40results about How to "Not damaged by impact" patented technology

A combined cutting PDC (polycrystalline diamond compact) bit provided with a breaking hammer at least comprises a bit body and the breaking hammer, wherein the bit body is provided with a plurality of bit blades, a plurality of PDC cutting teeth for cutting rock are arranged on the bit blades, the bit body is provided with an inner flow passage as well as a plurality of cleaning holes formed between the bit blades, and the front end of the inner flow passage is communicated with the cleaning holes; at least one breaking hammer is arranged on the bit body and comprises a hammer body, a plurality of cutting units are arranged on the surface of the hammer body which is rotationally arranged at the front end of a bearing seat, and the rear end of the bearing seat is fixed on the bit body and communicated with the inner flow passage. Therefore, the technical problems of high rock abrasion ratio, difficulty in rock cutting, low rock breaking rate, fast wear and short service life of the bit when the bit is applied to an ultra-hard formation in a drilling process are solved, the defect of early damage to the bit when the bit is applied to a gravel formation is overcome, further, the service life of the bit can be prolonged, the drilling speed can be increased, and the drilling cost can be reduced.

The present invention provides a display panel, a display device and a preparation method thereof. The display panel comprises: a substrate; a luminescent layer arranged on the substrate; a buffer structure comprising an airflow channel formed by a buffer layer, wherein the airflow channel is filled with air, the buffer structure is arranged at one side of the substrate, far away from the luminescent layer, the air in the airflow channel is compressed when display panel is impacted to allow the impact force to dispersed to the circumference of the air so as to disperse to the impact of the display panel and prevent the display panel from being damaged by the impact force.

The invention discloses a heat-insulating film and a preparation method. The invention provides an excellent heat-insulating film which can meet an optimal heat-insulating effect of heat radiation. The heat-insulating film comprises three layers from top to bottom, namely, a film protection layer, a use layer and a release layer, wherein the use layer comprises a metal hardening layer, an upper transparent film, a glue layer, a lower transparent film, a metal oxide layer and an adhesive layer from top to bottom; the film protection layer comprises a protection base film and a protection adhesive layer from top to bottom. As two layers of PET base materials are bonded together, the heat-insulating film is relatively good in elasticity vibration absorption function and good in acute impact resistance, and the result of an impact test of a 500g testing ball at the height of 100cm shows that a piece of glass needing heat insulation can be effectively prevented from collision damage.

The invention discloses a vertical rotating floating pier anti-collision device, belonging to the technical field of bridge collision avoidance. The vertical rotating floating pier anti-collision device comprises three parts, namely a fixed pier, a floating flexible anti-collision body and a support structure, wherein the fixed pier arranged on a bank is fixedly connected with slope protection of the bank into a whole; the floating flexible anti-collision body is arranged at the center of a river close to a protected pier; the front end of the support structure is fixedly connected with the floating flexible anti-collision body, and the rear end of the support structure is connected with the fixed pier by virtue of a rotating structure; the floating flexible anti-collision body and the support structure which can float up and down along with the variation of water level are separated from the protected pier, and a gap which can cause the device to move up and down between the highest water level and the lowest water level is kept among the floating flexible anti-collision body, the support structure and the protected pier. The device disclosed by the invention is reasonable in design, has simple structure, can ensure a bridge and a ship not to be damaged by collision, is easy to maintain and has long service life.

The invention relates to the field of unmanned aerial vehicles, in particular to a multifunctional unmanned aerial vehicle undercarriage which comprises a connecting disk and two first landing gears.The two first landing gears are symmetrically arranged at the bottom of the connecting disk, a second landing gear is further arranged at the bottom of the connecting disk, the second landing gear andthe two first landing gears are distributed in an isosceles triangle form and are three vertexes of an isosceles triangle, a driving device for driving the two first landing gears and the second landing gear to synchronously fold or unfold is arranged on the connecting disk, and the periphery of the top of the connecting disk is connected with the bottom of an unmanned aerial vehicle body througha plurality of connecting supports. In the rising or landing process of an unmanned aerial vehicle, a first inclined arm and a second inclined arm can be flexibly adjusted to guide and support the unmanned aerial vehicle in the landing process, comprehensive irradiation of a camera on the lower portion of the unmanned aerial vehicle in flight is met, and wings can be protected from impact damagein flight.

