Closed safety dustproof device of woodworking machine tool

The design of the enclosed safety dustproof device solves the problems of dust diffusion and safety hazards of woodworking machine tools, achieves efficient dust removal and safe operation, and improves the quality of the working environment for woodworking.

CN224144905UActive Publication Date: 2026-04-21SICHUAN QINGCHENG MACHINERY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN QINGCHENG MACHINERY
Filing Date
2025-05-20
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

The existing dust collection devices on woodworking machine tools are ineffective in dust removal, resulting in serious dust dispersion and safety hazards. Furthermore, the interlocking control and lighting of the protective devices are insufficient, affecting operational safety and efficiency.

Method used

A closed safety dustproof device was designed, which uses plexiglass material and has multiple dust suction ports and chip removal ports. Combined with limit switches and machine tool power supply linkage, it ensures that processing is only started when the protective door is completely closed. It also has a built-in lighting device and optimizes the dustproof structure and safety interlock system.

Benefits of technology

It significantly improves dust removal efficiency, reduces dust diffusion, ensures operator safety, provides sufficient lighting conditions, and reduces safety hazards and operational difficulties.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model relates to a closed type safety dustproof device of a woodworking machine tool in the field of wood processing. The closed type safety dustproof device comprises a support, a lighting device, a closed type dustproof structure, a dust removal device, an access door device and a safety sliding door device. The closed dustproof structure comprises organic glass, a metal plate device and a door fence; the dust removal device comprises a dust suction port and a scrap removal port; the access door device comprises an access door and a safety device; the safety sliding door device comprises an outer side sliding door, an inner side sliding door and a travel switch. The dustproof device is provided with a good dustproof effect and a reliable safety device, the working environment of operators in the woodworking machining center is improved, the body health of the operators is guaranteed, the personal safety of the workers in the woodworking machining center is improved, and potential safety hazards are reduced.
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Description

Technical Field

[0001] This utility model relates to the field of wood processing, and in particular to a closed safety dustproof device for woodworking machine tools. Background Technology

[0002] Currently, woodworking machining centers generally use fixed dust collection hoods for dust collection. However, due to the complex movement trajectory of the spindle, the dust collection hood is prone to motion interference with the workpiece and worktable, resulting in a significant reduction in dust removal efficiency. During high-speed milling, the dust particles generated by the cutting tool are of uneven size and splash direction is not fixed. Existing dust collection devices are unable to dynamically capture the dust source, and a large amount of dust and wood chips quickly spread into the workshop environment, seriously polluting the work area and endangering the health of operators.

[0003] Traditional safety protection devices still have obvious shortcomings:

[0004] 1. There is a delay in the interlock control between the opening and closing status of the protective cover and the machine tool, which means that there is still a risk of the spindle starting accidentally when the protective door is not fully closed;

[0005] 2. The safety interlock system is not effectively linked to the workbench moving mechanism, posing a safety hazard that could cause an operator to accidentally enter a dangerous area outside of a processing station;

[0006] 3. The use of single-point contact sensors to monitor the status of the protective door is prone to misjudgment under equipment vibration or dust interference, affecting the reliability of protection;

[0007] 4. Conventional protective devices are mostly enclosed metal structures with insufficient internal lighting, requiring operators to rely on external light sources for observation during operations;

[0008] 5. The unreasonable layout of the top dust suction port and the bottom dust removal design can easily create dead airflow corners and cause wood chips to accumulate, further reducing dust removal efficiency. Utility Model Content

[0009] The purpose of this utility model is to address the dust and safety issues encountered in wood processing in the prior art by proposing a closed-loop safety dustproof device for woodworking machine tools.

[0010] A closed safety dustproof device for a woodworking machine tool includes a bracket, a lighting device, a closed dustproof structure, a dust removal device, an inspection door device, and a safety sliding door device;

[0011] The enclosed dustproof structure includes plexiglass, sheet metal components, and door panels;

[0012] The dust removal device includes a dust suction port and a chip removal port;

[0013] The access control device includes an access door and a safety device;

[0014] The safety sliding door device includes an outer sliding door, an inner sliding door, and a limit switch;

[0015] The lighting device is located at the top inside the enclosed safety dustproof device. The enclosed dustproof structure is built on a bracket. The maintenance door device is located on both sides of the bracket. The safety sliding door device is located on the front of the outside of the enclosed safety dustproof device.

