1027results about How to "Prevent rollover" patented technology

The invention discloses a water quality sampling device for environment detection, which comprises a connecting plate, a connecting block is fixedly connected to the side wall of the connecting plate, a connecting ring is fixedly connected to one side of the connecting block, a driving blade is rotatably connected to the inner wall of the connecting ring, and an electric rotating rod is fixedly connected to one side of the driving blade. The invention relates to the technical field of water quality sampling devices. Through cooperation of a detector, a sliding circular plate, a fixed cone, a sealing plug, a preservative leather bag, a second electric push rod, a telescopic plate, a push plate, a limiting groove, a sealing bin, an extrusion plate, a reset spring, a limiting pipe and an electric telescopic pipe, a storage test tube injected with sampling water can be automatically sealed, and deterioration caused by excessive contact between a water source and air is avoided; meanwhile, a preservative can be automatically added into the sampling water, the preservation time of the sampling water is prolonged, and after a sealing plug in a limiting pipe is used up, a detector detects and reminds an operator that the sampling water is input into a storage test tube in equipment.

The invention discloses a new energy trailer electric driving device, and relates to the technical field of new energy trailers, and the new energy trailer electric driving device comprises a trailer frame, an electric driving box, wheels, an anti-rollover device, a partition plate, an automatic unloading device, a hydraulic cylinder and a supporting block. The inclination angle sensor below the electric driving box detects inclination of the trailer, the rollover prevention device can adjust the gravity center of the trailer to make the gravity center deviate to the tilted side, meanwhile, the inclined side is supported, the trailer is prevented from rollover, and when unloading is needed, a cylinder rod of the hydraulic cylinder drives the supporting block to abut against the ground. When unloading is finished, the unloading door of the carriage is manually opened, the automatic unloading device enables the carriage of the trailer to automatically incline until the specified angle is reached for unloading, and after unloading is finished, the automatic unloading device enables the carriage to rotate back to the initial position, and the unloading door of the carriage is manually closed.

The utility model relates to an insulin treatment cart. The insulin treatment cart comprises a frame; the operation table top is arranged at the top end of the frame and comprises a special injector box for placing an insulin injector, a special blood glucose testing box for placing related tools for testing blood glucose and a blood glucose meter placing frame for placing a blood glucose meter, and a sharp instrument box for conveniently recycling a needle head of the insulin injector is arranged in the special blood glucose testing box; the sharp instrument box comprises a box body and a box cover detachably arranged at the top of the box body, a dismounting hole is formed in the end face of the box cover, a dismounting ring is arranged in the dismounting hole, and a plurality of clamping blocks matched with the peripheral wall of a needle of the insulin syringe are arranged on the inner end face of the dismounting ring in the circumferential direction at intervals. And the drawer is arranged below the operation table top. Compared with the prior art, insulin for diabetes treatment and related tools can be placed in the insulin storage box in a standard mode, meanwhile, the insulin needle recycling box is arranged, medical workers are prevented from being punctured by needles, and the medical workers can conveniently find related articles and discard the needles after injection.

The invention provides a vehicle attitude control device and method, and relates to the technical field of vehicle control. The device comprises the steps that a brake-by-wire system collects the wheel speed of each wheel of a vehicle and obtains attitude data, deviation calculation is conducted on the attitude data and the wheel speeds, an attitude deviation value is obtained, and the vehicle state of the vehicle is matched from a stability degree table according to the attitude deviation value; the air suspension system collects suspension height signals of all wheels of the vehicle, when the brake-by-wire system judges that the state of the vehicle is an unstable state, the suspension height signals of all the wheels are adjusted according to adjusting rules, and height adjusting signals corresponding to all the wheels are obtained; the air suspension system adjusts the height of the air spring of the corresponding wheel according to the plurality of height adjustment signals. The vehicle is jointly controlled through the brake-by-wire system and the air suspension system, the height of an air spring of the vehicle is adjusted, the vehicle is prevented from rolling over due to the unstable gravity center, and the safety of the vehicle is improved.

