A kind of switch cabinet bus row ground line
Technical field
The utility model relates to a kind of ground line, especially a kind of switch cabinet bus row ground line.
Background technique
It in the power system, will when ground line is to unexpectedly voltage occur in the equipment or route having had a power failure
Electric current introduces the earth, to ensure the important operation tool of worker safety.
Currently, most of ground line is made of insulating bar 1, " C " type clamp 2, grip block 3 and ground lead 4, join
See Fig. 1, " C " the type clamp 2 constitutes " C " type structure by upper horizontal edge 2a, vertical edge 2b and lower horizontal edge 2c, in insulating bar 1
Top be equipped with screw rod 10, screw rod 10 pass through " C " type clamp 2 lower horizontal edge 2c on screw hole after be connected with grip block 3, clamp
One end of block 3 is placed in the sliding slot 11 on the vertical edge 2b of " C " type clamp 2, the upper horizontal edge 2a structure of grip block 3 and " C " type clamp 2
At clamp port;The clamping screw 5 for fastening ground lead 4 is equipped on " C " type clamp 2.
Above-mentioned ground line when in use, drives grip block upper and lower along sliding slot by controlling the rotation of insulating bar
It is mobile, to realize the clamp position of control clamp port.However, usually in use, since " C " type clamp is on-fixed
State, it generally can occur correspondingly to rotate with the rotation of insulating bar, and operator is needed to help on the other hand in operation
" C " type clamp, the rotating insulated operating stick of the other hand, operation difficulty is big, consuming time is long, is difficult real to power failure equipments or route
Efficiently and effectively clipping operation is applied, so that delay stops electric power feeding time, influences the reliability and Moral Culture Construction of power supply.
Especially when carrying out clipping operation to the bus bar in switchgear, due to the operating space in switch cabinet of converting station
Narrow, bus bar is than relatively thin, and its width is typically set to 80mm, 100mm and 120mm three types, and existing ground line is more
It is difficult to that effective clamping operation, its " C " type clamp cannot be adapted to the clamping to the bus bar of different in width in real time to bus bar
Operation, and will appear " C " type clamp in clipping operation and be easy to turn greatly to fall off on bus bar, bus bar cannot be clamped completely
Problem, to cause inefficient operation, bus bar cannot be implemented reliably grounded, seriously affect the person peace of operator
Entirely.
Summary of the invention
The purpose of this utility model seeks to solve currently employed existing ground line to the bus bar progress in switchgear
When ground connection operation, " C " the type clamp that will appear ground line in clipping operation, which is easy to spin on bus bar, to fall off, cannot be complete
The problem of clamping bus bar provides a kind of switch cabinet bus row ground line thus.
The concrete scheme of the utility model is: a kind of switch cabinet bus row ground line, including insulating bar, " C " type folder
Body, grip block and ground lead, wherein " C " type clamp is made of " C " type structure, " C " type folder upper horizontal edge, vertical edge and lower horizontal edge
Clamp port is constituted between the upper horizontal edge and grip block of body, the clamping screw for fastening ground lead is equipped on " C " type clamp;
It is characterized in that: the insulating bar is set as hollow structure, the head end of insulating bar connects " C " type folder by universal ball joint
The lower horizontal edge of body;At least two support springs are installed, in " C " type clamp between the grip block and the lower horizontal edge of " C " type clamp
Lower horizontal edge on and the side wall of insulating bar head end on it is corresponding offer threading hole A and threading hole B, the downside of grip block connects
One end of drawstring is connect, the other end of drawstring is connected after sequentially passing through threading hole A, B with drawstring tightening device, drawstring tightening dress
Set including be successively set on insulating bar tail end the body of rod on stop collar A, help pull a cart and stop collar B, stop collar A, B fixation sets
It is placed on insulating bar, helps pull a cart and slided up and down along insulating bar, equipped with for connection stay cord on the inner wall helped pull a cart
Attachment base, and the pilot hole to match with attachment base is offered on insulating bar;Under the upper horizontal edge of " C " the type clamp
The upper side of side and grip block is equipped with elastic conducting layer.
The sliding slot arranged vertically is offered on the vertical edge of " C " type clamp described in the utility model;The grip block
One end stretches in sliding slot, and sliding slot slides above and below.
