Grinding machine dust collection pipe fixing structure

Abstract

The utility model belongs to the field of quick-change connection of grinding machine dust suction pipe fixing structures, and particularly relates to a grinding machine dust suction pipe fixing structure, one end of a dust suction pipe is fixed between a first connecting body and a dust outlet channel, and the other end of the dust suction pipe is fixed between a second connecting body and a dust outlet pipe. The first connector is provided with a first internal thread part and a first opening; the first connector is in threaded connection with the dust outlet channel; the second connector is provided with a second internal thread part and a second opening; and the second connector is in threaded connection with the dust outlet pipe. The purpose of quickly locking the dust collection pipe is achieved mainly through a quick-change thread structure, and meanwhile the dust collection pipe is convenient to replace.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of quick-change connection of polishing machine dust suction pipe fixing structure, and particularly relates to a polishing machine dust suction pipe fixing structure. BACKGROUND

[0002] Before painting, painting walls or pasting wallpaper, the walls need to be polished and cleaned. At present, wall polishers more widely use wall polishers with smaller head thickness, which are not easy to scratch the wall when polishing the corner. A soft dust suction pipe is usually connected between the head of the polisher and the handle. The dust suction pipe is protruding and is easy to be damaged, and needs to be replaced frequently. At present, a clamp is mainly used to lock the dust suction pipe on the polisher. The clamp is easy to loosen and thus the dust suction pipe cannot be locked. If the clamp is locked too tightly, the dust suction passage is also easy to be damaged due to large pressure. SUMMARY

[0003] The purpose of the embodiment of the application is to provide a polishing machine dust suction pipe fixing structure, which can realize the purpose of quickly locking the dust suction pipe, and is also convenient for replacing the dust suction pipe.

[0004] The embodiment of the application provides a polishing machine dust suction pipe fixing structure, which comprises:

[0005] A shell, wherein the shell is provided with a dust outlet channel;

[0006] A first connecting body, wherein the first connecting body is connected with the dust outlet channel;

[0007] A dust outlet pipe, wherein the dust outlet pipe transports gas and dust;

[0008] A second connecting body, wherein the second connecting body is connected with the dust outlet pipe;

[0009] A dust suction pipe, wherein the dust suction pipe is located between the dust outlet channel and the dust outlet pipe;

[0010] One end of the dust suction pipe is fixed between the first connecting body and the dust outlet channel, and the other end of the dust suction pipe is fixed between the second connecting body and the dust outlet pipe.

[0011] The first connecting body is provided with a first inner threaded part and a first opening; the dust outlet channel is provided with a first outer threaded part matched with the first threaded part, the dust outlet channel is hollow, and the first connecting body is threadedly connected with the dust outlet channel; the second connecting body is provided with a second inner threaded part and a second opening; the dust outlet pipe is provided with a second outer threaded part matched with the second inner threaded part; and the second connecting body is threadedly connected with the dust outlet pipe. The first connecting body is further provided with a first inner inclined surface, the dust outlet channel is provided with a first outer inclined surface matched with the first inner inclined surface, the first inner inclined surface and the first outer inclined surface are parallel to each other; the second connecting body is provided with a second inner inclined surface, the dust outlet pipe is provided with a second outer inclined surface matched with the second inner inclined surface; and the second inner inclined surface and the second outer inclined surface are parallel to each other.

[0012] The first inner inclined surface and / or the first outer inclined surface are uniformly provided with a plurality of convex strips. The second inner inclined surface and / or the second outer inclined surface are uniformly provided with a plurality of convex strips. When the first connecting body is connected with the dust outlet channel, the distance between the first inner inclined surface and the first outer inclined surface is less than the wall thickness of the dust outlet pipe; and when the second connecting body is connected with the dust outlet pipe, the distance between the second inner inclined surface and the second outer inclined surface is less than the wall thickness of the dust outlet pipe.

[0013] One end of the dust outlet pipe is sleeved on the first outer inclined surface through the first opening, and the other end of the dust outlet pipe is sleeved on the second outer inclined surface through the second opening.

