Clamping assembly for power transmission of electric tower and use method of clamping assembly

Abstract

The invention relates to the technical field of clamping devices, in particular to a clamping assembly for power transmission of an electric tower and a using method of the clamping assembly. The moving mechanism is used for driving the base frame to move along the cable; the lifting mechanism is used for adjusting the angle of the base frame through lifting during moving so as to keep the base frame balanced; the conveying mechanism comprises a clamping block and a feeding device; the invention discloses a clamping assembly with freely adjustable angle and height, when the clamping assembly is used, after an original cable is clamped by a moving mechanism, the whole device moves from a previous electric tower to a next electric tower along the original cable, and the posture of the whole assembly is continuously adjusted through a lifting mechanism and a conveying mechanism in the moving process. And the whole assembly is effectively prevented from being stuck on the cable in the transportation process.

Description

[0001] This application is a divisional application of application number 202310731908.9, filed on June 20, 2023, with the invention title "A clamping assembly with freely adjustable angle and height" at the time of filing. Technical Field

[0002] This invention relates to the field of power transmission clamping technology for power towers, specifically to a clamping component for power transmission in power towers and its usage method. Background Technology

[0003] Power transmission refers to the method of transmitting power from one place to another through a power plant or source. In my country, high-voltage power lines are used to transmit electricity. Due to the long transmission distance, multiple high-voltage power towers are needed to erect the power lines in the air. At present, when laying cables, multiple traction ropes and pulleys are usually installed between adjacent power towers, and then the cables are pulled by manpower from one power tower to the next. The whole process requires a lot of manpower. In the subsequent expansion of the power grid, if new cables need to be laid on high-voltage power towers, the above operation must be repeated, which is time-consuming and labor-intensive. Therefore, it is urgent to design a device for transporting power between adjacent power towers during power grid expansion. Summary of the Invention

[0004] The purpose of this invention is to provide a clamping assembly for power transmission in power towers and a method of using the same, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A clamping assembly for power transmission over power towers, comprising:

[0007] A base frame, wherein mounting blocks are provided;

[0008] A moving mechanism is provided on the base frame and is used to drive the base frame to move along the cable;

[0009] A lifting mechanism, disposed on the base frame, wherein the lifting device is used to adjust the angle of the base frame by lifting during movement to maintain the base frame's balance; and

[0010] A conveying mechanism is disposed on the mounting block. The conveying mechanism includes a clamping block and a feeding device. The lifting device is used to control the lifting of the clamping block. The feeding device is disposed inside the clamping block and is used to convey cables.

[0011] Preferably, the moving mechanism includes a drive motor, fixed wheels, a clamping push rod, a connecting rod, and a locking device. The drive motor is disposed inside the fixed wheels, and two fixed wheels are symmetrically arranged. The clamping push rod is used to push the fixed wheels to move. The connecting rod is used to connect the two fixed wheels. The locking device is used to restrict the relative movement of the two fixed wheels after the connecting rod connects to the fixed wheels.

[0012] Preferably, the moving mechanism is provided in two sets, and the two sets of moving mechanisms are symmetrically arranged on the base frame.

[0013] Preferably, the connecting rod is provided with a cavity, the fixed wheel is provided with a rotor, the rotor is provided with an insertion hole, and a plurality of locking holes are provided around the insertion hole. The locking mechanism is provided in the cavity, and the locking device includes a pressing block, a first return spring, a second return spring, and a locking rod. The pressing block is movably inserted into the cavity. The two ends of the first return spring are respectively connected to the pressing block and the side wall of the cavity. The two ends of the second return spring are respectively connected to the locking rod and the side wall of the cavity. Pressing the pressing rod is used to push out the locking rod so that the locking rod is inserted into the locking hole.

[0014] Preferably, the moving mechanism further includes a friction device, which includes a friction block, a docking sensor, and a push rod. The side wall of the connecting rod is provided with a mounting groove, and the push rod is disposed in the mounting groove. The push rod is connected to the friction block. The transmitting end and the receiving end of the docking sensor are respectively disposed on the side wall of the locking rod and the locking hole. The push rod is activated when the transmitting end and the receiving end of the docking sensor dock together.

