CN208252331U - A kind of hydraulic pump installing structure - Google Patents
A kind of hydraulic pump installing structure Download PDFInfo
- Publication number
- CN208252331U CN208252331U CN201820771889.7U CN201820771889U CN208252331U CN 208252331 U CN208252331 U CN 208252331U CN 201820771889 U CN201820771889 U CN 201820771889U CN 208252331 U CN208252331 U CN 208252331U
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- China
- Prior art keywords
- hydraulic pump
- chip microcontroller
- connecting plate
- fan
- cabinet
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Abstract
The utility model provides a kind of hydraulic pump installing structure, is related to technical field of hydraulic pressure.Including the cabinet for placing hydraulic pump, cabinet includes pedestal, side wall, top cover and switch gate；Side wall includes that interior plate and outer panel are constituted, and cavity is equipped between interior plate and outer panel, is equipped with heat-barrier material in cavity；Box house is equipped with temperature sensor, humidity sensor, dehumidifier, fan, control room and refrigerating plant；Wireless communication apparatus, single-chip microcontroller, control of Fan Motor circuit and dehumidifier control circuit are equipped in control room, control of Fan Motor circuit is connect with single-chip microcontroller and temperature sensor respectively, and dehumidifier control circuit is connect with single-chip microcontroller and humidity sensor respectively；The side of side wall is equipped with air inlet, and the other side is equipped with air outlet, and resetting apparatus is equipped between switch gate and adjacent side wall, and resetting apparatus is closed for driving switch door；This structure can reduce the intracorporal temperature and humidity of case, guarantee that hydraulic pump is in the working environment of suitable temperature and humidity.
Description
Technical field
This application involves technical field of hydraulic pressure more particularly to a kind of hydraulic pump installing structures.
Background technique
Hydraulic pump is frequently applied in various environment as a kind of power original part.In practical application, when hydraulic pump by with
When into moist environment, the moisture of surrounding expands with heat and contract with cold, and droplet can be formed outside the shell of hydraulic pump, droplet can be along hydraulic pump
The gap of shell enters inside casing of hydraulic pump, may penetrate into the fuel tank of hydraulic pump, pollutes hydraulic oil, and then influence
It is driven effect；When the use environment temperature of hydraulic pump is higher, oil sealing plug in hydraulic pump can be made to soften, or even occur melting existing
As if handling not in time, will seriously affect the normal work of hydraulic pump to cause hydraulic oil seepage.Therefore, it is necessary to give foot
Enough attention.Meanwhile hydraulic pump volume is larger, weight is big, transports time-consuming and laborious.
Utility model content
This application provides a kind of hydraulic pump installing structures, to solve the high temperature that hydraulic pump in the prior art receives working environment
With moist influence the problem of influence the normal operating conditions of hydraulic pump.
The utility model embodiment provides a kind of hydraulic pump installing structure, described including the cabinet for placing hydraulic pump
Cabinet includes pedestal, side wall, top cover and switch gate；
The pedestal is equipped with folding pedestal support frame, and the pedestal support frame includes the first support shaft and second
It supports axis, first support shaft and the second support shaft to be rotatablely connected by shaft, the pedestal support frame is made of waterproof material；
The side wall includes that interior plate and outer panel are constituted, and cavity, the sky are equipped between the interior plate and outer panel
Intracavitary to be equipped with heat-barrier material, the outer panel is coated with radiating and cooling material far from the side of the cavity, the interior plate and outer
Side plate is bolted；The top cover is equipped with radiating and cooling coating；
The box house is equipped with temperature sensor, humidity sensor, dehumidifier, fan, control room and refrigerating plant；
Wireless communication apparatus, single-chip microcontroller, control of Fan Motor circuit and dehumidifier control circuit are equipped in the control room,
The control of Fan Motor circuit is connect with single-chip microcontroller and temperature sensor signal respectively, the dehumidifier control circuit respectively with
Single-chip microcontroller is connected with humidity sensor signal；
The temperature sensor is used to incude the temperature of cabinet, and the temperature of induction is transferred to single-chip microcontroller, the single-chip microcontroller
For controlling the working condition of fan according to the received temperature of temperature sensor；The humidity sensor is for incuding cabinet
The humidity of induction is transferred to single-chip microcontroller by humidity, and the single-chip microcontroller is for controlling pumping according to the received temperature of humidity sensor
The working condition of wet device；
The top cover is equipped with solar panel, and the solar panel is connect with battery, and the battery is
