CN202785543U - Overhead working truck and working bucket thereof - Google Patents

Overhead working truck and working bucket thereof Download PDF

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Publication number
CN202785543U
CN202785543U CN 201220374495 CN201220374495U CN202785543U CN 202785543 U CN202785543 U CN 202785543U CN 201220374495 CN201220374495 CN 201220374495 CN 201220374495 U CN201220374495 U CN 201220374495U CN 202785543 U CN202785543 U CN 202785543U
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China
Prior art keywords
skeleton
jib
type support
fixed
sleeve
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Expired - Fee Related
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CN 201220374495
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Chinese (zh)
Inventor
陈贤圣
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Changsha Zoomlion Fire Fighting Machinery Co Ltd
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Changsha Zoomlion Fire Fighting Machinery Co Ltd
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Priority to CN 201220374495 priority Critical patent/CN202785543U/en
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Publication of CN202785543U publication Critical patent/CN202785543U/en
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Abstract

The utility model discloses an overhead working truck which comprises an arm frame and a working bucket. The arm frame comprises a first knuckle arm and a second knuckle arm, wherein one end of the first knuckle arm is hinged to the working bucket, and the other end of the first knuckle arm is hinged to the second knuckle arm. The working bucket comprises a framework and guardrails, wherein the framework is hinged to the first knuckle arm, and the guardrails are arranged around the lateral side of the framework. The guardrail below the arm frame is of a liftable structure when the arm frame is folded or unfolded, can descend under the downward pressure of the arm frame when the arm frame is folded, and can automatically ascend when the arm frame is unfolded. The utility model discloses the working bucket of the overhead working truck. By means of the mode, when the overhead working truck does not work, the layout space of the whole overhead working truck can be saved, and the overall height of the whole overhead working truck can be reduced; and when the overhead working truck works, the heights of the guardrails accord with the height required by the national standard, and safety performance of the working bucket is improved.

Description

A kind of aerial platform and working bucket thereof
Technical field
The utility model relates to technical field of engineering machinery, particularly relates to aerial platform and working bucket thereof.
Background technology
Aerial platform is a kind of staff, machinery and equipment to be lifted to the high-altitude assigned address, is engaged in the specialized equipments such as operation such as installation, maintenance, rescue.The working bucket of aerial platform then is an Important Platform that carries out above these operations.Working bucket is comprised of working bucket skeleton and the guardrail that is fixed on the skeleton.Owing to be to carry out operation in the air at height, the guardrail height of working bucket has directly determined the safety performance of working bucket.
In the prior art, aerial platform is offered breach at the guard rail position of former and later two sides of working bucket, when jib is regained and working bucket bucket body overlapping, but too much do not consider the height problem of working bucket guardrail, cause the guardrail height out of reach GB requirement of working bucket subregion, have certain potential safety hazard.
The utility model content
The technical matters that the utility model mainly solves provides a kind of aerial platform and working bucket thereof, can save the car load arrangement space when the aerial platform off position, reduces the car load height overall; When the high-lift operation car state, guardrail height reaches GB and requires height, improves the safety performance of working bucket.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of aerial platform is provided, comprises: jib and working bucket; Jib comprises first segment arm and second section arm, and wherein, an end of first segment arm is articulated in working bucket, and the other end is articulated in the second section arm; Working bucket comprises skeleton and guardrail, and skeleton is articulated on the first segment arm, and guardrail is compassingly set at the skeleton side; Wherein, but the guardrail of the below of the jib when packing up corresponding to jib is the oscilaltion structure, and guardrail is subject to the downforce of jib and descends when jib is packed up, and when jib launches automatic-ascending.
