CN105708129B - The convertible round table of Desktop Dimensions - Google Patents

The convertible round table of Desktop Dimensions Download PDF

Info

Publication number
CN105708129B
CN105708129B CN201610192820.4A CN201610192820A CN105708129B CN 105708129 B CN105708129 B CN 105708129B CN 201610192820 A CN201610192820 A CN 201610192820A CN 105708129 B CN105708129 B CN 105708129B
Authority
CN
China
Prior art keywords
desktop
pieces
sensation
roots
cam
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.)
Active
Application number
CN201610192820.4A
Other languages
Chinese (zh)
Other versions
CN105708129A (en
Inventor
戴宁
刘盛贤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Institute of Architectural Technology
Original Assignee
Jiangsu Institute of Architectural Technology
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jiangsu Institute of Architectural Technology filed Critical Jiangsu Institute of Architectural Technology
Priority to CN201610192820.4A priority Critical patent/CN105708129B/en
Publication of CN105708129A publication Critical patent/CN105708129A/en
Application granted granted Critical
Publication of CN105708129B publication Critical patent/CN105708129B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B1/00—Extensible tables
    • A47B1/02—Extensible tables with insertable leaves arranged in the centre and fixed frames
    • A47B1/03—Extensible tables with insertable leaves arranged in the centre and fixed frames the leaves being foldable or revolvable
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B1/00—Extensible tables
    • A47B1/04—Extensible tables with supplementary leaves or drop leaves arranged at the periphery
    • A47B1/05—Extensible tables with supplementary leaves or drop leaves arranged at the periphery the leaves being extensible by drawing-out
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B1/00—Extensible tables
    • A47B1/04—Extensible tables with supplementary leaves or drop leaves arranged at the periphery
    • A47B1/05—Extensible tables with supplementary leaves or drop leaves arranged at the periphery the leaves being extensible by drawing-out
    • A47B1/056—Extensible tables with supplementary leaves or drop leaves arranged at the periphery the leaves being extensible by drawing-out the leaves forming an outer ring
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B1/00—Extensible tables
    • A47B1/08—Extensible tables with extensible frames or with additional legs
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B13/00—Details of tables or desks
    • A47B13/08—Table tops; Rims therefor
    • A47B13/10—Tops characterised by shape, other than circular or rectangular

Landscapes

  • Transmission Devices (AREA)

Abstract

The invention discloses a kind of convertible round table of Desktop Dimensions, including the tabletop section being made up of six pieces of pentagon desktops, one piece of positive dodecagon desktop and six pieces of fan-shaped desktops, and the switching mechanism for making tabletop section carry out size conversion；It is made up of when being converted to large table surface three parts individual layer, it is six pieces of pentagon desktops arrangement alternate with six pieces of fan-shaped desktops positioned at 12 jiaos of one piece of center desktop of center, six pieces of pentagon desktops positioned at marginal position and six pieces of fan-shaped desktops positioned at marginal position respectively；Desktop forms after being shunk by six pieces of fan-shaped desktops when being converted to small table surface, positioned at top layer；Six pieces of pentagon desktops drop to intermediate layer, and are punctured into sexfoil, and 12 jiaos of center desktop is located at bottom.Desktop of the present invention can be with two kinds of sizes of transform size, and the conversion of size of desktop is realized by non-conterminous two pieces of sectors on people's rotary desktop, simple to operate, can solve at least two groups of human needs in library, meeting room, family.

