CN221096026U - Linear type composite insulating cross arm of distribution line - Google Patents

Abstract

The utility model discloses a linear composite insulating cross arm of a distribution line, which comprises a fixed fitting, wherein insulating cross arms are detachably and symmetrically arranged on two opposite sides of the fixed fitting, and quick locking wire clamps and crimping pipes are respectively arranged at two ends of the insulating cross arm: one end of the crimping pipe extends to the outside of the insulating cross arm along the length direction of the insulating cross arm and is provided with a pin hole; the fixing hardware fitting comprises a fixing box, fixing holes for the crimping pipe to penetrate into the fixing box are symmetrically formed in the opposite sides of the fixing box, and bolts matched with the pin holes are inserted into the fixing box; the clamping and fixing are realized through the matching of the quick locking bolt and the nut, and the nut can be matched with an external electric tool to realize quick installation; the damping rubber pads with different thicknesses can be replaced to realize the pairing use of the wire diameters in a larger range. The positioning grooves formed in the boss and the wire grooves of the damping rubber pad are matched and installed, so that the problem of sliding of the damping rubber pad caused by unbalanced tension of the wires can be effectively avoided.

Description

Linear type composite insulating cross arm of distribution line

Technical Field

The utility model relates to the technical field of insulating cross arms, in particular to a linear composite insulating cross arm for a distribution line.

Background

The insulating crossarm is an important component on the distribution line for supporting and fixing the power conductors, while having an insulating function, preventing direct contact between the power lines and the supporting structure. Different shapes and configurations are possible according to specific needs and design requirements. The insulating cross arm comprises insulating cross arms of different types such as straight lines, angles, T shapes, Y shapes and the like so as to adapt to different wiring schemes and environmental conditions. The selection and installation of the insulating cross arm plays a vital role in the stable operation and the safe transmission of the power line.

At present, in being applicable to 10kV distribution lines, the compound cross arm of straight line type mainly comprises composite insulator, tip gold utensil and cross arm staple bolt etc. when having improved the line lightning protection level, when having reduced line thunderbolt broken string, flashover incidence, current compound cross arm still has following problem: firstly, the fixing mode of the wire still adopts the traditional binding wire mode, and the damage condition of the insulating layer of the wire is easy to occur at the fixing part of the binding wire under the environments of coastal salt pollution, corrosion and wind gust; secondly, the existing insulating cross arms are mostly designed by adopting the same umbrella skirt, and the optimal design of the anti-pollution flashover structure in the sea salt environment is not considered.

For example, chinese patent publication No. CN213341579U, published on year 2021 and month 06 and 01, discloses a quick locking device for fixing overhead lines, and compared with the traditional fixing mode of binding wires, the quick locking device greatly reduces the construction workload of distribution networks;

However, the quick locking device is fixed by adopting the pull ring in a crimping way, and is easy to loosen to cause detachment in a clamping and fixing way through the press ring in a long-term wind vibration environment in coastal areas. Because the restriction of pull ring self structure can not use current electric tool to install fast, can only carry out manual installation by the manual work, and efficiency is lower.

For example, in 24 days of 2021, 24 days of 09, chinese patent publication number CN214273134U discloses a complete set composite insulating cross arm based on standard components, and the insulating cross arm used in a single loop and a double loop is standardized and generalized by symmetrically installing cross arm components on the left and right sides of a fixed hardware;

the body types of the fixed hardware fittings and the cross arm parts are fixed in one-to-one correspondence, so that the fixed hardware fittings and the cross arm parts of different types are inconvenient to pair.

Disclosure of utility model

The utility model aims to provide a linear composite insulating cross arm of a distribution line, which aims to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

The utility model provides a linear type composite insulation cross arm of distribution lines, includes the fixed fitting, the fixed fitting is fixed in on the pole, the fixed fitting opposite both sides can dismantle the symmetry and install the insulating cross arm, insulating cross arm both ends are provided with quick locking fastener and crimping pipe respectively:

The quick locking wire clamp comprises a wire clamp body and a wire clamp cover plate which are hinged and matched through a wire clamp hinge pin, a wire slot for an insulated wire to pass through is arranged between the wire clamp body and the wire clamp cover plate, a quick locking bolt is hinged at the rear end of the wire clamp cover plate, and the quick locking bolt passes through a locking slot formed at the rear end of the wire clamp body to be matched with a nut so as to realize clamping and fixing;

one end of the crimping pipe extends to the outside of the insulating cross arm along the length direction of the insulating cross arm and is provided with a pin hole;

The fixed fitting comprises a fixed box, fixing holes for the crimping pipe to penetrate into the inside of the fixed box are symmetrically formed in the opposite sides of the fixed box, and bolts matched with the pin holes in use are inserted into the fixed box.

