CN207383967U - The mechanical extending device of Disassembling sofa - Google Patents

Abstract

The utility model provides a kind of mechanical extending device of Disassembling sofa, belongs to sofa technical field.The mechanical extending device of this Disassembling sofa, including left-hand side part, right side members, switch block and self-locking spring, left-hand side part is fixedly connected with right side members by fixed component, switch block is mounted in left-hand side part or right side members, left-hand side part, right side members are both provided with identical toe board, one bar of foot, two bar of foot, three bar of foot, four bar of foot, small toe board, installation side plate, connecting rod one, preceding STATEMENT OF FEDERALLY SPONSORED, connecting rod four, connecting rod six, rear support, front supporting member, STATEMENT OF FEDERALLY SPONSORED, STATEMENT OF FEDERALLY SPONSORED afterwards, rotating shaft transmission part, back rest, footing, protector, connecting rod three, connecting rod five；Left-hand side part, right side members toe board at be equipped with and can prevent the safe finger pinch device for clamping finger.The utility model is simple in structure, easy to use, and /V is reasonable, and more smooth, promotion quality scale and service life with backrest are unfolded and are collapsed to the leg rest in brandreth.

Description

The mechanical extending device of Disassembling sofa

Technical field

The utility model belongs to sofa technical field, is related to a kind of mechanical extending device, is particularly a kind of Disassembling sofa Mechanical extending device.

Background technology

Sofa is a kind of chair equipped with cushion, and in daily life, sofa has become a kind of very universal Furniture, relatively ancient wood substance seat, existing cloth or cortex sofa can give people to provide more comforts.With people Living standard continuous improvement, requirement of the people to furniture is also higher and higher, and common and sofa that function is single will gradual quilt People give up.

In existing sofa, generally all have the function of that backrest is toppled over and resetted, leg rest expansion is with collapsing, in order to make sofa The regulation performance of middle backrest and leg rest is more flexible, each can individually be controlled the backrest in sofa and leg rest, so as to suitable The posture of having a rest that crowd should be used different.The mechanical extending device generally existing three of current existing sofa is great insufficiently Side：1st, be unfolded and collapse length it is inconsistent, cause mechanical extending device do not open or function sofa sit before Soft Roll collapse influence Appearance；2nd, design is complicated, and step is excessive, and tie point connection mode, limit method are complicated, this causes mechanical extending device integrally to be tied Structure is excessively complicated, reduces the fluency of brandreth operationally, and the possibility that problem occurs in the process of running for brandreth is high；3、 Without design safety finger pinch device, contour structures are heavy, reduce the security reliability of mechanical extending device.

So for those skilled in the art, it need to the backrest and the regulating device of leg rest in existing sofa It is improved, to solve the above problems, makes that the gathering of sofa and expansion are more smooth, and regulation performance is more flexible, so as to for factory Business obtains the consumption market of bigger.

The content of the invention

The purpose of this utility model is that there are the above problems for existing technology, it is proposed that a kind of machinery of Disassembling sofa Extending apparatus, technical problem to be solved in the utility model be how to realize sofa leg rest open and collapse and backrest Angular adjustment.

The purpose of this utility model can be realized by following technical proposal：The mechanical extending device of Disassembling sofa, including Left-hand side part, right side members, switch block and self-locking spring, left-hand side part are fixedly connected with right side members by fixed component, Switch block is mounted in left-hand side part or right side members, which is characterized in that the left-hand side part, right side members are both provided with Identical toe board, one bar of foot, two bar of foot, three bar of foot, four bar of foot, small toe board, installation side plate, connecting rod one, preceding STATEMENT OF FEDERALLY SPONSORED, company Bar four, connecting rod six, rear support, front supporting member, STATEMENT OF FEDERALLY SPONSORED, rear STATEMENT OF FEDERALLY SPONSORED, rotating shaft transmission part, back rest, footing, protector, Connecting rod three, connecting rod five；Toe board is rotatablely connected with one bar of foot, two bar of foot, and one bar of foot is rotatablely connected with three bar of foot, small toe board, Two bar of foot is rotatablely connected with small toe board, three bar of foot, four bar of foot, and three bar of foot is rotatablely connected with installation side plate, four bar of foot and connecting rod 6th, connecting rod five, installation side plate rotation connection, connecting rod six are rotatablely connected with rotating shaft transmission part, installation side plate and four bar of foot, foot three Bar, rear STATEMENT OF FEDERALLY SPONSORED, back rest, the rotation connection of preceding STATEMENT OF FEDERALLY SPONSORED, preceding STATEMENT OF FEDERALLY SPONSORED are rotatablely connected with connecting rod four, front supporting member, front support Part is rotatablely connected with connecting rod three, footing, and rear STATEMENT OF FEDERALLY SPONSORED is rotatablely connected with connecting rod three, installation side plate, connecting rod five, STATEMENT OF FEDERALLY SPONSORED and connecting rod 4th, rear support, connecting rod one, installation side plate rotation connection, connecting rod one are rotatablely connected with back rest, and protector is consolidated with installation side plate Fixed connection；The left-hand side part, right side members are both provided with the first identical limiting bush, the second limiting bush, the 3rd /V Bushing, the 4th limiting bush, the 5th limiting bush and self-locking spring, the first limiting bush are mounted on three bar of foot, the second /V Bushing, the 5th limiting bush are mounted in STATEMENT OF FEDERALLY SPONSORED, and the 3rd limiting bush is mounted in preceding STATEMENT OF FEDERALLY SPONSORED, the installation of the 4th limiting bush On rotating shaft transmission part, the first confined planes, the second confined planes are provided on three bar of foot, the 3rd /V is provided in rear support Face is provided with the 4th confined planes, the 5th confined planes, the 6th confined planes in installation side plate, the 7th confined planes is provided on connecting rod six, The tenth confined planes are provided on rotating shaft transmission part, the first limiting bush can coordinate with the first confined planes or the second confined planes, the Two limiting bushs can coordinate with the 3rd confined planes, and the 3rd limiting bush can coordinate with the 4th confined planes or the 5th confined planes, 4th limiting bush can coordinate with the 7th confined planes or the tenth confined planes, and the 5th limiting bush can match somebody with somebody with the 6th confined planes It closes, self-locking spring is mounted between left-hand side part, the installation side plate of right side members, connecting rod six；The left-hand side part, right side The safe finger pinch device for clamping finger can be prevented by being equipped at the toe board of part.

