25results about How to "Small impact" patented technology

The invention discloses a power-interruption-free multiplexing actuator two-gear change wheel-side dual-motor independent driving system which comprises a first driving motor, a first primary speed reducer, a first duplex planetary compound gear train, a first intermediate shaft, a first secondary speed reducer, a first output shaft, a first controllable one-way clutch and a first hydraulic multi-plate friction clutch. And the second driving motor, the second first-stage speed reducer, the second duplex planetary compound gear train, the second intermediate shaft, the second second-stage speed reducer, the second output shaft, the second controllable one-way clutch and the second hydraulic multi-plate type friction clutch. The driving systems are arranged in a centralized mode and independently drive wheels on one side, and the same gear shifting control mechanism is reused on the two sides. By controlling the controllable one-way clutch and the multi-piece type friction clutch, seven driving modes including first-gear driving, second-gear driving, neutral gear, first-gear regenerative braking, second-gear regenerative braking, reverse running and parking braking can be achieved, and switching of the driving modes on the two sides can be completed at the same time without power interruption.

The present application provides an electronic device for measuring blood pressure. The electronic device for measuring blood pressure of the present application comprises a measuring assembly, an airbag and a fluid pipeline; the fluid pump and the pressure sensor in the measuring assembly are connected to the airbag through a first fluid pipeline and a second fluid pipeline respectively, the first pipe opening of the first fluid pipeline and the second pipe opening of the second fluid pipeline are located on the same side of the airbag, and the opening direction of one of the first pipe opening and the second pipe opening is away from the other, so that the first pipe opening and the second pipe opening are far away from each other. In this way, the interference of the airbag airflow on the pressure sensor is reduced, and the measurement accuracy of blood pressure is improved.

The invention discloses an electric rotor type compressor, an air conditioning system and a vehicle, the electric rotor type compressor comprises: a first shell having an oil separation cavity, a first communication channel and a second communication channel formed in the shell wall of the first shell, an oil separation outlet of the oil separation cavity communicating with a refrigerant discharge port through the first communication channel; the compression component comprises an air cylinder assembly, a piston, a crankshaft, a first bearing and a second bearing, a first exhaust cavity is defined between the first bearing and the first shell, the compression component is provided with a first exhaust port and communicates with the first exhaust cavity, and an oil separation inlet of the oil separation cavity communicates with the first exhaust cavity through a second communication channel. According to the electric rotor type compressor, the first exhaust cavity is formed between the first bearing and the first shell, the strong relevance between the oil content position and the exhaust position and the middle position structure of the shell part is reduced, and the change difficulty is low when the exhaust structure and the oil content structure are changed. The structural design difficulty and the assembling difficulty are reduced, and the part universality of the electric rotor type compressor is improved.

The application discloses a PDC drill bit suitable for continuous and rapid drilling of a limestone stratum and application thereof. The drill bit comprises a drill bit body, the drill bit body is provided with a blade wing, and the blade wing is provided with cutting teeth arranged in double lines. The double lines comprise a main line and a secondary line, the main line and the secondary line are located on the same crown line, the main line is located on an infeed contact surface of the blade wing, and the secondary line is located behind the main line. The cutting teeth comprise plane teeth and flow-passing special-shaped cutting teeth, the main line is provided with main line plane teeth, and the secondary line is provided with flow-passing special-shaped cutting teeth. The flow-passing special-shaped cutting teeth are provided with a through tooth flow passage, and the blade wing is provided with a blade wing flow passage corresponding to the tooth flow passage. The application adopts the same crown line double line tooth arrangement, greatly reduces the impact force on the cutting teeth, and avoids early damage of the cutting teeth. The application is provided with the tooth flow passage and the blade wing flow passage, improves the cooling effect of the cutting teeth, avoids thermal damage of the cutting teeth, prolongs the service life of the cutting teeth, and ensures that the drill bit has continuous aggressiveness.

