Dust collection protective cover for bench saw
By designing a dust collection cover with a sliding mechanism, column, telescopic cantilever, and adjustment mechanism, the problem of insufficient dust suction port design in the table saw was solved, achieving efficient capture of dust above the saw blade and adaptability to multiple table saw models, thus improving dust collection effect and ease of use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HARVEY WOODWORKING TECH (NANJING) CO LTD
- Filing Date
- 2025-06-25
- Publication Date
- 2026-05-19
AI Technical Summary
The existing table saws have inadequate dust extraction port design, which cannot effectively capture dust generated above the saw blade and in the direction of the operator, resulting in air pollution in the work area. In addition, the equipment is heavy, has poor adaptability, and has a complex adjustment structure, making it inconvenient to use.
A dust collection protective cover was designed, comprising a sliding mechanism, a column, a telescopic cantilever, an adjustment mechanism, and a protective cover body. Through the movable protective cover body working in conjunction with the dust collection equipment, it achieves efficient dust capture above the saw blade and in the direction of the operator. It is compatible with various models of table saws and has multi-directional adjustment functions.
It achieves efficient dust collection for table saws, capturing dust generated by the rotating saw blade, avoiding table surface contamination, and is compatible with various models of table saws, enhancing the applicability and ease of use of the equipment.
Smart Images
Figure CN224255565U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a dust collection protective cover for table saws, belonging to the field of table saw equipment. Background Technology
[0002] Current table saws have their dust inlets located below the saw blade or inside the bottom housing. Their purpose is to capture larger chips and some dust falling downwards, but they are largely ineffective at capturing dust generated above and in front of the saw blade or from the operator's direction. This upward-splashing dust is a major source of air pollution in the work area.
[0003] The size and shape of the suction port of existing equipment are too small, or the shape cannot effectively cover the working area of the saw blade (especially near the cutting point where the saw blade cuts into the wood), which limits the suction efficiency.
[0004] Secondly, the existing equipment has the following defects: the saw blade lacks top suction or blade cover suction. There is no suction port designed in the saw blade cover (protective cover) or top area of the saw blade, which cannot capture the most critical dust that flies directly towards the operator's face.
[0005] The main shortcomings of existing table saw dust collection systems lie in the design of the suction port, particularly the lack of an effective top suction system, poor sealing, and insufficient power of the dust collection system. The dust collection protective cover is also heavy, can only accommodate a limited number of table saws, has a complex adjustment structure, and is difficult to move during use. Utility Model Content
[0006] This invention provides a dust collection and protection cover for a table saw to address the above-mentioned problems.
[0007] The present invention adopts the following technical solution:
[0008] The dust collection protective cover for table saw described in this utility model includes a sliding mechanism, a column, a telescopic cantilever, an adjustment mechanism, a moving swing arm, and a cover body.
[0009] The sliding mechanism is equipped with a column for supporting the telescopic cantilever; the telescopic end of the telescopic cantilever is equipped with an adjustment mechanism for connecting the moving swing arm; the moving swing arm is fixedly connected to the protective cover body; the dust collection end of the protective cover body is connected to the telescopic cantilever via a pipe, and the end of the telescopic cantilever is connected to an external dust collection device via a pipe.
[0010] The dust collection protective cover for table saws described in this utility model includes a sliding mechanism comprising a guide rail, a guide rail mounting bracket, a slider, a column mounting bracket, a T-slot locking strip, a T-slot, a handle, and a fixing component.
[0011] The column mounting bracket is a movable component that moves along the extension direction of the guide rail mounting bracket. The column mounting bracket is provided with a column for fixing and supporting the telescopic cantilever, as well as a slider and a T-slot locking strip that cooperate with the guide rail.
[0012] The guide rail mounting bracket is provided with a guide rail that matches the slider and a T-slot that cooperates with the T-slot locking strip.
[0013] The T-slot locking strip is connected to the handle by passing through the column mounting bracket;
[0014] The top of the guide rail mounting bracket is equipped with a fixing component.
[0015] The dust collection protective cover for table saws described in this utility model also includes a support roller, which is supported on a column mounting bracket, and the wheel body of the support roller is in contact with the guide rail mounting bracket.
