CN111248680A

CN111248680A - Backup pad and supporting component frame

Info

Publication number: CN111248680A
Application number: CN202010195111.8A
Authority: CN
Inventors: 李晓鸿; 陈伟明; 庄岳光; 杨文兵; 陈帅; 李元坤; 尹华光
Original assignee: Remacro Machinery and Technology Wujiang Co Ltd
Current assignee: Ruimai Technology Co ltd
Priority date: 2019-10-09
Filing date: 2020-03-19
Publication date: 2020-06-09
Anticipated expiration: 2040-03-19
Also published as: CN111248682A; CN111248680B; CN213030310U; CN111265049A; WO2021068578A1; WO2021068579A1; WO2021068580A1; CN110731643A

Abstract

The invention discloses a support plate, which is applied to a functional sofa iron frame and comprises: a panel for supporting a flexible bag; the inner side plate is arranged on the lower surface of the panel, and a plurality of pivoting points for pivoting the driving connecting rod group on the functional sofa iron frame are arranged on the inner side plate; the outer side plate is used for connecting a connecting piece on the sofa fabric, the outer side plate is arranged on the lower surface of the panel, and the outer side plate and the inner side plate are oppositely arranged. The supporting plate provided by the invention can be simultaneously connected with a soft bag and a driving connecting rod group; when a user holds the skin, the worker only needs to connect the connecting piece on the sofa fabric to the outer side plate in a buckling mode, the soft bag can be assembled, the skin holding process is simple and convenient, operation is easy, the disassembling difficulty of the connecting piece on the sofa fabric is reduced, the user does not need to bypass the panel, and the sofa fabric wrapped on the soft bag and the panel are prevented from being abraded.

Description

Backup pad and supporting component frame

Technical Field

The invention relates to the technical field of sofa connection and fixation, in particular to a supporting plate and a supporting component frame.

Background

Among the inner structure of current function sofa, the top is equipped with soft package, and the centre is equipped with carries out the bearing to the soft package of top bearing's bearing structure, and the below is equipped with the drive linkage of function sofa iron stand. However, when the two longitudinal rods and the two transverse rods which form the supporting structure are assembled, welding is needed, the installation method is complicated, the repeatability is low, the production efficiency is affected, and the cost is increased; and, in order to bear the weight of the soft package of top, the vertical pole all adopts square steel with the horizontal pole, and raw and other materials quantity is big, and is with high costs.

Chinese patent No. CN2019106372439 "a multidirectional fixed connector, a support frame and a sofa", discloses a multidirectional fixed connector, comprising: the body supporting part and the bearing part extend outwards and turn outwards from the body supporting part; the main body supporting part comprises a vertical fixing plate, and a connecting port used for connecting the front transverse supporting rod is formed in the vertical fixing plate. This multidirectional fixed connector is the L shape, and wherein, the fixed riser of main part supporting part is used for being connected with the mechanism (folding portion) of sofa below, and the accepting part is used for being connected with soft package portion, and the card hole on fixed riser or the accepting part can be used for carrying out the joint with the cladding subsection of soft package portion. Although this patent has reached and has utilized a multidirectional fixed connector to play the purpose that bears soft package portion and connect lower extreme mechanism simultaneously, has practiced thrift raw and other materials, and the cost is reduced, but it still has following defect:

(1) when the leather of the soft packing part is covered on the multidirectional fixed connecting piece, the connecting piece on the leather needs to be clamped on the clamping hole by bypassing the bearing part for supporting the soft packing part, although the connecting piece on the leather can be conveniently clamped on the clamping hole, the disassembly is difficult, and the disassembly can be completed only by extruding the connecting piece on the leather with a hand and pulling out the connecting piece outwards;

(2) in the repeated use of the sofa and the disassembly process of the leather, the leather and the bearing part generate friction, so that the leather is easily abraded, and the service life of the sofa is not prolonged.

