Ultrasonic dental scaler with disinfection function

Abstract

The utility model discloses an ultrasonic dental scaler with a disinfection function, which comprises a shell, a support fixed in the shell in a penetrating manner, a bottom cover fixed at the bottom of the shell, a control circuit board, an ultrasonic transducer and a battery which are mounted in the support, a dental cleaning head mounted at the upper end of the ultrasonic transducer, and a protective cover sleeved at the upper end of the shell, an LED light-emitting module electrically connected with the control circuit board is arranged at the upper end of the shell and comprises a plurality of white light LED lamp beads and a plurality of purple light LED lamp beads, and the purple light LED lamp beads are located under the tip end of the tooth cleaning head. According to the utility model, the white-light LED lamp beads can generate light to irradiate on teeth, so that a user can observe the condition of the teeth conveniently; the ultraviolet LED lamp beads generate ultraviolet light to irradiate the tip end of the tooth cleaning head for disinfection, the cleanliness of the tooth cleaning head is improved, the LED light-emitting module is installed at the upper end of the shell, the LED light-emitting module is conveniently and electrically connected with the control circuit board, the number of parts is small, the structure is simple, and cost is low.

Description

TECHNICAL FIELD

[0001] The utility model relates to tooth cleaning tool technical field, especially a ultrasonic tooth cleaner with disinfection function. BACKGROUND

[0002] With people pay more and more attention to oral health, there are all kinds of cleaning tools for teeth on the market. Tooth cleaner can be used to remove dental calculus, dental plaque and other stains, generally including handle for user to operate conveniently and working head for actual cleaning work on the tooth cleaning part. Among them, ultrasonic tooth cleaner uses high frequency and high energy generated by ultrasonic wave to drive the tooth cleaner, to loosen the small dental calculus attached to the tooth, remove dental plaque and other dirt, clean the tooth and keep oral health, which is a household tooth cleaning tool.

[0003] The Chinese utility model patent with patent application number 202121097982.2 discloses an ultrasonic tooth cleaner with UV disinfection function, which comprises a cover, a tooth cleaning part, a UV disinfection part, a lower shell, a control part and a power connection interface. The tooth cleaning part comprises an inner cover and a transducer, the inner cover comprises a first jack and a second jack, the transducer is inserted into the first jack, and a contact switch is arranged in the second jack. The UV disinfection part is fixed in the cover, and the UV disinfection part comprises an FPC-UV lamp strip and a spring needle corresponding to the position of the second jack. The FPC-UV lamp strip is electrically connected with the spring needle. When the spring needle is inserted into the second jack and contacts with the contact switch, the FPC-UV lamp strip emits ultraviolet light to disinfect the tooth cleaning part. The lower shell is connected with the bottom end of the inner cover, and the lower shell is provided with a first mounting hole. The control part is arranged in the lower shell and comprises a control mainboard, which is electrically connected with the transducer and the contact switch respectively. The power connection interface is inserted into the first mounting hole, and the power connection interface is electrically connected with the control mainboard. The above-mentioned ultrasonic tooth cleaner is convenient for disinfection at any time.

[0004] The UV disinfection part of the above-mentioned ultrasonic tooth cleaner is fixed in the cover. Since the cover needs to be disassembled relative to the lower shell during use, the FPC-UV lamp strip of the UV disinfection part is in contact with the contact switch of the tooth cleaning part through the spring needle to control power supply. The structure is complex, and many parts are used, which is not conducive to cost reduction.

[0005] Therefore, the present inventors propose the following technical solutions. UTILITY MODEL CONTENTS

[0006] The utility model aims at overcoming the defects of prior art, and provides an ultrasonic tooth cleaner with disinfection function.

