Dust raising prevention sander dust collection device

Abstract

The utility model is suitable for the technical field of sanders, and provides a dust raising prevention sander dust collection device which comprises a shell. A motor is installed in the shell, a grinding wheel is installed outside an output shaft of the motor, and a fixing disc is installed on the outer side wall of the shell. According to the dust-raising-preventing sanding machine dust collecting device, the second sleeve is arranged in a telescopic mode and matched with the first sleeve to isolate a grinding wheel from the outside, dust generated by polishing is reserved on the inner side, then the dust is sucked into the dust collecting groove through the connecting pipe by means of suction force generated by the draught fan, and the dust collecting effect is improved. Through the arrangement, dust generated by polishing can be effectively prevented from flying into air, the dust can be collected, through the arrangement of a scraping plate, a rotating handle can be held by a hand to rotate a fan in a reciprocating mode, the fan can drive a connecting rod to enable the scraping plate to scrape dust attached to the lower surface of a filter screen, through the arrangement, the filter screen can be conveniently cleaned, and the dust removal efficiency is improved. Therefore, the filter screen is prevented from being blocked due to long-time use.

Description

Technical Field

[0001] This utility model belongs to the field of sanding machine technology, and in particular relates to a dust collection device for sanding machines that prevents dust generation. Background Technology

[0002] A sander is a mechanical device used for surface treatment. It is mainly used to grind, polish, or smooth the surface of materials with abrasives, making them smoother, more uniform, or meeting specific process requirements. Sanders can remove defects such as burrs, scale, and oil stains from the surface of materials, reduce surface roughness, and improve smoothness.

[0003] Currently, sanders lack dust removal mechanisms. When polishing and grinding material surfaces with a sander, a lot of dust is generated. As the sander rotates at high speed, the dust is dispersed into the air and enters the respiratory tract of workers, posing a significant health hazard. Utility Model Content

[0004] This utility model provides a dust collection device for sanding machines to prevent dust from scattering during polishing and grinding.

[0005] This utility model is implemented as follows: a dust collection device for a sander that prevents dust generation includes a housing; a motor is installed inside the housing, and a grinding wheel is installed outside the output shaft of the motor; a fixed plate is installed on the outer wall of the housing, and a first sleeve is installed on the outer side of the fixed plate; a sliding groove is formed on the side wall of the first sleeve, and two sets of limiting blocks are slidably embedded in the sliding groove; a spring is installed at the top of the sliding groove of the first sleeve, and the movable end of the spring is connected to the limiting block; a second sleeve is connected to the bottom of the two sets of limiting blocks; a dust collection groove is formed inside the housing, and an opening is provided at the top of the dust collection groove with a fan installed above it; a filter screen is installed at the opening of the dust collection groove; connecting pipes are connected to both sides of the dust collection groove, and the connecting pipes pass through the fixed plate and extend below it, with the bottom of the connecting pipes located on the side of the grinding wheel; a handle is installed on the back side of the housing.

[0006] Preferably, a bracket is installed on the top of the housing, a slider is installed on the outer side wall of the fan, the bracket is annular and the inner side wall has an annular groove adapted to the slider, the fan is rotatably mounted on the inner side of the bracket, a connecting rod is installed at the bottom of the fan frame, the filter screen is circular, the connecting rod passes through the center of the filter screen and extends below it to connect to a scraper, the scraper is in contact with the lower surface of the filter screen, and a throttle is installed on the top of the fan frame.

[0007] Preferably, there is friction between the bracket and the slider, and the fan is powered by a spring-shaped wire.

[0008] Preferably, a dust-collecting plate is installed at the bottom of the connecting pipe, and the dust-collecting plate is arc-shaped with its top communicating with the connecting pipe.

[0009] Preferably, a collection box is placed inside the dust collection trough, and an opening adapted to the width of the collection box is opened on the front side of the outer shell. The collection box is slidably inserted into the dust collection trough of the outer shell, and there is friction between the collection box and the inner wall of the dust collection trough.

[0010] Preferably, a rubber ring is fitted onto the bottom of the second sleeve.

