Shoe sole

Abstract

The utility model relates to the technical field of shoe soles, and discloses a shoe sole which comprises a shoe outer sole and a shoe middle sole, a first supporting part is arranged on the front foot sole part of the shoe middle sole, a second supporting part is arranged on the heel part of the shoe middle sole, and the interiors of the first supporting part and the second supporting part are arranged in a cavity mode. An air inlet groove and an air outlet groove which are horizontally arranged are formed in the shoe insole. When a person stands forwards for a long time, the half sole of the foot extrudes the first supporting part, so that gas in the first supporting part enters the second supporting part, the top of the second supporting part expands upwards and makes contact with the heel, the second supporting part is higher than the first supporting part, and the gravity center of the body is conveniently transferred to the tiptoe; the pressure of the knees and the waist can be relieved, meanwhile, due to the limitation of the heels, gas in the first supporting parts cannot completely enter the second supporting parts, the gas reserved in the first supporting parts can support the front soles, and the using comfort of the shoe sole is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of soles, in particular to a sole. Background Art

[0002] Initially, people always walked barefoot or wearing low-support shoes. Since the invention of modern sports shoes in the 1840s, shoes have been used more as a tool to protect the foot, improve walking stability, improve sports performance and reduce injury rate. The sole has the ability to absorb and release energy. When the sole plate is harder, the ability to absorb and release energy is poor. When people walk or run, the impact transmitted from the ground can cause joint degeneration or may also become a factor of lumbago. In order to fully absorb the considerable impact applied to the sole when walking or running so as not to burden the skeletal muscle system, the sole absorbs the impact by utilizing multiple cushioning components or reducing the hardness of the sole itself. However, the ground reaction force decreases as the sole absorbs the impact, thereby having a problem of being more tired when walking or running for a long time.

[0003] The utility model patent with application number 202280010505.9 discloses a sole, including a sole body made of a flexible material; and a plate made of a material with a bending modulus higher than the bending modulus of the flexible material constituting the sole body, wherein at least two plates are included in the sole body, which are less likely to feel the push-up on the sole when landing, and suppress pronation, so that weight can be quickly moved when running or jogging. Although the sole can be used for activities such as slow walking, brisk walking, and jogging, it also integrates the function of a functional insole, which can effectively relieve the plantar pressure of patients with foot problems such as flat feet. However, due to the convexity of the buttocks and the backward tilt of the center of gravity, standing for a long time will be very strenuous, so the center of gravity needs to be adjusted. Otherwise, standing for a long time will cause brain hypoxia, leading to dizziness, etc. Unexpected situations, so when standing for a long time, you need to lean forward and adjust the center of gravity forward. Since many modern shoes are designed to be low in front and high in the back, and are elastic, if a person leans forward at this time, the elastic compression of the front sole will cause our heels to be excessively higher than our toes. This posture actually tightens our arches in disguise, passively lengthens the tendons of the soles of the feet that were originally used to resist gravity, and keeps them in a tight and stressed state, which will put extra pressure on our arches, causing additional impact on ligaments, muscles, and soft tissues, and even damage. The resilience of the shoes can play a shock-absorbing and protective role. If the resilience is too large, when walking, most of the force generated by our feet pushing off the ground will be absorbed by the soles. In order to maintain normal movement, we can only use more force, and we will feel more tired over time.

[0004] Therefore, in order to solve the above problems, this embodiment provides a sole. Utility Model Content

[0005] The utility model aims to provide a sole for solving the above-mentioned problems that the heel is excessively higher than the toes, which in turn tightens the arch of the foot, causing additional impact and damage to the ligaments, muscles and soft tissues, as well as the problem that the resilience is too large, and the force generated by the foot pushing against the ground during walking will be greatly absorbed by the sole.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A shoe sole comprises an outer sole and a midsole, wherein a first supporting portion is provided at a forefoot portion of the midsole, and a second supporting portion is provided at a heel portion of the midsole, wherein the first supporting portion and the second supporting portion are both hollow in the interior, and an air inlet groove and an air outlet groove are provided in the interior of the midsole, wherein the air inlet groove and the air outlet groove are used to exchange gas inside the first supporting portion and the second supporting portion.

