阅读说明：本技术 一种便于口部张开的口腔科用口部撑开辅助装置 (Department of stomatology struts auxiliary device with oral cavity convenient to oral cavity is opened ) 是由 李粮江 于 2021-08-16 设计创作，主要内容包括：本发明涉及一种口部撑开装置,具体地说,涉及一种便于口部张开的口腔科用口部撑开辅助装置。其包括包括张开机构,所述张开机构至少包括上齿板和下齿板,升降机构,所述升降机构包括撑板,所述撑板为上下对称设置的两个,相对所述撑板之间铰接设置有两个支撑条,对称所述支撑条之间安装有连接杆、固定轴和传动杆,所述传动杆与所述固定轴呈螺纹连接,边推机构,所述边推机构包括呈开口向上的矩形固定箱,从动锥齿轮、主动锥齿轮、主动轴和传动丝杆,所述传动丝杆的表面螺纹连接有内活动板。本发明通过设置的升降机构与边推机构可使得对于口腔内部进行两次作用撑开,以便于医护人员进行口腔检测时的操作。(The invention relates to an oral opening device, in particular to an oral opening auxiliary device for stomatology department, which is convenient for opening the oral area. It includes opening mechanism, opening mechanism includes pinion rack and lower pinion rack at least, elevating system includes the fagging, the fagging is two that the longitudinal symmetry set up, and is relative the articulated two support bars that are provided with between the fagging, the symmetry install connecting rod, fixed axle and transfer line between the support bar, the transfer line with the fixed axle is threaded connection, and the limit pushes away the mechanism, the limit pushes away the mechanism including being the ascending rectangle fixed case of opening, driven bevel gear, initiative bevel gear, driving shaft and drive screw, the surperficial threaded connection of drive screw has interior fly leaf. The oral cavity detection device can be used for opening the interior of the oral cavity under the action of two times through the arranged lifting mechanism and the side pushing mechanism, so that medical workers can conveniently operate the oral cavity detection device during oral cavity detection.)

1. The utility model provides a department of stomatology struts auxiliary device convenient to mouth is open which characterized in that: comprising an opening mechanism (100), said opening mechanism (100) comprising at least:

the tooth-pressing mechanism comprises an upper toothed plate (110), wherein a lower toothed plate (120) is symmetrically arranged below the upper toothed plate (110), the upper toothed plate (110) and the lower toothed plate (120) are both in a semicircular ring shape with an opening facing one side, side clamping frames (113) are symmetrically connected to the side ends of the upper toothed plate (110) and the lower toothed plate (120), and the side clamping frames (113) are in an N shape with an opening facing one side;

elevating system (130), elevating system (130) includes fagging (131), fagging (131) are two that the longitudinal symmetry set up, relatively it is provided with two support bars (132) to articulate between fagging (131), four groups that support bar (132) set up for the symmetry, the symmetry install rotating member (133) between support bar (132), rotating member (133) includes connecting rod (1331), connecting rod (1331) are used for with adjacent articulated department swing joint between support bar (132), the surface of connecting rod (1331) all is provided with fixed axle (1332), the inside of fixed axle (1332) is provided with transfer line (1333), the both ends of transfer line (1333) are provided with external screw thread (1334) relatively, transfer line (1333) with fixed axle (1332) are threaded connection, one side end of transfer line (3) is equipped with rotating rod (1335), the rotating rod (1335) is L-shaped;

the side pushing mechanism (140) comprises a rectangular fixed box (141) with an upward opening, driven bevel gears (142) are symmetrically arranged inside the fixed box (141), the side ends of the driven bevel gears (142) are connected with driving bevel gears (143) in a meshing mode, a driving shaft (144) is arranged inside the driving bevel gears (143), transmission screw rods (1421) are arranged inside the driven bevel gears (142), an inner movable plate (145) is connected to the surface of each transmission screw rod (1421) in a threaded mode, a fixed bin (147) is arranged on the outer side of the fixed box (141), the fixed bin (147) is L-shaped, and the inner movable plate (145) is connected with the inner bottom of the fixed bin (147) in a sliding mode.

2. An oral distraction assist device for oral surgery according to claim 1, wherein: the inner ring gaskets (111) are arranged inside the upper toothed plate (110) and the lower toothed plate (120), and the inner ring gaskets (111) are used for collecting tartar for teeth in the oral cavity.

