CN204309289U - A kind of novel precision formula oil equipment - Google Patents
A kind of novel precision formula oil equipment Download PDFInfo
- Publication number
- CN204309289U CN204309289U CN201420695886.1U CN201420695886U CN204309289U CN 204309289 U CN204309289 U CN 204309289U CN 201420695886 U CN201420695886 U CN 201420695886U CN 204309289 U CN204309289 U CN 204309289U
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- fuel
- drive sleeve
- displaced cylinder
- formula oil
- oil equipment
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Abstract
The utility model discloses a kind of novel precision formula oil equipment, comprise bracing frame, shell, plug-in mounting fuel-displaced cylinder in the enclosure, piston, and for the drive unit of driven plunger, the top of shell is provided with feed hopper, the bottom of shell is formed with oil-out, the front portion of fuel-displaced cylinder is connected with the cover that closes up, one end of closing in cover is for amplifying end, the other end is for reducing end, amplify end to be connected with fuel-displaced cylinder, reduce on end and be formed with discharging opening, close up in overlapping and be fitted with the garment bag be made up of elastomeric material, the rear end of garment bag and the front end of fuel-displaced cylinder socket-connect, the front end of garment bag is connected with multiple lobe ring, the edge of every adjacent petals ring is overlapped, each lobe ring is provided with adjusting device.The utility model significantly can reduce cost of manufacture and the maintenance cost of novel precision formula oil equipment, and the slag charge uninterrupted flowing through discharging opening can adjust according to practical operation situation, can extrude the propelling dynamics of oil expression by control piston very accurately.
Description
Technical field
The utility model belongs to a kind of oil equipment, is specifically related to a kind of novel precision formula oil equipment.
Background technology
The application of oil equipment in liquefaction industry is very general, is a kind of common apparatus raw materials such as peanut, soybean, vegetable seed being carried out to processing and manufacturing oil plant.It is generally that raw material is carried out being delivered in oil equipment after pretreatment is fried in steaming, and squeeze, the crude oil squeezed out again refining is processed into edible oil, also will leach afterwards, and the crude oil after leaching again refining is processed into edible oil.
At present, although the oil equipment of existing automation, as the hydraulic standing oil press that number of patent application is 201210035833.2, and number of patent application is a kind of large spiral oil press of 200610019613.5, although raw material can extract oil by these equipment, but its cost of manufacture and maintenance cost are all very expensive, and the uninterrupted of the slag charge flowing through discharging opening all can not adjust according to practical operation situation.
Utility model content
For the deficiencies in the prior art, the utility model object is intended to provide a kind of novel precision formula oil equipment, significantly can reduce cost of manufacture and the maintenance cost of novel precision formula oil equipment, the slag charge uninterrupted flowing through discharging opening can adjust according to practical operation situation, can extrude the propelling dynamics of oil expression by control piston very accurately.
For achieving the above object, the utility model adopts following technical scheme:
A kind of novel precision formula oil equipment, comprise bracing frame, be arranged on the shell on bracing frame, plug-in mounting fuel-displaced cylinder in the enclosure, be positioned at the cavity of fuel-displaced cylinder and movable piston can be done at this cavity, and the drive unit for driving this piston movable, the circumferential wall of described fuel-displaced cylinder is formed with multiple oilhole, the top of described shell is provided with the feed hopper be connected with fuel-displaced cylinder, the bottom of described shell is formed with oil-out in the position of the fuel-displaced cylinder of correspondence, the front portion of described fuel-displaced cylinder is connected with the cover that closes up, one end of the described cover that closes up is for amplifying end, the other end is for reducing end, described amplification end is connected with fuel-displaced cylinder, described reducing on end is formed with discharging opening, the garment bag be made up of elastomeric material is fitted with in described closing in cover, the rear end of described garment bag and the front end of fuel-displaced cylinder socket-connect, the front end of described garment bag is connected with multiple lobe ring, the edge of every adjacent petals ring is overlapped, each lobe ring is provided with the adjusting device for adjusting the mass flow size flowing through discharging opening,
Described drive unit comprises the first motor be fixedly mounted on bracing frame, the sheath body be fixedly mounted on the first motor, be positioned at sheath body and the drive link be connected with the output shaft of the first motor, the drive sleeve be threaded with drive link, for limiting the limiting mechanism that drive sleeve rotates, described drive sleeve is fixedly connected with piston, and described drive link extends along the axial direction of sheath body.
