382results about How to "Play a role of buffer protection" patented technology

The invention discloses a gallium nitride light emitting diode and a preparation method thereof and belongs to the field of light emitting diodes. The method comprises the following steps: providing a foreign substrate, and depositing a first buffering layer on the foreign substrate by taking a first temperature as a growing temperature; depositing a second buffering layer on the first buffering layer and enabling the second buffering layer to grow at a second temperature from the time of beginning to grow to a first pre-set time, wherein the first temperature is lower than the second temperature and the differential value range of the first temperature and the second temperature is 410-460 DEG C; depositing a third buffering layer on the second buffering layer by taking a third temperature as the growing temperature, wherein the second temperature is lower than the third temperature; and sequentially depositing an N type contact layer, a light-emitting layer, an electronic barrier layer and a P type contact layer on the third buffering layer to finish the preparation of the gallium nitride light emitting diode. The light emitting diode is prepared by adopting the method. The growing starting temperature of the second buffering layer is between the growing temperature of the first buffering layer and the growing temperature of the third buffering layer and the second buffering layer has the buffering and protection effects on the third buffering layer.

The invention discloses a novel optical fiber coiling device of a laser device. The optical fiber coiling device includes a coiling motor, a supporting frame, a fixing plate, a base, an adjustable conveying plate structure, a rapid rotation seat structure, a rapid disassembly optical fiber coiling wheel structure, a connecting shaft, a coupling, a buffering rubber roller, a fixing shaft, a connecting sleeving, a baffle ring and a main switch. According to the novel optical fiber coiling device of the laser device, through the arrangement of the buffering rubber roller, the fixing shaft, the connecting sleeving and the baffle ring, the problem that the optical fiber is too hard resulting in the fact that coiling is broken in the coiling process can be prevented, and the effect of cushion protection can be achieved. Through the arrangement of a conveying connection bolt and nut and a fixing adhesive disc, safe fixation is convenient to conduct in the conveying process, and stability andreliability in the conveying process are ensured; and through the arrangement of a conveying fixing steel plate and a damping spring, the effect of cushion protection can be achieved and the problem that violent waggle appeared in the conveying or coiling process affects the work of conveying or coiling is prevented.

The invention discloses a damping outdoor power distribution cabinet with a fireproof function. The damping outdoor power distribution cabinet with a fireproof function includes a pedestal, wherein the top of the pedestal is connected with a cabinet body through a damping device; a protection box is fixedly arranged at the bottom in the cabinet body; a storage battery is fixedly arranged at the bottom in the protection box; a control circuit board is fixedly arranged at the top in the protection box; a fire extinguisher is fixedly arranged on the top wall in the cabinet body; a fire extinguisher valve employs an electromagnetic valve; the bottom of the left and right sides of the cabinet body are uniformly equipped with a plurality of air inlets; the top of the left and right side walls ofthe cabinet body are uniformly equipped with a plurality of air outlets; a motor is fixedly arranged at the top of the protection box; and a motor shaft at the top end of the motor is fixedly provided with a fan. By setting the damping device, the damping outdoor power distribution cabinet with a fireproof function can support the cabinet body, so that buffer protection effect can be realized when an external object collides the damping outdoor power distribution cabinet with a fireproof function, thus being conductive to stable operation of the electrical components in the power distributioncabinet, and being convenient to use outdoors. The damping outdoor power distribution cabinet with a fireproof function performs heat radiation on the power distribution cabinet through blowing of the fan, thus being able to actively perform cooling, and having preferable cooling effect.

The invention discloses a sorting device of a logistics automatic conveyor line. The sorting device comprises a light swing arm rotating with a rotating shaft as the axis. The light swing arm is connected with a crank and connection rod mechanism driving the light swing arm to swing. The crank and connection rod mechanism is connected with a drive device. By setting the connection point position of the crank and connection rod mechanism and the light swing arm, when the light swing arm is in the contraction state, the connection point of a driven rod and a crank of the crank and connection rod mechanism is not located at the dead center position of the crank and connection rod mechanism. By means of the sorting device, the sorting accuracy and efficiency can be improved, the structure is more simplified, and lightness is achieved on the premise that the swing arm strength is ensured; and by further controlling the position of the connection point of the driven rod and the crank when the swing arm is in the contraction state, the swing arm can slow down in the retraction process with the help of the resistance of the dead center position of the crank and connection rod mechanism, stop of the crank and connection rod mechanism is facilitated, meanwhile, the influences of internal force of the dead center position to the crank and connection rod mechanism during start can be avoided, and start of the crank and connection rod mechanism is conveniently driven.

