Portable beam bottom drilling device
By designing a convenient beam bottom drilling device, utilizing a triangular support frame and a manual lifting mechanism, the problem of low construction efficiency in beam bottom drilling was solved, achieving stability and controllability in the construction process, and improving construction quality and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING SPECIAL ENG TECH
- Filing Date
- 2025-06-28
- Publication Date
- 2026-08-04
AI Technical Summary
In existing technologies, drilling at the bottom of beams is inefficient, and it is difficult for construction workers to exert upward force for extended periods, resulting in inconvenience and low efficiency in construction.
A convenient beam bottom drilling device is designed, including a triangular support frame, a manually adjustable gimbal, a manually lifting mechanism, and equipment mounting clamps. The drilling equipment can be stabilized and its direction adjusted by manually adjusting the gimbal and lifting mechanism, simplifying the construction operation.
It improves construction efficiency and safety, ensures controllable drilling depth and force, simplifies the construction process, and enhances construction quality and convenience.
Smart Images

Figure CN224592086U_ABST
Abstract
Description
Technical Field
[0001] This patent relates to a convenient device for drilling upwards during the construction process of the beam bottom in bridge reinforcement engineering. Specifically, it relates to a device that is easy to install, flexible in construction operation, highly reliable, and facilitates upward drilling. Background Technology
[0002] Bridges, as a key component of transportation infrastructure, play a vital role in economic development and social life. However, with the passage of time, the increase in traffic volume, and the impact of environmental factors, a large number of bridges have experienced varying degrees of damage and performance degradation.
[0003] From a temporal perspective, bridges built in the early days were inherently limited in structural load-bearing capacity due to the constraints of design standards, material properties, and construction techniques at the time. For example, some bridges built in the last century had lower design load standards and are now unable to meet the ever-increasing traffic demands. As their service life increases, materials naturally age, such as concrete carbonization and steel reinforcement corrosion, leading to a gradual deterioration in structural performance.
[0004] In terms of traffic flow, the rapid urbanization and booming transportation industry have led to a sharp increase in bridge traffic, with frequent passage of heavy and overloaded vehicles, greatly increasing the burden on bridge structures. Prolonged exposure to excessive loads has resulted in bridges developing defects such as crack expansion and accelerated deformation, leading to a decline in their load-bearing capacity and safety.
[0005] Environmental factors are equally important. The increasing frequency of extreme weather events, such as torrential rains, floods, and earthquakes, directly impacts and damages bridge structures. Simultaneously, corrosive media such as acid rain in industrially polluted areas and salt spray in coastal regions continuously erode bridge structural materials, accelerating their deterioration process.
[0006] In light of the above, bridge reinforcement technology has emerged and become crucial. By adopting reasonable and effective reinforcement techniques, the load-bearing capacity of bridges can be improved, their service life extended, and their safety and durability enhanced. This avoids the high costs and traffic disruptions associated with demolition and reconstruction, and is of great significance for ensuring smooth transportation networks and promoting sustainable economic development.
[0007] Therefore, bridge reinforcement projects are constantly emerging. Currently, bridge reinforcement projects include simply supported beam bridges and continuous beam bridges. Cracks appear at the bottom of the beams during construction and require reinforcement. Reinforcement generally uses methods such as bonding prestressed carbon fiber plates and bonding steel plates. However, this requires drilling holes at the bottom of the beams. But because drilling at the bottom of the beams requires workers to hold tools and drill upwards, and the upward force is required for a long time, the construction efficiency is low and it is not easy for construction workers to operate. To address this, a convenient beam bottom drilling device is provided to solve the above problems. Utility Model Content
[0008] The purpose of this invention is to provide a convenient beam bottom drilling device that can solve the problems mentioned in the background art.
