CN217282052U

CN217282052U - Prefabricated wire clamp waterproof insulation box

Info

Publication number: CN217282052U
Application number: CN202220343472.7U
Authority: CN
Inventors: 龚卫兵
Original assignee: Wuhan Arp Intelligent Electric Co ltd
Current assignee: Wuhan Arp Intelligent Electric Co ltd
Priority date: 2022-02-20
Filing date: 2022-02-20
Publication date: 2022-08-23
Anticipated expiration: 2032-02-20

Abstract

The utility model provides a prefabricated formula fastener waterproof insulation box, is equipped with and surrounds the box body of being connected, built-in fastener through the binding nail by top cap and bottom, and the relative both sides of box body respectively are equipped with a pair of through wires hole, and the middle part of bottom is equipped with down the double-layered groove, but the lower part of fastener just in time imbeds in the lower extreme of lower double-layered groove to make the wiring end center of fastener just to the through wires hole. The utility model discloses a connection of cable provides a quick safe convenient insulating waterproof terminal box, can realize electrified quick erection joint to have better insulating waterproof performance, simple to operate just sparingly fills the gel.

Description

Prefabricated wire clamp waterproof insulation box

Technical Field

The utility model relates to an electric power transmission technology, a prefabricated formula fastener waterproof insulation box specifically says so.

Background

The connection mode of the power transmission cable generally comprises the following steps: 1. binding formula cuts the crimping, this type of connection, and the fault node is many, and the line loss is big, and the cable damage is serious, crosses water often to take place electric leakage, electric shock accident in rainy season, and electrician's wiring is nonstandard, and the circuit is indiscriminate, and the extremely difficult examination is looked for the trouble, and the cable is very easily stolen. 2. The connection method has the advantages that the line clamp without the protection box is connected in a branch mode, the trunk line does not need to be cut off, the installation is convenient, and the trunk line is not damaged. However, due to improper installation process and use under severe conditions, the wire clamp has short service life, aging of the shell and rusting or loosening of the screw rod due to environmental factors such as humidity, water soaking and the like, and electric leakage and short circuit can occur in serious conditions, so that the life safety of people is threatened. 3. The branch of the wire clamp is connected, a plurality of joints are jointly provided with a glue filling box, resin glue is filled in the box, and the connection method does not need to cut off the trunk line, is convenient to install and does not damage the trunk line. However, the production quality of the product manufacturers is uneven, the quality cannot be guaranteed, the products are difficult to install or have no space in the initial stage, and the products cannot be overhauled and maintained in the later stage. Due to the fact that no standard exists, the quality cannot be guaranteed, and the situation that encapsulation is not in place often occurs. Once the joint breaks down, the joint can not be disassembled for maintenance. Meanwhile, because the proportion of expansion with heat and contraction with cold is different between the encapsulating material and the cable, the product often takes place into water phenomenon gradually in the later stage operation, and the safety can't be ensured.

However, in the current better gel insulation box, the problems of complex installation and long time consumption still exist. The company provides a gel insulation box with a wire clamp, but the wire clamp is unstable due to separation from a box body, so that the high-altitude installation is inconvenient; the cavity of the box body is large, and the consumption of gel is large; although the isolating piece of the string hole can play a role of blocking gel, the threading is inconvenient.

Disclosure of Invention

The utility model aims to solve the technical problem that an above-mentioned problem is solved, a prefabricated formula fastener waterproof insulation box is provided, box body fixed wire clamp relatively reduces gel filling space to the threading of conveniently working a telephone switchboard.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

prefabricated formula fastener waterproof insulation box, be equipped with and surround the box body of being connected, built-in fastener through the binding nail by top cap and bottom, the relative both sides of box body respectively are equipped with a pair of through wires hole, its characterized in that: the middle part of bottom is equipped with down the double-layered groove of inserting line, down the double-layered groove just in time can imbed the lower part of fastener to make the wiring end center of fastener just right the through wires hole.

Furthermore, an upper wire clamp groove is formed in the middle of the top cover, and the upper portion of the wire clamp is embedded into the upper wire clamp groove.

Preferably, the threading hole is formed by splicing a top cover and a bottom cover at semicircular arcs arranged at corresponding side positions, and the inner side wall of the threading hole is provided with a spacer groove for embedding the spacer.

Preferably, a minimum distance between the upper clip groove and an upper portion of the clip is not more than 1 mm.

Preferably, the minimum spacing between the lower clamp groove and the lower portion of the clamp is no greater than 0.5 mm.

Preferably, the thickness of the isolation sheet is 0.5-1.5 mm.

