Polishing machine with protective mechanism

Abstract

The utility model discloses a polishing machine with a protective mechanism, including a driving end head, a handle and a polishing disc, one side of the driving end head is fixedly connected with the handle, a motor is arranged inside the driving end head, a rotating shaft at the bottom end of the motor is fixedly connected with the polishing disc, and a protective frame is also included, and a protective frame is arranged outside the polishing disc. In the polishing machine with a protective mechanism, water in a water tank enters into a sponge ring through the guidance of an outer tube body, so that the sponge ring becomes wet, and when polishing, the motor inside the driving end head drives the polishing disc to rotate to polish the surface of the workpiece, and at the same time, the wet sponge ring is attached to the surface of the workpiece, and after the sponge ring is attached to the workpiece, dust generated by the polishing disc during polishing is prevented from escaping from the external frame, and when the driving end head moves, the wet sponge ring wipes the surface of the workpiece and adsorbs the dust on the sponge ring, so as to prevent the dust from scattering and affecting the health of the operator.

Description

Technical Field

[0001] The utility model relates to the technical field of polishing machines, in particular to a polishing machine with a protection mechanism. Background Art

[0002] A polishing machine is an electric tool with a polishing disc on the head, which is used to polish the workpiece. Among them, handheld polishing machines are widely used because of their small size and easy portability.

[0003] It is found that during the use of traditional handheld polishers, fine dust is generated during the polishing process. When the dust is inhaled by nearby operators, it is easy to affect the health of the operators.

[0004] Existing handheld polishing machines usually use a protective cover structure to protect against dust, but there is still a gap between the protective cover and the workpiece, and dust will still escape from the gap and be inhaled by the operator. Utility Model Content

[0005] The utility model aims to provide a polishing machine with a protective mechanism to solve the problem in the background art that dust still escapes from the gap between the protective cover and the workpiece and is inhaled by the operator.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a polishing machine with a protective mechanism, comprising a driving end head, a handle and a polishing disc, one side of the driving end head is fixedly connected to the handle, a motor is arranged inside the driving end head, a rotating shaft at the bottom end of the motor is fixedly connected to the polishing disc, and also comprises a protective frame, and a protective frame is arranged on the outer side of the polishing disc;

[0007] The protective frame includes an external frame, a water tank, a water inlet pipe, a flow-limiting water pipe and a sponge ring. A water tank is provided on the outside of the external frame. A water inlet pipe is opened at the top of the water tank. A flow-limiting water pipe is inserted at the bottom of the water tank, and the external frame is penetrated by the flow-limiting water pipe. The bottom end of the flow-limiting water pipe is inserted in the sponge ring, and the sponge ring is fixedly connected to the external frame.

[0008] Preferably, eight flow-limiting water pipes are arranged inside the water tank, and the eight flow-limiting water pipes are distributed in an array in the water tank.

[0009] Preferably, the flow-limiting water pipe comprises an outer tube body, an inner flow channel, a side rod frame and a flow-limiting rod, the inner flow channel is opened inside the outer tube body, a side rod frame is fixedly connected to one side of the outer tube body, and the flow-limiting rod is provided inside the side rod frame.

[0010] Preferably, the side rod frame is threadedly connected to the flow limiting rod, and the outer tube body and the inner flow channel are penetrated by the flow limiting rod in sequence.

[0011] Preferably, the bottom of the sponge ring is at the same level as the bottom of the polishing disc.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] The utility model discloses a polishing machine with a protective mechanism, which transports water in a water tank to a sponge ring through an inner flow channel in an outer tube body, so that the wet sponge ring fits on the surface of a workpiece so that there is no gap between the sponge ring and the surface of the workpiece. When the polishing disc performs plane polishing on the workpiece, the generated dust is blocked by the wet sponge ring, and when the driving end head moves as a whole, the sponge ring moves synchronously to wipe the dust on the surface of the workpiece and adsorb the dust on the sponge ring. At the same time, the flow rate of the inner flow channel can be adjusted by a flow limiting rod to keep the sponge ring at a suitable humidity. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the polishing disc of the utility model;

[0016] Figure 3 It is a cross-sectional view of the protective frame of the utility model;

[0017] Figure 4 It is a cross-sectional view of the flow-limiting water pipe of the utility model.

[0018] In the figure: 1. driving end; 2. handle; 3. polishing disc; 4. protection frame; 41. external frame; 42. water tank; 43. water inlet pipe; 44. flow limiting water pipe; 441. outer pipe body; 442. inner flow channel; 443. side rod frame; 444. flow limiting rod; 45. sponge ring. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the implementation regulations described are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-4A polishing machine with a protective mechanism includes a driving end 1, a handle 2 and a polishing disc 3. The handle 2 is fixedly connected to one side of the driving end 1. A motor is arranged inside the driving end 1. The rotating shaft at the bottom of the motor is fixedly connected to the polishing disc 3. The motor is started to drive the polishing disc 3 to rotate for polishing. The polishing machine also includes a protective frame 4. The outer side of the polishing disc 3 is provided with a protective frame 4. The protective frame 4 includes an external frame body 41, a water tank 42, a water inlet pipe 43, a flow limiting water pipe 44 and a sponge ring 45. The external frame body 41 blocks part of the dust. The outer side of the external frame body 41 is provided with a water tank 42. The top of the water tank 42 is opened. A water inlet pipe 43 is provided, a limiting flow water pipe 44 is inserted at the bottom end of the water tank 42, and the external frame 41 is penetrated by the limiting flow water pipe 44, and the bottom end of the limiting flow water pipe 44 is inserted in the sponge ring 45, and the sponge ring 45 is attached to the surface of the workpiece to prevent dust from escaping from the external frame 41 to the outside, and the sponge ring 45 is fixedly connected to the external frame 41, and the water in the water tank 42 can enter the sponge ring 45 through the limiting flow water pipe 44 to keep the sponge ring 45 moist. When the driving end 1 moves, the moist sponge ring 45 wipes the surface of the workpiece and adsorbs the dust on the sponge ring 45.