[0011] Compared with the prior art, the embodiments of this application have the following main advantages:

[0012] This device isolates the grinding wheel from the outside by installing a telescopic second sleeve that works in conjunction with the first sleeve. This keeps the grinding dust inside, and the suction generated by the fan draws the dust into the dust collection tank through the connecting pipe. This design effectively prevents the grinding dust from scattering into the air and collects the dust. A scraper is also included; the fan can be rotated back and forth by hand, which drives the connecting rod to scrape off the dust adhering to the lower surface of the filter screen. This facilitates cleaning of the filter screen and prevents it from becoming clogged after prolonged use. Attached Figure Description

[0013] Figure 1 This is a front view cross-sectional structural diagram of the present invention;

[0014] Figure 2 This is the utility model Figure 1 Enlarged schematic diagram of the structure at point A in the middle;

[0015] Figure 3 This is a front view structural diagram of the present invention;

[0016] Figure 4 This is a schematic diagram of the rear view structure of this utility model;

[0017] Figure 5 This is a top view schematic diagram of the dust collection plate structure of this utility model;

[0018] In the diagram: 1. Outer shell; 2. Motor; 3. Grinding wheel; 4. Fixed disc; 5. First sleeve; 6. Limiting block; 7. Spring; 8. Second sleeve; 9. Dust collection trough; 10. Fan; 11. Filter screen; 12. Connecting pipe; 13. Bracket; 14. Slider; 15. Connecting rod; 16. Scraper; 17. Rotary handle; 18. Suction plate; 19. Collection box; 20. Handle; 21. Rubber ring. Detailed Implementation

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0020] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0021] This utility model embodiment provides a dust collection device for sanders to prevent dust generation, such as... Figure 1-5As shown, the device includes a housing 1, inside which a motor 2 is installed. A grinding wheel 3 is mounted on the outside of the output shaft of the motor 2. A fixed plate 4 is mounted on the outer wall of the housing 1, and a first sleeve 5 is mounted on the outer side of the fixed plate 4. A sliding groove is formed on the side wall of the first sleeve 5, and two sets of limiting blocks 6 are slidably embedded in the groove. A spring 7 is mounted on the top of the sliding groove of the first sleeve 5, and the movable end of the spring 7 is connected to the limiting block 6. A second sleeve 8 is connected to the bottom of the two sets of limiting blocks 6. A dust collection tank 9 is formed inside the housing 1, with an opening at the top and a fan 10 mounted above it. A filter screen 11 is installed at the opening of the dust collection tank 9. Connecting pipes 12 are connected to both sides of the dust collection tank 9, passing through the fixed plate 4 and extending below it. The bottom of the connecting pipe 12 is located on the side of the grinding wheel 3. A handle 20 is mounted on the back of the housing 1. When using the device, the handle 20 can be held to start the motor 2, which drives the grinding wheel 3 to rotate for polishing. When the material is approached, the second sleeve 8 first contacts the material surface. As the hand presses down, the second sleeve 8 slides into the inside of the first sleeve 5 and adheres tightly to the material surface under the elastic force of the spring 7. At this time, the first sleeve 5 and the second sleeve 8 isolate the inside and outside, and the dust generated by grinding will be retained inside the first sleeve 5 and the second sleeve 8. At this time, the fan 10 is started, and the fan 10 creates a negative pressure inside the dust collection tank 9, thereby generating suction at the opening of the connecting pipe 12 to draw the dust into the dust collection tank 9. The filter screen 11 can isolate the dust collected in the dust collection tank 9, thus realizing the dust collection treatment of the sander. This device isolates the grinding wheel 3 from the outside by setting a telescopic second sleeve 8 that cooperates with the first sleeve 5, so that the dust generated by grinding is retained inside. Then, the suction generated by the fan 10 draws the dust into the dust collection tank 9 through the connecting pipe 12. This setting can effectively prevent the dust generated by grinding from flying into the air and can collect the dust.

[0022] A bracket 13 is installed on the top of the outer casing 1, and a slider 14 is installed on the outer side wall of the fan 10. The bracket 13 is annular and has an annular groove on its inner side wall that matches the slider 14. The fan 10 is rotatably mounted on the inner side of the bracket 13. A connecting rod 15 is installed at the bottom of the frame of the fan 10. The filter screen 11 is circular. The connecting rod 15 passes through the center of the filter screen 11 and extends to its lower part to connect to a scraper 16. The scraper 16 is in contact with the lower surface of the filter screen 11. A handle 17 is installed on the top of the frame of the fan 10. With the scraper 16, when the filter screen 11 filters for a long time, a lot of dust will adhere to its lower surface. At this time, the handle 17 can be held to rotate the fan 10 back and forth. The fan 10 will drive the connecting rod 15 to make the scraper 16 scrape off the dust adhering to the lower surface of the filter screen 11. This setting makes it easy to clean the filter screen 11, thereby avoiding the filter screen 11 from clogging after long-term use.

