CN109573881B - Hydraulic platform that security performance is high - Google Patents
Hydraulic platform that security performance is high Download PDFInfo
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- CN109573881B CN109573881B CN201811428899.1A CN201811428899A CN109573881B CN 109573881 B CN109573881 B CN 109573881B CN 201811428899 A CN201811428899 A CN 201811428899A CN 109573881 B CN109573881 B CN 109573881B
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- Prior art keywords
- lifting platform
- rod
- sleeve
- piston
- platform
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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
- B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
- B66F7/08—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement hydraulically or pneumatically operated
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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
- B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
- B66F7/0625—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement with wheels for moving around the floor
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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
- B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
- B66F7/065—Scissor linkages, i.e. X-configuration
- B66F7/0666—Multiple scissor linkages vertically arranged
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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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
Abstract
The invention discloses a hydraulic platform with high safety performance, which comprises a lifting platform, an air pump, a motor and a conveyor belt, wherein a base is arranged below the lifting platform, a slide rail is arranged on the inner side of the base, the lower end of the lifting platform is embedded in the slide rail, a first piston is arranged at the tail end of a guide rod, a pressure storage cylinder is mutually connected with the side surface of a bearing rod through a vent pipe at the tail end, an air cavity is reserved in the bearing rod, the bearing rod is positioned below the lifting platform, an extension platform is arranged on the left side of the lifting platform, the air pump is arranged below the base, a limiting sleeve rod is wrapped on the outer side of a fixed shaft, and a limiting gear is arranged at the tail end of the fixed shaft. This hydraulic pressure platform that security performance is high, bearing bar pass through the breather pipe and store up a pressure section of thick bamboo through connection to store up the inside of pressing a section of thick bamboo and being full of gas, only when breather pipe and the inside gaseous discharge of bearing bar, the guide bar just can drive first piston and remove right, has improved the security.
Description
Technical Field
The invention relates to the technical field of mechanical equipment, in particular to a hydraulic platform with high safety performance.
Background
In machine-building, often need use hydraulic pressure platform, hydraulic pressure platform mainly adopts forked support, thereby the support carries out the change of angle and drives whole upward movement, has accomplished the work of promoting and carrying the goods. The hydraulic platform is small in size and convenient to move, so that the hydraulic platform becomes an optimal tool for small-sized transportation. However, the existing hydraulic platform has the following problems:
1. the height is inconvenient to measure, so that the height cannot be surveyed in time after the hydraulic platform rises, in addition, the balance of the hydraulic platform cannot be assisted when the hydraulic platform rises, and after the hydraulic platform inclines, goods easily fall off to cause safety accidents;
2. the travelling wheels cannot be fixed, so that the travelling wheels can deviate due to the weight above the travelling wheels when heavy objects are lifted, and the overall safety performance is reduced;
3. when the hydraulic platform is used, four external support legs need to be erected at four corners of the hydraulic platform, the hydraulic platform cannot be used before the support legs are installed, the support legs all need to be fixed by bolts, workers need to fix the bolts of the four support legs in sequence, and the process is complex;
4. after the hydraulic drive is out of control, the fork-shaped supporting legs can suddenly move downwards under the action of gravity, and the heavy object can suddenly fall downwards, so that personal threats are caused to workers.
