A ground nail cleaning device for engineering construction

CN224372913UActive Publication Date: 2026-06-19绥棱县建筑工程指导中心

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
绥棱县建筑工程指导中心
Filing Date
2025-07-24
Publication Date
2026-06-19

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Abstract

This utility model discloses a ground nail removal device for engineering construction, including a frame. L-shaped handles are symmetrically arranged on the upper end of the frame, and a controller is located on one side of each L-shaped handle. A small integrated electric hydraulic cylinder is vertically arranged inside the frame. The output end of the small integrated electric hydraulic cylinder is connected to the control rod of the shearing component. This utility model relates to the field of engineering construction technology. The small integrated electric hydraulic cylinder and battery box are integrated and installed inside the frame. The battery in the battery box powers the small integrated electric hydraulic cylinder. By adjusting the extension and retraction of the output end of the small integrated electric hydraulic cylinder, the control rod is pushed to adjust the posture of the V-shaped clamp on the shearing component, thereby achieving the opening and closing control of the clamp jaws.
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Description

Technical Field

[0001] This utility model relates to the field of engineering construction technology, specifically to a ground nail removal device for engineering construction. Background Technology

[0002] Construction nails, as foundation fixing devices, are widely used in billboards, fence fixing, and other construction projects. However, after the removal of fences, billboards, and other facilities, the remaining nails often become "hidden dangers on the road" due to incomplete cleaning. Residual ground nails typically protrude only 2-5 centimeters from the ground, making them difficult for pedestrians to notice but extremely easy to trip over, resulting in numerous cases of serious injury and even death. The sharp parts of the nails can puncture tires, posing a safety hazard to electric vehicles, bicycles, and other vehicles. Currently, the removal of residual ground nails from construction sites is receiving increasing attention. Management departments require that all residual ground nails be thoroughly removed after construction is completed, with the protrusion height of the nails ≤2mm after removal to avoid tripping or tire puncture risks. Otherwise, in the event of an accident, the construction unit will be required to pay for the costs and seek reimbursement. In existing technology, angle grinder cutting and hand hammer chiseling are commonly used to remove the protruding parts of residual ground nails to completely eliminate safety hazards. However, during the removal process, operators need to work in a squatting position for extended periods, resulting in high labor intensity. Furthermore, sparks may fly during the cutting process, posing certain safety hazards. In view of these issues, this case was developed after in-depth research. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a ground nail removal device for engineering construction, which solves the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a ground nail removal device for engineering construction, including a frame, with L-shaped handles symmetrically arranged at the upper end of the frame, a controller arranged on one side of the L-shaped handles, a small integrated electric hydraulic cylinder arranged vertically inside the frame, the output end of the small integrated electric hydraulic cylinder being connected to the control rod of the shearing component, a battery box arranged above the small integrated electric hydraulic cylinder, a battery installed in the battery box, and elastic support components symmetrically arranged at the lower end of the frame;

[0005] The shearing component includes a support base located at the lower end of the upright frame. A fixed shaft is provided inside the support base. Two symmetrically arranged V-shaped clamps are hinged to the fixed shaft. The lower end of each V-shaped clamp has a clamping jaw. The upper end of each V-shaped clamp is connected to a transmission component.

[0006] The aforementioned transmission components include a guide sleeve, a guide column, a T-shaped frame, and a thrust rod. The guide sleeve is fixed inside the upright frame. The guide column is slidably inserted into the guide sleeve and its upper end is connected to the control rod. The T-shaped frame is welded to the lower end of the guide column. The thrust rod is symmetrically arranged on both ends of the T-shaped frame and is rotatably connected to the T-shaped frame. The other end of the thrust rod is rotatably engaged with the upper end of the V-shaped clamp.

[0007] The aforementioned T-shaped frame and the push rod are rotatably connected by a fixing pin, and the push rod and the V-shaped clamp body are rotatably connected by a limiting pin.

[0008] The aforementioned jaws are made of L-shaped high-carbon, high-chromium mold steel, and the cutting edge is a wedge-shaped structure with a flat bottom and an upward sloping top.

