Breast pad
By combining a breathable layer with a support structure in the breast pad, a breathable channel is formed and the breast is supported, solving the breathability and weight problems of existing breast pads and achieving both breathability and lightweight effect.
Patent Information
- Application Number
- CN202520518052.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-03-21
AI Technical Summary
Existing bra pads are inadequate in terms of breathability and weight, especially sponge and film bag type bra pads, which are easily damaged after washing, have poor shaping ability, poor breathability, and are relatively heavy.
Design a breast pad that combines a breathable layer with a support structure. The breathable layer has ventilation holes and is supported by the support structure. An air layer is formed between the breathable layers. The support structure is elastic. The surface of the breathable layer is designed with convex and concave surfaces to fit the bra. The support structure has a hollow design to improve breathability and lightness.
It significantly improves the breathability and support of the breast pads, achieves a lightweight design, maintains breast shape, and enhances wearing comfort.
Smart Images
Figure CN223943830U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to clothes accessory technical field more specifically, it relates to a chest pad. BACKGROUND
[0002] The current underwear chest pad can be divided into four categories according to material: sponge, non-woven fiber cotton, thin film bag built-in filler and thin film coated ordinary organic silicone gel chest pad. Among them, the sponge and non-woven fiber cotton have high deformation degree, poor plasticity and are easy to be damaged after washing, and the air permeability is general. The thin film bag built-in filler and the thin film coated ordinary organic silicone gel chest pad perform worse in air permeability and are heavier. SUMMARY
[0003] The utility model aims at overcoming at least one of the defects of the prior art, providing a chest pad to solve the problems of poor air permeability and excessive product weight.
[0004] The utility model takes the technical scheme, proposes a kind of chest pad, including the air-permeable layer being arranged in a plurality of along a preset direction, the air-permeable layer is all densely arranged with multiple air-permeable holes, adjacent air-permeable layer between all has air layer, the air layer in all is equipped with the support structure for supporting corresponding air-permeable layer, the support structure has elasticity;
[0005] The air-permeable layer at least includes the surface air-permeable layer and the inner air-permeable layer being arranged in the two opposite outermost sides of the preset direction, the periphery edge of the surface air-permeable layer is connected with the periphery edge of the inner air-permeable layer, to make the internal space of chest pad between the surface air-permeable layer and the inner air-permeable layer, the air layer, the support structure are all arranged in the internal space;
[0006] Among them, the surface of the surface air-permeable layer outward is convex, the surface of the inner air-permeable layer outward is concave.
[0007] In the scheme, by the convex surface of surface air-permeable layer, the concave surface of inner air-permeable layer design and the support structure with elasticity between surface air-permeable layer and inner air-permeable layer, chest pad can be fitted in bra, and basic functions such as supporting and keeping chest shape are played to chest, and based on the hollow design of support structure and the air-permeable hole densely arranged in air-permeable layer, air-permeable channel can be formed, the air permeability of chest pad is significantly improved, and lightweight design of chest pad is realized.
[0008] In some embodiments, the air-permeable layer is a flexible layer or an elastic layer.
[0009] In some embodiments, the air-permeable layer and the support structure are integrally formed.
[0010] In some embodiments, the air-permeable hole is any one or more of hexagon, circle, heart shape and drop shape.
[0011] Preferably, the air permeable holes are hexagonal.
[0012] In this scheme, the hexagonal design can improve the air permeable hole setting density of the inner air permeable layer and the surface air permeable layer, thereby improving the air permeability, and the hexagonal design also improves the structural strength of the inner air permeable layer and the surface air permeable layer, and has better compression resistance and resilience.
[0013] In some embodiments, the surface air permeable layer and the inner air permeable layer each adopt an arc surface with different radii, the arc top of the surface air permeable layer is oriented in the same direction as the arc top of the inner air permeable layer, and the four peripheral edges of the surface air permeable layer and the four peripheral edges of the inner air permeable layer are abutted and combined.