The invention provides a method and a device for correct lateral deviation of a permanent magnet group in a maglev traffic device. The device includes a control unit, a track, a permanent magnet, a sensor and an electromagnet. The invention provides a levitation force through magnetic mutual exclusion between the permanent magnet and the track, A closed-loop control system is formed by a sensor, acontrol unit and an electromagnet. The control unit in the closed-loop control system performs PID operation on the data obtained by the sensor to obtain a decreasing current, and the current excitesthe electromagnet to generate a magnetic field and gradually corrects the lateral bias of the magnet. The PID control method can gradually reduce the force of the magnetic field generated by the excitation current on the bogie, As that bogie move more and more slowly, the system can also be cushioned and protect, so that the magnetic field excited by the bogie can keep the permanent magnet arrayof the track from contacting with the permanent magnet array of the vehicle, and the lateral deviation of the maglev system can be corrected.

The invention relates to a noncircular part deburring robot based on force compensation, belonging to the technical field of hydraulic transmission detection. The robot comprises a rack, a workpiece clamping tool and a control circuit, wherein a vertical moving mounting plate is mounted on the rack; a guide upright and the vertical moving mounting plate form a vertical moving pair; a horizontal moving mounting plate is mounted on the vertical moving mounting plate; a track control output end of the control circuit is connected with the controlled ends of Y-axis and X-axis servo motion devices respectively; a telescopic grinding head and a compensation shaft motion device are mounted on the horizontal moving mounting plate; the stretching/retraction direction of the grinding head faces the workpiece clamping tool and is vertical to the moving direction of the horizontal moving mounting plate; the compensation shaft motion device comprises a servo electric cylinder; a stretching end of the servo electric cylinder is coaxial with a spring guide rod; a front spring and a back spring are mounted on the two sides of a mounting seat respectively; a pre-tightening member is arranged at the front end of the front spring; the back spring is connected with the stretching end of the servo electric cylinder; and a signal output end of the tension/pressure sensor is connected with the controlled end of the servo electric cylinder through the control circuit.

The invention discloses a wall scraping device for building construction, which comprises a vehicle body, a sliding support frame is slidably mounted on the vehicle body, an upright post is verticallyfixed on the sliding support frame, a roof is fixedly arranged on the top of the upright post, a positive and reverse motor I is fixedly arranged on the sliding support frame, the side wall of the vehicle body is transversely provided with a guide groove, the inner side wall of the sliding support frame is fixedly provided with a slide block which is slidably embedded in the guide groove, and theside wall of the screw sleeve rod is connected with a rotating shaft through a bearing; the scraping device disclosed by the invention is ingenious in structure, reasonable in design and convenient to adjust, wall skin scraping by blades is achieved by rotating the scraping mechanism. The scraping mechanism can reciprocate up and down, so that the scraping range of the wall surface is greatly increased, the arrangement of the rotating seat and the sliding post within and the limiting spring plays an effective buffering role in the wall scraping process, thereby improving the scraping qualityof the wall skin, simultaneously playing a buffer protection role on the blade, prolonging the service life and improving the stability.

The invention provides a building basket and an impact force buffer method implemented when the basket falls down by accident. The method solves the problem that in the prior art, when workers work atheights in the basket, impact is caused when the basket falls down by accident, and serious damage is caused to workers. The basket comprises a basket body, a steel wire rope and a buffer device; thebasket body is connected to the steel wire rope, the buffer device is arranged at the bottom of the basket body, by adopting the building basket and the impact force buffer method implemented when the basket falls down by accident, the grounded impact force can be released, the basket is grounded after fracturing, the basket buffer protecting effect can be achieved, the impact force caused when the basket is grounded can be repeatedly absorbed and buffered, all or most basket impact force caused to the ground can be offset, hard collision between the basket and the ground is avoided, and damage caused to people inside the basket is relieved or avoided.

