Cable pole climbing device

Abstract

The utility model discloses a cable pole climbing device which comprises a cable pole and a hoop. The cable rod comprises a first rod section and a second rod section, the first rod section is located below the position away from the ground by a preset height, and the second rod section is located above the first rod section. A cable channel is formed in the first rod section, and the cable channel is used for enabling a cable on the ground to penetrate out of the first rod section above a preset height position after penetrating through the interior of the first rod section; the hoop is arranged on the second rod section and used for fixing the cable penetrating out of the first rod section.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, and in particular to a cable pole climbing device. Background Technology

[0002] In power systems, cable pole mounting devices are key components connecting ground cables and overhead lines, and their performance directly affects the reliability and safety of power transmission.

[0003] Traditional methods of cable hoisting have drawbacks. If the metal clamps and other fasteners used to secure cables are installed close to the ground, pedestrians may accidentally touch them during daily activities. This can easily cause personal injury and may also cause the fasteners to loosen due to collisions, rendering the cables unsecured. Utility Model Content

[0004] This utility model provides a cable climbing device to solve at least one defect in the prior art.

[0005] This utility model embodiment provides a cable pole climbing device, including:

[0006] Cable poles and clamps;

[0007] The cable pole includes a first pole segment and a second pole segment, wherein the first pole segment is located below a predetermined height from the ground, and the second pole segment is located above the first pole segment;

[0008] The first pole segment is provided with a cable channel, which is used to allow the ground cable to pass through the interior of the first pole segment and exit the first pole segment above the preset height position;

[0009] The clamp is installed on the second pole section and is used to secure the cable that passes through the first pole section.

[0010] Optionally, it may also include a cable sheath disposed within the cable channel.

[0011] Optionally, the inner wall of the cable sheath is provided with a plurality of longitudinal ribs;

[0012] The reinforcing bars are made of elastic rubber, and their height and width are evenly distributed along the axial direction of the cable sheath.

[0013] Optionally, the outlet end of the cable sheath is provided with a sealing device, which is used to waterproof and seal the outlet end of the cable sheath.

[0014] Optionally, the sealing device includes a sealing ring and a clamping ring, wherein the clamping ring clamps the sealing ring.

[0015] Optionally, the clamp is provided with a cable fixing clip for fixing the cable;

[0016] The cable clamp is an adjustable structure that can be adjusted according to the diameter of the cable.

[0017] Optionally, the inner diameter of the cable sheath is 1 to 2 times the diameter of the cable.

[0018] Optionally, the cable sheath includes an inner layer, a middle layer, and an outer layer;

[0019] The inner layer is made of polytetrafluoroethylene, the middle layer is made of rubber, and the outer layer is made of polyethylene.

[0020] Optionally, the cable sheath is provided with a support structure inside;

[0021] The support structure is a spiral metal wire or a spaced-out ring support, which is used to maintain the shape of the cable sheath.

[0022] Optionally, the cable sheath has a protective opening at its outlet end, which is made of a flexible material and is used to prevent the cable from being scratched or damaged when it is passed through.

[0023] Optionally, a grounding wire is also included, with one end connected to the clamp and the other end connected to the ground.

[0024] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model proposes a cable pole climbing device, which includes a cable pole with a first pole section. The first pole section contains a cable channel, allowing the cable on the ground to pass through the interior of the first pole section and exit above a predetermined height. By placing the portion of the cable on the ground side inside the cable pole and concealing the cable within the pole, the cable does not require clamps or other metal parts to secure it on the ground side of the pole. This prevents pedestrians from accidentally touching protruding metal parts during daily activities, thus avoiding accidents that could cause personal injury. Attached Figure Description

[0025] Figure 1 This is a side view of the cable climbing device in the embodiment;

[0026] Figure 2 This is a front view of the cable climbing device in the embodiment;

[0027] Figure 3 This is a schematic diagram of the cable channel in the embodiment. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0029] Figure 1 This is a side view of the cable climbing device in the embodiment. Figure 2 This is a front view of the cable climbing device in the embodiment. Figure 3 This is a schematic diagram of the cable channel in the embodiment, for reference. Figures 1 to 3 This embodiment proposes a cable pole climbing device, including:

[0030] Cable poles and clamps 104;

[0031] The cable pole includes a first pole section 101 and a second pole section 102. The first pole section 101 is located below a preset height from the ground, and the second pole section 102 is located above the first pole section 101.

