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CN208597936U - Mechanical extending device and seat unit - Google Patents

Mechanical extending device and seat unit Download PDF

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Publication number
CN208597936U
CN208597936U CN201820096785.0U CN201820096785U CN208597936U CN 208597936 U CN208597936 U CN 208597936U CN 201820096785 U CN201820096785 U CN 201820096785U CN 208597936 U CN208597936 U CN 208597936U
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CN
China
Prior art keywords
leg
connector
placing plate
connecting rod
support
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.)
Expired - Fee Related
Application number
CN201820096785.0U
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Chinese (zh)
Inventor
李文才
施振杰
黄忠良
李立波
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Anji Forever Furniture Co Ltd
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Anji Forever Furniture Co Ltd
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 Anji Forever Furniture Co Ltd filed Critical Anji Forever Furniture Co Ltd
Application granted granted Critical
Publication of CN208597936U publication Critical patent/CN208597936U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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  • Chair Legs, Seat Parts, And Backrests (AREA)

Abstract

The utility model discloses a kind of mechanical extending device and seat units, including pedestal and the extension assembly being set on the base and driving assembly, extension assembly includes leg-placing plate component, cushions support component, backrest module and leg-placing plate controls connecting rod, cushions support component includes support connector A, leg-placing plate controls connecting rod includes first connecting rod, second connecting rod, second connecting rod one end is fixedly linked with a driving tube, driving tube left and right ends are threaded through on support connector A, first connecting rod both ends respectively with the second connecting rod other end, leg-placing plate member hinges, only at left and right sides of the pedestal in wherein side set driving spring, one end of driving spring is connected with the support front end connector A, the other end of driving spring is connected with first connecting rod rear portion;The other side at least at left and right sides of the pedestal is equipped with secondary spring, and the setting of secondary spring position is different from driving spring;The active force of the utility model triggering driving spring need to only overcome a driving spring in the component of vertical direction.

Description

Mechanical extending device and seat unit
Technical field
The utility model relates generally to the movement decoration man in the position of substantially sitting bearing user's body Tool, movement decoration furniture include chaise longue, arm-chair, sofa, lovers' seat, composite furniture, cinema seat, conventional chair and tool There is the chair of removable portions, these furniture are generally termed as " seat unit " herein;More specifically, the utility model especially relates to And a kind of mechanical extending device, in addition, the utility model further relates to the seat unit using such mechanical extending device.
Background technique
Existing on current market allows user to stretch footstool or stool couch forward relative to portions and backrest of swinging back backward Layback seat unit.These existing seat units usually provide three kinds of home positions: the curling position of the non-layback of standard;It stretches It sets exhibition position;And backward position.In curling position, portions be in generally horizontal orientation and backrest be arranged to it is substantially upright. In addition, mechanical device folds so that stool couch does not stretch if seat unit includes the stool couch for being attached with mechanical device.Usual The referred to as extended position of the position TV (" TV "), stool couch are stretched to the front of portions, and backrest, cushion turn round 4 degree at the same time Left and right angle, with guarantee seat unit occupant comfort watch TV;In backward position, backrest is fixed backward from extended position It rests or sleeps at obtuse angle relationship at portions in position.
The seat unit of the various modern in industry such as chaise longue or sofa is suitable for providing above-mentioned adjustment function at present;Mesh It is preceding it is commonplace be that seat unit opening is controlled using spanner;But in order to expand the use scope of seat unit, improve seat The usage comfort of chair unit, currently, many seat units provide power adjustment herein in connection with motor, by backrest, cushion and leg rest Plate is driven by motor to drive backrest, cushion and leg-placing plate expansion or collapse, to meet requirement.
