CN203939722U - Deep-well pump - Google Patents
Deep-well pump Download PDFInfo
- Publication number
- CN203939722U CN203939722U CN201420336634.XU CN201420336634U CN203939722U CN 203939722 U CN203939722 U CN 203939722U CN 201420336634 U CN201420336634 U CN 201420336634U CN 203939722 U CN203939722 U CN 203939722U
- Authority
- CN
- China
- Prior art keywords
- water outlet
- limiting stopper
- joint
- safety check
- deep
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 102
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 230000000994 depressogenic effect Effects 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 claims abstract description 6
- 241001247986 Calotropis procera Species 0.000 claims description 19
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 239000004519 grease Substances 0.000 claims description 7
- 230000001050 lubricating effect Effects 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 description 22
- 238000000034 method Methods 0.000 description 12
- 239000007788 liquid Substances 0.000 description 9
- 238000005461 lubrication Methods 0.000 description 4
- 239000002360 explosive Substances 0.000 description 3
- 239000011324 bead Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a kind of deep-well pump, its technological scheme main points are, in water outlet joint, be provided with the seal ring of embedded metal skeleton, safety check comprise spool body and successively one connect and be arranged at bend section on spool body, and with the arcuate segment of bend section opposite direction, arcuate segment outer surface forms sealed department, between sealed department and seal ring, be tightly connected, in water outlet joint, be provided with limit stoper, limit stoper comprises limited ring, limited ring is fixedly connected on safety check top, limited ring inwall is provided with limited part, limited part comprises the limiting stopper at 6 Tiao Guo centers, between each limiting stopper, be 60 ° of angles, between arbitrary neighborhood limiting stopper, be connected with contiguous block, between contiguous block, form regular hexagon structure, the all opposite side that with bend section be connected relative to the arcuate segment connections of can conflicting of each limiting stopper, depressed part is established in limiting stopper and arcuate segment joint, on limiting stopper, be coated with rubber layer completely.The utlity model has good sealing and there is low noise.
Description
Technical field
The utility model relates to a kind of pump, and more particularly, it relates to a kind of deep-well pump.
Background technique
The maximum feature of deep-well pump is that motor and pump are made to one, and it is to immerse a kind of pump that aspirates and carry water in underground water well, is widely used in farmland discharging-irrigating, industrial and mining enterprise, urban water supply and sewerage and sewage treatment etc.Because motor pulls the plug simultaneously, therefore more special than general motor for the structural requirement of motor.The structural type of its motor is divided into 4 kinds of dry types, half dry type, oil-filled type, wet type.Before turn on pump, in suction pipe and pump, must be full of liquid.After turn on pump, impeller High Rotation Speed, liquid wherein, along with blade rotates together, under the effect of centrifugal force, flies away from impeller and outwards penetrates, and the liquid of ejaculation speed in pump case explosion chamber is slack-off gradually, and pressure increases gradually, and then from pump discharge, discharge tube flows out.Now, in blade center, because being thrown toward, liquid around forms the vacuum low-pressure district that not only there is no air but also there is no liquid, liquid in liquid pool is under the atmospheric effect of pond face, in suction pipe inflow pump, liquid is exactly so continuously from liquid pool, be pumped up and continuously from discharge tube, flow out.
Deep-well pump of the prior art generally comprises into water and saves, the pump housing, water outlet joint, motor, impeller, pump connecting base, water outlet joint is arranged on the upper end of the pump housing, water inlet joint is arranged on the lower end of the pump housing, in the water inlet that arranges that intakes and save, and in water inlet, be provided with filter screen, the pump housing is comprised of some joint volutes, motor is provided with output shaft, motor is connected with splined shaft by coupling, each impeller is all solidly set on splined shaft, motor is connected by pump connecting base with water inlet joint, the two ends of water outlet joint are provided with suspension ring, generally can in water outlet joint, safety check be set, when deep-well pump is started working, impeller High Rotation Speed is evacuated to water outlet joint place by water, now under the effect of hydraulic pressure, safety check upwards will be backed down, water is flowed out from water outlet joint, if when deep-well pump quits work, safety check can move down again blocks the entrance in water outlet joint, but because water outlet joint in this deep-well pump arranges unreasonable, deep-well pump arranges and limits safety check movement travel limit stoper in water outlet joint, therefore in the time of will there is work, safety check reset effect is poor, thereby cause poor sealing performance, and the water outlet of this deep-well pump joint safety check noise in the time of switch is larger, and in transportation process, safety check can teetertotter always in water outlet joint, causes the defect that noise is large, working life is short.
