CN210408938U

CN210408938U - Oral cavity opening device

Info

Publication number: CN210408938U
Application number: CN201920199372.XU
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: 2020-04-28
Anticipated expiration: 2029-02-15

Abstract

The utility model relates to the technical field of medicine, and discloses an oral cavity opening device, which comprises a lower connecting arm, an upper connecting arm is arranged on the outer surface of the upper end of the lower connecting arm, and an upper connecting arm is arranged between the lower connecting arm and the upper connecting arm There is a rotating column, the interior of the rotating column is provided with a magnet block, the outer surface of the front end of the lower connecting arm is provided with a solid core rivet, one end of the lower connecting arm is provided with a lower extending arm, and the lower extending arm is A silicone sleeve is provided at one end of the upper connecting arm, a supporting device is provided on the outer surface of the lower end of the upper connecting arm, and a supporting plate is provided on the outer surface of the upper end of the lower connecting arm near the supporting device. The oral opening device can be adjusted in size according to the patient's incisor spacing, at the same time, the silicone sleeve can be flexibly replaced, the distance between the upper handle and the lower handle can be flexibly adjusted, the storage is convenient, and it is easy to disassemble for cleaning. better usage prospects.

Description

Oral cavity opening device

Technical Field

The utility model relates to the technical field of medical science, specifically be an oral cavity struts device.

Background

The mouth opening difficulty of the nasopharyngeal carcinoma radiotherapy patient after the radiotherapy can be caused, the mouth opening difficulty of the patient can be caused, the oral cavity is supported by the bottle plug in the medical treatment, but the diameter of the bottle stopper is fixed and can not be changed, the embarrassment that the bottle stopper can not be plugged exists in a patient with small door tooth distance, the bottle stopper can not be used when the door tooth distance is enlarged, certain inconvenience is brought to the recovery process of the patient, secondly, when a doctor holds an oral cavity opening device, the distance between the upper grip and the lower grip cannot be adjusted, can not be flexibly adapted to doctors with different hand sizes, and in the process of placing after use, the whole oral cavity strutting arrangement is in the state of opening, brings inconvenience for depositing of device, and finally, the dismantlement of whole device is comparatively inconvenient, is unfavorable for carrying out careful washing to whole device, causes adverse effect to the device health, for this reason, we provide an oral cavity strutting arrangement.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides an oral cavity distraction device can adjust size and silica gel cover according to patient's door tooth pitch and can change in a flexible way, and interval between upper portion handle and the lower part handle can be adjusted in a flexible way, deposits comparatively conveniently, disassembles the advantage of carrying out the clearance easily, has solved traditional oral cavity distraction device and can not adjust the size according to patient's door tooth pitch, and interval between upper portion handle and the lower part handle can't be adjusted in a flexible way, is unfavorable for depositing, is unfavorable for carrying out the problem of careful clearance.

(II) technical scheme

For the aforesaid possesses and to have according to patient's door tooth pitch regulation size and silica gel cover can have more the door tooth according to changing with the alveolus, interval between upper portion handle and the lower part handle can be adjusted in a flexible way, deposits comparatively conveniently, disassembles the purpose of clearing up easily, the utility model provides a following technical scheme: an oral cavity opening device comprises a lower connecting arm, wherein an upper connecting arm is arranged on the outer surface of the upper end 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 outer surface of the front end of the lower connecting arm, a lower stretching arm is arranged at one end of the lower connecting arm, a silica gel sleeve is arranged at one end of the lower stretching arm, a supporting device is arranged on the outer surface of the lower end of the upper connecting arm, a supporting plate is arranged below the upper outer surface of the lower connecting arm, which is close to the supporting device, a lower handle is arranged at the other end of the lower connecting arm, which is opposite to one end of the lower stretching arm, an adjusting plate is arranged between the lower connecting arm and the lower handle, a pressing plate, the outer surface of the upper end of the inner connecting plate is provided with an embedded lug, and the outer surface of the inner side of the adjusting plate is provided with an embedded inlet.