Description

The convertible round table of Desktop Dimensions
Technical field
It the utility model is related to a kind of library science and commonly use desk, specifically a kind of convertible round table of Desktop Dimensions, category In technical field of furniture.
Background technology
Round table is all applied in library, meeting room, dining room, family.Existing table top of round table size mostly be it is constant, The round table that some families use is foldable to square table, realizes from large to small, when returning again to the part of folding, realizes by small change Greatly, the conversion of relatively larger round table and relatively smaller square table is realized.Also rectangle square table is transformed to square side Table, it is smaller rectangle square table when people is few, larger square square table is transformed to when people is more.
At present, do not change from small to big also or round table from large to small, it is small round table that desktop is wished when less than 6 people, when It is big round table that desktop is wished during close to 12 people, and study or dining of at least two groups people etc. can be met by so possessing a desk Need.
The content of the invention
In view of the above-mentioned problems of the prior art, the utility model provides a kind of convertible round table of Desktop Dimensions, table The variable round table of face size, desktop is smaller round table when less than 6 people, and desktop is larger circle when close to 12 people Table, the conversion of size of desktop is realized by non-conterminous two pieces of sectors on people's rotary desktop, convenient and practical, can solve books At least two groups of human needs in shop, meeting room, dining room, family.
To achieve these goals, the technical solution adopted in the utility model is：A kind of convertible round table of Desktop Dimensions, Including the tabletop section being made up of six pieces of pentagon desktops, one piece of positive dodecagon desktop and six pieces of fan-shaped desktops, and make table Face part carries out the switching mechanism of size conversion；It is made up of when being converted to large table surface three parts individual layer, is to be located at centre bit respectively 12 jiaos of one piece of center desktop, six pieces of pentagon desktops positioned at marginal position and the six pieces of fan-shaped tables positioned at marginal position put Face, six pieces of pentagon desktops arrangement alternate with six pieces of fan-shaped desktops；Desktop is shunk by six pieces of fan-shaped desktops when being converted to small table surface After form, positioned at top layer；Six pieces of pentagon desktops drop to intermediate layer, and are punctured into sexfoil, and 12 jiaos of center desktop is located at Bottom.
The utility model is further, and the switching mechanism inside contracts abduction mechanism, six pieces of fans including six pieces of pentagon desktops Shape desktop inside contracts abduction mechanism, positive dodecagon desktop lifting mechanism, and pentagon desktop lifting mechanism.
The utility model is further, and described six pieces of pentagon desktops inside contract abduction mechanism, including the first planetary gear, the One rope sheave, the first centre wheel, the supporting beam assembly of the six roots of sensation first, steel cable, first connecting rod, six the first outer rope sheaves, six The first outer Assembly of pin of root, pentagon glide path, six roots of sensation pentagon external support axle, the outer rope sheave bearing pin of the six roots of sensation, six Steel wire rope locks Block, support shaft, wire rope guide wheel and the first pilot pin in six roots of sensation pentagon；The bottom surface of six pieces of pentagon desktops is fixedly mounted Pentagon glide path；Support shaft is respectively and fixedly installed to the six roots of sensation in described six roots of sensation pentagon external support axle, six roots of sensation pentagon In the hole of one supporting beam assembly, the cylinder of support shaft upper end can in described six roots of sensation pentagon external support axle and six roots of sensation pentagon Radially slided in pentagon glide path, described six the first outer rope sheaves are supported by rope sheave bearing pin outside the six roots of sensation and the six roots of sensation first Beam assembly is connected, and described steel cable is arranged on six the first outer rope sheaves, the inner fixed peace of described first connecting rod On steel cable, outer end be connected to six pieces it is pentagonal below；Six described steel wire rope pintle hook locks are by six first Inner locked on steel cable, the described wire rope guide wheel and the first pilot pin collective effect of connecting rod, makes first steel The respective backbar that cord supports beam assembly along the six roots of sensation first is longitudinally arranged, the first described planetary gear and the first centre wheel phase Engagement, the first planetary gear and the first rope sheave are arranged on the six roots of sensation first by bearing pin and supported on beam assembly.
The utility model is further, and described six pieces of fan-shaped desktops inside contract abduction mechanism, including six roots of sensation sector desktop moves Dynamic guide groove, second connecting rod, six the second outer rope sheaves, the second outer bearing pin of the six roots of sensation, six locking pins, the second rope sheave, the second centre wheel, The outer rope sheave bearing pin of the six roots of sensation, six roots of sensation sector external support axle, six steel wire rope pintle hook locks, support shaft in six roots of sensation sector, second steel wire rope, Second supporting beam assembly, the second pilot pin, the second planetary gear and the second rope guide sleeve；Six pieces of described fan-shaped bottom surfaces are fixed Six roots of sensation sector desktop movement guide groove is installed, support shaft is fixedly mounted respectively in described six roots of sensation sector external support axle, six roots of sensation sector In the hole that the six roots of sensation second supports beam assembly, support shaft upper end in the cylinder of six roots of sensation sector external support axle upper end, six roots of sensation sector Cylinder can six roots of sensation sector desktop move guide groove in radially slide, described six the second outer rope sheaves by the six roots of sensation second outside Bearing pin supports beam assembly with the six roots of sensation second respectively and is connected, and described second steel wire rope is arranged on six the second rope sheaves；It is described The inner of second connecting rod be fixedly mounted on second steel wire rope, outer end is connected to below six pieces of sectors；Described six Steel wire rope pintle hook lock is by inner locked on second steel wire rope, the second described rope guide sleeve and second of six second connecting rods Pilot pin collective effect, second steel wire rope is supported the respective backbar of beam assembly along the six roots of sensation second and be longitudinally arranged, it is described Second planetary gear is meshed with the second centre wheel, and the second planetary gear and the second rope sheave are arranged on the backbar of the six roots of sensation second by bearing pin On component.
The utility model is further, described positive dodecagon desktop lifting mechanism, including clutch disk, and first is left convex Race, the first cam pack, positive 12 jiaos of desktop fulcrums, desktop chassis, the first right cam path, lower axle guide pin bushing, tibet cinnamon bark plate are interior Axle sleeve, thrust bearing, two first backbar bearing pins, adapter sleeve, two split pins, cam path connecting bolt and nut assembly, Two first cam bearing pins；Described positive dodecagon desktop is fixedly connected with clutch disk, and described adapter sleeve is welded on company Connect on disk, positive 12 jiaos of desktop fulcrums are fixedly connected by described two split pins with adapter sleeve, described two first Bolster bearing pin makes internal axle sleeve and positive 12 jiaos in the axial groove G1 of internal axle sleeve, in the axial groove G2 of positive 12 jiaos of desktop fulcrums Moved to axial during desktop fulcrum, described two first cam bearing pins are by the first cam pack and positive 12 jiaos of tables Face fulcrum is fixedly connected；The roller of the first described cam pack left end is in the first left cam path, the first cam pack right-hand member Roller in the first right cam path；The first described left cam path passes through cam path connecting bolt and nut assembly and desktop bottom Frame is fixedly connected, and the described first right cam path is fixedly connected by cam path connecting bolt with nut assembly with desktop chassis, Described positive 12 jiaos of desktop fulcrums are connected with lower axle guide pin bushing, installed thrust between described positive 12 jiaos of desktop fulcrums and ground Bearing, opens three uniform axial groove G3 on described lower axle guide pin bushing, and the inner insertion three of described tibet cinnamon bark plate is uniform Axial groove G3 innner and outers end contacts with desktop chassis, is positioned lower axle guide pin bushing；Described positive dodecagon desktop is relative to table The central axis in face can relatively rotate, and the first left cam path, the first right cam path constraint under do and move to axial It is dynamic.
The utility model is further, described pentagon desktop lifting mechanism, including the supporting beam assembly of the six roots of sensation first, and ten Two jiaos of desktop fulcrums, desktop bottom annulus frame, lower axle guide pin bushing, tibet cinnamon bark plate, the second left cam path, the second cam pack, second Right cam path, internal axle sleeve, thrust bearing, the first block set, two first backbar bearing pins, pentagon desktop Assembly of pin, cam Groove connecting bolt and nut assembly, two second cam bearing pins；Six pieces of described pentagon desktops pass through pentagon desktop bearing pin Component supports beam assembly with the six roots of sensation first and is connected；Two described first backbar bearing pins support the first block set, the six roots of sensation first Beam assembly, 12 jiaos of desktop fulcrums and internal axle sleeve connect；Two described first backbar bearing pins are in the axial direction of internal axle sleeve In groove G1, the axial groove G2 of positive 12 jiaos of desktop fulcrums and the first block set hole, while supported in the six roots of sensation first in beam assembly In the hole at end, moved to axial when rotating internal axle sleeve, positive 12 jiaos of desktop fulcrums, six pieces of pentagon desktops；Described Second cam pack is fixedly connected by two second cam bearing pins with internal axle sleeve, and the roller of the second described cam pack left end exists In second left cam path, the roller of the second described cam pack right-hand member is in the second right cam path, the described second left cam Groove is fixedly connected by cam path connecting bolt with nut assembly with desktop chassis, and the described second right cam path passes through cam path Connecting bolt is fixedly connected with nut assembly with desktop chassis, described six pieces of uniform pentagons relative to desktop central axis Can relatively rotate and the second left cam path, the second right cam path constraint under can move to axial.
The utility model is further, and described six pieces of fan-shaped desktops pass through fan-shaped desktop Assembly of pin and the second backbar Component is connected, and the described second supporting beam assembly is fixedly connected by 12 backbar bearing pins with the second block set, and described the Two block sets are connected with the second centre wheel, and when desktop is changed into small size desktop from large scale desktop, fan-shaped desktop rotates, and inwardly does Move radially；When desktop is changed into large scale desktop from small size desktop, fan-shaped desktop rotates, and outwards radially moves.
The utility model is further, there is two groups of constraint bracket components in the second described centre wheel vertical direction, bag Include gear constraint bearing, gear constraint is with right support and gear constraint left socle；The second described centre wheel by gear about Beam bearings, described gear constraint are supported with right support by gear constraint with bearing with gear constraint with left socle, institute The gear constraint stated is fixedly connected with left socle by two left socle attachment screws with desktop bottom annulus frame, described gear Constraint is fixedly connected with right support by two right support attachment screws with desktop bottom annulus frame, and described two right supports connect Screw is connect with two pieces of right support contiguous blocks to be threadedly coupled, described two left socle attachment screws, two pieces of left socle contiguous blocks For threaded connection.
