电动牙刷包装盒

电动牙刷刷头

Human body rotating table for examination in hospital radiology department

The invention relates to the technical field of medical equipment, and discloses a human body rotating table for examination in the radiology department of a hospital, which comprises a base, a first motor mounted on the inner side of the base, a rotating table arranged on the outer side of the base, a second motor mounted on the inner side of the rotating table and a lifting table arranged on the outer side of the rotating table, a screw sleeve groove is formed in the inner side of the lifting table, a screw rod is installed on an output shaft of the second motor and screwed in the screw sleeve groove, a roller is arranged on the inner side of the lifting table, and an inspection table is arranged on the outer side of the roller; the first motor drives the rotating table to rotate on the upper side of the base, so that the lifting table drives the examination table to rotate, the second motor drives the lead screw to rotate in the screw sleeve groove, the lifting table drives the examination ...

Disposable sweat detection test paper and sweat detection lactic acid, electrolyte and glucose head ring

The invention belongs to the technical field of exercise monitoring, and particularly relates to disposable sweat detection test paper and a sweat detection lactic acid, electrolyte and glucose head ring, comprising a sweat monitoring head ring which can be worn on the head during exercise and detect the collected sweat, and an adjustable head band which is matched with the sweat monitoring head ring and can be worn on the forehead, the diameter of the sweat monitoring head ring can be adjusted, the sweat detection test paper can collect natural sweat of the forehead and is matched with the sweat monitoring head ring to detect the sweat, and the sweat monitoring head ring is connected with a mobile device through a Bluetooth module and wirelessly transmits data to the mobile device. In addition, a user can set the number of times of detection and the time period in a self-defined mode according to needs and upload sweat data to a mobile phone APP or a computer in real time, and uninterrupted ...

CAPACITY CONTROL SYSTEM AND METHOD FOR SCREW COMPRESSOR CAPABLE OF SWITCHING RUNNING ROTATING SPEED AT CONSTANT FREQUENCY

A capacity control system and method for a screw compressor capable of switching a running rotating speed at a constant frequency, comprising a screw compressor (1) having a constant-frequency motor. The screw compressor (1) is provided with a bypass slide valve (8) having an adjustable capacity, and is also provided with a bypass slide valve action driver (4), a motor driver (5), a system controller (7), and a load measuring device (6); the bypass slide valve (8) is in a signal connection to the bypass slide valve action driver (4) and is controlled by the bypass slide valve action driver (4); a bypass slide valve position sensor (9) is further provided, and the bypass slide valve position sensor (9) is connected to the screw compressor (1) for measuring the position of the slide valve (8); the load measuring device (6) is configured to detect the running load state of the compressor (1); the motor driver (5) is connected to the constant-frequency compressor (1); the bypass slide valve ...

Method and device for calculating thermal stress of three-dimensional integrated circuit, storage medium and processor

The invention relates to the technical field of microelectronics, and discloses a thermal stress calculation method and device for a three-dimensional integrated circuit, a storage medium and a processor. According to the parameter information, constructing an original problem model, and converting the original problem model into a background problem model and a plurality of auxiliary sub-problem models; respectively solving the background problem model and the plurality of auxiliary sub-problem models based on a finite element method, and obtaining a thermal stress value of the three-dimensional integrated circuit based on the displacement of the background problem model and the displacement of the plurality of auxiliary sub-problem models; the original problem model is an elastic interface problem model; the background problem model is a problem model obtained by filling an interconnection line area of the original problem model with a substrate medium; the auxiliary sub-problem model ...

FALLING FILM EVAPORATOR

Disclosed is a falling film evaporator, comprising a cylinder body (1), wherein an upper distributor (3) is provided at the upper part inside the cylinder body (1), both sides of the top part of the upper distributor (3) are respectively provided with an air baffle plate (4), an edge of the air baffle plate (4) on at least one side is provided with a sawtooth part (5), the sawtooth part (5) and an inner wall of the cylinder body (1) enclose an air passage which is in communication with a gas refrigerant exit, bottom ends of two side walls of the upper distributor (3) are respectively provided with a spoiler plate (6), an upper heat exchange pipe group (7) is provided below the upper distributor (3), a lower heat exchange pipe group (8) is provided below the upper heat exchange pipe group (7), an oil-rich zone (9) is below the lower heat exchange pipe group (8), a liquid level sensor (10) is provided for the oil-rich zone (9), a signal output end of the liquid level sensor (10) is connected ...