Preferably, described adjusting device comprises the adjustment circle being sleeved on and closing up and put, and described adjustment circle has been threaded adjustment bolt, and described lobe ring is fixedly connected with sleeve, the inwall of described sleeve is formed with the internal thread connected for adjustment bolt thread.
Preferably, described adjustment bolt is set with the first spring, the top of described adjustment bolt is formed with position limiting convex ring, and the upper end of described first spring is connected on position limiting convex ring, and the lower end of described first spring is connected on lobe ring.
Preferably, described limiting mechanism comprises the stationary magazine creel be sleeved in drive sleeve, the screw be inserted on stationary magazine creel, and described drive sleeve is formed with the first guide groove of the end head plug-in mounting for screw, described first guide groove extends along the axial direction of drive sleeve.
Preferably, described limiting mechanism also comprises the guide pillar be arranged in drive sleeve, and described sheath body is formed with the second guide groove of the end head plug-in mounting for guide pillar, described second guide groove extends along the axial direction of sheath body.
Preferably, described drive sleeve comprises drive sleeve epimere and drive sleeve hypomere, the diameter of described drive sleeve epimere is greater than the diameter of drive sleeve hypomere, described drive sleeve hypomere is set with the second spring, the upper end of described second spring is connected with drive sleeve epimere, and the lower end of described second spring is connected with stationary magazine creel.
Preferably, the front end face of described piston is dismountable is provided with the second motor, the output shaft of described second motor is connected with the toolbox for striking off the slag charge be attached on fuel-displaced cylinder.
Preferably, described toolbox comprises the rotating shaft be connected with the output shaft of the second motor, the screw blade be connected with rotating shaft, and described screw blade extends forward clockwise or counterclockwise.
Preferably, the upper surface of described piston is formed with the groove for preventing feed blocking, described groove coordinates with feed hopper and is formed with adapter cavity.
Preferably, the inwall of described feed hopper is installed with heater.
The utility model beneficial effect is:
The utility model by being provided with shell on bracing frame, be fitted with fuel-displaced cylinder in the enclosure, be provided with in the cavity of fuel-displaced cylinder and can within it do the piston seesawed, piston is driven by drive unit, the circumferential wall of fuel-displaced cylinder is formed with multiple oilhole, the top of shell is provided with the feed hopper be connected with fuel-displaced cylinder, the bottom of shell is formed with oil-out in the position of the fuel-displaced cylinder of correspondence, the front portion of described fuel-displaced cylinder is connected with the cover that closes up, one end of closing in cover is for amplifying end, the other end is for reducing end, amplify end to be connected with fuel-displaced cylinder, reduce on end and be formed with discharging opening, close up in overlapping and be fitted with the garment bag be made up of elastomeric material, the rear end of garment bag and the front end of fuel-displaced cylinder socket-connect, the front end of garment bag is connected with multiple lobe ring, the edge of every adjacent petals ring is overlapped, each lobe ring is provided with the adjusting device for adjusting the mass flow size flowing through discharging opening, enter to after in fuel-displaced cylinder from feed hopper through steaming the pretreated material of stir-fry, under the promotion of piston and under the closing in effect of the cover that closes up, oil expression process is carried out to material, the oil plant of squeezing out flows out to oil-out from oilhole and collects, after oil expression, by recovering the cover that closes up, just slag charge can be discharged from discharge outlet, cost of manufacture of the present utility model and maintenance cost are very low, the slag charge uninterrupted flowing through discharging opening can adjust according to practical operation situation, and drive unit can drive the rotation of drive link, drive link can drive moving left and right of drive sleeve, by the rotating speed of accessory drive, the displacement of drive sleeve can be controlled accurately, and then the propelling dynamics of the oil expression of control piston extruding accurately, simultaneously, adjusting device comprises the adjustment circle being sleeved on and closing up and put, adjustment circle has been threaded adjustment bolt, lobe ring is fixedly connected with sleeve, the inwall of sleeve is formed with the internal thread connected for adjustment bolt thread, turns adjustment bolt by positive and negative, just can move along close or away from the cover that closes up centerline direction with moving vane ring, and then adjustment flows through the slag charge uninterrupted of discharging opening, operation is very easy, in addition, the front end face of piston is dismountable is provided with the second motor, the output shaft of the second motor is connected with the toolbox for striking off the slag charge be attached on fuel-displaced cylinder, can the seesawing of carry its tools assembly by the first motor, can the rotary motion of carry its tools assembly by the second motor, the slag charge be attached on fuel-displaced cylinder can be struck off, and then facilitate slag charge to discharge from discharge outlet.
