Foot grinder

Abstract

The foot grinder comprises a shell, a grinding wheel assembly movably connected with the shell is arranged on the shell, a driving assembly in transmission connection with the grinding wheel assembly is arranged in the shell, and a first opening and a second opening are formed in the two sides of the shell respectively; the first rotating part and the second rotating part are arranged at the two ends of the grinding wheel body, and the second rotating part is in transmission connection with the driving assembly through the second opening; the first rotating part comprises a rotating shaft sleeve, a steel needle and an adapter, the adapter is arranged on the shell, a sliding channel is formed in the adapter, one end of the steel needle is inserted into the sliding channel and can rotate relative to the sliding channel, the other end of the steel needle is fixedly connected with the rotating shaft sleeve, and the rotating shaft sleeve is movably arranged on the grinding wheel body in a telescopic mode; the first switch is movably arranged on the shell in a telescopic mode, the first switch and the steel needle are oppositely arranged, and at least part of the first switch extends into the sliding channel and does telescopic motion in the direction of the steel needle so that the steel needle can be released from the shell.

Description

Technical Field

[0001] The present application relates to the technical field of daily necessities, and in particular to a foot massager. Background Art

[0002] Foot scrubber is a common beauty tool, mainly used to remove old skin on the feet, making the foot skin smoother and more delicate. Its principle is to remove dead skin and thick skin by rubbing the skin surface with a rotating scrubber to achieve the effect of exfoliation.

[0003] The grinding head of the foot grinder is usually detachably connected to the shell, and the grinding head is rotatably connected to the shell through a rotating shaft. Since the rotating shaft rotates for a long time between the shells, it is easy to cause wear and tear on the rotating shaft and / or the shell, affecting the normal operation of the foot grinder. Utility Model Content

[0004] Based on this, it is necessary to provide a foot grinder to address the problem that the normal operation of the existing foot grinder is affected by the relative rotation between the grinding head and the shell.

[0005] A foot grinder according to the present application comprises a shell, a grinding wheel assembly movably connected to the shell is arranged on the shell, a driving assembly transmission-connected to the grinding wheel assembly is arranged in the shell, and a first opening and a second opening are respectively opened on both sides of the shell; the grinding wheel assembly comprises a grinding wheel body and a first rotating part and a second rotating part at both ends of the grinding wheel body, the second rotating part is transmission-connected to the driving assembly through the second opening; the first rotating part comprises a rotating sleeve, a steel needle and an adapter, the adapter is arranged on the shell, the adapter is provided with a sliding channel, one end of the steel needle is inserted in the sliding channel and can rotate relative to the sliding channel, and the other end is fixedly connected to the rotating sleeve, and the rotating sleeve is movably and telescopically arranged on the grinding wheel body; a first switch, the first switch is movably and telescopically arranged on the shell, the first switch is arranged opposite to the steel needle, the first switch at least partially extends into the sliding channel and performs telescopic movement in the direction of the steel needle to make the steel needle disengage from the shell.

[0006] The foot grinder disclosed in the present application has a first rotating part and a second rotating part connected to both ends of the grinding wheel body, and the second transmission part is in transmission connection with the driving assembly to rotate the grinding wheel body; the first rotating part includes a rotating sleeve, a steel needle and an adapter, the steel needle is fixedly connected to the rotating sleeve, and the rotating sleeve is movably and telescopically arranged on the grinding wheel body and forms at least a first position and a second position. When in the first position, one end of the steel needle is inserted in a sliding channel formed by the adapter, and when the rotating sleeve is telescopically moved and moves from the first position to the second position, the steel needle is detached from the sliding channel, and the grinding wheel assembly can be removed from the shell for replacement or cleaning; the grinding wheel body and the adapter are rotatably connected by the cooperation of the steel needle and the adapter, and the smooth surface of the steel needle can reduce the friction with the sliding channel and reduce the wear of the adapter, so as to improve the durability of the foot grinder; by inserting at least part of the first switch into the sliding channel and abutting against the steel needle, the first switch can be telescopically moved relative to the shell under the action of external force, so that the rotating sleeve can move relative to the grinding wheel body.

[0007] In one embodiment, the first switch includes a first button and a first spring, the first button is movably arranged on the shell, one end of the first spring is connected to the adapter, and the other end is connected to the first button, the first button is at least partially inserted in the sliding channel, and can slide relative to the sliding channel.