The fan power supply；
The side of the side wall is equipped with air inlet, and it further includes blower that the other side, which is equipped with air outlet, and the blower is that setting exists
The exhaust fan of the air inlet, or for the exhaust blower at the air outlet is arranged in；The blower and the single-chip microcomputer signal
Connection；
Blinds is equipped at the air inlet and the air outlet, the single-chip microcontroller controls while controlling blower rotation
The blinds is opened；
The single-chip microcontroller includes regulation button, and the regulation button includes the selection gear of multiple and different rotation speed of the fan；
The refrigerating plant includes compressor, condenser and evaporator, and the compressor, condenser and evaporator successively connect
It connects, the air-flow that when fan work generates blows over the evaporator；
Resetting apparatus is equipped between the switch gate and adjacent side wall, the resetting apparatus is for driving the switch gate
Closure；
The cabinet inner bottom plating is equipped with hydraulic pump mounting groove and prime mover mounting groove, and hydraulic pump mounting groove side is set
There are belt wheel or gear mounting groove；
The switch gate is equipped with electromagnetic lock, is equipped with conduit through bore on the side wall.
Optionally, the resetting apparatus includes the first connecting plate, the second connecting plate, spring and shaft, first connection
Plate and second connecting plate are hinged with the shaft respectively；
The spring pocket is in the shaft, and one end of the spring is fixed on first connecting plate, and the other end is solid
It is scheduled on second connecting plate；
Mounting hole is provided on first connecting plate and second connecting plate；
First connecting plate is equipped with clip-connecting rod, and second connecting plate is equipped with the card being adapted with the clip-connecting rod
Slot；
It further include support rod, one end of the support rod is equipped with the first hook mounted with the clip-connecting rod, and the other end is set
There is the second hook with card slot mounting.
Optionally, the switch gate lateral wall is equipped with nameplate placing frame.
Optionally, the switch gate is equipped with observation window, and the observation window is equipped with implosion guard.
Optionally, the evaporator is aluminium flat conduit evaporator.
Optionally, the inner sidewall of the cabinet is equipped with water absorption layer.
Optionally, the bottom of the pedestal is equipped with universal wheel, and the universal wheel is equipped with brake apparatus.
The prior art is compared, the utility model has the beneficial effects that:
1, in the utility model include cabinet for placing hydraulic pump, cabinet includes pedestal, side wall, top cover and switch
Door；Cabinet includes that interior plate and outer panel are constituted, and cavity is equipped between interior plate and outer panel, is equipped with heat-barrier material in cavity,
Outer panel is coated with radiating and cooling material far from the side of cavity, and interior plate and outer panel are bolted；Top cover, which is equipped with, to be dissipated
Heat drop thermo-paint；Heat-insulated effect can be effectively played.Box house is equipped with temperature sensor, humidity sensor, dehumidifier, wind
Fan, control room and refrigerating plant；Wireless communication apparatus, single-chip microcontroller, control of Fan Motor circuit and dehumidifier are equipped in control room
Control circuit, control of Fan Motor circuit are connect with single-chip microcontroller and temperature sensor signal respectively, dehumidifier control circuit difference
It is connect with single-chip microcontroller and humidity sensor signal；Temperature sensor is used to incude the temperature of cabinet, and the temperature of induction is transferred to
Single-chip microcontroller, single-chip microcontroller can be used in the working condition that fan is controlled according to the received temperature of temperature sensor；Humidity sensor
For incuding the humidity of cabinet, the humidity of induction is transferred to single-chip microcontroller, single-chip microcontroller can be used in receiving according to humidity sensor
Temperature control the working condition of dehumidifier.The side of side wall is equipped with air inlet, and it further includes wind that the other side, which is equipped with air outlet,
Machine, blower are the exhaust fan that air inlet is arranged in, or for the exhaust blower at air outlet is arranged in；Blower and single-chip microcomputer signal connect
It connects；Blinds is equipped at air inlet and air outlet, control blinds is opened while single-chip microcontroller controls blower rotation；Single-chip microcontroller includes adjusting
Button is saved, regulation button includes the selection gear of multiple and different rotation speed of the fan；Refrigerating plant includes compressor, condenser and evaporation
Device, compressor, condenser and evaporator are sequentially connected, and the air-flow that when fan work generates blows over evaporator；Refrigerating plant is set
It sets and can reduce the intracorporal temperature of case, guarantee that hydraulic pump is in the working environment for being suitable for.
