107results about How to "Adjustable elastic" patented technology

The inventive vibration absorber comprises an execution unit, a control unit and a sensor. The execution unit consists of a magnetic inductor, a coil, a magnetic rheological elastic body, a vibration-absorbing mass block and a base. The above magnetic inductor consists of inner and outer sleeves, or a U-shaped iron-core and an armature or top and bottom plates and a column iron-core. Between inner and outer sleeves, the U-shaped iron-core and the armature or the top and bottom plates are filled the magnetic rheological elastic bodies. By regulating the voltage on the coil, the rigidity and the elasticity of the magnetic rheological elastic body are regulated to make its vibration frequency change, so as to make the vibration frequency of the vibration absorber execution unit is the same as that of the vibration-damping object.

The invention relates to a thermoplastic elastomer toughened epoxy resin, its preparation and its application, which belongs to the technical field of changing the physical index of epoxy resin. The raw materials possess the following weight proportion: 1) 100 parts of epoxy resin, 2) 15-40 parts of curing agent, 3) 2-20 parts of thermoplastic elastomer, 4) 5-100 parts of compatilizer and 0.5-5 parts of auxiliary agent; the compatilizer employs one or more selected from rosin and modified rosin, petroleum resin, coumarone indene resin, aromatic oil, naphthenic oil and solvent oil, the auxiliary agent employs one or more selected from calcium stearate, zine stearate and EBS. The method of the invention solves the compatibility of the thermoplastic elastomer and epoxy resin, and effectively improves the brittleness of epoxy resin, the property of a solidified substrate is capable of adjusting, and the manufacturability is capable of adjusting; the product of the invention has the advantages of environmental protection, good security and good economic applicability.

The invention discloses a hose bundle which comprises an annular pipe hoop with an opening at the tail end, and mutually matched interlock component I and an interlock component II, wherein the interlock component I comprises an auxiliary component I, a ratchet bar and a convex ring I; the ratchet bar and the convex ring I are mutually parallel and kept at a set gap I; the convex ring I is at the lower part and the ratchet bar is at the upper part; a ratchet is toward the auxiliary component I; the interlock component II comprises a convex ring II, an open pore convex ring, a lock element and an auxiliary component II; the convex ring II and the open pore convex ring are mutually parallel and kept at a set gap II; the convex ring II is at the upper part; the open pore convex ring is at the lower part; the open pore convex ring is matched with the gap I; the ratchet bar is matched with the gap II; a mounting hole matched with the lock element is arranged on the open pore convex ring in an axial direction; and the gap II is communicated with the mounting hole, and the ratchet matched with the ratchet bar is arranged at the upper end of the lock element. The hose bundle disclosed by the invention is convenient to dismantle and mount, adjustable in tightness and not easy to deform.

The invention relates to a lifting screen, comprising a supporting frame; wherein the supporting frame is internally provided with a stainless steel winding drum assembly, the stainless steel winding drum assembly comprises a stainless steel winding drum, the stainless steel winding drum is internally provided with a concentric first gear shaft and an eccentric second gear shaft, the first gear shaft and the second gear shaft are meshed, and the second gear shaft is sheathed with a steel wire rope winding drum and is arranged in the stainless steel winding drum by virtue of a supporting member; the first gear shaft is connected with a reducer motor; the steel wire rope of the stainless steel winding drum is suspended with a screen curtain, the screen curtain is provided with an upper rod and a lower rod; the rotating shaft of the stainless steel winding drum is provided with an electromagnetic brake, the electromagnetic brake and the reducer motor are all connected with an electrical control system arranged in an electrical box; and the lower side edge axial length of the stainless steel winding drum is opened with a notch for containing the upper rod of the screen curtain. The invention has the beneficial effects that structure is compact, occupying space is small, performance is stable, action is reliable, noise is less, and cost is low.

