7results about How to "Guaranteed change" patented technology

The lamp string with the rotating structure comprises a supporting frame, a steering assembly is installed in the supporting frame, a rotating assembly is installed at the bottom of the supporting frame, the steering assembly comprises an installation block rotationally connected with the interior of the supporting frame, and a lamp body is fixedly installed on the outer wall of the top of the installation block. A mounting plate is arranged at one end of a rotating shaft of the mounting block, a positioning rod is slidably inserted into one end of the mounting plate, a plurality of limiting holes are formed in the outer wall of one side of the supporting frame and distributed at equal intervals, an extension plate is fixedly connected to one end of the outer wall of the circumference of the positioning rod, and a same spring is fixedly connected between the extension plate and the mounting plate. The rotating assembly comprises a connecting plate coaxially fixed to the outer wall of the bottom of the supporting frame, by arranging the steering assembly and the rotating assembly, the lamp body can rotate according to needs, it can be guaranteed that light can reach different positions, and therefore the device is higher in adaptability and convenient to use.

The invention discloses an electromagnetic shielding air-inlet grille with variable reflectivity and a control method thereof. The electromagnetic shielding air-inlet grille comprises a double-layer grille body, the double-layer grille is arranged at an air inlet of an engine air inlet channel, the double-layer grille comprises a fixed grille body and a rotating grille body, the overall appearance of the fixed grille body and the overall appearance of the rotating grille body are circular, the fixed grille body is composed of an outer fixed ring and an inner fixed grille body, parallel grille bodies are arranged in the inner fixed grille body, and an annular rotating groove is formed in the outer fixed ring in the circumferential direction; parallel grilles are arranged in the rotating grilles, and the rotating grilles are embedded and mounted in the annular rotating groove of the outer fixing ring through the annular rotating groove of the outer fixing ring; and the grating included angle between the rotating grating and the fixed grating is changed through the circumferential rotation of the rotating grating along the annular rotating groove, so that the air inlet area of the air inlet and the radar wave reflectivity are changed. According to the technical scheme, the problem that radar wave reflectivity and engine air inlet efficiency are difficult to consider in addition of the air inlet grille due to the fact that a stealth mode that the grille net is additionally arranged at the air inlet is adopted in the stealth design of the helicopter air inlet channel is solved.

The invention relates to an automatic adjustment method of an ultrasonic flaw detection gate, which is applied to a flaw detector and comprises the following steps: in the process of performing scanning flaw detection on a to-be-detected workpiece by using the flaw detector, determining the actual thickness of the to-be-detected workpiece based on an initial wave signal and a bottom wave signal obtained by scanning flaw detection of the flaw detector; calculating a bottom wave moment based on the actual thickness of the workpiece to be measured, wherein the bottom wave moment is the time corresponding to the maximum amplitude point of the bottom wave signal; determining a bottom wave gate of the to-be-detected workpiece based on the bottom wave moment, and determining an initial wave gate of the to-be-detected workpiece based on the initial wave signal; and determining a target flaw detection gate of the to-be-detected workpiece based on the initial wave gate and the bottom wave gate. The problem that in the prior art, the measurement precision of a continuous variable-thickness workpiece in the ultrasonic scanning process cannot be guaranteed is solved.

The utility model provides a tool for endoscope image detection, and belongs to the technical field of endoscope detection. The tool comprises an identification piece and a driving mechanism, the driving mechanism is connected with the identification piece, the driving mechanism is used for driving the identification piece to rotate, the surface of the identification piece is provided with at least two identification areas, and the at least two identification areas are arranged in the rotating direction of the identification piece. According to the application, the identification piece and the driving mechanism are arranged, the identification area convenient for the endoscope to identify is arranged on the surface of the identification piece, and the driving mechanism is utilized to drive the identification piece to rotate, so that the identification piece can rotate at a regular speed, and the position of the identification area on the surface of the identification piece can be changed at a regular speed; therefore, it is ensured that the image collected by the endoscope can change according to a regular speed, the situation that the image collected by the endoscope is not changed in time due to motion jamming of the identification piece is avoided, and the accuracy of an endoscope image detection result is improved.

The application discloses a sewage treatment plant carbon source adding amount control method, device, equipment and medium, relates to the sewage treatment automatic control technical field, and carries out pretreatment to the multi-source control data of the sewage treatment process; the nitrogen index emission load and the water yield of the current control period are updated rolling, the cumulative nitrogen index emission load and the cumulative water yield between the starting control period and the current control period are obtained; based on the cumulative nitrogen index emission load, the cumulative water yield, the residual water yield prediction value between the next control period and the end control period of the current control period, the dynamic control set value is determined; the target carbon source adding amount is determined by using the water nitrogen index concentration and the dynamic control set value, the target carbon source adding amount is converted into a control instruction and is issued to an executing mechanism, so that the executing mechanism controls the carbon source adding amount, solves the problem that it is difficult to consider the constraints and dynamically adjusts according to the cumulative emission margin, and realizes the automatic control of the carbon source adding amount.

The present application relates to rectification technical field, particularly to a kind of rectification tower system balance full-automatic separation control method, rectification tower system includes rectification I tower, control method includes to rectification I tower is carried out material balance control and gas-liquid equilibrium control, gas-liquid equilibrium control is used to control the amount of backflow of material backflow to rectification I tower;The material balance control includes: detecting the actual feed flow of rectification I tower and the actual liquid level value of the first reflux tank corresponding to rectification I tower, in combination with the overhead take-off component set point of rectification I tower and the overhead take-off component density, the overhead take-off material flow of rectification I tower is calculated and controlled in real time.By the method, the stability and efficiency of rectification tower system are improved, and the energy consumption cost and the volatility problem of product are reduced.

The present invention belongs to the technical field of soil and water improvement, and in particular, relates to a soil and water improvement system in coastal areas, comprising a vehicle body, a first rotating rod rotatably connected inside the vehicle body, an empty slot is provided inside the vehicle body, a movable plate is slidably connected inside the empty slot, three second rotating rods are rotatably connected on the movable plate, the three second rotating rods are transmission-connected to the first rotating rod through a transmission mechanism, a displacement mechanism is provided at the bottom of the first rotating rod, the three second rotating rods are controlled by the first rotating rod through the displacement mechanism, and a box body is provided on the top of the vehicle body. The present invention can make the three second rotating rods enter deeper into the soil by setting a displacement mechanism, and make the soil conditioner change and balance the saline-alkali components in the deeper part of the soil, so as to achieve a better soil improvement effect, and by setting a soil turning mechanism, the soil is turned back and forth, which can not only facilitate the second rotating rods to drill into the soil and inject the soil conditioner, but also loosen the soil and prevent salt return.