[0015] Preferably, the lifting mechanism includes a lifting push rod and a level, the level is disposed on the base frame, the level is used to determine whether the base frame is in a horizontal state, and the two ends of the lifting push rod are respectively connected to the fixed wheel and the base frame.

[0016] Preferably, an adjusting motor is provided at one end of the lifting push rod, and the adjusting motor is used to adjust the angle of the lifting push rod.

[0017] Preferably, the clamping block is provided with a conveying hole, and a plurality of mounting holes are provided around the conveying hole, and the feeding device is disposed in the mounting holes.

[0018] Preferably, the feeding device includes a rotary motor, a rubber block, and a feeding push rod. The two ends of the feeding push rod are respectively connected to the mounting hole and the rubber block. The rubber block is connected to a connecting rod, and the connecting rod is connected to the rotary motor. The rotary motor is used to drive the connecting rod to rotate, thereby driving the rubber block to rotate.

[0019] Preferably, a camera is mounted on the base frame.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention discloses a clamping assembly with freely adjustable angle and height. In use, after clamping the original cable through the moving mechanism, the entire device moves along the original cable from the previous power tower to the next power tower. During the movement, the posture of the entire assembly is continuously adjusted by the lifting mechanism (which changes the center of gravity by adjusting the level of the base frame through lifting) and the conveying mechanism (which changes the center of gravity by conveying the cable and adjusting the cable length at both ends of the base frame). This effectively prevents the entire assembly from flipping over and getting stuck on the cable due to vibration during transportation. The emergence of the present invention has changed the work of repeatedly setting up traction ropes during power grid expansion, greatly reducing the workload of power grid workers, and is worthy of widespread promotion. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the working state structure of the present invention;

[0022] Figure 2 for Figure 1 A magnified schematic diagram of a portion of area A in the middle;

[0023] Figure 3 This is a schematic diagram of the axial view structure of the present invention;

[0024] Figure 4 This is a schematic diagram of the isometric structure on the lower side of the present invention;

[0025] Figure 5 for Figure 4 A magnified schematic diagram of a portion of region B in the middle section;

[0026] Figure 6 This is a schematic diagram of the connection between the connecting rod and the rotor.

[0027] Figure 7 for Figure 6 A magnified schematic diagram of a portion of the C region.

[0028] In the diagram: 1. Base frame, 2. Mounting block, 3. Drive motor, 4. Fixed wheel, 5. Clamping push rod, 6. Connecting rod, 7. Cavity, 8. Insertion hole, 9. Locking hole, 10. Pressing block, 11. Return spring one, 12. Return spring two, 13. Locking rod, 14. Friction block, 15. Push rod, 16. (Dating sensor) Transmitter, 17. (Dating sensor) Receiver, 18. Lifting push rod, 19. Level, 20. Clamping block, 21. Mounting hole, 22. Rotating motor, 23. Rubber block, 24. Feeding push rod, 25. Camera, 100. Cable, 181. Adjusting motor, 401. Rotor. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see Figure 1-7 The present invention provides a technical solution:

[0031] A clamping assembly with freely adjustable angle and height, as per the instruction manual. Figure 1 As shown, it includes:

[0032] Base frame 1 is used to install other components of the present invention. Base frame 1 is provided with mounting block 2, which has a rotation function and is used to install conveying mechanism.

[0033] A moving mechanism is provided on the base frame 1 and is used to drive the base frame 1 to move along the cable 100;

[0034] The moving mechanism includes a drive motor 3, a fixed wheel 4, a clamping push rod 5, a connecting rod 6, and a locking device. The drive motor 3 is located inside the fixed wheel 4, and the fixed wheel 4 is fixedly connected to the lifting push rod 18. Therefore, the outer shell of the fixed wheel 4 will not rotate. The drive motor 3 is used to drive the rotor 401 inside the fixed wheel 4 to move after locking the connecting rod 6. The drive motor 3 is a stepper motor manufactured by Shenzhen Kerry Transmission Technology Co., Ltd. In this embodiment, the other motors are also geared motors manufactured by Shenzhen Kerry Transmission Technology Co., Ltd. The motors are existing technology and can be directly adapted to the working principle. The procurement process involves two symmetrically arranged fixed wheels 4. During operation, the cable 100 is clamped between the two fixed wheels 4. The clamping push rod 5 is a silent electric push rod manufactured by Foshan Keshilang Transmission System Technology Co., Ltd. The clamping push rod 5 is used to drive the fixed wheels 4 to move. The connecting rod 6 is used to connect the two fixed wheels 4. One end of the connecting rod 6 is connected to an electric push rod with a telescopic function. When retracted, the cable 100 can be placed between the two fixed wheels 4. The locking device is used to restrict the relative movement of the two rotors 401 after the connecting rod 6 is connected to the rotor 401 inside the fixed wheel 4.

