CN104172793B - Multifunctional lifting frame - Google Patents

Multifunctional lifting frame Download PDF

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Publication number
CN104172793B
CN104172793B CN201410401538.3A CN201410401538A CN104172793B CN 104172793 B CN104172793 B CN 104172793B CN 201410401538 A CN201410401538 A CN 201410401538A CN 104172793 B CN104172793 B CN 104172793B
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CN
China
Prior art keywords
fixture
rod
tumbler
pivot axis
articulated
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CN201410401538.3A
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Chinese (zh)
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CN104172793A (en
Inventor
卢伟
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Dongguan Weihong Smart Home Technology Co Ltd
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Dongguan Weihong Hardware and Plastic Products Co Ltd
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Priority to CN201410401538.3A priority Critical patent/CN104172793B/en
Publication of CN104172793A publication Critical patent/CN104172793A/en
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Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C7/00Parts, details, or accessories of chairs or stools
    • A47C7/36Support for the head or the back
    • A47C7/38Support for the head or the back for the head

Abstract

Disclosure one multifunctional lifting frame, including the first fixture, the second fixture, tumbler, head rod, the second connecting rod, the 3rd connecting rod and card seaming element;One end of tumbler is articulated in the first fixture and is provided with multiple engaging tooth, card seaming element is arranged at the first fixture and is selectively sticked in multiple engaging tooth so that relative first fixture of tumbler pivots or fixing, one end of head rod is articulated in the first fixture, the other end of head rod and one end pivot joint of the second connecting rod, the other end of the second connecting rod is articulated in the second fixture, 3rd connecting rod is articulated in the other end of tumbler and the 3rd connecting rod is articulated in the second fixture, second connecting rod and the 3rd connecting rod pivot joint, all above pivot axis is arranged in parallel.This multifunctional lifting frame can adjust the angle of headrest, and its in sofa to arrange position unrestricted, therefore sofa outward appearance can also be kept good while ensureing customer comfort.

Description

Multifunctional lifting frame
Technical field
The present invention relates to a kind of sofa accessory, particularly relate to a kind of multifunctional lifting frame that can adjust sofa headrest angle.
Background technology
Generally, in order to enable a consumer to have more comfortable impression, the headrest of sofa can adopt the design of adjustable angle, the most direct mode realizing this design is exactly arrange the hinge of a connection headrest in sofa, headrest is followed the rotation of hinge and is changed the angle between sofa body, this design makes the angle of inclination that consumer can rest the head on according to self service condition adjustment, thus obtaining the comfortable effect of the best.
But, above-mentioned design but brings another problem while adjusting headrest angle, namely rest the head in stirring process, leather outside sofa or the degree of tightness state of leather sheath: if to be calculated as when resting the head on upright be tensioning state by sheathed to leather or cloth, so rest the head on after turn over time, leather or cloth will necessarily be overlapped and produce a pulling force, cause that leather or cloth set are tightened and even broken, damage sofa;On the contrary, if by sheathed to leather or cloth be calculated as and turn over after headrest time be tensioning state, then headrest stir upright after, leather or cloth set will become undue lax, wrinkling, affect the outward appearance of sofa.
Additionally, hinge arranges, between headrest and sofa body, the restriction that position can be subject to the structure of hinge and sofa, when relying on hinge to rotate headrest, the jointed shaft of hinge centres is exactly the pivotal axis of headrest, therefore the position needs of hinge are configured to the front surface close proximity to sofa body Yu headrest, if and hinge is too close to the front surface of sofa body Yu headrest, consumer is possible to the hinge within sofa and supports back when taking, and produces discomfort.
Therefore, it is necessary to provide a kind of angle that can adjust headrest, it is maintained with sofa outward appearance and well and the unrestricted mechanism in position is set.
Summary of the invention
It is an object of the invention to provide a kind of angle that can adjust headrest, be maintained with sofa outward appearance and well and the unrestricted mechanism in position is set.
