CN112344132B - Portable medical oxygen generator - Google Patents
Portable medical oxygen generator Download PDFInfo
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- CN112344132B CN112344132B CN202011037385.0A CN202011037385A CN112344132B CN 112344132 B CN112344132 B CN 112344132B CN 202011037385 A CN202011037385 A CN 202011037385A CN 112344132 B CN112344132 B CN 112344132B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M7/00—Details of attaching or adjusting engine beds, frames, or supporting-legs on foundation or base; Attaching non-moving engine parts, e.g. cylinder blocks
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
- C01B13/02—Preparation of oxygen
- C01B13/0229—Purification or separation processes
- C01B13/0248—Physical processing only
- C01B13/0259—Physical processing only by adsorption on solids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H27/00—Step-by-step mechanisms without freewheel members, e.g. Geneva drives
- F16H27/04—Step-by-step mechanisms without freewheel members, e.g. Geneva drives for converting continuous rotation into a step-by-step rotary movement
- F16H27/08—Step-by-step mechanisms without freewheel members, e.g. Geneva drives for converting continuous rotation into a step-by-step rotary movement with driving toothed gears with interrupted toothing
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention belongs to the technical field of oxygen generation equipment, and particularly relates to a portable medical oxygen generator which comprises an oxygen generator main body, wherein a controllable double-head motor is fixedly installed on the lower end face of the oxygen generator main body, four groups of symmetrical support groups are further installed on the lower end face of the oxygen generator main body, each support group comprises a rotating shaft, an L-shaped support block, a first rotating gear, a second rotating gear, a third rotating gear and a main gear, the rotating shaft, the L-shaped support blocks are rotatably installed on the oxygen generator main body and fixedly connected with the first rotating gears, the second rotating gear and the third rotating gear are fixedly connected, the third rotating gear is in transmission connection with the main gear, the second rotating gear is an incomplete gear, the four first support blocks and the four second support blocks are further fixedly installed on the lower end face of the oxygen generator main body, and the first support blocks and the second support blocks are respectively located on two sides of the L-shaped support blocks. The purpose is as follows: the problem of the life that current oxygenerator structural defect leads to is low is solved.
Description
Technical Field
The invention belongs to the technical field of oxygen generation equipment, and particularly relates to a portable medical oxygen generator.
Background
Oxygen is used as essential gas for human survival, and plays a very important role in daily life, particularly in the process of medical emergency treatment, and generally, prepared oxygen is stored in a steel cylinder at low temperature and pressure for use at any time, but the use is very inconvenient.
Therefore, the oxygen generator can be used for medical first aid, and healthy people can inhale oxygen and promote blood circulation to make the head clear, eliminate fatigue and effectively improve the working efficiency.
A medical oxygen generator is based on pressure-varying adsorption technology and features that molecular sieve is filled in it by physical adsorption and desorption, the nitrogen in air is adsorbed when it is pressurized, and the residual unabsorbed oxygen is collected and purified to obtain high-purity oxygen.
The Chinese utility model patent (publication number: CN207435023U) discloses a portable medical oxygen generator, which can make the medical oxygen generator body convenient to move and carry by arranging a push handle and a universal wheel, and can support the medical oxygen generator body by using a supporting disc by arranging the supporting disc, a placing cavity, a stepping motor, a screw guide sleeve, a screw, a movable block, a sliding chute and a bearing seat, and has the advantages of high supporting speed and convenient operation, so that the medical oxygen generator body can be fixed on the ground when in use and is not easy to topple over, and the supporting pressure of the universal wheel is relieved.
In the system oxygen process of oxygenerator, oxygenerator itself can produce the vibration, but, above-mentioned patent supports the oxygenerator through mutually supporting of screw rod guide pin bushing and screw rod in the course of the work of oxygenerator for the whole quality of oxygenerator concentrates on the screw thread of screw rod guide pin bushing and screw rod, thereby leads to the screw thread to damage very easily, and whole life is low.
Disclosure of Invention
The purpose of the invention is: aims to provide a portable medical oxygen generator which is used for solving the problem of short service life caused by the structural defects of the existing oxygen generator.