[0008] The foot massager in the above embodiment further defines that the first button is installed on the shell, and the first button can move relative to the shell, and the first spring is arranged between the first button and the adapter. When the first button is pressed, the first spring undergoes elastic deformation to generate elastic potential energy. The first button squeezes the steel needle and drives the rotating sleeve to move from the first position to the second position. The steel needle detaches from the adapter, and the external force on the first button is cancelled. Under the action of the first spring, the first button is reset.

[0009] In one embodiment, a first through hole is formed at one end of the grinding wheel body facing the first opening, the rotating sleeve is movably inserted into the first through hole, a second spring is arranged in the grinding wheel body, one end of the second spring is connected to the rotating sleeve, and the other end is connected to the second rotating part or the grinding wheel body.

[0010] The foot grinder in the above embodiment further defines that a second spring is arranged in the grinding wheel body, and the rotating sleeve is connected to the second spring. When the steel needle is squeezed by the first button, the rotating sleeve is driven to move from the first position to the second position. At this time, the second spring undergoes elastic deformation to generate elastic potential energy. When the force of the first button on the steel needle is cancelled, the rotating sleeve is driven by the force of the second spring to move from the second position to the first position to complete the reset. Through the above structure, the rotating sleeve can realize telescopic movement relative to the grinding wheel body.

[0011] In one embodiment, a second through hole is formed at one end of the grinding wheel body facing the second opening, and the second rotating part is movably inserted into the second through hole. One end of the second rotating part is connected to the second spring, and the other end is respectively engaged with the grinding wheel body and the driving assembly.

[0012] The foot grinder in the above embodiment further defines that the second rotating part is movably inserted into the second through hole, and the second rotating part is connected to the spring, so that the second rotating part can telescope relative to the grinding wheel body. During the transfer of the grinding wheel body to the shell, based on the fact that both the first rotating part and the second rotating part can telescope relative to the grinding wheel body, the flexible operability during the assembly process is improved.

[0013] In one embodiment, the driving assembly includes a driving motor and a gear assembly, the gear assembly includes a primary gear, a final gear and a plurality of secondary gears, the primary gear is sleeved on the rotating shaft of the driving motor and rotates synchronously with the rotating shaft of the driving motor, the final gear is connected to the primary gear after being meshed in sequence through a plurality of secondary gears, and the final gear is clamped with the second rotating part.

[0014] The foot grinding device in the above embodiment further defines that the driving assembly is connected to the second transmission part through multiple gears to reduce the rotation speed of the grinding wheel body to increase the torque of the grinding wheel body, so that the friction between the grinding wheel body and the foot pad, callus, thick skin, dead skin or thick nails is increased to achieve deep cleaning and improve the cleaning effect. In addition, the primary gear, multiple secondary gears and the final gear are distributed from bottom to top in the direction from the second rotating part to the driving motor.

[0015] In one embodiment, a groove is provided on the side of the final gear facing the first opening, and the cross-section of the groove is polygonal. The second rotating part is exposed from the grinding wheel body, and its cross-section is adapted to the cross-section of the groove. The second rotating part is inserted into the groove and clamped with the groove.

[0016] In one embodiment, the shell includes a first shell and a second shell, the first shell is formed with the first opening and the second opening, the first shell is sleeved outside the second shell, a first cavity is formed between the first shell and the second shell, a second cavity is formed in the second shell, the gear assembly is installed in the first cavity, the drive motor is installed in the second cavity, the second cavity is provided with a third opening connected to the first cavity, a first sealing ring is provided at the third opening, and the rotating shaft of the drive assembly passes through the first sealing ring and is connected to the primary gear.

[0017] The foot massager in the above embodiment further defines that the drive motor is separately installed in the second cavity formed by the second shell, the rotating shaft of the drive motor is exposed to the second cavity through the third opening and is connected to the primary gear, and a first sealing ring is sleeved on the rotating shaft to seal the gap between the third opening and the rotating shaft of the drive motor.

[0018] In some embodiments, the shell also includes a third shell, the third shell cover is arranged on the second shell, and a third cavity is formed between the third shell and the second shell. The primary gear, multiple secondary gears and the final gear are all installed in the third cavity to reduce the risk of liquid and debris entering the second cavity, thereby improving the normal operation of the electronic equipment in the second cavity.