[0009] To achieve the above objectives, this utility model provides the following technical solution: a convenient beam bottom drilling device, comprising a triangular support frame, a manually adjustable gimbal, a manually lifting mechanism, and an equipment mounting clamp. The manually adjustable gimbal is connected to the top of the triangular support frame. A spirit level is installed on the movable platform surface of the manually adjustable gimbal. The manually lifting mechanism is detachably installed on the movable platform surface of the manually adjustable gimbal. The equipment mounting clamp is connected to the manually lifting mechanism, and the manually lifting mechanism is used to control the lifting and lowering of the equipment mounting clamp. The equipment mounting clamp is used for installation and connection with drilling equipment.
[0010] It also includes a manually adjustable gimbal. According to the triangular support frame, a convenient beam bottom drilling device is characterized in that: the manual lifting mechanism includes a main column, a movable seat A and a connecting rod, the main column is provided above the manually adjustable gimbal, two or more sets of movable seats A are movably sleeved on the main column, and a connecting rod is connected between each set of movable seats A, and the equipment mounting clamp is integrally formed and connected to the end face of the manually adjustable gimbal away from the main column.
[0011] Preferably, the manual lifting mechanism further includes an extension arm, a movable seat B, a guide slide, a movable seat C, a spring, and fastening bolts. The bottom of the lowest set of movable seats A is connected to an extension arm parallel to the main support. Movable seats B and C are respectively fitted onto a section of the outer wall of the main support below movable seats A. Movable seats B are located between movable seats A and movable seats C. The extension arm is integrally formed with movable seats C and is L-shaped. The outer wall of movable seat B is integrally formed on the guide slide. The extension arm and the guide slide are slidably connected vertically. A spring is fitted onto a section of the outer wall of the main support between movable seats B and movable seats C. The two ends of the spring are respectively connected to movable seats B and movable seats C. A threaded hole with a right angle to its axial direction and penetrating through the outer wall of movable seat B is integrally formed on the outer wall of movable seat B. A fastening bolt that can abut against the outer wall of the main support is connected to the threaded hole on the outer wall of movable seat B.
[0012] Preferably, the manual lifting mechanism further includes a linkage column, a linkage arm, a manual lever, and a limiting groove. The bottom end of the extension arm is connected to a linkage column that forms a right angle with its axial direction. A linkage arm is sleeved and connected to the outer wall of the fastening bolt. A manual lever is hinged to the end face of the linkage arm away from the fastening bolt. A limiting groove is integrally formed on the outer wall of the manual lever. The linkage column is slidably installed in the limiting groove.
[0013] Preferably, the bottom end of the main support column is integrally connected to a mounting base, and a support base is mounted on the movable platform at the top of the manually adjustable gimbal. A threaded hole is integrally formed at the top center of the support base, and a stud that can be threadedly connected to the threaded hole is integrally formed at the bottom of the mounting base.
[0014] Compared with existing technologies, the beneficial effects of this utility model are as follows: This convenient beam bottom drilling device is mainly used for fixing and saving labor during the drilling process at the bottom of concrete beams. The entire device is divided into three main parts according to the on-site construction setup: an upper drilling equipment fixing structure and a movable main frame; a middle section with a directional adjustment platform; and a bottom adjustment bracket. The overall design is simple and convenient, with a significant stabilizing effect, effectively ensuring construction safety and quality, and helping to improve construction efficiency. The innovative and improved beam bottom drilling device allows for controllable force and depth, effectively improving construction efficiency and quality, making the entire construction process more convenient and process control easier. For reinforced concrete beam bridge structures, which have high overall construction quality requirements and are difficult to control, the new drilling device is not only convenient to construct, install, and dismantle. Attached Figure Description
[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0016] Figure 1 This is an overall structural diagram of the present invention;
[0017] Figure 2 This is a structural diagram of the manual lifting mechanism of this utility model;
[0018] Figure 3 This is a structural diagram of the manually adjustable gimbal of this utility model;
[0019] Figure 4 This is a front view of the present invention.