The utility model is further, is additionally provided with rotation and is changed with the second centre wheel during lifting and the first centre wheel sound Mechanism, the mechanism include cam ring, interior roller bearing pin, interior roller, three axostylus axostyles, outer roller bearing pin, outer roller, external cam, evagination Wheeling support, associate bearing pin, gear pole and external cam positioning sleeve；Described gear pole by gear connect first bearing pin, Gear connect second bearing pin be fixedly connected on the second centre wheel, described gear pole by associate bearing pin and three axostylus axostyles with Revolute pair is connected, and three described axostylus axostyles are pacified by roller in the installation of interior roller bearing pin, three described axostylus axostyles by outer roller bearing pin The outer roller of dress, described cam ring are connected by the 4th backbar of the first bearing pin that cam ring connects and beam 2, and described is interior Cam is connected by the 5th backbar of the second bearing pin that cam ring connects and beam 2, circular arc of the described interior roller in cam ring Part, described outer roller is in the T2 grooves of external cam, and it is outside that described evagination wheeling support, which is welded on external cam, and described determines Position frame connecting bolt is connected spiral shell through the hole on external cam positioning sleeve, the hole in external cam, the hole on desktop chassis with locating rack Mother jointly fixes external cam；When the second supporting beam assembly 30 rotates clockwise in 0 ° to 107 ° of section, described second Centre wheel remains static；When the second supporting beam assembly rotates clockwise in 107 ° to 137 ° of section, on cam ring Groove T1 promote in roller, outer roller leaves the groove T2 of external cam, passes through three axostylus axostyles, association bearing pin, gear pole, gear connection the A piece bearing pin, gear connect second bearing pin and drive the second centre wheel to rotate clockwise, the second described centre wheel and second Bolster component synchronization rotates；When the second centre wheel remains static, corresponding six pieces of pentagon desktops, six pieces of fan-shaped desktops to The external expansion of desktop-centric, when the second centre wheel, which is in, rotates clockwise state, positive dodecagon desktop rises two desktops Highly, six pieces of pentagon desktops rise a height of table top, when section inverse time of the second supporting beam assembly 30 at 137 ° to 107 ° When pin rotates, described interior roller is in the groove T1 of cam ring, and outer roller is on the circular arc of external cam, the second described centre wheel In synchronous axial system state counterclockwise, corresponding positive dodecagon declines two height of table top, and six pieces of pentagon desktops decline one Height of table top, when the second supporting beam assembly 30 rotates counterclockwise in 107 ° to 0 ° of section, described outer roller enters evagination In the groove T2 of wheel, described interior roller enters on the circular arc of cam ring, and the second centre wheel is locked, corresponding six pieces of pentagon tables Face, six pieces of fan-shaped desktops shrink to desktop-centric.
The utility model is further, and the first described cam pack includes two first roller bearing pins, two first Bar, the first block set, the first seat cushion, bearing pin in two first, the first roller, 12 jiaos of desktop fulcrums, two first cam bearing pins, The first described roller and the first roller bearing pin are rotation connection, and the first described roller bearing pin is fixedly mounted on the first pole Kong Zhong, the outer end of bearing pin is fixedly mounted in the hole of the first pole in described first, and the inner of bearing pin is consolidated in described first Dingan County is in the hole of the first seat cushion, and the first described seat cushion is fixedly mounted in the hole of the first block set, the first described block set It is fixedly connected by the first cam bearing pin with 12 jiaos of desktop fulcrums.
Compared with prior art, the utility model size of desktop can be changed as needed, and desktop is large scale table During face, desktop is made up of 13 blocks of plates altogether, and middle one piece is dodecagon, can lift 2 height of table top in height, this When in a high position；Edge is uniformly distributed 6 pieces of pentagon plate faces, 1 height of table top can be lifted in height, now in a high position；Edge 6 pieces of fan-shaped plate faces are also uniformly distributed, height does not change；Each pentagon plate face arrangement alternate with each fan-shaped plate face.When Desktop from large scale desktop be changed into small size desktop when, both hands are held similar two pieces of fan-shaped desktops and rotated counterclockwise, now, Positive dodecagon, 6 pieces of pentagons and 6 pieces of fan-shaped synchronous axial systems, corner is identical, in the range of corner is from 0 ° to 30 °, positive 12 2 height of table top of angular decline, 6 pieces of pentagons decline 1 height of table top, and 6 pieces of sectors do not decline；In corner from 30 ° to 137 ° In the range of, positive dodecagon and 6 pieces of pentagons are only rotated and not declined, and 6 pieces of pentagons move in intermediate layer to center, finally Sexfoil is formed, 6 pieces of sectors move in top to center, ultimately form approximate detachable round tabletop.When desktop becomes from small size desktop For large scale desktop when, both hands are held similar two pieces of fan-shaped desktops and rotated clockwise, now, positive dodecagon, 6 pieces five jiaos Shape rotates simultaneously with 6 pieces of sectors, and corner is identical, and in the range of corner is from 0 ° to 107 °, 6 pieces of sectors are synchronous with 6 pieces of pentagons Edge expands outward to large scale desktop respectively through the line of symmetry in the center of circle, in the range of corner is from 107 ° to 137 °, positive ten Lune rises 2 height of table top, and 6 pieces of pentagons rise 1 height of table top, and a complete desktop is formed.Therefore when less than 6 During people, small table surface use can be converted to, desktop can be converted to larger round table, the change of size of desktop when close to 12 people Change by non-conterminous two pieces on people's rotary desktop fan-shaped realizations, can solve in library, meeting room, dining room, family extremely Few two groups of human needs.
Brief description of the drawings
Fig. 1 is the top view for the large table surface size that two kinds of Desktop Dimensions of the present utility model are freely changed；
Fig. 2 is the top view for the small table surface size that two kinds of Desktop Dimensions are freely changed；
Fig. 3 is the top view that six pieces of pentagon desktops are shrunk to sexfoil in two kinds of Desktop Dimensions；
Fig. 4 is the top view of positive dodecagon desktop in two kinds of Desktop Dimensions；
Fig. 5 is the top view that six pieces of pentagon desktops inside contract abduction mechanism in two kinds of Desktop Dimensions；
Fig. 6 is the mechanism principle figure that six pieces of pentagon desktops inside contract abduction transmission in two kinds of Desktop Dimensions；
Fig. 7 is the mechanism principle figure that six pieces of fan-shaped desktops inside contract abduction transmission in two kinds of Desktop Dimensions；
Fig. 8 is the top view that six pieces of fan-shaped desktops inside contract abduction mechanism in two kinds of Desktop Dimensions；
Fig. 9 is that 12 jiaos of the center desktop of two kinds of Desktop Dimensions lifts the front view of two desktop thickness；
Figure 10 is the front view that six pieces of uniform pentagons lift a desktop thickness in two kinds of Desktop Dimensions；
Figure 11 is the front view of six pieces of fan-shaped desktop support parts in two kinds of Desktop Dimensions；
Figure 12 is three groups of desktop displacements and the front view of two groups of lifter cam mechanisms and frame in two kinds of Desktop Dimensions；
Figure 13 is that the second centre wheel obtains the front view of two bracket component constraints in vertical direction in two kinds of Desktop Dimensions；
Figure 14 is that the second centre wheel obtains the B-B rotations of two bracket component constraints in vertical direction in two kinds of Desktop Dimensions 90 ° of views；
Figure 15 is two pack supports and the top view of two sets of Planetary Gear Transmission phase relations in two kinds of Desktop Dimensions；
Figure 16 a are the front views of the backbar contiguous block of beam one first, and Figure 16 b are the left views of the backbar contiguous block of beam one first Figure, Figure 16 c are the top views of the backbar contiguous block of beam one first；
Figure 17 a are the front views of the first block set part, and Figure 17 b are the top views of the first block set part；
Figure 18 a are the front views of gangbar, and Figure 18 b are the left views of gangbar；
Figure 19 a are the front views of the contiguous block of beam two, and Figure 19 b are the left views of the contiguous block of beam two, and Figure 19 c are the contiguous blocks of beam two Top view；
Figure 20 is the six roots of sensation backbar of beam one, the backbar inner sleeve of beam one first, the backbar guide pin of beam one first, beam The component drawings of one first backbar guide sleeve；
Figure 21 is the part drawing of the first rope guide sleeve；
Figure 22 is the part drawing of the second rope guide sleeve；
Figure 23 is the front view of the first cam pack；
Figure 24 is the top view of the first cam pack；
Figure 25 is the front view of the second cam pack；
Figure 26 is the top view of the second cam pack；
Figure 27 is the front view of arc-shaped cam component；
Figure 28 is the top view of arc-shaped cam component；
Figure 29 is Figure 27 middle sections A-A view；
Figure 30 is Figure 27 middle sections B-B and C-C view；
Figure 31 is that the right side of the first left cam path regards expanded view and the left view expanded view of the first right cam path；
Figure 32 is that the right side of the second left cam path regards expanded view and the left view expanded view of the second right cam path；
Figure 33 is that desktop rotates and the second centre wheel 24, the front view of the sound switching mechanism of the first centre wheel 6 during lifting；
Figure 34 is the machine that desktop rotates the starting point that remained static with the second centre wheel 24, the first centre wheel 6 during lifting Structure top view；
Figure 35 is that the second centre wheel 24, the first centre wheel 6 remain static end point with opening when desktop is rotated with lifting Begin the mechanism top view rotated；
Figure 36 is that desktop rotates the mechanism vertical view that 15 ° of positions are turned to the second centre wheel 24, the first centre wheel 6 during lifting Figure；
Figure 37 is that desktop rotates the mechanism vertical view that 30 ° of positions are turned to the second centre wheel 24, the first centre wheel 6 during lifting Figure；
Figure 38 is the restrained motionless component drawings of external cam；
Figure 39 be in Figure 38 A-A to section view；
Figure 40 is the part drawing of external cam positioning sleeve；
Figure 41 is the front view of pentagon desktop；
Figure 42 is the top view of pentagon desktop；
Figure 43 is the A direction views in Figure 41；
Figure 44 is the B direction views in Figure 42 and Figure 43；
Figure 45 is C-C in Figure 43 to sectional view；
Figure 46 is the front view of fan-shaped desktop；
Figure 47 is the part top view of fan-shaped desktop；
Figure 48 is the A direction views in Figure 46；
Figure 49 is the B direction views in Figure 47 and Figure 48；
Figure 50 is Figure 48 C-C to sectional view；
Figure 51 is the front view of positive dodecagon desktop；
Figure 52 is the A direction views in Figure 51；
Figure 53 is B-B in Figure 52 to sectional view；
Figure 54 is the front view of clutch disk；
Figure 55 is the front view of gear pole；
Figure 56 is the top view of gear pole；
Figure 57 is the front view of three axostylus axostyles；
Figure 58 is the top view of three axostylus axostyles；
Figure 59 a are pentagon desktop slideway structure front views, and Figure 59 b are pentagon desktop slideway structure left views；
Figure 60 is the mechanism front view that six pieces of pentagon desktops are inside contracted outer driving of rising；
Figure 61 is the A-A direction views in Figure 61；
Figure 62 a are fan-shaped desktop support part-structure front views, and Figure 62 b are fan-shaped desktop support part-structure left views；
Figure 63 is the mechanism front view that six pieces of fan-shaped desktops are inside contracted outer driving of rising；
Figure 64 is the A-A direction views in Figure 63；
Figure 65 a are pentagon desktop bottom plate and support set annexation front view, and Figure 65 b are pentagon desktop bottom plates With support set annexation top view；
Figure 66 a are sector bottom plate and support set structural front view, and Figure 66 b are that sector bottom plate is overlooked with support nested structure Figure；
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
The round table that two kinds of a kind of library Desktop Dimensions as shown in Figure 1 to Figure 2 are freely changed, by six pieces of pentagon desktops 1st, the tabletop section that one piece of positive dodecagon desktop 2 and six pieces of fan-shaped desktops 3 are formed, and tabletop section is carried out size conversion Switching mechanism；In large table surface size, including six pieces of pentagon desktops 1, one piece of positive dodecagon 2, six pieces of fan-shaped desktops 3, Their border contacts each other, forms large table surface size, and in small table surface size, it includes six pieces of fan-shaped desktops 3, they Border contact each other, form small table surface size.
