CN211748285U

CN211748285U - Backrest assembly for sofa and backrest assembly assembling structure

Info

Publication number: CN211748285U
Application number: CN202020066952.4U
Authority: CN
Inventors: 虞红潮
Original assignee: UE Furniture Co Ltd
Current assignee: UE Furniture Co Ltd
Priority date: 2020-01-13
Filing date: 2020-01-13
Publication date: 2020-10-27
Anticipated expiration: 2030-01-13

Abstract

The utility model discloses a backrest assembly and backrest assembly structure for sofa, which comprises a back frame which can be selectively opened and closed, wherein the back frame comprises a first back frame and a second back frame, one end of the first back frame and one end of the second back frame are hinged, and the other end of the first back frame and the other end of the second back frame are selectively opened or closed; in a closed state, the first back frame and the second back frame are close to each other; in the open state, an included angle smaller than 90 degrees is formed between the first back frame and the second back frame; compared with the prior art, the backrest assembly enables the back frame to be flatter, is beneficial to reducing the packaging volume, is convenient to transport and greatly reduces the transportation cost; in addition, the backrest assembly is simple to mount or dismount.

Description

Backrest assembly for sofa and backrest assembly assembling structure

Technical Field

The utility model relates to a sofa field, in particular to a back subassembly and back subassembly package assembly for sofa.

Background

As a common household article, the sofa is an essential seat for family household life. However, the backrest and the main seat of the sofa in the market are usually integrally formed, the backrest and the main seat cannot be disassembled, and the volume and the weight of the sofa are usually larger and heavier, so that much inconvenience is brought to carrying and loading the sofa, and the transportation cost is increased.

CN 201320407449.0's chinese utility model patent discloses a "sofa with detachable backrest", this sofa includes base, cushion, backrest, cushion, and the both ends of sofa are equipped with the handrail, and cushion and backrest are disjunctor design, and the cushion is located on the base, and the backrest adopts swing joint with the base, the handrail adopts swing joint to be fixed with the sofa. When the box is packed, the back cushion and the backrest are disassembled and placed on the seat cushion, so that the box packing volume generated by the backrest can be reduced, the box packing amount is increased, and the freight cost is saved. Although the backrest and the main body seat are designed to be detachable, the main body seat can not be detached, and the backrest is also independent, so that the sofa still occupies a relatively large space during transportation, and the volume cannot be reduced.

Disclosure of Invention

The utility model overcomes the defects in the prior art, firstly, the backrest component for the sofa is designed into a structure which can be opened and closed, and the back frame is in the involutory posture in the packing state, thereby leading the back frame to be more flat and being beneficial to reducing the packing volume; and under the use condition, the back frame opens according to the predetermined angle, stands on seat subassembly upper end and is connected fixedly with the seat subassembly, can satisfy the requirement that the back inclines certain angle simultaneously.

The first back frame is fixedly connected with the seat frame when the backrest assembly is assembled with the seat assembly, so that the connection stability can be ensured, the use safety is improved, and the backrest assembly structure meets the safety standard; and the second back frame is movably connected with the seat frame, so that the connection speed can be improved.

The technical scheme of the utility model is realized like this:

the backrest assembly for the sofa comprises a back frame capable of being selectively opened and closed, wherein the back frame comprises a first back frame and a second back frame, one ends of the first back frame and the second back frame are hinged, and the other ends of the first back frame and the second back frame are selectively opened or closed; in a closed state, the first back frame and the second back frame are close to each other; in the open state, an included angle smaller than 90 degrees is formed between the first back frame and the second back frame.

Preferably, the lower end of the first back frame is fixedly provided with a connecting sheet for connecting the sofa seat frame, and the connecting sheet is provided with a mounting hole; the lower end of the second back frame is fixedly provided with a bolt. The connecting sheet is used for fixed connection, and the bolt is used for inserting and matching.

Preferably, the connecting pieces are arranged at the left end and the right end of the lower end of the first back frame, and the bolts are arranged at the left end and the right end of the lower end of the second back frame. The connecting piece and the bolt are respectively arranged at the left end and the right end, so that normal use is not hindered.

A backrest assembly assembling structure comprises a seat assembly and the backrest assembly, wherein the seat assembly comprises a seat frame which is horizontally placed, a back frame is positioned above the rear part of the seat frame, and the back frame is vertically placed on the seat frame; the first back frame is fixedly connected with the seat frame, and the second back frame is movably connected with the seat frame.

