CN112551434A - Elevating platform for vehicle maintenance - Google Patents
Elevating platform for vehicle maintenance Download PDFInfo
- Publication number
- CN112551434A CN112551434A CN202011421358.3A CN202011421358A CN112551434A CN 112551434 A CN112551434 A CN 112551434A CN 202011421358 A CN202011421358 A CN 202011421358A CN 112551434 A CN112551434 A CN 112551434A
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- Prior art keywords
- lifting plate
- groove
- hydraulic cylinder
- vehicle
- locking
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/22—Lifting frames, e.g. for lifting vehicles; Platform lifts with tiltable platforms
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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
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/10—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks
- B66F7/16—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks
- B66F7/18—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks by a single central jack
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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
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/28—Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Abstract
The invention discloses a lifting platform for vehicle maintenance, which comprises a base, a lifting plate and a driving assembly, wherein the driving assembly drives the lifting plate to rotate along a hinged part of the lifting plate and the base, and comprises a mounting seat, a hydraulic cylinder, a connecting piece, a vibration sensor, a telescopic sleeve, a telescopic column, a locking ring, a sliding groove, a locking pin, a special-shaped locking groove, an annular electromagnet, a floating block, a locking block, a limiting groove, a kidney-shaped groove and an elastic piece. The invention has the following beneficial effects: the locking pin supports tightly in the horizontal segment groove, and then carries out the dispersed support to the weight of vehicle together with the pneumatic cylinder, reduces the life influence to the pneumatic cylinder, has reduced the unstable phenomenon of hydraulic pressure force that produces because the pneumatic cylinder wearing and tearing, gives the buffer time that the maintenance workman withdrawed from vehicle below safety fast simultaneously, reduces the potential safety hazard.
Description
Technical Field
The invention relates to the technical field of lifting equipment, in particular to a lifting platform for vehicle maintenance.
Background
When a vehicle is maintained, the vehicle generally needs to be lifted, so that a worker can maintain parts on a vehicle chassis, at present, when the vehicle is lifted, the vehicle is mainly lifted through a lifting device, the existing lifting device generally lifts the vehicle integrally, but when the vehicle is maintained simply, the vehicle is lifted integrally, the maintenance time is wasted, and the maintenance efficiency is reduced, so in the prior art, the lifting device is used for lifting the head or the tail of the vehicle independently, when the vehicle is operated specifically, the vehicle is started and rolls wheels onto the lifting device, a hydraulic cylinder on the lifting device drives a lifting plate on the lifting device to swing, so that the head or the tail of the vehicle is lifted, but when the hydraulic cylinder is used for a long time, the inner wall of the hydraulic cylinder is likely to be abraded, so that hydraulic pressure is easily caused, and the vehicle is further shaken, seriously, can make the lifter plate produce the swing by oneself, and then lead to the vehicle to fall, produce safe risk, other jacking equipment mainly drives the lifter plate through a pneumatic cylinder and shifts up to bear the weight of vehicle, produce certain influence to the life of pneumatic cylinder.
To solve the above problems, we propose a lifting platform for vehicle maintenance.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art and provide a lifting platform for vehicle maintenance, and in order to solve the technical problem, the invention provides the following technical scheme:
the invention provides a lifting platform for vehicle maintenance, which comprises a base, wherein a lifting plate is hinged at one transverse end of the base, the lifting plate is driven by a driving assembly to rotate along a hinge joint with the base, the driving assembly comprises a mounting seat hinged at the other end of the base, a hydraulic cylinder is mounted on the mounting seat, a connecting piece is connected to the hydraulic cylinder in a driving manner, the connecting piece is hinged with the upper end of the lifting plate, the hydraulic cylinder drives the connecting piece to move so as to drive the lifting plate to rotate along the hinge joint with the base, a vibration sensor is mounted on the lifting plate, a telescopic sleeve is hinged on the base, a telescopic column is coaxially and slidably arranged in the telescopic sleeve, one end of the telescopic column, penetrating through the telescopic sleeve, is rotatably connected to the lifting plate and is axially parallel to a telescopic rod of the hydraulic cylinder, and a locking ring is coaxially and fixedly connected to one end of the telescopic column, penetrating, correspondingly, a sliding groove for the locking ring to freely pass through in the up-and-down movement is coaxially arranged in the telescopic sleeve, a locking pin is arranged on