CN107147031B

CN107147031B - Lifting linkage type dual-power supply device and control method

Info

Publication number: CN107147031B
Application number: CN201710020576.8A
Authority: CN
Inventors: 王平; 王金杰
Original assignee: Tianjin City Chi Chi Electrical Equipment Co Ltd
Current assignee: Tianjin City Chi Chi Electrical Equipment Co Ltd
Priority date: 2017-01-12
Filing date: 2017-01-12
Publication date: 2020-01-17
Anticipated expiration: 2037-01-12
Also published as: CN107147031A

Abstract

The invention discloses a lifting linkage type dual-power-supply device, which comprises a bracket, a lifting mechanism and a translation driving mechanism, wherein the middle part of the bracket is provided with a vertical beam, the lifting mechanism and the translation driving mechanism are correspondingly arranged on two sides of the vertical beam of the bracket, a handcart with an actuating mechanism loaded on the handcart is arranged on a supporting plate, 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 part is formed on the handcart, the front side surface of the butt joint part is a slope surface corresponding to the inclined surface, and the limiting part is directly connected with a grounding point of the lifting mechanism through a lead. The invention arranges the actuating mechanism on the lifting supporting plate, fully utilizes the height space, simplifies the action mechanism, realizes the synchronous driving of the translation part to be driven by utilizing the linkage of the lifting mechanism and the translation driving mechanism, is convenient for integral design and especially improves the use safety.

Description

Lifting linkage type dual-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 lifting linkage type 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.

At present, the demand of space for supplying power is smaller and smaller, but the load and the number of power supply loops of the power supply are in a trend of rapidly increasing, so that the number of load loops is increased in a limited power supply space, and the volume of a single switch cabinet is required to be reduced in a limited space to increase the number of the switch cabinets. Therefore, it is necessary to develop an actuating mechanism capable of reducing the size of the switch cabinet. Moreover, the grounding mechanism of the existing power supply device is generally arranged independently, so that grounding safety accidents are easily caused.

Disclosure of Invention

The invention aims to provide a lifting linkage type 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 lifting linkage type dual-power supply device comprises a support, wherein a vertical beam is arranged in the middle of the support, a lifting mechanism and a translation driving mechanism are correspondingly arranged on two sides of the vertical beam of the support, the lifting mechanism comprises a support plate which is driven to vertically lift, two support arms which are arranged in a splayed manner are hinged below the support plate, a bottom rail which is matched with the lower ends of the support arms and is connected with the lower ends of the support arms and is fixedly connected with the support, a locking mechanism which is used for locking the lower ends of the two support arms to prevent the lower ends of the two support arms from being separated from the support, the translation driving mechanism comprises a linkage pin which is fixedly arranged on one side of the support plate and horizontally extends, a sector gear which is rotatably and fixedly arranged on the support and is provided with a guide groove matched with the linkage pin, a rack which is meshed with the sector gear and is fixedly connected with a translation part to be driven, and a handcart, the handcart supporting device is characterized in that the two sides or the end part of the supporting plate are provided with limiting parts, the rear side face of each limiting part is an inclined plane with an upper side protruding forwards, a butt joint part matched with the limiting parts is formed on the handcart, the front side face of each butt joint part is a slope surface corresponding to the inclined plane, and the limiting parts are directly connected with a grounding point of the lifting mechanism through a lead.

The to-be-driven translation part is two independent parts which are arranged at the top of the vertical beam and can be driven to translate, the sector gear comprises a large-pitch circle radius sector gear and a small-pitch circle radius sector gear which are coaxially arranged or independently arranged, and two racks which are respectively meshed and connected with the large-pitch circle radius sector gear and the small-pitch circle radius sector gear are respectively and fixedly connected with the corresponding independent parts to realize synchronous driving in the same direction.

The translation part to be driven is two independent parts which are arranged at the top of the vertical beam and driven to translate, linkage racks are arranged on the adjacent sides of the two independent parts, a transmission gear meshed with the linkage racks simultaneously is arranged between the linkage racks, and one independent part is provided with a rack meshed and connected with the sector gear.

