CN201261704Y

CN201261704Y - Lifting jack

Info

Publication number: CN201261704Y
Application number: CNU2008201639686U
Authority: CN
Inventors: 周爱兴
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-09-05
Filing date: 2008-09-05
Publication date: 2009-06-24
Anticipated expiration: 2018-09-05

Abstract

The utility model discloses a lifting device, which has the advantages of simple structure, safe and convenient use, low manufacture cost and high universality. The lifting device comprises a bottom frame, rollers arranged on the bottom of the bottom frame, and a tilting handle arranged on the bottom frame for pulling the device. The lifting device is characterized in that a parallel-crank mechanism lifting frame is arranged on the bottom frame; four upper hinging points of the lifting frame is connected with a work stage; both sides of the lifting frame are respectively connected with both ends of a frame with a shape in Chinese character 'men'; and a crossbeam on the frame in Chinese character 'men' is connected with a piston rod of a hydraulic jack. A pawl can be connected with the side surface of the lifting frame, and a plurality of support location ribs matched with the pawl are arranged on the bottom frame. A lifting fixing device is arranged on the upper surface of the work stage. The heavy object on the work stage can be lifted easily by operating the hydraulic jack, and the work stage can be locked in a proper position by the pawl. Matched with the lifting fixing device, the lifting device can be used for lifting or ejecting various kinds of objects to achieve more convenient, reliable and safe operation.

Description

Lift jack

Technical field

The utility model relates to the equipment of mechanical jack-up, particularly a kind of lift jack.

Background technology

In factory, repairing the shop often need be with the weight jack-up or the lifting of multiple shape, but normally with sledge thick stick sledge or manually lift, poor stability like this, working strength greatly also causes the damage of object easily.

The utility model content

The purpose of this utility model provide a kind of simple in structure, safe and convenient to use, manufacturing cost is lower, the lift jack of highly versatile.

In order to address the above problem, the utility model is achieved through the following technical solutions: the bottom that comprises underframe, underframe is equipped with roller, be connected with the handrail that upwarps for promoting on the underframe, it is characterized in that being equipped with on the underframe lifting frame of parallel-crank mechanism, four upper hinge points of lifting frame link to each other with bench board, the both sides of lifting frame link to each other with the two ends of door cabinet frame respectively, and the crossbeam on the door cabinet frame is connected with the piston rod of hydraulic jack.

Can also be connected with ratchet in the side of lifting frame, be shaped on many support positioning bars that match with ratchet on the underframe.Upper surface at described bench board is equipped with the lifting anchor fitting.

The beneficial effect of this utility model is, by operating hydraulically operated jack, makes the light lifting of weight on the bench board, and by ratchet with table lock surely in place.If be used with the lifting anchor fitting, can be fit to lifting or jack-up to multiple object, make more convenient, the reliable and safety of work.

Description of drawings

Fig. 1 is the front view of lift jack;

Fig. 2 is the birds-eye view of lift jack;

Fig. 3 is the component assembly block diagram of lift jack;

Fig. 4 is the block diagram of lift jack;

Fig. 5 is the front view of V-arrangement carriage;

Fig. 6 is the block diagram of V-arrangement carriage;

Fig. 7 is the block diagram that the V-arrangement carriage is installed on the lift jack;

Fig. 8 is the front view of bed hedgehopping carriage;

Fig. 9 is the block diagram of bed hedgehopping carriage;

Figure 10 is the block diagram that the bed hedgehopping carriage is installed on the lift jack;

Figure 11 is the enlarged front view of taking over a business;

Figure 12 is the amplification stereogram of taking over a business;

Figure 13 is the block diagram that is equipped with on the lift jack;

Figure 14 is the front view of double end carriage;

Figure 15 is the block diagram of double end carriage;

Figure 16 is the block diagram that the double end carriage is installed on the lift jack;

Figure 17 is dull and stereotyped birds-eye view;

Figure 18 is dull and stereotyped block diagram;

Figure 19 is equipped with dull and stereotyped block diagram on the lift jack.

Wherein: 1, underframe; 2, roller; 3, handrail; 4, lifting frame; 5, bench board; 6, limit connecting bore; 7, middle connecting bore; 8, door cabinet frame; 9, crossbeam; 10, hydraulic jack; 11, ratchet; 12, support positioning bar; 13, handle; 14, pump beam hanger; 15, pump oil foot pedal; 16, oil return bar; 17, oil return stretcher; 18,, V-arrangement carriage; 19, base plate; 20, block; 21, bearing pin; 22, bed hedgehopping carriage; 23, bed hedgehopping piece; 24, take over a business; 25, disk; 26, double end carriage; 27, rectangular tube; 28, expansion link; 29, screw thread; 30, pallet; 31, flat board; 32, rectangular plate; 33, limit.

The specific embodiment

The utility model will be further described below in conjunction with the drawings and specific embodiments.

Fig. 1 to Fig. 4 is the structural representation of lift jack.It comprises that the bottom of underframe 1, underframe 1 is equipped with four rolling 2, be connected with the handrail 3 that upwarps for promoting on the underframe 1, the lifting frame 4 of parallel-crank mechanism is installed on the underframe 1, four upper hinge points of lifting frame 4 link to each other with bench board 5, bench board 5 be H shape as shown in Figure 2, also can be

Shape.Be shaped on four limit connecting bores 6 on four angles on bench board 5 surfaces, the front and rear gaps of limit connecting bore 6 is apart from identical with left and right sides pitch-row, and promptly quadrate also is shaped on middle connecting bore 7 on the crossbeam on bench board 5 surfaces.The both sides of lifting frame 4 link to each other with the two ends of door cabinet frame 8 respectively, crossbeam 9 on the door cabinet frame 8 is connected with the piston rod of hydraulic jack 10, be connected with ratchet 11 in the side of lifting frame 4, be shaped on many support positioning bars 12 that match with ratchet 11 on the underframe 1, when lifting frame 4 gives rise to a certain height and position need stay the time, available pawl 11 is withstood and is supported positioning bar 12 and the enforcement location, and the action of ratchet 11 is by 13 controls of coupled handle.Be connected with oil return stretcher 17 being connected with on pump oil foot pedal 15 and the oil return bar 16 on the pump beam hanger 14 of hydraulic jack 10, the pump oil of jack 10 and drain the oil and come afterburning and control with pin, not only easily but also safety.

