Opening and closing pin supplementing device and method applied to overhead power transmission and distribution line

Abstract

The invention discloses an overhead power transmission and distribution line opening and closing pin supplementing device and method, and belongs to the field of power transmission and distribution line auxiliary tools. The device comprises an insulating operating rod and an opening and closing pin mounting mechanism detachably connected to the top of the insulating operating rod, and the mounting mechanism comprises a device shell, an electric push rod, a clamping block, a guide structure, a camera and mobile phone support and a replaceable pin locking head. The method comprises the following steps: preparing, approaching, implanting, withdrawing and locking to realize supplementary mounting, observing and positioning by virtue of a camera in operation, and remotely controlling an electric push rod to push a pin. According to the device and the method, power failure is not needed, the safe distance between operators and electrified equipment is guaranteed, the problems of complex operation, low success rate and high safety risk of traditional operation are solved, the repair efficiency and reliability are greatly improved, the operation threshold is reduced, the device and the method adapt to complex working conditions, economic loss is reduced, and power grid operation safety is guaranteed.

Description

Technical Field

[0001] This application relates to the field of auxiliary tools for overhead power transmission and distribution lines, specifically to a device and method for installing opening and closing pins for overhead power transmission and distribution lines. Background Technology

[0002] In overhead transmission and distribution lines with voltage levels of 10kV and above, cotter pins are critical mechanical anti-loosening and anti-detachment components. They are widely used in tension clamps, equipment clamps, and other key force-bearing connection points that withstand dynamic loads and vibrations. They are used to lock and fix connecting bolts or pins, preventing them from rotating or slipping out axially. These connection points bear enormous longitudinal tension of the line. If the cotter pins are lost, it may cause the bolts or pins to loosen or come out, leading to serious accidents such as the detachment of insulator strings and conductors, and even causing chain reactions such as equipment failure and fires.

[0003] Currently, the loss of opening (closing) pins is considered a serious or critical defect. Critical defects must be addressed within 24 hours, and serious defects should be addressed within one week. Traditional handling methods have significant drawbacks: if power outages are chosen, coordination is difficult and results in substantial economic losses; if live-line work is used, existing tools are complex to operate, requiring highly skilled personnel, and problems such as easy pin detachment, difficulty in alignment, and low installation success rate exist. Furthermore, personnel must be in close contact with high-voltage equipment, facing personal safety risks, and each operation is time-consuming, resulting in prolonged defect exposure.

[0004] Therefore, there is an urgent need for an open (closed) pin replacement device and method that can achieve uninterrupted power supply operation, is safe and reliable, easy to operate, and has a high installation success rate, in order to overcome the shortcomings of existing technologies. Summary of the Invention

[0005] In view of the technical problems mentioned in the background art above, the purpose of this invention is to provide a device and method for installing opening and closing pins for overhead power transmission and distribution lines.

[0006] To achieve the objectives of this invention, the technical solution provided by this invention is as follows: First aspect This application provides a device for installing opening and closing pins for overhead power transmission and distribution lines, including an insulating operating rod and an opening and closing pin installation mechanism; the opening and closing pin installation mechanism is detachably connected to the top of the insulating operating rod.

[0007] Furthermore, the opening and closing pin installation mechanism includes a device housing, within which an electric push rod, a power supply, and a controller are disposed. A guide cylinder is disposed at the upper end of the device housing, and a circular cavity is disposed inside the guide cylinder. The push rod of the electric push rod extends into the circular cavity of the guide cylinder. A guide block is connected to the upper part of the guide cylinder. The guide block has a square cavity inside and an extension block is disposed at the middle of one side of its upper end. Two limiting ears for clamping the opening and closing pin are disposed at the middle of the extension block. The mechanism also includes a clamping block, which includes a lower circular portion and an upper square block portion. The top of the square block portion has an arc-shaped groove for clamping the lower end of the opening and closing pin. The circular portion slides within the circular cavity, and the square block portion slides within the square cavity. The clamping block is pushed out by the electric push rod, thereby pushing the opening and closing pin into place.

[0008] Furthermore, a monitoring component mounting bracket is connected to the outside of the device housing, and a monitoring component is mounted on the monitoring component mounting bracket.

[0009] Furthermore, the monitoring component is a camera.

