CN220857609U - High-voltage down-lead cable terminal junction box - Google Patents

Abstract

The utility model relates to the field of 10kv overhead insulated conductor down-lead, in particular to a high-voltage down-lead cable terminal junction box, which comprises a shell, wherein a connecting component is arranged in the shell, the connecting component comprises a fastener and a connecting pipe, tapered sections are arranged at two ends of the connecting pipe, a plurality of open through grooves are arranged on the first tapered section to equally divide the tapered sections, the fastener is sleeved at two ends of the connecting pipe, and is in threaded connection with the connecting pipe.

Description

High-voltage down-lead cable terminal junction box

Technical Field

The utility model relates to the field of 10kv overhead insulated conductor down-lead, in particular to a high-voltage down-lead cable terminal junction box.

Background

For a 10kv overhead insulated conductor terminal down conductor, the current national power grid adopts an insulated cable terminal, adopts a wiring terminal for direct installation, or adopts a parallel groove clamp and the like for installation. The first installation mode is poor in waterproof performance, water is fed into the lead, and resistance of the lead is increased to generate heat due to easy oxidation of the lead after water is fed. Secondly, the wire clamps and the terminal products are exposed or semi-exposed outdoors, and the products are easy to oxidize, so that the service life of the trunk line is shortened; thirdly, dust in the environment contaminates the hardware fitting to influence the insulation performance of the whole cable terminal, and accidents are easily caused by discharging to the ground. All the drawbacks of the prior art are addressed by a terminal box that solves the above-mentioned problems.

Disclosure of utility model

The utility model aims to provide a high-voltage down-lead cable terminal junction box, which not only can prevent water and dust, but also can reduce contact resistance and can keep a good running state for a long time so as to solve the defects of the prior art and the technical requirements which cannot be met.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a high voltage downlead cable terminal box, includes the shell, be provided with coupling assembling in the shell, coupling assembling includes fastener and connecting pipe, the both ends of connecting pipe are provided with the tapering section, be provided with a plurality of openings on the tapering section and lead to the groove and divide the tapering section equally, the both ends of connecting pipe all overlap and are equipped with the fastener, fastener and connecting pipe threaded connection.

Preferably, the two ends of the shell are provided with wire inlets, the wire inlets are internally provided with protective pieces, and the end parts of the wire inlets are fixedly connected with the protective pieces.

Preferably, the protection piece comprises a wire tube and a wire tube, wherein the wire tube is fixedly connected with the two ends of the wire tube, the inner wall of the wire tube is in a horn shape, and the outer wall of the wire tube is tightly connected with the inner wall of the wire inlet.

Preferably, the wire inlet is provided with external threads, and the protecting piece is in threaded connection with the wire inlet.

Preferably, the protecting piece is provided with a through hole, and the outer surface of the protecting piece is nut-shaped.

Preferably, the protection piece is a waterproof cover, and the protection piece and the shell are both insulators made of ultraviolet-resistant materials.

Preferably, the fastener is a long tail nut with the same taper as the connecting pipe.

Preferably, the connecting pipe is made of an aluminum alloy pipe material.

Preferably, the protection has a waterproof rating of at least ip68.

Preferably, the number of the open through grooves is 6.

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

1. According to the application, the connecting pipe is provided with the taper section, and the opening through groove is arranged to equally divide the taper section, so that the connecting pipe has a contraction function, and then the fastening piece is matched with the connecting pipe, so that the connecting pipe can contract to tightly hold the lead when the fastening piece is screwed in, and larger holding power and stability are provided.

2. The fastener and the connecting pipe are convenient to install, the guide pipe is arranged on the protecting piece, the lead is convenient to insert, the nut type of the fastener and the protecting piece is more convenient to twist and install by using a common wrench tool, and the contact lead of the connecting pipe is in a circle of contact, so that the contact resistance is far smaller than that of similar products.