[0007] In order to solve the above technical problems, the utility model adopts the following technical scheme: the ultrasonic tooth cleaner with disinfection function includes: a shell, a support fixed in the shell, a bottom cover fixed at the bottom of the shell and limiting the support in the shell, a control circuit board and an ultrasonic transducer and a battery installed in the support and electrically connected with each other, a tooth cleaning head installed at the upper end of the ultrasonic transducer and extending out of the upper end of the shell, and a protective cover sleeved on the upper end of the shell and covering the tooth cleaning head, wherein the upper end of the shell is provided with an LED light emitting module, the LED light emitting module is electrically connected with the control circuit board, and the LED light emitting module is located directly below the tip of the tooth cleaning head, wherein the LED light emitting module comprises a plurality of white light LED lamp beads for illumination and a plurality of ultraviolet light LED lamp beads for generating ultraviolet light to irradiate the tip of the tooth cleaning head for disinfection, and the ultraviolet light LED lamp beads are located directly below the tip of the tooth cleaning head.

[0008] Further, in the above technical scheme, the upper end of the support is further provided with a camera electrically connected with the control circuit board, the upper end of the camera is exposed to the upper end of the shell, and the upper end of the camera is provided with the LED light emitting module.

[0009] Further, in the above technical scheme, the camera is connected with an FPC board and electrically connected with the control circuit board through the FPC board.

[0010] Further, in the above technical scheme, the shell opening is provided with a soft rubber seat, the soft rubber seat has a first through hole penetrating the upper and lower ends and a second through hole located beside the first through hole, the camera is arranged in the first through hole and forms a sealed assembly, the ultrasonic transducer is arranged in the second through hole, and the lower end of the second through hole is formed into a sealing ring protruding from the outside to the inside and sealingly assembled with the outer surface of the ultrasonic transducer, and after the lower end of the tooth cleaning head is screwed and fixed on the upper end of the ultrasonic transducer, a gap is formed between the lower end of the tooth cleaning head and the second through hole.

[0011] Further, in the above technical scheme, the upper end surface of the protective cover meets the outer surface at least one circle of diamond cut surface for decoration.

[0012] Further, in the above technical scheme, the shell is provided with an annular rib and an annular positioning groove located below the annular rib, and the longitudinal section of the annular rib is arc-shaped; the inner wall of the protective cover is provided with an inwardly protruding snap ring at the lower end, the snap ring is snapped into the annular positioning groove beyond the annular rib, so as to fix the protective cover on the shell.

[0013] Further, in the above technical solution, the outer side of the shell is further provided with a display and control assembly, which comprises: a transparent or translucent panel; a key which is arranged in a hole of the panel and the end of which is arranged in the shell and connected with a switch on the control circuit board; a light shield which is arranged on the inner side of the panel and is provided with a first light transmission pattern, a second light transmission pattern and a plurality of light transmission windows; a light transmission plate which is provided with a first light transmission hole, a second light transmission hole and a third light transmission hole which are respectively matched with the first light transmission pattern, the second light transmission pattern and the light transmission windows, and is fixed on the surface of the control circuit board, and the control circuit board is provided with a plurality of LEDs which are respectively arranged in the first light transmission hole, the second light transmission hole and the third light transmission hole; a backing plate which is arranged on the surface of the light transmission plate and is in contact with the inner wall of the shell; the outer side of the shell is provided with a mounting groove, the bottom surface of the mounting groove is provided with a first hole, a second hole and a third hole which are respectively matched with the first light transmission pattern, the second light transmission pattern and the light transmission windows, and the panel is buckled and fixed in the mounting groove.

[0014] Further, in the above technical solution, the bottom surface of the mounting groove is an arc surface, the cross section of the panel is an arc, and the inner surface of the panel is provided with a reverse buckle on both sides; the bottom surface of the mounting groove is provided with a clamping groove which is matched with the reverse buckle, the panel is buckled and fixed through the reverse buckle and the clamping groove, and the outer surface of the panel is smoothly connected with the outer surface of the shell.