[0016] The dust collection protective cover for table saw described in this utility model is provided, wherein the column and the telescopic arm are connected by a horizontally arranged rotating bracket; the telescopic arm swings horizontally around the column via the rotating bracket.
[0017] The dust collection protective cover for table saws described in this utility model has a telescopic cantilever consisting of a fixed cantilever and a movable cantilever; both the fixed and movable cantilever are hollow tubular structures; the movable cantilever is fitted inside the fixed cantilever; and the fixed cantilever is arranged on a rotating bracket.
[0018] The dust collection protective cover for table saw described in this utility model has an adjustment mechanism including a fixed bracket one, a fixed bracket two, and a fixed bracket three.
[0019] A fixed bracket 1 is provided on the movable cantilever, and the fixed bracket 1 is connected to a fixed bracket 2. The fixed bracket 2 is provided with a hinge hole that is hinged to one end of a fixed bracket 3. The other end of the fixed bracket 3 is hinged to the movable swing arm. The fixed bracket 3 drives the movable swing arm to rotate horizontally with the hinge hole as the center.
[0020] The position between the fixed bracket and the movable cantilever is fixed by a preset method, matching the position of the table saw blade.
[0021] The dust collection protective cover for a table saw described in this utility model includes a moving swing arm comprising a connecting rod housing, a swing arm handle, a compressed air spring, and an H-shaped connecting rod; one end of the H-shaped connecting rod is hinged to an adjustment mechanism, and the other end of the H-shaped connecting rod is hinged to the swing arm handle; the swing arm handle is connected to the main body of the protective cover.
[0022] One end of the compressed air spring is hinged to the adjusting mechanism, and the other end of the compressed air spring is hinged to the H-shaped connecting rod;
[0023] The connecting rod housing is used to enclose the compressed gas spring, the H-shaped connecting rod, and the hinge end that connects to the adjustment mechanism and the swing arm handle.
[0024] The dust collection protective cover for a table saw described in this utility model includes a cover support, a transparent cover, a material guide block, and rollers. The cover support has an arc-shaped structure with an opening facing downwards, and the arc-shaped structure of the cover support accommodates the saw blade. A transparent cover is located on one side of the cover support, outside the arc-shaped structure of the cover support. The cover support has a dust collection duct inside, with the dust collection end of the duct located on the inner arc surface of the cover support, and the tail end of the duct connected to the pipe body. A material guide block is located at the front end of the cover support, and rollers are located at the bottom end of the material guide block.
[0025] Beneficial effects
[0026] The dust collection protective cover for table saws provided by this utility model meets the needs of efficient dust collection for table saws through the cooperation of powerful dust collection equipment and movable protective cover body.
[0027] The dust collection cover for table saws provided by this utility model can effectively capture some dust when the saw blade rotates and throws it backward or to the side. The semi-enclosed cover structure can also remove fine powder left on the workpiece groove and upper surface after cutting, thus avoiding further contamination of the table surface.
[0028] The dust collection protective cover for table saws provided by this utility model can be adapted to various models of table saw equipment and has multi-directional degree of freedom adjustment function, further enhancing the applicability of the equipment. Attached Figure Description
[0029] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0030] Figure 2 This is a schematic diagram of the sliding mechanism structure of this utility model;
[0031] Figure 3 This is a cross-sectional structural diagram of the sliding mechanism of this utility model;
[0032] Figure 4 This is a schematic diagram of the rotating bracket of this utility model from another perspective.
[0033] Figure 5 This is a schematic diagram of the telescopic arm structure of this utility model;
[0034] Figure 6 This is a schematic diagram of the adjustment mechanism structure of this utility model;
[0035] Figure 7 This is a schematic cross-sectional view of the adjustment mechanism structure of this utility model;
[0036] Figure 8 This is a schematic cross-sectional view of the adjustment mechanism structure of this utility model;
[0037] Figure 9 This is a schematic diagram of the motion swing arm structure of this utility model;
[0038] Figure 10 This is a schematic diagram of the motion swing arm structure of this utility model;
[0039] Figure 11 for Figure 10 A schematic diagram of the cross-sectional structure of AA;
[0040] Figure 12 for Figure 10 Another cross-sectional structural diagram of AA;
[0041] Figure 13 This is a schematic diagram of the main structure of the protective cover of this utility model;
[0042] Figure 14 This is a cross-sectional view of the main body of the protective cover and a schematic diagram of the dust collection path. Detailed Implementation
[0043] To make the objectives and technical solutions of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0044] like Figure 1 As shown: A dust collection protective cover for a table saw includes a sliding mechanism 1, a column 2, a telescopic cantilever 3, an adjustment mechanism 4, a moving swing arm 5, and a protective cover body 6.
