An omnidirectional shoe stretcher

Abstract

The application discloses an all-directional shoe expander, which comprises a sole last, a heel last, an instep last, a base, a screw pipe, a screw rod and a sliding and pushing structure, the base is installed at the front of the screw rod and behind the sliding and pushing structure, the sole last is movably assembled with the base from left and right sides, the instep last is hinged with the base and covers the sole last to wrap the base and the sliding and pushing structure inside, the sliding and pushing structure comprises a sliding wedge, the left and right sides of the sliding wedge are provided with pushing arms, driving grooves are arranged at the positions of the left and right half sole lasts towards the sliding wedge, the driving grooves are provided with inclined surfaces, the sliding wedge is fixed at the front end of the screw rod, the pushing arms are inserted into the driving grooves and opposite to the inclined surfaces, and the instep last is opposite to the sliding wedge. Thus, the supporting and expanding functions of the up, down, left and right directions and the heel can be realized simultaneously, the supporting and expanding functions of the left and right directions and the up and down directions can be realized independently by controlling the switch, and the shoe expander can also be used for removing the odor and peculiar smell in the shoes.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of shoe auxiliary tools, in particular to a device for expanding the space in a shoe. BACKGROUND

[0002] Sometimes, the size of a newly purchased shoe is too small, or the shoe is too tight due to other factors, which brings inconvenience and annoyance to the consumer. For this reason, people have invented shoe expanders that can expand the shoe to some extent to fit the wearer. However, the existing shoe expanders can only adjust the expansion of the front part of the shoe, and cannot adjust the expansion of the heel part. Therefore, the applicant proposes a front and rear adjustable shoe expander (CN210696220U) that can simultaneously or individually expand the front part and the heel part of the shoe. However, this solution cannot achieve omnidirectional expansion of the shoe, i.e., front, rear, left, right, up, and down, and therefore the function is not perfect. In addition, this solution cannot be used to help remove odors from the shoe. SUMMARY

[0003] The present application provides an omnidirectional shoe expander that is more reasonable in structure design, more complete in function, and better meets the needs of users.

[0004] To solve the above technical problems, the present application adopts the following technical solution: an omnidirectional shoe expander, comprising a sole last body, a heel last body, a screw pipe, a screw rod, and a sliding and pushing structure, the sliding and pushing structure is installed at the front end of the screw rod, the sole last body is connected to the sliding and pushing structure, the screw pipe is installed on the screw rod at a position behind the sole last body, and the heel last body is installed on the screw pipe; the sole last body adopts a structure that is connected from left to right, characterized in that: it further comprises a instep last body and a base, the base is installed at the front part of the screw rod and behind the sliding and pushing structure, and the sole last body is movably assembled with the base from left to right; the instep last body is hinged to the base and covers the sole last body to enclose the base and the sliding and pushing structure inside; the sliding and pushing structure comprises a sliding wedge with an inclined top surface, and the left and right sides of the sliding wedge have outwardly extending pushing arms; a driving groove is provided at the position of the left and right half sole last bodies facing the sliding wedge, and an inclined surface is provided in the driving groove; the sliding wedge is fixed at the front end of the screw rod, the pushing arms are inserted into the driving groove and opposite to the inclined surface, the bottom surface of the instep last body is opposite to the inclined structure of the sliding wedge, and the instep last body is pushed up by the top surface of the sliding wedge and the inclined surface through the forward movement of the screw rod when it rotates, to achieve the outward expansion of the sole last body and the upward expansion of the instep last body.

[0005] Further, a toggle switch is provided on the instep last body, which is an inclined structure matched with the top surface of the sliding wedge, and the upward expansion function of the instep last body is realized by toggling the toggle switch to be opposite to the sliding wedge, while the upward expansion function of the instep last body is released by toggling the toggle switch to be staggered with the sliding wedge.

[0006] Further, the installation groove is arranged on the instep last body, the fixed rod is arranged below the installation groove, and the toggle switch is installed on the fixed rod to form a sliding structure; the toggle switch is connected with a switch cap, the switch cap is arranged in the installation groove to form a toggle structure for the toggle switch, and the toggle switch is aligned or staggered with the sliding wedge by sliding the switch cap.

[0007] Further, the shaft seat is arranged on the front bottom surface of the instep last body, the instep last body is hinged with the base through a connecting shaft penetrating the shaft seat and the base. In this way, the instep last body can realize the up-down expansion function when subjected to the upward force, and can automatically rotate and fall to realize the reset when the upward force is removed.

[0008] Further, the base is installed on the positioning pin, the positioning pin is transversely arranged on the screw rod in a screwing manner, and the two half-sole last bodies are connected with the positioning pin and can also be connected with the left and right half-sole last bodies through the elastic mechanism such as the tension spring, so that the half-sole last bodies can automatically reset.