[0015] Further, in the above technical solution, the bracket is integrally formed by plastic, the upper end of the bracket is provided with a first mounting position and a second mounting position on both sides respectively, and the camera and the ultrasonic transducer are respectively arranged in the first mounting position and the second mounting position; the lower end of the bracket is provided with a third mounting position and a fourth mounting position on both sides respectively, and the control circuit board and the battery are respectively arranged in the third mounting position and the fourth mounting position.

[0016] Further, in the above technical solution, the third mounting position is formed with a positioning column, and the outer side of the third mounting position is provided with a plurality of buckles; the control circuit board is provided with a positioning hole, the control circuit board is pressed into the positioning hole, the positioning hole is inlaid and positioned with the positioning column, and the buckles are buckled around the control circuit board to lock the control circuit board in the third mounting position.

[0017] Compared with the prior art, the utility model has the advantages that: the utility model adds LED light emitting module, the white light LED lamp pearl in the LED light emitting module can produce light irradiation on teeth, so that the user can observe the condition on the teeth, so as to achieve the purpose of precise tooth cleaning, the purple light LED lamp pearl in the LED light emitting module can produce ultraviolet light to irradiate the tooth cleaning head tip to disinfect, improve the cleanliness of the tooth cleaning head, and the utility model is extremely convenient to use, and the LED light emitting module is installed on the upper end of the shell, which is convenient for electrically connecting with the control circuit board, does not need to use spring needle and other parts, can reduce the number of parts, and the structure is simple, which is beneficial to reduce the cost. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the perspective view of the utility model;

[0019] Figure 2 is the perspective view of the protective cover in the utility model;

[0020] Figure 3 is the sectional view of the utility model;

[0021] Figure 4 is the split view of the utility model;

[0022] Figure 5 is the perspective view of the utility model after the protective cover is removed;

[0023] Figure 6 is the internal structure view of the utility model;

[0024] Figure 7 is the assembly view of the camera and the LED light emitting module in the utility model;

[0025] Figure 8 is the circuit diagram in the utility model. DETAILED DESCRIPTION

[0026] The utility model is further illustrated below in combination with specific embodiments and drawings.

[0027] See Figures 1-8 As shown in the figure, it is an ultrasonic tooth cleaner with disinfection function, which comprises: a shell 1, a support 2, a bottom cover 3, a control circuit board 4, an ultrasonic transducer 51, a battery 52, a tooth cleaning head 53 and a protective cover 8.

[0028] The bracket 2 is arranged in the shell 1, the bottom cover 3 is arranged at the bottom of the shell 1 and limits the bracket 2 in the shell 1, the control circuit board 4, the ultrasonic transducer 51 and the battery 52 are arranged in the bracket 2 and are electrically connected with each other, wherein the battery 52 is a rechargeable battery and is used for supplying power to the whole ultrasonic tooth cleaner, and the control circuit board 4 is used for driving the ultrasonic transducer 51 to work.

