NZ733251B - Vehicle with a rotary control box and aerial work platform - Google Patents
Vehicle with a rotary control box and aerial work platformInfo
- Publication number
- NZ733251B NZ733251B NZ733251A NZ73325117A NZ733251B NZ 733251 B NZ733251 B NZ 733251B NZ 733251 A NZ733251 A NZ 733251A NZ 73325117 A NZ73325117 A NZ 73325117A NZ 733251 B NZ733251 B NZ 733251B
- Authority
- NZ
- New Zealand
- Prior art keywords
- control box
- arm
- casing
- aerial work
- work platform
- Prior art date
Links
- 230000005540 biological transmission Effects 0.000 claims description 27
- 230000000875 corresponding Effects 0.000 abstract description 10
- 238000010276 construction Methods 0.000 description 5
- 230000002829 reduced Effects 0.000 description 5
- 230000036961 partial Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010420 art technique Methods 0.000 description 1
- 230000003247 decreasing Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001681 protective Effects 0.000 description 1
- 238000004642 transportation engineering Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/18—Control systems or devices
- B66C13/40—Applications of devices for transmitting control pulses; Applications of remote control devices
- B66C13/44—Electrical transmitters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/52—Details of compartments for driving engines or motors or of operator's stands or cabins
- B66C13/54—Operator's stands or cabins
- B66C13/56—Arrangements of handles or pedals
-
- 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
- B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
- B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
-
- 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
- B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
- B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
- B66F11/044—Working platforms suspended from booms
-
- 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
- B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
- B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
- B66F11/044—Working platforms suspended from booms
- B66F11/046—Working platforms suspended from booms of the telescoping type
-
- 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
- B66F17/006—Safety devices, e.g. for limiting or indicating lifting force for working platforms
-
- 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
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/0759—Details of operating station, e.g. seats, levers, operator platforms, cabin suspension
Abstract
vehicle with an arm-type aerial platform comprising a vehicle frame, a driving system disposed on the vehicle frame, a control box and a locking device; the control box is disposed at a lateral side of the vehicle frame in a rotary manner; and the control box is electrically connected with the driving system; a casing is disposed at a lateral side of a base of the vehicle frame; a turning opening is defined at a lateral side of the casing for turning the control box into and out of the casing; and an edge of the control box is hinged to an upper edge of the turning opening; the control box is configured to be locked by the locking device at a predefined position, a plurality of buttons of the control box are configured to be accessible through an access opening when the control box is locked at the predefined position. This allows the control box to be more conveniently accessed by a user and provides for access to the corresponding controls when the control box is in a stowed position. ving system; a casing is disposed at a lateral side of a base of the vehicle frame; a turning opening is defined at a lateral side of the casing for turning the control box into and out of the casing; and an edge of the control box is hinged to an upper edge of the turning opening; the control box is configured to be locked by the locking device at a predefined position, a plurality of buttons of the control box are configured to be accessible through an access opening when the control box is locked at the predefined position. This allows the control box to be more conveniently accessed by a user and provides for access to the corresponding controls when the control box is in a stowed position.
Description
SPECIFICATION
Vehicle with a rotary control box and aerial work platform
FIELD OF THE INVENTION
The present invention relates to field of engineering
mechanics and more particularly, relates to an engineering
work vehicle, and most particularly, relates to a vehicle
with a rotary control box and aerial work platform.
BACKGROUD OF THE INVENTION
Aerial work platform is an advanced aerial working
mechanical device, and is capable of significantly improving
efficiency, safety, and comfort of operators at height, and
is also capable of reducing labor. Accordingly, it is widely
employed in developed countries. This aerial work platform
is also extensively used in China in many fields such as
urban street lamp maintenance, tree trimming or the like.
With rapid development of Chinese economy, aerial work
platform is increasingly required in many situations such as
engineering construction, industry installation, equipment
repair, workshop maintenance, ship manufacture, electric
power, municipal construction, airport, communications, city
park, and transportation.
A prior art aerial work platform has a control device
disposed on an operation platform or in a cab of a vehicle.
