阅读说明：本技术 一种用于胃镜的牙撑 (Tooth support for gastroscope ) 是由 曹建国 于 2021-07-27 设计创作，主要内容包括：本发明涉及一种用于胃镜的牙撑,包括第一支撑板、第二支撑板、支撑机构和固定机构,所述支撑机构包括支撑组件和调节组件,所述固定机构包括移动组件和固定组件,该用于胃镜的牙撑通过支撑机构实现对牙齿的弹性支撑,这里通过调节单元实现对第一支撑板和第二支撑板之间距离的调节,使得使用者的牙齿处于自身相对舒适的位置,提高使用者的舒适性,这里通过固定机构实现对主体的限位,防止主体在使用者的口腔内晃动,从而减少使用者唾液的分泌,并且这里通过第一支撑板和第二支撑板还能实现对主体的保护,防止使用者在闭合牙齿时,咬伤主体,延长主体的使用寿命,并且这里通过调节单元还能实现对固定组件的清洁,提高了使用的实用性。(The invention relates to a dental brace for gastroscope, which comprises a first support plate, a second support plate, a support mechanism and a fixing mechanism, wherein the support mechanism comprises a support component and an adjusting component, the fixing mechanism comprises a moving component and a fixing component, the dental brace for gastroscope realizes elastic support of teeth through the support mechanism, the adjusting unit realizes adjustment of the distance between the first support plate and the second support plate, so that the teeth of a user are in a relatively comfortable position, the comfort of the user is improved, the fixing mechanism realizes limit of the main body, the main body is prevented from shaking in the oral cavity of the user, the secretion of saliva of the user is reduced, the first support plate and the second support plate can also realize protection of the main body, the user is prevented from biting the main body when closing the teeth, the service life of the main body is prolonged, and here can also realize the cleanness to fixed subassembly through the adjusting unit, improved the practicality of using.)

1. The dental support for the gastroscope is characterized by comprising a first support plate (1), a second support plate (2), a support mechanism and a fixing mechanism, wherein the first support plate (1) is horizontally arranged, the second support plate (2) is horizontally arranged above the first support plate (1), the first support plate (1) and the first support plate (1) are arranged oppositely, and the support mechanism and the fixing mechanism are arranged between the first support plate (1) and the second support plate (2);

the supporting mechanism comprises supporting components and adjusting components, the supporting components comprise connecting pipes (21) and supporting units, the connecting pipes (21) are horizontally arranged, the number of the supporting units is two, the two supporting units are respectively arranged at two ends of the connecting pipes (21), the supporting units are located between a first supporting plate (1) and a second supporting plate (2), the supporting units comprise piston cylinders (3), first springs (4) and connecting units, the piston cylinders (3) are vertically arranged above the first supporting plate (1), and the first springs (4) are vertically arranged in the piston cylinders (3);

the two connecting units are respectively arranged at the two ends above the piston cylinder (3), the connecting unit comprises a sealing block (5) and a connecting rod (6), the sealing block (5) is arranged in the piston cylinder (3), the connecting rod (6) is arranged between the top end of the piston cylinder (3) and the second supporting plate (2), one end of the connecting rod (6) is connected with the second supporting plate (2), the other end of the connecting rod (6) extends into the piston cylinder (3) and is connected with the sealing block (5), the connecting rod (6) is connected with the piston cylinder (3) in a sliding way through a sealing block (5), two ends of the first spring (4) are respectively connected with a sealing block (5), the connecting pipe (21) is communicated with the interior of the piston cylinder (3), and the connecting pipe (21) is positioned between the two sealing blocks (5);

the adjusting assembly comprises a communicating pipe (7), a one-way valve (8), an air bag (9) and an adjusting unit, the air bag (9) is arranged on one side of the piston cylinder (3), the communicating pipe (7) is arranged between the air bag (9) and a connecting pipe (21), one end of the communicating pipe (7) is communicated with the air bag (9), the other end of the communicating pipe (7) is communicated with the middle of the connecting pipe (21), the one-way valve (8) is arranged in one end, away from the connecting pipe (21), of the communicating pipe (7), a through hole is formed in the air bag (9), the adjusting unit is arranged in the connecting pipe (21), and the adjusting unit is arranged right opposite to the communicating pipe (7);

the fixing mechanisms are arranged on two sides of the communicating pipe (7) respectively, the two fixing mechanisms are arranged symmetrically about the center of the connecting pipe (21), the two fixing mechanisms are arranged oppositely, the fixing mechanisms comprise moving assemblies and fixing assemblies, the moving assemblies are arranged on the connecting pipe (21), and the fixing assemblies are arranged on the moving assemblies.

