CN2153885Y

CN2153885Y - Bus plugging box

Info

Publication number: CN2153885Y
Application number: CN 93236975
Authority: CN
Inventors: 郭道鹏
Original assignee: ZHENJIANG CITY POWER EQUIPMENT FACTORY
Current assignee: ZHENJIANG CITY POWER EQUIPMENT FACTORY
Priority date: 1993-05-31
Filing date: 1993-05-31
Publication date: 1994-01-19
Anticipated expiration: 2003-05-31

Abstract

A kind of jack box, construct a kind of mechanical linkage controlling device with safe protection function between box, case lid, bus contact and shunt circuit breaker, it includes: A. a 'slide plate-lock core' buckling type interlocking mechanism for controlling the opening and closing of the plug box by handle operation; B. the handle operates the connecting rod type linkage mechanism which controls the breaker to realize the connection or disconnection of the shunt circuit; C. the handle operates a movable pin type linkage mechanism which restricts the bus contact and the socket thereof to realize 'plug-in' or 'separation'.

Description

Bus-bar plug cubicle

The utility model belongs to a kind of indoor power supply bus shunting plug assembly.

Along with economic development, increasing of huge high-rise, the use of indoor power supply bus is day by day extensive, the docking apparatus of its shunt circuit also arises at the historic moment, and its existing procucts all are only to have the simple and easy jack box that patches device the most substantially, its shortcoming is: take place easily to get an electric shock or electric arc such as wounds at personal injury in the occasion of hot line job, especially in big electric current power supply, the more frequent large-scale office premises of pegging graft, make or accident because of misoperation, consequence is even more serious.

The purpose of this utility model is to propose a kind of power supply buses jack box with safety interlocking function, with shortcoming that overcomes existing product and the generation of avoiding misoperation fault.

The purpose of this utility model realizes by the following technical solutions, the substance of this scheme relates to a kind of like this bus jack box, it is closed up by casing and case lid two parts and forms, in the bottom of casing the bus contact is installed, of the present utility model being characterised in that: above the bus contact shunt circuit circuit breaker is housed also at this, mechanical linkage control device that usefulness is lever operated of structure between casing, case lid, bus contact and circuit breaker, the basic comprising of this device comprises:

A, lever operated and jack box open and close " slide plate-lock core " buckled interlocking device of control;

B, lever operated control circuit breaker are realized the link-type link gear of shunt circuit " connection " or " disconnection ";

C, lever operated restriction bus contact and its socket are realized " movable pin " the formula link gear of " grafting " or " separation ".

Specific embodiment of the utility model can be illustrated by means of accompanying drawing:

Fig. 1 is the utility model bus jack box mechanical linkage control device structure principle chart.

Fig. 2 is the utility model bus jack box front view (internal structure demonstration).

Fig. 3 is the utility model bus jack box rearview (signal of handle installation situation).

Fig. 4 is the utility model bus jack box left view (casing and case lid close up locking mechanism action signal).

Each building block in the accompanying drawing is that preface is carried out mark (1) case lid with the Arabic notation, (2) rotor, (3) main support arm, (4) lock core, (5) fixed axis, (6) slide plate, (7) spring, (8) pull bar, (9) casing, (10) bearing, (11) pivot pin, (12) spring, (13) finger, (14) rotor, (15) assist support arm, (16) rocking arm, (17) auricle, (18) handle, (19) spring, (20) screw, (21) circuit breaker, (22) line outlet, (23) hinge, (24) bus contact, (25) insulated receptacle, (26) sheet plug-in unit, (27) divide, close mark, (28) bearing, (29) pointer.

In conjunction with the accompanying drawings the dynamic fit (operating principle) of present embodiment said structure composition is described as follows again:

When casing 9 closed up with case lid 1, as shown in Figure 4, the auricle 17 of locking mechanism resetted, and case lid and casing are blocked mutually, and can lock on auricle 17.

When case lid 1 is in opening, slide plate 6 is pulled " α " angle under the effect of spring 7, and this moment, fixed axis 5 was stuck in the skateboards slot, and 18 on the handle original position that is fixed can not be advanced to the position of " closing "; Close after the case lid 1, slide plate 6 is driven plain, and handle 18 could change one " α " angle counterclockwise from initial position, to final position (being "on" position).

In the making process, handle 18 drives main support arm 3 rotations simultaneously and slide plate 6 is moved to the left, and the flanging position of slide plate and the 4 mutual clampings of hook-shaped lock core are located this position and can not be opened case lid, and at this moment main support arm affects pull bar 8 that circuit breaker 21 is connected.

In the time of closing operation, main support arm 3 afterbodys then drive sheet plug-in unit 26 segment distance that moves right, and are locked in the bus plug receptacle that shape is complementary with it, and when guaranteeing that circuit is connected, jack box can not take off the socket from bus.