Disclosure of Invention

In order to overcome at least one defect in the prior art, the invention provides a support plate, which aims to solve the problems that the prior support plate is difficult to detach the skin, the hand is easy to be injured when the skin is detached, and the sofa fabric is easy to wear.

The technical scheme adopted by the invention for solving the problems is as follows:

a support plate for a functional sofa iron frame, comprising: a panel for supporting a flexible bag; the inner side plate is arranged on the lower surface of the panel, and a plurality of pivoting points for pivoting the driving connecting rod group on the functional sofa iron frame are arranged on the inner side plate; the outer side plate is used for connecting a connecting piece on the sofa fabric, the outer side plate is arranged on the lower surface of the panel, and the outer side plate and the inner side plate are oppositely arranged.

The supporting plate provided by the invention is respectively and correspondingly connected with the soft bag of the sofa and the driving connecting rod group of the functional sofa iron frame through the panel and the inner side plate in the supporting plate so as to realize the simultaneous connection of the supporting plate, the soft bag and the driving connecting rod group; when a user holds the skin, the worker only needs to connect the connecting piece on the sofa fabric to the outer side plate in a buckling mode, the soft bag can be assembled, the skin holding process is simple and convenient, operation is easy, the disassembling difficulty of the connecting piece on the sofa fabric is reduced, the user does not need to bypass the panel, and the sofa fabric wrapped on the soft bag and the panel are prevented from being abraded.

Further, the width of the panel is greater than 5 centimeters.

From this, the support that the panel can be better in the side of soft package increases the support area of soft package, improves the comfort level, prolongs soft package's life.

Furthermore, the inner side plate, the outer side plate and the panel are in an inverted U shape, and the inner side plate, the outer side plate and the panel are integrally bent and formed.

Therefore, the processing of the support plate is convenient, and the support plate is kept to have higher support strength.

Further, the inner side plate is vertically connected with the panel in an L shape.

Further, the outer side plate is vertically connected with the panel in an L shape.

Furthermore, one end of the inner side plate is provided with an L-shaped bearing part used for connecting a rear rod on the functional sofa iron frame.

Further, the L-shaped bearing member comprises a vertical seat for abutting connection with the inner side plate and a supporting plate extending outwards based on the vertical seat.

Furthermore, the supporting plate is vertically connected with the vertical seat in an L shape.

From this, load-carrying members through L shape bearing member and back pole constitution increases soft packet's lifting surface area with bearing human chair to the produced gravity of soft packet when lying and leaning on, guarantees that the installation is firm and reinforcing bearing effect.

Further, the pallet is flush with the upper surface of the panel.

From this, the layer board combines the panel in order to increase the support area that is used for the soft package of bearing, improves the comfort level, prolongs soft package's life.

The invention also provides a support component frame which is applied to the functional sofa iron frame and comprises two support plates, a front rod and a rear rod which are oppositely arranged, wherein the front rod and the rear rod are correspondingly arranged between the two support plates at intervals.

In conclusion, the beneficial effects of the invention are as follows:

1) the panel and the inner side plate in the supporting plate are respectively and correspondingly connected with the soft bag of the sofa and the driving connecting rod group of the functional sofa iron frame, so that the supporting plate is simultaneously connected with the soft bag and the driving connecting rod group;

2) when a user holds the skin, the worker only needs to connect the connecting piece on the sofa fabric to the outer side plate in a buckling mode, the soft bag can be assembled, the skin holding process is simple, convenient and fast, the operation is easy, the difficulty in disassembling the connecting piece on the sofa fabric is reduced, the sofa fabric does not need to bypass the panel, and the abrasion between the sofa fabric wrapped on the soft bag and the panel is avoided;

3) load-bearing structure through L shape bearing part and back pole constitution increases soft packet of support area with bearing human chair to the produced gravity of soft packet when lying and leaning on, improves the comfort level, prolongs soft packet of life, guarantees that the installation is firm and reinforcing bearing effect.