[0021] Furthermore, eight flow-limiting water pipes 44 are provided inside the water tank 42, and the eight flow-limiting water pipes 44 are distributed in an array in the water tank 42, so that the flow-limiting water pipes 44 can evenly supply water to the sponge ring 45 from multiple angles, making the wet area of ​​the sponge ring 45 more uniform.

[0022] Furthermore, the flow-limiting water pipe 44 includes an outer tube body 441, an inner flow channel 442, a side rod frame 443 and a flow-limiting rod 444. The inner flow channel 442 is opened inside the outer tube body 441, and the side rod frame 443 is fixedly connected to one side of the outer tube body 441, and the flow-limiting rod 444 is arranged inside the side rod frame 443. A handle is arranged on the outer side of the flow-limiting rod 444, and the flow-limiting rod 444 can be rotated.

[0023] Furthermore, the side rod frame 443 and the flow limiting rod 444 are threadedly connected, and the outer tube body 441 and the inner flow channel 442 are sequentially penetrated by the flow limiting rod 444. Rotating the flow limiting rod 444 can make it move in the side rod frame 443. When the flow limiting rod 444 moves, it can control the flow size of the inner flow channel 442, control the amount of water flowing into the sponge ring 45, and then control the moisture level of the sponge ring 45.

[0024] Furthermore, the bottom of the sponge ring 45 is at the same level as the bottom of the polishing disc 3 , so that when the polishing disc 3 is polishing the surface of the workpiece, the sponge ring 45 can fit on the surface of the workpiece.

[0025] Working principle: The utility model is a polishing machine with a protective mechanism. Before polishing, the water tank 42 is filled with water, and the flow limiting rod 444 is rotated so that it no longer limits the flow of the inner flow channel 442. The water in the water tank 42 enters the sponge ring 45 through the guidance of the outer tube body 441, making the sponge ring 45 wet. When polishing, the motor inside the driving end head 1 drives the polishing disc 3 to rotate to polish the surface of the workpiece, and at the same time, the wet sponge ring 45 is attached to the surface of the workpiece. After the sponge ring 45 is attached to the workpiece, the dust generated by the polishing disc 3 during polishing is prevented from escaping from the external frame 41, and when the driving end head 1 moves, the wet sponge ring 45 wipes the surface of the workpiece and adsorbs the dust on the sponge ring 45 to prevent the dust from scattering and affecting the health of the operator.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A polishing machine with a protective mechanism, comprising a driving end (1), a handle (2) and a polishing disc (3), wherein one side of the driving end (1) is fixedly connected to the handle (2), a motor is provided inside the driving end (1), and a rotating shaft at the bottom end of the motor is fixedly connected to the polishing disc (3), characterized in that: It also comprises a protective frame (4), wherein the outer side of the polishing disc (3) is provided with the protective frame (4); The protection frame (4) comprises an external frame (41), a water tank (42), a water inlet pipe (43), a flow-limiting water pipe (44) and a sponge ring (45); a water tank (42) is provided on the outside of the external frame (41); a water inlet pipe (43) is provided at the top of the water tank (42); a flow-limiting water pipe (44) is inserted at the bottom of the water tank (42); the flow-limiting water pipe (44) penetrates the external frame (41); the bottom end of the flow-limiting water pipe (44) is inserted in the sponge ring (45); and the sponge ring (45) and the external frame (41) are fixedly connected.

2. A polishing machine with a protective mechanism according to claim 1, characterized in that: A total of eight flow-limiting water pipes (44) are arranged inside the water tank (42), and the eight flow-limiting water pipes (44) are distributed in an array in the water tank (42).

3. A polishing machine with a protective mechanism according to claim 1, characterized in that: The flow-limiting water pipe (44) comprises an outer tube body (441), an inner flow channel (442), a side rod frame (443) and a flow-limiting rod (444); the inner flow channel (442) is provided inside the outer tube body (441); the side rod frame (443) is fixedly connected to one side of the outer tube body (441); and the flow-limiting rod (444) is provided inside the side rod frame (443).

4. A polishing machine with a protection mechanism according to claim 3, characterized in that: The side rod frame (443) is threadedly connected to the flow-limiting rod (444), and the outer tube body (441) and the inner flow channel (442) are sequentially penetrated by the flow-limiting rod (444).

5. A polishing machine with a protection mechanism according to claim 1, characterized in that: The bottom of the sponge ring (45) is at the same level as the bottom of the polishing disc (3).

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