When handle 18 is in initial position (is the position of " branch " among Fig. 3, can add special handle locking mechanism, to guarantee the line maintenance safety after jack box, realize with string mortise lock select in the concentric holes on the bearing 28 that is fixed in casing corresponding to the handle initial position in the hole that this has above by the pointer 29 of handle 18 or affixed with it " divide, close " mark.

For easy to operate, handle 18 can be installed on adjacent two sides of casing respectively, as shown in Figure 3, in the casing side parallel with slide plate, handle 18 directly links to each other with main support arm 3, and in adjacent another side, handle 18 links with main support arm 3 through an auxiliary support arm 15 and rocking arm 16 again.

Form and dynamically be connected fit form from the static structure of bus jack box shown in the drawings, can summarize a kind of concrete finite form of the utility model basic technical features:

At first, described lever operated " slide plate-lock core " buckled interlocking device that controls with the jack box keying, its slide plate is the rectangle slide plate 6 that has local flanging, lock core is to be hook-shaped lock core 4; Have on chute and casing 9 inwalls two fixed axis 5 be to be slidingly connected on the slide plate 6 and cooperate, described slide plate 6 is again by pivot pin 11 and main 3 movable bindings of support arm; Described lock core 4 is contained on the case lid 1, it with the local flanging of slide plate 6 mutually clamping realize sealed.

Secondly, described lever operated control circuit breaker is realized the link-type link gear of shunt circuit " connection " or " disconnection ", is one group of linkage of being made up of handle 18 and main support arm 3 and circuit breaker pull bar 8.

Also have, described lever operated restriction bus contact and its socket are realized " movable pin " the formula link gear of " grafting " or " separation ", have two sheet plug-in units 26 to be installed on bus contact 24 pedestal both sides, the gap of these plug-in unit 26 upper ends is connected in the finger 13 of main support arm 3 afterbodys; The middle part of sheet plug-in unit 26 is connected in the holder 10 on 24 liang of side box bodies 9 of bus contact, is sliding rail formula connected mode; The shape and size of the lower end of sheet plug-in unit 26 are complementary with socket on the corresponding bus.

In addition, described handle 18 also is equipped with locking mechanism at its initial position, and this locking mechanism has the corresponding concentric holes inter-burst mortise lock select on specific hole and the bearing 28 that is fixed in casing and constitutes by " dividing, close " at handle 18 or with this handle Joint on the pointer 29 of mark.

Advantage of the present utility model and effect are that it has following defencive function.

A, when the case lid of jack box is in opening, handle just can not be shifted the position of " closing " onto, only has case lid is closed, and handle can be shifted onto the position of " closing ", and plugged; And handle is in the position of " closing ", and case lid can not be opened again.

B, only have the position that is in " branch " when handle, jack box could be inserted the socket on the bus, perhaps from socket, jack box is taken off.

C, when maintenance shunt circuit system, handle can lock.

Because above-mentioned defencive function uses power supply buses jack box of the present utility model can significantly reduce operating accident, and improve the Electrical Safety unfailing performance.

Claims

1, a kind of bus jack box, close up by casing and case lid and to form, bottom half is equipped with the bus contact, feature of the present utility model is, the shunt circuit circuit breaker also is housed in the casing on the bus contact, be configured with a mechanical linkage control device that usefulness is lever operated between described casing, case lid, bus contact and circuit breaker, the basic comprising of this device comprises:

2, according to the described bus jack box of claim 1, it is characterized in that: described lever operated " slide plate-lock core " buckled interlocking device that controls with the jack box keying, its slide plate is the rectangle slide plate (6) that has local flanging, lock core is to be hook-shaped lock core (4); Have on chute and casing (9) inwall two fixed axis (5) be to be slidingly connected on the slide plate (6) and cooperate, described slide plate (6) links by pivot pin (11) and main support arm (3) are movable again; Described lock core (4) is contained on the case lid (1), it with the local flanging of slide plate (6) mutually clamping realize sealed.

3, bus jack box according to claim 1, it is characterized in that: described lever operated control circuit breaker is realized the link-type link gear of shunt circuit " connection " or " disconnection ", is one group of linkage of being made up of handle (18) and main support arm (3) and circuit breaker pull bar (8).

4, bus jack box according to claim 1, it is characterized in that: described lever operated restriction bus contact and its socket are realized " movable pin " the formula link gear of " grafting " or " separation ", its specific constructive form is: have two sheet plug-in units (26) to be installed on bus contact (24) pedestal both sides, the gap of this plug-in unit (26) upper end is connected in the finger (13) of main support arm (3) afterbody; The middle part of sheet plug-in unit (26) is connected in the holder (10) on bus contact (24) two side box bodies (9), is sliding rail formula connected mode; The shape and size of the lower end of sheet plug-in unit (26) are complementary with socket on the corresponding bus.

5, bus jack box according to claim 1, it is characterized in that: described handle (18) also is added with locking mechanism at its initial position, and this locking mechanism has specific hole and goes up corresponding concentric holes inter-burst mortise lock select with the bearing that is fixed in casing (28) and constitute by " dividing, close " at handle (18) or with this handle Joint on the pointer (29) of mark.