The upper side of the upper horizontal edge of " C " type clamp described in the utility model is equipped at least row's threaded post, in threaded post
The upper clamping member being fitted with by nut for clamping bus bar.
Clamping member described in the utility model is made of the clamp of strip plate and 90 ° of bendings that strip front edge of board is arranged in,
Offered on strip plate along its long side arrangement kidney ellipsoid adjustment hole, and along adjustment hole be equipped with respectively be identified with 80mm,
100mm and 120mm clamps the graticule of position;The threaded post passes through adjustment hole and is fastened on clamping member by equipped nut
Elastic cushion block is set in threaded post on " C " type clamp, and between clamping member and " C " type clamp.
Universal ball joint described in the utility model is formed by hemispherical deck and bulb are equipped;In hemispherical deck
Several hemispherical grooves are offered on wall;It is provided with telescopic pin in bulb, the head end of telescopic pin is set as hemispherical dome structure, can edge
Pin hole on bulb stretch out, and match with the hemispherical groove on the inner wall of hemispherical deck;It is equipped in the bulb solid
The tail end of fixed board A and fixed plate B, telescopic pin stretch between fixed plate A, B from the guide sleeve being arranged on fixed plate B, solid
The pressure spring being set in telescopic pin is equipped between fixed board A, B, and pressure spring is connected on the snap-gauge of telescopic pin tail end.
Attachment base described in the utility model is made of the cross bar for passing through pilot hole with the spacing head that crossbar end is arranged in;
The drawstring binding is on cross bar.
The material that elastic conducting layer described in the utility model is selected is conducting foam or beryllium copper.
The utility model structure is simple and convenient to operate, and being helped pull a cart by hand-held, it is i.e. controllable to slide along insulating bar
The folding condition for making clamp port on " C " type clamp is realized and is efficiently and effectively clamped to the bus bar implementation of different specification size
Operation, also ensures good electrical contact between " C " type clamp and bus bar, ensures that the personal safety of operator.
Detailed description of the invention
Fig. 1 is the structural schematic diagram being grounded in the prior art;
Fig. 2 is the structural schematic diagram of the utility model;
Fig. 3 is mounting structure schematic diagram of the clamping member on " C " type clamp in the utility model;
Fig. 4 is the schematic diagram of the section structure of universal ball joint in the utility model;
Fig. 5 is the mounting structure schematic diagram helped pull a cart on insulating bar in the utility model.
In figure: 1-insulating bar, 2-" C " type clamps, 2a-go up horizontal edge, the lower horizontal edge of 2b-vertical edge, 2c-, and 3-
Grip block, 4-ground leads, 5-clamping screws, 6-universal ball joints, 6a-hemispherical deck, 6b-bulb, 7-supports
Spring, 8-threading hole A, 9-threading hole B, 10-screw rods, 11-sliding slots, 12-drawstrings, 13-stop collar A, 14-help pull a cart,
15-stop collar B, 16-attachment bases, 16a-cross bar, 16b-spacing head, 17-pilot holes, 18-elastic conducting layers, 19-spiral shells
Line column, 20-clamping members, 20a-strip plate, 20b-clamp, 20c-adjustment hole, 20d-graticule, 21-elastic cushion blocks, 22-
Hemispherical groove, 23-telescopic pins, 24-pin holes, 25-fixed plate A, 26-fixed plate B, 27-guide sleeves, 28-pressure springs,
29-snap-gauges.
