Fabric for rain hat, rain hat and preparation method thereof

Abstract

The invention relates to a fabric for a rain hat, the rain hat and a preparation method thereof, the fabric for the rain hat is a piece of fabric in a tiled state, the piece of fabric is properly cut, and the rain hat can be obtained by the operation process of enclosing and fixedly connecting adjacent boundaries of the fabric. The rain hat is easy to store after being flatly laid before being processed, and does not need to occupy too large space; in the processing process, the rain hat can be obtained by simply enclosing one piece of fabric and fixedly connecting the overlapped edges, the processing link is simple, and the operation is convenient and fast.

Description

Technical Field

[0001] The present invention relates to the technical field of outdoor protective clothing, and particularly to a fabric for a rain hat, a rain hat and a preparation method thereof. Background Art

[0002] A rain hat plays a role in protecting a person's head from rain and water. Existing rain hats are generally prepared by integral molding with a mold and are in a three-dimensional state. If it is necessary to process the hat on a raincoat or other protective clothing, a relatively large space is required to store the three-dimensional rain hat both before and after processing. To solve this problem of space occupation, there are now rain hats on the market that are processed from multiple pieces of sheet materials. Since a hat is composed of multiple pieces of sheet materials, during the processing, multiple pieces of sheet materials need to be combined and aligned. Not only do they need to be paired and combined, but also aligned, thus increasing the processing steps and being time-consuming. It is also easy to misalign during the alignment processing between different sheet materials. Summary of the Invention

[0003] The present invention aims to provide a fabric for a rain hat, a rain hat and a method for making a rain hat to solve the technical problems of time-consuming in the processing and production of the rain hat and easy misalignment of multiple pieces of fabric during the processing.

[0004] First Aspect

[0005] The present invention discloses a fabric for a rain hat. The fabric is in a flat and unfolded state. The fabric includes a left brim sheet, a right brim sheet and a crown sheet. The left brim sheet, the right brim sheet and the crown sheet are integrally connected at the center of the fabric and extend radially outward from the center of the fabric without overlapping each other. The left brim sheet has a first left brim boundary and a second left brim boundary. The right brim sheet has a first right brim boundary and a second right brim boundary. The crown sheet has a first crown boundary and a second crown boundary. The first left brim boundary and the first crown boundary are opposite, and the distance between the first left brim boundary and the first crown boundary gradually increases radially outward from the center of the fabric. The second left brim boundary and the first right brim boundary are opposite, and the distance between the second left brim boundary and the first right brim boundary gradually increases radially outward from the center of the fabric. The second crown boundary and the second right brim boundary are opposite, and the distance between the second crown boundary and the second right brim boundary gradually increases radially outward from the center of the fabric.

[0006] In one embodiment, the left brim sheet and the right brim sheet are symmetrically arranged about the crown sheet, and the crown sheet has a left-right symmetric structure.

[0007] Second Aspect

[0008] The present invention discloses a rain hat made of the fabric described in any of the foregoing embodiments, wherein the first left brim boundary and the first hat top boundary are fixedly connected, the second left brim boundary and the first right brim boundary are fixedly connected, the second hat top boundary and the second right brim boundary are fixedly connected, and the left brim sheet, the right brim sheet and the hat top sheet are jointly enclosed to form a head wearing cavity.

[0009] In one of the embodiments, at the edge portion of the head wearing cavity close to the human face, the rain hat is provided with a tightening channel and two through holes connecting the first and tail ends of the tightening channel along the circumference of the head; the rain hat includes a tightening rope, the tightening rope is passed through the tightening channel and the two ends of the tightening rope extend out of the two through holes respectively for the user to operate to tighten the head wearing cavity.

[0010] In one of the embodiments, at the edge portion of the head wearing cavity close to the human face, the boundaries of the brim sheet are sequentially fitted and fixed to the left brim sheet, the top sheet and the right brim sheet along the circumference of the head to jointly enclose and form the tightening channel.

[0011] In one embodiment, the through hole is arranged on a side of the tightening channel away from the head wearing cavity, and the tightening rope extends out of the tightening channel and is exposed outside the rain hat.

