Digital observation instrument for oral cavity

Abstract

The utility model relates to an oral cavity digital observer which comprises a first shell, a second shell, a camera shooting assembly, a light source and a light-transmitting protective sleeve. The first shell slides in the axial direction of the second shell and is in sliding connection with the second shell. The camera shooting assembly is arranged in the first shell and comprises a camera, and the camera is arranged at the end, away from the second shell, of the first shell; the light source is arranged on the periphery of the end part, corresponding to the camera, of the first shell; the light-transmitting protective sleeve is arranged outside the first shell in a sleeving manner and is detachably connected with the second shell; at least one storage groove is formed in the peripheral face, away from the connecting position, of the light-transmitting protective sleeve. Through the arrangement that the light-transmitting protective sleeve is detachably connected with the second shell, on the premise that sanitation is guaranteed, the cleaning time is saved, and the process is shortened; through the arrangement of the storage groove, candies can be placed on the storage groove, so that the attention of an infant is focused on the candies, a doctor can smoothly observe the oral cavity of the infant, and the risk is reduced.

Description

Technical Field

[0001] The present disclosure relates to the technical field of oral medical equipment, and in particular to an oral digital viewer. Background Art

[0002] Existing patent CN215914504U discloses a new type of oral observation instrument, including an outer shell, a connecting groove provided inside the outer shell, a connecting rod provided inside the connecting groove, a sliding mechanism provided at one end of the connecting rod, and the connecting rod is movably connected to the outer shell through the sliding mechanism, one end of the connecting rod passes through the top of the outer shell, and a camera is fixedly provided at one end of the connecting rod, a transparent protective cover is provided outside the camera, an electrical cavity is provided inside the outer shell, and a PCB circuit board, a Bluetooth connection module, a signal transmission module and a PLC controller are provided inside the electrical cavity. This new type of oral observation instrument has a simple structure, is easy to carry, and is easy to adjust the position of the camera. It can observe deep into the oral cavity to improve the observation effect, can be connected to external devices, and transmit the observation image to the display device via Bluetooth connection, so that the doctor can have a clearer understanding of the oral condition.

[0003] Although the above patent enables the oral viewing instrument to observe the deep part of the oral cavity through the sliding mechanism, the above patent solution still has the following defects:

[0004] First, although the above solution is designed with a transparent protective cover, the transparent protective cover is fixedly connected to the outer shell of the oral observation instrument. After observing the oral cavity of one patient, it needs to be cleaned or put on a disposable protective cover before use before the oral cavity of the next patient can be observed, which is a cumbersome process.

[0005] Second, the above solution is only applicable to adults. Since infants and young children are usually active, there are certain risks in directly placing the camera of the oral observation device into the infant's mouth when oral observation of the infant is required. In addition, the existing technology has not been adjusted accordingly for infants and young children. For example, the existing technology has not set the adjustable length range of the camera in the oral observation device according to the depth of the infant's mouth, making the existing technology not well adapted to the oral observation of infants and young children. Utility Model Content

[0006] In order to solve the problems existing in the above-mentioned prior art, the present disclosure aims to provide an oral digital viewer to solve the technical problem that the prior art cannot be well adapted to the oral observation of infants and young children.

[0007] The oral digital viewer disclosed in the present invention comprises a first housing, a second housing, a camera assembly, a light source and a light-transmitting protective cover;

[0008] The first shell slides along the axial direction of the second shell and is slidably connected to the second shell;

[0009] The camera assembly is disposed in the first housing and includes a camera, and the camera is disposed at an end of the first housing away from the second housing;

[0010] The light source is arranged on the periphery of the end portion of the first housing corresponding to the camera;

[0011] The light-transmitting protective cover is arranged outside the first shell and is detachably connected to the second shell; at least one storage groove is provided on the outer peripheral surface of the light-transmitting protective cover away from the connection point.

[0012] Preferably, the oral digital observer further comprises a sliding mechanism, wherein the first shell at least partially extends into the interior of the second shell, and the portion of the first shell extending into the second shell is an insertion portion, which is slidingly connected to the second shell through the sliding mechanism; the sliding mechanism comprises a matching rack and a tooth block, the tooth block being arranged on the outer peripheral surface of the insertion portion, the rack being arranged on the inner side surface of the second shell corresponding to the tooth block, extending along the axial direction of the second shell, and the length of the rack being adapted to the length of the insertion portion.

