Height-adjustable child learning seat base

Abstract

The utility model relates to the field of seats, in particular to a height-adjustable child learning seat base, which adopts the technical scheme that the height-adjustable child learning seat base comprises a base body, a cover plate, a first foot support, a first connecting piece, a second foot support, a second connecting piece and a lifting assembly, a cover plate is installed on the base body, a first foot support is arranged on the base body, a first connecting piece is fixedly connected between the first foot support and the base body, a second foot support is arranged on the base body, a second connecting piece is installed at the bottom end of the second foot support, and a lifting assembly for adjusting the height of the second foot support is arranged in the second connecting piece. The lifting assembly is additionally arranged in the second connecting body used for connecting the second foot support and the base body, the lifting assembly drives the second foot support to move up and down so as to change the height of the second foot support, and the first foot support can achieve the effect of changing the height of the first foot support by stacking the first connecting piece.

Description

Technical Field

[0001] The utility model belongs to the field of seats, and in particular relates to a height-adjustable children's learning seat base. Background Art

[0002] With the development of science and technology, people are increasingly aware of the positive impact of correct sitting posture on people's growth. In order to prevent children in their growing period from suffering from skeletal deformities due to improper sitting posture for a long time, parents now often equip their children with learning seats. The base is a more important component of children's learning seats.

[0003] At present, the styles of existing children's learning seat bases are often fixed, and children have different heights as they age. The seat base installed on the children's learning seat cannot be adjusted according to the child's height, resulting in poor versatility.

[0004] Therefore, in order to address the problem that the existing children's learning seat base cannot adjust the height of the footrest installed on the base according to the child's height, resulting in poor versatility, a height-adjustable children's learning seat base is designed, and a lifting component is set between the footrest and the base to change the height of the footrest. Utility Model Content

[0005] In order to overcome the problem that the existing children's learning seat base cannot adjust the height of the footrest installed on the base according to the height of the child.

[0006] The technical solution of the utility model is: a height-adjustable children's learning chair base, including a base body, a cover plate, a No. 1 footrest, a No. 1 connecting piece, a No. 2 footrest, a No. 2 connecting piece and a lifting assembly; a cover plate is installed on the base body, a No. 1 footrest is provided on the base body, a No. 1 connecting piece is fixedly connected between the No. 1 footrest and the base body, a No. 2 footrest is provided on the base body, a No. 2 connecting piece is installed at the bottom end of the No. 2 footrest, and a lifting assembly for adjusting the height of the No. 2 footrest is provided in the No. 2 connecting piece.

[0007] Preferably, a lifting assembly is added to the No. 2 connecting body for connecting the No. 2 footrest and the base body, and the No. 2 footrest is driven to move up and down by the lifting assembly to change the height of the No. 2 footrest. The No. 1 footrest can achieve the effect of changing the height of the No. 1 footrest by superimposing the No. 1 connecting piece, and the cover plate can protect the connecting hole of the base body.

[0008] Preferably, the lifting assembly includes a lifting rod, a lifting column, a slide groove and a slider; the No. 2 connecting member is fixedly connected to a lifting rod with a lifting groove, the lifting column is movably connected inside the lifting rod, the lifting column is fixedly connected to the bottom end of the No. 2 foot support, a slide groove is provided in the lifting groove, a slider is slidably connected in the slide groove, and the slider is fixedly connected to the lifting column. The height of the No. 2 foot support is changed by moving the lifting column in the lifting groove. The slide groove and the slider can play a guiding role to avoid dislocation of the No. 2 foot support during the up and down movement.

[0009] Preferably, a guide rod is fixedly connected to the lifting rod, and a plastic spring is sleeved on the guide rod. One end of the plastic spring is fixedly connected to the bottom end of the lifting slot, and the other end of the plastic spring is fixedly connected to the lifting column. The plastic spring can slowly rebound due to the rigidity of its own material, and the guide rod can limit the direction of extrusion and stretching of the plastic spring. When the restriction is lost, the squeezed plastic spring will slowly rebound and push the No. 2 footrest upward.

[0010] Preferably, the lifting column is provided with limit slots arranged equidistantly from bottom to top, and a limit block matching the limit slot is movably connected in the lifting rod. A switch for moving the limit block is installed on the lifting rod. The limit block is clamped in the limit slot to play a fixing role, thereby applying force to the plastic spring to prevent it from rebounding. After toggling the switch, the limit block will be moved out of the limit slot, and the No. 2 foot support will automatically move up under the action of the plastic spring.

[0011] Preferably, the No. 1 plug post is fixedly connected to the No. 2 connector, and a No. 1 slot matching the No. 1 plug post is provided at the bottom end of the base body. The No. 1 slot and the No. 1 plug post can fix the No. 2 connector to the bottom end of the base body.

