Grinding head assembly of foot grinder

Abstract

The utility model belongs to the technical field of foot grinders, and discloses a grinding head assembly of a foot grinder, which comprises an elastic piece, a grinding head, a grinding head and a grinding head, and is characterized in that the elastic piece comprises a W-shaped elastic piece body and limiting columns positioned at two ends of the elastic piece body; the grinding head unit comprises a grinding head positioning cylinder used for positioning and installing an elastic piece, a grinding head positioning piece is integrally formed at one end of the grinding head positioning cylinder, the other end of the grinding head positioning cylinder is connected with an end cover in a matched mode, and the grinding head positioning piece and the end cover are both provided with limiting holes matched with the limiting columns. The grinding head unit has the advantages that due to the fact that the grinding head positioning piece and the grinding head positioning barrel are integrally formed, one assembling step is omitted, the installation efficiency is improved, due to the fact that the grinding head barrel is detachably connected and installed on the periphery of the grinding head positioning barrel, when the foot grinding effect of the grinding head unit becomes poor, the grinding head barrel is installed on the periphery of the grinding head positioning barrel in a detachable mode, and the grinding head positioning barrel is installed on the periphery of the grinding head positioning barrel. And only the grinding head cylinder needs to be replaced, so that the use cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of foot grinders, and particularly relates to a grinding head assembly of a foot grinder. Background Art

[0002] Foot grinders are usually used to remove dead skin or calluses on the feet, restore the smoothness and cleanliness of the feet, and have a foot beauty effect. Digital foot grinders are small in size, easy to carry, and convenient for travel. The grinding head of the foot grinder is easily worn when grinding dead skin or calluses, and the effect is poor after long-term use and needs to be replaced. In addition, it takes a certain amount of time to assemble the grinding head unit.

[0003] After searching, a Chinese utility model patent (authorization announcement number: CN219782700U) provides a grinding head for a foot grinder, including a grinding cylinder, an end cover and a spring shaft; the interior of the grinding cylinder is a hollow structure, and end cover grooves corresponding to the end covers are respectively provided at the two ends of the interior, and a number of blocks for surrounding the spring shaft are provided in the middle of the interior; the interior of the grinding cylinder is also provided with two protrusions extending to the end cover grooves, and a number of protrusions are arranged at intervals on the protrusions; two inner grooves matching the protrusions are provided on the outer edge of the end cover, and a square hole for passing the spring shaft is provided on the end cover; the spring shaft includes square shafts at both ends and a spring body with a serpentine bend in the middle; the square shaft extends to the outside of the end cover through the square hole.

[0004] The grinding head in the prior art is composed of two end covers, a grinding cylinder and a spring shaft. When installing the grinding head in the prior art, one end of the spring shaft needs to be inserted into the square hole of one end cover first, and then the other end of the spring shaft is inserted into the grinding cylinder. The spring shaft passes through the gap surrounded by the stopper, the protrusion and the protrusion block, and then the protrusion is inserted into the inner groove on the end cover. After the end cover is pressed, the other end cover is also installed and the end cover is pressed to complete the assembly of the grinding head.

[0005] Therefore, it can be seen from the prior art that such an installation method requires that the end covers at both ends be installed to both ends of the grinding cylinder, which has many installation steps and low installation efficiency, so this shortcoming needs to be improved urgently. Utility Model Content

[0006] The purpose of the utility model is to solve the above problems. The utility model provides a grinding head assembly of a foot grinder, which has the advantage of higher assembly efficiency during assembly.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: including:

[0008] An elastic member, the elastic member comprising a W-shaped elastic member body and limiting posts located at both ends of the elastic member body;

[0009] A grinding head unit, the grinding head unit includes a grinding head positioning cylinder for positioning and installing an elastic member, a grinding head positioning piece is integrally formed at one end of the grinding head positioning cylinder, and an end cover is cooperatively connected to the other end of the grinding head positioning cylinder, the grinding head positioning piece and the end cover both have limiting holes that cooperate with the limiting column, and a grinding head cylinder is provided on the outer periphery of the grinding head positioning cylinder.

[0010] Preferably, the grinding head cylinder is detachably mounted on the outer periphery of the grinding head positioning cylinder, the grinding head cylinder has a through cavity, a limiting strip is provided on the inner wall of the through cavity, and the grinding head positioning cylinder is provided with a limiting groove cooperating with the limiting strip.

[0011] Preferably, the end cover is provided with a hook, and the grinding head positioning cylinder is provided with a block that is snap-fitted with the hook.

[0012] Preferably, a positioning block is provided between the limiting column and the elastic member body, the grinding head positioning cylinder has an installation cavity for limiting the installation of the elastic member, and the installation cavity has a protrusion for cooperating with the positioning block for installation.

