CN113577464B - Atomization effect controller for atomizer - Google Patents
Atomization effect controller for atomizer Download PDFInfo
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- CN113577464B CN113577464B CN202110845523.6A CN202110845523A CN113577464B CN 113577464 B CN113577464 B CN 113577464B CN 202110845523 A CN202110845523 A CN 202110845523A CN 113577464 B CN113577464 B CN 113577464B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M11/00—Sprayers or atomisers specially adapted for therapeutic purposes
- A61M11/001—Particle size control
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- Heart & Thoracic Surgery (AREA)
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Abstract
The invention discloses an atomization effect controller for an atomizer, which comprises a columnar hollow shell. The invention enables the gas-liquid mixture atomized by the atomizer to enter a plurality of annular array main liquid discharge holes through the main liquid inlet hole, and horizontally and transversely enter the surface of the layered adsorption type liquid separation mechanism from all sides, the layered adsorption type liquid separation mechanism can rapidly rotate under the driving action of the driving motor, at the moment, atomized particles which accord with the distance between the annular plates for the two layered adsorption type liquid separation mechanisms can be discharged outwards through the layered adsorption type liquid separation mechanism, the atomized particles which are larger than the distance can be directly adhered to the surface of the annular plate for the layered adsorption type liquid separation mechanism, and the adhered liquid particles can generate a centrifugal effect under the rotating action, the centrifugal effect forces the liquid to be thrown onto the inner wall of the gas-liquid reserved space, and finally the atomized particles are discharged outwards through the liquid discharge holes under the action of gravity, thereby improving the atomization rate.
Description
Technical Field
The invention relates to the technical field of atomizers, in particular to an atomization effect controller for an atomizer.
Background
At present, the atomizer is as long as the effect is to carry out atomization treatment with some liquid that contain the liquid medicine to make things convenient for the patient to absorb, but the atomizing liquid granule that current atomizer caused can't carry out effectual control, leads to some great granules when discharging, can directly fall down on the ground in external space, and simultaneously, great liquid granule is unfavorable for patient's absorption.
Disclosure of Invention
The present invention is directed to an atomization effect controller for an atomizer, so as to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: an atomization effect controller for an atomizer comprises a columnar hollow shell, wherein the center of the bottom of the columnar hollow shell is provided with a driving motor installation space, the columnar hollow shell is provided with a gas-liquid reserved space right above the installation space of the driving motor, the bottom of the gas-liquid reserved space is provided with a conical guide structure which gradually descends from inside to outside, the side surface of the columnar hollow shell is provided with a liquid discharge hole which is communicated with the outside space and the bottom of the side surface of the gas-liquid reserved space, an annular liquid flowing hole is arranged in the cylindrical hollow shell and positioned at the periphery of the gas-liquid reserved space, the annular liquid flow holes and the side surface of the gas-liquid reserved space pass through a plurality of annular array auxiliary liquid inlet holes, the side surface of the annular liquid flowing hole is provided with a main liquid inlet hole communicated with the external space, the bottom of the annular liquid flowing hole is communicated with the bottom of the side surface of the gas-liquid reserved space through an inclined liquid leakage hole, a driving motor is arranged in the driving motor mounting space, a motor spindle of the driving motor penetrates through the internal structure of the columnar hollow shell, the shaft body extends into the gas-liquid reserved space, a layered adsorption type liquid separation mechanism is arranged at the top end of the motor main shaft, the top end of the layered adsorption type liquid separation mechanism is provided with a hollow rotating shaft, the center inside the hollow rotating shaft is provided with a gas-liquid flowing hole communicated with two end surfaces of the hollow rotating shaft, the shaft body of the hollow rotating shaft penetrates through the top center structure of the columnar hollow shell, two main longitudinal supporting rods are arranged on the upper surface of the columnar hollow shell, an inverted cone shell is arranged at the top ends of the two main longitudinal supporting rods, the lower surface of the inverted cone shell is provided with a cone-shaped structure, and a main bearing and a main sealing ring are arranged on a shaft body of the motor main shaft and the hollow rotating shaft at the penetrating position.
