Tower crane grounding device

Abstract

The utility model relates to the technical field of tower cranes, and discloses a tower crane grounding device which comprises a grounding cylinder and a grounding wire, the top of the grounding cylinder is provided with a threaded groove, the periphery of the inner side of the grounding cylinder is fixedly connected with an inclined plane sliding plate, the periphery of the outer wall of the grounding cylinder is provided with outlet holes, and the outlet holes are communicated with the threaded groove. The inner side of the threaded groove is in threaded connection with a screw rod, the top end of the outer wall of the screw rod is rotationally connected with a mounting plate, metal strips are fixedly connected to the periphery of the bottom of the mounting plate, inclined pieces are fixedly connected to the sides, away from each other, of the multiple metal strips, and a winding mechanism is arranged on the left side of the outer wall of the grounding cylinder. According to the utility model, the metal strips are extruded to penetrate through the holes along the internal paths and extend to the periphery, the inclined sheets can enable the metal strips to be easily inserted into surrounding soil, on the contrary, the dragging force can be enhanced through the surrounding soil, the condition that the grounding cylinder shakes is avoided, and the stability is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of tower crane technology, and in particular to a tower crane grounding device. Background Technology

[0002] As building construction becomes increasingly taller and more complex, the safety and reliability of tower cranes, as core vertical transportation equipment, have become paramount in project management. During operation, tower cranes are highly susceptible to lightning strikes or static electricity buildup due to their height, massive metal structure, and exposure to areas with high lightning activity, which can lead to equipment damage, fires, or even personal injury. The electrical connection between the tower crane's metal structure and the ground is a crucial measure to ensure the safety of operators and prevent lightning strikes.

[0003] A search revealed Chinese Patent Publication No. CN219874069U, which discloses a tower crane grounding device, including a concrete foundation. A vertical rod is fixedly connected to the top of the concrete foundation, and a horizontal rod is fixedly connected to the inner side of the vertical rod. A grounding mechanism is threadedly connected to the top of the concrete foundation, and a clamping mechanism is slidably connected to the outer side of the horizontal rod. This utility model employs the above structure. Because the grounding block is threadedly fixed to the second bolt and the second screw hole by a fixing block and a second bolt, when the grounding block needs to be removed, the second bolt can be unscrewed from the second screw hole using the thread principle. After the grounding block is removed, the clamping block can be removed. Because the clamping block is slidably connected to the horizontal rod by a sliding groove, when it needs to be removed, the handle can be grasped and the clamping block pulled out. The protective pad protects the user's hand, preventing injury from the handle, thus achieving the beneficial effect of conveniently disassembling the grounding device. However, in actual use, the above-mentioned device has the problem that the installation between the grounding electrode and the ground may become loose due to long-term vibration and exposure to wind and sun. Once the connection becomes loose, the contact resistance will increase, affecting the conduction of current and reducing the safety of the grounding device. Therefore, a tower crane grounding device is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a tower crane grounding device, which aims to improve the problem that the installation between the grounding body and the ground in the prior art will loosen due to long-term vibration and exposure to wind and sun.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a tower crane grounding device, comprising a grounding cylinder and a grounding wire, wherein a threaded groove is provided at the top of the grounding cylinder, inclined sliding plates are fixedly connected to the inner circumference of the grounding cylinder, and outlet holes are provided on the outer circumference of the grounding cylinder, a screw is threadedly connected to the inner side of the threaded groove, an mounting plate is rotatably connected to the top of the outer wall of the screw, metal strips are fixedly connected to the bottom circumference of the mounting plate, and inclined plates are fixedly connected to the opposite sides of the plurality of metal strips, and a winding mechanism is provided on the left side of the outer wall of the grounding cylinder.

[0006] The above technical solution involves initially inserting the grounding cylinder into the soil to a certain depth, then placing multiple sets of metal strips at the bottom of the mounting plate into the inclined sliding plate. The screw is then rotated and connected into the threaded groove. At this point, the multiple sets of metal strips at the bottom of the mounting plate are pressed downwards and extend outwards along the path of the inclined sliding plate. Combined with the hook-shaped design of the inclined plates on the surface of the metal strips, this enhances the connection range between the grounding cylinder and the ground, greatly preventing the grounding cylinder from shaking due to environmental influences.

