CN210492842U

CN210492842U - Folding-resistant PVC sole

Info

Publication number: CN210492842U
Application number: CN201921185692.6U
Authority: CN
Inventors: 蔡天慧; 沈豪; 陈荣华
Original assignee: Wenzhou Xiaolin Shoes Materials Co ltd
Current assignee: Wenzhou Xiaolin Shoes Materials Co ltd
Priority date: 2019-07-25
Filing date: 2019-07-25
Publication date: 2020-05-12
Anticipated expiration: 2029-07-25

Abstract

The utility model relates to a sole technical field aims at providing a resistant PVC sole of rolling over, including going to the bottom and intermediate layer, the length direction interval of following the sole on the up end that goes to the bottom is provided with a plurality of anti-crack grooves, be provided with in the anti-crack groove and have elastic bolster. When a person walks, the front end and the rear end of the sole can be folded along with the contact of the sole and the ground, so that the bottom surface of the sole is subjected to a pulling force which is far greater than the upper end surface of the sole, and the sole is cracked; the arrangement of the anti-cracking groove enables the stretching of the upper end surface of the lower sole to be replaced by the expansion of the opening at the upper end of the anti-cracking groove when the sole is folded, and the overall stretching of the bottom of the lower sole is slowed down, so that the anti-cracking effect of the sole is enhanced; and utilize the bolster to fill the anti-cracking groove, have elastic bolster can take place deformation along with the expansion in anti-cracking groove, the bearing capacity and the structural strength of reinforcing sole.

Description

Folding-resistant PVC sole

Technical Field

The utility model relates to a sole technical field, in particular to resistant PVC sole of rolling over.

Background

PVC is a polar non-crystalline high polymer, has stronger acting force among molecules, and is a hard and brittle material; the PVC sole made of high polymer materials is characterized by light weight, strong glossiness and fashionable and beautiful appearance, but the PVC sole is poor in flexibility and easy to crack at frequent bent parts of the front sole and the rear heel.

At present, a Chinese patent document with an authorization publication number of CN202233304U in the prior art discloses a sports shoe with a PVC modified sole, which comprises a sole and a vamp, wherein the sole is a PVC modified sole which is integrally formed by modified PVC and is distributed with powdered nitrile butadiene rubber. PVC modified sole has rubber sense, and is softer, more resistant roll over, more wear-resisting, has reduced macromolecular material's PVC modified sole's fracture rate, has prolonged the utility model discloses a life.

However, the softness of the PVC modified sole still cannot be compared with the sole made of pure rubber, and the sole still has higher fracture rate.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a resistant PVC sole of rolling over has strengthened the anti effect of splitting of sole.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a folding-resistant PVC sole comprises a lower bottom made of modified PVC material and an interlayer arranged at the upper end of the lower bottom, wherein an anti-cracking structure is arranged on the upper end surface of the lower bottom; the anti-cracking structure comprises a plurality of anti-cracking grooves which are arranged at intervals along the length direction of the sole, and an elastic buffer piece which is arranged in the anti-cracking grooves; the anti-cracking groove extends along the transverse direction vertical to the length direction of the sole.

Through adopting above-mentioned technical scheme, when the people is at the walking in-process, both ends can take place to turn over along with the contact of sole and ground around the sole, make the bottom surface of sole receive and be greater than the pulling force of sole upper end face to lead to the sole fracture, and the sole is thicker, the tearing force that its bottom surface received when turning over is bigger. The arrangement of the anti-cracking groove enables the stretching of the upper end surface of the lower sole to be replaced by the expansion of the opening at the upper end of the anti-cracking groove when the sole is folded, and the overall stretching of the bottom of the lower sole is slowed down, so that the anti-cracking effect of the sole is enhanced; and utilize the bolster to fill the anti-cracking groove, have elastic bolster can take place deformation along with the expansion in anti-cracking groove, the bearing capacity and the structural strength of reinforcing sole.

