Hand-held intraoral shooting mirror easy to clean

Abstract

The invention relates to a handheld intraoral shooting mirror easy to clean, which is applied to the technical field of handheld intraoral shooting and comprises a vertical rod, a shooting head and a shooting intelligent controller, an automatic rotating assembly is mounted in the middle of the vertical rod, an automatic telescopic assembly is mounted in the middle of a cross rod, and a control button is mounted on a handheld rod; a camera module and a light supplementing lamp arranged on the outer ring of the camera module are respectively mounted at the front end of the camera head, and a plurality of reflectors distributed along the circumferential direction of the camera head are inserted into the end part of the camera head; the shooting intelligent controller is provided with an instruction module, a processing module and a shooting positioning module, the instruction module is connected with the processing module, by adopting the structure, the shooting intelligent controller can flexibly control the illumination intensity in the oral cavity shooting process, the shooting requirement is met, the position of the reflective mirror is adjusted, and different parts in the oral cavity are shot; the camera module and the reflective mirror are automatically demisted in the shooting process, so that a better shooting effect is achieved.

Description

Technical Field

[0001] The invention relates to an intraoral photography mirror, in particular to an easy-to-clean handheld intraoral photography mirror applied in the technical field of handheld intraoral photography. Background Art

[0002] In order to directly record the tooth arrangement and occlusion before, during and after treatment, and to provide visual data for diagnosis and treatment design, and evaluation of the effect during and after treatment, it is necessary to take intraoral images of patients with malocclusion. In order to observe the arrangement and occlusion of the upper and lower teeth, it is generally necessary to use cameras, intraoral mirrors and other equipment to take intraoral images of patients with malocclusion.

[0003] The patent with publication number CN221487815U discloses a handheld intraoral photography device, including a camera module, an intraoral mirror assembly and a support, one end of the support is connected to the camera module, and the other end is connected to the intraoral mirror assembly, and the mirror surface of the intraoral mirror assembly is arranged opposite to the lens of the camera module; wherein the intraoral mirror assembly can rotate along an axis perpendicular to the length direction of the support and can reciprocate between a first position and a second position in the length direction of the support, so that the camera module can capture the patient's intraoral image reflected on the mirror surface, and different shooting angles can be achieved by installing an adjustable mirror in front of the camera module and adjusting the mirror angle.

[0004] When the above method is implemented, it is necessary to install a mirror and repeatedly adjust the angle of the mirror during shooting. Shooting and adjusting the mirror angle may require the cooperation of multiple people. When the mirror is deep in the mouth and the camera module is close to the mouth, it is easy to fog up due to the temperature difference. The mirror needs to be repeatedly taken out for cleaning and the camera module needs to be wiped. The intraoral shooting process is relatively cumbersome, which affects the imaging quality of the patient's intraoral images. Summary of the invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that, when taking pictures, it is necessary to install a mirror and repeatedly adjust the angle of the mirror. Taking pictures and adjusting the angle of the mirror may require the cooperation of multiple people. When the mirror is deep into the mouth and the camera module is close to the mouth, it is easy to fog up due to the temperature difference. It is necessary to repeatedly take out the mirror for cleaning and wipe the camera module. The intraoral shooting process is relatively cumbersome, which affects the imaging quality of the patient's intraoral images.

[0006] In order to solve the above problems, the present invention provides an easy-to-clean handheld intraoral photography mirror, comprising:

[0007] The vertical pole, the middle of which is equipped with an automatic rotating assembly for driving the top of the vertical pole to move around its axis, the top of the vertical pole is equipped with a cross bar, the middle of which is equipped with an automatic telescopic assembly for driving the cross bar to move along its axial direction, and the bottom of the vertical pole is fixed with a hand-held rod, on which a control button is installed;

[0008] A shooting head, which is mounted at the front end of the crossbar, and is respectively mounted with a camera module and a fill light arranged at the outer ring of the camera module, a lens hot air outlet facing the camera module is provided on the shooting head, a light sensor is mounted at the end of the shooting head, and a plurality of reflectors distributed along the circumference of the shooting head are plugged into the end of the shooting head, and a driving mechanism corresponding to the reflector is mounted on the shooting head, which is used to control the corresponding reflector to extend from the end of the shooting head;

[0009] A shooting intelligent controller is installed in the vertical pole. The shooting intelligent controller is provided with a command module, a processing module and a shooting positioning module. The command module is electrically connected with the processing module, the control button and the touch display screen respectively. The touch display screen is installed on the vertical pole. The processing module is electrically connected with the shooting positioning module, the driving mechanism, the camera module, the fill light and the light sensor respectively. The shooting positioning module is electrically connected with the automatic telescopic component and the automatic rotation component respectively.