The utility model discloses a contact part and relay, this contact part includes at least one switch module, this switch module includes at least two along the first direction arrangement's moving contact piece, and with each moving contact piece respectively corresponding at least two static contact piece, in switch module, each moving contact piece has the fixed end and the movable end along the second direction distribution, and the fixed end is opposite the static contact piece fixed of this moving contact piece, and the movable end is suitable for the direct action or swing in third direction opposite this moving contact piece's fixed end to with corresponding static contact piece close or disconnect, wherein, at least two in the first direction adjacent moving contact piece's movable end is opposite along the second direction, and the second direction is perpendicular with the first direction or each other has the angle of clamping, and the third direction is perpendicular with the first direction, the second direction all. Adopt above -mentioned technical scheme, can improve the problem that traditional relay contact part occupies big space.

A bulk acoustic wave resonator device of the present invention comprises: a cavity; a first electrode layer, at least one end of the first electrode layer being located above or inside the cavity; a piezoelectric layer, the cavity and the first electrode layer being located on a first side of the piezoelectric layer; a second electrode layer located on a second side, a region where the first electrode layer, the second electrode layer and the piezoelectric layer overlap being a resonance region; a first passive structure located on the first side and having a first overlapping portion with at least one edge of the first electrode layer; and a second passive structure located on the second side and having a second overlapping portion with at least one edge of the second electrode layer. The first passive structure comprises: a first raised portion located inside the resonance region; and a first extension portion located outside the resonance region, wherein the first raised portion protrudes with respect to the first extension portion. The second passive structure comprises: a second raised portion located inside the resonance region; and a second extension portion located outside the resonance region, wherein the second raised portion protrudes with respect to the second extension portion. The present invention suppresses parasitic edge mode, and improves Zp and corresponding Q value.

The invention relates to the technical field of vacuum units, in particular to an exhaust pressure pulsation adjusting device for a vacuum unit and the vacuum unit comprising the exhaust pressure pulsation adjusting device. The adjusting mechanism comprises a cylindrical structural part and an adjusting buffering body. And a second airflow channel is formed among the air inlet end of the cylindrical structural part, the inner cavity and the communicating hole. The adjusting buffer main body is arranged in an inner cavity of the cylindrical structural part and divides the cylindrical structural part into a buffer area and a pneumatic buffer area. In the exhaust process, the buffering body is adjusted in a self-adaptive mode according to the pressure difference condition between the buffering area and the pneumatic buffering area to conduct separation of the airflow channels, and impact and acting force on a pipeline are small. When the exhaust pressure is too large, the adjusting and buffering body can conduct damping and buffering, and the purpose of adjusting exhaust pressure pulsation can be achieved. The exhaust pressure pulsation adjusting device has the advantages of being small in space size, good in sealing performance, simple in structure and the like.

The utility model provides a kind of light supporting device for steeply inclined thin coal seam belongs to coal mining technical field, the light supporting device for steeply inclined thin coal seam includes side support frame in both sides, light supporting assembly is set between side support frame, light supporting assembly includes supporting bottom plate and supporting net in both sides, one side of supporting net is connected with steel chain, another side is connected with steel chain, electric winch is set on side support frame, one end of steel chain is connected with supporting net, and the other end is fixedly connected with the reel of electric winch by ring buckle;Side support frame includes stand, crossbeam and inclined strut, trapezoidal bottom plate is set in the bottom of stand, crossbeam is fixedly connected with stand by bolt, one end of inclined strut is connected with stand, and the other end is connected with bottom plate;Multiple groups of sliding slots are set on crossbeam, pulley is rotatably set in sliding slot, steel chain is wound around pulley;The utility model can solve the problem that dynamic support demand cannot be met.

