23 results about "Tooth cavity" patented technology

The application discloses a pepper seed oil squeezing device, and particularly relates to the technical field of squeezing pretreatment, which comprises a pretreatment box, a movable tooth cavity block, a plurality of tooth gaps, a power unit, a tooth baffle and a linkage assembly. The movable tooth cavity block is slidably arranged in the pretreatment box. The plurality of tooth gaps are arranged on one side of the movable tooth cavity block. The power unit is arranged on the other side of the movable tooth cavity block. The tooth baffle is slidably arranged on the inner wall of the movable tooth cavity block. The tooth baffle is provided with the linkage assembly. The device can simultaneously crush the pepper seeds according to the pre-squeezing extrusion, and synchronously supply the pepper seeds with the biological enzyme solution at different positions according to the crushing power. The device can improve the biological squeezing pretreatment efficiency, and significantly save the energy consumption of the additional driving components, thereby solving the problems of low squeezing pretreatment efficiency and poor energy saving.

The invention discloses a Chinese prickly ash seed oil squeezing device, and particularly relates to the technical field of squeezing pretreatment, the Chinese prickly ash seed oil squeezing device comprises a pretreatment box, a movable tooth cavity block, a plurality of tooth gaps, a power unit, a tooth baffle and a linkage assembly, the movable tooth cavity block is slidably mounted in the pretreatment box; the tooth gaps are formed in one side of the movable tooth cavity block, and a power unit is installed on the other side of the movable tooth cavity block; the tooth baffle slides on the inner wall of the movable tooth cavity block, and a linkage assembly is arranged on one side of the tooth baffle. The device has the advantages that when pepper seeds are crushed according to pre-squeezing and squeezing, biological enzymatic hydrolysate supply contact at different positions is synchronously performed on the pepper seeds by utilizing crushing power, so that the efficiency of biological squeezing pretreatment is improved, and the energy consumption required by additionally arranging a driving part is remarkably reduced; therefore, the problems that the Chinese prickly ash seed squeezing pretreatment efficiency is low, and the energy-saving performance is poor are solved.

The utility model discloses a novel turbomachinery vector sealing structure. A vector sealing cavity is formed between a stator shell containing sealing teeth and a rotor. The vector sealing cavity is of a spray pipe type structure in mirror symmetry, and the spray pipe type structure comprises multiple stages of sealing cavities which are sequentially connected end to end and are provided with double throat parts; the sealing cavity is sequentially divided into an expansion section and a contraction section in the airflow flowing direction, and a tooth tip jet flow bypass is arranged between the contraction section and the throat part adjacent to the downstream of the contraction section; according to the thrust vectoring nozzle, the sealing cavity is designed to be of a thrust vectoring nozzle structure with a bypass channel, by means of tooth cavity pressure difference generated by the throttling effect, bypass jet flow is spontaneously driven to be mixed with main leakage flow, a leakage path is guided to directionally deflect in the circumferential direction and the radial direction, multi-dimensional reconstruction of a sealing flow field is achieved, and the dual purposes of reducing leakage and restraining fluid excitation are achieved. And a new method is provided for reducing sealing leakage and improving the excitation suppression performance of sealing fluid.

The utility model relates to the technical field of food canning equipment, in particular to a quantitative filling device for food canning, which comprises a filling table, and a direction adjusting mechanism, a filling mechanism and two groups of supporting grooves which are arranged on the filling table, the direction adjusting mechanism is composed of a rotating disc, a tooth cavity is formed in the lower end of the rotating disc, the rotating disc is connected with an adjusting motor installed on the filling table through the tooth cavity in the bottom, rotating teeth are assembled at the output end of the adjusting motor, the rotating teeth are completely matched with the tooth cavity in the bottom of the rotating disc, and the rotating teeth and the tooth cavity are tightly matched. Connection is achieved through cooperation of a bottom tooth cavity and a rotating tooth of an adjusting motor of a rotating disc in the direction adjusting mechanism, the design structure is relatively simple, the problems that a traditional direction adjusting mechanism is high in component integration degree and complex in structure are solved, when faults occur, troubleshooting and maintenance are easier, the equipment downtime can be effectively shortened, and the production efficiency is improved. The labor cost investment is reduced, so that the production efficiency is improved.

