CN210930201U - Multifunctional reading rack - Google Patents
Multifunctional reading rack Download PDFInfo
- Publication number
- CN210930201U CN210930201U CN201921349537.3U CN201921349537U CN210930201U CN 210930201 U CN210930201 U CN 210930201U CN 201921349537 U CN201921349537 U CN 201921349537U CN 210930201 U CN210930201 U CN 210930201U
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- China
- Prior art keywords
- clamping seat
- vertical rod
- bottom plate
- panel
- lower clamping
- 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.)
- Withdrawn - After Issue
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- 239000004576 sand Substances 0.000 claims description 2
- 210000004907 gland Anatomy 0.000 description 11
- 238000010079 rubber tapping Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model discloses a multifunctional reading rack, which comprises a panel, a supporting component arranged on the panel and used for supporting books, and a bracket used for supporting the panel, wherein the bracket comprises a vertical rod provided with screw threads, the vertical rod is connected with a screwing sleeve by screw threads, the lower end part of the vertical rod is provided with a lower clamping seat, the lower surface of the vertical rod is detachably connected with a bottom plate, an upper clamping seat which is sleeved on the vertical rod and can slide along the axial direction of the vertical rod is arranged between the lower clamping seat and the screwing sleeve, the multifunctional reading rack is provided with a table edge and a table top using state, when the multifunctional reading rack is in the table edge using state, the bottom plate is detached from the lower clamping seat, the distance between the lower clamping seat and the upper clamping seat is adjusted by the screwing sleeve, the multifunctional reading rack can adapt to various table edges with different thicknesses, the screwing sleeve is screwed on the vertical rod to push the upper clamping seat to move downwards and the lower clamping seat to clamp, the bottom plate is connected to the lower surface of the lower clamping seat, and the reading frame is supported on a table top through the bottom plate for use.
Description
Technical Field
The utility model relates to a stationery field especially relates to a multifunctional reading rack.
Background
Books are main learning materials, when people read the books normally, the books are flatly placed on a desktop, the angle between the surface of the books and the sight line of eyes of the people is large, the angle is not suitable, and the eyes are easy to fatigue; in addition, if the hands do not press the two sides of the book during reading or writing, the pages are easy to automatically buckle by self elasticity; if the book is stood up for reading, the two sides of the book need to be held by the two hands for a long time, the two hands feel tired, and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a can enough place the use on the desktop, can the centre gripping again the multi-functional reading frame that uses on the table limit, when this reading frame centre gripping uses on the table limit, can adapt to the table limit of multiple thickness and can firmly centre gripping on the table limit more.
In order to achieve the above object, the utility model adopts the technical scheme that the multifunctional reading rack comprises:
a panel for placing a book;
a support assembly for supporting a book, the support assembly being disposed on a front side of the panel;
a bracket for supporting the panel, the bracket being disposed at a rear surface of the panel;
the support comprises a vertical rod with threads on the outer circumferential surface, a screwing sleeve in threaded fit connection with the vertical rod is sleeved on the vertical rod, a lower clamping seat is arranged at the lower end of the vertical rod, an upper clamping seat which is sleeved on the vertical rod and can axially slide along the vertical rod is arranged between the lower clamping seat and the screwing sleeve, and the lower surface of the lower clamping seat is detachably connected with a bottom plate;
the multifunctional reading frame is provided with a table-side using state and a table-top using state, when the multifunctional reading frame is in the table-side using state, the bottom plate is detached from the lower surface of the lower clamping seat, and the multifunctional reading frame is clamped on the table side through the lower clamping seat, the upper clamping seat and the screwing sleeve for use; when the multifunctional reading frame is in a desktop use state, the bottom plate is connected to the lower surface of the lower clamping seat, and the multifunctional reading frame is supported on the desktop through the bottom plate for use.
Preferably, there are two of said brackets.
Preferably, the upper end of pole setting is equipped with the connector, the connector with the panel is rotationally connected when the reading stand is in fold condition, the pole setting with the back of panel is laminated mutually.
