阅读说明：本技术 一种具有防止眼睛近视功能的课桌 (Desk with prevent myopia function of eyes ) 是由 徐心瑶 张语珊 张思涵 赵聪睿 于 2020-08-13 设计创作，主要内容包括：本发明公开了一种具有防止眼睛近视功能的课桌,包括连接架,连接架通过活动轴与桌板活动连接,连接架通过支撑杆与支撑板连接,桌板通过固定块一与套筒的顶部活动连接,套筒的内部设有活动杆,活动杆的底部活动连接有固定块二,固定块二与支撑板连接,支撑板的顶部通过限位机构一与滑杆连接,滑杆靠近活动杆的一端固定连接有滑板,限位机构一包括限位槽二和限位块二,移动块三的顶部与移动杆三固定连接,移动杆三的顶部位于空腔外侧且与螺纹套的内部顶端固定连接,空腔顶部内壁固定连接有限位圈二。有益效果：使该课桌具有较高的应变性和多样性,能够满足学生的不同需求。(The invention discloses a desk with a function of preventing myopia of eyes, 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 a supporting plate through a supporting rod, the desk plate is movably connected with the top of a sleeve through a first fixing block, a movable rod is arranged in the sleeve, the bottom of the movable rod is movably connected with a second fixing block, the second fixing block is connected with the supporting plate, the top of the supporting plate is connected with a slide rod through a first limiting mechanism, one end, close to the movable rod, of the slide rod is fixedly connected with a sliding plate, the first limiting mechanism comprises a second limiting groove and a second limiting block, the top of a third moving block is fixedly connected with a third moving rod, the top of the third moving rod is positioned outside a cavity and is fixedly connected with the top end. Has the advantages that: the desk has higher adaptability and diversity and can meet different requirements of students.)

1. A desk with the function of preventing myopia of 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);

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), and the bottom of one side, away from the supporting rod (4), of the table plate (3) is fixedly connected with two first fixing blocks (6); the first fixing block (6) is movably connected with the top of the 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 fixing block (9), and the second fixing block (9) is connected with the supporting plate (5); sliding grooves (10) are formed in two sides of the movable rod (8), a sliding block (11) is arranged inside each sliding groove (10), the sliding block (11) is fixedly connected with the bottom end of the inner wall of the sleeve (7), and a groove (12) is formed in the position, close to the sliding block (11), of the sleeve (7); 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), and 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), and 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 II (19) matched with the connecting rods (15), and the top of the supporting plate (5) is connected with the sliding rod (20) through a limiting mechanism I; one end, close to the movable rod (8), of the sliding rod (20) 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, a threaded sleeve (23) is connected to the outer surface of the first screw rod (22) in a threaded mode, and a second limiting mechanism is connected between the threaded sleeve (23) and the first screw rod (22); a connecting cylinder (24) is sleeved on the outer surface of the threaded sleeve (23), a first fixed box (25) is fixedly connected to the bottom of the outer side of the connecting cylinder (24), 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), and 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 (28); a second spring (29) is connected between the first fixed box (25) and the movable block (26), the second spring (29) is wound on the outer surface of the fixed rod (27), a third through hole (30) is formed in the position, close to the fixed 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), and 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), the fifth through hole (32) is matched with the fixing rod (27), a limiting plate (33) is fixedly connected to the top of the connecting cylinder (24), and a fixing mechanism is arranged on the supporting plate (5) close to the second fixing block (9); the bottom four corners of the supporting plate (5) are fixedly connected with fixed cylinders (34), moving rods I (35) are arranged inside the fixed cylinders (34), bottom parts of the moving rods I (35) are fixedly connected with bottom blocks (36), the bottoms of two sides of the supporting plate (5) are provided with stabilizing rods (37), the stabilizing rods (37) are fixedly connected with the moving rods I (35), the side wall of the fixed cylinders (34) is in threaded connection with connecting bolts (38), and one side, close to the connecting bolts (38), of each moving rod I (35) is provided with a connecting groove (39);

the first limiting mechanism comprises a second limiting groove (57) and a second limiting block (58), the second limiting groove (57) is formed in the top of the supporting plate (5) and is close to the sliding rod (20), the second limiting block (58) is arranged inside the second limiting groove (57), and the second limiting block (58) is fixedly connected with the sliding rod (20);

the second limiting mechanism comprises a cavity (59), a third moving block (60), a third moving block (61) and a second limiting ring (62), the cavity (59) is formed in the top of the first screw rod (22), 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 block (61), the top of the third moving block (61) is located on the outer side of the cavity (59) and fixedly connected with the top end of the inner portion of the threaded sleeve (23), and the second limiting ring (62) is fixedly connected to the inner wall of the top of the cavity (59).

2. The desk with the function of preventing the myopia of the eyes as claimed in claim 1, wherein 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).

3. The desk with the function of preventing the myopia of the eyes as claimed in claim 1, wherein 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 second fixing box (48) is connected to the second moving block (49) through the third spring (50), the second moving rod (52) is fixedly connected to one side, away from the third spring (50), of the second moving block (49), the limiting frame (51) is 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).