model utility content
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of deep-well pump, and this deep-well pump has improved the structural design of water outlet joint, makes it have good sealing and has advantages of low noise.
For achieving the above object, the utility model provides following technological scheme: a kind of deep-well pump, comprise into water and saving, the pump housing, water outlet joint, motor, pump connecting base, and be located in the splined shaft in the pump housing, described water outlet joint is arranged on the upper end of the pump housing, described water inlet joint is arranged on the lower end of the pump housing, in the water inlet that arranges that intakes and save, in described water inlet, be provided with filter screen, the described pump housing comprises some joint volutes and impeller, motor is provided with output shaft, motor is connected with splined shaft by coupling, each impeller is all solidly set on splined shaft, motor is connected by pump connecting base with water inlet joint, in described water outlet joint, safety check is set, described water outlet joint is provided with water outlet, in described water outlet joint, be provided with the seal ring of embedded metal skeleton, described safety check comprise spool body and successively one connect and be arranged at bend section on spool body, and with the arcuate segment of bend section opposite direction, described arcuate segment outer surface forms sealed department, between described sealed department and seal ring, be tightly connected, in described water outlet joint, be provided with limit stoper, described limit stoper comprises limited ring, described limited ring is fixedly connected on safety check top, described limited ring inwall is provided with limited part, described limited part comprises the limiting stopper at 6 Tiao Guo centers, between each described limiting stopper, be 60 ° of angles, between described arbitrary neighborhood limiting stopper, be connected with contiguous block, between described contiguous block, form regular hexagon structure, the all opposite side that with bend section be connected relative to the arcuate segment connections of can conflicting of described each limiting stopper, depressed part is established in described limiting stopper and arcuate segment joint, on described limiting stopper, be coated with rubber layer completely.
By adopting technique scheme, the seal ring of embedded metal skeleton is set in water outlet joint, and the spool body of safety check is set to bend section and arcuate segment, the outer surface of arcuate segment forms sealed department, sealed department and seal ring are tightly connected, when motor is started working, under the effect of impeller, water is flowed from below to up, safety check is upwards washed open, current are flowed out from the water outlet of water outlet joint, there is the design of limited ring and limiting stopper, can effectively prevent that current are excessive, safety check is collided to water outlet joint and the collision of water outlet joint and damages, improve the working life of safety check, limiting stopper and arcuate segment joint arrange depressed part, can be so that safety check be well connected in depressed part when being subject to water impact, make the position of safety check be difficult for changing, and then position there will not be deviation while spool body being moved down under the effect of self gravitation and upper end hydraulic pressure reset, and then can improve the sealing effect of safety check, one deck rubber layer is set on limiting stopper, because rubber has elasticity, therefore can be when spool body jack-up being collided with limiting stopper compared with mass-flow pressure the effect of its buffering and protection, improve the working life of safety check, and because rubber has soft performance, therefore also can effectively reduce the noise that spool body and position limit cycle produce, the design of bend section and arcuate segment can play buffer function to current.
Preferably, described seal ring comprises with seal ring body and is integrally formed at the sealing lip on seal ring body, and described sealing lip and sealed department joint are provided with arc-shaped recess, between described arc-shaped recess and sealed department, form ball face sealing.
By adopting technique scheme, when motor quits work, spool body is tightly connected with the sealing lip formation of seal ring under the effect of own wt and upper end hydraulic pressure, between the depressed part of arc and sealed department, forming ball face sealing and can further improve sealing effect, there is backflow phenomenon in anti-sealing.
