23results about How to "Improve affordability" patented technology

The utility model discloses a double-door four-folding cover which comprises a frame main body, a first door, a middle plate and a second door are respectively arranged in one side of the frame main body, and hinge assemblies are arranged between the first door and the middle plate and between the second door and the middle plate. Telescopic rods are arranged between a second positioning block arranged on a back beam of the frame body and a first positioning block arranged at a corner of the back of the first door and between a second positioning block arranged at a corner of the back of the second door, and lock catch assemblies are arranged between the first door and the frame body as well as between the second door and the frame body, and supporting and tensioning assemblies are arranged in the middle of the back of the first overhead door and the middle of the back of the second overhead door. The first opening door and the second opening door are arranged in the direction close to a driving license, objects can be conveniently taken out, practicability is improved, the supporting and tensioning assemblies are additionally arranged below the first overhead door and the second overhead door, the bearing capacity is improved, meanwhile, the side edges of the overhead doors are attached to the frame body, and the safety of the overhead doors is improved. And the internal sealing performance is improved.

This invention discloses a method for preparing sulfonamide-modified benzo[a]fluorene-5-one derivatives, using 1,7-enyne and N Using sulfonylaminopyridine salts as raw materials, a series of sulfonated benzo[a]fluorene-5-one compounds were successfully synthesized by catalyzing the sulfonation / cyclization tandem reaction of 1,7-enynes under photocatalytic conditions. This method has excellent functional group tolerance and high economic applicability.

The utility model discloses a kind of heating and ventilation pipeline connecting devices, relate to pipeline connecting technical field. Including two opposite flange's heating and ventilation pipeline, further include: tight sleeve ring, tight sleeve ring is corresponding two groups between two heating and ventilation pipelines and is sleeved on heating and ventilation pipeline;And first push sleeve structure and second push sleeve structure, first push sleeve structure and second push sleeve structure are respectively sleeved on two heating and ventilation pipelines, second push sleeve structure one end can be inserted into first push sleeve structure and carry out screw connection, first push sleeve structure and second push sleeve structure between screw cooperation to simultaneously push two groups of tight sleeve ring and press in the flange of respective corresponding side heating and ventilation pipeline, so that the flange of two heating and ventilation pipelines is butted and is pressed tightly.

The utility model relates to an engineering machinery spring rolling clamp which comprises a clamp body, the right end of the clamp body is fixedly connected with a fixing plate, an electric push rod is installed at the upper end of the fixing plate, the power output end of the electric push rod is fixedly connected with an upper clamping plate, and the right end of the clamp body is fixedly connected with a lower buffering plate located on the lower side of the upper clamping plate. The lower buffering plate comprises a lower clamping plate fixedly connected with the clamp body, the outer end of the lower clamping plate is sleeved with an outer protection frame, two symmetrical buffering wrapping layers are arranged between the outer protection frame and the lower clamping plate, a threaded hole is formed in the bottom end of the outer protection frame, a threaded rod is connected into the threaded hole in a threaded mode, and the upper end of the threaded rod makes contact with and abuts against the lower clamping plate. And the buffering wrapping layer comprises the first buffering layer and the second buffering layer, the first buffering layer is located on the outer side of the second buffering layer, when the round steel is bent, the lower clamping plate can be protected and cooled, the lower clamping plate is not prone to damage in the long-term use process, and the service life of the lower clamping plate is prolonged.

The utility model discloses casting slag ladle manufacturing equipment which comprises a ladle body, a trunnion, a ladle body reinforcing rib, a tank car fixing lug and a ladle bottom radian, the ultrasonic flaw detection percent of pass of the trunnion reaches 100% through an accurate trunnion pre-embedding device and a reasonable sand mould manufacturing process, and the structural strength and rigidity are enhanced through unique ladle body design and reinforcing rib layout. The bearing capacity is improved, deformation is reduced, and the service life is prolonged. In the aspect of the production process, the sand mold manufacturing mold is split by the horizontal center line of the tank car fixing lug, and sand mold manufacturing is efficiently and accurately completed; the box closing device is matched with the pouring system, smooth box closing pouring is guaranteed, the rejection rate is reduced, the production period is shortened, and the efficiency is improved. In the aspect of cost control, the equipment process is optimized, the yield is improved, the waste loss is reduced, meanwhile, equipment such as a sand mold manufacturing mold is durable, the maintenance cost is reduced, the safety accident risk caused by slag ladle faults during steelmaking slag conveying is effectively reduced, and the personnel safety and the production order are guaranteed.

