CN111544247B

CN111544247B - Oral opening device

Info

Publication number: CN111544247B
Application number: CN201910115784.5A
Authority: CN
Inventors: 张婷婷
Original assignee: Union Hospital Tongji Medical College Huazhong University of Science and Technology
Current assignee: Union Hospital Tongji Medical College Huazhong University of Science and Technology
Priority date: 2019-02-15
Filing date: 2019-02-15
Publication date: 2025-01-24
Anticipated expiration: 2039-02-15
Also published as: CN111544247A

Abstract

The present invention relates to the field of medical technology, and discloses an oral opening device, including a lower connecting arm, an upper connecting arm is arranged on the upper outer surface of the lower connecting arm, a rotating column is arranged between the lower connecting arm and the upper connecting arm, a magnet block is arranged inside the rotating column, a solid rivet is arranged on the front outer surface of the lower connecting arm, a lower extension arm is arranged at one end of the lower connecting arm, a silicone sleeve is arranged at one end of the upper extension arm, a supporting device is arranged on the lower outer surface of the upper connecting arm, and a supporting plate is arranged on the upper outer surface of the lower connecting arm near the bottom of the supporting device. This oral opening device can be adjusted in size according to the patient's incisor spacing, and the silicone sleeve can be flexibly replaced. The spacing between the upper handle and the lower handle can be flexibly adjusted. It is more convenient to store and easy to disassemble for cleaning, which brings better prospects for use.

Description

Oral cavity opening device

Technical Field

The invention relates to the technical field of medicine, in particular to an oral cavity opening device.

Background

The utility model provides a patient's radiotherapy post-opening difficulty, the patient usually can appear opening the difficult phenomenon of mouth, in the medical treatment, usually need prop the oral cavity with the bottle plug, but because of the bottle plug diameter is fixed, can not change, there is the embarrassment that can not be plugged in the patient that the tooth pitch is little, the bottle plug is too little can not use after the tooth pitch is big, the patient's recovered in-process brings certain inconvenience, secondly, doctor holds an oral cavity and struts the in-process of device, the distance between upper portion handle and the lower part handle can not be adjusted, can not adapt in a flexible way to doctor that the hand size is different, and still, in the in-process of placing after having used, whole oral cavity struts the device and is in the open state, bring inconvenience for the deposit of device, finally, whole device dismantlement is comparatively inconvenient, be unfavorable for carrying out careful washing to whole device, bring adverse effect to device health, for this reason, we propose an oral cavity struts the device.

Disclosure of Invention

(One) solving the technical problems

Aiming at the defects of the prior art, the invention provides the oral cavity opening device which can be adjusted according to the tooth pitch of a patient, the silica gel sleeve can be flexibly replaced, the distance between the upper handle and the lower handle can be flexibly adjusted, the storage is convenient, and the oral cavity opening device is easy to disassemble and clean, so that the problems that the traditional oral cavity opening device cannot be adjusted according to the tooth pitch of the patient, the distance between the upper handle and the lower handle cannot be flexibly adjusted, the storage is not facilitated, and the fine cleaning is not facilitated are solved.

(II) technical scheme

In order to achieve the purposes that the size can be adjusted according to the tooth pitch of a patient, the silica gel sleeve can be replaced according to the tooth pitch and the tooth socket, the distance between the upper handle and the lower handle can be flexibly adjusted, the storage is convenient, and the cleaning is easy to disassemble, the oral cavity opening device comprises a lower connecting arm, the upper end outer surface of the lower connecting arm is provided with the upper connecting arm, a rotating column is arranged between the lower connecting arm and the upper connecting arm, a magnet block is arranged in the rotating column, a solid rivet is arranged on the front end outer surface of the lower connecting arm, a lower extending arm is arranged at one end of the lower connecting arm, the silica gel sleeve is arranged at one end of the lower extending arm, a supporting device is arranged at the lower end outer surface of the upper connecting arm, a supporting plate is arranged below the upper end outer surface of the lower connecting arm close to the supporting device, a lower connecting arm is arranged at the other end of the lower connecting arm, a lower connecting plate is arranged at one end of the lower connecting arm opposite to the lower extending arm, a pressing plate is arranged at the inner end of the lower connecting arm, an embedded plate is arranged at the outer surface of the lower connecting plate, an embedded plate is arranged at the inner end of the lower connecting plate, and the outer surface of the adjusting plate is embedded into the handle.

