A dust collection guard for a circular saw machine

Abstract

The utility model relates to a dust collecting protective cover of circular saw machine. The technical scheme is that: including circular saw machine assembly, circular saw machine assembly includes base, four corners of base are installed with universal wheel of brake respectively, the left end edge middle of base upper surface is symmetrically welded and fixed ear before and after, before and after fixed ear rotates and inserts and installs pin, the pin of front side fixed ear front side is equipped with torsional spring, the pin of rear side of front side fixed ear is fixedly equipped with connecting arm, the upper end of connecting arm installs circular saw machine body, the position of middle part of base is opposite saw blade and is provided with rectangular through slot, the pin of rear side of connecting arm is movably equipped with dust collecting cover, dust collecting cover includes horizontal fairing, the one end of fairing is equipped with dust inlet on, the left end of fairing is fixedly connected with circular type slow down cover, the bottom collecting component is arranged on the bottom surface of base opposite rectangular through slot. The utility model has the advantages of: the chippings of different directions are effectively collected, and the dust collecting cover is convenient to store.

Description

Technical Field

[0001] This utility model belongs to the technical field of circular saw machines and relates to a dust collection and protective cover for circular saw machines. Background Technology

[0002] Circular saws can be categorized by the products they process into metal circular saws and woodworking circular saws. They can also be classified by feeding method into vertical, horizontal, and scissor-type saws. Furthermore, they can be categorized by control method into manual, semi-automatic, and fully automatic saws. Specialized material racks are available to meet specific needs. For metal circular saws, during operation, the area where the saw cuts the workpiece easily scatters sparking debris. This debris gradually changes from downward to horizontal during the cutting process, depending on the angle between the circular saw and the horizontal. Moreover, this sparking debris can easily fly into the surrounding environment, causing environmental pollution and affecting pedestrian safety.

[0003] According to the inspection institute, Chinese patent CN217965069U discloses a circular saw cutting waste collection device, including a base. A cutting groove is opened in the upper center of the base, and a cavity is opened inside the base. A collection box is inserted into the cavity, and a limiting plate is connected to the upper sides of the inner wall of the collection box. A filter screen is placed on the limiting plate. A pin is inserted into the right side of the base and the collection box. A connector is connected to the top left side of the base. Dustproof rails are connected to the top left, right sides and the rear of the base. A rotating shaft is rotatably connected to the inner side of the connector, and a support plate is connected to the rotating shaft. Torsion springs are sleeved on both sides of the rotating shaft to facilitate the initial limiting of powder through the dustproof rails. At the same time, the cutting groove and the collection box can collect waste, and the waste can be classified and collected by water and the filter screen.

[0004] However, the aforementioned devices can only collect downward-splashing debris during use. As the cutting deepens, the debris gradually splashes horizontally, making effective collection impossible. Therefore, their dust collection effect is limited. Thus, this invention provides a dust collection protective cover for circular saws to solve the above problems. Utility Model Content

[0005] In view of the problems existing in the prior art, this utility model discloses a dust collection protective cover for a circular saw. The technical solution adopted is as follows: it includes a circular saw assembly, the circular saw assembly includes a base, the four corners of the base are respectively equipped with universal wheels with brakes, the left edge of the upper surface of the base is symmetrically welded with fixing ears at the front and back, the front and back fixing ears are rotatably inserted with pins, the pin on the front side of the front fixing ear is fitted with a torsion spring, the pin on the rear side of the front fixing ear is fixedly fitted with a connecting arm, the upper end of the connecting arm is equipped with the circular saw body, the middle part of the base is opened with a rectangular through groove opposite the saw blade, the pin on the rear side of the connecting arm is movably fitted with a chip collection cover, the chip collection cover includes a horizontal guide shroud, the end of the guide shroud fitted with the pin has a chip inlet, the left end of the guide shroud is fixedly connected to a circular deceleration shroud, and a bottom collection component is provided on the lower surface of the base opposite the rectangular through groove.

[0006] As a preferred embodiment of this utility model, one end of the flow guide sleeve fitted on the pin is semi-circular, and when the flow guide sleeve is horizontal, its bottom is in contact with the surface of the base; this design has two advantages: firstly, when the flow guide sleeve is horizontal, it is convenient to catch the debris flying out along the cutting point of the circular saw during cutting; secondly, it allows the flow guide sleeve to rotate around the pin.