The utility model discloses a connection of cable provides a quick safe convenient insulating waterproof terminal box, can realize electrified quick erection joint to have better insulating waterproof performance, simple to operate just sparingly fills the gel.

The utility model discloses the lower cover of box body has set up the lower thread clamp groove through mould shaping, and the lower part of fastener is wrapped up in the laminating of lower thread clamp groove, has guaranteed the stability of the preceding fastener of dress on the one hand, and the alignment state of fastener and through wires hole is kept in the location, and the fastener is stable difficult for droing and changes the position simultaneously. The vertical spacer cracks are formed in the spacers, and the thickness of the spacers is limited at the same time, so that the spacers can prevent gel in the box body from overflowing, and meanwhile, cables can conveniently penetrate into wiring ends of the direct wire clamps.

Drawings

Figure 1 is a front view of the whole external structure of the utility model,

figure 2 is a schematic top view of figure 1,

figure 3 is a schematic view of the internal structure of the bottom cover,

figure 4 is a schematic view of the internal structure of the top cover,

figure 5 is a schematic left side view of figure 3,

figure 6 is a schematic left side view of figure 4,

fig. 7 is a schematic view of a state in which the wire clamp is mounted.

In the figure: 1-convex edge, 2-fastener, 3-bottom groove, 4-separate basin, 5-location convex edge, 6-through wires hole, 7-nut seat, 8-fastening nail, 9-lower wire clip groove, 11-top groove, 12-top cover, 13-inner chamber, 14-bottom, 15-bolt hole, 16-spacing piece, 17-spacing piece groove, 18-the clamp groove of going up the standard grade.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples, and it is to be understood that the described examples are only some of the examples and are not all examples of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, the positional relationships indicated by the terms "upper", "lower", "vertical", "horizontal", "inner" or "outer" and the like are positional or positional relationships based on the application state or the drawings, and are only for convenience of description of the present invention and simplification of description, and the names of the components may be regarded as a specific name for differentiation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; they may be directly connected to each other or indirectly connected to each other through an intermediate medium, or connected to each other through an internal element. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

As shown in fig. 1 and 2, the present invention provides an embodiment: the prefabricated wire clamp waterproof insulation box is a relatively closed box body and is provided with a top cover 12 and a bottom cover 14 which are made of insulation materials, the top cover 12 and the bottom cover 14 are connected in a surrounding mode through fastening nails 8, a top cover groove 11 and a bottom cover groove 3 are respectively arranged in the top cover 12 and the bottom cover 14, an inner cavity 13 is formed by the top cover groove 11 and the bottom cover groove 3 in a surrounding mode, a wire clamp 2 is arranged in the inner cavity 13, and the wire clamp 2 is surrounded by insulation gel in the box body. The edges of the top cover groove 11 and the bottom cover groove 3 are provided with a positioning convex edge 5 and a water-resisting groove 4, so that the water-resisting and waterproof effects are enhanced. The opposite two sides of the box body are respectively provided with a pair of threading holes 6, the threading holes 6 on the opposite sides are used for penetrating cables to be connected and inserting a pair of wiring ends of the wire clamp, the cables on the two sides are connected into a continuous conductive conductor through the wire clamp 2, and the two pairs of threading holes are used for connecting two pairs of cables to be connected and become two independent conductive conductors after connection. The connecting ends of the wire clamp and the cable are wrapped by the insulating gel in the box body, so that the whole body plays a role in insulation and water resistance.

The middle part of bottom 14 is equipped with down the double-layered groove 9, and down the double-layered groove 9 is made by box body insulating material, can form by the pouring of fastener mould, down the double-layered groove 9 just in time can imbed the lower part of fastener 2 makes in fastener 2 can install when leaving the factory imbeds down the double-layered groove 9, keeps the stable state of fastener to be difficult for appearing rocking relatively or rotating after the embedding, down the double-layered groove 9 with minimum interval between the lower part of fastener 2 is not more than 0.5mm, and minimum interval should be the contact state usually. And the center of the wiring end of the wire clamp 2 is opposite to the threading hole 6, and a cable to be connected can directly and linearly extend into the wiring end of the wire clamp from the outside through the threading hole 6. Thus, the wire clamp 2 and the bottom cover 14 of the box body are relatively connected into a whole, and the wire clamp 2 is not required to be held by hands respectively during high-altitude installation, so that an operator holds the bottom cover 14 of the box body and controls the wire clamp 2, or holds the wire clamp 2 and controls the bottom cover 14 at the same time. Because the lower wire clamping groove 9 increases the local thickness of the bottom cover, the overall strength of the bottom cover is also enhanced, meanwhile, the space in the box body is reduced, and the filling amount of the insulating gel is reduced.