Further preferably, the upper surface of the upper holder extends transversely along the axial line of the upright, and when the reading stand is in the folded state, the upper surface is located below the bottom end of the panel.
Preferably, when the base plate is attached to the lower surface of the lower holder, the lower holder is located at a middle position of the base plate.
Preferably, the lower surface of the bottom plate is provided with a bottom plate non-slip mat.
Preferably, the lower surface of the upper clamping seat and the upper surface of the lower clamping seat are both provided with anti-slip gaskets.
Preferably, be equipped with anti-skidding structure on screwing tightly the outer periphery of cover, anti-skidding structure includes follows screwing tightly a plurality of sand grips of cover axial extension.
Further preferably, the outer periphery of pole setting has at least one edge the guide plane of pole setting axial extension, pole setting axis apart from the distance of guide plane is less than the radius of pole setting, the upper portion of going up the holder has the cover and establishes the uide bushing in the pole setting, the uide bushing only can drive go up the holder follows the axial of pole setting reciprocates, can not the horizontal rotation for lower holder and last holder pass through when screwing up the cover and press from both sides tightly, can keep on same axis.
Further preferably, the upper end of the guide sleeve is provided with an upward convex bulge, the lower end of the screwing sleeve is provided with an upward concave annular concave cavity surrounding the axial lead of the screwing sleeve, and when the screwing sleeve and the guide sleeve are tightly abutted, the bulge is inserted into the annular concave cavity.
Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages:
1. the utility model provides a multifunctional reading rack, through connecting the bottom plate detachable on the lower surface of lower holder, make this multifunctional reading rack have table limit user state and desktop user state, when it is in table limit user state, the bottom plate is pulled down from the lower surface of the lower holder, the reading rack is through the lower holder, the upper holder, the cover centre gripping of screwing is used on the table limit; when the multifunctional reading stand is in a desktop use state, the bottom plate is connected to the lower surface of the lower clamping seat, and the multifunctional reading stand is supported on a desktop for use through the bottom plate;
2. when the multifunctional reading frame provided by the utility model is in a table side use state, the distance between the lower clamping seat and the upper clamping seat is adjusted by screwing the sleeve, so that the multifunctional reading frame can adapt to various table sides with different thicknesses;
3. the utility model provides a when multi-functional book stand is in table limit user state, through with the direction slip of going up the holder to being close lower holder for lower holder and last holder grasp the upper and lower surface on table limit, screw in the pole setting through the cover of will screwing again, promote the holder and remove down and the holder presss from both sides tight table limit together down, make the centre gripping more firm.
Drawings
Fig. 1 is a front perspective view of the present invention in a folded state;
fig. 2 is a back perspective view of the present invention in a folded state;
FIG. 3 is a front perspective view of the panel and support assembly of the present invention in an expanded state;
FIG. 4 is a back perspective view of the panel and support assembly in an expanded state of the present invention;
FIG. 5 is a detail view of the left slide plate and the left gland of the present invention;
FIG. 6 is a schematic view of the left and right movement of the left slide plate of the present invention;
FIG. 7 is an axial view of the utility model in a table-side use state;
FIG. 8 is an axial view of the utility model in a table-side use position, showing the upper clamping seat anti-slip pad prominently;
FIG. 9 is an axial view of the utility model in a table-side use position, showing the lower clamping seat anti-slip pad prominently;
FIG. 10 is an enlarged view taken at A of FIG. 9;
FIG. 11 is a side view of the present invention in use at a desk and clamped to a desk;
FIG. 12 is a rear perspective view of the present invention when in a desk-side use position and clamped on a desk for placing books;
FIG. 13 is a front perspective view of the present invention in a desk-side use position, clamped on a desk and having a book placed thereon;
FIG. 14 is a bottom perspective view of the present invention in a desktop use position;
FIG. 15 is a rear perspective view of the present invention in a desktop use position and placed on a desktop;
FIG. 16 is a front perspective view of the present invention in use on a table top and placed on the table top;
fig. 17 is a rear perspective view of the utility model in a desktop use state and when placed on a desktop for placing books;
FIG. 18 is a front perspective view of the present invention in a desktop use position and placed on a desktop for placing books;
FIG. 19 is a longitudinal cross-sectional view of the stand portion of the present invention in a desktop use position;
FIG. 20 is an enlarged view at B of FIG. 19;
FIG. 21 is a transverse cross-sectional view of the stand portion of the present invention in a desktop use position;
fig. 22 is an effect diagram of the left cover upper clip of the present invention clamping a part of the pages.
