Brushless portable single-hand small circular saw

Abstract

The utility model provides a brushless portable single-hand small circular saw, which relates to the technical field of circular saws, and comprises a circular saw main body, the rear end of the circular saw main body is connected with an electric control box, the surface of a handle of the circular saw main body is connected with an automatic dust collection assembly, the automatic dust collection assembly comprises a collection box, the collection box is internally provided with a connection box, and the connection box is connected with the electric control box. A threaded groove is connected to one side of the connecting box, a hand screwing bolt is inserted into one side of the collecting box, an isolation cloth bag is connected to the top of one side of the collecting box, and a connecting pipe is connected to the top of the other side of the collecting box. According to the novel circular saw, when materials are cut through the circular saw body, most of chippings generated in the cutting process can be sucked into the collecting box through the dust suction opening, the connecting box can be detached and cleaned through a hand-screwed bolt, chipping pollution in the material cutting process is reduced, and the situation that the working environment is polluted due to the fact that a large amount of dust and chippings are generated is avoided; and respiratory system diseases, such as pneumoconiosis, can be caused to operators.

Description

Technical Field

[0001] This utility model relates to the field of circular saw technology, and in particular to a brushless portable one-handed small circular saw. Background Technology

[0002] A circular saw is a power tool with a circular saw blade. Its core feature is a circular saw blade, the edge of which is usually inlaid with sharp teeth, used for efficiently cutting a variety of materials such as wood, metal, and concrete.

[0003] As described in announcement number CN115805612A, a handheld circular saw includes: a saw blade extending in a cutting plane; an output shaft for mounting the saw blade; a motor for driving the output shaft to rotate about a first axis; and a housing including a motor housing for accommodating at least a portion of the motor. The diameter of the saw blade is greater than or equal to 110 mm and less than or equal to 150 mm, and the ratio of the weight of the handheld circular saw without the battery pack to the diameter of the saw blade is greater than or equal to 9 and less than or equal to 16. This design provides a compact handheld circular saw with a good user experience.

[0004] The application provides a compact, user-friendly handheld circular saw. However, existing circular saws generate a lot of debris after cutting materials, and the dust and debris pollute the working environment and can cause respiratory diseases such as pneumoconiosis in operators.

[0005] Therefore, we propose a novel brushless portable one-handed circular saw. Utility Model Content

[0006] The purpose of this invention is to solve the problem that existing circular saws produce a lot of debris after cutting materials, and that dust and debris pollute the working environment and cause respiratory diseases such as pneumoconiosis in operators.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a brushless portable single-handed circular saw, comprising a circular saw body, an electrical control box connected to the rear end of the circular saw body, an automatic dust collection component connected to the handle surface of the circular saw body, the automatic dust collection component comprising a collection box, a connecting box disposed inside the collection box, a threaded groove connected to one side of the connecting box, a hand-tightening bolt inserted into the inside of one side of the collection box, an isolation bag connected to the top of one side of the collection box, a connecting pipe connected to the top of the other side of the collection box, a suction port connected to one end of the connecting pipe, and a suction fan connected directly above the isolation bag.

[0008] Furthermore, the suction fan is electrically connected to an external power source via a control switch, and a sealing ring is provided on the surface of the connection box near the handle.

[0009] Furthermore, the position and size of the hand-tightening bolt match the position and size of the threaded groove, and the hand-tightening bolt, after passing through the collection box, forms a threaded connection with the threaded groove.

[0010] Furthermore, the outer surface of the connecting box is in contact with the inner wall of the collecting box, and a sliding connection is formed between the connecting box and the collecting box.

[0011] Furthermore, the surface of the electrical control box is provided with a heat dissipation and dust prevention component, which includes a fan, and a dustproof mesh is connected to the surface of the electrical control box near the fan.

[0012] Furthermore, the dustproof net is provided inside, and magnetic blocks are connected to both outer surfaces of the dustproof net, while magnets are provided on both inner walls of the dustproof net.

[0013] Furthermore, the magnetic block and the magnet form a magnetic attraction connection.

