CN100575238C - A kind of electric scissor jack - Google Patents

A kind of electric scissor jack Download PDF

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Publication number
CN100575238C
CN100575238C CN200610050473A CN200610050473A CN100575238C CN 100575238 C CN100575238 C CN 100575238C CN 200610050473 A CN200610050473 A CN 200610050473A CN 200610050473 A CN200610050473 A CN 200610050473A CN 100575238 C CN100575238 C CN 100575238C
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China
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arm
auxiliary
drive screw
trailing arm
act
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CN101058393A (en
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郑元
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郑元
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Abstract

A kind of electric scissor jack, comprise that two left-right symmetric lift assembly, lifting platform, base, drive screw and reducing motor in line of centers, drive screw is connected with the output shaft of reducing motor, the upper end of last act arm is hinged with lifts auxiliary, the lower end of following trailing arm is hinged with the subiculum auxiliary, angle between last act auxiliary and the drive screw is greater than the angle between last act arm and the drive screw, and the angle between subiculum auxiliary and the drive screw is greater than the angle between following trailing arm and the drive screw.Last act arm is provided with the rotary stopper mechanism of lifting auxiliary, and following trailing arm is provided with the rotary stopper mechanism of subiculum auxiliary.Its beneficial effect is: on lift and can produce the bigger angle of angle between auxiliary, subiculum auxiliary and the drive screw, the arm of force in top lifting stage has extended, the torque that the top lifting stage is applied on the drive screw does not need very big, reducing motor just can be done smallerly, thereby makes the weight and volume of whole jack reduce greatly.

Description

A kind of electric scissor jack
(1) technical field
The present invention relates to a kind of scissors-type jack, relate in particular to a kind of electric scissor jack.
(2) background technology
At present, roadlice with the basic structure of the electric scissor jack that car carries is: a pair of act arm of going up is connected by forward and backward bearing pin with a pair of trailing arm down, the joint of last act arm is equipped with lifting platform, the joint of following trailing arm is equipped with base, one drive screw passes through forward and backward bearing pin, be threaded between the preceding bearing pin at the place of passing through and the drive screw, the rear end of drive screw connects the output shaft of reducing motor, and reducing motor moves needed electric power and provided by the Cigarette lighter of automobile.Drive the drive screw rotation by reducing motor during use, the drive screw of rotation will drive bearing pin and make axial motion on the axis direction of drive screw, like this then go up to lift arm and following trailing arm and under the effect of preceding bearing pin, bend and open around forward and backward bearing pin, thus picking-up or put down roadlice.
According to mechanics principle as can be known, jack is in lifting the process of weight, the picking-up height change that drives the required torque of drive screw and be with jack changes, its size depends on lifts arm, angle between following trailing arm and the drive screw: in the top lifting stage, last act arm, angle between following trailing arm and the drive screw is less, the arm of force is shorter, reducing motor need provide enough big torque, to guarantee that reducing motor can drive the drive screw rotation smoothly, in the top lifting process afterwards along with last act arm, angle between following trailing arm and the drive screw is increasing, the arm of force is elongated, and the required torque that provides of reducing motor is more and more littler.But in order to provide enough big torque in the top lifting stage, need large diameter motor usually, cause the weight of jack big, volume is big, this runs counter to portable principle of this electric scissor jack itself.
In addition, as previously mentioned, reducing motor moves needed electric power and is provided by the Cigarette lighter of automobile, and the maximum current that general roadlice Cigarette lighter can provide is 15A, though the minimum heights of roofs that rises of existing this electric scissor jack has only 90mm usually, for the working current at top lifting stage deceleration motor is no more than 15A, but requires jack to begin top lifting more than the 120mm height, and top lifting weight is restriction to some extent also, therefore can't be applicable to from the roadlice great, that the chassis is low.
(3) summary of the invention
The deficiency that electric scissor jack weight in the prior art is big, volume big in order to overcome, be not easy to carry, range of use is narrower the invention provides the electric scissor jack that a kind of structural weight is little, volume is little, easy to carry, applied widely.