The mechanical extending device of this Disassembling sofa optimizes the External Shape of a active sofa mechanical stretching device, subtracts Lack the number of steps of part so that part connection mode, /V design are more reasonable, and the expansion of brandreth leg rest is more smooth with collapsing, Backrest is toppled over and is resetted more smooth.

For the mechanical extending device of this Disassembling sofa in expansion and reset, running orbit is close to equal (mechanical extending device When opening up open and close, function sofa leg and the distance of cushion turning point, leg tail end are basically unchanged), greatly reduce function sand It is tight and the phenomenon that collapse corrugation and open not smooth problem that rear Soft Roll is opened in development, improves and runs smooth degree, quality controllable Degree, coefficient safe to use, service life.

In the mechanical extending device of above-mentioned Disassembling sofa, the toe board is rotated by the second shaft and two bar of foot Connection is rotatablely connected by first rotating shaft and one bar of foot, one bar of foot by the 4th shaft and the rotation connection of small toe board, pass through the Five shafts are rotatablely connected with three bar of foot, and small toe board is rotatablely connected by the 3rd shaft and two bar of foot, and two bar of foot passes through the 6th turn Axis is rotatablely connected with the rotation connection of three bar of foot, by the 7th shaft and four bar of foot, and three bar of foot passes through eighth-turn axis and installation side plate Rotation connection, four bar of foot are rotatablely connected with connecting rod six by the 9th shaft, be rotatablely connected by the tenth shaft and connecting rod five, passed through 22nd shaft is rotatablely connected with installation side plate, and connecting rod six is rotatablely connected by the 23rd shaft and rotating shaft transmission part, even Bar five is rotatablely connected by the 20th shaft and rear STATEMENT OF FEDERALLY SPONSORED, and rear STATEMENT OF FEDERALLY SPONSORED is rotated by the 32nd shaft and installation side plate to be connected It connects, be rotatablely connected by the 13rd shaft and connecting rod three, connecting rod three is rotatablely connected by the 12nd shaft and front supporting member, preceding branch Support member is rotatablely connected by the 21st shaft and footing, is rotatablely connected by the 11st shaft and preceding STATEMENT OF FEDERALLY SPONSORED, preceding STATEMENT OF FEDERALLY SPONSORED It is rotatablely connected, is rotatablely connected by the 20th eighth-turn axis and installation side plate, connecting rod four-way by the 29th shaft and connecting rod four It crosses the 19th shaft to be rotatablely connected with STATEMENT OF FEDERALLY SPONSORED, STATEMENT OF FEDERALLY SPONSORED is rotatablely connected by the 14th shaft and rear support, passes through the tenth Eighth-turn axis is rotatablely connected with connecting rod one, is rotatablely connected by the 25th shaft and installation side plate, and connecting rod one passes through the 16th turn Axis is rotatablely connected with back rest, and rear support is rotatablely connected by the 17th shaft and footing, and back rest passes through the 15th shaft It is rotatablely connected with installation side plate, protector is fixed by the first mounting hole, the second mounting hole, the 3rd mounting hole and installation side plate to be connected It connects.

In the mechanical extending device of above-mentioned Disassembling sofa, the switch block is by cable support, drawstring and drag-line Switch forms, and is provided with the first spring mounting hole, drag-line mounting hole, cable support mounting hole in installation side plate, is set on connecting rod six It is equipped with second spring mounting hole, self-locking spring both ends are hung in the first snap mounting hole, on second spring mounting hole, drag-line branch Frame is fixed on by cable support mounting hole in installation side plate, and is passed through the 24th shaft and be rotatablely connected with installation side plate, is drawn One end of rope switchs connecting hole by a drag-line and is connected with cable support, and the other end of drawstring is opened through drag-line mounting hole with drag-line Connection connects.

In the mechanical extending device of above-mentioned Disassembling sofa, the fixed component includes rotating square tube, bottom connection Pipe, preceding stable pipe, rear stable pipe and torsion resistant tube, preceding stable pipe are fixedly connected on the front supporting member of left-hand side part, right side members, Stablize pipe afterwards and be fixedly connected on left-hand side part, in the rear support of right side members, torsion resistant tube is fixedly connected on left-hand side part, right side In the STATEMENT OF FEDERALLY SPONSORED of component, rotate square tube and be fixedly connected on the rotating shaft transmission part of left-hand side part, right side members, bottom connecting tube point It is not fixedly connected on the footing of left-hand side part, right side members.

