72 results about "Tongue part" patented technology

The invention discloses a pronunciation correction data analysis method based on three-dimensional dynamic oral cavity modeling, and relates to the technical field of pronunciation correction, comprising the following steps: performing function fitting on historical reference points to obtain a normal pronunciation function; acquiring a normal pronunciation range based on the normal pronunciation function and the historical reference point; obtaining side views of the tongue part in the three-dimensional oral cavity modeling when the person to be analyzed pronounces and does not pronounce, and respectively marking the side views as a detection pronouncing diagram and a detection non-pronouncing diagram; scaling the detection pronunciation diagram based on the reference size and the detection unpronunciation diagram to obtain a detection correction diagram; judging whether abnormal pronunciation occurs based on the detection correction graph and the normal pronunciation range; the method is used for solving the problem that the accuracy of judging whether the position of the tongue is correct or not during pronunciation is low due to the fact that a method for judging the correct position of the tongue cannot be established through three-dimensional dynamic oral cavity modeling in an existing pronunciation correction technology.

A tensioner with retractable handle is provided, including a sheet metal base and a sheet metal handle. The sheet metal base is provided with a centre shaft in the middle thereon, the sheet metal handle includes a tightening part and a handle. A bottom of the tightening part is rotatably connected to the middle of the sheet metal base, an inner side of the tightening part is slidably connected with an upper baffle, and a bottom of the upper baffle is connected with two lower tongue parts. A rear end of the sheet metal base is provided with a lower baffle and a lower connecting plate, and the lower connecting plate is interlocked with the lower baffle. An inner side of a front of the sheet metal base is connected with a spring retaining plate, which is used to stop the gear from reversing and prevent the webbing from retracting.

The invention discloses a fire-fighting air valve structure, and relates to the technical field of fire-fighting air valves. The fire-fighting air valve structure comprises a valve frame, mounting boxes with opposite openings are fixedly connected to an upper wall plate and a lower wall plate of the valve frame in an embedded mode, a plurality of blade shafts are rotationally connected between the two mounting boxes at equal intervals, a pull rod and the lower end face of the valve frame are jointly and fixedly connected with a tension spring, and linkage units are jointly arranged between blades. The pin tongue part, the pin seat part, the limiting and locking mechanism and the sleeving and locking mechanism cooperate with one another to conduct multi-stage locking on the blade so as to ensure normal sealing between the blade and the valve frame, and through cooperation of the pin tongue part, the pin seat part, the limiting and locking mechanism and the sleeving and locking mechanism, multi-stage limiting and forced locking of the blade are achieved; and meanwhile, the sleeve locking mechanism carries out wrapping type locking on the upper sides and the lower sides of the blades, the connecting positions of the blades and the valve frame are effectively pressed, gaps caused by thermal deformation are prevented, and the overall smoke blocking and fireproof performance under the fire disaster working condition is enhanced.

A compressor according to one embodiment of the present disclosure is provided with a first discharge flow path that is partitioned by a first diaphragm and a second diaphragm and that connects an outer-diameter end of a first impeller and an inner-diameter end of a volute, and a plurality of spacer vanes disposed in the first discharge flow path. The volute includes a first portion that is in contact with a radially outer edge part of the diaphragm, a second portion that is connected to the downstream end of the first portion and does not contact the radially outer edge part of the diaphragm, and a second discharge flow path that is connected to the downstream end of the first discharge flow path inside both the first portion and the second portion. A first gap between spacer vanes that are adjacent via a first region containing a tongue part to which the first portion and the second portion are connected is wider than a second gap between spacer vanes that are adjacent via a second region not containing a tongue part.

The utility model discloses an insertion type long arm draw hook and a multi-hook buccal tube, the insertion type long arm draw hook comprises a tenon tongue part, a draw arm and at least one draw hook, the tenon tongue part is used for being installed on the buccal tube, the draw arm is connected to the side, away from the buccal tube, of the tenon tongue part, and a certain included angle is formed between the draw arm and the tenon tongue part; the traction hook is arranged at one end of the traction arm away from the tenon tongue part. A certain included angle is formed between the tenon tongue part and the traction arm, so that the traction arm can avoid gingiva, compression on the gingiva is effectively avoided, and the comfort level of a patient during wearing is further improved while the functionality of the traction arm in clinical application is ensured.