Wherein: 1. a panel; 2. a left slide plate; 3. a left gland; 4. a clamping piece is arranged on the left gland; 5. a left spring; 6. a left pin; 7. a right slide plate; 8. a right gland; 9. a clamping piece is arranged on the right gland; 10. a right spring; 11. a right pin; 12. a left upper rotating plate; 13. a right upper rotating plate; 14. a left lower rotating plate; 15. a right lower rotating plate; 16. a middle U-shaped groove; 17. a left lower book supporting plate; 18. a middle book supporting plate; 19. a right lower book supporting plate; 20. self-tapping at the upper right; 21. self-tapping at the upper left; 22. self-tapping at the lower right; 23. self-tapping at the lower left; 24. a left skateboard screw; 25. a right skateboard screw; 26. a left lower clamp base; 27. a left upright stanchion; 28. a left base plate support column; 29. a left lower clamping seat anti-skid pad; 30. the left upper clamping seat anti-skid pad; 31. a left upper clamping seat; 32. screwing the sleeve leftwards; 33. a left upright guide plane; 34. a left connector; 35. a left upper nut; 36. a first non-slip mat; 37. a second non-slip mat; 38. a left carriage bolt; 39. a right lower clamp base; 40. a right upright rod; 41. a right base plate support post; 42. a right lower clamping seat anti-skid pad; 43. the upper right clamping seat anti-skid pad; 44. a right upper clamping seat; 45. d, rightwards screwing the sleeve; 46. a right upright guide plane; 47. a right connector; 48. a right upper nut; 49. a third anti-skid pad; 50. a fourth anti-skid pad; 51. a right carriage bolt; 52. a desk top; 53. a book; 54. a base plate; 55. screwing the nut downwards and leftwards; 56. screwing the nut downwards and rightwards; 57. a first base plate cleat; 58. a second base plate cleat; 59. a third base plate non-slip mat; 60. and a fourth base plate anti-skid pad.
Detailed Description
The technical scheme of the utility model is further explained by the following figures:
the left and right directions in the utility model refer to the left and right directions in the attached figure 1, and the up and down directions in the utility model refer to the up and down directions in the attached figure 1; the utility model discloses in each part name left and right, upper and lower only be used for distinguishing the part that the structure is the same, do not have specific meaning, like "the lower nut that screws" does not represent "the nut that can screw to the rotation of left below".
As shown in fig. 1-2, the utility model provides a multifunctional reading stand, which comprises: the book support comprises a panel 1 for placing a book, a support assembly arranged on the front surface of the panel 1 and used for supporting the book, and a bracket arranged on the back surface of the panel 1 and used for supporting the panel 1.
As shown in fig. 3-4, the support assembly includes: the left sliding plate 2, the right sliding plate 7, the left upper rotating plate 12, the right upper rotating plate 13, the left lower rotating plate 14, the right lower rotating plate 15, the left lower book supporting plate 17, the middle book supporting plate 18 and the right lower book supporting plate 19, wherein the left upper rotating plate 12 is rotatably connected to the panel 1 through an upper left self-tapping 21, the right upper rotating plate 13 is rotatably connected to the panel 1 through an upper right self-tapping 20, the left lower rotating plate 14 is rotatably connected to the panel 1 through a lower left self-tapping 23, and the right lower rotating plate 15 is rotatably connected to the panel 1 through a lower right self-tapping 22; the left sliding plate 2 and the right sliding plate 7 are slidably arranged on the panel 1; the left lower book supporting plate 17, the middle book supporting plate 18 and the right lower book supporting plate 19 are used for supporting the lower end of a book; the support assembly has an unfolded state in which a portion of each of the left slide plate 2, the right slide plate 7, the upper left rotation plate 12, the upper right rotation plate 13, the lower left rotation plate 14, and the lower right rotation plate 15 is outside the area of the panel 1, as shown in fig. 3.