The driving mechanism of the supporting plate comprises a driving rod, a lifting screw rod in transmission connection with the driving rod, a driving beam provided with a lifting nut matched with the lifting screw rod, and a guide mechanism correspondingly arranged between the driving beam and the support, wherein the supporting plate is fixedly connected with the driving beam.

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.

A concave cavity is formed on the inclined surface, a conductive plate is arranged in the concave cavity, and the back of the conductive plate is provided with a spring for supporting the conductive plate.

The guide groove comprises a front sliding section and a middle linkage section, the action part can drive the sector gear to rotate when the linkage pin is positioned in the middle linkage section, and the front sliding end cannot drive the sector gear to rotate.

The control method of the lifting linkage type dual-power-supply device is characterized by comprising the following steps of,

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, and at the moment, the translation part to be driven is in a first state;

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 translation part to be driven to move to a second state in the rising process of the supporting plate,

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 props up after the translation part is driven to return to the first state, and the rotating rod is rotated to lock the lower end of the supporting arm by utilizing the locking part;

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;

5) the supporting plate is driven to descend to a low position, the locking of the corresponding supporting plate is released, and the handcart is pulled out.

In the step 2), the poking of the sector gear by the linkage pin comprises the following steps,

1) when the linkage pin moves to the first position, the transmission pin is matched with the guide groove to drive the translation part to be driven to translate through the transmission of the sector gear and the rack in the process;

2) the linkage pin moves to the second position, during which the transmission pin following the action mechanism moves in the guide groove but does not drive the sector gear to rotate,

the poking of the sector gear by the linkage pin in the step 5) comprises the following steps,

1) when the linkage pin moves to the second position, the transmission pin following the action mechanism moves in the guide groove but does not drive the sector gear to rotate,

2) the linkage pin moves to the first position, and the transmission of the sector gear and the rack is utilized to drive the translation part to be driven to translate through the matching of the transmission pin and the guide groove.

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

the invention arranges the actuating mechanism on the lifting supporting plate, fully utilizes the height space, simplifies the action mechanism, realizes the synchronous driving of the translation part to be driven by utilizing the linkage of the lifting mechanism and the translation driving mechanism, is convenient for integral design and especially improves the use safety. The limiting part of the supporting plate and the handcart plug-in part are provided with a contact and a pressure spring which can complete the conductive function, so that the contact with a small contact resistance can be ensured. The supporting plate limiting part is directly connected with the grounding point of the lifting mechanism by a lead, so that the grounding protection requirement is met, and the operation safety is ensured.

Drawings

Fig. 1 is a schematic structural diagram of the lifting mechanism of the present invention.

FIG. 2 is a side view of the structure of FIG. 1;

FIG. 3 is a schematic view of the ratchet and ratchet finger action;

FIG. 4 is a schematic structural view of the limiting portion and the abutting portion;

fig. 5 is a schematic structural view of the translation drive mechanism.

Figure 6 is an enlarged view of part a of figure 3,

fig. 7 is a partially enlarged view of the portion B shown in fig. 3.

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 figures 1-7, the lifting linkage type dual-power supply device of the invention comprises a bracket, a lifting mechanism and a translation driving mechanism, wherein the middle part of the bracket is provided with a vertical beam, the lifting mechanism and the translation driving mechanism are correspondingly arranged at two sides of the vertical beam 11 of the bracket, the lifting mechanism and the translation driving mechanism are arranged in a one-to-one correspondence manner, the lifting mechanism comprises a support plate driven to vertically lift, two support arms which are hinged below the support plate and are arranged in a splayed manner, a bottom track which is matched and connected with the lower ends of the support arms and is fixedly connected with the bracket, and a locking mechanism which is used for locking the lower ends of the two support arms to prevent the two support arms from being separated, the translation driving mechanism comprises a linkage pin which is fixedly arranged at one side of the support 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, the handcart is characterized in that a handcart with an actuating mechanism is arranged on the supporting plate, limiting parts are arranged on two sides or end parts of the supporting plate, the rear side face of each limiting part is an inclined plane with an upper side protruding forwards, a butt joint part matched with the limiting parts is formed on the handcart, the front side face of each butt joint part is a slope face corresponding to the inclined plane, and the limiting parts are directly connected with a grounding point of the lifting mechanism through a lead.

