CN208842299U - Transport vehicle jacking hydraulic system and transport vehicle - Google Patents
Transport vehicle jacking hydraulic system and transport vehicle Download PDFInfo
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- CN208842299U CN208842299U CN201821454133.6U CN201821454133U CN208842299U CN 208842299 U CN208842299 U CN 208842299U CN 201821454133 U CN201821454133 U CN 201821454133U CN 208842299 U CN208842299 U CN 208842299U
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Abstract
This application discloses a kind of transport vehicle jacking hydraulic systems, including jack-up system, the jack-up system includes the jacking cylinder for overturning rollover stand, pull back motor and the bandage of pulling back that rollover stand is pulled back, the jacking cylinder and bandage of pulling back are arranged between rollover stand and chassis, the motor of pulling back is arranged in the lower part of chassis and is connected with bandage of pulling back, through the above technical solution, mutation influence caused by the stability of the stroke of box-type container of this critical-point pressure can be controlled, stablize the stroke of box-type container during overturning, the application also provides a kind of transport vehicle for being provided with above-mentioned jacking hydraulic system.
Description
Technical field
This application involves transport vehicle field more particularly to a kind of transport vehicle jacking hydraulic systems.
Background technique
Currently, more and more containers and specific vehicle carried container are applied in the transport of cargo or rubbish, such as
A kind of vehicle carried container for liquid transporting is disclosed in the Chinese utility model specification that Authorization Notice No. is CN2671994Y,
Authorization Notice No. is that the Chinese utility model patent of 201437456U discloses a kind of tank type container for transferring rubbish, Granted publication
Number a kind of Universal container for garbage transportation is disclosed for the Chinese utility model patent of 201580737U, these vehicle-mounted box appearances
What the loading of device was realized usually by way of lifting, thus it is very constant.
Authorization Notice No. is attacked for the Chinese utility model patent of CN201021173Y has carried out a kind of vehicle carried container handling steel
Silk traction mechanism, the steel wire traction mechanism are realized pair by the way that steel wire traction rope and two-way cylinder are arranged on rollover stand
The overturning and drawing of box-type container, and then loading and the unloading of vertical box-type container are realized, but in the process of rollover stand overturning
In, there are a critical point, i.e. box-type container suddenly becomes zero position to the pressure of rollover stand, and gravity can be moved up from rollover stand
It removes, and the movable stand that is fixedly connected with box-type container and rollover stand is driven to turn over pendant backward, above-mentioned steel wire traction mechanism and its hydraulic
System is unable to control mutation influence caused by the stability of the stroke of box-type container of this critical-point pressure.
Utility model content
In view of above-mentioned deficiency present in current box-type container transport process, it is hydraulic that the application provides a kind of transport vehicle jacking
System can control mutation influence caused by the stability of the stroke of box-type container of this critical-point pressure, make box appearance
The stroke of device is stablized during overturning.
In order to achieve the above objectives, embodiments herein adopts the following technical scheme that
A kind of transport vehicle jacking hydraulic system, including jack-up system, the jack-up system include the top for overturning rollover stand
Oil-lifting jar, pull back motor and the bandage of pulling back that rollover stand is pulled back, the jacking cylinder and bandage setting of pulling back in rollover stand and
Between chassis, the motor of pulling back is arranged in the lower part of chassis and is connected with bandage of pulling back.
Rollover stand and chassis be it is hinged, for box-type container during overturning, jacking cylinder overcomes the weight of box-type container
Power jacks rollover stand upwards, until a critical point position, critical point, i.e., during overturning, pressure of the box-type container to rollover stand
Power suddenly becomes zero position, and gravity can be removed from rollover stand, and drives the movable stand being fixedly connected with box-type container and turn over
Pivoted frame turns over pendant backward, and bandage of the pulling back pulling force opposite with reverses direction in the lower offer of the power for motor offer of pulling back prevents case
Formula container turns over pendant backward, improves the stability in transport process, the motor of pulling back is oscillating oil cylinder, realizes pendulum motion, defeated
Torque and angular speed out.