3. The protection piece and the shell are insulators made of ultraviolet-resistant materials, the two ends of the shell are designed to be locked waterproof, the waterproof grade can reach ip68, and the effects of dust prevention and water prevention can be achieved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of a part of the structure of the present utility model;

FIG. 3 is a schematic view of a connecting pipe according to the present utility model;

FIG. 4 is a schematic view showing the mating assembly of the connecting tube and the fastener according to the present utility model;

FIG. 5 is a schematic view of a guard structure according to the present utility model;

In the figure: 1. a housing; 11. a wire inlet; 12. a guard, 121, a conduit; 122. a lead tube; 12. a guard; 13. a protective member; 2. a fastener; 3. a connecting pipe; 31. a taper section; 32. the opening is provided with a through groove.

Detailed Description

The technical solutions according to the embodiments of the present utility model will be clearly and completely described below with reference to fig. 1 to 5 of the embodiments of the present utility model, and it is obvious that the described embodiments 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.

In the description of the present utility model, it is to be understood that: the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.

Referring to the drawings, embodiments of the utility model

Examples:

As shown in fig. 1, 2, 3 and 4: the utility model provides a high voltage downlead cable terminal box, includes shell 1, be provided with coupling assembling in the shell 1, coupling assembling includes fastener 2 and connecting pipe 3, the both ends of connecting pipe 3 are provided with tapering section 31, are provided with 6 opening through groove 32 on the tapering section and divide tapering section 31 equally, the both ends of connecting pipe 3 all overlap and are equipped with fastener 2, fastener 2 and connecting pipe 3 threaded connection.

When the connecting pipe 3 is equally divided in use, the taper section 31 is arranged, the shell 1 is contracted inwards under the action of the fastener 2, the taper section 31 can tightly hold a wire, the 6 opening through grooves are arranged to equally divide the taper section 31, the stress area is reduced under the same pressure, the pressure of each equally divided taper section 31 to the wire is increased, the strength of the taper section 31 can be ensured, the strength of the taper section 31 cannot be insufficient due to the fact that the equally divided taper section 31 is too much, and the inner diameter of the connecting pipe 3 is of the same grade as that of the inserted wire.

As shown in fig. 2: the two ends of the shell 1 are provided with wire inlets 11, a protecting piece 12 is arranged in the wire inlets 11, and the end parts of the wire inlets 11 are fixedly connected with protecting pieces 13.

The arrangement of the protecting piece 12 can better isolate the inside and the outside of the shell 1, so that external dust is prevented from entering the inside of the shell 1 from the wire inlet, and the arrangement of the protecting piece 13 further cuts apart the inside and the outside of the shell 1, so as to further protect the internal space.

As shown in fig. 2 and 5: the protection piece 12 comprises a wire tube 121 and a wire tube 122, the wire tube 122 is fixedly connected to two ends of the wire tube 121, the inner wall of the wire tube 122 is in a horn shape, and the outer wall of the wire tube 122 is tightly connected with the inner wall of the wire inlet 11.

The main purpose of the arrangement of the protecting piece 12 is to fully fill the gap space between the wire and the wire inlet after the wire is inserted, if the wire inlet 11 is arranged to be the same as the diameter of the section of the wire, the wire is not inserted well during installation, and the wire inlet 11 is arranged to be larger, so that the shell 1 of the application can adapt to wires with more sizes, the protecting piece 12 and the connecting pipe 3 can be replaced at any time according to the model of the wire, the arrangement of the wire pipe 122 can better enable the wire to be inserted, and the wire pipe 121 is arranged to be the aperture matched with the section of the wire, so as to further reduce the residual space and prevent dust from entering.

As shown in fig. 2: the wire inlet 11 is provided with external threads, and the protecting piece 13 is in threaded connection with the wire inlet 11.

The protecting piece 13 is provided with a through hole, and the outer surface of the protecting piece 13 is nut-shaped.

The inside of the through hole is also clung to the wire, so that the clearance space is reduced, the protection effect is enhanced, and the nut-shaped appearance is convenient to operate by using an ordinary wrench.