Drawings

Fig. 1 is a schematic structural view of a support plate according to embodiment 1 of the present invention;

FIG. 2 is a schematic view of another perspective structure of the supporting plate shown in FIG. 1;

FIG. 3 is a schematic view of the L-shaped load bearing member shown in FIG. 2;

FIG. 4 is a schematic structural view of a supporting plate according to embodiment 2 of the present invention;

FIG. 5 is a schematic structural diagram of a support assembly frame according to embodiment 3 of the present invention;

FIG. 6 is an exploded view of the support assembly frame shown in FIG. 5;

FIG. 7 is a schematic structural view of a support assembly according to embodiment 3 of the present invention;

FIG. 8 is a schematic view showing the connection of the front bar and the fixing mechanism according to embodiment 3 of the present invention;

FIG. 9 is a schematic structural view of a support assembly frame according to embodiment 4 of the present invention;

fig. 10 is an exploded view of a support assembly frame according to example 4 of the present invention;

FIGS. 11 and 12 are schematic structural views of the front rod and the hook shown in FIG. 9;

FIGS. 13 and 14 are schematic structural views of the rear rod and the hook shown in FIG. 9;

fig. 15, 16 and 17 are schematic structural views of the functional sofa iron frame shown in embodiment 5 of the invention.

Wherein the reference numerals have the following meanings:

1. a base; 2. a support plate; 21. an inner side plate; 22. an outer panel; 23. a panel; 24. a snap-in hole; 25. an L-shaped load bearing member; 251. a vertical seat; 252. a support plate; 26. a hinge point; 3. a drive linkage; 4. a front bar; 41. a first vertical plate; 42. a first transverse plate; 43. a hole; 5. a rear bar; 51. a second vertical plate; 52. a second transverse plate; 6. a serpentine spring; 7. a fixing mechanism; 71. hooking; 711. a protrusion; 72. a hooking end; 73. a fixed end; 8. a leg telescoping assembly; 81. a main footrest connecting rod; 82. a leg linkage; 83. an auxiliary foot stool connecting rod; 84. the auxiliary footstool drives the connecting rod; 9. a backrest assembly; 91. a backrest support; 92. a backrest support bracket; 93. a backrest linkage.

Detailed Description

For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Example 1

Referring to fig. 1 to 3, the invention provides a support plate 2 applied to a functional sofa iron frame, wherein the support plate 2 is used for being simultaneously connected with a soft bag of a functional sofa and a drive connecting rod group 3 of the functional sofa iron frame, and is in snap connection with a connecting piece on a sofa fabric to complete a skin covering process of the sofa fabric, so that the soft bag assembly is realized.

In the present embodiment, the support plate 2 includes an inner plate 21, an outer plate 22, and a panel 23, wherein the inner plate 21 and the outer plate 22 are both disposed on a lower surface of the panel 23, and the outer plate 22 is disposed opposite to the inner plate 21.

In this embodiment, the inner side plate 21 can be used to hinge with the driving linkage 3 of the functional sofa iron frame, and specifically, the inner side plate 21 is provided with a plurality of hinge points 26 for hinging with the driving linkage 3 of the functional sofa iron frame. In another preferred embodiment, the inner side panel 21 may also be used to articulate with the back assembly 9 and leg telescoping assembly 8 of a functional sofa iron frame.

In this embodiment, the outer panel 22 is used as a mating member for cooperating with a connecting member on the sofa fabric to achieve the installation of the soft bag. Specifically, the connecting piece on the sofa fabric can be buckled on the lower edge of the outer side plate 22 so as to realize the fixed connection of the outer side plate 22 and the sofa fabric and further realize the assembly of the soft bag; and the outer side plate 22 and the inner side plate 21 are arranged on the lower surface of the panel 23 relatively, when the support plate 2 is assembled on a functional sofa iron frame, the inner side plate 21 is positioned on the inner side of the panel 23, the outer side plate 22 is positioned on the outer side of the panel 23, when a user holds a skin, the worker only needs to connect a connecting piece on the sofa fabric in a buckling mode to the lower edge of the outer side plate 22, the skin holding process is simple and convenient, the operation is easy, the disassembling difficulty of the connecting piece is reduced, the panel 23 does not need to be bypassed, and the abrasion between the sofa fabric wrapped on a soft bag and the panel 23 is avoided.

