CN208829191U - A kind of lifting device - Google Patents

A kind of lifting device Download PDF

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Publication number
CN208829191U
CN208829191U CN201821279616.7U CN201821279616U CN208829191U CN 208829191 U CN208829191 U CN 208829191U CN 201821279616 U CN201821279616 U CN 201821279616U CN 208829191 U CN208829191 U CN 208829191U
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CN
China
Prior art keywords
piston
plunger
elevating mechanism
cylinder body
connecting rod
Prior art date
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.)
Expired - Fee Related
Application number
CN201821279616.7U
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Chinese (zh)
Inventor
郝欣妮
张恒
卫玉芬
张兆东
丁安全
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yangzhou Polytechnic College
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Yangzhou Polytechnic College
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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Priority to CN201821279616.7U priority Critical patent/CN208829191U/en
Application granted granted Critical
Publication of CN208829191U publication Critical patent/CN208829191U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of lifting devices in field of mechanical technique, including pedestal, hydraulic cylinder and several elevating mechanisms, horizontally disposed workbench is connected at the top of the elevating mechanism of the top, in the height direction, between adjacent elevating mechanism, the top of following elevating mechanism and the bottom of elevating mechanism above are hinged, the bottom side of pedestal is fixed with spaced two fixed blocks, hydraulic cylinder includes piston and plunger, piston is the power intake of hydraulic cylinder, one end of hinged pedal connecting rod between two fixed blocks, one end of pedal connecting rod and one end of piston are hinged, one end of piston for stretch out hydraulic cylinder the outer institute of cylinder body at one end, the other end of pedal connecting rod is connected with the foot to extend outside the base and steps on handle, piston can drive the stretching of plunger, the end of plunger and the elevating mechanism of bottom connect;The utility model structure is simple, easy to operate.

