38results about How to "Reduced gravitational potential energy" patented technology

The invention discloses an anti-falling device for a high-altitude robot based on rotation in cooperation with gravity sensing. The anti-falling device structurally comprises an anti-skid foot stool,a support, a bearing connecting seat, a rotating blade and a sensitive anti-falling device. The rotating blade stops rotating together with a gear connecting rod, a rotating movable ring descends andis connected with an electric power transmission ring; meanwhile, an unmanned aerial vehicle starts to fall freely at high altitude, and a gravity sensor senses gravitational potential energy at the moment; and then a power transmission block can start a control power supply only by simultaneously triggering the unmanned aerial vehicle and the gravity sensor. The control power supply simultaneously starts an extrusion switch device and a loosening switch device, the unmanned aerial vehicle is prevented from moving up and down in high-altitude operation to trigger a single switch, and the appearance size is prevented from being increased, so that the starting of the anti-falling device is safer and more accurate; a parachute is ejected upwards together with a limit elastic block, by a parachute mode, it is sufficient to cope with vertical height differences, the gravitational potential energy is directly reduced by reducing the descent speed, and the protection effect of the unmanned aerial vehicle is fundamentally improved.

The invention discloses a new nodular cast iron pouring system including a sprue, the sprue is provided with a pouring cup used for pouring a liquid metal, left and right sides of the sprue are connected with cross pouring gates, each cross pouring gate is provided with a plurality of ingates, the ingates are connected with a casting cavity, and are used for leading a metal liquid to the casting cavity, the sum of the cross-sectional areas of the ingates is greater than the sum of the cross-sectional areas of the cross pouring gates, the sum of the cross-sectional areas of the cross pouring gates is greater than the cross-sectional area of the sprue, the ratio of the sum of the cross-sectional areas of the ingates to the cross-sectional area of the sprue is 1.85-2.15, and the ratio of the sum of the cross-sectional areas of the cross pouring gates to the cross-sectional area of the sprue is 1.65-1.45. By the way, the new nodular cast iron pouring system has small impact on the casting cavity, greatly reduces defects of sand holes, reduces iron liquid gravity potential energy, meanwhile provides excellent slag prevention effect, reduces the defects of the sand holes and slag holes, and greatly improves the internal and surface quality of nodular iron castings.

The invention discloses a community running machine. The community running machine comprises a support frame and a pedal, wherein an adjusting assembly is arranged on the support frame, and the adjusting assembly adjusts the inclination angle of the pedal; a rolling assembly is arranged on the pedal, the rolling assembly comprises a rolling shaft and a linkage plate, a child enables the rolling shaft to rotate by virtue of the friction between the feet and the rolling shaft, and thus the purpose of exercising the body is achieved; a rotation speed switch is arranged, so when the rotation of the rolling shaft is too fast, the adjusting assembly is used for adjusting the inclination of the pedal to be the minimum, the vertical distance between the child and the ground is reduced, the self gravitational potential energy is reduced, the drive force for the rolling shaft is reduced, and the rotation speed of the rolling shaft is reduced; when the inclination of the pedal is adjusted to be the minimum, the linkage plate moves towards the direction facing the support frame, a deceleration assembly is arranged, the deceleration assembly comprises butting parts, when the linkage plate slides to the side, close to the support frame, of a first chute, the butting parts abut against the end part of the rolling shaft, then the rotation of the rolling shaft is hindered, the rotation speed ofthe rolling shaft is further reduced, and thus the child can play the community running machine safely.

The invention belongs to the technical field of spinal fusion, in particular to a bone crushing device for spinal fusion surgery, and provides the following scheme that the bone crushing device comprises a base, supporting plates are fixedly connected to the two ends of the outer wall of the top of the base, and the outer walls of the opposite sides of the two supporting plates are fixedly connected with the same bone crushing box; the outer walls of the tops of the two supporting plates are fixedly connected with the same top frame, and the outer wall of the bottom of the top frame is fixedly connected with two second air cylinders. According to the bone crushing device, the collecting assembly is arranged, after bone crushing operation is finished, bone is retreated through the retreatment assembly, then the bone is guided to the position above the collecting frame through a net rack and a flow guide plate, in the descending process, the bone is in contact with a contact buffer rod arranged in the collecting frame, and the descending height of crushed bone is shortened; therefore, the gravitational potential energy of descending is reduced, it is ensured that after falling into the collecting frame, the garbage is not damaged due to collision and collected through the collecting assembly, and convenience and high efficiency are achieved.

