Anti-blocking jig saw device with intelligent dust blowing function

By introducing a dust-blowing guard and a magnetically controlled airflow channel into the jigsaw unit, the problems of saw blade cutting dust accumulation and saw teeth electrostatic adsorption of dust have been solved, achieving a clear field of vision and efficient cleaning effect.

CN120962009APending Publication Date: 2025-11-18ZHEJIANG TONGDA ELECTRICAL APPLIANCE
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Patent Information

Application Number
CN202511063530.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-31
Publication Date
2025-11-18

AI Technical Summary

Technical Problem

Existing jigsaw devices are prone to accumulating and clogging saw blades during the cutting process, affecting the cutting field of vision, and the dust attracted by electrostatic charge on the saw teeth is difficult to clean.

Method used

The dust-blowing protective frame includes a pressure frame, connecting plate, center plate, air duct adjustment component, ear plate, limit block, connecting pipe and dust blowing component. It uses the repulsive magnetic force of like poles of an electromagnet device and a magnetic block to control the airflow, thereby preventing the accumulation of saw blade cutting dust and cleaning the dust by electrostatic adsorption.

Benefits of technology

It effectively prevents saw blade cutting chips and dust from accumulating and clogging, provides a clear cutting view, and cleans the electrostatically adsorbed dust on the saw teeth, improving operational safety and efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN120962009A_ABST
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Abstract

The invention relates to the technical field of jig saws, in particular to an anti-blocking intelligent dust blowing jig saw device which comprises a jig saw body and a dust blowing protection frame, and the dust blowing protection frame comprises a pressing frame, a connecting plate, a center plate, an air duct adjusting assembly, a lug plate, a limiting block, a connecting pipe, a first dust blowing piece and a second dust blowing piece. When the air guide cylinder moves to the bottommost end, the ventilation groove in the air guide cylinder is communicated with the air guide channel in the lower layer of the center plate, and the buffer spring is in a compressed state, so that the air guide cylinder moves to the bottommost end of the air guide cylinder. According to the saw blade dust blowing and cleaning device, dust blowing and cleaning treatment for preventing accumulation and blockage can be conveniently conducted on saw blade cutting dust in the cutting work, and the saw blade dust blowing and cleaning device is used for providing a clear cutting visual field.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of curve saws, in particular to a curve saw device capable of preventing blockage and intelligently blowing dust. BACKGROUND

[0002] A curve saw is an electric tool used for cutting complex curves and special-shaped profiles. Its core feature is that the saw blade can move flexibly in multiple directions, and it is suitable for fine processing of various materials such as wood, metal and plastic. Taking a curve saw device with a retractable saw blade as an example.

[0003] The device main body of the curve saw device with a retractable saw blade is not convenient for blowing dust and cleaning the saw blade cutting dust during cutting work to prevent accumulation and blockage, which affects the cutting field of view of the operator. The device main body is not convenient for blowing dust and cleaning the dust and dirt electrostatically adsorbed on the saw blade after cutting after the saw blade is cut, so a curve saw device capable of preventing blockage and intelligently blowing dust is proposed. SUMMARY

[0004] The present application aims to provide a curve saw device capable of preventing blockage and intelligently blowing dust, which solves the problem that the device main body of the curve saw device with a retractable saw blade is not convenient for blowing dust and cleaning the saw blade cutting dust during cutting work to prevent accumulation and blockage, which affects the cutting field of view of the operator, and the device main body is not convenient for blowing dust and cleaning the dust and dirt electrostatically adsorbed on the saw blade after cutting after the saw blade is cut.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0006] A curve saw device capable of preventing blockage and intelligently blowing dust, comprising a curve saw main body and a dust blowing protection frame, wherein the curve saw main body is provided at the bottom with the dust blowing protection frame, and the dust blowing protection frame comprises a pressing frame, a connecting plate, a center plate, a air duct adjusting assembly, an ear plate, a limiting block, a connecting pipe, a first dust blowing piece and a second dust blowing piece. The pressing frame is provided at the front end inner wall and the rear end inner wall with two connecting plates fixedly and symmetrically arranged, the pressing frame is provided at the right side hole inner wall with the center plate fixedly arranged, the center plate is provided at the top with the air duct adjusting assembly, the air duct adjusting assembly is provided at the left end and the right end with two ear plates fixedly and symmetrically arranged, the center plate is provided at the top end with the limiting block fixedly arranged, the limiting block is provided at the inside with the connecting pipe fixedly arranged, the pressing frame is provided at the left side hole inner wall with the first dust blowing piece fixedly arranged, and the pressing frame is provided at the left side upper portion with the second dust blowing piece fixedly arranged.

