16results about How to "Control on and off" patented technology

The invention discloses an internal thread quick connector and a using method thereof.The internal thread quick connector comprises a body, a mandrel, an outer sleeve, a guide assembly, a tail ring, a nut sleeve, a pressing ring, a front sleeve and a guide sleeve, a first through hole is formed in the body, and a first sealing ring and a first check ring are arranged between the mandrel and the body; the guide assembly is used for limiting the axial relative movement between the main body and the mandrel; a second through hole is formed in the mandrel, and a self-closing valve for closing the second through hole is arranged in the first through hole; the outer sleeve is provided with a first sliding groove, and the tail ring is provided with a limiting shaft which can slide into or be separated from the first sliding groove. A claw is arranged between the mandrel and the nut sleeve, a threaded part is arranged at the front end of the claw, after the threaded part is inserted into the internal threaded part, the main body and the mandrel perform axial relative movement, and the claw is expanded by the mandrel, so that the threaded part is clamped on the internal threaded part. According to the internal thread quick connector and the using method thereof provided by the invention, the on-off of a medium is effectively controlled, and the internal thread quick connector is good in pressure resistance and suitable for being used under the environmental conditions of large drift diameter and high pressure.

The utility model discloses a water level control valve which comprises a water tank, a floater and a valve body. A communicating port is formed in the bottom of the water tank; the water tank is provided with a limited height water level C and a lower limit water level D; the valve body comprises a valve seat, a sliding pipe and a valve plug. The valve seat comprises a shunting seat, a water inlet pipe and a water outlet pipe; the communication port is used for being communicated with the bottom of a pure water cup; the water inlet pipe is communicated with an external water source; the water outlet pipe is used for communicating and conveying a water source to the water purifier; a shunting water inlet hole A and a shunting water outlet hole B are formed in the shunting seat, the shunting water inlet hole A is communicated with the water inlet pipe, and the shunting water outlet hole B is communicated with the water outlet pipe; a sliding pipe covers the outer side of the flow dividing seat, and the sliding pipe and the flow dividing seat form a valve cavity; the valve plug is slidably arranged in the sliding pipe. The valve plug linearly moves along the sliding pipe, and a sealing plug is installed at the end, facing the flow dividing base, of the valve plug. A spring is further installed in the sliding pipe. A sliding pipe containing position is arranged at the bottom of the floater, and a magnetic block is arranged in the floater and corresponds to the sliding pipe containing position.

This application discloses a piezoelectric pump, a gas circulation mechanism, and a circulation device. The circulation device includes a piezoelectric pump or a gas circulation mechanism. The piezoelectric pump includes at least one set of sub-pumps. Each sub-pump includes a housing and a vibration assembly. The housing includes a receiving cavity, at least one air inlet channel, and at least one combined air outlet channel communicating with the receiving cavity. The receiving cavity is connected to an external space through the air inlet channel and the combined air outlet channel. A dispersion structure is provided on the cavity wall of the receiving cavity. The vibration assembly is disposed in the receiving cavity, and the dispersion structure is used to disperse the reflected airflow from the cavity wall of the receiving cavity when the vibration assembly vibrates. The piezoelectric pump in this application can reduce operating noise and its own size, thereby meeting the user's dual requirements for quiet operation and lightweight design when using the circulation device.

The embodiment of the utility model discloses a test device, a test circuit and a test system, and relates to the field of test equipment. The testing device comprises a plurality of module modules, a plurality of channel modules, a control circuit, a first simulation module and a second simulation module. The plurality of module modules are arranged in parallel and are correspondingly connected with the plurality of acquisition modules; the plurality of channel modules are connected with the plurality of module modules; the control circuit is used for controlling the plurality of module modules and the plurality of channel modules; the first simulation module is connected with the plurality of channel modules; and the second simulation module is connected with the plurality of module modules. And the control circuit is configured to control the tested module to be communicated with the first simulation module through the plurality of connected channel modules when the tested acquisition module is tested. The testing device can quickly and independently test a single battery module, and the testing efficiency is improved.

The invention discloses a non-powered hydraulic system for a turning device, comprising an oil cylinder, a one-way throttle valve I, a one-way throttle valve II, a pressure measuring exhaust point, a plate-type manual ball valve, a pressure gauge switch, a threaded plug-in one-way valve I, a threaded plug-in one-way valve II, a threaded plug-in one-way valve III, a threaded plug-in one-way valve IV, a pressure gauge, a tubular ball valve, a plate-type ball valve, an accumulator, a pressure measuring exhaust line and an oil replenishment manual pump, wherein the one-way throttle valve I and the one-way throttle valve II are respectively connected to a bridge-type rectifying cut-off circuit composed of the threaded plug-in one-way valve I, the threaded plug-in one-way valve II, the threaded plug-in one-way valve III, the threaded plug-in one-way valve IV and the plate-type manual ball valve through a pipe joint and a pipeline. The invention utilizes the principle of a bridge-type rectifying cut-off circuit, so that the bidirectional liquid flow of the hydraulic circuit must pass through the plate-type manual ball valve, and the opening and closing of the plate-type manual ball valve can accurately control the on-off of the oil flow, so that the oil cylinder piston can be effectively locked within its stroke range.