[0019] In one embodiment, the foot massager also includes a battery module, which is installed in the second cavity. The battery module includes a rechargeable battery and a charging interface, and the rechargeable battery is electrically connected to the drive motor and the charging interface respectively. The second cavity is provided with a fourth opening, and the charging interface is inserted into the fourth opening. A second sealing ring is provided between the charging interface and the side wall of the fourth opening, and the first shell is provided with a fifth opening arranged opposite to the fourth opening.

[0020] In one embodiment, the foot massager also includes a control circuit board, which is installed in the second cavity, and is electrically connected to the charging interface, the rechargeable battery and the drive motor respectively. A control switch for controlling the drive motor is provided on the control circuit board, and a sixth opening is provided on the second cavity, and an elastic sealing sleeve is provided at the sixth opening. A second button is provided on the first shell, and the second button can slide relative to the first shell. The second button is arranged opposite to the control switch, and the second button is used to trigger the control switch. The elastic sealing sleeve is clamped between the second button and the control switch.

[0021] The foot massager in the above embodiment further defines that a control circuit board is also installed in the second installation cavity, and a control switch for controlling the start and stop of the drive motor is arranged on the control circuit board. The second shell has a sixth opening near the control switch, and an elastic sealing sleeve is arranged at the sixth opening. Based on the fact that the second button can slide relative to the first shell, the second button slides relative to the first shell and abuts against the elastic sealing sleeve, causing the elastic sealing sleeve to undergo elastic deformation and trigger the control switch to change the working state of the drive motor. Through the above structure, not only the waterproof performance of the second cavity is ensured to avoid damage to the electronic equipment in the second cavity, but also the control switch can be triggered by the cooperation between the second button and the elastic sealing sleeve.

[0022] In one embodiment, the battery module also includes an interface bracket, which is clamped on the bottom of the second cavity. The drive motor, the rechargeable battery and the interface bracket are distributed in the second cavity from top to bottom, and the charging interface is clamped on the interface bracket.

[0023] The foot massager in the above embodiment further defines that the charging interface and the interface bracket are fixed by snap-fitting, and the drive motor, rechargeable battery and interface bracket are distributed in the second cavity from top to bottom in sequence. The spatial layout is reasonable and the internal structure saves space, so that the volume of the foot massager of the present application can be as small as possible and easy to carry when going out. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A three-dimensional diagram of a foot massager in one embodiment;

[0025] Figure 2 is one of the exploded views of a foot massager in one embodiment;

[0026] Figure 3 is a cross-sectional view of a foot massager in a first direction according to an embodiment;

[0027] Figure 4 is a cross-sectional view of a foot massager in a second direction according to an embodiment;

[0028] Figure 5 This is a second exploded view of a foot massager in one embodiment;

[0029] Figure 6 A schematic diagram of the transfer connection of a grinding wheel assembly in one embodiment.

[0030] Reference numerals:

[0031] 10 housing, 11 first housing, 12 second housing, 13 third housing, 14 second button, 151 first sealing ring, 152 elastic sealing sleeve, 101 first opening, 102 second opening, 103 first cavity, 104 second cavity, 105 third opening, 107 fourth opening, 108 fifth opening, 109 sixth opening;

[0032] 20 grinding wheel assembly, 21 grinding wheel body, 22 first rotating part, 23 second rotating part, 211 second spring, 221 rotating sleeve, 222 steel needle, 223 adapter, 203 sliding channel;

[0033] 30 driving assembly, 31 driving motor, 32 gear assembly, 321 primary gear, 322 secondary gear, 323 final gear, 301 groove;

[0034] 40 a first switch, 41 a first button, 42 a first spring;

[0035] 50 battery module, 51 rechargeable battery, 52 charging interface, 53 interface bracket, 54 second sealing ring; 60 control circuit board, 61 control switch. DETAILED DESCRIPTION

[0036] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0037] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so as to describe the embodiments of the present application described herein.

[0038] like Figures 1 to 6 As shown, this embodiment provides a foot grinding device, which includes a housing 10, a grinding wheel assembly 20 movably connected to the housing 10 is disposed on the housing 10, and a driving assembly 30 drivingly connected to the grinding wheel assembly 20 is disposed in the housing 10;

[0039] The housing 10 has a first opening 101 and a second opening 102 on both sides thereof.

