CN114241738A - Infrared distance measurement posture corrector - Google Patents
Infrared distance measurement posture corrector Download PDFInfo
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- CN114241738A CN114241738A CN202111488596.0A CN202111488596A CN114241738A CN 114241738 A CN114241738 A CN 114241738A CN 202111488596 A CN202111488596 A CN 202111488596A CN 114241738 A CN114241738 A CN 114241738A
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- 238000005259 measurement Methods 0.000 title claims abstract description 13
- 210000003205 muscle Anatomy 0.000 claims description 8
- 238000012545 processing Methods 0.000 claims description 6
- 230000033228 biological regulation Effects 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 5
- 230000006698 induction Effects 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 4
- 230000036544 posture Effects 0.000 description 42
- 238000010586 diagram Methods 0.000 description 9
- 230000004888 barrier function Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/06—Systems determining position data of a target
- G01S17/08—Systems determining position data of a target for measuring distance only
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Computer Networks & Wireless Communication (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
The invention discloses an infrared distance measurement posture corrector which comprises a posture corrector main body, wherein the posture corrector main body mainly comprises an LCD screen, an infrared sensing screen, a sensing module, an MCU, a key, a loudspeaker, a sound raising port, a charging port and an adjustable clamping cavity, the LCD screen, the infrared sensing screen, the key, the sound raising port, a Bluetooth antenna, the charging port, a power supply module and the adjustable clamping cavity are all arranged outside the posture corrector main body, and the sensing module, the MCU, the Bluetooth antenna, the loudspeaker and the power supply module are all arranged inside the posture corrector main body. The posture corrector is mainly used for reminding and correcting the sitting posture of the child, compared with the existing posture corrector, the posture corrector monitors by using an infrared sensing technology, does not contact with the limb of the child, and cannot influence the learning of the child; the desk can be installed on desks with different thicknesses, and is simple in installation and operation, convenient to disassemble and high in application flexibility; the induction distance can be set through the keys, the induction distance range is between 10 and 25CM, and the range of applicable age (height) is wide.
Description
Technical Field
The invention relates to the field of education equipment, in particular to an infrared distance measuring posture corrector.
Background
At present, children have large learning pressure and long learning time, so that a plurality of bad learning habits are caused, the problems of short sight and the like are easily caused, in order to avoid the children from developing wrong sitting posture habits, a posture corrector is usually adopted to correct sitting postures, the existing posture corrector usually realizes early warning by physical contact, the height is adjusted by a structure, the induction distance is short and fixed, and the height must be changed by the structure; in addition, the children need to wear the glasses on the body, which easily affects the learning of the children.
Disclosure of Invention
The invention provides an infrared distance measurement posture corrector, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
an infrared distance measurement posture corrector comprises a posture corrector main body, wherein the posture corrector main body mainly comprises an LCD screen, an infrared sensing screen, a sensing module, an MCU, a key, a loudspeaker, a sound raising port, a Bluetooth antenna, a charging port, a power supply module and an adjustable clamping cavity;
the LCD screen, the infrared sensing screen, the keys, the sound raising ports, the charging ports and the adjustable clamping cavities are all arranged outside the posture corrector main body, the LCD screen and the infrared sensing screen are all arranged in the middle of the upper surface of the posture corrector main body, four keys are arranged on two sides of the LCD screen, the four keys are symmetrically arranged on two sides of the LCD screen respectively, the two sound raising ports are symmetrically arranged on two sides of the keys respectively, the charging ports are arranged on the side surfaces of the posture corrector main body, and the adjustable clamping cavities are arranged on the rear side of the posture corrector main body;
sensing module, MCU, bluetooth antenna, loudspeaker and power module all set up in the inside of correcting appearance ware main part, sensing module corresponds and sets up in the below of infrared sensing screen, loudspeaker correspond and set up in the below of mouth of raising the voice, power module corresponds and sets up in the inside of the mouth that charges.
By adopting the scheme, the posture corrector main body is mainly used for reminding and correcting the sitting posture of the child, and compared with the existing posture corrector, the posture corrector is monitored by using an infrared sensing technology, does not contact with the limb of the child and cannot influence the learning of the child; the desk can be installed on desks with different thicknesses, and is simple in installation and operation, convenient to disassemble and high in application flexibility; wherein, the LCD screen is used for showing instruction operation and data, infrared sensing screen is used for sensing module's protection, sensing module monitors children's chin through infrared ray sensing, MCU is used for each instruction signal's processing, the button is used for sending of each instruction, loudspeaker are used for making a sound, the mouth of raising one's voice is used for the diffusion of sound, bluetooth antenna is used for rectifying appearance ware main part and cell-phone wireless interconnection, the mouth that charges is used for power module's charging, power module is used for rectifying the power supply of appearance ware main part, adjustable centre gripping chamber is used for supplementary the centre gripping of rectifying appearance ware main part fixedly.
