A sofa cushion
By introducing a cushioning structure and a removable outer cover design into the sofa cushions, the problems of poor resilience and inconvenient cleaning are solved, resulting in better cushioning performance, convenient cleaning, and extended service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TAIZHOU TENGHAI NEW MATERIALS CO LTD
- Filing Date
- 2025-06-10
- Publication Date
- 2026-05-26
AI Technical Summary
Existing sofa cushions have poor resilience, which affects their lifespan, and the surface covers are not easy to remove and clean.
It adopts a cushioning structure, including an upper sponge block, a lower sponge block, an upper horizontal plate, a lower horizontal plate, and a cushioning structure. The outer cover is detachably connected to the base. It is equipped with an inflatable column and a spring inside. The outer cover is fixed to the metal buckle by a strap. The outer cover is detachable for easy cleaning.
It improves the cushioning performance and lifespan of the sofa cushions, and the outer cover is easy to remove and clean, keeping the sofa cushions clean and comfortable.
Smart Images

Figure CN224268798U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of sofa technology and relates to a sofa cushion. Background Technology
[0002] Sofa cushions are a type of mat used with sofas to increase comfort when sitting or lying on them. Currently, sofa cushions are mainly made by filling them with sponge and covering them with fabric or leather.
[0003] A search revealed a sofa cushion disclosed in publication number "CN218457759U", comprising a bottom layer of sponge and a top layer of sponge disposed above the bottom layer of sponge. A cooling mat is placed on top of the top layer of sponge. The sofa cushion reduces the amount of sponge used by using air column bags, thereby reducing manufacturing costs. The air column bags also reduce the collapse of the top layer of sponge, thereby increasing the durability of the device.
[0004] The aforementioned sofa cushions reduce the amount of foam used and the problem of sagging through the support of air column bags. However, during use, we found that the sofa cushions have poor resilience, which affects their lifespan. In addition, the surface cover of the sofa cushions is not easy to remove and clean. Summary of the Invention
[0005] The purpose of this utility model is to provide a sofa cushion to solve the problems mentioned in the background art.
[0006] The objective of this utility model can be achieved through the following technical solution: A sofa cushion includes a base, a cushioning component is fixedly installed at the top of the base, an outer protective cover is connected to the surface of the cushioning component, the outer protective cover is detachably connected to the base, the cushioning component is composed of an upper sponge block, a lower sponge block, an upper horizontal plate, a lower horizontal plate and a cushioning structure, multiple cushioning structures are fixedly installed between the upper horizontal plate and the lower horizontal plate, an upper sponge block is fixedly installed at the top of the upper horizontal plate, a lower sponge block is fixedly installed at the bottom of the lower horizontal plate, and the bottom of the lower sponge block is fixedly connected to the top of the base.
[0007] In the aforementioned sofa cushion, a plurality of metal buckles are fixedly provided at equal intervals along the outer edge of the base, and a plurality of straps adapted to the metal buckles are fixedly provided at equal intervals at the bottom of the outer cover, and the straps are fastened and connected to the metal buckles.
[0008] In one of the aforementioned sofa cushions, the surface of the outer cover is fixedly provided with evenly distributed warp and weft strips.
[0009] In the aforementioned sofa cushion, the upper and lower sponge blocks have multiple fixing holes equidistantly spaced inside, and each fixing hole is nested with an inflation column. The sides of the upper and lower sponge blocks are fixed with inflation ports that communicate with the multiple inflation columns, and each inflation port is nested with a sealing plug.
[0010] In one of the aforementioned sofa cushions, an edge banding is fixedly sewn along the outer edge between the upper and lower sponge blocks.
[0011] In the aforementioned sofa cushion, the cushioning structure includes two fixed sleeves, an I-shaped connector, and a spring. The two fixed sleeves are respectively fixedly connected to the bottom end of the upper horizontal plate and the top end of the lower horizontal plate. The I-shaped connector is nested inside the two fixed sleeves. A spring is fixedly installed at the bottom end of each of the two fixed sleeves, and one end of the spring is fixedly connected to the end of the I-shaped connector.