The first back frame is fixedly connected with the seat frame, so that the connection stability can be ensured, the use safety is improved, and the safety standard is met; and the second back frame is movably connected with the seat frame, so that the connection speed can be improved.

Preferably, the lower end of the first back frame is fixedly provided with a connecting sheet for connecting the sofa seat frame, and the connecting sheet is provided with a mounting hole; the lower end of the second back frame is fixedly provided with a bolt, and a bolt hole is formed in the seat frame corresponding to the bolt; when the backrest component is connected with the seat component, the first back frame is in front, and the second back frame is behind; the connecting sheet is connected with the seat frame through screws; the bolt is inserted in the bolt hole of the seat frame. The first back frame is arranged in front and used for supporting the back of a human body; the first back frame is connected with the seat frame through screws, so that the disassembly is facilitated, and meanwhile, after the first back frame and the seat frame are locked through the screws, the first back frame and the seat frame are kept relatively fixed, the connection is firmer, and the use safety is also improved; the second back frame only needs to be inserted into the bolt hole through the bolt at the back, thereby improving the connection speed.

Preferably, the seat frame is formed with a seat support surface comprising a plurality of S-shaped springs or bandages.

Adopted above-mentioned technical scheme the utility model discloses a design departure point, theory and beneficial effect are:

compared with the prior art, the backrest component enables the back frame to be flatter, is beneficial to reducing the packaging volume, is convenient to transport and greatly reduces the transportation cost; in addition, the backrest assembly is simple to mount or dismount.

Drawings

Fig. 1 is a schematic perspective view of a seat frame and a support frame of the present invention when they are not combined;

fig. 2 is a schematic perspective view of a second embodiment of the present invention when the seat frame and the supporting frame are not combined;

fig. 3 is a schematic perspective view of the seat frame and the supporting frame combined in the embodiment of the present invention;

fig. 4 is a schematic perspective view of the connection plate and the support frame after being combined according to the embodiment of the present invention;

fig. 5 is a schematic perspective view of the connecting rod and the supporting frame combined together according to the embodiment of the present invention;

fig. 6 is a schematic perspective view illustrating the backrest assembly and the seat assembly of the present invention when they are not assembled;

fig. 7 is a first schematic perspective view of a backrest module according to an embodiment of the present invention;

fig. 8 is a schematic perspective view of a backrest assembly according to an embodiment of the present invention;

fig. 9 is a schematic perspective view of the backrest module and the seat module according to the embodiment of the present invention;

fig. 10 is a schematic perspective view of the armrest assembly, the backrest assembly and the seat assembly according to the embodiment of the present invention;

fig. 11 is a schematic perspective view of a sofa according to an embodiment of the present invention;

fig. 12 is a schematic perspective view of the detachable sofa frame structure after being detached and before being packed and boxed according to the embodiment of the present invention;

fig. 13 is a schematic perspective view of the seat assembly assembled into a sofa according to the embodiment of the present invention.

The figures are numbered: a seat frame 1; a support frame 2; a support surface 3; an S-shaped spring 4; a plug-in post 5; a slot 6; a bottom bar 7; a vertical rod 8; a bushing 9; a backing plate 10; a jack 11; an inner sleeve 12; an outer sleeve 13; a notch 14; an elastic hook 15; an edge 16; a snap-in hole 17; a first back frame 18; a second back frame 19; a connecting piece 20; a plug pin 21; a latch hole 22; a connecting plate 23; a connecting rod 24; a connecting pin 25; a pin hole 26; the armrest member 27; an upper rod 28; a lower bar 29; a side lever 30; a crosspiece 31; a first connecting plate 32; a second connecting plate 33; a flexible support pad 34; a connection hole 35; a screw 36.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

In the description of the present invention, the term "at least one" means one or more unless explicitly defined otherwise. The terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The specific implementation manner of the utility model is as follows:

the utility model discloses a backrest subassembly is detachable sofa frame construction's important component, next makes detailed description:

as shown in fig. 1-13, the present invention first provides a detachable sofa frame structure, which comprises a seat component 37 and a backrest component 38.

