CN101898737A - Extension sleeve type elevator and automobile maintenance elevator - Google Patents
Extension sleeve type elevator and automobile maintenance elevator Download PDFInfo
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- CN101898737A CN101898737A CN2009101729060A CN200910172906A CN101898737A CN 101898737 A CN101898737 A CN 101898737A CN 2009101729060 A CN2009101729060 A CN 2009101729060A CN 200910172906 A CN200910172906 A CN 200910172906A CN 101898737 A CN101898737 A CN 101898737A
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- piston
- claw
- lower floor
- hydraulic actuating
- actuating cylinder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/28—Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/10—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks
- B66F7/16—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F17/00—Safety devices, e.g. for limiting or indicating lifting force
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F2700/00—Lifting apparatus
- B66F2700/12—Lifting platforms for vehicles or motorcycles or similar lifting apparatus
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Types And Forms Of Lifts (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Abstract
The present invention provides an extension sleeve type elevator and an automobile maintenance elevator, capable of saving an additional space for a falling-prevention device, and preventing a bearing station from rotating by the falling-prevention device. An lower layer piston is arranged in an external cylinder in a mode of freely sliding, an upper layer piston is arranged in the lower layer piston in a mode of freely sliding, a juxtaposition hydraulic cylinder is arranged in the lower layer piston and includes a downward hydraulic cylinder with a downward cylinder rod and an upward hydraulic cylinder with an upward cylinder rod side by side, the falling-prevention device of the upper layer piston is arranged inside the upper layer piston, and the falling-prevention device of the lower layer piston is arranged on the side faces of the lower layer piston and the side faces of the external cylinder. The lower layer piston slides upwards in the external cylinder by means of the extension of the downward cylinder rod, and the upper layer piston slides upwards in the lower layer piston by means of the extension of the upward cylinder rod.
Description
Technical field
The present invention relates to the automobile maintenance elevator of telescopic shaft (telescope) type elevator and use extension sleeve type elevator.
Background technology
Use is equipped with the lift for repairing vehicle of the extension sleeve type elevator of multi-level piston (ram), owing to making more shallow being popularized of melt pit (pit) of making.On the other hand, in this elevator that utilizes expanding-contracting action to carry out lifting moving, be provided with safety device, do not descend naturally so that can not hinder for some reason etc.
For example, the automobile maintenance elevator of patent documentation 1 (No. 2719500 communique of Japanese Patent) record, be that the elevator that is equipped with hydraulic actuating cylinder and multiple stage plunger (plunger) is placed in the melt pit, it has safety device, promptly, the clamping rpole that can be synchronized with the movement with plunger is set on elevator, the length of clamping rpole is made the most high-lift identical with plunger, and the engaging pawl that can engage with clamping rpole is arranged to and can be advanced or retreat, clamping rpole is divided into a plurality of, be arranged to the clamping rpole of extreme lower position is rotated on above-below direction, and will couple together between the clamping rpole of extreme lower position and the hydraulic actuating cylinder top with flexibly connecting member.
In this external patent documentation 2 (Japanese kokai publication hei 10-297445 communique), utilize a plurality of jacking systems to make the multiple stage elevator of bay-lift by the lifting of elevator main body order, below bay-lift, has restraint device, inside and outside a plurality of cylindrical shells that it will engage mutually in the end couple together, and when bay-lift sharply descends, limit the decline of a plurality of cylindrical shells.
, in the structure of above-mentioned patent documentation 1, because the structure that move in melt pit in the outside, particularly elevator that are used to stop the clamping rpole of decline to be installed in the plunger of multiple stage must will increase the width of melt pit, thereby increase executive cost.In addition, also must strengthen the melt pit lid that is used to cover melt pit.In addition, when elevator descends naturally, stop under the situation of lowering means action, owing to use with respect to elevator center accentric clamping rpole support load, destroy the stability of elevator easily, therefore need the pair of right and left clamping rpole, and in multiple stage, at joint area because the shaking to wait and cause bending easily of engagement section, so might make more obvious that fugitiveness shows.
In addition,, wish that the plummer be arranged on piston top does not rotate, but do not prevent the structure of rotating for safety.