4. The desk with the function of preventing the myopia of the eyes as claimed in claim 1, wherein an opening (54) is formed in the top of the second fixed box (48), 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), and a second pushing block (56) is fixedly connected to the top of the first pushing block (55).

5. The desk with the function of preventing the myopia of the eyes as claimed in claim 1, wherein a first limiting groove (44) is formed in the top of the sliding plate (21), a first limiting block (45) is fixedly connected to the bottom of the first moving block (42), and the first limiting block (45) is located in the first limiting groove (44) and matched with the first limiting groove (44).

6. The desk with the function of preventing the myopia of the eyes as claimed in claim 1, 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).

Technical Field

The invention relates to the technical field of desks, in particular to a desk with a function of preventing myopia of eyes.

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.

Disclosure of Invention

The invention aims to provide a desk with a function of preventing myopia of eyes, 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 with the function of preventing myopia of 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);

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), and the bottom of one side, away from the supporting rod (4), of the table plate (3) is fixedly connected with two first fixing blocks (6); the first fixing block (6) is movably connected with the top of the 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 fixing block (9), and the second fixing block (9) is connected with the supporting plate (5); sliding grooves (10) are formed in two sides of the movable rod (8), a sliding block (11) is arranged inside each sliding groove (10), the sliding block (11) is fixedly connected with the bottom end of the inner wall of the sleeve (7), and a groove (12) is formed in the position, close to the sliding block (11), of the sleeve (7); 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), and 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), and 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 II (19) matched with the connecting rods (15), and the top of the supporting plate (5) is connected with the sliding rod (20) through a limiting mechanism I; one end, close to the movable rod (8), of the sliding rod (20) 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, a threaded sleeve (23) is connected to the outer surface of the first screw rod (22) in a threaded mode, and a second limiting mechanism is connected between the threaded sleeve (23) and the first screw rod (22); a connecting cylinder (24) is sleeved on the outer surface of the threaded sleeve (23), a first fixed box (25) is fixedly connected to the bottom of the outer side of the connecting cylinder (24), 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), and 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 (28); a second spring (29) is connected between the first fixed box (25) and the movable block (26), the second spring (29) is wound on the outer surface of the fixed rod (27), a third through hole (30) is formed in the position, close to the fixed 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), and 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), the fifth through hole (32) is matched with the fixing rod (27), a limiting plate (33) is fixedly connected to the top of the connecting cylinder (24), and a fixing mechanism is arranged on the supporting plate (5) close to the second fixing block (9); the bottom four corners of the supporting plate (5) are fixedly connected with fixed cylinders (34), moving rods I (35) are arranged inside the fixed cylinders (34), bottom parts of the moving rods I (35) are fixedly connected with bottom blocks (36), the bottoms of two sides of the supporting plate (5) are provided with stabilizing rods (37), the stabilizing rods (37) are fixedly connected with the moving rods I (35), the side wall of the fixed cylinders (34) is in threaded connection with connecting bolts (38), and one side, close to the connecting bolts (38), of each moving rod I (35) is provided with a connecting groove (39); the first limiting mechanism comprises a second limiting groove (57) and a second limiting block (58), the second limiting groove (57) is formed in the top of the supporting plate (5) and is close to the sliding rod (20), the second limiting block (58) is arranged inside the second limiting groove (57), and the second limiting block (58) is fixedly connected with the sliding rod (20);

the second limiting mechanism comprises a cavity (59), a third moving block (60), a third moving block (61) and a second limiting ring (62), the cavity (59) is formed in the top of the first screw rod (22), 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 block (61), the top of the third moving block (61) is located on the outer side of the cavity (59) and fixedly connected with the top end of the inner portion of the threaded sleeve (23), and the second limiting ring (62) is fixedly connected to the inner wall of the top of the cavity (59).

In the scheme, 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).

In this case, 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 second fixing box (48) is fixedly connected to the top of the supporting plate (5), the second fixing box (48) is connected to the second moving block (49) through the third spring (50), the second moving rod (52) is fixedly connected to one side, away from the third spring (50), of the second moving block (49), the limiting frame (51) is 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).

In the scheme, an opening (54) is formed in the top of the second fixed box (48), 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), and a second pushing block (56) is fixedly connected to the top of the first pushing block (55).

In the scheme, a first limiting groove (44) is formed in the top of the sliding plate (21), a first limiting block (45) is fixedly connected to the bottom of the first moving block (42), and the first limiting block (45) is located in the first limiting groove (44) and matched with the first limiting groove (44).

In the scheme, 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).

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 with an eye myopia prevention function 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 with an eye myopia prevention function according to an embodiment of the invention;

FIG. 3 is a schematic structural diagram of an adjusting mechanism in a desk with a function of preventing myopia of eyes 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 with a function of preventing myopia of eyes 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 with the function of preventing myopia according to the embodiment of the invention;

FIG. 7 is a schematic structural diagram of a skateboard in a desk with a function of preventing myopia of eyes according to an embodiment of the invention;

FIG. 8 is a schematic view of a connecting structure of a sleeve and a movable rod of a desk with a function of preventing myopia according to an embodiment of the 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: