Sofa supporting frame and sofa

Abstract

The invention provides a sofa supporting frame and a sofa. The sofa supporting frame comprises two main supporting pipes arranged in parallel, a cross beam connected with the two main supporting pipes and four vertical supporting pipes. The vertical supporting pipes are arranged at the front and rear ends of the main supporting pipe. The cross beam and the two main supporting pipes jointly form a horizontal frame. Through the combination of the two main supporting pipes and the four vertical supporting pipes which are arranged in parallel, the stability is good. Meanwhile, the cross beam and the two main supporting pipes form a horizontal frame, and the frame structure is convenient to assemble, light, thin and low in manufacturing cost.

Description

Technical Field

[0001] The present application relates to the field of seating, and in particular to a sofa support frame and a sofa. Background Art

[0002] As people's living standards continue to improve, many different types of seats have appeared on the market. Seats include chairs, sofas, stools, benches and other furniture or devices that provide comfortable sitting support. The support frame of the existing sofa is a fixed structure, which cannot be disassembled after fixed installation, making it inconvenient to transport and reassemble. At present, the support frames of multifunctional sofas on the market are mostly floor-standing wooden frame structures, which have poor stability and are prone to deformation during use. At the same time, the production process of the wooden frame structure is complicated and the cost of wood is high.

[0003] Therefore, it is necessary to provide an improved sofa support frame and sofa to solve the above problems. Summary of the invention

[0004] The present application provides a sofa support frame and a sofa with good stability and low manufacturing cost.

[0005] The present application provides a sofa support frame, comprising two main support tubes arranged in parallel, a crossbeam connecting the two main support tubes and four vertical support tubes, wherein the vertical support tubes are arranged at the front and rear ends of the main support tubes, and the crossbeam and the two main support tubes jointly form a horizontal frame.

[0006] Furthermore, the two main support tubes and the four vertical support tubes are all square hollow structures; the horizontal frame is H-shaped and is arranged in the middle and lower parts of the vertical support tubes.

[0007] Furthermore, a first iron frame fixing hole and a second iron frame fixing hole are provided at the rear of the main support tube; a third iron frame fixing hole is provided on the vertical support tube, and the third iron frame fixing hole is located above the main support tube and is arranged adjacent to the main support tube.

[0008] Furthermore, it also includes an iron frame fixing pipe, which is welded to the front part of the main support pipe and is provided with an iron frame mounting hole.

[0009] Furthermore, the iron frame fixing tube includes a front fixing tube and a rear fixing tube which are arranged at a certain distance, the front fixing tube is arranged close to the vertical support tube at the front end, and the rear fixing tube is arranged at the front part of the crossbeam.

[0010] Furthermore, the front fixing tube and the rear fixing tube are both square hollow structures; an iron frame mounting hole is provided on the front fixing tube; and two iron frame mounting holes are provided on the rear fixing tube.

[0011] Furthermore, it also includes an iron frame fixing part, which is a sheet metal part, and the iron frame fixing part is welded to the front part of the main support tube, and the iron frame fixing part is provided with a plurality of iron frame mounting holes.

[0012] Furthermore, a sofa leg mounting portion is provided on the vertical support tube, and a sofa leg is mounted on the sofa leg mounting portion; the sofa leg mounting portion is located below the main support tube.

[0013] Furthermore, a handrail mounting hole is provided on the upper portion of the vertical support tube.

[0014] Furthermore, the vertical support tubes are each provided with a mortise and tenon, and both ends of the main support tube are each provided with a tenon, and the tenon is inserted into the mortise and tenon and welded to the main support tube.

[0015] Furthermore, the four vertical support tubes include two front tubes located at the front end of the main support tube and two rear tubes located at the rear end of the main support tube; the height of the rear tube is greater than the height of the front tube.

[0016] Furthermore, the front tube is perpendicular to the main support tube, the rear tube is arranged obliquely to the main support tube, and the tops of the two rear tubes are provided with chamfered portions.

[0017] Furthermore, the two rear tubes are respectively provided with rear sealing plate connecting pieces, and the rear sealing plate connecting pieces include a fixing portion and a connecting portion which are perpendicular to each other, and the fixing portion is welded to the inner side of the rear tube.

[0018] The present application also provides a sofa, comprising a functional iron frame, an armrest assembly, a backrest assembly and the above-mentioned sofa support frame, wherein the armrest assembly and the functional iron frame are both fixed to the sofa support frame, the armrest assembly is arranged on the outside of the two main support tubes, and the functional iron frame is arranged between the two main support tubes.