On the other hand, in the structure of above-mentioned patent documentation 2, though be provided with dual claw and tooth bar (rack) conduct prevention lowering means, can stop decline, structures such as use release confirmation sensor are complicated, and the reliability existing problems more stablely.In addition, in that effect has under the situation of turning effort to plummer, might damage prevention lowering means as safety device.
Summary of the invention
Problem in view of the above, the extension sleeve type elevator that the purpose of this invention is to provide a kind of private space that does not need other being used to stop lowering means, utilizes simple structure just can stop plummer to rotate, and the automobile maintenance elevator that uses this extension sleeve type elevator.
In order to solve above-mentioned problem, the extension sleeve type elevator of invention one is characterised in that, in the urceolus of upright configuration, contain lower floor's piston of tubular sliding freely, in described lower floor piston, also contain the upper strata piston of tubular sliding freely, in described lower floor piston, contain hydraulic actuating cylinder arranged side by side, described hydraulic actuating cylinder arranged side by side comprises the downward hydraulic actuating cylinder that is arranged side by side and the hydraulic actuating cylinder that makes progress, described downward hydraulic actuating cylinder has the piston rod that utilizes oil pressure to extend downwards, described upwards hydraulic actuating cylinder has the piston rod that utilizes oil pressure upwards to extend, the prevention lowering means of described upper strata piston is set in the piston of described upper strata, the prevention lowering means of described lower floor piston is set in lower floor piston side and described urceolus side, utilize described elongation action to lower piston rod, described lower floor piston slides in described urceolus upward, and utilize described elongation action to upper piston rod, described upper strata piston slides in described lower floor piston upward, and described elevator is raise.
According to such structure, because the prevention lowering means of upper strata piston is housed in the piston of upper strata, the prevention lowering means of lower floor's piston is arranged on the side and the urceolus side of lower floor's piston, so can make be arranged on the outer prevention lowering means of urceolus that the space is set is smaller, can save the space that elevator is set.
In addition, by making extension sleeve type, can obtain the adjustable height longer than piston length.
In addition,, become the high pressure telescopic sleeve pipe type sucking, compare, the power fluid amount is reduced with low pressure type hydraulic actuating cylinder by making the structure of configuration hydraulic actuating cylinder arranged side by side in piston.
Invention two is characterised in that in the structure of described invention one, the prevention lowering means of described upper strata piston comprises: upper rack is arranged on the piston medial surface of described upper strata; And stop the decline claw, and being arranged on described hydraulic actuating cylinder arranged side by side top and engaging with described upper rack, the prevention lowering means of described lower floor piston comprises: following tooth bar is arranged on the described lower floor piston side; And stop the decline claw, be configured on the described urceolus sidepiece and and engage with described tooth bar down.
According to such structure,, can implement to stop decline reliably owing to be to comprise tooth bar and the mechanical prevention lowering means of the claw that engage with tooth bar.
Invention three is characterised in that, in described invention one or two structure, described upper rack is guided by the upper rack guide, described upper rack guide depression is arranged on the end of the hydraulic actuating cylinder adapter plate on fixing described hydraulic actuating cylinder arranged side by side top, described tooth bar down is by tooth bar guide guiding down, and described tooth bar guide depression down is arranged on and is arranged on the cylinder sleeve on the described urceolus, lower floor's piston slip usefulness.
According to such structure, be arranged on the upper rack guide device of the tooth bar on the piston of upper strata and the following tooth bar guide device that guiding is arranged on the tooth bar on lower floor's piston owing to have guiding, so piston can not rotate, can implement stable lifting action.And, because using, made with regard to essential member originally by both sides' tooth bar guide, thus do not need new member, cheap.
The automobile maintenance elevator of invention four is characterised in that, in the sunken melt pit that is provided with of work ground fovea superior, dispose any one described extension sleeve type elevator in a plurality of foregoing invention one to three, by whole described extension sleeve type elevators being extended synchronously, makes the plummer that is configured in the described melt pit to raise.
According to such structure, can save the space that extension sleeve type elevator is set, even, also there is no need to strengthen whole melt pit, so can reduce the melt pit lid because extension sleeve type elevator can be moved.In addition, owing to compare with the height of lifting, the length of piston can reduce, and the degree of depth of melt pit also can reduce.