2. The dental brace for a gastroscope according to claim 1, characterized in that, the adjusting unit comprises a ball (10), a second spring (11), a gas leakage plate (12) and a gas guide rod (13), the gas guide rod (13) is vertically arranged on the inner wall of the connecting pipe (21), the gas guide rod (13) is arranged in a hollow way, one end of the gas guide rod (13) close to the communicating pipe (7) is provided with an opening, the ball (10) is arranged at the opening, the gas leakage plate (12) is arranged at the bottom end of the gas guide rod (13), the second spring (11) is arranged in the gas guide rod (13), the second spring (11) is arranged between the ball (10) and the gas leakage plate (12), one end of the second spring (11) is connected with the ball (10), and the other end of the second spring (11) is connected with the gas leakage plate (12).

3. The dental brace for a gastroscope according to claim 1, wherein the moving component comprises a moving ring (14), two elastic cords (15) and a magnet (16), the moving ring (14) is sleeved on the connecting pipe (21), the moving ring (14) is connected with the connecting pipe in a sliding manner, the two elastic cords (15) are respectively arranged at two sides of the connecting pipe (21), the elastic cords (15) are positioned between the moving ring (14) and the piston cylinder (3), one end of each elastic cord (15) is connected with the moving ring (14), the other end of each elastic cord (15) is connected with the piston cylinder (3), the magnet (16) is arranged at one end of the moving ring (14) far away from the elastic cords (15), and the two magnets (16) in the two moving components attract each other.

4. The dental brace for a gastroscope according to claim 3, characterized in that the fixing assembly comprises a fixing plate (17), a connecting piece (18) and a roller (19), the fixing plate (17) is vertically arranged below the moving ring (14), the roller (19) is arranged at one side of the fixing plate (17), the connecting piece (18) is arranged between the roller (19) and the fixing plate (17), the roller (19) is connected with the fixing plate (17) through the connecting piece (18), and the two rollers (19) in the two fixing assemblies are arranged oppositely.

5. The dental brace for a gastroscope according to claim 3, characterized in that the connecting tube (21) is provided with a positioning strip (20), the moving ring (14) is provided with a strip-shaped sliding groove, the positioning strip (20) is positioned in the sliding groove, and the moving ring (14) is connected with the connecting tube (21) in a sliding manner through the positioning strip (20).

6. The dental brace for a gastroscope according to claim 1, characterized in that the first support plate (1) and the second support plate (2) are both arc-shaped plates, and an arc-shaped abutting groove is respectively arranged on the first support plate (1) and the second support plate (2).

Technical Field

The invention particularly relates to a dental brace for a gastroscope.

Background

As is known, a gastroscope is a medical examination method which is inserted into the stomach of a patient through a thin and flexible tube, and a doctor can view the pathological changes of the esophagus, the stomach and the duodenum of the patient through a camera arranged at the head of the tube and a display.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: in order to overcome the defects of the prior art, the tooth support for the gastroscope is provided.

The technical scheme adopted by the invention for solving the technical problems is as follows: a dental brace for a gastroscope comprises a first support plate, a second support plate, a support mechanism and a fixing mechanism, wherein the first support plate is horizontally arranged, the second support plate is horizontally arranged above the first support plate, the first support plate and the first support plate are arranged in a right-to-right mode, and the support mechanism and the fixing mechanism are arranged between the first support plate and the second support plate;

the supporting mechanism comprises a supporting assembly and an adjusting assembly, the supporting assembly comprises a connecting pipe and two supporting units, the connecting pipe is horizontally arranged, the two supporting units are respectively arranged at two ends of the connecting pipe, the supporting units are positioned between a first supporting plate and a second supporting plate, each supporting unit comprises a piston cylinder, a first spring and a connecting unit, the piston cylinder is vertically arranged above the first supporting plate, and the first spring is vertically arranged in the piston cylinder;

