Device for protecting overhead lines in mechanical de-icing
By installing elastic buffer components on the fixed connection parts of the mechanical de-icing device, the vibration force is dispersed, solving the problem of metal fatigue of conductors or ground wires caused by mechanical vibration, and realizing the protection of overhead lines.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANXI JIN INTELLIGENT SOURCE EQUIPMENT CO LTD
- Filing Date
- 2025-09-04
- Publication Date
- 2026-08-04
AI Technical Summary
During use, mechanical vibration de-icing devices may cause metal fatigue in overhead line conductors or ground wires, leading to the risk of strand breakage or wire breakage.
Elastic buffer components are installed on the fixed connection parts of the mechanical de-icing device. The vibration force is distributed to multiple fixed connection parts through the elastic buffer components, which reduces the shear force and torsional force on the conductor or ground wire and avoids excessive stress on a single point.
It effectively reduces metal fatigue caused by mechanical vibration in conductors or ground wires, prevents strand breakage or wire breakage, and extends the service life of the line.
Smart Images
Figure CN224596123U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of anti-icing and de-icing technology for overhead power transmission lines or railway contact networks, and in particular to a device for protecting overhead lines in mechanical de-icing. Background Technology
[0002] Overhead power line icing has long been a serious natural disaster affecting power systems both domestically and internationally. Mechanical de-icing is a conventional method for preventing and removing ice from overhead lines. Utility models such as "Mechanical Vibration De-icing Device" (CN201417921Y), "Overhead Cable Air Explosion Vibration De-icing Device" (CN201549858U), and "A Mechanical Vibration De-icing Device for Overhead Ground Wires" (CN201247941Y) all operate on the principle of driving the vibration of overhead line conductors or ground wires through energy units and mechanical mechanisms to achieve anti-icing and de-icing. In response, the state has also issued corresponding industry standards, such as the "Technical Guidelines for the Use of Mechanical Vibration De-icing Devices for Overhead Transmission Line Conductors and Ground Wires" (DL / T 1922-2018), which specifies the relevant procedures and methods for de-icing operations.
[0003] The invention patents, including "Anti-icing and De-icing Device, Spacer, System and Anti-galloping System Based on Gravity Change" (CN115642555A), "Anti-icing and De-icing Device, Spacer, Post Insulator and System for Overhead Lines" (CN115483658B), "Anti-icing and De-icing Device, Sub-conductor Spacer and System for Split Conductors of a Line" (CN115566623B), "Anti-icing and De-icing Device, Sub-conductor Spacer and System for Split Conductors of Overhead Lines" (CN115632367A), and "Anti-icing and De-icing Device, Spacer, Insulator and System" (CN115693570A), also adopt the anti-icing and de-icing route of mechanical vibration. Moreover, they have achieved a certain degree of automation, eliminating the need for manual intervention in the anti-icing and de-icing operations of overhead lines. Utility Model Content
[0004] In the actual operation of overhead lines, overhead cables are susceptible to metal fatigue due to wind vibration. National standards have been issued to conduct fatigue tests on overhead cables, such as the "Fatigue Test Method for Overhead Cables under Micro-Wind Vibration" (GB / T 40819-2021). Correspondingly, during mechanical de-icing, when mechanical vibration is applied to the overhead line conductors or ground wires, the conductors or ground wires will experience significant shear forces on both sides of the point of application. If mechanical vibration is applied periodically to the overhead line conductors or ground wires for a long period, the areas near the points of application will be repeatedly bent. Over time, this will cause metal fatigue in the overhead line conductors or ground wires, potentially leading to strand breakage or wire breakage in severe cases. Therefore, to prevent metal fatigue in overhead line conductors or ground wires that may be caused by mechanical vibration de-icing devices, this utility model proposes a device for protecting overhead lines during mechanical de-icing.
[0005] This utility model proposes a device for protecting overhead lines during mechanical de-icing, comprising: a first fixed connecting component, a second fixed connecting component, a third fixed connecting component, and an elastic buffer component; wherein,
[0006] The first fixed connection component, the second fixed connection component, and the third fixed connection component are used to be installed at intervals on an overhead line conductor or ground wire;
[0007] The first fixed connecting component is located between the second fixed connecting component and the third fixed connecting component; the first fixed connecting component is used to connect to the mechanical de-icing device that generates mechanical vibration; the elastic buffer component is fixedly connected to the first fixed connecting component; the elastic buffer component is movably connected to the second fixed connecting component and the third fixed connecting component;
[0008] The force generated by the vibration of the mechanical de-icing device acts on the first fixed connection component, and after being buffered by the elastic buffer component, it acts on the second and third fixed connection components to average and disperse the torque received at the position of the overhead line conductor or ground wire in contact with the first fixed connection component.
[0009] Optionally, the first fixed connection component includes a first clamping clamp, a fixing claw, and a first elastic buffer component connector; wherein,
[0010] The first clamping clamp is a rotary clamp or a wire-retrieving clamp; the first clamping clamp is used to fix the connection with the overhead line conductor or ground wire, the fixing claw is used to fix the connection with the mechanical de-icing device, and the fixing claw is fixedly connected to the first clamping clamp; a first elastic buffer component connector is provided on the outside of the first clamping clamp, and the first elastic buffer component connector is fixedly connected to the elastic buffer component.