[0032] The first pole segment 101 is provided with a cable channel 1. The cable channel 1 is used to allow the ground cable 103 to pass through the interior of the first pole segment and then exit the first pole segment 101 above a preset height position.

[0033] The clamp 104 is installed on the second pole section 102 and is used to fix the cable 103 that passes through the first pole section 101.

[0034] For example, in this solution, the first pole segment 101 and the second pole segment 102 can be made of high-strength steel or reinforced concrete. The first pole segment 101 and the second pole segment 102 can be manufactured as one piece or as separate pieces.

[0035] When manufacturing the cable pole in sections, the first pole segment 101 can be hoisted above the foundation and securely connected to the foundation using anchor bolts or welding. Then, a crane or other equipment can be used to lift the second pole segment 102 and connect it to the first pole segment 101.

[0036] Flange connection can be used for the connection. Flanges are welded to the joint ends of the first rod segment 101 and the second rod segment 102 respectively, and the two flanges are fastened together with bolts to ensure the sealing and stability of the joint.

[0037] For example, in this solution, there can be multiple clamps 104. Depending on the position where the cable 103 passes through the first pole segment 101 and the design requirements for cable laying, the installation positions of several clamps 104 can be marked on the second pole segment 102.

[0038] When installing cable 103, wrap clamp 104 around the marked position on the second pole segment 102, and adjust the position of clamp 104 so that the opening of clamp 104 faces upwards for easy bolt installation. Then, place cable 103 into the slot of clamp 104, ensuring that cable 103 is centered in the slot. Use the matching bolts, nuts, and washers to tighten both ends of clamp 104.

[0039] This embodiment proposes a cable pole climbing device, which includes a cable pole with a first pole section. The first pole section contains a cable channel, allowing the cable to pass through the interior of the first pole section and exit above a predetermined height. By placing the portion of the cable on the ground side inside the cable pole and concealing the cable within, the cable does not require external metal clamps or other fasteners to secure it on the ground side of the pole. This prevents pedestrians from accidentally touching protruding metal objects during daily activities, thus avoiding accidents that could cause injury.

[0040] Based on any of the aforementioned solutions, in one possible implementation, the cable pole climbing device further includes a cable sheath disposed within the cable channel.

[0041] For example, in this solution, the cable sheath is installed inside the cable pole, and the outlet end of the cable sheath is placed outside the cable pole at a preset height above the ground.

[0042] The cable enters the cable sheath from the ground and exits the cable pole from the outlet end. The cable exiting from the outlet end is fixed to the cable pole by a clamp.

[0043] For example, in this solution, a portion of the cable is installed inside the cable pole. The cable sheath serves as an isolation layer between the cable and the external environment. The cable sheath can prevent damage to the cable from external forces such as scratches, small animal bites, and unintentional collisions during construction, and prevent the internal conductors of the cable from being exposed or damaged, thereby ensuring the normal service life of the cable and the stability of power transmission.

[0044] For example, in this solution, the cable sheath can be completely hidden inside the cable pole. Specifically:

[0045] Multiple metal brackets are pre-installed inside the cable pole. These brackets can be fixed to the inner wall of the cable pole by welding or bolting. The shape and size of the brackets are designed according to the outer diameter of the cable sheath.

[0046] Place the cable sheath inside the cable pole, aligning it with each metal bracket, and then use rubber straps or metal clamps to secure the cable sheath to the metal brackets.

[0047] After the cable sheath is secured to the metal bracket, an insulating filler, such as expanded polyurethane foam, is filled into the gap between the cable sheath and the inner wall of the cable pole. This firmly fixes the cable sheath inside the cable pole and also provides further insulation and moisture protection.