[0040] The grinding wheel assembly 20 includes a grinding wheel body 21 and a first rotating portion 22 and a second rotating portion 23 at two ends of the grinding wheel body 21. The second rotating portion 23 is transmission-connected to the driving assembly 30 through the second opening 102.

[0041] The first rotating part 22 includes a rotating sleeve 221, a steel needle 222 and an adapter 223. The adapter 223 is arranged on the housing 10. The adapter 223 has a sliding channel 203. One end of the steel needle 222 is inserted into the sliding channel 203 and can rotate relative to the sliding channel 203. The other end is fixedly connected to the rotating sleeve 221. The rotating sleeve 221 is movably and telescopically arranged on the grinding wheel body 21.

[0042] The first switch 40 is movably retractable on the shell 10. The first switch 40 is arranged opposite to the steel needle 222. The first switch 40 at least partially extends into the sliding channel 203 and performs a retractable movement toward the direction of the steel needle 222 to disengage the steel needle 222 from the shell 10.

[0043] Among them, the surface of the grinding wheel body 21 is covered with a frosted layer, and the grinding wheel body 21 can rotate relative to the shell 10. The frosted layer on the grinding wheel body 21 can safely grind the parts that need to be trimmed, so that it can rotate, grind and polish, so as to achieve the purpose of trimming foot pads, calluses, thick skin, dead skin and thick nails.

[0044] The second rotating part 23 can be an integrally formed structure with the grinding wheel body 21. When the second rotating part 23 is driven by the driving assembly 30, it can drive the grinding wheel body 21 to rotate synchronously. It should be noted that the second rotating part 23 can also be a separate structure from the grinding wheel body 21. The second rotating part 23 can be snap-connected with the grinding wheel body 21, so that the grinding wheel body 21 rotates synchronously with the second rotating part 23.

[0045] The rotating sleeve 221 can telescope relative to the grinding wheel body 21 and form at least a first position and a second position. Specifically, when the rotating sleeve 221 is in the first position, one end of the steel needle 222 is inserted into the sliding channel 203 formed by the adapter 223. At this time, the grinding wheel assembly 20 cannot be removed from the shell 10. When the rotating sleeve 221 telescopes and moves from the first position to the second position, the steel needle 222 moves with the rotating sleeve 221 and disengages from the sliding channel 203. At this time, the grinding wheel assembly 20 can be removed from the shell 10 for replacement or cleaning.

[0046] The steel needle 222 can be connected to the rotating sleeve 221 by direct insertion. Specifically, a slot is formed at one end of the rotating sleeve 221 away from the second rotating part 23, and the shape of the slot matches the shape of the steel needle 222, so that the steel needle 222 can be connected to the rotating sleeve 221 by direct insertion.

[0047] The adapter 223 is a shell 10 structure with openings at both ends, and the adapter 223 is provided with a sliding channel 203. The end of the steel needle 222 away from the rotating sleeve 221 can be inserted into the sliding channel 203 and can rotate in the sliding channel 203. Based on the cooperation between the steel needle 222 and the adapter 223, the rotation connection between the grinding wheel body 21 and the adapter 223 is realized. The smooth surface of the steel needle 222 can reduce the friction with the sliding channel 203 and reduce the wear of the adapter 223 to improve the durability of the foot grinding device; in addition, the adapter 223 can be detachably connected to the shell, and the adapter 223 can be replaced separately to avoid overall replacement, thereby reducing resource waste. It should be noted that in other embodiments, the adapter 223 and the shell 10 can be an integrally formed structure.

[0048] At least a portion of the first switch 40 is inserted into the sliding channel 203 and abuts against the steel needle 222. Under the action of external force, the first switch 40 can be extended and retracted relative to the shell 10. After being squeezed by the first switch 40, the steel needle 222 can trigger the rotating sleeve 221 to move from the first position to the second position, thereby causing the steel needle 222 to detach from the adapter 223.