The invention relates to the field of automobile batteries, and in particular to a self-adaptive protection device for an automobile battery pack and a using method thereof. The device includes a protective shell, the battery pack is arranged in the protective shell; cooling liquid for cooling the battery pack is filled in the protective shell; a buffer protection mechanism is arranged on the inner bottom surface of the protection shell; the buffer protection mechanism is connected with the bottom of the battery pack; a touch control mechanism is arranged on the buffer protection mechanism; anadjusting mechanism is arranged on the outer side of the protective shell; the touch control mechanism can make contact with the adjusting mechanism in an abutting and buckling mode, a first heat exchanger and a second heat exchanger which are used for conducting circulating cooling on cooling liquid and an audible and visual alarm with an alarm function are fixed to the side wall of the protective shell, and the adjusting mechanism is electrically connected with the first heat exchanger, the second heat exchanger and the audible and visual alarm. According to the self-adaptive protection device for the automobile battery pack and the using method of the self-adaptive protection device, the cooling effect on the battery pack and the safety guarantee effect on the battery pack are improved.

The invention relates to a safe and reliable charging pile for a new energy vehicle, include a housing, protection mechanisms and four cushioning mechanisms, The protective mechanism comprises a rack,gear, connecting shaft, spool, connecting wire, protective cover, guide bar, fixing blocks, two first springs, two stop plates and two lock assemblies, The cushioning mechanism comprises a cushioningplate, a first buffer assembly and two second buffer assemblies, A first buffer assembly includes a buffer block, a drive lever, a guide unit and two first cushioning units, the safe and reliable charging pile for the new energy vehicle, As that protection mechanism protect the charging head from being damaged by the external environment when the charging head is not in use, the safety of the charge pile can be improved, and as the buffer mechanism plays a cushioning protection role to the shell, the damage of the shell when the shell is impacted can be reduced, and the service life of the charging pile can be prolonged.

The invention discloses a helicopter rotary steering engine and a helicopter. The helicopter rotary steering engine comprises a power source and a speed reduction output assembly. The helicopter rotary steering engine and the helicopter are compact in structure, small in size and convenient to mount and dismount; a circuit board is fixed at the bottom of the steering engine lower shell through a silica gel block that plays a role in buffering and protecting the circuit board, so that circuit pins are protected from being damaged, and heat dissipation of the circuit board is facilitated; the shell is made of an aluminum alloy material and light in weight, high in strength and rapid in heat dissipation; each group of gears are positioned by adopting double bearings, so that the whole movement is more stable and reliable, the noise is low, tooth surface meshing is increased, tooth surface abrasion is reduced, and the service life of the gear groups are prolonged; a motor and a potentiometer are arranged in parallel, so that the space is effectively shortened, the size of the shell is reduced, and the weight of the shell is reduced; and each pair of rolling bearings is directly embedded in the shell structure, the integrated design improves the strength, and the arrangement space is saved.

The invention discloses a slope protection device for engineering investigation, and belongs to the technical field of engineering slope protection. A buffer seat and a buffer encapsulation layer are separated, so that when the slope protection device is impacted by falling rocks of a slope, the buffer encapsulation layer is used as a first buffer defensive line; the liquid buffer part in the buffer encapsulation layer is matched with an outer encapsulation, so that the impact force is counteracted, and the buffer encapsulation layer is protected by virtue of liquid fluidity; the falling rocks which partially counteract the impact force fall onto the buffer seat, and the buffer seat and a plurality of buffer bodies are used as a second buffer defensive line; the buffer seat is separated from the buffer encapsulation layer after being pressed downwards so as to impact the buffer bodies on the bottom end of the buffer seat, and the plurality of buffer bodies are evenly stressed, so that the downward pressing speed of the buffer seat is greatly reduced; and after an upper buffer layer is separated from the buffer encapsulation layer, the falling rocks can fall down through a gap formed between the upper buffer layer and the buffer encapsulation layer, so that the impact force of the continuous falling rocks on the buffer seat is further reduced, and the buffer seat and the bottom structure of the buffer seat are effectively prevented from being damaged under great pressure.

The invention provides a heat treated peanut meal-based formaldehyde-free adhesive. The adhesive is prepared from the following raw materials, in parts by weight: 150-220 parts of water, 50-70 parts of heat treated peanut meal, 1.6-2.2 parts of lauryl sodium sulfate, 1-1.6 parts of nano silicon dioxide, and 45-65 parts of PAE. The adhesive provided by the invention has no formaldehyde, is safe and environmentally friendly, and has high bonding strength and strong water resistance, and the bonding strength of a poplar plywood prepared from the adhesive can meet requirements of a national class I ordinary plywood in China.

