Breathable, moisture-removing and heat-insulating leather boot and preparation process thereof

Abstract

The invention discloses a breathable moisture-removing and heat-insulating leather boot and a preparation process thereof, and belongs to the technical field of leather boot preparation, and the breathable moisture-removing and heat-insulating leather boot comprises a boot upper and a boot sole arranged at the bottom of the boot upper; the first spring is compressed while the inserting rod slides outwards, the boot upper drives the first positioning block to enter the first positioning groove, the inserting rod is loosened, the first positioning block can automatically enter the inserting hole under the action of the first spring, and the first positioning block is fixed; the front half part of the boot upper drives the second positioning block at the bottom to enter the second positioning groove and press downwards, and the arc-shaped limiting block automatically enters the limiting groove of the second positioning block under the action of the second spring to fix the second positioning block, so that the boot upper and the boot sole can be pre-fixed quickly, subsequent sewing or gluing is facilitated, and the work efficiency is improved. The boot sole and the boot upper are pre-fixed in advance, so that the positions of the boot sole and the boot upper can be ensured to be accurate during formal assembly, dislocation is avoided, adjustment time consumption is reduced, operation of workers is smoother, and production efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of leather boot preparation, in particular to a breathable, moisture-wicking and heat-insulating leather boot and a preparation process thereof. Background Art

[0002] Leather boots are long, tube-shaped shoes made of soft leather with a slightly cylindrical upper that reaches above the ankle. They come in a variety of styles and designs, offering both practical functionality and a certain level of fashion appeal. Breathable, moisture-wicking, and heat-insulating leather boots are essential. Active feet easily produce sweat, and if moisture can't escape, it can not only cause discomfort but also breed bacteria and odor due to the damp and hot weather. Breathable, moisture-wicking properties can quickly remove moisture, keeping feet dry and improving comfort. They can also reduce the risk of fungal infections, athlete's foot, and other illnesses. Furthermore, their thermal insulation properties regulate the temperature inside the shoe in different environments, blocking heat in hot weather and reducing heat loss in cold weather. This maintains blood circulation in the feet and prevents foot fatigue caused by temperature discomfort. For outdoor enthusiasts and those in special occupations, these boots can protect the feet in complex environments, improve activity efficiency and work comfort, and reduce the risk of disease.

[0003] At present, when leather boots are manufactured, the boot upper and the sole are generally sewn or glued together. However, when sewing or gluing the sole and the upper, most of the existing methods are done manually, with direct gluing or sewing. If the boot upper and the sole are not pre-fixed in advance, positional displacement may easily occur during sewing or gluing, resulting in inaccurate sewing or gluing positions, a large number of defective products, and affecting the production quality of the leather boots as well as the overall appearance and wearing experience of the leather boots. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem in the prior art that the upper and the sole of leather boots cannot be pre-fixed in advance when sewing or gluing, resulting in the displacement of the sewing or gluing position and affecting the quality of the leather boots. A breathable, moisture-wicking and heat-insulating leather boot and a preparation process thereof are proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A breathable, moisture-wicking, and heat-insulating leather boot comprises a boot upper and a sole arranged at the bottom of the boot upper, wherein a first positioning block and a second positioning block are respectively arranged on the left and right sides of the bottom of the boot upper, and further comprises: a first positioning groove and a second positioning groove respectively opened on the sole, an insertion hole is opened on one side of the first positioning block, an insertion rod is slidably connected to the first positioning groove, a first spring is sleeved on the insertion rod, a limiting groove is opened on the second positioning block, a sliding rod is slidably connected to the second positioning groove, an arc-shaped limiting block is fixedly connected to the sliding rod, and a second spring is sleeved on the sliding rod.

[0007] Preferably, rubber pads are fixedly connected between the first positioning block and the second positioning block and the bottom of the boot upper, and a breathable insole is placed in the boot upper.

[0008] Preferably, one end of the insertion rod extends to the outside of the boot sole and is slidably connected to the boot sole, one end of the insertion rod is fixedly connected to a piston block, and both ends of the first spring are fixedly connected to the piston block and the first positioning groove respectively.