In case of arranging the control device on the operation
platform, control is realized by an operator standing on the
operation platform who manipulates vertical movement and
other action of the operation platform through a control
device. The operator and control device move for example up
and down together with the operation platform. In this
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situation, it is hard for the operator to control the aerial
work platform on the ground. Instead, the operator must
stand on the operation platform to control the entire aerial
work platform, and this result in inconvenience. In latter
case, the operator locates in the cab to manipulate vertical
movement and other actions of the operation platform through
the control device. In this situation, the operator must
stay in the cab which is a closed or semi-closed space. This
will obstruct sight of the operator or form a blind area,
thus causing failure for the operator to accurately
manipulate the aerial work platform. To realize intended
control purpose, the operator may be required to repeat the
same actions upon the aerial work platform for many times.
For example, to raise the operation platform up to a certain
height, the operation platform must be raised or lowered
many times. Furthermore, the operator has to frequently move
his head out of the cab to check visually the height of the
operation platform or another person outside of the cab may
be necessary to coordinate the operator inside the cab. As a
result, this kind of operation platform control is with less
efficiency. Moreover, this kind of control is greatly
restricted and inconvenient.
Of course, with rapid development of the society and
progress of technology, for some arm-type aerial work
platform, a control device is laterally mounted on a turret
of the vehicle such that the operator standing on the ground
is able to perform operations upon the control device.
However, as the control device is fixedly mounted on the
turret and in turn it rotates together with the turret,
following rotation of the turret, the operator must also
adjust his location accordingly to effectively control the
device, thereby resulting in inconvenience for the operator.
Moreover, all above control means feature securing
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the control device to a corresponding location. When the
control device is in an idle condition, it is hard to hide
the control device for protective purpose. This always
exposed control device is easily subject to dust and aging.
Furthermore, when not in use, the control device also
occupies a large area and this causes inconvenience to the
operator and appearance is not good.
Therefore, there is a need for an improved control
device construction and/or mounting means and corresponding
aerial work platform to overcome drawbacks mentioned above.
SUMMARY OF THE INVENTION
An object of the present invention is to address
above problems and provide a vehicle with rotary control box
and aerial work platform. This makes it possible to
manipulate with ease the aerial work platform to perform
corresponding motions by an operator standing on the ground
and, this kind of manipulation is quick and accurate.
To realize this object, an embodiment of the
invention provides a vehicle with rotary control box and
an arm-type aerial work platform, including: a vehicle
frame, a driving system disposed on the vehicle frame,
and a control box. The control box is disposed at a
lateral side of the vehicle frame in a rotary manner. The
control box is electrically connected with the driving
system. A casing is disposed at a lateral side of a base
of the vehicle frame; a turning opening is defined at a
lateral side of the casing for turning the control box
into and out of the casing; and an edge of the control
box is hinged to an upper edge of the turning opening.
Furthermore, a locking device is provided on both of
11279650_1 (GHMatters) P106232.NZ
the control box and casing for locking the control box when
turning into the casing.
Furthermore, a hinging element for hinging the
control box and casing together is provided with a
supporting locking device for supporting and locating the
control box.
Correspondingly, an embodiment of the present
invention further provides an aerial work platform including
a vehicle with rotary control box as mentioned above, a
telescopic transmission component pivotably mounted on the
vehicle, and an operation platform disposed on a distal end
of the telescopic transmission component.
Furthermore, a control device is provided on the
operation platform for being electrically connected with the
driving system of the vehicle.
Compared with prior art techniques, embodiments of
the present invention may bring the following good effects:
In present invention, as the control box is disposed
at a lateral side of the vehicle frame in a rotary manner
and is electrically connected with the driving system, an
operator standing on the ground is able to act upon the
control box such that the aerial work platform can perform
certain motions. As such, manipulation is realized at the
same time the operator monitors motions of the aerial work
platform. For instance, the operator may operate the control
box to raise the operation platform while at the same time
watches height of the operation platform in real time. In
this situation, there is no need for the operator to stand
on the operation platform and control motions of the aerial
work platform through related control device, thereby
bringing convenience and safety of operation. Moreover, it
is not required for the operator to move his head frequently
11279650_1 (GHMatters) P106232.NZ
out of the cab to watch motions of the aerial work platform.
There is also no need for another person out of the cab to
coordinate with the operator inside the cab. Furthermore,
sight of the operator is not restricted and accordingly,
repeatedly control of the aerial work platform to perform
the same motions is avoided, thus convenient, rapid and
accurate control being realized.