Can multiple lifting anchor fitting be installed respectively at the upper surface of bench board 5 according to different job requirements.It includes:

1, V-arrangement carriage 18 is as Fig. 5, shown in Figure 6.Described V-arrangement carriage 18 is the base plate 19 of a bar shaped, and two of base plate 19 upper surfaces is shaped on the high block 20 that rises, and the centre is in the shape of the letter V, and is shaped on two bearing pins 21 on the bottom surface of base plate 19, and during use, bearing pin 21 is plugged in the limit connecting bore 6.V-arrangement carriage 18 can two uses in pairs, can about on the bench board 5, place as shown in Figure 7, also can before and after place.Be fit to the lifting of cylindrical shaped body, as oil drum etc.

2, bed hedgehopping carriage 22 is as Fig. 8, shown in Figure 9.Described bed hedgehopping carriage 22 is the bed hedgehopping piece 23 of a bar shaped, is shaped on two bearing pins 21 on the bottom surface of bed hedgehopping piece 23, and during use, bearing pin 21 is plugged in the connecting bore of limit 6.Bed hedgehopping carriage 22 can two uses in pairs, can about on the bench board 5, place as shown in figure 10, also can before and after place.Be used for adjusting to face height

3, take over a business 24 as Figure 11, shown in Figure 12.Described to take over a business 24 be a disk 25, and the breach that is shaped on suitable for reading of disk 25 is shaped on a bearing pin 21 on the bottom surface, during use, in the middle of bearing pin 21 is plugged in the connecting bore 7 as shown in figure 13.Can be used for picking-up to axle etc.

4, double end carriage 26 is as Figure 14, shown in Figure 15.Described double end carriage 26 is: a rectangular tube 27, the two ends of rectangular tube 27 are plugged with expansion link 28 respectively, each head that connects expansion link 28 is connected with the pallet 30 vertical with connecing expansion link 28 length directions by screw thread 29, and the height of pallet 30 is regulated by screw thread 29.On the bottom surface at rectangular tube 27 middle parts, be shaped on a bearing pin 21, during use, in the middle of bearing pin 21 is plugged in the connecting bore 7 as shown in figure 16, according to the position of the rotatable rectangular tube 27 of operating needs and spacing and the height of regulating two pallets 30.Can be used for picking-up to strip shape spare etc.

5, dull and stereotyped 31 as Figure 17, shown in Figure 180.Described dull and stereotyped 31 is a rectangular plate 32, is shaped on down the limit 33 of turning over around the rectangular plate 32.Flat board 31 covers at the upper surface of bench board 5 shown in Figure 19 during use.Can be used for having the picking-up of big planar object, also can be used as work top and use.

Except above-mentioned five kinds of lifting anchor fittings, do not get rid of the lifting anchor fitting that uses other kinds that the lifting fixation is arranged yet.

Claims

1, lift jack, the bottom that comprises underframe, underframe is equipped with roller, be connected with the handrail that upwarps for promoting on the underframe, it is characterized in that being equipped with on the underframe lifting frame of parallel-crank mechanism, four upper hinge points of lifting frame link to each other with bench board, the both sides of lifting frame link to each other with the two ends of door cabinet frame respectively, and the crossbeam on the door cabinet frame is connected with the piston rod of hydraulic jack.

2, lift jack according to claim 1 is characterized in that at the upper surface of described bench board the lifting anchor fitting being installed.

3, lift jack according to claim 2 is characterized in that described lifting anchor fitting is the V-arrangement carriage, and described V-arrangement carriage is the base plate of a bar shaped, and two of plate upper surface is shaped on the high block that rises, and the centre is in the shape of the letter V.

4, lift jack according to claim 2 is characterized in that described lifting anchor fitting is the bed hedgehopping carriage, the bed hedgehopping piece that described bed hedgehopping carriage is a bar shaped.

5, lift jack according to claim 2, it is characterized in that described lifting anchor fitting is the double end carriage, described double end carriage is: a rectangular tube, the two ends of the rectangular tube expansion link of pegging graft respectively, each connects the head of expansion link by the pallet vertical with connecing the length of telescopic bar direction that be threaded, and the height of pallet passes through threaded adjusting.

6, lift jack according to claim 2 is characterized in that described lifting anchor fitting for taking over a business, and described to take over a business be a disk.

7, according to any one lift jack of claim 2 to 6, it is characterized in that being shaped on connecting bore at the upper surface of described bench board, be shaped on bearing pin on the bottom surface of lifting anchor fitting, bearing pin is plugged in the connecting bore.

8, lift jack according to claim 2 is characterized in that described lifting anchor fitting is a flat board, and described flat board is a rectangular plate, is shaped on down the limit of turning over around the rectangular plate.

9, lift jack according to claim 1 is characterized in that being connected with ratchet in the side of described lifting frame, is shaped on many support positioning bars that match with ratchet on the underframe.

10, lift jack according to claim 1 is characterized in that being connected with stretcher on the pump beam hanger of described hydraulic jack.