[0014] Furthermore, the position and size of the magnetic block match the position and size of the magnet.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0016] 1. In this utility model, when the material is cut by the circular saw body, the dust suction port will suck most of the debris generated during the cutting into the collection box. The connecting box can be disassembled and cleaned by hand-tightening the bolts, which reduces the debris pollution when cutting materials and avoids the problem that dust and debris will pollute the working environment and cause respiratory diseases such as pneumoconiosis to the operators.

[0017] 2. In this utility model, the electronic components of the control box can be cooled by a fan to prevent high temperatures caused by prolonged use, which would reduce the service life of the circular saw body. Attached Figure Description

[0018] Figure 1 A three-dimensional structural diagram of a brushless portable one-handed circular saw is provided for this utility model;

[0019] Figure 2 This utility model presents a three-dimensional structural diagram of a brushless portable one-handed circular saw from another angle.

[0020] Figure 3 This invention provides a partially exploded structural diagram of a brushless portable one-handed circular saw.

[0021] Figure 4 This utility model presents a schematic diagram of the electrical control box structure for a brushless portable one-handed circular saw.

[0022] Illustration: 1. Circular saw body; 2. Electrical control box; 3. Automatic dust collection assembly; 301. Collection box; 302. Connecting box; 303. Threaded groove; 304. Hand-tightening bolt; 305. Fan; 306. Isolation bag; 307. Isolation bag; 308. Dust suction port; 4. Heat dissipation and dust prevention assembly; 401. Fan; 402. Frame; 403. Dustproof net; 404. Magnetic block. Detailed Implementation

[0023] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0025] Example 1, such as Figure 1 - Figure 3 As shown, this utility model provides a brushless portable one-handed circular saw, including a circular saw body 1, an electronic control box 2 connected to the rear end of the circular saw body 1, and an automatic dust collection component 3 connected to the handle surface of the circular saw body 1. The automatic dust collection component 3 includes a collection box 301, a connecting box 302 disposed inside the collection box 301, a threaded groove 303 connected to one side of the connecting box 302, a hand-tightening bolt 304 inserted into the inside of one side of the collection box 301, an isolation bag 306 connected to the top of one side of the collection box 301, and a connecting tube 307 connected to the top of the other side of the collection box 301. One end of the connecting pipe 307 is connected to a dust suction port 308. A suction fan 305 is connected directly above the isolation bag 306. The suction fan 305 is electrically connected to an external power source via a control switch. A sealing ring is provided on the surface of the connecting box 302 near the handle. The position and size of the hand-tightening bolt 304 match the position and size of the threaded groove 303. The hand-tightening bolt 304 passes through the collection box 301 and forms a threaded connection with the threaded groove 303. The outer surface of the connecting box 302 fits against the inner wall of the collection box 301. A sliding connection is formed between the connecting box 302 and the collection box 301.

[0026] The overall effect of Embodiment 1 is that when the circular saw body 1 is cutting the material, the suction fan 305 can draw dust into the suction port 308, and the dust is sent into the collection box 301 through the connecting pipe 307. The connecting box 302 will draw most of the debris generated during cutting into the collection box 301. The isolation bag 306 can isolate the debris drawn in by the suction fan 305, preventing damage to the suction fan 305. After a significant amount of debris has been collected in 302, the hand-tightened bolt 304 can be removed. At this point, the connecting box 302 can be pulled outwards, and the debris inside the connecting box 302 can be cleaned. After cleaning, the connecting box 302 can be pushed into the collecting box 301. Then, the hand-tightened bolt 304 can be threaded through the collecting box 301 and bolted into the threaded groove 303. This reduces debris pollution during material cutting and avoids the problem of dust and debris polluting the working environment and causing respiratory diseases such as pneumoconiosis in operators.

