CN114145874A

CN114145874A - Adjustable oral lip opening device for stomatologist

Info

Publication number: CN114145874A
Application number: CN202111400106.7A
Authority: CN
Inventors: 刘泱
Original assignee: Zhengzhou Stomatological Hospital
Current assignee: Zhengzhou Stomatological Hospital
Priority date: 2021-11-24
Filing date: 2021-11-24
Publication date: 2022-03-08

Abstract

The invention relates to the technical field of medical instruments, and discloses an adjustable lip opening device for stomatologists, which comprises a platform, wherein fixed shafts are fixed at the left and right ends of the platform, rotating rods are rotatably connected to the outer surfaces of the fixed shafts, a motor I is embedded on the lower surface of the platform, a threaded rod I is fixed at the bottom end of an output shaft of the motor I, a threaded block I is connected to the outer surface of the threaded rod I in a threaded manner, connecting rods are rotatably connected to the left and right ends of the threaded block I, the adjustable lip opening device can be used for opening and stably supporting the mouth of a patient by arranging an opening component, the fixed shafts, the motor I, the threaded rod I, the threaded block I, the connecting rods, the rotating rods and an electric telescopic rod, and can be conveniently placed into the oral cavity when being used by matching with the fixed shafts, the motor I, the threaded rod I, the threaded block I, the connecting rods, the rotating rods and the electric telescopic rod, and can laterally expand the lips so that the device can fit different sized mouths.

Description

Adjustable oral lip opening device for stomatologist

Technical Field

The invention relates to the technical field of medical instruments, in particular to an adjustable lip opening device for stomatologists.

Background

At present, the department of stomatology, one of the medical discipline classifications, the main stomatology diseases include stomatology facial skin sample, epiderm submandibular space infection, jaw face lymphangioma, dentate process development deformity, maxillary sinus malignant tumor, jaw glazed cell tumor, chronic ethmoid sinusitis, mandibular retraction, tetracycline teeth, leukoplakia lingualis and other diseases. In the prior art, a plurality of periodontal diseases can be completely cured, and the development of tissue biological engineering technology, such as guided tissue regeneration technology, gene technology, artificial tooth implantation and the like, brings exciting hopes for the regeneration of diseased teeth. However, periodontal therapy must be a sequential therapy, and the development of a detailed and effective treatment plan, the exquisite treatment of the physician, and the patient's positive coordination during the course of treatment are critical to the success of the treatment. The major categories of the oral cavity department are mainly classified from oral diseases, teeth and dental lesions, and the three categories can be further classified into oral cosmetology, dental implant, orthodontic treatment of teeth, oral ulcer, stomatitis and the like.

The lip spreader in the prior art is simple in structure, needs manual operation to spread mostly, is inconvenient to use, and human mouth is not uniform in size, and the adjustability of the traditional spreading device is poor, so that the using effect is not good enough, and the lip spreader needs to be improved.

