CN111772346A - Desk capable of preventing myopia - Google Patents
Desk capable of preventing myopia Download PDFInfo
- Publication number
- CN111772346A CN111772346A CN202010812028.0A CN202010812028A CN111772346A CN 111772346 A CN111772346 A CN 111772346A CN 202010812028 A CN202010812028 A CN 202010812028A CN 111772346 A CN111772346 A CN 111772346A
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- China
- Prior art keywords
- rod
- block
- fixedly connected
- sliding
- moving
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- 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.)
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Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B41/00—School desks or tables
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B39/00—School forms; Benches or forms combined with desks
- A47B39/10—Devices for holding pupils upright, i.e. body supports
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B41/00—School desks or tables
- A47B41/02—Adjustable, inclinable, sliding or foldable desks tops
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B9/00—Tables with tops of variable height
- A47B9/14—Tables with tops of variable height with pins coacting with holes
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B97/00—Furniture or accessories for furniture, not provided for in other groups of this subclass
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B2200/00—General construction of tables or desks
- A47B2200/0035—Tables or desks with features relating to adjustability or folding
- A47B2200/004—Top adjustment
- A47B2200/0042—Height and inclination adjustable desktop, either separately or simultaneously
Abstract
The invention discloses a desk capable of preventing myopia, which comprises a connecting frame, wherein the connecting frame is movably connected with a desk plate through a movable shaft, the connecting frame is connected with the supporting plate through a supporting rod, the table plate is movably connected with the top of the sleeve through a first fixing block, a movable rod is arranged inside the sleeve, the bottom of the movable rod is movably connected with a second fixed block, the second fixing block is connected with the support plate, the top of the support plate is connected with the sliding rod through the first limiting mechanism, one end of the sliding rod, which is close to the movable rod, is fixedly connected with a sliding plate, the top of the sliding plate is connected with a first screw rod through an adjusting mechanism, the outer surface of the first screw rod is in threaded connection with a threaded sleeve, a second limiting mechanism is connected between the threaded sleeve and the first screw rod, the outer surface cover of thread bush has the connecting cylinder, the top fixedly connected with limiting plate of connecting cylinder. Has the advantages that: the desk has higher adaptability and diversity and can meet different requirements of students.
Description
Technical Field
The invention relates to the technical field of desks, in particular to a desk capable of preventing myopia.
Background
The myopia of children belongs to myopia, is one of ametropia, and has different characteristics from the myopia of adults. Myopia (nearsightedness) refers to a refractive state in which parallel rays of light pass through the dioptric system of the eye at a point after flexion and before the retina when the eye is in accommodative relaxation. The myopia of children is characterized by abnormal regulation, progressiveness and easy interference of multiple factors when the disease is in the childhood period.
The essential reason of the myopia of the teenagers in the prior art is that the teenagers cannot have a rest for a long time, the vision fatigue is generated for a long time, and the teenagers are finally suffered from myopia;
although the existing desk has the angle with the height adjusting function or the desktop changing function, on one hand, the angle of the desktop is changed, but the corners of the desktop can influence the study of students, on the other hand, the desk cannot ensure the myopia prevention function of the students when the angle of the desktop is changed, and therefore the desk with the myopia prevention function, which can be adjusted according to the actual state of the height of the students, is needed to meet the requirements of the students with different heights.
An effective solution to the problems in the related art has not been proposed yet.