The technical scheme that the present invention solves its technical matters is:
A kind of electric scissor jack, comprise that two left-right symmetric lift assembly, lifting platform, base, drive screw and reducing motor in line of centers, described drive screw is connected with the output shaft of described reducing motor, the output shaft of described reducing motor is stretched out by the front end cover of reducing motor, each is lifted assembly and comprises act arm and following trailing arm, and it is hinged that bearing pin is passed through in the lower end of described upward act arm and the upper end of described trailing arm down; Described drive screw passes through wherein bearing pin at least, the bearing pin at the place of passing through and wherein being threaded between a drive screw, be threaded between the bearing pin at the place of passing through and the drive screw, the described upper end of lifting arm of going up is hinged with the act auxiliary, the described lower end of trailing arm down is hinged with the subiculum auxiliary, angle between described upward act auxiliary and the drive screw is greater than the described angle of lifting between arm and the drive screw of going up, angle between described subiculum auxiliary and the described drive screw is greater than the angle between described trailing arm down and the drive screw, the upper end and the described lifting platform of described upward act auxiliary are hinged, and the lower end of described subiculum auxiliary and described base are hinged; Described going up lifted the rotary stopper mechanism that arm is provided with the act auxiliary, and described trailing arm down is provided with the rotary stopper mechanism of subiculum auxiliary.
Further, described arm and the following trailing arm upward lifted is about symmetry about the described drive screw.
Further, described go up to lift auxiliary two ends, subiculum auxiliary two ends, on lift the arm upper end, the trailing arm lower end is equipped with the synchronous fluted disc that cooperatively interacts down, when these synchronous fluted discs are used for the jack operation; Described going up between act arm and the following trailing arm has horizontal location mechanism.
Further, the set-up mode of described motor has four kinds basically: a kind of is that described reducing motor is lifted arm and described down between the trailing arm on described, the rear side housing of described reducing motor is with wherein a bearing pin is hinged, described drive screw passes through another root bearing pin, is threaded between the bearing pin at the place of passing through and the drive screw; A kind of is that described reducing motor is positioned at described go up the act outside arm and the following trailing arm, and described drive screw passes through described two bearing pins, is threaded away between the bearing pin of reducing motor and the drive screw; A kind of is the housing of described reducing motor with wherein a bearing pin is hinged, and described drive screw passes through another root bearing pin, is threaded between the bearing pin at the place of passing through and the drive screw; Another kind is the front end cover of described reducing motor with wherein a bearing pin is hinged, and the housing of described reducing motor is positioned at described going up to be lifted outside arm and the following trailing arm, and described drive screw passes through another root bearing pin, is threaded between the bearing pin at the place of passing through and the drive screw.
Further, the concrete structure of the rotary stopper mechanism of last act auxiliary, subiculum auxiliary is: described upward act arm has vertical cavity down, described trailing arm down has vertical cavity up, described going up lifted the inboard that auxiliary is articulated in described vertical cavity down, and described subiculum auxiliary is articulated in the inboard of described vertical cavity up.Vertical cavity is down surrounded by top panel and two blocks of side plates, vertical cavity is up surrounded by lower faceplate and two side panels, when last act auxiliary rotates to the top panel of vertical cavity down, last act auxiliary is limited, when the subiculum auxiliary went to the lower faceplate of vertical cavity up, the subiculum auxiliary was limited; Perhaps: described go up to lift is equipped with horizontal going up and lifts auxiliary rotary stopper axle on the arm, describedly is equipped with horizontal subiculum auxiliary rotary stopper axle on the trailing arm down.When last act auxiliary and subiculum arm go to the rotary stopper axle, on lift auxiliary and the subiculum auxiliary is limited.
The concrete structure of the horizontal location mechanism between last act arm and the following trailing arm is: described going up on the act arm is connected with vertical registration mast, and the length of this vertical registration mast goes up the distance of lifting between arm and the following trailing arm down with the top lifting state and equates.Perhaps: described last the act on the arm is connected with first position block, is connected with second position block on the described following trailing arm, and described first position block and described second position block offset under the top lifting state.
In the top lifting stage, when applying torque drive screw rotated, since the angle between last act auxiliary and the drive screw greater than the angle between the angle between last act arm and the drive screw, subiculum auxiliary and the drive screw greater than the angle between trailing arm and the drive screw down, therefore upward act auxiliary, subiculum auxiliary elder generation rotate around hinge separately, lifting platform rises, till last act auxiliary, subiculum auxiliary are spacing by rotary stopper mechanism separately.Go up act auxiliary and last act arm, subiculum auxiliary and the interlock of following trailing arm then and rotate around bearing pin, platform further promotes.After last act auxiliary closed up, the subiculum auxiliary closes up, interlock was removed, on lift arm, trailing arm rises to vertex around bearing pin rotation separately until platform down.In whole lifting process, the synchronous fluted disc of each that cooperatively interacts is meshing with each other, and rises to guarantee the lifting platform straight line.In the top lifting stage, on lift between arm and the following trailing arm location by horizontal location mechanism, the stability of system is guaranteed in the swing that prevents to lift arm, time trailing arm.