[0045] The sliding mechanism 1 is equipped with a column 2, which supports the telescopic cantilever 3. The telescopic end of the telescopic cantilever 3 is equipped with an adjustment mechanism 4, which connects to a moving swing arm 5. A protective cover body 6 is fixedly connected to the moving swing arm 5. The dust collection end of the protective cover body 6 is connected to the telescopic cantilever 3 via a pipe, and the end of the telescopic cantilever 3 is connected to an external dust collection device via a pipe. The protective cover body 6 is a dust collection device that covers the saw blade. Different positions can be selected according to the size, height, and inclination of the saw blade without changing the dust collection effect. Dust collection devices with appropriate functions and power can be selected according to actual requirements and are generally applicable to this device.
[0046] according to Figure 2 , Figure 3The sliding mechanism 1 shown includes a guide rail 11, a guide rail mounting bracket 12, a slider 13, a column mounting bracket 14, a T-slot locking strip 15, a T-slot 16, a handle 17, and a fixing member 18.
[0047] As a moving component, the column mounting bracket 14, more precisely, the column mounting bracket 14 reciprocates along the direction of the guide rail 11;
[0048] The column mounting bracket 14 can be a platform structure, on which are respectively provided a column 2 for fixing and supporting the telescopic cantilever 3, a slider 13 and a T-slot locking strip 15 that cooperate with the guide rail 11.
[0049] Depend on Figure 3 As can be seen, the bottom end of the guide rail mounting bracket 12 is provided with a guide rail 11 that matches the slider 13, and a T-slot 16 that cooperates with the T-slot locking strip 15;
[0050] A handle 17 is connected below the T-slot locking strip 15; after the handle 17 is tightened, the T-slot locking strip and the T-slot 16 can be locked together to achieve the purpose of fixing the column mounting bracket 14.
[0051] The guide rail mounting bracket is fixed to the table saw by the top fixing piece 18, so that no modification is needed for the table saw, which increases the adaptability of this device.
[0052] The support roller 19 is supported on the column mounting bracket 14, and the wheel body of the support roller 19 is in contact with the guide rail mounting bracket 12, which ensures the stability of the column mounting bracket 14 during movement.
[0053] like Figure 4 As shown: The column 2 and the telescopic cantilever 3 are connected by a horizontally arranged rotating bracket 7; this is a conventional rotating bracket mechanism that can provide stable support. A knob handle 21 for locking is added to the structure of the rotating bracket 7 to ensure the positioning of the rotating bracket 7 after rotation.
[0054] like Figure 5 As shown: The telescopic cantilever 3 consists of a fixed cantilever 31 and a movable cantilever 32; both the fixed cantilever 31 and the movable cantilever 32 are hollow tubular structures, which are used to arrange the tube body and play a role in protecting the tube body; the movable cantilever 32 is fitted inside the fixed cantilever 31; the fixed cantilever 31 is arranged on the rotating bracket 7.
[0055] The rotating bracket 7 is connected to the main body of the column 2 via a rotating shaft and a hinge seat. The telescopic cantilever 3 swings horizontally around the rotating shaft of the rotating bracket 7.
[0056] like Figure 6 , Figure 7 , Figure 8As shown: The adjustment mechanism 4 includes a first fixed bracket 41, a second fixed bracket 42, and a third fixed bracket 43; the first fixed bracket 41 is located at the front of the movable cantilever 32, and the first fixed bracket 41 and the second fixed bracket 42 are connected by a horizontal deflection shaft 46. The center line of the second fixed bracket 42 is perpendicular to the center line of the movable cantilever 32; a deflection shaft locking block 47 is provided below the deflection shaft 46 for positioning and locking the deflection shaft 46.
