CN113548607A - Intelligent circuit breaker lifting maintenance platform truck - Google Patents
Intelligent circuit breaker lifting maintenance platform truck Download PDFInfo
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- CN113548607A CN113548607A CN202110819405.8A CN202110819405A CN113548607A CN 113548607 A CN113548607 A CN 113548607A CN 202110819405 A CN202110819405 A CN 202110819405A CN 113548607 A CN113548607 A CN 113548607A
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- Prior art keywords
- circuit breaker
- rod
- tray
- intelligent circuit
- truck
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/08—Masts; Guides; Chains
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/12—Platforms; Forks; Other load supporting or gripping members
- B66F9/14—Platforms; Forks; Other load supporting or gripping members laterally movable, e.g. swingable, for slewing or transverse movements
- B66F9/142—Movements of forks either individually or relative to each other
- B66F9/143—Movements of forks relative to each other - symmetric
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/12—Platforms; Forks; Other load supporting or gripping members
- B66F9/16—Platforms; Forks; Other load supporting or gripping members inclinable relative to mast
- B66F9/165—Foldable forks, i.e. where only the horizontal section moves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/12—Platforms; Forks; Other load supporting or gripping members
- B66F9/18—Load gripping or retaining means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/20—Means for actuating or controlling masts, platforms, or forks
- B66F9/24—Electrical devices or systems
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Handcart (AREA)
Abstract
The invention discloses an intelligent circuit breaker lifting maintenance platform truck, which relates to the technical field of electrical maintenance and comprises a truck body, a load platform and a lifting driving device, wherein front wheels of the truck body can be contracted relative to the truck body, the load platform comprises a sliding part and a tray, the sliding part is vertically and slidably arranged on the truck body, the tray is rotatably connected to the sliding part, the tray has a storage state close to the truck body in a rotating stroke, and the lifting driving device is used for driving the load platform to lift. According to the intelligent circuit breaker lifting maintenance platform truck, when the intelligent circuit breaker lifting maintenance platform truck is used, the front wheels are unfolded to increase the stability of a truck body, the tray is unfolded to be in a horizontal state to bear a circuit breaker, when the intelligent circuit breaker lifting maintenance platform truck is stored or transported in logistics, the front wheels can be retracted into the truck body, and the tray can be rotated upwards to be in a storage state close to the truck body, so that the whole volume is reduced, the intelligent circuit breaker lifting maintenance platform truck is convenient to store, small in storage room space and convenient to transport in logistics.
Description
Technical Field
The invention relates to the technical field of electrical overhaul, in particular to an intelligent circuit breaker lifting overhaul platform truck.
Background
When the intelligent circuit breaker lifting maintenance platform car is used for installation, maintenance and maintenance operation, manual operation is replaced, the circuit breaker is transferred to a pallet or the ground from a switch cabinet in an electric operation mode, or the circuit breaker is lifted to the switch cabinet from the ground, the labor intensity of operators on the same line can be effectively reduced, and the safety guarantee of the operators is improved.
For example, the invention patent with the granted announcement number of CN104112995B, the granted announcement date of 2017, 8.8 and the name of 'a 12/24kV middle-placed switch cabinet overhaul platform car' comprises a car body and a shelf, wherein the front side and the rear side of the bottom of the car body are respectively provided with a wheel set I and a wheel set II, the shelf is positioned at the top of the car body, two sides of the shelf are respectively provided with a stroke baffle, guide rails are symmetrically arranged on the shelf, a height adjusting device is arranged between the shelf and the car body and used for adjusting the height of the shelf, the side surface of the car body is provided with a control panel, a switch cabinet comprehensive indicator is arranged on the control panel, a hook is arranged between the bottom of the shelf and the car body, one side of the hook is provided with a deflector rod, a rotating wheel I is arranged beside one side of the hook, the rotating wheel I is arranged at the bottom of the shelf, a spring is arranged between the rotating wheel I and the hook, and the other end of the hook is provided with a hook body, the rotating wheel II arranged at the middle part of the hook and the bottom of the shelf is rotationally connected, when the shelf is connected with the middle-placed switch cabinet, the hook is stirred, the hook is hung on the middle-placed switch cabinet placed on the guide rail, when the shelf is connected with the middle-placed switch cabinet, the hook is stirred, the hook is separated from the middle-placed switch cabinet, the guide shaft arranged on one side of the guide rail is inserted into the middle-placed switch cabinet. Therefore, the circuit breaker can be tested by operating steps in the simulated cabinet outside the cabinet body, and great convenience is brought to the maintainers. For another example, patent nos. CN212863968U and CN209702262U disclose breaker inspection equipment related thereto.
