211results about How to "Weakening range" patented technology

An electric power assisted steering assembly comprises a steering mechanism which operatively connects a steering wheel to the roadwheels of a vehicle, a torque sensing means adapted to produce a first output signal indicative of the torque carried by a portion of the steering mechanism, a means for producing a second output signal indicative from a signal indicative of the angular velocity of the portion of the steering mechanism, an electric motor operatively connected to the steering mechanism, a signal processing unit adapted to receive the two output signals and to produce therefrom an overall torque demand signal representative of a torque to be applied to the steering mechanism by the motor, and a motor drive stage adapted to provide a drive current to the motor responsive to the torque demand signal. The overall torque demand signal includes a damping component that is dependent upon the second output signal. The means for producing the yaw damping component includes a filter having one pole and one zero, and in use the second signal is passed through the filter to produce the damping component, the frequency of the pole and zero being selected such that the filter provides a band between the pole and zero within which the phase of the filtered second signal and the velocity signal are further out of phase or in phase than within the band.

The invention discloses a ship classification method based on multi-source information feature level fusion, and the method comprises the steps: firstly obtaining the HRRP and SAR original radar data of a ship target, carrying out the preprocessing of the HRRP original radar data, and generating two formats of HRRP samples; secondly, performing feature extraction on the HRRP sample in the first format to form traditional features; secondly, constructing a sequential network model branch, taking an HRRP sample in a second format as input, embedding a traditional feature, and outputting a mixed feature; a two-dimensional convolution model branch is constructed, SAR original radar data passes through a lightweight CNN network, and ship target structure features are extracted. And finally, designing a feature fusion module of an attention weighting mechanism, carrying out weighted fusion on the mixed features and ship target structure features, and outputting a ship classification result. According to the method, the problem that automatic target radar recognition is limited in recognition precision and performance based on single-modal data is solved, and the classification accuracy is improved.

The invention relates to the technical field of high polymer materials and preparation thereof, and discloses a wet anti-slip bionic friction pad on a glass surface, which is inspired by a micro-nano structure of toe pads of organisms such as tree frogs and long-horned grasshoppers with wet friction increasing characteristics, and a bulge array is added on the surface of a high-friction material, so that the friction coefficient of the friction pad is increased; the microstructure arrays can discharge a water film on the surface of the friction pad under the capillary action in a wet environment, and the effective contact area between solids is increased, so that the friction pad and a friction surface are always kept in a dry friction state, and stable friction force is ensured. The friction pad comprises a connecting layer, a supporting layer and a tail end protruding straight column array, a tail end contact layer is in a hexagonal straight column shape, the diameter of an inscribed circle of a hexagonal micro-column structure ranges from 5 micrometers to 5000 micrometers, column bodies are densely arranged in a hexagonal mode, the height of the column bodies ranges from 10 micrometers to 1500 micrometers, the tail ends of the column bodies are planes, the interval between every two column bodies ranges from 2 micrometers to 600 micrometers, and tight drainage grooves are formed.

The invention discloses a communication network power distribution cabinet convenient for heat dissipation, and relates to the technical field of power distribution cabinets, and the power distribution cabinet comprises a composite mechanism. According to the communication network power distribution cabinet convenient to dissipate heat, through the design of a composite mechanism, the box body shell is used for storing electronic components, after long-time operation, the temperature in the box body shell rises, hot gas rises, and then the hot gas flows to the processing mechanism from the circular groove, so that the heat dissipation effect is achieved, and the internal temperature of equipment is reduced; the ventilation mechanisms are arranged on the two sides of the box body shell, so that the convection effect is achieved, the cold air flowing effect is improved, the cold air is located at the low position with the high density, hot air is squeezed upwards after entering the box body shell, the discharging speed is increased, and the heat dissipation efficiency is improved. The box body shell is supported through the supporting assembly, so that the effect of reducing deformation of the box body is achieved, and internal electronic elements are protected.

