97 results about "Mouth structure" patented technology

The invention discloses a node structure of a prefabricated assembly type concrete beam column component. The node structure comprises a tenon, a lap joint, a wedge nail groove, a tenon tongue and a tongue hole. A tenon and a lapping opening are formed along the longitudinal symmetry center face of the prefabricated part in a dividing mode, the tenon and the lapping opening are matched in structure and size, one end of the tenon is embedded in the tenon, the other end of the tenon extends outwards from the end face of the tenon, the tongue hole is formed in the side end face of the lapping opening, the tenon is matched with the tongue hole, and the wedge nail groove is formed in the matching plane of the tenon and penetrates through the tenon in the transverse direction. The wedge nail grooves of the two prefabricated parts are oppositely buckled to form a wedge nail hole, a wedge nail penetrates through the wedge nail hole, the tongue hole is formed by a tongue hole embedded part, and the wedge nail groove is formed by a wedge nail groove embedded part; the joint structure adopts a wedge nail tenon structure, lap joint assembly is simple and easy to operate, assembly precision is easy to prefabricate and guarantee, assembly flexibility is higher, stability is good, site construction is friendly, and the joint structure is more suitable for connection between concrete prefabricated parts.

The utility model discloses a reel jaw structure convenient to disassemble and assemble, which comprises a hollow main shaft, a plurality of arched blocks and a clamp block are uniformly arranged on the peripheral side of the hollow main shaft, a jaw comprises an upper clamp block and a lower clamp block, a jaw is arranged between the upper clamp block and the lower clamp block, a jaw strip is arranged on the inner side of the jaw, and a plurality of arc-shaped blocks are uniformly arranged on the inner side of the jaw strip. A mounting shaft is arranged on the lower side between the upper clamp block and the lower clamp block, and a mounting groove corresponding to the mounting shaft is formed in the side surface of the hollow main shaft. An upper jaw spring sleeve is arranged on the inner side of the upper clamp block, and an upper jaw spring is arranged on the inner side of the upper jaw spring sleeve. The structure is simple in disassembly and assembly working principle, reasonable in design, easy and convenient to operate and reliable to use, the requirement for convenience of disassembly and assembly of the reel clamp block during maintenance can be met, the labor intensity of workers for disassembly and assembly of the reel jaw is reduced, the use of manpower resources is reduced, the one-time production cost and the use and maintenance cost of enterprises are reduced, and meanwhile the production efficiency is improved.

The utility model belongs to the technical field of ultrasonic scalpels, and particularly relates to a jaw structure of an ultrasonic scalpel, which comprises a scalpel head body, a jaw body and a tissue gasket, the jaw body is arranged to be opened and closed relative to the scalpel head body, a mounting groove is arranged on one side of the jaw body facing the scalpel head body, and the tissue gasket is arranged in the mounting groove. The periphery of the tissue gasket is in contact limiting with the periphery of the mounting groove, the bottom surface of the tissue gasket is in contact limiting with the bottom surface of the mounting groove, a plurality of mounting parts are arranged on the tissue gasket and are sequentially arranged around the periphery of the tissue gasket, and holes matched with the mounting parts are formed in the periphery of the mounting groove; a pressing area is arranged on the outer surface, opposite to the mounting groove, of the jaw body, and when the pressing area is pressed, the tissue gasket is ejected out of the mounting groove by the pressing area. The tissue gasket of the jaw structure is quite firm in installation and quite convenient to assemble and disassemble, and even the tissue gasket can be replaced in the operation process.

The utility model discloses an anti-skid embedded plastic bucket opening structure, and relates to the technical field of bucket opening structures. According to the anti-skid embedded plastic bucket opening structure, the anti-skid function is achieved by arranging the connecting ring, the anti-skid protrusions, the connecting plates, the first clamping blocks, the connecting grooves and the sliding grooves, the connecting ring is fixed to the top of the bucket body through the first clamping blocks, the sliding grooves and the connecting grooves, and due to the fact that the anti-skid protrusions are arranged on the surface of the connecting ring, friction force of the surface of the connecting ring is increased; the whole barrel body can be more firmly grabbed by a user when the barrel body is taken; by arranging a moving ring, a top block, a connecting frame, a second clamping block, a moving plate, a sliding rod, a spring, a connecting ring, an anti-skid protrusion, a connecting plate, a first clamping block, a connecting groove and a sliding groove, the functions of dismounting and mounting the connecting ring are achieved; the barrel body and the connecting ring can be separated, the damaged barrel body or the damaged connecting ring can be replaced, resources are saved, and waste is avoided.

