209results about How to "Avoid Hard Collisions" patented technology

The invention discloses a landing gear of a rotor unmanned aerial vehicle (UAV). The landing gear comprises a buffer cylinder, a ratchet mechanism and a pawl control circuit, wherein the upper end of the shield of the buffer cylinder is externally connected with a UAV steering engine shield, the lower end of the shield of the buffer cylinder is connected with the sleeve of the ratchet mechanism; the ratchet mechanism is provided with the sleeve, a sleeve shield, a ratchet bar, a pawl and a pawl reset spring; a pawl support is arranged on the sleeve; a ratchet bar sliding rail is arranged in the sleeve; a contact switch is arranged in the sleeve; the sleeve shield is screwed with the lower end of the sleeve; the ratchet bar extends into the sleeve and is matched with the ratchet bar sliding rail in a sliding manner; a ratchet bar support is arranged at the lower end of the ratchet bar and is in contact with the ground; ribs are arranged at two sides of the ratchet bar; the upper end of the pawl is hinged with the pawl support; the lower end of the pawl is matched with the ratchet of the ratchet bar; one end of the pawl reset spring is connected with the pawl support and the other end is connected with the pawl; the pawl control circuit is provided with a battery, a contact switch and an electromagnet; the contact switch is arranged in the inner wall of the sleeve and the electromagnet is arranged between the sleeve and the pawl of the ratchet mechanism.

The invention discloses an underwater robot retracting system and an application method thereof. An A-shaped frame can do hinging point pitching movement around the end part of a base through a swinging oil cylinder; a guide frame retracting mechanism comprises a guide frame, and a steel wire rope pulley and a cable guide pulley which are mounted on the guide frame; the top of the guide frame is in rotary connection with a connecting hinge point at the upper part of the A-shaped frame; an adjustable oil cylinder is arranged at each of two ends of the top of the A-shaped frame; the other ends of the adjustable oil cylinders are in rotary connection with the middle part of the guide frame respectively; and the adjustable oil cylinders are retracted to allow the guide frame to rotate around the connecting hinge point at the upper part of the A-shaped frame, so that a cable outlet hole of the guide frame is at a horizontal position all the time. According to the underwater robot retracting system and the application method thereof, disclosed by the invention, the guide frame and the adjustable oil cylinders are used as additional connecting rods and the angle of the guide frame can be adjusted, so that the cable outlet hole of an umbilical cable is at the horizontal position all the time and the umbilical cable can be released accurately along the cable outlet hole.

The invention relates to a novel logistics container for aquatic products. The novel logistics container comprises a container body, wherein a container door is formed in the front side wall of the container body, a cold insulation cavity covers the outside of the left side wall, the outside of the right side wall, the outside of the top wall and the outside of the rear side wall of the container body, a feed opening is formed in the top end of the cold insulation cavity, a discharge opening is formed in the bottom end of the cold insulation cavity, cold storage agents are poured into the cold insulation cavity, a temperature sensor is arranged in the container body, and an LCD display is arranged at the top outside the cold insulation cavity; a plurality of bar-shaped clamping grooves are formed in the left side wall and the right side wall of the container body, a plurality of trays are arranged in the container body, and the left ends and the right ends of the trays are embedded in the bar-shaped clamping grooves; a base is arranged under the container body, the bottom wall and the four corners of the container body are connected with the base through telescopic rods and helical springs, a positioning screw rod is in threaded connection to the base, and travelling wheels are arranged at the bottom of the base. Through the adoption of the structure of the novel logistics container disclosed by the invention, cold storage and fresh keeping can be effectively performed on the aquatic products, and the aquatic products are prevented from being collided during transportation, so that the use properties of the aquatic products are greatly improved.