Disclosure of Invention
The invention aims to provide a desk capable of preventing eyes from being nearsightedness, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a desk capable of preventing myopia of eyes comprises a connecting frame, wherein the connecting frame is movably connected with a desk plate through a movable shaft, the bottom of the connecting frame is fixedly connected with a supporting rod, the bottom of the supporting rod is fixedly connected with a supporting plate, the bottom of one side, away from the supporting rod, of the desk plate is fixedly connected with two first fixed blocks, the first fixed blocks are movably connected with the top of a sleeve, a movable rod is arranged inside the sleeve, the bottom of the movable rod is movably connected with a second fixed block, the second fixed blocks are connected with the supporting plate, sliding grooves are formed in two sides of the movable rod, sliding blocks are arranged inside the sliding grooves, the sliding blocks are fixedly connected with the bottom end of the inner wall of the sleeve, grooves are formed in the positions, close to the sliding blocks, of the sleeve, first connecting blocks are arranged inside the grooves, and one side of the, the other side of the first connecting block is fixedly connected with a connecting rod, the surface of the sliding block is provided with a first through hole, the first through hole extends to the sleeve and is communicated with the groove, the inner wall of the first through hole is fixedly connected with a first limiting ring, a first spring is connected between the first limiting ring and the first connecting block, the first spring is wound on the outer surface of the connecting rod, the surface of the movable rod is provided with a plurality of second through holes matched with the connecting rod, the top of the supporting plate is connected with the sliding rod through a first limiting mechanism, one end of the sliding rod, which is close to the movable rod, is fixedly connected with a sliding plate, the top of the sliding plate is connected with a first screw rod through an adjusting mechanism, the outer surface of the first screw rod is in threaded connection with a threaded sleeve, a second limiting mechanism is connected between the threaded sleeve and the first screw rod, the outer surface of the threaded sleeve is, a movable block is arranged inside the first fixed box, a fixed rod is fixedly connected to the middle of the movable block, one end of the fixed rod is positioned outside the first fixed box and fixedly connected with a third connecting block, a second spring is connected between the first fixed box and the movable block, the second spring is wound on the outer surface of the fixed rod, a third through hole is formed at the position, close to the fixed rod, of the connecting cylinder, a fourth through hole is formed at the position, close to the third through hole, of the threaded sleeve, the fourth through hole is matched with the three phases of the through hole, a fifth through hole is formed at the top of the threaded sleeve and positioned above the fourth through hole, the fifth through hole is matched with the fixed rod, a limiting plate is fixedly connected to the top of the connecting cylinder, a fixing mechanism is arranged at the position, close to the second fixed block, fixed cylinders are fixedly connected to the four corners of the bottom of the supporting, the bottom of the first moving rod is fixedly connected with a bottom block, the bottoms of the two sides of the supporting plate are provided with stabilizing rods, the stabilizing rods are fixedly connected with the first moving rod, the side wall of the fixed cylinder is in threaded connection with a connecting bolt, and one side, close to the connecting bolt, of the first moving rod is provided with a connecting groove.
Furthermore, the adjusting mechanism comprises supporting blocks, a second screw rod, a first moving block and a bearing, the supporting blocks are fixedly connected to two sides of the top of the sliding plate, the supporting blocks are movably connected with the second screw rod through the bearing, the first moving block is connected to the outer surface of the second screw rod in a threaded mode, and the bottom end of the first screw rod is fixedly connected with the first moving block.
Furthermore, the top of the sliding plate is provided with a first limiting groove, the bottom of the first moving block is fixedly connected with a first limiting block, and the first limiting block is located in the first limiting groove and matched with the first limiting groove.
Furthermore, one end of the second screw rod extends to the outer side of the supporting block and is fixedly connected with the rotating block.
Furthermore, the top of the limiting plate is fixedly connected with a rubber pad.
Furthermore, the fixing mechanism comprises a second fixing box, a second moving block, a third spring, a limiting frame, a second moving rod and a fixing groove, the second fixing box is fixedly connected to the top of the supporting plate, the inside of the second fixing box is connected with the second moving block through the third spring, the second moving block is fixedly connected to one side, away from the third spring, of the second moving block, the second moving rod is fixedly connected to ports at two ends of the second fixing box, the limiting frame is fixedly connected to the ports at two ends of the second fixing box, and the fixing groove matched with the second moving rod is formed in the inner side of.
Furthermore, an opening is formed in the top of the fixed box II, a first pushing block is arranged in the opening, the bottom of the first pushing block is fixedly connected with the moving block II, and a second pushing block is fixedly connected to the top of the first pushing block.
Furthermore, the first limiting mechanism comprises a second limiting groove and a second limiting block, the top of the supporting plate is close to the position of the sliding rod, the second limiting groove is formed in the position of the supporting plate, the second limiting block is arranged inside the second limiting groove, and the second limiting block is fixedly connected with the sliding rod.
