Angle grinder with built-in dust collection system

Abstract

The utility model discloses an angle grinder with a built-in dust collection system, which comprises an angle grinder body, a clamping ring is rotatably mounted on the outer surface of a dustproof ring of the angle grinder body, a U-shaped semi-ring is fixedly mounted on the outer surface of the clamping ring, the U-shaped semi-ring covers and sleeves the periphery of a polishing disc, a dust collection pipe is mounted on the lower surface of the U-shaped semi-ring in a communicated manner, and a dust collection system is mounted on the dust collection pipe. The other end of the dust suction pipe is installed on the outer surface of the dust suction system in a communicating mode, the dust suction system is fixedly installed in the buckle, and the buckle is fixedly installed at one end of the outer surface of the angle grinder body. Through the design of the dust collection system, ground scraps can be intensively adsorbed into the dust collection barrel for intensively collection, scattering and flying of the scraps in a working area are reduced, the cleanness of the working environment is kept, the difficulty and workload of cleaning work are reduced, and the working efficiency is also improved.

Description

Technical Field

[0001] This utility model relates to the field of power tool technology, specifically to an angle grinder with a built-in dust collection system. Background Technology

[0002] An angle grinder is an electric (or pneumatic) tool used for grinding weld beads, removing welding defects, and cleaning weld roots. Angle grinders have advantages such as high speed, fast defect removal, and producing aesthetically pleasing and clean welds.

[0003] For example, the national authorized patent announcement number CN210909411U discloses an angle grinder, including a connector and a machine body. The connector is fixedly installed at one end of the machine body. A water tank is fixedly installed on one side inside the machine body, and a dust collection box is fixedly installed on one side of the bottom of the machine body. A rotating motor is fixedly installed inside the connector, and a grinding wheel cover is fixedly installed on one side of the bottom of the connector. A connecting shaft is connected to the bottom of the rotating shaft of the rotating motor. The angle grinder described in this utility model has a dust collection box and a suction port to facilitate the adsorption of dust generated during grinding, preventing the worker from inhaling the small particles generated during grinding. The auxiliary handle and handle improve the worker's control of the angle grinder. The water tank and water spray nozzle facilitate the reduction of the temperature between the grinding wheel and the grinding object during deep grinding, and at the same time reduce the friction during grinding, thereby facilitating the adjustment of the grinding angle and depth.

[0004] However, the aforementioned angle grinder cannot collect the debris from grinding or cutting materials during the grinding or cutting process. This causes the debris to fly around in the air, increasing the dust concentration in the working environment, affecting the operator's vision, and increasing the difficulty of cleaning. Utility Model Content

[0005] The purpose of this invention is to provide an angle grinder with a built-in dust collection system to solve the problem mentioned in the background art that the grinding or cutting process cannot be completed by adsorbing and collecting the debris.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An angle grinder with a built-in dust collection system includes: an angle grinder body; a clamping ring rotatably mounted on the outer surface of the dustproof ring of the angle grinder body; a U-shaped semi-ring fixedly mounted on the outer surface of the clamping ring; the U-shaped semi-ring covering the periphery of the polishing disc; a dust collection pipe connected to the lower surface of the U-shaped semi-ring; the other end of the dust collection pipe connected to the outer surface of the dust collection system; the dust collection system fixedly mounted inside a ring buckle; and the ring buckle fixedly mounted on one end of the outer surface of the angle grinder body.

[0008] Preferably, a rotating ring is fixedly installed on the inner ring wall of the clamping ring, and the rotating ring is rotatably installed in the ring groove, which is embedded in the outer surface of the dustproof ring.

[0009] Preferably, the clamping ring can be tightened by the nut to reduce the ring opening and clamp it onto the outer surface of the dustproof ring, thereby locking the U-shaped semi-ring after rotation adjustment.

