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

The object is to provide an axial air gap type electric motor in which even if a large force to some extent is added to the vertical direction to the rotor output axis, the bearings don't damage and its long lifetime is realized. The axial air gap type electric motor comprises a stator and two rotors each of which is configured almost with a discoid shape and which are arranged as facing an identical rotation axis (rotor output axis) with a fixed gap. Said stator has a stator core comprising multiple pole members connected annually and one of the bearings for fixing the rotor output axis is installed inside said stator configured annually and another bearing is installed on the rotor output axis between the outside of said rotor and the load connected.

The invention discloses a glass fiber reinforced plastic optical cable protective sleeve, which includes a first glass fiber reinforced plastic tube, and the first glass fiber reinforced plastic tube is made of glass fiber reinforced unsaturated polyester, epoxy resin and phenolic resin. The first polytetrafluoroethylene waterproof material layer is coated on the outer wall of the first glass fiber reinforced plastic pipe, and the outer wall of the first polytetrafluoroethylene waterproof material layer is glued with a first silicide heat insulation cotton layer. The glass fiber reinforced plastic optical cable protective sleeve passes through the cooperation between the first polytetrafluoroethylene waterproof material layer and the first silicide heat insulation cotton layer, so that the first polytetrafluoroethylene waterproof material layer and the first silicide insulation cotton layer The temperature resistance of the heat insulation cotton layer makes the first glass fiber reinforced plastic pipe have stable temperature resistance, and through the temperature resistance of the second polytetrafluoroethylene waterproof material layer and the second silicide heat insulation cotton layer, it makes The optical cables inside the first cylinder, the second cylinder and the third cylinder can work stably.

The invention provides a display panel, a display device and a preparation method thereof. The display panel includes: a substrate; a light-emitting layer arranged on the substrate; a buffer structure, wherein the buffer structure includes an airflow channel formed by the buffer layer, gas is contained in the airflow channel, and the buffer structure is arranged on the side of the substrate away from the light-emitting layer, The gas in the airflow channel is compressed when the display panel is impacted, so that the impact force is dispersed around the gas, thereby dispersing the impact force received by the display panel and protecting the display panel from being damaged by the impact force.

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 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 ofthe 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 a luggage lock structure, which is characterized in that it comprises a lock body, a wrench (1), a lock rope (2), a rotating shaft (3), a lock head (5), and a locking hook (6); the rotating shaft is arranged on In the lock body, the sides of the rotating shaft are respectively connected with the two ends of the lock rope, and the two connecting parts of the rotating shaft and the lock rope are located in the same radial direction of the rotating shaft. The wrench is connected with the rotating shaft to drive the rotating shaft to rotate; The fastening surface of the head and the shackle is parallel to the lock cord. When the wrench drives the rotating shaft to rotate, since the two ends of the lock rope are fixed at the same radial position on the side of the rotating shaft, the rotating shaft can drive the lock rope to move back and forth slightly, and the lock rope can drive the lock head on it to move back and forth slightly , so as to realize the fastening and separation between the lock head and the shackle. The lock rope has a very high degree of freedom and can be converted in any direction, which is convenient for the position selection of the lock set on the box and improves the degree of freedom.

The invention discloses an anti-collision device for an independent float-type bridge pier, belonging to the technical field of bridge anticollision. The anti-collision device independent from a protected bridge pier is composed of a fixed pier, a float-type anti-collision body and a support guidepost, wherein, the fixed pier arranged on a bank is fixedly connected with a protecting slope of the bank into a whole; the float-type anti-collision body is arranged at one side of the center of a river of the protected bridge pier, and forms dynamic matching connection with the support guidepost; the support guidepost is connected with or fixedly connected with the fixed pier; the float-type anti-collision body which can float up and down along the change of water level is separated from the protected bridge pier; and the clearance which can satisfy that the device can move up and down between the highest water level and the lowest water level is reserved. The device provided by the invention has a reasonable design and simple structure, can ensure that a bridge and a ship can not be collided to be damaged, is easy to overhaul and maintain, and has long service life.

The invention discloses a bluetooth earphone, which comprises two earphone bodies, the two earphone bodies are spliced ​​upside down to form a rectangular box body, and a telescopic earpiece is arranged on the earphone body, and the earphone body is movably installed inside the earphone body In the activity chamber of the earphone body, the side of the earphone body facing away from the earpiece is provided with an expansion protector. When the earpiece is retracted into the activity chamber, the expansion protector expands and protrudes from the outer side of the earphone body. The two earphone bodies are located on one side of the earpiece. A magnetic attraction structure is provided, and the earpiece is buckled into the earphone body after the two earphone bodies are attracted by the magnetic attraction structure. The bluetooth earphone of the present invention can be combined into a box structure when not in use, eliminating the need for an earphone box, and has a small overall volume, is convenient to carry, takes up less space, and has very good impact resistance and high safety.

According to the pipe condition control intelligent irrigation method of the present invention, the electric valve opening control device receives the fluid information in the pipe from the pipe condition detection sensor, and drives the spool of the electric valve to rotate to a suitable valve opening according to the preset fluid information. Accurately control the water volume, pressure and flow rate in the hose, realize precise water and fertilizer irrigation, and avoid problems such as pipe detachment or pipe burst, water hammer phenomenon, water and fertilizer waste, and water and fertilizer corrosion of the pipe wall caused by pressure differences. It is convenient to establish a blockchain agricultural management system, making nationwide intelligent agricultural management possible. And the sensing element of the pipe condition detection sensor extends into the hose through the probe protection structure; the structure is simple and reliable, and the installation is convenient, and the sensing element is protected from impact damage on the basis of effectively obtaining fluid information in the pipe , which greatly reduces the detection cost of the intelligent irrigation system and facilitates the promotion and application of large areas.

The invention discloses an ice-erosion-prevention protection method of a cold-region river bank, and relates to the field of protection of floating ice impact. In order to solve the problems that an existing sticking slope type protection structure is light, thin, small in self weight, low in interface strength and free of effectively resisting ice floe impact, geotextile and a bottom layer reinforcing mesh are sequentially laid on the slope river bank from bottom to top; a plurality of connecting vertical ribs are arranged in a plum blossom shape and are welded to the interior of the bottom layer reinforcing mesh, stone masonry is placed, a top layer reinforcing mesh is laid, the multiple connecting vertical ribs are welded together, and a plurality of side sealing reinforcing steel bars are evenly welded between two outer sides of the laid top layer reinforcing mesh and the laid bottom layer reinforcing mesh and are used for sealing the stone masonry; the round faces of a plurality of semi-spherical steel shells are evenly welded to the top layer reinforcing mesh, a concrete cover face is adopted to cover the top layer reinforcing mesh, and the spherical faces of the multiple semi-spherical steel shells are exposed out; finally, slope shoulders and fixing feet are arranged on the top ends and the bottom ends of the slope river bank correspondingly in a built manner, the whole protection structure is built, and the method is used for ice impact and erosion prevention of the river bank.