CN2383832Y

CN2383832Y - Direct driving electric jack

Info

Publication number: CN2383832Y
Application number: CN 99241854
Authority: CN
Inventors: 黄承梯
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-08-16
Filing date: 1999-08-16
Publication date: 2000-06-21
Anticipated expiration: 2009-08-16

Abstract

The utility model relates to a direct driving electric jack which comprises a jack with a drive bolt, a motor provided with a reduction gear, a bearing sheathed on the drive bolt and a power switch operated by a manipulator. The utility model is characterized in that an apparatus for releasing torque force is positioned between the motor and a pivot of the jack, and the motor and a power output shaft of the jack are positioned on the same central line. The utility model can lift an automobile or weight stably, safely and rapidly, and especially can be used and operated by a lady. As a mandatory tool for repairing various automobiles, the utility model can be carried with the automobile.

Description

The electronic jack of through-coupling formula

The utility model relates to a kind of electronic jack.

At present, compact car such as caravan etc., the jack that is equipped with mostly are M/C, and the mode of operation makes the act arm of two ends, left and right sides pivot combination produce lift action nothing more than driving jack center drive screw with hand moving bow type rocking handle again.In use, if because of the improper Chang Yi of the application of force causes jack crooked or topple over, and effort very, it is painstaking to feel more for general Ms.In addition, practising the formula jack increases volume on the contrary or increases counterweight for increasing degree of stability, and uses that motor is big, the heavier motor of weight, and by contrast, this jack will be removed at the bottom of the car or the outer use of car all can cause the very heavy burden of ladies.

Though also there is the precursor to design electronic jack now, but must be provided with the device of some elimination torsion between jack and the motor, must establish on motor erecting frame, the motor drop-gear box as jack one end and must establish fixed-wing, must cooperate bilateral nut to be connected and fixed with some rectangular screw rods between erecting frame and the fixed-wing, and drop-gear box also must be provided with, and the torsion driving head is next to be connected with drive screw, because complex structure, cost height, again can't the too big weight of lifting load, so can't large-scale popularization implement so far.

The purpose of this utility model provides a kind of simple in structure, and is in light weight, easy to operate, can allay the electronic jack of through-coupling formula of torsion.

For achieving the above object, the utility model is taked following design: the electronic jack of a kind of through-coupling formula, it comprises that jack, the electro-motor, that is equipped with reducing gearbox with drive screw is sheathed on bearing, the source switch by operator's operation on the drive screw, it is characterized in that: be provided with a torsion and allay device between the pivot of described electro-motor and described jack, the power take-off shaft of described electro-motor and described jack is positioned on the same line of centers.

Described torsion allays locating plate and at least two toggles compositions that device comprises a fixing described electro-motor, between described electro-motor and described locating plate to count bolt.

Described toggle generally is the L type, and an end is a horizontal ends, and end is vertical end in addition, and described horizontal ends is fixed on the described pivot, and described vertical end is fixed on the described locating plate.

Described toggle generally is the L type, and an end is for omiting the beveled end of the little leaning angle of tool, and end is vertical end in addition, and described beveled end is fixed on the described pivot, and described vertical end is fixed on the locating plate.

The leaning angle of described toggle beveled end must be below 30 °.

One end of described drive screw wears bearing, so that the drive screw rotation is more smooth and easy.

Described torsion allays device and comprises the tubular Torque tube that is fixed on described jack pivot side and the pipe box that is fixed on described electro-motor front end, described Torque tube and described pipe box socket, and fix by stove bolt.

One end of described drive screw has a bearing carrier ring, can insert bearing in it so that drive screw is more smooth and easy when rotating.

Described electro-motor is made up of miniature motor and reducing gearbox, and miniature motor is located at reducing gear chamber interior wall upper end, and is inverted L shape and takes up room with minimizing.

The utility model can make the power take-off shaft position of electro-motor and jack on concentricity line, and sees through torsion allay frame torsion is allayed when through-coupling, and avoids jack to produce strain or topple over.The set bearing generation of coefficient that can reduce friction between drive screw and pivot.The user only need handle source switch control positive and negative rotation of motor in addition, and can allow jack stable elevation weight easily with 12～15 volts car direct current.Advantage of the present utility model can be summarized as follows: 1, can stablize, safety, rapidly vehicle or weight are lifted.2, simple structure, in light weight, sturdy and durable can allow single use of Ms and operation.3, simple to operate, operator only needs the forward and reverse of change-over switch, can control the jack lifting.4, after torsion allays, can prevent that jack from producing strain or crookedly topple over.5, energy stock production, and can reduce processing procedure and manufacturing cost, it can be used as the indispensable instrument of repairing of various vehicles and carries with car.

Below in conjunction with accompanying drawing the utility model is described in detail.

Fig. 1 is the utility model embodiment one three-dimensional exploded view

Fig. 2 is the utility model embodiment one three-dimensional combination figure

Fig. 3 is that the utility model embodiment one torsion allays the device connection diagram

Fig. 4 is the local enlarged diagram of Fig. 3

Fig. 5 is the utility model toggle horizontal ends angle of inclination scheme drawing

Fig. 6 is Fig. 5 jack propradation scheme drawing

Fig. 7 is the utility model embodiment two three-dimensional exploded views

Fig. 8 is the utility model embodiment two three-dimensional combination figures

Fig. 9 is that the utility model embodiment two torsion allay the device connection diagram

Figure 10 is the local enlarged diagram of Fig. 9

Figure 11 is a scheme drawing of being furnished with the top pad on the utility model jack

Figure 12 is the scheme drawing that the utility model direct current change-over switch control electro-motor is just changeing

Figure 13 is the scheme drawing of the utility model direct current change-over switch control electro-motor counter-rotating

Figure 14 is the scheme drawing of the utility model direct current change-over switch when not controlling electro-motor

Figure 15 is the enforcement illustration of the utility model electricity jack

Embodiment one as shown in Figure 1 and Figure 2, electronic jack 10 of the present utility model, its structure comprises that a jack 20, a torsion allay device 30, an electro-motor 40 and and is located in drive screw 21 in the jack 20.Jack 20 by lift arm 22 on two, lift arm 23 for two times, pivot that arm is lifted in two connections up and down 24, connects the connecting block 25 of lifting arm on two, by axle bolt 251 and fixes the base 26, of lifting arms for two times by axle bolt 261 and be fixed on top pad 27 on the connecting block 25, reach a drive screw 21, that is located in 24 on two pivots and be located in drive screw 21 bearing at end 28 and formed.Can see through pivot 24 and make and lift arm up and down and rise or descend when drive screw 21 forward and backwards, this jack is a habit formula structure, being described in this and promptly not adding to give unnecessary details for structure, function.

Electro-motor 40 is the combination of miniature motor 41 and reducing gearbox 42, and reducing gearbox 42 inside constitute a speed reduction gearing with the pinion gear group, or cooperates formation one speed reduction gearing by worm screw and worm screw wheel.In addition, combine with sleeve 211 between the rotating shaft 43 of electro-motor 40 and the drive screw 21, add bolt 212 (or latch) and give captive joint.

Torsion allays device 30, and fixedly locating plate 31 and two laterally zygomorphic toggles 32 of electro-motor 40 are formed by one, toggle 32 generally is the L type, horizontal ends can be welded with pivot 24, and vertical end is then welded with locating plate 31, is fixed by several bolts 33 between locating plate 31 and the electro-motor 40.Locating plate central authorities have a perforation 311, and the rotating shaft 43 of the moving motor of can powering wears.As shown in Figure 3, Figure 4, when miniature motor 41 drive reducing gearboxs 42 slow down after and drive drive screw 21, at this moment the torsion moment of torsion that produced of electro-motor 40 must allay device 30 by torsion and reduces, because torsion is offset, and significantly improve stability to avoid jack 20 to topple over because of crank causes.In addition, base 26 1 ends extend the bigger lengthening piece 262 of an area, and lengthening piece 262 can be fan-shaped or rectangle, and lengthening piece 262 can prevent jack 20 center shakinesses before electro-motor 40 is not switched on, and can reach and land counterbalance effect.

Aforementioned torsion arm 32 1 ends are horizontal ends, also can be provided with an inclination low-angle, angle about 30 ° with interior (as shown in Figure 5).If angle surpasses more than 30 °, when then lifting

arm

22,23 up and down and rising, can be easy to hit toggle 32 in the end (arrow indication) of lifting the nearly pivot 24 of knee-joint and can't rise, if just can not hit toggle 32 (as shown in Figure 6) and lifting smoothly less than 30 ° of angles.