[0010] In the above-mentioned easy-to-clean handheld intraoral photography mirror, the shooting intelligent controller can flexibly control the light intensity during the oral shooting process to meet the shooting needs, and adjust the position of the reflector to shoot different parts of the oral cavity. During the shooting process, the camera module and the reflector are automatically defogged to achieve better shooting effects.

[0011] As a further improvement of the present application, a storage groove matching the reflector is provided on the shooting head, and the end of the reflector away from the camera module is rotatably connected to a connecting plate through a rotating shaft. An arc groove matching the rotating shaft is provided on the side of the storage groove close to the camera module, and the end of the connecting plate away from the reflector is rotatably connected to a push plate, and the driving mechanism drives the push plate to move back and forth along the storage groove.

[0012] As a further improvement of the present application, the driving mechanism includes a driving motor, a screw installed at the output end of the driving motor, and a screw sleeve threadedly connected to the screw. The outer ring of the screw sleeve is equipped with multiple driving rods matching the push plate, and an electromagnet is installed at the end of the driving rod. Ferromagnetic metal blocks are embedded in the corresponding positions of the push plate and the electromagnet, and the driving motor and the electromagnet are electrically connected to the processing module.

[0013] As a further improvement of the present application, a distance sensor corresponding to the driving rod is installed on the shooting head, and the distance sensor is electrically connected to the processing module.

[0014] As another improvement of the present application, a mirror hot air outlet is provided on the end of each storage slot close to the camera module, the mirror hot air outlet is connected to the lens hot air outlet, and an electromagnetic valve is installed at the connection between the lens hot air outlet and the mirror hot air outlet. An anti-fog module is also provided on the shooting intelligent controller, and the anti-fog module is respectively electrically connected to the processing module and the electromagnetic valve, and the input end of the lens hot air outlet is connected to an input pipe for conveying hot air.

[0015] As another improved supplement of the present application, a heating module and a temperature sensor are respectively installed on the upper and lower sides of each storage slot, and the heating module and the temperature sensor are electrically connected to the anti-fog module.

[0016] As another improved supplement of the present application, a cleaning channel is provided on the shooting head, the input end of the cleaning channel is externally connected to a cleaning liquid supply device, multiple output ends of the cleaning channel are connected to corresponding storage slots, and each output end of the cleaning channel is installed with an electromagnetic valve 2, which is electrically connected to the processing module.

[0017] As another improvement of the present application, four reflectors are provided, and the four reflectors are respectively located on the opposite surfaces in the horizontal direction and the opposite surfaces in the vertical direction of the end portion of the shooting head.

[0018] To summarize, by setting up the shooting intelligent controller, the tooth position you want to shoot is input through the touch screen, and the command module sends a control signal to the processing module after receiving the control signal. The processing module matches the corresponding tooth position according to the shooting information of the camera module, and issues a quick positioning prompt after the matching is completed, which is convenient for auxiliary positioning operations and improves the convenience of shooting; the fill light is controlled to emit a specified brightness to meet the needs of oral shooting; when the reflector is needed to assist in shooting the arrangement and occlusion of the upper and lower teeth, the reflector is automatically controlled to extend and deflect to move it to the required position to meet various shooting needs, and the camera module and the reflector are automatically defogged during the shooting process to prevent them from fogging, thereby achieving better shooting effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the first and second implementation modes of the present application;

[0020] Figure 2 For this application Figure 1 The enlarged schematic diagram at A in the middle;

[0021] Figure 3 This is a schematic diagram of the structure of the reflector when it is extended according to the first and second embodiments of the present application;

[0022] Figure 4 This is a schematic diagram of the structure of the reflector when it is deflected according to the first and second embodiments of the present application;

[0023] Figure 5 This is a control principle block diagram of the shooting intelligent controller of the first embodiment of the present application;

[0024] Figure 6 A cross-sectional view of a camera head according to the first and second embodiments of the present application;

[0025] Figure 7 This is a cross-sectional view of the shooting head when the reflector is deflected according to the second embodiment of the present application;

[0026] Figure 8 This is a schematic diagram of the positions of the temperature sensor and the heating module of the second embodiment and the second embodiment of the present application;

[0027] Fig. 9 This is a control principle block diagram of the shooting intelligent controller of the second embodiment of the present application.