[0010] Furthermore, it also includes a mobile phone holder, which holds a mobile phone and connects the mobile phone to the monitoring component, or the mobile phone holder serves as a safety distance warning device.

[0011] Furthermore, the outer casing of the device is detachably connected to the stylus joint at the top of the insulating operating rod via a T-shaped stylus joint block.

[0012] Furthermore, it also includes a pin locking head, the lower end of which is provided with a locking head splice connector that can be used in conjunction with the splice connector at the top of the insulating operating rod, and the upper end is provided with a U-shaped notch.

[0013] Furthermore, an insulated handle is provided at the lower end of the insulated operating rod.

[0014] Second aspect This application provides a method for repairing and installing switching pins in overhead power transmission and distribution lines, which is implemented using a device for repairing and installing switching pins in overhead power transmission and distribution lines, and includes the following steps: Step 1: Preparation stage: Observe the working environment, install the opening and closing pin installation mechanism onto the insulating operating rod through the plum blossom joint and adjust it to a suitable angle, insert the new opening and closing pin into the clamping mechanism and lock it, and test the mechanism's operation through the remote control. Step 2: Approaching stage: The operator manipulates the insulated operating rod to slowly bring the opening and closing pin installation mechanism closer to the target pin hole, and receives the camera signal through the mobile phone to observe the relative position of the opening and closing pin and the pin hole; Step 3: Implantation stage: After the opening and closing pin is fully aligned with the pin hole, continue to push the insulated operating rod to make the top of the opening and closing pin enter the pin hole. Use the remote control to control the electric push rod to push the opening and closing pin completely into the pin hole until it is in place. Step 4: Retraction and Reset: Gently retract the insulated operating rod, detach it from the hardware, refill the opening and closing pins to proceed with the next point of reinstallation, and remove the device from the operating rod after the operation is completed.

[0015] Furthermore, it also includes the following: If the bolt is not tightened in step 1, resulting in the pin hole not being exposed, tighten the nut first using a remote-controlled insulated electric wrench before installing the opening and closing pin; Step 3 also includes a locking step: replace the opening and closing pin installation mechanism on the insulated operating rod with a pin locking head, lock the pin tail on one side and rotate it 90°, repeat the operation on the other side of the pin tail fork to complete the locking of the opening and closing pin.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention fundamentally improves operational safety: This device ensures a safe distance between operators and live equipment. By operating the insulated control rod, operators avoid the risks of close contact with high-voltage equipment that violates safe distances, the risk of pins falling from heights, and fatigue-related errors due to repeated attempts, thus greatly reducing the accident rate.

[0017] 2. This invention significantly improves installation success rate and work efficiency: The innovative "injection gun" mechanical structure and guiding design of this invention increase the probability of successful installation on the first attempt from extremely low to nearly 100%. The time required for a single operation is reduced from the traditional tens of minutes (and the possibility of failure) to within a few minutes, greatly reducing the exposure time of line defects and the maintenance window period.

[0018] 3. This invention significantly reduces the skill threshold and workload for operators: It simplifies complex tasks requiring extensive experience and hand-eye coordination into simple linear pushing movements. New employees can become proficient after short-term training, effectively solving the shortage of highly skilled personnel while greatly reducing the mental stress and physical exertion of operators.

[0019] 4. The present invention has excellent adaptability and reliability under working conditions: The built-in clamping mechanism of the present invention ensures the reliability of conveying under vibration environment; the high insulation integrated design ensures the safety of operation under complex weather conditions (such as humidity, light rain), and the overall environmental adaptability of the device is strong.

[0020] 5. This invention creates significant economic and social benefits: It avoids planned power outages to address such defects, reducing power loss and the socio-economic impact of power outages. Its high efficiency also directly reduces unit maintenance manpower and time costs. It quickly eliminates hidden dangers, greatly reducing the probability of major accidents such as tower collapses and line breaks due to missing pins, thus ensuring the operational reliability of the power grid backbone.

