Down quilt adopting vertical lining technology

By incorporating positioning components within the comforter body and cover, the problems of difficulty in inserting the comforter into the cover, misalignment of the corners, and easy slippage are solved. The design employs a vertical lining process, which, through the placement of positioning components within the comforter body and cover, including fasteners and receiving slots, addresses the issues of difficulty in inserting the comforter into the cover and misalignment of the corners, improving insertion efficiency and stability while maintaining the cleanliness and comfort of the cover.

CN121264797APending Publication Date: 2026-01-06HANGZHOU HANYUN INFORMATION TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202511565032.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-10-30
Publication Date
2026-01-06

AI Technical Summary

Technical Problem

Existing down comforters are difficult to insert into the duvet cover, the corners are hard to align and easily slip off, making them inconvenient to use.

Method used

The design employs a stand-up lining process, which uses positioning components, including fasteners and receiving slots, inside the comforter body and cover. Combined with the stitching of the fabric layers and concealed fittings, this ensures that the four corners of the comforter are fixed in the storage cavity, providing quick alignment and stable fixation.

Benefits of technology

It solves the problems of difficulty in inserting down comforters into duvet covers and the comforter corners slipping off, improving insertion efficiency and stability while maintaining the cleanliness and comfort of the duvet cover.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention belongs to the technical field of down quilts, and particularly relates to a down quilt adopting a vertical lining technology, which comprises a down quilt body, a vertical lining layer and a vertical lining layer, the quilt cover is formed by sewing a first fabric layer, a second fabric layer and a third fabric layer along the side edges, a wrapping piece with a closed edge is formed, and the second fabric layer and the third fabric layer are located on the same side; the storage inner cavity is formed among the first fabric layer, the second fabric layer and the third fabric layer, and the size of the storage inner cavity is set to be capable of containing the down quilt body and enabling the down quilt body not to be seen; the opening is formed in the overlapping position of the second fabric layer and the third fabric layer and used for allowing the down quilt body to enter the storage inner cavity or be taken out of the storage inner cavity; the positioning assemblies are arranged in the quilt cover and on the down quilt body and used for fixing the four corners of the down quilt to the four inner corners of the inner cavity of the storage cavity; wherein a hidden matching piece for connection is arranged between the second fabric layer and the third fabric layer.
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Description

Technical Field

[0001] This application belongs to the field of down comforter technology, and particularly relates to a down comforter with a stand-up lining process. Background Technology

[0002] Down comforters differ from other types of comforters in that they require a duvet cover as a core, into which down is then filled, cell by cell. Therefore, the duvet cover must be made of high-quality fabric with a down-proof factor.

[0003] When processing down comforters, a stand-up lining process is required, where the comforter is sewn together before filling. Stand-up lining strips are used to sew the compartments together, creating an independent compartmentalized design. A small filling opening is left between each compartment, and the down is then evenly filled into each compartment. This reduces down leakage and results in a complete and warm down comforter. Down comforters require a duvet cover for protection during use. However, inserting the duvet cover into existing down comforters is very laborious and time-consuming, especially for large down comforters. Even after insertion, the corners of the duvet are often misaligned and can easily slip off during use. This needs to be improved. Summary of the Invention

[0004] The purpose of this application is to provide a down comforter with a stand-up lining process that can solve the above-mentioned problems.

[0005] The purpose of this application is to provide a down comforter with a stand-up lining process, comprising: The down comforter itself has a filling layer inside; The duvet cover is formed by sewing a first fabric layer, a second fabric layer, and a third fabric layer along the side to form a wrap with a closed edge, with the second and third fabric layers located on the same side. The inner cavity is located between the first fabric layer, the second fabric layer and the third fabric layer, and its size is designed to accommodate the down comforter body and make it invisible. An opening is provided at the overlap of the second and third fabric layers to allow the down comforter body to enter or be taken out of the storage cavity. Positioning components are provided both inside the duvet cover and on the duvet itself, used to fix the four corners of the duvet to the four inner corners of the storage cavity. A concealed mating part for connection is provided between the second fabric layer and the third fabric layer.