the two connecting units are respectively arranged at two ends above the piston cylinder and comprise sealing blocks and connecting rods, the sealing blocks are arranged in the piston cylinder, the connecting rods are arranged between the top end of the piston cylinder and the second supporting plate, one end of each connecting rod is connected with the second supporting plate, the other end of each connecting rod extends into the piston cylinder and is connected with the sealing blocks, the connecting rods are connected with the piston cylinder in a sliding mode through the sealing blocks, the two ends of the first spring are respectively connected with one sealing block, the connecting pipes are communicated with the interior of the piston cylinder, and the connecting pipes are located between the two sealing blocks;

the adjusting assembly comprises a communicating pipe, a one-way valve, an air bag and an adjusting unit, the air bag is arranged on one side of the piston cylinder, the communicating pipe is arranged between the air bag and the connecting pipe, one end of the communicating pipe is communicated with the air bag, the other end of the communicating pipe is communicated with the middle part of the connecting pipe, the one-way valve is arranged in one end of the communicating pipe, which is far away from the connecting pipe, a through hole is formed in the air bag, the adjusting unit is arranged in the connecting pipe, and the adjusting unit is arranged right opposite to the communicating pipe;

the fixing mechanisms are arranged on two sides of the communicating pipe respectively, the two fixing mechanisms are arranged symmetrically about the center of the connecting pipe and are arranged oppositely, the fixing mechanisms comprise moving assemblies and fixing assemblies, the moving assemblies are arranged on the connecting pipe, and the fixing assemblies are arranged on the moving assemblies.

In order to realize the regulation to the distance between first backup pad and the second backup pad, the regulating unit includes ball, second spring, gas leakage board and leads the gas pole, lead the vertical setting of gas pole on the inner wall of connecting pipe, lead gas pole cavity setting, the one end that leads the gas pole and be close to communicating pipe is equipped with the opening, the ball is located the opening part, the gas leakage board sets up the bottom at leading the gas pole, the second spring sets up in leading the gas pole, the second spring is located between ball and the gas leakage board, the one end and the ball of second spring are connected, the other end and the gas leakage board of second spring are connected.

In order to realize the reply to the shift ring, the removal subassembly includes shift ring, stretch cord and magnet, the shift ring cover is established on the connecting pipe, shift ring and go-between sliding connection, the stretch cord has two, and two stretch cords set up respectively in the both sides of connecting pipe, the stretch cord is located between shift ring and the piston cylinder, the one end and the shift ring of stretch cord are connected, the other end and the piston cylinder of stretch cord are connected, magnet setting is kept away from the one end of stretch cord at the shift ring, and two magnets in two removal subassemblies are inhaled mutually.

In order to realize the fixing of the main body, the fixing assembly comprises a fixing plate, a connecting piece and a roller, the fixing plate is vertically arranged below the moving ring, the roller is arranged on one side of the fixing plate, the connecting piece is arranged between the roller and the fixing plate, the roller is connected with the fixing plate through the connecting piece, and the two rollers in the two fixing assemblies are just opposite to each other.

In order to realize the location to the shift ring, prevent the rotation of shift ring, be equipped with the location strip on the connecting pipe, be equipped with the bar sliding tray on the shift ring, the location strip is located the sliding tray, the shift ring passes through location strip and connecting pipe sliding connection.

In order to enable the first supporting plate and the second supporting plate to be better abutted to teeth, the first supporting plate and the second supporting plate are both arc-shaped plates, and arc-shaped abutting grooves are respectively formed in the first supporting plate and the second supporting plate.

The tooth support for the gastroscope has the advantages that the tooth support for the gastroscope realizes elastic support of teeth through the support mechanism, the adjustment of the distance between the first support plate and the second support plate is realized through the adjusting unit, so that the teeth of a user are in a relatively comfortable position, the comfort of the user is improved, the position limitation of the main body is realized through the fixing mechanism, the main body is prevented from shaking in the oral cavity of the user, the secretion of saliva of the user is reduced, the main body can be protected through the first support plate and the second support plate, the main body is prevented from being bitten by the user when the teeth are closed, the service life of the main body is prolonged, the cleaning of the fixing component can be realized through the adjusting unit, and the use practicability is improved.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic view of the construction of a brace for a gastroscope of the present invention;

FIG. 2 is a schematic view showing a coupling structure of a temple connection tube, a check valve, a balloon and a supporting unit for a gastroscope according to the present invention;