Preferably, the below in adjustable centre gripping chamber is fixed with the benchmark board that the level set up, the below of benchmark board is fixed with the benchmark seat of perpendicular setting, the below outside swing joint of benchmark seat has the regulation seat, there is the accommodate the lead screw of perpendicular setting in the inside of adjusting the seat through screw thread swing joint, the top of accommodate the lead screw is fixed with the grip block that the level set up, the rear side of grip block is fixed with the guide muscle, the guide muscle is spacing in the guide groove of seting up in adjustable centre gripping intracavity portion and perpendicular setting.
Through adopting above-mentioned scheme, the benchmark board is as the benchmark of benchmark seat, and the benchmark seat is as the rotatory benchmark of adjusting the seat, adjusts the seat and is used for adjusting accommodate the lead screw's position, and accommodate the lead screw is used for driving the position of adjustment grip block, and the grip block is used for assisting to be fixed in the desk with posture correcting device main part, and the guide muscle is used for assisting the guide of grip block, and the guide groove is used for the spacing of guide muscle.
Preferably, a ring-shaped groove is formed in the outer side below the reference seat, and a ring-shaped sliding rail is fixed on the inner side above the adjusting seat; wherein, the annular slide rail is limited in the annular groove.
Through adopting above-mentioned scheme, because the annular slide rail is spacing in the annular recess, adjust the seat and all the time the movable assembly on the reference base, the seat is adjusted in the rotation so, under the effect of screw thread, drives accommodate the lead screw and goes up and down to change the position of grip block, but through the desk of different thickness of grip block centre gripping, its easy operation, and have nimble application flexibility.
Preferably, the upper surface of grip block covers there is the first slipmat of one deck, the upper surface in adjustable centre gripping chamber covers there is the second slipmat of one deck.
Through adopting above-mentioned scheme, the edge of desk mainly relies on the upper surface centre gripping of grip block and adjustable centre gripping chamber fixed, so under the effect of first slipmat and second slipmat, frictional force when can increase its and desk surface contact to guarantee its centre gripping back stability and reliability.
Preferably, the posture corrector main body uses the MCU as signal processing, and the LCD screen, the infrared sensing screen, the sensing module, the Bluetooth antenna, the keys, the loudspeaker and the power supply module are all electrically connected with the MCU.
Through adopting above-mentioned scheme, start posture correcting device main part, set up sensing module's detection distance in advance through the button, treat that the position sets for the back that finishes, sensing module sees through the infrared light of certain intensity of infrared sensing screen transmission, infrared light reflection after being sheltered from by the barrier, the received light intensity changes along with the distance of reflection object, and calculate the distance of barrier to product through logic algorithm, children chin in case low excessively, be less than its set value after, MCU can control loudspeaker power amplifier, thereby warn children and adjust the position of sitting.
Compared with the prior art, the invention has the beneficial effects that:
the invention relates to an infrared distance measurement posture corrector which is mainly used for reminding and correcting the sitting posture of a child, and compared with the existing posture corrector, the infrared distance measurement posture corrector is monitored by using an infrared sensing technology, does not contact with the limb of the child and cannot influence the learning of the child; the desk can be installed on desks with different thicknesses, and is simple in installation and operation, convenient to disassemble and high in application flexibility; the induction distance can be set through the keys, the induction distance range is between 10 and 25CM, and the range of applicable age (height) is wide.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is an enlarged view of a portion of FIG. 1 at B;
FIG. 4 is a schematic top view of the present invention;
FIG. 5 is a schematic left side view of the present invention;
FIG. 6 is a flow chart of the principle of operation of the present invention;
FIG. 7 is a control circuit diagram of the MCU of the present invention;
FIG. 8 is a control circuit diagram of an LCD screen according to the present invention;
FIG. 9 is a circuit diagram of the control of the speaker of the present invention;
FIG. 10 is a circuit diagram of the control circuit of the horn power amplifier of the present invention;
FIG. 11 is a circuit diagram of a key control circuit according to the present invention;
FIG. 12 is a circuit diagram of a Bluetooth antenna according to the present invention;
FIG. 13 is a control circuit diagram of the power supply module of the present invention;
FIG. 14 is a diagram of an infrared transmitting and receiving circuit according to the present invention;
fig. 15 is a control circuit diagram of the sensing module feeding back the MCU for data processing in the present invention.