In this embodiment, panel 23 is used for supporting soft package, panel 23 is rectangular platelike, just panel 23's width is greater than 5 centimetres, so that support that panel 23 can be better in the side of soft package increases the soft support area who wraps, improves the comfort level, prolongs soft-packaged life.

Thus, in the present embodiment, the inner side plates 21 and the panels 23 of the support plate 2 extending in different directions can simultaneously connect the soft bag of the functional sofa and the drive linkage 3 of the functional sofa iron frame; the outer side plate 22 of the support plate 2 can be used to fixedly connect the connecting elements on the sofa fabric.

Preferably, in order to achieve the effect that the connecting member with soft bag can be detached from the mating member, when the supporting plate 2 of this embodiment is used, a fastening strip needs to be sewn at a position corresponding to the sofa fabric to serve as the connecting member, and when the connecting member is installed, the fastening strip fastens the lower edge of the outer panel 22 to achieve the fixed connection between the outer panel 22 and the sofa fabric.

In the present embodiment, the panel 23 is connected to the top of the inner side plate 21 and the outer side plate 22, so that the inner side plate 21, the outer side plate 22 and the panel 23 substantially constitute an inverted U shape. Preferably, the inner side plate 21 is connected to the panel 23 in an L-shape, and the outer side plate 22 is connected to the panel 23 in an L-shape.

In prior art, in order to support the soft package of top, it is higher to the bearing capacity demand that is used for supporting soft package's backup pad 2, generally adopts square steel, for guaranteeing the bearing effect, needs to adopt comparatively large-scale square steel as the frame connecting piece, leads to the raw and other materials quantity big, with high costs. In this embodiment, the inner side plate 21, the outer side plate 22 and the panel 23 are substantially formed into an inverted U shape, and the U-shaped bearing section provides a better bearing strength, so as to prevent the support plate 2 from deforming under stress during long-term use, and under the condition of the same cross-sectional area, the bearing strength of the U-shaped cross section is better than that of the L-shaped cross section, thereby saving raw materials, reducing production cost and reducing the weight of the functional sofa iron frame.

Preferably, in the present embodiment, the two supporting plates 2 are made of a metal material. Indeed, in another preferred embodiment, the two support plates 2 can also be made of injection-molded engineering plastic, or of a combination of metal and engineering plastic.

Preferably, the inner plate 21, the outer plate 22 and the panel 23 are integrally formed by bending. The inner plate 21, the outer plate 22 and the face plate 23 are formed by bending a steel plate having the same surface in order to facilitate processing and maintain the support plate 2 to have a high support strength.

Note that the inner panel 21, the outer panel 22, and the panel 23 are not limited to being integrally formed by bending, and the inner panel 21, the outer panel 22, and the panel 23 may be fixedly connected by welding.

Referring to fig. 2 and 3, in the present embodiment, one end of the supporting plate 2 is provided with an L-shaped bearing member 25 for connecting a rear rod 5 of a functional sofa iron frame, and the L-shaped bearing member 25 comprises a vertical seat 251 for abutting connection with the inner side plate 21 and a supporting plate 252 extending outwards based on the vertical seat 251.

Preferably, the supporting plate 252 is vertically connected to the vertical seat 251 in an L-shape.

In this embodiment, the L-shaped bearing member 25 is used for bearing the rear rod 5, and the other ends of the two support plates 2 are used for connecting the front rod 4, so that the connection and fixation of the drive linkage in the soft bag and functional sofa iron frame are realized through the square frame formed by the front rod 4, the rear rod 5 and the two support plates 2.