the locking ring in a penetrating manner, a special-shaped locking groove for the locking pin to be inserted and combined and capable of freely sliding is arranged on the outer wall of the telescopic sleeve, the special-shaped locking groove is formed by sequentially connecting a straight section groove, an arc section groove and a horizontal section groove from top to bottom in an end-to-end penetrating manner, when the telescopic rod of the hydraulic cylinder extends, the locking pin is driven to sequentially pass through the straight section groove and the arc section groove and tightly abut against the horizontal section groove so as to assist in supporting the lifting plate, an inner top wall of the sliding groove is fixedly connected with an annular electromagnet which is sleeved on the telescopic column, a floating block made of a magnetic conductive material is further sleeved on the telescopic column in a sliding manner, the floating block is positioned between the annular electromagnet and the locking ring, and at least one end face, facing the floating, correspondingly, a limit groove for clamping the locking block is formed in the floating block, a kidney-shaped groove for clamping two ends of the floating block in the length direction and capable of freely sliding along the axial direction of the telescopic sleeve is formed in the outer wall of the telescopic sleeve, the floating block is clamped on the telescopic sleeve in a sliding fit mode, an elastic piece is arranged between the floating block and the annular electromagnet, the elastic piece elastically supports against the floating block and drives the floating block to move downwards in a natural state, the locking block is clamped in the limit groove, and the locking ring is limited to rotate.
Furthermore, the upper end of the telescopic column is coaxially and fixedly connected with a ball head, and correspondingly, a spherical clamping groove for clamping the ball head and capable of freely rotating is formed in the lifting plate.
Furthermore, the elastic part is a compression spring sleeved on the telescopic column, and two ends of the compression spring in the elastic direction are fixedly connected to the floating block and the annular electromagnet respectively.
Furthermore, a plurality of tooth-shaped convex blocks are arranged on the top surface of the lifting plate.
Furthermore, the bottom end of the lifting plate is provided with a transition section which is in contact with the base placing surface.
The working method of the lifting platform for vehicle maintenance comprises the following steps:
1) the wheels of the vehicle roll to the top surface of the lifting plate from the base placing surface, the hydraulic cylinder is started, the telescopic rod of the hydraulic cylinder extends to drive the connecting piece to move upwards, and further the lifting plate is driven to rotate along the hinged part of the lifting plate and the base, so that one end of the lifting plate, far away from the hinged part of the lifting plate and the base, moves upwards, and the vehicle is lifted;
2) in the process of moving the lifting plate upwards, the annular electromagnet is in a power-on state, the floating block which is attracted by the magnetic force of the annular electromagnet moves upwards at the moment, the locking block is separated from a clamping state with the limiting groove, the telescopic column can freely rotate, the locking pin slides into the arc-shaped groove from the straight section groove and slides into the horizontal section groove from the arc-shaped groove, the hydraulic cylinder stretches in place at the moment, the locking pin is tightly pressed and limited in the horizontal section groove, and then the vehicle on the lifting plate is supported in an auxiliary mode, so that the load of the hydraulic cylinder is reduced;
3) after the maintenance of the vehicle is finished, starting the vehicle, enabling wheels to roll off from the lifting plate, then starting the hydraulic cylinder, resetting the hydraulic cylinder, enabling the lifting plate to swing downwards, further enabling the locking pin to slide into the arc-shaped groove from the horizontal groove, then sliding into the straight groove from the arc-shaped groove, and further enabling the lifting plate to swing downwards;
4) when the hydraulic cylinder is used for a long time, the inner wall of the cylinder sleeve is abraded, so that the hydraulic pressure is unstable, and when the lifting plate shakes, at the moment, the vibration sensor receives vibration and generates a signal to be fed back to an external controller, the external controller controls the annular electromagnet to be powered off, the annular electromagnet loses magnetism after being powered off, at the moment, the floating block is enabled to rapidly slide downwards under the elastic abutting action of the elastic piece, the locking block is instantly clamped into the limit groove, at the moment, the floating block is clamped in the kidney-shaped groove, so that the telescopic column cannot rotate, so that the locking pin can not slide into the arc-shaped section groove from the horizontal section groove, the locking pin is tightly propped against the horizontal section groove, therefore, the telescopic columns and the telescopic sleeves continue to support the lifting plate in an auxiliary mode, and the phenomenon that the lifting plate shakes due to unstable hydraulic pressure of the hydraulic cylinder is avoided.
