A manicure phototherapy instrument with parallel hand-foot phototherapy

Abstract

The utility model relates to a kind of manicure phototherapy instrument of hand and foot parallel phototherapy, it includes shell, bottom plate, electric control assembly, LED lamp panel and light guide plate, light therapy cabin is opened in shell, light therapy cabin is through with the front and bottom of shell, bottom plate is located at the bottom of shell, the shape of light therapy cabin is cuboid, the length of light therapy cabin is 22~30cm, width is 15~21cm, height is 5~8cm, each inner wall of light therapy cabin is correspondingly opened with installation cavity, LED lamp panel and light guide plate are sequentially detachably located in its corresponding installation cavity, installation cavity is through with the inside of shell, LED lamp panel is arranged with LED lamp pearl, light guide plate is opened with light transmission hole, light transmission hole is opposite to LED lamp pearl, electric control assembly is located in the inside of shell, and is electrically connected with LED lamp panel. The technical scheme can be used for the phototherapy solidification of hand and foot nail, and allow the phototherapy solidification of both hands or both feet to be carried out synchronously, and then application scene is widely, and phototherapy solidification efficiency is higher.

Description

Technical Field

[0001] This invention relates to a nail art device, and more specifically to a nail art phototherapy device that allows for simultaneous phototherapy of the hands and feet. Background Technology

[0002] A UV curing nail instrument is a professional nail tool primarily used to cure UV gel. It is widely used in nail salons, home DIY, and personal care settings. Its core function is to trigger the photoinitiator in the gel to undergo a polymerization reaction through ultraviolet light or LED lights of a specific wavelength, causing the gel layer to harden and solidify quickly, thus achieving a long-lasting, glossy nail surface effect. Compared to natural air drying, it can shorten the curing time from minutes to seconds, while also enhancing the nail surface's abrasion resistance and the duration of its shine.

[0003] Traditional nail gel lamps, due to structural limitations, often cannot effectively cure the gel on toenails, limiting their application scenarios. Here, we take a comfortable nail gel lamp disclosed in Chinese Patent No. CN211910809U as an example. This nail gel lamp mainly includes an upper body and a lower body. The lower body consists of a front block and a rear block. An access window is provided on the front side of the outer cover of the upper body. A lower baffle is provided at the lower end of the outer cover of the upper body, and a notch is provided on the lower baffle. Several baking lamps are provided on the inner wall of the outer cover of the main body. The upper side of the front block of the lower body is an inclined surface, and a groove is provided in the middle of the upper side of the front block. Several small protrusions are provided in the groove, and one end of the groove is connected to… The reach window is positioned opposite the arm, and the groove shape matches the arm. This means that the arm can only be placed inside the groove for photocuring. Due to the structure of the lower main body, it is impossible to perform photocuring on toenails. Another limiting factor is that the groove on the front block corresponds to the reach window, and the reach window only considers the size of the hand, which does not allow the foot to pass through. Due to poor spatial adaptability, it cannot meet the needs of photocuring toenails. In addition, because there is only one groove and reach window, photocuring of both hands cannot be performed simultaneously, resulting in low photocuring efficiency of this nail photocuring device, which affects the user experience. Summary of the Invention

[0004] In response to the above issues, and to overcome the limitations of current nail phototherapy devices in effectively curing toenails due to structural constraints, which restricts their application scenarios and results in low phototherapy curing efficiency and negatively impacts user experience, the purpose of this invention is to provide a nail phototherapy device that can be used for both hand and foot nail curing, allows simultaneous phototherapy curing of both hands or feet, and thus has a wide range of applications and high phototherapy curing efficiency.

[0005] To achieve the above objectives, the technical solution of the present invention is:

[0006] A nail phototherapy device that allows for simultaneous phototherapy of hands and feet includes a housing, a base plate, an electronic control assembly, an LED light panel, and a light guide plate. The housing has a phototherapy chamber that is connected to the front and bottom of the housing. The base plate is located at the bottom of the housing. The phototherapy chamber is rectangular in shape, with a length of 22-30 cm, a width of 15-21 cm, and a height of 5-8 cm. Each inner wall of the phototherapy chamber has a corresponding mounting cavity. The LED light panel and the light guide plate are detachably installed in their respective mounting cavities, which are connected to the interior of the housing. The LED light panel has arranged LED beads, and the light guide plate has light-transmitting holes. The hole is opposite to the LED lamp bead. The electronic control component is located inside the housing and is electrically connected to the LED lamp board. The bottom of the light guide plate has an upper and a lower latch, and two movable grooves are provided. The two movable grooves are located on the left and right sides of the upper and lower latches. A locking block is formed at the bottom of the upper latch. A positioning groove is provided on the bottom wall of the mounting cavity. A positioning plate is formed in the positioning groove. A fastening groove is provided on the top of the positioning plate. The upper and lower latches are embedded in the positioning cavity and are located on the upper and lower sides of the positioning plate, respectively. The locking block is fastened to the fastening groove. A locking tongue is formed on the top of the light guide plate. A corresponding locking hole is provided on the top wall of the mounting cavity. The locking tongue is inserted into the locking hole.

[0007] Preferably, the length, width, and height of the phototherapy chamber are 24cm, 17cm, and 7cm, respectively.

[0008] Preferably, a limiting plate is formed on the top wall of the mounting cavity, and a slot is formed between the limiting plate and the bottom wall of the mounting cavity, with the upper edge of the LED light board engaging in the slot.

[0009] Preferably, the LED light board has wiring terminals, and a corresponding support groove is formed on the light guide plate, with the wiring terminals embedded in the support groove.

[0010] Preferably, the shape of the light-transmitting hole is trumpet-shaped.

[0011] Preferably, the surface of the light guide plate is coated with a chrome plating.

[0012] Preferably, a top tube is formed on the side of the light guide plate near the LED light panel, the top tube corresponds to and communicates with the light transmission hole, and the top tube abuts against the LED light panel.

[0013] Preferably, the electronic control assembly includes a control circuit board, a battery, a charging interface, a power switch, a timer switch, and a display panel. The charging interface, power switch, timer switch, and display panel are fixed to the outer wall of the housing. The housing has a battery compartment that penetrates the outer wall, and the battery is located inside the battery compartment. The battery compartment is covered with a battery cover. The battery, charging interface, and power switch are all electrically connected to the control circuit board. The timer switch and display panel are integrated into the control circuit board. A wiring port is provided in the mounting cavity, and the LED light board's wiring harness is electrically connected to the control circuit board through the wiring port.

[0014] Preferably, the housing includes an upper shell and a lower shell, with the upper shell covering the top of the lower shell and fixed by threaded fasteners. The phototherapy chamber is located on the lower shell, the base plate is located at the bottom of the lower shell, and the control circuit board and battery are located in the lower shell. The charging interface and power switch are located in the upper shell, and the timer switch and display panel are located in the upper shell.

[0015] Preferably, the bottom of the lower shell has a locking groove, the top of the bottom plate has a corresponding guide seat, and a locking block is formed on one side of the guide seat. Both the locking groove and the locking block are L-shaped. The guide seat is inserted into the locking groove and slides with the locking groove through the locking block.

[0016] Compared with the prior art, the advantages of the present invention are as follows:

[0017] The phototherapy chamber is ergonomically designed with a rectangular shape and extended length, width, and height. Specifically, the chamber is 25-30cm long, 17-21cm wide, and 5-8cm high, allowing the feet to be placed inside for phototherapy curing of the gel applied to the nails. It completely covers the physiological characteristics of the palms and feet, allowing the hands or feet to be placed side by side and fully extended. Even when arched, it does not affect the curing process, allowing users to maintain a comfortable posture during the manicure process. This not only expands the application scenarios but also improves the efficiency of phototherapy curing and the user experience.

[0018] The LED light panels and light guide plates are detachably installed in the mounting cavities on the inner walls of the phototherapy chamber, achieving zoned setup. The detachable design ensures that if any LED on an LED light panel fails, the panel can be independently removed from the mounting cavity for targeted maintenance after the light guide plate is removed, preventing the other LED light panels from being affected by disassembly. This not only reduces maintenance difficulty and improves maintenance efficiency, but also reduces damage to other components caused by repeated disassembly and extends the overall service life. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the nail phototherapy device of this utility model;

[0020] Figure 2 This is a schematic diagram of the overall structure of the nail phototherapy device in frontal view.