[0012] Preferably, a connecting column is fixedly connected to the top of the No. 1 connecting piece, a No. 2 slot is provided on the connecting column, and a No. 2 plug column matching the No. 2 slot is fixedly connected to the bottom end of the No. 1 footrest, and the No. 1 footrest can be fixed above the No. 1 connecting piece through the No. 2 plug column and the No. 2 slot.

[0013] Preferably, a slot matching the cover is provided on the base body, a No. 3 slot is provided in the slot, and a No. 3 pin matching the No. 3 slot is fixedly connected to the bottom end of the cover. The No. 3 pin is inserted into the No. 3 slot to cover the cover in the hole slot, thereby shielding the No. 3 slot and avoiding dust accumulation in the No. 3 slot when the footrest is not installed, while ensuring that the top of the base body is smooth and beautiful.

[0014] Preferably, the bottom end of the No. 1 connector is fixedly connected to a No. 4 pin, which matches the No. 2 slot, and the No. 4 pin matches the No. 3 slot. The No. 4 pin is inserted into the No. 3 slot to fix the No. 1 connector. Inserting the No. 4 pin of the new No. 1 connector into the No. 3 slot can stack the No. 1 connector. By increasing the number of No. 1 connectors between the No. 1 footrest and the base body, the height of the No. 1 footrest can be changed.

[0015] Beneficial effects of the utility model:

[0016] 1. By designing a height-adjustable children's learning chair base, a lifting component is installed in the second connector that connects the second footrest to the base body. The lifting component drives the second footrest to move up and down, thereby changing the height of the second footrest. The first footrest can be adjusted in height by stacking the first connector.

[0017] 2. The base can be equipped with footrest No. 1, footrest No. 2, or no footrest to change the appearance of the chair. There are many styles, and users can choose the corresponding appearance according to their preferences to increase its appeal to children. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Shown is a schematic diagram of the three-dimensional structure of the base body and the first footrest of the height-adjustable children's learning seat base of the present invention;

[0019] Figure 2 Shown is a schematic diagram of the first three-dimensional structure of the base body and the second footrest of the height-adjustable children's learning chair base of the present invention;

[0020] Figure 3 Shown is a schematic diagram of the three-dimensional structure of the second footrest and lifting column of the height-adjustable children's learning seat base of the present invention;

[0021] Figure 4 Shown is a schematic diagram of the three-dimensional structure of the second connecting piece of the height-adjustable children's learning chair base of the present invention;

[0022] Figure 5 Shown is a schematic diagram of the second three-dimensional structure of the base body and the second footrest of the height-adjustable children's learning seat base of the present invention;

[0023] Figure 6 Shown is a schematic diagram of the three-dimensional structure of the base body and cover of the height-adjustable children's learning seat base of the present invention

[0024] Figure 7 Shown is a schematic diagram of the three-dimensional structure of the No. 1 footrest and No. 1 connecting piece of the height-adjustable children's learning seat base of the present invention.

[0025] Explanation of the accompanying reference numerals: 1. Base body; 2. Cover plate; 3. Footrest No. 1; 4. Connecting piece No. 1; 5. Footrest No. 2; 6. Connecting piece No. 2; 701. Lifting rod; 702. Lifting column; 703. Slide groove; 704. Slider; 8. Guide rod; 9. Plastic spring; 10. Limiting groove; 11. Limiting block; 12. Switch; 13. Plug column No. 1; 14. Slot No. 1; 15. Slot No. 2; 16. Plug column No. 2; 17. Slot No. 3; 18. Plug column No. 3; 19. Plug column No. 4. DETAILED DESCRIPTION

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] See also Figure 1-Figure 7 The utility model provides an embodiment: a height-adjustable children's learning chair base includes a base body 1, a cover plate 2, a No. 1 footrest 3, a No. 1 connecting piece 4, a No. 2 footrest 5, a No. 2 connecting piece 6 and a lifting assembly; the cover plate 2 is installed on the base body 1, and the base body 1 is provided with a No. 1 footrest 3, a No. 1 connecting piece 4 is fixedly connected between the No. 1 footrest 3 and the base body 1, the base body 1 is provided with a No. 2 footrest 5, and a No. 2 connecting piece 6 is installed at the bottom of the No. 2 footrest 5, and a lifting assembly for adjusting the height of the No. 2 footrest 5 is provided in the No. 2 connecting piece 6. By adding a lifting assembly to the No. 2 connecting body used to connect the No. 2 footrest 5 and the base body 1, the lifting assembly drives the No. 2 footrest 5 to move up and down, so as to change the height of the No. 2 footrest 5, and the No. 1 footrest 3 can achieve the effect of changing the height of the No. 1 footrest 3 by superimposing the No. 1 connecting piece 4, and the cover plate 2 can protect the connecting hole of the base body 1.