Compared with the prior art, the invention has the following beneficial effects: when the hydraulic cylinder drives the connecting piece to move upwards, the telescopic column is rotationally connected to the lifting plate, so that the locking pin synchronously slides into the arc-shaped section groove along the straight section groove and then slides into the horizontal section groove through the arc-shaped section groove, the locking pin is tightly abutted against the horizontal section groove, the weight of a vehicle is further dispersedly supported together with the hydraulic cylinder, the influence on the service life of the hydraulic cylinder is reduced, when the inner wall of a cylinder sleeve of the hydraulic cylinder is abraded, hydraulic pressure force is possibly generated to be unstable, at the moment, the lifting plate possibly shakes, the shaking sensor receives shaking information and generates a signal to be fed back to the external controller, the external controller quickly cuts off a power supply of the annular electromagnet, the elastic piece quickly abuts against the floating block, the locking block is quickly clamped into the limiting groove, the telescopic column cannot rotate at the moment because the floating block is clamped in the waist-shaped groove, and the state that the locking pin is, and then the lifting plate is continuously supported, so that the phenomenon of unstable hydraulic pressure caused by the abrasion of the hydraulic cylinder is reduced, meanwhile, the buffer time for the maintenance worker to safely evacuate from the lower part of the vehicle is given, and the potential safety hazard is reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of a vehicle maintenance platform according to the present invention;
FIG. 2 is an enlarged view of a portion of the structure at A in FIG. 1;
FIG. 3 is a schematic front view of the telescoping sleeve of the present invention;
the reference numerals are explained below:
1-transition section, 2-vibration sensor, 3-telescopic column, 4-dentate lug, 5-lifting plate, 6-connecting piece, 7-telescopic sleeve, 8-straight section groove, 9-hydraulic cylinder, 10-mounting seat, 11-base, 12-annular electromagnet, 13-compression spring, 14-limiting groove, 15-locking ring, 16-locking pin, 17-locking block, 18-floating block, 19-kidney-shaped groove, 20-horizontal section groove and 21-arc section groove.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Examples
As shown in fig. 1-3, a lifting platform for vehicle maintenance comprises a base 11, a lifting plate 5 is hinged to one transverse end of the base 11, the lifting plate 5 is driven by a driving assembly to rotate along a hinge with the base 11, the driving assembly comprises a mounting seat 10 hinged to the other end of the base 11, a hydraulic cylinder 9 is mounted on the mounting seat 10, a connecting piece 6 is connected to the hydraulic cylinder 9 in a driving manner, the connecting piece 6 is hinged to the upper end of the lifting plate 5, the hydraulic cylinder 9 drives the connecting piece 6 to move, the lifting plate 5 is driven to rotate along the hinge with the base 11, a vibration sensor 2 is mounted on the lifting plate 5, a telescopic sleeve 7 is hinged to the base 11, a telescopic column 3 is coaxially and slidably arranged in the telescopic sleeve 7, one end of the telescopic column 3, which penetrates through the telescopic sleeve 7, is rotatably connected to the lifting plate 5, the axial direction of the telescopic rod is parallel to the axial direction of the telescopic rod of the hydraulic cylinder 9, one end of the telescopic column 3 penetrating into the telescopic sleeve 7 is coaxially and fixedly connected with a locking ring 15, correspondingly, a sliding groove for the locking ring 15 to freely pass through when moving up and down is coaxially arranged in the telescopic sleeve 7, a locking pin 16 is arranged on the locking ring 15 in a penetrating way, a special-shaped locking groove for the locking pin 16 to be inserted and combined and freely slide is arranged on the outer wall of the telescopic sleeve 7, the special-shaped locking groove is formed by sequentially connecting a straight section groove 8, an arc section groove 21 and a horizontal section groove 20 from top to bottom in an end-to-end penetrating way, when the telescopic rod of the hydraulic cylinder 9 is extended, the locking pin 16 is driven to sequentially penetrate through the straight section groove 8 and the arc section groove 21 and tightly abut against the horizontal section groove 20 so as to perform auxiliary support on the lifting plate 5, the inner top wall of the sliding groove is fixedly connected with an annular electromagnet 12, the telescopic column 3 is further provided with a floating block 18 made of a magnetic conductive material in a sliding fit mode, the floating block 18 is located between the annular electromagnet 12 and the locking ring 15, one end face, facing the floating block 18, of the locking ring 15 is provided with at least one locking block 17, correspondingly, the floating block 18 is provided with a limiting groove 14 for clamping the locking block 17, the outer wall of the telescopic sleeve 7 is provided with a kidney-shaped groove 19 for clamping two ends of the floating block 18 in the length direction and capable of freely sliding along the axial direction of the telescopic sleeve 7, the floating block 18 is further clamped on the telescopic sleeve 7 in a sliding fit mode, an elastic piece is arranged between the floating block 18 and the annular electromagnet 12, the elastic piece elastically supports against the floating block 18 and drives the floating block 18 to move downwards in a natural state, the locking block 17 is further clamped in the limiting groove 14, and the rotation of the locking ring 15 is limited.
