Perforating device for fireproof door processing
By integrating a cooling fan and a dust extraction system into the drilling device, the problems of heat accumulation in the drill bit and chip handling are solved, enabling efficient and precise drilling for fire door processing, suitable for fire doors of various sizes.
Patent Information
- Application Number
- CN202520414927.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-11
AI Technical Summary
Existing drilling equipment lacks cooling and dust removal functions in fire door processing, resulting in short drill bit lifespan and low drilling efficiency.
A drilling device with a cooling fan and a dust collection system was designed. The cooling fan absorbs the heat of the drill bit, the dust cover and the dust collection slot collect debris, and the position of the support plate is adjusted by a servo motor to achieve flexible clamping and precise drilling.
It improves the service life and drilling efficiency of drill bits, ensures drilling accuracy and practicality, and is suitable for fire doors of different sizes.
Smart Images

Figure CN223932644U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fire door processing technology, specifically a drilling device for fire door processing. Background Technology
[0002] Fire doors are doors that can meet the requirements of fire resistance stability, integrity, and heat insulation within a certain period of time. They are fire-resistant partitions installed in fire compartments, evacuation stairwells, vertical shafts, and other similar locations, possessing a certain degree of fire resistance. During the manufacturing process of fire doors, different shaped slots need to be pre-drilled for the installation of accessories, thus requiring the use of drilling equipment.
[0003] Existing drilling devices only use a high-speed rotating drill bit to drill holes in fire doors, and do not have cooling and dust removal capabilities. Prolonged use will affect the lifespan of the drill bit and reduce drilling efficiency. Therefore, it is necessary to design a drilling device for fire door processing to solve the above problems. Utility Model Content
[0004] The purpose of this invention is to provide a drilling device for processing fire doors, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a drilling device for processing fire doors, comprising a housing, a support frame fixedly connected to the upper end of the housing, limiting clamping components provided on the front and rear inner sides of the housing, an adjustment mechanism provided in the inner cavity of the housing, the support frame being connected to a movable work box via two sets of electric telescopic rods, and a dust removal drilling device provided inside the movable work box.
[0006] Preferably, the dust removal and drilling device includes a rotating motor driven by a rotating motor, which is fixedly installed on the top of the movable work box. The output shaft of the rotating motor passes through the top surface of the movable work box and is connected to a rotating rod. A drilling bit is detachably installed on the end of the rotating rod away from the rotating motor under the connection of the mounting shaft. The drilling bit operates in a movable through hole, which is dug in the middle of the bottom of the movable work box. A dust cover is connected to the lower end of the movable through hole.
[0007] Preferably, the adjustment mechanism is driven by a servo motor, which is fixedly installed on the outer side of the housing. The output shaft of the servo motor passes through the side wall of the housing and is connected to a bidirectional threaded screw. The other end of the bidirectional threaded screw is rotatably installed on the other side wall of the housing. Two sets of threaded sliders are fitted on the bidirectional threaded screw. A connecting rod is welded to the top of each set of threaded sliders. A support plate is movably installed on the other end of the connecting rod. A friction pad is adhered to the upper surface of the support plate.
[0008] Preferably, the limiting clamping assembly includes two sets of clamping plates and two sets of buffer pads. The two sets of buffer pads are adhered to the opposite inner sides of the two sets of clamping plates. Each set of clamping plates has two sets of spring rods installed on the side away from the buffer pads. The spring rods are fixedly installed between the clamping plate and the inner wall of the box.
[0009] Preferably, the mobile work box has a cooling fan and a dust collection slot at its inner ends, respectively. The cooling fan is fixedly installed on one inner wall of the mobile work box, and the dust collection slot is located on the other inner wall of the mobile work box. A telescopic hose is provided through the connection end between the dust collection slot and the mobile work box. The other end of the telescopic hose extends into the inner cavity of the dust collection box. A dust pump is installed at the port of the telescopic hose near the dust collection slot. The dust collection box is fixed to one corner of the inner side of the support frame.
[0010] Preferably, a fireproof door material plate is placed above the friction pad, and the other side of the fireproof door material plate is in contact with the bottom of the dust cover.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] 1. By installing a cooling fan inside the mobile work box, the heat released by the drill bit during continuous drilling can be absorbed and released in a timely manner. Furthermore, with the connection between the dust cover and the dust suction slot, the dust pump can be activated to collect and process the debris generated during drilling in a timely manner, ensuring drilling accuracy, increasing the service life of the drill bit, and improving drilling efficiency.