[0021] Figure 3 This is a schematic diagram of the overall structure of the nail phototherapy device in the upward view position;

[0022] Figure 4 This is an exploded structural diagram of the base plate of the nail phototherapy device of this utility model after removal;

[0023] Figure 5 This is a utility model Figure 4 A magnified structural diagram of part A;

[0024] Figure 6 This is a schematic diagram of the overall structure of the light guide plate of the nail phototherapy device of this utility model;

[0025] Figure 7 This is a first-view cross-sectional structural diagram of the nail phototherapy device of this utility model;

[0026] Figure 8 This is a utility model Figure 7 A schematic diagram of the enlarged structure of part B;

[0027] Figure 9 This is a cross-sectional structural diagram of the nail phototherapy device of this utility model from a second perspective;

[0028] Figure 10 This is a utility model Figure 9 A magnified structural diagram of section C;

[0029] Figure 11 This is a cross-sectional structural diagram of the nail phototherapy device from a third-angle perspective.

[0030] Figure 12 This is a utility model Figure 11 A schematic diagram of the enlarged structure of part D;

[0031] Figure 13 This is a schematic diagram of the structure of the upper and lower shells of the nail phototherapy device of this utility model after separation;

[0032] Figure 14 This is a partial structural diagram of the base plate of the nail phototherapy device of this utility model.

[0033] As shown in the figure:

[0034] 1. Housing; 1a. Upper housing; 1b. Lower housing; 101. Phototherapy chamber; 102. Mounting cavity; 102a. Positioning groove; 102b. Positioning plate; 102c. Fastening groove; 102d. Locking hole; 102e. Limiting plate; 102f. Card slot; 102g. Wiring port; 103. Locking groove; 104. Battery compartment; 2. Base plate; 201. Guide seat; 201a. Locking block; 3. Electronic control assembly; 301. Control circuit board 302. Battery; 303. Charging interface; 304. Power switch; 305. Timer switch; 306. Display panel; 4. LED light panel; 401. LED beads; 402. Wiring terminal; 5. Light guide plate; 501. Light transmission hole; 502. Upper buckle; 502a. Buckle block; 503. Lower buckle; 504. Movable groove; 505. Locking tongue; 506. Support groove; 507. Top tube; 6. Battery cover. Detailed Implementation

[0035] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0036] In the description of this utility model, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the purpose of simplifying the description and do not indicate or imply that the orientation is a specific orientation or specific orientation structure and operation. Therefore, they should not be construed as limiting this utility model.