The invention relates to the field of vibration resistance and damping of bridges, in particular to a main beam anti-falling beam and energy dissipation device with multiple protection functions and amanufacturing method thereof. The main beam anti-falling beam and energy dissipation device comprises a bridge pier, wherein support seat bedding stone is arranged above the bridge pier; a rubber support seat is arranged on the support seat bedding stone; a stay cable and a vibration damping device are arranged between the bridge pier and a beam body. The manufacturing method of the main beam anti-falling beam and energy dissipation device comprises the following steps of sequentially binding and installing reinforced bars of the bridge pier, horizontal embedded steel plates, and reinforced bars of longitudinal blocks; then, casting the concrete of the bridge pier and the longitudinal blocks, and installing a vibration damping bedding block; installing the rubber support seat, lifting thebeam body, and installing the stay cable. The main beam anti-falling beam and energy dissipation device has the advantages that under the function of small vibration, the longitudinal blocks with thevibration damping bedding blocks are used for vibration damping and energy dissipation so as to reduce the occurrence of rigid collision between the two adjacent beam bodies; under the function of large vibration, the longitudinal blocks are sheared, the functions of the stay cable are realized, the overlarge displacement amplitude of the beam body along the longitudinal direction and transversedirection is limited, and the occurrence of beam falling and vibration damage is prevented; the vibration resistance property of the whole bridge is improved, and the service life is prolonged.

The invention discloses an earthing clamp device. According to the earthing clamp device, a stay cord used for being connected with two earthing clamp bodies is arranged at the rear end of an earthing clamp main body; the earthing clamp is smoothly clamped on a power transmission line through an operating rod connected with a cylinder piece provided with an inverted cone cavity structure inside and an operating rod provided with a hook at the top end. Rigid collision between the earthing clamp and the power transmission line is avoided in the whole process; the earthing clamp is opened before being taken down, and scratch or breakage of the power transmission line caused by adopting a stay wire to pull the power transmission line in the conventional method is avoided; the operation method of the earthing clamp device is simple and convenient, the entire hanging and dismounting process of the earthing clamp is smooth and controllable, and security of the power transmission line is effectively guaranteed.

The invention discloses a construction platform for constructional engineering and using method. The construction platform comprises a bottom plate, universal wheels are fixedly connected to four corners of the bottom surface of the bottom plate correspondingly, hydraulic cylinders are fixedly connected to the front sides and the rear sides of the two side surfaces of the bottom plate correspondingly, supporting plates are fixedly connected to the bottoms of the output ends of the hydraulic cylinders, and storage grooves are longitudinally formed in the two sides of the surface of the top of the bottom plate. According to the construction platform for the constructional engineering and the using method, through cooperative use of a lifting plate, a hoisting rope, a winch, a placing plate,a rotating rod, a lifting hook, a moving plate, a supporting sleeve, an inserting hole, a moving rod, a moving groove and a moving sleeve, the construction platform can have the function of hoisting objects, so that the construction platform is more convenient to use, and the problems that when an construction platform is used, due to lack of the function of hoisting objects, a constructor needs to descend to the ground again to take a construction raw material when the constructor needs to construct the raw material, the construction time is greatly wasted through repeated operation, and therefore the construction efficiency of the construction platform is low are solved.

The invention discloses an anti-collision logistics robot with a cargo protection function, and relates to the technical field of robots, and the anti-collision logistics robot comprises a robot body, a triangular anti-collision plate, a connecting assembly, a connecting plate, a brake assembly, a protection assembly, a lifting assembly and wheels. The robot is simple in structure, the triangular anti-collision plate is arranged, hard collision between hard objects and the robot body can be avoided, objects can be protected during collision through the protection assembly, and when the triangular anti-collision plate collides with the front face of an obstacle, on one hand, the first spring and the second spring can play a role in buffering, and on the other hand, a brake plate can play a role in braking; by arranging the lifting assembly, when the inclined face of the triangular anti-collision plate collides with an obstacle, the robot body and the brake plate can move upwards, and the base is prevented from being damaged by the obstacle.

