43 results about "Tongue tip" patented technology

The invention relates to the technical field of image detection, and particularly discloses a tongue image attitude correction and integrity detection method and system based on key point detection, and the method comprises the basic steps: firstly obtaining and processing a tongue image containing various kinds of information, constructing a neural network model for evaluation training, carrying out the transfer learning through a pre-training model, and optimizing the speed; the posture, integrity and accuracy are judged according to the positions of the tongue tip and the tongue root and the anatomical relation, a user is reminded of adjustment for detection abnormity, and if multiple failures occur, suggestions are automatically adjusted, and shooting is assisted. In the aspect of data processing, polymorphic tongue images are collected, enhanced and normalized, and the generalization ability of the model is enhanced. The network architecture is fused with ResNet and Transform, and the key points are accurately positioned. Performance is improved, real-time performance is guaranteed, accurate judgment is carried out according to the tongue tip position relation through scientific posture and integrity detection logic, and image quality is guaranteed. Clear prompt and auxiliary adjustment can be provided, tongue picture image acquisition is more efficient and accurate, and development of an intelligent traditional Chinese medicine tongue diagnosis technology is powerfully promoted.

The present invention relates to the technical field of rehabilitation devices, and particularly relates to a rehabilitation device for dysphagia, which includes a support mechanism for supporting the whole device. A fixing ring is installed on the support mechanism, and a swinging rod is rotatably installed on the fixing ring. A swinging mechanism is installed on the fixing ring, and the swinging mechanism is used to drive the swinging rod to swing left and right around the rotating shaft; one end of the swinging rod is connected to a negative pressure tube and is internally communicated. A suction nozzle is installed at the end of the negative pressure tube far away from the swinging rod; a liquid storage tank is fixedly sleeved on the negative pressure tube; a partition plate that divides the interior of the liquid storage tank into two spaces is installed in the liquid storage tank, and a plurality of temperature adjustment mechanisms are embedded in the partition plate. The temperature adjustment mechanisms release the heat and cold generated by them into the two spaces in the liquid storage tank respectively. This device directly uses pressurized hot and cold liquids to change the shape of the suction nozzle at the front end, so that the device can not only fix the tongue tip by negative pressure for tongue extension training, but also perform hot and cold stimulation on the target area of the patient's oral cavity.

The efficient dysarthria correction device comprises a base, a tongue pressing piece and an air bag, the tongue pressing piece is movably connected to the front end of the base, the outer side of the base is connected with an air bag controller, the air bag is arranged at the rear end of the base, and the air bag controller is electrically connected with the air bag through one side of the base. The tongue pressing piece comprises tongue pressing belts and tongue pressing buckles, the two tongue pressing belts are connected through the tongue pressing buckles, sliding grooves are formed in the inner side of the base, sliding blocks matched with the sliding grooves are further arranged on the two sides of the tongue pressing belts, locking buckles are further arranged on the sliding blocks, the base is fixed to teeth, and the tongue pressing piece, the soft palate support and the air bag are used for assisting control and movement of the tongue and the soft palate. The device can be used for correcting various pronunciation errors of lingual face sound, tongue tip sound and tongue root sound, the base can be telescopically deformed according to tooth conditions and can be placed and attached to teeth of different people, and the tongue pressing piece can be automatically adjusted according to different oral cavity widths, so that the device is more practical.

The invention relates to the technical field of rehabilitation instruments, in particular to a dysphagia rehabilitation device which comprises a supporting mechanism for supporting the whole dysphagia rehabilitation device, a fixing ring is installed on the supporting mechanism, a swing rod is rotatably installed on the fixing ring, a swing mechanism is installed on the fixing ring, and the swing mechanism is used for driving the swing rod to swing left and right around a rotating shaft; one end of the oscillating rod is connected and internally communicated with the negative pressure pipe; a suction nozzle is mounted at the end part, far away from the oscillating rod, of the negative pressure pipe; the negative pressure pipe is fixedly sleeved with a liquid storage tank; a partition plate dividing the interior of the liquid storage tank into two spaces is installed in the liquid storage tank, a plurality of temperature adjusting mechanisms are embedded in the partition plate, and the temperature adjusting mechanisms release heat and cold generated by the temperature adjusting mechanisms into the two spaces in the liquid storage tank respectively. According to the device, pressurized cold and hot liquid is directly utilized to change the shape of the suction nozzle at the front end, so that the device not only can fix the tongue tip through negative pressure to perform tongue stretching training, but also can perform cold and hot stimulation on a target area of the oral cavity of a patient.

