Shoe tree structure

Abstract

According to the technical scheme, the shoe tree structure is characterized by comprising a first shoe tree body, a second shoe tree body and a third shoe tree body, a first installation part and a second installation part are arranged on the first shoe tree body, gasket grooves are formed in the first installation part and the second installation part, and gasket bodies are detachably installed in the gasket grooves; the second shoe last body and the third shoe last body are each provided with an assembling groove matched with the gasket body. Convex ribs are arranged on the second shoe last body and the third shoe last body and located on the inner sides of the assembling grooves. Grooves are formed in the first mounting part and the second mounting part and located on the inner side of the gasket groove, and the shoe tree structure can prevent liquid from permeating in the injection molding process while being convenient to assemble.

Description

Technical Field

[0001] The utility model relates to a shoe last, and more specifically, to a shoe last structure. Background Art

[0002] The shoe last plays a vital role in the production and wearing of shoes. As the molding mold of the shoe, the shoe last not only determines the shape and style of the shoe, but also determines whether the shoe fits the foot and whether it can protect the foot.

[0003] In the prior art, shoe lasts are mostly of one-piece construction, and different shoe lasts are required for shoe uppers of different heights. In addition, due to the one-piece construction of the shoe last, the shoes are easily torn, damaged, wrinkled, and other problems when the shoe last is removed, resulting in the shoe being damaged.

[0004] In order to solve the above-mentioned problems, a shoe last with publication number CN220607529U is proposed in the prior art. Through the design of the first last, the second last, the third last and the movable joint, it is convenient to avoid the problems of tearing, damage, wrinkling and so on of the shoes when taking off the last. However, since most of them are only fixed by pins, molten liquid infiltrates during the injection molding process, thereby making it impossible to separate the first last, the second last and the third last normally, causing the device to fail. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a shoe last structure, which can be easily assembled and prevent liquid from penetrating during the injection molding process.

[0006] To achieve the above object, the utility model provides the following technical solution: a shoe last structure, comprising a first last body, a second last body and a third last body, the first last body is provided with a first mounting portion and a second mounting portion, the first mounting portion and the second mounting portion are both provided with a gasket groove, and a gasket body is detachably mounted in the gasket groove;

[0007] The second last and the third last are both provided with assembly grooves that match the gasket body;

[0008] The second last and the third last are both provided with convex ribs, and the convex ribs are located on the inner side of the assembly groove;

[0009] The first mounting portion and the second mounting portion are both provided with a groove, and the groove is located at the inner side of the gasket groove.

[0010] In summary, the utility model has the following beneficial effects: during the installation of the second last and the third last with the first last, the joints between the two are doubly sealed through the design of the gasket body and the convex ribs, and the convex ribs are inserted into the grooves. During the sole injection molding process of the upper injection molding process, the molten liquid can be prevented from penetrating, thereby improving the shoemaking effect.

[0011] A gasket with a matching shape is arranged on the periphery of the rib, and under the action of the gasket groove and the assembly groove, the gasket is pressed and contacted at the connection, which can further reduce the gap at the connection, thereby further improving the effect of preventing the molten liquid from penetrating.

[0012] Since the first last and the third last are connected at the inclined surfaces and are detachably connected through convex ribs, the third last can be taken out first during the last removal process to reduce the overall thickness of the last and prevent the shoes from being torn, damaged, or wrinkled. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of the structure of a shoe last;

[0014] Figure 2 Schematic diagram of the separation structure of the shoe last;

[0015] Figure 3 A schematic diagram of the structure of the connection between the shoe last and the connecting block;

[0016] Figure 4 is a top view of a shoe last;

[0017] Figure 5 A cross-sectional view of the connection block.

[0018] Figure numerals: 1. first last; 11. first mounting portion; 111. gasket ring; 12. second mounting portion; 121. gasket rod; 13. groove; 14. mounting hole; 15. threaded connection hole; 2. second last; 21. assembly groove; 3. third last; 4. convex rib; 5. connecting block; 51. mounting column; 52. connecting groove; 53. limit plate; 54. through hole. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. The same parts are represented by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "bottom surface" and "top surface", "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0020] Reference Figures 1 to 5As shown, in order to achieve the above purpose, the utility model provides the following technical solutions: a shoe last structure, including a first last body 1, a second last body 2 and a third last body 3, the first last body 1 is provided with a first mounting portion 11 and a second mounting portion 12, the first mounting portion 11 and the second mounting portion 12 are both provided with a gasket groove, and a gasket body is detachably installed in the gasket groove;

[0021] The second shoe last 2 and the third shoe last 3 are both provided with an assembly groove 21 that matches with the gasket body;

[0022] The second shoe last 2 and the third shoe last 3 are both provided with convex ribs 4, and the convex ribs 4 are located on the inner side of the assembly groove 21;

[0023] A groove 13 is provided on each of the first mounting portion 11 and the second mounting portion 12 . The groove 13 is located inside the gasket groove.

[0024] In the design of the utility model, the first last 1 corresponds to the ankle to the sole; the second last 2 corresponds to the ankle to the heel; and the third last 3 corresponds to the instep.

[0025] During the installation of the second last 2 and the third last 3 with the first last 1, the gasket body and the convex rib 4 are designed to double seal the joints between them. The convex rib 4 will be inserted into the groove 13. During the sole injection molding process of the upper injection molding process, the molten liquid can be prevented from penetrating, thereby improving the shoemaking effect.

[0026] A gasket with a matching shape is arranged on the periphery of the rib 4, and under the action of the gasket groove and the assembly groove 21, the gasket is pressed and contacted at the connection, which can further reduce the gap at the connection, thereby further improving the effect of preventing the molten liquid from penetrating.