The utility model relates to a forklift type heat treatment quenching device, which aims to solve the technical problem that the time and the speed of the quenching device cannot be controlled, and adopts the technical scheme that the forklift type heat treatment quenching device comprises a three-axis moving device, a lifting device, a base, a front main plate, a vertical column, a cross rod and a control system, the top face of the front side of the base is provided with a front main plate and a stand column, and the transverse rod is fixedly arranged at the upper end of the stand column. The stand column is telescopic, a hydraulic cylinder is arranged in the middle of the stand column, one end of the conveying chain is connected with the lifting frame, the other end of the conveying chain is connected with the front main plate, and the control system is placed on the base and electrically connected with the roller driving motor and the hydraulic cylinder. According to the utility model, the rapid and automatic movement of workpiece quenching can be realized, the cooling time and speed are controlled, the poor quenching effect caused by overlong movement time of the workpiece in the air is prevented, and the quenching efficiency and effect are improved.

The utility model discloses a transport case for storing soil detection samples, which relates to the technical field of soil sample transport cases and comprises a case body, a case cover is hinged to the top end of the case body, containing grooves are symmetrically formed in the left side and the right side of the case body, and a first threaded rod is connected to the center of each containing groove through a bearing. The top end of the first threaded rod is sleeved with a bevel gear set, and rotating rods are inserted into the side edges of the bevel gear set correspondingly. Through the arrangement of the moving plate and the moving rod, when the box body is placed on the ground, a worker can manually rotate the rotating rod, so that the moving rod can be driven to be inserted into soil, the stability of the box body placed on the ground is guaranteed, the inserting rod and the grabbing strip are arranged, and in the using process, through the inserting rod of a conical structure, the box body is not prone to falling off. The movable rod can be conveniently inserted into the soil, and the ground gripping capacity of the movable rod in the insertion process can be guaranteed by matching with the gripping strips distributed on the outer side of the movable rod.

The invention discloses an electric carrying equipment drive-by-wire chassis multi-domain collaborative anti-rollover control method, which comprises the following steps of: 1, constructing a rollover risk assessment and control strategy selection method, and calculating key parameters such as yaw velocity and lateral acceleration of a vehicle in real time; step 2, based on the rollover risk index model and the rollover critical threshold in the step 1, establishing a multi-domain collaborative rollover prevention control model, and performing collaborative scheduling on independent steering, hub motor differential steering and an ESP brake control system; step 3, based on the multi-domain collaborative anti-rollover control model in the step 2; and 4, based on the priority dynamic allocation and control strategy execution result in the step 3, the central control unit coordinates the complex interaction relationship among the subsystems by using a fuzzy logic control algorithm. The invention provides a reliable control strategy priority and use frequency method, and provides a more reliable anti-rollover solution for the electric carrying equipment under a complex dynamic working condition.

The invention belongs to the technical field of intelligent manufacturing equipment, and discloses a symmetrical telescopic mechanical arm which comprises a supporting frame, telescopic mechanical arms are fixedly connected to the two sides of the top of an inner cavity of the supporting frame correspondingly, a balance weight mechanism is arranged at the output ends of the telescopic mechanical arms, and the balance weight mechanism comprises a first balance weight box. The first weight box is fixedly connected to the output end of one telescopic mechanical arm. When materials on one side are grabbed, the weight of the other end is increased, the situation that the gravity center above the supporting frame shifts towards the direction of the first weight box or the second weight box to cause rollover is prevented, and when the materials on the two sides are grabbed, weight increasing can be canceled, so that the situation that the gravity center is too high, and the rollover phenomenon is caused is avoided. The stability during use is improved, and safety accidents are avoided.