[0013] Preferably, the oral digital observer further comprises a limit assembly, the limit assembly comprising a receiving groove, a limit structure, a pressing key cap, a limit hole and a reset member, the receiving groove being arranged on the protruding portion, and the extension direction of the receiving groove being adapted to the extension direction of the rack; the limit structure comprising a column and a limit block, the column and the limit block being connected, the column being arranged in the receiving groove, and the column at least partially exposed outside the second shell, the end of the exposed part being connected to the pressing key cap, the reset member being sleeved outside the column, and one end being connected to the pressing key cap; the second shell being in contact with the column A through hole is opened at the corresponding position for exposing the column, and a support structure is formed on the inner side of the through hole. The diameter of the support structure is larger than the diameter of the column and smaller than the diameter of the reset member, and the end of the reset member away from the pressing keycap is abutted or connected to the support structure; there are multiple limiting holes, and the multiple limiting holes are symmetrically arranged on both sides of the extension direction of the accommodating groove; the limiting block is adapted to the limiting hole; when the limiting block is engaged with the limiting hole, it is the initial position, and when the block is separated from the limiting hole, it is the pressing position, and the reset member is configured to: make the limiting block have a movement tendency from the pressing position to the initial position.

[0014] Preferably, the light-transmitting protective cover includes a mouth and a connecting part, the storage slot is arranged on the outer periphery of the mouth, a buckle is provided on the connecting part, and a slot adapted to the buckle is provided on the outer periphery of the second shell at a position corresponding to the buckle, and the light-transmitting protective cover is detachably connected to the second shell through the buckle and the slot.

[0015] Preferably, the oral digital observer further comprises a controller and a circuit board, both of which are arranged in the second shell, the controller is electrically connected to the circuit board, the camera is electrically connected to the circuit board, the controller comprises at least two control buttons, and the outer periphery of the second shell is provided with through holes adapted to the control buttons at positions corresponding to the control buttons.

[0016] Preferably, the oral digital observer further comprises a power supply, which is arranged in the second shell and connected to the circuit board. The circuit board is provided with a charging port electrically connected to the power supply, and the second shell is provided with a charging hole adapted to the charging port at a position corresponding to the charging port; the circuit board is also provided with a storage card slot, which is electrically connected to the circuit board, and the second shell is provided with a storage card hole adapted to the storage card slot at a position corresponding to the storage card slot.

[0017] Preferably, the camera assembly also includes a light sensor and a temperature sensor, and the light sensor and the temperature sensor are both arranged in the first shell, the light sensor and the temperature sensor are both electrically connected to the circuit board, and the light sensor and the temperature sensor are both at least partially exposed outside the first shell.

[0018] Preferably, the oral digital observer further comprises a cover, the charging hole and the storage card hole are both formed on the outer surface of the end of the second shell away from the light-transmitting protective cover, the cover is adapted to the end of the second shell away from the light-transmitting protective cover, and is detachably connected to the second shell.

[0019] The advantages of the oral digital viewer disclosed in the present invention are:

[0020] First, by detachably connecting the light-transmitting protective cover to the second housing, the light-transmitting protective cover can be directly discarded and replaced with a new one after an oral observation. This reduces the cleaning requirements for the oral viewing device while ensuring hygiene, saves cleaning time, and shortens the process.

[0021] Second, by setting the storage slot, candies can be placed on the storage slot, so that the infant's attention is focused on the candies. At the same time, because the storage slot is set on the light-transmitting protective cover, the light-transmitting protective cover is set outside the first shell, and the camera in the camera assembly is set inside the first shell, that is, when observing the infant's mouth, the first shell and the light-transmitting protective cover set outside the first shell will be inserted into the infant's mouth, and the candies will directly enter the infant's mouth, so that the doctor can smoothly observe the infant's mouth and reduce risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic diagram of an oral digital viewer disclosed in the present invention;

[0023] Figure 2 is an exploded view of the oral digital viewer;

[0024] Figure 3 is a schematic diagram of the sliding mechanism;

[0025] Figure 4 Schematic diagram of the limit assembly.