[0019] Furthermore, the functional iron frame includes a front driving tube and a rear driving tube, the front driving tube is close to the front end of the main support tube, the rear driving tube is close to the rear end of the main support tube, and the crossbeam is located between the front driving tube and the rear driving tube; a seat frame is formed on the functional iron frame.

[0020] Furthermore, the armrest assembly includes an armrest main body portion fixed together and an armrest fixing portion located inside the armrest main body portion, and the armrest fixing portion is plate-shaped and fixed to the vertical support tube.

[0021] The present application has good stability through the combination of two main support tubes and four vertical support tubes arranged in parallel. At the same time, the crossbeam and the two main support tubes form a horizontal frame. The horizontal frame is easy to assemble, has a light and thin structure and a low manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the sofa support frame of the present application.

[0023] Figure 2 yes Figure 1 A side view of the sofa support frame is shown.

[0024] Figure 3 yes Figure 1 A schematic diagram of the main support tube of the sofa support frame shown.

[0025] Figure 4 yes Figure 1 Schematic diagram of the crossbeam of the sofa support frame shown.

[0026] Figure 5 yes Figure 1 Schematic diagram of the front tube of the sofa support frame shown.

[0027] Figure 6 yes Figure 5 A schematic diagram of another embodiment of the front tube of the sofa support frame is shown.

[0028] Figure 7 yes Figure 1 Schematic diagram of the rear tube of the sofa support frame shown.

[0029] Figure 8 It is a schematic diagram of the sofa legs of the sofa of the present application.

[0030] Fig. 9 This is a schematic diagram of a sofa without an armrest assembly.

[0031] Fig.10 yes Fig. 9 The sofa is shown in a side view without the armrest assembly.

[0032] Fig.11 This is a schematic diagram of a sofa having only one armrest assembly.

[0033] Fig.12 yes Fig.11 The sofa shown is provided with only one armrest assembly, which is a schematic diagram from another angle, wherein only a part of the armrest assembly is shown.

[0034] Description of Figure Numbers:

[0035] 100, functional iron frame; 101, front drive pipe; 102, rear drive pipe; 103, seat frame; 200, armrest assembly; 201, armrest main body; 202, armrest fixing part; 300, backrest assembly; 400, rear cover plate; 10, main support pipe; 11, first iron frame fixing hole; 12, second iron frame fixing hole; 13, tenon; 131, groove; 14, first crossbeam fixing hole; 15, second crossbeam fixing hole; 20, crossbeam; 21, main body; 22, support pipe fixing part; 221, first support pipe connecting hole; 222, second support pipe connecting hole; 23, reinforcing rib; 30 , vertical support tube; 301, third iron frame fixing hole; 302, sofa leg mounting part; 3021, sofa leg mounting hole; 303, armrest mounting hole; 304, mortise and tenon; 31, front tube; 32, rear tube; 321, chamfered part; 40, iron frame fixing tube; 401, iron frame mounting hole; 41, front fixing tube; 42, rear fixing tube; 50, sofa leg; 51, sofa leg connecting part; 511, sofa leg connecting hole; 52, sofa leg supporting part; 521, supporting cavity; 522, supporting rib; 60, rear sealing plate connecting piece; 61, fixing part; 62, connecting part; 621, rear sealing plate connecting hole. DETAILED DESCRIPTION

[0036] Here, the technical solutions in the embodiments (or "implementations") of the present application will be described clearly and completely in conjunction with the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0037] If there are terms involving directional indications or positional relationships in the embodiments of the present application (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings); if the specific posture changes, the directional indication or positional relationship will also change accordingly. In addition, the terms "first", "second", etc. involved in the embodiments of the present application are only used for the purpose of convenience of description and cannot be understood as indicating or implying relative importance.

[0038] See also Figure 1 to Figure 2 As shown, the sofa support frame includes two main support tubes 10, a crossbeam 20, four vertical support tubes 30 and an iron frame fixing tube 40. The two main support tubes 10 are arranged in parallel, and the crossbeam 20 is arranged between the two main support tubes 10 and connected to the two main support tubes 10. The vertical support tubes 30 are arranged at the front and rear ends of the main support tubes 10. The iron frame fixing tube 40 is welded to the front of the main support tubes 10. The crossbeam 20 and the two main support tubes 10 together form a horizontal frame. The horizontal frame is H-shaped and is arranged at the middle and lower parts of the vertical support tubes 30.

[0039] See also Figures 3 to 8 As shown, the two main support tubes 10 are square hollow structures. The rear of the main support tube 10 is provided with a first iron frame fixing hole 11 and a second iron frame fixing hole 12. The upper and lower sides of both ends of the main support tube 10 are provided with oblique grooves 131, and the part of the main support tube 10 located outside the groove 131 forms a tenon 13. The middle of the main support tube 10 is provided with a first crossbeam fixing hole 14 and a second crossbeam fixing hole 15.

[0040] The cross beam 20 includes a main body 21 and support tube fixing parts 22 provided at both ends of the main body 21. The main body 21 is a circular hollow structure, that is, a hollow circular tube. The support tube fixing part 22 is provided with a first support tube connection hole 221 and a second support tube connection hole 222. The first support tube connection hole 221 is aligned with the first cross beam fixing hole 14, and the second support tube connection hole 222 is aligned with the second cross beam fixing hole 15. The fixing parts are respectively assembled to the first support tube connection hole 221 and the first cross beam fixing hole 14 and the second support tube connection hole 222 and the second cross beam fixing hole 15 to fix the cross beam 20 and the main support tube 10.

[0041] The support tube fixing portion 22 is provided with a reinforcing rib 23 , which is triangular in shape and located between the first support tube connecting hole 221 and the second support tube connecting hole 222 to enhance the strength of the support tube fixing portion 22 .

[0042] According to the embodiment of the present application, the main body 21 may also be a hollow square tube or a hollow tube of other geometric shapes. The fixing member may be a bolt, a rivet, or the like.

[0043] The four vertical support tubes 30 are all square hollow structures. The vertical support tubes 30 are provided with a third iron frame fixing hole 301, a sofa leg mounting portion 302, an armrest mounting hole 303 and a mortise and tenon groove 304. The third iron frame fixing hole 301 is located above the main support tube 10 and is arranged adjacent to the main support tube 10. The sofa leg mounting portion 302 is located below the main support tube 10. The sofa mounting portion 302 is provided with a sofa leg mounting hole 3021. The armrest mounting hole 303 is arranged at the upper part of the vertical support tube 30. The tenon 13 of the main support tube 10 is inserted into the mortise and tenon groove 304 and the vertical support tube 30 is welded to the main support tube 10.

[0044] The four vertical support tubes 30 include two front tubes 31 located at the front end of the main support tube 10 and two rear tubes 32 located at the rear end of the main support tube 10. The height of the rear tube 32 is greater than the height of the front tube 31. The front tube 31 is perpendicular to the main support tube 10, and the rear tube 32 is inclined to the main support tube 10. The tops of the two rear tubes 32 are provided with chamfered portions 321.

[0045] According to the embodiment of the present application, the front tube 31 located on one side of the main support tube 10 is provided with a third iron frame fixing hole 301, a sofa leg mounting portion 302, a sofa leg mounting hole 3021 and a tenon groove 304. The front tube 31 located on the other side of the main support tube 10 is provided with a third iron frame fixing hole 301, a sofa leg mounting portion 302, a sofa leg mounting hole 3021, an armrest mounting hole 303 and a tenon groove 304. The height of the front tube 31 located on the outside of the main support tube 10 is greater than the height of the front tube 31 located on the inside of the main support tube 10.

[0046] The iron frame fixing pipe 40 includes a front fixing pipe 41 and a rear fixing pipe 42 which are arranged at a certain distance. The front fixing pipe 41 is arranged close to the front pipe 31, and the rear fixing pipe 42 is arranged at the front of the cross beam 20. The front fixing pipe 41 and the rear fixing pipe 42 are both square hollow structures. An iron frame mounting hole 401 is provided on the front fixing pipe 41. Two iron frame mounting holes 401 are provided on the rear fixing pipe 42. The iron frame mounting hole 401 located on the front fixing pipe 41 is a strip hole. The two iron frame mounting holes 401 located on the rear fixing pipe 42 are both round holes.

[0047] According to the embodiment of the present application, the iron frame mounting holes 401 on the front fixing tube 41 and the rear fixing tube 42 can be both bar-shaped holes or both round holes. In addition, one or more iron frame mounting holes 401 can be provided on the front fixing tube 41 and the rear fixing tube 42.