Preferably, the other end that described water outlet joint is provided with water outlet relatively sets firmly stator, described stator sets firmly cover plate of guide blade with the other end that water outlet joint is connected relatively, between adjacent guide vane cover plate, form and the inner water intake communicating of water outlet joint, described cover plate of guide blade center is provided with through hole, in described through hole, be provided with rubber bush bearing, described splined shaft relatively and the coupling the other end be installed with axle sleeve, described axle sleeve is placed in rubber bush bearing, on the outer peripheral surface of described axle sleeve, be radially provided with mounting hole, in described mounting hole, be provided with ball, described mounting hole opening is provided with for clasping the portion that clasps of ball, described ball and mounting hole bottom are supported and are provided with spring, in described mounting hole, be also filled with lubricating grease.
By adopting technique scheme, on the outer peripheral surface of axle sleeve, establish mounting hole, and ball is set in mounting hole, and in mounting hole, establish lubricating grease, in the time of in axle sleeve is placed in rubber bush bearing, ball will make ball be subject to the extruding of rubber bush bearing when contacting with rubber bush bearing and being squeezed, thereby the opening of mounting hole is opened, and lubricating grease just can flow out and enter in rubber bush bearing, plays lubrication effect, and then can effectively reduce the wearing and tearing between axle sleeve and rubber bush bearing, reduce noise.
Preferably, the quantity of described mounting hole is 3, and is evenly distributed around axle sleeve center.
By adopting technique scheme, such design is the lubrication effect between high axle sleeve and rubber bush bearing further just, extends working life, the reduction noise of deep-well pump.
Preferably, described contiguous block is provided with slide rail along splined shaft axial direction, in described slide rail, is provided with slide block, and described slide block can be conflicted and be connected with safety check.
By adopting technique scheme, moving slider is during by itself and spool body butt, just can limit safety check moves up and down, make safety check well be fitted on seal ring, in the process of transportation deep-well pump safety check there will not be and limiting stopper between collide, and then can effectively reduce noise, when when using deep-well pump, only slide block upward sliding need be made slide block and safety check depart from, and then not affect the normal use of deep-well pump.
Preferably, one end that described slide block is corresponding with safety check is provided with hemispherical elastic bumps.
By adopting technique scheme, hemispherical elastic bumps is connected on safety check, can further reduce the noise producing because of vibration between slide block and safety check.
Preferably, the opposite side that described arcuate segment is connected with bend section relatively wraps up one deck rubber layer completely.
By adopting technique scheme; when motor is normally worked; under the effect of impeller; water is flowed from below to up, safety check is upwards washed open, current are flowed out from the water outlet of water outlet joint; the design of rubber layer can play buffer function when safety check and limiting stopper collision; reduce noise, better protect safety check, extend its working life.
Accompanying drawing explanation
Fig. 1 is the utility model deep-well pump embodiment's explosive view;
Fig. 2 is the utility model deep-well pump embodiment's structural drawing;
Fig. 3 is the explosive view of water outlet joint in the utility model deep-well pump embodiment;
Fig. 4 is the utility model deep-well pump embodiment's sectional view;
Fig. 5 is the explosive view of volute in the utility model deep-well pump embodiment;
Fig. 6 be in the utility model deep-well pump embodiment water outlet joint sectional view;
Fig. 7 is the structural representation one of limit stoper in the utility model deep-well pump embodiment;
Fig. 8 is the structural representation two of limit stoper in the utility model deep-well pump embodiment;
Fig. 9 is A portion enlarged view in Fig. 4;
Figure 10 is the sectional view of the utility model deep-well pump limit stoper;
Figure 11 is B portion enlarged view in Fig. 4.
