CN208138226U - Hydraulic system and lifting machine - Google Patents
Hydraulic system and lifting machine Download PDFInfo
- Publication number
- CN208138226U CN208138226U CN201820680288.5U CN201820680288U CN208138226U CN 208138226 U CN208138226 U CN 208138226U CN 201820680288 U CN201820680288 U CN 201820680288U CN 208138226 U CN208138226 U CN 208138226U
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- Prior art keywords
- hydraulic
- fuel tank
- hydraulic system
- pump
- connect
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- 239000002828 fuel tank Substances 0.000 claims abstract description 82
- 239000000446 fuel Substances 0.000 claims abstract description 58
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 20
- 239000003921 oil Substances 0.000 claims description 18
- 238000001914 filtration Methods 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 description 8
- 230000007423 decrease Effects 0.000 description 7
- 239000007788 liquid Substances 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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- Fluid-Pressure Circuits (AREA)
Abstract
The utility model provides a kind of hydraulic system and lifting machine, is related to the technical field of hydraulic device.Hydraulic system includes fuel tank, electric operating system, manual operation system and valve plate；Valve plate is located at the top of fuel tank, and one end of electric operating system is connect with fuel tank, and the other end passes through valve plate and connect with operating cylinder, and one end of manual operation system is connect with fuel tank, and the other end passes through valve plate and connect with operating cylinder；Manual operation system includes manual pump and the first hydraulic system fuel feed pump, one end of first hydraulic system fuel feed pump is connect with fuel tank, the other end of first hydraulic system fuel feed pump is connect with operating cylinder, manual pump is connected on the first hydraulic system fuel feed pump, so that hydraulic oil is flowed into operating cylinder under the action of manual pump by fuel tank.Solve in the prior art, hydraulic system in the event of a power failure, can not normal use the technical issues of.The manual operation system of the utility model can continue to operate hydraulic system in the event of a power failure.
Description
Technical field
The utility model relates to hydraulic device technical fields, more particularly, to a kind of hydraulic system and lifting machine.
Background technique
Hydraulic pump is the dynamical element of hydraulic system, is that oil is sucked from hydraulic oil container by engine or motor drive
Liquid forms pressure oil discharge, is sent to a kind of element of executive component.There are many types of hydraulic pump, can according to the adjusting of flow
It is divided into, variable pump and constant displacement pump；It can be divided into according to hydraulic pump by structure, gear pump, plunger pump, vane pump and screw pump, wherein
Gear pump is small in size, and structure is simple, cheap；Vane pump uniform flow, smooth running, noise are small；Plunger pump volumetric efficiency
Height, leakage are small, can work under high pressure, in use, suitable hydraulic pump can be selected according to specific operating condition.
Car lift is the equipment for lifting automobile during auto repair, using lifting machine by vehicle hoisting to work
Position, facilitates the maintenance and maintenance of automobile.Existing car lift uses two kinds of sides of mechanical lifting machine and fluid pressure type lifting machine
Formula realizes lifting to vehicle, wherein it is relatively more steady using the process of hydraulic jack lifting vehicle, noise is small, and hydraulic act
The strength of the machine of liter is big, and maintenance cost is low, and therefore, automobile is mostly lifted using hydraulic jack during lifting.
But existing hydraulic jack is in the event of a power failure, the generator or engine of the hydraulic pump of hydraulic system
It can not work, so that hydraulic jack can not work normally, vehicle cannot achieve lifting, be unfavorable for the maintenance of vehicle
Be normally carried out, bring inconvenience for the maintenance of vehicle.
Utility model content
The purpose of this utility model is to provide a kind of hydraulic systems, existing in the prior art to solve, hydraulic system
In the event of a power failure, can not normal use the technical issues of.
The utility model additionally provides a kind of lifting machine, existing in the prior art to solve, the hydraulic system of lifting machine
In the event of a power failure, can not normal use, the technical issues of making troubles for the maintenance of vehicle.
A kind of hydraulic system provided by the utility model, including fuel tank, electric operating system, manual operation system and valve
Plate；
The valve plate is connected to the top of the fuel tank, and one end of the electric operating system is connect with fuel tank, the electricity
The other end of dynamic operating system passes through valve plate and connect with operating cylinder, and one end of the manual operation system is connect with fuel tank, institute
The other end for stating manual operation system passes through valve plate and connect with operating cylinder；
The manual operation system includes manual pump and the first hydraulic system fuel feed pump, the first hydraulic system fuel feed pump
One end connect with fuel tank, the other end of the first hydraulic system fuel feed pump is connect with operating cylinder, manual pump connection
On the first hydraulic system fuel feed pump, so that hydraulic oil flows into the operating cylinder by fuel tank under the action of manual pump
It is interior.