The present invention discloses a live cleaning device for high-voltage electric equipment, and relates to the technical field of devices for cleaning with cleaning agents. The live cleaning device for high-voltage electric equipment comprises a symmetrically arranged mounting plate; the present invention controls the first semi-arc plate and the second semi-arc plate to rotate on the mounting plate, so as to facilitate the first semi-arc plate and the second semi-arc plate to be sleeved on the insulator to be cleaned, and when the pull ropes on the first semi-arc plate and the second semi-arc plate are pulled respectively, the first semi-arc plate and the second semi-arc plate can be deflected to the left and right, so that the first semi-arc plate and the second semi-arc plate are closer to the insulator, thereby improving the cleaning effect on the insulator; in addition, when the first semi-arc plate and the second semi-arc plate are left or right or the first semi-arc plate and the second semi-arc plate are unfolded, the connection and disconnection of the connecting pipe and the hose can be controlled autonomously and quickly, so as to achieve the pressurization effect of the spray hole.

The present invention discloses an anti-interference method for smart locks, and belongs to the technical field of smart locks. The method comprises the following steps: Step 1, after the MCU module of the smart lock receives the unlocking instruction, it verifies the correctness of the unlocking instruction; Step 2, if the verification is passed, it issues a power supply instruction to the power control module; if the verification is different, it ends; Step 3, the power control module receives the power supply instruction and supplies power to the motor control module; Step 4, the MCU module sends the unlocking instruction to the motor control module; Step 5, after the motor control module receives the unlocking instruction, it controls the motor to drive the lock body to unlock. Aiming at the technical problem that the smart lock in the prior art is opened by interference from Tesla, intercom signals, etc., and there are potential safety hazards, by adding a power control unit of the motor, the anti-interference ability of the smart lock can be improved, and the smart lock can be automatically unlocked without interference, thereby avoiding potential safety hazards of the smart lock.

This invention relates to the field of pipeline temperature control switch technology, and more particularly to a temperature control valve, comprising a valve body, a valve core, a temperature control unit, and a drive device. The valve body has an inlet channel and an outlet channel separated by a partition, and the partition has a connecting port. The valve core includes a push block positioned above the connecting port, with multiple arc teeth on its lower part. The output end of the drive device is connected to the push block. A sleeve is provided on the push block, with one end of a rotating rod connected to the output end of a drive motor, and the other end threadedly connected to the sleeve. The drive device causes the push block to gradually move towards the connecting port, and the lower part of the arc teeth gradually enters the connecting port. Water flowing through the connecting port exits through the channel between two arc teeth. Multiple channels between adjacent arc teeth form a multi-channel structure, reducing pressure loss and side leakage, greatly improving the performance of this temperature control valve. The threaded connection allows for more precise control of the channel opening size and flow rate ratio, resulting in more accurate temperature control.

This utility model provides a light-guiding button structure and an electronic device with a button structure, relating to the field of light-guided buttons. The light-guiding button structure includes a housing with a light-transmitting button hole communicating with the inner and outer sides of the housing; a light guide disposed within the light-transmitting button hole and extending to the inner side of the housing; and a switch and an LED, electrically connected to each other and respectively disposed within the inner side of the housing; wherein the light guide is at least partially located within the light area of ​​the LED to guide the light emitted by the LED to the light-transmitting button hole; the movement of the light guide within the light-transmitting button hole drives the movable part of the switch to reciprocate, thereby controlling at least the on / off state of the LED.

The invention discloses a high-precision under-voltage protection circuit, which comprises a configuration circuit and a comparison circuit, and is characterized in that the configuration circuit is used for capturing the change condition of the difference between the input voltage and the output voltage of a chip, and controlling an under-voltage threshold value by setting a compensation current; the comparison circuit is used for detecting and amplifying the difference between the input voltage and the output voltage of the chip. The under-voltage protection circuit detects a difference value between an input voltage and an output voltage and compares the difference value with a set under-voltage threshold value to realize a control function on the circuit, and when the input voltage and the output voltage fluctuate in a normal range, the under-voltage protection circuit outputs a low level; when the difference value between the input voltage and the output voltage is larger than the under-voltage threshold value, it is considered that load overload or output short-circuit grounding faults occur, the output of the under-voltage protection circuit is high level, the control circuit is switched off, and the problem of circuit damage caused by under-voltage in the using process of the analog integrated circuit is solved.