In the figure:
1-posture corrector main body; 11-an LCD screen; 12-an infrared sensing screen; 13-key press; 14-a sound-emitting port; 15-a charging port; 16-an adjustable clamping cavity; 161-a reference plate; 162-a reference seat; 1621-a ring-shaped groove; 163-an adjustment seat; 1631-a ring-shaped sliding rail; 164-adjusting screw; 165-a clamping plate; 166-a guide rib; 167-a guide groove; 168-a first cleat; 169-second non-slip mat.
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.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
Referring to fig. 1-15, the present invention provides a technical solution:
an infrared distance measurement posture corrector comprises a posture corrector main body 1, wherein the posture corrector main body 1 mainly comprises an LCD screen 11, an infrared sensing screen 12, a sensing module, an MCU, a key 13, a loudspeaker, a loudspeaking port 14, a Bluetooth antenna, a charging port 15, a power supply module and an adjustable clamping cavity 16;
the LCD screen 11, the infrared sensing screen 12, the keys 13, the sound raising port 14, the charging port 15 and the adjustable clamping cavity 16 are all arranged outside the posture corrector main body 1, the LCD screen 11 and the infrared sensing screen 12 are all arranged in the middle of the upper surface of the posture corrector main body 1, four keys 13 are arranged on two sides of the LCD screen 11, the four keys 13 are symmetrically arranged on two sides of the LCD screen 11 respectively, the Bluetooth antenna is used for pressing the keys for wirelessly interconnecting the posture corrector main body 1 and a mobile phone, the sound raising port 14 is arranged in two positions, the two sound raising ports 14 are symmetrically arranged on two sides of the keys 13 respectively, the charging port 15 is arranged on the side surface of the posture corrector main body 1, and the adjustable clamping cavity 16 is arranged on the rear side of the posture corrector main body 1;
sensing module, MCU, bluetooth antenna, loudspeaker and power module all set up in the inside of correcting appearance ware main part 1, sensing module corresponds and sets up in the below of infrared sensing screen 12, loudspeaker correspond and set up in the below of mouth of raising the voice 14, power module corresponds and sets up in the inside of charging mouth 15.
By adopting the scheme, the posture corrector main body 1 is mainly used for reminding and correcting the sitting posture of the child, compared with the existing posture corrector, the posture corrector is monitored by using an infrared sensing technology, does not contact with the limb of the child and cannot influence the learning of the child; the desk can be installed on desks with different thicknesses, and is simple in installation and operation, convenient to disassemble and high in application flexibility; wherein, LCD screen 11 is used for showing instruction operation and data, infrared sensing screen 12 is used for sensing module's protection, sensing module monitors children's chin through infrared ray sensing, MCU is used for each instruction signal's processing, button 13 is used for the sending of each instruction, loudspeaker are used for making a sound, mouth 14 of raising the voice is used for the diffusion of sound, mouth 15 that charges is used for power module's charging, power module is used for rectifying the power supply of appearance ware main part 1, adjustable centre gripping chamber 16 is used for assisting the centre gripping of rectifying appearance ware main part 1 fixedly.
The below of adjustable centre gripping chamber 16 is fixed with the benchmark board 161 that the level set up, the below of benchmark board 161 is fixed with the benchmark seat 162 of perpendicular setting, the below outside activity of benchmark seat 162 is equipped with adjusts the seat 163, there is the perpendicular accommodate the lead screw 164 that sets up in the inside of adjusting the seat 163 through screw thread swing joint, the top of accommodate the lead screw 164 is fixed with the grip block 165 that the level set up, the rear side of grip block 165 is fixed with the guide muscle 166, the guide muscle 166 is spacing in the guide groove 167 of seting up in adjustable centre gripping chamber 16 inside and perpendicular setting.
By adopting the above scheme, the reference plate 161 is used as the reference of the reference seat 162, the reference seat 162 is used as the rotation reference of the adjusting seat 163, the adjusting seat 163 is used for adjusting the position of the adjusting screw rod 164, the adjusting screw rod 164 is used for driving and adjusting the position of the clamping plate 165, the clamping plate 165 is used for assisting in fixing the posture corrector main body 1 on a desk, the guiding ribs 166 are used for assisting in guiding the clamping plate 165, and the guiding grooves 167 are used for limiting the guiding ribs 166.
