another portion is fixed to the base plate 104. (Reference) Figure 4As shown, one side of the connecting plate 1012 is arc-shaped to match the outer circumference of the circular hoop 1011. During installation, the arc-shaped side of the connecting plate 1012 is fully welded to the circular hoop 1011, and the top surface of the other side of the connecting plate 1012 is fully welded to the bottom of the base plate 104. Additionally, the circular hoop 1011 has an opening with connecting pieces 1013 on both sides. The connecting pieces 1013 and the circular hoop 1011 can be welded together or integrally formed. The connecting pieces 1013 have screw holes for mounting bolts. Using this technical solution, after the circular hoop 1011 is fitted onto the outer circumference of the angle grinder wheel, the two connecting pieces 1013 are locked together with bolts, thus completing the fixation of the first connecting piece 101 to the angle grinder wheel, and also completing the fixation of the base plate 1 to the angle grinder wheel. This fixing method is convenient and quick, and disassembly is simple, making it suitable for various construction scenarios.

[0037] Optionally, the first connector 101 can also be directly fixed to the base plate 104 and the angle grinder wheel by bolt connection. When bolt connection is used, the first connector 101 can be directly connected with a connector such as a right-angle fixing piece, and then connected with bolts.

[0038] refer to Figure 2 and Figure 3 As shown, in some embodiments, the second connector 102 includes a plurality of buckles 1021 evenly distributed along the outer side of the first side plate 105, and the third connector 201 includes a plurality of retaining plates 2011 evenly distributed along the outer side of the second side plate 204, wherein the retaining plates 2011 are provided with retaining grooves 2012; wherein the number of buckles 1021 is the same as the number of retaining plates 2011, and the positional distribution of the buckles 1021 corresponds one-to-one with the positional distribution of the retaining plates 2011. When installing the chassis 1 and the outer cover 2, the outer cover 2 is directly fastened onto the chassis 1, so that the end face of the second side plate 204 of the outer cover 2 is in contact with the end face of the first side plate 105 of the chassis 1, as shown in the reference. Figure 5 As shown, at this point, the buckle 1021 can be snapped into the slot 2012 on the card plate 2011, completing the fixation of the chassis 1 and the outer cover 2. The buckle-slot connection method allows for convenient fixing or disassembly of the chassis 1 and the outer cover 2, making it simple, convenient, and suitable for various construction sites.

[0039] Optionally, a card plate with a slot can be provided on the first side plate 105 of the chassis 1, and a buckle can be provided on the second side plate 204 of the outer cover 2. The principle is the same, so it will not be described in detail here.

[0040] Optional, see reference Figure 6As shown, in some embodiments, the second connector 102 includes a plurality of chassis fixing pieces 1022, and the third connector 201 includes a plurality of outer cover fixing pieces 2013. Both the chassis fixing pieces 1022 and the outer cover fixing pieces 2013 are provided with screw holes for fixing with bolts. Through the above technical solution, the second connector 102 and the third connector 201 are connected by bolts, that is, the chassis 1 and the outer cover 2 are connected by bolts. Compared with a snap-fit ​​connection, the bolt connection is more stable and less prone to loosening or falling off.

[0041] refer to Figure 2 , Figure 3 , Figure 7 and Figure 8 As shown, in some embodiments, the first dust outlet 103 includes a first semi-circular arc pipe 1031, one side of which is connected to and communicates with the first side plate 105, and the other side of which extends outward from the first side plate 105. The end face of the first semi-circular arc pipe 1031 is flush with the end face of the first side plate 105. The second dust outlet 202 includes a second semi-circular arc pipe 2021, one side of which is connected to and communicates with the second side plate 204, and the other side of which extends outward from the second side plate 204. The end face of the second semi-circular arc pipe 2021 is flush with the end face of the second side plate 204. With the above technical solution, the first semi-circular arc pipe 1031 is flush with the end face of the first side plate 105, and the second semi-circular arc pipe 2021 is flush with the end face of the second side plate 204. After the chassis 1 and the outer cover 2 are connected and fixed, it can be ensured that the first dust outlet 103 and the second dust outlet 202 form a complete dust outlet without any gap in the middle.

