Pin supplementing device for wire side of power transmission line

Abstract

The invention relates to the technical field of electric power maintenance tools, in particular to a pin supplementing device for a wire side of a power transmission line, which comprises an insulating rod, a first handle, a second handle, a first clamp head, a second clamp head, a guide plate, a pin lifting column and a connecting rope, and the first handle is fixedly mounted at the upper end of the insulating rod. The device is reasonable and compact in structure, non-contact insulation pin supplementing operation can be carried out on the ground, a safe distance between an operator and a live wire is kept, the double risks of high-altitude falling and electric shock are eliminated, by arranging the overhead column, the split pin can be conveniently installed, the forked end of the split pin can be opened, and the safety of the operator is improved. After a connecting rope is pulled on the ground, a guide plate can be driven to rotate around a second hinge shaft, and when the guide plate rotates, a guide column rotates along a first hinge shaft in a guide groove, so that a second plier head and a pin column rotate; the opening pin can be opened in the rotating process of the opening pin column, and operation is convenient.

Description

Technical Field

[0001] This invention relates to the field of power maintenance tools, specifically a pin repair device for the conductor side of power transmission lines. Background Technology

[0002] Since the large-scale construction of power grids began, cotter pins have played a crucial role as indispensable mechanical components. These components are typically made of materials such as stainless steel, galvanized steel, or copper alloys, possessing not only excellent corrosion resistance but also extremely high mechanical strength, enabling them to adapt to the complex and ever-changing operating environment of the power grid. One end of the cotter pin is forked; during installation, it is fully inserted into the corresponding component, and the forked end is bent to achieve a mechanical locking function, ensuring the stability of the connection.

[0003] The installation of cotter pins on the conductor side requires manual pulling of the conductor to complete the lead-out operation, during which the conductor tension must be maintained continuously. Existing cotter pins use a non-adaptive angle design, requiring manual adjustment of the angle between the pin body and the pin hole during installation (typically 90°±5°). Field tests show that the pass rate is only 68%. When the installation angle deviation exceeds 10°, the vibration resistance of the cotter pin decreases, and there is a risk of conductor displacement due to repeated adjustments.

[0004] Currently, in power grid line construction, the installation of cotter pins is mainly done manually. This traditional method has two significant problems: First, the installation quality is difficult to guarantee. If the cotter pin is not fully inserted or the bending is not correct, it is very easy for it to fall off under long-term vibration, posing a hidden danger to the safe operation of the power grid. Second, when installing cotter pins on the side of live conductors, workers must perform equipotential bonding. This process not only significantly increases the complexity of the work but also significantly increases the safety risks during the operation, placing stringent requirements on the professional skills and safety protection of the workers. When installing pins while the conductor is live, there is a lack of reliable insulation protection devices and fall protection measures. Operators must directly contact the live conductors, posing a risk of electric shock. At the same time, there are insufficient safety belt anchor points when working at heights and near edges, which can easily lead to falls from heights. Summary of the Invention

[0005] This invention provides a cotter pin device for the conductor side of a power transmission line, which overcomes the shortcomings of the prior art and can effectively solve the problems of low utilization rate and poor economic benefits of existing conductor side cotter pin installation.

[0006] The technical solution of the present invention is achieved through the following measures: a repair pin for the conductor side of a transmission line, comprising an insulating rod, a first handle, a second handle, a first clamp head, a second clamp head, a guide plate, a repair pin, and a connecting rope. The first handle is fixedly installed on the upper end of the insulating rod. The first clamp head is fixedly installed on the left side of the upper end of the first handle. A first hinge shaft is fixedly installed on the upper part of the first handle. The upper part of the second handle is rotatably mounted together with the first hinge shaft. The second clamp head is fixedly installed on the right side of the upper end of the second handle. A repair pin is fixedly installed on the rear side of the upper part of the second clamp head. The second hinge shaft is fixedly installed on the lower part of the first handle. A guide plate is rotatably installed on the outer side of the rear part of the second hinge shaft. An arc-shaped guide groove is provided on the left side of the guide plate. A guide pin with its front end fixedly mounted together with the rear side of the lower part of the second handle is provided in the guide groove. A connecting rope with its upper end fixedly connected to the left side of the guide plate is threaded through the insulating rod.