The invention arranges the actuating mechanism on the lifting supporting plate, fully utilizes the height space, simplifies the action mechanism, realizes the synchronous driving of the translation part to be driven by utilizing the linkage of the lifting mechanism and the translation driving mechanism, is convenient for integral design and especially improves the use safety.

Particularly, lift coordinated type dual power supply unit 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 in the lower part simultaneously or both sides 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 vertical lift's layer board 2, articulate two support arms 3 that are splayed arrangement in layer board below middle part, with 3 lower extremes of support arm cooperate 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 mechanical system. 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 translation driving mechanism of the present invention comprises a linkage pin 200 disposed at one side of the supporting plate, a sector gear 300 rotatably fixed on the bracket through a rotating shaft 320 and provided thereon with a guide groove 310 matching with the linkage pin, and a rack 110 engaged with the sector gear and fixedly connected with a translation portion 100 to be driven, such as a shutter. 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 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.

As a specific implementation mode, the translation portion to be driven is two independent components, the sector gear includes a large pitch circle radius sector gear and a small pitch circle radius sector gear which are coaxially arranged, and two racks respectively engaged with the large pitch circle radius sector gear and the small pitch circle radius sector gear are fixedly connected with the corresponding independent components to realize synchronous and asynchronous driving. Two independent parts are realized by utilizing two sector gears with different pitch circle radiuses, and if two shielding door plates move synchronously in the same direction, respective translation driving is realized.

As another specific embodiment, the translation portion to be driven is two independent components, the adjacent sides of the two independent components are provided with linked racks, a transmission gear meshed with the linked racks simultaneously is arranged between the linked racks, and one independent component is provided with a rack meshed and connected with the sector gear. One independent part is driven by a group of sector gears and racks, and the other independent part is linked with the sector gears and 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 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 bottom line is also completed at the moment, and meanwhile, the release of the inclined plane ensures the consistency in the up-and-down movement process; at this time, the translation part to be driven is in the first state,

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, the falling phenomenon and the like are guaranteed not to occur, meanwhile, the linkage pin drives the sector gear to rotate and drives the translation portion to be driven to move to the second state in the lifting process of the supporting plate, when the linkage pin moves and moves to the first position, the transmission pin which follows up with the action mechanism moves in the guide groove in the process but does not drive the sector gear to rotate, the linkage pin moves to the second position from the first position, and the translation portion to be driven is driven to translate by the aid of the transmission of the sector gear and the racks through the cooperation of the transmission pin and the guide groove in the process.

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; 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) driving the supporting plate to descend to a low position, reversely stepping in the synchronous step 2), and releasing the locking of the corresponding supporting plate after the driving translation part is recovered to the first state, and pulling out the handcart 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

1. A lifting linkage type dual-power supply device is characterized by comprising a support, a lifting mechanism and a translation driving mechanism, wherein the middle part of the support is provided with a vertical beam, the lifting mechanism and the translation driving mechanism are correspondingly arranged on two sides of the vertical beam of the support, the lifting mechanism comprises a driven vertical lifting supporting plate, two supporting arms which are hinged below the supporting plate and are arranged in a splayed manner, a bottom rail which is matched and connected with the lower ends of the supporting arms and is fixedly connected with the support, and a locking mechanism which is used for locking the lower ends of the two supporting arms to prevent the lower ends of the two supporting arms from being separated from each other, the locking mechanism comprises a rotary rod which extends along the direction of the bottom rail, and at least one pair of locking parts which are arranged on the rotary rod, and the rotary rod;

the translation driving 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 meshed with the sector gear and is fixedly connected with the translation part to be driven, wherein the translation part to be driven is a valve;

the handcart that bears the weight of actuating mechanism on the layer board on be provided with the handcart that bears actuating mechanism, layer board both sides or tip be provided with spacing portion, the trailing flank of spacing portion be the inclined plane that the side is outstanding forward, the handcart on be formed with spacing portion matching's butt joint portion, the leading flank of butt joint portion be with the inclined plane corresponding domatic, spacing portion pass through wire and elevating system's ground point direct electricity and link to each other the inclined plane be formed with the cavity in be provided with the current conducting plate, the current conducting plate back be provided with the spring in order to hold it in top.

