CN200976477Y - Underground high-voltage cable tapping box - Google Patents

Abstract

The utility model relates to a buried cable branch box, which is characterized in that the box is composed of a box frame, a support frame which is arranged in the box frame, three parallel cable connecting plugs which are positioned on the support frame, three inlet cables which across the box frame and are connected with the three parallel cable connecting plugs and a box cover which is airproof connected with the box frame. The preferable aspect of the cable connecting plugs is the adoption of the integrated structure. The utility model has the favorable capabilities of waterproof, moisture proof, anticorrosion and rust prevention. The cable branch box is buried under the ground. The over ground area is saved, as well as the environmental is beautified, the box can not be affected by the external environment, and the equipment circuit can be insured to safe operation.

Description

Buried high voltage cable distribution box

technical field

The utility model relates to a cable connection and installation device in a power supply and distribution system with a rated voltage of 6-12kV and a rated current of 630A or below, in particular to an underground high-voltage cable distribution box.

technical background

In the prior art, the high-voltage cable distribution boxes are generally installed on the outdoor ground, which not only occupies the ground area, but also is very unsightly, especially installing high-voltage cable distribution boxes of different sizes on both sides of the streets in cities and towns, which is very harmful to the appearance of the city. There are adverse effects, and the "high voltage danger" sign is often written on the box body, which is intended to draw people's attention not to approach, otherwise life may be in danger. This kind of high-voltage cable distribution box on the outdoor ground is neither safe nor affects the appearance of the environment in use.

Contents of the invention

The purpose of the utility model is to overcome the deficiencies in the prior art and provide a buried high-voltage cable distribution box suitable for underground installation and safe and reliable.

The technical solution of the utility model is: an underground high-voltage cable distribution box, which is characterized in that: the box body (8), the support frame (11) arranged in the box body (8), is installed on the support frame 3 (i.e. three-phase) parallel cable connection plugs (5) on (11) pass through the box body (8) and the 3 incoming cables (4) connected to each cable connection plug (5) respectively, pass through The box body (8) is composed of 3 outgoing cables (6) connected to each cable connection plug (5) or an integer multiple thereof, and a box cover (9) sealingly connected with the box body (8).

In the technical solution of the utility model: a sealing gasket (17) is also arranged between the upper end of the box body (8) and the box cover (9).

In the technical solution of the present utility model: said incoming cable (4) and outgoing cable (6) pass through the box body (8) and are also covered with rubber sleeves (16) [case cover (9) and box body ( 8) It is better to adopt double-layer sealing between them].

In the technical solution of the utility model: a section outside the box body (8) of the incoming cable (4) and the outgoing cable (6) is respectively installed on a cable clamp (7).

In the technical solution of the utility model: the cable connection plug (5) is a single plug, and the single plug is composed of:

An integrally formed insulating shell (18), which has a mounting base (15), an incoming wire hole (19) and an incoming wire mounting hole (20), an outgoing wire hole (21) and an outgoing wire mounting hole ( twenty two);

A conductive seat (14) fixedly arranged in the insulating shell (18), and the conductive seat (14) has an inlet hole (19) and an inlet installation hole (20), an outlet hole (21) and an outlet installation hole (22) The hole corresponding to the position;

A bolt (13) threaded with the conductive seat (14) or the conductive seat (14) and the insulating shell (18) through the incoming line installation hole (20); one through the outgoing line installation hole (22) and the conductive seat (14) Or the bolt (24) that conduction seat (14) and insulating casing (18) threaded connection;

It consists of a rubber cover (10) threaded or sleeved with the wire inlet installation hole (20), and a rubber cover (23) threaded or sleeved with the wire outlet installation hole (22). That is, the cable wires enter and exit the cable connection plug.

Lock washers (27) and nuts (26) can also be set on the bolts (13) and the bolts (22) respectively.

The conductive seat (14) under the bolt (13) and the bolt (24) is also provided with a wire pressing plate (12) respectively.