[0009] Further, the accommodation cavity for containing the deodorant is arranged on the front part of the half-sole last body and the lower part of the heel last body, the side wall of the half-sole last body and the side wall of the heel last body are respectively provided with the air holes, the accommodation cavity is communicated with the outside through the air holes, and the deodorant can absorb the peculiar smell in the shoes through the air holes.

[0010] Further, the holding part is arranged at the tail end of the screw pipe and has a four-leaf clover shape. When the screw rod is rotated, the holding part is held by the other hand, so that the operation is more convenient and labor-saving.

[0011] Further, the handle is installed at the tail end of the screw rod, and the screw rod is convenient to rotate.

[0012] The instep last body, the heel last body, the half-sole last body, the sliding wedge, the base, the screw rod and other mechanisms are cooperated, so that the up-down, left-right and heel expansion functions can be realized, the left-right and up-down expansion functions can be realized by controlling the toggle switch, and the application diversity is expanded. In addition, the deodorant storage space and the air holes are arranged on the half-sole last body and the heel last body, so that the shoes can also be used to help remove the odor and peculiar smell in the shoes. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a whole schematic view of the present application;

[0014] Figure 2 It is a schematic view of the present application after removing the half-sole last body;

[0015] Figure 3 It is a schematic view of the present application after removing the base and the half-sole last body.

[0016] Figure 4 Figure 2 is a schematic view of the present invention after the instep last body is removed.

[0017] Figure 5 Figure 3 is an exploded schematic view of the present invention.

[0018] In the figure, 1 is the instep last body, 11 is the driving slot, 12 is the inclined surface, 13 is the air hole, 2 is the instep last body, 21 is the mounting slot, 22 is the fixed rod, 23 is the shaft seat, 24 is the connecting shaft, 3 is the heel last body, 31 is the air hole, 4 is the base, 5 is the sliding wedge, 51 is the pushing arm, 6 is the toggle switch, 61 is the switch cap, 7 is the screw pipe, 71 is the holding part, 8 is the screw rod, 81 is the handle, and 9 is the positioning pin. DETAILED DESCRIPTION

[0019] In the embodiment, referring to Figures 1-5 , the omnidirectional shoe expander comprises the instep last body 1, the heel last body 3, the screw pipe 7, the screw rod 8, and the sliding and pushing structure. The sliding and pushing structure is installed at the front end of the screw rod 8. The instep last body 1 is connected to the sliding and pushing structure. The screw pipe 7 is installed on the screw rod 8 at a position behind the instep last body 1. The heel last body 3 is installed on the screw pipe 7. The instep last body 1 and the heel last body 3 both adopt the structure of being connected from left to right. The omnidirectional shoe expander also comprises the instep last body 2 and the base 4. The base 4 is installed at the front part of the screw rod 8 and behind the sliding and pushing structure. The instep last body 1 is movably assembled with the base 4 from left to right. The instep last body 2 is hinged to the base 4 and covers the instep last body 1 to wrap the base 4 and the sliding and pushing structure inside. The sliding and pushing structure comprises the sliding wedge 5 with an inclined top surface. The left and right sides of the sliding wedge 5 have outwardly extending pushing arms 51. The driving slot 11 is arranged at the position of the left and right half instep last body 1 facing the sliding wedge 5. The inclined surface 12 is arranged in the driving slot 11. The sliding wedge 5 is fixed at the front end of the screw rod 8. The pushing arms 51 are inserted into the driving slot 11 and opposite to the inclined surface 12. The bottom surface of the instep last body 2 is opposite to the inclined structure of the sliding wedge 5. The top surface of the pushing arms 51 pushes the inclined surface 12 and the top surface of the sliding wedge 5 to push the instep last body 2 upward when the screw rod 8 rotates to stretch forward, so as to realize the outward stretching of the instep last body 1 and the upward stretching of the instep last body 2.

[0020] The toggle switch 6 is arranged on the instep last body 2. The toggle switch 6 is an inclined structure matched with the top surface of the sliding wedge 5. When the toggle switch 6 is toggled to be opposite to the sliding wedge 5, the upward stretching function of the instep last body 2 can be realized by rotating the screw rod 8. When the toggle switch 6 is toggled to be staggered with the sliding wedge 5, the upward stretching function of the instep last body 2 is released. The handle 81 is installed at the tail end of the screw rod 8 to facilitate the rotation of the screw rod 8.

[0021] The installation groove 21 is arranged on the instep last 2, the fixed rod 22 is arranged below the installation groove 21, the toggle switch 6 is installed on the fixed rod 22 to form a slidable structure; the toggle switch 6 is connected with the switch cap 61, the switch cap 61 is arranged in the installation groove 21 to form a toggle structure of the toggle switch 6, the toggle switch 6 is pushed to slide and align or stagger with the sliding wedge 5 by the toggle switch cap 61.

