CN107046250B - Vertical lifting type high-safety dual-power-supply power supply device and control method - Google Patents

Abstract

The invention discloses a vertical lifting type high-safety dual-power-supply power supply device, which comprises a support, a busbar integrated insulated contact box, lifting mechanisms and a handcart, wherein the support is provided with a vertical beam in the middle, the busbar integrated insulated contact box is fixedly arranged on one side of the top of the support, the lifting mechanisms are arranged on two sides of the vertical beam of the support, and the handcart is arranged on a supporting plate and bears a plurality of side outgoing type polar columns; the invention relates to a translation driving type protection mechanism, which adopts a front door plate and a rear door plate which are communicated with a moving part and are arranged at intervals in a front-back manner, adopts a front-back stacking manner, effectively saves the design space of a valve, realizes the miniaturization of a driving mechanism, has a reasonable structure, realizes the corresponding overlapping or staggering of through holes by utilizing the action control of the intermittent driving translation of the front door plate and the rear door plate by a handcart, effectively ensures the safety, and is concise to realize and reliable in action.

Description

Vertical lifting type high-safety dual-power-supply power supply device and control method

Technical Field

The invention relates to a dual-power supply changeover switch device and the technical field of a switch cabinet thereof, in particular to a vertical lifting type high-safety dual-power supply device and a control method.

Background

In the known power distribution technical field, the draw-out mechanism is generally applied due to the characteristics of simple and convenient operation, convenient maintenance and replacement and the like. The most mechanism of taking out that adopts the horizontal direction of prior art, the operator openly level is operated, in order to have sufficient horizontal depth, accomplishes to take out and impels the completion of action, and the cubical switchboard attaches the body and requires vertical degree of depth, especially in well high voltage switch cabinet, uses and takes out the structure for the vertical degree of depth of high voltage switch cabinet is great, has increased the volume of the cabinet body. And the existing valve mechanism also faces the problems of large occupied volume, poor linkage and the like. Meanwhile, the existing busbar has the problems that the whole size is large, the connection points are too many to easily cause heating, the insulating property of an insulating material is influenced, the height space is utilized, the linkage matching of all parts is realized, and the grounding safety is improved.

Disclosure of Invention

The invention aims to provide a vertical lifting type high-safety dual-power-supply power supply device and a control method aiming at the technical defects in the prior art.

The technical scheme adopted for realizing the purpose of the invention is as follows:

a vertical lifting type high-safety dual-power supply device comprises,

the middle part is provided with a bracket of a vertical beam,

the bus bar integrated insulated contact box is fixedly arranged on one side of the top of the bracket and comprises three bus bars which are arranged at intervals and are coated by an insulator, wire inlet ends and wire outlet ends which are respectively and correspondingly arranged at two ends of the bus bars and the outer ends of which are exposed out of the insulator, and contact boxes which are correspondingly arranged with the wire inlet ends and are integrally formed with or fixedly connected with the insulator in a one-to-one correspondence with the wire outlet pole columns on the side;

the lifting mechanism comprises a supporting plate which is driven to vertically lift relative to the support, two support arms which are hinged below the supporting plate and are arranged in a splayed shape, a bottom rail which is matched and connected with the lower ends of the support arms and is fixedly connected with the support, and a locking mechanism which is used for locking the lower ends of the two support arms to prevent the two support arms from separating;

the handcart is arranged on the supporting plate and bears a plurality of side outgoing type polar columns, limiting parts are arranged on two sides or end parts of the supporting plate, the rear side surface of each limiting part is an inclined surface with an upper side protruding forwards, a butt joint part matched with the limiting parts is formed on the handcart, the front side surface of each butt joint part is a slope surface corresponding to the inclined surface, and the limiting parts are directly connected with a grounding point of the lifting mechanism through a lead;

the translation driving type protection mechanism comprises a linkage pin which is fixedly arranged on one side of the supporting plate and extends horizontally, a sector gear which is rotatably and fixedly arranged on a bracket and is provided with a guide groove matched with the linkage pin, and a rack which is engaged with the sector gear and is fixedly connected with the insulating valve,

the insulating valve comprises a front door plate and a rear door plate which are arranged in parallel and are driven by racks fixedly connected with the insulating valve to synchronously and asynchronously or flatly move in different directions, through holes corresponding to main buses are respectively formed in the front door plate and the rear door plate, the front door plate and the rear door plate are driven to be located at positions corresponding to the front and the rear of the through holes when the insulating valve is opened, the front door plate and the rear door plate are driven to asynchronously move in the same direction when the insulating valve is closed, and the through holes of the front door plate and the rear door plate are staggered to seal the through holes by utilizing a hole-free position.

The locking mechanism comprises a strip-shaped ratchet which is fixedly arranged on the sliding block and extends along the track direction, a ratchet finger which is rotatably fixed relative to the support and corresponds to the ratchet, and an operating rod which can drive the ratchet finger to synchronously turn inwards or outwards so as to keep or separate the ratchet from contact with the ratchet.

The locking mechanism comprises a rotating rod extending along the direction of the bottom rail and at least one pair of locking parts arranged on the rotating rod, and the locking or releasing of the locking parts to the lower end of the support arm can be realized by rotating the rotating rod.

