CN113804278B - Idle outage weighing scale - Google Patents
Idle outage weighing scale Download PDFInfo
- Publication number
- CN113804278B CN113804278B CN202111231330.8A CN202111231330A CN113804278B CN 113804278 B CN113804278 B CN 113804278B CN 202111231330 A CN202111231330 A CN 202111231330A CN 113804278 B CN113804278 B CN 113804278B
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- fixedly connected
- transmission system
- idle
- display
- pressure spring
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- 238000005303 weighing Methods 0.000 title abstract description 14
- 230000005540 biological transmission Effects 0.000 claims abstract description 28
- 238000005096 rolling process Methods 0.000 claims description 11
- 230000005389 magnetism Effects 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 2
- 239000012528 membrane Substances 0.000 claims 1
- 238000004804 winding Methods 0.000 claims 1
- 238000005381 potential energy Methods 0.000 abstract description 9
- 230000037396 body weight Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 2
- 230000005483 Hooke's law Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000037213 diet Effects 0.000 description 1
- 235000005911 diet Nutrition 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/44—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing persons
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G23/00—Auxiliary devices for weighing apparatus
- G01G23/18—Indicating devices, e.g. for remote indication; Recording devices; Scales, e.g. graduated
- G01G23/36—Indicating the weight by electrical means, e.g. using photoelectric cells
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention relates to the technical field of electronic scales and discloses an idle power-off body weight scale which comprises a scale body, a force transfer system, a sensor, a display, a shell and a battery box, wherein sliding grooves are formed in two sides, located in the middle, of the bottom surface of the force transfer system. According to the invention, the shell, the conductive rod, the sliding chute, the contact, the bearing block and the pressure spring are designed, when a person stands on the balance body for weighing, the balance body drives the force transmission system to overcome potential energy of the pressure spring to slide downwards through the weight of the person, meanwhile, the sliding chute positioned at the lower side of the force transmission system also slides downwards along with the potential energy of the pressure spring, when the sensor is contacted with the bearing block, the contact at the top of the sliding chute is contacted with the conductive rod, so that the display is connected by a wire, the weight of the user is displayed on the display, when the electronic balance is idle, the balance body drives the force transmission system to move upwards through the potential energy of the pressure spring, the conductive rod and the contact are separated and powered off, the power off when the electronic balance is idle is realized, and the situation that the anode and the cathode of a battery box are still electrified is avoided, and the anode and the cathode of the battery box are corroded is avoided.
Description
Technical Field
The invention relates to the technical field of electronic scales, in particular to an idle power-off weighing scale.
Background
The electronic balance is a tool for measuring the mass of an object by utilizing the Hooke's law or the lever balance principle of force, and can be divided into three categories of a mechanical balance, an electronic balance and an electromechanical combined balance according to the structural principle, wherein the electronic balance mainly comprises a bearing system (such as a scale pan and a scale body), a force transmission conversion system (such as a lever force transmission system and a sensor), a value indicating system (such as a dial and an electronic display instrument) and the like.
The electronic weight scale is one of the electronic scales, and is an intelligent body weight measuring instrument, and the electronic weight scale is mainly used for facilitating people to know own weight, so that the body weight is controlled by movement or diet control and the like, and further the purpose of controlling the physical health of the people is achieved.
Disclosure of Invention
Aiming at the defects of the prior electronic weighing scale in the use process, the invention provides the idle power-off weighing scale, which has the advantages of automatic power-off in the idle state of the electronic weighing scale and good personal privacy protection effect on a user, and solves the technical problems in the prior art.
The invention provides the following technical scheme: the utility model provides a weight scale of idle outage, includes the balance body, force transfer system, sensor, display, shell and battery case, the spout has been seted up to the both sides that force transfer system bottom surface is located the middle part, the middle part fixedly connected with contact of spout bottom, the inside bottom side of shell and the corresponding department fixedly connected with bearing block of sensor, the top fixedly connected with pressure spring of bearing block, the inside of shell is located the positive negative pole department fixedly connected with conducting rod of battery case.
Preferably, the inside of the scale body is provided with movable grooves on two sides of the upper part of the display, a visual hole is formed in a gap between the two movable grooves, a magnetic rolling rod is movably arranged in the movable grooves, and a shading film is movably connected to the outer side of the magnetic rolling rod.
Preferably, the inside of the scale body is located the outside fixedly connected with electromagnetism piece in movable groove, the inside in movable groove is located the top fixedly connected with magnet in one side of the viewport, the positive negative pole of display is fixedly connected with wire respectively.