2, top cover is equipped with solar panel in the utility model, and solar panel is connect with battery, battery
It can be convenient for powering for fan.
3, resetting apparatus is equipped in the utility model between switch gate and adjacent side wall, resetting apparatus can be used in driving
Switch gate closure；Reduce the intracorporal temperature change of case, guarantees that hydraulic pump is in the temperature environment for being suitable for.
4, switch gate lateral wall is equipped with nameplate placing frame in the utility model, can be used in the intracorporal hydraulic pump of placing box
Nameplate, convenient for distinguish the intracorporal hydraulic pump of case model.
5, switch gate is equipped with observation window in the utility model, and observation window is equipped with implosion guard, can be convenient for observation case
The working condition of internal hydraulic pump.
6, the inner sidewall of cabinet is equipped with water absorption layer in the utility model, is capable of the condensed water of absorption casing inner sidewall, reduces
The intracorporal humidity of case.
7, the bottom of the utility model in the base is equipped with universal wheel, and universal wheel is equipped with brake apparatus, can be convenient for cabinet
Transport.
Detailed description of the invention
To be illustrated more clearly that background technique or the technical solution of the utility model, below to the prior art or specific implementation
The attached drawing being used in combination in mode is briefly described；It should be evident that the attached drawing below in conjunction with specific embodiment is only to use
The utility model embodiment is understood in facilitating, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings；
Fig. 1 is overall structure diagram provided by the embodiment of the utility model；
Fig. 2 is the structural schematic diagram of side wall provided by the embodiment of the utility model；
Fig. 3 is the structural schematic diagram of resetting apparatus provided by the embodiment of the utility model；
Wherein: 1- pedestal, 2- side wall, 3- top cover, 4- switch gate, the first support shaft of 5-, the second support shaft of 6-, the inside 7-
Plate, 8- outer panel, 9- heat-barrier material, 10- radiating and cooling material, 11- temperature sensor, 12- humidity sensor, 13- dehumidifier,
14- fan, 15- control room, 16- solar panel, 17- air inlet, 18- air outlet, 19- compressor, 20- condenser, 21-
Evaporator, 22- resetting apparatus, the first connecting plate of 23-, the second connecting plate of 24-, 25- spring, 26- shaft, 27- mounting hole, 28-
Clip-connecting rod, 29- card slot, 30- support rod, 31- first are linked up with, 32- observation window, 33- universal wheel, 34- hydraulic pump mounting groove, 35-
Prime mover mounting groove, 36- belt wheel or gear mounting groove, 37- electromagnetic lock, 38- conduit through bore.
Specific embodiment
In order to make those skilled in the art more fully understand the technical solution in the utility model, below in conjunction with this reality
With the attached drawing in new embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that
The described embodiments are only a part of the embodiments of the utility model, instead of all the embodiments.Based on the utility model
In embodiment, every other implementation obtained by those of ordinary skill in the art without making creative efforts
The range of the utility model protection all should belong in example.The inner sidewall of cabinet is equipped with water absorption layer, is capable of absorption casing inner sidewall
Condensed water reduces the intracorporal humidity of case.
Hydraulic pump installing structure provided by the embodiment of the utility model, including the cabinet for placing hydraulic pump, hydraulic pump
It is placed in the cavity of cabinet, cabinet includes pedestal 1, side wall 2, top cover 3 and switch gate 4.
Fig. 1 is overall structure diagram provided by the embodiment of the utility model；As shown in Figure 1, pedestal 1 is equipped with foldable
Pedestal support frame, pedestal support frame includes the first support shaft 5 and the second support shaft 6, the first support shaft 5 and the second support shaft 6
It is rotatablely connected by shaft, pedestal support frame is made of waterproof material.