Preferably, the rotation column penetrates through the upper connecting arm and the lower connecting arm, the rotation column is movably connected with the upper connecting arm and the lower connecting arm, a limit gasket is arranged on the outer surface of the rotation column, which is close to the upper connecting arm and the lower connecting arm, and is fixedly connected with the rotation column, and the limit gasket is movably connected with the upper connecting arm and the lower connecting arm.

Preferably, the solid rivet penetrates through the rotating column, the solid rivet is movably connected with the rotating column, one end of the solid rivet is in contact with the magnet block, the solid rivet is movably connected with the magnet block, the magnet block is fixedly connected with the rotating column, the solid rivet is two groups, and the outer surfaces of the lower connecting arm and the upper connecting arm are symmetrically distributed.

Preferably, the supporting device comprises a storage groove, the storage groove is embedded in the inner side of the upper connecting arm, a supporting rod is arranged on the inner side outer surface of the storage groove, a connecting shaft is arranged between one end of the supporting rod and the inner side outer surface of the storage groove, the connecting shaft penetrates through the inside of the supporting rod, the connecting shaft is fixedly connected with the storage groove, the supporting rod is movably connected with the storage groove through the connecting shaft, a buckle is arranged at the other end of the supporting rod, and the buckle is embedded in the inner side of the storage groove.

Preferably, the backup pad is inlayed in the upper end surface of lower part linking arm, be swing joint between backup pad and the lower part linking arm, the upper end surface of backup pad is provided with the supporting slot, the lower extreme surface of backup pad is provided with the elasticity cushion, be fixed connection between elasticity cushion and the backup pad, be fixed connection between the lower extreme surface of elasticity cushion and the inboard of lower part linking arm.

Preferably, one end of the upper connecting arm is provided with an upper extending arm, the number of the silica gel sleeves is two, clamping grooves are formed in the inner sides of the silica gel sleeves, the silica gel sleeves are sleeved on one ends of the upper extending arm and the lower extending arm through the clamping grooves, the upper extending arm is similar to the lower extending arm in size and shape, the other end of the upper connecting arm is provided with an upper handle relative to the upper extending arm at one end, and the connection mode between the upper handle and the upper connecting arm is similar to the connection mode between the lower handle and the lower connecting arm.

Preferably, a movable shaft is arranged between the pressing plate and the lower grip, a movable cavity is arranged below the lower grip, the movable shaft penetrates through the inside of the pressing plate and the inner side of the movable cavity, the pressing plate is movably connected with the movable cavity through the movable shaft, a compression spring is arranged on the outer surface of the lower end of the inner connecting plate, and the upper end and the lower end of the compression spring are fixedly connected with the inner connecting plate and the movable cavity respectively.

Preferably, the number of the embedded openings is a plurality of groups, the embedded openings are arranged in an array, the embedded protruding blocks are movably connected with the embedded openings, the number of the embedded protruding blocks is two, the embedded protruding blocks are symmetrically arranged on the front and rear outer surfaces of the lower grip, the embedded protruding blocks penetrate through the outer surfaces of the lower grip, the embedded protruding blocks are movably connected with the lower grip, and the lower ends of the embedded protruding blocks are fixedly connected with the inner connecting plate.

Preferably, the adjusting plate is fixedly connected with the lower connecting arm, one end of the lower grip is positioned at the inner side of the adjusting plate, a limiting bayonet is arranged at the edge of the outer surface of the lower grip, which is close to the adjusting plate, and the lower grip is movably connected with the adjusting plate through the limiting bayonet.