[0029] The shell 1 is provided with an LED light-emitting module 61 at the upper end, the LED light-emitting module 61 is electrically connected with the control circuit board 4, the LED light-emitting module 61 is driven by the control circuit board 4 to work, and the LED light-emitting module 61 is located directly below the tip of the tooth cleaning head 53, wherein the LED light-emitting module 61 comprises a plurality of white light LED lamp beads 611 used for illumination and a plurality of ultraviolet light LED lamp beads 612 used for generating ultraviolet light to irradiate the tip of the tooth cleaning head 53 to disinfect, and the ultraviolet light LED lamp beads 612 are located directly below the tip of the tooth cleaning head 53. In specific use, when the user uses the ultrasonic tooth cleaner to clean the teeth, the control circuit board 4 only controls the white light LED lamp beads 611 to work, and controls the ultraviolet light LED lamp beads 612 not to work, at this time, the light generated by the white light LED lamp beads 611 irradiates on the teeth, so that the user can observe the condition of the teeth, so as to achieve the purpose of accurate tooth cleaning; when the ultrasonic tooth cleaner is not used and is charged, the control circuit board 4 only controls the white light LED lamp beads 611 not to work, and controls the ultraviolet light LED lamp beads 612 to work, the ultraviolet light LED lamp beads 612 generate ultraviolet light to irradiate the tip of the tooth cleaning head 53 to disinfect, and improve the cleanliness of the tooth cleaning head 53. That is to say, the LED light-emitting module 61 is additionally arranged, the white light LED lamp beads 611 in the LED light-emitting module 61 can generate light to irradiate on the teeth, so that the user can observe the condition of the teeth, so as to achieve the purpose of accurate tooth cleaning; the ultraviolet light LED lamp beads 612 in the LED light-emitting module 61 can generate ultraviolet light to irradiate the tip of the tooth cleaning head 53 to disinfect, and improve the cleanliness of the tooth cleaning head 53, which is extremely convenient to use, and the LED light-emitting module 61 is arranged at the upper end of the shell 1, which is convenient for electrically connecting with the control circuit board 4, and does not need to use spring needles and other parts, so that the number of parts can be reduced, the structure is simple, and the cost can be reduced.

[0030] In the embodiment, the number of white light LED lamp beads 611 is four, and the number of ultraviolet light LED lamp beads 612 is two.

[0031] The upper end of the support 2 is also provided with a camera 6 electrically connected with the control circuit board 4, and the camera 6 is a cylindrical camera. The upper end of the camera 6 is exposed to the upper end of the shell 1, and the camera 6 has a visual function. When a user cleans teeth by himself, the user can observe the inside of the oral cavity according to his own will during the oral cavity cleaning process, so that some parts that are difficult to clean can be effectively cleaned, the cleaned parts are completely cleaned, targeted tooth cleaning work is realized, and the upper end of the camera 6 is provided with the LED light emitting module 61. It can also be other structures, and in other embodiments, the upper end of the support 2 is also provided with an LED lamp plate electrically connected with the control circuit board 4, and the LED lamp plate is provided with the LED light emitting module 61.

[0032] The camera 6 is connected with an FPC plate 62 and electrically connected with the control circuit board 4 through the FPC plate 62, so that the space occupied is less, and the FPC plate 62 can be more conveniently installed and positioned.

[0033] In the embodiment, the shell 1 is provided with a soft rubber seat 7 at the opening, the soft rubber seat 7 has a first through hole 71 penetrating the upper and lower ends and a second through hole 72 located beside the first through hole 71, the camera 6 is arranged in the first through hole 71 and is in sealed assembly, so that the camera 6 is stably installed on the upper end of the shell 1 and has better waterproof effect. The ultrasonic transducer 51 is arranged in the second through hole 72, and the lower end of the second through hole 72 is formed with a sealing ring 73 protruding from the outside to the inside, which is in sealed assembly with the outer surface of the ultrasonic transducer 51, so that better waterproof effect can be formed. After the lower end of the tooth cleaning head 53 is screwed and fixed on the upper end of the ultrasonic transducer 51, a gap 720 is formed between the lower end of the tooth cleaning head 53 and the second through hole 72, which can facilitate the vibration work of the tooth cleaning head 53.

[0034] The support 2 is integrally formed by plastic, and the shell 1 is also an integral structure. The support 2 and the shell 1 have less structure, are convenient to install, and have high structural strength.

[0035] The upper end of the support 2 is provided with a first mounting position 21 and a second mounting position 22 on both sides, respectively, and the camera 6 and the ultrasonic transducer 51 are arranged in the first mounting position 21 and the second mounting position 22, respectively. The lower end of the support 2 is provided with a third mounting position 23 and a fourth mounting position 24 on both sides, respectively, and the control circuit board 4 and the battery 52 are arranged in the third mounting position 23 and the fourth mounting position 24, respectively. The mounting structure is stable, and the layout is reasonable.