[0028] See also Figure 3-Figure 4, in this embodiment, the lifting assembly includes a lifting rod 701, a lifting column 702, a slide 703 and a slider 704; the No. 2 connecting member 6 is fixedly connected to the lifting rod 701, a lifting slot is provided in the lifting rod 701, and a lifting column 702 is movably connected in the lifting rod 701, and the lifting column 702 is fixedly connected to the bottom end of the No. 2 foot support 5, a slide 703 is provided in the lifting slot, and a slider 704 is slidably connected in the slide 703, and the slider 704 is fixedly connected to the lifting column 702, and a guide rod 8 is fixedly connected in the lifting rod 701, and a plastic spring 9 is sleeved on the guide rod 8, one end of the plastic spring 9 is fixedly connected to the bottom end of the lifting slot, and the other end of the plastic spring 9 is fixedly connected to the lifting column 702, and a limiting slot 10 arranged equidistantly from bottom to top is provided on the lifting column 702, and the lifting rod 701 is movably connected to The limit block 11 matches the limit slot 10, and the lifting rod 701 is equipped with a switch 12 for moving the limit block 11. The height of the No. 2 foot support 5 is changed by moving the lifting column 702 in the lifting slot. The slide slot 703 and the slider 704 can play a guiding role to prevent the No. 2 foot support 5 from being dislocated during the up and down movement. The plastic spring 9 can slowly rebound due to the rigidity of its own material. The guide rod 8 can limit the direction of extrusion and stretching of the plastic spring 9. When the restriction is lost, the extruded plastic spring 9 will slowly rebound and push the No. 2 foot support 5 upward. The limit block 11 is clamped in the limit slot 10 to play a fixing role, thereby applying force to the plastic spring 9 to prevent it from rebounding. After toggling the switch 12, the limit block 11 will be moved out of the limit slot 10, and the No. 2 foot support 5 will automatically move up under the action of the plastic spring 9.

[0029] See also Figure 4-Figure 7In this embodiment, the No. 1 plug post 13 is fixedly connected to the No. 2 connecting member 6, and the bottom end of the base body 1 is provided with a No. 1 slot 14 that matches the No. 1 plug post 13. The top of the No. 1 connecting member 4 is fixedly connected to a connecting column, and a No. 2 slot 15 is provided on the connecting column. The bottom end of the No. 1 footrest 3 is fixedly connected to a No. 2 plug post 16 that matches the No. 2 slot 15. The base body 1 is provided with a slot that matches the cover plate 2, and a No. 3 slot 17 is provided in the slot. The bottom end of the cover plate 2 is fixedly connected to a No. 3 plug post 18 that matches the No. 3 slot 17. The bottom end of the No. 1 connecting member 4 is fixedly connected to a No. 4 plug post 19. The No. 4 plug post 19 matches the No. 2 slot 15, and the No. 4 plug post 19 matches the No. 3 slot 17. Through the No. 1 slot 14 and the No. 1 The pin 13 can fix the No. 2 connector 6 on the bottom end of the base body 1, and the No. 1 footrest 3 can be fixed above the No. 1 connector 4 through the No. 2 pin 16 and the No. 2 slot 15. The No. 3 pin 18 inserted into the No. 3 slot 17 can cover the cover plate 2 in the hole groove, blocking the No. 3 slot 17, and avoiding dust accumulation in the No. 3 slot 17 when the footrest is not installed, while ensuring that the top of the base body 1 is smooth and beautiful. The No. 4 pin 19 is inserted into the No. 3 slot 17 to fix the No. 1 connector 4. Inserting the No. 4 pin 19 of the new No. 1 connector 4 into the No. 3 slot 17 can stack the No. 1 connector 4, and by increasing the number of No. 1 connectors 4 between the No. 1 footrest 3 and the base body 1, the height of the No. 1 footrest 3 can be changed.

[0030] When working, the user can choose to use without footrest, connect with footrest 1 3 or connect with footrest 2 5 according to his / her preference;

[0031] When the user chooses to use without the footrest, he only needs to insert the third pin 18 at the bottom end of the cover plate 2 into the third slot 17 opened on the base body 1 and fit it into the hole groove;

[0032] When the user chooses to connect the No. 1 footrest 3, he first selects the corresponding number of No. 1 connectors 4 according to his height, removes the two cover plates 2 in front, and then inserts the No. 4 pin 19 at the bottom end of one of the No. 1 connectors 4 into the No. 3 slot 17. Then, he takes a new No. 1 connector 4 and inserts the No. 4 pin 19 at the bottom end into the No. 2 slot 15 at the top of the No. 1 connector 4. This is repeated until all the No. 1 connectors 4 are connected. Finally, the No. 2 pin 16 at the bottom end of the No. 1 footrest 3 is inserted into the No. 2 slot 15 of the top No. 1 connector 4.

