Inflatable down feather pillow

Abstract

The utility model discloses an inflatable down feather pillow which comprises a super-soft velvet cloth layer, a down feather layer, an inflatable layer and a 10d nylon plaid cloth layer which are sequentially compounded from top to bottom. An inflation valve is arranged between the inflation layer and the 10d nylon plaid cloth layer, the inflation valve penetrates through the 10d nylon plaid cloth layer and is communicated with the inflation layer, and an air tap capable of being opened and closed in two directions is integrated in the inflation valve; the super-soft velvet cloth layer is fixedly connected with the down feather layer, and a neck supporting and wrapping curved surface is formed on one side of the down feather layer. According to the inflatable down feather pillow, the down feather layer and the inflatable layer are combined, the down feather layer provides natural soft touch feeling, and the pillow can completely wrap the cervical vertebra when a user lies on the side and lies flat; after air is exhausted, the whole pillow can be folded and is matched with the wear-resistant outer layer of the 10D nylon plaid cloth layer, operation can be rapidly completed without additional tools when the pillow is stored, the size is small after the pillow is folded, and the pillow is suitable for being used in travel scenes or outdoor scene camping.

Description

Technical Field

[0001] This utility model relates to the field of down pillow technology, and more specifically to an inflatable down pillow. Background Technology

[0002] The portability drawback of traditional down pillows: Traditional down pillows rely on the fluffy structure of natural down for support, but their volume is bulky and difficult to compress, requiring a large amount of space for storage (typically about 30×25×15cm), making them particularly unsuitable for travel, camping, and other similar scenarios. Although some products use compression bags for storage, repeated compression can easily cause the down's elasticity to decrease, affecting its lifespan (tests show that after 50 compressions, the loft decreases by 20%).

[0003] Inflatable pillows lack comfort. Most existing inflatable pillows use a single air layer structure, relying on air pressure to adjust height. However, the materials are relatively hard (such as PVC coated fabric), lacking a soft touch, and the neck support is rigid. When lying on one's side, the cervical spine is easily unsupported (with a gap of 2-3 cm), leading to neck pain upon waking. In addition, the single air layer structure does not have heat retention properties.

[0004] Therefore, how to provide an inflatable down pillow that uses a down layer and an air layer for synergistic support, with an integrated venting and folding design, effectively solving the incompatibility between portability, comfort, durability, and warmth of traditional pillows is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the present invention provides an inflatable down pillow.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An inflatable down pillow comprises, from top to bottom, an ultra-soft velvet fabric layer, a down layer, an inflatable layer, and a 10d nylon checkered fabric layer.

[0008] An inflation valve is provided between the inflatable layer and the 10d nylon grid fabric layer. The inflation valve passes through the 10d nylon grid fabric layer and communicates with the inflatable layer. An air nozzle that can be opened and closed in both directions is integrated inside the inflation valve. The ultra-soft velvet fabric layer is fixedly connected to the down layer and forms a neck support wrapping curved surface on one side of the down layer.

[0009] Preferably, the ultra-soft velvet fabric layer is made of velvet material and has a brushed surface to form a dense short pile layer.

[0010] Preferably, the inflatable layer is made of TPU composite material and has an independent air chamber inside. The inflatable layer is bonded to the bottom surface of the down layer through a hot pressing process.

[0011] Preferably, the bottom surface of the inflatable layer is connected to the 10d nylon grid fabric layer by sewing.

[0012] Preferably, the 10d nylon grid fabric layer is made of 100% nylon fiber, the surface is treated with a water-repellent coating, and it is fixed to the edge of the inflatable layer by sewing to form a wear-resistant and waterproof bottom layer structure.

[0013] As can be seen from the above technical solution, compared with the prior art, the inflatable down pillow disclosed in this utility model combines a down layer and an air layer. The down layer provides a naturally soft touch and can completely wrap the cervical spine when lying on one's side or back. The lower air layer uses TPU composite air chambers, and the air pressure can be adjusted by an inflation valve to achieve stepless adjustment of the overall height of the pillow, adapting to different sleeping positions. After deflating, the entire pillow can be folded. Combined with the wear-resistant outer layer of 10D nylon grid fabric, storage can be completed quickly without additional tools. The folded size is compact and suitable for travel or outdoor camping. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0015] Figure 1 The attached figure is a front view schematic diagram of the main body structure of this utility model.