Preferably, the wire is fixedly wound on the outer side of the electromagnetic block, and the other end of the wire is electrically connected with the contact.
Preferably, the pressure spring is movably sleeved on the outer side of the sensor, and the top of the pressure spring is fixedly connected with the bottom of the force transmission system at the outer side of the sensor.
Preferably, the positions of the conductive rods correspond to the sliding grooves, the tops of the conductive rods extend into the sliding grooves, and the middle lower parts of the two conductive rods are respectively and electrically connected with the positive electrode and the negative electrode of the battery box.
Preferably, the magnetism of the magnetic rolling rod is the same as that of the electromagnetic block, the magnetism of the magnetic rolling rod is the same as that of the magnet, the electromagnetic block is not magnetized when the lead outside the electromagnetic block is not electrified, and the magnetic force of the electromagnetic block is three times that of the magnet when the lead is electrified and the electromagnetic block is magnetized.
Preferably, the shell is arranged in a rectangular bowl shape and wraps the outer sides of the balance body, the force transmission system and the sensor, and an opening which is convenient for taking and placing the battery is formed in the position of the shell, which is located at the battery box.
Preferably, the shading film is rolled on the outer side of the magnetic rolling rod, and the top end of the shading film is fixedly connected with the side wall, close to the electromagnetic block, of the movable groove.
The invention has the following beneficial effects:
1. according to the invention, the shell, the conductive rod, the sliding chute, the contact, the bearing block and the pressure spring are designed, when a person stands on the balance body for weighing, the balance body drives the force transmission system to overcome potential energy of the pressure spring to slide downwards through the weight of the person, meanwhile, the sliding chute positioned at the lower side of the force transmission system also slides downwards along with the potential energy of the pressure spring, when the sensor is contacted with the bearing block, the contact at the top of the sliding chute is contacted with the conductive rod, so that the display is connected by a wire, the weight of the user is displayed on the display, when the electronic balance is idle, the balance body drives the force transmission system to move upwards through the potential energy of the pressure spring, the conductive rod and the contact are separated and powered off, the power off when the electronic balance is idle is realized, and the situation that the anode and the cathode of a battery box are still electrified is avoided, and the anode and the cathode of the battery box are corroded is avoided.
2. According to the invention, the movable groove, the magnetic rolling rod, the shading film, the electromagnetic block, the magnet and the lead are designed, when the conductive rod is connected with the contact, the lead wound on the outer side of the electromagnetic block is electrified, so that the magnetic force of the electromagnetic block is increased, the magnetic rolling rod is driven to roll by magnetic repulsive force to open the shading film, the user is prevented from knowing the weight of the user, and meanwhile, when the user gets down from the electronic weighing scale, the weighing scale is directly powered off, the electronic weighing scale is prevented from recording the weight of the user and being known by the next user, and the privacy of the user is protected.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view showing a structure of the invention in a sliding state;
FIG. 3 is an enlarged schematic view of the structure of FIG. 1A according to the present invention;
FIG. 4 is an enlarged schematic view of the structure of FIG. 1B according to the present invention;
fig. 5 is an enlarged view of the structure of fig. 1 at C according to the present invention.
In the figure: 1. a scale body; 2. a force transfer system; 21. a chute; 22. a contact; 3. a sensor; 4. a display; 41. a movable groove; 42. a viewing aperture; 43. a magnetic roller; 431. a light shielding film; 44. an electromagnetic block; 45. a magnet; 46. a wire; 5. a housing; 51. a bearing block; 52. a pressure spring; 6. a battery case; 61. a conductive rod; 7. and a battery.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 and 2, a weight scale capable of being in idle outage comprises a scale body 1, wherein a force transmission system 2 is fixedly connected to the lower side of the scale body 1, sensors 3 are fixedly connected to four corners of the lower side of the force transmission system 2, a display 4 is arranged on the upper surface of the interior of the scale body 1, a shell 5 is slidably connected to the side face of the scale body 1, a battery box 6 is fixedly connected to the middle part of the interior of the shell 5, a battery 7 is arranged in the battery box 6, the shell 5 is in a rectangular bowl shape and wraps the outer sides of the scale body 1, the force transmission system 2 and the sensors 3, sliding and protection of the scale body 1 and the force transmission system 2 are facilitated, and an opening for conveniently taking and placing batteries is formed in the position of the shell 5, which is located in the battery box 6.