The invention belongs to the technical field of open caisson construction, and particularly discloses a large press-in type rectangular open caisson structure deviation rectifying construction method which comprises the steps that a plurality of monitoring points are arranged on the two long side portions of a rectangular open caisson; the rectangular open caisson continuously sinks into the side sinking channel; acquiring an elevation value between each monitoring point and the port of the side sinking channel in real time; whether the rectangular open caisson needs to be rectified at the current moment or not is judged according to the difference value of the elevation values between the monitoring points; respectively drawing elevation curves of the two long side parts according to the elevation value at the current moment; according to the elevation curve, determining the adjustment amount required for correcting the rectangular open caisson, adjusting the postures of the two long side parts through the adjustment amount, and updating the elevation curve in real time; the method has the following advantages that accurate control over the rectangular open caisson is achieved through real-time monitoring and deviation rectification in the sinking process, the method adapts to complex projects such as underground stations and pipe galleries, the construction efficiency is improved, manual dependence is reduced, meanwhile, the urban environment is effectively protected, and surrounding influences are relieved.

A flywheel front cover and a flywheel rear cover are buckled to form a vacuum spherical shell, front-end electromagnetic poles are evenly distributed on the inner side of the flywheel front cover, rear-end electromagnetic poles are evenly distributed on the inner side of the flywheel rear cover, permanent magnet magnetic poles are evenly distributed on an outer hub of a flywheel, and permanent magnet magnetic poles are evenly distributed on an inner hub of the flywheel rear cover. When a ship jolts and shakes due to the influence of storm waves or ocean currents, the flywheel rotates at a high speed in the vacuum spherical shell in the left-right direction of the flywheel shaft, large rotational inertia is generated when the flywheel rotates at the high speed, and through energy transmission of the right side supporting damping cylinder, the left side supporting damping cylinder, the right side supporting damping cylinder rod and the left side supporting damping cylinder rod, the flywheel can rotate at the high speed. The energy for driving the vacuum spherical shell to swing left and right and horizontally is consumed, so that the rolling amplitude and frequency of the ship are greatly reduced, the course stability is improved, and the rolling amplitude and frequency of the ship can be reduced.

The invention discloses a bag filter for tail gas of a rotary kiln, the bag filter comprises a cylinder, a filter bag and a conical hopper, the bottom of the conical hopper is connected with a gas inlet and dust discharge assembly, the gas inlet and dust discharge assembly comprises a header pipe communicated with the conical hopper, the header pipe extends into a kiln cover, and one end of the header pipe positioned in the kiln cover is communicated with a diversion branch pipe; rectifying plates are obliquely arranged at the connecting parts of the header pipe and the diversion branch pipes. According to the bag type filter, the air inlet dust discharging assembly is arranged between the conical hopper and the kiln cover, the filter is directly communicated with the kiln cover under the combined action of the main pipe, the rectifying plate and the flow guide branch pipe, the distance between the bag type filter and a rotary kiln can be avoided, part of components in tail gas can be prevented from being condensed into liquid, and blockage of an inlet pipeline and a filter bag is avoided; the negative pressure occurs in the inlet pipeline and the filter, and the filter cleans dust to cause the abnormal phenomenon that the pressure pulsation amplitude in the kiln cover is large, so that the output rate, safety and reliability of equipment can be improved, and the life cycle cost of the equipment is reduced.

The invention discloses a dynamic frequency adaptive automatic gain control system, which belongs to the field of dynamic frequency adjustment and comprises a radio frequency power amplifier, an attenuator, a logarithmic detector, a low-pass filter and a comparison and control signal generation module. The amplified radio frequency signal is input into the attenuator; the attenuator attenuates the signal so that the input radio frequency signal reaches a range suitable for detection of the logarithmic detector after attenuation; the logarithmic detector converts the radio-frequency signal into a direct-current voltage proportional to the signal power; voltage signals of direct-current voltage output by the logarithmic detector are smoothed through a low-pass filter, and rapidly changing components are removed; and the comparison and control signal generation module compares the smoothed voltage with a reference voltage, generates a control signal for adjusting the gain, and adjusts the gain. According to the invention, instant gain adjustment is provided under the condition of rapidly changing signals, and the energy efficiency of the system is improved.

