254results about How to "Large coverage area" patented technology

The invention discloses a laser processing device, a silicon carbide crystal ingot cutting method and a laser processing system. The laser processing device comprises a laser used for emitting a laser beam with preset laser parameters; the beam splitting element is used for splitting the laser beam into a plurality of sub-beams arranged along a preset direction; the spherical aberration compensation element is used for performing spherical aberration compensation on the plurality of sub-beams and outputting a plurality of spherical aberration compensation beams; and the scanning mechanism is used for focusing the plurality of spherical aberration compensation light beams and cutting the silicon carbide crystal ingot according to a preset cutting path and a preset cutting speed by utilizing the plurality of focused spherical aberration compensation light beams. Spherical aberration compensation is carried out on the sub-beams, the spot size of the focused sub-beams in the silicon carbide crystal ingot in the optical axis direction can be remarkably reduced, the length of a growth area of microcracks is reduced, and then a high-quality silicon carbide wafer is obtained. In addition, the coverage area of the plurality of sub-beams on the surface of the silicon carbide crystal ingot is larger, so that the cutting efficiency is improved.

The invention discloses a sand source resistance and control dynamic configuration method for a hole-to-wind sand area, and relates to the technical field of wind and sand protection, and the method comprises the following steps: collecting meteorological data, wind and sand data and historical sand source change data of the hole-to-wind sand area, and obtaining geographic information and vegetation coverage conditions of the sand source area through a remote sensing technology and ground monitoring equipment; by monitoring key parameters such as wind speed, wind direction and dust concentration in real time and combining high-resolution ground image data acquired by an unmanned aerial vehicle and a satellite remote sensing technology, real-time sensing and accurate analysis of sand source changes are realized, the efficiency and accuracy of data collection are improved, and the detection accuracy is improved. In addition, the prevention and control measures can be dynamically and accurately arranged according to the specific sand source, and by dynamically adjusting the arrangement and density of prevention and control facilities and optimizing the type and area of vegetation coverage, sand storm invasion can be more effectively prevented, the occurrence frequency and intensity of sand storm are reduced, and the efficiency and accuracy of sand source prevention and control are remarkably improved.

The invention relates to the technical field of ablation, in particular to a flexible electrode pulse ablation catheter, a pulse ablation device and ablation equipment.The ablation catheter comprises a catheter body with a far end and a near end which are oppositely arranged, and the catheter body comprises a traction structure and a conveying pipe assembly arranged on the traction structure in a sleeving mode; the electrode assembly comprises at least one connecting pipe and at least two electrodes, every two adjacent electrodes are fixedly connected through the corresponding connecting pipe, and each electrode is of a tubular structure internally provided with a cavity; one end of the traction structure penetrates through the conveying pipe assembly, then extends into the electrode assembly and is fixedly connected with one end of an electrode arranged close to the far end of the pipe body. Under the action of external force, the traction structure can drive the two opposite ends of the same electrode to move oppositely or move away from the tubular structure until the tubular structure shrinks or expands. The flexible degree of the electrode assembly can be improved, the electrode with a larger area can be attached to the focus, conveying and ablation at the large-angle position of the periphery of the focus are achieved, the ablation effect is guaranteed, and the ablation success rate is increased.

The utility model relates to the technical field of ice making equipment, in particular to a high-quality ice making mold. A first elastic cushion is embedded on the inner side wall of a first mold cavity of a first mold; and a closed ice making cavity is formed by a second mold cavity on the second mold and the first mold cavity. And a second elastic cushion is arranged in each of the two second mold cavities. And the third mold cavity of the third mold and the other second mold cavity are enclosed to form a closed ice-making cavity. And a third elastic cushion is embedded in the inner side wall of the third mold cavity. The elastic deformation factor of the elastic cushion can be used for releasing stress generated by volume increase when water is frozen, and the quality of the made ice blocks is higher. The first elastic cushion, the second elastic cushion and the third elastic cushion are not fully paved in the ice-making cavity, and the evaporation pipe is wound on the peripheral side of the ice-making cavity, so that the cold transfer efficiency of a refrigerant is higher, the coverage area is more uniform, and the ice-making efficiency is remarkably improved. The water inlet and outlet device can bring out gas in the water body, so that the made ice block is more transparent.