The left slide plate 2 and the right slide plate 7 are both provided with a structure for clamping pages, the structure of the right slide plate 7 is the same as that of the left slide plate 2, and the structure of the left slide plate 2 is taken as an example for explanation.
As shown in fig. 5-6, a left cover 3, a left cover upper clamping piece 4, a left spring 5, and a left pin 6 are disposed on the left slide plate 2, wherein the left cover 3 is connected to the upper surface of the left slide plate 2 through the left pin 6, the left spring 5 is sleeved on the left pin 6, one end of the left spring 5 contacts with the upper surface of the left slide plate 2, and the other end contacts with the lower surface of the left cover 3, the left end of the left cover 3 is pressed, the right end of the left cover 3 is tilted upward, so that a space for placing pages is formed between the right end of the left cover 3 and the upper surface of the left slide plate 2, the force for pressing the left cover 3 is cancelled, and the right end of the left cover 3 moves downward under the elastic force of the left spring 5 to clamp the pages placed in the space; the left end of the clamping piece 4 on the left gland is connected to the left gland 3, a certain gap is formed between the right end of the clamping piece 4 on the left gland and the upper surface of the left gland 3, so that when the page is clamped by the left gland 3, part of pages needing to be read are placed in the gap, and when the page needs to be turned, the page can be turned without opening the left gland 3, as shown in fig. 22.
Preferably, there are two brackets, namely a left bracket and a right bracket, and the left bracket and the right bracket have the same structure, and the left bracket is taken as an example to describe the bracket structure.
As shown in fig. 7, the left bracket includes: the left upper clamping seat 26 is sleeved on the left upright rod 27, and a left upper clamping seat 31 which is sleeved on the left upright rod 27 and can axially slide along the left upright rod 27 is arranged between the left lower clamping seat 26 and the left rotary sleeve 32; as shown in fig. 8-9, the lower surface of the upper left clamping seat 31 is provided with an upper left clamping seat anti-slip pad 30, and the upper surface of the lower left clamping seat 26 is provided with a lower left clamping seat anti-slip pad 29; the upper end of the left bracket is provided with a left connector 34, the left connector 34 is rotatably connected between two connecting sheets extending out of the back surface of the panel 1 through a left carriage bolt 38, the left carriage bolt 38 sequentially penetrates through a through hole on one connecting sheet, a second anti-skid pad 37, the left connector 34, a first anti-skid pad 36 and the other connecting sheet from right to left, the left connector 34 is rotatably connected to the back surface of the panel 1, and when the left connector 34 rotates to a proper angle, the left carriage bolt 38 is locked through an upper left nut 35 for fixing; the upper surface of the upper left clamping seat 31 extends transversely along the axial lead of the left upright rod 27, when the multifunctional reading stand is folded, the left connector 34 drives the left bracket to be attached to the back surface of the panel 1, and the upper surface of the upper left clamping seat 31 moves to the position below the bottom end of the panel 1; as shown in fig. 9-10, in order to prevent the upper left holder 31 from rotating around the left vertical rod 27, two left vertical rod guide planes 33 are disposed on the outer circumferential surface of the left vertical rod 27 and extend along the axial direction of the left vertical rod 27, and the two left vertical rod guide planes 33 are disposed axially symmetrically along the left vertical rod 27, the distance from the axis of the left vertical rod 27 to the left vertical rod guide plane 33 is smaller than the radius of the left vertical rod 27, the upper portion of the upper left holder 31 has a left guide sleeve fitted over the left vertical rod 27, the radial section of the inner surface of the left guide sleeve is non-circular, and a part of the inner surface of the left guide sleeve is fitted with the left vertical rod guide plane 33, so that the left guide sleeve can only drive the upper left holder 31 to move up and down along the axial direction of the left vertical rod 27, and cannot rotate left and right, so that the lower left holder 26 and the upper left holder 31 can be maintained on; as shown in fig. 11, a lower surface of the left lower clamping seat 26 is provided with a left bottom plate supporting column 28 protruding downwards, and an outer surface of the left bottom plate supporting column 28 is provided with threads; in order to prevent slipping when the left tightening sleeve 32 is rotated, a plurality of convex strips extending along the axial direction of the left tightening sleeve 32 are arranged on the outer circumferential surface of the left tightening sleeve 32, and the convex strips are distributed on the outer circumferential surface of the left tightening sleeve 32 at intervals.
