24results about How to "Shrinkage stable" patented technology

The invention relates to the technical field of oxygen cabins, in particular to a hyperbaric oxygen cabin with a replaceable inner container, which comprises a cabin body, sealing rings are respectively embedded at the left end and the right end of the cabin body, a solid pull rope is respectively arranged in each sealing ring in a penetrating manner, one end of each pull rope is respectively connected with a hook, the left end surface in the cabin body is connected with a round pipe, and the round pipe can be used for the pull rope to penetrate through. An air inlet pipe and an oxygen inlet pipe are respectively connected to the circular pipe; a lying cushion is arranged at the bottom in the cabin body, an inner container which can be taken out is arranged on the lying cushion in the cabin body, the inner container is composed of a cylinder made of soft fabric and a hard circular ring, the right end of the inner container is arranged in a sealed mode, hanging rings are arranged on the inner side and the outer side of the right end face of the inner container respectively, an elastic ring is arranged at the left end of the inner container, and the elastic ring can be clamped on the circular pipe; an opening is formed in the inner container. The high-pressure oxygen chamber has the advantages of replaceable inner container, good sealing performance, simplicity and convenience in operation, high adaptability, convenience in maintenance and the like, and the use safety and the treatment effect of the high-pressure oxygen chamber can be remarkably improved.

The utility model provides an automatic brake of a crane, which is mounted at a travelling wheel of the crane, the travelling wheel is driven by a motor, and the automatic brake comprises a stop dog hinged with a rack of the crane; a driving assembly and an elastic assembly which are opposite in driving direction are installed on the rack and drive the check block to rotate. During electrification, the driving assembly drives the stop block to be away from the walking wheel; when power is cut off, the elastic assembly drives the check block to press the traveling wheel through the elastic force of the elastic assembly, the speed of the traveling wheel is gradually reduced until the traveling wheel stops, and the elastic assembly stretches out and draws back repeatedly under the elastic force of the elastic assembly and the counter-acting force of the traveling wheel in the process. The brake has the advantages that due to the arrangement of the position of the check block, the structure of the brake is more compact, the size is reduced, and space is saved; 2, the travelling wheel is braked by the stop block under the condition of power failure, so that the situation that the travelling wheel cannot work due to power failure caused by severe weather in a working environment is avoided, and the stability is higher;

The application provides a high-nickel ternary material modification method and a high-nickel positive electrode material with a nitrogen-oxygen coating layer, and relates to the field of lithium ion batteries. In the high-nickel ternary material, surface lattice oxygen is gradually replaced by nitrogen atoms in a high-temperature long-time calcination process in a nitrogen-oxygen mixed atmosphere, so that a nitrogen-oxygen layer is formed on the surface, which is beneficial to the delocalization of electrons, thereby endowing the material with excellent electronic conductivity; meanwhile, the presence of the nitrogen-oxygen layer inhibits the transformation of the surface layer structure into a rock salt phase structure, which is beneficial to realizing efficient ion transport. The formation of the nitrogen-oxygen layer on the surface of the high-nickel ternary material can simultaneously improve the electronic and ionic conduction of the surface of the high-nickel positive electrode material, inhibit the interface side reaction, relieve the volume change, and thereby improve the cycle stability of the battery.

The invention belongs to the technical field of automobile connectors, particularly relates to a high-stability automobile connector and assembling equipment, and aims to overcome the defects that in the prior art, when an automobile connector is connected with an external wire, quick and stable connection cannot be achieved, and when the connector is connected, corresponding auxiliary devices are lacked, and quick butt joint cannot be achieved. The automobile connector comprises a socket and a plug, an annular rubber strip is fixedly installed in the socket, a protective sleeve is fixedly installed on one side of the plug, an annular opening is formed in the protective sleeve, the automobile connector further comprises two power connection mechanisms, and each power connection mechanism comprises a U-shaped frame. According to the utility model, rapid and stable connection between the lead and the connector can be realized, the problem of separation is avoided, and rapid and accurate plugging between the socket and the plug in the connector can be realized when the connector is installed, so that good convenience can be provided in actual use.