The cable connection plug (5) can also include an integrally formed insulating shell (25) with a mounting base, an outlet hole and an outlet mounting hole, a conductive seat fixedly arranged in the insulating shell (25), the conductive seat There are holes corresponding to the position of the outlet hole and the outlet installation hole, a bolt threaded to the conductive seat or the conductive seat and the insulating shell (25) through the outlet installation hole, and a rubber cover that is threaded or sleeved with the outlet installation hole ; The insulating shell (18) is fixedly connected or integrated with the adjacent end of the insulating shell (25), and the conductive seat (14) is fixedly connected or integrated with the adjacent end of the conductive seat. That is to form a cable connection plug with one input and two output cables.

The cable connection plug (5) can also be a cable connection plug with one entry and three exits, one entry Four-outlet cable connection plug, two-input and two-outlet cable connection plug, two-input and three-outlet cable connection plug, two-input and four-outlet cable connection plug, two-input and five-outlet cable connection plug or their combination and other structural forms.

Compared with the prior art, the utility model has the following characteristics and good effects:

(1) There is a sealed connection between the box cover and the box body. Both the incoming and outgoing cables enter the box through rubber sleeves. The whole box has good waterproof, moisture-proof, anti-corrosion and anti-rust properties;

(2) With the utility model, it is buried underground for use without occupying the ground area, which not only saves the ground area, is not affected by the external environment, reduces man-made external damage, ensures the safe operation of equipment lines, but also does not affect the beautiful environment, which is beneficial to the environment beautify;

(3) The insulating shell of the cable connection plug in the utility model adopts an integrated structure, and the structure is very simple, and the hidden danger of tide in the power-on operation is obviously reduced, and the probability of short-circuit power failure and electric shock accident is small, and the operation is stable and safe. Significantly improved; high versatility, which can change the current situation of many inconveniences caused by users' use and manufacturers' stocking; the on-site installation process is easy, simple, convenient, and reliable; the circuit is not limited, and the power distribution scheme can be combined arbitrarily;

(4) The product of the utility model is easy to manufacture, has safe and reliable performance, can synthesize various power supply and distribution schemes arbitrarily, can fully meet the requirements of users, and has the characteristics of economy and strong practicability.

Description of drawings

Fig. 1 is a structural representation of the utility model;

Fig. 2 is a schematic diagram of an enlarged cross-sectional structure at A of Fig. 1;

Fig. 3 is a schematic diagram of an enlarged cross-sectional structure at B of Fig. 1;

Fig. 4 is a schematic structural view of the cable connection plug in Embodiment 1 of the utility model;

Fig. 5 is a schematic diagram of the cross-sectional structure of A-A of Fig. 4;

Fig. 6 is a top view structural schematic diagram of Fig. 4

Fig. 7 is a schematic diagram of the B-B sectional structure of Fig. 6;

Fig. 8 is a schematic diagram of a part of the structure connected with cable cores and the like in Fig. 7;

Fig. 9 is a schematic structural view of the cable connection plug in Embodiment 2 of the present utility model;

Fig. 10 is a schematic structural view of Embodiment 1 of the present utility model;

Fig. 11 is a partial longitudinal sectional structural schematic diagram of Fig. 10;

Fig. 12 is a schematic diagram of the C-C sectional structure of Fig. 10;

Fig. 13 is a structural schematic diagram of Embodiment 2 of the utility model.

In the figure: 1-cable distribution box, 2-cover plate, 3-cable pool, 4-incoming cable, 5-cable connecting plug, 6-outgoing cable, 7-cable clamp, 8-box body, 9- Box cover, 10-rubber cover, 11-support frame, 12-clamping plate, 13-bolt, 14-conductive seat, 15-installation base, 16-rubber sleeve, 17-sealing gasket, 18-insulation shell, 19 -wire inlet, 20-wire inlet installation hole, 21-wire outlet hole, 22-wire outlet installation hole, 23-rubber cover, 24-bolt, 25-insulation shell, 26-nut, 27-lock washer.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described further by embodiment.