Wherein, guardrail comprises: at least one expansion link, two fixed links, articulated stand and elastic mechanisms; Expansion link, two fixed links all are horizontally placed on the guardrail top, and two fixed links be arranged in parallel, and expansion link is connected between two fixed links; Two fixed links are fixed respectively in the articulated stand upper end, and the articulated stand lower end is articulated on the skeleton, and the jointed shaft that is articulated on the skeleton is parallel with fixed link; The elastic mechanism lower end is fixed on the skeleton, and the elastic mechanism upper end is connected in articulated stand, so that make expansion link, two fixed links remain on the guardrail top when jib launches; Wherein, pack up and when pressing down fixed link at jib, expansion link, two fixed links around articulated stand on skeleton the hinge-point rotation and descend, the simultaneous retractable bar shrinks.
Wherein, articulated stand comprises two the first L-type supports and two the second L-type supports, and elastic mechanism comprises the first gas spring and the second gas spring; An end of a fixed link is fixed in the upper end of one of them the first L-type support, and lower end and skeleton are hinged, and the other end of same fixed link is fixed in the upper end of another the first L-type support, and lower end and skeleton are hinged; An end of another fixed link is fixed in the upper end of second a L-type support, and lower end and skeleton are hinged, and the other end of same fixed link is fixed in the upper end of another the second L-type support, and lower end and skeleton are hinged; The upper end of the first gas spring is articulated in the first L-type support, and under spread length, be higher than the hinge-point of the first L-type support and skeleton with the hinge-point of the first L-type support, the upper end of the second gas spring is articulated in the second L-type support, and under spread length, be higher than the hinge-point of the second L-type support and skeleton with the hinge-point of the second L-type support.
Wherein, the vertical projection of expansion link is all between the hinge-point of hinge-point, the second L-type support and the skeleton of the first L-type support and skeleton.
Wherein, the second section arm is equipped with wedge in the lower surface that contacts with two fixed links, and the inclined-plane of two wedges is oppositely arranged and is splayed.
Wherein, the end of expansion link is hinged by the end of Step Shaft and two fixed links.
Wherein, the hinged end of expansion link and two fixed links is provided with the first stop gear that prevents that expansion link from deviating from from Step Shaft.
Wherein, expansion link comprises the first sleeve and the second sleeve, and an end of the first sleeve and an end of a fixed link are hinged, the end socket of the other end and the second sleeve, one end of the other end of the second sleeve and another fixed link is hinged, relative sliding between the first sleeve and the second sleeve.
Wherein, be provided with plain bearing between the first sleeve and the second sleeve socket part, and be positioned at the first sleeve and the outer field barrel tip of the second sleeve socket part is provided with the second stop gear that the anti-skidding bearing is deviate from.
For solving the problems of the technologies described above, another technical scheme that the utility model adopts is: a kind of high-lift operation car bucket is provided, comprises: skeleton and guardrail, skeleton are articulated on the jib, and guardrail is compassingly set at the skeleton side; Wherein, but the guardrail of the below of the jib when packing up corresponding to the jib of aerial platform is the oscilaltion structure, and is subject to the downforce of jib and descends when jib is packed up, and when jib launches automatic-ascending.
The beneficial effects of the utility model are: the situation that is different from prior art, the utility model is compassingly set at guardrail the working bucket skeleton side of aerial platform, but the guardrail of the below of the jib when packing up corresponding to jib is the oscilaltion structure, and when jib is packed up, be subject to the downforce of jib and descend, and when jib launches automatic-ascending, when being implemented in the aerial platform off position, save the car load arrangement space, reduce the car load height overall; When the high-lift operation car state, guardrail height reaches GB and requires height, improves the safety performance of working bucket.