A lonicera caerulea fruit picking clamp with a crab-claw-shaped jaw structure belongs to the field of lonicera caerulea fruit picking tools and comprises a positioning clamp arm and a cutting clamp arm, the positioning clamp arm and the cutting clamp arm are respectively provided with a control handle, the control handles are mutually crossed and hinged to form a picking clamp body, and the front end of the positioning clamp arm is provided with a bearing frame and is correspondingly provided with a storage channel. The bearing frame is of a crab claw-shaped jaw structure with a bearing face and a V-shaped jaw, a shearing blade is arranged on the edge of one side of the V-shaped jaw, the bearing frame and the containing channel are arranged correspondingly, a cutting blade is arranged at the front end of the shearing pliers arm, and a lateral blade corresponding to the shearing blade structure on the edge of one side of the V-shaped jaw is arranged on the cutting blade. The V-shaped jaw can be matched with the bearing frame to form a shearing structure, the V-shaped jaw is matched with the cutting blade to shear off fruit stems to achieve picking, fruits do not bear any external force in the harvesting process, the harvesting quality can be fully guaranteed, the picking difficulty can be lowered in production and use, the picking efficiency is improved, the labor intensity is relieved, and potential safety hazards are reduced.

The utility model relates to a liner of a breathing mask and the breathing mask, and relates to the technical field of ventilation treatment. The pad of the breathing mask comprises a mouth-nose pad body internally provided with a cavity, and the mouth-nose pad body comprises a nose structural body, a mouth structural body and a mouth-nose connecting part connecting the nose structural body and the mouth structural body. Due to the fact that the step structure with the plane step is formed between the mouth-nose connecting part and the top supporting part and / or between the mouth-nose connecting part and the side supporting part, when the nose structural body is subjected to the pressure of the gas in the cavity, the plane step can serve as an acting platform of the pressure. Therefore, the mouth-nose connecting part can be driven to deform, and the top supporting part, the side supporting part and the nose concave part are driven to integrally move upwards, so that the mouth-nose connecting part can better fit the nose of a user, and the comfort of the user and the wearing compliance are improved.

The utility model discloses a solution containing barrel which comprises a barrel body, a bottle opening structure is arranged at the top end of the barrel body and comprises a bottle opening, a thread A, an inner cover, a connecting thread A, a thread B, a connecting ring A, an outer cover and a connecting thread B. The bottle opening is arranged at the top end of the barrel body, the thread A is arranged on the outer surface of the bottle opening, the inner cover is connected to the outer side of the bottle opening, and the connecting ring A is arranged on the outer side of the inner cover. The inner wall of the inner cover is provided with a connecting thread A in threaded connection with the thread A. The outer side of the inner cover is connected with an outer cover. By means of the designed bottle opening structure, the bottle opening structure is provided with two connecting structures with different specifications, namely the thread A and the thread B, so that the bottle opening structure can be matched with threaded connectors with different specifications, the connecting stability between the connecting cover on the liquid pumping pipe and the bottle opening structure on the barrel body is guaranteed, drifting of the liquid pumping pipe and solution pollution are not prone to occurring, and follow-up cleaning work is facilitated.

The utility model relates to the technical field of five-gallon barrels, in particular to a five-gallon barrel opening structure which comprises a barrel opening, a plurality of fixing blocks are fixedly connected to the outer wall of the barrel opening, rotating rods are movably connected to the inner walls of the fixing blocks, and pressing heads are fixedly connected to the tops of the rotating rods. A first spring is fixedly connected to the outer wall of the rotating rod, a linkage rod is movably connected to the outer wall of the rotating rod, multiple limiting grooves are formed in the outer wall of the can opening, sliding rod grooves are formed in the bottoms of the interiors of the multiple limiting grooves, limiting blocks are installed in the multiple limiting grooves, and connecting blocks are fixedly connected to the outer walls of the limiting blocks; the bottom of the limiting block is fixedly connected with a sliding rod. The barrel cover is convenient and fast to disassemble and assemble, the operation process is simple, a special cover pulling machine does not need to be used additionally, and the cost is saved.

