CN111109907A - Main body structure of sitting and lying dual-purpose student chair and sitting and lying dual-purpose office chair - Google Patents
Main body structure of sitting and lying dual-purpose student chair and sitting and lying dual-purpose office chair Download PDFInfo
- Publication number
- CN111109907A CN111109907A CN202010089539.4A CN202010089539A CN111109907A CN 111109907 A CN111109907 A CN 111109907A CN 202010089539 A CN202010089539 A CN 202010089539A CN 111109907 A CN111109907 A CN 111109907A
- Authority
- CN
- China
- Prior art keywords
- piece
- component
- chair
- assembly
- sitting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 101000623895 Bos taurus Mucin-15 Proteins 0.000 claims description 9
- 230000004630 mental health Effects 0.000 abstract description 9
- 230000008602 contraction Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 25
- 230000005484 gravity Effects 0.000 description 10
- 230000007246 mechanism Effects 0.000 description 8
- 230000000712 assembly Effects 0.000 description 7
- 238000000429 assembly Methods 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 3
- 210000004204 blood vessel Anatomy 0.000 description 2
- 210000003141 lower extremity Anatomy 0.000 description 2
- 230000036544 posture Effects 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C1/00—Chairs adapted for special purposes
- A47C1/02—Reclining or easy chairs
- A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
- A47C1/024—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
- A47C3/20—Chairs or stools with vertically-adjustable seats
- A47C3/22—Chairs or stools with vertically-adjustable seats with balancing device, e.g. by spring, by weight
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/36—Supports for the head or the back
- A47C7/40—Supports for the head or the back for the back
- A47C7/46—Supports for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs
Landscapes
- Health & Medical Sciences (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
本发明的一种坐躺两用学生椅和坐躺两用办公椅主体结构主要由坐躺切换架部件和椅背部件组成。坐躺切换架部件的斜件组件I、斜件组件II和侧件组成了交叉架组件。可控气弹簧设置在交叉架组件上，椅背部件通过定紧组件连接在交叉架组件上。操作可控气弹簧和定紧组件，实现椅子的坐躺互切及座件的高度调整。其结构特性，使可控气弹簧在行程小时，座件高度调整大和椅子坐时收缩、躺时伸展，以及坐躺时脚都搁在地上等多个优点。本发明采用交叉式主体机构，用于教室的尚处于开发处女地的坐躺学生椅和大众化的坐躺办公椅上，为中小学生及教师等的恰当和良好的午睡方式创造条件，服务于中小学生的发育、身心健康和学习。
The main structure of the student chair for sitting and lying and the office chair for sitting and lying in the present invention is mainly composed of a sitting and lying switching frame part and a seat back part. The inclined piece assembly I, the inclined piece assembly II and the side pieces of the seat-relief switch frame component constitute the cross frame assembly. The controllable gas spring is arranged on the cross frame assembly, and the seat back part is connected to the cross frame assembly through the tightening assembly. Operate the controllable gas spring and the tensioning assembly to realize the mutual cutting of the chair and the height adjustment of the seat. Its structural characteristics enable the controllable gas spring to have many advantages such as small stroke, great adjustment of the seat height, contraction of the chair when sitting, stretching when lying down, and feet on the ground when sitting and lying. The invention adopts a cross-type main body, which is used in the virgin sitting and lying student chairs in the classroom and the popular sitting and lying office chairs, creating conditions for the proper and good nap mode for primary and secondary school students and teachers, and serving the primary and secondary school students. development, physical and mental health and learning.
Description
Technical Field
The invention relates to the technical field of education equipment and furniture, in particular to a main body structure of a sitting and lying dual-purpose student chair and a sitting and lying dual-purpose office chair.
Background
The proper and good afternoon nap mode is beneficial to development, physical and mental health and learning of primary and secondary school students, and physical and mental health and work of office workers such as teachers and the like. The afternoon nap status of the implemented or promoted middle and primary schools is various: most students in middle and primary schools adopt improper sleeping postures on desks; some students take sleeping tools for afternoon nap on the ground; some schools are provided with afternoon nap classrooms; … … are provided. The development of the sitting and lying dual-purpose student chair for classrooms creates conditions for the middle and primary school students to have a proper and good afternoon nap mode. For a variety of reasons, a suitable and good chair for students in classrooms has been a virgin area to be developed. The development of a sitting and lying dual-purpose office chair suitable for popularization provides a proper and good afternoon nap mode for office staff such as teachers and the like, and provides conditions for improving the utilization rate of office places.
In the technical schemes of 'telescopic office and study chair for sitting and lying' with the patent number ZL201721517914.0, 'telescopic chair for sitting and lying' with the patent number ZL201820336205.0 and 'application number 201910637925' X 'sitting and lying switching mechanism of sitting and lying seat', and the like, the technical schemes are tried to create conditions for proper and good afternoon nap modes of office staff such as primary and secondary school students and teachers, from the practice of the technical schemes, from the deep understanding and research on school educational appliances and the using environment of classrooms, the classrooms are crowded and neat, the used space and area are limited, the height difference between the same class and different classes of students is large, the primary and secondary school students are good, and the like, the proper and good chair for the classroom to be realized meets the following requirements that ① is telescopic, the chair for sitting and lying is contracted and stretched when the chair back is laid, the feet are placed on the ground, the height range of ③ is large, the armrest is not adjustable, the chair is not comfortable, the use is convenient, and the soft bag is used for students, and the chair is safe and the environment is protected.
The main mechanisms of the three technical schemes are all parallelogram mechanisms, the chair back is linked with the seat frame, the height adjustment range of the seat is small, and the requirements of the sitting and lying dual-purpose student chair can be met only partially, or the three technical schemes are realized by adding mechanisms and complex structures; the adjustment range of the seat height and the backrest angle of the office chair for sitting and lying is also increased.
We try to adopt another main body mechanism technical scheme and use an excellent structure to meet the requirements of the sitting and lying dual-purpose student chair and the office chair.
Disclosure of Invention
The invention mainly aims to provide a main body structure of a sitting and lying dual-purpose student chair and a sitting and lying dual-purpose office chair, which tries to adopt a cross type main body mechanism, wherein a chair back and a seat frame can be separated or linked, so as to meet the requirements that the sitting and lying dual-purpose student chair suitable for a classroom is telescopic, feet are placed on the ground when sitting and lying, the height of the seat can be adjusted in a large range, the use is convenient, reliable and comfortable, safety measures are taken, and the like, so that the chair is suitable for the characteristics of crowded classrooms, tidiness, large height difference of students and the like; the requirements of large adjustment ranges of the seat height and the chair back angle of the sitting and lying dual-purpose office chair are met. Therefore, conditions are created for popularization and proper and good afternoon nap implementation of schools and offices, and development, physical and mental health and learning of primary and secondary school students are served; the method creates conditions for proper and good afternoon nap modes of office workers such as teachers and the like, serves physical and mental health and work of the office workers such as teachers and the like, and creates conditions for improving the utilization rate of office places.