A malleable sustained release formulation is created utilizing a local anesthetic wherein the composition is made sustained release by incorporating it into a bovine or porcine hemostatic agent. The composition is malleable enough to fit into a cavity such as a dental cavity and form the shape of the cavity. In addition to providing sustained release of the anesthetic, the composition also provides quicker reduction in bleeding.

The present invention relates to the technical field of analysis and design of aero-engine air systems, and in particular to a method for calculating the leakage flow of non-uniform gap straight-through grate teeth. The method comprises the following steps: obtaining the inlet and outlet pressures of the non-uniform gap straight-through grate teeth; preliminarily selecting the pressures in tooth cavities of each level of grate teeth according to the inlet and outlet pressures; obtaining the flow rates of the tooth top clearances of each level of grate teeth based on the sizes of the tooth top clearances of each level of grate teeth; correcting the preliminarily selected pressures in the tooth cavities of each level of grate teeth according to a flow continuity condition; and determining the leakage flow rates of the non-uniform gap straight-through grate teeth after the tooth top clearance flow rates of each level of grate teeth meet an optimal condition. The method can accurately calculate the leakage flow rates of the non-uniform gap grate teeth.

The application discloses a flow distribution valve with adjustable distribution ratio function, which is provided with a liquid inlet channel, a first liquid outlet channel and a second liquid outlet channel in the main body of the flow distribution valve, a distribution ratio regulator is installed on the first liquid outlet channel, a distributor is installed on the second liquid outlet channel, the distribution ratio regulator and the distributor are both used for cutting off the communication between the liquid inlet channel and the corresponding liquid outlet channel, a proportioning distribution wheel structure with adjustable tooth cavity size is arranged in the distribution ratio regulator, the proportioning distribution wheel structure can carry the liquid in the liquid inlet channel to the first liquid outlet channel through the tooth cavity, and the distributor carries the liquid in the liquid inlet channel to the second liquid outlet channel through the tooth cavity. The application not only solves the problems of inconvenient adjustment and insufficient precision of the traditional flow distribution valve, but also has the advantages of structural optimization, convenient operation, strong adaptability and the like, can be widely applied to the fields of chemical industry, medicine, hydraulic systems and the like, and can improve the efficiency and reliability of fluid control.

The utility model discloses a dental instrument device which comprises a shell-shaped body and an auxiliary correction element group, the shell-shaped body is provided with a plurality of tooth cavities for accommodating teeth of a patient, and N through holes are formed in the same surface of the same tooth cavity; the auxiliary orthodontic element group comprises N auxiliary orthodontic elements, the N auxiliary orthodontic elements are respectively pasted on the same surface of teeth of a patient, and the pasting positions of the N auxiliary orthodontic elements are staggered; the setting positions of the N through holes and the pasting positions of the N auxiliary correction elements meet the following conditions: when the orthodontic device is worn, the N auxiliary correction elements respectively penetrate through the N through holes, and at least part of the edge of each through hole is in contact with the outer surface of the auxiliary correction element corresponding to the through hole; therefore, the shell-shaped body is prevented from being separated from the teeth of the patient or orthodontic force for assisting the teeth to move is generated. Wherein 2 < = N < = 10.

The utility model provides a kind of humanoid hand finger linkage structure, it is related to finger linkage technical field, including forefinger, the top of forefinger is equipped with middle finger, the top of middle finger is equipped with tail finger, the top of forefinger and close to edge fixedly connected with first arc plate, the top of middle finger and close to edge fixedly connected with second arc plate, the inside of middle finger is equipped with tooth cavity, the inside of tooth cavity is equipped with two driven gears, the inside of second arc plate is equipped with first rotating rod, the surface of first rotating rod and close to center place are equipped and fixedly connected with rotating gear, the surface of first rotating rod and close to both ends are equipped and fixedly connected with first fixed plate.In the utility model, through the cooperation of worm gear, worm, driving gear, driven gear and rotating gear, accurate power transmission can be realized, the adjustment movement of middle finger and tail finger is effectively controlled, transmission precision is high, the movement angle and speed of human finger can be accurately simulated.