In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:
a portable medical oxygen generator comprises an oxygen generator main body, wherein a controllable double-end motor is fixedly mounted on the lower end face of the oxygen generator main body, four groups of symmetrical supporting groups are further mounted on the lower end face of the oxygen generator main body, the supporting groups comprise a rotating shaft, an L-shaped supporting block, a first rotating gear, a second rotating gear, a third rotating gear and a main gear which are rotatably mounted on the oxygen generator main body, the L-shaped supporting block is hinged to the oxygen generator main body through the rotating shaft, the main gear is fixedly connected with an output shaft of the controllable double-end motor and is not meshed with the main gear fixedly connected with the output shaft of the controllable double-end motor and the main gear fixedly mounted on the output shaft of the controllable double-end motor, the L-shaped supporting block is far away from one side of the controllable double-end motor and is rotatably mounted with a roller, and is fixedly connected with the first rotating gear, second rotating gear and third rotating gear fixed connection, third rotating gear is connected with the master gear transmission, second rotating gear is incomplete gear, second rotating gear is in the engaged state with first rotating gear at the rotation in-process, second rotating gear breaks away from the engaged state with first rotating gear when oxygenerator work with promote the oxygenerator, the lower terminal surface of oxygenerator main part still fixed mounting has four first supporting shoes and four second supporting shoes, first supporting shoe and second supporting shoe are located L shape supporting shoe both sides respectively.
Further limiting, an arc-shaped surface is further arranged between the outer side surface and the lower end surface of the L-shaped supporting block, the circle center of the arc-shaped surface is overlapped with the central axis of the rotating shaft, and the arc line where the arc-shaped surface is located is tangent to the arc line where the outer contour of the roller is located. Such structural design provides the transition through the conversion of arc face form, reduces the form conversion in-process, to the impact that L shape supporting shoe, axis of rotation and oxygenerator main body formed.
Further, a gear transmission group is further arranged between the third rotating gear and the main gear on the lower end surface of the oxygen generator main body. The structure design completes the transmission connection between the third rotating gear and the main gear through the gear transmission group, and has the advantages of high transmission efficiency, compact structure, stable transmission ratio, reliable work and long service life compared with the transmission modes such as chain transmission, belt transmission and the like.
Further limiting, the gear rotating group is a fourth rotating gear which is rotatably arranged on the lower end face of the main body of the oxygen generator, and the fourth rotating gear is respectively meshed with the third rotating gear and the main gear. Due to the structural design, the fourth rotating gear is used for completing the transmission connection between the third rotating gear and the main gear, and the number of gears can be reduced and the manufacturing cost can be reduced compared with the transmission of a plurality of gears.
Further limiting, a first groove and a second groove are further formed in the L-shaped supporting block. According to the structural design, the first groove and the second groove correspond to the first supporting block and the second supporting block respectively, when the first supporting block/the second supporting block abut against the L-shaped supporting block, the first supporting block/the second supporting block are located in the first groove/the second groove, transverse thrust exerted on the rotating shaft of the L-shaped supporting block by the L-shaped supporting block is supported to a certain extent, and the service life of the rotating shaft of the L-shaped supporting block is prolonged.
Further limited, the controllable double-head motor is a servo double-head motor. Such structural design, servo motor is relative to step motor, and servo motor is when low-speed rotation, and the operation is more steady, more is applicable to the low-speed operation operating mode of this device.
Further, the lower end surface of the L-shaped supporting block is a plane. By adopting the structure design, the contact area between the L-shaped supporting block and the ground is larger, and the placement of the oxygen generator is more stable.
Further limiting, the lower end face of the L-shaped supporting block is fixedly provided with a rubber block. By adopting the structural design, the vibration of the main body of the oxygen generator is absorbed to a certain extent through the rubber block, so that the oxygen generator is further stabilized; meanwhile, when the oxygen generator is converted from the moving state to the using state, the impact of the L-shaped supporting block on the ground is absorbed.
The invention adopting the technical scheme has the advantages that:
when the oxygen generator works, even if the main body of the oxygen generator vibrates during working, the first rotating gear and the second rotating gear are disengaged, the L-shaped supporting block is supported by the rotating shaft and the first supporting block instead of being limited by the engagement of the first rotating gear and the second rotating gear, all the gears are in a state without mutual application force, and the damage caused by vibration of the gears in a stress state can be avoided;
when promoting, first rotating gear and second rotating gear are in the disengagement state, promote the in-process, because the vibration that the ground is uneven causes, also can not lead to the fact the influence to being in all gears that do not have the force state of exerting each other, avoid taking place the vibration because of being in the stress state between the gear, and the problem of the damage that leads to the life of extension each gear, and then the life of extension oxygenerator.