Further, the manual operation system further includes first filter；
The first filter is connected to one end that the first hydraulic system fuel feed pump is connect with fuel tank.
Further, the electric operating system includes hydraulic pump, motor, the second hydraulic system fuel feed pump and check valve；
One end of the hydraulic pump is connect with fuel tank, and the other end of the hydraulic pump is connected to motor, and the hydraulic pump is logical
It crosses the second hydraulic system fuel feed pump to connect with operating cylinder, so that the hydraulic pump passes through the second hydraulic pressure system under the action of motor
Hydraulic oil in fuel tank is sucked into the operating cylinder by system fuel feed pump；
The check valve is connected on the second hydraulic system fuel feed pump.
Further, the electric operating system further includes trimmer valve；
The trimmer valve is connected between the second hydraulic system fuel feed pump and fuel tank.
Further, the electric operating system further includes the overflow valve for adjusting hydraulic system pressure；
The overflow valve is connected between the second hydraulic system fuel feed pump and fuel tank.
Further, the electric operating system further includes the solenoid valve for controlling hydraulic system off-load；
The solenoid valve is connected between the second hydraulic system fuel feed pump and fuel tank.
Further, the electric operating system further includes the flow control valve for adjusting hydraulic fluid flow rate；
The flow control valve is connected between the solenoid valve and fuel tank.
Further, the electric operating system further includes the second filter；
Second filter is connected between the hydraulic pump and fuel tank.
It further, further include air respiratorresuscitator and pipeline explosion-proof valve；
The air respiratorresuscitator is connected on the fuel tank, and the pipeline explosion-proof valve is connected to the oil inlet of operating cylinder
Place.
The utility model also provides a kind of lifting machine, including operating cylinder and hydraulic system as described above；
The hydraulic system is connect with operating cylinder.
Hydraulic system provided by the utility model, the valve plate are located between fuel tank and operating cylinder, the electric operating
The lower end of system is connect with fuel tank, and the upper end of the electric operating system passes through valve plate and connect with operating cylinder, is being worked normally
Under state, using electric operating system, realizes that the oil in fuel tank is drawn into operating cylinder, guarantee the smooth work of operating cylinder
Make；The lower end of the manual operation system is connect with fuel tank, and the upper end of manual operation system passes through valve plate and connect with operating cylinder,
In off-position, using manual operation manual operation system, the normal use of hydraulic system in the power-off state is realized；It is described
The lower end of first hydraulic system fuel feed pump is connect with fuel tank, and the manual pump is connected on the first hydraulic system fuel feed pump, described
The upper end of first hydraulic system fuel feed pump is connect with operating cylinder, by the way that manual pump is manually operated, realizes that the oil in fuel tank reaches
In operating cylinder, guarantee that hydraulic system can be continued to use in off-position and normal power supply state.
Lifting machine provided by the utility model, the hydraulic system are connect with operating cylinder, so that lifting machine is in power-off shape
It can be used under state and normal power supply state, the convenient maintenance to vehicle.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the schematic diagram of hydraulic system provided by the embodiment of the utility model；
Fig. 2 is the main view of hydraulic system provided by the embodiment of the utility model；
Fig. 3 is the top view of hydraulic system provided by the embodiment of the utility model；
Fig. 4 is the structural schematic diagram of the valve plate of hydraulic system provided by the embodiment of the utility model.
Icon：100- fuel tank；200- electric operating system；300- manual operation system；400- valve plate；500- air is exhaled
Haustorium；600- operating cylinder；700- pipeline explosion-proof valve；201- hydraulic pump；202- motor；203- the second hydraulic system fuel feed pump；
204- check valve；205- trimmer valve；206- overflow valve；207- solenoid valve；208- flow control valve；The second filter of 209-；
301- manual pump；302- the first hydraulic system fuel feed pump；303- first filter.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
In the description of the present invention, it should be noted that such as occur term " center ", "upper", "lower", " left side ",
The orientation or positional relationship of the instructions such as " right side ", "vertical", "horizontal", "inner", "outside" is orientation based on the figure or position
Relationship is merely for convenience of describing the present invention and simplifying the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.This
Outside, such as there is term " first ", " second ", " third " are used for description purposes only, be not understood to indicate or imply relatively heavy
The property wanted.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, such as there is term
" installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or one
Connect to body；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be indirect by intermediary
It is connected, can be the connection inside two elements.For the ordinary skill in the art, on being understood with concrete condition
State the concrete meaning of term in the present invention.