Preferably, the jacking cylinder is single loop hydraulic cylinder or double loop hydraulic oil cylinder, the type of jacking cylinder
It can be selected according to the requirement of the scene and production that use, single loop hydraulic cylinder refers to only one hydraulic fluid port, can
Oil inlet, hydraulic cylinder that also can be fuel-displaced, double loop hydraulic oil cylinder refer to while having the hydraulic cylinder there are two hydraulic fluid port, a hydraulic fluid port
For oil inlet, another hydraulic fluid port is for fuel-displaced.
Preferably, the jack-up system further include jacking reversal valve, overturn integrated valve block, reversal valve of pulling back, hydraulic pump and
Fuel tank, the jacking reversal valve include I oil inlet, J oil outlet, K oil inlet and L oil outlet, and the overturning integrated valve block includes M
Oil inlet, N oil outlet, O oil inlet and P oil outlet, the reversal valve of pulling back include R oil inlet, S oil outlet, T oil inlet and U
Oil outlet, the I oil inlet are connected to hydraulic pump, and the J oil outlet is connected to M oil inlet, and the N is fuel-displaced with multi-stage oil cylinder
Hydraulic fluid port is connected to R oil inlet, and the S oil outlet is connected to the oil inlet for motor of pulling back, the T oil inlet and motor of pulling back
Oil outlet connection, the U oil outlet are connected to O oil inlet, and the P oil outlet is connected to K oil inlet, the L oil outlet and oil
Case connection, when jacking cylinder is set as single loop hydraulic cylinder, the fuel tank, hydraulic pump, I oil inlet, J oil outlet, M oil inlet
Mouth, constitutes the oil inlet access of single loop hydraulic cylinder, the N oil outlet, P oil outlet, K oil inlet, L oil outlet at N oil outlet
The fuel-displaced access of single loop hydraulic cylinder is constituted with fuel tank.When jacking cylinder is double loop hydraulic oil cylinder, the fuel tank, liquid
Press pump, J oil outlet, M oil inlet, N oil outlet, constitutes the oil inlet access of double loop hydraulic oil cylinder, the O oil inlet at I oil inlet
Mouth, P oil outlet, K oil inlet, L oil outlet and fuel tank constitute the fuel-displaced access of double loop hydraulic oil cylinder.It is the fuel tank, hydraulic
Pump, I oil inlet, J oil outlet, M oil inlet, N oil outlet, R oil inlet and S oil outlet constitute the oil inlet access for motor of pulling back,
The T oil inlet, U oil outlet, O oil inlet, P oil outlet, K oil inlet, L oil outlet and fuel tank constitute the fuel-displaced of motor of pulling back
Access.The jacking reversal valve is three-position four-way valve, the function of realizing jacking cylinder jacking, reset and be held turned over state.
The reversal valve of pulling back is two position four-way valves, realizes the function of make to pull back bandage swelling and holding swelling state.
Preferably, the overturning overturning integrated valve block further includes Q oil outlet, and the Q oil outlet is connected to fuel tank.Work as jacking
When oil cylinder is single loop hydraulic cylinder, the N oil outlet, Q oil outlet and fuel tank constitute another of single loop hydraulic cylinder
Fuel-displaced access；When jacking cylinder is double loop hydraulic oil cylinder, the O oil inlet, Q oil outlet and fuel tank constitute double loop liquid
Another fuel-displaced access of compressing cylinder, the T oil inlet, U oil outlet, O oil inlet, Q oil outlet and fuel tank constitute horse of pulling back
Another fuel-displaced access reached.
