50results about How to "Avoid abnormal movements" patented technology

The invention relates to the technical field of engineering machinery, and discloses a load-sensitive hydraulic system, a power matching control method, device and system and an engineering machine. The load-sensitive hydraulic system, the power matching control method, device and system and the engineering machine are used for improving the control conformance, the dynamic responsiveness and the stability of the load-sensitive hydraulic system and the control performance of power matching. The load-sensitive hydraulic system comprises a variable pump assembly, a main control valve set, an actuator, an overflow valve and a flow control valve set. An oil inlet of the main control valve set is communicated with an oil outlet of the variable pump assembly, and a load-sensitive feedback oil path is arranged between a control oil port of the main control valve set and a control oil port of the variable pump assembly. Two oil ports of the actuator are communicated with two working oil ports of the main control valve set respectively. An inlet oil path of the overflow valve is communicated with the load-sensitive feedback oil path, and a switch valve is arranged on the inlet oil path of the overflow valve. An inlet oil path of the flow control valve is communicated with the load-sensitive feedback oil path, and the flow control valve comprises a proportional throttle valve and a first pressure-compensated valve arranged on an inlet oil path of the proportional throttle valve.

The invention discloses an alternating current charging pile control system. The alternating current charging pile control system comprises a main controller, a communication managing module, a billing module and an automatic protection module. The communication managing module comprises a DGUS screen, a loudspeaker, a printer, a charging state indicator and an output socket. The billing module comprises a managing host, an IC card reader-writer, an IC card, an antenna and a multifunctional power meter. The automatic protection module comprises a one-way electric leakage protector, an anti-thunder, a safety relay, an alternating current contactor and a sudden stop switch. According to the alternating current charging pile control system, user account information is stored into the main controller and monitored and updated in real time, a user can pull up a cable at any time in the charging process, charging is automatically quitted, and flexibility is improved; three-level redundancy is designed, accurate coefficients of fault detecting and fault protecting are increased, and misfunction and no-action caused by device aging, the weather and the like are avoided; a networking billing unit and a stand-alone billing unit are arranged, information such as the user account balance can be temporarily stored under the situation of networking failures or power grid failures, and the billing accuracy and safety are guaranteed.

A trolley and parking system using the trolley for transporting cars and the like. The present trolley includes a main body, capable of moving; and a clamping apparatus, having at least a first and a second moving plate and at least a pair of clamping claws. The present parking system includes a loading table, a differential table moving relative to the loading table, a trolley moving relative to the differential table, a longitudinal driving device, a power tube line transmission mechanism, and a power valve station and an electric control system thereof.

The invention aims to provide a mine single-rope hoisting balance wheel brake rope anti-case-crashing device and relates to the technical field of mine safety devices. A hoisting container is connected with another hoisting balance container through more than two brake ropes and more than two corresponding balance wheels; each balance wheel is arranged on a balance wheel axle; the balance wheel axle is arranged on an elastic bearing device through a bearing; the wheel edge of the balance wheel is provided with a friction brake surface; a damper brake is arranged below the balance wheel; and an idle stroke distance exists in the upward direction and the downward direction of the damper brake and the friction brake surface of the balance wheel. The device not only keeps the advantage of the less investment cost of single-rope hoisting, but also has the safety property of multi-rope falling prevention protection, can completely solve the problems that a falling protector cannot be actuated when rope breaking case crashing or rope sliding case crashing happen in a traditional falling protector system, buffer brake force is uncertain, and the buffer brake force is difficult to be accurately calibrated in an use site, and has the advantages of strong safety and reliability and wide application range.

The invention relates to electronic equipment, a surgical robot system and a control method of the surgical robot system, and aims to acquire a system safety state according to the states of a masterend and a slave end and send out corresponding safety prompt information and / or safety processing measures according to a system safety result in combination with a preset system safety strategy. Therefore, an operator can acquire the abnormal state of the surgical robot system according to the safety prompt information conveniently and / or in an assisted mode, and can take corresponding safety processing measures, so that abnormal movement of the surgical robot system is prevented, the safety of a patient is ensured, and the safe and smooth operation process is ensured.

