19results about How to "Realize automatic protection" patented technology

The invention discloses a self-positioning rotary jig for laser welding equipment, and belongs to the technical field of welding jigs, the self-positioning rotary jig comprises a base and a welding table rotationally arranged on the base, the base is provided with a laser welding assembly, the welding table is fixedly connected with a positioning cylinder, the self-positioning rotary jig further comprises a driving disc rotationally connected in the positioning cylinder, and the driving disc is arranged on the base. A plurality of arc-shaped sliding holes are formed in the driving disc; according to the self-positioning rotating jig for the laser welding equipment, when a second motor drives a cylinder to rotate, under the supporting of a torsional spring and a baffle on the shifting plates, the multiple shifting plates synchronously rotate along with the cylinder, the multiple abutting plates abut against multiple driven plates on a rotating rod correspondingly, the multiple driven plates are driven to rotate at the same time, and then the rotating rod and a driving disc are driven to rotate; according to the welding device, the workpiece can be quickly corrected and positioned, the welding device can adapt to cylindrical workpieces of different sizes, the positioning speed of the workpiece is high, the inclined workpiece can be automatically corrected, and the welding efficiency of the workpiece can be improved.

The invention discloses a non-intrusive data information security management method and device. The method comprises the following steps: deploying database middleware between an application program and a database; the middleware manages database connection; the middleware receives an SQL request from an application program; the middleware analyzes the received SQL request; the middleware judges whether the SQL request contains a sensitive field needing to be specially processed or not; the fields are sensitive fields, and the middleware automatically applies an encryption and decryption algorithm; the modified SQL request is executed on a database so as to carry out data access operation; an execution result is returned to the application program, and the middleware decrypts the data; the Web interface provided by the middleware is used for configuring and managing encryption strategies, algorithms and secret keys; re-encrypting the existing data processed by using the old encryption scheme; and completing a data security management process. According to the method, access to sensitive fields is identified through the SQL analysis module, an encryption and decryption algorithm is automatically applied, and the safety of data in the transmission and storage process is guaranteed.

The invention provides a power supply driving circuit, a new energy vehicle, a method, a device, a medium and a product, and the power supply driving circuit comprises a charging plug module; the charging socket module is in charging connection with the charging plug module through a high-voltage plugging assembly, and the charging socket module is in control connection with the charging plug module through a low-voltage plugging assembly; the plugging distance between the high-voltage plug and the high-voltage jack of the high-voltage plugging assembly is greater than the plugging distance between the low-voltage pin and the low-voltage jack of the low-voltage plugging assembly. Through the embodiment of the invention, automatic protection aiming at abnormal plugging or connector loosening virtual connection in the power supply process is realized, the power supply reliability and the circuit safety are improved, and the charging safety of the new energy vehicle is improved.

The invention relates to the field of generator set monitoring, in particular to a breeze generator set automatic protection method and system, and the method comprises the steps: obtaining parameters of each breeze generator set at each moment; taking the to-be-detected breeze generator set as a target breeze generator set, and selecting any breeze generator set as a reference generator set of the target breeze generator set; dividing the plurality of moments to obtain a plurality of time periods, and drawing a first curve about the wind speed and the output power of the target breeze generator set in each time period and a second curve about the reference generator set; and constructing a fault evaluation function of the target breeze generator set, obtaining the maximum value of the fault evaluation values according to the fault evaluation function, and giving out an early warning prompt in response to the situation that the maximum value is greater than a preset threshold value. The breeze generator set can be accurately monitored, further acceleration of faults of the reference generator set is effectively avoided, and the effect of automatic protection of the breeze generator set is achieved.

The invention discloses an electric anastomat clamping and cutting state detection system and method and a storage medium, a plurality of clamping thickness detection units are arranged on a nail abutting seat, detection of tissue thickness data can be achieved, the clamping thickness detection units are arranged outside an anastomosis nail forming groove, and the clamping thickness detection units are arranged outside the anastomosis nail forming groove. The cutting resistance detection unit is arranged on the side face of the tool bit, the cutting resistance can be detected, the cutting resistance detection unit is arranged on the side face of the tool bit, and the influence on cutting of the tool bit can be effectively avoided. Compared with a traditional clamping pressure display mode, the device has the capacity of detecting the clamping thickness and the cutting resistance in real time, automatic protection can be achieved according to detected tissue thickness data and cutting resistance data, the requirement for operators is greatly lowered, and the device is suitable for large-scale application and popularization.