The utility model relates to the technical field of cranes, in particular to an anti-rollover device for a crane, which comprises a frame, four mounting seats are mounted on the frame, bearing rods are mounted on the mounting seats, hydraulic telescopic rods are mounted at the bottoms of the bearing rods, anchoring devices are arranged on the hydraulic telescopic rods, each anchoring device comprises a mounting ring, and the mounting rings are mounted on the mounting seats. The mounting ring is fixedly mounted on a fixed section of a hydraulic telescopic rod, a telescopic section of the hydraulic telescopic rod is connected with a supporting seat, and four drill rods are rotatably mounted on the inner wall of the supporting seat. Through the arrangement of the anchoring device, the supporting seats can support the frame, the four drill rods are drilled into the ground to anchor the supporting seats, when the frame inclines laterally, the four supporting seats can keep making contact with the ground, the supporting seat on one side applies supporting force to the frame, and the supporting seat on the other side applies pulling force to the frame. And rollover of the frame is avoided.

The invention belongs to the technical field of building equipment, in particular to a scaffold for building, and provides the following scheme that the scaffold for building specifically comprises a scaffold seat body, four supporting bolts are arranged at the top of the scaffold seat body, and multiple layers of stacked supporting frame mechanisms are connected among the tops of the four supporting bolts in an inserted mode; a telescopic side supporting fastening mechanism is installed in the center of the bottom of the scaffold base body, the supporting frame mechanism is composed of a fixing frame of a frame-shaped structure and two door-shaped frames, and the door-shaped frames are connected to the two ends of the top of the fixing frame in an inserted mode. A user conveys materials up and down through the step pedal mechanism, when the step pedal mechanism is not used, one end of the step pedal mechanism is taken down, the two ends of the step pedal mechanism are folded and contracted, a grid plate mechanism is formed at the top of the step pedal mechanism, the space of a mounting groove is made up, a complete working platform is formed, and transformation is simple and convenient; and the safety and the convenience in use of the scaffold are provided.

The utility model provides an agricultural small-sized smart cross-country type multifunctional intelligent platform. The agricultural small-sized smart cross-country type multifunctional intelligent platform comprises an all-terrain adaptive chassis, a self-adaptive leveling platform and a replaceable operation mechanism, the all-terrain adaptation chassis comprises a platform car side wheel set, a circuit box and a rocker arm bogie and is used for terrain adaptation. And the self-adaptive leveling platform is fixedly connected with the circuit box through an electric push rod. According to the all-terrain adaptive chassis, the front frame body and the rear frame body rotate around a shaft relative to each other or the circuit box through the differential speed of all wheels, self-adaption to terrain conditions is completed, and a machine body is effectively prevented from rolling over; and real-time rapid leveling of the self-adaptive leveling platform is completed through the electric push rod, and the structural stability and the operation accuracy of the device in the operation process are guaranteed. The intelligent platform is small in size and can freely enter and exit from small-area, irregular and scattered cultivated land in hilly and mountainous areas; different operation modules can be additionally arranged on the top of the platform, complex and diversified agricultural technologies in hilly areas can be dealt with, and modular cluster type operation is achieved.

The invention provides an MPC-based cross-country road vehicle motion control method and device, and partially solves the technical problems of poor safety and stability during high-speed driving on a cross-country road. The method comprises the following steps: modeling according to physical characteristics of the cross-country terrain to form a terrain dynamics model for identifying and quantifying terrain constraints; performing terrain constraint in the path planning process of planning the vehicle dynamics model in the sensing environment through model prediction control to form real-time optimization control of a motion track; and a kinematics control instruction of a vehicle low-level controller is formed according to the real-time optimization control to adjust the motion trail of the vehicle so as to keep stability and safety. A reliable solution is provided for an autonomous driving system passing through a cross-country road surface at a high speed, and the method has important practical application prospects.

