CN105266382A - Multi-functional foldable table and chair - Google Patents

Multi-functional foldable table and chair Download PDF

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Publication number
CN105266382A
CN105266382A CN201410352372.0A CN201410352372A CN105266382A CN 105266382 A CN105266382 A CN 105266382A CN 201410352372 A CN201410352372 A CN 201410352372A CN 105266382 A CN105266382 A CN 105266382A
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China
Prior art keywords
ratchet
plate
chair
chairs
tables
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CN201410352372.0A
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Chinese (zh)
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CN105266382B (en
Inventor
郭柏林
王杰
郭杰
杨博文
刘丽珺
卢晓露
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Wuhan University of Technology WUT
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Wuhan University of Technology WUT
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Priority to CN201410352372.0A priority Critical patent/CN105266382B/en
Publication of CN105266382A publication Critical patent/CN105266382A/en
Application granted granted Critical
Publication of CN105266382B publication Critical patent/CN105266382B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The invention relates to a multi-functional foldable table and a multi-functional foldable chair which comprise a table top turnover mechanism, a six-rod shrinking mechanism, a table-chair leg rotary shrinking mechanism, a backrest ratchet wheel and pawl mechanism and a rotary clamping mechanism. Through simple deformation and combination, the multi-functional foldable table and chair provided by the invention realize common classroom usages including class attendance, course design, engineering graphic teaching and artistic drawing, increase utilization rate of classroom equipment, solve the problem about resource wasting and realize more rational utilization of school resources. Meanwhile, the work comprises functions such as drawing with drawing rule assistance, table top multi-angle overturning, chair top small-angle deflection positioning and overall shrinking folding. The multi-functional foldable table and chair can increase students' drawing efficiency and make the students' drawing more convenient.