Reference character: 1, water inlet joint; 11, water inlet; 12, filter screen; 2, the pump housing; 21, volute; 22, impeller; 23, splined shaft; 231, axle sleeve; 2311, mounting hole; 2312, ball; 3, water outlet joint; 31, water outlet; 32, seal ring; 321, seal ring body; 322, sealing lip; 323, arc-shaped recess; 33, stator; 34, cover plate of guide blade; 341, through hole; 4, motor; 5, pump connecting base; 6, safety check; 61, spool body; 62, bend section; 63, arcuate segment; 631, sealed department; 7, limit stoper; 71, limited ring; 711, limiting stopper; 712, contiguous block; 7111, depressed part; 7112, slide rail; 71121, positioning hole; 712; Rubber layer; 8, slide block; 81, positioning bead; 82, elastic bumps; 9, rubber bush bearing.
Embodiment
Referring to figs. 1 through Figure 11, the utility model deep-well pump embodiment is described further.
A kind of deep-well pump, comprise into water joint 1, the pump housing 2, water outlet joint 3, motor 4, pump connecting base 5, and be located in the splined shaft 23 in the pump housing 2, described water outlet joint 3 is arranged on the upper end of the pump housing 2, described water inlet joint 1 is arranged on the lower end of the pump housing 2, on water inlet joint 1 water inlet 11 is set, in described water inlet 11, be provided with filter screen 12, the described pump housing 2 comprises some joint volutes 21 and impeller 22, motor 4 is provided with output shaft, motor 4 is connected with splined shaft 23 by coupling, each impeller 22 is all solidly set on splined shaft 23, motor 4 is connected by pump connecting base 5 with water inlet joint 1, described water outlet saves the 3 interior safety check 6 that arrange, described water outlet joint 3 is provided with water outlet 31, in described water outlet joint 3, be provided with the seal ring 32 of embedded metal skeleton, described safety check 6 comprise spool body 61 and successively one connect and be arranged at bend section 62 on spool body 61, and with the arcuate segment 63 of bend section 62 opposite directions, described arcuate segment 63 outer surfaces form sealed department 631, between described sealed department 631 and seal ring 32, be tightly connected, in described water outlet joint 3, be provided with limit stoper 7, described limit stoper 7 comprises limited ring 71, described limited ring 71 is fixedly connected on safety check 6 tops, described limited ring 71 inwalls are provided with limited part, described limited part comprises the limiting stopper 711 at 6 Tiao Guo centers, between each described limiting stopper 711, be 60 ° of angles, between described arbitrary neighborhood limiting stopper 711, be connected with contiguous block 712, between described contiguous block 712, form regular hexagon structure, the all opposite side that with bend section 62 be connected relative to arcuate segment 63 connections of can conflicting of described each limiting stopper 711, described limiting stopper 711 is established depressed part 7111 with arcuate segment 63 joints, on described limiting stopper 711, be coated with rubber layer 712 completely.
By adopting technique scheme, in water outlet, save the 3 interior seal rings 32 that embedded metal skeleton is set, and the spool body 61 of safety check 6 is set to bend section 62 and arcuate segment 63, the outer surface of arcuate segment 63 forms sealed department 631, sealed department 631 is tightly connected with seal ring 32, when motor 4 is started working, under the effect of impeller 22, water is flowed from below to up, safety check 6 is upwards washed open, current are flowed out from the water outlet 31 of water outlet joint 3, there is the design of limited ring 71 and limiting stopper 711, can effectively prevent that current are excessive, safety check 6 is collided to water outlet joint 3 to be bumped against with water outlet joint 3 and damages, improve the working life of safety check 6, limiting stopper 711 arranges depressed part 7111 with arcuate segment 63 joints, can be so that safety check 6 be well connected in depressed part 7111 when being subject to water impact, make the position of safety check 6 be difficult for changing, and then position there will not be deviation while spool body 61 being moved down under the effect of self gravitation and upper end hydraulic pressure reset, and then can improve the sealing effect of safety check 6, one deck rubber layer 712 is set on limiting stopper 711, because rubber has elasticity, therefore can be when spool body 61 jack-up being collided with limiting stopper 711 compared with mass-flow pressure the effect of its buffering and protection, improve the working life of safety check 6, and because rubber has soft performance, therefore also can effectively reduce the noise that spool body 61 and position limit cycle produce, the design of bend section 62 and arcuate segment 63 can play buffer function to current.