The invention relates to a gallium nitride transistor based on a polycrystalline silicon field plate and a preparation method thereof, and belongs to the technical field of semiconductor devices. The transistor comprises a substrate, a GaN buffer layer, a GaN channel layer, an AlN insertion layer and an AlGaN barrier layer which are sequentially arranged from bottom to top, a P-GaN cap layer and a first passivation layer are arranged on the upper side of the AlGaN barrier layer, a gate metal field plate is arranged on the upper side of the P-GaN cap layer, a second passivation layer is arranged on the upper sides of the gate metal field plate and the first passivation layer, and the second passivation layer is arranged on the upper side of the second passivation layer. Two sides of the GaN buffer layer are respectively provided with source electrode metal and drain electrode metal, the first passivation layer and the second passivation layer are provided with grooves, the bottoms of the grooves penetrate through the AlGaN barrier layer, and polycrystalline silicon field plates are arranged on the upper side of the source electrode metal, the upper side of the second passivation layer and in the grooves. By introducing the polycrystalline silicon field plate, interface charges are inhibited, and the electrical performance of the device is remarkably improved.

The invention discloses a slope landslide and bridge collapse disaster monitoring and early warning device, and belongs to the technical field of geological monitoring. The method comprises the following steps: under the condition of carrying out monitoring and early warning on a slope landslide disaster, a sensing line is arranged on a slope through longitude lines or latitude lines; under the condition that monitoring and early warning are carried out on bridge collapse disasters, the sensing lines are arranged around each beam piece and intersect with the beam pieces. Under the condition that the slope does not slide or the bridge does not collapse, the voltage between the first wiring terminal and the second wiring terminal is in a first state; under the condition that the slope slides or the bridge collapses, the sensing circuit breaks, and the voltage detection circuit determines that the voltage between the first wiring terminal and the second wiring terminal is in a second state; and determining the voltage between the first terminal and the second terminal as a third state through the voltage detection circuit under the condition of sensing that the circuit is short-circuited. According to the method, early warning can be carried out on the condition that the broken line may be short-circuited at the water accumulation position, and the reliability is high.

The invention provides a high-capacity generator circuit breaker heat dissipation structure based on liquid metal heat dissipation and a working method, and the structure comprises a vacuum arc-extinguishing chamber heat dissipation device, a liquid metal diversion pipeline, and a liquid metal cooling circulation system. The vacuum arc-extinguishing chamber heat dissipation devices are arranged on the two sides of the vacuum arc-extinguishing chamber; the end part of the liquid metal flow guide pipeline is communicated with a liquid metal cooling circulation system; the vacuum arc-extinguishing chamber heat dissipation device is internally provided with heat dissipation fins; and the liquid metal flow guide pipeline is embedded in the radiating fins. The overall heat dissipation capability of the circuit breaker is improved by introducing the liquid metal, the heat dissipation structure of the vacuum arc-extinguishing chamber timely exports heat generated by the vacuum arc-extinguishing chamber, the heat is finally exported to the outside of the circuit breaker through circular flow of the liquid metal, the steady-state temperature rise during operation of the circuit breaker can be effectively reduced, and the service life of the circuit breaker is prolonged. The method is of great significance in improving the capacity of the generator circuit breaker and ensuring safe and reliable operation of the circuit breaker.