Description

Multifunctional foldable tables and chairs
Technical field
The present invention relates to a kind of tables and chairs, more particularly, relate to a kind of multifunctional foldable tables and chairs.
Background technology
The tables and chairs of current domestic University Classroom's still have deficiency, are mainly manifested in:
(1) the tables and chairs utilization rate in the Course Exercise classroom such as existing Machine Design, theory of mechanics is low.The tables and chairs majority in Course Exercise classroom is idle useless at ordinary times, only have at the beginning of term, last Course Exercise time just can use, this situation causes the very large wasting of resources.
(2) the tables and chairs function in existing course design classroom is relatively single, just uses for Course Exercise drawing classroom.And these tables and chairs can not meet the drawing requirements of student well, turning operation is complicated, and angular adjustment inconvenience, does not well improve the drawing efficiency of student.
(3) tables and chairs in classroom, great majority are all very heavy, can not fold, and take up room large, are unfavorable for storing carrying, are also unfavorable for that student carries out other extracurricular activities in classroom.
(4) because a lot of colleges and universities attend class apart from each other with the place of having a rest, student utilizes existing tables and chairs can not lunch break well.Thus, school table chair can also have greatly improved in functions expanding.
Summary of the invention
The technical problem to be solved in the present invention is, provides a kind of multifunctional foldable tables and chairs.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of multifunctional foldable tables and chairs, comprises table top turnover mechanism, six bar contracting mechanisms, tables and chairs leg rotating shrinking mechanism, chair back ratchet and pawl arrangement and rotates clamping mechanism;
Described table top turnover mechanism comprises ratchet thin plate, trough of belt baffle plate, ratchet and pin; Ratchet thin plate and trough of belt baffle plate are fitted, and the pin on ratchet thin plate, just through the mounting hole of trough of belt baffle plate, produces frictional force; Ratchet thin plate lower tooth contacts with ratchet all the time, and ratchet is all the time in the deep-slotted chip breaker of trough of belt baffle plate;
Six described bar contracting mechanisms comprise parallel four Bian Hang mechanisms and click reduction support bar below, described parallel-crank mechanism comprises table frame, table lower support, connecting plate and drawer connecting plate, and described click reduction support bar comprises upper connecting rod, lower link, limited block and reach rod jaw; Table lower support and drawer connecting plate are hinged with table frame respectively, connect with connecting plate; Upper connecting rod top is connected with drawer connecting plate, and lower link top is connected with lower link bottom, and bottom is connected with below table frame; Reach rod jaw, in the inside grooves of upper connecting rod, engages with the internal tooth of lower link; Limited block, in lower link lower end, is fitted with lower link surface;
Described tables and chairs leg rotating shrinking mechanism comprises fixed disk, thrust spring, steel ball, rolling disc and vertical shaft; Vertical shaft runs through and is connected and fixed dish and rolling disc, and thrust spring is inner at fixed disk, has steel ball to contact with rolling disc below;
Described chair back ratchet and pawl arrangement comprises ratchet wheel plate, ratchet, a set of cups, thrust spring, support and connecting plate; Pawl bar is through a set of cups, and front end is engaged with the tooth on ratchet wheel plate, and rear end is connected with connecting plate; A set of cups is connected with support, and thrust spring therein;
Described rotation clamping mechanism comprises seat lower supporting plate, a set of cups, thrust spring and pawl bar; The front end of pawl bar contacts with the spacing hole of seat lower supporting plate, and rear end is inner at a set of cups, and thrust spring is outside at pawl bar.
In such scheme, also comprise aided drawing device, described aided drawing device comprises guide rail, T-square and thumbscrew, described T-square is placed on chart board, fit below guide rail and T-square edge, chart board, described thumbscrew, on guide rail, is fitted with chart board.
Implement multifunctional foldable tables and chairs of the present invention, there is following beneficial effect:
Multifunctional foldable tables and chairs of the present invention by being out of shape simply, combine make classroom realize common attending class, Course Exercise, work figure teaching, these four kinds of purposes of art drawing, improve the utilization rate of classroom furniture, solve problem of resource waste, make the resource more rational utilization of school.The functions such as meanwhile, these works have drawing rule aided drawing, table Multi-angle turnover, and seat small angle deflection is located, and overall shrinkage is folding.Can improve the drawing efficiency of student, the drawing for student provides convenient.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is for attending class with tables and chairs overall structure schematic diagram;
Fig. 2 is art desk chair overall structure schematic diagram;
Fig. 3 is Course Exercise work figure tables and chairs overall structure schematic diagram;
Fig. 4 is lunch break tables and chairs overall structure schematic diagram;
Fig. 5 is tables and chairs folding shrinking overall structure schematic diagram;
Fig. 6 is the schematic diagram of table top turnover mechanism;
Fig. 7 is the schematic diagram of chair back ratchet and pawl arrangement;
Fig. 8 is the schematic diagram of click reduction support bar.
Detailed description of the invention
In order to there be understanding clearly to technical characteristic of the present invention, object and effect, now contrast accompanying drawing and describe the specific embodiment of the present invention in detail.
As Figure 1-Figure 8, foldable multifunctional tables and chairs of the present invention, comprise table top turnover mechanism, six bar contracting mechanisms, tables and chairs leg rotating shrinking mechanism, chair back ratchet and pawl arrangement, rotate clamping mechanism, aided drawing device.
Table top turnover mechanism comprises ratchet thin plate 15, trough of belt baffle plate 14, ratchet 16 and pin 17; Six bar contracting mechanisms comprise parallel four Bian Hang mechanisms and click reduction support bar below, parallel-crank mechanism is made up of table frame 4, table lower support 1, connecting plate 2 and drawer connecting plate 3, and click reduction support bar is made up of upper connecting rod 5, lower link 8, limited block 7 and reach rod jaw 6; Tables and chairs leg rotating shrinking mechanism comprises fixed disk 9, thrust spring 11, steel ball 12, rolling disc 10 and vertical shaft 13; Chair back ratchet and pawl arrangement comprises ratchet wheel plate 23, ratchet 22, a set of cups 21, thrust spring 20, support 19 and connecting plate 18; Rotate clamping mechanism and comprise seat lower supporting plate 24, a set of cups 25, thrust spring 26 and pawl bar 27; Aided drawing device comprises guide rail 30, T-square 29 and thumbscrew.
These tables and chairs have used table click switching mechanism, six bars shrink fold mechanism, rotation positioning device, rotation clamping mechanism, chair back click switching mechanism etc., achieve the innovation of each several part mechanism.
The Multi-angle turnover location of table click switching mechanism, Rapid reset, make the angular adjustment of table convenient.Six bars shrink the combined type design of fold mechanisms, table frame are shunk simple, press down the overall shrinkage that just can realize table frame after only needing table to lift.The rotation that rotation positioning device achieves table leg and chair leg is shunk.Rotate after seat can be adjusted to certain angle by clamping mechanism and locate, make it to coordinate mutually with tabletop angles, also can realize the folding shrinking of chair simultaneously.Chair back click switching mechanism utilizes the distortion of ratchet, realizes the different requirements of chair back upset, thus realizes the conversion of various pattern.
Assembling mechanism of the present invention, fold mechanism, switching mechanism and detent mechanism combine, and achieve the integrated innovation that tables and chairs gather multi-function in integral whole.
(1) gather multi-function in integral whole: common classroom of giving lessons, Course Exercise work figure classroom, fine arts drawing classroom can be applied to, well solve the problem of classroom resources utilization rate.
(2) these tables and chairs can be deformed into arm-chair, facilitate noon break of student.Tables and chairs folding shrinking is got up, saves space, facilitate student to hold activity in classroom.
(3) conversion operations of the various pattern of tables and chairs is simple and convenient, and stability is high.
(4) detachable aided drawing chi, makes drawing convenient and swift, improves the drawing efficiency of student.
(5) adjustable design, carries out adaptability adjustment to tables and chairs, more hommization, provides very large facility to Students ' Learning.
By reference to the accompanying drawings embodiments of the invention are described above; but the present invention is not limited to above-mentioned detailed description of the invention; above-mentioned detailed description of the invention is only schematic; instead of it is restrictive; those of ordinary skill in the art is under enlightenment of the present invention; do not departing under the ambit that present inventive concept and claim protect, also can make a lot of form, these all belong within protection of the present invention.

