Paying-off grounding tackle for power transmission line erection

Abstract

A paying-off grounding tackle for power transmission line erection comprises a connecting plate, an elastic connecting assembly and a conductive wheel. Connecting ends are distributed on the connecting plate at equal intervals; the elastic connecting assembly comprises an upper connecting mechanism, a lower connecting mechanism and an elastic piece. The upper connecting mechanism is detachably connected to the connecting end, the lower connecting mechanism is detachably connected to the conductive wheel, and the upper end and the lower end of the elastic piece are connected to the upper connecting mechanism and the lower connecting mechanism respectively. In use, flexible contact is formed between the conductive wheel and a wire through the elastic piece, so that the impact force of the wire on the conductive wheel is reduced; the conductive wheel can be ensured to be fully attached and contacted with a wire, electrostatic induction current is ensured to be completely guided into the ground along the grounding pulley, the safety of line equipment and personnel is ensured, the friction between the conductive wheel and the wire can be reduced, and the friction loss of the wire is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission line erection, in particular to a wire laying grounding pulley for transmission line erection. Background Art

[0002] With the construction of new infrastructure, during the erection of transmission lines, there are more and more live alternating crossings. When the construction line is close to the live line, electrostatic induction and electromagnetic induction will occur. When a single-phase short circuit occurs in the live line, electromagnetic induction of zero-sequence current will also occur, and the induced current will directly endanger the safety of construction personnel and equipment. In order to ensure the safe construction of the project, a wire laying grounding pulley is usually used to solve the above problems. However, in the existing wire laying grounding pulley, a hard contact method is adopted between the pulley and the wire, resulting in a large friction between the conductive wheel on the wire laying grounding pulley and the wire during use, which is likely to cause wire wear. Summary of the Invention

[0003] In order to solve the technical problems existing in the above technology, in view of this, it is necessary to provide a wire laying grounding pulley for transmission line erection.

[0004] A wire laying grounding pulley for transmission line erection includes a connection plate, an elastic connection component, and a conductive wheel;

[0005] The connection plate is equidistantly provided with connection ends;

[0006] The elastic connection component includes an upper connection mechanism, a lower connection mechanism, and an elastic member; the upper connection mechanism is detachably connected to the connection end, the lower connection mechanism is detachably connected to the conductive wheel, and the upper and lower ends of the elastic member are respectively connected to the upper connection mechanism and the lower connection mechanism.

[0007] Preferably, the upper connection mechanism and the lower connection mechanism have the same structure. The upper connection mechanism includes a base plate and a cover plate; a fixing column that can be inserted and connected to the connection end is provided at the top of the base plate, and an arc-shaped groove is provided on the front surface of the base plate. The two ends of the arc-shaped groove bend towards the middle and penetrate the lower end of the base plate, and the cover plate is detachably installed on the front surface of the base plate.

[0008] Preferably, the elastic member includes a steel wire rope, and connection buckles that can be placed inside the arc-shaped groove are provided at both ends of the steel wire rope.

[0009] Preferably, the elastic member includes a spring, and connection rings that can be placed inside the arc-shaped groove are provided at both ends of the spring.

[0010] Preferably, the cover plate is fixed to the front surface of the base plate by screws.

[0011] Preferably, the fixing column is threadedly connected to the connection end.

[0012] Preferably, bolt holes are provided on the connection plate.

[0013] Compared with the prior art, the transmission line erection and wire laying grounding pulley provided by the present utility model includes a connection plate, an elastic connection component, and a conductive wheel; connection ends are equidistantly arranged on the connection plate; the elastic connection component includes an upper connection mechanism, a lower connection mechanism, and an elastic member; the upper connection mechanism is detachably connected to the connection end, the lower connection mechanism is detachably connected to the conductive wheel, and the upper and lower ends of the elastic member are respectively connected to the upper connection mechanism and the lower connection mechanism. When in use, a flexible contact is formed between the conductive wheel and the wire through the elastic member, reducing the impact force of the wire on the conductive wheel; not only can it ensure that the conductive wheel can be fully attached to the wire, ensuring that the electrostatic induction current is completely introduced into the ground along the grounding pulley to ensure the safety of line equipment and personnel, but also it can reduce the friction between the conductive wheel and the wire and reduce the wire friction loss. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0015] Figure 1 It is a schematic structural diagram of the present utility model.