As preferred version, seal ring 32 comprises with seal ring body 321 and is integrally formed at the sealing lip 322 on seal ring body 321, described sealing lip 322 is provided with arc-shaped recess 323 with sealed department 631 joints, between described arc-shaped recess 323 and sealed department 631, form ball face sealing, when motor 4 quits work, spool body 61 is tightly connected with sealing lip 322 formation of seal ring 32 under the effect of own wt and upper end hydraulic pressure, between the depression of arc and sealed department 631, form ball face sealing and can further improve sealing effect, there is backflow phenomenon in anti-sealing.
As preferred version, water outlet joint 3 other ends that are relatively provided with water outlet 31 set firmly stator 33, described stator 33 sets firmly cover plate of guide blade 34 with water outlet joint 3 the other ends that are connected relatively, between adjacent guide vane cover plate 34, form and save with water outlet the water intake that 3 inside communicate, described cover plate of guide blade 34 centers are provided with through hole 341, in described through hole 341, be provided with rubber bush bearing 9, described splined shaft 23 relatively and the coupling the other end be installed with axle sleeve 231, described axle sleeve 231 is placed in rubber bush bearing 9, on the outer peripheral surface of described axle sleeve 231, be radially provided with mounting hole 2311, in described mounting hole 2311, be provided with ball 2312, described mounting hole 2311 openings are provided with for clasping the portion that clasps of ball 2312, described ball 2312 supports and is provided with spring with mounting hole 2311 bottoms, in described mounting hole 2311, be also filled with lubricating grease.Understandable, on the outer peripheral surface of axle sleeve 231, establish mounting hole 2311, and at the interior ball 2312 that arranges of mounting hole 2311, and establish lubricating grease in mounting hole 2311, when axle sleeve 231 is placed in rubber bush bearing 9 when interior, ball 2312 will make ball 2312 be subject to the extruding of rubber bush bearing 9 when contacting and being squeezed with rubber bush bearing 9, thereby the opening of mounting hole 2311 is opened, lubricating grease just can flow out and enter in rubber bush bearing 9, play lubrication effect, and then can effectively reduce the wearing and tearing between axle sleeve 231 and rubber bush bearing 9, reduce noise.
As preferred version, the quantity of described mounting hole 2311 is 3, and is evenly distributed around axle sleeve 231 centers, and such design is the lubrication effect between high axle sleeve 231 and rubber bush bearing 9 further just, extend deep-well pump working life, reduce noise.
Understandable, at contiguous block 712, along splined shaft 23 axial directions, be provided with slide rail 7112, in slide rail, be provided with slide block 8, between slide block 8 and slide rail 7112, by positioning hole 71121, coordinate to realize location with positioning bead 81, described slide block 8 can be conflicted and be connected with safety check 6, moving slider 8 is during by itself and spool body 61 butt, just can limit on safety check 6, lower movement, safety check 6 is well fitted on seal ring 32, transportation deep-well pump process in safety check 6 there will not be and limiting stopper 711 between collision, and then can effectively reduce noise, when when using deep-well pump, only slide block 8 upward slidings need be made slide block 8 and safety check 6 depart from, and then do not affect the normal use of deep-well pump.
As preferred version, hemispherical elastic bumps 82 is connected on safety check 6, can further reduce the noise producing because of vibration between slide block 8 and safety check 6.
As preferred version; when motor 4 normal work; under the effect of impeller 22; water is flowed from below to up, safety check 6 is upwards washed open, current are flowed out from the water outlet 31 of water outlet joint 3; the design that the opposite side being relatively connected with bend section 62 at arcuate segment 63 wraps up one deck rubber layer 712 completely can play buffer function when safety check 6 collides with limiting stopper 711; reduce noise, better protect safety check 6, extend its working life.
