Heat-storage warm-keeping down quilt core
By setting up a spherical crown-shaped expansion zone on the upper layer of the down duvet core and a cross-length lining strip on the lower layer, multiple warm areas are separated, which solves the problem of insufficient filling space inside the down duvet core and significantly improves the warmth effect of the down duvet.
Patent Information
- Application Number
- CN202422320071.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-23
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-09-23
AI Technical Summary
The existing down quilts have poor warming effect, mainly due to the limited filling space inside the quilt core, which makes the down unable to stretch effectively and the ability to fix the air is insufficient.
The heat storage and warm down duvet core design is used. By setting multiple expansion zones in the shape of a spherical crown on the upper layer and setting crossed vertical lining strips on the lower layer, multiple rectangular warm areas are separated. The two are connected, providing a larger filling space and a better stretching space.
The down quilt is filled and warm, and the down quilt is improved, and the air is better expanded and fixed, forming a warm layer that effectively prevents heat loss.
Smart Images
Figure CN223025762U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bedding products, in particular to a heat-storing and warm-keeping down quilt core. Background Art
[0002] Down quilts are filled with down and are the softest and warmest quilt core category among bedding products. With its excellent warmth retention, lightness and breathability, down quilts have become the first choice for more and more people who seek high-quality sleep. Currently, the styles and processing techniques of down quilts on the market are mostly based on cut-through quilting, which wraps the down in two layers of fabric through quilting to form a down quilt.
[0003] The cut-through quilting process is to directly sew two layers of fabric together. The cross-section of the quilt core is flat, which greatly reduces the space inside the quilt, making the filling space inside the quilt core limited, which in turn leads to poor warmth retention effect of the down quilt. Utility Model Content
[0004] The utility model aims to provide a heat-storing and warm-keeping down quilt core, which can improve the warm-keeping effect of the down quilt.
[0005] The embodiment of the utility model is achieved as follows:
[0006] In a first aspect, the utility model provides a heat-storing and warm-keeping down quilt core, comprising:
[0007] The lower layer, the lower layer is set flat;
[0008] Vertical lining strips are cross-arranged on the lower layer, and the vertical lining strips separate a plurality of rectangular warm-keeping areas on the lower layer;
[0009] An upper layer, the upper layer is connected to the side of the vertical lining strip facing away from the lower layer, the upper layer is arched at multiple locations to form multiple expansion areas in a spherical crown shape, and the multiple expansion areas correspond to and are connected to the multiple warm-keeping areas one by one;
[0010] The edge of the lower layer is connected to the edge of the upper layer; the thermal insulation area and the expansion area are filled with thermal insulation materials.
[0011] In an optional embodiment, the warm-keeping areas are arranged in 6 columns along the width direction of the lower layer, and the warm-keeping areas are arranged in 8 rows along the length direction of the lower layer.
[0012] In an optional embodiment, the warm keeping areas are arranged in 8 columns along the width direction of the lower layer and in 9 rows along the length direction of the lower layer.
[0013] In an optional embodiment, the warm keeping areas are arranged in 9 columns along the width direction of the lower layer and in 10 rows along the length direction of the lower layer.
[0014] In an alternative embodiment, single-sided pleats are provided at positions opposite to the four edges of the plurality of expansion zones on the upper layer.
[0015] In an alternative embodiment, the pleating directions of the single-sided pleats on the four edges of the same expansion zone are in the clockwise or counterclockwise direction.
[0016] In an alternative embodiment, the pleating width of the single-sided pleats is 0.5 cm - 10 cm.
[0017] In an alternative embodiment, the edge of the upper layer is stitched or connected in a standing height style to the edge of the lower layer, and the standing height is 1 cm - 10 cm.
[0018] In an alternative embodiment, the thermal insulation material includes one or more of grey goose down, grey duck down, white goose down, and white duck down.
[0019] The beneficial effects of the embodiments of the present utility model include:
[0020] 1. The duvet core provided in the present application has expansion zones provided on the upper layer. While increasing the filling amount of down in the duvet, it provides a better stretching space for the thermal insulation material filled in the thermal insulation zone, enabling the fluff filaments of the thermal insulation material to unfold better, facilitating the fixation of the fluff filaments to store more air, thereby enhancing the heat storage and insulation effect of the core.
[0021] 2. In the present application, the upper layer arches into a spherical crown shape, and the spherical crown shape can evenly disperse stress, enhancing the stability of the overall structure, making it difficult for the arch of the upper layer to collapse, and ensuring that the upper expansion zone of the duvet can always play an effective role during use. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present utility model, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.