Accompanying drawing explanation
Fig. 1 is the structural representation that the utility model does not install the second motor and toolbox;
Fig. 2 is the side view of Fig. 1;
Fig. 3 is the structural representation of drive unit of the present utility model;
Fig. 4 is the structural representation that the utility model is provided with the second motor and toolbox;
Fig. 5 is the structural representation of toolbox of the present utility model.
Wherein, 1, bracing frame; 2, shell; 3, fuel-displaced cylinder; 4, piston; 5, feed hopper; 6, oil-out; 7, oilhole; 8, close up cover; 9, adjustment circle; 10, end is amplified; 11, end is reduced; 12, discharging opening; 13, bolt is adjusted; 14, groove; 15, sheath body; 16, the first motor; 17, the second motor; 18, screw blade; 19, lobe ring; 20, position limiting convex ring; 21, the first spring; 22, sleeve; 23, rotating shaft; 24, drive link; 25, stationary magazine creel; 26, drive sleeve; 27, guide pillar; 28, the second guide groove; 29, the first guide groove; 30, screw.
Detailed description of the invention
Below, by reference to the accompanying drawings and detailed description of the invention, the utility model is described further:
As shown in Figure 1-2, for a kind of novel precision formula oil equipment of the present utility model, comprise bracing frame 1, be arranged on the shell 2 on bracing frame 1, be inserted into the fuel-displaced cylinder 3 in shell 2, be positioned at the cavity of fuel-displaced cylinder 3 and movable piston 4 can be done at this cavity, and the drive unit for driving this piston 4 movable, the circumferential wall of described fuel-displaced cylinder 3 is formed with multiple oilhole 7, the top of described shell 2 is provided with the feed hopper 5 be connected with fuel-displaced cylinder 3, the bottom of described shell 2 is formed with oil-out 6 in the position of the fuel-displaced cylinder 3 of correspondence, the front portion of described fuel-displaced cylinder 3 is connected with closing in cover 8, one end of described closing in cover 8 is for amplifying end 10, the other end is for reducing end 11, described amplification end 10 is connected with fuel-displaced cylinder 3, described reducing on end 11 is formed with discharging opening 12, the garment bag (not shown) be made up of elastomeric material is fitted with in described closing in cover 8, the rear end of described garment bag and the front end of fuel-displaced cylinder 3 socket-connect, the front end of described garment bag is connected with multiple lobe ring 19, the edge of every adjacent petals ring 19 is overlapped, each lobe ring 19 is provided with the adjusting device for adjusting the mass flow size flowing through discharging opening 12.
As shown in Figure 3, described drive unit comprises the first motor 16 be fixedly mounted on bracing frame 1, the sheath body 15 be fixedly mounted on the first motor 16, be positioned at sheath body 15 and the drive link 24 be connected with the output shaft of the first motor 16, the drive sleeve 26 be threaded with drive link 24, for limiting the limiting mechanism that drive sleeve 26 rotates, described drive sleeve 26 is fixedly connected with piston 4, and described drive link 24 extends along the axial direction of sheath body 15.