[0016] Figure 2 The attached figure is a schematic diagram of the inflation valve of this utility model. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] This utility model discloses an inflatable down pillow, comprising, from top to bottom, a super-soft velvet fabric layer 10, a down layer 20, an inflatable layer 30, and a 10d nylon checkered fabric layer 40; an inflation valve 50 is provided between the inflatable layer 30 and the 10d nylon checkered fabric layer 40, the inflation valve 50 penetrates the 10d nylon checkered fabric layer 40 and communicates with the inflatable layer 30, and the inflation valve 50 integrates a bidirectional air nozzle 51; the super-soft velvet fabric layer 10 is fixedly connected to the down layer 20, and forms a neck support and wrapping curved surface on one side of the down layer 20.

[0019] The ultra-soft velvet layer 10 is made of velvet material with a brushed surface, forming a dense short pile layer that provides a soft and delicate touch. This layer covers the upper surface of the down layer 20 and is fixed to the edge of the down layer 30 by a sewing process, ensuring a tight fit and no down leakage. The ultra-soft velvet layer 10 is in direct contact with the user's head and neck, providing a skin-friendly feel. In addition, the ultra-soft velvet layer 10 is breathable and automatically allows air in after manual extrusion without leaking down. This is mainly due to the synergistic effect of material structure design, surface treatment process, and down-proof technology. The specific principles are as follows: I. Breathability Principle: Air circulation between the pile structure and fiber gaps. Velvet material has natural breathability, and a dense pile layer is formed on the surface of the velvet layer 10. A micron-level pore network (pore diameter 50-100μm) is naturally formed between the pile fibers, allowing air molecules (diameter approximately 0.3nm) to pass through while blocking down fibers (diameter ≥20μm) from leaking out. Down fibers have a diameter of approximately 20-50 μm, while the pore diameter of velvet is much smaller than that of down fibers, creating a "sieve effect" that balances breathability and down leakage prevention.

[0020] II. Automatic Air Intake Principle After Compression and Exhaust: Driven by air pressure difference and fabric elasticity, when the user presses the pillow (e.g., while lying on their side), the down layer 20 is compressed, and the air in the down layer 20 overflows outward through the pores of the velvet fabric layer 10. At this time, the down feathers are compressed and flattened, and the pores temporarily shrink, but due to the air pressure difference (internal air pressure > external air pressure), air can still be expelled through the fiber gaps. After the pressure is released, the elasticity of the down layer 20 (down fill power 650+) and the elastic recovery force of the velvet fabric layer 10 (elastic modulus of polyester fiber approximately 300-500MPa) work together to restore the pillow to its original shape, creating a negative pressure environment inside (air pressure < external atmospheric pressure). At this time: driven by the air pressure difference, external air flows in rapidly through the pores of the velvet fabric layer 10, filling the internal space; the down feathers stand upright under the action of airflow, and the pores return to their initial state (diameter 50-100μm), ensuring efficient air intake. The velvet fabric layer 10 achieves passive air intake through the elastic deformation and porosity of the material itself, without the need for additional structures, simplifying the design while avoiding the risk of mechanical failure.

[0021] In addition, the base fabric density of the velvet layer 10 is 130 warp yarns / cm and 110 weft yarns / cm, which far exceeds that of traditional down-proof fabrics (80-100 yarns / cm). Combined with the "physical interception" of the pile layer, it forms a double down-proof barrier.

[0022] The down layer 20 is filled with 95% white goose down with a fill power of 650+. It adopts a vertical support structure, that is, longitudinal support strips are set inside the down layer 20 to form a natural concave arc in the neck area. When the user lies on his / her side, the down layer can completely wrap the neck, providing a support angle of 15-20° and reducing cervical spine pressure.

[0023] The inflatable layer 30 is made of TPU composite material that meets 6P environmental standards and has an independent air chamber inside. The inflatable layer is bonded to the bottom surface of the down layer 20 by a hot-pressing process, and the edges are sealed by welding to prevent air leakage. The bottom surface of the inflatable layer is connected to the 10d nylon checkered fabric layer 40 by sewing.

[0024] The 10d nylon grid fabric layer 40 is made of 100% nylon fiber with a density of 60T and has a water-repellent coating. This layer covers the lower surface of the inflatable layer 30 and is fixed to the edge of the inflatable layer 30 by sewing, forming a wear-resistant and waterproof bottom layer structure.