In the mechanical extending device of above-mentioned Disassembling sofa, the safe finger pinch device includes five bar of foot, foot six Bar strengthens torsional spring one and strengthens torsional spring two, and above-mentioned toe board is rotatablely connected by the 31st shaft and six bar of foot, described Reinforcement torsional spring one is set in the 31st shaft and passes through the first torsional spring mounting hole, the flexible connection of the second torsional spring mounting hole, foot Six bars are rotatablely connected by the 30th shaft and five bar of foot, and the reinforcement torsional spring two is set in the 30th shaft and passes through the Three torsional spring mounting holes, the flexible connection of the 4th torsional spring mounting hole, five bar of foot are rotatablely connected by the 26th shaft and one bar of foot, are logical It crosses the 27th shaft to be rotatablely connected with two bar of foot, the toe board is equipped with the 6th limiting bush, and six bar of foot is equipped with energy Enough the 9th confined planes with the cooperation of the 6th limiting bush, six bar of foot are equipped with the 7th limiting bush, and five bar of foot is equipped with can be with 8th confined planes of the 7th limiting bush cooperation.

Compared with prior art, the utility model has the following advantages：

1st, the utility model can be widely applied to single position, Double-bit, three people position, theater sofa, corner sofa design etc. Multiple combinations design, and make things convenient for customers with a large amount of new products of a serial product development.

2nd, the utility model can be adapted for manual and electronic mode, may be directly applied to circular drag-line type, middle position drag-line The manual modes such as type, built-in handle type, external joystick type control, and go back useable electric moter drive control.

3rd, the safe operation performance for adding safe finger pinch device, improving user of the utility model.

4th, the utility model applies also for chair lift Functional Design, due to structure optimization, improves the stream of function sofa Smooth degree and comfort level and the class for improving sofa.

5th, the utility model has carried out again modular construction composition, External Shape and step, rotating joint and /V Design, optimizes the structure of active sofa mechanical stretching device, mechanical extending device overall operation is more smooth, can make user More comfortable experience functions sofa, is conducive to the exploitation of sofa function, enriches the kind of function sofa, and operation is more flowed Freely, it is more widely applied, it is convenient and practical.

Description of the drawings

The front schematic view that Fig. 1 is the utility model when leg rest collapses.

Fig. 2 is schematic diagram behind Fig. 1.

The front schematic view that Fig. 3 is the utility model when leg rest is fully deployed.

Fig. 4 is schematic diagram behind Fig. 3.

The front schematic view that Fig. 5 is the utility model when leg rest is fully deployed and backrest is toppled over completely.

Fig. 6 is schematic diagram behind Fig. 5.

Fig. 7 is the connection structure diagram of safe finger pinch device in the utility model.

Fig. 8 is the one visual angle connection structure diagram of safe finger pinch device in the utility model.

Fig. 9 be in the utility model safe finger pinch device secondly visual angle connection structure diagram.

View when Figure 10 is the opening operation of safe finger pinch device in the utility model.

Another view when Figure 11 is the opening operation of safe finger pinch device in the utility model.

The attachment structure schematic diagram that Figure 12 is the utility model when leg rest collapses completely.

In figure：1- toe boards；Two bar of 2- feet；Three bar of 3- feet；STATEMENT OF FEDERALLY SPONSORED before 4-；5- connecting rods three；6- installation side plates； STATEMENT OF FEDERALLY SPONSORED after 7-；8- protectors；9- rear supports；10- back rests；11- connecting rods one；12- footing；13- STATEMENT OF FEDERALLY SPONSOREDs； 14- connecting rods four；15- front supporting members；The small toe boards of 16-；17- self-locking springs；One bar of 18- feet；Four bar of 19- feet；20- Connecting rod six；21- connecting rods five；22- drag-lines switch；23- cable supports；24- rotating shaft transmission parts；The 3rd shafts of 25-；26- 6th shaft；The first limiting bushs of 27-；28- eighth-turn axis；The 11st shafts of 29-；The 13rd shafts of 30-；31- second Limiting bush；The 14th shafts of 32-；The 15th shafts of 33-；The 16th shafts of 34-；The second mounting holes of 35-；36- the 3rd Mounting hole；The 17th shafts of 37-；The tenth eighth-turn axis of 38-；The 19th shafts of 39-；The 20th shafts of 40-；41- the 20th One shaft；The 12nd shafts of 42-；The tenth shafts of 43-；The 9th shafts of 44-；The 7th shafts of 45-；The 5th shafts of 46-； The 4th shafts of 47-；The second shafts of 48-；49- first rotating shafts；The 23rd shafts of 50-；The 4th limiting bushs of 51-；52- 24th shaft；The 5th limiting bushs of 53-；The 25th shafts of 54-；55- cable support mounting holes；56- first is solid Determine hole；57- drag-lines switch connecting hole；The 3rd limiting bushs of 58-；The 22nd shafts of 59-；The 20th eighth-turn axis of 60-； The 3rd confined planes of 61-；The 29th shafts of 62-；The first confined planes of 63-；The second confined planes of 64-；65- second springs are pacified Fill hole；The 6th confined planes of 66-；67- drag-line mounting holes；The 5th confined planes of 68-；The 4th confined planes of 69-；The 7th /Vs of 70- Face；The first spring mounting holes of 71-；The tenth confined planes of 72-；The 32nd shafts of 73-；74- strengthens torsional spring one；75- the 3rd 11 shafts；76- the first torsional spring mounting holes；77- the second torsional spring mounting holes；Six bar of 78- feet, the 4th torsional spring mounting holes of 79-, Five bar of 80- feet, the 6th limiting bushs of 81-, the 30th shafts of 82-, the 3rd torsional spring mounting holes of 83-, the 26th turn of 84- Stablize before axis, the 7th limiting bushs of 85-, the 8th confined planes of 86-, the 9th confined planes of 87-, 88- bottoms connecting tube, 89- Pipe, 90- stablize pipe, the 27th shafts of 93- after rotating square tube, 91- torsion resistant tubes, 92-；94- strengthens torsional spring two.