Although many conventional chaise longues can be operated satisfactorily, furnitur manufacturers still constantly pursue to develop and improve Chair frame and functional frame, so as to reduce system complexity, improve operation stationarity and occupant operating experience With comfort.Such as a kind of mechanical extending device shown in FIG. 1;The mechanical extending device include be located at the left and right sides of pedestal 1 and Leg-placing plate component 2, cushions support component 3 and the backrest module 4 that left and right is arranged in pairs, the cushions support component 3 include In addition to this support connector A5 substantially parallel with pedestal 1 further includes medianly zygomorphic leg-placing plate control assembly, described Leg-placing plate control assembly include first connecting rod 6, second connecting rod 7 and the driving spring 8 (being indicated with straight line) being obliquely installed, 7 one end of second connecting rod is fixedly linked with a driving tube 9, and 9 left and right ends of driving tube are threaded through two support connector A5 On, 6 one end of first connecting rod and 7 other end of second connecting rod are hinged, and rear is in 6 other end of first connecting rod and leg-placing plate component 2 A leg-placing plate connector 10 it is hinged, one end of driving spring 8 is hung on the support front end connector A5, driving spring 8 it is another End is hung on 6 rearward position of first connecting rod;At curling position, driving spring 8 is in tensional state, first connecting rod 6 and Two connecting rods 7 are in substantially 5 degree angles, at this point, driving spring 8 is in the state that pulls up 7 rear of second connecting rod, and driving spring 8 The hinge joint of both first, second connecting rods 6,7 is made to be higher than what second connecting rod 7 was connect with driving tube 9 in the component of vertical direction Position;And when needing to open, need to overcome driving spring 8 in the component of vertical direction and by both first, second connecting rods 6,7 Hinge joint 11 push, so that its position is lower than the position that connect with driving tube 9 of second connecting rod 7, that is, cross facing for expansion and gathering Boundary's point, the elastic force in the horizontal direction of driving spring 8 plays a role at this time, drives 2 rapid deployment of leg-placing plate component, and make first, Second connecting rod 6,7 is linked as a line.
There are many modes for driving the hinge joint of both first, second connecting rods to push, and relatively common is at this position The rotating member (not shown) of one with support connector A rotation connection is set, rotating member with reset spring and to push first, The pressing plate of both second connecting rods hinge joint 11, and rotating member connecting stay wire 12 and line traffic control spanner;When specific operation, spanner is pulled 13, bracing wire pulls rotating member rotation, and the active force of triggering driving spring is formed down with dynamic pressure plate, even if pressing plate pushing first, Leg-placing plate component is unfolded to cross critical point in both second connecting rods hinge joint;Because driving spring be the left and right sides at To setting, it is therefore desirable to overcome the component of two driving springs in the vertical direction, the power of spanner operation is larger, typically larger than 12 pounds, inconvenience is brought to operation, affects user experience.
Utility model content
The utility model overcomes the deficiency in the presence of the above-mentioned prior art, and triggering driving bullet can be reduced by providing one kind The mechanical extending device and seat unit of spring active force, the mechanical extending device are driven by being only arranged in side in the left and right sides Spring, and secondary spring is set in the other side, secondary spring position is different from driving spring, so that triggering driving spring Effect force only needs the component for overcoming unilateral driving spring in vertical direction, and being thus compared to reduced triggering in the past The size of active force improves the usage comfort and user experience of product.
The technical solution of the utility model is achieved in that
A kind of mechanical extending device, including pedestal and the extension assembly being set on the base and driving assembly, stretching, extension group Part include again the leg-placing plate component that at left and right sides of the pedestal and left and right is arranged in pairs, cushions support component, backrest module and Leg-placing plate controls connecting rod, the cushions support component include the support connector A substantially parallel with pedestal, and leg-placing plate control connects Bar includes first connecting rod, second connecting rod, and second connecting rod one end is fixedly linked with a driving tube, and the driving tube left and right ends are worn It is located on support connector A, first connecting rod one end and the second connecting rod other end are hinged, the first connecting rod other end and leg-placing plate component Hingedly, it is characterized in that: only at left and right sides of the pedestal in wherein side be equipped with driving spring, one end of driving spring and support connect The front end fitting A is connected, and the other end of driving spring is connected with first connecting rod rear portion;The other side at least at left and right sides of the pedestal Equipped with for the side leg-placing plate component provide open auxiliary force so that pedestal at left and right sides of keep synchronous expansion secondary spring, The setting of secondary spring position and driving spring are entirely different.
The utility model only at left and right sides of the pedestal in unilateral setting driving spring, and auxiliary bullet is set in the other side Spring, secondary spring assist the leg-placing plate component of the other side and the leg-placing plate component of setting this side of driving spring to keep the same of expansion Step property and time sequence, trigger in this way driving spring active force need to only overcome a driving spring vertical direction component i.e. Can, the power of half can be reduced as compared with the past, and since the leg-placing plate component for having the presence of secondary spring to make the left and right sides is beaten It opens and is not affected, kill two birds with one stone.
Preferably, secondary spring is in tensional state when leg-placing plate component collapses;And it is unfolded in leg-placing plate component When, secondary spring restores to the original state.Secondary spring uses tension spring, saves elastic force when collapsing, and when opening, elastic force plays a role.