In order to achieve the main object, the present invention is achieved by the following technical means. The main structure of the dual-purpose student chair for sitting and lying and the dual-purpose office chair for sitting and lying mainly comprises a sitting and lying switching frame component and a chair back component, wherein the sitting and lying switching frame component mainly comprises an inclined piece component, a side piece, a seat piece and a locking component, the inclined piece component comprises a transverse piece, a left inclined piece and a right inclined piece, one end of the transverse piece is fixedly connected with the proper position of the left inclined piece, the other end of the transverse piece is fixedly connected with the proper position of the right inclined piece, the inclined piece component comprises an inclined piece component I and an inclined piece component II, the transverse piece comprises a transverse piece I and a transverse piece II, the left inclined piece comprises a left inclined piece I and a left inclined piece II, the right inclined piece comprises a right inclined piece I and a right inclined piece II, one end of the transverse piece I is fixedly connected with the proper position of the left inclined piece I, the other end of the transverse piece I is fixedly connected with the proper position of the right inclined piece I, and thus forming said ramp member assembly I, one end of said cross member II being fixedly connected to a suitable position of said left ramp member II, the other end of said cross member II being fixedly connected to a suitable position of said right ramp member II, and thus forming said ramp member assembly II, said suitable position of said left ramp member I being rotatably connected to a suitable position of said left ramp member II, said suitable position of said right ramp member I being rotatably connected to a suitable position of said right ramp member II, said ramp member assembly I being interdigitated with said ramp member assembly II by said rotatable connection, said side members being left and right side members, said side members being formed of front and rear side members, said front and rear side members forming a moving pair, said left side member being formed of a front left side member and a rear left side member, said front and rear left side members forming a left moving pair, the right side part consists of a front right side part and a rear right side part, the front right side part and the rear right side part form a right moving kinematic pair, one end of the rear left side part is rotatably connected with the upper end of the left inclined part I, one end of the rear right side part is rotatably connected with the upper end of the right inclined part I, one end of the front left side part is rotatably connected with the upper end of the left inclined part II, one end of the front right side part is rotatably connected with the upper end of the right inclined part II, the inclined part assembly and the side parts form a cross frame assembly, the left side of the seat part is connected with the left side part, the right side of the seat part is connected with the right side part, and the locking assembly is arranged at a proper position of the cross frame assembly. The back of the chair part mainly constitute by back of the body frame subassembly and back of the body subassembly, back of the body frame subassembly constitute by back of the body straight piece and back of the body crosspiece, back of the body straight piece for left back straight piece and right back straight piece, the one end of back of the body crosspiece link firmly the right position of left back straight piece on, the other end of back of the body crosspiece link firmly the right back straight piece on the suitable position, back of the body subassembly connect back of the body frame subassembly on, back of the body part connect be in the suitable position of cross frame subassembly on.
The locking assembly is arranged at a proper position of the cross frame assembly and is realized by the following steps: the locking member assembly mainly comprises an upper moving member, a lower moving member and a locking member, one end of the upper moving member is connected to the proper position of the inclined member assembly I, one end of the lower moving member is connected to the proper position of the inclined member assembly II, the upper moving member is movably connected with the lower moving member, and the locking member is connected to the upper moving member and the lower moving member.
The locking assembly is arranged at a proper position of the cross frame assembly and is realized by the following steps: the locking assembly is a controllable gas spring assembly, the controllable gas spring assembly is composed of a small controllable gas spring rod assembly, a connecting piece I, a connecting piece II and a control button, the small controllable gas spring rod assembly is composed of a sleeve piece and a rod piece, the sleeve piece and the rod piece form a moving pair, one end of the small controllable gas spring rod assembly is connected with the connecting piece I, the other end of the small controllable gas spring rod assembly is connected with the connecting piece II, the connecting piece I is connected to the proper position of the inclined piece assembly I, the connecting piece II is connected to the proper position of the inclined piece assembly II, and the control button is arranged at the proper position of the sitting and lying switching frame component.
The locking assembly is arranged at a proper position of the cross frame assembly and is realized by the following steps: the locking component is a limiting piece which is fixedly connected with one side piece of the front side piece and the rear side piece which form the moving kinematic pair, and the limiting piece is movably connected with the other side piece.
The chair back component is connected to the proper position of the cross frame component, and is realized by the following steps: the left back straight piece of the chair back component is fixedly connected with the upper end of the left inclined piece of the cross frame component, and the right back straight piece of the chair back component is fixedly connected with the upper end of the right inclined piece of the cross frame component.
The chair back component is connected to the proper position of the cross frame component and is realized through a fastening component: the left back of the body straight piece of back of the chair part with the left oblique I upper end swing joint of cross frame subassembly, the right back of the body straight piece of back of the chair part with the right oblique I upper end swing joint of cross frame subassembly, decide tight subassembly by decide tight piece, locating pin, setting element and elastic component and constitute, decide tight subassembly for a left side decide tight subassembly and the right side decide tight subassembly, the tight subassembly of deciding be left side decide tight piece and right side tight piece, the locating pin be left locating pin and right locating pin, the setting element be left setting element and right setting element, the elastic component be left elastic component and right elastic component, a left side decide tight subassembly by left side decide tight piece, left locating pin, left setting element and left elastic component and constitute, a left side decide the one end of tight piece pass through left locating pin rotate connect in the right position of the left back of the body straight piece lower extreme of the back of the chair part, the other end of left side tight is provided with the constant head tank, the left side setting element link firmly the suitable position of the back left side piece of cross frame subassembly on, the one end of left side elastic component connect the suitable position of left side retaining member on, the other end of left side elastic component connect left side setting element on, the right side decide tight subassembly by right side retaining member, right locating pin, right side setting element and right elastic component and constitute, the one end of right side retaining member rotate through right locating pin and connect the right back of the body right side of back of the body part suitable position of lower extreme on, the other end of right side retaining member be provided with the constant head tank, right side setting element set up the suitable position of the back right side piece of cross frame subassembly on, the one end of right side elastic component connect the right side suitable position of retaining member on, the other end of right side elastic component connect the right side setting element on.
The left inclined piece and the right inclined piece are suitably nonlinear.
The proper position of the sitting and lying switching component is provided with a buffer piece.
And a limiting part and a plurality of limiting holes are arranged at the proper position of the cross frame component.
And a pulley is arranged at a proper position of the lower part of the inclined component.
Through the structure, the main body structures of the sitting and lying dual-purpose student chair and the sitting and lying dual-purpose office chair have two types of operations and actions of sitting and lying mutual cutting and seat part height adjustment.
I) The typical operation and action of the mutual cutting of the sitting and lying can be divided into two types by different locking assemblies, wherein ① locking assemblies are controllable gas spring assemblies, ② locking assemblies are limiting pieces, the operation and action of the mutual cutting of the sitting and lying can be divided into two types by different connection modes of chair back components and sitting and lying switching components, ① chair back components are connected with cross frame components through the locking assemblies, the chair back components and the sitting and lying switching components are in independent motion, namely, the sitting and lying switching components and the chair back components are respectively operated, ② left back straight pieces and right back straight pieces of the chair back components are respectively fixedly connected with the upper ends of left inclined pieces and right inclined pieces of the cross frame components, the chair back components and the sitting and lying switching components are linked, and the operation and action of the mutual cutting of the sitting and lying of the locking assemblies which are controllable gas spring assemblies and limiting pieces are respectively described by taking the independent motion of the chair back components and the sitting and lying switching.
First, the operation and action of the locking assembly for the controllable gas spring assembly for seating and lying are switched as follows.
When sitting, the sitting and lying switching part is positioned and locked by the controllable gas spring assembly; the chair back component is positioned and locked by the locking component, the lower ends of the left straight back component and the right straight back component are respectively connected with the left fixing component and the right fixing component in a rotating way through the left positioning pin and the right positioning pin, and the positioning grooves at one ends of the left fixing component and the right fixing component respectively clamp the left positioning component and the right positioning component under the respective actions of the elasticity of the left elastic component and the right elastic component, so that the chair back component is fixed in a sitting state. The seat and lying switching component is provided with a buffer piece. When the back rest component group is a movable back rest component and a fixed back rest component, the movable back rest component is positioned at the lower position.