[0036] The third mounting position 23 is formed with a positioning column 231, and a plurality of buckling bodies 232 are arranged outside the third mounting position 23; the control circuit board 4 is provided with a positioning hole 43, the control circuit board 4 is pressed into the positioning hole 43, the positioning hole 43 is inlaid with the positioning column 231, the buckling body 232 is buckled on the periphery of the control circuit board 4, so as to lock the control circuit board 4 in the third mounting position 23, and the assembly structure is extremely stable.

[0037] The upper end surface of the protective cover 8 is provided with at least one circle of diamond cut surfaces 81 for decoration, and the diamond cut surfaces 81 can improve the decoration effect of the whole product, and can better attract the favor of consumers.

[0038] The assembly structure of the protective cover 8 and the shell 1 is as follows: the shell 1 is provided with an annular protruding rib 11 and an annular positioning groove 12 located below the annular protruding rib 11, and the longitudinal section of the annular protruding rib 11 is arc-shaped; the inner wall of the protective cover 8 is provided with a clamping ring 82 protruding inwardly at the lower end, the clamping ring 82 is clamped into the annular positioning groove 12 beyond the annular protruding rib 11, so as to fix the protective cover 8 on the shell 1, the assembly structure is stable, and the structure is simple.

[0039] The shell 1 is further provided with a display and control assembly 9, the display and control assembly 9 displays various working states and controls the entire ultrasonic dental cleaner through the control circuit board 4, and is more convenient to use.

[0040] The display and control assembly 9 comprises a panel 91, a key 92, a light-shielding sheet 93, a light-transmitting plate 94 and a pad plate 95.

[0041] The panel 91 is transparent or translucent, which facilitates the display of light patterns or marks.

[0042] The key 92 is arranged in the hole position 911 of the panel 91, and the end of the key 92 is arranged in the shell 1 and connected with the switch 41 on the control circuit board 4, which is used for control.

[0043] The light-shielding sheet 93 is arranged on the inner side of the panel 91, and the light-shielding sheet 93 is provided with a first light-transmitting pattern 931, a second light-transmitting pattern 932 and a plurality of light-transmitting windows 933; the inner side of the light-shielding sheet 93 has a light-shielding layer, and the first light-transmitting pattern 931, the second light-transmitting pattern 932 and the plurality of light-transmitting windows 933 are engraved on the light-shielding layer by laser engraving.

[0044] The light-transmitting plate 94 is provided with a plurality of first light-transmitting holes 941, second light-transmitting holes 942 and third light-transmitting holes 943 respectively matched with the first light-transmitting pattern 931, the second light-transmitting pattern 932 and the light-transmitting window 933, and is fixedly attached to the surface of the control circuit board 4, and a plurality of LEDs 42 are arranged on the control circuit board 4 and correspondingly arranged in the first light-transmitting holes 941, the second light-transmitting holes 942 and the third light-transmitting holes 943.

[0045] The gasket plate 95 is arranged on the surface of the light-transmitting plate 94 and is in contact with the inner wall of the shell 1, and the shell 1 is provided with a mounting groove 13 on the outer side, and the bottom surface of the mounting groove 13 is provided with a first hole site 131, a second hole site 132 and a third hole site 133 corresponding to the first light-transmitting pattern 931, the second light-transmitting pattern 932 and the light-transmitting window 933, and the panel 91 is buckled and fixed in the mounting groove 13.

[0046] During operation, some of the plurality of LEDs 42 on the control circuit board 4 work, and the light passes through the first light-transmitting holes 941 and / or the second light-transmitting holes 942 and / or the third light-transmitting holes 943, passes through the first hole site 131 and / or the second hole site 132 and / or the third hole site 133, and is finally displayed on the panel 91.