To achieve these goals, the invention provides a kind of multifunctional lifting frame, including the first fixture, the second fixture, tumbler, head rod, the second connecting rod, the 3rd connecting rod and card seaming element;nullOne end of described tumbler is articulated in described first fixture and is provided with multiple engaging tooth,Described card seaming element is arranged at described first fixture and is selectively sticked in multiple described engaging tooth so that relatively described first fixture of described tumbler pivots or fixing,One end of described head rod is articulated in described first fixture,One end pivot joint of the other end of described head rod and described second connecting rod,The other end of described second connecting rod is articulated in described second fixture,Described 3rd connecting rod is articulated in the other end of described tumbler and described 3rd connecting rod is articulated in described second fixture,Described second connecting rod and described 3rd connecting rod pivot joint,The pivot axis of described tumbler and the first fixture、The pivot axis of described head rod and the first fixture、The pivot axis of described head rod and the second connecting rod、The pivot axis of described second connecting rod and the second fixture、The pivot axis of described 3rd connecting rod and tumbler、Described 3rd connecting rod is arranged in parallel with the pivot axis of the second fixture and the pivot axis of described second connecting rod and the 3rd connecting rod.
Compared with prior art, owing to the present invention is provided with described card seaming element on described first fixture, with the described tumbler of described first fixture pivot joint on be provided with multiple described engaging tooth, and described second fixture is by described head rod, the pivot joint relation of the second connecting rod and the 3rd connecting rod realizes linkage with described tumbler, when described tumbler rotates relative to described first fixture, it is movable thus driving the sofa headrest being fixed on described second fixture to change angle that described second fixture can follow described tumbler, it is sticked in different described engaging tooths by described card seaming element, sofa headrest can be located in different angles.Described tumbler does not drive described second fixture to do fixed-axis rotation, but utilize described second connecting rod and the pushing tow of the 3rd connecting rod to make described second fixture do certain upset and also move up simultaneously, so that headrest moves up in the process dug from collapse state and stretches outside leather or cloth set simultaneously, it is ensured that sofa is good looking appearance before and after headrest angle adjustment.Additionally, described second fixture directly with described first fixture pivot joint, the rotation of therefore fixing with described second fixture headrest is not also with one end of described first fixture for benchmark, but promoted by several connecting rods, therefore this multifunctional lifting frame installation site in sofa is unrestricted, such that it is able to be arranged on the position in more posteriorly portion and ensure the ride comfort sense of consumer.
Preferably, the pivot axis of described head rod and described first fixture is positioned at the lower section of described tumbler and the pivot axis of described first fixture, and described head rod is in the arc being folded upward at, the pivot axis of described second connecting rod and described tumbler is between the pivot axis of described tumbler and described first fixture and the pivot axis of described tumbler and described 3rd connecting rod, described 3rd connecting rod is in the arc to described first fixture bending, the pivot axis of described second connecting rod and described second fixture is positioned at the front of described 3rd connecting rod and the pivot axis of described second fixture.Three connecting rods by respectively with the pivot joint of described first fixture, the second fixture and tumbler, it is ensured that described tumbler second fixture described in while rotating can link and realize Expected Results.
Preferably, described card seaming element includes locking plate and elastic component, described tumbler is articulated in one end of described first fixture and offers curved hole, location, one sidewall in hole, described location includes the interconnective flank of tooth and plane, the described flank of tooth forms multiple described engaging tooth, one end that described first fixture is articulated in described tumbler offers accommodating hole, described accommodating hole includes the first accommodating area and the second accommodating area that are interconnected, described locking plate is placed in described first accommodating area actively and described locking plate protrudes from the side of described first fixture and is sticked in described engaging tooth, one end of described elastic component is placed in described second accommodating area, the other end is resisted against described locking plate makes described locking plate perseverance have the trend being positioned at described first accommodating area;The sidewall of the junction of described first accommodating area and the second accommodating area caves inward and forms a solution lock-bit slipped into for one end of described locking plate.Described locking plate is locked between described first fixture and tumbler by described first accommodating area and described supporting of engaging tooth, such that it is able to realize headrest in the location of different angles.And when needs pull headrest backward, need headrest is first upwards pulled extreme position, now locking plate described in described plane pushing and withstanding, described locking plate is made to overcome the elastic force of described elastic component and one end to slip into described solution lock-bit, slip into the described locking plate after described solution lock-bit to depart from the described flank of tooth, described engaging tooth no longer is produced to support by described locking plate, and therefore described tumbler can be freely rotatable, and namely sofa headrest can back turn to collapse state.
