Insulation cross arm with force release structure

Abstract

The utility model relates to an insulating cross arm with a force release structure. A rod body is cylindrical; the multiple rotary drums are arranged in the axis direction of the rod body and rotationally connected to the outer side of the rod body. A plurality of blades are uniformly and fixedly distributed on the outer circumferential surface of the rotary drum in the axial direction of the rotary drum; the blades arranged on the rotary drum in the axial direction of the rod body are alternately arranged in a high-low manner; the force release function is effectively achieved, resonance is effectively avoided through structure and material selection, and the overall structural stability and safety are improved; in addition, the insulating cross arm not only provides necessary insulating and structural supporting functions, but also effectively realizes an environment-friendly and safe bird repelling function, and reduces interference and potential damage of birds to electric power facilities.

Description

Technical Field

[0001] The utility model relates to an insulating cross arm with a force release structure, belonging to the technical field of circuit erection. Background Art

[0002] In the power system, the insulated crossarm is a key component used to support and fix the wires, while preventing the current from being conducted to the ground through the pole body, ensuring the safe operation of the system. Traditional insulated crossarms usually include a pole body, and fixing hardware and wire hanging hardware installed at both ends of the pole body. The pole body generally consists of a central core rod and an insulating layer covering the outer surface of the core rod to provide the necessary mechanical strength and electrical insulation performance.

[0003] However, existing insulating crossarms have some limitations in design. They usually do not have an effective force-dissipating structure, which means that the stability of the crossarms may be affected when encountering natural conditions such as strong winds; even with smaller winds, the crossarms still need to consume this energy, which can easily cause the crossarms to swing slightly. Over time, the crossarms are prone to fatigue, resulting in cracks, reducing their service life, or even breaking. Utility Model Content

[0004] The purpose of the utility model is to provide an insulating cross arm with a force release structure to solve the problems raised in the above background technology.

[0005] The technical solution of the utility model is as follows:

[0006] An insulating cross arm with a force relief structure, comprising:

[0007] A rod body, wherein the rod body is cylindrical in shape;

[0008] A rotating drum, wherein a plurality of the rotating drums are arranged along the axis direction of the rod body and are rotatably connected to the outside of the rod body; a plurality of blades are evenly distributed and fixed on the outer circumference of the rotating drum around the axial direction;

[0009] The blades on the rotating drum are arranged along the axis direction of the rod body in an alternating manner of high and low.

[0010] Preferably, fixing hardware and wire hanging hardware are respectively provided at both ends of the rod body, and a plurality of silicone umbrella sleeves are provided on the outer circumferential surface of the rod body at parallel intervals along its axial direction, and each rotating cylinder is located between two corresponding adjacent silicone umbrella sleeves.

[0011] Preferably, the rod body includes a core rod and an insulating layer sleeved on the outer surface of the core rod; the fixing hardware and the wire hanging hardware are configured as sleeve structures, and the end of the core rod is inserted into the corresponding sleeve structure and fixed.

[0012] Preferably, a groove for carrying the cable is transversely opened on the upper part of the wire hanging fitting, the upper end of the groove is open and the cross-section is elliptical; a pressure plate is sealed at the upper end of the elliptical groove, and the pressure plate can clamp the cable adjustable by bolts.

[0013] Preferably, a sinking platform is provided on the fixing fixture near the outer end, a fixing hole perpendicular to the rod body is opened on the sinking platform, and ribs are formed on both sides of the sinking platform, and the ribs are inclined and increased from the outer end to the end close to the rod body.

[0014] Preferably, the inner ring diameter of the rotating drum is larger than the outer diameter of the rod body to form a rotating space, and a plurality of rollers are evenly arranged in the rotating space.

[0015] Preferably, bristles are fixed on the inner ring of the rotating drum; the other ends of the bristles contact the outer circumferential surface of the rod body.

[0016] Preferably, both ends of the roller are supported and freely rotated by a fork rod fixed on the inner ring of the drum; the roller rolls against the outer circumferential surface of the rod body; and the part of the fork rod perpendicular to the drum is an elastic telescopic sleeve structure.

[0017] Preferably, insulating sheets extending toward each other are respectively provided on adjacent side surfaces of blades on two adjacent drums; the insulating sheets of adjacent blades partially interfere with each other, so that when the two adjacent drums rotate relative to each other, the insulating sheets collide with each other and make a sound to drive away birds.

[0018] Preferably, the insulating sheet is connected to the blade via an elastic rubber at the root.

[0019] The utility model has the following beneficial effects:

[0020] When the wind blows over the crossarm, the blades on the drum mounted outside the pole can rotate. This rotation can divert the direct effect of the wind and convert it into the rotational power of the drum, thereby reducing the impact and pressure on the crossarm itself. The rotation of the blades creates airflow changes, which helps to disperse wind pressure and reduce the direct impact on the crossarm.

