CN109542016A - Extend terraced structure, working bucket assembly and its control method and fire fighting truck - Google Patents
Extend terraced structure, working bucket assembly and its control method and fire fighting truck Download PDFInfo
- Publication number
- CN109542016A CN109542016A CN201811511529.4A CN201811511529A CN109542016A CN 109542016 A CN109542016 A CN 109542016A CN 201811511529 A CN201811511529 A CN 201811511529A CN 109542016 A CN109542016 A CN 109542016A
- Authority
- CN
- China
- Prior art keywords
- terraced
- extension
- working bucket
- driving device
- extension ladder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C27/00—Fire-fighting land vehicles
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/21—Pc I-O input output
- G05B2219/21063—Bus, I-O connected to a bus
Abstract
The present invention relates to engineering machinery fields, disclose extension ladder structure, working bucket assembly and its control method and fire fighting truck of a kind of working bucket.The terraced structure of the extension includes: to extend terraced (2), and described one end for extending terraced (2) can be articulated with working bucket, and can rotate relative to the working bucket to switch in reception position and using between position；Driving device (5), the driving device (5) can drive the extension ladder rotation；And locking device (6), when the extension terraced (2) is in the reception position, it is terraced (2) that the locking device (6) can lock the extension.The extension ladder structure of working bucket provided by the present invention when in use will extension ladder turned to by driving device can normal use using position, when not in use, extension ladder is turned to reception position by driving device to lock by locking device, it is compact-sized, easy to use.
Description
Technical field
The present invention relates to engineering machinery fields, and in particular, to a kind of extension ladder structure of working bucket, working bucket assembly and
Its control method and fire fighting truck.
Background technique
Fire fighting truck is when carrying out rescue work or fire-fighting operation, it is often necessary to utilize cantilever crane or the working bucket of ladder end
Staff and relevant device (being usually engaged in the special equipment of the operations such as high-altitude fire fighting and rescue, installation and repairing) lifting is supreme
Empty designated position, or personnel's search and rescue are carried out in river or the intermediate zone at low-lying place.Rescue ladder in working bucket for realizing
Trapped person or equipment enter and leave working bucket to emergency place, to carry out rescue work.
But existing rescue ladder is usually staff's manual operation, safety and reliability is lower, and extends and go to work
It struggles against outside, is easy in working bucket moving process to generate interference with barrier, especially for the rescue site of operating condition complexity.
Thus, it is desirable to have a kind of device can overcome or at least mitigate the drawbacks described above of the prior art.
Summary of the invention
The object of the present invention is to provide a kind of extension ladder structure of working bucket, the extension ladder structure of the working bucket uses letter
Just, compact-sized.
To achieve the goals above, the present invention provides a kind of extension ladder structure of working bucket, and the terraced structure of the extension includes:
Extension ladder, one end of the extension ladder can be articulated with working bucket, and can rotate relative to the working bucket in storage position
It sets and switches using between position；Driving device, the driving device can drive the extension ladder rotation；And locking dress
It sets, when the extension ladder is in the reception position, the locking device can lock the extension ladder.
Preferably, the locking device includes spring catch, is formed with arrangement corresponding with the spring catch on the extension ladder
Pin hole.
Preferably, the terraced structure of the extension includes limiting buffer seat, and the limiting buffer seat can limit the extension ladder
It is rotated between the reception position and the use device；And/or the other end of the extension ladder is formed with U-shaped mounting rack,
The U-shaped mounting rack is equipped with idler wheel.
Preferably, the driving device includes hydraulic cylinder, and the fixing end of the hydraulic cylinder can be installed on the working bucket,
The movable end of the hydraulic cylinder is installed on the extension ladder.
Preferably, the extension ladder includes spaced apart first vertical bar and the second vertical bar and connection first vertical bar
With multiple cross bars of second vertical bar, wherein first vertical bar and second vertical bar are formed as L-shaped structure, the work
Moved end is installed on the corner location of the L-shaped structure, and the depressed section of the L-shaped structure is towards the working bucket.
According to another aspect of the present invention, a kind of working bucket assembly is provided, the working bucket assembly includes: working bucket,
The working bucket includes pedestal and the shielded frame around pedestal arrangement, is formed through opening on the shielded frame；
And according to extension ladder structure described above, the extension ladder passes through opening arrangement corresponding to described, and is articulated with the work
It struggles against, the other end of the extension ladder is provided with pressure sensing cells；And control unit, described control unit can be according to institutes
The pressure signal for stating pressure sensing cells controls the driving device.
