Adjustable sofa chair
By designing adjustable lumbar and headrest cushions for the sofa chair, and using adjustable straps to achieve height adjustment and disassembly, the issues of sofa chair comfort and applicability are solved, enabling multi-scenario use and resource conservation.
Patent Information
- Application Number
- CN202520094186.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-15
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2035-01-15
AI Technical Summary
The backrests of existing sofas tend to be vertical, resulting in low comfort and applicability, making it difficult to meet the needs of different groups of people. Furthermore, their use is limited to a single scenario, leading to serious waste of resources.
Design an adjustable sofa chair that includes a lumbar support cushion and a headrest cushion. The height of the cushion can be adjusted by setting a first adjustment strap and a second adjustment strap to adapt to the body structure of different people. The cushion can be removed and used separately by means of a buckle connection.
It improves the comfort and adaptability of the seats, adapts to the needs of different scenarios, avoids resource waste, and achieves multiple uses for one product.
Smart Images

Figure CN223614457U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of furniture, and in particular to an adjustable sofa chair. Background Technology
[0002] In daily life and work, there are many situations where seating is needed. Because the backrest of some sofas tends to be perpendicular to the seat cushion, the comfort and fit of the chair are relatively low, which often causes people who sit for long periods of time to feel back pain, fatigue, and even lumbar disc herniation.
[0003] To address these issues, various back cushions have emerged on the market to improve sitting comfort. However, due to differences in the position of the human waist, existing back cushions have low adaptability and are difficult to adapt to the body structures of different people. Furthermore, this type of sofa and chair has a limited range of uses, mainly for office use, and cannot be used in leisure or home settings, resulting in significant resource waste.
[0004] Therefore, this utility model provides an adjustable sofa chair with a lumbar support cushion and a headrest cushion, the height of which can be adjusted separately, catering to both leisure and family settings and adapting to the body structure of different people. Utility Model Content
[0005] To achieve the above objectives, the present invention adopts the following technical solution: an adjustable sofa chair, comprising: a seat back, a headrest, a lumbar support, a first adjustment belt, and a second adjustment belt. The headrest and lumbar support are arranged sequentially along the direction of gravity. Both ends of the first adjustment belt are disposed on the headrest, and both ends of the second adjustment belt are disposed on the lumbar support. Both the first and second adjustment belts are rotatably disposed on the seat back. The center lines of the first and second adjustment belts are coaxially and horizontally arranged. The first and second adjustment belts are parallel to each other. Both the first and second adjustment belts are provided with a receiving space for accommodating the seat back, and the cross-section of the receiving space is smaller than the cross-section of the seat back.
[0006] Preferably, the adjustable sofa chair further includes several limiting strips, each limiting strip having a sewn section and a spacer section, the sewn section and the spacer section being connected end to end in sequence, the sewn section being sewn onto the seat back, and a limiting gap being provided between the spacer section and the seat back for the first adjustment belt or the second adjustment belt to pass through.
[0007] Preferably, the limiting strip is disposed between the headrest cushion and the lumbar cushion, and the limiting strip is disposed around the seat back.
[0008] Preferably, both the first adjusting belt and the second adjusting belt are elastic bands.
[0009] Preferably, the headrest cushion is provided with a first connector, the lumbar cushion is provided with a second connector, the two ends of the first adjustment belt are detachably disposed at the two ends of the first connector, and the two ends of the second adjustment belt are detachably disposed at the two ends of the second connector.
[0010] Preferably, both the first connector and the second connector are snap fasteners, each snap fastener including a female snap fastener and a male snap fastener. The female snap fastener is fixed to both ends of the headrest or the waistrest, and the male snap fastener is disposed at both ends of the first adjusting belt. Both ends of the female snap fastener are provided with slots for the male snap fastener to be inserted.
[0011] Preferably, the adjustable sofa chair further includes a seat cushion, and a seat gap is provided between the seat cushion and the seat back, with the first adjustment strap and the second adjustment strap both passing through the seat gap.
[0012] Preferably, 95°≤a≤115°, where a is the angle between the seat cushion and the seat back.
[0013] Preferably, the female buckle is integrally formed with a fixing ring, and the head cushion and waist cushion are both sewn with fixing ropes, which pass through the fixing rings one by one.
[0014] Preferably, the fixing rope is an elastic band or a braided band.
[0015] Preferably, the length of the lumbar support cushion is greater than the length of the headrest cushion.
[0016] The beneficial effects of this invention are as follows: the adjustment strap is detachably mounted on the headrest or lumbar support cushion, wrapping around the backrest. The adjustment strap fits tightly against the backrest, preventing it from slipping due to its own weight. Because the adjustment strap is elastic, pulling the headrest or lumbar support cushion away from the backrest and moving it up and down allows for height adjustment, thus improving the comfort and adaptability of the seat and making it more convenient for people of different heights to use.
[0017] Furthermore, the adjustment strap is installed via a buckle and can be removed from the back of the cushion, allowing the headrest and lumbar support to be removed. Both the sofa and the cushion can be used independently, avoiding resource waste and thus catering to various scenarios such as leisure and family use, achieving multiple uses with one item. Attached Figure Description
[0018] The accompanying drawings further illustrate the present invention, but the embodiments in the drawings do not constitute any limitation on the present invention.
[0019] Figure 1 This is a schematic diagram of a structure provided for an embodiment of the present utility model;
[0020] Reference numerals in the attached drawings: 1: Seat cushion; 2: Seat back; 3: Limiting strip; 4: Headrest cushion; 5: Lumbar support cushion; 6: First adjustment belt; 7: Second adjustment belt; 8: First connector; 9: Second connector. Detailed Implementation
[0021] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.
[0022] It should be noted that, in this utility model, unless otherwise stated, when an element is referred to as being "set on" or "connected to" another element, it can be directly on the other element or an intervening element may be present simultaneously. When an element is referred to as being "fixed to" another element, it can be directly fixed to the other element or detachably mounted to the other element.
[0023] like Figure 1 As shown in the figure, an adjustable sofa chair provided by an embodiment of the present invention includes: a seat back 2, a headrest cushion 4, a lumbar support cushion 5, a first adjustment belt 6, and a second adjustment belt 7. The headrest cushion 4 and the lumbar support cushion 5 are arranged sequentially along the direction of gravity. Both ends of the first adjustment belt 6 are disposed on the headrest cushion 4, and both ends of the second adjustment belt 7 are disposed on the lumbar support cushion 5. Both the first adjustment belt 6 and the second adjustment belt 7 can be rotatably disposed on the seat back 2. The center lines of the first adjustment belt 6 and the second adjustment belt 7 are coaxially arranged and horizontally arranged. The first adjustment belt 6 and the second adjustment belt 7 are arranged parallel to each other. Both the first adjustment belt 6 and the second adjustment belt 7 are provided with a receiving space for accommodating the seat back 2. The cross-section of the receiving space is smaller than the cross-section of the seat back 2.
[0024] The adjustable sofa chair also includes several limiting strips 3. Each limiting strip 3 has a sewn section and a spacer section. The sewn section and the spacer section are connected end to end in sequence. The sewn section is sewn onto the seat back 2. A limiting gap is provided between the spacer section and the seat back 2 for the first adjusting belt 6 or the second adjusting belt 7 to pass through.
[0025] The limiting strip 3 is disposed between the headrest cushion 4 and the lumbar cushion 5, and the limiting strip 3 is disposed around the seat back 2.
[0026] Both the first adjusting belt 6 and the second adjusting belt 7 are elastic belts.
[0027] The headrest cushion 4 is provided with a first connector 8, and the waist cushion 5 is provided with a second connector 9. The two ends of the first adjustment belt 6 are detachably disposed at the two ends of the first connector 8, and the two ends of the second adjustment belt 7 are detachably disposed at the two ends of the second connector 9.