As shown in fig. 1-4, the seat assembly 37 includes a seat frame 1 and support frames 2 located at the left and right sides of the seat frame 1, the seat frame 1 is a horizontally disposed rectangular frame, a seat support surface 3 is formed on the seat frame 1, and the seat support surface 3 includes a plurality of S-shaped springs 4; the supporting frame 2 is a vertically arranged U-shaped frame, the seat frame 1 is perpendicular to the supporting frame 2, and the seat frame 1 is located at the upper end of the supporting frame 2.

As shown in fig. 1 and 2, the seat frame 1 and the supporting frame 2 are connected in a plug-in manner, specifically: the seat frame 1 and the supporting frame 2 are matched in a splicing manner through a splicing mechanism, the splicing mechanism comprises a splicing column 5 and a slot 6, and the splicing column 5 is vertically and downwards fixedly arranged at four corners of the seat frame 1; the support frame 2 include bottom bar 7 and connect in the montant 8 at bottom bar 7 both ends, slot 6 sets up the top of montant 8.

When the seat frame needs to be assembled, the inserting columns 5 at the four corners of the seat frame 1 are inserted into the inserting grooves 6 at the top ends of the four vertical rods 8, the position finding is fast, and the connection is also convenient.

As shown in fig. 1-3, in order to fill the gap between the post 5 and the slot 6 and eliminate the sound caused by the metal-to-metal friction, a bushing 9 is further disposed between the post 5 and the slot 6, the bushing 9 is of a double-layer structure, the bushing 9 includes a backing plate 10, a jack 11 through which the post 5 passes is disposed at the center of the backing plate 10, an inner sleeve 12 and an outer sleeve 13 are respectively extended downward from the jack 11 and the periphery of the jack 11, a space is left between the inner sleeve 13 and the outer sleeve 13, the inner sleeve 12 is used for being in plug-in fit with the post 5, so that the post 5 is held to make the plug more tight and eliminate the gap, and a gap 14 is left at the end of the inner sleeve 12 away from the backing plate 10, so that the lower end of the inner sleeve 12 has elasticity, which is beneficial to accommodating the post 5, and increases the friction.

The outer sleeve 13 is used for being matched with the vertical rod 8 in a clamping mode so as to fix the whole bushing 9; specifically, an elastic hook 15 is formed by prefabricating a non-through notch on the side wall of the outer sleeve 13, and the part of the cushion plate 10, which extends outwards beyond the outer sleeve 13 in the radial direction and exceeds the outer sleeve 13, forms a rim 16; the vertical rod 8 is a hollow rod, a clamping hole 17 is formed in the outer wall of the upper end of the vertical rod 8, after the lining 9 is inserted into the slot 6, the elastic clamping hook 15 is clamped into the clamping hole 17, and the edge 16 is lapped at the opening of the slot 6 at the upper end of the vertical rod 8.

As shown in fig. 6-10, the backrest module 38 includes a first back frame 18 and a second back frame 19 that can be selectively opened and closed, wherein one end of the first back frame 18 and one end of the second back frame 19 are hinged, and the other end of the first back frame 18 and the other end of the second back frame 19 can be selectively opened or closed.

1. In the closed state, as shown in fig. 8, the first and

second back frames

18 and 19 are close to each other, and are parallel and close to each other, which is beneficial to reducing the packaging volume.

2. In the open state, as shown in fig. 6, 7, 9 and 10, the first and

second back frames

18 and 19 are open to form an angle of less than 90 degrees therebetween.

The backrest component is connected with the seat frame 1 in a combined manner, so that the requirement of supporting a human body is met. The following is the connection between the two specifically:

as shown in fig. 6-8, a connecting piece 20 is fixedly arranged at the lower end of the first back frame 18, and the connecting piece 20 is connected with the seat frame 1 through a screw; the lower end of the second back frame 19 is fixedly provided with a bolt 21, a bolt hole 22 is correspondingly arranged on the seat frame 1, and the bolt 21 is inserted in the bolt hole 22.

In the embodiment, the first back frame 18 is arranged in front and used for supporting the back of a human body, so that the first back frame 18 is connected with the seat frame 1 through screws, and the use safety is improved; the second back frame 19 is inserted into the pin hole 22 through the pin 21.

