CN2735619Y

CN2735619Y - Bus line cramp

Info

Publication number: CN2735619Y
Application number: CN 200420072063
Authority: CN
Inventors: 曾开存
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-07-21
Filing date: 2004-07-21
Publication date: 2005-10-19
Anticipated expiration: 2014-07-21

Abstract

Disclosed is a bus line clamp. Through holes are arranged on the outermost slot walls of the upper clamp block and the lower clamp block. Each through hole is provided with a bolt. A screw sleeve is arranged between the bolt of the upper clamp block and the bolt of the lower clamp block. The bolt of the upper clamp block and the bolt of the lower clamp are respectively screwed in the both ends of the corresponding screw sleeve, the outermost slot wall of the upper clamp block and the corresponding slot wall of the lower clamp block are fixed together, and therefore, a circular block structure is formed by connecting the periphery of the bus line clamp from bottom to end. The outermost slot wall of the bus line clamp which can bear large impact force is difficult to break. In case that one slot wall is broken, the electriferous metal bus line also can be prevented from bouncing out the slot.

Description

Bus line cramp

Technical field

The utility model belongs to a kind of power equipment matching component, is specifically related to a kind of Bus line cramp that is used for power equipments such as switchgear assembly, control panel.

Background technology

Have structure such as Fig. 1, Fig. 2, shown in Figure 3 of Bus line cramp now, comprise the last fixture block 1 and the following fixture block 2 of paired cooperation, clamping in opposite directions, last fixture block and following fixture block are respectively equipped with the groove corresponding with shape of generatrix 11, and the both sides of groove are cell walls 12; Between last fixture block and following fixture block, also be provided with and separate back-up block 3, separate back-up block and be arranged between the bus 4 of different poles, thereby the metallic bus bar 4 of different poles is separated.In recent years, continuous increase along with electricity consumption current strength, the deficiency of existing Bus line cramp displays gradually, this be because, high frequency can take place owing to the effect of electric current and laterally tremble in metallic bus bar when work, thereby cell wall is produced lateral impact forces, when direction (shown in V arrow among Fig. 3) swing laterally of the metallic bus bar of outermost side, can be to the cell wall of outermost side and the outside stretching torsion (shown in F arrow among Fig. 3) of position generation on every side thereof, because the cell wall of outermost side is partial to an a corner, few with the connection relationship at position on every side, lack adjacent regions and limit its outside distortion, after this position is subjected to outside impulsive force, can produce distortion by a relatively large margin, add the tension of non-metal insulating material, torsional property is poor, rupture along near certain plane of weakness the phantom line segments ab among Fig. 3 easily, in case this position fracture, the cell wall of outermost side will be shifted, come off, then the live metal bus 4 of outermost side will lose constraint and jump out groove, and its consequence is hardly imaginable.Along with economy, industrial expansion in recent years, the continuous increase of electricity consumption current strength, the impulsive force that cell wall need bear is increasing, and above-mentioned danger is also increasing, and the problems referred to above more and more press for solution.

Summary of the invention

The purpose of this utility model is to overcome above-mentioned shortcoming and a kind of Bus line cramp is provided, and the cell wall of its outermost side can bear greater impact power, easy fracture not, and jump out groove just in case wherein also can prevent charged metallic bus bar after the place cell wall fracture.

For realizing above purpose, Bus line cramp of the present utility model comprises the last fixture block and the following fixture block of paired cooperation, last fixture block and following fixture block are provided with groove and cell wall, it is characterized in that, the cell wall of last fixture block and the outermost side of following fixture block is respectively equipped with vertical through hole, be provided with bolt in each through hole, be provided with screw shell between the bolt of the bolt of last fixture block and following fixture block, the bolt of the bolt of last fixture block and following fixture block is tightened on respectively in the both ends of corresponding screw shell, to go up the cell wall of the outermost side of fixture block and the cell wall of following fixture block position correspondence thus and be fixedly linked up, the periphery of whole Bus line cramp forms end to end annular frame structure.

Realize above-mentioned purpose preferably scheme be: the screw shell periphery also is arranged with insulating case, and insulating case is clamped between the cell wall of the cell wall of fixture block and following fixture block.

Realize that the better scheme of above-mentioned purpose is: between last fixture block and following fixture block, also be provided with the separation back-up block, separate back-up block and be arranged between the out of phase bus position.

The utlity model has following advantage and effect:

1, because the peripheral looping frame structure of whole Bus line cramp, front and back link to each other, integral rigidity strengthens, each position is supported mutually with opposing external force, check and balance to reduce distortion, promptly Bian Xing degree can be subjected to restriction, the constraint of adjacent regions, and the ability that the cell wall of outermost side is withstood shocks strengthens greatly, the degree that this position is subjected to deforming when bus impacts reduces greatly, and the danger of fracture reduces greatly.