The invention discloses an intelligent hysteroscope liquid management system and a fluctuation suppression method thereof, and relates to the technical field of medical equipment liquid management. According to the intelligent hysteroscope liquid management system and the fluctuation suppression method thereof, a liquid fluctuation detection module, a dynamic fluctuation compensation control module and a fluctuation suppression module are arranged, liquid pressure and flow data in a uterine cavity and in an infusion pipeline are collected, frequency domain and time domain analysis technologies are combined, liquid fluctuation characteristics are extracted, and a dynamic characteristic model is established. Based on the fluctuation characteristic model, the liquid fluctuation index is calculated in real time, the flow speed of the infusion pump and the opening degree of the return valve are dynamically adjusted through a self-adaptive control algorithm, and therefore effective compensation and suppression of liquid fluctuation are achieved. Meanwhile, through the flexible damping assembly, high-frequency fluctuation in the liquid transmission process is absorbed on the physical level, and the fluctuation restraining effect is further optimized. The liquid management precision in hysteroscopic surgery can be remarkably improved, surgical operation interference caused by liquid fluctuation is reduced, and the stability of the surgery is guaranteed.

The invention discloses a power transmission line anti-galloping phase-to-phase spacing device, which belongs to the technical field of power transmission lines, and is characterized in that two connecting plates, two connectors, two cross universal joints and two rod type composite insulators are arranged between two adjacent six-split damping spacers; each connecting plate is connected with a cross universal joint through a connector, and the cross universal joints are further connected with the ends of the rod type composite insulators. A hydraulic shock absorber is arranged in the middle of the two rod type composite insulators; a damping ball is arranged in the center of a triangle formed by the rod type composite insulators; an outer viscous damper, a first connecting rod and a second connecting rod are arranged between the hydraulic shock absorber and the damping ball; the first connecting rod and the second connecting rod are connected to the two sides of the outer viscous damper respectively, the damping ball is connected with the first connecting rod, and the hydraulic shock absorber is connected with the second connecting rod through the connecting ferrule. The problems that in the prior art, under the long-time line use condition, wires are damaged, the safety of a power transmission line is affected, and cost is high are solved.

The invention relates to the technical field of wall bushings, in particular to a wall bushing which comprises an insulating bushing, a mounting cylinder is fixedly mounted on the periphery of the insulating bushing, and a plurality of mounting grooves parallel to the axis of the mounting cylinder are formed in the middle of the periphery of the mounting cylinder; an abutting mechanism is mounted in the mounting groove and comprises a supporting assembly arranged in the mounting groove, and the supporting assembly is fixedly connected with an abutting assembly; a second adjusting ring and a first adjusting ring are mounted on the periphery of the mounting cylinder, meshing teeth are arranged on the periphery of the first adjusting ring, and a plurality of containing grooves are further formed in the periphery of the mounting cylinder; and a transmission assembly is arranged in the placing groove. According to the invention, the installation between the sleeve main body and the side plate hole can be completed only by rotating the adjusting ring II, so that the installation complexity and the man-hour cost are reduced; and the design of a vibration reduction type elastic supporting structure of a supporting assembly in the abutting mechanism can absorb and disperse vibration energy, and the safety and stability of the wall bushing in long-term use are improved.

The invention provides a nursing bed convenient for a patient to trigger a pager, and relates to the field of medical pagers, the nursing bed comprises a signal control assembly, the signal control assembly is composed of a signal pager, an adjusting assembly, a positioning assembly and an auxiliary calling assembly, the signal control assembly can call through a pressing switch on a wearing ring worn on a finger of a patient and can be realized through a fine pressing action of a hand, and the bed body assembly has a function of adjusting the use height, can adapt to nursing of patients with different body types, is convenient for the patient to get in and out of the bed, and is convenient to use. The problems that for a patient who is heavier in illness state or limited in limb movement, it is difficult for the patient to press a button of a signal beeper to achieve calling operation, a bed body cannot adapt to nursing of patients of different body types, and when the patient gets out of the bed, the feet of the patient cannot make contact with the ground possibly and fall down easily are solved.

