A lever support for safe and fast drilling of anchor bolts
By designing the main body of the lever support and the height adjustment structure, the problem of time-consuming and labor-intensive drilling for rebar installation on the upper part of the structural column was solved, realizing safe and fast rebar installation and drilling operations, and improving construction efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CCCC THIRD HARBOR ENGINEERING CO LTD
- Filing Date
- 2025-06-26
- Publication Date
- 2026-07-14
AI Technical Summary
In building construction, drilling for rebar installation on the upper part of structural columns is time-consuming, labor-intensive, and unsafe, which affects construction efficiency.
A lever support was designed, comprising a support body, an electric drill fixing structure, and a height adjustment structure. Utilizing the lever principle, the electric drill is lifted via a lower drive rod and an upper horizontal connecting rod. Combined with the height adjustment structure, the support height is adjusted to achieve safe and rapid rebar drilling.
The lever support design allows workers to complete the rebar installation work on the floor, reducing the need for frequent scaffolding movements and improving construction efficiency and safety.
Smart Images

Figure CN224489590U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of engineering construction technology, specifically a lever support for safe and rapid rebar drilling. Background Technology
[0002] During the construction process, structural columns should be installed in long, tall, and important parts of the masonry structure to resist earthquakes. The main locations for these columns are: corners of long inner and outer walls and junctions of inner and outer walls; when there is no main structure at the end of the infill wall; and when the wall length exceeds 5m or twice the floor height, they should be installed in the middle of the infill wall.
[0003] In building construction, there are many structural columns. Due to the height of the upper part of the structural columns, the installation of rebar requires the erection of scaffolds and operating platforms. Frequent movement of the operating scaffolds and platforms is time-consuming and labor-intensive. Moreover, workers at high altitudes need to lift the electric drill upwards to complete the drilling, which is not only unsafe but also difficult to exert force, thus reducing efficiency. Therefore, there is a need to provide a lever support for safe and rapid rebar drilling to solve the above problems. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a lever support for safe and rapid rebar drilling, solving the problems mentioned in the background.
[0005] This utility model provides the following technical solution: a lever support for safe and rapid rebar drilling, comprising a support body, an electric drill fixing structure and a height adjustment structure, the support body comprising a lower support column, an upper support column, an upper horizontal connecting rod and a lower drive rod, the lower support column and the upper support column being staggered front and rear, one end of the upper horizontal connecting rod being rotatably connected to the upper end of the lower support column through a limiting shaft, the end of the upper horizontal connecting rod away from the lower support column being rotatably connected to the upper support column, and the lower drive rod being disposed below the upper horizontal connecting rod;
[0006] The electric drill fixing structure is located at the upper end of the upper support column, and the height adjustment structure is located at the lower end of the lower support column.
[0007] Preferably, the lower drive rod is rotatably connected to the lower support column via a rotating shaft, the front end of the lower drive rod is rotatably connected to the upper support column via a limiting shaft, and a handheld hole is provided at the end of the lower drive rod away from the upper support column.
[0008] Preferably, the electric drill fixing structure includes a placement frame and a clamping assembly. The placement frame is fixedly installed on the upper front end of the upper support column, and a binding and limiting groove is provided on the side wall of the placement frame.
[0009] Preferably, the clamping assembly includes a clamping screw, a pressure block, and a handle. The clamping screw is threadedly connected to the top plate of the placement frame, and the lower end of the clamping screw is rotatably connected to the pressure block.
[0010] Preferably, the upper end of the clamping screw passes through the top plate of the placement rack and is connected to the handle, and the pressure block is slidably connected to the inner wall of the placement rack via a slider.
[0011] Preferably, the height adjustment structure includes a supporting base tube, perforations, and a threaded protrusion. There are two perforations located on the upper front end of the supporting base tube, and the threaded protrusion is located on the upper front end of the supporting base tube and between the two perforations.
[0012] Preferably, the lower end of the support column is provided with an insertion rod, and the front of the insertion rod is provided with a plurality of positioning holes at equal intervals. The insertion rod is inserted into the support bottom tube, and a connecting plate is sleeved on the threaded protrusion. Both ends of the inner wall of the connecting plate are provided with positioning pins that cooperate with the positioning holes.
[0013] Preferably, a fastening nut is threaded onto the threaded protrusion, and a reinforcing strip is provided on the back of the support base tube.
[0014] Compared with the prior art, the present invention has the following beneficial effects:
[0015] 1. This lever support for safe and rapid rebar drilling has a main support body. When the electric drill is fixed on the drill fixing structure, the worker holds the end of the lower drive rod through the hand-held hole. When the worker presses down on the hand-held end of the lower drive rod, the front end of the lower drive rod lifts up and cooperates with the upper cross link, which can effectively lift the upper support column and the electric drill fixed at its top. The worker can carry out rebar drilling work directly on the floor without frequently moving the operating frame. By utilizing the principle of leverage, the worker can complete the rebar drilling work with less effort.
