91results about How to "Strong shock resistance" patented technology

A double longitudinal mode laser offset frequency locking method and a device based on a thermoelectric cooler belong to the technical field of laser application. In the invention, the frequency of the output laser of a power balance type double longitudinal mode frequency stabilized laser A is taken as the reference frequency, and simultaneously the thermoelectric cooler is used for controlling the temperature to adjust the cavity length so that a fixed difference value is maintained between the frequency of the output laser of n>=1 double longitudinal mode lasers B1, B2, ..., Bn and the reference frequency, thus ensuring the output laser of the double longitudinal mode lasers B1, B2, ..., Bn to have uniform frequency value and the relative frequency stability and the frequency invariance to reach 10 and overcoming the shortcoming that the frequency invariance between the frequency stabilized lasers only reaches 10-10 because of inconsistency of the reference frequency in the traditional frequency stabilized lasers.

The invention relates to a controller, in particular to a buffering shockproof controller which is high in shockproof performance and long in service life and facilitates ventilation and cooling. The buffering shockproof controller comprises first cushions, elastic pieces, supporting rods, gears, a first driven wheel, a first tie wire, slide rails, slide blocks, a second tie wire, second cushions, a third tie wire, a second driven wheel, rubber cushions, a fourth tie wire, racks, electric push rods, a controller body and a box. The inner rear side wall of the box is connected with the controller body; the first cushions are symmetrically arranged at the inner top and the inner bottom of the box; the first cushions are connected with the elastic pieces; and the tail ends of the elastic pieces are connected with the second cushions. The buffering shockproof controller achieves the effects of high shockproof performance, convenient ventilation and cooling and long service life and is simple in structure and low in manufacturing cost.

The invention provides a scanning structure, which comprises a plurality of scanning units. Each scanning unit has its own scanning area. The scanning units scan an environment with an emitted light beam by means of splicing to obtain a spliced scanning area. The splicing refers to that the propagation paths of the edge light of every two adjacent scanning areas overlap or coincide after emissionfor a certain distance. The invention further provides a corresponding piece of laser radar and a vehicle. Multiple spatial light modulators are spliced at a certain angle, and a wide or 360-degree scanning range can be achieved without a rotary mechanical structure. Arbitrary beam can be output. The ability to resist vibration is strong. A high-precision, high-efficiency and high-stability scanning effect can be achieved with fewer lasers. The blind area at the splicing point can be controlled to be very small, and has little effect on the scanning. The effects of stable operation, low cost and high precision are achieved.

The invention discloses an air pumping system comprising an energy recovery fan. The air pumping system comprises a first air-pumping fan used for pumping air of an air pollution treatment device, a recovery fan used for recovering energy, a diversion mechanism used for guiding air pumped out by the first air-pumping fan to the recovery fan, a second air-pumping fan used for applying the energy recovered by the recovery fan, and a frame, wherein a lengthened centrifugal fan comprising multiple isolation air delivery channels is adopted as the first air-pumping fan; by virtue of a driven device, an air delivery unit and an auxiliary support, the lengthened centrifugal fan is capable of meeting the requirement of impellers for air inlet amount by virtue of increasing the conical air-delivery air inlet diameter. The recovery fan and the second air-pumping fan can be used for efficiently and directly recycling the energy in air exhausted from a first air outlet under the guidance of the diversion mechanism. The air pumping system can be used for providing powerful guarantee for efficiently treating the pollution of air, especially air containing haze.

The invention relates to an anti-knocking mobile phone case comprising an accommodation cavity for accommodating a mobile phone. A case body coats the outside of the accommodation cavity and has a bottom cavity; an inflatable airbag is arranged inside the bottom cavity; and an air inflation hole is formed in the case body by corresponding to the inflatable airbag. Compared with the existing mobile phone shell, the anti-knocking mobile phone has advantages of novel appearance and good anti-shake effect.

The invention provides an underground energy-saving house and relates to the building technology field. In the invention, an outer wall part is built in soil layers, a roof is built on or above the ground, windows are installed in the position of the roof, a staircase is installed on the roof, and a door is installed on the staircase. When the house is built, a pit larger than the house to be built is dug in the position where the house is to be built, construction is conducted in the pit, soil is backfilled into the pit after the construction, and downward stairs are built in the staircase for people to enter and exit. The house has the advantages of saving land and building materials, saving energy resource and good safety.