There are two methods of operation to switch from a sitting position to a lying position.
The first method of operation: when a person sits on the chair and operates the control button of the controllable gas spring assembly, the controllable gas spring assembly still has a constant force after losing the locking force. The human body gravity overcomes the constant force of the controllable gas spring assembly and the gradually increased force of the buffer piece, the seat piece is horizontally moved and extended downwards and forwards along with the moving kinematic pair and the inclined piece assembly, the gravity center of the human body moves forwards along with the seat piece, and the supporting points of the inclined piece assembly I and the inclined piece assembly II respectively move forwards and backwards. In the proper position, the control button of the controllable gas spring assembly is released and the seat member is locked in the reclined position by the controllable gas spring assembly. The left fixing piece and the right fixing piece are operated to overcome the elasticity of the left elastic piece and the right elastic piece, the positioning grooves of the left fixing piece and the right fixing piece are separated from the left positioning piece and the right positioning piece respectively, the chair back component is rotated backwards, the left positioning pin and the right positioning pin respectively lean against the lower surfaces of the rear left side piece and the rear right side piece, the chair back component is positioned at the lying position, and the movable backrest piece is pulled upwards to a proper position.
The second operation method comprises the following steps: when a person sits on or leaves the chair, the left fixing piece and the right fixing piece are operated to overcome the elasticity of the left elastic piece and the right elastic piece, the positioning grooves of the left fixing piece and the right fixing piece are respectively separated from the left positioning piece and the right positioning piece to realize the backward rotation of the chair back component, the left positioning pin and the right positioning pin respectively lean against the lower surfaces of the rear left side piece and the rear right side piece to be positioned at the lying position, and the movable backrest piece is pulled upwards to a proper position; when a person sits on the chair, the control button of the controllable gas spring assembly is operated, the controllable gas spring assembly still has a constant force after the locking force is lost, the gravity of the human body overcomes the constant force of the controllable gas spring assembly and the gradually increased force of the buffer piece, the seat piece is enabled to horizontally move downwards and forwards along with the sliding pair and the oblique piece assembly, and the gravity center of the human body moves forwards along with the seat piece. Meanwhile, the supporting points of the inclined component I and the inclined component II respectively move forwards and backwards, and the movable backrest is adjusted to be in a proper lying position.
After the operation is finished, the main structure of the sitting and lying dual-purpose student chair and the office chair is in a fully-extended state when lying: when the seat part is horizontally moved and extended downwards and forwards along with the sliding pair and the inclined part assembly, the gravity center of the human body moves forwards along with the seat part; the support points of the inclined component I and the inclined component II extend forwards and backwards respectively, so that the contact area with the ground is increased; the movable backrest part is extended to a proper lying position, so that the lying position is stable, reliable and comfortable, and the lying with feet on the ground is realized. Lying on the ground with feet makes the lower limbs of the human body relax and smooth, and is beneficial to the circulation of channels and collaterals and blood vessels.
There are also two methods of operation to switch from lying to sitting.
The first method of operation: when the person leaves the chair, the control button of the controllable gas spring is operated, and the controllable gas spring still has a constant force after losing the locking force. The seat part moves upwards and backwards along with the sliding pair and the inclined part assembly and contracts in a translation manner, restores to a sitting position and is locked by the locking force of the controllable gas spring; the chair back component is enabled to rotate forwards, the left fixing piece and the right fixing piece move backwards, and under the respective action of the elasticity of the left elastic piece and the right elastic piece, the positioning grooves of the left fixing piece and the right fixing piece clamp the left positioning piece and the right positioning piece respectively, the chair back component is fixed in a sitting state, and the movable backrest component contracts to the lower side.
The second operation method comprises the following steps: the chair back component is operated according to the method, and then the sitting and lying switching component is operated according to the method. Similarly, the reclining assembly, the seat member and the seat back component are retracted to switch the reclining position to the seating position.
When the buffer piece is arranged on the sitting and lying switching component, the sitting and lying switching is stable and smooth.
The operation and action of the locking component which is a limiting piece for the mutual cutting of sitting and lying are as follows.
When the locking assembly is a limiting member, the seat/reclining switching member is preferably provided with a buffer member, and the elastic force of the buffer member preferably provides a sufficient upward force to the seat member.
When sitting, the limiting piece combines the front side piece and the rear side piece which form the moving kinematic pair. The back component is positioned by the tightening assembly. The movable backrest part is in the lower position.
There are two methods of operation to switch from a sitting position to a lying position.
The first method of operation: the limiting piece is operated firstly, the front side piece and the rear side piece which form the moving kinematic pair are loosened, the elasticity of the buffer piece is overcome by manpower, the seat piece is extended in a downward and forward translation mode along with the moving pair and the inclined piece assembly, and the supporting points of the inclined piece assembly I and the inclined piece assembly II move forwards and backwards respectively. In a proper position, the limiting piece is made to combine the front side piece and the back side piece of the moving kinematic pair, and the seat piece is locked. And then operating the left fixing piece and the right fixing piece to overcome the elasticity of the left elastic piece and the right elastic piece, wherein the positioning grooves of the left fixing piece and the right fixing piece are respectively separated from the left positioning piece and the right positioning piece to realize the backward rotation of the chair back component, and the left positioning pin and the right positioning pin respectively lean against the lower surfaces of the rear left side piece and the rear right side piece to be positioned at the lying position.
The second operation method comprises the following steps: the people sits or leaves the chair, operates left holding member and right holding member, overcomes left elastic component and right elastic component elasticity, and the constant head tank of left holding member and right holding member breaks away from left setting element and right setting element respectively, realizes the back of the chair part and changes, leans on the back left side spare and the back right side spare below respectively by left locating pin and right locating pin, fixes a position in the position of lying. And operating the limiting piece, loosening the front side piece and the rear side piece which form the moving kinematic pair, overcoming the elasticity of the elastic piece by manpower, horizontally moving and extending the seat piece downwards and forwards along with the moving pair and the inclined piece assembly, and respectively moving the supporting points of the inclined piece assembly I and the inclined piece assembly II forwards and backwards. In proper position, the limiting piece is used to combine the front and back parts of the moving kinematic pair and the seat part is locked. The movable backrest part is adjusted to be in a proper lying position.
There are also two methods of operation to switch from lying to sitting.
The first method of operation: the limiting piece is operated firstly, the front side piece and the rear side piece which form the moving pair are loosened, the seat piece is moved and contracted along with the moving pair and the inclined piece component in an upward and backward direction under the action of the elastic force of the buffer piece, the supporting points of the inclined piece component I and the inclined piece component II are respectively contracted backwards and forwards, and the floor area is reduced. After the seat is restored, the front side part and the rear side part which form the movable kinematic pair are combined together by the limiting piece, and the seat is locked. Then the chair back component is enabled to rotate forwards, the left fixing piece and the right fixing piece move backwards, and under the respective action of the elasticity of the left elastic piece and the right elastic piece, the positioning grooves of the left fixing piece and the right fixing piece respectively clamp the left positioning piece and the right positioning piece, the chair back component is fixed in a sitting state, and the movable backrest component contracts to the lower side.
The second operation method comprises the following steps: the chair back component is operated according to the method, and then the sitting and lying switching component is operated according to the method. Similarly, the reclining assembly, the seat member and the seat back component are retracted to switch the reclining position to the seating position.