[0016] The lighting device, dust suction port, chip removal port, and plexiglass are all connected and fixed to the bracket;

[0017] The bracket serves to support the overall structure of the enclosed safety and dustproof device.

[0018] The lighting device serves to illuminate the interior of the enclosed safety and dustproof device.

[0019] The enclosed dustproof structure serves to seal the processing environment of the woodworking machine tool and prevent dust from flying around.

[0020] Among them, the maintenance door device and the safety sliding door device ensure work safety.

[0021] Furthermore, a closed safety dustproof device for a woodworking machine tool, wherein the dust suction port is located at the top of the closed safety dustproof device, and the chip removal port is located on the back of the closed safety dustproof device.

[0022] Several dust suction ports and chip removal ports are connected and fixed to the bracket by screws;

[0023] The sawdust removal port is convenient for cleaning up accumulated sawdust and larger pieces of wood.

[0024] Furthermore, a closed safety dustproof device for a woodworking machine tool, wherein the sheet metal device includes side sheet metal, back sheet metal, left connecting sheet metal, right connecting sheet metal, left front connecting sheet metal, and right front connecting sheet metal.

[0025] The gate includes a side gate, a left front gate, a right front gate, a left guide rail gate, and a right guide rail gate;

[0026] The left connecting sheet metal is located at the left front end of the enclosed safety dustproof device;

[0027] The right-side connecting sheet metal is located at the front right side of the enclosed safety dustproof device.

[0028] The left front connecting sheet metal is located on the front left side of the enclosed safety dustproof device;

[0029] The right front connecting sheet metal is located on the front right side of the exterior of the enclosed safety dustproof device;

[0030] The side gates are located on both sides outside the enclosed safety and dustproof device;

[0031] The side door panels are located at the top and bottom ends of the inspection door;

[0032] The left front door rail is located on the upper left side of the front end of the enclosed safety dustproof device.

[0033] The right front door railing is located on the upper right side of the front end of the enclosed safety dustproof device.

[0034] The left and right guide rail gates are located on the lower front side of the exterior of the closed safety dustproof device.

[0035] Furthermore, a closed safety dustproof device for a woodworking machine tool, wherein the side door is connected to the bracket by screws, the side door is connected to the left side connecting sheet metal and the right side connecting sheet metal by bolts respectively, and the top of the side door at the upper end of the inspection door is connected to the bracket by screws.

[0036] The left and right front door panels are connected by bolts, and the top surfaces of the left and right front door panels are connected to the bracket by screws.

[0037] The left and right guide rail gates are connected by bolts.

[0038] Furthermore, in a closed safety dustproof device for a woodworking machine tool, the side of the left connecting sheet metal is connected to the left front connecting sheet metal and the left front door frame by bolts, and the top surface of the left connecting sheet metal is connected to the bracket by screws.

[0039] The side of the right connecting sheet metal is connected to the right front connecting sheet metal and the right front door frame by bolts, and the top surface of the right connecting sheet metal is connected to the bracket by screws.

[0040] The top surface of the left front connecting sheet metal is connected to the left front door frame by bolts, and the side surface of the left front connecting sheet metal is connected to the left guide rail door frame by bolts.

[0041] The top surface of the right front connecting sheet metal is bolted to the right front door frame, and the side surface of the right front connecting sheet metal is bolted to the right guide rail door frame.

[0042] Furthermore, a closed safety dustproof device for a woodworking machine tool, wherein guide rails are provided on the left guide rail door and the right guide rail door;

[0043] The outer and inner sliding doors are equipped with auxiliary guide structures.

[0044] The outer sliding door is mounted on the guide rail of the left guide rail door frame;

[0045] The inner sliding door is installed on the guide rail of the right guide rail door frame;

[0046] The auxiliary guide structure is installed above the outer sliding door and the inner sliding door;

[0047] The limit switches are respectively connected to the left front door and the right front door via bolts;

[0048] The auxiliary guide structure serves to provide auxiliary guidance when moving the sliding door.