[0014] The arc top of the surface air permeable layer is raised away from the internal space, so that the surface of the surface air permeable layer facing away from the internal space forms the convex surface, and the arc top of the inner air permeable layer is raised toward the internal space, so that the surface of the inner air permeable layer facing away from the internal space forms the concave surface.
[0015] In this scheme, the four peripheral edges of the surface air permeable layer and the four peripheral edges of the inner air permeable layer can be directly abutted and combined, without the need to set an additional connecting structure, which helps to maintain a small distance between the surface air permeable layer and the inner air permeable layer, helps to achieve the purpose of lightweight design of the chest pad, and at the same time, simplifies the structure of the chest pad, saves materials, and avoids the connection structure from hindering the flow of gas, so that the chest pad can maintain good air permeability.
[0016] In some embodiments, the air permeable layer further comprises at least one intermediate air permeable layer arranged in the internal space,
[0017] The four peripheral edges of the intermediate air permeable layer are connected with the four peripheral edges of the surface air permeable layer and the four peripheral edges of the inner air permeable layer, or the four peripheral edges of the intermediate air permeable layer are connected with the surface of the surface air permeable layer facing the internal space, or the four peripheral edges of the intermediate air permeable layer are connected with the surface of the inner air permeable layer facing the internal space.
[0018] In some embodiments, the intermediate air permeable layer, the surface air permeable layer, and the inner air permeable layer each adopt an arc surface with the same arc top, wherein the radii of the surface air permeable layer and the inner air permeable layer are different, the four peripheral edges of the surface air permeable layer and the four peripheral edges of the inner air permeable layer are abutted and combined, and the four peripheral edges of the intermediate air permeable layer are abutted and combined with the four peripheral edges of the surface air permeable layer and the four peripheral edges of the inner air permeable layer, or the four peripheral edges of the intermediate air permeable layer are connected with the surface of the inner air permeable layer facing the internal space.
[0019] In some embodiments, the intermediate air-permeable layer, the surface air-permeable layer, and the back air-permeable layer each adopt an arc surface with different radii, or the intermediate air-permeable layer, the surface air-permeable layer, and the back air-permeable layer each adopt an arc surface with different radii,
[0020] The four peripheral edges of the intermediate air-permeable layer, the four peripheral edges of the surface air-permeable layer, and the four peripheral edges of the back air-permeable layer are abutted and combined.
[0021] In this scheme, the surface air-permeable layer, the intermediate air-permeable layer, and the back air-permeable layer can be directly abutted and combined through the four peripheral edges, facilitating the full spreading of each air-permeable layer, helping the chest pad as a whole to realize lightweight design, and each air-permeable layer and each air layer can have a larger surface area in the preset direction, while the support structure can also be arranged in a larger space, thereby improving the air permeability, support strength, and resilience.
[0022] In some embodiments, the surface air-permeable layer adopts a first arc surface, the back air-permeable layer adopts a second arc surface, the top of the first arc surface is oriented in the same direction as the top of the second arc surface but has a different radius, and the four peripheral edges of the first arc surface are abutted and combined with the four peripheral edges of the second arc surface.
[0023] The intermediate air-permeable layer includes at least one third arc surface arranged in the preset direction, the top of the third arc surface is oriented in the opposite direction of the top of the first arc surface and the top of the second arc surface, and the four peripheral edges of the third arc surface are connected to the surface of the surface air-permeable layer facing the internal space.
[0024] In this scheme, the third arc surface itself can provide a certain support force when the surface air-permeable layer and the back air-permeable layer are contracted, thereby accelerating the resilience of the chest pad.
[0025] In some embodiments, the surface air-permeable layer adopts a fourth arc surface, the back air-permeable layer adopts a fifth arc surface, the top of the fourth arc surface is oriented in the same direction as the top of the fifth arc surface, and the fourth arc surface and the fifth arc surface have different radii, and the four peripheral edges of the fourth arc surface are abutted and combined with the four peripheral edges of the fifth arc surface.
[0026] The intermediate air-permeable layer includes at least one flat surface arranged in the preset direction, and the four peripheral edges of the flat surface are connected to the surface of the surface air-permeable layer facing the internal space.