The invention discloses a gel cleaning agent for lampblack on the surface of a polychrome cultural relic. The gel cleaning agent for lampblack on the surface of the polychrome cultural relic comprises, by mass, 0.5%-1.5% of Carbomer 940, 0.05%-0.15% of ammonium hydroxide, 0.05%-0.25% of N,N'-bi-(2-ethoxy)-oxamide, 0.005%-0.015% of kieselguhr, 0.005%-0.015% of non-ionic surface active agent and the balance distilled water. The transparent alkaline gel cleaning agent is prepared based on the slow-release property and the adsorbability of gel, the method for preparing the gel cleaning agent is simple, the gel cleaning agent does not flow in use and is easy to control, contact type cleaning can be achieved, environment-friendly cleaning of the surface of the cultural relic is achieved by controlling and releasing cleaning components to dissolve and absorb lampblack on the surface of the cultural relic, and the gel cleaning agent is suitable for removing lampblack on the surfaces of various objects such as colored paintings, metal and stone and has a certain application prospect in the aspect of cleaning objects polluted by household and industrial lampblack.

The invention discloses a three-work-station dual-ground-connection load switch which comprises a support and an insulating spindle. The insulating spindle is driven by a driving mechanism, a plurality of contact cutters extending in the radial direction are arranged on the insulating spindle, the contact cutters can rotate to the switch-on position along the insulating spindle to switch on an upper static touch seat and a square conductor, the upper static contact seat is connected with an input cable, a high-voltage fuse is in serial connection between the square conductor and the output cable, two output lines are arranged at the output end of the high-voltage fuse, one output line is connected with the output cable, and the other output line is connected with an auxiliary ground connection contact seat. When the contact cutters rotate to the switch-off position along the insulating spindle, circuital current is cut off. When the contact cutters rotate to the ground connection position along the insulating spindle, the auxiliary ground connection contact seat and the square conductor are connected with a main ground connection seat which is always connected with the ground. The load switch can simultaneously achieve operation of three work stations and dual ground connection of the high-voltage fuse. Furthermore, the load switch is convenient to install and maintain, improves overhauling and replacing work efficiency and improves operation safety.

The invention discloses an electric wire connector that can reduce the labor intensity and has relatively good wiring quality. The electric wire connector comprises a wire connector main body, a wiring mechanism, a driving mechanism and an electric wire fixing device; the wiring mechanism comprises a wiring shaft rotatably arranged on the wire connector main body, and the driving mechanism is arranged on the wire connector main body and is in transmission connection with the wiring shaft; and the electric wire fixing device is arranged on the wire connector main body, and a clamping and fixing position of the electric wire fixing device corresponds to one end of the wiring shaft. The electric wire connector is used for connecting power lines, the thread residues are uniformly twined, the compactness is proper, and the lapping parts are sufficient, thereby being conducive to guaranteeing the contact performance of electric wires, meanwhile, the labor intensity is reduced, the wiring efficiency is improved, and moreover, the quality and efficiency of twining insulating tapes are improved.

The invention discloses a mango peeling machine. The machine comprises a peeling mechanism, wherein the peeling mechanism comprises a support, a pressing device, a rotation device, three tensioning devices and two cutter driving devices; the pressing device, the rotation device and the tensioning devices are fixed on the support; the cutter driving devices are in sliding connection on the rotationdevice; the pressing device comprises two pressing components; the two pressing components are connected with the rotation device respectively through a synchronous pulley and a synchronous driving belt; the rotation device can be used for driving the two pressing components to rotate; each pressing component comprises a spline long axis, a spline axle sleeve which is in sleeved connection with the spline long axis, a pressure spring arranged in the spline long axis and a briquetting head connected with the pressure spring; the cutter driving device comprises a rotating block, a pushing cylinder, a pushing block, an angle top ejection block and an elasticity ejection block, the rotating block is hinged with the pushing block, the pushing cylinder is connected with the pushing block, the elasticity ejection block is connected with the rotating block through the pressure spring, and the angle ejection block can be supported against the pushing block. The mango peeling machine has the characteristics of compact structure, low cost and high production efficiency.

The invention discloses an automatic obstacle-avoiding weeding machine for orchards, and belongs to the technical field of agricultural machinery. The automatic obstacle-avoiding weeding machine comprises a suspension device, a main weeding mechanism, walking speed measurement mechanisms, obstacle avoidance contact mechanisms, inter-plant weeding mechanisms, a lifting mechanism and an auxiliary control device, wherein the suspension device is arranged on the upper portion of the main weeding mechanism, the walking speed measurement mechanisms are arranged on the lower portions of the two sides of the main weeding mechanism, the obstacle avoidance contact mechanisms are arranged on the upper portions of the two sides of the main weeding mechanism, the inter-plant weeding mechanisms are arranged on the two sides of the rear portion of the main weeding mechanism, the inter-plant weeding mechanisms and the main weeding mechanism are connected through the lifting mechanism, the auxiliary control device sends out signals to control movement of the lifting mechanism, and therefore, the automatic obstacle-avoiding weeding machine can achieve the functions of weeding and automatic obstacle avoiding. According to the invention, automatic obstacle avoidance can be effectively and accurately realized, inter-plant weeds are removed, the weeding effect is improved, meanwhile, fruit trees can be protected from being damaged, and after crushed weeds are mixed with loose soil, the soil is loose, and the fertility is improved.

