106results about How to "Affect damage" patented technology

The invention relates to an automatic CPU alignment assembling machine. The automatic CPU alignment assembling machine comprises a bottom plate. The bottom plate is provided with a rotating mechanism used for facilitating manual feeding and discharging. A rotary disc of the rotating mechanism is provided with a carrier mechanism used for positioning a product. The product is positioned on the carrier mechanism. A CPU is placed in the product. A pressing plate is placed on the CPU. A plurality of sets of screw positioning modules are arranged on the pressing plate and correspond to to-be-locked positions of the product. The bottom plate is provided with a downward pressing mechanism used for downwards pressing the pressing plate. A locking mechanism used for locking the CPU to the product through screws is arranged on the bottom plate. The CPU is locked on a cylinder computer case through the screws, automatic alignment and centering of the left side and the right side of the CPU can be achieved, and accurate screw locking is achieved.

The invention discloses a high-pressure water jet edge cutter which comprises an edge cutter mechanical structure, an edge cutter high-pressure water jet pipeline and an edge cutter high-pressure water jet nozzle. The edge cutter high-pressure water jet pipeline is located in the edge cutter mechanical structure. The edge cutter high-pressure water jet nozzle is embedded in the edge cutter mechanical structure and communicates with the edge cutter high-pressure water jet pipeline. The high-pressure water jet edge cutter has the advantages of realizing rock breaking through high-pressure waterjet and solving the problem that a TBM gets stuck. The invention further discloses a hydraulic-mechanical combined rock breaking and escaping TBM cutterhead. The invention further discloses a hydraulic-mechanical combined rock breaking and escaping method.

The invention discloses an electric leakage induction and protection control system on an electric water heater. The electric leakage induction and protection control system on the electric water heater comprises a control module; a water tank filled with water is provided with an electric heating device; a power supply switch is arranged between the electric heating device and a power supply; the water outlet end of the water tank is connected with an electric insulation water tube; and the electric insulation water tube is also provided with a center-penetrating type current mutual inductor detection module and an effluent control valve. The electric leakage induction and protection control system aims to detect the magnitude of leakage current by the center-penetrating type current mutual inductor detection module; when the control module judges that the leakage current exceeds a preset value to cause harm to a user, the power supply switch is controlled to be cut off; after the power supply switch is cut off, the effluent control valve is controlled to cut off the effluent when the electric leakage current is detected to still exceed the preset value so as to prevent the electric leakage current from contacting with a user via water flow; in addition, because the electric insulation water tube is arranged between the water tank and the water outlet end, the leakage current can be prevented from contacting with the user via equipment so as to guarantee the safety of the user.

The invention relates to a mounting and clamping device and method applicable to bent pipe welding and belongs to the technical field of bent pipe welding assembling. The mounting and clamping universal device provided by the invention has five degrees of freedom and can be conveniently and flexibly adjusted. The requirements for welding, mounting and clamping of a bent pipe can be met just by adjusting the axis of a welding position of the bent pipe to coincide with the rotation axis of a rotary disk of the device. Thus, the mounting and clamping device has no limitations to the bending angle and the spatial location of the guide pipe and is high in adaptability. The bent pipe mounting and clamping universal device is simple in structure, convenient to machine, low in manufacturing cost and beneficial to application and popularization in the practical production process.

The invention relates to a start control method and system for a variable-frequency air conditioner and the air conditioner. The start control method for the variable-frequency air conditioner comprises the following steps that a target frequency Fd, a first frequency Fa and a second frequency Fb are set; a variable-frequency compressor is controlled to operate at the frequency Fa till a pressure difference is established, and a four-way valve of the variable-frequency air conditioner reverses; the frequency of the variable-frequency compressor is controlled to drop to the frequency Fb from the frequency Fa, the variable-frequency compressor operates at the frequency Fb for the time T1, and pressure buffering and preheating are conducted on the variable-frequency air conditioner; the target frequency Fd is compared with the frequency Fb, and the frequency of the variable-frequency compressor is controlled to directly drop to the target frequency Fd if the target frequency Fd is smaller than the frequency Fb; the second frequency Fb of the variable-frequency compressor is controlled to be stabilized at the target frequency Fb after frequency rising and frequency dropping are conducted multiple times if the target frequency Fd is larger than the frequency Fb. According to the start control method and system for the variable-frequency air conditioner and the air conditioner, frequency rising of an air-conditioning system can be achieved, and the situations that safe operation of the compressor is affected due to the fact that oil is excessively discharged during frequency rising of the compressor and other components of the system are damaged due to the fact that the pressure difference changes too rapidly are avoided.