[0020] Reference numerals: 1. Triangular support frame; 2. Manually adjustable gimbal; 3. Manual lifting mechanism; 31. Main support column; 32. Movable seat A; 33. Connecting rod; 34. Extension arm; 35. Movable seat B; 36. Guide slide; 37. Movable seat C; 38. Spring; 39. Linkage column; 310. Linkage arm; 311. Fastening bolt; 312. Manual lever; 313. Limiting groove; 4. Equipment mounting clamp; 5. Mounting base; 6. Support base; 7. Threaded hole; 8. Stud; 9. Spirit level. Detailed Implementation
[0021] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0022] Please see Figure 1-4 This utility model provides a technical solution: a convenient beam bottom drilling device, including a triangular support frame 1, a manually adjustable gimbal 2, a manually lifting mechanism 3, and an equipment mounting clamp 4. The manually adjustable gimbal 2 is connected to the top of the triangular support frame 1. A spirit level 9 is installed on the movable platform surface of the manually adjustable gimbal 2. The manually lifting mechanism 3 is detachably installed on the movable platform surface of the manually adjustable gimbal 2. The equipment mounting clamp 4 is connected to the manually lifting mechanism 3, and the manually lifting mechanism 3 is used to control the lifting and lowering of the equipment mounting clamp 4. The equipment mounting clamp 4 is used for installation and connection with drilling equipment. It also includes the manually adjustable gimbal 2. According to claim 1, a convenient beam bottom drilling device is characterized in that: the manual lifting mechanism 3 includes a main column 31, movable seats A32, and connecting rods 33. The main column 31 is set above the manual adjustment platform 2. Two or more sets of movable seats A32 are movably fitted on the main column 31. Connecting rods 33 connect each set of movable seats A32. The equipment mounting clamp 4 is integrally formed and connected to the end face of the manual adjustment platform 2 away from the main column 31. The bottom end of the main column 31 is integrally formed and connected to the mounting base 5. The top movable platform of the manual adjustment platform 2 is mounted and installed with a support base 6. The top center of the support base 6 is integrally formed and provided with a threaded hole 7. The bottom of the mounting base 5 is integrally formed and connected with a stud 8 that can be threadedly connected to the threaded hole 7. The entire device is mainly divided into three parts according to the on-site construction setup: the upper drilling equipment fixing structure and movable main frame, the middle part directional adjustment platform, and the bottom adjustment bracket. The overall design is simple and convenient, with obvious stabilizing effect, which more effectively ensures construction safety and quality and helps to improve construction efficiency.
[0023] The manual lifting mechanism 3 includes an extension arm 34, a movable seat B35, a guide slide 36, a movable seat C37, a spring 38, and fastening bolts 311. The bottom of the lowest set of movable seats A32 is connected to an extension arm 34 parallel to the main support column 31. Movable seats B35 and C37 are respectively fitted onto a section of the outer wall of the main support column 31 below the movable seats A32. Movable seat B35 is located between movable seats A32 and C37. The extension arm 34 is integrally formed with movable seat C37 and is L-shaped. The outer wall of movable seat B35 is integrally formed on the guide slide 36. The extension arm 34 and guide slide 36 are vertically slidably connected. A spring 38 is fitted onto a section of the outer wall of the main support column 31 between movable seats B35 and C37. The two ends of the spring member 38 are respectively connected to the movable bracket B35 and the movable bracket C37. The outer wall of the movable bracket B35 is integrally formed with a screw hole at a right angle to its axial direction and extends through it. The screw hole on the outer wall of the movable bracket B35 is internally threaded with a fastening bolt 311 that can abut against the outer wall of the main support 31. The manual lifting mechanism 3 also includes a linkage column 39, a linkage arm 310, a manual lever 312 and a limiting movable groove 313. The bottom end of the extension arm 34 is connected to the linkage column 39 at a right angle to its axial direction. The linkage arm 310 is sleeved on the outer wall of the fastening bolt 311. The end face of the linkage arm 310 away from the fastening bolt 311 is hinged to the manual lever 312. The outer wall of the manual lever 312 is integrally formed with a limiting movable groove 313. The linkage column 39 is slidably installed in the limiting movable groove 313.
[0024] Working principle: When in use, connect and lock the drilling equipment with the equipment mounting clamp 4, then align the stud 8 with the threaded hole 7 and rotate it so that the mounting base 5 and the support base 6 are connected. Move the device to the drilling position, adjust the height of the triangular support frame 1 and ensure stability, and shake the manual adjustment gimbal 2 handle in conjunction with the level bubble 9 to adjust the manual lifting mechanism 3 to the horizontal.