Sector gear including the big pitch circle radius sector gear and the small pitch circle radius sector gear of coaxial setting, preceding door plant and back door plant respectively with big pitch circle radius sector gear and the meshing rack of being connected of small pitch circle radius sector gear with the fixed connection who corresponds in order to realize the synchronous drive of syntropy, the guide way include preceding sliding section and middle linkage section, the action part can drive sector gear and rotate when the interlocking pin is in middle linkage section, can not drive sector gear at the front sliding end and rotate.

The insulator is fixedly arranged on one side of the bracket through the positioning frame, and an embedding groove corresponding to the frame body of the positioning frame is formed on the installation side of the insulator corresponding to the positioning frame.

The front door plate and the rear door plate are driven to horizontally or vertically translate, and a moving support mechanism is arranged between the front door plate and the support and between the rear door plate and the support.

The movable supporting mechanism comprises a sliding rail fixedly connected with the front door plate or the rear door plate, and a plurality of guide rollers or guide wheels which are correspondingly arranged in a bracket type and are arranged in two rows, and the guide rollers or the guide wheels clamp and position the sliding rail.

The movable supporting mechanism comprises a linear guide rail fixedly arranged on the support and a plurality of sliding blocks which are correspondingly and fixedly connected with the front door panel or the rear door panel and are matched with the linear guide rail.

The driving mechanism of the front door plate and the rear door plate comprises racks which are fixedly connected with or integrally formed with the front door plate or the rear door plate respectively and extend along the moving direction, gears which are arranged corresponding to the racks and have different diameters or are simultaneously meshed with the two racks, and a driving part for driving the gears to rotate.

A control method of a vertical lifting type high-safety dual-power-supply power supply device comprises the following steps,

1) the supporting plate is positioned at the lowest position, and the handcart is pushed to move forwards along the supporting plate until the handcart is limited and is locked relative to the supporting plate; at the moment, the through holes of the front door plate and the rear door plate leave the main bus and the contact box, and the front door plate and the rear door plate stop driving and keep a closed state when the through holes are staggered back and forth;

2) the supporting plate is driven to rise, the lower end of the supporting arm is synchronously folded along the bottom track, teeth of the ratchets sweep the ratchet fingers one by one, and meanwhile, the linkage pin drives the sector gear to rotate in the rising process of the supporting plate and drives the front door plate and the rear door plate to be driven to synchronously and asynchronously translate in the same direction or in the opposite direction and enable the through holes to correspondingly form a channel allowing the moving contact to pass through up and down;

3) the supporting plate stops driving after being lifted to the highest position, the ratchet finger is positioned on the outer side of the outermost tooth of the ratchet and tightly pushed, and the rotating rod is rotated to lock the lower end of the supporting arm by using the locking part;

4) when the ratchet is required to be lowered, the rotating rod is rotated to release the locking part, and the operating rod is pushed to enable the ratchet to rotate outwards to release the engagement with the ratchet;

5) the driving supporting plate is lowered to a low position, and meanwhile, the front door plate and the rear door plate are restored to a closed state in the lowering process, the locking of the opposite supporting plate is released, and the handcart is pulled out.

Compared with the prior art, the invention has the beneficial effects that:

the invention sets the actuating mechanism on the lifting supporting plate, fully utilizes the height space, simplifies the actuating mechanism, adopts the front door plate and the rear door plate which are led to move and are arranged at intervals front and back, adopts the form of stacking front and back, effectively saves the design space of a valve, realizes the miniaturization of the actuating mechanism, has reasonable structure, realizes the corresponding overlapping or staggering of the through holes by utilizing the action control of the intermittent driving translation of the front door plate and the rear door plate by the handcart, effectively ensures the safety, realizes the conciseness and has reliable action. The invention wraps the bus bar in the insulator, uses the insulator to position and insulate the bus bar, improves the use safety, and the bus bar is directly connected with the wire inlet end and the wire outlet end, such as integrally formed or welded with the bus bar, reduces the threaded connection, reduces the insulation processing difficulty of the connection, especially pours the bus bar after connecting with the wire inlet end and the wire outlet end, naturally shields the connection, reduces the post processing difficulty, and improves the reliability.

Drawings

Fig. 1 is a schematic structural side view of a busbar integrated insulated contact box according to the present invention;

fig. 2 is a schematic perspective view illustrating a structure of the busbar integrated insulated contact box according to the present invention;

FIG. 3 is a schematic view of a front door panel structure;

figure 4 shows a side view of the shutter mechanism.

FIG. 5 is a schematic structural view of the lifting mechanism of the present invention;

FIG. 6 is a side view of the structure of FIG. 1;

FIG. 7 is an enlarged view of the ratchet and ratchet fingers;

fig. 8 shows a schematic structure of the limiting part and the abutting part.

FIG. 9 is a schematic view of the translation drive mechanism;

figure 10 is an enlarged view of part a of figure 7,

fig. 11 is a partially enlarged view of part B shown in fig. 7.