The invention discloses a steam washing machine. The steam washing machine comprises an outer cylinder, an inner cylinder contained in the outer cylinder, a water inlet valve, a heater and a control circuit. The heater is located at the bottom of the outer cylinder and between the inner cylinder and the outer cylinder, and a temperature detector is arranged at the bottom of the outer cylinder; a water level sensor is arranged on the inner wall of the outer cylinder; the heater is used for heating water to generate steam; the control circuit is used for controlling the heater to work to control the steam amount. Water inflows from the water inlet, the water inlet valve is turned off when the water level threshold is reached, and the heater starts to heat the water to generate the steam; when the water temperature is increased to a first water temperature threshold, the heater stops heating; the inner cylinder starts to rotate to conduct steam washing on clothes; when the water temperature is reduced to a second water temperature threshold, the inner cylinder stops rotating, and the steam washing procedure is completed; a lot of water inflows from the water inlet valve for later washing. The washing machine is simple in structure and easy to use, and the cost of the steam washing machine is reduced on the premise that the washing effect is not affected.

The invention relates to an automatic feed device, a feed method and a feed pipe. The automatic feeding device comprises the feed pipe (1), a hopper (2), a helix packing auger (3), a motor (4), a water delivering pipeline (5) and a control unit (7); the automatic feeding device is characterized in that the water delivering pipeline (5) comprises a moving water delivering pipeline body (51), a stationary water delivering pipeline body (52) and a water outlet (33), and the moving water delivering pipeline body (51) is located in a packing auger rotating shaft (31) of the helix packing auger (3); the water outlet (33) is formed in the helix packing auger (3); the moving water delivering pipeline body (51) is connected with the stationary water delivering pipeline body (52) through a water supply rotating joint (8), and the water supply rotating joint (8) serves for connecting the moving water delivering pipeline body (51) with the stationary water delivering pipeline body (52).

The invention relates to an automatic feeder and a feeding pipe used in the automatic feeder. Feed is exported out when a pig bites a biting block (12) on the feeding pipe (1), and a pressure sensor (14) will be triggered when the biting block (12) is bitten; a hopper (2) is used for filling of the dry feed; one end of a spiral packing auger (3) is connected with a motor (4), the other end of the spiral packing auger (3) is located in the feeding pipe (1), and the spiral packing auger (3) is used for conveying the dry feed in the hopper (2) to the feeding pipe (1); the motor (4) provides power for rotation of the spiral packing auger (3); a water feeding pipe (5) provides water for the dry feed in the feeding pipe (1) so as to conduct feed mixing; after a control unit (7) receives a trigger signal of the pressure sensor (14), the motor (4) and the water feeding pipe (5) are started at the same time; when the control unit (7) does not receive the trigger signal of the pressure sensor (14), the motor (4) and the water feeding pipe (5) are switched off.

The invention discloses a polishing grinding machine for an LED ceramic bracket. The polishing grinding machine comprises a rack, a workpiece conveying device, a polishing grinding device and a PLC controller. The workpiece conveying device comprises a conveying belt, a conveying roll shaft and a motor. A locating roll shaft is arranged above the conveying belt. The polishing grinding device comprises a vertical pedestal, a drive wheel, a driven wheel, and an abrasive belt. The conveying belt is provided with a pressure sensor. The driven wheel is provided with a lifting drive structure. Moreover, the abrasive belt is provided with an offset sensing switch for sensing a positional deviation of the abrasive belt and a correcting mechanism for pushing and correcting an abrasive belt winding position. The PLC controller is respectively connected with the motor, the pressure sensor, the lifting drive mechanism, the offset sensing switch and the correcting mechanism. The automation degree and the intelligent degree of the polishing grinding machine are increased greatly by automatically sensing a contact pressure between the abrasive belt and a workpiece, automatically sensing the winding position of the abrasive belt, and automatically regulating the contact pressure and the winding position in real time based on the actual conditions, accordingly increasing the machining efficiency and guaranteeing the polishing grinding quality better.