The invention relates to a mechanical arm for an automatic blood type detector. The mechanical arm comprises a support, a drive motor, a first sensor, a second sensor and two linear guide rail assemblies, wherein the drive motor, the first sensor, the second sensor and the two linear guide rail assemblies are mounted on the support. A crank wheel is fixed on the drive motor. The two linear guide rail assemblies are connected with the crank wheel through connecting rods respectively. A clamping piece is fixed on each linear guide rail assembly. A tension spring is connected between the two clamping pieces. The mechanical arm for the automatic blood type detector has the advantages that a crank, the connecting rods, the linear guide rail assemblies and the tension spring are matched so that the elastic force of the tension spring can be adjusted to guarantee that the clamping force on a blood card is constant, and the defect that the clamping force is insufficient or overmuch due to the fact that the motor directly drives the clamping pieces is overcome; when fingers are in an opened or closed state, the elastic force of the tension spring and mechanical limiting are used for maintaining the state, and the motor is in a non-operating state at the same time, so that the energy-saving effect is good; the control mode is simple because the motor only needs to be driven to rotate forwardly or reversely; the mechanical structure is simple, and cost can be effectively lowered.

The invention relates to the technical field of one-way valves, and discloses a throttle valve with a cleaning structure and a flow-slowing structure and capable of adjusting the flow rate. Accordingto the throttle valve, a screw rod (8), a supporting plate (9), a threaded joint (10), a clamping plate (14), a brush (20) and the like are arranged, water flow pushes the clamping plate (14) so thatthe supporting plate (9) can move and rotate on the screw rod (8) through the threaded joint (10), and therefore the brush (20) on the clamping plate (14) is driven to clean the interior of a valve body; and meanwhile, a buffer spring (13) is matched to drive the supporting plate (9) to move and rotate back and forth, and therefore the brush (20) can clean the interior of the valve body all the time, sundries such as moss which can destroy water quality can be prevented from growing in the valve body, periodical cleaning is not needed, and the labor burden of workers can be greatly reduced.

The invention relates to a furniture elastic positioning rotating storage structure, which comprises a furniture storage element and at least two slide rail assembles. The furniture elastic positioning rotating storage structure is characterized by also comprising an elastic positioning rotating device, wherein the at least two sets of slide rail assembles are in mutually independent vertical arrangement and respectively comprise mutually sliding opening and closing movable side rails and fixed slide rails; the furniture storage element realizes the movable opening and storage through the matching of the movable slide rails and the fixed slide rails, and realizes the clockwise and / or anticlockwise elastic hovering and elastic positioning rotation between the at least two sets of slide rail assemblies through the elastic positioning rotating device at least at the movable opening moment. Through the structure improvement, the furniture elastic positioning rotating storage structure has the characteristics that the structure is simple and reasonable; the performance is excellent; the assembly is fast and convenient; the operation is convenient; the storage space is great; the use range is wide; the manufacturing cost is low; the production is easy; the realization is easy; safety and reliability are realized, and the like. The practicability is high.

The invention discloses an elastic armpit crutch which comprises an upper support, a spring buffering pipe and a lower supporting rod. The bottom of the upper support is connected with the spring buffering pipe, and the lower portion of the spring buffering pipe is connected with the lower supporting rod. When the elastic armpit crutch is used for assisting a user in walking, rigid impact of the bottom end of the crutch on the ground is buffered through a spring, impact on the armpit of the user is greatly reduced especially when the elastic strength and the elastic stroke are adjusted, different requirements of the user can be met, comfortableness of the user is improved, the structure is simple, less materials are used, the weight of the crutch is not few increased, and the elastic armpit crutch is easy to produce.