[0006] The down comforter using the aforementioned stand-up lining technology solves the problems of difficulty in inserting the comforter into the cover, misalignment of the corners, and easy slippage associated with existing down comforters. The cover consists of a first fabric layer, a second fabric layer, and a third fabric layer sewn along the sides to form a closed-edge wrapping, creating an inner cavity that accommodates the down comforter and ensures it is completely covered and not exposed, improving overall integrity. The opening is located at the overlap of the second and third fabric layers, providing a channel for inserting and removing the down comforter, reducing obstruction during insertion or removal.

[0007] Meanwhile, positioning components are set at the four corners of the duvet cover and the duvet body, which can quickly guide the duvet corners to align with the inner corners of the storage cavity during insertion, thus avoiding repeated adjustments. The fixed duvet corners are not easy to slip off during use. The positioning components are located in the corners and are small in size, so they will not affect the comfort during use or damage the overall appearance. In addition, the hidden mating parts between the second and third fabric layers can achieve the connection function without being exposed, keeping the duvet cover surface clean.

[0008] Furthermore, the positioning component includes: Fasteners are installed at the four corners of the down comforter body; A receiving slot, located on the cover, can mate with fasteners and secure the fasteners; The fasteners are disposed on the surface of the down comforter body, and the receiving slots are disposed at the corners of the second and third fabric layers corresponding to the first fabric layer.

[0009] The fasteners and receiving slots in the positioning assembly further optimize the alignment and fixation of the down comforter and duvet cover. The fasteners are installed at the four corners of the down comforter, and the receiving slots are correspondingly located on the duvet cover. This alignment allows the four corners to quickly find their corresponding positions when the down comforter is inserted into the duvet cover, effectively reducing adjustment time during insertion and solving the problem of difficult insertion of large down comforters. The fasteners are located on the surface of the down comforter, while the receiving slots are located at the corners corresponding to the second, third, and first fabric layers. This positioning design ensures the stability of the fixing points, preventing the corners from shifting or slipping during use, while also avoiding interference from the positioning structure to other areas of the down comforter or duvet cover.

[0010] Furthermore: the fastener includes: Positioning straps are sewn onto the main body of the down comforter; The positioning element is spherical and is fixed to the positioning tape by sewing thread; The fasteners are made of fabric and are elastic.

[0011] The fasteners are made of positioning tape sewn onto the down comforter body, while spherical positioning elements are fixed to the positioning tape with sewing thread. The entire structure is made of fabric and has an elastic design, offering multiple benefits. The positioning tape, sewn to the down comforter body, ensures a secure connection and prevents it from falling off during repeated use or washing, thus guaranteeing the durability of the positioning function. The spherical positioning element allows for smoother insertion into the receiving slot, reducing alignment resistance and improving insertion efficiency. The elastic fabric material prevents the fasteners from feeling stiff when in contact with the body, avoiding any impact on sleep comfort. Furthermore, the elasticity accommodates slight deformation of the down comforter body during use and allows it to return to its original shape after engaging with the receiving slot, reducing the risk of the positioning structure detaching or being damaged due to pulling, and extending its service life.

[0012] Furthermore, the receiving slot includes: The trough extends through the duvet cover; Reinforcing strips, rectangular in shape and installed at the edge of the tank, are supported by elastic material and used to prevent the tank from tearing. The reinforcing strips are installed on both sides of the cover, and the middle of the reinforcing strip has a groove that communicates with the groove body.

[0013] The receiving slot features a design where the slot extends through the cover, reinforcing strips are installed along the edges and on both sides, and the reinforcing strips have a central opening communicating with the slot. This design enhances the reliability and durability of the positioning fit. The through-hole design provides a path for the insertion and removal of the spherical positioning element, reducing obstruction during positioning. The rectangular, elastic reinforcing strips adapt to the insertion of the positioning element, ensuring a tight fit, and effectively resist tearing forces at the slot edges during repeated use, preventing wear and tear and extending the service life of the receiving slot. Simultaneously, the reinforcing strips on both sides further strengthen the slot edges, while the central opening guides the entry and exit of the positioning element, ensuring a stable fit between the fasteners and the receiving slot and preventing loosening.