[0016] Figure 2 It is a schematic structural diagram of the connection of the elastic connection component, the upper connection mechanism, and the lower connection mechanism of the present utility model.

[0017] Figure 3 It is a schematic structural diagram of the elastic member in the first embodiment of the present utility model.

[0018] Figure 4 It is a schematic structural diagram of the elastic member in the second embodiment of the present utility model.

[0019] Figure 5 It is a schematic structural diagram of the substrate of the present utility model.

[0020] In the figure: connection plate 01, elastic connection component 02, upper connection mechanism 21, substrate 211, cover plate 212, fixed column 213, arc groove 214, lower connection mechanism 22, elastic member 23, connection buckle 231, connection ring 232, conductive wheel 03, connection end 04, bolt hole 05. Detailed Embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] In the description of the present utility model, it should be understood that the terms "upper", "middle", "outer", "inner", "lower", etc. indicating the orientation or positional relationship are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0023] Please refer to Figure 1 、 Figure 2 The present utility model provides a grounding pulley for stringing and laying transmission lines, including a connection plate 01, an elastic connection assembly 02, and a conductive wheel 03; connection ends 04 are equidistantly arranged on the connection plate 01; for facilitating the installation of the grounding pulley on the stringing pulley, bolt holes 05 are also provided on the connection plate 01, and corresponding connection holes are also provided on the stringing pulley, and bolts can be used for fastening to achieve the quick installation, disassembly, and connection reliability of the grounding pulley and the stringing pulley. The elastic connection assembly 02 includes an upper connection mechanism 21, a lower connection mechanism 22, and an elastic member 23; the upper connection mechanism 21 is detachably connected to the connection end 04, the lower connection mechanism 22 is detachably connected to the conductive wheel 03, and the upper and lower ends of the elastic member 23 are respectively connected to the upper connection mechanism 21 and the lower connection mechanism 22. When in use, a flexible contact is formed between the conductive wheel 03 and the wire through the elastic member 23, reducing the impact force of the wire on the conductive wheel 03; not only can it ensure that the conductive wheel 03 can be fully attached to the wire, ensuring that the electrostatic induction current is completely introduced into the ground along the grounding pulley to ensure the safety of line equipment and personnel, but also it can reduce the friction between the conductive wheel 03 and the wire, reducing the wire friction loss.

[0024] Please refer to Figure 2 、 Figure 5 In an implementation manner, the upper connection mechanism 21 and the lower connection mechanism 22 have the same structure. The upper connection mechanism 21 includes a substrate 211 and a cover plate 212; a fixing column 213 that can be inserted and connected to the connection end 04 is provided at the top of the substrate 211; an arc-shaped groove 214 is provided on the front surface of the substrate 211, and both ends of the arc-shaped groove 214 bend towards the middle and penetrate the lower end of the substrate 211, and the cover plate 212 is detachably installed on the front surface of the substrate 211.

[0025] Please refer to Figure 3, in one embodiment, the elastic member 23 includes a steel wire rope, and connection buckles 231 that can be built into the arc-shaped grooves 214 are provided at both ends of the steel wire rope. During installation, the connection buckles 231 can be embedded into the arc-shaped grooves 214, and the cover plate 212 can be pressed and fixed on the front surface of the substrate 211 by screws, so as to connect the elastic member 23 to the upper connection mechanism 21 and the lower connection mechanism 22 respectively. During the wire laying process, the wire laying pulley and the grounding pulley of the angle tower are in a horizontal installation state. Through the rigidity of the steel wire rope, the bending degree under the action of gravity is effectively reduced, so that the offset of the conductive wheel 03 in the corresponding wire laying pulley groove is as small as possible, thereby ensuring the reliable connection between the conductive wheel 03 and the wire and the guide rope, and ensuring complete grounding. By designing a φ16 steel wire rope, the limitation of the wire laying direction is effectively solved. Through the flexibility of the steel wire rope, along the traveling direction of the wire or the guide rope (in on-site construction, the traction directions of the guide rope and the wire are opposite), the steel wire rope of the grounding pulley and the conductive wheel 03 swing along with the direction of the force. The grounding pulley will not be restricted by the traveling directions of the wire and the guide rope during the wire laying process, thereby optimizing the construction process and improving the construction efficiency.