[0049] Furthermore, a closed safety dustproof device for a woodworking machine tool, wherein the maintenance door is connected to a bracket via a hinge;

[0050] The safety device is electrically connected to the machine tool power supply, and the safety device controls the opening and closing of the maintenance door.

[0051] Furthermore, a closed safety dustproof device for a woodworking machine tool, wherein the plexiglass is mounted on a support;

[0052] Several pieces of plexiglass are respectively installed on the front top, rear top sides, top of both sides, and top of the back of the enclosed safety dustproof device.

[0053] Furthermore, a closed safety dustproof device for a woodworking machine tool, wherein the limit switch is electrically connected to the machine tool power supply, and the limit switch controls whether the machine tool is working.

[0054] Furthermore, a closed-loop safety dustproof device for a woodworking machine tool, wherein the dust suction port is connected to a dust suction pipe;

[0055] The lighting unit is located at the top inside the enclosed safety and dustproof device and is connected to the bracket by screws.

[0056] The beneficial effects of this utility model are:

[0057] 1. Anti-collision dust collection design: By optimizing the structure and layout of the dust collection hood to match the spindle's motion trajectory, interference with the workpiece and worktable is avoided. At the same time, combined with multiple dust collection ports to dynamically capture dust, it effectively solves the problems of unpredictable wood chip splash direction and rapid dust diffusion during high-speed milling, significantly improving dust removal efficiency and reducing air pollution in the workshop.

[0058] 2. Safety interlock control: The limit switch is linked to the machine tool power supply to ensure that the limit switch is triggered when the protective door is completely closed, and the worktable can start processing; the power is cut off immediately when the door is opened, which forces the safe logic of working when the door is closed and stopping when the door is open, eliminating the safety hazard of the operator accidentally entering the dangerous area.

[0059] 3. Optimized light transmission and illumination: The enclosed dustproof device uses highly transparent organic glass material, combined with internal lighting, to ensure sufficient and natural light in the work area, avoiding the problem of insufficient internal lighting caused by traditional metal shields, and improving operational visibility.

[0060] 4. Improved dust removal structure: The top of the device is equipped with multiple dust suction ports connected to the dust suction pipes, and the bottom is designed with multiple dust collection ports to optimize the collection path of sawdust and dust, reduce airflow dead zones, facilitate the quick cleaning of accumulated sawdust, and prevent secondary dust generation. Attached Figure Description

[0061] Figure 1 This is a three-dimensional rear view of a closed-type safety dustproof device.

[0062] Figure 2 This is a three-dimensional front view of a closed-type safety dustproof device.

[0063] Figure 3 This is a structural diagram of the support structure.

[0064] Figure 4 This is a front view of a closed-type safety dustproof device.

[0065] Figure 5 CC is the front sectional view of the enclosed safety dustproof device.

[0066] Figure 6 Left view of a closed safety dustproof device.

[0067] Figure 7 BB is a cross-sectional view of the left side of the enclosed safety dustproof device.

[0068] Figure 8 AA is a front sectional view of a closed safety dustproof device.

[0069] In the diagram, 1-bracket, 2-lighting device, 3-plexiglass, 4-dust suction port, 5-chip removal port, 6-inspection door, 7-safety device, 8-outer sliding door, 9-inner sliding door, 10-limit switch, 11-side sheet metal, 12-back sheet metal, 13-left side connecting sheet metal, 14-right side connecting sheet metal, 15-left front connecting sheet metal, 16-right front connecting sheet metal, 17-side door rail, 18-left front door rail, 19-right front door rail, 20-left guide rail door rail, 21-right guide rail door rail, 22-guide rail, 23-auxiliary guide structure. Detailed Implementation

[0070] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0071] As attached Figures 1-2 As shown, a closed safety dustproof device for a woodworking machine tool includes a bracket 1, a lighting device 2, a closed dustproof structure, a dust removal device, an inspection door device, and a safety sliding door device.