Beneficial effect of the present invention is: 1. lift on and can produce the bigger angle of angle between auxiliary, subiculum auxiliary and the drive screw, the arm of force in top lifting stage has extended, so the torque that the top lifting stage is applied on the drive screw does not need very big, reducing motor just can be done smallerly, thereby makes the weight and volume of whole jack reduce greatly.2. because the top lifting stage is applied to torque on the drive screw does not need very greatly, therefore do not need very greatly at the working current of top lifting stage deceleration motor, the Cigarette lighter of general roadlice can both provide the electric current of analog value, and range of use is unrestricted substantially.
(4) description of drawings
Fig. 1 is that the present invention is in the structural representation under the top lifting state.
Fig. 2 is that the present invention is in the part sectional view under the top lifting state.
Fig. 3 is last arm and last act auxiliary, the view when descending trailing arm and subiculum auxiliary to be about to link of lifting.
Fig. 4 is the view when upward lifting arm and last act auxiliary, following trailing arm and the interlock of subiculum auxiliary.
Fig. 5 is that last act auxiliary closes up, the view when the subiculum auxiliary closes up.
Fig. 6 goes up to lift the view that auxiliary closes up, the subiculum auxiliary closes up back jack continuation operation.
Fig. 7 is the structural representation of embodiment five described electric scissor jacks.
Fig. 8 is the structural representation of embodiment six described electric scissor jacks.
(5) specific embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.
Embodiment one
With reference to Fig. 1,2,3,4,5,6, a kind of electric scissor jack, comprise that two left-right symmetric lift assembly, lifting platform 1, base 2, drive screw 3 and reducing motor 4 in line of centers, described drive screw 3 is connected with the output shaft of described reducing motor 4, each is lifted assembly and comprises act arm 5 and following trailing arm 6, and it is hinged that bearing pin 7 is passed through in the lower end of described upward act arm 5 and the upper end of described trailing arm 6 down.Described reducing motor 4 is lifted between arm 5 and the described following trailing arm 6 on described, and reducing motor 4 can dwindle the overall dimensions of jack between last act arm 5 and following trailing arm 6.The rear side housing of described reducing motor 4 is with wherein a bearing pin is hinged, and described drive screw 3 passes through another root bearing pin, is threaded between the bearing pin at the place of passing through and the drive screw 3.Described upward act arm 5 and following trailing arm 6 are symmetrical about in the of 3 about described drive screw, move the harmony of synchronism and mechanism preferably to realize act arm, following trailing arm.
The described upper end of lifting arm 5 of going up is hinged with act auxiliary 8, the described lower end of trailing arm 6 down is hinged with subiculum auxiliary 9, described upward act arm 5 has vertical cavity down, described trailing arm 6 down has vertical cavity up, described going up lifted the inboard that auxiliary 8 is articulated in described vertical cavity down, and described subiculum auxiliary 9 is articulated in the inboard of described vertical cavity up.Angle between described upward act auxiliary 8 and the drive screw 3 is greater than the described angle of lifting between arm 5 and the drive screw 3 of going up, and the angle between described subiculum auxiliary 9 and the described drive screw 3 is greater than the angle between described trailing arm 6 down and the drive screw 3.The upper end and the described lifting platform 1 of described upward act auxiliary 8 are hinged, and the lower end of described subiculum auxiliary 9 and described base 2 are hinged.