Preferably, a casing is disposed at a lateral side
of the base. A turning opening is defined at a lateral side
of the casing for turning the control box into and out of
the casing. An edge of the control box is hinged to a
corresponding edge of the turning opening. Consequently, in
case the aerial work platform is manipulated by an operator
standing on the ground and through the control box, the
control box may be turned out of the casing and then be
operated by the operator to realize certain controls to the
aerial work platform. Therefore, this kind of control is
convenient and safe. When there is no need to operate the
control box by the operator on the ground (that is, when the
control box is not in use), the control box may be turned
into the casing, thereby reducing space occupied by the same
box without causing inconvenience to the operator and not
having adverse influence on appearance of the entire aerial
work platform. This further shields the control box from
dust and collision with the operator or other equipment, and
accordingly, lifespan of the control box is extended, and
maintenance and repair cost is also reduced. In addition, as
the control box is disposed at a lateral side of the base in
a rotary manner, this avoids extremely lower position of the
control box on the lateral side of the base (normally this
is because the base is low). This also avoids vertical
arrangement of a control panel of the control box, which
would otherwise cause inconvenience to the operator.
According to some embodiments of the invention, the control
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box is able to be turned out of the casing when to be used.
At this time, the control panel of the control box is
horizontal or almost horizontal such that the panel is below
the eyes of the operator and can be accessed with ease by
hands of the operator. Therefore, the operator is able to
see various buttons conveniently and then press down these
buttons.
Correspondingly, according to some embodiments of
the invention, a locking device for realizing lock of the
control box when turned into the casing and a supporting
locking device for supporting and locating the control box
are provided. When the control box is turned into the
casing, it will be locked inside the casing by the locking
device manually or automatically. During process of turning
the control box out of the casing, the control box may be
locked by the locking device at a predefined position at
which the operator is able to manipulate the control box
with ease. Therefore, the structure mentioned above
maintains the control box stably at various conditions.
Furthermore, convenience of operation of the aerial work
platform is also improved.
In addition, a control device is provided on the
operation platform for being electrically connected with
the driving system of the vehicle. This facilitates the
operator standing on the operation platform to operate the
aerial work platform through the control device, this
further leading to convenience of operation of the aerial
work platform.
Therefore, embodiments of current invention makes
it possible to manipulate with ease the aerial work platform
to perform corresponding motions by an operator standing on
the ground and, this kind of manipulation is quick and
accurate. In addition, more convenience and human-
11279650_1 (GHMatters) P106232.NZ
friendliness is brought. At the same time, life time of
relevant components of the aerial work platform is extended,
and maintenance and repair cost is further reduced.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 shows a schematic view of an aerial work
platform in accordance with a typical embodiment of the
invention;
Figure 2 shows a partially enlarged view of
portion M of figure 1;
Figure 3 illustrates another view of the aerial work
platform of figure 1;
Figure 4 shows a partially enlarged view of
portion N of figure 3;
Figure 5 shows a schematic view of a telescopic
transmission component of the aerial work platform of
figure 1;
Figure 6 shows a partially enlarged view of
portion A of figure 5;
Figure 7 shows a partially enlarged view of
portion B of figure 5;
Figure 8 shows a view of the telescopic transmission
component of figure 5 in an expanded configuration;
Figure 9 denotes a structural view of internal
major transmission members of the telescopic transmission
component of figure 5, the major transmission members
including a first sprocket wheel, a second sprocket wheel, a
rope-expanding chain, a rope-retracting chain, and a
11279650_1 (GHMatters) P106232.NZ
retractable cylinder;
Figure 10 shows a schematic view of internal major
transmission members of the telescopic transmission
component of figure 5;
Figure 11 shows a schematic view of internal major
transmission members of the telescopic transmission
component of figure 5;
Figure 12 denotes a structural view of the
retractable cylinder of the telescopic transmission
component of figure 5; and
Figure 13 shows a partially enlarged view of
portion C of figure 12.
DETAILED DESCRIPTION OF THE INVENTION
The present invention will be further described below
with reference to accompanied drawings and exemplary
embodiments. Here, identical numerals represent the
identical components. In addition, detailed description of
prior art will be omitted if it is unnecessary for
illustration of the features of the present invention.