Claims (7)
1. a deep-well pump, comprise into water and saving, the pump housing, water outlet joint, motor, pump connecting base, and be located in the splined shaft in the pump housing, described water outlet joint is arranged on the upper end of the pump housing, described water inlet joint is arranged on the lower end of the pump housing, in the water inlet that arranges that intakes and save, in described water inlet, be provided with filter screen, the described pump housing comprises some joint volutes and impeller, motor is provided with output shaft, motor is connected with splined shaft by coupling, each impeller is all solidly set on splined shaft, motor is connected by pump connecting base with water inlet joint, in described water outlet joint, safety check is set, described water outlet joint is provided with water outlet, it is characterized in that: the seal ring that is provided with embedded metal skeleton in described water outlet joint, described safety check comprise spool body and successively one connect and be arranged at bend section on spool body, and with the arcuate segment of bend section opposite direction, described arcuate segment outer surface forms sealed department, between described sealed department and seal ring, be tightly connected, in described water outlet joint, be provided with limit stoper, described limit stoper comprises limited ring, described limited ring is fixedly connected on safety check top, described limited ring inwall is provided with limited part, described limited part comprises the limiting stopper at 6 Tiao Guo centers, between each described limiting stopper, be 60 ° of angles, between described arbitrary neighborhood limiting stopper, be connected with contiguous block, between described contiguous block, form regular hexagon structure, the all opposite side that with bend section be connected relative to the arcuate segment connections of can conflicting of described each limiting stopper, depressed part is established in described limiting stopper and arcuate segment joint, on described limiting stopper, be coated with rubber layer completely.
2. deep-well pump according to claim 1, it is characterized in that: described seal ring comprises with seal ring body and is integrally formed at the sealing lip on seal ring body, described sealing lip and sealed department joint are provided with arc-shaped recess, between described arc-shaped recess and sealed department, form ball face sealing.
3. deep-well pump according to claim 2, it is characterized in that: the other end that described water outlet joint is provided with water outlet relatively sets firmly stator, described stator sets firmly cover plate of guide blade with the other end that water outlet joint is connected relatively, between adjacent guide vane cover plate, form and the inner water intake communicating of water outlet joint, described cover plate of guide blade center is provided with through hole, in described through hole, be provided with rubber bush bearing, described splined shaft relatively and the coupling the other end be installed with axle sleeve, described axle sleeve is placed in rubber bush bearing, on the outer peripheral surface of described axle sleeve, be radially provided with mounting hole, in described mounting hole, be provided with ball, described mounting hole opening is provided with for clasping the portion that clasps of ball, described ball and mounting hole bottom are supported and are provided with spring, in described mounting hole, be also filled with lubricating grease.
4. deep-well pump according to claim 3, is characterized in that: the quantity of described mounting hole is 3, and is evenly distributed around axle sleeve center.
5. deep-well pump according to claim 4, is characterized in that: described contiguous block is provided with slide rail along splined shaft axial direction, and in described slide rail, be provided with slide block, described slide block can be conflicted and be connected with safety check.
6. deep-well pump according to claim 5, is characterized in that: one end that described slide block is corresponding with safety check is provided with hemispherical elastic bumps.
7. deep-well pump according to claim 6, is characterized in that: the opposite side that described arcuate segment is connected with bend section relatively wraps up one deck rubber layer completely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420336634.XU CN203939722U (en) | 2014-06-23 | 2014-06-23 | Deep-well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420336634.XU CN203939722U (en) | 2014-06-23 | 2014-06-23 | Deep-well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203939722U true CN203939722U (en) | 2014-11-12 |
Family
ID=51859038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420336634.XU Expired - Fee Related CN203939722U (en) | 2014-06-23 | 2014-06-23 | Deep-well pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203939722U (en) |
-
2014
- 2014-06-23 CN CN201420336634.XU patent/CN203939722U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141112 Termination date: 20180623 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |