Portable constructional engineering steel structure drilling device
By introducing a slide rail and gear meshing structure into the portable drilling device, the steel is firmly clamped and precisely aligned, solving the slippage and offset problems of traditional devices, improving drilling efficiency and reducing the risk of rework.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG HONGDING DADING INTELLIGENT TECH CO LTD
- Filing Date
- 2025-06-17
- Publication Date
- 2026-05-19
AI Technical Summary
Traditional portable drilling devices are prone to slippage and displacement when drilling steel. Manual clamping requires repeated adjustments, making it difficult to quickly align with the preset hole position. Additional auxiliary fixing tools are often required, resulting in low on-site operating efficiency and increased rework risk.
A portable drilling device for steel structures in building engineering is designed. It adopts a slide rail and gear meshing structure. The rotating block drives the threaded rod to move the clamping plate to achieve firm clamping. The gear and rack meshing achieves precise alignment. Combined with an adjustable fixed frame and a dust collection system, the clamping stability and drilling accuracy are improved.
It effectively solves the problems of slippage and offset due to unstable clamping, avoids manual adjustment and the use of auxiliary tools, significantly improves drilling positioning efficiency and reduces the risk of rework.
Smart Images

Figure CN224254255U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel structure drilling, and in particular to a portable steel structure drilling device for building engineering. Background Technology
[0002] Common steel structure drilling equipment is designed specifically for on-site steel structure processing. It has high-precision drilling capabilities and is usually lightweight, flexible, and portable electric or hydraulically driven equipment. The equipment typically adopts a modular structure, equipped with a powerful motor, adjustable bracket and alloy drill bit, supports multiple hole diameters, and integrates a cooling and lubrication system to reduce wear. It is suitable for complex working conditions such as high altitude and confined spaces, significantly improving construction efficiency and safety, while being compatible with common profiles such as H-beams and I-beams.
[0003] Traditional portable drilling devices are prone to slippage and displacement when drilling steel. Manual clamping often requires repeated adjustments, making it difficult to quickly align with the preset hole position. Furthermore, drilling pressure can easily cause device displacement, affecting hole accuracy. Additional auxiliary fixing tools are often required, resulting in low on-site operating efficiency. Vibration may even cause drill bit wear or hole position deviation, increasing the risk of rework.
[0004] Therefore, in view of the problems that traditional portable drilling devices are prone to slippage and displacement when drilling steel, manual clamping often requires repeated adjustments, it is difficult to quickly align with the preset hole position, and additional auxiliary fixing tools are often required, resulting in low on-site operation efficiency and increased rework risk, a portable drilling device for steel structures in building engineering can be designed. Utility Model Content
[0005] To overcome the problems of slippage and displacement that traditional portable drilling devices often encounter when drilling steel, manual clamping often requires repeated adjustments, making it difficult to quickly align with the preset hole position. This often requires additional auxiliary fixing tools, resulting in low on-site operating efficiency and increased rework risk.
[0006] The technical solution of this utility model is as follows: a portable drilling device for steel structures in building engineering, including a base; and an upper clamping plate, a lower clamping plate slidably connected to the top of the base, a slide rail provided between the base and the lower clamping plate, a rack provided at the top of the lower clamping plate, a gear provided at the upper end of the rack, the gear meshing with the rack, a rotating rod fixedly connected to the rear end of the gear, the rotating rod rotatably connected to the base, a threaded rod rotatably connected to the top of the lower clamping plate, the upper clamping plate being threadedly connected to the outer surface of the threaded rod, three limiting blocks provided at the rear end of the upper clamping plate, three sliding grooves provided at the front end of the lower clamping plate, the limiting blocks slidably connected to the sliding grooves, and a rotating block fixedly connected to the upper end of the threaded rod.