The invention discloses a pesticide spraying and weeding integrated device. The pesticide spraying and weeding integrated device comprises a traveling plate trailer, a spray head and a telescopic cutting head, the spray head is connected to a pesticide pump through a pesticide spraying pipe, the pesticide pump is connected with a pesticide storage box, the pesticide pump and the pesticide storagebox are installed on the traveling plate trailer, the telescopic cutting head is installed at the bottom of the traveling plate trailer in a suspended mode, the pesticide pump and the telescopic cutting head are driven by the same power mechanism, and the power mechanism is installed on the traveling plate trailer. A weeding mechanism and a pesticide spraying mechanism are integrated on the traveling plate trailer, integration of two functions is achieved, automatic use of the two functions is achieved simultaneously, the efficiency is high, the operation cost is low, time and labor are saved,the telescopic cutting head of a telescopic structure is adopted, the telescopic cutting head can adapt to the uneven ground, tool jamming is avoided, and the operation risk of workers is reduced.

The invention relates to the field of urban pipe rack building construction, and discloses a comprehensive pipe rack structure which comprises a pipe rack main body. A natural gas cabin, a comprehensive cabin and a rainwater cabin are arranged in the pipe rack main body, the comprehensive cabin and the natural gas cabin are located on the two sides in the pipe rack main body correspondingly, the rainwater cabin is located in the middle in the pipe rack main body, a first fireproof sealing wall is arranged between the natural gas cabin and the pipe rack main body, a first fireproof sealing wallis arranged between the rainwater cabin and the pipe rack main body, a second fireproof sealing wall is arranged between the rainwater cabin and the natural gas cabin, and a subsection valve is arranged in the natural gas cabin to divide the natural gas cabin into independent natural gas cabin sections. The fireproof sealing performance of the natural gas cabin is improved through the second fireproof sealing wall arranged between the natural gas cabin and the rainwater cabin, the comprehensive cabin is protected through the rainwater cabin, and the potential hazards of the natural gas cabinto the comprehensive cabin are reduced.

The invention discloses a fiberboard prepressing device. The fiberboard prepressing device comprises a base and a chassis, wherein an air cylinder is arranged in the chassis; the bottom of the air cylinder is connected with a top plate through a piston rod; the bottom of the top plate is connected with a prepressing plate through a damping spring; the chassis is connected with the base through a support frame; a processing table is arranged at the top of the base; clamping plates are respectively connected with two inner walls of the support frame close to the processing table through adjusting screws; a dust collecting cover is arranged at the top of the base close to two sides of the processing table; and a dust collecting pump and a dust collecting box are arranged in the base. According to the invention, the clamping plate is tightly pressed against the edge of a fiberboard blank by adjusting the screws, so that the fiber blank can be firmly fixed on the processing table, and the prepressing processing effect is prevented from being affected due to the sliding of the fiberboard blank; and the fiber debris and flying dust generated during the prepressing process of the board blank can be effectively cleaned through the arrangement of the dust collecting cover and the dust collecting pump, and the cleanness and sanitation of the working environment are protected.

The invention discloses a novel distribution transformer installation and transfer device, which relates to the field of power auxiliary equipment. A new installation and transfer device for distribution transformers, including a gantry frame, the gantry frame includes a support frame, universal wheels are arranged at the bottom of the support frame, rails are arranged under the universal wheels, a first groove is arranged on the rails, and a Adjusting rod, the first threaded hole is set on the support frame, the second threaded hole is set on the adjusting rod, and the cross-beam fixing sleeve is set on the top of the adjusting rod. A third threaded hole is arranged on the sleeve, a fourth threaded hole is arranged on the beam, a monorail trolley is arranged on the beam, and a chain hoist is arranged on the monorail trolley. The beneficial effect of the present invention is that: the present invention not only improves the installation efficiency of the distribution transformer, but also can reduce the damage to the distribution transformer during the installation process.

The invention relates to a device for monitoring the pressure and bearing capacity of soil at the pile bottom of a bored concrete pile, particularly relating to a device for testing the pile bottom stress of a bored concrete pile; the device comprises a pressure box, a flexible rod, a guide tube, an elastic ring and an observation cable, wherein the lower end of the elastic ring is connected with the flexible rod, the other end of the flexible rod is connected with the pressure box, the guide tube is sleeved outside the flexible rod, the observation cable is connected with the pressure box along the flexible rod. The device of invention has simple structure and convenient installation, the flexible property of the elastic ring ensures that a reinforcement cage has good buffering and protecting functions on the pressure box in piling process and the elastic deformation accumulated by the elastic spring gradually releases in the height fine adjustment process to push the pressure box to tightly contact with soil at the pile bottom. The invention can effectively monitor the stress state of the pile bottom, the process is reliable, the cost is low and the practical application effect is good.