Furthermore, the limiting mechanism II comprises a cavity, a third moving block, a third moving rod and a second limiting ring, the cavity is formed in the top of the first screw rod, the third moving block is arranged inside the cavity, the top of the third moving block is fixedly connected with the third moving rod, the top of the third moving rod is located on the outer side of the cavity and fixedly connected with the top end of the inside of the threaded sleeve, and the second limiting ring is fixedly connected to the inner wall of the top of the cavity.
Furthermore, the outer surface of the first moving rod is provided with a prompt line.
Compared with the prior art, the invention has the following beneficial effects:
(1) this desk not only has altitude mixture control's function to make its student that adapts to different heights, can carry out the regulation of angle to the table simultaneously, thereby can improve the comfort level of student's study, in addition, can carry out the myopia prevention operation to the student, head and desktop are close too when avoiding the student to study, reduce the probability of myopia, and the myopia prevention operation does not receive the influence of table angle modulation, thereby make this desk have higher adaptability and variety, can satisfy student's different demands.
(2) The adjusting mechanism can adjust the position of the limiting plate, so that the limiting plate can be located below the chin of a student, the sitting posture of the student is limited, the limiting plate can adapt to the position of the student, the first limiting groove and the first limiting block can limit the first moving block, the first moving block is prevented from rotating along with the second screw rod, the second screw rod is conveniently rotated by the rotating block, and the rubber pad can improve the comfort of the chin of the student when contacting with the limiting plate.
(3) The fixing mechanism can fix the sliding rod, so that the sliding rod cannot move on the supporting plate, the purpose of fixing the limiting plate is achieved, the first pushing block, the second pushing block and the second moving block can be conveniently moved through the matching of the first pushing block, the second pushing block and the opening, and the purpose of moving the second moving block is achieved.
(4) The limiting mechanism limits the pair of sliding rods, the sliding rods can slide on the supporting plate but cannot be separated from the supporting plate, the limiting mechanism limits the pair of threaded sleeves, the threaded sleeves are prevented from rotating and moving to separate from the first screw rod, the prompt wire plays a role in prompting, and the position of the connecting groove of the operator is prompted, so that the operator can conveniently connect and fix the connecting groove.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a desk capable of preventing myopia according to an embodiment of the invention;
FIG. 2 is a schematic view of a connection structure of a connection frame and a desk plate in a desk capable of preventing myopia according to an embodiment of the invention;
FIG. 3 is a schematic structural diagram of an adjusting mechanism in a desk capable of preventing myopia according to an embodiment of the invention;
FIG. 4 is a schematic structural diagram of a first screw, a threaded sleeve and a connecting cylinder in a desk capable of preventing myopia according to an embodiment of the invention;
FIG. 5 is an enlarged view at A in FIG. 4;
FIG. 6 is a schematic structural diagram of a second fixing box in the desk capable of preventing myopia according to the embodiment of the invention;
FIG. 7 is a schematic structural view of a skateboard in a desk for preventing myopia according to an embodiment of the present invention;
FIG. 8 is a schematic view showing a connection structure of a sleeve and a movable rod in a desk for preventing myopia according to an embodiment of the present invention;
fig. 9 is an enlarged view at B in fig. 8.
Reference numerals:
1. a connecting frame; 2. a movable shaft; 3. a table plate; 4. a support bar; 5. a support plate; 6. a first fixed block; 7. a sleeve; 8. a movable rod; 9. a second fixed block; 10. a chute; 11. a slider; 12. a groove; 13. a first connecting block; 14. a second connecting block; 15. a connecting rod; 16. a first through hole; 17. a first limiting ring; 18. a first spring; 19. a second through hole; 20. a slide bar; 21. a slide plate; 22. a first screw rod; 23. a threaded sleeve; 24. a connecting cylinder; 25. a first fixing box; 26. a movable block; 27. fixing the rod; 28. connecting blocks III; 29. a second spring; 30. a third through hole; 31. a fourth through hole; 32. a fifth through hole; 33. a limiting plate; 34. a fixed cylinder; 35. a first moving rod; 36. a bottom block; 37. a stabilizing rod; 38. a connecting bolt; 39. connecting grooves; 40. a support block; 41. a second screw; 42. moving a first block; 43. a bearing; 44. a first limiting groove; 45. a first limiting block; 46. rotating the block; 47. a rubber pad; 48. a second fixed box; 49. a second moving block; 50. a third spring; 51. a limiting frame; 52. a second moving rod; 53. fixing grooves; 54. an opening; 55. a first push block; 56. a second push block; 57. a second limiting groove; 58. a second limiting block; 59. a cavity; 60. moving blocks III; 61. a third moving rod; 62. a second limiting ring; 63. and prompting the line.