The utility model discloses a ship hole safety protection device which comprises an H-shaped main support, two parallel edges of the main support are the same in structure, a telescopic support is slidably arranged in the parallel edges and comprises two telescopic rods and an elastic piece, the two telescopic rods are arranged at the two ends of the parallel edges respectively, one end of each telescopic rod extends out of the corresponding parallel edge, and the other end of each telescopic rod extends out of the corresponding elastic piece. The two ends of the elastic piece are connected with the telescopic rods at the two ends of the parallel edge respectively, the ends, extending out of the parallel edge, of the telescopic rods are provided with fork heads used for clamping a ship body steel plate, and an adjusting unit is arranged between the parallel edge and the telescopic support and used for adjusting the length, extending out of the parallel edge, of the telescopic rods. According to the ship hole safety protection device, the protection space of the protection device is increased, the bearing capacity of the protection device is improved, the stability of the hole safety protection device during use is improved, and the ship hole safety protection device can be suitable for safety protection of holes of different sizes and can be repeatedly used.

This application relates to the field of metal film capacitor technology, and provides an end-plate type high-current metal film capacitor for PCB circuit boards, including a housing, a core, end plates, and potting compound. The core is installed in the internal cavity of the housing, and the potting compound fills the remaining area of ​​the internal cavity of the housing. End plates are welded to both end faces of the core, and the outer surfaces of all end plates are in close contact with the corresponding inner walls of the housing. The upper part of the end plate is bent and supported on the corresponding positioning groove. Positioning protrusions are provided at both ends of the end plate, and the positioning protrusions are embedded in the corresponding positioning grooves. The width of the positioning grooves is the same as the width of the positioning protrusions. The end plates adopt a two-piece structure with the same polarity. The core is made of metallized polypropylene film wound together. The coating of the metallized polypropylene film is a mesh safety film with a diamond pattern design. The tops of all end plates are exposed on the upper surface of the potting compound. This application can control the capacitance decay rate and extend the product life.

The utility model discloses a kind of electric vehicle active suspension based on multi-chamber air spring, including air spring body, the front and rear sides of air spring body are connected with air cavity assembly, and air cavity assembly includes secondary air chamber, solenoid valve and connecting pipe, the lower end of secondary air chamber is connected with connecting pipe, and solenoid valve is installed on connecting pipe, the upper end of air spring body is connected with support assembly, and the upper end of support assembly is connected with center stress plate, the lower end of air spring body is connected with straight frame component. The electric vehicle active suspension based on multi-chamber air spring compared with the existing ordinary electric vehicle active suspension, the equipment also uses solenoid valve to control damping force, so as to make equipment keep good stability, reduce the damage of each shock to minimum, the equipment can play protective effect to the chassis of vehicle, reduce the impact force of shock to chassis cause damage.

The utility model discloses a strip steel shearing machine with an adjustable shear blade backlash, which comprises a machine frame, an upper knife rest assembly and a lower knife rest assembly, the upper knife rest assembly and the lower knife rest assembly are movably connected to the machine frame, the strip steel shearing machine further comprises a driving device, one end of the driving device is installed on the machine frame, the driving end of the driving device is connected to the upper knife rest assembly, and the other end of the driving device is connected to the lower knife rest assembly. Under the driving of the driving device, the upper knife rest assembly moves in the horizontal direction and in the direction perpendicular to the running direction of strip steel. The upper knife rest assembly is in contact fit with the rack through a wedge-shaped matching surface in the vertical direction; the angle of the wedge-shaped matching surface is a preset determined value; when the upper knife rest assembly is driven by the driving device to transversely move, the upper knife rest assembly can longitudinally move under the action of the wedge-shaped matching face, then the lateral gap between the upper shear blade and the lower shear blade is changed, the shear blade lateral gap can be accurately adjusted, the adjusting efficiency is high, and the service life is long. And the requirements of an automatic production line on the backlash change of multiple varieties and multiple specifications of shear blades can be met.

