WO2021143536A1

WO2021143536A1 - Detachable sofa frame structure and sofa

Info

Publication number: WO2021143536A1
Application number: PCT/CN2020/141958
Authority: WO
Inventors: 虞红潮
Original assignee: 永艺家具股份有限公司
Priority date: 2020-01-13
Filing date: 2020-12-31
Publication date: 2021-07-22
Also published as: CN211748267U

Abstract

A detachable sofa frame structure, comprising a seat portion assembly (37) and a backrest assembly (38); the seat portion assembly (37) comprises a seat frame (1) and support frames (2) that are located on two sides of the seat frame (1), the seat frame (1) being vertical to the support frames (2), and the seat frame (1) being pluggably connected to the support frames (2); the backrest assembly (38) comprises a back frame which is selectively opened and closed; and when the backrest assembly (38) is combined with the seat portion assembly (37), the back frame is connected to the seat portion assembly (37) after being opened according to a preset angle. A sofa comprises a detachable sofa frame structure, a flexible support pad (34) is provided on both the seat portion assembly (37) and the backrest assembly (38), and a flexible cover is sleeved outside of the the seat portion assembly (37) and the backrest assembly (38).

Description

A detachable sofa frame structure and sofa technical field

[0001] The present invention relates to the field of sofas, and in particular to a detachable sofa frame structure and a sofa. Background technique

[0002] As a common household item, a sofa is an indispensable seat in the household life of a family. However, the backrest and the main seat of the sofa on the market are usually integrally formed. The backrest and the main seat cannot be disassembled. The volume and weight of the sofa are usually relatively large and heavy. Therefore, it brings a lot of inconvenience to the sofa transportation and cabinet, and increases the transportation cost. .

[0003] The Chinese invention patent of CN201320407449. 0 discloses "a sofa with a detachable backrest". The sofa includes a base, a back cushion, a backrest, and a cushion. The two ends of the sofa are provided with armrests, and the back cushion and backrest are in one piece design. Located on the base, the backrest is movably connected to the base, and the armrest is fixed to the sofa by movably connecting. When packing, the back cushion and backrest are disassembled and placed on the seat cushion, which can reduce the packing volume produced by the backrest, increase the packing volume, and save freight costs. Although the backrest and the main seat of the sofa are designed to be detachable, the main seat itself cannot be disassembled, and the backrest is also independent. Therefore, it still occupies more space during transportation and cannot be reduced in size. Overview of the invention Technical problem Solutions to problems Technical solutions

[0004] The present invention overcomes the above-mentioned shortcomings in the prior art. First, a detachable sofa frame structure is provided. The detachable sofa frame structure and the sofa divide the seat component into a seat frame and two Two supporting frames, the two supporting frames are located on the left and right sides of the seat frame or the front and rear sides, and are connected by plug-in connection, which is very convenient to disassemble; and the backrest component is designed as an openable structure. In the packaged state, the back The frame is in an aligned posture, so that the back frame is flatter, which is beneficial to reduce the packaging volume; and in use, the back frame opens at a preset angle, stands on the upper end of the seat assembly and is connected and fixed with the seat assembly, and at the same time It can meet the requirement of a certain angle of the backrest. [0005] Then a sofa is provided. The sofa includes the above-mentioned detachable sofa frame structure and a flexible support cushion, which is convenient for disassembly and assembly, and during transportation, the flexible support cushion and the sofa frame structure can be disassembled and packaged. The volume is minimized; in addition, according to the needs of users, the sofa is suitable for splicing into two-person, three-person sofas, etc.

[0006] The technical solution of the present invention is realized as follows:

[0007] A detachable sofa frame structure includes a seat assembly and a backrest assembly, the seat assembly includes a seat frame and a support frame located on both sides of the seat frame, the seat frame and the support frame are perpendicular to each other, and the seat frame and The support frame is a plug-in connection; the backrest assembly includes a back frame that is selectively stretched and closed. When combined with the seat assembly, the back frame is opened at a preset angle and then connected to the seat assembly.