Preferably, when the pressure signal reaches first predetermined value, described control unit determines that the extension ladder reaches
Described to use position, described control unit issues locking signal to lock the driving device；And/or described control unit includes
It is set to the control panel of the working bucket, there is expansion button on the control panel and withdraws button, unlock button,
The button that unlocks described in triggering can release the locking of the driving device.
Preferably, in the reception position, the terraced masking of the extension is described by opening, described described using position
Pass through opening described in extension ladder conducting.
Preferably, the periphery by opening is formed with reinforcing frame, the driving device and locking device installation
In the reinforcing frame；And/or the pivot axis of the extension ladder corresponds to the bottom of the reinforcing frame.
According to a further aspect of the invention, a kind of fire fighting truck is provided, the fire fighting truck includes according to work described above
Make bucket assembly.
According to a further aspect of the invention, a kind of control method of working bucket assembly is provided,
When the extension ladder needs to be unfolded the extension ladder in the reception position:
The first step releases the locking of the locking device；
Second step, operation described control unit is so that described control unit starts the driving device, the driving dress
Set the driving extension ladder rotation；
Third step, when the pressure signal that the pressure sensing cells issue reaches first predetermined value, the extension ladder turns
It moves to described using position, described control unit locks the driving device,
When the extension ladder needs to withdraw the extension ladder in the use position:
The first step operates described control unit to release the locking of the driving device, described in the driving device driving
Extension ladder rotation；
Second step, when buffing pad limit is limited when the extension ladder turns to the reception position to be rotated further by,
Described control unit controls the driving device and stops driving；
Third step, the locking device lock the extension ladder.
Through the above technical solutions, the terraced structure of the extension of working bucket provided by the present invention can extend the rescue of working bucket
Range, and by extension ladder convenient for entering and leaving working bucket to rescue personnel or equipment, extension ladder is passed through into driving dress when in use
Set turn to using position can normal use extension ladder is turned to reception position by driving device and passed through when not in use
Locking device locking, it is compact-sized, easy to use.
Other features and advantages of the present invention will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
The drawings are intended to provide a further understanding of the invention, and constitutes part of specification, with following tool
Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is a kind of schematic diagram of the working bucket assembly of embodiment according to the present invention, wherein extension ladder is in use
State；
Fig. 2 is the expansion process schematic of the extension ladder of working bucket assembly shown in FIG. 1；
Fig. 3 is the schematic diagram of working bucket assembly shown in FIG. 1, wherein extension ladder is in receiving state；
Fig. 4 is the side view of working bucket assembly shown in Fig. 3；
Fig. 5 is the flow chart that control unit controls driving device according to the pressure signal of pressure sensing cells.
Description of symbols
1- working bucket, 11- pedestal, 12- shielded frame, 13- reinforcing frame, 14- are erected by opening, 2- extension ladder, 21- first
Bar, the second vertical bar of 22-, 23- cross bar, 24- hydraulic cylinder mounting base, 25-U type mounting rack, 3- cantilever crane, 4- idler wheel, 5- driving device,
6- locking device, 7- limiting buffer seat.
Specific embodiment
Below in conjunction with attached drawing, detailed description of the preferred embodiments.It should be understood that this place is retouched
The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
According to an aspect of the present invention, a kind of extension ladder structure of working bucket, referring to Fig. 1 and Fig. 3, the extension are provided
Terraced structure includes: extension ladder 2, and one end of extension ladder 2 can be articulated with working bucket, and can be rotated relative to the working bucket with
Switch in reception position and using between position；Driving device 5, driving device 5 can drive the extension ladder rotation；And lock
Determine device 6, when extension ladder 2 is in the reception position, locking device 6 can lock extension ladder 2.
The terraced structure of the extension of above-mentioned working bucket can extend the rescue range of working bucket, and by extension ladder convenient for wait rescue
It helps personnel or equipment enters and leaves working bucket, turning to extension ladder 2 by driving device 5 can normally be made when in use using position
With when not in use, extension ladder 2 by driving device 5 being turned to reception position by the locking of locking device 6, structure is tight
It gathers, is easy to use.
The structure of locking device 6 can make appropriate choice according to actual needs, for example, locking device 6 includes phase interworking
The card slot and fixture block or locking device 6 of conjunction include electromagnetic adsorption part.Preferably, locking device 6 includes spring catch, extension ladder 2
On be formed with the pin hole of arrangement corresponding with the spring catch, pin and pin hole cooperation locking extension ladder 2 are reliable and stable, and structure letter
Single, at low cost, required arrangement space is small.The spring of the spring catch can apply to pin is maintained at latched position or release position
The elastic force set, user can make appropriate choice according to actual needs, and preferably spring is maintained at locking to pin application
The elastic force of position overcomes spring to spring catch force when needing to be unfolded extension ladder 2 to guarantee the reliability of locking device 6
Elastic force.