The operation of the locking assembly, seat member is lowered to a certain position or the lowest position and then locked, ① when a plurality of limiting holes are arranged on the proper position of the side member, the limiting member is inserted into the proper limiting hole, ② when a plurality of limiting holes are arranged on the proper position of the inclined member assembly, the limiting member is inserted into the proper limiting hole, the locking assembly is operated, the seat member is pushed upwards by the constant force of the locking assembly until the relative position of the front side member and the rear side member which form the moving pair is determined, the seat member is limited at the required height by the limiting member, and the adjustment of the height of the seat member is completed.
When the left inclined piece and the right inclined piece are in proper non-linear shapes, the cross inclined piece assembly I and the cross inclined piece assembly II can be prevented from possibly injuring a human body when the seat and the lying are switched.
When the pulley/universal pulley is arranged at the lower part of the inclined component, the friction damage of the lower part of the inclined component to the ground is greatly reduced when the seat and the bed are switched; the chair is convenient to move.
In conclusion, the invention adopts the crossed main body mechanism, the chair back and the seat frame can be separated or linked, so as to meet the requirements that the student chair for sitting and lying is telescopic, the feet are all placed on the ground when the student chair sits and lies, the height of the seat can be adjusted in a large range, the use is convenient, reliable and comfortable, safety measures are taken, and the like, so as to adapt to the characteristics that the classroom is crowded but is tidy, the height of the student is greatly different, and the like; the requirements of enlarging the height adjusting range of the seat and the angle adjusting range of the chair back of the office chair for sitting and lying are met. Therefore, conditions are created for popularization and proper and good afternoon nap implementation of schools and offices, and development, physical and mental health and learning of primary and secondary school students are served; creates conditions for proper and good afternoon nap modes of office workers such as teachers and the like, serves physical and mental health and work of the office workers such as teachers and the like, and serves for improving the utilization rate of office places.
Drawings
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings.
FIG. 1 is a schematic left side view of a preferred embodiment of the main structure of a chair for students and office;
fig. 2 is a schematic view of fig. 1 taken along direction a with the seat member removed.
Detailed Description
Examples of the present invention are described in detail below with reference to the accompanying drawings.
See fig. 1 and 2. The chair mainly comprises a sitting and lying switching frame component 1 and a chair back component 2, wherein the sitting and lying switching frame component 1 mainly comprises a diagonal member assembly 1-1, a side member 2-1, a seat member 3-1 and a locking assembly 4-1, the diagonal member assembly 1-1 comprises a transverse member 1-1-1, a left diagonal member 2-1-1 and a right diagonal member 3-1-1, one end of the transverse member 1-1-1 (shown by a dotted line in figure 1) is fixedly connected with the left diagonal member 2-1-1, the other end of the transverse member 1-1-1 is fixedly connected with the right diagonal member 3-1-1, the diagonal member assembly 1-1 is a diagonal member assembly I I-1-1 and a diagonal member assembly II-1-1, the diagonal member assembly I I-1-1 comprises a transverse member I1-I-1-1 (shown by a dotted line in figure 1), One end of the transverse member I1-I-1-1 is fixedly connected with the left inclined member I2-I-1-1, the other end of the transverse member I1-I-1-1 is fixedly connected with the right inclined member I3-I-1-1, the inclined member assembly II-1-1 is composed of the transverse member II 1-II-1-1 (shown by a dotted line in figure 1), the left inclined member II 2-II-1-1 and the right inclined member II 3-II-1-1, one end of the transverse member II 1-II-1-1 is fixedly connected with the left inclined member II 2-II-1-1, and the other end of the transverse member II 1-II-1-1 is fixedly connected with the right inclined member II 3-II-1-1 Fixedly connected, the left inclined piece 2-1-1 and the right inclined piece 3-1-1 are in a curve shape, namely the left inclined piece I2-I-1-1, the right inclined piece I3-I-1-1, the left inclined piece II 2-II-1-1 and the right inclined piece II 3-II-1-1 are in a curve shape, the left inclined piece I2-I-1-1 and the left inclined piece II 2-II-1-1 are rotationally connected, the right inclined piece I3-I-1-1 and the right inclined piece II 3-II-1-1 are rotationally connected, an inclined piece assembly I I-1-1 and an inclined piece assembly II-1-1 are in a cross shape through the rotational connection, the side piece 2-1 is a left side piece Z-2-1 and a right side piece Y-2-1, the side part 2-1 consists of a front side part 1-2-1 and a rear side part 2-2-1 (shown by a dotted line in figure 1), the front side part 1-2-1 and the rear side part 2-2-1 form a moving kinematic pair, the left side part Z-2-1 consists of a front left side part 1-Z-2-1 and a rear left side part 2-Z-2-1 (shown by a dotted line in figure 2), the front left side part 1-Z-2-1 and the rear left side part 2-Z-2-1 form a left moving kinematic pair, the right side part Y-2-1 consists of a front right side part 1-Y-2-1 and a rear right side part 2-Y-2-1 (shown by a dotted line in figure 2), the front right side part 1-Y-2-1 and the rear right side part 2-Y-2-1 form a right moving kinematic pair, the rear left side part 2-Z-2-1 and the rear right side part 2-Y-2-1 are respectively provided with 4 limiting holes K (shown by dotted lines on figures 1 and 2) and a limiting part X, one end of the rear left side part 2-Z-2-1 is rotatably connected with the upper end of a left inclined part I2-I-1-1, one end of the rear right side part 2-Y-2-1 is rotatably connected with the upper end of a right inclined part I3-I-1-1, one end of the front left side part 1-Z-2-1 is rotatably connected with the upper end of a left inclined part II 2-II-1-1, one end of the front right side part 1-Y-2-1 is rotatably connected with the upper end of a right inclined part II 3-II-1-1, the inclined part 1-1 and the side part 2-1 form a cross frame component J, the left side of a seat part 3-1 is connected with a left side part Z-2-1, the right side of the seat part 3-1 is connected with a right side part Y-2-1, a locking component 4-1 is a controllable gas spring component K-4-1, the controllable gas spring component K-4-1 is composed of a controllable gas spring rod small component 1-K-4-1, a connecting piece I2-K-4-1 (shown by a dotted line in figure 1), a connecting piece II 3-K-4-1 (shown by a dotted line in figure 1) and a control button 4-K-4-1, the controllable gas spring rod small component 1-K-4-1 is composed of a sleeve piece 1-1-K-4-1 and a rod piece 2-1-K-4-1, the external member 1-1-K-4-1 and the rod member 2-1-K-4-1 form a moving kinematic pair, one end of the controllable gas spring rod small component 1-K-4-1 is movably connected with the connecting piece I2-K-4-1, the other end of the controllable gas spring rod small component 1-K-4-1 is movably connected with the connecting piece II 3-K-4-1, the connecting piece I2-K-4-1 is fixedly connected with the transverse member I1-I-1-1 of the inclined member component I I-1-1, the connecting piece II 3-K-4-1 is fixedly connected with the transverse member II 1-II-1-1 of the inclined member component II-1-1, the control button 4-K-4-1 is fixedly connected with the seat member 3-1. The buffer piece H is two tension springs L, wherein two ends of one tension spring L are respectively connected to the right inclined piece I3-I-1-1 and the right inclined piece II 3-II-1-1, and two ends of the other tension spring L are respectively connected to the left inclined piece I2-I-1-1 and the left inclined piece II 2-II-1-1. The rear left side part 2-Z-2-1 and the rear right side part 2-Y-2-1 are provided with a limiting part X and a plurality of limiting holes K. Cushion member H may also be disposed on rod 2-1-K-4-1 of controllable gas spring assembly K-4-1 (not shown). The two-dot chain line on the right of fig. 1 indicates a state where the seatback member 2 is lying down.