Preferably, the rotation post runs through in the inside of upper portion linking arm and lower part linking arm, be swing joint between rotation post and upper portion linking arm and the lower part linking arm, the surface that rotates the post is close to and is provided with spacing gasket between upper portion linking arm and the lower part linking arm, be fixed connection between spacing gasket and the rotation post, be swing joint between spacing gasket and upper portion linking arm and the lower part linking arm.

Preferably, the solid rivet runs through in the inside of rotating the post, be swing joint between solid rivet and the rotation post, the one end and the magnet piece of solid rivet contact, be swing joint between solid rivet and the magnet piece, be fixed connection between magnet piece and the rotation post, the quantity of solid rivet is two sets of, the solid rivet is personally submitted the symmetry in the outward appearance of lower part linking arm and upper portion linking arm and is arranged.

Preferably, the supporting device comprises a storage groove embedded in the inner side of the upper connecting arm, a supporting rod is arranged on the outer surface of the inner side of the storage groove, a connecting shaft is arranged between one end of the supporting rod and the outer surface of the inner side of the storage groove and 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 supporting plate is embedded in the outer surface of the upper end of the lower connecting arm, the supporting plate is movably connected with the lower connecting arm, a supporting groove is formed in the outer surface of the upper end of the supporting plate, an elastic cushion is arranged on the outer surface of the lower end of the supporting plate, the elastic cushion is fixedly connected with the supporting plate, and the outer surface of the lower end of the elastic cushion is fixedly connected with the inner side of the lower connecting arm.

Preferably, the one end of upper portion linking arm is provided with upper portion and stretches into the arm, the quantity of silica gel cover is two sets of, the inboard of silica gel cover is provided with the draw-in groove, the silica gel cover stretches into the one end that the arm stretched into the arm with the lower part in upper portion through the draw-in groove cover, the size and the shape that the arm stretched into the arm with the lower part in upper portion are similar, the other end of upper portion linking arm is stretched into the one end of arm for upper portion and is provided with the upper portion handle, the connected mode between upper portion handle and the upper portion linking arm is similar with the connected mode between lower part handle and the lower.

Preferably, a movable shaft is arranged between the pressing plate and the lower handle, a movable cavity is arranged below the lower handle, the movable shaft penetrates through the inner part 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 embedding openings is a plurality of groups, the embedding openings are arranged in an array, the embedding lugs are movably connected with the embedding openings, the number of the embedding lugs is two, the front outer surface and the rear outer surface of the embedding lugs on the lower handle are symmetrically arranged, the embedding lugs penetrate through the outer surface of the lower handle, the embedding lugs are movably connected with the lower handle, and the lower ends of the embedding lugs are fixedly connected with the inner connecting plate.

Preferably, be fixed connection between regulating plate and the lower part linking arm, the one end of lower part handle is located the inboard of regulating plate, the edge that the surface of lower part handle is close to the regulating plate is provided with spacing bayonet socket, through spacing bayonet socket swing joint between lower part handle and the regulating plate.

(III) advantageous effects

Compared with the prior art, the utility model provides an oral cavity struts device possesses following beneficial effect:

1. this oral cavity struts device, stretch into the effect that arm and upper portion stretched into the arm through the lower part, cooperation upper portion handle and lower part handle, through gripping upper portion handle and lower part handle, stretch into the arm with the lower part again and stretch into the oral cavity of patient with the upper portion arm simultaneously, ensure that the silica gel cover is located between the patient's incisor, can carry out nimble change according to alveolus and incisor according to the type to the silica gel cover, later hold upper portion handle and lower part handle tightly, under the effect of rotating the post, according to lever principle, can make the lower part stretch into the arm and stretch into the arm with the upper portion and strut between the incisor, and then can make the oral cavity strut, the silica gel cover prevents to cause the damage to patient's incisor teeth, can adjust the size according to patient's incisor teeth distance, be favorable to patient's.

2. The oral cavity opening device has the advantages that through the action of the adjusting plate, the lower grip and the upper grip, after the pressing plate is pressed, the pressing plate rotates along the movable shaft, the movable cavity provides a movable space for the pressing plate, the inner connecting plate and the embedded lug are driven to move downwards together, so that the embedded lug is separated from the embedded opening, then the lower grip or the upper grip is moved up and down to adjust the distance between the upper grip and the lower grip, meanwhile, the limiting bayonet prevents the upper grip and the lower grip from separating from the adjusting plate in the adjusting process, and after the adjustment is finished, the pressing plate is loosened, under the elastic force action of the compression spring, the positions of the inner connecting plate and the embedding lug are restored, the embedding lug is embedded in the embedding opening again, the position of the upper grip or the lower grip is fixed, and the function of flexibly adjusting the distance between the upper grip and the lower grip is achieved.