[0007] Preferably, the air duct adjusting assembly comprises a plate body, a ring plate, a cylinder plate, a buffer spring, a magnet block, a partition plate and an air guide cylinder, the top end of the plate body is fixedly provided with the ring plate, the bottom end and the top end of the center plate of the plate body are fixedly provided with the cylinder plate, the top end of the center plate is fixedly provided with the buffer spring, the top end of the buffer spring is fixedly provided with the magnet block, and the bottom end of the magnet block is fixedly provided with the partition plate and the air guide cylinder.

[0008] Preferably, the bottom end of the curve saw body is internally provided with an electromagnet device, and the inside of the ear plate and the inside of the bottom end of the curve saw body are threadedly assembled through a stud.

[0009] Preferably, the right end of the cylinder plate is fixedly and communicatively provided with a connecting pipe left end, and the air guide groove arranged in the air guide cylinder is communicatively arranged with the center plate internal air guide.

[0010] Preferably, the left end of the first dust blowing piece and the right end of the second dust blowing piece are fixedly provided with dustproof separation nets.

[0011] Preferably, the center plate lower layer air guide, the pressure frame internal air guide and the first dust blowing piece internal air guide are lower layer communication type air flow channels.

[0012] Preferably, the center plate upper layer air guide, the pressure frame internal air guide and the second dust blowing piece internal air guide are upper layer communication type air flow channels.

[0013] Compared with the prior art, the present application has the following beneficial effects:

[0014] 1. In the present application, when the internal circuit of the curve saw body is communicated, the retracted saw blade extends to cut the object, at the same time, the electromagnet device is connected to the power supply, the same polarity repulsion magnetic force is formed between the electromagnet device and the magnet block, when the air guide cylinder moves to the bottom end, the air guide groove in the air guide cylinder is communicated with the center plate lower layer air guide, the buffer spring is in a compressed state, the air in the connecting pipe is transported to the first dust blowing piece, and the air blows along the side of the saw blade to the direction of the saw teeth, through the above arrangement, dust cleaning treatment is facilitated for preventing the accumulation and blockage of saw blade cutting dust during cutting, and a clear cutting field is provided.

[0015] 2. In the present application, after the curve saw body is cut, the outwardly protruding saw blade is retracted inwardly, the electromagnet device is powered off during the retraction of the saw blade, the same polarity repulsion magnetic force between the electromagnet device and the magnet block disappears, under the elastic reset action of the buffer spring, the air guide groove in the air guide cylinder is communicated with the center plate upper layer air guide, the air in the connecting pipe is transported to the second dust blowing piece, and the air blows to the direction of the saw teeth of the saw blade, through the above arrangement, dust cleaning treatment is facilitated for the electrostatically adsorbed dust after cutting the saw teeth of the cutting saw blade. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 This is a schematic diagram showing the installation positions of the jigsaw body and the dust-blowing protective frame of the present invention;

[0017] Figure 2 This is a schematic diagram of the upper and lower disassembled structure of the jigsaw body and the dust blowing protective frame of the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of the pressure frame, connecting plate, and center plate of the present invention;

[0019] Figure 4 This is a schematic diagram of the bottom structure of the jigsaw body of the present invention;

[0020] Figure 5 This is a schematic cross-sectional view of the pressure frame and the second dust blowing component of the present invention;

[0021] Figure 6 This is a schematic cross-sectional view of the pressure frame and the second dust blowing component of the present invention;

[0022] Figure 7 For the present invention Figure 5 A magnified structural diagram at point A;

[0023] Figure 8 For the present invention Figure 5 A magnified structural diagram at point B;

[0024] Figure 9 This is a schematic diagram of the magnet block and partition structure of the present invention;

[0025] Figure 10 This is a schematic diagram of the cross-sectional structure of the pressure frame and the center plate of the present invention;

[0026] Figure 11 This is a schematic diagram showing the cross-sectional position of the central plate of the present invention;

[0027] Figure 12 For the present invention Figure 11 A magnified structural diagram at point C.

[0028] In the diagram: 1. Jigsaw body; 2. Dust blowing protective frame; 21. Pressure frame; 22. Connecting plate; 23. Center plate; 24. Air duct adjustment assembly; 241. Plate; 242. Ring plate; 243. Cylinder plate; 244. Buffer spring; 245. Magnet block; 246. Partition plate; 247. Air guide tube; 25. Ear plate; 26. Limiting block; 27. Connecting pipe; 28. First dust blowing component; 29. ​​Second dust blowing component. Detailed Implementation

[0029] Clearly, the described embodiments are only a part of the embodiments of the application, but not all the embodiments. Based on the embodiments of the application, all other embodiments obtained by a person of ordinary skill in the art without creative effort are within the protection scope of the application.

[0030] In the embodiments of the application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the position or positional relationship shown in the drawings, and are only used to facilitate the description of the application and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the application. In addition, the terms "first", "second", "third" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance. Similarly, "one", "an" or "the" and the like similar words do not mean quantitative limitation, but mean the existence of at least one. "Include" or "contain" and the like similar words mean that the elements or objects before the word are encompassed by the elements or objects listed after the word and their equivalents, and do not exclude other elements or objects.