[0008] In the detachable sofa frame structure of the present invention, the seat component is divided into a seat frame and two support frames. The two support frames are located on the left and right sides or the front and back sides of the seat frame, and are connected in a plug-in manner. , The disassembly is very convenient; and the backrest assembly is designed as an openable structure. In the packaging state, the back frame is in an aligned posture, so that the back frame is flatter, which is beneficial to reduce the packaging volume; and in the use state, the back frame The frame is opened according to a preset angle, stands on the upper end of the seat component and is connected and fixed with the seat component, and at the same time, it can meet the requirement of a certain angle of inclination of the backrest.

[0009] A sofa, including the detachable sofa frame structure, a flexible support pad is provided on the seat component and the backrest component, and a flexible cover is sheathed on the seat component and the backrest component. The beneficial effect of the invention

[0010] The present invention provides a detachable sofa frame structure and a sofa. Compared with the prior art, the detachable sofa frame structure makes the back frame flatter, which is beneficial to reduce the packaging volume and facilitate transportation. At the same time, the transportation cost is greatly reduced; in addition, the installation or disassembly method of the detachable sofa frame structure is relatively simple.

[0011] In addition, the sofa can be spliced into a two-person seat, a three-person seat, etc., which can meet the needs of multiple people sitting. Brief description of the drawings

[0012] FIG. 1 is a schematic diagram 1 of the three-dimensional structure when the seat frame and the support frame are not combined in the embodiment of the present invention; [0013] FIG. 2 is a second schematic diagram of the three-dimensional structure when the seat frame and the support frame are not combined in the embodiment of the present invention;

[0014] FIG. 3 is a schematic diagram of the three-dimensional structure of the seat frame and the support frame after the combination of the seat frame and the support frame in the embodiment of the present invention;

[0015] FIG. 4 is a schematic diagram of the three-dimensional structure of the connecting plate and the supporting frame in the embodiment of the present invention after being combined;

[0016] FIG. 5 is a schematic diagram of the three-dimensional structure of the connecting rod and the supporting frame in the embodiment of the present invention after being combined;

[0017] FIG. 6 is a schematic view of the three-dimensional structure of the backrest component and the seat component in the embodiment of the present invention; [0018] FIG. 7 is a schematic view of the three-dimensional structure of the backrest component of the embodiment of the present invention;

[0019] FIG. 8 is a second schematic diagram of the three-dimensional structure of the backrest assembly in the embodiment of the present invention;

[0020] FIG. 9 is a schematic view of the three-dimensional structure of the backrest assembly and the seat assembly in the embodiment of the present invention;

[0021] FIG. 10 is a schematic view of the three-dimensional structure of the armrest component, the backrest component and the seat component in the embodiment of the present invention;

[0022] FIG. 11 is a schematic diagram of a three-dimensional structure of a sofa in an embodiment of the present invention;

[0023] FIG. 12 is a schematic diagram of the three-dimensional structure of the detachable sofa frame structure in the embodiment of the present invention after being disassembled and before packing;

[0024] FIG. 13 is a schematic diagram of the three-dimensional structure when the seat assembly is combined into a two-seater sofa in an embodiment of the present invention. [0025] The reference signs are: seat frame 1; support frame 2; support surface 3; S-shaped spring 4; post 5; slot 6; bottom rod 7; vertical rod 8; bushing 9; backing plate 10; Hole 11; inner sleeve 12; outer sleeve 13; notch 14; elastic hook 15; edge 16; snap hole 17; first back frame 18; second back frame 19; connecting piece 20; latch 21; Pin hole 22; connecting plate 23; connecting rod 24; connecting pin 25; pin hole 26; armrest member 27; upper rod 28; lower rod 29; side rod 30; crosspiece 31; first connecting plate 32; second connecting plate 33; Flexible support pad 34; Connecting hole 35; Screw 36. Inventive embodiment of the present invention

[0026] In order to be able to understand the above objectives, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the application and the features in the embodiments can be combined with each other if there is no conflict.