According to the present invention, the prevention lowering means of upper strata piston is housed in the piston of upper strata, the prevention lowering means of lower floor's piston is arranged on the side and urceolus side of lower floor's piston, so can make be arranged on the outer prevention lowering means of urceolus that the space is set is very little, can save the space that extension sleeve type elevator is set.In addition,, compare, can obtain bigger adjustable height with the length of piston by making extension sleeve type.
And, use the lift for repairing vehicle of this extension sleeve type elevator that the melt pit lid is reduced, the degree of depth of melt pit is reduced.
Description of drawings
Fig. 1 is the local section instruction diagram of an example of expression automobile maintenance elevator of the present invention, is the cross sectional illustration figure that sees from the front that constitutes the extension sleeve type elevator of main portion.
Fig. 2 is the cross sectional illustration figure that sees from right flank of extension sleeve type elevator.
Fig. 3 makes extension sleeve type elevator be in the cross sectional illustration figure that sees from right flank of elongation state.
Fig. 4 makes extension sleeve type elevator be in the cross sectional illustration figure that sees from the back side of elongation state.
Fig. 5 is the instruction diagram of overlooking of extension sleeve type elevator.
Fig. 6 is the block diagram on hydraulic actuating cylinder arranged side by side top, and expression upper strata piston stops descending device.
Fig. 7 (a) is the birds-eye view that the upper strata piston stops descending device, and Fig. 7 (b) is a front view.
Fig. 8 is the A-A line section-drawing of Fig. 7 (b).
Fig. 9 is the block diagram that lower floor's piston stops descending device.
Figure 10 (a) is the birds-eye view that lower floor's piston stops descending device, and Figure 10 (b) is a lateral plan.
Description of reference numerals
1 extension sleeve type elevator
2 urceolus
3 lower floor's pistons
4 upper strata pistons
5 downward hydraulic actuating cylinders
5a is to lower piston rod
6 hydraulic actuating cylinders upwards
6a is to upper piston rod
7 plummers
10 hydraulic actuating cylinders arranged side by side
15 hydraulic actuating cylinder adapter plates
15b upper rack guide
Tooth bar guide under the 16a
20 upper strata pistons stop descending device
21 upper racks
Stop the decline claw on 22
30 lower floor's pistons stop descending device
31 times tooth bars
Stop the decline claw 32 times
The specific embodiment
With reference to the accompanying drawings the specific embodiment of the present invention is elaborated below.Fig. 1～Fig. 5 represents an example of automobile maintenance elevator of the present invention, Fig. 1 is the cross sectional illustration figure that sees from front jacking system, extension sleeve type elevator that constitutes automobile maintenance elevator, Fig. 2 is the cross sectional illustration figure that sees from its right flank, Fig. 3 makes extension sleeve type elevator be in the cross sectional illustration figure that sees from right flank of elongation state, Fig. 4 is the cross sectional illustration figure that sees from the back side that is in the state of elongation equally, and Fig. 5 is the instruction diagram of overlooking of extension sleeve type elevator.
In the melt pit that depression is provided with on work ground F, not have to represent among the figure, a plurality of (for example 4) this extension sleeve type elevator 1 is set, constitute automobile maintenance elevator, by making whole extension sleeve type elevators 1 synchronization telescope of setting, can raise the automobile that is configured on the melt pit or reduction.
Extension sleeve type elevator 1 is roughly in the square urceolus 2 at the section of upright configuration, contains the columnar lower floor piston 3 that can slide upward, also contains the columnar upper strata piston 4 that can slide upward in this lower floor's piston 3.In lower floor's piston 3, contain hydraulic actuating cylinder 10 arranged side by side, described hydraulic actuating cylinder arranged side by side 10 is to dispose the downward hydraulic actuating cylinder 5 of piston rod 5a of downward elongation and upwards hydraulic actuating cylinder 6 and the row arrangement and fixing that disposes the piston rod 6a of upwards elongation, by making downward hydraulic actuating cylinder 5, upwards hydraulic actuating cylinder 6 elongations, lower floor's piston 3 and upper strata piston 4 are all slided upward, the elevator action that raises.
Be provided for supporting the plummer 7 of automobile at the piston rod 6a front end (upper end) of hydraulic actuating cylinder 6 upwards, this plummer 7 be configured to when elevator lowers with work ground F on same.In addition, cover with melt pit lid 8 on the melt pit around the extension sleeve type elevator 1, constitute work ground F.
Hydraulic actuating cylinder 10 is fixed on the base plate 11 side by side, and described base plate 11 is arranged in the lower end flange portion of lower floor's piston 3.This base plate 11 is provided with piston rod through hole 11a, this piston rod through hole 11a passes piston rod (below be called to the lower piston rod) 5a of downward hydraulic actuating cylinder 5, and the front end to lower piston rod 5a that stretches out from piston rod through hole 11a is fixed on the base plate 13 of urceolus 2.
On the other hand, on the hydraulic actuating cylinder adapter plate 15 on the top of fixing hydraulic actuating cylinder 10 arranged side by side, form piston rod through hole 15a, make upwards the piston rod of hydraulic actuating cylinder 6 (below be called to upper piston rod) 6a pass piston rod through hole 15a, the front end to upper piston rod 6a that stretches out from piston rod through hole 15a is fixed on the piston cap 14 on the upper strata piston 4.And utilizing provides the hydraulic actuating cylinder pipe arrangement 17 that drives oil, is communicated with the base plate 5b that is arranged on position, downward hydraulic actuating cylinder 5 rear end and is arranged on the upwards upwards hydraulic actuating cylinder base plate 6b at position, hydraulic actuating cylinder rear end.
The upper strata piston that formation is prevented the part of the prevention lowering means that upper strata piston 4 descends naturally stops descending device 20, be fixed by bolts on the hydraulic actuating cylinder adapter plate 15, on the medial surface of corresponding upper piston 4, configuration constitutes the upper rack 21 of the another part that stops lowering means.Upper rack 21 is bar-shaped along being configured to up and down, with proper spacing fastening groove 21a is arranged to saw shape, is provided with the prevention lowering means of upper strata piston 4 in upper strata piston 4.The upper strata piston stops descending device 20 to assemble by the piston cap 14 that is fixed by bolts to upper strata piston 4 upper ends is taken off.
In addition, at the regulation position of hydraulic actuating cylinder adapter plate 15 sidepieces, form upper rack guide 15b, described upper rack guide 15b is consistent with the section form of upper rack 21, is cut into コ shape, and guiding upper rack 21 passes.
On the lateral surface of urceolus 2, stop descending device 30 with bolt lower floor piston, described lower floor piston stops descending device 30 to constitute a part that prevents the prevention lowering means that lower floor's piston 3 descends naturally, on the lateral surface of cooresponding lower floor piston 3, configuration constitutes the following tooth bar 31 of the another part that stops lowering means.Following tooth bar 31 is bar-shaped along being configured to up and down, with proper spacing fastening groove 31a is arranged to saw shape, and lower floor's piston 3 and urceolus 2 sides are provided with the prevention lowering means of lower floor's piston 3.Following tooth bar 31 is seen from the center of lower floor's piston 3, upper strata piston 4 and is configured on the same direction.
In addition, at the inside line of urceolus 2, the cylinder sleeve 16 that guiding lower floor piston 3 slides is set, on the regulation position of this cylinder sleeve 16, form tooth bar guide 16a down, following tooth bar guide 16a is consistent with the section form of following tooth bar 31, be cut into コ shape, guiding tooth bar 31 is down passed.
Fig. 6～Fig. 8 represents that in detail the upper strata piston stops descending device 20.Fig. 6 is a block diagram, and Fig. 7 (a) is a birds-eye view, and Fig. 7 (b) is a lateral plan, and Fig. 8 is the A-A line section-drawing of Fig. 7 (b).With bolt upper clipping claw anchor plate 23 is fixed on the hydraulic actuating cylinder adapter plate 15, advances in the horizontal or backward movement, stop decline claw 22 to be configured to and in upper clipping claw anchor plate 23, to slide with going up of ending of the fastening groove 21a card of upper rack 21.