[0023] There is friction between the bracket 13 and the slider 14. The fan 10 is powered by a spring-shaped wire. The friction between the bracket 13 and the slider 14 allows the fan 10 to be placed stably without human rotation, thus ensuring normal dust collection.

[0024] A dust suction plate 18 is installed at the bottom of the connecting pipe 12. The dust suction plate 18 is arc-shaped and its top is connected to the connecting pipe 12. By providing the dust suction plate 18, the dust suction port of the connecting pipe 12 can be enlarged, thereby increasing the dust suction range and making the dust collection more thorough.

[0025] The dust collection trough 9 contains a collection box 19. The front side of the outer shell 1 has an opening that matches the width of the collection box 19. The collection box 19 is slidably inserted into the dust collection trough 9 of the outer shell 1. There is friction between the collection box 19 and the inner wall of the dust collection trough 9. By providing the collection box 19, when the dust in the dust collection trough 9 is full, the collection box 19 can be pulled out from the side of the outer shell 1 to empty the dust.

[0026] The bottom of the second sleeve 8 is fitted with a rubber ring 21. The rubber ring 21 has the ability to deform, so when encountering materials with uneven surfaces, the second sleeve 8 can be placed vertically, so that the grinding wheel 3 can be ground and polished normally in a horizontal manner.

[0027] It should be noted that, for the sake of simplicity, the foregoing embodiments are all described as a series of actions. However, those skilled in the art should understand that the present invention is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to the present invention. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0028] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative. For instance, the division of units described above may be implemented in other ways in practice. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; indirect coupling or communication connections between devices or units may be telecommunications or other forms.

[0029] The units described above as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs. The above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit the scope of protection of the utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the situation without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A dust collection device for a sander to prevent dust generation, characterized in that, The device includes a housing (1): a motor (2) is installed inside the housing (1), a grinding wheel (3) is installed outside the output shaft of the motor (2), a fixed plate (4) is installed on the outer side wall of the housing (1), a first sleeve (5) is installed on the outer side of the fixed plate (4), a groove is opened on the side wall of the first sleeve (5), and two sets of limiting blocks (6) are slidably embedded in the groove. A spring (7) is installed at the top of the groove of the first sleeve (5), and the movable end of the spring (7) is connected to the limiting block (6). The two sets of limiting blocks... (6) is connected to a second sleeve (8) at the bottom. The inside of the outer shell (1) is provided with a dust collection trough (9). The top of the dust collection trough (9) is provided with an opening and a fan (10) is installed above it. A filter screen (11) is installed at the opening of the dust collection trough (9). Connecting pipes (12) are connected to both the left and right sides of the dust collection trough (9). The connecting pipes (12) pass through the fixed plate (4) and extend to its bottom. The bottom of the connecting pipes (12) is located on the side of the grinding wheel (3). A handle (20) is installed on the back side of the outer shell (1).

2. The dust collection device for a sander as described in claim 1, characterized in that, A bracket (13) is installed on the top of the outer casing (1), a slider (14) is installed on the outer side wall of the fan (10), the bracket (13) is set as annular and the inner side wall is provided with an annular groove that matches the slider (14), the fan (10) is rotatably installed on the inner side of the bracket (13), a connecting rod (15) is installed at the bottom of the frame of the fan (10), the filter screen (11) is set as circular, the connecting rod (15) passes through the center of the filter screen (11) and extends to the bottom of it to connect to a scraper (16), the scraper (16) is in contact with the lower surface of the filter screen (11), and a throttle (17) is installed on the top of the frame of the fan (10).

3. The dust collection device for a sander as described in claim 2, characterized in that, There is friction between the bracket (13) and the slider (14), and the fan (10) is powered by a spring-shaped wire.

4. The dust collection device for a sander as described in claim 1, characterized in that, A dust-collecting plate (18) is installed at the bottom of the connecting pipe (12). The dust-collecting plate (18) is arc-shaped and its top is connected to the connecting pipe (12).

5. A dust collection device for a sander as described in claim 1, characterized in that, The dust collection trough (9) contains a collection box (19). The front side of the outer shell (1) has an opening that matches the width of the collection box (19). The collection box (19) is slidably inserted into the dust collection trough (9) of the outer shell (1). There is friction between the collection box (19) and the inner wall of the dust collection trough (9).

6. The dust collection device for a sander as described in claim 1, characterized in that, A rubber ring (21) is fitted at the bottom of the second sleeve (8).

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