[0014] Furthermore, the edges of the first fabric layer, the second fabric layer, and the third fabric layer are all provided with binding edges, which are folded and sewn together by themselves, and the binding edges of the first fabric layer and the second fabric layer, as well as the first fabric layer and the third fabric layer, are also sewn together by sewing thread.

[0015] In this application, the edges of the first, second, and third fabric layers all employ self-folding and sewing binding, and the bindings of the first and second fabric layers, as well as the bindings of the first and third fabric layers, are also sewn together, thus enhancing the overall durability of the duvet cover. The self-folding and sewing binding makes the fabric edges thicker, effectively enhancing abrasion resistance and preventing edge unraveling or damage during long-term use or washing. Furthermore, the stitching connection between the multiple binding layers further strengthens the overall structure of the duvet cover, making the connection between the three fabric layers tighter and reducing the risk of down possibly leaking from the edges.

[0016] Furthermore, a hidden sleeve is provided at the corner of the second and third fabric layers to cover the fasteners. The hidden sleeve is triangular in shape and includes two right-angled sides sewn to the second and third fabric layers and a beveled side connected to the second and third fabric layers by Velcro.

[0017] The triangular concealed sleeves sewn at the corners of the second and third fabric layers, with two right-angled sides sewn to the fabric layers and the diagonal sides connected by Velcro, effectively solve the problem of exposed fasteners. These concealed sleeves completely cover the corner fasteners, making the corners of the duvet cover look neater and more aesthetically pleasing, preventing exposed fasteners from affecting the visual effect. The triangular design fits the corner shape perfectly, ensuring a high degree of fit and preventing excess wrinkles. The right-angled sewn connection ensures the concealed sleeve is securely fixed and not easily detached, while the diagonal Velcro connection allows for quick opening when the positioning components need to be operated, making operation convenient. At the same time, the Velcro connection maintains the tightness of the concealed sleeve when closed, preventing accidental exposure of fasteners or snagging on the fabric, improving the user experience.

[0018] Furthermore, the length of the second fabric layer is greater than that of the third fabric layer, and the concealed fastener is located at the overlap of the second and third fabric layers, including the hook and loop fastener face on the second fabric layer and the hook and loop fastener face on the third fabric layer.

[0019] In this application, the second fabric layer is longer than the third fabric layer, and the concealed fitting is a structure where the hook and loop fastener face on the second fabric layer meets the hook and loop fastener face on the third fabric layer, which optimizes the connection effect of the duvet cover opening. The overlap formed by the second fabric layer being longer than the third fabric layer provides installation space for the concealed fitting, preventing the hook and loop fastener from being exposed and maintaining the flatness and aesthetics of the duvet cover surface. The hook and loop fastener face mating method provides a secure connection and convenient opening and closing. When it is necessary to put in or take out the down comforter, the opening can be opened quickly, saving effort and solving the problem of inconvenient opening and closing of fasteners. At the same time, the connection method of the hook and loop fastener does not produce the stiffness of metal parts, avoiding affecting the comfort of use.

[0020] Furthermore, a hidden space is formed at the overlap of the second and third fabric layers, and the hidden fitting is sewn into the hidden space by sewing thread.

[0021] The overlap between the second and third fabric layers creates a hidden space where concealed fasteners are sewn in, further enhancing the stability and concealment of the fasteners. This hidden space completely houses the fasteners, preventing them from contacting the outside and avoiding damage from friction or snagging, thus extending their lifespan and maintaining the clean and aesthetically pleasing surface of the duvet cover. The sewing method ensures the fasteners remain stable within the hidden space, preventing them from falling off due to repeated handling during use, thus guaranteeing reliable connection.

[0022] The beneficial effects of this application are: 1. The positioning components are set in the four corners of the duvet cover and the duvet body, which can quickly guide the duvet corners to align with the inner corners of the storage cavity during insertion, thereby avoiding repeated adjustments, and the duvet corners are not easy to slip off during use after being fixed. 2. The spherical positioning element makes it easier to insert into the receiving slot, reduces alignment resistance, and improves insertion efficiency. The fabric material is also elastic, which prevents the fastener from feeling stiff when in contact with the human body. At the same time, the elasticity can adapt to the slight deformation of the down comforter body during use, and can also return to its original shape after being matched with the receiving slot. This reduces the risk of the positioning structure being dislodged or damaged due to pulling, and extends its service life. 3. The triangular hidden sleeves sewn at the corners of the second and third fabric layers, with two right-angled sides sewn to the fabric layers and the oblique sides connected by Velcro, effectively solve the problem of exposed fasteners. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure of the down comforter body of the present invention; Figure 3 yes Figure 1 Enlarged view of A in the middle; Figure 4 This is a cross-sectional view of the positioning component of the present invention; Figure 5 This is a structural schematic diagram of the corner fitting process of the present invention; Figure 6 make Figure 1 A magnified view of B in the middle.