The utility model provides a kind of hydraulic system, the hydraulic system include fuel tank 100, electric operating system 200,
Manual operation system 300 and valve plate 400；The valve plate 400 is connected to the top of the fuel tank 100, the electric operating system
200 one end is connect with fuel tank 100, and the other end of the electric operating system 200 passes through valve plate 400 and operating cylinder 600
Connection, one end of the manual operation system 300 are connect with fuel tank 100, and the other end of the manual operation system 300 passes through valve
Plate 400 is connect with operating cylinder 600；The manual operation system 300 includes manual pump 301 and the first hydraulic system fuel feed pump
302, one end of the first hydraulic system fuel feed pump 302 is connect with fuel tank 100, the first hydraulic system fuel feed pump 302
The other end is connect with operating cylinder 600, and the manual pump 301 is connected on the first hydraulic system fuel feed pump 302, so that liquid
Pressure oil is flowed into the operating cylinder 600 under the action of manual pump 301 by fuel tank 100.
As shown in Figs 1-4, hydraulic system provided by the utility model, the valve plate 400 are located at fuel tank 100 and operating cylinder
Between 600, the lower end of the electric operating system 200 is connect with fuel tank 100, and the upper end of the electric operating system 200 passes through
Valve plate 400 is connect with operating cylinder 600, in normal operation, using electric operating system 200, is realized in fuel tank 100
Oil be drawn into operating cylinder 600, guarantee operating cylinder 600 work well；The lower end of the manual operation system 300 with
Fuel tank 100 connects, and the upper end of manual operation system 300 passes through valve plate 400 and connect with operating cylinder 600, in off-position, makes
With manual operation manual operation system 300, the normal use of hydraulic system in the power-off state is realized；First hydraulic system
The lower end of fuel feed pump 302 is connect with fuel tank 100, and the manual pump 301 is connected on the first hydraulic system fuel feed pump 302, described
The upper end of first hydraulic system fuel feed pump 302 is connect with operating cylinder 600, by the way that manual pump 301 is manually operated, realizes fuel tank
Oil in 100 reaches in operating cylinder 600 from fuel tank 100, guarantees hydraulic system in off-position and normal power supply state
To continue to use.
Further, the manual operation system 300 further includes first filter 303；The first filter 303 connects
In one end that the first hydraulic system fuel feed pump 302 is connect with fuel tank 100.
As shown in Figure 1 and Figure 4, the first filter 303 is connected to the first hydraulic system fuel feed pump 302 and fuel tank 100
One end of connection can be filtered the oil being drawn into the first hydraulic system fuel feed pump 302 from fuel tank 100, guarantee to enter
The degree of purity of hydraulic oil in operating cylinder 600.
Further, the electric operating system 200 includes hydraulic pump 201, motor 202, the second hydraulic system fuel feed pump
203 and check valve 204；One end of the hydraulic pump 201 is connect with fuel tank 100, the other end and motor of the hydraulic pump 201
202 connections, the hydraulic pump 201 is connect by the second hydraulic system fuel feed pump 203 with operating cylinder 600, so that described hydraulic
Described in hydraulic oil in fuel tank 100 is drawn under the action of motor 202 by the second hydraulic system fuel feed pump 203 by pump 201
In operating cylinder 600；The check valve 204 is connected on the second hydraulic system fuel feed pump 203.
As shown in Figure 1, the bottom end of the hydraulic pump 201 is connect with fuel tank 100, the upper end of the hydraulic pump 201 passes through connection
Axis device is connect with motor 202, and the hydraulic pump 201 is connect by the second hydraulic system fuel feed pump 203 with operating cylinder 600, is needed
When using electric operating system 200, start motor 202, hydraulic pump 201 is hydraulic by second by the hydraulic oil in fuel tank 100
System fuel feed pump 203 is drawn into operating cylinder 600, so that machine rises；The check valve 204 is connected to the second hydraulic system
On fuel feed pump 203,204 permission hydraulic oil of check valve are flowed into the operating cylinder 600 from hydraulic pump 201, are guaranteed hydraulic
Oil will not be flow backwards, and guarantee that 600 pressure of operating cylinder will not decline.
Further, the electric operating system 200 further includes trimmer valve 205；The trimmer valve 205 is connected to described
Between two hydraulic system fuel feed pumps 203 and fuel tank 100.