Last prevention decline claw 22 has the clamping rpole 22a that stretches to the rear in the mode that connects upper clipping claw anchor plate 23, and it is chimeric with this clamping rpole 22a to be supported to rotary upward crank arm 25.Utilization is arranged on upper clipping claw on the upper clipping claw anchor plate 23 and goes up crank arms 25 by 24 pairs of pressing springs and apply application force, make crank arm 25 from the rear pressing fastened bar 22a, last prevention decline claw 22 is pressed towards the place ahead of working direction.
In addition, it is adjacent to press pressing spring 24 at the top of upper clipping claw anchor plate 23 and upper clipping claw, and upper cylinder 26 is set, and utilizes the effect of this upper cylinder 26 to make and stops decline claw 22 to carry out backward movement.That is, utilize the elongation action of upper cylinder 26, the axial and upper clipping claw of last crank arm 25 rotates in the opposite direction by the side that pressing spring 24 applies application force, and the antagonism upper clipping claw is pressed pressing spring 24, makes to stop decline claw 22 to carry out backward movement.
In addition, be used to detect 27 sidepieces that are bearing in upper clipping claw anchor plate 23 of upper clipping claw test rod that stop decline claw 22 positions.Upper clipping claw test rod 27 be arranged on the snap-latch piece 22b that stops on the decline claw 22 and engage, prevention decline claw 22 advances or backward movement and rotating in the response.The upper clipping claw that the rotary state utilization of this upper clipping claw test rod 27 is provided with in abutting connection with upper clipping claw test rod 27 enters detection valve (valve) 28 and detects.
Fig. 9, Figure 10 represent that lower floor's piston stops descending device 30, and Fig. 9 is a block diagram, and Figure 10 (a) is a birds-eye view, and Figure 10 (b) is a lateral plan.Lower floor's piston stops descending device 30 to be arranged on the supporting station 30a that is fixed by bolts on the urceolus 2, following claw anchor plate 33 is used bolt, advance in the horizontal or backward movement, the following prevention decline claw 32 that ends with the fastening groove 31a card of following tooth bar 31 be arranged to can be in slip in the claw anchor plate 33 down.
Stop decline claw 32 to have the clamping rpole 32a that rearward stretches out in the mode that connects down claw anchor plate 33 down, it is chimeric with this clamping rpole 32a to be supported to rotary lower crank arm 35.In following claw anchor plate 33, following claw is by pressing spring 34 outer being embedded on the clamping rpole 32a, stoping decline claw 32 to press towards the place ahead of working direction down.
In addition, on the regulation position of the urceolus 2 that stops decline claw 32 under the configuration, be provided with and make down the through hole that stops decline claw 32 to pass, following prevention decline claw 32 cards that stretch out end on the following tooth bar 31 that is arranged on lower floor's piston 4.
Lower crank arm 35 utilizes the lower cylinder 36 that is installed on the supporting station 30a in abutting connection with claw anchor plate 33 down to rotate, and the elongation action antagonism that utilizes lower cylinder 36 down claw by the effect of pressing spring 34 prevention decline claw 32 is retreated.
Be used to detect down another side that 37 of the following claw test rods that stretch out action that stop decline claw 32 are bearing in down claw anchor plate 33.Following claw test rod 37 be arranged on down the snap-latch piece 32b that stops on the decline claw 32 and engage, response is advancing or backward movement and rotating of prevention decline claw 32 down.The following claw that claw test rod 37 is provided with under the rotary state utilization adjacency of this time claw test rod 37 enters detection valve 38 and detects.
And, pneumoelectric relay (among the figure not expression) utilize air pipe arrangement 41 be connected upper clipping claw enter detect valve 28, claw enters and detects on the valve 38 down, on stop decline claw 22, stop the state of decline claw 32 can utilize the motion detection of pneumoelectric relay down.In addition, air pipe arrangement 41 by be used to detect upper clipping claw enter detect valve 28, the claw round tracheae 41b that enters the round detection tracheae 41a that detects valve 38 actions and driving upper cylinder 26 described later, lower cylinder 36 constitutes down.