Preferably, the overturning integrated valve block includes the first sequence valve, the second sequence valve, third sequence valve, balanced valve, collection
At in-line, integrated vent line, first oil circuit, second oil circuit, third branch oil circuit and the 4th oil circuit, the integrated oil inlet
The one end on road is connected to M oil inlet, and the other end is connected to the first sequence valve, and first sequence valve is connected to N oil outlet, described
One end of integrated vent line is connected to N oil outlet and O oil inlet, and the other end is connected to Q oil outlet, the integrated in-line with
Balanced valve passes through second oil communication, the balanced valve by first oil communication between the balanced valve and O oil inlet
By third branch oil communication between P oil outlet, first sequence valve is connected to by the 4th oil circuit with integrated vent line,
Second sequence valve is arranged between second oil circuit and integrated vent line, and the third sequence valve is arranged in third branch oil circuit
Between integrated vent line, second oil circuit and the 4th oil communication, when jacking cylinder is multi-stage oil cylinder and overturning collection
When at valve block including M oil inlet, N oil outlet, O oil inlet, P oil outlet and Q oil outlet, due to only one oil of multi-stage oil cylinder
Mouthful, N oil outlet can oil inlet again can with oil return, the first sequence valve on integrated in-line make hydraulic oil can only from integrate
In-line flows to N oil outlet, and integrated in-line cannot be flowed to from N oil outlet, when rollover stand is overturn to when critical point, by beating
It opens the 6th sequence valve and the 7th sequence valve, adjusts the oil inlet quantity for motor of pulling back, the bandage that makes to pull back is in swelling state always, is turning over
When turning over postcritical, bandage of pulling back can smoothly hold rollover stand, and then hold rollover stand and be fixed on rollover stand
Container makes entire jack-up system keep stable pressure, prevents box-type container from damaging vehicle frame or born, and the balanced valve is used to
The security performance for improving jack-up system prevents during rollover stand resets, and oil line pipe bursts and makes jacking cylinder, overturning
Frame etc. falls under the gravity of box-type container.
Preferably, the reversal valve of pulling back, can be with the control on transport vehicle for solenoid directional control valve or air operated reversing valve
System connection, realizes automation control.
Preferably, the jack-up system further includes vertical travel switch and critical point travel switch, and the vertical stroke is opened
It closes and is arranged on the articulated shaft, the critical point travel switch is arranged on rollover stand, the vertical travel switch and critical
Point travel switch is connected with the control system of transport vehicle, and vertical travel switch is used to monitor the flip angle of rollover stand, is being turned over
Pivoted frame can issue vertical stroke signal when overturning to 90 degree, and control system is made to execute corresponding movement, for example, stopping to jacking
Oil cylinder fuel feeding；Critical point travel switch is overturn in rollover stand to meeting when critical point for detecting the critical point in switching process
Issue critical point stroke signal, make control system execute relative to movement, for example, make jack reversal valve be converted into right position, and
Corresponding control valve etc., vertical travel switch and critical point travel switch collective effect are opened, jacking oil in jack-up system is completed
The coordinated of cylinder and motor of pulling back completes overturning and anti-fall function.
Another mesh of the utility model it is to provide a kind of transport vehicle, the transport vehicle includes headstock, wheel, vehicle frame
With transport vehicle jacking hydraulic system as described above.
The advantages of the application is implemented: the application provides a kind of transport vehicle jacking hydraulic system, including jack-up system, the top
The system of liter includes the jacking cylinder for overturning rollover stand, pull back motor and bandage of pulling back that rollover stand is pulled back, the jacking oil
Cylinder and bandage of pulling back are arranged between rollover stand and chassis, and the motor of pulling back is arranged in the lower part of chassis and joins with bandage of pulling back
Dynamic connection, through the above technical solutions, the mutation of this critical-point pressure can be controlled to the stability of the stroke of box-type container
Caused by influence, stablize the stroke of box-type container during overturning, the application also provides one kind and be provided with above-mentioned jacking
The transport vehicle of hydraulic system.
Detailed description of the invention
It in order to more clearly explain the technical solutions in the embodiments of the present application, below will be to needed in the embodiment
Attached drawing is briefly described, it should be apparent that, the drawings in the following description are only some examples of the present application, for ability
For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is a kind of body frame structure for automotive schematic diagram of transport vehicle jacking hydraulic system described in the embodiment of the present application 1；
Fig. 2 is a kind of body frame structure for automotive schematic diagram of transport vehicle jacking hydraulic system described in the embodiment of the present application 1；
Fig. 3 is a kind of structure principle chart of transport vehicle jacking hydraulic system described in the embodiment of the present application 1；
Fig. 4 shows for a kind of amplification of the overturning integrated valve block of transport vehicle jacking hydraulic system described in the embodiment of the present application 1
It is intended to.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.It is based on
Embodiment in the application, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall in the protection scope of this application.
