CN212256872U - Take teaching piano of rear-view mirror - Google Patents
Take teaching piano of rear-view mirror Download PDFInfo
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- CN212256872U CN212256872U CN202020753064.XU CN202020753064U CN212256872U CN 212256872 U CN212256872 U CN 212256872U CN 202020753064 U CN202020753064 U CN 202020753064U CN 212256872 U CN212256872 U CN 212256872U
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- piano
- rearview mirror
- fixed block
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Abstract
The utility model belongs to the technical field of teaching apparatus, in particular to a teaching piano with rearview mirrors, which comprises a whole piano, a top cover, a flip cover and a supporting base, wherein the top of the whole piano is movably connected with the top cover, the other side of the bottom of the top cover is movably connected with a supporting rod, the other side of the right front of the whole piano is embedded and connected with the rearview mirrors, the middle of the right front of the whole piano is movably connected with the flip cover, the bottom of the rearview mirrors is fixedly connected with a fixed block, the bottom of the whole piano is fixedly connected with the supporting base, the supporting base can ensure that a music teacher can adjust the position of a universal wheel inside the whole piano by manually rotating an adjusting disc anticlockwise when the whole piano needs to be moved to other positions for use, thereby the universal wheel can lift the whole piano, and the music teacher can move the whole piano more easily and laborsavingly, the device has the advantages of representing the mobility of the device and having wide development prospect in the future.
Description
Technical Field
The utility model relates to a teaching apparatus technical field specifically is a take teaching piano of rear-view mirror.
Background
When the music mr went up the music class to students, the music mr can teach the skill of playing the piano through the piano, when the music mr taught through the piano, the music mr can look over student's learning state through the rear-view mirror on the piano.
Present take teaching piano of rear-view mirror when needs move to other places and play, need many people to lift up the teaching piano of taking the rear-view mirror itself and remove, because the teaching piano of taking the rear-view mirror is itself heavier, so it is more labouring when moving through lifting up the teaching piano of taking the rear-view mirror, present teaching piano of taking the rear-view mirror all is provided with the rear-view mirror simultaneously, when the music mr needs to play the performance through this teaching piano of taking the rear-view mirror, the music mr can not be quick dismantles the rear-view mirror of the teaching piano of taking the rear-view mirror, thereby make the music mr use the teaching piano of taking the rear-view mirror to play the performance the whole pleasing to the eye meeting of the teaching piano of taking the rear-view mirror receive certain influence because of the rear-view mirror.
Therefore, how to design a teaching piano with a rearview mirror becomes a problem to be solved at present.
Disclosure of Invention
An object of the utility model is to provide a take teaching piano of rear-view mirror to the removal piano that proposes in solving above-mentioned background art is inconvenient when whole and can not be quick carries out the problem dismantled with the rear-view mirror.
In order to achieve the above object, the utility model provides a following technical scheme: a teaching piano with a rearview mirror comprises a piano body, a top cover, a turnover cover and a supporting base, wherein the top of the piano body is movably connected with the top cover, the other side of the bottom of the top cover is movably connected with a supporting rod, the other side of the front of the piano body is connected with the rearview mirror in an embedded manner, the middle of the front of the piano body is movably connected with the turnover cover, the bottom of the rearview mirror is fixedly connected with a fixed block, the middle of the inside of the fixed block is connected with a rearview mirror base in an embedded manner, one side of the bottom of the rearview mirror base is movably connected with a clamping block, one side of the top of the fixed block is movably connected with a movable column, one side of the clamping block is fixedly connected with a spring, the bottom of the piano body is fixedly connected with the supporting base, the, the outer periphery of the bottom of I-shaped gear has the interlock belt, the inside bottom swing joint of support base has the interlock gear, the middle through connection of interlock gear has the threaded rod, the bottom fixedly connected with connecting axle of threaded rod, the bottom fixedly connected with fixed plate of connecting axle, the bottom swing joint of fixed plate has the universal wheel.
Preferably, the bottom of the rearview mirror is fixedly connected with a metal universal pipe.
Preferably, the top of the other side inside the fixed block is movably connected with a movable cover.
Preferably, a fixed shaft is fixedly connected to the top of the inner part of the supporting base.