[0027] The specific implementation of the present invention is as follows:

[0028] As shown in FIGS. 1-13, the present invention first provides a detachable sofa frame structure, which includes a seat component 37 and a backrest component 38. [0029] As shown in FIGS. 1-4, the seat assembly 37 includes a seat frame 1 and a support frame 2 located on the left and right sides of the seat frame 1. The seat frame 1 is a horizontally arranged rectangular frame. A seat support surface 3 is formed on the frame 1. The seat support surface 3 includes a plurality of S-shaped springs 4; the support frame 2 is a U-shaped frame arranged vertically, and the seat frame 1 is perpendicular to the support frame 2, and the seat The frame 1 is located at the upper end of the supporting frame 2.

[0030] As shown in FIGS. 1 and 2, the seat frame 1 and the support frame 2 are plug-in connection, which specifically refers to: the seat frame 1 and the support frame 2 are plugged and matched through a plug-in mechanism, and the The plug-in mechanism includes a plug-in column 5 and a slot 6, and the plug-in column 5 is fixed vertically downwardly and fixedly arranged at the four corners of the seat frame 1. The support frame 2 includes a bottom rod 7 and is connected to the bottom rod 7 The vertical rod 8 at both ends, and the slot 6 is provided with the top end of the vertical rod 8.

[0031] When assembling is required, insert the posts 5 at the four corners of the seat frame 1 into the slots 6 at the tops of the four vertical rods 8. The location is quick and the connection is more convenient.

[0032] As shown in FIGS. 1-3, in order to fill the gap between the pin 5 and the slot 6 and eliminate the sound caused by friction between metals, a bushing is also provided between the pin 5 and the slot 6. 9. The bushing 9 has a double-layer structure. The bushing 9 includes a backing plate 10. The center of the backing plate 10 is provided with a socket 11 through which the post 5 passes, and the socket 11 and the periphery of the socket 11 respectively downward An inner sleeve 12 and an outer sleeve 13 are extended, and a space is left between the inner and outer sleeves 13, and the inner sleeve 12 is used for mating and mating with the insert pin 5, so that the insert pin 5 is held, and the inserting is better. In order to be tight, eliminate the gap, and leave a gap 14 at the end of the inner sleeve 12 away from the backing plate 10, so that the lower end of the inner sleeve 12 is elastic, which is beneficial to accommodate the insert 5 and increase the friction after the insert 5 is inserted. , Will not pull out easily.

[0033] The outer sleeve 13 is used for snap-fitting with the vertical rod 8 to fix the entire bushing 9; specifically, a non-through slot is prefabricated on the side wall of the outer sleeve 13 to form an elastic hook 15, a pad The part of the plate 10 extending outward from the outer sleeve 13 in the radial direction and beyond the outer sleeve 13 forms a rim 16; the vertical rod 8 is a hollow rod, and a clamping hole 17 is provided on the outer wall of the upper end of the vertical rod 8, and the bushing 9 is inserted After being inserted into the slot 6, the elastic hook 15 is locked into the snap hole 17, and the edge 16 is over the opening of the slot 6 at the upper end of the vertical rod 8.

[0034] As shown in FIGS. 6-10, the backrest assembly 38 includes a first back frame 18 and a second back frame 19 that are selectively stretched, and one ends of the first and second back frames 18, 19 are hinged, The other ends of the first and second back frames 18 and 19 are selectively opened or closed.

[0035] 1. In the closed state, as shown in FIG. 8, the first and second back frames 18, 19 are close to each other, and the two are parallel and close close to each other, which is beneficial to reduce the packaging volume.

[0036] 2. In the opened state, as shown in Figures 6, 7, 9, and 10, the first and second back frames 18 and 19 are opened so that the angle between the two is less than 90 degrees.

[0037] The backrest assembly and the seat frame 1 are combined and connected to meet the requirements of supporting the human body. The following specifically describes the connection between the two:

[0038] As shown in FIGS. 6-8, the lower end of the first back frame 18 is fixedly provided with a connecting piece 20, and the connecting piece 20 is connected to the seat frame 1 by screws; the lower end of the second back frame 19 is fixedly arranged There is a pin 21, a pin hole 22 is correspondingly provided on the seat frame 1, and the pin 21 is inserted into the pin hole 22.