Figures 1-13 show a typical embodiment of an aerial
work platform of the present invention. The aerial work
platform incudes a vehicle 1 with a rotary control box, a
telescopic transmission component 2 pivotably installed on
the vehicle 1 and an operation platform 3 connected to a
distal end of the telescopic transmission component 2.
Here, the vehicle 1 includes a vehicle frame 11, a
driving system disposed on the vehicle frame 11, and a
control box 13 electrically connected to the driving system.
The control box 13 is disposed at a lateral side of the
vehicle frame 11 in a rotary manner.
11279650_1 (GHMatters) P106232.NZ
It is noted that the driving system includes a
driving mechanism, a transmission mechanism, a control
system, and a wheel assembly. The control box 13 is also
electrically connected with the control system.
Preferably, a casing 12 is disposed at a lateral
side of a base of the vehicle frame 11. The control box 13
is disposed at a lateral side of the casing 12.
Specifically, a turning opening 122 is defined at a lateral
side of the casing 12 for turning the control box 13 into
and out of the casing 12. An upper edge of control box
13(See orientation of the control box in figures 1-4) is
hinged to an upper edge of the turning opening
122. The height of the control box 13 relative to the ground
is such designed that, when the control box 13 is rotated
out of the casing 12 through the turning opening 122, an
operator standing on the ground will be able to comfortably
get access to the control box 13.
In case the aerial work platform is manipulated by
an operator standing on the ground and through the control
box 13, the control box 13 may be turned out of the casing
12 and then be operated by the operator to realize certain
controls to the aerial work platform. This kind of
manipulation is convenient and safe. When there is no need
to operate the control box 13 by the operator on the ground
(that is, when the control box 13 is not in use), the
control box 13 may be turned into the turning opening 122 of
the casing 12, thereby reducing space occupied by the same
box without causing inconvenience to the operator and not
having adverse influence on appearance of the entire aerial
work platform. This further shields the control box from
dust and collision with the operator or other equipment, and
accordingly, lifespan of the control box is extended, and
11279650_1 (GHMatters) P106232.NZ
maintenance and repair cost is also reduced.
In addition, when the control box 13 is turned into
the casing 12 through the turning opening 122, it will be
locked inside the casing 12 by a locking device 14.
Partial structure of the locking device 14 is disposed on
the control box 13, while corresponding partial structure
thereof is disposed on the casing 12.
When the control box 13 is turned into the casing
12, it will be locked inside the casing 12 by the locking
device 14 manually or automatically.
Furthermore, a hinging element for hinging the
control box 13 and casing 12 together is provided with a
supporting locking device (not shown) for supporting and
locating the control box 13.
During process of turning the control box 13 out of
the casing 12, the control box 13 may be locked by the
locking device at a predefined position at which the
operator is able to manipulate the control box with ease.
In addition, the control box 13 is disposed at a
lateral side of the casing 12. As another embodiment, the
control box 13 may also be directly disposed at a lateral
side of the vehicle frame 11. Preferably, an upper edge of
the control box 13 is hinged to an upper edge of the
turning opening 122. The control box 13 and turning opening
122 may also be hinged together at other locations. For
example, a right edge of the control box 13 may be hinged
to a corresponding right edge of the turning opening 122
(Referring to orientation of figures 1-4).
Preferably, a control device 7 is provided on the
operation platform 3 for being electrically connected with
the driving system of the vehicle 1. Concretely, the control
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device 7 is electrically coupled with a control system of
the driving system. This facilitates the operator on the
operation platform 3 to manipulate the control device 7 such
that the aerial work platform will perform related motions,
thereby helping the operator select different control manner
based on different demand. For example, when the operator
stands on the ground, he may select the control box 13 to
drive the aerial work platform to perform motions. When the
operator is inside the operation platform 3, he can choose
the control device 7 to drive the aerial work platform to
perform motions. This further improves operation convenience
of the aerial work platform.
Reference is made to figures 1-13 illustrating a
typical embodiment of a telescopic transmission component of
the aerial work platform of the invention. The telescopic
transmission component 2 includes a base arm 21, a second
arm 22, a third arm, a telescopic cylinder 24, a rope-
expanding chain 27, and a rope-retracting chain 28.
The second arm 22 is inserted into the base arm 21
and is able to move out of the base arm 21 (See an upper
portion of figure 8). The third arm 23 is inserted into the
second arm 22 and is capable of coming out of an extension
end of the same (See an upper portion of figure 8).