The invention relates to the technical field of medical equipment, in particular to an intelligent anorectal drug delivery system. Comprising a conveying pipe, a medicine conveying pipe and a convex-point air bag; comprising a guide tube and an imbedding part for supporting the air bag; a power unit; an image acquisition unit; a resistance acquisition unit; when it is judged that the preset air pressure of the supporting air bag does not meet the supporting preset standard, the preset air pressure of the supporting air bag is reduced; preliminarily judging whether the conveying of the conveying pipe meets a preset standard or not based on the resistance of the power wheel; when it is secondarily judged that conveying of the conveying pipe does not meet the preset standard based on the resistance fluctuation frequency of the power wheel, the driving speed of a first driving motor and the driving speed of a second driving motor are reduced; and the control unit is used for increasing the volume of the bump air bag and judging whether the administration process of the administration part meets the preset administration standard or not according to the target area drug coverage rate when judging that the volume of the bump air bag does not meet the preset standard according to the contact threshold value, so that accurate and quantitative administration of the administration system is realized.

The invention provides an energy storage system configuration method and system, a storage medium and equipment. The method comprises the steps of determining configuration parameters of an energy storage system according to parameters of a power system, including determining an energy storage frequency modulation coefficient, active power and energy required to be configured by the energy storage system; the step of determining the energy storage frequency modulation coefficient required to be configured by the energy storage system comprises the substeps of calculating a maximum power fluctuation frequency modulation coefficient, a synchronous unit frequency modulation coefficient and a transient attenuation frequency modulation coefficient of the power system; and establishing an energy storage converter control strategy based on the energy storage system configuration parameters and known operation data. According to the energy storage system configuration method, the out-of-limit range of the transient frequency of the power system is reduced, and the controllability of transient output of the energy storage system is improved.

The invention provides a device for limiting windage yaw galloping of a high-altitude power transmission line and a use method, and relates to the technical field of high-altitude power transmission lines, the device architecture comprises a line suppression module, a data monitoring and processing module, a data co-processing module, a line repair module, a pulse type air injection device and a plasma flow generator, a dynamic change magnetic field can be generated to counteract the windage yaw acting force by regulating and controlling the magnetic field of the superconducting coil and intelligently distributing the magnetic material; meanwhile, the miniature crawling robot and the flying micro-robot cluster can quickly respond when the sensor detects that the line or the windage yaw preventing device is damaged, the miniature crawling robot can crawl on the surface of the power transmission line to check and repair local damage, and the flying micro-robot cluster can deal with large-area damage or damage of multiple parts; the possibility and amplitude of windage yaw galloping are reduced from the source, the reliability of power transmission is improved, and windage yaw galloping is effectively inhibited.

A longitudinal sealing mechanism of a multi-row strip bag back sealing packaging machine comprises a collar turning device, a front longitudinal sealing mold and a rear longitudinal sealing mold, the collar turning device and the rear longitudinal sealing mold are fixed on a machine body of the packaging machine, and the longitudinal sealing mechanism is characterized in that the front longitudinal sealing mold comprises a cross beam and a plurality of pressing blocks evenly distributed on the inner side of the cross beam; the pressing blocks are obliquely mounted on the inner side of the cross beam and are in one-to-one correspondence with the oblique pressing surfaces on the outer sides of the forming holes; opening and closing air cylinders are symmetrically arranged on the inner side of the machine body, and one end of a piston rod of each opening and closing air cylinder is connected with two symmetrically-arranged supporting bases through a connecting plate and at least two sets of guiding assemblies. A driving shaft driven by a servo motor is arranged on the inner side of the machine body, eccentric shafts are rotatably installed in the two supporting seats respectively, the two ends of the driving shaft are in transmission connection with the corresponding eccentric shafts through double-crank mechanisms respectively, and the two ends of the cross beam are connected to eccentric sections of the eccentric shafts respectively. The longitudinal sealing device has the advantages of being stable in action, small in amplitude, even in sealing pressure and good in longitudinal sealing performance.