The chair back component 2 mainly comprises a back frame component 1-2 and a back rest component 2-2, the back frame component 1-2 comprises a back straight component 1-1-2 and a back cross component 2-1-2 (shown by dotted lines in figure 1), the back straight component 1-1-2 is a left back straight component 1-1-1-2 and a right back straight component 2-1-1-2, one end of the back cross component 2-1-2 is fixedly connected with the left back straight component 1-1-2, the other end of the back cross component 2-1-2 is fixedly connected with the right back straight component 2-1-1-2, the back rest component 2-2 comprises a fixed back rest component 1-2-2 and a movable back rest component 2-2, the fixed back rest component 1-2-2 is fixedly connected at the lower part of the back frame component 1-2, the movable backrest 2-2-2 is movably connected at the upper part of the back frame component 1-2. The chair back component 2 is connected with the cross frame component J through a fastening component 3-3, the left straight back part 1-1-2 of the chair back component 2 is rotationally connected with the left inclined part I2-I-1-1 of the cross frame component J, the right straight back part 2-1-2 of the chair back component 2 is rotationally connected with the right inclined part I3-I-1-1-1 of the cross frame component J, the fastening component 3-3 consists of a fastening component 1-3-3, a positioning pin 2-3-3, a positioning component 3-3-3 and an elastic component 4-3-3, the fastening component 3-3 is a left fastening component Z-3-3 and a right fastening component Y-3-3, the fastening component 1-3 is a left fastening component Z-1-3-3-3 and a right fastening component Y-1-3-3, the positioning pin 2-3-3 is a left positioning pin Z-2-3-3 and a right positioning pin Y-2-3-3, the positioning piece 3-3-3 is a left positioning piece Z-3-3 and a right positioning piece Y-3-3, the elastic piece 4-3-3 is a left elastic piece Z-4-3-3 and a right elastic piece Y-4-3-3, the left fastening component Z-3-3 is composed of a left fastening piece Z-1-3-3, a left positioning pin Z-2-3-3, a left positioning piece Z-3-3-3 and a left elastic piece Z-4-3-3, one end of the left fastening piece Z-1-3-3 is rotatably connected with the left back straight piece 1-3-3 through the left positioning pin Z-2-3-3 A positioning groove C (shown by a dotted line in figure 1) is arranged at the other end of the left positioning piece Z-1-3-3 at the lower end of the-1-2, a left positioning piece Z-3-3 is fixedly connected on the back left side piece 2-Z-2-1, one end of a left elastic piece Z-4-3-3 is connected on the left positioning piece Z-1-3-3, the other end of the left elastic piece Z-4-3-3 is connected on the left positioning piece Z-3-3-3, a right positioning component Y-3-3 consists of a right positioning piece Y-1-3-3, a right positioning pin Y-2-3-3, a right positioning piece Y-3-3 and a right elastic piece Y-4-3-3-3, one end of Y-1-3-3 of the right fixing piece is rotatably connected with the lower end of the right back straight piece 2-1-1-2 through a right positioning pin Y-2-3-3, the other end of Y-1-3-3 of the right fixing piece is provided with a positioning groove C, a right positioning piece Y-3-3-3 is fixedly connected on the back right side piece 2-Y-2-1, one end of a right elastic piece Y-4-3-3 is connected on the right fixing piece Y-1-3-3, and the other end of the right elastic piece Y-4-3-3 is connected on the right positioning piece Y-3-3-3. The transverse member I1-I-1-1 is provided with a universal pulley W.
Through the structure, the main structure of the sitting and lying dual-purpose student chair and the office chair has two operations of sitting and lying mutual cutting and seat height adjustment.
I) The operation and action of mutual cutting of sitting and lying.
When sitting, the sitting and lying switching part 1 is positioned and locked by the controllable gas spring component K-4-1; the chair back component 2 is positioned and locked by a locking component 3-3, the lower ends of a left straight back 1-1-1-2 and a right straight back 2-1-1-2 are respectively connected with the left fastening piece Z-1-3-3 and the right fastening piece Y-1-3-3 in a rotating way through a left positioning pin Z-2-3-3 and a right positioning pin Y-2-3-3, a positioning groove C at one end of the left fastening piece Z-1-3-3 and the right fastening piece Y-1-3-3 respectively clamps the left positioning piece Z-3-3-3 and the right positioning piece Y-3-3-3 under the respective action of the elasticity of the left elastic piece Z-4-3-3 and the right elastic piece Y-4-3-3-3, the seat back member 2 is fixed in the seating state. The two tension springs L provided on the cross frame assembly J are in a suitably tensioned state. The movable backrest 2-2-2 is in the lower position.
There are two methods of operation to switch from a sitting position to a lying position.
The first method of operation: when a person sits on the chair and operates the control button 4-K-4-1 of the controllable gas spring component K-4-1, the controllable gas spring component K-4-1 still has a constant force after losing the locking force. The gravity of the human body overcomes the constant force of the controllable gas spring component K-4-1 and the gradually increased elastic force of the two tension springs L, the seat component 3-1 is horizontally moved downwards and forwards along with the moving kinematic pair and the inclined component 1-1, the gravity center of the human body moves forwards along with the translation, and the supporting points of the inclined component I I-1-1 and the inclined component II-1-1 move forwards and backwards respectively. At the appropriate location, control button 4-K-4-1 of controllable gas spring assembly K-4-1 is released and seat member 3-1 is locked by controllable gas spring assembly K-4-1. The left fixing piece Z-1-3-3 and the right fixing piece Y-1-3-3 are operated, the elasticity of the left elastic piece Z-4-3-3 and the right elastic piece Y-4-3-3 is overcome, the positioning grooves C of the left fixing piece Z-1-3-3 and the right fixing piece Y-1-3-3 are separated from the left positioning piece Z-3-3-3 and the right positioning piece Y-3-3 respectively, the chair back component 1 is rotated backwards, the left positioning pin Z-2-3-3 and the right positioning pin Y-2-3-3 respectively lean against the lower surfaces of the rear left side piece 2-Z-2-1 and the rear right side piece 2-Y-2-1 and are positioned at the lying positions, and the movable backrest piece 2-2-2 is pulled upwards to the proper position.
The second operation method comprises the following steps: a person sits on or leaves the chair, operates the left fixing piece Z-1-3-3 and the right fixing piece Y-1-3-3, overcomes the elasticity of the left elastic piece Z-4-3-3 and the right elastic piece Y-4-3-3, and the positioning grooves C of the left fixing piece Z-1-3-3 and the right fixing piece Y-1-3-3 are respectively separated from the left positioning piece Z-3-3-3 and the right positioning piece Y-3-3 to realize the backward rotation of the chair back component 1, and is respectively leaned against the lower surfaces of the rear left side piece Z-2-2-1 and the rear right side piece Y-2-2-1 by the left positioning pin Z-2-3-3 and the right positioning pin Y-2-3-3, when the movable backrest is positioned at the lying position, the movable backrest 2-2-2 is pulled up to a proper position; when a person sits on the chair, the control button 4-K-4-1 of the controllable gas spring component K-4-1 is operated, a constant force is still provided after the controllable gas spring component K-4-1 loses the locking force, the gravity of the human body overcomes the constant force of the controllable gas spring component K-4-1 and the gradually increased elastic force of the two tension springs L, the seat component 3-1 is enabled to move downwards and forwards along with the moving pair and the inclined component 1-1, and the gravity center of the human body moves forwards along with the downward and forward movement of the seat component 3-1. Meanwhile, the supporting points of the inclined component I I-1-1 and the inclined component II-1-1 move forwards and backwards respectively, and the movable backrest 2-2-2 is adjusted to be in a proper lying position.