3. An oral distraction assist device for oral surgery according to claim 1, wherein: the inner parts of the upper toothed plate (110) and the lower toothed plate (120) are both provided with arc-shaped limiting plates (112), and one side end of each arc-shaped limiting plate (112) is provided with a limiting spring (1120).

4. An oral distraction assist device for oral surgery according to claim 1, wherein: a plurality of round mouths (121) are opened on the surface of the lower toothed plate (120), illuminating lamps (1210) are arranged inside the round mouths (121), and limiting columns (122) are arranged at the side ends of the round mouths (121).

5. An oral distraction assist device for oral surgery according to claim 1, wherein: the surface of one of the supporting plates (131) is provided with a plurality of groups of slow descending springs (1310).

6. An oral distraction assist device for oral surgery according to claim 1, wherein: a plurality of groups of clips (1320) are symmetrically arranged on the surface of the supporting plate (131), the clips (1320) are arc-shaped plates with openings towards one side, and the clips (1320) are used for movably hinging the supporting bar (132).

7. An oral distraction assist device for oral surgery according to claim 1, wherein: the side end of one of the transmission screw rods (1421) is provided with a rubber patch (1422), and one side end of the driving shaft (144) is provided with a turntable (1440).

8. An oral distraction assist device for oral surgery according to claim 1, wherein: the lower part of the opening mechanism (100) is provided with a lower jaw fixing device (200), the lower jaw fixing device (200) comprises an arc-shaped lower jaw patch plate (210) with an upward opening, and a cotton patch (2101) is arranged inside the lower jaw patch plate (210).

9. An oral distraction assist device for facilitating oral distraction according to claim 8, wherein: an L-shaped fixing rod (211) is arranged at the side end of the lower jaw plate (210), an L-shaped side expansion rod (2111) is arranged on the surface of the fixing rod (211), a side fixing ring (2112) is arranged on the surface of the side expansion rod (2111), one side end of the side expansion rod (2111) is fixedly mounted with the surface of the lower toothed plate (120), a bottom expansion rod (212) is arranged at the bottom of the lower jaw plate (210), and a bottom fixing ring (2120) is arranged on the surface of the bottom expansion rod (212).

10. An oral distraction assist device for facilitating oral distraction according to claim 9, wherein: bottom plate (213) are installed to the bottom of bottom telescopic link (212), four ends in the bottom of bottom plate (213) all are provided with universal wheel (2130), the inside of bottom plate (213) is provided with scope plate spare (220), scope plate spare (220) include inner chamber (221), the internally mounted of inner chamber (221) has lens (2210).

Technical Field

The invention relates to an oral opening device, in particular to an oral opening auxiliary device for stomatology department, which is convenient for opening the oral area.

Background

The mouth, is the initial part of the digestive tract. There are organs such as teeth and tongue in the oral cavity. The front wall of the oral cavity is lip, the side wall is cheek, the top is palate, the bottom of the oral cavity is mucous membrane and muscle. The oral cavity is divided into an oral cavity vestibule at the front outer side part and an inherent oral cavity at the back inner side part by the upper dental arch and the lower dental arch, and when the upper dental arch and the lower dental arch are occluded, the oral cavity vestibule is communicated with the inherent oral cavity by a gap behind the third molar. Wherein, when the inspection to carrying out the inside inspection in oral cavity, because of the reason of patient crowd self physique or disease, take place to open the effect to the oral cavity as for patient itself, and then influence medical personnel to the inside inspection in patient oral cavity, the medical field at present does not have concrete oral cavity to assist simultaneously and opens the device yet, and then can carry out the oral cavity inspection to medical personnel and cause certain observation detection influence. In view of this, an oral cavity opening assisting device for stomatology department is provided, which is convenient for opening the oral cavity, so as to solve the problems in the existing medical field.

Disclosure of Invention

The invention aims to provide an oral cavity opening assisting device for stomatology, which is convenient for opening the oral cavity and solves the problems in the background technology.