The invention provides a process for improving high-temperature sintering warpage of a ceramic substrate, which adopts a co-shrinkage soaring method for the first time, and is technically characterized in that before a substrate is sintered, a green body which is made of the same material as a sintered product and is slightly thicker than a green body of the sintered product is adopted as a cushion block to be respectively placed on the periphery of a green body of the substrate, and a cover plate covers the green body of the substrate; and finally sintering at high temperature. Due to the fact that the cushion blocks are shrunk with the same shrinking percentage as the product in the sintering process, the thickness of the surrounding cushion blocks is larger than that of the product all the time in the sintering process, the product can be located in a small limiting space all the time, and the warping problem generated in the sintering process of the ceramic substrate can be solved. The preparation process is simple and easy to implement, and has wide application prospects in the fields of electronic packaging and precision part manufacturing.

The invention belongs to the related technical field of pyroelectric infrared detection, and discloses a high-depolarization-temperature lead-free pyroelectric ceramic and a preparation method and application thereof.The lead-free pyroelectric ceramic comprises 0.8 (Bi0. 5Na0. 5) TiO3-0. 2BaTiO3-XMn, and X is larger than 0.0 and smaller than 0.8%. By introducing the Mn element into a tetragonal-phase 0.8 (Bi0. 5Na0. 5) TiO3-0. 2BaTiO3 matrix, the depolarization temperature of the lead-free pyroelectric ceramic is increased, and the depolarization temperature of the lead-free pyroelectric ceramic is increased. And the lead-free pyroelectric material can show excellent pyroelectric performance while ensuring that the lead-free pyroelectric material has relatively high depolarization temperature. When the ceramic is prepared, firstly, the ceramic slurry is subjected to tape casting by utilizing a tape casting process to form a thin film with better quality, then the thin film is cut into a plurality of pieces to be stacked, and then the stacked thin film is subjected to hot pressing to obtain a thick film blank. According to the preparation method, cutting and thinning are not needed, and the utilization rate of the sensitive element ceramic is greatly improved.

The invention discloses an air door assembly and a refrigerating system thereof.The air door assembly comprises a driving part and a control part, the driving part comprises a cavity and refrigerants filled in the cavity, one end of the driving part is used for sensing the temperature, and the pressure of the refrigerants is in direct proportion to the temperature; the input end of the transmission mechanism is connected with the other end of the driving part, and the output end of the transmission mechanism is used for being connected with the air door; wherein the driving part drives the transmission mechanism to move under the action of the pressure of the refrigerant in the driving part so as to drive the air door to rotate, so that the cost is reduced and the mounting space is saved while stable control is provided. The invention further provides a refrigerating system.

The utility model discloses a fishing rod wheel seat convenient to mount, which comprises a wheel seat main body and is characterized in that a connecting sleeve is fixedly mounted on the inner side of one end of the wheel seat main body, fishing rod mounting threads are arranged on the outer surface of the other end of the wheel seat main body, anti-deflection inclined planes are arranged on two sides of the wheel seat main body, and the wheel seat main body and the wheel seat main body are integrally formed. A fishing line wheel is arranged on the outer sides of the two deviation preventing slopes, a shock pad is installed on the upper end face of the middle of the wheel seat body, a hidden groove hole is formed in the inner side of one end of the shock pad, and a limiting head is installed on the inner side of the hidden groove hole; a guide sleeve is fixedly mounted on the inner side of the wheel seat body, and a movable mounting sleeve is slidably connected to the inner side of the guide sleeve. According to the utility model, the fishing reel is limited and locked, so that the fishing reel can be separated during single rotation operation, the fishing reel and the fishing rod wheel seat can be quickly disassembled and assembled, and the fishing rod can be conveniently positioned during retraction, and axial sliding is avoided.