[0016] 2. This lever support for safe and rapid rebar drilling has a height adjustment structure. By rotating and loosening the fastening nut, the connecting plate can be pulled backward, causing the positioning column to disengage from the positioning hole. This allows for adjustment of the insertion depth of the insertion rod into the support base tube. After adjustment, the positioning column is inserted into the new positioning hole and the fastening nut is tightened, thereby achieving effective adjustment of the height of the lower support column. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of the lever support for safe and rapid rebar drilling according to this utility model;
[0018] Figure 2 This is a schematic diagram of the electric drill fixing structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the connection structure between the lower support column and the height adjustment structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the height adjustment structure of this utility model;
[0021] Figure 5 This utility model Figure 4 An enlarged schematic diagram of the structure at point A in the middle.
[0022] In the diagram: 1. Lower support upright; 101. Insert rod; 102. Positioning hole; 2. Upper support upright; 3. Upper horizontal connecting rod; 4. Lower drive rod; 401. Handhold hole; 5. Placement frame; 501. Binding limiting groove; 6. Clamping assembly; 601. Clamping screw; 602. Clamping block; 603. Handle; 7. Height adjustment structure; 701. Support base tube; 702. Through hole; 703. Threaded protrusion; 704. Connecting plate; 705. Positioning post; 706. Fastening nut; 707. Reinforcing strip. Detailed Implementation
[0023] 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.
[0024] Please see Figure 1-5 A lever support for safe and rapid rebar drilling includes a support body, an electric drill fixing structure and a height adjustment structure 7. The support body includes a lower support rod 1, an upper support rod 2, an upper horizontal connecting rod 3 and a lower drive rod 4. The lower support rod 1 and the upper support rod 2 are staggered front and rear. One end of the upper horizontal connecting rod 3 is rotatably connected to the upper end of the lower support rod 1 through a limiting shaft. The end of the upper horizontal connecting rod 3 away from the lower support rod 1 is rotatably connected to the upper support rod 2. The lower drive rod 4 is located below the upper horizontal connecting rod 3.
[0025] The electric drill fixing structure is located at the upper end of the upper support column 2, and the height adjustment structure 7 is located at the lower end of the lower support column 1.
[0026] The lower drive rod 4 is rotatably connected to the lower support rod 1 via a rotating shaft, and the front end of the lower drive rod 4 is rotatably connected to the upper support rod 2 via a limiting shaft. A handheld hole 401 is provided at the end of the lower drive rod 4 away from the upper support rod 2. When the electric drill is fixed on the electric drill fixing structure, the worker holds the end of the lower drive rod 4 through the handheld hole 401. When the worker presses down on the handheld end of the lower drive rod 4, the front end of the lower drive rod 4 is lifted and cooperates with the upper cross link 3, which can effectively lift the upper support rod 2 and the electric drill fixed at its top. The worker can directly carry out the rebar installation work on the floor without frequently moving the operating frame. By utilizing the principle of leverage, the worker can complete the rebar installation work with less effort.
[0027] The electric drill fixing structure includes a placement frame 5 and a clamping component 6. The placement frame 5 is fixedly installed on the upper front end of the upper support column 2. A binding and limiting groove 501 is provided on the side wall of the placement frame 5. The electric drill is placed on the placement frame 5, and the main body of the handheld electric drill is bound by a 0.2mm thick and 10mm wide sheet of iron and an auxiliary wire. After the sheet of iron and the wire are bound, they are inserted into the binding and limiting groove 501 to ensure the stability of the electric drill.
[0028] The clamping assembly 6 includes a clamping screw 601, a pressure block 602, and a handle 603. The clamping screw 601 is threadedly connected to the top plate of the placement frame 5. The lower end of the clamping screw 601 is rotatably connected to the pressure block 602. The upper end of the clamping screw 601 passes through the top plate of the placement frame 5 and is connected to the handle 603. The pressure block 602 is slidably connected to the inner wall of the placement frame 5 through a slider. By rotating the handle 603, the clamping screw 601 is driven to rotate and move downward. During the downward movement of the clamping screw 601, the pressure block 602 will move downward synchronously and clamp the drill handle, further ensuring the stability of the drill.
[0029] The height adjustment structure 7 includes a support base tube 701, perforations 702, and threaded protrusions 703. Two perforations 702 are provided and are located on the upper front end of the support base tube 701. The threaded protrusions 703 are located on the upper front end of the support base tube 701 and are situated between the two perforations 702. A rod 101 is provided at the lower end of the lower support column 1. Several positioning holes 102 are equidistantly provided on the front of the rod 101. The rod 101 is inserted into the support base tube 701. A connecting plate 704 is fitted onto the threaded protrusions 703. Both ends of the inner wall of the connecting plate 704 are provided with… There is a positioning pin 705 that cooperates with the positioning hole 102. A fastening nut 706 is threadedly connected to the threaded protrusion 703. A reinforcing strip 707 is provided on the back of the support base tube 701. By rotating to loosen the fastening nut 706, the connecting plate 704 can be pulled backward, so that the positioning pin 705 is disengaged from the positioning hole 102. Then the depth of the insertion rod 101 into the support base tube 701 can be adjusted. After the adjustment is completed, the positioning pin 705 is inserted into the new positioning hole 102 and the fastening nut 706 is tightened, thereby realizing the effective adjustment of the height of the lower support upright 1.