In order to achieve the above object, the present invention provides an oral cavity opening assisting device for an oral cavity department, including an opening mechanism, the opening mechanism at least including:

the lower toothed plate is symmetrically arranged below the upper toothed plate, the upper toothed plate and the lower toothed plate are both in a semicircular ring shape with an opening facing one side, the side ends of the upper toothed plate and the lower toothed plate are symmetrically connected with side clamping frames, and the side clamping frames are in an N shape with an opening facing one side;

go up the pinion rack when specifically using, through going up pinion rack and pinion rack down and oral area tooth fixed occlusion, wherein go up the pinion rack and be the semicircle ring-type that is opening case one side with pinion rack down, so that can stabilize the adaptation interlock with the tooth of human oral area, the side card frame that the side set up can stabilize fixed joint to the tooth that the tooth oral area is, then again, go up the pinion rack, the side card frame all adopts preferred natural resin material down the pinion rack, so that can not cause the damage to patient's oral area, increase the security attribute.

The lifting mechanism comprises two supporting plates which are arranged in a vertically symmetrical mode, two supporting bars are hinged between the two supporting plates, the supporting bars are four groups of symmetrical supporting bars, rotating parts are arranged between the supporting bars in a symmetrical mode and comprise connecting rods, the connecting rods are used for movably connecting the hinged parts between the adjacent supporting bars, fixed shafts are arranged on the outer surfaces of the connecting rods, transmission rods are arranged inside the fixed shafts, external threads are arranged at the two end parts of the transmission rods correspondingly, the transmission rods are in threaded connection with the fixed shafts, a rotating rod is arranged at one side end of each transmission rod, and the rotating rod is L-shaped;

when the lifting mechanism is used in detail, the supporting plates are symmetrically arranged up and down, the supporting bars are hinged between the supporting plates, two groups of supporting bars are arranged at each end of the two side ends, the connecting rods are arranged between the opposite supporting bars, namely, the hinged supporting bars can realize synchronous motion, the fixed columns are arranged at the outer sides of the connecting rods, the transmission rods arranged at the inner sides of the fixed columns are in threaded connection with the fixed columns, namely, the transmission rods rotate through the rotation of the rotating rods, namely, the transmission rods rotate, namely, the transmission rods can move to one side due to the threads through the connecting rods and the fixed rods which are oppositely arranged, meanwhile, the supporting bars which are hinged and matched are changed, namely, the supporting bars can be folded up or folded down, namely, the position of the upper supporting plates is changed, wherein the lifting mechanism is positioned between the side clamping frames which are oppositely arranged, namely, the position of the upper supporting plates is changed, so that the position of the upper toothed plate is changed, and the opening of people with different sizes can be supported in different sizes.

The side pushing mechanism comprises a rectangular fixed box with an upward opening, driven bevel gears are symmetrically arranged inside the fixed box, the side ends of the driven bevel gears are all in meshed connection with driving bevel gears, a driving shaft is arranged inside the driving bevel gears, transmission screw rods are arranged inside the driven bevel gears, inner movable plates are in threaded connection with the surfaces of the transmission screw rods, a fixed bin is arranged outside the fixed box and is L-shaped, and the inner movable plates are in sliding connection with the inner bottom of the fixed bin;

when the side pushing mechanism is used specifically, the side pushing mechanism is connected with the driving bevel gear in a meshed mode through the driven bevel gear, meanwhile, the transmission screw rods are arranged in the driven bevel gear, namely, the driving shaft rotates, namely, the driving bevel gear rotates synchronously, namely, the driven bevel gear connected in a meshed mode can rotate synchronously, namely, the transmission screw rods rotate, namely, the movable plate in threaded connection with the surface of the transmission screw rods is in movable contact with the fixed bin through the bottom, so that the movable plate can move to one side end through the rotation of the transmission screw rods, namely, the movable plate can push one side of the skin and meat tissue in the oral cavity to push the one side of the box, namely, the oral cavity can be opened again.

As a further improvement of the technical scheme, inner ring gaskets are arranged inside the upper toothed plate and the lower toothed plate and used for collecting tartar for teeth in the oral cavity.

As a further improvement of the technical scheme, the upper toothed plate and the lower toothed plate are both provided with arc-shaped limiting plates, and one side end of each arc-shaped limiting plate is provided with a limiting spring.

As a further improvement of the technical scheme, a plurality of round openings are formed in the surface of the lower toothed plate, illuminating lamps are arranged inside the round openings, and limiting columns are arranged at the side ends of the round openings.

As a further improvement of the technical scheme, a plurality of groups of slow descending springs are arranged on the surface of one supporting plate.