[0011] Optionally, the second fixed connection component includes a second clamping clamp and a second elastic buffer component connector; wherein,
[0012] The second clamping clamp is a rotary clamp, a take-up clamp, or a regular clamp; the second clamping clamp is used to fix the connection with the overhead line conductor or ground wire, and a second elastic buffer component connector is provided on the outside of the second clamping clamp, and the second elastic buffer component connector is movably connected with the elastic buffer component.
[0013] Optionally, the third fixed connection component includes a third clamping clamp and a third elastic buffer component connector; wherein,
[0014] The third clamping clamp is a rotary clamp, a take-up clamp, or a regular clamp; the third clamping clamp is used to fix the connection with the overhead line conductor or ground wire, and a third elastic buffer component connector is provided on the outside of the third clamping clamp, and the third elastic buffer component connector is movably connected with the elastic buffer component.
[0015] Optionally, the second and third elastic buffer component connectors are connecting pipes, connecting rings, or clamps, so that the elastic buffer component is movably connected to the second and third fixed connecting components.
[0016] Optionally, when the first clamping clamp is a wire-retrieving clamp and the second and third clamping clamps are rotary clamps, in order to adapt to the height difference between the second and third clamping clamps and the first clamping clamp, a first support rod is provided on the first clamping clamp, and the first support rod is connected to the first elastic buffer component connector; a second support rod is provided on the second clamping clamp, and the second support rod is connected to the second elastic buffer component connector; and a third support rod is provided on the third clamping clamp, and the third support rod is connected to the third elastic buffer component connector.
[0017] Optionally, the first clamping clamp of the first fixed connecting component is provided with a plurality of first elastic buffer component connectors, the second clamping clamp of the second fixed connecting component is provided with a plurality of second elastic buffer component connectors, and the third clamping clamp of the third fixed connecting component is provided with a plurality of third elastic buffer component connectors; wherein,
[0018] A first elastic buffer component connector provided on the first clamping wire clamp, a corresponding second elastic buffer component connector provided on the second clamping wire clamp, and a corresponding third elastic buffer component connector provided on the third clamping wire clamp are combined to form a set of elastic buffer component connector assemblies; the number of elastic buffer component connector assemblies is equal to the number of first elastic buffer component connectors provided on the first clamping wire clamp.
[0019] The first, second, and third elastic buffer component connectors in each elastic buffer component connection assembly are connected by elastic buffer components.
[0020] Optionally, limiting components are provided at both ends of the elastic buffer component. The limiting components can respectively limit and cooperate with the second elastic buffer component connector or the third elastic buffer component connector to prevent the second elastic buffer component connector and the third elastic buffer component connector from separating from the elastic buffer component due to the bending of the elastic buffer component.
[0021] Optionally, it also includes a torsion buffer mechanism; wherein,
[0022] The torsion buffer mechanism includes a first torsion buffer component and a second torsion buffer component; the first end of the first torsion buffer component is movably connected to the mechanical de-icing device, and the second end of the first torsion buffer component is fixedly connected to the first fixed connection component; the first end of the second torsion buffer component is movably connected to the mechanical de-icing device, and the second end of the second torsion buffer component is fixedly connected to the first fixed connection component.
[0023] By using the first and second torsion buffer components, when the mechanical de-icing device drives the first fixed connection component to rotate, the torsional force generated by the first fixed connection component on the overhead line conductor or ground wire is transferred, thereby preventing the torsional force generated by the first fixed connection component on the overhead line conductor or ground wire from causing damage to the overhead line conductor or ground wire.
[0024] Optionally, it also includes a torsion buffer mechanism; wherein,
[0025] The torsion buffer mechanism includes a first torsion buffer component and a second torsion buffer component;
[0026] The mechanical de-icing device is provided with a first extension end and a second extension end. The first extension end is movably connected to the first end of the first torsion buffer component, and the second extension end is movably connected to the first end of the second torsion buffer component. The second end of the first torsion buffer component is fixedly connected to the second fixed connection component, and the second end of the second torsion buffer component is fixedly connected to the third fixed connection component.
[0027] By using the first and second torsion buffer components, when the mechanical de-icing device drives the first fixed connection component to rotate, the torsional force generated by the first fixed connection component on the overhead line conductor or ground wire is transferred, thereby preventing the torsional force generated by the first fixed connection component on the overhead line conductor or ground wire from causing damage to the overhead line conductor or ground wire.
[0028] Unlike existing technologies, the mechanical de-icing device of this invention for protecting overhead power lines includes a first fixed connecting component, a second fixed connecting component, a third fixed connecting component, and an elastic buffer component installed on the overhead power line conductor or ground wire. The second and third fixed connecting components are located on either side of the first fixed connecting component. The elastic buffer component is fixedly connected to the first fixed connecting component and movably connected to the second and third fixed connecting components. When the force generated by the vibration of the mechanical de-icing device is applied to the first fixed connecting component, the elastic buffer component buffers and disperses the force to the first, second, and third fixed connecting components, thereby reducing the shear force at the contact point between the conductor or ground wire and the first fixed connecting component. This achieves buffering and dispersion of the force, and also serves to average and disperse torque, thus protecting the conductor or ground wire.
[0029] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0030] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:
[0031] Figure 1 This is a schematic diagram of the structure of a device for protecting overhead lines in mechanical de-icing provided by this utility model.
[0032] Figure 2 This is a schematic diagram of the structure of the first fixed connection component in a device for protecting overhead lines during mechanical de-icing provided by this utility model, when a rotary clamp is used.
[0033] Figure 3 This is a schematic diagram of the structure of the first fixed connection component in a device for protecting overhead lines during mechanical de-icing provided by this utility model.