[0009] Preferably, one end of the sliding rod extends to the outside of the shoe sole and is slidingly connected to the shoe sole. A sliding groove corresponding to the arc-shaped limit block is provided on the inner wall of the second positioning groove, and the two ends of the second spring are respectively fixedly connected to the sliding groove and the arc-shaped limit block of the second positioning groove.

[0010] Preferably, a receiving groove is provided at the top of the sole, a rubber airbag strip is fixedly installed in the receiving groove of the sole, an air intake pipe is fixedly connected to the bottom of the first positioning block, and the insertion hole of the first positioning block is fixedly connected to the air intake pipe.

[0011] Preferably, a connecting pipe is fixedly connected to the bottom wall of the first positioning groove, one end of the connecting pipe is fixedly connected to an air supply pipe, and one end of the air supply pipe away from the connecting pipe is fixedly connected to the rubber airbag strip.

[0012] Preferably, the bottom of the shoe sole is provided with a first thickening layer, a second thickening layer, and a third thickening layer, and the tops of the shoe sole, the first thickening layer, the second thickening layer, and the third thickening layer are all provided with a first positioning groove and a second positioning groove.

[0013] Preferably, the bottom of the sole is provided with anti-skid patterns, and rubber airbag strips are installed on the sole, the first thickened layer, the second thickened layer and the third thickened layer.

[0014] Preferably, shoelace holes are symmetrically provided on the boot upper.

[0015] The present invention also provides a preparation process of breathable, moisture-wicking and heat-insulating leather boots, which is prepared by the following steps:

[0016] S1. First, the boot upper is processed into the required shape. Then, according to the required sole thickness, the boot sole, the first thickening layer, the second thickening layer and the third thickening layer are freely combined until the required thickness is achieved.

[0017] S2. When the boot sole and the boot upper are assembled, the insertion rod is pulled to slide toward the outside of the boot sole, and then the boot upper drives the first positioning block at the bottom into the first positioning groove of the boot sole. Then, the insertion rod is released and automatically reset under the action of the first spring, so that the insertion rod enters the insertion hole of the first positioning block, and the rear half of the boot upper is pre-fixed;

[0018] S3. Then align the second positioning block on the front half of the boot upper with the second positioning groove and press downward. The arc-shaped limiting block automatically enters the limiting groove under the action of the second spring to fix the second positioning block, thereby quickly fixing the boot upper and the sole.

[0019] Compared with the prior art, the present invention provides a breathable, moisture-wicking, and heat-insulating leather boot, which has the following beneficial effects:

[0020] 1. This breathable, moisture-wicking, and heat-insulating leather boot features an outward-sliding rod that simultaneously compresses the first spring, causing the boot upper to drive the first positioning block into the first positioning slot. When the rod is released, the boot automatically enters the insertion hole under the action of the first spring, securing the first positioning block. The front half of the boot upper then drives the second positioning block at the bottom into the second positioning slot and presses downward. The arc-shaped stopper, under the action of the second spring, automatically enters the stopper slot of the second positioning block, securing the second positioning block. This allows for quick pre-fixation between the boot upper and the sole, facilitating subsequent sewing or gluing. Pre-fixing the sole and upper ensures accurate positioning during assembly, preventing misalignment and reducing time-consuming adjustments. This allows for smoother operation and improved production efficiency. During the subsequent final fixing steps, such as sewing and gluing, the components are more stable, reducing operational complexity and accelerating production. It also prevents shifting, ensuring a regular structure for the boot and providing a more comfortable fit. Furthermore, this initial, tight fit between the sole and upper lays the foundation for a secure connection, reducing problems like debonding and unraveling, and extending the boot's service life.

[0021] 2. The breathable, moisture-wicking and heat-insulating leather boots, when the boot upper and the sole are fitted together, while the insertion rod is loosened, the insertion rod enters the insertion hole under the action of the first spring, and the insertion rod will drive the piston block into the insertion hole, so that the air in the insertion hole is compressed. At the same time, the air intake pipe at the bottom of the first positioning block automatically sleeves on the outside of the connecting pipe on the bottom wall of the first positioning groove, and then the air enters the connecting pipe through the air intake pipe, and then the air enters the air supply pipe along the connecting pipe. The air supply pipe transports the air to the rubber airbag strip, and the rubber airbag strip gradually expands. As the insertion rod enters the deepest part of the insertion hole, the rubber airbag strip expands to the maximum. The expanded rubber airbag strip tightly fills the gap between the boot upper and the sole, and with stitching or glue, it can effectively prevent the infiltration of liquids such as rain and snow water, reduce air convection in the shoe, reduce heat loss, maintain the temperature in the shoe in a cold environment, and make the feet warmer.

