CN211833633U - Lifting armrest and learning chair with same - Google Patents

Abstract

The utility model belongs to children study table chair application equipment field especially relates to a lift handrail and use this handrail study chair. Comprises an L-shaped armrest seat, the armrest seat comprises an installation part horizontally fixed at the bottom of a seat board and an adjusting part vertically arranged at one side of the seat board, the adjusting part is sleeved with a lifting handle, the top of the lifting handle is provided with a holding handle, one end of the adjusting part is provided with a lifting groove, the bottom of the lifting groove is provided with a plurality of lifting sawteeth which are arranged up and down, the lifting handle is internally provided with a flexible plate assembly which is matched with the lifting sawteeth, the utility model provides a lifting handrail and a learning chair using the handrail, when in use, the inner side button of the lifting handle is pressed, the handrail can pull the lifting handle up and down to slide smoothly, when the button on the inner side of the lifting handle is released by a hand, the lifting handle stops at a certain height position, so that the children can operate conveniently as required, and the lifting handle has better social benefit and economic benefit.

Description

Lifting armrest and learning chair with same

Technical Field

The utility model belongs to children study table chair application equipment field especially relates to a lift handrail and use this handrail study chair.

Background

The children learning table and chair is one of human engineering tables and chairs, mainly aims at children, and meets the growth requirements of the children; the height and the inclination of the desk and chair for children can be adjusted, and the height, the depth and the inclination of the cushion and the height and the inclination of the back cushion can be adjusted by the chair, so that the children can be helped to develop a correct sitting posture.

At present, children use learning tables and chairs to study, especially, reading, writing or drawing becomes a normal state every day, but most of the existing children learning chairs do not have armrests, so that the children can not have clothes and supports on both arms after learning and thinking, in addition, the children learning chairs with the armrests are generally fixed, but the upper body heights of different children are different, and the children with different ages cannot use the chairs.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to foretell study chair because of not having the technical problem that handrail or handrail height fixing lead to, provide a reasonable in design, simple structure and convenient operation, can realize the lift handrail and use this handrail study chair of lift.

In order to achieve the above purpose, the utility model adopts the technical scheme that the utility model provides a lifting handrail, which comprises a handrail seat arranged in an L shape, wherein the handrail seat comprises an installation part horizontally fixed at the bottom of a chair seat plate and an adjusting part vertically arranged at one side of the chair seat plate, a lifting handle is sleeved outside the adjusting part, the top part of the lifting handle is provided with a handrail handle, one end of the adjusting part is provided with a lifting groove, the bottom of the lifting groove is provided with a plurality of lifting sawteeth arranged up and down, a flexible plate assembly matched with the lifting sawteeth is arranged in the lifting handle, the flexible plate assembly comprises an assembly box arranged in a box shape and a flexible plate arranged in the assembly box, the flexible plate penetrates through the bottom of the assembly box and is arranged in the assembly box in a rotating way, a torsion spring is arranged between the flexible plate and the assembly box, the assembly box is provided with a button used for driving the flexible plate to rotate, and the button penetrates through the lifting handle.

Preferably, the tooth-shaped slope of the lifting saw teeth faces upwards.

Preferably, the lifting groove is formed through a top of the adjusting part.

Preferably, the lifting handle and the armrest handle can be fixedly hinged.

Preferably, a fixing frame is arranged in the lifting handle, a fixing protrusion matched with the fixing frame is arranged at the back of the assembly box, and the cross section of the fixing protrusion is arranged in a right-angled triangle shape.

The utility model also provides a study chair, including the back of the chair, seat support, chair frame and foot rest, the both sides of seat support are provided with the handrail, the handrail is above-mentioned lift handrail, lift handrail passes through the installation department and can dismantle the both sides of fixing at the seat support.