Description

A kind of lifting device
Technical field
The utility model belongs to field of mechanical technique, in particular to a kind of lifting device.
Background technique
Hydraulic elevating platform is widely used in present national economy as a kind of aerial work platform, factory, Automated warehouse, parking lot, municipal administration, harbour, building, gardens, finishing, logistics, electric power, traffic, petroleum, chemical industry, hotel, sport High altitude operation and maintenance of shop, industrial and mineral, enterprise etc. etc..
In the prior art, hydraulic elevating platform includes pedestal, hydraulic cylinder and several elevating mechanisms, the top elevating mechanism Top be connected with horizontally disposed workbench, in the height direction, between adjacent elevating mechanism, following elevating mechanism Top and the bottom of elevating mechanism above are hinged, and the extension end of hydraulic cylinder and the driving end of bottom elevating mechanism are hinged, lead to The stretching motion for crossing the extension end of the disengaging oil control hydraulic cylinder of control hydraulic cylinder, needs special hydraulic control system control Hydraulic cylinder movement, hydraulic system is complicated, occupied space.
Utility model content
For the defects in the prior art, the purpose of the utility model is to overcome above-mentioned deficiencies in the prior art Place solves the technical issues of structure is complicated in the prior art, provides a kind of lifting device, and the utility model structure is simple, operation It is convenient.
Purpose of the utility model is realized as follows: a kind of lifting device, including pedestal, hydraulic cylinder and several liftings Mechanism is connected with horizontally disposed workbench at the top of the elevating mechanism of the top, in the height direction, adjacent elevating mechanism Between, the top of elevating mechanism below and the bottom of elevating mechanism above are hinged, and the bottom side of the pedestal is fixed with interval Two fixed blocks being arranged, the hydraulic cylinder include piston and plunger, and the piston is the power intake of hydraulic cylinder, and two solid Determine one end of hinged pedal connecting rod between block, one end of pedal connecting rod and one end of piston are hinged, and one end of piston is to stretch out liquid At one end, the other end of pedal connecting rod is connected with the foot to extend outside the base and steps on handle the outer institute of the cylinder body of cylinder pressure, and the piston can drive The stretching of plunger, the end of plunger and the elevating mechanism of bottom connect.
In the utility model, people loads and unloads corresponding cargo in station on workbench;When needing lifting working platform, foot steps on foot Handle is stepped on, foot is stepped on handle and is moved down, and foot steps on grip strip and moves pedal connecting rod to lower swing, and pedal connecting rod pushes piston rod to be constantly retracted, Under the impetus of piston rod, plunger constantly tilts upward stretching, and plunger drives the rising of elevating mechanism;Elevating mechanism, which rises to, to be needed The height wanted and after fulfiling assignment stops foot and steps on foot to step on handle, gives hydraulic cylinder pressure relief, workbench declines under the effect of gravity, column Plug retracts under the external forces such as workbench, staff, and piston is constantly protruding, and foot steps on handle gradually return, and work is flat After platform return, stop the pressure release of hydraulic cylinder, work terminates;The utility model structure is simple, realizes that the lifting of workbench is convenient; It can be applied in the work of lifting working platform.
In order to further decrease the space of hydraulic system, the hydraulic cylinder further includes outer cylinder body, is equipped in the outer cylinder body The other end of inner cylinder body, one end of the outside connection piston bush of described outer cylinder body one end, the piston and piston bush connects, outer shell It is connected with plunger bushing between the other end of body and the outside of inner cylinder body one end far from piston bush, being sealedly connected in inner cylinder body can The plunger of linear reciprocating motion, the plunger rides stretched out outside inner cylinder body are arranged on plunger bushing, the plunger and elevating mechanism Bottom connection;Oil pocket, the inner cylinder body are formed on the outside of the inner cylinder body, on the inside of outer cylinder body, between piston bush one end and plunger bushing Plunger cavity is formed between inside, piston bush and plunger, forms plunger shaft between the inside and piston of the piston bush other end.
It is described unidirectional equipped with check valve one and check valve two in the piston bush in order to further realize the flexible of plunger The oil inlet of valve one is connected to oil pocket, and the oil outlet of check valve one is connected to plunger shaft;The oil inlet of the check valve two and work Chamber connection is filled in, the oil outlet of check valve two is connected to plunger cavity;It has been slidably connected unloading sleeve on the piston bush, has put in work Unloading sleeve one end in plug sleeve is connected with connecting spring, and the other end of the connecting spring is connect with piston bush, the unloading sleeve On be provided with intercommunicating pore, when pressing unloading sleeve is mobile toward the direction of piston bush, oil pocket connects through the oil inlet of intercommunicating pore and check valve two It is logical.