[0025] Turn on the drilling equipment and push the manual lever 312. The manual lever 312 pushes the linkage column 39 to rise through the limit movable groove 313. The movable seat A32, the connecting rod 33 and the extension arm 34 rise along the axis of the main column 31 under the guidance between the movable seat B35 and the main column 31. The drilling equipment rises accordingly and contacts the position to be drilled to start drilling.
[0026] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A convenient beam bottom drilling device, characterized in that, include: The triangular support frame (1), the manually adjustable gimbal (2), the manually lifting mechanism (3) and the equipment mounting clamp (4) are connected to the top of the triangular support frame (1). The manually lifting mechanism (3) is detachably installed on the movable platform of the manually adjustable gimbal (2). The equipment mounting clamp (4) is connected to the manually lifting mechanism (3) and the manually lifting mechanism (3) is used to control the lifting of the equipment mounting clamp (4). The equipment mounting clamp (4) is used to install and connect with the drilling equipment.
2. The convenient beam bottom drilling device according to claim 1, characterized in that: The manual lifting mechanism (3) includes a main support (31), movable seat A (32) and connecting rod (33). The main support (31) is set above the manual adjustment gimbal (2). Two or more sets of movable seats A (32) are movably fitted on the main support (31). Connecting rod (33) is connected between each set of movable seats A (32). The equipment mounting clamp (4) is integrally formed and connected to the end face of the manual adjustment gimbal (2) away from the main support (31).
3. The convenient beam bottom drilling device according to claim 2, characterized in that: The manual lifting mechanism (3) also includes an extension arm (34), a movable seat B (35), a guide slide (36), a movable seat C (37), a spring (38), and a fastening bolt (311). The bottom of the lowest set of movable seats A (32) is connected to an extension arm (34) parallel to the main support (31). The outer wall of the main support (31) below the movable seat A (32) is fitted with movable seats B (35) and movable seats C (37). Movable seats B (35) is located between movable seats A (32) and movable seats C (37). The extension arm (34) and movable seat C (37) are integrally formed and connected in an L-shape. The outer wall of the movable seat B (35) is integrally formed on the guide slide (36). The extension arm (34) and the guide slide (36) are slidably connected in the vertical direction. A spring (38) is sleeved on the outer wall of the main support (31) between the movable seat B (35) and the movable seat C (37). The two ends of the spring (38) are connected to the movable seat B (35) and the movable seat C (37) respectively. The outer wall of the movable seat B (35) is integrally formed with a screw hole at a right angle to its axial direction and penetrates through it. The screw hole on the outer wall of the movable seat B (35) is internally threaded with a fastening bolt (311) that can abut against the outer wall of the main support (31).
4. The convenient beam bottom drilling device according to claim 3, characterized in that: The manual lifting mechanism (3) also includes a linkage column (39), a linkage arm (310), a manual lever (312), and a limiting groove (313). The bottom end of the extension arm (34) is connected to a linkage column (39) that forms a right angle with its axial direction. The linkage arm (310) is sleeved on the outer wall of the fastening bolt (311). The end face of the linkage arm (310) away from the fastening bolt (311) is hinged to the manual lever (312). The limiting groove (313) is integrally formed on the outer wall of the manual lever (312). The linkage column (39) is slidably installed in the limiting groove (313).
5. A convenient beam bottom drilling device according to claim 4, characterized in that: The bottom end of the main support column (31) is integrally connected to the mounting base (5), and the top movable platform of the manual adjustment gimbal (2) is equipped with a support base (6). The top center of the support base (6) is integrally provided with a threaded hole (7), and the bottom of the mounting base (5) is integrally connected with a stud (8) that can be threadedly connected to the threaded hole (7).
6. A convenient beam bottom drilling device according to claim 5, characterized in that: The movable platform surface of the manually adjustable gimbal (2) is equipped with a spirit level (9).