[0023] Figure 1 Is a cross-sectional view of the structure of an existing cut-through process duvet;
[0024] Figure 2 Is a cross-sectional view of the structure of an existing square grid standing lining process duvet;
[0025] Figure 3 Is a cross-sectional view of the structure of the duvet in the first embodiment of the present utility model;
[0026] Figure 4 Is a partial schematic view of the pleating direction of the upper layer in the embodiments of the present utility model;
[0027] Figure 5 This is a cross-sectional view of the structure of the duvet in the second embodiment of the present utility model.
[0028] Icon:
[0029] 110 - Upper fabric; 120 - Lower fabric; 130 - Standing lining fabric; 210 - Lower layer; 220 - Standing lining strip; 230 - Upper layer; 240 - Warmth retention area; 250 - Inflation area; 310 - Single-sided pleat; 410 - Inflatable tube; 420 - Inflation / deflation nozzle. Detailed implementation manners
[0030] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. Generally, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.
[0031] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.
[0032] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0033] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model.
[0034] In addition, terms such as "horizontal" and "vertical" do not mean that the components are required to be absolutely horizontal or hanging vertically, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.
[0035] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0036] At present, the duvet has become the lightest and warmest quilt core category in bedding. The duvet is highly regarded for its excellent warmth retention, lightness, and breathability. The good warmth retention of the duvet is because its filling, down, has a unique spherical fiber structure. Each down filament is composed of many overlapping scales, and each scale is hollow. This hollow scale structure enables down to hold a large amount of static air. Air itself does not conduct heat, and down also hinders air convection, so down forms a natural heat insulation and warming barrier outside the human body to block the flow of hot and cold air. Based on this, the warmth retention effect of down is mainly related to the filling amount of down and the loftiness of down.
[0037] Most of the common styles and processes of duvets on the market at present are mainly square quilting and through-cut. Both of these processes form a duvet by quilting down between two layers of fabric. Among them, please refer to Figure 1 , for the through-cut process duvet, the upper layer of fabric 110 is directly stitched to the lower layer of fabric 120, and the cross-sectional shape of the duvet finished product is flat. This makes the filling space inside the duvet small, the filling amount of the duvet small, and at the same time, the down cannot be effectively stretched inside the flat quilt core, resulting in a poor warmth retention performance of the duvet finished product. For the duvet with the square quilting process, please refer to Figure 2 , the duvet with the quilting process improves the defect of the spatial shape of the through-cut process by adding a quilting fabric 130 at the quilting position of the quilt core, making the cross-sectional shape of the quilt core rectangular. However, in the quilting process, although the filling space inside the duvet is increased compared with the through-cut process, limited by the cross-sectional size of the duvet of the quilt core, the filling space of the duvet core is also limited.
[0038] In view of the above situation, the present application provides a heat storage and warmth retention duvet core, which is used to increase the filling amount of the duvet core and improve the stretching effect of the down, thereby improving the warmth retention effect of the duvet. The following combines Figures 3 - 5 to introduce in detail the basic structure, working principle, and technical effects achieved by the heat storage and warmth retention duvet core provided by the present application.
[0039] First Embodiment
[0040] Please refer to Figure 3 , Figure 3This is a schematic cross-sectional view of the down comforter core in the first embodiment of the present application. As Figure 3 shown, the heat storage and warm-keeping down comforter core in the first embodiment includes a lower layer 210 and an upper layer 230. The lower layer 210 is arranged horizontally and flatly, and the length and width dimensions of the lower layer 210 correspond to the designed length and width dimensions of the down comforter. The upper layer 230 is opposite to the lower layer 210, and the edges of the upper layer 230 are connected to the edges of the lower layer 210, so that the upper layer 230 and the lower layer 210 form the overall framework of the down comforter core, and a space for filling with down is formed between the upper layer 230 and the lower layer 210. The fabrics used for the upper layer 230 and the lower layer 210 are one or more of pure cotton fabric, polyester-cotton fabric, and all-polyester fabric. In this embodiment, the edges of the upper layer 230 and the lower layer 210 are connected by a standing height style. According to different usage scenarios of the down comforter core, the designed height of the standing height is 1 cm - 10 cm; in other embodiments, the edges of the upper layer 230 can also be directly sewn and connected to the edges of the lower layer 210.
