CN203038733U

CN203038733U - Supporting insulator

Info

Publication number: CN203038733U
Application number: CN 201220516256
Authority: CN
Inventors: 马远月; 赵艳; 宫在胜; 邹卫国; 慈学卫
Original assignee: 马远月
Priority date: 2012-09-18
Filing date: 2012-09-18
Publication date: 2013-07-03
Anticipated expiration: 2022-09-18

Abstract

The utility model provides a supporting insulator, which comprises porcelain knobs and a cross arm. The cross arm is an L-shaped folded plate. Two sides of the folded plate are provided with two circular holes respectively. The two circular holes are used to install the porcelain knobs on the cross arm through fasteners. The cross arm can be installed on a transformer cross arm through a fastener. With the adoption of the supporting insulator and an installation mode thereof, time and labour are saved, and cost of replacing the transformer cross arm is also saved. In addition, the supporting insulator of a link string overcomes faults caused by a support arm of the link string after being reformed, and ensures the stable operation of a power grid.

Description

A kind of supporting insulator

Technical field

The utility model relates to a kind of supporting insulator.

Background technology

As everyone knows, the transmission of electricity electrical network is multi-point and wide-ranging, geographical environment is relatively poor, the circuit major part is in the location, wilderness, physical features is open, and influenced by ocean climate, and annual strong wind weather is more, existing order gram string supporting insulator is easy to cause fracture or be subjected to displacement because of strong wind, thereby causes the generation of line fault.

It is porcelain load or silicon rubber insulator that the insulator that the present order gram of electrical network is gone here and there adopted more; observe discovery according to operation for many years; the mechanical strength of porcelain load a little less than; and fixed form is by 16 * 150mm bolt (seeing accompanying drawing 3a); fracture or porcelain load end shift phenomenon to the left and right easily takes place when strong wind weather, thereby causes line fault.Though and the silicon rubber synthetic insulators mechanical strength is better, because full skirt is less, creep distance is shorter, and insulator end and the fixed head close together that makes gram porcelain body middle part when weather humidity is big, electric discharge phenomena take place easily.Therefore the fault that causes because of zero gram string support load in recent years happens occasionally, and becomes a hidden danger that influences power network safety operation.

Therefore, need a kind of improved order gram string supporting insulator, in order to overcome the above-mentioned problems in the prior art, promote the electrical network 6KV circuit quality of economic operation.

The utility model content

The technical problems to be solved in the utility model is: a kind of improved supporting insulator is provided, supports the fault that is caused to reduce by order gram string, guarantee power network safety operation.

For addressing the above problem, the technical solution of the utility model is:

A kind of supporting insulator, it comprises porcelain knob and cross-arm, and wherein cross-arm is L type flap, and the dual-side of described flap is respectively arranged with two circular ports, described two circular ports are used for porcelain knob is installed in described cross-arm by securing member, and described cross-arm can be installed on the transformer cross-arm by securing member.

Preferably, the length and width height of described cross-arm for L type flap is respectively 100mm, 50mm and 50mm, and the diameter of described circular port is 16.5mm, and described circular port is 20mm apart from the distance of the side of flap.

Description of drawings

Fig. 1 is the cross-arm structural representation of supporting insulator of the present utility model;

Fig. 2 a is the installation front schematic view of supporting insulator of the present utility model;

Fig. 2 b is the installation side schematic view of supporting insulator of the present utility model;

Fig. 3 a is porcelain load of the prior art;

Fig. 3 b is of the present utility model through improved porcelain knob.

Reference numeral:

Among the figure: 1, cross-arm 2, porcelain knob 3, transformer cross-arm

Embodiment

Be described in detail below in conjunction with accompanying drawing and the utility model of embodiment.

After field observation, investigating, consider that the mechanical strength of porcelain knob is bigger, and creep distance is long, length is moderate, therefore preferably the upward existing porcelain load of circuit order gram string and silicon rubber insulator all is replaced by the PS-15 porcelain knob.But if change porcelain knob, the transformer cross-arm on the former order gram string must be changed, not only waste time and energy, and cost be also higher.

For this reason, at first design cross-arm 1, after former porcelain load or silicon rubber insulator are pulled down, earlier cross-arm 1 is fixed, the PS-15 porcelain knob is installed on the cross-arm 1 gets final product again.Referring to Fig. 1, cross-arm 1 is a L type flap, its length and width height is made as ABC respectively, being chosen as long A adaptively according to the size of porcelain knob is 100mm, wide B and high C are 50mm, be respectively equipped with two circular ports on two flangings of this external cross-arm, circular hole is 20mm apart from the distance B of a side, and the diameter E of circular port is 16.5mm.

Fig. 2 a and Fig. 2 b are respectively front schematic view and the side schematic view after insulator porcelain knob of the present utility model is installed, and Fig. 3 b is of the present utility model through improved porcelain knob.Porcelain knob 2 is installed on the cross-arm 1 among the figure, cross-arm 1 is installed on the transformer cross-arm 3 by bolt again, so both can save time and manpower, can save the cost of changing the transformer cross-arm again.And through many using and observing half a year, support load through improved order gram string, a cause does not take place so far support the fault that load causes.

The above; it only is embodiment of the present utility model; but protection range of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; can expect easily changing or replacing, all should be encompassed within the protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion by described protection range with claim.

Claims

1. supporting insulator, it comprises porcelain knob and cross-arm, it is characterized in that: described cross-arm is L type flap, the dual-side of described flap is respectively arranged with two circular ports, described two circular ports are used for porcelain knob is installed in described cross-arm by securing member, and described cross-arm is installed on the transformer cross-arm by securing member.

2. supporting insulator according to claim 1 is characterized in that: the length and width height of described cross-arm for L type flap is respectively 100mm, 50mm and 50mm, and the diameter of described circular port is 16.5mm, and described circular port is 20mm apart from the distance of the side of flap.