[0007] The following are further optimizations and / or improvements to the above-mentioned technical solution: A cylindrical fixing post can be fixedly installed on the upper rear side of the first clamp head, and the fixing post is tapered with a larger front and a smaller rear.

[0008] The upper right side of the first clamp head and the upper left side of the second clamp head may be provided with several grooves with opposite openings at intervals.

[0009] The guide plate can be L-shaped. The upper outer side of the insulating rod is provided with a rope hole that connects the inside and outside. The upper front side of the guide plate corresponding to the left position of the guide groove is provided with a connecting hole that connects the front and back. The upper end of the connecting rope passes through the rope hole and is fixedly connected to the connecting hole.

[0010] The upper end of the aforementioned insulating rod can be fixed with a connector, and the lower end of the first handle is fixed with a connecting plate. A damping hinge is installed between the connecting plate and the connector.

[0011] This invention features a reasonable and compact structure. By incorporating an insulating rod, non-contact insulation pin repair operations can be performed on the ground, ensuring a safe distance between workers and live conductors. This reduces the physical exertion of workers climbing towers at heights, eliminates the dual risks of falls and electric shock, meets the needs of power outage maintenance and live-line work, and completely eliminates the safety hazards of equipotential work. The addition of a support post facilitates the installation of cotter pins and allows for the opening of the forked ends of the cotter pins, ensuring the connection between the cotter pin and the screw and pin body. The guide plate and connecting rope, when pulled on the ground, cause the guide plate to rotate around the second hinge axis. As the guide plate rotates, the guide post rotates along the first hinge axis within the guide groove, thereby causing the second clamp and support post to rotate. The support post can then perform the cotter pin opening operation during rotation, making the operation convenient. Attached Figure Description

[0012] Appendix Figure 1 These are schematic diagrams of the main cross-sectional structure of embodiments one to five of the present invention.

[0013] Appendix Figure 2 These are schematic diagrams of the main structure after the insulating rod has been removed in embodiments one to five of the present invention.

[0014] Appendix Figure 3 This is a rear view diagram of the structure after the insulating rod has been removed in embodiments one to five of the present invention.

[0015] Appendix Figure 4 This is a right-side view of the structure after the insulating rod has been removed in embodiments one through five of the present invention.

[0016] The codes in the attached diagram are as follows: 1 is the insulating rod, 2 is the first handle, 3 is the second handle, 4 is the first hinge shaft, 5 is the first pliers head, 6 is the second pliers head, 7 is the second hinge shaft, 8 is the guide plate, 9 is the outlet post, 10 is the guide groove, 11 is the connecting rope, 12 is the fixing post, 13 is the groove, 14 is the rope hole, 15 is the connecting hole, 16 is the connector, 17 is the connecting plate, 18 is the damping hinge, and 19 is the guide post. Detailed Implementation

[0017] The present invention is not limited to the following embodiments, and specific implementation methods can be determined according to the technical solutions and actual conditions of the present invention.

[0018] In this invention, for ease of description, the description of the relative positions of the components is based on the appendix to the specification. Figure 1 The layout is described using a diagrammatic method, such as the positional relationships of front, back, top, bottom, left, and right, which are based on the instructions attached. Figure 1 The orientation of the layout is determined by the direction of the map.

[0019] The present invention will be further described below with reference to embodiments and accompanying drawings: Example 1: As shown in the attached document Figure 1 , 2 As shown in Figures 3 and 4, the repair pin for the conductor side of a transmission line includes an insulating rod 1, a first handle 2, a second handle 3, a first clamp head 5, a second clamp head 6, a guide plate 8, a support post 9, and a connecting rope 11. The first handle 2 is fixedly installed on the upper end of the insulating rod 1. The first clamp head 5 is fixedly installed on the left side of the upper end of the first handle 2. The first hinge shaft 4 is fixedly installed on the upper part of the first handle 2. The upper part of the second handle 3 is rotatably installed together with the first hinge shaft 4. The second clamp head 6 is fixedly installed on the right side of the upper end of the second handle 3. The support post 9 is fixedly installed on the rear side of the upper part of the second clamp head 6. The second hinge shaft 7 is fixedly installed on the lower part of the first handle 2. The guide plate 8 is rotatably installed on the outer side of the rear part of the second hinge shaft 7. The left side of the guide plate 8 is provided with an arc-shaped guide groove 10. The guide post 19, whose front end is fixedly installed together with the rear side of the lower part of the second handle 3, is provided in the guide groove 10. The connecting rope 11, whose upper end is fixedly connected to the left side of the guide plate 8, is threaded through the insulating rod 1.