Specifically, the coaxial rigid coupling in 3 upper ends of flexible post has the bulb, and is corresponding, set up on the lifter plate 5 and supply the bulb block, and can free rotation's spherical clamping groove, it is spacing to rotate and be connected at spherical clamping groove through the bulb for flexible post 3 rotates with lifter plate 5.
The elastic piece is a compression spring 13 sleeved on the telescopic column 3, and two ends of the compression spring 13 in the elastic direction are fixedly connected to the floating block 18 and the annular electromagnet 12 respectively.
The plurality of toothed convex blocks 4 are arranged on the top surface of the lifting plate 5, so that the friction resistance between the wheels of the vehicle and the surface of the lifting plate 5 is large, and the wheels cannot slide down from the lifting plate 5 under the condition that the vehicle is braked.
The bottom end of the lifting plate 5 is provided with a transition section 1 which is in contact with the placing surface of the base 11, and the wheels of the vehicle can roll onto the lifting plate 5 more smoothly by arranging the transition section 1.
The embodiment also discloses a lifting platform for vehicle maintenance, and the working method comprises the following steps:
1) the wheels of the vehicle roll to the top surface of the lifting plate 5 from the placing surface of the base 11, the hydraulic cylinder 9 is started, the telescopic rod of the hydraulic cylinder 9 extends to drive the connecting piece 6 to move upwards, and further drive the lifting plate 5 to rotate along the hinged part of the lifting plate 5 and the base 11, so that one end of the lifting plate 5, which is far away from the hinged part of the lifting plate and the base 11, moves upwards, and further the vehicle is lifted;
2) in the process that the lifting plate 5 moves upwards, the annular electromagnet 12 is in a power-on state, the floating block 18 which is attracted by the magnetic force of the annular electromagnet 12 moves upwards at the moment, the locking block 17 is separated from a clamping state with the limiting groove 14, the telescopic column 3 can freely rotate, the locking pin 16 slides into the arc-shaped groove 21 from the straight-section groove 8 and slides into the horizontal-section groove 20 from the arc-shaped groove 21, the hydraulic cylinder 9 stretches and retracts in place at the moment, the locking pin 16 is tightly pressed and limited in the horizontal-section groove 20, and then the vehicle on the lifting plate 5 is supported in an auxiliary mode, and the load of the hydraulic cylinder 9 is reduced;
3) after the maintenance of the vehicle is finished, starting the vehicle, enabling wheels to roll off the lifting plate 5, then starting the hydraulic cylinder 9, resetting the hydraulic cylinder 9, enabling the lifting plate 5 to swing downwards, further enabling the locking pin 16 to slide into the arc-shaped groove 21 from the horizontal groove 20, further enabling the locking pin 16 to slide into the straight groove 8 from the arc-shaped groove 21, and further enabling the lifting plate 5 to swing downwards;
4) when the hydraulic cylinder 9 is used for a long time, the inner wall of the cylinder sleeve is abraded, so that hydraulic pressure is unstable, the lifting plate 5 shakes, the vibration sensor 2 receives vibration and generates a signal to feed back the signal to an external controller, the external controller controls the annular electromagnet 12 to be powered off, the annular electromagnet 12 loses magnetism after being powered off, the floating block 18 rapidly slides downwards under the elastic abutting action of the elastic piece, the locking block 17 is instantly clamped into the limiting groove 14, at the moment, the telescopic column 3 cannot rotate due to the fact that the floating block 18 is clamped in the waist-shaped groove 19, the locking pin 16 cannot slide into the arc-shaped groove 21 from the horizontal groove 20, the locking pin 16 abuts against the horizontal groove 20, and the telescopic column 3 and the telescopic sleeve 7 continue to support the lifting plate 5 in an auxiliary mode, the phenomenon that the lifting plate 5 shakes due to unstable hydraulic pressure of the hydraulic cylinder 9 is avoided.