The invention relates to the technical field of sensor signal processing, in particular to a vibrating wire sensor anti-interference circuit and device, and the circuit comprises an interference suppression circuit, a differential amplification circuit, a clamping circuit, a low-pass filter circuit, a zero cross detection circuit and a processing module. The input end of the interference suppression circuit is used for being connected with a vibrating wire sensor, the output end of the interference suppression circuit is connected to the input end of the differential amplification circuit, the output end of the differential amplification circuit is connected to the input end of the clamping circuit, the output end of the clamping circuit is connected to the input end of the low-pass filtering circuit, and the output end of the low-pass filtering circuit is connected to the input end of the vibration wire sensor. The output end of the low-pass filter circuit is connected to the input end of the zero-cross detection circuit, and the output end of the zero-cross detection circuit is connected to the processing module. According to the invention, interference signals can be removed so as to obtain accurate signals to be detected.

The invention discloses a DPD feedback signal gain compensation method and device, a medium and a product, and relates to the technical field of communication. The method comprises the following steps: after an original signal is amplified to form an amplified signal, carrying out sampling and analog-to-digital conversion processing on the amplified signal to obtain IQ sampling signals; carrying out normalization processing on the IQ two-path sampling signals to obtain a feedback signal in a complex signal form; under the condition that first power is determined according to the root-mean-square of the original signal, second power is determined according to the root-mean-square of the feedback signal; determining an amplitude difference between the feedback signal and the original signal based on the first power and the second power; performing amplitude alignment adjustment on the feedback signal according to the amplitude difference and the amplitude of the original signal; and based on the time delay of the original signal, carrying out time delay alignment adjustment on the amplitude alignment signal. According to the invention, the nonlinear effect of the power amplifier is effectively controlled and compensated, the signal-to-noise ratio of signals is improved, the bit error rate is reduced, and the condition of signal distortion is reduced.

The invention relates to the technical field of vehicle door design, in particular to a split type vehicle door and a pre-bending compensation method thereof. The pre-bending compensation method comprises the steps that the vehicle door is divided into a large deformation area and a small deformation area according to a deformation prediction result; the small deformation area of the vehicle door is compensated and adjusted through the clamp; driving the large deformation area of the vehicle door to perform digital-analog rotation according to a preset calculation angle by taking a vehicle door window frame water tangent line as a rotating shaft; and the condition of the welding binding face of the large deformation area of the vehicle door is monitored, and the binding face mathematical model of the large deformation area of the vehicle door is reconstructed according to the monitoring result, so that the welding binding face of the large deformation area of the vehicle door is restored to the initial binding state. For a vehicle door area with large deformation, a process digital model is obtained by adopting a method that a product digital model rotates around a specific shaft by a specific angle. The large workload of CAE analysis and door frame digital-analog complete reconstruction is avoided, and therefore the problems that the digital-analog reconstruction period is long and precision is poor are solved.

The invention discloses a frequency modulation capability-considered DC frequency coordination control method, system and device, and the method comprises the steps: calculating the frequency modulation capability coefficient of each DC power transmission system participating in the frequency modulation of a sending-end AC system based on the operation state of each DC power transmission system and the equivalent parameter of a DC receiving-end AC system; based on the frequency modulation capability coefficient and the frequency of the sending end AC system, calculating the frequency modulation auxiliary power of each DC power transmission system of which the sending end is commonly connected to the same sending end AC system; adding the frequency modulation auxiliary power and each initial power to obtain alternative power of each direct current power transmission system; and determining the actual power of each direct-current power transmission system according to the comparison result of the alternative power of each direct-current power transmission system and the minimum operation power limit value and the maximum operation power limit value of each direct-current power transmission system. According to the technical scheme, the problems that the frequency modulation capability of multiple direct-current power transmission systems is not fully played and a certain direct-current receiving end alternating-current system excessively participates in frequency modulation in the prior art can be solved.

The high-speed reciprocating type shaver comprises a frame body, a shell, a driving assembly and a shaver head assembly, the driving assembly is mainly installed between a first installation transverse frame and a second installation transverse frame of the frame body, and a motor is installed between a motor bottom frame and a motor top frame in the driving assembly. The motor is prevented from being in direct contact with a frame body or a shell of the shaver, the amplitude of vibration transmitted to the frame body in the working process of the motor is reduced, and vibration and noise of the motor are partially absorbed through the motor bottom frame, the motor top frame and the motor side frame. A gap exists between the first mounting cross frame and the bottom of the frame body, so that most vibration of the driving assembly is absorbed through the first mounting cross frame and the second mounting cross frame, and the amplitude of the vibration transmitted to the frame body is reduced; the frame body and the shell are designed in a separated mode, vibration on the shell is further reduced, the service life of the whole structure is prolonged, and then the use experience of a user is improved.

