Dust collection sealing structure of sanding machine

Abstract

The dust collection sealing structure comprises a sander main body and a working head detachably installed on the sander main body, a dust collection cavity is formed between the sander main body and the working head after the sander main body and the working head are installed, and a dust collection hole communicated with the dust collection cavity is formed in the working head. A dust outlet hole for communicating the dust collection cavity with the outside is formed in the sander main body, and an annular sealing ring which is tightly attached to the working head and the sander main body at the same time is arranged between the sander main body and the working head. Compared with the prior art, the dust collection device has the advantages that the sealing ring can block the gap between the working head and the dust collection cavity, dust is prevented from leaking from the gap between the working head and the dust collection cavity, the comfort of the working environment is improved, and the problem of dust leakage in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of sanding machines, in particular to a dust collecting and sealing structure of a sanding machine. Background Art

[0002] Sanding machines are mainly used as electric tools for fine grinding and sanding of wooden structures in construction, housing decoration, furniture manufacturing, and wall decoration. Sanding machines will generate a lot of dust during operation, which will cause immeasurable harm to the health of the operator. To solve this problem, existing sanding machines are usually equipped with vacuum cleaners.

[0003] For example, the Chinese utility model patent "Brushless high-pressure flat sander for easy adjustment and grinding" with patent publication number CN216657355U includes a sander main body and a square or triangular working head installed on the sander main body. The sander main body is externally connected to a vacuum cleaner, a dust suction chamber is provided on the sander main body, a hinged dust outlet duct is provided on the sander main body, both ends of the dust outlet duct can be adjusted up and down, the dust outlet duct is connected to the dust suction chamber, and a rotary joint is rotatably installed on the dust outlet duct, and the vacuum cleaner is provided with a duct connected to the rotary joint.

[0004] When the above-mentioned sanding machine is in use, due to the gap between the working head and the dust suction chamber, the dust in the dust suction chamber will leak out through the gap, and the dust suction effect is not good. Utility Model Content

[0005] The utility model aims to solve the problem that there is a gap between the working head and the dust suction chamber of the sanding machine, and dust in the dust suction chamber leaks out through the gap. The technical problem to be solved by the utility model is to provide a dust suction sealing structure for the sanding machine.

[0006] The technical solution adopted by the utility model to solve the above technical problems is: a dust suction sealing structure of a sanding machine, comprising a sanding machine body and a working head detachably mounted on the sanding machine body, a dust suction chamber is formed between the sanding machine body and the working head after installation, and a dust suction hole connected to the dust suction chamber is provided on the working head, a dust outlet hole connecting the dust suction chamber with the outside is provided on the sanding machine body, and an annular sealing ring is provided between the sanding machine body and the working head, which is tightly fitted with the working head and the sanding machine body at the same time.

[0007] A further preferred solution of the utility model is that the sealing ring comprises an inner ring and an outer ring, the inner ring and the outer ring have a gap, the gap between the inner ring and the outer ring forms a sealing groove, and the shell of the sanding machine body can be inserted into the sealing groove and fit tightly with the sealing groove.

[0008] A further preferred solution of the utility model is that the housing and the sealing groove are interference fit.

[0009] A further preferred solution of the utility model is that the bottom of the sealing ring has a groove opening downward along the circumference of the sealing ring, and two sides of the groove form a downward convex inner convex ring and an outer convex ring.

[0010] A further preferred solution of the utility model is that when the sealing ring is installed on the working head, the inner convex ring and the outer convex ring contact the working head first, and when the groove fits the working head tightly, the outer convex ring and the inner convex ring are squeezed and extended to the surrounding to contact with multiple areas of the working head.

[0011] A further preferred solution of the utility model is that the working head comprises an aluminum plate and a frosting plate, and the aluminum plate and the frosting plate are both provided with a plurality of dust suction holes, and the dust suction holes on the aluminum plate and the frosting plate correspond to each other one by one during operation.

[0012] A further preferred solution of the utility model is that the forward projections of the plurality of dust suction holes are all located inside the sealing ring.