Disclosure of Invention

Technical problem to be solved

In view of the deficiencies of the prior art, the present invention provides an adjustable lip spreader for use by a dentist that addresses the problems set forth in the background above.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: an adjustable lip opening device for stomatologists comprises a platform, wherein fixed shafts are fixed at the left end and the right end of the platform, rotating rods are rotatably connected to the outer surfaces of the fixed shafts, a first motor is embedded on the lower surface of the platform, a first threaded rod is fixed at the bottom end of an output shaft of the first motor, a first threaded block is in threaded connection with the outer surface of the first threaded rod, connecting rods are rotatably connected to the left end and the right end of the first threaded block, one end, away from the first threaded block, of each connecting rod is rotatably connected with the bottom end of each rotating rod, the top end of an electric telescopic rod is rotatably connected with a first U-shaped part, a fixing component is fixed at the top of the first U-shaped part, opening components are detachably connected to the opposite ends of the two fixing components, a second U-shaped part is fixed to the outer surface of the electric telescopic rod, handles are fixed on the opposite sides of the two fixing components, and triggers are arranged inside the handles, the rear sides of the two triggers are respectively provided with a groove, the inner parts of the grooves are connected with fixing parts in a sliding manner, the opposite ends of the two fixing parts are respectively fixedly connected with the inner surfaces of the two handles, the lower surfaces of the handles are fixedly provided with rope tubes, pull ropes penetrate through the inner parts of the rope tubes, the top ends of the pull ropes penetrate through the inner parts of the handles and are fixedly connected with the lower surfaces of the triggers, the lower surface of the fixing component is fixedly provided with a third U-shaped part, the bottom ends of the rope tubes extend to the inner parts of the third U-shaped part, the front surface and the rear surface of the inner part of the third U-shaped part are respectively and rotatably connected with rotating buckles, a slide rod is fixed between the two rotating buckles, a pull rod is arranged in the slide rod, the top end of the pull rod penetrates above the slide rod and is fixedly connected with the bottom ends of the pull ropes, the outer surface of the pull rod is sleeved with a sleeve, the bottom end of the pull rod is fixedly provided with an extrusion block, and the outer surface of the pull rod is positioned in the slide rod and is provided with a first spring, the improved structure of the spring comprises a spring, a sliding rod, a spring bottom, a clamping block, a sleeve and four supporting legs, wherein the top end of the spring is fixedly connected with the inner surface of the sliding rod, the bottom end of the spring is fixedly connected with the top of the clamping block, the sliding rod is internally located below the clamping block, the outer surface of the clamping block is sleeved with a spring II, the left end of the spring is fixedly connected with the inner surface of the sliding rod, the right end of the spring is fixedly connected with the outer surface of the clamping block, a plurality of clamping grooves are formed in the left side of the inside of the sleeve, the bottom end of the clamping block penetrates through the inside of the clamping grooves, and the lower surface of the platform is fixedly provided with four supporting legs which are distributed in a rectangular shape.

Preferably, the fixing component comprises a block body, a second motor is embedded in one side, away from the handle, of the block body, an insertion block is fixed at one end, away from the block body, of an output shaft of the second motor, a connecting groove is formed in one side, away from the handle, of the block body and located above the second motor, an elongated groove is formed in the rear surface inside the connecting groove, a pinion is rotatably connected to the inside of the elongated groove, a through groove is formed in the rear surface inside the elongated groove, the rear end of the through groove extends to the rear surface of the block body, a main gear is rotatably connected to the inside of the through groove, the front end of the main gear is meshed with the rear end of the pinion, a clamping rod is fixed on the upper surface of the pinion, and a third spring is fixed between the clamping rod and the rear surface inside the elongated groove.

Preferably, the opening subassembly is including the casing, the inside symmetry of casing is fixed with the vertical axis, the surface of vertical axis rotates and is connected with the folder, two the folder looks remote site all rotates and is connected with the connecting rod, two the connecting rod left end rotates jointly and is connected with thread block two, the inside threaded connection of thread block two has threaded rod two, two left ends of threaded rod run through extremely the casing left side, the casing left side is fixed with the connecting block, the spacing groove has been seted up to the connecting block rear surface, the kelly front end is located inside the spacing groove, the connecting block with the spread groove joint, the interface has been seted up to two left ends of threaded rod, the interface with the inserted block joint, fixed surface has the dead lever under the folder, dead lever surface cover is equipped with the gum cover.

Preferably, the fixing piece is of a T-shaped structure.

Preferably, the handle is of a U-shaped structure.

Preferably, the left end and the right end of the connecting rod are both arc-shaped structures.

Preferably, the rear end of the main gear extends to the rear of the block.

Preferably, the outer surface of the sliding rod is attached to the inner surface of the sleeve.

Preferably, one side of the extrusion block close to the fixture block is of an inclined plane structure.

Preferably, the rubber sleeve is made of medical silica gel.