[0013] Preferably, the cross-sectional shapes of the limiting column and the limiting hole are both polygonal.

[0014] Preferably, the grinding head positioning cylinder is in a flat cylinder shape.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] The utility model provides a grinding head assembly for a foot grinder. Since the grinding head positioning piece and the grinding head positioning cylinder are integrally formed, one assembly step is reduced, thereby improving installation efficiency. Since the grinding head cylinder is installed on the outer periphery of the grinding head positioning cylinder through a detachable connection, when the foot grinding effect of the grinding head unit deteriorates, it is only necessary to replace the grinding head cylinder, thereby reducing the use cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional structural schematic diagram of a foot grinder of the utility model;

[0018] Figure 2 It is a three-dimensional structural schematic diagram of a grinding head assembly of a foot grinding device according to the utility model;

[0019] Figure 3 It is a schematic cross-sectional structure diagram of a grinding head assembly of a foot grinding device according to the utility model;

[0020] Figure 4 It is an exploded three-dimensional structural schematic diagram of a grinding head assembly of a foot grinding device according to the utility model;

[0021] Figure 5 It is a side structural schematic diagram of the grinding head positioning cylinder of the utility model.

[0022] Description of the drawings: 1. Handle; 2. Grinding head unit; 20. Limiting hole; 21. Grinding head cylinder; 211. Through cavity; 212. Limiting strip; 22. Grinding head positioning piece; 221. Mounting cavity; 222. Raised portion; 23. End cover; 231. Hook; 24. Grinding head positioning cylinder; 241. Limiting groove; 242. Block; 3. Elastic piece; 31. Limiting column; 32. Elastic piece body; 33. Positioning block. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figure 1-Figure 5 As shown, a grinding head assembly of a foot grinding device includes an elastic member 3, wherein the elastic member 3 includes a W-shaped elastic member body 32 and limiting columns 31 located at both ends of the elastic member body 32; a grinding head unit 2, wherein the grinding head unit 2 includes a grinding head positioning cylinder 24 for positioning and installing the elastic member 3, the grinding head positioning cylinder 24 is in a flat cylinder shape, and the grinding head positioning cylinder 24 is easier to form and manufacture, one end of the grinding head positioning cylinder 24 is integrally formed with a grinding head positioning member 22, and the other end of the grinding head positioning cylinder 24 is matched and connected with an end cover 23, the grinding head positioning member 22 and the end cover 23 are both provided with limiting holes 20 matched with the limiting columns 31, and a grinding head cylinder 21 is provided on the outer periphery of the grinding head positioning cylinder 24.

[0025] The grinding head cylinder 21 can be detachably installed on the outer periphery of the grinding head positioning cylinder 24. Therefore, when the grinding head cylinder 21 has been used for too long, the grinding effect of the grinding head cylinder 21 becomes worse. Therefore, the grinding effect can be improved by directly replacing the grinding head cylinder 21, and the cost is lower than replacing the grinding head unit 2. The grinding head cylinder 21 has a through cavity 211, and a limiting strip 212 is provided on the inner wall of the through cavity 211. The grinding head positioning cylinder 24 is provided with a limiting groove 241 that cooperates with the limiting strip 212. In the present application, there are two limiting strips 212. In addition to two, there can also be any number that is convenient for manufacturing and production, and they are symmetrically arranged on the inner wall of the through cavity 211. The limiting strips 212 are provided on the inner wall of the through cavity 211. 212 extends along the axial direction of the grinding head cylinder 21, the end of the limiting groove 241 away from the grinding head positioning part 22 is in an open state, and the end of the limiting groove 241 close to the grinding head positioning part 22 is in a closed state. Therefore, the limiting strip 212 can enter the limiting groove 241 through the open position of the limiting groove 241, thereby realizing the matching connection between the grinding head cylinder 21 and the grinding head positioning cylinder 24, and one end of the limiting groove 241 is in a closed state to play a limiting role. When the limiting strip 212 is installed in cooperation with the limiting groove 241, there will be no relative rotation between the grinding head cylinder 21 and the grinding head positioning cylinder 24, and the number of the limiting grooves 241 and the limiting strip 212 are the same.

[0026] The outer periphery of the grinding head cylinder 21 is formed into a sand surface for grinding the feet by sandblasting, so the grinding head cylinder 21 can better grind the feet and remove dead skin.