[0026] Explanation of the accompanying drawings: 1-first shell, 2-second shell, 3-camera assembly, 31-camera, 32-light sensor, 33-temperature sensor, 4-light source, 5-transparent protective cover, 51-storage slot, 6-sliding mechanism, 61-rack, 62-tooth block, 7-limiting assembly, 71-accommodating slot, 72-limiting structure, 721-column, 722-limiting block, 73-press keycap, 74-limiting hole, 75-reset member, 8-controller, 9-circuit board, 10-power supply, 11-cover. DETAILED DESCRIPTION

[0027] like Figure 1 、 Figure 2 As shown, an oral digital viewer disclosed in the present invention includes a first shell 1, a second shell 2, a camera assembly 3, a light source 4 and a light-transmitting protective cover 5; Figure 1 The light-transmitting protective cover 5 is not shown. Figure 2 Shown in exploded view.

[0028] The first shell 1 slides along the axial direction of the second shell 2 and is slidably connected to the second shell 2;

[0029] The camera assembly 3 is disposed in the first housing 1 and includes a camera 31 . The camera 31 is disposed at an end of the first housing 1 away from the second housing 2 .

[0030] The light source 4 is arranged on the periphery of the end portion of the first housing 1 corresponding to the camera 31;

[0031] The light-transmitting protective cover 5 is sleeved outside the first shell 1 and is detachably connected to the second shell 2 . At least one storage groove 51 is provided on the outer peripheral surface of the light-transmitting protective cover 5 away from the connection.

[0032] In one embodiment of the present disclosure, the first housing 1 can be integrally formed or assembled from multiple parts; preferably, a detachably connected upper housing and lower housing are selected, the upper housing is formed with a plurality of threaded through holes, and the lower housing is formed with threaded blind holes at positions corresponding to the threaded through holes, and the upper housing and the lower housing are locked by screws;

[0033] Similarly, the second shell 2 can be integrally formed or assembled from multiple parts; preferably, a detachably connected left shell and right shell are selected. To ensure simple assembly, the threaded through hole opened in the left shell is consistent in size with the threaded through hole on the upper shell, and the threaded blind hole opened in the right shell is consistent in size with the threaded blind hole on the lower shell; no special correspondence is required during disassembly and assembly, which speeds up disassembly and assembly.

[0034] More specifically, the size of the light-transmitting protective cover 5 can be selected according to the oral cavity of the subject to be tested. In one embodiment of the present disclosure, the light-transmitting protective cover 5 is divided into three different sizes according to infants and young children aged 0 to 6 years old:

[0035] 1. 0-2 years old: 58.5mm;

[0036] 2. 2-4 years old: 62.5mm;

[0037] 3, 4 to 6 years old, 66.5mm.

[0038] The above size setting is suitable for infants and young children aged 0 to 6 years old. The light-transmitting protective cover 5 can also be customized according to needs to adapt to more people. The light-transmitting protective cover 5 can be selected according to the age of the person to be tested;

[0039] Since the light-transmitting protective cover 5 is detachably connected to the second shell 2, after an oral observation, the light-transmitting protective cover 5 can be directly discarded and a new light-transmitting protective cover 5 can be installed. Under the premise of ensuring hygiene, the cleaning requirements for the oral observation instrument can be reduced, the cleaning time can be saved, and the process can be shortened.

[0040] More specifically, the light-transmitting protective cover 5 is further provided with a storage slot 51, in which candies can be placed, so that the infant's attention is focused on the candies. At the same time, because the storage slot 51 is provided on the light-transmitting protective cover 5, the light-transmitting protective cover 5 is mounted outside the first shell 1, and the camera 31 in the camera assembly 3 is arranged inside the first shell 1, that is, when observing the infant's mouth, the first shell 1 and the light-transmitting protective cover 5 mounted outside the first shell 1 will be inserted into the infant's mouth, and the candies will directly enter the infant's mouth, allowing the doctor to smoothly observe the infant's mouth, reducing risks and preventing the infant from accidentally injuring the infant with the oral observation instrument due to the infant's movement.