[0024] The attached figures are labeled as follows: 100, down comforter body; 200, comforter cover; 210, first fabric layer; 220, second fabric layer; 230, third fabric layer; 300, storage cavity; 400, opening; 500, positioning component; 510, fastener; 511, positioning strip; 512, positioning element; 520, receiving slot; 521, slot body; 522, reinforcing strip; 523, groove; 600, concealed fitting; 610, hook and loop fastener side; 620, hook and loop fastener side; 630, concealed space; 700, edging; 800, concealed cover; 810, Velcro. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0026] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0027] The down comforter with the stand-up lining process provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0028] Example 1: like Figures 1 to 5 As shown, this application embodiment provides a down comforter using a stand-up lining process, comprising: The down comforter body 100 has a filling layer inside; The duvet cover 200 is formed by sewing a first fabric layer 210, a second fabric layer 220 and a third fabric layer 230 along the side to form a wrap with a closed edge, wherein the second fabric layer 220 and the third fabric layer 230 are located on the same side. The inner cavity 300 is located between the first fabric layer 210, the second fabric layer 220 and the third fabric layer 230, and its size is designed to accommodate the down comforter body 100 and make it invisible. An opening 400 is provided at the overlap of the second fabric layer 220 and the third fabric layer 230, for allowing the down comforter body 100 to enter the storage cavity 300 or be taken out of the storage cavity 300. Positioning components 500 are provided inside the duvet cover 200 and on the down comforter body 100, and are used to fix the four corners of the down comforter to the four inner corners of the storage cavity. A concealed mating part 600 for connection is provided between the second fabric layer 220 and the third fabric layer 230.

[0029] In some embodiments of this application, such as Figure 1 As shown, the down comforter using the above-mentioned stand-up lining process, with its structure of the down comforter body 100 and duvet cover 200, can solve the problems of difficulty in inserting the down comforter into the duvet cover 200, difficulty in aligning the corners, and easy slippage of existing down comforters. The duvet cover 200 is a wrapping piece with a closed edge formed by sewing the first fabric layer 210, the second fabric layer 220, and the third fabric layer 230 along the side, so that the inner cavity 300 forms a receiving space, ensuring that the down comforter body 100 is completely wrapped and not exposed after being put in, improving the overall integrity; the opening 400 is set at the overlap of the second fabric layer 220 and the third fabric layer 230, which can provide a channel for taking out and putting in the down comforter body 100, reducing the obstruction when inserting or taking out.

[0030] Meanwhile, the positioning components 500 are set inside the duvet cover 200 and at the four corners of the down comforter body 100, which can quickly guide the corners of the duvet to align with the inner corners of the storage cavity 300 during insertion, thereby avoiding repeated adjustments. The corners of the duvet are not easy to slip off during use. The positioning components 500 are located in the corners and are small in size, so they will not affect the comfort during use or damage the overall appearance. In addition, the hidden mating parts 600 between the second fabric layer 220 and the third fabric layer 230 achieve the connection function without being exposed, keeping the surface of the duvet cover 200 clean.

[0031] Example 2: This application provides a down comforter with a stand-up lining process. In addition to the above-mentioned technical features, the down comforter with the stand-up lining process in this application also includes the following technical features.

[0032] like Figures 1 to 5 As shown, the positioning component 500 includes: Fasteners 510 are installed at the four corners of the down comforter body 100; The receiving slot 520 is provided on the cover 200 and can cooperate with the fastener 510 to fix the fastener 510. The fastener 510 is disposed on the surface of the down comforter body 100, and the receiving groove 520 is disposed at the corners of the second fabric layer 220 and the third fabric layer 230 corresponding to the first fabric layer 210.