The invention relates to a constant-temperature type ultra-clean bubbler and a control method thereof, and relates to the technical field of mixing equipment, the bubbler comprises a bubbling tank, the open end of the bubbling tank is connected with a sealing cover, the sealing cover is provided with a liquid inlet pipe, an air inlet pipe and a discharging pipe, the liquid inlet pipe and the air inlet pipe both extend into the bubbling tank, and the discharging pipe is connected with the bubbling tank. The liquid inlet pipe, the air inlet pipe and the discharging pipe are all communicated with the bubbling tank; one end of the air inlet pipe is communicated with a bubble generator; a heat preservation mechanism is arranged on the outer side of the bubbling tank and comprises a heat preservation tank, the bubbling tank is sleeved with the heat preservation tank, and a sealing cover is arranged at the opening end of the heat preservation tank and seals the opening end of the heat preservation tank; a heat preservation interlayer is formed between the inner wall of the heat preservation tank and the outer wall of the bubbling tank, and a first pipe and a second pipe are arranged on the sealing cover and both communicated with the heat preservation interlayer. The heat preservation mechanism is arranged on the outer side of the bubbling tank and is difficult to damage, the heat preservation effect of the heat preservation interlayer on the raw material liquid can be guaranteed, and then the efficiency of taking away the raw material liquid by gas is improved.

The breaking hammer with the intelligent dust suppression system comprises a breaking hammer body, the breaking hammer body comprises a shell, a top plate is arranged at the top of the shell, a top dust removal device is arranged at the top of the top plate, a connecting support is arranged at the top of the top dust removal device, and the connecting support is used for being connected with a connecting system of an excavator or a loader; a bottom dust removal device is arranged at the bottom of the shell, a core body is arranged in the shell, the lower end of the core body is connected with a drill rod, and the drill rod penetrates out of the bottom dust removal device; the top dust removal device is connected with an external water pipe, the external water pipe is connected with a water supply system of the excavator or the loader, and a conveying water pipe is connected between the top dust removal device and the bottom dust removal device. The breaking hammer foot valve is connected with the electromagnetic valve in an output signal mode, when the foot valve is treaded, namely the breaking hammer is started to work, the electromagnetic valve receives a pressure signal and an output port is reversed at the moment, and liquid is conveyed to the breaking hammer dust removal device through the water pipe and sprayed through a nozzle arranged on the dust removal device at the moment.

The utility model relates to an oil coating device, belongs to the technical field of pressed salted duck production, and particularly relates to an oil coating device for duck meat product production, which comprises a processing box, a driving motor is fixedly connected to the upper surface of the processing box, a fixed disc is fixedly connected to the inner top wall of the processing box, a suspension assembly is arranged in the fixed disc, and the suspension assembly is fixedly connected to the upper surface of the processing box. The suspension assembly is connected with the driving motor, a connecting plate is slidably connected to the inner wall of the treatment box, an oil spraying nozzle and an oil coating brush are arranged on the connecting plate, a circulating assembly is arranged on the treatment box, and the connecting plate is connected with the circulating assembly; according to the device, pressed salted ducks can make more sufficient contact with sprayed oil, the more uniform and better oil coating effect can be achieved, and the problems that an existing oil coating device is uneven in oil coating and poor in oil coating effect are solved.

The utility model provides a foldable multi-section type dust suppression spray rod which comprises at least three sections of supports connected end to end and angle adjusting joints connected with the adjacent supports. The angle adjusting joint comprises a U-shaped base, a connecting block, a servo gear motor and an electric push rod, wherein the servo gear motor and the electric push rod are connected with the two side walls of the U-shaped base respectively. An output shaft of the servo gear motor is connected with the connecting block, the output end of the electric push rod is connected with a plug pin, and a plurality of inserting holes are formed in one side of the connecting block. A cavity is formed in the side wall of the U-shaped base, and the plug pin penetrates through the cavity and selectively extends into one of the inserting holes. According to the arrangement, when the multi-section support needs to be folded / unfolded, the servo gear motor drives the connecting block to rotate to a target angle, the plug pin is inserted into the corresponding inserting hole through the electric push rod, and angle fixation between the U-shaped base and the connecting block is achieved. According to the multi-section support, multi-angle staying can be achieved, storage is convenient, meanwhile, after the multi-section support is unfolded, the covering area is wider, and dust suppression operation of a larger area can be achieved.