With reference to as shown in Figure 3 to Figure 4, when in small table surface size, six pieces of pentagons 1 are shrunk to six leaves to desktop-centric Shape, and the height of a desktop is moved down, positioned at the underface of small table surface, positive dodecagon moves down the height of two desktops Degree, positioned at the underface of sexfoil, looks down from top, and up, positive dodecagon 2 is in lower section, six piece five for six pieces of fan-shaped desktops 3 Side shape 1 is in centre, and in the height direction, three has 0.5mm or so gap each other；
With reference to as shown in Fig. 5, Fig. 6, Figure 60 and Figure 61, above-mentioned six pieces of pentagon desktops inside contract abduction mechanism, including first Planetary gear 4, the first rope sheave 5, the first centre wheel 6, the supporting beam assembly 7 of the six roots of sensation first, steel cable 8, first connecting rod 9, six Individual first outer rope sheave 10, the outer Assembly of pin 11 of the six roots of sensation first, six pentagons, 11-1,30 attachment screws 11-2 of bottom plate, Six support sets 11-3, six attaching nuts 11-4, six locking nuts 11-5, six lock-screws 11-6, pentagon glide Road 12, six roots of sensation pentagon external support axle 13, the outer rope sheave bearing pin 14 of the six roots of sensation, six steel wire rope pintle hook locks 15, six roots of sensation pentagon is interior to be supported Axle 16, wire rope guide wheel 17, wherein the first pilot pin 18, A1, A2, A3, A4, A5, A6 are that steel cable 8 drives six piece of five side The direction of the abduction exercise of shape 1, when A1~A6 counter motions, steel cable 8 drives six pieces of pentagon desktops 1 to inside contract fortune Dynamic, they realize and shorten the six pieces of parts of sexfoil and abduction for large table surface size in six pieces of pentagon desktops 1 into, six pieces Pentagon glide path 12 is fixedly mounted in the bottom surface of pentagon desktop 1, is supported in six roots of sensation pentagon external support axle 13, six roots of sensation pentagon Axle 16 is respectively and fixedly installed in the hole that the six roots of sensation first supports beam assembly 7, the cylinder of the upper end of six roots of sensation pentagon external support axle 13, The cylinder of the upper end of support shaft 16 can radially slide in pentagon glide path 12 in six roots of sensation pentagon, outside described six first Rope sheave 10 supports beam assembly 7 by rope sheave bearing pin 14 outside the six roots of sensation and the six roots of sensation first and separately constitutes rotation connection, described first Steel wire rope 8 is arranged on six the first outer rope sheaves 10, and the inner of described first connecting rod 9 passes through six locking nuts 11-5, six Individual lock-screw 11-6 is fixedly mounted on steel cable 8, and the outer end of described six first connecting rods 9 supports through six Set 11-3 is locked by six attaching nuts 11-4, and 11-3, six pentagons of described six support sets pass through three with bottom plate 11-1 Ten attachment screws 11-2 are connected to below six pieces of pentagons 1, and described six steel wire rope pintle hook locks 15 are by six first connecting rods 9 Inner locked on steel cable 8, the described collective effect of 17 and first pilot pin of wire rope guide wheel 18, make first steel The respective backbar that cord 8 supports beam assembly 7 along the six roots of sensation first is longitudinally arranged, described the first planetary gear 4 and the first rope sheave 5 The six roots of sensation first is arranged on by bearing pin to support on beam assembly 7, in six pieces of abductions of pentagon 1 or during inside contracting, the first center Wheel 6 is fixed on the vertical axis of desktop-centric, when six pieces of pentagons 1 lift 1 height of table top in height, the first center Wheel 6 freely rotates on the vertical axis of desktop-centric, as shown in fig. 6, the angular speed for setting the first planetary gear 4 is restricted as ω 4, first The angular speed of wheel 5 be that ω 5, ω 4=ω 5, first support tie-rod of the beam assembly 7 for the Gear Planet Transmission, and angular speed is ω 7, first The angular speed of centre wheel 6 is ω 6, within Δ t time, first supporting beam assembly 7, the first planetary gear 4, the first centre wheel 6 it Between gearratio relation beWhen the first centre wheel 6 is fixed, i.e. ω 6=0, Then (ω4-ω7)/(0-ω7)=- 4, ω4-ω7=4 ω7, ω4Δt-ω7Δ t=4 ω7Δ t,Show first Planetary gear 4 is used for the zoom action of desktop relative to the relative rotation of the first supporting beam assembly 7 for the φ 7 of 4 φ 7,4, and 4 φ 7 are multiplied by The radius of first rope sheave 5 obtains displacement, the displacement drive steel cable 8, then passes through first connecting rod 9, the first outer bearing pin group Part 11, steel wire rope pintle hook lock 15, pentagon glide path 12 drive pentagon 1 inwardly or outwardly relatively move, when the first centre wheel 6, When the first supporting corner of beam assembly 7 is identical, 6-ω 7=ω of-4 ω 4-ω 7=0, i.e. ω 4=ω 7, φ 4=φ 7, the first planet For wheel 4 with the first rope sheave 5 to be fixedly connected, the first planetary gear 4 and first supports the synchronous axial system of beam assembly 7, the nothing of steel cable 8 Relative motion, without zoom action, the state corresponds to positive dodecagon desktop 2 and lifts the motions of two height of table top and six pieces desktop Pentagon 1 lifts the motion of a height of table top；
With reference to as shown in Fig. 7, Fig. 8 and Figure 62, described six pieces of fan-shaped desktops inside contract abduction mechanism, including, the six roots of sensation is fan-shaped Desktop movement guide groove 19, second connecting rod 20, six the second outer rope sheaves 21, the outer bearing pin 22 of the six roots of sensation second, six locking pin 22-1, the Two rope sheaves 23, the second centre wheel 24, the outer rope sheave bearing pin 25 of the six roots of sensation, six roots of sensation sector external support axle 26, six sector bottom plate 26-1, 42 attachment screw 26-2, six support set 26-3, six attaching nuts 26-4, six locking nut 26-5, six are locked Tight screw 26-6, six steel wire rope pintle hook locks 27, support shaft 28 in six roots of sensation sector, second steel wire rope 29, the second supporting beam assembly 30, the second pilot pin 31, the second planetary gear 32, second, which restricts, uses guide sleeve 65；Wherein B1, B2, B3, B4, B5, B6 are second steel wire Rope 29 drives the direction of six pieces of fan-shaped abduction exercises of desktop 3, and when B1~B6 counter motions, second steel wire rope 29 drives six pieces Fan-shaped desktop 3 inside contracts motion, and they realize six pieces of fan-shaped desktops 3 and inside contract six pieces of small table surface with abduction for large table surface size Six roots of sensation sector desktop movement guide groove 19, described six roots of sensation fan is fixedly mounted in part, the bottom surface of described six pieces of fan-shaped desktops 3 Support shaft 28 is respectively and fixedly installed in the hole that the six roots of sensation second supports beam assembly 30 in shape external support axle 26, six roots of sensation sector, described The cylinder of the upper end of six roots of sensation sector external support axle 26, the cylinder of the upper end of support shaft 28 can be in six roots of sensation sector table in six roots of sensation sector Radially slided in face movement guide groove 19, described six the second outer rope sheaves 21 pass through the outer bearing pin 22 of the six roots of sensation second and the six roots of sensation second Bolster component 30 separately constitutes rotation connection, and described second steel wire rope 29 is arranged on six the second rope sheaves 23, described The inner of second connecting rod 20 is fixedly mounted on second steel wire rope 29 by six locking nut 26-5, six lock-screw 26-6 On, the outer end of described six second connecting rods 20 is locked through six support set 26-3 by six attaching nuts 26-4, described Six support set 26-3, six fan-shaped desktops are connected to six pieces of sectors 3 with bottom plate 26-1 by 42 attachment screw 26-2 Below, described six steel wire rope pintle hook locks 27 are by inner locked on second steel wire rope 29, the institute of six second connecting rods 20 The the second rope guide sleeve 65 and the collective effect of the second pilot pin 31 stated, make second steel wire rope 29 along the six roots of sensation the second backbar group The respective backbar of part 30 is longitudinally arranged, and the second described planetary gear 32 and the second rope sheave 23 are arranged on the six roots of sensation second by bearing pin Support on beam assembly 30, in six pieces of abductions of sector 3 or during inside contracting, vertical axis of second centre wheel 24 on desktop-centric Line is fixed, and six pieces of sectors 3 without lifting, only relatively move, the second centre wheel 24 is in desktop in radial direction in height The vertical axis of the heart can do free rotation, as shown in fig. 7, setting the angular speed of the second planetary gear 32 as ω 32, the second rope sheave 23 Angular speed be tie-rod that ω 23, ω 32=ω 23, second support that beam assembly 30 is the Gear Planet Transmission, angular speed is ω 30, the The angular speed of two centre wheels 24 is ω 24, within Δ t time, the second supporting beam assembly 30, the second planetary gear 32, the second center Wheel 24 between gearratio relation beWhen the second centre wheel 24 is fixed When, i.e. ω 24=0, then (ω32-ω30)/(0-ω30)=- 4, ω32-ω30=4 ω30, ω32Δt-ω30Δ t=4 ω30Δ t,Show that the second planetary gear 32 is used for relative to the relative rotation of the second supporting beam assembly 30 for the φ 30 of 4 φ 30,4 The zoom action of desktop, the radius that 4 φ 30 are multiplied by the second rope sheave 23 obtain displacement, second steel wire rope 29 of the displacement drive, then By second connecting rod 20, the second outer bearing pin 22, steel wire rope pintle hook lock 27, fan-shaped desktop move guide groove 19 drive sector 3 outwards or to Interior relative movement, when the second centre wheel 24, second supporting corner of beam assembly 30 is identical ,-ω the 30=of 24-ω 30=ω of-4 ω 32 0, i.e. ω 32=ω 30, φ 32=φ 30, the second planetary gear 32 and the second rope sheave 23 is are fixedly connected with, the second planetary gear 32 and the The two supporting synchronous axial systems of beam assembly 30, second steel wire rope 29 correspond to positive ten without relative motion, desktop without zoom action, the state Lune desktop 2 lifts the motion and the motion of six pieces of one height of table top of lifting of pentagon desktops 1 of two height of table top；
With reference to as shown in figure 9, the positive dodecagon desktop lifting mechanism in described center, lifts two desktop thickness H1, bag Include clutch disk 33, eight screws 34, the first left cam path 35, the first cam pack 36, positive 12 jiaos of desktop fulcrums 37, desktop Chassis 38, the first right cam path 39, lower axle guide pin bushing 40, tibet cinnamon bark plate 41, internal axle sleeve 46, thrust bearing 47, two first supportings Beam bearing pin 52, adapter sleeve 53, two split pins 54, cam path connecting bolt and nut assembly 62, two first cam bearing pins 63, Described positive dodecagon 2 is driven, when desktop is changed into small size desktop from large scale desktop, corner counterclockwise from 0 ° to In the range of 30 °, positive dodecagon declines two height of table top, in the range of corner counterclockwise is from 30 ° to 137 °, positive 12 Angular desktop, which only rotates, not to be lifted, when desktop is changed into large scale desktop from small size desktop, corner clockwise from 0 ° to In the range of 107 °, positive dodecagon desktop, which only rotates, not to be lifted, in the range of corner clockwise is from 107 ° to 137 °, positive ten Lune rises two height of table top while rotating, and described positive dodecagon 2 passes through eight screws 34 and clutch disk 33 are fixedly connected, and described adapter sleeve 53 is welded on clutch disk 33, and described two split pins 54 are by positive 12 jiaos of desktops Fulcrum 37 is fixedly connected with adapter sleeve 53, described two first backbar bearing pins 52 in the axial groove G1 of internal axle sleeve 46, In the axial groove G2 of positive 12 jiaos of desktop fulcrums 37, so that internal axle sleeve 46 can turn with positive 12 jiaos of desktop fulcrums 37 simultaneously Dynamic and can move to axial, described two first cam bearing pins 63 are by the first cam pack 36 and positive 12 jiaos of desktops Fulcrum 37 is fixedly connected, and for the roller of the described left end of the first cam pack 36 in the first left cam path 35, described first is convex The roller of the right-hand member of wheel assembly 36 in the first right cam path 39, the described first left cam path 35 by cam path connecting bolt with Nut assembly 62 is fixedly connected with desktop chassis 38, and the described first right cam path 39 passes through cam path connecting bolt and nut group Part 62 is fixedly connected with desktop chassis 38, and described positive 12 jiaos of Zhuo Xing faces fulcrum 37 is rotatablely connected with the composition of lower axle guide pin bushing 40, Installed thrust bearing 47 between described positive dodecagon desktop fulcrum 37 and ground, three are opened on described lower axle guide pin bushing 40 The axial groove G3 of cloth, the inner of described tibet cinnamon bark plate 41 insert three uniform axial groove G3 innner and outers ends and desktop chassis 38 Contact, is positioned lower axle guide pin bushing 40；Described positive dodecagon desktop 2 can be done relatively relative to the central axis of desktop Rotate and the first left cam path 35, the first right cam path 39 constraint under can move to axial, mobile distance is H1。