Preferably, the fixed block is formed by combining a rearview mirror base in the middle inside the fixed block, a movable cover at the top of the other side inside the fixed block, a clamping block at one side of the bottom of the rearview mirror base, a movable column at one side of the top of the fixed block and a spring at one side of the clamping block.
Preferably, the supporting base is formed by combining an adjusting disc at the other side of the supporting base, an I-shaped gear at the bottom of the other side in the supporting base, an interlocking belt at the periphery of the bottom of the I-shaped gear, a fixed shaft at the top in the supporting base, and an interlocking gear at the bottom of the fixed shaft and a threaded rod in the middle of the interlocking gear.
Compared with the prior art, the beneficial effects of the utility model are that:
1. this take teaching piano of rear-view mirror, the fixed block makes music mr install the rear-view mirror through such setting and observe sitting can be more quick and simple and convenient when student study state behind one's back, and also very simple and convenient when dismantling the rear-view mirror to make music mr need install or dismantle light and convenience that can be more when the rear-view mirror, embodied the device's dismantlement nature.
2. This take teaching piano of rear-view mirror supports the base and makes the music mr when needs carry out the use with piano global movement to other positions through such setting, and the music mr can adjust the position of universal wheel through manual anticlockwise rotation regulation disc to make the universal wheel lift up the piano wholly, and then make the music mr remove the whole light laborsaving that can more of piano, embodied the device's mobility.
Drawings
FIG. 1 is a schematic view of the overall structure of a piano of the present invention;
fig. 2 is a schematic view of the front sectional structure of the fixing block of the present invention;
FIG. 3 is a schematic view of the front cross-sectional structure of the supporting base of the present invention;
fig. 4 is an enlarged schematic structural diagram of the position a of the present invention.
The labels in the figure are: 1. the piano comprises a piano body, 2, a top cover, 3, a supporting rod, 4, a rearview mirror, 5, a flip cover, 6, a metal universal pipe, 7, a fixed block, 701, a rearview mirror base, 702, a movable cover, 703, a clamping block, 704, a movable column, 705, a spring, 8, a supporting base, 801, an adjusting disc, 802, an I-shaped gear, 803, a linkage belt, 804, a fixed shaft, 805, a linkage gear, 806, a threaded rod, 9, a connecting shaft, 10, a fixed plate, 11 and a universal wheel.
Detailed Description
The technical solution 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 some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a teaching piano with a rearview mirror comprises a piano body 1, a top cover 2, a flip cover 5 and a supporting base 8, wherein the top of the piano body 1 is movably connected with the top cover 2, the other side of the bottom of the top cover 2 is movably connected with a supporting rod 3, the other side of the front of the piano body 1 is connected with the rearview mirror 4 in an embedded manner, the middle of the front of the piano body 1 is movably connected with the flip cover 5, the bottom end of the rearview mirror 4 is fixedly connected with a fixed block 7, the middle of the inside of the fixed block 7 is connected with a rearview mirror base 701 in an embedded manner, one side of the bottom of the rearview mirror base 701 is movably connected with a clamping block 703, one side of the top of the fixed block 7 is movably connected with a movable column 704, one side of the clamping block 703 is fixedly connected with a spring 705, the bottom of the piano body 1 is, the periphery of the bottom of the I-shaped gear 802 is movably connected with a linkage belt 803, the bottom of the inside of the supporting base 8 is movably connected with a linkage gear 805, the middle of the linkage gear 805 is connected with a threaded rod 806 in a penetrating manner, the bottom of the threaded rod 806 is fixedly connected with a connecting shaft 9, the bottom of the connecting shaft 9 is fixedly connected with a fixing plate 10, and the bottom of the fixing plate 10 is movably connected with a universal wheel 11.
Preferably, the bottom fixedly connected with metal universal pipe 6 of rear-view mirror 4, the top of metal universal pipe 6 is in the same place with rear-view mirror 4 fixed connection, the bottom of metal universal pipe 6 is in the same place with rear-view mirror base 701 is fixed, and metal universal pipe 6 is put the angle and can not change under the effect of not having the external force, when the angle of putting of rear-view mirror 4 need be adjusted to the music mr, the music mr can reach the purpose of adjusting the angle of putting of rear-view mirror 4 through the angle of putting of manual regulation metal universal pipe 6, make the music mr can be more convenient adjust the angle of putting of rear-view mirror 4 through such setting.