[0028] Description of the numbers in the figure:

[0029] 1. Camera head; 2. Camera module; 3. Horizontal bar; 4. Automatic telescopic component; 5. Vertical pole; 6. Hand-held pole; 7. Automatic rotation component; 8. Control button; 9. Fill light; 10. Lens hot air outlet; 11. Reflector; 12. Temperature sensor; 13. Storage slot; 14. Mirror hot air outlet; 15. Light sensor; 16. Input tube; 17. Solenoid valve 1; 18. Cleaning channel; 19. Solenoid valve 2; 20. Connecting plate; 21. Push plate; 22. Screw; 23. Drive motor; 24. Screw sleeve; 25. Drive rod; 26. Electromagnet; 27. Distance sensor; 28. Heating module. DETAILED DESCRIPTION

[0030] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0031] The first implementation method:

[0032] Figure 1-Figure 7 The illustrated embodiment shows an easy-to-clean handheld intraoral camera, which comprises a vertical pole 5, a shooting head 1 and a shooting intelligent controller; an automatic rotating assembly 7 is installed in the middle of the vertical pole 5 to drive the top of the vertical pole 5 to move around its axis, a cross bar 3 is installed on the top of the vertical pole 5, and an automatic telescopic assembly 4 is installed in the middle of the cross bar 3 to drive the cross bar 3 to move along its axial direction, a hand-held pole 6 is fixed to the bottom of the vertical pole 5, and a control button 8 is installed on the hand-held pole 6. The cross bar 3 is telescoped and extended by the automatic telescopic assembly 4, so as to facilitate the control of the camera module 2 to extend into the oral cavity for shooting, and the cross bar 3 is deflected by the automatic rotating assembly 7, and the camera module 2 at the front end of the cross bar 3 is driven to deflect, so as to adjust the shooting angle and orientation. When the hand-held pole 6 is held by hand, the control button 8 can be controlled by the finger to adjust the operation of the automatic rotating assembly 7 and the automatic telescopic assembly 4, so as to flexibly control the shooting angle and shooting distance of the camera module 2, and the operation is very convenient.

[0033] It is worth mentioning that the shooting head 1 is installed at the front end of the cross bar 3, and the front end of the shooting head 1 is respectively installed with a camera module 2 and a fill light 9 arranged on the outer circle of the camera module 2. The shooting head 1 is provided with a lens hot air outlet 10 facing the camera module 2, and a light sensor 15 is installed at the end of the shooting head 1. The fill light 9 plays a fill light role, and detects the light intensity near the camera module 2 through the light sensor 15. The light intensity is flexibly adjusted according to the use requirements to meet the brightness requirements of oral photography. A plurality of reflectors 11 distributed along its circumference are plugged into the end of the shooting head 1, and a driving mechanism corresponding to the reflector 11 is installed on the shooting head 1, which is used to control the corresponding reflector 11 from the end of the shooting head 1 The camera module 2 is extended by controlling the forward and backward movement and deflection of the shooting head 1, thereby controlling the forward and backward movement and deflection of the camera module 2, so as to flexibly adjust the shooting angle and shooting distance of the camera module 2. The hot air discharged from the hot air outlet 10 of the lens defogs the camera module 2, so that the camera module 2 is not easy to fog during the process of shooting the oral cavity. When the reflector 11 is needed to adjust the shooting part, the driving mechanism can be controlled to work, so as to control the corresponding reflector 11 to extend, and adjust the inclination angle of the reflector 11 to meet the shooting requirements. In addition, the hot air discharged from the hot air outlet 10 of the lens can also heat and defog the extended reflector 11, so that the reflector 11 is not easy to fog during use, which is convenient for shooting.