The invention discloses an anti-interference protective circuit. The anti-interference protective circuit comprises a signal input port, a resistor R1, a resistor R2, a resistor R3, a triode T1, a diode D1 and a chip receiving pin. The signal input port, the resistor R1, the resistor R3 and the triode T1 are sequentially in series connection, the resistor R3 is connected to an emitter E of the triode T1, the resistor R2 is in linkage with the triode T1, the chip receiving pin is connected to the emitter E of the triode T1, the diode D1 is in parallel connection with the resistor R1, and the positive pole of the diode D1 is connected with the ground. By means of the structure, the anti-interference protective circuit avoids physical damage to a chip device caused by impact of a signal with high voltage and a large current.

The invention discloses a protection and filtering device for an underwater sensor. The device comprises a protection device. A sensor monitoring probe is fixed on the top of the protection device andincludes a pressure-resistant cabin, a watertight joint and an underwater detecting sensor. The underwater detecting sensor is arranged inside the protection device. According to the protection and filtering device, with the protection device, the underwater detecting sensor and a water inlet are protected from being impacted and damaged to a certain degree. The parts are made of copper materialsexcept the filler; the attachment process of the organism can be reduced effectively because of the own biotoxicity of the copper; the through hole formed in an outer copper mesh and the inner fillerform a two-stage filtering device and thus large-particle-size suspension particles and living bodies like silt can be removed basically even though not all suspension particles can be removed completely, thereby ensuring the relative cleanness of sea water in the protection device and increasing the underwater working time of the sensor.

The invention discloses a high-definition full-color LED display screen used for a conference system and a using method of the high-definition full-color LED display screen. The high-definition full-color LED display screen comprises a high-definition display screen body and a storage box, wherein the high-definition display screen body is installed in the storage box, two sliding grooves are formed in the inner walls of the left side and the right side of the storage box, and two guide strips are symmetrically and fixedly connected to the outer walls of the left end and the right end of the high-definition display screen. The ascending and descending actions of the display screen are achieved through the gear transmission effect, an atomization device and a rolling brush cleaning device are arranged on the storage box, and in the descending process of the high-definition display screen, a pressing rod on a manual liquid adding pump can be pressed, and a cleaning liquid stored inside is conveyed to the atomizing nozzle through a liquid conveying pipe and is uniformly sprayed to a cleaning friction roller after being atomized by the atomizing nozzle, so that the cleaning friction roller is kept in a wet state, and when the high-definition display screen starts to move downwards, the wet cleaning friction roller synchronously rotates to perform friction cleaning treatment on thehigh-definition display screen, and good definition is kept.

The invention discloses parcel sorting AGV equipment with an anti-collision structure. The parcel sorting AGV equipment comprises a horizontally-arranged bottom plate, the upper surface of the bottom plate is fixedly connected with an AGV control box, the AGV control box is cylindrical, the bottom surface of the bottom plate is provided with a guide device, the bottom surface of the bottom plate is rotationally connected with a plurality of first universal wheels, a plurality of anti-collision plates are vertically arranged at the outer side of the AGV control box, the bottom ends of the anti-collision plates are fixedly connected with the upper surface of the bottom plate, buffer plates are vertically arranged at the outer sides of the anti-collision plates, a plurality of grooves are formed in the surfaces of the outer sides of the multiple anti-collision plates, and sliding blocks are slidably connected into the multiple grooves. According to the parcel sorting AGV equipment, internal components and objects are protected by arranging the anti-collision plates, and the buffer plates are additionally arranged outside the anti-collision plates, so that the acting force generated by collision is reduced, and the buffer protection effect is achieved; and meanwhile, telescopic second universal wheels are additionally arranged, so that the stability of the equipment is improved, rollover is prevented, and the parcel sorting AGV equipment is simple and practical.