[0020] According to the requirements, the insulating rod 1 is a known existing technology, such as an insulating operating rod or an insulating telescopic rod that can be detached and installed together in three sections. In this embodiment, an epoxy resin and glass fiber composite insulating tube with three sections screwed together is used. The working length can reach 4.5 meters, which meets the operation requirements of transmission towers of various voltage levels from 35kV to 220kV, and is also easy to store and carry quickly.

[0021] During use, by setting up the insulating rod 1, non-contact insulation pin repair operations can be performed on the ground, ensuring that workers maintain a safe distance from live wires, reducing the physical exertion of workers climbing towers at heights, eliminating the dual risks of falls and electric shocks, meeting the needs of power outage maintenance and live-line work, and completely eliminating the safety hazards of equipotential work. By setting up the support post 9, it is not only convenient to install cotter pins, but also to open the forked end of the cotter pin, ensuring the connection between the cotter pin and the screw and pin body. The setting of the guide plate 8 and the connecting rope 11 allows the guide plate 8 to rotate around the second hinge axis 7 after the connecting rope 11 is pulled on the ground. When the guide plate 8 rotates, the guide post 19 rotates along the first hinge axis 4 in the guide groove 10, thereby causing the second clamp head 6 and the support post 9 to rotate. The support post 9 can open the cotter pin during the rotation process, which is convenient to operate.

[0022] The aforementioned supplementary pins used on the conductor side of transmission lines can be further optimized and / or improved according to actual needs: Example 2: As an optimization of the above examples, as shown in the appendix. Figure 1 , 2 As shown in Figures 3 and 4, a cylindrical fixing post 12 is fixedly installed on the upper rear side of the first clamp head 5, and the auxiliary post 9 is a cone shape that is larger in the front and smaller in the back.

[0023] During use, the fixed post 12 can be inserted into the hole at the end of the cotter pin when installing it, making it convenient for workers to transport the cotter pin on the ground. The outlet post 9 can support the cotter pin that is fitted on the outside of the fixed post 12. The cotter pin can be placed on the outside of the outlet post 9 by its own weight, or it can be inserted into the forked end of the cotter pin. Then, pulling the connecting rope 11 will cause the left part of the connecting plate 17 to rotate downward around the second hinge axis 7. This will cause the second handle 3 and the second clamp head 6 to rotate around the first hinge axis 4. After the second clamp head 6 and the outlet post 9 rotate, the end of the cotter pin can be bent. Then, the insulating rod 1 can be moved forward to separate the cotter pin repairer used on the conductor side of the transmission line from the cotter pin, which can quickly realize the cotter pin repair operation.

[0024] Example 3: As an optimization of the above examples, as shown in the appendix. Figure 1 , 2As shown in Figures 1 and 3, the upper right side of the first clamp head 5 and the upper left side of the second clamp head 6 are provided with several grooves 13 with opposite openings spaced vertically.

[0025] According to the requirements, the upper right side of the first pliers head 5 is provided with several grooves 13 with openings facing to the right, and the upper left side of the second pliers head 6 is provided with a groove 13 with openings facing to the left, so as to tighten the loose nut.

[0026] Example 4: As an optimization of the above examples, as shown in the appendix. Figure 1 , 2 As shown in Figures 3 and 4, the guide plate 8 is L-shaped. The upper outer side of the insulating rod 1 is provided with a rope hole 14 that is connected inside and outside. The upper front side of the guide plate 8, which is located to the left of the guide groove 10, is provided with a connecting hole 15 that is connected from front to back. The upper end of the connecting rope 11 passes through the rope hole 14 and is fixedly connected to the connecting hole 15.