The invention relates to a pressurizing binding band for an accessory breast, comprising two front pieces, velcroes, a left piece, a right piece, elastic bands, a left-side hemispherical armpit pressurizing cloth bag, a right-side hemispherical armpit pressurizing cloth bag, circular sponge cloth piece groups, two rear pieces and two crossed braces, wherein the two front pieces are connected through the velcro; the other ends of the two front pieces are respectively connected with the left piece and the right piece through the elastic bands; the left piece and the right piece are respectively sewn with the left-side hemispherical armpit pressurizing cloth bag and the right-side hemispherical armpit pressurizing cloth bag; the left-side hemispherical armpit pressurizing cloth bag and the right-side hemispherical armpit pressurizing cloth bag are respectively internally provided with the circular sponge cloth piece groups; the other ends of the left-side hemispherical armpit pressurizing cloth bag and the right-side hemispherical armpit pressurizing cloth bag are respectively connected with the two rear pieces through the elastic bands, and the two rear pieces are connected through the velcro; the two crossed braces are respectively sewn outside the left-side hemispherical armpit pressurizing cloth bag and the right-side hemispherical armpit pressurizing cloth bag, crossed to opposite-side shoulders through armpits and connected through the velcro; and the velcroes are strip-shaped velcroes. The invention has convenient operation and can be regulated in looseness according to the overlapping length of the velcroes and controlled in local pressure by changing the thickness of stacked sponge pieces and the length of the outer braces.

The invention relates to an automatical fishing bracket comprising a bracket which is inserted into the ground for fixing, a force applying arm for supporting the fishing pole, a pull rod connecting the bracket and the force applying arm and a spring to pull the force applying arm to quickly bounce the fishing pole, wherein the force applying arm is arranged on the top of the bracket and is moveable connected with the bracket. One end of the pull rod is connected with a baffle plate arranged at one side of the strut and the other end is connected with a slideing board arranged on the force applying arm. The pull rod can slide front and back in a slider groove of the sliding board. The sliding board is welded on the force applying arm. An elongated slider groove is arranged in the middle of the slide board. A pore from which the fishing thread is penetrated is arranged at the upper portion of the slider groove. A trigger for towing the fishing thread is movably connected at one side of the back of the sliding board. One end of the spring is hooked on the baffle plate and the other end is hooked in an adjusting pore on the force applying arm. The spring is detachably arranged between the bracket and the force applying arm. The invention is sensitive, safe, labor saving, beautiful and portable and has the simple structure and long service life.

The invention provides an oil sludge and sand recycling system and an oil sludge and sand thermochemistry phase slitting treatment device. The oil sludge and sand thermochemistry phase slitting treatment device comprises a shell and a spiral pushing and stirring device, wherein the shell is filled with an oil sludge and sand cleaning liquid; the spiral push stirring device is arranged in the shell; a material inlet is formed in a first end of the shell; an oil water outlet, a sludge water outlet and a sand water outlet are sequentially formed in a second end of the shell from high to low respectively. According to the oil sludge and sand recycling system and the oil sludge and sand thermochemistry phase slitting treatment device, the treatment efficiency of the oil sludge and sand is improved, the oil residue rate is reduced, and a requirement of environmental protection can be met well.

The invention discloses a boxing stand installed on a frame structure, belongs to the field of sports fitness equipment, and particularly relates to a device for exercising boxing conveniently. The boxing stand comprises an installation device, an elastic device and a beating device, the installation device comprises two or more stay rods, and the stay rods are connected with and fix the beating device through the elastic device. The boxing stand can be installed in a building structure with a window frame or a door frame conveniently, and a boxing fan can conduct boxing training at any place any time. The boxing stand can be graded according to coloration of a preset intensity color device, when beating reaches to different grades, different kinds of color display are shown on the surface of the beating device, and a trainee can understand the existing punching intensity clearly by observing a visual signal. The boxing stand can be adjusted in a humanized mode according to self conditions, the punching intensity and exercise habits, the boxing sport is more scientific and controllable, and generation of pain is further avoided.