Preferably, referring to Fig. 3 and Fig. 4, the terraced structure of the extension includes limiting buffer seat 7, and limiting buffer seat 7 can limit
Extension ladder 2 rotates between the reception position and the use device, and extension ladder 2 is avoided to go to working bucket 1 when withdrawing
It is internal.The position of limiting buffer seat 7 can make appropriate choice according to the design needs, in the shown embodiment, limiting buffer
Seat 7 is set to reinforcing frame 13, is may also set up in case of need in extension ladder 2.In the shown embodiment, only setting avoids
Extension ladder 2 goes to the limiting buffer seat 7 inside working bucket 1, the case where needing, may also set up and extension ladder 2 is avoided to open transition
Limiting buffer seat 7.
Preferably, the other end of extension ladder 2 is formed with U-shaped mounting rack 25, and U-shaped mounting rack 25 is equipped with idler wheel 4, convenient for adjusting
The position of whole extension ladder 2, reduces the moving resistance of extension ladder 2.
The type of driving device can make appropriate choice according to actual needs, extension ladder 2 can be driven to rotate, example
Such as, motor driven, air pressure driving etc..Preferably, the driving device includes hydraulic cylinder, and the fixing end of the hydraulic cylinder can pacify
Loaded on the working bucket, the movable end of the hydraulic cylinder is installed on extension ladder 2, and Driven by Hydraulic Cylinder is stable, reliable, small in size, weight
Amount is light, and speed-regulating range width, speed control method multiplicity, and user can rotate extension ladder as needed with any suitable speed
2, and extension ladder 2 can be locked in any suitable angle by hydraulic cylinder locking (so that hydraulic cylinder power-off), it is applied widely,
It is easy to use.Referring to fig. 2, terraced 2 being rotated by hydraulic cylinder are extended, extension ladder, location A or the B location that dotted line is drawn
Hydraulic cylinder is locked when needing using extension ladder 2.Also, hydraulic cylinder and locking device 6 can realize the two-bolt lock to extension ladder 2
It is fixed, it is more reliable and more stable.
Preferably, extension ladder 2 includes spaced apart first vertical bar 21 and the second vertical bar 22 and the first vertical bar 21 of connection
With multiple cross bars 23 of the second vertical bar 22, wherein the first vertical bar 21 and the second vertical bar 22 are formed as L-shaped structure, the movable end
It is installed on the corner location of the L-shaped structure, the depressed section of the L-shaped structure is towards working bucket 1.The first of L-shaped structure is perpendicular
Bar 21 and the second vertical bar 22 avoid interfering with working bucket 1 during rotation convenient for the rotation of extension ladder 2, and are convenient for liquid
The driving and arrangement of cylinder pressure can reserve arrangement space for hydraulic cylinder, rotate convenient for its driving extension ladder 2.
According to another aspect of the present invention, a kind of working bucket assembly is provided, referring to Fig. 1 and Fig. 3, the working bucket assembly
It include: working bucket 1, working bucket 1 includes pedestal 11 and the shielded frame 12 around the arrangement of pedestal 11, is formed on shielded frame 12
By opening 14, so that rescue personnel, equipment enter and leave；And according to extension ladder structure described above, extension ladder 2 corresponds to logical
14 arrangement of opening is crossed, and is articulated with working bucket 2, the other end of extension ladder 2 is provided with pressure sensing cells；And control unit,
Described control unit can control driving device 5 according to the pressure signal of the pressure sensing cells.
Terraced 2 control units of the extension of above-mentioned working bucket assembly can judge automatically expansion according to the pressure signal of pressure sensing cells
Whether exhibition ladder 2 is reliable and stable to be in place.The type of the pressure sensing cells can carry out choosing appropriate according to actual needs
It selects, preferably pressure sensor.
Preferably, Fig. 5 is participated in, when the pressure signal reaches first predetermined value, described control unit determines extension ladder 2
It reaches described using position, can reliably place extension ladder 2, described control unit issues locking signal to lock driving device
5, if pressure signal is not up to first predetermined value, then driving device 5 continues to rotate extension ladder 2 until reliable place.Described
The size of one predetermined value can make appropriate choice according to the actual situation, can ensure that reliable place extends ladder.