Furthermore, the symmetry line of the inverted cone shell and the symmetry line of the liquid flowing hole are on the same vertical line.
Furthermore, the horizontal height of the auxiliary liquid inlet hole is consistent with the horizontal height of the longitudinal central part of the layered adsorption type liquid separation mechanism.
Further, the distance between the bottom end of the inverted conical shell and the gas-liquid flowing hole is 0-0.8 mm.
Further, the layered adsorption type liquid separation mechanism comprises a bottom mounting plate for the layered adsorption type liquid separation mechanism, a top mounting plate for the layered adsorption type liquid separation mechanism, a main shaft body mounting groove for the layered adsorption type liquid separation mechanism, a longitudinal support rod for the layered adsorption type liquid separation mechanism, an annular plate for the layered adsorption type liquid separation mechanism, a flow hole for the layered adsorption type liquid separation mechanism, a tip structure for the layered adsorption type liquid separation mechanism, a center hole for the layered adsorption type liquid separation mechanism, and a secondary shaft body mounting groove for the layered adsorption type liquid separation mechanism.
Further, the bottom center of bottom mounting panel for the layered adsorption type liquid separation mechanism is equipped with the main shaft body mounting groove for the layered adsorption type liquid separation mechanism, two vertical bracing pieces for the layered adsorption type liquid separation mechanism for the upper surface mounting of bottom mounting panel for the layered adsorption type liquid separation mechanism, two the annular plate for the layered adsorption type liquid separation mechanism is installed with the top of vertical bracing piece, the upper surface mounting of annular plate for the layered adsorption type liquid separation mechanism has another two vertical bracing pieces for the layered adsorption type liquid separation mechanism, so reciprocating, the top mounting panel for the layered adsorption type liquid separation mechanism is installed with vertical bracing piece top end for the layered adsorption type liquid separation mechanism at the top layer, the lower surface center of top mounting panel for the layered adsorption type liquid separation mechanism is equipped with the secondary shaft body mounting groove for the layered adsorption type liquid separation mechanism, the circumference side of annular plate for the layered adsorption type liquid separation mechanism is equipped with the structure for the layered adsorption type liquid separation mechanism, the lower surface of annular plate for the layered adsorption type liquid separation mechanism is equipped with the top shaft body mounting groove for the layered adsorption type liquid separation mechanism, the circular plate for the layered adsorption type liquid separation mechanism is equipped with the top surface mounting groove.
Further, the height of the longitudinal support rod for the layered adsorption type liquid separation mechanism is the same as the size of the liquid particles.
Furthermore, a shaft body at the top end of the motor spindle is arranged in the spindle body mounting groove for the layered adsorption type liquid separation mechanism.
Furthermore, a shaft body at the bottom end of the hollow rotating shaft is arranged in the auxiliary shaft body installation groove for the layered adsorption type liquid separation mechanism.
Compared with the prior art, the invention has the beneficial effects that: the invention enables the gas-liquid mixture atomized by the atomizer to enter the plurality of annular array main liquid discharge holes through the main liquid inlet hole, and horizontally and transversely enter the surface of the layered adsorption type liquid separation mechanism from all sides, the layered adsorption type liquid separation mechanism can rapidly rotate under the driving action of the driving motor, at the moment, atomized particles which accord with the distance between the annular plates for the two layered adsorption type liquid separation mechanisms can be discharged outwards through the layered adsorption type liquid separation mechanism, the atomized particles which are larger than the distance can be directly adhered to the surface of the annular plate for the layered adsorption type liquid separation mechanism, under the rotating action, the adhered liquid particles can generate a centrifugal effect which forces the liquid to be thrown onto the inner wall of the gas-liquid reserved space, and finally, the liquid is discharged outwards through the liquid discharge hole under the action of gravity, the discharged liquid medicine can be atomized, so that the atomization rate is improved, the atomized particles which accord with the specification can help a patient to absorb the liquid medicine effect, and the effective rate after atomization is improved.