[0027] In this scheme, the intermediate air-permeable layer in the form of a flat surface can provide a certain support function when the surface air-permeable layer and the back air-permeable layer are contracted, avoiding excessive compression of the chest pad and a decrease in resilience.
[0028] In some embodiments, each of the support structures comprises a plurality of elastic support members, each of which supports a corresponding adjacent air-permeable layer.
[0029] In this scheme, by setting multiple independent support members, it is easy to obtain a hollow support structure by setting the support members apart or staggered, to ensure the gas flow between the air-permeable layers, and to easily set uniformly to make the support strength and resilience of the chest pad at each position uniform.
[0030] In some embodiments, the air-permeable holes are each supported by at least one of the support members around the air-permeable holes.
[0031] Since the air-permeable layer has reduced strength at the position of the air-permeable hole, this scheme sets a support member corresponding to the air-permeable hole to improve the support strength of the air-permeable layer, while also improving the elasticity of the chest pad to better maintain the chest shape.
[0032] In some embodiments, the support members are elastic rod members, and the two ends of each rod member are connected to adjacent air-permeable layers.
[0033] In some embodiments, the air-permeable holes are each supported by a plurality of rod members arranged uniformly around the air-permeable holes.
[0034] This scheme can further improve the support strength and resilience of the chest pad.
[0035] Compared with the prior art, the utility model has the advantages that:
[0036] By designing the convex surface of the outer air-permeable layer and the concave surface of the inner air-permeable layer, and setting elastic support structures between each adjacent air-permeable layer, the chest pad can be fitted behind the bra to support the chest and maintain the basic function of the chest shape, and based on the hollow design of the support structure and the air-permeable holes densely arranged on the air-permeable layer, a gas-permeable channel can be formed between the outer air-permeable layer and the inner air-permeable layer, significantly improving the air-permeability of the chest pad, and helping to lighten the overall structure.
[0037] By setting the middle air-permeable layer, the support capacity and resilience of the chest pad can be increased; by setting a support member corresponding to the position of the air-permeable hole, the structural strength and resilience of the chest pad can be improved, and a hollow support structure can be easily obtained to ensure air permeability and lightweight design. BRIEF DESCRIPTION OF DRAWINGS
[0038] Figure 1 The utility model is a structural diagram.
[0039] Figure 2 The utility model is a sectional view.
[0040] Reference numerals: 1. Outer breathable layer; 2. Inner breathable layer; 3. Middle breathable layer (not shown); 4. Air layer; 5. Supporting structure; 6. Supporting component. Detailed Implementation
[0041] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this invention. To better illustrate the following embodiments, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.
[0042] Furthermore, in this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0043] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.
[0044] Example 1
[0045] like Figures 1-2 As shown, this embodiment proposes a breast pad, including several breathable layers arranged along a preset direction. Each breathable layer is densely provided with multiple breathable holes 3. There is an air layer 4 between adjacent breathable layers. Each air layer 4 is provided with a support structure 5 for supporting the corresponding breathable layer. The support structure 5 is elastic. Specifically, the preset direction can be a front-back direction, a top-bottom direction, or a left-right direction, or any other arbitrarily determined direction. That is, several breathable layers are arranged along the same direction. The thickness of the breast pad is formed between the two outermost breathable layers. The breathable layers cooperate with the support structure 5 to make the breast pad present a multi-layer structure in which a support structure 5 is sandwiched between each pair of adjacent breathable layers.
[0046] Continue to refer to Figure 2, the air-permeable layer at least comprises a surface air-permeable layer 1 and a back air-permeable layer 2 arranged at two opposite outermost sides of the preset direction respectively, the four peripheral edges of the surface air-permeable layer 1 are connected with the four peripheral edges of the back air-permeable layer 2, and the space between the surface air-permeable layer 1 and the back air-permeable layer 2 forms an internal space of the chest pad, the air layer 4 and the support structure 5 are arranged in the internal space; that is, the thickness of the chest pad is formed between the surface air-permeable layer 1 and the back air-permeable layer 2.