[0041] In another embodiment of the present disclosure, a light-transmitting shell (not shown in the figure) is further provided on the periphery of the light source 4, and the light-transmitting shell is connected to the first shell 1, preferably by bonding; the light-transmitting shell protects the light source 4 while ensuring that the light from the light source 4 can be irradiated normally. Preferably, the light source 4 is an LED lamp, and the light-transmitting shell is a transparent plastic shell.

[0042] Further, such as Figure 3 As shown, a sliding connection is achieved between the first shell 1 and the second shell 2 through a sliding mechanism 6, and the first shell 1 at least partially extends into the interior of the second shell 2. The portion of the first shell 1 extending into the second shell 2 is the insertion portion, which is slidingly connected to the second shell 2 through the sliding mechanism 6; illustratively, the sliding mechanism 6 includes a matching rack 61 and a tooth block 62, the tooth block 62 is arranged on the outer peripheral surface of the insertion portion, and the rack 61 is arranged on the inner side surface of the second shell 2 corresponding to the tooth block 62, extending along the axial direction of the second shell 2, and the length of the rack 61 is adapted to the length of the insertion portion.

[0043] Specifically, the first shell 1 and the second shell 2 slide relative to each other, and the connection method of the first shell 1 and the second shell 2 can be that the first shell 1 and the second shell 2 are connected only by the sliding mechanism 6, and there is no overlapping part; or there is an overlapping part. In order to reduce the overall volume of the oral observation instrument, the latter is preferred, that is, there is an overlapping part between the first shell 1 and the second shell 2, and the first shell 1 at least partially extends into the interior of the second shell 2, and the extending part is the extending part.

[0044] The sliding mechanism 6 includes a matching rack 61 and tooth block 62. The rack 61 can be located on the insertion portion or inside the second housing 2. Similarly, the tooth block 62 can be located inside the second housing 2 or on the insertion portion. In one embodiment of the present disclosure, the tooth block 62 is located on the outer circumference of the insertion portion, and the rack 61 is located on the inner side surface of the second housing 2 corresponding to the tooth block 62. It extends axially along the second housing 2, and the length of the rack 61 is adapted to the length of the insertion portion.

[0045] The cooperation between the rack 61 and the tooth block 62 can maintain the engagement after sliding, thereby limiting the first shell 1 and the second shell 2 to a certain extent, thereby preventing the first shell 1 and the second shell 2 from being unable to be fixed relative to each other.

[0046] In other optional embodiments, the sliding mechanism 6 can be a damping sliding mechanism 6, the outer peripheral surface of the protruding portion is formed with a ridge, and the inner side surface of the second shell 2 is coated with a damping coating at a position corresponding to the ridge. The damping sliding mechanism 6 can make the sliding smoother.

[0047] Further, such as Figure 4 As shown, in order to ensure that the first shell 1 and the second shell 2 are more stable after adjusting the relative positions, an oral digital observer disclosed in the present invention also includes a limit assembly 7, which includes a receiving groove 71, a limit structure 72, a pressing key cap 73, a limit hole 74 and a reset member 75. The receiving groove 71 is arranged on the protruding portion, and the extension direction of the receiving groove 71 is adapted to the extension direction of the rack 61; the limit structure 72 includes a column 721 and a limit block 722, the column 721 and the limit block 722 are connected, the column 721 is arranged in the receiving groove 71, and the column 721 is at least partially exposed outside the second shell 2, the end of the exposed part is connected to the pressing key cap 73, the reset member 75 is sleeved outside the column 721, and The end is connected to the pressing keycap 73; the second shell 2 is provided with a through hole for exposing the column 721 at a position corresponding to the column 721, and a support structure is formed on the inside of the through hole. The diameter of the support structure is larger than the diameter of the column 721 and smaller than the diameter of the reset member 75, and the end of the reset member 75 away from the pressing keycap 73 abuts or is connected to the support structure; there are multiple limiting holes 74, and the multiple limiting holes 74 are symmetrically arranged on both sides of the extension direction of the accommodating groove 71; the limiting block 722 is adapted to the limiting hole 74; when the limiting block 722 is engaged with the limiting hole 74, it is the initial position, and when the block is separated from the limiting hole 74, it is the pressing position, and the reset member 75 is configured to: make the limiting block 722 have a movement tendency from the pressing position to the initial position.