After the operation is finished, the main structure of the sitting and lying dual-purpose student chair and the office chair is in a fully-extended state when lying: when the seat part 3-1 is horizontally moved and extended downwards and forwards along with the sliding pair and the inclined part component 1-1, the gravity center of the human body moves forwards; the supporting points of the inclined component I I-1-1 and the inclined component II-1-1 extend forwards and backwards respectively, so that the grounding area is increased; the movable backrest 2-2-2 is extended to a proper lying position, so that the lying position is stable, reliable and comfortable, and the lying with feet on the ground is realized. Lying on the ground with feet makes the lower limbs of the human body relax and smooth, and is beneficial to the circulation of channels and collaterals and blood vessels.
There are also two methods of operation to switch from lying to sitting.
The first method of operation: when a person leaves the chair, the control button 4-K-4-1 of the controllable gas spring component K-4-1 is operated, and the controllable gas spring component K-4-1 still has a constant force after losing the locking force. The constant force of the controllable gas spring assembly K-4-1 pushes the inclined piece assembly 1-1 to contract inwards, so that the occupied area is reduced, the seat piece 3-1 is translated and contracted upwards and backwards along with the sliding pair and the inclined piece assembly 1-1, is restored to the sitting position and is locked by the locking force of the controllable gas spring assembly K-4-1; the chair back component 2 is enabled to rotate forwards, the left fixing piece Z-1-3-3 and the right fixing piece Y-1-3-3 move backwards, under the respective actions of the elasticity of the left elastic piece Z-4-3-3 and the right elastic piece Y-4-3-3, the positioning groove C of the left fixing piece Z-1-3-3 and the positioning groove C of the right fixing piece Y-1-3-3 respectively clamp the left positioning piece Z-3-3-3 and the right positioning piece Y-3-3-3, the chair back component 2 is fixed in a sitting state, and the movable backrest component 2-2-2 contracts to the lower side.
The second operation method comprises the following steps: the backrest part 2 is operated according to the above method, and then the sitting/lying switching part 1 is operated according to the above method. Similarly, the reclining assembly 1-1, the seat member 3-1 and the backrest part 2 are retracted to switch the reclining position to the sitting position.
The two tension springs L are arranged, so that the sitting and lying can be switched stably and smoothly. The universal pulleys W arranged at the lower ends of the left inclined piece 2-1-1 and the right inclined piece 3-1-1 can greatly reduce the friction damage of the lower part of the inclined piece component to the ground when the seat and the bed are switched; the chair is convenient to move. The left oblique piece 2-1-1 and the right oblique piece 3-1-1 are curved, so that the cross oblique piece assembly I I-1-1 and the oblique piece assembly II-1-1 can be prevented from possibly injuring human bodies when the sitting and lying are switched.
II) operation of height adjustment of the seat member. The technical scheme has the structural characteristic that the height of the seat piece is adjusted greatly under the condition that the operation stroke of the controllable gas spring component K-4-1 is small. The separate operation of the seat and reclining switch member 1 and the backrest member 2, in turn, makes this advantage fully applicable. The controllable gas spring assembly K-4-1 is operated, and the seat member 3-1 is lowered to a certain position or the lowest position and then locked. A plurality of limiting holes K are arranged on the rear left side part 2-Z-2-1 and the rear right side part 2-Y-2-1. Two limiting pieces X are respectively inserted into suitable holes of the rear left side piece 2-Z-2-1 and the rear right side piece 2-Y-2-1. Then the controllable gas spring component K-4-1 is operated, the seat part 3-1 moves upwards under the action of the constant force of the controllable gas spring component K-4-1 and the elasticity of the two tension springs L until the relative positions of the front side part 1-2-1 and the rear side part 2-2-1 forming the moving pair are determined, the seat part 3-1 is limited at the required height by the limiting part X, and the height adjustment of the seat part 3-1 is completed.
In conclusion, the invention adopts the crossed main body mechanism, the chair back and the seat frame can be separated or linked, so as to meet the requirements that the student chair for sitting and lying is telescopic, the feet are all placed on the ground when the student chair sits and lies, the height of the seat can be adjusted in a large range, the use is convenient, reliable and comfortable, safety measures are taken, and the like, so as to adapt to the characteristics that the classroom is crowded but is tidy, the height of the student is greatly different, and the like; the requirements of enlarging the height adjusting range of the seat and the angle adjusting range of the chair back of the office chair for sitting and lying are met. Therefore, conditions are created for popularization and proper and good afternoon nap implementation of schools and offices, and development, physical and mental health and learning of primary and secondary school students are served; creates conditions for proper and good afternoon nap modes of office workers such as teachers and the like, serves physical and mental health and work of the office workers such as teachers and the like, and serves for improving the utilization rate of office places.
Claims (10)
1. A main body structure of a sitting and lying dual-purpose student chair and a sitting and lying dual-purpose office chair is mainly composed of a sitting and lying switching frame component and a chair back component, and is characterized in that the sitting and lying switching frame component (1) mainly comprises an inclined piece component (1-1), a side piece (2-1), a seat piece (3-1) and a locking component (4-1), the inclined piece component (1-1) is composed of a transverse piece (1-1-1), a left inclined piece (2-1-1) and a right inclined piece (3-1-1), one end of the transverse piece (1-1-1) is fixedly connected with a proper position of the left inclined piece (2-1-1), the other end of the transverse piece (1-1-1) is fixedly connected with a proper position of the right inclined piece (3-1-1), the inclined component (1-1) is an inclined component I (I-1-1) and an inclined component II (II-1-1), the transverse component (1-1-1) is an inclined component I (1-I-1-1) and an inclined component II (1-II-1-1), the left inclined component (2-1-1) is a left inclined component I (2-I-1-1) and a left inclined component II (2-II-1-1), the right inclined component (3-1-1) is a right inclined component I (3-I-1-1) and a right inclined component II (3-II-1-1), one end of the transverse component I (1-I-1-1) is fixedly connected with a proper position of the left inclined component I (2-I-1-1), the other end of the transverse member I (1-I-1-1) is fixedly connected with a proper position of the right inclined member I (3-I-1-1) and forms the inclined member assembly I (I-1-1) by the other end, one end of the transverse member II (1-II-1-1) is fixedly connected with a proper position of the left inclined member II (2-II-1-1), the other end of the transverse member II (1-II-1-1) is fixedly connected with a proper position of the right inclined member II (3-II-1-1) and forms the inclined member assembly II (II-1-1) by the other end, the proper position of the left inclined member I (2-I-1-1) is rotatably connected with the proper position of the left inclined member II (2-II-1-1), the right inclined piece I (3-I-1-1) and the right inclined piece II (3-II-1-1) are rotatably connected at a proper position, the inclined piece assembly I (I-1-1) and the inclined piece assembly II (II-1-1) form a cross shape through the rotary connection, the side pieces (2-1) are a left side piece (Z-2-1) and a right side piece (Y-2-1), the side piece (2-1) consists of a front side piece (1-2-1) and a rear side piece (2-2-1), the front side piece (1-2-1) and the rear side piece (2-2-1) form a moving motion pair, and the left side piece (Z-2-1) consists of a front left side piece (1-Z-2-1) and a rear left side piece (2-1) -Z-2-1), said front left member (1-Z-2-1) and said rear left member (2-Z-2-1) forming a left shifting kinematic pair, said right member (Y-2-1) comprising a front right member (1-Y-2-1) and a rear right member (2-Y-2-1), said front right member (1-Y-2-1) and said rear right member (2-Y-2-1) forming a right shifting kinematic pair, one end of said rear left member (2-Z-2-1) and an upper end of said left ramp I (2-I-1-1) being pivotally connected, one end of said rear right member (2-Y-2-1) and an end of said right ramp I (3-I-1-1) being pivotally connected The upper end of the front left side part (1-Z-2-1) is rotatably connected with the upper end of the left inclined part II (2-II-1-1), one end of the front right side part (1-Y-2-1) is rotatably connected with the upper end of the right inclined part II (3-II-1-1), the inclined part assembly (1-1) and the side part (2-1) form a cross frame assembly (J), the left side of the seat part (3-1) is connected with the left side part (Z-2-1), the right side of the seat part (3-1) is connected with the right side part (Y-2-1), the locking assembly (4-1) is arranged at a proper position of the cross frame assembly (J), the chair back component (2) mainly comprises a back frame component (1-2) and a back rest component (2-2), the back frame component (1-2) comprises a back straight piece (1-1-2) and a back transverse piece (2-1-2), the back straight piece (1-1-2) comprises a left back straight piece (1-1-1-2) and a right back straight piece (2-1-1-2), one end of the back transverse piece (2-1-2) is fixedly connected to the proper position of the left back straight piece (1-1-1-2), the other end of the back transverse piece (2-1-2) is fixedly connected to the proper position of the right back straight piece (2-1-1-2), the back rest component (2-2) is connected to the back frame component (1-2), the chair back component (2) is connected to the proper position of the cross frame component (J).