Specifically, described tumbler offers described in two hole, location, positions the pivot axis of the relatively described tumbler in hole and described first fixture and be centrosymmetric setting described in two;Described first fixture offers accommodating hole described in two, and the pivot axis of the relatively described tumbler of accommodating hole described in two and described first fixture is centrosymmetric setting.Positioning accommodating hole described in hole and two described in two by arranging, the engaging location between described tumbler and the first fixture balances and firm more, is conducive to improving the bearing capacity of headrest and extending the service life of multifunctional lifting frame.
Specifically, one end of described locking plate contacts at one end of described first accommodating area and can slip into described solution lock-bit under the pushing tow of described plane, the other end of described locking plate has the depression that a width is identical with the thickness of described first fixture, and described depression is sticked in the other end of described first accommodating area.The effect of described depression is to occur that on the thickness direction of described first fixture unexpected slip causes that described tumbler and the first fixture are lost and engage positioning relation by being sticked in described first accommodating area to prevent described locking plate, thus avoiding the situation that headrest falls down suddenly, it is ensured that the use safety of consumer.
Specifically, described elastic component is shell fragment, and one end of described shell fragment curls into circular arc and is placed in described second accommodating area.
It is preferred that described first fixture includes installing plate and the first articulated slab, described first articulated slab is fixed on the upper end of described installing plate and arranges described card seaming element.
Preferably, described tumbler includes rotating bar and two second articulated slabs, second articulated slab described in two is relatively fixed to the both sides of one end of described rotation bar, and the second articulated slab described in two is held on the both sides of described first fixture, and described second articulated slab arranges described engaging tooth.Arrange the second articulated slab described in two and clamp described first fixture, then described tumbler is not susceptible to beat when Forced rotation, adds the stability of described multifunctional lifting frame.
Specifically, described multifunctional lifting frame also includes two enclosing covers, and enclosing cover described in two is respectively arranged at the outside of the second articulated slab described in two and hides described card seaming element and engaging tooth.
Preferably, described multifunctional lifting frame also includes a linear drive apparatus with outfan, described linear drive apparatus and the one pivot joint in described tumbler or the first fixture, the outfan of described linear drive apparatus and the another one pivot joint in described tumbler or the first fixture.By arranging described linear drive apparatus between described tumbler and described first fixture, after described linear drive apparatus starts, stretching out or retracting of its outfan can drive described first fixture and tumbler rotate with being relatively distant from or relatively closely rotate, thus realizing being fixed on the automatic adjustment of the angle of the sofa headrest of described second fixture, pull headrest without staff, make the operation automatization of angle adjustment and more convenient.
Accompanying drawing explanation
Fig. 1 is the axonometric chart of multifunctional lifting frame of the present invention.
Fig. 2 is the exploded view of multifunctional lifting frame of the present invention.
Fig. 3 is locking plate and the elastic component matching relationship schematic diagram in accommodating hole on the first fixture in multifunctional lifting frame of the present invention.
Fig. 4 is the axonometric chart of the second articulated slab.
Fig. 5 is tumbler and the first fixture fastening state schematic diagram of locking plate and engaging tooth when a certain angle.
Fig. 6 is that relative first fixture of tumbler turns to the fastening state schematic diagram of locking plate and engaging tooth during another angle.
One end that Fig. 7 is locking plate is entered to solve locking plate position view in hole, location and accommodating hole after lock-bit by pushing tow.
Fig. 8 is sofa headrest relative sofa body view of multifunctional lifting frame when folding.
Fig. 9 is that sofa headrest erects the view of rear multifunctional lifting frame relative to sofa body.
Figure 10 is two multifunctional lifting framves attachment structure schematic diagrams when being used in conjunction with.
Figure 11 is the side view of multifunctional lifting frame in second embodiment of the invention.
Attachment structure schematic diagram when Figure 12 is that in the second embodiment, two multifunctional lifting framves are used in conjunction with.
Figure 13 is the axonometric chart of multifunctional lifting frame in third embodiment of the invention.