The application discloses a brush wire bushing-containing labyrinth sealing structure, and belongs to the field of aero-engine sealing. The sealing structure comprises a plurality of labyrinths on a rotor rotating shaft and a brush wire assembly on an inner circumferential surface of a stator bushing. The plurality of labyrinths are arranged along the axial direction of the rotor rotating shaft, and form a plurality of annular non-closed cavity structures around the circumferential direction of the rotor rotating shaft, i.e. a plurality of tooth cavities, for reducing the speed of an upstream high-pressure airflow. The brush wire assembly comprises an annular front baffle on the inner circumferential surface of the bushing, a rear baffle and a brush wire bundle between the front baffle and the rear baffle. The inner end of the brush wire bundle is coupled with the labyrinth at the axial end of the rotating shaft, so as to realize end sealing. The sealing structure improves the sealing effect and reduces the gas leakage amount.

The utility model provides a kind of automatic material discharging frame of laver roll based on intelligent control, it is related to material discharging frame technical field, including chassis, the center of chassis is penetrated and is fixedly connected with support column, the inside of chassis is equipped with tooth cavity, the surface of support column and located tooth cavity inside sleeve and is fixedly connected with gear ring, the inside of tooth cavity and located gear ring one side is equipped with gear, gear and gear ring meshing connection, the surface of support column and close to top is equipped with lifting groove, the inside bearing rotationally connected with one-way screw of lifting groove, the surface of one-way screw is sleeved and is screw-connected with L type board.In the utility model, through the cooperation of chassis, support column, rotating rod, gear, gear ring, one-way screw and other structures, and the accurate control of intelligent control system to motor and other power components, accurate positioning and placement of laver roll in three-dimensional space can be realized, ensure that laver roll accurately enters subsequent processing station, improve processing quality, reduce the rate of defective products.

The invention discloses a diverter valve with an adjustable liquid separation proportion function, a liquid inlet channel, a first liquid outlet channel and a second liquid outlet channel are arranged in a diverter valve main body, a liquid separation proportion regulator is mounted on the first liquid outlet channel, and a liquid separator is mounted on the second liquid outlet channel. The liquid separation proportional regulator and the liquid separator respectively cut off communication between the liquid inlet channel and the corresponding liquid outlet channel, a proportional liquid separation wheel structure with a tooth cavity adjustable in size is arranged in the liquid separation proportional regulator, and the proportional liquid separation wheel structure can carry liquid in the liquid inlet channel to the first liquid outlet channel through the tooth cavity; the liquid separator carries liquid in the liquid inlet channel to the second liquid outlet channel through the tooth cavity. The split-flow valve solves the problems that a traditional split-flow valve is inconvenient to adjust and insufficient in precision, has the advantages of being optimized in structure, convenient to operate, high in adaptability and the like, can be widely applied to the fields of chemical engineering, medicine, hydraulic systems and the like, and improves the efficiency and reliability of fluid control.

The utility model discloses a hidden type emergency escape window opening and closing device which comprises a window body, an auxiliary frame and an opening and closing control mechanism installed on the auxiliary frame, rotating shafts are arranged at the two ends of the inner side of the auxiliary frame, the window body is movably installed in the auxiliary frame through the rotating shafts, and the opening and closing control mechanism comprises an opening and closing assembly. By arranging the window body, the auxiliary frame and the opening and closing control mechanism, when the window body is damaged, a driving piece and clamping teeth in the opening and closing assembly are matched with a tooth cavity formed in one side of a rotating shaft on the auxiliary frame for use, the whole window body can rotate by 90 degrees on the auxiliary frame, and under some emergency situations such as fire disasters or natural disasters, the window body can be opened and closed by 90 degrees. The position of the window body can be quickly changed, so that an additional escape path or a ventilation opening can be created, and meanwhile, compared with a traditional multi-mechanical-structure forming mode, by means of the mode that the driving piece and the rotating shaft are clamped, the structure is simpler, and follow-up manufacturing and maintenance are easy.