Embodiment two is as Fig. 7, shown in Figure 8, torsion is allayed device 30 change the solid tubular Torque tube 34 of jack pivot 24 face down bondings into, and be provided with a pipe box 44 before the electro-motor 40, after pipe box 44 and Torque tube 34 sockets, can make both in conjunction with (as Fig. 9, shown in Figure 10) by the fixing of stove bolt 35, one end of drive screw 21 has a bearing carrier ring 213, can insert bearing 28 in it so that drive screw 21 is more smooth and easy when rotating.The end 214 of drive screw can penetrate in the reducing gearbox 42 and combine with inner rotating shaft.Secondly, the miniature motor 41 of electro-motor 40 is arranged on the inboard (the habit formula is located at the outside) of reducing gearbox 42 and is inverted L shape, relies on this kind design can shorten the entire length of jack, and then reduces usage space.

Above-mentioned structure does not need the motor locating plate, and Torque tube 34 can allay torsion and moment of torsion that electro-motor 40 is produced, topples over to prevent jack 20 from producing crank.

As shown in figure 11, in the various embodiments described above, a replaceable top pad 27 can be set on the connecting block 24 of jack 20, top pad 27 can optionally change top with the difformity structure and pad and execute, and for example the top pad is a planar shaped, can be used for bracketing and is supportted object.In addition, the utility model can be provided with the positive and negative change-over switch 60 of direct current (DC) on electro-motor 40, with the rotating action of control motor.

The utility model can adopt direct current change-over switch control electro-motor, and after change-over switch 60 was pressed towards left end, Direct Current Motor 41 produced the state (as shown in figure 12) that is just changeing; Otherwise, press back (as shown in figure 13) towards the right side in change-over switch 60, Direct Current Motor 41 produces the state of counter-rotating; If change switch 60 (as shown in figure 14) not according to crush-cutting, then Direct Current Motor 41 the two poles of the earth obtain negative current and are quiescence.In addition, the direct supply of motor can connect use with automobile storage battery or Cigarette lighter, and change-over switch can be arranged on motor or the power lead.

As shown in figure 15, the electronic jack 10 of the utility model because of in light weight, stable gravity center, processing ease, again can be with DC current bracketing load easily, but and can easily take and the one man operation for ladies, shown in for the heavy load that supports as automobile 50 1 classes, can both easily reach.

Claims

1, the electronic jack of a kind of through-coupling formula, it comprises that jack, the electro-motor, that is equipped with reducing gearbox with drive screw is sheathed on bearing, the source switch by operator's operation on the drive screw, it is characterized in that: be provided with a torsion and allay device between the pivot of described electro-motor and described jack, the power take-off shaft of described electro-motor and described jack is positioned on the same line of centers.

2, the electronic jack of through-coupling formula as claimed in claim 1, it is characterized in that: described torsion allays locating plate and at least two toggles compositions that device comprises a fixing described electro-motor, between described electro-motor and described locating plate to count bolt.

3, the electronic jack of through-coupling formula as claimed in claim 2, it is characterized in that: described toggle generally is the L type, and an end is a horizontal ends, and end is vertical end in addition, and described horizontal ends is fixed on the described pivot, and described vertical end is fixed on the described locating plate.

4, the electronic jack of through-coupling formula as claimed in claim 2, it is characterized in that: described toggle generally is the L type, and an end is for omiting the beveled end of the little leaning angle of tool, and end is vertical end in addition, described beveled end is fixed on the described pivot, and described vertical end is fixed on the locating plate.

5, the electronic jack of through-coupling formula as claimed in claim 4 is characterized in that: the leaning angle of described toggle beveled end must be below 30 °.

6, the electronic jack of through-coupling formula as claimed in claim 2, it is characterized in that: an end of described drive screw wears bearing, so that the drive screw rotation is more smooth and easy.

7, the electronic jack of through-coupling formula as claimed in claim 1, it is characterized in that: described torsion allays device and comprises tubular Torque tube that is fixed on described jack pivot side and the pipe box that is fixed on described electro-motor front end, described Torque tube and described pipe box socket, and fix by stove bolt.

8, the electronic jack of through-coupling formula as claimed in claim 7, it is characterized in that: an end of described drive screw has a bearing carrier ring, can insert bearing in it so that drive screw is more smooth and easy when rotating.

9, the electronic jack of through-coupling formula as claimed in claim 7, it is characterized in that: described electro-motor is made up of miniature motor and reducing gearbox, and miniature motor is located at reducing gear chamber interior wall upper end, and is inverted L shape and takes up room with minimizing.