A pair of cold-proof boots suitable for cold-region operations

Abstract

The present invention provides a cold-proof boot suitable for cold-region operations, comprising a boot body. A covering member is provided on the outer side of the boot tube of the boot body. A sock liner is sleeved inside the boot body. The opening of the sock liner turns outwards at the upper opening of the boot tube and is connected to the covering member. A storage member is provided on the outer side of the boot tube below the covering member. A leg sleeve circumferential piece is connected to the inner side of the storage member. The left and right ends of the leg sleeve circumferential piece can be butted together to form a leg sleeve. An elastic cord is provided at the upper edge of the leg sleeve circumferential piece. Both ends of the elastic cord extend out of the leg sleeve circumferential piece and can be tied to the front side of the leg sleeve. A first sealing portion is provided on the outer side wall at the upper end of the storage member. A second sealing portion is provided on the outer side wall of the leg sleeve corresponding to the first sealing portion. When the leg sleeve circumferential piece is unfolded, the first sealing portion and the second sealing portion can be hermetically clamped together. When the leg sleeve circumferential piece is stored in the storage member, the upper end of the storage member can be covered and fixed to the inner side of the lower end of the covering member. Advantageous effects of the present invention: This cold-proof boot can achieve a good cold-proof effect in rainy and snowy environments, especially when the snow accumulation is relatively deep.

Description

Technical Field

[0001] The present invention belongs to the technical field of cold-proof boots, and in particular relates to a pair of cold-proof boots suitable for cold-region operations. Background Art

[0002] When performing outdoor operations in a cold environment, operators need to wear equipment that can keep out the cold to ensure the warmth of the body, thereby improving work efficiency. Currently, when operating in cold regions, 07-style cold-proof boots are often worn on the feet, which have good heat preservation effects. The specific structure is as follows: It includes a boot body. The upper side of the boot body is a boot shaft. The front side of the boot shaft is provided with an opening, and a tongue is connected at the opening of the front side of the boot shaft, which can be pressed between the inner walls on both sides of the opening of the front side of the boot shaft. A shoelace is cross-connected between the two sides of the opening of the front side of the boot shaft, and the tongue and the boot shaft are tightened by the shoelace. However, when operating in weather with heavy rain or snow, especially in an environment with deep snow, rain, snow, or snow accumulation can easily penetrate into the inside of the boot shaft from the upper opening of the boot shaft. If this continues for a long time, the feet and calves of the operator will get wet, and thus the cold-proof effect of the cold-proof boots cannot be achieved, which will further affect the wearing comfort of the operator and ultimately may affect work efficiency. Summary of the Invention

[0003] In view of this, the present invention aims to overcome the above deficiencies in the prior art and proposes a pair of cold-proof boots suitable for cold-region operations.

[0004] To achieve the above object, the technical solution of the present invention is realized as follows:

[0005] A pair of cold-proof boots suitable for cold-region operations, including a boot body. The front side of the boot shaft of the boot body is provided with an opening, and a tongue is connected at the opening, which can be pressed between the inner walls on both sides of the opening of the front side of the boot shaft. A shoelace is cross-connected between the two sides of the opening of the front side of the boot shaft. A covering member is arranged around the outer side of the boot shaft of the boot body, and the left and right ends of the covering member are fixedly connected to both sides of the boot shaft. A sock liner is sleeved inside the boot body. The opening of the sock liner turns outwards at the upper opening of the boot shaft and is connected to the covering member on the outer side of the boot shaft.

[0006] An accommodating member is arranged around the outer side of the boot shaft below the covering member. The left and right sides and the bottom of the accommodating member are all fixedly connected to the boot shaft. An expandable leg sleeve piece is connected to the inner side of the accommodating member. The left and right ends of the leg sleeve piece can be butted together to form a leg sleeve. An elastic cord is arranged at the upper edge of the leg sleeve piece. Both ends of the elastic cord extend out of the leg sleeve piece and can be tied to the front side of the leg sleeve.