Detailed Description

The invention is described in further detail below with reference to the figures and specific examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1-11, the vertical lifting type high-safety dual-power supply device of the present invention comprises a bracket, a busbar integrated insulated contact box fixedly disposed on one side of the top of the bracket, a supporting plate vertically liftably disposed on a vertical beam 11 of the bracket 1, a plurality of side outlet poles 70 disposed on the supporting plate, and a movable opening and closing type high-voltage insulated valve; the busbar integrated insulated contact box comprises three busbars 81, 82 and 83 which are arranged at intervals and are coated by insulators, a wire inlet end 84 and a wire outlet end 85 which are respectively arranged at two ends of the busbar correspondingly and the outer ends of which are exposed out of the insulators, and a contact box 86 which is arranged correspondingly to the wire inlet end and is formed integrally with or fixedly connected with the insulators in a one-to-one correspondence with the side wire outlet pole columns, such as bonding; the wire outlet end is a block whose outer end face is exposed outside the insulator, and is provided with a connecting hole for connecting with a cable, and the wire inlet end 84 is also a plate which is exposed outside the insulator and extends for a predetermined distance to be used as a static contact and a moving contact to realize electric connection. The insulator is made of glass fiber or epoxy resin or other insulating materials, and the busbar and the insulator are integrally poured or coated in other modes.

The translation driving type protection mechanism comprises a linkage pin which is fixedly arranged on one side of the supporting plate and extends horizontally, a sector gear which is rotatably and fixedly arranged on the bracket and is provided with a guide groove matched with the linkage pin, and a rack which is engaged with the sector gear and is fixedly connected with the insulating valve,

the translational open-close type insulation valve comprises a front door plate 91 and a rear door plate 92 which are arranged in parallel and driven to translate synchronously and asynchronously or reversely, the front door plate and the rear door plate are respectively provided with through holes 93 which correspond to the main bus and the bus bar and allow the contact to pass through, wherein the front door panel and the rear door panel are in a Z-shaped structure integrally and respectively comprise a top flat plate and an L-shaped side plate which is integrally formed or fixedly connected with the top flat plate, through holes are arranged on the top flat plate, which can be matched with the top contact 71 allowing the upper end of the side outgoing pole to pass through, so that the top contact is connected with or disconnected from the contact box 94 of the main bus bar, the L-shaped side plate is provided with L-shaped through holes to correspond to the movement of the lower contacts 72 provided at the end of the inclined section 73 and corresponding to the contact box of the bus bar 90, and the stroke of the L-shaped side plate is realized by the L-shaped through holes.

The front door plate and the rear door plate can perform translation in any direction according to specific working conditions, such as driven horizontal translation or vertical translation. When the connection is needed, that is, the top contact 71 is conducted with the contact box 94 of the main bus, and the lower contact 72 is conducted with the contact box of the bus bar 90, that is, the terminal post on the pallet is conducted with the main bus and the bus bar, the front door panel and the rear door panel on the side are driven to be located at positions corresponding to the front and the rear of the through hole, at this time, the top contact and the lower contact on the terminal post penetrate through the overlapped through holes on the front door panel and the rear door panel to be connected with the main bus or the bus bar, when the connection is needed, that is, the top contact is disconnected with the main bus, and the lower contact and the bus bar are disconnected, the front door panel and the rear door panel are driven to move to stagger the through holes to seal the space where the main bus and the bus bar are located, that is, the through holes on the front door panel and the rear door. The front door plate and the rear door plate are arranged at intervals and are stainless steel plate bodies or insulating plates.

The side outgoing pole can be disclosed in chinese patent CN106024499A, and is not repeated herein.

The invention wraps the bus bar in the insulator, uses the insulator to position and insulate the bus bar, improves the use safety, and the bus bar is directly connected with the wire inlet end and the wire outlet end, such as integrally formed or welded with the bus bar, reduces the threaded connection, reduces the insulation processing difficulty of the connection, especially pours the bus bar after connecting with the wire inlet end and the wire outlet end, naturally shields the connection, reduces the post processing difficulty, and improves the reliability. The invention sets the actuating mechanism on the lifting supporting plate, fully utilizes the height space, simplifies the actuating mechanism, adopts the front door plate and the rear door plate which are led to move and are arranged at intervals front and back, adopts the form of stacking front and back, effectively saves the design space of a valve, realizes the miniaturization of the actuating mechanism, has reasonable structure, realizes the corresponding overlapping or staggering of the through holes by utilizing the action control of the intermittent driving translation of the front door plate and the rear door plate by the handcart, effectively ensures the safety, realizes the conciseness and has reliable action.

The actuating mechanism is arranged on the lifting supporting plate, so that the height space is fully utilized, the action mechanism is simplified, the synchronous driving of the front door plate and the rear door plate to be driven is realized by utilizing the linkage of the lifting mechanism and the front door plate and the rear door plate, the integral design is convenient, and the use safety is particularly improved. The front door plate and the rear door plate which move in the same direction and are arranged at intervals in the front-back direction are adopted, the front-back stacking and translation mode is adopted, the design space of the valve is effectively saved, the miniaturization is realized, the structure is reasonable, the synchronous and asynchronous action control of the front door plate and the rear door plate is utilized, the corresponding overlapping or staggering of the through holes is realized, the safety is effectively guaranteed, the realization is simple, and the action is reliable.

Specifically, the insulator includes a wire inlet end 810 and a wire outlet end 820 that are angled with respect to the wire inlet end and the wire outlet end. The included angle is an acute angle, a right angle or a straight angle, and the shape of the busbar and the insulator can be any adaptive shape so as to improve the field adaptability of the busbar and the insulator.

