Child learning chair with adjustable seat
By designing an automatic adjustment mechanism in the children's learning chair, the problem of inconvenient adjustment of the existing children's learning chair is solved, and automatic adjustment of the seat plate height and backrest plate angle is realized, which improves the adjustment convenience.
Patent Information
- Application Number
- CN202421237858.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-03
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-06-03
AI Technical Summary
The adjustment of the existing children's learning chair is inconvenient, especially when it is done manually by children, which is time-consuming and labor-intensive.
A children's learning chair with adjustable seats is designed, using a height adjustment mechanism and an angle adjustment mechanism, and the seat plate height and backrest plate angle are automatically adjusted through the motor drive gear and worm mechanism.
It improves the convenience of adjustment of children's learning chairs and reduces the time-consuming and labor-intensive adjustment process caused by the small strength of children's hands.
Smart Images
Figure CN222640156U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of children's learning chairs, in particular to a children's learning chair with an adjustable seat. Background Art
[0002] Children's study chairs are chairs used for children to study and do homework, usually used with study tables;
[0003] However, there are still some problems with the children's study chair in the prior art:
[0004] Although the children's study chairs in the prior art can adjust the height and angle to enable children to maintain a normal sitting posture, most of the children's study chairs are adjusted manually. Since children have less hand strength, the adjustment of the children's study chairs is inconvenient, time-consuming and laborious. Utility Model Content
[0005] In order to solve the problems in the prior art that the adjustment of children's learning chairs is inconvenient and the adjustment process is time-consuming and labor-intensive; the purpose of the utility model is to provide a children's learning chair with an adjustable seat.
[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions: a children's learning chair with an adjustable seat, comprising a movable base, a seat plate and a backrest plate, a height adjustment mechanism is provided between the movable base and the seat plate, and an angle adjustment mechanism is provided between the seat plate and the backrest plate;
[0007] The height adjustment mechanism includes a hollow rod, one end of which is fixedly installed at the center of the movable base, a lifting rod is slidably provided inside the hollow rod, one end of the lifting rod is fixedly installed on the lower surface of the seat plate, and an end of the hollow rod away from the movable base is rotatably provided with a rotating shaft, a driving gear is fixedly installed in the middle of the rotating shaft, a plurality of evenly distributed tooth grooves are opened on the outer wall of the lifting rod, and the teeth of the driving gear are in movably contact with the inner wall of the tooth groove, a first motor is fixedly provided on the upper surface of the movable base, a transmission rod is fixedly installed on the driving output end of the first motor, and a first bevel gear is fixedly installed on the end of the transmission rod away from the first motor and one end of the rotating shaft, and the two first bevel gears are meshed with each other.
[0008] Preferably, two guide blocks are slidably mounted on the bottom wall of the hollow rod, and opposite sides of the two guide blocks are fixedly connected to an end of the lifting rod away from the seat plate.
[0009] Preferably, the angle adjustment mechanism includes two side plates, the two side plates are fixedly mounted on one side of the seat plate, a rotating shaft is rotatably mounted between the two side plates, a connecting seat is fixedly mounted on the outer wall of the rotating shaft, one side of the connecting seat is fixedly connected to one end of the backrest plate, a worm is provided on one side of the seat plate, a worm wheel is fixedly mounted on one end of the rotating shaft, the worm is meshingly connected with the worm wheel, a second motor is fixedly mounted on the lower surface of the seat plate, a rotating rod is fixedly mounted on the driving output end of the second motor, a second bevel gear is fixedly mounted on one end of the rotating rod away from the second motor and one end of the worm, and the two second bevel gears are meshing with each other.
[0010] Compared with the prior art, the beneficial effects of the utility model are:
[0011] In the utility model, the height adjustment mechanism and the angle adjustment mechanism are used to realize automatic adjustment of the seat plate height and the backrest plate angle. Compared with the existing technology of manual adjustment, the convenience of adjusting the children's learning chair is effectively improved, and the time-consuming and laborious adjustment process is avoided due to the small hand strength of the children. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0013] Figure 1 The utility model is a schematic diagram of the overall structure of a children's study chair with an adjustable seat.
[0014] Figure 2 This is another overall structural schematic diagram of a children's study chair with an adjustable seat according to the utility model.
[0015] Figure 3 It is a schematic diagram of the separation of the height adjustment mechanism and the seat plate of the utility model.
[0016] Figure 4 It is a schematic diagram of the connection and cutaway structure of the hollow rod of the height adjustment mechanism of the utility model.
[0017] Figure 5 It is a schematic diagram of the connection between the angle adjustment mechanism of the utility model and the seat plate and the backrest plate.
[0018] Figure 6 For this utility model Figure 5 A magnified schematic diagram of part A in FIG.