[0007] A first sealing portion is arranged on the outer side wall of the upper end of the accommodating member, and a second sealing portion is arranged on the outer side wall of the leg sleeve corresponding to the first sealing portion. When the leg sleeve piece is expanded, the first sealing portion and the second sealing portion can be hermetically clamped together. When the leg sleeve piece is accommodated in the accommodating member, the upper end of the accommodating member can be overlapped and fixed to the inner side of the lower end of the covering member.

[0008] Further, the sock cover includes a sock cover body and a flanging located outside the opening end of the sock cover body and integrally provided with the sock cover body. The flanging is an arc-shaped structure and is provided with a notch structure at the position corresponding to the front side opening of the boot tube.

[0009] Further, a first zipper is sewn on the inner side wall of the covering member, and the other side of the first zipper is sewn on the edge of the flanging.

[0010] Further, the covering member includes two left and right first sewing segments and a first connecting segment integrally formed between the two first sewing segments. The top of the first connecting segment protrudes upward from the top of the sewing edge, and the bottom protrudes downward from the bottom of the first sewing segment. The two first sewing segments are sewn on the outer wall of the boot tube. There is a separated state between the first connecting segment and the outer side wall of the boot tube, and one side of the first zipper is sewn on the first connecting segment.

[0011] Further, the storage member includes two left and right second sewing segments, a third sewing segment connected between the bottoms of the two second sewing segments, and a second connecting segment connected between the outer sides of the two second sewing segments. The bottom of the second connecting segment is connected to the outside of the third connecting segment. The second sewing segment and the third sewing segment are both sewn on the outer side wall of the boot tube. A second zipper is sewn on the inner side wall of the second connecting segment, and the other end of the second zipper is sewn on the bottom of the leg sleeve gusset.

[0012] Further, the upper end of the second connecting segment protrudes upward from the upper end of the second sewing segment, and the first sealing portion is provided at the outer side of the upper end of the second connecting segment.

[0013] Further, the leg sleeve gusset includes a middle piece and side pieces located on both sides of the middle piece and integrally formed with the middle piece. The middle piece and the side pieces on both sides form an inverted convex-shaped sheet structure, and a second zipper is connected to the bottom of the middle piece. When the leg sleeve gusset is unfolded, the positions where the bottoms of the side pieces on both sides are located are higher than the position of the upper opening of the storage member and lower than the position of the top of the shoe tongue after the shoelaces are tightened. The side pieces on both sides can be connected together through a third zipper. An elastic cord in a stretched state is provided outside the upper end of the middle piece, and both ends of the elastic cord are located on both sides of the middle piece and can be tied together.

[0014] Further, a hook is fixedly connected to the inner upper ends of the two left and right second sewing segments of the storage member. Connecting holes are provided at both ends of the elastic cord. When the leg sleeve gusset is stored in the storage member, the connecting holes at both ends of the elastic cord can be hooked on the corresponding hooks.

[0015] Further, a connecting member is provided on the outer side wall of the leg sleeve corresponding to the first sealing portion. The left and right sides and the upper side of the connecting member are fixedly connected to the outer side wall of the leg sleeve, and the second sealing portion is provided on the lower side of the inner side wall of the connecting member corresponding to the first sealing portion.

[0016] Further, a third sealing portion is provided at the lower side of the inner side wall of the covering member corresponding to the first sealing portion. When the leg sleeve flap is folded and stored in the storage member, the upper end of the storage member is connected to the inner side of the covering member through the sealing and clamping connection of the first sealing portion and the third sealing portion.

[0017] Further, the first sealing portion includes a first base and a rib located on one side of the first base. The outer surface of the rib is an arc surface structure. The first base is fixedly connected to the outer side of the storage member. The second sealing portion and the third sealing portion both include a second base and two clamping strips arranged parallel to each other up and down on one side of the second base. A slot structure is formed between the two clamping strips. The rib can be clamped in the slot. The second base is fixedly connected to the corresponding connecting member and the covering member. The first sealing portion, the second sealing portion, and the third sealing portion are all made of linear polyethylene material and are welded to the corresponding storage member, connecting member, and covering member.

