Folding desk convenient for noon break

Abstract

The folding desk comprises a desk body and a chair, the desk body is composed of a desk plate, a storage basket, first desk legs, second desk legs, third desk legs and a base, the storage basket is connected to the middle of the bottom end of the desk plate, the first desk legs are connected to the two sides of the bottom end of the desk plate, and lifting adjusting mechanisms are arranged between the first desk legs and the second desk legs; according to the invention, through the arrangement of the lifting adjusting mechanism, the lifting effect of the desk is realized, so that the height of the desk is reduced, the legs of a student are supported for noon break, the original space is reserved, the student can conveniently place the legs on the desk, and the desk is convenient to use. Through the arrangement of the folding mechanism, the folding and overturning effects of the tablet chair are realized, so that the included angle between the chair backrest and the chair seat is enlarged, a student can lie down conveniently during the noon break, and the problem that the student feels uncomfortable due to the sleeping posture after the noon break in the prior art is solved.

Description

Technical Field

[0001] The invention relates to the technical field of desks, in particular to a foldable desk convenient for taking a lunch break. Background Art

[0002] The desks used by students, starting from the earliest square tables in classrooms, should be unified as desks in schools.

[0003] Students usually sit on chairs and bend their bodies over the desks to take a nap. As existing desks cannot be adjusted, maintaining a bent sleeping posture for a long time and not moving the legs for a long time can easily lead to discomfort such as numbness in the legs after the nap. Even though there are already elevating desks and foldable chairs on the market, since the adjustments of the two are independent of each other, it takes relatively much time to adjust before and after the nap, which is inconvenient to use. Therefore, a foldable desk that is convenient for naps is needed to meet the needs. Summary of the invention

[0004] The object of the present invention is to provide a foldable desk which is convenient for taking a lunch break, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a foldable desk convenient for lunch break, comprising a desk and a chair, the desk consisting of a table top, a storage basket, a first table leg, a second table leg, a third table leg and a base, the storage basket is connected to the middle part of the bottom end of the table top, the first table leg is connected to both sides of the bottom end of the table top, a lifting and lowering adjustment mechanism is arranged between the first table leg and the second table leg, the second table leg is slidably connected to the outer wall of the third table leg, the third table leg is connected to the top of the base, a linkage mechanism is arranged between the second table leg and the base, the chair consists of a seat, a first chair leg, a second chair leg and a chair back, the first chair leg is connected to the base, the chair back is hinged to one end of the seat, a folding mechanism is arranged between the second chair leg and the chair back, and the folding mechanism is transmission-connected to the linkage mechanism.

[0006] Preferably, the lifting and lowering adjustment mechanism consists of an ear plate, a handwheel, a worm, a worm wheel, and a first screw. The ear plate is connected to one side of the first table leg, the worm is rotatably connected to the ear plate, the handwheel is connected to the worm, the worm wheel is rotatably connected between the first table leg and the second table leg and meshes with the worm, the first screw is connected to the bottom end of the worm wheel, passes through the interior of the second table leg, and is threadedly connected to the inside of the third table leg.

[0007] Preferably, the linkage mechanism consists of a first connecting member, a first connecting rod, a second connecting rod, a first slider, a second slider, a first rack, a second rack, a gear, a second screw and an adjusting block. The first connecting members are respectively connected to the inner sides of the two second table legs, the first connecting rod and the second connecting rod are respectively rotatably connected in the corresponding first connecting member, the first slider and the second slider are symmetrical to each other and are both slidably connected in the top end of the base, the first connecting rod is rotatably connected to the first slider, the second connecting rod is rotatably connected to the second slider, the gear is rotatably connected in the top end of the base, the first rack and the second rack are symmetrically staggered and arranged, and are respectively meshed on both sides of the gear, the first rack is connected to one end of the first slider, the second rack is connected to one end of the second slider, the second screw is connected to the gear, and the adjusting block is threadedly connected to the second screw.

[0008] Preferably, the folding mechanism consists of a second connecting member, a corner connecting rod, a fixed shaft and a third connecting member, the second connecting member is connected to one end of the adjusting block, one end of the corner connecting rod is rotatably connected in the second connecting member, the third connecting member is connected to the back of the chair back, the other end of the corner connecting rod is rotatably connected in the third connecting member, the fixed shaft is connected between the two second chair legs, a straight slot is opened on the rod body at the corner of the corner connecting rod facing the connection with the third connecting member, and the fixed shaft is located in the straight slot.