Drawings
The invention is further illustrated by the non-limiting examples given in the accompanying drawings;
FIG. 1 is a schematic structural view of a portable medical oxygen generator according to an embodiment of the present invention in a use state;
FIG. 2 is a schematic structural view of a driving state in an embodiment of a portable medical oxygen generator according to the present invention;
FIG. 3 is a schematic structural diagram illustrating a usage status of a support assembly in an embodiment of a portable medical oxygen generator according to the present invention;
FIG. 4 is a schematic structural diagram illustrating a driving state of a support member in an embodiment of a portable medical oxygen generator according to the present invention;
the main element symbols are as follows:
an oxygen generator main body 1, a rotating shaft 10, a controllable double-end motor 2,
An L-shaped supporting block 3, a main gear 30, a first rotating gear 31, a second rotating gear 32, a third rotating gear 33, a fourth rotating gear 34,
A roller 4, an arc surface 40,
A first supporting block 51, a first groove 510, a second supporting block 52, and a second groove 520.
Detailed Description
The present invention will be described in detail with reference to the drawings and specific embodiments, wherein like reference numerals are used for similar or identical parts in the drawings or the description, and implementations not shown or described in the drawings are known to those of ordinary skill in the art. In addition, directional terms, such as "upper", "lower", "top", "bottom", "left", "right", "front", "rear", and the like, used in the embodiments are only directions referring to the drawings, and are not intended to limit the scope of the present invention.
As shown in fig. 1 to 4, the portable medical oxygen generator of the present invention comprises an oxygen generator main body 1, a controllable double-headed motor 2 is fixedly installed on the lower end surface of the oxygen generator main body 1, four groups of symmetrical support groups are further installed on the lower end surface of the oxygen generator main body 1, each support group comprises a rotating shaft 10 rotatably installed on the oxygen generator main body 1, an L-shaped support block 3, a first rotating gear 31, a second rotating gear 32, a third rotating gear 33 and a main gear 30, the L-shaped support block 3 is hinged on the oxygen generator main body 1 through the rotating shaft 10, wherein two main gears 30 are fixedly connected with output shafts of the controllable double-headed motor 2, the main gear 30 which is not fixedly connected with the output shafts of the controllable double-headed motor 2 is engaged with the corresponding main gear 30 fixedly installed on the output shafts of the controllable double-headed motor 2, and a roller 4 is rotatably installed on one side of the L-shaped support block 3 away from the controllable double-headed motor 2, the L-shaped supporting blocks 3 are fixedly connected with the first rotating gear 31, the second rotating gear 32 is fixedly connected with the third rotating gear 33, the third rotating gear 33 is in transmission connection with the main gear 30, the second rotating gear 32 is an incomplete gear, the second rotating gear 32 is in a meshing state with the first rotating gear 31 in the rotating process, the second rotating gear 32 is out of the meshing state with the first rotating gear 31 when the oxygenerator works and pushes the oxygenerator, four first supporting blocks 51 and four second supporting blocks 52 are further fixedly mounted on the lower end face of the oxygenerator main body 1, and the first supporting blocks 51 and the second supporting blocks 52 are respectively located on two sides of the L-shaped supporting blocks 3.
An arc surface 40 is further arranged between the outer side surface and the lower end surface of the L-shaped supporting block 3, the circle center of the arc surface 40 is overlapped with the central axis of the rotating shaft 10, and the arc line where the arc surface 40 is located is tangent to the arc line where the outer contour of the roller 4 is located. Transition is provided for form conversion through the arc-shaped surface 40, and impact on the L-shaped supporting block 3, the rotating shaft 10 and the oxygen generator main body 1 in the form conversion process is reduced.
A gear transmission group is also arranged on the lower end surface of the oxygen generator main body 1 between the third rotating gear 33 and the main gear 30. The transmission connection between the third rotating gear 33 and the main gear 30 is completed through the gear transmission group, and compared with transmission modes such as chain transmission, belt transmission and the like, the transmission device has the advantages of high transmission efficiency, compact structure, stable transmission ratio, reliable work and long service life.
The gear rotating group is a fourth rotating gear 34 which is rotatably arranged on the lower end surface of the main body 1 of the oxygen generator, and the fourth rotating gear 34 is respectively meshed with the third rotating gear 33 and the main gear 30. The fourth rotating gear 34 is used for completing the transmission connection between the third rotating gear 33 and the main gear 30, so that the number of gears can be reduced compared with the transmission of a plurality of gears, and the manufacturing cost can be reduced.