Drawings
FIG. 1 is a schematic diagram of a full-sectional structure of an atomization effect controller for an atomizer according to the present invention;
FIG. 2 is a schematic structural diagram of a layered adsorption type liquid separation mechanism in an atomization effect controller for an atomizer according to the present invention;
in the figure: 1, a columnar hollow housing, 2, a driving motor installation space, 3, a gas-liquid reserved space, 4, a conical guide structure, 5, an annular liquid flow hole, 6, an auxiliary liquid inlet hole, 7, a main liquid inlet hole, 8, a liquid discharge hole, 9, a driving motor, 10, a motor spindle, 11, a main bearing, 13, a main seal ring, 14, an inclined liquid leak hole, 15, a layered adsorption type liquid separation mechanism, 151, a bottom mounting plate for the layered adsorption type liquid separation mechanism, 152, a top mounting plate for the layered adsorption type liquid separation mechanism, 153, a main shaft body installation groove for the layered adsorption type liquid separation mechanism, 154, a longitudinal support rod for the layered adsorption type liquid separation mechanism, 155, an annular plate for the layered adsorption type liquid separation mechanism, 156, a flow hole for the layered adsorption type liquid separation mechanism, 157, a tip structure for the layered adsorption type liquid separation mechanism, 158, a central hole for the layered adsorption type liquid separation mechanism, 159, a secondary shaft body adsorption type liquid separation mechanism installation groove for the layered adsorption type liquid separation mechanism, 16, a hollow rotary shaft, 17, a driving motor installation hole, 18, an inverted longitudinal support rod, 19, a conical structure, 20, and a conical structure.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, an embodiment of the present invention: the device comprises a cylindrical hollow shell 1, wherein a driving motor installation space 2 is arranged at the center of the bottom of the cylindrical hollow shell 1, a gas-liquid reserved space 3 is arranged right above the driving motor installation space 2 of the cylindrical hollow shell 1, a conical guide structure 4 gradually descending from inside to outside is arranged at the bottom of the gas-liquid reserved space 3, a liquid discharge hole 8 communicating the external space with the bottom of the side surface of the gas-liquid reserved space 3 is arranged on the side surface of the cylindrical hollow shell 1, an annular liquid flow hole 5 is arranged at the periphery of the gas-liquid reserved space 3 in the cylindrical hollow shell 1, a plurality of annular array auxiliary liquid inlet holes 6 are arranged on the side surfaces of the annular liquid flow hole 5 and the gas-liquid reserved space 3, a main liquid inlet hole 7 communicating the external space is arranged on the side surface of the annular liquid flow hole 5, and the bottom of the annular liquid flow hole 5 is communicated with the bottom of the side surface of the gas-liquid reserved space 3 through an inclined liquid leakage hole 14, a driving motor 9 is arranged in the driving motor installation space 2, a motor spindle 10 of the driving motor 9 penetrates through the internal structure of the columnar hollow shell 1, a shaft body extends into the gas-liquid reserved space 3, a layered adsorption type liquid separation mechanism 15 is arranged at the top end of the motor spindle 10, a hollow rotating shaft 16 is arranged at the top end of the layered adsorption type liquid separation mechanism 15, a gas-liquid flow hole 17 communicated with two end surfaces of the hollow rotating shaft 16 is formed in the internal center of the hollow rotating shaft 16, the shaft body of the hollow rotating shaft 16 penetrates through the top center structure of the columnar hollow shell 1, two main longitudinal support rods 18 are arranged on the upper surface of the columnar hollow shell 1, an inverted cone shell 19 is arranged at the top end of the two main longitudinal support rods 18, and a conical structure 20 is arranged on the lower surface of the inverted cone shell 19, the main bearing 11 and the main seal ring 13 are mounted on the shaft body of the motor main shaft 10 and the hollow rotating shaft 16 at the penetrating positions.
The symmetry line of the inverted conical casing 19 and the symmetry line of the gas-liquid flow hole 17 are on the same vertical line.
