CN206301963U - A parallel trench wiring tube - Google Patents

Abstract

The utility model discloses a kind of and ditch wire barrel, it is related to electric wire connecting junction technical field.The utility model includes sleeve pipe, fastening bolt and aluminium hydraulic pressed connecting pipe, and sleeve outer wall is provided with screw；When using, fastening bolt is pressed on the aluminium hydraulic pressed connecting pipe inside described sleeve pipe through the screw, there is at least two wires for peelling off partial line skin in the aluminium hydraulic pressed connecting pipe, and the wire core is contacted with the crimping inside pipe wall or the core is contacted with each other.Its shape is substantially cylindrical after the utility model installation, and the shape with wire is identical, therefore is easy to insulative water-proof to wrap up, it is adaptable to which underground line etc. needs water-proofing treatment place；And the wire that it is connected is in 16mm²‑120mm², model applied widely；Meanwhile, its simple structure is easy to make and is used；Using tightened bolt presses aluminium hydraulic pressed connecting pipe, without using excessive instrument, can effectively shorten the time of wiring, improve installation effectiveness.

Description

A parallel trench wiring tube

technical field

The utility model relates to the technical field of connectors.

Background technique

Power supply companies mainly use copper wires or aluminum wires to transmit electric energy to thousands of households, among which aluminum wires are mostly used because they are cheap and easy to maintain. Wire connection is the most important basic skill of maintenance electricians. It is a skill often used in line installation and maintenance. The basic requirements for wire connection are as follows: good electrical contact, that is, small contact resistance; sufficient mechanical strength; connection The insulation strength at the place is not lower than the insulation strength of the wire itself. Because the aluminum wire is easy to oxidize and the resistivity of the oxide film is high, the connection of single-strand wires and the connection of multi-strand wires have high technical requirements. The traditional wiring method is to braid two or more wires together when they are connected. , has reached a certain connection strength, this method is time-consuming and laborious. Generally, it is difficult for electricians to complete the wiring according to all the wiring requirements. When wiring, they generally follow the principle of "overpowering" and do things hastily. However, this will make the joints prone to heat and oxidation during use, resulting in poor contact of the line. Another common method is to use the crimping tube crimping method for wiring, that is, use crimping pliers to flatten the two ends of a crimping tube. The crimped wire is broken, destroying the cross-sectional area of the wire, and it is inconvenient to carry the crimping pliers when used under heavy load, which brings great difficulty to the electrician. There is also a parallel trench clamp (a parallel trench clamp is used for the connection of small and medium-sized aluminum stranded wires or steel-cored aluminum stranded wires and steel strands of overhead lightning conductors at positions that do not bear tension, and is also used for non-linear towers. Jumper connection), the appearance is beautiful, but it needs to be installed according to the actual conditions. Because of its special shape, it is not easy to do insulation treatment in some working environments (such as after the buried wire is broken, use a special-shaped parallel groove clamp to connect it) Insulation is difficult to deal with, and waterproof insulation needs to be considered, etc.), which makes a large part of the place unusable, which makes the special-shaped parallel trench clamps have certain limitations.

Utility model content

The utility model provides a parallel trench wiring tube, which has the characteristics of convenient use, good connection strength and easy insulation treatment.

The utility model provides a parallel trench wiring tube, which includes a sleeve, a fastening bolt and a crimping tube, and the outer wall of the sleeve is provided with a screw hole; when in use, the fastening bolt passes through the screw hole and is pressed on the Located on the crimping tube inside the casing, there are at least two wires with part of the sheath stripped inside the crimping tube, and the wire cores are in contact with the inner wall of the crimping tube or the wire cores are in contact with each other.

Further, in the aforementioned parallel trench wiring tube, the crimping tube is a soft tube with good electrical conductivity.

Further, in the aforementioned parallel trench wiring tube, the crimping tube is an aluminum tube.

Further, in the aforementioned parallel trench wiring tube, the crimping tube is a section of tube whose inner diameter is larger than the outer diameter of the wire.

Further, in the aforementioned parallel-groove wiring tube, the crimping tube is two sections of half tubes cut from the axial direction.

Further, in the aforementioned parallel-groove wiring tube, grooves for receiving nuts of fastening bolts are also provided at the parts where screw holes are provided on the outer wall of the casing.

Further, in the aforementioned parallel trench wiring tube, the outer wall of the crimping tube is provided with an insulating layer.

Further, in the above-mentioned parallel-groove wiring tube, three screw holes are provided on the outer wall of the sleeve with the connecting line in the same direction as the axis of the sleeve.

Further, in the aforementioned parallel trench conduit, the fastening bolts are T-shaped bolts.

Further, in the aforementioned parallel trench wiring tube, the sleeve is a U-shaped cross-section sleeve, and the screw hole is on its side.