[0027] Since the first last 1 and the third last 3 are connected at the inclined plane and are detachably connected through the convex rib 4, the third last 3 can be taken out first during the last removal process to reduce the overall thickness of the last and prevent the shoe from being torn, damaged or wrinkled.

[0028] The connecting end of the second shoe last 2 and the first mounting portion 11 are both arranged in a ring-shaped structure;

[0029] The gasket body includes a gasket ring 111, and the gasket ring 111 is detachably mounted on the first mounting portion 11;

[0030] The convex rib 4 on the second last 2 is arranged in an annular structure.

[0031] The gasket ring 111 of the annular structure can be disposed around the first mounting portion 11 , thereby comprehensively protecting the position of the first mounting portion 11 and preventing liquid from penetrating.

[0032] Moreover, since the position of the first installation part 11 itself is in a similar annular structure and the installation orientation is from top to bottom, the design of this structure can not only ensure the effectiveness of sealing but also ensure the convenience of installation.

[0033] The connecting end of the third last 3 and the second installation part 12 are both arranged in an arc structure;

[0034] The gasket body includes gasket rods 121. There are two groups of gasket rods 121, and both can be detachably installed on the second installation part 12.

[0035] The gasket rod 121 is arranged in an "丄" shape structure.

[0036] With this structure design, there is a horizontally arranged rod body below the gasket rod 121. Thus, under the cooperation of the two gasket rods 121, the protection area under the shoe last can be effectively increased.

[0037] There are two groups of ribs 4 on the third last 3, and both are arranged in a "T" shape structure.

[0038] Since the rib 4 is arranged in a T-shaped structure and there is a horizontal convex block above the rib 4, the position of the third last 3 during installation can be limited through the design of the gasket rod 121 and the rib 4, avoiding the up and down displacement of the third last 3 and ensuring the stability of subsequent operations.

[0039] A connecting block 5 is detachably installed at the upper end of the first last 1. The design of this connecting block 5 can increase the height of the shoe upper and can be applicable to high-top, mid-top, and low-top shoes.

[0040] An installation hole 14 is provided at the upper end of the first last 1, and an installation post 51 is provided at the lower end of the connecting block 5. The installation post 51 and the installation hole 14 are connected by interference fit. The design of interference fit can strengthen the installation strength between the connecting block 5 and the first last 1.

[0041] As Figure 4 shown, since the second last 2 and the third last 3 are respectively on the front and rear sides of the first last 1, the first installation hole 14 is arranged left and right.

[0042] A threaded connection hole 15 is provided at the upper end of the first last 1, a connection groove 52 is provided through the connecting block 5, a limiting plate 53 is provided in the connection groove 52, and a through hole 54 corresponding to the threaded connection hole 15 is provided on the limiting plate 53.

[0043] The connection strength between the connecting block 5 and the first last 1 can be strengthened by connecting a screw rod in the connection groove 52, ensuring the stability of subsequent production.

[0044] A threaded structure is provided on the groove wall of the connection groove 52.

[0045] An operating handle can be externally connected to the connection groove 52.

[0046] The design of the threaded structure can facilitate the external connection of an operating handle, thereby providing convenience during shoe last removal or other operations.

[0047] The above are only preferred implementations of the utility model. The protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of ​​the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.

Claims

1. A shoe last structure, characterized by: It includes a first last (1), a second last (2) and a third last (3). A first mounting portion (11) and a second mounting portion (12) are provided on the first last (1). Gasket grooves are provided on both the first mounting portion (11) and the second mounting portion (12), and a gasket body is detachably mounted in the gasket groove. Assembly grooves (21) that cooperate with the gasket body are provided on both the second last (2) and the third last (3). Ribs (4) are provided on both the second last (2) and the third last (3), and the ribs (4) are located inside the assembly grooves (21). Grooves (13) are provided on both the first mounting portion (11) and the second mounting portion (12), and the grooves (13) are located inside the gasket grooves.

2. A shoe last structure according to claim 1, characterized in that: The connecting end of the second last (2) and the first mounting portion (11) are both arranged in a ring structure. The gasket body includes a gasket ring (111), and the gasket ring (111) is detachably mounted on the first mounting portion (11). The ribs (4) on the second last (2) are arranged in a ring structure.

3. A shoe last structure according to claim 1, characterized in that: The connecting end of the third last (3) and the second mounting portion (12) are both arranged in an arc structure. The gasket body includes gasket rods (121). There are two groups of gasket rods (121), and both can be detachably mounted on the second mounting portion (12).

4. A shoe last structure according to claim 3, characterized in that: The gasket rods (121) are arranged in an "丄” shape structure.

5. The shoe last structure according to claim 3, characterized in that: There are two groups of ribs (4) on the third last (3), and both are arranged in a "T” shape structure.

6. A shoe last structure according to any one of claims 1 to 5, characterized in that: A connecting block (5) is detachably mounted on the upper end of the first last (1).

7. A shoe last structure according to claim 6, characterized in that: An installation hole (14) is provided on the upper end of the first last (1), and an installation post (51) is provided on the lower end of the connecting block (5). The installation post (51) and the installation hole (14) are connected in an interference fit.

8. A shoe last structure according to claim 7, characterized in that: A threaded connection hole (15) is provided on the upper end of the first last (1). A connection groove (52) is provided through the connecting block (5). A limiting plate (53) is provided in the connection groove (52), and a through hole (54) corresponding to the threaded connection hole (15) is provided on the limiting plate (53).

9. A shoe last structure according to claim 8, characterized in that: A threaded structure is provided on the groove wall of the connection groove (52).

10. A shoe last structure according to claim 9, characterized in that: An operating handle can be externally connected to the connection groove (52).

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