FIG. 3 is a schematic view showing a coupling structure of a temple coupling tube and an adjusting unit for a gastroscope according to the present invention;

FIG. 4 is an enlarged view of portion A of FIG. 1;

FIG. 5 is a schematic view of the construction of a first support plate of the dental brace for a gastroscope of the present invention;

in the figure: 1. the air leakage protection device comprises a first support plate, 2, a second support plate, 3, a piston cylinder, 4, a first spring, 5, a sealing block, 6, a connecting rod, 7, a communicating pipe, 8, a one-way valve, 9, an air bag, 10, a ball, 11, a second spring, 12, an air leakage plate, 13, an air guide rod, 14, a moving ring, 15, an elastic rope, 16, a magnet, 17, a fixing plate, 18, a connecting piece, 19, a roller, 20, a positioning strip and 21, a connecting pipe.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

As shown in fig. 1-2, a dental brace for gastroscope comprises a first support plate 1, a second support plate 2, a support mechanism and a fixing mechanism, wherein the first support plate 1 is horizontally arranged, the second support plate 2 is horizontally arranged above the first support plate 1, the first support plate 1 and the first support plate 1 are oppositely arranged, and the support mechanism and the fixing mechanism are both arranged between the first support plate 1 and the second support plate 2;

the supporting mechanism comprises a supporting assembly and an adjusting assembly, the supporting assembly comprises a connecting pipe 21 and two supporting units, the connecting pipe 21 is horizontally arranged, the two supporting units are respectively arranged at two ends of the connecting pipe 21, the supporting units are positioned between a first supporting plate 1 and a second supporting plate 2, each supporting unit comprises a piston cylinder 3, a first spring 4 and a connecting unit, the piston cylinder 3 is vertically arranged above the first supporting plate 1, and the first spring 4 is vertically arranged in the piston cylinder 3;

the two connecting units are respectively arranged at two ends above the piston cylinder 3 and comprise sealing blocks 5 and connecting rods 6, the sealing blocks 5 are arranged in the piston cylinder 3, the connecting rods 6 are arranged between the top end of the piston cylinder 3 and the second supporting plate 2, one ends of the connecting rods 6 are connected with the second supporting plate 2, the other ends of the connecting rods 6 extend into the piston cylinder 3 and are connected with the sealing blocks 5, the connecting rods 6 are connected with the piston cylinder 3 in a sliding mode through the sealing blocks 5, two ends of the first spring 4 are respectively connected with one sealing block 5, the connecting pipe 21 is communicated with the interior of the piston cylinder 3, and the connecting pipe 21 is located between the two sealing blocks 5;

the adjusting assembly comprises a communicating pipe 7, a one-way valve 8, an air bag 9 and an adjusting unit, the air bag 9 is arranged on one side of the piston cylinder 3, the communicating pipe 7 is arranged between the air bag 9 and a connecting pipe 21, one end of the communicating pipe 7 is communicated with the air bag 9, the other end of the communicating pipe 7 is communicated with the middle part of the connecting pipe 21, the one-way valve 8 is arranged in one end, away from the connecting pipe 21, of the communicating pipe 7, a through hole is formed in the air bag 9, the adjusting unit is arranged in the connecting pipe 21, and the adjusting unit is over against the communicating pipe 7;

the fixing mechanisms are arranged on two sides of the communicating pipe 7 respectively, the two fixing mechanisms are arranged symmetrically about the center of the connecting pipe 21, the two fixing mechanisms are arranged oppositely, the fixing mechanisms comprise moving assemblies and fixing assemblies, the moving assemblies are arranged on the connecting pipe 21, and the fixing assemblies are arranged on the moving assemblies.