Embodiment 1: See accompanying drawings 1-8, 10-12.

An underground high-voltage cable distribution box consists of a box body 8, a support frame 11 arranged in the box body 8, and three parallel cable connection plugs 5 installed on the support frame 11, which pass through the box body 8 and connect with the 3 incoming cables 4 connected to each cable connecting plug 5, 3 outgoing cables 6 respectively connected to each cable connecting plug 5 through the box body 8, and 3 outgoing cables 6 connected to the box body 8 in a sealed manner (for example, fastened by bolts, etc.) Case cover 9 is formed;

A sealing gasket 17 is provided between the upper end of the box body 8 and the box cover 9 [it is preferable to adopt double-layer sealing between the box cover 9 and the box body 8];

The incoming cable 4 and the outgoing cable 6 are covered with rubber sleeves 16 at 8 places passing through the box body;

A section outside the box body 8 of the incoming cable 4 and the outgoing cable 6 is installed on a cable clamp 7 respectively;

Described cable connection plug 5 is a plug monomer (that is, cable wire one enters one cable connection plug), and this plug monomer consists of:

An integrally formed insulating shell 18, the insulating shell 18 has a mounting base 15, an incoming line hole 19, an incoming line mounting hole 20, an outgoing line hole 21, and an outgoing line mounting hole 22;

A conductive seat 14 fixedly arranged in the insulating shell 18, the conductive seat 14 has holes corresponding to the positions of the incoming wire hole 19, the incoming wire installation hole 20, the outgoing wire hole 21 and the outgoing wire installation hole 22;

A bolt 13 that is threaded to the conductive seat 14 or the conductive seat 14 and the insulating shell 18 through the incoming line mounting hole 20; a bolt 24 that is threaded to the conductive seat 14 or the conductive seat 14 and the insulating shell 18 through the outgoing line mounting hole 22;

A rubber cover 10 threaded or socketed with the incoming line installation hole 20, and a rubber cover 23 threaded or socketed with the outgoing line installation hole 22;

The bolt 13 and the bolt 22 are respectively covered with anti-loosening washers 27 and threaded with nuts 26;

The conductive seat 14 below the bolt 13 and the bolt 24 is respectively provided with a wire pressing plate 12 .

The box body 8 and the box cover 9 can be bent and welded by stainless steel plates, the joints of the steel plates are welded, and the surfaces of the box body and the box cover are plastic-sprayed. The size of the box is determined by the number of connecting cables.

Before installing the cable distribution box in this embodiment, dig out the cable pool 3 according to the installation basis diagram of the distribution box. The cable pool 3 is built with earth bricks and concrete, and then the distribution box is installed according to the technical requirements. The cover plate 2 is reinforced concrete. The depth of the distribution box buried under the ground should not be less than 600mm. After the distribution box is installed, open the box cover 9, peel off the outer layer at the ends of the incoming cable 4 and the outgoing cable 6 with a length of about 60mm to expose the core, and then pass the core of the cable end through the rubber sleeve 16 directly. Insert in the cable connection plug 5 holes, then pack into the wire crimping plate 12, then load onto the bolt and tighten. The wire core of the cable end is connected as a whole with the conductive seat 14 in the cable connection plug. After the cables are connected, cover the rubber cover, wrap and seal the cable and the cable connection plug 5 entrance with insulating tape, and apply silicone grease to the connection between the cable and the rubber sleeve for sealing. Cover the case cover 9 again, tighten the connecting bolts between the case body 8 and the case cover 9, and compress the gasket 17. The incoming and outgoing cables are pressed down with the cable clamping plate 7 respectively. After the installation of the distribution box is completed, the cement cover can be covered only after passing the test and inspection.

Embodiment 2: see accompanying drawing 9,13.