The telescopic cylinder 24 includes a cylinder
barrel 241 secured onto the second arm 22 and a telescopic
rod 242 inserted into the barrel 241. The telescopic rod 242
has a hollow arrangement 247 communicating with a cavity of
the cylinder barrel 241. An oil guiding tube 245 is provided
into the hollow arrangement 247 of the telescopic rod 242,
and the extension end of the telescopic rod 242 is secured
onto the base arm 21 (See a lower portion of figure 10).
Preferably, an end surface of the extension end of the
telescopic rod 242 is fixed to the base arm 21 through a
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mounting plate 8. A connection portion is provided on the
cylinder barrel 241 at a location adjacent to the extension
end of the telescopic rod 242 for securing the barrel 241 to
the second arm 22. The connection portion may in the form of
an axle hole. That is, the cylinder barrel 241 may be
mounted on the second arm 22 by inserting a pin into said
axle hole. Of course, the connection portion of the barrel
241 may also be designed to locate at other positions of the
barrel 241, for example at a middle position
Moreover, a first sprocket wheel 25 is provided on
the telescopic cylinder 24, a second sprocket wheel 26 is
provided on the second arm 22, and the second sprocket wheel
26 is closer to the extension end of the cylinder barrel 241
than does the first sprocket wheel 25. One end of the rope-
expanding chain 27 is attached onto the base arm 21, while
the other end thereof runs around the first sprocket wheel
and then is attached onto the third arm 23. In other
words, the two ends of the rope-expanding chain 27 are both
located below the first sprocket wheel 25(See orientation of
figures). One end of the rope-retracting chain 28 is
attached onto the third arm 23, while the other end thereof
runs around the second sprocket wheel 26 and then is
attached onto the base arm 21. In other words, the two ends
of the rope-retracting chain 28 are both located above the
second sprocket wheel 26(See orientation of figures).
Preferably, the first sprocket wheel 25 is located on a
cylinder head, which cylinder head is located at one end
away from an extension end, of the telescopic cylinder 24.
The second sprocket wheel 26 is located on the second arm 22
at a location adjacent to the extension end of the
telescopic rod 242. By this manner, the first and second
sprocket wheels 25 and 26 are capable of being positioned
above and below the cylinder barrel 241(See orientation of
figures). This ensures stable movement of the cylinder
11279650_1 (GHMatters) P106232.NZ
barrel 241 and accordingly, it also ensures stable rotation
and telescopic motion of relevant components. Of course, the
first and second sprocket wheels 25 and 26 may also be
positioned at other suitable locations. For instance, the
first sprocket wheel 25 may be located at a middle area of
the cylinder barrel 241, and the second sprocket wheel may
be placed on the second arm 22 at a location close to a
middle portion of the cylinder barrel 241.
As shown in figures 9-10, an inner cavity of the
cylinder barrel 241 of the telescopic cylinder 24 is
separated to form a rod chamber 244 and a non-rod chamber
243 by telescopic rod 242. In other words, partial space of
the inner cavity of the barrel 241 overlaps the telescopic
rod 242 and thus forms the rod chamber 244. Partial space of
the inner cavity of the barrel 241 doesn’t overlap the rod
242 and locates at right side (See figure 10) of a distal
end of the telescopic rod 242, and accordingly, forms the
non-rod chamber 243. The hollow arrangement 247 of the
telescopic rod 242 communicates with the rod chamber 244 via
a connection path 246. The hollow arrangement 247 of the rod
242 together with the oil guiding tube 245 inside the
arrangement 247 is communicated with an external oil tube.
Furthermore, one end of the rope-retracting chain 28
is attached onto the third arm 23 by means of a chain
connection member 29, similarly, one end of the rope-
expanding chain 27 is also attached onto the third arm 23 by
means of the chain connection member 29, and the two ends
are located at two sides of the chain connection member 29.
By this manner, motions of the rope-expanding chain 27,
rope-retracting chain 28 and third arm 23 are coordinated
among each other. Alternatively, the rope-expanding chain 27
and rope-retracting chain 28 may be connected to the third
arm 23 with different connective members.