The invention discloses a maintenance method for a high-pressure casting mold. The maintenance method comprises the steps of air injection and water drainage, concentrated hydrochloric acid brushing, water injection and cleaning, and the like, wherein the air injection and water drainage step is that water is injected into waterways and micro holes in the mold through a drainage hole and an exhaust hole in the mold at the air pressure of 0.45 to 0.55 MPa till water in the mold is drained; the concentrated hydrochloric acid brushing step is that the surface of the mold is brushed with concentrated hydrochloric acid through a fur brush; and the water injection and cleaning step is that water is injected into the waterways in the mold for 30 to 60 min through the drainage hole in the mold at the water pressure of 0.2 to 0.4 MPa, and the surface of the mold is cleaned through clean water at the same time. According to the maintenance method, the operation is simple, the cost is low, the mold darkening is avoided while the mold surface is cleaned, the mold appearance is improved, the drainage and exhaust effect of the mold is improved while the micro holes of the mold are dredged, the service life of the mold is prolonged, and the maintenance method can be reutilized and can be popularized and applied to maintenance of ceramic molds.

The invention relates to an electrical cabinet, in particular to an electrical cabinet capable of automatically cleaning a dust screen. The technical problem to be solved by the invention is to provide the electrical cabinet capable of automatically cleaning the dust screen, which does not need to manually clean the dust screen. The electrical cabinet capable of automatically cleaning a dust screen comprises an electrical cabinet body; an electrical cabinet dust screen which is arranged on the electrical cabinet body in a sliding manner; a moving assembly which is mounted on the electrical cabinet body; and a cleaning assembly which is installed on the electrical cabinet body. The electrical cabinet is provided with a gear and a rack, so a rolling brush can rotate, then the rolling brush cleans an electrical cabinet dustproof net more thoroughly, and the situation that the heat dissipation effect of an electrical cabinet is affected due to the fact that cleaning is not thorough is prevented; through cooperation of the first circular block and the second circular block, the electrical cabinet dustproof net is shaken, so that dust is prevented from adhering to the electrical cabinetdustproof net, and the dust suction assembly can suck the dust conveniently.

The invention relates to the technical field of batteries, and discloses a protection circuit, a battery and an aircraft. The protection circuit comprises a charging and discharging circuit, an overvoltage protection circuit and a delay circuit. The overvoltage protection circuit and the delay circuit are connected with the charging and discharging circuit; when the input voltage input to the charging and discharging circuit is greater than a preset voltage threshold, the overvoltage protection circuit is switched on, so that the charging and discharging circuit is in a switch-off state to becut off; when the input voltage is decreased from a value greater than the preset voltage threshold to a value equal to the preset voltage threshold, the overvoltage protection circuit is disconnected, the delay circuit is used for delaying, the charging and discharging circuit enters a switch-on state after a preset delay time, and accordingly, the charging and discharging circuit is switched on.By the protection circuit, influences on normal power supply of the battery and damage to related devices, both caused by repeated fluctuations of the voltage output by the protection circuit at thecritical point of overvoltage protection, can be avoided, and accordingly, the service lives of the battery and the aircraft are prolonged.

The invention discloses an arrangement device for a capacitor with pins. The device comprises a feeding arrangement device and a detection clamping device. The detection clamping device comprises two clamping conveying belts which are oppositely arranged and synchronously move, the conveying surfaces of the two clamping conveying belts are oppositely arranged, and the distance between the two conveying surfaces adapts to a capacitor main body; the two conveying surfaces clamp the capacitor from two sides of the capacitor main body and convey the capacitor forwards; and the feeding arrangement device is arranged at the feeding end of the detection clamping device. According to the arrangement device for the capacitor with the pins, clamping and synchronous conveying of the capacitor are achieved through the detection clamping device, image extraction of all detection positions is completed in the clamping and forward conveying process of the capacitor, appearance detection is achieved, and in other words, at the moment when image extraction is conducted on the capacitor, the capacitor and the image extraction device are relatively static or fixed, the posture of the capacitor is controllable, the imaging position is controllable, the extracted image is reliable, and the appearance detection of the capacitor is accurate and reliable.