This application provides a charging control circuit, a charging system, and an electric vehicle. The charging control circuit consists of an analog circuit, including: a reverse protection module that receives and unidirectionally transmits a charger signal input from the charger signal input terminal; a signal conditioning module that receives the charger signal output from the reverse protection module and conditions it into a charging control drive signal, wherein the voltage of the charging control drive signal is lower than that of the charger signal; a charging control drive module that receives the charging control drive signal output from the signal conditioning module and conditions it into a charging control signal; and a charging control module including at least one switching device connected to the charger negative terminal and the battery negative terminal, the state of which is controlled by the charging control signal. The technical solution provided by this application reduces the risk of electric shock to users and improves the safety of the electric vehicle charging system while ensuring battery charging efficiency.

The utility model discloses a pipeline grounding device for EDI equipment, which is used for being connected with the EDI equipment, the pipeline grounding device for the EDI equipment comprises a water outlet pipeline and a buffer assembly, the buffer assembly comprises a fixed part, a sleeve, an elastic part, a valve plate, a limiting ring, a guide rod and a grounding pole, the grounding pole is arranged on the guide rod, the fixed part is provided with a containing groove, and the sleeve is arranged in the containing groove. The casing pipe is fixedly connected with the groove bottom wall of the containing groove, the valve plate is movably arranged between the casing pipe and the limiting ring, the casing pipe is sleeved with the elastic piece, the elastic piece elastically abuts against the position between the groove bottom wall of the containing groove and the valve plate, the limiting ring is connected with the groove wall of the containing groove, and a plurality of through holes are formed in the valve plate and correspond to the end wall of the casing pipe. According to the pipeline grounding device for the EDI equipment, the sleeve, the elastic piece, the valve plate and the limiting ring are arranged, and the valve plate is movably arranged between the sleeve and the limiting ring, so that connection and disconnection of the water outlet pipeline can be controlled, and the hidden danger of water hammer of the water outlet pipeline is eliminated.

The embodiment of the application provides an ammonia refrigeration system, relates to the ammonia refrigeration technical field, and comprises an ammonia preparation device and an automatic control component, the ammonia preparation device comprises an ammonia storage tank and a low-pressure circulating tank, and the outlet of the ammonia storage tank is communicated with the low-pressure circulating tank through a conveying pipeline; the automatic control component comprises a controller and at least two liquid level meters, the at least two liquid level meters are signal-connected with the controller, the at least two liquid level meters are arranged in the ammonia storage tank and the low-pressure circulating tank respectively, and the controller is used for controlling the on-off of the conveying pipeline between the ammonia storage tank and the low-pressure circulating tank according to the monitoring information of the liquid level meters. When the liquid levels in the ammonia storage tank and the low-pressure circulating tank exceed the set values of the liquid level meters, the controller can adjust the liquid levels in the ammonia storage tank and the low-pressure circulating tank, realizes automatic control, does not need manual adjustment of staff, improves the accuracy of ammonia liquid control, and improves the safety of system operation.

The invention provides a perfusion and backflow device of a medical instrument, which comprises a shell, and a cavity for accommodating a perfusion and backflow assembly is formed in the shell; the perfusion backflow assembly comprises a perfusion tube, a liquid discharge tube, a perfusion tube connecting part and a liquid discharge tube connecting part, the far end of the perfusion tube is detachably connected with the perfusion tube connecting part, and / or the far end of the liquid discharge tube is detachably connected with the liquid discharge tube connecting part; the shell is detachable so that the infusion tube and / or the liquid drainage tube can be replaced conveniently. The shell and the internal elements of the device are detachable, and the shell is convenient for a user to find and replace damaged elements in time, so that the reliability of the device is improved, and the service life of the device is prolonged.

The utility model provides deep zinc removal treatment equipment for acid mine wastewater, which comprises a treatment box and a filter box, the treatment box and the filter box can be communicated front and back, a treatment device is arranged in the treatment box to stir and treat wastewater, and a multi-stage filter device is arranged in the filter box to filter the wastewater. The wastewater is discharged after being treated by the treatment box and the filter box in sequence. By arranging the treatment box, zinc in waste water can be conveniently treated, the filter box is located on the right side of the treatment box, the treated waste water can be conveniently conveyed into the filter box to be filtered, it is avoided that the waste water is directly discharged, the surrounding environment is affected, it is guaranteed that the surrounding environment is not affected, and the treatment effect is good. And the device has high universality.

The application discloses a three-dimensional target detection and data processing system based on a meta universe, reduces the number of detection hardware devices, saves a large amount of resources, reduces CPU load, and can keep the simulated data in a virtual environment consistent with the data of human eyes and three-dimensional targets in reality. The technical scheme is as follows: the system comprises a three-dimensional detection and transmission module, which acquires information of a three-dimensional object to be identified and transmits the information of the three-dimensional object to a three-dimensional target identification module; the three-dimensional target identification module acquires an optical focal point of an eyeball at a current time; a three-dimensional detection and calculation module performs identification detection based on the information of the three-dimensional object and the eyeball data; and a data recording module stores the result of the three-dimensional detection and calculation module.