Preferably, the supporting plate 252 is flush with the upper surface of the panel 23, so that the supporting plate 252 is combined with the panel 23 to increase the supporting area for supporting the soft bag, improve the comfort level, and prolong the service life of the soft bag; and, when the L-shaped bearing member 25 is coupled to the inner panel 21 by the vertical seat 251, the supporting plate 252 and the panel 23 are respectively provided at both sides of the coupling position of the inner panel 21 and the vertical seat 251.

During installation, the supporting plate 252 and the face plate 23 of the L-shaped bearing member 25 are respectively arranged at two ends of the inner side plate 21 and the vertical seat 251 which are attached after installation, which is equivalent to symmetrical arrangement.

It should be noted that, in the sofa, based on the habit of leaning on and chair lying of human body, the atress at rear will be greater than the atress of front end, in order to increase the bearing, improves the atress, through the bearing structure of L shape bearing part 25 and back pole 5 constitution with bear the weight of the soft package of top produced gravity when human chair lies and leans on, increase soft packaged bearing area, improve the comfort level, prolong soft packaged life, guarantee that the installation is firm and reinforcing bearing effect.

Example 2:

referring to fig. 4, the structural difference between the supporting plate 2 of the present embodiment and the embodiment 1 is that the supporting plate 2 does not include the outer side plate 22, which is specifically described as follows:

the backup pad 2 of this embodiment is including being used for supporting soft panel 23 of package and vertical fixation the interior plate 21 of panel 23 lower surface is equipped with a plurality of buckle holes 24 that are used for the connecting piece on the joint sofa fabric on interior plate 21, interior plate 21 and buckle hole 24 constitute the fitting piece of this embodiment for thereby realize soft installation of package with the connecting piece cooperation work on the sofa fabric. In the actual manufacturing process, the fastening holes 24 are square holes, and a plurality of square holes are distributed on the inner side plate 21 at equal intervals.

Specifically, the inner side plate 21 and the face plate 23 substantially form an inverted L shape, and the inner side plate 21 is located inside the lower surface of the face plate 23; with embodiment 1 the same way, panel 23 is rectangular platelike, just the width of panel 23 is greater than 5 centimetres, so that support that panel 23 can be better in the side of soft package increases the soft support area of package, improves the comfort level, prolongs soft-packaged life.

Thus, in the present embodiment, the inner side plates 21 and the face plates 23 of the support plate 2 extending in different directions can simultaneously connect the soft bag of the functional sofa and the drive link group 3 of the functional sofa iron frame.

Preferably, in order to achieve the detachable action of the connecting member of the sofa fabric and the mating member, when the supporting plate 2 of this embodiment is adopted, a buckle needs to be sewn at a position corresponding to the sofa fabric to serve as the connecting member, and when the sofa fabric is installed, the buckle winds under the supporting plate 2 and is inserted into the buckle hole 24 on the inner side plate 21 to achieve clamping, and the connection of the supporting plate 2 and the sofa fabric is completed.

In this embodiment, the inner side plate 21 and the panel 23 are formed by integral bending. The inner side plate 21 and the face plate 23 are formed by bending the same steel plate for the convenience of processing and maintaining the support plate 2 with a high support strength.

It should be noted that the inner panel 21 and the panel 23 are not limited to be integrally formed by bending, and the inner panel 21, the outer panel 22 and the panel 23 may be fixedly connected by welding.

In this embodiment, the inner side plate 21 also has a function of hinging the driving linkage 3, and the specific connection relationship is as described in embodiment 1, so that the inner side plate 21 is adopted to connect the driving linkage 3 with the buckle on the sofa fabric, thereby saving the material of the support plate 2 and reducing the cost and weight.

In this embodiment, the support plate 2 is also provided with an L-shaped bearing member 25, the features of the L-shaped bearing member 25 are as described in embodiment 1, and this embodiment will not be described in detail.

Example 3

Referring to fig. 5 and 6, the present embodiment provides a support assembly frame applied to a functional sofa iron frame, the support assembly frame includes two support plates 2, a front rod 4 and a rear rod 5, which are oppositely disposed, as described in embodiment 1 or embodiment 2, and the front rod 4 and the rear rod 5 are correspondingly disposed between the two support plates 2 at an interval.