The invention relates to an underground coal mine gas circulation pumping drainage device, and belongs to the field of coal mine gas drainage. The device comprises a fan module, a motor driving module, a belt transmission module, a guide moving module, a gas collection tank module and an installation adjusting module. The fan module is fixedly installed on one side of the box body, and the motor driving module is fixedly installed on the box body and comprises a motor and a rotating rod connected to the corresponding position of the motor; the belt transmission module is fixedly connected to the rotating rod and comprises a driving belt wheel and a transmission belt. The guide moving module is fixedly connected into the box body; the gas collection box module is fixedly connected to the bottom end in the box body and comprises a gas collection box and a round pipe; the installation adjusting module is fixedly connected to the side wall of the box body. By optimizing the design of the spraying system, the two atomizing nozzles can reciprocate up and down and left and right during spraying, and the contact area and the contact uniformity of water mist and gas are improved, so that the filtering quality and the filtering efficiency of the gas are remarkably improved.

The invention discloses a centrifugal machine for producing cast steel shots.The centrifugal machine comprises a motor, the motor is fixedly connected to the outer wall of the top of a transverse plate, the transverse plate is arranged at the top of a water pool, the output end of the motor is fixedly connected with a rotating rod, the outer wall of the circumference of the rotating rod is fixedly connected with two sets of driving gears, and the two sets of driving gears are arranged in parallel. And a centrifugal brick cylinder is arranged below the transverse plate. According to the invention, when the centrifugal machine is started to work, the baffle plate located in the centrifugal brick cylinder can be driven to perform intermittent circular motion, so that intermittent blocking of part of centrifugal holes can be realized, and the spraying mode of the centrifugal machine is changed from continuous spraying to interval spraying; the device effectively avoids the situation that multiple steel shots are connected and specially shaped due to the fact that the continuous spraying speed is too high, improves the quality of the produced steel shots, also plays a role in reducing the temperature of cooling water in the water pool, and avoids the situation that the local temperature of the cooling water in the water pool is too high due to continuous spraying of molten steel.

The invention provides a pesticide spraying unmanned aerial vehicle, and particularly relates to the technical field of unmanned aerial vehicles, the pesticide spraying unmanned aerial vehicle comprises an unmanned aerial vehicle main body, the bottom of the unmanned aerial vehicle main body is fixedly connected with a bottom plate, the bottom of the bottom plate is detachably connected with a pesticide liquid box, and the bottoms of the ends, away from the unmanned aerial vehicle main body, of two side plates are fixedly provided with electric telescopic rods; the telescopic end of the electric telescopic rod moves downwards to reduce the spraying height of the fan-shaped spray head, so that the overall flight height of the aircraft does not need to be adjusted in actual spraying operation, and the flight stability is prevented from being influenced by adjustment of the flight height of the aircraft; in this way, the spraying height of the four fan-shaped sprayers arranged under the four driving motors is flexibly reduced, downward-pressing airflow generated when the flying wings rotate is better utilized, the downward-pressing airflow is used for pushing liquid medicine to the surfaces of plants, the penetrating power of the liquid medicine to crops is enhanced, the deposition effect of the liquid medicine is improved, and the spraying efficiency is improved. Therefore, the spraying effect of unmanned flying pesticide spraying is improved.