[0034] In addition, a shooting intelligent controller is installed in the vertical pole 5, and a command module, a processing module and a shooting positioning module are arranged on the shooting intelligent controller. The command module is electrically connected to the processing module, the control button 8 and the touch screen respectively. The touch screen is installed on the vertical pole 5. The processing module is electrically connected to the shooting positioning module, the driving mechanism, the camera module 2, the fill light 9 and the light sensor 15 respectively. The shooting positioning module is electrically connected to the automatic telescopic component 4 and the automatic rotation component 7 respectively. When taking oral shots, the shooting is performed by holding the handheld pole 6, and the control button 8 is controlled by pressing, rotating, etc., and the touch operation can also be performed through the touch screen to send corresponding control signals to the command module. The command module sends a control signal to the processing module, and controls the automatic telescopic component 4 and the automatic rotation component 7 to work through the shooting positioning module, so that it controls the shooting distance and shooting angle of the camera module 2. The image taken by the camera module 2 can be displayed on the touch screen through the processing module and the command module; the desired image can be input through the touch screen After receiving the control signal, the command module sends a control signal to the processing module. The processing module matches the corresponding tooth position according to the shooting information of the camera module 2, and issues a prompt for quick positioning after the matching is completed, which is convenient for auxiliary positioning operations and improves the convenience of shooting. When shooting, the light sensor 15 feeds back the light intensity to the processing module, and the processing module controls the fill light 9 to work according to the current light intensity, so that it emits a specified brightness, thereby meeting the oral shooting requirements. When the reflector 11 is needed to assist in shooting the arrangement and occlusion of the upper and lower teeth, a control signal can be sent to the command module through the control button 8 or the touch display screen, and the driving mechanism can be controlled by the processing module to control the extension and deflection of the reflector 11 to move it to the required position to meet various shooting requirements. By setting a reflector 11 that is easy to store and extend, it can be carried to the cleaning room together with the shooting head 1 for cleaning, and by controlling multiple reflectors 11 to be extended at the same time and then cleaned, the convenience of cleaning is improved.

[0035] In this implementation, see Figure 6 and Figure 7 A storage groove 13 matching the reflector 11 is provided on the shooting head 1, and the end of the reflector 11 away from the camera module 2 is rotatably connected to a connecting plate 20 through a rotating shaft. An arc groove matching the rotating shaft is provided on the side of the storage groove 13 close to the camera module 2. When the rotating shaft on the reflector 11 moves along the storage groove 13 to the arc groove, the rotating shaft on the reflector 11 slides along the arc groove, and the end of the connecting plate 20 away from the reflector 11 is rotatably connected to a push plate 21. The push plate 21 is controlled by a driving mechanism to reciprocate along the storage groove 13, thereby controlling the reflector 11 to reciprocate along the storage groove 13, and controlling the reflector 11 to extend or retract. The push plate 21 pushes the connecting plate 20 and the reflector 11 to move forward and extend, such as Figure 6As shown, when the shaft on the reflector 11 moves to the arc groove, the shaft will slide along the arc groove, causing the reflector 11 to deflect, as shown in FIG. Figure 7 As shown, the deflection angle of the reflector 11 is adjusted by controlling the push plate 21 to move forward a corresponding distance.

[0036] Also, see Figure 6 and Figure 7 The driving mechanism includes a driving motor 23, a screw 22 installed at the output end of the driving motor 23, and a screw sleeve 24 threadedly connected to the screw 22. The outer ring of the screw sleeve 24 is equipped with a plurality of driving rods 25 matching the push plate 21, and an electromagnet 26 is installed at the end of the driving rod 25. A ferromagnetic metal block is embedded in the corresponding position of the push plate 21 and the electromagnet 26. The driving motor 23 and the electromagnet 26 are both electrically connected to the processing module. When it is necessary to control the corresponding reflector 11 to extend and deflect to a specified angle, the instruction module sends a control signal to the processing module. The processing module is used to control the driving motor 23 to work, and the driving motor 23 drives the screw 22 to rotate, thereby controlling the movement of the screw sleeve 24 and the driving rod 25. At the same time, the processing module controls the electromagnet 26 on the driving rod 25 corresponding to the reflector 11 to work, and the electromagnet 26 generates magnetism and has a magnetic attraction effect on the push plate 21. Therefore, during the movement of the driving rod 25, the corresponding push plate 21 is driven to move, thereby pushing the reflector 11 to extend, and by controlling the moving distance of the driving rod 25, the extended length and deflection angle of the reflector 11 are synchronously controlled.