3. This oral cavity struts device, 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, later make the one end contact of bracing piece in the backup pad, and inlay in supporting the inslot, make and strut each other between upper portion linking arm and the lower portion linking arm, and then make the one end of lower portion linking arm and upper portion linking arm laminate each other, make whole device pack up, press the backup pad when using again, make the compression of elastic cushion, the bracing piece breaks away from supporting the groove, can use, be favorable to depositing of an oral cavity struts device.

4. This oral cavity struts device, through the effect of solid rivet and magnet piece, disassemble the in-process of whole device in needs, extract two sets of solid rivets to the outside, external force is greater than when the magnet piece adsorbs the effect to solid rivet, can extract solid rivet, later can be with upper portion linking arm and lower part linking arm phase separation, will rotate the post simultaneously and take out, can clear up each part of device afterwards, possess the function of being convenient for to disassemble, be favorable to carrying out careful clearance to the device.

Drawings

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

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

fig. 3 is an enlarged view of a in the structure diagram 2 of the present invention;

fig. 4 is an enlarged view of B in the structure of fig. 2 of the present invention;

FIG. 5 is a top sectional view of the structure-adjusting plate of the present invention;

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

fig. 7 is a schematic view of the silica gel cover with a replaceable structure.

In the figure: 1. a lower connecting arm; 2. an upper connecting arm; 3. solid core rivets; 4. rotating the column; 5. a magnet block; 6. a limiting gasket; 7. the lower part extends into the arm; 8. the upper part extends into the arm; 9. a silica gel sleeve; 10. a support device; 101. a storage tank; 102. a support bar; 103. a connecting shaft; 104. buckling; 11. a support plate; 12. a support groove; 13. an elastic cushion; 14. a lower grip; 15. an upper grip; 16. an adjusting plate; 17. a pressing plate; 18. a movable shaft; 19. a movable cavity; 20. an inner connection plate; 21. a compression spring; 22. embedding the bump; 23. embedding an inlet; 24. and a limiting bayonet.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-6, an oral cavity distracting device comprises a lower connecting arm 1, 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 inserting arm 7 is arranged at one end of the lower connecting arm 1, a silica gel sleeve 9 is arranged at one end of the lower inserting arm 7, a supporting device 10 is arranged on the outer surface of the lower end of the upper connecting arm 2, a supporting plate 11 is arranged on the outer surface of the upper end of the lower connecting arm 1 close to the lower side of the supporting device 10, a lower grip 14 is arranged at the other end of the lower connecting arm 1 opposite to one end of the lower inserting arm 7, an, an inner connection plate 20 is provided at one end of the lower grip 14, an insertion protrusion 22 is provided on an outer surface of an upper end of the inner connection plate 20, and an insertion opening 23 is provided on an inner outer surface of the adjustment 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, 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, the limiting gasket 6 is movably connected with the upper connecting arm 2 and the lower connecting arm 1, and the upper connecting arm 2 and the lower connecting arm 1 can be guaranteed to rotate; the solid rivets 3 penetrate through the rotating column 4, the solid rivets 3 are movably connected with the rotating column 4, one end of each solid rivet 3 is in contact with the magnet block 5, the solid rivets 3 are movably connected with the magnet block 5, the magnet blocks 5 are fixedly connected with the rotating column 4, the solid rivets 3 are arranged in two groups, the outer surfaces of the lower connecting arm 1 and the upper connecting arm 2 of the solid rivets 3 are symmetrically arranged, and the upper connecting arm 2 and the lower connecting arm 1 are ensured not to be separated from the rotating column 4; the supporting device 10 comprises a storage groove 101, the storage groove 101 is embedded in the inner side of the upper connecting arm 2, a supporting rod 102 is arranged on the outer surface of the inner side of the storage groove 101, a connecting shaft 103 is arranged between one end of the supporting rod 102 and the outer surface of the inner side of the storage groove 101, the connecting shaft 103 penetrates through the inside of the supporting rod 102, the connecting shaft 103 is fixedly connected with the storage groove 101, the supporting rod 102 is movably connected with the storage groove 101 through the connecting shaft 103, a buckle 104 is arranged at the other end of the supporting rod 102, the buckle 104 is embedded in the inner side of the storage groove 101, and the; the supporting plate 11 is embedded in the outer surface of the upper end of the lower connecting arm 1, the supporting plate 11 is movably connected with 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 downwards; one end of the upper connecting arm 2 is provided with an upper stretching arm 8, the number of the silica gel sleeves 9 is two, the inner side of the silica gel sleeves 9 is provided with a clamping groove, the silica gel sleeves 9 are sleeved at one ends of the upper stretching arm 8 and the lower stretching arm 7 through the clamping groove, the size and the shape of the upper stretching arm 8 and the lower stretching arm 7 are similar, the other end of the upper connecting arm 2 is provided with an upper grip 15 relative to one end of the upper stretching arm 8, and the connection mode between the upper grip 15 and the upper connecting arm 2 is similar to that 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 handle 14, a movable cavity 19 is arranged below the lower handle 14, the movable shaft 18 penetrates through the interior of the pressing plate 17 and the inner side of the movable cavity 19, the pressing plate 17 is movably connected with the movable cavity 19 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, and the upper end and the lower end of the compression spring 21 are fixedly connected with the inner connecting plate 20 and the movable cavity 19 respectively to ensure that the pressing plate 17 can move; the number of the 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, the embedding lugs 22 are symmetrically arranged on the front and rear outer surfaces of the lower handle 14, the embedding lugs 22 penetrate through the outer surface of the lower handle 14, the embedding lugs 22 are movably connected with the lower handle 14, the lower ends of the embedding lugs 22 are fixedly connected with the inner connecting plate 20, and the inner connecting plate 20 can drive the embedding lugs 22 to move; the adjusting plate 16 is fixedly connected with the lower connecting arm 1, one end of the lower handle 14 is positioned on the inner side of the adjusting plate 16, a limiting bayonet 24 is arranged on the edge of the outer surface of the lower handle 14 close to the adjusting plate 16, and the lower handle 14 is movably connected with the adjusting plate 16 through the limiting bayonet 24, so that the position of the lower handle 14 can be adjusted.