[0019] In the figure: 1. movable base; 2. seat plate; 3. backrest plate; 21. armrest rod; 22. cushion; 4. height adjustment mechanism; 41. hollow rod; 42. lifting rod; 43. guide block; 44. rotating shaft; 45. fixed plate; 46. driving gear; 47. tooth groove; 48. first motor; 49. first fixed block; 5. transmission rod; 51. first bevel gear; 6. angle adjustment mechanism; 61. side plate; 62. rotating shaft; 63. connecting seat; 64. worm; 65. L-shaped support plate; 66. worm wheel; 67. second motor; 68. second fixed block; 69. rotating rod; 7. second bevel gear. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0021] Example: Figure 1-6 As shown, the utility model provides a children's learning chair with an adjustable seat, comprising a movable base 1, a seat plate 2 and a backrest plate 3, a height adjustment mechanism 4 is provided between the movable base 1 and the seat plate 2, an angle adjustment mechanism 6 is provided between the seat plate 2 and the backrest plate 3, by providing the height adjustment mechanism 4, the height adjustment mechanism 4 can automatically adjust the height of the seat plate 2, by providing the angle adjustment mechanism 6, the angle adjustment mechanism 6 can automatically adjust the angle of the backrest plate 3, thereby improving the convenience of adjustment;
[0022] The height adjustment mechanism 4 includes a hollow rod 41, one end of which is fixedly installed at the center of the mobile base 1, a lifting rod 42 is slidably provided inside the hollow rod 41, one end of the lifting rod 42 is fixedly installed on the lower surface of the seat plate 2, and a rotating shaft 44 is rotatably provided at the end of the hollow rod 41 away from the mobile base 1, a driving gear 46 is fixedly installed in the middle of the rotating shaft 44, a plurality of evenly distributed tooth grooves 47 are opened on the outer wall of the lifting rod 42, the teeth of the driving gear 46 are in active contact with the inner wall of the tooth groove 47, a first motor 48 is fixedly provided on the upper surface of the mobile base 1, a transmission rod 5 is fixedly installed on the driving output end of the first motor 48, and a first bevel gear 51 is fixedly installed on the end of the transmission rod 5 away from the first motor 48 and one end of the rotating shaft 44, and the two first bevel gears 51 are meshed with each other.
[0023] Two armrests 21 are fixedly mounted on the upper surface of the seat plate 2, and cushions 22 are fixedly mounted in the middle of the two armrests 21. By providing the armrests 21 and the cushions 22, the safety and comfort of the children's learning seat are improved.
[0024] Two guide blocks 43 are slidably installed on the bottom wall of the hollow rod 41, and the opposite sides of the two guide blocks 43 are fixedly connected to one end of the lifting rod 42 away from the seat plate 2. By setting the guide blocks 43, the guide blocks 43 can guide the lifting rod 42 in the vertical direction so that the lifting rod 42 can maintain the vertical lifting.
[0025] A fixing plate 45 is fixedly mounted on one end of the hollow rod 41 away from the moving base 1 , and the other end of the rotating shaft 44 is rotatably connected to the fixing plate 45 . By providing the fixing plate 45 , the fixing plate 45 can support the rotating shaft 44 .
[0026] A first fixed block 49 is fixedly installed on the outer wall of the first motor 48. The side of the first fixed block 49 away from the first motor 48 is fixedly connected to the upper surface of the movable base 1. By setting the first fixed block 49, the first fixed block 49 can support the first motor 48 and improve the stability of the first motor 48.
[0027] The angle adjustment mechanism 6 includes two side plates 61, which are fixedly mounted on one side of the seat plate 2. A rotating shaft 62 is rotatably mounted between the two side plates 61. A connecting seat 63 is fixedly mounted on the outer wall of the rotating shaft 62. One side of the connecting seat 63 is fixedly connected to one end of the backrest plate 3. A worm 64 is provided on one side of the seat plate 2. A worm wheel 66 is fixedly mounted on one end of the rotating shaft 62. The worm 64 is meshedly connected with the worm wheel 66. A second motor 67 is fixedly mounted on the lower surface of the seat plate 2. A rotating rod 69 is fixedly mounted on the driving output end of the second motor 67. The second bevel gear 7 is fixedly installed on one end of the rod 69 away from the second motor 67 and one end of the worm 64. The two second bevel gears 7 are meshed with each other. By driving the rotating shaft 62 to rotate, the rotating shaft 62 can make the backrest board 3 flip around the axis of the rotating shaft 62 through the connecting seat 63, thereby realizing the angle adjustment of the backrest board 3. By turning on the second motor 67, the driving shaft of the second motor 67 can rotate the rotating rod 69, the rotating rod 69 can rotate the worm 64 through the second bevel gear 7, and the worm 64 can rotate the rotating shaft 62 through the worm wheel 66.
[0028] An L-shaped support plate 65 is fixedly installed on one side of the seat plate 2, the worm gear 64 and one end of the L-shaped support plate 65 are rotatably connected, and the rotating rod 69 and the other end of the L-shaped support plate 65 are rotatably connected. By setting the L-shaped support plate 65, the L-shaped support plate 65 can support the worm gear 64 and the rotating rod 69.
[0029] A second fixing block 68 is fixedly installed at one end of the second motor 67. The second fixing block 68 is fixedly connected to the lower surface of the seat plate 2. By setting the second fixing block 68, the second fixing block 68 can support the second motor 67 and improve the stability of the second motor 67.