The present invention discloses a vehicle driving brake device with auxiliary braking function. The present invention is provided with an electromagnetic winding and a brake disc, so that when the temperature of the brake disc is too high, resulting in a decrease in the braking ability of the vehicle, the electromagnetic winding can provide auxiliary braking to avoid brake failure and vehicle accidents. The provided driving motor and lead screw enable the distance between the electromagnetic winding and the brake disc to be adjusted, thereby facilitating the control of the auxiliary braking ability of the electromagnetic winding on the brake disc, enhancing the controllability of the auxiliary braking, and ensuring the safety of the auxiliary braking. The provided anti-lock braking mechanism can actively use the anti-lock braking mechanism to achieve tire braking when the vehicle tire is locked, thereby improving the controllability of the vehicle, avoiding vehicle rollover, causing traffic accidents and driver injuries. Compared with traditional brake systems, the present invention has the excellent effects of strong braking ability and high braking safety.

The anti-rollover structure comprises placing plates, anti-rollover mechanisms and a goods unloading mechanism, conveying wheels are arranged at the bottom ends of the placing plates, a pushing frame is welded to one end of the outer wall of each placing plate, a goods box is placed at the top end of each placing plate, the anti-rollover mechanisms are welded to the periphery of the top end of each placing plate, and the goods unloading mechanism is welded to the periphery of the top end of each placing plate. The anti-rollover mechanism comprises side plates, lock catches, a fixed rod, a movable plate and a handle, the side plates are welded to the periphery of the top end of the placing plate, and the lock catches are fixedly connected to the surfaces of the side plates. According to the anti-rollover structure for stacking of the stacker crane, through the arranged anti-rollover mechanisms, when cargo boxes are stacked on the containing plate through the stacker crane, movable plates in the anti-rollover mechanisms on the periphery of the containing plate can be conveniently pulled out according to the height of the cargo boxes, and the height of the movable plates is fixed through fixing rods; and the periphery of the cargo box can be protected through the side plates and the movable plates, and rollover or toppling caused by too high height of the cargo box is avoided.

The invention relates to a bridging type trackless train which comprises a plurality of vehicles, a plurality of rotary supporting devices, a plurality of bridging train bodies and a steering control unit. Wherein the vehicle running at the first position is called as a pilot vehicle, the other vehicles are called as following vehicles, and all the vehicles have a steering function; the front end and the rear end of the bridging vehicle body are installed between two adjacent vehicles through the rotary supporting devices respectively and can do yawing motion and pitching motion around the vehicles. The steering of the pilot car is manually controlled; the steering of the following vehicle is controlled by the steering control unit, so that each vehicle runs on the same track; the historical turning angle of the steering shaft of the pilot vehicle is recorded, the turning angle is transmitted to the steering shaft of each following vehicle in a delayed mode according to the distance between each following vehicle and the pilot vehicle and serves as the feedforward steering control quantity of each steering shaft, and the feedback control quantity is calculated based on the track deviation between the front vehicle and the rear vehicle to obtain the feedback steering control quantity of each steering shaft. And steering control can be efficiently and accurately carried out on each following vehicle. On the basis of ingenious combination of the leading vehicle, the bridging vehicle body, the steerable following vehicle and other components and an innovative train steering control method, train steering can be efficiently and accurately controlled, front and rear vehicles can be kept in the same track to automatically run in rows, the train motion characteristics and mechanical characteristics can be optimized, and the train steering control method is suitable for large-scale popularization and application. The sideslip and rollover risks of the train are reduced, and safe and stable operation of the trackless train is effectively guaranteed.

The invention belongs to the field of industrial hosts, and discloses an intelligent industrial data analysis and processing host which comprises a support and further comprises a machine body, a collection wire, a detection head, a hollow cylinder, an L-shaped supporting plate, a protection assembly, a transmission driving assembly and an impact fixing assembly. Through the synergistic effect of multiple structures such as a nitrile rubber shock pad, a limiting plate, a limiting groove and a first spring, the negative effects such as deviation and component looseness caused by vibration of a host are relieved, vibration collection stability is guaranteed, meanwhile, the protection assembly can protect the detection head during external impact, and the detection efficiency is improved. The modular design and the gas circuit sealing structure further improve the universality of the equipment and the reliability of data acquisition, so that the functions of vibration buffering, accurate acquisition, impact protection and automatic reset of the host are realized through the linkage of the protection assembly, the transmission driving assembly, the hollow cylinder and the detection head, the service life of the host is prolonged, and the data acquisition accuracy is improved.