[0057] Fixed bracket 2 42 is provided with a tapered hinge hole 44 that is hinged to one end of fixed bracket 3 43. Fixed bracket 3 43 rotates horizontally around the hinge hole 44. A tapered locking shaft 45 is provided in the tapered hinge hole 44. The knob handle 21 is fixed to the tapered locking shaft 45. By rotating, the tapered locking shaft 45 locks fixed bracket 2 42 and fixed bracket 3 43 together. The other end of fixed bracket 3 43 is hinged to the moving swing arm 5.
[0058] The fixed bracket 41 is fitted onto the movable cantilever 32. The fixed bracket 41 is moved to the preset position of the movable cantilever 32 to ensure that the moving swing arm 5 and the guard body 6 are moved to the preset position of the table saw blade. Then the fixed bracket 41 and the movable cantilever 32 are fixed.
[0059] like Figure 9 , Figure 10 As shown: The motion swing arm 5 includes a connecting rod housing 51, a swing arm handle 52, a compressed gas spring 53, and an H-type connecting rod 54;
[0060] One end of the H-type connecting rod 54 is hinged to the fixed bracket 3 43;
[0061] The other end of the H-shaped connecting rod 54 is hinged to the swing arm handle 52, and the swing arm handle 52 is provided with a locking mechanism; the swing arm handle 52 is connected to the protective cover body 6;
[0062] One end of the compressed gas spring 53 is hinged to the fixed bracket 3 43 of the adjusting mechanism 4, and the other end of the compressed gas spring 53 is hinged to the H-shaped connecting rod 54; the compressed gas spring 53 is used to keep the entire moving swing arm 5 in a certain posture.
[0063] The connecting rod housing 51 is used to enclose the compressed gas spring 53, the H-type connecting rod 54, and the hinge end that connects to the adjusting mechanism 4 and the swing arm handle 52.
[0064] For the specific connection structure between one end of the motion swing arm 5 and the arm handle 52, please refer to [the following text is incomplete and requires further context]. Figure 11 , Figure 12The structural components include an inner connecting rod 100, an outer connecting rod 101, a bearing 102, a rotating shaft 103, a countersunk bolt 104, and a pin 105. The connection is achieved through the mutual cooperation of the inner connecting rod 100, the outer connecting rod 101, the bearing 102, and the rotating shaft 103. The locking structure of the swing arm handle 52 includes a locking block 106, a locking rotating shaft 107, and a locking knob 108. The locking block 106 is located between the inner connecting rod 100 and the swing arm handle 52, and the swing arm handle 52 is locked by the rotation of the locking rotating shaft 107.
[0065] like Figure 13 As shown: The main body 6 of the protective cover includes a protective cover bracket 61, a transparent protective cover 62, a material guide block 63, and a roller 64; the protective cover bracket 61 has an arc-shaped structure with the opening facing downwards, and the arc-shaped structure of the protective cover bracket 61 accommodates the saw blade; a transparent protective cover 62 is provided on one side of the protective cover bracket 61, and is located on the outside of the arc-shaped structure of the protective cover bracket 61; a material guide block 63 is provided at the front end of the protective cover bracket 61, and a roller 64 is provided at the bottom end of the material guide block 63.
[0066] like Figure 14 As shown: The protective cover bracket 61 has a dust collection duct 811 inside the bracket. The dust collection end of the duct 611 is located on the inner arc surface of the protective cover bracket 61. The air inlet of the duct 611 is located at the front end of the protective cover bracket 61. The air outlet of the duct 611 is located at the rear end of the protective cover bracket 61 and is connected to the pipe body. The dust collection path is as shown by the arrow in the figure.
[0067] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A dust collection protective cover for a table saw, characterized in that: It includes a sliding mechanism (1), a column (2), a telescopic cantilever (3), an adjustment mechanism (4), a moving swing arm (5), and a protective cover body (6); The sliding mechanism (1) is provided with a column (2), which is used to support the telescopic cantilever (3); the telescopic end of the telescopic cantilever (3) is provided with an adjustment mechanism (4), which is used to connect the moving swing arm (5); the moving swing arm (5) is fixedly connected to the protective cover body (6); the dust collection end of the protective cover body (6) is connected to the telescopic cantilever (3) through a pipe, and the end of the telescopic cantilever (3) is connected to the external dust collection equipment through a pipe.
