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

The invention discloses a corrugated sandwich protective structure of a battery box of an electric vehicle. The protective structure comprises a box body and a box cover, wherein the box body is not closed at top, is composed of a baseplate and a baseplate wallboard fixed around the baseplate and is used for accommodating batteries; the box cover comprises a top plate and a top-plate wallboard fixed around the top plate, and the box cover and the box body are buckled so as to form a closed space. The protective structure is characterized in that the baseplate and the baseplate wallboard are respectively made of a corrugated sandwich protective plate. According to the invention, the box body and the box cover are made of the corrugated sandwich protective plates, so that the batteries can be prevented from being damaged; the corrugated sandwich protective structure has the advantages of high specific stiffness, high specific strength, high fatigue life, strong impact resistance and shock resistance, good impacting energy absorption property, light weight, and the like, thereby facilitating the promotion and application of electric vehicles and passenger cars.

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 discloses an azimuth device applicable to a vehicular photoelectric turntable. The azimuth device comprises a revolving shaft system, an azimuth shell, a rotary transformer and a torque motor. The revolving shaft system comprises an azimuth dead shaft, an azimuth moving shaft, an azimuth rotating adaptor disc and two groups of bearings, the azimuth dead shaft is connected with the azimuth moving shaft and the azimuth rotating adaptor disc respectively via a first bearing and a second bearing, the first bearing bears biaxial loads, the second bearing is larger in diameter and bears radial and tipping loads, and thereby the rotating disc type revolving shaft system borne by the internal and external bearings is formed. The revolving shaft system as well as the rotary transformer and the torque motor are respectively positioned on an upper side and a lower side of an annular transverse plate in the middle of the azimuth shell and are independent to one another. Furthermore, a comprehensive labyrinth felt collar sealing structure is adopted. The azimuth device has the advantages of simple structure, low height, light weight, good maintainability, excellent expansibility, strong environmental suitability and the like, mechanical characteristics and capabilities of resisting shock, vibration and large-angle inclination of the photoelectric turntable are effectively improved, and tracking precision of photoelectric tracking equipment is guaranteed.

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.

A kind of non-end board fuel battery pile which fits for low temperature starting that comprises film electrode, double plate, collecting down-lead board, electrical insulating clapboard and fastening circle, electrical insulating clapboard and a pair of collecting down-lead board that form a group of current output framework. Film electrode, cuniform double plate and current output framework enclose a cylindric fuel battery pile, and they are fastened to an integral by two clamping circles. It also includes upper cover board and lower cover board which are connected with two axises of the cylinder fuel battery pile, the flow cavity of the hydrogen gas or / and air or / and cooling fluid is set in the upper cover board and lower cover board, corresponding liquid inlet and outlet are set in the upper cover board and lower cover board. The battery pile of the invention can not possess cumbersome battery end plate in routine battery pile, in stead of fastening circle, it can be very dexterous; stress in inner electrode of the battery pile is even, there is not problem about distortion of the end plate; the balance of water and heat of the battery pile is well, it is consistent with other electrodes; it fits for low temperature starting.

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 relates to a grid switching method of a control system for inner-city rapid rail vehicles and the control system. An AC (alternating current) or DC (direct current) high voltage signal input by a catenary is directly sent to an AC-DC dual-purpose electronic type voltage transformer after obtained by a pantograph, processed by the AC-DC dual-purpose electronic type voltage transformer and sent to locomotive related equipment in a DC or AC analog manner, and meanwhile, an AC or DC switching value signal is sent to the locomotive related equipment to be used as the unique signal for detecting the voltage system of a power supply grid and the grid voltage value. The control system comprises a high voltage head part and a control case part, wherein the high voltage head part switches 25 kV AC or 1.5 kV DC high voltage from the power supply grid into a proper voltage signal capable of being processed by a weakening device after resistive subdivision; then the control case transmits an input sampling signal to an AC analog output circuit or a DC analog output circuit to be output in an analog manner; the output signal is sent to the locomotive related equipment after amplified and intensified.

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 photoelectric encoder coded disc, a photoelectric detection device, a photoelectric encoder and a robot, and belongs to the technical field of encoders. The photoelectric encoder coded disc comprises a gear-shaped disc body and a code reading plate which is perpendicularly connected with the gear-shaped disc body, and the whole photoelectric encoder coded disc is in the shape of a mouse cage. The photoelectric detection device comprises a light source transmitting unit, a light source receiving unit and a control circuit board, and when the photoelectric encoder coded disc is used with the photoelectric detection device, the code reading plate is inlaid between the light source transmitting unit and the light source receiving unit. By the mouse-cage-shaped structure of the photoelectric encoder coded disc, the light source transmitting unit and the light source receiving unit are not required to be placed on two sides of an end surface of the disc-shaped coded disc, so that a control circuit board can be stably connected with the light source transmitting unit and the light source receiving unit, photoelectric signals are transmitted well, the whole structure of the photoelectric encoder is stable, anti-noise performance in signal transmission is good, and the shock resistance is high.