Taking the incoming line end 810 and the outgoing line end 820 arranged at a right angle as an example, the width of the outgoing line end 820 is greater than that of the incoming line end, creepage walls 821 are formed on two sides, the outgoing line end 85 is arranged on a connection panel 822 between the two creepage walls, a step or an inclined surface is formed on the connection panel, and the outgoing line end is correspondingly arranged on the step surface or the inclined surface.

Adopt the great leading-out terminal of width and set up the creepage wall in both sides, when improving insulating nature, because increased the installation space of leading-out terminal, be convenient for operate when being connected with the cable electricity, improve the convenience in use. Particularly, the steps are arranged, and the steps protruding forwards from bottom to top in sequence provide larger operation space and adaptability for subsequent installation of cables. Meanwhile, in order to improve the insulativity of the three busbars at the bending position, the busbar 83 on the inner side is bent inwards in a step shape, the bending position of the busbar 82 in the middle is arranged in an inclined mode, the busbar 81 on the outer side is bent at a right angle, the three are matched, and the whole size is reduced while the insulation distance between every two busbars is guaranteed.

Specifically, for with the internal positioning frame location installation of cabinet the insulator the installation side that corresponds with positioning frame be formed with the caulking groove 87 that corresponds with positioning frame's support body, utilize the cooperation of caulking groove and support body, can guarantee that the installation back inboard plane is level and smooth relatively, reduces the space and occupies, simultaneously the insulator on the fixed mounting hole that is provided with so that with positioning frame bolted connection.

Preferably, a groove 88 is formed between the opening sides of the two adjacent contact boxes, a connecting bolt is arranged on the bottom surface of the groove, and the groove type design is adopted, so that the creepage distance is increased, and the depth of the contact box is reduced. Meanwhile, in order to be matched with a contact box with a large depth, a notch 89 is formed on the side surface of the opening side of the contact port and the side surface of the pole so that the movable contact of the pole can be inserted into and electrically connected with the movable contact. The outer surface of the contact box is covered with a layer of conductive material or semiconductor material to improve the electromagnetic interference resistance and reduce the electromagnetic interference to the outside when the moving contact and the static contact are connected or disconnected.

Particularly, lift coordinated type valve device be used for dual power supply unit, be provided with actuating mechanism etc. respectively on the layer board, actuating mechanism be used for the intercommunication or break off with main bus's being connected, if for circuit breaker etc. simultaneously, for reinforcing support intensity, the vertical portion of layer board and drive beam be the L type, set up simultaneously in the lower part or both sides and set up the reinforcing plate in order to improve the bearing capacity, guarantee stability and intensity.

The execution mechanism is arranged on a lifting supporting plate, and meanwhile, a walking groove 21 is arranged on the supporting plate for guiding the handcart to run. Make full use of high surplus space, effectively reduced the requirement of the vertical degree of depth of cabinet body, improved its environmental suitability, simplified actuating mechanism, moreover, for actuating mechanism and rather than linkage from top to bottom when guaranteeing that this layer board goes up and down, actuating mechanism fixed the setting on the handcart layer board both sides or tip be provided with spacing portion 40, use in this over-and-under type dual power supply unit to be close to the operator side as the back to keep away from the operation side and be preceding, the trailing flank of spacing portion for the side inclined plane that the side is outstanding forward that goes up, the handcart on be formed with spacing portion matching's butt joint portion 50, the leading flank of butt joint portion be with the inclined plane that corresponds domatic. The limiting portion and the butt joint portion are provided with the mechanisms which are mutually connected in an inserting mode, continuous interference can be formed on a vertical surface while accurate positioning can be effectively achieved, the handcart can be pulled downwards to move downwards synchronously, smoothness of action is improved, meanwhile, the limiting portion of the supporting plate is directly connected with a grounding point of the lifting mechanism through a lead, grounding protection requirements are met, and operation safety is guaranteed.

Preferably, in order to ensure the reliability of the contact conduction between the inclined plane and the slope surface, a cavity is formed on the inclined plane, a conductive plate 42 is arranged in the cavity, and a spring 41 is arranged at the back of the conductive plate to support the conductive plate. And a guide mechanism is arranged between the two sides of the current-conducting plate and the limiting part, such as the matching of a connecting lug hole and a pin column. The top of the contact spring is held and the conducting plate as the contact can protrude out of the inclined plane and can be flushed with the inclined plane, so that the inclined plane and the slope can keep good conducting contact under normal conditions, when accidents such as vibration and inclination occur, if a gap occurs between the limiting part and the butt joint part, the top of the spring is held and still can keep the electric conduction between the limiting part and the butt joint part and has very small contact resistance, and effective grounding can be guaranteed.

Specifically, elevating system include driven relative support 1 erect roof beam 11 vertical lift's layer board 2, articulate two support arms 3 that are splayed arrangement in layer board below middle part, with support arm 3 lower extreme cooperation be connected and with the horizontal part 12 fixed connection's of support bottom track 13 to and be used for with two support arm lower extreme locking prevent its detached locking mechanism. The lower end of the support arm can be matched with the bottom rail in various modes, such as the matching of an embedded roller and a groove, and the movement of the lower end of the support arm relative to the bottom rail along the axial direction of the bottom rail can be realized.