When the medical oral cavity treatment device works, a user holds the upper grip 15 and the lower grip 14, then the lower stretching arm 7 and the upper stretching arm 8 stretch into the oral cavity of a patient at the same time, the silicon rubber sleeve 9 is positioned between the incisors of the patient, then the upper grip 15 and the lower grip 14 are tightly held, under the action of the rotating column 4, the lower stretching arm 7 and the upper stretching arm 8 can stretch the incisors according to the lever principle, so that the oral cavity can be stretched, the silicon rubber sleeve 9 can prevent the incisors of the patient from being damaged, the replacement can be carried out according to the incisor pitch and the alveolus of the patient, the medical treatment process of the patient is facilitated, 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 embedding lug 22 to jointly move downwards, so that the embedding lug 22 is separated from the embedding inlet 23, the user can move the lower grip 14 or the upper grip 15 up and down again, and adjust the, after the adjustment, the user loosens the pressing plate 17, the fixed position of the upper grip 14 or the lower grip 15 is completed, after the user is completed, the user rotates the supporting rod 102 along the connecting shaft 103, so that the supporting rod 102 is taken out from the inner side of the storage groove 101, then one end of the supporting rod 102 is contacted with the supporting plate 11 and is embedded in the supporting groove 12, the whole device is folded, the supporting plate 11 is pressed when the device is used again, the elastic cushion 13 is compressed, the supporting rod 102 is separated from the supporting groove 12 and can be used, then, the oral cavity opening device can be stored, when the whole device is needed to be disassembled and cleaned, the user outwards extracts the two groups of solid core rivets 3, the upper connecting arm 2 and the lower connecting arm 1 can be separated, the rotating column 4 is taken out at the same time, then, all parts of the device can be cleaned, and the.