[0008] Preferably, when the pressure inside the first support part and the second support part increases, the top can expand upward, and a limiting flow mechanism is provided inside the air inlet groove and the air outlet groove, and the limiting flow mechanism is used to limit the flow rate of gas exchange inside the first support part and the second support part.

[0009] Preferably, the flow limiting mechanism includes a limiting tube, a sealing part is provided on one side of the limiting tube, a movable rod is fixedly connected to the side of the sealing part away from the limiting tube, the outer wall of the movable rod is slidably connected to a limiting ring, an elastic part is connected between the limiting ring and the sealing part, the elastic part is sleeved on the outer wall of the movable rod, and the outer wall of the limiting ring is fixedly connected to a plurality of fixing parts equidistantly distributed around the circumference.

[0010] Preferably, the flow limiting mechanism is located inside the air inlet groove, wherein the outer wall of the limiting tube is fixedly connected to the inner wall of the air inlet groove, the sealing member is arranged on the side of the limiting tube close to the first support portion, and each of the fixing members is fixedly connected to the inner wall of the air inlet groove on one side away from the limiting ring, and the limiting ring is connected to the inner wall of the air inlet groove through the fixing member.

[0011] Preferably, the flow limiting mechanism is located inside the air outlet groove, wherein the outer wall of the limiting tube is fixedly connected to the inner wall of the air outlet groove, the sealing member is arranged on the side of the limiting tube close to the second support portion, and each side of the fixing member away from the limiting ring is fixedly connected to the inner wall of the air outlet groove, and the limiting ring is connected to the inner wall of the air outlet groove through the fixing member.

[0012] Preferably, the diameters of the plugging member and the limiting ring are both smaller than the inner diameters of the air inlet groove and the air outlet groove. Embedding grooves are provided at both ends of the limiting tube. One side of the plugging member close to the limiting tube can be inserted into the corresponding inner part of the embedding groove to plug the limiting tube.

[0013] Preferably, squeezing the first support part can make the gas inside the first support part enter the inside of the air outlet groove, can make the plugging member inside the air outlet groove move away from the limiting tube, and can make the gas enter the inside of the second support part.

[0014] Preferably, squeezing the second support part can make the gas inside the second support part enter the inside of the air inlet groove, can make the plugging member inside the air inlet groove move away from the limiting tube, and can make the gas enter the inside of the first support part.

[0015] Preferably, the first support part is connected to the shoe outsole and the shoe midsole by cementing, and the second support part is connected to the shoe midsole by cementing.

[0016] Preferably, the shoe outsole is integrally injection-molded from a rubber material, and the shoe midsole is integrally injection-molded from a foam material.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] 1. Through the settings of the first support part and the second support part in the present utility model, when a person stands for a long time and leans forward, the front sole of the foot will squeeze the first support part, causing the gas inside the first support part to enter the inside of the second support part. The pressure inside the second support part increases, and the top of the second support part expands upward and contacts the heel, making the height of the second support part higher than that of the first support part. This facilitates the transfer of the body's center of gravity to the toes, can reduce the pressure on the knees and waist. At the same time, restricted by the heel, after the top of the second support part contacts the heel, the top of the second support part stops expanding upward, and the gas remaining inside the first support part can support the front sole of the foot, avoiding excessive squeezing of the first support part, preventing the heel from being excessively higher than the toes, and avoiding additional impacts on ligaments, muscles, and soft tissues caused by the tightening of the arch of the foot, thus improving the comfort of the shoe sole during use.