The L-shaped support block 3 is further provided with a first groove 510 and a second groove 520. The first groove 510 and the second groove 520 correspond to the first supporting block 51 and the second supporting block 52, respectively, when the first supporting block 51/the second supporting block 52 abut against the L-shaped supporting block 3, the first supporting block 51/the second supporting block 52 are located in the first groove 510/the second groove 520, and the transverse thrust applied to the rotating shaft 10 of the L-shaped supporting block 3 by the L-shaped supporting block 3 is supported to a certain extent, so that the service life of the rotating shaft of the L-shaped supporting block 3 is prolonged.
The controllable double-head motor 2 is a servo double-head motor. Compared with a stepping motor, the servo motor is more stable in operation when rotating at a low speed, and is more suitable for the low-speed operation condition of the device.
The lower end surface of the L-shaped supporting block 3 is a plane. The contact area of L shape supporting shoe 3 and ground is bigger, and the oxygenerator is placed more stably.
The lower end face of the L-shaped supporting block 3 is fixedly provided with a rubber block. The vibration of the oxygenerator main body 1 is absorbed to a certain extent through the rubber block, so that the oxygenerator is further stabilized; meanwhile, when the oxygen generator is converted from the moving state to the using state, the impact of the L-shaped supporting block 3 on the ground is absorbed.
In this embodiment, when the oxygen generator is operated, as shown in fig. 1 and 3, the lower end surface of the L-shaped support block 3 contacts with the ground, the oxygen generator body 1 is supported by the L-shaped support block 3, and is stably placed, at this time, the first rotation gear 31 corresponds to the toothless part of the second rotation gear 32, i.e. the first rotation gear 31 is disengaged from the second rotation gear 32, the first support block 51 is located in the first groove 510, the L-shaped support block 3 and the oxygen generator body 1 are connected through the first support block 51 and the rotation shaft 10,
when the movement is needed, the controllable double-headed motor 2 is started, so that the main gear 30 rotates, the first rotating gear 31 and the second rotating gear 32 are re-engaged, the main gear 30 continues to rotate, the first rotating gear 31 is further driven to rotate through the second rotating gear 32, the left L-shaped supporting block 3 is driven to rotate anticlockwise, the right L-shaped supporting block 3 rotates clockwise until the first rotating gear 31 is re-disengaged from the second rotating gear 32, at the moment, the second supporting block 52 is located in the second groove 520, and the L-shaped supporting block 3 and the oxygenerator main body 1 are connected through the second supporting block 52 and the rotating shaft 10 (as shown in fig. 2 and 4), and at the moment, the oxygenerator can be pushed;
after the supporting block is moved to the designated position, the controllable double-head motor 2 is controlled to rotate reversely, so that the L-shaped supporting block 3 is contacted with the ground again.
The portable medical oxygen generator provided by the invention is described in detail above. The description of the specific embodiments is only intended to facilitate an understanding of the method of the invention and its core ideas. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (8)
1. A portable medical oxygen generator is characterized in that: comprises an oxygenerator main body (1), the lower end face of the oxygenerator main body (1) is fixedly provided with a controllable double-head motor (2), the lower end face of the oxygenerator main body (1) is also provided with four groups of symmetrical supporting groups, each supporting group comprises a rotating shaft (10), an L-shaped supporting block (3), a first rotating gear (31), a second rotating gear (32), a third rotating gear (33) and a main gear (30) which are rotatably arranged on the oxygenerator main body (1), the L-shaped supporting blocks (3) are hinged on the oxygenerator main body (1) through the rotating shafts (10), wherein the two main gears (30) are fixedly connected with the output shafts of the controllable double-head motor (2) and are not meshed with the main gear (30) fixedly connected with the output shafts of the controllable double-head motor (2) and the main gear (30) fixedly arranged on the output shafts of the controllable double-head motor (2), a roller (4) is rotatably arranged on one side of the L-shaped supporting block (3) far away from the controllable double-head motor (2), the L-shaped supporting block (3) is fixedly connected with a first rotating gear (31), a second rotating gear (32) is fixedly connected with a third rotating gear (33), the third rotating gear (33) is in transmission connection with the main gear (30), the second rotating gear (32) is an incomplete gear, the second rotating gear (32) is in a meshed state with the first rotating gear (31) in the rotating process, when the second rotating gear (32) works and pushes the oxygen generator, is disengaged from the first rotating gear (31), four first supporting blocks (51) and four second supporting blocks (52) are fixedly arranged on the lower end surface of the oxygen generator main body (1), the first supporting block (51) and the second supporting block (52) are respectively positioned at two sides of the L-shaped supporting block (3).