Specific embodiment
Referring to fig. 2, a kind of switch cabinet bus row ground line, including insulating bar 1, " C " type clamp 2, grip block 3 and connect
Ground lead 4, wherein " C " type clamp 2 constitutes " C " type structure by upper horizontal edge 2a, vertical edge 2b and lower horizontal edge 2c, " C " type clamp 2
Clamp port is constituted between upper horizontal edge 2a and grip block 3, the clamping screw for fastening ground lead 4 is equipped on " C " type clamp 2
5;The insulating bar 1 is set as hollow structure, and the head end of insulating bar 1 connects " C " type clamp 2 by universal ball joint 6
Lower horizontal edge 2c, universal ball joint 6 be convenient for by operator in narrow space to bus bar implement clipping operation;The folder
Hold and two support springs 7 be installed between block 3 and the lower horizontal edge 2c of " C " type clamp 2, on the lower horizontal edge 2c of " C " type clamp 2 and
Correspondence offers threading hole A8 and threading hole B9, the downside connection stay cord 12 of grip block 3 on the side wall of 1 head end of insulating bar
One end, the other end of drawstring 12, which sequentially passes through, to be connected after threading hole A8 and threading hole B9 with drawstring tightening device, drawstring
Tightening device includes the stop collar A13 being successively set on the body of rod of 1 tail end of insulating bar, help pull a cart 14 and stop collar B15, limit
Position ring A13 and stop collar B15 is fixedly installed on insulating bar 1, and help pull a cart 14 slides up and down along insulating bar 1, is being drawn
Equipped with the attachment base 16 for connection stay cord 12 on the inner wall of set 14, and offered and 16 phase of attachment base on insulating bar 1
Matched pilot hole 17;The downside of upper horizontal edge of " C " the type clamp 2 and the upper side of grip block 3 are equipped with elastic conduction
Layer 18, elastic conducting layer 18 is for ensuring good electrical contact between " C " type clamp 2 and bus bar.
The sliding slot 11 arranged vertically is offered on the vertical edge of " C " type clamp described in the present embodiment 2;The grip block 3
One end stretch in sliding slot 11, and sliding slot 11 above and below slide.
Referring to Fig. 3, it is four total that the upper side of the upper horizontal edge of " C " type clamp described in the present embodiment 2 is equipped with front two rows
Threaded post 19 is fitted with the clamping member 20 for clamping bus bar by nut in threaded post 19.
Referring to Fig. 3, clamping member 20 described in the present embodiment is by strip plate 20a and 90 ° of foldings that the front end strip plate 20a is arranged in
Curved clamp 20b composition, offers the kidney ellipsoid adjustment hole 20c along its long side arrangement, and along adjustment hole on strip plate 20a
20c is equipped with and is identified with the graticule 20d that 80mm, 100mm and 120mm clamp position respectively;The threaded post 19 passes through adjustment hole 20c simultaneously
Clamping member 20 is fastened on " C " type clamp 2 by equipped nut, and the screw thread between clamping member 20 and " C " type clamp 2
Elastic cushion block 21 is set on column 19, it is firm to ensure to fasten clamping member 20.
Referring to fig. 4, universal ball joint 6 described in the present embodiment is formed by hemispherical deck 6a and bulb 6b is equipped;Half
Several hemispherical grooves 22 are offered on the inner wall of globe holder 6a;It is provided with telescopic pin 23 in bulb 6b, telescopic pin 23
Head end is set as hemispherical dome structure, can stretch out along the pin hole 24 on bulb 6b, and with the hemisphere on the inner wall of hemispherical deck 6a
Connected in star 22 matches;Fixed plate A25 and fixed plate B26 is equipped in the bulb 6b, the tail end of telescopic pin 23 is from setting solid
Guide sleeve 27 on fixed board B26 stretches between fixed plate A25 and fixed plate B26, between fixed plate A25 and fixed plate B26
Equipped with the pressure spring 28 being set in telescopic pin 23, and pressure spring 28 is connected on the snap-gauge 29 of 23 tail end of telescopic pin.
Referring to Fig. 5, attachment base 16 described in the present embodiment is by passing through the cross bar 16a of pilot hole 17 and being arranged in cross bar 16a
The spacing head 16b of end is formed;The binding of drawstring 12 is on cross bar 16a.
The material that elastic conducting layer 18 described in the present embodiment is selected is conducting foam or beryllium copper.
The operation of the utility model is as follows: due under normal conditions, the work of clamp port on " C " type clamp 2 in support spring 7
It is in closed state with lower, thus, when narrow space carries out ground connection operation to bus bar in switchgear, only need first basis
The width of bus bar adjusts installation position of the clamping member 20 on " C " type clamp 2, this can be by being arranged on clamping member 20
Graticule 20d realizes the Fast Installation of clamping member 20;Then, start the clipping operation to bus bar, in operation, need to only hold
Pulling help pull a cart 14 along insulating bar 1 sliding clamp port can be opened, then, the clamp 20b card on clamping member 20 is leaned on
In the left side of bus bar, clamp port card is leaned against to the right side of bus bar, finally unclamps and helps pull a cart 14, " C " type clamp 2 can be by bus
Row firmly clamps.