A ring-shaped groove 1621 is formed in the outer side of the lower portion of the reference seat 162, and a ring-shaped slide rail 1631 is fixed on the inner side of the upper portion of the adjusting seat 163; wherein, the ring-shaped slide rail 1631 is limited in the ring-shaped groove 1621.
Through adopting above-mentioned scheme, because annular slide rail 1631 is spacing in annular recess 1621, adjust seat 163 activity assembly all the time on benchmark seat 162, so rotation regulation seat 163 drives accommodate the lead screw 164 and goes up and down under the effect of screw thread to change the position of grip block 165, can centre gripping the desk of different thickness through grip block 165, its easy operation, and have nimble application flexibility.
The upper surface of the clamping plate 165 is covered with a first non-slip mat 168, and the upper surface of the adjustable clamping chamber 16 is covered with a second non-slip mat 169.
By adopting the scheme, the edge of the desk is clamped and fixed by the clamping plate 165 and the upper surface of the adjustable clamping cavity 16, so that the friction force between the edge of the desk and the surface of the desk can be increased under the action of the first anti-skid pad 168 and the second anti-skid pad 169, and the stability and the reliability of the clamped edge of the desk can be ensured.
In the posture corrector main body 1 which takes the MCU as signal processing, the LCD screen 11, the infrared sensing screen 12, the sensing module, the keys 13, the loudspeaker and the power supply module are all electrically connected with the MCU.
Through adopting above-mentioned scheme, set up sensing module's detection distance in advance through button 13, treat that the position sets for the back that finishes, start posture correction ware main part 1, sensing module sees through the infrared light of infrared sensing screen 12 transmission certain intensity, infrared light reflection after being sheltered from by the barrier, the received light intensity changes along with the distance of reflection object, and calculate the distance of barrier to product through logical algorithm, children chin in case low excessively, be less than its set value after, MCU can control loudspeaker power amplifier, thereby warn children and adjust the position of sitting.
The working principle of the invention is as follows:
the adjustable clamping cavity 16 of the posture corrector main body 1 is butted on the edge of a desk, the annular slide rail 1631 is limited in the annular groove 1621, the adjusting seat 163 is always movably assembled on the reference seat 162, and then the adjusting seat 163 is rotated to drive the adjusting screw 164 to lift under the action of the thread, so that the position of the clamping plate 165 is changed, and the adjustable clamping cavity can be clamped and fixed on the desk through the clamping plate 165; set up sensing module's detection distance in advance through button 13, realize adjustment orthopedic ware data (pronunciation package, the warning distance, whether remind repeatedly) through APP, propelling movement upgrading procedure, update data, the record is the live time at every turn, the accumulative total live time, the warning number of times, the APP end sets up the distance that the response was reminded, treat the position setting back that finishes, start posture correcting ware main part 1, sensing module sees through the infrared light of infrared sensing screen 12 transmission certain intensity, infrared light reflection after sheltering from by the barrier, the received light intensity changes along with the distance of reflection object, and calculate the distance of barrier to product through logic algorithm, thereby realize contactless monitoring and correct children's position of sitting, once the chin is low excessively, be less than behind its setting value, MCU can control loudspeaker power amplifier, thereby warn children adjustment position of sitting.
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 (5)
1. An infrared distance measurement posture corrector is characterized by comprising a posture corrector main body (1), wherein the posture corrector main body (1) mainly comprises an LCD screen (11), an infrared sensing screen (12), a sensing module, an MCU, a key (13), a loudspeaker, a sound raising port (14), a Bluetooth antenna, a charging port (15), a power supply module and an adjustable clamping cavity (16);
the LCD screen (11), the infrared sensing screen (12), the keys (13), the loudspeaking ports (14), the charging ports (15) and the adjustable clamping cavities (16) are all arranged outside the posture corrector main body (1), the LCD screen (11) and the infrared sensing screen (12) are all arranged in the middle of the upper surface of the posture corrector main body (1), four keys (13) are arranged on two sides of the LCD screen (11), the four keys (13) are respectively and symmetrically arranged on two sides of the LCD screen (11), two sound raising ports (14) are arranged on two sides of the keys (13), the charging ports (15) are arranged on the side surface of the posture corrector main body (1), and the adjustable clamping cavities (16) are arranged on the rear side of the posture corrector main body (1);
sensing module, MCU, bluetooth antenna, loudspeaker and power module all set up in the inside of correcting appearance ware main part (1), sensing module corresponds the below that sets up in infrared sensing screen (12), loudspeaker correspond the below that sets up in sound raising mouth (14), power module corresponds the inside that sets up in charging mouth (15).