When cabinet is suitably positioned, the second support shaft 6 is rotated along shaft, so that the first support shaft 5 and second
Support shaft 6 is on same straight line, and in the present embodiment, the bottom of the second support shaft 6 is equipped with anti-slip layer, is capable of increasing and ground
Frictional force, increase the shelf-stability of cabinet.
Fig. 2 is the structural schematic diagram of side wall provided by the embodiment of the utility model；As shown in Fig. 2, side wall 2 includes interior plate
7 and outer panel 8 constitute, cavity is equipped between interior plate 7 and outer panel 8, heat-barrier material 9 is equipped in cavity, outer panel is far from empty
The side of chamber is coated with radiating and cooling material 10, and interior plate 7 and outer panel 8 are bolted and (are not drawn into bolt in Fig. 2), top cover
3 are equipped with radiating and cooling coating.
In the present embodiment, side wall uses the structure setting of interior plate 7 and outer panel 8, is capable of increasing the heat-insulated effect of side wall 2
Fruit reduces the absorption of spin manifold temperature, guarantees that the temperature of box house is in suitable temperature value.
Fig. 1 is please referred to, box house is equipped with temperature sensor 11, humidity sensor 12, dehumidifier 13, fan 14, control
Room 15 and refrigerating plant.
Wireless communication apparatus, single-chip microcontroller, control of Fan Motor circuit and dehumidifier control circuit, wind are equipped in control room 15
Fan circuit for controlling motor is connect with single-chip microcontroller and temperature sensor signal respectively, dehumidifier control circuit respectively with single-chip microcontroller and wet
Spend sensor signal connection.
Temperature sensor 11 can be used in incuding the temperature of cabinet, the temperature of induction is transferred to single-chip microcontroller, single-chip microcontroller is used
In the working condition for controlling fan 14 according to the received temperature of temperature sensor 11；Humidity sensor 12 you can be used in incuding
The humidity of induction is transferred to single-chip microcontroller by the humidity of cabinet, and single-chip microcontroller according to the received temperature of humidity sensor 12 for controlling
The working condition of dehumidifier 13 processed.
Top cover 3 is equipped with solar panel 16, and solar panel 16 is connect with battery, and battery can be fan
14 power supplies.
The side of side wall 2 is equipped with air inlet 17, and it further includes blower that the other side, which is equipped with air outlet 18, blower be setting into
Exhaust fan at air port 17, or for the exhaust blower at air outlet 18 is arranged in；Blower is connect with single-chip microcomputer signal, and single-chip microcontroller can be with
Control the working condition of blower.
It is equipped with blinds (being not drawn into Fig. 1) at air inlet 17 and air outlet 18, single-chip microcontroller control blower is controlled while rotation
Blinds processed is opened, and the setting of blinds can prevent the sundries in air from entering box house.
Single-chip microcontroller includes regulation button, and regulation button includes the selection gear of multiple and different rotation speed of the fan；In practical application,
Multiple temperature preset values can be set for temperature sensor 11, when the received temperature of temperature sensor 11 reaches higher default temperature
When angle value, single-chip microcontroller reaches higher tachometer value according to the received temperature of temperature sensor 11 to control the revolving speed of fan 14；When
When the received temperature of temperature sensor 11 reaches lower preset temperature value, single-chip microcontroller is according to the received temperature of temperature sensor 11
Reach lower tachometer value to control the revolving speed of fan 14, can play the role of reducing energy consumption.
Refrigerating plant includes compressor 19, condenser 20 and evaporator 21, compressor 19, condenser 20 and evaporator 21 according to
Secondary connection, the air-flow that fan 14 generates when working blow over evaporator 21.Evaporator 21 is aluminium flat conduit evaporator in the present embodiment.
Resetting apparatus 22 is equipped between switch gate 4 and adjacent side wall 2, resetting apparatus 22 is closed for driving switch door 4,
The setting of resetting apparatus 22 can guarantee that switch gate 4 can spring back closing, reduce the influence to case body temperature.