The invention discloses a climbing fire truck and a supporting leg telescopic device and method thereof. The supporting leg telescopic device for the climbing fire fighting truck comprises a supporting leg box arranged on a fire fighting truck frame, a first supporting leg sleeved with the supporting leg box in a sliding mode, a second supporting leg sleeved with the first supporting leg in a sliding mode, a first oil cylinder perpendicularly arranged at the free end of the second supporting leg, and a pressure sensor arranged between the first oil cylinder and the second supporting leg. A first support is fixed to one end of the supporting leg box, a second oil cylinder is fixed to the first support, and the second oil cylinder comprises a push rod connected to the first support and a cylinder barrel arranged on the outer side of the push rod in a sleeving mode. Through the effective weight reduction design and the installation structure, high smoothness, convenience and reliability are achieved, the stress of the supporting leg can be measured in real time by reading the numerical value of the pressure sensor in the use process, then it is confirmed that the first oil cylinder bears force correctly all the time and does not leave the ground, the actual use requirement can be better met, and the application range is wide. And the method has good practicability and adaptability.

The invention relates to a detection structure and a detection device. The detection structure comprises a support, a metal corrosion detector and a telescopic piece. The metal corrosion detector is arranged on the support, and the telescopic piece is arranged on the support and telescopically arranged in the first direction. Wherein the metal corrosion detector comprises a detection probe, one end of the detection probe along the first direction is provided with a detection end, the same end of the telescopic piece along the first direction is provided with a propping end, and the telescopic piece is arranged farther away from the bracket than the detection end and the propping end along the first direction and protrudes out of the bracket. The detection structure can be suitable for detecting planes and curved surfaces and can replace manual detection, so that the safety and the detection efficiency of corrosion detection of the storage tank can be improved.

The utility model discloses a metal surface treatment is with self -cleaning type cleaning spray gun relates to spray gun technical field. A metal surface treatment is with self -cleaning type cleaning spray gun, including metal piece cleaning box, the top of metal piece cleaning box is provided with through groove, spray gun cleaning structure, spray gun cleaning structure is located on metal piece cleaning box, and spray gun cleaning structure includes water supply hose, cleaning spray gun main part, spray gun head, outer thread ring no.

The utility model discloses a dustproof structure convenient to use, which comprises a paper box in sliding fit with a printer main body, connecting seats are oppositely fixed on two sides of the outer wall of one side of the printer main body, the connecting seats are positioned above the paper box, the opposite sides of the two connecting seats are rotatably connected with the same dustproof cover, and the same dustproof cover is fixedly connected with the printer main body. The other end of the dustproof cover is fixed to the paper box through a connecting assembly, a containing groove is formed in the outer wall of one side of the printer body, an elastic protrusion is fixed to the inner wall of the top end of the containing groove, the dustproof cover comprises a plurality of U-shaped plates and extension springs, a connecting groove is formed in the outer wall of one side of each U-shaped plate, and the other U-shaped plate is in sliding connection with the inner wall of the connecting groove. According to the paper box, the connecting base, the dustproof cover and the connecting assembly are arranged, and the dustproof cover and the paper box are two independent individuals, so that when the paper box is pulled out to be cleaned, the dustproof cover and the paper box are separated and stored in the storage groove, cleaning cannot be hindered, and the paper box is convenient to clean.

The utility model discloses an ozone concentration analyzer, which belongs to the technical field of ozone analyzers and comprises an analyzer body, the analyzer body is provided with a sliding groove, two sides of the inside of the sliding groove are provided with limiting grooves, the bottom of each limiting groove is provided with a slot, two sides of the top end of the inside of each slot are provided with clamping blocks, and the inside of the sliding groove is provided with a probe. The outer portion of the probe is sleeved with a sliding sleeve, limiting sliding blocks are arranged on the two sides of the bottom end of the sliding sleeve, inserting plates are arranged at the positions, corresponding to the inserting grooves, of the bottoms of the limiting sliding blocks, and fixing clamping plates are arranged on the two sides of the bottom end of each inserting plate. By utilizing the clamping connection between the fixed clamping plate and the clamping block, the fixed clamping connection of the probe is realized, and the probe can be stably contracted in the sliding groove, so that a good protection function is formed, the probe is prevented from being damaged when the analyzer body accidentally falls, and the protectiveness of the probe is greatly improved.