[0030] Working principle: By rotating and loosening the fastening nut 706, the connecting plate 704 can be pulled backward, causing the positioning pin 705 to disengage from the positioning hole 102. This allows adjustment of the insertion depth of the insertion rod 101 into the support base tube 701. After adjustment, the positioning pin 705 is inserted into the new positioning hole 102 and the fastening nut 706 is tightened, thereby effectively adjusting the height of the lower support pole 1. The electric drill is placed on the placement frame 5, and the main body of the handheld electric drill is bound with sheet metal and wire. After the sheet metal and wire are bound, they are inserted into the binding limit groove 501 to ensure the stability of the electric drill. By rotating the handle 603, the clamping screw 601 is rotated and moved downward. During the downward movement of the clamping screw 601, the pressure block 602 is pushed downward simultaneously and clamps the electric drill handle, further ensuring the stability of the electric drill.
[0031] Furthermore, when the electric drill is fixed on the electric drill fixing structure, the worker holds the end of the lower drive rod 4 through the hand-held hole 401. When the worker presses down the hand-held end of the lower drive rod 4, the front end of the lower drive rod 4 is lifted and cooperates with the upper cross link 3, which can effectively lift the upper support column 2 and the electric drill fixed at its top. The worker can directly carry out the rebar installation work on the floor without frequently moving the operating frame. By using the principle of leverage, the worker can complete the rebar installation work with less effort.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A lever support for safe and rapid rebar drilling, characterized in that, The system includes a support body, an electric drill fixing structure and a height adjustment structure (7). The support body includes a lower support rod (1), an upper support rod (2), an upper horizontal connecting rod (3) and a lower drive rod (4). The lower support rod (1) and the upper support rod (2) are staggered. One end of the upper horizontal connecting rod (3) is rotatably connected to the upper end of the lower support rod (1) through a limiting shaft. The end of the upper horizontal connecting rod (3) away from the lower support rod (1) is rotatably connected to the upper support rod (2). The lower drive rod (4) is located below the upper horizontal connecting rod (3). The electric drill fixing structure is located at the upper end of the upper support column (2), and the height adjustment structure (7) is located at the lower end of the lower support column (1).
2. The lever support for safe and rapid rebar drilling according to claim 1, characterized in that, The lower drive rod (4) is rotatably connected to the lower support rod (1) via a rotating shaft. The front end of the lower drive rod (4) is rotatably connected to the upper support rod (2) via a limiting shaft. A handheld hole (401) is provided at the end of the lower drive rod (4) away from the upper support rod (2).
3. A lever support for safe and rapid rebar drilling according to claim 1, characterized in that, The electric drill fixing structure includes a placement frame (5) and a clamping assembly (6). The placement frame (5) is fixedly installed on the upper front end of the upper support column (2). A binding limiting groove (501) is provided on the side wall of the placement frame (5).
4. A lever support for safe and rapid rebar drilling according to claim 3, characterized in that, The clamping assembly (6) includes a clamping screw (601), a pressure block (602) and a handle (603). The clamping screw (601) is threadedly connected to the top plate of the placement frame (5), and the lower end of the clamping screw (601) is rotatably connected to the pressure block (602).
5. A lever support for safe and rapid rebar drilling according to claim 4, characterized in that, The upper end of the clamping screw (601) passes through the top plate of the placement rack (5) and is connected to the handle (603). The pressure block (602) is slidably connected to the inner wall of the placement rack (5) through a slider.
6. A lever support for safe and rapid rebar drilling according to claim 1, characterized in that, The height adjustment structure (7) includes a support base tube (701), a through hole (702), and a threaded protrusion (703). There are two through holes (702) and they are located on the upper front of the support base tube (701). The threaded protrusion (703) is located on the upper front of the support base tube (701) and between the two through holes (702).
7. A lever support for safe and rapid rebar drilling according to claim 6, characterized in that, The lower end of the support column (1) is provided with a plug rod (101). The plug rod (101) has several positioning holes (102) evenly spaced on its front side. The plug rod (101) is inserted into the support bottom tube (701). A connecting plate (704) is sleeved on the threaded protrusion (703). Both ends of the inner wall of the connecting plate (704) are provided with positioning pins (705) that cooperate with the positioning holes (102).
8. A lever support for safe and rapid rebar drilling according to claim 7, characterized in that, The threaded protrusion (703) is threaded with a fastening nut (706), and the back of the support base tube (701) is provided with a reinforcing strip (707).