The invention relates to the technical field of curtain wall plates, and discloses an assembled sound insulation curtain wall plate which comprises a curtain wall plate frame, a waterproof sealing strip is fixedly connected to one side of the curtain wall plate frame, a compression cavity is formed in the inner side of the waterproof sealing strip, the curtain wall plate frame is provided with a detachable heat preservation and sound insulation assembly, and the detachable heat preservation and sound insulation assembly is arranged on one side of the curtain wall plate frame. Comprising a sound insulation plate and a heat preservation filling layer located between the sound insulation plate and a curtain wall plate frame, and the sound insulation plate and the heat preservation filling layer jointly act to provide sound insulation and heat preservation performance; each fixing assembly is arranged between every two adjacent curtain wall plate frames and comprises a fixing frame, a clamping block, a clamping groove and a clamping base, and the curtain wall plate frames are firmly connected and the whole curtain wall plate is stably fixed to the wall through cooperation of the clamping blocks and the clamping grooves and connection of the fixing frames and the clamping bases; by arranging the fixing assembly, the curtain wall plate can be disassembled by separating the clamping rod from the clamping seat during disassembly, so that the curtain wall plate is convenient to mount and disassemble, and later maintenance is facilitated.

The utility model relates to the technical field of waste gas treatment equipment, and discloses a waste gas treatment and purification device for graphite carburant production, which comprises a purification box, one side of the purification box is fixedly connected with a breather pipe, one end of the breather pipe is fixedly connected with an air exhaust sleeve, and the other side of the purification box is fixedly connected with a sleeve shell. An exhaust pipe is fixedly connected to the top of the purification box, a filter box is slidably connected to the position, outside the exhaust pipe, in the purification box, a supporting block is fixedly connected to the side, away from the exhaust sleeve, of the purification box, a water tank is fixedly connected to the top of the supporting block, and a water pump is fixedly connected to the top of the water tank; the input end of the water pump is fixedly connected with a water pumping pipe. According to the utility model, under the mutual cooperation of the motor, the rotating rod, the bevel gear, the half bevel gear I and other structures, the nozzle is driven to spray water when swinging, so that the coverage area of water spraying is increased, and waste gas is more fully purified.

The invention discloses a bridge bottom surface crack detection device, and relates to the technical field of bridge detection, the bridge bottom surface crack detection device comprises a walking detection mechanism and a plurality of steel cable guide rail mechanisms, the steel cable guide rail mechanisms are arranged in the width direction of a bridge, and each steel cable guide rail mechanism comprises a steel cable frame, a steel cable and a fixing plate; the wire rope is wound on the wire spool, one end of the wire rope is fixedly connected with the fixing plate, the wire rope is wound through the wire spool and used for being in a tightened state, the walking detection mechanism comprises a walking base, a detection bottom plate and two imaging detection assemblies, the walking base is used for walking on the wire rope, and the bottom of the detection bottom plate is connected to the top of the walking base through a stand column; the imaging detection assembly comprises a detection box and an industrial camera, the detection box is slidably arranged on the top face of the detection bottom plate, a hollow detection pipe is fixed to the top of the detection box, the industrial camera is installed in the detection box, crack detection of the bottom face of the bridge is achieved, manual participation is not needed in the detection process, and detection data are more accurate.

The utility model relates to the field of precision casting detection, in particular to a precision casting detection device with a direction adjusting function, which comprises a side plate, a material distributing assembly is arranged at the top of the side plate and comprises a material distributing plate housing fixedly connected to the top of the side plate, and a material distributing plate groove is formed in the material distributing plate housing. An electric telescopic rod is fixedly connected into the material distributing plate groove, a first material distributing plate is fixedly connected to the bottom end of the electric telescopic rod, and two damping springs which are arranged in a spaced mode are fixedly connected to the top of the first material distributing plate. When the precision casting is detected to be qualified, the electric telescopic rod can drive the first material distributing plate to move downwards to be attached to the conveying belt, the qualified precision casting moves to the position of the first discharging port along with the arc-shaped first material distributing plate and is discharged through the first discharging port, the length of the first material distributing plate is consistent with the length of the conveying belt, the covering area is large, and the stroke is short; and the problem that qualified precision castings are not pushed away can be prevented.