[0012] In one of the embodiments, at the edge portion of the head wearing cavity close to the human face, the boundary portion of the left brim sheet, the boundary portion of the top sheet, and the boundary portion of the right brim sheet are folded to fit and fix to the inner wall or the outer wall of the head wearing cavity to form the tightening channel.

[0013] In one embodiment, the left brim sheet includes a left brim lug, and the right brim sheet includes a right brim lug. The left brim lug and the right brim lug are symmetrical and located on opposite sides of the head wearing cavity. The left brim lug and the right brim lug are detachably connected via buttons or Velcro to tighten the head wearing cavity.

[0014] In one embodiment, the rain hat includes a brim connected to the edge of the head wearing cavity, and the brim covers the top of the face; the brim includes a supporting plate and two brim sheets, the supporting plate is a shape memory material, the boundary of the supporting plate is in contact with the boundary of the brim sheet, and the supporting plate is sandwiched between the two brim sheets.

[0015] In one embodiment, the first left brim boundary and the first crown boundary are formed into a first longitudinal combined line by hot pressing, and the burr of the first longitudinal combined line protrudes from the inner side wall of the head wearing cavity; and / or, the second left brim boundary and the first right brim boundary are formed into a second longitudinal combined line by hot pressing, and the burr of the second longitudinal combined line protrudes from the inner side wall of the head wearing cavity; and / or, the second crown boundary and the second right brim boundary are formed into a third longitudinal combined line by hot pressing, and the burr of the third longitudinal combined line protrudes from the inner side wall of the head wearing cavity.

[0016] The third aspect

[0017] The present invention discloses a preparation method of a rain cap, and the preparation method includes the following steps:

[0018] S10, Prepare raw materials, including the fabric for the rain cap, brim sheet materials, drawstrings, and visors as described in claim 1 or 2.

[0019] S20, Enclose the head wearing cavity, fixedly connect the first left brim boundary and the first crown boundary, fixedly connect the second left brim boundary and the first right brim boundary, and fixedly connect the second crown boundary and the second right brim boundary, so that the left brim sheet material, the right brim sheet material, and the crown sheet material jointly enclose to form the head wearing cavity.

[0020] S30, Process the drawstring channel. At the edge part of the head wearing cavity close to the human face, attach and fix the brim sheet material boundary to the left brim sheet material, the crown sheet material, and the right brim sheet material in sequence along the head circumference to jointly enclose to form the drawstring channel, and open two perforations communicating with the drawstring channel at the head and tail ends of the drawstring channel.

[0021] S40, Thread the drawstring, guide the drawstring to pass through the drawstring channel, and make both ends of the drawstring extend out of the two perforations respectively for the user to stretch and operate.

[0022] S50, Process the visor, attach and fix the edge of the visor to the edge part of the drawstring channel, the visor shields directly above the human face, and part of the visor uses a support sheet made of a shape memory material.

[0023] In one embodiment, the way of attaching and fixing between the sheet materials adopts a hot pressing process or a sewing process.

[0024] It can be seen from the above technical solutions that the embodiments of the present invention have at least the following advantages and positive effects:

[0025] The embodiments of the present invention provide a fabric for a rain cap, a rain cap and a preparation method thereof. A user can obtain a rain cap only by performing a simple processing operation of enclosing and fixedly connecting adjacent boundaries on a piece of fabric for a rain cap. On the one hand, compared with forming a rain cap by enclosing multiple pieces of fabric correspondingly, in this application, a rain cap is formed by enclosing a single piece of fabric correspondingly. During the process of processing and preparing the rain cap, there is no need to combine and pair fabrics for different parts, and there will be no situation of having one more or one less piece, reducing the combination and pairing link, reducing the processing time, and improving the efficiency of preparing the rain cap. On the other hand, compared with the fixed connection of the boundaries of multiple pieces of fabric, during the process of fixedly connecting the adjacent boundaries of a single piece of fabric in this application, the alignment is more accurate, and it is not easy to be misaligned, and the product yield of the rain cap is higher. Reducing the processing time, improving the preparation efficiency, and improving the yield, thus greatly reducing the cost of producing and preparing the rain cap. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0027] Figure 1 It is a schematic diagram of the flat structure of the fabric for a rain cap according to an embodiment of the present application;

[0028] Figure 2 is Figure 1 a schematic diagram of the structure of the rain cap formed by processing the shown fabric;

[0029] Figure 3 convex Figure 2 a schematic diagram of the structure of the other perspective of the shown rain cap;

[0030] Figure 4 is along Figure 2 the cross-sectional structure diagram in the A-A direction in;

[0031] Figure 5 It is a flowchart of the preparation method of the rain cap of the present application.