[0021] 6. This invention promotes the standardization and intelligentization of work processes: This device transforms a vague, experience-dependent work method into a standardized, trainable, and replicable process. It lays the foundation for future integration of more advanced sensing and control technologies and represents a significant step towards intelligent uninterrupted power supply operations. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the device structure provided in the embodiments of this application; In the diagram, there is an insulated operating rod 1, a mobile phone holder 2, and an opening / closing pin installation mechanism 3. Figure 2 This is a schematic diagram of the mobile phone holder structure in an embodiment of this application; Figure 3 This is a schematic diagram of the opening and closing pin installation mechanism in the embodiments of this application; In the figure, 4 is a plum blossom joint, 5 is a T-shaped plum blossom joint block, 6 is a device housing, 7 is a guide block, 8 is a monitoring component, and 9 is an opening and closing pin. Figure 4 This is a schematic diagram of the device housing structure in an embodiment of this application; Figure 5 This is a schematic diagram of the internal structure of the opening and closing pin installation mechanism in the embodiments of this application; In the figure, there is an electric push rod 10, a power supply 11, a controller 12, and a clamping block 13; Figure 6 This is a schematic diagram of the clamping block in an embodiment of this application; In the diagram, circular part 14 and square block part 15; Figure 7 This is a first schematic diagram of the structure of the guide block in an embodiment of this application; In the diagram, square cavity 16, limiting ear 17; Figure 8 This is a second schematic diagram of the structure of the guide block in an embodiment of this application; Figure 9 This is a schematic diagram of the structure of the insulating operating rod in an embodiment of this application; Figure 10 This is a first schematic diagram of the structure of the pin locking head provided in the embodiments of this application; In the diagram, there is a U-shaped notch, number 11. Figure 11This is a second schematic diagram of the structure of the pin locking head provided in the embodiments of this application; Figure 12 This is a first-state diagram showing the pin locking process using a pin locking head. Figure 13 This is a second-state diagram showing the pin locking process using a pin locking head. Detailed Implementation

[0023] 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 of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0024] like Figures 1-11 The diagram shows the structure of an embodiment provided in this application.

[0025] This embodiment provides a device for installing opening and closing pins for overhead power transmission and distribution lines, including an insulating operating rod 1 and an opening and closing pin installation mechanism 3; the opening and closing pin installation mechanism 3 is detachably connected to the top of the insulating operating rod 1.

[0026] The opening / closing pin mounting mechanism 3 includes a housing 6, inside which are an electric push rod 10, a power supply 11, and a controller 12. A guide cylinder is located at the upper end of the housing 6, and a circular cavity is located inside the guide cylinder. The push rod of the electric push rod 10 extends into the circular cavity of the guide cylinder. A guide block 7 is connected to the upper part of the guide cylinder. The guide block 7 has a square cavity 16 inside and an extension block located at the middle of one side of its upper end. Two limiting ears 17 for clamping the opening / closing pin 9 are located at the middle of the extension block. The mechanism also includes a clamping block 13, which includes a lower circular portion 14 and an upper square block portion 15. The top of the square block portion 15 has an arc-shaped groove for clamping the lower end of the opening / closing pin 9. The circular portion 14 slides within the circular cavity, and the square block portion 15 slides within the square cavity 16. The clamping block 13 is pushed out by the electric push rod 10, thereby pushing the opening / closing pin 9 into place.

[0027] It should be noted that the electric push rod smoothly and reliably transmits the thrust from the push motor to the opening (closing) pin and pushes it into place. One end of the clamping block is connected to the push rod of the push motor, and the other end is used to clamp the opening (closing) pin: the clamping block is responsible for firmly clamping the opening (closing) pin during the stroke and reliably releasing the pin when it reaches the target point.

[0028] It should be noted that this device is designed to improve the efficiency of opening (closing) pin replacement in high-voltage live-line work. Its highly integrated mechanical automation design reduces reliance on operators taking risks at heights or inefficiently handling power outages. This device transforms extremely risky and complex operations into a simple and reliable "push-and-drop" action for operators, greatly ensuring personal and grid safety, and significantly improving maintenance efficiency and power supply reliability. It is a revolutionary tool for solving the pain point of "small defects, big risks" in power operation and maintenance. On 10kV and above voltage transmission and distribution lines, the operator stands at a safe distance and securely installs the tool with the pre-installed opening / closing pin on the top of the insulated operating rod. After turning on the device switch, the controller receives a remote control signal and controls the extension and retraction of the push rod, which in turn extends and retracts the opening / closing pin, slowly bringing the guide mechanism at the front of the tool close to the hole of the missing pin on the conductor tension clamp. With the help of a camera for close-up observation, the tool quickly finds its position. The opening and closing pin is continuously and smoothly advanced via remote control. Upon sensing resistance, the motor automatically stops. A camera then checks whether the clamped pin has been accurately pushed into the pin hole and locked in place. The operator then retrieves the insulating rod, completing the installation in one go.