The application belongs to the technical field of waste treatment in deep mine, and particularly relates to a solid-liquid mixture cleaning device in deep mine, which comprises a pushing mechanism, an extracting mechanism, a recycling mechanism and a supporting mechanism. The pushing mechanism is located at the top of the supporting mechanism, one end of the pushing mechanism is fixed to the top surface of the supporting mechanism, and the other end hoists the extracting mechanism. The extracting mechanism can move along the horizontal direction of the pushing mechanism under the driving of the pushing mechanism, the bottom of the extracting mechanism is provided with the recycling mechanism, and the recycling mechanism can move along the vertical direction of the extracting mechanism under the driving of the extracting mechanism. The recycling assembly of the recycling mechanism can surround the solid-liquid mixture, and the heating assembly can heat the ground to separate the frozen liquid waste from the ground. The freezing assembly of the supporting mechanism can freeze the liquid waste in the recycling assembly into solid state. The application can not only recycle solid waste, but also recycle the frozen liquid waste, and has high working efficiency and can adapt to more cleaning working conditions under different waste states.

The utility model relates to a combined splash-proof device of a high-level water-collecting mechanical draft cooling tower, which comprises a water-collecting tank and a water-collecting inclined plate, the water-collecting inclined plate is obliquely arranged, the water-collecting tank is arranged below the lower end of the water-collecting inclined plate, the included angle between the water-collecting inclined plate and the horizontal plane is 45-55 degrees, a splash-proof filler is further arranged on the water-collecting inclined plate, and the splash-proof filler is arranged on the lower end of the water-collecting inclined plate. The splash-proof filler is obliquely and upwards placed on the upper surface of the water collecting inclined plate from the lower end of the water collecting inclined plate, one end of the splash-proof filler is aligned to the lower end of the water collecting inclined plate, and the length H2 of the splash-proof filler is two thirds of the length H1 of the water collecting inclined plate in the inclination direction from the lower end to the high end of the water collecting inclined plate. The utility model mainly aims to provide the combined type splash-proof device of the high-level water collecting mechanical ventilation cooling tower, which has the functions of silencing and reducing noise, and is remarkable in splash-proof effect and good in economical efficiency.

The utility model relates to the related technical field of garden irrigation, in particular to a multi-angle control injector head and an injector device, which comprise a base and a driving disc rotatably mounted on the base, bearing frames are symmetrically arranged on the driving disc, and nozzles are rotatably mounted on the bearing frames; the water pumping mechanism is mounted on the base, and the water pumping mechanism is communicated with the inner side of the spray head; the reciprocating pushing piece is mounted on the bearing frame; the water pumping mechanism is controlled to work so that the driving disc can rotate relative to the base, the spray head can do circular motion, meanwhile, the driving disc drives the reciprocating pushing piece to work in the rotating process so as to control the elastic structure to extrude the spray head to deflect in a reciprocating mode, and therefore the water pumping mechanism can drive the spray head to rotate in the reciprocating mode. Therefore, the spray head deflects in a reciprocating mode while doing circular motion, and the coverage area of spraying on garden plants is increased.

The utility model belongs to the technical field of cooling towers, and particularly relates to a cooling tower splash-proof filler which comprises a fixed box and a filler body arranged in the fixed box, and further comprises a flow guide cover fixed at the top end of the fixed box and a flow guide plate arranged in the flow guide cover by utilizing a buffer assembly, a plurality of flow guide holes which are distributed at equal intervals are formed in the flow guide plate, and the buffer assembly comprises a fixing frame which is fixed in the flow guide cover; the guide column penetrates through the fixing frame, and the flow guide plate is fixed to the top end of the guide column; the telescopic spring is arranged on the guide column in a sleeving manner and is positioned between the flow guide plate and the fixed frame; through the design of the buffer assembly and the guide plate, the water flow impact speed is reduced, splashing caused by vertical impact is reduced, the water distribution plate is matched to uniformly distribute water, the water film coverage area is increased, water drops are prevented from quickly passing through the filler, and the heat exchange efficiency is improved.