Detailed description of the invention
Below in conjunction with the Figure of description provided, presently preferred embodiments of the present invention is made description.
As shown in Figure 1 and Figure 2, the open a kind of multifunctional lifting frame of the present embodiment, including first fixture the 1, second fixture 2, tumbler 3, head rod the 4, second connecting rod the 5, the 3rd connecting rod 6 and card seaming element;nullOne end of described tumbler 3 is articulated in described first fixture 1 and is provided with multiple engaging tooth,Described card seaming element is arranged at described first fixture 1 and is selectively sticked in multiple described engaging tooth so that relatively described first fixture 1 of described tumbler 3 pivots or fixes,One end of described head rod 4 is articulated in described first fixture 1,One end pivot joint of the other end of described head rod 4 and described second connecting rod 5,The other end of described second connecting rod 5 is articulated in described second fixture 2,Described 3rd connecting rod 6 is articulated in the other end of described tumbler 3 and described 3rd connecting rod 6 is articulated in described second fixture 2,Described second connecting rod 5 and described 3rd connecting rod 6 pivot joint,The pivot axis of tumbler 3 and the first fixture 1、The pivot axis of head rod 4 and the first fixture 1、The pivot axis of head rod 4 and the second connecting rod 5、The pivot axis of the second connecting rod 5 and the second fixture 2、The pivot axis of the 3rd connecting rod 6 and tumbler 3、The pivot axis of the 3rd connecting rod 6 and the second fixture 2 and the pivot axis of the second connecting rod 5 and the 3rd connecting rod 6 are arranged in parallel.
Specifically, described card seaming element in the present embodiment includes locking plate 7 and elastic component 8, described first fixture 1 includes installing plate 10 and the first articulated slab 11, and described tumbler 3 includes rotating bar 30 and two second articulated slabs 32, and described multifunctional lifting frame also includes two enclosing covers 9.
Described installing plate 10 lower end is set to the tabular that area is bigger, and adopts the connector such as screw, bolt to be fixed on this internal and that guarantee is fixing stability of sofa.The shrinkage in width of the upper end of described installing plate 10 is to equal with the width of described first articulated slab 11, the lower end of described first articulated slab 11 is fixed with described installing plate 10, the upper end of described first articulated slab 11 is rounded, and described first articulated slab 11 offers two accommodating holes running through described first articulated slab 11, the pivot axis of relatively described first fixture 1 of accommodating hole described in the two and described tumbler 3 is centrosymmetric setting.
In conjunction with Fig. 3 on the basis of Fig. 2, described accommodating hole includes the first accommodating area 111 and the second accommodating area 112 being interconnected.The projection on the thickness direction of described first articulated slab 11 of described first accommodating area 111 is generally rectangular, the projection on the thickness direction of described first articulated slab 11 of described second accommodating area 112 is substantially round in shape, and the join domain of described first accommodating area 111 and the second accommodating area 112 caves inward formation solution lock-bit 113 away from the sidewall of described first fixture 1 with the side of the pivot axis (i.e. the central axis of the first articulated slab 11 center hole) of tumbler 3.
nullThe shape of described locking plate 7 is corresponding to the shape of described first accommodating area 111 and is placed in actively in described first accommodating area 111,The width of described locking plate 7 is more than the thickness of described first articulated slab 11,Therefore,Described locking plate 7 its both sides after putting into described first accommodating area 111 are stretched out outside described first accommodating area 111 and convexedly stretch in the both sides of described first articulated slab 11,Described locking plate 7 has, away from one end of described solution lock-bit 113, the depression 70 that a width is identical or more bigger than the thickness of described first articulated slab 11 with the thickness of described first articulated slab 11,Described depression 70 is stuck in the edge of described first accommodating area 111,The effect of described depression 70 is to be stable in described accommodating hole by described locking plate 7,Prevent locking plate 7 from departing from from described accommodating hole in movable process and causing forfeiture between described tumbler 3 with the first fixture 1 to engage positioning relation,Thus avoiding the situation that headrest falls down suddenly,Ensure the use safety of consumer.Described locking plate 7 is not provided with one end of described depression 70 and contacts at the sidewall of described first accommodating area 111 and can to slip under external force pushing tow be solve lock-bit 113.