Referring to fig. 1, 2, 3, 4 and 5, the sliding grooves 21 are formed on two sides of the bottom surface of the force transfer system 2 at the middle, the contacts 22 are fixedly connected to the middle of the bottom of the sliding grooves 21, the movable grooves 41 are formed on two sides of the upper portion of the display 4 inside the scale body 1, a viewing hole 42 is formed in a gap between the two movable grooves 41, a user can conveniently read the numerical value on the display 4 by using the viewing hole 42, a magnetic roller 43 is movably arranged inside the movable groove 41, a shading film 431 is movably connected to the outer side of the magnetic roller 43, an electromagnetic block 44 is fixedly connected to the outer side of the movable groove 41 inside the scale body 1, the shading film 431 is rolled on the outer side of the magnetic roller 43, the top end of the shading film 431 is fixedly connected with the side wall of the movable groove 41 near the electromagnetic block 44, so that when the electromagnetic block 44 carries magnetism, the magnetic roller 43 can be driven to rotate by magnetic repulsive force and the shading film is opened and laid at the bottom of the movable groove 41, the numerical value of the display 4 can not be seen by people standing beside the electronic weighing scale from the side, the magnet 45 is fixedly connected to the top of the movable groove 41, which is positioned at one side of the sight hole 42, the positive electrode and the negative electrode of the display 4 are respectively fixedly connected with the lead 46, the lead 46 is fixedly wound on the outer side of the electromagnetic block 44, the other end of the lead 46 is electrically connected with the contact 22, the magnetism of the magnetic roller 43 is the same as that of the electromagnetic block 44, the magnetism of the magnetic roller 43 is the same as that of the magnet 45, the electromagnetic block 44 is not magnetized when the lead 46 on the outer side of the electromagnetic block 44 is not electrified, the magnetic force of the electromagnetic block 44 is three times that of the magnet 45 when the lead 46 is electrified and the electromagnetic block 44 is magnetized, the electromagnetic block 44 is ensured to be magnetized when the lead 46 is electrified, the magnetic roller 43 is driven to drive the shading film 431 to be opened, the bearing block 51 is fixedly connected to the corresponding position of the bottom side of the inner part of the shell 5 and the sensor 3, the top fixedly connected with pressure spring 52 of the bearing block 51, the outside with the sensor 3 is cup jointed in the activity of pressure spring 52, and the top of pressure spring 52 and the bottom of force transmission system 2 are located the outside fixed connection of sensor 3, ensure that accessible pressure spring 52's potential energy drives balance body 1 and force transmission system 2 and upwards move and make wire 46 outage when the electronic weighing scale is idle, the inside of shell 5 is located the positive negative pole department fixedly connected with conducting rod 61 of battery case 6, the position of conducting rod 61 corresponds with spout 21, and the top of conducting rod 61 stretches into the inside of spout 21, the well lower part of two conducting rods 61 is connected with the positive negative pole electricity of battery case 6 respectively, ensure that when standing on balance body 1 stands the people, drive force transmission system 2 and spout 21 through the weight and drive balance body 1 and make conducting rod 61 and contact with contact 22, make wire 46 switch on and then display 4 shows the numerical value.
Referring to fig. 1, 2, 3, 4 and 5, when a user stands on the scale body 1, the scale body 1 and the force transmission system 2 overcome the potential energy of the pressure spring 52 and slide down along the inner side wall of the housing 5 due to the action of the weight of the user, so that the sensor 3 is enabled to be in contact with the bearing block 51, meanwhile, the conductive rod 61 is connected with the contact 22 and electrified, so that the weight of the user is displayed on the display 4 after being converted by the force transmission system, meanwhile, the electromagnetic block 44 is enabled to be magnetized due to the electrifying of the lead 46, the magnetic rolling rod 43 is driven to roll in the movable groove 41 through the magnetic repulsive force, the shading film 431 is opened and paved at the bottom of the movable groove 41, only the angle of the user standing on the scale body 1 can see the numerical value of the display 4 through the visual hole 42, the privacy effect that the conductive rod 61 cannot be connected with the contact 22 is enabled to be achieved, the weight of the scale body 1 and the force transmission system is enabled to be moved up by the potential energy of the pressure spring 52 when the user falls down from the scale body 1, the privacy effect that the privacy is prevented from being reached, the privacy effect is prevented from being further, the user can not be prevented from being aware of the weight of the user due to the fact that the user is idle battery 6 is connected with the battery 6, and the privacy box is prevented from being further being turned on, and the user is prevented from being further being idle, and the user is prevented from being further has the user.