(III) beneficial effects

Compared with the prior art, the invention provides an oral cavity opening device, which has the following beneficial effects:

1. this oral cavity strutting arrangement stretches into the arm through the lower part and stretches into the effect of arm and upper portion, cooperation upper portion handle and lower part handle, stretch into arm and upper portion and stretch into the oral cavity of patient simultaneously through holding upper portion handle and lower part handle again, ensure that the silica gel cover is located between the patient's incisor, can change in a flexible way the type of silica gel cover according to tooth socket and incisor, later grip upper portion handle and lower part handle, under the effect of pivoted post, according to lever principle, can make lower part stretch into arm and upper portion stretch into the arm and prop out between the incisor, and then can make the oral cavity strut, the silica gel cover prevents to cause the damage to patient's incisor, can adjust the size according to patient's incisor distance, be favorable to patient's treatment.

2. The utility model provides an oral cavity strutting arrangement, through the effect of regulating plate, lower part handle and upper portion handle, through pressing the pressing plate back, the pressing plate rotates along the loose axle, the activity cavity provides movable space for the pressing plate, drive interior connecting plate and embedding lug and move downwards jointly, make embedding lug break away from the inlay entry, afterwards carry out the reciprocates with lower part handle or upper portion handle, adjust the interval between upper portion handle and the lower part handle, spacing bayonet socket prevents simultaneously that upper portion handle and lower part handle from breaking away from the regulating plate in the in-process of adjusting, after adjusting, loosen the pressing plate, under compression spring's elasticity effect, make the position of interior connecting plate and embedding lug resume, the embedding lug inlays in the inlay mouth department again, the position fixing with upper portion handle or lower part handle, possess the function of nimble interval of adjusting between upper portion handle and the lower part handle.

3. This oral cavity strutting arrangement, through the effect of strutting arrangement and backup pad, rotate the bracing piece along the connecting axle, make the bracing piece take out from the inboard of storage tank, afterwards make the one end contact of bracing piece in the backup pad, and inlay in the supporting tank, make and prop up each other between upper portion linking arm and the lower part linking arm, and then make the one end of lower part linking arm and upper portion linking arm laminate each other, make whole device pack up, press the backup pad when using once more, make the elasticity cushion compress, the bracing piece breaks away from the supporting tank, can use, be favorable to the depositing of an oral cavity strutting arrangement.

4. This oral cavity struts device, through the effect of solid rivet and magnet piece, at the in-process that needs to disassemble whole device, pull out two sets of solid rivets outside, when external force is greater than the magnet piece and acts on the absorption of solid rivet, can pull out solid rivet, later can separate upper portion linking arm and lower part linking arm, take out the spliced pole simultaneously, can clear up each part of device afterwards, possess the function of being convenient for disassemble, be favorable to carrying out meticulous clearance to the device.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a front cross-sectional view of the structure of the present invention;

FIG. 3 is an enlarged view of A in FIG. 2, which is a structural view of the present invention;

FIG. 4 is an enlarged view of B in FIG. 2, which is a structural view of the present invention;

FIG. 5 is a top cross-sectional view of a structural adjustment plate of the present invention;

FIG. 6 is a cross-sectional view of an upper and lower connecting arm of the present invention;

FIG. 7 is a schematic illustration of a silicone sleeve according to the present invention.