[0010] Preferably, the dust collection system includes a convex tube, a motor is fixedly installed inside the convex tube, an impeller is fixedly installed at one end of the output shaft of the motor, a filter screen is installed on the upper surface of the convex tube, and a threaded tooth is provided on the outer surface of the convex tube. A dust collection cylinder is threaded onto the outer surface of the threaded tooth, so that the dust collection cylinder covers the outer surface of the filter screen.

[0011] Preferably, the outer surface of the dust collection cylinder has a window, and a sealing ring is rotatably installed on the outer surface of the window of the dust collection cylinder, and the outer surface of the sealing ring is connected to the other end of the suction pipe.

[0012] Preferably, this allows the rotation of the impeller to exert an suction force on the suction pipe through the window.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. Through the design of the angle grinder body, clamping ring, U-shaped semi-ring, dust suction pipe, and dust suction system, the angle grinder body can collect the grinding debris. The operator can adjust the clamping ring according to the rotation direction of the polishing disc and the grinding position, causing the U-shaped semi-ring to rotate on the outer surface of the dustproof ring. This allows the U-shaped semi-ring to be adjusted to fit the desired position on the outer surface of the polishing disc. Then, tightening the nut will reduce the clamping ring's opening and secure it to the outer surface of the dustproof ring, thus achieving the desired adjustment of the U-shaped semi-ring. Once locked, the vacuum system can be activated. The suction pipe generates suction force within the U-shaped semi-ring, allowing the angle grinder body to drive the polishing disc to polish the object. During this process, the polished debris is thrown into the U-shaped semi-ring along the polishing disc and blocked. The debris inside the U-shaped semi-ring is then sucked into the vacuum system by the suction force for centralized collection. This reduces the scattering and flying of debris in the work area, maintains a clean working environment, reduces the difficulty and workload of cleaning, and also helps improve work efficiency.

[0015] 2. Through the design of the motor, impeller, filter, dust collection cylinder, window, and sealing ring, adjusting the angle of the U-shaped semi-ring activates the motor fixedly installed inside the convex tube, driving the impeller to rotate. This allows the rotating impeller to apply suction force to the dust collection cylinder through the filter inside the convex tube. The dust collection cylinder, in turn, applies suction force to the suction pipe through the sealing ring rotating on the outer surface of the outer window. This allows the suction pipe to draw in debris blocked by the U-shaped semi-ring, thus achieving directional suction of debris. This ensures that debris is accurately collected in the dust collection cylinder, preventing it from scattering and making the working environment cleaner and more orderly. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the angle grinder with the built-in dust collection system of this utility model;

[0017] Figure 2 This is a schematic diagram of the U-shaped semi-ring structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the vacuum tube of this utility model;

[0019] Figure 4 This is a schematic diagram of the dust collection system of this utility model.

[0020] In the diagram: 1. Angle grinder body; 101. Clamping ring; 102. U-shaped semi-ring; 103. Dust suction pipe; 104. Ring buckle; 105. Ring groove; 106. Rotary ring; 2. Dust suction system; 201. Convex tube; 202. Motor; 203. Impeller; 204. Threaded teeth; 205. Filter screen; 206. Dust collection cylinder; 207. Window; 208. Sealing ring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1-3As shown, this embodiment provides an angle grinder with a built-in dust collection system, including: an angle grinder body 1, a clamping ring 101 rotatably mounted on the outer surface of the dustproof ring of the angle grinder body 1, a U-shaped semi-ring 102 fixedly mounted on the outer surface of the clamping ring 101, the U-shaped semi-ring 102 covering the periphery of the polishing disc, a dust collection pipe 103 connected to the lower surface of the U-shaped semi-ring 102, the other end of the dust collection pipe 103 connected to the outer surface of the dust collection system 2, the dust collection system 2 fixedly mounted in a ring buckle 104, and the ring buckle 104 fixedly mounted on one end of the outer surface of the angle grinder body 1.