Specific embodiment

It is specific embodiment of the utility model and with reference to attached drawing below, the technical solution of the utility model is made further Description, but the utility model is not limited to these embodiments.

As shown in figs. 1 to 6, the mechanical extending device of Disassembling sofa, including left-hand side part, right side members, switch block and Self-locking spring 17, left-hand side part are fixedly connected with right side members by fixed component, switch block be mounted on left-hand side part or In right side members.Left-hand side part, right side members are both provided with identical toe board 1, one bar 18 of foot, two bar 2 of foot, three bar 3 of foot, foot It is four bars 19, small toe board 16, installation side plate 6, connecting rod 1, preceding STATEMENT OF FEDERALLY SPONSORED 4, connecting rod 4 14, connecting rod 6 20, rear support 9, preceding Supporting item 15, STATEMENT OF FEDERALLY SPONSORED 13, rear STATEMENT OF FEDERALLY SPONSORED 7, rotating shaft transmission part 24, back rest 10, footing 12, protector 8, connecting rod 35, connecting rod 5 21.Toe board 1 is rotatablely connected with one bar 18 of foot, two bar 2 of foot, and one bar 18 of foot is rotatablely connected with three bar 3 of foot, small toe board 16, Two bar 2 of foot is rotatablely connected with small toe board 16, three bar 3 of foot, four bar 19 of foot, and three bar 19 of foot is rotatablely connected with installation side plate 6, foot four Bar 19 is rotatablely connected with connecting rod 6 20, connecting rod 5 21, installation side plate 6, and connecting rod 6 20 is rotatablely connected with rotating shaft transmission part 24, installation Side plate 6 is rotatablely connected with four bar 19 of foot, three bar 3 of foot, rear STATEMENT OF FEDERALLY SPONSORED 7, back rest 10, preceding STATEMENT OF FEDERALLY SPONSORED 4, preceding STATEMENT OF FEDERALLY SPONSORED 4 and connecting rod 4 14, front supporting member 15 is rotatablely connected, and front supporting member 15 is rotatablely connected with connecting rod 35, footing 12, rear STATEMENT OF FEDERALLY SPONSORED 7 and connecting rod three 5th, installation side plate 6, connecting rod 5 21 are rotatablely connected, STATEMENT OF FEDERALLY SPONSORED 13 and connecting rod 4 14, rear support 9, connecting rod 1, installation side plate 6 Rotation connection, connecting rod 1 are rotatablely connected with back rest 10, and protector 8 is fixedly connected with installation side plate 6.

Left-hand side part, right side members are both provided with the first identical limiting bush 27, the second limiting bush 31, the 3rd /V Bushing 58, the 4th limiting bush 51, the 5th limiting bush 53 and self-locking spring 17, the first limiting bush 27 are mounted on three bar 3 of foot On, the second limiting bush 31, the 5th limiting bush 53 are mounted in STATEMENT OF FEDERALLY SPONSORED 13, and the 3rd limiting bush 58 is mounted on preceding STATEMENT OF FEDERALLY SPONSORED On 4, the 4th limiting bush 51 is mounted on rotating shaft transmission part 24, and the first confined planes 63, the second confined planes are provided on three bar 3 of foot 64, be provided with the 3rd confined planes 61 in rear support 9, be provided in installation side plate 6 the 4th confined planes 69, the 5th confined planes 68, 6th confined planes 66 are provided with the 7th confined planes 70 on connecting rod 6 20, the tenth confined planes 72 are provided on rotating shaft transmission part 24, and One limiting bush 27 can be with the 64 tangent cooperation of the first confined planes 63 or the second confined planes, and the second limiting bush 31 can be with the 3rd 61 tangent cooperation of confined planes, the 3rd limiting bush 58 can with the 68 tangent cooperation of the 4th confined planes 69 or the 5th confined planes, the 4th Limiting bush 51 can be limited with the 72 tangent cooperation of the 7th confined planes 70 or the tenth confined planes, the 5th limiting bush 53 with the 6th 66 tangent cooperation of plane, self-locking spring 17 are mounted between left-hand side part, the installation side plate of right side members 6, connecting rod 6 20.