Embodiment 1
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, the hydraulic system of transport vehicle, including jack-up system 1, the jack-up system 1 packet
It includes for the jacking cylinder 11 for making the overturning of rollover stand 4, pull back motor 2 and the bandage 3 of pulling back that rollover stand 4 is pulled back, the jacking
Oil cylinder 11 and the bandage 3 of pulling back are arranged between rollover stand 4 and chassis 5, can rollover stand 4 overturn during from
The opposite direction of overturning holds rollover stand 4, and the motor 2 of pulling back is arranged in the lower part of chassis 5 and connects with the linkage of bandage 3 of pulling back
It connects.
The jacking cylinder 11 is single-circuit multi-stage oil cylinder.
The jack-up system 1 further includes jacking reversal valve 12, overturning integrated valve block 13, reversal valve 14 of pulling back, hydraulic pump 15
With fuel tank 16, the jacking reversal valve 12 includes I oil inlet, J oil outlet, K oil inlet and L oil outlet, the overturning pile-up valve
Block 13 include M oil inlet, N oil outlet, O oil inlet, P oil outlet and Q oil outlet, it is described pull back reversal valve 14 include R oil inlet,
S oil outlet, T oil inlet and U oil outlet, the I oil inlet are connected to hydraulic pump 15, and the J oil outlet is connected to M oil inlet,
The N is fuel-displaced to be connected to the hydraulic fluid port of multi-stage oil cylinder and R oil inlet, and the S oil outlet is connected to the oil inlet for motor 2 of pulling back,
The T oil inlet is connected to the oil outlet for motor 2 of pulling back, and the U oil outlet is connected to O oil inlet, the P oil outlet and K into
Hydraulic fluid port connection, the L oil outlet and Q oil outlet are connected to fuel tank 16 respectively, the leakage oil return opening and fuel tank of the motor 2 of pulling back
16 connection, the fuel tank 16, hydraulic pump 15, I oil inlet, J oil outlet, M oil inlet, N oil outlet, constitute multi-stage oil cylinder into
Oily access, the fuel-displaced access that the N oil outlet, P oil outlet, K oil inlet, L oil outlet and fuel tank 16 form, and by the N
The fuel-displaced access that oil outlet, Q oil outlet and fuel tank 16 form has collectively constituted the fuel-displaced access of multi-stage oil cylinder.The fuel tank 16, liquid
Press pump 15, I oil inlet, J oil outlet, M oil inlet, N oil outlet, R oil inlet and S oil outlet constitute the oil inlet for motor 2 of pulling back
Access is made of fuel-displaced the T oil inlet, U oil outlet, O oil inlet, P oil outlet, K oil inlet, L oil outlet and fuel tank 16
Access, and collectively constituted by the fuel-displaced access that the T oil inlet, U oil outlet, O oil inlet, Q oil outlet and fuel tank 16 form
The fuel-displaced access of motor 2 of pulling back.
The overturning integrated valve block 13 includes the first sequence valve 13a, the second sequence valve 13b, third sequence valve 13c, balance
Valve 13d, integrate in-line 13e, integrated vent line 13f, first oil circuit 13g, second oil circuit 13h, third branch oil circuit 13i and
4th oil circuit 13j, one end of the integrated in-line 13e are connected to M oil inlet, and the other end is connected to the first sequence valve 13a,
The first sequence valve 13a is connected to N oil outlet, and one end of the integrated vent line 13f connects with N oil outlet and O oil inlet
Logical, the other end is connected to Q oil outlet, and the integrated in-line 13e is connected to balanced valve 13d by first oil circuit 13g, described
By second oil circuit 13h connection between balanced valve 13d and O oil inlet, by the between the balanced valve 13d and P oil outlet
Three oil circuit 13i connection, the first sequence valve 13a are connected to by the 4th oil circuit 13j with integrated vent line 13f, and described the
Two sequence valve 13b are arranged between second oil circuit 13h and integrated vent line 13f, and the third sequence valve 13c is arranged in third
Between branch oil circuit 13i and integrated vent line 13f, described second oil circuit 13h and the 4th oil circuit 13j connection, due to multi-grade oil
Only one hydraulic fluid port of cylinder, N oil outlet can oil inlet again can the first sequence valve 13a with oil return, on integrated in-line 13e
Make hydraulic oil that can only flow to N oil outlet from integrated in-line 13e, and integrated in-line 13e cannot be flowed to from N oil outlet, when turning over
The overturning of pivoted frame 4, by opening the 6th sequence valve and the 7th sequence valve, adjusts the oil inlet quantity for motor 2 of pulling back, makes back to when critical point
Bandage 3 is drawn to be in swelling state always, when being turned over postcritical, bandage 3 of pulling back can smoothly hold rollover stand 4, into
And the container holding rollover stand 4 and being fixed on rollover stand 4, so that entire jack-up system 1 is kept stable pressure, prevents box appearance
Device damages vehicle frame or born, and the balanced valve 13d is used to improve the security performance of jack-up system 1, prevents from resetting in rollover stand 4
During, oil line pipe bursts and makes jacking cylinder 11, rollover stand 4 etc. to fall under the gravity of box-type container.