[0023] A rotating ring 106 is fixedly installed on the inner ring wall of the clamping ring 101. The rotating ring 106 is rotatably installed in the ring groove 105, which is embedded in the outer surface of the dustproof ring.

[0024] The clamping ring 101 can be tightened by the nut to reduce the ring opening and clamp it to the outer surface of the dustproof ring, thereby locking the U-shaped half ring 102 after rotation adjustment.

[0025] Through the design of the angle grinder body 1, clamping ring 101, U-shaped semi-ring 102, dust suction pipe 103, and dust suction system 2, when the angle grinder body 1 collects the grinding debris, the operator can adjust the clamping ring 101 according to the rotation direction of the polishing disc and the grinding position to drive the U-shaped semi-ring 102 to rotate on the outer surface of the dustproof ring. This allows the U-shaped semi-ring 102 to be adjusted to fit the desired position on the outer surface of the polishing disc. Then, tightening the nut will reduce the opening of the clamping ring 101 and secure it to the outer surface of the dustproof ring, thus achieving the desired adjustment of the U-shaped semi-ring 102. Once ring 102 is locked, the vacuum system 2 can be activated. Through the suction pipe 103, suction force is generated within the U-shaped semi-ring 102. During the process of the angle grinder body 1 driving the polishing disc to polish the object, the polished debris will be thrown into the U-shaped semi-ring 102 along the polishing disc and blocked. The debris inside the U-shaped semi-ring 102 will be sucked into the vacuum system 2 through the suction pipe 103 by the suction force for centralized collection. This reduces the scattering and flying of debris in the work area, keeps the work environment clean, reduces the difficulty and workload of cleaning, and also helps to improve work efficiency.

[0026] like Figure 4 As shown, the dust collection system 2 includes a convex tube 201, a motor 202 is fixedly installed inside the convex tube 201, an impeller 203 is fixedly installed at one end of the output shaft of the motor 202, a filter screen 205 is installed on the upper surface of the convex tube 201, and a threaded tooth 204 is provided on the outer surface of the convex tube 201. A dust collection cylinder 206 is threadedly installed on the outer surface of the threaded tooth 204, so that the dust collection cylinder 206 covers the outer surface of the filter screen 205.

[0027] A window 207 is provided on the outer surface of the dust collection cylinder 206. A sealing ring 208 is rotatably installed on the outer surface of the window 207 of the dust collection cylinder 206. The outer surface of the sealing ring 208 is connected to the other end of the suction pipe 103.

[0028] This allows the rotation of the impeller 203 to apply suction force to the suction pipe 103 through the window 207.

[0029] Through the design of motor 202, impeller 203, filter 205, dust collection cylinder 206, window 207, and sealing ring 208, the motor 202 fixedly installed inside the convex tube 201 can be started by adjusting the angle of the U-shaped semi-ring 102 to drive the impeller 203 to rotate. The rotating impeller 203 then applies an adsorption force to the dust collection cylinder 206 through the filter 205 inside the convex tube 201. The dust collection cylinder 206 then applies an adsorption force to the suction pipe 103 through the sealing ring 208 rotatably connected to the outer surface of the outer window 207. This allows the suction pipe 103 to draw in the debris blocked by the U-shaped semi-ring 102 into the dust collection cylinder 206, thus achieving directional adsorption of debris. This ensures that debris is accurately collected into the dust collection cylinder 206, preventing debris from scattering everywhere and making the working environment cleaner and more orderly.