The invention discloses a gas-liquid purification hot-air circulation device and a clothes care device. The gas-liquid purification hot-air circulation device comprises a gas-liquid purification collection component, a hot-air generation component and a switchable air channel component, the gas-liquid purification collection component comprises a collection container, a connecting flange, a purifier support, a purifier and a grid cover plate, gas and liquid in a clothes treatment cavity of the clothes care device can be purified, filtered and recovered, recovered liquid is discharged from a water drainage port and then saved, so that liquid is purified and collected, purified gas is discharged from an air outlet, the hot-air generation component of the clothes care device sucks the recovered purified gas through a fan, the recovered gas is heated by a PTC (positive temperature coefficient) heater and discharged into the clothes treatment cavity through the switchable air channel component to treat clothes, and hot air is cycled. According to the device, the recovered gas with high temperature serves as a new supplement source to be used, energy consumption is low, and costs are saved.

The application discloses an optical device for detecting an optical diffractive element based on mutual capacitance. The optical device comprises the optical diffractive element, a first capacitor electrode, a second capacitor electrode and a detection circuit, wherein the first capacitor electrode is located at one side of the optical diffractive element, the second capacitor electrode and the first capacitor electrode are located oppositely on the other side of the optical diffractive element, and the detection circuit is electrically connected to the first capacitor electrode and the second capacitor electrode to detect the mutual capacitance between the first capacitor electrode and the second capacitor electrode.

The invention relates to the technical field of cable wrapping wire detection, and discloses rated cable wrapping insulation wire detection equipment. Placement plates are symmetrically installed on the upper surface of a detection box and in front of a handle, and a display screen and a control button are arranged on the front surface of the detection box from top to bottom; a switch is arrangedon the front surface of the detection box and located on one side of the control button, a voice port and a detection hole are formed in the front surface of the detection box and located on the otherside of the control button from top to bottom, a second alarm lamp and a first alarm lamp are arranged above the voice port from left to right, and a protective pad is installed on the lower surfaceof the detection box. The surface condition of a wrapping wire fixed in a placement ring can be collected through a collection box, the situation that normal use of the wrapping wire is affected due to damage of the surface of the wrapping wire is prevented, meanwhile, the damage position of the wrapping wire can be accurately positioned through the action of a positioning sensor, and workers canconveniently handle the situation in time.

The invention discloses a disk hill-shaped part in a flat knitting machine. The part comprises a trapezoid body, the upper edge of the body is composed of two inverted-V-shaped needle walking faces, the surface of the body comprises a sunken part, the center position of the sunken part is provided with a triangular boss, the two sides of the body are each provided with a needle rising face, two needle walking bosses are arranged on the sunken part of the body, and are symmetrically mounted on the two sides of the triangular boss, the upper edge of each needle walking boss comprises a first needle walking face which is inclined and a second needle walking face which is horizontally mounted, the high-position ends of the first needle walking faces are connected with the needle rising faces,the low-position ends of the first needle walking faces are connected with the second needle walking faces, a needle walking face of ejector pin rod lower stitch operation is added on an existing diskhill-shaped part, lower stitches can be protected, meanwhile, in the process that a coil drives a turning needle tongue to be closed, the first needle walking faces enabling ejector pin rods on the needle connecting position to ascend are added, the coil tension is relieved, and the phenomenon that the tightness of the fabric is affected due to the fact that the coil is supported to be open or the coil is supported to be damaged, and the fabric is damaged can be avoided.

The invention discloses a high pressure pouring mold surface oxidization treatment method which comprises the steps of air injection drainage, brushing of a sodium hypochlorite solution, water injection cleaning and the like. According to air injection drainage, air with the air pressure being 0.45-0.55 MPa is injected into water channels and micro-holes in a mold through drainage and air exhaust holes in the mold till moisture in the mold is fully drained. According to brushing of the sodium hypochlorite solution, the sodium hypochlorite solution is brushed on the surface of the mold through a hairbrush. According to water injection cleaning, water with the hydraulic pressure being 0.2-0.4 MPa is injected into the water channels in the mold through water drainage holes in the mold, and the surface of the mold is washed through clean water at the same time. The high pressure pouring mold surface oxidization treatment method is easy to operate and low in cost, mold oxidization and blocking of the micro-holes in the mold are prevented while mold oxidization is eliminated, the appearance of the mold is improved, the service life of the mold is prolonged, and the oxidization treatment method can be reused and applied and popularized to ceramic mold oxidization treatment.