The invention discloses a 3DP printing method based on a metal-ceramic composite powder material, and relates to the technical field of additive manufacturing. After metal-ceramic composite powder is subjected to binder jet printing, curing, powder removing and degreasing treatment, a high-temperature-resistant perforated ceramic gasket-infiltration process is adopted, and the metal-ceramic composite powder material is prepared. Copper phase erosion caused by direct contact between the bottom of the printing-degreasing piece and the infiltration material is avoided, the surface quality of the sample is effectively guaranteed, and the infiltration alloy and the printing piece can be separated after infiltration is completed. By controlling the usage amount of the infiltration material, poor liquid phase overflow of the infiltration material in a high-temperature environment can be effectively controlled, and a printed-infiltration piece has a good appearance while high density of a sample is guaranteed.

The present invention discloses a cable winding device for electric power engineering and a winding method thereof, which relates to the technical field of electric power engineering cables, and comprises a support seat, a cable drum and a rotating mechanism installed on the support seat; the cable drum is rotatably connected to the support seat, and the rotating mechanism is used to drive the winding drum to rotate; the cable drum comprises a winding drum and baffles coaxially rotatably arranged at both ends of the winding drum, and the baffles are connected to the support seat. The present invention sets a protective mechanism, and when the cable is wound up and the end of the cable accidentally loses the limit fixation, the cable stretches and swings, and the swinging cable contacts the protective cover at this time, and the swinging range of the cable is limited by multiple protective covers, so as to limit the swinging amplitude of the cable during the unfolding process, and effectively eliminate the hidden dangers to the surrounding staff.

The application relates to the technical field of chip design, in particular to an AI-based DDR5 memory interface chip adaptive method and system.The method comprises the following steps: obtaining a configuration instruction stream, extracting current and historical configuration instructions, and predicting target pins, switching time and target modes.Before the switching time, target electrical parameters are calculated according to pin electrical characteristics, historical switching records and channel load characteristics.During the switching, the target parameters are loaded and the temporary impedance matching network is switched in.After the switching, a fine-tuning increment is generated according to the deviation of the signal quality and the threshold value, and the updated electrical parameters are obtained by superposition, and the matching network is disconnected after the updated electrical parameters are written back to the register.According to the timing error and the fine-tuning increment generated by multiple switching, the weight parameters are updated and deployed back to the chip.Through AI prediction and the dynamic switching and fine-tuning of the temporary impedance matching network, seamless, stable and low-delay mode switching of the memory interface chip in the reconfigurable computing system is realized.

The utility model discloses a kind of anti-slip wire reinforcing rib square tubes with stretch hole structure, it is related to square tube field, including square tube body, the surface of square tube body is equipped with stretch hole at equal intervals, and square tube body surface is provided with wide hole, and square tube body inside is provided with support mechanism, and support mechanism provides support force for square tube, the surface of square tube body is provided with protection mechanism, and protection mechanism protects square tube body. The anti-slip wire reinforcing rib square tube with stretch hole structure, the surface of square tube body is equipped with stretch hole with the diameter of 4.5mm at equal intervals, the interval between adjacent stretch hole is multiple of 12.5mm, to effectively prevent the phenomenon of slippage;Meanwhile, the surface of square tube body is also arranged wide diameter hole with the diameter of 9.5mm at equal intervals, the interval of adjacent wide hole is multiple of 200mm, by the setting of such stretch hole structure, further enhance the effect of anti-slip.