[0018] Further, the leg sleeve flap is a three-layer composite fabric structure, and from the outside to the inside, it is a woven polyester fabric layer, a PVC film layer, and a polar fleece layer in sequence.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] (1) For the cold-region operation anti-freezing boots of the present invention, a sock liner is arranged inside the boot body, and the opening of the sock liner is turned outwards and fixedly connected to the inner side of the covering member on the outer side of the boot barrel. While providing anti-freezing protection for the feet, it is also convenient to disassemble and wash the sock liner, and it can prevent the sock liner from slipping off the feet.

[0021] (2) For the cold-region operation anti-freezing boots of the present invention, a storage member is arranged on the outer side of the boot barrel below the covering member, and a leg sleeve flap capable of forming a leg sleeve is arranged inside the storage member. The covering member, on the one hand, covers the fixed connection portion of the sock liner opening, and on the other hand, when the leg sleeve flap is inserted into the storage member, it can also cover the opening of the storage member, preventing rain and snow from entering the storage member and wetting the connection portion of the leg sleeve flap.

[0022] (3) When the cold-proof boots applicable to cold-region operations according to the present invention are in use, when the wearer puts on the cold-proof boots and wears the leg cover well, tightens the elastic cord, so that the leg cover will not slip off, and ensures that rain and snow will not pour into the leg cover from here; and after wearing the leg cover well, the leg cover also protects the fixed connection part of the sock cover and the opening of the sock cover, preventing rain and snow from wetting the sock cover; adding a leg cover on the upper side of the boot tube of the original cold-proof boots, on the one hand, protects the opening on the upper side of the boot tube, preventing rain and snow from pouring into the boot body from here. Especially when operating in an environment with thick snow, the snow is very easy to cover the boot tube. After staying in this environment for a long time, the wearing parts of the wearer's calves and feet are very easy to get wet. Therefore, adding a leg cover can effectively avoid this situation; and a first sealing part is arranged on the outer side wall of the upper end of the storage part, and a second sealing part is arranged on the outer side wall of the leg cover corresponding to the first sealing part. When the leg cover piece is unfolded, the first sealing part and the second sealing part are hermetically clamped together to prevent rain and snow from pouring into the storage part; after the leg cover piece is stored in the storage part, it can also provide good cold protection for the ankle part. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings forming a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0024] Figure 1 is a schematic structural diagram of the cold-proof boots applicable to cold-region operations according to an embodiment of the present invention;

[0025] Figure 2 is a partial structural diagram of the cold-proof boots when the leg cover piece is installed in the storage part according to an embodiment of the present invention;

[0026] Figure 3 is a schematic structural diagram of the leg cover according to an embodiment of the present invention;

[0027] Figure 4 is a partial structural diagram of the connection between the leg cover and the boot tube according to an embodiment of the present invention;

[0028] Figure 5 is Figure 4 a partial enlarged view of part A in

[0029] Figure 6 is a cross-sectional view of the structure of the first sealing part according to an embodiment of the present invention;

[0030] Figure 7 is a cross-sectional view of the structure of the third sealing part according to an embodiment of the present invention.

[0031] Description of the reference numerals:

[0032] 1. Boot body; 11. Boot shaft; 12. Tongue; 13. Shoelace; 2. Sock cover; 21. Sock cover body; 22. Flange; 3. Covering member; 31. First sewing section; 32. First connecting section; 33. Third sealing part; 331. Second base; 332. Card strip; 333. Card slot; 4. Storage member; 41. Second sewing section; 42. Second connecting section; 43. First sealing part; 431. First base; 432. Ridge; 5. Leg cover; 51. Middle piece; 52. Side piece; 53. Third zipper; 54. Second zipper; 55. Mounting member; 56. Limit block; 6. Connecting member. Detailed implementation mode

[0033] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments may be combined with each other.

[0034] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention 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 therefore should not be construed as a limitation of the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

[0036] The present invention will be described in detail below with reference to the drawings and in combination with embodiments.

