CN114680466A - Intelligent music learning and training device - Google Patents

Intelligent music learning and training device Download PDF

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Publication number
CN114680466A
CN114680466A CN202210264426.2A CN202210264426A CN114680466A CN 114680466 A CN114680466 A CN 114680466A CN 202210264426 A CN202210264426 A CN 202210264426A CN 114680466 A CN114680466 A CN 114680466A
Authority
CN
China
Prior art keywords
fixed
plate
rod
disc
training device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210264426.2A
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Chinese (zh)
Inventor
欧阳婷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
XI'AN INSTITUTE OF PHYSICAL EDUCATION
Original Assignee
XI'AN INSTITUTE OF PHYSICAL EDUCATION
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Filing date
Publication date
Application filed by XI'AN INSTITUTE OF PHYSICAL EDUCATION filed Critical XI'AN INSTITUTE OF PHYSICAL EDUCATION
Priority to CN202210264426.2A priority Critical patent/CN114680466A/en
Publication of CN114680466A publication Critical patent/CN114680466A/en
Pending legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47BTABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B37/00Tables adapted for other particular purposes
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47BTABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B13/00Details of tables or desks
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47BTABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B13/00Details of tables or desks
    • A47B13/08Table tops; Rims therefor
    • A47B13/081Movable, extending, sliding table tops
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47BTABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B39/00School forms; Benches or forms combined with desks
    • A47B39/02Adjustable forms
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47BTABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B39/00School forms; Benches or forms combined with desks
    • A47B39/10Devices for holding pupils upright, i.e. body supports
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47BTABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B41/00School desks or tables
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47BTABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B83/00Combinations comprising two or more pieces of furniture of different kinds
    • A47B83/02Tables combined with seats
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09BEDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B15/00Teaching music

Abstract

The invention discloses intelligent music learning and training equipment, and relates to the technical field of music training equipment. Including the table and set up the trainer at the table top, the fixed equipment and the auxiliary assembly of the bottom of table, the auxiliary assembly includes the fixed plate, the bottom at the table is fixed to the fixed plate, the through-hole has been seted up to the bottom of fixed plate, the through-hole of fixed plate bottom is run through by the bedplate and with bedplate sliding connection, the top of bedplate is fixed with the back, the back run through the bottom of lagging and with lagging sliding connection. Subassembly and adjusting part are lifted in the auxiliary assembly cooperation through setting up, and the user sits back on the bedplate when using, can adjust bedplate and lagging to can adjust the layer board, correct with the position of sitting when realizing practising the music to the user, avoided the user to practise the position of sitting and standardize, lead to some symptoms of lumbar vertebrae bending and hunchback easily for a long time.

