CN2349190Y

CN2349190Y - Lifting machine

Info

Publication number: CN2349190Y
Application number: CN 98238856
Authority: CN
Inventors: 董晓波; 林青
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-09-10
Filing date: 1998-09-10
Publication date: 1999-11-17
Anticipated expiration: 2008-09-10

Abstract

The utility model relates to a lifting device, particularly a vertically lifting elevator with a fluid operated platform, which is formed by the connection of a platform, a base and a telescopic bracket connected between the platform and the base to form a telescopic frame, a hydraulic drive mechanism and a self-locking mechanism. The utility model is characterized in that the utility model is used in vehicle repair industry. When the lifting work is not needed, the platform can be dropped down to the same flat surface as the ground, so the elevator need not occupy extra ground and working space. The adopted fluid operation can realize manual control lifting, so that the elevator can work even without a power source. The utility model has the advantages of safe and reliable use and simple operation.

Description

Gig

The utility model relates to a kind of bont, particularly can be made the gig of vertical lift by the hydraulic actuated platform.

In motor repair trade, often adopt flame elevator lifting car waiting to repair.The deficiency of this elevator is: the column of elevator occupies certain place and working space, and in the time need not promoting repairing, the existence of column is not easy to the heavy repair task of other project, thereby causes the idle of place; Adopt the motor-driven jacking system, the operation more complicated, when power failure or electrical accident occurring, elevator can't operation.

The purpose of this utility model is to provide a kind of hydraulic actuated and telescopic gig.

The purpose of this utility model is achieved in that gig comprises support, driver train, its special character is to be connected with the mutual corresponding telescope support that is provided with between platform and base, wherein mutually corresponding and upper and lower fulcrum that be positioned at a side is connected with base with platform respectively, mutually corresponding and upper and lower fulcrum that be positioned at opposite side is connected on the upper and lower sheave shaft, upper and lower sheave shaft then be arranged on platform and be connected with pulley in the slideway of base both sides, constitute thus can vertical lift flexible framework.The hydraulic actuating cylinder of hydraulic drive mechanism is arranged in the flexible framework, and the bottom of hydraulic actuating cylinder is connected on the base, and hydraulic cylinder piston rod is connected with the telescope support that is positioned at its both sides through the axis of the piston on top.The utility model also includes self-locking mechanism, and it is made of tooth bar and detent.One end of the tooth bar that be arranged in parallel with piston rod is connected on the hydraulic cylinder piston axle, and the guiding tooth cover of the other end through being arranged on the hydraulic cylinder stretches out.The detent axle is connected on the ratchet holder that is positioned on the hydraulic cylinder, and the one end inserts the between cog of tooth bar, and the other end is connected with the spring that tooth bar contacts all the time with keeping ratchet, also is connected with to make ratchet break away from the function unit of tooth bar on spring.

On flat surface, be provided with fixed support plate and sliding bearing plate.

Described mutual cooresponding telescope support be by structure identical and in twos one group of symmetrically arranged four telescope support constitute, to guarantee flexible framework stability.

The oil pump of described hydraulic drive mechanism is preferably hand oil pump, also can be electric oil pump.

The utility model compared with prior art has following characteristics: the gig that can stretch is used for motor repair trade, and when not needing to promote operation, platform can be reduced to ground and is in same plane, thereby does not need occupied ground and working space again.Adopt hydraulic actuated, can realize that manual control promotes, and also can use under the situation of passive delivery.Have self-locking mechanism, safe and reliable, simple to operate, lifting is steady.

Fig. 1 is a structural representation of the present utility model;

Fig. 2 looks scheme drawing for the left side of Fig. 1;

Fig. 3 is the schematic top plan view of Fig. 1;

Fig. 4 is the scheme circuit of the utility model hydraulic drive mechanism.