[0039] In this embodiment, the first back frame 18 is at the front and is used to support the back of the human body. Therefore, the first back frame 18 and the seat frame 1 are connected by screws to improve the safety of use; the second back frame 19 is at the back, It only needs to be inserted into the plug hole 22 through the plug 21.

[0040] As shown in FIG. 4, it also includes a reinforcement component for keeping the support frame 2 in a stable support state, and the reinforcement component is connected with two connecting plates 23, and the two connecting plates 23 are connected to the support frame 2. Are arranged vertically and are respectively located on the front and rear sides of the seat frame 1; the two ends of the two connecting plates 23 are respectively fixedly connected to the two support frames 2 by fasteners; specifically, in the vertical of the support frame 2 The rod 8 is provided with a connecting hole 35, and the connecting hole 35 is a threaded hole. After the connecting plate 23 and the vertical rod 8 are close together, the screw can be screwed into the connecting hole 35.

[0041] In addition, as shown in FIG. 5, the reinforcing component may also be a connecting rod 24, the two ends of the connecting rod 24 are fixedly provided with connecting pins 25, and the supporting frame 2 and the seat frame 1 are correspondingly provided with pins. In the hole 26, the connecting pins 25 at both ends of the connecting rod 24 are correspondingly inserted into the pin holes 26 of the supporting frame 2 and the seat frame 1.

[0042] As shown in FIG. 10, it also includes an armrest member 27 for supporting the arm. The armrest member 27 is located on the left and right sides of the seat assembly, and the armrest member 27 and the seat assembly are connected together.

[0043] The armrest member 27 is a rectangular frame, which includes horizontally arranged upper and lower rods 28, 29 and connected to the upper , The side rods 30 at both ends of the lower rods 28 and 29, a crosspiece 31 is provided in the middle of the armrest member 27, and the crosspiece 31 is fixedly connected between the two side rods 30; the seat frame 1 is fixedly provided with a first connecting plate 32, A connecting plate 32 is connected to the crosspiece 31 by screws; the support frame 2 is provided with a second connecting plate 33, and the second connecting plate 33 and the lower rod 29 are connected by screws.

[0044] When packaging is required, the seat frame 1, the support frame 2 and the backrest assembly are laid flat and stacked up and down as shown in FIG. 12, and then the backrest cushion and the cushion are stacked together and put into the box Packed inside, greatly reducing the packaging volume.

[0045] The present invention then provides a sofa, as shown in FIG. 11, including the detachable sofa frame structure, a flexible support pad 34 is provided on both the seat component and the backrest component, and the flexible support pad 34 is For the backrest cushion or seat cushion, the structure of the flexible support cushion 34 is generally an internal sponge, and the outside is wrapped by fabric or leather; it provides comfortable elastic support for the user, and the seat component and the back component are covered with a flexible cover to protect the sofa.

[0046] When a two-person or three-person seat is required, the two seat components can be spliced as shown in FIG. 13, which is simple and convenient. The connection between the two seat components is to connect the two seat frames 1 together by screws 36.

Claims

[Claim 1] A detachable sofa frame structure, characterized in that it comprises a seat component and a backrest component, the seat component includes a seat frame and support frames located on both sides of the seat frame, the seat frame and the support frame Are perpendicular to each other, and the seat frame and the support frame are plug-in connection; the backrest assembly includes a back frame that is selectively opened and closed, and when combined with the seat assembly, the back frame is opened at a preset angle and then connected to the seat assembly .

[Claim 2] The detachable sofa frame structure according to claim 1, characterized in that: the seat frame and the support frame are mated through a plug mechanism, and the plug mechanism includes a plug post and a plug The slot is provided on one of the seat frame or the support frame, and the slot is provided on the other of the seat frame or the support frame.

[Claim 3] The detachable sofa frame structure according to claim 2, characterized in that: the seat frame is a horizontally arranged rectangular frame, and the insert posts are fixedly arranged vertically downward on the four sides of the seat frame At the corners; the support frame is a U-shaped frame vertically arranged, the support frame includes a bottom rod and vertical rods connected to both ends of the bottom rod, and the slot is vertically arranged at the top of the vertical rod.

[Claim 4] The detachable sofa frame structure according to claim 3, characterized in that: a bushing is further provided between the insert post and the slot; the bushing has a double-layer structure, and the bushing includes Backing plate, the center of the backing plate is provided with a hole, and an inner sleeve and an outer sleeve extend downward from the hole and the periphery of the hole respectively. There is a gap between the inner and outer sleeves, and the outer sleeve is prefabricated on the side wall The notch is not penetrated to form an elastic hook, and the backing plate extends outward from the outer sleeve in the radial direction and the part that exceeds the outer sleeve forms an edge; the vertical rod is a hollow rod, and a clamping hole is provided on the outer wall of the upper end of the hollow rod. After the sleeve is inserted into the slot, the elastic hook is snapped into the snap hole, and the edge lies on the slot opening at the upper end of the vertical rod; a gap is left at the end of the inner sleeve away from the backing plate.

[Claim 5] The detachable sofa frame structure according to claim 1, characterized in that: it further comprises a reinforcing component for keeping the support frame in a stable support state, and the reinforcing component is a connecting rod, and the connecting rod Connecting pins are fixed at both ends of the support frame and the seat frame are correspondingly provided with pin holes, and the connecting pins at both ends of the connecting rod are correspondingly inserted into the pin holes of the support frame and the seat frame.

[Claim 6] The detachable sofa frame structure according to claim 1, characterized in that: it further comprises a reinforcement component for keeping the support frame in a stable support state, and the reinforcement component is a continuous The connecting plate, the connecting plate is arranged vertically, the two ends of the connecting plate are respectively fixedly connected with the two supporting frames by fasteners, and the connecting plate and the supporting frame are arranged vertically.

[Claim 7] The detachable sofa frame structure according to claim 6, characterized in that: the support frame is located on the left and right sides of the seat frame, and the seat frame is located at the upper end of the support frame; the connecting plate is two pieces, two pieces The connecting plates are respectively located on the front and rear sides of the seat frame.

[Claim 8] The detachable sofa frame structure according to claim 1, wherein the backrest assembly includes a first back frame and a second back frame, and one end of the first back frame and the second back frame are hinged. , The other ends of the first and second back frames are selectively opened or closed; in the closed state, the first and second back frames are close to each other; in the opened state, the gap between the first and second back frames is less than The included angle is 90 degrees.

[Claim 9] The detachable sofa frame structure according to claim 8, characterized in that: one of the first back frame or the second back frame is fixedly connected to the seat frame, and the first back frame or the second back frame is fixedly connected to the seat frame. The other of the back frame is movably connected with the seat frame.

[Claim 10] The detachable sofa frame structure according to claim 9, characterized in that: when connected with the seat assembly, the first back frame is in front and the second back frame is in the back; The lower end is fixedly provided with a connecting piece, and the connecting piece is connected with the seat frame by screws; the lower end of the second back frame is fixedly provided with a plug pin, and a plug hole is correspondingly provided on the seat frame, and the plug pin is inserted into the plug hole.

[Claim 11] The detachable sofa frame structure according to claim 1, further comprising armrest parts, the armrest parts are located on the left and right sides of the seat assembly, and the armrest part and the seat assembly connected together.

[Claim 12] The detachable sofa frame structure according to claim 11, characterized in that: the armrest member is a rectangular frame, which includes horizontally arranged upper and lower rods and side rods connected to both ends of the upper and lower rods A crosspiece is arranged in the middle of the armrest component, the crosspiece is fixedly connected between the two side rods, the crosspiece and the seat frame are fixedly connected by fasteners, and the lower rod or side rod and the support frame are fixedly connected by fasteners.

[Claim 13] The detachable sofa frame structure according to claim 12, characterized in that: a first connecting plate is fixed on one of the crosspiece and the seat frame, and the first connecting plate and the crosspiece and the seat The other of the frames is connected by screws; the lower rod and one of the supporting frames are provided with a second connection The second connecting plate is connected to the other of the lower rod or the support frame by screws.

[Claim 14] A sofa, characterized in that it comprises the detachable sofa frame structure according to any one of claims 1-13, and flexible support cushions are provided on both the seat component and the backrest component, and the seat component There is a flexible cover over the backrest component.