[0047] In the use, the concave surface of the back air-permeable layer 2 can cooperate with the arched convex of the bra when the chest pad is installed on the bra, so as to achieve the purpose of stable assembly.
[0048] In the specific implementation, the air-permeable layer adopts a flexible layer structure or an elastic layer structure, so that the chest pad as a whole has a certain elastic deformation capability to achieve the purpose of maintaining the chest shape and wearing comfort. In the specific implementation, in order to simplify the processing process, the air-permeable layer and the support structure 5 are obtained by one-piece forming of the chest pad, preferably, a 3D printing method is adopted to achieve the purpose of one-piece forming, so that the connection strength between the air-permeable layer and the support structure 5 is high, the overall structure of the chest pad is reliable, and the chest pad can withstand repeated elastic deformation in the use process.
[0049] It is easy to understand that by designing the convex surface of the surface air-permeable layer 1 and the concave surface of the back air-permeable layer 2 and arranging the elastic support structure 5 between the adjacent air-permeable layers, the chest pad can be fitted on the bra, and the chest can be supported and the basic function of maintaining the chest shape is achieved. Based on the hollow design of the support structure 5 and the air-permeable holes 3 densely arranged in the air-permeable layer, a ventilation channel can be formed between the surface air-permeable layer 1 and the back air-permeable layer 2, which significantly improves the ventilation performance of the chest pad and helps the skin of the wearer to cool down quickly. At the same time, since the air-permeable layer is densely arranged with air-permeable holes, and the support structure adopts a hollow design, the overall weight of the chest pad can be reduced, and the lightweight design of the chest pad is promoted.
[0050] In the specific implementation, the air-permeable holes 3 can adopt any one of a hexagon, a circle, a heart shape and a water drop shape, or any two or more shapes of the air-permeable holes 3 can be arranged on the same air-permeable layer.
[0051] In particular, the air holes 3 are all hexagonal in design. Studies have shown that hexagons can provide the maximum strength with the least amount of material, while the space utilization is high, and the arrangement of hexagons is more compact, and under the same area condition, the number of holes can be more without affecting the overall strength of the material. Compared with circular or square, the gap between hexagons is smaller, it is easy to understand, under the same area condition, the total area of the hexagonal air holes 3 is larger, the air permeability is better, and because the hollow area is larger, it is helpful to realize the lightweight design. As can be seen, by adopting the hexagonal air holes 3, the air hole 3 setting density of the air permeable layer can be improved, the air permeability is improved, and the structural strength of the air permeable layer is also improved, so that the chest pad has strong compression resistance and good rebound performance, thereby better maintaining the chest shape and having good use comfort.
[0052] Reference Figure 2 In some embodiments, the surface air permeable layer 1 and the inner air permeable layer 2 adopt arc surfaces with different radii, the arc top of the surface air permeable layer 1 is oriented in the same direction as the arc top of the inner air permeable layer 2, and the four peripheral edges of the surface air permeable layer 1 and the four peripheral edges of the inner air permeable layer 2 are in abutting connection; wherein the arc top of the surface air permeable layer 1 is convex away from the interior space, so that the surface of the surface air permeable layer 1 away from the interior space forms a convex surface, and the arc top of the inner air permeable layer 2 is convex toward the interior space, so that the surface of the inner air permeable layer 2 away from the interior space forms a concave surface.
[0053] In specific implementation, the four peripheral edges of the surface air permeable layer 1 and the four peripheral edges of the inner air permeable layer 2 are in abutting connection by adhesion or one-piece forming, and no additional connecting structure is needed between the four peripheral edges of the surface air permeable layer 1 and the four peripheral edges of the inner air permeable layer 2. Or only a connecting structure occupying very small space is needed to reinforce the four peripheral edges of the surface air permeable layer 1 and the four peripheral edges of the inner air permeable layer 2, so that the overall structure is compact, the connection strength is high, and the air permeability between the surface air permeable layer 1 and the inner air permeable layer 2 is good.