A BAW resonance device, comprising: a first electrode layer, the first electrode layer comprising a first sub-layer and a second sub-layer; a piezoelectric layer, the first electrode layer being located on a first side of the piezoelectric layer; a second electrode layer, located on a second side, the second electrode layer comprising a third sub-layer and a fourth sub-layer, and a region where the first sub-layer, the third sub-layer, and the piezoelectric layer overlap being a resonance region; a first passive structure, in contact with at least one edge of the first sub-layer; and a second passive structure, in contact with at least one edge of the third sub-layer. The first passive structure comprises: a first lift portion, located in the resonance region; a first passivation portion, located between the first lift portion and the first electrode layer; and a first extension portion, located outside the resonance region, the first lift portion protruding relative to the first extension portion. The second passive structure comprises: a second lift portion, located in the resonance region; a second passivation portion, located between the second lift portion and the second electrode layer; and a second extension portion, located outside the resonance region, the second lift portion protruding relative to the second extension portion. Zp and Q value are increased.

The present invention discloses a double veneer panel alignment conveying mechanism, which belongs to the technical field of double veneer panel conveying devices, and includes a workbench, a panel feeder and a press, wherein the panel feeder includes a support plate, and cross beam plates are vertically arranged on both sides of the support plate, and first moving wheels are arranged on the outer sides of both ends of the support plate, and support blocks are arranged on the ends of the two cross beam plates away from the support plate, and second moving wheels are arranged on the outer sides of the ends of the two support blocks, and the inner sides of the two support blocks are respectively hinged with a flip arm, and a first driving member is arranged on the support plate, and the output end of the first driving member is connected to the moving arm and the first driving member drives the moving arm to translate, and a first clamping plate is arranged on the moving arm, and a second driving member is connected to the support block, and the output end of the second driving member is connected to the flip arm and the second driving member drives the flip arm to flip, and a second clamping plate is arranged on the flip arm. The beneficial effect of the present invention is that the waiting time of the panel feeder can be reduced, and the product output can be improved.

The utility model discloses a twistable hydraulic hose connector which comprises a device body, a swivel piece is installed at the upper end of the device body, the swivel piece comprises a rotating sleeve, and the upper end of the rotating sleeve is connected with a connector. And the bent pipe supporting piece is arranged on the outer side of the device body and used for bending supporting, the bent pipe supporting piece comprises a fixing plate, and an upper rotating supporting piece is arranged at one end of the fixing plate. According to the hydraulic hose connector capable of being twisted, the bent pipe supporting piece is arranged at the lower end of the device body, and the effects that engine oil can be conveniently and stably conveyed, a pipeline is prevented from being bent, and the pipeline is supported are achieved.

The utility model discloses a liquid supply assembly, including supply pump and drain valve, and the drain valve includes the valve flow channel, and the radial outside of liquid outlet is equipped with the annular first flat surface, and the radial outside of first liquid inlet is equipped with the annular second flat surface, and the first flat surface and the second flat surface are opposite and are formed to accommodate the sealing groove of annular sealing element, and the first flat surface and the second flat surface are opposite and extrude annular sealing element, the pump liquid outlet channel includes the circular table shape's first expanding diameter portion extending to the second flat surface, and the inner diameter of first expanding diameter portion is gradually expanded diameter setting from the one end away from the first flat surface to the one end close to the first flat surface. First expanding diameter portion is equivalent to a small buffer cavity, improves the stability of liquid, reduces the probability of liquid fluctuation and gas generation, for drain valve, first expanding diameter portion provides a more smooth, smaller disturbance inlet flow field for drain valve, so that liquid can flow into drain valve more evenly, gently.

The utility model discloses a crawler belt walking mechanism based on a rod rope crawler belt. The crawler belt walking mechanism comprises a driving wheel, an inducing wheel and the rod rope crawler belt connected to the driving wheel and the inducing wheel in a bridging mode. The rod-rope crawler belt comprises a plurality of ropes arranged in parallel and connecting assemblies which are evenly arranged in the length direction of the ropes and fix the ropes together. The connecting assembly comprises a rod piece and a pressing strip which are arranged relative to the rope, and the rod piece is fixedly connected with the pressing strip; a plurality of rod grooves meshed with the rod pieces are evenly distributed in the driving wheel and the inducer. The multi-edge effect does not exist, force transmission is stable, and vibration and impact are small; and the rod rope crawler belt is simple in structure, not easy to wear, durable and low in manufacturing and maintenance cost.