[0037] like Figures 1 to 8As shown, this utility model relates to a nail phototherapy device that allows for simultaneous phototherapy of hands and feet. It includes a housing 1, a base plate 2, an electronic control assembly 3, an LED light panel 4, and a light guide plate 5. A phototherapy chamber 101 is provided on the housing 1, and the chamber 101 is connected to the front and bottom of the housing 1. The base plate 2 is located at the bottom of the housing 1 and closes the lower opening of the phototherapy chamber 101, while retaining the front opening. The phototherapy chamber 101 is ergonomically designed, with a rectangular shape and extended length, width, and height. Specifically, the length of the phototherapy chamber 101 is 22–30 cm, the width is 15–21 cm, and the height is 5–8 cm, allowing the feet to be placed inside for phototherapy curing of the phototherapy gel applied to the nails, and completely covering both palms and feet. The design incorporates the physiological characteristics of the nail bed, allowing both hands or feet to be placed side-by-side and fully extended within the chamber. Even in an arched position, the photocuring process remains unaffected, enabling users to maintain a comfortable posture during the manicure process. This not only expands the application scenarios but also improves the efficiency of photocuring and the user experience. Each inner wall of the photocuring chamber 101 has a corresponding mounting cavity 102. The LED light panels 4 and light guide plates 5 are sequentially and detachably installed within the mounting cavities 102, achieving zoned installation. The detachable design ensures that if any LED bead 401 on any LED light panel 4 fails, it can be independently removed from the mounting cavity 102 for targeted maintenance after removing the light guide plate 5, preventing the remaining LED light panels 4 from being affected by disassembly. This not only reduces... This design reduces maintenance difficulty and improves maintenance efficiency, while also minimizing damage to other components caused by repeated disassembly and reassembly, thus extending the overall service life. Each mounting cavity 102 is enclosed by the installed light guide plate 5, and the LED lamp board 4 is confined inside the mounting cavity 102 by the light guide plate 5. For ease of wiring, the mounting cavity 102 is connected to the interior of the housing 1. LED beads 401 are arranged on the LED lamp board 4, and light-transmitting holes 501 are provided on the light guide plate 5. The light-transmitting holes 501 correspond one-to-one with the LED beads 401, so that the near-ultraviolet rays emitted by the LED beads 401 can be projected into the phototherapy chamber 101, allowing the phototherapy adhesive to cure quickly. The electronic control component 3 is located inside the housing 1 and establishes an electrical connection with the LED lamp board 4 through the connection between the interior of the housing 1 and the mounting cavity 102. Next, the LED lamp bead 401 is controlled to turn on and off by the electronic control component 3. The light guide plate 5 and the mounting cavity 102 are detachably fixed together by the following structure: the bottom of the light guide plate 5 has an upper buckle 502 and a lower buckle 503, and two movable grooves 504 are opened on the light guide plate 5. The two movable grooves 504 are located on the left and right sides of the upper buckle 502 and the lower buckle 503, so that the part of the light guide plate 5 connecting the upper buckle 502 and the lower buckle 503 can be bent back and forth. The bottom of the upper buckle 502 has a locking block 502a. Overall, the shape of the upper buckle 502 is an inverted L-shape. The bottom wall of the mounting cavity 102 has a positioning groove 102a. A positioning plate 102b is horizontally placed in the positioning groove 102a. The top of the positioning plate 102b has a fastening groove 102c.The upper latch 502 and the lower latch 503 are embedded in the positioning cavity. In the embedded state, the upper latch 502 and the lower latch 503 are located on the upper and lower sides of the positioning plate 102b, respectively. The latch block 502a is engaged with the fastening groove 102c. A locking tongue 505 is formed on the top of the light guide plate 5. A corresponding locking hole 102d is opened on the top wall of the mounting cavity 102. The locking tongue 505 is inserted into the locking hole 102d. That is to say, the upper and lower sides of the light guide plate 5 are stabilized by the cooperation of the locking tongue 505 with the locking hole 102d and the cooperation of the upper latch 502 and the lower latch 503 with the positioning cavity and the positioning plate 102b, respectively. With the light guide plate 5 securely fixed, when it needs to be disassembled, first move the part of the light guide plate 5 connecting the upper clip 502 and the lower clip 503 away from the positioning cavity. The light guide plate 5 rotates around the mating position of the locking tongue 505 and the locking hole 102d as the pivot point. During the rotation, the orientation angle of the upper clip 502 and the lower clip 503 changes, thereby releasing the locking state of the locking block 502a and simultaneously releasing the bottom limit of the light guide plate 5. Then, it can be easily removed by moving it along the axial direction of the locking hole 102d in two steps. Therefore, the operation is simple and provides effective support for the convenience of subsequent maintenance.

[0038] like Figure 2 and Figure 3 As shown, the length, width, and height of the phototherapy chamber 101 are 24cm, 17cm, and 7cm, respectively. Based on the above settings, it will support the phototherapy curing of both palms and feet, while providing the necessary wrapping sensation for the hands or feet during phototherapy, thereby enhancing the user's nail art experience.

[0039] like Figure 5 , Figure 11 and Figure 12 As shown, a limiting plate 102e is formed on the top wall of the mounting cavity 102, and a slot 102f is formed between the limiting plate 102e and the bottom wall of the mounting cavity 102. The upper edge of the LED light board 4 is engaged in the slot 102f. That is to say, the upper edge of the LED light board 4 is installed in the slot 102f by direct insertion, which makes the LED board easy to disassemble. At the same time, after cooperating with the slot 102f, the LED light board 4 can be accurately installed in the substrate mounting area 102. The pressing action of the light guide plate 5 ensures the installation stability and effectively avoids the problems of displacement and falling off.

[0040] like Figures 4 to 6 as well as Figure 9 and Figure 10As shown, the LED light board 4 has a wiring terminal 402, and a corresponding support groove 506 is formed on the light guide plate 5. The wiring terminal 402 is embedded in the support groove 506. The inner wall of the support groove 506 supports the wiring terminal 402 and the entire LED light board 4, preventing the LED light board 4 from falling due to gravity, and further preventing the LED light board 4 from shifting or falling off, thus improving its shift and fall-off prevention. It should be noted that the height of the support groove 506 is greater than the height of the wiring terminal 402, which can avoid interference from the wiring terminal 402 and allow the light guide plate 5 to have sufficient space to rotate during disassembly, ensuring smooth disassembly.