[0021] The elastic telescopic sleeve structure of the fork rod allows the drum to be properly adjusted in position when subjected to strong winds. This retractability further increases the structure's ability to adapt to external forces and reduces pressure concentration caused by external factors such as strong winds.

[0022] Adjacent blades have different heights, which means they have different dynamic responses when rotating. This design reduces the possibility of all blades vibrating at the same frequency, thereby reducing the risk of resonance. Blades of different heights also rotate at different frequencies under the action of wind, further avoiding structural damage caused by frequency resonance.

[0023] The insulating sheet is connected to the blade by elastic rubber. This elastic connection can absorb part of the vibration energy, play a damping role and reduce the possibility of resonance. The design of the roller and fork rod also provides additional elasticity and damping characteristics to the entire structure, helping to absorb vibration energy and reduce the risk of resonance.

[0024] When the wind blows the blades, due to the rotation or vibration of the blades, and the different heights and windward forces of adjacent blades, the rotation speed will be different, and the adjacent insulating sheets will contact and collide with each other. The sound produced by this collision can simulate the sound of natural enemies or create uncomfortable noise to a certain extent, effectively driving away birds.

[0025] The force release function is effectively realized, and the occurrence of resonance is effectively avoided through the selection of structure and materials, thereby improving the overall structural stability and safety. In addition, the insulating crossarm not only provides the necessary insulation and structural support functions, but also effectively realizes the environmentally friendly and safe bird-repelling function, reducing the interference and potential damage of birds to power facilities. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the utility model;

[0027] Figure 2 yes Figure 1 Enlarged view of the middle circle;

[0028] Figure 3 yes Figure 1 Schematic cross-sectional view of AA.

[0029] The reference numerals in the figure are as follows:

[0030] 1. Fixing hardware; 11. Sinking platform; 12. Fixing hole; 13. Rib; 2. Wire hanging hardware; 21. Groove; 22. Pressure plate; 23. Bolt; 3. Rod body; 31. Mandrel; 32. Insulating layer; 4. Silicone umbrella cover; 5. Sleeve structure; 61. Rotating drum; 62. Blades; 63. Roller; 64. Fork rod; 66. Bristles; 67. Insulating sheet; 68. Spring. DETAILED DESCRIPTION

[0031] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] Example: Figure 1-3 As shown:

[0033] It includes a rod body 3, a fixing hardware 1 arranged at one end of the rod body 3, and a wire hanging hardware 2 arranged at the other end of the rod body 3; the rod body 3 includes a core rod 31 and an insulating layer 32 sleeved on the outer surface of the core rod 31; a plurality of silicone umbrella sleeves 4 are arranged on the outer circumference of the rod body 3 along its axial direction and are parallel to each other at intervals; a rotating cylinder 61 is rotatably sleeved on the outside of the rod body 3 between two adjacent silicone umbrella sleeves 4; a plurality of blades 62 are fixed on the outer circumference of the rotating cylinder 61 along the axial ring array around the rotating cylinder 61; the heights of adjacent blades 62 are different, and the blades 62 on the rotating cylinder 61 arranged along the axial direction of the rod body 3 are alternately arranged one high and one low.

[0034] The inner diameter of the rotating cylinder 61 is larger than the outer diameter of the rod body 3, so that there is a gap between it and the rod body 3 to form a rotation space, and a plurality of rollers 63 are evenly arranged in the rotation space; both ends of the rollers 63 are supported by a fork rod 64 fixed on the inner ring of the rotating cylinder 61 and can rotate freely; the rollers 63 roll against the outer circumferential surface of the rod body 3; the part of the fork rod 64 perpendicular to the rotating cylinder 61 is an elastic telescopic sleeve structure, and a spring 68 is arranged on the telescopic rod of the elastic telescopic sleeve structure so that the elastic telescopic sleeve structure can be restored and telescoped.

[0035] Brushes 66 are also fixed on the inner circle of the rotating drum 61 , and the other ends of the brushes 66 contact the outer circumferential surface of the rod body 3 .

[0036] Insulating sheets 67 extend toward each other on adjacent sides of blades 62 on adjacent rotating drums 61; the insulating sheets 67 of adjacent blades 62 partially interfere with each other, so that when adjacent blades 62 rotate relative to each other, the insulating sheets 67 collide with each other and make a sound to drive away birds. The insulating sheets 67 are connected to the blades 62 through elastic rubber at the root.

[0037] The rotating drum 61, the blades 62, the rollers 63, the fork rods 64 and the bristles 66 are all made of insulating materials, and the insulating materials are polyurethane, epoxy resin or phenolic resin.