[0022] 3. The breathable, moisture-wicking and heat-insulating leather boots are made by fixing the first thickened layer to the boot upper, the second thickened layer to the first thickened layer, the third thickened layer to the second thickened layer, and the boot sole to the third thickened layer. Each layer can simultaneously achieve the effect of sealing and pre-fixing, and can be freely combined according to the required thickness to adjust the overall thickness of the leather boots. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of a breathable, moisture-wicking, and heat-insulating leather boot proposed by the present invention;

[0024] Figure 2 This is a front view structural diagram of a breathable, moisture-wicking, and heat-insulating leather boot proposed by the present invention;

[0025] Figure 3 This is a schematic side view of the structure of a breathable, moisture-wicking, and heat-insulating leather boot proposed by the present invention;

[0026] Figure 4 This is a schematic structural diagram of the upper and sole of a breathable, moisture-wicking, and heat-insulating leather boot proposed by the present invention;

[0027] Figure 5 This is a structural schematic diagram of a first positioning groove and a second positioning groove on the sole of a breathable, moisture-wicking and heat-insulating leather boot proposed by the present invention;

[0028] Figure 6 The present invention proposes Figure 5 Schematic diagram of the structure of part A;

[0029] Figure 7 The present invention proposes Figure 5 Schematic diagram of the structure of part B;

[0030] Figure 8 The present invention proposes Figure 5 Schematic diagram of the structure of part C;

[0031] Figure 9 This is a schematic structural diagram of the midsole of a breathable, moisture-wicking, and heat-insulating leather boot proposed by the present invention;

[0032] Figure 10 This is a schematic structural diagram of the top of the sole of a breathable, moisture-wicking, and heat-insulating leather boot proposed by the present invention;

[0033] Figure 11 The present invention proposes Figure 10 Schematic diagram of the structure of part D;

[0034] Figure 12 This is a structural schematic diagram of an insertion rod and an insertion hole in a breathable, moisture-wicking, and heat-insulating leather boot proposed by the present invention.

[0035] In the figure: 1. Boot upper; 2. Boot sole; 3. First positioning block; 4. Second positioning block; 5. First positioning slot; 6. Second positioning slot; 7. Insertion hole; 8. Insertion rod; 9. First spring; 10. Limiting slot; 11. Sliding rod; 12. Arc-shaped limiting block; 13. Second spring; 14. Rubber pad; 15. Breathable insole; 16. Piston block; 17. Rubber airbag strip; 18. Inlet pipe; 19. Connecting pipe; 20. Air supply pipe; 21. First thickening layer; 22. Second thickening layer; 23. Third thickening layer; 24. Shoelace perforation. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0037] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are 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 direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0038] Example 1: Reference Figures 1-12 , a breathable, moisture-wicking, and heat-insulating leather boot, comprising: a boot upper 1 and a sole 2 arranged at the bottom of the boot upper 1, a first positioning block 3 and a second positioning block 4 are respectively provided on the left and right sides of the bottom of the boot upper 1, and further comprising: a first positioning groove 5 and a second positioning groove 6 respectively opened on the sole 2, an insertion hole 7 is opened on one side of the first positioning block 3, an insertion rod 8 is slidably connected to the first positioning groove 5, a first spring 9 is sleeved on the insertion rod 8, a limiting groove 10 is opened on the second positioning block 4, a sliding rod 11 is slidably connected to the second positioning groove 6, an arc-shaped limiting block 12 is fixedly connected to the sliding rod 11, and a second spring 13 is sleeved on the sliding rod 11.