[0028] Both the first connector 8 and the second connector 9 are snap fasteners. Each snap fastener includes a female snap fastener and a male snap fastener. The female snap fastener is fixed to both ends of the head cushion 4 or the waist cushion 5. The male snap fastener is located at both ends of the first adjusting belt 6. Both ends of the female snap fastener are provided with slots for the male snap fastener to be inserted.
[0029] The adjustable sofa chair also includes a seat cushion 1, and a seat gap is provided between the seat cushion 1 and the seat back 2. The first adjustment strap 6 and the second adjustment strap 7 are both inserted through the seat gap.
[0030] 95°≤a≤115°, where a is the angle between the seat cushion 1 and the seat back 2.
[0031] The female buckle is integrally formed and has a fixing ring. The head cushion 4 and the waist cushion 5 are both sewn with fixing ropes, and the fixing ropes pass through the fixing rings one by one.
[0032] The fixing rope is an elastic band or a braided band.
[0033] The length of the lumbar support cushion 5 is greater than the length of the headrest cushion 4.
[0034] The technical features of the embodiments described above can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these should all be considered to be within the scope of this specification.
Claims
1. An adjustable sofa chair, characterized in that: include: The seat includes a backrest, a headrest, a lumbar support, a first adjustment belt, and a second adjustment belt. The headrest and lumbar support are arranged sequentially along the direction of gravity. Both ends of the first adjustment belt are located on the headrest, and both ends of the second adjustment belt are located on the lumbar support. Both the first and second adjustment belts are rotatably mounted on the backrest. The center lines of the first and second adjustment belts are coaxial and horizontal. The first and second adjustment belts are parallel to each other. Both the first and second adjustment belts have a receiving space for accommodating the backrest, and the cross-section of the receiving space is smaller than the cross-section of the backrest.
2. The adjustable sofa chair according to claim 1, characterized in that: It also includes several limiting strips, each limiting strip having a sewn section and a spacer section, the sewn section and the spacer section being connected end to end in sequence, the sewn section being sewn onto the seat back, and a limiting gap being provided between the spacer section and the seat back for the first adjustment belt or the second adjustment belt to pass through.
3. The adjustable sofa chair according to claim 2, characterized in that: The limiting strip is located between the headrest and the lumbar support, and the limiting strip is arranged around the seat back.
4. The adjustable sofa chair according to claim 3, characterized in that: Both the first and second adjusting belts are elastic bands.
5. The adjustable sofa chair according to claim 4, characterized in that: The headrest cushion is provided with a first connector, and the lumbar support cushion is provided with a second connector. The two ends of the first adjustment belt are detachably disposed at the two ends of the first connector, and the two ends of the second adjustment belt are detachably disposed at the two ends of the second connector.
6. The adjustable sofa chair according to claim 5, characterized in that: Both the first and second connectors are snap fasteners, each consisting of a female and a male. The female snap fastener is fixed to both ends of the headrest or the waistrest, while the male snap fastener is located at both ends of the first adjustment belt. Both ends of the female snap fastener have slots for the male snap fastener to be inserted.
7. The adjustable sofa chair according to claim 6, characterized in that: It also includes a seat cushion, with a seat gap between the seat cushion and the seat back, and the first adjustment strap and the second adjustment strap both passing through the seat gap.
8. The adjustable sofa chair according to claim 7, characterized in that: The female buckle is integrally formed and has a fixing ring. The head cushion and waist cushion are both sewn with fixing ropes, and the fixing ropes pass through the fixing rings one by one.
9. The adjustable sofa chair according to claim 8, characterized in that: The fixing rope is an elastic band or a braided band.
10. The adjustable sofa chair according to claim 7, characterized in that: The length of the lumbar support cushion is greater than the length of the headrest cushion.