The device comprises a lower connecting arm, a3, a solid rivet, a4, a rotating column, a 5, a magnet block, a 6, a limit gasket, a 7, a lower extending arm, a 8, an upper extending arm, a 9, a silica gel sleeve, a 10, a supporting device, a 101, a storage groove, a 102, a supporting rod, a 103, a connecting shaft, a 104, a buckle, a 11, a supporting plate, a 12, a supporting groove, a 13, an elastic cushion, a 14, a lower grip, a 15, an upper grip, a 16, an adjusting plate, a 17, a pressing plate, a 18, a movable shaft, a 19, a movable cavity, a 20, an inner connecting plate, a 21, a compression spring, a 22, an embedded lug, a 23, an embedded opening and a 24, and a limit bayonet.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1-6, an oral cavity opening device includes a lower connecting arm 1, an upper connecting arm 2 is disposed on an upper outer surface of the lower connecting arm 1, a rotating column 4 is disposed between the lower connecting arm 1 and the upper connecting arm 2, a magnet block 5 is disposed inside the rotating column 4, a solid rivet 3 is disposed on a front outer surface of the lower connecting arm 1, a lower extending arm 7 is disposed on one end of the lower connecting arm 1, a silica gel sleeve 9 is disposed on one end of the lower extending arm 7, a supporting device 10 is disposed on a lower outer surface of the upper connecting arm 2, a supporting plate 11 is disposed below the upper outer surface of the lower connecting arm 1 near the supporting device 10, an adjusting plate 16 is disposed between the lower connecting arm 1 and the lower connecting arm 14, a pressing plate 17 is disposed on an outer surface of the lower handle 14, an inner connecting plate 20 is disposed on an upper outer surface of the inner connecting plate 20, and an inner side outer surface 23 is disposed on an inner side surface of the adjusting plate 16.

The rotating column 4 penetrates through the upper connecting arm 2 and the lower connecting arm 1, the rotating column 4 is movably connected with the upper connecting arm 2 and the lower connecting arm 1, a limiting gasket 6 is arranged on the outer surface of the rotating column 4, which is close to the space between the upper connecting arm 2 and the lower connecting arm 1, the limiting gasket 6 is fixedly connected with the rotating column 4, and the limiting gasket 6 is movably connected with the upper connecting arm 2 and the lower connecting arm 1, so that the upper connecting arm 2 and the lower connecting arm 1 can rotate; the solid rivet 3 penetrates through the rotating column 4, one end of the solid rivet 3 is in movable connection with the magnet block 5, the magnet block 5 is in fixed connection with the rotating column 4, the solid rivet 3 is in two groups, the solid rivet 3 is symmetrically distributed on the outer surfaces of the lower connecting arm 1 and the upper connecting arm 2, the upper connecting arm 2 and the lower connecting arm 1 are prevented from being separated from the rotating column 4, the supporting device 10 comprises a storage groove 101, the storage groove 101 is embedded on the inner side of the upper connecting arm 2, a supporting rod 102 is arranged on the inner side outer surface of the storage groove 101, a connecting shaft 103 is arranged between one end of the supporting rod 102 and the inner side outer surface of the storage groove 101, the connecting shaft 103 penetrates through the inner side of the supporting rod 102, the connecting shaft 103 is in fixed connection with the storage groove 101, the supporting rod 102 is in movable connection with the storage groove 101 through the connecting shaft 103, the other ends of the supporting rods 102 are provided with buckles 104 and 104 embedded on the inner side of the storage groove 101, the supporting rod 102 is prevented from falling off, the supporting rod 11 is embedded on the inner side of the lower connecting arm 1, the supporting rod 11 is embedded on the outer side of the upper connecting arm 1 and the lower connecting arm 11 is in movable connection with the outer surface of the lower connecting arm 1, the outer surface of the upper end of the supporting plate 11 is provided with a supporting groove 12, the outer surface of the lower end of the supporting plate 11 is provided with an elastic cushion 13, the elastic cushion 13 is fixedly connected with the supporting plate 11, the outer surface of the lower end of the elastic cushion 13 is fixedly connected with the inner side of the lower connecting arm 1, and the elastic cushion 13 ensures that the supporting plate 11 can be pressed down; the upper connecting arm 2 is provided with an upper extending arm 8 at one end, the number of the silica gel sleeves 9 is two, the inner sides of the silica gel sleeves 9 are provided with clamping grooves, the silica gel sleeves 9 are sleeved on one ends of the upper extending arm 8 and the lower extending arm 7 through the clamping grooves, the upper extending arm 8 and the lower extending arm 7 are similar in size and shape, the other end of the upper connecting arm 2 relative to one end of the upper extending arm 8 is provided with an upper grip 15, and the connection mode between the upper grip 15 and the upper connecting arm 2 is similar to the connection mode between the lower grip 14 and the lower connecting arm 1; a movable shaft 18 is arranged between the pressing plate 17 and the lower grip 14, a movable cavity 19 is arranged below the lower grip 14, the movable shaft 18 penetrates through the inside of the pressing plate 17 and the inside of the movable cavity 19, the pressing plate 17 and the movable cavity 19 are movably connected through the movable shaft 18, a compression spring 21 is arranged on the outer surface of the lower end of the inner connecting plate 20, the upper end and the lower end of the compression spring 21 are respectively fixedly connected with the inner connecting plate 20 and the movable cavity 19 to ensure that the pressing plate 17 can move, the number of embedding openings 23 is a plurality of groups, the embedding openings 23 are arranged in an array, the embedding lugs 22 are movably connected with the embedding openings 23, the number of the embedding lugs 22 is two groups, the embedding lugs 22 are symmetrically arranged on the front and rear outer surfaces of the lower grip 14, the embedding lugs 22 penetrate through the outer surface of the lower grip 14, the embedding lugs 22 are movably connected with the lower grip 14, the lower end of the embedded lug 22 is fixedly connected with the inner connecting plate 20, the inner connecting plate 20 can drive the embedded lug 22 to move, the adjusting plate 16 is fixedly connected with the lower connecting arm 1, one end of the lower grip 14 is positioned on the inner side of the adjusting plate 16, a limiting bayonet 24 is arranged on the outer surface of the lower grip 14 near the edge of the adjusting plate 16, the lower grip 14 is movably connected with the adjusting plate 16 through the limiting bayonet 24, and the position of the lower grip 14 can be adjusted.