Description of drawings
Fig. 1 is the lateral plan of the utility model aerial platform the first embodiment;
Fig. 2 is the birds-eye view of the working bucket guard bar structure of the utility model aerial platform embodiment;
Fig. 3 is two structural representations that the first L-type support is connected with the first fixed link of the utility model aerial platform embodiment;
Fig. 4 is the lateral plan of the first L-type support of the utility model aerial platform embodiment;
Fig. 5 is two structural representations that the second L-type support is connected with the second fixed link of the utility model aerial platform embodiment;
Fig. 6 is the lateral plan of the second L-type support of the utility model aerial platform embodiment;
Fig. 7 is the structural representation that the expansion link of the utility model aerial platform embodiment is connected with the first fixed link;
Fig. 8 is the structural representation that the expansion link of the utility model aerial platform embodiment is connected with the second fixed link;
Fig. 9 is the structural representation of the first sleeve of the utility model aerial platform embodiment;
Figure 10 is the structural representation of the second sleeve of the utility model aerial platform embodiment;
Figure 11 is the first sleeve of the utility model aerial platform embodiment and the structural representation of the second sleeve socket;
Figure 12 is guardrail lateral plan in the raw after the jib of the utility model aerial platform embodiment launches;
Figure 13 is the lateral plan that the jib of the utility model aerial platform embodiment is packed up time extruding guardrail process;
Figure 14 be the jib of the utility model aerial platform embodiment when packing up guardrail be in by the lateral plan of pressure condition.
The specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
See also Fig. 1,12, Fig. 1 is the lateral plan of the utility model aerial platform the first embodiment, and Figure 12 is guardrail lateral plan in the raw after the jib of the utility model aerial platform embodiment launches.
The utility model the first embodiment comprises: car body (not shown), jib (10,11) and working bucket 20.Jib (10,11) comprises first segment arm 10 and second section arm 11, and an end of first segment arm 10 is articulated in working bucket 20, and the other end of first segment arm 10 is articulated in an end of second section arm 11; Aerial platform further comprises the telescopic jib (not shown), and the other end of second section arm 11 is articulated in an end of telescopic jib, and the other end of telescopic jib is articulated in car body.
Working bucket 20 comprises skeleton 21 and guardrail (not indicating), and skeleton 21 is articulated on the first segment arm 10, and guardrail is compassingly set at the side of skeleton 21.Wherein, but the guardrail of second section arm 11 belows when packing up corresponding to second section arm 11 is the oscilaltion structure, and when second section arm 11 is packed up, be subject to the downforce of second section arm 11 and descend, so that whole guardrail mechanism is folded to working bucket 20 inside downwards, thereby the saving space makes the car load compact in design; But and when second section arm 11 launches the guardrail automatic-ascending, the desired height that is up to state standards improves the safety performance of working bucket 20.
See also Fig. 2,12, Fig. 2 is the birds-eye view of the working bucket guard bar structure of the utility model aerial platform embodiment.But the guardrail of oscilaltion structure comprises: at least one expansion link 220, the first fixed link 221, the second fixed link 222, articulated stand and elastic mechanism (227,228).In the present embodiment, the quantity of expansion link 220 is chosen for one, in other embodiments, the quantity of expansion link 220 can be chosen for other numbers, such as being chosen for two, can set up another expansion link 220 at side corresponding to working bucket 20 breach, but equally also can realize well the oscilaltion effect of the utility model guard bar structure, not make too many restrictions herein.In the present embodiment, articulated stand comprises the first L-type support (223,224) and the second L-type support (225,226).
Expansion link 220, the first fixed link 221, the second fixed link 222 all are horizontally placed on the guardrail top, and the first fixed link 221 and the second fixed link 222 be arranged in parallel, and expansion link 220 is connected between the first fixed link 221 and the second fixed link 222.The first fixed link 221 and the second fixed link 222 are fixed respectively in the first L-type support (223,224) and the second L-type support (225,226) upper end, and the lower end is articulated on the skeleton 21.It should be noted that the jointed shaft and the first fixed link 221 parallel (certainly also being parallel to the second fixed link 222) that are articulated on the skeleton 21; Elastic construction (227,228) lower end is fixed on the skeleton 21, the upper end is connected in the first L-type support (223,224) and the second L-type support (225,226), elastic mechanism (227 when second section arm 11 launches, 228) make expansion link 220, the first fixed link 221, the second fixed link 222 remains on the guardrail top, pack up at second section arm 11 and press down the first fixed link 221, during the second fixed link 222, expansion link 220, the first fixed link 221, the second fixed link 222 is around the first L-type support (223,224) and the second L-type support (225,226) hinge-point on skeleton 21 rotates and descends, simultaneous retractable bar 220 carries out contractile motion, it should be noted that the first fixed link 221, the second fixed link 222 is parallel to the first fixed link 221 around the axis of the hinge-point of articulated stand on skeleton 21.