[0007] Preferably, this device achieves secure clamping by placing the steel on the lower clamping plate and rotating the rotating block to drive the threaded rod, which in turn moves the upper clamping plate up and down. At the same time, the limiting block on the rear side of the upper clamping plate slides along the slide groove for directional positioning. When the drilling position needs to be adjusted, rotating the rotating rod causes the gear to mesh with the rack, which drives the lower clamping plate to slide left and right on the base for precise alignment. This effectively solves the slippage and offset problems caused by unstable clamping in traditional portable drilling devices, avoids repeated manual adjustments and the use of auxiliary tools, significantly improves drilling positioning efficiency, and reduces the risk of rework.
[0008] Preferably, a threaded rod 2 is fixedly connected to the top of the base, and a sliding block is slidably connected to the outer surface of the threaded rod 2.
[0009] Preferably, the outer surface of the threaded rod has two nuts connected by threads, which are located on the upper and lower sides of the sliding block, respectively, and the front end of the sliding block is fixedly connected to a fixing frame.
[0010] Preferably, a piston is fixedly connected inside the fixed frame, and a sliding plate is fixedly connected to the output end of the piston.
[0011] Preferably, a motor is fixedly connected to the bottom of the skateboard, and a drill bit is fixedly connected to the output end of the motor.
[0012] Preferably, a dust collection hood is provided at the bottom of the fixed frame, and a connecting pipe is fixedly connected to the upper end of the dust collection hood.
[0013] Preferably, a dust collection box is fixedly connected to the top of the connecting pipe, a filter screen is installed inside the dust collection box, and a fan is installed on the top of the dust collection box.
[0014] The beneficial effects of this utility model are:
[0015] This device achieves secure clamping by placing the steel on the lower clamping plate and rotating the rotating block to drive the threaded rod, which in turn moves the upper clamping plate up and down. At the same time, the limiting block on the rear side of the upper clamping plate slides along the slide groove for orientation and positioning. When the drilling position needs to be adjusted, rotating the rotating rod causes the gear to mesh with the rack, which drives the lower clamping plate to slide left and right on the base for precise alignment. This effectively solves the slippage and offset problems caused by unstable clamping in traditional portable drilling devices, avoids repeated manual adjustments and the use of auxiliary tools, significantly improves drilling positioning efficiency, and reduces the risk of rework. Attached Figure Description
[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model;
[0017] Figure 2 The diagram shown is a three-dimensional side sectional view of the present invention.
[0018] Figure 3 The diagram shown is a three-dimensional rear cross-sectional view of the present invention.
[0019] Figure 4 The diagram shown is a three-dimensional top-section and rear-section structural diagram of this utility model.
[0020] Figure 5 The diagram shown is a three-dimensional structural schematic of this utility model.
[0021] Explanation of reference numerals in the attached diagram: 1. Base; 2. Lower clamping plate; 3. Rack; 4. Rotating rod; 5. Gear; 7. Slide groove; 8. Upper clamping plate; 9. Threaded rod one; 10. Rotating block; 11. Threaded rod two; 12. Nut; 13. Sliding block; 14. Fixing frame; 15. Piston; 16. Slide plate; 17. Motor; 18. Drill bit; 19. Dust collection hood; 20. Connecting pipe; 21. Dust collection box; 22. Filter screen; 23. Fan. Detailed Implementation
[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0023] Please see Figures 1-4 This utility model provides an embodiment: a portable drilling device for steel structures in construction engineering includes a base 1; it also includes an upper clamping plate 8, a lower clamping plate 2 slidably connected to the top of the base 1, a slide rail between the base 1 and the lower clamping plate 2, a rack 3 on the top of the lower clamping plate 2, a gear 5 on the upper end of the rack 3, the gear 5 meshing with the rack 3, a rotating rod 4 fixedly connected to the rear end of the gear 5, the rotating rod 4 rotatably connected to the base 1, a threaded rod 9 rotatably connected to the top of the lower clamping plate 2, the upper clamping plate 8 threadedly connected to the outer surface of the threaded rod 9, three limiting blocks on the rear end of the upper clamping plate 8, and three sliding grooves 7 on the front end of the lower clamping plate 2. The limiting block is slidably connected to the slide groove 7, and the upper end of the threaded rod 9 is fixedly connected to the rotating block 10. This device achieves a firm clamping by placing the steel on the lower clamping plate 2 and rotating the rotating block 10 to drive the threaded rod 9 to move the upper clamping plate 8 up and down. At the same time, the limiting block on the rear side of the upper clamping plate 8 slides along the slide groove 7 to provide directional positioning. When it is necessary to adjust the drilling position, the rotating rod 4 is rotated to make the gear 5 mesh with the rack 3, which drives the lower clamping plate 2 to slide left and right on the base 1 for precise alignment. This effectively solves the problem of slippage and offset caused by unstable clamping in traditional portable drilling devices, avoids repeated manual adjustments and the use of auxiliary tools, significantly improves drilling positioning efficiency and reduces the risk of rework.