[0013] 2. By starting the servo motor, the screw rod is rotated, which allows for flexible adjustment of the center of gravity of the two sets of support plates. With the cooperation of the limit clamping components, the device is applicable to drilling fire doors of different sizes, increasing its practicality. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a cross-sectional view of the overall structure of this utility model;
[0016] Figure 3 This is a top view of a partial structure of the present invention;
[0017] Figure 4 This is an enlarged view of the structure at point A of this utility model.
[0018] In the diagram: 1. Box body, 2. Fireproof door material panel, 3. Clamping plate, 4. Support frame, 5. Mobile work box, 6. Dust collection box, 7. Telescopic hose, 8. Servo motor, 9. Rotary motor, 10. Electric telescopic rod, 11. Two-way threaded screw, 12. Threaded slider, 13. Connecting rod, 14. Support plate, 15. Friction pad, 16. Rotating rod, 17. Drill bit, 18. Air cooler, 19. Dust collection slot, 20. Dust pump, 21. Buffer pad, 22. Spring rod, 23. Dust cover, 24. Movable through hole, 25. Mounting shaft. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] Example 1
[0021] Please refer to Figure 1-4 As shown, this utility model provides a drilling device for processing fire doors, including a housing 1. A support frame 4 is fixedly connected to the upper end of the housing 1. Limiting clamping components are provided on the front and rear inner sides of the housing 1. An adjustment mechanism is provided in the inner cavity of the housing 1 to flexibly adjust the center of gravity position of the two sets of support plates. With the cooperation of the limiting clamping components, the device is applicable to drilling fire doors of different sizes, increasing its practicality. The support frame 4 is connected to a movable work box 5 through two sets of electric telescopic rods 10. The movable work box 5 is equipped with a dust removal drilling device to ensure drilling accuracy, increase the service life of the drilling drill bit 17, and improve drilling efficiency.
[0022] Specifically, the dust removal and drilling device includes a rotating motor 9, which is fixedly installed at the top of the movable work box 5. The output shaft of the rotating motor 9 passes through the top surface of the movable work box 5 and is connected to a rotating rod 16. A drilling bit 17 is detachably installed at the end of the rotating rod 16 away from the rotating motor 9 under the connection of the mounting shaft 25. The drilling bit 17 operates in a movable through hole 24, which is dug in the middle of the bottom of the movable work box 5. A dust cover 23 is connected to the lower end of the movable through hole 24. Cooling fans 18 are respectively installed at both ends of the inner side of the movable work box 5. The dust collection port 19 and the air cooler 18 are fixedly installed on one side of the inner wall of the mobile work box 5. The dust collection port 19 is located on the other side of the inner wall of the mobile work box 5. A telescopic hose 7 is provided through the connection end between the dust collection port 19 and the mobile work box 5. The other end of the telescopic hose 7 extends into the inner cavity of the dust collection box 6. A dust pump 20 is installed at the port of the telescopic hose 7 near the dust collection port 19. The dust collection box 6 is fixed to one corner of the inner side of the support frame 4. The setting of the air cooler 18 allows the heat released by the drill bit 17 during continuous drilling to be absorbed and released in a timely manner.
[0023] The adjustment mechanism is driven by a servo motor 8, which is fixedly installed on the outer side of the housing 1. The output shaft of the servo motor 8 passes through the side wall of the housing 1 and is connected to a bidirectional threaded screw 11. The other end of the bidirectional threaded screw 11 is rotatably installed on the other side wall of the housing 1. Two sets of threaded sliders 12 are installed on the bidirectional threaded screw 11. A connecting rod 13 is welded to the top of each set of threaded sliders 12. A support plate 14 is movably installed on the other end of the connecting rod 13. A friction pad 15 is adhered to the upper surface of the support plate 14. A fireproof door material plate 2 is placed on top of the friction pad 15. The other side of the fireproof door material plate 2 is in contact with the bottom of the dust cover 23. By starting the servo motor 8, the threaded screw 11 is rotated, thereby flexibly adjusting the center of gravity position of the two sets of support plates 14.