Anchor rod static pressure pile sinking construction method for existing underground garage

The invention belongs to the field of constructional engineering, and particularly relates to an existing underground garage anchor rod static pressure pile sinking construction method which comprises the steps that 1, a prestress stay cable balance weight device is installed and comprises a stand column connecting piece, a bottom plate connecting piece and a stay cable; 2, a pile pressing reaction frame is installed; and 3, pile pressing and pile splicing are conducted. The construction method is not limited by site space, under the condition that the basement space and the floor height of the existing building are limited, a traditional pile-loading balance weight method can be replaced, adverse factors generated by the traditional pile-loading balance weight method are avoided, construction is easy, and the problem that the pile pressing counter force of the anchor rod static pressure pile in the existing building is insufficient is solved.

Existing building whole-process load-holding settlement control method suitable for dynamic deformation

The invention discloses an existing building whole-process load-holding settlement control method suitable for dynamic deformation, and aims to provide the existing building whole-process load-holding settlement control method suitable for dynamic deformation, which can adapt to dynamic change of a building foundation soil body, effectively control settlement of an existing old building and ensure that the building is in a safe and controllable state. The device comprises a servo load-holding sinking control device. The existing building whole-process load-holding settlement control method suitable for dynamic deformation comprises the following steps that (1) a servo load-holding settlement control device is installed, and the servo load-holding settlement control device is installed according to the following steps of pile sinking; mounting a steel frame, wherein the steel frame is fixed on a foundation or a bottom plate of the building; installing a hydraulic jack, and placing the hydraulic ...

Simulation test method and device, equipment and storage medium

The invention discloses a simulation test method, device and equipment and a storage medium, and belongs to the technical field of vehicles. According to the method, a virtual operation environment is created in a simulation test platform, and a first version of a domain controller program is loaded in the virtual operation environment. Based on the test requirements, creating a plurality of test scenes, and generating a plurality of test tasks matched with the plurality of test scenes; executing a plurality of test tasks in the virtual runtime environment based on the domain controller program; in response to the fact that the test results of the multiple test tasks do not meet the requirements, obtaining a domain controller program of a second version; and repeatedly executing the step of loading the domain controller program in the virtual running environment until the test results of the plurality of test tasks meet the requirements. According to the method, the domain controller program ...

Air source heat pump system

The invention belongs to the technical field of drying, and particularly relates to an air source heat pump system. An existing heat pump drying system is still high in energy consumption and still has huge potential in the aspects of energy conservation and emission reduction. The used refrigerant can cause aggravation of the greenhouse effect; the working temperature range adaptability of the drying system is not high. The invention provides an air source heat pump system which comprises a centrifugal compressor, a drying box, a wet air expansion machine, a gas-liquid separator, a drying filter and a heat exchange assembly which are sequentially connected, the drying filter is connected with the centrifugal compressor, the heat exchange assembly is connected with the centrifugal compressor, and the drying box is connected with the drying filter. The centrifugal compressor is connected with the wet air expansion machine through a main shaft, and an indicator lamp is arranged on the drying ...

Reversible continuous structure deviation rectification construction method

The invention belongs to the field of buildings, and particularly relates to a reversible continuous structure deviation rectification construction method which comprises the steps that an upper bracket is installed on a component through an upper opposite-penetrating screw rod, a lower bracket is installed on the component through a lower opposite-penetrating screw rod, and the upper bracket is located at the upper end of the lower bracket; a jack is installed between the upper bracket and the lower bracket; the jack is loaded, the jack drives the upper bracket to move upwards, the component is cut into an upper section and a lower section, and a cut opening is formed; trimming the cut-off component, and installing a heightening assembly in a cut-off opening; the upper bracket, the lower bracket and the jack are dismantled, and the upper opposite-penetrating screw and the lower opposite-penetrating screw are reserved; an upper embracing column reinforcing section is installed on the component ...

Industrial vision test rack capable of rapidly replacing test elements

The invention discloses an industrial vision test rack capable of rapidly replacing test elements, and relates to the technical field of detection instruments. The device comprises a camera adjusting assembly, a main light source adjusting assembly and a base supporting assembly, the base supporting assembly is provided with a supporting rod used for supporting the camera adjusting assembly and the main light source adjusting assembly, and the camera adjusting assembly comprises a second sliding adjusting column, a first clamping block, a second clamping block and an elastic structure. The elastic structure is arranged between the first clamping block and the second clamping block and used for limiting the distance between the first clamping block and the second clamping block, the end of the second sliding adjusting column is fixedly connected with the first clamping block, and the second sliding adjusting column is connected with the supporting rod through a connecting piece. Through ...