Detailed Description
The invention is further described with reference to the following drawings and detailed description:
the first embodiment is as follows:
referring to fig. 1-9, the desk capable of preventing myopia according to the embodiment of the invention comprises a connecting frame 1, wherein the connecting frame 1 is movably connected with a desk plate 3 through a movable shaft 2, the connecting frame 1 is similar to a U-shaped shape in design, a supporting rod 4 is fixedly connected to the bottom of the connecting frame 1, a supporting plate 5 is fixedly connected to the bottom of the supporting rod 4, two fixing blocks 6 are fixedly connected to the bottom of one side, away from the supporting rod 4, of the desk plate 3, the fixing blocks 6 are movably connected with the top of a sleeve 7, a movable rod 8 is arranged inside the sleeve 7, a fixing block two 9 is movably connected to the bottom of the movable rod 8, and the fixing block two 9 is connected with the supporting plate 5;
sliding grooves 10 are formed on two sides of the movable rod 8, sliding blocks 11 are arranged inside the sliding grooves 10, the sliding block 11 is fixedly connected with the bottom end of the inner wall of the sleeve 7, a groove 12 is arranged at the position of the sleeve 7 close to the sliding block 11, a first connecting block 13 is arranged inside the groove 12, a second connecting block 14 is fixedly connected to one side of the first connecting block 13, the other side of the first connecting block 13 is fixedly connected with a connecting rod 15, the surface of the sliding block 11 is provided with a first through hole 16, the first through hole 16 extends to the sleeve 7 and is communicated with the groove 12, the inner wall of the first through hole 16 is fixedly connected with a first limit ring 17, a first spring 18 is connected between the first limiting ring 17 and the first connecting block 13, the first spring 18 is wound on the outer surface of the connecting rod 15, the surface of the movable rod 8 is provided with a plurality of through holes 19 matched with the connecting rods 15;
the top of the supporting plate 5 is connected with a sliding rod 20 through a first limiting mechanism, one end of the sliding rod 20, which is close to the movable rod 8, is fixedly connected with a sliding plate 21, the top of the sliding plate 21 is connected with a first screw rod 22 through an adjusting mechanism, the outer surface of the first screw rod 22 is connected with a threaded sleeve 23, a second limiting mechanism is connected between the threaded sleeve 23 and the first screw rod 22, the outer surface of the threaded sleeve 23 is sleeved with a connecting cylinder 24, the bottom of the outer side of the connecting cylinder 24 is fixedly connected with a first fixed box 25, a movable block 26 is arranged inside the first fixed box 25, the middle of the movable block 26 is fixedly connected with a fixed rod 27, one end of the fixed rod 27 is positioned outside the first fixed box 25 and is fixedly connected with a third connecting block 28, a second spring 29 is connected between the first fixed box 25 and the movable block 26, and the second spring 29 is, a third through hole 30 is formed in the position, close to the fixing rod 27, of the connecting cylinder 24, a fourth through hole 31 is formed in the position, close to the third through hole 30, of the threaded sleeve 23, the fourth through hole 31 is matched with the third through hole 30, a fifth through hole 32 is formed in the top of the threaded sleeve 23 and above the fourth through hole 31, and the fifth through hole 32 is matched with the fixing rod 27;
the top of the connecting cylinder 24 is fixedly connected with a limiting plate 33, the top of the limiting plate 33 is fixedly connected with a rubber pad 47, the rubber pad 47 can improve the comfort when the student chin contacts the limiting plate 33, the supporting plate 5 is provided with a fixing mechanism near the two fixing blocks 9, the four corners of the bottom of the supporting plate 5 are fixedly connected with a fixing cylinder 34, a first moving rod 35 is arranged inside the fixing cylinder 34, the bottom of the first moving rod 35 is fixedly connected with a bottom block 36, the bottoms of the two sides of the supporting plate 5 are provided with stabilizing rods 37, the stabilizing rods 37 are fixedly connected with the first moving rod 35, the side wall of the fixing cylinder 34 is in threaded connection with a connecting bolt 38, one side of the first moving rod 35, which is near the connecting bolt 38, is provided with a connecting groove 39, the outer surface of the first moving rod 35 is provided with a prompt line 63, and the prompt line 63 plays, the operator is prompted to connect the position of the slot 39, thereby facilitating the operator to perform the connection fixing operation.