[0047] The bottom surface of the mounting groove 13 is an arc surface, the cross section of the panel 91 is an arc, and both sides of the inner surface of the panel 91 are provided with reverse buckles 912; both sides of the bottom surface of the mounting groove 13 are provided with clamping grooves 134 matched with the reverse buckles 912, the panel 91 is buckled and fixed through the reverse buckles 912 and the clamping grooves 134, and the outer surface of the panel 91 is smoothly connected with the outer surface of the shell 1, so that the appearance is more beautiful and the structure is more stable.

[0048] The control circuit board 4 is provided with a driving circuit 40 for driving the camera 6 and the LED light-emitting module 61 to work, as shown in the figure. Figure 8

[0049] In summary, the LED light-emitting module 61 is additionally arranged, the white light LED lamp bead 611 in the LED light-emitting module 61 can generate light to irradiate on the teeth, so that the user can observe the condition on the teeth, so as to achieve the purpose of precise tooth cleaning; the ultraviolet light generated by the purple light LED lamp bead 612 in the LED light-emitting module 61 can irradiate on the tip of the tooth cleaning head 53 to disinfect, so as to improve the cleanliness of the tooth cleaning head 53, which is extremely convenient to use, and the LED light-emitting module 61 is arranged on the upper end of the shell 1, which is convenient for electrical connection with the control circuit board 4, and does not need to use spring needles and other parts, so that the number of parts can be reduced, the structure is simple, and the cost can be reduced.

[0050] ​Of course, the above only the specific embodiments of the present application, not to limit the scope of the present application, all equivalent changes or modifications made in accordance with the principles of the present application described in the scope of the present application, should be included in the scope of the present application.

Claims

1. An ultrasonic tooth scaler with sterilization function, comprising: The shell (1), the support (2) fixedly arranged in the shell (1), the bottom cover (3) fixedly arranged at the bottom of the shell (1) and limiting the support (2) in the shell (1), the control circuit board (4) and the ultrasonic transducer (51) and the battery (52) installed in the support (2) and electrically connected with each other, the tooth cleaning head (53) installed on the upper end of the ultrasonic transducer (51) and extending out of the upper end of the shell (1), the protective cover (8) sleeved on the upper end of the shell (1) and covering the tooth cleaning head (53), The LED light-emitting module (61) is electrically connected with the control circuit board (4), and the LED light-emitting module (61) is located directly below the tip of the tooth cleaning head (53), wherein the LED light-emitting module (61) comprises a plurality of white light LED lamp beads (611) for illumination and a plurality of ultraviolet light LED lamp beads (612) for generating ultraviolet light to irradiate the tip of the tooth cleaning head (53) for sterilization, and the ultraviolet light LED lamp beads (612) are located directly below the tip of the tooth cleaning head (53).

2. The ultrasonic tooth scaler with sterilization function according to claim 1, characterized in that: The upper end of the support (2) is further provided with the camera (6) electrically connected with the control circuit board (4), and the upper end of the camera (6) is exposed to the upper end of the shell (1), and the upper end of the camera (6) is provided with the LED light-emitting module (61).

3. The ultrasonic tooth scaler with sterilization function according to claim 2, characterized in that: The camera (6) is connected with the FPC board (62) and is electrically connected with the control circuit board (4) through the FPC board (62).

4. The ultrasonic tooth scaler with sterilization function according to claim 2, characterized in that: The shell (1) is provided with the soft rubber seat (7) at the opening, the soft rubber seat (7) has the first through hole (71) penetrating through the upper and lower ends and the second through hole (72) located on the side of the first through hole (71), the camera (6) is arranged in the first through hole (71) and forms a sealed assembly, the ultrasonic transducer (51) is arranged in the second through hole (72), and the lower end of the second through hole (72) is formed with the outwardly convex sealing ring (73) which is sealed and assembled with the outer surface of the ultrasonic transducer (51), and after the lower end of the tooth cleaning head (53) is screwed and fixed on the upper end of the ultrasonic transducer (51), a gap (720) is formed between the lower end of the tooth cleaning head (53) and the second through hole (72).