An underground high-voltage cable distribution box, the cable connection plug 5 adopts a cable connection plug with one input and two output cables, that is, it includes the structure and composition of Embodiment 1, and also includes a mounting base, an outlet hole and an outlet installation hole An integrally formed insulating shell 25, a conductive seat fixedly arranged in the insulating shell 25, the conductive seat has a hole corresponding to the position of the outlet hole and the outlet installation hole, and one through the outlet installation hole and the conductive seat or the conductive seat and the insulation The bolts of the shell 25 threaded connection, and a rubber cover threaded or sleeved with the outlet mounting hole; the insulating shell 18 is fixedly connected or integrated with the adjacent end of the insulating shell 25, and the conductive seat 14 and the conductive seat The adjacent ends are fixedly connected or joined together. There are 6 outgoing cables 6 . Others are the same as in Example 1, omitted.

The utility model is not limited to the above-mentioned embodiments, and all the technical solutions of the utility model can be implemented, and have the above-mentioned good effects.

Claims (8)

1. An underground high-voltage cable distribution box is characterized in that: the box body (8), the support frame (11) arranged in the box body (8), and the 3 support frames (11) are installed The parallel cable connection plugs (5) pass through the box body (8) to connect with the 3 incoming cables (4) respectively connected to the cable connection plugs (5), pass through the box body (8) and respectively connect to the cable connection plugs ( 5) 3 outgoing cables (6) connected or multiples thereof, and a box cover (9) sealingly connected with the box body (8). 2. The buried high-voltage cable distribution box according to claim 1, characterized in that: a sealing gasket (17) is arranged between the upper end of the box body (8) and the box cover (9). 3. The buried high-voltage cable distribution box according to claim 1, characterized in that: said incoming cables (4) and outgoing cables (6) pass through the box body (8) with rubber sleeves ( 16). 4. The buried high-voltage cable distribution box according to claim 1, characterized in that: a section of the incoming cable (4) and the outgoing cable (6) outside the box body (8) are respectively installed in a on the cable clamp (7). 5. The buried high-voltage cable distribution box according to claim 1, characterized in that: the cable connection plug (5) is a single plug, and the single plug is composed of: An integrally formed insulating shell (18), which has a mounting base (15), an incoming wire hole (19) and an incoming wire mounting hole (20), an outgoing wire hole (21) and an outgoing wire mounting hole ( twenty two); A conductive seat (14) fixedly arranged in the insulating shell (18), and the conductive seat (14) has an inlet hole (19) and an inlet installation hole (20), an outlet hole (21) and an outlet installation hole (22) The hole corresponding to the position; A bolt (13) that is threadedly connected to the conductive seat (14) or the conductive seat (14) and the insulating shell (18) through the incoming line installation hole (20); one through the outgoing line installation hole (22) and the conductive seat (14) or Conductive seat (14) and the bolt (24) of insulating shell (18) threaded connection; It consists of a rubber cover (10) threaded or sleeved with the wire inlet installation hole (20), and a rubber cover (23) threaded or sleeved with the wire outlet installation hole (22). 6. The underground high-voltage cable distribution box according to claim 5, characterized in that: said bolts (13) and bolts (22) are respectively covered with anti-loosening washers (27) and threaded with nuts ( 26). 7. The buried high-voltage cable distribution box according to claim 5, characterized in that: the bolts (13) and the conductive seats (14) below the bolts (24) are also provided with crimping plates (12) ). 8. The buried high-voltage cable distribution box according to claim 5, characterized in that: the cable connection plug (5) also includes an integrally formed insulating shell with a mounting base, an outlet hole and an outlet installation hole (25), a conductive seat fixedly arranged in the insulating shell (25), the hole corresponding to the position of the outlet hole and the outlet mounting hole is arranged in the conductive seat, and one through the outlet mounting hole and the conductive seat or the conductive seat and the insulating shell ( 25) Bolts for threaded connection, and a rubber cover that is threaded or sleeved with the outlet mounting hole; the insulating shell (18) is fixedly connected or integrated with the adjacent end of the insulating shell (25), and the conductive seat (14) It is fixedly connected or integrated with the adjacent end of the conductive seat. That is to form a cable connection plug with one input and two output cables.

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