Toe board 1 is rotatablely connected with two bar 2 of foot by the second shaft 48, rotates company by first rotating shaft 49 and one bar 18 of foot It connects, one bar 18 of foot is rotatablely connected with small toe board 16 by the 4th shaft 47, rotates company with three bar 3 of foot by the 5th shaft 46 It connects, small toe board 16 is rotatablely connected by the 3rd shaft 25 and two bar 2 of foot, and two bar 2 of foot passes through 3 turns of the 6th shaft 26 and three bar of foot Dynamic connection is rotatablely connected by the 7th shaft 45 and four bar 19 of foot, and three bar 3 of foot is rotated by eighth-turn axis 28 and installation side plate 6 Connection, four bar 19 of foot are rotatablely connected with connecting rod 6 20 by the 9th shaft 44, are connected by the tenth shaft 43 and the rotation of connecting rod 5 21 It connects, be rotatablely connected by the 22nd shaft 59 with installation side plate 6, connecting rod 6 20 passes through the 23rd shaft 50 and rotating shaft transmission Part 24 is rotatablely connected, and connecting rod 5 21 is rotatablely connected by the 20th shaft 40 and rear STATEMENT OF FEDERALLY SPONSORED 7, and rear STATEMENT OF FEDERALLY SPONSORED 7 passes through the 30th Two shafts 73 are rotatablely connected with installation side plate 6, are rotatablely connected by the 13rd shaft 30 with connecting rod 35, and connecting rod 35 passes through the tenth Two shafts 42 are rotatablely connected with front supporting member 15, and front supporting member 15 is rotatablely connected with footing 12 by the 21st shaft 41, led to It crosses the 11st shaft 29 to be rotatablely connected with preceding STATEMENT OF FEDERALLY SPONSORED 4, preceding STATEMENT OF FEDERALLY SPONSORED 4 is rotated by the 29th shaft 62 with connecting rod 4 14 to be connected It connects, be rotatablely connected by the 20th eighth-turn axis 60 with installation side plate 6, connecting rod 4 14 passes through 13 turns of the 19th shaft 39 and STATEMENT OF FEDERALLY SPONSORED Dynamic connection, STATEMENT OF FEDERALLY SPONSORED 13 are rotatablely connected by the 14th shaft 32 with rear support 9, by the tenth eighth-turn axis 38 and connecting rod 1 Rotation connection is rotatablely connected by the 25th shaft 54 with installation side plate 6, and connecting rod 1 passes through the 16th shaft 34 and backrest Part 10 is rotatablely connected, and rear support 9 is rotatablely connected by the 17th shaft 37 with footing 12, and back rest 10 passes through the 15th shaft 33 are rotatablely connected with installation side plate 6, and protector 8 passes through the first mounting hole 56, the second mounting hole 35, the 3rd mounting hole 36 and installation Side plate 6 is fixedly connected.

As shown in Fig. 2, switch block is made of cable support 23, drawstring and drag-line switch 22, it is provided in installation side plate 6 First spring mounting hole 71, drag-line mounting hole 67, cable support mounting hole 55 are provided with second spring mounting hole on connecting rod 6 20 65,17 both ends of self-locking spring are hung in the first spring mounting hole 71, on second spring mounting hole 65, and cable support 23 passes through drawing Rope rack mounting apertures 55 are fixed in installation side plate 6, and are passed through the 24th shaft 52 and be rotatablely connected with installation side plate 6, drawstring One end connecting hole 57 switched by drag-line be connected with cable support 23, the other end of drawstring is through drag-line mounting hole 67 and drag-line 22 connection of switch.When between the 9th shaft 44, the 23rd shaft 50, the 4th limiting bush 51 angle α for 0 degree when (such as Fig. 2 institutes Show), i.e., the distance between the 9th shaft 44, the 23rd shaft 50 are farthest, generate inflection point herein；When connecting rod 6 20 is up swung to When 7th confined planes 70 are in contact with the 4th limiting bush 51, active sofa mechanical stretching device is in locking state, meanwhile, from It locks spring 17 and generates a pulling force F1 (as shown in Figure 2), active sofa mechanical stretching device is made to play the role of self-locking.

As shown in Fig. 7~11, left-hand side part, right side members toe board 1 at be equipped with the peace that can prevent clamping finger Full finger pinch device, the safe finger pinch device include five bar 80 of foot, six bar 78 of foot, strengthen torsional spring 1 and strengthen torsional spring two 94, above-mentioned toe board 1 is rotatablely connected by the 31st shaft 75 and six bar 78 of foot, and the reinforcement torsional spring 1 is located at In 31 shafts 75 and pass through the first torsional spring mounting hole 76, the second torsional spring mounting hole 77 is flexibly connected, six bar 78 of foot passes through 30 shafts 82 are rotatablely connected with five bar 80 of foot, and the reinforcement torsional spring 2 94 is located in the 30th shaft 82 and passes through the 3rd torsion Spring mounting hole 83, the 4th torsional spring mounting hole 79 are flexibly connected, and five bar 80 of foot is rotated by the 26th shaft 84 with one bar of foot to be connected It connects, be rotatablely connected by the 27th shaft 93 and two bar 2 of foot.Toe board 1 is equipped with the 6th limiting bush 81, on six bar 78 of foot Equipped with the 9th confined planes 87 that can coordinate with the 6th limiting bush 81, six bar 78 of foot is equipped with the 7th limiting bush 85, foot five Bar 80 is equipped with the 8th confined planes 86 that can coordinate with the 7th limiting bush 85.

As shown in figure 12, fixed component includes rotating square tube 90, bottom connecting tube 88, preceding stable pipe 89, rear stable pipe 92 With torsion resistant tube 91, preceding stable pipe 89 is fixedly connected on the front supporting member 15 of left-hand side part, right side members, and rear pipe 92 of stablizing is fixed It is connected to left-hand side part, in the rear support of right side members 9, torsion resistant tube 91 is fixedly connected on the connection of left-hand side part, right side members On moving part 13, rotate square tube 90 and be fixedly connected on the rotating shaft transmission part 24 of left-hand side part, right side members, bottom connecting tube 88 is divided It is not fixedly connected on the footing 12 of left-hand side part, right side members, the equal generally use bolt of these pipe fittings in fixed component is consolidated Fixed connection.

Thus the Multifunctional mechanical extending device of movable sofa of complete set is constituted.