Compared with the prior art, the utility model has the advantages and positive effects that,

1. the utility model discloses a lift handrail and applied this handrail study chair make when using, press the inboard button of lift handle, and the handrail can stimulate from top to bottom taking the lift handle, and smooth and easy slip, when the inboard button of lift handle is loosened to the hand, the lift handle stops at a certain high position, makes things convenient for children to operate as required, has better social and economic benefits.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic structural view of a lifting handrail provided in embodiment 1;

fig. 2 is an exploded view of the lifting handrail provided in embodiment 1;

FIG. 3 is a schematic structural view of the flexible board assembly provided in example 1;

FIG. 4 is an exploded view of the flexplate assembly provided in example 1;

FIG. 5 is a schematic view of the connection between the flexible board assembly and the lifting handle provided in example 1;

fig. 6 is a schematic structural view of a learning chair provided in embodiment 2;

in the above figures, 1, a handrail seat; 11. an installation part; 12. an adjustment section; 13. a lifting groove; 131. lifting saw teeth; 2. lifting the lifting handle; 21. a fixing frame; 3. a handle bar; 4. a flexible board assembly; 41. an assembly box; 411. a fixed protrusion; 42. scratching a plate; 43. a button; 44. a torsion spring; 5. a chair back; 6. a chair seat; 7. a chair frame; 8. a foot rest.

Detailed Description

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the present invention is not limited to the limitations of the specific embodiments of the present disclosure.

Embodiment 1, as shown in fig. 1 to 5, this embodiment aims to provide a lifting armrest for children with different heights, and for this purpose, the lifting armrest comprises an L-shaped armrest seat 1, specifically, the armrest seat 1 comprises an installation part 11 horizontally fixed at the bottom of the seat plate and an adjustment part 12 vertically arranged at one side of the seat plate, so that the installation part 11 is fixed below the seat, and the improvement of no armrest or an armrest (the original armrest needs to be removed and then installed) can be realized without causing other influences.

In order to realize the lifting function, lifting handle 2 is installed outside adjusting part 12, thus, the structure of the existing common telescopic rod is formed between lifting handle 2 and adjusting part 12, in order to realize the control of the height of lifting handle 2, one end of adjusting part 12 is provided with lifting groove 13, lifting groove 13 is a vertically arranged groove as a whole, in this embodiment, lifting groove 13 is arranged at the front section of adjusting part 12, namely adjusting part 12 is at this side of installation part 11, lifting saw-teeth 131 that set up from top to bottom are arranged at the bottom of lifting groove 13, and lifting saw-teeth 131 that set up under a plurality of form a plurality of steps.

In order to enable the lifting handle 2 to be clamped on the lifting saw teeth 131, a flexible plate 42 assembly 4 which is arranged in a way of being matched with the lifting saw teeth 131 is arranged in the lifting handle 2, specifically, the flexible plate 42 assembly 4 comprises an assembly box 41 which is arranged in a box shape and a flexible plate 42 which is arranged in the assembly box 41, the assembly box 41 is fixedly arranged in the lifting handle 2, in this embodiment, the assembly housing 41 is of open-bottomed design, and in this embodiment, the cross-section of the flexible panel 42 is shaped like a pair, the tail end of the long side of the flexible plate penetrates through the bottom of the assembly box 41, a rotating shaft is arranged at the position of the flexible plate 42 close to the bottom of the assembly box 41, so that the flexible plate 42 is rotatably arranged in the assembly box 41, a torsion spring 44 is provided between the flexible plate 42 and the cartridge 41 so that, due to the shape of the flexible plate 42, the end of the flexible plate 42 extending out of the cartridge 41 is inclined with respect to the cartridge 41 so as to be caught on the elevation saw teeth 131. In this embodiment, in order to match the flexible plate 42, the tooth-shaped slope of the lifting saw teeth 131 is upward, so that the flexible plate 42 can be stably clamped in the groove formed between the lifting saw teeth 131.