With reference to six pieces of pentagon desktop lifting mechanisms as shown in Figure 10, described, a desktop thickness H2, including six are lifted Supporting 7, the 12 jiaos of desktop fulcrums 37 of beam assembly of root first, desktop bottom annulus frame 38, lower axle guide pin bushing 40, tibet cinnamon bark plate 41, the Two left cam paths 42, the second cam pack 43, the second right cam path 45, internal axle sleeve 46, thrust bearing 47, the first block set 51, two The first backbar of root bearing pin 52, pentagon desktop Assembly of pin 58, cam path connecting bolt and nut assembly 62, two second convex Bearing pin 64 is taken turns, described six pieces of pentagon desktops 1 are driven, when desktop is changed into small size desktop from large scale desktop, inverse In the range of hour hands corner is from 0 ° to 30 °, six pieces of pentagons 1 decline a height of table top, in corner counterclockwise from 30 ° to 137 ° In the range of, six pieces of pentagon desktops, 1 rotation does not lift, when desktop is changed into large scale desktop from small size desktop, suitable In the range of hour hands corner is from 0 ° to 107 °, six pieces of pentagons, 1 rotation does not lift, in corner clockwise from 107 ° to 137 ° In the range of, six pieces of pentagons 1 rise a height of table top while rotating, and described six pieces of pentagons 1 pass through pentagon table Face Assembly of pin 58 and the six roots of sensation first support beam assembly 7 and are connected, described two first backbar bearing pins 52 by the first block set 51, The six roots of sensation first supports 7,12 jiaos of desktop fulcrums 37 of beam assembly and connected with internal axle sleeve 46, described two first backbar pins Axle 52 is in the axial groove G1 of internal axle sleeve 46, also in the axial groove G2 of positive 12 jiaos of desktop fulcrums 37 while in the first block set In 51 hole, also supported in the six roots of sensation first the inner hole of beam assembly 7 so that internal axle sleeve 46, positive 12 jiaos of desktop fulcrums 37, Six pieces of pentagons 1 can simultaneously be rotated and can moved to axial, and described two second cam bearing pins 64 are convex by second Wheel assembly 43 is fixedly connected with internal axle sleeve 46, the roller of the described left end of the second cam pack 43 in the second left cam path 42, For the roller of the described right-hand member of the second cam pack 43 in the second right cam path 45, the described second left cam path 42 passes through cam Groove connecting bolt is fixedly connected with nut assembly 62 with desktop chassis 38, and the described second right cam path 45 is connected by cam path Bolts and nuts component 62 is fixedly connected with desktop chassis 38, described six pieces of uniform pentagons 1 relative to desktop central shaft Line can relatively rotate and the second left cam path 42, the second right cam path 45 constraint under can move to axial, Mobile distance is H2.
With reference to six pieces of fan-shaped height of table top as shown in figure 11, described without lifting, its support section has the second centre wheel 24, Second supporting 30,12 jiaos of desktop fulcrums 37 of beam assembly, desktop chassis 38, lower axle guide pin bushing 40, three positioning gussets 41, outer shaft 46, thrust bearing 47, the second block set 50, fan-shaped desktop Assembly of pin 57, two constraint bearing pins 59, second, which restricts, uses guide sleeve 65, 12 backbar bearing pins 82, described six pieces of fan-shaped desktops 3 support beam assembly by fan-shaped desktop Assembly of pin 57 and second 30 connections, the described second supporting beam assembly 30 is fixedly connected by 12 backbar bearing pins 82 with the second block set 50, described The second block set 50 and the second centre wheel 24 composition be rotatablely connected, when desktop is changed into small size desktop from large scale desktop, fan Shape desktop is only rotated, inwardly radially moved, without lifting, when desktop is changed into large scale desktop from small size desktop, fan-shaped table Face only rotates, outwards radially moved, without lifting.
With reference to three groups of desktops displacement as shown in figure 12, described and two groups of lifter cam mechanisms and frame, including second Support beam assembly 30, the gear support bearing pin 30-11 of beam two, the gear connecting key 30-12 of beam two, beam two gear lock pin 30-13, second Planetary gear 32, clutch disk 33, six roots of sensation screw 34, the first left cam path 35, the first cam 36, positive dodecagon fulcrum 37, table Face chassis 38, lower axle guide pin bushing 40, tibet cinnamon bark plate 41, the second left cam path 42, the second cam 43, the first rope are used guide sleeve 44, pushed away Power bearing 47, bearing pin 48, key 49, the second block set 50, the first block set 51, two first backbar bearing pins 52, adapter sleeve 53, two Split pin 54, gangbar 55, three set bars 56, fan-shaped desktop Assembly of pin 57, pentagon desktop Assembly of pin 58, two about Beam bearing pin 59, gear locating rack component 60, two locating rack connecting bolts and nut 61, two cam path connecting bolts and nut Component 62, two first cam bearing pins 63, two second cam bearing pins 64, the second rope use 65,12 backbar pins of guide sleeve Axle 82, described six pieces of pentagon desktops 1 lift a desktop thickness H2, the positive lifting of dodecagon desktop 2 two in described center Individual desktop thickness H1, described six pieces of fan-shaped height of desktop 3 are without lifting；The first described rope sheave 5 passes through bearing pin 48 and first Bolster component 7 is fixedly connected, and the first described planetary gear 4 is connected by key 49 with the first rope sheave 5, the first described planetary gear 4 It is meshed with the first centre wheel 6, described steel cable 8 is pressed on the first rope sheave 5, and the first described centre wheel 6 is logical Cross two constraint bearing pins 59 to be fixedly connected with the second centre wheel 24, the second described block set 50 and the first planetary gear 4 composition rotate Connection, the described second supporting beam assembly 30 are fixedly connected by backbar bearing pin 82 with the second block set 50, described first Bolster component 7 is fixedly connected by the first backbar bearing pin 52 with the first block set 51, and the described second rope is with guide sleeve 65 and the The composition rotation connection of two centre wheels 24, the second described rope sheave 23 pass through the gear support bearing pin 30-11 of beam two and the second backbar Component 30 is fixedly connected, and the second described planetary gear 32 passes through the gear connecting key 30-12 of beam two and the gear support bearing pin 30- of beam two 11 connections, the described gear lock pin 30-13 of beam two are arranged on the gear support bearing pin 30-11 of beam two, the second described planetary gear 32 are meshed with the second centre wheel 24, and described second steel wire rope 29 is pressed on the second rope sheave 23, the positioning of described gear Frame component 60 is to realize that the second centre wheel 24 is fixed with releasing fixed a part of structure.
With reference to as shown in Figure 13 to Figure 14, two support groups of the described movement in vertical direction of the second centre wheel of constraint 24 Right support 67, two right support attachment screws 67-1, two pieces of right supports are used in part, including gear constraint bearing 66, gear constraint Left socle 68, two left socle attachment screws 68-1, two pieces of left sides are used in contiguous block 67-2, right support tie-beam 67-3, gear constraint Support contiguous block 68-2, left socle tie-beam 68-3, the second described centre wheel 24 is supported by gear constraint bearing 66, described Gear constraint bearing 66 supported by gear constraint right support 67 and gear constraint left socle 68, described gear constraint It is made up of with left socle 68 two left socle attachment screws 68-1, two pieces of left socle contiguous blocks 68-2, left socle tie-beams 68-3, It is fixedly connected by described two left socle attachment screws 68-1 with desktop bottom annulus frame 38, described gear constraint is right Support 67 is made up of two right support attachment screws 67-1, two pieces of right support contiguous blocks 67-2, right support tie-beams 67-3, is passed through Described two right support attachment screws 67-1 are fixedly connected with desktop bottom annulus frame 38, and described two right supports connect spiral shell Nail 67-1 is to be threadedly coupled with two pieces of right support contiguous blocks 67-2, described two left socle attachment screws 68-1, two pieces of left branch Frame contiguous block 68-2 is threaded connection.
With reference to as shown in Figure 15 to Figure 22, the phase relation of two described pack supports and two sets of Planetary Gear Transmissions, it is wrapped Include the six roots of sensation first and support beam assembly 7, first, a beam backbar 7-1, second, a beam backbar 7-2, the 3rd supporting of a beam Beam 7-3, a beam the 4th backbar 7-4, beam the first backbar outer sleeve 7-5, the 5th backbar 7-6 of a beam, a beam One backbar contiguous block 7-7；One beam six roots of sensation backbar 7-8, beam the first backbar inner sleeve 7-9, first backbar of beam Guide pin 7-10, beam the first backbar guide sleeve 7-11, the second supporting beam assembly 30, two first, beam backbar 30-1, Two second, beam backbar 30-2, the 3rd backbar 30-3 of two beams, the 4th backbar 30-4 of two beams, the 5th supporting of two beams Beam 30-5, two beam inner sleeve 30-6, two beam guide pin 30-7, two beam guide sleeve 30-8, two beam six roots of sensation backbar 30-9, two Beam contiguous block 30-10, two beam gear support bearing pin 30-11, two beam gear connecting key 30-12, two beam gear lock pin 30-13, the One rope sheave 5, the second rope sheave 23, bearing pin 48, the second block set 50, the first block set 51, gangbar 55, three linkage pin assemblies 56, connection Dynamic first bearing pin 56-1, link the second bearing pin 56-2, and link the 3rd bearing pin 56-3, the described six roots of sensation first supporting quilt of beam assembly 7 First block set 51 supports, and the described second supporting beam assembly 30 is supported by the second block set 50, described gangbar 55 and three connection Dynamic pin assemblies 56 connect the 5th the 4th backbar 30-4 of two beams, two beams backbar 30-5 and the 4th backbar 7-4 of a beam Pick up and, the first described rope sheave 5 is connected by first backbar 7-1 of bearing pin 48 and a beam, and the second described rope sheave 23 is logical Two beam gear support bearing pin 30-11 connections are crossed, described beam the first backbar guide sleeve 7-11 passes through first backbar of beam Guide pin 7-10, beam the first backbar inner sleeve 7-9 are connected with a beam six roots of sensation backbar 7-8, and two described beams are oriented to Set 30-8 is connected by two beam guide pin 30-7, two beam inner sleeve 30-6 with two beam six roots of sensation backbar 30-9, described connection Dynamic first bearing pin 56-1, the second bearing pin 56-2 of linkage, the 3rd bearing pin 56-3 of linkage are fixedly connected with gangbar 55.
With reference to as shown in Figure 23 to Figure 24, a kind of scheme of the cam pack of the utility model first, including two first rollings Sub- bearing pin 36-1, two the first pole 36-2, the first block set 36-3, the first seat cushion 36-4, bearing pin 36-5 in two first, first Roller 36-6,12 jiaos of desktop fulcrums 37, two first cam bearing pins 63, described the first roller 36-6 and the first roller bearing pin 36-1 is rotation connection, and the first described roller bearing pin 36-1 is fixedly mounted in the first pole 36-2 hole, described first Interior bearing pin 36-5 outer end is fixedly mounted in the first pole 36-2 hole, the fixed peace in bearing pin 36-5 the inner in described first In the first seat cushion 36-4 hole, the first described seat cushion 36-4 is fixedly mounted in the first block set 36-3 hole, described First block set 36-3 is fixedly connected by the first cam bearing pin 63 with 12 jiaos of desktop fulcrums 37.
With reference to as shown in Figure 25 to Figure 26, a kind of scheme of the cam pack of the utility model second, including two second rollings Sub- bearing pin 43-1, two the second pole 43-2, the second block set 43-3, two the second seat cushion 43-4, bearing pin 43-5 in two second, Second roller 43-6, internal axle sleeve 46, two second cam bearing pins 64, the first described roller 43-6 and the first roller bearing pin 43-1 For rotation connection, the second described roller bearing pin 43-1 is fixedly mounted in the second pole 43-2 hole, and described second is domestic Axle 43-5 outer end is fixedly mounted in the second pole 43-2 hole, and bearing pin 43-5 the inner is fixedly mounted in described second In second seat cushion 43-4 hole, the second described seat cushion 43-4 is fixedly mounted in the second block set 43-3 hole, and described second Block set 43-3 is fixedly connected by the first cam bearing pin 64 with internal axle sleeve 46.