[0024] Please see Figures 2-5In this embodiment, a threaded rod 11 is fixedly connected to the top of the base 1. A sliding block 13 is slidably connected to the outer surface of the threaded rod 11. The sliding block 13 slides up and down on the base 1 to adjust its position. Two nuts 12 are threadedly connected to the outer surface of the threaded rod 11. The nuts 12 are located on the upper and lower sides of the sliding block 13, respectively. A fixed frame 14 is fixedly connected to the front end of the sliding block 13. By rotating the lower nut 12, the sliding block 13 moves the fixed frame 14 to a suitable position. Then, by rotating the upper nut 12, the fixed frame 14 is clamped and fixed, so that the base 1 and the fixed frame 14 can adapt to steel of different thicknesses and shapes. A piston 15 is fixedly connected inside the fixed frame 14. A slide plate 16 is fixedly connected to the output end of the piston 15. The piston 15 is used to push the slide plate 16 up and down. Drilling holes allows the piston 15 to push the slide plate 16 to slide up and down inside the fixed frame 14.
[0025] Please see Figures 3-5 In this embodiment, a motor 17 is fixedly connected to the bottom of the slide plate 16, and a drill bit 18 is fixedly connected to the output end of the motor 17. The motor 17 is used to drive the drill bit 18 to rotate. The slide plate 16 drives the motor 17 to move up and down. At the same time, the motor 17 drives the drill bit 18 to rotate and drill holes in the steel. A dust collection hood 19 is provided at the bottom of the fixed frame 14. A connecting pipe 20 is fixedly connected to the upper end of the dust collection hood 19. When the fan 23 is started, it generates suction to collect the debris and dust generated during drilling through the dust collection hood 19. A dust collection box 21 is fixedly connected to the top of the connecting pipe 20. A filter screen 22 is provided inside the dust collection box 21. A fan 23 is provided on the top of the dust collection box 21. Then, the debris and dust enter the dust collection box 21 through the connecting pipe 20 and are intercepted by the filter screen 22. They can be cleaned out of the dust collection box 21 through the movable door on the dust collection box 21.
[0026] During operation, the steel is placed on the lower clamping plate 2. Then, rotating the rotating block 10 drives the threaded rod 9 to rotate, which in turn moves the upper clamping plate 8 up and down to firmly clamp the steel. At the same time, the limiting block on the rear side of the upper clamping plate 8 slides within the sliding groove 7 to restrict the direction of movement of the upper clamping plate 8. When it is necessary to adjust the position of the drilled hole in the steel, rotating the rotating rod 4 drives the gear 5 to rotate. The gear 5 drives the rack 3 and the lower clamping plate 2 to slide left and right on the base 1 for adjustment. When the thickness of the steel is high, rotating the lower nut 12 causes the sliding block 13 to move the fixed frame 14 to the appropriate position. Then, rotating the upper nut 12 clamps the fixed frame 14 securely. The base 1 and the fixed frame 14 are designed to accommodate steel of different thicknesses and shapes. The piston 15 is used to push the slide plate 16 up and down. Drilling causes the piston 15 to push the slide plate 16 up and down within the fixed frame 14. The motor 17 is used to drive the drill bit 18 to rotate. The slide plate 16 drives the motor 17 to move up and down. At the same time, the motor 17 drives the drill bit 18 to rotate and drill holes in the steel. Simultaneously, the fan 23 is started to generate suction, which collects the debris and dust generated during drilling through the dust collection hood 19. Then, the debris and dust enter the dust collection box 21 through the connecting pipe 20 and are intercepted by the filter screen 22. The dust can be cleaned out of the dust collection box 21 through the movable door on the dust collection box 21.