The invention relates to the technical field of ship manufacturing, in particular to a ship segmented closure opening structure which comprises ship segments and supporting ribs, and the supporting ribs are connected to the inner side face of a to-be-closed opening and have the curvature the same as or similar to a preset shape so as to keep the shape of the to-be-closed opening. The ship sections are connected with the supporting ribs through the pull rods so that the inner side faces can be attached. The pull rod is composed of a connecting sleeve, a main connecting rod, an auxiliary connecting rod and abutting blocks, the connecting sleeve is connected with the main connecting rod and the auxiliary connecting rod through threads, the abutting blocks are adjusted to be close to each other through the threads in the opposite rotating directions, and tight attaching is ensured. Part of the abutting blocks are provided with embedding holes, and the connection stability can be further enhanced through the wedge blocks. The effect of improving the structural stability and the assembly precision of the ship block closure opening is achieved, meanwhile, the operation process is simplified, and the construction efficiency is improved.

The invention provides a split type combined vacuum tank for multielement co-permeation of super-long steel bars, which comprises a plurality of unit tanks, the plurality of unit tanks are sequentially connected to form a complete tank, the joint of every two adjacent unit tanks is provided with a child-mother opening which is matched with the child-mother opening, the child opening of one unit tank is inserted into the mother opening of the other unit tank, and the child-mother opening of the other unit tank is connected with the child-mother opening of the other unit tank. The secondary opening is in interference fit with the primary opening; chucks are arranged at the adjacent ends of the two unit tanks, the two chucks are connected through a clamping ring, the clamping ring wraps the outer sides of the chucks, and the two chucks are in interference fit with the clamping ring. The sealing device has the beneficial effects that random combination can be achieved according to the length of materials, and meanwhile the sealing performance is considered. Due to the split design, the transportation size is reduced, and the transportation problem of an ultra-long tank is solved; double positioning is carried out through the child-mother opening structure, and the sealing performance of the tank opening can be effectively improved through the child-mother opening connecting mode; the unit tanks are connected through the chucks and the clamping rings, the chucks and the clamping rings are in interference fit to be clamped and then fixed, and installation efficiency is improved.

The utility model relates to the technical field of drainage of sponge cities, in particular to a siphon overflow well mouth structure of a sponge city, which comprises a well mouth, an overflow port is arranged on the well mouth, the upper end of the overflow port is connected with an overflow port well seat, an overflow well cover is connected in the overflow port well seat, and at least one pipe placing groove is arranged on the upper portion of the overflow port. A U-shaped pipe is connected into the pipe containing groove, the opening portion of an external pipe section of the U-shaped pipe faces the outside of the well mouth and does not make contact with the upper face of the well mouth, and an internal pipe section of the U-shaped pipe extends into the overflow opening. A central overflow port is formed in the middle of the overflow well lid; and a prompting assembly is movably inserted into the central overflow port. The drainage device is easy to construct, low in cost and good in drainage effect, and can indicate the position of a well mouth during waterlogging disasters.

Open-end wrench with an asymmetrically structured jaw opening, comprising a handle (10) and a head (20), wherein the handle (10) and the head (20) are connected to each other such that the head (20) is connected to one end of the handle (10), characterized in that an opening (20A), a load-bearing surface (21), two force-application surfaces (22), at least one rounded surface (23), at least one fixing surface (24), a plurality of deflection notches (25), and a clamping surface (26) are arranged on the head (20), wherein the load-bearing surface (21), the force-application surfaces (22), the at least one rounded surface (23), the at least one fixing surface (24), the deflection notches (25), and the clamping surface (26) are directed towards the opening (20A), wherein the load-bearing surface (21) faces the two force-application surfaces (22), wherein the two force-application surfaces (22) are a first force application area (221) and a second force application area.(222) wherein the rounded surface (23) is arranged between the fixing surface (24) and the first force application surface (221), wherein at least one of the avoidance notches (25) is arranged between the first force application surface (221) and the second force application surface (222), wherein one of the avoidance notches (25) is arranged between the second force application surface (222) and the clamping surface (26); and that the loaded surface (21) has a plurality of the avoidance notches (25).