Disclosure of Invention
The present invention is directed to a hydraulic platform with high safety, which has the features of high safety and convenient viewing of the height, so as to solve the problems mentioned in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a hydraulic platform with high safety performance comprises a lifting platform, an air pump, a motor and a conveyor belt, wherein a base is installed below the lifting platform, a slide rail is arranged on the inner side of the base, the lower end of the lifting platform is installed in the slide rail in an embedded mode, the lower end of the lifting platform is connected with a guide rod, a first piston is installed at the tail end of the guide rod, the first piston extends into a pressure storage cylinder, the pressure storage cylinder is connected with the side face of a bearing rod through a vent pipe at the tail end, an air cavity is reserved in the bearing rod, the bearing rod is located below the lifting platform, a second piston is arranged in the bearing rod, a supporting rod is connected below the second piston, a foot support is fixed below the supporting rod, an extending platform is arranged on the left side of the lifting platform, an extending platform is installed above the extending platform, and a telescopic rod is connected above the telescopic rod, the air pump is installed in the below of base, and the output of air pump passes through breather pipe and bearing bar interconnect to this breather pipe is embedded installs the solenoid valve, the centre of base below is provided with the walking wheel, the center of walking wheel is run through by the drive shaft, and the interconnect of drive shaft and base, the fixed surface of walking wheel has fixed gear, the internally mounted of base has the motor, and the output and the conveyer belt interconnect of motor, the lower pot head of conveyer belt is in the outside of fixed axle, and the embedded inside of installing at the drive shaft in the both ends of fixed axle, the outside parcel of fixed axle has spacing loop bar, and spacing loop bar runs through from the center of fixed arm to the lower surface at the base is fixed to the upper end of fixed arm, spacing gear is installed to the end of fixed.
Preferably, the right lower end of the lifting platform is in sliding connection with the slide rail, the right lower end of the lifting platform and the guide rod form a rotating structure, and the length of the slide rail is smaller than that of the pressure storage cylinder.
Preferably, the pressure storage cylinders are symmetrically arranged about a center parting line of the lifting platform in 2 numbers, and the pressure storage cylinders are in through connection with the bearing rod through vent pipes.
Preferably, the bearing rods are symmetrically provided with 4 bearing rods about the central line of the lifting platform, the 4 bearing rods are connected through the vent pipe, and the sum of the length of the bearing rods and the length of the supporting rods is greater than the height of the lower end face of the walking wheel and the lifting platform.
Preferably, the air cavity is of an annular structure, the inner wall of the air cavity and the second piston form a sliding friction structure, and a gap exists between the upper end of the air cavity and the top end of the inner wall of the bearing rod.
Preferably, the upper end of the telescopic rod penetrates through the lower surface of the sleeve, the upper end of the telescopic rod and the lower surface of the sleeve form a sliding structure, the upper end of the sleeve is connected with the lifting platform in a nested mode, and meanwhile the telescopic rod and the surface of the sleeve are provided with scale strips.
Preferably, the scale bars on the surfaces of the telescopic rod and the sleeve are respectively positioned at the lower horizontal end and the upper horizontal end of the telescopic rod and the sleeve.
Preferably, 2 groups of thread threads are symmetrically formed in the outer side of the fixing shaft, the trend of the 2 groups of thread threads is opposite, and the fixing shaft is in threaded connection with the inner wall of the limiting sleeve rod.
Preferably, the two ends of the fixed shaft are embedded in the driving shaft, the fixed shaft and the driving shaft form a rotating structure, and the driving shaft and the fixed gear form an assembly structure through the travelling wheels.
Preferably, the limiting gear and the fixed gear are of the same diameter structure and are in clamping connection.