[0041] Please refer to Figure 3 , in this embodiment, the heat storage and warm-keeping down comforter core further includes standing lining strips 220. The standing lining strips 220 are strip-shaped objects with a certain width. A plurality of standing lining strips 220 are arranged on the lower layer 210, and the plurality of standing lining strips 220 are arranged in a cross pattern horizontally and vertically. The cross-arranged standing lining strips 220 divide the lower layer 210 into a plurality of warm-keeping areas 240, and the plurality of warm-keeping areas 240 are all rectangular and have the same size. The upper layer 230 is sewn and connected to the side of the plurality of standing lining strips 220 away from the lower layer 210. Therefore, the plurality of cross-standing lining strips 220 also divide the upper layer 230 into a plurality of areas corresponding to the warm-keeping areas 240. The areas of the upper layer 230 corresponding to the plurality of warm-keeping areas 240 all arch away from the lower layer 210, and thus a plurality of spherical crown-shaped expansion areas 250 are formed on the upper layer 230. The plurality of expansion areas 250 correspond to and communicate with the plurality of warm-keeping areas 240 one by one.
[0042] The fabric used for the standing lining strips 220 is one of polyester fabric, pure cotton fabric, cotton wheel fabric, etc. A heat-preserving material is filled in each of the warm-keeping areas 240 and the expansion areas 250. The heat-preserving material includes one or several of grey goose down, grey duck down, white goose down, and white duck down.
[0043] Compared with the traditional square lining technology of the down quilt, the down quilt core in the first embodiment of the present application is provided with an expansion zone 250 that is arched on the upper layer 230 to form a spherical crown shape. The setting of the expansion zone 250 enlarges the volume of the warm-keeping zone 240 in disguised form, thereby increasing the filling amount of the down quilt core. At the same time, when there is enough down in the warm-keeping zone 240, the space in the upper expansion zone 250 can provide a better stretching space for the thermal insulation material, so that the down fibers of the thermal insulation material can be better unfolded. The fully stretched thermal insulation material is used to store and fix more air, and form a thermal insulation layer that effectively prevents heat loss, thereby improving the heat storage and heat preservation effect of the entire quilt core.
[0044] Furthermore, the arch on the upper layer 230 is in a spherical crown shape. The spherical crown geometry enables it to evenly disperse stress when subjected to external loads, thereby improving the overall structural strength, making the arch on the upper layer 230 less likely to collapse, thereby avoiding to a certain extent the volume of the expansion zone 250 from being compressed and affecting the expansion of the down.
[0045] Due to different usage scenarios of users, the design size of the duvet core is also different. Based on this, in the present embodiment, between the upper layer 230 and the lower layer 210, the warm-keeping zone 240 is sequentially arranged with 6 columns along the width direction of the lower layer 210, and the warm-keeping zone 240 is sequentially arranged with 8 rows along the length direction of the lower layer 210. In other embodiments, the warm-keeping zone 240 is sequentially arranged with 8 columns along the width direction of the lower layer 210, and the warm-keeping zone 240 is sequentially arranged with 9 rows along the length direction of the lower layer 210. Furthermore, the warm-keeping zone 240 can also be set to have 9 columns along the width direction of the lower layer 210, and the warm-keeping zone 240 is sequentially arranged with 10 rows along the length direction of the lower layer 210. By setting different numbers of warm-keeping zones 240, the size of the duvet is adjusted to meet the needs of different users and improve the applicability of the product.
[0046] To machine a spherical crown shaped arch on the upper layer 230, please refer to Figure 4 On the upper layer 230, single-side pleats 310 are arranged opposite to the four edges of the plurality of expansion zones 250. The single-side pleats 310 are pleated toward one side of the fabric. The pleating direction of the corresponding single-side pleats 310 on the four edges of the same expansion zone 250 is in a clockwise or counterclockwise direction. By pleating along the four edges of the expansion zone 250 on the upper layer 230 in a clockwise or counterclockwise direction, the top of the expansion zone 250 is arched in a spherical crown shape, providing a larger filling space for the duvet.
[0047] Further, the width of the single-sided pleat 310 for pleating is 0.5 cm - 10 cm, that is, the minimum width of the single-sided pleat 310 is 0.5 cm and the maximum width of the single-sided pleat 310 is 10 cm. Since the pleating process is performed on the upper layer 230, the fabric area of the upper layer 230 is 105% - 150% of the fabric area of the lower layer 210, and the part of the fabric of the upper layer 230 that is more than the fabric of the lower layer 210 is the pleating part necessary for the pleating process.
[0048] The working principle of the heat storage and thermal insulation down comforter core in the first embodiment of the present application is as follows: A spherical crown-shaped expansion area 250 is provided at the top of each square thermal insulation area 240. When enough down is filled in the thermal insulation area 240, at the same filling amount of down, the expansion area 250 on the upper layer can give a better expansion space to the thermal insulation material, so that the down filaments of the thermal insulation material can be better unfolded to store and fix more air, and form a thermal insulation layer that effectively prevents heat dissipation, thereby improving the heat storage and thermal insulation effect of the entire comforter core.