With reference to as shown in Figure 27 to Figure 32, a kind of scheme of the utility model arc-shaped cam component, including the first left cam Groove 35, desktop chassis 38, the first right cam path 39, the second left cam path 42, the second right cam path 45, cam path connecting bolt 62-1, cam path attaching nut 62-2, the described first left cam path 35 are connected by cam path connecting bolt 62-1 and cam path Connected nut 62-2 is fixedly mounted on desktop chassis 38, the described first right cam path 39 by cam path connecting bolt 62-1 with Cam path attaching nut 62-2 is fixedly mounted on desktop chassis 38, and the described second left cam path 42 connects spiral shell by cam path Bolt 62-1 and cam path attaching nut 62-2 is fixedly mounted on desktop chassis 38, and the described second right cam path 45 passes through cam Groove connecting bolt 62-1 and cam path attaching nut 62-2 is fixedly mounted on desktop chassis 38.
With reference to as shown in Figure 33 to Figure 40, the second centre wheel 24 there are with the first centre wheel 6 when desktop is rotated with lifting Sound switching mechanism, including the first centre wheel 6, the second centre wheel 24, the second supporting beam assembly 30, the 4th backbar of beam 2 30-4, beam 2 the 5th backbar 30-5, the contiguous block 30-10 of beam two, desktop chassis 38, internal axle sleeve 46, the second block set 50, two Constrain bearing pin 59, locating rack connecting bolt 61-1, locating rack attaching nut 61-2, the first bearing pin 69-1 of cam ring connection is interior Second bearing pin 69-2 of cam connection, cam ring 70, interior roller bearing pin 71, interior roller 72, three axostylus axostyles 73, outer roller bearing pin 74, Outer roller 75, external cam 76, evagination wheeling support 77, associate bearing pin 78, gear pole 79, two rooted tooth wheel bearing pins 80, gear connection First bearing pin 80-1, gear connect second bearing pin 80-2, and two back-up rings, 81,12 backbar bearing pins 82, external cam is fixed Position set 83, described gear pole 79 connects first bearing pin 80-1 by gear, gear connects second bearing pin 80-2 and fixed It is connected on the second centre wheel 24, described gear pole 79 is connected by associating bearing pin 78 with three axostylus axostyles 73 with revolute pair, institute Three axostylus axostyles 73 stated install interior roller 72 by interior roller bearing pin 71, and three described axostylus axostyles 73 are installed outer by outer roller bearing pin 74 Roller 75, described cam ring 70 are connected by the 4th backbar 30-4 of the first bearing pin 69-1 that cam ring connects and beam 2, Described cam ring 70 is connected by the 5th backbar 30-5 of the second bearing pin 69-2 that cam ring connects and beam 2, and described is interior Roller 72 is in the circular arc portion of cam ring 70, and described outer roller 75 is in the T2 grooves of external cam 76, described evagination wheeling support 77 to be welded on external cam 76 be outside, and described locating rack connecting bolt 61-1 is through the hole on external cam positioning sleeve 83, evagination Hole, the hole on desktop chassis 38 and locating rack attaching nut 61-2 on wheel 76 jointly fix external cam 76, when the second supporting When beam assembly 30 rotates clockwise in 0 ° to 107 ° of section, the second described centre wheel 24 remains static, such as Figure 34 institutes Show, when the second supporting beam assembly 30 rotates clockwise in 107 ° to 137 ° of section, the groove T1 on cam ring 70 promotes interior roll Son 72, outer roller 75 leaves the groove T2 of external cam 76, then, passes through three axostylus axostyles 73, association bearing pin 78, gear pole 79, gear First bearing pin 80-1 of connection, gear connect second bearing pin 80-2 and drive the second centre wheel 24 to rotate clockwise, and described the Two centre wheels 24 and the second supporting synchronous axial system of beam assembly 30, as shown in Figure 35, Figure 36, Figure 37, Figure 35 show the second center Wheel 24 starts to rotate, and Figure 36 show the position that the second centre wheel 24 turns to 15 °, and Figure 37 show the second centre wheel 24 and rotated To 30 ° of position, when the second centre wheel 24 remains static, corresponding six pieces of pentagon desktops, 1, six piece of fan-shaped desktop 3 to The external expansion of desktop-centric, when the second centre wheel 24, which is in, rotates clockwise state, positive dodecagon 2 rises two desktop height Degree, six pieces of pentagon desktops 1 rise a height of table top, when the second supporting beam assembly 30 is counterclockwise in 137 ° to 107 ° of section During rotation, described interior roller 72 is in the groove T1 of cam ring 70, and outer roller 75 is on the circular arc of external cam 76, and described second Centre wheel 24 is in synchronous axial system state counterclockwise, and as shown in Figure 37, Figure 36, now, corresponding positive dodecagon 2 declines two tables Face height, six pieces of pentagon desktops 1 decline a height of table top, when section inverse time of the second supporting beam assembly 30 at 107 ° to 0 ° When pin rotates, described outer roller 75 enters in the groove T2 of external cam 76, and described interior roller 72 enters the circular arc of cam ring 70 On, then, the second described centre wheel 24 is by locked motionless, now, corresponding six pieces of pentagon desktops, 1, six piece of fan-shaped desktop 3 to Desktop-centric shrinks.
With reference to as shown in Figure 41 to Figure 45, pentagon glide path 12 is arranged in the bottom surface groove G4 of pentagon desktop 1, five sides Shape is arranged on bottom plate 11-1 in the bottom surface groove G5 of pentagon desktop 1.
With reference to as shown in Figure 46 to Figure 50, fan-shaped desktop movement guide groove 19 is arranged in the bottom surface groove G6 of sector 3, and sector is used Bottom plate 26-1 is arranged in the bottom surface groove G7 of sector 3.
With reference to as shown in Figure 51 to Figure 53, the bottom surface that clutch disk 33 is arranged on positive dodecagon 2 by screw 34 is installed In bullport G8.
With reference to shown in Figure 54, the bottom surface that clutch disk 33 is arranged on positive dodecagon desktop 2 by eight screws 34 is installed In bullport G8.
With reference to as shown in Figure 55 and 56, described gear pole 79 is T-type structure.
With reference to as shown in Figure 57 and 58, three described axostylus axostyles 73 are T-type structure.
With reference to as shown in figure 50, pentagon desktop slideway structure, pentagon external support axle 13 and support shaft 16 in pentagon The column part of epimere is separately mounted in pentagon glide path 12, and described pentagon external support axle 13 in pentagon with supporting The column part of the hypomere of axle 16 is separately mounted in the first supporting beam assembly 7, described pentagon external support axle 13 and pentagon The column part of the interior epimere of support shaft 16 can move in pentagon desktop glide path 12.
With reference to as shown in Figure 60 and Figure 61, described six pieces of pentagon desktops 1 are inside contracted the mechanism of outer driving of rising, including five Side shape desktop 1, pentagon desktop bottom plate 11-1, attachment screw 11-2, support set 11-3, attaching nut 11-4, locking nut 11-5, lock-screw 11-6, the first supporting beam assembly 7, steel cable 8, first connecting rod 9, the first outer rope sheave 10, pentagon External support axle 13, outer rope sheave bearing pin 14, locking pin 14-1, support shaft 16 in pentagon, described pentagon desktop with bottom plate 11- 1 is fixedly connected by attachment screw 11-2 with pentagon desktop 1, described pentagon desktop bottom plate 11-1 and support set 11-3 Weld together, the outer end of described first connecting rod 9 is fixed through connected nut 11-4 behind the hole of the lower end of support set 11-3, institute The steel cable 8 stated passes through the hole of the lower end of lock-screw 11-6, and described lock-screw 11-6 passes through first connecting rod 9 inner Hole, described locking nut 11-5 is locked by steel cable 8 and first connecting rod 9, and described steel cable 8 is tensioned On the first outer rope sheave 10, the described first outer rope sheave 10 is fixedly connected on first by outer rope sheave bearing pin 14 and locking pin 14-1 Support beam assembly 7 on, when the first outer rope sheave 10 by driving rotation after, steel cable 8 by first connecting rod 9, support set 11- 3rd, pentagon desktop bottom plate 11-1 drives pentagon desktop 1 to inside contract or motion of rising outside, now in pentagon desktop 1 The G4 grooves of glide path 12 do relative motion on column part of the pentagon external support axle 13 with the epimere of support shaft in pentagon 16.
With reference to as shown in Figure 62, fan-shaped desktop support part-structure, fan-shaped external support shaft assembly 26 and support shaft in sector The column part of the epimere of component 28 is separately mounted in the fan-shaped desktop movement guide groove 19 of fan-shaped desktop 3, and described sector is outer to prop up The column part for holding shaft assembly 26 and the fan-shaped interior supporting hypomere of shaft assembly 28 is separately mounted in the second supporting beam assembly 30, described Fan-shaped external support shaft assembly 26 with it is fan-shaped in the column part of the supporting epimere of shaft assembly 28 can move guide groove in fan-shaped desktop 19 inner movements.
With reference to as shown in Figure 63 and Figure 64, described six pieces of fan-shaped desktops 3 are inside contracted the mechanism of outer driving of rising, including sector Desktop 3, second connecting rod 20, the second outer bearing pin 22, locking pin 22-1, the second rope sheave 23, outer rope sheave bearing pin 25, sector bottom plate 25-1, attachment screw 25-2, support set 25-3, attaching nut 25-4, locking nut 25-5, lock-screw 25-6, fan-shaped outer branch Hold shaft assembly 26, fan-shaped interior supporting shaft assembly 28, second steel wire rope 29, the second supporting beam assembly 30, described sector bottom Plate 25-1 is fixedly connected by attachment screw 25-2 with fan-shaped desktop 3, and described sector is welded with bottom plate 25-and support set 25-3 Together, the outer end of described second connecting rod 20 is fixed through connected nut 25-4 behind the hole of the lower end of support set 25-3, described Second steel wire rope 29 it is locked with second connecting rod 20 through lock-screw 25-6, second described steel wire rope 29 is stretched in the On two rope sheaves 23, the second described rope sheave 23 is fixedly connected on the second backbar group by the second outer bearing pin 22 and locking pin 22-1 On part 30, after the second rope sheave 23 is rotated by driving, second steel wire rope 29 passes through second connecting rod 20, support set 25-3, sector Fan-shaped desktop 3 is driven to inside contract or rise outside motion with bottom plate 25-1, now the G6 grooves of the glide path 19 in fan-shaped desktop 3 exist Fan-shaped external support shaft assembly 26 on the column part of the fan-shaped interior supporting epimere of shaft assembly 28 with doing relative motion.
With reference to as shown in Figure 65, connected mode use weldering of the pentagon desktop between bottom plate 11-1 and support set 11-3 Connect.
With reference to as shown in Figure 66, connected mode use welding of the sector between bottom plate 25-1 and support set 25-3.
The utility model size of desktop can be changed as needed, when desktop is large scale desktop, desktop altogether by 13 pieces of plate compositions, middle one piece is dodecagon, 2 height of table top can be lifted in height, now in a high position；Edge is equal 6 pieces of pentagon plate faces of even distribution, can lift 1 height of table top in height, now in a high position；Edge is also uniformly distributed 6 pieces of fans Shape plate face, height do not change；Each pentagon plate face arrangement alternate with each fan-shaped plate face.When desktop is from large scale desktop When being changed into small size desktop, both hands are held similar two pieces of fan-shaped desktops and rotated counterclockwise, now, positive dodecagon, 6 piece five Angular and 6 pieces of fan-shaped synchronous axial systems, corner is identical, and in the range of corner is from 0 ° to 30 °, positive dodecagon declines 2 desktops Highly, 6 pieces of pentagons decline 1 height of table top, and 6 pieces of sectors do not decline；In the range of corner is from 30 ° to 137 °, positive 12 Angular only rotated with 6 pieces of pentagons does not decline, and 6 pieces of pentagons move in intermediate layer to center, ultimately form sexfoil, 6 pieces It is fan-shaped to be moved in top to center, ultimately form approximate detachable round tabletop.When desktop is changed into large scale desktop from small size desktop, Both hands are held similar two pieces of fan-shaped desktops and rotated clockwise, and now, positive dodecagon, 6 pieces of pentagons and 6 pieces of sectors are simultaneously Rotate, corner is identical, and in the range of corner is from 0 ° to 107 °, 6 pieces of sectors are synchronous with 6 pieces of pentagons along respectively through the center of circle Line of symmetry expand outward to large scale desktop, in the range of corner is from 107 ° to 137 °, positive dodecagon rises 2 desktops Highly, 6 pieces of pentagons rise 1 height of table top, and a complete desktop is formed.
When this kind of desk is large scale desktop, diameter top 2000mm；For small size desktop when, diameter top is 1312mm。
Certainly, above-described embodiment is only preferred scheme of the present utility model, is specifically not limited thereto, and on this basis may be used Made according to being actually needed with targetedly adjusting, so as to obtain different embodiments.Due to mode in the cards compared with It is more, just no longer illustrate one by one here.

