CN2279721Y

CN2279721Y - Crank-guide type bus-bar groove jack switch box

Info

Publication number: CN2279721Y
Application number: CN 96218406
Authority: CN
Inventors: 潘自强; 李德生; 王宝信; 侯福泉; 李汇亭
Original assignee: JINGAN XINGDA ELECTROMECHANICAL EQUIPMENT CO BEIJING
Current assignee: JINGAN XINGDA ELECTROMECHANICAL EQUIPMENT CO BEIJING
Priority date: 1996-08-15
Filing date: 1996-08-15
Publication date: 1998-04-22
Anticipated expiration: 2006-08-15

Abstract

The utility model relates to a crank-guide type bus-bar groove jack switch box in which a guide rod is arranged. One end of the guide rod extends out of the box. The guide rod is fixedly connected with an L-shaped pulling wrench which is used for inserting and clamping the wrench of an air switch. The guide bar is provided with a slide way and a rocking arm is sheathed on the stationary shaft in the slide way. The rocking arm is fixedly connected with a pendulum shaft, both ends of which extend out of the box and the end is fixedly connected with an operation handle. The inner wall of the box cover is provided with an inserting plate. If the operation handle is pushed by hands, the wrench of the air switch can be made to act. When the wrench is positioned at a 'close' position, the tongue plate of the pulling wrench can be inserted and clamped in the inserting plate. The box cover can not be opened, which ensures the operational safety. The switch box is safe in operation and is easy to popularize.

Description

Link-type bus duct jack switch case

The utility model relates to a kind of bus duct jack switch case.

The jack switch case is that the electric energy of bus duct distribution system is drawn the unit.Closely be connected with the bus duct copper bar by the grafting conductive contact.Because this contact does not have special arc-control device, after the operation air switch cuts off electric current earlier, just allow the dial-out casing.If out-of-sequence operation, the bringing onto load plug will cause electrical arc erosion contact and personal injury.Application number is the utility model patent of 91205272.4 " bus duct jack switch case locking devices " by name, discloses a kind of locking device that prevents the plug of jack switch case bringing onto load.This device is to be provided with chamber door on the casing of switch-box, and the tool outage regulator cubicle control lock of function of closing the door of opening the door, switch on is housed on the chamber door, by the locking bolt that is contained in the casing casing is connected with bus groove case.This device must disconnect earlier air switch, the casing connection-peg could be transferred to or inserted bus duct after opening chamber door again.The shortcoming of this device is that cost height, and complicated operation are given to use to promote and brought certain difficulty owing to adopt the regulator cubicle control lock.

The purpose of this utility model is to realize a kind of link-type bus duct jack switch case.This switch-box had both been guaranteed handling safety, and was simple to operate again, cost is low, is easy to promotion and implementation.

The utility model is realized by following proposal, this link-type bus duct jack switch case, and this switch-box comprises casing and case lid, and air switch and casing electric power connecting head are housed in this casing.Described air switch side in this casing is provided with a guide rod, one end of this guide rod stretches out outside the casing by the sidewall through hole on the casing, affixed L shaped group of plate on this guide rod, the head of this group plate has a slot that is used for the described air switch handle of plug-in card, in addition, on described guide rod, have a chute, there is the rocking arm of a belt length groove at the middle part of this chute, the elongated slot of this rocking arm is enclosed within on the fixed axis of described chute, the upper end of this rocking arm is fixed on the balance staff, the two ends of balance staff pass from the through hole of two opposite side walls in addition of described casing respectively, and on the end of this balance staff affixed manipulating handgrip, be provided with a fixing plate on the corresponding position of close point with closing of described air switch on the inwall of described case lid, and extend at the slot place of described group of plate one be used for matching with fixing plate open with the control case lid, the hyoplastron that closes.

The utility model is described in further detail below in conjunction with accompanying drawing

Fig. 1 is a schematic diagram of the present utility model

As shown in Figure 1, air switch 1 side in casing 10 is provided with a guide rod 2, one end of this guide rod 2 stretches out outside the casing 10, affixed L shaped group of plate 16 on this guide rod 2, the L shaped plate face of this group plate 16 posts on the case face of air switch 1, and slot 17 plug-in cards of this group plate 16 heads are on the handle 18 of air switch 1.One chute 19 is arranged on the guide rod 2, a rocking arm 20 is arranged in the chute 19, the lower end elongated slot 21 of rocking arm 20 is enclosed within on the fixed axis 22 of chute 19, and the upper end of this rocking arm 20 is fixed on the balance staff 23, and this balance staff 23 stretches out outside the casing 10, and in the end of balance staff 23 affixed manipulating handgrip 5.Also on case lid, be provided with fixedly plate 24, the casing 10 sidewall through holes that guide rod 2 is corresponding with its external part, and balance staff 23 casing corresponding 10 with its external part in addition the two side through holes all be and be slidingly matched.When with hand propelled manipulating handgrip 5, can drive rocking arm 20 and in chute 19, swing, dial plate 16 actions thereby drive, make the handle 18 of air switch 1 shift " closing " position onto from " branch " position; Or shift " branch " position onto from " closing " position.As shown in Figure 1, push away in the position of " closing " when dialling the handle 18 of plate 16 with air switch 1, hyoplastron 6 plug-in cards that will dial plate 16 simultaneously can not open case lid in the fixedly plate 24 of case lid.Push away in the position of " branch " when dialling the handle 18 of plate 16 with air switch 1, cut off the electricity supply, the hyoplastron 6 of dialling plate 16 simultaneously withdraws from from the fixedly plate 24 of case lid, and case lid can be opened.Therefore this switch-box is when charged work, and case lid can not be opened, and avoids operating against regulations and causes personal injury.Only under the situation of cutting off the electricity supply, case lid just can be opened, and can carry out normal running.