The utility model discloses an infusion bag liquid level warning infusion apparatus which comprises a cylindrical shell, the cylindrical shell is hollow, an opening is formed in the bottom of the cylindrical shell, a sealing cover is arranged on the opening in a threaded and sleeved mode, and a rubber opening structure similar to an infusion bottle is arranged on the sealing cover. The upper end of the cylindrical shell is fixedly connected and communicated with an infusion contact pin, a power supply is fixedly arranged on one side of the cylindrical shell, a shell is fixedly arranged on the other side of the cylindrical shell, and a liquid level detector, a controller and an alarm are arranged in the shell. The infusion alarm can be directly used on an original infusion apparatus, the structure does not need to be improved, meanwhile, it can be guaranteed that an alarm is given when liquid in an infusion bottle or an infusion bag is completely infused, and the liquid level in an infusion tube is prevented from being too low.

The utility model discloses a combined type quick-change jaw structure which comprises a fixed jaw and a quick-change jaw, a T-shaped open slot is formed in one side, facing the fixed jaw, of the quick-change jaw, a locking rod is inserted into the T-shaped open slot, the head of the locking rod is in a T shape matched with the T-shaped open slot, and the head of the locking rod is connected with the fixed jaw. A spring is arranged on the side, away from the T-shaped open groove, of the locking rod, the top of the locking rod is connected to the driving rod, the fixed jaw is connected with a compression screw matched with the driving rod, and a clamping spring matched with the compression screw is connected into the driving rod. Compared with the prior art, the utility model has the advantages that: 1, the jaw structure of the combined type quick-change flat tongs is provided, and the problem that the jaw of the existing flat tongs is inconvenient to replace is solved; 2, the jaw is efficiently and quickly replaced, the replacement time of the jaw is shortened, and the production efficiency is improved;

The utility model belongs to the technical field of molds, and particularly relates to a glue breaking opening structure and a mold mechanism, the glue breaking opening structure comprises a mold body, an insert pin assembly, a supporting block and a plurality of elastic pieces, the mold body is provided with a mold cavity used for manufacturing a workpiece to be cast and a containing groove communicated with the mold cavity, and the supporting block is installed in the containing groove. The supporting block is provided with a first through hole and a plurality of first mounting holes formed around the first through hole at intervals in the circumferential direction, and the elastic pieces are mounted in the first mounting holes in a one-to-one correspondence mode; the insert pin assembly is movably installed in the first through hole and provided with a convex part abutting against all the elastic pieces, and the end, away from the convex part, of the insert pin assembly extends into or retreats from the glue injection opening of the workpiece to be cast. According to the utility model, the glue breaking port structure can finish the work of the glue breaking port of the workpiece to be cast in advance, so that the quality of the workpiece to be cast is ensured; and the glue breaking opening structure is simple in structure and low in manufacturing cost.

The gastrointestinal anastomosis support comprises a support tube, a plurality of through grooves are formed in the support tube, one end of the support tube is sleeved with a connecting section, the side, away from the support tube, of the connecting section is connected with an anastomosis part through a conical part, and the other end of the support tube is rotationally connected with an adjusting part. The adjusting part is of an inclined structure, and the connecting section and the adjusting part are connected with the adjacent through grooves in a clamped mode through four connecting assemblies which are symmetrically arranged at equal intervals. Through the structure, the anastomosis part and the conical part form a horn mouth structure so as to adapt to the physiological structures of the stomach and the intestine, it is ensured that the stent can be tightly attached to the tissue in the anastomosis process, the leakage risk is reduced, and meanwhile the adjusting part which is located at one end of the stent tube and is of an inclined structure can adjust the angle when needed; in addition, due to the fact that the connecting assembly is connected with the through groove in a clamping mode through the buckle, a doctor can conveniently adjust the positions and the angles of the connecting section and the adjusting portion to meet different operation requirements.