Description

Intelligent music learning and training device
Technical Field
The invention relates to the technical field of music training equipment, in particular to intelligent music learning and training equipment.
Background
Music provides a wide, free imagination space for everyone. Learning a musical instrument can not only cultivate the music literacy of children, but also train the brains of children. The piano is a keyboard instrument in Western classical music, has the beauty of the king of the instrument, has soft and flexible characteristics, can improve the aesthetic quality and quality of people after long-term practice, and is deeply loved by the masses. The drum set looks like a row of drums hung on a rack from the appearance, drummers play the drum set very spiritedly and obviously, and the drum set also belongs to a hot music instrument and is particularly popular with teenagers and friends.
The music learning not only cultivates the interest and hobbies of children, has also promoted the holistic quality of children, but when the student practises the music for a long time, the body just takes place to bow unconsciously, and the exercise position of sitting is not standard, leads to some symptoms of lumbar vertebra bending and hunchback easily for a long time, has not only influenced the quality of qi and has caused certain influence to children's health development. In view of this, we propose an intelligent music learning and training device.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides intelligent music learning and training equipment, which solves the problems in the background technology.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides an intelligence music study and training equipment, includes the table and sets up the trainer at the table top, the fixed equipment and the auxiliary assembly of the bottom of table, the auxiliary assembly includes the fixed plate, the bottom at the table is fixed to the fixed plate, the through-hole has been seted up to the bottom of fixed plate, the through-hole of fixed plate bottom is run through by the bedplate and with bedplate sliding connection.
Preferably, a backrest is fixed to the top of the seat plate, the backrest penetrates through the bottom of the sleeve plate and is in sliding connection with the sleeve plate, and a fastening bolt A penetrates through the right side of the sleeve plate and is in threaded connection with the fastening bolt A.
Preferably, the fixed equipment comprises a rectangular block, a groove is formed in the left side of the rectangular block, a sliding plate is slidably mounted in the groove in the left side of the rectangular block, the bottom of the sliding plate is rotatably connected with one end of a threaded rod, the threaded rod penetrates through the rectangular block and is in threaded connection with the rectangular block, the other end of the threaded rod is fixed with a knob, and a rubber pad is fixed in the groove in the left side of the rectangular block.
Preferably, the top of table is fixed with lifts the subassembly, it includes the fixed column to lift the subassembly, the fixed column is fixed at the top of table, the fixed column run through the bottom of layer board and with layer board sliding connection, the left side of layer board is run through and with fastening bolt B threaded connection by fastening bolt B.
Preferably, the fixed plate is internally provided with an adjusting assembly, the adjusting assembly comprises a disc, the disc is rotatably mounted on the surface of the fixed plate, the disc is fixed to a worm, the worm penetrates through the fixed plate and is rotatably connected with the fixed plate, the worm is meshed with a worm wheel, the worm wheel is penetrated through by a rotating rod and is rotatably connected with the rotating rod, and the rotating rod is rotatably mounted on the inner wall of the fixed plate.
Preferably, the rotating rod penetrates through the bottom of the fixing plate and is connected with the fixing plate in a rotating mode, the bottom of the rotating rod is fixed with the gear, the gear is installed on the inner side of the through hole in the bottom of the fixing plate in a rotating mode, and the rack is fixed to the top of the seat plate.
Preferably, an annular sliding groove is formed in the disc, and a latch is arranged on the inner side of the annular sliding groove in the disc.
Preferably, the inside of disc annular spout is provided with control assembly, control assembly includes the slide bar, slide bar slidable mounting is in the inside of disc annular spout, the slide bar run through the control lever and with control lever sliding connection, the slide bar is fixed with the one end of spring, the other end of spring is fixed on the inner wall of control lever.
Preferably, one side of the control rod, which is close to the slide rod, is hinged to one end of the supporting rod, the other end of the supporting rod is hinged to one end of the clamping block, the other end of the clamping block is hinged to one end of the connecting rod, and the other end of the connecting rod is hinged to the slide rod.
(III) advantageous effects
The invention provides intelligent music learning and training equipment. The method has the following beneficial effects:
(1) this intelligence music study and training equipment lifts subassembly and adjusting part through the auxiliary assembly cooperation that sets up, and the user sits back on the bedplate when using, can adjust bedplate and lagging to can adjust the layer board, correct with the position of sitting when realizing practising the music to the user, avoided the user to practise the position of sitting and standardize, lead to some symptoms of lumbar vertebrae bending and hunchback in a long time easily.
(2) This intelligence music study and training equipment, through the fixed equipment of setting value, before using, can be through rotating the knob, the control sliding plate removes to the realization is with device monolithic stationary at table edge or bed along, and it is more convenient to use.