[0033] When the user chooses to connect the No. 2 foot support 5, the No. 1 plug 13 is aligned with the No. 1 slot 14, the No. 2 connector 6 is installed under the base body 1, and then the switch 12 is turned on. The switch 12 drives the limit block 11 to disengage from the uppermost limit slot 10 and contact the fixation of the No. 2 foot support 5. The plastic spring 9 begins to rebound slowly, applying a continuous and uniform upward force to the No. 2 foot support 5. Under the restriction of the slider 704 and the slide slot 703, the lifting column 702 drives the No. 2 foot support 5 to move slowly upward. When it moves to the appropriate angle, the switch 12 is turned off, and the limit block 11 is snapped into the corresponding limit slot 10 to form a fixation.

[0034] Through the above steps, a height-adjustable children's learning seat base is designed, and a lifting component is installed in the No. 2 connecting body used to connect the No. 2 footrest 5 and the base body 1. The lifting component drives the No. 2 footrest 5 to move up and down, thereby changing the height of the No. 2 footrest 5. The No. 1 footrest 3 can achieve the effect of changing the height of the No. 1 footrest 3 by superimposing the No. 1 connecting piece 4, so as to solve the problem that the existing children's learning seat base cannot adjust the height of the footrest installed on the base according to the height of the child.

[0035] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the purpose of the present invention.

Claims

1. A height-adjustable children's learning chair base, comprising a base body (1) and a cover plate (2); characterized in that: It also includes a No. 1 foot support (3), a No. 1 connecting piece (4), a No. 2 foot support (5), a No. 2 connecting piece (6) and a lifting assembly; A cover plate (2) is installed on the base body (1), a No. 1 foot support (3) is provided on the base body (1), a No. 1 connecting piece (4) is fixedly connected between the No. 1 foot support (3) and the base body (1), a No. 2 foot support (5) is provided on the base body (1), a No. 2 connecting piece (6) is installed at the bottom end of the No. 2 foot support (5), and a lifting component for adjusting the height of the No. 2 foot support (5) is provided in the No. 2 connecting piece (6).

2. The height-adjustable children's learning seat base according to claim 1, characterized in that: The lifting assembly comprises a lifting rod (701), a lifting column (702), a slide groove (703) and a slider (704); the lifting rod (701) is fixedly connected to the No. 2 connecting member (6), a lifting groove is provided in the lifting rod (701), a lifting column (702) is movably connected in the lifting rod (701), the lifting column (702) is fixedly connected to the bottom end of the No. 2 foot support (5), a slide groove (703) is provided in the lifting groove, a slider (704) is slidably connected in the slide groove (703), and the slider (704) is fixedly connected to the lifting column (702).

3. The height-adjustable children's learning seat base according to claim 2, characterized in that: A guide rod (8) is fixedly connected inside the lifting rod (701), a plastic spring (9) is sleeved on the guide rod (8), one end of the plastic spring (9) is fixedly connected to the bottom end of the lifting groove, and the other end of the plastic spring (9) is fixedly connected to the lifting column (702).

4. The height-adjustable children's learning seat base according to claim 3, characterized in that: The lifting column (702) is provided with limit slots (10) arranged equidistantly from bottom to top, a limit block (11) matching the limit slots (10) is movably connected in the lifting rod (701), and a switch (12) for moving the limit block (11) is installed on the lifting rod (701).

5. The height-adjustable children's learning seat base according to claim 4, characterized in that: The No. 1 plug post (13) is fixedly connected to the No. 2 connecting piece (6), and the bottom end of the base body (1) is provided with a No. 1 slot (14) matching the No. 1 plug post (13).

6. The height-adjustable children's learning seat base according to claim 5, characterized in that: The top of the No. 1 connecting piece (4) is fixedly connected with a connecting column, which is provided with a No. 2 slot (15), and the bottom of the No. 1 footrest (3) is fixedly connected with a No. 2 plug-in column (16) that matches the No. 2 slot (15).

7. The height-adjustable children's learning seat base according to claim 6, characterized in that: A notch matching the cover plate (2) is provided on the base body (1), a number three slot (17) is provided in the notch, and a number three plug post (18) matching the number three slot (17) is fixedly connected to the bottom end of the cover plate (2).

8. The height-adjustable children's learning seat base according to claim 7, characterized in that: The bottom end of the No. 1 connector (4) is fixedly connected with a No. 4 plug post (19), the No. 4 plug post (19) matches the No. 2 slot (15), and the No. 4 plug post (19) matches the No. 3 slot (17).

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