This invention relates to a method for preparing superconducting targets using reaction sintering. The invention provides three reaction sintering processes for preparing superconducting targets, which can rapidly advance densification at ambient pressure and lower peak temperatures, avoiding the problems of excessive precipitation of Ba / Cu-rich liquid phase and insufficient densification caused by high temperature or high pressure. This achieves the preparation of high-density superconducting targets without Ba / Cu liquid phase precipitation and volatilization, and less prone to cracking, thereby improving the critical current density and other properties of the superconducting targets. Specifically, the low-temperature synthesis-pulverization process can prepare targets with higher density and better critical current density and other properties; the low-temperature synthesis-jaw crushing process can prepare high-density targets with a higher yield, better supporting mass production; and the low-temperature negative pressure synthesis-pressureless sintering process balances high density and yield, while eliminating high-pressure tooling, simplifying the sintering process, and reducing equipment wear.

This invention discloses an automated warehouse for storing warning signs of various shapes, relating to the field of automated warehouse technology. It includes a warehouse floor, a lifting device, and a racking assembly, both located on the warehouse floor. The lifting device includes a guide frame, on which a load-bearing rack that reciprocates along its height direction is slidably mounted. A fixed plate is installed at the bottom of the load-bearing rack, and a fixed shaft is fixed to the fixed plate. A rotating plate rotates on the fixed shaft, and a sliding channel is formed on the rotating plate. A U-shaped frame is slidably mounted inside the sliding channel. This automated warehouse, which facilitates the storage of warning signs of various shapes, achieves an emergency braking effect by incorporating the fixed plate, rotating plate, top rod, and U-shaped frame, protecting goods and preventing safety hazards without affecting the vertical movement of the load-bearing rack. Furthermore, the rotating plate and fixed plate can be connected as a whole, improving the utilization efficiency of the automated warehouse.

The application belongs to the technical field of skin care products, and specifically discloses a soothing and repairing composition containing a bionic sebum component and a preparation method thereof. The composition is composed of an oil phase and an aqueous phase. The oil phase comprises a bionic sebum, a farnesol-mesyl glyceride conjugate, and an enzymatic oat anthranilamide-phytosphingosine ion pair. The aqueous phase comprises deionized water, a humectant, and a crocin-hydrogenated lecithin dispersion. The application induces the liquid crystal reconstruction of the bionic sebum by sacrificing a template, so that a plurality of modified active substances form a gradient distribution from a hydrophobic core to a hydration layer in a lamellar structure, and are coupled with the skin carboxylic acid esterase activity to realize cascade release, thereby solving the problems of compatibility conflict, spatial positioning disorder and passive release of multiple active substances.

The utility model relates to a windproof iron wedge technical field, concretely is a kind of wharf portal crane windproof iron wedge, including iron wedge body, the inside of iron wedge body is equipped with through-hole, the left and right sides of iron wedge body side are all clamped with clamping plate, the top of clamping plate is fixedly connected with fixed frame, the inside of clamping plate is equipped with insertion hole, the inside of insertion hole is inserted with plug shaft, the one end of plug shaft is equipped with slot, the side of clamping plate close to slot is equipped with sliding slot.The utility model has the advantages of: when using, after pulling plate is pulled to right, again, plug shaft is penetrated clamping plate and iron wedge body, when plug shaft is penetrated clamping plate, spring after hand release can be pushed to left with plug plate and complete reset, and the plug plate after reset is inserted into the slot of plug shaft, the fixation of plug shaft can be quickly completed, reach the purpose of being convenient for installation and disassembly plug shaft;The setting of positioning rod can avoid bending when spring compression, can assist spring more stable contraction and unfolding.

The invention relates to the technical field of take-up machines, in particular to a vertical take-up machine and a take-up process. The cable winding device comprises a base structure, a rotating structure is arranged above the base structure, a cable winding structure is arranged between the rotating structure and the base structure, the cable winding structure rotates to wind a cable, and the upper end and the lower end of the cable winding structure are connected with the rotating structure through compensation structures. A cable is placed on an arc-shaped plate of the take-up machine to prepare to start the take-up process, a piston rod of a first hydraulic cylinder stretches out and draws back, rotation of a rotating plate is controlled, and a second air cylinder is positioned above a winding structure, so that the accuracy and safety of the unloading process are guaranteed, the second air cylinder downwards stretches out of the piston rod, and the winding process is completed. The pressing rod is pushed to extrude the lower conical block, then the arc-shaped plate expands outwards to compact the cable so as to adapt to different wire specifications, the motor drives the spline rod to rotate, then the arc-shaped plate rotates, continuous winding of the cable is achieved, and it is guaranteed that the cable is evenly wound.