2. The main structure of the chair for students and offices, as claimed in claim 1, wherein the locking assembly (4-1) is disposed at a proper position of the cross frame assembly (J) by: the locking member assembly (4-1) mainly comprises an upper moving member, a lower moving member and a locking member, one end of the upper moving member is connected to a proper position of the inclined member assembly I (I-1-1), one end of the lower moving member is connected to a proper position of the inclined member assembly II (II-1-1), the upper moving member is movably connected with the lower moving member, and the locking member is connected to the upper moving member and the lower moving member.
3. The main structure of the chair for students and offices, as claimed in claim 1, wherein the locking assembly (4-1) is disposed at a proper position of the cross frame assembly (J) by: the locking assembly (4-1) is a controllable gas spring assembly (K-4-1), the controllable gas spring assembly (K-4-1) is composed of a controllable gas spring rod small assembly (1-K-4-1), a connecting piece I (2-K-4-1), a connecting piece II (3-K-4-1) and a control button (4-K-4-1), the controllable gas spring rod small assembly (1-K-4-1) is composed of a sleeve piece (1-1-K-4-1) and a rod piece (2-1-K-4-1), the sleeve piece (1-1-K-4-1) and the rod piece (2-1-K-4-1) form a moving kinematic pair, one end of the controllable gas spring rod small component (1-K-4-1) is connected with the connecting piece I (2-K-4-1), the other end of the controllable gas spring rod small component (1-K-4-1) is connected with the connecting piece II (3-K-4-1), the connecting piece I (2-K-4-1) is connected to a proper position of the inclined piece component I (I-1-1), the connecting piece II (3-K-4-1) is connected to a proper position of the oblique piece component II (II-1-1), the control button (4-K-4-1) is arranged on a proper position of the sitting and lying switching frame component (1).
4. The main structure of the chair for students and offices, as claimed in claim 1, wherein the locking assembly (4-1) is disposed at a proper position of the cross frame assembly (J) by: the locking component (4-1) is a limiting piece which is fixedly connected with one side piece (2-1) of the front side piece (1-2-1) and the rear side piece (2-2-1) which form the moving kinematic pair, and the limiting piece is movably connected with the other side piece (2-1).
5. A main structure of a chair for students and offices, characterized in that, the chair back component (2) is connected to the cross frame component (J) at a proper position, which is realized by the following steps: the upper ends of the left straight back part (1-1-1-2) of the chair back part (2) and the left inclined part (2-1-1) of the cross frame component (J) are fixedly connected, and the upper ends of the right straight back part (2-1-1-2) of the chair back part (2) and the right inclined part (3-1-1) of the cross frame component (J) are fixedly connected.
6. A main structure of student chair for sitting and lying and office chair for sitting and lying according to claim 1, characterized in that the backrest part (2) is connected to the cross frame assembly (J) at a proper position by a fastening assembly (3-3): the upper ends of the left straight back part (1-1-1-2) of the chair back part (2) and the left inclined part I (2-I-1-1) of the cross frame component (J) are movably connected, the upper ends of the right straight back part (2-1-2) of the chair back part (2) and the right inclined part I (3-I-1-1) of the cross frame component (J) are movably connected, the fastening component (3-3) consists of a fastening component (1-3-3), a positioning pin (2-3-3), a positioning component (3-3-3) and an elastic component (4-3-3), the fastening component (3-3) is a left fastening component (Z-3-3) and a right fastening component (Y-3-3), the positioning parts (1-3-3) are a left positioning part (Z-1-3-3) and a right positioning part (Y-1-3-3), the positioning pins (2-3-3) are a left positioning pin (Z-2-3-3) and a right positioning pin (Y-2-3-3), the positioning parts (3-3-3) are a left positioning part (Z-3-3-3) and a right positioning part (Y-3-3-3), the elastic parts (4-3-3) are a left elastic part (Z-4-3-3) and a right elastic part (Y-4-3-3), and the left positioning part (Z-3-3) consists of the left positioning part (Z-1-3-3), A left positioning pin (Z-2-3-3), a left positioning piece (Z-3-3-3) and a left elastic piece (Z-4-3-3), wherein one end of the left positioning piece (Z-1-3-3) is rotatably connected to a proper position at the lower end of the left back straight piece (1-1-1-2) of the chair back component (2) through the left positioning pin (Z-2-3-3), the other end of the left fastening piece (Z-1-3-3) is provided with a positioning groove (C), the left positioning piece (Z-3-3-3) is fixedly connected to a proper position of the rear left side piece (2-Z-2-1) of the cross frame component (J), one end of the left elastic piece (Z-4-3-3) is connected to the left positioning piece (Z-1-3-3), the other end of the left elastic component (Z-4-3-3) is connected with the left positioning component (Z-3-3-3), the right fastening component (Y-3-3) consists of a right fastening component (Y-1-3-3), a right positioning pin (Y-2-3-3), a right positioning component (Y-3-3) and a right elastic component (Y-4-3-3), one end of the right fastening component (Y-1-3-3) is rotatably connected with the proper position at the lower end of the right straight component (2-1-1-2) of the chair back component (2) through the right positioning pin (Y-2-3-3), the other end of the right positioning piece (Y-1-3-3) is provided with a positioning groove (C), the right positioning piece (Y-3-3-3) is arranged at a proper position of the rear right piece (2-Y-2-1) of the cross frame assembly (J), one end of the right elastic piece (Y-4-3-3) is connected at a proper position of the right positioning piece (Y-1-3-3), and the other end of the right elastic piece (Y-4-3-3) is connected at the right positioning piece (Y-3-3).