The invention discloses a clamping jaw mechanism. The clamping jaw mechanism comprises a device plate, a jacking air cylinder module arranged at the upper end of the device plate, a clamping jaw module arranged at the lower end of the device plate and used in cooperation with the jacking air cylinder module, folding air cylinder modules arranged on the portions, on the left side and the right side of the jacking air cylinder module, of the device plate, and a pressing plate module arranged on the device plate and used in cooperation with the folding air cylinder module. The pressing plate module comprises a pressing plate rotary shaft base, a pressing plate rotary shaft, a folding pressing plate and a folding pressing block, wherein the pressing plate rotary shaft base is arranged on the device plate; the pressing plate rotary shaft is arranged on the pressing plate rotary shaft base; the folding pressing plate is fixedly arranged on the pressing plate rotary shaft, and one end of the folding pressing plate is connected with the folding air cylinder module; the folding pressing block is fixedly arranged at the other end of the folding pressing plate. According to the clamping jaw mechanism, the clamping jaw module is arranged and used for clamping and downwards pressing a middle supporting paper board; the pressing plate module is arranged and used for pressing the middle supporting plate so that the middle supporting plate can be internally splayed, and accordingly the middle supporting plate can be placed more easily and conveniently.

The invention relates to the field of bridge construction, and particularly discloses an embedded beam falling prevention device which comprises a pier, a partition plate is fixed to the upper surfaceof the pier, the partition plate is perpendicular to the pier, a horizontally-arranged through groove is formed in the partition plate, a limiting column is horizontally and slidably connected into the through groove, the two ends of the limiting column extend out of the through groove, the end faces of two ends of limiting column are both inclined inwards; a sliding groove is vertically formed in the limiting column, a positioning column is vertically arranged in the sliding groove, the diameter of the positioning column makes contact with the side wall of the sliding groove, the two ends ofthe positioning column penetrate out of the limiting column to be connected with the inner wall of the through groove, and springs facing the positioning rod are fixed to the two ends of the slidinggroove; two sections of beam bodies are placed on the pier, the beam bodies are symmetrically placed relative to the partition plate, the upper surfaces of the beam bodies are flush with the upper surface of the partition plate, cavities are formed in the ends of the beam bodies, and the inner diameters of the cavities are equal to the outer diameter of the limiting column. The invention aims to solve the problem that the anti-falling beam facility and the beam bodies are rigidly impacted and the beam bodies are easily damaged during an earthquake.

The invention relates to a cooking device and particularly discloses a steaming pot without overflowing steam. The steaming pot comprises a pot body, a pot lid which can cover the pot body, and a condenser, wherein a steam leaking passage is arranged at the place where the pot lid and the pot body intersect and is connected with an input end of the condenser. The invention also discloses a steaming tool without overflowing steam. The steaming tool comprises the steaming pot, wherein a steam generator is arranged below the pot body of the steaming pot; a steam output opening of the steam generator is communicated with the interior of the pot body; the steam generator is communicated with the interior of the pot body through an upright pipe arranged at the steam output opening; and a nozzle is arranged on the end part of the upright pipe positioned in the pot body. An exhaust vent is formed in the steaming pot so that the steam leaking passage is communicated with the condenser, superfluous steam is condensed into water under the action of the condenser, the steam is prevented from being leaked, and comfort and safety of a dinning environment are improved.

The invention discloses a novel triangular track type wall climbing robot. The robot comprises a triangular vehicle body, two triangular track wheel assemblies, a driving device, a magnetic universal wheel and a detecting device, wherein each triangular track wheel assembly comprises a triangular bracket, a driving wheel, a guide wheel, a tensioning wheel, a supporting wheel, a triangular supporting frame, a track and a magnetic part; each triangular bracket is arranged on the triangular vehicle body; each driving wheel, each guide wheel and each tensioning wheel are arranged on the triangular brackets; the magnetic parts are uniformly arranged on the outer surfaces of the track; the triangular supporting frames are hinged to the triangular brackets; the supporting wheels are arranged on the triangular supporting frames; the driving device is connected with the driving wheels; the magnetic universal wheel is arranged on the triangular vehicle body; the detecting device is arranged on the triangular vehicle body. According to the novel triangular track type wall climbing robot, the two triangular track assemblies are combined into a magnetic core universal wheel; one plane is determined through three points, so that the robot can be stably attached on an arc-shaped surface; in addition, the magnetic parts and the magnetic universal wheels enable high absorbing capacity of the robot, and the robot can vertically stably climb on the arc-shaped surface.