The present invention proposes a folding fan type heat radiator for a flat-panel satellite and its assembly and use method, which belongs to the field of thermal control technology of space products. The problem of poor heat dissipation capacity of existing flat-panel satellites is solved. The folding fan type heat radiator includes a radiator unit, a drive motor, a surface mounted heat pipe and a rotating shaft combination. The radiator unit includes a plurality of radiant cooling plates arranged in sequence along the vertical direction, wherein the topmost radiant cooling plate is the first radiant cooling plate, the bottommost radiant cooling plate is the third radiant cooling plate, and the rest are the second radiant cooling plates. The rotating shaft combination passes through all the rotating shaft holes and presses the radiator unit tightly. The top drive column is connected to the output end of the drive motor, and the drive motor and the satellite end mounting surface are connected to the satellite side of the flat-panel satellite. The lower surface of the heat dissipation surface of the third radiant cooling plate is provided with a surface mounted heat pipe, which is connected to the buried heat pipe in the satellite cabin of the flat-panel satellite. It is mainly used for heat dissipation of flat-panel satellites.

The invention relates to the technical field of noise detection, and discloses unmanned aerial vehicle mounted environmental noise detection equipment, which comprises an unmanned aerial vehicle main body, a plurality of propellers are arranged on the unmanned aerial vehicle main body, and an air guide arc-shaped cover matched with the propellers for use is arranged at the bottom of the unmanned aerial vehicle main body. A noise detector and a detection microphone are arranged in the air guide arc-shaped cover; a flow guide and noise reduction mechanism used for reducing noise of the detection microphone is arranged in the air guide arc-shaped cover, and the flow guide and noise reduction mechanism comprises a flow guide and noise reduction frame fixedly installed in the air guide arc-shaped cover. By arranging the air guide arc-shaped cover, the flow guide noise reduction frame, the noise detector, the detection microphone, the mounting bracket and the flow guide angle adjusting mechanism, airflow is diffused to the surrounding under the arc-shaped action of the air guide arc-shaped cover, so that the airflow is far away from the detection microphone area, and the noise of the airflow is prevented from interfering the noise detector and affecting the accuracy of a detection result.

The utility model discloses a floating dock which comprises a floating dock body, protection frames are arranged on the two sides of the floating dock body, at least one set of installation frames are arranged at the top ends of the interiors of the protection frames, ventilation cavities are formed in the installation frames, and the bottom ends of the installation frames are communicated with the ventilation cavities and provided with at least one set of telescopic air bags. The top end of the mounting frame is connected with the ventilation cavity and provided with an inflation and deflation structure, a protective net is arranged in the protective frame, a fixing base is movably arranged at the front end of the floating dock body, a mounting base is rotationally mounted on the fixing base, a rotating motor is arranged in cooperation with the mounting base, a fixing frame is arranged on the mounting base in a liftable mode, and a buffer frame is arranged on one side of the rear portion of the fixing frame. According to the floating dock, corrosion to a ship body in the floating dock body caused by sediment generated in the seawater drainage process can be reduced, meanwhile, air floatation of the floating dock body can be flexibly controlled, and meanwhile limiting and buffering of the ship body when the ship body stops on the floating dock body are facilitated.

The utility model relates to the technical field of collecting pipe depressurization, and discloses a depressurization structure of a condenser collecting pipe, which comprises a collecting pipe main body, the outer part of the collecting pipe main body is uniformly connected with shunt pipes, one end of the collecting pipe main body is sleeved with a connecting sleeve, and the connecting sleeve and the collecting pipe main body are mutually welded; and a pressure relief head is mounted at one end of the connecting sleeve. Through cooperation of the spring, the movable sleeve plate, the pressure relief head and the like, high-pressure liquid impact in the collecting pipe body can flow into the pressure relief head through the pressure reduction channel by utilizing the mobility of the pressure reduction piston under high-pressure impact, so that communication is generated between the pressure relief head and the collecting pipe body to balance pressure, and the pressure relief effect is improved. The purpose of depressurizing the interior of the collecting pipe body is achieved, and by means of the effect of the one-way circulation pipe, after the depressurizing piston is reset, liquid temporarily stored in the pressure relief head can flow back into the collecting pipe body again.

An electrochemical device is disclosed, including a housing, an electrode assembly, a first bonding piece, and a second bonding piece. The electrode assembly includes electrode plates and a separator. The electrode plates include a first electrode plate and a second electrode plate. The separator is disposed between the first electrode plate and the second electrode plate. The electrode assembly is of a wound structure and located in the housing. In a winding direction, the electrode assembly includes a first section, a first bend section, a second section, and a second bend section that are connected sequentially. An outermost coil of the first section is the separator. The first bonding piece is configured to bond an outermost coil of the electrode plates in the first section together with the separator located outside the outermost coil of the electrode plates in the first section. A bonding force between the first bonding piece and the outermost coil of the electrode plates in the first section is 3 N / m to 30 N / m. The second bonding piece is configured to bond an outermost coil of the separator in the first section together with the housing. A bonding force between the second bonding piece and the housing is 20 N / m to 150 N / m. This application further provides an electronic device containing the electrochemical device. This application can improve the anti-drop performance and safety of the electrochemical device.

This application provides a novel ship control hull mold casting system, relating to the field of metal casting molds. It includes a gating structure on one side of the cavity and an venting structure on the remaining sides of the cavity. The gating structure is stepped, positioned at the top of the cavity and higher than the cavity itself. The gating structure includes a riser, a main channel, two branch channels, and multiple sub-channels connected sequentially along the pouring direction. The two branch channels extend obliquely to both sides from the ends of the main channel, with their widths gradually decreasing. Each branch channel branches out two spaced sub-channels on its side facing the cavity. The height of the sub-channels gradually decreases, and their width gradually increases at their ends. The height of the sub-channels is lower than the height of the branch channels, and the height of the branch channels is lower than the height of the main channel. The venting structure includes multiple venting slag bags spaced apart and connected to the bottom of the outer side of the cavity. This application effectively solves the technical problems of turbulence and slag inclusions easily generated by traditional flow channels.

The invention discloses electronic equipment, and belongs to the technical field of electronic products. The electronic equipment comprises a frame body, the frame body is provided with a function channel, the function channel comprises a first buffer area section, the first buffer area section comprises a first shunting section and a second shunting section, the first end of the first shunting section and the first end of the second shunting section are communicated and both communicated with the outside, and the second end of the first shunting section is communicated with an inner cavity of the frame body. And the second end of the second shunting section is communicated with the part between the first end and the second end of the first shunting section. And under the condition that the frame body is impacted by external fluid, at least part of the fluid in the second flow dividing section flows back into the first flow dividing section through the second end of the second flow dividing section, so that the fluid in the first flow dividing section is prevented from flowing towards the second end of the first flow dividing section.

The utility model provides a water distribution device applied to a reaction precipitation integrated biological tank, which comprises a water inlet distribution system and a water outlet pipeline system, the water inlet distribution system is positioned on one side of a tank body and consists of a water inlet, a water inlet channel and a distribution weir, and the water outlet pipeline system is positioned behind the weir and consists of a water outlet and a water outlet channel. The water outlet pipeline system comprises a water outlet pipeline, a water outlet hole, a pipeline sleeve and a pipeline support. The water distribution device can solve the problem of non-uniform water distribution of a water distribution system of the reaction and precipitation integrated biological tank, improves the operation efficiency of subsequent reaction and precipitation integrated equipment, and reduces the maintenance amount of the equipment.