[0009] The aforementioned elastic support component includes a fixed base, a compression spring, a support, and a telescopic column. The fixed base is symmetrically arranged on the lower end of the upright, the compression spring is installed on the lower end of the fixed base, the support is arranged on the lower end of the compression spring, and the telescopic column is inserted into the support and its upper and lower ends are fixedly connected to the fixed base and the support, respectively. Beneficial effects

[0010] This utility model provides a ground nail removal device for engineering construction. It has the following advantages: This ground nail removal device integrates a small, one-piece electric hydraulic cylinder and a battery box within a frame. The battery in the battery box powers the small, one-piece electric hydraulic cylinder. By adjusting the extension and retraction of the output end of the small, one-piece electric hydraulic cylinder, the control lever is pushed to adjust the posture of the V-shaped jaws on the cutting component, thereby controlling the opening and closing of the jaws. In use, the device is moved above the ground nail, and the elastic support component directly contacts the ground on both sides of the nail, effectively reducing the difficulty of operation. Pressing the frame downwards brings the lower end of the jaws to the same horizontal position as the root of the ground nail. Activating the small, one-piece electric hydraulic cylinder expands its output end, which in turn pushes the V-shaped jaws to move, causing the jaws on both sides to come closer together and cut the ground nail. The device has a compact structure, is easy to operate, and effectively improves the efficiency of cleaning residual ground nails after engineering construction. Compared with existing angle grinder cutting, it is more labor-saving and safer. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of a ground nail removal device for engineering construction according to the present invention.

[0012] Figure 2 This is a front view structural schematic diagram of a ground nail removal device for engineering construction according to the present invention.

[0013] Figure 3 This is a cross-sectional structural diagram of a ground nail removal device for engineering construction according to the present invention.

[0014] Figure 4 This is an isometric structural diagram of the V-shaped clamp body described in this utility model.

[0015] In the diagram: 1. Stand; 2. L-shaped handle; 3. Controller; 4. Small integrated electric hydraulic cylinder; 5. Control lever; 6. Battery box; 7. Support base; 8. Fixed shaft; 9. V-shaped clamp body; 10. Clamping jaws; 11. Guide sleeve; 12. Guide column; 13. T-shaped frame; 14. Thrust rod; 15. Fixing pin; 16. Limit pin; 17. Fixed base; 18. Compression spring; 19. Support; 20. Telescopic column. Detailed Implementation

[0016] 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.

[0017] Example: Refer to the appendix of the instruction manual Figure 1-4 As can be seen, this application specifically designs a ground nail removal device for engineering construction, including a frame 1. An L-shaped handle 2 is symmetrically arranged on the upper end of the frame 1, and a controller 3 is arranged on one side of the L-shaped handle 2. A small integrated electric hydraulic cylinder 4 is arranged vertically inside the frame 1. The output end of the small integrated electric hydraulic cylinder 4 is connected to the control rod 5 of the shearing component. A battery box 6 is arranged above the small integrated electric hydraulic cylinder 4, and a battery is installed inside the battery box 6. Elastic support components are symmetrically arranged at the lower end of the frame 1. The shearing component includes a support base 7 located at the lower end of the frame 1. A fixed shaft 8 is arranged inside the support base 7. Two symmetrically arranged V-shaped clamps 9 are hinged to the fixed shaft 8. A clamping jaw 10 is arranged at the lower end of the V-shaped clamps 9, and the upper end of the V-shaped clamps 9 is connected to a transmission component. When in use, hold the L-shaped handle 2 with both hands and move the device above the ground nail. The elastic support component directly contacts the ground on both sides of the ground nail, which can effectively reduce the difficulty of operation. Press the stand 1 down so that the lower end of the jaw 10 is at the same level as the root of the ground nail. Press the controller 3 to start the small integrated electric hydraulic cylinder 4, control the output end of the small integrated electric hydraulic cylinder 4 to expand, and then push the V-shaped jaw 9 to move, so that the jaws 10 on both sides come closer together to cut the ground nail. The structure is compact and easy to operate, which can effectively improve the efficiency of cleaning up residual ground nails after construction. Compared with the existing angle grinder cutting, it is more labor-saving and safer. It should be noted that the small integrated electric hydraulic cylinder uses Anchi 48-60V electric hydraulic push rod.