Fig. 2~Fig. 3 is that active sofa mechanical stretching device is collapsed from leg rest to the process being fully deployed, light by user It is light to stir drag-line switch 22, cable support 23 is driven by the drawstring being connected on drag-line switch 22, cable support 23 generates one A downward power F2 (as shown in Figure 2) pushes rotating shaft transmission part 24 aside, and rotating shaft transmission part 24 passes through the 23rd shaft 50 and connecting rod 6 20 rotation connections, connecting rod 6 20 is rotatablely connected by the 9th shaft 44 and four bar 19 of foot, four bar 19 of foot by the 7th shaft 45, Tenth shaft 43, the 22nd shaft 59 and two bar 2 of foot, connecting rod 5 21, installation side plate 6 are rotatablely connected, and two bar 2 of foot passes through the 6th Shaft 26, the 3rd shaft 25, the second shaft 48 and three bar 3 of foot, small toe board 16, toe board 1 are rotatablely connected, and one bar 18 of foot passes through First rotating shaft 49, the 4th shaft 47, the 5th shaft 46 and toe board 1, small toe board 16, three bar 3 of foot are rotatablely connected, installation side plate 6 pass through eighth-turn axis 28, the 15th shaft 33, the 25th shaft 54, the 22nd shaft 59, the 32nd shaft 73, 20 eighth-turn axis 60 are rotatablely connected with three bar 3 of foot, four bar 19 of foot, back rest 10, rear STATEMENT OF FEDERALLY SPONSORED 7, preceding STATEMENT OF FEDERALLY SPONSORED 4, and guard member 8 is logical It crosses the first mounting hole 56, the second mounting hole 35, the 3rd mounting hole 36 to be fixedly connected with installation side plate 6, rear STATEMENT OF FEDERALLY SPONSORED 7 passes through the tenth Three shafts 30, the 20th shaft 40 and connecting rod 35, connecting rod 5 21 are rotatablely connected, and front supporting member 15 passes through the 12nd shaft 42, the 11 shafts 29, the 21st shaft 41 and preceding STATEMENT OF FEDERALLY SPONSORED 4, connecting rod 35, footing 12 are rotatablely connected, and STATEMENT OF FEDERALLY SPONSORED 13 passes through the tenth Nine shafts 39, the tenth eighth-turn axis 38, the 14th shaft 32, the 25th shaft 54 and rear support 9, connecting rod 1, installation side Plate 6, connecting rod 4 14 are rotatablely connected, and connecting rod 4 14 is rotatablely connected by the 29th shaft 62 and preceding STATEMENT OF FEDERALLY SPONSORED 4, and connecting rod 1 is logical It crosses the 16th shaft 34 to be rotatablely connected with back rest 10, rear support 9 is rotatablely connected by the 17th shaft 37 with footing 12.

When leg is in rounding state, the tenth /V of the 4th limiting bush 51 and connecting rod 6 20 on rotating shaft transmission part 24 Face 72 has been in contact locking position-limiting action, the 5th limiting bush 53, the second limiting bush 31 in STATEMENT OF FEDERALLY SPONSORED 13 respectively with rear branch The 6th confined planes 66 on the 3rd confined planes 61, installation side plate 6 in support member 9 are in contact, the first limiting bush on three bar 3 of foot 27 are in contact with the second confined planes 64 on two bar 2 of foot, on the 3rd limiting bush 58 and installation side plate 6 in preceding STATEMENT OF FEDERALLY SPONSORED 4 4th confined planes 69 are in contact, and (to be generated when there are one driving forces it is often the case that switching 22 pulling cable supports 23 by drag-line Directed force F 2 (as shown in Figure 2)) when acting on rotating shaft transmission part 24, rotating shaft transmission part 24 is rotated around square tube 90 is rotated, Therefore rotating shaft transmission part 24 passes to connecting rod 6 20 further through the 23rd shaft 50 and generates a forward movement, and connecting rod six 20 make four bar 19 of foot produce relative rotation around the 22nd shaft 59 further through the 9th shaft 44, and four bar 19 of foot is further through the 7th Shaft 45 drives two bar 2 of foot to move, and two bar of foot makes three bar 3 of foot generate opposite turn around eighth-turn axis 28 by the 6th shaft 26 Dynamic, three bar 3 of foot drives one bar 18 of foot to move by the 5th shaft 46, and one bar 18 of foot, two bar 2 of foot pass through the second shaft 48, first Shaft 49 drives toe board 1 to produce relative rotation, further through the 3rd shaft 25, the 4th shaft 47 small toe board 16 is driven to generate phase To rotating, therefore entire movable leg leg rest is made to generate a stretching routine, when the first limiting bush 27 and foot on three bar 3 of foot The first confined planes 63 on two bars 2 are in contact, and generate a position-limiting action, and active leg rest reaches the fully extended state.