In the prior art, the equipment and tools for electrical overhaul are centralized and stored in the storage chamber when not used, the volume of the existing circuit breaker lifting overhaul platform car is large, and the storage chamber is occupied when the existing circuit breaker lifting overhaul platform car is stored; in addition, several major components are disassembled and packaged during the logistics transportation process to reduce the space occupied by the transportation vehicle and reduce the transportation cost, which causes the buyer to assemble the transportation vehicle by himself after receiving the goods, and even the manufacturer needs to send a technician to assemble the transportation vehicle by the door, which is very inconvenient.
Disclosure of Invention
The invention aims to provide an intelligent circuit breaker lifting maintenance platform truck to overcome the defects in the prior art.
In order to achieve the above purpose, the invention provides the following technical scheme: the utility model provides an intelligence circuit breaker goes up and down to overhaul platform truck, includes automobile body, load platform and lift drive, wherein, the relative automobile body of automobile body front wheel can contract, the load platform includes sliding part and tray, the vertical slip of sliding part sets up on the automobile body, the tray rotate connect in on the sliding part, the tray has in the rotation stroke and draws close the state of accomodating of automobile body, lift drive is used for the drive the load platform goes up and down.
Furthermore, the base of the vehicle body is provided with two rear wheels, two sides of the base are respectively provided with a supporting leg in a horizontal sliding manner, and the two supporting legs are respectively provided with the front wheels.
The supporting leg is characterized by further comprising a limiting part, a through hole located on the supporting leg sliding path is formed in the base, two butt joint parts are arranged on the supporting leg, and the limiting part penetrates through the through hole to be detachably connected and matched with any butt joint part so that the supporting leg is fixed on the base.
Further, the lifting driving device is a hydraulic device, a scissor type lifting device or a lifting device.
Further, the device comprises a switching mechanism for switching the working state and the complete storage state of the device, wherein the switching mechanism comprises a first elastic unit, a second elastic unit, a connecting rod, a fixed pulley, a first hanging rod, a second hanging rod, a third elastic unit, a vertical rod, a wedge block, a stop block and a pull rope, wherein the first elastic unit recovers the deformed process driving supporting leg and the front wheel to slide away from the rear wheel, the second elastic unit recovers the deformed process driving tray to upwards rotate to the storage state from the horizontal state, the connecting rod is fixedly connected between the two supporting legs, the fixed pulley is rotatably arranged on the vehicle body, the first hanging rod is fixedly connected to the rear side of the vehicle body, the second hanging rod is horizontally slidably arranged on the vehicle body and is positioned above the first hanging rod, the upper surface of the second hanging rod is an inclined surface, and the third elastic unit recovers the deformed process driving the second hanging rod to backwards move towards the vehicle body, montant and second peg fixed connection, and be located the front side of automobile body, the wedge slide set up in on the sliding part, and wedge and the vertical sliding connection of montant, dog fixed connection in on the tray, and with the wedge keeps off mutually and connects the cooperation, stay cord one end fixed connection in the middle part of connecting rod, the other end are walked around a fixed pulley back fixed connection pin, the pin can keep off with first peg, second peg respectively and connect the cooperation.
Furthermore, the tray comprises a fixed frame which is rotationally connected to the sliding part and two clamping parts which are symmetrically arranged on the fixed frame, and at least one of the two clamping parts is arranged on the fixed frame in a sliding manner.
Furthermore, the fixed frame is rotatably connected with a first screw rod, the clamping portion which is arranged on the fixed frame in a sliding mode is fixedly connected with a first nut, the first screw rod is in threaded connection with the first nut, and a rotating handle is arranged at one end of the first screw rod.
Further, still include central adjustment mechanism, two the clamping part all slide set up in on the mount, central adjustment mechanism includes dwang and drive unit, the dwang rotates and sets up in the middle part of mount, the dwang both ends are rotated respectively and are connected with a movable rod, two the one end that the dwang was kept away from to the movable rod rotates with two clamping part one-to-one ground and is connected, drive unit is used for the drive the dwang rotates to make two clamping parts be close to or the synchronous slip from to the mount central synchronizing slip.
Further, the drive unit includes gear, rack, second nut and second screw rod, wherein, the gear is fixed set up in the axis of rotation of dwang, the rack slide set up in on the mount, just the rack with gear engagement, second nut fixed connection in on the mount, the second screw rod with second nut threaded connection, just the one end of second screw rod and the tip fixed connection of rack, the other end is provided with revolves the handle.
Further, drive unit includes worm wheel, worm and servo motor, wherein, the worm wheel fixed set up in the axis of rotation of dwang, servo motor fixed mounting in on the mount, the coaxial fixed connection of worm and servo motor's pivot, and the worm with the worm wheel meshing.