[0032] The description of the reference numerals is as follows:

[0033] 10. Fabric for a rain hat; 100. Left brim piece; 110. First left brim boundary; 120. Second left brim boundary; 130. Left brim lug; 200. Right brim piece; 210. First right brim boundary; 220. Second right brim boundary; 230. Right brim lug; 300. Crown piece; 310. First crown boundary; 320. Second crown boundary; 400. Rim piece; 510. Support piece; 520. Visor piece;

[0034] 20. Rain hat; 21. Head wearing cavity; 22. Tightening channel; 23. Perforation; 24. Tightening cord; 25. Visor; 26. First longitudinal combination line; 27. Second longitudinal combination line; 28. Third longitudinal combination line. Detailed implementation mode

[0035] Typical implementation modes embodying the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various variations in different implementation modes, all of which do not depart from the scope of the present invention, and the descriptions and illustrations therein are essentially for illustrative purposes and not for limiting the present invention.

[0036] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, "a plurality" means two or more unless otherwise specifically defined.

[0037] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "set", and "connected" 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 application can be understood according to specific circumstances.

[0038] With reference to Figure 1 and Figure 2 This application provides a novel fabric 10 for a rain hat. The fabric 10 can obtain a hat by simply enclosing and connecting and fixing adjacent boundaries. Specifically, the fabric 10 is in a flat and unfolded state. The fabric 10 includes a left brim piece 100, a right brim piece 200, and a crown piece 300. The left brim piece 100, the right brim piece 200, and the crown piece 300 are integrally connected at the center of the fabric 10 and extend radially outward from the center of the fabric 10 without overlapping each other.

[0039] Further, Figure 1 It is shown that the left brim piece 100 has a first left brim boundary 110 and a second left brim boundary 120, the right brim piece 200 has a first right brim boundary 210 and a second right brim boundary 220, and the crown piece 300 has a first crown boundary 310 and a second crown boundary 320. The first left brim boundary 110 is opposite to the first crown boundary 310, and the distance between the first left brim boundary 110 and the first crown boundary 310 gradually increases radially outward from the center of the fabric 10; the second left brim boundary 120 is opposite to the first right brim boundary 210, and the distance between the second left brim boundary 120 and the first right brim boundary 210 gradually increases radially outward from the center of the fabric 10; the second crown boundary 320 is opposite to the second right brim boundary 220, and the distance between the second crown boundary 320 and the second right brim boundary 220 gradually increases radially outward from the center of the fabric 10. Here, during the process of switching the planar fabric 10 into the three-dimensional rain hat 20, when the fabric 10 is in a flat state, the gaps existing between adjacent boundaries provide moving space for each piece (the left brim piece 100, the right brim piece 200, and the crown piece 300) during the enclosure process, and they always do not overlap with each other. After the adjacent boundaries of each piece are aligned and overlapped, they are connected and fixed to form a three-dimensional rain hat 20.

[0040] Preferably, referring to Figure 1 , in an embodiment, the left brim piece 100 and the right brim piece 200 are arranged symmetrically left and right with respect to the crown piece 300, and the crown piece 300 is arranged symmetrically left and right. That is, the fabric 10 is axisymmetric with respect to the center line of the crown piece 300. After the left brim piece 100 and the right brim piece 200 are folded along the center line of the crown piece 300, they can completely overlap, and the left and right parts of the crown piece 300 can also completely overlap. The axisymmetric planar structure of the fabric 10 not only reduces the cutting difficulty but also makes the enclosed rain hat 20 present symmetric beauty. It should be noted that in this application, the cutting position of the fabric 10 is not limited, and any cutting method that satisfies that a piece of fabric 10 can be connected and fixed by enclosure to obtain a hat should be protected.