[0027] Example 2, as Figure 1 and Figure 4 As shown, the surface of the electrical control box 2 is provided with a heat dissipation and dust prevention component 4, which includes a fan 401. A dustproof mesh 403 is connected to the surface of the electrical control box 2 near the fan 401. A dustproof mesh 403 is provided inside the dustproof mesh 403. Magnetic blocks 404 are connected to the outer surfaces of both sides of the dustproof mesh 403. Magnets are provided on the inner walls of both sides of the dustproof mesh 403. The magnetic blocks 404 and the magnets form a magnetic connection. The position and size of the magnetic blocks 404 match the position and size of the magnets.

[0028] The effect achieved by the entire embodiment 2 is that when the electrical control box 2 is used for a long time, it will cause high temperature. The fan 401 can dissipate heat from the electrical control box 2. The dustproof net 403 can isolate external dust. There is also a heat dissipation hole on the other side of the electrical control box 2 to dissipate heat. The dustproof net 403 can be removed and cleaned by pulling it upward. After cleaning, the dustproof net 403 can be directly inserted into the frame 402 and fixed by magnetic attraction using the magnetic block 404 and the magnet.

[0029] Working principle: When cutting materials through the circular saw body 1, the dust suction port 308 sucks most of the debris generated during cutting into the collection box 301. The connecting box 302 can be disassembled and cleaned by hand-tightening the bolts 304, which reduces debris pollution during material cutting and avoids the problem of dust and debris polluting the working environment and causing respiratory diseases such as pneumoconiosis to operators. The fan 401 can dissipate heat from the electronic components of the electrical control box 2 to prevent high temperature caused by prolonged use and thus reduce the service life of the circular saw body 1.

[0030] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the scope of the technical solution of this utility model shall still fall within the protection scope of the technical solution of this utility model.

Claims

1. A brushless portable one-handed mini-circular saw comprising a circular saw body (1), characterized in that: The rear end of the circular saw body (1) is connected with an electric control box (2), and the handle surface of the circular saw body (1) is connected with an automatic dust collection assembly (3). The automatic dust collection assembly (3) comprises a collection box (301), the inside of the collection box (301) is provided with a connecting box (302), one side of the connecting box (302) is connected with a threaded groove (303), the inside of one side of the collection box (301) is inserted with a hand screw bolt (304), the top of one side of the collection box (301) is connected with a isolation cloth bag (306), the top of the other side of the collection box (301) is connected with a connecting pipe (307), one end of the connecting pipe (307) is connected with a dust collection port (308), the isolation cloth bag (306) is connected with a dust collector (305) above.

2. The brushless portable one-handed mini-circular saw according to claim 1, characterized in that: The dust collector (305) is electrically connected with an external power supply through a control switch, and the surface of the connecting box (302) close to the handle is provided with a sealing ring.

3. The brushless portable one-hand mini-circular saw according to claim 2, characterized in that: The position and size of the hand screw bolt (304) are matched with the position and size of the threaded groove (303), and the hand screw bolt (304) penetrates through the collection box (301) and is connected with the threaded groove (303) to form a threaded connection.

4. The brushless portable one-hand mini-circular saw according to claim 3, characterized in that: The outer surface of the connecting box (302) is matched with the inner wall of the collection box (301), and the connecting box (302) and the collection box (301) are connected to form a sliding connection.

5. The brushless portable one-hand mini-circular saw according to claim 1, characterized in that: The surface of the electric control box (2) is provided with a heat dissipation and dust prevention assembly (4), the heat dissipation and dust prevention assembly (4) comprises a fan (401), and the surface of the electric control box (2) close to the fan (401) is connected with a dust screen (403).

6. The brushless portable one-hand mini-circular saw according to claim 5, characterized in that: The inside of the dust screen (403) is provided with a dust screen (403), the outer surfaces of the two sides of the dust screen (403) are connected with magnetic attraction blocks (404), and the inner walls of the two sides of the dust screen (403) are provided with magnets.

7. The brushless portable one-hand mini-circular saw according to claim 6, characterized in that: The magnetic attraction blocks (404) and the magnets are connected to form a magnetic attraction connection.

8. The brushless portable one-hand mini-circular saw according to claim 7, characterized in that: The position and size of the magnetic attraction blocks (404) are matched with the position and size of the magnets.

Images