Configuration method for driving parameters of optical device

The invention discloses an optical device driving parameter configuration method, and belongs to the technical field of optical device equipment.The optical device driving parameter configuration method comprises the following steps that 100, a plurality of parameter sets are input into a test computer to establish a basic data set, the parameter set comprises a driving parameter for driving the optical device to generate an optical signal and a performance parameter of the optical signal; 200, the optical device to be configured is installed on the test circuit board, the test computer controls the test circuit board to write standard parameters into the optical device to be configured, whether an optical signal generated by the optical device is qualified or not is judged, if yes, the standard parameters are written into the optical device, and the optical device is taken down; if the standard parameters are not qualified, the step 300 is executed, and the standard parameters are preset ...

Prestressed anchor rod static pressure prefabricated reinforced concrete square pile and method

The invention discloses a prestressed anchor rod static pressure prefabricated reinforced concrete square pile which is composed of a prefabricated reinforced concrete square pile serving as a standard pile section, high-strength prestressed twisted steel, a pile tip section concrete square pile used for pile tip anchoring and a pile top tensioning end. When the prefabricated reinforced concrete square pile is prefabricated, a full-length reserved hole channel is reserved in the center of the section of a pile body. Compared with the prior art, the construction method has the following beneficial effects that (1) the channel is reserved, so that later-stage mounting and tensioning of the high-strength prestressed twisted steel are facilitated, the tension bearing capacity of the pile body adopting the high-strength prestressed steel is high, the number of common steel bars can be reduced, and the construction is only needed; the uplift bearing capacity of a single pile is not affected by ...

Fuel cell system

The invention belongs to the technical field of energy recovery, and particularly relates to a fuel cell system. In the prior art, only energy of gas after reaction of a fuel cell system is utilized, and internal energy in gas exhausted by a compressor cannot be utilized. The invention provides a fuel cell system which comprises a turbine, the turbine comprises a compression wheel, a main shaft, a moist air expansion wheel and a motor/generator which are connected in sequence, and the motor/generator is matched with the main shaft; the wet air expansion wheel, the water separator, the heat exchanger and the fuel cell are sequentially connected, the compression wheel, the heat exchanger, the air cooler and the air dryer are connected with the fuel cell, an electromagnetic valve is arranged between the turbine and the air dryer, and a three-way electromagnetic valve is arranged among the turbine, the water separator and the heat exchanger. High-temperature air at the outlet of the compressor ...

Fresh air proportion control method for air conditioning system of electric vehicle

The invention discloses a fresh air proportion control method for an air conditioning system of an electric vehicle, which comprises the following processes: when an air conditioner starts to start, a ventilation system runs in a full internal circulation mode, and the CO2 concentration in the vehicle is monitored in the running process; when the air conditioning system is under the refrigeration working condition, the ventilation proportion is calculated according to the CO2 concentration, ventilation modes are switched according to the ventilation proportion, and the fresh air proportion of the air conditioning system is adjusted; when the air conditioning system is in the heating working condition, the ventilation proportion is calculated according to the CO2 concentration and the glass fogging constraint, the ventilation modes are switched according to the ventilation proportion, and the fresh air proportion of the air conditioning system is adjusted. The fresh air proportion can be ...

Heat dissipation device for computer hardware

The utility model discloses a heat dissipation device for computer hardware, which belongs to the technical field of heat dissipation devices for computer hardware and comprises a mainframe box side plate, the mainframe box side plate is a part of a computer mainframe box and is provided with heat dissipation holes, a connecting plate is fixedly mounted on the mainframe box side plate, and a sliding groove is formed in the connecting plate. The fixing frame is connected into the sliding groove in a sliding mode, the dustproof gauze element is fixedly connected into the fixing frame, the pull ring is fixedly connected to the upper portion of the fixing frame, the face, close to the main case side plate, of the fixing frame is fixedly connected with the dustproof sponge, and the fixing mechanism is arranged above the side edge of the fixing frame. Time and labor are saved.

Ultra-narrow linewidth laser system

The invention discloses an ultra-narrow linewidth laser system, which relates to the field of ultra-narrow linewidth laser, and is characterized in that a beam splitting module, an electro-optical modulator, an adjusting module, a quarter-wave plate and an optical reference cavity are sequentially arranged in the system; the beam splitting module is arranged on a laser output light path of the laser; laser generates a reflected light beam and a transmitted light beam through the beam splitting module; the electro-optical modulation module is used for performing phase modulation on transmitted beams; the adjusting module is used for adjusting the optical power coupled into the optical reference cavity; transmission light of the adjusting module enters the optical reference cavity through the quarter-wave plate; reflected light and transmission light of the optical reference cavity sequentially pass through the quarter-wave plate, the adjusting module and the photoelectric detector; the electro-optical ...