[0033] In this embodiment, the cooperation between the fastener 510 and the receiving slot 520 in the positioning component 500 further optimizes the alignment and fixation of the down comforter and the duvet cover 200. The fastener 510 is installed at the four corners of the down comforter body 100, and the receiving slot 520 is correspondingly set on the duvet cover 200. The correspondence between the two allows the four corners of the comforter to quickly find their corresponding positions when the down comforter is inserted into the duvet cover 200 through the cooperation of the fastener 510 and the receiving slot 520, thereby effectively reducing the adjustment time during the insertion process and solving the problem of the difficulty in inserting large down comforters in the past. The fastener 510 is located on the surface of the down comforter body 100, and the receiving slot 520 is located at the corners corresponding to the second fabric layer 220, the third fabric layer 230 and the first fabric layer 210. This positional design ensures the stability of the fixing point, making it less likely for the corners of the comforter to shift or slip during use, while avoiding interference from the positioning structure to other areas of the down comforter body 100 or the duvet cover 200.

[0034] Example 3: This application provides a down comforter with a stand-up lining process. In addition to the above-mentioned technical features, the down comforter with the stand-up lining process in this application also includes the following technical features.

[0035] like Figures 1 to 5 As shown, fastener 510 includes: Positioning strap 511 is sewn onto the down comforter body 100; The positioning element 512 is spherical and is fixed to the positioning tape 511 by sewing thread; The fastener 510 is made of fabric and is elastic.

[0036] In this embodiment, the fastener 510 is sewn onto the down comforter body 100 using a positioning band 511, and the spherical positioning element 512 is fixed to the positioning band 511 by sewing thread. The entire structure is made of fabric and has an elastic structure, offering multiple advantages. The positioning band 511, sewn to the down comforter body 100, ensures a secure connection and prevents it from falling off during repeated use or washing, thus ensuring the durability of the positioning function. The spherical positioning element 512 allows for smoother insertion into the receiving slot 520, reducing alignment resistance and improving insertion efficiency. Furthermore, the elasticity of the fabric material prevents the fastener 510 from feeling stiff when in contact with the body, avoiding any impact on sleep comfort. Simultaneously, the elasticity accommodates slight deformation of the down comforter body 100 during use and allows it to return to its original shape after engaging with the receiving slot 520, reducing the risk of the positioning structure detaching or being damaged due to pulling and extending its service life.

[0037] Furthermore, the receiving slot 520 includes: 521 trough body, 200 through duvet cover; A reinforcing strip 522 is provided at the edge of the groove 521 and is rectangular in shape. The reinforcing strip 522 is supported by an elastic material and is used to prevent the groove 521 from tearing. The reinforcing strip 522 is provided on both sides of the cover 200, and the middle of the reinforcing strip 522 is provided with a groove 523 that communicates with the groove 521.

[0038] The receiving slot 520 features a slot body 521 that penetrates the cover 200, reinforcing strips 522 installed on the edge of the slot body 521 and distributed on both sides, and a groove 523 in the middle of the reinforcing strip 522 that communicates with the slot body 521. This structure enhances the reliability and durability of the positioning fit. The through-hole design of the slot body 521 provides a path for the insertion and removal of the spherical positioning element 512, reducing obstruction during the positioning process. The reinforcing strip 522 is made of elastic material and is rectangular, which can adapt to deformation when the positioning element 512 is inserted, thus ensuring a tight fit. It can also effectively resist the tearing force of the edge of the slot body 521 during repeated use, preventing the slot body 521 from being damaged due to wear, thereby extending the service life of the receiving slot 520. At the same time, the reinforcing strips 522 on both sides further strengthen the edge of the slot body 521, and the groove 523 in the middle provides guidance for the entry and exit of the positioning element 512, ensuring a stable fit between the fastener 510 and the receiving slot 520 and preventing it from loosening.

[0039] Example 4: This application provides a down comforter with a stand-up lining process. In addition to the above-mentioned technical features, the down comforter with the stand-up lining process in this application also includes the following technical features.