This article relates to a type of percussion instrument called a tone tongue, which produces a continuous sound with changing pitch by rotating a mallet (a percussion stick with a head) on the inside of multiple tongue-shaped wooden parts called tongues, or by inserting marbles or other objects and rotating them. The design of this application is an article in which the tone tongue and mallet are integrated, with the mallet housed in the center of the tone tongue. In this article, multiple tongue parts, which resemble flower petals, are arranged at an angle to the base to resemble an opening flower bud, the handle is formed to resemble a flower stem, and the mallet is formed to resemble a pistil. In this way, the central part, which resembles a receptacle with multiple petal-shaped tongue parts arranged in a circle, is provided with a recess for storing the mallet (a recess about 5 mm deep that can accommodate the diameter of the handle of the mallet), and the mallet is removed from the main body of the article when playing. Because each petal-shaped tongue is made from a different type of wood, the tone of each tongue is arbitrarily and freely determined to be different.

The utility model discloses an electric mortise lock, which belongs to the technical field of lock bodies and comprises a shell, a detaching piece, a spring bolt piece, a transmission mechanism and a driving mechanism. The disassembling piece is arranged in the shell and connected with the inner wall of the shell, an opening of the disassembling piece faces the spring bolt piece, and a transmission cavity is formed in the disassembling piece; the transmission mechanism and the driving mechanism are both arranged in the shell, and a telescopic shaft of the driving mechanism is connected with the spring bolt piece through the transmission mechanism so as to drive the spring bolt piece to retract into the transmission cavity or stretch out of the transmission cavity. According to the electric mortise lock, the problems that the machining precision of a shell of an existing electric mortise lock is not high, and unlocking and locking smoothness is affected due to the fact that a transmission cavity is not matched with a spring bolt piece are solved.

The utility model discloses a waterproof socket connector, which comprises a terminal assembly provided with a base body and a plurality of terminals combined in the base body, the base body is provided with a base part and a tongue part formed by forward extension of the front end surface of the base part; the inner shell piece is annularly arranged on the periphery of the terminal assembly and combined with the periphery of the base part, and the inner shell piece and the terminal assembly jointly define an annular insertion cavity; the elastic arm part is integrally formed in the inner shell part and convexly extends into the insertion cavity, the elastic arm part is used for being in elastic contact with a butting connector inserted into the insertion cavity, and the inner shell part is provided with a through process hole around the elastic arm part; the outer shell part comprises a covering part covering the periphery of the inner shell part; the closing part is formed on the covering part and at least covers the fabrication hole; the annular groove part is formed in the mode that the surface of the side, attached to the inner shell, of the covering part sinks towards the side away from the inner shell, and the annular groove part surrounds the closed part by a circle; and the waterproof piece is filled in the annular groove part.

The application discloses a cam mechanism for high needle and high density fabric, which comprises a cam seat, a first cam, a second cam and a third cam arranged on the cam seat, wherein the lower edge of the first cam and the upper edge of the third cam form a knitting track for limiting the movement of the needle, the lower edge of the third cam and the upper edge of the second cam form an auxiliary track for limiting the old loop of the upper needle, the auxiliary track is provided with a protrusion protruding upward on the upper edge of the second cam, the protrusion can lift the needle upward when the needle does not perform the knitting task, the top of the needle can block the old loop of the upper needle, the old loop of the upper needle is prevented from being clamped at the needle tongue part, the old loop of the upper needle is helped to be released, the function of assisting the old loop of the upper needle to be released is realized, and the knitting of the high needle and high density transfer loop fabric is realized.

The utility model relates to the technical field of connectors, in particular to a type-c connector, which is provided with a tongue part, an inner shell sleeved outside the tongue part and a fixing piece connected with the inner shell, and the connecting end of the tongue part is provided with an annular mounting seat and a supporting seat; when the tongue part is sleeved with the inner shell, the supporting seat is sleeved with the inner shell, and the inner shell abuts against the side wall of the inserting end, facing the tongue part, of the mounting seat; the mounting seat and the supporting seat are arranged at an interval to form a flowing groove; a dispensing opening communicated with the flowing groove is formed in the mounting seat in a penetrating manner; according to the application, glue can be added into the dispensing port, and then the flowing groove is filled with the glue, so that bonding and fixing between the inner shell and the tongue part can be realized, and the operation is convenient; the glue can wrap the circumferential side wall of the tongue part along the flowing groove, so that the glue can be integrally annular under the limitation of the flowing groove, the solidified glue can be connected with the circumferential side wall of the tongue part and the inner side wall of the inner shell in the circumferential direction in a bonding mode, and bonding and fixing between the tongue part and the inner shell are achieved.