In conclusion, the upper grip 15 and the lower grip 14 are matched under the action of the lower stretching arm 7 and the upper stretching arm 8, the upper grip 15 and the lower grip 14 are held, and then the lower stretching arm 7 and the upper stretching arm 8 simultaneously stretch into the oral cavity of a patient, so that the silica gel sleeve 9 is positioned between the incisors of the patient, the silica gel sleeve 9 can be replaced according to requirements, then the upper grip 15 and the lower grip 14 are held tightly, under the action of the rotating column 4, the lower stretching arm 7 and the upper stretching arm 8 can stretch out the incisors according to the lever principle, the oral cavity can be stretched out, the silica gel sleeve 9 can prevent the incisors of the patient from being damaged, the size can be adjusted according to the incisors of the patient, and the treatment process of the patient is facilitated; by the action 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, the fitting projection 22 is separated from the fitting opening 23, and then the lower grip 14 or the upper grip 15 is moved up and down to adjust the distance between the upper grip 14 and the lower grip 15, meanwhile, the limiting bayonet 24 prevents the upper grip 14 and the lower grip 15 from separating from the adjusting plate 16 in the adjusting process, after the adjustment is finished, the pressing plate 17 is loosened, under the elastic force of the compression spring 21, the positions of the inner connecting plate 20 and the embedding lug 22 are restored, the embedding lug 22 is embedded in the embedding opening 23 again, the position of the upper grip 14 or the lower grip 15 is fixed, and the function of flexibly adjusting the distance between the upper grip 14 and the lower grip 15 is achieved; under the action of the supporting device 10 and the supporting plate 11, the supporting rod 102 rotates along the connecting shaft 103, so that the supporting rod 102 is taken out from the inner side of the storage groove 101, then one end of the supporting rod 102 is contacted with the supporting plate 11 and embedded in the supporting groove 12, the upper connecting arm 2 and the lower connecting arm 1 are mutually supported, the lower extending arm 7 is mutually attached to one end of the upper extending arm 8, the whole device is folded, the supporting plate 11 is pressed when the device is used again, the elastic cushion 13 is compressed, and the supporting rod 102 is separated from the supporting groove 12 and can be used, so that the storage of the oral cavity opening device is facilitated; through solid rivet 3 and magnet piece 5's effect, in the in-process of whole device is disassembled to needs, extract two sets of solid rivet 3 to the outside, external force is greater than when magnet piece 5 is to the adsorption of solid rivet 3, can extract solid rivet 3, later can be with 1 phase separation of upper portion linking arm 2 and lower part linking arm, will rotate post 4 simultaneously and take out, can clear up each part of device afterwards, possess the function of being convenient for disassemble, be favorable to carrying out careful clearance to the device.

It is noted that, herein, relational terms such as first and second, and the like may be 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. Also, 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. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments 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 cavity struts device, includes lower part linking arm (1), its characterized in that: the upper end outer surface of the lower connecting arm (1) is provided with an upper connecting arm (2), 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 front end outer surface of the lower connecting arm (1), a lower stretching-in arm (7) is arranged at one end of the lower connecting arm (1), a silica gel sleeve (9) is arranged at one end of the lower stretching-in arm (7), a supporting device (10) is arranged on the lower end outer surface of the upper connecting arm (2), a supporting plate (11) is arranged below the upper end outer surface of the lower connecting arm (1) close to the supporting device (10), and a lower grip (14) is arranged at the other end of the lower connecting arm (1) relative to one end of the lower stretching-, be provided with between lower part linking arm (1) and lower part handle (14) regulating plate (16), the surface of lower part handle (14) is provided with pressing plate (17), the one end of lower part handle (14) is provided with inner connecting plate (20), the upper end surface of inner connecting plate (20) is provided with embedding lug (22), the inboard surface of regulating plate (16) is provided with inlays mouth (23).

2. The oral distraction device of claim 1, wherein: rotate post (4) and run through in the inside of upper portion linking arm (2) and sub-linking arm (1), it is swing joint to rotate between post (4) and upper portion linking arm (2) and sub-linking arm (1), the surface that rotates post (4) is close to and is provided with spacing gasket (6) between upper portion linking arm (2) and sub-linking arm (1), be fixed connection between spacing gasket (6) and rotation post (4), be swing joint between spacing gasket (6) and upper portion linking arm (2) and sub-linking arm (1).