(III) advantageous effects

The invention provides an adjustable lip opening device for stomatologists, which has the following beneficial effects:

(1) the mouth opening device is provided with the opening component, the fixed shaft, the motor I, the threaded rod I, the threaded block I, the connecting rod, the rotating rod and the electric telescopic rod, so that the mouth opening device can be used for opening and stably supporting the mouth of a patient, and meanwhile, the fixed shaft, the motor I, the threaded rod I, the threaded block I, the connecting rod, the rotating rod and the electric telescopic rod are matched, so that the mouth opening device is convenient for the patient to put into the mouth when the mouth opening device is used, and the lips can be transversely enlarged, so that the mouth opening device can be suitable for mouths of different sizes.

(2) The opening assembly is more convenient to disassemble and assemble when being maintained and replaced by arranging the fixing assembly.

(3) According to the invention, by arranging the handle, the trigger, the groove, the fixing piece, the rope pipe, the pull rope, the U-shaped piece III, the rotating buckle, the slide rod, the sleeve, the pull rod, the extrusion block, the fixture block, the spring I, the spring II and the clamping groove, when the lip of a patient is transversely opened, the opening component is adjusted in angle, and can be kept horizontal or kept to be matched with the face of the patient, so that the device is more flexible to use.

Drawings

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

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

FIG. 3 is a schematic top-down view of the fixing assembly and the opening assembly of the present invention;

FIG. 4 is an enlarged view of the structure at A in FIG. 2;

FIG. 5 is an enlarged view of the structure at B in FIG. 2;

FIG. 6 is an enlarged view of the structure at C in FIG. 2 according to the present invention.

In the figure: 1. a platform; 2. a fixing assembly; 201. a block body; 202. a second motor; 203. inserting a block; 204. connecting grooves; 205. a long groove; 206. a through groove; 207. a main gear; 208. a pinion gear; 209. a clamping rod; 210. a third spring; 3. an opening assembly; 31. a housing; 32. a vertical axis; 33. a clamp; 34. a connecting rod; 35. a second thread block; 36. a second threaded rod; 37. an interface; 38. connecting blocks; 39. a limiting groove; 310. fixing the rod; 311. a rubber sleeve; 4. a fixed shaft; 5. a first motor; 6. a first threaded rod; 7. a first thread block; 8. a connecting rod; 9. a rotating rod; 10. an electric telescopic rod; 11. a first U-shaped part; 12. a U-shaped part II; 13. a support leg; 14. a handle; 15. a trigger; 16. a groove; 17. a fixing member; 18. a rope tube; 19. pulling a rope; 20. a third U-shaped part; 21. turning and buckling; 22. a slide bar; 23. a sleeve; 24. a pull rod; 25. extruding blocks; 26. a clamping block; 27. a first spring; 28. a second spring; 29. a clamping groove.

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.

