CN201570834U - Lightning protection disconnect metal clamp for aerial conductor - Google Patents

Abstract

The utility model discloses a lightning protection disconnect metal clamp for an aerial conductor, which comprises a baseplate, a discharge piece, a lower wire clamping plate, an upper wire clamping plate, a left bolt, a right bolt, a torsion nut, a left locating sleeve and a right locating sleeve. The metal clamp is characterized in that a row of clamping thorns between the lower wire clamping plate and the upper wire clamping plate and two rows of clamping thorns on the left side and the right side are in staggered distribution. Therefore, the lightning protection disconnect metal clamp has the advantages of reasonable clamping thorns layout, normal and reliable electric connection with the aerial conductor, etc.

Description

The anti-lightning strike broken string metal fixture of aerial condutor

Technical field

The utility model relates to the anti-lightning strike broken string metal fixture of a kind of aerial condutor, belongs to the electric power protection facility technology.

Background technology

The anti-lightning strike broken string metal fixture of aerial condutor is to be used for preventing that aerial condutor is by the electric power of lightning-caused breaking conveying protection facility.

Described metal fixture is by the clamp piece of involutory configuration up and down, be connected with the discharge part form.Under working condition, be that aerial condutor is clamped in up and down among the involutory clamp piece, and go deep into (between the line gap of leader cable) in the lead by the piercing of clamp piece, make whole described anchor clamps be electrically connected with lead.When the moment of being struck by lightning, when the aerial condutor load increased suddenly, electric discharge phenomena took place in discharge part and the corresponding discharge electrode that is located on the ground connection coil holder mutually, and alleviated the high load capacity (high voltage) of aerial condutor, thereby effectively avoided the generation of aerial condutor catastrophic failure.

But carry in the operation practice at electric power; find existing described metal fixture; because its involutory up and down set piercing of clamp piece is arranged unreasonable; so that the spacing between the adjacent piercing is very little; whenever by the involutory up and down clamp piece of torsion nut screwing clamping the time, though usually can taking place, twisted into two parts on the torsion nut, piercing can't be goed deep in the lead; it is not in place to cause described anchor clamps to be electrically connected with aerial condutor, and does not have the purpose of anti-lightning strike broken string.Press in the industry for this reason existing described anchor clamps are improved.

Summary of the invention

The purpose of this utility model is to provide a kind of piercing connection and reasonable arrangement of clamp piece up and down, is electrically connected the anti-lightning strike broken string metal fixture of aerial condutor of normal reliable with aerial condutor, effectively to overcome the deficiency of prior art.

The purpose of this utility model, be by the set piercing reasonable Arrangement of clamp piece, suitably strengthen the spacing between the adjacent piercing so that piercing go deep into aerial condutor especially in the aerial condutor of outsourcing insulation (about 1～2mm), realize the purpose of this utility model.

The utility model realizes that the technical scheme of its purpose is:

The anti-lightning strike broken string metal fixture of a kind of aerial condutor comprises base plate, discharge part, following clamp, last clamp, left and right bolt, torsion nut and left and right positioning sleeve; The discharge part is located between base plate and the following clamp; Last clamp and following clamp are and sting sharp positioned opposite up and down; The screw rod of left and right bolt passes base plate, following clamp and 2 set separately symmetrical through holes of last clamp three successively, be connected with stubborn the closing of torsion nut, and make base plate, following clamp and last clamp connect to one, and order discharge part by the obvolvent fixation between base plate and following clamp, left and right positioning sleeve, be enclosed within respectively on the screw rod of left and right bolt, and down between clamp and the last clamp involutory surface; The axial length of described left and right positioning sleeve, greater than the distance between the involutory surface of the piercing thorn point of following clamp and following clamp, the piercing that adds clamp is stung between the involutory surface of sharp and last clamp apart from sum; All there is insulating material spare the end face and the left and right sides of both wings at the discharge part; Base plate, down clamp, on around clamp and the torsion nut, be provided with insulation protective hood, its innovative point is: described set piercing and the set piercing of last clamp of clamp down respectively has several, and described several piercings are divided into three row layouts; The piercing numbers that wherein are positioned at left and right two row in the outside equate, and symmetric arrangement separately vertically, and the piercing number of 1 row lack 1 than the piercing number of left column or right row in the middle of being positioned at, and each piercing respectively be positioned at the piercings that the outside left and right two is listed as and be staggeredly arranged.