[0040] like Figure 1 , Figure 2 as well as Figure 5 As shown, the edges of the first fabric layer 210, the second fabric layer 220 and the third fabric layer 230 are all provided with binding 700. The binding 700 is folded and sewn together by itself, and the binding 700 of the first fabric layer 210 and the second fabric layer 220, as well as the binding 700 of the first fabric layer 210 and the third fabric layer 230 are also sewn together by sewing thread.

[0041] In this embodiment, the edges of the first fabric layer 210, the second fabric layer 220, and the third fabric layer 230 are all folded and sewn together with binding 700. Furthermore, the binding 700s between the first fabric layer 210 and the second fabric layer 220, and between the first fabric layer 210 and the third fabric layer 230, are also sewn together with thread, thus enhancing the overall strength of the duvet cover 200. The folded and sewn binding 700 makes the fabric edges thicker, effectively enhancing abrasion resistance and preventing edge unraveling or damage during long-term use or washing. The stitching connection between the multiple binding layers 700 further strengthens the overall structure of the duvet cover 200, making the connection between the three fabric layers tighter and reducing the risk of down possibly leaking from the edges of the duvet cover 200.

[0042] Example 5: This application provides a down comforter with a stand-up lining process. In addition to the above-mentioned technical features, the down comforter with the stand-up lining process in this application also includes the following technical features.

[0043] like Figure 1 and Figure 6 As shown, a hidden sleeve 800 is also provided at the corner of the second fabric layer 220 and the third fabric layer 230 to cover the fastener 510. The hidden sleeve 800 is triangular and includes two right-angled sides that are sewn to the second fabric layer 220 and the third fabric layer 230 and a beveled side that is connected to the second fabric layer 220 and the third fabric layer 230 by Velcro 810.

[0044] In this embodiment, the triangular concealed sleeves 800 sewn at the corners of the second fabric layer 220 and the third fabric layer 230, with their two right-angled sides sewn to the fabric layers and their beveled sides connected by Velcro 810, effectively solve the problem of exposed fasteners 510. The concealed sleeves 800 completely cover the corner fasteners 510, making the corners of the duvet cover 200 look neater and more aesthetically pleasing, preventing the exposed fasteners 510 from affecting the visual effect. The triangular design fits the corner shape perfectly, ensuring a high degree of fit and preventing excess wrinkles. The sewn connection of the right-angled sides ensures the concealed sleeves 800 are firmly fixed and not easily detached, while the Velcro 810 connection on the beveled sides allows for quick opening when the positioning component 500 needs to be operated, making operation convenient. Simultaneously, the Velcro 810 connection method maintains the tightness of the concealed sleeves 800 when closed, preventing the fasteners 510 from being accidentally exposed or snagging the fabric, thus improving the user experience.

[0045] Example 6: This application provides a down comforter with a stand-up lining process. In addition to the above-mentioned technical features, the down comforter with the stand-up lining process in this application also includes the following technical features.

[0046] like Figure 1 As shown, the length of the second fabric layer 220 is greater than that of the third fabric layer 230. The concealed mating part 600 is located at the overlap of the second fabric layer 220 and the third fabric layer 230, including the hook and loop fastener surface 610 on the second fabric layer 220 and the hook and loop fastener female surface 620 on the third fabric layer 230.

[0047] In this embodiment, the second fabric layer 220 is longer than the third fabric layer 230. The concealed mating part 600 consists of the hook and loop fastener face 610 on the second fabric layer 220 and the hook and loop fastener face 620 on the third fabric layer 230, which optimizes the connection effect of the opening 400 of the duvet cover 200. The overlap formed by the second fabric layer 220 being longer than the third fabric layer 230 provides installation space for the concealed mating part 600, preventing the hook and loop fastener from being exposed and maintaining the flatness and aesthetics of the duvet cover 200 surface. The mating method of the hook and loop fastener face and face ensures a stable connection and convenient opening and closing. When it is necessary to put in or take out the down comforter, the opening 400 can be opened quickly, saving effort and solving the problem of the inconvenience of opening and closing the fastener 510. At the same time, the connection method of the hook and loop fastener does not produce the stiffness of metal parts, avoiding affecting the comfort of use.

[0048] Furthermore, a hidden space 630 is formed at the overlap of the second fabric layer 220 and the third fabric layer 230, and the hidden fitting 600 is sewn into the hidden space 630 by a sewing thread.