[0049] In the above-mentioned foot grinding apparatus, the two ends of the grinding wheel body 21 are respectively connected with the first rotating part 22 and the second rotating part 23, and the second transmission part is connected to the driving assembly 30 to rotate the grinding wheel body 21; the first rotating part 22 includes a rotating shaft sleeve 221, a steel needle 222 and an adapter 223, the steel needle 222 is fixedly connected to the rotating shaft sleeve 221, and the rotating shaft sleeve 221 is movably and telescopically arranged on the grinding wheel body 21 and forms at least a first position and a second position. When in the first position, one end of the steel needle 222 is inserted into the sliding channel 203 formed by the adapter 223, and when the rotating shaft sleeve 221 is telescopically moved and moved from the first position to the second position, the steel needle 222 The grinding wheel assembly 20 is detached from the sliding channel 203. At this time, the grinding wheel assembly 20 can be removed from the shell 10 for replacement or cleaning; the rotational connection between the grinding wheel body 21 and the adapter 223 is realized by adopting the cooperation of the steel needle 222 and the adapter 223. The smooth surface of the steel needle 222 can reduce the friction with the sliding channel 203 and reduce the wear of the adapter 223, so as to improve the durability of the foot grinder; by at least partially inserting the first switch 40 into the sliding channel 203 and abutting against the steel needle 222, the first switch 40 can be extended and retracted relative to the shell 10 under the action of external force, so that the rotating sleeve 221 can move relative to the grinding wheel body 21.

[0050] like Figures 4 to 6As shown, in addition to the features of the above-mentioned embodiments, this embodiment further defines: the first switch 40 includes a first button 41 and a first spring 42, the first button 41 is movably arranged on the housing 10, one end of the first spring 42 is connected to the adapter 223, and the other end is connected to the first button 41, the first button 41 is at least partially inserted in the sliding channel 203, and can slide relative to the sliding channel 203.

[0051] Among them, the first button 41 is installed on the shell 10, and the first button 41 can move relative to the shell 10. The first spring 42 is arranged between the first button 41 and the adapter 223. When the first button 41 is pressed, the first spring 42 undergoes elastic deformation to generate elastic potential energy. The first button 41 squeezes the steel needle 222 and drives the rotating sleeve 221 to move from the first position to the second position. The steel needle 222 is detached from the adapter 223, and the external force on the first button 41 is cancelled. Under the action of the first spring 42, the first button 41 is reset.

[0052] like Figures 4 to 5 As shown, in addition to the features of the above-mentioned embodiments, this embodiment is further defined as follows: a first through hole is opened at one end of the grinding wheel body 21 facing the first opening 101, a rotating sleeve 221 is movably inserted in the first through hole, a second spring 211 is arranged in the grinding wheel body 21, one end of the second spring 211 is connected to the rotating sleeve 221, and the other end is connected to the second rotating part 23 or the grinding wheel body 21.

[0053] Among them, a second spring 211 is arranged in the grinding wheel body 21, and the rotating sleeve 221 is connected to the second spring 211. When the steel needle 222 is squeezed by the first button 41, the rotating sleeve 221 is driven to move from the first position to the second position. At this time, the second spring 211 undergoes elastic deformation to generate elastic potential energy. When the force of the first button 41 on the steel needle 222 is cancelled, the rotating sleeve 221 is driven by the force of the second spring 211 to move from the second position to the first position to complete the reset. Through the above structure, the rotating sleeve 221 can realize telescopic movement relative to the grinding wheel body 21.

[0054] like Figures 4 to 5 As shown, in addition to the features of the above-mentioned embodiment, the present embodiment is further defined as follows: a second through hole is opened at one end of the grinding wheel body 21 facing the second opening 102, a second rotating part 23 is movably inserted in the second through hole, one end of the second rotating part 23 is connected to the second spring 211, and the other end is respectively engaged with the grinding wheel body 21 and the driving assembly 30.

[0055] Among them, the second rotating part 23 is movably inserted in the second through hole, and the second rotating part 23 is connected to the spring, so that the second rotating part 23 can telescope relative to the grinding wheel body 21. During the transfer of the grinding wheel body 21 to the shell 10, based on the first rotating part 22 and the second rotating part 23, both the first rotating part 22 and the second rotating part 23 can telescope relative to the grinding wheel body 21, thereby improving the flexible operability during the assembly process.

[0056] like Figures 4 to 5 As shown, in addition to the features of the above-mentioned embodiments, this embodiment further defines: the driving assembly 30 includes a driving motor 31 and a gear assembly 32, the gear assembly 32 includes a primary gear 321, a final gear 323 and a plurality of secondary gears 322, the primary gear 321 is sleeved on the rotating shaft of the driving motor 31, and rotates synchronously with the rotating shaft of the driving motor 31, the final gear 323 is sequentially meshed with the primary gear 321, and the final gear 323 is connected to the second rotating part 23 by a locking connection.