2. An infrared distance measurement posture corrector as claimed in claim 1, characterized in that: the below of adjustable centre gripping chamber (16) is fixed with benchmark board (161) that the level set up, the below of benchmark board (161) is fixed with benchmark base (162) of perpendicular setting, the below outside movable mounting of benchmark base (162) has regulation seat (163), the inside of adjusting seat (163) has accommodate the lead screw (164) of perpendicular setting through screw thread swing joint, the top of accommodate the lead screw (164) is fixed with grip block (165) that the level set up, the rear side of grip block (165) is fixed with guide muscle (166), guide muscle (166) are spacing in locating inside and perpendicular guide groove (167) that sets up of adjustable centre gripping chamber (16).
3. An infrared distance measurement posture corrector as claimed in claim 2, characterized in that: a ring-shaped groove (1621) is formed in the outer side of the lower portion of the reference seat (162), and a ring-shaped sliding rail (1631) is fixed on the inner side of the upper portion of the adjusting seat (163); wherein, the ring-shaped sliding rail (1631) is limited in the ring-shaped groove (1621).
4. An infrared distance measurement posture corrector as claimed in claim 2, characterized in that: the upper surface of the clamping plate (165) is covered with a layer of first anti-skid pad (168), and the upper surface of the adjustable clamping cavity (16) is covered with a layer of second anti-skid pad (169).
5. An infrared distance measurement posture corrector as claimed in claim 1, characterized in that: in the posture correcting device main body (1) using the MCU as signal processing, the LCD screen (11), the infrared sensing screen (12), the sensing module, the keys (13), the Bluetooth antenna, the loudspeaker and the power supply module are all electrically connected with the MCU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111488596.0A CN114241738A (en) | 2021-12-08 | 2021-12-08 | Infrared distance measurement posture corrector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111488596.0A CN114241738A (en) | 2021-12-08 | 2021-12-08 | Infrared distance measurement posture corrector |
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| CN114241738A true CN114241738A (en) | 2022-03-25 |
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| CN202111488596.0A Pending CN114241738A (en) | 2021-12-08 | 2021-12-08 | Infrared distance measurement posture corrector |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2854723Y (en) * | 2005-12-29 | 2007-01-03 | 许永林 | Voice prompting corrector for read, write sit posture |
| CN204632070U (en) * | 2015-03-31 | 2015-09-09 | 刘�东 | A kind of sight protector |
| CN207352758U (en) * | 2017-09-29 | 2018-05-11 | 白城师范学院 | A kind of myopia prevention reads rectifier |
| CN208192626U (en) * | 2018-03-05 | 2018-12-07 | 陈永杰 | The correct sitting posture auxiliary tool of children |
| CN211087496U (en) * | 2020-01-18 | 2020-07-24 | 优象文化(广州)有限公司 | Novel sitting posture corrector |
| CN212437793U (en) * | 2020-05-08 | 2021-02-02 | 栗涛 | Sitting posture corrector |
| CN212521168U (en) * | 2020-05-07 | 2021-02-12 | 常州纺织服装职业技术学院 | Touching warning position of sitting unscrambler |
| CN213840398U (en) * | 2020-11-11 | 2021-07-30 | 洪伟伟 | Sitting posture corrector |
-
2021
- 2021-12-08 CN CN202111488596.0A patent/CN114241738A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2854723Y (en) * | 2005-12-29 | 2007-01-03 | 许永林 | Voice prompting corrector for read, write sit posture |
| CN204632070U (en) * | 2015-03-31 | 2015-09-09 | 刘�东 | A kind of sight protector |
| CN207352758U (en) * | 2017-09-29 | 2018-05-11 | 白城师范学院 | A kind of myopia prevention reads rectifier |
| CN208192626U (en) * | 2018-03-05 | 2018-12-07 | 陈永杰 | The correct sitting posture auxiliary tool of children |
| CN211087496U (en) * | 2020-01-18 | 2020-07-24 | 优象文化(广州)有限公司 | Novel sitting posture corrector |
| CN212521168U (en) * | 2020-05-07 | 2021-02-12 | 常州纺织服装职业技术学院 | Touching warning position of sitting unscrambler |
| CN212437793U (en) * | 2020-05-08 | 2021-02-02 | 栗涛 | Sitting posture corrector |
| CN213840398U (en) * | 2020-11-11 | 2021-07-30 | 洪伟伟 | Sitting posture corrector |
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