CN108584777B - Scissor type hydraulic lifter - Google Patents
Scissor type hydraulic lifter Download PDFInfo
- Publication number
- CN108584777B CN108584777B CN201810607384.1A CN201810607384A CN108584777B CN 108584777 B CN108584777 B CN 108584777B CN 201810607384 A CN201810607384 A CN 201810607384A CN 108584777 B CN108584777 B CN 108584777B
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- CN
- China
- Prior art keywords
- base
- limiting
- support arm
- driving
- supporting arms
- 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.)
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- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 230000033001 locomotion Effects 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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
- B66F7/06—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
-
- 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
-
- 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
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Handcart (AREA)
- Invalid Beds And Related Equipment (AREA)
- Types And Forms Of Lifts (AREA)
Abstract
The invention relates to a scissor type hydraulic lifter which comprises a base, a bearing platform, supporting arms, a driving mechanism and a limiting component, wherein the supporting arms are positioned on two sides of the base and are in a scissor type, the driving mechanism drives the supporting arms to relatively unfold or fold, the limiting component is arranged on the base and used for protecting the unfolding state of the supporting arms, the limiting component comprises a limiting rod positioned on one side of the supporting arms, and a limiting block movably arranged on the limiting rod, when the supporting arms are unfolded to the height of a required position, the limiting block is driven by the limiting rod to slide towards the end part of the supporting arms, which is arranged on the base, along the length direction of the limiting rod and is in contact with the end part. According to the invention, the limiting block moves and abuts against the end part of the supporting arm sliding on the base to form a limiting protection effect, so that safety accidents can not occur even when hydraulic faults occur, and the use safety performance of the elevator is greatly enhanced.
Description
Technical Field
The invention belongs to the field of elevator products, and particularly relates to a scissor type hydraulic elevator.
Background
As is well known, the hydraulic lifter comprises a base, a bearing platform, supporting arms which are arranged at two sides of the base in an inner-outer crossing manner, and a driving mechanism for driving the supporting arms to relatively unfold or fold.
However, when the support arm is unfolded and stays in a certain state, the lift is in a very dangerous state by the pressure support of the hydraulic cylinder or the air cylinder, that is, once the emergency occurs and the hydraulic pressure rapidly loses the supporting force, so that a great potential safety hazard exists.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects of the prior art and providing an improved scissor type hydraulic lifter capable of reducing the occurrence probability of safety accidents when dealing with hydraulic faults.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a cut fork hydraulic elevator, it includes the base, load-bearing platform, be located the base both sides and be the support arm of cutting fork, drive support arm relative expansion or the actuating mechanism who draws in, set up the spacing subassembly that is used for protecting the support arm expansion state on the base, wherein spacing subassembly is including being located the gag lever post of support arm one side, the stopper of setting on the gag lever post that can move about, when the support arm expands to the required position height, under the drive of gag lever post, the stopper moves and contradicts this tip at the base along gag lever post length direction to support arm slip setting.
Preferably, a limiting groove extending along the length direction of the limiting rod is formed in the base, and the limiting block is slidably arranged on the limiting groove.
According to one specific implementation and preferred aspect of the invention, the limiting rod is a screw rod capable of rotating around the axis direction of the limiting rod, the limiting block is a nut which is matched with the screw rod and moves back and forth on the screw rod and the limiting groove, and the length of the screw rod is larger than that of the sliding track of the supporting arm on the base.
Preferably, the limiting assembly further comprises a driving hand wheel arranged at the end part of the screw rod, out of the base. Therefore, the movement of the limiting block is realized through a manual rotation mode.
Further, the limiting assembly further comprises a driving unit used for driving the driving hand wheel to rotate positively and negatively and a control unit capable of being communicated with the driving mechanism, wherein after the control unit obtains the motion information of the driving mechanism, a steering instruction can be issued to the driving unit so as to realize the motion of the limiting block.
Specifically, the limiting block moves synchronously along with the movement of the driving mechanism, and the limiting block always abuts against the end part of the support arm, which is arranged on the base in a sliding manner.
Preferably, the limit components are in two groups and are respectively and correspondingly arranged on the side edge of the support arm.
Specifically, the spacing subassembly is located the outside of support arm.
In addition, the front end part of the base is also provided with an installation seat positioned above the ground, and the lifter further comprises wheels positioned at the bottom of the base and a transmission assembly arranged on the installation seat and used for driving the wheels close to the installation seat to rotate.
Simultaneously, the lift still includes the supporting legs that rotate the setting on the base can erect whole lift level subaerial.
Due to the implementation of the technical scheme, compared with the prior art, the invention has the following advantages:
according to the invention, the limiting block moves and abuts against the end part of the supporting arm sliding on the base to form a limiting protection effect, so that safety accidents can not occur even when hydraulic faults occur, and the use safety performance of the elevator is greatly enhanced.
Drawings
FIG. 1 is a schematic front view of an elevator according to the present invention (in an extended state);
wherein: 1. a hydraulic elevator; 10. a base; 11. a load-bearing platform; 12. a support arm; 13. a driving mechanism; 14. a limit component; 140. a limit rod; 141. a limiting block; 142. a driving wheel; 15. a mounting base; 16. a wheel; 17. a transmission assembly; 18. supporting feet; 19. hydraulic pump station or electric cabinet.
Detailed Description
The invention will now be described in further detail with reference to the drawings and to specific examples.
In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is, however, susceptible of embodiment in many other forms than those described herein and similar modifications can be made by those skilled in the art without departing from the spirit of the application, and therefore the application is not to be limited to the specific embodiments disclosed below.
In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.
In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Referring to fig. 1, the hydraulic lifter 1 provided in this embodiment includes a base 10, a carrying platform 11, supporting arms 12 positioned at two sides of the base 10 and shaped like a scissor fork, a driving mechanism 13 for driving the supporting arms 12 to relatively open or close, and a limiting assembly 14 disposed on the base 10 for protecting the open state of the supporting arms 12.
The limiting assembly 14 comprises a limiting rod 140 positioned at one side of the supporting arm 12 and a limiting block 141 movably arranged on the limiting rod 140, when the supporting arm 12 is unfolded to a height at a required position, the limiting block 141 is driven by the limiting rod 140 to move towards the end part of the supporting arm 12, which is slidably arranged on the base 10, along the length direction of the limiting rod 140 and is abutted against the end part (the end part of the supporting arm 12, which is slidably arranged on the base 10).
Specifically, the base 10 is provided with a stopper groove (not shown but not easily understood) extending along the length direction of the stopper rod 140, and the stopper 141 is slidably disposed in the stopper groove.
In this example, the limiting rod 140 is a screw rod capable of rotating around its axis, the limiting block 141 is a nut that cooperates with the screw rod 140 and moves back and forth on the screw rod and the limiting groove, where the length of the screw rod is greater than the length of the sliding track of the supporting arm 12 on the base 10.
The spacing assembly 14 also includes a drive hand wheel 142 disposed at the end of the lead screw exiting the base 10. Therefore, the movement of the limiting block is realized through a manual rotation mode.
However, for intelligent control, in this example, the limiting assembly 14 further includes a driving unit (not shown) for driving the driving hand wheel 142 to rotate in opposite directions, and a control unit (not shown) capable of communicating with the driving mechanism, where after the control unit obtains the motion information of the driving mechanism, a steering command can be issued to the driving unit to implement the motion of the limiting block.
Specifically, the limiting block 141 moves synchronously along with the movement of the driving mechanism, and the limiting block 141 is always in contact with the end portion of the support arm and slidably arranged on the base.
Meanwhile, the limiting assemblies 14 are two groups and are respectively and correspondingly arranged on the side edges of the supporting arms 12.
Specifically, the limiting assemblies 14 are symmetrically disposed outside the two sets of support arms 12.
In this example, when the intelligent control (i.e. automatic control) is performed, the limiting blocks 141 on both sides move synchronously along with the expansion of the supporting arm 12, and the limiting blocks 141 are always abutted against the end of the supporting arm 12 and slidably arranged on the base 10; meanwhile, when the support arms 12 are folded, the limiting blocks 141 positioned on two sides synchronously retreat, and the limiting blocks 141 are always in contact with the end parts of the base 10 in a sliding manner on the support arms 12, so that the limiting blocks 141 can prevent the relative folding movement of the support arms 12 from driving no matter the support arms 12 stay in any unfolding state, a safety protection barrier is formed, the service life of the driving mechanism 13 is prolonged, and the lifting process is stable.
When the support arm 12 is unfolded to the required position in the manual mode, the driving hand wheel 142 is manually rotated, so that the limiting block 141 moves towards the end portion of the support arm 12 slidably arranged on the base 10 and abuts against the end portion, and a safety guarantee is formed.
In addition, a mounting seat 15 is arranged at the front end part of the base 10 and is positioned above the ground, and the lifter further comprises wheels 16 positioned at the bottom of the base 10 and a transmission assembly 17 arranged on the mounting seat 15 and used for driving the wheels 16 close to the mounting seat 15 to rotate.
Then, a hydraulic pump station or an electric cabinet 19 may be provided at the mounting base 15.
Meanwhile, the above-mentioned lifter 1 further includes a supporting leg 18 rotatably provided on the base 10 to horizontally erect the entire lifter 1 on the ground, wherein the supporting of the supporting leg 18 is provided as a conventional means in the art, which will not be described in detail herein.
The present invention has been described in detail with the purpose of enabling those skilled in the art to understand the contents of the present invention and to implement the same, but not to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.
Claims (7)
1. The utility model provides a cut fork hydraulic lift, its includes base, load-bearing platform, is located the base both sides are the support arm of cutting fork, drive the support arm relatively expand or the actuating mechanism who draws in, its characterized in that: the elevator still including setting up be used for the protection on the base the spacing subassembly of support arm expansion state, spacing subassembly including being located gag lever post, the movable setting of support arm one side are in stopper on the gag lever post be equipped with on the base along gag lever post length direction extends's spacing groove, the stopper slidingly set up on the spacing groove, the gag lever post be can around self axle center direction pivoted lead screw, the stopper be with the lead screw cooperation, and at the lead screw with the nut of round trip movement on the spacing groove, wherein the length of lead screw is greater than the length of support arm in the length of slide path on the base, the elevator still including rotating the setting and can be with whole the support leg that the elevator level was erect subaerial, when the support arm expand to required position height under the drive of gag lever post, the stopper along gag lever post length direction to the support arm slip setting is in the tip of base removes and this end.