In the technical scheme, when the intelligent circuit breaker lifting maintenance platform truck is used, the front wheels are unfolded to increase the stability of a truck body, the tray is unfolded to be in a horizontal state to bear a circuit breaker, when the intelligent circuit breaker lifting maintenance platform truck is stored or transported in logistics, the front wheels can be retracted into the truck body, and the tray can be upwards rotated to be in a storage state close to the truck body, so that the intelligent circuit breaker lifting maintenance platform truck can be stored without being disassembled, the whole volume is reduced, the intelligent circuit breaker lifting maintenance platform truck is convenient to store, the occupied storage room space is small, the logistics transportation is convenient, and the use of buyers is convenient.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
FIGS. 1-3 are schematic diagrams of the overall structure provided by the embodiment of the present invention;
fig. 4 is a schematic structural view of a tray provided in an embodiment of the present invention in a storage state;
FIG. 5 is a schematic structural view of the fully stowed position according to an embodiment of the present invention;
FIG. 6 is a schematic structural view of a front wheel according to an embodiment of the present invention when deployed;
FIG. 7 is a schematic structural view of a front wheel according to an embodiment of the present invention when retracted;
fig. 8 is a schematic structural diagram of a switching mechanism in an operating state according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a switching mechanism in a storage state according to an embodiment of the present invention;
fig. 10 is a schematic structural view of a fixing frame according to an embodiment of the present invention;
FIG. 11 is a schematic structural view of the embodiment of the present invention, in which only one clamping portion slides;
FIG. 12 is a schematic structural diagram of a centering mechanism according to an embodiment of the present invention;
fig. 13 is a schematic structural diagram of a center adjustment mechanism according to another embodiment of the present invention.
Description of reference numerals:
1. a vehicle body; 1.1, a front wheel; 1.2, a rear wheel; 1.3, supporting legs; 1.4, a limiting part; 1.5, a through hole; 1.6, a butt joint part; 2. a load-carrying platform; 2.1, a sliding part; 2.2, a tray; 2.21, a fixing frame; 2.22, a clamping part; 2.23, a first screw; 2.24, a first nut; 2.25, rotating the handle; 2.3, a buffer part; 3. a switching mechanism; 3.1, a first elastic unit; 3.2, a second elastic unit; 3.3, connecting rods; 3.4, a fixed pulley; 3.5, a first hanging rod; 3.6, a second hanging rod; 3.7, a third elastic unit; 3.8, vertical rods; 3.9, wedge-shaped blocks; 3.10, a stop block; 3.11, pulling a rope; 3.12, a stop lever; 4. a center adjusting mechanism; 4.1, rotating the rod; 4.2, a movable rod; 4.3, a driving unit; 4.31, gear; 4.32, a rack; 4.33, a second nut; 4.34, a second screw; 4.35, rotating the handle; 4.36, a worm gear; 4.37, worm; 4.38, servo motor.
Detailed Description
In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.
Referring to fig. 1 to 13, an intelligent breaker lifting maintenance platform truck provided in an embodiment of the present invention includes a truck body 1, a load platform 2 and a lifting driving device, wherein a front wheel 1.1 of the truck body 1 is retractable relative to the truck body 1, the load platform 2 includes a sliding portion 2.1 and a tray 2.2, the sliding portion 2.1 is vertically slidably disposed on the truck body 1, the tray 2.2 is rotatably connected to the sliding portion 2.1, the tray 2.2 has a storage state close to the truck body 1 in a rotation stroke, and the lifting driving device is configured to drive the load platform 2 to lift.
Specifically, automobile body 1 includes the base, be provided with two rear wheels 1.2 on the base, two rear wheels 1.2 are the universal wheel, the both sides of base horizontal slip respectively are provided with a supporting leg 1.3, be provided with front wheel 1.1 on two supporting legs 1.3 respectively, front wheel 1.1 can contract through supporting legs 1.3 automobile body 1 relatively, thereby change the interval between front wheel 1.1 and the rear wheel 1.2, when automobile body 1 load, interval increase between front wheel 1.1 and the rear wheel 1.2 pulls open, can increase automobile body 1's stability, front wheel 1.1 removes when being close to rear wheel 1.2, the ground area that automobile body 1 occupy reduces, and do not influence the empty car of automobile body and remove, be convenient for accomodate and transport. The tray 2.2 of the load platform 2 is used for carrying the circuit breaker, two vertical rails are arranged on the vehicle body 1, the sliding part 2.1 of the load platform 2 is vertically and slidably arranged on the two rails of the vehicle body 1, the sliding part 2.1 is preferably a hinged support slidably arranged on a guide rail, and the lifting driving device drives the sliding part 2.1 to ascend or descend along the rails, so that the whole load platform 2 can ascend and descend along the rails, and the circuit breaker on the tray 2.2 is transferred from the switch cabinet to a pallet or the ground, or lifted from the ground to the switch cabinet. The lifting driving device (not shown in the figures) is a hydraulic device, a scissor type lifting device or a lifting device, and realizes the vertical lifting of the loading platform 2 and the height maintenance, which is the prior art and is not described herein again. The tray 2.2 is rotatably connected with the sliding part 2.1, so that when the circuit breaker works, the tray 2.2 can rotate to be in a horizontal state, when the tray 2.2 rotates to be in the horizontal state, one end of the tray 2.2 is blocked with the top of the sliding part 2.1, the tray 2.2 cannot continuously rotate downwards, and the tray 2.2 is kept in the horizontal state and can bear the circuit breaker; when depositing or transporting, tray 2.2 can upwards rotate to the state of accomodating (vertical state), and the reduction space occupies. In addition, when the tray 2.2 is unfolded to be in a horizontal state, the front end of the tray 2.2 protrudes out of the front wheel 1.1 in the unfolded state, when the intelligent circuit breaker lifting maintenance platform truck moves in an idle state, namely the circuit breaker is not carried on the tray 2.2, workers or objects are easily scraped by the front end of the tray 2.2, therefore, referring to fig. 4, the tray 2.2 can be only rotated to be in a storage state, the front wheel 1.1 is still unfolded, and therefore the intelligent circuit breaker lifting maintenance platform truck is convenient to move and can avoid the front end of the tray 2.2 from scraping the workers or the objects.