[0024] In addition, the limiting clamping assembly includes two sets of clamping plates 3 and two sets of buffer pads 21. The two sets of buffer pads 21 are bonded to the opposite inner sides of the two sets of clamping plates 3. Each set of clamping plates 3 is equipped with two sets of spring rods 22 on the side away from the buffer pads 21. The spring rods 22 are fixedly installed between the clamping plates 3 and the inner wall of the box 1, which increases the buffering effect of the limiting clamping assembly on the fire door material plate 2.
[0025] Working principle: When the drilling device is working, the servo motor 8 is started. According to the shape and size of the fire door material plate 2, the distance between the two sets of threaded sliders 12 is adjusted to accurately support and place fire door material plates 2 of different sizes. The clamping plate 3 can fix the position of the fire door material plate 2 to ensure the stability of the fire door material plate 2. Then, by adjusting the working state of the electric telescopic rod 10, the dust cover 23 is brought into contact with the surface of the fire door material plate 2. Then, by starting the rotating motor 9, the drilling bit 17 is rotated to drill holes. At the same time, the dust cover 23 is connected to the moving work box 5, so that the debris generated during the drilling process can enter the dust collection box 6 in time through the dust collection slot 19 to ensure the accuracy of the drilling. Meanwhile, the cooling fan 18 can release and cool the heat generated by the high-speed operation of the drilling bit 17 in time, and improve the service life of the drilling bit 17.
[0026] The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0027] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A drilling device for processing fire doors, comprising a housing (1), characterized in that: The upper end of the box (1) is fixedly connected to a support frame (4). The front and rear inner sides of the box (1) are provided with limiting clamping components. The inner cavity of the box (1) is provided with an adjustment mechanism. The support frame (4) is connected to the mobile work box (5) through two sets of electric telescopic rods (10). The mobile work box (5) is provided with a dust removal and drilling device.
2. The drilling device for processing fire doors according to claim 1, characterized in that: The dust removal and drilling device includes a rotating motor (9) driven by a rotating motor (9), which is fixedly installed on the top of the mobile work box (5). The output shaft of the rotating motor (9) passes through the top surface of the mobile work box (5) and is connected to a rotating rod (16). A drilling bit (17) is detachably installed on the end of the rotating rod (16) away from the rotating motor (9) under the connection of the mounting shaft (25). The drilling bit (17) operates in a movable through hole (24), which is dug in the middle of the bottom of the mobile work box (5). The lower end of the movable through hole (24) is connected to a dust cover (23).
3. The drilling device for processing fire doors according to claim 2, characterized in that: The adjustment mechanism is driven by a servo motor (8), which is fixedly installed on the outer side of the housing (1). The output shaft of the servo motor (8) passes through the side wall of the housing (1) and is connected to a bidirectional threaded screw (11). The other end of the bidirectional threaded screw (11) is rotatably installed on the other side wall of the housing (1). Two sets of threaded sliders (12) are fitted on the bidirectional threaded screw (11). A connecting rod (13) is welded to the top of each set of threaded sliders (12). A support plate (14) is movably installed on the other end of the connecting rod (13). A friction pad (15) is adhered to the upper surface of the support plate (14).
4. The drilling device for processing fire doors according to claim 1, characterized in that: The limiting clamping assembly includes two sets of clamping plates (3) and two sets of buffer pads (21). The two sets of buffer pads (21) are bonded to the opposite inner sides of the two sets of clamping plates (3). Each set of clamping plates (3) has two sets of spring rods (22) installed on the side away from the buffer pads (21). The spring rods (22) are fixedly installed between the clamping plates (3) and the inner wall of the box (1).
5. A drilling device for processing fire doors according to claim 2, characterized in that: The inner ends of the mobile work box (5) are respectively provided with a cold air blower (18) and a dust suction slot (19). The cold air blower (18) is fixedly installed on one side of the inner wall of the mobile work box (5). The dust suction slot (19) is located on the other side of the inner wall of the mobile work box (5). A telescopic hose (7) is provided through the connection end between the dust suction slot (19) and the mobile work box (5). The other end of the telescopic hose (7) extends into the inner cavity of the dust suction box (6). A dust suction pump (20) is installed at the port of the telescopic hose (7) near the dust suction slot (19). The dust suction box (6) is fixed to one corner of the inner side of the support frame (4).
6. The drilling device for processing fire doors according to claim 3, characterized in that: A fireproof door material plate (2) is placed above the friction pad (15), and the other side of the fireproof door material plate (2) is in contact with the bottom of the dust cover (23).