[0039] In the present invention, when the boot upper 1 and the boot sole 2 are pre-fixed, the insertion rod 8 is pulled outward, and the insertion rod 8 slides outward while compressing the first spring 9, and then the boot upper 1 drives the first positioning block 3 to enter the first positioning groove 5, and then the insertion rod 8 is released. The insertion rod 8 can automatically reset under the action of the first spring 9 and enter the insertion hole 7 of the first positioning block 3 to fix the first positioning block 3, and then the front half of the boot upper 1 drives the second positioning block 4 at the bottom to enter the second positioning groove 6 and press downward, so that the second positioning block 4 contacts the arc surface of the arc limit block 12, and the arc limit block 12 is pressed downward. When the force is applied, the boot 2 slides toward the outside of the sole 2 under the guidance of the slide bar 11 and the assistance of the second spring 13. Then, when the second positioning block 4 slides to the bottom of the second positioning groove 6, the arc-shaped limit block 12 automatically enters the limit groove 10 of the second positioning block 4 under the action of the second spring 13, fixing the second positioning block 4. This allows the boot upper 1 and the sole 2 to be quickly pre-fixed, facilitating subsequent stitching or gluing. Pre-fixing the sole 2 and the boot upper 1 in advance can ensure the accurate position of the two during formal assembly, avoid misalignment, reduce adjustment time, allow workers to operate more smoothly, and improve production efficiency. In the subsequent final fixing processes such as stitching and gluing, the components are more stable, reducing the difficulty of operation and speeding up production. It can also prevent displacement, ensure the regular structure of the leather boots, and make them more comfortable to wear. At the same time, the sole 2 and the upper 1 are initially tightly fitted together, laying the foundation for a firm connection, reducing problems such as debonding and unthreading, and extending the service life of the leather boots; it should be noted that the insertion rod 8 and the sliding rod 11 are both made of elastic rubber and will not affect the overall wearing comfort of the leather boots.

[0040] Example 2: Reference Figures 1-12 , which is basically the same as the first embodiment, furthermore, a rubber pad 14 is fixedly connected between the first positioning block 3 and the second positioning block 4 and the bottom of the boot upper 1, and a breathable insole 15 is placed in the boot upper 1.

[0041] In the present invention, the rubber pad 14 helps to improve the wearer's experience, and the breathable insole 15 can keep the feet dry. Even when walking in a humid environment or on rainy days, it can prevent the feet from getting wet, reducing the risk of foot discomfort and disease caused by moisture.

[0042] One end of the insertion rod 8 extends to the outside of the boot sole 2 and is slidingly connected to the boot sole 2. One end of the insertion rod 8 is fixedly connected to the piston block 16. The two ends of the first spring 9 are fixedly connected to the piston block 16 and the first positioning groove 5 respectively.

[0043] In the present invention, the first spring 9 can make the insertion rod 8 more stable in the insertion hole 7 of the first positioning block 3, thereby ensuring the stability between the boot upper 1 and the boot sole 2.

[0044] One end of the slide rod 11 extends to the outside of the shoe sole 2 and is slidably connected to the shoe sole 2. A slide groove corresponding to the arc-shaped limit block 12 is provided on the inner wall of the second positioning groove 6, and the two ends of the second spring 13 are fixedly connected to the slide groove of the second positioning groove 6 and the arc-shaped limit block 12 respectively.

[0045] In the present invention, pressing the front half of the boot upper 1 downward allows the second positioning block 4 to automatically enter the second positioning groove 6, and automatically allows the arc-shaped limit block 12 to enter the limit groove 10. By pulling the slide rod 11 outward, the arc-shaped limit block 12 can be driven to slide out of the limit groove 10, releasing the limit on the second positioning block 4, making it convenient and quick to disassemble the boot upper 1 and the sole 2.

[0046] A receiving groove is provided at the top of the sole 2 , in which a rubber airbag strip 17 is fixedly installed. An air intake pipe 18 is fixedly connected to the bottom of the first positioning block 3 , and the insertion hole 7 of the first positioning block 3 is fixedly connected to the air intake pipe 18 .

[0047] A connecting pipe 19 is fixedly connected to the bottom wall of the first positioning groove 5 . One end of the connecting pipe 19 is fixedly connected to an air supply pipe 20 . An end of the air supply pipe 20 away from the connecting pipe 19 is fixedly connected to the rubber airbag strip 17 .

[0048] In the present invention, when the boot upper 1 and the sole 2 are fitted together, when the insertion rod 8 is loosened, the insertion rod 8 enters the insertion hole 7 under the action of the first spring 9, and the insertion rod 8 drives the piston block 16 to enter the insertion hole 7, so that the air in the insertion hole 7 is compressed. At the same time, the air intake pipe 18 at the bottom of the first positioning block 3 is automatically sleeved on the outside of the connecting pipe 19 on the bottom wall of the first positioning groove 5, and then the air enters the connecting pipe 19 through the air intake pipe 18, and then the air enters the air supply pipe 20 along the connecting pipe 19, and the air supply pipe 20 transports the air to the rubber airbag strip 17, which gradually expands. As the insertion rod 8 enters the deepest part of the insertion hole 7, the rubber airbag strip 17 expands to the maximum. The expanded rubber airbag strip 17 tightly fills the gap between the boot upper 1 and the sole 2, and with stitches or glue, it can effectively prevent liquids such as rainwater and snow water from penetrating, can reduce air convection in the shoe, reduce heat loss, maintain the temperature in the shoe in a cold environment, and make the feet warmer;

[0049] When the boot sole 2 and the boot upper 1 are disassembled, the piston block 16 is driven to slide by pulling the insertion rod 8 outward, so that the air in the rubber airbag strip 17 can be automatically pumped out, causing the rubber airbag strip 17 to automatically shrink.

[0050] Example 3: Reference Figures 1-4, which is basically the same as Example 1, and further, the bottom of the sole 2 is provided with a first thickening layer 21, a second thickening layer 22, and a third thickening layer 23, and the tops of the sole 2, the first thickening layer 21, the second thickening layer 22, and the third thickening layer 23 are all provided with a first positioning groove 5 and a second positioning groove 6.

[0051] In the present invention, the first thickening layer 21 is fixed to the boot upper 1, the second thickening layer 22 is fixed to the first thickening layer 21, the third thickening layer 23 is fixed to the second thickening layer 22, and the boot sole 2 is fixed to the third thickening layer 23. Each layer can simultaneously achieve the effect of sealing and pre-fixing, and can be freely combined according to the required thickness to adjust the overall thickness of the leather boots.

[0052] The bottom of the sole 2 is provided with anti-skid patterns, and rubber airbag strips 17 are installed on the sole 2, the first thickened layer 21, the second thickened layer 22, and the third thickened layer 23.

[0053] In the present invention, the anti-skid pattern on the bottom of the sole 2 can increase the anti-skid property of the leather boot as a whole, thereby ensuring the grip and support of the leather boot during wearing.

[0054] The shoe upper 1 is symmetrically provided with shoelace holes 24 .

[0055] In the present invention, the shoelaces can be inserted through the shoelace holes 24, thereby improving the wrapping, stability and comfort between the leather boots and the foot.

[0056] Example 4: A process for preparing breathable, moisture-wicking, and heat-insulating leather boots, comprising the following steps:

[0057] S1. First, the boot upper 1 is processed into the required shape. Then, according to the required sole thickness, the boot sole 2, the first thickening layer 21, the second thickening layer 22 and the third thickening layer 23 are freely combined until the desired thickness is achieved.

[0058] S2. When the sole 2 and the upper 1 are assembled, the insertion rod 8 is pulled to slide toward the outside of the sole 2, and then the upper 1 drives the first positioning block 3 at the bottom into the first positioning groove 5 of the sole 2. Then, the insertion rod 8 is released and automatically reset under the action of the first spring 9, so that the insertion rod 8 enters the insertion hole 7 of the first positioning block 3, and the rear half of the upper 1 is pre-fixed;

[0059] S3. Then align the second positioning block 4 of the front half of the boot upper 1 with the second positioning groove 6 and press downward. The arc-shaped limit block 12 automatically enters the limit groove 10 under the action of the second spring 13 to fix the second positioning block 4, thereby quickly fixing the boot upper 1 and the sole 2.

[0060] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A breathable, moisture-wicking, heat-insulating leather boot comprising: A boot upper (1) and a boot sole (2) arranged at the bottom of the boot upper (1), characterized in that a first positioning block (3) and a second positioning block (4) are respectively arranged on the left and right sides of the bottom of the boot upper (1), and further comprising: A first positioning groove (5) and a second positioning groove (6) are respectively provided on the sole (2); an insertion hole (7) is provided on one side of the first positioning block (3); an insertion rod (8) is slidably connected to the first positioning groove (5); a first spring (9) is sleeved on the insertion rod (8); a limiting groove (10) is provided on the second positioning block (4); a sliding rod (11) is slidably connected to the second positioning groove (6); an arc-shaped limiting block (12) is fixedly connected to the sliding rod (11); and a second spring (13) is sleeved on the sliding rod (11).

2. The breathable, moisture-wicking, heat-insulating leather boots according to claim 1, characterized in that: A rubber pad (14) is fixedly connected between the first positioning block (3) and the second positioning block (4) and the bottom of the boot upper (1), and a breathable insole (15) is placed inside the boot upper (1).

3. The breathable, moisture-wicking, heat-insulating leather boots according to claim 1, characterized in that: One end of the insertion rod (8) extends to the outside of the boot sole (2) and is slidably connected to the boot sole (2); one end of the insertion rod (8) is fixedly connected to a piston block (16); and the two ends of the first spring (9) are fixedly connected to the piston block (16) and the first positioning groove (5), respectively.

4. The breathable, moisture-wicking, heat-insulating leather boots according to claim 1, characterized in that: One end of the slide rod (11) extends to the outside of the shoe sole (2) and is slidably connected to the shoe sole (2); a slide groove corresponding to the arc-shaped limit block (12) is provided on the inner wall of the second positioning groove (6); and the two ends of the second spring (13) are fixedly connected to the slide groove of the second positioning groove (6) and the arc-shaped limit block (12), respectively.

5. The breathable, moisture-wicking, heat-insulating leather boots according to claim 1, characterized in that: A receiving groove is provided at the top of the boot sole (2), a rubber airbag strip (17) is fixedly installed in the receiving groove of the boot sole (2), an air intake pipe (18) is fixedly connected to the bottom of the first positioning block (3), and the insertion hole (7) of the first positioning block (3) is fixedly connected to the air intake pipe (18).

6. The breathable, moisture-wicking, heat-insulating leather boots according to claim 1, characterized in that: A connecting pipe (19) is fixedly connected to the bottom wall of the first positioning groove (5), one end of the connecting pipe (19) is fixedly connected to an air supply pipe (20), and one end of the air supply pipe (20) away from the connecting pipe (19) is fixedly connected to the rubber airbag strip (17).

7. The breathable, moisture-wicking, heat-insulating leather boots according to claim 6, characterized in that: The bottom of the shoe sole (2) is provided with a first thickening layer (21), a second thickening layer (22), and a third thickening layer (23); the tops of the shoe sole (2), the first thickening layer (21), the second thickening layer (22), and the third thickening layer (23) are all provided with a first positioning groove (5) and a second positioning groove (6).

8. The breathable, moisture-wicking, heat-insulating leather boots according to claim 7, characterized in that: The bottom of the boot sole (2) is provided with anti-skid lines, and rubber airbag strips (17) are installed on the boot sole (2), the first thickening layer (21), the second thickening layer (22), and the third thickening layer (23).

9. The breathable, moisture-wicking, heat-insulating leather boots according to claim 1, characterized in that: The boot upper (1) is symmetrically provided with shoelace holes (24).

10. A process for preparing breathable, moisture-wicking, and heat-insulating leather boots, comprising the breathable, moisture-wicking, and heat-insulating leather boots according to any one of claims 1 to 9, characterized in that: The following steps are used to make it: S1. First, the boot upper (1) is processed into a desired shape, and then, according to the desired sole thickness, the boot sole (2), the first thickening layer (21), the second thickening layer (22) and the third thickening layer (23) are freely combined until the desired thickness is achieved; S2, when the boot sole (2) and the boot upper (1) are assembled, the insertion rod (8) is pulled to slide toward the outside of the boot sole (2), and then the boot upper (1) drives the first positioning block (3) at the bottom to be placed into the first positioning groove (5) of the boot sole (2), and then the insertion rod (8) is released and automatically reset under the action of the first spring (9), so that the insertion rod (8) enters the insertion hole (7) of the first positioning block (3), and the rear half of the boot upper (1) is pre-fixed; S3. Then align the second positioning block (4) of the front half of the boot upper (1) with the second positioning groove (6) and press downward. The arc-shaped limiting block (12) automatically enters the limiting groove (10) under the action of the second spring (13) to fix the second positioning block (4), thereby quickly fixing the boot upper (1) and the boot sole (2).

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