[0041] In a second aspect, with reference to Figures 1-3, this application provides a rain hat 20 made of the aforementioned fabric 10. The first left brim boundary 110 is fixedly connected to the first crown boundary 310, the second left brim boundary 120 and the first right brim boundary 210 are fixedly connected, and the second crown boundary 320 and the second right brim boundary 220 are fixedly connected. The left brim sheet 100, the right brim sheet 200 and the crown sheet 300 jointly enclose to form a head wearing cavity 21. Here, when the user wears the rain hat 20, relative to the human body, the head wearing is limited within the head wearing cavity 21. The left brim sheet 100 covers the left side of the head, the right brim sheet 200 covers the right side of the head, the left brim sheet 100 and the right brim sheet 200 jointly cover the rear side of the head at the connection position, and the crown sheet 300 covers the top of the head.

[0042] Preferably, in one embodiment, with reference to Figure 2 and Figure 3 , when the user wears the rain hat 20, at the edge part of the head wearing cavity 21 close to the human face side, that is, at the front edge of the head wearing cavity 21, the rain hat 20 is provided with a tightening channel 22 along the head circumference and two through holes 23 communicating with the head and tail ends of the tightening channel 22. The rain hat 20 includes a tightening rope 24. The tightening rope 24 passes through the tightening channel 22 and both ends of the tightening rope 24 respectively extend out of the two through holes 23 to the outside for the user to operate to tighten the head wearing cavity 21, so as to further stably wear the rain hat 20 on the head. Here, the tightening rope 24 can be an elastic rope or a non-elastic rope. When the tightening rope 24 extends out of the through hole 23, the user can tie a knot or connect a blocking block to the part of the tightening rope 24 extending to the outside. On the one hand, it prevents the end of the tightening rope 24 from entering the tightening channel 22, and on the other hand, it stabilizes the state of tightening the head wearing cavity 21 and stably wears the rain hat 20 on the head.

[0043] Preferably, in one embodiment, with reference to Figures 1-3 , the left brim sheet 100 includes a left brim lug 130, the right brim sheet 200 includes a right brim lug 230. The left brim lug 130 and the right brim lug 230 are left-right symmetric and located on opposite sides of the head wearing cavity 21. The left brim lug 130 and the right brim lug 230 can be detachably connected by buttons, buckles or Velcro (not shown in the figure) to tighten the head wearing cavity 21. In this embodiment, the tightening channel 22, the through hole 23 and the tightening rope 24 may not be provided to tighten the head wearing cavity 21. Therefore, in this application, the setting or not of the tightening channel 22, the through hole 23 and the tightening rope 24, or the left brim lug 130 and the right brim lug 230 is not limited, and any structural method that can tighten the head wearing cavity 21 should be protected.

[0044] Preferably, in one embodiment, with reference to Figure 1 and Figure 2The fabric 10 includes a brim sheet 400. At the edge of the head wearing cavity 21 close to the human face, that is, at the front edge of the head wearing cavity 21, the edge of the brim sheet 400 is sequentially fixed to the left brim sheet 100, the top sheet 300 and the right brim sheet 200 along the circumference of the head, so as to enclose the tightening channel 22 described above. Further, the perforation 23 is provided on the side of the tightening channel 22 away from the head wearing cavity 21, and the two ends of the tightening rope 24 extend out of the tightening channel 22 and are exposed to the rain hat 20. The specific implementation method is as follows: the brim sheet 400 is fixed to the inner side wall edge of the head wearing cavity 21, and the two perforations 23 are respectively opened at the edge of the left brim sheet 100 and the edge of the right brim sheet 200; or the brim sheet 400 is fixed to the outer side wall edge of the head wearing cavity 21, and the two perforations 23 are respectively opened at the left and right ends of the brim sheet 400.

[0045] It should be noted that, firstly, in other embodiments, there is no need to add an additional brim sheet 400. At the edge of the head wearing cavity 21 close to the human face, that is, at the front edge of the head wearing cavity 21, the boundary of the left brim sheet 100, the boundary of the top sheet 300, and the boundary of the right brim sheet 200 are folded toward the top of the head to fit and fix to the inner wall of the head wearing cavity 21 or the outer wall of the head wearing cavity 21 to form a tightening channel 22. The perforations 23 in this embodiment are respectively provided at the edge of the left brim sheet 100 and the edge of the right brim sheet 200. Therefore, in this application, whether the brim sheet 400 is provided or not is not limited, and any means that can form the tightening channel 22 should be protected. Secondly, the perforation 23 is arranged on the outer wall of the head wearing cavity 21 to prevent the tightening rope 24 from directly contacting the neck or the skin around the head, thereby increasing the comfort of wearing the rain hat 20. Therefore, without considering the comfort of wearing the rain hat 20, in the present application, the setting position of the perforation 23 is not limited, and it can be opened inside and outside the head wearing cavity 21, or at the head and tail ends of the tightening channel 22.