[0049] The overlap between the second fabric layer 220 and the third fabric layer 230 forms a hidden space 630, within which the concealed fitting 600 is sewn, further enhancing the stability and concealment of the fastener 510. The hidden space 630 completely houses the fastener 510, preventing it from contacting the outside and avoiding damage due to friction or snagging, thus extending its service life and maintaining the neat and aesthetically pleasing surface of the duvet cover 200. The sewing method ensures the fastener 510 remains stable within the hidden space 630, preventing it from falling off due to repeated handling during use, thus guaranteeing the reliability of the connection.

[0050] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0051] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A quilt of the standing-walled process, characterized by: The utility model relates to a quilt set, which comprises: a quilt body (100) provided with a filling layer inside; a quilt cover (200) formed by sewing a first fabric layer (210), a second fabric layer (220) and a third fabric layer (230) along the side edges to form a wrapping piece with a closed edge, wherein the second fabric layer (220) and the third fabric layer (230) are located on the same side; a storage cavity (300) provided between the first fabric layer (210), the second fabric layer (220) and the third fabric layer (230) and sized to accommodate the quilt body (100) and make it invisible; an opening (400) provided at the overlapping part of the second fabric layer (220) and the third fabric layer (230) for the quilt body (100) to enter or be taken out of the storage cavity (300); a positioning assembly (500) provided in the quilt cover (200) and on the quilt body (100) for fixing the four corners of the quilt in the four inner corners of the storage cavity; wherein the second fabric layer (220) and the third fabric layer (230) are provided with a hidden matching piece (600) for connection.

2. A duvet according to claim 1, characterized in that: The positioning assembly (500) comprises: fasteners (510) provided at the four corners of the quilt body (100); receiving grooves (520) provided on the quilt cover (200) and capable of cooperating with and fixing the fasteners (510); wherein the fasteners (510) are provided on the surface of the quilt body (100), and the receiving grooves (520) are provided at the corresponding corners of the second fabric layer (220) and the third fabric layer (230) and the first fabric layer (210).

3. A duvet according to claim 2, characterised in that: The fasteners (510) comprise: positioning bands (511) sewn on the quilt body (100); positioning elements (512) in the shape of a ball and fixed on the positioning bands (511) by sewing thread; wherein the fasteners (510) are composed of fabric and have elasticity.

4. A duvet according to claim 3, characterised in that: The receiving grooves (520) comprise: groove bodies (521) penetrating through the quilt cover (200); reinforcing strips (522) provided at the edges of the groove bodies (521) and in the shape of a rectangle, which are supported by elastic material and used to prevent the groove bodies (521) from tearing; wherein the reinforcing strips (522) are provided on both sides of the quilt cover (200), and the middle part of each reinforcing strip (522) is provided with a slot (523) in communication with the groove body (521).

5. A duvet according to claim 4, characterised in that: The edges of the first fabric layer (210), the second fabric layer (220) and the third fabric layer (230) are provided with a hem (700), which is folded and sewn together, and the hems (700) of the first fabric layer (210) and the second fabric layer (220) and the first fabric layer (210) and the third fabric layer (230) are also sewn together by sewing thread.

6. A duvet according to claim 5, characterised in that: The corner of the second fabric layer (220) and the third fabric layer (230) is further provided with a hidden sleeve (800) for covering the fastener (510), and the hidden sleeve (800) is triangular, including two right angle edges connected with the second fabric layer (220) and the third fabric layer (230) by sewing, and an oblique edge connected with the second fabric layer (220) and the third fabric layer (230) by the magic tape (810).

7. A duvet according to claim 1, characterized in that: The length of the second fabric layer (220) is greater than that of the third fabric layer (230), and the hidden matching piece (600) is located at the overlapping part of the second fabric layer (220) and the third fabric layer (230), including a Velcro sub-surface (610) located on the second fabric layer (220) and a Velcro mother surface (620) located on the third fabric layer (230).

8. A duvet according to claim 7, characterised in that: The overlapping part of the second fabric layer (220) and the third fabric layer (230) forms a hidden space (630), and the hidden matching piece (600) is sewn in the hidden space (630) by sewing thread.