The specific works process of this drive unit is: the rotary motion that can be driven drive link 24 by the first motor 16, because drive sleeve 26 and drive link 24 are threaded, and under the effect of the limiting mechanism of restriction drive sleeve 26 rotation, to moving left and right of drive sleeve 26 be driven, finally drive moving left and right of piston 4.Therefore, by controlling the rotating speed of the first motor 16 accurately, the propelling dynamics of oil expression can be extruded by control piston 4 accurately, making the utility model according to the propelling dynamics of the actual conditions adjustment piston 4 of material, the best fuel-displaced effect of material can be obtained.
The present embodiment will enter to after in fuel-displaced cylinder 3 from feed hopper 5 through steaming the pretreated material of stir-fry, under the promotion of piston 4 and under the closing in effect of closing in cover 8, oil expression process is carried out to material, the oil plant of squeezing out flows out to oil-out 6 from oilhole 7 and collects, after oil expression, by recovering closing in cover 8, just slag charge can be discharged from discharging opening 12.
Preferably, described adjusting device comprises the adjustment circle 9 be sleeved on closing in cover 8, described adjustment circle 9 has been threaded adjustment bolt 13, and described lobe ring 19 is fixedly connected with sleeve 22, the inwall of described sleeve 22 is formed with the internal thread be threaded for adjustment bolt 13.
The concrete operations flow process of this adjusting device is: by turning adjustment bolt 13, adjustment bolt 13 is moved towards lobe ring 19, when the end head adjusting bolt 13 is connected to the bottom of sleeve 22, continue to turn adjustment bolt 13, the position of center line of band moving vane ring 19 towards closing in cover 8 moves by the adjustment bolt 13 continuing to move towards lobe ring 19, and the mass flow flowing through discharging opening 12 is diminished; When oppositely turning adjustment bolt 13, by making, the material flow quantitative change flowing through discharging opening 12 is large.
When actual fabrication, the quantity of lobe ring 19 can be three, and its distributing position can be as shown in Figure 2.
Preferably, described adjustment bolt 13 is set with the first spring 21, the top of described adjustment bolt 13 is formed with position limiting convex ring 20, and the upper end of described first spring 21 is connected on position limiting convex ring 20, and the lower end of described first spring 21 is connected on lobe ring 19.Under the bounce effect of the first spring 21, can move with the position of center line of moving vane ring 19 towards closing in cover 8 more easily, and the reset work of convenient adjustment bolt 13.
Preferably, described limiting mechanism comprises the stationary magazine creel 25 be sleeved in drive sleeve 26, the screw 30 be inserted on stationary magazine creel 25, described drive sleeve 26 is formed with the first guide groove 29 of the end head plug-in mounting for screw 30, described first guide groove 29 extends along the axial direction of drive sleeve 26.
Preferably, described limiting mechanism also comprises the guide pillar 27 be arranged in drive sleeve 26, and described sheath body 15 is formed with the second guide groove 28 of the end head plug-in mounting for guide pillar 27, described second guide groove 28 extends along the axial direction of sheath body 15.
Under the setting of above-mentioned limiting mechanism, drive sleeve 26 can only be moved up and down, and can not rotate.
Preferably, described drive sleeve 26 comprises drive sleeve epimere and drive sleeve hypomere, the diameter of described drive sleeve epimere is greater than the diameter of drive sleeve hypomere, described drive sleeve hypomere is set with the second spring (not shown), the upper end of described second spring is connected with drive sleeve epimere, and the lower end of described second spring is connected with stationary magazine creel 25.
Second spring is be in the state by compressing when the most initial, drive sleeve 26 is left or when moving right, second spring is all to drive sleeve 26 1 active force left, make can obtain good screw-driven between drive sleeve 26 and drive link 24, effectively can prevent the phenomenon that manufacturing tolerance or use procedure due to drive sleeve 26 and drive link 24 produce wearing and tearing and cause transmission efficiency to reduce.
Preferably, as shown in Figure 4, the front end face of described piston 4 is dismountable is provided with the second motor 17, the output shaft of described second motor 17 is connected with the toolbox for striking off the slag charge be attached on fuel-displaced cylinder 3.After material oil expression, in the front end of piston 4, second motor 17 and toolbox can be installed, can the seesawing of carry its tools assembly by the first motor 16, can the rotary motion of carry its tools assembly by the second motor 17, the slag charge be attached on fuel-displaced cylinder 3 can be struck off, and then facilitate slag charge to discharge from discharging opening 12.Second motor 17 can be by the dismountable front end being arranged on piston 4 of bolt, installs, just detachably get off when not needing when needing to strike off slag charge, very easy to use.