Preferably, only at left and right sides of the pedestal in the other side of setting this side of driving spring is provided with auxiliary bullet Spring.Cost can be saved to a certain extent in this way.
In order to make two sides keep symmetrical, preferably, being equipped with secondary spring at left and right sides of pedestal, and secondary spring is It is symmetrical set.
Preferably, cushions support component includes being divided into pedestal front and back and spaced and parallel support connector B, support Connector C, support connector B, the support lower end connector C are hinged with pedestal respectively;The cushions support component further includes putting Leg plate drive link and the intermediate mistake for playing the role of accepting linkage to leg-placing plate component, cushions support component, backrest module three Connecting rod, one end connection support connector B of secondary spring are crossed, the other end of secondary spring connects middle transition connecting rod.In leg rest When board group part collapses, support connector B, support connector C back rotation, middle transition connecting rod translate backward, and middle transition connects The mobile range of bar and displacement are greater than support connector B displacement in the horizontal direction, so that secondary spring is stretched, generate bullet Power, when the driving spring when side is triggered, the elastic force of secondary spring plays a role, and opens the side leg-placing plate component synchronization.
Preferably, the middle transition connecting rod includes the first, second, third transition connecting rod being arranged from front to back, The rear and front end of First Transition connecting rod is hinged with the support upper end connector B, the middle part support connector A respectively, third transition connecting rod V-shaped, third transition connecting rod includes front end, upper end and the connecting pin of lower end three, third transition small end and support connector C Upper end is hinged, and the bottom plate that extends downwardly is fixedly linked on third transition connecting rod lower end and support connector A, the second transition connecting rod Rear and front end is hinged with the middle part of First Transition connecting rod, third transition connecting rod front end respectively;The other end connection the of secondary spring Two transition connecting rods.Second transition connecting rod is in middle position, can be by the elastic force of secondary spring in leg-placing plate component and backrest group Reasonable distribution is carried out between part, makes expansion more smooth sequential.
Preferably, the secondary spring is substantially horizontally disposed.Secondary spring is horizontally disposed, so that elastic force can To be not fully exerted in the horizontal direction, will not waste.
Preferably, the leg-placing plate drive link includes the first, second, third drive link, the first drive link One end and leg-placing plate member hinges, the first drive link be that the front is high and the back is low is obliquely installed, the middle part of the second drive link and branch Support connector A is hinged, and the other end of the first drive link and the second drive link lower end are hinged, the front and back two of third drive link End is hinged with support connector B, the second drive link upper end respectively.
Preferably, the leg-placing plate component includes leg rest grillage, leg-placing plate connector A, leg-placing plate connector B, puts Leg plate connector C and leg-placing plate connector D, leg rest grillage are in front end, one end of leg rest grillage and leg-placing plate connector A One end it is hinged, one end of the other end and leg-placing plate connector D of leg-placing plate connector A is hinged, the other end of leg rest grillage with One end of leg-placing plate connector B is hinged, and one end of the other end and leg-placing plate connector C of leg-placing plate connector B is hinged, leg-placing plate Connector A and leg-placing plate connector C intersects and, the other end of leg-placing plate connector C and support company hinged in crossover location The front end of fitting A is hinged, and the front of the other end and support connector A of leg-placing plate connector D is hinged;In this way, leg rest grillage, Leg-placing plate connector A, leg-placing plate connector B and leg-placing plate connector C form four-bar mechanism, leg-placing plate connector A, leg rest Plate connector C, leg-placing plate connector D and the front composition four-bar mechanism for supporting connector A;The first connecting rod other end with put Leg plate connector D is hinged, and one end of the first drive link is also hinged with leg-placing plate connector D.
Preferably, backrest module includes backrest connector A, backrest connector B, backrest connector A with former and later two Hinged end, the preceding hinged end of backrest connector A and supports the rear end of connector A hinged, the rear hinged end of backrest connector A with lean on The upper end for carrying on the back connector B is hinged, the lower end of backrest connector B with support the bottom plate extended downwardly on connector A hinged.
As another situation, preferably, the front end of one end connection support connector A of secondary spring, secondary spring The other end connect leg-placing plate drive link.Secondary spring directly acts on leg-placing plate drive link, it is possible to reduce secondary spring Length reduces weight and cost.
On the basis of above-mentioned connection, it is obliquely installed preferably, secondary spring is that the front is high and the back is low.
Preferably, the leg-placing plate drive link includes the first, second, third drive link, the first drive link One end and leg-placing plate member hinges, the first drive link be that the front is high and the back is low is obliquely installed, the middle part of the second drive link and branch Support connector A is hinged, and the other end of the first drive link and the second drive link lower end are hinged, the front and back two of third drive link End is hinged with support connector B, the second drive link upper end respectively;The other end of secondary spring connects the first drive link.
Alternatively form, preferably, cushions support component includes being divided into pedestal front and back and spaced and parallel Support connector B, support connector C, support connector B, support the lower end connector C it is hinged with pedestal respectively;The seat Advance expenditure support component further includes leg-placing plate drive link and leg-placing plate component, cushions support component, backrest module three is played and held The middle transition connecting rod of linkage effect is connect, one end of secondary spring connects pedestal, and the other end of secondary spring connects middle transition Connecting rod.
Preferably, secondary spring is low early and high after is obliquely installed in leg-placing plate component rounding state.
Preferably, the middle transition connecting rod includes the first, second, third transition connecting rod being arranged from front to back, The rear and front end of First Transition connecting rod is hinged with the support upper end connector B, the middle part support connector A respectively, third transition connecting rod V-shaped, third transition connecting rod includes front end, upper end and the connecting pin of lower end three, third transition small end and support connector C Upper end is hinged, and the bottom plate that extends downwardly is fixedly linked on third transition connecting rod lower end and support connector A, the second transition connecting rod Rear and front end is hinged with the middle part of First Transition connecting rod, third transition connecting rod front end respectively;The other end connection the of secondary spring Two transition connecting rods.Second transition connecting rod is in middle position, can be by the elastic force of secondary spring in leg-placing plate component and backrest group Reasonable distribution is carried out between part, makes expansion more smooth sequential.
Preferably, the driving assembly is line traffic control switch, the described line traffic control switch include bracing wire, casing, spanner with And the rotating member with support connector A rotation connection, rotating member is with reset spring and to push both first, second connecting rods One end of the pressing plate of hinge joint, casing is fixedly connected with support connector A, and bracing wire is threaded through in casing and the both ends of bracing wire point It Lian Jie not rotating member and spanner;Spanner is pulled, bracing wire pulls rotating member rotation, is formed down triggering driving spring with dynamic pressure plate Active force.Using manual form, the power of a driving spring need to be only overcome, 12 pounds of original active forces, which are reduced to, only needs 6 pounds Left and right, operation is more convenient, and user experience is good.
Preferably, the driving assembly is directly to push away motor or flat-pushing motor, directly pushes away motor or flat-pushing motor acts on On driving tube.Using the structure of the utility model, it is possible to reduce the active force of motor improves making for electric motor to a certain extent With service life and access times, also properties of product are effectively promoted.
In order to further ensure the motion synchronicity of each side component, preferably, symmetrical support connects It is fixedly linked between part B by first crossbar, is fixedly linked between symmetrical support connector C by second crossbar.
A kind of seat unit, including mechanical extending device as described above, in two leg rest board groups that left and right is oppositely arranged Leg-placing plate is housed on part, cushion is housed on two cushions support components that the left and right is oppositely arranged, left and right is oppositely arranged Two backrest modules upper end be equipped with backrest.
It is using the design starting point, theory and beneficial effect of the utility model of above-mentioned technical proposal:
The utility model provides a kind of mechanical extending device, and side of the mechanical extending device only in the left and right sides is set Driving spring to be set, and secondary spring is set in the other side, secondary spring unilateral can both be arranged, can also be symmetrical set, But secondary spring position is different from driving spring, so that the effect force of triggering driving spring only needs to overcome unilateral drive Spring move in the component of vertical direction, is thus compared to the size for reducing trigger action power in the past, improves product Usage comfort.
On the basis of the utility model is above-mentioned improved, if using manual switch come when triggering, it is possible to reduce user Power, active force is less than the similar device that occurs on the market;Which improves the uses of the use comfort and product of product Safety in the process;And when using motor to drive, when by motor driven driving tube, utilize secondary spring, it is possible to reduce The active force of electric motor improves access times and the service life of electric motor in this way, is also effectively mentioned to product function It rises.