[0014] The technical scheme mainly realizes the purpose of quickly locking the dust outlet pipe through the quick-change structure, and facilitates replacement of the dust outlet pipe. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 is a schematic diagram of the overall structure of the polishing machine disclosed in the embodiments of the present application;

[0016] Fig. 2 is a schematic diagram of the cross-sectional explosion of the dust outlet pipe fixing structure of the polishing machine disclosed in the embodiments of the present application;

[0017] Fig. 3 is a schematic diagram of the connection of the dust outlet pipe fixing structure of the polishing machine disclosed in the embodiments of the present application;

[0018] BRIEF DESCRIPTION OF DRAWINGS

[0019] 1 - shell; 10 - dust outlet channel; 11 - first outer threaded part; 12 - first outer inclined surface; 2 - first connecting body; 21 - first inner threaded part; 22 - first inner inclined surface; 23 - first opening; 3 - dust outlet pipe; 4 - second connecting body; 41 - second inner threaded part; 42 - second opening; 43 - second inner inclined surface; 5 - dust outlet pipe; 51 - second outer inclined surface; 52 - second outer threaded part. DETAILED DESCRIPTION

[0020] EMBODIMENT

[0021] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art belong to the scope of protection of the present application.

[0022] The polishing machine dust suction pipe fixing structure provided by the embodiments of the present application will be described in detail below with reference to the drawings and specific embodiments and application scenarios.

[0023] Reference Figs. 1-3 The polishing machine dust suction pipe fixing structure provided by the embodiments of the present application can include:

[0024] The shell 1 is provided with a dust outlet channel 10; the dust outlet channel 10 can be a separately processed part or can be integrally formed with the shell 1. Its main function is to provide a channel on the shell 1 through which dust can be discharged. The dust outlet channel 10 is preferably a rotary body, especially a cylindrical type. The dust outlet channel 10 should be matched with the dust suction pipe 3.

[0025] The first connecting body 2 is connected with the dust outlet channel 10; preferably, the connection is a threaded connection. This connection method is convenient and fast. The first connecting body 2 and the dust outlet channel 10 can also be connected by a buckle. A corresponding buckle and a clamping groove are provided between the first connecting body 2 and the dust outlet channel 10. Although this method is convenient for connection, it is easy to loosen. The first connecting body 2 is preferably a rotary body, similar to a nut structure, which is convenient for screwing operation.

[0026] The dust outlet pipe 5 transports gas and dust. The dust outlet pipe 5 is a flexible pipe and a corrugated pipe. It has a low price and a long service life. The inner diameter of the dust outlet pipe 5 is greater than the minimum diameter of the first outer inclined surface 12 and the second outer inclined surface 51, so that the dust outlet pipe 5 can be sleeved on the first outer inclined surface 12 and the second outer inclined surface 51, and the first inner inclined surface 22 and the second inner inclined surface 42 can be pressed on the contact part of the dust outlet pipe 5 on the first outer inclined surface 12 and the second outer inclined surface 51. The dust suction pipe 3 is located between the dust outlet channel 10 and the dust outlet pipe 5. It serves to connect the dust outlet channel 10 and the dust outlet pipe 5. Since the head of the wall polishing machine and the handle need to be frequently changed in pitch angle, the dust suction pipe 3 is a necessary adapter. One end of the dust suction pipe 3 is fixed between the first connecting body 2 and the dust outlet channel 10, and the other end of the dust suction pipe 3 is fixed between the second connecting body 4 and the dust outlet pipe 5.

[0027] The second connecting body 4 is threadedly connected with the dust outlet pipe 5;

[0028] The first connecting body 2 is provided with a first inner threaded part 21 and a first opening 23; the dust outlet channel 10 is provided with a first outer threaded part 11 matched with the first inner threaded part 21, the dust outlet channel 10 is hollow, and the first connecting body 2 is threadedly connected with the dust outlet channel 10; the second connecting body 4 is provided with a second inner threaded part 41 and a second opening 43; the dust outlet pipe 5 is provided with a second outer threaded part 52 matched with the second inner threaded part 41; and the second connecting body 4 is threadedly connected with the dust outlet pipe 5.

[0029] The first connecting body 2 is further provided with a first inner inclined surface 22, the dust outlet channel 10 is provided with a first outer inclined surface 12 matched with the first inner inclined surface 22, and the first inner inclined surface 22 and the first outer inclined surface 12 are parallel to each other; the second connecting body 4 is provided with a second inner inclined surface 42, and the dust outlet pipe 5 is provided with a second outer inclined surface 51 matched with the second inner inclined surface 42; and the second inner inclined surface 42 and the second outer inclined surface 51 are parallel to each other.