Claims (7)

1. a kind of convertible round table of Desktop Dimensions, including by six pieces of pentagon desktops (1), one piece of positive dodecagon desktop (2) The tabletop section formed with six pieces of fan-shaped desktops (3), and the switching mechanism for making tabletop section carry out size conversion；Be converted to big It is made up of during desktop three parts individual layer, is positioned at one piece of positive dodecagon desktop (2) of center, positioned at marginal position respectively Six pieces of pentagon desktops (1) and six pieces of fan-shaped desktops (3) positioned at marginal position, six pieces of pentagon desktops (1) and six pieces of fans The alternate arrangement of shape desktop (3)；Desktop forms after being shunk by six pieces of fan-shaped desktops (3) when being converted to small table surface, positioned at top layer；Six pieces Pentagon desktop (1) drops to intermediate layer, and is punctured into sexfoil, and positive dodecagon desktop (2) is located at bottom；
The switching mechanism inside contracts abduction mechanism including six pieces of pentagon desktops, six pieces of fan-shaped desktops inside contract abduction mechanism, positive ten Lune desktop lifting mechanism, and pentagon desktop lifting mechanism；
Six pieces of described pentagon desktops inside contract abduction mechanism, including the first planetary gear (4), the first rope sheave (5), the first centre wheel (6), the six roots of sensation first supports beam assembly (7), steel cable (8), first connecting rod (9), six the first outer rope sheaves (10), the six roots of sensation First outer Assembly of pin (11), pentagon glide path (12), six roots of sensation pentagon external support axle (13), the outer rope sheave bearing pin of the six roots of sensation (14), six steel wire rope pintle hook locks (15), support shaft (16), wire rope guide wheel (17) and the first pilot pin in six roots of sensation pentagon (18)；Pentagon glide path (12) is fixedly mounted in the bottom surface of six pieces of pentagon desktops (1)；Propped up outside described six roots of sensation pentagon Hold axle (13), support shaft (16) is respectively and fixedly installed in the hole that the six roots of sensation first supports beam assembly (7) in six roots of sensation pentagon, described Six roots of sensation pentagon external support axle (13) and six roots of sensation pentagon in the cylinder of support shaft (16) upper end can be in pentagon glide path (12) inner to radially slide, six described the first outer rope sheaves (10) pass through rope sheave bearing pin (14) outside the six roots of sensation and the backbar of the six roots of sensation first Component (7) is connected, and described steel cable (8) is arranged on six the first outer rope sheaves (10), described first connecting rod (9) The inner is fixedly mounted on steel cable (8), and outer end is connected to below six pieces of pentagons (1)；Six described steel wires Cord lock card (15) is by inner locked on steel cable (8), the described wire rope guide wheel (17) of six first connecting rods (9) With the first pilot pin (18) collective effect, steel cable (8) is set to support the respective backbar of beam assembly (7) along the six roots of sensation first It is longitudinally arranged, described the first planetary gear (4) is meshed with the first centre wheel (6), the first planetary gear (4) and the first rope sheave (5) The six roots of sensation first is arranged on by bearing pin to support on beam assembly (7)；
Described positive dodecagon desktop lifting mechanism, including clutch disk (33), the first left cam path (35), the first cam set Part (36), positive 12 jiaos of desktop fulcrums (37), desktop bottom annulus frame (38), the first right cam path (39), lower axle guide pin bushing (40), Tibet cinnamon bark plate (41), internal axle sleeve (46), thrust bearing (47), two first backbar bearing pins (52), adapter sleeve (53), two are opened Mouth pin (54), cam path connecting bolt and nut assembly (62), two first cam bearing pins (63)；Described positive dodecagon table Face (2) is fixedly connected with clutch disk (33), and described adapter sleeve (53) is welded on clutch disk (33), and described two are opened Positive 12 jiaos of desktop fulcrums (37) are fixedly connected by mouth pin (54) with adapter sleeve (53), described two first backbar bearing pins (52) in the axial groove G1 of internal axle sleeve (46), in the axial groove G2 of positive 12 jiaos of desktop fulcrums (37), make internal axle sleeve (46) with Positive 12 jiaos of desktop fulcrums (37) move to axial when rotating, and described two first cam bearing pins (63) are by the first cam Component (36) is fixedly connected with positive 12 jiaos of desktop fulcrums (37)；The roller of described the first cam pack (36) left end is first Left cam path (35) is inner, and the roller of the first cam pack (36) right-hand member is inner in the first right cam path (39)；Described first is left convex Race (35) is fixedly connected by cam path connecting bolt with nut assembly (62) with desktop bottom annulus frame (38), and described One right cam path (39) is fixedly connected by cam path connecting bolt with nut assembly (62) with desktop bottom annulus frame (38), institute The positive 12 jiaos of desktop fulcrums (37) stated are connected with lower axle guide pin bushing (40), described positive 12 jiaos of desktop fulcrums (37) and ground it Between installed thrust bearing (47), open three uniform axial groove G3, described tibet cinnamon bark plate on described lower axle guide pin bushing (40) (41) three uniform axial groove G3 innner and outers ends of inner insertion contact with desktop bottom annulus frame (38), make lower axle guide pin bushing (40) positioned；Described positive dodecagon desktop (2) can relatively rotate relative to the central axis of desktop, and One left cam path (35), the first right cam path (39) constraint under move to axial.
2. the convertible round table of Desktop Dimensions according to claim 1, it is characterised in that in six pieces of described fan-shaped desktops Contracting abduction mechanism, including six roots of sensation sector desktop movement guide groove (19), second connecting rod (20), six the second outer rope sheaves (21), the six roots of sensation Second outer bearing pin (22), six locking pins (22-1), the second rope sheave (23), the second centre wheel (24), the outer rope sheave bearing pin of the six roots of sensation (25), six roots of sensation sector external support axle (26), six steel wire rope pintle hook locks (27), support shaft (28) in six roots of sensation sector, second steel wire Restrict (29), the second supporting beam assembly (30), the second pilot pin (31), the second planetary gear (32) and the second rope use guide sleeve (65)； Six roots of sensation sector desktop movement guide groove (19) is fixedly mounted in the bottom surface of six pieces of described fan-shaped desktops (3), and the described six roots of sensation is fan-shaped outer Support shaft (28) is respectively and fixedly installed in the hole that the six roots of sensation second supports beam assembly (30) in support shaft (26), six roots of sensation sector, and six The cylinder of support shaft (28) upper end can be in six roots of sensation sector table in the cylinder of root sector external support axle (26) upper end, six roots of sensation sector Face movement guide groove (19) it is inner radially slides, described six the second outer rope sheaves (21) by the second outer bearing pin of the six roots of sensation (22) respectively with The six roots of sensation second supports beam assembly (30) connection, and described second steel wire rope (29) is arranged on six the second rope sheaves (23)；Institute The inner for the second connecting rod (20) stated is fixedly mounted on second steel wire rope (29), and outer end is connected to six pieces of fan-shaped desktops (3) Below；Six described steel wire rope pintle hook locks (27) are inner locked in second steel wire rope (29) by six second connecting rods (20) On, the described second rope guide sleeve (65) and the second pilot pin (31) collective effect, make second steel wire rope (29) along the six roots of sensation The respective backbar of second supporting beam assembly (30) is longitudinally arranged, described the second planetary gear (32) and the second centre wheel (24) phase Engagement, the second planetary gear (32) are arranged on the six roots of sensation second by bearing pin with the second rope sheave (23) and supported on beam assembly (30).
3. the convertible round table of Desktop Dimensions according to claim 1, it is characterised in that described pentagon desktop lifting Mechanism, including the six roots of sensation first support beam assembly (7), positive 12 jiaos of desktop fulcrums (37), desktop bottom annulus frame (38), lower spindle guide Cover (40), tibet cinnamon bark plate (41), the second left cam path (42), the second cam pack (43), the second right cam path (45), internal axle sleeve (46), thrust bearing (47), the first block set (51), two first backbar bearing pins (52), pentagon desktop Assembly of pin (58), Cam path connecting bolt and nut assembly (62), two second cam bearing pins (64)；Six pieces of described pentagon desktops (1) pass through Pentagon desktop Assembly of pin (58) supports beam assembly (7) with the six roots of sensation first and is connected；Two described first backbar bearing pins (52) the first block set (51), the supporting beam assembly of the six roots of sensation first (7), 12 jiaos of desktop fulcrums (37) have been connected with internal axle sleeve (46) Come；Two described first backbar bearing pins (52) are in the axial groove G1 of internal axle sleeve (46), positive 12 jiaos of desktop fulcrums (37) In the hole of axial groove G2 and the first block set (51), while supported in the six roots of sensation first the inner hole of beam assembly (7), make internal axle sleeve (46) moved to axial when, positive 12 jiaos of desktop fulcrums (37), six pieces of pentagon desktops (1) rotate；Described two Second cam pack (43) is fixedly connected by two cam bearing pins (64) with internal axle sleeve (46), and described the second cam pack (43) is left The roller at end is inner in the second left cam path (42), and the roller of described the second cam pack (43) right-hand member is in the second right cam path (45) inner, the second described left cam path (42) passes through cam path connecting bolt and nut assembly (62) and desktop bottom annulus frame (38) it is fixedly connected, the described second right cam path (45) passes through cam path connecting bolt and nut assembly (62) and desktop bottom Annulus frame (38) is fixedly connected, and described six pieces of pentagon desktops (1) can relatively rotate relative to the central axis of desktop And the second left cam path (42), the second right cam path (45) constraint under can move to axial.
4. the convertible round table of Desktop Dimensions according to claim 2, it is characterised in that six pieces of described fan-shaped desktops (3) it is connected by fan-shaped desktop Assembly of pin (57) with the second supporting beam assembly (30), the described second supporting beam assembly (30) It is fixedly connected by 12 backbar bearing pins (82) with the second block set (50), described the second block set (50) and the second centre wheel (24) connect, when desktop is changed into small size desktop from large scale desktop, fan-shaped desktop rotates, and inwardly radially moves；Work as table Face from small size desktop be changed into large scale desktop when, fan-shaped desktop rotates, and outwards radially moves.
5. the convertible round table of Desktop Dimensions according to claim 2, it is characterised in that described the second centre wheel (24) Have two groups of constraint bracket components in vertical direction, including gear constraint is with bearing (66), gear constraint with right support (67) and Left socle (68) is used in gear constraint；Described the second centre wheel (24) is supported by gear constraint with bearing (66), described gear Constraint is supported with bearing (66) by gear constraint right support (67) and gear constraint left socle (68), the constraint of described gear It is fixedly connected with left socle (68) by two left socle attachment screws (68-1) with desktop bottom annulus frame (38), described tooth Wheel constraint is fixedly connected with right support (67) by two right support attachment screws (67-1) with desktop bottom annulus frame (38), institute The two right support attachment screws (67-1) stated are to be threadedly coupled with two pieces of right support contiguous blocks (67-2), described two left branch Frame attachment screw (68-1), two pieces of left socle contiguous blocks (68-2) are threaded connection.
6. the convertible round table of Desktop Dimensions according to claim 2, it is characterised in that when being additionally provided with rotation with lifting Second centre wheel (24) and the first centre wheel (6) sound switching mechanism, the mechanism include cam ring (70), interior roller bearing pin (71), interior roller (72), three axostylus axostyles (73), outer roller bearing pin (74), outer roller (75), external cam (76), evagination wheeling support (77) bearing pin (78), gear pole (79) and external cam positioning sleeve (83), are associated；Described gear pole (79) is connected by gear Connect first bearing pin (80-1), gear connect second bearing pin (80-2) be fixedly connected on the second centre wheel (24), it is described Gear pole (79) is connected by associating bearing pin (78) with three axostylus axostyles (73) with revolute pair, and described three axostylus axostyles (73) pass through interior rolling Roller (72) in sub- bearing pin (71) installation, described three axostylus axostyles (73) install outer roller (75), institute by outer roller bearing pin (74) The 4th backbar (30-4) of the first bearing pin (69-1) that the cam ring (70) stated is connected by cam ring and beam 2 is connected, described The 5th backbar (30-5) of the second bearing pin (69-2) and beam 2 for being connected by cam ring of cam ring (70) be connected, it is described For interior roller (72) in the circular arc portion of cam ring (70), described outer roller (75) is described in the T2 grooves of external cam (76) It is outside that evagination wheeling support (77), which is welded on external cam (76), and described locating rack connecting bolt (61-1) positions through external cam Cover hole, the hole in external cam (76), the hole on desktop bottom annulus frame (38) and the locating rack attaching nut (61-2) on (83) It is jointly that external cam (76) is fixed.
7. the convertible round table of Desktop Dimensions according to claim 1, it is characterised in that the first described cam pack (36) two first roller bearing pins (36-1), two the first poles (36-2), the first block set (36-3), the first seat cushion (36- are included 4), bearing pin (36-5) in two first, the first roller (36-6), 12 jiaos of desktop fulcrums (37), two first cam bearing pins (63), described the first roller (36-6) is to be rotatablely connected with the first roller bearing pin (36-1), the first described roller bearing pin (36-1) is fixedly mounted in the first pole (36-2) hole, and the outer end of bearing pin (36-5) is fixedly mounted in described first In the hole of one pole (36-2), the inner of bearing pin (36-5) is fixedly mounted on the first seat cushion (36-4) hole in described first In, described the first seat cushion (36-4) is fixedly mounted in the first block set (36-3) hole, and described the first block set (36-3) is logical The first cam bearing pin (63) is crossed to be fixedly connected with 12 jiaos of desktop fulcrums (37).
CN201610192820.4A 2016-03-30 2016-03-30 The convertible round table of Desktop Dimensions Active CN105708129B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610192820.4A CN105708129B (en) 2016-03-30 2016-03-30 The convertible round table of Desktop Dimensions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610192820.4A CN105708129B (en) 2016-03-30 2016-03-30 The convertible round table of Desktop Dimensions