2. The scissor hydraulic lift of claim 1, wherein: the limiting assembly further comprises a driving hand wheel arranged at the end part of the screw rod, which protrudes out of the base.
3. A scissor hydraulic lift as claimed in claim 2, characterized in that: the limiting assembly further comprises a driving unit used for driving the driving hand wheel to rotate forwards and backwards and a control unit capable of being communicated with the driving mechanism, wherein after the control unit obtains the motion information of the driving mechanism, a steering instruction can be issued to the driving unit so as to realize the motion of the limiting block.
4. A scissor hydraulic lift according to claim 3, characterized in that: the limiting block moves synchronously along with the movement of the driving mechanism, and is always abutted against the end part of the support arm, which is arranged on the base in a sliding way.
5. The scissor hydraulic lift of claim 1, wherein: the limiting assemblies are arranged in two groups and are respectively and correspondingly arranged on the side edge where the supporting arm is located.
6. The scissor hydraulic lift of claim 5, wherein: the limiting component is positioned at the outer side of the supporting arm.
7. The scissor hydraulic lift of claim 1, wherein: the front end part of the base is also provided with a mounting seat positioned above the ground, and the lifter further comprises wheels positioned at the bottom of the base and a transmission assembly arranged on the mounting seat and used for driving the wheels close to the mounting seat to rotate.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311181068.XA CN117342469A (en) | 2018-06-13 | 2018-06-13 | Safety limiting assembly of hydraulic lifter and emergency safety protection process |
| CN201810607384.1A CN108584777B (en) | 2018-06-13 | 2018-06-13 | Scissor type hydraulic lifter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810607384.1A CN108584777B (en) | 2018-06-13 | 2018-06-13 | Scissor type hydraulic lifter |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311181068.XA Division CN117342469A (en) | 2018-06-13 | 2018-06-13 | Safety limiting assembly of hydraulic lifter and emergency safety protection process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108584777A CN108584777A (en) | 2018-09-28 |
| CN108584777B true CN108584777B (en) | 2023-07-28 |
Family
ID=63628289
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810607384.1A Active CN108584777B (en) | 2018-06-13 | 2018-06-13 | Scissor type hydraulic lifter |
| CN202311181068.XA Pending CN117342469A (en) | 2018-06-13 | 2018-06-13 | Safety limiting assembly of hydraulic lifter and emergency safety protection process |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311181068.XA Pending CN117342469A (en) | 2018-06-13 | 2018-06-13 | Safety limiting assembly of hydraulic lifter and emergency safety protection process |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN108584777B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109394142B (en) * | 2018-12-14 | 2023-09-15 | 佛山市顺德区美的洗涤电器制造有限公司 | Lifting device and household appliance |
| CN109775602A (en) * | 2019-02-18 | 2019-05-21 | 卓学龙 | A kind of kart maintenance lifting machine facilitating storage and transportation |
| CN112357818A (en) * | 2020-11-27 | 2021-02-12 | 德清县下舍五金机械厂 | Production conveyer of high pressure sprayer |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29815973U1 (en) * | 1998-09-09 | 1998-12-03 | Herkules Hebetechnik Gmbh | Lifting platform, in particular motor vehicle lifting platform |
| DE102008024051A1 (en) * | 2008-05-16 | 2009-11-19 | Maha Maschinenbau Haldenwang Gmbh & Co. Kg | locking device |
| CN203284135U (en) * | 2013-05-14 | 2013-11-13 | 温岭市大成汽车配件有限公司 | Lockable scissor type mechanical lifting platform |
| KR20160030778A (en) * | 2014-09-11 | 2016-03-21 | (주)이니텍엔지니어링 | Repair Car lift device |
| CN204999557U (en) * | 2015-09-01 | 2016-01-27 | 江西绿阳光学仪器制造有限公司 | Method for operating a fork -lift truck |
| CN205916970U (en) * | 2016-08-25 | 2017-02-01 | 湖州埭溪振华工贸有限公司 | Lift truck can only be locked to mechanical type |
| CN206476702U (en) * | 2016-10-18 | 2017-09-08 | 宁波宏普机械制造有限公司 | One kind is ultra-thin to cut lifting machine |
| CN206901680U (en) * | 2017-06-16 | 2018-01-19 | 常州工程职业技术学院 | A kind of hydraulic elevating platform with lockable mechanism |
| CN208532114U (en) * | 2018-06-13 | 2019-02-22 | 苏州市康鼎升降机械有限公司 | Fork hydraulic elevator |
-
2018
- 2018-06-13 CN CN201810607384.1A patent/CN108584777B/en active Active
- 2018-06-13 CN CN202311181068.XA patent/CN117342469A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN108584777A (en) | 2018-09-28 |
| CN117342469A (en) | 2024-01-05 |
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