Example two:
referring to fig. 1-3, the adjusting mechanism includes supporting blocks 40, a second screw 41, a first moving block 42 and a bearing 43, the supporting blocks 40 are fixedly connected to two sides of the top of the sliding plate 21, the supporting blocks 40 are movably connected to the second screw 41 through the bearing 43, the first moving block 42 is connected to the outer surface of the second screw 41 through threads, the bottom end of the first screw 22 is fixedly connected to the first moving block 42, the top of the sliding plate 21 is provided with a first limiting groove 44, the bottom of the first moving block 42 is fixedly connected to a first limiting block 45, the first limiting block 45 is located in the first limiting groove 44 and matched with the first limiting groove 44, one end of the second screw 41 extends to the outer side of the supporting blocks 40 and is fixedly connected to a rotating block 46, and the adjusting mechanism can adjust the position of the limiting plate 33, so that the limiting plate 33 can be located under the chin of the student, the sitting posture of the student is limited, the limiting plate 33 can adapt to the position of the student, the first limiting groove 44 and the first limiting block 45 can limit the first moving block 42, the first moving block is prevented from rotating along with the second screw rod 41, and the second screw rod 41 is conveniently rotated by the rotating block 46.
Example three:
referring to fig. 1 and 6, the fixing mechanism includes a second fixing box 48, a second moving block 49, a third spring 50, a limiting frame 51, a second moving rod 52 and a fixing groove 53, the top of the supporting plate 5 is fixedly connected with the second fixing box 48, the inside of the second fixing box 48 is connected with the second moving block 49 through the third spring 50, one side of the second moving block 49 away from the third spring 50 is fixedly connected with the second moving rod 52, two end ports of the second fixing box 48 are fixedly connected with the limiting frame 51, the inner side of the sliding rod 20 is provided with the fixing groove 53 matched with the second moving rod 52, the top of the second fixing box 48 is provided with an opening 54, a first pushing block 55 is arranged in the opening 54, the bottom of the first pushing block 55 is fixedly connected with the second moving block 49, the top of the first pushing block 55 is fixedly connected with a second pushing block 56, and the fixing mechanism can fix the sliding rod 20, therefore, the sliding rod 20 cannot move on the supporting plate 5, and the purpose of fixing the limiting plate 33 is achieved, and the first pushing block 55, the second pushing block 56 and the opening 54 are matched to facilitate the moving operation of the second moving block 49, so that the purpose of moving the second moving rod 52 is achieved.
Example four:
referring to fig. 1, the first limiting mechanism includes a second limiting groove 57 and a second limiting block 58, the second limiting groove 57 is formed at the top of the supporting plate 5 and near the sliding rod 20, the second limiting block 58 is arranged inside the second limiting groove 57, the second limiting block 58 is fixedly connected with the sliding rod 20, and the limiting mechanism limits the sliding rod 20 so that the sliding rod 20 can slide on the supporting plate 5 but cannot be separated from the supporting plate 5.
Example five:
referring to fig. 3-4, the second limiting mechanism includes a cavity 59, a third moving block 60, a third moving rod 61 and a second limiting ring 62, the top of the first screw 22 is provided with the cavity 59, the third moving block 60 is arranged inside the cavity 59, the top of the third moving block 60 is fixedly connected with the third moving rod 61, the top of the third moving rod 61 is located outside the cavity 59 and is fixedly connected with the top end of the interior of the threaded sleeve 23, the inner wall of the top of the cavity 59 is fixedly connected with the second limiting ring 62, and the limiting mechanism limits the threaded sleeve 23 to prevent the threaded sleeve 23 from rotating and moving away from the first screw 22.
For the convenience of understanding the technical solutions of the present invention, the following detailed description will be made on the working principle or the operation mode of the present invention in the practical process.