[0048] Specifically, the accommodating groove 71 is arranged in the protruding portion, and the extension direction is adapted to the extension direction of the rack 61, that is, the accommodating groove 71 extends axially along the second shell 2, and the length of the accommodating groove 71 is adapted to the length of the protruding portion; the limiting structure 72 includes a column 721 and a limiting block 722, the column 721 and the limiting block 722 are connected, the column 721 is arranged in the accommodating groove 71, and the column 721 is at least partially exposed outside the second shell 2, and the end of the exposed part is connected to the pressing keycap 73; optionally, in order to leave room for movement, a rectangular through hole is opened at the bottom of the accommodating groove 71 at a position corresponding to the column 721, so as to leave more space for the column 721 to move downward; the second The shell 2 is provided with a through hole for exposing the column 721 at a position corresponding to the column 721, and a support structure is formed on the inner side of the through hole. The diameter of the support structure is larger than the diameter of the column 721 and smaller than the diameter of the reset member 75, and the end of the reset member 75 away from the pressing keycap 73 abuts or is connected to the support structure; there are multiple limiting holes 74, and the multiple limiting holes 74 are symmetrically arranged on both sides of the extension direction of the accommodating groove 71; the limiting block 722 is adapted to the limiting hole 74; when the limiting block 722 is engaged with the limiting hole 74, it is the initial position, and when the limiting block 722 is separated from the limiting hole 74, it is the pressing position, and the reset member 75 is configured to: make the limiting block 722 have a movement tendency from the pressing position to the initial position.

[0049] Exemplarily, there are a total of six limiting holes 74, which are divided into three groups, with two in each group. The two limiting holes 74 in the group are symmetrically arranged on both sides of the extension direction of the accommodating groove 71, and the spacing between the two adjacent groups of limiting holes 74 is adapted to the three sizes of the above-mentioned light-transmitting protective cover 5. When pressed downward, the limiting block 722 disengages from the limiting hole 74, pulling the first shell 1 away from the second shell 2, and the tooth block 62 inside the first shell 1 moves relative to the rack 61. Due to the reset member 75, the limiting block 722 has a movement tendency to return from the pressed position to the initial position. When it slides to the limiting block 722 and reaches the next group of limiting holes 74, the reset member 75 drives the limiting block 722 to reset, so that the limiting block 722 enters the limiting hole 74 and engages with the limiting hole 74, thereby achieving relative fixation between the first shell 1 and the second shell 2.

[0050] Furthermore, in order to adapt to the structural characteristics of the first shell 1 and the second shell 2 and minimize the overall volume of the oral digital observer described in the present disclosure, the light-transmitting protective cover 5 includes a mouth and a connecting part, the storage groove 51 is arranged on the outer periphery of the mouth, and a buckle is provided on the connecting part. The outer periphery of the second shell 2 is provided with a slot adapted to the buckle at a position corresponding to the buckle, and the light-transmitting protective cover 5 and the second shell 2 are detachably connected through the buckle and the slot.

[0051] Specifically, the light-transmitting protective cover 5 is in the shape of a pacifier, which can guide infants to a certain extent. In addition, the setting of the storage groove 51 and the placement of candies on the storage groove 51 can help infants to remain quiet and still and hold the light-transmitting protective cover 5 in their mouths, making it easier for doctors to observe the oral cavity.

[0052] Furthermore, the oral digital observer described in the present disclosure also includes a controller 8 and a circuit board 9, both of which are arranged in the second shell 2, the controller 8 is electrically connected to the circuit board 9, and the camera 31 is electrically connected to the circuit board 9. The controller 8 includes at least two control buttons, and the outer periphery of the second shell 2 is provided with through holes corresponding to the control buttons.