Even 2 under the situation of contingency short circuit current, because the instantaneous increasing of current strength, last fixture block (or following fixture block) the wherein outermost cell wall in a place ruptures, this place's cell wall also still fixedly is linked as with another fixture block by the bolt thread tube-in-tube structure, thereby still can not be shifted, come off, so this place's cell wall still can be clamped metallic bus bar, prevent that metallic bus bar from jumping out groove.From the angle of probability, the probability that last fixture block and the outermost cell wall of following fixture block rupture simultaneously is very little even is zero that therefore, metallic bus bar was jumped out the abominable accident of groove when Bus line cramp of the present utility model can guarantee to avoid short circuit current.

3, Bus line cramp of the present utility model is simple in structure, and volume is small and exquisite, and is easy to install and use, can be adapted to the metallic bus bar of all size.

4, owing to adopt the bolt thread tube-in-tube structure, can regulate bolt and enter the degree of depth of screw shell to adapt to the bus of differing heights.

5, Bus line cramp of the present utility model can be used in combination, with the bus of clamping phase three-wire three or three-phase and four-line.

Description of drawings

Fig. 1 is the shape and structure schematic diagram of traditional Bus line cramp.

Fig. 2 is a shape schematic diagram of going up fixture block among Fig. 1.

Fig. 3 is the user mode schematic diagram of traditional Bus line cramp.

Fig. 4 is the structural representation of a kind of embodiment of the utility model.

Fig. 5 is a shape and structure schematic diagram of going up fixture block among Fig. 4.

Embodiment

Fig. 4, shown in Figure 5, the Bus line cramp of a kind of embodiment of the utility model is the Bus line cramp of three utmost points, each extremely can clamp two metallic bus bar 4, this Bus line cramp comprises the last fixture block 1 and the following fixture block 2 of paired cooperation, last fixture block and following fixture block are provided with groove 11 and cell wall 12, groove 11 clamping in opposite directions of last fixture block and following fixture block, be provided with two in the middle of last fixture block and the following fixture block and separate back-up block 3, separating back-up block 3 is arranged between the out of phase bus position, the cell wall of last fixture block and the outermost side of following fixture block (being left and right sides) is respectively equipped with vertical through hole 13, be provided with bolt 14 in each through hole, be provided with screw shell 15 between the bolt of the bolt of last fixture block and following fixture block, the bolt of the bolt of last fixture block and following fixture block is tightened on respectively in corresponding screw shell 15 both ends, to go up the cell wall of the outermost side of fixture block and the cell wall of following fixture block position correspondence thus and be fixedly linked up, the periphery of whole Bus line cramp forms end to end annular frame structure.The screw shell periphery also is arranged with insulating case 16, and insulating case 16 is clamped between the cell wall of the cell wall of fixture block and following fixture block.

Bus line cramp of the present utility model also can be not limited to the foregoing description for one pole Bus line cramp, two utmost point Bus line cramps, four utmost point Bus line cramps.

Bus line cramp of the present utility model can also be used in combination, and for example three utmost point Bus line cramps and the one pole Bus line cramp with the foregoing description makes up, just the bus of energy clamping four utmost points (three-phase and four-line); The perhaps Bus line cramp at two the two poles of the earth combination, bus that also can the clamping three-phase and four-line.

In present specification, so-called " laterally ", be meant the direction of the bus arrangement of different poles, shown in arrow A among Fig. 5; So-called " vertically ", be meant the direction vertical with " laterally ", promptly go up the direction of fixture block and following fixture block clamping, shown in arrow B among Fig. 5.

Claims

1, a kind of Bus line cramp, the last fixture block and the following fixture block that comprise paired cooperation, last fixture block and following fixture block are provided with groove and cell wall, it is characterized in that: the cell wall of going up fixture block and the outermost side of following fixture block is respectively equipped with vertical through hole, be provided with bolt in each through hole, be provided with screw shell between the bolt of the bolt of last fixture block and following fixture block, the bolt of the bolt of last fixture block and following fixture block is tightened on respectively in the corresponding screw shell both ends, to go up the cell wall of the outermost side of fixture block and the cell wall of following fixture block correspondence thus and be fixedly linked up, the periphery of whole Bus line cramp forms end to end annular frame structure.

2, according to the Bus line cramp of claim 1, it is characterized in that: the screw shell periphery also is arranged with insulating case, and insulating case is clamped between the cell wall of the cell wall of fixture block and following fixture block.

3, according to the Bus line cramp of claim 1 or 2, it is characterized in that: between last fixture block and following fixture block, also be provided with the separation back-up block, separate back-up block and be arranged between the out of phase bus position.