11279650_1 (GHMatters) P106232.NZ
Moreover, a chain detection device is provided on the
rope-expanding chain 27 for real time detecting status of
related chain. When a chain is broken or exceeds a
predefined loose value, the chain detection device will
generate alert signals to guarantee safety of the telescopic
transmission component 2, and further guarantee safety of
operators and other staff. In particular, the chain
detection device may be disposed on the rope-expanding chain
27 at one end thereof where the chain is connected to the
base arm 21.
Preferably, all of the base arm 21, second arm 22
and third arm 23 are of hollow arrangement. It is noted
that these arms are by no means limited to this hollow
arrangement, and in fact they may be of other
constructions.
Furthermore, these hollow arrangements of the base
arm 21, second arm 22 and third arm 23 form a telescopic
cavity into which the telescopic cylinder 24, first sprocket
wheel 25, second sprocket wheel 26, rope-expanding chain 27
and rope-retracting chain 28 are received, thus leading to a
compact structure for the telescopic transmission component
2, and further reducing wear and aging of the components,
thereby extending lifetime. This also reduces repair and
maintenance frequency and makes it more convenient to repair
and maintain the same, thus decreasing related costs. In
addition, to certain extent these components are not exposed
outside and accordingly, risk of operators being injured due
to unintentional collision with the components is also
reduced. Of course, it is also feasible to place the
telescopic cylinder 24, first sprocket wheel 25, second
sprocket wheel 26, rope-expanding chain 27 and rope-
retracting chain 28 outside the telescopic cavity (that is,
place them onto the outer walls of the base arm 21, second
11279650_1 (GHMatters) P106232.NZ
arm 22 and third arm 23).
In a summary, as the telescopic rod 242 is secured
onto the base arm 21, when driven by suitable liquid
medium, the cylinder barrel 241 will move upwardly together
with the second arm 22(See orientation of figures) such
that the second arm 22 will move out of the base arm 21. In
turn, under the traction of the rope-expanding chain 27 and
first sprocket wheel 25, the third arm 23 is pulled to move
out of an upper end of the second arm 22. With continuous
injection of the liquid medium into the cylinder barrel
241, the second arm 22 and third arm 23 will continue to
move toward the upper end until desired travel distance or
maximum predefined distance is reached. During this
movement, the first sprocket wheel functions as a movable
pulley, and in this situation, displacement of the third
arm 23 relative to the base arm 21 is two times as long as
a travel distance of the cylinder barrel 241 (the distance
of the second arm 22 with respect to the base arm 21). In
this case, telescopic distance is certainly extended.
When oil enters the rod chamber 244 of the cylinder
barrel 241 through the hollow arrangement 247 of the
telescopic rod 242, the barrel 241 will drive the second arm
22 to move together downwardly such that the second arm 22
will retract from the upper end of the base arm 21. In turn,
the third arm 23 will retract into the second arm 22 when
driven by the rope-retracting chain 28 and second sprocket
wheel 26. With continuous oil injection into the telescopic
rod 242, the second arm 22 and third arm 23 will
continuously retract towards a low end until a desired
retracting location or complete retracting location is
reached. During this retracting, the second sprocket wheel
26 works as a movable pulley such that the displacement of
the third arm 23 relative to the base arm 21 is two times as
11279650_1 (GHMatters) P106232.NZ
long as the travel distance of the cylinder barrel 241 (that
is, the distance of the second arm 22 relative to the base
arm 21).
Preferably, please refer to figure 1 and other
related figures, the third arm 23 is hinged to the operation
platform 3 by said connecting arm 5. In other words, the
third arm 23 is hinged to connecting arm 5, and connecting
arm 5 is connected with the operation platform 3. The
connecting arm 5 helps the operation platform 3 move further
along a horizontal direction. The base arm 21 is hinged to
the vehicle 1 by the supporting arm 4 which is movably
connected with relevant component of the vehicle 1. In
addition, a luffing cylinder 6 is disposed between the third
arm 23 and connecting arm 5, and another luffing cylinder 6
is disposed between the base arm 21 and supporting arm 4. By
this manner, the third arm 23, connecting arm 5 and luffing
cylinder 6 connected therewith together define a reliable
triangle construction. Similarly, the base arm 21,
supporting arm 4 and luffing cylinder 6 connected therewith
also together define a reliable triangle construction. This
makes sure that the aerial work platform bears more
stability and security. Of course, other functional
component such as that for levelling may be disposed among
the third arm 23, connecting arm 5 and luffing cylinder 6,
and among the base arm 21, supporting arm 4 and luffing
cylinder 6.