The utility model discloses a high-rise drainage bend tube which comprises a water inlet section, a bend section and a water outlet section, the water inlet section is detachably connected with the bend section, the water inlet section comprises an energy dissipation tube and a filtering tube which are detachably connected, the energy dissipation tube comprises a first tube body and a plurality ofenergy dissipaters connected to the inner tube wall of the first tube body, and the filtering tube comprises a second tube body, a filtering box connected to the inner tube wall of the second tube body and a conical filtering net arranged in the filtering box. The pipeline is designed to reduce energy of the pipeline before water flow and sundries with huge potential energy impact the bend tube,impact damage to the bend tube is effectively reduced, and the pipeline is easy to replace and maintain, simple, practical and easy to implement.

The invention provides a dedicated vacuum oil filtering system for high-viscosity lubricating oil. The dedicated vacuum oil filtering system comprises a vacuum separating device; the vacuum separating device comprises a vacuum tank, an atomizer and a vacuum separator; the atomizer comprises a body and an oil conveying pipe, wherein four groups of atomization channel sets are sequentially arranged in the body from top to the bottom; the vacuum separator comprises a shell and a separating net, wherein the separating net comprises a vertical-horizontal intersected net face and a separating part. The dedicated vacuum oil filtering system has the beneficial effects that oil-water mixture experiences a compression process before entering an atomization channel, the compressed oil-water mixture is suddenly pressed and reduced when leaving the middle of the atomization channel along with enlargement of the cross sectional area, the oil-water mixture is not completely pressed from the atomization channel to the outer wall end of the body, and the oil-water mixture can suddenly scatter in an explosion shape under an effect of vacuum negative pressure after entering the vacuum tank; thus, an oil atomization effect is good, and an oil-water separation effect is good.

The invention discloses a torsion damper for a hybrid electric vehicle. The torsion damper comprises a driven plate and friction discs, disc springs, and covers which are sequentially overlapped on friction plates of the driven plate from bottom to top; and the covers cover the disc springs and the friction discs, the outer rings of the covers are provided with mounting holes, the inner ring edgesof the covers are provided with clamping claws, the inner rings of the friction discs are provided with necks, and the necks are matched with the clamping claws. The absorber transmits torque and unloads impact and is light in weight, small in rotational inertia, small in installation space, simple and reliable in structure, and low in cost.

The invention belongs to coal mine safety equipment, and particularly relates to a hydraulic support anti-shock device. An energy-absorbing anti-shock protection pad is arranged between the column socket of the hydraulic support and the column bottom of the column, and the column cap of the hydraulic support and the column head of the column. There is an energy-absorbing filling fluid in the cavity of the nest and the column cap. When the hydraulic support is impacted by the top and bottom plates during the support process, the energy-absorbing anti-shock protection pad consumes energy through the phase change at the moment when the column safety valve is too late to open. Dissipate the impact energy and reduce the impact force; when the hydraulic support is greatly impacted by the top and bottom plates, the column safety valve cannot resist the impact load on the hydraulic support, and the column socket and column cap will have a certain elastic deformation, and the energy absorption will be filled. After the liquid feels the impact, the viscosity will increase rapidly to dissipate the impact energy; the anti-shock device of the hydraulic support dissipates the impact energy received by the hydraulic support through the phase change effect of the anti-shock protection pad and the energy-absorbing filling fluid to protect the hydraulic support The structure is not damaged by impact.

The invention discloses a non-integrated steel ball type lock wall steel plate warping prevention device which is arranged at the lock head and lock wall of a ship lock or at the joint of a steel plate in an approach channel, wherein a stripe groove is formed in the wall surface at the mounting position, a plurality of supports are anchored in the groove at intervals, a connecting shaft is fixed on the supports, a plurality of steel rollers are sleeved on the connecting shaft, and each steel roller is located between two supports. The invention provides the lock wall steel plate warping prevention device which has the characteristics of being convenient in installation and dismounting and replacement, high in durability, good in protection effect and economical efficiency, and realizes non-integrated replacement convenience and economical efficiency.