[0048] Alternatively, the cable sheath can be partially concealed inside the cable pole, for example:

[0049] Drill holes in the cable pole beforehand that match the outer diameter of the cable sheath. The location and number of holes are determined based on the length of the cable sheath and installation requirements. Pass the cable sheath through these holes, leaving part inside the cable pole and part exposed outside. Install flanges on both the inner and outer sides of the cable pole, with bolt holes corresponding to the holes on the cable pole. Use bolts to pass through the holes in the flanges and cable pole, and then tighten the nuts to secure the cable sheath to the cable pole.

[0050] Alternatively, a groove can be machined inside the cable pole along the installation path of the cable sheath, with the shape of the groove matching the shape of the cable sheath. A portion of the cable sheath is inserted into the groove, allowing it to slide within it. Once the cable sheath reaches the predetermined position, a locking block is installed at the end of the groove. This block can be secured to the cable pole with bolts or clips to prevent the cable sheath from sliding out of the groove.

[0051] Alternatively, the cable sheath can be directly nested inside the cable pole, specifically:

[0052] The cable pole can be provided with a groove that matches the shape of the cable sheath, and the cable sheath can be directly embedded in the groove.

[0053] Based on any of the aforementioned schemes, in one possible implementation scheme, the inner wall of the cable sheath is provided with a number of longitudinal ribs; the ribs are made of elastic rubber, and their height and width are evenly distributed along the axial direction of the cable sheath.

[0054] In this design, several longitudinal ribs are installed on the inner wall of the cable sheath, extending along the length (axial direction) of the cable sheath. When the cable is inserted into the sheath, these longitudinal ribs provide a clear insertion path. Because the ribs are evenly distributed axially, the cable can smoothly pass through the channels formed by the ribs into the cable sheath, reducing the possibility of twisting or bending during insertion and improving the efficiency and accuracy of cable laying.

[0055] When the elastic rubber ribs come into contact with the cable surface, the rubber's good elasticity and low coefficient of friction effectively reduce the friction between the cable and the inner wall of the cable sheath. Compared to the cable directly contacting the rigid inner wall of the cable sheath, the presence of ribs reduces the resistance the cable experiences during insertion and subsequent use, lowering the risk of damage to the cable sheath due to friction and extending the cable's service life.

[0056] The reinforcing ribs can provide a certain degree of fixation for the cable. Due to their elasticity, the ribs exert a clamping force on the cable, keeping it in a relatively stable position inside the cable sheath. This prevents the cable from shaking or shifting freely within the sheath, ensuring the installation quality and operational stability of the cable.

[0057] Based on any of the aforementioned solutions, in one possible implementation, a sealing device is provided at the outlet end of the cable sheath, the sealing device being used for waterproof sealing of the outlet end of the cable sheath.

[0058] For example, in this solution, a sealing cavity can be set at the cable sheath outlet end. This is usually achieved by machining an annular groove on the outside of the cable sheath outlet end or by installing a specially designed sealing box.

[0059] An injection hole is provided on the sealing cavity for injecting sealant into it. After being injected, the sealant gradually cures, forming a sealing layer. The size and location of the injection hole should facilitate the injection process. After injection, a sealing plug is used to seal the injection hole to prevent sealant leakage and the entry of external debris.

[0060] In this solution, the sealing device prevents water from entering the cable sheath, reducing the risk of cable sheath corrosion and lowering maintenance and investment costs.

[0061] Based on the aforementioned cable sheath configuration sealing device scheme, in one possible implementation, the sealing device includes a sealing ring and a clamping ring, with the clamping ring clamping the sealing ring.

[0062] For example, in this solution, the sealing ring can be made of rubber material with good elasticity, weather resistance and waterproof performance, such as ethylene propylene diene monomer (EPDM) rubber, silicone rubber, etc.