In the top lifting stage, when applying torque drive screw 3 rotated, since the angle between last act auxiliary 8 and the drive screw 3 greater than the angle between the angle between last act arm 5 and the drive screw 3, subiculum auxiliary 9 and the drive screw 3 greater than the angle that descends between trailing arm 6 and the drive screw 3, by mechanics principle as can be known, last act auxiliary 8, subiculum auxiliary 9 elder generations rotate around hinge separately, and lifting platform 1 rises.Vertical cavity is down surrounded by top panel and two blocks of side plates, vertical cavity is up surrounded by lower faceplate and two side panels, when last act auxiliary 8 rotates to the top panel of vertical cavity down, last act auxiliary 8 is limited, when subiculum auxiliary 9 went to the lower faceplate of vertical cavity up, subiculum auxiliary 9 was limited.After last act auxiliary 8, subiculum auxiliary 9 are limited, on lift auxiliary 8 and link with following trailing arm 6 with last act arm 5, subiculum auxiliary 9 and rotate around bearing pin, lifting platform 1 further promotes.After last act auxiliary 8 closed up, subiculum auxiliary 9 closes up, interlock was removed, on lift arm 5, trailing arm 6 rises to vertex around bearing pin rotation separately until lifting platform 1 down.
Embodiment two
With reference to Fig. 1,2,3,4,5,6, a kind of electric scissor jack, comprise that two left-right symmetric lift assembly, lifting platform 1, base 2, drive screw 3 and reducing motor 4 in line of centers, described drive screw 3 is connected with the output shaft of described reducing motor 4, each is lifted assembly and comprises act arm 5 and following trailing arm 6, and it is hinged that bearing pin 7 is passed through in the lower end of described upward act arm 5 and the upper end of described trailing arm 6 down.Described reducing motor 4 is lifted between arm 5 and the described following trailing arm 6 on described, and reducing motor 4 can dwindle the overall dimensions of jack between last act arm 5 and following trailing arm 6.The rear side housing of described reducing motor 4 is with wherein a bearing pin is hinged, and described drive screw 3 passes through another root bearing pin, is threaded between the bearing pin at the place of passing through and the drive screw 3.Described upward act arm 5 and following trailing arm 6 are symmetrical about in the of 3 about described drive screw, move the harmony of synchronism and mechanism preferably to realize act arm, following trailing arm.
The described upper end of lifting arm 5 of going up is hinged with act auxiliary 8, and the described lower end of trailing arm 6 down is hinged with subiculum auxiliary 9.Angle between described upward act auxiliary 8 and the drive screw 3 is greater than the described angle of lifting between arm 5 and the drive screw 3 of going up, angle between described subiculum auxiliary 9 and the described drive screw 3 is greater than the angle between described trailing arm 6 down and the drive screw 3, described go up to lift is equipped with horizontal going up and lifts auxiliary rotary stopper axle 10 on the arm 5, describedly be equipped with horizontal subiculum auxiliary rotary stopper axle 11 on the trailing arm 6 down.The upper end and the described lifting platform 1 of described upward act auxiliary 8 are hinged, and the lower end of described subiculum auxiliary 9 and described base 2 are hinged.
In the top lifting stage, when applying torque drive screw 3 rotated, since the angle between last act auxiliary 8 and the drive screw 3 greater than the angle between the angle between last act arm 5 and the drive screw 3, subiculum auxiliary 9 and the drive screw 3 greater than the angle that descends between trailing arm 6 and the drive screw 3, by mechanics principle as can be known, last act auxiliary 8, subiculum auxiliary 9 elder generations rotate around hinge separately, and lifting platform 1 rises.When last act auxiliary 8 and subiculum auxiliary 9 go to separately rotary stopper axle, last act auxiliary 8 and subiculum auxiliary 9 are limited, after last act auxiliary 8, subiculum auxiliary 9 are limited, on lift auxiliary 8 and link with following trailing arm 6 with last act arm 5, subiculum auxiliary 9 and rotate around bearing pin, lifting platform 1 further promotes.After last act auxiliary 8 closed up, subiculum auxiliary 9 closes up, interlock was removed, on lift arm 5, trailing arm 6 rises to vertex around bearing pin rotation separately until lifting platform 1 down.
Embodiment three
Described drive screw passes through described two bearing pins, described reducing motor is positioned at described going up and lifts outside arm and the following trailing arm, the output shaft of reducing motor is connected with drive screw driving drive screw, is threaded away between the bearing pin of reducing motor and the drive screw.All the other structures are identical with embodiment one with embodiment.Reducing motor is positioned at and lifts outside arm and the following trailing arm, so can increase the overall dimensions of jack to a certain extent in the present embodiment.