When the stomach of the user needs to be checked, the first support plate 1 is pushed first, so that the first support plate 1 moves towards the second support plate 2, the first support plate 1 moves to drive the connecting rod 6 to move, the connecting rod 6 drives the sealing block 5 to move, so that the sealing plates slide in the piston cylinder 3, so that the distance between the two sealing plates gradually decreases, the first spring 4 is in a compressed state, a cavity is formed between the two sealing blocks 5 and the connecting pipe 21, because the piston cylinder 3 is connected through the connecting pipe 21, and the connecting pipe 21 is connected through the adjusting unit, and the ventilation of the cavity is realized through the adjusting unit, so that the movement of the sealing block 5 is not influenced, the device is placed in the mouth of the user, then the first support plate 1 and the second support plate 2 are abutted through teeth, and then the air bag 9 is squeezed, make the inside air of gasbag 9 flow into in connecting pipe 21 through communicating pipe 7, then in getting into piston cylinder 3, be located the inside check valve 8 of communicating pipe 7 here, only the inside air of gasbag 9 flows towards the direction of connecting pipe 21, and the inside air that is located connecting pipe 21 can not enter into to gasbag 9 through check valve 8, here through the better realization of the restoring force of first spring 4 to the reply of seal block 5, and can also realize the elastic support to the tooth, realize the protection to the tooth, the practicality of use has been improved, gasbag 9 here holds in user's hand, make user's tooth be in the position that self is comfortable relatively, user's travelling comfort improves.

As shown in fig. 3-4, in order to realize the adjustment of the distance between the first support plate 1 and the second support plate 2, the adjusting unit includes a ball 10, a second spring 11, an air leakage plate 12 and an air guide rod 13, the air guide rod 13 is vertically disposed on the inner wall of the connecting pipe 21, the air guide rod 13 is hollow, an opening is disposed at one end of the air guide rod 13 close to the communicating pipe 7, the ball 10 is located at the opening, the air leakage plate 12 is disposed at the bottom end of the air guide rod 13, the second spring 11 is disposed in the air guide rod 13, the second spring 11 is located between the ball 10 and the air leakage plate 12, one end of the second spring 11 is connected with the ball 10, and the other end of the second spring 11 is connected with the air leakage plate 12.

In order to realize the return of the moving ring 14, the moving assembly comprises a moving ring 14, two elastic ropes 15 and a magnet 16, the moving ring 14 is sleeved on the connecting pipe 21, the moving ring 14 is connected with the connecting ring in a sliding manner, the two elastic ropes 15 are arranged on two sides of the connecting pipe 21 respectively, the elastic ropes 15 are located between the moving ring 14 and the piston cylinder 3, one end of each elastic rope 15 is connected with the moving ring 14, the other end of each elastic rope 15 is connected with the piston cylinder 3, the magnet 16 is arranged at one end, far away from the elastic ropes 15, of the moving ring 14, and the two magnets 16 in the two moving assemblies attract each other.

In order to realize the fixation of the main body, the fixing assembly comprises a fixing plate 17, a connecting piece 18 and a roller 19, the fixing plate 17 is vertically arranged below the moving ring 14, the roller 19 is arranged on one side of the fixing plate 17, the connecting piece 18 is arranged between the roller 19 and the fixing plate 17, the roller 19 is connected with the fixing plate 17 through the connecting piece 18, and the two rollers 19 in the two fixing assemblies are arranged just opposite to each other.

In order to realize the positioning of the moving ring 14 and prevent the moving ring 14 from rotating, a positioning strip 20 is arranged on the connecting pipe 21, a strip-shaped sliding groove is arranged on the moving ring 14, the positioning strip 20 is positioned in the sliding groove, and the moving ring 14 is connected with the connecting pipe 21 in a sliding manner through the positioning strip 20.

Here, when the first support plate 1 moves toward the second support plate 2, the pressure inside the cavity becomes large, thereby achieving the pushing of the balls 10, so that the air inside the connection pipe 21 flows out through the adjusting unit, thereby achieving the exhausting of the air inside the cavity.

Here, the main body is placed under the control of a user, then the moving ring 14 is moved, the moving ring 14 drives the magnet 16 to move, the limit of the moving ring 14 is realized by the suction force of the magnet 16, meanwhile, the moving ring 14 moves to drive the fixing plate 17 to move, the fixing plate 17 drives the connecting piece 18 to move, the connecting piece 18 realizes the movement of the roller 19, the limit of the main body is realized by the roller 19, the main body is prevented from shaking in the oral cavity of the user, the secretion of saliva of the user is reduced, at this time, the movement of the main body can be realized, the main body is moved to a preset position, at this time, the elastic rope 15 is in a stretching state, and the protection of the main body can also be realized by the first support plate 1 and the second support plate 2, the user is prevented from biting the main body when the teeth are closed, the service life of the main body is prolonged, when the device is required to be cleaned after the use is finished, the two moving rings 14 are now held in place by two magnets 16, so that the cleaning effect is increased by the air flow from the adjusting unit when the first support plate 1 is pushed in the direction of the second support plate 2.