The utility model discloses a grouting hole casing pipe lower opening structure which comprises a grouting hole, a base plate is attached to the upper surface of the grouting hole, a square pipe is fixedly connected to the center of the upper surface of the base plate, supporting blocks are symmetrically and fixedly connected to the lower surface of the base plate, a round pipe is fixedly connected to the other ends of the supporting blocks, and the round pipe is located in the center of the lower surface of the base plate. The outer wall of the circular pipe is attached to the inner wall of the grouting hole. Limiting structures are further arranged on the two sides of the square pipe, a sleeve can be clamped, a plurality of rubber strips are connected into a circular groove block in a glued mode to increase friction force, clamping of the sleeve can be more stable, meanwhile, stretching and retracting of a hydraulic cylinder can be controlled, the sleeve continues to slide downwards, and the situation that the grouting effect and quality are affected due to displacement in the grouting process is avoided; accurate control and clamping are conducted, it can be guaranteed that the casing pipe is firm and stable in the grouting process, and the problem of displacement is avoided.

The utility model relates to the technical field of rubber tube moulds, in particular to a special-shaped flat mouth structure rubber tube mould which comprises a mould core, a connector is arranged on one side of the mould core in an attached mode, one side of the mould core and one side of the connector are both of a cylindrical structure, and the outer diameter of the mould core is the same as the outer diameter of a cylindrical area of the connector. A die head is arranged at the end, away from the die core, of the connector. According to the scheme, through the unique design of the first transition curved surface, smooth transition of the rubber tube from a round port to a square port is achieved, stress concentration and material damage in the tube blank deformation process are effectively avoided, and the process that the rubber tube is led into the rectangular channel is further optimized through cooperation of the conical channel and the second transition curved surface; and it is ensured that the deformed pipe blank can quickly and accurately enter the shaping stage, the mold core and the connector are assembled more conveniently through the insertion rod and the insertion groove which are in threaded connection, a user can flexibly switch the mold heads according to the production requirement, and the production efficiency and the mold universality are remarkably improved.

The utility model discloses a filter bag with an adjustable cage opening structure, which comprises a base, wherein a plurality of circular grooves are formed in the side end of the base; through cooperation of a cage frame assembly and a transmission mechanism, a rotating plate is rotated, at the moment, the rotating plate and a rotating rod drive a circular plate to rotate, at the moment, due to the fact that a circular rod is inserted into an inclined groove, when the circular plate rotates, the circular rod can be driven to move in the inclined groove in the direction close to the outer ring of the circular plate, and at the moment, the circular rod drives a moving rod to move towards the outer end of the circular groove; at the moment, the vertical plates are gradually far away from the direction of the circular groove, a circular cage opening is formed between the fixing plates at the top end of each vertical plate, the caliber of the circular cage opening is slowly increased along with movement of the vertical plates, and after adjustment is completed, the outer ends of the vertical plates are sleeved with the filter bags, and the top ends of the filter bags are fixed between the side ends of the clamping plates and the side ends of the fixing plates; therefore, the size of the cage opening is convenient to adjust, and the filter bag cage is suitable for filter bags with various calibers and meets use requirements of people.

Disclosed is a working end of a surgical instrument for delivering heat energy to tissue and (RF) energy for cutting tissue of different modalities. The working end includes paired first and second metal jaw members movable between open and closed positions, with each jaw member defining a jaw body and jaw end-effecter for engaging and heating tissue for the sealing of the tissue or vessels, or welding and coagulation of the tissue and jaw structure capable of generating radiofrequency (RF) energy for cutting tissue. Jaw members contain a microwave emitter coupled to a microwave energy source, the emitter is located within the jaw end effecter, which effecter includes an insert made of a microwave energy absorbing material which converts microwave energy into the heat energy. Jaw members also contain electrodes located within the jaw effecter end coupled to a radiofrequency (RF) energy source for procedures including tissue cutting, etc.