[0007] As a further description of the above technical solution:

[0008] The winding mechanism includes a mounting frame, which is fixedly connected to the left side of the outer wall of the grounding cylinder. A winding drum is rotatably connected to the top of the mounting frame. The bottom end of the winding drum passes through the top of the mounting frame and is fixedly connected to a locking shaft. A pull rod is slidably connected to the front side of the mounting frame. The rear end of the pull rod passes through the front side of the mounting frame and is fixedly connected to a locking component. A spring is fixedly connected to the outer wall of the pull rod.

[0009] The above technical solution involves winding one end of the grounding wire through a take-up drum and then installing it on a tower crane. At this point, the pull rod is pulled outward to disengage the locking component from the locking shaft, and the take-up drum is rotated to wind up the excess length of the grounding wire to prevent the wire from becoming too long and causing tangling or bumping. The pull rod is then released, allowing the locking component to engage with the locking shaft under the spring's rebound force, thus completing the fixing of the take-up drum.

[0010] As a further description of the above technical solution:

[0011] The outer wall of the grounding cylinder is fixedly connected with slices on all four sides, and the outer wall of the slices is beveled.

[0012] The above technical solution integrates the grounding cylinder and the cutting blade into one piece. The cutting blade can cut off the roots in the soil, making it easier to install the grounding cylinder.

[0013] As a further description of the above technical solution:

[0014] A knob is fixedly connected to the top end of the screw, and a rubber sleeve is fixedly connected to the outer wall of the knob.

[0015] The above technical solution involves the screw and the knob being integrally formed. The installation of the knob allows operators to easily rotate the screw to fix the metal strip in place.

[0016] As a further description of the above technical solution:

[0017] The grounding cylinder has handles fixedly connected to both the left and right sides of its outer wall, and anti-slip sleeves are fixedly connected to the outer walls of the handles.

[0018] The above technical solution involves fixing handles to both sides of the grounding cylinder, making it easy to pick up during installation and transportation.

[0019] As a further description of the above technical solution:

[0020] The outer wall of the grounding cylinder is fixedly connected to weld points on both the front and rear sides, and each of the two weld points is fixedly connected to a lifting ring on the side furthest from each other.

[0021] The above technical solution allows for the installation and movement of the entire device using lifting rings in conjunction with a crane, even when dealing with grounding cylinders of different sizes.

[0022] As a further description of the above technical solution:

[0023] The left end of the grounding wire is fixedly connected to a C-shaped buckle, and the top of the C-shaped buckle is threaded with a reinforcing bolt.

[0024] The above technical solution allows C-type buckles and reinforcing bolts to be quickly installed on the frame at the bottom of the tower crane, improving installation efficiency.

[0025] As a further description of the above technical solution:

[0026] The mounting plate is fixedly connected to the outer wall of the surrounding area with locking plates, and the grounding cylinder is provided with locking grooves on the outer wall of the surrounding area.

[0027] With the above technical solution, the locking plate and the mounting plate are integrally formed. When the mounting plate moves downward, the locking plate will slide and connect in the locking groove, further improving the stability of the device.

[0028] This utility model has the following beneficial effects:

[0029] 1. In this utility model, after the grounding cylinder is initially inserted into the soil to a certain depth, the screw is rotated into the threaded groove, and at the same time, the metal strips are placed in the inclined sliding plate. By squeezing the metal strips, they are squeezed and deformed along the internal path, thereby extending outwards through the hole. The inclined welding design of the inclined plate allows the metal strips to be easily inserted into the surrounding soil. Conversely, the surrounding soil can enhance the dragging force, prevent the grounding cylinder from shaking, and greatly improve stability.