The utility model discloses a bed body mechanism convenient to transfer, which comprises a bed body fixed part, a bed body movable part is arranged on the bed body fixed part, an inclined descending control mechanism is arranged between the bed body fixed part and the bed body movable part, a fixed side fence is arranged on one side of the bed body fixed part, and a movable side fence is arranged on the other side of the bed body fixed part. A turnover side fence is arranged on the other side of the bed body, a linkage mechanism is arranged between the turnover side fence and the movable part of the bed body, one side of the bed board can move downwards and upwards in parallel, a patient can lie flat or get up to be transferred better, balance is kept and side turning is prevented in the horizontal moving process, and in the upward moving process of the bed board, the turnover side fence is automatically closed. And when the bed plate moves downwards, the turnover side fences are automatically hidden, and the patient is conveniently transferred.

The safe and stable type sea rescue boat comprises a boat body and a control panel embedded in one side of the interior of the boat body, a cabin is formed in the boat body, a pair of side base plates are installed on the boat body in a penetrating mode through the rear side of the cabin, and the side base plates extend out of the boat body and are provided with sleeve rods; dynamic adjustment of the load capacity of the overall structure of the rescue boat is achieved through the additionally-arranged air bag structure, surrounding adjustment of the rescue boat is completed through the cover body structure with the variable coverage area, and specifically, control of sedimentation drainage and obtaining of advancing deflection are completed by combining the real-time state of the rescue boat in the rescue process through an intelligent analysis control module. And dynamic adjustment of the load capacity and stable operation control are realized through intelligent control of the rescue boat, so that buoyancy control of the rescue boat for rescued people in the rescue process is met, and the problem of overweight risk in the rescue process is prevented.

The invention relates to the technical field of geological prospecting, in particular to a forward and reverse drilling machine for geological prospecting, which comprises a base, the base is a basic support structure of the whole drilling machine, a fixing assembly is arranged in the base, the fixing assembly comprises a hydraulic cylinder, the hydraulic cylinder is fixedly connected in the base, and the hydraulic cylinder is fixedly connected in the base. A hydraulic cylinder is arranged on the top of the base, a hydraulic plug is movably connected to the interior of the hydraulic cylinder, a fixing cone is fixedly connected to one end of the hydraulic plug, a downward drilling assembly is arranged on the top of the base and comprises a first motor, and a first rotating shaft is movably connected to the interior of the first motor. According to the forward and reverse drilling machine for geological exploration, through the arrangement of the fixing assembly, a hydraulic plug movably connected to the interior of a hydraulic cylinder drives a fixing cone to move downwards, the fixing cone is inserted into the ground, and therefore the device can be more stable, and the drilling machine is prevented from moving in the drilling process; and rollover of the device due to the counter-acting force of the soil layer on the device during working can be effectively avoided, and the stability of the drilling machine is guaranteed.

The invention relates to the field of pipe jacking construction, in particular to a pipe jacking construction transportation rail blocking device which comprises a transportation rail and a transportation vehicle, wheels are symmetrically installed at the bottom of the transportation vehicle, each wheel is slidably connected to the transportation rail, brake discs are symmetrically and fixedly installed at the bottom of the transportation vehicle, and the brake discs are slidably connected to the transportation rail. Each brake disc is located on the two sides of the corresponding adjacent wheel, and a cooling assembly is fixedly installed on the side wall of each barrier plate. By arranging the buffering assemblies, after a vehicle body of the transport vehicle makes contact with two first baffles, first springs can be compressed to get close to a barrier plate, then wheels enter the position between the two buffering plates, and in the process of getting close to the barrier plate, friction force is continuously enhanced through gradually-dense second friction blocks, so that the transport vehicle is braked; and then the wheels of the transport vehicle are in contact friction braking with the second friction block and the first friction block again, so that the transport vehicle is braked slowly in the braking process.