[0027] Through the above steps, the steel is placed on the lower clamping plate 2. Then, the rotating block 10 is rotated to drive the threaded rod 9 to rotate. The threaded rod 9 drives the upper clamping plate 8 to move up and down to firmly clamp the steel. At the same time, the limiting block on the rear side of the upper clamping plate 8 slides in the slide groove 7 to restrict the direction of movement of the upper clamping plate 8. When it is necessary to adjust the position of the drilled hole in the steel, the rotating rod 4 is rotated to drive the gear 5 to rotate. The gear 5 drives the rack 3 and the lower clamping plate 2 to slide left and right on the base 1 for adjustment. This solves the problem that traditional portable drilling devices are prone to slippage and displacement when drilling steel. Manual clamping often requires repeated adjustments, making it difficult to quickly align with the preset hole position. Additional auxiliary fixing tools are often required, resulting in low on-site operation efficiency and increased rework risk.
Claims
1. A portable drilling device for steel structures in building construction, comprising a base (1); characterized in that: It also includes an upper clamping plate (8), a lower clamping plate (2) slidably connected to the top of the base (1), a slide rail between the base (1) and the lower clamping plate (2), a rack (3) at the top of the lower clamping plate (2), a gear (5) at the upper end of the rack (3), the gear (5) meshing with the rack (3), a rotating rod (4) fixedly connected to the rear end of the gear (5), the rotating rod (4) rotatably connected to the base (1), a threaded rod (9) rotatably connected to the top of the lower clamping plate (2), the upper clamping plate (8) threadedly connected to the outer surface of the threaded rod (9), three limiting blocks at the rear end of the upper clamping plate (8), three sliding grooves (7) at the front end of the lower clamping plate (2), the limiting blocks slidably connected to the sliding grooves (7), and a rotating block (10) fixedly connected to the upper end of the threaded rod (9).
2. The portable drilling device for steel structures in building construction according to claim 1, characterized in that: The top of the base (1) is fixedly connected to a threaded rod (11), and a sliding block (13) is slidably connected to the outer surface of the threaded rod (11).
3. The portable drilling device for steel structures in building engineering according to claim 2, characterized in that: The outer surface of the threaded rod (11) is threaded with two nuts (12), which are located on the upper and lower sides of the sliding block (13). The front end of the sliding block (13) is fixedly connected to a fixing frame (14).
4. The portable drilling device for steel structures in building construction according to claim 2, characterized in that: A piston (15) is fixedly connected inside the fixed frame (14), and a slide plate (16) is fixedly connected to the output end of the piston (15). The piston (15) is used to push the slide plate (16) to move up and down.
5. A portable drilling device for steel structures in building construction according to claim 4, characterized in that: A motor (17) is fixedly connected to the bottom of the slide (16), and a drill bit (18) is fixedly connected to the output end of the motor (17). The motor (17) is used to drive the drill bit (18) to rotate.
6. A portable drilling device for steel structures in building construction according to claim 4, characterized in that: A dust collection hood (19) is provided at the bottom of the fixed frame (14), and a connecting pipe (20) is fixedly connected to the upper end of the dust collection hood (19).
7. A portable drilling device for steel structures in building construction according to claim 6, characterized in that: A dust collection box (21) is fixedly connected to the top of the connecting pipe (20). A filter screen (22) is installed inside the dust collection box (21), and a fan (23) is installed on the top of the dust collection box (21).