The invention provides an electric water boiler with a scale removal function. The electric water boiler comprises an outer shell and an inner container, and water outlet faucets are arranged on the outer shell and connected with the inner container. The electric water boiler is characterized in that a longitudinal water separation plate is arranged in the inner container and divides the inner container into a heating cavity and a circulating cavity, and a scale removal cavity is formed in the bottom of the longitudinal water separation plate and makes the heating cavity and the circulating cavity communicated. The electric water boiler has the advantages that by dividing the interior of a box into two parts, namely, the heating cavity and the circulating cavity through the longitudinal water separation plate, when a heating tube works, the interior of the circulating cavity is a quiet zone relative to the interior of the heating cavity, and scale in water flowing into the circulating cavity is likely to precipitate at the bottom of the circulating cavity instead of adhering to the side wall of the box; by additionally forming the trapezoidal groove or concave groove scale removal cavity, centralized collection of scale is intensified, and scale removal is convenient; by adopting the longitudinal water separation plate, the probability of mixing of water in the box can be effectively reduced, and the situation of mixing of unboiled water and boiled water can be greatly reduced.

The invention belongs to the technical field of structural vibration isolation, and discloses a rigidity-adjustable magneto-rheological vibration isolation device for a multi-rotor vehicle body. The device is characterized in that at least one rigidity-adjustable magneto-rheological vibration isolator is uniformly arranged between an upper panel and a lower panel of the aircraft body; the magneto-rheological vibration isolator comprises a magnetic isolation base and a magnetic conduction shell, an iron core is mounted in the center of the magnetic conduction shell, and the bottom of the iron core is connected to the magnetic isolation base through a spring; a magneto-rheological elastomer is arranged between the iron core and the magnetic conduction shell; the middle part of the magneto-rheological elastomer is separated by a magnetic isolation plate; and a coil and a permanent magnet are mounted in an annular space in the magnetic conduction shell, the direction of a magnetic field generated by the coil is opposite to that of a magnetic field generated by the permanent magnet, and the magnetic field of the permanent magnet can be counteracted. According to the invention, a ceramicmagnet is used as the permanent magnet, a constant magnetic field is provided when the multi-rotor unmanned aerial vehicle flies normally, and the rigidity of the rack is guaranteed; under the condition that the multi-rotor unmanned aerial vehicle is subjected to great vibration, the magnetic field is adjusted by the coil, the rigidity of the magneto-rheological material is changed in real time,and the purpose of vibration isolation is achieved.

The invention belongs to the technical field of construction waste treatment, and specifically discloses a high-efficiency and environment-friendly construction waste crushing device. The high-efficiency and environment-friendly construction waste crushing device comprises a collection box and a crushing mechanism, and the crushing mechanism is mounted in the collection box; the crushing mechanismcomprises a lower baffle; the lower baffle is fixedly connected with left, right, front and back baffles; the crushing mechanism is internally provided with a mounting board fixedly connected with the front and back baffles; a lower crushing board is in hinge joint on the mounting board; an upper crushing board is in hinge joint on an upper end of the lower crushing board; a platform board fixedly connected on the front and back baffles and connected with the upper crushing board through hinge joint is mounted in the crushing mechanism; a hydraulic cylinder is mounted on the mounting board; apiston rod of the hydraulic cylinder is fixedly connected with a driving rod in hinge joint with the upper and lower crushing boards; a conveyor belt, of which a surface is provided with hook teeth,is mounted on an external side wall of the left baffle; and the high-efficiency and environment-friendly construction waste crushing device is simple in structure, can separate steel bars from crushedcement blocks, and can avoid manual secondary treatment.