Preferably, there is movable cover 702 inside opposite side top swing joint of fixed block 7, the both ends of movable cover 702 are provided with the slider, and the inside top both ends of fixed block 7 also are provided with the spout unanimous with the slider at movable cover 702 both ends, so when the music mr needs to use the whole 1 of piano to play the performance, the music mr can take out rear-view mirror base 701 from the inside of fixed block 7, take out the back, the music mr stimulates movable cover 702 toward one side of fixed block 7 again, thereby make movable cover 702 can move toward one side at the inside spout power of fixed block 7 through the slider in both ends, and then make movable cover 702 can place rear-view mirror base 701 with fixed block 7 cavity and seal up, make the whole 1 more pleasing to the eye when using the whole 1 of piano to play the performance.
Preferably, the fixed shaft 804 is fixedly connected to the top of the interior of the supporting base 8, the number of the fixed shafts 804 is three, the three fixed shafts are respectively arranged on the tops of the three threaded rods 806 and fixedly connected to the inner wall of the top of the interior of the supporting base 8, and two connecting rods are fixedly connected to two sides of the fixed shaft 804 and are fixed to the interlocking gear 805 at the bottom, so that when the interlocking belt 803 drives the interlocking gear 805 to rotate, the interlocking gear 805 can rotate correspondingly in situ due to the limitation of the connecting rods on two sides of the fixed shaft 804 and the fixed shaft 804, and when the interlocking gear 805 rotates in situ, the middle threaded rod 806 can be better driven to move up and down.
Preferably, the fixed block 7 is formed by combining a rear view mirror base 701 in the middle inside the fixed block 7, a movable cover 702 at the top of the other side inside the fixed block 7, a clamping block 703 at one side of the bottom of the rear view mirror base 701, a movable post 704 at one side of the top of the fixed block 7 and a spring 705 at one side of the clamping block 703, when a music teacher needs to use the rear view mirror 4 to observe the listening state of a student sitting behind, the music teacher can manually pull a bump at one side of the top of the movable cover 702 to drive the movable cover 702 to move towards the other side, when the movable cover 702 is acted by the music teacher, the movable cover can move towards the other side in a sliding groove through sliding blocks at two ends, after the movable cover 702 is opened, the music teacher can align the through hole in the middle of the fixed block 7 by holding the rear view mirror base 701 with hands, when aligning the rear view mirror base 701, the music teacher needs to align one, after the rear-view mirror base 701 is aligned with the front-view mirror base, a music teacher can press the rear-view mirror base 701 downwards, when the rear-view mirror base 701 moves downwards under the pressure of the music teacher, the bottom of the rear-view mirror base 701 can extrude the clamping block 703, the clamping block 703 can extrude the spring 705 on one side, the spring 705 can move towards one side when being extruded, the spring 705 can drive the movable column 704 and the clamping block 703 to move towards one side simultaneously when moving towards one side, after the clamping block 703 moves towards one side, the music teacher can easily press the rear-view mirror base 701 into the fixed block 7, after the music teacher presses the rear-view mirror base 701 into the fixed block 7, the clamping block 703 can move towards the other side due to the deformation force of the spring 705, so that the clamping block 703 can clamp the rear-view mirror base 701, when the music teacher needs to disassemble the rear-view mirror 4, the music mr can move toward one side through manual with activity post 703, thereby make spring 705 and fixture block 703 move toward one side simultaneously, it is just not just right to the confining force of rear-view mirror base 701 just to move the back toward one side at fixture block 703, afterwards, the music mr just can be relaxed takes out rear-view mirror base 701 from the inside of fixed block 7, it just can to cover movable cover 702 after taking out again, it makes the music mr to install rear-view mirror 4 through such setting and observes that to sit student's learning state behind one's back can be more quick and simple and convenient when needing to install, and also very simple and convenient when dismantling rear-view mirror 4, thereby make the music mr can be more light and convenient when needing to install or dismantle rear-view mirror 4, the dismantlement nature of the device has been embodied.