In practical application, when the height of the desk is not satisfied, the connecting bolt 38 can be rotated to separate the connecting bolt 38 from the connecting groove 39, thereby moving the first moving rod 35, knowing the position of the connecting groove 39 through the indicating line 63, rotating the connecting bolt 38 after adjusting the height, the first moving rod 35 and the fixed cylinder 34 are fixed, when the student learns, the first pushing block 55 is driven by the second pushing block 56, so that the second moving block 49 moves inwards, the third spring 50 is in a compressed state, the second moving rod 52 does not influence the movement of the sliding plate 21, and then the sliding plate 21 moves outwards, the sliding rod 20 moves along with the sliding plate 21, when the slide bar 20 moves to the second fixed box 48, the second movable rod 52 pushes the lower port into the fixed slot 53 under the action of the third spring 50, so that the slide bar 20 is fixed and the slide plate 21 cannot slide;
when the limit plate 33 is located outside the table 3, the third connecting block 28 is initially moved outward to separate the fixing rod 27 from the fourth through hole 31, and the connecting cylinder 24 can be moved upward, and when the fixing rod 27 moves to the fifth through hole 32, the port of the fixing rod 27 enters the through hole five 32 under the pushing of the spring two 29, the connecting cylinder 24 cannot move continuously, then the connecting cylinder 24 is rotated, the threaded sleeve 23 rotates along with the connecting cylinder 24, the threaded sleeve 23 and the connecting cylinder 24 rotate on the screw rod one 22, the height of the limit plate 33 is adjusted to match the height of the limit plate 33 with that of the student, then the rotating block 46 is rotated to rotate the second screw rod 41, the first moving block 42 is driven, the limiting plate 33 moves along with the first moving block 42, the limiting plate 33 is located at a proper position, and the limiting plate 33 limits the chin of the student at the moment, so that the student keeps a standard sitting posture;
when the angle of needs to table 3 is adjusted, can outwards remove two connecting blocks 14, and connecting block 13 removes along with two connecting blocks 14 together, and connecting rod 15 breaks away from two through-holes 19, and the movable rod 8 can remove in sleeve 7 this moment, can rotate the operation to table 3 this moment, and after 3 angular adjustment of table was good, can loosen two connecting blocks 14, make connecting rod 15 enter into two through-holes 19 in to fix the current angle of table 3.
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 (5)
1. The desk capable of preventing the myopia of the eyes is characterized by comprising a connecting frame (1), wherein the connecting frame (1) is movably connected with a desk plate (3) through a movable shaft (2).
2. The desk capable of preventing the myopia of the eyes as claimed in claim 1, wherein the bottom of the connecting frame (1) is fixedly connected with a supporting rod (4), the bottom of the supporting rod (4) is fixedly connected with a supporting plate (5), the bottom of one side of the desk plate (3) far away from the supporting rod (4) is fixedly connected with two first fixed blocks (6), the first fixed blocks (6) are movably connected with the top of a sleeve (7), a movable rod (8) is arranged inside the sleeve (7), the bottom of the movable rod (8) is movably connected with a second fixed block (9), the second fixed blocks (9) are connected with the supporting plate (5), sliding grooves (10) are formed in two sides of the movable rod (8), sliding blocks (11) are arranged inside the sliding grooves (10), and the sliding blocks (11) are fixedly connected with the bottom end of the inner wall of the sleeve (7), the sleeve (7) is provided with a groove (12) at a position close to the sliding block (11), a first connecting block (13) is arranged inside the groove (12), a second connecting block (14) is fixedly connected to one side of the first connecting block (13), a connecting rod (15) is fixedly connected to the other side of the first connecting block (13), a first through hole (16) is formed in the surface of the sliding block (11), the first through hole (16) extends to the sleeve (7) and is communicated with the groove (12), a first limiting ring (17) is fixedly connected to the inner wall of the first through hole (16), a first spring (18) is connected between the first limiting ring (17) and the first connecting block (13), the first spring (18) is wound on the outer surface of the connecting rod (15), and a plurality of second through holes (19) matched with the connecting rod (15) are formed in the surface of the movable rod (8), the top of the supporting plate (5) is connected with a sliding rod (20) through a first limiting mechanism, the sliding rod (20) is close to one end of a movable rod (8) and