[0022] The shaft seat 23 is arranged on the front bottom surface of the instep last 2, the instep last 2 is hinged with the base 4 by the connecting shaft 24 passing through the shaft seat 23 and the base 4. Thus, the instep last 2 can realize the up-down expansion function when being subjected to the upward force, and can automatically rotate and fall to realize the reset when the upward force is removed.

[0023] The base 4 is installed on the positioning pin 9, the positioning pin 9 is transversely arranged on the screw rod 8 in a screwing manner, the two half instep lasts 1 are connected with the positioning pin 9, and the left and right half instep lasts 1 can also be connected by the elastic mechanism such as the tension spring, so that the instep last 1 can automatically reset.

[0024] The accommodation cavities for containing the deodorant are arranged on the front of the instep last 1 and the lower part of the heel last 3, the side walls of the instep last 1 and the heel last 3 are respectively provided with the air holes 13, 31, the accommodation cavities are communicated with the outside through the air holes 13, 31, the deodorant can absorb the peculiar smell in the shoes through the air holes 13, 31, and the deodorization function is realized.

[0025] The holding part 71 is arranged at the tail end of the screw pipe 7, and the holding part 71 is in the shape of a four-leaf clover. When the screw rod 8 is rotated, the other hand holds the holding part 71, so that the operation is more convenient and labor-saving.

[0026] The above has made a detailed description of the present application, the above description is only the preferred embodiment of the present application, and cannot limit the scope of the present application, that is, all equivalent changes and modifications made according to the scope of the present application should still be included in the scope of the present application.

Claims

1. An omnidirectional shoe expander, comprising a foot last, a heel last, a screw tube, a screw rod, and a sliding mechanism, wherein the sliding mechanism is mounted at the front end of the screw rod, the foot last is connected to the sliding mechanism, the screw tube is mounted on the screw rod at a position behind the foot last, and the heel last is mounted on the screw tube; the foot last adopts a structure in which the left and right halves are joined together, characterized in that: It also includes an instep last and a base. The base is installed at the front of the screw and located behind the sliding push structure. The foot last is movably assembled with the base from the left and right sides. The instep last is hinged to the base and covers the foot last, enclosing the base and the sliding push structure inside. The sliding push structure includes a sliding wedge with an inclined top surface. The left and right sides of the sliding wedge have outwardly extending push arms. A drive groove is provided at the position of the left and right half of the foot last facing the sliding wedge. An inclined surface is provided in the drive groove. The sliding wedge is fixed to the front end of the screw. The push arm is inserted into the drive groove and faces the inclined surface. The bottom surface of the instep last is opposite to the inclined structure of the sliding wedge. The forward extension movement generated when the screw rotates causes the push arm to push the inclined surface and the top surface of the sliding wedge to push the instep last to achieve outward expansion of the foot last and upward expansion of the instep last. A toggle switch is provided on the instep last. The toggle switch is an inclined structure that matches the top surface of the sliding wedge. When the toggle switch is moved to be vertically aligned with the sliding wedge, the upward expansion function of the instep last is realized. When the toggle switch is moved to be offset from the sliding wedge, the upward expansion function of the instep last is deactivated. An installation groove is provided on the instep last, and a fixing rod is provided below the installation groove. The toggle switch is installed on the fixing rod to form a sliding structure. The toggle switch is connected to a switch cap, which is set in the installation groove to form a toggle structure for the toggle switch. By pushing the toggle switch to slide and align with or offset from the sliding wedge, the toggle switch is pushed by the toggle switch cap.

2. The omnidirectional shoe expander according to claim 1, characterized in that: A bearing seat is provided on the bottom front part of the instep last. A connecting shaft passes through the bearing seat and the base to hinge the instep last to the base.

3. The omnidirectional shoe expander according to claim 1, characterized in that: The base is mounted on a positioning pin, which is horizontally installed on the screw rod by a screw connection. The two halves of the foot last are respectively connected to the positioning pin.

4. The omnidirectional shoe expander according to claim 1, characterized in that: The front part of the foot last and the lower part of the heel last are respectively provided with a container for holding deodorizing agent. The side wall of the foot last and the side wall of the heel last where the container is located are respectively provided with ventilation holes, which connect the container to the outside.

5. The omnidirectional shoe expander according to claim 1, characterized in that: A gripping part is provided at the tail end of the spiral tube, and the gripping part is shaped like a four-leaf clover.

6. The omnidirectional shoe expander according to claim 1, characterized in that: A handle is installed at the tail end of the screw.

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