Preferably, the supporting base 8 is formed by combining an adjusting disc 801 at the other side of the supporting base 8, an i-shaped gear 802 at the bottom of the other side inside the supporting base 8, a linkage belt 803 at the periphery of the bottom of the i-shaped gear 802, a fixed shaft 804 at the top inside the supporting base 8, a linkage gear 805 at the bottom of the fixed shaft 804 and a threaded rod 806 in the middle of the linkage gear 805, when a music teacher needs to move the piano whole 1 to other places for teaching or playing, the music teacher can manually rotate the adjusting disc 801 counterclockwise, when the adjusting disc 801 rotates counterclockwise, the i-shaped gear 802 at the bottom of one side is driven to rotate clockwise, when the i-shaped gear 802 rotates clockwise, the linkage belt 803 at the periphery is driven to rotate clockwise simultaneously, and when the linkage belt 803 rotates clockwise, the linkage gear 805 is driven to rotate clockwise together, since the interlocking gear 805 is connected to the fixed shaft 804 by two connecting rods, when the interlocking gear 805 rotates clockwise, the connecting rod drives the fixed shaft 804 to rotate clockwise, and because the length of the connecting rod does not change, the interlocking gear 805 can only rotate in place when rotating clockwise, when the interlocking gear 805 rotates clockwise, the middle threaded rod 806 moves downward slowly due to the threaded groove formed in the middle inside the interlocking gear 805, when the threaded rod 806 moves downward, the connecting shaft 9 drives the fixed plate 10 and the universal wheel 11 to move downward, when the universal wheel 11 moves downward, the universal wheel 11 slowly contacts with the ground, and as the music teacher continuously rotates the adjusting disc 801, the universal wheel 11 slowly lifts up the piano whole 1, and after the universal wheel 11 lifts up the piano whole 1, the music mr just can stop continuing anticlockwise rotation regulation disc 801 (because the inside thread groove that is the same with threaded rod 806 that also is provided with of three spinal branch vaulting poles of support base 8 bottom, so when the music mr stops rotation regulation disc 801, threaded rod 806 also can not be because of the whole 1 weight of piano and toward the inside withdrawal that supports base 8), later the music mr just can be through the whole 1 of piano of light promotion of universal wheel 11, make the music mr when needing to move the whole 1 of piano to other positions to use through such setting, the music mr can adjust the position of universal wheel 11 through manual anticlockwise rotation regulation disc 801, thereby make universal wheel 11 lift the whole 1 of piano, and then make the music mr can be more light laborsaving at the whole 1 of mobile piano, embodied the mobility of the device.
The working principle is as follows: at first, the top of metal universal pipe 6 is in the same place with rear-view mirror 4 fixed connection, the bottom of metal universal pipe 6 is in the same place with rear-view mirror base 701 is fixed, and metal universal pipe 6 is put the angle and can not change under the effect of not having the external force, when the angle of putting of rear-view mirror 4 need be adjusted to the music mr, the music mr can reach the purpose of adjusting the angle of putting of rear-view mirror 4 through the angle of putting of manually adjusting metal universal pipe 6, make the music mr can be more convenient adjust the angle of putting of rear-view mirror 4 through such setting.
Then, both ends of movable cover 702 are provided with the slider, and the inside top both ends of fixed block 7 also are provided with the spout unanimous with the slider at movable cover 702 both ends, so when the music mr need use the whole 1 of piano to play the performance, the music mr can take out rear-view mirror base 701 from the inside of fixed block 7, take out the back, the music mr pulls movable cover 702 toward one side of fixed block 7 again, thereby make movable cover 702 can move toward one side through the inside spout power of fixed block 7 through the slider in both ends, and then make movable cover 702 can place rear-view mirror base 701's cavity with fixed block 7 and seal up, make the whole 1 of piano more pleasing to the eye when the whole 1 of piano is playing the performance using the piano.
Then, the three fixing shafts 804 are respectively arranged on the tops of the three threaded rods 806 and fixedly connected with the inner wall of the top of the supporting base 8, and two connecting rods are fixedly connected to two sides of the fixing shaft 804 and fixed with the bottom linkage gear 805, so that when the linkage belt 803 drives the linkage gear 805 to rotate, the linkage gear 805 can rotate correspondingly in situ due to the limitation of the two connecting rods on the two sides of the fixing shaft 804 and the fixing shaft 804, and when the linkage gear 805 rotates in situ, the middle threaded rod 806 can be better driven to move up and down.