Pressure sensor is mountable to any suitable position of the other end of extension ladder 2, when the other end of extension ladder 2 is set
When being equipped with idler wheel 4, pressure sensor can be directly arranged on idler wheel 4, and when idler wheel 4 contacts rescue position, pressure sensor is
Pressure signal is sent to control unit.
Preferably, described control unit includes the control panel for being set to the working bucket 1, is had on the control panel
Button is unfolded and withdraws button, unlock button, and the button that unlocks described in triggering can release the locking of driving device 5,
Rescue personnel can control the state of extension ladder 2 in working bucket 1, easy to use, when needing using extension ladder 2, triggering expansion
Button, can Automatic-expanding extension ladder 2, using complete trigger withdraw button can automatically retract extension ladder 2.
Preferably, in the reception position, 2 masking of extension ladder uses position by opening 14, described, and extension ladder 2 is led
Opening 14 is crossed all, and extension ladder 2 can be used as the door by opening 14 simultaneously, multiple use be integrated, so that working bucket assembly structure
It is compact, it is easy to use,.
Preferably, reinforcing frame 13 is formed with by the periphery of opening 14, to improve the intensity of shielded frame 12, driving device
5 and locking device 6 be installed on reinforcing frame 13, neighbouring extension ladder 2 is arranged, convenient for the driving of extension ladder 2, it is further preferred that driving
Dynamic device 5 and locking device 6 include two arranged corresponding to the first vertical bar 21 and the second vertical bar 22.
Preferably, the pivot axis of extension ladder 2 corresponds to the bottom of reinforcing frame 13, so that extension ladder 2 is aligned by opening
14 arrangements convenient for the discrepancy of rescue personnel, and can block through opening comprehensively, improve the safety of working bucket 1.
According to a further aspect of the invention, a kind of fire fighting truck is provided, the fire fighting truck includes according to work described above
Make bucket assembly, working bucket 1 is installed on cantilever crane 3, and lifts under the action of cantilever crane 3, is moved to job position, compact-sized, make
With conveniently, convenient for fire fighting truck, when handling rescue work, extinguishing operation, fireman needs to carry out height rescue, or needs in river
Road, low-lying position are rescued.
According to a further aspect of the invention, a kind of control method according to working bucket assembly described above is provided,
In,
When extension ladder 2 needs to be unfolded extension ladder 2 in the reception position:
The first step, the locking for the device 6 that unlocks；
Second step, so that described control unit starts driving device 5, driving device 5 drives operation described control unit
Extension ladder 2 rotates；
Third step, when the pressure signal that the pressure sensing cells issue reaches first predetermined value, extension ladder 2 is turned to
Described to use position, described control unit locks driving device 5,
When extending ladder 2 in needs withdrawal extension ladder 2 using position:
The first step operates described control unit to release the locking of driving device 5,2 turns of ladder of the driving extension of driving device 5
It is dynamic；
Second step, when the limit of buffing pad 7 is limited when extension ladder 2 turns to the reception position to be rotated further by, institute
It states control unit control driving device 5 and stops driving；
Third step, the locking extension of locking device 6 ladder 2.
The safety expansion of extension ladder 2 can be realized by the above method and is withdrawn, it is easy to use, reliable.
It is described the prefered embodiments of the present invention in detail above in conjunction with attached drawing, still, the present invention is not limited to above-mentioned realities
The detail in mode is applied, within the scope of the technical concept of the present invention, a variety of letters can be carried out to technical solution of the present invention
Monotropic type, these simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, can be combined in any appropriate way, in order to avoid unnecessary repetition, the present invention to it is various can
No further explanation will be given for the combination of energy.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (11)
1. a kind of extension ladder structure of working bucket, which is characterized in that the terraced structure of the extension includes:
It extends terraced (2), described one end for extending terraced (2) can be articulated with working bucket, and can rotate relative to the working bucket
To switch in reception position and using between position；
Driving device (5), the driving device (5) can drive the extension ladder rotation；And
Locking device (6), when the extension terraced (2) is in the reception position, the locking device (6) can lock described
Extend terraced (2).
2. the extension ladder structure of working bucket according to claim 1, which is characterized in that the locking device (6) includes bullet
Spring pin, it is described to extend the pin hole that arrangement corresponding with the spring catch is formed on terraced (2).
3. the extension ladder structure of working bucket according to claim 1, which is characterized in that
The terraced structure of the extension includes limiting buffer seat (7), and the limiting buffer seat (7) can limit the extension terraced (2) and exist
It is rotated between the reception position and the use device；And/or
The other end for extending terraced (2) is formed with U-shaped mounting rack (25), and the U-shaped mounting rack (25) is equipped with idler wheel (4).