is fixedly connected with a sliding plate (21), the top of the sliding plate (21) is connected with a first screw rod (22) through an adjusting mechanism, the outer surface of the first screw rod (22) is in threaded connection with a threaded sleeve (23), a second limiting mechanism is connected between the threaded sleeve (23) and the first screw rod (22), the outer surface of the threaded sleeve (23) is sleeved with a connecting cylinder (24), the outer bottom of the connecting cylinder (24) is fixedly connected with a first fixed box (25), a movable block (26) is arranged inside the first fixed box (25), a fixed rod (27) is fixedly connected to the middle of the movable block (26), one end of the fixed rod (27) is located on the outer side of the first fixed box (25) and is fixedly connected with a third connecting block (, the fixing box I (25) and the movable block (26) are connected with a spring II (29), the spring II (29) is wound on the outer surface of the fixed rod (27), the connecting cylinder (24) is close to the fixed rod (27) and is provided with a through hole III (30), the thread bush (23) is close to the through hole III (30) and is provided with a through hole IV (31), the through hole IV (31) is matched with the through hole III (30), the top of the thread bush (23) is positioned above the through hole IV (31) and is provided with a through hole V (32), the through hole V (32) is matched with the fixed rod (27), the top of the connecting cylinder (24) is fixedly connected with a limiting plate (33), the supporting plate (5) is close to the fixed block II (9) and is provided with a fixing mechanism, and the bottom four corners of the supporting plate (5) are fixedly connected with a fixing cylinder (34), a first moving rod (35) is arranged inside the fixed cylinder (34), the bottom of the first moving rod (35) is fixedly connected with a bottom block (36), the bottoms of the two sides of the supporting plate (5) are provided with stabilizing rods (37), the stabilizing rods (37) are fixedly connected with the first moving rod (35), the side wall of the fixed cylinder (34) is in threaded connection with a connecting bolt (38), and one side, close to the connecting bolt (38), of the first moving rod (35) is provided with a connecting groove (39); the adjusting mechanism comprises supporting blocks (40), a second screw rod (41), a first moving block (42) and a bearing (43), the supporting blocks (40) are fixedly connected to two sides of the top of the sliding plate (21), the supporting blocks (40) are movably connected with the second screw rod (41) through the bearing (43), the first moving block (42) is connected to the outer surface of the second screw rod (41) in a threaded mode, and the bottom end of the first screw rod (22) is fixedly connected with the first moving block (42); the fixing mechanism comprises a second fixing box (48), a second moving block (49), a third spring (50), a limiting frame (51), a second moving rod (52) and a fixing groove (53), the second fixing box (48) is fixedly connected to the top of the supporting plate (5), the inside of the second fixing box (48) is connected with the second moving block (49) through the third spring (50), the second moving block (49) is fixedly connected with the second moving rod (52) on one side far away from the third spring (50), the limiting frames (51) are fixedly connected to ports at two ends of the second fixing box (48), and the fixing groove (53) matched with the second moving rod (52) is formed in the inner side of the sliding rod (20).
3. The desk capable of preventing the myopia of the eyes as claimed in claim 2, wherein a first limit groove (44) is formed in the top of the sliding plate (21), a first limit block (45) is fixedly connected to the bottom of the first moving block (42), and the first limit block (45) is located in the first limit groove (44) and matched with the first limit groove (44).
4. The desk capable of preventing myopia of eyes of claim 3, wherein one end of the second screw rod (41) extends to the outer side of the supporting block (40) and is fixedly connected with the rotating block (46).
5. The desk capable of preventing the myopia of the eyes as claimed in claim 2, wherein a rubber pad (47) is fixedly connected to the top of the limiting plate (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010812028.0A CN111772346A (en) | 2020-08-13 | 2020-08-13 | Desk capable of preventing myopia |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010812028.0A CN111772346A (en) | 2020-08-13 | 2020-08-13 | Desk capable of preventing myopia |
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| Publication Number | Publication Date |
|---|---|
| CN111772346A true CN111772346A (en) | 2020-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010812028.0A Pending CN111772346A (en) | 2020-08-13 | 2020-08-13 | Desk capable of preventing myopia |
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