When in operation, a user holds the upper grip 15 and the lower grip 14, then stretches the lower stretching arm 7 and the upper stretching arm 8 into the oral cavity of a patient at the same time, ensures that the silica gel sleeve 9 is positioned between the incisors of the patient, then holds the upper grip 15 and the lower grip 14 tightly, under the action of the rotating column 4, according to the lever principle, the lower stretching arm 7 and the upper stretching arm 8 can stretch the incisors to further stretch the oral cavity, the silica gel sleeve 9 can prevent damage to the incisors of the patient, can be changed according to the adjustment of the tooth pitch and the tooth socket of the patient, is beneficial to the treatment process of the patient, after the user presses the pressing plate 17, the pressing plate 17 rotates along the movable shaft 18 to drive the inner connecting plate 20 and the embedded lug 22 to jointly displace downwards, so that the embedded lug 22 is separated from the embedded inlet 23, and the user moves the lower grip 14 or the upper grip 15 up and down, after the adjustment, the user releases the pressing plate 17 to fix the position of the upper grip 14 or the lower grip 15, the user rotates the support rod 102 along the connecting shaft 103 to enable the support rod 102 to be taken out from the inner side of the storage groove 101, then one end of the support rod 102 contacts the support plate 11 and is embedded in the support groove 12, the whole device is retracted, the support plate 11 is pressed when the device is used again, the elastic cushion 13 is compressed, the support rod 102 is separated from the support groove 12, the device can be used, then an oral cavity expanding device can be stored, when the whole device needs to be disassembled and cleaned, the user can pull out two groups of solid rivets 3 outwards, namely the upper connecting arm 2 and the lower connecting arm 1 can be separated, the rotating column 4 can be taken out, and then each part of the device can be cleaned, is more practical.