The invention relates to the technical field of heat pump air conditioner outdoor units, in particular to a mounting base for a heat pump air conditioner outdoor unit. The mounting base comprises a base body. The base body is provided with an inner cavity. A buffer mechanism is arranged in the inner cavity of the base body. A containing plate is arranged at the upper end of the buffer mechanism. Frames are symmetrically arranged at the left end and the right end of the base body. Threaded sleeves are symmetrically connected to the upper portions of the left side walls and the right side wallsof the two sets of frames in an inserted manner. A screw is in threaded connection in each threaded sleeve. Rotating handles are symmetrically arranged at the outer side ends of the two sets of screws. Locating blocks are symmetrically arranged at the inner side ends of the two sets of screws. According to the mounting base for the heat pump air conditioner outdoor unit, through design and use ofa series of structures, the situation that the heat pump air conditioner outdoor unit shakes when bearing vibration or impacting, the inner structure of the heat pump air conditioner outdoor unit is influenced, and the heat pump air conditioner outdoor unit is damaged is avoided, and the use effect of the heat pump air conditioner outdoor unit is improved; and the mounting base is simple and novelin structure, reasonable in design and convenient to use and has high promotional value.

The invention discloses an injection mold and a direct pushing mechanism thereof. A counter bore perpendicular o the moving direction of a direct pushing block is formed in the direct pushing block. A piston sliding in the axial direction is arranged in the counter bore. The end of the piston extends vertically to form an elastic needle. A through groove is formed in the piston. A sealed closed cavity is formed by the inner wall of the through groove and the inner wall of the counter bore. A gear is arranged in the cavity. A rack engaged with the gear is arranged at the groove bottom of the through groove. The direct pushing mechanism further comprises a transmission rod arranged in a direct pushing rod in a penetrating mode. The transmission rod is fixed to a bottom plate of the mold, and one section of the transmission rod is placed in the direct pushing block and penetrates through the gear. One section of the transmission rod is arranged to be a spiral section. A through hole engaged with the spiral section is formed in the middle of the gear. The demolding and withdrawing resetting processes of the direct pushing rod and the releasing and pushing resetting processes of the elastic needle in the direct pushing block are synchronous, extrusion abrasion of the elastic needle and a mold core is avoided, and the damping function is achieved to a certain extent in the demolding and withdrawing resetting processes, so that the demolding quality is improved, and the direct pushing block is prevented from being damaged.

The invention discloses a pressure taking device for steam pocket pressure measurement. The device (1) comprises a main body part (E), a conduit part and an exhausting screwed plug (D), wherein the device is connected with a pressure transmitter film box (3) through a pressure guide pipe (2); the conduit part is divided into a first conduit (A), a second conduit (B) and a third conduit (C) which are connected with the bottom part, the side part and the top part of the main body part (E) respectively and extend into the main body part (E); the first conduit (A) is connected with a steam pocket (4) through a steam pocket pressure-taking root valve (5); the second conduit (B) is connected with the pressure guide pipe (2); an instrument needle valve is arranged on the third conduit (C); and the exhausting screwed plug (D) is in threaded connection with the main body part (E). The device has a simple structure, is convenient to mount and use, and greatly prolongs the service life of a pressure transmitter.

The invention provides a rail fastener device. The rail fastener device can solve the problems existing in a current fastener device of low system security, high system maintenance difficulty and high cost. A base plate is arranged on a sleeper, and symmetrical bosses are arranged on the left and right sides of the base plate respectively and provided with spike holes running through the whole base plate; the bottom of a rail is placed on the base plate through a pad plate under the rail and located between the two bosses; the two sides of the rail are fastened on the base plate through two fastening assemblies respectively; each fastening assembly comprises a gauge block, an elastic strip, a spike and a casing, and the casings are embedded in the sleeper; a pressing plate part of each gauge block is arranged at the top end of the side, facing the rail, of an abutting part, the two end faces of the abutting part of each gauge block abut against the bosses and the rail respectively, and the pressing plate part of each gauge block presses the rail on the pad plate under the rail; the spikes extend into the casings embedded in the sleeper and are in tight threaded connection with the casings after penetrating through the elastic strips and the spike holes; arc grooves are formed in the bosses of the base plate and matched with the arc faces of the tails of the W-shaped elastic strips.