The utility model discloses a magnetized activated sludge feeding device of a buried industrial wastewater biochemical treatment system. The magnetized activated sludge feeding device comprises a buried box body, and a sludge inlet area, a primary mixing area, a magnetizing area, a secondary mixing area and a discharging feeding area which are sequentially arranged in the box body, the sludge feeding area comprises a feeding hole formed in the top of one end of the box body and a spraying device; a first-stage mixing stirrer is arranged in the first-stage mixing area, a magnetizing device is arranged in the magnetizing area, a second-stage mixing stirrer is arranged in the second-stage mixing area, and a sludge pump and a conveying pipeline are arranged in the discharging and feeding area. The system is used for overcoming the defects of poor timeliness effectiveness, high cost, severe working environment, multiple potential safety hazards and the like when a conventional method is adopted to deal with instantaneous collapse of a biochemical system. The device is efficient in integration, simple in operation, high in automation degree and stable in operation effect, and is obviously improved compared with a conventional mode.

The utility model belongs to the field of the breeding shed, specifically is a kind of fabricated breeding shed, including prestressed high-strength concrete pipe pile, the top of prestressed high-strength concrete pipe pile is fixedly connected with hot-dip galvanizing several Chinese character type truss top chord, the top of hot-dip galvanizing several Chinese character type truss top chord is provided with hot-dip galvanizing several Chinese character type truss bottom chord;The utility model is directly used professional pile driver hole drilling pile in construction site, and prestressed high-strength concrete pipe pile is placed in hole and is fixed, saves the period of cast-in-place wet operation needed to do independent foundation, and construction is more rapid, prestressed high-strength concrete pipe pile, hot-dip galvanizing several Chinese character type truss top chord, hot-dip galvanizing several Chinese character type truss bottom chord and hot-dip galvanizing square hollow truss web between are all used full bolted joint, and simple processing and manufacturing are needed only on-site assembly connection, and construction cycle is shorter, and construction is more simple, saves labour, reduces welding and other fire operation.

This utility model relates to a temperable mirror glass and its laminated product, belonging to the field of coated glass technology. It includes a glass substrate and a coating deposited on one side of the glass substrate using a vacuum magnetron sputtering process; the film structure of the coating, from the inside out, consists of a first dielectric layer Nb2O. x Second dielectric layer SiO2, functional layer, third dielectric layer Nb2O x The protective layer is ZrO2. This technical solution achieves the mirror function of the glass by rationally designing the thickness of each film layer, especially the geometric and optical thicknesses of the media layers with different refractive indices. The laminated glass products maintain good mirror-like characteristics while ensuring the physical and chemical properties of the glass are suitable for subsequent processing.

The utility model relates to TO263 packaging technical field discloses a kind of TO263 packaging structure, TO263 packaging structure includes base island, chip and plastic package body;The drain electrode of chip is connected by solder and base island, the lower portion of base island is equipped with gate bonding platform and source bonding platform, the source of chip and gate are connected with source bonding platform and gate bonding platform by source bonding wire and gate bonding wire respectively;Plastic package body is set on base island, for wrapping chip, source bonding wire, gate bonding wire, source bonding platform and gate bonding platform;When actually using, the TO263 packaging structure of the utility model can increase the area of source bonding platform, corresponding can promote current carrying capacity and increase creepage distance, since the drain electrode below base island.

The invention discloses a 1.5 [mu] m erbium-ytterbium co-doped fiber laser amplifier, which belongs to the technical field of fiber laser amplifiers and comprises a pumping source, a pumping coupler, a low-absorption-coefficient gain fiber, a high-absorption-coefficient gain fiber and a cladding light stripper. The low-absorption-coefficient gain optical fiber and the high-absorption-coefficient gain optical fiber are Er < 3 + > and Yb < 3 + > co-doped active optical fibers, the pumping coupler couples externally transmitted 1.5-micron signal light and pumping light output by the pumping source, and 1.5-micron laser amplified by the low-absorption-coefficient gain optical fiber and the high-absorption-coefficient gain optical fiber sequentially passes through the cladding light stripper and then is output. The 1.5 [mu] m erbium-ytterbium co-doped fiber laser amplifier provided by the invention can inhibit generation of 1 [mu] m ASE (Accelerated Solvent Erbium) laser and reduce heat production of a fiber entrance point of a laser, thereby realizing high-power 1.5 [mu] m laser output.