[0013] A further preferred solution of the utility model is that a dust suction pipe cooperating with a dust cleaner is connected to the dust suction hole.

[0014] Compared with the prior art, the utility model has the following advantages: by providing an annular sealing ring between the sanding machine body and the working head, which is tightly fitted with the working head and the sanding machine body, the gap between the working head and the dust suction chamber can be sealed to prevent dust from leaking from the gap between the working head and the dust suction chamber, thereby improving the comfort of the working environment and solving the problem of dust leakage in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be described in further detail below in conjunction with the accompanying drawings and preferred embodiments. However, those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining the preferred embodiments and should not be regarded as limiting the scope of the present invention. Furthermore, unless otherwise specified, the drawings only conceptually represent the composition or structure of the described objects and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0016] Figure 1 This is a front view of a preferred embodiment of the utility model;

[0017] Figure 2 It is a cross-sectional view of a preferred embodiment of the utility model;

[0018] Figure 3 This is the preferred embodiment of the utility model Figure 2 A partial enlarged view of the middle A;

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the sealing ring of the preferred embodiment of the utility model;

[0020] Figure 5This is a disassembly diagram of a preferred embodiment of the utility model.

[0021] In the figure: 1. Sanding machine body; 11. Shell; 12. Dust outlet hole; 2. Working head; 21. Aluminum disc; 22. Sanding disc; 23. Dust suction hole; 3. Dust suction chamber; 4. Sealing ring; 41. Inner ring; 42. Outer ring; 43. Sealing groove; 44. Groove; 45. Inner convex ring; 46. Outer convex ring; 5. Dust suction duct. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are only descriptive and exemplary and should not be construed as limiting the protection scope of the present invention.

[0023] It should be noted that like reference numerals denote similar items in the following drawings, and thus, once an item is defined in one drawing, it may not be further defined or explained in subsequent drawings.

[0024] This embodiment mainly describes the dust collection and sealing structure of the sanding machine, as follows:

[0025] like Figures 1 to 5 As shown, the dust collection sealing structure of the sanding machine comprises a sanding machine body 1 and a working head 2 detachably mounted on the sanding machine body 1, the sanding machine body 1 is used to drive the working head 2 to work, the working head 2 is used to polish and grind the plane, the sanding machine body 1 and the working head 2 are installed to form a dust collection chamber 3 between the two, and the working head 2 is provided with a dust collection hole 23 connected with the dust collection chamber 3, the sanding machine body 1 is provided with a dust outlet hole 12 connecting the dust collection chamber 3 with the outside, and the dust collection hole 23 is connected with a suction port matched with a vacuum cleaner. Dust duct 5. When the sanding machine is sanding, under the action of the vacuum cleaner, the dust enters the dust suction chamber 3 from the dust suction hole 23 and is discharged through the dust outlet hole 12 and the dust suction duct 5. An annular sealing ring 4 is provided between the sanding machine body 1 and the working head 2, which is tightly fitted with the working head 2 and the sanding machine body 1. The design of the sealing ring 4 can seal the gap between the working head 2 and the dust suction chamber 3 to prevent dust from leaking from the gap between the working head 2 and the dust suction chamber 3, thereby improving the comfort of the working environment and solving the problem of dust leakage in the prior art.

[0026] Preferably, the sealing ring 4 has an inner ring 41 and an outer ring 42, and there is a gap between the inner ring 41 and the outer ring 42, and the gap between the inner ring 41 and the outer ring 42 forms a sealing groove 43. The shell 11 of the sanding machine body 1 can be inserted into the sealing groove 43 and fit tightly with the sealing groove 43. After the shell 11 is inserted into the sealing groove 43, the shell 11 and the sealing groove 43 are interference fit, and the shell 11 presses the sealing groove 43 and the inner ring 41 and the outer ring 42, thereby improving the sealing effect; the bottom of the sealing ring 4 has a groove 44 opening downward along the circumference of the sealing ring 4, and the two sides of the groove 44 form a downwardly convex inner convex ring 45 and an outer convex ring 46. When the sealing ring 4 is installed with the working head 2, the sealing ring 4 is squeezed, and the inner convex ring 45 and the outer convex ring 46 of the sealing ring 4 contact the working head 2 first. When the groove 44 is tightly fitted with the working head 2, the outer convex ring 46 and the inner convex ring 45 are squeezed to extend around and contact with multiple areas of the working head 2, thereby improving the sealing performance of the bottom of the sealing ring 4 and the working head 2.