[0046] Preferably, in one embodiment, in combination with reference Figure 1 , Figure 2 and Figure 4, the rain cap 20 includes a brim 25 connected to the edge of the head wearing cavity 21. When the user wears the rain cap 20, the brim 25 blocks directly above the face, preventing rain or splashing water from wetting the face. The brim 25 includes a support piece 510 and two brim piece materials 520. The boundary of the support piece 510 fits with the boundary of the brim piece materials 520. As shown in Figure 4, the support piece 510 is clamped between the two brim piece materials 520. Here, the support piece 510 is made of a shape memory material. It should be noted that the shape memory material has a special microstructure and phase change mechanism. When subjected to external stimuli (such as temperature, pressure, light, etc.), it can recover from a temporary shape to its preset original shape. It is an intelligent material that can restore its original shape under specific conditions, mainly including two categories: shape memory alloy (SMA) and shape memory polymer (SMP). The support piece 510 here utilizes the characteristics of the shape memory material to support the entire brim 25 directly in front of the forehead, playing a role in supporting and blocking rain and water. The brim piece materials 520 are used to wrap the support piece 510 and thermally press it onto the edge of the head wearing cavity 21. It should be noted that the brim 25 is for the purpose of blocking rain and water from the face. When the space of the head wearing cavity 21 is large enough, it is also possible not to additionally set the brim 25 to block rain. Therefore, in this application, the setting of the brim 25, the support piece 510, and the brim piece materials 520 is not limited.

[0047] Furthermore, in an embodiment, the fabric 10 is made of a waterproof fabric, playing a role in blocking rain and water. The fitting and fixing between adjacent boundaries can adopt combined connection means such as hot pressing process, sewing, zippers, etc. Preferably, in this embodiment, the first left brim boundary 110 and the first cap top boundary 310 are hot pressed to form a first longitudinal combined line 26, and the frayed edge of the first longitudinal combined line 26 protrudes from the inner wall of the head wearing cavity 21; and / or, the second left brim boundary 120 and the first right brim boundary 210 are hot pressed to form a second longitudinal combined line 27, and the frayed edge of the second longitudinal combined line 27 protrudes from the inner wall of the head wearing cavity 21; and / or, the second cap top boundary 320 and the second right brim boundary 220 are hot pressed to form a third longitudinal combined line 28, and the frayed edge of the third longitudinal combined line 28 protrudes from the inner wall of the head wearing cavity 21. Here, the frayed edges of the first longitudinal combined line 26, the second longitudinal combined line 27, and the third longitudinal combined line 28 protrude from the inner wall of the head wearing cavity 21, which plays a certain supporting function for the rain cap 20 to enhance the three-dimensional sense of the entire rain cap 20. It should be noted that without considering the three-dimensional sense of the entire rain cap 20, the protruding position of the frayed edge of each longitudinal combined line is not limited. It can be on the inner wall of the head wearing cavity 21, on the outer wall of the head wearing cavity 21, or the frayed edge can be ground and cut off.

[0048] Thirdly, referring to Figure 5, the present application also provides a method for manufacturing a rain hat, and the steps are as follows:

[0049] S10, Prepare raw materials, including fabric 10, brim sheet 400, drawstring 24, and visor 25;

[0050] S20, Enclose the head wearing cavity. Fix and connect the first left brim boundary 110 and the first crown boundary 310, the second left brim boundary 120 and the first right brim boundary 210, and the second crown boundary 320 and the second right brim boundary 220. So that the left brim sheet 100, the right brim sheet 200, and the crown sheet 300 jointly enclose to form the head wearing cavity 21;

[0051] S30, Process the tightening channel 22. At the edge part of the head wearing cavity 21 close to the human face, that is, at the front edge of the head wearing cavity 21, attach and fix the edge of the brim sheet 400 to the left brim sheet 100, the crown sheet 300, and the right brim sheet 200 in sequence along the head circumference to jointly enclose and form the tightening channel 22, and open two through holes 23 communicating with the tightening channel 22 at the head and tail ends of the tightening channel 22;

[0052] S40, Thread the drawstring 24. Guide the drawstring 24 to pass through the tightening channel 22, and make both ends of the drawstring 24 extend out of the two through holes 23 for the user to stretch and operate;

[0053] S50, Process the visor 25. Attach and fix the edge of the visor 25 to the edge part of the tightening channel 22 to obtain a complete rain hat 20; wherein, the visor 25 shields directly above the face, and part of the visor 25 is made of a support sheet 510 made of a shape memory material.

[0054] Preferably, in one embodiment, in each step of the method for manufacturing the rain hat, the way of attaching and fixing between the boundaries or edges of each sheet material adopts a hot pressing process or a sewing process. It should be understood that in other embodiments, adhesives, zippers, etc. can also be used to connect and fix different boundaries.

[0055] It should be noted that for the rain hat 20 of the present application, since there is no limitation on whether the head wearing cavity 21 is tightened, in the manufacturing method, there is no limitation on the steps of whether to process the tightening channel 22 and whether to thread the drawstring 24. For the rain hat 20 of the present application, if the space of the head wearing cavity 21 is made large enough, the rain hat 20 can also provide a good rain shielding function for the face without additionally setting the visor 25. Therefore, in the manufacturing method, there is no limitation on the step of whether to process the visor 25. Finally, the rain hat 20 of the present application can also be directly fixedly connected to a raincoat or other protective clothing through a hot pressing process or a sewing process to be used as a matching protective hat.

[0056] The present invention application simultaneously provides a fabric 10 for a rain hat, a rain hat 20, and a preparation method for a rain hat. A user can obtain a complete rain hat 20 only by performing a simple processing operation of enclosing and fixedly connecting adjacent boundaries on a piece of fabric 10. On the one hand, compared with forming a rain hat 20 by correspondingly enclosing multiple pieces of fabric 10, in this application, a rain hat 20 is formed by correspondingly enclosing a single piece of fabric 10. During the process of processing and preparing the rain hat 20, there is no need to combine and pair the fabrics 10 for different parts, and there will be no situation of having one more or one less piece, reducing the combination and pairing link, thereby reducing the processing time and improving the efficiency of preparing the rain hat 20. On the other hand, compared with the process of fixedly connecting the corresponding positions of the boundaries of multiple pieces of fabric 10, in this application, during the process of fixedly connecting the adjacent boundaries of a single piece of fabric 10, the alignment is more accurate, and it is not easy to have misalignment, and the product yield of the rain hat 20 is higher. Reducing the processing time, improving the preparation efficiency, and improving the product yield, thereby greatly reducing the cost of producing and preparing the rain hat 20.

[0057] Although the present invention has been described with reference to several exemplary embodiments, it should be understood that the terms used are illustrative and exemplary rather than restrictive. Since the present invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above-described embodiments are not limited to any of the foregoing details, but should be broadly construed within the spirit and scope defined by the appended claims. Therefore, all changes and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A fabric for a rain hat, characterized in that: The fabric is in a flat and unfolded state, and the fabric includes a left brim sheet, a right brim sheet and a top sheet, the left brim sheet, the right brim sheet and the top sheet are integrally connected at the center of the fabric and extend radially outward from the center of the fabric without overlapping each other; the left brim sheet has a first left brim boundary and a second left brim boundary, the right brim sheet has a first right brim boundary and a second right brim boundary, and the top sheet has a first top boundary and a second top boundary; the first left brim boundary is opposite to the first top boundary, and the distance between the first left brim boundary and the first top boundary gradually increases radially outward from the center of the fabric; the second left brim boundary is opposite to the first right brim boundary, and the distance between the second left brim boundary and the first right brim boundary gradually increases radially outward from the center of the fabric; the second top boundary is opposite to the second right brim boundary, and the distance between the second top boundary and the second right brim boundary gradually increases radially outward from the center of the fabric.

2. The fabric according to claim 1, characterized in that: The left brim sheet material and the right brim sheet material are arranged in a bilaterally symmetrical manner with respect to the top sheet material, and the top sheet material has a bilaterally symmetrical structure.

3. A rain hat made of the fabric as claimed in claim 1 or 2, characterized in that: The first left brim boundary and the first hat top boundary are fixedly connected, the second left brim boundary and the first right brim boundary are fixedly connected, the second hat top boundary and the second right brim boundary are fixedly connected, and the left brim sheet, the right brim sheet and the hat top sheet together enclose a head wearing cavity.

4. The rain hat according to claim 3, characterized in that: At the edge portion of the head wearing cavity close to the human face, the rain hat is provided with a tightening channel and two through holes connecting the first and tail ends of the tightening channel along the circumference of the head; the rain hat includes a tightening rope, the tightening rope is passed through the tightening channel and the two ends of the tightening rope extend out of the two through holes respectively for the user to operate to tighten the head wearing cavity.

5. The rain hat according to claim 4, characterized in that: The fabric includes a brim piece, and at the edge of the head wearing cavity close to the human face, the border of the brim piece is sequentially attached and fixed to the left brim piece, the top piece and the right brim piece along the circumference of the head to jointly enclose and form the tightening channel; And / or, the through hole is arranged on a side of the tightening channel away from the head wearing cavity, and the tightening rope extends out of the tightening channel and is exposed outside the rain hat.

6. The rain hat according to claim 4, characterized in that: At the edge portion of the head wearing cavity close to the human face, the boundary portion of the left brim sheet, the boundary portion of the top sheet and the boundary portion of the right brim sheet are folded to fit and fix to the inner wall or the outer wall of the head wearing cavity to form the tightening channel.

7. The rain hat according to claim 3, characterized in that: The left brim sheet includes a left brim lug, and the right brim sheet includes a right brim lug. The left brim lug and the right brim lug are symmetrical and located at opposite sides of the head wearing cavity. The left brim lug and the right brim lug are detachably connected via buttons or Velcro to tighten the head wearing cavity. And / or, the rain hat includes a brim connected to the edge of the head wearing cavity, and the brim covers the top of the face; the brim includes a supporting piece and two brim sheets, the supporting piece is a shape memory material, the boundary of the supporting piece is in contact with the boundary of the brim sheet, and the supporting piece is sandwiched between the two brim sheets.

8. The rain hat according to claim 3, characterized in that: The first left brim boundary and the first top brim boundary are formed by hot pressing to form a first longitudinal combination line, and the burrs of the first longitudinal combination line protrude from the inner side wall of the head wearing cavity; and / or, the second left brim boundary and the first right brim boundary are formed by hot pressing to form a second longitudinal combination line, and the burrs of the second longitudinal combination line protrude from the inner side wall of the head wearing cavity; and / or, the second top brim boundary and the second right brim boundary are formed by hot pressing to form a third longitudinal combination line, and the burrs of the third longitudinal combination line protrude from the inner side wall of the head wearing cavity.

9. A method for preparing a rain hat, characterized in that: The preparation method comprises the following steps: S10, preparing raw materials, including the fabric for the rain hat according to claim 1 or 2, the brim sheet, the tightening rope, and the visor; S20, enclosing the head wearing cavity, fixing the first left brim edge with the first hat top edge, fixing the second left brim edge with the first right brim edge, fixing the second hat top edge with the second right brim edge, so that the left brim sheet, the right brim sheet and the hat top sheet together enclose the head wearing cavity; S30, processing a tightening channel, at the edge of the head wearing cavity close to the human face, the edges of the brim sheet are sequentially attached to and fixed to the left brim sheet, the top sheet and the right brim sheet along the circumference of the head to jointly enclose and form the tightening channel, and two through holes communicating with the tightening channel are opened at the first and second ends of the tightening channel; S40, threading the tightening rope, guiding the tightening rope to pass through the tightening channel, and allowing both ends of the tightening rope to extend out of the two through holes respectively for the user to stretch; S50, processing the brim of the cap, fitting and fixing the edge of the brim of the cap to the edge of the tightening channel, the brim of the cap covers the top of the human face, and the portion of the brim of the cap adopts a support sheet made of shape memory material.

10. The method for preparing a rain hat according to claim 9, characterized in that: The sheets of material are fastened together by heat pressing or sewing.

Images