Further, by changing the activation point of secondary spring, it is being closed the utility model mechanical extending device It collapses, when being unfolded and lift three condition, makes device is orderly to complete according to stretching, extension mechanical step, reach leg rest assembly The purpose steadily stretched improves the stability of product.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of mechanical extending device in the prior art;
Fig. 2 be embodiment 1 in mechanical extending device be in rounding state when schematic diagram;
Fig. 3 be embodiment 1 in mechanical extending device be in unfolded state when schematic diagram;
Fig. 4 is schematic diagram when mechanical extending device is using motor driven in embodiment 1;
Schematic perspective view when Fig. 5 is mechanical extending device rounding state in embodiment 2;
Fig. 6 is schematic perspective view when 3 mechanical extending device of embodiment is in rounding state.
Specific embodiment
Specific embodiment of the present utility model is as follows:
The reference azimuth of the utility model main component is defined first, the direction that the stretching, extension of leg-placing plate component is opened is front, Region locating for backrest module is rear.And the support front connector A is equipped with an inclined extension obliquely,
Embodiment 1: the utility model provides firstly a kind of mechanical extending device, as shown in figs. 2 to 4, including pedestal 1 with And the extension assembly on pedestal 1 and driving assembly 2 are set, pedestal 1 is two spaced and parallel support rods, and extension assembly is wrapped again Include be located at left and right sides of pedestal and the leg-placing plate component 3, cushions support component 4 and the backrest module 5 that are arranged in pairs of left and right and Leg-placing plate controls connecting rod, the cushions support component 4 include the support connector A6 substantially parallel with pedestal 1, and support rod connects Fitting A6 not necessarily regular rectangle, as long as it, which is arranged, keeps substantially parallel with pedestal 1 above pedestal 1.
Leg-placing plate controls connecting rod includes first connecting rod 7, second connecting rod 8,8 one end of second connecting rod and 9 stationary phase of a driving tube Even, 9 left and right ends of driving tube are threaded through on support connector A6, and 7 one end of first connecting rod and 8 other end of second connecting rod are cut with scissors It connects, 7 other end of first connecting rod and leg-placing plate component 3 are hinged;The utility model of the utility model will be intended to: only left in pedestal 1 Wherein side in right two sides is equipped with driving spring 10, and driving spring 10 uses tension spring, and one end of driving spring 10 and support connect The front end fitting A6 is connected, and the other end of driving spring 10 is connected with 7 rear portion of first connecting rod;Except driving bullet at left and right sides of the pedestal The other side outside this side of spring, which is equipped with, opens auxiliary force so as to keep at left and right sides of pedestal same for providing to the side leg-placing plate component 3 The secondary spring 11 of expansion is walked, the setting of 11 position of secondary spring and driving spring 10 are entirely different.It is collapsed in leg-placing plate component When, secondary spring 11 is in tensional state;And in the expansion of leg-placing plate component, secondary spring restores to the original state.
In the present embodiment, cushions support component 4 includes being divided into 1 front and back of pedestal and spaced and parallel support connector B12, support connector C13, support connector B12, the support lower end connector C13 are hinged with pedestal 1 respectively;The cushion branch Support component 4 further includes leg-placing plate drive link and plays undertaking connection to leg-placing plate component, cushions support component, backrest module three The middle transition connecting rod of movement, one end connection support connector B12 of secondary spring 11, the other end connection of secondary spring 11 Middle transition connecting rod;Secondary spring 11 also uses tension spring.It is solid by first crossbar 51 between symmetrical support connector B12 It is fixed to be connected, it is fixedly linked between symmetrical support connector C13 by second crossbar 52.
It further says, as shown in figure 3, the middle transition connecting rod includes first, second be arranged from front to back, Three transition connecting rods 14,15,16, the rear and front end of First Transition connecting rod 14 respectively with support the upper end connector B12, support connector Hinged in the middle part of A6, third transition connecting rod 16 is V-shaped, and third transition connecting rod 16 includes front end, upper end and the connecting pin of lower end three, the Three transition connecting rods, 16 upper end and support the upper end connector C13 it is hinged, 16 lower end of third transition connecting rod and support connector A6 on to The bottom plate 61 of lower extension is fixedly linked, the rear and front end of the second transition connecting rod 15 respectively with the middle part of First Transition connecting rod 14, Three transition connecting rods, 16 front end is hinged;The other end of secondary spring 11 connects the second transition connecting rod 15;And the secondary spring 11 It is substantially horizontally disposed.
The leg-placing plate drive link includes the first, second, third drive link 17,18,19, the first drive link 17 One end and leg-placing plate member hinges, the first drive link 17 be that the front is high and the back is low is obliquely installed, the middle part of the second drive link 18 Hinged with support connector A6, the other end of the first drive link 17 and 18 lower end of the second drive link are hinged, and third driving connects The rear and front end of bar 19 is hinged with support connector B12,18 upper end of the second drive link respectively.
