CN104828737A - Self-locking type scissor-fork lifting mechanism - Google Patents
Self-locking type scissor-fork lifting mechanism Download PDFInfo
- Publication number
- CN104828737A CN104828737A CN201510107062.7A CN201510107062A CN104828737A CN 104828737 A CN104828737 A CN 104828737A CN 201510107062 A CN201510107062 A CN 201510107062A CN 104828737 A CN104828737 A CN 104828737A
- Authority
- CN
- China
- Prior art keywords
- self
- locking type
- fork
- yoke
- lifting mechanism
- 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.)
- Pending
Links
Classifications
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
The invention discloses a self-locking type scissor-fork lifting mechanism. The self-locking type scissor-fork lifting mechanism comprises a working platform, outer fork arms, inner fork arms, long supporting seats, guide rails, rolling wheels, short supporting seats, V-shaped transmission connection rods, a power source and a base; each outer fork arms and a corresponding inner fork arm are connected with each other through pin shafts so as to form a scissor-fork-shaped structure; fixed hinges between the inner fork arms and the outer fork arms are movably connected with the V-shaped transmission connection rods; the bottom end of each inner fork arm is connected with a corresponding long supporting seat at one side of the base through a pin shaft; the top end of each V-shaped transmission connection rod is connected with a corresponding short supporting seat at one side of the working platform; the top ends of the inner fork arms are movably connected into guide rails at two sides of the working platform; and two ends of the outer fork arms are movably connected into guide rails at two sides of the base. Full hydraulic transmission is adopted, and therefore, the self-locking type scissor-fork lifting mechanism has the advantages of flexible action and stable operation, and can effectively buffer external impact forces; friction in the device is rolling friction, so that the self-locking type scissor-fork lifting mechanism further has the advantage of high transmission efficiency; and after being unfolded, the self-locking type scissor-fork lifting mechanism can form a stable rigid truss structure, and therefore, the self-locking type scissor-fork lifting mechanism also has the advantage of high folding and unfolding ratio.
Description
Technical field
The present invention relates to a kind of lifting mechanism, specifically a kind of self-locking type scissors fork elevating mechanism.
Background technology
Existing hydraulic efficiency elevation structure, system capacity will through twice conversion, and the accuracy of manufacture of Hydraulic Elements requires high.Space mast lacks rigid support and locking, and stability is low.Will normally use this kind equipment, must ensure accuracy of manufacture and the assembly precision of each parts, otherwise be difficult to realize strict transmitting ratio, fault is frequent, and reason is more difficult to be determined, even can not work.This type lifting table accuracy of manufacture requires the highest, and use, maintenance requirement have certain expertise and higher technical merit.
Summary of the invention
The object of the present invention is to provide a kind of self-locking type scissors fork elevating mechanism, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the invention provides following technical scheme:
A kind of self-locking type scissors fork elevating mechanism, comprise workplatform, outer yoke, interior yoke, long support seat, guide rail, roller, short supporting seat, V-arrangement kinematic link, propulsion source and base, described interior yoke and outer yoke form scissor shape by pinned connection, fixed hinge wherein between interior yoke and outer yoke is connected with V-arrangement kinematic link, and the bottom of interior yoke is by the long support seat of pinned connection base side, the short supporting seat of long support seat of pinned connection workplatform side is passed through on the top of V-arrangement kinematic link; The top of described interior yoke is movably connected in the guide rail on workplatform both sides, and the two ends of outer yoke are movably connected in the guide rail on base both sides.
As the further scheme of the present invention: be equipped with crossbeam between described interior yoke and between outer yoke, and crossbeam bottom outer yoke is flexibly connected hydraulically extensible bar, and hydraulically extensible bar obtain expansion link be flexibly connected in the crossbeam at yoke top.
As the further scheme of the present invention: the top of described interior yoke and the two ends of outer yoke are all connected with roller.
As the present invention's further scheme: the two sides of described interior yoke are installed with hinges, the two sides of outer yoke are installed with fixed hinge.
Compared with prior art, the invention has the beneficial effects as follows:
1, adopt all-hydraulic transmission, be active in one's movements, operate steadily, can effectively cushion external shock power;
2, the friction in device is friction of rolling, and driving efficiency is high;
3, stable rigid truss structure can be formed after launching, and folding Zhan Bi great;
4, bidirectional hydraulic lock is established in loop, can be parked in the optional position within the scope of predetermined stroke and self-locking, and keeps power output constant, and positioning precision high-stroke controls accurately (>=0.5mm);
5, push-pull effort, speed is stepless adjustable, and propulsive effort scope extremely extensively can starting under load, has overload protection function.Power-off for some reason, push rod self-locking, avoids having an accident;
6, full-closed structure, volume is little, oil-tight, and under severe working environment, not dust suction, does not intake, inside not corrosion, long service life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1, in the embodiment of the present invention, a kind of self-locking type scissors fork elevating mechanism, comprise workplatform 1, outer yoke 2, hinges 3, fixed hinge 4, interior yoke 5, long support seat 6, guide rail 7, hydraulically extensible bar 8, roller 9, short supporting seat 10, V-arrangement kinematic link 11, propulsion source 12 and base 13, described interior yoke 5 and outer yoke 2 form scissor shape by pinned connection, fixed hinge 4 wherein between interior yoke 5 and outer yoke 2 is connected with V-arrangement kinematic link 11, and the bottom of interior yoke 5 is by the long support seat 6 of pinned connection base 13 side, the short supporting seat 10 of long support seat of pinned connection workplatform 1 side is passed through on the top of V-arrangement kinematic link 11, thus form fixing supporting construction,
The top of described interior yoke 5 is movably connected in the guide rail 7 on workplatform 1 both sides, and the two ends of outer yoke 2 are movably connected in the guide rail 7 on base 13 both sides, and the top of interior yoke 5 and the two ends of outer yoke 2 are all connected with roller 9, thus make the regulable control of scissor shape lifting mechanism more flexible, the two sides of described interior yoke 5 are installed with hinges 3, the two sides of outer yoke 2 are installed with fixed hinge 4;
Crossbeam is equipped with between described interior yoke 5 and between outer yoke 2, make the activity between them unified, and crossbeam bottom outer yoke 2 is flexibly connected hydraulically extensible bar 8, and hydraulically extensible bar 8 obtains the crossbeam that expansion link is flexibly connected interior yoke 5 top, and the hydraulic efficiency pressure system that hydraulically extensible bar 8 is made up of electrical motor and Hydraulic Pump drives, to be declined workplatform 1 by the stretching, extension of hydraulically extensible bar 8, utilize the contraction of hydraulically extensible bar 8 to the workplatform 1 that rises.
Direct motor drive Hydraulic Pump, to hydraulically extensible bar 8 pressure oil output, delivers to oil cylinder through fluid control valve.Fluid control valve group is according to operating characteristic, and design transmission accuracy is high, control is accurate, the good multi-functional oil circuit combine valve of self-locking performance, realizes hydraulically extensible bar crank motion
Principle of work of the present invention is: utilize V-arrangement kinematic link 11 as a fixing supporting point, and the movable supporting point that the interior yoke 5 of cooperation activity and outer yoke 2 are formed supports workplatform 1, thus makes and roll over to open up than maximum.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or essential characteristic, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the present invention.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this specification sheets is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of specification sheets is only for clarity sake, those skilled in the art should by specification sheets integrally, and the technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
Claims (4)
1. a self-locking type scissors fork elevating mechanism, comprise workplatform, outer yoke, interior yoke, long support seat, guide rail, roller, short supporting seat, V-arrangement kinematic link, propulsion source and base, it is characterized in that, described interior yoke and outer yoke form scissor shape by pinned connection, fixed hinge wherein between interior yoke and outer yoke is connected with V-arrangement kinematic link, and the bottom of interior yoke is by the long support seat of pinned connection base side, the short supporting seat of long support seat of pinned connection workplatform side is passed through on the top of V-arrangement kinematic link; The top of described interior yoke is movably connected in the guide rail on workplatform both sides, and the two ends of outer yoke are movably connected in the guide rail on base both sides.
2. a kind of self-locking type scissors fork elevating mechanism according to claim 1, it is characterized in that, be equipped with crossbeam between described interior yoke and between outer yoke, and crossbeam bottom outer yoke be flexibly connected hydraulically extensible bar, and hydraulically extensible bar obtain expansion link be flexibly connected in the crossbeam at yoke top.
3. a kind of self-locking type scissors fork elevating mechanism according to claim 1, is characterized in that, the top of described interior yoke and the two ends of outer yoke are all connected with roller.
4. a kind of self-locking type scissors fork elevating mechanism according to claim 1, is characterized in that, the two sides of described interior yoke are installed with hinges, the two sides of outer yoke are installed with fixed hinge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510107062.7A CN104828737A (en) | 2015-03-12 | 2015-03-12 | Self-locking type scissor-fork lifting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510107062.7A CN104828737A (en) | 2015-03-12 | 2015-03-12 | Self-locking type scissor-fork lifting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104828737A true CN104828737A (en) | 2015-08-12 |
Family
ID=53807004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510107062.7A Pending CN104828737A (en) | 2015-03-12 | 2015-03-12 | Self-locking type scissor-fork lifting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104828737A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108275607A (en) * | 2018-01-30 | 2018-07-13 | 海宁杰盛新材料有限公司 | A kind of installation equipment for advertising lamp box |
| CN108454214A (en) * | 2017-02-21 | 2018-08-28 | 江苏远华轻化装备有限公司 | A kind of laminating machine |
| CN108609521A (en) * | 2018-06-11 | 2018-10-02 | 河南森源电气股份有限公司 | A kind of scissor-type lifting platform |
| CN110203845A (en) * | 2019-05-30 | 2019-09-06 | 广州高昌机电股份有限公司 | A kind of hydraulic control system for four column lifting mechanisms |
| CN110872083A (en) * | 2018-09-03 | 2020-03-10 | 鹏亚机械科技（上海）有限公司 | Lifting platform |
| US11427441B2 (en) | 2020-07-23 | 2022-08-30 | Otis Elevator Company | Elevator car with foldable working platform |
-
2015
- 2015-03-12 CN CN201510107062.7A patent/CN104828737A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108454214A (en) * | 2017-02-21 | 2018-08-28 | 江苏远华轻化装备有限公司 | A kind of laminating machine |
| CN108275607A (en) * | 2018-01-30 | 2018-07-13 | 海宁杰盛新材料有限公司 | A kind of installation equipment for advertising lamp box |
| CN108609521A (en) * | 2018-06-11 | 2018-10-02 | 河南森源电气股份有限公司 | A kind of scissor-type lifting platform |
| CN110872083A (en) * | 2018-09-03 | 2020-03-10 | 鹏亚机械科技（上海）有限公司 | Lifting platform |
| CN110872083B (en) * | 2018-09-03 | 2023-07-14 | 鹏亚机械科技（上海）有限公司 | Lifting platform |
| CN110203845A (en) * | 2019-05-30 | 2019-09-06 | 广州高昌机电股份有限公司 | A kind of hydraulic control system for four column lifting mechanisms |
| US11427441B2 (en) | 2020-07-23 | 2022-08-30 | Otis Elevator Company | Elevator car with foldable working platform |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104828737A (en) | Self-locking type scissor-fork lifting mechanism | |
| CN104021718A (en) | Closed-loop subchain contained three-freedom-degree parallel swing platform | |
| CN205363812U (en) | Parallelly connected principal and subordinate hybrid -driven diaxon antenna test tilter mechanism | |
| CN201998962U (en) | Electromechanical leveling support leg | |
| CN106800254B (en) | A kind of elastic auxiliary actuating apparatus of horizontal drive Fork lifting platform | |
| CN203159132U (en) | Reloading shear fork lift platform driven by four symmetrical cylinders | |
| CN201545664U (en) | Electric scissors type elevator | |
| CN202609864U (en) | Elevator | |
| CN106315454B (en) | A kind of straight line elevating mechanism | |
| CN202766218U (en) | Lifting device driven by electric-hydraulic pusher | |
| CN105293319A (en) | Supporting leg telescoping linkage mechanism | |
| CN104985591A (en) | Six-freedom-degree parallel mechanism achieving complete decoupling of rotating and moving | |
| CN111181306A (en) | Multi-section worm cylinder | |
| CN210944693U (en) | Large-span synchronous hydraulic elevator | |
| CN203386884U (en) | Novel radar antenna vertical lift mechanism | |
| KR102594177B1 (en) | Upright thrust actuator using chain direction conversion and upward thrust device using the same | |
| CN202536529U (en) | Retractable long table | |
| CN220223431U (en) | Cylinder cun axle jacking self-locking device | |
| CN217318006U (en) | Underwater telescopic platform based on hydraulic drive | |
| CN217263053U (en) | Longitudinal guide rail sliding mechanism | |
| CN219669262U (en) | Cheng Liangan increasing mechanism | |
| CN218875120U (en) | Two-way pusher dog kickoff of rail constructs | |
| CN211847053U (en) | Vehicular lift operation platform | |
| CN212246072U (en) | Pneumatic lifting mechanism | |
| CN112850588B (en) | Synchronous unfolding and folding mechanism with four supporting legs |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150812 |
|
| WD01 | Invention patent application deemed withdrawn after publication |