[0029] The device housing 6 is further connected to a monitoring component mounting bracket, on which a monitoring component 8, a camera, is mounted. The device also includes a phone holder 2, which holds a mobile phone and connects it to the monitoring component 8, or serves as a safety distance warning device.

[0030] To accurately detect when the pin has reached the hole, the device is equipped with a camera that can be connected to a mobile app. Users can visually view the open (closed) pin and hole position through their phones, ensuring a high success rate of installation and accurate measurement of the final installation status.

[0031] It should be noted that the phone holder can hold a phone, and the operator can directly observe the relative position of the open (closed) pin and the pin hole through the phone during the operation. When installing without power interruption, the phone holder can also serve as a safety distance warning device. The operator must operate below the phone position and maintain a sufficient safety distance.

[0032] The outer casing 6 of the device is detachably connected to the top of the insulating operating rod 1 via a T-shaped perforated joint block 5. The insulating operating rod is made of insulating material, which is low in quality and high in strength. The top of the operating rod is a perforated joint, which can adjust the angle between the operating rod and the opening and closing pin installation device, making it convenient for operators to install the opening and closing pin at different angles.

[0033] In addition, it also includes a pin locking head, the lower end of which is provided with a locking head plum blossom joint that can be used in conjunction with the plum blossom joint 4 at the top of the insulating operating rod 1, and the upper end is provided with a U-shaped notch 11.

[0034] When in use, the opening and closing pin mounting mechanism on the insulating operating rod can be disassembled and replaced with a locking head plum blossom connector to lock the opening and closing pin after installation.

[0035] An insulated handle is provided at the lower end of the insulated operating rod 1.

[0036] This embodiment also provides a method for repairing and installing opening and closing pins in overhead power transmission and distribution lines, which is achieved using the aforementioned device for repairing and installing opening and closing pins in overhead power transmission and distribution lines. Includes the following steps: Step 1: Preparation stage: Observe the working environment, install the opening and closing pin installation mechanism onto the insulating operating rod through the plum blossom joint and adjust it to a suitable angle, insert the new opening and closing pin into the clamping mechanism and lock it, and test the mechanism's operation through the remote control. Step 2: Approaching stage: The operator manipulates the insulated operating rod to slowly bring the opening and closing pin installation mechanism closer to the target pin hole, and receives the camera signal through the mobile phone to observe the relative position of the opening and closing pin and the pin hole; Step 3: Implantation stage: After the opening and closing pin is fully aligned with the pin hole, continue to push the insulated operating rod to make the top of the opening and closing pin enter the pin hole. Use the remote control to control the electric push rod to push the opening and closing pin completely into the pin hole until it is in place. Step 4: Retraction and Reset: Gently retract the insulated operating rod, detach it from the hardware, refill the opening and closing pins to proceed with the next point of reinstallation, and remove the device from the operating rod after the operation is completed.

[0037] If the bolt is not tightened in step (1) and the pin hole is not exposed, tighten the nut with a remote-controlled insulated electric wrench before filling the opening and closing pins. Step (3) is followed by a locking step: replace the opening / closing pin mounting mechanism on the insulating operating rod with a pin locking head, lock one side of the pin tail by rotating 90°, repeat the operation on the other side of the pin tail fork, and complete the opening / closing pin locking. Figure 12 As shown in Figure 13.

[0038] Finally, it should be noted that the above embodiments are merely illustrative and explanatory of the present invention, and are not intended to limit the present invention to the scope of the described embodiments. Furthermore, those skilled in the art will understand that the present invention is not limited to the above embodiments, and many more variations and modifications can be made based on the teachings of the present invention, all of which fall within the scope of protection claimed by the present invention.

Claims

1. A device for replacing opening and closing pins in overhead power transmission and distribution lines, characterized in that, It includes an insulating operating rod (1) and an opening / closing pin mounting mechanism (3); the opening / closing pin mounting mechanism (3) is detachably connected to the top of the insulating operating rod (1).