Cabinet inner bottom plating is equipped with hydraulic pump mounting groove 34 and prime mover mounting groove 35, and 34 side of hydraulic pump mounting groove is equipped with
Belt wheel or gear mounting groove 36 can prevent hydraulic pump, prime mover and belt wheel or gear convenient for fixation.
Switch gate 4 is equipped with electromagnetic lock 37, can guarantee when switch gate is closed in locking state.It is equipped on side wall 2
Conduit through bore 38 is extend out to outside cabinet convenient for the oil pipe of hydraulic pump by through-hole 38.
Fig. 3 is the structural schematic diagram of resetting apparatus provided by the embodiment of the utility model；As shown in figure 3, resetting apparatus 22
Including the first connecting plate 23, the second connecting plate 24, spring 25 and shaft 26, the first connecting plate 23 and the second connecting plate 24 respectively with
Shaft 26 is hinged.25 sets of spring in shaft 26, one end of spring 25 is fixed on the first connecting plate 23, and the other end is fixed on
On two connecting plates 24.
Mounting hole 27 is provided on first connecting plate 23 and the second connecting plate 24；First connecting plate 23 is equipped with clip-connecting rod
28, the second connecting plate 24 is equipped with the card slot 29 being adapted with clip-connecting rod 28.
It further include support rod 30, one end of support rod 30 is equipped with the first hook 31 mounted with clip-connecting rod 28, and the other end is set
There is the second hook mounted with card slot 29.
4 lateral wall of switch gate is equipped with nameplate placing frame, can be used in the nameplate of the intracorporal hydraulic pump of placing box, is convenient for area
The model of the intracorporal hydraulic pump of branch mailbox.Switch gate 4 is equipped with observation window 32, and observation window 32 is equipped with implosion guard.
The bottom of pedestal 1 is equipped with universal wheel 33, and universal wheel 33 is equipped with brake apparatus, and universal wheel is equipped with brake apparatus,
It can be convenient for the transport of cabinet.In the present embodiment, the cover degree of universal wheel 33 is less than the height after pedestal support frame struts, this reality
It applies in example, handrail can be set on the side wall 2, after pedestal support frame folds, universal wheel 33 lands, and can be pushed away with manumotive armrest
Dynamic cabinet is mobile, convenient for the transport of hydraulic pump.
The hydraulic pump installing structure in the utility model embodiment is described in detail above.This part is using specific
Embodiment is expounded the principles of the present invention and embodiment, and the above embodiments are only used to help understand
The core concept of the utility model, in the case where not departing from the utility model principle, those of ordinary skill in the art are not having
Every other embodiment obtained under the premise of creative work is made, is fallen within the protection scope of the utility model.
Claims (7)
1. a kind of hydraulic pump installing structure, it is characterised in that:
Including the cabinet for placing hydraulic pump, the cabinet includes pedestal (1), side wall (2), top cover (3) and switch gate (4)；
The pedestal (1) is equipped with folding pedestal support frame, and the pedestal support frame includes the first support shaft (5) and second
Support shaft (6), first support shaft (5) and the second support shaft (6) are rotatablely connected by shaft, and the pedestal support frame is by preventing
Water material is made；
The side wall includes that interior plate (7) and outer panel (8) are constituted, and sky is equipped between the interior plate (7) and outer panel (8)
Chamber, the cavity is interior to be equipped with heat-barrier material (9), and the outer panel is coated with radiating and cooling material far from the side of the cavity
(10), the interior plate (7) and outer panel (8) are bolted；The top cover (3) is equipped with radiating and cooling coating；
The box house is equipped with temperature sensor (11), humidity sensor (12), dehumidifier (13), fan (14), control room
(15) and refrigerating plant；
Wireless communication apparatus, single-chip microcontroller, control of Fan Motor circuit and dehumidifier control circuit are equipped in the control room (15),
The control of Fan Motor circuit is connect with single-chip microcontroller and temperature sensor signal respectively, the dehumidifier control circuit respectively with
Single-chip microcontroller is connected with humidity sensor signal；
The temperature sensor (11) is used to incude the temperature of cabinet, and the temperature of induction is transferred to single-chip microcontroller, the single-chip microcontroller