As shown in fig. 11-13, the utility model provides a multifunctional reading rack has table limit user state, when being in this state, multifunctional reading rack uses at the table limit through lower holder, upper holder, the tight cover centre gripping of screwing, and fig. 11 is the utility model discloses be in table limit user state and the side view of centre gripping on the desk, emphatically demonstrate the state of the tight cover centre gripping of left side holder 26, upper left holder 31, left side when the table limit.
As shown in fig. 14-18, the left bottom plate supporting column 28 and the right bottom plate supporting column 41 respectively pass through the through holes on the bottom plate 54, the bottom plate 54 is locked on the lower surfaces of the left lower clamping seat 26 and the right lower clamping seat 39 by the left lower screwing nut 55 and the right lower screwing nut 56 sleeved on the left bottom plate supporting column 28, and the bottom plate 54 is connected on the lower surfaces of the left lower clamping seat 26 and the right lower clamping seat 39, so that the utility model provides a multifunctional reading frame can be switched to a desktop using state, and when in this state, the multifunctional reading frame is supported on the desktop by the bottom plate 54 for use.
As shown in fig. 14-15, the base 54 is an H-shaped plate, the left lower holder 26 and the right lower holder 39 are respectively located at two ends of the H-shaped middle cross bar, and the lower surfaces of the four corners of the base 54 are respectively provided with a first bottom plate anti-slip pad 57, a second bottom plate anti-slip pad 58, a third bottom plate anti-slip pad 59, and a fourth bottom plate anti-slip pad 60, so that when the multifunctional reading stand is supported on a desktop through the bottom plate 54, the friction force between the bottom plate 54 and the desktop is increased, and the stability of the multifunctional reading stand in the desktop use state is improved.
As shown in fig. 19-21, the upper portion of the upper left clamping seat 31 has a left guide sleeve sleeved on the left vertical rod 27, the upper end portion of the left guide sleeve is provided with an annular protrusion protruding upward around the axial lead of the left guide sleeve, the lower end portion of the left tightening sleeve 32 is provided with an upward recessed left annular cavity around the axial lead of the left tightening sleeve 32, and when the left tightening sleeve 32 rotates and moves downward and is tightly abutted against the left guide sleeve, the left annular protrusion is inserted into the left annular cavity and is tightly abutted against the left guide sleeve, so that the left tightening sleeve 32 and the left guide sleeve are tightly connected; similarly, the upper portion of the upper right holder 44 has a right guide sleeve sleeved on the right vertical rod 40, the upper end portion of the right guide sleeve is provided with an annular protrusion protruding upward around the axial lead of the right guide sleeve, the lower end portion of the right tightening sleeve 45 is provided with an upward recessed right annular cavity surrounding the axial lead of the right tightening sleeve 45, and when the right tightening sleeve 45 rotates and moves downward and abuts against the right guide sleeve, the right annular protrusion is inserted into the right annular cavity and abuts against the right annular cavity, so that the right tightening sleeve 45 and the right guide sleeve are tightly connected.
In the above embodiment, the left vertical rod 27 and the right vertical rod 40 are both hollow tubes, which not only reduces the overall weight of the reading stand, but also saves a certain amount of material.