It further says, the leg-placing plate component 3 is Conventional mechanisms, it includes leg rest grillage 21, leg-placing plate connector A22, leg-placing plate connector B23, leg-placing plate connector C24 and leg-placing plate connector D25, leg rest grillage 21 are in front end, One end of leg rest grillage 21 and one end of leg-placing plate connector A22 are hinged, and the other end and leg-placing plate of leg-placing plate connector A22 connects One end of fitting D25 is hinged, and one end of the other end and leg-placing plate connector B23 of leg rest grillage 21 is hinged, leg-placing plate connector The other end of B23 and one end of leg-placing plate connector C24 are hinged, and leg-placing plate connector A22 and leg-placing plate connector C24 are mutually handed over It pitches and hinged in crossover location, the front end of the other end and support connector A6 of leg-placing plate connector C24 is hinged, and leg-placing plate connects The other end of fitting D25 and the front of support connector A6 are hinged;In this way, leg rest grillage 21, leg-placing plate connector A22, leg rest Plate connector B23 and leg-placing plate connector C24 form four-bar mechanism, leg-placing plate connector A22, leg-placing plate connector C24, Leg-placing plate connector D25 and the composition four-bar mechanism of extension 10 for supporting connector A6;7 other end of first connecting rod and leg rest Plate connector D25 is hinged, and one end of the first drive link 17 is also hinged with leg-placing plate connector D25.
Backrest module is also general components, it includes backrest connector A31, backrest connector B32, backrest connector A31 With former and later two hinged ends, the preceding hinged end of backrest connector A31 and the rear end of support connector A6 are hinged, backrest connector The rear hinged end of A31 and the upper end of backrest connector B32 are hinged, on the lower end of backrest connector B32 and support connector A6 to The bottom plate 61 of lower extension is hinged.
In the present embodiment, the driving assembly 2 is conventional line traffic control switch, and the line traffic control switch includes bracing wire, set Pipe, spanner and the rotating member with support connector A rotation connection, rotating member with reset spring and to push first, the One end of the pressing plate of both two connecting rods hinge joint, casing is fixedly connected with support connector A, and bracing wire is threaded through in casing and draws The both ends of line are separately connected rotating member and spanner;Spanner is pulled, bracing wire pulls rotating member rotation, and band dynamic pressure plate is formed down triggering The active force of driving spring.
It further says, as shown in figure 4, the driving assembly can also use motor, the driving assembly is flat Motor 41 is pushed away, flat-pushing motor 41 acts on driving tube 9.
The present embodiment further provides a kind of seat unit, including mechanical extending device as described above again, in left and right Leg-placing plate is housed, on two cushions support components that the left and right is oppositely arranged on two leg-placing plate components being oppositely arranged Equipped with cushion, the upper end for two backrest modules being oppositely arranged is controlled equipped with backrest.
Embodiment 2: the present embodiment difference from example 1 is that: as shown in figure 5, one end of secondary spring 11 connects The front end of support connector A6 is connect, the other end of secondary spring 11 connects leg-placing plate drive link, specifically, secondary spring 11 The other end connect the first drive link 17;In leg-placing plate component rounding state and opening state, before secondary spring 11 is Low dip is arranged after height.Note: the secondary spring 11 of the present embodiment is indicated with straight line.
Embodiment 3: the present embodiment difference from example 1 is that: as shown in fig. 6, one end of secondary spring 11 connects Pedestal 1 is connect, secondary spring 11 is also indicated with straight line, and the other end of secondary spring 11 connects middle transition connecting rod, specifically It says, the other end of secondary spring 11 connects the second transition connecting rod 15;In leg-placing plate component rounding state, before secondary spring 11 is High dip setting after low.The secondary spring set-up mode of the present embodiment is only applicable to motor driven;The motor is directly to push away electricity Machine or flat-pushing motor.

Claims (20)

1. a kind of mechanical extending device, including pedestal and the extension assembly being set on the base and driving assembly, extension assembly It again include being located at the leg-placing plate component that at left and right sides of pedestal and left and right is arranged in pairs, cushions support component, backrest module and putting Leg plate controls connecting rod, the cushions support component include the support connector A substantially parallel with pedestal, leg-placing plate controls connecting rod Including first connecting rod, second connecting rod, second connecting rod one end is fixedly linked with a driving tube, and the driving tube left and right ends are worn On support connector A, first connecting rod one end and the second connecting rod other end are hinged, and the first connecting rod other end and leg-placing plate component are cut with scissors Connect, it is characterized in that: only at left and right sides of the pedestal in wherein side be equipped with driving spring, one end of driving spring and support connect The front end part A is connected, and the other end of driving spring is connected with first connecting rod rear portion;The other side at least at left and right sides of the pedestal is set Have for providing the secondary spring for opening auxiliary force so that the pedestal left and right sides keeps synchronous expansion to the side leg-placing plate component, it is auxiliary Help the setting of spring position and driving spring entirely different.