A method for realizing control machine of motor driven roll-up door utilizes stroke learning program, return to zero program of power off restart-up and closing door manually, forced return to zero program for larger distance between roll-up door and ground surface, stroke regulation program for roll-up door expansion by heat and contraction by cold and automatic return to zero program form certain period of roll-up door operation as well as some hardware units to form control machine of motor driven roll-up door.

The invention provides a remote control type magnetic drive hollow glass built-in shutter, and belongs to the technical field of sunshade hollow glass products. The remote control type magnetic drivehollow glass built-in shutter comprises a shutter body, a shutter blind lifting and curtain piece overturning executing mechanism, an executing mechanism acting shaft and a magnetic transmission drivedevice, wherein the shutter body comprises a rectangular frame, inner glass, outer glass and an upper transverse frame strip; and the magnetic transmission drive device comprises a shell, a tubular motor, a magnetic column driving transmission mechanism, a bearing base and a magnetic column driven transmission mechanism. The remote control type magnetic drive hollow glass built-in shutter is characterized in that a tubular motor limiting device and a wireless signal receiving controller are arranged in a shell cavity, wherein the wireless signal receiving controller is connected with a powersupply guaranteeing mechanism, a shell magnetic passing groove is formed in the rear side face of the shell, a bearing base magnetic passing groove is formed in the front side wall of the shell, and the magnetic column driving transmission mechanism and the magnetic column driven transmission mechanism are in magnetic fit; and the power supply guaranteeing mechanism comprises a storage battery anda charging socket or comprises a storage battery and an autonomous power supply mechanism. According to the remote control type magnetic drive hollow glass built-in shutter, labor is saved during operation, the daylighting area is prevented from being occupied, abnormal movement is avoided, flexibility is good, maintenance is facilitated, and the intelligent control requirement is met.

The invention provides a rechargeable magnetic drive hollow glass built-in shutter. The rechargeable magnetic drive hollow glass built-in shutter comprises a shutter body and a magnetic transmission driving device, wherein the shutter body comprises a rectangular frame body, inner glass, outer glass and an upper transverse frame strip; a shutter blind is arranged in a shutter blind cavity; a shutter blind lifting and blind sheet overturning executing mechanism is arranged in an upper transverse frame strip cavity; an acting shaft of the executing mechanism is connected with the shutter blind lifting and blind sheet overturning executing mechanism; the magnetic transmission driving device comprises a shell, a tubular motor, a magnetic column driving transmission mechanism, a supporting seatand a magnetic column driven transmission mechanism. The rechargeable magnetic drive hollow glass built-in shutter is characterized in that a tubular motor limiting device and a tubular motor drivingcontrol mechanism are arranged in a shell cavity along the length direction of the cavity wall of the shell cavity; a group of operation button holes are formed in the front side face of the shell, and a shell magnetic through groove is formed in the rear side face of the shell; a supporting seat magnetic through groove is formed in the front side wall of the supporting seat; and the magnetic column driving transmission mechanism and the magnetic column driven transmission mechanism are in magnetic fit with each other. The rechargeable magnetic drive hollow glass built-in shutter is easy to operate and labor-saving; a slide way in the cavity is omitted, and the lighting area is prevented from being occupied; the rechargeable magnetic drive hollow glass built-in shutter is convenient to manufacture and assemble; the requirement on intelligent control is met.