As shown in Figure 1, on the position of the close external part on the described guide rod 2, have two

breach

25,26, the spacing of

breach

25,26 equals the distance of described air switch 1 handle 18 strokes, described group of plate 16 is under the handle 18 make position states of described air switch 1, the breach 25 by the end in the described

breach

25,26 is in outside the described casing 10, and hasp ring 4 and the retainer ring 27 that is used to lock described

breach

25,26 is housed on the outer wall of described casing 10 sidewalls.

As shown in Figure 1, have the jack box fixed via on the side stand 28 of described casing 10, this jack box fixed via be positioned at corresponding position, the bottom of described manipulating handgrip 5 on.In addition, there is the M6 screw hole corresponding position of bus duct 29 cover plates, and is furnished with fixed screw 3.

This switch-box is under charged operating state, and each position component as shown in Figure 1.(1) dial plate 16 this moment the handle 18 of air switch 1 is pushed away in the position of " closing ", the hyoplastron 6 that will dial plate 16 simultaneously is inserted in the fixedly plate 24 of case lid, and case lid can not be opened.(2) lock by hasp ring 4 and retainer ring 27 and be locked on breach 25 positions, whole operating mechanism can be locked under this state, to keep continued power along separate routes.(3) side of grafting casing 10 and the fixed screw 3 in the screw hole on fixed via on the frame 28 and bus duct 29 cover plates have been sealed in manipulating handgrip 5 present positions.Fixed screw 3 can not be screwed off under the charged situation of this switch-box, thereby can not dial down switch-box.Guarantee safety work.

This switch-box is under not charged non operating state, promptly from the enterprising line operate of each position component shown in Figure 1.(1) locking mechanism is opened, pushed away manipulating handgrip 5 left, push the handle 18 of air switch 1 position of to " branch ", cut off the electricity supply, hyoplastron 6 withdraws from from plate 24 simultaneously, and case lid can be opened.(2) if need maintenance along separate routes, still locking mechanism can be locked, on locking notch 26 positions, can guarantee safety inspection.(3) manipulating handgrip 5 left sides postpone its lower end and must remove original position to the right, and fixed screw 3 is come out.If screwing off fixed screw 3 just can dial this switch-box down from bus duct 29.

In sum, this switch-box had both been guaranteed handling safety, and was simple to operate again, cost is low, is easy to promotion and implementation.

Claims

1, a kind of link-type bus duct jack switch case, this switch-box comprises casing and case lid, air switch and casing electric power connecting head are housed in this casing, it is characterized in that the described air switch side in this casing is provided with a guide rod, one end of this guide rod stretches out outside the casing by the sidewall through hole on the casing, affixed L shaped group of plate on this guide rod, the head of this group plate has a slot that is used for the described air switch handle of plug-in card, in addition, on described guide rod, have a chute, there is the rocking arm of a belt length groove at the middle part of this chute, the elongated slot of this rocking arm is enclosed within on the fixed axis of described chute, the upper end of this rocking arm is fixed on the balance staff, the two ends of balance staff pass from the through hole of two opposite side walls in addition of described casing respectively, and on the end of this balance staff affixed manipulating handgrip, be provided with a fixing plate on the corresponding position of close point with closing of described air switch on the inwall of described case lid, and extend at the slot place of described group of plate one be used for matching with fixing plate open with the control case lid, the hyoplastron that closes.

2, link-type bus duct jack switch case according to claim 1, it is characterized in that: on the position of the close external part on the described guide rod, have two breach, the spacing of breach equals the distance of the handle stroke of described air switch, described group of plate is under the handle make position state of described air switch, the breach by the end in the described breach is in outside the described casing, and hasp ring and the retainer ring that is used to lock described breach is housed on the outer wall of described wall box.

3, link-type bus duct jack switch case according to claim 1 and 2 is characterized in that: on the side stand of described casing, have the jack box fixed via, this jack box fixed via be positioned at corresponding position, the bottom of described manipulating handgrip on.