The lower end of the support arm is provided with a sliding block 31 matched with the bottom rail so as to realize sliding fit of the lower end of the support arm relative to the bottom rail, if the bottom rail is a sliding rail, the lower end of the support arm is hinged with the sliding block matched with the sliding rail, the lower end of the support arm is connected with the lower end of the support arm in a matched mode through the bottom rail, when the support plate is lifted, the lower ends of the two support arms move oppositely and synchronously, namely are folded or separated, and when the support plate is lifted to a preset height, the lower end of the support plate is locked through a locking mechanism.

Preferably, the device further comprises an elongated ratchet 14 fixedly arranged on the sliding block and extending along the track direction, a ratchet finger 32 which is rotatably fixed relative to the bracket and corresponds to the ratchet, and a control rod 33 which can drive the ratchet finger to synchronously turn inwards or outwards to keep or separate the ratchet from contact with the ratchet. The ratchet finger and the ratchet cooperate to lock the support arm in real time when the lifting mechanism is lifted, namely the ratchet finger and the ratchet form a one-way locking mechanism. The ratchet finger ratchet mechanism is similar to ratchet wheel ratchet, the ratchet finger of the invention is equivalent to the ratchet in the ratchet wheel ratchet, and the ratchet in the invention is equivalent to the ratchet wheel after linear expansion in the ratchet wheel ratchet.

Specifically, the center of the bracket is taken as the inner side, the two ends are taken as the outer sides, and the ratchet is positioned above the ratchet finger, for example, the outer side surface of the tooth of the ratchet is a vertical surface or an inward inclined surface, that is, the upper end of the outer side surface inclines inward, and the inner side surface is an arc surface or a slope surface. The inner side surface of the ratchet finger is a slope surface or a cambered surface so that teeth of the ratchet teeth sweep over the inner side surface when the ratchet finger descends, the outer side surface corresponds to the teeth of the ratchet teeth so that the teeth can be inserted into the teeth, for example, the outer side surface of the ratchet finger is a plane, the ratchet finger is arranged on the support through the rotating shaft, and an elastic mechanism such as a coil spring is arranged between the ratchet finger and the support so as to keep the ratchet finger and the outer side surface of the teeth of the ratchet teeth in fit contact. The length of the ratchet is not more than the stroke of the support arm relative to the track so that the ratchet fingers at two ends are reset in a rotating mode, and the whole protection can be achieved, and of course, half or one third of the tail end stroke can be adopted so as to provide protection and locking when the highest point or the adjacent highest point is achieved. Preferably, the ratchet teeth are respectively provided with an arc-shaped concave groove outside the tooth root of the outermost ratchet tooth and inside the tooth root of the innermost ratchet tooth so that the ratchet finger can rotate.

Namely, when the ratchet finger is arranged at the highest lifting position, the middle part of the track is taken as the center, the teeth at the outermost ends of the two ratchets are just meshed with the ratchet finger, and the effective contact and lamination of the ratchets and the support are ensured by the coil spring between the ratchets and the support, so that the stable support is realized. Meanwhile, the ratchet can be effectively ensured to turn outwards when the driving rod is driven, the contact is relieved, the descending is convenient, in order to realize that the control rod drives the ratchet fingers to turn outwards synchronously, the upper part and the lower part of the rotating shaft corresponding to the two ratchet fingers are respectively provided with a long groove, the control rod is linked with the long grooves through a deflector rod, the synchronous inward or outward rotation control of the control rod on the ratchet fingers can be realized, meanwhile, a guide bin is also arranged between the control rod and the support, and a reset spring is arranged between the guide bins, so that the quick resetting is ensured.

In the lifting process of the supporting plate, the ratchets move along with the sliding blocks 31 matched with the bottom rail, the ratchet fingers matched with the ratchets are rotatably and fixedly arranged on one side of the bottom rail 13 and keep interference with the ratchets, the ratchets and the ratchet fingers realize real-time self-locking, and the supporting effect of the support arms 3 arranged in a splayed manner in the lifting process is ensured. When the supporting plate is lifted to a proper position, the locking mechanism acts and locks the two supporting arms to prevent the two supporting arms from being separated, and the locking mechanism, the ratchet and the ratchet finger realize locking double protection. Utilize two support arms that are splayed arrangement to support the layer board, effectively slow lift actuating mechanism's pressure, the holding power is strong and stable, guarantees simultaneously that the displacement can not take place, takes place big short-circuit current or be used for having the occasion of vibrations to guarantee to support absolutely reliable and stable.

In order to realize the lifting of the supporting plate, the driving mechanism of the supporting plate 2 comprises a driving rod 4, a speed changer 5 in transmission connection with the driving rod, such as a worm gear, a lifting screw 6 in transmission connection with an output shaft of the speed changer, a driving beam 20 on which a lifting nut matched with the lifting screw is arranged, and a guide mechanism correspondingly arranged between the driving beam and the support, wherein the driving rod is driven by a hand wheel or a motor, the driving rod can be horizontally arranged or vertically arranged, and the like, the driving rod is combined with the speed changer, the stable lifting of the supporting plate is realized by the matching of the lifting screw and the lifting nut, the guide mechanism is a guide rail slider mechanism arranged between the driving beam and the support, and the linear guide rail is used for providing high-precision guide, so that the running stability is ensured.