2. a kind of mechanical extending device according to claim 1, it is characterised in that: when leg-placing plate component collapses, auxiliary Spring is in tensional state;And in the expansion of leg-placing plate component, secondary spring restores to the original state.
3. a kind of mechanical extending device according to claim 1, it is characterised in that: only at left and right sides of the pedestal in except setting The other side for setting this side of driving spring is provided with secondary spring.
4. a kind of mechanical extending device according to claim 1, it is characterised in that: be equipped with auxiliary at left and right sides of pedestal Spring, and secondary spring is to be symmetrical set.
5. a kind of mechanical extending device according to claim 1, it is characterised in that: cushions support component includes being divided into bottom Seat front and back and spaced and parallel support connector B, support connector C, support connector B, the support lower end connector C respectively with Pedestal is hinged;The cushions support component further include leg-placing plate drive link and to leg-placing plate component, cushions support component, lean on Back component three plays the role of accepting the middle transition connecting rod of linkage, and one end connection support connector B of secondary spring assists bullet The other end of spring connects middle transition connecting rod.
6. a kind of mechanical extending device according to claim 5, it is characterised in that: the middle transition connecting rod include by First, second, third transition connecting rod of front to back setting, the rear and front end of First Transition connecting rod is respectively and on support connector B Hinged in the middle part of end, support connector A, third transition connecting rod is V-shaped, and third transition connecting rod includes front end, upper end and lower end three Connecting pin, third transition small end and the support upper end connector C are hinged, on third transition connecting rod lower end and support connector A The bottom plate extended downwardly is fixedly linked, the rear and front end of the second transition connecting rod respectively with the middle part of First Transition connecting rod, third mistake It is hinged to cross connecting rod front end;The other end of secondary spring connects the second transition connecting rod.
7. a kind of mechanical extending device according to claim 5 or 6, it is characterised in that: the secondary spring is substantially It is horizontally disposed.
8. a kind of mechanical extending device according to claim 5, it is characterised in that: the leg-placing plate drive link includes First, second, third drive link, one end of the first drive link and leg-placing plate member hinges, the first drive link are preceding height Low dip is arranged afterwards, and the middle part of the second drive link and support connector A are hinged, and the other end of the first drive link and second drives Dynamic connecting rod lower end is hinged, and the rear and front end of third drive link is hinged with support connector B, the second drive link upper end respectively.
9. a kind of mechanical extending device according to claim 8, it is characterised in that: the leg-placing plate component includes leg rest Grillage, leg-placing plate connector A, leg-placing plate connector B, leg-placing plate connector C and leg-placing plate connector D, leg rest grillage are in Front end, one end of leg rest grillage and one end of leg-placing plate connector A are hinged, the other end and leg-placing plate of leg-placing plate connector A One end of connector D is hinged, and one end of the other end and leg-placing plate connector B of leg rest grillage is hinged, and leg-placing plate connector B's is another One end and one end of leg-placing plate connector C are hinged, and leg-placing plate connector A and leg-placing plate connector C intersect and intersecting position Set hinged, the other end of leg-placing plate connector C and the front end of support connector A are hinged, the other end of leg-placing plate connector D and Support the front of connector A hinged;In this way, leg rest grillage, leg-placing plate connector A, leg-placing plate connector B and leg-placing plate connection Part C forms four-bar mechanism, leg-placing plate connector A, leg-placing plate connector C, leg-placing plate connector D and support connector A Front forms four-bar mechanism;The first connecting rod other end and leg-placing plate connector D are hinged, one end of the first drive link also with put Leg plate connector D is hinged.
10. a kind of mechanical extending device according to claim 8, it is characterised in that: backrest module includes backrest connector A, backrest connector B, backrest connector A have former and later two hinged ends, the preceding hinged end of backrest connector A and support connector The rear end of A is hinged, and the rear hinged end of backrest connector A and the upper end of backrest connector B are hinged, the lower end of backrest connector B with The bottom plate extended downwardly on support connector A is hinged.
11. a kind of mechanical extending device according to claim 5, it is characterised in that: one end of secondary spring connects support The other end of the front end of connector A, secondary spring connects leg-placing plate drive link.
12. a kind of mechanical extending device according to claim 11, it is characterised in that: secondary spring, which is that the front is high and the back is low, to be tilted Setting.
13. a kind of mechanical extending device according to claim 11, it is characterised in that: the leg-placing plate drive link packet The first, second, third drive link, one end of the first drive link and leg-placing plate member hinges are included, before the first drive link is Low dip is arranged after height, and the middle part of the second drive link and support connector A are hinged, the other end of the first drive link and second Drive link lower end is hinged, and the rear and front end of third drive link is cut with scissors with support connector B, the second drive link upper end respectively It connects;The other end of secondary spring connects the first drive link.
14. a kind of mechanical extending device according to claim 1, it is characterised in that: cushions support component includes being divided into Pedestal front and back and spaced and parallel support connector B, support connector C, support connector B, the support lower end connector C difference It is hinged with pedestal;The cushions support component further include leg-placing plate drive link and to leg-placing plate component, cushions support component, Backrest module three plays the role of accepting the middle transition connecting rod of linkage, and one end of secondary spring connects pedestal, secondary spring The other end connects middle transition connecting rod.
15. a kind of mechanical extending device according to claim 14, it is characterised in that: in leg-placing plate component rounding state When, secondary spring is low early and high after is obliquely installed.
16. a kind of mechanical extending device according to claim 14, it is characterised in that: the middle transition connecting rod includes The first, second, third transition connecting rod being arranged from front to back, the rear and front end of First Transition connecting rod respectively with support connector B Hinged in the middle part of upper end, support connector A, third transition connecting rod is V-shaped, and third transition connecting rod includes front end, upper end and lower end three A connecting pin, third transition small end and the support upper end connector C are hinged, third transition connecting rod lower end and support connector A On the bottom plate that extends downwardly be fixedly linked, the rear and front end of the second transition connecting rod respectively with the middle part of First Transition connecting rod, third Transition connecting rod front end is hinged;The other end of secondary spring connects the second transition connecting rod.
17. a kind of mechanical extending device according to claim 1, it is characterised in that: the driving assembly is opened for line traffic control It closes, the line traffic control switch includes bracing wire, casing, spanner and the rotating member with support connector A rotation connection, rotating member band There are reset spring and the pressing plate to push both the first, second connecting rods hinge joint, one end and the support connector A of casing are fixed Connection, bracing wire is threaded through in casing and the both ends of bracing wire are separately connected rotating member and spanner;Spanner is pulled, bracing wire pulls rotation Part rotation, the active force of triggering driving spring is formed down with dynamic pressure plate.
18. a kind of mechanical extending device according to claim 1 or 5, it is characterised in that: the driving assembly is directly to push away Motor or flat-pushing motor, directly push away motor or flat-pushing motor acts on driving tube.
19. a kind of mechanical extending device according to claim 5 or 14, it is characterised in that: symmetrical support connection It is fixedly linked between part B by first crossbar, is fixedly linked between symmetrical support connector C by second crossbar.
20. a kind of seat unit, it is characterized in that: including such as described in any item mechanical extending devices of claim 1~19, on a left side Leg-placing plate is housed, in two cushions support components that the left and right is oppositely arranged on two leg-placing plate components that the right side is oppositely arranged Upper that cushion is housed, the upper end for two backrest modules that left and right is oppositely arranged is equipped with backrest.
CN201820096785.0U 2017-09-05 2018-01-19 Mechanical extending device and seat unit Expired - Fee Related CN208597936U (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201721129756 2017-09-05
CN2017211297561 2017-09-05

Publications (1)

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CN208597936U true CN208597936U (en) 2019-03-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201820096785.0U Expired - Fee Related CN208597936U (en) 2017-09-05 2018-01-19 Mechanical extending device and seat unit

Country Status (1)

Country Link
CN (1) CN208597936U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108158260A (en) * 2017-09-05 2018-06-15 安吉永艺尚品家具有限公司 A kind of mechanical extending device and seat unit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108158260A (en) * 2017-09-05 2018-06-15 安吉永艺尚品家具有限公司 A kind of mechanical extending device and seat unit
CN108158260B (en) * 2017-09-05 2024-04-12 安吉永艺尚品家具有限公司 Mechanical stretching device and seat unit

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