[0054] As can be easily understood, the four peripheral edges of the surface air permeable layer 1 and the four peripheral edges of the inner air permeable layer 2 can be directly in abutting connection without the need for additional connecting structure, which helps to simplify the structure of the chest pad, save materials, and avoid the connecting structure hindering the flow of gas, thereby maintaining good air permeability.
[0055] In some embodiments, the air permeable layer further comprises a middle air permeable layer arranged in the interior space, and the middle air permeable layer is provided with at least one layer along a predetermined direction, at this time, the surface air permeable layer 1 and the adjacent middle air permeable layer, and the inner air permeable layer 2 and the adjacent middle air permeable layer are provided with a support structure 5; or,
[0056] The support structure 5 is arranged between the adjacent middle air permeable layers, the surface air permeable layer 1 and the adjacent middle air permeable layer, and the inner air permeable layer 2 and the adjacent middle air permeable layer;
[0057] The four peripheral edges of the intermediate air-permeable layer are connected with the four peripheral edges of the surface air-permeable layer 1 and the four peripheral edges of the back air-permeable layer 2, or the four peripheral edges of the intermediate air-permeable layer are connected with the surface of the surface air-permeable layer 1 facing the internal space, or the four peripheral edges of the intermediate air-permeable layer are connected with the surface of the back air-permeable layer 2 facing the internal space.
[0058] In some embodiments, the intermediate air-permeable layer, the surface air-permeable layer 1 and the back air-permeable layer 2 all adopt arc surfaces with the same arc top, wherein the surface air-permeable layer 1 and the back air-permeable layer 2 have different arc degrees, the four peripheral edges of the surface air-permeable layer 1 and the four peripheral edges of the back air-permeable layer 2 are abutted and combined, and the four peripheral edges of the intermediate air-permeable layer are abutted and combined with the four peripheral edges of the surface air-permeable layer 1 and the four peripheral edges of the back air-permeable layer 2, or the four peripheral edges of the intermediate air-permeable layer are connected with the surface of the back air-permeable layer 2 facing the internal space.
[0059] In some embodiments, the intermediate air-permeable layer is provided with one, that is, the chest pad includes three air-permeable layers of the surface air-permeable layer 1, the intermediate air-permeable layer and the back air-permeable layer 2, at this time, the air layer 4 between the surface air-permeable layer 1 and the intermediate air-permeable layer and the air layer 4 between the surface air-permeable layer 1 and the intermediate air-permeable layer are provided with the support structure 5. Wherein, the intermediate air-permeable layer, the surface air-permeable layer 1 and the back air-permeable layer 2 respectively adopt arc surfaces with different arc degrees, and the four peripheral edges of the intermediate air-permeable layer, the four peripheral edges of the surface air-permeable layer 1 and the four peripheral edges of the back air-permeable layer 2 are abutted and combined.
[0060] In some embodiments, the intermediate air-permeable layer is provided with two or more, at this time, the air layer 4 between the surface air-permeable layer 1 and the intermediate air-permeable layer, the air layer 4 between the surface air-permeable layer 1 and the intermediate air-permeable layer, and the air layer 4 between the adjacent two intermediate air-permeable layers are all provided with the support structure 5. Wherein, the different intermediate air-permeable layers, the surface air-permeable layer 1 and the back air-permeable layer 2 all respectively adopt arc surfaces with different arc degrees, at this time, the four peripheral edges of all the intermediate air-permeable layers, the four peripheral edges of the surface air-permeable layer 1 and the four peripheral edges of the back air-permeable layer 2 are abutted and combined.
[0061] It is easy to understand that when the intermediate air-permeable layer, the surface air-permeable layer 1 and the back air-permeable layer 2 all respectively adopt arc surfaces with different arc degrees, the surface air-permeable layer 1, the intermediate air-permeable layer and the back air-permeable layer 2 can all be directly abutted and combined through the four peripheral edges, which is convenient for the full spreading of each air-permeable layer, helps the chest pad to realize the light and thin design and the light weight design as a whole, and each air-permeable layer and each air layer 4 can have a larger surface area in the preset direction, at the same time, the support structure 5 can also be arranged in a larger space, based on which the air permeability, the support strength and the rebound performance can be improved.