As shown in fig. 1 to 6, the present invention provides a technical solution: an adjustable lip opening device for stomatologists comprises a platform 1, wherein fixed shafts 4 are fixed at the left and right ends of the platform 1, rotating rods 9 are rotatably connected to the outer surfaces of the fixed shafts 4, a motor I5 is embedded on the lower surface of the platform 1, a threaded rod I6 is fixed at the bottom end of an output shaft of the motor I5, a threaded block I7 is connected to the outer surface of the threaded rod I6, connecting rods 8 are rotatably connected to the left and right ends of the threaded block I7, one ends, far away from the threaded block I7, of the connecting rods 8 are rotatably connected with the bottom end of the rotating rods 9, a U-shaped part I11 is rotatably connected to the top end of an electric telescopic rod 10, fixing components 2 are fixed at the tops of the U-shaped part I11, opening components 3 are detachably connected to the opposite ends of the two fixing components 2, U-shaped parts II 12 are fixed to the outer surfaces of the electric telescopic rod 10, handles 14 are fixed on the opposite sides of the two fixing components 2, triggers 15 are arranged in the handles 14, the opposite back sides of the two triggers 15 are respectively provided with a groove 16, fixing parts 17 are connected inside the grooves 16 in a sliding manner, the back ends of the two fixing parts 17 are respectively fixedly connected with the inner surfaces of the two handles 14, rope tubes 18 are fixed on the lower surfaces of the handles 14, pull ropes 19 penetrate through the rope tubes 18, the top ends of the pull ropes 19 penetrate through the handles 14 and are fixedly connected with the lower surfaces of the triggers 15, a third U-shaped part 20 is fixed on the lower surface of the fixing component 2, the bottom ends of the rope tubes 18 extend into the third U-shaped part 20, front and back surfaces inside the third U-shaped part 20 are respectively and rotatably connected with turnbuckles 21, a slide rod 22 is fixed between the two turnbuckles 21, a pull rod 24 is arranged inside the slide rod 22, the top end of the pull rod 24 penetrates above the slide rod 22 and is fixedly connected with the bottom ends of the pull ropes 19, a sleeve 23 is sleeved on the outer surface of the pull rod 24, the bottom end of the pull rod 24 is fixed with an extrusion block 25, and a first spring 27 is arranged inside the slide rod 22 on the outer surface of the pull rod 24, the top end of a first spring 27 is fixedly connected with the inner surface of a sliding rod 22, the bottom end of the first spring 27 is fixedly connected with the top of an extrusion block 25, a clamping block 26 is arranged below the extrusion block 25 and inside the sliding rod 22, a second spring 28 is sleeved on the outer surface of the clamping block 26, the left end of the second spring 28 is fixedly connected with the inner surface of the sliding rod 22, the right end of the second spring 28 is fixedly connected with the outer surface of the clamping block 26, a plurality of clamping grooves 29 are formed in the left side inside a sleeve 23, the bottom end of the clamping block 26 penetrates into the clamping grooves 29, four supporting legs 13 are fixed on the lower surface of a platform 1, the four supporting legs 13 are distributed in a rectangular shape, a first motor 5 is started to rotate a first threaded rod 6, a first threaded block 7 is threaded downwards to drive a connecting rod 8 to rotate, the connecting rod 8 pulls a rotating rod 9 to rotate, the distance between two opening assemblies 3 is opened, the head of a patient is convenient to place the head of the patient between two electric telescopic rods 10, the first motor 5 is controlled to rotate reversely, then under the push of the connecting rod 8, the two opening components 3 are relatively close to each other, meanwhile, the distance position is controlled by the telescopic rod 10 in a telescopic way, the opening components 3 are contacted with the mouth of a patient and are placed in the mouth of the patient, the lips of the patient are spread through the opening components 3, the opening components 3 are slowly separated through the rotation of the motor I5, the mouth of the patient is widened, meanwhile, a medical worker presses the trigger 15 to enable the pull rope 19 to pull the pull rod 24, the pull rod 24 drives the extrusion block 25, after the limiting of the extrusion block 25 is lost by the fixture block 26, the fixture block 26 retracts and is separated from the clamping groove 29 under the push of the spring II 28, after the limiting and fixing of the clamping groove 29 and the fixture block 26 are lost, the medical worker can adjust the angles of the fixing component 2 and the opening components 3 when the telescopic rod 10 is rotated and opened by holding the handle 14, so that the opening components 3 are horizontal or keep the angle matched with the face of the patient, when the medical staff loosens the trigger 15, the first spring 27 pushes the pushing block 25 to push the clamping block 26, so that the clamping block 26 is clamped into the corresponding clamping groove 29, the sliding rod 22 and the sleeve 23 are fixed, and the fixing assembly 2 cannot rotate at this time, thereby completing the angle adjustment.