Embodiment four
Described drive screw passes through described two bearing pins, described reducing motor is positioned at described going up and lifts outside arm and the following trailing arm, the output shaft of reducing motor is connected with drive screw driving drive screw, is threaded away between the bearing pin of reducing motor and the drive screw.All the other structures are identical with embodiment two with embodiment.Reducing motor is positioned at and lifts outside arm and the following trailing arm, so can increase the overall dimensions of jack to a certain extent in the present embodiment.
Embodiment five
With reference to Fig. 7, the housing of described reducing motor 4 is with wherein a bearing pin is hinged, and drive screw 3 passes through another root bearing pin, is threaded between the bearing pin at the place of passing through and the drive screw 3.This also is a kind of set-up mode of feasible reducing motor.All the other structures are identical with embodiment one with embodiment.
Embodiment six
With reference to Fig. 8, the front end cover of described reducing motor 4 is with wherein a bearing pin is hinged, and the housing of described reducing motor 4 is positioned at described go up the act outside arm and the following trailing arm, and drive screw 3 passes through another root bearing pin, is threaded between the bearing pin at the place of passing through and the drive screw 3.This also is a kind of set-up mode of feasible reducing motor.All the other structures are identical with embodiment one with embodiment.
Embodiment seven
With reference to Fig. 1,2,3,4,5,6, described go up to lift auxiliary two ends, subiculum auxiliary two ends, on lift the arm upper end, the trailing arm lower end is equipped with the synchronous fluted disc 12 that cooperatively interacts down.Described going up has horizontal location mechanism between act arm 5 and the following trailing arm 6: promptly go up on the act arm 5 and be connected with vertical registration mast 13, the length of this vertical registration mast 13 equates with the distance that the top lifting state is gone up between act arm 5 and the following trailing arm 6 down.In whole lifting process, the synchronous fluted disc 12 of each that cooperatively interacts is meshing with each other, and rises to guarantee lifting platform 1 straight line.In the top lifting stage, on lift and have vertical registration mast 13 to carry out horizontal location between arm 5 and the following trailing arm 6, will go up and lift arm 5, jail, trailing arm 6 top down, the stability of system is guaranteed in the swing that prevents to lift arm 5, following trailing arm 6.All the other structures are identical with embodiment one with embodiment.
Embodiment eight
With reference to Fig. 1,2,3,4,5,6, described go up to lift auxiliary two ends, subiculum auxiliary two ends, on lift the arm upper end, the trailing arm lower end is equipped with the synchronous fluted disc 12 that cooperatively interacts down.Described going up has horizontal location mechanism between act arm 5 and the following trailing arm 6: promptly go up on the act arm 5 and be connected with vertical registration mast 13, the length of this vertical registration mast 13 equates with the distance that the top lifting state is gone up between act arm 5 and the following trailing arm 6 down.In whole lifting process, the synchronous fluted disc 12 of each that cooperatively interacts is meshing with each other, and rises to guarantee lifting platform 1 straight line.In the top lifting stage, on lift and have vertical registration mast 13 to carry out horizontal location between arm 5 and the following trailing arm 6, will go up and lift arm 5, jail, trailing arm 6 top down, the stability of system is guaranteed in the swing that prevents to lift arm 5, following trailing arm 6.All the other structures are identical with embodiment two with embodiment.
Embodiment nine
With reference to Fig. 1,2,3,4,5,6, described go up to lift auxiliary two ends, subiculum auxiliary two ends, on lift the arm upper end, the trailing arm lower end is equipped with the synchronous fluted disc 12 that cooperatively interacts down.Described going up has horizontal location mechanism between act arm 5 and the following trailing arm 6: promptly go up on the act arm 5 and be connected with vertical registration mast 13, the length of this vertical registration mast 13 equates with the distance that the top lifting state is gone up between act arm 5 and the following trailing arm 6 down.In whole lifting process, the synchronous fluted disc 12 of each that cooperatively interacts is meshing with each other, and rises to guarantee lifting platform 1 straight line.In the top lifting stage, on lift and have vertical registration mast 13 to carry out horizontal location between arm 5 and the following trailing arm 6, will go up and lift arm 5, jail, trailing arm 6 top down, the stability of system is guaranteed in the swing that prevents to lift arm 5, following trailing arm 6.All the other structures are identical with embodiment three with embodiment.