In summary, by the action of the lower extending arm 7 and the upper extending arm 8, and by matching the upper grip 15 and the lower grip 14, by holding the upper grip 15 and the lower grip 14 and simultaneously extending the lower extending arm 7 and the upper extending arm 8 into the oral cavity of the patient, the silica gel sleeve 9 is ensured to be positioned between the teeth of the patient, the silica gel sleeve 9 can be replaced according to the requirements, and then the upper grip 15 and the lower grip 14 are held tightly, under the action of the rotating column 4, the lower extending arm 7 and the upper extending arm 8 can be opened between the teeth according to the lever principle, so that the oral cavity can be opened, the silica gel sleeve 9 can prevent damage to the teeth of the patient, and the size can be adjusted according to the tooth distance of the patient, thereby being beneficial to the treatment process of the patient; through the functions of the adjusting plate 16, the lower grip 14 and the upper grip 15, after the pressing plate 17 is pressed, the pressing plate 17 rotates along the movable shaft 18, the movable cavity 19 provides a movable space for the pressing plate 17, drives the inner connecting plate 20 and the embedded lug 22 to move downwards together, so that the embedded lug 22 is separated from the embedded inlet 23, then the lower grip 14 or the upper grip 15 moves up and down, the spacing between the upper grip 14 and the lower grip 15 is adjusted, meanwhile, the limit bayonet 24 prevents the upper grip 14 and the lower grip 15 from being separated from the adjusting plate 16 in the adjusting process, after the adjustment is finished, the pressing plate 17 is released, the positions of the inner connecting plate 20 and the embedded lug 22 are restored under the elastic force of the compression spring 21, the embedded lug 22 is re-embedded at the embedded inlet 23, the positions of the upper grip 14 or the lower grip 15 are fixed, the functions of flexibly adjusting the spacing between the upper grip 14 and the lower grip 15 are realized, through the functions of the supporting device 10 and the supporting plate 11, the support rod 102 is rotated along the connecting shaft 103, so that the support rod 102 is taken out from the inner side of the storage groove 101, one end of the support rod 102 is contacted with the support plate 11 and is embedded in the support groove 12, the upper connecting arm 2 and the lower connecting arm 1 are mutually spread, the lower extending arm 7 and one end of the upper extending arm 8 are mutually attached, the whole device is retracted, the support plate 11 is pressed when the support rod is used again, the elastic cushion 13 is compressed, the support rod 102 is separated from the support groove 12, the support rod 102 can be used, storage of an oral cavity expanding device is facilitated, through the effect of the solid rivets 3 and the magnet blocks 5, in the process of disassembling the whole device, the solid rivets 3 can be pulled out outwards, the external force is larger than that of the magnet blocks 5 when the solid rivets 3 are adsorbed, the upper connecting arm 2 and the lower connecting arm 1 are separated, the rotating column 4 is taken out, all parts of the device can be cleaned conveniently, and the device is cleaned carefully.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An oral opening device, comprising a lower connecting arm (1), characterized in that: an upper connecting arm (2) is arranged on the outer surface of the upper end of the lower connecting arm (1), a rotating column (4) is arranged between the lower connecting arm (1) and the upper connecting arm (2), a magnet block (5) is arranged inside the rotating column (4), a solid rivet (3) is arranged on the outer surface of the front end of the lower connecting arm (1), a lower extension arm (7) is arranged at one end of the lower extending arm (7), a silicone sleeve (9) is arranged at one end of the lower extension arm (7), a supporting device (10) is arranged on the outer surface of the lower end of the upper connecting arm (2), and the A support plate (11) is provided on the outer surface of the upper end of the lower connecting arm (1) near the bottom of the supporting device (10); a lower handle (14) is provided at the other end of the lower connecting arm (1) relative to one end of the lower extending arm (7); an adjustment plate (16) is provided between the lower connecting arm (1) and the lower handle (14); a pressing plate (17) is provided on the outer surface of the lower handle (14); an inner connecting plate (20) is provided at one end of the lower handle (14); an embedding protrusion (22) is provided on the outer surface of the upper end of the inner connecting plate (20); and an embedding opening (23) is provided on the inner outer surface of the adjustment plate (16);

An upper insertion arm (8) is provided at one end of the upper connecting arm (2), and the number of the silicone sleeves (9) is two groups. A card slot is provided on the inner side of the silicone sleeve (9), and the silicone sleeve (9) is sleeved on one end of the upper insertion arm (8) and the lower insertion arm (7) through the card slot. The size and shape of the upper insertion arm (8) and the lower insertion arm (7) are similar. An upper handle (15) is provided at the other end of the upper connecting arm (2) relative to one end of the upper insertion arm (8), and the connection method between the upper handle (15) and the upper connecting arm (2) is similar to the connection method between the lower handle (14) and the lower connecting arm (1);