The utility model relates to a heavy-load wheel-side planetary reducer which is characterized in that an input flange is connected with a fixed flange, and an input shaft is arranged in the fixed flange; the connecting flange is connected with the fixed flange, and the first double-row full roller bearing is arranged between the fixed flange and the connecting flange; the connecting flange, the flange gear ring and the rotating shell are fixedly connected; a high-speed shaft is arranged on the center shaft in the rotating shell, one end, close to the fixed flange, of the high-speed shaft is in transmission connection with the input shaft, a planetary gear train is arranged on the high-speed shaft, a gear ring is arranged on the inner wall of the flange gear ring and is in meshing transmission with the planetary gear train, and a second double-row full roller bearing is arranged between the planetary gear train and the rotating shell. The planetary gear train is used for supporting the rotary shell under rolling friction; a plurality of deep groove ball bearings are arranged between the planetary gear train and the input shaft and between the planetary gear train and the high-speed shaft and used for supporting the planetary gear train. The utility model has the advantages that the radial load bearing capacity is effectively improved; heating is reduced, and transmission efficiency is improved; and the hub reduction requirement under the heavy-load working condition is met.

The utility model discloses an isolation device for wild plant protection belongs to plant protection technical field, and this isolation device includes two support columns, and the support column one side fixed mounting is a plurality of half ring board, and the half ring board inner wall fixed mounting is the protective net, and the both ends of half ring board are fixedly installed the vertical board jointly, and the vertical board on two support columns is mutually jointed, and the support column one side is provided with the sliding slot, and the sliding slot inner wall fixed mounting is the baffle, and the baffle with sliding slot inner wall bottom end between rotation installation first screw rod, and the sliding block is screwed on first screw rod, and the sliding block one side articulated support rod, and the sliding slot inside bottom end rotation installation pressure -resistant board, and the support rod other end with pressure -resistant board one side articulated, and this device is fixed stable, and the assembly is convenient, and the compression resistance is strong, and the dustproof board protection part can be long -term stable protection wild plant, and satisfies the protection demand.

The utility model discloses a high-power optical isolator, which comprises a magnetic ring, a first diffraction lens, a second diffraction lens, a first wedge-shaped birefringent crystal, a second wedge-shaped birefringent crystal and a dynamic adjustable wedge-shaped angle, accurate matching and regulation of incident light with different wavelengths and powers can be achieved, the bearing capacity of the optical isolator for high-power laser is improved, all optical elements are fixed through optical cement, the problem that traditional organic cement loses efficacy due to the influence of high temperature and strong light is avoided, the stability of the optical isolator is ensured, and the service life of the optical isolator is prolonged. The dynamic adjustable wedge-shaped angle is finely adjusted through piezoelectric ceramics, the precision and stability of the optical isolator are improved, the surfaces of the first diffraction lens and the second diffraction lens are plated with aluminum nitride heat conduction layers, and micron-sized cooling flow channels are embedded, so that the temperature of an optical element is effectively reduced, and performance reduction or damage caused by overheating is prevented; and the service life of the optical isolator is prolonged.

This utility model discloses a heat exchanger shell, including a heat exchanger, connecting flange, cold medium inlet and outlet, shell, support frame, and other components. The heat exchanger is equipped with a shell, which is assembled from symmetrical first protective side shells and fixed to the flange with bolts. The diameter in the middle is larger than that at both ends, forming a cavity that can disperse impact pressure and protect the heat exchanger body. The protective sleeve is assembled from second protective side shells and fixed to the first protective side shell, which protects the cold medium inlet and outlet. The first and second reinforcing ribs respectively enhance the connection strength between the shell and the protective sleeve, and between the support frame and the shell. The top of the support frame is provided with a support groove to support the flange and disperse the support pressure. The cavity is lined with thermal insulation cotton, which serves to insulate and buffer impact. This heat exchanger shell has good protective performance, thermal insulation performance, and load-bearing capacity. It is easy to install and disassemble, convenient for maintenance, and suitable for various heat exchanger equipment.

The utility model provides a kind of self-locking trailer hook device, it is related to trailer hook technical field, including rotating component, first transmission component, second transmission component, locking piece and trailer hook, rotating component is connected with locking piece by first transmission component;Rotating component is connected with trailer hook by second transmission component, and trailer hook is provided with locking portion;Rotating component can drive locking piece reciprocating movement by first transmission component, rotating component can drive trailer hook rotation by second transmission component, when trailer hook rotates to extend position or retracted position, locking piece can be locked with locking portion;The utility model linkage between locking piece and trailer hook on one hand, can effectively simplify structure, improve operation convenience, on the other hand, can realize self-locking, improve the stability of trailer hook extension state, to ensure the safety and reliability of trailer process, while being able to optimize stress, improve the load carrying capacity of device, prolong the service life of component, reduce production and use cost.