[0027] As required, the connecting rope 11 is a known electrical silk insulating rope, and the rope hole 14 is inclined from top to bottom from the outside to the inside. During use, the rope hole 14 is located on the outer side of the upper end of the insulating rod 1. By pulling the lower end of the connecting rope 11, the guide plate 8 can be rotated, thereby changing the opening angle of the first handle 2 and the second handle 3, making operation more convenient. To prevent the connecting rope 11 from being worn by the edge of the rope hole 14, a wear-resistant ring with an annular structure is fixed inside the rope hole 14.

[0028] Example 5: As an optimization of the above examples, as shown in the appendix. Figure 1 , 2 As shown in Figures 3 and 4, a connector 16 is fixed to the upper end of the insulating rod 1, and a connecting plate 17 is fixed to the lower end of the first handle 2. A damping hinge 18 is installed between the connecting plate 17 and the connector 16.

[0029] Based on the requirements, the damping hinge 18 is a known existing technology, such as the XG11 series damping shaft torque hinge. Both the upper end of the connector 16 and the lower side of the connecting plate 17 have mounting grooves, and both ends of the damping hinge 18 are installed in the corresponding mounting grooves. During use, this design allows adjustment of the angle between the first handle 2 and the insulating rod 1, enabling the disassembly and assembly of cotter pins at different angles, thus increasing its applicability.

[0030] The above technical features constitute various embodiments of the present invention, which have strong adaptability and implementation effect. Unnecessary technical features can be added or removed according to actual needs to meet the needs of different situations.

Claims

1. A manifold for use on the conductor side of a power transmission line, characterized in that... The device includes an insulating rod, a first handle, a second handle, a first pliers head, a second pliers head, a guide plate, a support post, and a connecting rope. The first handle is fixedly installed on the upper end of the insulating rod. The first pliers head is fixedly installed on the upper left side of the first handle. The first hinge shaft is fixedly installed on the upper part of the first handle. The upper part of the second handle is rotatably mounted to the first hinge shaft. The second pliers head is fixedly installed on the upper right side of the second handle. The support post is fixedly installed on the upper rear side of the second pliers head. The second hinge shaft is fixedly installed on the lower part of the first handle. The guide plate is rotatably mounted on the outer rear side of the second hinge shaft. The left side of the guide plate has an arc-shaped guide groove. The guide groove contains a guide post whose front end is fixedly mounted to the lower rear side of the second handle. A connecting rope with its upper end fixedly connected to the left side of the guide plate passes through the insulating rod.

2. The supplementary pin for the conductor side of a transmission line according to claim 1, characterized in that... A cylindrical fixing post is fixedly installed on the upper rear side of the first clamp head, and the opening post is a cone shape that is larger at the front and smaller at the back.

3. The supplementary pin for the conductor side of a transmission line according to claim 1 or 2, characterized in that... The upper right side of the first clamp head and the upper left side of the second clamp head have several grooves with opposite openings spaced vertically.

4. The supplementary pin for the conductor side of a transmission line according to claim 1 or 2, characterized in that... The guide plate is L-shaped. The upper outer side of the insulating rod has a rope hole that connects the inside and outside. The upper front side of the guide plate, corresponding to the left side of the guide groove, has a connecting hole that connects the front and back. The upper end of the connecting rope passes through the rope hole and is fixedly connected to the connecting hole.

5. The supplementary pin for the conductor side of a transmission line according to claim 3, characterized in that... The guide plate is L-shaped. The upper outer side of the insulating rod has a rope hole that connects the inside and outside. The upper front side of the guide plate, corresponding to the left side of the guide groove, has a connecting hole that connects the front and back. The upper end of the connecting rope passes through the rope hole and is fixedly connected to the connecting hole.

6. The supplementary pin for the conductor side of a transmission line according to claim 1, 2, or 5, characterized in that... A connector is fixed to the upper end of the insulating rod, and a connecting plate is fixed to the lower end of the first handle. A damping hinge is installed between the connecting plate and the connector.

7. The supplementary pin for the conductor side of a transmission line according to claim 3, characterized in that... A connector is fixed to the upper end of the insulating rod, and a connecting plate is fixed to the lower end of the first handle. A damping hinge is installed between the connecting plate and the connector.

8. The coupling pin for the conductor side of a transmission line according to claim 4, characterized in that... A connector is fixed to the upper end of the insulating rod, and a connecting plate is fixed to the lower end of the first handle. A damping hinge is installed between the connecting plate and the connector.

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