[0030] 2. In this utility model, the excess grounding wire is first wound around the take-up drum, and the pull rod is pulled forward so that the locking part at the end of the pull rod disengages from the locking shaft. Then, the take-up drum is rotated to take up the grounding wire. After the take-up is completed, the locking part is locked into the locking shaft under the spring's return, thus fixing the take-up drum. Attached Figure Description

[0031] Figure 1 This is a three-dimensional schematic diagram of a tower crane grounding device proposed in this utility model;

[0032] Figure 2 This is a front view of a tower crane grounding device proposed in this utility model;

[0033] Figure 3 This is a partial structural schematic diagram of a tower crane grounding device proposed in this utility model;

[0034] Figure 4 This is a cross-sectional view of a tower crane grounding device proposed in this utility model;

[0035] Figure 5 This is a schematic diagram of the winding mechanism of a tower crane grounding device proposed in this utility model.

[0036] Legend:

[0037] 1. Grounding cylinder; 2. Rewinding mechanism; 201. Mounting bracket; 202. Rewinding drum; 203. Engaging shaft; 204. Pull rod; 205. Engaging part; 206. Spring; 3. Threaded groove; 4. Angled sliding plate; 5. Outlet hole; 6. Screw; 7. Mounting plate; 8. Engaging plate; 9. Metal strip; 10. Angled piece; 11. Engaging groove; 12. Slice; 13. Knob; 14. Rubber sleeve; 15. Handle; 16. Anti-slip sleeve; 17. Weld point; 18. Lifting ring; 19. Grounding wire; 20. C-shaped buckle; 21. Reinforcing bolt. Detailed Implementation

[0038] 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.

[0039] Reference Figure 2 , Figure 3 and Figure 4 This utility model provides an embodiment of a tower crane grounding device, comprising a grounding cylinder 1 and a grounding wire 19. A C-shaped buckle 20 is fixedly connected to the left end of the grounding wire 19, and a reinforcing bolt 21 is threadedly connected to the top of the C-shaped buckle 20. The grounding wire 19 is quickly installed to the tower crane frame via the C-shaped buckle 20, and the reinforcing bolt 21 on the C-shaped buckle 20 is rotated to improve the firmness between the grounding wire 19 and the tower crane. A threaded groove 3 is provided at the top of the grounding cylinder 1, and a cylindrical column is provided inside the grounding cylinder 1. A threaded groove 3 is provided at the top of the cylindrical column. Inclined sliding plates 4 are fixedly connected to all four sides of the inner side of the grounding cylinder 1. Outlet holes 5 are provided around all four sides of the outer wall of the grounding cylinder 1. The inclined sliding plates 4 are fixed around the cylindrical column and are integrally formed with the grounding cylinder 1. A screw 6 is threadedly connected to the inner side of the threaded groove 3, and a mounting plate is rotatably connected to the top of the outer wall of the screw 6. 7. Metal strips 9 are fixedly connected to the bottom of the mounting plate 7 around the perimeter. The mounting plate 7 and the metal strips 9 are welded together to improve their firmness. The mounting plate 7 is installed on the top of the screw 6. When the screw 6 is rotated and installed in the threaded groove 3, multiple metal strips 9 are inserted into the corresponding inclined slide plate 4. The arc design of the inclined slide plate 4 allows the metal strips 9 to be squeezed and deformed along the internal path, thereby passing through the hole 5 and extending outwards. Inclined pieces 10 are fixedly connected to the opposite sides of the multiple metal strips 9. The inclined pieces 10 are fixedly fixed to the metal strips 9 at equal intervals. A winding mechanism 2 is provided on the left side of the outer wall of the grounding cylinder 1. A locking plate 8 is fixedly connected to the perimeter of the outer wall of the mounting plate 7. A locking groove 11 is opened on the perimeter of the outer wall of the grounding cylinder 1. A knob 13 is fixedly connected to the top of the screw 6. A rubber sleeve 14 is fixedly connected to the outer wall of the knob 13.