[0034] Figure 4 This is a schematic diagram of the structure of the second fixed connection component in a device for protecting overhead lines during mechanical de-icing provided by this utility model.
[0035] Figure 5 This is a structural schematic diagram of the third fixed connection component in a device for protecting overhead lines during mechanical de-icing provided by this utility model.
[0036] Figure 6 This is a schematic diagram of the structure of the first elastic buffer component connector in a device for protecting overhead lines during mechanical de-icing provided by this utility model.
[0037] Figure 7 This is a schematic diagram illustrating the force exerted by a rotary clamp on the overhead line conductor or ground wire in a mechanical de-icing device for protecting overhead lines, as provided by this utility model.
[0038] Figure 8 This is a schematic diagram of the structure of a device for protecting overhead lines in mechanical de-icing provided by this utility model, where the first fixed connecting component is a wire clamp.
[0039] Figure 9 This utility model provides a schematic diagram of the structure of a device for protecting overhead lines in mechanical de-icing, which includes a connection assembly of two sets of elastic buffer components.
[0040] Figure 10 This is a schematic diagram of an embodiment of a device for protecting overhead lines in mechanical de-icing provided by this utility model, which includes a torsion buffer component.
[0041] Figure 11 This is a schematic diagram of another embodiment of a device for protecting overhead lines in mechanical de-icing provided by this utility model, in which a torsion buffer component is provided.
[0042] In the diagram, 1. First fixed connecting component; 2. Second fixed connecting component; 3. Third fixed connecting component; 4. Elastic buffer component; 11. First clamping clamp; 12. Fixing claw; 13. First elastic buffer component connector; 14. First support rod; 21. Second clamping clamp; 22. Second elastic buffer component connector; 23. Second support rod; 31. Third clamping clamp; 32. Third elastic buffer component connector; 33. Third support rod; 41. First limiting component; 42. Second limiting component; 51. The first... 51. Torsional buffer component; 52. Second torsional buffer component; 53. Connector to the first torsional buffer component; 54. Connector to the second torsional buffer component; 55. Connector to the third torsional buffer component; 56. Connector to the fourth torsional buffer component; 61. First extension end; 62. Second extension end; H. Rotary clamp; D. Overhead line conductor or ground wire; F1 and F2 are the directions of the force exerted by the rotary clamp H on the overhead line conductor or ground wire D; F3 and F4 are the locations where metal fatigue occurs on the overhead line conductor or ground wire D. Detailed Implementation
[0043] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0044] like Figure 1 As shown, this utility model embodiment provides a device for protecting overhead lines in mechanical de-icing, including: a first fixed connecting component 1, a second fixed connecting component 2, a third fixed connecting component 3, and an elastic buffer component 4.
[0045] The first fixed connection component 1, the second fixed connection component 2, and the third fixed connection component 3 are used to be installed at intervals on an overhead line conductor or ground wire. Figure 1 The D shown refers to the overhead line conductor or ground wire for which the first fixed connection component 1, the second fixed connection component 2, and the third fixed connection component 3 are installed.
[0046] The first fixed connecting component 1 is located between the second fixed connecting component 2 and the third fixed connecting component 3; the first fixed connecting component 1 is used to connect with the mechanical de-icing device that generates mechanical vibration; the elastic buffer component 4 is fixedly connected to the first fixed connecting component 1; the elastic buffer component 4 is movably connected to the second fixed connecting component 2 and the third fixed connecting component 3.
[0047] The force generated by the vibration of the mechanical de-icing device acts on the first fixed connection component 1, and after being buffered by the elastic buffer component 4, it acts on the second fixed connection component 2 and the third fixed connection component 3.
[0048] like Figure 2 As shown, the device for protecting overhead lines provided by this utility model is used in conjunction with a spacer bar. In some embodiments of this utility model, the first fixed connection component 1 is a rotary clamp, which is connected to a spacer bar through the fixing claw of the rotary clamp. At the same time, a mechanical de-icing device that generates mechanical vibration is fixedly installed on the spacer bar.
[0049] Depending on the application scenario, different types of spacers are used, differing primarily in the number of clamps used to connect overhead line conductors or ground wires. Specifically, the spacer may have 2, 3, 4, 6, 8, or 10 clamps. The device for protecting overhead lines in this invention is configured in conjunction with each clamp included in the spacer. This embodiment illustrates the device for protecting overhead lines using a single clamp as an example.
[0050] Furthermore, in an embodiment of this utility model, on the overhead line conductor or ground wire, a second fixed connection component 2 and a third fixed connection component 3 are respectively provided on both sides of the first fixed connection component 1 connected to the mechanical de-icing device. In other embodiments of this utility model, multiple components with the same structure as the second fixed connection component 2 and the third fixed connection component 3 can be provided on both sides of the first fixed connection component 1. At the same time, the first fixed connection component 1 and the components on both sides are connected by an elastic buffer component 4. The elastic buffer component 4 is fixedly connected to the first fixed connection component 1 and movably connected to the other components.
[0051] like Figure 3 As shown, in a specific embodiment of this utility model, the first fixed connection component 1 includes a first clamping clamp 11, a fixing claw 12, and a first elastic buffer component connector 13; wherein,
[0052] The first clamping clamp 11 is used to fix the connection with the overhead line conductor or ground wire. The fixing claw 12 is fixedly connected to the first clamping clamp 11 and is also used to fix the connection with the mechanical de-icing device to achieve a relatively fixed connection between the mechanical de-icing device and the overhead line conductor or ground wire. The first elastic buffer component connector 13 is provided on the outside of the first clamping clamp 11, and the first elastic buffer component connector 13 is fixedly connected to the elastic buffer component 4.