This utility model discloses a three-point tongue protrusion strength measurement and training device, specifically relating to the field of tongue muscle recovery training technology. It includes a head placement frame with a supporting base plate in the middle. A mandibular placement plate and the training device are located on the top of the supporting base plate. A positioning component is located on one side of the head placement frame, including a connecting side plate. An H-shaped slider is located in the middle of the connecting side plate, and an extension threaded rod, a limiting ring, and a mounting seat are located in the middle of the H-shaped slider. A mounting side plate and a sponge positioning block are located on the side of the mounting seat. This utility model uses the positioning component to position the patient's head, allowing the extension threaded rod to drive the sponge positioning block to contact the side of the patient's head, thus preventing head movement during training. Through tongue protrusion training and strength measurement based on three points—the midline of the tongue tip, the left and right anterior edges of the tongue—and the use of a digital control screen, it achieves visualized and real-time measurement of the active tongue protrusion training effect at different locations.

The invention discloses a digital human generation system and method based on a language model, and relates to the technical field of artificial intelligence. A complete digital human pronunciation modeling path from voice signal acquisition, formant frequency extraction, deviation analysis and pronunciation stability evaluation to motion compensation control and three-dimensional animation fusion is realized. Compared with the existing mode of driving the digital human pattern only based on energy envelope or mouth shape classification, the method has the advantages that the multi-frame formant frequency of the user voice is extracted and processed, so that the digital human can generate dynamic lingual surface and tongue tip actions according to the sound channel change in the real pronunciation process of the user; therefore, the physical correspondence and linguistic consistency of the pronunciation actions of the digital human are improved. According to the method, the direct mapping between the pronunciation characteristics and the three-dimensional tongue actions is realized, and the authenticity of the pronunciation animation of the digital human and the guidance in a teaching scene are remarkably improved.

The utility model discloses a group of tongue muscle function rehabilitation training device, including main body unit and adjusting unit, main body unit includes chin sleeve, chin sleeve one side is fixed with the sideboard, the inside of sideboard is provided with the rectangular groove, the inside of rectangular groove is slidingly connected with the rectangular cylinder, the inside of rectangular cylinder is slidingly connected with the support plate, the top of the support plate is fixed with the hollow hemispheroid. The patient pushes the first training bead through the tongue tip, so that the first training bead moves on the spiral column, the first training bead is pushed to the farthest position along the spiral column, and the function of the tongue muscle is exercised; the eight arc-shaped plates are arranged in the east direction, the south direction, the west direction, the north direction, the southeast direction, the northwest direction, the southwest direction and the northeast direction, the patient pushes the second training beads through the tongue tip and moves the second training beads in the directions of the eight arc-shaped plates, tongue muscle function training in the eight directions can be completed, and the patient can carry out pushing training in the corresponding direction in a targeted mode according to specific needs. And the tongue muscle function in a certain direction can be exercised in a targeted manner.

The utility model relates to the technical field of aerosol generation devices, in particular to an aerosol generation device with an air pressure sensor and an airflow detection assembly. The air pressure sensor is located on the outer side of the air channel and communicated with the air channel through the air pressure induction opening. As the protective tongue is arranged at the air pressure sensing port, the tongue root of the protective tongue is positioned on one side of the downstream of the air pressure sensing port and the tongue tip is positioned on the upstream of the tongue root in the airflow direction in the air channel when the aerosol is sucked, the protective tongue can play a role in protecting the air pressure sensing port when the aerosol is not sucked; aerosol in the gas channel is not easy to enter the air pressure sensing port, so that the air pressure sensor is not easy to damage.

To provide English teaching materials helping students intuitively acquire English pronunciation.SOLUTION: There is provided an English teaching material comprising a position identification member and a plurality of vowel cards. The position identification member includes a bimaxillary display for roughly representing a lateral cross-section of both jaws of a person, and a plurality of identifiers for respectively identifying a plurality of positions of a tip of the tongue during pronunciation. The plurality of vowel cards are each assigned to a different English vowel. The plurality of vowel cards have, on each one side, a face symbol imitating a human face and one or two of a plurality of identification displays. The face display includes a mouth shape diagram for graphically representing the mouth shape when pronouncing the corresponding vowel. The plurality of identification displays respectively have the same form as any of the plurality of identifiers.SELECTED DRAWING: Figure 1

The present invention provides a method for manufacturing a magnetic head suspension that can effectively prevent contact marks from being left on the portion of the lift tab tip that engages with the ramp during the tongue orientation confirmation process, which measures the relative orientation of the tongue region with respect to the base plate. [Solution] In the method for manufacturing a magnetic head suspension according to the present invention, during the tongue posture confirmation step, the tip support member that supports the tip region of the lift tab is positioned to support at least one of the ranges of 0.45 × L from the base end of the tip region and 0.2 × L from the tip of the tip region, when the total length of the tip region is L.