A movable shaft (18) is provided between the pressing plate (17) and the lower handle (14); a movable cavity (19) is provided below the lower handle (14); the movable shaft (18) passes through the interior of the pressing plate (17) and the inner side of the movable cavity (19); the pressing plate (17) and the movable cavity (19) are movably connected via the movable shaft (18); a compression spring (21) is provided on the outer surface of the lower end of the inner connecting plate (20); the upper and lower ends of the compression spring (21) are fixedly connected to the inner connecting plate (20) and the movable cavity (19) respectively;

The number of the embedding openings (23) is a plurality of groups, the embedding openings (23) are arranged in an array, the embedding protrusions (22) are movably connected to the embedding openings (23), the number of the embedding protrusions (22) is two groups, the embedding protrusions (22) are symmetrically arranged on the front and rear outer surfaces of the lower handle (14), the embedding protrusions (22) penetrate the outer surface of the lower handle (14), the embedding protrusions (22) are movably connected to the lower handle (14), and the lower end of the embedding protrusion (22) is fixedly connected to the inner connecting plate (20);

The adjustment plate (16) and the lower connecting arm (1) are fixedly connected, one end of the lower handle (14) is located on the inner side of the adjustment plate (16), a limit snap-in (24) is provided on the outer surface of the lower handle (14) near the edge of the adjustment plate (16), and the lower handle (14) and the adjustment plate (16) are movably connected via the limit snap-in (24).

2. An oral opening device according to claim 1, characterized in that: the rotating column (4) passes through the interior of the upper connecting arm (2) and the lower connecting arm (1), the rotating column (4) is movably connected to the upper connecting arm (2) and the lower connecting arm (1), and a limiting gasket (6) is arranged on the outer surface of the rotating column (4) near the upper connecting arm (2) and the lower connecting arm (1), the limiting gasket (6) and the rotating column (4) are fixedly connected, and the limiting gasket (6) and the upper connecting arm (2) and the lower connecting arm (1) are movably connected.

3. An oral opening device according to claim 1, characterized in that: the solid rivet (3) passes through the interior of the rotating column (4), the solid rivet (3) and the rotating column (4) are movably connected, one end of the solid rivet (3) is in contact with the magnet block (5), the solid rivet (3) and the magnet block (5) are movably connected, the magnet block (5) and the rotating column (4) are fixedly connected, the number of the solid rivets (3) is two groups, and the solid rivets (3) are symmetrically arranged on the outer surfaces of the lower connecting arm (1) and the upper connecting arm (2).

4. An oral opening device according to claim 1, characterized in that: the supporting device (10) comprises a storage tank (101), the storage tank (101) is embedded in the inner side of the upper connecting arm (2), the inner outer surface of the storage tank (101) is provided with a support rod (102), a connecting shaft (103) is provided between one end of the support rod (102) and the inner outer surface of the storage tank (101), the connecting shaft (103) passes through the inside of the support rod (102), the connecting shaft (103) and the storage tank (101) are fixedly connected, the support rod (102) and the storage tank (101) are movably connected via the connecting shaft (103), and the other end of the support rod (102) is provided with a buckle (104), and the buckle (104) is embedded in the inner side of the storage tank (101).

5. An oral opening device according to claim 1, characterized in that: the support plate (11) is embedded in the upper outer surface of the lower connecting arm (1), the support plate (11) and the lower connecting arm (1) are movably connected, the upper outer surface of the support plate (11) is provided with a support groove (12), the lower outer surface of the support plate (11) is provided with an elastic pad (13), the elastic pad (13) and the support plate (11) are fixedly connected, and the lower outer surface of the elastic pad (13) and the inner side of the lower connecting arm (1) are fixedly connected.