See also Fig. 2,3,4, Fig. 3 is the structural representation that two first L-type supports (223,224) of the utility model aerial platform embodiment are connected with the first fixed link 221, Fig. 4 is the lateral plan of the first L-type support (223,224) of the utility model aerial platform embodiment, Fig. 5 is the structural representation that two second L-type supports (225,226) of the utility model aerial platform embodiment are connected with the second fixed link 222, and Fig. 6 is the lateral plan of the second L-type support (225,226) of the utility model aerial platform embodiment.Articulated stand comprises two the first L-type supports (223,224) and two the second L-type supports (225,226), an end of the first fixed link 221 is fixed in the upper end of one of them the first L-type support 223, lower end and the skeleton 21 of first a L-type support 223 are hinged, the other end of the first fixed link 221 is fixed in the upper end of another the first L-type support 224, and lower end and the skeleton 21 of another the first L-type support 224 are hinged; The second fixed link 222 1 ends are fixed in the upper end of second a L-type support 225, and lower end and skeleton 21 are hinged, and the other end of the second fixed link 222 is fixed in the upper end of another the second L-type support 226, and lower end and skeleton 21 are hinged.Two the first L-type supports (223,224) and the first fixed link 221 structure that is formed in one, similarly, two the second L-type supports (225,226) and the second fixed link 222 structure that also is formed in one.Wherein, two the first L-type supports (223,224), two the second L-type supports (225,226) all are provided with coaxial hole in the lower end, and then hinged by hinge and skeleton 21 realizations, and the quantity of hinge is not restricted herein.
See also Fig. 7,8, Fig. 7 is the structural representation that the expansion link 220 of the utility model aerial platform embodiment is connected with the first fixed link 221, and Fig. 8 is the structural representation that the expansion link 220 of the utility model aerial platform embodiment is connected with the second fixed link 222.The end of the first fixed link 221, the second fixed link 222 respectively is equipped with a Step Shaft 227, can be respectively carry out hingedly with expansion link 220 both ends by Step Shaft 227, reach the effect that expansion link 220 can freely rotate with respect to the first fixed link 221, the second fixed link 222.In other embodiments, expansion link 220 two ends also can be fixed on the first fixed link 221, the second fixed link 222, form integrated formed structure, above-mentioned integrated formed structure further is articulated on two the first L-type supports (223,224), two the second L-type supports (225,226), but also can realize the purpose of guardrail oscilaltion.In order to slow down friction, can consider to set up plain bearing 228 or other forms of bearing in Step Shaft 227 and expansion link 220 junctions.Simultaneously, be provided with the first position limiting structure 229 at the end of Step Shaft 227, can effectively prevent expansion link 220 landing from the Step Shaft 227, strengthen the safety performance of mechanism.In the present embodiment, the first position limiting structure 229 is chosen for block, and available screw is connected to the end of Step Shaft 227, and in other embodiments, the first position limiting structure 229 is replaceable to be the position limiting structures such as draw-in groove, back-up ring.