The utility model relates to the technical field of noise reduction devices, in particular to a shock absorption and noise reduction device for a percussion drill. According to the technical scheme, the percussion drill comprises a percussion drill body and further comprises a fixed machine head installed at the front end of the percussion drill body, a drill bit is connected to the fixed machine head, the surface of the drill bit is sleeved with a sound absorption cover, and a transmission box is fixedly installed at the top of the percussion drill body. According to the utility model, the protective shell is automatically protected, the service life of the protective shell is prolonged, and the protective shell can always abut against the wall, so that not only is the damage to an operator caused by particle splashing prevented, but also the generated dust particles are all collected in the protective shell, the subsequent treatment is facilitated, and the cleanness of the working environment is maintained.

The invention provides a mosquito raising device convenient to take and place, and relates to the field of mosquito raising devices.The mosquito raising device comprises a supporting rack, and a mosquito storage hopper is fixedly connected to the right side of the top end face of the supporting rack; the storage auxiliary mechanism is arranged between the mosquito storage hopper and the opening and closing control plate; the feeding tray is slidably arranged on the bottom side of the left end of the supporting rack. A rolling shaft is rotationally arranged behind the feeding tray; a protective auxiliary net is wound at the outer end of the winding shaft; the protection auxiliary mechanism is arranged between the feeding tray and the winding shaft; the egg feeding box is fixedly connected to the right side of the bottom end of the supporting rack; the water storage tank is fixedly connected to the outer side of the right end face of the egg feeding box. According to the device, the operation steps of adding sweet water or chemicals into the feeding tray are reduced, the frequency of repeated labor of operators is reduced, the operation convenience of adding the sweet water or chemicals into the feeding tray is improved, the mosquito prevention and control effect is improved, the problem that the operation convenience of adding the sweet water or chemicals is affected is solved, and the mosquito prevention and control effect is improved. The mosquito prevention and control effect is influenced.

The application relates to the technical field of building energy saving, in particular to a building heat energy recovery device, which comprises support end plates installed at the two ends of a heat collecting plate, a fixed support fixedly connected to one side of the support end plate, and support legs connected to the surface of the support end plate; a selection groove is formed in the surface of the fixed support, a driving chain is rotatably arranged in the selection groove, and a guide column is fixedly installed on the surface of the driving chain; a protection plate is arranged outside the support end plate, and a connecting hole is formed in the surface of the protection plate; two groups of driving rods are driven to rotate by a servo motor, the driving rods drive the driving chain to rotate through guide grooves, the driving chain drives multiple protection plates to move, in the moving process of the protection plates, a driving gear drives a rotating shaft support frame to rotate through a gear, the rotating shaft support frame drives a cleaning roller brush to synchronously rotate, when the protection plates move above the heat collecting plate, the cleaning roller brush rolls and brushes the surface of the heat collecting plate, so that dust adhered to the surface of the heat collecting plate falls off, and the surface of the heat collecting plate is cleaned.

The invention relates to the technical field of optical imaging systems, in particular to an optical imaging system capable of continuously resisting blinding caused by pulse laser damage. The system comprises a secondary imaging optical system, an imaging detector, a nonlinear absorption type optical limiter and a two-dimensional moving unit, the secondary imaging optical system comprises a primary imaging optical assembly and a secondary imaging optical assembly; after entering the secondary imaging optical system, the light beam is focused by the primary imaging optical assembly to form a primary image plane focus, and then is imaged on the imaging detector through the secondary imaging optical assembly; the nonlinear absorption type optical limiter is mounted on the two-dimensional moving unit and is arranged near a primary image plane position of a primary optical axis of the secondary imaging optical system; the two-dimensional moving unit drives the non-linear absorption type optical limiter to move, so that an incident light beam passes through different positions on the non-linear absorption type optical limiter. The device has the advantages that continuous laser protection is carried out on an imaging detector, and automatic protection of an optical imaging system is achieved.