[0037] In addition, a distance sensor 27 corresponding to the driving rod 25 is installed on the shooting head 1. The distance sensor 27 is electrically connected to the processing module. The position of the driving rod 25 is detected by the distance sensor 27, and the detected distance data is sent to the processing module. The processing module determines the deflection angle of the reflector 11 according to the position of the driving rod 25, controls the operation of the driving motor 23, and can accurately adjust the deflection angle of the corresponding reflector 11 to improve the imaging quality of the intraoral image.

[0038] Preferably, see Figure 1 There are four reflectors 11, which are respectively located at the opposite surfaces in the horizontal direction and the opposite surfaces in the vertical direction of the end of the shooting head 1. The corresponding reflectors 11 can be controlled to extend according to needs, so as to better shoot the arrangement and occlusion of the upper and lower teeth in the patient's mouth and meet the needs of different shooting angles.

[0039] The second implementation method:

[0040] Figure 6-Figure 9The illustrated embodiment is a handheld intraoral photography mirror that is easy to clean. Different from the first embodiment, a mirror hot air outlet 14 is provided on the end of each storage slot 13 near the side of the camera module 2. The mirror hot air outlet 14 is connected to the lens hot air outlet 10. A solenoid valve 17 is installed at the connection between the lens hot air outlet 10 and the mirror hot air outlet 14. An anti-fog module is also provided on the shooting intelligent controller. The anti-fog module is electrically connected to the processing module and the solenoid valve 17 respectively. An input end of the lens hot air outlet 10 is connected to an input pipe 16 for conveying hot air. When the patient's oral cavity is photographed through the camera module 2, hot air enters through the input pipe 16 and is discharged through the lens hot air outlet 10 to defog the camera module 2. When the reflector 11 needs to be extended, the processing module controls the drive motor 23 to work and sends a defog signal to the defog module. The defog module controls the solenoid valve 17 to open. At this time, The hot air enters the hot air outlet 14 of the mirror surface to heat the reflector 11. When the reflector 11 is gradually extended, the hot air gradually heats the extended reflector 11, so that it is not easy to fog when inserted into the mouth, and a good defogging effect is achieved. A heating module 28 and a temperature sensor 12 are respectively installed on the upper and lower sides of each storage slot 13. The heating module 28 and the temperature sensor 12 are both electrically connected to the anti-fog module. When the patient's mouth is photographed by the camera module 2, the processing module sends a preheating signal to the anti-fog module. The anti-fog module controls the heating module 28 to work and preheats the reflector 11, so that the reflector 11 has a certain temperature when it is extended, so that it is not easy to fog. The temperature of the reflector 11 is detected by the temperature sensor 12 and fed back to the fogging module. When the temperature sensor 12 detects that the temperature reaches the temperature threshold, the heating module 28 is controlled to stop working.

[0041] In this implementation, see Figure 6 A cleaning channel 18 is provided on the shooting head 1, and a cleaning liquid supply device is externally connected to the input end of the cleaning channel 18. Multiple output ends of the cleaning channel 18 are connected to the corresponding storage grooves 13. A solenoid valve 2 19 is installed at each output end of the cleaning channel 18, and the solenoid valve 2 19 is electrically connected to the processing module. The cleaning liquid supplied by the cleaning liquid supply device is input into the cleaning channel 18 and is discharged through the solenoid valve 2 19. The cleaning liquid can be inserted into the device along the input pipe 16 through a pipeline, which is convenient for the arrangement of lines and pipelines. When the reflector 11 is extended or retracted, in order to ensure that the reflector 11 in contact with the oral cavity is clean and hygienic, the processing module controls the solenoid valve 2 19 corresponding to the reflector 11 to open, and the cleaning liquid enters the storage groove 13 and is discharged through the mirror hot air outlet 14, so as to clean the surface of the reflector 11, clean the extended and retracted reflector 11, and ensure the cleanliness and sanitation of the equipment.