As shown in Figure 1 and Figure 4, the trimmer valve 205 be connected to the second hydraulic system fuel feed pump 203 and fuel tank 100 it
Between, the trimmer valve 205 plays the role of protecting hydraulic pump 201 and motor 202, can help hydraulic system that air is discharged, and protects
The normal work for demonstrate,proving hydraulic system, avoids the occurrence of peril.
Further, the electric operating system 200 further includes the overflow valve 206 for adjusting hydraulic system pressure；It is described to overflow
Stream valve 206 is connected between the second hydraulic system fuel feed pump 203 and fuel tank 100.
As shown in Figure 1 and Figure 4, the overflow valve 206 is connected to the second hydraulic system fuel feed pump 203 and fuel tank 100
Between, it, to adjust the oil pressure relief in hydraulic system, can be prevented due to operating pressure mistake by manually adjusting overflow valve 206
Damage hydraulic pump 201 and motor 202 greatly.
Further, the electric operating system 200 further includes the solenoid valve 207 for controlling hydraulic system off-load；The electricity
Magnet valve 207 is connected between the second hydraulic system fuel feed pump 203 and fuel tank 100.
As shown in Figure 1 and Figure 4, the solenoid valve 207 is connected to the second hydraulic system fuel feed pump 203 and fuel tank 100
Between, after solenoid valve 207 is powered, hydraulic system off-load, hydraulic oil returns to fuel tank 100, lifting machine decline from operating cylinder 600.
Further, the electric operating system 200 further includes the flow control valve 208 for adjusting hydraulic fluid flow rate；It is described
Flow control valve 208 is connected between the solenoid valve 207 and fuel tank 100.
As shown in Figure 1 and Figure 4, the flow control valve 208 is connected between the solenoid valve 207 and fuel tank 100, institute
It states that flow control valve 208 is manually adjustable, controls the decrease speed of lifting machine.
Further, the electric operating system 200 further includes the second filter 209；Second filter 209 connects
Between the hydraulic pump 201 and fuel tank 100.
As shown in Figure 1, second filter 209 is connected between hydraulic pump 201 and fuel tank 100, second filtering
Device 209 can be filtered the oil being drawn into the second hydraulic system fuel feed pump 203 from fuel tank 100, guarantee to enter working oil
The degree of purity of hydraulic oil in cylinder 600.
It further, further include air respiratorresuscitator 500 and pipeline explosion-proof valve 700；The air respiratorresuscitator 500 is connected to institute
It states on fuel tank 100, the pipeline explosion-proof valve 700 is connected at the oil inlet of operating cylinder 600.
As shown in Figure 1, the air respiratorresuscitator 500 is connected on fuel tank 100, guarantee hydraulic system inside and outside air
Circulation, enable hydraulic pump 201 work normally, draw oil；The pipeline explosion-proof valve 700 is connected to operating cylinder 600
Input end, guarantee hydraulic oil from fuel tank 100 enter operating cylinder 600 during safety, avoid the generation of accident.
Specifically, hydraulic system when in use, when normal power-up, using electric operating system 200, starts motor 202,
Hydraulic oil in fuel tank 100 drives hydraulic pump 201 to draw after the filtering of the second filter 209, by motor 202 by shaft coupling,
Hydraulic oil is entered in operating cylinder 600 by check valve 204 by the second hydraulic system fuel feed pump 203, so that on lifting machine
It rises, when lifting machine being needed to decline, solenoid valve 207 is opened, and hydraulic oil is flow back into fuel tank 100 from operating cylinder 600, lifting machine
Decline；When power is off, using manual operation system 300, start manual pump 301, the hydraulic oil in fuel tank 100 is through first filter
After 303 filterings, drawn through the dynamic pump 301 of remarkable manipulator, so that hydraulic oil enters work from the first hydraulic system fuel feed pump 302
Make the rising for realizing lifting machine in oil cylinder 600, when lifting machine being needed to decline, manually adjusts the spool of solenoid valve 207, liquid
Pressure oil is flow back into fuel tank 100 from operating cylinder 600, lifting machine decline；It realizes under power-off and normal power-up state, hydraulic pressure system
The normal work of system.
The utility model additionally provides a kind of lifting machine, and the lifting machine includes operating cylinder 600 and liquid as described above
Pressure system；The hydraulic system is connect with operating cylinder 600.
Lifting machine provided by the utility model, the hydraulic system are connect with operating cylinder 600, so that lifting machine is powering off
It can be used under state and normal power supply state, the convenient maintenance to vehicle.