Preferably, as shown in Figure 5, described toolbox comprises the rotating shaft 23 be connected with the output shaft of the second motor 17, the screw blade 18 be connected with rotating shaft 23, and described screw blade 18 extends forward clockwise or counterclockwise.The setting of screw blade 18, can facilitate the slag charge removed and be attached on fuel-displaced cylinder 3 better, slag charge also can be facilitated simultaneously to move towards discharging opening 12 direction under the spiral rotating of screw blade 18.
Preferably, the upper surface of described piston 4 is formed with the groove 14 for preventing feed blocking, described groove 14 coordinates with feed hopper 5 and is formed with adapter cavity.If not this groove 14, then when piston 4 driven forward material, the upper wall surface of piston 4 can stop entering of the material on feed hopper 5, and after being provided with groove 14, piston 4 is when travelling forward, material on feed hopper 5 still can flow into from groove 14, flows in fuel-displaced cylinder 3, thus prevent the phenomenon of feed blocking in adapter cavity.
Preferably, the inwall of described feed hopper 5 is installed with heater (not shown), make to enter in fuel-displaced cylinder 3 after the feed hopper 5 with uniform temperature through the pretreated material of steaming stir-fry to extract oil, the oil yield of such material can be higher again.This heater can be prior art, as long as can improve the temperature of feed hopper 5 inwall.
In addition, vibrator (not shown) can be installed with at the outer wall of feed hopper 5, the vibration of this vibrator can prevent the blocking of material in feed hopper 5, also can adjust material simultaneously in feed hopper 5, fall to falling speed in fuel-displaced cylinder 3 by this vibrator.Vibrator is equipment of the prior art, can vibrate the outer wall of feed hopper 5.
The utility model will enter to after in fuel-displaced cylinder 3 from feed hopper 5 through steaming the pretreated material of stir-fry, by turning adjustment bolt 13, shell nosing treatment is carried out to closing in cover 8, then the first motor 16 is started, drive the rotation of drive link 24, and then drive drive sleeve 26 to move right, promote piston 4 to extrude towards material, oil expression process is carried out to material, the oil plant of squeezing out flows out to oil-out 6 from oilhole 7 and collects, after oil expression, by oppositely turning adjustment bolt 13, enlarging process is carried out to closing in cover 8, the large I of enlarging adjusts according to actual conditions, slag charge after oil expression just can discharge from discharging opening 12.If be attached to slag charge on fuel-displaced cylinder 3 too much time, can on piston 4 dismountable installation second motor 17 and toolbox, can the seesawing of carry its tools assembly by the first motor 16, can the rotary motion of carry its tools assembly by the second motor 17, the slag charge be attached on fuel-displaced cylinder 3 can be struck off, and then facilitate slag charge to discharge from discharging opening 12.
For a person skilled in the art, according to technical scheme described above and design, other various corresponding change and distortion can be made, and all these change and distortion all should belong within the protection domain of the utility model claim.
Claims (10)
1. a novel precision formula oil equipment, it is characterized in that: comprise bracing frame, be arranged on the shell on bracing frame, plug-in mounting fuel-displaced cylinder in the enclosure, be positioned at the cavity of fuel-displaced cylinder and movable piston can be done at this cavity, and the drive unit for driving this piston movable, the circumferential wall of described fuel-displaced cylinder is formed with multiple oilhole, the top of described shell is provided with the feed hopper be connected with fuel-displaced cylinder, the bottom of described shell is formed with oil-out in the position of the fuel-displaced cylinder of correspondence, the front portion of described fuel-displaced cylinder is connected with the cover that closes up, one end of the described cover that closes up is for amplifying end, the other end is for reducing end, described amplification end is connected with fuel-displaced cylinder, described reducing on end is formed with discharging opening, the garment bag be made up of elastomeric material is fitted with in described closing in cover, the rear end of described garment bag and the front end of fuel-displaced cylinder socket-connect, the front end of described garment bag is connected with multiple lobe ring, the edge of every adjacent petals ring is overlapped, each lobe ring is provided with the adjusting device for adjusting the mass flow size flowing through discharging opening,
Described drive unit comprises the first motor be fixedly mounted on bracing frame, the sheath body be fixedly mounted on the first motor, be positioned at sheath body and the drive link be connected with the output shaft of the first motor, the drive sleeve be threaded with drive link, for limiting the limiting mechanism that drive sleeve rotates, described drive sleeve is fixedly connected with piston, and described drive link extends along the axial direction of sheath body.