The present invention discloses a tongue muscle rehabilitation training device, comprising: a handheld portion, a tongue muscle training portion, the handheld portion is provided with a pressure relief check hole, the tongue muscle training portion is provided with a tongue suction pull cup and an elastic hemisphere, the bottom of the tongue suction pull cup is connected to the pressure relief check hole, the handheld portion comprises a bottom end and an open end, the handheld portion is an elliptical shell structure with an annular positioning groove recessed on the outer side of the open end, the pressure relief check hole is provided at the center of the bottom end of the handheld portion, and the open end of the handheld portion is provided with a rubber sleeve. The present invention can comprehensively train the sensitivity and touch of the tongue muscles and the tip of the tongue, and can enhance the strength and flexibility of the tongue muscles through training with the tongue suction pull cup, thereby improving the relative degree of tongue muscle rehabilitation training for patients. The present invention has a simple structure, is easy to use, and can be reused after high-temperature sterilization, which greatly reduces the cost of use.

The invention relates to the technical field of rehabilitation medicine, and discloses a tongue muscle force detection training instrument which comprises an instrument body, a cable, a patch electrode and a detection assembly. One side of the instrument body is detachably connected with the cable, and one end of the cable is connected with the patch electrode; the detection assembly comprises a single-chip microcomputer, a display screen and a first pressure sensor. The single-chip microcomputer is arranged in the instrument body, the display screen is arranged on the outer side of the instrument body, and the first pressure sensor is arranged in the patch electrode. The single-chip microcomputer is electrically connected with the display screen and the first pressure sensor. According to the tongue muscle force detection training instrument, the patch electrode and the first pressure sensor are attached to a certain point position of the palate of a child patient, when the child patient uses the tongue tip to abut against the position, the first pressure sensor can detect the upward abutting force, and the upward abutting force is transmitted to the detection assembly through the cable; and then the data is recorded and analyzed through the single chip microcomputer, and the magnitude of the tongue muscle force is displayed through the display screen, so that the child patient and parents can observe the training effect at home and further insist in training.

The utility model discloses a tongue depressor for physical examination of infants, which comprises a depressor handle, a depressor body is fixedly arranged at one end of the depressor handle, a depressor head is mounted at one end of the depressor body far away from the depressor handle, the depressor head, the depressor handle and the depressor body are all made of silica gel materials, and the depressor head is heart-shaped and is matched with a tongue tip anatomical structure. The top and the bottom of the plate head are each fixedly provided with a plurality of first anti-skid protruding points, the plate handle and the plate body are integrally formed, the two sides of the plate handle are each provided with a holding groove, the holding grooves are in an arc shape, and the top and the bottom of the plate handle are each fixedly provided with a plurality of second anti-skid protruding points. The tongue depressor solves the problems that a traditional tongue depressor is simple in shape design, usually in a flat long strip shape, not matched with the anatomical structure of the tongue tip of an infant, difficult to accurately press the tongue tip in the using process, smooth in surface, prone to slipping in the using process due to salivary secretion of the infant and the like, and affects examination.

The application provides a vertical air conditioner indoor unit, which comprises a heat exchange volute, a guide vane, a front volute tongue, and a rear volute tongue. The heat exchange volute comprises a front volute tongue inner wall surface, a front volute tongue tip surface, a front volute tongue transition surface, and a front volute tongue air outlet surface. The front volute tongue transition surface is connected with the front end of the front volute tongue tip surface, is located on the side of the front end of the front volute tongue tip surface away from the rear volute tongue, and the front end of the front volute tongue air outlet surface is connected with the rear end of the front volute tongue transition surface. The front volute tongue air outlet surface is located on the side of the front volute tongue transition surface away from the rear volute tongue. The guide vane is located on the side of the front volute tongue air outlet surface close to the rear volute tongue, is rotationally connected with the rear volute tongue, and the end of the guide vane close to the front volute tongue air outlet surface is located in front of the front volute tongue transition surface, so that the guide vane blocks the air flowing along the front volute tongue tip surface, and air leakage between the guide vane and the front volute tongue is reduced.

This utility model discloses a tongue tip trainer for speech and oral motor rehabilitation, including a support and a tongue muscle elastic training component. The support has a training space; the tongue muscle elastic training component includes a tongue tip component and an elastic component. The tongue tip component is located within the training space and is connected to the support via the elastic component. When the user's tongue presses against the tongue tip component, the tongue tip component moves within the training space, forcing the elastic component to undergo elastic deformation, thereby providing motion resistance. The tongue tip trainer for speech and oral motor rehabilitation provided by this utility model utilizes the pressing action of the tongue against the tongue tip component during use, enabling the tongue tip component to move within the training space and simultaneously forcing the elastic component to undergo elastic deformation, thus providing motion resistance. This motion resistance can improve the tongue muscle training effect. Furthermore, it can provide variable training loads to meet the different oral motor rehabilitation needs of various users, thereby effectively improving training results and satisfying diverse training requirements.

The utility model provides a tongue-shaped straw for assisting in drinking water, which belongs to the technical field of intelligent drinking equipment and comprises a bionic tongue piece. Comprising a silica gel base body, a main runner pipe inserted into the tongue tip end of the silica gel base body, a cross flow deflector fixedly connected to the end face of the main runner pipe, a drainage groove formed in the upper surface of the silica gel base body, a flow dividing cavity formed in the lower layer of the silica gel base body and a plurality of flow dividing grooves formed in the bottom of an inner cavity of the flow dividing cavity. The micro-flow through holes are formed in the back surface of the silica gel base body and are communicated with the flow dividing grooves. Through the design of the bionic tongue piece and the double-channel shunting structure, the problems that a traditional suction tube is single in function and uncontrollable in liquid mixing are solved; a main flow channel and an auxiliary flow channel facilitate graded flow guiding, independent conveying of water and flavor liquid is achieved, and odor tainting is avoided; ergonomic adaptability: the gradient thickness (2-3mm) of the silica gel substrate and the nipple-imitating texture simulate the tongue surface touch sense, and fit the oral cavity shape, so that the comfort level is improved.

Disclosed in the present utility model is a lingual muscle function trainer, comprising a groove base, an inner wall and an outer wall, wherein the inner wall and the outer wall are both fixed on the upper surface of the groove base, and the inner wall is located on the side of the outer wall close to the throat; a gap is reserved between the inner wall and the outer wall, and the gap is designed for accommodating the upper teeth; and a lower tongue stop is provided on the side of the inner wall close to the throat, and is used for positioning the lower surface of the tongue tip. Compared with the prior art, the lingual muscle function trainer of the present utility model can make the treatment process of mouth-breathing patients simpler and more convenient.

The utility model relates to the field of rehabilitation, and discloses a tongue muscle training measurer. The device comprises a training platform, a tongue muscle pushing sliding rod and a handheld part. The training platform is in a sheet shape and comprises a near end and a far end, the near end of the training platform is attached to the tongue base in shape, the near end of the training platform is configured to partially stretch into the tongue base of a patient, and a groove body is formed in the training platform. The tongue muscle pushing sliding rod comprises a seat body and a training part, the seat body is arranged at the lower end of the training part, the seat body of the tongue muscle pushing sliding rod is inserted into the groove body of the training platform, the training part is arranged above the upper surface of the training platform, the training part abuts against the tongue tip of the patient, and the training part is used for providing resistance when the tongue of the patient pushes the tongue muscle pushing sliding rod to move towards the far end of the groove body. The lower surface of the training platform is connected with a handheld part, and the handheld part is used for being held by a patient. By adopting the device, the patient with tongue muscle degeneration can be assisted in initiative training, and the training effect can be dynamically measured.

The rotary cutting tool (20) has an insert receiving pocket (30) in which a cutting insert (30) is removably fixed, and behind it, a recess side surface facing radially outward, and an adjustment recess having an adjustment tongue spaced therefrom by a first inner passage. The adjustment tongue (46) extends rearward from the tongue root to the tongue tip and includes a tongue through-hole. The tongue root has a shoulder surface facing forward, and the cutting insert contacts the shoulder surface. An adjustment screw (86) passes through the tongue through-hole and engages with the recess side surface, and rotation of the adjustment screw causes the cutting insert to move axially forward. A virtual straight line in the first inner passage intersects a recess rear end surface formed in a first body sub-part of the cutting body integrally formed with the adjustment tongue.