[0062] In some embodiments, the chest pad comprises a top breathable layer 1, a bottom breathable layer 2 and at least one intermediate breathable layer, wherein the top breathable layer 1 adopts a first arc surface, the bottom breathable layer 2 adopts a second arc surface, the top of the first arc surface and the top of the second arc surface are in the same direction and have different curvatures, and the periphery of the first arc surface is in abutting connection with the periphery of the second arc surface; the intermediate breathable layer adopts a third arc surface, wherein the top of the third arc surface is in the opposite direction of the top of the first arc surface and the top of the second arc surface, and the periphery of the third arc surface is connected with the surface of the top breathable layer 1 facing the internal space. In this way, the third arc surface itself can provide a certain supporting force when the top breathable layer 1 and the bottom breathable layer 2 shrink, thereby accelerating the rebound of the chest pad.
[0063] In some embodiments, the chest pad also comprises a top breathable layer 1, a bottom breathable layer 2 and at least one intermediate breathable layer, wherein the top breathable layer 1 adopts a fourth arc surface, the bottom breathable layer 2 adopts a fifth arc surface, the top of the fourth arc surface and the top of the fifth arc surface are in the same direction, and the fourth arc surface and the fifth arc surface have different curvatures, so that the periphery of the fourth arc surface can be in abutting connection with the periphery of the fifth arc surface; the intermediate breathable layer comprises at least one plane arranged in a predetermined direction, and the periphery of the plane is connected with the surface of the top breathable layer 1 facing the internal space. It is easy to understand that in this embodiment, the intermediate breathable layer in the form of a plane can provide a certain supporting effect when the top breathable layer 1 and the bottom breathable layer 2 shrink, thereby avoiding excessive compression of the chest pad and reducing the rebound force.
[0064] Reference Figure 2 The support structure 5 comprises a plurality of elastic support members 6, and each support member 6 supports the adjacent breathable layers. By arranging a plurality of independent support members 6, it is easy to obtain a hollow support structure 5 by arranging the support members 6 at a distance or staggered, so as to ensure the gas flow between the breathable layers and easily and uniformly arranged to make the support strength and rebound performance of each position of the chest pad uniform.
[0065] Reference Figure 2 The periphery of the breathable hole 3 is supported by at least one support member 6. It is easy to understand that since the strength of the breathable layer is weakened at the position of the breathable hole 3, by arranging the support member 6 corresponding to the breathable hole 3, the support strength of the breathable layer can be improved, and the overall elasticity of the chest pad is also improved, which helps to maintain good chest shape ability.
[0066] In specific implementation, reference Figure 2 The support member 6 adopts an elastic rod member, and the two ends of the rod member are connected with the adjacent breathable layers. Specifically, the periphery of the breathable hole 3 is supported by uniformly arranging a plurality of rod members. In a preferred embodiment, the periphery of the breathable hole 3 is supported by uniformly arranging at least 3 rod members, so as to further improve the support strength and rebound ability of the chest pad.
[0067] In some other embodiments, the support 6 can also be a specific shape formed by a plurality of rods, and the rods can also be arranged in a staggered manner to obtain a hollow support structure 5 to ensure a high gas flow efficiency between the air holes 3.
[0068] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the technical solutions of the present application, and are not intended to limit the specific embodiments of the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims
1. A chest pad characterized in that, The air-permeable layer is provided with a plurality of air-permeable holes, and the air-permeable layers are provided with support structures for supporting the air-permeable layers. The air-permeable layer at least includes a surface air-permeable layer and a back air-permeable layer arranged at two opposite outermost sides of the preset direction, and the four peripheral edges of the surface air-permeable layer are connected with the four peripheral edges of the back air-permeable layer to form an internal space of the chest pad between the surface air-permeable layer and the back air-permeable layer. The outer surface of the surface air-permeable layer is a convex surface, and the outer surface of the back air-permeable layer is a concave surface.