[0030] Preferably, the first inner inclined surface 22 and / or the first outer inclined surface 12 are uniformly provided with a plurality of convex strips. The plurality of convex strips can better press the edge of the dust suction pipe 3 on the first outer inclined surface 12, preventing the dust suction pipe 3 from falling off the first outer inclined surface 12.

[0031] Preferably, the second inner inclined surface 42 and / or the second outer inclined surface 51 are uniformly provided with a plurality of convex strips. The plurality of convex strips can better press the edge of the dust suction pipe 3 on the second outer inclined surface 51, preventing the dust suction pipe 3 from falling off the second outer inclined surface 51. One end of the dust suction pipe 3 passes through the first opening 23 and is sleeved on the first outer inclined surface 12, and the other end of the dust suction pipe 3 passes through the second opening 43 and is sleeved on the second outer inclined surface 51.

[0032] When the first connecting body 2 is connected with the dust outlet channel 10, the distance between the first inner inclined surface 22 and the first outer inclined surface 12 is less than the wall thickness of the dust suction pipe 3, facilitating the pressing of the dust suction pipe 3; when the second connecting body 4 is connected with the dust outlet pipe 5, the distance between the second inner inclined surface 42 and the second outer inclined surface 51 is less than the wall thickness of the dust suction pipe 3, facilitating the pressing of the dust suction pipe 3. The connection is reliable.

[0033] The edge of the dust suction pipe 3 is pressed by the distance between the inclined surfaces, the connection is firm, and it is also convenient for replacement.

[0034] The embodiments of the application are described above in combination with the drawings, but the application is not limited to the specific embodiments described above, which are only illustrative but not restrictive, and those skilled in the art can make many forms under the inspiration of the application without departing from the scope of the application and the protection scope of the claims.

Claims

1. A grinding machine dust suction pipe fixing structure, characterized in that: The utility model relates to a dust collection device, comprising: a shell provided with a dust outlet channel; a first connecting body connected to the dust outlet channel; a dust outlet pipe for transporting gas and dust; a second connecting body connected to the dust outlet pipe; a dust suction pipe located between the dust outlet channel and the dust outlet pipe; one end of the dust suction pipe is fixed between the first connecting body and the dust outlet channel, and the other end of the dust suction pipe is fixed between the second connecting body and the dust outlet pipe.

2. A dust extraction tube fixing structure for a sander according to claim 1, characterized in that The first connecting body is provided with a first internal thread part and a first opening; the dust outlet channel is provided with a first external thread part matched with the first thread part, the dust outlet channel is hollow, and the first connecting body is threadedly connected to the dust outlet channel; the second connecting body is provided with a second internal thread part and a second opening; the dust outlet pipe is provided with a second external thread part matched with the second internal thread part; and the second connecting body is threadedly connected to the dust outlet pipe.

3. A dust extraction tube securing structure for a sander according to claim 2, wherein The first connecting body is further provided with a first internal inclined surface, the dust outlet channel is provided with a first external inclined surface matched with the first internal inclined surface, the first internal inclined surface and the first external inclined surface are parallel to each other; the second connecting body is provided with a second internal inclined surface, the dust outlet pipe is provided with a second external inclined surface matched with the second internal inclined surface; and the second internal inclined surface and the second external inclined surface are parallel to each other.

4. A dust extraction tube securing structure for a sander according to claim 3, wherein The first internal inclined surface and / or the first external inclined surface are uniformly provided with a plurality of convex strips.

5. The sander dust extraction hose securing structure of claim 3, wherein The second internal inclined surface and / or the second external inclined surface are uniformly provided with a plurality of convex strips.

6. A grinding machine dust suction pipe fixing structure according to claim 3, characterized in that: When the first connecting body is connected to the dust outlet channel, the distance between the first internal inclined surface and the first external inclined surface is smaller than the wall thickness of the dust suction pipe; and when the second connecting body is connected to the dust outlet pipe, the distance between the second internal inclined surface and the second external inclined surface is smaller than the wall thickness of the dust suction pipe.

7. The sander dust extraction hose securing structure of claim 1, wherein One end of the dust suction pipe is sleeved on the first external inclined surface through the first opening, and the other end of the dust suction pipe is sleeved on the second external inclined surface through the second opening.

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