[0063] Based on the cable's outer diameter and the inner diameter of the cable sheath outlet, accurately calculate the dimensions of the sealing ring, ensuring that its inner diameter is slightly smaller than the cable's outer diameter and its outer diameter is slightly larger than the inner diameter of the cable sheath outlet to guarantee a good seal. The sealing ring's cross-sectional shape can be circular, rectangular, or other special shapes; a common circular cross-section facilitates installation and provides uniform sealing pressure.

[0064] The clamping ring can be made of metal (such as stainless steel or aluminum alloy) or rigid plastic (such as polyamide or polycarbonate). The inner diameter of the clamping ring should be slightly larger than the outer diameter of the cable to ensure that the cable can pass through smoothly. The outer diameter should be compatible with the outer diameter of the cable sheath exit end for easy installation and fixation.

[0065] During installation, place the sealing ring on the cable and slowly move it inside the cable sheath outlet end, aligning the sealing ring with the end of the cable sheath outlet. During installation, take care to avoid twisting or deforming the sealing ring, ensuring it is evenly distributed circumferentially.

[0066] Place the clamping ring onto the cable and push it to the outside of the cable sheath exit end, ensuring it makes tight contact with the sealing ring. Bolt holes are usually pre-drilled in the clamping ring; use bolts and nuts to secure the clamping ring to the cable sheath exit end. When tightening the bolts, tighten them gradually in a diagonal sequence, ensuring the clamping ring applies pressure evenly to the sealing ring, causing it to elastically deform and fill the gap between the cable and the cable sheath exit end.

[0067] In this design, the sealing ring undergoes elastic deformation under the action of the compression ring, which can fit tightly between the cable and the cable sheath outlet end, forming a continuous and reliable sealing barrier. This effectively prevents external moisture (such as rainwater, groundwater, etc.) from entering the cable sheath, protecting the cable from water corrosion and ensuring stable and reliable insulation and electrical performance of the cable.

[0068] The sealing device in this solution has a relatively simple structure, few components, and requires no complex tools or techniques for installation. Simply slip the sealing ring and clamping ring onto the cable in sequence and secure them with bolts and nuts. This significantly shortens installation time, improves work efficiency, and reduces installation costs.

[0069] Based on any of the aforementioned solutions, in one possible implementation, the clamp is provided with a cable fixing clip for fixing the cable; the cable fixing clip is an adjustable structure that can be adjusted according to the diameter of the cable.

[0070] In this design, the clamp is made of high-strength metal (such as stainless steel or carbon steel) and is semi-circular or a two-part ring structure that can be joined together for easy installation on cable poles. A rubber pad can be installed on the inner side of the clamp to increase friction with the cable pole and prevent slippage. The clamp has pre-drilled holes or slots for installing cable clamps, facilitating their installation and securing.

[0071] Adjustable cable clamps mainly consist of two clamping arms, an adjusting screw, and a nut. The clamping arms are typically made of metal, with their inner sides designed in an arc shape to fit the cable surface, ensuring a tight fit. One end of the clamping arm is hinged, forming an openable structure; the other end has a threaded hole that mates with the adjusting screw.

[0072] The adjusting screw passes through the threaded holes on the two clamping arms. By rotating the nut, the distance between the two clamping arms can be changed, thus achieving clamping of cables of different diameters. A wing nut can be used for easy manual operation and adjustment without the need for tools.

[0073] In this solution, during installation, the clamp is wrapped around the cable pole, aligning both ends of the clamp, and then bolts or other fastening methods are used to fix the clamp to the cable pole, ensuring that the clamp is secure and will not loosen.

[0074] Install the cable clamp onto the clamp using the pre-drilled holes or slots. You can use bolts or welding to secure it. Ensure the cable clamp is properly positioned for easy cable fixation.

[0075] Place the cable between the two clamping arms and rotate the nut on the adjusting screw according to the cable diameter to gradually bring the two clamping arms closer to the cable until the clamping arms are tightly fitted with the cable and can provide sufficient clamping force to prevent the cable from slipping in the clamp.