[0037] As shown in the figure, an anti - cold boot suitable for cold - region operations includes a boot body 1. The front side of the boot tube 11 of the boot body 1 is open, and a tongue 12 is connected at the opening, which can be pressed between the inner walls on both sides of the front - side opening of the boot tube 11. A shoelace 13 is cross - threaded between the two sides of the front - side opening of the boot tube 11. A covering member 3 is arranged around the outer side of the boot tube 11 of the boot body 1, and the left and right ends of the covering member 3 are fixedly connected to both sides of the boot tube 11. A sock - liner 2 is sleeved inside the boot body 1. The opening of the sock - liner 2 turns outwards at the upper - side opening of the boot tube 11 and is connected to the covering member 3 on the outer side of the boot tube 11. An accommodating member 4 is arranged around the outer side of the boot tube 11 below the covering member 3. The left and right sides and the bottom of the accommodating member 4 are fixedly connected to the boot tube 11. An expandable leg - sleeve flap is connected to the inner side of the accommodating member 4. The left and right ends of the leg - sleeve flap can be butted together to form a leg - sleeve 5. An elastic cord is arranged at the upper - edge of the leg - sleeve flap. The two ends of the elastic cord extend out of the leg - sleeve flap and can be tied to the front side of the leg - sleeve 5. A first sealing portion 43 is arranged on the outer - side wall at the upper end of the accommodating member 4, and a second sealing portion is arranged on the outer - side wall of the leg - sleeve 5 corresponding to the first sealing portion 43. When the leg - sleeve flap is expanded, the first sealing portion 43 and the second sealing portion can be hermetically clamped together. When the leg - sleeve flap is accommodated in the accommodating member 4, the upper end of the accommodating member 4 can be covered and fixed to the inner side of the lower end of the covering member 3. In this embodiment, a sock - liner 2 is arranged inside the boot body 1, which has a further anti - cold effect on the feet. The opening of the sock - liner 2 is fixedly connected to the outer side of the boot tube 11. On the one hand, it avoids the sock - liner 2 falling off the feet during the long - distance walking of the wearer. On the other hand, it is convenient for the disassembly and assembly of the sock - liner 2 and for cleaning. In addition, if the fixed connection of the opening of the sock - liner 2 is arranged on the inner side of the boot tube 11, it is easy to rub against the wearer. The covering member 3 covers the fixed connection of the opening of the sock - liner 2 and also covers the opening of the accommodating member 4. After the leg - sleeve flap is inserted into the accommodating member 4, the opening of the accommodating member 4 can be covered by the covering member 3 to prevent rain and snow from entering the accommodating member 4 and wetting the connection of the leg - sleeve flap. When the wearer puts on the anti - cold boot and wears the leg - sleeve 5 well, tightens the elastic cord, the leg - sleeve 5 will not slip off, and it is ensured that rain and snow will not pour into the leg - sleeve 5 from here. And after wearing the leg - sleeve 5 well, the leg - sleeve 5 also protects the sock - liner 2 and the fixed connection of the opening of the sock - liner 2 from being wetted by rain and snow. Adding a leg - sleeve 5 to the upper side of the boot tube 11 of the original anti - cold boot, on the one hand, protects the upper - side opening of the boot tube 11 and prevents rain and snow from pouring into the boot body 1 from here. Especially when operating in an environment with thick snow, the snow is very likely to cover the boot tube 11. After staying in this environment for a long time, the wearing parts of the wearer's calves and feet are very likely to be wetted. Therefore, adding the leg - sleeve 5 can effectively avoid this situation. And a first sealing portion 43 is arranged on the outer - side wall at the upper end of the accommodating member 4, and a second sealing portion is arranged on the outer - side wall of the leg - sleeve 5 corresponding to the first sealing portion 43. When the leg - sleeve flap is expanded, the first sealing portion 43 and the second sealing portion are hermetically clamped together to prevent rain and snow from pouring into the accommodating member 4.

[0038] The sock cover 2 includes a sock cover body 21 and a flanging 22 located outside the opening end of the sock cover body 21 and integrally provided with the sock cover body 21. The flanging 22 is an arc-shaped structure and is provided with a notch structure at the position corresponding to the front opening of the boot tube 11. In this embodiment, a notch is provided on the front side of the flanging 22 to avoid interfering with tying the shoelace 13 at the front opening of the boot tube 11, thereby affecting the effect of tightening the upper end of the front opening of the boot tube 11 through the shoelace 13.

[0039] A first zipper is sewn on the inner side wall of the covering member 3, and the other side of the first zipper is sewn on the edge of the flanging 22. The sock cover 2 is connected to the outside of the boot tube 11 through the first zipper, and the first zipper is covered and protected by the covering member 3, avoiding the problem that the first zipper is prone to rusting in a long-term wet and cold environment, such as in rainy, snowy and cold weather or when working in the snow, and at the same time avoiding direct contact between rain and snow and the first zipper to make this place wet.

[0040] The covering member 3 includes two left and right first sewing segments 31 and a first connecting segment 32 integrally formed between the two first sewing segments 31. The top of the first connecting segment 32 protrudes upward from the top of the sewing edge, and the bottom protrudes downward from the bottom of the first sewing segment 31. The two first sewing segments 31 are sewn on the outer wall of the boot tube 11. There is a separated state between the first connecting segment 32 and the outer side wall of the boot tube 11, and one side of the first zipper is sewn on the first connecting segment 32. In this embodiment, the covering member 3 is made of leather material, which can prevent rain and snow from soaking.

[0041] The storage member 4 includes two left and right second sewing segments 41, a third sewing segment connected between the bottoms of the two second sewing segments 41, and a second connecting segment 42 connected between the outer sides of the two second sewing segments 41. The bottom of the second connecting segment 42 is connected to the outside of the third connecting segment. The second sewing segment 41 and the third sewing segment are both sewn on the outer side wall of the boot tube 11. A second zipper 54 is sewn on the inner side wall of the second connecting segment 42, and the other end of the second zipper 54 is sewn on the bottom of the leg sleeve gusset. The leg sleeve gusset is connected to the storage member 4 through the second zipper 54. In this embodiment, the second sewing segment 41, the third sewing segment and the second connecting segment 42 are integrally formed structures and are made of leather material, which has the effect of preventing rain and snow from soaking. Since leather has a certain flexibility, when sewn to the boot tube 11, the sewing place can bend the whole piece of leather to a certain extent for easy sewing.

[0042] The upper end of the second connecting segment 42 protrudes upward from the upper end of the second sewing segment 41, and a first sealing portion 43 is provided outside the upper end of the second connecting segment 42, which is convenient for mating and fixing with the covering member 3 or the connecting member 6 inside the covering member 3 or the connecting member 6.

[0043] The leg sleeve panel includes a middle panel 51 and side panels 52 located on both sides of the middle panel 51 and integrally formed with the middle panel 51. The middle panel 51 and the side panels 52 on both sides form an inverted convex-shaped sheet structure, and a second zipper 54 is connected to the bottom of the middle panel 51. When the leg sleeve panel is unfolded, the positions of the bottoms of the side panels 52 on both sides are higher than the position of the upper opening of the storage member 4 and lower than the position of the top of the tongue 12 after the shoelaces 13 are tightened. When the wearer wears the leg sleeve panel in the form of a leg sleeve 5, it is ensured that the side panels 52 cover the front side of the upper opening of the boot tube 11, that is, cover the connection between the tongue 12 and the upper end of the boot tube 11, so as to prevent rain and snow from pouring into the boot tube 11 from this place. The two side panels 52 on both sides can be connected together through a third zipper 53. An elastic cord in a stretched state is provided outside the upper end of the middle panel 51, and both ends of the elastic cord are located on both sides of the middle panel 51 and can be tied together. In this embodiment, a mounting member 55 is sewn outside the upper end of the middle panel 51. The mounting member 55 is a strip-shaped structure, sewn to the middle panel 51 at the upper and lower ends, and freely arranged at the left and right ends. The elastic cord is threaded between the mounting member 55 and the middle panel 51, and both ends extend out of the left and right ends of the mounting member 55 and are both fastened with limit blocks 56. The size of the limit blocks 56 is larger than the gap between the free end of the mounting member 55 and the middle panel 51, so as to prevent the limit blocks 56 from entering between the mounting member 55 and the middle panel 51. At the same time, when the wearer wraps the leg sleeve panel around the leg and forms the leg sleeve 5 after zipping up the third zipper 53, it is also convenient to extract both ends of the elastic cord through the limit blocks 56 and tie them tightly on the front side of the leg sleeve 5, so as to tighten the upper opening of the leg sleeve 5 and thus prevent wind, snow and rain from directly pouring into the boot body 1 along the upper opening.