[0048] In some embodiments, an iron frame fixing piece may be provided instead of the iron frame fixing pipe 40. The iron frame fixing piece is welded to the front of the main support pipe 10. The iron frame fixing piece is a single-layer sheet metal piece. A plurality of iron frame mounting holes are provided on the iron frame fixing piece.

[0049] According to the embodiment of the present application, a reinforcing rib is provided on one side of the iron frame fixing piece close to the cross beam 20. The reinforcing rib is triangular in shape.

[0050] The bottom of the sofa support frame is provided with a sofa leg 50. The sofa leg 50 includes a sofa leg connecting portion 51 and a sofa leg supporting portion 52. The sofa leg connecting portion 51 is provided with a sofa leg connecting hole 511. The sofa leg connecting hole 511 is aligned with the sofa leg mounting hole 3021, and a fixing member is assembled to the sofa leg connecting hole 511 and the sofa leg mounting hole 3021 to connect the vertical support tube 30 and the sofa leg 50.

[0051] The sofa leg connection part 51 is fitted with the sofa leg installation part 302. The sofa leg support part 52 is located below the sofa leg installation part 302 to support the sofa leg installation part 302. The sofa leg connection part 51 is a plate-like structure, and a support cavity 521 is formed in the sofa leg support part 52. A plurality of support ribs 522 are arranged in the support cavity 521.

[0052] The two rear pipes 32 are respectively provided with rear sealing plate connecting members 60. The two rear sealing plate connecting members 60 are arranged opposite to each other. The rear sealing plate connecting member 60 includes a fixing portion 61 and a connecting portion 62 which are perpendicular to each other. The fixing portion 61 is welded to the inner side of the rear pipe 32. The connecting portion 62 is provided with two rear sealing plate connecting holes 621.

[0053] See also Figures 9 to 12 As shown, the present application also provides a sofa, including a functional iron frame 100, an armrest assembly 200, a backrest assembly 300 and the above-mentioned sofa support frame. The functional iron frame 100 is arranged between two main support tubes 10. The armrest assembly 200 and the functional iron frame 100 are both fixed to the sofa support frame. The armrest assembly 200 is arranged on the outside of the two main support tubes 10.

[0054] The functional iron frame 100 includes a front driving pipe 101 and a rear driving pipe 102. The front driving pipe 101 is close to the front end of the main support pipe 10, and the rear driving pipe 102 is close to the rear end of the main support pipe 10. The cross beam 20 is located between the front driving pipe 101 and the rear driving pipe 102. A seat frame 103 is formed on the functional iron frame 100, and the seat frame 103 is located above the horizontal frame. A soft cushion is provided on the seat frame 103.

[0055] According to the embodiment of the present application, when the sofa is a single-seat sofa, armrest assemblies 200 are provided on both sides of the sofa support frame. When the sofa is an outer sofa seat of a combination sofa, an armrest assembly 200 is provided on the outer side of the sofa support frame, and the armrest assembly 200 is located on the outer side of the main support tube 10. The third iron frame fixing hole 301 located on the inner front tube 31 of the main support tube 10 is a sofa combination connection hole for fixing adjacent sofas.

[0056] In some embodiments, the sofa may not be provided with the armrest assembly 200 .

[0057] A plurality of functional iron frame mounting holes are provided on the functional iron frame 100. The functional iron frame mounting holes are aligned with the iron frame mounting holes 401, the first iron frame fixing holes 11 and the second iron frame fixing holes 12 respectively to fix the functional iron frame 100 and the sofa support frame.

[0058] The armrest assembly 200 includes an armrest body 201 fixed together and an armrest fixing portion 202 located inside the armrest body 201. The armrest fixing portion 202 is plate-shaped and fixed to the vertical support tube 30. The armrest assembly 200 is fixed to the front tube 31 and the rear tube 32 through the armrest mounting hole 303.

[0059] The backrest assembly 300 is tilted, and there is an angle between the backrest assembly 300 and the front tube 31. The rear tube 32 is consistent with the tilt angle of the backrest assembly 300. The backrest assembly 300 includes a rear sealing plate 400, which is fixed to the rear of the main body of the backrest assembly 300. The rear sealing plate 400 is fixed to the sofa support frame through a connecting portion 62.