The utility model discloses a guniting device for a PCCP (prestressed concrete cylinder pipe) production process, and relates to the technical field of guniting devices for the PCCP production process. The nozzle comprises a nozzle body, a nozzle groove penetrating through the bottom is formed in an inner cavity of the nozzle body, and a material conveying hose is connected to the top of the nozzle body. The fixing bolt penetrates through the bearing and the inner cavity of the first hole groove front and back to enable the nozzle to be connected with the fixing frame, the telescopic base is installed in the inner cavity of the telescopic base fixing block, the fastening nut is rotated to be aligned with the hole groove of the fixing base to enable the telescopic base to be fixed, and the nut is installed in the inner cavity of the connecting block and the inner cavity of the second hole groove. Then the nut is installed at the front end of the nut, the telescopic rod stretches out and draws back to adjust the angle of the nozzle, the nozzle 1 can achieve adjustment of various angles so as to meet different construction requirements, meanwhile, due to the design of the double nozzles, a larger coverage area can be formed, spraying dead angles are reduced, it is ensured that the slope protection face is evenly stressed, and spraying compactness is improved.

A reheating device includes a housing, a cylinder, and a steam module. A cover plate is installed in the connecting cylinder, and the cover plate is equipped with a safety valve, an exhaust port, a pressure sensor, and an inlet pipe. The exhaust pipe is fixed to the connecting cylinder and passes sequentially through the bottom surface of the connecting cylinder and the exhaust port. Four steam conduits are connected to the bottom surface of the connecting cylinder. The diameter of the inlet pipe is larger than the diameter of the exhaust pipe. A cap for the inlet pipe is detachably installed on the inner wall of the top cover. After removing the top cover, external steam is introduced into the cylinder through the inlet pipe and steam conduits. When the steam pressure in the cylinder exceeds the set pressure of the safety valve, the safety valve opens to discharge the steam from the cylinder.

The invention provides a carbon crystal heating plate with an excellent heat transfer characteristic and a preparation method thereof, and relates to the technical field of environment-friendly furniture, the carbon crystal heating plate comprises a carbon crystal plate and heat preservation cotton bonded on the carbon crystal plate, a heating pipe is arranged between the carbon crystal plate and the heat preservation cotton, and heat-assisting binders are filled between the carbon crystal plate and the heating pipe and between the carbon crystal plate and the heat preservation cotton. The heating pipe is arranged between the carbon crystal plate and the heat preservation cotton to play a role in heating, and the heat-assisting binder with high strength and heat transfer performance is filled, so that the carbon crystal plate has the characteristics of heating and cooling, the heat transfer performance and strength are improved, and the service life of the carbon crystal plate is prolonged. The characteristics that the carbon crystal heating plate is large in coverage area and good in decoration effect in indoor decoration are fully played, meanwhile, the function of supplying heat and cold to a decoration space is taken into consideration, radiation heat transfer and heating of the carbon crystal heating plate are even, defrosting is fast, the human settlement environment is comfortable, and operation is energy-saving due to the fact that the heat-assisting binder is added. The aluminum honeycomb core plate is formaldehyde-free, flame-retardant, energy-saving and environment-friendly, and meets the environmental protection requirement.

This application provides a speaker enclosure, relating to the field of electroacoustic technology. The speaker enclosure provided by this application includes: a cabinet; a loudspeaker disposed within the cabinet enclosure and including a diaphragm; a support plate covering the first end of the cabinet enclosure, the support plate having multiple rear cavity sound outlet holes; a waterproof layer disposed on the side of the support plate facing the interior of the cabinet enclosure; a partition plate disposed within the cabinet enclosure, forming a buffer cavity between the inner wall of the cabinet enclosure, the waterproof layer, and the partition plate; and a bass enhancement structure disposed within the cabinet enclosure, including an acoustic channel, forming a rear cavity of the speaker enclosure between the partition plate, the inner wall of the cabinet enclosure, and the back surface of the diaphragm, the acoustic channel connecting the buffer cavity and the rear cavity. This application provides a speaker enclosure that combines bass enhancement and waterproofing.