As a further improvement of the technical scheme, a plurality of groups of clamping clips are symmetrically arranged on the surface of the supporting plate, the clamping clips are arc-shaped plates with openings towards one side, and the clamping clips are used for hinging the supporting bar in a movable manner.

As a further improvement of the technical scheme, a rubber patch is arranged at the side end of one of the transmission screw rods, and a turntable is mounted at one side end of the driving shaft.

As a further improvement of the technical scheme, a lower jaw fixing device is arranged at the lower part of the opening mechanism, the lower jaw fixing device comprises an arc-shaped lower jaw patch plate with an upward opening, and a cotton patch is arranged in the lower jaw patch plate.

As a further improvement of the technical solution, a side end of the lower jaw plate is provided with an "L" -shaped fixing rod, a surface of the fixing rod is provided with an "L" -shaped side telescopic rod, a surface of the side telescopic rod is provided with a side fixing ring, a side end of the side telescopic rod is fixedly mounted with the surface of the lower toothed plate, a bottom telescopic rod is arranged at the bottom of the lower jaw plate, and a bottom fixing ring is arranged on the surface of the bottom telescopic rod.

As a further improvement of the technical scheme, a bottom plate is installed at the bottom of the bottom telescopic rod, universal wheels are arranged at four ends of the bottom plate, an endoscope plate is arranged inside the bottom plate and comprises an inner cavity, and lenses are installed inside the inner cavity.

Compared with the prior art, the invention has the beneficial effects that:

1. among this department of stomatology oral area struts auxiliary device convenient to oral area is open, through fixing the interlock with last pinion rack and lower pinion rack and oral area tooth, wherein last pinion rack is the semicircle ring-type that is opening case one side with lower pinion rack to can stabilize the adaptation interlock with the tooth of human oral area as for.

2. This a be convenient for open oral area department struts auxiliary device with oral area, rotation through the bull stick, the transfer line rotates promptly, connecting rod and dead lever through relative setting, make the transfer line can take place to one side and remove because of the threaded reason, and simultaneously, change between the articulated complex support bar, the support bar can take place to fold or fold down promptly, even the position that makes the upper portion fagging changes, wherein elevating system is located between the side card frame of relative installation, change through the position of upper portion fagging promptly, make the position of going up the pinion rack change, can carry out not unidimensional the assistance of strutting to the oral area to the people of not unidimensional.

3. This be convenient for open oral area department struts auxiliary device with oral area, through the rotation with the driving shaft, even have driving bevel gear synchronous rotation, driven bevel gear that the meshing is connected promptly can synchronous rotation, the transmission lead screw rotates promptly, the fly leaf at the surface threaded connection of transmission lead screw promptly through the movable contact of bottom with fixed storehouse to help the fly leaf to move to one side end through the rotation of transmission lead screw, the fly leaf can carry out case one side to the skin meat tissue in oral cavity promptly and promote, the oral area can obtain the effect of strutting once more.

4. Among this a department of stomatology oral area struts auxiliary device convenient to oral area is open, through arc limiting plate and the spacing spring that sets up, a side of its spacing spring all is fixed mounting with the inboard of last pinion rack and the inboard of pinion rack down, promptly through the contact connection back of tooth and arc limiting plate, can make through spacing spring all can realize the fastening interlock to not unidimensional tooth, even make patient and last pinion rack and pinion rack stabilize the interlock more and be connected.

Drawings

FIG. 1 is a schematic view of the entire structure of embodiment 1;

FIG. 2 is an exploded view of the expanding mechanism of embodiment 1;

fig. 3 is a schematic structural view of an arc-shaped limiting plate in embodiment 1;

FIG. 4 is a schematic view of the structure at A in example 1;

FIG. 5 is an exploded view of the elevating mechanism of embodiment 1;

FIG. 6 is a partial structural view of a rotating member according to embodiment 1;

FIG. 7 is a structural exploded view of the side-pushing mechanism according to embodiment 1;

FIG. 8 is a schematic view of the structure at B in example 1;

fig. 9 is an exploded view of the lower jaw fixing device according to embodiment 1;

fig. 10 is a disassembled view showing the structure of the plate member of the endoscope in example 1.