[0053] like Figure 4 As shown, in a specific embodiment of this utility model, the second fixed connection component 2 includes a second clamping wire clamp 21 and a second elastic buffer component connector 22; wherein,
[0054] The second clamping clamp 21 is used to fix the overhead line conductor or ground wire. The second clamping clamp 21 is provided with a second elastic buffer component connector 22 on the outside. The second elastic buffer component connector 22 is movably connected to the elastic buffer component 4.
[0055] like Figure 5 As shown, in a specific embodiment of this utility model, the third fixed connection component 3 includes a third clamping wire clamp 31 and a third elastic buffer component connector 32; wherein,
[0056] The third clamping clamp 31 is used to fix the connection with the overhead line conductor or ground wire. The third elastic buffer component connector 32 is provided on the outside of the third clamping clamp 31. The third elastic buffer component connector 32 is movably connected with the elastic buffer component 4.
[0057] Figure 4 and Figure 5 The second fixed connection component 2 and the third fixed connection component 3 shown in the figure adopt the same structure.
[0058] In a specific embodiment of this utility model, the elastic buffer component 4 includes an elastic metal rod, and the material used to manufacture the elastic buffer component 4 is carbon steel or alloy steel.
[0059] like Figure 2 As shown, after the first clamping clamp 11, the second clamping clamp 21, and the third clamping clamp 31 are fixed to the overhead line conductor or ground wire, the first elastic buffer component connector 13, the second elastic buffer component connector 22, and the third elastic buffer component connector 32 are at the same horizontal height, so that the metal rod of the elastic buffer component 4 can be connected to the first clamping clamp 11, the second clamping clamp 21, and the third clamping clamp 31 respectively, and the metal rod of the elastic buffer component 4 can be parallel to the overhead line conductor or ground wire held by the clamp.
[0060] In this utility model, the first clamping clamp 11 is a rotary clamp or a wire-retrieving clamp, the second clamping clamp 21 is a rotary clamp, a wire-retrieving clamp, or a regular clamp, and the third clamping clamp 31 is a rotary clamp, a wire-retrieving clamp, or a regular clamp. The rotary clamp is a clamp that is fixed by a pin, such as... Figure 3 The clamp shown is a rotary clamp; a wire clamp is a clamp that can extract electrical energy through the principle of electromagnetic induction. Figure 8 The first clamping clamp 11 shown is the wire-receiving clamp; the ordinary clamp involved in this utility model is a clamp that can be fixed to the overhead line conductor or ground wire. Figure 4 and Figure 5 The wire clamp shown is a standard wire clamp.
[0061] The first clamping clamp 11 and the fixing claw 12 in the first fixed connection component 1 form a rotary clamp, which can be reused as a clamp for spacers. The first clamping clamp 11 is used to clamp overhead line conductors or ground wires, and the fixing claw 12 is used to connect spacers. The second clamping clamp 21 and the third clamping clamp 31 are clamps with the same structure as the first clamping clamp 11, and are respectively disposed on both sides of the first clamping clamp 11. The connection method of the first clamping clamp 11, the second clamping clamp 21, and the third clamping clamp 31 with the overhead line conductors or ground wires is the same as the connection method of conventional rotary clamps with overhead line conductors or ground wires.
[0062] Specifically, when the first clamping clamp 11 is a wire-retrieving clamp, and the second clamping clamp 21 and the third clamping clamp 31 are non-wire-retrieving clamps (such as swivel clamps or ordinary clamps), in order to adapt to the height difference between the second clamping clamp 21, the third clamping clamp 31 and the first clamping clamp 11, a first support rod 14 is provided on the first clamping clamp 11, and the first support rod 14 is connected to the first elastic buffer component connector 13; a second support rod 23 is provided on the second clamping clamp 21, and the second support rod 23 is connected to the second elastic buffer component connector 22; and a third support rod 33 is provided on the third clamping clamp 31, and the third support rod 33 is connected to the third elastic buffer component connector 32.
[0063] like Figure 6 The diagram shows the connection between the first support rod 14 and the first elastic buffer component connector 13. The connection methods of the second elastic buffer component connector 22 and the second support rod 23, and the third elastic buffer component connector 32 and the third support rod 33 are similar to... Figure 6 The connection method between the first support rod 14 and the first elastic buffer component connector 13 is the same and will not be described again. In the embodiments of this utility model, the structures of the first elastic buffer component connector 13, the second elastic buffer component connector 23, and the third elastic buffer component connector 33 are set to the same structure. The first elastic buffer component connector 13, the second elastic buffer component connector 23, and the third elastic buffer component connector 33 can be configured as connecting pipes, connecting rings, or clamps. Both the second elastic buffer component connector 23 and the third elastic buffer component connector 33 are slidably fitted with the elastic buffer component 4, so that the elastic buffer component 4 is movably connected to the second fixed connecting component 2 and the third fixed connecting component 3. Figure 6 As shown, the second elastic buffer component connector 23 and the third elastic buffer component connector 33 are configured as connecting pipes. The first elastic buffer component connector 13 can also be configured as a connecting pipe, and the connecting pipe of the first elastic buffer component connector 13 is fixedly connected to the metal rod of the elastic buffer component 4.