Can understand by above given technical scheme, because the included piercing of the utility model, being dislocation mutually arranges, so that the spacing that is kept between the adjacent piercing is moderate, enter in the aerial condutor and be convenient to piercing, thereby realized that piercing is connected with the normal electrical of aerial condutor, has realized the purpose of this utility model.

Described insulation protective hood by the set lobed contraction bands in its left and right sides, with the fastening of the through hole that is located at described contraction bands opposite, and fasten to link with aerial condutor.Because the existence of this technical scheme has overcome prior art and has adopted rope in addition, makes insulation protective hood tie up with aerial condutor and is connected, the many troubles that caused.

After technique scheme was implemented, what the utility model had was rational in infrastructure, was electrically connected characteristics such as reliable with aerial condutor, was conspicuous.

Description of drawings

Fig. 1 is the front view of a kind of embodiment of the utility model;

Fig. 2 is the left view of Fig. 1;

Fig. 3 is the vertical view of Fig. 1;

Fig. 4 is the A-A profile of Fig. 3; There is shown the structure that insulating material spare 8 and discharge part 2 are fitted;

Fig. 5 is the utility model operating state reference diagram (insulation protective hood 9 major parts is deleted); Double dot dash line shown in the figure 13 is an aerial condutor;

Fig. 6 is the B-B profile of Fig. 5; Double dot dash line shown in the figure 13 is an aerial condutor;

Fig. 7 is a front view of going up clamp 4 shown in Figure 1;

Fig. 8 is the upward view of Fig. 7;

Fig. 9 is Fig. 7, the schematic perspective view of going up clamp 4 shown in Figure 8;

Figure 10 is the front view of clamp 3 down shown in Figure 1; The portion of C shown in the figure is the recessed disc with discharge part 2 obvolvents;

Figure 11 is the vertical view of Figure 10;

Figure 12 is Figure 10, the schematic perspective view of clamp 3 down shown in Figure 11;

Figure 13 is the schematic perspective view of base plate 1 shown in Figure 1; The portion of D shown in the figure is the recessed disc with discharge part 2 obvolvents;

Figure 14 is the schematic perspective view that Figure 13 looks up state; Shown in the figure 11, be the interior hexagonal counterbore suitable with the hexagon prism of left and right bolt 5;

Figure 15 is the schematic perspective view of discharge part 2 shown in Figure 1; The portion of E shown in the figure is and the C portion of the D portion of base plate 1 and following clamp 3 cylindrical section of obvolvent mutually;

Figure 16 is the schematic perspective view of insulation protective hood 9 shown in Figure 6;

Figure 17 is the operating state reference diagram that the utility model and the discharge electrode on being connected lead frame are tackled layout mutually; 12 is discharge electrode shown in the figure, and 13 is aerial condutor.

Embodiment

Below contrast accompanying drawing, by the description of embodiment, the utility model is described in further detail.

A kind of typical embodiment is asked for an interview accompanying drawing 1～16.