Described elastic component 8 is shell fragment, and one end curls into circular arc, preferably, whole described elastic component 8 is made to form figure six, and one end that described elastic component 8 is in circular arc is placed in described second accommodating area 112, the other end of described elastic component 8 stretches into described first accommodating area 111 and is resisted against described locking plate 7 and does not set one end of described depression 70 and make this one end perseverance of described locking plate 7 have the trend being positioned at described first accommodating area 111.Different from described locking plate 7, the width of described elastic component 8 is equal to or less than the thickness of described first articulated slab 11, and therefore described elastic component 8 is fully to be placed in described accommodating hole without projecting to the both sides of described first articulated slab 11.
With continued reference to Fig. 1 and Fig. 2, the second articulated slab 32 described in two is relatively fixed to the both sides of one end of described rotation bar 30, and the second articulated slab 32 described in two be held on described first articulated slab 11 both sides and with described first articulated slab 11 pivot joint.Arrange the second articulated slab 32 described in two and clamp described first fixture 1, then described tumbler 3 is not susceptible to beat when Forced rotation, adds the stability of described multifunctional lifting frame.Described second articulated slab 32 is rounded with one end of described first articulated slab 11 pivot joint, and described second articulated slab 32 offers two run through described second articulated slab 32 hole, location 320 corresponding with accommodating hole described in two respectively, position the pivot axis of relatively described first articulated slab 11 in hole 320 and described second articulated slab 32 described in the two and be centrosymmetric setting.
In conjunction with Fig. 4, the hole, described location 320 sidewall near the edge of described second articulated slab 32 includes interconnective one section of flank of tooth 321 and one section of plane 322, and the described flank of tooth 321 has multiple engaging tooth, the middle part projection slightly outwards of described plane 322;Hole, described location 320 is curved near the sidewall of the pivot axis of described second articulated slab 32.In another embodiment, described second articulated slab 32 can be interfixed by two identical iron plates and form.
After described tumbler 3 clamps described first articulated slab 11 with the second articulated slab 32 described in described first fixture 1 pivot joint and two, described locking plate 7 convexedly stretches in the part of described first articulated slab 11 both sides and stretches in hole, described location 320 and can be resisted against described engaging tooth.Utilizing described locking plate 7 two ends supporting described engaging tooth and the first accommodating area 111 sidewall respectively, described locking plate 7 can be limited between described first articulated slab 11 and the second articulated slab 32, so that described tumbler 3 and the first fixture 1 position under multiple angles.Positioning accommodating hole described in hole 320 and two described in two by arranging, the engaging location between described tumbler 3 with the first fixture 1 balances and firm more, is conducive to improving the bearing capacity of headrest and extending the service life of multifunctional lifting frame.
With reference to Fig. 2, enclosing cover 9 described in two is respectively arranged at the outside of the second articulated slab 32 described in two and hides described card seaming element and engaging tooth.Described enclosing cover 9 is in the disc corresponding with described first articulated slab 11 and the second articulated slab 32, the outward flange of described enclosing cover 9 can arrange buckle, and draw-in groove is set at the edge of described second articulated slab 32, make described enclosing cover 9 be buckled on described second articulated slab 32 by buckle with coordinating of draw-in groove.
nullDescribed head rod 4 and the pivot axis of described installing plate 10 are positioned at the lower section of described second articulated slab 32 and the pivot axis of described first articulated slab 11,And described head rod 4 is in the arc being folded upward at,The lower end pivot joint of the upper end of described head rod 4 and described second connecting rod 5,Top position, described second connecting rod 5 lower end and the pivot joint of described rotation bar 30,And the pivot axis of described second connecting rod 5 and described rotation bar 30 is between the pivot axis of described second articulated slab 32 and described first articulated slab 11 and the pivot axis of described rotation bar 30 and described 3rd connecting rod 6,Described 3rd connecting rod 6 is in the arc to described first fixture 1 bending,Described second connecting rod 5 and the pivot axis of described second fixture 2 are positioned at the front of described 3rd connecting rod 6 and the pivot axis of described second fixture 2.Three connecting rods by respectively with the pivot joint of described first fixture the 1, second fixture 2 and tumbler 3, it is ensured that described tumbler 3 second fixture 2 described in while rotating can link and realize Expected Results.