[0019] 2. With the provision of the first support part and the second support part in the present utility model, when the heel contacts the ground, the heel will squeeze the gas inside the second support part, causing the gas inside the second support part to enter the inside of the first support part. At this time, the internal pressure of the first support part increases, and the top of the first support part expands upward and contacts the front sole, presenting a forward-tilting state. On the one hand, the gas inside the second support part is reduced, resulting in a decrease in its resilience, avoiding excessive resilience at the heel of the sole, and improving the force-bearing effect of the heel on the ground. On the other hand, more gas accumulates inside the first support part, enabling the front sole to be stressed in advance, shortening the stress time of the front sole, and at the same time enhancing the shock absorption effect of the first support part when being squeezed. Subsequently, when the front sole contacts the ground, the front sole squeezes the first support part, causing the gas inside the first support part to enter the inside of the second support part, increasing the internal pressure of the second support part. The top of the second support part expands upward and contacts the heel. On the one hand, the gas inside the first support part is reduced, decreasing its resilience, avoiding excessive resilience at the front sole of the sole, and preventing the force generated by the front sole when pushing off the ground from being largely absorbed by the sole. On the other hand, more gas accumulates inside the second support part, enhancing the shock absorption effect of the second support part when being squeezed. Thus, during walking, by adjusting the degree of squeezing to regulate the exchange degree of the gas inside the second support part and the first support part, the self-adjustment of resilience is achieved. While ensuring the shock absorption effect, it avoids the phenomenon that the force generated by pushing off the ground is largely absorbed by the sole due to high resilience, achieving labor-saving progress and improving the practicality.

[0020] 3. With the provision of the first support part and the second support part in the present utility model, when the user quickens the pace, the gas exchange efficiency inside the first support part and the second support part can be improved, and the expansion frequency of the tops of the first support part and the second support part becomes faster, which can massage the front sole and heel of the user to a certain extent and improve the comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings are used to provide further understanding of the present utility model and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0022] Figure 1 is the structural distribution diagram of the sole of the present utility model;

[0023] Figure 2 is the overall schematic diagram of the sole of the present utility model;

[0024] Figure 3 is the structural distribution schematic diagram of the first support part and the second support part of the present utility model;

[0025] Figure 4 is the structural schematic diagram of the first support part of the present utility model;

[0026] Figure 5 Structural schematic diagram of the second support part of the present utility model;

[0027] Figure 6 Structural schematic diagram of the air intake groove of the present utility model;

[0028] Figure 7 Enlarged structural view of the air outlet groove of the present utility model;

[0029] Figure 8 For the present utility model Figure 7 Enlarged structural view of part A in;

[0030] Figure 9 Structural schematic diagram of the limiting ring and the fixing member of the present utility model;

[0031] Figure 10 Schematic diagram of the walking process of the present utility model.

[0032] In the figure: 1, outer sole of the shoe; 2, midsole of the shoe; 3, first support part; 4, second support part; 5, air intake groove; 6, air outlet groove; 7, flow limiting mechanism; 71, limiting tube; 72, plugging member; 73, movable rod; 74, limiting ring; 75, elastic member; 76, fixing member; 77, embedding groove. Specific implementation mode

[0033] The following combines the attached drawings to further describe the present utility model:

[0034] As Figures 1 to 9 shown, a sole includes an outer sole 1 of the shoe and a midsole 2 of the shoe. The front sole part of the midsole 2 is provided with a first support part 3, and the heel part of the midsole 2 is provided with a second support part 4. The interiors of the first support part 3 and the second support part 4 are both provided with cavities. An air intake groove 5 and an air outlet groove 6 are horizontally arranged inside the midsole 2. The air intake groove 5 and the air outlet groove 6 are used to exchange the gas inside the first support part 3 and the second support part 4.

[0035] The outer sole 1 of the shoe and the midsole 2 of the shoe can be connected by bonding. The first support part 3 is connected to the outer sole 1 of the shoe and the midsole 2 by bonding. The second support part 4 is connected to the midsole 2 by bonding. When the internal pressure of the first support part 3 and the second support part 4 increases, both can make the top expand upward.

[0036] The first support part 3 and the second support part 4 are made of polyester fiber material. Polyester fiber has characteristics such as light weight, softness, heat resistance, high strength, and chemical corrosion resistance. As Figure 2As shown in the figure, by restricting the bottom and side surfaces of the first support portion 3 and the second support portion 4, that is, by wrapping and restricting the bottom and side surfaces of the first support portion 3 by the midsole 2 of the forefoot portion and the outsole 1, and by wrapping and restricting the bottom and side surfaces of the second support portion 4 by the midsole 2 of the heel portion, the tops of the first support portion 3 and the second support portion 4 are flush with the top of the midsole 2. When the internal pressure of the first support portion 3 and the second support portion 4 increases, the tops of the first support portion 3 and the second support portion 4 expand upward.