An upper wire clamp groove 18 is formed in the middle of the top cover 12, the upper wire clamp groove 18 is made of box body insulating materials and can be formed by casting a wire clamp die, and the upper portion of the wire clamp 2 is embedded into the upper wire clamp groove 18. When the cable clamp is delivered from a factory, the cable clamp and the bottom cover 14 of the box body are firstly installed, a gap can be reserved between the top cover 12 and the cable clamp 2, the minimum distance between the upper cable clamp groove 18 and the upper part of the cable clamp 2 is not more than 1mm, and the upper cable clamp groove 18 is provided with a nut, so that the nut can still be embedded into the upper cable clamp groove 18 in a stable state at each angle. Because the upper wire clamping groove 18 increases the local thickness of the top cover, the overall strength of the top cover is also enhanced, the space in the box body is reduced, and the filling amount of the insulating gel is reduced.

The through wires hole 6 is in corresponding by top cap 12 and bottom 14 the semicircle amalgamation that the wiring end side position of fastener 2 set up constitutes, forms by the coaxial amalgamation of the cylindrical semicircle orifice of top cap 12 and the cylindrical semicircle orifice of bottom 14 promptly, the inside wall perpendicular to through wires hole's of through wires hole 6 axial is equipped with the spacer groove 17 that is used for imbedding spacer 16, just in time can imbed spacer 16 in the spacer groove 17. The spacer 16 is used to close the threading holes and also to thread the ends of the cables to be wired. The isolation sheet 16 is formed by splicing two semicircles, one semicircular isolation sheet 16 is embedded into the spacer groove 17 of the top cover 12, the other semicircular isolation sheet 16 is embedded into the spacer groove 17 of the bottom cover 14, the two isolation sheets 16 are positioned in the same vertical plane, and the parts in the threading holes are spliced into a circle.

The isolation sheet 16 can be made of plastic or rubber, and in order to ensure the blocking effect of the isolation sheet 16, the thickness of the isolation sheet 16 is set to be 0.5-1.5 mm.

When in use, the wire box is filled with the insulating gel in advance. The top cover 12 and the bottom cover 14 can be separated, a pair of cable terminals coming and going are respectively inserted into the cable terminals of the cable clamp from the outside of the threading hole 6, the torque nut is screwed on the upper part of the cable clamp until the torque nut is screwed off, the puncture needle of the cable clamp can penetrate through the insulating sheath of the cable and press the conductor part of the cable, then the top cover 12 is closed, and the bolt is screwed down.

Finally, it should be noted that: the above description is only the preferred embodiment of the present invention, and the embodiments may be used in a cross way, and not for limiting the present invention, although the present invention is described in detail with reference to the foregoing embodiments, for those skilled in the art, it is still possible to modify the technical solutions described in the foregoing embodiments, or to replace part of the technical features of the embodiments equally, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a prefabricated formula fastener waterproof insulation box, is equipped with and surrounds the box body of being connected, built-in fastener (2) through binding nail (8) by top cap (12) and bottom (14), the relative both sides of box body respectively are equipped with a pair of through wires hole (6), its characterized in that: the middle part of bottom (14) is equipped with down clamp groove (9), down clamp groove (9) just in time can imbed the lower part of fastener (2) to make the wiring end center of fastener (2) just right through wires hole (6).

2. The waterproof insulating box of prefabricated formula fastener of claim 1, characterized in that: an upper wire clamp groove (18) is formed in the middle of the top cover (12), and the upper portion of the wire clamp (2) is embedded into the upper wire clamp groove (18).

3. The waterproof insulating box of prefabricated formula fastener of claim 1, characterized in that: the threading hole (6) is formed by splicing a top cover (12) and a bottom cover (14) at a semicircular arc arranged at the corresponding side position, and a spacer groove (17) used for embedding a spacer (16) is arranged on the inner side wall of the threading hole (6).

4. The waterproof insulating box of prefabricated formula fastener of claim 2, characterized in that: the minimum distance between the upper wire clamp groove (18) and the upper part of the wire clamp (2) is not more than 1 mm.

5. The waterproof insulating box of prefabricated formula fastener of claim 1, characterized in that: the minimum distance between the lower wire clamp groove (9) and the lower part of the wire clamp (2) is not more than 0.5 mm.

6. The waterproof insulating box of prefabricated formula fastener of claim 3, characterized in that: the thickness of the isolation sheet (16) is 0.5-1.5 mm.