In order to make the flexible plate 42 fall off the lifting saw teeth 131, a button 43 for driving the flexible plate 42 to rotate is arranged on the assembly box 41, the button 43 may be directly fixed on the flexible plate 42, or may be arranged on the assembly box 41, in this embodiment, the button 43 is a slot formed on the end surface of the assembly box 41 to form a spring structure.

In order to facilitate the child to control the lifting handle, the button 43 is disposed through the lifting handle 2. Thus, the child can control the lifting handle 2 by pressing the button 43. Through foretell setting, children are when pressing button 43, upwards promote and fall handle 2 or press the elevating platform handle downwards and just can realize the control to lift handle 2 to make things convenient for children to use.

In order to realize the function of the handrail, the top of the lifting handle 2 is provided with a handrail handle, and the lifting handle 2 and the handrail handle can be fixedly hinged, so that when the handrail chamber is needed to be used, the lifting handle 2 and the handrail handle keep a vertical state, and when the handrail is not needed to be used, the lifting handle 2 and the handrail handle are turned over to be in a horizontal state.

In order to fix the assembly box 41 in the lifting handle 2, in the present embodiment, a fixing frame 21 is provided in the lifting handle 2, the fixing frame 21 is a square frame, a limiting plate is provided in the fixing frame 21, a fixing protrusion 411 matched with the fixing frame 21 is provided on the back of the assembly box 41, and the cross section of the fixing protrusion 411 is provided in a right triangle shape. Thus, under the action of the fixing frame 21 and the limiting plate, the fixing protrusion 411 can be clamped on the fixing frame 21, and the assembly box 41 can be fixed.

Embodiment 2, this embodiment provides a chair for learning provided by the above embodiment 1

As shown in fig. 6, like the existing chair, the chair for learning provided in this embodiment includes a chair back 5, a chair seat 6, a chair frame 7 and a foot rest 8, the movable armrests provided in embodiment 1 are installed on both sides of the chair seat 6, specifically, the installation parts 11 of the movable armrests are installed at the bottom of the chair seat 6 through bolts, and such an arrangement enables the movable armrests provided in embodiment 1 to be modified for the existing chair for learning, the chair for learning without armrests can be directly installed, and the chair for learning with armrests can be directly installed after the armrests are removed, and does not need to be purchased separately.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.

Claims (6)

1. A lifting handrail is characterized by comprising a handrail seat arranged in an L shape, wherein the handrail seat comprises an installation part horizontally fixed at the bottom of a chair seat plate and an adjusting part vertically arranged on one side of the chair seat plate, a lifting handle is sleeved outside the adjusting part, a handrail handle is arranged at the top of the lifting handle, a lifting groove is arranged at one end of the adjusting part, a plurality of lifting sawteeth arranged up and down are arranged at the bottom of the lifting groove, a flexible plate assembly matched with the lifting sawteeth is arranged in the lifting handle, the flexible plate assembly comprises an assembly box arranged in a box shape and a flexible plate arranged in the assembly box, the flexible plate penetrates through the bottom of the assembly box and is rotatably arranged in the assembly box, a torsion spring is arranged between the flexible plate and the assembly box, and a button used for driving the flexible plate to rotate is arranged on the assembly box, the button runs through the lifting handle.

2. The elevating handrail of claim 1, wherein the tooth-shaped slope of the elevating saw-tooth is upward.

3. The liftable armrest according to claim 2, wherein the lifting groove is provided through the top of the adjustment portion.

4. A lifting handrail as claimed in claim 3, wherein the lifting handle and the handle are fixedly hingedly connected.

5. The lifting handrail of claim 4, wherein a fixing frame is arranged in the lifting handle, and a fixing protrusion matched with the fixing frame is arranged on the back of the assembly box, and the cross section of the fixing protrusion is in a right triangle shape.

6. A learning chair comprises a chair back, a chair seat, a chair frame and foot rests, and is characterized in that armrests are arranged on two sides of the chair seat and are lifting armrests according to any one of claims 1-5, and the lifting armrests are detachably fixed on two sides of the chair seat through installation portions.

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