Action to elevator describes below.If the rising button of push portion (not having expression among the figure) just offers downward hydraulic actuating cylinder 5 to oil from oil pressure pump (not expression the figure),, offer upwards hydraulic actuating cylinder 6 from the hydraulic actuating cylinder base plate 6b that makes progress then by hydraulic actuating cylinder pipe arrangement 17.To lower piston rod 5a and the action that utilizes this oil pressure to begin to advance to upper piston rod 6a, push urceolus 2 bottoms to lower piston rod 5a, downward hydraulic actuating cylinder 5 is risen, to upper piston rod 6a plummer 7 is risen.Its result, lower floor's piston 3 advances upward from urceolus 2, and upper strata piston 4 advances plummer 7 risings upward from lower floor's piston 3.That is the elevator action that raises.
At this moment, the upper strata piston stops going up of descending device 20 to stop decline claw 22 to be in the state that is pressed by pressing spring 24 forward direction by upper clipping claw, and the limit engages the limit with upper rack 21 rise upper strata piston 4.Simultaneously, lower floor's piston stops the following prevention decline claw 32 of descending device 30 to be in the state that is pressed by pressing spring 34 forward direction by following claw, and the limit engages the limit with following tooth bar 31 rise lower floor's piston 3.In addition, in vertical motion, because upper rack guide 15b guides upper rack 21 all the time, and the following tooth bar guide 16a of cylinder sleeve 16 guides down tooth bar 31 all the time, so the plummer 7 of supporting vehicle weight can not rotate and stable rising.
Upper clipping claw test rod 27, down claw test rod 37 is with last prevention decline claw 22, stop the action interlock of decline claw 32 down, with the fulcrum is that rotational action is carried out at the center, in the elevator uphill process, last prevention decline claw 22, stop decline claw 32 to be in the state that advances down, upper clipping claw enters detection valve 28, claw enters the direction inclination that detects valve 38 down to opening for upper clipping claw test rod 27, following claw test rod 37, and keeps this state.
Therefore and since this at present claw enter and detect valve 38 and just opening, leaked-in air flows into upper clipping claw and enters the side that enters that detects valve 28 by the preceding row of channels of the round detection tracheae 41a in the piston.And same, the inflow upper clipping claw enters the air of detection valve from leaving a side by coming and going the backward channel that detects tracheae 41a, and the interior claw of oil pressure unit that entering into figure does not have to represent enters the pneumoelectric relay.
Its result, making claw enter the pneumoelectric relay connects, detect and stop decline claw 22, stop decline claw 32 positive limits to engage down to rise on the limit with upper rack 21, time tooth bar 31, by showing this state etc., stop decline claw 22, stop the action of decline claw 32 also can confirm down even can not observe directly.
In addition, claw enters the pneumoelectric relay and is connected on the rising button circuit, if 10,000 one or two prevention decline claw otherwise engaging ground rises, then because claw enters the pneumoelectric relay and becomes disconnection, elevator can not rise.
Then, if the decline button of push portion (not expression among the figure), then in the inrush of air lower cylinder 36, following prevention decline claw 32 retreats.Air flows into the approaching side of upper cylinder 26 by coming and going the preceding row of channels of tracheae 41b simultaneously, makes to stop decline claw 22 to retreat.If last prevention decline claw 22 retreats fully, then air is from the backward channel that a side passes through to come and go tracheae 41b that leaves of upper cylinder 26, the claw that enters in the oil pressure unit leaves pneumoelectric relay (figure is expression not), make claw leave the pneumoelectric relay and connect, can detect prevention decline claw 22, stop decline claw 32 to retreat down.
In addition, if last prevention decline claw 22, stop decline claw 32 to retreat down, then with its action interlock, upper clipping claw test rod 27, claw test rod 37 is that rotational action is carried out at the center with the fulcrum shaft down, close upper clipping claw enter detect valve 28, claw enters and detects valve 38 down.So, air enters the pneumoelectric relay from the claw in the oil pressure unit and emits, can detect and stop decline claw 22, stop decline claw 32 to retreat down, utilize both sides' pneumoelectric relay can detect prevention decline claw 22, stop retreating of decline claw 32 down.
In addition, claw leaves pneumoelectric relay and claw and enters the pneumoelectric relay and be connected in the decline button circuit, makes claw leave that the pneumoelectric relay is connected and when making claw enter the pneumoelectric relay to disconnect, can implement the control that descends.