[0026] Please refer to Figure 4 , in one embodiment, the elastic member 23 includes a spring, and connection rings 232 that can be built into the arc-shaped grooves 214 are provided at both ends of the spring. During installation, the connection rings 232 can be embedded into the arc-shaped grooves 214, and the cover plate 212 can be pressed and fixed on the front surface of the substrate 211 by screws, so as to connect the elastic member 23 to the upper connection mechanism 21 and the lower connection mechanism 22 respectively.

[0027] In one implementation manner, for the convenience of quick installation, disassembly and connection reliability, the cover plate 212 is fixed to the front surface of the substrate 211 by screws.

[0028] In one implementation manner, for quick installation, disassembly and connection reliability, the fixed column 213 is threadedly connected to the connection end 04.

[0029] In one implementation manner, different numbers of elastic connection components 02 can be installed on the connection plate 01, and each elastic connection component 02 corresponds to a connection conductive wheel 03, so as to realize the grounding of wire laying pulleys of different specifications and models such as three-wheel, five-wheel, seven-wheel and nine-wheel.

[0030] In one implementation manner, the size of the conductive wheel 03 is smaller than the width of the wire laying pulley groove. Through the connection of the steel wire rope, the conductive wheel 03 is placed in the pulley groove, and by using the elastic deformation restoring force of the steel wire rope, sufficient contact between various types of guide ropes and wires and the conductive wheel 03 is ensured, and it is ensured that the static induction current is completely introduced into the ground along the grounding pulley, ensuring the safety of line equipment and personnel.

[0031] The above-disclosed is only the preferred embodiment of the present utility model. Of course, it cannot be used to limit the scope of rights of the present utility model. Those of ordinary skill in the art can understand all or part of the processes of implementing the above embodiments, and the equivalent changes made according to the claims of the present utility model still fall within the scope covered by the utility model.

Claims

1. A grounding pulley for laying out a power transmission line, characterized in that: It includes a connecting plate, an elastic connecting component and a conductive wheel; The connecting plate is provided with connecting ends at equal intervals; The elastic connection assembly includes an upper connection mechanism, a lower connection mechanism, and an elastic member; the upper connection mechanism is detachably connected to the connecting end, the lower connection mechanism is detachably connected to the conductive wheel, and the upper end and the lower end of the elastic member are respectively connected to the upper connection mechanism and the lower connection mechanism.

2. The transmission line erection and laying grounding pulley according to claim 1, characterized in that: The upper connecting mechanism and the lower connecting mechanism have the same structure. The upper connecting mechanism includes a base plate and a cover plate. The top of the base plate is provided with a fixing column which can be inserted into and connected to the connecting end. An arc groove is provided on the front side of the base plate. Both ends of the arc groove are bent toward the middle and pass through the lower end of the base plate. The cover plate is detachably installed on the front side of the base plate.

3. The grounding pulley for laying out the transmission line according to claim 2, characterized in that: The elastic member comprises a steel wire rope, and connecting buckles which can be built into the arc groove are arranged at both ends of the steel wire rope.

4. The grounding pulley for laying out a power transmission line according to claim 2, characterized in that: The elastic member comprises a spring, and connecting rings which can be built into the arc groove are arranged at both ends of the spring.

5. The transmission line erection and laying grounding pulley according to claim 3 or 4, characterized in that: The cover plate is fixed to the front side of the base plate by screws.

6. The grounding pulley for laying out the transmission line according to claim 2, characterized in that: The fixing column is threadedly connected to the connecting end.

7. The grounding pulley for laying out a power transmission line according to claim 1, characterized in that: The connecting plate is provided with bolt holes.

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