The utility model discloses a carrier tape rapid cooling device which comprises two end face plates arranged in a front-back symmetrical mode and two side face plates arranged in a left-right symmetrical mode, a vertically-through cooling channel is formed between the side face plates and the end face plates in a surrounding mode, one end of the cooling channel is provided with a carrier tape feeding port, and the other end of the cooling channel is provided with a carrier tape discharging port. An inner channel extending towards the other side face is formed in the side face of at least one end face plate, a plurality of air holes arranged at intervals along the extending track of the inner channel are formed in the channel wall of the inner channel, one end of each air hole is connected with the inner channel, the other end of each air hole is connected with a cooling channel, and an air inlet pipe is connected to an air inlet of the inner channel. And the air inlet pipe is connected with a vortex pipe in series. According to the cooling device, the carrier tape is rapidly cooled and shaped after being formed in a rapid cooling mode, the temperature of the formed carrier tape is reduced, the stability and follow-up winding quality of the formed carrier tape are improved, the overall function is complete, and practicability is high.

The utility model relates to a wax mould base frame assembly which comprises a base, a supporting piece and a plurality of base plates, and the supporting piece is vertically and fixedly connected to the base; a plurality of clamping grooves matched with the base plate are formed in the two sides of the supporting piece. One end of the base plate is detachably connected with the clamping groove, the other end of the base plate is inserted into the groove of the wax mold, and the thickness of the base plate is smaller than the width of the groove. The mold inserting difficulty and the mold taking difficulty are reduced, it is guaranteed that the size of the wax mold shrinks stably, deformation of the wax mold is avoided, and therefore the size precision of the wax mold is guaranteed.

The invention relates to the technical field of ceramic materials, in particular to a preparation method of a microwave dielectric ceramic material based on photocuring 3D printing, lanthanum oxide and yttria-stabilized zirconia are selected as main raw materials, resin, a photoinitiator and a dispersing agent are matched for grinding to form photocuring 3D printing slurry, and lanthanum zirconate ceramic is obtained after degreasing and sintering. By using the preparation method disclosed by the invention, various possible cracking conditions in the firing process of the lanthanum zirconate ceramic are effectively avoided, various complicated structures of lanthanum zirconate can be printed, various filters with traditional structures can be printed, and special-shaped filters with complicated structures can also be printed. Compared with the lanthanum zirconate ceramic prepared by the traditional solid-phase tabletting method, the lanthanum zirconate ceramic printed by the method has the characteristics of less proneness to cracking, higher density after sintering and more stable shrinking percentage.

The utility model discloses an automatic material receiving device of a punching machine, which relates to the technical field of punching machines and comprises a punching machine body, an adjusting mechanism and a material receiving mechanism, the adjusting mechanism comprises a connecting rod, a guide rod is arranged on one side of the connecting rod, a positioning pin is arranged between the inner wall of the middle position of the guide rod and the connecting rod, and the material receiving mechanism comprises a material receiving plate and a movable seat. The movable seat is arranged on the outer wall of one end of the guide rod, a fastening bolt is arranged between the movable seat and the guide rod, and a traction plate is arranged between the top of one side of the movable seat and the outer wall of one side of the material receiving plate. The connecting rod can be driven to contract or extend through movement of the upper sliding block, the guide rod can be driven to move, the material receiving plate can receive punching machine machining materials, meanwhile, the fastening bolt penetrates through the movable base and is in threaded connection with the inner wall of the adjacent fixing hole, and the movable base can be fixed; and the material receiving plate is kept stable in an inclined state, so that the stable proceeding of material receiving work can be ensured.