The beneficial effects produced by the technical solution described in the utility model are:

The utility model provides a parallel trench wiring tube which is cylindrical in shape after installation, which is the same as the shape of the wire, so it is convenient for insulation and waterproof packaging, and is suitable for places where waterproof treatment is required such as buried wires; and the wires it connects are in 16mm ² -120mm ² , with a wide range of applications; at the same time, its structure is simple, easy to manufacture and use; fastening bolts are used to compress the crimping tube, without using too many tools, which can effectively shorten the wiring time and improve installation efficiency.

Description of drawings

Fig. 1 is the use schematic diagram of a kind of embodiment of the utility model;

Fig. 2 is a schematic view of another embodiment of the present invention.

The corresponding relationship of the symbols in the above drawings is:

10 casing; 11 screw hole; 12 groove; 20 fastening bolt; 30 crimping tube; 41 core; 42 sheath.

detailed description

Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail.

With reference to accompanying drawing 1 and accompanying drawing 2, a kind of parallel ditch junction pipe provided by the utility model comprises casing 10, fastening bolt 20 and crimping pipe 30, and the outer wall of casing 10 is provided with screw hole 11; The fastening bolt 20 passes through the screw hole 11 and presses on the crimping tube 30 inside the casing 10. There are at least two wires in the crimping tube 30 with part of the wire sheath 42 stripped off. The wire core 41 is in contact with the inner wall of the crimping tube 30 or the wire The cores 41 are in contact with each other. Generally, after the installation is completed, only the nuts of the fastening bolts 20 are exposed outside the casing 10 . Simply put, the function of the crimping tube 30 is to connect the wires, and the cooperation between the sleeve 10 and the fastening bolt 20 is to generate a downward pressing force for the crimping tube 30 to fix the wires.

How to use: When installing, strip off the sheath 42 of the ends of two or more wires to be connected to expose part of the wire core 41, put the sleeve 10 on a part of the wires, and put all the stripped ends into the crimp. In the connecting pipe 30 , the sleeve 10 is put on the crimping pipe 30 and the fastening bolt 20 is tightened. If insulation treatment is required, it is only necessary to bind or sleeve an insulating tape or an insulating sleeve on the outside of the sleeve 10 . If there are too many wires that need to be connected together, multiple crimping tubes 30 can be used, and only a larger size sleeve 10 and fastening bolt 20 can be selected.

Furthermore, in the aforementioned parallel trench wiring tube, the crimping tube 30 is a soft tube with good electrical conductivity. Soft means that it can be deformed by fastening bolts to achieve a better wiring effect.

Further, in the aforementioned parallel trench wiring tube, the crimping tube 30 is an aluminum tube.

Further, in the aforementioned parallel trench wiring tube, the crimping tube 30 is a section of tube whose inner diameter is larger than the outer diameter of the wire. It is actually similar to a common wiring tube, and the wire can be fixed after the bolt 20 is compressed and deformed.

Further, in the aforementioned parallel-groove wiring tube, the crimping tube 30 is two sections of half tubes cut from the axial direction. The diameters of the two half-pipes can be the same or different. If the diameters are different, the difference in diameter is preferably such that the upper half of the tube can be completely embedded in the lower half of the tube.

Further, in the above-mentioned parallel-groove wiring tube, the portion where the screw hole 11 is provided on the outer wall of the sleeve 10 is also provided with a groove 12 for receiving the nut of the fastening bolt 20 . After the nut of the fastening bolt 20 is installed, it can be completely embedded in the groove 12, so that the nut and the sleeve 10 are on the same plane, which is conducive to insulation treatment

Furthermore, in the aforementioned parallel trench wiring tube, the outer wall of the crimping tube 30 is provided with an insulating layer. In this way, the problem of insulation treatment can be solved, and it is not necessary to arrange an insulation layer on the outside of the bushing 10 .

Further, in the aforementioned parallel-groove wiring tube, three screw holes 11 are provided on the outer wall of the sleeve 10 with lines perpendicular to the axial direction of the sleeve 10 .

Further, in the aforementioned parallel trench conduit, the fastening bolts 20 are T-shaped bolts. T-shaped bolts can be used to directly tighten the fastening bolts 20 by hand without using other tools, which is very convenient to use.

Further, in the aforementioned parallel trench wiring tube, the sleeve 10 is a sleeve with a U-shaped cross-section, and the side of the screw hole. In this way, the bushing 10 can not be threaded on the wire, which solves the problem of forgetting to put the bushing 10 first in actual operation.