[0035] There are two sets of moving mechanisms, which are symmetrically arranged on the base frame 1. The two sets of moving mechanisms are arranged sequentially along the moving direction. Setting two sets of moving mechanisms can help the entire clamping assembly maintain balance.

[0036] The connecting rod 6 has a cavity 7 for installing a locking mechanism. The fixed wheel 4 has an insertion hole 8 for inserting the connecting rod 6. Six locking holes 9 are arranged around the insertion hole 8, which cooperate with the locking rod 13 to restrict the relative movement between the connecting rod 6 and the rotor 401. The locking mechanism is located in the cavity 7, which is located at one end of the connecting rod 6. The locking device includes a pressing block 10, a first return spring 11, a second return spring 12, and a locking rod 13. The pressing block 10 is movably inserted into the cavity 7. The locking rod 13 is trapezoidal in shape when viewed from the front. The accompanying drawings in the instruction manual show a side view of the locking rod 13. The two ends of the return spring 11 are connected to the pressing block 10 and the side wall of the cavity 7, respectively. The return spring 11 is a tension spring, which means that it always remains in a compressed state when no external force is applied, that is, one end of the pressing rod is always outside the connecting rod 6. The two ends of the return spring 12 are connected to the locking rod 13 and the side wall of the cavity 7, respectively. The return spring 12 is a compression spring, that is, the locking rod 13 is always in the cavity 7 when no external force is applied. Pressing the pressing rod is used to push out the locking rod 13 so that the locking rod 13 is inserted into the lock hole 9.

[0037] The moving mechanism also includes a friction device, which includes a friction block 14, a docking sensor, and a push rod 15. The side wall of the connecting rod 6 is provided with a mounting groove for mounting the friction block 14. The push rod 15 is located in the mounting groove and is a miniature electric push rod. The push rod 15 is connected to the friction block 14. The friction block 14 is made of the same material as the rubber block 23, both of which are hard rubber materials. The transmitting end 16 and the receiving end 17 of the docking sensor are respectively located on the side wall of the locking rod 13 and the locking hole 9. The docking sensor is an E3F-20C1 / 20L type photoelectric sensor produced by Wenzhou Sandashi Pneumatic Technology Co., Ltd. When the transmitting end 16 and the receiving end 17 of the docking sensor dock together, the push rod 15 is activated.

[0038] A lifting mechanism is installed on the base frame 1. The lifting device is used to adjust the angle of the base frame 1 during movement, thereby maintaining the base frame 1's balance. The lifting mechanism includes a lifting push rod 18 and a level 19. The lifting push rod 18 is a silent DC electric push rod manufactured by Foshan Keshilang Transmission System Technology Co., Ltd. The lifting push rod 18 adjusts its length based on data feedback from the level 19, ensuring the base plate remains horizontal and preventing it from rolling and falling during operation. The level 19 is mounted on the upper end of the base frame 1 and is a Bluetooth level purchased from Suzhou Maipu Tools Co., Ltd. Data detected by the level 19 can be transmitted to the controller via Bluetooth. The level 19 is used to determine whether the base frame 1 is horizontal. The two ends of the lifting push rod 18 are hinged to the fixed wheel 4 and the base frame 1, respectively. An adjusting motor 181 is installed at the end of the lifting push rod 18 near the base frame 1. The adjusting motor 181 is used to adjust the angle between the lifting push rod 18 and the base frame 1, thereby maintaining the base frame 1's horizontal position.