[0072] The enclosed dustproof structure includes plexiglass 3, sheet metal components, and door panels;

[0073] The dust removal device includes a suction port 4 and a chip removal port 5;

[0074] The access control device includes an access door 6 and a safety device 7;

[0075] The safety sliding door device includes an outer sliding door 8, an inner sliding door 9, and a limit switch 10;

[0076] The lighting device 2 is located at the top inside the enclosed safety dustproof device. The enclosed dustproof structure is built on the bracket 1. The maintenance door device is located on both sides of the bracket 1. The safety sliding door device is located on the front of the outside of the enclosed safety dustproof device.

[0077] The lighting device 2, the dust suction port 4, the chip removal port 5, and the plexiglass are all connected and fixed to the bracket 1.

[0078] The dust suction port 4 is located on the top of the enclosed safety dustproof device, and the chip removal port 5 is located on the back of the enclosed safety dustproof device.

[0079] Several suction ports 4 and chip removal ports 5 are connected and fixed to the bracket 1 by screws.

[0080] As attached Figures 2-4 As shown, a closed safety dustproof device for a woodworking machine tool includes a side sheet metal 11, a back sheet metal 12, a left connecting sheet metal 13, a right connecting sheet metal 14, a left front connecting sheet metal 15, and a right front connecting sheet metal 16.

[0081] The gate includes a side gate 17, a left front gate 18, a right front gate 19, a left guide rail gate 20, and a right guide rail gate 21;

[0082] The left connecting sheet metal 13 is located at the left front end outside the enclosed safety dustproof device;

[0083] The right-side connecting sheet metal 14 is located at the front right side outside the enclosed safety dustproof device;

[0084] The left front connecting sheet metal 15 is located on the front left side of the enclosed safety dustproof device;

[0085] The right front connecting sheet metal 16 is located on the front right side of the enclosed safety dustproof device;

[0086] The side door panels 17 are located on both sides outside the enclosed safety and dustproof device;

[0087] Side door panels 17 are located at the bottom of both sides of the bracket 1;

[0088] The left front door railing 18 is located on the upper left side of the front end of the enclosed safety dustproof device;

[0089] The right front door railing 19 is located on the upper right side of the front end of the enclosed safety dustproof device;

[0090] The left guide rail gate 20 and the right guide rail gate 21 are located on the lower front side of the outside of the closed safety dustproof device.

[0091] The side door 17 is connected to the bracket 1 by screws. The side door 17 is connected to the left connecting sheet metal 13 and the right connecting sheet metal 14 by bolts. The top of the side door 17 at the upper end of the inspection door 6 is connected to the bracket 1 by screws.

[0092] The left front door frame 18 and the right front door frame 19 are connected by bolts, and the top surfaces of the left front door frame 18 and the right front door frame 19 are connected to the bracket 1 by screws.

[0093] The left guide rail gate 20 and the right guide rail gate 21 are connected by bolts.

[0094] The side of the left connecting sheet metal 13 is connected to the left front connecting sheet metal 15 and the left front door frame 18 by bolts, and the top surface of the left connecting sheet metal 13 is connected to the bracket 1 by screws.

[0095] The side of the right connecting sheet metal 14 is connected to the right front connecting sheet metal 16 and the right front door frame 19 by bolts, and the top surface of the right connecting sheet metal 14 is connected to the bracket 1 by screws.

[0096] The top surface of the left front connecting sheet metal 15 is connected to the left front door frame 18 by bolts, and the side of the left front connecting sheet metal 15 is connected to the left guide rail door frame 20 by bolts.

[0097] The top surface of the right front connecting sheet metal 16 is connected to the right front door frame 19 by bolts, and the side surface of the right front connecting sheet metal 16 is connected to the right guide rail door frame 21 by bolts.

[0098] As attached Figures 5-7 As shown, a closed safety dustproof device for a woodworking machine tool is provided with guide rails 22 on the left guide rail door 20 and the right guide rail door 21.

[0099] The outer sliding door 8 and the inner sliding door 9 are equipped with auxiliary guide structures 23;

[0100] The outer sliding door 8 is mounted on the guide rail 22 of the left guide rail door frame 20;

[0101] The inner sliding door 9 is installed on the guide rail 22 of the right guide rail door frame 21;

[0102] The auxiliary guide structure 23 is installed above the outer sliding door 8 and the inner sliding door 9;

[0103] The limit switches are respectively connected to the left front door frame 18 and the right front door frame 19 by bolts.