The invention relates to a band clamp including a clamping band (10) with an outer band end (12) and an inner band end (14), the outer band end (12) including at least one opening (16a-16c) and an ear-like tightening structure (18) with two radially outward extending legs (30, 32) and a web (34) interconnecting the outer ends of the legs (30, 32) and a tongue recess (20), wherein the web (34) includes a depression (36) to prevent buckling the inner band end (14) including at least one hook (22a-22c) and a tongue (28), wherein, in a pre-assembled configuration of the band clamp, the hook (22) engages in the opening (16a-16c) in the outer clamping band (10) end and a tip of the tongue (28) engages in the tongue recess (20) and the tongue (28) is configured to be moved into the togue recess when the clamp is being tightened by narrowing the ear-like tightening structure (18).In order to reduce the risk of buckling, it is proposed that the inner band end (14) includes a longitudinal rib (24) configured to be arranged below the depression (36) of the web (34) in the pre-assembled configuration, wherein at least an end portion (24a) of said rib (24) has a height continuously decreasing towards the tongue (28) and / or dot (26) protruding toward the outer band end (12) is provided at a shoulder portion of the inner band end (14).

The present invention discloses a tongue frenulum measuring device, the technical solution of which includes a handle, a measuring plate and a through hole for observing the oral cavity, the handle is slidably arranged on a support plate, a first suction cup for adsorbing the tongue tip is installed at the front end of the handle, an air bag and a first adjustment shaft are arranged on the handle, the air bag is communicated with the first suction cup, a first sliding hole is arranged on the measuring plate, the first adjustment shaft passes through the first sliding hole and is threadedly connected with a first nut, and a first scale is arranged on the edge of one side of the measuring plate. The present invention has the following beneficial effects: the mouth is opened by the mouth opener to keep the mouth open, the first suction cup adsorbs the tongue tip, drives the tongue tip upward, so that the tongue frenulum is exposed, and then the tongue frenulum is measured by the measuring plate, and the length of the tongue frenulum is measured according to the first scale to judge whether the tongue frenulum is too short and whether the tongue frenulum extension surgery is needed.

The invention provides a flexible tongue electrode for tongue electrophysiology detection and a customization method. The flexible tongue electrode comprises a flexible substrate layer and a flexible electrode, wherein the flexible substrate layer covers a tongue tip, a tongue side, a tongue middle and a tongue root, and the surface of the flexible substrate layer is provided with a three-dimensional curved surface matched with the surface of a tongue part; the conductive layer is a patterned electrode array arranged on the flexible substrate layer in a distributed manner, the conductive layer comprises a plurality of electrode units and interconnection wires, the electrode units respectively cover the tongue tip, the tongue side, the tongue middle and the tongue root, and the electrode arrays of the electrode units acquire the same or different spatial resolutions; the flexible packaging layer covers the tongue tip, the tongue side, the tongue middle and the tongue root, the surface of the flexible packaging layer is provided with a three-dimensional curved surface matched with the surface of the tongue part, and a first through hole structure used for exposing electrode sites, a second through hole structure used for exposing a rear-end bonding pad and a third through hole structure used for discharging secretions are etched on the flexible packaging layer. According to the scheme, distributed layout covering the whole tongue can be achieved, the attachment degree is improved, secretion accumulation is reduced, and efficient, high-precision and high-stability collection is achieved.

The utility model provides an orthodontic dynamometer. The orthodontic dynamometer comprises a shell, a dowel bar, a tongue top assembly, an alveolar cavity and a weighing sensor, the tooth socket is arranged at the end part of the shell; the tongue top assembly comprises a tongue top contact end, a telescopic section and a connecting section, the two ends of the telescopic section are connected with the tongue top contact end and the connecting section respectively, one end of the weighing sensor is fixed and connected with the shell, the other end of the weighing sensor is suspended, one end of the dowel bar is connected with the suspended end of the weighing sensor, and the other end of the dowel bar is connected with the connecting section of the tongue top assembly; the tongue top components are divided into four types: a tongue tip tongue top component, a tongue middle tongue top component, a left side tongue top component and a right side tongue top component; the tongue top assembly comprises a tongue top contact end, a telescopic section and a connecting section, and the two ends of the telescopic section are connected with the tongue top contact end and the connecting section respectively; according to the orthodontic dynamometer disclosed by the invention, forces at different point positions of the tongue can be accurately measured in real time, so that great help is provided for clinical diagnosis and treatment of tongue muscle dysfunction.