The supporting plate is fixedly connected with the driving beam, the driving beam is L-shaped, a horizontal table protrudes from the side face of the bottom of the driving beam, and the lifting nut is fixed on the horizontal table. The L-shaped driving beam is adopted, the bearing capacity is strong, the supporting plate is transversely arranged on the driving beam, and the stability and the strength are ensured

When the ratchet-ratchet finger is used for realizing real-time locking, the locking mechanism comprises a rotating rod extending along the direction of the bottom track and at least one pair of rod-shaped or block-shaped locking parts arranged on the rotating rod, and the locking or releasing of the locking parts on the lower end of the support arm can be realized by rotating the rotating rod. The rotary rod can set up in orbital one side or middle part below of end, directly unscrew the rotary rod when the vertical direction of layer board removes, move preset position when the layer board, with the rotary rod gyration, with the lower extreme limitation of two support arms in the middle of two locking portions, constitute stable spacing promptly, can effectively solve lead screw nut and can not the good circumstances of auto-lock when having vibrations. And through the arrangement of a plurality of pairs of locking parts, the locking part can be fixed at any set height position, so that the on-site maintenance or part replacement and the like are facilitated.

The translational driving type protection mechanism comprises a linkage pin 200 arranged on one side of the supporting plate, a sector gear 300 which is rotatably and fixedly arranged on a bracket through a rotating shaft 320 and is provided with a guide groove 310 matched with the linkage pin, and a rack 110 which is engaged with the sector gear and is fixedly connected with the translational opening-closing type insulation valve. The guide groove comprises a front sliding section and a middle linkage section which are communicated and in smooth transition, and preferably further comprises a rear linkage section, and the action part can drive the sector gear to rotate only when the linkage pin is located in the middle linkage section. The specific shape of the guide groove is matched with the moving direction and the moving size of the conductive element, so that any intermittent movement can be realized, and the shape of the guide groove can be in any shape such as an L shape, a straight line shape, an arc line shape or various curves.

The translational open-close type insulation valve comprises a front door plate 91 and a rear door plate 92 which are arranged in parallel and driven to translate synchronously and asynchronously or reversely, the front door plate and the rear door plate are respectively provided with through holes 93 which correspond to the main bus and the bus bar and allow the contact to pass through, wherein the front door panel and the rear door panel are in a Z-shaped structure integrally and respectively comprise a top flat plate and an L-shaped side plate which is integrally formed or fixedly connected with the top flat plate, through holes are arranged on the top flat plate, which can be matched with the top contact 71 allowing the upper end of the side outgoing pole to pass through, so that the top contact is connected with or disconnected from the contact box 94 of the main bus bar, the L-shaped side plate is provided with L-shaped through holes to correspond to the movement of the lower contacts 72 provided at the end of the inclined section 73 and corresponding to the contact box of the bus bar 90, and the stroke of the L-shaped side plate is realized by the L-shaped through holes. The front door plate and the rear door plate can perform translation in any direction according to specific working conditions, such as driven horizontal translation or vertical translation. When the connection is needed, that is, the top contact 71 is conducted with the contact box 94 of the main bus, and the lower contact 72 is conducted with the contact box of the bus bar 90, that is, the terminal post on the pallet is conducted with the main bus and the bus bar, the front door panel and the rear door panel on the side are driven to be located at positions corresponding to the front and the rear of the through hole, at this time, the top contact and the lower contact on the terminal post penetrate through the overlapped through holes on the front door panel and the rear door panel to be connected with the main bus or the bus bar, when the connection is needed, that is, the top contact is disconnected with the main bus, and the lower contact and the bus bar are disconnected, the front door panel and the rear door panel are driven to move to stagger the through holes to seal the space where the main bus and the bus bar are located, that is, the through holes on the front door panel and the rear door. The front door plate and the rear door plate are arranged at intervals and are stainless steel plate bodies or insulating plates.

The front door plate and the rear door plate can perform translation in any direction according to specific working conditions, such as driven horizontal translation or vertical translation.

The invention adopts two-section or multi-section design of the guide groove, realizes the intermittent drive of the supporting plate to the part to be driven, provides translational power by utilizing a high-precision driving mechanism of the sector gear and the rack, and can be effectively used in the opening process of the valve, thereby saving the space of the valve, realizing miniaturization, reasonable structure, simple realization and reliable action.

Specifically, for realizing the above-mentioned drive, sector gear include the big pitch circle radius sector gear and the small pitch circle radius sector gear of coaxial setting, preceding door plant and back door plant respectively with big pitch circle radius sector gear and the meshing rack of being connected of small pitch circle radius sector gear with corresponding fixed connection in order to realize the synchronous drive of syntropy. The sector gears with two different pitch circle radiuses are utilized to realize the synchronous movement of the front door plate and the rear door plate in the same direction and realize respective translation driving.

As another specific embodiment, the adjacent sides of the front door panel and the rear door panel are provided with linkage racks, a transmission gear meshed with the linkage racks is arranged between the linkage racks, and the front door panel or the rear door panel is provided with a rack meshed and connected with the sector gear. One of the front door plate or the rear door plate is driven by a group of sector gears and racks, and then the other door plate is linked with the sector gears and the racks, so that larger action performance in a small stroke can be realized, a foundation is provided for different types of movable translation modes, and the staggered closed design can be adopted for occasions with low voltage in a small space.