During active leg rest stretches, four bar 19 of foot drives connecting rod 5 21 to travel forward by the tenth shaft 43, even Bar 5 21 makes rear STATEMENT OF FEDERALLY SPONSORED 7 be rotated around the 32nd shaft 73 further through the 20th shaft 40, and rear STATEMENT OF FEDERALLY SPONSORED 7 passes through the 13rd Shaft 30 drives connecting rod 35 to travel forward, and rear STATEMENT OF FEDERALLY SPONSORED 7 makes front supporting member 15 surround the 21st turn by the 12nd shaft 42 Axis 41 rotates, and STATEMENT OF FEDERALLY SPONSORED 4 travels forward before front supporting member 15 is driven by the 11st shaft 29, and preceding STATEMENT OF FEDERALLY SPONSORED 4 surrounds the 20th Eighth-turn axis 60 rotates, and further through the 29th shaft 62 connecting rod 4 14 is driven to travel forward, connecting rod 4 14 is further through the 19th turn Axis 39 drives STATEMENT OF FEDERALLY SPONSORED 13 to be rotated around the 25th shaft 54, and STATEMENT OF FEDERALLY SPONSORED 13 passes through the 14th shaft 32, the tenth eighth-turn axis 38 Rear support 9, connecting rod 1 is driven to travel forward.During this, back rest 10, connecting rod 1, footing 12, front supporting member 15 it Between the 16th shaft 34, the 15th shaft 33, the tenth eighth-turn axis 38, the 19th shaft 39,42, the 13rd turns of the 12nd shaft Axis 30 does not produce relative rotation, therefore rear support 9, STATEMENT OF FEDERALLY SPONSORED 13, preceding STATEMENT OF FEDERALLY SPONSORED 7, rear STATEMENT OF FEDERALLY SPONSORED 7 are stretched in movable leg leg rest It is an entirety during exhibition.

Fig. 4~Fig. 5 is active sofa mechanical stretching device is fully extended to the process that backrest topples over completely from leg rest, when Apply the power F3 (as shown in figure 5, under normal conditions i.e. by the gravity of user itself) in a such as figure direction in back rest 10, Back rest 10 makes connecting rod 1 by the tenth eighth-turn axis 38 STATEMENT OF FEDERALLY SPONSORED 13 be driven to surround the 20th around the rotation of the 15th shaft 33 Five shafts 54 rotate, and further through the 14th shaft 32 rear support 9 are driven to travel forward, STATEMENT OF FEDERALLY SPONSORED 13 passes through the 19th shaft 39 STATEMENT OF FEDERALLY SPONSORED 4 is rotated around the 20th eighth-turn axis 60 before driving the pulling of connecting rod 4 14, and preceding STATEMENT OF FEDERALLY SPONSORED 4 is in the band of the 29th shaft 62 Dynamic lower the 11st shaft 29 that passes through drives front supporting member 15 to travel forward around the 21st shaft 41, and connecting rod 35 passes through the tenth Two shafts 42 are rotatablely connected with rear STATEMENT OF FEDERALLY SPONSORED 7, and during this, the shaft between leg part, installation side plate 6, rear STATEMENT OF FEDERALLY SPONSORED 7 is not Generate relative motion.The 3rd limiting bush 58 in current STATEMENT OF FEDERALLY SPONSORED 4 is in contact with the 5th confined planes 68 in installation side plate 6 When, a position-limiting action is generated, backrest is in the state toppled over completely.

The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute Described specific embodiment can be done various modifications or additions or using similar by belonging to those skilled in the art Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.

Although above-mentioned term is used more herein, it does not preclude the possibility of using other terms.Use these Term is used for the purpose of more easily describing and explaining the essence of the utility model；It is construed as any additional limit System is all contrary to the spirit of the present invention.

Claims (5)

1. the mechanical extending device of Disassembling sofa, including left-hand side part, right side members, switch block and self-locking spring, left side Part is fixedly connected with right side members by fixed component, and switch block is mounted in left-hand side part or right side members, feature It is, the left-hand side part, right side members are both provided with identical toe board, one bar of foot, two bar of foot, three bar of foot, four bar of foot, small Toe board, installation side plate, connecting rod one, preceding STATEMENT OF FEDERALLY SPONSORED, connecting rod four, connecting rod six, rear support, front supporting member, STATEMENT OF FEDERALLY SPONSORED, rear linkage Part, rotating shaft transmission part, back rest, footing, protector, connecting rod three, connecting rod five；Toe board is rotatablely connected with one bar of foot, two bar of foot, One bar of foot is rotatablely connected with three bar of foot, small toe board, and two bar of foot is rotatablely connected with small toe board, three bar of foot, four bar of foot, three bar of foot It is rotatablely connected with installation side plate, four bar of foot is rotatablely connected with connecting rod six, connecting rod five, installation side plate, connecting rod six and rotating shaft transmission part Rotation connection, installation side plate and four bar of foot, three bar of foot, rear STATEMENT OF FEDERALLY SPONSORED, back rest, preceding STATEMENT OF FEDERALLY SPONSORED are rotatablely connected, preceding STATEMENT OF FEDERALLY SPONSORED with Connecting rod four, front supporting member rotation connection, front supporting member are rotatablely connected with connecting rod three, footing, rear STATEMENT OF FEDERALLY SPONSORED and connecting rod three, installation side Plate, connecting rod five are rotatablely connected, and STATEMENT OF FEDERALLY SPONSORED is rotatablely connected with connecting rod four, rear support, connecting rod one, installation side plate, and connecting rod one is with leaning on Back piece is rotatablely connected, and protector is fixedly connected with installation side plate；The left-hand side part, right side members are both provided with identical first Limiting bush, the second limiting bush, the 3rd limiting bush, the 4th limiting bush, the 5th limiting bush and self-locking spring, the first limit Position bushing is mounted on three bar of foot, and the second limiting bush, the 5th limiting bush are mounted in STATEMENT OF FEDERALLY SPONSORED, the installation of the 3rd limiting bush In preceding STATEMENT OF FEDERALLY SPONSORED, the 4th limiting bush is mounted on rotating shaft transmission part, and the first confined planes, the second /V are provided on three bar of foot Face is provided with the 3rd confined planes in rear support, the 4th confined planes, the 5th confined planes, the 6th /V is provided in installation side plate Face is provided with the 7th confined planes on connecting rod six, the tenth confined planes is provided on rotating shaft transmission part, the first limiting bush can be with One confined planes or the cooperation of the second confined planes, the second limiting bush can coordinate with the 3rd confined planes, and the 3rd limiting bush can be with 4th confined planes or the cooperation of the 5th confined planes, the 4th limiting bush can coordinate with the 7th confined planes or the tenth confined planes, and the 5th Limiting bush can coordinate with the 6th confined planes, and self-locking spring is mounted on left-hand side part, the installation side plate of right side members, connecting rod six Between, the left-hand side part, right side members toe board at be equipped with and can prevent the safe finger pinch device for clamping finger.