The invention provides a rolling processing device of pole pieces for processing of a lithium ion battery, and relates to the technical field of rolling devices. The rolling processing device comprises a base, wherein a housing is fixedly mounted at the top of the base; the top of the housing is communicated with a feed hopper; a purification structure is fixedly mounted in the housing; and rolling structures are fixedly mounted on the two sides of the housing at the top of the base, and comprise discharge ports. According to the rolling processing device, the pole pieces of the lithium ion battery are effectively divided by allowing limiting rods to enter feeding pipelines, so that overlapped rolling of the pole pieces of the battery is avoided in a rolling process; rolling forces of allparts of the pole pieces of the lithium ion battery are uniform; and the compaction degree of the interior of the pole pieces of the lithium ion battery is raised. Air cushions are arranged, the volume of the air cushions is increased, the pole pieces of the lithium ion battery are extruded, and rolling forces are adjusted, so that the pole pieces of the lithium ion battery are subjected to appropriate force rolling; and rolling effects of the pole pieces of the lithium ion battery are improved.

The invention discloses an outdoor charging station capable of charging multiple automobiles at the same time. The charging station comprises a charging station bearing table, a protection ceiling andan emergency fire fighting box, wherein a plurality of automobile charging piles are arranged on the charging station bearing table at equal intervals, and fire detection terminals are arranged at the center positions of the tops of the automobile charging piles. According to the charging station, the fire detection terminals are used for automatically detecting fire information and then transmitting the fire information into a control processor, a main control electromagnetic valve and a nozzle electromagnetic valve are controlled to be opened by the control processor, a dry powder fire extinguisher storage tank is matched with a connecting guide pipe and a connecting branch pipe to supply fire extinguishing dry powder to a fire-fighting nozzle, and finally, the fire-extinguishing dry powder is sprayed out of the fire-fighting nozzle to extinguish fires on the automobile charging piles. The outdoor charging station capable of charging the multiple automobiles at the same time has theadvantages that emergency fire-fighting measures are provided, automatic detecting and self-extinguishing are realized, manual operation is not needed, and the safety is enhanced.

The invention provides a flexible expansion link mechanism, which is suitable to be connected with a driving device. The flexible expansion link mechanism comprises a rest and a minor strut bar, wherein the upper end of the rest is connected with the driving device; the lower end of the rest is provided with a major strut bar which protrudes outwardly; the rest is provided with a sliding channel for the minor strut bar to slide; the minor strut bar is clamped in the sliding channel and one end of the minor strut bar is elastically pressed against the rest; and the other end of the minor strut bar extends out of the sliding channel along the protruding direction of the major strut bar and goes over the major strut bar. Because the minor strut bar is elastically pressed against the rest, and one end of the minor strut bar extends out of the sliding channel along the protruding direction of the major strut bar and goes over the major strut bar, the flexible expansion link mechanism has the flexible buffer function , minimizes the acceleration when a gripper mechanism is opened or closed so as to avoid the hard collision of the gripper mechanism on laminated dielectric and further ensure that the laminated dielectric clamped by the gripper mechanism cannot be scratched or smashed caused by the extrusion when the gripper mechanism is opened or closed.

The invention discloses a lifting control structure and a mining dump truck, and belongs to the field of machine manufacturing. The lifting control structure comprises an input unit, a calculation and logical judgment unit, an output unit and an execution unit which are connected in order, wherein the input unit comprises a plurality of button switches, the calculation and logical judgment unit comprises a controller 1, the output unit comprises a plurality of proportional solenoid valves, and the execution unit comprises a lifting cylinder 2; and the plurality of the button switches comprise a lifting switch 3 and a lowering switch 4, and the plurality of the proportional solenoid valves comprise a lifting proportional valve 5 and a lowering proportional valve 6 which are respectively connected with the lifting switch 3 and the lowering switch 4 through the controller 1. The lifting control structure is characterized in that the button switches with simple structure and low cost are used for replacing operating handles and are combined with the proportional solenoid valves to control the action of the lifting cylinder, so that the intelligence is improved and the cost can be effectively reduced.