[0042] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. An easy-to-clean handheld intraoral camera, characterized in that: include: A vertical pole (5), wherein an automatic rotating assembly (7) is installed in the middle of the vertical pole (5) for driving the top of the vertical pole (5) to move around its axis, a cross bar (3) is installed in the top of the vertical pole (5), an automatic telescopic assembly (4) is installed in the middle of the cross bar (3) for driving the cross bar (3) to move along its axial direction, and a hand-held rod (6) is fixed at the bottom of the vertical pole (5), and a control button (8) is installed on the hand-held rod (6); A shooting head (1), the shooting head (1) is mounted on the front end of a cross bar (3), a camera module (2) and a fill light (9) arranged on the outer ring of the camera module (2) are respectively mounted on the front end of the shooting head (1), a lens hot air outlet (10) facing the camera module (2) is opened on the shooting head (1), a light sensor (15) is mounted on the end of the shooting head (1), a plurality of reflectors (11) distributed along the circumference of the shooting head (1) are plugged into the end of the shooting head (1), and a driving mechanism corresponding to the reflector (11) is mounted on the shooting head (1) for controlling the corresponding reflector (11) to extend from the end of the shooting head (1); A shooting intelligent controller, the shooting intelligent controller is installed in a vertical pole (5), and is provided with a command module, a processing module and a shooting positioning module, the command module is electrically connected to the processing module, the control button (8) and the touch display screen respectively, the touch display screen is installed on the vertical pole (5), the processing module is electrically connected to the shooting positioning module, the driving mechanism, the camera module (2), the fill light (9) and the light sensor (15) respectively, and the shooting positioning module is electrically connected to the automatic telescopic component (4) and the automatic rotating component (7) respectively.

2. The easy-to-clean handheld intraoral camera according to claim 1, characterized in that: The shooting head (1) is provided with a storage groove (13) matching with the reflector (11); the end of the reflector (11) away from the camera module (2) is rotatably connected to a connecting plate (20) via a rotating shaft; the side of the storage groove (13) close to the camera module (2) is provided with an arc groove matching with the rotating shaft; the end of the connecting plate (20) away from the reflector (11) is rotatably connected to a push plate (21).

3. The easy-to-clean handheld intraoral camera according to claim 2, characterized in that: The driving mechanism comprises a driving motor (23), a screw (22) installed at the output end of the driving motor (23), and a screw sleeve (24) threadedly connected to the screw (22); a plurality of driving rods (25) matching the push plate (21) are installed on the outer ring of the screw sleeve (24); an electromagnet (26) is installed at the end of the driving rod (25); a ferromagnetic metal block is embedded in the corresponding position of the push plate (21) and the electromagnet (26); and the driving motor (23) and the electromagnet (26) are both electrically connected to the processing module.

4. The easy-to-clean handheld intraoral camera according to claim 3, characterized in that: A distance sensor (27) corresponding to the driving rod (25) is installed on the shooting head (1), and the distance sensor (27) is electrically connected to the processing module.

5. The easy-to-clean handheld intraoral camera according to claim 2, characterized in that: A mirror hot air outlet (14) is provided at the end of each storage slot (13) near the side of the camera module (2), and the mirror hot air outlet (14) is connected to the lens hot air outlet (10). A solenoid valve (17) is installed at the connection between the lens hot air outlet (10) and the mirror hot air outlet (14). An anti-fog module is also provided on the shooting intelligent controller, and the anti-fog module is electrically connected to the processing module and the solenoid valve (17) respectively. The input end of the lens hot air outlet (10) is connected to an input pipe (16) for conveying hot air.

6. The easy-to-clean handheld intraoral camera according to claim 5, characterized in that: A heating module (28) and a temperature sensor (12) are respectively installed on the upper and lower sides of each storage slot (13), and the heating module (28) and the temperature sensor (12) are both electrically connected to the anti-fog module.

7. The easy-to-clean handheld intraoral camera according to claim 6, characterized in that: The shooting head (1) is provided with a cleaning channel (18), the input end of the cleaning channel (18) is externally connected to a cleaning liquid supply device, a plurality of output ends of the cleaning channel (18) are connected to corresponding storage slots (13), and each output end of the cleaning channel (18) is installed with a second solenoid valve (19), and the second solenoid valve (19) is electrically connected to a processing module.

8. The easy-to-clean handheld intraoral camera according to claim 1, characterized in that: Four reflectors (11) are provided, and the four reflectors (11) are respectively located on the opposite surfaces in the horizontal direction and the opposite surfaces in the vertical direction of the end of the shooting head (1).

Images