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The lifting platform for vehicle maintenance is characterized by comprising a base (11), wherein a lifting plate (5) is hinged to one transverse end of the base (11), the lifting plate (5) is driven by a driving assembly to rotate along the hinged position with the base (11), the driving assembly comprises a mounting seat (10) which is hinged to the other end of the base (11), a hydraulic cylinder (9) is mounted on the mounting seat (10), a connecting piece (6) is connected to the hydraulic cylinder (9) in a driving mode, the connecting piece (6) is hinged to the upper end of the lifting plate (5), the hydraulic cylinder (9) drives the connecting piece (6) to move, the lifting plate (5) is driven to rotate along the hinged position with the base (11), a vibration sensor (2) is mounted on the lifting plate (5), a telescopic sleeve (7) is hinged to the base (11), and a telescopic column (3) is coaxially arranged in the telescopic sleeve (7) in a sliding mode in a penetrating mode, the one end that flexible post (3) were worn out flexible cover (7) is rotated and is connected on lifter plate (5), and its axial with the telescopic link axial direction parallel of pneumatic cylinder (9), the coaxial rigid coupling of one end in flexible cover (7) is worn into in flexible post (3) has lock ring (15), and is corresponding, coaxial being equipped with in flexible cover (7) supplies lock ring (15) to reciprocate the sliding tray that can freely pass through, wear to be equipped with lock round pin (16) on lock ring (15), set up on flexible cover (7) outer wall and supply lock round pin (16) to insert, and can freely gliding heterotypic locking groove, heterotypic locking groove is by straight section groove (8), arc section groove (21), horizontal segment groove (20) of top-down end through connection in proper order, when the telescopic link of pneumatic cylinder (9) is elongated, the drive lock round pin (16) pass straight section groove (8) in proper order, Arc section groove (21) and support tightly in horizontal section groove (20), and then right lifter plate (5) carries out auxiliary stay, the interior roof rigid coupling of sliding tray has annular electromagnet (12), annular electromagnet (12) cup joints on flexible post (3), flexible post (3) go up still sliding fit cover and are equipped with slider (18) of being made by the magnetic conduction material, slider (18) are located between annular electromagnet (12) and lock ring (15), lock ring (15) are equipped with at least one lock block (17) towards the terminal surface of slider (18), and are corresponding, slider (18) are last to be seted up spacing groove (14) that supply slider (17) block, be equipped with on flexible cover (7) outer wall and supply slider (18) length direction both ends block, and can follow the waist shape groove (19) that flexible cover (7) axial free slip, and then the floating block (18) is clamped on the telescopic sleeve (7) in a sliding fit manner, an elastic piece is arranged between the floating block (18) and the annular electromagnet (12), the elastic piece elastically abuts against the floating block (18) and drives the floating block (18) to move downwards in a natural state, and then the locking block (17) is clamped in the limiting groove (14) and limits the locking ring (15) to rotate.
2. The lifting platform for vehicle maintenance according to claim 1, wherein a ball head is coaxially and fixedly connected to the upper end of the telescopic column (3), and correspondingly, a spherical clamping groove for clamping the ball head and capable of freely rotating is formed in the lifting plate (5).
3. The vehicle maintenance lifting platform according to claim 1, wherein the elastic member is a compression spring (13) sleeved on the telescopic column (3), and two ends of the compression spring (13) in the elastic direction are respectively fixedly connected to the slider (18) and the annular electromagnet (12).
4. A vehicle service platform as claimed in claim 1, wherein said lifting plate (5) is provided with a plurality of tooth-like projections (4) on its top surface.
5. A vehicle service platform according to claim 1, wherein the lower end of the lifting plate (5) is provided with a transition section (1) which is in contact with the underlying surface of the base (11).