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 relates to a mobile collaborative navigation test platform. Existing spatial data acquisition is carried out manually, manual spatial data acquisition in narrow and dangerous places is dangerous, manual data acquisition requires high labor intensity, and the working environment is poor. Thus, a piece of equipment for replacing manual spatial data acquisition is needed. The mobile collaborative navigation test platform comprises a crawler chassis (8). A battery cabin (7) is installed on the crawler chassis (8). A control cabin (6) is installed on the battery cabin (7). A sensor cabin (4) is installed on the control cabin (6). A pan-tilt-zoom device (5) is installed on the sensor cabin (4). A ten-inch display (1) is installed behind the pan-tilt-zoom device (5). An external notebook computer bracket (3) is installed behind the ten-inch display (1). The mobile collaborative navigation test platform of the invention is used for data acquisition.

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.

A resonator comprising a base portion, first and second vibrational arms, and a frame having first, second, third and fourth frame portions, the first and second frame portions extending in a common direction with the vibrational arms, third frame portion being connected to the base portion, the first frame portion being connected to the second frame portion through the third and fourth frame portions, each of the vibrational arms having a first vibrational portion including a first width and a first length, and a second vibrational portion including a second width greater the first width and a second length less than the first length, a groove being formed in at least one of main surfaces of each vibrational arm, and a spaced-apart distance between the second vibrational portions being less than a spaced-apart distance between the first frame portion and the first vibrational portion of the first vibrational arm.

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 relates to the technical field of electrical equipment, and provides a self-moving robot which includes a body, a bump plate and a flexible sealing part. The body is provided with an optical sensing device, the bump plate is movably connected to the body, the flexible sealing part is arranged between the body and the bump plate, the flexible sealing part defines a sealed space, and the sealed space is configured to accommodate at least part of the optical sensing device, wherein the flexible sealing part can expand and contract along with the movement of the bump plate. The dust-proof effect can be significantly improved on the basis of ensuring an obstacle avoidance function of the self-moving robot to protect the optical sensing device.

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 a grid switching method of a control system for inner-city rapid rail vehicles and the control system. An AC (alternating current) or DC (direct current) high voltage signal input by a catenary is directly sent to an AC-DC dual-purpose electronic type voltage transformer after obtained by a pantograph, processed by the AC-DC dual-purpose electronic type voltage transformer and sent to locomotive related equipment in a DC or AC analog manner, and meanwhile, an AC or DC switching value signal is sent to the locomotive related equipment to be used as the unique signal for detecting the voltage system of a power supply grid and the grid voltage value. The control system comprises a high voltage head part and a control case part, wherein the high voltage head part switches 25 kV AC or 1.5 kV DC high voltage from the power supply grid into a proper voltage signal capable of being processed by a weakening device after resistive subdivision; then the control case transmits an input sampling signal to an AC analog output circuit or a DC analog output circuit to be output in an analog manner; the output signal is sent to the locomotive related equipment after amplified and intensified.

The invention belongs to the technical field of cutter rows, and particularly relates to a cutter row used for reverse turning of the end face on a vertical lathe. The cutter row is characterized by comprising a cylindrical cutter row rod with the side face provided with an installing positioning plane, a cylindrical cutter row middle part fixedly arranged at the lower end of the cutter row rod and forming a concentric step shape with the cutter row rod, a cylindrical cutter row bottom part fixedly arranged at the lower end of the cutter row middle part and forming a non-concentric step shaft shape with the cylindrical cutter row middle part, and a cutter arranged on the side face of the cylindrical cutter row bottom part. A transition circular bead is arranged at the connecting position of the cylindrical cutter row bottom part and the cylindrical cutter row middle part. The cutter row rod, the cutter row middle part and the cutter row bottom part are integrally formed. The cutter row is high in stress strength, good in anti-knock performance and low in manufacturing cost, safety is achieved during using, the quality of machined products can be guaranteed, and the machining efficiency is high.

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.

The invention discloses a hanging-down type movable fertilizing device. The hanging-down type movable fertilizing device comprises a frame (1), wherein a fertilizer tank (2) is formed in the upper part of the frame (1), a closing and opening device is arranged at the bottom of a tank opening, and the closing and opening device is used for sowing a fertilizer to and fro through a moving track (3) on the right side, so that the fertilizer is tiled on small-scale discharge openings (4); an opening device for the discharge openings is connected with a long-range remote control device (5), and universal wheel moving devices (6) are arranged at the bottom of the frame (1); a lifting device (7) is arranged to regulate the height of the whole body of the frame (1); a sensing module (8) is arranged on the side edge of the bottom of the fertilizer tank (2) so as to monitor the consumption condition of the fertilizer and remind an operator to replace the fertilizer; quantitating modules (9) are arranged at the upper ends of the discharge openings (4) so as to limit the inputting quantity of the fertilizer; a prompting device (10) is arranged and connected with the long-range remote control device (5), so that a user is reminded to add the fertilizer, and the operating efficiency of fertilizing seeds is effectively improved.

The invention provides a display device, relating to the liquid crystal display device field. The invention solves the technical problem of providing a display device with strong vibration strength. The display device comprises a backlight module and a display panel; wherein the backlight module is provided with a light outlet surface and a positioning region arranged outside the light outlet surface, the display panel comprises a display substrate, a driving circuit board and a flexible circuit board connecting the display substrate and the driving circuit board; the display substrate is arranged on the light outlet surface, the driving circuit board is arranged in the positioning region; the driving circuit board is provided with a clamping hole, the positioning region is provided with a clamping structure; the clamping structure is provided with a body, the base part of the body is fixed in the positioning region; the clamping structure is provided with at least two laminating arms extending outward from the side wall of the body; and the clamping structure is provided with at least two buffer arms.