In the technical scheme, when the intelligent circuit breaker lifting maintenance platform truck is used, referring to fig. 1-3, the front wheels 1.1 are unfolded to increase the stability of the truck body 1, the trays 2.2 are unfolded to be in a horizontal state to bear a circuit breaker, when the intelligent circuit breaker lifting maintenance platform truck is stored or transported in logistics, the front wheels 1.1 can be retracted into the truck body 1, the trays 2.2 can be rotated upwards to be close to the storage state of the truck body 1, and referring to fig. 5, so that the intelligent circuit breaker lifting maintenance platform truck can be stored without being disassembled, the whole volume is reduced, the intelligent circuit breaker lifting maintenance platform truck is convenient to store, the occupied storage room space is small, the logistics transportation is convenient, and a buyer can use the intelligent circuit breaker lifting maintenance platform truck conveniently.
As a preferable technical solution of this embodiment, referring to fig. 6-7, the present invention further includes a limiting portion 1.4, the base is provided with a through hole 1.5 located on the sliding path of the supporting foot 1.3, the supporting foot 1.3 is provided with two abutting portions 1.6, the limiting portion 1.4 penetrates through the through hole 1.5 to be detachably connected and matched with any abutting portion 1.6, so that the supporting foot 1.3 is fixed on the base, when the supporting foot 1.3 and the front wheel 1.1 are in an unfolded state, that is, when the distance between the front wheel 1.1 and the rear wheel 1.2 reaches a maximum, the limiting portion 1.4 penetrates through the through hole 1.5 to be connected with the abutting portion 1.6, far away from the front wheel 1.1, on the supporting foot 1.3, the supporting foot 1.3 is fixed on the base, then the limiting portion 1.4 is removed, the supporting foot 1.3 and the front wheel 1.1 is slidably contracted into the base, at this time, the abutting portion 1.6, near the front wheel 1.1.1.1.1.1, 3, coincides with the through hole 1.5, and is connected to the abutting portion, near the supporting foot 1.6, the supporting feet 1.3 are accommodated and fixed on the base. Preferably, the limiting part 1.4 is a bolt, the butt joint part is a 1.6-bit jack, and the bolt is in inserted fit with the jack. Preferably, the limiting part 1.4 is a bolt, the butt joint part 1.6 is a screw hole, and the bolt is in threaded connection and matching with the screw hole.