The invention relates to the technical field of production and processing of computer accessories, in particular to an extrusion device for computer accessories, which comprises a supporting table and an extrusion device, a mounting plate is fixedly mounted at the lower end of the supporting table through a support, and a cavity is formed in the periphery of a rotating shaft; and a double-inclined-surface tooth block which is connected with the positioning tooth cavity in an inserting manner is fixedly mounted in the concave cavity through a first spring. Through threaded connection between a first threaded rod and a first push plate and meshing connection between a first bevel gear and a second bevel gear, a first driving motor can drive all the first push plates to contract inwards or expand outwards through an output shaft of the first driving motor; and in cooperation with the elastic force of the first spring, when the first push plate on one side cannot move, the first driving motor can still drive the other first push plates to move, so that all the first push plates can make contact with the periphery of the computer accessory, and the effect of positioning the accessory is achieved.

A dental apparatus includes a handle, a first dental implement and a second dental implement. The first and second dental implements extend from different portions of a body of the handle. The first dental implement may include an elongated member that is straight, a spear extending from a distal end of the straight elongated member, and a barb connected to the body of the first elongated member, adjacent to the second end of the body of the first elongated member. The second dental implement may include a cone-shaped member having a plurality of nubs protruding from an exterior of the cone-shaped member and pointing generally toward an opening of a dental cavity when the cone-shaped member is inserted in the cavity.

This invention relates to the field of gear processing and casting technology, specifically to a casting and forming device for processing planar helical cylindrical gears. The device includes a worktable and a vertical block on the worktable. A first rotating gear disk is rotatably mounted on one side of the worktable, and a lower mold is mounted on the first rotating gear disk. A mounting base is located on one side of the vertical block, and a rotating column is rotatably mounted inside the mounting base. An electric telescopic rod is located inside the rotating column, and an upper mold adapted to the lower mold is located at the telescopic end of the electric telescopic rod. A rotating assembly is also included, comprising a lower rotating module and an upper rotating module. Compared to existing technologies, this application uses the upper rotating module to drive the upper mold and the lower rotating module to drive the lower mold to synchronously output micro-rotation in opposite directions, causing the relative motion of the two molds to exhibit a helical composite trajectory. This allows for unlocking before gradual disengagement when there is a mechanical engagement tendency between the helical positioning teeth and the tooth cavity.

The present application relates to the technical field of oral prosthetic treatment, and particularly relates to a fixed anti-falling finger sleeve for polishing a dental crown and a dental crown polishing method. The finger sleeve comprises a pinching structure and a supporting structure. The pinching structure comprises at least two pinching bodies, each of which comprises a finger sleeve and a connecting belt. The finger sleeve is used for sleeving a finger. One end of each of the connecting belts is connected with the finger sleeve, and the other ends are connected together to form a connecting disc. The supporting structure comprises a supporting rod and a supporting head. The supporting rod is arranged on the connecting disc, and the supporting head is arranged on the supporting rod and can be inserted into a tooth cavity of the dental crown. The finger sleeve can stably fix the dental crown, prevent the dental crown from slipping off during polishing, and simultaneously achieve the effects of heat insulation and safety protection.

The utility model discloses a V-tooth inlaying structure of a radiating tooth die-casting die, which is characterized by comprising a die core, an insert pressing plate and a plurality of inserts, an insert placing cavity is arranged in the middle of the die core, the inserts positioned on the left half part of the insert placing cavity are obliquely arranged along the right lower direction, and the insert pressing plate is arranged on the insert placing cavity. The inserts located on the right half portion of the insert containing cavity are obliquely arranged in the left lower direction, a heat dissipation tooth forming cavity is formed between any two inserts, the back face of the mold core is provided with a first sinking table for supporting the outer side ends of the inserts, the back face of the mold core is provided with a second sinking table for installing an insert pressing plate, and the insert pressing plate is locked to the second sinking table through a screw. The cantilever end of the insert is in locking connection with a screw in the middle of the insert pressing plate. The V-shaped tooth cavity structure has the beneficial effects that the V-shaped tooth cavity is formed by adopting the splicing structure, the machining difficulty is reduced, the machining period is shortened, the surface quality of the cavity is high, the polishing and grinding procedures are reduced, the manufacturing cost is reduced, the structural stability after splicing is high, and continuous and stable production is facilitated.