Further, the fixing component 2 includes a block 201, a second motor 202 is embedded on a side of the block 201 away from the handle 14, an insertion block 203 is fixed on an end of an output shaft of the second motor 202 away from the block 201, a connection groove 204 is formed on a side of the block 201 away from the handle 14 above the second motor 202, a long groove 205 is formed on a rear surface inside the connection groove 204, a pinion 208 is rotatably connected inside the long groove 205, a through groove 206 is formed on the rear surface inside the long groove 205, a rear end of the through groove 206 extends to the rear surface of the block 201, a main gear 207 is rotatably connected inside the through groove 206, a front end of the main gear 207 is engaged with a rear end of the pinion 208, a clamping rod 209 is fixed on an upper surface of the pinion 208, a third spring 210 is fixed between the clamping rod 209 and the rear surface inside the long groove 205, when the opening component 3 needs maintenance or replacement, a medical worker can rotate the exposed main gear 207 with fingers, the main gear 207 drives the pinion 208 to rotate, the latch 209 is rotated to be received in the slot 205 and separated from the opening member 3, and then the opening member 3 is pulled to detach the opening member 3 from the fixing member 2.

Further, the opening assembly 3 includes a housing 31, a vertical shaft 32 is symmetrically fixed in the housing 31, a clamping member 33 is rotatably connected to the outer surface of the vertical shaft 32, opposite ends of the two clamping members 33 are rotatably connected with connecting rods 34, the left ends of the two connecting rods 34 are rotatably connected with a second threaded block 35, the inner threads of the second threaded block 35 are connected with a second threaded rod 36, the left end of the second threaded rod 36 penetrates the left side of the housing 31, a connecting block 38 is fixed on the left side of the housing 31, a 39-limiting groove is formed on the rear surface of the connecting block 38, the front end of a clamping rod 209 is located in the limiting groove 39, the connecting block 38 is clamped with a connecting groove 204, the left end of the second threaded rod 36 is provided with an interface 37, the interface 37 is clamped with an inserting block 203, a fixing rod 310 is fixed on the lower surface of the clamping member 33, a rubber sleeve 311 is sleeved on the outer surface of the fixing rod 310, when the second motor 202 in the fixing assembly 2 is opened, the second threaded rod 203 drives the second threaded rod 36 to rotate, so as to move the second threaded block 35, the second screw block 35 pushes the clamp 33 to rotate and separate through the connecting rod 34, and the lip of the patient can be spread through the rubber sleeve 311 placed at the mouth of the patient.

Further, the fixing member 17 is of a T-shaped configuration so that the fixing member 17 does not disengage from the trigger.

Furthermore, the handle 14 is a U-shaped structure, which is convenient for a person to hold.

Furthermore, the left end and the right end of the connecting rod 8 are both arc-shaped structures, so that the connecting rod 8 cannot be obstructed during movement.

Further, the rear end of the main gear 207 extends to the rear of the block 201, and the exposed main gear 207 can be conveniently rotated by fingers of a person.

Further, the outer surface of the sliding rod 22 is attached to the inner surface of the sleeve 23, so that the sliding rod 22 does not shake when sliding inside the sleeve 23.

Further, one side of the extruding block 25 close to the blocking block 26 is of an inclined plane structure, so that the extruding block 25 can push the blocking block 26 to move when the blocking block 26 is extruded.

Further, the rubber sleeve 311 is made of medical silica gel, so that the health of the patient can be safely protected, and the corner of the mouth of the patient can be prevented from being damaged.