[0064] In a specific embodiment of this utility model, the first support rod 14 is fixedly connected to the first clamping wire clamp 11 by welding, bonding or integral molding; the second support rod 23 is fixedly connected to the second clamping wire clamp 21 by welding, bonding or integral molding; and the third support rod 33 is fixedly connected to the third clamping wire clamp 31 by welding, bonding or integral molding.
[0065] To prevent excessive force from causing the movable connection between the second elastic buffer component connector 23 and / or the third elastic buffer component connector 33 and the elastic buffer component 4 to change from a connected state to a separated state, in some embodiments of this utility model, limiting components are provided at both ends of the metal rod of the elastic buffer component 4. These limiting components can respectively engage with the second elastic buffer component connector 23 or the third elastic buffer component connector 33 for limiting engagement. That is, the limiting component at one end of the elastic buffer component 4 can engage with the second elastic buffer component connector 23, and the limiting component at the other end of the elastic buffer component 4 can engage with the third elastic buffer component connector 33 for limiting engagement. Specifically, the limiting components can be provided by increasing the diameter of the portions at both ends of the metal rod of the elastic buffer component 4, making the diameter of the portions at both ends of the metal rod of the elastic buffer component 4 larger than the inner diameter of the connecting tube, or by adding components capable of limiting the movement at both ends of the elastic buffer component 4. For example... Figure 2 In this design, a first limiting component 41 and a second limiting component 42 are provided at both ends of the metal rod of the elastic buffer component 4. The first limiting component 41 and the second limiting component 42 can prevent the second fixed connecting component 2 and / or the third fixed connecting component 3 from separating from the metal rod of the elastic buffer component 4 due to the bending of the rod of the elastic buffer component 4.
[0066] In existing technologies, when only the slewing clamp attached to the spacer bar is designed to connect with the overhead line conductor or ground wire, its structure is as follows: Figure 7 As shown, during actual operation, under the influence of external forces such as the gravity of the spacer and wind, it will affect... Figure 7 The rotary clamp H in the middle generates forces as indicated by arrows F1 and F2. In the application scenario of this utility model, the force generated by the mechanical de-icing device acts on the rotary clamp H, which will drive... Figure 7 The overhead line conductor or ground wire D at the positions indicated by arrows F3 and F4 undergoes periodic and repeated bending movements, which can easily lead to metal fatigue at the location where the repeated bending occurs. Furthermore, although a rubber sleeve is installed at the contact point between the overhead line conductor or ground wire D and the slewing clamp H, if the instantaneous force exerted on the slewing clamp H by external forces in the directions indicated by arrows F1 and F2 is sufficiently large, shear force can still be generated at the contact point between the overhead line conductor or ground wire D and the slewing clamp H, potentially causing damage to the overhead line conductor or ground wire D due to shear force.
[0067] After the device for protecting overhead lines in this embodiment is installed, the first clamping clamp 11 in the first fixed connection component 1 is subjected to the following... Figure 7The forces acting in the directions of arrows F1 and F2, applied to the first elastic buffer component connector 13, are transmitted through the elastic buffer component 4 to the second elastic buffer component connector 22 and the third elastic buffer component connector 32. From there, they are transmitted via the second elastic buffer component connector 22 to the second fixed connection component 2, and via the third elastic buffer component connector 32 to the third fixed connection component 3. This effectively disperses the shearing and bending forces originally exerted by the first fixed connection component 1 on the overhead line conductor or ground wire to the second fixed connection component 2 and the third fixed connection component 3. The second fixed connection component 2 and the third fixed connection component 3 are fixedly installed on the overhead line conductor or ground wire. When they swing with the overhead line conductor or ground wire, they will not generate shear force on the overhead line conductor or ground wire. However, after being connected to the first fixed connection component 1 through the elastic buffer component 4, the shear force and bending force generated by the first fixed connection component 1 on the overhead line conductor or ground wire are dispersed. This disperses the shear force and bending force that originally acted on the same position of the overhead line conductor or ground wire to three different positions of the same overhead line conductor or ground wire. At the same time, it can also play the role of averaging and dispersing torque.
[0068] Research has shown that the magnitude of the force exerted on overhead line conductors or ground wires is not linearly related to the degree of damage to them, but rather more exponentially. Therefore, reducing the shear and bending forces on the same location of overhead line conductors or ground wires can effectively prevent damage to that location and thus effectively avoid damage to the overhead line conductors or ground wires.
[0069] In embodiments of this utility model, the first clamping clamp 11 in the first fixed connection component 1 can also be a power-generating clamp that achieves power extraction based on electromagnetic induction. The structure of setting the power-generating clamp as the first clamping clamp 11 is as follows: Figure 8 As shown. Since the structure of the wire clamp is different from that of the rotary clamp in the previous embodiment, it is necessary to adjust the lengths of the first support rod 14, the second support rod 23, and the third support rod 33 so that the first elastic buffer component connector 13, the second elastic buffer component connector 23, and the third elastic buffer component connector 33 are at the same height. This facilitates the connection between the elastic buffer component 4 and the first elastic buffer component connector 13, the second elastic buffer component connector 23, and the third elastic buffer component connector 33, and ensures that the metal rod of the elastic buffer component 4 is parallel to the overhead line conductor or ground wire.
[0070] Based on this, in other embodiments of the present invention, the first support rod 14, the second support rod 23, and the third support rod 33 can be configured as telescopic rods with adjustable lengths. By adjusting the lengths of the corresponding support rods, the first elastic buffer component connector 13, the second elastic buffer component connector 23, and the third elastic buffer component connector 33 can be at the same height, facilitating the connection between the metal rod of the elastic buffer component 4 and the first elastic buffer component connector 13, the second elastic buffer component connector 23, and the third elastic buffer component connector 33.