[0027] Preferably, the working head 2 includes an aluminum plate 21 and a sanding plate 22, and the sanding plate 22 is detachably connected to the aluminum plate 21. The aluminum plate 21 and the sanding plate 22 are both provided with a plurality of dust suction holes 23. When working, the dust suction holes 23 on the aluminum plate 21 and the sanding plate 22 correspond one to one, and the forward projections of the plurality of dust suction holes 23 on the aluminum plate 21 and the sanding plate 22 are all located in the sealing ring 4, and each dust suction hole 23 is connected to the dust suction chamber 3.

[0028] The dust collection and sealing structure of the above-mentioned sanding machine is applicable to both square sanding machines and circular sanding machines. When used for square sanding machines, the connecting ends of the sanding machine body 1 and the working head 2, the working head 2 are both square, and the sealing ring 4 is also square; when used for circular sanding machines, the connecting ends of the sanding machine body 1 and the working head 2, the working head 2 are both square, and the sealing ring 4 is also square.

[0029] In the description of the present utility model, it should be noted that the terms "upper", "lower", "front", "back", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.

[0030] The dust collection and sealing structure of the sanding machine provided by the utility model is introduced in detail above. The principle and implementation mode of the utility model are explained in this article by using specific examples. The description of the above embodiments is only used to help understand the utility model and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified in a number of ways, and these improvements and modifications also fall within the protection scope of the claims of the utility model.

Claims

1. A dust collection sealing structure of a sanding machine, comprising a sanding machine body and a working head detachably mounted on the sanding machine body, wherein a dust collection chamber is formed between the sanding machine body and the working head after being mounted, and a dust collection hole connected to the dust collection chamber is provided on the working head, and a dust outlet hole connecting the dust collection chamber with the outside is provided on the sanding machine body, characterized in that: An annular sealing ring is arranged between the sanding machine body and the working head and is tightly fitted with the working head and the sanding machine body.

2. The dust collecting and sealing structure of the sanding machine according to claim 1, characterized in that: The sealing ring comprises an inner ring and an outer ring, wherein a gap is formed between the inner ring and the outer ring, and the gap between the inner ring and the outer ring forms a sealing groove, and the shell of the sanding machine body can be inserted into the sealing groove and fit tightly with the sealing groove.

3. The dust collecting and sealing structure of the sanding machine according to claim 2, characterized in that: The housing is interference fit with the sealing groove.

4. The dust collecting and sealing structure of the sanding machine according to claim 1, characterized in that: The bottom of the sealing ring is provided with a groove opening downward along the circumference of the sealing ring, and two sides of the groove form a downward convex inner convex ring and an outer convex ring.

5. The dust collecting and sealing structure of the sanding machine according to claim 1, characterized in that: When the sealing ring is installed on the working head, the inner convex ring and the outer convex ring contact the working head first, and when the groove fits the working head tightly, the outer convex ring and the inner convex ring are squeezed and extended to the surrounding to contact with multiple areas of the working head.

6. The dust collecting and sealing structure of the sanding machine according to claim 1, characterized in that: The working head comprises an aluminum plate and a frosting plate, and the aluminum plate and the frosting plate are both provided with a plurality of dust suction holes. When working, the dust suction holes on the aluminum plate and the frosting plate correspond to each other one by one.

7. The dust collecting and sealing structure of the sanding machine according to claim 6, characterized in that: The forward projections of the plurality of dust suction holes are all located inside the sealing ring.

8. The dust collecting and sealing structure of the sanding machine according to claim 1, characterized in that: The dust suction hole is connected with a dust suction pipe matched with a dust cleaner.

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