The invention belongs to the field of resource recycling, and particularly relates to a building waste resource recycling device. The device comprises a movable cover plate, a feeding cylinder is arranged at the bottom of the movable cover plate, the bottom of the movable cover plate is fixedly connected with the top of the feeding cylinder, a processing cylinder is arranged at the bottom of the feeding cylinder, the bottom of the feeding cylinder is fixedly connected with the top of the processing cylinder, a discharging cylinder is arranged at the bottom of the processing cylinder, the bottom of the processing cylinder is fixedly connected with the top of the discharging cylinder, auxiliary cylinders are symmetrically arranged at the top of the discharging cylinder, the top of the discharging cylinder is fixedly connected with right ends of the auxiliary cylinders, transmission columns are symmetrically arranged at the left end of the processing cylinder, the left end of the processing cylinder is movably connected with the right ends of the transmission columns, roll shafts are symmetrically arranged in the processing cylinder, the inner wall of the processing cylinder is movably connected with two ends of the roll shafts, a filtering mechanism is arranged under the roll shafts, and the two ends of the filtering mechanism are fixedly connected with the inner wall of the processing cylinder.

The invention discloses a shifting and gliding mechanism for a carbonless trolley up and downhill, which includes a power transmission assembly and an electric control assembly; the power transmission assembly includes a rear driving wheel half shaft, a rear driven wheel half shaft and a tapered bush The winding shaft and the rear driving wheel semi-shaft are connected with an axially movable inner and outer spline sleeve through a spline, and the sleeve and the winding shaft are connected by two pairs of constant mesh gears; the electric control component includes a single-chip microcomputer and is electrically connected to the single-chip microcomputer Infrared pair tube, wheel speed sensor and two DC electromagnets that can shift the constant mesh gear; when going up and downhill, the single-chip microcomputer sends different commands to control different DC gears according to the electrical signals sent by the infrared pair tube and grating wheel speed sensor The power on and off of the type electromagnet makes the power transmission route switch between two pairs of constant mesh gear pairs, and completes the gear conversion between the flat road and the ramp. The invention has the advantages of being able to carry out intelligent detection, accurately changing the driving force, saving gravitational potential energy and making the traveling speed of the trolley uniform, and the like.

The invention relates to the technical field of machine tool beds, and discloses a flow-guiding anti-splashing mechanism for preventing cooling water from splashing out of a water tank. The flow-guiding anti-splashing mechanism comprises a flow guiding unit and an anti-splashing unit which are arranged below a cooling water self-flowing part of a machine tool, the flow guiding unit is arranged close to the end of the cooling water self-flowing part, the flow guiding unit comprises an L-shaped guiding flow-division plate and a plurality of first leakage holes formed in the guiding flow-divisionplate, the guiding flow-division plate comprises a guiding part and a flow-division part, the plurality of first leakage holes are uniformly distributed on the flow-division part, one end of the flow-division part is arranged at the bottom end of the guiding part and is positioned on one side of the cooling water self-flowing part, the other end of the flow-division part is positioned on the other side of the cooling water self-flowing part, and the anti-splashing unit is located beside the flow guiding unit and is far away from the end of the cooling water self-flowing part. According to thescheme, the cooling water can be prevented from splashing out of the water tank, so that the possibility that a workshop is polluted is reduced.

The invention provides a chemical tool protection box with an anti-dropping function. The chemical tool protection box comprises a protection box body, a top press plate, an outer covering box body, avibration reduction spring layer, a buffer layer, a lateral edge protection air pad, a placing groove and a top protection air pad, wherein the top press plate is positioned on the top of the protection box body; the top press plate and the protection box body are mutually embedded; the buffer layer is positioned inside the protection box body; the buffer layer is bonded to the protection box body; the vibration reduction spring layer is positioned at the left side of the inside of the buffer layer and is fixedly connected with the buffer layer; the outer covering box body is positioned at the left side of the inside of the protection box body and is provided with the buffer layer; the buffer layer is made of multilayer vibration reduction materials; the vibration materials become harderfrom the innerst layer to the outset layer ; the peripheral dimension of the buffer layer is identical to the inside dimension of the protection box body; through the buffer layer, the gravity potential energy of the tool box after falling can be reduced to the minimum through the buffer layer; the damage of appliances inside the tool box can be avoided; the chemical tool protection box is applicable to the production and use of the chemical tool protection box with the anti-dropping function; good development prospects are realized.