The application relates to a standardization collection method of a tongue diagnosis image and a related device, which comprises the following steps: obtaining a plurality of continuous tongue diagnosis collection images; in response to the obtained tongue diagnosis collection image, analyzing the tongue diagnosis collection image to determine that the image comprises a mouth part and a tongue part; extracting and analyzing the tongue diagnosis collection image to extract a plurality of mouth feature areas and tongue feature areas; analyzing each mouth feature area and each tongue feature area to obtain a corresponding tongue feature model; obtaining a plurality of model parameters in the tongue feature model, calculating a matching value based on the model parameters, and determining a tongue diagnosis image determination result based on the matching value. The application has the advantages of conveniently providing a standard tongue diagnosis image for a patient, and improving tongue diagnosis efficiency.

The utility model provides a kind of terminal assembly and electric connector.The terminal assembly includes first terminal and second terminal.The first terminal includes: first clamping part, for clamping and electrically connecting first wire;And elastic clip.The second terminal includes: second clamping part, for clamping and electrically connecting second wire;And plug-in tongue part.The plug-in tongue part is inserted into the elastic clip, and the elastic clip clamps the plug-in tongue part inserted, to realize the electric connection between the first terminal and the second terminal.The terminal assembly of the utility model can realize the electric connection of wire of different diameters.It is convenient to assemble, saves space and manufacturing cost, and improves production efficiency.

An apparatus and method are provided to automate the cutting of tongue and cheek pieces from fish heads such as cod heads. The apparatus comprises a mounting member for mounting a fish head on, also referred to as a "shuttle", comprising an elongated mounting rod on which a fish head of desired size can be mounted, with two oppositely and symmetrically arranged jaw stopping members that extend sidewise from the mounting rod, such that the jaw of a mounted fish head stops by the jaw stopping members. The mounting rod has a bulging section that pushes down the tongue piece of a mounted fish head when the jaw stops on the jaw stopping members. The apparatus comprises a first cutting knife arranged to cut the tongue part of a, and at least two oppositely arranged cheek cutting knives for cutting off cheek portions.

The application discloses a kind of flatting mill roll dismounting device and method of roll replacement technical field, including fixed part, radial support part is equipped on fixed part, axial push-pull part, fixed stop part and lifting stop part, and lifting stop part can be set between fixed stop part and axial push-pull part and be lifted;Bearing drawing part, bearing drawing part can be detachably fixed with axial push-pull part Connection, and including cylinder part and radial key tongue part;Bearing press mounting part, bearing press mounting part can be detachably fixed with axial push-pull part Connection, and including barrel part and press mounting part.The application makes that roll dismounting does not need big hammer to knock work, can avoid inner main shaft handling operation, and greatly improve the construction efficiency of wrinkle-free and breakage prevention roll assembly operation, reduce personnel labor load and construction risk.

A trailer anti-theft coded lock comprises a sleeve, a lock shell fixedly connected to the sleeve, a coded lock cylinder assembly arranged in the lock shell and a spring bolt, the spring bolt is provided with a spring bolt compression spring, the spring bolt compression spring enables the spring bolt to partially stretch into the sleeve, a rotary knob is arranged on one side of the lock shell, and in the unlocking state, the lock cylinder assembly can be locked and unlocked. The slope surface of the knob acts with a lock cylinder shaft of the coded lock cylinder assembly, so that the lock cylinder shaft axially moves, the coded lock cylinder assembly further comprises a middle transmission part and a reset spring, the lock cylinder shaft and the sleeve form an elastic reset structure through the middle transmission part and the reset spring, and meanwhile, the middle transmission part and the spring bolt form linkage through the slope surface; according to the anti-theft coded lock for the trailer, the lock can be unlocked and locked by means of a correct password set by a user, so that inconvenience caused by forgetting to carry a key or losing the key is avoided, and the trailer is effectively prevented from being stolen due to being dragged away by other people.

The invention discloses a noise reduction type centrifugal fan structure and relates to the technical field of centrifugal fans. A first volute tongue part is arranged at the joint of an air outlet and a shell, a second volute tongue part is arranged at the tail end of the first volute tongue part, and the second volute tongue part inclines towards the side close to an impeller, so that a gap between a volute tongue and the impeller is further reduced; the air accelerated by the centrifugal force of the impeller is prevented from entering the shell again through the gap to affect the operation efficiency of the fan, a plurality of flow guide pieces are arranged on the side, close to the impeller, of the second volute tongue part at equal intervals, and a flow guide channel is formed between every two adjacent flow guide pieces. The width of the flow guide piece is gradually increased in the gas flowing direction, so that the flow guide channel is gradually reduced in the gas flowing direction, and when part of gas enters the shell through the gap, the flow speed of the gas can be increased through the flow guide channel; pressure exchange between gas entering the shell through the space between the volute tongue and the impeller and accelerated gas in the shell is avoided, and periodic pulses are formed.