A converter valve includes a top shielding cover, a bottom shielding cover, at least two vertically stacked valve layers, and a maintenance platform. The top shielding cover is disposed at an upper portion of an uppermost valve layer. The bottom shielding cover is disposed at a lower portion of a lowermost valve layer. Each of the valve layers comprises two valve modules disposed side-by-side in a horizontal direction. The two valve modules are electrically connected via a busbar and mechanically connected via securing connectors. A lower valve layer is connected to an upper valve layer in a suspended manner. A body of the maintenance platform is located between horizontal planes on which two vertically adjacent valve layers are located, or between horizontal planes on which the lowermost valve layer and the bottom shielding cover are located.

The invention discloses a novel vertical numerical control turning and grinding composite machine tool. The novel vertical numerical control turning and grinding composite machine tool comprises a base and an alternating current servo motor, wherein the top end of the base is provided with a workbench, the upper surface of the base is provided with a stand column, the alternating current servo motor is arranged on the outer side of a protective shell, the tail end of a rotating shaft is connected with a coupler, the tail end of the coupler is connected with a transmission lead screw, and the front side of a cross beam is sequentially provided with a grinding tool rest and a turning tool rest from left to right. The novel vertical numerical control turning and grinding composite machine tool is convenient to install, can conveniently adjust the pretightening of an X-axis screw rod and a Z-axis screw rod, can increase the rigidity of the screw rods, saves the occupied area, improves theautomation degree, improves the depth of a ground inner hole, increases the range of the ground inner hole, reduces the vibration of a grinding wheel in the grinding process, accordingly improves thegrinding precision, has the characteristics of high positioning precision, stability, reliability, compact structure and the like and can ensure normal work of a spindle under the conditions of largecutting depth and large feeding.

The invention discloses a U-shaped tube heat exchanger with a baffle plate provided with an air bag structure. The U-shaped tube heat exchanger comprises a cylinder body, a shell flange gasket a, a shell flange gasket b, a shell flange a, a shell flange b, a tube plate component, an elliptical head a, an elliptical head b, a tube box cylinder body, a pass partition plate, a welding neck flange a,a welding neck flange b, a welding neck flange c, a welding neck flange d, a saddle support a, a saddle support b, an equal-length stud and a hexagon nut; the tube plate component is composed of a tube plate, a baffle plate a, a baffle plate b, a baffle plate c, a baffle plate d, a connecting plug a, a connecting plug b, a connecting plug c, a connecting plug d, a connecting plug e, a connecting plug f, an air conduit a, an air conduit b, an air conduit c, an air conduit d, a U-shaped heat exchange tube, a distance tube, a pull rod and an air bag. The vibration at the gap of the baffle plate and the cylinder boxy and fluid short-circuit due to the own structure of the U-shaped tube heat exchanger can be effectively solved by adopting the air bag structure.

The invention belongs to the technical field of nuclear reactor electrical penetrating member equipment, particularly relates to a medium-voltage electrical penetrating member ceramic component and solves the problem that existing electrical penetrating members are low in load bearing capability. The medium-voltage electrical penetrating member ceramic component comprises a cylindrical medium-voltage magnetic member. The medium-voltage electrical penetrating member ceramic component is characterized in that a magnetic member flange sleeves one end of the medium-voltage magnetic member, a buffering connection mechanism enabling the magnetic member flange and the medium-voltage magnetic member is arranged between the peripheral inner side of the magnetic member flange and the peripheral outer side of the same, and a magnetic member clamping seat is inserted at the other end of the medium-voltage magnetic member and fixedly arranged at the end of the medium-voltage magnetic member through a positioning structure. The medium-voltage electrical penetrating member ceramic component has the advantages that the component is simple in structure, parts are high in connecting strength, and the component is good in sealing performance, high in insulativity and pressure bearing capability, good in shock-proof and buffering effect, resistant to radiation and aging and long in service life.