The utility model discloses further set up to: the buffer piece is an air cushion formed by hollow blow molding of polyurethane.

Through adopting above-mentioned technical scheme, the air cushion is through the air of inside saving in order providing elasticity, can slow down the shock that ankle and ground striking caused when walking every day, can also provide extra shock attenuation and bearing capacity, makes the dress more light comfortable.

The utility model discloses further set up to: the interlayer is a rubber layer made of rubber; the buffer piece is a rubber block integrally formed at the bottom of the interlayer.

By adopting the technical scheme, the anti-cracking groove is filled with the rubber block, the interlayer is tightly connected with the lower bottom, and the rubber has excellent elasticity, can perform corresponding deformation matching according to the anti-cracking groove and provides certain deformation resilience for the anti-cracking groove; and can provide extra shock-absorbing and bearing force, so that the wearing is more comfortable.

The utility model discloses further set up to: the buffer piece is a buffer piece which extends in a wave shape along the length direction of the sole; the buffer sheet is made of PVC modified material; the buffer sheet comprises a first waveform sheet, a second waveform sheet and a third waveform sheet which are sequentially arranged from bottom to top at intervals.

By adopting the technical scheme, the PVC modified material and the three-layer buffer sheet with the wave-shaped structure can provide elasticity towards the two sides of the anti-cracking groove, so that corresponding deformation matching is carried out according to the anti-cracking groove, and certain deformation resilience is provided for the anti-cracking groove; the buffer pieces are arranged at intervals up and down to provide enough space for deformation; and the three-layer buffer piece structure enhances the bearing capacity and the structural strength of the sole.

The utility model discloses further set up to: the buffer sheet is provided with a plurality of lower concave parts and upper convex parts, and the lower concave parts and the upper convex parts are alternately arranged to form a waveform; the widths of the lower concave parts of the first wave-shaped sheet, the second wave-shaped sheet and the third wave-shaped sheet are reduced in sequence, and the widths of the upper convex parts of the first wave-shaped sheet, the second wave-shaped sheet and the third wave-shaped sheet are increased in sequence.

Through adopting above-mentioned technical scheme, make and to form the comparatively even space of width between first wave form piece, second wave form piece and the third wave form piece to the produced expansion of anticracking groove or the contraction deformation of adaptation sole when receiving the ascending power in equidirectional.

The utility model discloses further set up to: connecting blocks are arranged between the buffer parts in the two adjacent anti-cracking grooves; the end parts of the first wave-shaped sheet, the second wave-shaped sheet and the third wave-shaped sheet are integrally formed with the connecting block.

Through adopting above-mentioned technical scheme, make first wave form piece, second wave form piece and the third wave form piece in all anti-cracking grooves can integrated into one piece through the connecting block, be convenient for production and installation.

The utility model discloses further set up to: and a positioning block which is upwards embedded into the lower end of the upper convex part is arranged in the anti-cracking groove corresponding to the upper convex part of the first wave-shaped sheet.

Through adopting above-mentioned technical scheme, utilize the locating piece to fix a position every wave form on the buffer chip, and the locating piece upwards fills the sunken department of first wave form piece bottom, has carried out certain degree's design to first wave form piece, makes arranging of wave form more even and neat.

The utility model discloses further set up to: the interlayer is a rubber layer made of rubber; and an embedded block embedded into the upper end of the lower concave part downwards is integrally formed at the bottom of the interlayer corresponding to the lower concave part of the third corrugated sheet.

Through adopting above-mentioned technical scheme, utilize the abaculus to fill the depressed part of third wave form piece upper end downwards, carried out the design of certain degree to the third wave form piece, and the abaculus is the rubber material with the intermediate layer, has splendid elasticity, can not restore to the deformation of buffer block and cause great influence.

The utility model discloses further set up to: the anti-cracking groove penetrates through the side wall of the lower bottom towards two sides; a circle of protective surrounding strip made of modified PVC materials is fixed on the side face of the lower bottom, the lower end of the protective surrounding strip downwards shields the two sides of the anti-cracking groove, and the upper end of the protective surrounding strip upwards wraps the side face of the interlayer.