[0042] refer to Figure 7 and Figure 8 As shown, in some embodiments, the edge of the chassis 1 facing the outer cover 2 is provided with a first step 106, and the edge of the outer cover 2 facing the chassis 1 is provided with a second step 205. The first step 106 and the second step 205 are matched in shape and size. Based on the cooperation of the first step 106 and the second step 205, the tightness of the connection between the chassis 1 and the outer cover 2 can be enhanced, and the sealing effect after installation can be guaranteed.

[0043] For details, please refer to Figure 7 and Figure 8As shown, the first step 106 may include a first side plate step 1061 disposed at the edge of the end face of the first side plate 105 and a first semi-circular arc pipe step 1062 disposed at the edge of the end face of the first semi-circular arc pipe 1031; the second step 205 may include a second side plate step 2051 disposed at the edge of the end face of the second side plate 204 and a second semi-circular arc pipe step 2052 disposed at the edge of the end face of the second semi-circular arc pipe 2021. The outer portions of the first side plate step 1061 and the first semi-circular arc pipe step 1062 are higher than the inner portions; the inner portions of the second side plate step 2051 and the second semi-circular arc pipe step 2052 are higher than the outer portions; furthermore, the first side plate step 1061 and the second side plate step 2051 can mesh like teeth, and the first semi-circular arc pipe step 1062 and the second semi-circular arc pipe step 2052 can also mesh like teeth, achieving a tight connection between the first side plate 105 and the second side plate 204, as well as a tight connection between the first semi-circular arc pipe 1031 and the second semi-circular arc pipe 2021, thereby making the chassis 1 and the outer cover 2 tightly connected, and the complete dust outlet formed by the first dust outlet 103 and the second dust outlet 202 also tightly connected.

[0044] Optionally, the inner portions of the first side plate step 1061 and the first semi-circular arc pipe step 1062 can be higher than the outer portions, and the outer portions of the second side plate step 2051 and the second semi-circular arc pipe step 2052 can be higher than the inner portions; or the inner portions of the first side plate step 1061 and the second semi-circular arc pipe step 2052 can be higher than the outer portions, and the outer portions of the first semi-circular arc pipe step 1062 and the second side plate step 2051 can be higher than the inner portions. In short, the goal is to ensure that the first side plate step 1061 and the second side plate step 2051 can mesh with each other, and that the first semi-circular arc pipe step 1062 and the second semi-circular arc pipe step 2052 can mesh with each other.

[0045] The above is an introduction to the structure of this application. The following is a further explanation of the solution through a specific installation process: First, remove the grinding wheel cutting disc 6 from the angle grinder 5. After removal, refer to... Figure 9 As shown; then fix the base plate 1 to the outer periphery of the angle grinder wheel 501, and refer to the following after fixing. Figure 10 As shown; then reinstall the abrasive wheel cutting disc 6 onto the angle grinder disc 501, and refer to the following after installation. Figure 11 As shown; then, install the outer cover 2 onto the chassis 1, and refer to the following after installation. Figure 12 As shown. This completes the installation of the entire casing. Finally, install the dust duct 3 at the dust outlet and connect it to the vacuum cleaner 4 to form a complete angle grinder dust collection device. (Refer to...) Figure 1 As shown.

[0046] In summary, the embodiments of this application can fix the chassis 1 on the angle grinder disc, install the abrasive cutting disc, and then install the outer cover 2 on the chassis 1. This can block the flying debris generated when the abrasive cutting disc is working. After the chassis 1 and the outer cover 2 are installed, a dust outlet is formed. This dust outlet is connected to a vacuum cleaner 4 through a dust duct 3, so that the dust and debris generated during the cutting process can be removed in real time by the vacuum cleaner 4, thereby reducing dust emissions and achieving the effect of protecting the environment and personnel.

[0047] Furthermore, in this embodiment, the outer cover 2 is a transparent top plate 203 and a second side plate 204, which allows operators to easily observe the working status of the grinding wheel cutting disc without affecting the operator's field of vision, thus improving operational convenience and safety.