Compared with the prior art, the invention has the beneficial effects that: the hydraulic platform with high safety performance;
1. the starting scale of the telescopic rod is arranged at the upper end, and the scale on the surface of the sleeve is arranged at the lowest end, so that the height of the lifting platform can be obtained by adding the two overlapped scales, and the height of the lifting platform can be conveniently watched;
2. the lifting platform is provided with the telescopic rod and the sleeve, the upper end of the telescopic rod is embedded in the sleeve, so that when the lifting platform moves upwards, the sleeve is driven to move upwards, and after the lifting platform is unstable, the lifting platform is hung on the sleeve in an inclined state, so that the lifting platform cannot descend, the situation that goods fall off when the lifting platform is in the inclined state is effectively avoided, namely the safety performance of the lifting platform is improved due to the arrangement of the telescopic rod and the sleeve;
3. the motor drives the fixed shaft to rotate through the conveyor belt, so that the fixed shaft drives the limiting sleeve rod to move until the limiting gear is clamped with the fixed gear, namely, the walking wheel is limited and fixed, the walking wheel is prevented from moving during operation, and the overall safety performance is improved;
4. the air pump is utilized to press air into the bearing rod, the second piston in the bearing rod moves downwards, so that the foot support moves downwards and stands on the ground, the foot support fixes the lifting table, the lifting table is prevented from moving, external support legs are not needed for auxiliary fixing, the use is convenient, and the working procedures are greatly reduced;
5. because the bearing bar passes through breather pipe and stores up and presses a section of thick bamboo through connection, thereby the inside of storing up and pressing a section of thick bamboo is being full of gas, when the elevating platform moves down, store up and press the inside pressure of a section of thick bamboo and make the guide bar can not remove right, thereby make the elevating platform can not damage and the downstream out of control because of the drive, only when breather pipe and the inside gas outgoing of bearing bar, the guide bar just can drive first piston and move right, effectually promptly avoided damaging because of the drive and out of control drop, the stability of elevating platform has been improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the mounting structure of the base and the pressure storage cylinder according to the present invention;
FIG. 3 is a schematic view of a bottom plan view of the base of the present invention;
FIG. 4 is a schematic view of a front view of the base of the present invention;
FIG. 5 is a schematic view of the mounting structure of the fixing shaft and the limiting sleeve rod according to the present invention;
FIG. 6 is a schematic view of the installation structure of the position-limiting sleeve rod and the fixing arm of the present invention;
FIG. 7 is a schematic view of the mounting structure of the load-bearing bar and the foot support according to the present invention.
In the figure: 1. a lifting platform; 2. a base; 3. a slide rail; 4. a pressure storage cylinder; 5. a guide bar; 6. a first piston; 7. a breather pipe; 8. a load-bearing bar; 9. an air cavity; 10. a second piston; 11. a support bar; 12. a foot support; 13. an extension stage; 14. a telescopic rod; 15. a sleeve; 16. an air pump; 17. a traveling wheel; 18. a drive shaft; 19. fixing a gear; 20. an electric motor; 21. a conveyor belt; 22. a fixed shaft; 23. a limiting sleeve rod; 24. a fixed arm; 25. a limit gear; 26. an electromagnetic valve; 27. a scale bar.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-7, the present invention provides a technical solution: a hydraulic platform with high safety performance comprises a lifting platform 1, a base 2, a sliding rail 3, a pressure storage cylinder 4, a guide rod 5, a first piston 6, an air pipe 7, a bearing rod 8, an air cavity 9, a second piston 10, a support rod 11, a foot support 12, an extension platform 13, a telescopic rod 14, a sleeve 15, an air pump 16, a walking wheel 17, a driving shaft 18, a fixed gear 19, a motor 20, a conveyor belt 21, a fixed shaft 22, a limit sleeve rod 23, a fixed arm 24, a limit gear 25, an electromagnetic valve 26 and a scale bar 27, wherein the base 2 is arranged below the lifting platform 1, the sliding rail 3 is arranged on the inner side of the base 2, the lower end of the lifting platform 1 is embedded in the sliding rail 3, the guide rod 5 is connected to the lower end of the lifting platform 1, the first piston 6 is arranged at the tail end of the guide rod 5, the first piston 6 extends into the pressure storage cylinder 4, the right lower end of the lifting, the right lower end of the lifting platform 1 and the guide rod 5 form a rotating structure, and the length of the slide rail 3 is smaller than that of the pressure storage cylinder 4, so that when the lifting platform 1 is lifted, the guide rod 5 below is driven to move, namely the guide rod 5 drives the first piston 6 to move, and gas is stored in the pressure storage cylinder 4;
the pressure storage cylinder 4 is connected with the side surface of the bearing rod 8 through a vent pipe 7 at the tail end, an air cavity 9 is reserved in the bearing rod 8, 2 pressure storage cylinders 4 are symmetrically arranged about a midline of the lifting platform 1, the pressure storage cylinders 4 are in through connection with the bearing rod 8 through the vent pipes 7, namely, an air pump 16 conveys air into the bearing rod 8 through the vent pipes 7 to pressurize the bearing rod 8;
the bearing rod 8 is positioned below the lifting platform 1, a second piston 10 is arranged inside the bearing rod 8, a support rod 11 is connected below the second piston 10, a foot support 12 is fixed below the support rod 11, 4 bearing rods 8 are symmetrically arranged about the central line of the lifting platform 1, the 4 bearing rods 8 are connected through an air pipe 7, the sum of the lengths of the bearing rods 8 and the support rod 11 is larger than the height of the walking wheel 17 and the lower end face of the lifting platform 1, the support rod 11 moves downwards inside the bearing rods 8 under the action of air pressure until the support rod 11 is supported on the ground, the whole body is positioned, and the lifting platform 1 is prevented from moving;
the air cavity 9 is of an annular structure, the inner wall of the air cavity 9 and the second piston 10 form a sliding friction structure, a gap exists between the upper end of the air cavity 9 and the top end of the inner wall of the bearing rod 8, and after the air enters the inside of the bearing rod 8, the air enters the central position of the inside of the heavy rod 8 through the air cavity 9 and pushes the second piston 10 to move downwards, so that the situation that the second piston 10 blocks an air inlet is effectively prevented, and the ventilation stability is ensured;
the left side of the lifting platform 1 is provided with an extension platform 13, an expansion rod 14 is arranged above the extension platform 13, a sleeve 15 is connected above the expansion rod 14, the upper end of the expansion rod 14 penetrates through the lower surface of the sleeve 15, the upper end of the expansion rod 14 and the sleeve 15 form a sliding structure, the upper end of the sleeve 15 is connected with the lifting platform 1 in a nested manner, meanwhile, the surfaces of the expansion rod 14 and the sleeve 15 are provided with scale strips 27, when the lifting platform 1 moves stably, the sleeve 15 is driven to move upwards along the outer surface of the expansion rod 14, when the lifting platform 1 inclines, the sleeve 15 and the expansion rod 14 are not in the same vertical line, the lifting platform 1 is prevented from moving downwards, and therefore, the safety performance of the lifting platform 1 is improved, and when the expansion rod 14 and the sleeve 15 contract, the;
the scale strips 27 on the surfaces of the telescopic rod 14 and the sleeve 15 are respectively positioned at the lower horizontal end and the upper horizontal end of the telescopic rod 14 and the sleeve 15, the arrangement of the scale strips 27 is convenient for observing the height of the lifting platform 1, a worker can know the total length by directly adding the exposed length of the telescopic rod 14 and the length of the sleeve 15, and the condition that the height is inconvenient to watch because the scales are positioned at the uppermost end of the lifting platform 1 is avoided;
the air pump 16 is arranged below the base 2, the output end of the air pump 16 is connected with the bearing rod 8 through the vent pipe 7, the vent pipe 7 is provided with an electromagnetic valve 26 in an embedded mode, a walking wheel 17 is arranged in the middle of the lower portion of the base 2, the center of the walking wheel 17 is penetrated through by a driving shaft 18, the driving shaft 18 is connected with the base 2, the surface of the walking wheel 17 is fixed with a fixed gear 19, the base 2 is internally provided with a motor 20, the output end of the motor 20 is connected with a conveyor belt 21, the lower end of the conveyor belt 21 is sleeved on the outer side of a fixed shaft 22, two ends of the fixed shaft 22 are installed in the driving shaft 18 in an embedded mode, 2 groups of thread threads are symmetrically arranged on the outer side of the fixed shaft 22, the directions of the 2 groups of thread threads are opposite, the fixed shaft 22 is in threaded connection with, the longitudinal section of the limit sleeve rod 23 is a rectangular structure, so that the limit sleeve rod 23 moves in parallel in the fixed arm 24, and the limit sleeve rod 23 moves stably all the time;
the two ends of the fixed shaft 22 are embedded in the driving shaft 18, and the two form a rotating structure, and the driving shaft 18 and the fixed gear 19 form an assembly structure through the traveling wheel 17, and the three are fixed structures, and when the traveling wheel 17 rotates, the driving shaft 18 and the fixed gear 19 are driven to rotate at the same time;
the limiting sleeve rod 23 wraps the outer side of the fixing shaft 22, the limiting sleeve rod 23 penetrates through the center of the fixing arm 24, the upper end of the fixing arm 24 is fixed to the lower surface of the base 2, the limiting gear 25 is mounted at the tail end of the fixing shaft 22, the limiting gear 25 and the fixed gear 19 are of the same-diameter structure and are connected in a clamping mode, when the limiting gear 25 moves to the outermost side, the insections on the surface of the limiting gear 25 are clamped with the insections of the fixed gear 19, and the fixed gear 19 is fixed.