[0076] In this solution, the cable clamp adjustment method is simple, requiring no complicated tools or techniques. Operators can quickly adjust and install it on-site according to the cable diameter. This greatly shortens installation time and improves work efficiency, making it particularly suitable for emergency repairs or large-scale cable laying projects.

[0077] By adjusting the screw and nut, the clamping force of the clamping arm on the cable can be precisely controlled, ensuring that the cable is firmly fixed in the clamp and will not shift or shake due to external forces (such as wind, vibration, etc.). This helps to ensure the safe operation of the cable and reduce failures and accidents caused by cable loosening.

[0078] Based on any of the aforementioned schemes, in one possible implementation scheme, the inner diameter of the cable sheath is 1 to 2 times the cable diameter.

[0079] For example, in this solution, for conventional overhead power cables of 10kV and below, if the cable diameter is 20mm, considering the influence of wind in the overhead environment and the thermal expansion and contraction of the cable itself, the inner diameter of the cable sheath can be selected as 30mm, which is 1.5 times the cable diameter.

[0080] For high-voltage underground power cables of 110kV and above, due to their high insulation requirements and large wire diameter, if the wire diameter is 80mm after measurement, a cable sheath with an inner diameter of 140mm (1.75 times the wire diameter) should be selected to ensure the safety and stability of the cable in the complex underground environment.

[0081] In this design, when the inner diameter of the cable sheath is 1 to 2 times the cable diameter, a reasonable protective space can be formed around the cable. A cable sheath with a suitable inner diameter can accommodate the thermal expansion and contraction of the cable, preventing sheath rupture or cable deformation due to thermal expansion, which would affect electrical performance and extend the cable's service life.

[0082] Based on any of the aforementioned schemes, in one possible implementation, the cable sheath includes an inner layer, a middle layer, and an outer layer; the inner layer is made of polytetrafluoroethylene, the middle layer is made of rubber, and the outer layer is made of polyethylene.

[0083] In this design, the inner layer of polytetrafluoroethylene has extremely high insulation resistance and dielectric strength, which can effectively prevent current leakage, provide reliable insulation protection for the cable, reduce the risk of electrical accidents, and ensure the safe and stable transmission of power and signal communication.

[0084] The middle rubber layer gives the cable sheath good flexibility, allowing it to adapt to bending, stretching, and other deformations during cable laying and operation. At the same time, the rubber layer has a certain buffering and shock-absorbing effect, absorbing external mechanical impacts, protecting the internal structure of the cable from damage, and extending the cable's service life.

[0085] The outer polyethylene layer has excellent weather resistance, effectively resisting the erosion of natural environmental factors such as ultraviolet rays and wind and sand, preventing cable sheath aging and cracking. In addition, polyethylene also has good chemical stability and is resistant to most chemicals, which can prevent the cable sheath from being corroded in harsh chemical environments and improve the cable's suitability for different environments.

[0086] The low coefficient of friction of the PTFE inner layer makes the cable insertion into the sheath smoother, reducing construction difficulty and time costs.

[0087] Based on any of the aforementioned solutions, in one possible implementation, a support structure is provided inside the cable sheath; the support structure is a spiral metal wire or a spaced-apart ring support, and the support structure is used to maintain the shape of the cable sheath.

[0088] In this design, the spiral wire support structure can be made of stainless steel wire or galvanized iron wire. The ring-shaped support can be made of metal (such as aluminum alloy) or high-strength plastic (such as polycarbonate).

[0089] In this design, both the spiral metal wires and the spaced-out ring-shaped supports can form an effective support system inside the cable sheath. When the cable sheath is subjected to external forces such as compression, tension, or bending, the support structure can disperse and resist these forces, prevent the cable sheath from deforming, ensure that the cable sheath always maintains its original shape, and provide a stable protective space for the cable.

[0090] Based on any of the aforementioned schemes, a protective opening is provided at the outlet end of the cable sheath. The protective opening is made of flexible material and is used to prevent the cable from being scratched or damaged when it is passed through.