5. The ultrasonic tooth scaler with sterilization function according to claim 1, characterized in that: At least one circle of diamond cut surfaces (81) for decoration is arranged at the junction of the upper end surface and the outer surface of the protective cover (8).

6. The ultrasonic tooth scaler with sterilization function according to claim 5, characterized in that: The shell (1) is provided with the annular protrusion (11) and the annular positioning groove (12) located on the lower side of the annular protrusion (11), and the longitudinal section of the annular protrusion (11) is arc-shaped; the inner wall of the protective cover (8) is provided with the inwardly convex snap ring (82) at the lower end, the snap ring (82) is snapped into the annular positioning groove (12) beyond the annular protrusion (11), so as to fix the protective cover (8) on the shell (1).

7. The ultrasonic tooth scaler with sterilization function according to any one of claims 1-6, characterized in that: The shell (1) is further provided with the display and control assembly (9), the display and control assembly (9) comprises: A transparent or translucent panel (91); A key (92) is arranged in a hole (911) of the panel (91), and the key (92) is arranged in the shell (1) and connected with a switch (41) on the control circuit board (4); A light shielding sheet (93) is arranged on the inner side of the panel (91), and the light shielding sheet (93) is provided with a first light transmission pattern (931), a second light transmission pattern (932) and a plurality of light transmission windows (933); A light transmission plate (94) is provided with a first light transmission hole (941), a second light transmission hole (942) and a third light transmission hole (943) corresponding to the first light transmission pattern (931), the second light transmission pattern (932) and the light transmission window (933), and the light transmission plate (94) is fixed on the surface of the control circuit board (4), and a plurality of LEDs (42) are arranged on the control circuit board (4), and the LEDs (42) are arranged in the first light transmission hole (941), the second light transmission hole (942) and the third light transmission hole (943) one by one; A pad (95) is arranged on the surface of the light transmission plate (94) and in contact with the inner wall of the shell (1); The outer side of the shell (1) is provided with a mounting groove (13), and the bottom surface of the mounting groove (13) is provided with a first hole (131), a second hole (132) and a third hole (133) corresponding to the first light transmission pattern (931), the second light transmission pattern (932) and the light transmission window (933), and the panel (91) is clamped and fixed in the mounting groove (13).

8. The ultrasonic tooth scaler with sterilization function according to claim 7, characterized in that: The bottom surface of the mounting groove (13) is an arc surface, the cross section of the panel (91) is an arc, and the inner surface of the panel (91) is provided with a reverse buckle (912) on both sides; the bottom surface of the mounting groove (13) is provided with a clamping groove (134) corresponding to the reverse buckle (912), and the panel (91) is clamped and fixed by the reverse buckle (912) and the clamping groove (134), and the outer surface of the panel (91) is smoothly connected with the outer surface of the shell (1).

9. The ultrasonic tooth scaler with sterilization function according to claim 2, characterized in that: The bracket (2) is integrally formed by plastic, and the bracket (2) is provided with a first mounting position (21) and a second mounting position (22) on both sides of the upper end, and the camera (6) and the ultrasonic transducer (51) are arranged in the first mounting position (21) and the second mounting position (22) respectively; the bracket (2) is provided with a third mounting position (23) and a fourth mounting position (24) on both sides of the lower end, and the control circuit board (4) and the battery (52) are arranged in the third mounting position (23) and the fourth mounting position (24) respectively.

10. The ultrasonic tooth scaler with sterilization function according to claim 9, characterized in that: The third mounting position (23) is formed with a positioning column (231), and the outer side of the third mounting position (23) is provided with a plurality of buckles (232); the control circuit board (4) is provided with a positioning hole (43), and after the control circuit board (4) is pressed into the positioning hole (43), the positioning hole (43) and the positioning column (231) are embedded and positioned, and the buckles (232) are buckled around the control circuit board (4) to lock the control circuit board (4) in the third mounting position (23).

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