2. The dust collection protective cover for a table saw according to claim 1, characterized in that: The sliding mechanism (1) includes a guide rail (11), a guide rail mounting bracket (12), a slider (13), a column mounting bracket (14), a T-slot locking strip (15), a T-slot (16), a handle (17), and a fixing member (18). The column mounting bracket (14) is a moving part that moves along the extension direction of the guide rail mounting bracket (12). The column mounting bracket (14) is provided with a column (2) for fixing and supporting the telescopic cantilever (3), as well as a slider (13) and a T-slot locking strip (15) that cooperate with the guide rail (11). The guide rail mounting bracket (12) is provided with a guide rail (11) that matches the slider (13) and a T-slot (16) that cooperates with the T-slot locking strip (15); The T-groove locking strip (15) passes through the column mounting bracket (14) and is connected to the handle (17); the top of the guide rail mounting bracket (12) is provided with a fixing piece (18).
3. The dust collection protective cover for a table saw according to claim 2, characterized in that: It also includes a support roller (19), which is supported on the column mounting bracket (14), and the wheel body of the support roller (19) is in contact with the guide rail mounting bracket (12).
4. The dust collection protective cover for a table saw according to claim 1 or 2, characterized in that: The column (2) and the telescopic cantilever (3) are connected by a horizontally arranged rotating bracket (7); the rotating bracket (7) drives the telescopic cantilever (3) to swing horizontally.
5. The dust collection protective cover for a table saw according to claim 4, characterized in that: The telescopic cantilever (3) consists of a fixed cantilever (31) and a movable cantilever (32); both the fixed cantilever (31) and the movable cantilever (32) are hollow tubular structures; the movable cantilever (32) is fitted inside the fixed cantilever (31); the fixed cantilever (31) is arranged on the rotating support (7).
6. The dust collection protective cover for a table saw according to claim 1 or 5, characterized in that: The adjustment mechanism (4) includes a first fixed bracket (41), a second fixed bracket (42), and a third fixed bracket (43); A first fixed bracket (41) is provided on the movable cantilever (32), and the first fixed bracket (41) is connected to a second fixed bracket (42). The second fixed bracket (42) is provided with a hinge hole (44) that is hinged to one end of the third fixed bracket (43), and the other end of the third fixed bracket (43) is hinged to the moving swing arm (5); the third fixed bracket (43) drives the moving swing arm (5) to rotate horizontally with the hinge hole (44) as the center; The position between the fixed bracket (41) and the movable cantilever (32) is fixed by a preset method and matches the position of the table saw blade.
7. The dust collection protective cover for a table saw according to claim 1, characterized in that: The aforementioned motion swing arm (5) includes a connecting rod housing (51), a swing arm handle (52), a compressed gas spring (53), and an H-type connecting rod (54); One end of the H-shaped connecting rod (54) is hinged to the adjusting mechanism (4), and the other end of the H-shaped connecting rod (54) is hinged to the swing arm handle (52); the swing arm handle (52) is connected to the protective cover body (6); One end of the compressed air spring (53) is hinged to the adjusting mechanism (4), and the other end of the compressed air spring (53) is hinged to the H-shaped connecting rod (54); The connecting rod housing (51) is used to enclose the compressed gas spring (53), the H-shaped connecting rod (54), and the hinge end with the adjusting mechanism (4) and the swing arm handle (52).
8. The dust collection protective cover for a table saw according to claim 1, characterized in that: Main body of the protective cover The main body (6) of the protective cover includes a protective cover bracket (61), a transparent protective cover (62), a guide block (63), and a roller (64); the protective cover bracket (61) has an arc-shaped structure with the opening facing downwards, and the arc-shaped structure of the protective cover bracket (61) accommodates the saw blade; a transparent protective cover (62) is provided on one side of the protective cover bracket (61), and the transparent protective cover (62) is located on the outside of the arc-shaped structure of the protective cover bracket (61); The protective cover bracket (61) is provided with a dust collection duct (611) inside the bracket. The dust collection end of the duct (611) is located on the inner arc surface of the protective cover bracket (61), and the tail end of the duct (611) is connected to the pipe body. The front end of the protective cover bracket (61) is provided with a material guide block (63), and the bottom end of the material guide block (63) is provided with a roller (64).