CN2474512Y

CN2474512Y - Horizontal hydraulic jack of vertical lift

Info

Publication number: CN2474512Y
Application number: CN 01204979
Authority: CN
Inventors: 隋文臣
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-02-06
Filing date: 2001-02-06
Publication date: 2002-01-30
Anticipated expiration: 2011-02-06

Abstract

The utility model provides a vertically-displaceable horizontal hydraulic jack. The utility model is characterized in that a hydraulic control system I is connected with a fast hydraulic jar II through conduit lines, and a piston rod of the fast hydraulic jar II is hinged with a link mechanism III on A point. When the link mechanism III satisfies certain dimension requirement, a point A moves in the horizontal direction, a point B rotates on a point D, and the bearing point C of the link mechanism III moves in the vertical direction (no motion in horizontal direction). The utility model has quick contact with objects lifted, stable elevation and subsidence, great supporting capacity, highly effective operation, fine bearing state, reliable security, and strong stability quality, which has operating forces in inverse proportion of the elevation and subsidence height, and has the lowest altitude in structure, thereby being suitable for operations in dwarf air environment.

Description

The horizontal hydraulic jack of vertical lift

This practicality newly belongs to the Hydraulic for lifting load equipment of the weight that hoists.

The hydraulic jack that uses both at home and abroad has vertical and horizontal two kinds at present, though be widely used, many imperfection parts is arranged still.One, vertical jack: owing to be subjected to the restriction of stroke, minimum constructive height is difficult to reduce, and is relatively more difficult when use in short and small place in the space; Two, horizontal jack: 1, the jack weight that oil cylinder is in rotary state in the course of the work, the power of being born is far longer than jack institute jack-up object, supporting efficiency is low, operating mode is poor, the operation effort; 2, jack is in lifting process, and the strong point has bigger displacement in the horizontal direction, so poor stability.

The purpose of this utility model is the horizontal hydraulic jack that a kind of vertical lift will be provided, and the contact point of its rising arm and weight (strong point) is only made vertical displacement movement, the horizontal direction non-displacement; Can contact fast by the object that hoists, weight then reposefully slowly hoists.

The purpose of this utility model is achieved in that the fast hydraulic pressure cylinder II that hydraulic control system I installs by pipeline and level is connected, the piston rod end of fast hydraulic pressure cylinder II by slide block and connecting rod mechanism III at A point articulated (as Fig. 1), A point and D point are on same horizon, when the piston rod of the fast hydraulic pressure cylinder II A point by the slide block drivening rod III of mechanism moves in the horizontal direction, then putting B rotates around attachment point D, if connecting rod mechanism satisfies: AB=BC=BD, then the strong point C of connecting rod mechanism III makes vertical displacement movement.

Owing to adopted above-mentioned design plan, its advantage is: bearing force is big, high efficiency, strained condition is good, safe and reliable, stability is strong, operating effort and adjustable height are inversely proportional to, and minimum constructive height is low, is useful for short and small space environment.

Concrete structure of the present utility model is illustrated by the following drawings and embodiment:

Accompanying drawing 1 is the schematic diagram of the horizontal hydraulic jack of the utility model vertical lift.

Piston and piston rod 2 can crank motions in cylinder body 1, a small piston rod 3 and energy relative motion are arranged in the inner chamber R of piston and piston rod 2, one end of small piston rod 3 is fixed on the cylinder body 1, the end of piston and piston rod 2 is point articulated at A by slide block 4 and rising arm 6, one end of connecting rod 7 is hinged at the mid point B place of rising arm 6, the attachment point D place of an end on body is hinged, 2 of A, D are on same horizon, and jacking dish 8 is hinged on the strong point C place of rising arm 6; The outlet of draining valve 10 by pipeline link to each other with the inner chamber R of piston and piston rod 2, inlet links to each other with the suction hydraulic fluid port of oil pump 12; The outlet of oil sucting valve 18 links to each other with the suction hydraulic fluid port of oil pump 12, inlet communicates with fuel tank; Safety valve 11 is connected on the inlet of draining valve 10, and unloader valve 16 is connected on the outlet of draining valve 10, and the inlet of sequence valve 15 links to each other with the outlet of draining valve 10, outlet communicates with the G chamber of fast hydraulic pressure cylinder; The outlet of inhaling valve 14 fully communicates with the G chamber of fast hydraulic pressure cylinder, inlet communicates with fuel tank; Shuttle valve 9 is connected between the outlet and fuel tank 17 of sequence valve 15, and handgrip 13 is hinged with the plunger of oil pump 12.

When one, hoisting weight:

Handgrip 13 moves back and forth up and down, and oil pump 12 is constantly by oil sucting valve 18 oil suctions, through draining valve 10 oil extractions.Before the jacking dish 8 of jack contacts the weight that hoisted, the pressure of system is lower, sequence valve 15 cuts out, the liquid that oil pump 12 is discharged is on the endoporus of draining valve 10, a hole, small piston rod 3 acts on R chamber in piston and the piston rod 2, making piston rod 2 promote slide block 4 moves right fast, connecting rod 7 clockwise rotates around fixing anchor point D, and jacking dish 8 rises fast.At this moment, the G chamber of fast hydraulic pressure cylinder is through inhaling valve 14, b hole oil suction liquid make-up, S chamber fully through the oil extraction of c hole.

When the jacking dish 8 of jack touches when being hoisted weight, the pressure of system raises rapidly, sequence valve 15 is opened, pressure fluid enters R chamber in piston and the piston rod 2 through the endoporus of draining valve 10, a hole, small piston rod 3, and simultaneously, pressure fluid enters the G chamber of fast hydraulic pressure cylinder through draining valve 10, sequence valve 15, b hole, making piston and piston rod 2 promote slide block 4 slowly moves right, connecting rod 7 clockwise rotates around fixing anchor point D, and jacking dish 8 slowly rises, and weight rises.

When two, transferring weight:

Open unloader valve 16, the N chamber in piston and the piston rod 2 through a hole, unloader valve 16 communicates with fuel tank 17; Cause the controlling liquid of shuttle valve 9 right-hand members to be forced down in left end, spool moves to right and is in left valve position, at this moment, fast the G chamber of oil cylinder through the b hole, shuttle valve 9 communicates with fuel tank 17, under the effect of weight, connecting rod 7 rotates counterclockwise around fixing anchor point D, and slide block 4 drives piston and piston rod 2 is moved to the left, and jacking dish 8 descends.

After jacking dish 8 dropped to the disengaging weight, by the effect of retracing spring (slightly picture), jacking dish 8 continued to descend, till minimum constructive height.

Claims

1, a kind of horizontal hydraulic jack of vertical lift, it is characterized in that, the piston of the fast hydraulic pressure cylinder II that level is installed and the end of piston rod (2) are point articulated at A by slide block (4) and rising arm (6), one end of connecting rod (7) is hinged at the mid point B place of rising arm (6), the attachment point D place of the other end on body is hinged, 2 of A, D are on same horizon, piston and piston rod (2) drive slide block (4) and move in the horizontal direction, the B point rotates around the D point, when AB=BC=BD, the strong point C of rising arm 6 is vertical lifts.