(3) This intelligence music study and training equipment through the control assembly who sets up, just can rotate the disc when the push control pole, has avoided the user when practising the music, and control is touched to careless mistake, leads to the control pole to drive the disc rotatory, and then adjusts the bedplate.
Drawings
FIG. 1 is a schematic cross-sectional front view of the present invention;
FIG. 2 is a schematic top view of the seat plate of the present invention;
FIG. 3 is a schematic view of a fixing plate according to the present invention;
FIG. 4 is a schematic cross-sectional side view of the puck and control assembly of the present invention;
FIG. 5 is an enlarged view of A in FIG. 4 according to the present invention;
FIG. 6 is a schematic view of the structure of the latch in the arc chute of the disc of the present invention.
In the figure: 1. a table plate; 2. a training device; 3. a fixed device; 31. a rectangular block; 32. a sliding plate; 33. a threaded rod; 34. a knob; 35. a rubber pad; 4. an auxiliary component; 41. a fixing plate; 42. a seat plate; 43. a backrest; 44. sheathing; 45. fastening the bolt A; 5. a lifting assembly; 51. fixing a column; 52. a support plate; 53. fastening a bolt B; 6. an adjustment assembly; 61. a disc; 62. a worm; 63. a worm gear; 64. a rotating rod; 65. a gear; 66. a rack; 7. a control component; 71. a slide bar; 72. a control lever; 73. a strut; 74. a clamping block; 75. a connecting rod.
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. 1-6, the present invention provides a technical solution: the utility model provides an intelligence music study and training equipment, including table 1 and the trainer 2 of setting at table 1 top, fixed equipment 3 and the auxiliary assembly 4 of table 1's bottom, auxiliary assembly 4 includes fixed plate 41, fixed plate 41 is fixed in the bottom of table 1, the through-hole has been seted up to the bottom of fixed plate 41, the through-hole of fixed plate 41 bottom is run through by bedplate 42 and with bedplate 42 sliding connection, bedplate 42's top is fixed with back 43, back 43 runs through the bottom of lagging 44 and with lagging 44 sliding connection, the right side of lagging 44 is fastened bolt A45 and is run through and with fastening bolt A45 threaded connection, through unscrewing fastening bolt A45, can adjust the height of lagging 44, after adjusting, it can to tighten fastening bolt A45 once more, can be fine use the user of different stature heights.
In this embodiment, fixed equipment 3 includes rectangular block 31, the left side of rectangular block 31 is seted up flutedly, the inboard slidable mounting of rectangular block 31 left side recess has sliding plate 32, sliding plate 32's bottom is rotated with the one end of threaded rod 33 and is connected, threaded rod 33 run through rectangular block 31 and with rectangular block 31 threaded connection, the other end and the knob 34 of threaded rod 33 are fixed, the inboard of rectangular block 31 left side recess is fixed with rubber pad 35, it rotates knob 34 and drives threaded rod 33 and rotate, sliding plate 32 can cooperate rubber pad 35 to press from both sides tightly fixedly along table or bed, more convenient to use person uses.
In this embodiment, the top of table 1 is fixed with lifts subassembly 5, lifts subassembly 5 including fixed column 51, and fixed column 51 is fixed at the top of table 1, and fixed column 51 runs through the bottom of layer board 52 and with layer board 52 sliding connection, the left side of layer board 52 fastened bolt B53 run through and with fastening bolt B53 threaded connection, through adjusting layer board 52, can lift user's chin to the realization is adjusted user's position of sitting.
In this embodiment, the adjusting assembly 6 is disposed inside the fixing plate 41, the adjusting assembly 6 includes a disk 61, the disk 61 is rotatably mounted on the surface of the fixing plate 41, the disk 61 is fixed to the worm 62, the worm 62 penetrates through the fixing plate 41 and is rotatably connected to the fixing plate 41, the worm 62 is engaged with the worm wheel 63, the worm wheel 63 is penetrated through by the rotating rod 64 and is rotatably connected to the rotating rod 64, the rotating rod 64 is rotatably mounted on the inner wall of the fixing plate 41, the rotating rod 64 penetrates through the bottom of the fixing plate 41 and is rotatably connected to the fixing plate 41, the bottom of the rotating rod 64 is fixed to the gear 65, the gear 65 is rotatably mounted inside the through hole at the bottom of the fixing plate 41, and the top of the seat plate 42 is fixed to the rack 66. The disc 61 is provided with an annular sliding groove, the inner side of the annular sliding groove on the disc 61 is provided with a latch, and when the latch 74 is latched into the latch in the annular sliding groove on the disc 61, the control rod 72 is shaken to drive the slide rod 71 to move, and the slide rod 71 can drive the disc 61 to rotate together.
In this embodiment, the control assembly 7 is disposed inside the annular sliding slot of the disc 61, the control assembly 7 includes a sliding rod 71, the sliding rod 71 is slidably mounted inside the annular sliding slot of the disc 61, the sliding rod 71 penetrates through the control rod 72 and is slidably connected with the control rod 72, the sliding rod 71 is fixed with one end of a spring, the other end of the spring is fixed on the inner wall of the control rod 72, one side of the control rod 72 close to the sliding rod 71 is hinged to one end of a supporting rod 73, the other end of the supporting rod 73 is hinged to one end of a fixture block 74, the other end of the fixture block 74 is hinged to one end of a connecting rod 75, and the other end of the connecting rod 75 is hinged to the sliding rod 71.