[0038] The ends of the fixing fitting 1 and the hanging wire fitting 2 are arranged as sleeve structures 5; the two ends of the mandrel 31 are respectively inserted into the sleeve structures 5 of the fixing fitting 1 / the hanging wire fitting 2 and fixed.

[0039] A groove 21 for carrying the cable is transversely opened on the upper part of the wire hanging fitting 2. The upper end of the groove 21 is open and the cross-section is elliptical. The pressure plate 22 is blocked at the upper end of the elliptical groove 21, and the pressure plate 22 can be adjusted to clamp the cable through a bolt 23.

[0040] A sink 11 is provided near the outer end of the fixing hardware 1; a fixing hole 12 is opened on the sink 11; the fixing hole 12 is perpendicular to the rod body 3. Ribs 13 are formed on both sides of the sink 11, and the ribs 13 are inclined and increased from the outer end to the end close to the rod body 3 and fixedly connected with the sleeve structure 5.

[0041] Prefabricated rod body:

[0042] The insulating layer 32 is formed directly on the outer surface of the core rod 31 by injection molding technology. In this process, the insulating layer material (such as epoxy resin, polyurethane or phenolic resin) is injected into the mold under high temperature and high pressure, and a solid insulating layer 32 is formed after curing.

[0043] In the same injection molding process, the silicone umbrella cover 4 is also formed on the outer circumferential surface of the rod body 3 and fixed according to a predetermined spacing and arrangement.

[0044] Assembling drum 61:

[0045] The rotating drum 61 divided into two halves is respectively sleeved on the designated positions of the rod body 3, and the rollers 63, bristles 66 and insulating sheets 67 are pre-installed on the rotating drum 61 to ensure that the rotating drum 61 is located in the space between the silicone umbrella sleeves 4; the blades 62 and the rotating drum 61 are integrally injection molded.

[0046] The two halves of the drum are docked, ensuring that the preset slot structures on the drum 61 are properly aligned to achieve a secure docking.

[0047] Fixed drum 61:

[0048] The docked rotating drum 61 is fixed with a snap-fit ​​structure or a hoop to ensure that the rotating drum 61 is firmly fixed on the rod body 3 and can rotate freely.

[0049] Connect the fixing fitting 1 and the hanging fitting 2:

[0050] The fixing hardware 1 and the wire hanging hardware 2 are respectively installed at the two ends of the rod body 3.

[0051] Install the cable:

[0052] The cable is placed in the oval groove 21 of the wire hanging fitting 2 and fixed by the pressing plate 22 .

[0053] Final Check:

[0054] Perform a thorough inspection of the entire structure to ensure that all parts are properly installed and nothing is damaged or loose.

[0055] 1. Release force

[0056] When the wind blows through the cross arm, the blades 62 mounted on the drum 61 outside the rod body 3 can rotate. This rotation can transfer the direct effect of the wind force and convert the wind force into the rotational power of the drum 61, thereby reducing the impact and pressure on the cross arm itself.

[0057] The rotation of the blades 62 creates airflow changes which help disperse wind pressure and reduce direct impact on the crossarms.

[0058] The elastic telescopic sleeve structure of the fork rod 64 allows the rotating drum 61 to be properly adjusted in position when subjected to strong wind force, and the roller 63 is kept in contact with the outer wall of the rod body 3 through the elastic telescopic sleeve structure. This elasticity further increases the structure's adaptability to external forces and reduces pressure concentration caused by external factors such as strong winds.

[0059] 2. Avoid resonance

[0060] Adjacent blades 62 have different heights, which means that their dynamic response when rotating is different. This design reduces the possibility of all blades 62 vibrating at the same frequency, thereby reducing the risk of resonance.

[0061] The blades 62 at different heights have different rotation frequencies under the action of wind, which further avoids structural damage caused by frequency resonance.

[0062] The insulating sheet 67 is connected to the blade 62 via elastic rubber. This elastic connection can absorb a portion of the vibration energy, play a damping role, and reduce the possibility of resonance.

[0063] The design of the rollers 63 and fork rods 64 also provides additional elasticity and damping properties to the entire structure, helping to absorb vibration energy and reduce the risk of resonance.

[0064] The insulating materials used (such as polyurethane, epoxy resin or phenolic resin) have certain elastic and damping properties, which help to reduce the risk of stress concentration and resonance caused by vibration.

[0065] In summary, the insulating cross arm of the utility model effectively realizes the force release function through its unique design, and effectively avoids the occurrence of resonance through structure and material selection, thereby improving the overall structural stability and safety.

[0066] 3. Bird repellent

[0067] When the wind blows the blades 62 , due to the rotation or vibration of the blades 62 and the different heights and windward forces of two adjacent blades 62 , the rotation speeds will be different, and the adjacent insulating sheets 67 will contact and collide with each other.

[0068] The sound produced by this collision can simulate the sound of natural enemies or create uncomfortable noise to a certain extent, effectively driving away birds.

[0069] Variable sound frequency: Due to the different heights of the blades 62 and the change in wind speed, the frequency and intensity of the sound produced will also vary, increasing the uncertainty and effectiveness of the bird repelling effect.

[0070] The insulating sheet 67 is connected to the blade 62 via an elastic rubber at the root. This elastic connection not only increases the dynamic range during impact, but also makes the sound generation more diverse.

[0071] Durable design: Due to the durable design of the insulating sheet 67 and the elastic connection, this bird repellent mechanism can be effective for a long time, reducing the need for maintenance and replacement.

[0072] This method of bird repelling does not rely on chemicals or electric shocks, making it safe for birds and the environment, while also avoiding the risk of possible harm to people or equipment.

[0073] In summary, the insulating crossarm of the utility model effectively realizes the force release function through its unique design, and effectively avoids the occurrence of resonance through structure and material selection, thereby improving the overall structural stability and safety; in addition, the insulating crossarm not only provides the necessary insulation and structural support functions, but also effectively realizes the environmentally friendly and safe bird-repelling function, reducing the interference and potential damage of birds to power facilities.

[0074] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An insulating cross arm with a force relief structure, characterized in that: include: A rod body (3), wherein the rod body (3) is cylindrical in shape; A rotating drum (61), wherein a plurality of the rotating drums (61) are arranged along the axis direction of the rod body (3) and are rotatably connected to the outside of the rod body (3); a plurality of blades (62) are evenly distributed and fixed on the outer circumferential surface of the rotating drum (61) around the axial direction thereof; The blades (62) on the rotating drum (61) are arranged along the axis direction of the rod body (3) in an alternating arrangement of one high and one low.

2. The insulating cross arm with a force relief structure as claimed in claim 1, characterized in that: The two ends of the rod body (3) are respectively provided with fixing hardware (1) and wire hanging hardware (2); the outer circumferential surface of the rod body (3) is provided with a plurality of silicone umbrella sleeves (4) at intervals and parallel to each other along its axial direction; each rotating cylinder (61) is located between two corresponding adjacent silicone umbrella sleeves (4).

3. The insulating cross arm with a force relief structure as claimed in claim 2, characterized in that: The rod body (3) comprises a core rod (31) and an insulating layer (32) sleeved on the outer surface of the core rod (31); the fixing hardware (1) and the wire hanging hardware (2) are configured as a sleeve structure (5), and the end of the core rod (31) is inserted into the corresponding sleeve structure (5) and fixed.

4. The insulating cross arm with a force relief structure as claimed in claim 3, characterized in that: A groove (21) for carrying a cable is transversely opened on the upper part of the wire hanging fitting (2), the upper end of the groove (21) is open and the cross section is elliptical; a pressing plate (22) is sealed at the upper open end of the elliptical groove (21), and the pressing plate (22) can be adjusted to clamp the cable through a bolt (23).

5. The insulating cross arm with a force relief structure as claimed in claim 3, characterized in that: A sink (11) is provided near the outer end of the fixing hardware (1), and a fixing hole (12) perpendicular to the rod body (3) is provided on the sink (11). Ribs (13) are formed on both sides of the sink (11), and the ribs (13) are inclined and increased in height from the outer end to the end close to the rod body (3).

6. The insulating cross arm with a force relief structure according to claim 1, characterized in that: The inner diameter of the rotating cylinder (61) is larger than the outer diameter of the rod body (3) to form a rotating space, and a plurality of rollers (63) are evenly arranged in the rotating space.

7. The insulating cross arm with a force relief structure as claimed in claim 6, characterized in that: Brush bristles (66) are also fixed on the inner ring of the rotating cylinder (61); the other end of the brush bristles (66) contacts the outer circumferential surface of the rod body (3).

8. The insulating cross arm with a force relief structure as claimed in claim 6, characterized in that: The two ends of the roller (63) are supported and freely rotated by a fork rod (64) fixed on the inner ring of the rotating cylinder (61); the roller (63) rolls on the outer circumferential surface of the rod body (3); and the part of the fork rod (64) perpendicular to the rotating cylinder (61) is an elastic telescopic sleeve structure.

9. The insulating cross arm with a force relief structure according to claim 1, characterized in that: Insulating sheets (67) extending toward each other are respectively provided on adjacent side surfaces of blades (62) on two adjacent rotating drums (61); the insulating sheets (67) of adjacent blades (62) partially interfere with each other, so that when the two adjacent rotating drums (61) rotate relative to each other, the insulating sheets (67) collide with each other and make a sound to drive away birds.

10. The insulating cross arm with a force relief structure according to claim 9, characterized in that: The insulating sheet (67) is connected to the blade (62) via an elastic rubber at the root.

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