Illustrate that described how relatively described first fixture 1 of tumbler 3 adjusts angle and location below in conjunction with Fig. 1 and Fig. 5 to Fig. 7.
Tumbler 3 described in Fig. 5 (the second articulated slab 32) is in extreme lower position, now the upper end of described locking plate 7 is resisted against the described flank of tooth 321 engaging tooth topmost, and the lower end of described locking plate 7 is resisted against the sidewall of described first lower end, accommodating area 111, described tumbler 3 (the second articulated slab 32) cannot rotate down by relatively described first fixture 1 (the first articulated slab 11) again.When being rotated up described tumbler 3, the upper end of described locking plate 7 by the described flank of tooth 321 pushing tow thus extruding described elastic component 8 and making described elastic component 8 deform, the space deformed by described elastic component 8 and produce, the upper end of described locking plate 7 can move right, now described second articulated slab 32 then can be rotated up by relatively described first articulated slab 11 while locking plate described in pushing tow 7, after turning over a described engaging tooth, described elastic component 8 relies on elastic by described locking plate 7 pushing tow to the right, described locking plate 7 is made again to engage with the described flank of tooth 321, and described second hinged too cannot be backward, namely rotate down, now described tumbler 3 just completes to adjust and be decided to be in another angle.Continue up the described tumbler 3 of rotation, it is possible to make relatively described first articulated slab 11 of described second articulated slab 32 be decided to be in higher angle, as shown in Figure 6.And when needs are toward tumbler 3 described in back rotation, need first described second articulated slab 32 upwards to be pulled extreme position as shown in Figure 7, now locking plate 7 described in described plane 322 pushing and withstanding, described locking plate 7 is made to overcome the elastic force of described elastic component 8 and upper end to slip into described solution lock-bit 113, slip into the described locking plate after described solution lock-bit 113 7 to depart from the described flank of tooth 321, described engaging tooth no longer is produced to support by described locking plate 7, therefore described second articulated slab 32 can freely toward back rotation, after returning to extreme lower position until described tumbler 3, inner side arcwall face in described location by the upper end of described locking plate 7 from the first accommodating area 111 described in fight back in described solution lock-bit 113, then angle adjustment can just be re-started.
In conjunction with Fig. 8 and Fig. 9, when described multifunctional lifting frame is installed on sofa, described installing plate 10 is fixed with sofa body b, the headrest a of described second fixture 2 and sofa fixes, when needing to adjust headrest a angle, pulling headrest a with hands, described second fixture 2 fixing in headrest a drives described tumbler 3 to rotate by the gearing of several connecting rods, thus changing the relative angle of described tumbler 3 and described first fixture 1, namely described headrest a can be positioned different use angles easily.
As shown in Figure 10, in practice, it is possible to install two described multifunctional lifting framves in sofa, two described multifunctional lifting framves are arranged on the both sides of sofa and connect to add the weighing apparatus sense of stiff stability peace by cross bar c each other.
Compared with prior art, owing to being provided with described locking plate 7 and elastic component 8 in the present invention described accommodating hole on described first articulated slab 11, with described second articulated slab 32 of described first articulated slab 11 pivot joint on be provided with the hole, described location 320 with the described flank of tooth 321, and described second fixture 2 is by described head rod 4, the pivot joint relation of the second connecting rod 5 and the 3rd connecting rod 6 realizes linkage with described tumbler 3, when described tumbler 3 rotates relative to described first fixture 1, it is movable thus driving the headrest a being fixed on described second fixture 2 to change angle that described second fixture 2 can follow described tumbler 3, it is sticked in different engaging tooths by described locking plate 7, headrest a can be located in different angles.Described tumbler 3 does not drive described second fixture 2 to do fixed-axis rotation, but utilize the pushing tow of described second connecting rod 5 and the 3rd connecting rod 6 to make described second fixture 2 do certain upset and also move up simultaneously, so that headrest a moves up in the process dug from collapse state and stretches outside leather or cloth set simultaneously, it is ensured that sofa is good looking appearance before and after headrest a angle adjustment.Additionally, described second fixture 2 directly with described first fixture 1 pivot joint, the rotation of therefore fixing with described second fixture 2 headrest a is not also with one end of described first fixture 1 for benchmark, but promoted by several connecting rods, therefore this multifunctional lifting frame installation site in sofa is unrestricted, such that it is able to be arranged on the position in more posteriorly portion and ensure the ride comfort sense of consumer.