The various reference numbers in the figures mean:

100. an opening mechanism;

110. an upper toothed plate; 111. an inner ring gasket; 112. an arc limiting plate; 1120. a limiting spring; 113. a side clamping frame;

120. a lower toothed plate; 121. a round mouth; 1210. an illuminating lamp; 122. a limiting column;

130. a lifting mechanism; 131. a supporting plate; 1310. a slow descending spring; 132. a supporting strip; 1320. clamping; 133. a rotating member; 1331. a connecting rod; 1332. a fixed shaft; 1333. a transmission rod; 1334. an external thread; 1335. a rotating rod;

140. a side pushing mechanism; 141. a fixed box; 142. a driven bevel gear; 1421. a transmission screw rod; 1422. rubber paster; 143. a drive bevel gear; 144. a drive shaft; 1440. a turntable; 145. an inner movable plate; 1450. pushing the column; 146. an outer movable plate; 147. fixing the bin;

200. a chin securing device;

210. a lower jaw flitch plate; 2101. sticking cotton; 211. fixing the rod; 2111. a side telescopic rod; 2112. a side fixing ring; 212. a bottom telescoping rod; 2120. a bottom retainer ring; 213. a base plate; 2130. a universal wheel;

220. an endoscope plate; 221. an inner cavity; 2210. a lens.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Example 1

Referring to fig. 1 to 10, the present embodiment provides an oral cavity opening assisting device for facilitating opening of an oral cavity, including an opening mechanism 100, where the opening mechanism 100 at least includes:

the lower toothed plate 120 is symmetrically arranged below the upper toothed plate 110, the upper toothed plate 110 and the lower toothed plate 120 are both in a semicircular shape with an opening facing one side, the side ends of the upper toothed plate 110 and the lower toothed plate 120 are both symmetrically connected with side clamping frames 113, and the side clamping frames 113 are in an N shape with an opening facing one side;

go up pinion rack 110 when specifically using, through going up pinion rack 110 and pinion rack 120 and oral area tooth fixed occlusion, wherein go up pinion rack 110 and pinion rack 120 and be the semicircle ring-type that is opening case one side, so that can stabilize the adaptation interlock with the tooth of human oral area, the side card frame 113 that the side set up can stabilize fixed joint to the tooth that the tooth oral area is, then, go up pinion rack 110, side card frame 113 and pinion rack 120 all adopt preferred natural resin material down, so that can not cause the damage to patient's oral area, increase the security attribute.

The lifting mechanism 130 comprises two supporting plates 131, the two supporting plates 131 are arranged in a vertically symmetrical mode, two supporting bars 132 are hinged between the opposite supporting plates 131, the supporting bars 132 are four groups arranged in a symmetrical mode, rotating parts 133 are installed between the symmetrical supporting bars 132, each rotating part 133 comprises a connecting rod 1331, each connecting rod 1331 is used for movably connecting the hinged position between the corresponding supporting bar 132, a fixed shaft 1332 is arranged on the outer surface of each connecting rod 1331, a transmission rod 1333 is arranged inside each fixed shaft 1332, external threads 1334 are oppositely arranged at two end portions of each transmission rod 1333, each transmission rod 1333 is in threaded connection with the corresponding fixed shaft 1332, a rotating rod 1335 is arranged at one side end of each transmission rod 1333, and each rotating rod 1335 is in an L shape;

when the lifting mechanism 130 is used in detail, the supporting plates 131 are symmetrically arranged up and down, the supporting bars 132 are hinged between the supporting plates 131, two sets of supporting bars 132 are arranged at each end of two sides, wherein the connecting rods 1331 are arranged between the opposite supporting bars 132, i.e. the hinged supporting bars 132 can move synchronously, the fixed shaft 1332 is arranged at the outer side of the connecting rod 1331, the driving rod 1333 arranged at the inner side of the fixed shaft 1332 is in threaded connection with the fixed shaft 1332, i.e. the driving rod 1333 rotates by the rotation of the rotating rod 1335, i.e. the driving rod 1333 rotates, i.e. the driving rod 1331 and the fixed shaft 1332 are oppositely arranged, so that the driving rod 1333 can move to one side due to the thread, and meanwhile, the hinged supporting bars 132 are changed, i.e. the supporting bars 132 can be folded up or folded down, i.e. the position of the upper supporting plate 131 is changed, wherein the lifting mechanism 130 is positioned between the oppositely arranged side clamping frames 113, that is, the position of the upper tooth plate 110 is changed by the position change of the upper supporting plate 131, so that the distraction assistance of different sizes can be performed for the mouths of people with different sizes.