Provided is a signalling remote control circuit, comprising a hand-held end remote control circuit and a signalling receiving end circuit in a mutual communication. The hand-held end remote control circuit comprises a microprocessor circuit 1, a button input circuit, a wireless communication module 1 and a power supply module, wherein the microprocessor circuit 1 is connected to the button input circuit, the microprocessor circuit 1 is connected to the wireless communication module 1, the power supply module is respectively connected to the microprocessor circuit 1, the button input circuit and the wireless communication module 1. The signalling receiving end circuit comprises a microprocessor circuit 2, a wireless communication module 2, a command execution circuit and a power supply circuit, wherein the microprocessor circuit 2 is connected to the command execution circuit and the power supply circuit is respectively connected to the microprocessor circuit 2, the command execution circuit and the wireless communication module 2. The circuit has advantages such as scientific design, convenient usage, strong anti-interference capability, low error rate, safety and reliability and stable performance.

The invention relates to a converter station valve hall fire signal extension device which comprises three relays. Each relay comprises two normally-open contacts, two normally-closed contacts and an abnormal alarm contact; the first normally-open contact of the first relay and the first normally-open contact of the second relay are parallelly connected prior to being connected to a first direct-current control and protection system, the second normally-open contact of the first relay and the second normally-open contact of the second relay are parallelly connected prior to being connected to a second direct-current control and protection system, and the two normally-open contacts of the third relay are parallelly connected prior to being connected to a fire control system; the first normally-closed contact of the first relay is connected to the first direct-current control and protect system, the first normally-closed contact of the second relay is connected to the second direct-current control and protection system, and the first normally-closed contact of the third relay is connected to the fire control system. By the arrangement, false alarm signals and false operations caused by fault of the single relay are prevented, and failure in actuate caused by the fault of the single relay in case of fire is prevented as well.

The invention provides a self-powered electromagnetic drive hollow glass built-in shutter. The self-powered electromagnetic drive hollow glass built-in shutter comprises a shutter body and a magnetictransmission driving device, wherein the shutter body comprises a rectangular frame body, inner glass, outer glass and an upper transverse frame strip; a shutter blind is arranged in a shutter blind cavity; a shutter blind lifting and curtain piece overturning executing mechanism is arranged in an upper transverse frame strip cavity; an acting shaft of the executing mechanism is connected with theshutter blind lifting and curtain piece overturning executing mechanism; and the magnetic transmission driving device comprises a shell, a tubular motor, a magnetic column driving transmission mechanism, a supporting seat and a magnetic column driven transmission mechanism. The self-powered electromagnetic drive hollow glass built-in shutter is characterized by further comprising a solar self-powered mechanism and a storage battery, wherein the solar self-powered mechanism is arranged above one side, facing the outside, of the outer glass; a group of operation button holes are formed in the front side face of the shell, and a shell magnetic through groove is formed in the rear side face of the shell; a supporting seat magnetic through groove is formed in the front side wall of the supporting seat; and the magnetic column driving transmission mechanism and the magnetic column driven transmission mechanism are in magnetic fit with each other. The self-powered electromagnetic drive hollow glass built-in shutter is light and labor-saving in operation; the occupation of a lighting area and abnormal movement are avoided; the lifting of the shutter blind or the overturning of curtain pieces is not influenced.

The invention relates to an adjusting valve system having an energy regeneration effect. The system comprises the adjusting valve, an energy regeneration mechanism, and an execution mechanism, whereinthe adjusting valve comprises a valve shell, wherein a flow channel is arranged in the valve shell, and a movable valve core is arranged in the flow channel; the energy regeneration mechanism comprises an energy regeneration cavity body structure connected with the valve shell; the energy regeneration cavity body structure comprises a first cavity body structure and a second cavity body structure; an internal space of the first cavity body structure communicates with the flow channel; a first piston is arranged and is elastically connected with a cavity body wall of the first cavity body structure; a second piston which can do synchronous motion together with the first piston is arranged in the second cavity body structure; two cavity bodies which are divided by the second cavity body structure are connected with an energy storage mechanism and an oil tank through the second piston; the execution mechanism comprises a hydraulic cylinder; and the hydraulic cylinder is connected with avalve core and is also connected with the energy storage mechanism. The adjusting valve system disclosed by the invention has the advantages that energy produced by fluid oscillation can be effectively absorbed and utilized, so that the operation stability of the adjusting valve is improved.

The invention discloses an automatic exhaust valve. The automatic exhaust valve is characterized in that the automatic exhaust valve is of an inverted-T-shaped structure and comprises a pipeline inlet (1), a gas outlet (2), a pipeline outlet (3), a floater (4), a valve deck (5), a valve body (6) and a connecting pin (7); the pipeline outlet (3) of the automatic exhaust valve is connected with an oil tank outlet pipeline (20) through a flange; and the pipeline inlet (1) of the automatic exhaust valve is connected with a floating oil outlet device (22) through a flange. According to the automatic exhaust valve, a safety protection measure is taken to prevent gas in the pipeline from damaging the floating oil outlet device, the accident that the gas of the pipeline flows back, consequently, the floating oil outlet device moves freely, and then an oil tank is damaged is avoided, and the automatic exhaust valve is good in exhaust effect, convenient to mount and use and stable and reliable in long-time work.

The invention provides an automatic low-voltage circuit breaker closing device, and belongs to the field of reclosing devices. The device comprises a low-voltage circuit breaker which is provided with a time relay, wherein a sliding contact, a termination contact and a clock mechanism are arranged in the time relay; the sliding contact and the termination contact are located at two ends of a right-angle connecting rod and provided with corresponding static contacts respectively, and the sliding contact and the termination contact are driven by the clock mechanism; a No.1 port and a No.13 port of the time relay are connected among different leading-out terminals of a low voltage side of a transformer, a fuse protector and the low-voltage circuit breaker respectively; and a No.17 port and a No.3 port of the time relay are short-circuited, and a No.16 port and a No.4 port are connected with two ends of an electric closing button of the low-voltage circuit breaker in parallel. According to the device, manpower is saved, the closing is fast, the corporate image is better maintained, and the device is simple in structure and convenient and easy to implement.

A 3-D printing apparatus is configured to make a modeling material form a 3-D object layer by layer. The 3-D printing apparatus includes a printing assembly and a cleaning unit. The printing assembly includes a feeding tube, a nozzle and a driving wheel set disposed between the feeding tube and the nozzle to drive the modeling material transferred to the nozzle from the feeding tube and then exiting from the printing assembly via the nozzle so as to form a 3-D object layer by layer. The cleaning unit has a brush, in which the brush leans against on the driving wheel set to clean out the residual modeling material while the driving wheel set rotates relatively to the cleaning unit.

The embodiment of the invention belongs to the technical field of laser cutting control, and relates to a capacitance calibration effect evaluation method and system. According to the technical schemeprovided by the invention, the method comprises the following steps: sampling a calibration point to obtain sampling data of the distance and frequency of the calibration point; processing the sampling data to obtain an evaluation value of the sampling stability; constructing a calibration point distance and frequency curve, and obtaining an evaluation value of curve smoothness; and outputting acalibration effect according to the evaluation value of the sampling stability and the evaluation value of the curve smoothness. The calibration effect is output according to the evaluation value of the sampling stability and the evaluation value of the curve smoothness, feedback of the calibration effect output in the capacitor calibration process is provided for an operator, and the calibrationeffect can be visually displayed. Whether wiring needs to be calibrated again or checked and the electromagnetic interference condition of the machine tool needs to be checked can be determined according to the finally output calibration effect, and subsequent decision and operation are facilitated.

A valve timing control apparatus includes a housing that is rotatable with a crankshaft; a vane rotor that is rotatable with a camshaft; and a phase controller to compulsorily change a rotation phase of the vane rotor alternately between an advance side and a retard side with respect to the housing if an engine shifts to a high rotation state after the engine continuously has a low rotation state for a predetermined period or more. The engine in the low rotation state has a rotation speed lower than a predetermined rotation speed. The engine in the high rotation state has a rotation speed equal to or higher than the predetermined rotation speed.