[0025] The inflation valve 50 is located at the edge of the 10D nylon lattice fabric layer 40 and has a built-in two-way air nozzle. In the air intake mode, the air nozzle 51 protrudes upwards, allowing outside gas to enter the inflation layer 30 through a one-way channel, maintaining an intake-only mode. Pressing down on the air nozzle and rotating it activates the exhaust mode. The valve assembly consists of a valve body upper cover, a valve body lower cover, a valve cap, the air nozzle 51, a first elastic sheet, a second elastic sheet, and a seal. It is made of a composite material of ABS engineering plastic (valve body) and silicone (elastic sheet, seal) and is ultrasonically welded to the edge of the 10D nylon lattice fabric layer 40.

[0026] Intake mode: The nozzle is convex, allowing for one-way air intake. The nozzle 51 is convex under the elastic force of the first elastic plate (elastic coefficient 10 N / m), with the top surface of the nozzle higher than the valve body cover. The silicone sealing gasket at the bottom of the nozzle tightly fits against the exhaust channel inlet of the valve body cover, blocking the exhaust path; simultaneously, the silicone valve of the one-way intake channel naturally opens under external air pressure.

[0027] When using an air pump or mouth to inflate, the external gas pressure (>0.1 bar internal pressure) pushes the valve of the one-way air intake channel to open, and the gas enters through "valve body cover through hole → air nozzle side guide groove → inflation layer (30)".

[0028] The elasticity of the first elastic plate ensures that the air nozzle always blocks the exhaust passage, forming a one-way flow of "only air in, no air out". Even if inflation stops, the internal air pressure will not push the air nozzle down (a pressing force of ≥1.5N is required to overcome the elasticity).

[0029] The air nozzle and the through hole of the valve body cover are fitted with a clearance fit, and an O-ring silicone ring is built in. When the air nozzle protrudes, it forms a radial seal to prevent air leakage. The C-shaped sealing ring at the connection between the valve body cover and the inflation layer achieves axial sealing through an interference fit.

[0030] Exhaust mode: Press and rotate, bidirectional flow. The user must first press down on the valve cap to overcome the elastic force of the first elastic plate, causing the air nozzle to move downwards until the spiral protrusion of the valve cap aligns with the spiral groove on the valve body cover. Rotating clockwise 90° causes the spiral structure to drive the air nozzle to rotate synchronously, rotating the sealing gasket at the bottom of the air nozzle until it is fully aligned with the exhaust channel, simultaneously opening both the intake and exhaust channels. With the exhaust channel fully open, the gas within the inflation layer 30 is rapidly discharged through the "inflation layer → exhaust channel on the lower valve body cover → central through-hole of the air nozzle → outside".

[0031] This utility model discloses an inflatable down pillow that combines a down layer and an air layer. The down layer provides a naturally soft touch and completely wraps around the cervical spine when lying on one's side or back. The lower air layer uses TPU composite air chambers, and the air pressure can be adjusted via an inflation valve to achieve stepless height adjustment of the entire pillow, adapting to different sleeping positions. After deflation, the entire pillow can be folded. Combined with a wear-resistant outer layer of 10D nylon checkered fabric, storage can be completed quickly without additional tools. Its compact size after folding makes it suitable for travel or outdoor camping.

[0032] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An inflatable down pillow, characterized in that, include: The layers are composed of an ultra-soft velvet fabric layer (10), a down layer (20), an air-filled layer (30), and a 10d nylon checkered fabric layer (40) from top to bottom. An inflation valve (50) is provided between the inflatable layer (30) and the 10d nylon lattice fabric layer (40). The inflation valve (50) passes through the 10d nylon lattice fabric layer (40) and communicates with the inflatable layer (30). An air nozzle (51) that can be opened and closed in both directions is integrated inside the inflation valve (50). The ultra-soft velvet fabric layer (10) is fixedly connected to the down layer (20) and a neck support wrapping curved surface is formed on one side of the down layer (20).

2. The inflatable down pillow according to claim 1, characterized in that, The ultra-soft velvet fabric layer (10) is made of velvet material and has been brushed to form a dense short pile layer.

3. The inflatable down pillow according to claim 1, characterized in that, The inflatable layer (30) is made of TPU composite material and has an independent air chamber inside. The inflatable layer (30) is bonded to the bottom surface of the down layer (20) by hot pressing.

4. The inflatable down pillow according to claim 3, characterized in that, The bottom surface of the inflatable layer (30) is connected to the 10d nylon checkered fabric layer (40) by sewing.

5. The inflatable down pillow according to claim 1, characterized in that, The 10d nylon grid fabric layer (40) is made of 100% nylon fiber, and the surface is treated with a water-repellent coating. It is fixed to the edge of the air layer (30) by sewing to form a wear-resistant and waterproof bottom layer structure.

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