The side pushing mechanism 140, the side pushing mechanism 140 includes a rectangular fixed box 141 with an upward opening, driven bevel gears 142 symmetrically arranged inside the fixed box 141, side ends of the driven bevel gears 142 are all connected with a driving bevel gear 143 in a meshing manner, a driving shaft 144 is arranged inside the driving bevel gear 143, transmission lead screws 1421 are arranged inside the driven bevel gears 142, an inner movable plate 145 is connected to the surfaces of the transmission lead screws 1421 in a threaded manner, a fixed bin 147 is arranged outside the fixed box 141, the fixed bin 147 is in an "L" shape, and the inner movable plate 145 is slidably connected with the inner bottom of the fixed bin 147;

when the side pushing mechanism 140 is used specifically, the driven bevel gear 142 is engaged with the driving bevel gear 143, and meanwhile, the driving screws 1421 are disposed inside the driven bevel gear 142, that is, the driving shaft 144 rotates, that is, the driving bevel gear 143 rotates synchronously, that is, the driven bevel gear 142 engaged with the driving bevel gear 142 can rotate synchronously, that is, the driving screws 1421 rotate, that is, the inner movable plate 145 screwed on the surface of the driving screws 1421 is in movable contact with the fixed bin 147 through the bottom, so as to facilitate the inner movable plate 145 to move to one side end through the rotation of the driving screws 1421, that is, the inner movable plate 145 pushes the skin and meat tissue inside the oral cavity to one side, that is, the oral cavity can be opened again.

In this embodiment, go up toothed plate 110 and lower toothed plate 120's inside all is provided with inner circle gasket 111, inner circle gasket 111 is used for carrying out the effect that tartar was collected to the tooth of oral cavity, be natural rubber material inner circle gasket 111 through setting up, inner circle gasket 111 can carry out certain guard action to the tooth to the patient when carrying out the oral cavity inspection on the one hand, on the other hand makes when the patient presss from both sides tight oral cavity inspection, because of some food waste may be remained to the inside tooth of patient oral cavity, patient oral cavity food waste that produces of toothed plate 110 and lower toothed plate 120 can be obtained effective collection through inner circle gasket 111 promptly.

Specifically, the inside of going up pinion rack 110 and pinion rack 120 all is provided with arc limiting plate 112, a side of arc limiting plate 112 is provided with limiting spring 1120, because of considering to the crowd of different age brackets, the inside tooth size in its oral cavity is not unidimensional, and then arc limiting plate 112 and limiting spring 1120 through setting up, a side end of its limiting spring 1120 all is fixed mounting with the inboard of going up pinion rack 110 and pinion rack 120's inboard down, be connected the back through tooth and arc limiting plate 112's contact promptly, can make all can realize the fastening interlock to unidimensional tooth through limiting spring 1120, even make patient and last pinion rack 110 and pinion rack 120 more stable interlock be connected.

Further, the surface of the lower toothed plate 120 is provided with a plurality of round openings 121, the inside of the round openings 121 is provided with illuminating lamps 1210, the side ends of the round openings 121 are provided with limit posts 122, the illuminating lamps 1210 and the limit posts 122 are arranged, wherein the illuminating lamps 1210 are turned on, so that medical staff can observe the inside of the oral cavity of a patient more clearly, and meanwhile, the plurality of limit posts 122 are arranged so that the two end plates of the upper toothed plate 110 and the lower toothed plate 120 can obtain a basic opening effect when not going up and down, wherein the working principle of the illuminating lamps 1210 is that the heart of the illuminating lamps is a semiconductor wafer, one end of the wafer is attached to a support, one end of the wafer is a negative electrode, the other end of the wafer is connected with a positive electrode of a power supply, so that the whole wafer is packaged by epoxy resin, the semiconductor wafer is composed of two parts, one part is a P-type semiconductor, and a cavity inside the wafer is dominant, the other end is an N-type semiconductor, which mainly contains electrons, but when the two semiconductors are connected, a P-N junction is formed between the two semiconductors, when current is applied to the wafer through a lead, the electrons are pushed to a P region, the electrons and holes are combined in the P region, and then energy is emitted in the form of photons, which is the principle of light emission of the illuminating lamp.