2. novel precision formula oil equipment as claimed in claim 1, it is characterized in that: described adjusting device comprises the adjustment circle being sleeved on and closing up and put, described adjustment circle has been threaded adjustment bolt, described lobe ring is fixedly connected with sleeve, the inwall of described sleeve is formed with the internal thread connected for adjustment bolt thread.
3. novel precision formula oil equipment as claimed in claim 2, it is characterized in that: described adjustment bolt is set with the first spring, the top of described adjustment bolt is formed with position limiting convex ring, and the upper end of described first spring is connected on position limiting convex ring, and the lower end of described first spring is connected on lobe ring.
4. novel precision formula oil equipment as claimed in claim 1, it is characterized in that: described limiting mechanism comprises the stationary magazine creel be sleeved in drive sleeve, the screw be inserted on stationary magazine creel, described drive sleeve is formed with the first guide groove of the end head plug-in mounting for screw, described first guide groove extends along the axial direction of drive sleeve.
5. novel precision formula oil equipment as claimed in claim 4, it is characterized in that: described limiting mechanism also comprises the guide pillar be arranged in drive sleeve, described sheath body is formed with the second guide groove of the end head plug-in mounting for guide pillar, described second guide groove extends along the axial direction of sheath body.
6. novel precision formula oil equipment as claimed in claim 4, it is characterized in that: described drive sleeve comprises drive sleeve epimere and drive sleeve hypomere, the diameter of described drive sleeve epimere is greater than the diameter of drive sleeve hypomere, described drive sleeve hypomere is set with the second spring, the upper end of described second spring is connected with drive sleeve epimere, and the lower end of described second spring is connected with stationary magazine creel.
7. novel precision formula oil equipment as claimed in claim 1, is characterized in that: the front end face of described piston is dismountable is provided with the second motor, the output shaft of described second motor is connected with the toolbox for striking off the slag charge be attached on fuel-displaced cylinder.
8. novel precision formula oil equipment as claimed in claim 7, it is characterized in that: described toolbox comprises the rotating shaft be connected with the output shaft of the second motor, the screw blade be connected with rotating shaft, described screw blade extends forward clockwise or counterclockwise.
9. the novel precision formula oil equipment as described in any one of claim 1-8, is characterized in that: the upper surface of described piston is formed with the groove for preventing feed blocking, and described groove coordinates with feed hopper and is formed with adapter cavity.
10. the novel precision formula oil equipment as described in any one of claim 1-8, is characterized in that: the inwall of described feed hopper is installed with heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420695886.1U CN204309289U (en) | 2014-11-19 | 2014-11-19 | A kind of novel precision formula oil equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420695886.1U CN204309289U (en) | 2014-11-19 | 2014-11-19 | A kind of novel precision formula oil equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204309289U true CN204309289U (en) | 2015-05-06 |
Family
ID=53131621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420695886.1U Withdrawn - After Issue CN204309289U (en) | 2014-11-19 | 2014-11-19 | A kind of novel precision formula oil equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204309289U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104441733A (en) * | 2014-11-19 | 2015-03-25 | 肖金坚 | Novel accurate oil expression equipment |
-
2014
- 2014-11-19 CN CN201420695886.1U patent/CN204309289U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104441733A (en) * | 2014-11-19 | 2015-03-25 | 肖金坚 | Novel accurate oil expression equipment |
| CN104441733B (en) * | 2014-11-19 | 2016-01-27 | 肖金坚 | A kind of precisely formula oil equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150506 Effective date of abandoning: 20160127 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |