Adjustable electrical power assembly cross arm

Abstract

The utility model relates to a kind of adjustable electric power combination cross arm, including two fixed components, two support components, four groups of cross arm components, several insulators and two groups of stud bolts and nut combination, two the fixed components are symmetrically set in the opposite sides of electric pole, and two fixed components are fixed between through two groups of stud bolts and nut combination and connect in electric pole outside. Cross arm component is composed of several sections of extension module and a section of support module, each module is connected by thread. In actual installation process, the number of extension module can be flexibly adjusted according to the spacing of electric pole and line design requirement, so as to realize the length adjustment of cross arm, and the adjustable design makes the cross arm can adapt to different terrain and engineering needs, avoids various problems caused by inappropriate cross arm length, improves the efficiency and flexibility of electric power line erection.

Description

Technical Field

[0001] This utility model relates to the field of power crossarm technology, specifically an adjustable power combination crossarm. Background Technology

[0002] Crossarms are one of the most basic electrical fittings on overhead power lines. Their main function is to support power cables and maintain a safe distance as required. Traditional power crossarms typically use a fixed-length structure and are generally composed of angle steel and insulators of fixed length. During installation, the appropriate length of the crossarm needs to be pre-customized based on the spacing between poles and the line design requirements. For low-voltage lines (below 400V), the crossarm is shorter (usually 0.8-1.5 meters), with lower conductor spacing requirements; for medium-voltage lines (10-35kV), the crossarm length is 1.5-3 meters, requiring sufficient phase-to-phase insulation distance (e.g., ≥0.4 meters for 10kV); while high-voltage / ultra-high-voltage lines (above 110kV) require longer crossarms (usually 3-8 meters).

[0003] In actual power line construction projects, it is common to encounter situations where the customized crossarm length does not match the actual needs. If the crossarm length is too short, it cannot meet the installation requirements of wires and insulators, which may lead to insufficient wire spacing and increase the risk of short circuits. If the crossarm length is too long, it will not only increase material costs but also cause many inconveniences during installation, such as transportation difficulties and limited installation space. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] This invention provides an adjustable power combination crossarm, which solves the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: an adjustable power combination crossarm, comprising two fixing components, two support components, four sets of crossarm assemblies, several insulators, and two sets of double-ended studs and nuts. The two fixing components are symmetrically arranged on opposite sides of the utility pole, and are connected and fixed to the outside of the utility pole by the two sets of double-ended studs and nuts. The two support components are respectively sleeved on the outside of the two fixing components and connected and fixed to them by fasteners. The two support components cover the nuts of the two sets of double-ended studs and nuts inside them. A set of crossarm assemblies is detachably installed at both ends of each support component, and an insulator is installed at the end of the crossarm assembly away from the support component.

[0008] Preferably, both ends of the support component have threaded holes, and both ends of the support component are connected to a set of crossarm components by threads. The crossarm component includes several extension modules and a support module. One end of the extension module is provided with an external thread, and the other end of the extension module is provided with an internal thread. One end of the support module is provided with an external thread, and the other end of the support module is provided with a mounting hole that mates with the insulator. The support component is connected to adjacent extension modules, between two adjacent extension modules, and between the support module and adjacent extension modules by threads.

[0009] In a further preferred embodiment, both ends of the fixing component are formed with connecting sections, and the connecting sections are provided with connecting holes that penetrate the connecting sections. The connecting holes that are coaxially distributed in the two fixing components are passed through by a set of double-ended studs and nuts. The fixing component has a slot on the side facing the utility pole, and an anti-slip pad is embedded in the slot. The fixing component has a fitting fixing hole, and a bolt is inserted in the fitting fixing hole to connect and fix the fixing component and the support component located on its outside.

[0010] (III) Beneficial Effects

[0011] Compared with the prior art, this utility model provides an adjustable power combination crossarm, which has the following beneficial effects:

[0012] 1. In this utility model, the crossarm assembly consists of several extension modules and a support module, with each module connected by a thread. During actual installation, the number of extension modules can be flexibly adjusted according to the spacing of the utility poles and the line design requirements, thereby adjusting the length of the crossarm. This adjustable design allows the crossarm to adapt to different terrains and engineering needs, avoiding various problems caused by unsuitable crossarm length and improving the efficiency and flexibility of power line erection.

[0013] In addition, the support assembly houses the nuts in the double-ended stud and nut assembly, effectively preventing corrosion from rainwater, moisture, and dust, thus avoiding rust. This not only ensures the strength and reliability of the fixing components and extends the service life of the crossarm, but also reduces maintenance and repair work caused by nut corrosion. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of the adjustable power combination crossarm according to the implementation plan;

[0015] Figure 2 for Figure 1 A schematic diagram of the structure of the adjustable power combination crossarm after installation on the utility pole;

[0016] Figure 3This is an exploded schematic diagram of a portion of the adjustable power combination crossarm according to the implementation plan;

[0017] Figure 4 This is a structural schematic diagram of the fixed component according to the implementation plan.

[0018] In the diagram: 10. Fixing component; 11. Slot; 12. Connecting section; 13. Connecting hole; 14. Mounting hole; 20. Anti-slip pad; 30. Support component; 40. Crossarm component; 41. Extension module; 42. Support module; 50. Insulator; 60. Double-ended stud and nut assembly; 70. Utility pole. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1 and Figure 2 An adjustable power crossarm includes two fixing components 10, two support components 30, four sets of crossarm assemblies 40, several insulators 50, and two sets of double-ended stud and nut assemblies 60. The two fixing components 10 are symmetrically arranged on opposite sides of a power pole 70, and are connected and fixed to the outside of the power pole 70 by the two sets of double-ended stud and nut assemblies 60. The two fixing components 10 are used for installation and fixation between the entire device and the power pole 70. The two support components 30 are respectively sleeved on the outside of the two fixing components 10 and connected and fixed to them by fasteners. The two support components 30 are used to cooperate with the installation of the crossarm assemblies 40, and a set of crossarm assemblies 40 can be detachably installed at both ends of each support component 30; furthermore, the two support components 30 can also cover the nuts in the double-ended stud and nut assemblies 60 that lock the two fixing components inside, to reduce the corrosive effect of rainwater. An insulator 50 is installed at the end of the crossarm assembly 40 away from the support assembly 30. The insulator 50 is used to erect power cables.

[0021] See Figure 4The fixing component 10 is designed with an arc shape on the side facing the utility pole 70 to accommodate it, allowing both fixing components 10 to be held and locked onto the utility pole 70. To improve the stability of the installation, a slot 11 is formed on the side of the fixing component 10 facing the utility pole 70. An anti-slip pad 20 is embedded in the slot 11, allowing the anti-slip pad 20 to contact the utility pole 70 when the two fixing components 10 are locked onto it, thereby increasing the frictional resistance between the device and the utility pole 70 and reducing the slippage of the device. Both ends of the fixing component 10 have connecting sections 12, with connecting holes 13 penetrating the connecting sections 12. The connecting holes 13, which are coaxially distributed in the two fixing components 10, are passed through by a set of double-ended studs and nuts 60, and nuts are fitted at both ends of the double-ended studs to tighten and lock the fixing component 10. The inner side of the support component 30 has a cavity that matches the shape and size of the fixing component 10, so that the support component 30 can be sleeved on its outer side and cover the nut in the double-ended stud and nut assembly 60. The fixing component 10 has a fitting fixing hole 14, through which fasteners such as bolts are inserted to connect and fix the fixing component 10 and the support component 30 located on its outer side.

[0022] See Figure 3 The support assembly 30 has threaded holes at both ends, and each end of the support assembly 30 is connected to a crossarm assembly 40 via threads. The crossarm assembly 40 includes several extension modules 41 and a support module 42. One end of the extension module 41 has an external thread, and the other end has an internal thread. One end of the support module 42 has an external thread, and the other end has a mounting hole that mates with the insulator 50, allowing the lower end of the insulator 50 to pass through the mounting hole and be fixed to the support module 42. During transportation, the support assembly 30 can be transported separately from the extension modules 41 and the support module 42, thus avoiding the inconvenience caused by an excessively long support assembly 30. During installation and use, the support assembly 30 can be connected to adjacent extension modules 41, between two adjacent extension modules 41, and between the support module 42 and adjacent extension modules 41 via threads, thereby allowing the support assembly 30 to reach the required length.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances. Moreover, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable power combination crossarm, comprising a plurality of insulators (50), characterized in that, It also includes two fixing components (10), two support components (30), four sets of crossarm components (40), and two sets of double-headed stud and nut assemblies (60). The two fixing components (10) are symmetrically arranged on opposite sides of the pole (70), and the two fixing components (10) are connected and fixed to the outside of the pole (70) by the two sets of double-headed stud and nut assemblies (60). The two support components (30) are respectively sleeved on the outside of the two fixing components (10) and connected and fixed to them by fasteners. The two support components (30) cover the nuts in the two sets of double-headed stud and nut assemblies (60) inside. Each support component (30) has a set of crossarm components (40) detachably installed at both ends. An insulator (50) is installed at the end of the crossarm component (40) away from the support component (30).

2. The adjustable power combination crossarm according to claim 1, characterized in that: Both ends of the support component (30) are formed with threaded holes, and both ends of the support component (30) are connected to a set of crossbeam components (40) by threads.

3. An adjustable power combination crossarm according to claim 2, characterized in that: The crossarm assembly (40) includes several extension modules (41) and a support module (42). One end of the extension module (41) is provided with an external thread, and the other end of the extension module (41) is provided with an internal thread. One end of the support module (42) is provided with an external thread, and the other end of the support module (42) is provided with a mounting hole that mates with the insulator (50). The support assembly (30) and the adjacent extension module (41), the two adjacent extension modules (41) and the support module (42) and the adjacent extension module (41) are all connected by threads.

4. An adjustable power combination crossarm according to any one of claims 1-3, characterized in that: Both ends of the fixing component (10) are formed with connecting sections (12), and the connecting sections (12) are provided with connecting holes (13) that pass through the connecting sections (12). The connecting holes (13) that are coaxially distributed in the two fixing components (10) are passed through by the double studs in a set of double stud and nut assembly (60).

5. An adjustable power combination crossarm according to claim 4, characterized in that: The fixing component (10) has a slot (11) on the side facing the utility pole (70), and the slot (11) is fitted with an anti-slip pad (20).

6. An adjustable power combination crossarm according to claim 5, characterized in that: The fixing component (10) has a mounting hole (14) formed therein, and a bolt is inserted in the mounting hole (14) to connect and fix the fixing component (10) and the support component (30) located on its outside.

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