Novel sofa backrest structure

Abstract

The utility model discloses a novel sofa backrest structure which comprises a backrest body, an overturning headrest arranged at the top of the backrest body and a headrest overturning component arranged between the backrest body and the overturning headrest, and the backrest body and the overturning headrest are both manufactured by adopting a blow molding / extrusion molding process. The fixed end of the headrest overturning component is connected with the backrest body, and the overturning end of the headrest overturning component is connected with the overturning headrest. According to the utility model, the production difficulty is reduced, the structural design of the backrest body and the turnover headrest is widened, the design style is more diversified compared with wood, the backrest can be quickly manufactured through a mold, the production efficiency is improved, a complicated splicing process is not needed, and glue is not needed.

Description

Technical Field

[0001] The utility model relates to the technical field of sofas, in particular to a novel sofa backrest structure. Background Art

[0002] Sofa is an important part of people's daily life. It is not only an indoor decoration, but also a kind of furniture. Because the sofa is soft and elastic, people often feel very comfortable sitting on it, so many families have sofas. With the development of science and technology and the improvement of people's living standards, furniture companies have invested a lot of manpower and funds to develop sofas that can meet people's growing demand for furniture.

[0003] At present, the existing sofa backrest and the headrest on the backrest are usually made of wood splicing, which leads to the following defects:

[0004] 1. Material limitations: As a natural material, the strength and stability of wood are greatly affected by factors such as environment, humidity and temperature, and it is prone to deformation, cracking and other problems;

[0005] 2. Complex splicing process: Wood splicing requires professional craftsmanship and skills to ensure that the seat frame structure is stable and not easy to loosen after splicing. Glue is needed for bonding during the splicing process, which not only increases the production cost, but also may cause the backrest or headrest to loosen or crack due to aging of the glue after long-term use;

[0006] 3. Limited design diversity: Due to the physical properties and processing limitations of wood, its structural design is often traditional and conservative, which makes it difficult to meet the needs of modern home design for diversity and personalization;

[0007] 4. Low production efficiency: Wood processing requires multiple steps, such as cutting, grinding, splicing, etc. These steps are not only time-consuming and labor-intensive, but also difficult to automate, resulting in low production efficiency; and the use of glue for bonding also increases the production cycle, because it is necessary to wait for the glue to dry and solidify before proceeding to the next step. Utility Model Content

[0008] In order to overcome the problems of material limitation, complex splicing process, limited design diversity and low production efficiency of sofa backrests in the prior art, the utility model provides a novel sofa backrest structure.

[0009] The technical solution of the utility model is as follows:

[0010] A novel sofa backrest structure comprises a backrest body, a flip headrest arranged on the top of the backrest body, and a headrest flip member arranged between the backrest body and the flip headrest. The backrest body and the flip headrest are both made by blow molding / extrusion molding process, the fixed end of the headrest flip member is connected to the backrest body, and the flip end of the headrest flip member is connected to the flip headrest.

[0011] As a preferred solution of the utility model, the backrest body includes a top plate, a back plate and two side plates respectively arranged on left and right sides between the top plate and the back plate, and a backrest crossbeam is installed between the bottoms of the two side plates.

[0012] As a preferred solution of the present invention, the backrest crossbeam is made of metal.

[0013] As a preferred solution of the utility model, first fixing holes are provided at both left and right ends of the backrest crossbeam, and second fixing holes matching with the first fixing holes are provided at the bottoms of the two side panels.

[0014] As a preferred solution of the utility model, fixing nuts are pre-embedded at positions of the two side plates corresponding to the second fixing holes.

[0015] As a preferred solution of the utility model, two disassembly and assembly plates are installed between the backrest crossbeam and the back plate and are arranged opposite to each other on the left and right.

[0016] As a preferred solution of the present invention, the disassembly and assembly mounting plate is made of metal.

[0017] As a preferred solution of the utility model, the front end of the disassembly and assembly mounting plate is provided with a first fixing portion for fixing to the backrest cross beam, and the rear end of the disassembly and assembly mounting plate is provided with a second fixing portion for fixing to the back plate.

