CN209257995U - A kind of hydraulic folding climbing ladder - Google Patents
A kind of hydraulic folding climbing ladder Download PDFInfo
- Publication number
- CN209257995U CN209257995U CN201821703533.6U CN201821703533U CN209257995U CN 209257995 U CN209257995 U CN 209257995U CN 201821703533 U CN201821703533 U CN 201821703533U CN 209257995 U CN209257995 U CN 209257995U
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- China
- Prior art keywords
- ladder
- segment
- vehicle frame
- section
- wirerope
- 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.)
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- 230000009194 climbing Effects 0.000 title claims abstract description 16
- 230000007246 mechanism Effects 0.000 claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 238000004642 transportation engineering Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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- Ladders (AREA)
Abstract
A kind of hydraulic folding climbing ladder, including first segment ladder and the second section ladder, it further include Automatic-expanding mechanism, first segment ladder is hingedly mounted on vehicle frame tail portion, first segment ladder is hingedly installed with the second section ladder by articulated shaft, vehicle frame tail portion is hingedly equipped with the overturning oil cylinder for overturning first segment ladder, and piston shaft and the first segment ladder of the overturning oil cylinder are hingedly installed；The first segment ladder and the second section ladder are equipped with the Automatic-expanding mechanism that the second section ladder is unfolded when overturning oil cylinder overturns first segment ladder.The utility model facilitates manual operation and reduces production cost, effectively reduces the ramp angle of ladder, solves the problems, such as the passability of engineering mechanical device.
Description
Technical field
The utility model relates to a kind of hydraulic folding climbing ladders, more particularly to a kind of flat bed transport vehicle and low flat bed semi trailer
Tail portion ladder.
Background technique
With the continuous development of China's economy infrastructure is improved day by day, and digging machine hook machine, churning driven, tar spraying car,
A series of engineering machinery such as shield machine use more and more extensive.The transport market of engineering machinery is increasingly mature, occurs a series of
The special purpose vehicle of special Transportation Engineering machinery.The appearance of flat bed transport vehicle not only solves national highway control problem, and contracts
The short engineer machinery change field time, improve engineering machinery running efficiency.
Special purpose vehicle tail portion for Transportation Engineering machinery is equipped with ladder, since large-scale engineering machinery is longer, and upgrade angle
Degree is smaller, and generally less than 13 degree.Common non-collapsible ladder length limited can only do 2500mm, ramp angle 20 in vehicle height
Degree or more.Using hydraulic folding climbing ladder, the weight of folded portion is 200KG or so, and impersonal force can be unfolded.How ladder is solved whole
Body design realizes the ladder for being not necessarily to manual operation, just becomes those skilled in the art's urgent need to resolve under cost low as far as possible
Problem.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of hydraulic folding climbing ladders, facilitate manual operation and reduction
Production cost.
In order to solve the above-mentioned technical problem, the utility model takes following technical scheme:
A kind of hydraulic folding climbing ladder, including first segment ladder and the second section ladder, further include Automatic-expanding mechanism, first segment
Ladder is hingedly mounted on vehicle frame tail portion, and first segment ladder is hingedly installed with the second section ladder by articulated shaft, and vehicle frame tail portion is hinged
Overturning oil cylinder for overturning first segment ladder is installed, piston shaft and the first segment ladder of the overturning oil cylinder are hingedly installed；Institute
Stating first segment ladder and the second section ladder and being equipped with is unfolded the second section ladder when overturning oil cylinder overturns first segment ladder
Automatic-expanding mechanism.
The Automatic-expanding mechanism includes that vehicle frame fixed pulley, first segment ladder pulley, fixed pulley and wirerope, vehicle frame are slided surely
Wheel is rotatably installed in vehicle frame tail portion, and fixed pulley is rotatably installed on articulated shaft, and first segment ladder pulley rotation is mounted on first segment
On ladder, wirerope one end is fixedly mounted on vehicle frame tail portion, and the wirerope other end is successively from vehicle frame fixed pulley, first segment ladder
Pulley, fixed pulley alternately around being fixedly attached on the second section ladder later.
The end of the second section ladder is rotatably equipped with idler wheel.
The vehicle frame tail portion is equipped with connector, and wirerope installation is connected on the connector.