2. The portable medical oxygen generator as claimed in claim 1, wherein: an arc surface (40) is further arranged between the outer side surface and the lower end surface of the L-shaped supporting block (3), the circle center of the arc surface (40) is overlapped with the central axis of the rotating shaft (10), and the arc line where the arc surface (40) is located is tangent to the arc line where the outer contour of the roller (4) is located.
3. The portable medical oxygen generator as claimed in claim 1, wherein: and a gear transmission group is further arranged between the third rotating gear (33) and the main gear (30) on the lower end surface of the oxygen generator main body (1).
4. A portable medical oxygen generator as claimed in claim 3, wherein: the gear rotating group is a fourth rotating gear (34) which is rotatably arranged on the lower end face of the oxygen generator main body (1), and the fourth rotating gear (34) is respectively meshed with the third rotating gear (33) and the main gear (30).
5. The portable medical oxygen generator as claimed in claim 1, wherein: a first groove (510) and a second groove (520) are further formed in the L-shaped supporting block (3).
6. The portable medical oxygen generator as claimed in claim 1, wherein: the controllable double-head motor (2) is a servo double-head motor.
7. The portable medical oxygen generator as claimed in claim 1, wherein: the lower end face of the L-shaped supporting block (3) is a plane.
8. The portable medical oxygen generator as claimed in claim 7, wherein: and a rubber block is fixedly arranged on the lower end face of the L-shaped supporting block (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011037385.0A CN112344132B (en) | 2020-09-28 | 2020-09-28 | Portable medical oxygen generator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011037385.0A CN112344132B (en) | 2020-09-28 | 2020-09-28 | Portable medical oxygen generator |
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| CN112344132A CN112344132A (en) | 2021-02-09 |
| CN112344132B true CN112344132B (en) | 2022-03-22 |
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| CN202011037385.0A Active CN112344132B (en) | 2020-09-28 | 2020-09-28 | Portable medical oxygen generator |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113912016B (en) * | 2021-10-20 | 2023-02-17 | 杭州博大净化设备有限公司 | Portable plateau oxygenerator |
| CN116040585A (en) * | 2022-12-30 | 2023-05-02 | 佳业科技(东台)有限公司 | Portable medical oxygenerator |
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| CN107366801A (en) * | 2017-07-24 | 2017-11-21 | 合肥康居人智能科技有限公司 | A kind of medical oxygen generator running protection device |
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| CN208535457U (en) * | 2018-07-13 | 2019-02-22 | 广州云腾医药设备有限公司 | A kind of oxygenerator vibration-damping radiating device |
| CN208750292U (en) * | 2018-07-04 | 2019-04-16 | 浙江双联机械有限公司 | A kind of mobile conveyor of gear reduction unit |
| CN110425399A (en) * | 2019-09-02 | 2019-11-08 | 广东电网有限责任公司 | A kind of Portable column upper switch for automation control field test |
| CN111539230A (en) * | 2020-04-22 | 2020-08-14 | 潍坊科技学院 | English translation system |
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2020
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| CN201059407Y (en) * | 2007-07-04 | 2008-05-14 | 宁波特信贸易有限公司 | Rolling type umbrella shank |
| CN107366801A (en) * | 2017-07-24 | 2017-11-21 | 合肥康居人智能科技有限公司 | A kind of medical oxygen generator running protection device |
| CN207435023U (en) * | 2017-10-01 | 2018-06-01 | 木台力甫·巴拉提 | A kind of Portable medical oxygen producing machine |
| CN208750292U (en) * | 2018-07-04 | 2019-04-16 | 浙江双联机械有限公司 | A kind of mobile conveyor of gear reduction unit |
| CN208535457U (en) * | 2018-07-13 | 2019-02-22 | 广州云腾医药设备有限公司 | A kind of oxygenerator vibration-damping radiating device |
| CN110425399A (en) * | 2019-09-02 | 2019-11-08 | 广东电网有限责任公司 | A kind of Portable column upper switch for automation control field test |
| CN111539230A (en) * | 2020-04-22 | 2020-08-14 | 潍坊科技学院 | English translation system |
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Denomination of invention: A portable medical oxygen generator Effective date of registration: 20221213 Granted publication date: 20220322 Pledgee: Zhejiang Tailong Commercial Bank Co.,Ltd. Hangzhou Fuyang sub branch Pledgor: HANGZHOU BODA PURIFYING EQUIPMENT Co.,Ltd. Registration number: Y2022980027005 |