Next, when the music teacher needs to use the rearview mirror 4 to observe the state of the student sitting behind the back, the music teacher can manually pull the convex block on one side of the top of the movable cover 702 to drive the movable cover 702 to move towards the other side, when the movable cover 702 is acted by the music teacher, the movable cover can move towards the other side in the sliding groove through the sliding blocks on the two ends, after the movable cover 702 is opened, the music teacher can aim at the through hole in the middle of the fixed block 7 by taking the rearview mirror base 701 with hands, when aiming at the rearview mirror base 701, the music teacher needs to pay attention to aim at one side of the bayonet at one side of the through hole of the fixed block 7, after aiming, the music teacher can press the rearview mirror base 701 downwards, when the rearview mirror base 701 moves downwards through the pressure of the music teacher, the bottom of the rearview mirror base 701 can extrude the clamping block 703, and after the clamping block 703 is extruded, the spring on one side can be extruded, when the spring 705 is extruded, the spring 705 moves to one side and simultaneously drives the movable column 704 and the fixture block 703 to move to one side, after the fixture block 703 moves to one side, a music teacher can easily press the rearview mirror base 701 into the fixed block 7, after the music teacher presses the rearview mirror base 701 into the fixed block 7, the fixture block 703 moves to the other side due to the deformation force of the spring 705, so that the fixture block 703 can clamp the rearview mirror base 701, when the music teacher needs to disassemble the rearview mirror 4, the music teacher can manually move the movable column 703 to one side, so that the spring 705 and the fixture block move to one side simultaneously, the restriction force on the rearview mirror base 701 after the fixture block moves to one side is not existed, and then the music teacher can easily take out the rearview mirror base 701 from the inside of the fixed block 7, it is right to take out afterwards to cover movable cover 702 again, through such setting up make the music mr need install rear-view mirror 4 observe the student who sits behind one's back study state can be quick and simple more, and also very simple and convenient when dismantling rear-view mirror 4 to make the music mr can be more light and convenient when needing to install or dismantle rear-view mirror 4, embodied the dismantlement nature of the device.
Finally, when the music teacher needs to move the piano whole 1 to other places for teaching or playing, the music teacher may manually rotate the adjusting disc 801 counterclockwise, and when the adjusting disc 801 rotates counterclockwise, the adjusting disc will drive the i-shaped gear 802 at the bottom of one side to rotate clockwise, and when the i-shaped gear 802 rotates clockwise, the adjusting disc will drive the peripheral interlocking belt 803 to rotate clockwise, and when the interlocking belt 803 rotates clockwise, the interlocking gear 805 will be driven to rotate clockwise, because the interlocking gear 805 is connected to the fixed shaft 804 by two connecting rods, and when the interlocking gear 805 rotates clockwise, the fixed shaft 804 will be driven to rotate clockwise by the connecting rods, and because the length of the connecting rods will not change, the interlocking gear 805 can only rotate in place when rotating clockwise, and when the interlocking gear 805 rotates in place, the middle threaded rod 806 will rotate clockwise because of the interlocking gear 805 The middle thread groove is arranged to slowly move downwards, when the thread rod 806 moves downwards, the fixing plate 10 and the universal wheel 11 are driven by the connecting shaft 9 to move downwards, when the universal wheel 11 moves downwards, the universal wheel 11 slowly contacts with the ground, because the music teacher continuously rotates the adjusting disc 801, the universal wheel 11 slowly lifts up the whole piano 1, after the universal wheel 11 lifts up the whole piano 1, the music teacher can stop continuously rotating the adjusting disc 801 anticlockwise (because the thread grooves which are the same as the thread rod 806 are also arranged inside the three support rods at the bottom of the support base 8, when the music teacher stops rotating the adjusting disc 801, the thread rod 806 can not retract into the support base 8 due to the weight of the whole piano 1), and then the music teacher can easily push the whole piano 1 through the universal wheel 11, make the music mr when needs move the whole 1 of piano to other positions and use through such setting, the music mr can adjust the position of universal wheel 11 through manual anticlockwise rotation regulation disc 801 to make the universal wheel 11 lift the whole 1 of piano, and then make the music mr remove the whole 1 of piano light laborsaving more, embodied the mobility of the device, this is exactly the theory of operation of this kind of teaching piano of taking the rear-view mirror.