Still further, a plurality of groups of slow-falling springs 1310 are arranged on the surface of one of the supporting plates 131, and the lifting mechanism 130 is slowly moved downwards when the position of the lifting mechanism 130 is changed and lowered, that is, the upper supporting plate 131 is downward, through the arranged groups of slow-falling springs 1310, when the whole device is positioned inside the oral cavity of the patient, that is, the lifting mechanism 130 is slowly moved downwards in the oral cavity of the patient, that is, the skin and flesh tissues in the oral cavity of the patient are laterally lowered.

Wherein, the surperficial symmetry of relative fagging 131 installs multiunit clamping 1320, and clamping 1320 is the arc platelike of opening to one side, and clamping 1320 is used for articulated to the activity of support bar 132, and the clamping 1320 that sets up carries out articulated cooperation with corresponding support bar 132, makes support bar 132 when moving about more stable and fagging 131 be connected, and elevating system 130 is when acting on more safety and stability promptly.

Moreover, a rubber patch 1422 is disposed at a side end of one of the transmission lead screws 1421, a rotating disc 1440 is mounted at one side end of the driving shaft 144, the rubber patch 1422 can protect the oral skin and flesh when the transmission lead screw 1421 is transmitting through the disposed rubber patch 1422, an outer movable plate 146 is disposed at a side end of the inner movable plate 145, and a plurality of pushing posts 1450 are disposed on a surface of the inner movable plate 145, wherein the outer movable plate 146 is located at a smooth side end of the surface of the transmission lead screw 1421, that is, the driving shaft 144 is rotated through the rotating disc 1440, that is, the transmission lead screw 1421 rotates, that is, the inner movable plate 145 transmits, that is, the outer movable plate 146 is pushed to move through the pushing posts 1450, that is, the inside of the oral cavity is opened.

In addition, the lower part of the opening mechanism 100 is provided with a lower jaw fixing device 200, the lower jaw fixing device 200 comprises an arc-shaped lower jaw patch 210 with an upward opening, a cotton patch 2101 is arranged inside the lower jaw patch 210, the lower jaw patch 210 can be fixedly attached to the lower jaw of the patient through the arc-shaped lower jaw patch 210, and the lower jaw of the patient can be more comfortable when the lower jaw of the patient is attached to the lower jaw of the patient through the cotton patch 2101 arranged inside the lower jaw patch.

Further, an L-shaped fixing rod 211 is disposed at a side end of the chin strap 210, an L-shaped side extension rod 2111 is disposed on a surface of the fixing rod 211, a side fixing ring 2112 is disposed on a surface of the side extension rod 2111, a side end of the side extension rod 2111 is fixedly mounted on a surface of the lower toothed plate 120, a bottom extension rod 212 is disposed at a bottom of the chin strap 210, a bottom fixing ring 2120 is disposed on a surface of the bottom extension rod 212, the side fixing ring 2112 is fixedly clamped after a certain position by stretching of the side extension rod 2111, the bottom extension rod 212 is synchronously moved, the bottom fixing ring 2120 is clamped at the same position, that is, the position of the chin strap 210 is changed, so that the utility model can be applied to a plurality of patients for attaching and fixing the chin strap 210, the whole height of the head is required to a certain position, which is convenient for the patients to promote a certain comfort during oral cavity examination, wherein the working principle of the extension rod is as follows, through the insertion fit of the inner rod and the outer rod, the length of the whole inner rod is changed by stretching the inner rod.

It is worth to be noted that, the bottom plate 213 is installed at the bottom of the bottom telescopic rod 212, the universal wheels 2130 are respectively installed at four ends of the bottom plate 213, the endoscope plate 220 is installed inside the bottom plate 213, the endoscope plate 220 includes the inner cavity 221, the lens 2210 is installed inside the inner cavity 221, the lower plate 213 and the universal wheels 2130 installed at the bottom end thereof can move the position of the lower jaw fixing device 200, that is, the position of the whole device moves, and at the same time, the lens 2210 is pulled out by pulling out the inner cavity 221, when the patient needs to observe the inside of the oral cavity, the lens 2210 can copy off the part of the operation of the medical staff to the inside of the oral cavity.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.