The horizontal height of the auxiliary liquid inlet hole 6 is consistent with the horizontal height of the longitudinal central part of the layered adsorption type liquid separation mechanism 15.
The distance between the bottom end of the inverted conical shell 19 and the gas-liquid flowing hole 17 is 0-0.8 mm.
Referring to fig. 2, the layered adsorption type liquid separation mechanism 15 includes a bottom mounting plate 151 for a layered adsorption type liquid separation mechanism, a top mounting plate 152 for a layered adsorption type liquid separation mechanism, a main shaft body mounting groove 153 for a layered adsorption type liquid separation mechanism, a longitudinal support rod 154 for a layered adsorption type liquid separation mechanism, an annular plate 155 for a layered adsorption type liquid separation mechanism, a flow hole 156 for a layered adsorption type liquid separation mechanism, a tip structure 157 for a layered adsorption type liquid separation mechanism, a center hole 158 for a layered adsorption type liquid separation mechanism, and a sub shaft body mounting groove 159 for a layered adsorption type liquid separation mechanism; the bottom center of the bottom mounting plate 151 for the layered adsorption type liquid separation mechanism is provided with a spindle body mounting groove 153 for the layered adsorption type liquid separation mechanism, the upper surface of the bottom mounting plate 151 for the layered adsorption type liquid separation mechanism is provided with two opposite longitudinal support rods 154 for the layered adsorption type liquid separation mechanism, the top of the longitudinal support rod 154 for the layered adsorption type liquid separation mechanism is provided with a ring-shaped plate 155 for the layered adsorption type liquid separation mechanism, the upper surface of the ring-shaped plate 155 for the layered adsorption type liquid separation mechanism is provided with another two longitudinal support rods 154 for the layered adsorption type liquid separation mechanism, and the steps are repeated in this way, a top mounting plate 152 for a layered adsorption type liquid separation mechanism is mounted at the top end of a longitudinal support rod 154 for the layered adsorption type liquid separation mechanism at the top layer, a central hole 158 for the layered adsorption type liquid separation mechanism is arranged at the center of the lower surface of the top mounting plate 152 for the layered adsorption type liquid separation mechanism, a secondary shaft body mounting groove 159 for the layered adsorption type liquid separation mechanism is arranged at the top end of the central hole 158 for the layered adsorption type liquid separation mechanism, a tip structure 157 for the layered adsorption type liquid separation mechanism is arranged on the circumferential side surface of an annular plate 155 for the layered adsorption type liquid separation mechanism, and a flow hole 156 for the layered adsorption type liquid separation mechanism communicated with the upper surface and the lower surface of the annular plate 155 for the layered adsorption type liquid separation mechanism is arranged at the center; the height of the longitudinal support bar 154 for the layered adsorption type liquid separation mechanism is the same as the size of the liquid particles; a shaft body at the top end of the motor spindle 10 is arranged in the spindle body mounting groove 153 for the layered adsorption type liquid separation mechanism; a shaft body having a hollow rotating shaft 16 at the bottom end is installed in the secondary shaft body installation groove 159 for the layered adsorption type liquid separation mechanism.