[0037] Flow limiting mechanisms 7 are provided inside both the air inlet groove 5 and the air outlet groove 6. The flow limiting mechanisms 7 are used to limit the flow rate of gas exchange inside the first support portion 3 and the second support portion 4.

[0038] The flow limiting mechanism 7 includes a limiting tube 71. A blocking member 72 is provided on one side of the limiting tube 71. A movable rod 73 is fixedly connected to the side of the blocking member 72 away from the limiting tube 71. A limiting ring 74 is slidably connected to the outer wall of the movable rod 73. An elastic member 75 is connected between the limiting ring 74 and the blocking member 72. The elastic member 75 is sleeved on the outer wall of the movable rod 73. A plurality of fixing members 76 are fixedly connected to the outer wall of the limiting ring 74 and are evenly distributed at equal intervals in a circumferential manner. There are at least two fixing members 76.

[0039] As Figure 6 shown, for the flow limiting mechanism 7 located inside the air inlet groove 5, the outer wall of the limiting tube 71 is fixedly connected to the inner wall of the air inlet groove 5. The blocking member 72 is provided on the side of the limiting tube 71 close to the first support portion 3. The side of each fixing member 76 away from the limiting ring 74 is fixedly connected to the inner wall of the air inlet groove 5. The limiting ring 74 is connected to the inner wall of the air inlet groove 5 through the fixing members 76.

[0040] As Figure 7 shown, for the flow limiting mechanism 7 located inside the air outlet groove 6, the outer wall of the limiting tube 71 is fixedly connected to the inner wall of the air outlet groove 6. The blocking member 72 is provided on the side of the limiting tube 71 close to the second support portion 4. The side of each fixing member 76 away from the limiting ring 74 is fixedly connected to the inner wall of the air outlet groove 6. The limiting ring 74 is connected to the inner wall of the air outlet groove 6 through the fixing members 76.

[0041] As Figure 8 shown, the diameters of both the blocking member 72 and the limiting ring 74 are smaller than the inner diameters of the air inlet groove 5 and the air outlet groove 6. The purpose is to facilitate the flow of gas. Embedding grooves 77 are provided at both ends of the limiting tube 71. The side of the blocking member 72 close to the limiting tube 71 can be inserted into the inside of the embedding groove 77 to block the limiting tube 71. In the normal state, that is, when neither the first support portion 3 nor the second support portion 4 is subjected to force extrusion, at this time, the blocking members 72 inside the air inlet groove 5 and the air outlet groove 6 block the corresponding limiting tubes 71 under the elastic action of the elastic member 75, preventing the gas inside the first support portion 3 and the second support portion 4 from flowing to each other.

[0042] Squeezing the first support part 3 can make the gas inside the first support part 3 enter the inside of the gas outlet groove 6, and can make the blocking member 72 inside the gas outlet groove 6 move in the direction away from the limiting tube 71, so that the gas can enter the inside of the second support part 4.

[0043] Squeezing the second support part 4 can allow the gas inside the second support part 4 to enter the air inlet groove 5 , and can move the blocking member 72 inside the air inlet groove 5 away from the limiting tube 71 , so that the gas can enter the first support part 3 .

[0044] The outsole 1 is formed by integral injection molding of a rubber material, and the midsole 2 is formed by integral injection molding of a foam material.

[0045] The first support part 3 and the second support part 4 are both filled with gas. During use, due to the protrusion of the buttocks and the backward tilt of the center of gravity, it will be very strenuous for a person to stand for a long time, so the center of gravity needs to be adjusted. Otherwise, standing for a long time will cause brain hypoxia, leading to dizziness and other unexpected situations. Therefore, when standing for a long time, it is necessary to lean forward and adjust the center of gravity forward. Since modern shoes are set low in the front and high in the back and are elastic, if a person leans forward, the front sole will be elastically compressed, causing our heels to be excessively higher than our toes. This posture actually tightens our arch in disguise and passively lengthens the tendons of the sole that were originally used to resist gravity, keeping them in a tight and stressed state. This will put additional pressure on our arch, thereby causing additional impact on the ligaments, muscles, and soft tissues, and even damage. In this embodiment, when a person stands for a long time and leans forward, at this time, due to the forward center of gravity of the person, the forefoot will squeeze the first support part 3, causing the gas inside the first support part 3 to enter the inside of the air outlet groove 6 , so that the air pressure inside the air outlet groove 6 becomes larger, and the sealing member 72 inside the air outlet groove 6 is pushed to move in the direction away from the limiting tube 71, so that the gas inside the air outlet groove 6 enters the second supporting part 4, so that the pressure inside the second supporting part 4 becomes larger, and the top of the second supporting part 4 expands upward and contacts with the heel. At this time, the height of the second supporting part 4 is higher than the height of the first supporting part 3, and the sole is in a state of low front and high back, which is convenient for the body's center of gravity to be transferred to the toes, and can reduce the pressure on the knees and waist. At the same time, restricted by the heel, after the top of the second supporting part 4 contacts the heel, the top of the second supporting part 4 stops expanding upward, and the gas inside the first supporting part 3 cannot completely enter the second supporting part 4. The gas retained in the first supporting part 3 can support the forefoot, and the pressure inside the first supporting part 3 and the second supporting part 4 is relatively stable, which avoids excessive squeezing of the first supporting part 3, prevents the heel from being excessively higher than the toes, and avoids the arch of the foot from being tightened to cause additional impact on the ligaments, muscles, and soft tissues, thereby improving the comfort of the sole.

[0046] It should be noted that during the walking process, as Figure 10 shown from a to e, when a person walks, the heel contacts the ground first, and finally the forefoot contacts the ground. Existing shoes have resilience. If the resilience is too large, when walking, most of the force generated by our feet pushing against the ground will be absorbed by the sole. In order to maintain normal movement, we can only use more force, and after a long time, we will feel more tired. During use, the gas inside the first support part 3 and the second support part 4 can play a shock-absorbing and protective role. When the heel contacts the ground, the heel will squeeze the gas inside the second support part 4, causing the gas inside the second support part 4 to enter the inside of the air inlet groove 5, enabling the plugging member 72 inside the air inlet groove 5 to move away from the limiting pipe 71, and making the gas inside the second support part 4 enter the inside of the first support part 3. At this time, the internal pressure of the first support part 3 increases, and the top of the first support part 3 expands upward and contacts the forefoot, showing a forward-tilting state. On the one hand, reducing the gas inside the second support part 4 reduces its resilience, avoiding excessive resilience at the heel of the sole and improving the force-bearing effect of the heel on the ground. On the other hand, more gas inside the first support part 3 enables the forefoot to be stressed in advance, shortening the stress time of the forefoot. The increase in the gas inside the first support part 3 can also improve the shock-absorbing effect when the first support part 3 is squeezed. Subsequently, when the forefoot contacts the ground, the forefoot squeezes the first support part 3, causing the gas inside the first support part 3 to enter the inside of the air outlet groove 6, increasing the air pressure inside the air outlet groove 6, and pushing the plugging member 72 inside the air outlet groove 6 to move away from the limiting pipe 71, making the gas inside the air outlet groove 6 enter the inside of the second support part 4, increasing the internal pressure of the second support part 4, and causing the top of the second support part 4 to expand upward and contact the heel. On the one hand, reducing the gas inside the first support part 3 reduces its resilience, avoiding excessive resilience at the forefoot of the sole and preventing the force generated by the forefoot pushing against the ground from being largely absorbed by the sole. On the other hand, more gas inside the second support part 4 can improve the shock-absorbing effect when the second support part 4 is squeezed. Thus, during walking, by adjusting the degree of squeezing to regulate the exchange degree of the gas inside the second support part 4 and the first support part 3, the self-regulation of resilience is achieved. While ensuring the shock-absorbing effect, it avoids the phenomenon that the force generated by pushing against the ground is largely absorbed by the sole due to high resilience, achieving labor-saving progress and improving practicability.

[0047] When the user quickens the pace, the exchange efficiency of the gas inside the first support part 3 and the second support part 4 can be improved, and the expansion frequency of the tops of the first support part 3 and the second support part 4 becomes faster, which can massage the user's forefoot and heel to a certain extent and improve comfort.

[0048] The above embodiments are only several explanations of the concept and implementation of the present invention, and do not limit it. Under the concept of the present invention, technical solutions without substantial transformation are still within the protection scope.

Claims

1. A sole, comprising an outsole (1) and a midsole (2), characterized in that: The front sole part of the shoe midsole (2) is provided with a first support part (3), the heel part of the shoe midsole (2) is provided with a second support part (4), the interiors of the first support part (3) and the second support part (4) are both arranged as cavities, a horizontally arranged air inlet groove (5) and an air outlet groove (6) are formed inside the shoe midsole (2), and the air inlet groove (5) and the air outlet groove (6) are used for exchanging the gases inside the first support part (3) and the second support part (4); When the internal pressures of the first support part (3) and the second support part (4) increase, their tops can expand upward, and flow-limiting mechanisms (7) are arranged inside both the air inlet groove (5) and the air outlet groove (6), and the flow-limiting mechanisms (7) are used to limit the gas exchange flow rates inside the first support part (3) and the second support part (4).

2. The sole according to claim 1, characterized in that: The flow-limiting mechanism (7) includes a limiting tube (71), a sealing member (72) is arranged on one side of the limiting tube (71), a movable rod (73) is fixedly connected to the side of the sealing member (72) away from the limiting tube (71), a limiting ring (74) is slidably connected to the outer wall of the movable rod (73), an elastic member (75) is connected between the limiting ring (74) and the sealing member (72), the elastic member (75) is sleeved on the outer wall of the movable rod (73), and a plurality of fixing members (76) are fixedly connected to the outer wall of the limiting ring (74) and are distributed at equal intervals in a circumferential manner.

3. The sole according to claim 2, wherein: For the flow-limiting mechanism (7) located inside the air inlet groove (5), the outer wall of the limiting tube (71) is fixedly connected to the inner wall of the air inlet groove (5), the sealing member (72) is arranged on the side of the limiting tube (71) close to the first support part (3), one side of each fixing member (76) away from the limiting ring (74) is fixedly connected to the inner wall of the air inlet groove (5), and the limiting ring (74) is connected to the inner wall of the air inlet groove (5) through the fixing members (76).

4. The sole according to claim 3, characterized in that: For the flow-limiting mechanism (7) located inside the air outlet groove (6), the outer wall of the limiting tube (71) is fixedly connected to the inner wall of the air outlet groove (6), the sealing member (72) is arranged on the side of the limiting tube (71) close to the second support part (4), one side of each fixing member (76) away from the limiting ring (74) is fixedly connected to the inner wall of the air outlet groove (6), and the limiting ring (74) is connected to the inner wall of the air outlet groove (6) through the fixing members (76).

5. The sole according to claim 4, characterized in that: The diameters of the sealing member (72) and the limiting ring (74) are both smaller than the inner diameters of the air inlet groove (5) and the air outlet groove (6), both ends of the limiting tube (71) are provided with embedding grooves (77), and the side of the sealing member (72) close to the limiting tube (71) can be inserted into the corresponding embedding groove (77) to block the limiting tube (71).

6. The sole according to claim 5, characterized in that: Squeezing the first support part (3) can cause the gas inside the first support part (3) to enter the inside of the air outlet groove (6), can cause the plugging member (72) inside the air outlet groove (6) to move away from the limiting tube (71), and can cause gas to enter the inside of the second support part (4).

7. The sole according to claim 6, characterized in that: Squeezing the second support part (4) can cause the gas inside the second support part (4) to enter the inside of the air inlet groove (5), can cause the plugging member (72) inside the air inlet groove (5) to move away from the limiting tube (71), and can cause gas to enter the inside of the first support part (3).

8. The sole according to claim 7, characterized in that: The first support part (3) is connected to the shoe outsole (1) and the shoe midsole (2) by cementing, and the second support part (4) is connected to the shoe midsole (2) by cementing.

9. The sole according to claim 8, characterized in that: The shoe outsole (1) is integrally injection-molded from a rubber material, and the shoe midsole (2) is integrally injection-molded from a foam material.

10. The sole according to claim 9, characterized in that: Both the first support part (3) and the second support part (4) are made of polyester fiber material.

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