It is also equipped with insurance steel cable on the first segment ladder, which connect with vehicle frame.
The first segment ladder pulley is located at the lower part of first segment ladder.
The connector is steel wire rope clamp or wedge joint.
The utility model is greatly facilitated manual operation and is reduced by hydraulic cylinder and wirerope Automatic-expanding mechanism
Production cost.Using folding climbing ladder, ladder length is significantly increased within the scope of regulation, effectively reduces the upgrade angle of ladder
Degree, solves the problems, such as the passability of engineering mechanical device.Double insurance device is devised, ensure that stabilization when vehicle driving
Property.
Detailed description of the invention
Attached drawing 1 is the overall structure diagram of the utility model；
Attached drawing 2 is that the utility model simplifies connection schematic diagram；
The schematic diagram of ladder state when Fig. 3 is the second section ladder landing of the utility model.
Fig. 4 is the structural schematic diagram after the ladder expansion of the utility model.
Figure label: 1- insurance steel cable；2- first segment ladder lifting cylinder；3- wirerope；4- vehicle frame fixed pulley；5-
One section ladder pulley；6- fixed pulley；7- idler wheel；8- steel cable termina；9- the second section ladder.
Specific embodiment
For the feature, technological means and specific purposes achieved, function that can further appreciate that the utility model, below
The utility model is described in further detail in conjunction with attached drawing and specific embodiment.
As shown in figure 1 and 2, the utility model discloses a kind of hydraulic folding climbing ladder, including first segment ladder and second
Ladder is saved, further includes Automatic-expanding mechanism, first segment ladder is hingedly mounted on vehicle frame tail portion, first segment ladder and the second section ladder
It is hingedly installed by articulated shaft, vehicle frame tail portion is hingedly equipped with the overturning oil cylinder for overturning first segment ladder, the overturning oil cylinder
Piston shaft hingedly installed with first segment ladder；The first segment ladder and the second section ladder, which are equipped with, works as overturning oil cylinder for first
The Automatic-expanding mechanism that the second section ladder is unfolded when section ladder overturning.First segment ladder is turned over backward after overturning oil cylinder starting
Turn.Since first segment ladder and the second section ladder are hinged installation, opening or storage can be relatively rotated.
The Automatic-expanding mechanism includes that vehicle frame fixed pulley, first segment ladder pulley, fixed pulley and wirerope, vehicle frame are slided surely
Wheel is rotatably installed in vehicle frame tail portion, and fixed pulley is rotatably installed on articulated shaft, and first segment ladder pulley rotation is mounted on first segment
The lower part of ladder, and relatively with vehicle frame fixed pulley, wirerope one end is fixedly mounted on vehicle frame tail portion, and the wirerope is another
End successively from vehicle frame fixed pulley, first segment ladder pulley, fixed pulley alternately around being fixedly attached on the second section ladder later.It utilizes
Wirerope pulls the second section ladder, so that being implemented without extra power can turn over by first segment ladder being reversed oil cylinder
The purpose of the second section ladder is pulled when turning.
In addition, idler wheel is rotatably equipped in the end of the second section ladder to preferably be unfolded, when the second section ladder is downward
After expansion, it can be rolled on the ground using the idler wheel, to recycle the self weight of the second section ladder, more easily be opened up
Start work.
Wirerope is installed in order to facilitate connection, connector is housed in vehicle frame tail portion, wirerope installation is connected on the connector.It should
Connector is steel wire rope clamp or wedge joint, and wirerope is in tension.
It is also equipped with insurance steel cable on the first segment ladder, which connect with vehicle frame.Utilize the insurance
Wirerope, it can be ensured that safety, the opening of first segment ladder when avoiding storing improve safety.
Limitation by insurance steel cable to first segment ladder, limitation of the wirerope to the second section ladder, forms dual guarantor
Danger, safety and reliability are higher.
Vehicle is in motion: ladder is packed up, and first segment ladder is tensed on vehicle frame by insurance steel cable 1, thus to prevent
Only ladder is opened, and guarantees safety and reliability.For opening the wirerope 3 of ladder due in tension, and tense
The second section ladder, therefore the wirerope 3 can prevent at this moment the second section ladder open.Make vehicle even running.It is packing up
Under state, the coiling length of the wirerope on fixed pulley 6 is maximum, and the coiling length of the wirerope on vehicle frame fixed pulley 4 is minimum, and
First segment ladder pulley plays the role of pulling wirerope.