2. The lifting linkage type 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 or independently arranged, and two racks respectively engaged with the large-pitch radius sector gear and the small-pitch radius sector gear are respectively fixedly connected with corresponding valves to realize synchronous and asynchronous driving.

3. The dual power supply unit of claim 1, wherein the adjacent sides of the two shutters are provided with linked racks, a transmission gear meshed with the linked racks simultaneously is arranged between the linked racks, and one of the independent parts is provided with a rack meshed with the sector gear.

4. The device as claimed in claim 1, wherein the driving mechanism of the supporting plate comprises a driving rod, a lifting screw rod in transmission connection with the driving rod, a driving beam on which a lifting nut matching with the lifting screw rod is arranged, and a guiding mechanism correspondingly arranged between the driving beam and the bracket, wherein the supporting plate is fixedly connected with the driving beam.

5. The device as claimed in claim 4, wherein the guiding slot comprises a front sliding section and a middle linking section, the actuating member can drive the sector gear to rotate when the linking pin is located at the middle linking section, and the sector gear cannot be driven to rotate at the front sliding section.

6. A lifting linkage type dual-power supply device is characterized by comprising a bracket, the middle part of which is provided with a vertical beam, the lifting mechanism and the translation driving mechanism are correspondingly arranged at two sides of the vertical beam of the bracket, the lifting mechanism comprises a supporting plate which is driven to vertically lift, two supporting arms which are hinged below the supporting plate and are arranged in a splayed shape, and a bottom track which is matched and connected with the lower ends of the supporting arms and is fixedly connected with the bracket, and a locking mechanism for locking the lower ends of the two support arms to prevent the two support arms from separating, wherein the lower ends of the support arms are provided with slide blocks matched with the bottom tracks to realize the sliding fit of the lower ends of the support arms relative to the bottom tracks, the locking mechanism comprises a long-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 bracket and corresponds to the ratchet, and the control rod can drive the ratchet fingers to synchronously turn inwards or outwards so as to keep or separate the ratchet fingers from being in contact with the ratchet;

7. The lifting linkage type dual-power-supply device as claimed in claim 6, wherein the sector gear comprises a large-pitch radius sector gear and a small-pitch radius sector gear which are coaxially or independently arranged, and two racks respectively engaged with the large-pitch radius sector gear and the small-pitch radius sector gear are respectively fixedly connected with corresponding valves to realize synchronous and asynchronous driving in the same direction.

8. The dual power supply unit of claim 6, wherein the adjacent sides of the two shutters are provided with linked racks, a transmission gear meshed with the linked racks simultaneously is arranged between the linked racks, and one of the independent parts is provided with a rack meshed with the sector gear.

9. The device as claimed in claim 6, wherein the driving mechanism of the supporting plate comprises a driving rod, a lifting screw rod in transmission connection with the driving rod, a driving beam on which a lifting nut matching with the lifting screw rod is arranged, and a guiding mechanism correspondingly arranged between the driving beam and the bracket, wherein the supporting plate is fixedly connected with the driving beam.

10. The device as claimed in claim 6, wherein the guiding slot comprises a front sliding section and a middle linking section, the actuating member can drive the sector gear to rotate when the linking pin is located at the middle linking section, and the sector gear cannot be driven to rotate at the front sliding section.

11. A control method of a lifting linkage type dual-power-supply device according to any one of claims 1 to 10, characterized by comprising the following steps,

5) and (3) driving the supporting plate to descend, wherein the process is opposite to that in the step 2), the translation part to be driven is recovered to the first state, the locking of the corresponding supporting plate is released, and the handcart is pulled out.

12. The control method as claimed in claim 11, wherein in the step 2), the striking of the sector gear by the interlocking pin comprises,