[0012] Compared with the prior art, the advantages of this sofa cushion are as follows: the sofa cushion has an internal cushioning component, which effectively improves the cushioning performance of the sofa cushion. At the same time, the outer cover of the sofa cushion is detachably fixed to the base, which facilitates the removal and cleaning of the outer cover and improves the convenience of using the sofa cushion. Attached Figure Description
[0013] Figure 1 This is a structural schematic diagram of a sofa cushion according to the present invention.
[0014] Figure 2 This is a cross-sectional structural diagram of a cushioning component for a sofa cushion according to this utility model.
[0015] Figure 3 This utility model relates to a sofa cushion. Figure 2 Enlarged view of a portion of point A in the middle.
[0016] In the diagram, 1. Base; 2. Buffer component; 201. Upper sponge block; 202. Lower sponge block; 203. Upper horizontal plate; 204. Fixing hole; 205. Inflation column; 206. Buffer structure; 207. Edge binding; 208. Lower horizontal plate; 209. Fixing sleeve; 210. I-shaped connector; 211. Spring; 3. Inflation port; 4. Metal buckle; 5. Outer protective cover; 6. Strap. Detailed Implementation
[0017] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.
[0018] like Figure 1-3As shown, this utility model discloses a sofa cushion, including a base 1. A cushioning component 2 is fixedly installed on the top of the base 1. An outer cover 5 is connected to the surface of the cushioning component 2. The outer cover 5 is detachably connected to the base 1. The cushioning component 2 is composed of an upper sponge block 201, a lower sponge block 202, an upper horizontal plate 203, a lower horizontal plate 208, and a cushioning structure 206. Multiple cushioning structures 206 are fixedly installed between the upper horizontal plate 203 and the lower horizontal plate 208. The upper sponge block 201 is fixedly installed on the top of the upper horizontal plate 203, and the lower sponge block 202 is fixedly installed on the bottom of the lower horizontal plate 208. The bottom of the lower sponge block 202 is fixedly connected to the top of the base 1.
[0019] Specifically, the sofa cushion has an internal cushioning component 2, which effectively improves the cushioning performance of the sofa cushion. At the same time, the outer cover 5 of the sofa cushion is detachably fixed to the base 1, which facilitates the removal and cleaning of the outer cover 5 and improves the convenience of using the sofa cushion.
[0020] like Figure 1 , Figure 2 and Figure 3 As shown, this utility model provides a sofa cushion. The outer edge of the base 1 is provided with multiple metal buckles 4 at equal intervals, and the bottom end of the outer cover 5 is provided with multiple straps 6 that are adapted to the metal buckles 4 at equal intervals. The straps 6 are fastened and connected to the metal buckles 4.
[0021] The surface of the outer protective cover 5 is fixed with evenly distributed warp and weft strips.
[0022] Specifically, the straps 6 and metal buckles 4 facilitate the connection and disassembly of the outer cover 5 and the base 1, making it easy to remove and clean the outer cover 5, thus ensuring the cleanliness of the sofa cushion.
[0023] like Figure 1 , Figure 2 and Figure 3 As shown, this utility model discloses a sofa cushion. The upper sponge block 201 and the lower sponge block 202 are provided with multiple fixing holes 204 at equal intervals inside. Each fixing hole 204 is nested with an inflation column 205. The sides of the upper sponge block 201 and the lower sponge block 202 are fixed with an inflation port 3 that communicates with the multiple inflation columns 205. A sealing plug is nested inside the inflation port 3.
[0024] Specifically, through the air inlet 3, multiple air columns 205 inside can be inflated. The air columns 205 expand when inflated, increasing the elasticity of the sponge block. It should be noted that the maximum expansion volume of the air column 205 is adapted to the internal space of the fixing hole 204.
[0025] An edging 207 is fixedly sewn along the outer edge between the upper sponge block 201 and the lower sponge block 202.
[0026] Specifically, the edging 207 can encapsulate the internal buffer structure 206, and the edging 207 is preferably a sponge structure.