[0071] To further prevent damage to overhead line conductors or ground wires caused by shearing and bending forces, in this embodiment of the invention, the first clamping clamp 11 of the first fixed connecting component 1 is provided with multiple first elastic buffer component connectors 13, the second clamping clamp 21 of the second fixed connecting component 2 is provided with multiple second elastic buffer component connectors 22, and the third clamping clamp 31 of the third fixed connecting component 3 is provided with multiple third elastic buffer component connectors 32; wherein,
[0072] One of the first elastic buffer component connectors 13 provided on the first clamping clamp 11, one of the corresponding second elastic buffer component connectors 22 provided on the second clamping clamp 21, and one of the corresponding third elastic buffer component connectors 32 provided on the third clamping clamp 31 are combined to form a set of elastic buffer component connection assemblies; the number of elastic buffer component connection assemblies is equal to the number of first elastic buffer component connectors 13 provided on the first clamping clamp 11; the first elastic buffer component connector 13, the second elastic buffer component connector 22, and the third elastic buffer component connector 32 in each elastic buffer component connection assembly are connected by an elastic buffer component 4. Figure 1 The structure shown includes a set of elastic buffer component connection assemblies, while Figure 9 The structure shown illustrates the connection of two sets of elastic buffer components. In other embodiments of this invention, three or four sets of elastic buffer component connection components may also be provided, which will not be described in detail here.
[0073] In actual use, the first elastic buffer component connector 13, the second elastic buffer component connector 22 and the third elastic buffer component connector 32 in the same set of elastic buffer component connection assemblies can be connected by the metal rod of the same elastic buffer component 4, and after connection, the extension direction of the metal rod of the elastic buffer component 4 is parallel to the extension direction of the conductor or ground wire of the overhead line held by the first clamping clamp 11.
[0074] Figure 9The structure shown includes two elastic buffer component connection assemblies. Through the two sets of elastic buffer component connection assemblies, the shearing force and bending force of the overhead line conductor or ground wire subjected to the first clamping clamp 11 can be further dispersed, so as to avoid the overhead line conductor or ground wire breaking due to the shearing force generated between it and the first clamping clamp 11. At the same time, it can also prevent the overhead line conductor or ground wire from being damaged by metal fatigue due to the bending force generated by the swing of the clamp.
[0075] Furthermore, in other embodiments of this utility model, the number of second fixed connecting components 2 and third fixed connecting components 3 disposed on both sides of the first fixed connecting component 1 can be multiple, that is, at least two second fixed connecting components 2 are disposed on one side of the first fixed connecting component 1, and at least two third fixed connecting components 3 are disposed on the other side of the first fixed connecting component 1. Through the device of this embodiment, the force originally acting on the first fixed connecting component 1 can be distributed to multiple second fixed connecting components 2 and multiple third fixed connecting components 3 disposed on both sides of the first fixed connecting component 1. When the number of second fixed connecting components 2 and third fixed connecting components 3 increases, the actual force acting on the first fixed connecting component 1 will be further reduced, the shear force on the edge of the connection position between the overhead line conductor or ground wire and the first fixed connecting component 1 will also be further reduced, and the bending phenomenon caused by mechanical vibration of the overhead line conductor or ground wire will also be further weakened, thereby reducing the shear force and metal fatigue on both sides of the connection between the first fixed connecting component 1 and the overhead line conductor or ground wire, achieving the purpose of protecting the overhead line conductor or ground wire.
[0076] like Figure 10 As shown, in other embodiments of this utility model, the device for protecting overhead lines in mechanical de-icing also includes a torsion buffer mechanism;
[0077] The torsion buffer mechanism includes a first torsion buffer component 51 and a second torsion buffer component 52; the first end of the first torsion buffer component 51 is movably connected to the mechanical de-icing device, and the second end of the first torsion buffer component 51 is fixedly connected to the first fixed connection component 1; the first end of the second torsion buffer component 52 is movably connected to the mechanical de-icing device, and the second end of the second torsion buffer component 52 is fixedly connected to the first fixed connection component 1.
[0078] like Figure 10As shown, both the first torsion buffer component 51 and the second torsion buffer component 52 are rods with the same shape and structure as the elastic buffer component 4. When the first end of the first torsion buffer component 51 is connected to the mechanical de-icing device, a first torsion buffer component connector 53 and a second torsion buffer component connector 54 are provided on the mechanical de-icing device for movably connecting to the first end of the first torsion buffer component 51. The structure of these two components can follow that of other embodiments of this utility model, such as... Figure 5 The structure is shown. In this embodiment, the first end of the first torsion buffer component 51 is connected to the mechanical de-icing device through the first torsion buffer component connector 53, and the first end of the second torsion buffer component 52 is movably connected to the mechanical de-icing device through the second torsion buffer component connector 54. When the first torsion buffer component connector 53 and the second torsion buffer component connector 54 adopt the same structure as the first elastic buffer component connector 13, both the first torsion buffer component connector 53 and the second torsion buffer component connector 54 are connected to the mechanical de-icing device through support rods. In this embodiment of the present invention, the positional relationship between the first torsion buffer component 51 and the second torsion buffer component 52 and the overhead line conductor or ground wire can be set to a perpendicular relationship.