The invention discloses an auxiliary tool for opening and closing various valve wheel discs, which comprises a screw rod, the screw rod comprises a horizontal rod and a vertical rod, the horizontal rod and the vertical rod are arranged in an L shape, a detachable jaw is movably arranged on the side surface of the vertical rod to realize jaw size adjustment, the detachable jaw and the horizontal rod are arranged in parallel, and the screw rod and the detachable jaw are arranged in an F shape. A detachable stress application rod is movably arranged at the bottom of the vertical rod, the length of the vertical rod is adjusted, and the size of the detachable jaw structure is the same as that of the detachable stress application rod structure. According to the invention, the operation is convenient and efficient, all the components are detachably connected, carrying and storage are convenient, the detachable jaw and the detachable stress application rod can be set to be of the same specification, the types of parts are reduced, the jaw can be rapidly replaced and the stress application rod can be rapidly spliced during field operation, the tool searching and adapting time is shortened, and the working efficiency is improved. And the convenience and the efficiency of valve opening and closing operation of a certain offshore platform are remarkably improved, and high practical value and wide popularization prospects are achieved.

Disclosed is a working end of a surgical instrument for delivering heat energy to tissue and (RF) energy for cutting tissue of different modalities. The working end includes paired first and second metal jaw members movable between open and closed positions, with each jaw member defining a jaw body and jaw end-effecter for engaging and heating tissue for the sealing of the tissue or vessels, or welding and coagulation of the tissue and jaw structure capable of generating radiofrequency (RF) energy for cutting tissue. Jaw members contain a microwave emitter coupled to a microwave energy source, the emitter is located within the jaw end effecter, which effecter includes an insert made of a microwave energy absorbing material which converts microwave energy into the heat energy. Jaw members also contain electrodes located within the jaw effecter end coupled to a radiofrequency (RF) energy source for procedures including tissue cutting, etc.

A fire-dragon cupping device integrated with functions of cupping and scraping includes: an outer cupping body; a lotus-petal-shaped mouth structure disposed on the outer cupping body; a circular mouth structure including an inner cupping body and a circular mouth connected to a top of the inner cupping body; a connecting ring disposed on an inner wall of the transmission sleeve; meshing transmission assemblies annularly arranged on a bottom of an interior of the outer cupping body; and a screw rod drive assembly disposed on a bottom of the outer cupping body. The lotus-petal-shaped mouth structure includes: an assembly ring fixedly installed on a top of the outer cupping body, a transmission sleeve, and a lotus-shaped mouth disposed on a top of the transmission sleeve. The fire-dragon cupping device, through position switching of the lotus-petal-shaped mouth structure and the circular mouth structure, possess multiple therapeutic effects of scraping, moxibustion, and cupping.

The three-dimensional shaping device comprises a connecting block, clamping blocks are fixedly connected to the left side and the right side of the connecting block, the top and the front side of each clamping block are each of an open structure, a lifting groove is formed in the front side of the connecting block, and a shaping mechanism is arranged on the front side of the connecting block. Through mutual cooperation of the connecting block, the clamping block, the lifting groove, the shaping mechanism, the sliding column, the sliding plate, the supporting block, the lifting plate, the vertical rod, the shaping block, the clamping groove, the movable groove, the connecting rod, the pulling plate, the supporting sleeve spring and the clamping rod, the effect of a good shaping effect is achieved.

A patient interface structure includes a cushion configured to sealingly engage the patient's face and a front that is more rigid than the cushion. The cushion includes a forward opening, a rearward opening that is opposite the forward opening and a continuous sealing surface. The continuous sealing surface has a mouth sealing portion configured to seal around the patient's mouth and a nasal sealing portion configured to seal around both of the patient's nasal airways. The front plate includes an air inlet configured to both receive the pressurized respiratory gas and secure headgear to the patient interface structure. In addition, the nasal sealing portion includes at least one aperture that is separate from the rearward opening. Also, the front plate, the mouth sealing portion and the nasal sealing portion together form a common chamber.

A bottle cap is fastened on a bottle body in a covering mode, bottle openings are symmetrically arranged on the bottle cap, a partition plate is connected into the bottle body in an inserted mode, the partition plate corresponds to the position of a liquid outlet head on the bottle cap, the space in the bottle body is partitioned, and due to the double-bottle-opening structural design, the use functionality is higher.