Specifically, in order to reduce the friction between the linkage pin and the guide groove, the linkage pin is rotatably arranged on the supporting plate or a shaft sleeve which can rotate relative to the linkage pin is arranged at the contact part of the linkage pin and the guide groove, namely, the relative sliding between the guide groove and the linkage pin is converted into rolling, and the action fluency is ensured.

The movable door plate structure adopts the front door plate and the rear door plate which are communicated with each other and are arranged at intervals in the front-back direction, adopts a front-back stacking mode, effectively saves the design space of the valve, realizes miniaturization, has a reasonable structure, realizes corresponding overlapping or staggering of through holes by utilizing the action control of the front door plate and the rear door plate which are synchronous in the same direction or synchronous in the reverse direction or asynchronous in the reverse direction, effectively ensures the safety, and is concise to realize and reliable in action.

Preferably, in order to improve the mobility of the front door panel and the rear door panel, a moving support mechanism is respectively arranged between the front door panel and the support and between the rear door panel and the support. As shown in the figures, the moving support mechanism includes a slide rail 96 fixedly connected to the front door panel or the rear door panel, and a plurality of guide rollers or guide wheels 98 correspondingly disposed on the vertical beam 11 of the bracket in two rows, and the guide rollers or guide wheels clamp and position the slide rail therein. For example, the front door plate and the rear panel horizontally move, the guide rollers or the guide wheels are correspondingly arranged on the upper side and the lower side of the sliding rail, meanwhile, guide grooves corresponding to the guide rollers or the guide wheels 98 are arranged on the upper plane and the lower plane of the sliding rail, the guide rails are clamped and positioned by adopting two groups of freely rotatable guide rollers or guide wheels, and the guide grooves and the guide rollers or the guide wheels are guided and positioned in an embedded manner, so that the guide and the constraint are realized for the movement of the guide rollers or the guide wheels, the supporting effect is good, the movement is stable, and the normal operation.

Of course, in order to realize the translation of the front door plate and the rear door plate, a guide rail sliding block mechanism can be used, namely, the moving support mechanism comprises a linear guide rail fixedly arranged on the bracket and a plurality of sliding blocks which are correspondingly fixedly connected with the front door plate or the rear door plate and are matched with the linear guide rail.

The specific steps of use are as follows,

1) the supporting plate is positioned at the lowest position, the handcart is pushed to move forwards along the supporting plate until the limiting part limits the butt joint part and locks the handcart relative to the supporting plate; the connection of the ground wires is also completed, and meanwhile, the consistency in the up-and-down movement process is ensured by the release of the inclined plane;

2) the supporting plate is driven to rise, the lower end of the supporting arm is synchronously folded along the bottom rail, and the teeth of the ratchet sweep the ratchet fingers one by one; in the lifting process, the ratchet fingers and the ratchets provide locking support in real time to ensure that the falling phenomenon and the like can not occur,

3) the supporting plate is lifted to the highest position, the driving is stopped, the ratchet finger is positioned at the outer side of the outermost tooth of the ratchet and is tightly propped, and the rotating rod is rotated to lock the lower end of the supporting arm by using the locking part; the two are locked in a double way, the locking stability is improved,

4) when the ratchet is required to be lowered, the rotating rod is rotated to release the locking part, and meanwhile, the operating rod is pushed to enable the ratchet to rotate outwards to release the engagement with the ratchet; at this time, the ratchet fingers and the ratchet teeth do not contact with each other,

5) the supporting plate is driven to descend to the low position, the locking of the corresponding supporting plate is released, and the handcart is pulled out for operations such as maintenance and the like.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (9)

1. A vertical lifting high-safety dual-power supply device is characterized by comprising,

the middle part is provided with a bracket of a vertical beam,

the bus bar integrated insulated contact box is fixedly arranged on one side of the top of the bracket, and comprises three bus bars which are arranged at intervals and are coated by an insulator, wire inlet ends and wire outlet ends which are respectively and correspondingly arranged at two ends of the bus bars and the outer ends of which are exposed out of the insulator, and contact boxes which are correspondingly arranged with the wire inlet ends and are integrally formed with or fixedly connected with the insulator in a one-to-one correspondence with the wire outlet pole columns on the side, wherein the insulator is fixedly arranged on one side of the bracket through a positioning frame;

the lifting mechanisms are arranged on two sides of a vertical beam of the support and comprise a support plate which is driven to vertically lift relative to the support, two support arms which are hinged below the support plate and are arranged in a splayed shape, a bottom rail which is matched and connected with the lower ends of the support arms and is fixedly connected with the support, and a locking mechanism which is used for locking the lower ends of the two support arms to prevent the two support arms from separating;

the handcart is arranged on the supporting plate and bears a plurality of side outgoing line poles, limiting parts are arranged on two sides or end parts of the supporting plate, the rear side surface of each limiting part is an inclined surface with the upper side protruding forwards, a butt joint part matched with the limiting parts is formed on the handcart, the front side surface of each butt joint part is a slope surface corresponding to the inclined surface, and the limiting parts are directly connected with a grounding point of the lifting mechanism through a lead;