Tactile sensor (1) comprising: a strain layer (11) having an annular part (11a) and a tongue part (11b) projecting inwards from the annular part, the tongue part being provided with a strain gauge (113); a first sealing layer (12) stacked on a main surface of the strain layer to seal a first space (11c) surrounded by the annular part of the strain layer; a spacer layer (13) having an annular part (13a); and a second sealing layer (14) stacked on a main surface of the spacer layer to seal a second space (13c) surrounded by the annular part of the spacer layer, the strain layer and the spacer layer being stacked such that the other main surface of the strain layer faces the other main surface of the spacer layer, and a closed space (1c) being formed in which the first space and the second space are interconnected.

The utility model discloses a flaring structure of an air outlet in a blowing fan frame, which comprises an upper cover, a base and a fan blade group, after the upper cover is matched with the base, a divergent air outlet is formed at the lower end of the upper cover, the base comprises a side vertical surface and a bottom plate, a tongue part is arranged on the side vertical surface, and the bottom plate comprises an air collecting area and an air outlet area. The flaring structure has the advantages that the structure that the bottom plate of the base is gradually thinned in the direction of the air outlet and the structure that the height of the air outlet in the vertical direction is kept unchanged are adopted, the flaring effect is achieved, the equal-thickness structure of the bottom plate of a frame body in the prior art is replaced, and the purposes of increasing the heat dissipation area and increasing the air outlet amount are achieved.

The invention discloses a waterproof socket connector, which comprises a terminal assembly provided with a base body and a plurality of terminals combined in the base body, the base body is provided with a base part and a tongue part formed by forward extension of the front end surface of the base part; the inner shell piece is annularly arranged on the periphery of the terminal assembly and combined with the periphery of the base part, and the inner shell piece and the terminal assembly jointly define an annular insertion cavity; the elastic arm part is integrally formed in the inner shell part and convexly extends into the insertion cavity, the elastic arm part is used for being in elastic contact with a butting connector inserted into the insertion cavity, and the inner shell part is provided with a through process hole around the elastic arm part; the outer shell part comprises a covering part covering the periphery of the inner shell part; the closing part is formed on the covering part and at least covers the fabrication hole; the annular groove part is formed in the mode that the surface of the side, attached to the inner shell, of the covering part sinks towards the side away from the inner shell, and the annular groove part surrounds the closed part by a circle; and the waterproof piece is filled in the annular groove part.

The application relates to an electric connector technology and discloses a waterproof wiring terminal seat which comprises a shell and a terminal seat arranged in the shell, the terminal seat is provided with a terminal group, the shell is provided with a receiving cavity with an opening facing a lower surface and a wire tail extending outwards in an inclined mode, the terminal seat is provided with a main body arranged in the receiving cavity, a terminal groove for arranging the terminal group is arranged on a lower surface of the main body, the terminal group is composed of a plurality of terminals, each terminal is provided with a fixing part matched with the terminal groove, flaps are arranged on both sides of the fixing part, and a tongue part is protruded outward from an edge of a head part of the flap; a clamping table matched with the number of the terminals is arranged on a front surface of the main body, the clamping table is adjacent to the terminal groove, each terminal is arranged in the terminal groove, and the tongue part is clamped on an end surface of the clamping table. Through the technical scheme, the technical problems of waterproofing and assembly damage prevention are solved, and the effects of improving quality and reducing cost are realized.

The invention relates to the technical field of foot pads for shoes, discloses a foot pad arch bearing type half sole structure and an elastic force generation method thereof, and solves the problems that an existing half sole foot pad is redundant in structure, poor in deformation synergy and indefinite in elastic force principle. The forefoot structure is integrally designed and is composed of a flat-plate-shaped upper tongue part (attached to the forefoot) and an arc-shaped protruding lower tongue part (with the curved surface facing downwards), the tail ends of the flat-plate-shaped upper tongue part and the arc-shaped protruding lower tongue part are integrally formed and closed (the process comprises injection molding, splicing and the like and is unlimited), a U-shaped opening (the width is 1 / 3-1 / 2 of the total width, and the depth is 1 / 4-1 / 3 of the total length) is formed in the front end of the flat-plate-shaped upper tongue part and the arc-shaped protruding lower tongue part and is made of carbon fibers, titanium alloy and the like, and the elastic modulus ranges from 100 When elastic force is generated, the front sole exerts pressure to enable the deformation quantity of the front end to be larger than that of the tail part, bending of the upper tongue part and stretching of the lower tongue part to cooperatively deform, and the springback strength and speed are regulated and controlled through the elastic modulus of materials. The device is synchronous in deformation, clear in principle, adaptive to multiple scenes, adaptive to different shoe types in size proportion and high in compatibility.