[0018] In the specific implementation process, the above-mentioned transmission components include a guide sleeve 11, a guide column 12, a T-shaped frame 13, and a thrust rod 14. The guide sleeve 11 is fixed inside the upright frame 1. The guide column 12 is slidably inserted into the guide sleeve 11 and its upper end is connected to the control rod 5. The T-shaped frame 13 is welded to the lower end of the guide column 12. The thrust rod 14 is symmetrically arranged on both ends of the T-shaped frame 13 and is rotatably connected to the T-shaped frame 13. The other end of the thrust rod 14 is rotatably engaged with the upper end of the V-shaped clamp body 9. The T-shaped frame 13 and the thrust rod 14 are rotatably connected by a fixing pin 15, and the thrust rod 14 and the V-shaped clamp body 9 are rotatably connected by a limiting pin 16. The connection is as follows: the jaws 10 are made of L-shaped high-carbon high-chromium mold steel with a wedge-shaped structure that is flat at the bottom and sloping at the top. When cutting, the output end of the small integrated electric hydraulic cylinder 4 is expanded, pushing the control rod 5 downward. The downward movement of the control rod 5 pushes the guide column 12 to slide downward along the guide sleeve 11, thereby pushing the T-shaped frame 13 downward. This drives the two side thrust rods 14 to push the V-shaped jaw 9 to rotate, which in turn causes the jaws 10 on both sides to move closer together to cut the ground nail. After cutting, the output end of the small integrated electric hydraulic cylinder 4 is contracted, causing the V-shaped jaw 9 to move in the opposite direction, opening the jaws 10 and completing the cutting operation.

[0019] In the specific implementation process, the above-mentioned elastic support components include a fixed seat 17, a compression spring 18, a support 19, and a telescopic column 20. The fixed seat 17 is symmetrically arranged on the lower end of the upright 1. The compression spring 18 is installed on the lower end of the fixed seat 17. The support 19 is arranged on the lower end of the compression spring 18. The telescopic column 20 is inserted into the support 19 and its upper and lower ends are fixedly connected to the fixed seat 17 and the support 19, respectively. When in use, the support 19 part contacts the ground around the ground nail. Under the cooperation of the device's own weight and the operator's downward pressure, the compression spring 18 and the telescopic column 20 contract. On the one hand, it can play a supporting role and reduce the labor intensity of the operator. On the other hand, it can effectively prevent the jaws 10 from directly contacting the ground and causing collision damage.

[0020] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0021] 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 ground nail removal device for engineering construction, comprising a frame, characterized in that, The upper end of the upright is symmetrically provided with L-shaped handles, and a controller is provided on one side of the L-shaped handles. A small integrated electric hydraulic cylinder is provided in the vertical direction inside the upright. The output end of the small integrated electric hydraulic cylinder is connected to the control rod of the shearing component. A battery box is provided above the small integrated electric hydraulic cylinder, and a battery is installed in the battery box. Elastic support components are symmetrically provided at the lower end of the upright. The shearing component includes a support base located at the lower end of the upright frame. A fixed shaft is provided inside the support base. Two symmetrically arranged V-shaped clamps are hinged to the fixed shaft. The lower end of each V-shaped clamp has a clamping jaw. The upper end of each V-shaped clamp is connected to a transmission component.

2. The ground nail removal device for engineering construction according to claim 1, characterized in that, The transmission component includes a guide sleeve, a guide column, a T-shaped frame, and a thrust rod. The guide sleeve is fixed inside the upright frame. The guide column is slidably inserted into the guide sleeve and its upper end is connected to the control rod. The T-shaped frame is welded to the lower end of the guide column. The thrust rod is symmetrically arranged on both ends of the T-shaped frame and is rotatably connected to the T-shaped frame. The other end of the thrust rod is rotatably engaged with the upper end of the V-shaped clamp.

3. The ground nail removal device for engineering construction according to claim 2, characterized in that, The T-shaped frame and the push rod are rotatably connected by a fixing pin, and the push rod and the V-shaped clamp body are rotatably connected by a limiting pin.

4. The ground nail removal device for engineering construction according to claim 1, characterized in that, The jaws are made of L-shaped high-carbon, high-chromium mold steel, and the cutting edge is a wedge-shaped structure with a flat bottom and an upward sloping top.

5. The ground nail removal device for engineering construction according to claim 1, characterized in that, The elastic support component includes a fixed base, a compression spring, a support, and a telescopic column. The fixed base is symmetrically arranged on the lower end of the upright. The compression spring is installed on the lower end of the fixed base. The support is arranged on the lower end of the compression spring. The telescopic column is inserted into the support and its upper and lower ends are fixedly connected to the fixed base and the support, respectively.