As shown in fig. 5, in order to make the first supporting plate 1 and the second supporting plate 2 better abut against the teeth, the first supporting plate 1 and the second supporting plate 2 are both arc-shaped plates, and an arc-shaped abutting groove is respectively arranged on the first supporting plate 1 and the second supporting plate 2.

Here, the abutment grooves provided on the first support plate 1 and the second support plate 2 allow the teeth of the user to better abut against the first support plate 1 and the second support plate 2.

When the stomach of the user needs to be checked, the first support plate 1 is pushed first, so that the first support plate 1 moves towards the second support plate 2, the first support plate 1 moves to drive the connecting rod 6 to move, the connecting rod 6 drives the sealing block 5 to move, so that the sealing plates slide in the piston cylinder 3, so that the distance between the two sealing plates gradually decreases, the first spring 4 is in a compressed state, a cavity is formed between the two sealing blocks 5 and the connecting pipe 21, because the piston cylinder 3 is connected through the connecting pipe 21, and the connecting pipe 21 is connected through the adjusting unit, and the ventilation of the cavity is realized through the adjusting unit, so that the movement of the sealing block 5 is not influenced, the device is placed in the mouth of the user, then the first support plate 1 and the second support plate 2 are abutted through teeth, and then the air bag 9 is squeezed, make the inside air of gasbag 9 flow into in connecting pipe 21 through communicating pipe 7, then in getting into piston cylinder 3, be located the inside check valve 8 of communicating pipe 7 here, only the inside air of gasbag 9 flows towards the direction of connecting pipe 21, and the inside air that is located connecting pipe 21 can not enter into to gasbag 9 through check valve 8, here through the better realization of the restoring force of first spring 4 to the reply of seal block 5, and can also realize the elastic support to the tooth, realize the protection to the tooth, the practicality of use has been improved, gasbag 9 here holds in user's hand, make user's tooth be in the position that self is comfortable relatively, user's travelling comfort improves.

Here, when the first support plate 1 moves toward the second support plate 2, the pressure inside the cavity becomes large, thereby achieving the pushing of the balls 10, so that the air inside the connection pipe 21 flows out through the adjusting unit, thereby achieving the exhausting of the air inside the cavity.

Here, the main body is placed under the control of a user, then the moving ring 14 is moved, the moving ring 14 drives the magnet 16 to move, the limit of the moving ring 14 is realized by the suction force of the magnet 16, meanwhile, the moving ring 14 moves to drive the fixing plate 17 to move, the fixing plate 17 drives the connecting piece 18 to move, the connecting piece 18 realizes the movement of the roller 19, the limit of the main body is realized by the roller 19, the main body is prevented from shaking in the oral cavity of the user, the secretion of saliva of the user is reduced, at this time, the movement of the main body can be realized, the main body is moved to a preset position, at this time, the elastic rope 15 is in a stretching state, and the protection of the main body can also be realized by the first support plate 1 and the second support plate 2, the user is prevented from biting the main body when the teeth are closed, the service life of the main body is prolonged, when the device is required to be cleaned after the use is finished, the two moving rings 14 are now held in place by two magnets 16, so that the cleaning effect is increased by the air flow from the adjusting unit when the first support plate 1 is pushed in the direction of the second support plate 2.

Here, the abutment grooves provided on the first support plate 1 and the second support plate 2 allow the teeth of the user to better abut against the first support plate 1 and the second support plate 2.

Compared with the prior art, this a braces for gastroscope passes through supporting mechanism and realizes the elastic support to the tooth, here realize the regulation to the distance between first backup pad 1 and the second backup pad 2 through the regulating unit, make user's tooth be in self position comfortable relatively, improve user's travelling comfort, here realize spacing to the main part through fixed establishment, prevent that the main part from rocking in user's oral cavity, thereby reduce the secretion of user's saliva, and here can also realize the protection to the main part through first backup pad 1 and second backup pad 2, prevent that the user from when closed tooth, bite the main part, prolong the life of main part, and here can also realize the cleanness to fixed subassembly through the regulating unit, the practicality of use has been improved.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.