Preferably, a damping rubber pad is arranged on the inner side of the wire slot.

Preferably, a positioning groove is formed in the wire slot, and a boss matched with the positioning groove in an adaptive inserting mode is arranged on one side of the damping rubber pad in a protruding mode.

Preferably, the outer side wall of the wire clamp body is provided with a hanging ring, and the hanging ring can be used as a hanging point of a pulley for construction.

Preferably, the crimp tube extending to the outside of the insulating cross arm is provided with a relief groove, and the crimp tube in the relief groove deforms.

Compared with the prior art, the utility model has the beneficial effects that:

the insulating cross arm and the fixing hardware used in the single loop and the double loop are standardized and generalized.

The clamping and fixing are realized through the matching of the quick locking bolt and the nut, and the nut can be matched with an external electric tool to realize quick installation; in a long-term wind vibration environment in coastal areas, the bolt and nut fixing mode is adopted to prevent the relative compression ring from loosening to cause detachment. The damping rubber pads with different thicknesses can be replaced to realize the pairing use of the wire diameters in a larger range.

The positioning grooves formed in the boss and the wire grooves of the damping rubber pad are matched and installed, so that the problem of sliding of the damping rubber pad caused by unbalanced tension of the wires can be effectively avoided.

The bolt and the pin hole are matched, so that the bolt is convenient and quick to detach and install, and the insulation rod of the insulation cross arm is directly perforated, so that the integral strength of the insulation rod can be damaged, and a pressing connection pipe with the pin hole is additionally arranged at the end part of the insulation rod; the pressure connecting pipe is provided with the avoidance groove for deformation, so that the pressure connecting pipe is favorable for adapting to fixed boxes with various specifications and models.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a dual-loop composite cross arm structure of the present utility model in use;

FIG. 2 is a schematic diagram of a single loop composite cross arm construction scenario of the present utility model;

FIG. 3 is a cross-sectional view of a composite insulating crossarm of the present utility model;

FIG. 4 is a schematic perspective view of a quick lock clip of the present utility model;

FIG. 5 is a schematic view of the damping rubber pad of the present utility model;

FIG. 6 is a schematic view of a clip body of the present utility model;

FIG. 7 is a schematic view of the structure of the fixing fitting of the present utility model;

FIG. 8 is a schematic view of a crimp tube according to the present utility model.

1. The wire clamp is locked quickly; 2. an insulating cross arm; 3. fixing hardware fittings; 4. an electric pole;

1-1, a wire clamp cover plate; 1-2, a wire clamp hinge pin; 1-3, a damping rubber pad; 1-31, damping rubber pad trunking; 1-32, boss; 1-4, a bolt hinge pin; 1-5, quick locking bolts; 1-6, a wire clamp body; 1-61, lower arc trunking; 1-62, locking groove; 1-63, hanging rings; 2-1, insulating rod; 2-2, insulating jackets; 2-3, crimping tube; 2-4, avoiding grooves;

3-1, a U-shaped flat hoop; 3-2, arc plate; 3-3, a bottom plate; 3-4, fixing the box; 3-5, fastening pieces; 3-6, a bolt.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples: as shown in fig. 1-8:

The electric pole comprises a fixed fitting 3 and an insulating cross arm 2, wherein the insulating cross arm 2 is symmetrically arranged on the left side and the right side of the fixed fitting 3, and the fixed fitting 3 is horizontally fixed on the electric pole 4; one end of the insulating cross arm 2 is fixed on the fixed fitting 3, and the other end of the insulating cross arm 2 is provided with a quick locking wire clamp 1;

As shown in fig. 3, the insulating crossarm 2 includes an insulating rod 2-1, and an insulating jacket 2-2 provided on the outer side wall of the insulating rod 2-1. The insulating jacket 2-2 is provided with large and small umbrella skirts, and has good insulating effect under severe pollution. One end of the insulating cross arm 2 is fixedly connected with the fixed wire clamp body 1-6 in a crimping way, and the other end of the insulating cross arm 2 is fixedly connected with the crimping pipe 2-3 in a crimping way.

As shown in fig. 4-6, the quick-lock wire clamp 1 comprises a wire clamp cover plate 1-1, a wire clamp hinge pin 1-2, a damping rubber pad 1-3, a bolt hinge pin 1-4, a quick-lock bolt 1-5 and a wire clamp body 1-6;

The rear end of the wire clamp body 1-6 is fixedly connected with the insulating cross arm 2 in a pressing mode, the front end of the wire clamp cover plate 1-1 is hinged to the front end of the wire clamp body 1-6 through the wire clamp hinge pin 1-2, the rear end of the wire clamp cover plate 1-1 is hinged to the quick locking bolt 1-5 through the bolt hinge pin 1-4, a plurality of nuts are connected to the quick locking bolt 1-5 in a threaded mode, and a locking groove 1-62 is formed in the middle of the wire clamp body 1-6; the bottom wall of the wire clamp cover plate 1-1 forms an upper arc wire slot, the top wall of the wire clamp body 1-6 forms a lower arc wire slot 1-61 as shown in fig. 6, and the upper arc wire slot and the lower arc wire slot 1-61 are matched to form a wire slot for an insulated wire to pass through.

The damping rubber pads 1-3 have various thickness specifications.

As shown in FIG. 5, one side surface of the damping rubber pad 1-3 is sunken to form a damping rubber pad wire slot 1-31, the other opposite side surface is convexly provided with a boss 1-32, corresponding positioning grooves are formed on the upper arc wire slot and the lower arc wire slot 1-61, the boss 1-32 is matched with the positioning grooves in a matched and detachable inserting manner, the damping rubber pad 1-3 has various types and specifications and has various thicknesses, the damping rubber pad 1-3 with the corresponding thickness can be selected according to the needs, and the damping rubber pad 1-3 is installed on the upper arc wire slot/the lower arc wire slot 1-61 through the matching of the positioning grooves and the boss 1-32.

When the wire clamp cover plate 1-1 is used, an insulated wire is firstly opened, the quick locking bolt 1-5 passes through the locking groove 1-62 of the wire clamp body 1-6, the nut is mounted on the quick locking bolt 1-5 through the electric wrench to realize tightening, in the process, the upper damping rubber pad 1-3 and the lower damping rubber pad 1-3 in the wire slot compress the insulated wire, and the stable matching of the quick locking bolt 1-5 and the wire clamp cover plate 1-1 is ensured by utilizing the compression resilience force and the screw thread fastening force of the damping rubber pad 1-3.

The fixed fitting 3 adopts symmetrical structure, can install insulating cross arm 2 in fixed fitting 3 one side as shown in fig. 2, as shown in fig. 1, also can all install insulating cross arm 2 in fixed fitting 3 both sides, can select the insulating crosspiece 2 quantity of fixed fitting 3 installation according to the demand, makes things convenient for switching to reform transform between later stage single return circuit and the double return circuit.

The insulating cross arm 2 is made of resin-based glass fiber reinforced composite materials. The fixed end of the crimping pipe 2-3 is fixedly crimped at the end part of the insulating cross arm 2, the deformed end of the crimping pipe 2-3 extends to the outer side of the insulating cross arm 2 and is provided with a pin hole, and the deformed end of the crimping pipe 2-3 is provided with an avoidance groove 2-4 as shown in fig. 8. The deformation end of the pressure connection pipe 2-3 is not deformed under the normal condition without applying set pressure, the deformation of the deformation end of the pressure connection pipe 2-3 can be expanded or contracted by applying pressure to the deformation end of the pressure connection pipe 2-3 by using an external tool, the width of the avoidance groove 2-4 changes along with the deformation in the process, the pairing of the fixed hardware fitting 3 and the cross arm part 2 with different types is facilitated, and the avoidance groove 2-4 provides a movable space for the deformation of the deformation end of the pressure connection pipe 2-3. The outer contour of the fixed end of the crimp tube 2-3 is not larger than the outer contour of the deformed end of the crimp tube 2-3.

In the later maintenance process, the insulating cross arms 2 and the fixed boxes 3-4 with different specifications are matched for use, and at the moment, the outer contour of the deformed end of the pressure connecting pipe 2-3 is approximately the same as the contour of the fixed Kong Nalun of the fixed box 3-4 by changing the shape of the deformed end of the pressure connecting pipe 2-3, and then the pressure connecting pipe is matched for use.