Preferably, in this embodiment, the front rod 4 and the rear rod 5 are made of metal. Indeed, in another preferred embodiment, said front rod 4 and rear rod 5 can also be made by injection moulding of engineering plastics, or by a combination of metal and engineering plastics.

In this embodiment, the two ends of the front rod 4 are respectively connected to the two support plates 2 through bolts, and the rear rod 5 is connected to the L-shaped bearing member 25.

In this embodiment, through the articulated cooperation relation of pin joint 26 on the interior curb plate 21 of backup pad 2 and the drive linkage 3 of function sofa iron stand, the supporting component frame can combine to function sofa iron stand on, and is different with the bearing structure who can dismantle the equipment among the prior art on function sofa iron stand and be used for supporting soft package, has simplified the structure of current function sofa iron stand, has improved assembly efficiency and production efficiency, has saved the material, the cost is reduced.

Among the two oppositely arranged supporting plates 2, when being installed, the supporting plate 252 and the face plate 23 of the L-shaped bearing member 25 are respectively arranged at two ends of the inner side plate 21 and the vertical seat 251 which are attached after being installed, which is equivalent to symmetrical arrangement. Two groups of supporting plates 252 are located at the inner side, the panel 23 is located at the outer side and is supported at two sides of the lower end of the soft bag, and two ends of the rear rod 5 in the length direction are respectively arranged on the two symmetrically arranged supporting plates 252.

As shown in fig. 8, in the present embodiment, the front rod 4 and the rear rod 5 adopt an inverted U-shaped channel iron structure, wherein the front rod 4 includes two first vertical plates 41 disposed opposite to each other and a first horizontal plate 42 connecting the two first vertical plates 41, and the two first vertical plates 41 are respectively located on the inner side and the outer side of the lower surface of the first horizontal plate 42; the rear rod 5 comprises two opposite second vertical plates 51 and a second transverse plate 52 connecting the two second vertical plates 51, and the two second vertical plates 51 are respectively positioned on the inner side and the outer side of the lower surface of the second transverse plate 52.

Preferably, the first vertical plate 41 and the first transverse plate 42 are integrally formed by bending, and the second vertical plate 51 and the second transverse plate 52 are integrally formed by bending.

When the front rod 4 and the rear rod 5 are needed to fix the soft bag, the connecting piece on the sofa fabric can be buckled on the lower edges of the first vertical plate 41 on the outer side of the front rod 4 and the second vertical plate 51 on the outer side of the rear rod 5, so that the front rod 4, the rear rod 5 and the soft bag can be assembled. Combine two the backup pad 2 with the assembly effect of soft package for soft package with the connection of supporting component frame is more firm, and the sofa fabric of parcel on soft package can be mended skin inseparabler and pleasing to the eye.

Referring to fig. 7, the present embodiment further provides a support assembly applied to a sofa iron frame, wherein the support assembly includes the support assembly frame, a plurality of supporting elastic members, and a fixing mechanism 7 for detachably fixing the supporting elastic members on the support assembly frame.

The supporting elastic element is detachably fixed on the front rod 4 and the rear rod 5 through a fixing mechanism 7.

In this embodiment, bearing elastic component is serpentine spring 6, adopts serpentine spring 6 is as the effect of bearing elastic component in order to play the elasticity bearing to soft package. Indeed, in other preferred embodiments, the supporting elastic member may also be an elastic band or a combination of a spring and an elastic band, so as to elastically support the soft bag of the sofa.