[0057] Among them, the driving assembly 30 is connected to the second transmission part through multiple gears to reduce the rotation speed of the grinding wheel body 21 to increase the torque of the grinding wheel body 21, so that the friction between the grinding wheel body 21 and the foot pads, calluses, thick skin, dead skin or thick nails is increased to achieve deep cleaning and improve the cleaning effect. In addition, the primary gear 321, multiple secondary gears 322 and the final gear 323 are distributed from the second rotating part 23 to the direction of the driving motor 31 from bottom to top. It should be noted that the number of secondary gears 322 can be one, two, three or more.

[0058] like Figure 2 , Figure 5 and Figure 6 As shown, in addition to the features of the above-mentioned embodiments, this embodiment further defines: a groove 301 is provided on the side of the final gear 323 facing the first opening 101, the cross-section of the groove 301 is polygonal, the cross-section of the second rotating portion 23 exposed outside the grinding wheel body 21 is adapted to the cross-section of the groove 301, and the second rotating portion 23 is inserted into the groove 301 and is clamped with the groove 301.

[0059] Among them, the second rotating part 23 is directly inserted into the groove 301 formed on the final gear 323 to achieve locking. Specifically, the cross-section of the groove 301 is a quadrilateral, and the part of the second rotating part 23 exposed from the grinding wheel body 21 is a rectangular parallelepiped. The second rotating part 23 is inserted in the groove 301, so that the second rotating part 23 can rotate with the rotation of the final gear 323; it should be noted that in other embodiments, the cross-section of the groove 301 can be a polygon such as a triangle or a pentagon. Based on the above structure, the second rotating part 23 and the final gear 323 are locked, the structure is simple and reliable, and it is not easy to fail.

[0060] like Figures 3 to 5 As shown, in addition to the features of the above embodiments, the present embodiment further defines that: the shell 10 includes a first shell 11 and a second shell 12, the first shell 11 is formed with a first opening 101 and a second opening 102, the first shell 11 is sleeved outside the second shell 12, a first cavity 103 is formed between the first shell 11 and the second shell 12, a second cavity 104 is formed in the second shell 12, the gear assembly 32 is installed in the first cavity 103, the drive motor 31 is installed in the second cavity 104, the second cavity 104 is provided with a third opening 105 connected with the first cavity 103, a first sealing ring 151 is provided at the third opening 105, and the rotating shaft of the drive assembly 30 passes through the first sealing ring 151 and is connected to the primary gear 321.

[0061] Among them, the driving motor 31 is separately installed in the second cavity 104 formed by the second shell 12, and the rotating shaft of the driving motor 31 is exposed to the second cavity 104 through the third opening 105 and connected to the primary gear 321. A first sealing ring 151 is sleeved on the rotating shaft to seal the gap between the third opening 105 and the rotating shaft of the driving motor 31.

[0062] As Figure 4 and Figure 5 As shown, in addition to the features of the above embodiments, this embodiment further defines: the shell 10 also includes a third shell 13, the third shell 13 is covered on the second shell 12, and a third cavity is formed between the third shell 13 and the second shell 12. The primary gear 321, multiple secondary gears 322 and the final gear 323 are all installed in the third cavity to reduce the risk of liquid and debris entering the second cavity 104, thereby improving the normal operation of the electronic equipment in the second cavity 104.

[0063] like Figures 3 to 5 As shown, in addition to the features of the above embodiments, this embodiment further defines: the foot massager also includes a battery module 50, the battery module 50 is installed in the second cavity 104, the battery module 50 includes a rechargeable battery 51 and a charging interface 52, the rechargeable battery 51 is electrically connected to the drive motor 31 and the charging interface 52 respectively, the second cavity 104 is provided with a fourth opening 107, the charging interface 52 is inserted at the fourth opening 107, a second sealing ring 54 is arranged between the charging interface 52 and the side wall of the fourth opening 107, and the first shell 11 is provided with a fifth opening 108 arranged opposite to the fourth opening 107.