Embodiment ten
With reference to Fig. 1,2,3,4,5,6, described go up to lift auxiliary two ends, subiculum auxiliary two ends, on lift the arm upper end, the trailing arm lower end is equipped with the synchronous fluted disc 12 that cooperatively interacts down.Described going up has horizontal location mechanism between act arm 5 and the following trailing arm 6: promptly go up on the act arm 5 and be connected with vertical registration mast 13, the length of this vertical registration mast 13 equates with the distance that the top lifting state is gone up between act arm 5 and the following trailing arm 6 down.In whole lifting process, the synchronous fluted disc 12 of each that cooperatively interacts is meshing with each other, and rises to guarantee lifting platform 1 straight line.In the top lifting stage, on lift and have vertical registration mast 13 to carry out horizontal location between arm 5 and the following trailing arm 6, will go up and lift arm 5, jail, trailing arm 6 top down, the stability of system is guaranteed in the swing that prevents to lift arm 5, following trailing arm 6.All the other structures are identical with embodiment four with embodiment.
Embodiment 11
With reference to Fig. 1,2,3,4,5,6,7, described go up to lift auxiliary two ends, subiculum auxiliary two ends, on lift the arm upper end, the trailing arm lower end is equipped with the synchronous fluted disc 12 that cooperatively interacts down.Described going up has horizontal location mechanism between act arm 5 and the following trailing arm 6: promptly go up on the act arm 5 and be connected with vertical registration mast 13, the length of this vertical registration mast 13 equates with the distance that the top lifting state is gone up between act arm 5 and the following trailing arm 6 down.In whole lifting process, the synchronous fluted disc 12 of each that cooperatively interacts is meshing with each other, and rises to guarantee lifting platform 1 straight line.In the top lifting stage, on lift and have vertical registration mast 13 to carry out horizontal location between arm 5 and the following trailing arm 6, will go up and lift arm 5, jail, trailing arm 6 top down, the stability of system is guaranteed in the swing that prevents to lift arm 5, following trailing arm 6.All the other structures are identical with embodiment five with embodiment.
Embodiment 12
With reference to Fig. 1,2,3,4,5,6,8, described go up to lift auxiliary two ends, subiculum auxiliary two ends, on lift the arm upper end, the trailing arm lower end is equipped with the synchronous fluted disc 12 that cooperatively interacts down.Described going up has horizontal location mechanism between act arm 5 and the following trailing arm 6: promptly go up on the act arm 5 and be connected with vertical registration mast 13, the length of this vertical registration mast 13 equates with the distance that the top lifting state is gone up between act arm 5 and the following trailing arm 6 down.In whole lifting process, the synchronous fluted disc 12 of each that cooperatively interacts is meshing with each other, and rises to guarantee lifting platform 1 straight line.In the top lifting stage, on lift and have vertical registration mast 13 to carry out horizontal location between arm 5 and the following trailing arm 6, will go up and lift arm 5, jail, trailing arm 6 top down, the stability of system is guaranteed in the swing that prevents to lift arm 5, following trailing arm 6.All the other structures are identical with embodiment six with embodiment.
Embodiment 13
With reference to Fig. 1,2,3,4,5,6, described go up to lift auxiliary two ends, subiculum auxiliary two ends, on lift the arm upper end, the trailing arm lower end is equipped with the synchronous fluted disc 12 that cooperatively interacts down.Described going up on the act arm 5 is connected with first position block 14, be connected with second position block 15 on the trailing arm 6 under described, described first position block 24 offsets with described second position block 15 under the top lifting state, to form the horizontal location mechanism of lifting between arm 5 and the following trailing arm 6.In whole lifting process, the synchronous fluted disc 12 of each that cooperatively interacts is meshing with each other, and rises to guarantee lifting platform 1 straight line.In the top lifting stage, first position block 14 offsets with described second position block 15 and carries out horizontal location, will go up and lift arm 5, jail, following trailing arm 6 top, prevents to lift arm 5, the swing of trailing arm 6 down, guarantees the stability of system.All the other structures are identical with embodiment one with embodiment.