[0018] As a preferred solution of the utility model, a third fixing hole is provided on the first fixing part, a fourth fixing hole matching with the third fixing hole is provided on the backrest crossbeam at a position corresponding to the disassembly and assembly mounting plate, a fifth fixing hole is provided on the second fixing part, and a sixth fixing hole matching with the fifth fixing hole is provided on the back plate at a position corresponding to the disassembly and assembly mounting plate.

[0019] As a preferred solution of the present utility model, the fifth fixing hole is provided with an internal thread.

[0020] As a preferred solution of the utility model, a disassembly and assembly connector for cooperating with a disassembly and assembly key on the sofa base is provided on one side of the front end of the disassembly and assembly mounting plate.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] 1. The backrest body and flip headrest are made of blow molding / extrusion technology, which reduces the difficulty of production and expands the structural design of the backrest body and flip headrest. The design style is more diverse than wood, and can be quickly made through molds, which increases production efficiency. There is no need for complicated splicing process or glue, which avoids loosening or cracking caused by aging of glue;

[0023] 2. The backrest body and flip headrest made by blow molding / extrusion process are no longer restricted by natural materials like wood. Plastic materials have better stability and deformation resistance, and are not easily affected by the environment, humidity and temperature, thus avoiding problems such as cracking and deformation;

[0024] 3. By setting a headrest flipping component, the flipping angle of the flipping headrest can be adjusted according to the user's usage habits, thereby improving the comfort and flexibility of use;

[0025] 4. By providing a disassembly and assembly mounting plate, the backrest body can be easily inserted into or removed from the sofa base, and plays a role in supporting the backrest crossbeam. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 This is a structural schematic diagram of a novel sofa backrest structure in one embodiment of the utility model;

[0028] Figure 2 This is a schematic structural diagram of a backrest body in one embodiment of the utility model;

[0029] Figure 3 It is a structural schematic diagram of the backrest body from another perspective in one embodiment of the utility model;

[0030] Figure 4 This is a structural schematic diagram of a backrest crossbeam in one embodiment of the utility model;

[0031] Figure 5 This is a structural schematic diagram of the disassembly and assembly of the mounting plate in one embodiment of the utility model;

[0032] Figure 6 It is a structural schematic diagram of another perspective of the disassembly and assembly of the mounting plate in one embodiment of the utility model;

[0033] Figure 7 It is an exploded view of disassembling and assembling the mounting plate in one embodiment of the utility model.

[0034] In the figure,

[0035] 1. Backrest body; 101. Top plate; 102. Back plate; 1021. Sixth fixing hole; 103. Side plate; 1031. Second fixing hole; 2. Flip headrest; 3. Headrest flip member; 4. Backrest crossbeam; 401. First fixing hole; 402. Fourth fixing hole; 5. Disassembly and assembly mounting plate; 501. First fixing part; 5011. Third fixing hole; 502. Second fixing part; 5021. Fifth fixing hole; 503. Disassembly and assembly connector; 5031. Seventh fixing hole; 504. Eighth fixing hole. DETAILED DESCRIPTION

[0036] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. It is also stated that the embodiments described below are only used to explain the present invention and are not used to limit the present invention.

[0037] It should be noted that the terms "install", "set", "connect", "fix" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. The indicated orientation or position relationship is based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the application product is usually placed when in use, or the orientation or position relationship commonly understood by those skilled in the art, or the orientation or position relationship in which the application product is usually placed when in use. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0038] See also Figure 1The present embodiment provides a novel sofa backrest structure, comprising a backrest body 1, a flip headrest 2 arranged on the top of the backrest body 1, and a headrest flip member 3 arranged between the backrest body 1 and the flip headrest 2. The backrest body 1 and the flip headrest 2 are both made by blow molding / extrusion molding process, the fixed end of the headrest flip member 3 is connected to the backrest body 1, and the flip end of the headrest flip member 3 is connected to the flip headrest 2.