When the table is in use (or in use), the rotary knob 34 drives the threaded rod 33 to rotate, the threaded rod 33 drives the sliding plate 32 to move upwards, and the sliding plate 32 is matched with the rubber pad 35 to clamp and fix the table edge or the bed edge, so that the table is more convenient for a user to use. The height of the sleeve plate 44 can be adjusted by loosening the fastening bolt A45, and after the adjustment is finished, the fastening bolt A45 is tightened again, so that users with different statures and heights can be well used.
After the adjustment is completed, the user sits on the seat plate 42, pushes the control rod 72, the control rod 72 pushes the latch 74 to be latched into the latch in the annular sliding slot on the disc 61 through the support rod 73 and the connecting rod 75, and swings the control rod 72, and the control rod 72 drives the disc 61 to rotate together through the sliding rod 71. The disc 61 drives the worm 62 to rotate, the worm 62 drives the worm wheel 63 to rotate, the worm wheel 63 drives the gear 65 to rotate through the rotating rod 64, and the gear 65 drives the seat plate 42 to be adjusted left and right through the rack 66 so as to adapt to users with different statures.
Finally, the height of the supporting plate 52 is adjusted by screwing the fastening bolt B53, so that the chin of the user can be lifted, and the sitting posture of the user can be adjusted.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. The utility model provides an intelligence music study and training equipment, includes table (1) and sets up trainer (2) at table (1) top, its characterized in that: fixed equipment (3) and auxiliary assembly (4) of the bottom of table (1), auxiliary assembly (4) are including fixed plate (41), fixed plate (41) are fixed in the bottom of table (1), the through-hole has been seted up to the bottom of fixed plate (41), the through-hole of fixed plate (41) bottom is run through by bedplate (42) and with bedplate (42) sliding connection.
2. The intelligent music learning and training device of claim 1, wherein: the top of the seat plate (42) is fixed with a backrest (43), the backrest (43) penetrates through the bottom of the sleeve plate (44) and is in sliding connection with the sleeve plate (44), and a fastening bolt A (45) penetrates through the right side of the sleeve plate (44) and is in threaded connection with the fastening bolt A (45).
3. The intelligent music learning and training device of claim 1, wherein: fixed equipment (3) include rectangular block (31), the left side of rectangular block (31) is seted up flutedly, the inboard slidable mounting of rectangular block (31) left side recess has sliding plate (32), the bottom of sliding plate (32) is rotated with the one end of threaded rod (33) and is connected, threaded rod (33) run through rectangular block (31) and with rectangular block (31) threaded connection, the other end and knob (34) of threaded rod (33) are fixed, the inboard of rectangular block (31) left side recess is fixed with rubber pad (35).
4. The intelligent music learning and training device of claim 1, wherein: the table is characterized in that a lifting assembly (5) is fixed to the top of the table plate (1), the lifting assembly (5) comprises a fixing column (51), the fixing column (51) is fixed to the top of the table plate (1), the fixing column (51) penetrates through the bottom of the supporting plate (52) and is in sliding connection with the supporting plate (52), and a fastening bolt B (53) on the left side of the supporting plate (52) penetrates through and is in threaded connection with the fastening bolt B (53).
5. The intelligent music learning and training device of claim 1, wherein: fixed plate (41) inside is provided with adjusting part (6), adjusting part (6) include disc (61), disc (61) rotate and install the surface at fixed plate (41), disc (61) are fixed with worm (62), worm (62) run through fixed plate (41) and rotate with fixed plate (41) and be connected, worm (62) and worm wheel (63) meshing, worm wheel (63) are run through by bull stick (64) and are connected with bull stick (64) rotation, bull stick (64) rotate and install on the inner wall of fixed plate (41).
6. An intelligent music learning and training device according to claim 5, wherein: the rotating rod (64) penetrates through the bottom of the fixing plate (41) and is connected with the fixing plate (41) in a rotating mode, the bottom of the rotating rod (64) is fixed with the gear (65), the gear (65) is installed on the inner side of the through hole in the bottom of the fixing plate (41) in a rotating mode, and the rack (66) is fixed to the top of the seat plate (42).
7. An intelligent music learning and training device according to claim 5, wherein: an annular sliding groove is formed in the disc (61), and clamping teeth are arranged on the inner side of the annular sliding groove in the disc (61).
8. The intelligent music learning and training device of claim 7, wherein: disc (61) annular chute's inboard is provided with control assembly (7), control assembly (7) include slide bar (71), slide bar (71) slidable mounting is in disc (61) annular chute's inboard, slide bar (71) run through control lever (72) and with control lever (72) sliding connection, slide bar (71) are fixed with the one end of spring, the other end of spring is fixed on the inner wall of control lever (72).
9. The intelligent music learning and training device of claim 8, wherein: one side of the control rod (72) close to the sliding rod (71) is hinged to one end of the supporting rod (73), the other end of the supporting rod (73) is hinged to one end of the clamping block (74), the other end of the clamping block (74) is hinged to one end of the connecting rod (75), and the other end of the connecting rod (75) is hinged to the sliding rod (71).
CN202210264426.2A 2022-03-17 2022-03-17 Intelligent music learning and training device Pending CN114680466A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210264426.2A CN114680466A (en) 2022-03-17 2022-03-17 Intelligent music learning and training device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210264426.2A CN114680466A (en) 2022-03-17 2022-03-17 Intelligent music learning and training device