The invention discloses an intelligent gravity center adjusting device for turning rollover prevention of a commercial vehicle, and belongs to the technical field of turning rollover prevention. Comprising a commercial vehicle, the commercial vehicle comprises a vehicle head, a vehicle body is arranged on one side of the vehicle head, a container is arranged at the top of the vehicle body, a driving assembly is fixedly installed between the container and the vehicle body, a plurality of first gravity center adjusting assemblies are fixedly installed on the two sides of the driving assembly, and second gravity center adjusting assemblies are fixedly installed at the two ends of the driving assembly; a detection assembly is fixedly installed on the side, close to the vehicle head, of the second gravity center adjusting assembly, the first gravity center adjusting assembly comprises a hydraulic telescopic rod, a second hinge joint is fixedly installed at the output end of the hydraulic telescopic rod, a second hinge seat is hinged to the second hinge joint, and the top of the second hinge seat is fixedly connected with the bottom of the container. According to the method, the stability of the commercial vehicle can be effectively improved, the rollover risk in the turning process is reduced, and the method has high practical value.

The invention relates to the technical field of stacking machines, in particular to a logistics stacking machine which comprises packaging equipment, a package conveying mechanism is arranged on the packaging equipment, a stacking auxiliary mechanism for clamping and vertically conveying packages is arranged above the package conveying mechanism, and a ceramic tile stacking mechanism for automatically stacking the packages is arranged on the stacking auxiliary mechanism. A package limiting mechanism for receiving packages is arranged below the stacking auxiliary mechanism, the ceramic tile stacking mechanism comprises a lifting vertical rod, a rectangular protruding block is fixedly installed at the lower end of the lifting vertical rod, and a two-way lead screw is movably installed in the rectangular protruding block. By arranging the ceramic tile stacking mechanism and utilizing mutual cooperation between a rotating support and a distance sensor, the position of a sliding support can be automatically and finely adjusted before extrusion limiting, the sliding support is aligned with the central axis of a logistics package, the package can be effectively prevented from rolling when rotating in the air, and the stability of the logistics package is improved. Therefore, the stability in the stacking process is improved, and falling is avoided.

The invention discloses a baby crib with an adjusting function, and relates to the technical field of baby cribs, the baby crib comprises a sleeping posture adjusting mechanism and a swing bed mounted in the sleeping posture adjusting mechanism, a bottom plate of the sleeping posture adjusting mechanism is provided with a lifting adjusting mechanism, and universal wheels are fixedly mounted at the bottom of the lifting adjusting mechanism; the sleeping posture adjusting mechanism comprises a baby bed bottom plate, fixed bed plates are symmetrically installed on the two sides of the top of the baby bed bottom plate, rotating supports are symmetrically installed on one sides of the fixed bed plates, rotating motors are fixedly installed on one sides of the rotating supports, the output ends of the rotating motors are fixedly connected with rotating worms, and the rotating worms are fixedly connected with the rotating motors. The characteristic that a first mounting threaded block in an adjusting rotating disc is in sliding connection with a reciprocating sliding groove in a reciprocating support is utilized, so that swinging of the reciprocating support is achieved, the reciprocating support drives a rotating connecting shaft and a swinging bed to swing while swinging, and a baby in the swinging bed can be swung and shaken; the baby can be conveniently lulled to sleep and the sleeping posture can be conveniently adjusted.

The present invention relates to a bionic robot, which at least comprises: a main body box with a driving device and a motion control module. The driving device can adjust the speed and direction of the main body box based on the control information of the motion control module to cooperate with the bionic robot to perform detection tasks. The bionic robot also includes a position sensor module and a visual sensor module. The position sensor module measures the relative position parameters of the robot by monitoring the walking parameters of the bionic robot; the visual sensor module determines the surrounding obstacle parameters based on image information recognition; the motion control module automatically plans the robot's obstacle avoidance path based on the relative position parameters, obstacle parameters and target points and guides the driving device to control the robot to move.