[0027] like Figure 1 , Figure 2 and Figure 3 As shown, this utility model discloses a sofa cushion with a cushioning structure 206 including two fixing sleeves 209, an I-shaped connector 210, and a spring 211. The two fixing sleeves 209 are fixedly connected to the bottom end of the upper horizontal plate 203 and the top end of the lower horizontal plate 208, respectively. The I-shaped connector 210 is nested inside the two fixing sleeves 209. The bottom end of each fixing sleeve 209 is fixedly installed with a spring 211, and one end of the spring 211 is fixedly connected to the end of the I-shaped connector 210.
[0028] Specifically, the elastic properties of spring 211 give the sofa cushion good elasticity and recovery ability, preventing the internal sponge from collapsing due to prolonged sitting or lying down, thus affecting the lifespan of the sofa cushion.
[0029] In specific implementation, when producing the sofa cushion, the air inlet 3 is first opened manually, and an external air pump is connected to the air inlet 3 to facilitate the inflation of multiple air columns 205. The maximum expansion of the air column 205 is matched with the inner diameter of the fixing hole 204. Then, a sealing plug is installed, and the outer cover 5 and the surface of the cushion 2 are covered manually. The outer cover 5 is fastened to the metal buckle 4 through the strap 6 to facilitate the connection between the outer cover 5 and the base 1.
[0030] When using this sofa cushion, the combination of the upper sponge block 201, the lower sponge block 202, the cushioning element 2, and the air column 205 provides good cushioning performance, improving the comfort of sitting and lying on the sofa cushion. At the same time, the air column 205 inside the sponge block makes the cushioning element 2 less prone to deformation, thereby improving the service life of the sofa cushion. In addition, the outer cover 5 is fastened to the metal buckle 4 on the outside of the base 1 by the strap 6, making it convenient to remove and clean the outer cover 5.
[0031] Contents not described in detail herein are existing technologies known to those skilled in the art. The specific embodiments described herein are merely illustrative examples illustrating the spirit of this invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this invention or exceeding the scope defined by the appended claims.
Claims
1. A sofa cushion comprising a base (1), characterized in that, A buffer component (2) is fixedly installed at the top of the base (1). An outer cover (5) is connected to the surface of the buffer component (2). The outer cover (5) is detachably connected to the base (1). The buffer component (2) is composed of an upper sponge block (201), a lower sponge block (202), an upper horizontal plate (203), a lower horizontal plate (208), and a buffer structure (206). Multiple buffer structures (206) are fixedly installed between the upper horizontal plate (203) and the lower horizontal plate (208). An upper sponge block (201) is fixedly installed at the top of the upper horizontal plate (203), and a lower sponge block (202) is fixedly installed at the bottom of the lower horizontal plate (208). The bottom of the lower sponge block (202) is fixedly connected to the top of the base (1).
2. The sofa cushion of claim 1, wherein The base (1) has multiple metal buckles (4) fixed at equal intervals along its outer edge, and the bottom of the outer cover (5) has multiple straps (6) that are compatible with the metal buckles (4) fixed at equal intervals. The straps (6) are fastened to the metal buckles (4).
3. A sofa cushion according to claim 2, wherein, The surface of the outer protective cover (5) is fixed with uniformly distributed warp and weft strips.
4. The sofa cushion of claim 1, wherein, The upper sponge block (201) and the lower sponge block (202) are provided with multiple fixing holes (204) at equal intervals inside. Each of the multiple fixing holes (204) is nested with an inflation column (205). The sides of the upper sponge block (201) and the lower sponge block (202) are fixed with an inflation port (3) that communicates with the multiple inflation columns (205). The inflation port (3) is nested with a sealing plug.
5. A sofa cushion according to claim 4, wherein, An edging (207) is fixedly sewn along the outer edge between the upper sponge block (201) and the lower sponge block (202).
6. The sofa cushion of claim 1, wherein, The buffer structure (206) includes two fixed sleeves (209), an I-shaped connector (210), and a spring (211). The two fixed sleeves (209) are fixedly connected to the bottom end of the upper horizontal plate (203) and the top end of the lower horizontal plate (208), respectively. The I-shaped connector (210) is nested inside the two fixed sleeves (209). The bottom end of each of the two fixed sleeves (209) is fixedly installed with a spring (211). One end of the spring (211) is fixedly connected to the end of the I-shaped connector (210).