Publications (1)

Publication Number Publication Date
CN114680466A true CN114680466A (en) 2022-07-01

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Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205072383U (en) * 2015-11-03 2016-03-09 刘会贞 Sight protection entangles appearance ware
CN207821421U (en) * 2017-07-13 2018-09-07 应小菊 A kind of sitting position corrector
CN209360046U (en) * 2018-10-03 2019-09-10 常文娟 A kind of child-parent education reading tables
CN209733090U (en) * 2018-11-17 2019-12-06 绍兴市优尔网络科技有限公司 University student consultation platform
CN209789111U (en) * 2019-01-31 2019-12-17 徐州尚勤电子科技有限公司 Mine ventilation operation safety technology real operation teaching examination machine
CN210930389U (en) * 2019-07-09 2020-07-07 海南木星人教育科技有限公司 Sitting posture correction device for education and learning
CN211933053U (en) * 2019-12-31 2020-11-17 欣比贸易(上海)有限公司 Lifting table with replaceable rocking handle
CN212063034U (en) * 2020-04-10 2020-12-01 福建友鸿实业有限公司 Switch cabinet capable of preventing accidental touch
CN112493736A (en) * 2020-12-14 2021-03-16 重庆建筑工程职业学院 Engineering project online consultation device
CN112914242A (en) * 2021-03-01 2021-06-08 谢美凤 Desk and chair convenient to adjust
CN113170974A (en) * 2021-03-10 2021-07-27 福建中锐电子科技有限公司 Auxiliary evidence obtaining workstation based on artificial intelligence big data intelligent interview
CN213882291U (en) * 2020-09-29 2021-08-06 浙江树人工贸有限公司 Hand-operated lifting desk
CN214760072U (en) * 2021-02-05 2021-11-19 宁波市天河办公家具有限公司 Office desk
CN215182574U (en) * 2021-06-04 2021-12-14 郑州大学 Vocal music singing high pitch training aid

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205072383U (en) * 2015-11-03 2016-03-09 刘会贞 Sight protection entangles appearance ware
CN207821421U (en) * 2017-07-13 2018-09-07 应小菊 A kind of sitting position corrector
CN209360046U (en) * 2018-10-03 2019-09-10 常文娟 A kind of child-parent education reading tables
CN209733090U (en) * 2018-11-17 2019-12-06 绍兴市优尔网络科技有限公司 University student consultation platform
CN209789111U (en) * 2019-01-31 2019-12-17 徐州尚勤电子科技有限公司 Mine ventilation operation safety technology real operation teaching examination machine
CN210930389U (en) * 2019-07-09 2020-07-07 海南木星人教育科技有限公司 Sitting posture correction device for education and learning
CN211933053U (en) * 2019-12-31 2020-11-17 欣比贸易(上海)有限公司 Lifting table with replaceable rocking handle
CN212063034U (en) * 2020-04-10 2020-12-01 福建友鸿实业有限公司 Switch cabinet capable of preventing accidental touch
CN213882291U (en) * 2020-09-29 2021-08-06 浙江树人工贸有限公司 Hand-operated lifting desk
CN112493736A (en) * 2020-12-14 2021-03-16 重庆建筑工程职业学院 Engineering project online consultation device
CN214760072U (en) * 2021-02-05 2021-11-19 宁波市天河办公家具有限公司 Office desk
CN112914242A (en) * 2021-03-01 2021-06-08 谢美凤 Desk and chair convenient to adjust
CN113170974A (en) * 2021-03-10 2021-07-27 福建中锐电子科技有限公司 Auxiliary evidence obtaining workstation based on artificial intelligence big data intelligent interview
CN215182574U (en) * 2021-06-04 2021-12-14 郑州大学 Vocal music singing high pitch training aid

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