[0104] The access door 6 is connected to the bracket 1 via hinges;

[0105] Safety device 7 is electrically connected to the machine tool power supply, and the safety device controls the opening and closing of maintenance door 6.

[0106] As attached Figure 3 As shown, a closed safety dustproof device for a woodworking machine tool is provided, with plexiglass 3 mounted on a support 1;

[0107] Several plexiglass pieces 3 are respectively installed on the front top, rear top sides, two side tops, and back top of the enclosed safety dustproof device.

[0108] Limit switch 10 is electrically connected to the machine tool power supply, and limit switch 10 controls whether the machine tool is working.

[0109] As attached Figure 8 As shown, a closed safety dustproof device for a woodworking machine tool has a dust suction port 4 connected to a dust suction pipe.

[0110] The lighting device 2 is located at the top inside the enclosed safety dustproof device and is connected to the bracket 1 by screws.

[0111] A closed-loop safety dustproof device for woodworking machine tools, the working principle of which is as follows:

[0112] Limit switch 10 is electrically connected to the machine tool power supply, and the limit switches 10 on both sides control whether the worktable on both sides can work:

[0113] When the inner sliding door 9 is closed, the limit switch 10 is triggered so that the worktable can process data.

[0114] When the inner sliding door 9 is not closed, the limit switch 10 is not triggered. If the worktable is currently processing or about to start processing, the machine tool will stop processing and issue an alarm.

[0115] It conforms to the working logic that the workbench can only work when the door is closed and stops when the door is open, preventing operator injury from working in a closed, dustproof environment and improving the safety of woodworking machining centers.

[0116] Safety device 7 is connected to the machine tool power supply. When power is off, the left and right inspection doors 6 are closed, preventing entry and exit. When power is on, safety device 7 opens and closes the doors. When safety device 7 is opened, the machine tool stops working, allowing workers to enter the enclosed safety dustproof device. When safety device 7 is closed, the machine tool operates normally, preventing workers from entering the enclosed safety dustproof device. This ensures that the machine tool stops working when the operator enters the enclosed safety dustproof device, reducing safety hazards and improving the safety of the woodworking machining center.

[0117] The enclosed dustproof device has multiple pieces of plexiglass 3 on the top and sides, which have good light transmission. In well-lit environments, the light inside the enclosed safety dustproof device is more natural and bright. Even if the ambient light conditions are not ideal, the enclosed dustproof device has a lighting unit 2 inside to provide good lighting.

[0118] The device has multiple suction ports 4 at the top for connecting to a suction pipe, and multiple chip removal ports 5 at the bottom for cleaning up accumulated wood chips and larger pieces of wood.

[0119] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A closed safety dust extraction device for a woodworking machine, characterised in that, The utility model relates to a dustproof and dust-removing device for the electronic equipment, including support (1), lighting device (2), closed dustproof structure, dust-removing device, overhaul door device and safe sliding door device, The closed dustproof structure includes organic glass (3), sheet metal device, door bar, The dust-removing device includes dust suction port (4) and scrap removal port (5), The overhaul door device includes overhaul door (6) and safety device (7), The safe sliding door device includes outer side sliding door (8), inner side sliding door (9), travel switch (10), The lighting device (2) is located at the top inside the closed safety dustproof device, the closed dustproof structure is built on the support (1), the overhaul door device is arranged on both sides of the support (1), and the safe sliding door device is arranged on the front outside the closed safety dustproof device, The lighting device (2), dust suction port (4), scrap removal port (5) and organic glass are all connected and fixed with the support (1).

2. A safety guard for woodworking machines as claimed in claim 1, characterized in that The dust suction port (4) is arranged at the top outside the closed safety dustproof device, and the scrap removal port (5) is located at the back outside the closed safety dustproof device, The dust suction port (4) and the scrap removal port (5) are connected and fixed with the support (1) through screws.