The utility model discloses an on-line dispersing device for lithium iron phosphate pulping, and relates to the technical field of lithium iron phosphate pulping, the on-line dispersing device comprises an on-line dispersing machine, the on-line dispersing machine comprises a rack, a barrel, a plurality of feeding pipelines, a plurality of discharging pipelines and a plurality of dispersing discs, the barrel is arranged on the rack, the feeding pipelines are arranged on the top of the barrel, and the discharging pipelines are arranged on the top of the barrel. A discharging pipeline is arranged on the side wall of the barrel, the feeding pipeline is connected with a feeding pipe, one end of the feeding pipe is connected with a raw material measuring bin, a dispersing shaft is arranged in the barrel, the dispersing discs are evenly distributed on the dispersing shaft, a motor is arranged at the top of the barrel, and the top end of the dispersing shaft penetrates out of the barrel and is connected with the driving end of the motor. The dispersion disc in the online dispersion machine is unique in design, the lithium iron phosphate slurry is subjected to multi-dimensional dispersion, compared with a homogenizing pump, the dispersion force is stronger, the action range is wider, a motor does not need to operate at too high power, the production cost is effectively saved, and the energy utilization efficiency is improved.

This application provides a to-be-projected data processing method, an electronic device, and a storage medium, and relates to the field of screen projection technologies. During screen projection, when it is identified that a current scenario is a specific screen projection scenario (for example, a scenario of in-vehicle infotainment screen projection), and a subscribed application corresponding to the specific screen projection scenario is displayed in a foreground of a screen projection destination end, a frame of image in to-be-projected data may be determined. When the frame of image meets a frame discarding condition, the frame of image may be discarded and does not need to be transmitted. Because consecutive repeated frames of data may exist in the to-be-projected data in the specific screen projection scenario, through frame processing in the solution of this application, a repeated frame of image may not need to be transmitted to reduce Wi-Fi link burden generated during screen projection, thereby reducing power consumption.

The utility model relates to the field of cultivation equipment, in particular to rice seed germination cultivation equipment. The technical problems that according to rice seed germination cultivation equipment, due to the fact that cultivation frames are arranged in a stacked mode, watering is not easy to conduct synchronously, seeds are foamed and damaged due to excessive spraying, and the overall cultivation effect is reduced are solved. According to the technical scheme, the rice seed germination cultivation equipment comprises a cultivation box, a sealing door, a temperature control assembly, a water tank and a cultivation box; in the prior art, due to the fact that cultivation frames are arranged in a stacked mode, watering is not easy to conduct synchronously, seeds are foamed and damaged due to excessive spraying, and the overall cultivation effect is reduced, multiple cultivation classification areas can be formed by inserting partition plates into the cultivation box to conduct germination operation, internal temperature control operation can be conducted through a temperature control assembly, and the whole cultivation effect is improved. The main pipe sequentially penetrates through the cultivation boxes to form a center conveying solution, and sequentially passes through the thin flow pipes and the thick flow dividing pipes to form layer-by-layer water flow impact relieving.

Disclosed in the present invention are a pre-coated steel plate for hot forming and a preparation method therefor, and a hot-formed steel member and an application thereof. In the pre-coated steel plate and the preparation method therefor, when the thickness of a pre-coating is 5-19 µm, the corresponding surface roughness of the pre-coating is set, a hot-formed coated steel member can be obtained after hot forming, and the coating on the hot-formed coated steel member has a high surface roughness of Ra≥1.80 µm; the obtained steel member has the advantages of light weight, high surface roughness and good paint adhesion and paint corrosion resistance, and a steel part made of the steel member of the present invention can be applied to a vehicle so as to lighten the weight of the vehicle.