The invention discloses an intelligent soil sampler. The intelligent soil sampler comprises a machine body, wherein a machine body drill hole is formed in the center of the machine body; a first inner chamber and a second inner chamber are arranged in the machine body drill hole; a drill sleeve is arranged in the machine body drill hole; a drill sleeve gear is arranged on the drill sleeve; a first drive gear is arranged in the second inner chamber; the first drive gear is engaged with the drill sleeve gear; a drill sleeve through hole is formed in the center of the drill sleeve; a clamping groove and a drill rod are formed / arranged in the drill sleeve through hole; a clamping head corresponding to the clamping groove is arranged on the drill rod; a drill core is arranged in the drill rod; height adjusting devices are arranged on both sides of the machine body, and each of the height adjusting devices comprises a telescopic through hole corresponding to a machine body adjusting hole formed in the machine body; a third inner chamber and a fourth inner chamber are arranged in each telescopic through hole; a thread height adjusting rod is arranged in each telescopic through hole, and an elevating gear is arranged on each thread height adjusting rod; a second drive gear is arranged in each fourth inner chamber, and each second drive gear is engaged with the corresponding elevating gear; a universal roller is arranged at the end of each thread height adjusting rod. The intelligent soil sampler disclosed by the invention has the advantages of saving time, saving labor, being capable of improving efficiency and quality of soil sampling, and the like.

The invention discloses a method for reducing the vibration of a vehicle driving shaft, which comprises the following steps: measuring the main vibration frequency of the vehicle driving shaft; designing the size of each part of a shock absorber of the vehicle driving shaft; manufacturing a shock absorber shell, a shock absorber cover and middleware; installing the middleware in the shock absorber shell; filling the gap between the middleware and the shock absorber shell with lubricating oil; buckling the shock absorber cover on the shock absorber shell; and finally assembling the components on the vehicle driving shaft together. The invention also discloses the shock absorber for the vehicle driving shaft, which comprises the middleware, the shock absorber shell and the shock absorber cover, wherein the shock absorber shell is buckled with the shock absorber cover to form an annular enclosed space to receive the middleware; and the lubricating oil is filled between the middleware and the shock absorber shell. With the technical proposal of the invention, the method for reducing the vibration of the vehicle driving shaft and the shock absorber for the vehicle driving shaft can better absorb vibrations and noises transmitted by the vehicle driving shaft in a wider frequency range due to the application of the damping characteristic of the lubricating oil in vibrating to absorb the vibrations and the noises, thereby greatly improving the riding comfort of the vehicle.

The invention discloses an automatic film cutting mechanism for a circuit board film laminating machine, and relates to the antenna installation field. The automatic film cutting mechanism comprises alaminating machine body, the outer surface of the laminating machine body is connected with a maintenance door through a hinge, and a through hole penetrates through the outer surface of the maintenance door. A heat dissipation groove is formed at one side of the laminating machine body, and a bottom plate is fixed at the bottom of the laminating machine body. During mounting, a worker also pullsa pull ring to enable a limiting rod to overcome the resistance of a second spring to contract, then, the worker aligns one end of a mounting piece at a mounting groove, then, pushes the mounting piece into the mounting groove, and when the mounting piece is pushed to a certain extent and can not move continuously, the worker loosens the pull ring, so that one end of the limiting rod is driven tobe inserted into a limiting groove under the reset capacity of the second spring, the mounting piece is limited, and the mounting piece and a cutter are prevented from automatically sliding out of the mounting groove during working to influence the cutting. The automatic film cutting mechanism is easy to mount and dismount, is convenient to replace and maintain the cutter, and is practical and convenient.

The invention discloses a clamping lifting appliance which comprises a fixing plate, an installation plate connected with the fixing plate in a sliding manner, a power part arranged on the fixing plate and driving the installation plate to slide relative to the fixing plate, and a clamping block fixedly arranged on the installation plate. The clamping lifting appliance is simple in structure and low in manufacturing cost; the installation plate is moved through the power part, a workpiece is clamped by the clamping block, and the clamping lifting appliance can be suitable for workpieces in various sizes; and the fixing plate and the installation plate form a similar portal frame structure, the rigidity is good, load bearing is achieved depending on a linear guideway, and loads are large.