As shown in fig. 8, taking the front rod 4 as an example to specifically show the connection relationship between the fixing mechanism 7 and the front rod 4, the fixing mechanism 7 of this embodiment is formed by vertically connecting a fixing end 73 and a hooking end 72, a plurality of holes 43 are provided on the outer side walls of the front rod 4 and the rear rod 5 for the fixing end 73 to be inserted and fixed, the fixing end 161 of the fixing mechanism 7 is inserted and fixed in the hole 43 of the front rod 4 or the rear rod 5, and the hooking end 72 is disposed on the upper surface of the front rod 4 or the rear rod 5 and connected to the serpentine spring 6, as shown in fig. 7, a plurality of the serpentine springs 6 of this embodiment form a spring surface, and the spring surface is an arc surface protruding upward, and the spring surface with this structure is adopted to improve the use comfort of a user.

Specifically, the holes 43 are located on a first riser 41 outside the front rod 4 and a second riser 51 outside the rear rod.

Preferably, as shown in fig. 8, the fixing end 73 is a zigzag structure, one end of the zigzag structure is snapped into the hole 43, and the other end of the zigzag structure is connected to the hook end 72, so that when in use, the pulling edge of the serpentine spring 6 can fix the fixing mechanism 7 on the front rod 4 or the rear rod 5 through the zigzag structure, thereby fixing the fixing mechanism 7 without screws, reducing the cost, and improving the assembly efficiency of the fixing mechanism 7.

Example 4:

referring to fig. 9 to 14, the supporting assembly of the present embodiment is different from the supporting assembly of embodiment 3 in the structure of the fixing mechanism 7, which is described in detail as follows:

a plurality of hooks 71 are respectively arranged on the front rod 4 and the rear rod 5, the hooks 71 on the front rod 4 and the rear rod 5 are correspondingly arranged, the number of the hooks is corresponding to that of the serpentine springs 6, and two ends of each serpentine spring 6 are correspondingly connected to the hooks 71. In this embodiment, the hook 71 acts as the fixing means 7, thus completing the detachable connection between the serpentine spring 6 and the front rod 4 and the rear rod 5.

Referring to fig. 11 and 12, in particular, the hooks 71 are substantially C-shaped, and a plurality of the hooks 71 on the front rod 4 are uniformly arranged on the second transverse plate 52 along the length direction of the front rod 4, and preferably, the hooks 71 are formed by stamping and integrally forming the second transverse plate 52.

Referring to fig. 13 and 14, a plurality of hooks 71 on the rear rod 5 are uniformly arranged on the second transverse plate 52 along the length direction of the rear rod 5, and preferably, the hooks 71 are formed by stamping and integrally forming the second transverse plate 52.

Therefore, compared with the prior art that the hooks are welded or connected to the cross beam in other forms, the hooks 71 which are integrally formed by punching the transverse plates on the front rod 4 and the rear rod 5 have higher strength, are not easy to damage under the tension of the serpentine spring 6, and therefore the service life of the whole sofa is prolonged; the assembly process is simplified, and the steps of welding the hook are reduced.

Referring to fig. 12 and 14, in this embodiment, the hooks 71 are provided with protrusions 711 for limiting the serpentine spring 6 from disengaging, when the serpentine spring 6 is hooked on two corresponding hooks 71, the protrusions 711 on the two hooks 71 can prevent the serpentine spring 6 from disengaging from the hooks 71 during use, and when the serpentine spring 6 is hooked and assembled, the ends of the serpentine spring 6 do not need to be bent to reinforce the connection with the hooks, so that the assembly steps of the serpentine spring 6 are reduced, and the production efficiency is improved.

Specifically, the protrusion 711 is disposed above an inner wall of the C-shaped hook cavity of the hook 71.

Example 5:

referring to fig. 15 to 17, the present embodiment provides a functional sofa iron frame applied to a sofa, where the functional sofa iron frame includes a support assembly, a base 1, two sets of oppositely disposed driving link groups 3, two symmetrically disposed backrest assemblies 9, and two symmetrically disposed leg stretching assemblies 8 as described in embodiment 3 or embodiment 4, upper ends of the two driving link groups 3 are respectively hinged to two inner side plates 21, and lower ends of the two driving link groups 3 are both hinged to the base 1, so as to connect the support assembly to the base 1.