[0031] In addition, in the embodiments of the application, unless otherwise clearly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For a person of ordinary skill in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0032] Please refer to Figures 1-12 The application provides a technical solution:

[0033] The utility model provides a kind of anti-clogging intelligent dust blowing curve saw device, including curve saw body 1 and dust protection frame 2, curve saw body 1 bottom is provided with dust protection frame 2, dust protection frame 2 includes pressing frame 21, connecting plate 22, center plate 23, air duct adjusting assembly 24, lug plate 25, limiting block 26, connecting pipe 27, first dust blowing piece 28 and second dust blowing piece 29, two connecting plates 22 are symmetrically arranged and fixed in the front end inner wall of pressing frame 21, rear end inner wall, center plate 23 is fixedly arranged in the right side hole inner wall of pressing frame 21, center plate 23 top is provided with air duct adjusting assembly 24, two lug plates 25 are symmetrically arranged in the left end, right end of air duct adjusting assembly 24, limiting block 26 is fixedly arranged in the top of center plate 23, connecting pipe 27 is fixedly arranged in the inside of limiting block 26, first dust blowing piece 28 is fixedly arranged in the left side hole inner wall of pressing frame 21, and second dust blowing piece 29 is fixedly arranged in the left side upper of pressing frame 21.

[0034] Air duct adjusting assembly 24 includes plate body 241, ring plate 242, cylinder plate 243, buffer spring 244, magnet block 245, partition 246 and air guide cylinder 247, ring plate 242 is fixedly arranged in the top of plate body 241, cylinder plate 243 is fixedly arranged in the bottom of plate body 241 and the top of center plate 23, buffer spring 244 is fixedly arranged in the top of center plate 23, magnet block 245 is fixedly arranged in the top of buffer spring 244, partition 246 and air guide cylinder 247 are fixedly arranged in the bottom of magnet block 245, by the above setting, the combination type air duct adjusting assembly 24 is formed.

[0035] Electromagnet device is installed and arranged in the inside of curve saw body 1 bottom end, lug plate 25 inside and the inside of curve saw body 1 bottom end are assembled by stud screw thread, by the above setting, it is convenient to install combination for curve saw body 1, dust protection frame 2.

[0036] Cylinder plate 243 right end is fixedly connected with the left end of connecting pipe 27, the air passage provided in the inside of air guide cylinder 247 is communicated with the air guide channel in the inside of center plate 23, by the above setting, the right end of connecting pipe 27 is installed and communicated with external air blowing pump device, and the communication air supply structure is formed.

[0037] Dustproof screen is fixedly arranged in the inside of the left end of first dust blowing piece 28 and the inside of the right end of second dust blowing piece 29, by the above setting, prevent external debris dust from entering the inside of first dust blowing piece 28 and second dust blowing piece 29.

[0038] The air guide channel in the lower layer of center plate 23, the air guide channel in the inside of pressing frame 21 and the air guide channel in the inside of first dust blowing piece 28 are lower layer communication type air flow channel, by the above setting, air blows along the direction of saw blade side surface to saw tooth, can effectively prevent debris dust from being accumulated and blocked in cutting path position, for providing clear cutting field of vision.

[0039] The upper layer air guide way of the center plate 23, the internal air guide way of the pressing frame 21 and the internal air guide way of the second dust blowing piece 29 are upper layer communication type air flow channels.

[0040] Workflow: The present application provides a saw blade retractable curve saw device, which can prevent the accumulation and blockage of dust during cutting, provide a clear cutting field, and clean the dust on the saw blade after cutting.

[0041] The saw blade retractable curve saw device is the existing curve saw equipment, when the curve saw works, the retracted saw blade extends to cut the object, after the curve saw works, the protruding saw blade retracts, which has strong safety, the inner ear plate 25, the bottom end of the curve saw body 1 are screw threaded and assembled, which is used for installing and arranging the dust blowing protection frame 2 at the bottom of the curve saw body 1, the right end of the connecting pipe 27 is connected with the external air blowing pump device, which provides the air source for the dust blowing of the device, as shown in the figure, the electromagnet device arranged at the bottom of the curve saw body 1 is located at the top of the magnet block 245. Figure 7

[0042] When the internal circuit of the curve saw body 1 is connected, the retracted saw blade extends to cut the object, and the electromagnet device is connected with electricity at the same time, at this time, the electromagnet device and the magnet block 245 form the magnetic force of same sex repulsion, the air guide cylinder 247 and the silica gel bushing arranged in the center plate 23 are slidingly arranged, the magnet block 245, the partition plate 246 and the air guide cylinder 247 move downward, when the air guide cylinder 247 moves to the bottom end, the air guide cylinder 247 is connected with the lower layer air guide way of the center plate 23, the buffer spring 244 is in the compressed state, because the lower layer air guide way of the center plate 23, the internal air guide way of the pressing frame 21 and the internal air guide way of the first dust blowing piece 28 are lower layer communication type air flow channels, the air in the connecting pipe 27 can be transported to the internal first dust blowing piece 28 and blown out through the dustproof screen arranged at the left end of the first dust blowing piece 28, the air blows along the side surface of the saw blade to the direction of the saw blade, which can effectively prevent the accumulation and blockage of dust in the cutting path, and provide a clear cutting field.