Specifically, with reference to accompanying drawings 1 and 2, the utility model selects specific shapes, dimensions and specific usage methods of the sleeve 10, the crimping tube 30 and the fastening bolt 20 for introduction. Sleeve 10 has a length of 20 cm and a diameter of 12 cm, with 3 holes above and internal threads on the holes; crimping tube 30 is an aluminum tube with two grooves, and the upper and lower aluminum tubes have different diameters. The diameter is 16mm, the diameter of the lower aluminum tube is 100mm, and the length of the parallel trench wiring tube is 20cm, and there are several transverse lines, which have the effect of ensuring that the wire does not loosen and come out; the fastening bolt 20 is equipped with a spring pad to prevent loosening during operation. The diameter is 48mm, and the length is about 3-5mm. Prepare 2-3 types. The purpose is to connect wires with different diameters. After the fastening bolt 20 is installed, the nut needs to be exposed outside, and the screw needs to be completely pressed into the aluminum alloy connecting pipe. This facilitates insulation measures such as waterproof wrapping. Its specific use method: at the place where the wire is broken or a T-connection is required, first cut off the insulation layer of the wire. You can use wire strippers or wire cutters to strip the insulation layer of the wire, or you can use an electrician’s knife to cut the insulation layer of the plastic hard wire. Both sides of the wire are bare. Leak out the wires by 10cm each (i.e. half the length of the sleeve 10), then insert the sleeve 10 from one end of the broken wire, and then put the wires to be connected into the crimping tube 30. Before the wires are connected, in order to increase their mechanical strength , to improve the conductivity, some conductive paste should be coated in the crimping tube 30 . Move the sleeve 10 to the outside of the parallel trench wiring tube and wrap the crimping tube 30 (the diameter of the sleeve 10 is 3-6mm larger than that of the crimping tube 30, which is easy to penetrate), then install the fastening bolt 20 and press it tightly with a sleeve wrench , until the fastening bolts 20 are tightened to the end, the screw rods all enter the aluminum alloy wiring tube, and the nuts are close to the outside of the aluminum alloy wiring tube. The three fastening bolts 20 will press the force on the crimping tube 30, and the wires to be connected will be firmly pressed under the action of the crimping tube 30, and the contact area of the wires will not be lower than that of the original wires , installed firmly. The current will be conducted from the crimping tube 30 and the bushing 10. After use, it will be wrapped with insulating tape and waterproof tape, which is beautiful and practical. It is used in places where waterproof treatment is required, such as buried wires, and the wires it connects are in the range of 16mm ² -120mm ² , with a wide range of applications.

In this paper, specific examples are used to illustrate the principle and implementation of the present utility model, and the descriptions of the above embodiments are only used to help understand the method and core idea of the present utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and modifications can also be made to the utility model, and these improvements and modifications also fall into the protection of the claims of the utility model. within range.

Claims (10)

1. a kind of and ditch wire barrel, it is characterised in that including sleeve pipe（10）, fastening bolt（20）And aluminium hydraulic pressed connecting pipe（30）, sleeve pipe （10）Outer wall is provided with screw（11）；When using, fastening bolt（20）Through the screw（11）It is pressed in positioned at described sleeve pipe （10）The internal aluminium hydraulic pressed connecting pipe（30）On, the aluminium hydraulic pressed connecting pipe（30）Inside peel off partial line skin（42）At least two wires, The wire core（41）With the aluminium hydraulic pressed connecting pipe（30）Inwall is contacted or the core（41）Contact with each other.

2. according to claim 1 and ditch wire barrel, it is characterised in that the aluminium hydraulic pressed connecting pipe（30）For electric conductivity is good Soft pipe.

3. according to claim 2 and ditch wire barrel, it is characterised in that the aluminium hydraulic pressed connecting pipe（30）It is aluminum pipe.

4. according to claim 2 and ditch wire barrel, it is characterised in that the aluminium hydraulic pressed connecting pipe（30）Led for one section of internal diameter is more than The pipe of line external diameter.

5. according to claim 1 and ditch wire barrel, it is characterised in that the aluminium hydraulic pressed connecting pipe（30）It is two sections from axis direction The semicanal cut open.

6. according to claim 1 and ditch wire barrel, it is characterised in that described sleeve pipe（10）Outer wall is provided with screw（11） Position be additionally provided with for accommodating fastening bolt（20）Nut groove（12）.

7. according to claim 1 and ditch wire barrel, it is characterised in that the aluminium hydraulic pressed connecting pipe（30）Outer wall is provided with insulating barrier.

8. according to claim 1 and ditch wire barrel, it is characterised in that described sleeve pipe（10）Outer wall is provided with three lines With described sleeve pipe（10）Axis direction identical screw（11）.

9. according to claim 1 and ditch wire barrel, it is characterised in that the fastening bolt（20）It is tommyhead bolt.

10. according to claim 1 and ditch wire barrel, it is characterised in that described sleeve pipe（10）It is U-shaped section sleeve pipe, institute State screw（11）Its side.