[0040] Specifically, the grounding wire 19 can be easily and quickly installed on the tower crane frame. To further improve the firmness between the grounding wire 19 and the tower crane, simply rotate the reinforcing bolt 21 on the C-shaped buckle 20. A cylindrical column is provided inside the grounding cylinder 1, with a threaded groove 3 at the top. To enhance the stability of the grounding cylinder 1, an inclined sliding plate 4 is fixed around the cylindrical column, integrally formed with the grounding cylinder 1. The mounting plate 7 is installed on the top of the screw 6. When the screw 6 is rotated and installed in the threaded groove 3, multiple metal strips 9 are inserted into the corresponding inclined sliding plate 4. In the middle, the curved surface design of the inclined slide plate 4 allows the metal strip 9 to be squeezed and deformed along the internal path, thereby extending outwards through the hole 5. The inclined plates 10 are fixed at equal intervals on the metal strip 9. The inclined welding design of the inclined plates 10 allows the metal strip 9 to be easily inserted into the surrounding soil. At the same time, it can enhance the drag force through the surrounding soil, preventing the grounding cylinder 1 from shaking, thereby greatly improving stability. The top of the screw 6 is fixed with a knob 13, and the outer wall of the knob 13 is fixed with a rubber sleeve 14, which further improves the ease of use and safety of the device.

[0041] Reference Figure 1 , Figure 2 and Figure 5 The winding mechanism 2 includes a mounting frame 201, which is fixedly connected to the left side of the outer wall of the grounding cylinder 1. The mounting frame 201 is welded to the left side of the outer wall of the grounding cylinder 1, and provides support space for the winding mechanism 2. A winding drum 202 is rotatably connected to the top of the mounting frame 201. The bottom end of the winding drum 202 passes through the top of the mounting frame 201 and is fixedly connected to a locking shaft 203. The winding drum 202 and the locking shaft 203 are integrally formed and rotatably mounted on the top of the mounting frame 201. The outer wall of the locking shaft 203 is provided with multiple locking mechanisms. The slot 11 is used for subsequent fixing. The front side of the mounting bracket 201 is slidably connected to the pull rod 204. The rear end of the pull rod 204 passes through the front side of the mounting bracket 201 and is fixedly connected to the locking piece 205. The outer wall of the pull rod 204 is fixedly connected to the spring 206, so that the locking piece 205 at the end of the pull rod 204 is disengaged from the locking shaft 203. Then, the winding drum 202 is rotated to wind up the grounding wire 19. After winding is completed, the pull rod 204 is released, so that the locking piece 205 is locked into the outer wall of the locking shaft 203 under the spring 206.

[0042] Specifically, the mounting bracket 201 is welded to the left side of the outer wall of the grounding cylinder 1, which not only improves the overall stability of the winding mechanism 2, but also provides it with the necessary support space. The winding drum 202 and the locking shaft 203 are integrally formed, ensuring a seamless connection between them, and can be rotatably mounted on the top of the mounting bracket 201. For further fixing, the outer wall of the locking shaft 203 is designed with multiple locking grooves 11. These grooves play a crucial role in the winding process. During installation, the grounding wire 19 first needs to be wound around the winding drum 202, and then the installation is completed by pulling the pull rod 204 forward. During the winding process, by rotating the winding drum 202, the grounding wire 19 can be effectively wound up. After winding is completed, by releasing the pull rod 204, the locking part 205 can smoothly lock into the outer wall of the locking shaft 203 under the rebound action of the spring 206, thereby achieving the fixing of the winding drum 202 and ensuring the stability and reliability of the entire winding process.

[0043] Reference Figure 1 and Figure 2 All four sides of the outer wall of the grounding cylinder 1 are fixedly connected with slices 12. The outer wall of slices 12 is beveled. Handles 15 are fixedly connected to the left and right sides of the outer wall of the grounding cylinder 1. Anti-slip sleeves 16 are fixedly connected to the outer wall of the handles 15. Welding points 17 are fixedly connected to the front and back sides of the outer wall of the grounding cylinder 1. Hanging rings 18 are fixedly connected to the two welding points 17 on the side that is far apart from each other.

[0044] Specifically, multiple slices 12 are fixed around the outer wall of the grounding cylinder 1. The outer wall of the slices 12 is beveled to better cut the roots in the soil. In addition, the handles 15 on both sides of the grounding cylinder 1 are not only convenient for users to operate, but also have anti-slip sleeves 16 fixed on their outer walls to ensure sufficient friction during use and prevent slippage. The lifting rings 18 are fixed to both sides of the grounding cylinder 1 by welding points 17, which can be easily hung and transported.

[0045] Working principle: First, after the grounding cylinder 1 is initially inserted into the soil to a certain depth, the screw 6 is rotated and installed in the threaded groove 3. At the same time, multiple sets of metal strips 9 at the bottom are placed in the inclined slide plate 4. The arc design of the inclined slide plate 4 allows the metal strips 9 to be squeezed and deformed along the internal path, thereby penetrating the hole 5 and extending outwards. The inclined welding design of the inclined plate 10 allows the metal strips 9 to be easily inserted into the surrounding soil. Conversely, it can enhance the dragging force through the surrounding soil.

[0046] Furthermore, during the installation process, the grounding wire 19 is first wound around the take-up drum 202, and the pull rod 204 is pulled forward to disengage the locking piece 205 at the end of the pull rod 204 from the locking shaft 203. Then, the take-up drum 202 is rotated to wind up the grounding wire 19. After winding is completed, the pull rod 204 is released, and the locking piece 205 is locked into the outer wall of the locking shaft 203 under the spring 206, thus fixing the take-up drum 202.

[0047] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A tower crane grounding device comprising a grounding cylinder (1) and a grounding wire (19), characterized in that: The top of the grounding cylinder (1) is provided with a threaded groove (3), the inner side of the grounding cylinder (1) is fixedly connected with a slope slide plate (4), the outer wall of the grounding cylinder (1) is provided with an outlet hole (5), the inner side of the threaded groove (3) is threadedly connected with a screw rod (6), the outer wall top end of the screw rod (6) is rotatably connected with a mounting plate (7), the bottom of the mounting plate (7) is fixedly connected with a metal strip (9), the far side of the metal strip (9) is fixedly connected with an inclined plate (10), and the outer wall left side of the grounding cylinder (1) is provided with a winding mechanism (2).

2. A tower grounding device according to claim 1, characterized in that The winding mechanism (2) comprises a mounting frame (201), the mounting frame (201) is fixedly connected to the outer wall left side of the grounding cylinder (1), the top of the mounting frame (201) is rotatably connected with a winding cylinder (202), the bottom end of the winding cylinder (202) penetrates the top of the mounting frame (201) and is fixedly connected with a clamping shaft (203), the front side of the mounting frame (201) is slidably connected with a pull rod (204), the rear end of the pull rod (204) penetrates the front side of the mounting frame (201) and is fixedly connected with a clamping piece (205), and the outer wall of the pull rod (204) is fixedly connected with a spring (206).

3. A tower grounding device according to claim 1, characterized in that: The outer wall of the grounding cylinder (1) is fixedly connected with a slice (12), and the outer wall of the slice (12) is treated with a slope.

4. A tower grounding device according to claim 1, characterized in that: The top end of the screw rod (6) is fixedly connected with a rotary knob (13), and the outer wall of the rotary knob (13) is fixedly connected with a rubber sleeve (14).

5. A tower grounding device according to claim 1, characterized in that: The outer wall left and right sides of the grounding cylinder (1) are fixedly connected with handles (15), and the outer wall of the handle (15) is fixedly connected with an anti-skid sleeve (16).

6. A tower grounding device according to claim 1, characterized in that: The outer wall front and rear sides of the grounding cylinder (1) are fixedly connected with welding points (17), and the far side of the two welding points (17) is fixedly connected with an eye ring (18).

7. A tower grounding device according to claim 1, characterized in that: The left end of the grounding wire (19) is fixedly connected with a C-shaped buckle (20), and the top of the C-shaped buckle (20) is threadedly connected with a reinforcing bolt (21).

8. A tower grounding device according to claim 1, characterized in that: The outer wall of the mounting plate (7) is fixedly connected with a clamping plate (8), and the outer wall of the grounding cylinder (1) is provided with a clamping groove (11).

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