Publications (2)

Publication Number Publication Date
CN105708129A CN105708129A (en) 2016-06-29
CN105708129B true CN105708129B (en) 2017-11-24

Family

ID=56159289

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610192820.4A Active CN105708129B (en) 2016-03-30 2016-03-30 The convertible round table of Desktop Dimensions

Country Status (1)

Country Link
CN (1) CN105708129B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107748109B (en) * 2017-09-07 2020-08-04 浙江大学宁波理工学院 Submarine cable bending fatigue characteristic testing machine and testing method
CN108577201B (en) * 2018-04-25 2020-06-16 惠州市耀华宜家实业有限公司 Dining table
CN112315200B (en) * 2020-11-05 2021-08-27 贵州工程应用技术学院 Power-assisted table based on electric power-assisted rotation and adjustment

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20311144U1 (en) * 2003-07-18 2003-10-23 Schulz Andreas Extendable table has extendable sections with deployable infill panels to maintain round shape of table top when extended
GB2396552A (en) * 2002-12-24 2004-06-30 David Boardman Fletcher Expanding table
CN202286896U (en) * 2011-11-01 2012-07-04 徐晓龙 Telescopic round table
CN102669936A (en) * 2012-05-25 2012-09-19 河海大学常州校区 Novel extensible type round table driven by mechanical mechanism
CN202820133U (en) * 2012-07-12 2013-03-27 东莞市豪满庭家具有限公司 Table with size-adjustable table top

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6994032B2 (en) * 2003-04-01 2006-02-07 Century Furniture, Llc. Expandable table
US7464653B2 (en) * 2004-10-13 2008-12-16 Statecraft International Inc. Expansible table

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2396552A (en) * 2002-12-24 2004-06-30 David Boardman Fletcher Expanding table
DE20311144U1 (en) * 2003-07-18 2003-10-23 Schulz Andreas Extendable table has extendable sections with deployable infill panels to maintain round shape of table top when extended
CN202286896U (en) * 2011-11-01 2012-07-04 徐晓龙 Telescopic round table
CN102669936A (en) * 2012-05-25 2012-09-19 河海大学常州校区 Novel extensible type round table driven by mechanical mechanism
CN202820133U (en) * 2012-07-12 2013-03-27 东莞市豪满庭家具有限公司 Table with size-adjustable table top

Also Published As

Publication number Publication date
CN105708129A (en) 2016-06-29

Similar Documents

Publication Publication Date Title
CN105708129B (en) The convertible round table of Desktop Dimensions
CN108451171B (en) Rotary changeable round table
CN108618365A (en) A kind of the rotation splitlevel desktop unfolding mechanism and double layered table top of changeable table
CN206441515U (en) A kind of packaged type animation demonstration device
CN109222432A (en) Multipurpose dining table
CN206699736U (en) The convertible round table of Desktop Dimensions
US11297913B2 (en) Sunshade umbrella with hand-held portable rotatable base mechanism
CN108451253A (en) A kind of urban planning fast disassembly type multilayer displaying device
CN106889759A (en) It is a kind of can automatic deploying and retracting dining table
CN102396888A (en) Adjustable bed table
CN208388108U (en) It is a kind of can auto-folder desktop rectangular desk
CN209135618U (en) A kind of the rotation splitlevel desktop unfolding mechanism and double layered table top of changeable table
CN208388107U (en) A kind of folding table system that outdoor can block
CN207129868U (en) Carry column and cantilever arrangement
CN108762401A (en) A kind of electronic equipment
CN209622320U (en) Column supporting structural for mobile dance screen device
CN203952821U (en) A kind of rotary drawing table
CN208676549U (en) A kind of movable outer sealing edge structure of rotary telescopic dining table
CN208002362U (en) A kind of removable computer pneumatic jack table
CN209788963U (en) Folding table
CN209622368U (en) Double hinged fold mechanisms for mobile dance screen device
CN207075737U (en) Multifunctional rotary size change dining table
CN212325811U (en) Mahjong machine lift tea table
CN208367588U (en) A kind of electronic equipment
CN110448111A (en) Showing stand is used in a kind of sale of clothes

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20181212

Address after: 233010 Huayuan Commercial Building No.2, Yuhui District, Bengbu City, Anhui Province

Patentee after: Bengbu Xinjue Intelligent Technology Co., Ltd.

Address before: No. 26, Xue Yuan Road, Quanshan District, Xuzhou, Jiangsu

Patentee before: Jiangsu Institute of Architectural Technology

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20190109

Address after: No. 26, Xue Yuan Road, Quanshan District, Xuzhou, Jiangsu

Patentee after: Jiangsu Institute of Architectural Technology

Address before: 233010 Huayuan Commercial Building No.2, Yuhui District, Bengbu City, Anhui Province

Patentee before: Bengbu Xinjue Intelligent Technology Co., Ltd.

TR01 Transfer of patent right