The jack-up system 1 further includes vertical travel switch and critical point travel switch, the vertical travel switch setting
On the articulated shaft, the critical point travel switch is arranged on rollover stand 4, the vertical travel switch and critical point stroke
Switch is connected with the control system of transport vehicle, and vertical travel switch is used to monitor the flip angle of rollover stand 4, in rollover stand 4
Vertical stroke signal can be issued when overturning is to 90 degree, control system, which executes, to be stopped to multi-stage oil cylinder fuel feeding；Critical point travel switch
For detecting the critical point in switching process, in the overturning of rollover stand 4 to critical point stroke signal can be issued when critical point, control
System execution makes jacking reversal valve 12 be converted into right position by left position, and opens the first sequence valve 13a and the second sequence valve 13b, adjusts
The in-line for motor 2 of pulling back is saved, and adjusts return pressure and recirculating oil quantity, increases the pressure for motor 2 of pulling back in advance, and then increase and make
Pulling force for pulling back on bandage 3, vertical travel switch and critical point travel switch collective effect complete top in jack-up system 1
The coordinated of oil-lifting jar 11 and motor 2 of pulling back completes overturning and anti-fall function, keeps the stroke of box-type container more steady.
Embodiment 2
A kind of transport vehicle, the transport vehicle include headstock, vehicle frame, wheel and hydraulic jacking system described in embodiment 11.
The advantages of the application is implemented: the application provides a kind of transport vehicle jacking hydraulic system, including jack-up system, the top
The system of liter includes the jacking cylinder for overturning rollover stand, pull back motor and bandage of pulling back that rollover stand is pulled back, the jacking oil
Cylinder and bandage of pulling back are arranged between rollover stand and chassis, and the motor of pulling back is arranged in the lower part of chassis and joins with bandage of pulling back
Dynamic connection, through the above technical solutions, the mutation of this critical-point pressure can be controlled to the stability of the stroke of box-type container
Caused by influence, stablize the stroke of box-type container during overturning, the application also provides one kind and be provided with above-mentioned jacking
The transport vehicle of hydraulic system.
The above, the only specific embodiment of the application, but the protection scope of the application is not limited thereto, it is any
Those skilled in the art is in technical scope disclosed in the present application, and any changes or substitutions that can be easily thought of, all answers
Cover within the scope of protection of this application.Therefore, the protection scope of the application should be with the scope of protection of the claims
It is quasi-.
Claims (8)
1. transport vehicle jacking hydraulic system, including jack-up system, the jack-up system includes the jacking cylinder for overturning rollover stand,
It is characterized in that, further include that pulling back that rollover stand is pulled back and is pulled back bandage at motor, the bandage setting of pulling back in rollover stand and
Between chassis, the motor of pulling back is arranged in the lower part of chassis and is connected with bandage of pulling back.
2. transport vehicle jacking hydraulic system according to claim 1, which is characterized in that the jacking cylinder is single loop liquid
Compressing cylinder or double loop hydraulic oil cylinder.