1. The name of the design product: oral training device (dragon). 2. The use of the design product: oral training device for children's oral tongue tip, tongue muscle, and oral muscle training. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The utility model relates to the technical jaw field of oral training instruments, and discloses a muscular function appliance which comprises a body, an upper tooth groove, a lower tooth groove and a tongue containing groove, the upper tooth groove and the lower tooth groove are formed in the two opposite sides of the body and arranged along the periphery of the tongue containing groove, and the tongue containing groove is formed in the body. The rear end of the upper tooth groove, the rear end of the lower tooth groove and the rear end of the tongue containing groove are open, a tongue contact part is arranged at the position, at the top of the front end of the tongue containing groove, of the body, and a first through hole communicated with the upper tooth groove and the tongue containing groove is formed in the tongue contact part. Or the tongue contact part is provided with a first notch which is sunken towards the front end of the tongue accommodating groove. The muscular function appliance can help stimulate and train lifting of the tongue tip and improve the position of the tongue of a user.

The utility model relates to the field of auxiliary medical rehabilitation instruments, in particular to a tongue muscle training device. The tongue muscle training device comprises a handle, a tongue middle suction cup and a tongue tip suction cup. Wherein the tongue middle suction cup is arranged on the handle and is configured to fix a tongue body through the upper surface of the tongue middle under the action of the first suction force generating device, and the tongue tip suction cup is arranged on the handle and is configured to adsorb a tongue tip under the action of the second suction force generating device. The tongue muscle training device is simple in structure, the tongue middle suction cup is arranged, the upper surface of the tongue middle is sucked and fixed, the tongue body is lifted under the action of external force, and therefore the tongue tip which is bent downwards and shielded by teeth is exposed. And then, the tongue tip sucker adsorbs and fixes the exposed tongue tip under the action of a second suction force generating device, so that the accurate fixation of the tongue tip position is achieved, the traction of the tongue body under the action of external force is further realized, and the rehabilitation training of the tongue body is completed.

1. The name of the design product: oral training device (snake). 2. The use of the design product: oral training device for children's oral tongue tip, tongue muscle, and oral muscle training. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The present invention provides a linear motion guide device that reduces damage to the tip of the tongue section while smoothly guiding the guide into the circulation path, thereby improving operability. [Solution] In the linear motion guide device 10, an arc groove 222 forming the outer circumferential surface of the direction change path is formed on the slider body side surface of the end cap 22. A tongue portion 25 is formed at the track-side end of the arc groove 222 to scoop up the ball 3 from the track and guide it to the direction change path. The tip portion 251 of the tongue portion 25 comprises a plane 251a perpendicular to the direction along the track and a spherical surface 251b formed between the plane and the arc groove. The diameter of the spherical surface 251b is greater than or equal to the diameter Da of the ball 3, and the spherical surface 251b is formed away from the outer circumferential surface of the tongue portion 25.

The invention discloses a volute, a centrifugal fan and an air conditioner, the volute is used for the centrifugal fan, the volute comprises a coaming, the coaming comprises a main body section arranged in a spiral bending mode, an air outlet section and a volute tongue section, and the air outlet section and the volute tongue section are connected with the two ends of the main body section; one end, far away from the main body section, of the air outlet section is spaced from one end, far away from the main body section, of the volute tongue section so as to define an air outlet, and the volute tongue section is provided with a tongue tip point, a minimum air gap point and a connecting section for connecting the tongue tip point and the minimum air gap point; the volute tongue section is further provided with a protruding point located between the tongue tip point and the minimum air gap point, and the protruding point protrudes out of other parts of the connecting section in the direction perpendicular to the plane where the cross section of the air outlet is located. According to the technical scheme, the air volume of the centrifugal fan can be increased, and the requirement for miniaturization of the centrifugal fan is met.

1. The name of this design product: Oral Trainer (Tiger). 2. Purpose of the product of this design: An oral trainer used for training the tip of the tongue, tongue muscles, and oral muscles in children's mouth. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.