The specific use mode is as follows: during the operation of the invention, the gas-liquid mixture atomized by the atomizer enters the plurality of annular array main liquid discharge holes 8 through the main liquid inlet hole 7 and horizontally and transversely enters the surface of the layered adsorption type liquid separation mechanism 15 from all directions, under the driving action of the driving motor 9, the layered adsorption type liquid separation mechanism 15 can rapidly rotate, at the moment, the atomized particles which meet the distance between the annular plates 155 for the two layered adsorption type liquid separation mechanisms can be discharged outwards through the layered adsorption type liquid separation mechanism 15, the atomized particles which are larger than the distance can be directly adhered to the surface of the annular plate 155 for the layered adsorption type liquid separation mechanism, under the rotating action, the adhered liquid particles can generate a centrifugal effect, the centrifugal effect forces the liquid to be thrown onto the inner wall of the gas-liquid reserved space 3, and finally the atomized particles are discharged outwards through the liquid discharge holes 8 under the action of gravity, and meanwhile, the inclined liquid leakage holes 14 and the inverted cone shell 19 can guide the liquid adhered to the surface of the gas-liquid inside the reserved space 3 again.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (9)
1. The utility model provides an atomization effect controller for atomizer, includes cylindrical hollow shell (1), its characterized in that: the central bottom of the columnar hollow shell (1) is provided with a driving motor installation space (2), the columnar hollow shell (1) is provided with a gas-liquid reserved space (3) right above the driving motor installation space (2), the bottom of the gas-liquid reserved space (3) is provided with a conical guide structure (4) gradually descending from inside to outside, the side of the columnar hollow shell (1) is provided with a liquid discharge hole (8) communicating the external space with the bottom of the side of the gas-liquid reserved space (3), the inside of the columnar hollow shell (1) is provided with an annular liquid flow hole (5) at the periphery of the gas-liquid reserved space (3), the side of the annular liquid flow hole (5) and the gas-liquid reserved space (3) is communicated through a plurality of annular array auxiliary liquid inlet holes (6), the side of the annular liquid flow hole (5) is provided with a main liquid inlet hole (7) communicating the external space, the bottom of the annular liquid flow hole (5) is communicated with the bottom of the side of the gas-liquid reserved space (3) through an inclined liquid leakage hole (14), a driving motor (9) is installed in the driving motor installation space (2), and a spindle motor (10) penetrates through the internal separation structure of the columnar hollow motor installation space (1) and a spindle body (10) and a spindle motor is installed on the spindle body (10), the top installation hollow rotation axis (16) of layering absorption formula liquid separation mechanism (15), the inside center of hollow rotation axis (16) is equipped with gas-liquid flow hole (17) of its both ends face of intercommunication, the top central structure of cylindrical hollow shell (1) is run through to the axis body of hollow rotation axis (16), two main longitudinal support pole (18) of last surface mounting of cylindrical hollow shell (1), two an inverted cone shell (19) is installed on the top of main longitudinal support pole (18), the lower surface of inverted cone shell (19) is equipped with conical structure (20), main bearing (11) and main sealing washer (13) are all installed on the axis body that runs through the position in motor main shaft (10) and hollow rotation axis (16).
2. The atomization effect controller for the atomizer according to claim 1, wherein: the symmetry line of the inverted cone shell (19) and the symmetry line of the gas-liquid flowing hole (17) are on the same vertical line.
3. The atomization effect controller for the atomizer according to claim 1, wherein: the horizontal height of the auxiliary liquid inlet hole (6) is consistent with the horizontal height of the longitudinal central part of the layered adsorption type liquid separation mechanism (15).
4. The atomization effect controller for the atomizer according to claim 1, wherein: the distance between the bottom end of the inverted conical shell (19) and the gas-liquid flowing hole (17) is 0-0.8 mm.
5. The atomization effect controller for the atomizer according to claim 1, wherein: the layered adsorption type liquid separation mechanism (15) comprises a bottom mounting plate (151) for the layered adsorption type liquid separation mechanism, a top mounting plate (152) for the layered adsorption type liquid separation mechanism, a main shaft body mounting groove (153) for the layered adsorption type liquid separation mechanism, a longitudinal support rod (154) for the layered adsorption type liquid separation mechanism, an annular plate (155) for the layered adsorption type liquid separation mechanism, a flow hole (156) for the layered adsorption type liquid separation mechanism, a tip structure (157) for the layered adsorption type liquid separation mechanism, a central hole (158) for the layered adsorption type liquid separation mechanism and a secondary shaft body mounting groove (159) for the layered adsorption type liquid separation mechanism.