[0041] like Figures 1 to 4 as well as Figure 6 As shown, the light-transmitting hole 501 is shaped like a frustum, and its diameter decreases from the outside to the inside. From an external perspective, the light-transmitting hole 501 is shaped like a trumpet. The reflective surface formed by the converging inner wall causes the near-ultraviolet light emitted by the LED beads 401 to be refracted at multiple angles, breaking the straight-line propagation characteristics of the original light path. This allows the near-ultraviolet light to form a more uniform irradiation surface during diffusion. When the LED beads 401 on each LED light board 4 are lit synchronously, they will provide users with a good phototherapy curing effect.

[0042] Furthermore, the surface of the light guide plate 5 is coated with a chrome plating. When the near-ultraviolet light emitted by the LED beads 401 is projected onto the light guide plate 5, a mirror reflection effect will be formed, avoiding the diffuse scattering loss of near-ultraviolet light, ensuring the efficient transmission of phototherapy energy, and further improving the phototherapy curing effect.

[0043] like Figures 6 to 8 As shown, a top tube 507 is formed on the side of the light guide plate 5 near the LED light plate 4. The top tube 507 corresponds one-to-one with the light-transmitting hole 501. The top tube 507 is connected to the corresponding light-transmitting hole 501. The top tube 507 abuts against the LED light plate 4 and remains in contact. This will increase the friction of the contact surface and the overall rigidity, thereby suppressing the relative movement between them and keeping the relative position of the LED light plate 4 and the light guide plate 5 stable.

[0044] like Figure 1 , Figure 4 and Figure 13As shown, the electronic control component 3 includes a control circuit board 301, a battery 302, a charging interface 303, a power switch 304, a timer switch 305, and a display panel 306. The charging interface 303, power switch 304, timer switch 305, and display panel 306 are fixed to the outer wall of the housing 1. The housing 1 has a battery compartment 104 that penetrates the outer wall. The battery 302 is located inside the battery compartment 104. The battery compartment 104 is covered with a battery cover 6. The battery 302, charging interface 303, and power switch 304 are all electrically connected to the control circuit board 301. The timer switch 305 and display panel 306 are integrated on the control circuit board 301 and installed in the cavity 102. A wiring port 102g is provided. The wiring harness of the LED light board 4 is electrically connected to the control circuit board 301 through the wiring port 102g to achieve concealed wiring. The user can operate the nail phototherapy device of this utility model by controlling the power switch 304. After starting, the phototherapy time can be set by the timer switch 305. There are multiple timer switches 305 in this utility model, and each timer switch 305 corresponds to a specific phototherapy time. The phototherapy time will be displayed on the display panel 306. The battery 302 supplies power to the entire circuit. The user can charge the battery 302 by connecting the charging interface 303 and the external power source through the data cable. It should be mentioned that phototherapy curing can still be performed while charging.

[0045] like Figure 13 As shown, the housing 1 consists of an upper housing 1a and a lower housing 1b. The upper housing 1a covers the top of the lower housing 1b and is fixed by threaded fasteners. The phototherapy chamber 101 is located on the lower housing 1b, the bottom plate 2 is located at the bottom of the lower housing 1b, the control circuit board 301 and the battery 302 are located on the lower housing 1b, the charging interface 303 and the power switch 304 are located on the upper housing 1a, and the timer switch 305 and the display panel 306 are located on the upper housing 1a. The upper housing 1a and the lower housing 1b can protect the control circuit board 301, the battery 302, the charging interface 303, the power switch 304, the timer switch 305 and the display panel 306 of the electronic control components 3, thereby improving the service life of the phototherapy device of this utility model.