In conclusion, the working process of the invention is as follows: firstly, a first motor 5 is started to enable a first threaded rod 6 to rotate, a first threaded block 7 is threaded to descend to drive a connecting rod 8 to rotate, the connecting rod 8 pulls a rotating rod 9 to rotate, the distance between two opening components 3 is opened, the head of a patient is convenient to place, after the head of the patient is placed between two electric telescopic rods 10, the first motor 5 is controlled to rotate reversely, then under the pushing of the connecting rod 8, the two opening components 3 are relatively close to each other, meanwhile, the distance position is controlled through the expansion and contraction of the electric telescopic rods 10, four rubber sleeves 311 can enter the mouth of the patient to be in contact with the inner wall of the lips, when a second motor 202 is started to be opened, a second threaded rod 36 is driven to rotate through an inserting block 203, a second threaded block 35 is moved, the second threaded block 35 pushes a clamping piece 33 through a connecting rod 34 to rotate and separate, the lips of the patient can be unfolded through the rubber sleeves 311 placed at the mouth of the patient, after the lips of the patient are unfolded by the opening components 3, then the motor I5 rotates to slowly separate the two opening components 3, the mouth of the patient is enlarged, when the two opening components 3 are separated, a medical worker presses the trigger 15 to enable the pull rope 19 to pull the pull rod 24, the pull rod 24 drives the extrusion block 25, the clamping block 26 loses the limit of the extrusion block 25, the clamping block 26 retracts and is separated from the clamping groove 29 under the pushing of the spring II 28, after the limiting and fixing of the clamping groove 29 and the clamping block 26 is lost, the medical worker can adjust the angles of the fixing component 2 and the opening components 3 when the electric telescopic rod 10 rotates and opens through holding the handle 14 to enable the opening components 3 to be horizontal or to keep the angle matched with the face of the patient, after the angle is adjusted, the medical worker loosens the trigger 15, the spring I27 pushes the extrusion block 25 to push the clamping block 26, the clamping block 26 is clamped into the corresponding clamping groove 29, the sliding rod 22 is fixed with the sleeve 23, and the fixing component 2 cannot rotate, after the angle adjustment is completed, the oral cavity operation can be performed, when the operation is finished, the medical staff takes down the rubber sleeve 311 for replacement, when the opening component 3 needs to be maintained or replaced, the medical staff can rotate the exposed main gear 207 by fingers, the main gear 207 drives the pinion 208 to rotate, the clamping rod 209 rotates to be received inside the long groove 205 and is separated from the opening component 3, and at the moment, the opening component 3 is pulled, so that the opening component 3 and the fixed component 2 can be detached.

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.

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 adjustable orolip spreading device for a dentist, comprising a platform (1), characterized in that: the utility model discloses a platform, including platform (1), fixed axle (4), bull stick (9) is connected with in the surface rotation of fixed axle (4), platform (1) lower surface inlays and is equipped with motor one (5), motor one (5) output shaft bottom is fixed with threaded rod one (6), threaded rod one (6) surface threaded connection has screw block one (7), both ends are all connected with connecting rod (8) in the rotation of screw block one (7) about, the one end that connecting rod (8) kept away from screw block one (7) with bull stick (9) bottom rotation is connected, electric telescopic handle (10) top rotation is connected with U type spare one (11), U type spare one (11) top is fixed with fixed subassembly (2), two the opening subassembly (3) is all dismantled to the looks remote site of fixed subassembly (2), electric telescopic handle (10) surface fixation has U type spare two (12), two fixed subassembly (2) all are fixed with handle (14) on the back of the body side mutually, handle (14) inside is equipped with trigger (15), two trigger (15) back of the body side mutually all sets up recess (16), recess (16) inside sliding connection has mounting (17), two mounting (17) back of the body end respectively with two handle (14) internal surface fixed connection, handle (14) lower surface fixed has rope pipe (18), rope pipe (18) inside wears to be equipped with stay cord (19), stay cord (19) top run through to inside handle (14), and with trigger (15) lower surface fixed connection, fixed subassembly (2) lower surface fixed has U type spare three (20), rope pipe (18) bottom extends to inside U type spare three (20), the inside front and back surface of U type spare three (20) all is connected with to change and detains (21), two be fixed with slide bar (22) between commentaries on classics knot (21), slide bar (22) inside is equipped with pull rod (24), pull rod (24) top is run through to slide bar (22) top, and with stay cord (19) bottom fixed connection, pull rod (24) surface cover is equipped with sleeve (23), pull rod (24) bottom fixed has crowded piece (25), pull rod (24) surface is located inside is equipped with spring one (27) in slide bar (22), spring one (27) top with slide bar (22) internal surface fixed connection, spring one (27) bottom with crowded piece (25) top fixed connection, inside being located of slide bar (22) crowded piece (25) below is equipped with fixture block (26), fixture block (26) surface cover is equipped with spring two (28), spring two (28) left end with slide bar (22) internal surface fixed connection, spring two (28) right-hand member with fixture block (26) surface fixed connection, a plurality of draw-in grooves (29) have been seted up to the inside left side of sleeve (23), fixture block (26) bottom run through to inside draw-in groove (29), platform (1) lower fixed surface has four landing legs (13), four landing leg (13) are the rectangle and distribute.