The present invention relates to the field of CT tubes, and discloses a tube core over-temperature protection device for a CT tube, comprising an outer sleeve of a tube core body, a circulation conveying component, an oil cooling and heat dissipation component, and a water cooling and heat dissipation component. The tube core body is provided with a cathode filament and a rotating anode, the outer sleeve is arranged outside the tube core body for protecting the tube core body, and the circulation conveying component is installed outside the outer sleeve for conveying transformer oil in a transformer oil cavity. Compared with the prior art, the present application realizes circulation cooling of transformer oil by arranging a circulation conveying component and an oil cooling and heat dissipation component when the tube core body is in normal operation. When the detected temperature exceeds a safe range, a warning light will display a yellow light, and a sound will be generated for reminder, and the rotation speed of an oil pump and a cooling fan will be increased to accelerate the circulation of transformer oil and accelerate the heat dissipation by blowing air, thereby preventing the transformer oil from heating up too fast.

The utility model discloses a protective cover for a gas tank, which comprises a connecting part in threaded connection with a bottle opening of a steel bottle, a supporting part is arranged on the connecting part, a protective cover is mounted outside the supporting part in a sliding manner, and avoiding areas are arranged on the connecting part and the protective cover; a spring is further arranged between the supporting part and the protective cover, and the protective cover is promoted to move upwards through the spring; the face, away from the connecting part, of the protective cover is of an open structure so that a valve on the steel cylinder can be exposed when the protective cover moves downwards. As the connecting part is in threaded connection with the bottle opening of the steel bottle, on one hand, the connecting part can be reliably fixed on the bottle opening when no external force exists; secondly, when the connecting part is rotated until the avoiding area and the air outlet of the valve are staggered, the air outlet of the valve can be protected; when no external force exists, the protection cover can automatically move upwards under the action of the spring, and then the protection cover is promoted to cover the valve at the bottle opening, so that automatic protection on the valve is achieved.

The invention discloses a strength detection mechanism for finished building materials, and belongs to the technical field of strength detection mechanisms for building materials, the strength detection mechanism comprises a machine base, a support is fixedly mounted above the machine base, a guide column is vertically and fixedly mounted on the support, a housing is further fixedly mounted on the machine base, a hydraulic cylinder is fixedly mounted at the upper end of the support, and the hydraulic cylinder is fixedly mounted on the lower end of the support. A sensor is fixedly mounted at the output end of the hydraulic cylinder, a movable plate is fixedly mounted below the sensor, a pressure applying plate is elastically connected below the movable plate, a pressure applying head is fixedly mounted in the middle of the lower surface of the pressure applying plate, and a partition plate is fixedly mounted on the side wall of the support; a positioning assembly used for clamping and fixing building materials is fixedly installed on the partition plate. According to the strength detection mechanism for the finished building materials, falling scraps can be automatically cleaned and collected after the building materials are broken, automatic protection can be achieved, and the detection safety is further improved under the condition that observation is not affected.

The embodiment of the invention relates to the technical field of printing equipment, in particular to an ink path control method, an ink path control system and a computer readable storage medium, the power supply state of an ink path is monitored, if the power supply state of the ink path is an abnormal power-off state, a standby power supply is switched to supply power, and the ink path is powered off. And the pressure values of the high-pressure end and the low-pressure end of the spray head are adjusted until the pressure value of the high-pressure end is consistent with the pressure value of the low-pressure end, manual intervention is not needed, automatic protection of the ink supply system and the spray head under the abnormal power failure condition can be achieved, and the conditions of ink leakage, air suck-back and the like are prevented.

The utility model provides a fixture for all-welded ball valve manufacturing, which comprises a base, a driving shell, a positioning table, a positioning component and an L-shaped positioning clamping plate, the driving shell is mounted at the upper end of the base, the positioning table is mounted at the upper end of the driving shell, and the positioning component and the L-shaped positioning clamping plate are both fixedly mounted on the upper end face of the positioning table. The positioning assembly is located on the left side of the L-shaped positioning clamping plate. According to the full-welded ball valve production accessory positioning device, full-welded ball valve production accessories of different specifications can be automatically and rapidly positioned, the full-welded ball valve production accessories can be automatically protected, and the full-welded ball valve production accessories are prevented from being damaged due to the fact that clamping force is too large; and the positioning height and angle of all-welded ball valve production accessories can be automatically adjusted.