6. An elevator platform for vehicle maintenance as defined in claim 1, wherein the method of operation comprises the steps of:
1) the wheels of the vehicle roll to the top surface of the lifting plate (5) from the placing surface of the base (11), the hydraulic cylinder (9) is started, the telescopic rod of the hydraulic cylinder (9) extends to drive the connecting piece (6) to move upwards, and further the lifting plate (5) is driven to rotate along the hinged part of the lifting plate and the base (11), so that one end, far away from the hinged part of the lifting plate (5) and the base (11), of the lifting plate moves upwards, and the vehicle is lifted;
2) in the process that the lifting plate (5) moves upwards, the annular electromagnet (12) is in a power-on state, the floating block (18) which is attracted by the magnetic force of the annular electromagnet (12) moves upwards at the moment, the locking block (17) is separated from a clamping state with the limiting groove (14), the telescopic column (3) can freely rotate, the locking pin (16) slides into the arc-shaped groove (21) from the straight-section groove (8) and slides into the horizontal-section groove (20) from the arc-shaped groove (21), the hydraulic cylinder (9) stretches in place at the moment, the locking pin (16) abuts against and is limited in the horizontal-section groove (20), and then the vehicle on the lifting plate (5) is supported in an auxiliary mode, and the load of the hydraulic cylinder (9) is reduced;
3) after the maintenance of the vehicle is finished, starting the vehicle, enabling wheels to roll off from the lifting plate (5), starting the hydraulic cylinder (9), resetting the hydraulic cylinder (9), enabling the lifting plate (5) to swing downwards, further enabling the locking pin (16) to slide into the arc-shaped section groove (21) from the horizontal section groove (20), then slide into the straight section groove (8) from the arc-shaped section groove (21), and further enabling the lifting plate (5) to swing downwards;
4) when the hydraulic cylinder (9) is used for a long time, the inner wall of a cylinder sleeve is abraded, so that hydraulic pressure is unstable, the lifting plate (5) shakes, the vibration sensor (2) receives vibration and generates a signal to be fed back to an external controller, the external controller controls the annular electromagnet (12) to be powered off, the annular electromagnet (12) loses magnetism after being powered off, the floating block (18) rapidly slides downwards under the elastic abutting action of the elastic piece, the locking block (17) is instantly clamped into the limiting groove (14), the telescopic column (3) cannot rotate due to the fact that the floating block (18) is clamped in the waist-shaped groove (19), the locking pin (16) cannot slide into the arc-shaped groove (21) through the horizontal groove (20), and the locking pin (16) abuts against the horizontal groove (20), thereby the telescopic column (3) and the telescopic sleeve (7) continue to support the lifting plate (5) in an auxiliary way, and the phenomenon that the lifting plate (5) shakes due to unstable hydraulic pressure of the hydraulic cylinder (9) is avoided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011421358.3A CN112551434A (en) | 2020-12-08 | 2020-12-08 | Elevating platform for vehicle maintenance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011421358.3A CN112551434A (en) | 2020-12-08 | 2020-12-08 | Elevating platform for vehicle maintenance |
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| CN112551434A true CN112551434A (en) | 2021-03-26 |
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| CN202011421358.3A Pending CN112551434A (en) | 2020-12-08 | 2020-12-08 | Elevating platform for vehicle maintenance |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113724909A (en) * | 2021-07-26 | 2021-11-30 | 浙江韩情辐照技术有限公司 | Electron beam irradiation cargo protection device and irradiation protection method |
| CN116338414A (en) * | 2023-05-31 | 2023-06-27 | 哈尔滨工业大学 | Micro-LED mass transfer electric performance testing device and testing method |
| CN117697264A (en) * | 2024-02-05 | 2024-03-15 | 金言实业集团有限公司 | Aluminum steel plate welding production system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113724909A (en) * | 2021-07-26 | 2021-11-30 | 浙江韩情辐照技术有限公司 | Electron beam irradiation cargo protection device and irradiation protection method |
| CN113724909B (en) * | 2021-07-26 | 2023-12-22 | 浙江韩情辐照技术有限公司 | Electron beam irradiation cargo protection device and irradiation protection method |
| CN116338414A (en) * | 2023-05-31 | 2023-06-27 | 哈尔滨工业大学 | Micro-LED mass transfer electric performance testing device and testing method |
| CN116338414B (en) * | 2023-05-31 | 2023-08-04 | 哈尔滨工业大学 | Micro-LED mass transfer electric performance testing device and testing method |
| CN117697264A (en) * | 2024-02-05 | 2024-03-15 | 金言实业集团有限公司 | Aluminum steel plate welding production system |
| CN117697264B (en) * | 2024-02-05 | 2024-04-12 | 金言实业集团有限公司 | Aluminum steel plate welding production system |
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Application publication date: 20210326 |