The working principle is as follows: after the whole body is moved to a designated place, firstly locking the traveling wheel 17, as shown in fig. 4-6, namely, firstly starting the motor 20, the motor 20 drives the fixed shaft 22 to rotate through the conveyor belt 21, when the fixed shaft 22 rotates, two sides of the fixed shaft 22 rotate inside the driving shaft 18, the tooth patterns on the surface of the fixed shaft 22 drive the stop sleeve rod 23 to rotate, and simultaneously the stop sleeve rod 23 moves inside the fixed arm 24, namely, the stop sleeve rod 23 drives the stop gear 25 to move until the stop gear 25 is clamped with the fixed gear 19, so that the traveling wheel 17 cannot move, and the traveling wheel 17 is locked;
as shown in fig. 1, 3 and 7, at this time, the air pump 16 is started, the air pump 16 continuously injects air into the inside of the bearing rod 8, the air enters the inside of the bearing rod 8, then the air enters the inside of the bearing rod 8 from the air chamber 9, the air pressure inside the bearing rod 8 is increased, so as to push the second piston 10 to move downward, so that the second piston 10 drives the foot supports 12 to move downward through the supporting rods 11, the foot supports 12 gradually move downward until the lower ends of the foot supports 12 are supported on the ground, in addition, since the 4 bearing rods 8 are communicated with each other through the air pipes 7, that is, the 4 bearing rods 8 simultaneously move downward, the bearing rods 8 are supported on the ground to limit and fix the base 2, so as to prevent the base 2 from moving, further improve the overall stability, and facilitate the operation of the lifting platform 1;
when the lifting platform 1 is lifted upwards, the lifting platform 1 drives the upper end of the sleeve 15 to move upwards at a constant speed and slowly, as shown in fig. 1-2, so that the lower end of the lifting platform 1 moves in the slide rail 3, namely, the right lower foot of the lifting platform 1 drives the guide rod 5 to move leftwards, the guide rod 5 drags the first piston 6 to move in the pressure storage cylinder 4, and as the bearing rod 8 is communicated with the pressure storage cylinder 4 through the vent pipe 7, gas slowly enters the pressure storage cylinder 4 at a constant speed through the vent pipe 7;
along with the ascending of the lifting platform 1, the upper end of the lifting platform 1 drives the upper end of the sleeve 15 to move, namely, the sleeve 15 moves upwards on the outer side of the telescopic rod 14, the scale numbers on the surface of the telescopic rod 14 are gradually exposed, the total length of the sleeve 15 and the telescopic rod 14 is increased at the moment, and the ascending height of the lifting platform 1 can be obtained by adding the number exposed above the telescopic rod 14 and the total length of the sleeve 15;
when the upper end of the lifting platform 1 is in an unbalanced state, the left side of the lifting platform 1 is clamped outside the sleeve 15, so that the lifting platform 1 cannot continuously move downwards, the stability of the lifting platform 1 is ensured, the lifting platform 1 is always in a horizontal state, and the goods on the lifting platform 1 are prevented from falling off due to inclination;
when the hydraulic driving system of the hydraulic platform is suddenly out of control, as shown in fig. 1-3, the lifting platform 1 moves downwards under the action of gravity, at the moment, the right lower corner of the lifting platform 1 moves rightwards in the sliding rail 3, namely, the left side of the guide rod 5 is subjected to a huge impact force at a moment, at the moment, the impact force applied to the first piston 6 is smaller than the pressure relief value of the vent pipe 7, namely, the gas in the pressure storage cylinder 4 can not be completely discharged, so that the reaction force of the gas pressure in the pressure storage cylinder 4 can block the first piston 6, the first piston 6 can be prevented from moving rightwards continuously, the other parts in the pressure storage cylinder 4 can fix the position of the first piston 6, the lifting platform 1 can be prevented from moving downwards, the time for the reaction of the working personnel can be provided, moreover, the gas in the bearing rod 8 further blocks the first piston 6, so that the first piston 6 is placed to move rightwards, and the stability of the lifting platform 1 is ensured;