The present application relates to the field of metal plastic forming, and in particular to a plate forging method. The method comprises: forging a circular plate blank into a flanged cylindrical part; forging the flanged cylindrical part so that the material of the first cylinder wall region and the first flange region fully fills the annular unequal thickness tooth cavity of the plate forging device, thereby obtaining an unequal thickness tooth plate forging; forging the unequal thickness tooth plate forging into a cylinder wall thickening plate forging; forging the cylinder wall thickening plate forging so that the material of the third cylinder wall region fully fills the several circles of V-shaped tooth cavities and the annular protrusion cavity of the plate forging device, thereby obtaining a plate forging part. This method can reduce the risk of material buckling, improve product quality, and shorten the product process cycle.

The present invention provides a dental curable composition suitable for use as a structural color-based composite resin (CR) that has high radiopaqueness in its hardened form, is suitable for aesthetic restoration, and is suitable as a low-flow type flowable CR with fluidity, low dripping, and good moldability, allowing the paste to be directly filled into the cavity from the tip of a needle. [Solution] A dental curable composition comprising: a radical polymerizable monomer component (A); spherical inorganic powder (b) having a specific average particle size and particle size distribution, consisting of spherical inorganic particles having a refractive index greater than that of (A) and its cured form; a photopolymerization initiator; and an X-ray opaque filler (D) consisting of crystalline rare earth metal fluoride particles, wherein the full width at half maximum of the maximum intensity peak derived from the crystalline rare earth metal fluoride in the X-ray diffraction pattern is 0.3° or more, wherein the X-ray opaque filler (D) is composed of aggregated X-ray opaque filler (D1) and dispersed X-ray opaque filler (D2) in predetermined proportions.

An improved Mineral Trioxide Aggregate (MTA) filling material for dentistry and a device for its use to seal natural, pathogenic, or iatrogenic, tooth cavities. The filling material comprises Portland cement, or variations in the composition of such cement, calcium sulfate and a radio pacifier material. The improved filling material exhibits favorable physical and chemical attributes sufficient to form a biocompatible and effective seal against re-entrance of infectious organisms. A device for delivery of MTA filling material to the site of operation is also provided.

The application provides a stepped labyrinth sealing structure with a shunt passage. The shunt passage is arranged between the two steps of the sealing bush, so that part of the airflow is backflowed into the shunt passage before the tooth top of the second step, thereby inhibiting the leakage of the airflow. The inlet of the shunt passage is arranged between the first step and the second step of the bush, and the outlet is arranged on the second step. After the airflow flows through the first step of the labyrinth, the airflow is divided into two parts, one part of the airflow flows to the second step along the original labyrinth passage, and the other part flows into the shunt passage. The airflow in the shunt passage is subjected to the frictional resistance of the wall surface, so that the pressure is reduced. The pressure at the outlet of the shunt passage is lower than the pressure in the tooth cavity between the first step and the second step of the labyrinth, so that the airflow is backflowed into the shunt passage before the gap between the tooth tops of the second step of the labyrinth, and the leakage flow of the airflow is reduced. The method can improve the sealing performance of the labyrinth without affecting other system functions, without changing the structural parameters such as the size and position of the labyrinth sealing, and the method is simple and feasible.

The utility model relates to the technical field of tooth-shaped staple bolt machining, in particular to an automobile staple bolt tooth-shaped insert machining device. Comprising a tooth-shaped mold, two tooth array cavities are formed in the tooth-shaped mold in a mirror symmetry mode, the cross section of each tooth array cavity is an arc smaller than a semicircle, and each tooth array cavity comprises a plurality of tooth cavities; the tooth-shaped mold comprises a left mold body and a right mold body which can be separated, a first insert groove is formed in the left mold body, a second insert groove is formed in the right mold body, and the first insert groove and the second insert groove are correspondingly connected with a left insert and a right insert respectively. The left insert and the right insert are the same in structure, a concave groove is formed in the end, close to the tooth array cavity, of the right insert, a first convex part and a second convex part are arranged in the middle of the right insert, and the first convex part and the second convex part are oppositely arranged and located on the two sides of the right insert. According to the device, the staple bolt can be machined into an integrally-formed structure, the strength is higher, secondary machining is not needed, and the tooth profile and the staple bolt groove are machined in the same device.