3. The oral distraction device of claim 1, wherein: solid core rivet (3) run through in the inside of rotating post (4), be swing joint between solid core rivet (3) and rotation post (4), the one end and magnet piece (5) of solid core rivet (3) contact, be swing joint between solid core rivet (3) and magnet piece (5), be fixed connection between magnet piece (5) and rotation post (4), the quantity of solid core rivet (3) is two sets of, solid core rivet (3) are personally submitted the symmetry in the outward appearance of lower part linking arm (1) and upper portion linking arm (2) and are arranged.

4. The oral distraction device of claim 1, wherein: the supporting device (10) comprises a storage groove (101), the storage groove (101) is embedded in the inner side of the upper connecting arm (2), a supporting rod (102) is arranged on the outer surface of the inner side of the storage groove (101), a connecting shaft (103) is arranged between one end of the supporting rod (102) and the outer surface of the inner side of the storage groove (101), the connecting shaft (103) penetrates through the inner portion of the supporting rod (102), the connecting shaft (103) is fixedly connected with the storage groove (101), the supporting rod (102) is movably connected with the storage groove (101) through the connecting shaft (103), a buckle (104) is arranged at the other end of the supporting rod (102), and the buckle (104) is embedded in the inner side of the storage groove (101).

5. The oral distraction device of claim 1, wherein: backup pad (11) inlay in the upper end surface of sub-unit connection arm (1), be swing joint between backup pad (11) and sub-unit connection arm (1), the upper end surface of backup pad (11) is provided with support groove (12), the lower extreme surface of backup pad (11) is provided with elasticity cushion (13), be fixed connection between elasticity cushion (13) and backup pad (11), be fixed connection between the lower extreme surface of elasticity cushion (13) and the inboard of sub-unit connection arm (1).

6. The oral distraction device of claim 1, wherein: the one end of upper portion linking arm (2) is provided with upper portion and stretches into arm (8), the quantity of silica gel cover (9) is two sets of, the inboard of silica gel cover (9) is provided with the draw-in groove, silica gel cover (9) stretch into the one end that arm (8) and lower part stretched into arm (7) through the draw-in groove cover in upper portion, the size that arm (8) and lower part stretched into arm (7) is similar with the shape to upper portion stretch into, the other end of upper portion linking arm (2) stretches into the one end of arm (8) for upper portion and is provided with upper portion handle (15), the connected mode between upper portion handle (15) and upper portion linking arm (2) is similar with the connected mode between lower part handle (14) and lower part linking arm (1).

7. The oral distraction device of claim 1, wherein: be provided with loose axle (18) between according to pressing board (17) and lower part handle (14), the below of lower part handle (14) is provided with activity cavity (19), loose axle (18) run through in the inside of pressing board (17) and the inboard of activity cavity (19), through loose axle (18) swing joint between pressing board (17) and activity cavity (19), the lower extreme surface of inner connecting plate (20) is provided with compression spring (21), compression spring (21) upper and lower both ends respectively with inner connecting plate (20) and activity cavity (19) between fixed connection.

8. The oral distraction device of claim 1, wherein: the quantity of embedding mouth (23) is a plurality of groups, it arranges to inlay mouth (23) and be the array, be swing joint between embedding lug (22) and the embedding mouth (23), the quantity of embedding lug (22) is equal two sets of, embedding lug (22) is symmetrical arranging in the front and back surface of lower part handle (14), embedding lug (22) runs through the surface in lower part handle (14), be swing joint between embedding lug (22) and lower part handle (14), be fixed connection between the lower extreme of embedding lug (22) and interior connecting plate (20).

9. The oral distraction device of claim 1, wherein: be fixed connection between regulating plate (16) and lower part linking arm (1), the one end of lower part handle (14) is located the inboard of regulating plate (16), the edge that the surface of lower part handle (14) is close to regulating plate (16) is provided with spacing bayonet socket (24), through spacing bayonet socket (24) swing joint between lower part handle (14) and regulating plate (16).