By adopting the technical scheme, the PVC material can show better glossiness and streamline shape, the two ends of the anti-cracking groove are shielded by the protective surrounding strips, the integral attractiveness of the sole can be improved, the buffer piece and the interlayer can be prevented from being rubbed by foreign objects, and the phenomenon of degumming can be prevented; and utilize the outside parcel of protection foxing with going to the bottom, restrict the front and back both ends of going to the bottom, prevent that the bolster from stretching the back and leading to the front and back both ends of going to the bottom outwards protrusion.

To sum up, the beneficial effects of the utility model are that:

1. when a person walks, the front end and the rear end of the sole can be folded along with the contact of the sole and the ground, so that the bottom surface of the sole is subjected to a pulling force which is far greater than the upper end surface of the sole, the sole is cracked, and the thicker the sole is, the greater the tearing force is applied to the bottom surface of the sole during folding; the arrangement of the anti-cracking groove enables the stretching of the upper end surface of the lower sole to be replaced by the expansion of the opening at the upper end of the anti-cracking groove when the sole is folded, and the overall stretching of the bottom of the lower sole is slowed down, so that the anti-cracking effect of the sole is enhanced; the anti-cracking groove is filled with the buffer piece, the elastic buffer piece can deform along with the expansion of the anti-cracking groove, and the bearing capacity and the structural strength of the sole are enhanced;

2. the PVC material can show better glossiness and streamline, and the two ends of the anti-cracking groove are shielded by the protective surrounding strips, so that the integral attractiveness of the sole can be improved, the buffer piece and the interlayer can be prevented from being rubbed by foreign objects, and the degumming phenomenon can be prevented; and utilize the outside parcel of protection foxing with going to the bottom, restrict the front and back both ends of going to the bottom, prevent that the bolster from stretching the back and leading to the front and back both ends of going to the bottom outwards protrusion.

Drawings

FIG. 1 is a schematic overall structure diagram of the first embodiment;

FIG. 2 is a schematic diagram of an exploded structure of the first embodiment;

FIG. 3 is a schematic cross-sectional view of the first embodiment;

FIG. 4 is an enlarged schematic view at A in FIG. 3;

FIG. 5 is a schematic sectional view of the second embodiment;

FIG. 6 is a schematic sectional view of the third embodiment.

Reference numerals: 1. a lower bottom; 11. a crack-preventing groove; 111. positioning blocks; 2. an interlayer; 21. an insert block; 3. a buffer sheet; a. an upper convex portion; b. a lower recess; 31. a first waveform sheet; 32. a second waveform slice; 33. a third waveform sheet; 34. connecting blocks; 4. a protective foxing; 5. an air cushion; 6. a rubber block.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

First embodiment, this embodiment discloses a folding-resistant PVC sole, as shown in fig. 1, comprising a lower sole 1, a midsole 2 located between the lower sole 1 and a midsole; the lower bottom 1 is integrally formed by modified PVC material, and anti-skid lines are formed on the bottom surface of the lower bottom; the interlayer 2 is made of rubber and is fixed on the lower bottom 1 through adhesive.

As shown in fig. 2, four integrally formed anti-crack grooves 11 are arranged on the upper end surface of the lower sole 1 at intervals along the length direction of the sole, the anti-crack grooves 11 extend along the transverse direction of the sole and penetrate through the side walls of the two sides of the lower sole 1, and elastic buffer members are arranged in the anti-crack grooves 11. When a person walks, the sole can be folded along with the contact between the front palm part and the rear heel part and the ground, so that the bottom surface of the sole is subjected to a pulling force which is far greater than the upper end surface of the sole, wherein the rubber interlayer 2 has better elasticity and can be stretched along with the pulling force; and the setting of the anti-cracking groove 11 makes the interlayer 2 replace the stretching of the upper end surface of the lower sole 1 by the expansion of the upper end opening of the anti-cracking groove 11 when stretching, and slows down the overall stretching of the bottom of the lower sole 1, thereby enhancing the anti-cracking effect of the sole.