[0039] The new sofa backrest structure provided by the utility model is that the backrest body 1 and the flip headrest 2 are both made by blow molding / extrusion technology, which reduces the production difficulty and expands the structural design of the backrest body 1 and the flip headrest 2. The design style is more diverse than that of wood, and can be quickly made by molds, which increases production efficiency, and does not require a complicated splicing process or the use of glue, thereby avoiding the problem of loosening or cracking caused by aging of the glue; at the same time, the backrest body 1 and the flip headrest 2 made by the blow molding / extrusion technology are no longer restricted by natural materials such as wood, and the plastic material has better stability and deformation resistance, and is not easily affected by the environment, humidity and temperature, thereby avoiding problems such as cracking and deformation; in addition, by providing the headrest flip component 3, the flip headrest 2 can adjust the flip angle of the flip headrest 2 according to the user's usage habits, thereby improving the comfort and flexibility of use.

[0040] See also Figures 1 to 3 In one embodiment, the backrest body 1 includes a top plate 101, a back plate 102, and two side plates 103 respectively arranged on the left and right sides between the top plate 101 and the back plate 102. A backrest crossbeam 4 is installed between the bottoms of the two side plates 103, and the backrest crossbeam 4 plays a role in reinforcing the backrest body 1. Among them, the backrest crossbeam 4 is made of metal. The metal backrest crossbeam 4 has higher strength, durability, compression resistance and stability, and can withstand greater force, thereby further enhancing the stability and durability of the backrest. At the same time, the backrest crossbeam 4 can also serve as a support point to withstand the weight and pressure from other parts of the sofa.

[0041] See also Figures 2 to 4 In one embodiment, first fixing holes 401 are provided at both ends of the backrest cross beam 4, and second fixing holes 1031 matching the first fixing holes 401 are provided at the bottom of the two side panels 103. The first fixing holes 401 on the backrest cross beam 4 and the second fixing holes 1031 on the two side panels 103 are matched with screws, so that the two ends of the backrest cross beam 4 can be quickly fixed to the bottom of the two side panels 103.

[0042] In one embodiment, fixing nuts are pre-buried at positions corresponding to the second fixing holes 1031 on the two side panels 103, and the screws are connected to the fixing nuts inside the side panels 103 after passing through the first fixing holes 401 and the second fixing holes, thereby fixing the backrest crossbeam 4. The setting of the fixing nuts can provide a more stable connection point for the backrest crossbeam 4, especially in applications that need to withstand greater forces or vibrations, the threaded cooperation between the fixing nuts and the screws can provide stronger pulling and shearing forces.

[0043] See also Figure 1 In one embodiment, two disassembly and assembly plates 5 are installed between the backrest crossbeam 4 and the back plate 102, which are arranged opposite to each other on the left and right. The disassembly and assembly plates 5 enable the backrest body 1 to be easily inserted into or removed from the sofa base, which not only facilitates the assembly and disassembly of the sofa, but also facilitates future maintenance and cleaning. When the backrest needs to be cleaned or replaced, the user can directly remove the backrest body 1 without disassembling the entire sofa. At the same time, the disassembly and assembly plates 5 not only provide an installation interface, but also play a role in supporting the backrest crossbeam 4. Preferably, the disassembly and assembly plates 5 are made of metal. The disassembly and assembly plates 5 made of metal have high strength and stability, and can effectively support the backrest crossbeam 4 to prevent it from deforming or sinking, thereby ensuring the stability and safety of the backrest body 1.

[0044] See also Figures 2 to 7 In one embodiment, the front end of the disassembly and assembly mounting plate 5 is provided with a first fixing portion 501 for fixing to the backrest cross beam 4, and the rear end of the disassembly and assembly mounting plate 5 is provided with a second fixing portion 502 for fixing to the back plate 102. Specifically, a third fixing hole 5011 is provided on the first fixing portion 501, and a fourth fixing hole 402 matching the third fixing hole 5011 is provided on the backrest beam 4 at a position corresponding to the disassembly and installation plate 5. The third fixing hole 5011 on the first fixing portion 501 and the fourth fixing hole 402 on the backrest beam 4 cooperate with screws to quickly fix the front end of the disassembly and installation plate 5 to the backrest beam 4; a fifth fixing hole 5021 is provided on the second fixing portion 502, and a sixth fixing hole 1021 matching the fifth fixing hole 5021 is provided on the back plate 102 at a position corresponding to the disassembly and installation plate 5. The fifth fixing hole 5021 is provided with an internal thread. After the screw passes through the sixth fixing hole 1021, it is threadedly connected with the fifth fixing hole 5021, so that the rear end of the disassembly and installation plate 5 can be quickly fixed to the back plate 102.