[0049] Second Embodiment
[0050] The heat storage and thermal insulation down comforter core provided in this embodiment includes a lower layer 210, an upper layer 230, and vertical lining strips 220. The vertical lining strips 220 divide a plurality of thermal insulation areas 240 on the lower layer 210, and a plurality of spherical crown-shaped expansion areas 250 communicating with the thermal insulation areas 240 are formed on the upper layer 230.
[0051] During the actual use of the down comforter, under the action of the self-weight of the fabric of the upper layer 230, the spherical crown-shaped arch on the upper layer 230 may collapse downward. At the same time, the down comforter may be externally squeezed during use, which will also cause the spherical crown-shaped arch on the upper layer 230 to collapse, thereby compressing the space of the expansion area 250 and affecting the unfolding of the down filaments of the filling material in the thermal insulation area 240, and further affecting the thermal insulation effect of the down comforter.
[0052] Based on this, please refer to Figure 5 , the difference between this embodiment and the first embodiment is that: an air charging pipe 410 is adhesively attached to the side of the upper layer 230 facing the lower layer 210. The air charging pipe 410 is formed by adhesively bonding the two sides of two relatively arranged plastic films. The air charging pipe 410 is cross-laid on the upper layer 230, and the air charging pipe 410 is arranged in a cross shape at the top of each expansion area 250. An air charging and discharging nozzle 420 is provided on one side of the down comforter core, and the air charging and discharging nozzle 420 is communicated with the air charging pipe 410, and the air charging pipe 410 is charged and discharged through the air charging and discharging nozzle 420.
[0053] When the inflatable tube 410 is not inflated, the inflatable tube 410 is in a film shape and adheres to the upper layer 230, without affecting the normal folding, storage, packaging and transportation of the quilt core. After the inflatable tube 410 is filled with gas, the inflatable tube 410 forms an arc-shaped air column adhering to the upper layer 230, so as to support the upper layer 230 through the inflatable tube 410, enabling the upper layer 230 to always maintain an arched shape during use, and further enabling the filling material in the heat preservation area 240 to have sufficient expansion space, improving the heat preservation effect of the duvet.
[0054] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A heat-storing and warm-keeping down quilt core, characterized in that: include: A lower layer, the lower layer is arranged flat; Vertical lining strips, which are cross-arranged on the lower layer, and the vertical lining strips separate a plurality of rectangular warm-keeping areas on the lower layer; An upper layer, the upper layer is connected to a side of the vertical lining strip away from the lower layer, the upper layer is arched at multiple locations to form multiple expansion areas in a spherical crown shape, and the multiple expansion areas correspond to and are connected to the multiple warm-keeping areas one by one; Wherein, the edge of the lower layer is connected to the edge of the upper layer; and the thermal insulation area and the expansion area are filled with thermal insulation materials.
2. The heat-storage and warmth-retaining duvet core according to claim 1, characterized in that: The warm-keeping areas are arranged in 6 columns along the width direction of the lower layer, and the warm-keeping areas are arranged in 8 rows along the length direction of the lower layer.
3. The heat-storage and warmth-retaining duvet core according to claim 1, characterized in that: The warm keeping areas are arranged in 8 columns along the width direction of the lower layer and in 9 rows along the length direction of the lower layer.
4. The heat-storing and warm-keeping duvet core according to claim 1, characterized in that: The warm keeping areas are arranged in 9 columns along the width direction of the lower layer and in 10 rows along the length direction of the lower layer.
5. The heat-storage and warmth-retaining duvet core according to claim 1, characterized in that: Single-side pleats are arranged on the upper layer at positions opposite to the four edges of the plurality of expansion zones.
6. The heat-storing and warm-keeping down quilt core according to claim 1, characterized in that: The pleating direction of the single-side pleats on the four edges of the same expansion zone is along the clockwise or counterclockwise direction.
7. The heat-storage and warmth-retaining duvet core according to claim 6, characterized in that: The pleating width of the single-side pleats is 0.5cm-10cm.
8. The heat-storing and warm-keeping down quilt core according to claim 1, characterized in that: The edge of the upper layer is connected to the edge of the lower layer by sewing or by standing up, and the height of the standing up is 1cm-10cm.
9. The heat-storing and warm-keeping down quilt core according to claim 1, characterized in that: The thermal insulation material includes one or more of grey goose down, grey duck down, white goose down and white duck down.