[0053] Specifically, the control buttons are preferably two control buttons, namely a power button and a shooting button; this design can simplify the operation steps and processes, making it easier for doctors and users to use the device, improving the convenience and efficiency of operation, and the smaller number of buttons also occupies less space, which can reduce the overall size of the oral viewing device;

[0054] The circuit board 9 is also electrically connected to a signal transmission module such as a wifi module and a bluetooth module, which can transmit the image data captured by the camera 31 to the smart terminal in real time for real-time observation.

[0055] Furthermore, the oral digital observer described in the present disclosure also includes a power supply 10, which is arranged in the second shell 2 and connected to the circuit board 9. The circuit board 9 is provided with a charging port electrically connected to the power supply 10, and the second shell 2 is provided with a charging hole adapted to the charging port at a position corresponding to the charging port; a storage card slot is also provided on the circuit board 9, and the storage card slot is electrically connected to the circuit board 9. The second shell 2 is provided with a storage card hole adapted to the storage card slot at a position corresponding to the storage card slot.

[0056] Specifically, the power source 10 is preferably a lithium battery, and a charging port electrically connected to the power source 10 is provided on the circuit board 9, which can charge the lithium battery, which is more environmentally friendly; and, through the setting of the storage card slot, when there is no smart terminal that can transmit data in real time, the data can be stored in the storage card inserted in the storage card slot, which is convenient for subsequent analysis of the captured data.

[0057] Furthermore, the camera assembly 3 also includes a light sensor 32 and a temperature sensor 33, both of which are arranged in the first shell 1, and are electrically connected to the circuit board 9, and both of which are at least partially exposed outside the first shell 1.

[0058] Specifically, a control module for controlling the brightness of the LED lamp is provided on the circuit board 9. Through the setting of the light sensor 32, the ambient light can be detected and a signal can be transmitted to the circuit board 9. The control module automatically adjusts the brightness of the LED lamp according to the transmitted signal; the temperature sensor 33 can detect the oral temperature during oral observation, and the doctor can determine whether there is a fever based on the temperature data.

[0059] Furthermore, the oral digital observer described in the present disclosure also includes a cover body 11, and the charging hole and the pure village card hole are both formed on the outer surface of the end of the second shell 2 away from the light-transmitting protective cover 5. The cover body 11 is adapted to the end of the second shell 2 away from the light-transmitting protective cover 5 and is detachably connected to the second shell 2.

[0060] Specifically, the charging port and the storage card slot are often exposed to the environment and are prone to dust accumulation, affecting usage. Through the setting of the cover 11, the cover 11 is adapted to the end of the second shell 2 away from the light-transmitting protective cover 5. The cover 11 is provided with a buckle, and the end of the second shell 2 away from the light-transmitting protective cover 5 is provided with a card slot adapted to the buckle. The buckle and the card slot are snapped together. When charging or inserting and removing the storage card is required, the cover 11 is removed. After charging or inserting and removing the storage card is completed, the cover 11 is installed with the second shell 2 to protect the charging port and the storage card slot.

[0061] In the description of the present disclosure, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present disclosure and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present disclosure.

[0062] Those skilled in the art can make various other corresponding changes and deformations based on the technical solutions and concepts described above, and all of these changes and deformations should fall within the scope of protection of the claims of this disclosure.

Claims

1. An oral digital viewer, characterized in that: It comprises a first housing (1), a second housing (2), a camera assembly (3), a light source (4) and a light-transmitting protective cover (5); The first shell (1) slides along the axial direction of the second shell (2) and is slidably connected to the second shell (2); The camera assembly (3) is arranged in the first housing (1) and comprises a camera (31), wherein the camera (31) is arranged at an end of the first housing (1) away from the second housing (2); The light source (4) is arranged on the outer periphery of the end portion of the first housing (1) corresponding to the camera (31); The light-transmitting protective cover (5) is sleeved outside the first shell (1) and is detachably connected to the second shell (2); At least one storage groove (51) is provided on the outer peripheral surface of the light-transmitting protective cover (5) away from the connection point.