In order to realize the lifting of workbench, there are two the elevating mechanism is set, the respectively identical lower elevator of structure Structure and upper elevating mechanism, the lower elevating mechanism include outer hinge plate under two, and outer hinge plate is about pedestal in front-rear direction under two On center symmetric setting, the center of the lower outer hinge plate is hinged with lower interior hinge plate, and lower interior hinge plate and lower outer hinge plate are and pedestal Hingedly;The upper elevating mechanism includes two upper outer hinge plates, and the top of the lower interior hinge plate and the bottom end of upper outer hinge plate are hinged, institute Stating the lower outer top for cutting with scissors plate, hingedly the upper interior bottom end for cutting with scissors plate, the upper outer hinge plate and upper interior hinge plate are cut with scissors with the bottom of workbench It connects;In the longitudinal direction, it being fixed with connecting rod between described two lower interior hinge plates, the end of the plunger and connecting rod are hinged, Hinge plate is far from foot-operated handle in lower.
In order to further increase the utility model reliability of structure, it is connected with connecting rod between described two fixed blocks, In the longitudinal direction, connecting plate is fixed on the outside of the pedal connecting rod, the connecting plate is rotatably connected in connecting rod, One end of two extension plates is rotatably coupled in connecting rod, the other end of the extension plate is connect with piston.
In order to further speed up the decrease speed of elevating mechanism, piston one end connecting spring lid of opposite extension plate setting One end, one end of the other end connection power assistant spring of spring cup, the other end of the power assistant spring and the piston bush other end it is outer Side connection.
In order to facilitate mobile the utility model, the pedestal is moveable.
In order to realize the removable of the utility model, the bottom arrangement of the pedestal can be rotated there are four in rectangular layout Wheel.
In order to improve the stationarity that people stands when on workbench, in the lateral direction, the side of the pedestal is fixed with Handrail, the top of handrail is in the top of workbench.
Detailed description of the invention
Fig. 1 is the three-dimensional structure diagram of the utility model.
Fig. 2 is the main view of hydraulic cylinder in the utility model.
Fig. 3 is the B-B direction view in Fig. 2.
Wherein, 1 pedestal, 2 hydraulic cylinders, 201 plungers, 202 plunger bushings, 203 outer cylinder bodies, 204 piston bush, 205 inner cylinder bodies, 206 oil pockets, 207 intercommunicating pores, 208 unloading sleeves, 209 lower thread compounds are stifled, 210 interface channels two, 211 pistons, 212 plunger shafts, and 213 Interface channel one, 214 check valves one, 215 plunger cavities, 216 check valves two, 217 connecting springs, 3 power assistant springs, 4 connecting plates, 5 Pedal connecting rod, 6 fixed blocks, 7 feet step on handle, 8 handrails, 9 workbenches, outer on 10 to cut with scissors plate, 11 wheels, interior hinge plate on 12,13 springs It covers, 14 extension plates, 15 lower outer hinge plates, it is interior under 16 to cut with scissors plate.
Specific embodiment
The utility model is further described with reference to the accompanying drawing.
A kind of lifting device as shown in FIG. 1 to 3, including pedestal 1, hydraulic cylinder 2 and two elevating mechanisms, the top Elevating mechanism at the top of be connected with horizontally disposed workbench 9, in the height direction, between adjacent elevating mechanism, below Elevating mechanism top and elevating mechanism above bottom it is hinged, the bottom side of pedestal 1 be fixed with spaced two it is solid Determine block 6, hydraulic cylinder 2 includes piston 211 and plunger 201, and piston 211 is the power intake of hydraulic cylinder 2, two fixed blocks 6 it Between hinged pedal connecting rod 5 one end, one end of pedal connecting rod 5 and one end of piston 211 are hinged, and specific connection structure is two It is connected with connecting rod between a fixed block 6, in the longitudinal direction, the outside of pedal connecting rod 5 is fixed with connecting plate 4, and connecting plate 4 can It is rotationally connected in connecting rod, one end of two extension plates 14, the other end of extension plate 14 is rotatably coupled in connecting rod It is connect with piston 211;At one end, the other end of pedal connecting rod 5 connects for institute outside cylinder body of the one end of piston 211 to stretch out hydraulic cylinder 2 It is connected to the foot stretched out outside pedestal 1 and steps on handle 7, piston 211 can drive the stretching of plunger 201, the end of plunger 201 and the liter of bottom Descending mechanism connection;There are four rotatable wheels 11 in rectangular layout for the bottom arrangement of pedestal 1;In the lateral direction, pedestal 1 Side be fixed with handrail 8, the top of handrail 8 is in the top of workbench 9.
In order to further decrease the space of hydraulic system, hydraulic cylinder 2 further includes outer cylinder body 203, is equipped in outer cylinder body 203 interior The other end of cylinder body 205, one end of the outside connection piston bush 204 of 203 one end of outer cylinder body, piston 211 and piston bush 204 connects It connects, is connected with plunger bushing 202 between the other end of outer cylinder body 203 and the outside of 205 one end of inner cylinder body far from piston bush 204, The plunger 201 reciprocally to move along a straight line is sealedly connected in inner cylinder body 205, the plunger 201 stretched out outside inner cylinder body 205 supports setting On plunger bushing 202, plunger 201 is connect with the bottom of elevating mechanism;205 outside of inner cylinder body, 203 inside of outer cylinder body, piston bush Oil pocket 206 is formed between 204 one end and plunger bushing 202, forms column between 205 inside of inner cylinder body, piston bush 204 and plunger 201 Chamber 215 is filled in, forms plunger shaft 212 between the inside and piston 211 of 204 other end of piston bush.
In order to further realize the flexible of plunger 201, piston bush 204 is interior to be equipped with check valve 1 and check valve 2 216, The oil inlet of check valve 1 is connected to oil pocket 206, and the oil outlet of check valve 1 is connected to plunger shaft 212;Check valve two 216 oil inlet is connected to plunger shaft 212, and the oil outlet of check valve 2 216 is connected to plunger cavity 215;It can be slided on piston bush 204 It is connected with unloading sleeve 208 dynamicly, 208 one end of unloading sleeve put in piston bush 204 is connected with connecting spring 217, connecting spring 217 other end is connect with piston bush 204, and intercommunicating pore 207 is provided on unloading sleeve 208, presses unloading sleeve 208 toward piston bush 204 Direction it is mobile when, oil pocket 206 is connected to through intercommunicating pore 207 with the oil inlet of check valve 2 216;When not pressing unloading sleeve 208, oil Chamber 206 is not connected to the oil inlet of check valve 2 216;Interface channel between the oil outlet and plunger shaft 212 of check valve 1 One 213 are sealed in piston bush 204 through upper thread compound is stifled, and the connection between the oil inlet and intercommunicating pore 207 of check valve 2 216 is logical Road 2 210 is sealed in piston bush 204 through lower thread compound stifled 209.
In order to realize the lifting of workbench 9, there are two elevating mechanism is set, respectively the identical lower elevating mechanism of structure and Upper elevating mechanism, lower elevating mechanism include it is under two outer cut with scissors plate 15, under two outer hinge plate 15 about pedestal 1 in the longitudinal direction The center of center symmetric setting, lower outer hinge plate 15 is hinged with lower interior hinge plate 16, lower interior hinge plate 16 and lower outer hinge plate 15 with pedestal 1 Hingedly;Upper elevating mechanism includes that plates 10 are cut with scissors outside two upper, and the bottom end of the top of lower interior hinge plate 16 and upper outer hinge plate 10 is hinged, lower outer Hingedly the upper interior bottom end for cutting with scissors plate 12, upper outer hinge plate 10 and upper interior hinge plate 12 are cut with scissors with the bottom of workbench 9 on the top of hinge plate 15 It connects;In the longitudinal direction, be fixed with connecting rod between interior hinge plate 16 under two, the end of plunger 201 and connecting rod are hinged, it is lower in Plate 16 is cut with scissors far from foot-operated handle.
In order to further speed up the decrease speed of elevating mechanism, 211 one end of piston that opposite extension plate 14 is arranged connects bullet One end that spring 217 covers, one end of the other end connection power assistant spring 3 of spring cup 13, the other end and piston bush of power assistant spring 3 The outside of 204 other ends connects.
In the utility model, people loads and unloads corresponding cargo in station on workbench 9;When needing lifting working platform 9, foot is stepped on Foot steps on handle 7, and foot is stepped on handle 7 and moved down, and foot steps on handle 7 and drives pedal connecting rod 5 to lower swing, and pedal connecting rod 5 pushes piston rod continuous It putting in plunger shaft 212, after the oil liquid pressure in plunger shaft 212 is greater than the oil pressure in plunger cavity 215, check valve 2 216 is opened, Oil liquid with pressure enters plunger cavity 215 from plunger shaft 212, pushes plunger constantly to stretch out under pressure, plunger is continuous It stretches out and hinge plate 16 in lower is pushed to be rotated up around the center that lower interior hinge plate 16 is connect with pedestal 1, upper outer hinge plate 10 is in lower interior hinge It is rotated up under the action of plate 16, same principle, upper outer hinge plate 10 and upper interior hinge plate 12 are rotated up simultaneously, upper outer hinge plate 10 The rising of workbench 9 is driven with upper interior hinge plate 12;Continuous foot steps on foot and steps on handle 7, and elevating mechanism constantly rises, when workbench 9 After rising to the height of needs and fulfiling assignment, stopping foot stepping on foot and steps on handle 7, gives 2 pressure release of hydraulic cylinder, is specifically to press off-load Set 208, moves unloading sleeve 208 in piston bush 204, when the oil inlet of intercommunicating pore 207 and plunger cavity 215 and check valve 2 216 When mouth connection, the oil liquid in plunger cavity 215 successively passes through the oil inlet of check valve 2 216 and intercommunicating pore 207 enters oil pocket 206 Interior, to realize the pressure release of plunger cavity 215, workbench 9 declines under the effect of gravity, and plunger 201 constantly retracts, piston 211 The returning quickly under the effect of power assistant spring 3, piston 211 push foot to step on 7 returning quickly of handle, and workbench 9 drops to the height of needs After degree, stop the pressure release of hydraulic cylinder 2, work terminates;The utility model structure is simple, realizes that the lifting of workbench 9 is convenient;Liquid Cylinder pressure 2 is integrated in one with hydraulic system, saves space;It can be applied in the work of lifting working platform 9.
The utility model is not limited to above-described embodiment, on the basis of technical solution disclosed by the utility model, this For the technical staff in field according to disclosed technology contents, not needing creative labor can be special to some of which technology Sign makes some replacements and deformation, these replacements and deformation are in scope of protection of the utility model.