[0064] Among them, a rechargeable battery 51 and a charging interface 52 are also installed in the second installation cavity, wherein the charging interface 52 can be connected to an external power supply through the fourth opening 107 and the fifth opening 108 in sequence to charge the rechargeable battery 51; at the same time, a second sealing ring 54 is arranged between the charging interface 52 and the side wall of the fourth opening 107 to seal the gap between the charging interface 52 and the fourth opening 107, thereby improving the sealing performance of the second cavity 104.

[0065] like Figures 3 to 5 As shown, in addition to the features of the above embodiments, the present embodiment further defines that: the foot massager also includes a control circuit board 60, which is installed in the second cavity 104, and the control circuit board 60 is electrically connected to the charging interface 52, the rechargeable battery 51 and the drive motor 31 respectively, and a control switch 61 for controlling the drive motor 31 is provided on the control circuit board 60, a sixth opening 109 is opened on the second cavity 104, and an elastic sealing sleeve 152 is provided at the sixth opening 109, a second button 14 is provided on the first shell 11, the second button 14 can slide relative to the first shell 11, the second button 14 and the control switch 61 are arranged opposite to each other, the second button 14 is used to trigger the control switch 61, and the elastic sealing sleeve 152 is clamped between the second button 14 and the control switch 61.

[0066] Among them, a control circuit board 60 is also installed in the second installation cavity, and a control switch 61 for controlling the start and stop of the drive motor 31 is arranged on the control circuit board 60. The second shell 12 opens a sixth opening 109 near the control switch 61, and an elastic sealing sleeve 152 is arranged at the sixth opening 109. Based on the fact that the second button 14 can slide relative to the first shell 11, the second button 14 slides relative to the first shell 11 and abuts against the elastic sealing sleeve 152, causing the elastic sealing sleeve 152 to undergo elastic deformation and trigger the control switch 61 to change the working state of the drive motor 31. Through the above structure, not only the waterproof performance of the second cavity 104 is ensured to avoid damage to the electronic equipment in the second cavity 104, but also it is ensured that the control switch 61 can be triggered by the cooperation between the second button 14 and the elastic sealing sleeve 152.

[0067] like Figures 3 to 5 As shown, in addition to the features of the above embodiments, this embodiment further defines: the battery module 50 also includes an interface bracket 53, the interface bracket 53 is clamped on the bottom of the second cavity 104, the drive motor 31, the rechargeable battery 51 and the interface bracket 53 are distributed in the second cavity 104 from top to bottom, and the charging interface 52 is clamped on the interface bracket 53.

[0068] Among them, the charging interface 52 and the interface bracket 53 are fixed by snapping, and the driving motor 31, the rechargeable battery 51 and the interface bracket 53 are distributed in the second cavity 104 from top to bottom. The spatial layout is reasonable and the internal structure saves space, so that the volume of the foot massager of the present application can be as small as possible, which is convenient for carrying outside.

[0069] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0070] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present utility model patent shall be subject to the attached claims.

Claims

1. A foot grinding device, comprising a housing (10), a grinding wheel assembly (20) movably connected to the housing (10) being arranged on the housing (10), a driving assembly (30) drivingly connected to the grinding wheel assembly (20) being arranged in the housing (10), characterized in that: The shell (10) is provided with a first opening (101) and a second opening (102) on both sides respectively; The grinding wheel assembly (20) comprises a grinding wheel body (21) and a first rotating part (22) and a second rotating part (23) at two ends of the grinding wheel body (21); the second rotating part (23) is transmission-connected to the driving assembly (30) through the second opening (102); The first rotating part (22) comprises a rotating sleeve (221), a steel needle (222) and an adapter (223); the adapter (223) is arranged on the housing (10); the adapter (223) is provided with a sliding channel (203); one end of the steel needle (222) is inserted into the sliding channel (203) and can rotate relative to the sliding channel (203); the other end is fixedly connected to the rotating sleeve (221); the rotating sleeve (221) is movably and telescopically arranged on the grinding wheel body (21); A first switch (40), wherein the first switch (40) is movably retractable on the housing (10), the first switch (40) is arranged opposite to the steel needle (222), and the first switch (40) at least partially extends into the sliding channel (203) and performs a retractable movement in the direction of the steel needle (222) so as to disengage the steel needle (222) from the housing (10).