2. The oral digital viewer according to claim 1, characterized in that: The invention also includes a sliding mechanism (6), wherein the first shell (1) at least partially extends into the interior of the second shell (2), and the portion of the first shell (1) extending into the second shell (2) is an extension portion, which is slidably connected to the second shell (2) through the sliding mechanism (6); the sliding mechanism (6) includes a matching rack (61) and a tooth block (62), the tooth block (62) is arranged on the outer peripheral surface of the extension portion, the rack (61) is arranged on the inner side surface of the second shell (2) corresponding to the tooth block (62), and extends along the axial direction of the second shell (2), and the length of the rack (61) is adapted to the length of the extension portion.

3. The oral digital viewer according to claim 2, characterized in that: The invention also includes a limiting assembly (7), wherein the limiting assembly (7) includes a receiving groove (71), a limiting structure (72), a pressing key cap (73), a limiting hole (74) and a reset member (75), wherein the receiving groove (71) is arranged on the extending portion, and the extending direction of the receiving groove (71) is adapted to the extending direction of the rack (61); the limiting structure (72) includes a column (721) and a limiting block (722), wherein the column (721) and the limiting block (722) are connected, and the column (721) is arranged in the receiving groove (71), and the column (721) is at least partially exposed outside the second shell (2), and the end of the exposed part is connected to the pressing key cap (73); the reset member (75) is sleeved outside the column (721), and one end is connected to the pressing key cap (73); the second shell (2) A through hole is provided at a position corresponding to the column (721) for exposing the column (721), and a support structure is formed inside the through hole. The diameter of the support structure is larger than the diameter of the column (721) and smaller than the diameter of the reset member (75), and the reset member (75) is in contact with or connected to the support structure at one end away from the pressing keycap (73); there are multiple limiting holes (74), and the multiple limiting holes (74) are symmetrically arranged on both sides of the extension direction of the accommodating groove (71); the limiting block (722) is adapted to the limiting hole (74); when the limiting block (722) is engaged with the limiting hole (74), it is in the initial position, and when the block is separated from the limiting hole (74), it is in the pressing position, and the reset member (75) is configured to enable the limiting block (722) to have a movement tendency from the pressing position to the initial position.

4. The oral digital viewer according to claim 1, characterized in that: The light-transmitting protective cover (5) comprises a mouth and a connecting part, the storage slot (51) is arranged on the periphery of the mouth, a buckle is provided on the connecting part, and a slot adapted to the buckle is provided on the periphery of the second shell (2) at a position corresponding to the buckle, and the light-transmitting protective cover (5) and the second shell (2) are detachably connected via the buckle and the slot.

5. The oral digital viewer according to claim 1, characterized in that: The invention also includes a controller (8) and a circuit board (9), wherein the controller (8) and the circuit board (9) are both arranged in the second shell (2), the controller (8) is electrically connected to the circuit board (9), and the camera (31) is electrically connected to the circuit board (9), the controller (8) includes at least two control buttons, and the outer periphery of the second shell (2) is provided with through holes adapted to the control buttons at positions corresponding to the control buttons.

6. The oral digital viewer according to claim 5, characterized in that: The invention also includes a power supply (10), which is arranged in the second shell (2) and connected to the circuit board (9). The circuit board (9) is provided with a charging port electrically connected to the power supply (10), and the second shell (2) is provided with a charging hole adapted to the charging port at a position corresponding to the charging port; the circuit board (9) is also provided with a storage card slot, which is electrically connected to the circuit board (9), and the second shell (2) is provided with a storage card hole adapted to the storage card slot at a position corresponding to the storage card slot.

7. The oral digital viewer according to claim 6, characterized in that: The camera assembly (3) further comprises a light sensor (32) and a temperature sensor (33), wherein the light sensor (32) and the temperature sensor (33) are both arranged in the first housing (1), the light sensor (32) and the temperature sensor (33) are both electrically connected to the circuit board (9), and the light sensor (32) and the temperature sensor (33) are both at least partially exposed outside the first housing (1).

8. The oral digital viewer according to claim 6, characterized in that: The cover (11) is further comprised, wherein the charging hole and the storage card hole are both formed on the outer surface of the end of the second shell (2) away from the light-transmitting protective cover (5); the cover (11) is adapted to the end of the second shell (2) away from the light-transmitting protective cover (5) and is detachably connected to the second shell (2).

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