The present invention discloses an electric vehicle charging pile that is resistant to water accumulation, and belongs to the technical field of charging piles. In order to solve the problem that the existing automobile charging pile is fixed on the ground, when a large amount of water accumulates on the ground due to heavy rain, the charging pile is immersed in the accumulated water and is easily damaged by water infiltration. The present invention arranges a positioning column on the top of the device base to cover the device shell, and arranges a light floating plate in the positioning groove on the side walls around the device shell by using the cooperation of a positioning shaft, a spring adjustment rope and an adjusting member. After the accumulated water enters the inner groove from the gap between the device base and the device shell and contacts the liquid level sensor to trigger a warning water level alarm signal for the accumulated water, the adjusting member releases the restriction on the positioning column, and realizes the horizontal rotation of the light floating plate when the spring is wound and released. When the charging pile is immersed in water, the buoyancy of the light floating plate is used to automatically drive the device shell to slide up and down based on the positioning column, thereby realizing automatic protection of the charging pile when it is immersed in water.

The application provides a wind tunnel free flight model support device and test method for gust alleviation verification, and belongs to the technical field of aeroelastic wind tunnel test. The support device comprises: a linear guide rail vertically fixed between the upper wall of the wind tunnel and the lower wall of the wind tunnel; a synchronous toothed belt arranged along the linear guide rail, both ends of the synchronous toothed belt being mounted on a tunnel top belt wheel and a tunnel bottom belt wheel; a sliding block fixed on the synchronous toothed belt; a pitch electromagnetic damper comprising a pitch electromagnetic damper rotor and a pitch electromagnetic damper stator, the pitch electromagnetic damper stator being fixedly connected with the sliding block, and the pitch electromagnetic damper rotor being fixedly connected with a model airplane; and a heave electromagnetic damper arranged adjacent to the tunnel top belt wheel, the heave electromagnetic damper comprising a heave electromagnetic damper stator and a heave electromagnetic damper rotor, the heave electromagnetic damper rotor and the tunnel top belt wheel being meshed with each other to form a heave displacement conversion amplification gear pair.

The utility model provides an aluminum casting pre-press, which relates to the technical field of aluminum casting production equipment, and comprises a base, the top of the base is fixedly connected with a support rod, the top of the support rod is fixedly connected with a top plate, the outer side of the base is provided with a controller, the top of the top plate is provided with a stamping mechanism, and the stamping mechanism is provided with a stamping mechanism. A stamping groove is fixedly connected to the top of the base, a lifting mechanism is arranged on the outer side of the stamping groove, and the stamping mechanism comprises a hydraulic cylinder. The micro motor of the lifting mechanism drives the lead screw to rotate, the movable block is driven to move up and down along the lead screw, the L-shaped rod is in linkage with the sliding ring to slide on the fixed rod, and finally the lifting plate stably ascends and descends in the punching groove. The structure supports millimeter-level fine adjustment (the adjustment precision is + / -0.5 mm) of the height of the lifting plate, is adaptive to aluminum casting blanks with different thicknesses, and avoids excessive or insufficient stamping caused by blank size difference.

This utility model relates to the field of electric forklift charging technology, and in particular to a fast charging device for electric forklifts. It includes a bracket with a vertical support rod, and a charging gun with a protective component. The protective component includes a housing fixed to the charging gun's outer shell, a dual-axis motor housed within the housing, a worm gear driven by both ends of the dual-axis motor, a worm wheel driven by the worm gear, a vertical shaft driven by the worm wheel, a horizontal connecting rod connected to the vertical shaft, and a protective cover at the end of the horizontal connecting rod. The two protective covers rotatably cover the front connector of the charging gun to protect it. By providing a protective component driven by a dual-axis motor, worm gear, and other transmission mechanisms on the charging gun, the protective cover of this component can automatically open and close, thereby achieving automatic protection of the front connector of the charging gun.

The invention discloses a sliding type cylinder barrel hole site detection device, and relates to the field of cylinder barrel detection. The defects that the detection time is long and multi-dimensional measurement cannot be carried out are overcome. A sliding type air cylinder barrel hole site detection device comprises a base, the base is rotationally connected with a bearing frame, the bearing frame is slidably connected with first sliding frames distributed in the circumferential direction of the bearing frame at equal intervals, springs are fixedly connected between second sliding frames and the first sliding frames, the first sliding frames are slidably connected with lifting frames, and the lifting frames are matched with inclined grooves. The lifting frame is slidably connected with an angle measuring rod, the first sliding frame is slidably connected with a sliding block, the sliding block is slidably connected with the lifting frame, and the top end face of the bearing frame is slidably connected with rack frames circumferentially distributed along the bearing frame at equal intervals. Through the cooperation of the second sliding frame and the first sliding frame, the rapid measurement of the cylinder barrel is realized, and the measurement efficiency is greatly improved.