As shown in fig. 7, the fixing fitting 3 comprises a bottom plate 3-3 and a fixing box 3-4 fixed on one side of the bottom plate 3-3, an arc plate 3-2 is fixedly arranged on the other side of the bottom plate 3-3, a U-shaped flat hoop 3-1 is arranged on one side of the bottom plate 3-3 far away from the fixing box 3-4, and two foot ends of the U-shaped flat hoop 3-1 are locked on the bottom plate 3-3 through a fastener 3-5 (a nut); external threads are arranged on two foot ends of the U-shaped flat hoop 3-1, a plurality of holes for the corner ends of the U-shaped flat hoop 3-1 to pass through are symmetrically arranged on two sides of the bottom plate 3-3, and the two foot ends of the U-shaped flat hoop 3-1 pass through the holes on one side of the bottom plate 3-3 to the other side of the bottom plate 3-3 and are locked on the other side of the bottom plate 3-3 through fasteners 3-5.

The fixed hardware fitting 3 is fixed on the electric pole 4 through the cooperation of the arc-shaped plate 3-2 and the U-shaped flat hoop 3-1.

The deformation end of the crimping pipe 2-3 is fixed in the fixed box 3-4, the fixed end of the crimping pipe 2-3 is crimped and fixed with the insulating cross arm 2, and the fixed box 3-4 is movably inserted with a bolt 3-6; the opposite sides of the fixed box 3-4 are symmetrically provided with fixed holes for the pressure connection pipes 2-3 to penetrate into the fixed box 3-4;

The deformation end of the pressure connection pipe 2-3 is inserted into the fixing hole of the fixing box 3-4, then the bolt 3-6 is inserted into the pin hole, and the pressure connection pipe 2-3 is fixed relative to the fixing box 3-4 through the pin hole cooperation of the bolt 3-6 and the deformation end of the pressure connection pipe 2-3. The fixing mode of the bolts 3-6 and the pin holes avoids the operation of fastening bolts of the traditional cross arm, and is convenient to install and replace.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the utility model disclosed above are intended only to assist in the explanation of the utility model. The preferred embodiments are not exhaustive or to limit the utility model to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best understand and utilize the utility model. The utility model is limited only by the claims and the full scope and equivalents thereof.

Claims (4)

1. The utility model provides a linear type composite insulation cross arm of distribution lines, includes fixed fitting (3), fixed fitting (3) are fixed in on pole (4), fixed fitting (3) opposite both sides can dismantle the symmetry and install insulating cross arm (2), insulating cross arm (2) both ends are provided with quick locking fastener (1) and crimping pipe (2-3) respectively, its characterized in that:

The quick locking wire clamp (1) comprises a wire clamp body (1-6) and a wire clamp cover plate (1-1) which are in hinged fit through a wire clamp hinge pin (1-2), a wire slot for an insulated wire to pass through is arranged between the wire clamp body (1-6) and the wire clamp cover plate (1-1), a quick locking bolt (1-5) is hinged at the rear end of the wire clamp cover plate (1-1), and the quick locking bolt (1-5) passes through a locking groove (1-62) formed at the rear end of the wire clamp body (1-6) to be matched with a nut to realize clamping and fixing;

One end of the crimping pipe (2-3) extends to the outside of the insulating cross arm (2) along the length direction of the insulating cross arm (2) and is provided with a pin hole, an avoidance groove (2-4) is formed in the crimping pipe (2-3) extending to the outside of the insulating cross arm (2), and the crimping pipe (2-3) in the part deforms through the avoidance groove (2-4);

The fixing hardware fitting (3) comprises a fixing box (3-4), fixing holes for the compression joint pipe (2-3) to penetrate into the fixing box (3-4) are symmetrically formed in the opposite sides of the fixing box (3-4), and bolts (3-6) matched with the pin holes in use are inserted into the fixing box (3-4).

2. The distribution line linear composite insulating crossarm of claim 1, wherein: a damping rubber pad (1-3) is arranged on the inner side of the wire slot.

3. The distribution line linear composite insulating crossarm of claim 2, wherein: a positioning groove is formed in the wire slot, and a boss (1-32) matched with the positioning groove in an adaptive inserting mode is arranged on one side of the damping rubber pad (1-3) in a protruding mode.

4. The distribution line linear composite insulating crossarm of claim 1, wherein: the outer side wall of the wire clamp body (1-6) is provided with a hanging ring (1-63).