For controlling the working condition of fan (14) according to temperature sensor (11) received temperature；The humidity sensor (12) is used
In the humidity of induction cabinet, the humidity of induction is transferred to single-chip microcontroller, the single-chip microcontroller according to humidity sensor (12) for connecing
The temperature of receipts controls the working conditions of dehumidifier (13)；
The top cover (3) is equipped with solar panel (16), and the solar panel (16) connect with battery, the storage
Battery is the fan (14) power supply；
The side of the side wall (2) is equipped with air inlet (17), and it further includes blower that the other side, which is equipped with air outlet (18), the blower
For the exhaust fan being arranged at the air inlet (17), or the exhaust blower to be arranged at the air outlet (18)；The blower
It is connect with the single-chip microcomputer signal；
Blinds is equipped at the air inlet (17) and the air outlet (18), while the single-chip microcontroller controls blower rotation
The blinds is controlled to open；
The single-chip microcontroller includes regulation button, and the regulation button includes the selection gear of multiple and different rotation speed of the fan；
The refrigerating plant includes compressor (19), condenser (20) and evaporator (21), the compressor (19), condenser
(20) it is sequentially connected with evaporator (21), the air-flow that the fan (14) generates when working blows over the evaporator (21)；
Resetting apparatus (22) are equipped between the switch gate (4) and adjacent side wall (2), the resetting apparatus (22) is for driving
Switch gate (4) closure；
The cabinet inner bottom plating is equipped with hydraulic pump mounting groove (34) and prime mover mounting groove (35), the hydraulic pump mounting groove
(34) side is equipped with belt wheel or gear mounting groove (36)；
The switch gate (4) is equipped with electromagnetic lock (37)；Conduit through bore (38) are equipped on the side wall (2).
2. hydraulic pump installing structure according to claim 1, it is characterised in that:
The resetting apparatus (22) includes the first connecting plate (23), the second connecting plate (24), spring (25) and shaft (26), described
First connecting plate (23) and second connecting plate (24) are hinged with the shaft (26) respectively；
The spring (25) covers on the shaft (26), and one end of the spring (25) is fixed on first connecting plate (23)
On, the other end is fixed on second connecting plate (24)；
Mounting hole (27) are provided on first connecting plate (23) and second connecting plate (24)；
First connecting plate (23) is equipped with clip-connecting rod (28), and second connecting plate (24) is equipped with and the clip-connecting rod
(28) adaptable card slot (29)；
It further include support rod (30), one end of the support rod (30) is equipped with the first hook mounted with the clip-connecting rod (28)
(31), the other end is equipped with the second hook mounted with the card slot (29).
3. hydraulic pump installing structure according to claim 2, it is characterised in that:
Switch gate (4) lateral wall is equipped with nameplate placing frame.
4. hydraulic pump installing structure according to claim 3, it is characterised in that:
The switch gate (4) is equipped with observation window (32), and the observation window (32) is equipped with implosion guard.
5. hydraulic pump installing structure according to claim 4, it is characterised in that:
The evaporator (21) is aluminium flat conduit evaporator.
6. hydraulic pump installing structure according to claim 5, it is characterised in that:
The inner sidewall of the cabinet is equipped with water absorption layer.
7. hydraulic pump installing structure according to claim 6, it is characterised in that:
The bottom of the pedestal (1) is equipped with universal wheel (33), and the universal wheel (33) is equipped with brake apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820771889.7U CN208252331U (en) | 2018-05-22 | 2018-05-22 | A kind of hydraulic pump installing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820771889.7U CN208252331U (en) | 2018-05-22 | 2018-05-22 | A kind of hydraulic pump installing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208252331U true CN208252331U (en) | 2018-12-18 |
Family
ID=66481070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820771889.7U Expired - Fee Related CN208252331U (en) | 2018-05-22 | 2018-05-22 | A kind of hydraulic pump installing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208252331U (en) |
-
2018
- 2018-05-22 CN CN201820771889.7U patent/CN208252331U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20181218 Termination date: 20210522 |
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| CF01 | Termination of patent right due to non-payment of annual fee |