It should be noted that, the vertical projection of expansion link 220 is all between the hinge-point of hinge-point, the second L-type support 225 and the skeleton 21 of the first L-type support 223 and skeleton 21, so that when second section arm 11 is packed up and is pressed down the first fixed link 221, the second fixed link 222, expansion link 220 shrinks and descends, and the first fixed link 221, the second fixed link 222 all around the first L-type support (223,224) and the second L-type support (225,226) on skeleton 21 the hinge-point rotation and descend and relative motion and close to each other.Otherwise, if the connecting line segment between the hinge-point of the hinge-point of the first L-type support 223 and skeleton 21 and the second L-type support 225 and skeleton 21 is between the vertical projection of expansion link 220, then so that when second section arm 11 is packed up and is pressed down the first fixed link 221, the second fixed link 222, expansion link 220 elongations also descend, and the first fixed link 221, the second fixed link 222 all around the first L-type support (223,224) and the second L-type support (225,226) on skeleton 21 the hinge-point rotation and descend, and opposing motion and mutually away from.
Please continue to consult Fig. 1, elastic construction (227,228) comprise the first gas spring 227 and the second gas spring 228, the upper end of the first gas spring 227 is articulated in the first L-type support 223, and when the first gas spring 227 is in spread length, be higher than the hinge-point position of the first L-type support 223 and skeleton 21 with the hinge-point position of the first L-type support 223, the upper end of the second gas spring 228 is articulated in the second L-type support 225, and when the second gas spring 228 is in spread length, be higher than the hinge-point position of the second L-type support 225 and skeleton 21 with the hinge-point position of the second L-type support 225.In other embodiments, the upper end of the first gas spring 227, the second gas spring 228 also can be selected to realize being connected with the first L-type support 223, the second L-type support 225 by fixing mode; Gas spring is also replaceable to be the spring of other kinds such as extension spring, does not make too many restrictions herein.
See also Fig. 9,10,11, Fig. 9 is the structural representation of the first sleeve 2201 of the utility model aerial platform embodiment, Figure 10 is the structural representation of the second sleeve 2202 of the utility model aerial platform embodiment, and Figure 11 is the first sleeve 2201 of the utility model aerial platform embodiment and the structural representation of the second sleeve 2202 sockets.Expansion link 220 comprises the first sleeve 2201, the second sleeve 2202, one end of one end of the first sleeve 2201 and the first fixed link (not shown) is hinged, the one end socket of the other end and the second sleeve 2202, one end of the other end of the second sleeve 2202 and the second fixed link (not shown) is hinged, but relative sliding between the first sleeve 2201 and the second sleeve 2202.In order to slow down friction, can between the first sleeve 2201 and the second sleeve 2202 socket part, plain bearing 2203 be set, so that the slip between the first sleeve 2201, the second sleeve 2202 is more smooth, increase the service life of mechanism; Simultaneously, at the first sleeve 2201 and the outer field barrel tip threading of the second sleeve 2202 socket part, threaded second position limiting structure 2204 is set, effectively anti-skidding bearing 2203 comes off, in the present embodiment, the second position limiting structure 2204 is chosen for baffle ring, and threaded baffle ring is screwed on the second sleeve 2202, in other embodiments, the second position limiting structure 2204 also can be chosen for the other forms of position limiting structures such as back-up ring.
See also Figure 12, Figure 12 is guardrail lateral plan in the raw after the jib (10,11) of the utility model aerial platform embodiment launches.Guardrail mechanism integral body can link, when aerial platform is in running order, the first gas spring 227, the second gas spring 228 no longer is subject to the downforce of second section arm 11, this moment the first gas spring 227, the second gas spring 228 is respectively to hinged the first L-type support 223 thereon, the second L-type support 225 has application force upwards, and then drive the first fixed link 221, the second fixed link 222, the first sleeve 2201, the second sleeve 2202 upward movements, until the first gas spring 227, the second gas spring 228 returns to spread length, this moment the first fixed link 221, the second fixed link 222, the first sleeve 2201, the second sleeve 2202 remains on the guardrail top, increase the height of working bucket, improve the safety performance of working bucket.