3. transport vehicle jacking hydraulic system according to claim 1 or 2, which is characterized in that the jack-up system further includes
Jacking reversal valve overturns integrated valve block and reversal valve of pulling back, and the jacking reversal valve includes I oil inlet, J oil outlet, K oil inlet
With L oil outlet, the overturning integrated valve block includes M oil inlet, N oil outlet, O oil inlet and P oil outlet, the reversal valve of pulling back
Including R oil inlet, S oil outlet, T oil inlet and U oil outlet, the I oil inlet is connected to hydraulic pump, the J oil outlet and M into
Hydraulic fluid port connection, the N is fuel-displaced to be connected to the hydraulic fluid port of single loop hydraulic cylinder and R oil inlet, the S oil outlet and motor of pulling back
Oil inlet connection, the T oil inlet is connected to the oil outlet for motor of pulling back, and the U oil outlet is connected to O oil inlet, the P
Oil outlet is connected to K oil inlet, and the L oil outlet is connected to fuel tank.
4. transport vehicle jacking hydraulic system according to claim 3, which is characterized in that further include Q oil outlet, the Q goes out
Hydraulic fluid port is connected to fuel tank.
5. transport vehicle jacking hydraulic system according to claim 4, which is characterized in that the overturning integrated valve block includes the
One sequence valve, the second sequence valve, third sequence valve, balanced valve integrate in-line, integrated vent line, first oil circuit, second
Oil circuit, third branch oil circuit and the 4th oil circuit, one end of the integrated in-line are connected to M oil inlet, and the other end is suitable with first
The connection of sequence valve, first sequence valve are connected to N oil outlet, and one end of the integrated vent line and N oil outlet and O oil inlet are equal
Connection, the other end are connected to Q oil outlet, and the integrated in-line peace weighing apparatus valve passes through first oil communication, the balanced valve
By second oil communication between O oil inlet, pass through third branch oil communication, institute between the balanced valve and P oil outlet
It states the first sequence valve to be connected to by the 4th oil circuit with integrated vent line, second sequence valve is arranged in second oil circuit sum aggregate
At between vent line, the third sequence valve is arranged between third branch oil circuit and integrated vent line, second oil circuit and
4th oil communication.
6. transport vehicle jacking hydraulic system according to claim 3, which is characterized in that the reversal valve of pulling back changes for electromagnetism
To valve or air operated reversing valve.
7. transport vehicle jacking hydraulic system according to claim 1, which is characterized in that the jack-up system further includes vertical
Travel switch and critical point travel switch, the vertical travel switch are arranged on the articulated shaft, and the critical point stroke is opened
It closes and is arranged on rollover stand, the vertical travel switch is connect with the control system of transport vehicle with critical point travel switch.
8. a kind of transport vehicle, the transport vehicle includes headstock, wheel and vehicle frame, which is characterized in that the transport vehicle is equipped with as weighed
Benefit requires 1 to the described in any item transport vehicle jacking hydraulic systems of claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821454133.6U CN208842299U (en) | 2018-09-05 | 2018-09-05 | Transport vehicle jacking hydraulic system and transport vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821454133.6U CN208842299U (en) | 2018-09-05 | 2018-09-05 | Transport vehicle jacking hydraulic system and transport vehicle |
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| Publication Number | Publication Date |
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| CN208842299U true CN208842299U (en) | 2019-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821454133.6U Active CN208842299U (en) | 2018-09-05 | 2018-09-05 | Transport vehicle jacking hydraulic system and transport vehicle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109109714A (en) * | 2018-09-05 | 2019-01-01 | 上海中荷环保有限公司 | Transport vehicle jacking hydraulic system and transport vehicle |
| CN110182498A (en) * | 2019-06-25 | 2019-08-30 | 上海中荷环保有限公司 | A kind of vehicle frame and transport vehicle for vertical cabinet |
-
2018
- 2018-09-05 CN CN201821454133.6U patent/CN208842299U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109109714A (en) * | 2018-09-05 | 2019-01-01 | 上海中荷环保有限公司 | Transport vehicle jacking hydraulic system and transport vehicle |
| CN109109714B (en) * | 2018-09-05 | 2024-02-27 | 上海中荷环保有限公司 | Hydraulic system for lifting transport vehicle and transport vehicle |
| CN110182498A (en) * | 2019-06-25 | 2019-08-30 | 上海中荷环保有限公司 | A kind of vehicle frame and transport vehicle for vertical cabinet |
| CN110182498B (en) * | 2019-06-25 | 2024-01-05 | 上海中荷环保有限公司 | Frame for vertical box body and transport vehicle |
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