the translation driving type protection mechanism comprises a linkage pin which is fixedly arranged on one side of the supporting plate and extends horizontally, a sector gear which is rotatably and fixedly arranged on a bracket and is provided with a guide groove matched with the linkage pin, and a rack which is engaged with the sector gear and is fixedly connected with the insulating valve,

the insulating valve comprises a front door plate and a rear door plate which are arranged in parallel and are driven by racks fixedly connected with the insulating valve to do synchronous or anisotropic translation in the same direction, through holes corresponding to main buses are respectively formed in the front door plate and the rear door plate, the front door plate and the rear door plate are driven to be located in positions corresponding to the front and the rear of the through holes when the insulating valve is opened, the front door plate and the rear door plate are driven to do asynchronous and unidirectional movement when the insulating valve is closed, the through holes of the front door plate and the rear door plate are staggered to seal the through holes by utilizing the non-porous positions, the front door plate and the rear door plate are driven to horizontally or vertically translate, and a moving support mechanism is arranged between the front door plate and the support.

2. The vertically-lifting type high-safety dual-power supply device as claimed in claim 1, wherein the lower end of the supporting arm is provided with a sliding block matched with the bottom rail to realize sliding fit of the lower end of the supporting arm relative to the bottom rail, the locking mechanism comprises an elongated ratchet fixedly arranged on the sliding block and extending along the rail direction, a ratchet finger rotatably fixed relative to the bracket and corresponding to the ratchet tooth, and an operating rod capable of driving the ratchet finger to synchronously turn inwards or outwards to keep or separate the ratchet finger from contacting with the ratchet tooth.

3. The vertically-lifting type high-safety dual-power-supply power supply device as claimed in claim 1, wherein the locking mechanism includes a rotating rod extending along the direction of the bottom rail, and at least one pair of locking portions disposed on the rotating rod, and the locking or releasing of the locking portions to the lower ends of the supporting arms can be realized by rotating the rotating rod.

4. The vertical lifting type high-safety dual-power supply device as claimed in claim 1, wherein the sector gear comprises a large-pitch radius sector gear and a small-pitch radius sector gear which are coaxially arranged, the rack which is respectively meshed with the large-pitch radius sector gear and the small-pitch radius sector gear on the front door panel and the rear door panel is fixedly connected with the corresponding rack to realize synchronous driving in the same direction, the guide groove comprises a front sliding section and a middle linkage section, the actuating part can drive the sector gear to rotate when the linkage pin is positioned in the middle linkage section, and the sector gear cannot be driven to rotate at the front sliding end.

5. The vertically-lifting high-safety dual-power-supply power supply device as claimed in claim 1, wherein a caulking groove corresponding to the frame body of the positioning frame is formed on the mounting side of the insulator corresponding to the positioning frame.

6. The vertically-lifting type high-safety dual-power supply device as claimed in claim 5, wherein the movable supporting mechanism includes a sliding rail fixedly connected to the front door panel or the rear door panel, and a plurality of guide rollers or guide wheels correspondingly disposed in two rows and disposed on the bracket, and the guide rollers or guide wheels clamp and position the sliding rail therein.

7. The vertically-lifting type high-safety dual-power-supply power supply device as claimed in claim 5, wherein the movable supporting mechanism comprises a linear guide rail fixedly arranged on the support, and a plurality of sliding blocks correspondingly fixedly connected with the front door panel or the rear door panel and matched with the linear guide rail.

8. The vertically-lifting type high-safety dual-power supply device as claimed in claim 1, wherein the driving mechanism of the front door panel and the rear door panel comprises racks fixedly connected with or integrally formed with the front door panel or the rear door panel respectively and extending along the moving direction, gears arranged corresponding to the racks and having different diameters or engaged with the two racks simultaneously, and a driving part for driving the gears to rotate.

9. The control method of the vertical lifting type high-safety dual-power-supply device according to claim 1, characterized by comprising the following steps,

1) the supporting plate is positioned at the lowest position, and the handcart is pushed to move forwards along the supporting plate until the handcart is limited and is locked relative to the supporting plate; at the moment, the through holes of the front door plate and the rear door plate leave the main bus and the contact box, and the front door plate and the rear door plate stop driving and keep a closed state when the through holes are staggered back and forth;

2) the supporting plate is driven to rise, the lower end of the supporting arm is synchronously folded along the bottom track, teeth of the ratchets sweep the ratchet fingers one by one, and meanwhile, the linkage pin drives the sector gear to rotate and drives the front door plate and the rear door plate to be driven to synchronously and asynchronously translate in the same direction or reversely in the rising process of the supporting plate, and the through holes are enabled to vertically correspond to form a channel allowing the moving contact to pass through;

3) the supporting plate stops driving after being lifted to the highest position, the ratchet finger is positioned on the outer side of the outermost tooth of the ratchet and tightly pushed, and the rotating rod is rotated to lock the lower end of the supporting arm by using the locking part;

4) when the ratchet is required to be lowered, the rotating rod is rotated to release the locking part, and the operating rod is pushed to enable the ratchet to rotate outwards to release the engagement with the ratchet;

5) the driving supporting plate is lowered to a low position, and meanwhile, the front door plate and the rear door plate are restored to a closed state in the lowering process, the locking of the opposite supporting plate is released, and the handcart is pulled out.

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