As shown in fig. 1 and 2: the protecting piece 13 is a waterproof cover, and the protecting piece 13 and the shell 1 are both insulators made of ultraviolet-resistant materials.

The inner ultraviolet rays can ensure that the application can normally work for a long time in the sun, the service life and the durability of the application are prolonged, and the insulation is used for electric shock in a mode.

As shown in fig. 1, 2 and 4: the fastener 2 is a long tail nut with the same taper as the connecting pipe 3.

The long tail nut with the same taper can better extrude the connecting pipe 3, so that the taper section 31 can realize better contraction effect.

The connecting pipe 3 is made of aluminum alloy pipe materials.

The waterproof grade of the protector 13 is ip68.

By combining the waterproofing of the protector 13 with the dust prevention of the protector 12, the wires inside the housing 1 are fully ensured.

Working principle: when the application is used, the shell 1 is opened firstly, the fastening piece 2 is unscrewed or loosened, then the wire sequentially passes through the protecting piece 13 and the protecting piece 12, then passes through the fastening piece 2, then stretches into the connecting pipe 3, then screws the fastening piece 2 by using a spanner, the taper section 31 is contracted inwards along with the screwing of the fastening piece 2, the wire is tightly held, after the wire is installed, the wire at the other end is also installed in the connecting pipe 3 according to the sequence, the shell 1 is assembled after the installation is completed, and the protecting piece 13 is screwed at two ends of the shell 1 by using the spanner to finish the installation.

While the fundamental and principal features of the utility model and advantages of the utility model have been shown and described, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to specific embodiments, and that the embodiments described in the examples can be combined as appropriate to form other embodiments that will be understood by those skilled in the art.

Claims (10)

1. The utility model provides a high-voltage down-lead cable terminal box, its characterized in that, including shell (1), be provided with coupling assembling in shell (1), coupling assembling includes fastener (2) and connecting pipe (3), the both ends of connecting pipe (3) are provided with tapering section (31), are provided with a plurality of opening through groove (32) on the tapering section and divide tapering section (31) equally, the both ends of connecting pipe (3) all overlap and are equipped with fastener (2), fastener (2) and connecting pipe (3) threaded connection.

2. The high-voltage down-lead cable terminal junction box according to claim 1, wherein two ends of the housing (1) are provided with wire inlets (11), a protection piece (12) is arranged in the wire inlets (11), and the end part of the wire inlets (11) is fixedly connected with a protection piece (13).

3. The high-voltage down-lead cable termination junction box according to claim 2, wherein the protecting piece (12) comprises a wire tube (121) and a wire tube (122), the two ends of the wire tube (121) are fixedly connected with the wire tube (122), the inner wall of the wire tube (122) is horn-shaped, and the outer wall of the wire tube (122) is tightly connected with the inner wall of the wire inlet (11).

4. A high voltage down conductor cable termination box according to claim 2 or 3, characterized in that the inlet (11) is provided with an external thread, and the protector (13) is in threaded connection with the inlet (11).

5. The high-voltage down-lead cable termination box according to claim 4, wherein the protector (13) is provided with a through hole, and the outer surface of the protector (13) is nut-shaped.

6. The high-voltage down-lead cable termination junction box according to claim 5, wherein the protective member (13) is a waterproof cover, and the protective member (13) and the housing (1) are insulators made of ultraviolet-resistant materials.

7. A high voltage down conductor cable termination box according to claim 1, 2, 3, 5 or 6, characterized in that the fastener (2) is a long tail nut of equal taper as the connecting tube (3).

8. A high voltage down conductor cable termination box according to claim 7, characterized in that the connection tube (3) is made of aluminium alloy tube material.

9. A high voltage down conductor cable termination connection box according to claim 6, characterized in that the protection member (13) has a waterproof rating of at least ip68.

10. A high voltage down conductor cable termination junction box according to claim 1, 2, 3, 5, 6, 8 or 9, characterized in that the number of open through slots (32) is 6.