See also Figure 13,14, Figure 13 is that the jib (10,11) of the utility model aerial platform embodiment pushes the lateral plan of guardrail process when packing up, Figure 14 be the jib (10,11) of the utility model aerial platform embodiment when packing up guardrail be in by the lateral plan of pressure condition.Second section arm 11 is equipped with wedge (101,102) in the lower surface that contacts with the first fixed link 221, the second fixed link 222, and the inclined-plane of two wedges (101,102) is oppositely arranged and is splayed.When second section arm 11 is packed up, the second fixed link 222 parts that its top faces when at first pushing the second gas spring 228 and be in spread length near the first wedge 101 of the second L-type support 225 1 sides, this moment the second fixed link 222, the second L-type support 225, the second sleeve 2202 around the second L-type support 225 on skeleton 21 the hinge-point rotation and descend, the first sleeve 2201, the second sleeve 2202 shrink simultaneously; Then when second section arm 11 falls back near the first L-type support 223 1 side, the first fixed link 221 parts that its top faced when the second wedge 102 extruding the first gas spring 227 on its side second section arm 11 was in spread length, this moment the first fixed link 221, the first L-type support 223, the first sleeve 2201 around the first L-type support 223 on skeleton 21 the hinge-point rotation and descend, the first sleeve 2201, the second sleeve 2202 shrink simultaneously; Until last the first fixed link 221 and the second fixed link 222 are in the horizontal parallel position, jib (10,11) extruding guardrail process finishes, and this moment, whole guardrail mechanism was folded to working bucket inside downwards, thereby saved the space.In the present embodiment, wedge (101,102) is chosen for nylon block, in other embodiments, also can be chosen for the wedge of other materials, does not make too many restrictions herein.
By the way, the utility model is compassingly set at guardrail the working bucket skeleton side of aerial platform, but the guardrail of the below of the jib when packing up corresponding to jib is the oscilaltion structure, and when jib is packed up, be subject to the downforce of jib and descend, and when jib launches automatic-ascending, when being implemented in the aerial platform off position, save the car load arrangement space, reduce the car load height overall; When the high-lift operation car state, guardrail height reaches GB and requires height, improves the safety performance of working bucket.
The utility model also provides a kind of working bucket of aerial platform, and this working bucket can be such as the working bucket in aforementioned each embodiment, comprises skeleton and guardrail, and skeleton is articulated on the jib, and guardrail is compassingly set at the skeleton side; Wherein, but the guardrail of the below of the jib when packing up corresponding to the jib of aerial platform is the oscilaltion structure, and is subject to the downforce of jib and descends when jib is packed up, and when jib launches automatic-ascending.When the aerial platform off position, save the car load arrangement space, reduce the car load height overall; When the high-lift operation car state, guardrail height reaches GB and requires height, improves the safety performance of working bucket.
The above only is embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model specification sheets and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.

Claims (10)

1. an aerial platform is characterized in that, comprising:
Jib and working bucket;
Described jib comprises first segment arm and second section arm, and wherein, an end of described first segment arm is articulated in working bucket, and the other end is articulated in described second section arm;
Described working bucket comprises skeleton and guardrail, and described skeleton is articulated on the first segment arm, and described guardrail is compassingly set at the skeleton side;
Wherein, but the guardrail of the below of the jib when packing up corresponding to described jib is the oscilaltion structure, and described guardrail is subject to the downforce of jib and descends when described jib is packed up, and when described jib launches automatic-ascending.
2. aerial platform according to claim 1 is characterized in that,
Described guardrail comprises:
At least one expansion link, two fixed links, articulated stand and elastic mechanisms;
Described expansion link, two fixed links all are horizontally placed on the guardrail top, and described two fixed links be arranged in parallel, and described expansion link is connected between two fixed links;
Two fixed links are fixed respectively in described articulated stand upper end, and described articulated stand lower end is articulated on the skeleton, and the described jointed shaft that is articulated on the skeleton is parallel with fixed link;
Described elastic mechanism lower end is fixed on the skeleton, and described elastic mechanism upper end is connected in articulated stand, so that make expansion link, two fixed links remain on the guardrail top when described jib launches;
Wherein, pack up and when pressing down fixed link at described jib, described expansion link, two fixed links around articulated stand on skeleton the hinge-point rotation and descend, simultaneously described expansion link shrinks.