after the operation is finished, as shown in fig. 3, the electromagnetic valve 26 is opened, the gas in the pressure storage cylinder 4 and the bearing rod 8 is slowly exhausted from the vent pipe 7, the pressure in the pressure storage cylinder 4 is lost, and at this time, the first piston 6 slowly moves to the right, and drives the lifting platform 1 to gradually descend back to the original position.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. A working method of a hydraulic platform with high safety performance is characterized in that,
hydraulic pressure platform include elevating platform (1), air pump (16), motor (20) and conveyer belt (21), its characterized in that: the lifting platform is characterized in that a base (2) is installed below the lifting platform (1), a sliding rail (3) is arranged on the inner side of the base (2), the lower end of the lifting platform (1) is installed in the sliding rail (3) in an embedded mode, the lower end of the lifting platform (1) is connected with a guide rod (5), a first piston (6) is installed at the tail end of the guide rod (5), the first piston (6) extends into the pressure storage cylinder (4), the pressure storage cylinder (4) is connected with the side face of a bearing rod (8) through a vent pipe (7) at the tail end, an air cavity (9) is reserved inside the bearing rod (8), the bearing rod (8) is located below the lifting platform (1), a second piston (10) is arranged inside the bearing rod (8), a supporting rod (11) is connected with the lower portion of the second piston (10), and a foot support (12) is fixed below the supporting rod (11), the left side of elevating platform (1) is provided with extension platform (13), and the top of extension platform (13) installs telescopic link (14), and the top of telescopic link (14) is connected with sleeve (15), air pump (16) are installed in the below of base (2), and the output of air pump (16) passes through breather pipe (7) and bearing bar (8) interconnect, and this breather pipe (7) embedded solenoid valve (26) of installing, the centre of base (2) below is provided with walking wheel (17), the center of walking wheel (17) is run through by drive shaft (18), and the interconnect of drive shaft (18) and base (2), the fixed surface of walking wheel (17) is fixed with fixed gear (19), the internally mounted of base (2) has motor (20), and the output and the conveyer belt (21) interconnect of motor (20), the lower end of the conveyor belt (21) is sleeved on the outer side of the fixed shaft (22), two ends of the fixed shaft (22) are embedded in the driving shaft (18), the outer side of the fixed shaft (22) is wrapped by the limiting sleeve rod (23), the limiting sleeve rod (23) penetrates through the center of the fixed arm (24), the upper end of the fixed arm (24) is fixed on the lower surface of the base (2), and the tail end of the fixed shaft (22) is provided with the limiting gear (25);
2 pressure storage cylinders (4) are symmetrically arranged about a midline of the lifting platform (1), and the pressure storage cylinders (4) are in through connection with a bearing rod (8) through vent pipes (7);
the number of the bearing rods (8) is 4, the 4 bearing rods (8) are symmetrically arranged about the center line of the lifting platform (1), the 4 bearing rods (8) are in through connection through an air pipe (7), and the sum of the lengths of the bearing rods (8) and the supporting rod (11) is greater than the height of the traveling wheels (17) and the lower end face of the lifting platform (1);
the right lower end of the lifting platform (1) is in sliding connection with the sliding rail (3), the right lower end of the lifting platform (1) and the guide rod (5) form a rotating structure, and the length of the sliding rail (3) is smaller than that of the pressure storage barrel (4);
the air cavity (9) is of an annular structure, the inner wall of the air cavity (9) and the second piston (10) form a sliding friction structure, and a gap exists between the upper end of the air cavity (9) and the top end of the inner wall of the bearing rod (8);
the upper end of the telescopic rod (14) penetrates through the lower surface of the sleeve (15), the upper end of the telescopic rod and the lower end of the sleeve (15) form a sliding structure, the upper end of the sleeve (15) is connected with the lifting platform (1) in a nested mode, and meanwhile scale strips (27) are arranged on the surfaces of the telescopic rod (14) and the sleeve (15);
2 groups of thread threads are symmetrically formed in the outer side of the fixed shaft (22), the directions of the 2 groups of thread threads are opposite, and the fixed shaft (22) is in threaded connection with the inner wall of the limiting sleeve rod (23);