4. the extension ladder structure of working bucket described in any one of -3 according to claim 1, which is characterized in that the driving dress
It sets including hydraulic cylinder, the fixing end of the hydraulic cylinder can be installed on the working bucket, and the movable end of the hydraulic cylinder is installed on
The extension is terraced (2).
5. the extension ladder structure of working bucket according to claim 4, which is characterized in that the extension terraced (2) includes interval
The first vertical bar (21) and the second vertical bar (22) of arrangement and connect first vertical bar (21) and second vertical bar (22)
Multiple cross bars (23), wherein first vertical bar (21) and second vertical bar (22) are formed as L-shaped structure, the movable end
It is installed on the corner location of the L-shaped structure, the depressed section of the L-shaped structure is towards the working bucket (1).
6. a kind of working bucket assembly, which is characterized in that the working bucket assembly includes:
Working bucket (1), the working bucket (1) include pedestal (11) and around the pedestal (11) arrangement shielded frame (12),
Opening (14) are formed through on the shielded frame (12)；And
According to claim 1, extension ladder structure described in any one of -5, the extension terraced (2) pass through opening corresponding to described
(14) it arranges, and is articulated with the working bucket (2), the other end for extending terraced (2) is provided with pressure sensing cells；And
Control unit, described control unit can control the driving device according to the pressure signal of the pressure sensing cells
(5)。
7. working bucket assembly according to claim 6, which is characterized in that
When the pressure signal reaches first predetermined value, described control unit determines that the extension terraced (2) reaches the use
Position, described control unit issue locking signal to lock the driving device (5)；And/or
Described control unit includes the control panel for being set to the working bucket (1), has expansion button on the control panel
With withdrawal button, unlock button, and the button that unlocks described in triggering can release the locking of the driving device (5).
8. working bucket assembly according to claim 6, which is characterized in that in the reception position, the extension terraced (2) is hidden
Covert is stated through opening (14), uses position described, the extension terraced (2) conducting is described to pass through opening (14).
9. the working bucket assembly according to any one of claim 6-8, which is characterized in that
The periphery by opening (14) is formed with reinforcing frame (13), the driving device (5) and the locking device (6) peace
Loaded on the reinforcing frame (13)；And/or
The pivot axis for extending terraced (2) corresponds to the bottom of the reinforcing frame (13).
10. a kind of fire fighting truck, which is characterized in that the fire fighting truck includes the work according to any one of claim 6-9
Make bucket assembly.
11. the control method of the working bucket assembly according to any one of claim 6-9, which is characterized in that
When the extension terraced (2), which is in the reception position, needs to be unfolded the extension terraced (2):
The first step releases the locking of the locking device (6)；
Second step, operation described control unit is so that described control unit starts the driving device (5), the driving device
(5) extension terraced (2) rotation is driven；
Third step, when the pressure signal that the pressure sensing cells issue reaches first predetermined value, the extension terraced (2) rotation
Position is used to described, described control unit locks the driving device (5),
When the extension terraced (2), which is in the use position, needs to withdraw the extension terraced (2):
The first step operates described control unit to release the locking of the driving device (5), and the driving device (5) drives institute
State extension terraced (2) rotation；
Second step, buffing pad (7) limit is limited when the extension terraced (2) turns to the reception position to be rotated further by
When, described control unit controls the driving device (5) and stops driving；
Third step, it is terraced (2) that the locking device (6) locks the extension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811511529.4A CN109542016A (en) | 2018-12-11 | 2018-12-11 | Extend terraced structure, working bucket assembly and its control method and fire fighting truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811511529.4A CN109542016A (en) | 2018-12-11 | 2018-12-11 | Extend terraced structure, working bucket assembly and its control method and fire fighting truck |
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| Publication Number | Publication Date |
|---|---|
| CN109542016A true CN109542016A (en) | 2019-03-29 |
Family
ID=65854240
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811511529.4A Pending CN109542016A (en) | 2018-12-11 | 2018-12-11 | Extend terraced structure, working bucket assembly and its control method and fire fighting truck |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110714718A (en) * | 2019-10-09 | 2020-01-21 | 长沙中联消防机械有限公司 | Aerial ladder and elevating fire truck |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110714718A (en) * | 2019-10-09 | 2020-01-21 | 长沙中联消防机械有限公司 | Aerial ladder and elevating fire truck |
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Application publication date: 20190329 |
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| RJ01 | Rejection of invention patent application after publication |