If last prevention decline claw 22, stop decline claw 32 to retreat down, remove and upper rack 21, engaging of tooth bar 31 down, then elevator just begins decline.Utilize the effect of oil pressure pump (not having expression among the figure), on the path opposite with the elevator rising, emit oil from the downward hydraulic actuating cylinder 5 and the hydraulic actuating cylinder 6 that makes progress, lower floor's piston 3 and upper strata piston 4 enter in the urceolus 2, and plummer 7 descends.That is, carry out the elevator down maneuver.At this moment, because upper rack guide 15b guides upper rack 21 all the time, the following tooth bar guide 16a of cylinder sleeve 16 guides down tooth bar 31 all the time, so the plummer 7 of supporting vehicle weight can not rotate and stable decline.
Like this, because the prevention lowering means of upper strata piston is housed in the piston of upper strata, the prevention lowering means of lower floor's piston is set on the side and urceolus side of lower floor's piston, so can make be arranged on the outer prevention lowering means of urceolus that the space is set is smaller, thereby elevator is set with can saving the space.
In addition, by adopting extension sleeve type, available adjustable height is longer than piston length, by configuration hydraulic actuating cylinder arranged side by side in piston, becomes the high pressure telescopic sleeve pipe type sucking, compares with low pressure type hydraulic actuating cylinder the power fluid amount is reduced.
In addition, owing to be to comprise tooth bar and the mechanical prevention lowering means of the claw that engage with tooth bar, can implement to stop decline reliably.
In addition, be arranged on the upper rack guide device of the tooth bar on the piston of upper strata and the following tooth bar guide device that guiding is arranged on the tooth bar on lower floor's piston,, can stably implement lifting action so piston can not rotate owing to have guiding.And both sides' tooth bar guide formed with regard to essential member owing to using originally, thus need not new member, thereby cheap.
And, because extension sleeve type elevator is set with saving the space, thus even extension sleeve type elevator can be moved, also need not to increase the size of whole melt pit, thus the melt pit lid can be reduced.In addition owing to comparing the length that can reduce piston, so melt pit is shoaled with adjustable height.
In addition, though be to utilize hydraulic actuating cylinder pipe arrangement 17 the be connected in series downward hydraulic actuating cylinder 5 and the driving oil of hydraulic actuating cylinder 6 upwards in the above-described embodiment, also can adopt independently pipe arrangement.In addition, the prevention lowering means of upper strata piston and the prevention lowering means of lower floor's piston lean against configuration privately, but also can be positioned at different positions.
Industrial applicibility
Although above-mentioned embodiment is the explanation that automobile maintenance elevator is carried out, extension sleeve type elevator 1 also can be used for other purposes, the lift that utilizes such as liftings such as being suitable as high-altitude operation vehicle, elevator.
Claims (4)
1. an extension sleeve type elevator is characterized in that,
In the urceolus of upright configuration, contain lower floor's piston of tubular sliding freely, in described lower floor piston, also contain the upper strata piston of tubular sliding freely, in described lower floor piston, contain hydraulic actuating cylinder arranged side by side, described hydraulic actuating cylinder arranged side by side comprises the downward hydraulic actuating cylinder that is arranged side by side and the hydraulic actuating cylinder that makes progress, described downward hydraulic actuating cylinder has the piston rod that utilizes oil pressure to extend downwards, described upwards hydraulic actuating cylinder has the piston rod that utilizes oil pressure upwards to extend
The prevention lowering means of described upper strata piston is set in the piston of described upper strata, the prevention lowering means of described lower floor piston is set in lower floor piston side and described urceolus side,
Utilize described elongation action to lower piston rod, described lower floor piston slides in described urceolus upward, and utilizes described elongation action to upper piston rod, and described upper strata piston slides in described lower floor piston upward, and described elevator is raise.
2. extension sleeve type elevator according to claim 1 is characterized in that,
The prevention lowering means of described upper strata piston comprises: upper rack is arranged on the piston medial surface of described upper strata; And stop the decline claw, be arranged on described hydraulic actuating cylinder arranged side by side top and engage with described upper rack,
The prevention lowering means of described lower floor piston comprises: following tooth bar is arranged on the described lower floor piston side; And stop the decline claw, be configured on the described urceolus sidepiece and and engage with described tooth bar down.