In another embodiment of the present invention, referring to fig. 8-9, the present invention further comprises a switching mechanism 3 for switching the working state and the fully retracted state of the present invention, that is, the tray 2.2 is in the horizontally extended state, the front wheel 1.1 is also in the extended state, and the tray 2.2 is in the vertically retracted state, and the front wheel 1.1 is retracted into the base. The switching mechanism 3 comprises a first elastic unit 3.1, a second elastic unit 3.2, a connecting rod 3.3, a fixed pulley 3.4, a first hanging rod 3.5, a second hanging rod 3.6, a third elastic unit 3.7, a vertical rod 3.8, a wedge-shaped block 3.9, a stop block 3.10 and a pull rope 3.11, wherein the process of the first elastic unit 3.1 recovering deformation drives the supporting leg 1.3 and the front wheel 1.1 to slide away from the rear wheel 1.2, the first elastic unit 3.1 is preferably a compression spring, one end of the compression spring is connected with one end of the supporting leg 1.3 far away from the front wheel 1.1, the other end of the compression spring is connected with the base, the process of the second elastic unit 3.2 recovering deformation drives the tray 2.2 to rotate upwards from a horizontal state to a storage state, the second elastic unit 3.2 is preferably a torsion spring, the torsion spring is sleeved on a rotating shaft of the tray 2.2 and the sliding part 2.1, one end of the torsion spring is fixedly connected with the sliding part 2.1, the other end of the tray 2.2, the connecting rod 3.3 is fixedly connected between the two supporting legs, and the two supporting legs can synchronously move, the fixed pulley 3.4 is rotationally arranged on the vehicle body 1, the fixed pulley 3.4 is used for turning a pull rope 3.11, the first hanging rod 3.5 is fixedly connected to the rear side of the vehicle body 1, the second hanging rod 3.6 is horizontally arranged on the vehicle body 1 in a sliding way, the sliding direction is towards the front side and the rear side of the vehicle body 1, the second hanging rod 3.6 is positioned above the first hanging rod 3.5, the upper surface of the second hanging rod 3.6 is an inclined surface, the process of the third elastic unit 3.7 recovering deformation drives the second hanging rod 3.6 to slide towards the rear side of the vehicle body 1, the elasticity of the third elastic unit 3.7 is far smaller than that of the first elastic unit 3.1, the third elastic unit 3.7 is preferably a tension spring, one end of the tension spring towards the front side of the vehicle body 1 is fixedly connected to the vehicle body 1, one end of the tension spring towards the rear side of the vehicle body 1 is fixedly connected to the second hanging rod 3.6, or one end of the tension spring is fixedly connected to the sliding part 2.1, the other end of the wedge-shaped block 3.9, the top of the vertical rod 3.8 is fixedly connected to the second hanging rod 3.6, and be located the front side of automobile body 1 for montant 3.8 can follow second peg 3.6 and slide, montant 3.8 chooses for use the better material of rigidity, preferably, the bottom fixedly connected with slider of montant 3.8, the spout has been seted up on the automobile body 1, the slider slides and sets up in the spout, so can make montant 3.8 more stable along the side motion around automobile body 1, wedge 3.9 slides and sets up on sliding part 2.1, and wedge 3.9 and montant 3.8 vertical sliding connection, dog 3.10 fixed connection is on tray 2.2, and keep off with wedge 3.9 and connect the cooperation, stay cord 3.11 one end fixed connection in the middle part of connecting rod 3.3, the other end walks around fixed pulley 3.4 and turns to a fixed connection pin 3.12 of back fixed connection, pin 3.12 is preferably the round bar, pin 3.12 can keep off with first peg 3.5, second peg 3.6 and connect the cooperation respectively.
When the invention is in a working state, referring to fig. 8, the elastic force of the first elastic unit 3.1 enables the supporting leg 1.3 and the front wheel 1.1 to slide out of the base, the distance between the front wheel 1.1 and the rear wheel 1.2 is maximized, the stop lever 3.12 is blocked and connected with the first hanging rod 3.5, the tray 2.2 is in a horizontal state, the second elastic unit 3.2 is in a compressed state, the third elastic unit 3.7 enables the second pull rod, the vertical rod 3.8 and the wedge block 3.9 to synchronously move towards the front of the vehicle body 1, so that the wedge block 3.9 is in a rotation stroke of the stop block 3.10, the horizontal upper surface of the wedge block 3.9 is blocked and connected with the stop block 3.10, and the elastic force of the second elastic unit 3.2 cannot enable the tray 2.2 to rotate to a storage state; when the switching structure switches the invention from the working state to the completely-stored state, the stop lever 3.12 is pulled upwards, the stop lever 3.12 can be additionally provided with a handle, the pull rod pulls the connecting rod 3.3, the two supporting legs 1.3 and the front wheels 1.1 on the two supporting legs 1.3 to move towards the rear wheels 1.2 to be contracted into the vehicle body 1 (or attached to the front side of the vehicle body 1) through the pull rope 3.11, at the moment, the first elastic unit 3.1 further generates elastic deformation, the stop lever 3.12 pulled upwards is placed on the inclined plane of the second hanging rod 3.6, due to the elastic action of the first elastic unit 3.1, the downward acting force is generated on the stop lever 3.12 through the pull rope 3.11, the inclined plane action of the stop lever 3.12 and the second pull rod is acted, the elastic force of the