[0044] At the inner upper ends of the left and right second sewing segments 41 of the storage member 4, a hook is fixedly connected to each. Connection holes are provided at both ends of the elastic cord. When the leg sleeve panel is stored in the storage member 4, the connection holes at both ends of the elastic cord can be hooked on the corresponding hooks. In this embodiment, the connection holes are provided on the elastic cord outside the limit blocks 56, which is convenient for the wearer to hook or remove the elastic cord on the hooks. After the leg sleeve panel is stored in the storage member 4, the elastic cord can be hooked on the hooks, and under the elastic force of the elastic cord, both hooks are pulled inward, so that the upper ends of the two second sewing segments 41 are displaced inward. When the second connecting segment 42 is fixed to the inner side of the lower end of the covering member 3, the two ends of the opening of the storage member 4 are tightened inward. Since the second zipper 54 is in a concealed position rather than exposed on the outside, it is very easy to rust and not easy to dry when in a wet state for a long time. Therefore, by providing hooks and hooking both ends of the elastic cord on the hooks after the leg sleeve panel is stored in the storage member 4, the situation that rain and snow enter the storage member 4 from both ends of the opening of the storage member 4 and then soak the second zipper 54 is avoided.

[0045] A connecting member 6 is provided at a position corresponding to the first sealing portion 43 on the outer side wall of the leg sleeve 5. The left and right sides and the upper side of the connecting member 6 are fixedly connected to the outer side wall of the leg sleeve 5 together. The second sealing portion is provided at the lower side of the inner side wall of the connecting member 6 corresponding to the first sealing portion 43.

[0046] A third sealing portion 33 is provided at the lower side of the inner side wall of the covering member 3 corresponding to the first sealing portion 43. When the leg sleeve flap is folded and stored in the storage member 4, the upper end of the storage member 4 is connected to the inner side of the covering member 3 through the sealing and clamping connection of the first sealing portion 43 and the third sealing portion 33. In this embodiment, the third sealing portion 33 is provided inside the connecting section and is located below the first zipper.

[0047] The first sealing portion 43 includes a first base 431 and a rib 432 located on one side of the first base 431. The outer surface of the rib 432 is an arc surface structure. The first base 431 is fixedly connected to the outer side of the storage member 4. Both the second sealing portion and the third sealing portion 33 include a second base 331 and two clamping bars 332 arranged in parallel up and down on one side of the second base 331. A clamping groove 333 structure is formed between the two clamping bars 332. The rib 432 can be clamped in the clamping groove 333. The second base 331 is fixedly connected to the corresponding connecting member 6 and covering member 3. In this embodiment, the first sealing portion 43, the second sealing portion, and the third sealing portion 33 are all made of linear polyethylene material and are welded to the corresponding storage member 4, connecting member 6, and covering member 3.

[0048] The leg sleeve flap is a three-layer composite fabric structure, and from the outside to the inside, it is a woven polyester fabric layer, a PVC film layer, and a polar fleece layer in sequence. In this embodiment, both sides of the PVC film layer are respectively bonded to the woven polyester fabric layer and the polar fleece layer to form a composite layer structure. The woven polyester fabric is a high-count and high-density fabric, and when combined with the PVC film, it has the function of preventing wind and rain. At the same time, a polar fleece layer is added on the innermost side to play a warming role. This composite fabric has the effects of light weight, wind and rain prevention, and warmth, and at the same time, the thickness is very thin, which is convenient for folding and storing in the storage member 4.

[0049] In this embodiment, the sock sleeve 2 is a warming sleeve, and its material can be a fleece fabric.