Be described in further detail below in conjunction with accompanying drawing:

As Fig. 1, Fig. 2, shown in Figure 3, present embodiment is the gig that provides for motor repair trade, so it is by two identical and symmetrically arranged flexible framework (1) formations of structure, and the base of two frameworks (2) is connected as a single entity.Each flexible framework all is to be connected and composed by platform (3), base (2) and two groups of identical mutual balances of (2 every group) structure and symmetrically arranged telescope support (4).Each telescope support all is to constitute lower link (6) that the boxed rod (5) of scissors structure and two mutual cross connections constitute the scissors structures formation that is hinged by two mutual cross connections.Mutually corresponding and eight fulcrums that be positioned at the upper and lower connecting rod on Fig. 1 right side are hinged with platform and base respectively, mutually corresponding and eight fulcrums that be positioned at the upper and lower connecting rod in Fig. 1 left side are connected on upper and lower sheave shaft (7), (8), upper and lower sheave shaft respectively be arranged on platform and be connected with pulley (10) in the base both sides slideways (9).When imposing external force, telescope support do to be gone up or scissors displacement action down, thereby the drive platform is made upper and lower vertical shifting.Platform is provided with two back plates, and one of them is fixed support plate (11), and another is sliding bearing plate (12).This back plate is corresponding setting with the supporting-point of automobile itself, because the vehicle difference, so the position difference of automobile supporting-point, by regulating the sliding bearing plate, can satisfy the needs of different automobile types.

Driver train is a hydraulic drive mechanism, and it is made of fuel tank (13), check valve (14), hand oil pump (15), two triangle vavles (16), hydraulic actuating cylinder (17), overflow control cock (18).See Fig. 4, hydraulic actuating cylinder is arranged in the flexible framework, and its bottom links to each other with base, and the upper piston axle (20) of hydraulic cylinder piston rod (19) is connected with two of the telescope support that is positioned at its both sides relative boxed rods.Self-locking mechanism by tooth bar (21) and detent (22) constitute is provided with two toothed rack that its top is connected with the axis of the piston respectively in the both sides of hydraulic cylinder piston rod, and perforate relative with tooth bar on hydraulic actuating cylinder seat (24) tooth cover that promptly leads in tooth bar bottom stretches out.The addendum face of tooth bar is the inclined-plane, and the bottom surface is the plane.Two detents of corresponding setting with tooth bar, it is on the ratchet holder that its middle part is connected hydraulic actuating cylinder seat (24) by an axle (23) with two ratchets, and make ratchet one end insert the between cog of tooth bar, the other end of ratchet is connected with the lower end of the spring (25) that keeps ratchet and tooth bar to contact all the time, and the upper end of spring is connected on the hydraulic actuating cylinder seat.Also be connected with the tricing line of manual releasing self-locking in the lower end of spring.The pulling tricing line can make spring stretch, and ratchet will sway, and between its end separating tooth, self-locking mechanism is opened.Unclamp tricing line, spring reset drives ratchet and makes its end insert the between cog of tooth bar.For the pressure oil that can make the releasing self-locking and release in the hydraulic actuating cylinder carries out simultaneously, setting operation pull bar (26) on the overflow control cock, tricing line is connected on the pull bar, stirs pull bar, and the overflow control cock is opened, and ratchet breaks away from tooth bar simultaneously, and platform falls after rise.

Claims

1, a kind of gig, it comprises support, driver train, it is characterized in that between platform and base, being connected with the mutual corresponding telescope support that is provided with, wherein mutually corresponding and be positioned at a side on, lower fulcrum is connected with base with platform respectively, mutually corresponding and be positioned at opposite side on, lower fulcrum is connected to, on the downslide wheel shaft, on, the downslide wheel shaft then be arranged on platform and be connected with pulley in the slideway of base both sides, constitute thus can vertical lift flexible framework, the hydraulic actuating cylinder of hydraulic drive mechanism is arranged in the flexible framework, the bottom of hydraulic actuating cylinder is connected on the base, and hydraulic cylinder piston rod is connected with the telescope support that is positioned at its both sides through the axis of the piston on top.

2, gig according to claim 1, it is characterized in that also including self-locking mechanism, it is made of tooth bar and detent, one end of the tooth bar that be arranged in parallel with piston rod is connected on the hydraulic cylinder piston axle, the guiding tooth cover of the other end through being arranged on the hydraulic cylinder stretches out, the detent axle is connected on the ratchet holder that is positioned on the hydraulic cylinder, the one end inserts the between cog of tooth bar, the other end is connected with the spring that tooth bar contacts all the time with keeping ratchet, also is connected with to make ratchet break away from the function unit of tooth bar on spring.

3, gig according to claim 1 is characterized in that being provided with fixed support plate and sliding bearing plate on flat surface.

4, gig according to claim 1, it is characterized in that described mutual cooresponding telescope support be by structure identical and in twos one group of symmetrically arranged four telescope support constitute.