3. aerial platform according to claim 2 is characterized in that,
Described articulated stand comprises two the first L-type supports and two the second L-type supports, and described elastic mechanism comprises the first gas spring and the second gas spring;
An end of a fixed link is fixed in the upper end of one of them described the first L-type support, and lower end and skeleton are hinged, and the other end of same fixed link is fixed in the upper end of another described the first L-type support, and lower end and skeleton are hinged;
An end of another fixed link is fixed in the upper end of described second a L-type support, and lower end and skeleton are hinged, and the other end of same fixed link is fixed in the upper end of another described the second L-type support, and lower end and skeleton are hinged;
The upper end of described the first gas spring is articulated in the first L-type support, and under spread length, be higher than the hinge-point of the first L-type support and skeleton with the hinge-point of described the first L-type support, the upper end of described the second gas spring is articulated in the second L-type support, and under spread length, be higher than the hinge-point of the second L-type support and skeleton with the hinge-point of described the second L-type support.
4. aerial platform according to claim 3 is characterized in that,
Vertical projection on the vertical projection of described the first L-type support upper end and the second L-type support is all between the vertical projection of the hinge-point of vertical projection, same the second L-type support lower end and the skeleton of the hinge-point of same the first L-type support lower end and skeleton.
5. aerial platform according to claim 4 is characterized in that,
Described second section arm is equipped with wedge in the lower surface that contacts with two fixed links, and the inclined-plane of two described wedges is oppositely arranged and is splayed.
6. according to claim 2 to 5 each described aerial platforms, it is characterized in that,
The both ends of described expansion link are hinged by the end of Step Shaft and two fixed links respectively.
7. aerial platform according to claim 6 is characterized in that,
Described expansion link is provided with the first stop gear that prevents that expansion link from deviating from from Step Shaft with the hinged end of two fixed links respectively.
8. according to claim 1 to 5 each described aerial platforms, it is characterized in that,
Described expansion link comprises the first sleeve and the second sleeve, one end of described the first sleeve and an end of a fixed link are hinged, the one end socket of the other end and the second sleeve, an end of the other end of described the second sleeve and another fixed link is hinged, relative sliding between described the first sleeve and the second sleeve.
9. aerial platform according to claim 8 is characterized in that,
Be provided with plain bearing between described the first sleeve and the second sleeve socket part, and be positioned at described the first sleeve and the outer field barrel tip of the second sleeve socket part is provided with the second stop gear that the anti-skidding bearing is deviate from.
10. the working bucket of an aerial platform is characterized in that, comprising:
Skeleton and guardrail, described skeleton is articulated on the jib, and described guardrail is compassingly set at the skeleton side;
Wherein, but the guardrail of the below of the jib when packing up corresponding to the jib of described aerial platform is the oscilaltion structure, and is subject to the downforce of jib and descends when described jib is packed up, and when described jib launches automatic-ascending.
CN 201220374495 2012-07-30 2012-07-30 Overhead working truck and working bucket thereof Expired - Fee Related CN202785543U (en)

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Application Number Priority Date Filing Date Title
CN 201220374495 CN202785543U (en) 2012-07-30 2012-07-30 Overhead working truck and working bucket thereof

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Application Number Priority Date Filing Date Title
CN 201220374495 CN202785543U (en) 2012-07-30 2012-07-30 Overhead working truck and working bucket thereof

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Publication Number Publication Date
CN202785543U true CN202785543U (en) 2013-03-13

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021092157A1 (en) * 2019-11-07 2021-05-14 Oshkosh Corporation Foldable rail assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021092157A1 (en) * 2019-11-07 2021-05-14 Oshkosh Corporation Foldable rail assembly

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