The utility model discloses a double-air-outlet centrifugal fan with an improved tongue opening structure, which belongs to the technical field of centrifugal fan structure improvement and comprises an upper cover, fan blades and a base, a first air outlet and a second air outlet are arranged at the edge position between the upper cover and the base, and a second tongue opening is arranged between the first air outlet and the second air outlet. The second tongue opening comprises a front flow guide part, lateral flow guide parts are arranged on the two sides of the front flow guide part, a tail connecting part is arranged between the rear portions of the two lateral flow guide parts, a reference section is arranged in the middle of the second tongue opening, the section of the second tongue opening clockwise rotates around the circle center of an arc in the direction from the reference section to the base, and the rotation angle is gradually increased. The section of the second tongue opening rotates anticlockwise around the circle center of the arc in the direction from the reference section to the base, and the rotation angle is gradually increased. The air flow separation phenomenon at the position of the second tongue opening can be eliminated, the aerodynamic performance is greatly improved, meanwhile, the local high-low pressure gradient of the surface of the tongue opening can be reduced, and the sound quality is improved.

The utility model discloses a head-mounted lower jaw closing device, which relates to the technical field of medical instruments and comprises a head-mounted sleeve and a lower jaw belt, and the upper end of the lower jaw belt is fixedly connected to two sides of the head-mounted sleeve; a fixing plate is fixedly connected to the upper side of the bent part of the lower end of the lower jaw belt, threaded holes are formed in the fixing plate and the center point of the lower portion of the lower jaw belt, a tightening bolt is connected into the threaded holes in a threaded mode, and a lower jaw support is rotationally connected to the upper end of the tightening bolt through a bearing. According to the head-mounted lower jaw closing device, the lower jaw belt is worn on the head through the head-mounted sleeve, the adjustable lower jaw support is arranged at the lower end of the lower jaw belt, the lower jaw support is used for supporting the lower jaw upwards, a user is helped to close the tense mouth, and the head-mounted lower jaw closing device is simple in structure, convenient to wear and capable of being suitable for different crowds to use.

The utility model relates to a pneumatic soft robot mouth structure which mainly comprises a driving structure and a lip structure, the lip structure is composed of a conductive yarn braided fabric and a rubber hose, an air pipe is arranged in the rubber hose, and a dense braided area and a sparse braided area are distributed on the conductive yarn braided fabric so as to achieve different elasticity and conductivity. The air chambers are symmetrically distributed and connected with a lip structure through an adjusting structure such as a telescopic rod, and accurate control is achieved. The two ends of the rubber hose are connected with the air chamber through air pipes, the air pipes are sleeved with sliding blocks, branch air pipes are arranged in the air pipes and matched with sliding grooves in the air chamber, and the air flow can be adjusted. An arc-shaped communicating air pipe is arranged in the air chamber to ensure uniform distribution of air pressure. The whole structure is in universal connection, movement flexibility and stability are improved, the robot mouth can simulate natural movement of human lips, and the robot mouth is suitable for communication, expressions and specific function execution.

The utility model discloses a disposable isolation sleeve for dental photo curing machine, the isolation sleeve adopts medical grade transparent plastic integrated moulding, and the whole is the tubular structure, including the front joint adaptation section, main part cylinder section and tail part open section that connect in proper order along the axial direction, the exhaust hole that penetrates the inside and outside wall is opened in the middle part of main part cylinder section, can discharge the closed air chamber air formed when the front joint cover goes in quickly, eliminates the air pressure obstruction, the tail part open section is designed as the horn shape gradual change flared mouth structure, and the inside diameter of its export end is greater than the entry end, makes the button, the convex etc. of photo curing machine fuselage pass through smoothly, avoids the installation jam and the wrinkle. Through the structure optimization, the adhesion of isolation sleeve and photo curing machine has been improved significantly, and the isolation protection effect has been strengthened, and the clinical installation operation has been simplified, and reliable support is provided for the cross infection prevention and control of dental diagnosis and treatment.