[0009] Preferably, a connecting shaft is connected to the top end of the worm wheel, and the cross-section of the connecting shaft is T-shaped. The connecting shaft is rotatably connected to the bottom end of the first table leg. A connecting ring is connected to the bottom end of the worm wheel, and the single-sided cross-section of the connecting ring is L-shaped. The connecting ring is rotatably connected to the top end of the second table leg.

[0010] Preferably, a slide groove is provided on the base, the cross section of the slide groove is in an inverted T shape, and the first sliding block and the second sliding block are both slidably fitted in the slide groove.

[0011] Preferably, a positioning shaft is provided on the bottom end of the slide groove, and the gear is rotatably connected to the outer wall of the positioning shaft.

[0012] Preferably, the second sliding block is provided with a first plugging hole, the first rack can be plugged into the first plugging hole, and the first sliding block is provided with a second plugging hole, the second rack can be plugged into the second plugging hole.

[0013] Preferably, a cover body is provided on the base, one side of the cover body is open, the cover body is connected to the periphery of the second screw rod, and the adjustment block is slidably connected in the cover body.

[0014] The beneficial effects of the present invention are: The present invention provides a lifting and lowering mechanism to enable the desk to achieve a lifting effect, thereby lowering the height of the desk to provide leg support for students during their lunch break, while retaining the original space and making it convenient for students to place their legs on the desk. The folding mechanism allows the chair to achieve a folding and flipping effect, thereby increasing the angle between the chair back and the seat, making it convenient for students to lie down during their lunch break, and avoiding the discomfort caused by students' sleeping posture after a lunch break in the prior art.

[0015] In the present invention, through the cooperation between the lifting adjustment mechanism, the linkage mechanism and the folding mechanism, the linkage mechanism can achieve a linkage effect while the desk is adjusted in height, thereby driving the folding mechanism to achieve a folding effect on the chair. Compared with the prior art, the setting of the linkage mechanism can synchronize the adjustment between the desk and the chair, saving adjustment time and making the operation more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the structure of a foldable desk for lunch break proposed by the present invention; Figure 2 A schematic diagram of the structure of a foldable desk for lunch break proposed by the present invention; Figure 3 This is a schematic diagram of the cross-sectional structure of a worm gear of a foldable desk for lunch break proposed by the present invention, viewed from above; Figure 4 A schematic diagram of the cross-sectional structure of a worm gear of a foldable desk for lunch break proposed by the present invention; Figure 5 A schematic diagram of the linkage mechanism structure of a foldable desk for lunch break proposed by the present invention; Figure 6 This is a schematic diagram of the front cross-sectional structure of the base of a foldable desk for lunch break proposed by the present invention; Figure 7 A schematic diagram of the structure of an adjustment mechanism and a chair of a foldable desk convenient for lunch break proposed by the present invention; Figure 8 The present invention provides a schematic diagram of the cross-sectional structure of the base of a foldable desk that is convenient for lunch breaks.

[0017] In the figure: 1. Desk; 11. Table top; 12. Storage basket; 13. First table leg; 14. Second table leg; 15. Third table leg; 16. Base; 2. Classroom chair; 21. Seat; 22. First chair leg; 23. Second chair leg; 24. Chair back; 3. Lifting and lowering adjustment mechanism; 31. Ear plate; 32. Hand wheel; 33. Worm; 34. Worm wheel; 35. First screw; 36. Connecting shaft; 37. Connecting ring; 4. linkage mechanism; 41. first connecting member; 42. first connecting rod; 43. second connecting rod; 44. first slider; 45. second slider; 46. first rack; 47. second rack; 48. gear; 49. second screw; 410. adjustment block; 411. slideway; 412. positioning shaft; 413. first plug hole; 414. second plug hole; 415. cover; 5. Folding mechanism; 51. Second connecting member; 52. Corner connecting rod; 53. Fixed axis; 54. Third connecting member; 55. Straight slot. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] Reference Figure 1-8 A foldable desk convenient for lunch break, comprising a desk 1 and a chair 2, the desk 1 consisting of a table board 11, a storage basket 12, a first table leg 13, a second table leg 14, a third table leg 15 and a base 16, the storage basket 12 is connected to the middle of the bottom end of the table board 11, the first table leg 13 is connected to both sides of the bottom end of the table board 11, a lifting adjustment mechanism 3 is arranged between the first table leg 13 and the second table leg 14, the second table leg 14 is slidably connected to the outer wall of the third table leg 15, the third table leg 15 is connected to the top of the base 16, a linkage mechanism 4 is arranged between the second table leg 14 and the base 16, the chair 2 consists of a seat 21, a first chair leg 22, a second chair leg 23 and a chair back 24, the first chair leg 22 is connected to the base 16, the chair back 24 is hinged on one end of the seat 21, a folding mechanism 5 is arranged between the second chair leg 23 and the chair back 24, and the folding mechanism 5 is transmission-connected to the linkage mechanism 4.