third elastic unit 3.7 is smaller than that of the first elastic unit 3.1, so that the second pull rod overcomes the elastic unit 3.7 to slide towards the rear direction of the vehicle body 1, the second pull rod 3.8 drives the vertical rod 3.3 to move to the wedge-shaped block 10.3.8 to move away from the vertical rod 3.3, namely, the wedge block 3.9 is no longer in blocking connection with the stop block 3.10, further, the tray 2.2 rotates upwards to a storage state under the elastic force action of the second elastic unit 3.2, the buffer part 2.3 is arranged on the tray 2.2, the buffer part 2.3 is in contact fit with the upper surface of the sliding part 2.1, the tray 2.2 rotates to an emergency stop to play a buffer role, the buffer part 2.3 is preferably sponge, rubber or spring, and the wedge block 3.9 is in sliding connection with the vertical rod 3.8, so that the switching mechanism 3 can work normally no matter the load platform 2 is at any height in the lifting stroke; in the process that the switching mechanism 3 switches the invention from the completely-stored state to the working state, the stop lever 3.12 is taken down from the second hanging rod 3.6 and placed on the first hanging rod 3.5, on one hand, the elastic force of the first elastic unit 3.1 which recovers deformation enables each supporting leg 1.3, the connecting rod 3.3 and each front wheel 1.1 to slide to the unfolded state, so that the distance between the front wheel 1.1 and the rear wheel 1.2 is maximized, on the other hand, the elastic force of the third elastic unit 3.7 which recovers deformation enables the second pull rod, the vertical rod 3.8 and the wedge block 3.9 to move towards the front of the vehicle body 1, so that the wedge block 3.9 moves to the rotation stroke of the stop block 3.10 again, then the tray 2.2 is rotated downwards, the stop block 3.10 on the tray 2.2 is in butt fit with the inclined plane of the wedge block 3.9, so that the wedge block 3.9 drives the vertical rod 3.8 and the second pull rod to overcome the elastic force of the third elastic unit 3.7 to move towards the rear of the vehicle body 1, thereby temporarily separating from the travel stroke of the wedge block 3.9, and then the tray 2.2 can rotate to a horizontal state (working state), at the moment, the stopper 3.10 can be separated from the contact with the inclined surface of the wedge block 3.9 and is positioned above the wedge block 3.9, after the wedge block 3.9 loses the acting force from the stopper 3.10, the third elastic unit 3.7 recovers deformation, the elastic force of the third elastic unit 3.7 enables the second pull rod, the vertical rod 3.8 and the wedge block 3.9 to synchronously move towards the front of the vehicle body 1, so that the wedge block 3.9 is positioned on the rotation stroke of the stopper 3.10 again, the horizontal upper surface of the wedge block 3.9 is blocked and connected with the stopper 3.10, and the tray 2.2 is enabled to rotate and be kept in the horizontal state.
It should be noted that, the present invention is switched from the fully-stored state to the working state, if only the tray 2.2 is rotated to the horizontal state, and the front wheel 1.1 is still in the contracted state, at this time, if the circuit breaker is placed on the tray 2.2, the vehicle body 1 will be planted because the gravity center moves forward, which is very dangerous. Therefore, another effect of the switching mechanism 3 is that, in the process of switching from the fully stored state to the operating state in the present embodiment, if the front wheel 1.1 is not unfolded and still in the retracted state relative to the vehicle body 1, that is, the stop lever 3.12 is not transferred from the second hook lever 3.6 to the first hook lever 3.5, but directly rotates the tray 2.2 downward to the horizontal state, at this time, since the wedge 3.9 is not in the rotation stroke of the stop 3.10, the wedge 3.9 cannot stop the stop 3.10, so that the tray 2.2 cannot be kept in the horizontal state, and after releasing the hand, the elastic force of the second elastic unit 3.2 immediately rotates the tray 2.2 to the stored state, that is, the tray 2.2 cannot be switched to the horizontal operating state, thereby avoiding the above dangerous situation.
In another embodiment of the present invention, referring to fig. 10-13, the tray 2.2 includes a fixing frame 2.21 rotatably connected to the sliding portion 2.1, and two clamping portions 2.22 symmetrically disposed on the fixing frame 2.21, at least one of the two clamping portions 2.22 is slidably disposed on the fixing frame 2.21. Can adjust the interval between two clamping parts 2.22 through removing slidable clamping part 2.22, make the interval of two clamping parts 2.22 and the circuit breaker size adaptation of treating the transfer, let two clamping parts 2.22 can be spacing to the circuit breaker, avoid the circuit breaker to slide on tray 2.2. This scheme can make clamping part 2.22 centre gripping spacing not unidimensional circuit breaker.
Referring to fig. 11, a first screw 2.23 is rotatably connected to the fixing frame 2.21, a first nut 2.24 is fixedly connected to the clamping portion 2.22 slidably disposed on the fixing frame 2.21, the first screw 2.23 is in threaded connection with the first nut 2.24, and a rotating handle 2.25 is disposed at one end of the first screw 2.23. The releasing handle 2.25 rotates the first screw rod 2.23, the first screw rod 2.23 and the first nut 2.24 are in threaded action, so that the first nut 2.24 and the clamping part 2.22 fixedly connected with the first nut 2.24 move, and the distance between the two clamping parts 2.22 is adjusted to adapt to the size of the circuit breaker to be transferred.
In another embodiment of the present invention, referring to fig. 12-13, the present invention further includes a center adjusting mechanism 4, the two clamping portions 2.22 are both slidably disposed on the fixed frame 2.21, the center adjusting mechanism 4 includes a rotating rod 4.1 and a driving unit 4.3, the center of the rotating rod 4.1 is movably disposed in the middle of the fixed frame 2.21, two ends of the rotating rod 4.1 are respectively rotatably connected with a movable rod 4.2, one end of the two movable rods 4.2 far away from the rotating rod 4.1 is rotatably connected with the two clamping portions 2.22 one by one, and the driving unit 4.3 is configured to drive the rotating rod 4.1 to rotate, so that the two clamping portions 2.22 synchronously slide toward or away from the center of the fixed frame 2.21. The central adjusting mechanism 4 can not only adjust the distance between the two clamping portions 2.22, but also enable the symmetry axes of the two clamping portions 2.22 to be always positioned at the center of the fixing frame 2.21, so that the circuit breaker can be placed in the middle of the tray 2.2, and can be effectively prevented from tilting.
Referring to fig. 12, a driving unit 4.3 includes a gear 4.31, a rack 4.32, a second nut 4.33, and a second screw 4.34, where the gear 4.31 is fixedly disposed on a rotating shaft of the rotating rod 4.1, the gear 4.31 is fixedly connected to the rotating rod 4.1, the rack 4.32 is slidably disposed on the fixing frame 2.21, the rack 4.32 is engaged with the gear 4.31, the second nut 4.33 is fixedly connected to the fixing frame 2.21, the second screw 4.34 is threadedly connected to the second nut 4.33, one end of the second screw 4.34 is fixedly connected to an end of the rack 4.32, and the other end is provided with a knob 4.35. The second screw rod 4.34 is rotated by the knob 4.35, the second screw rod 4.34 and the second nut 4.33 are in threaded action to move, the second screw rod 4.34 drives the rack 4.32 to move, the rack 4.32 drives the gear 4.31 meshed with the rack to rotate, the gear 4.31 drives the rotating rod 4.1 to rotate, and the rotating rod 4.1 simultaneously drives the two clamping parts 2.22 to synchronously slide towards the center of the fixed frame 2.21 through the two movable rods 4.2 to be close to or synchronously slide away from the center of the fixed frame 2.21 so as to adapt to the size of the circuit breaker to be transferred. The second screw rod 4.34 and the second nut 4.33 have a self-locking function, so that after the two clamping parts 2.22 are adjusted to a proper distance, the two clamping parts 2.22 can be locked as long as the knob 4.35 or the second screw rod 4.34 stops rotating.
As another preferable technical solution of this embodiment, referring to fig. 13, the driving unit 4.3 includes a worm wheel 4.36, a worm 4.37 and a servo motor 4.38, wherein the worm wheel 4.36 is fixedly disposed on the rotating shaft of the rotating rod 4.1, the servo motor 4.38 is fixedly mounted on the fixing frame 2.21, the worm 4.37 is coaxially and fixedly connected with the rotating shaft of the servo motor 4.38, and the worm 4.37 is meshed with the worm wheel 4.36. The worm 4.37 is driven to rotate by the servo motor 4.38, the worm 4.37 drives the worm wheel 4.36 meshed with the worm to rotate, the worm wheel 4.36 drives the rotating rod 4.1 to rotate, and the rotating rod 4.1 simultaneously drives the two clamping parts 2.22 to synchronously slide towards the center of the fixed frame 2.21 to be close to or synchronously slide away from the fixed frame through the two movable rods 4.2 so as to adapt to the size of the circuit breaker to be transferred. The worm 4.37 drives the worm wheel 4.36 to perform deceleration movement, the worm 4.37 and the worm wheel 4.36 are equivalent to a reducer at this time, so that no reducer is additionally arranged between the servo motor 4.38 and the worm 4.37, in addition, the lead angle of the worm 4.37 is smaller than the equivalent friction angle between wheel teeth meshed with the worm wheel 4.36, the worm wheel 4.36 and the worm 4.37 have a self-locking function, namely, the worm wheel 4.36 cannot drive the worm 4.37 to rotate, and therefore, after the two clamping parts 2.22 are adjusted to a proper distance, the two clamping parts 2.22 can be locked by closing the servo motor 4.38 and not rotating the worm 4.37.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (10)
1. The utility model provides an intelligence circuit breaker goes up and down to overhaul platform truck which characterized in that includes:
a vehicle body, a front wheel of which is retractable relative to the vehicle body;
the loading platform comprises a sliding part and a tray, the sliding part is vertically arranged on the vehicle body in a sliding mode, the tray is rotationally connected to the sliding part, and the tray has a storage state of closing the vehicle body in a rotating stroke;
and the lifting driving device is used for driving the loading platform to lift.
2. The intelligent circuit breaker lifting maintenance platform truck of claim 1, wherein the base of the truck body is provided with two rear wheels, two sides of the base are respectively provided with a supporting leg in a horizontal sliding manner, and the two supporting legs are respectively provided with the front wheels.
3. The intelligent circuit breaker lifting maintenance platform truck of claim 2, further comprising a limiting part, wherein the base is provided with a through hole located on the sliding path of the supporting leg, the supporting leg is provided with two butt joint parts, and the limiting part penetrates through the through hole to be detachably connected and matched with any butt joint part so that the supporting leg is fixed on the base.
4. The intelligent circuit breaker lift service platform cart of claim 1, wherein the lift drive device is a hydraulic device, a scissor lift device, or a hoist device.
5. The intelligent circuit breaker lift service platform cart of claim 2, further comprising a switching mechanism for switching its operating state and stowed state, the switching mechanism comprising:
the first elastic unit drives the supporting legs and the front wheel to slide away from the rear wheel in the process of restoring the deformation;
the second elastic unit drives the tray to rotate upwards from a horizontal state to a storage state in the process of recovering deformation;
the connecting rod is fixedly connected between the two supporting legs;
a fixed pulley rotatably provided on the vehicle body;
the first hanging rod is fixedly connected to the rear side of the vehicle body;
the second hanging rod is horizontally arranged on the vehicle body in a sliding mode and is positioned above the first hanging rod, and the upper surface of the second hanging rod is an inclined surface;
the third elastic unit drives the second hanging rod to slide towards the rear side of the vehicle body in the process of restoring the deformation;
the vertical rod is fixedly connected with the second hanging rod and is positioned on the front side of the vehicle body;
the wedge block is arranged on the sliding part in a sliding mode and is vertically connected with the vertical rod in a sliding mode;
the stop block is fixedly connected to the tray and matched with the wedge block in a blocking manner;
one end of the pull rope is fixedly connected to the middle of the connecting rod, the other end of the pull rope is fixedly connected with a stop lever after bypassing the fixed pulley, and the stop lever can be respectively matched with the first hanging rod and the second hanging rod in a blocking mode.
6. The intelligent circuit breaker lifting maintenance platform truck of claim 1, wherein the tray comprises a fixed frame rotatably connected to the sliding portion, and two clamping portions symmetrically arranged on the fixed frame, at least one of the two clamping portions being slidably disposed on the fixed frame.
7. The intelligent circuit breaker lifting maintenance platform truck of claim 6, wherein the fixing frame is rotatably connected with a first screw, the clamping portion slidably arranged on the fixing frame is fixedly connected with a first nut, the first screw is in threaded connection with the first nut, and one end of the first screw is provided with a rotating handle.
8. The intelligent circuit breaker lifting maintenance platform truck of claim 6, further comprising a center adjusting mechanism, wherein both of the clamping portions are slidably disposed on the fixing frame, and the center adjusting mechanism comprises:
the rotating rod is rotatably arranged in the middle of the fixed frame, two ends of the rotating rod are respectively and rotatably connected with a movable rod, and one ends of the two movable rods, which are far away from the rotating rod, are in one-to-one corresponding rotary connection with the two clamping parts;
and the driving unit is used for driving the rotating rod to rotate so that the two clamping parts synchronously slide to be close to or away from the center of the fixing frame.
9. The intelligent circuit breaker lift service platform cart of claim 8, wherein the drive unit comprises:
the gear is fixedly arranged on the rotating shaft of the rotating rod;
the rack is arranged on the fixed frame in a sliding mode and meshed with the gear;
the second nut is fixedly connected to the fixed frame;
and the second screw rod is in threaded connection with the second nut, one end of the second screw rod is fixedly connected with the end part of the rack, and the other end of the second screw rod is provided with a rotating handle.
10. The intelligent circuit breaker lift service platform cart of claim 8, wherein the drive unit comprises:
the worm wheel is fixedly arranged on the rotating shaft of the rotating rod;
the servo motor is fixedly arranged on the fixed frame;
and the worm is coaxially and fixedly connected with the rotating shaft of the servo motor and meshed with the worm wheel.
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| CN202110819405.8A CN113548607B (en) | 2021-07-20 | 2021-07-20 | Intelligent circuit breaker lifting maintenance platform truck |
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| CN202110819405.8A CN113548607B (en) | 2021-07-20 | 2021-07-20 | Intelligent circuit breaker lifting maintenance platform truck |
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| CN113548607B (en) | 2022-11-01 |
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