2. The adjustable orolip spreading device for a dentist according to claim 1 wherein: the fixing component (2) comprises a block body (201), a second motor (202) is embedded on one side, away from the handle (14), of the block body (201), an inserting block (203) is fixed on one end, away from the block body (201), of an output shaft of the second motor (202), a connecting groove (204) is formed in one side, away from the handle (14), of the block body (201) and located above the second motor (202), a long groove (205) is formed in the rear surface of the inside of the connecting groove (204), a pinion (208) is rotatably connected to the inside of the long groove (205), a through groove (206) is formed in the rear surface of the inside of the long groove (205), the rear end of the through groove (206) extends to the rear surface of the block body (201), a main gear (207) is rotatably connected to the inside of the through groove (206), the front end of the main gear (207) is meshed with the rear end of the pinion (208), and a clamping rod (209) is fixed on the upper surface of the pinion (208), and a third spring (210) is fixed between the clamping rod (209) and the inner rear surface of the long groove (205).

3. The adjustable orolip spreading device for a dentist according to claim 1 wherein: the opening component (3) comprises a shell (31), a vertical shaft (32) is symmetrically and fixedly arranged in the shell (31), a clamping piece (33) is rotatably connected to the outer surface of the vertical shaft (32), two opposite ends of the clamping piece (33) are rotatably connected with a connecting rod (34), the left end of the connecting rod (34) is rotatably connected with a second threaded block (35) together, a second threaded rod (36) is connected to the inner side of the second threaded block (35) in a threaded manner, the left end of the second threaded rod (36) penetrates through the left side of the shell (31), a connecting block (38) is fixedly arranged on the left side of the shell (31), a limiting groove (39) is formed in the rear surface of the connecting block (38), the front end of a clamping rod (209) is located in the limiting groove (39), the connecting block (38) is clamped with the connecting groove (204), and an interface (37) is formed in the left end of the second threaded rod (36), interface (37) with inserted block (203) joint, folder (33) lower fixed surface has dead lever (310), dead lever (310) surface cover is equipped with gum cover (311).

4. The adjustable orolip spreading device for a dentist according to claim 1 wherein: the fixing piece (17) is of a T-shaped structure.

5. The adjustable orolip spreading device for a dentist according to claim 1 wherein: the handle (14) is of a U-shaped structure.

6. The adjustable orolip spreading device for a dentist according to claim 1 wherein: the left end and the right end of the connecting rod (8) are both arc-shaped structures.

7. The adjustable orolip spreading device for use by a dentist according to claim 2 wherein: the rear end of the main gear (207) extends to the rear of the block (201).

8. The adjustable orolip spreading device for a dentist according to claim 1 wherein: the outer surface of the sliding rod (22) is attached to the inner surface of the sleeve (23).

9. The adjustable orolip spreading device for a dentist according to claim 1 wherein: one side of the extrusion block (25) close to the clamping block (26) is of an inclined plane structure.

10. The adjustable orolip spreading device for use by a dentist according to claim 3 wherein: the rubber sleeve (311) is made of medical silica gel.