The invention discloses a wearable waxberry quality dynamic detection and display method and device. The method comprises the following steps: inputting spectral images acquired by three spectral image sensors into a target identification model, and identifying the positions of waxberries in the images; performing binocular stereo matching on the first characteristic spectrum image and the second characteristic spectrum image, and extracting the spatial position and diameter of each waxberry; aiming at the first characteristic spectrum image and the second characteristic spectrum image, respectively extracting a gray value of the position of each waxberry as two characteristic reflection brightness; taking an R channel pixel value of the position of each red bayberry in the RGB spectral image as reference brightness; the ratio of the two characteristic reflection brightness to the reference brightness is used as two corrected characteristic relative reflectivity, and the sugar degree and acidity of the waxberry are obtained; real-time red bayberry quality identification is provided for a user, and guidance is provided for red bayberry picking.

The application provides an X-shaped outrigger truss lever type negative stiffness energy dissipation outrigger system, relates to the technical field of negative stiffness energy dissipation shock absorption in the technical field of building engineering, and comprises a core tube, a frame column, an X-shaped outrigger truss and a double shock absorption component, wherein the double shock absorption component comprises a displacement amplification lever, an upper damper, a lower damper, an upper pre-pressing spring and a lower pre-pressing spring; in an initial state, the axis of the upper pre-pressing spring, the hinge joint of the upper end of the displacement amplification lever and the upper damper, the hinge joint of the lower end of the displacement amplification lever and the lower damper, and the axis of the upper pre-pressing spring are in the same straight line. The application combines the displacement amplification mechanism of a lever type mechanism and the lever type negative stiffness displacement amplification mechanism, has a double displacement amplification effect, the pre-pressing force is entirely applied to a non-load-bearing component, and two groups of pre-pressing springs and dampers can be arranged on one outrigger truss to generate a double damping energy dissipation effect.

The utility model discloses a clamping circuit, a module and an integrated circuit, the clamping circuit comprises a voltage delay unit, a reverse shaping unit and a voltage release unit, the voltage delay unit is connected with a power supply, the reverse shaping unit and a grounding end, the reverse shaping unit is connected with the power supply, the voltage release unit and the grounding end, and the voltage release unit is connected with the power supply. The voltage release unit is connected with the power supply and the grounding end; the voltage delay unit is used for delaying and caching an EOS voltage and converting the EOS voltage into a charging voltage when the power supply outputs the EOS voltage; the reverse shaping unit is used for starting the voltage release unit when the charging voltage reaches a preset value; and the voltage release unit is used for releasing the EOS voltage to the grounding end after being started. The breakdown voltage of the TVS tube in the integrated circuit provided with the clamping circuit can be smaller than that of the clamping circuit, so that the model selection difficulty of the TVS tube in the integrated circuit is reduced.

The utility model discloses a fish-scale-shaped air flow distribution plate which comprises an air flow distribution plate body, the air flow distribution plate body is circular, a plurality of fish-scale-shaped air holes are uniformly distributed in the middle of the air flow distribution plate body in an array mode, the fish-scale-shaped air holes are uniformly distributed in a circumferential array mode, and every two adjacent circles of fish-scale-shaped air holes are arranged in a staggered mode. The middle of the airflow distribution plate body is also provided with a plurality of air leakage holes which are uniformly distributed along the circumference, and the airflow distribution plate body is fully provided with fish scale-shaped air holes except the outer edge mounting part and the pressure leakage holes. The fish scale-shaped air holes are uniformly distributed in the circumferential array, so that the air inlet airflow direction is the circumferential direction, rotational flow is easily generated, the air outlet direction and the air outlet quantity are uniform, the material in the material bin is more uniformly influenced by the airflow, the fluidization effect is better, the inner wall of the fluidized bed material bin is not easily and directly impacted, the generated backflow interference is less, and the pressure and energy loss is less; and the fan power and the energy consumption required by the whole set of equipment are greatly reduced.