In this embodiment, the backrest module 9 connects the base 1 to the inner plate 21, and the leg extension module 8 is connected to the inner plate 21.

Specifically, the leg stretching assembly 8 includes a main footrest link 81 and a leg link group 82, and the main footrest link 81 is hinged to the inner side plate 21 through the leg link group 82; in addition, the leg stretching assembly 8 further includes a sub-ottoman link 83 and a sub-ottoman drive link 84, wherein the sub-ottoman link 83 is connected to the main ottoman link 81, and the sub-ottoman drive link 84 is connected between the leg linkage 82 and the sub-ottoman link 83.

Specifically, the backrest assembly 9 includes a backrest support bracket 91, a backrest support bracket 92, and a backrest linkage 93, and the backrest support bracket 91 is connected to the inner side plate 21 and the base 1 via the backrest support bracket 92 and the backrest linkage 93.

In prior art, the seat of function sofa iron stand wraps the frame by backup pad 2 is as supporting, is about to seat package frame fixed connection two in order to realize in backup pad 2 the seat wraps the fixed of frame, then installs on the seat package frame bearing elastic component and soft package.

However, in the present invention, the supporting component for supporting the soft bag is mainly composed of two supporting plates 2, a front rod 4, a rear rod 5 and a supporting elastic member, and the two supporting plates 2 are respectively connected to the base 1 through a hinge driving linkage 3, so that the supporting component is directly combined to the functional sofa iron frame, a structure for supporting the soft bag by introducing an additional seat frame is abandoned, the production process of the sofa iron frame is simplified, the assembly efficiency and the production efficiency are improved, the material consumption is saved, and the cost is reduced; make by the metal material preceding pole 4 and back pole 5, joint strength is high, is convenient for realize standardized, automated production to make whole sofa iron stand structure can produce in same workshop, reduce the logistics cost of internal production, further improve production efficiency.

The technical means disclosed in the invention scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and such improvements and modifications are also considered to be within the scope of the present invention.

Claims

1. The utility model provides a backup pad is applied to function sofa iron stand, its characterized in that includes:

a panel (23) for supporting a soft pack;

the inner side plate (21) is arranged on the lower surface of the panel (23), and a plurality of pivoting points (26) for pivoting a driving connecting rod group on the functional sofa iron frame are arranged on the inner side plate (21);

the outer side plate (22) is used for connecting a connecting piece on the sofa fabric, the outer side plate (22) is arranged on the lower surface of the panel (23), and the outer side plate (22) is arranged opposite to the inner side plate (21).

2. The support plate of claim 1, wherein: the width of the panel (23) is greater than 5 cm.

3. The support plate of claim 1, wherein: the inner side plate (21), the outer side plate (22) and the panel (23) are in an inverted U shape, and the inner side plate (21), the outer side plate (22) and the panel (23) are integrally bent.

4. The support plate of claim 3, wherein: the inner side plate (21) is vertically connected with the panel (23) in an L shape.

5. The support plate of claim 3, wherein: the outer side plate (22) is vertically connected with the panel (23) in an L shape.

6. The support plate of claim 1, wherein: one end of the supporting plate (2) is provided with an L-shaped bearing part (25) used for connecting a rear rod on the functional sofa iron frame.

7. The support plate of claim 6, wherein: the L-shaped bearing part (25) comprises a vertical seat (251) for abutting connection with the inner side plate (21) and a supporting plate (252) extending outwards based on the vertical seat (251).

8. The support plate of claim 7, wherein: the supporting plate (252) is vertically connected with the vertical seat (251) in an L shape.

9. The support plate of claim 8, wherein: the retainer plate (252) is flush with the upper surface of the face plate (23).

10. The utility model provides a supporting component frame, is applied to function sofa iron stand, its characterized in that: the support assembly frame comprises two oppositely arranged support plates (2) according to any one of claims 1 to 9, a front rod (4) and a rear rod (5), wherein the front rod (4) and the rear rod (5) are correspondingly arranged between the two support plates (2) at intervals.