[0030] Working principle: When the height of the seat plate 2 of the children's learning chair needs to be adjusted, the first motor 48 is started, and the driving shaft of the first motor 48 rotates the transmission rod 5, and the transmission rod 5 rotates the rotating shaft 44 through the two first bevel gears 51, and the rotating shaft 44 rotates the driving gear 46, and the driving gear 46 drives the lifting rod 42 to rise and fall in the vertical direction through a plurality of tooth grooves 47, and the lifting rod 42 causes the seat plate 2 to rise and fall synchronously;
[0031] When the angle of the backrest board 3 needs to be adjusted, the second motor 67 is turned on, and the driving shaft of the second motor 67 rotates the rotating rod 69, and the rotating rod 69 rotates the worm 64 through the two second bevel gears 7, and the worm 64 rotates the rotating shaft 62 through the worm wheel 66. The rotating shaft 62 rotates the backrest board 3 with the axis of the rotating shaft 62 as the center of the circle through the connecting seat 63, thereby conveniently realizing the automatic adjustment of the height and angle of the children's learning chair, thereby effectively improving the convenience of adjusting the children's learning chair, and avoiding the time-consuming and laborious adjustment process due to the small hand strength of the child.
[0032] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.
Claims
1. A children's study chair with an adjustable seat, comprising a movable base (1), a seat plate (2) and a backrest plate (3), characterized in that: A height adjustment mechanism (4) is provided between the movable base (1) and the seat plate (2), and an angle adjustment mechanism (6) is provided between the seat plate (2) and the backrest plate (3); The height adjustment mechanism (4) comprises a hollow rod (41), one end of which is fixedly mounted at the center of the movable base (1), a lifting rod (42) is slidably arranged inside the hollow rod (41), one end of which is fixedly mounted on the lower surface of the seat plate (2), and a rotating shaft (44) is rotatably arranged at one end of the hollow rod (41) away from the movable base (1), a driving gear (46) is fixedly mounted in the middle of the rotating shaft (44), and the lifting rod (42) is rotatably mounted on the lower surface of the seat plate (2). ) is provided with a plurality of evenly distributed tooth grooves (47) on the outer wall, the teeth of the driving gear (46) are in movable contact with the inner wall of the tooth groove (47), a first motor (48) is fixedly provided on the upper surface of the movable base (1), a transmission rod (5) is fixedly installed on the driving output end of the first motor (48), and a first bevel gear (51) is fixedly installed on one end of the transmission rod (5) away from the first motor (48) and one end of the rotating shaft (44), and the two first bevel gears (51) are meshed with each other.
2. A children's study chair with an adjustable seat as claimed in claim 1, characterized in that: Two handrails (21) are fixedly mounted on the upper surface of the seat plate (2), and soft cushions (22) are fixedly mounted in the middle of the two handrails (21).
3. The adjustable seat children's study chair as claimed in claim 1, characterized in that: Two guide blocks (43) are slidably mounted on the bottom wall of the hollow rod (41), and the opposite sides of the two guide blocks (43) are fixedly connected to an end of the lifting rod (42) away from the seat plate (2).
4. The adjustable seat children's study chair as claimed in claim 1, characterized in that: A fixing plate (45) is fixedly mounted on one end of the hollow rod (41) away from the movable base (1), and the other end of the rotating shaft (44) is rotatably connected to the fixing plate (45).
5. The adjustable seat children's study chair as claimed in claim 1, characterized in that: A first fixing block (49) is fixedly mounted on the outer wall of the first motor (48); a surface of the first fixing block (49) away from the first motor (48) is fixedly connected to the upper surface of the movable base (1).
6. The adjustable seat children's study chair as claimed in claim 1, characterized in that: The angle adjustment mechanism (6) comprises two side plates (61), the two side plates (61) are fixedly mounted on one side of the seat plate (2), a rotating shaft (62) is rotatably mounted between the two side plates (61), a connecting seat (63) is fixedly mounted on the outer wall of the rotating shaft (62), one side of the connecting seat (63) is fixedly connected to one end of the backrest plate (3), a worm (64) is provided on one side of the seat plate (2), a worm wheel (66) is fixedly mounted on one end of the rotating shaft (62), the worm (64) is meshingly connected with the worm wheel (66), a second motor (67) is fixedly mounted on the lower surface of the seat plate (2), a rotating rod (69) is fixedly mounted on the driving output end of the second motor (67), a second bevel gear (7) is fixedly mounted on one end of the rotating rod (69) away from the second motor (67) and one end of the worm (64), and the two second bevel gears (7) are meshingly mounted.
7. The adjustable seat children's study chair as claimed in claim 6, characterized in that: An L-shaped support plate (65) is fixedly mounted on one side of the seat plate (2); the worm (64) is rotatably connected to one end of the L-shaped support plate (65); and the rotating rod (69) is rotatably connected to the other end of the L-shaped support plate (65).
8. The adjustable seat children's study chair as claimed in claim 6, characterized in that: A second fixing block (68) is fixedly mounted on one end of the second motor (67), and the second fixing block (68) is fixedly connected to the lower surface of the seat plate (2).