[0045] In addition, a disassembly connector 503 for cooperating with a disassembly key on the sofa base is provided at one side of the front end of the disassembly mounting plate 5. When the backrest body 1 needs to be installed on the sofa base, the user only needs to align the disassembly connector 503 on the disassembly mounting plate 5 with the disassembly key on the sofa base, and then plug the two together. The installation process is simple and quick, and does not require complicated tools and professional skills.

[0046] Specifically, seventh fixing holes 5031 are provided at both upper and lower ends of the disassembly and assembly connector 503, and an eighth fixing hole 504 matching with the seventh fixing hole 5031 is provided at the front end of the disassembly and assembly mounting plate 5. The eighth fixing hole 504 is provided with an internal thread. After the screw passes through the seventh fixing hole 5031, it is threadedly connected with the eighth fixing hole 504, so that the disassembly and assembly connector 503 can be quickly fixed to the front end side of the disassembly and assembly mounting plate 5.

[0047] It should be noted that since the headrest flip member 3 is a technology well known to those skilled in the art, the present invention does not describe its specific structure and working principle in detail. It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the present invention.

[0048] The above is an exemplary description of the utility model patent in conjunction with the accompanying drawings. It is obvious that the implementation of the utility model patent is not limited to the above-mentioned method. As long as various improvements are made by adopting the method concept and technical solution of the utility model patent, or the concept and technical solution of the utility model patent are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A new sofa backrest structure, characterized in that: The utility model comprises a backrest body, a flip headrest arranged on the top of the backrest body and a headrest flip member arranged between the backrest body and the flip headrest. The backrest body and the flip headrest are both made by blow molding / extrusion molding process. The fixed end of the headrest flip member is connected to the backrest body, and the flip end of the headrest flip member is connected to the flip headrest.

2. The new sofa backrest structure according to claim 1 is characterized in that: The backrest body comprises a top plate, a back plate and two side plates respectively arranged on left and right sides between the top plate and the back plate, and a backrest crossbeam is installed between the bottoms of the two side plates.

3. The new sofa backrest structure according to claim 2 is characterized in that: The backrest crossbeam is made of metal.

4. The new sofa backrest structure according to claim 2 is characterized in that: The left and right ends of the backrest crossbeam are both provided with first fixing holes, and the bottoms of the two side panels are provided with second fixing holes that match the first fixing holes.

5. The new sofa backrest structure according to claim 4 is characterized in that: Fixing nuts are pre-embedded at positions of the two side plates corresponding to the second fixing holes.

6. The new sofa backrest structure according to claim 2 is characterized in that: Two disassembly and assembly installation plates are arranged opposite to each other on the left and right sides.

7. The new sofa backrest structure according to claim 6 is characterized in that: The front end of the disassembly and assembly mounting plate is provided with a first fixing portion for fixing to the backrest cross beam, and the rear end of the disassembly and assembly mounting plate is provided with a second fixing portion for fixing to the back plate.

8. The new sofa backrest structure according to claim 7 is characterized in that: A third fixing hole is provided on the first fixing portion, a fourth fixing hole matching the third fixing hole is provided on the backrest crossbeam at a position corresponding to the disassembly and assembly mounting plate, a fifth fixing hole is provided on the second fixing portion, and a sixth fixing hole matching the fifth fixing hole is provided on the back plate at a position corresponding to the disassembly and assembly mounting plate.

9. The new sofa backrest structure according to claim 8 is characterized in that: The fifth fixing hole is provided with an internal thread.

10. The new sofa backrest structure according to claim 6, characterized in that: A disassembly and assembly connector for cooperating with a disassembly and assembly key on a sofa base is arranged on one side of the front end of the disassembly and assembly installation plate.

Images