Claims (9)

1. a kind of lifting device, including pedestal, hydraulic cylinder and several elevating mechanisms, the top connection of the elevating mechanism of the top Have horizontally disposed workbench, in the height direction, between adjacent elevating mechanism, the top of elevating mechanism below with above Elevating mechanism bottom it is hinged, which is characterized in that the bottom side of the pedestal is fixed with spaced two fixed blocks, described Hydraulic cylinder includes piston and plunger, and the piston is the power intake of hydraulic cylinder, hinged pedal connecting rod between two fixed blocks One end, one end of pedal connecting rod and one end of piston are hinged, one end of piston for stretch out hydraulic cylinder the outer institute of cylinder body at one end, The other end of pedal connecting rod is connected with the foot to extend outside the base and steps on handle, and the piston can drive the stretching of plunger, the end of plunger It is connect with the elevating mechanism of bottom.
2. a kind of lifting device according to claim 1, which is characterized in that the hydraulic cylinder further includes outer cylinder body, described Be equipped with inner cylinder body in outer cylinder body, one end of the outside connection piston bush of described outer cylinder body one end, the piston and piston bush it is another One end connection, is connected with plunger bushing, inner cylinder body between the other end of outer cylinder body and the outside of inner cylinder body one end far from piston bush It is inside sealedly connected with the plunger reciprocally to move along a straight line, the plunger rides stretched out outside inner cylinder body are arranged on plunger bushing, the column Plug is connect with the bottom of elevating mechanism;It is formed on the outside of the inner cylinder body, on the inside of outer cylinder body, between piston bush one end and plunger bushing oily Chamber forms plunger cavity between the inner cylinder body inside, piston bush and plunger, between the inside and piston of the piston bush other end Form plunger shaft.
3. a kind of lifting device according to claim 2, which is characterized in that be equipped with check valve one and list in the piston bush To valve two, the oil inlet of the check valve one is connected to oil pocket, and the oil outlet of check valve one is connected to plunger shaft;The check valve Two oil inlet is connected to plunger shaft, and the oil outlet of check valve two is connected to plunger cavity;It is slidably connected on the piston bush There is unloading sleeve, the unloading sleeve one end put in piston bush is connected with connecting spring, the other end and piston bush of the connecting spring It connects, intercommunicating pore is provided on the unloading sleeve, when pressing unloading sleeve is mobile toward the direction of piston bush, oil pocket is through intercommunicating pore and unidirectionally The oil inlet of valve two is connected to.
4. a kind of lifting device according to claim 2 or 3, which is characterized in that there are two the elevating mechanism is set, respectively For the identical lower elevating mechanism of structure and upper elevating mechanism, the lower elevating mechanism includes outer hinge plate under two, outer hinge under two The center of center symmetric setting of the plate about pedestal in the longitudinal direction, the lower outer hinge plate is hinged with lower interior hinge plate, lower interior hinge Plate and lower outer hinge plate are hinged with pedestal;The upper elevating mechanism include two it is upper outer cut with scissors plates, the top of the lower interior hinge plate with The bottom end of upper outer hinge plate is hinged, the bottom end of hinge plate, the upper outer hinge plate and upper interior hinge in the top of the lower outer hinge plate is hingedly upper Plate is hinged with the bottom of workbench;In the longitudinal direction, connecting rod, the column are fixed between described two lower interior hinge plates The end of plug and connecting rod are hinged, and lower interior hinge plate is far from foot-operated handle.
5. a kind of lifting device according to claim 4, which is characterized in that be connected with connection between described two fixed blocks Bar is fixed with connecting plate in the longitudinal direction on the outside of the pedal connecting rod, the connecting plate is rotatably connected to connecting rod On, one end of two extension plates is rotatably coupled in connecting rod, the other end of the extension plate is connect with piston.
6. a kind of lifting device according to claim 5, which is characterized in that piston one end connection of opposite extension plate setting One end of spring cup, one end of the other end connection power assistant spring of spring cup, the other end and piston bush of the power assistant spring are another The outside of one end connects.
7. a kind of lifting device according to claim 4, which is characterized in that the pedestal is moveable.
8. a kind of lifting device according to claim 4, which is characterized in that there are four be in square for the bottom arrangement of the pedestal The rotatable wheel of shape arrangement.
9. a kind of lifting device according to claim 4, which is characterized in that in the lateral direction, the side of the pedestal It is fixed with handrail, the top of handrail is in the top of workbench.
CN201821279616.7U 2018-08-09 2018-08-09 A kind of lifting device Expired - Fee Related CN208829191U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821279616.7U CN208829191U (en) 2018-08-09 2018-08-09 A kind of lifting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821279616.7U CN208829191U (en) 2018-08-09 2018-08-09 A kind of lifting device

Publications (1)

Publication Number Publication Date
CN208829191U true CN208829191U (en) 2019-05-07

Family

ID=66308710

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201821279616.7U Expired - Fee Related CN208829191U (en) 2018-08-09 2018-08-09 A kind of lifting device

Country Status (1)

Country Link
CN (1) CN208829191U (en)

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Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20190507

Termination date: 20210809

CF01 Termination of patent right due to non-payment of annual fee