The anti-lightning strike broken string metal fixture of a kind of aerial condutor comprises base plate 1, discharge part 2, following clamp 3, last clamp 4, left and right bolt 5, torsion nut 6 and left and right location plastic sheath 7; Discharge part 2 is located between base plate 1 and the following clamp 3; Both are last clamp 4 and following clamp 3 and sting sharp positioned opposite up and down; The screw rod of left and right bolt 5 passes base plate 1, following clamp 3 and 2 set separately symmetrical through holes of last clamp 4 threes successively, be connected with torsion nut 6 stubborn closing, and make base plate 1, following clamp 3 and last clamp 4 connect to one, and order discharge part 2 by the obvolvent fixation between base plate 1 and following clamp 3, left and right positioning sleeve 7, be enclosed within respectively on the screw rod of left and right bolt 5, and down between clamp 3 and last clamp 4 involutory surfaces; The axial length of described left and right positioning sleeve 7, greater than the distance between the involutory surface 3-2 of the piercing 3-1 thorn point of following clamp 3 and following clamp 3, the piercing 4-1 that adds clamp 4 stings between the involutory surface 4-2 of sharp and last clamp 4 apart from sum; All there is rubber insulation material spare 8 the end face and the left and right sides of both wings 2-1 at discharge part 2; Base plate 1, down clamp 3, on around clamp 4 and the torsion nut 6, be provided with rubber-covered protective cover 9; Described clamp 3 set piercing 3-1 and last clamp 4 set piercing 4-1 down respectively have 14, and described 14 piercing 3-1,4-1 are divided into three row layouts; Wherein be positioned at the piercing 3-1 ' of two row about the outside, 4-1 ' respectively has 5, and separates symmetric arrangement vertically, and the piercing 3-1 ", 4-1 " of 1 row has 4 in the middle of being positioned at, and 4 piercing 3-1 "; " with the piercing 3-1 ' that are positioned at two row about the outside, 4-1's 4-1 ' is staggeredly arranged respectively.In other words, 4 piercing 3-1 of described centre 1 row ", 4-1 " and, be located at two adjacent 2 the piercing 3-1 ' that are listed as about the outside respectively, 4-1 ', the joining position of 2 diagonal angle lines that constituted.Described insulation protective hood 9 by the set contraction bands 9-1 with protruding 9-1-1 in its left and right sides, with the fastening of the through hole 9-2 that is located at described contraction bands 9-1 opposite, and fasten to link with aerial condutor.

Working condition of the present utility model sees also accompanying drawing 17.

The utility model first sample trial effect makes us very satisfied, has realized original intention of the present utility model.

Claims (2)

1. the anti-lightning strike broken string metal fixture of aerial condutor comprises base plate (1), discharge part (2), following clamp (3), last clamp (4), left and right bolt (5), torsion nut (6) and left and right positioning sleeve (7); Discharge part (2) is located between base plate (1) and the following clamp (3); Both are last clamp (4) and following clamp (3) and sting sharp positioned opposite up and down; The screw rod of left and right bolt (5) passes base plate (1), following clamp (3) and 2 set separately symmetrical through holes of last clamp (4) three successively, be connected with stubborn the closing of torsion nut (6), and make base plate (1), following clamp (3) and last clamp (4) connect to one, and order discharge part (2) by the obvolvent fixation between base plate (1) and following clamp (3), left and right positioning sleeve (7), be enclosed within respectively on the screw rod of left and right bolt (5), and be positioned between following clamp (3) and last clamp (4) involutory surface; The axial length of described left and right positioning sleeve (7), greater than the distance between the involutory surface (3-2) of piercing (3-1) the thorn point of following clamp (3) and following clamp (3), the piercing (4-1) that adds clamp (4) is stung between the involutory surface (4-2) of sharp and last clamp (4) apart from sum; All there is insulating material spare (8) the end face and the left and right sides of both wings (2-1) at discharge part (2); At base plate (1), time clamp (3), last clamp (4) and torsion nut (6) on every side, be provided with insulation protective hood (9), it is characterized in that: the described set piercing (3-1) of clamp (3) down, the piercing (4-1) set with last clamp (4) respectively has several, and described several piercings (3-1,4-1) are divided into three row layouts; Piercings (3-1 ', the 4-1 ') number that wherein is positioned at two row about the outside equates, and symmetric arrangement separately vertically; And the piercing of 1 row in the middle of being positioned at (3-1 ", 4-1 ") number lack 1 than the piercing number of left column or right row, and each piercing (3-1 ", 4-1 ") respectively be positioned at two piercings that are listed as about the outside (3-1 ', 4-1 ') and be staggeredly arranged.

2. the anti-lightning strike broken string metal fixture of a kind of aerial condutor according to claim 1, it is characterized in that, described insulation protective hood (9), by the set contraction bands with projection (9-1-1) (9-1) in its left and right sides, be interlocked with the through hole (9-2) that is located at described contraction bands (9-1) opposite, and fasten link with aerial condutor.

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