[0046] like Figure 4 and Figure 14As shown, a locking groove 103 is provided at the bottom of the lower shell 1b, and a guide seat 201 is formed on the top of the bottom plate 2. A locking block 201a is formed on one side of the guide seat 201. The locking groove 103 and the locking block 201a are both L-shaped. More specifically, in this utility model, the locking groove 103 has an L-shaped structure composed of a large inner diameter section and a small inner diameter section. The shape of the large inner diameter section is larger than that of the guide seat 201, so that the guide seat 201 can be inserted into the large inner diameter section of the locking groove 103. The L-shaped locking block 201a abuts against the top wall of the small inner diameter section of the locking groove 103 to form a sliding fit. At this time, the bottom plate 2 is fixed to the lower shell 1b. When the locking block 201a slides out of the small inner diameter section of the locking groove 103, the bottom plate 2 can be removed from the bottom of the lower shell 1b for cleaning or replacement.

[0047] Combination Figures 1 to 14 When using this nail light therapy device, the user turns on the power switch 304 of the electronic control component 3 to start it, and needs to preset the light therapy time using the timer switch 305. The display panel 306 will display the set time and the remaining time during the light therapy curing process. During light therapy curing, the hands or feet are placed in the light therapy chamber 101. One hand or one foot can be placed in the light therapy chamber 101, or both hands and both feet can be placed in the light therapy chamber 101 at the same time. The light therapy chamber 101 will provide ample space for the hands and feet to stretch out, allowing the user to enjoy the nail process. Maintaining a comfortable posture not only expands application scenarios but also improves the efficiency of phototherapy curing and the user experience. During phototherapy, the control circuit board 301 controls the LED beads 401 on the LED light board 4 to light up. The near-ultraviolet light emitted by the LED beads 401 is projected into the phototherapy chamber 101 through the light-transmitting holes 501 on the light guide plate 5. The horn-shaped light-transmitting holes 501 and the chrome-plated coating on the surface of the light guide plate 5 ensure that the near-ultraviolet rays are evenly distributed and form a mirror reflection effect inside the phototherapy chamber 101. To avoid diffuse scattering loss of near-ultraviolet light, ensure efficient transmission of phototherapy energy, and improve the curing effect of phototherapy, if any LED bead 401 on the LED light board 4 fails, maintenance can be performed by disassembling the light guide plate 5 and removing the LED light board 4. When disassembling the light guide plate 5, first move the part of the light guide plate 5 connecting the upper buckle 502 and the lower buckle 503 away from the positioning cavity. The light guide plate 5 rotates with the mating position of the locking tongue 505 and the locking hole 102d as the rotation fulcrum. During the rotation, the upper buckle 502 and the lower buckle 503... By changing the angle of buckle 503, the latching state of block 502a can be released, and the bottom limit of light guide plate 5 can be released. Then, by moving it along the axial direction of lock hole 102d, the light guide plate 5 can be easily removed for maintenance of LED light board 4. The bottom plate 2 of the housing 1 can also be cleaned and replaced. Simply slide guide seat 201 along lock groove 103 to disengage lock block 201a, and the guide seat 201 can be separated from lock groove 103, and the fixation of bottom plate 2 to housing 1 can be released, making it easy to clean or replace.

[0048] The embodiments and descriptions above are merely illustrative of the principles and preferred embodiments of this utility model. Various changes and modifications may be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of this utility model as claimed.

Claims

1. A nail phototherapy device that allows for simultaneous phototherapy of hands and feet, characterized in that, It includes a housing (1), a base plate (2), an electrical control assembly (3), an LED light panel (4), and a light guide plate (5). A phototherapy chamber (101) is provided on the housing (1), and the phototherapy chamber (101) is connected to the front and bottom of the housing (1). The base plate (2) is located at the bottom of the housing (1). The phototherapy chamber (101) is rectangular in shape, with a length of 22-30 cm, a width of 15-21 cm, and a height of 5-8 cm. Each inner wall has a corresponding mounting cavity (102). The LED lamp board (4) and the light guide plate (5) are detachably installed in their respective mounting cavities (102). The mounting cavity (102) is connected to the interior of the housing (1). LED lamp beads (401) are arranged on the LED lamp board (4). The light guide plate (5) has a light-transmitting hole (501) which is opposite to the LED lamp beads (401). The electronic control component (3) is located inside the housing (1) and is connected to the LED lamp beads (401). The LED light board (4) is electrically connected. The bottom of the light guide plate (5) has an upper buckle (502) and a lower buckle (503), and two movable grooves (504) are provided. The two movable grooves (504) are located on the left and right sides of the upper buckle (502) and the lower buckle (503). A locking block (502a) is formed at the bottom of the upper buckle (502). A positioning groove (102a) is provided on the bottom wall of the mounting cavity (102). A positioning plate (102b) is formed in the positioning groove (102a). The top of the positioning plate (102b) is provided with a fastening groove (102c). The upper buckle (502) and the lower buckle (503) are embedded in the positioning cavity and are located on the upper and lower sides of the positioning plate (102b) respectively. The locking block (502a) is fastened with the fastening groove (102c). The top of the light guide plate (5) is formed with a locking tongue (505). The top wall of the mounting cavity (102) is provided with a corresponding locking hole (102d). The locking tongue (505) is inserted into the locking hole (102d).

