CN2808865Y

CN2808865Y - Combined scissors type retractable lifting mechanism

Info

Publication number: CN2808865Y
Application number: CN 200420114900
Authority: CN
Inventors: 倪既民
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-12-25
Filing date: 2004-12-25
Publication date: 2006-08-23
Anticipated expiration: 2014-12-25

Abstract

The utility model relates to a combined scissors type retractable lifting mechanism which is composed of two to a plurality of scissors by mutual jointing and combination at definite included angle through a lapping and jointing device to form two columns to a plurality of columns combined scissors type retractable lifting mechanisms, and the included angle of a scissor rod is jointly altered to realize retractable lifting support. The combined scissors type retractable lifting mechanism uses scissor columns which skillfully joint and mutually interact and jointly support to relieve self weight for enhancing firmness and improving load-bearing efficacy. Compared with the scissors type lifting mechanism or product in the prior art, the combined scissors type retractable lifting mechanism has novel and unique style, wide and various application range, simple and stable mechanical structure, favorable and reasonable mechanism characteristic, strong and stable load support, and stable and reliable lifting and retraction; the combined scissors type retractable lifting mechanism saves material, reduces cost, eliminates waste and opens up a new application of scissors. When matched with various drives, such as liquid pressure, a cord chain, etc., the combined scissors type retractable lifting mechanism can be used for various working devices, such as a lifting ladder, a lifting table, a lifting pole, a lifter, etc., and can entirely serve the fields, such as construction work of architectural decoration construction, etc., a mechanical device for hoisting, lifting and transport, a pylon card frame with variable hoisting and lifting, etc.

Description

Supporting, expanding and lifting mechanism for combined shear fork

The utility model relates to a kind of shearing fork telescopic mechanism to be improved.Especially supporting, expanding and lifting mechanism for combined shear fork.

In existing technology, cut fork with one and use rather commonly as expanding and lifting mechanism to a plurality of fork row cut of cutting the stacked formation of fork, especially the telescopic lifting that connects two row parallel shears fork by parallel rod supports, and is widely used in daily; Be equipped with drivings such as hydraulic actuating cylinder air cylinder, this fork type elevator, bay-lift etc. form series of products already, and various device or operation field such as be applied to ascending a height, promote, transport.Resembling Chinese patent " a kind of autocontrol hydraulic lifting ladder " 95209483.5, " wall tunnel type hydraulic elevating platform " 03229183.8 etc. all is to place position very to drive the lifting support that is connected two row parallel shears fork by parallel rod hydraulic actuating cylinder.But, this class parallel shears fork the be disbursed from the cost and expenses lifting mechanism or the product of support, the practical function of parallel rod only is equal to widens the scissors rod banner, and real passive still two row scissors rods only are so bracing force is very limited; And parallel rod and two row parallel shears fork be connected quite firm stable, it is considerable to cause that material expends the body heaviness, cost increases waste; Moreover such mechanism's rising back whole structural stability is poor, rocks big and is difficult to and prevent.

The purpose of this utility model is that a kind of supporting, expanding and lifting mechanism for combined shear fork or device will be provided, and the connection combination of using novelty makes cuts fork row interphase interaction rock-steady structure, collaborative supporting increase effect; It utilizes overlapper that two are formed an angle and are coupled to each other combination to several fork row cut, and forms two and is listed as to the supporting, expanding and lifting mechanism for combined shear fork of multiple row combination form, realizes steadily that with common change scissors rod angle telescopic lifting supports efficiently.

The purpose of this utility model is achieved in that supporting, expanding and lifting mechanism for combined shear fork is coupled to each other combination by overlapper with certain angle by two extremely several fork row of cutting, form the two telescopic lifting supporting mechanisms that are listed as to the multiple row combination form, during work, realize steadily that by all common scissors rod angles that changes of fork row of cutting telescopic lifting supports efficiently.It can be cut the fork row by two and be coupled to each other the two row combination form supporting, expanding and lifting mechanism for combined shear fork that form V-arrangement by overlapper; Can cut the fork row by three and be coupled to each other combination, form the supporting, expanding and lifting mechanism for combined shear fork of triangle, Y shape, N shape, U-shaped or the like three row combination forms by overlapper; Can be coupled to each other by overlapper and form rectangle, prismatic, trapezoidal, X-shaped, W shape, polygon or the like combination in any by a plurality of fork row cut, form the supporting, expanding and lifting mechanism for combined shear fork of multiple row combination form, and by two scissors mechanisms to the independent combination of several V-arrangements, triangle, polygon or the like through disjunctor overlap joint or discrete set combination, form more multi-class multiple row combination form supporting, expanding and lifting mechanism for combined shear fork, thereby the telescopic lifting of realizing various bearing surface areas and bearing capacity supports.Use fixed angle or variable-angle pattern in order to the overlapper that connects the combined scissors fork row in the supporting, expanding and lifting mechanism for combined shear fork, two to more overlap joint mouths are set according to combination form needs overlapper.

Supporting, expanding and lifting mechanism for combined shear fork will be cut the fork row by overlapper and be coupled to each other combination with certain included angle, make to cut to pitch the collaborative supporting of ingenious overlap joint mutual action between row, support steadiness and be doubled and redoubled with the carrying effect.Its economical with materials alleviates deadweight, cost-cutting is eliminated waste, has opened up and has cut the new world that fork is used.Adapted hydraulic-pneumatic, screw rod tooth bar, cable wire iron chains or the like all kinds of drivings, it can be widely used in various companion ladders, bay-lift, lifting column, elevator or the like implement, can serve construction work such as building decoration, lifting promotes the mechanical equipment that transports, the fields such as king-post board frame that lifting moving changes comprehensively.

Below in conjunction with the signal accompanying drawing principle of compositionality of the present utility model and embodiment are described further:

In the accompanying drawing: (1) for cutting the fork row, (2) are overlapper, and (3) are base, and (4) are that slideway (5) is the lifting top board, and (6) are the overlap joint mouth, and (7) are the angle axle.

Two scissors rods intersect to form one and cut fork, cut fork or a plurality ofly cut the stacked formation one of fork and cut fork row (1) for one; Cut fork row (1) and realize that with the angle of common change scissors rod telescopic lifting supports; Supporting, expanding and lifting mechanism for combined shear fork is by making up with the connection of various types and realize that steadily telescopic lifting supports efficiently to several fork row (1) of cutting two; It can be that the scissors rod equal in length is cut combination between fork row (1), also several different scissors rod length can be cut fork row (1) combination, the special fork row (1) [as the trapezoidal fork row (1) etc. of cutting] of cutting of the stacked formation of the different scissors rods of length can also be made up.Application overlapper (2) realizes cutting fork row (1) pattern connection combination arbitrarily, is the key of supporting, expanding and lifting mechanism for combined shear fork performance performance advantage.Overlapper (2) can be that the fixed angle pattern also can be the variable-angle pattern, and overlap joint mouthful (6) can be provided with two to more as required.Accompanying drawing 5, Fig. 6, Fig. 7, Fig. 8 exemplify four kinds of fixed angle type overlapper (2); Accompanying drawing 9, Figure 10, Figure 11 are three kinds of variable-angle type overlapper of illustration (2), and the overlap joint mouth (6) of variable-angle type overlapper (2) can depend on according to angle axle (7) rotation and change angle among the figure.In practicing, no matter decide its structural style of overlapper (2) and overlap joint mouthful (6) quantity etc. of angle or angle and also can do many variations according to actual needs, such as set up the pedal of climbing usefulness or handle or the like.Base (3) is the connection basis that practices supporting, expanding and lifting mechanism for combined shear fork, and base (3) can be adorned and invest location occasion or machine equipment, also can add wheel or be installed on various types of vehicles and move with convenient, flexible.Slideway (4) is a kind of mode that mechanism connects base (3) and lifting top board (5), according to the specific needs of various application, and the variation displacement track setting of all moving fulcrums when slideway (4) can be cut fork row (1) combination according to various types.Lifting top board (5) is a service platform or function device loading surface, and it is the table top that can become different shape, can arrange the various fences of installing, cab, equipment etc.

Accompanying drawing 1 is that a kind of cutting by two pitched the two row combination forms combination telescopic lifting supporting mechanism exemplifying embodiment that row (1) connection is combined to form V-arrangement; The V-arrangement angle can be set arbitrarily according to actual needs in the enforcement.Accompanying drawing 2 is a kind ofly to cut fork row (1) by three and connect and be combined to form leg-of-mutton three row combination forms combination telescopic lifting supporting mechanism exemplifying embodiment; Cut fork row (1) by three and also can connect the supporting, expanding and lifting mechanism for combined shear fork that is combined into Y shape, U-shaped, N shape or the like multiple three row combination forms by overlapper (2).Accompanying drawing 3 is that a kind of cutting by four pitched the multiple row combination form combination telescopic lifting supporting mechanism exemplifying embodiment that row (1) connection is combined to form rectangle; In the enforcement, by a plurality of cut fork row (1) be coupled to each other the multiple row combination form supporting, expanding and lifting mechanism for combined shear fork that forms by overlapper (2) more can be ever-changing, formation prismatic also capable of being combined, trapezoidal, X-shaped, W shape, polygon or the like be combination form arbitrarily.Accompanying drawing 4 is supporting, expanding and lifting mechanism for combined shear fork exemplifying embodiments of another kind of multiple row combination form, it is cut the fork contigency by four and connects and form two discrete V-arrangement combination mechanisms, by base (4) and lifting top board (5) location set integrator, form the multiple row combination form supporting, expanding and lifting mechanism for combined shear fork of 2 set, it can satisfy the actual demand that large tracts of land top load telescopic lifting supports.Example is analogized in view of the above, equally also can become the supporting, expanding and lifting mechanism for combined shear fork of or multiple spot type at 2 through disjunctor overlap joint or discrete set to combined scissors fork mechanisms such as several V-arrangements, triangle, triangle, polygon in the enforcement, satisfy the actual techniques demand of various telescopic lifting area and carrying total amount or the like by two.Select the most brief optimal array configuration for use with characteristics according to actual needs, just can make supporting, expanding and lifting mechanism for combined shear fork reach maximum application benefit.

Claims

1, a kind ofly connects the supporting, expanding and lifting mechanism for combined shear fork that constitutes, it is characterized in that: be coupled to each other and constitute by cutting fork row (1) and overlapper (2) by cutting fork row and overlapper.

2, supporting, expanding and lifting mechanism for combined shear fork according to claim 1 is characterized in that: the described fork row (1) of cutting are cut fork or are a plurality ofly cut that fork is stacked to be constituted by one.

3, supporting, expanding and lifting mechanism for combined shear fork according to claim 1 is characterized in that: described overlapper (2) is provided with two to more overlap joints mouthful (6), and overlap joint is fixed angle or variable-angle pattern between mouthful (6).

4, supporting, expanding and lifting mechanism for combined shear fork according to claim 1 is characterized in that: described supporting, expanding and lifting mechanism for combined shear fork is constituted through overlapper (2) connection by two extremely a plurality of fork row (1) of cutting.