The invention relates to a transmission device for an inter-row seeding machine, which belongs to the technical field of agricultural machinery. In the invention, upper ends of land wheel supporting arms are hinged with a land wheel connecting seat, and lower ends of the land wheel supporting arms are movably connected with stubble avoiding land wheels through a land wheel shaft; one end of the land wheel shaft is fixedly connected with an overrunning clutch sprocket wheel and the inner ring of an overrunning clutch, and the clutch sprocket wheel is in chain connection with a intermediate drive sprocket wheel through a chain and a double-tensioning sprocket wheel; the intermediate drive sprocket wheel is fixedly connected with one end of a intermediate transmission shaft, and the other end of the intermediate transmission shaft is movably connected with a seed box support through a bearing; and one end of a double-tensioning seat plate is fixedly connected with the land wheel supporting arms, and the other end of the double-tensioning seat plate is fixedly connected with a tensioning cushion cover. The transmission device is compact in structure, and the land wheels therein can walk on the stubble field reliably; and the transmission device can solve the problems of influence on the operation performance of a machine tool and damage to the machine tool caused by the situation that other components of the machine tool generate reverse rotating due to the contrarotating of land wheels during the transportation or operation of the machine tool, and can be widely applicable to various types of inter-row seeding machines and similar agricultural machinery.

The invention relates to the technical field of photovoltaic power generation, and discloses a distributed solar power generation device and system based on Internet of Things control, rotating frames are rotated by a certain angle by turning over a motor so as to obtain an optimal illumination angle, and meanwhile, a certain fixing effect is achieved on a rotating shaft and the plurality of rotating frames, so that the rotating shaft and the plurality of rotating frames can be fixed. A plurality of driving air cylinders are controlled to operate at the same time, so that a plurality of driving telescopic rods drive telescopic blocks to move in opposite directions, and then a plurality of extension frames are driven by a plurality of connecting blocks to extend towards one side from the lower part of a corresponding rotating frame under the guide action of corresponding guide columns and T-shaped sliding grooves; therefore, the multiple solar sailboards and the extension sailboard are fully exposed under illumination, more radiation energy is obtained in unit time, the solar energy obtaining rate is improved, compared with the prior art that multiple sailboards are vertically distributed, the daylighting influence among the multiple sailboards can be avoided, the overall height of the device can be reduced, and the high-altitude risk is reduced.

The invention discloses an air-conditioning switch. A triple-voltage switch integrates three functions of low-voltage control, medium-voltage control and high-voltage control of a refrigerant in an air-conditioning refrigerating system, so that the triple-voltage switch can control the stock of the refrigerant of the refrigerating system, i.e. low-voltage control, starting and stopping of a cooling fan, i.e. medium-voltage control, and starting and stopping of a compressor, i.e. high-voltage control. Therefore, in the air-conditioning switch, not only is the production cost of the air-conditioning refrigerating system reduced, but also the occupied space and the fault probability are reduced when the voltage switch is installed.

The invention discloses a high-efficiency plastic granulator. The high-efficiency plastic granulator structurally includes a machine base, a receiving box, a cutter, a processing box, a feeding bin and a motor. The receiving box is located at the downward position of the machine base, the processing box and the machine base are of an integrated structure, a conveying control device is arranged inthe feed bin, a driver is located at the lower position of a conveyor for electrical connection, and a pushing device is fixed to the center position of the conveyor. By means of the high-efficiency plastic granulator, the pushing device is matched with the conveyor, and therefore material conveying is controlled; the conveying amount is adjusted by the speed of the processing time, when materialspass through a material guide groove, a cam is in movable fit with a protruding block, the cam jacks the protruding block, an inclined plate moves up and down, the protruding block is continuously jacked by the cam, and uninterrupted up-and-down movement is carried out, so that the materials with weak static generated by friction are prevented from being left in the material guide groove, the supplied materials are effectively controlled, and the conditions that the processing effect is influenced and a turning tool of the granulator is damaged due to internal operation blockage in the processing process are avoided.

The invention relates to the technical field of dew condensation measurement, and provides an imaging type dew-point instrument. The instrument comprises a control system, a dew condensation system, a heat dissipation system and a photoelectric detection system, the dew condensation system, the heat dissipation system and the photoelectric detection system are respectively connected with the control system, the dew condensation system comprises a mirror surface, and the photoelectric detection system comprises a photoelectric imaging device and a detection cover body; and the detection cover body comprises a detection cavity and a detection upper cover arranged above the detection cavity, the photoelectric imaging device is arranged in the detection upper cover and comprises a light source and a camera, the camera is provided with a lens, the light source is arranged on one side of the detection upper cover, and the camera is arranged in the middle of the detection upper cover. According to the invention, the photoelectric detection system is improved, the problems of poor reliability and anti-interference performance of the dew-point instrument are solved, and the measured value of the dew point is more accurate.