[0079] When the second ends of the first torsion buffer component 51 and the second ends of the second torsion buffer component 52 are respectively connected to the first fixed connecting component 1, they also adopt the same structure as the first torsion buffer component connector 53 and the second torsion buffer component connector 54, specifically configured as a third torsion buffer component connector 55 and a fourth torsion buffer component connector 56. Both are fixedly connected to the first fixed connecting component 1 via support rods, with the second end of the first torsion buffer component 51 fixedly connected to the third torsion buffer component connector 55, and the second end of the second torsion buffer component 52 fixedly connected to the fourth torsion buffer component connector 56. Specifically, the second end of the first torsion buffer component 51 is fixedly connected to the third torsion buffer component connector 55 by welding, bonding, threaded connection, or integral molding, and the second end of the second torsion buffer component 52 is fixedly connected to the fourth torsion buffer component connector 56 by welding, bonding, threaded connection, or integral molding. Figure 10 The cubic structure in the image represents a mechanical de-icing device.
[0080] Specifically, the mechanical de-icing device can be directly fixedly connected to the first fixed connecting component 1, or indirectly connected to the first fixed connecting component 1 through the first torsion buffer component 51 and the second torsion buffer component 52. When the mechanical de-icing device is subjected to a torsional force, this torsional force is transmitted to the first fixed connecting component 1, which is fixedly connected to it. Under the action of the torsional force, the first fixed connecting component 1 will exert a shearing force on the overhead line conductor or ground wire in contact with the first fixed connecting component 1, or bend at the point where the overhead line conductor or ground wire contacts the first fixed connecting component 1, which will also cause damage to the overhead line conductor or ground wire. In the embodiment of this utility model, through the first torsion buffer component 51 and the second torsion buffer component 52, when the mechanical de-icing device drives the first fixed connecting component 1 to rotate, the torsional force generated by the first fixed connecting component 1 on the overhead line conductor or ground wire is dispersed, avoiding damage to the overhead line conductor or ground wire caused by the torsional force generated by the first fixed connecting component 1 on the overhead line conductor or ground wire.
[0081] Furthermore, when the first fixed connecting component 1 uses an inductive wire clamp, the clamp has a certain width and can be used... Figure 10 The configuration described in the implementation scheme. When a standard wire clamp is used, its width is too narrow to accommodate certain wire clamps. Figure 10 Configure the settings as shown in the implementation scheme. At this point, for example... Figure 11 As shown, the mechanical de-icing device is provided with a first extension end 61 and a second extension end 62. The first extension end 61 and the second extension end 62 extend in a direction parallel to the overhead line conductor or ground wire. The first extension end 61 and the second extension end 62 are integrally formed with the mechanical de-icing device, or the two are fixedly connected to the mechanical de-icing device by welding.
[0082] The first extension end 61 is movably connected to the first end of the first torsion buffer component 51, and the second extension end 62 is movably connected to the first end of the second torsion buffer component 52; the second end of the first torsion buffer component 51 is fixedly connected to the second fixed connection component 2, and the second end of the second torsion buffer component 52 is fixedly connected to the third fixed connection component 3.
[0083] In this embodiment, when the mechanical de-icing device drives the first fixed connection component 1 to rotate through the first torsion buffer component 51 and the second torsion buffer component 52, the torsional force generated by the first fixed connection component 1 on the overhead line conductor or ground wire is transferred and dispersed to the first torsion buffer component 51 and the second torsion buffer component 52, thereby dispersing the torsional force on the first fixed connection component 1 and thus preventing the torsional force generated by the first fixed connection component 1 on the overhead line conductor or ground wire from causing damage to the overhead line conductor or ground wire.
[0084] Unlike existing technologies, this utility model discloses a device for protecting overhead power lines during mechanical de-icing. It includes a first fixed connecting component, a second fixed connecting component, a third fixed connecting component, and an elastic buffer component installed on the overhead power line conductor or ground wire. The second and third fixed connecting components are located on either side of the first fixed connecting component. The elastic buffer component is fixedly connected to the first fixed connecting component and movably connected to the second and third fixed connecting components. When the force generated by the vibration of the mechanical de-icing device is applied to the first fixed connecting component, the elastic buffer component buffers and distributes the force to the first, second, and third fixed connecting components, thereby reducing the shear force at the contact point between the conductor or ground wire and the first fixed connecting component. This achieves buffering and dispersion of the force, and also serves to average and disperse torque, thus protecting the conductor or ground wire.
[0085] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the terms are not necessarily directed at the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0086] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0087] Although embodiments of the present invention have been shown and described above, it is understood that the embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the embodiments within the scope of the present invention.
Claims
1. A device for protecting overhead lines in mechanical de-icing, characterized in that, include: The system comprises a first fixed connecting component, a second fixed connecting component, a third fixed connecting component, and an elastic buffer component; wherein, The first fixed connection component, the second fixed connection component, and the third fixed connection component are used to be spaced apart on an overhead line conductor or ground wire; The first fixed connecting component is located between the second fixed connecting component and the third fixed connecting component; the first fixed connecting component is used to connect to a mechanical de-icing device that generates mechanical vibration; the elastic buffer component is fixedly connected to the first fixed connecting component; the elastic buffer component is movably connected to the second fixed connecting component and the third fixed connecting component; The force generated by the vibration of the mechanical de-icing device acts on the first fixed connection component, and after being buffered by the elastic buffer component, it acts on the second fixed connection component and the third fixed connection component, so as to average and disperse the torque received by the overhead line conductor or ground wire at the position in contact with the first fixed connection component.