7. The main structure of the chair for student and office in sitting and lying as claimed in claim 1, wherein the left and right inclined members (2-1-1, 3-1-1) are suitably non-linear.
8. The main structure of the chair for student and office in sitting and lying according to claim 1, wherein a buffer member (H) is disposed at a suitable position of the switching member (1).
9. The main structure of the chair for student and office use of sitting and lying as claimed in claim 1, wherein a position limiting member (X) and a plurality of position limiting holes (K) are disposed at suitable positions of the cross frame assembly (J).
10. The main structure of the chair for student and office in sitting and lying according to claim 1, wherein the inclined member assembly (1-1) is provided with a pulley (W) at a proper position of the lower part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010089539.4A CN111109907B (en) | 2020-01-18 | 2020-01-18 | Main structure of a dual-purpose student chair and a dual-purpose office chair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010089539.4A CN111109907B (en) | 2020-01-18 | 2020-01-18 | Main structure of a dual-purpose student chair and a dual-purpose office chair |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111109907A true CN111109907A (en) | 2020-05-08 |
| CN111109907B CN111109907B (en) | 2025-01-28 |
Family
ID=70491928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010089539.4A Active CN111109907B (en) | 2020-01-18 | 2020-01-18 | Main structure of a dual-purpose student chair and a dual-purpose office chair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111109907B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111728406A (en) * | 2020-07-08 | 2020-10-02 | 江山市奇栖正机电科技有限公司 | The back of a reclining chair for students |
| CN111904191A (en) * | 2020-08-20 | 2020-11-10 | 江山市奇栖正机电科技有限公司 | Linkage mechanism of seat back and seat |
| CN112493739A (en) * | 2020-12-31 | 2021-03-16 | 江山市奇栖正机电科技有限公司 | Main structure of sitting and lying seat |
| CN113229661A (en) * | 2021-06-17 | 2021-08-10 | 江山市奇栖正机电科技有限公司 | Chair that helping hand human body resets is lain and is held in palm |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE7531999U (en) * | 1975-10-08 | 1976-04-15 | Kurz Gmbh, 7120 Bietigheim | FURNITURE WITH HEIGHT-ADJUSTABLE SEAT PART |
| US20110049957A1 (en) * | 2009-11-13 | 2011-03-03 | Evan Luwisch | Chaise Lounge Having A Gas Cylinder |
| CN110279243A (en) * | 2019-07-10 | 2019-09-27 | 江山市奇栖正机电科技有限公司 | A kind of the lie seat of thing to sit on of seat is lain switching mechanism |
| CN110584362A (en) * | 2019-08-29 | 2019-12-20 | 江山市奇栖正机电科技有限公司 | Sitting and lying switching frame of sitting and lying seat |
| CN212995469U (en) * | 2020-01-18 | 2021-04-20 | 江山市奇栖正机电科技有限公司 | Main body structure of sitting and lying dual-purpose student chair and sitting and lying dual-purpose office chair |
-
2020
- 2020-01-18 CN CN202010089539.4A patent/CN111109907B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE7531999U (en) * | 1975-10-08 | 1976-04-15 | Kurz Gmbh, 7120 Bietigheim | FURNITURE WITH HEIGHT-ADJUSTABLE SEAT PART |
| US20110049957A1 (en) * | 2009-11-13 | 2011-03-03 | Evan Luwisch | Chaise Lounge Having A Gas Cylinder |
| CN110279243A (en) * | 2019-07-10 | 2019-09-27 | 江山市奇栖正机电科技有限公司 | A kind of the lie seat of thing to sit on of seat is lain switching mechanism |
| CN110584362A (en) * | 2019-08-29 | 2019-12-20 | 江山市奇栖正机电科技有限公司 | Sitting and lying switching frame of sitting and lying seat |
| CN212995469U (en) * | 2020-01-18 | 2021-04-20 | 江山市奇栖正机电科技有限公司 | Main body structure of sitting and lying dual-purpose student chair and sitting and lying dual-purpose office chair |
Non-Patent Citations (1)
| Title |
|---|
| 张鹏;: "明式交椅的历史演变解析", 家具与室内装饰, no. 12, 5 December 2013 (2013-12-05), pages 26 - 27 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111728406A (en) * | 2020-07-08 | 2020-10-02 | 江山市奇栖正机电科技有限公司 | The back of a reclining chair for students |
| CN111904191A (en) * | 2020-08-20 | 2020-11-10 | 江山市奇栖正机电科技有限公司 | Linkage mechanism of seat back and seat |
| CN112493739A (en) * | 2020-12-31 | 2021-03-16 | 江山市奇栖正机电科技有限公司 | Main structure of sitting and lying seat |
| CN113229661A (en) * | 2021-06-17 | 2021-08-10 | 江山市奇栖正机电科技有限公司 | Chair that helping hand human body resets is lain and is held in palm |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111109907B (en) | 2025-01-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111109907B (en) | Main structure of a dual-purpose student chair and a dual-purpose office chair | |
| CN202161000U (en) | Elastic leaning reset device for office chair lifting backrest | |
| JPH04367622A (en) | Sitting/erecting type chair | |
| CN215456709U (en) | Office chair seat capable of adjusting backrest gears | |
| CN212438005U (en) | Sofa stretching device capable of providing zero-gravity sitting feeling | |
| CN212995469U (en) | Main body structure of sitting and lying dual-purpose student chair and sitting and lying dual-purpose office chair | |
| CN112603044A (en) | School desk and chair integrated tool | |
| CN210842264U (en) | Sitting and lying switching mechanism of sitting and lying seat | |
| CN109757889B (en) | Main body structure of sitting and reclining chair and sitting and reclining sofa with movable locking device | |
| CN202714512U (en) | Office leisure chair | |
| CN109770593B (en) | Telescopic chair for sitting and lying | |
| CN112493739B (en) | Main structure of a sitting and lying seat | |
| CN214127732U (en) | Main structure of sitting and lying seat | |
| CN208709036U (en) | Telescopic dual purposes of sitting and lying office, learning chair | |
| CN210696744U (en) | Sitting and lying switching frame of sitting and lying seat | |
| CN202800776U (en) | Foldable deck chair | |
| CN110584362A (en) | Sitting and lying switching frame of sitting and lying seat | |
| CN209750403U (en) | Main body structure of sitting and lying chair and sitting and lying sofa with mobile locking device | |
| CN215076900U (en) | Folding lying chair | |
| WO2023061066A1 (en) | Seat | |
| CN111839060B (en) | A footrest device for sitting or lying down furniture with a parallelogram as the main structure | |
| CN106667101B (en) | Chair foot rest device | |
| CN101601541A (en) | A kind of general chair | |
| WO2021068065A1 (en) | Chair having tilting seat and back | |
| CN109567463B (en) | Multi-position seat foot rest device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20250103 Address after: Room 2A, No. 17, Huafu Street, Haiming Road, the Pearl River New Town, Tianhe District, Guangzhou, Guangdong 510665 Applicant after: Guangzhou Nanti Information Technology Co.,Ltd. Country or region after: China Address before: 324107 No. 7, Zhai Tang Lane, Yanling village, Shimen Town, Jiangshan City, Quzhou, Zhejiang Applicant before: JIANGSHAN QIQIZHENG ELECTROMECHANICAL TECHNOLOGY CO.,LTD. Country or region before: China |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |