21results about How to "Little external interference" patented technology

The utility model relates to the technical field of shielding cases, and discloses an electric connector shielding case, which comprises a connector body, a first shielding case and a second shielding case are respectively and movably sleeved on the surface of the connector body, and a dismounting mechanism is arranged between the first shielding case and the second shielding case. According to the electric connector shielding case, when the shielding case is damaged and needs to be replaced, an operator can quickly separate the first shielding case from the second shielding case only by pushing the push rod without complicated tools and tedious operation steps, so that the replacement time is greatly shortened, and the practicability of the device is improved; according to the electric connector shielding case, the requirement for convenience of maintenance and replacement of the shielding case in an actual use scene can be better met, meanwhile, through the combination of the first shielding case and the second shielding case, the internal electric connector can be effectively protected, external interference is reduced, stable operation of the electric connector is maintained, and the basic function advantages of the electric connector shielding case are continued.

The utility model relates to the technical field of automobile suspension systems, in particular to an automobile suspension bearing friction torque detection device, which comprises a machine body, a servo motor, a speed reducer, a rotating shaft, a screw rod, a handle, a loading spring, an axial pressure sensor, a placing device and a measuring device. Radial and axial loads are borne through the suspension bearing, external interference is greatly reduced, and particularly, the influence of the friction torque of the measuring device on the friction torque detection of the suspension bearing is eliminated, so that the final detection value is real and reliable, the detection condition is close to the actual working condition, the detection value is real and reliable, and the practicability is high; the friction performance of the suspension bearing can be well evaluated, and an effective suspension bearing quality control means is provided for suspension bearing manufacturers; the design of simultaneous detection of the two sets of suspension bearings can eliminate the influence of the rotating shaft on the friction torque detection, and guarantees the detection precision of the friction torque.

The invention discloses a cooling device for efficient heat dissipation of a gearbox, and relates to the technical field of transmission devices. The radiator fan is rotatably mounted in the radiator main frame and is rigidly connected with the fan motor; one side of the cooling fan is provided with a cooling pipeline which is connected with a temperature control valve, and the other side of the cooling fan is provided with a cooling plate; an air inlet of the radiator is provided with an anti-flocculation net, and an air outlet of the radiator is provided with an air duct which is communicated with the cabin; the heat dissipation plates are of an integral aluminum magnesium alloy structure. The cooling pipeline is a double-layer high-elasticity fiber and steel wire winding rubber pipe; the temperature control valve is of a spring pressure type; the anti-flocculation net comprises an aluminum alloy frame and a diamond net; the surface of the radiator is coated with a graphene-containing coating; the ventilating duct and the exhaust hood are made of military silica gel coating glass fiber cloth; the cooling fan and the like form a penetrating type heat exchange core body; a reinforcing lifting lug is arranged on the main frame; the cooling capacity is guaranteed, the operation stability of the gearbox is improved, and the service life is prolonged.

The utility model discloses a kind of textile steel ring raw material automatic punch forming machine, including base, the top of the base is provided with roof rack, the base is connected with roof rack by multiple supports, the base and roof rack are commonly provided with punch forming equipment main body, the upper end of the base is provided with conveyor belt, the lower end of the roof rack is fixedly connected with hydraulic rod, the elongation end of the hydraulic rod is fixedly connected with device cylinder, the inner wall of the device cylinder is fixedly connected with detection device, the upper end of the device cylinder is provided with adjusting device, the side wall of the support at corresponding position is fixedly connected with fixed frame, the side wall of the fixed frame is fixedly connected with control panel. The utility model has the advantages that it is convenient for operators to operate and detect the damage of steel ring, and avoids damaging the equipment.

The application belongs to the field of CT internal temperature control, in particular to a CT internal temperature control and steam water replenishment test device, which comprises a base, a pedestal is installed on the top of the base, a soil sample mold main body is installed on the top of the pedestal, a PVC heat preservation film is detachably connected to the outside of the soil sample mold main body, a temperature control box is arranged on one side of the top of the base, and a bottom plate is installed on the bottom of the pedestal; the water source is filtered through the filter frame, the harmful substances in the water are adsorbed through the activated carbon in the installation box, the impurities in the water are prevented from affecting the quality of the subsequent supplemented steam, the filter frame can be repeatedly cleaned through the brush plate, the impurities above the filter frame are knocked and shaken off through the high-frequency knocking of the knocking rod, then the impurities fall into the storage box through the discharge port to complete the collection, the problem that the filtering effect is easily affected due to too much accumulated impurities after the filter frame is used for a long time is effectively avoided, manual cleaning is not needed frequently, and the labor burden of the workers is effectively reduced.

The utility model relates to the technical field of medical equipment, and particularly discloses an oral cavity CT medical vehicle which comprises a vehicle head and a compartment. The vehicle head is mounted in front of the compartment; a first compartment and a second compartment are arranged in the compartment, the first compartment and the second compartment are arranged side by side, and the first compartment is communicated with the second compartment through a movable door; the first compartment is close to the rear part of the carriage, and the second compartment is close to the front part of the carriage; an outlet is formed in the rear of the compartment; a center console is arranged in the first compartment, a vertical oral cavity CT instrument is arranged in the second compartment, and the vertical oral cavity CT instrument is controlled by the center console. According to the medical compartment, examination equipment and an operation area are integrated into a whole, so that the turnover time of a patient among different examination places is shortened, oral CT examination can be quickly completed, the patient can obtain a diagnosis result more quickly, follow-up treatment can be carried out in time, and illness state delay is avoided.

The utility model provides a track vibration isolation mat simulation detection device, including a plurality of elastic support components, lower basic simulation board, track board simulation board, vibration loading mechanism and vibration acceleration sensor, the vibration isolation mat sample of waiting for detecting is arranged between lower basic simulation board and track board simulation board, therefore can simulate actual vibration isolation mat floating plate track structure well, and the vibration isolation mat performance that detects obtains is very close to its performance in actual track, has very good reference value. Besides, through setting a plurality of elastic support components below lower basic simulation board, and setting vibration acceleration sensor on it, can take the vibration energy that vibration loading mechanism loads as input energy, take the elastic potential energy of elastic support component that vibration acceleration sensor detects as output energy, and evaluates the performance of vibration isolation mat based on input energy and output energy, compares with the traditional track lower basic vibration level difference method more intuitive and simple.

The application belongs to the technical field of tunnel engineering detection, and discloses a tunnel displacement simulation device and a detection calibration method, which comprises multiple groups of tunnel simulation units, the multiple groups of tunnel simulation units are sequentially spliced, each group of tunnel simulation units comprises two groups of arches, a support steel frame and a plurality of groups of telescopic pipe piece assemblies; the two groups of arches are oppositely arranged, the support steel frame is in a semicircular arc support structure and is arranged between the two groups of arches; the plurality of groups of telescopic pipe piece assemblies are arranged on the support steel frame and are sequentially arranged along the arc surfaces of the two groups of arches, wherein the adjacent telescopic pipe piece assemblies are connected, and the plurality of groups of telescopic pipe piece assemblies can simultaneously expand and contract along the radial direction of the two groups of arches and are used for simulating the profile range between the maximum profile and the minimum profile of the tunnel. The application can realize the simulation of the dynamic continuous deformation of the tunnel, does not need manual comparison of the scale, reduces the error caused by manual operation and lays a structural foundation for high-precision calibration.

This utility model discloses a double-layer piezoelectric sound acquisition device for pipeline leak detection, comprising an outer cylinder, an inner cylinder, an adjustment mechanism, a double piezoelectric structure, and a acquisition body. The acquisition body is disposed inside the outer cylinder. The bottom side of the outer cylinder is open, and a receiving cavity is formed inside the outer cylinder. The inner cylinder and the adjustment mechanism are both disposed within the receiving cavity. The adjustment mechanism is located on the side of the inner cylinder away from the open, and the adjustment mechanism is driven and connected to the inner cylinder. A detection cavity is formed inside the inner cylinder, and a acquisition port communicating with the detection cavity is opened on the side of the inner cylinder away from the adjustment mechanism. The double piezoelectric structure is disposed on the side of the receiving cavity away from the acquisition port, and the double piezoelectric structure is electrically connected to the acquisition body. The adjustment mechanism is used to drive the inner cylinder to move towards the open, so that the acquisition port of the inner cylinder abuts against the ground near the open. In the technical solution proposed by this utility model, the adjustment mechanism drives the inner cylinder to abut against the ground through the open, ensuring that the acquisition port of the inner cylinder is always in contact with the ground when acquiring audio, thus guaranteeing accurate acquisition of sound wave data.

This invention provides a six-degree-of-freedom simulator for low-gravity landing cushioning, comprising a landing leg assembly, a frame, an IMU, an air-bearing ball bearing, and a connecting column forming an attitude control platform and a translational platform. Four landing leg assemblies are evenly arranged on the frame. An air-bearing ball bearing is located in the middle of the frame, with an IMU mounted above it. The lower part of the air-bearing ball bearing is connected to the translational platform via the connecting column. A control component is also provided on the frame, and the landing leg assemblies and IMU are connected to the control component. The planar air cushion of the translational platform is used for support on a simulated tilting platform, and the landing leg assemblies act on the simulated landing surface. This invention can record attitude changes and the force and torque values ​​of the landing legs during landing, and compare the experimental data with simulation results from a full-physics simulation test.

The application discloses a landfill methane long-term monitoring static box device and method, and relates to the technical field of landfill methane emission monitoring. The device comprises a bottom-opened box, a gas conveying unit, a gas mixing unit, a one-way low-pressure pressure relief valve, a detection module, a power supply unit and a control system. The method comprises a deployment, initialization and monitoring stage, and can calculate the methane emission rate by automatically injecting air, mixing gas, collecting data and transmitting. The device and method realize automatic and long-term continuous monitoring, synchronously acquire multi-dimensional parameters, improve monitoring efficiency and data continuity, solve the problems of traditional static boxes, such as dependence on manual operation and single data dimension, and provide data support for emission reduction strategies.

The utility model discloses a surface moisture -resistant treatment device of cold chain transportation packaging carton relates to surface moisture -resistant treatment device technical field, the surface moisture -resistant treatment device of cold chain transportation packaging carton includes the support air -dry mechanism, and the paper box conveying device is installed on the support air -dry mechanism upper end, the moisture -resistant treatment device is installed on the paper box conveying device, the utility model discloses, when using, the upper spray head pipeline, side spray head pipeline, lower spray head pipeline cooperate rectangular array atomizing spray head, and the surface of paper box is covered from multidimensional, and the moisture -resistant liquid is evenly sprayed, and the problem that uneven processing of manual or simple equipment is solved, and the consistency of paper box moisture -resistant performance is guaranteed.

The utility model discloses a single-chip microcomputer watchdog circuit with a controllable period, and relates to the field of electronic circuits. Comprising a dog feeding circuit and a reset circuit, the dog feeding circuit comprises an input circuit and a counting circuit, the input circuit suppresses interference through RC filtering and diode clamping, the counting circuit adopts a 74LS161DC counting chip and is matched with an active crystal oscillator U2 and a control button with preset data to realize controllable period, and a counting space can be expanded in a cascading manner. The reset circuit is composed of a triode Q1, an SP708SEN voltage detection chip U3 and a manual reset circuit, the auxiliary power supply is connected to a voltage fault input pin of the U3, meanwhile, reset signals are transmitted to the input circuit at the same time, and the reset circuit has the functions of signal processing, voltage monitoring and synchronous reset. The circuit solves the problems that a traditional watchdog circuit is fixed in period, insufficient in interference resistance and the like, and has the advantages of being flexible and controllable in period, high in anti-interference capacity, capable of achieving multiple protection and convenient to maintain due to the modular design.

The utility model discloses a kind of cutting machine auxiliary positioning structure, belong to auxiliary positioning structure field, including base and the positioning mechanism assembled above base, and the cutting mechanism assembled below base.The utility model is set through positioning mechanism, the sliding design of movable plate in rectangular groove can adhere to one end of workpiece, cooperate spring drive movable rod, can self-adapting resist different shape workpiece, ensure that workpiece is resisted in movable rod in cutting process one side, the combination of spring and buffer rod effectively drives movable rod reset after cutting, it is convenient for next use, first hydraulic rod drives horizontal plate to press down limit column, can quickly lock movable rod position, realize automatic clamping, to make the one side of workpiece be resisted on movable rod, at this time, only need staff to fix the other side of workpiece, increase the stability when workpiece cutting, reduce the instability of two hands fixed workpiece on base, while saving manual adjustment time.

A novel vehicle dust sensor relates to the technical field of vehicle sensors and comprises an upper cover, a shell, a base, an air inlet pipe, an exhaust pipe, a PCB (printed circuit board), an inner cover, a light emitting pipe and a light receiving pipe, the shell is arranged below the upper cover, the base is arranged below the shell, the air inlet pipe and the exhaust pipe are respectively arranged at two ends of the base, and the PCB and the inner cover are sequentially arranged between the upper cover and the shell from top to bottom. A light-emitting tube and a light-receiving tube which are electrically connected are arranged below the PCB, the light-emitting tube and the light-receiving tube both extend downwards to penetrate through the inner cover to be arranged in the shell, and a light path area is arranged in the shell. According to the utility model, the air inlet duct and the air outlet duct matched with the light path area are arranged in the base, so that air can be injected into the light path area, and the detection efficiency is improved; through the light emitting tube, the first lens, the light receiving tube and the second lens which are arranged in the light path area in a matched mode, injected air is rapidly detected, the dust concentration in a vehicle is detected through signal changes generated through light refraction, external interference is reduced, and the detection efficiency, data and precision are improved.

The invention relates to the technical field of audio regulation and control, in particular to a motion state self-adaptive audio regulation and control system based on G-Sensor and a use method, and the system comprises a data acquisition module, a motion state recognition module, an audio regulation and control module and a main control module; the method further comprises the steps of S1, data acquisition and preprocessing; step S2, feature extraction; s3, classification decision making, wherein classification decision making is divided into three stages of M1, M2 and M3; and S4, audio regulation and control, wherein the audio regulation and control process is divided into three stages of N1, N2 and N3 in parallel. According to the method and the system, the use scene can be adaptively matched without manual intervention of a user, so that a tedious manual operation process is avoided, the accuracy of state detection is improved by relying on multi-dimensional data support, and the intelligent adaptation capability of equipment is comprehensively optimized. On one hand, external interference in the movement process is effectively reduced, clear and stable tone quality is guaranteed, on the other hand, battery energy consumption is reduced, the endurance time of equipment is greatly prolonged, and the use experience of a user is remarkably improved.

The utility model discloses a kind of detection devices for detecting single finished product FPC soft board, clamping mechanism is composed of upper clamping plate, middle clamping plate and lower layer material supporting bottom plate, realize three-layer board through dowel positioning connection and synchronous fixation;Detection main part, is carried on FPC detection equipment, surface is equipped with the positioning hole of avoiding corresponding with clamping structure;Fine adjustment mechanism, integrated in detection main part, provide four directions adjustable gear;The upper clamping plate and middle clamping plate of the clamping structure are in convex character structure, fixed after being combined through magnetic attraction component and antistatic adhesive tape.The device is optimized through structure and detail design, realizes to single finished product FPC soft board efficient, accurate, stable detection, with good durability and convenient operation.

The application discloses a kind of thin film thermocouple line homogeneity test methods based on laser scanning heating, belong to thin film thermocouple field, comprising: the thin film thermocouple single branch to be tested is manufactured on insulating substrate, obtains thin film thermocouple branch;High-precision positioning laser is applied as transient heat source to the edge of thin film thermocouple branch, laser beam is moved and laser transient scanning is carried out along thin film thermocouple branch, local area of thin film thermocouple branch is heated, and non-steady temperature field is formed, and the thermoelectric output signal fluctuation data of the two ends of thin film thermocouple branch is collected;The homogeneity precision of thin film thermocouple branch is calculated using the data.The application adopts non-contact measurement, reduces external interference, ensures the accuracy and reliability of homogeneity test process;The application has high sensitivity and local response capability, and test process is fast and efficient, significantly shortens experimental period, reduces test cost, improves the efficiency of laboratory and industrial application simultaneously.

The utility model discloses a motorcycle head tube, which belongs to the technical field of motorcycles, and comprises a head tube body, the upper end and the lower end of the head tube body are rotatably connected with two groups of arc-shaped hoops, the two groups of arc-shaped hoops correspond to each other, each group of arc-shaped hoops comprises two arc-shaped hoops, and the inner surface of each arc-shaped hoop is fixedly connected with a limiting clamping strip. A connecting rod is fixedly connected between the two arc-shaped hoops in each set, the two connecting rods are located on the outer side of the bicycle head pipe body, rotating sleeves are rotationally connected to the two connecting rods, clamping fingers are fixedly connected to the circumferential surfaces of the two rotating sleeves and are arranged in a staggered mode, and limiting blocks are fixedly connected to the circumferential surface of the bicycle head pipe body; the two clamping fingers are matched with the limiting block; according to the utility model, the threaded structure between the threaded pipe and the locking nut can be always kept in a required locking state and is not easy to loosen, so that the service life of the steering system of the motorcycle is guaranteed.

This utility model relates to the field of landslide monitoring and early warning technology, and discloses a multi-layer sliding surface landslide monitoring and early warning device. The device includes a base with a through-hole at the center of the top of the base, a bracket installed on the top, and a fixed column fixedly connected to the top of the bracket. A multi-layer sliding monitoring mechanism is provided on the surface of the base and the bracket. An automatic tracking power supply mechanism is provided on the top of the fixed column, and an audible and visual alarm mechanism is provided on the surface. The monitoring mechanism drives the drill rod to drill into the soil through a hydraulic cylinder. It uses fiber optic displacement sensors, acceleration sensors, and soil moisture sensors to monitor the landslide status from multiple dimensions. A honeycomb permeable protective cover and other structures ensure the stable operation of the sensors. The automatic tracking power supply mechanism adjusts the orientation of the solar panel through a photosensitive sensor and a servo control motor to improve charging efficiency. The audible and visual alarm mechanism emits audible and visual signals when the monitoring data reaches the early warning threshold. This device can realize real-time monitoring of multi-layer sliding surfaces, has a long-lasting power supply, and provides timely early warning, making it suitable for field landslide monitoring.