As shown in fig. 4, the supporting frame further comprises a reinforcing component for keeping the supporting frame 2 in a stable supporting state, the reinforcing component is a connecting plate 23, the two connecting plates 23 are perpendicular to the supporting frame 2 and are respectively located on the front side and the rear side of the seat frame 1; two ends of the two connecting plates 23 are respectively fixedly connected with the two supporting frames 2 through fasteners; specifically, a connecting hole 35 is formed in the vertical rod 8 of the support frame 2, the connecting hole 35 is a threaded hole, and after the connecting plate 23 and the vertical rod 8 lean against each other, a screw is screwed into the connecting hole 35.

As shown in fig. 5, the reinforcing member may be a connecting rod 24, connecting pins 25 are fixedly disposed at two ends of the connecting rod 24, pin holes 26 are correspondingly disposed on the support frame 2 and the seat frame 1, and the connecting pins 25 at two ends of the connecting rod 24 are correspondingly inserted into the pin holes 26 of the support frame 2 and the seat frame 1.

As shown in fig. 10, the chair further comprises armrest parts 27 for supporting the arm, wherein the armrest parts 27 are positioned at the left and right sides of the seat assembly, and the armrest parts 27 are connected with the seat assembly.

The armrest component 27 is a rectangular frame, and comprises an upper rod 28 and a lower rod 29 which are horizontally arranged and side rods 30 connected with the two ends of the upper rod 28 and the lower rod 29, a crosspiece 31 is arranged in the middle of the armrest component 27, and the crosspiece 31 is fixedly connected between the two side rods 30; a first connecting plate 32 is fixedly arranged on the seat frame 1, and the first connecting plate 32 is connected with the crosspiece 31 through screws; the support frame 2 is provided with a second connecting plate 33, and the second connecting plate 33 is connected with the lower rod 29 through screws.

When the seat cushion is required to be packaged, the seat frame 1, the supporting frame 2 and the backrest assembly are horizontally placed and stacked up and down to be in a state shown in fig. 12, then the backrest cushion and the seat cushion are stacked together and placed in a box for packaging, and the packaging volume is greatly reduced.

The utility model provides a sofa, as shown in fig. 11, comprising the detachable sofa frame structure, wherein the seat component and the backrest component are both provided with flexible supporting pads 34, the flexible supporting pads 34 are backrest cushions or cushions, the structure of the flexible supporting pads 34 is generally internal sponge, and the outside is wrapped by fabric or leather; the seat assembly and the backrest assembly are sleeved with a flexible cover to protect the sofa.

When two or three people positions are needed, the two seat parts are spliced into a whole as shown in fig. 13, and the folding chair is simple and convenient. The connection between the two seat assemblies is realized by connecting the two seat frames 1 together through screws 36.

Claims

1. A backrest assembly for a sofa, comprising: the foldable back frame comprises a first back frame and a second back frame, wherein the first back frame and the second back frame are selectively opened or closed; in a closed state, the first back frame and the second back frame are close to each other; in the open state, an included angle smaller than 90 degrees is formed between the first back frame and the second back frame.

2. The back assembly for a sofa of claim 1, wherein: the lower end of the first back frame is fixedly provided with a connecting sheet for connecting the sofa seat frame, and the connecting sheet is provided with a mounting hole; the lower end of the second back frame is fixedly provided with a bolt.

3. The backrest assembly for a sofa of claim 2, wherein: the connecting piece sets up both ends about first back of the body frame lower extreme, and the bolt setting is both ends about second back of the body frame lower extreme.

4. A backrest assembly assembling structure is characterized in that: comprising a seat assembly and a backrest assembly as claimed in claim 1, the seat assembly comprising a horizontally disposed seat frame, a back frame positioned over a rear portion of the seat frame and the back frame standing on the seat frame; the first back frame is fixedly connected with the seat frame, and the second back frame is movably connected with the seat frame.

5. The assembly structure of claim 4, wherein: the lower end of the first back frame is fixedly provided with a connecting sheet for connecting the sofa seat frame, and the connecting sheet is provided with a mounting hole; the lower end of the second back frame is fixedly provided with a bolt, and a bolt hole is formed in the seat frame corresponding to the bolt; when the backrest component is connected with the seat component, the first back frame is in front, and the second back frame is behind; the connecting sheet is connected with the seat frame through screws; the bolt is inserted in the bolt hole of the seat frame.

6. The back assembly structure of claim 4, wherein: the seat frame is provided with a seat supporting surface, and the seat supporting surface comprises a plurality of S-shaped springs or bandages.