[0043] ​When the curved saw body 1 is cut off, the convex saw blade is inwardly retracted, the electromagnet device is powered off during the retraction of the saw blade, the magnetic force between the electromagnet device and the magnet block 245 disappears, under the elastic reset action of the buffer spring 244, the magnet block 245, the partition plate 246 and the air guide cylinder 247 are upwardly reset and moved, until the air guide cylinder 247 is connected with the upper air guide of the center plate 23, because the upper air guide of the center plate 23, the internal air guide of the pressing frame 21 and the internal air guide of the second dust blowing piece 29 are upper-layer connected air flow channels, the air in the connecting pipe 27 can be transported to the inside of the second dust blowing piece 29, and then blown out through the dustproof filter screen arranged at the right end of the second dust blowing piece 29, the air is blown in the direction of the saw blade teeth, so that the dust and dirt electrostatically adhered to the saw blade teeth after cutting can be blown and cleaned.

[0044] Although embodiments of the invention have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the invention, the scope of the invention being defined by the appended claims and their equivalents.

Claims

1. A jigsaw device with anti-clogging intelligent dust blowing, comprising a jigsaw body (1) and a dust blowing protective frame (2), characterized in that: The bottom of the jigsaw body (1) is provided with a dust-blowing protective frame (2). The dust-blowing protective frame (2) includes a pressure frame (21), a connecting plate (22), a center plate (23), an air duct adjustment component (24), an ear plate (25), a limiting block (26), a connecting pipe (27), a first dust-blowing component (28), and a second dust-blowing component (29). Two connecting plates (22) are symmetrically and fixedly arranged on the inner wall of the front end and the inner wall of the rear end of the pressure frame (21). The inner wall of the opening on the right side of the pressure frame (21) is fixedly provided with a... A central plate (23) is provided with an air duct adjustment component (24) on its top. Two ear plates (25) are symmetrically distributed on the left and right ends of the air duct adjustment component (24). A limit block (26) is fixedly provided at the top of the central plate (23). A connecting pipe (27) is fixedly provided inside the limit block (26). A first dust blowing component (28) is fixedly provided on the inner wall of the opening on the left side of the pressure frame (21). A second dust blowing component (29) is fixedly provided on the upper left side of the pressure frame (21).

2. The anti-clogging intelligent dust blowing jigsaw device according to claim 1, characterized in that: The air duct adjustment assembly (24) includes a plate (241), a ring plate (242), a cylindrical plate (243), a buffer spring (244), a magnet (245), a partition plate (246), and an air guide tube (247). The ring plate (242) is fixedly installed at the top of the plate (241). The cylindrical plate (243) is fixedly installed at the bottom of the plate (241) and at the top of the center plate (23). The buffer spring (244) is fixedly installed at the top of the center plate (23). The magnet (245) is fixedly installed at the top of the buffer spring (244). The partition plate (246) and the air guide tube (247) are fixedly installed at the bottom of the magnet (245).

3. The anti-clogging intelligent dust blowing jigsaw device according to claim 1, characterized in that: An electromagnet device is installed inside the bottom end of the jigsaw body (1), and the ear plate (25) and the bottom end of the jigsaw body (1) are assembled by stud threads.

4. The anti-clogging intelligent dust blowing jigsaw device according to claim 2, characterized in that: The right end of the cylinder plate (243) is fixedly connected to the left end of the connecting pipe (27), and the ventilation groove inside the air guide cylinder (247) is connected to the air guide channel inside the center plate (23).

5. The anti-clogging intelligent dust blowing jigsaw device according to claim 1, characterized in that: A dustproof mesh is fixedly installed inside the left end of the first dust blowing component (28) and inside the right end of the second dust blowing component (29).

6. The anti-clogging intelligent dust blowing jigsaw device according to claim 1, characterized in that: The lower air duct of the center plate (23), the internal air duct of the pressure frame (21), and the internal air duct of the first dust blowing component (28) are lower connected air ducts.

7. The anti-clogging intelligent dust blowing jigsaw device according to claim 1, characterized in that: The upper air duct of the center plate (23), the internal air duct of the pressure frame (21), and the internal air duct of the second dust blowing component (29) are upper connected air ducts.