[0039] The conveying mechanism is located on the mounting block 2. The conveying mechanism includes a clamping block 20 and a feeding device. The lifting device is used to control the lifting of the clamping block 20. The feeding device is located inside the clamping block 20 and is used to convey the cable 100.

[0040] The clamping block 20 is provided with a conveying hole, and several mounting holes 21 are provided around the conveying hole. The mounting holes 21 are used to install the feeding device, which is installed in the mounting holes 21. The feeding device includes a rotary motor 22, a rubber block 23, and a feeding push rod 24. The two ends of the feeding push rod 24 are respectively connected to the mounting holes 21 and the rubber block 23. The rubber block 23 is connected to a connecting rod, which is connected to the rotary motor 22. The rotary motor 22 is a miniature 130 motor purchased from Shenzhen Beike Trading Co., Ltd. The rotary motor 22 is used to drive the connecting rod to rotate, thereby driving the rubber block 23 to rotate. The rotation of the rubber block 23 is used to drive the cable 100 connected to the rubber block 23 for conveying.

[0041] A camera 25 is installed on the base frame 1. The camera 25 is a 4K high-definition camera module. This model of camera 25 can rotate to help staff observe the surrounding situation. The camera 25 is used to help users observe the situation around the equipment in manual mode.

[0042] Working principle: In use, place one end of the cable 100 into the conveying hole in the clamping block 20. Adjust the distance of the feeding push rod 24 according to the diameter of the cable 100, so that the rubber block 23 extends inward and clamps the cable 100. Start the rotating motor 22 to convey the cable 100 forward one distance. Then retract the clamping push rod 5 to separate the fixed rollers 4 from each other, and insert the original cable 100 between the two fixed rollers 4, as shown in the instruction manual. Figure 1As shown, the connecting rod 6 is then activated to connect the original cable 100 between the two fixed wheels 4. When the connecting rod 6 is inserted to the bottom of the insertion hole 8, the pressing rod will be compressed under force. At this time, the return spring 11 is stretched under force, the return spring 2 is stretched under force, and the locking rod 13 is squeezed by the pressing rod and popped out of the cavity 7 into the locking hole 9, thereby restricting the relative movement of the connecting rod 6 and the fixed wheel 4. When the locking rod 13 is inserted into the locking hole 9, the transmitting end 16 and the docking end of the docking sensor will dock with each other. At this time, the pushing rod 15 will push the friction block 14 to move, thereby increasing the friction between the connecting rod 6 and the cable 100. As the entire assembly moves along the cable 100, since the distance between the two power towers is usually far during the movement, the movement will be affected by wind force and the cable 100. The oscillation is minimal because the fixed wheel 4 clamps the cable 100, so the original cable 100 and the cable 100 to be installed are relatively stationary in the axial direction. However, during the movement, as the cable 100 to be installed extends, the original cable 100 will bend to a certain extent, which will increase the oscillation of the entire assembly. At this time, the lifting push rod 18 and the adjusting motor 181 will be activated, and the rotating motor 22 will be activated to adjust the length of the clamped cable 100 and adjust the level of the entire assembly to keep the base frame 1 balanced. When the next power tower is reached, the lifting push rod 18 moves the cable 100 (base frame 1) to the same level as the worker, and then the corresponding rotating motor 22 is activated to deliver the cable 100 to the worker for installation.