The utility model belongs to the technical field of electric connectors, and discloses a waterproof connector, which comprises a body assembly and a shell, the body assembly comprises a base part, a tongue part and a terminal, the base part and the tongue part are arranged at an interval, and the base part and the tongue part are connected through the terminal; the shell covers the outer side of the body assembly, so that a glue accommodating space is formed between the base part and the tongue part; a fastening groove is formed in the tongue part in the circumferential direction of the tongue part, a notch is formed in the groove wall of the fastening groove, and the fastening groove is communicated with the glue containing space through the notch. The fastening groove is formed in the tongue part in the circumferential direction of the tongue part, when glue injection sealing is carried out, the sol space and the fastening groove can be filled with waterproof glue, the contact face between the waterproof glue and the tongue part is increased, and then the phenomenon that the waterproof glue is bonded and separated from the tongue part in the using environment is reduced; and the adhesive waterproof stability is improved.

The utility model relates to an integral type high-energy-efficiency wind cabinet volute tongue, in particular to an anti-turbulence integral type high-energy-efficiency wind cabinet volute tongue which comprises a volute assembly, a volute tongue assembly and an impeller assembly, the volute tongue assembly is arranged on one side of the inner wall of the volute assembly, the impeller assembly is arranged on one side of the inner wall of the volute assembly, and the volute tongue assembly comprises a volute tongue piece. The hanging lug is welded to the outer wall of one side of the volute tongue piece, the volute tongue piece is installed on the inner wall of the volute assembly through a bolt, the volute tongue piece is integrally formed, and a plurality of through holes are formed in the outer walls of the two sides of the volute tongue piece. The volute tongue piece is designed according to the principle that a triangle is most stable, the volute tongue piece is fixed by three points respectively, the volute tongue piece is very firm, deformation and displacement cannot be generated in the using process, secondary damage to an impeller cannot be caused, and the volute tongue piece is absolutely safe and reliable. Air moves forwards at a reasonable expansion angle, the principle of aerodynamics is met, aerodynamic resistance can be reduced, and the total pressure efficiency of the air cabinet is improved.

To provide a crimp terminal having a structure to be attached without using a screw.SOLUTION: A crimp terminal 1 is made of a material having both conductivity and machinability, and a tongue part 3 is provided with a hole 4 penetrating therethrough, a plurality of slits 5 cut out radially from the hole 4 toward an outer peripheral side of the tongue portion 3, and a plurality of blades 6 partitioned by the slits 5. Each blade 6 has a protruding portion 7 protruding downward from a tip portion thereof. In a wire connection destination, an attachment hole having a larger diameter is provided in advance on a deeper side than an opening part, and when the crimp terminal 1 is mounted, the tongue part 3 is positioned with respect to the attachment hole. An attachment tool is pushed downward in a state in which a tip part thereof is aligned with the hole 4. As a result, the blade 6 is plastically deformed, an edge plate of the attachment hole is sandwiched between the blade 6 and a protrusion part 7. The protrusion part 7 engages with the edge plate, whereby the tongue 3 is connected. As described above, the crimp terminal 1 can be easily attached to the wire connection destination simply by being pressed by the attachment tool without using a screw.SELECTED DRAWING: Figure 1

The utility model relates to the technical field of automobile suspensions, and provides a spring cushion and a suspension spring assembly. The spring cushion is provided with a containing groove for assembling an end ring of the suspension spring, the containing groove is provided with a first supporting part and a second supporting part, the first supporting part is used for fixedly contacting the end ring of the suspension spring, the second supporting part is used for movably contacting the end ring of the suspension spring, and the thickness of the second supporting part is larger than that of the first supporting part. The tail end of the second supporting part is provided with a tongue part protruding away from the suspension spring. According to the spring cushion, due to the design that the thickness of the second supporting part which is in movable contact with the end ring of the suspension spring is larger than that of the first supporting part which is in fixed contact with the end ring of the suspension spring, the vibration reduction effect of the second supporting part is effectively enhanced, and the vibration reduction and noise reduction requirements under the condition that the amplitude of a suspension is large are met; by means of the protruding tongue part arranged at the tail end of the second supporting part, contact deformation of the tongue part and a matching part under the condition that the amplitude of the suspension is large is achieved, vibration energy is absorbed, and the vibration reduction and noise reduction performance is further improved.