Embodiment 14
With reference to Fig. 1,2,3,4,5,6, described go up to lift auxiliary two ends, subiculum auxiliary two ends, on lift the arm upper end, the trailing arm lower end is equipped with the synchronous fluted disc 12 that cooperatively interacts down.Described going up on the act arm 5 is connected with first position block 14, be connected with second position block 15 on the trailing arm 6 under described, described first position block 24 offsets with described second position block 15 under the top lifting state, to form the horizontal location mechanism of lifting between arm 5 and the following trailing arm 6.In whole lifting process, the synchronous fluted disc 12 of each that cooperatively interacts is meshing with each other, and rises to guarantee lifting platform 1 straight line.In the top lifting stage, first position block 14 offsets with described second position block 15 and carries out horizontal location, will go up and lift arm 5, jail, following trailing arm 6 top, prevents to lift arm 5, the swing of trailing arm 6 down, guarantees the stability of system.All the other structures are identical with embodiment two with embodiment.
Embodiment 15
With reference to Fig. 1,2,3,4,5,6, described go up to lift auxiliary two ends, subiculum auxiliary two ends, on lift the arm upper end, the trailing arm lower end is equipped with the synchronous fluted disc 12 that cooperatively interacts down; Described going up on the act arm 5 is connected with first position block 14, be connected with second position block 15 on the trailing arm 6 under described, described first position block 24 offsets with described second position block 15 under the top lifting state, to form the horizontal location mechanism of lifting between arm 5 and the following trailing arm 6.In whole lifting process, the synchronous fluted disc 12 of each that cooperatively interacts is meshing with each other, and rises to guarantee lifting platform 1 straight line.In the top lifting stage, first position block 14 offsets with described second position block 15 and carries out horizontal location, will go up and lift arm 5, jail, following trailing arm 6 top, prevents to lift arm 5, the swing of trailing arm 6 down, guarantees the stability of system.All the other structures are identical with embodiment three with embodiment.
Embodiment 16
With reference to Fig. 1,2,3,4,5,6, described go up to lift auxiliary two ends, subiculum auxiliary two ends, on lift the arm upper end, the trailing arm lower end is equipped with the synchronous fluted disc 12 that cooperatively interacts down; Described going up on the act arm 5 is connected with first position block 14, be connected with second position block 15 on the trailing arm 6 under described, described first position block 24 offsets with described second position block 15 under the top lifting state, to form the horizontal location mechanism of lifting between arm 5 and the following trailing arm 6.In whole lifting process, the synchronous fluted disc 12 of each that cooperatively interacts is meshing with each other, and rises to guarantee lifting platform 1 straight line.In the top lifting stage, first position block 14 offsets with described second position block 15 and carries out horizontal location, will go up and lift arm 5, jail, following trailing arm 6 top, prevents to lift arm 5, the swing of trailing arm 6 down, guarantees the stability of system.All the other structures are identical with embodiment four with embodiment.
Embodiment 17
With reference to Fig. 1,2,3,4,5,6,7, described go up to lift auxiliary two ends, subiculum auxiliary two ends, on lift the arm upper end, the trailing arm lower end is equipped with the synchronous fluted disc 12 that cooperatively interacts down; Described going up on the act arm 5 is connected with first position block 14, be connected with second position block 15 on the trailing arm 6 under described, described first position block 24 offsets with described second position block 15 under the top lifting state, to form the horizontal location mechanism of lifting between arm 5 and the following trailing arm 6.In whole lifting process, the synchronous fluted disc 12 of each that cooperatively interacts is meshing with each other, and rises to guarantee lifting platform 1 straight line.In the top lifting stage, first position block 14 offsets with described second position block 15 and carries out horizontal location, will go up and lift arm 5, jail, following trailing arm 6 top, prevents to lift arm 5, the swing of trailing arm 6 down, guarantees the stability of system.All the other structures are identical with embodiment five with embodiment.
Embodiment 18
With reference to Fig. 1,2,3,4,5,6,8, described go up to lift auxiliary two ends, subiculum auxiliary two ends, on lift the arm upper end, the trailing arm lower end is equipped with the synchronous fluted disc 12 that cooperatively interacts down; Described going up on the act arm 5 is connected with first position block 14, be connected with second position block 15 on the trailing arm 6 under described, described first position block 24 offsets with described second position block 15 under the top lifting state, to form the horizontal location mechanism of lifting between arm 5 and the following trailing arm 6.In whole lifting process, the synchronous fluted disc 12 of each that cooperatively interacts is meshing with each other, and rises to guarantee lifting platform 1 straight line.In the top lifting stage, first position block 14 offsets with described second position block 15 and carries out horizontal location, will go up and lift arm 5, jail, following trailing arm 6 top, prevents to lift arm 5, the swing of trailing arm 6 down, guarantees the stability of system.All the other structures are identical with embodiment six with embodiment.