2. The nail phototherapy device for simultaneous hand and foot phototherapy according to claim 1, characterized in that, The length, width and height of the phototherapy chamber (101) are 24cm, 17cm and 7cm respectively.

3. A nail phototherapy device for simultaneous hand and foot phototherapy according to claim 1 or 2, characterized in that, The top wall of the mounting cavity (102) forms a limiting plate (102e), and a slot (102f) is formed between the limiting plate (102e) and the bottom wall of the mounting cavity (102). The upper edge of the LED light board (4) is engaged in the slot (102f).

4. A nail phototherapy device for simultaneous hand and foot phototherapy according to claim 3, characterized in that, The LED light board (4) has a wiring terminal (402), and a corresponding support groove (506) is formed on the light guide plate (5). The wiring terminal (402) is embedded in the support groove (506).

5. A nail phototherapy device for simultaneous hand and foot phototherapy according to any one of claims 1, 2, or 4, characterized in that, The light-transmitting hole (501) is trumpet-shaped.

6. A nail phototherapy device for simultaneous hand and foot phototherapy according to claim 5, characterized in that, The surface of the light guide plate (5) is coated with a chrome plating.

7. A nail phototherapy device for simultaneous hand and foot phototherapy according to claim 6, characterized in that, The light guide plate (5) has a top tube (507) formed on the side near the LED lamp plate (4). The top tube (507) corresponds to the light-transmitting hole (501) and is connected to the light-transmitting hole (501). The top tube (507) abuts against the LED lamp plate (4).

8. A nail phototherapy device for simultaneous phototherapy of hands and feet according to any one of claims 1, 2, 4, 6 or 7, characterized in that, The electronic control component (3) includes a control circuit board (301), a battery (302), a charging interface (303), a power switch (304), a timer switch (305), and a display panel (306). The charging interface (303), power switch (304), timer switch (305), and display panel (306) are fixed to the outer wall of the housing (1). The housing (1) has a battery compartment (104) that penetrates the outer wall. The battery (302) is located in the battery compartment (104). 4) Inside, the battery compartment (104) is covered with a battery cover (6). The battery (302), charging interface (303) and power switch (304) are all electrically connected to the control circuit board (301). The timer switch (305) and display panel (306) are integrated on the control circuit board (301). A wiring port (102g) is provided in the mounting cavity (102). The wiring harness of the LED light board (4) is electrically connected to the control circuit board (301) through the wiring port (102g).

9. A nail phototherapy device for simultaneous hand and foot phototherapy according to claim 8, characterized in that, The housing (1) includes an upper shell (1a) and a lower shell (1b). The upper shell (1a) covers the top of the lower shell (1b) and is fixed by threaded fasteners. The phototherapy chamber (101) is located on the lower shell (1b). The bottom plate (2) is located at the bottom of the lower shell (1b). The control circuit board (301) and the battery (302) are located on the lower shell (1b). The charging interface (303) and the power switch (304) are located on the upper shell (1a). The timer switch (305) and the display panel (306) are located on the upper shell (1a).

10. A nail phototherapy device for simultaneous hand and foot phototherapy according to claim 9, characterized in that, The bottom of the lower shell (1b) is provided with a locking groove (103), and the top of the bottom plate (2) is provided with a guide seat (201). A locking block (201a) is formed on one side of the guide seat (201). The locking groove (103) and the locking block (201a) are both L-shaped. The guide seat (201) is inserted into the locking groove (103) and slides with the locking groove (103) through the locking block (201a).

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