The invention provides a motor lock, and relates to the technical field of locks, the motor lock comprises a lock body and a lock disc matched with the lock body for use, the lock disc is provided with a lock groove, the lock body comprises a driving piece and an L-shaped rack connected with the driving piece, the L-shaped rack is connected with a spring bolt part, and the spring bolt part is connected with the lock groove. The spring bolt part is driven by the driving piece and the L-shaped rack to move so as to perform locking and unlocking actions; the L-shaped rack comprises a rack body connected with the driving piece and a transmission plate connected with the spring bolt part, one end of the rack body is connected with the transmission plate, and an included angle A is formed between the rack body and the transmission plate. The L-shaped rack is arranged, the L-shaped rack is composed of the rack body and the transmission plate, the included angle A is formed between the rack body and the transmission plate, and by changing the angle between the rack body and the transmission plate, the stroke of the transmission plate can be changed under the condition that the stroke of the rack body is kept unchanged, namely, the driving stroke of the transmission plate to the locking part is changed; therefore, various different travel requirements can be met.

The invention belongs to the technical field of injection pens, and particularly relates to an excitation and locking structure and an injection pen. The excitation and locking structure comprises a pen body, the propelling part is arranged in the pen body in an axial moving manner; the excitation piece is arranged in the pen body, the excitation piece comprises two first elastic tongue parts, and each first elastic tongue part is connected to the outer wall of the pushing piece in a clamped mode; the limiting guide piece is arranged on the outer wall of the excitation piece in a sleeving mode in an axial moving mode, and in the non-excitation state, the first elastic tongue part is limited in the limiting guide piece in the radial direction; the locking piece is located between the excitation piece and the limiting guide piece; wherein during excitation, the limiting guide piece drives the locking piece to axially move in the direction far away from the needle head; the first elastic tongue part is separated from the outer wall of the propelling part after being separated from the limiting of the limiting guide part, so that the propelling part moves towards the needle head.

A turbine housing that accommodates at least a part of a turbine wheel, the turbine housing being provided with: a first scroll flow path for supplying a working gas to the turbine wheel; and a first tongue part formed at the position of the outlet of the first scroll flow path, the first tongue part including an inner edge facing the leading edge of the blade of the turbine wheel across a gap in the radial direction of the turbine wheel in a cross-section along the axial direction of the turbine wheel, the inner edge including at least one inclined part inclined with respect to the axial direction, and the inclined part being formed at the position of the outlet of the first scroll flow path. The inner edge is configured so as to satisfy B > = 0.2 A, where A is the size of the range in which the leading edge is provided in the axial direction, and B is the sum of the sizes of the ranges in which each of the at least one inclined portion is provided in the axial direction.

The utility model discloses a socket connector, comprising: a terminal assembly comprising a first terminal group, a second terminal group and an insulating body for fixedly holding the first terminal group and the second terminal group as a whole, the insulating body comprising a base part and a butt joint tongue part formed by forward extension from the base part; the metal shell comprises a tubular main body part with two open ends and an inflection part which is formed by inflecting the rear end edge of the main body part inwards and forwards; the metal shell is fixed on the periphery of the base part in a sleeving manner, the metal shell and the base part jointly define an insertion space with an opening in one end, and the butt joint tongue part protrudes forwards from the base part to form a cantilever shape; and the inflection part is attached to the outer surface of the base part and is forwards exposed out of the base part. The waterproof structure has the advantages of good stopping effect, convenience in manufacturing, low cost, convenience in waterproof design and the like.

A tactile sensor includes: a strain layer including a ring part and a tongue part protruding inward from the ring part, the tongue part being provided with a strain gauge; a first sealing layer stacked on one main surface of the strain layer to seal a first space surrounded by the ring part of the strain layer; a spacer layer including a ring part; and a second sealing layer stacked on one main surface of the spacer layer to seal a second space surrounded by the ring part of the spacer layer, the strain layer and the spacer layer being stacked so that the other main surface of the strain layer faces the other main surface of the spacer layer, and a closed space in which the first space and the second space communicate is formed.