The invention aims to provide a lightweight artificial quartz stone and a production process thereof. The lightweight artificial quartz stone is jointly formed by a prefabricated material of an artificial board and a prefabricated material of a lightweight layer. The prefabricated material of the artificial board is prepared from the following components in parts by weight: 100 to 150 parts of white cement, 20 to 90 parts of silica powder, 200 to 300 parts of quartz chips, 50 to 100 parts of stone aggregate, 30 to 36 parts of water, 1.5 to 3 parts of a water reducing agent, 70 to 80 parts of resin, 5 to 10 parts of color paste and 0.1 to 0.2 part of a curing agent. The prefabricated material of the lightweight layer is prepared from the following components in parts by weight: 6 to 10 parts of hollow glass microspheres, 20 to 60 parts of silica powder and 30 to 70 parts of resin. The production process for the artificial quartz stone comprises the following step: S1, preparation of the prefabricated material of the artificial board: weighing raw materials consisting of 100-150 parts of the white cement, 20-90 parts of the silica powder, 200-300 parts of the quartz chips, 50-100 parts of the stone aggregate, 30-36 parts of the water, 1.5-3 parts of the water reducing agent, 70-80 parts of the resin, 5-10 parts of the color paste and 0.1-0.2 part of the curing agent, adding the raw materials into mixing equipment for mixing at normal temperature so as to obtain the prefabricated material of the artificial board for later use.

The invention discloses a triangular crawler wheel device comprising a triangular bracket, a driving wheel, a guide wheel, a tension wheel, a crawler belt and magnetic parts. The triangular bracket is arranged vertically. The driving wheel, the guide wheel and the tension wheel are arranged at three apexes of the triangular bracket. The magnetic parts are arranged on the outer surface of the crawler belt uniformly. A connection part is also connected to the triangular bracket. A first rotating shaft is arranged horizontally on the triangular bracket. The driving wheel is driven to rotate in the radial direction by the first rotating shaft. A second rotating shaft is arranged horizontally on the connection part. The driving wheel is driven to rotate in the axial direction by the second rotating shaft. The driving wheel is arranged above the guide wheel and the tension wheel, so that normal load directly transmitted to the driving wheel from the ground is eliminated. The driving wheel can rotate both in the radial direction and in the axial direction and is high in moving speed and flexible to control, thus the driving wheel can fit ground faces having different radians. Therefore, the triangular crawler wheel device has advantages of a wheel type device and a crawler type device at the same time, and the stable running of the driving wheel is ensured.

The invention discloses a helmet with an impact buffering function. The helmet comprises an inner helmet body and an outer helmet body, the outer helmet body is arranged on the outer side of the innerhelmet body, multiple brackets are arranged on the curved face of the top of the outer helmet body, rolling wheels are rotatably connected to the upper ends of the brackets and arranged in the same direction, clamping edges are fixedly connected to the edges of the lower sides of the outer helmet body, extension edges are fixedly connected to the edges of the lower sides of the inner helmet body,and limiting grooves are formed in the portions, on the outer wall of the inner helmet body, of the upper sides of the extension edges; a fixing frame is fixedly connected to the curved face of the top of the inner helmet body and fixedly connected with multiple elastic airbags which are filled with inert gas, multiple longitudinal damping mechanisms are fixedly connected between the clamping edges and the extension edges, and multiple transverse damping mechanisms are fixedly connected between the inner helmet body and the outer helmet body. The helmet with the impact buffering function is provided with a triple buffering structure, buffering springs can absorb impact energy, the elastic airbags can disperse an impact force, and a head protection pad avoids hard collision between the inner helmet body and the head, so that the helmet has an excellent buffering effect.