2. The device for replacing opening and closing pins in overhead power transmission and distribution lines according to claim 1, characterized in that, The opening and closing pin installation mechanism (3) includes a device housing (6), inside which are installed an electric push rod (10), a power supply (11), and a controller (12); a guide cylinder is provided at the upper end of the device housing (6), and a circular cavity is provided inside the guide cylinder. The push rod of the electric push rod (10) extends into the circular cavity of the guide cylinder. A guide block (7) is connected to the upper part of the guide cylinder. A square cavity (16) is provided inside the guide block (7), and an extension block is provided at the middle part of one side of the upper end. The middle part is provided with two limiting ears (17) for clamping the opening and closing pin (9); it also includes a clamping block (13), which includes a lower circular part (14) and an upper square block part (15). The top of the square block part (15) is provided with an arc-shaped groove for clamping the lower end of the opening and closing pin (9); the circular part (14) slides in the circular cavity, and the square block part (15) slides in the square cavity (16); the clamping block (13) is pushed out by the electric push rod (10), thereby pushing the opening and closing pin (9) into place.

3. The device for replacing opening and closing pins in overhead power transmission and distribution lines according to claim 2, characterized in that, The outer side of the device housing (6) is also connected to a monitoring component mounting bracket, on which a monitoring component (8) is mounted.

4. The device for replacing the opening and closing pins of overhead power transmission and distribution lines according to claim 1, characterized in that, The monitoring component (8) is a camera.

5. A device for replacing opening and closing pins in overhead power transmission and distribution lines according to any one of claims 1-4, characterized in that, It also includes a mobile phone holder (2), which holds a mobile phone and connects the mobile phone to the monitoring component (8) or serves as a safety distance warning device.

6. The device for replacing opening and closing pins in overhead power transmission and distribution lines according to claim 5, characterized in that, The outer casing (6) of the device is detachably connected to the top of the insulating operating rod (1) via a T-shaped plum blossom joint block (5).

7. A device for replacing opening and closing pins in overhead power transmission and distribution lines according to claim 6, characterized in that, It also includes a pin locking head, the lower end of which is provided with a locking head plum blossom joint that can be used in conjunction with the plum blossom joint (4) at the top of the insulating operating rod (1), and the upper end is provided with a U-shaped notch (11).

8. A device for replacing opening and closing pins in overhead power transmission and distribution lines according to any one of claims 1-4, characterized in that, An insulated handle is provided at the lower end of the insulated operating rod (1).

9. A method for installing replacement pins for overhead transmission and distribution lines, implemented using the replacement pin device for overhead transmission and distribution lines as described in any one of claims 1-8, characterized in that... Includes the following steps: Step 1: Preparation stage: Observe the working environment, install the opening and closing pin installation mechanism (3) onto the insulating operating rod (1) through the plum blossom joint (4) and adjust it to a suitable angle, install the new opening and closing pin (9) into the clamping mechanism and lock it, and test the mechanism action through the remote control. Step 2: Approaching stage: The operator manipulates the insulating operating rod (1) to slowly bring the opening and closing pin installation mechanism (3) closer to the target pin hole, and observes the relative position of the opening and closing pin (9) and the pin hole by receiving the camera signal through the mobile phone. Step 3: Implantation stage: After the opening and closing pin (9) is fully aligned with the pin hole, continue to push the insulating operating rod (1) to make the top of the opening and closing pin (9) enter the pin hole. Control the electric push rod (10) through the remote control to make the electric push rod (10) push the opening and closing pin (9) completely into the pin hole until it is in place. Step 4: Retraction and Reset: Gently retract the insulating operating rod (1), detach it from the hardware, refill the opening and closing pins (9) to proceed with the next point of re-installation, and remove the device from the operating rod after the operation is completed.

10. A method for installing switching pins in overhead power transmission and distribution lines according to claim 1, characterized in that, It also includes the following: If the bolt is not tightened in step 1, resulting in the pin hole not being exposed, first use a remote-controlled insulated electric wrench to tighten the nut before filling the opening and closing pin (9); Step 3 is followed by a locking step: replace the opening and closing pin installation mechanism (3) on the insulating operating rod (1) with a pin locking head, lock the pin tail on one side of the fork and rotate it 90°, repeat the operation on the other side of the pin tail fork, and complete the locking of the opening and closing pin (9).

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