When the aerial work platform requires extending its
arms, the second and third arms 22, 23 in the telescopic
transmission component 2 are controlled to extend. At this
time, the operation platform 3 coupled with the telescopic
transmission component will also be extended when driven by
the third arm 23. At this time, relevant luffing cylinder 6,
supporting arm 4 and telescopic connection component 5 are
11279650_1 (GHMatters) P106232.NZ
also controlled to adjust angle or location of relevant arms
until the operation platform 3 moves to a predefined working
location or a maximum extension distance is reached.
Similarly, when the aerial work platform requires
withdrawing its arms, the second and third arms 22, 23 of
the telescopic transmission component 2 are controlled to
retract. At this time, the operation platform 3 coupled with
the telescopic transmission component 2 will also be
retracted when driven by the third arm 23. At this time,
relevant luffing cylinder 6, supporting arm 4 and telescopic
connection component 5 are also controlled to adjust angle
or location of relevant arms until the operation platform 3
moves to a predefined working location or returns to its
original location without extension.
In addition, the supporting arm 4 is connected with
the turret of the vehicle 1, and the same turret is disposed
on the base. The turret may not be provided with other
functional elements.
In summary, according to some embodiments of the
invention, relevant arms are driven by cooperation of the
chain and sprocket. Connections among related components are
simple and accordingly, stable, rapid and accurate
transmission is realized. In addition, the chain has strong
structural strength and extremely less resilient
deformation. Accordingly, the telescopic transmission
component features high stability, accuracy and security.
Therefore, embodiments of current invention makes
it possible to manipulate with ease the aerial work platform
to perform corresponding motions by an operator standing on
the ground and, this kind of manipulation is quick and
accurate. In addition, more convenience and human-
friendliness is brought. At the same time, life time of
11279650_1 (GHMatters) P106232.NZ
relevant components of the aerial work platform is extended,
and maintenance and repair cost is further reduced.
Though various embodiments of the present invention
have been illustrated above, a person of the art will
understand that, variations and improvements made upon the
illustrative embodiments fall within the scope of the
present invention, and the scope of the present invention
is only limited by the accompanying claims and their
equivalents.
11279650_1 (GHMatters) P106232.NZ
Claims (5)
1. A vehicle with a rotary control box and an arm-type aerial work platform, comprising: a vehicle frame, a driving system disposed on the vehicle frame, a control box and a locking device; the control box is disposed at a lateral side of the vehicle frame in a rotary manner; and the control box is electrically connected with the driving system; a casing is disposed at a lateral side of a base of the vehicle frame; a turning opening is defined at a lateral side of the casing for turning the control box into and out of the casing; and an edge of the control box is hinged to an upper edge of the turning opening; the control box is configured to be locked by the locking device at a predefined position, a plurality of buttons of the control box are configured to be accessible through an access opening when the control box is locked at the predefined position.
2. The vehicle with a rotary control box and an arm-type aerial work platform as recited in claim 1, wherein the locking device is provided on both of the control box and casing for locking the control box when turning into the casing.
3. The vehicle with a rotary control box and an arm-type aerial work platform as recited in claim 2, wherein a hinging element for hinging the control box and casing together is 11279650_1 (GHMatters) P106232.NZ provided with a supporting locking device for supporting and locating the control box.
4. An aerial work platform, comprising a vehicle with a rotary control box as recited in any one of claims 1-3, a telescopic transmission component pivotably mounted on the vehicle, and an operation platform disposed on a distal end of the telescopic transmission component.
5. The aerial work platform as recited in claim 4, wherein a control device is provided on the operation platform for being electrically connected with the driving system of the vehicle. 11279650_1 (GHMatters) P106232.NZ
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610718887.7A CN106430015B (en) | 2016-08-24 | 2016-08-24 | Car body and aerial work platform with turnable control cabinet |
CN2016107188877 | 2016-08-24 |
Publications (2)
Publication Number | Publication Date |
---|---|
NZ733251A NZ733251A (en) | 2019-07-26 |
NZ733251B true NZ733251B (en) | 2019-10-30 |
Family
ID=
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