The above embodiments are only for illustrating the technical conception and the features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (10)
1. A multi-functional reading stand, comprising:
a panel for placing a book;
a support assembly for supporting a book, the support assembly being disposed on a front side of the panel;
a bracket for supporting the panel, the bracket being disposed at a rear surface of the panel;
the method is characterized in that:
the support comprises a vertical rod with threads on the outer circumferential surface, a screwing sleeve in threaded fit connection with the vertical rod is sleeved on the vertical rod, a lower clamping seat is arranged at the lower end of the vertical rod, an upper clamping seat which is sleeved on the vertical rod and can axially slide along the vertical rod is arranged between the lower clamping seat and the screwing sleeve, and the lower surface of the lower clamping seat is detachably connected with a bottom plate;
the multifunctional reading frame is provided with a table-side using state and a table-top using state, when the multifunctional reading frame is in the table-side using state, the bottom plate is detached from the lower surface of the lower clamping seat, and the multifunctional reading frame is clamped on the table side through the lower clamping seat, the upper clamping seat and the screwing sleeve for use; when the multifunctional reading frame is in a desktop use state, the bottom plate is connected to the lower surface of the lower clamping seat, and the multifunctional reading frame is supported on the desktop through the bottom plate for use.
2. A multi-function reading stand according to claim 1 wherein: the number of the brackets is two.
3. A multi-function reading stand according to claim 1 wherein: the upper end of pole setting is equipped with the connector, the connector with the panel is rotationally connected when the reading frame is in fold condition, the pole setting with the back of panel is laminated mutually.
4. A multi-function reading stand according to claim 3 wherein: the upper surface of the upper clamping seat transversely extends along the axial lead of the vertical rod, and when the reading rack is in a folded state, the upper surface is positioned below the bottom end of the panel.
5. A multi-function reading stand according to claim 1 wherein: when the bottom plate is connected to the lower surface of the lower clamping seat, the lower clamping seat is located in the middle of the bottom plate.
6. A multi-function reading stand according to claim 1 wherein: and the lower surface of the bottom plate is provided with a bottom plate non-slip mat.
7. A multi-function reading stand according to claim 1 wherein: the lower surface of going up the holder with the upper surface of holder all is equipped with anti-skidding gasket down.
8. A multi-function reading stand according to claim 1 wherein: be equipped with anti-skidding structure on screwing the outer periphery of cover, anti-skidding structure includes the edge a plurality of sand grips of screwing the axial extension of cover.
9. A multi-function reading stand according to any one of claims 2 to 8 wherein: the outer periphery of pole setting has at least one edge the guide plane of pole setting axial extension, pole setting axis apart from guide plane's distance is less than the radius of pole setting, the upper portion of going up the holder has the cover and establishes the uide bushing in the pole setting, the uide bushing only can drive go up the holder and follow the axial of pole setting reciprocates.
10. A multi-function reading stand according to claim 9 wherein: the upper end of the guide sleeve is provided with an upward convex bulge, the lower end of the screwing sleeve is provided with an upward concave annular concave cavity surrounding the axial lead of the screwing sleeve, and when the screwing sleeve and the guide sleeve are tightly abutted, the bulge is inserted into the annular concave cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921349537.3U CN210930201U (en) | 2019-08-20 | 2019-08-20 | Multifunctional reading rack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921349537.3U CN210930201U (en) | 2019-08-20 | 2019-08-20 | Multifunctional reading rack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210930201U true CN210930201U (en) | 2020-07-07 |
Family
ID=71387242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921349537.3U Withdrawn - After Issue CN210930201U (en) | 2019-08-20 | 2019-08-20 | Multifunctional reading rack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210930201U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110419867A (en) * | 2019-08-20 | 2019-11-08 | 苏州好姿视矫正器材科技有限公司 | Multi-functional reading-rack |
-
2019
- 2019-08-20 CN CN201921349537.3U patent/CN210930201U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110419867A (en) * | 2019-08-20 | 2019-11-08 | 苏州好姿视矫正器材科技有限公司 | Multi-functional reading-rack |
| CN110419867B (en) * | 2019-08-20 | 2024-02-20 | 苏州好姿视矫正器材科技有限公司 | Multifunctional reading rack |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20200707 Effective date of abandoning: 20240220 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20200707 Effective date of abandoning: 20240220 |