In handling facilities: first segment ladder 10 controls overturning by hydraulic cylinder 2.10 switching process of first segment ladder
In with vehicle frame can generate certain relative displacement, drive first segment ladder pulley 5 to pull wirerope 3, keep wirerope 3 fixed in vehicle frame
Coiling length on pulley 4 increases, and the coiling length on fixed pulley 6 reduces, and wirerope is shunk towards vehicle frame direction at this time, so that
The second section ladder 9 is pulled by wirerope 3, in the landing of the second section ladder, has expanded certain angle, first segment ladder
10 continue to overturn, and the second section ladder is unfolded on the ground by self weight and idler wheel 7, realize the exhibition automatically of the second section ladder 9 with this
The purpose opened.
It should be noted that it is practical new to be not limited to this above is only the preferred embodiment of the utility model
Type, although the utility model is described in detail referring to embodiment, for those skilled in the art, still
It can modify to technical solution documented by previous embodiment or equivalent replacement of some of the technical features,
But within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should be included in
Within the protection scope of the utility model.
Claims (7)
1. a kind of hydraulic folding climbing ladder, including first segment ladder and the second section ladder, which is characterized in that further include automatic developing machine
Structure, first segment ladder are hingedly mounted on vehicle frame tail portion, and first segment ladder is hingedly installed with the second section ladder by articulated shaft, vehicle frame
Tail portion is hingedly equipped with the overturning oil cylinder for overturning first segment ladder, and the piston shaft and first segment ladder of the overturning oil cylinder are hinged
Installation；
The first segment ladder and the second section ladder, which are equipped with, makes the second section ladder when overturning oil cylinder overturns first segment ladder
The Automatic-expanding mechanism of expansion.
2. hydraulic folding climbing ladder according to claim 1, which is characterized in that the Automatic-expanding mechanism includes that vehicle frame is slided surely
Wheel, first segment ladder pulley, fixed pulley and wirerope, vehicle frame fixed pulley are rotatably installed in vehicle frame tail portion, fixed pulley rotational installation
On articulated shaft, first segment ladder pulley rotation is mounted on first segment ladder, and wirerope one end is fixedly mounted on vehicle frame tail portion,
The wirerope other end is successively from vehicle frame fixed pulley, first segment ladder pulley, fixed pulley alternately around being fixedly attached later second
It saves on ladder.
3. hydraulic folding climbing ladder according to claim 2, which is characterized in that the end of the second section ladder is rotatablely installed
There is idler wheel.
4. hydraulic folding climbing ladder according to claim 3, which is characterized in that the vehicle frame tail portion is equipped with connector, wirerope
Installation is connected on the connector.
5. hydraulic folding climbing ladder according to claim 4, which is characterized in that be also equipped with insurance on the first segment ladder
Wirerope, the insurance steel cable are connect with vehicle frame.
6. hydraulic folding climbing ladder according to claim 5, which is characterized in that the first segment ladder pulley is located at first segment
The lower part of ladder.
7. hydraulic folding climbing ladder according to claim 6, which is characterized in that the connector is that steel wire rope clamp or wedge shape connect
Head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821703533.6U CN209257995U (en) | 2018-10-21 | 2018-10-21 | A kind of hydraulic folding climbing ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821703533.6U CN209257995U (en) | 2018-10-21 | 2018-10-21 | A kind of hydraulic folding climbing ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209257995U true CN209257995U (en) | 2019-08-16 |
Family
ID=67558716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821703533.6U Expired - Fee Related CN209257995U (en) | 2018-10-21 | 2018-10-21 | A kind of hydraulic folding climbing ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209257995U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111794571A (en) * | 2020-06-15 | 2020-10-20 | 北京真空电子科技有限公司 | Hydraulic type reversible vehicle guide bridge |
-
2018
- 2018-10-21 CN CN201821703533.6U patent/CN209257995U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111794571A (en) * | 2020-06-15 | 2020-10-20 | 北京真空电子科技有限公司 | Hydraulic type reversible vehicle guide bridge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190816 |