The invention relates to a portable liquid sampling box which has strong isolation and seal properties, is durable in use and is convenient to transport. The portable liquid sampling box comprises a box body on which a box cover is arranged; the box body is internally provided with circular groove barrels; the inner bottom wall of each circular groove barrel is connected with a spring; the upper end of each spring is connected with a supporting plate; the box body is divided into a plurality of layers, and every two adjacent layers are fastened together in the vertical direction; the box body is internally divided into a plurality of utensil tanks in which the circular groove barrels are arranged; the box body comprises a large bottle box, a small bottle box and a tool box, wherein the tool box is internally divided into a funnel area, a large tool area and a small tool area; the funnel area is internally provided with an iron case; the top wall of the box cover is internally connected with a buffer sponge; the inner side walls and the bottom wall of the box body are connected with buffer sponges; the inner side walls of the circular groove barrels are also connected with buffer sponges; a universal wheel and a directional wheel are fixed below the box body; an expansion handle is hinged on the box body through a hinge; elastic clamping slots are fixedly arranged on the side walls of the box body; and the expansion handle is clamped in the elastic clamping slots.

The invention relates to the technical field of solar module packaging, in particular to a solar module packaging box, which includes a rectangular bottom plate, a tray fixed on the bottom of the bottom plate, and a box with an opening at the lower end fastened to the bottom plate. Enclosure, the enclosure is set at a distance of 1-3cm from the edge of the bottom plate, the enclosure includes a pair of fixed plates and a pair of baffles oppositely arranged, and two sets of card slots are respectively arranged on the inner walls of the fixed plates A group of card slots are set on the bottom plate, the card slots on the fixed plate respectively correspond to the same plane as the card slots on the bottom plate, and a port is set on the baffle. Compared with the prior art, the solar module packaging box of the present invention has a firm structure and strong shockproof performance, and can effectively protect the safety of the solar module during transportation; the solar panels can be firmly arranged in the box to prevent the solar panels from being Collision; each part can be disassembled and recycled, reducing product cost.

The invention provides an F25mm high-resolution and low-distortion half-group mobile industrial lens and a working method thereof. The F25mm high-resolution and low-distortion half-group mobile industrial lens includes a lens barrel assembly and an optical system arranged in the lens barrel assembly. The optical system includes a front group of lenses, a diaphragm, a rear group of lenses, a compensation group of lenses and an imaging plane arranged in the direction from the incidence of light to the imaging plane. The front group of lenses is composed of a negative crescent lens A-1 and a first cemented group of lenses formed by closely connecting a negative crescent lens A-2 and a negative crescent lens A-3. The rear group of lenses is composed of a second cemented group of lenses formedby closely connecting a biconcave lens B-1 and a biconvex lens B-2, and a biconvex lens B-3. The compensation group of lenses is composed of a third cemented group of lenses formed by closely connecting a biconvex lens D-1 and a biconcave lens D-2. The eight lenses in the front group, the rear group and the upper part of the compensation group of the industrial lens are made of an optical glass material with high refractive index and low dispersion, so that the MTF of the lens can meet the relational expression 150lp/mm>0.3.

The invention relates to the technical field of pipeline design, and particularly relates to a pipeline connecting joint. The pipeline connecting joint comprises a pipeline joint main body and a jointsupporting shaft allowing an inner ring of the pipeline joint main body to axially penetrate through, wherein a first grid baffle and a second grid baffle which are distributed at intervals in the axial direction are mounted on the joint supporting shaft; the first grid baffle and the second grid baffle are circular plates, and inner holes allowing the joint supporting shaft to axially penetratethrough and erecting the joint supporting shaft are formed in the central areas of the first grid baffle and the second grid baffle; and the pipeline joint main body is positioned between the first grid baffle and the second grid baffle, so that turnover is facilitated.

The invention relates to a fastener for assembly of track panels, in particular to an anti-loosing, double-layer and strong-anchoring fastener for assembly of track panels of a low- and medium-speed maglev track, which is provided with a fastening nut, a lock nut, a heavy spring and a rubber gasket for joint action. The anti-loosing, double-layer and strong-anchoring fastener is capable of meeting various requirements of track sleepers on one to four strong-anchoring bolts in assembly and design, the track is more stable and safer, and the height of the fastener can be adjusted from -20mm to +60mm. The anti-loosing strong-anchoring fastener has the advantages of simple structure, easiness in assembly, high adjusting precision, high height adjustment and the like, and the problems of operational hazards and the like of a maglev train due to loosing of the fasteners and the like can be solved effectively.