2. the mechanical extending device of Disassembling sofa according to claim 1, which is characterized in that the toe board passes through second Shaft is rotatablely connected with the rotation connection of two bar of foot, by first rotating shaft and one bar of foot, and one bar of foot passes through the 4th shaft and small leg rest Plate rotation connection is rotatablely connected by the 5th shaft and three bar of foot, and small toe board is rotatablely connected by the 3rd shaft and two bar of foot, Two bar of foot is rotatablely connected by the 6th shaft and three bar of foot, by the 7th shaft and the rotation connection of four bar of foot, and three bar of foot passes through the Eighth-turn axis is rotatablely connected with installation side plate, and four bar of foot is rotatablely connected, by the 9th shaft and connecting rod six by the tenth shaft and company Bar five is rotatablely connected, is rotatablely connected by the 22nd shaft and installation side plate, and connecting rod six passes through the 23rd shaft and shaft Driving member is rotatablely connected, and connecting rod five is rotatablely connected by the 20th shaft and rear STATEMENT OF FEDERALLY SPONSORED, and rear STATEMENT OF FEDERALLY SPONSORED passes through the 32nd turn Axis is rotatablely connected with installation side plate, is rotatablely connected by the 13rd shaft and connecting rod three, and connecting rod three is by the 12nd shaft with before Supporting item is rotatablely connected, and front supporting member is rotatablely connected by the 21st shaft and footing, passes through the 11st shaft and preceding linkage Part is rotatablely connected, and preceding STATEMENT OF FEDERALLY SPONSORED is rotatablely connected, by the 29th shaft and connecting rod four by the 20th eighth-turn axis and installation side Plate is rotatablely connected, and connecting rod four is rotatablely connected by the 19th shaft and STATEMENT OF FEDERALLY SPONSORED, and STATEMENT OF FEDERALLY SPONSORED passes through the 14th shaft and rear support Part rotation connection is rotatablely connected by the tenth eighth-turn axis and connecting rod one, is rotatablely connected by the 25th shaft and installation side plate, Connecting rod one is rotatablely connected by the 16th shaft and back rest, and rear support is rotatablely connected by the 17th shaft and footing, is leaned on Back piece is rotatablely connected by the 15th shaft and installation side plate, and protector is fixed by the first mounting hole, the second mounting hole, the 3rd Hole is fixedly connected with installation side plate.

3. the mechanical extending device of Disassembling sofa according to claim 1 or 2, which is characterized in that the switch block by Cable support, drawstring and drag-line switch form, and the first spring mounting hole, drag-line mounting hole, drag-line branch are provided in installation side plate Frame mounting hole is provided with second spring mounting hole on connecting rod six, and self-locking spring both ends are hung in the first snap mounting hole, second On spring mounting hole, cable support is fixed on by cable support mounting hole in installation side plate, and pass through the 24th shaft with Installation side plate is rotatablely connected, and one end of drawstring switchs connecting hole by a drag-line and is connected with cable support, and the other end of drawstring is worn Drag-line mounting hole is crossed to connect with drag-line switch.

4. the mechanical extending device of Disassembling sofa according to claim 1 or 2, which is characterized in that the fixed component bag It includes and rotates square tube, bottom connecting tube, preceding stable pipe, rear stablizes pipe and torsion resistant tube, preceding stable pipe are fixedly connected on left-hand side part, the right side On the front supporting member of sidepiece part, rear pipe of stablizing is fixedly connected on left-hand side part, in the rear support of right side members, and torsion resistant tube is fixed It is connected to left-hand side part, in the STATEMENT OF FEDERALLY SPONSORED of right side members, rotates that square tube is fixedly connected on left-hand side part, the shaft of right side members passes On moving part, bottom connecting tube be respectively fixedly connected with left-hand side part, right side members footing on.

5. the mechanical extending device of Disassembling sofa according to claim 1 or 2, which is characterized in that the safe anti-pinch Arm device include five bar of foot, six bar of foot, strengthen torsional spring one and strengthen torsional spring two, above-mentioned toe board by the 31st shaft with Six bar of foot is rotatablely connected, and the reinforcement torsional spring one is set in the 31st shaft and passes through the first torsional spring mounting hole, second Torsional spring mounting hole is flexibly connected, and six bar of foot is rotatablely connected by the 30th shaft and five bar of foot, and the reinforcement torsional spring two is arranged In the 30th shaft and pass through the 3rd torsional spring mounting hole, the flexible connection of the 4th torsional spring mounting hole, five bar of foot passes through the 26th Shaft is rotatablely connected with the rotation connection of one bar of foot, by the 27th shaft and two bar of foot, and the toe board is equipped with the 6th Limiting bush, six bar of foot are equipped with the 9th confined planes that can coordinate with the 6th limiting bush, and six bar of foot is equipped with the 7th /V Bushing, five bar of foot are equipped with the 8th confined planes that can coordinate with the 7th limiting bush.