[0007] As a preferred embodiment of this utility model, the circular damping cover has evenly spaced ventilation holes on its front and rear side walls. By opening ventilation holes, the debris and airflow flying out during cutting enter the circular damping cover, the airflow escapes from the ventilation holes, and the debris rotates once along the inner wall of the circular damping cover before falling back into the circular damping cover, thus avoiding direct obstruction that could cause it to splash.

[0008] As a preferred embodiment of this utility model, limiting holes are respectively opened on the upper part and left side of the guide wall behind the chip inlet, and the limiting holes are arranged in a circumferential array around the pin; by opening the limiting holes, it is convenient to cooperate with the magnetic limiting pin, so that the chip collection cover is horizontal when in use and vertical when not in use, thus avoiding the chip collection cover being damaged by collision when moving the circular saw.

[0009] As a preferred embodiment of this utility model, a through hole is provided on the fixing ear on the rear side opposite to the upper limiting hole, and a magnetic limiting pin is movably inserted into the through hole.

[0010] As a preferred embodiment of this utility model, the bottom collecting component includes an L-shaped slide rail fixedly connected to the front and rear edges of the lower part of the rectangular through groove, and a chip collection box is slidably mounted on the front and rear L-shaped slide rails. A handle is provided at the right end of the chip collection box. By providing a chip collection box that can be pulled out and removed, it is convenient to collect the debris that splashes downwards during the cutting process.

[0011] The beneficial effects of this utility model are as follows: By setting up a chip collection hood, the guide hood of the chip collection hood can effectively catch horizontally splashed chips. With the help of the circular buffer hood and the vent holes, the airflow can be released and the chips can be rotated and buffered to avoid splashing, thus improving the efficiency of horizontal chip collection. The L-shaped slide rail of the bottom collection component cooperates with the chip collection box to efficiently collect chips falling from the rectangular through groove. The pull-out design of the chip collection box is easy to clean. In this way, the chip generated by the circular saw during the cutting process can be effectively collected, thus providing a certain degree of protection for the surrounding area and pedestrians.

[0012] In addition, the combination of the limiting hole and the magnetic limiting pin can fix the dust collection cover in a horizontal position when in use and in a vertical position when not in use, avoiding collision damage during movement and improving the convenience of using the dust collection cover. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the circular saw assembly of this utility model;

[0015] Figure 3 This is a schematic diagram of the dust collection cover of this utility model;

[0016] Figure 4 This is a schematic diagram of the bottom collecting component of this utility model.

[0017] In the diagram: 1-Circular saw assembly, 11-Base, 111-Rectangular through slot, 12-Wheel caster, 13-Fixing lug, 14-Pin, 15-Torsion spring, 16-Connecting arm, 17-Circular saw body, 2-Chip collection hood, 21-Guide hood, 22-Chip inlet, 23-Circular damping hood, 24-Ventilation hole, 25-Limiting hole, 26-Magnetic limiting pin, 3-Bottom collection assembly, 31-L-shaped slide rail, 32-Chip collection box, 33-Handle. Detailed Implementation

[0018] Example 1

[0019] like Figures 1 to 4As shown, the dust collection and protective cover for a circular saw of this utility model adopts the following technical solution: It includes a circular saw assembly 1, which includes a base 11. Four universal wheels 12 with brakes are installed at the four corners of the base 11. A fixing lug 13 is symmetrically welded to the middle of the left edge of the upper surface of the base 11. Pins 14 are rotatably inserted into the front and rear fixing lugs 13. A torsion spring 15 is fitted onto the pin 14 on the front side of the front fixing lug 13. A connecting arm 16 is fixedly fitted onto the pin 14 on the rear side of the front fixing lug 13. A circular saw body 17 is installed at the upper end of the connecting arm 16. A rectangular through slot 111 is formed in the middle of the base 11 opposite the saw blade. A chip collection cover 2 is movably fitted onto the pin on the rear side of the connecting arm 16. The chip collection cover 2 includes a horizontal guide shroud 21. The flow guide shroud 21 has a semi-circular end that is fitted onto the pin. When the flow guide shroud 21 is horizontal, its bottom is in contact with the surface of the base 11. A chip inlet 22 is provided at the end of the flow guide shroud 21 fitted onto the pin. A circular deceleration shroud 23 is fixedly connected to the left end of the flow guide shroud 21. Ventilation holes 24 are evenly provided on the front and rear side walls of the circular deceleration shroud 23. Limiting holes 25 are provided on the upper part and left side of the flow guide shroud wall behind the chip inlet 22. The limiting holes 25 are arranged in a circumferential array around the pin 14. A through hole is provided on the rear fixing lug 13 opposite the upper limiting hole 25. A magnetic limiting pin 26 is movably inserted into the through hole. The pin head of the magnetic limiting pin 26 can be magnetically attracted to the rear fixing lug 13 for easy insertion and removal, improving the convenience of use. A bottom collection component 3 is provided on the lower surface of the base opposite the rectangular through groove 111. The bottom collecting component 3 includes an L-shaped slide rail 31 fixedly connected to the front and rear edges of the lower part of the rectangular through groove 111. A chip collection box 32 is slidably mounted on the front and rear L-shaped slide rails 31. A handle 33 is provided at the right end of the chip collection box 32.

[0020] The working principle of this utility model is as follows: During use, the magnetic limiting pin 26 is inserted into the limiting hole 25 on the upper part of the pin 14 to fix the chip collection cover 2 in a horizontal position. At this time, the bottom of the guide cover 21 is in contact with the surface of the base 11. When the circular saw body 17 is used for cutting, the horizontally flying debris enters the guide cover 21 through the chip inlet 22 and is guided into the circular deceleration cover 23. The airflow is released through the vent 24, and the debris rotates and is buffered along the inner wall of the circular deceleration cover 23 before falling and being collected. The downwardly flying debris passes through the rectangular... The debris falls into the chip collection box 32 of the bottom collection component 3 through the through groove 111; after cutting, the magnetic limit pin 26 is pulled out, and the chip collection cover 2 can rotate around the pin 14 to a vertical position, discharge the debris remaining in the circular slowing cover 23, and scrape it into the rectangular through groove 111 so that it falls into the chip collection box 32, and then fix it with the magnetic limit pin 26 to avoid damage during movement. Finally, the chip collection box 32 is pulled out by the handle 33 and the debris is poured out; the universal wheels 12 can move the equipment flexibly, and the braking function ensures the stability of the equipment during operation.

[0021] Electrical connection methods or structures not described in detail in this article are existing technologies.

[0022] While the specific embodiments of this utility model have been described in detail above, this utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model. Modifications or variations that do not involve creative labor are still within the protection scope of this utility model.

Claims

1. A dust collection protective cover for a circular saw, comprising a circular saw assembly (1), the circular saw assembly (1) comprising a base (11), universal wheels (12) with brakes respectively installed at the four corners of the base (11), fixing ears (13) symmetrically welded to the middle of the left edge of the upper surface of the base (11), the front and rear fixing ears (13) being rotatably inserted with pins (14), a torsion spring (15) being fitted on the pin (14) on the front side of the front fixing ear (13), a connecting arm (16) being fixedly fitted on the pin (14) on the rear side of the front fixing ear (13), the upper end of the connecting arm (16) being fitted with the circular saw body (17), characterized in that: A rectangular through slot (111) is opened in the middle part of the base (11) opposite the position of the saw blade. A chip collection hood (2) is movably mounted on the pin on the rear side of the connecting arm (16). The chip collection hood (2) includes a horizontal guide hood (21). One end of the guide hood (21) mounted on the pin has a chip inlet (22). The left end of the guide hood (21) is fixedly connected to a circular deceleration hood (23). A bottom collection component (3) is provided on the lower surface of the base opposite the rectangular through slot (111).

2. The dust collection protective cover for a circular saw machine according to claim 1, characterized in that: The end of the flow guide (21) that is fitted onto the pin is semi-circular. When the flow guide (21) is horizontal, its bottom is in contact with the surface of the base (11).

3. The dust collection and protective cover for a circular saw machine according to claim 1, characterized in that: The circular buffer cover (23) has ventilation holes (24) evenly distributed on its front and rear side walls.

4. The dust collection and protective cover for a circular saw machine according to claim 1, characterized in that: Limiting holes (25) are respectively opened on the upper part and left side of the guide wall behind the chip inlet (22), and the limiting holes (25) are arranged in a circumferential array around the pin (14).

5. A dust collection and protective cover for a circular saw machine according to claim 4, characterized in that: A through hole is provided on the rear fixing ear (13) opposite to the upper limiting hole (25), and a magnetic limiting pin (26) is movably inserted into the through hole.

6. A dust collection and protective cover for a circular saw machine according to claim 1, characterized in that: The bottom collecting component (3) includes an L-shaped slide rail (31) fixedly connected to the front and rear edges of the lower part of the rectangular through groove (111), and a chip collection box (32) is slidably mounted on the front and rear L-shaped slide rails (31), with a handle (33) provided at the right end of the chip collection box (32).

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