[0060] The present application provides a sofa support frame with good stability by combining two parallel main support tubes 10 and four vertical support tubes 30. At the same time, the crossbeam 20 and the two main support tubes 10 form a horizontal frame, which is easy to assemble, has a light and thin structure, and has a low manufacturing cost.

[0061] It should be noted that the technical solutions or technical features described in the above embodiments can be combined or supplemented with each other without causing conflicts. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the drawings; all modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this application should be included in the scope of protection of this application.

Claims

1. A sofa support frame, characterized in that: It includes two main support tubes arranged in parallel, a crossbeam connecting the two main support tubes and four vertical support tubes. The vertical support tubes are arranged at the front and rear ends of the main support tubes. The crossbeam and the two main support tubes jointly form a horizontal frame.

2. The sofa support frame according to claim 1, characterized in that: The two main support tubes and the four vertical support tubes are all square hollow structures; the horizontal frame is H-shaped and is arranged in the middle and lower parts of the vertical support tubes.

3. The sofa support frame according to claim 1, characterized in that: The rear portion of the main support tube is provided with a first iron frame fixing hole and a second iron frame fixing hole; the vertical support tube is provided with a third iron frame fixing hole, and the third iron frame fixing hole is located above the main support tube and is arranged adjacent to the main support tube.

4. The sofa support frame according to claim 1, characterized in that: It also includes an iron frame fixing pipe, which is welded to the front part of the main supporting pipe and is provided with an iron frame mounting hole.

5. The sofa support frame according to claim 4, characterized in that: The iron frame fixing pipe comprises a front fixing pipe and a rear fixing pipe which are arranged at a certain distance, the front fixing pipe is arranged close to the vertical supporting pipe at the front end, and the rear fixing pipe is arranged at the front part of the crossbeam.

6. The sofa support frame according to claim 5, characterized in that: The front fixing tube and the rear fixing tube are both square hollow structures; an iron frame mounting hole is provided on the front fixing tube; and two iron frame mounting holes are provided on the rear fixing tube.

7. The sofa support frame according to claim 1, characterized in that: It also includes an iron frame fixing part, which is a sheet metal part. The iron frame fixing part is welded to the front part of the main support pipe, and a plurality of iron frame mounting holes are arranged on the iron frame fixing part.

8. The sofa support frame according to claim 1, characterized in that: The vertical support tube is provided with a sofa leg installation part, and the sofa leg installation part is installed with a sofa leg; the sofa leg installation part is located below the main support tube.

9. The sofa support frame according to claim 1, characterized in that: The upper part of the vertical support tube is provided with a handrail mounting hole.

10. The sofa support frame according to claim 1, characterized in that: The vertical support tubes are each provided with a mortise and tenon, and both ends of the main support tube are each provided with a tenon, and the tenon is inserted into the mortise and tenon and welded to the main support tube.

11. The sofa support frame according to claim 1, characterized in that: The four vertical support tubes include two front tubes located at the front end of the main support tube and two rear tubes located at the rear end of the main support tube; the height of the rear tube is greater than the height of the front tube.

12. The sofa support frame according to claim 11, characterized in that: The front tube is perpendicular to the main support tube, the rear tube is arranged obliquely with respect to the main support tube, and the tops of the two rear tubes are provided with chamfered portions.

13. The sofa support frame according to claim 11, characterized in that: The two rear tubes are respectively provided with rear sealing plate connecting pieces, and the rear sealing plate connecting pieces include a fixing portion and a connecting portion which are perpendicular to each other, and the fixing portion is welded to the inner side of the rear tube.

14. A sofa, characterized in that: It comprises a functional iron frame, an armrest assembly, a backrest assembly and a sofa support frame as described in any one of claims 1 to 13, wherein the armrest assembly and the functional iron frame are both fixed to the sofa support frame, the armrest assembly is arranged on the outside of the two main support tubes, and the functional iron frame is arranged between the two main support tubes.

15. The sofa according to claim 14, characterized in that: The functional iron frame includes a front driving tube and a rear driving tube, wherein the front driving tube is close to the front end of the main supporting tube, and the rear driving tube is close to the rear end of the main supporting tube, and the cross beam is located between the front driving tube and the rear driving tube; a seat frame is formed on the functional iron frame.

16. The sofa according to claim 14, characterized in that: The armrest assembly comprises an armrest main body portion fixed together and an armrest fixing portion located inside the armrest main body portion, wherein the armrest fixing portion is plate-shaped and fixed to the vertical support tube.

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