[0020] By setting the lifting and adjusting mechanism 3, the desk 1 can achieve a lifting effect, thereby lowering the height of the desk 1 to provide leg support for students during lunch break, while retaining the original space, it is convenient for students to place their legs on the desk 1. By setting the folding mechanism 5, the chair 2 can achieve a folding and flipping effect, thereby increasing the angle between the chair back 24 and the seat 21, making it convenient for students to lie down during lunch break, avoiding the discomfort problem of students after lunch break due to sleeping posture in the prior art. Through the cooperation between the lifting and adjusting mechanism 3, the linkage mechanism 4 and the folding mechanism 5, the linkage mechanism 4 can achieve a linkage effect while the desk 1 is adjusting its height, thereby driving the folding mechanism 5 to achieve a folding effect on the chair 2. Compared with the prior art, the setting of the linkage mechanism 4 synchronizes the adjustment between the desk 1 and the chair 2, saving adjustment time and making the operation more convenient.

[0021] Reference Figure 2-4In this embodiment, the lifting and lowering adjustment mechanism 3 is composed of an ear plate 31, a hand wheel 32, a worm 33, a worm wheel 34, and a first screw 35. The ear plate 31 is connected to one side of the first table leg 13, the worm 33 is rotatably connected to the ear plate 31, the hand wheel 32 is connected to the worm 33, the worm wheel 34 is rotatably connected between the first table leg 13 and the second table leg 14, and is meshed with the worm 33. The first screw 35 is connected to the bottom end of the worm wheel 34, and passes through the inside of the second table leg 14 and is threadedly connected to the inside of the third table leg 15.

[0022] Reference Figure 5-6 In this embodiment, the linkage mechanism 4 is composed of a first connecting member 41, a first connecting rod 42, a second connecting rod 43, a first slider 44, a second slider 45, a first rack 46, a second rack 47, a gear 48, a second screw 49 and an adjusting block 410. The first connecting member 41 is respectively connected to the inner side of the two second table legs 14, the first connecting rod 42 and the second connecting rod 43 are respectively rotatably connected in the corresponding first connecting member 41, and the first slider 44 and the second slider 45 are symmetrical to each other and are both slidably connected to the base 16. In the top end, the first connecting rod 42 is rotatably connected to the first slider 44, the second connecting rod 43 is rotatably connected to the second slider 45, the gear 48 is rotatably connected in the top end of the base 16, the first rack 46 and the second rack 47 are symmetrically arranged and staggered with each other, and are respectively engaged on both sides of the gear 48, the first rack 46 is connected to one end of the first slider 44, the second rack 47 is connected to one end of the second slider 45, the second screw 49 is connected to the gear 48, and the adjustment block 410 is threadedly connected to the second screw 49.

[0023] Reference Figure 7-8 In this embodiment, the folding mechanism 5 is composed of a second connecting member 51, a corner connecting rod 52, a fixed shaft 53 and a third connecting member 54. The second connecting member 51 is connected to one end of the adjusting block 410, one end of the corner connecting rod 52 is rotatably connected to the second connecting member 51, the third connecting member 54 is connected to the back of the chair back 24, the other end of the corner connecting rod 52 is rotatably connected to the third connecting member 54, the fixed shaft 53 is connected between the two second chair legs 23, and a straight slot 55 is opened on the rod body at the corner of the corner connecting rod 52 connected to the third connecting member 54, and the fixed shaft 53 is located in the straight slot 55.