[0050] The working process of this embodiment is as follows:

[0051] First, remove the sock sleeve 2 and put it on, then put on the boot body 1, fix the opening position of the sock sleeve 2 through the first zipper. Then, extend the leg sleeve flap from the storage member 4 and unfold it, wrap it around the lower leg part on the upper side of the boot barrel 11, and pull the third zipper 53 to make the leg sleeve flap form a leg sleeve 5. Tighten the elastic cord on the upper side of the leg sleeve flap and tie a knot in the front to fix it, so that the leg sleeve 5 will not separate from the lower leg part. Finally, seal and clamp the first sealing portion 43 on the outside of the storage member 4 and the second sealing portion inside the connecting member 6 together to prevent rain and snow from pouring into the storage member 4.

[0052] When the wearer does not need to use the leg sleeve 5, the leg sleeve 5 is folded in the form of a leg sleeve panel and stored in the storage member 4, and both ends of the elastic cord are hung on the hooks. On the one hand, under the elastic force of the elastic cord, both sides of the hooks are pulled inward, so that the upper ends of the two second sewing sections 41 of the storage member 4 are displaced inward. When the upper end of the second connecting section 42 is hermetically clamped with the third sealing portion 33 on the covering member 3 through the first sealing portion 43, the two ends of the opening of the storage member 4 are tightened inward due to the elastic cord, avoiding the situation that rain and snow enter the storage member 4 from both ends of the opening of the storage member 4 and then soak the second zipper 54; on the other hand, both ends of the elastic cord are hung on the hooks, and at this time the elastic cord is still in a stretched state, which can play a role in positioning the folded leg sleeve panel and prevent the leg sleeve panel from being scattered in the storage member 4; after the leg sleeve panel is stored in the storage member 4, it can also provide good cold protection for the ankle part.

[0053] The folding process of the leg sleeve panel is as follows: unzip the third zipper 53 to unfold the leg sleeve panel, fold the two side pieces 52 inward along the connection between the side pieces 52 and the middle piece 51 to the inside of the middle piece 51, and then fold the structure formed by folding the side pieces 52 and the middle piece 51 together in half from top to bottom. In this embodiment, the middle piece 51 is divided into three parts from top to bottom and folded in half twice, and finally the folded leg sleeve panel is loaded into the storage member 4.

[0054] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, 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 cold-proof boot suitable for cold-region operations, comprising a boot body. The front side of the boot tube of the boot body is provided with an opening, and a tongue is connected at the opening and can be pressed between the inner walls on both sides of the front-side opening of the boot tube. A shoelace is cross-connected between the two sides of the opening on the front side of the boot tube. It is characterized in that: A covering piece is arranged around the outer side of the boot shaft, and the left and right ends of the covering piece are fixedly connected to both sides of the boot shaft. A sock cover is sleeved inside the boot body, and the opening of the sock cover turns outwards at the upper opening of the boot shaft and is connected to the covering piece on the outer side of the boot shaft. An accommodating piece is arranged around the outer side of the boot shaft below the covering piece. The left and right sides and the bottom of the accommodating piece are all fixedly connected to the boot shaft. An expandable leg sleeve piece is connected to the inner side of the accommodating piece. The left and right ends of the leg sleeve piece can be butted together to form a leg sleeve. An elastic cord is arranged at the upper edge of the leg sleeve piece, and both ends of the elastic cord extend out of the leg sleeve piece and can be tied to the front side of the leg sleeve. A first sealing part is arranged on the outer side wall of the upper end of the accommodating piece, and a second sealing part is arranged on the outer side wall of the leg sleeve corresponding to the first sealing part. When the leg sleeve piece is expanded, the first sealing part and the second sealing part can be hermetically clamped together. When the leg sleeve piece is accommodated in the accommodating piece, the upper end of the accommodating piece can be covered and fixed to the inner side of the lower end of the covering piece. The accommodating piece includes two left and right second sewing segments, a third sewing segment connected between the bottoms of the two second sewing segments, and a second connecting segment connected between the outer sides of the two second sewing segments. The bottom of the second connecting segment is connected to the outer side of the third connecting segment. The second sewing segment and the third sewing segment are both sewn on the outer side wall of the boot shaft. A second zipper is sewn on the inner side wall of the second connecting segment, and the other end of the second zipper is sewn on the bottom of the leg sleeve piece. The upper end of the second connecting segment protrudes upwards from the upper end of the second sewing segment, and the first sealing part is arranged at the outer side of the upper end of the second connecting segment.