The invention discloses a ceramic grinding body ball mill. The ceramic grinding body ball mill comprises a charge device, a discharge device, a cement mill and a transmission device, wherein a bin separating plate is arranged in the cement mill for separating an inner cavity of the cement mill into a first bin body close to the charge device and a second bin body close to the discharge device; ceramic grinding bodies of different grades are separately arranged in the first bin body and the second bin body; the bin separating plate comprises a charge grid plate, a discharge grid plate, a plurality of lifting plates and a central circular material-passing cone; a sorting bin is formed between the charge grid plate and the discharge grid plate; the central circular material-passing cone extends into the second bin body from the inner part of the sorting bin; and one end of each lifting plate is connected with the central circular material-passing cone, and the other end of each lifting plate is spaced with a barrel body of the cement mill. The ceramic grinding body ball mill adopts a ceramic grinding body, can reduce weight of the ball mill, and reduces energy consumption of the ballmill; andthe central circular material-passing cone is arranged, so that an empty material region is not formed after materials in the cement mill pass through the bin separating plate, and the materials are easily dispersed uniformly, and therefore, grinding efficiency is improved, and ventilation of the system tends to be stable.

The invention relates to a crane trolley anticollision device which comprises a fixed seat; a mounting seat is connected to the right part of the fixed seat in a clamping manner; a guide shaft is arranged at the left part of the mounting seat; the other end of the guide shaft is connected with the fixed seat through a nut; a spring is connected to the outer wall of the middle part of the guide shaft in a sleeving manner; one end of the spring is connected with the mounting seat; the other end of the spring is connected with the fixed seat; an anticollision block is connected to the right partof the mounting seat in the clamping manner; a distance measurement device is arranged on the upper side surface of the fixed seat and is provided with a controller; an ultrasonic emission module, a display, an alarm and an ultrasonic receiving module are connected to the output end of the controller through signal wires respectively; and a press key module is connected to the input end of the controller through a signal wire. The crane trolley anticollision device provided by the invention has the advantages of reasonable structure, convenience in use, high safety performance and low runningcost.

The invention relates to a novel cable bridge cover plate. The novel cable bridge cover plate comprises a plate body, wherein the plate body comprises a left inclined plate and a right inclined plate; a left vertical plate is connected with the left side of the left inclined plate, and a right vertical plate is connected with the right side of the right inclined plate; a front rod is connected between the front ends of the top parts of the left and right vertical plates, and a back rod is connected between the back ends of the top parts of the left and right vertical plates; a first front buffering plate and a second front buffering plate are arranged under the left and right ends of the front rod respectively; a first back buffering plate and a second back buffering plate are arranged under the left and right ends of the back rod respectively; a first front telescopic rod and a second front telescopic rod are connected between the first and second front buffering plates and the front rod; a first back telescopic rod and a second back telescopic rod are connected between the first and second back buffering plates and the back rod; helical springs are arranged on the exteriors of the telescopic rods separately in a sleeving manner; a left threaded through hole and a left locking screw rod are distributed on the left vertical plate; and a right threaded through hole and a right locking screw rod are distributed on the right vertical plate. By adoption of the structure, the novel cable bridge cover plate can be mounted conveniently and rapidly; and in addition, hard collision and overweight load of falling items can be effectively avoided.

The invention discloses a fodder feeding device with a breaking function, and a use principle. The fodder feeding device comprises a box body, wherein the bottoms of the surfaces of two sides of the box body are independently fixedly connected with a supporting plate; the top of the inner side of each supporting plate is fixedly connected with a bearing plate; and the top of each bearing plate isfixedly connected with the bottom of the box body. Through the cooperated utilization of conveying shafts, spiral lifting vanes, electric expansion links, bearing pedestals, concave gathering plates,isolation plates, a screening frame, breaking wheels, rotary motors, material returning inclined plates, baffle plates, a material returning hole, a blocking plate, an inclined screening net and a material returning groove hole, smashed fodder is broken after being sieved, so that the feeding effect of the fodder feeding effect is better, and the problems that the nature of animals fed by the fodder feeding device is poor since the smashed fodder can not be broken after being sieved and the broken fodder has a big size difference so as to be unfavorable for animals in eating when the fodder feeding device is used can be solved.