the two ends of the fixed shaft (22) are embedded in the driving shaft (18) and form a rotating structure, and the driving shaft (18) and the fixed gear (19) form an assembly structure through the travelling wheel (17);
the working method comprises the following steps:
after the whole body is moved to a designated place, firstly locking the travelling wheels, namely, firstly starting a motor, driving a fixed shaft to rotate by the motor through a conveyor belt, when the fixed shaft rotates, two sides of the fixed shaft rotate in a driving shaft, and the insections on the surface of the fixed shaft drive a limiting sleeve rod to rotate, and meanwhile, the limiting sleeve rod moves in the fixed arm, namely, the limiting sleeve rod drives a limiting gear to move until the limiting gear is clamped with the fixed gear, so that the travelling wheels cannot move, and the travelling wheels are locked; the air pump is started, air is injected into the inside of the bearing rod continuously by the air pump, the air enters the inside of the bearing rod, then the air enters the inside of the bearing rod from the air cavity, the air pressure in the inside of the bearing rod is increased, so that the second piston is pushed to move downwards, the second piston drives the foot supports to move downwards through the supporting rods, the foot supports gradually move downwards until the lower ends of the foot supports are supported on the ground, in addition, the 4 bearing rods are communicated with each other through the vent pipes, namely the 4 bearing rods move downwards simultaneously, the bearing rod supports limit and fix the base on the ground, the base is prevented from moving, the overall stability is further improved, and the operation of the lifting platform is facilitated; when the lifting platform rises upwards, the lifting platform drives the upper end of the sleeve to move upwards at a constant speed and slowly, so that the lower end of the lifting platform moves in the sliding rail, namely, the right lower foot of the lifting platform drives the guide rod to move leftwards, the guide rod drags the first piston to move in the pressure storage cylinder, and the bearing rod is communicated with the pressure storage cylinder through the vent pipe, so that gas slowly enters the pressure storage cylinder at a constant speed through the vent pipe; along with the rising of the lifting platform, the upper end of the lifting platform drives the upper end of the sleeve to move, namely, the sleeve moves upwards outside the telescopic rod, the scale numbers on the surface of the telescopic rod are gradually exposed, the total length of the sleeve and the telescopic rod is increased at the moment, and the rising height of the lifting platform can be obtained by adding the number exposed above the telescopic rod and the total length of the sleeve; when the upper end of the lifting platform is in an unbalanced state, the left side of the lifting platform can be clamped outside the sleeve, so that the lifting platform cannot continuously move downwards, the stability of the lifting platform is ensured, the lifting platform is always in a horizontal state, and the goods on the lifting platform are prevented from falling off due to inclination; when a hydraulic driving system of the hydraulic platform is out of control suddenly, the lifting platform moves downwards under the action of gravity, the lower right corner of the lifting platform moves rightwards in the sliding rail at the moment, namely, the left side of the guide rod is subjected to huge impact force instantly, the impact force applied to the first piston is smaller than the pressure relief value of the vent pipe at the moment, namely, all gas in the pressure storage cylinder cannot be discharged, so that the first piston is blocked by the reaction force of the gas pressure in the pressure storage cylinder, the first piston is prevented from moving rightwards continuously, other positions in the pressure storage cylinder fix the position of the first piston, the lifting platform is prevented from moving downwards, the reaction time of workers is provided, and the gas in the bearing rod further blocks the first piston, the first piston is prevented from moving rightwards, and the stability of the lifting platform is ensured; and after the operation is finished, the electromagnetic valve is opened, the gas in the pressure storage cylinder and the bearing rod is slowly discharged from the vent pipe, the pressure in the pressure storage cylinder is lost, and the first piston slowly moves rightwards at the moment to drive the lifting platform to gradually fall back to the original position.