Claims (9)

1. electric scissor jack, comprise that two left-right symmetric lift assembly, lifting platform, base, drive screw and reducing motor in line of centers, described drive screw is connected with the output shaft of described reducing motor, the output shaft of described reducing motor is stretched out by the front end cover of reducing motor, each is lifted assembly and comprises act arm and following trailing arm, and it is hinged that bearing pin is passed through in the lower end of described upward act arm and the upper end of described trailing arm down; Described drive screw passes through wherein bearing pin at least, is threaded between the bearing pin at the place of passing through and the drive screw, it is characterized in that:
The described upper end of lifting arm of going up is hinged with the act auxiliary, the described lower end of trailing arm down is hinged with the subiculum auxiliary, angle between described upward act auxiliary and the drive screw is greater than the described angle of lifting between arm and the drive screw of going up, angle between described subiculum auxiliary and the described drive screw is greater than the angle between described trailing arm down and the drive screw, the upper end and the described lifting platform of described upward act auxiliary are hinged, and the lower end of described subiculum auxiliary and described base are hinged;
Described going up lifted the rotary stopper mechanism that arm is provided with the act auxiliary, and described trailing arm down is provided with the rotary stopper mechanism of subiculum auxiliary.
2. electric scissor jack as claimed in claim 1 is characterized in that: described go up to lift arm to following trailing arm to symmetrical up and down about described drive screw.
3. electric scissor jack as claimed in claim 2 is characterized in that: described go up to lift auxiliary two ends, subiculum auxiliary two ends, on lift the arm upper end, the trailing arm lower end is equipped with the synchronous fluted disc that cooperatively interacts down; Described going up between act arm and the following trailing arm has horizontal location mechanism.
4. electric scissor jack as claimed in claim 1, it is characterized in that: described reducing motor is lifted arm and described down between the trailing arm on described, the rear side housing of described reducing motor is with wherein a bearing pin is hinged, described drive screw passes through another root bearing pin, is threaded between the bearing pin at the place of passing through and the drive screw.
5. electric scissor jack as claimed in claim 1 is characterized in that: described drive screw passes through described two bearing pins, and described reducing motor is positioned at described going up and lifts outside arm and the following trailing arm.
6. electric scissor jack as claimed in claim 1 is characterized in that: the housing of described reducing motor is with wherein a bearing pin is hinged, and described drive screw passes through another root bearing pin, is threaded between the bearing pin at the place of passing through and the drive screw.
7. electric scissor jack as claimed in claim 1, it is characterized in that: the front end cover of described reducing motor is with wherein a bearing pin is hinged, the housing of described reducing motor is positioned at described going up and lifts outside arm and the following trailing arm, described drive screw passes through another root bearing pin, is threaded between the bearing pin at the place of passing through and the drive screw.
8. as the described electric scissor jack of one of claim 4~7, it is characterized in that: described upward act arm has vertical cavity down, described trailing arm down all has vertical cavity up, described going up lifted the inboard that auxiliary is articulated in described vertical cavity down, and described subiculum auxiliary is articulated in the inboard of described vertical cavity up;
Described going up on the act arm is connected with vertical registration mast, and the length of this vertical registration mast goes up the distance of lifting between arm and the following trailing arm down with the top lifting state and equates.
9. as the described electric scissor jack of one of claim 4~7, it is characterized in that: described go up to lift is equipped with horizontal going up and lifts auxiliary rotary stopper axle on the arm, describedly is equipped with horizontal subiculum auxiliary rotary stopper axle on the trailing arm down;
Described last the act on the arm is connected with first position block, is connected with second position block on the described following trailing arm, and described first position block and described second position block offset under the top lifting state.
CN200610050473A 2006-04-21 2006-04-21 A kind of electric scissor jack Expired - Fee Related CN100575238C (en)

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US8602391B2 (en) 2008-07-15 2013-12-10 Audi Ag Telescopically collapsible scissor car jack

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CN101891134B (en) * 2009-05-19 2015-09-02 福特全球技术公司 Positive stop on jack
CN102070105A (en) * 2011-01-17 2011-05-25 宣伯民 Labor-saving spiral shearing jack
CN107337140B (en) * 2017-08-15 2019-04-23 江苏科技大学 A kind of electric adjustable jack

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