[0048] Furthermore, the embodiments of this application, based on the cooperation of the first step 106 and the second step 205, can enhance the tightness of the connection between the chassis 1 and the outer cover 2, and can ensure the sealing effect after installation.

[0049] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An angle grinder dust collection device, characterized in that, The device includes a chassis (1) and an outer cover (2). The chassis (1) is provided with a first connector (101) for connecting to the angle grinder wheel. The chassis (1) is surrounded by a second connector (102) for connecting to the outer cover (2). The chassis (1) is provided with a first dust outlet (103) on one side. The outer cover (2) is surrounded by a third connector (201) for connecting to the chassis (1). The outer cover (2) is provided with a second dust outlet (202) on one side. The first dust outlet (103) and the second dust outlet (202) form a complete dust outlet and are connected to a dust conduit (3). The dust conduit (3) is connected to a vacuum cleaner (4). The chassis (1) includes a base plate (104) and a first side plate (105). The first dust outlet (103) includes a first semi-circular arc pipe (1031). One side of the first semi-circular arc pipe (1031) is connected to and communicates with the first side plate (105). The other side of the first semi-circular arc pipe (1031) extends outward from the first side plate (105). The end face of the first semi-circular arc pipe (1031) is flush with the end face of the first side plate (105). The outer cover (2) includes a transparent top plate (203) and a second side plate (204). The second dust outlet (202) includes a second semi-circular arc pipe (2021). One side of the second semi-circular arc pipe (2021) is connected to and communicates with the second side plate (204). The other side of the second semi-circular arc pipe (2021) extends outward from the second side plate (204). The end face of the second semi-circular arc pipe (2021) is flush with the end face of the second side plate (204). The chassis (1) has a first step (106) on the edge facing the outer cover (2), and the outer cover (2) has a second step (205) on the edge facing the chassis (1). The first step (106) and the second step (205) are matched in shape and size. The first step (106) includes a first side plate step (1061) on the edge of the end face of the first side plate (105) and a first semi-circular arc pipe step (1062) on the edge of the end face of the first semi-circular arc pipe (1031). The second step (205) includes a second side plate step (2051) on the edge of the end face of the second side plate (204) and a second semi-circular arc pipe step (2052) on the edge of the end face of the second semi-circular arc pipe (2021).

2. The angle grinder dust collection device of claim 1, wherein, The first side plate (105) is arc-shaped and vertically disposed on the edge of the base plate (104); the first connector (101) is disposed in the middle of the base plate (104), the second connector (102) is disposed on the outside of the first side plate (105), and the first dust outlet (103) is disposed on the outside of the first side plate (105) and communicates with the inside.

3. The angle grinder dust collection device of claim 2, wherein, The first connector (101) includes a circular hoop (1011) and a connecting plate (1012). One part of the connecting plate (1012) is fixed to the circular hoop (1011), and the other part of the connecting plate (1012) is fixed to the base plate (104). The circular hoop (1011) has an opening and connecting pieces (1013) are provided on both sides of the opening. The connecting pieces (1013) are provided with screw holes for installing bolts.

4. The angle grinder dust collection device of claim 2, wherein, The second connector (102) includes a plurality of snap fasteners (1021) evenly distributed along the outer side of the first side plate (105).

5. The angle grinder dust collection device of claim 1, wherein, The second side plate (204) is arc-shaped and vertically disposed on the edge of the top plate (203); the third connector (201) is disposed on the outside of the second side plate (204), and the second dust outlet (202) is disposed on the outside of the second side plate (204) and communicates with the inside.

6. The angle grinder dust collection device of claim 5, wherein, The third connector (201) includes a plurality of card plates (2011) evenly distributed along the outer side of the second side plate (204), and the card plates (2011) are provided with card slots (2012).

7. The angle grinder dust collection device of claim 1, wherein, The second connector (102) includes several chassis fixing pieces (1022), and the third connector (201) includes several outer cover fixing pieces (2013). Both the chassis fixing pieces (1022) and the outer cover fixing pieces (2013) are provided with screw holes for fixing by bolts.

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