[0030] Based on the above technical solution, the working steps of this solution are summarized as follows: When the angle grinder body 1 collects the polished debris, the operator can adjust the clamping ring 101 according to the rotation direction of the polishing disc and the polishing position to drive the U-shaped semi-ring 102 to rotate on the outer surface of the dustproof ring. This allows the U-shaped semi-ring 102 to be positioned as needed on the outer surface of the polishing disc. Then, tightening the nut will reduce the opening of the clamping ring 101 and secure it to the outer surface of the dustproof ring, thus locking the rotated U-shaped semi-ring 102. Next, the motor 202 can be started to drive the impeller 203 to rotate. The rotating impeller 203 will then apply suction force to the dust collection cylinder 206 through the filter screen 205 inside the convex tube 201, allowing the dust collection cylinder 206 to be drawn out through the outer window 207. The rotating sealing ring 208 applies an adsorption force to the suction pipe 103, thereby enabling the suction pipe 103 to generate an adsorption force within the U-shaped semi-ring 102. Subsequently, during the process of the angle grinder body 1 driving the polishing disc to grind the object, the grinding debris will be thrown into the U-shaped semi-ring 102 along the polishing disc and blocked. The debris in the U-shaped semi-ring 102 will be drawn into the dust collection cylinder 206 by the adsorption force through the suction pipe 103 for centralized collection. When it is necessary to clean the debris in the dust collection cylinder 206, the operator only needs to twist the dust collection cylinder 206 to unscrew it from the outer surface of the threaded teeth 204 of the convex tube 201, thus achieving the purpose of disassembling the dust collection cylinder 206. During the disassembly process, the dust collection cylinder 206 will rotate within the sealing ring 208 to avoid pulling on the suction pipe 103.

[0031] In summary: The system can collect the grinding debris into the dust collection cylinder 206, thereby reducing the scattering and flying of debris in the work area, maintaining a clean working environment, reducing the difficulty and workload of cleaning, and improving work efficiency.

[0032] All parts not described in this utility model are the same as or can be implemented using existing technology. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An angle grinder with a built-in dust collection system, characterized in that, include: An angle grinder body (1) has a clamping ring (101) rotatably mounted on the outer surface of the dustproof ring of the angle grinder body (1). A U-shaped semi-ring (102) is fixedly mounted on the outer surface of the clamping ring (101). The U-shaped semi-ring (102) covers the outer periphery of the polishing disc. A dust suction pipe (103) is connected to the lower surface of the U-shaped semi-ring (102). The other end of the dust suction pipe (103) is connected to the outer surface of the dust suction system (2). The dust suction system (2) is fixedly mounted in a buckle (104). The buckle (104) is fixedly mounted on one end of the outer surface of the angle grinder body (1).

2. The angle grinder with a built-in dust collection system according to claim 1, characterized in that: A rotating ring (106) is fixedly installed on the inner ring wall of the clamping ring (101). The rotating ring (106) is rotatably installed in the ring groove (105), which is embedded in the outer surface of the dustproof ring.

3. The angle grinder with a built-in dust collection system according to claim 2, characterized in that: The clamping ring (101) can be tightened by the nut to reduce the ring opening and clamp it to the outer surface of the dustproof ring, thereby locking the U-shaped half ring (102) after rotation adjustment.

4. The angle grinder with a built-in dust collection system according to claim 1, characterized in that: The dust collection system (2) includes a convex tube (201), a motor (202) is fixedly installed inside the convex tube (201), an impeller (203) is fixedly installed at one end of the output shaft of the motor (202), a filter screen (205) is installed on the upper surface of the convex tube (201), and a threaded tooth (204) is provided on the outer surface of the convex tube (201). A dust collection cylinder (206) is threaded on the outer surface of the threaded tooth (204), so that the dust collection cylinder (206) covers the outer surface of the filter screen (205).

5. An angle grinder with a built-in dust collection system according to claim 4, characterized in that: The dust collection cylinder (206) has a window (207) on its outer surface. A sealing ring (208) is rotatably installed on the outer surface of the window (207) of the dust collection cylinder (206). The outer surface of the sealing ring (208) is connected to the other end of the suction pipe (103).

6. The angle grinder with a built-in dust collection system according to claim 4, characterized in that: The rotation of the impeller (203) can apply an adsorption force to the suction pipe (103) through the window (207).

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