The invention discloses an impeller, a water flow switch, a heat exchanger and an air energy heat pump water heater. The impeller capable of accurately detecting the flow of a pipeline comprises a huband blades, and the side edges, connected with the hub, of the blades intersect with plain lines of the outer circumferential surface of the hub. The impeller can accurately detect the flow in the pipeline, so that the action of the corresponding water flow switch is more accurate, and the safety of the whole heat exchanger and the whole air energy heat pump water heater is protected.

The present disclosure discloses a message processing method and terminal device. The method includes: receiving a first message that carries displacement parameters and is sent by a client, the displacement parameters being generated by the client and used to indicate displacement of a virtual object in a virtual space; determining, according to the displacement parameters, whether the displacement conforms to a preset rule; and sending, if it is determined that the displacement does not conform to the preset rule, a second message used by the client to refuse the displacement. The present disclosure solves the technical problem in the existing technology that multiple terminal device resources need to be occupied to ensure appropriate movement of a virtual object.

The invention discloses a pulse width modulation system control method and a misoperation prevention circuit therefor. A pulse width modulation system comprises a microprocessor, a buffering circuit, and the misoperation prevention circuit. The misoperation prevention circuit is formed by that a power supply is connected between a first output end of the microprocessor and the starting end of the buffering circuit. The buffering circuit is provided with an output control end. The control method comprises steps: (a) sequentially supplying a first working voltage and a second working voltage to the microprocessor; (b) building a first output end corresponding to the second working voltage and building an output voltage in a process that the second working voltage rises to a needed voltage level from zero when the microprocessor receives the second working voltage; (c) enabling the output voltage to be converted into an enable voltage through the misoperation prevention circuit, and outputting the enable voltage to the starting end; (d) enabling the output control end to carry out high-impedance output according to the enable voltage of the starting end.

Provided is a signalling remote control circuit, comprising a hand-held end remote control circuit and a signalling receiving end circuit in a mutual communication. The hand-held end remote control circuit comprises a microprocessor circuit 1, a button input circuit, a wireless communication module 1 and a power supply module, wherein the microprocessor circuit 1 is connected to the button input circuit, the microprocessor circuit 1 is connected to the wireless communication module 1, the power supply module is respectively connected to the microprocessor circuit 1, the button input circuit and the wireless communication module 1. The signalling receiving end circuit comprises a microprocessor circuit 2, a wireless communication module 2, a command execution circuit and a power supply circuit, wherein the microprocessor circuit 2 is connected to the command execution circuit and the power supply circuit is respectively connected to the microprocessor circuit 2, the command execution circuit and the wireless communication module 2. The circuit has advantages such as scientific design, convenient usage, strong anti-interference capability, low error rate, safety and reliability and stable performance.

The invention discloses an automatic exhaust valve device. A valve body with the top end center provided with an exhaust port is included. The valve body is internally provided with a sealing device.The automatic exhaust valve device is characterized in that the sealing device is of a structure capable of sliding up and down in a cavity of the part, below the exhaust port, of the valve body and is mainly formed through assembling of a floater, sliding rails, sliding rail tracks and track fixing frames; a blockage part is arranged at the top end of the floater, and a gap is arranged between the top end of the floater and the top wall of a hollow cavity of the valve body; and the multiple sliding rails are vertically and evenly arranged at the bottom end of the floater, the sliding rail tracks are connected to the inner wall of the valve body, and a plurality of liquid discharging stop plates are further arranged below the sealing device. The automatic exhaust valve device effectively achieves the function of automatic pipeline gas discharging, the abnormal motion of a floating oil discharging device due to gas in a pipeline is avoided, and potential safety hazards existing in a storage tank due to the pipeline gas are eliminated. The structure is simple, the production cost is lower, installation and usage are simpler and more convenient, the long-term work performance is stable and reliable, and safety of the oil tank and the pipeline is ensured.