6. The atomization effect controller for the atomizer according to claim 5, wherein: a main shaft body mounting groove (153) for the layered adsorption type liquid separation mechanism is arranged at the center of the bottom mounting plate (151) for the layered adsorption type liquid separation mechanism, the upper surface of the bottom mounting plate (151) for the layered adsorption type liquid separation mechanism is provided with two opposite longitudinal support rods (154) for the layered adsorption type liquid separation mechanism, the top of the longitudinal support rods (154) for the two layered adsorption type liquid separation mechanisms is provided with a ring-shaped plate (155) for the layered adsorption type liquid separation mechanism, the upper surface of the annular plate (155) for the layered adsorption type liquid separation mechanism is provided with another two longitudinal support rods (154) for the layered adsorption type liquid separation mechanism, so as to reciprocate, a top mounting plate (152) for the layered adsorption type liquid separation mechanism is arranged at the top end of the longitudinal support rod (154) for the layered adsorption type liquid separation mechanism at the top layer, the center of the lower surface of the top mounting plate (152) for the layered adsorption type liquid separation mechanism is provided with a central hole (158) for the layered adsorption type liquid separation mechanism, the top end of the central hole (158) for the layered adsorption type liquid separation mechanism is provided with an auxiliary shaft body mounting groove (159) for the layered adsorption type liquid separation mechanism, the circumferential side surface of the annular plate (155) for the layered adsorption type liquid separation mechanism is provided with a tip structure (157) for the layered adsorption type liquid separation mechanism, the center of the annular plate (155) for the layered adsorption type liquid separation mechanism is provided with a flow hole (156) for the layered adsorption type liquid separation mechanism, which is communicated with the upper surface and the lower surface of the annular plate.
7. The atomization effect controller for the atomizer according to claim 6, wherein: the height of the longitudinal support rod (154) for the layered adsorption type liquid separation mechanism is the same as the size of the liquid particles.
8. The atomization effect controller for the atomizer according to claim 6, wherein: and a shaft body at the top end of the motor spindle (10) is arranged in the spindle body mounting groove (153) for the layered adsorption type liquid separation mechanism.
9. The atomization effect controller for the atomizer according to claim 6, wherein: a shaft body at the bottom end of a hollow rotating shaft (16) is mounted in the auxiliary shaft body mounting groove (159) for the layered adsorption type liquid separation mechanism.
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| CN202110845523.6A CN113577464B (en) | 2021-07-26 | 2021-07-26 | Atomization effect controller for atomizer |
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| CN202110845523.6A CN113577464B (en) | 2021-07-26 | 2021-07-26 | Atomization effect controller for atomizer |
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| CN113577464A CN113577464A (en) | 2021-11-02 |
| CN113577464B true CN113577464B (en) | 2022-12-06 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1197234A (en) * | 1966-06-20 | 1970-07-01 | Wallace Murray Corp | Gas Treating Apparatus |
| WO2019162371A1 (en) * | 2018-02-26 | 2019-08-29 | Nerudia Limited | Device, system and method |
| CN112827027A (en) * | 2020-12-31 | 2021-05-25 | 洛阳市中心医院（郑州大学附属洛阳中心医院） | Children's aerosol therapeutic instrument |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4578185B2 (en) * | 2003-12-12 | 2010-11-10 | 大正製薬株式会社 | Sub-quantitative dispensing device for aerosol containers |
| US7721729B2 (en) * | 2005-03-09 | 2010-05-25 | Ric Investments, Llc | Nebulizing drug delivery device for ventilator |
-
2021
- 2021-07-26 CN CN202110845523.6A patent/CN113577464B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1197234A (en) * | 1966-06-20 | 1970-07-01 | Wallace Murray Corp | Gas Treating Apparatus |
| WO2019162371A1 (en) * | 2018-02-26 | 2019-08-29 | Nerudia Limited | Device, system and method |
| CN112827027A (en) * | 2020-12-31 | 2021-05-25 | 洛阳市中心医院（郑州大学附属洛阳中心医院） | Children's aerosol therapeutic instrument |
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Effective date of registration: 20221111 Address after: 255000 No. 9, Guojing Avenue, economic development zone, Gaoqing County, Zibo City, Shandong Province Applicant after: Victor (Shandong) Biotechnology Co.,Ltd. Address before: Room 802, unit 3, building 12, Wenquan home, Majiabao Dongli, Fengtai District, Beijing 100068 Applicant before: Xu Chongyun |
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