CN2154253Y

CN2154253Y - Hydraulic two-way hoisting jack

Info

Publication number: CN2154253Y
Application number: CN 93205448
Authority: CN
Inventors: 王长贵
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-03-12
Filing date: 1993-03-12
Publication date: 1994-01-26
Anticipated expiration: 2003-03-12

Abstract

The utility model provides an improved hydraulic two-way hoisting jack, and the utility model is composed of a vertical hoisting jack, a horizontal hoisting jack, a base (comprising oil passages), an oil pump, rolling wheels and a seat frame. The horizontal hoisting jack is adopted as an actuating mechanism for lateral movement, and an angle of 90 DEG is formed by the horizontal hoisting jack and the vertical hoisting jack which are arranged on the base. The utility model has functions of vertical lift and horizontal movement, and the utility model can laterally move a motorcar or laterally load objects. Compared with a structure which adopts a worm wheel, a worm and a rack bar to realize the lateral movement, the utility model has the advantages that the utility model is simple, portable and economical, and the utility model can be used as the machine-repair tool or the driver's tool of the motorcar.

Description

Hydraulic two-way hoisting jack

The utility model relates to a kind of hydro-mechanical unit, be by vertical jack, level jack, the hydraulic bidirectional jack that base (comprising oil circuit), oil pump, roller, mounting are formed, integrate vertical lift and parallel motion, can side travel automobile or loading, it is suitable for automobile driver's tool or engine tools.

The hydraulic jack of Chu Shouing mainly is made up of jacking block, shell, petrol storage tank, sleeve cylinder grease chamber, oil pump, base etc. in the market.As driver's tool, usefulness such as its elevating function can only be replaced tire, repaired, inflation.If vehicle casts anchor, hydraulic jack just can not move to the roadside with automobile, often blocks the traffic.

Task of the present utility model provides a kind of improved, hydraulic jack with two-way function of vertical lift and parallel motion, vehicle cast anchor and other situations under, the driver can install with this, press the moving direction alternately front axle and the rear axle of moving vehicle, can promptly automotive safety be moved to the roadside.

For solving above-mentioned task, scheme of the present utility model is: on the base of ordinary jack, install a level jack additional.It with the base that coexists on vertical jack at an angle of 90, as the actuating unit of side travel.Make it can vertical lift, again can side travel.After vertical jack held up loading, level jack was just stretched out tappet, withstood on the end plate of mounting, drove roller thereby promote base, rolled in mounting along incorgruous groove, to realize the purpose of side travel loading.Known from institute, jack can not horizontal use.For solving this difficult problem, the utility model adopts the not petrol storage tank of usage level jack, and with the way of the shared petrol storage tank of vertical jack.

Oil piping system has embodied the characteristics of same oil pump, a petrol storage tank, an oil transportation road and two oil return lines altogether.

Such scheme also can adopt worm gear, worm screw, tooth bar to realize the side travel function.But adopt the level jack mode to solve then fairly simple, light and economical.Such scheme adopts roller type to realize side travel, can certainly adopt the pin of dovetail groove type to roll or slide and finish.

Consider the hydraulic bidirectional jack, when relative position is operated, the moving direction unanimity, thus respectively open a handle socket at the two ends of swing arm, so that operation.

Hydraulic bidirectional jack of the present utility model integrates vertical lift and parallel motion, can again can the side travel loading with loading jack-up, and have simple in structure, be easy to make, easy to use, carry advantages such as also convenient, be particularly suitable for doing automobile driver's tool or engine tools.

Below in conjunction with drawings and Examples the utility model is described in further detail:

Fig. 1 a is that figure is seen in the hydraulic principle signal of the utility model hydraulic bidirectional jack;

Fig. 1 b is a site plan of the rotary valve among Fig. 1 a;

Fig. 1 c is the another location figure of the rotary valve among Fig. 1 a;

Fig. 2 a is the structure front elevation of hydraulic bidirectional jack.

Fig. 2 b is that the A of Fig. 2 a is to partial view;

Fig. 3 is the birds-eye view of hydraulic bidirectional jack among Fig. 2;

Fig. 4 is another connection structure scheme drawing of hydraulic bidirectional jack base and mounting.