Finally it should be noted that：The above various embodiments is only to illustrate the technical solution of the utility model, rather than limits it
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand：It is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (10)
1. a kind of hydraulic system, which is characterized in that including fuel tank, electric operating system, manual operation system and valve plate；
The valve plate is connected to the top of the fuel tank, and one end of the electric operating system is connect with fuel tank, the electronic behaviour
The other end for making system passes through valve plate and connect with operating cylinder, and one end of the manual operation system is connect with fuel tank, the hand
The other end of dynamic operating system passes through valve plate and connect with operating cylinder；
The manual operation system includes manual pump and the first hydraulic system fuel feed pump, and the one of the first hydraulic system fuel feed pump
End is connect with fuel tank, and the other end of the first hydraulic system fuel feed pump is connect with operating cylinder, and the manual pump is connected to institute
It states on the first hydraulic system fuel feed pump, so that hydraulic oil is flowed into the operating cylinder under the action of manual pump by fuel tank.
2. hydraulic system according to claim 1, which is characterized in that the manual operation system further includes the first filtering
Device；
The first filter is connected to one end that the first hydraulic system fuel feed pump is connect with fuel tank.
3. hydraulic system according to claim 2, which is characterized in that the electric operating system include hydraulic pump, motor,
Second hydraulic system fuel feed pump and check valve；
One end of the hydraulic pump is connect with fuel tank, and the other end of the hydraulic pump is connected to motor, and the hydraulic pump passes through the
Two hydraulic system fuel feed pumps are connect with operating cylinder, so that the hydraulic pump is supplied under the action of motor by the second hydraulic system
Hydraulic oil in fuel tank is sucked into the operating cylinder by oil pipe；
The check valve is connected on the second hydraulic system fuel feed pump.
4. hydraulic system according to claim 3, which is characterized in that the electric operating system further includes trimmer valve；
The trimmer valve is connected between the second hydraulic system fuel feed pump and fuel tank.
5. hydraulic system according to claim 4, which is characterized in that the electric operating system further includes adjusting hydraulic pressure system
The overflow valve for pressure of uniting；
The overflow valve is connected between the second hydraulic system fuel feed pump and fuel tank.
6. hydraulic system according to claim 5, which is characterized in that the electric operating system further includes control hydraulic pressure system
The solenoid valve of system off-load；
The solenoid valve is connected between the second hydraulic system fuel feed pump and fuel tank.
7. hydraulic system according to claim 6, which is characterized in that the electric operating system further includes adjusting hydraulic oil
The flow control valve of flow；
The flow control valve is connected between the solenoid valve and fuel tank.
8. hydraulic system according to claim 7, which is characterized in that the electric operating system further includes the second filtering
Device；
Second filter is connected between the hydraulic pump and fuel tank.
9. hydraulic system according to claim 8, which is characterized in that further include air respiratorresuscitator and pipeline explosion-proof valve；
The air respiratorresuscitator is connected on the fuel tank, and the pipeline explosion-proof valve is connected at the oil inlet of operating cylinder.
10. a kind of lifting machine, which is characterized in that including operating cylinder and hydraulic pressure system as claimed in any one of claims 1-9 wherein
System；
The hydraulic system is connect with operating cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820680288.5U CN208138226U (en) | 2018-05-08 | 2018-05-08 | Hydraulic system and lifting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820680288.5U CN208138226U (en) | 2018-05-08 | 2018-05-08 | Hydraulic system and lifting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208138226U true CN208138226U (en) | 2018-11-23 |
Family
ID=64313158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820680288.5U Expired - Fee Related CN208138226U (en) | 2018-05-08 | 2018-05-08 | Hydraulic system and lifting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208138226U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443249A (en) * | 2018-05-08 | 2018-08-24 | 苏州艾沃意特机械设备制造有限公司 | Hydraulic system and lifting machine |
-
2018
- 2018-05-08 CN CN201820680288.5U patent/CN208138226U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443249A (en) * | 2018-05-08 | 2018-08-24 | 苏州艾沃意特机械设备制造有限公司 | Hydraulic system and lifting machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 1089 Yunlian North Road, Wujiang Economic and Technological Development Zone, Suzhou City, Jiangsu Province Patentee after: SUZHOU EAE AUTOMOTIVE EQUIPMENT Co.,Ltd. Address before: No. 1089 Yunlian North Road, Wujiang Economic Development Zone, Suzhou City, Jiangsu Province Patentee before: EVER-ETERNAL AUTOMOTIVE EQUIPMENT CO.,LTD. |
|
| 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: 20181123 |