3. A safety guard for woodworking machines according to claim 1, characterized in that The sheet metal device includes side sheet metal (11), back sheet metal (12), left side connecting sheet metal (13), right side connecting sheet metal (14), left front connecting sheet metal (15) and right front connecting sheet metal (16), The door bar includes side door bar (17), left front door bar (18), right front door bar (19), left guide rail door bar (20) and right guide rail door bar (21), The left side connecting sheet metal (13) is located at the left front end outside the closed safety dustproof device, The right side connecting sheet metal (14) is located at the right front end outside the closed safety dustproof device, The left front connecting sheet metal (15) is located at the left side of the front end outside the closed safety dustproof device, The right front connecting sheet metal (16) is located at the right side of the front end outside the closed safety dustproof device, The side door bar (17) is located at both sides outside the closed safety dustproof device, The side door bar (17) is arranged at both ends of the overhaul door (6), The left front door bar (18) is located at the left upper side of the front end outside the closed safety dustproof device, The right front door bar (19) is located at the right upper side of the front end outside the closed safety dustproof device, The left guide rail door bar (20) and the right guide rail door bar (21) are located below the front side outside the closed safety dustproof device.

4. A safety guard for woodworking machines according to claim 3, characterized in that The side door bar (17) is connected with the support (1) through screws, the side door bar (17) is connected with the left side connecting sheet metal (13) and the right side connecting sheet metal (14) through bolts respectively, and the top of the side door bar (17) at the upper end of the overhaul door (6) is connected with the support (1) through screws; The left front door bar (18) and the right front door bar (19) are connected through bolts, and the top surfaces of the left front door bar (18) and the right front door bar (19) are connected with the support (1) through screws; The left guide rail door bar (20) and the right guide rail door bar (21) are connected through bolts.

5. A safety guard for woodworking machines according to claim 3, characterized in that The side of the left connecting sheet metal (13) is bolted with the left front connecting sheet metal (15) and the left front door bar (18) respectively, and the top of the left connecting sheet metal (13) is screwed with the bracket (1); The side of the right connecting sheet metal (14) is bolted with the right front connecting sheet metal (16) and the right front door bar (19) respectively, and the top of the right connecting sheet metal (14) is screwed with the bracket (1); The top of the left front connecting sheet metal (15) is bolted with the left front door bar (18), and the side of the left front connecting sheet metal (15) is bolted with the left guide rail door bar (20); The top of the right front connecting sheet metal (16) is bolted with the right front door bar (19), and the side of the right front connecting sheet metal (16) is bolted with the right guide rail door bar (21).

6. A safety guard for woodworking machines according to claim 3, characterized in that The left guide rail door bar (20) and the right guide rail door bar (21) are provided with guide rails (22); The outer side sliding door (8) and the inner side sliding door (9) are provided with auxiliary guide structures (23); The outer side sliding door (8) is arranged on the guide rail (22) of the left guide rail door bar (20); The inner side sliding door (9) is arranged on the guide rail (22) of the right guide rail door bar (21); The auxiliary guide structures (23) are arranged above the outer side sliding door (8) and the inner side sliding door (9); The travel switches (10) are bolted with the left front door bar (18) and the right front door bar (19) respectively.

7. A closed safety dust-extraction device for a wood-working machine according to claim 1, characterized in that The access door (6) is connected with the bracket (1) through a hinge; The safety device (7) is electrically connected with the machine tool power supply, and controls the opening and closing of the access door (6).

8. A safety guard for woodworking machines according to claim 1, characterized in that The organic glass (3) is built on the bracket (1); The organic glasses (3) are arranged on the front top, the back top, the top of the two sides, and the top of the back of the outside of the enclosed safety dustproof device.

9. A closed safety dust-extraction device for a wood-working machine according to claim 1, characterized in that The travel switches (10) are electrically connected with the machine tool power supply, and control whether the machine tool works.

10. A closed safety dust-extraction device for a wood-working machine according to claim 1, characterized in that The dust suction port (4) is connected with a dust suction pipe. The lighting device (2) is located at the top inside the enclosed safety dustproof device, and is connected with the bracket (1) through a screw.