Claims (2)

1. multifunctional foldable tables and chairs, is characterized in that, comprise table top turnover mechanism, six bar contracting mechanisms, tables and chairs leg rotating shrinking mechanism, chair back ratchet and pawl arrangement and rotate clamping mechanism;
Described table top turnover mechanism comprises ratchet thin plate, trough of belt baffle plate, ratchet and pin; Ratchet thin plate and trough of belt baffle plate are fitted, and the pin on ratchet thin plate, just through the mounting hole of trough of belt baffle plate, produces frictional force; Ratchet thin plate lower tooth contacts with ratchet all the time, and ratchet is all the time in the deep-slotted chip breaker of trough of belt baffle plate;
Six described bar contracting mechanisms comprise parallel four Bian Hang mechanisms and click reduction support bar below, described parallel-crank mechanism comprises table frame, table lower support, connecting plate and drawer connecting plate, and described click reduction support bar comprises upper connecting rod, lower link, limited block and reach rod jaw; Table lower support and drawer connecting plate are hinged with table frame respectively, connect with connecting plate; Upper connecting rod top is connected with drawer connecting plate, and lower link top is connected with lower link bottom, and bottom is connected with below table frame; Reach rod jaw, in the inside grooves of upper connecting rod, engages with the internal tooth of lower link; Limited block, in lower link lower end, is fitted with lower link surface;
Described tables and chairs leg rotating shrinking mechanism comprises fixed disk, thrust spring, steel ball, rolling disc and vertical shaft; Vertical shaft runs through and is connected and fixed dish and rolling disc, and thrust spring is inner at fixed disk, has steel ball to contact with rolling disc below;
Described chair back ratchet and pawl arrangement comprises ratchet wheel plate, ratchet, a set of cups, thrust spring, support and connecting plate; Pawl bar is through a set of cups, and front end is engaged with the tooth on ratchet wheel plate, and rear end is connected with connecting plate; A set of cups is connected with support, and thrust spring therein;
Described rotation clamping mechanism comprises seat lower supporting plate, a set of cups, thrust spring and pawl bar; The front end of pawl bar contacts with the spacing hole of seat lower supporting plate, and rear end is inner at a set of cups, and thrust spring is outside at pawl bar.
2. multifunctional foldable tables and chairs according to claim 1, it is characterized in that, also comprise aided drawing device, described aided drawing device comprises guide rail, T-square and thumbscrew, described T-square is placed on chart board, fit below guide rail and T-square edge, chart board, described thumbscrew, on guide rail, is fitted with chart board.
CN201410352372.0A 2014-07-23 2014-07-23 Multifunctional foldable tables and chairs Expired - Fee Related CN105266382B (en)

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CN201410352372.0A CN105266382B (en) 2014-07-23 2014-07-23 Multifunctional foldable tables and chairs

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CN201410352372.0A CN105266382B (en) 2014-07-23 2014-07-23 Multifunctional foldable tables and chairs

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CN105266382A true CN105266382A (en) 2016-01-27
CN105266382B CN105266382B (en) 2018-06-12

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106235650A (en) * 2016-08-25 2016-12-21 佛山市亚贝尔自动化设备有限公司 A kind of dual-purpose chair and desk for pupils
CN108041832A (en) * 2017-12-07 2018-05-18 梁辰 A kind of folding integrated type chair and desk for pupils

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2881054B2 (en) * 1991-09-25 1999-04-12 松下電工株式会社 Workbench
CN2666263Y (en) * 2003-12-01 2004-12-29 黄伟 Multifunction school desk and chair combination
CN201070112Y (en) * 2007-09-03 2008-06-11 陈德昌 Folding desk frame
CN201595375U (en) * 2009-11-30 2010-10-06 王志涛 Portable folding desk and chair for students
CN203676465U (en) * 2014-01-24 2014-07-02 江西理工大学 Portable multifunctional desk integrating table with chair

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2881054B2 (en) * 1991-09-25 1999-04-12 松下電工株式会社 Workbench
CN2666263Y (en) * 2003-12-01 2004-12-29 黄伟 Multifunction school desk and chair combination
CN201070112Y (en) * 2007-09-03 2008-06-11 陈德昌 Folding desk frame
CN201595375U (en) * 2009-11-30 2010-10-06 王志涛 Portable folding desk and chair for students
CN203676465U (en) * 2014-01-24 2014-07-02 江西理工大学 Portable multifunctional desk integrating table with chair

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106235650A (en) * 2016-08-25 2016-12-21 佛山市亚贝尔自动化设备有限公司 A kind of dual-purpose chair and desk for pupils
CN108041832A (en) * 2017-12-07 2018-05-18 梁辰 A kind of folding integrated type chair and desk for pupils

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