As shown in fig. 2 and 3, the cushion member is a cushion sheet 3 extending in a wave shape along the longitudinal direction of the sole, and the cushion sheet 3 is formed with a plurality of lower concave portions b and upper convex portions a, and the lower concave portions b and the upper convex portions a are alternately arranged to form a wave shape. And all be connected through integrated into one piece's connecting block 34 between the buffer blade 3 in two adjacent anti-crack groove 11 to make the buffer blade 3 in four anti-crack grooves 11 can direct integrated into one piece, only need in the installation with connecting block 34 through adhesive or nail be fixed in on going to the bottom 1 can.

As shown in fig. 3 and 4, the buffer sheet 3 is made of a PVC modified material and includes a first wave-shaped sheet 31, a second wave-shaped sheet 32 and a third wave-shaped sheet 33 which are sequentially arranged from bottom to top at intervals, two ends of the first wave-shaped sheet 31, the second wave-shaped sheet 32 and the third wave-shaped sheet 33 are all connected to a connecting block 34, and the bearing capacity and the structural strength of the sole are enhanced through the three-layer buffer sheet 3 structure. And the widths of the lower concave parts b of the first wave-shaped sheet 31, the second wave-shaped sheet 32 and the third wave-shaped sheet 33 are sequentially reduced, and the widths of the upper convex parts a are sequentially increased, so that gaps with uniform widths can be formed among the first wave-shaped sheet 31, the second wave-shaped sheet 32 and the third wave-shaped sheet 33, sufficient space is provided for deformation, and expansion or contraction deformation of the anti-cracking grooves 11 when the sole is subjected to forces in different directions is adapted.

As shown in fig. 3 and 4, a positioning block 111 is integrally formed in the anti-crack groove 11 corresponding to the upper protrusion a of the first wave-shaped piece 31 and is upwardly inserted into the lower end of the upper protrusion a; and the bottom of the interlayer 2 is integrally formed with an insert 21 which is inserted into the upper end of the lower recess b at the position corresponding to the lower recess b of the third wave plate 33. Positioning each waveform on the buffer sheet 3 by using the positioning block 111 and the embedded block 21, filling the concave parts on the first waveform sheet 31 and the third waveform sheet 33 by using the positioning block 111 and the embedded block 21 respectively, and shaping the first waveform sheet 31 and the third waveform sheet 33 to a certain degree, so that the arrangement of the waveforms is more uniform and orderly; the insert 21 and the interlayer 2 are made of rubber, so that the elasticity is excellent, and the deformation recovery of the buffer sheet 3 is not greatly influenced.

As shown in fig. 1 and 2, the anti-crack groove 11 penetrates through the side walls of the lower bottom 1 towards two sides; and a circle of protective surrounding strip 4 made of modified PVC material is fixed on the side surface of the lower bottom 1 through adhesive, the lower end of the protective surrounding strip 4 downwards shields the two sides of the anti-cracking groove 11, and the upper end upwards wraps the side surface of the interlayer 2. The PVC material can show better glossiness and streamline, and the two ends of the anti-cracking groove 11 are shielded by the protective surrounding strips 4, so that the integral attractiveness of the sole can be improved, the buffer piece and the interlayer 2 can be prevented from being rubbed by foreign objects, and the degumming phenomenon can be prevented; and utilize the outside parcel of protection foxing 4 with lower bottom 1, restrict the front and back both ends of lower bottom 1, prevent that the bolster from stretching the back and leading to the front and back both ends of lower bottom 1 outwards protrusion.

Second embodiment, the present embodiment is different from the first embodiment in that, as shown in fig. 5, the buffering member is a polyurethane hollow blow molded air cushion 5, the air cushion 5 is fixed in the crack preventing groove 11 by an adhesive, and the crack preventing groove 11 is completely filled. The air cushion 5 provides elasticity through the air stored inside, can relieve the shock caused by the impact between the ankle and the ground when walking every day, and can provide additional shock-absorbing and supporting force, so that the wearing is more comfortable.

Third embodiment, the difference between the first embodiment and the second embodiment is that, as shown in fig. 6, the buffer member is a rubber block 6 integrally formed at the bottom of the interlayer 2. The rubber block 6 is used for filling the anti-cracking groove 11, the interlayer 2 is tightly connected with the lower bottom 1, the rubber has excellent elasticity, can be correspondingly deformed and matched according to the anti-cracking groove 11, and provides a certain deformation recovery capability for the anti-cracking groove 11; and can provide extra shock-absorbing and bearing force, so that the wearing is more comfortable.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a resistant PVC sole that rolls over which characterized in that: the anti-cracking device comprises a lower bottom (1) made of modified PVC materials and an interlayer (2) arranged at the upper end of the lower bottom (1), wherein an anti-cracking structure is arranged on the upper end surface of the lower bottom (1); the anti-cracking structure comprises a plurality of anti-cracking grooves (11) which are arranged at intervals along the length direction of the sole, and elastic buffer pieces which are arranged in the anti-cracking grooves (11); the anti-cracking groove (11) extends along the transverse direction perpendicular to the length direction of the sole.

2. The fold-resistant PVC shoe sole according to claim 1, wherein: the buffer piece is an air cushion (5) formed by hollow blow molding of polyurethane.

3. The fold-resistant PVC shoe sole according to claim 1, wherein: the interlayer (2) is a rubber layer made of rubber; the buffer piece is a rubber block (6) integrally formed at the bottom of the interlayer (2).

4. The fold-resistant PVC shoe sole according to claim 1, wherein: the buffer piece is a buffer piece (3) extending in a wave shape along the length direction of the sole; the buffer sheet (3) comprises a first waveform sheet (31), a second waveform sheet (32) and a third waveform sheet (33) which are sequentially arranged from bottom to top at intervals.

5. The fold-resistant PVC shoe sole according to claim 4, wherein: the buffer sheet (3) is provided with a plurality of lower concave parts (b) and upper convex parts (a), and the lower concave parts (b) and the upper convex parts (a) are alternately arranged to form a waveform; the widths of the lower concave parts (b) of the first wave-shaped sheet (31), the second wave-shaped sheet (32) and the third wave-shaped sheet (33) are sequentially reduced, and the widths of the upper convex parts (a) are sequentially increased.

6. The fold-resistant PVC shoe sole according to claim 4, wherein: connecting blocks (34) are arranged between the buffer parts in the two adjacent anti-cracking grooves (11); the end parts of the first wave-shaped sheet (31), the second wave-shaped sheet (32) and the third wave-shaped sheet (33) are integrally formed with the connecting block (34).

7. The fold-resistant PVC shoe sole according to claim 5, wherein: and a positioning block (111) which is upwards embedded into the lower end of the upper convex part (a) is arranged in the anti-cracking groove (11) corresponding to the upper convex part (a) of the first corrugated sheet (31).

8. The fold-resistant PVC shoe sole according to claim 5, wherein: the interlayer (2) is a rubber layer made of rubber; and an embedded block (21) which is downwards embedded into the upper end of the lower concave part (b) is integrally formed at the bottom of the interlayer (2) corresponding to the lower concave part (b) of the third corrugated sheet (33).

9. The fold-resistant PVC shoe sole according to claim 1, wherein: the anti-cracking groove (11) penetrates through the side wall of the lower bottom (1) towards two sides; a circle of protective surrounding strip (4) made of modified PVC materials is fixed on the side face of the lower bottom (1), the lower end of the protective surrounding strip (4) downwards shields the two sides of the anti-cracking groove (11), and the upper end upwards wraps the side face of the interlayer (2).