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 (7)
1. The utility model provides a take teaching piano of rear-view mirror, includes that the piano is whole (1), top cap (2), flip (5) and support base (8), its characterized in that: the top of the whole piano body (1) is movably connected with a top cover (2), the other side of the bottom of the top cover (2) is movably connected with a support rod (3), the other side of the dead ahead of the whole piano body (1) is connected with a rearview mirror (4) in an embedded manner, the middle of the dead ahead of the whole piano body (1) is movably connected with a flip cover (5), the bottom of the rearview mirror (4) is fixedly connected with a fixed block (7), the middle of the inside of the fixed block (7) is connected with a rearview mirror base (701) in an embedded manner, one side of the bottom of the rearview mirror base (701) is movably connected with a clamping block (703), one side of the top of the fixed block (7) is movably connected with a movable column (704), one side of the clamping block (703) is fixedly connected with a spring (705), the bottom of the whole piano body (1) is, the utility model discloses a supporting base, including support base (8), the inside opposite side bottom swing joint of support base (8) has I-shaped gear (802), the peripheral swing joint in bottom of I-shaped gear (802) has interlock belt (803), the inside bottom swing joint of support base (8) has interlock gear (805), the centre through connection of interlock gear (805) has threaded rod (806), the bottom fixedly connected with connecting axle (9) of threaded rod (806).
2. The teaching piano with rearview mirror as claimed in claim 1, characterized in that: the bottom of the connecting shaft (9) is fixedly connected with a fixing plate (10), and the bottom of the fixing plate (10) is movably connected with a universal wheel (11).
3. The teaching piano with rearview mirror as claimed in claim 1, characterized in that: the bottom of the rearview mirror (4) is fixedly connected with a metal universal pipe (6).
4. The teaching piano with rearview mirror as claimed in claim 1, characterized in that: the top of the other side of the inside of the fixed block (7) is movably connected with a movable cover (702).
5. The teaching piano with rearview mirror as claimed in claim 1, characterized in that: the top of the inner part of the supporting base (8) is fixedly connected with a fixed shaft (804).
6. The teaching piano with rearview mirror as claimed in claim 1, characterized in that: the fixed block (7) is formed by combining a rearview mirror base (701) in the middle of the inside of the fixed block (7), a movable cover (702) at the top of the other side of the inside of the fixed block (7), a clamping block (703) at one side of the bottom of the rearview mirror base (701), a movable column (704) at one side of the top of the fixed block (7) and a spring (705) at one side of the clamping block (703).
7. The teaching piano with rearview mirror as claimed in claim 1, characterized in that: the supporting base (8) is formed by combining an adjusting disc (801) on the other side of the supporting base (8), an I-shaped gear (802) at the bottom of the other side in the supporting base (8), a linkage belt (803) on the periphery of the bottom of the I-shaped gear (802), a fixing shaft (804) at the top in the supporting base (8), a linkage gear (805) at the bottom of the fixing shaft (804) and a threaded rod (806) in the middle of the linkage gear (805).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202020753064.XU CN212256872U (en) | 2020-05-09 | 2020-05-09 | Take teaching piano of rear-view mirror |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN202020753064.XU CN212256872U (en) | 2020-05-09 | 2020-05-09 | Take teaching piano of rear-view mirror |
Publications (1)
Publication Number | Publication Date |
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CN212256872U true CN212256872U (en) | 2020-12-29 |
Family
ID=73998695
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN202020753064.XU Expired - Fee Related CN212256872U (en) | 2020-05-09 | 2020-05-09 | Take teaching piano of rear-view mirror |
Country Status (1)
Country | Link |
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CN (1) | CN212256872U (en) |
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2020
- 2020-05-09 CN CN202020753064.XU patent/CN212256872U/en not_active Expired - Fee Related
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CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201229 Termination date: 20210509 |
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