This invention relates to the field of vehicles, providing a housing structure, a rear bumper assembly, a vehicle body, and a vehicle. The housing structure includes a housing body with a receiving groove for accommodating a pressure relief valve on a rear side panel. The housing body can be positioned on the outside of the rear side panel of the vehicle, and an exhaust passage communicating with the pressure relief valve is formed between the receiving groove and the rear side panel. The exhaust passage has an exhaust port facing the rear end of the vehicle. When the vehicle is in motion, the airflow outside the vehicle bypasses the housing body and flows towards the rear end of the vehicle. Since the exhaust port of the exhaust passage faces the rear end of the vehicle, the airflow outside the exhaust passage passing through the exhaust port causes minimal pressure changes within the exhaust passage, resulting in minimal pressure differential fluctuations between the exhaust passage and the inner side of the rear side panel. This effectively reduces the frequency and amplitude of the pressure relief valve's flapping action, thereby reducing low-frequency noise generated by pressure differential fluctuations in the acoustic cavity and ensuring passenger comfort.

This utility model discloses a receiver-type automotive fuel level sensor, including an electrical box, a signal output line, and a flange. A probe rod is installed at the bottom of the electrical box, and the flange is installed on the outside of the probe rod. A monitoring and control mechanism is provided inside the probe rod, and a gauging groove is provided inside the probe rod. A float is slidably connected to the inner wall of the gauging groove. The probe rod has an oil inlet and an exhaust port. The gauging groove is connected to the external space through the oil inlet and the exhaust port. The monitoring and control mechanism includes a combined sensor, a PLC control unit, and a telescopic rod. By dynamically adjusting the opening of the exhaust port through the telescopic rod, large fluctuations in the fuel level in the gauging groove are suppressed, and the pressure in the internal space of the gauging groove above the float is increased, making the float more stable, reducing the frequency and amplitude of shaking, and reducing the displacement signal fluctuation caused by the inertia of the float, so that the fuel level signal transmitted to the instrument is more stable.

The utility model provides a tree root machine which comprises a frame, a working part, two wheels and a brake mechanism, and the working part is rotationally connected with the frame; the two wheels are arranged on the frame and drive the tree root machine to move, and each wheel comprises a hub; the brake mechanism is arranged on the frame, the brake mechanism operably locks the hub, the brake mechanism comprises a hand brake, a linkage assembly and at least one brake pad, and the linkage assembly is connected to the hand brake and the brake pad; the hand brake operably enables the linkage assembly to pull the brake pad to be clamped with the hub of the corresponding wheel, or enables the brake pad to return to the original position to be separated from the hub of the wheel; the wheel cannot advance when the hub is clamped with the brake pad, and can advance when the hub is separated from the brake pad.

The utility model discloses an anti-explosion storage battery box which comprises a box body and a cover body, a top opening is formed in the top of the box body, a containing cavity is formed in the box body, anti-collision cotton is arranged in the box body, a plurality of anti-collision grooves are formed in the box body, and rubber strips are arranged in the anti-collision grooves; the cover body can be detachably and totally closed and seal the top opening position of the box body, the cover body partially extends into the top opening position of the box body, and anti-collision cotton is arranged on the side wall, extending into the box body, of the cover body; the anti-collision cotton can absorb energy and buffer when the battery body collides, and for the battery body with cooling liquid, the cooling liquid can be absorbed by the damping cotton when leaking, and if the cooling liquid corrodes components such as a battery body shell or a circuit board, the cooling liquid can be absorbed, so that the corrosion condition is prevented, and the service life of the battery body is prolonged. And if the cooling liquid has flame-retardant and electric leakage characteristics, the anti-collision cotton also has the same performance so as to ensure that the use effect of the anti-collision cotton is remarkable.

The present invention discloses a multi-node server data processing device, which relates to the technical field of multi-node servers; it comprises a service cabinet and a plurality of server units, the service cabinet is provided with a cabinet slot for installing a plurality of server units, and a heat dissipation and noise reduction component is installed on the service cabinet; a plurality of support frames are fixedly installed in the cabinet slot, and the server units are placed on a plurality of support frames at the same height through the installation components, and a heat conduction and noise reduction component matched with the heat dissipation and noise reduction component is installed on the server units. The advantages are: under the premise of satisfying the overall required heat dissipation, the vibration and noise generated by air cooling in the device are effectively reduced, the protection of the working environment of the server nodes is improved, and the accuracy of the work of the server nodes is improved.