2. The cold-proof boots applicable to cold-region operations according to claim 1, wherein: The sock cover includes a sock cover body and a flanging located outside the opening end of the sock cover body and integrally arranged with the sock cover body. The flanging is an arc-shaped structure and is provided with a notch structure at the position corresponding to the front opening of the boot shaft. A first zipper is sewn on the inner side wall of the covering piece, and the other side of the first zipper is sewn on the edge of the flanging.

3. The cold-proof boots applicable to cold-region operations according to claim 2, wherein: The covering piece includes two left and right first sewing segments and a first connecting segment integrally formed between the two first sewing segments. The top of the first connecting segment protrudes upwards from the top of the sewing edge, and the bottom protrudes downwards from the bottom of the first sewing segment. The two first sewing segments are sewn on the outer wall of the boot shaft. The first connecting segment is in a separated state from the outer side wall of the boot shaft. One side of the first zipper is sewn on the first connecting segment.

4. The cold-proof boots applicable to cold-region operations according to claim 1 are characterized in that: The leg sleeve piece includes a middle piece and side pieces located on both sides of the middle piece and integrally formed with the middle piece. The middle piece and the side pieces on both sides form an inverted convex-shaped sheet structure, and a second zipper is connected to the bottom of the middle piece. When the leg sleeve piece is expanded, the positions of the bottoms of the side pieces on both sides are higher than the upper opening position of the accommodating piece and lower than the top position of the shoe tongue after the shoelaces are tightened. The side pieces on both sides can be connected together through a third zipper. An elastic cord in a stretched state is arranged on the outer side of the upper end of the middle piece, and both ends of the elastic cord are respectively located on both sides of the middle piece and can be tied together.

5. The cold-proof boots applicable to cold-region operations according to claim 4, characterized in that: A hook is fixedly connected to the upper inner end of each of the two left and right second sewing segments of the accommodating piece. Connecting holes are opened at both ends of the elastic cord. When the leg sleeve piece is accommodated in the accommodating piece, the connecting holes at both ends of the elastic cord can be hooked on the corresponding hooks.

6. The cold-proof boots applicable to cold-region operations according to claim 1 are characterized in that: A connecting piece is provided at a position corresponding to the first sealing portion on the outer side wall of the leg sleeve. The left and right sides and the upper side of the connecting piece are fixedly connected to the outer side wall of the leg sleeve together. The second sealing portion is arranged at the lower side of the inner side wall of the connecting piece corresponding to the first sealing portion.

7. The cold-proof boots applicable to cold-region operations according to claim 6, characterized in that: A third sealing portion is provided at the lower side of the inner side wall of the covering piece corresponding to the first sealing portion. When the leg sleeve flap is folded and stored in the storage piece, the upper end of the storage piece is connected to the inner side of the covering piece through the sealing and clamping connection of the first sealing portion and the third sealing portion.

8. A cold-proof boot applicable to cold-region operations according to claim 7, characterized in that: The first sealing portion includes a first base and a rib located on one side of the first base. The outer surface of the rib is an arc surface structure. The first base is fixed on the outer side of the storage piece. The second sealing portion and the third sealing portion both include a second base and two clamping strips arranged in parallel up and down on one side of the second base. A slot structure is formed between the two clamping strips. The rib can be clamped in the slot. The second base is fixed on the corresponding connecting piece and covering piece.

9. The cold-proof boots applicable to cold-region operations according to claim 1, wherein: The leg sleeve flap is a three-layer composite fabric structure, and from the outside to the inside, it is a woven polyester fabric layer, a PVC film layer, and a polar fleece layer in sequence.

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