[0091] In this design, the protective opening can be manufactured using injection molding. A corresponding mold is made based on the size and shape of the cable sheath outlet. The selected flexible material is placed into the mold and formed using molding equipment under specific temperature and pressure conditions.

[0092] For example, in this solution, during installation, a layer of a special rubber or flexible adhesive is evenly applied to the outer side of the protective opening and the corresponding position at the cable sheath outlet. After applying the adhesive, the protective opening is quickly aligned with the cable sheath outlet and installed, with a certain pressure applied and maintained for a period of time to allow the adhesive to fully cure, ensuring a tight connection between the protective opening and the cable sheath.

[0093] In this design, the protective opening is made of a flexible material. Its soft texture allows it to fit tightly against the cable surface when the cable is pulled out, preventing direct contact between the cable and the hard edge of the cable sheath exit. This prevents the cable from being scratched or damaged during the pulling process, protects the cable's insulation and conductor, ensures stable electrical performance of the cable, and extends the cable's service life.

[0094] Based on any of the aforementioned schemes, in one possible implementation scheme, a grounding wire is also included, with one end of the grounding wire connected to the clamp and the other end connected to the ground.

[0095] For example, in this solution, the other end of the grounding conductor is connected to the grounding electrode. For galvanized angle steel grounding electrodes, holes can be drilled in the top of the angle steel, and bolts can be used to connect the terminals of the grounding conductor to the angle steel. If a copper rod grounding electrode is used, exothermic welding can be used to securely connect the grounding conductor to the copper rod.

[0096] In this solution, when a leakage fault occurs in the cable pole mounting device or the cable itself, the grounding conductor can quickly conduct the fault current to the ground. This prevents step voltage from forming around the device, preventing electric shock to personnel approaching the device and providing safety for on-site workers and passersby.

[0097] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A cable pole climbing device, characterized in that, include: Cable poles and clamps; The cable pole includes a first pole segment and a second pole segment, wherein the first pole segment is located below a predetermined height from the ground, and the second pole segment is located above the first pole segment; The first pole segment is provided with a cable channel, which is used to allow the ground cable to pass through the interior of the first pole segment and exit the first pole segment above the preset height position; The clamp is installed on the second pole section and is used to secure the cable that passes through the first pole section.

2. The cable pole climbing device as described in claim 1, characterized in that, It also includes a cable sheath, which is disposed within the cable channel.

3. The cable pole climbing device as described in claim 2, characterized in that, The inner wall of the cable sheath is provided with several longitudinal ribs; The reinforcing bars are made of elastic rubber, and their height and width are evenly distributed along the axial direction of the cable sheath.

4. The cable pole climbing device as described in claim 3, characterized in that, The outlet end of the cable sheath is provided with a sealing device, which is used to waterproof and seal the outlet end of the cable sheath.

5. The cable pole climbing device as described in claim 4, characterized in that, The sealing device includes a sealing ring and a clamping ring, wherein the clamping ring presses against the sealing ring.

6. The cable climbing device as described in claim 1, characterized in that, The clamp is equipped with a cable fixing clip for fixing the cable; The cable clamp is an adjustable structure that can be adjusted according to the diameter of the cable.

7. The cable pole climbing device as described in claim 2, characterized in that, The inner diameter of the cable sheath is 1 to 2 times the diameter of the cable.

8. The cable climbing device as described in claim 2, characterized in that, The cable sheath includes an inner layer, a middle layer, and an outer layer; The inner layer is made of polytetrafluoroethylene, the middle layer is made of rubber, and the outer layer is made of polyethylene.

9. The cable pole climbing device as described in claim 2, characterized in that, The cable sheath is provided with a support structure inside; The support structure is a spiral metal wire or a spaced-out ring support, which is used to maintain the shape of the cable sheath.

10. The cable pole climbing device as described in claim 2, characterized in that, The cable sheath has a protective opening at its outlet end, which is made of a flexible material and is used to prevent the cable from being scratched or damaged when it is passed through.

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