2. The foot massager according to claim 1, characterized in that: The first switch (40) comprises a first button (41) and a first spring (42); the first button (41) is movably arranged on the housing (10); one end of the first spring (42) is connected to the adapter (223), and the other end is connected to the first button (41); the first button (41) is at least partially inserted into the sliding channel (203) and can slide relative to the sliding channel (203).

3. The foot massager according to claim 1, characterized in that: A first through hole is formed at one end of the grinding wheel body (21) facing the first opening (101), and the rotating sleeve (221) is movably inserted into the first through hole. A second spring (211) is arranged inside the grinding wheel body (21), and one end of the second spring (211) is connected to the rotating sleeve (221), and the other end is connected to the second rotating part (23) or the grinding wheel body (21).

4. The foot massager according to claim 3, characterized in that: A second through hole is formed at one end of the grinding wheel body (21) facing the second opening (102), and the second rotating part (23) is movably inserted into the second through hole. One end of the second rotating part (23) is connected to the second spring (211), and the other end is respectively engaged with the grinding wheel body (21) and the driving assembly (30).

5. The foot massager according to claim 1, characterized in that: The driving assembly (30) comprises a driving motor (31) and a gear assembly (32); the gear assembly (32) comprises a primary gear (321), a final gear (323) and a plurality of secondary gears (322); the primary gear (321) is sleeved on the rotating shaft of the driving motor (31) and rotates synchronously with the rotating shaft of the driving motor (31); the final gear (323) is transmission-connected with the primary gear (321) after being meshed in sequence with a plurality of secondary gears (322); and the final gear (323) is clamped with the second rotating part (23).

6. The foot massager according to claim 5, characterized in that: A groove (301) is provided on one side of the final gear (323) facing the first opening (101); the cross section of the groove (301) is polygonal; the cross section of the portion of the second rotating portion (23) exposed outside the grinding wheel body (21) is matched with the cross section of the groove (301); the second rotating portion (23) is inserted into the groove (301) and is engaged with the groove (301).

7. The foot massager according to claim 5, characterized in that: The housing (10) comprises a first housing (11) and a second housing (12); the first housing (11) is formed with the first opening (101) and the second opening (102); the first housing (11) is sleeved outside the second housing (12); a first cavity (103) is formed between the first housing (11) and the second housing (12); a second cavity (104) is formed in the second housing (12); the gear assembly (32) is installed in the first cavity (103); the drive motor (31) is installed in the second cavity (104); a third opening (105) communicating with the first cavity (103) is opened on the second cavity (104); a first sealing ring (151) is arranged at the third opening (105); a rotating shaft of the drive assembly (30) passes through the first sealing ring (151) and is connected to the primary gear (321).

8. The foot massager according to claim 7, characterized in that: The invention also includes a battery module (50), wherein the battery module (50) is installed in the second cavity (104), the battery module (50) includes a rechargeable battery (51) and a charging interface (52), the rechargeable battery (51) is electrically connected to the drive motor (31) and the charging interface (52), respectively, the second cavity (104) is provided with a fourth opening (107), the charging interface (52) is inserted into the fourth opening (107), a second sealing ring (54) is provided between the charging interface (52) and the side wall of the fourth opening (107), and the first shell (11) is provided with a fifth opening (108) arranged opposite to the fourth opening (107).

9. The foot massager according to claim 8, characterized in that: The invention also comprises a control circuit board (60), wherein the control circuit board (60) is installed in the second cavity (104), and the control circuit board (60) is electrically connected to the charging interface (52), the rechargeable battery (51) and the drive motor (31) respectively; a control switch (61) for controlling the drive motor (31) is arranged on the control circuit board (60); a sixth opening (109) is opened on the second cavity (104), and an elastic sealing sleeve (152) is arranged at the sixth opening (109); a second button (14) is arranged on the first shell (11), and the second button (14) can slide relative to the first shell (11); the second button (14) and the control switch (61) are arranged opposite to each other; the second button (14) is used to trigger the control switch (61); and the elastic sealing sleeve (152) is sandwiched between the second button (14) and the control switch (61).

10. The foot massager according to claim 8, characterized in that: The battery module (50) further comprises an interface bracket (53), wherein the interface bracket (53) is snap-fitted to the bottom of the second cavity (104), the drive motor (31), the rechargeable battery (51) and the interface bracket (53) are sequentially distributed from top to bottom in the second cavity (104), and the charging interface (52) is snap-fitted to the interface bracket (53).

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