2. The device for protecting overhead lines in mechanical de-icing according to claim 1, characterised in that, The first fixed connection component includes a first clamping clamp, a fixing claw, and a first elastic buffer component connector; wherein, The first clamping clamp is a rotary clamp or a wire-retrieving clamp; the first clamping clamp is used to fix the overhead line conductor or ground wire, the fixing claw is used to fix the mechanical de-icing device, and the fixing claw is fixedly connected to the first clamping clamp; the first elastic buffer component connector is provided on the outside of the first clamping clamp, and the first elastic buffer component connector is fixedly connected to the elastic buffer component.
3. The device for protecting overhead lines in mechanical de-icing according to claim 2, characterised in that, The second fixed connection component includes a second clamping wire clamp and a second elastic buffer component connector; wherein, The second clamping clamp is a rotary clamp, a wire take-up clamp, or a regular clamp; the second clamping clamp is used to fix the overhead line conductor or ground wire, and the second elastic buffer component connector is provided on the outside of the second clamping clamp, and the second elastic buffer component connector is movably connected to the elastic buffer component.
4. The device for protecting overhead lines in mechanical de-icing according to claim 3, characterised in that, The third fixed connection component includes a third clamping wire clamp and a third elastic buffer component connector; wherein... The third clamping clamp is a rotary clamp, a wire take-up clamp, or a regular clamp; the third clamping clamp is used to fix the connection with the overhead line conductor or ground wire, and the third elastic buffer component connector is provided on the outside of the third clamping clamp, and the third elastic buffer component connector is movably connected to the elastic buffer component.
5. The device for protecting overhead lines in mechanical de-icing according to claim 4, characterized in that, The second and third elastic buffer component connectors are connecting pipes, connecting rings, or clamps, so that the elastic buffer component is movably connected to the second and third fixed connecting components.
6. The device for protecting overhead lines in mechanical de-icing according to claim 4, characterized in that, When the first clamping clamp is a wire-retrieving clamp, and the second and third clamping clamps are non-wire-retrieving clamps, in order to accommodate the height difference between the second and third clamping clamps and the first clamping clamp, a first support rod is provided on the first clamping clamp, and the first support rod is connected to the first elastic buffer component connector; a second support rod is provided on the second clamping clamp, and the second support rod is connected to the second elastic buffer component connector; and a third support rod is provided on the third clamping clamp, and the third support rod is connected to the third elastic buffer component connector.
7. The device for protecting overhead lines in mechanical de-icing according to claim 4, characterized in that, The first clamping clip of the first fixed connecting component is provided with a plurality of first elastic buffer component connectors; the second clamping clip of the second fixed connecting component is provided with a plurality of second elastic buffer component connectors; and the third clamping clip of the third fixed connecting component is provided with a plurality of third elastic buffer component connectors. One of the first elastic buffer component connectors provided on the first clamping clamp, one of the second elastic buffer component connectors correspondingly provided on the second clamping clamp, and one of the third elastic buffer component connectors correspondingly provided on the third clamping clamp combine to form a set of elastic buffer component connector assemblies; the number of elastic buffer component connector assemblies is equal to the number of first elastic buffer component connectors provided on the first clamping clamp. The first elastic buffer component connector, the second elastic buffer component connector, and the third elastic buffer component connector in each of the elastic buffer component connection assemblies are connected through the elastic buffer component.
8. The device for protecting overhead lines in mechanical de-icing according to claim 4, characterized in that, Limiting components are provided at both ends of the elastic buffer component. The limiting components can respectively limit and cooperate with the second elastic buffer component connector or the third elastic buffer component connector to prevent the second elastic buffer component connector and the third elastic buffer component connector from separating from the elastic buffer component due to the bending of the elastic buffer component.
9. The device for protecting overhead lines in mechanical de-icing according to claim 1, characterized in that, It also includes a torsion buffer mechanism; among which, The torsion buffer mechanism includes a first torsion buffer component and a second torsion buffer component; the first end of the first torsion buffer component is movably connected to the mechanical de-icing device, and the second end of the first torsion buffer component is fixedly connected to the first fixed connection component; the first end of the second torsion buffer component is movably connected to the mechanical de-icing device, and the second end of the second torsion buffer component is fixedly connected to the first fixed connection component. When the mechanical de-icing device drives the first fixed connecting component to rotate through the first torsion buffer component and the second torsion buffer component, the torsional force generated by the first fixed connecting component on the overhead line conductor or ground wire is dispersed, so as to avoid damage to the overhead line conductor or ground wire caused by the torsional force generated by the first fixed connecting component on the overhead line conductor or ground wire.
10. The device for protecting overhead lines in mechanical de-icing according to claim 1, characterized in that, It also includes a torsion buffer mechanism; among which, The torsion buffer mechanism includes a first torsion buffer component and a second torsion buffer component; The mechanical de-icing device is provided with a first extension end and a second extension end. The first extension end is movably connected to the first end of the first torsion buffer component, and the second extension end is movably connected to the first end of the second torsion buffer component. The second end of the first torsion buffer component is fixedly connected to the second fixed connection component, and the second end of the second torsion buffer component is fixedly connected to the third fixed connection component. When the mechanical de-icing device drives the first fixed connecting component to rotate through the first torsion buffer component and the second torsion buffer component, the torsional force generated by the first fixed connecting component on the overhead line conductor or ground wire is dispersed, so as to avoid damage to the overhead line conductor or ground wire caused by the torsional force generated by the first fixed connecting component on the overhead line conductor or ground wire.