3. extension sleeve type elevator according to claim 1 and 2 is characterized in that,
Described upper rack is guided by the upper rack guide, described upper rack guide depression is arranged on the end of the hydraulic actuating cylinder adapter plate on fixing described hydraulic actuating cylinder arranged side by side top, described tooth bar down is by tooth bar guide guiding down, and described tooth bar guide depression down is arranged on and is arranged on the cylinder sleeve on the described urceolus, lower floor's piston slip usefulness.
4. an automobile maintenance elevator is characterized in that,
In the sunken melt pit that is provided with of work ground fovea superior, dispose any one described extension sleeve type elevator in a plurality of claims 1 to 3, extend synchronously, the plummer that is configured in the described melt pit is raise by making whole described extension sleeve type elevators.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009-129391 | 2009-05-28 | ||
| JP2009129391A JP2010275067A (en) | 2009-05-28 | 2009-05-28 | Telescope type lift and automobile maintenance lift |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101898737A true CN101898737A (en) | 2010-12-01 |
Family
ID=43224727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101729060A Pending CN101898737A (en) | 2009-05-28 | 2009-09-03 | Extension sleeve type elevator and automobile maintenance elevator |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2010275067A (en) |
| KR (1) | KR20100129114A (en) |
| CN (1) | CN101898737A (en) |
| TW (1) | TW201041797A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103738876A (en) * | 2013-12-09 | 2014-04-23 | 太原科技大学 | Stroke-variable hydraulic pushing device |
| CN110803654A (en) * | 2019-11-28 | 2020-02-18 | 衡阳思迈科科技有限公司 | Lifting system for photocuring tray of conductive silver paste |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102758398B (en) * | 2011-04-29 | 2015-06-17 | 深圳中集天达空港设备有限公司 | Lifting device and boarding bridge with the lifting device |
| CN102887134A (en) * | 2012-09-27 | 2013-01-23 | 苏州华电电气股份有限公司 | Electronic supporting leg for communication command car |
| US10858054B2 (en) | 2018-01-31 | 2020-12-08 | Honda Motor Co., Ltd. | Multi-stage shift pack assembly and method |
| KR102268126B1 (en) * | 2020-05-07 | 2021-06-21 | 이광래 | Telescopic-type lift cylinder apparatus |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH065354Y2 (en) * | 1988-02-12 | 1994-02-09 | 日産アルティア株式会社 | Descent prevention device in vehicle maintenance lift |
| JPH0419597U (en) * | 1990-06-07 | 1992-02-19 | ||
| JP2538490Y2 (en) * | 1993-12-28 | 1997-06-18 | 杉安工業株式会社 | Recessed vehicle maintenance lift |
| JPH10297445A (en) * | 1997-04-25 | 1998-11-10 | Banzai Kogyo Kk | Safety device for multi-step lift |
| JP2001316085A (en) * | 2000-05-11 | 2001-11-13 | Banzai Kogyo Kk | Bipost type concentric-shaft multistage lift |
-
2009
- 2009-05-28 JP JP2009129391A patent/JP2010275067A/en active Pending
- 2009-08-10 KR KR1020090073212A patent/KR20100129114A/en not_active Application Discontinuation
- 2009-09-03 CN CN2009101729060A patent/CN101898737A/en active Pending
- 2009-10-20 TW TW098135427A patent/TW201041797A/en unknown
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103738876A (en) * | 2013-12-09 | 2014-04-23 | 太原科技大学 | Stroke-variable hydraulic pushing device |
| CN103738876B (en) * | 2013-12-09 | 2015-10-28 | 太原科技大学 | Become stroke hydraulic push lifting device |
| CN110803654A (en) * | 2019-11-28 | 2020-02-18 | 衡阳思迈科科技有限公司 | Lifting system for photocuring tray of conductive silver paste |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20100129114A (en) | 2010-12-08 |
| JP2010275067A (en) | 2010-12-09 |
| TW201041797A (en) | 2010-12-01 |
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| C06 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20101201 |