It is second embodiment of the present invention as shown in figure 11, multifunctional lifting frame in the present embodiment also includes a linear drive apparatus d with outfan d1, and the second fixture 2 in multifunctional lifting frame, head rod 4, second connecting rod 5, 3rd connecting rod 6 and card seaming element are all identical with above example, above it is respectively formed with for described linear drive apparatus d and outfan d1 thereof the first installation portion 30 ' installed and the second installation portion 10 ' the difference is that the tumbler 3 ' in this multifunctional lifting frame and the first fixture 1 ', and described first installation portion 30 ' and the second installation portion 10 ' are that the same side to described first fixture 1 ' protrudes out bending and formed.The body of described linear drive apparatus d and described first installation portion 30 ' pivot joint, the outfan d1 of described linear drive apparatus d and described second installation portion 10 ' pivot joint.Described linear drive apparatus d is actual can be a cylinder, and outfan d1 is then the piston rod of cylinder.The multifunctional lifting frame in the present embodiment installation site in sofa with in an embodiment identical, do not do and repeat to introduce.By described linear drive apparatus d being articulated in described tumbler 3 ' and the outfan d1 of described linear drive apparatus d being articulated in described first fixture 1 ', after described linear drive apparatus d starts, stretching out or retracting of its outfan d1 can drive described first fixture 1 ' rotate with being relatively distant from tumbler 3 ' or relatively closely rotate, thus realizing being fixed on the automatic adjustment of the angle of the sofa headrest of described second fixture 2, pull headrest without staff, make the operation automatization of angle adjustment and more convenient.
As shown in figure 12, the multifunctional lifting frame in the present embodiment can also use two simultaneously and is arranged on the both sides of sofa and connects to add the weighing apparatus sense of stiff stability peace by cross bar c.
Being the 3rd embodiment of the present invention as shown in figure 13, in the present embodiment, the structure of multifunctional lifting frame is basic identical with first embodiment, is different in that first fixture 1 rod in strip rather than the plate in first embodiment.
The above disclosed preferred embodiments being only the present invention, its effect is to facilitate those skilled in the art to understand and implement according to this, certainly can not limit the interest field of the present invention, the equivalent variations therefore made according to the present patent application the scope of the claims with this, still fall within the scope that the present invention contains.

Claims (10)

1. a multifunctional lifting frame, it is characterised in that: include the first fixture, the second fixture, tumbler, head rod, the second connecting rod, the 3rd connecting rod and card seaming element;nullOne end of described tumbler is articulated in described first fixture and is provided with multiple engaging tooth,Described card seaming element is arranged at described first fixture and is selectively sticked in multiple described engaging tooth so that relatively described first fixture of described tumbler pivots or fixing,One end of described head rod is articulated in described first fixture,One end pivot joint of the other end of described head rod and described second connecting rod,The other end of described second connecting rod is articulated in described second fixture,Described 3rd connecting rod is articulated in the other end of described tumbler and described 3rd connecting rod is articulated in described second fixture,Described second connecting rod and described 3rd connecting rod pivot joint,The pivot axis of described tumbler and the first fixture、The pivot axis of described head rod and the first fixture、The pivot axis of described head rod and the second connecting rod、The pivot axis of described second connecting rod and the second fixture、The pivot axis of described 3rd connecting rod and tumbler、Described 3rd connecting rod is arranged in parallel with the pivot axis of the second fixture and the pivot axis of described second connecting rod and the 3rd connecting rod.
2. multifunctional lifting frame as claimed in claim 1, it is characterized in that: the pivot axis of described head rod and described first fixture is positioned at the lower section of described tumbler and the pivot axis of described first fixture, and described head rod is in the arc being folded upward at, the pivot axis of described second connecting rod and described tumbler is between the pivot axis of described tumbler and described first fixture and the pivot axis of described tumbler and described 3rd connecting rod, described 3rd connecting rod is in the arc to described first fixture bending, the pivot axis of described second connecting rod and described second fixture is positioned at the front of described 3rd connecting rod and the pivot axis of described second fixture.