The invention relates to the technical field of fitness auxiliary equipment, in particular to a fitness backward walking wing mirror. The fitness backward walking wing mirror comprises an adjustable headband, and is characterized in that a stabilizing cushion block which is matched with the back of the head of the human body is fixed in the middle of the rear of the adjustable headband, the inner side of the stabilizing cushion block is provided with a skin-friendly gasket, and the outer side of the stabilizing cushion block is provided with a radar ranging alarm device; a support frame which is matched with the forehead of the human body is fixed in the middle of the front of the adjustable headband, and the inner side of the support frame is also provided with a skin-friendly gasket; a support rod which is vertically arranged is fixed in the middle of the outer side of the support frame, and the top of the support rod is hinged to a telescopic rod; the tail end of the telescopic rod is hinged to a wing mirror body. The fitness backward walking wing mirror has the advantages of being simple in structure and ingenious in design, the problem that when walking backwards, people cannot check the back environment in real time is solved, and through the arranged radar alarm device, basic guarantee is provided for the people when the people conduct movement of backward walking.

The invention provides a personalized hard tissue defect restoration body and a manufacturing method thereof. The personalized hard tissue defect restoration body provided by the invention is porous structure metal with a rough surface, and the appearance and the mechanical property of the personalized hard tissue defect restoration body are accurately matched with a hard tissue defect part of a patient. The manufacturing method comprises the following steps of firstly, designing a restoration body three-dimensional model according to the form and the mechanical property of the hard tissue defect part of the patient; then utilizing a selective laser melting rapid prototyping method to acquire a restoration body entity; carrying out annealing treatment to obtain the restoration body. The method is simple in processing step, short in period, high in material utilization rate, low in cost, and convenient for manufacturing of the hard tissue defect restoration body with a complex structure, and has more efficiency and economic advantages for the personalized design and quick manufacture of the restoration body. The manufactured restoration body is uniform in porosity and adjustable in pore diameter, has mutually penetrated and communicated holes, has the elastic modulus and the compressive strength being very close to those of the hard tissue, and can meet the biomechanical compatibility requirement required by biomedical materials.

The invention relates to a continuous medicine filling injector which comprises a handle assembly. The handle assembly is connected with a volume cylinder. One end of the volume cylinder is connectedwith a medicine filling pipe assembly or an injecting head assembly. The other end of the volume cylinder is connected with a piston assembly. The piston assembly is connected with a liquid absorptionassembly. The medicine filling pipe assembly comprises an elbow pipe. One end of the elbow pipe is connected with a spraying nozzle. The other end of the elbow pipe is connected with an elbow pipe connector. The elbow pipe connector is connected with the volume cylinder through a fixing nut. The liquid absorption assembly comprises a liquid absorption rubber pipe. One end of the liquid absorptionrubber pipe is connected with a piston assembly. The other end of the liquid absorption rubber pipe is connected with a liquid absorption connector or a liquid storage cylinder connecting end shield.The continuous medicine filling injector is made of high-quality plastic and an anti-corrosion metal material and has the advantages of being diversified in function, adjustable in elastic force, convenient to operate, accurate in dosage, firm, durable, comfortable in hand feel, light in weight, high in filling efficiency, stable in chemical performance and the like.

The invention discloses building stone processing equipment which comprises a stone crushing device, the stone crushing device comprises a feeding shell and a crushing mechanism, the crushing mechanism is arranged in the feeding shell, a conical discharging hopper is arranged at the bottom of the feeding shell, a discharging port is connected to the lower portion of the discharging hopper, a stone sorting device is arranged below the stone crushing device, the stone sorting device comprises a base, a sorting plate and a vibration frame, and the sorting plate is installed above the base through the vibration frame and arranged in an inclined mode. The building stone processing equipment has the advantages that the sorting plate is driven by a vibration exciter to generate regular vibration, and stones are efficiently sorted and separated according to the particle size under the left and right of baffles, so that the stones can be conveniently used in building construction according to different particle sizes, and compared with multi-layer screen separation in the prior art, the strength is high; and compared with the prior art that a screen is difficult to resist long-time impact of stones, and a plurality of layers of screens are inconvenient to clean, the device is durable, and the sorting plate is easy to clean.