2. The chest pad of claim 1, wherein, The air-permeable layer is a flexible layer or an elastic layer; and / or The air-permeable layer and the support structure are integrally formed.
3. The chest pad of claim 1, wherein, The air-permeable holes are any one or more of hexagonal, circular, heart-shaped, and drop-shaped.
4. The chest pad of claim 1, wherein, The surface air-permeable layer and the back air-permeable layer adopt arc surfaces with different radii, the top of the arc of the surface air-permeable layer is oriented in the same direction as the top of the arc of the back air-permeable layer, and the four peripheral edges of the surface air-permeable layer are in abutting connection with the four peripheral edges of the back air-permeable layer.
5. The chest pad of claim 1, wherein, The air-permeable layer further includes at least one intermediate air-permeable layer arranged in the internal space. The four peripheral edges of the intermediate air-permeable layer are connected with the four peripheral edges of the surface air-permeable layer and the four peripheral edges of the back air-permeable layer, or the four peripheral edges of the intermediate air-permeable layer are connected with the surface of the surface air-permeable layer facing the internal space, or the four peripheral edges of the intermediate air-permeable layer are connected with the surface of the back air-permeable layer facing the internal space.
6. The chest pad of claim 5, wherein, The intermediate air-permeable layer, the surface air-permeable layer, and the back air-permeable layer all adopt arc surfaces with the same top of the arc, wherein the radii of the surface air-permeable layer and the back air-permeable layer are different, the four peripheral edges of the surface air-permeable layer are in abutting connection with the four peripheral edges of the back air-permeable layer, and the four peripheral edges of the intermediate air-permeable layer are in abutting connection with the four peripheral edges of the surface air-permeable layer and the four peripheral edges of the back air-permeable layer, or the four peripheral edges of the intermediate air-permeable layer are connected with the surface of the back air-permeable layer facing the internal space.
7. The chest pad of claim 6, wherein, The intermediate air-permeable layer, the surface air-permeable layer, and the back air-permeable layer all adopt arc surfaces with different radii. The four peripheral edges of the intermediate air-permeable layer, the four peripheral edges of the surface air-permeable layer, and the four peripheral edges of the back air-permeable layer are in abutting connection.
8. The chest pad of claim 5, wherein, The surface air-permeable layer adopts a first arc surface, the back air-permeable layer adopts a second arc surface, the top of the arc of the first arc surface and the top of the arc of the second arc surface are oriented in the same direction and have different radii, and the four peripheral edges of the first arc surface are in abutting connection with the four peripheral edges of the second arc surface. The intermediate air-permeable layer includes at least one third arc surface arranged in the preset direction, the top of the arc of the third arc surface is oriented in the opposite direction of the top of the arc of the first arc surface and the top of the arc of the second arc surface, and the four peripheral edges of the third arc surface are connected with the surface of the surface air-permeable layer facing the internal space.
9. The chest pad of claim 5, wherein, The surface air-permeable layer adopts a fourth arc surface, the inner air-permeable layer adopts a fifth arc surface, the fourth arc surface has the same arc top direction as the fifth arc surface, the fourth arc surface and the fifth arc surface have different arc degrees, and the four peripheral edges of the fourth arc surface and the fifth arc surface are in abutting connection. The intermediate air-permeable layer comprises at least one plane arranged along the preset direction, and the four peripheral edges of the plane are connected to the surface of the surface air-permeable layer facing the internal space.
10. The chest pad of any of claims 1-9, wherein, The support structures each comprise a plurality of elastic support members, and each support member supports the adjacent air-permeable layers.
11. The chest pad of claim 10, wherein, The air-permeable holes are each supported by at least one support member.
12. The chest pad of claim 11, wherein, The support members are elastic rod members, and the two ends of each rod member are connected to the adjacent air-permeable layers.
13. The chest pad of claim 12, wherein, The air-permeable holes are each supported by a plurality of rod members arranged uniformly around the air-permeable holes.