The invention provides a trajectory tracking control method and system for a high-load omni-directional AGV, the omni-directional AGV is driven by a plurality of steering wheel mechanisms which are independently steered and driven, and the trajectory tracking control method is characterized by comprising the following steps: acquiring vehicle state information and expected trajectory information of the omni-directional AGV in real time; on the basis of the vehicle state information and the expected track information, core parameters of a model prediction controller are optimized online through a chaos simulated annealing algorithm, and the core parameters comprise a state weight matrix, a control increment weight matrix, a prediction time domain and a control time domain; wherein the model prediction controller performs state prediction based on a longitudinal-transverse decoupling dynamic model adaptive to a high-load working condition; performing rolling horizon optimization through the model prediction controller by utilizing the optimized core parameters, and solving to obtain an optimal control increment; and converting the optimal control increment into a driving instruction for a multi-steering-wheel mechanism, and controlling the omnidirectional AGV to track an expected trajectory.

The utility model discloses an anti-roll jack which comprises a base, a folding rod group and a widening plate, each folding rod group is formed by rotationally matching two groups of connecting rods by taking a tightening latch as a rotating shaft, the bottoms of the two folding rod groups are rotationally matched with the base by adopting a hinged support, and the tops of the two folding rod groups are rotationally matched with the top head; a transversely-arranged screw is in threaded fit with the tightening latch of one folding rod set and is in rotary limiting fit with the tightening latch of the other folding rod set, the two sides of the bottom of the base are each provided with two sets of strip-shaped grooves, the number of the connecting rods is four, and a sliding button is fixed to one end of each connecting rod. The sliding knob ends of the connecting rods are connected with the base in the mode that the sliding knobs are arranged in the strip-shaped grooves and matched with the strip-shaped grooves in a notch mode, and the other ends of the connecting rods on the same side are jointly and rotationally matched on a widened plate of a sheet-shaped structure. The jack has the advantages that lateral support of the jack is added, and the jack is convenient to store.

The utility model relates to a material turnover device which comprises a first conveying belt, a second conveying belt, a turnover mechanism and a pushing mechanism. The second conveying belt is arranged at the conveying tail end of the first conveying belt, and the second conveying belt and the first conveying belt are distributed in a staggered mode. The turnover mechanism is arranged between the first conveying belt and the second conveying belt and comprises a first support, a driving assembly and a turnover material frame, the driving assembly is arranged on the first support, the turnover material frame is connected to the driving assembly, and the driving assembly is used for driving the turnover material frame to drive materials to turn over; the pushing mechanism is parallel to the first conveying belt, and the pushing mechanism is opposite to the second conveying belt. Materials conveyed by the first conveying belt are overturned through the overturning mechanism, then the materials are pushed to the second conveying belt through the pushing mechanism, and conveying of the materials is achieved. Therefore, the whole structure is simple, economical and practical, operation is convenient and fast, and the material conveying efficiency is greatly improved.

The utility model discloses a mine car running monitoring and control system, and relates to the technical field of coal mine safety production. The system comprises a monitoring system and a control system, wherein the monitoring system comprises a tension sensor mounted at the joint of a mine car and a steel wire rope, and a speed sensor and an inclination sensor mounted at the bottom of the mine car; the control system comprises a processor installed at the bottom of the mine car, a PLC, a brake assembly, an auxiliary wheel assembly and a limiting stopper assembly. And the processor is connected with the sensors and the PLC, analyzes and processes the collected tension, speed and inclination angle information, sends a braking instruction to the PLC, and controls the brake assembly, the auxiliary wheel assembly and the limiter assembly to work through the PLC. The mine car running state monitoring device is high in monitoring precision, good in safety, convenient to implement and low in cost, can be applied to inclined roadway transportation of an underground coal mine, monitors the running state of a mine car in real time, prevents mine car running accidents, and greatly improves safety of mine car transportation.