The embodiment of the invention discloses printing equipment capable of preventing ink deposition. The printing equipment comprises a main ink box, a second-level ink box, a spray head, an ink inlet pipe, an ink outlet pipe, a liquid level sensor, a control circuit and a circulating pump, the ink inlet pipe is connected with the main ink box and the spray head, the ink outlet pipe is connected with the spray head and the second-level ink box, the input end of the circulating pump is connected with the second-level ink box, the output end of the circulating pump is connected with the main ink box, in the vertical height, the bottom position of the main ink box is higher than the bottom position of the second-level ink box and lower than the top position of the second-level ink box, the liquid level sensor is used for sending a second-level ink box liquid level highest signal to the control circuit when the liquid level of the second-level ink box reaches the liquid level highest point; and the control circuit is used for controlling the circulating pump to start when receiving the highest liquid level signal of the second-level ink box. According to the embodiment of the invention, the ink in the spray head can flow, and the deposition of the ink in the nozzle is reduced.

The invention provides a sponge grinding block production line. The sponge grinding block production line comprises an uncoiling device, a surface treatment device, a sand embedding device, a drying device and a sponge combination device which are sequentially arranged in the thin film operation direction. The invention further provides a sponge grinding block production method. The method adopts the above devices and includes the following steps of uncoiling, surface treatment, static sand embedding, drying and sponge combination. Continuous and automatic machining can be sequentially finished on the same production line, the occupied space is small, a specially-assigned person on duty is not needed in all the processes, therefore, the labor force is saved, the labor intensity is relieved, and the production efficiency is improved; a thin film is subjected to surface treatment through the production method, the surface of the thin film is rough, the adsorption capacity can be improved, and gluing is more uniform; and by means of a metal layer electroplated on the surface of the thin film, the strength of the thin film is improved, gluing and sand embedding are facilitated, and the product quality is further guaranteed.

The invention discloses a biomass gasification grate ash device, comprising a grate, the upper end of the grate is connected with the ash outlet at the bottom end of the gasification furnace, the lower end of the grate is connected with the ash hopper, the lower end of the ash hopper is fixed with a sealed water tank and Connected, the sealed water tank is filled with condensate, the side of the sealed water tank is equipped with a slag collection box, and the slag collection box is equipped with a U-shaped liquid-sealed pipe, and the end of the U-shaped liquid-sealed pipe near the sealed water tank is connected to the sealed water tank. There is a slag pushing mechanism located at the liquid level of the condensate. The slag pushing mechanism is used to push the ash floating on the liquid surface of the condensate into the U-shaped liquid seal tube. It is used to remove the ash and slag in the U-shaped liquid seal pipe to the slag collection box. The biomass gasification furnace grate ash device can remove the ash on the surface of the condensate in time to prevent the ash hopper from being blocked by the ash.

This application relates to a shock-absorbing laying method for pipelines. By setting an inclined storage plate in the body for storage, the single pipeline can slide out from the lower end of the storage plate under the action of its own gravity, and the single pipeline can be removed by the blanking assembly Release one by one from the lower end of the storage board to the inner side of the buffer conveyor belt, and slide the pipeline unit to the lowest point of the buffer conveyor belt to wait for release, which reduces the gravitational potential energy of the pipeline unit, and drives the buffer conveyor belt to rotate through the drive to make the port move. At the lowest point, the pipeline monomer falls from the opening, thereby completing the placement of the pipeline monomer, which is conducive to reducing the work intensity of the construction personnel. Probability of damage to the pipeline monomer.

The invention discloses a double-layer battery trailer for new energy vehicles and relates to the technical field of battery trailers. The invention includes a box body, a conveying platform, an electric screw device, a transmission device and a battery cover plate; the battery cover plate and the electric screw screw device are threaded and rotated; the battery cover plate is slidably matched with the box body; the transmission device and the battery cover plate are meshed for transmission Cooperate. In the present invention, the bracket is designed as a frame structure, which saves materials and reduces its own weight; through the meshing transmission of the rotating gear and the rack, the faulty battery is transferred to the intermediate transfer platform, and the faulty battery is transferred to the box through the conveying platform At the bottom, the gravitational potential energy of the faulty battery is reduced to ensure the stability of the entire device; the spare battery is lifted by the electric screw device; the purpose of quickly replacing the new energy battery is realized, and it is guaranteed that people can replace the spare battery independently in case of emergency , which brings convenience to people's travel.