The application method (working principle) of the invention is as follows:
firstly, when a user needs to weigh his weight, the bottom of the shell 5 on the electronic weight scale is required to be placed on a flat ground, then the user stands on the scale body 1, the weight of the user drives the scale body 1 to slide down along the inner side wall of the shell 5, the bottom of the sensor 3 is enabled to be in contact with the top of the bearing block 51 for weighing, meanwhile, the conductive rod 61 is connected with the contact 22 at the top of the chute 21 along with the downward movement of the chute 21 and is electrified, so that the weight value of the user is converted into a value by the force transmission system and is displayed on the display 4, meanwhile, due to the connection between the conductive rod 61 and the contact 22, current passes in the wire 46, the electromagnetic block 44 is enabled to be magnetized, the magnetic roller 43 rolls in the movable groove 41 through magnetic repulsion force, so that the shading film 431 is opened and paved at the bottom of the movable groove 41, the value on the display 4 is shaded, only the user standing on the scale body 1 can see the value from the sight hole 42, the privacy of the user is protected, and finally, when the user moves down from the body 1, the conductive rod 61 is enabled to be connected with the contact 22 through the power transmission system, the battery 5 and the power transmission box 6 is prevented from corroding the power source box 6, and the rust of the electronic weight is prevented from being generated when the user is not connected with the power box 6 and the electronic weight scale body 1 and the electronic weight scale is connected with the contact box 6.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a weight scale of idle outage, includes balance body (1), force transfer system (2), sensor (3), display (4), shell (5) and battery case (6), its characterized in that: the utility model discloses a balance weight, including a power transmission system (2), a display (4), a balance body (1), a movable groove (41) and a sight hole (42) formed in the middle of the bottom of the power transmission system (2), a sliding groove (21) is formed in the two sides of the bottom of the power transmission system (2), a contact (22) is fixedly connected to the middle of the bottom of the sliding groove (21), a bearing block (51) is fixedly connected to the corresponding position of the bottom of the inside of the housing (5) and a sensor (3), a pressure spring (52) is fixedly connected to the top of the bearing block (51), a conductive rod (61) is fixedly connected to the positive electrode and the negative electrode of the battery box (6) in the inside of the housing (5), movable grooves (41) are formed in the two sides of the inside of the balance body (1) on the upper portion of the display (4), the inside activity of movable groove (41) has placed magnetism round bar (43), the outside swing joint of magnetism round bar (43) has lightproof membrane (431), the inside of balance body (1) is located the outside fixedly connected with electromagnetism piece (44) of movable groove (41), the inside of movable groove (41) is located the top fixedly connected with magnet (45) of one side of sight hole (42), the positive negative pole of display (4) is fixedly connected with wire (46) respectively, wire (46) is fixed winding in the outside of electromagnetism piece (44), and the other end of wire (46) is connected with contact (22) electricity, the position of each conductive rod (61) corresponds to that of the corresponding sliding groove (21), the tops of the conductive rods (61) extend into the sliding groove (21), the middle lower parts of the two conductive rods (61) are respectively electrically connected with the positive electrode and the negative electrode of the battery box (6), the magnetism of each magnetic rolling rod (43) is identical to that of each electromagnetic block (44), the magnetism of each magnetic rolling rod (43) is identical to that of each magnet (45), the electromagnetic blocks (44) are not magnetized when the conducting wires (46) on the outer sides of the electromagnetic blocks (44) are not electrified, and the magnetic force of the electromagnetic blocks (44) is three times that of the magnets (45) when the conducting wires (46) are electrified and the electromagnetic blocks (44) are magnetized.
2. The weight scale with idle outage according to claim 1, wherein: the pressure spring (52) is movably sleeved on the outer side of the sensor (3), and the top of the pressure spring (52) is fixedly connected with the bottom of the force transmission system (2) at the outer side of the sensor (3).
3. The weight scale with idle outage according to claim 1, wherein: the shell (5) is arranged in a rectangular bowl shape and wraps the outer sides of the balance body (1), the force transmission system (2) and the sensor (3), and an opening which is convenient for taking and placing the battery is formed in the position of the shell (5) which is located in the battery box (6).