[0043] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A clamping assembly for power transmission in power towers, characterized in that, include: A base frame, wherein mounting blocks are provided; A moving mechanism is provided on the base frame and is used to drive the base frame to move along the cable; A lifting mechanism is provided on the base frame, and the lifting mechanism is used to adjust the angle of the base frame by lifting during movement so as to keep the base frame balanced; as well as A conveying mechanism is disposed on the mounting block, the conveying mechanism includes a clamping block and a feeding device, the feeding device being disposed inside the clamping block; The moving mechanism includes a drive motor, fixed wheels, clamping push rods, connecting rods, and locking devices. The drive motor is located inside the fixed wheels, and there are two fixed wheels symmetrically arranged. The clamping push rods are used to push the fixed wheels to move. The connecting rods are used to connect the two fixed wheels. The locking devices are used to restrict the relative movement of the two fixed wheels after the connecting rods connect to the fixed wheels. The connecting rod is provided with a cavity, the fixed wheel is provided with a rotor, the rotor is provided with an insertion hole, and a plurality of locking holes are provided around the insertion hole. The locking device is provided in the cavity, and the locking device includes a pressing block, a first return spring, a second return spring, and a locking rod. The pressing block is movably inserted into the cavity. The first return spring is connected at both ends to the pressing block and the side wall of the cavity, and the first return spring is a tension spring. The second return spring is connected at both ends to the locking rod and the side wall of the cavity, and pressing the pressing block is used to push out the locking rod so that the locking rod is inserted into the locking hole. The second return spring is a compression spring. The moving mechanism also includes a friction device, which includes a friction block, a docking sensor, and a push rod. The side wall of the connecting rod is provided with a mounting groove, and the push rod is disposed in the mounting groove and connected to the friction block. The transmitting end and receiving end of the docking sensor are respectively disposed on the side wall of the locking rod and the locking hole. When the transmitting end and receiving end of the docking sensor dock with each other, the push rod is activated.

2. The clamping assembly for power transmission in power towers according to claim 1, characterized in that: The moving mechanism is provided in two sets, and the two sets of moving mechanisms are symmetrically arranged on the base frame.

3. A clamping assembly for power transmission in power towers according to claim 1, characterized in that: The lifting mechanism includes a lifting push rod and a level. The level is installed on the base frame and is used to determine whether the base frame is in a horizontal state. The two ends of the lifting push rod are respectively connected to the fixed wheel and the base frame.

4. A clamping assembly for power transmission in power towers according to claim 3, characterized in that: An adjustment motor is provided at one end of the lifting push rod, and the adjustment motor is used to adjust the angle of the lifting push rod.

5. A clamping assembly for power transmission in power towers according to claim 1, characterized in that: The clamping block is provided with a conveying hole, and a plurality of mounting holes are provided around the conveying hole. The feeding device is disposed in the mounting holes.

6. A clamping assembly for power transmission in power towers according to claim 5, characterized in that: The feeding device includes a rotary motor, a rubber block, and a feeding push rod. The two ends of the feeding push rod are respectively connected to the mounting hole and the rubber block. The rubber block is connected to a connecting rod, and the connecting rod is connected to the rotary motor. The rotary motor is used to drive the connecting rod to rotate, thereby driving the rubber block to rotate.

7. A clamping assembly for power transmission in power towers according to claim 1, characterized in that: A camera is installed on the base frame.

8. A clamping assembly for power transmission in power towers and its method of use, characterized in that: Using the clamping assembly described in claims 1-7, one end of the cable is placed in the conveying hole in the clamping block during use. The distance of the feeding push rod is adjusted according to the diameter of the cable, causing the rubber block to extend inward and clamp the cable simultaneously. The rotating motor is started to convey the cable forward one distance. Then, the clamping push rod is retracted to separate the fixed wheels. The original cable is inserted between the two fixed wheels. Then, the connecting rod is activated to connect the original cable between the two fixed wheels. When the connecting rod is inserted to the bottom of the insertion hole, the pressing rod will be compressed. At this time, the first return spring is stretched and the second return spring is stretched. The locking rod is squeezed by the pressing rod and pops out of the cavity into the locking hole, thereby restricting the relative movement of the connecting rod and the fixed wheels. When the locking rod is inserted into the locking hole, the transmitting end and the docking end of the docking sensor will dock with each other. At this time, the push rod will push the friction block to move. This enhances the friction between the connecting rod and the cable. As the entire assembly moves along the cable, the movement is affected by wind and cable swaying due to the distance between the two power towers during the movement. However, the fixed wheel clamps the cable, so the original cable and the cable to be installed are relatively stationary in the axial direction, resulting in minimal swaying. But during the movement, as the cable to be installed elongates, the original cable will bend to a certain extent, which will increase the swaying of the entire assembly. At this time, the lifting push rod and the adjusting motor will be activated, and the rotating motor will be activated to adjust the length of the clamped cable and adjust the level of the entire assembly to keep the base frame balanced. When the next power tower is reached, the lifting push rod moves the cable (base frame) to the same level as the worker, and then the corresponding rotating motor is activated to deliver the cable to the worker for installation.

Images