In hydraulic bidirectional jack principle schematic shown in Figure 1, oil piping system is by oil pump (15), rotary valve (9), check valve (6), (10), (11), oil return switch (7), (8), sleeve cylinder grease chamber (4), (5) and petrol storage tank (17) are formed.The lateral arrangement of level jack (1) has embodied three characteristics of oil piping system: (an one) shared petrol storage tank (17), an oil pump and an oil transportation road.Oil footpath rotary valve (9) and the check valve (10) that pumps enters the sleeve cylinder grease chamber (4) of vertical jack (2); The oil that pumps enters the sleeve cylinder grease chamber (5) of level jack (1) through rotary valve (9) and check valve (6); (2) two long oil return lines: one is that petrol storage tank (17) is got back to through oil return switch (7) by sleeve cylinder grease chamber (5); Article one, be that petrol storage tank (17) is got back to through oil return switch (8) by sleeve cylinder grease chamber (4).The scheme of the petrol storage tank (17) of shared vertical jack (2) just can solve the horizontal problem of level jack (1), just can realize lifting and side travel function smoothly; (3) whole oil circuits and valve are all concentrated and are located in the base (12).And for example shown in Figure 2, the hydraulic bidirectional jack is made up of vertical jack (2), level jack (1), oil pump (15), base (12), roller (13) and mounting (14).Utilize level jack (1) at an angle of 90, to realize lifting and locomotive function as the vertical jack (2) on the actuating unit of side travel and the base (12) that coexists.From the figure as can be seen: after vertical jack (2) holds up loading, the tappet (19) of level jack (1) just stretches out on the end plate (20) that withstands on mounting (14), promote base (12) drive roller (13) and in mounting (14), roll, thus the purpose of realization side travel loading.Can also see on scheming: the petrol storage tank of level jack (1) does not have oil circuit, does not have oil, but has kept Oiltank structure, to strengthen the rigidity of level jack.The petrol storage tank (17) of shared vertical jack (2) is in order that solve the horizontal problem of level jack (1).Adopt level jack (1) to realize side travel, than employings worm gear, worm screw, tooth bar realization side travel simple, light and economical.

Consider that from Fig. 2 b moving between base (12) and the mounting (14) also can adopt the pin of dovetail groove type to roll or the slip (see figure 4), but this programme adopts wheeled rolling.

See to view from the A of Fig. 2 b: for the handled easily person when relative position is operated, the moving direction unanimity, for this reason, socket (23), (25) that a handle (16) is respectively opened at the two ends of the swing arm (24) on oil pump (15) and pole (22) are limited by the orientation when avoiding operating.

Below with reference to Fig. 1, Fig. 2, the process of will manipulating is described one time comprehensively: before the operation, vertical jack (2) and level jack (1) are in out-of-run contraction state.Base (12) and roller (13) are positioned at termination, Fig. 2 a right side.Dragging mounting (14) makes the jacking block (18) of vertical jack (2) aim at the loading center of gravity that need move.Whole operation is carried out in two steps:

The first step, " rising earlier ".Stir rotary valve (9), open the oil circuit that leads to vertical jack (2), the oil circuit that will lead to level jack (1) is simultaneously closed.Shaking handle (16) drive oil pump (15) extracts the oil in the petrol storage tank (17) out, enter oil pump (15) through check valve (11), pumping oil is the position of Fig. 1 b through rotary valve (9), enters the sleeve cylinder grease chamber (4) of vertical jack (2) through check valve (10).This moment, oil pressure was pressed to the top with piston guide rod (3), and the jacking block (18) that drive and piston guide rod (3) activity are spirally connected is with loading jack-up.

In second step, " move the back " stirs rotary valve (9), changes the oil circuit that leads to level jack (1), and the oil circuit that will lead to vertical jack (2) is simultaneously closed.Continue to shake handle (16) and drive pump oil (15), pumping oil is the position of Fig. 1 c through rotary valve (9), enters the sleeve cylinder grease chamber (5) of level jack (1) through check valve (6).Press oil that tappet (19) level is stretched out this moment, withstands on the end plate (20) of mounting (14), in mounting (14), roll along guide groove (21) thereby promote base (12) drive roller (13), thus the side travel of realization automobile or loading.

Not in place as once moving, can continue to move.But before beginning next time, need unclamp the oil return switch (8) of vertical jack (2) and the oil return switch (7) of level jack (1), allow the oil of sleeve cylinder grease chamber (4), (5) all get back in the petrol storage tank (17) of vertical jack (2), make two jacks be in the punctured position of not working, note shutting oil return switch (7) and (8).Again press the said procedure operation then, till loading puts in place.

Claims

1, a kind of hydraulic bidirectional jack, it comprises vertical jack, base, oil pump, it is characterized in that it also comprises a level jack, and it is arranged between the end plate of base and mounting, and base is placed on the mounting slidably.

2, two-way jack according to claim 1 is characterized in that level jack one end is fixed on the base, and the other end withstands on the end plate of mounting.

3, two-way jack according to claim 1 and 2 is characterized in that the oil piping system of vertical jack and level jack is total to same oil pump, a petrol storage tank, an oil transportation road and two oil return lines that enter petrol storage tank from the sleeve cylinder grease chamber through the oil return switch.

4, two-way jack according to claim 3 is characterized in that the mainly concentrated inside that is located at base of oil circuit.

5, two-way jack according to claim 3, it is characterized in that the oil transportation road is provided with a rotary valve, so that control oil enters the sleeve cylinder grease chamber of vertical jack or the sleeve cylinder grease chamber of level jack, on two oil return lines, respectively establish an oil return switch, enter at oil on the oil transportation road before the sleeve cylinder grease chamber of the sleeve cylinder grease chamber of vertical jack and level jack and respectively establish a check valve.

6, two-way jack according to claim 1 is characterized in that respectively establishing a handle socket at the two ends of oil pump swing arm, so that operation.

7, two-way jack according to claim 1 and 2, four rolling is equipped with in the bottom that it is characterized in that base, the tappet that stretches out by level jack withstands on the end plate of mounting, promotes base drive roller and rolls in mounting along guide groove, to realize the purpose of side travel.

8, two-way jack according to claim 1 and 2 is characterized in that base and mounting adopt the bearing fit of dovetail groove type.