4. The weight scale with idle outage according to claim 1, wherein: the shading film (431) is rolled on the outer side of the magnetic rolling rod (43), and the top end of the shading film (431) is fixedly connected with the side wall, close to the electromagnetic block (44), of the movable groove (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111231330.8A CN113804278B (en) | 2021-10-22 | 2021-10-22 | Idle outage weighing scale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111231330.8A CN113804278B (en) | 2021-10-22 | 2021-10-22 | Idle outage weighing scale |
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| Publication Number | Publication Date |
|---|---|
| CN113804278A CN113804278A (en) | 2021-12-17 |
| CN113804278B true CN113804278B (en) | 2024-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111231330.8A Active CN113804278B (en) | 2021-10-22 | 2021-10-22 | Idle outage weighing scale |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113804278B (en) |
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| CN106124009A (en) * | 2016-07-11 | 2016-11-16 | 佛山杰致信息科技有限公司 | A kind of electronic scale |
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| CN209298223U (en) * | 2019-03-09 | 2019-08-23 | 浙江科畅电子股份有限公司 | A kind of battery group electric discharge maintenance device |
| CN209342227U (en) * | 2019-01-24 | 2019-09-03 | 黄乐 | Charge scale |
| CN209910802U (en) * | 2019-05-10 | 2020-01-07 | 郦少君 | Light energy and USB charge combined weighing scale |
| CN209979045U (en) * | 2019-03-06 | 2020-01-21 | 可瑞尔科技(扬州)有限公司 | WiFi intelligence pad of weighing |
| CN210535163U (en) * | 2019-09-10 | 2020-05-15 | 苏州正夏电子科技有限公司 | Battery preparation test demonstration platform |
| CN210719378U (en) * | 2019-07-16 | 2020-06-09 | 刘娟娟 | Electronic scale capable of preventing overload |
| CN112880793A (en) * | 2021-01-23 | 2021-06-01 | 于国飞 | Antifouling and electricity-saving electronic weighing scale |
| CN113507811A (en) * | 2021-09-09 | 2021-10-15 | 南通海舟电子科技有限公司 | High protectiveness electronic equipment shell |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160231166A1 (en) * | 2015-02-10 | 2016-08-11 | Neeraj Malhotra | Weigh measuring scales for baggage |
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2021
- 2021-10-22 CN CN202111231330.8A patent/CN113804278B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202420641U (en) * | 2012-01-19 | 2012-09-05 | 陕西科技大学 | Intelligent weight balance |
| CN202631095U (en) * | 2012-04-27 | 2012-12-26 | 台衡精密测控(昆山)股份有限公司 | Low-power consumption electronic scale |
| CN106124009A (en) * | 2016-07-11 | 2016-11-16 | 佛山杰致信息科技有限公司 | A kind of electronic scale |
| CN107782434A (en) * | 2016-08-24 | 2018-03-09 | 余姚市高凯电子厂 | Electronic induction scale |
| CN209342227U (en) * | 2019-01-24 | 2019-09-03 | 黄乐 | Charge scale |
| CN209979045U (en) * | 2019-03-06 | 2020-01-21 | 可瑞尔科技(扬州)有限公司 | WiFi intelligence pad of weighing |
| CN209298223U (en) * | 2019-03-09 | 2019-08-23 | 浙江科畅电子股份有限公司 | A kind of battery group electric discharge maintenance device |
| CN209910802U (en) * | 2019-05-10 | 2020-01-07 | 郦少君 | Light energy and USB charge combined weighing scale |
| CN210719378U (en) * | 2019-07-16 | 2020-06-09 | 刘娟娟 | Electronic scale capable of preventing overload |
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| CN112880793A (en) * | 2021-01-23 | 2021-06-01 | 于国飞 | Antifouling and electricity-saving electronic weighing scale |
| CN113507811A (en) * | 2021-09-09 | 2021-10-15 | 南通海舟电子科技有限公司 | High protectiveness electronic equipment shell |
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| Publication number | Publication date |
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| CN113804278A (en) | 2021-12-17 |
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Effective date of registration: 20240311 Address after: 518000 Qiancheng Commercial Center 1605, No. 5 Haicheng Road, Mabu Community, Xixiang Street, Bao'an District, Shenzhen, Guangdong Province Applicant after: Xingfeng Technology (Shenzhen) Co.,Ltd. Country or region after: China Address before: 710000 No. 108, unit 3, building 6, No. 12, east section of electronic second road, Yanta District, Xi'an City, Shaanxi Province Applicant before: Guo Yin Country or region before: China |
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