[0027] A hook 231 is provided on the end cover 23, and a block 242 which is snap-fitted with the hook 231 is provided on the grinding head positioning cylinder 24. In the present application, there are two hooks 231, which are symmetrically arranged on the end cover 23. In addition, the number and position of the blocks 242 on the grinding head positioning cylinder 24 correspond to the hooks 231. Through the snap-fitting between the two hooks 231 and the two blocks 242, the installation between the end cover 23 and the grinding head positioning cylinder 24 is made more secure.

[0028] A positioning block 33 is provided between the limiting column 31 and the elastic member body 32. A mounting cavity 221 for limiting the mounting of the elastic member 3 is provided in the grinding head positioning cylinder 24. The mounting cavity 221 has a similar cross-sectional shape to the grinding head positioning cylinder 24. The elastic member 3 and the mounting cavity 221 are installed and connected by a drawer-like pulling method. A protrusion 222 for cooperating with the positioning block 33 is provided in the mounting cavity 221. The protrusion 222 and the inner wall of the mounting cavity 221 prevent the elastic member 3 from being offset or jittered in the mounting cavity 221, so that no noise is emitted when the grinding head unit 2 rotates.

[0029] The longitudinal cross-sections of the limiting column 31 and the limiting hole 20 are both polygonal. The limiting column 31 and the limiting hole 20 in the present application are square in cross-section. In addition to the square, they can also be triangles, pentagons, or any other shapes that can prevent relative rotation between the limiting column 31 and the limiting hole 20.

[0030] Handles 1 are provided at both ends of the grinding head unit 2, and the grinding head unit 2 is driven and installed on the handles 1.

[0031] During assembly: the elastic member 3 is installed into the installation cavity 221 by a drawer-type connection, and the elastic member 3 is placed in the installation cavity 221 until the limit column 31 is matched and connected with the limit hole 20 of the grinding head positioning member 22, and then the limit strip 212 in the grinding head cylinder 21 is aligned and installed with the limit groove 241 on the grinding head positioning cylinder 24, so that the grinding head cylinder 21 is installed to the outer periphery of the grinding head positioning cylinder 24, and then the end cover 23 is installed to the other end of the grinding head positioning cylinder 24, so that the hook 231 on the end cover 23 is snap-fitted with the block 242 on the grinding head positioning cylinder 24, thereby realizing the installation of the grinding head unit 2. Because the grinding head positioning member 22 and the grinding head positioning cylinder 24 are integrally formed, one assembly step is reduced, thereby improving the installation efficiency, and the grinding head cylinder 21 is installed on the outer periphery of the grinding head positioning cylinder 24 through a detachable connection, so that when the grinding effect of the grinding head unit 2 deteriorates, only the grinding head cylinder 21 needs to be replaced, thereby reducing the cost of use.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A grinding head assembly for a foot grinder, characterized in that: include: An elastic member (3), the elastic member (3) comprising a W-shaped elastic member body (32) and limiting columns (31) located at two ends of the elastic member body (32); A grinding head unit (2), the grinding head unit (2) comprising a grinding head positioning cylinder (24) for positioning and installing an elastic member (3), one end of the grinding head positioning cylinder (24) being integrally formed with a grinding head positioning member (22), the other end of the grinding head positioning cylinder (24) being cooperatively connected with an end cover (23), the grinding head positioning member (22) and the end cover (23) both having a limiting hole (20) cooperating with the limiting column (31), and a grinding head (21) being arranged on the outer periphery of the grinding head positioning cylinder (24).

2. The grinding head assembly of the foot grinder according to claim 1, characterized in that: The grinding head (21) is detachably mounted on the outer periphery of the grinding head positioning cylinder (24); the grinding head (21) has a through cavity (211); a limiting strip (212) is provided on the inner wall of the through cavity (211); and a limiting groove (241) cooperating with the limiting strip (212) is provided on the grinding head positioning cylinder (24).

3. The grinding head assembly of the foot grinder according to claim 1, characterized in that: The end cover (23) is provided with a hook (231), and the grinding head positioning cylinder (24) is provided with a clamping block (242) that is buckled and matched with the hook (231).

4. The grinding head assembly of a foot grinder according to claim 1, characterized in that: A positioning block (33) is provided between the limiting column (31) and the elastic member body (32); the grinding head positioning cylinder (24) has a mounting cavity (221) for limiting and mounting the elastic member (3); the mounting cavity (221) has a protrusion (222) for cooperating with the positioning block (33) for mounting.

5. The grinding head assembly of a foot grinder according to claim 1, characterized in that: The cross-sectional shapes of the limiting column (31) and the limiting hole (20) are both polygonal.

6. The grinding head assembly of a foot grinder according to claim 1, characterized in that: The grinding head positioning cylinder (24) is in the shape of a flat cylinder.

Images