The invention discloses an automatic circuit board welding device which comprises an equipment body, a base, a welding machine located above the base and capable of transversely moving and a welding rod located on the welding machine are arranged on the equipment body, a lifting rod is arranged at the bottom of the welding machine, and the action end of the lifting rod is connected with a vertical rod through a circumferential shaking device. One side of the vertical rod is rotatably connected with a swing rod, one side of the swing rod is provided with a welding rod, the welding rod is rotatably and slidably connected with the vertical rod, and the vertical rod is provided with a first control combination used for controlling the swing rod to swing. According to the device, the circumference shaker is arranged between the lifting rod and the vertical rod, when the welding spot coverage area needs to be increased, the welding rod can be controlled to conduct small-radius circle drawing action in situ by starting the circumference shaker, and at the moment, a welding head at the bottom of the welding rod can guide a solution to increase the welding spot area; according to the arrangement, the welding spot can be expanded without frequently controlling the movement of the welding machine, so that the welding spot expanding device has the advantage of higher welding spot expanding efficiency.

The invention discloses a cold-proof quilt capable of being folded into a square throw pillow, and relates to the technical field of square throw quilts.The cold-proof quilt comprises a quilt body, small square quilts, an opening, a long quilt, a large zipper, a small zipper and the like, the small square quilts are sewn on the two sides of the top of the quilt body, the opening is formed in the upper portion of the front face of the quilt body, and the large zipper is sewn in the middle of the quilt body. The quilt is a square throw pillow when being folded, is suitable for supporting the body by supporting the waist or resting the head in noon break, is a cold-proof quilt when being unfolded, is provided with three communicated bag-shaped structures, can better keep the hands and the feet warm and is prevented from kicking the quilt, the hands can extend out of the opening in winter, and reading of a book and a mobile phone is facilitated.

The utility model discloses a folding type smoke guide cover structure of smoke guide vehicle, including side plate, the one side of side plate is provided with the cover body, the inside top wall of cover body is provided with the turnover mechanism, the one side of cover body is fixedly connected with telescopic mechanism, the one side bottom of side plate is embedded and is connected with annular groove. The turnover mechanism that can make equipment can flexibly fold and unfold smoke guide cover through setting, thereby simplifies operation process, when needing to use, can drive folding board to rotate around connecting point, makes folding board from retracting state to work state, effectively enlarged the coverage area of smoke guide cover, through setting telescopic mechanism can make equipment can adjust the coverage area of smoke guide cover according to the actual need of the scene, can drive extension plate to slide in displacement groove in the smoke operation process, through the position of adjusting bolt in through -hole and adjusting hole, realizes the fixed position of extension plate, thereby flexibly adjusts the opening size of smoke guide cover.

This invention discloses a battery box housing, a power battery system, and an electric vehicle with an integrated liquid cooling system, relating to the field of new energy electric vehicle technology. The system includes a liquid cooling plate, one end of which is connected to the front beam and the other end to the rear beam. The liquid cooling plate is divided into an inlet water area and a return water area, which form a liquid cooling circuit through liquid cooling manifolds within the front and rear beams. Side beams are installed on both sides of the liquid cooling plate, and a base plate is fixed to the bottom of the liquid cooling plate. This invention forms a liquid cooling circuit with the front and rear beams through the liquid cooling plate, eliminating the need for pipes and joints and reducing the risk of leakage. Furthermore, the liquid cooling plate has a continuous cooling liquid flow channel, eliminating the need for re-molding for different batteries and making it suitable for electric vehicles of different capacities.