The invention discloses a holding-on sliding type continuous garlic root cutting machine and root cutting method. An existing holding-on type garlic root cutting machine can be affected by tough stalks in garlic bodies when being used for cutting roots, and the conditions that root cutting is incomplete, and root discs adhere to garlic plants exist. The invention discloses the holding-on sliding type continuous garlic root cutting machine. The holding-on sliding type continuous garlic root cutting machine comprises an annular conveying device, a clamping device, a sliding root cutting device and a discharging device, wherein the annular conveying device comprises a main supporting table, a rotating shaft base, a placing assembly, a conveying shaft and a gear transmission assembly. The clamping device comprises an air cylinder clamping assembly and a material pressing barrel. The sliding root cutting device comprises a root cutting mechanism and a sliding pull-down mechanism; and the discharging device comprises a lifting material blocking assembly. According to the garlic root cutting machine, the same root cutting depth can be achieved for garlic bodies of different sizes in different batches, the problem that tough stalks in the garlic bodies adhere to the root discs after root cutting is solved through the downward pulling action of the root cutting mechanism after cutters are engaged, and the garlic root cutting machine is suitable for processing of medium-batch garlic.

The invention discloses a cleaning plate. The cleaning plate comprises a rotary plate and an elastic sweeper which is uniformly distributed on the rotary plate in a peripheral direction, wherein the elastic sweeper comprises a cylinder body, a piston rod, a piston, a hairbrush and a pressure spring, the piston is arranged on the piston rod; the piston rod can move back and forth along the inner wall of the cylinder body; the cylinder body is arranged in an inverted manner, namely, the opening of the cylinder faces downwards; the cylinder body comprises an upper cylinder body and a lower cylinder body which are in threaded connection with each other, wherein a ring-shaped bump is arranged on the outer side wall of the upper cylinder body; grains are arranged on the ring-shaped bump part, so that people can rotate the upper cylinder body conveniently; the pressure spring is mounted between the piston and the inner wall of the top of the upper cylinder body; the lower part of the piston rod penetrates through a cylinder lid; the lower end part of the piston rod is detachably connected with the hairbrush. The hairbrush of the cleaning plate can elastically stretch out and draw back according to fluctuation changes of a rod surface, so that abrasion of bristles is relieved, the service life of the hairbrush is prolonged; the upper and the lower cylinder bodies are in threaded connection so as to conveniently regulate the elastic force of the spring; moreover, the threaded connection part is free of interferences of outer dust.

The invention discloses a spring quick replacement mechanism. The spring quick replacement mechanism comprises an upper fixed connection seat and a lower fixed connection seat; the upper fixed connection seat is fixedly installed on a shaking platform; the lower fixed connection seat is fixed to an oblique bracket; an upper limiting end cover is connected to the lower end of the upper fixed connection seat in a clamping manner; a downward sleeve is fixedly arranged at the top end of the inner side of the upper limiting end cover; a safety check block is arranged at the top end of the outer surface of the upper limiting end cover; a fixed assembly is arranged on the safety check block; the fixed assembly penetrates through the safety check block and the upper limiting end cover, and extendsinto the sleeve; a second spring is connected to the fixed assembly in a sleeving manner; a lower limiting end cover is connected with the upper end of the lower fixed connection seat in a clamping manner; an oil-free sleeve is connected with the bottom end of the inner side of the lower limiting end cover in a sleeved manner; a closely-pitched bolt is inserted into the oil-free sleeve; and the closely-pitched bolt extends into the sleeve. The replacement of the spring can be quickly completed; the elastic force of the spring is adjustable, so that the debugging efficiency of equipment is improved; and the shaking platform and the oblique bracket are fixed, so that the overturning hidden danger is removed.

The invention discloses an electronic oil pressure difference switch, and belongs to the technical field of industrial sensors and refrigeration. The electronic oil pressure difference switch comprises a shell and a mechanical head connected with the shell. Wherein a circuit board is arranged in the shell, the circuit board comprises a Hall sensor, and the Hall sensor is located at the end, closeto the mechanical head, of the circuit board; One end of the mechanical head is a copper head, and a permanent magnet and a spring making contact with the permanent magnet are arranged in an inner cavity of the other end of the mechanical head. The circuit board further comprises a temperature sensor and a micro-control unit. The end face of the copper head is provided with a low-pressure open hole, the outer side face of the copper head is provided with a high-pressure open groove, and two cavities of a tested oil way are connected with the low-pressure open hole and the high-pressure open groove respectively. A separated design structure is adopted, the mechanical head is separated from the shell, installation is convenient, and maintenance is easy; And various parameters can be flexiblyset, so that the device can adapt to various types of oil ways and various pressure ranges.