[0024] Before lunch break, the hand wheel 32 is turned to rotate the worm 33, and the worm 33 is meshed with the worm wheel 34, so that the worm wheel 34 drives the first screw 35 to rotate, and the first screw 35 is screwed into the third table leg 15, so that the length of the second table leg 14 and the third table leg 15 is gradually reduced, so that the horizontal height of the table top 11 gradually decreases. Since the second table leg 14 is in a downward trend, under the cooperation between the first connecting member 41, the first connecting rod 42 and the second connecting rod 43, the first slider 44 and the second slider 45 move synchronously towards each other, and respectively drive the first rack 46 and the second rack 47 to move, so that the gear 48 drives the second screw 49 to rotate, thereby driving the horizontal height of the adjustment block 410 to rise. 1 is connected as a whole. When the adjustment block 410 rises, the corner connecting rod 52 is driven to form a movable lever movement on the fixed shaft 53 through the connection of the second connecting member 51, so that under the connection of the third connecting member 54, the chair back 24 forms a downward folding and flipping movement on one end of the seat 21. When the height of the table top 11 drops to the required height, the flipping angle of the chair back 24 is adjusted synchronously. The student sits on the seat 21 with his back against the chair back 24 with a certain inclination angle and his legs can be placed on the table top 11. The self-locking property between the worm 33 and the worm wheel 34 ensures the stability of the overall structure. After lunch break, the hand wheel 32 can be rotated in the reverse direction to increase the height of the table top 11 and fold and rotate the chair back to achieve a recovery effect.

[0025] Reference Figure 4 In this embodiment, a connecting shaft 36 is connected to the top of the worm gear 34, and the cross section of the connecting shaft 36 is T-shaped. The connecting shaft 36 is rotatably connected to the bottom end of the first table leg 13. A connecting ring 37 is connected to the bottom end of the worm gear 34, and the single-sided cross section of the connecting ring 37 is L-shaped. The connecting ring 37 is rotatably connected to the top of the second table leg 14. The cooperation between the connecting shaft 36 and the connecting ring 37 ensures the overall effect of the connection between the worm gear 34 and the first table leg 13 and the second table leg 14, and realizes the independence of the rotation of the worm gear 34.

[0026] Reference Figure 6 In this embodiment, a slide groove 411 is provided on the base 16, and the cross-section of the slide groove 411 is an inverted T-shape. The first slider 44 and the second slider 45 are both slidably adapted in the slide groove 411, providing a unified movement guide for the relative movement of the first slider 44 and the second slider 45, and preventing the first slider 44 and the second slider 45 from being ejected and separated from the base 16 during the movement.

[0027] Reference Figure 6 In this embodiment, a positioning shaft 412 is provided on the bottom end of the slide groove 411, and the gear 48 is rotatably connected to the outer wall of the positioning shaft 412, providing a positioning effect for the rotation of the gear 48 and ensuring the stability of the engagement between the gear 48 and the first rack 46 and the second rack 47.

[0028] Reference Figure 5 In this embodiment, a first plug hole 413 is provided on the second slider 45, and the first rack 46 can be inserted into the first plug hole 413. A second plug hole 414 is provided on the first slider 44, and the second rack 47 can be inserted into the second plug hole 414, which effectively increases the range of the minimum distance between the first slider 44 and the second slider 45 after they are close to each other, and prevents the problem of the slider movement being blocked due to contact between the unconnected rack and the slider.

[0029] Reference Figure 6 In this embodiment, a cover body 415 is provided on the base 16, and one side of the cover body 415 is open. The cover body 415 is connected to the outer periphery of the second screw rod 49, and the adjustment block 410 is slidably connected in the cover body 415. The cover body 415 provides a vertical movement guide for the adjustment block 410 and protects the second screw rod 49 to prevent students from being injured due to leg collision during class.

[0030] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A foldable desk for lunch break, comprising a desk (1) and a chair (2), characterized in that: The desk (1) comprises a table top (11), a storage basket (12), a first table leg (13), a second table leg (14), a third table leg (15) and a base (16); the storage basket (12) is connected to the middle of the bottom end of the table top (11); the first table leg (13) is connected to both sides of the bottom end of the table top (11); a lifting adjustment mechanism (3) is provided between the first table leg (13) and the second table leg (14); the second table leg (14) is slidably connected to the outer wall of the third table leg (15); the third table leg (15) is connected to the The second table leg (14) is connected to the top of the base (16); a linkage mechanism (4) is arranged between the second table leg (14) and the base (16); the classroom chair (2) is composed of a seat (21), a first chair leg (22), a second chair leg (23) and a chair back (24); the first chair leg (22) is connected to the base (16); the chair back (24) is hinged to one end of the seat (21); a folding mechanism (5) is arranged between the second chair leg (23) and the chair back (24); and the folding mechanism (5) is transmission-connected to the linkage mechanism (4).