2. The working method of the hydraulic platform with high safety performance as claimed in claim 1, wherein the working method comprises the following steps: the scale strips (27) on the surfaces of the telescopic rod (14) and the sleeve (15) are respectively positioned at the lower horizontal end and the upper horizontal end of the telescopic rod and the sleeve.
3. The working method of the hydraulic platform with high safety performance as claimed in claim 1, wherein the working method comprises the following steps: the limiting gear (25) and the fixed gear (19) are of the same diameter structure and are connected in a clamping mode.
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| CN201811428899.1A CN109573881B (en) | 2018-11-27 | 2018-11-27 | Hydraulic platform that security performance is high |
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| CN109573881B true CN109573881B (en) | 2020-09-29 |
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| CN110844831A (en) * | 2019-11-26 | 2020-02-28 | 衡阳市林肯液压设备有限公司 | Hydraulic elevator |
| CN111170207B (en) * | 2020-01-06 | 2021-05-11 | 山东启阳液压科技有限公司 | Whole car lifting mechanism with quick decline protection mechanism design |
| CN112678743A (en) * | 2021-01-25 | 2021-04-20 | 中车四方车辆有限公司 | Lifting trolley capable of automatically displaying height |
| CN113072007B (en) * | 2021-03-31 | 2022-05-31 | 九江旭安工程技术服务有限公司 | Electric instrument maintenance platform stable in lifting |
| CN113307177A (en) * | 2021-05-30 | 2021-08-27 | 常耀方 | Mechanical lifting type engineering machinery transfer device and transfer method thereof |
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| CN2802018Y (en) * | 2005-07-07 | 2006-08-02 | 万普华 | Automatic elevator door for building construction material feeding platform |
| CN203998856U (en) * | 2014-07-18 | 2014-12-10 | 国家电网公司 | Lifting mode power equipment maintaining device |
| CN204368120U (en) * | 2014-12-17 | 2015-06-03 | 侯正涛 | A kind of automobile plugging brake gear |
| CN208054811U (en) * | 2018-04-02 | 2018-11-06 | 广西玉柴机器股份有限公司 | A kind of portable hinge connecting rod lifting device |
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| CN2802018Y (en) * | 2005-07-07 | 2006-08-02 | 万普华 | Automatic elevator door for building construction material feeding platform |
| CN203998856U (en) * | 2014-07-18 | 2014-12-10 | 国家电网公司 | Lifting mode power equipment maintaining device |
| CN204368120U (en) * | 2014-12-17 | 2015-06-03 | 侯正涛 | A kind of automobile plugging brake gear |
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Effective date of registration: 20200902 Address after: No.7, Taiyangshan Road, Changkou Town, Fuyang District, Hangzhou City, Zhejiang Province Applicant after: Zhejiang Jiasheng Machinery Manufacturing Co., Ltd Address before: No. 11, Wangli Natural Village, Taying Administrative Village, Huolonggang Town, Matang District, Wuhu City, Anhui Province, 241000 Applicant before: Hu Xiufeng |
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