The invention provides a hearth overtemperature protection device and relates to the melting furnace field. The protection device comprises a heat conducting rod, the heat conducting rod penetrates through one end of the sealing cylinder and extends into the sealing cylinder; the sealing cylinder is filled with an expansion medium; the sealing cylinder is communicated with the sliding cylinder; afirst piston in sliding connection with the inner wall of the sliding cylinder is arranged in the sliding cylinder; the side face of the sliding cylinder is connected with a connecting cylinder, a sliding rod connected with the connecting cylinder in a sliding mode is arranged in the connecting cylinder, one end of the sliding rod is fixedly connected with a second piston, the other end of the connecting cylinder is in transmission connection with a pressure switch connected with a gas valve through a pressure pipe, and the gas valve is connected to a gas pipe. According to the invention, thetemperature in the hearth is prevented from exceeding a preset value, the working performance is stable at high temperature, the measurement deviation caused by circuit heating faults is avoided, andthe device is safer and more durable.

The invention discloses a reset device, which comprises a limiting base (2), a sheet spring (3), an adjusting screw (4) and a locking nut (5), wherein the sheet spring (3) is firmly arranged on the limiting base (2) through a screw (1); the lower end of the adjusting screw (4) is screwed into a threaded hole of the limiting base (2) through a screw thread; the upper end of the adjusting screw (4) is provided with a ball (41); the sheet spring (3) is provided with a circular-arc hook ring (31). The reset device has the advantages of compact structure, small floor space, adjustable elastic force and low cost.

The invention belongs to the technical field of automobile safety, and particularly relates to an automobile tire burst emergency safety device. The technical problems that most existing tire burst emergency devices are complex in structure, large in installation difficulty, low in assembly efficiency, poor in fastening performance, incapable of achieving effective safety looseness prevention andcapable of influencing the use performance of tires are solved. The device comprises a first supporting sheet, a second supporting sheet, a third supporting sheet, a first connecting device, a secondconnecting device, a third connecting device and a contact pin pad, and the first supporting sheet and the second supporting sheet are connected through the second connecting device. The second supporting sheet and the third supporting sheet are connected through the third connecting device. The first supporting sheet and the third supporting sheet are connected through the first connecting device, the first supporting sheet, the second supporting sheet and the third supporting sheet are sequentially connected to form a complete annular device, and the device is simple in overall structure, high in universality, low in cost, adjustable in tightness, small in rim abrasion, small in influence on tire use performance and suitable for various rims and the installation method is simple.

The invention discloses a supporting module. The supporting module comprises a sensing spring, an outer ring spring and a sensor, wherein the sensing spring is slightly higher than the outer ring spring, the sensing spring is sleeved and installed in the outer ring spring, and the bottom of the sensing spring is connected with the sensor. The invention also discloses an automatic adjusting bed. The automatic adjusting bed comprises the supporting module. By adopting the supporting module and the automatic adjusting bed with the supporting module, each sensor is independently stressed, and theeffect for protecting the sensor and an inner ring spring can also be achieved; and moreover, the inner ring spring is separated from the outer ring spring, when the inner ring spring is excessively pressed, the elastic force of the outer ring spring can be adjusted, and the noise can be reduced. The supporting module is used for an ordinary bed and can solve the problem that the existing bed cannot well enable the spine of a human body to have the normal physiological curve.

The invention discloses a novel allogeneic amnion composite material repair catheter and a preparation method, and relates to the field of nerve repair catheters. The preparation method comprises the following steps: firstly, after a puerpera cesarean placenta is obtained, conducting serum detection, adding a protective agent for protection after the placenta is qualified, conducting refrigeration, soaking and washing the placenta through a washing solution, then stripping the amnion, adding the protective agent to maintain the activity of the amnion; and secondly, selecting modified high polymer materials such as polylactic acid and amino polylactic acid which meet the requirements of controllable tensile strength, compressive strength, elasticity, tensile strength, molecular weight and degradation time, adhesion performance, safety and metabolic pathways, positively charging the modified high polymer materials. The amniotic membrane belt is rolled into a pipe shape and distributed inside and outside the high polymer materials; after being freeze-dried, the composite material can be firmly adhered to a polymer tubular material to prepare a novel allogenic amnion composite material nerve repair conduit taking a composite polymer material as a skeleton, so that the problem that the amnion material is softened when meeting water in vivo can be effectively solved.