2. A foldable desk for lunch break according to claim 1, characterized in that: The lifting and lowering adjustment mechanism (3) is composed of an ear plate (31), a hand wheel (32), a worm (33), a worm wheel (34), and a first screw (35); the ear plate (31) is connected to one side of the first table leg (13); the worm (33) is rotatably connected to the ear plate (31); the hand wheel (32) is connected to the worm (33); the worm wheel (34) is rotatably connected between the first table leg (13) and the second table leg (14) and meshes with the worm (33); the first screw (35) is connected to the bottom end of the worm wheel (34), passes through the interior of the second table leg (14), and is threadedly connected to the interior of the third table leg (15).

3. A foldable desk for lunch break according to claim 1, characterized in that: The linkage mechanism (4) is composed of a first connecting member (41), a first connecting rod (42), a second connecting rod (43), a first slider (44), a second slider (45), a first rack (46), a second rack (47), a gear (48), a second screw (49) and an adjusting block (410). The first connecting member (41) is respectively connected to the inner sides of the two second table legs (14). The first connecting rod (42) and the second connecting rod (43) are respectively rotatably connected in the corresponding first connecting member (41). The first slider (44) and the second slider (45) are symmetrical to each other and are both slidably connected to the top of the base (16). The first connecting rod (42) is rotatably connected to the first slider (44), the second connecting rod (43) is rotatably connected to the second slider (45), the gear (48) is rotatably connected to the top end of the base (16), the first rack (46) and the second rack (47) are symmetrically arranged and staggered with each other, and are respectively meshed on both sides of the gear (48), the first rack (46) is connected to one end of the first slider (44), the second rack (47) is connected to one end of the second slider (45), the second screw (49) is connected to the gear (48), and the adjustment block (410) is threadedly connected to the second screw (49).

4. A foldable desk for lunch break according to claim 1, characterized in that: The folding mechanism (5) is composed of a second connecting member (51), a corner connecting rod (52), a fixed shaft (53) and a third connecting member (54), wherein the second connecting member (51) is connected to one end of the adjusting block (410), one end of the corner connecting rod (52) is rotatably connected in the second connecting member (51), the third connecting member (54) is connected to the back of the chair back (24), the other end of the corner connecting rod (52) is rotatably connected in the third connecting member (54), the fixed shaft (53) is connected between two second chair legs (23), a straight slot (55) is provided on the rod body at the corner of the corner connecting rod (52) toward the connection with the third connecting member (54), and the fixed shaft (53) is located in the straight slot (55).

5. A foldable desk for lunch break according to claim 2, characterized in that: The top end of the worm wheel (34) is connected to a connecting shaft (36), the cross section of which is T-shaped, and the connecting shaft (36) is rotatably connected to the bottom end of the first table leg (13); the bottom end of the worm wheel (34) is connected to a connecting ring (37), the single-side cross section of which is L-shaped, and the connecting ring (37) is rotatably connected to the top end of the second table leg (14).

6. A foldable desk for lunch break according to claim 1, characterized in that: The base (16) is provided with a slide groove (411), the cross section of the slide groove (411) is in an inverted T shape, and the first sliding block (44) and the second sliding block (45) are both slidably fitted in the slide groove (411).

7. A foldable desk for lunch break according to claim 6, characterized in that: A positioning shaft (412) is provided at the bottom end of the slide groove (411), and the gear (48) is rotatably connected to the outer wall of the positioning shaft (412).

8. The foldable desk for lunch break according to claim 3 is characterized by: The second slider (45) is provided with a first plug hole (413), and the first rack (46) can be plugged into the first plug hole (413); the first slider (44) is provided with a second plug hole (414), and the second rack (47) can be plugged into the second plug hole (414).

9. The foldable desk for lunch break according to claim 1, characterized in that: The base (16) is provided with a cover body (415), one side of the cover body (415) is in an open shape, the cover body (415) is connected to the periphery of the second screw rod (49), and the adjustment block (410) is slidably connected in the cover body (415).

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