3. multifunctional lifting frame as claimed in claim 1, it is characterized in that: described card seaming element includes locking plate and elastic component, described tumbler is articulated in one end of described first fixture and offers curved hole, location, one sidewall in hole, described location includes the interconnective flank of tooth and plane, the described flank of tooth forms multiple described engaging tooth, one end that described first fixture is articulated in described tumbler offers accommodating hole, described accommodating hole includes the first accommodating area and the second accommodating area that are interconnected, described locking plate is placed in described first accommodating area actively and described locking plate protrudes from the side of described first fixture and is sticked in described engaging tooth, one end of described elastic component is placed in described second accommodating area, the other end is resisted against described locking plate makes described locking plate perseverance have the trend being positioned at described first accommodating area;The sidewall of the junction of described first accommodating area and the second accommodating area caves inward and forms a solution lock-bit slipped into for one end of described locking plate.
4. multifunctional lifting frame as claimed in claim 3, it is characterised in that: described tumbler offers hole, location described in two, positions the pivot axis of the relatively described tumbler in hole and described first fixture and be centrosymmetric setting described in two;Described first fixture offers accommodating hole described in two, and the pivot axis of the relatively described tumbler of accommodating hole described in two and described first fixture is centrosymmetric setting.
5. multifunctional lifting frame as claimed in claim 3, it is characterized in that: one end of described locking plate contacts at one end of described first accommodating area and can slip into described solution lock-bit under the pushing tow of described plane, the other end of described locking plate has the depression that a width is identical with the thickness of described first fixture, and described depression is sticked in the other end of described first accommodating area.
6. multifunctional lifting frame as claimed in claim 3, it is characterised in that: described elastic component is shell fragment, and one end of described shell fragment curls into circular arc and is placed in described second accommodating area.
7. multifunctional lifting frame as claimed in claim 1, it is characterised in that: described first fixture includes installing plate and the first articulated slab, and described first articulated slab is fixed on the upper end of described installing plate and arranges described card seaming element.
8. multifunctional lifting frame as claimed in claim 1, it is characterized in that: described tumbler includes rotating bar and two second articulated slabs, second articulated slab described in two is relatively fixed to the both sides of one end of described rotation bar, second articulated slab described in two is held on the both sides of described first fixture, and described second articulated slab arranges described engaging tooth.
9. multifunctional lifting frame as claimed in claim 8, it is characterised in that: described multifunctional lifting frame also includes two enclosing covers, and enclosing cover described in two is respectively arranged at the outside of the second articulated slab described in two and hides described card seaming element and engaging tooth.
10. multifunctional lifting frame as claimed in claim 1, it is characterized in that: described multifunctional lifting frame also includes a linear drive apparatus with outfan, described linear drive apparatus and the one pivot joint in described tumbler or the first fixture, the outfan of described linear drive apparatus and the another one pivot joint in described tumbler or the first fixture.
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CN105249746A (en) * 2015-10-28 2016-01-20 佛山市东品美业五金制品有限公司 Adjustable pillow structure
CN110477667A (en) 2019-08-30 2019-11-22 东莞市伟宏智能家居科技有限公司 Electric adjusting device and sofa bracket

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US5855030A (en) * 1996-09-11 1999-01-05 Hickory Springs Manufacturing Co. Folding sofa bed frame structure with two-position TV headrest
CN201870189U (en) * 2010-10-29 2011-06-22 卢伟 Headrest adjuster of sofa
CN201894403U (en) * 2010-11-12 2011-07-13 郑春华 Sofa lifting rack
CN202020094U (en) * 2011-03-14 2011-11-02 卢伟 Novel hinge
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CN203308848U (en) * 2013-06-14 2013-11-27 东莞市伟宏五金塑胶制品有限公司 Large-route hinge
CN203458069U (en) * 2013-07-29 2014-03-05 王勇 Sofa headrest adjusting device
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Denomination of invention: Multifunctional lifter

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