43results about How to "Stop shock" patented technology

The invention discloses a film-covered woven body system for embolic arterial aneurysms in the field of medical appliances. The film-covered woven body system comprises a meshed woven body and a delivery system connected with the woven body, the woven body is of a gourd-shaped double-layer spherical structure after being released, the bottom of the woven body is flat, and a connection part of the woven body and the delivery system is arranged inside the woven body, that is, the connection part is arranged not to protrude out of the woven body. The inner surface or the outer surface of the woven body is covered by a film. The film is made of polytetrafluoroethylene and the like and is arranged in one layer or a plurality of layers. Complete film coverage or partial film coverage can be adopted, but the bottom of the woven body needs be fully covered by the film. Compared with a woven body with no covering film, blood can be prevented more effectively from entering the arterial aneurysm to cause impact on the aneurysm wall. Effects can be improved along with increase of the number of film layers. Meanwhile, since the inner side of the woven body is covered by the film, meshes of the surface of the woven body can be made relatively sparse, the number of woven yarns for the woven body can be decreased, the size of the external contour can be reduced, and resistance in in-vivo delivery can also be reduced.

The invention provides an inclination and shock preventing chemical box for aerial spraying. The inclination and shock preventing chemical box comprises a box body, a box cover and an inclination and shock preventing plate; chemical outlet holes are formed in the bottom surface of the box body, a plurality of guide columns are arranged on the bottom surface of the box body, the density of the inclination and shock preventing plate is lower than the density of chemicals, the inclination and shock preventing plate is provided with a plurality of through holes and radial overflow holes and is installed on the guide columns through the through holes, a gap is reserved between the inclination and shock preventing plate and the inner wall of the box body, and the through holes are in clearance fit with the guide columns in a sliding guide mode; the box cover is provided with an air hole and is detachably sealed on the box body. According to the invention, the inclination and shock preventing plate floats on the surfaces of the chemicals and can stop the chemicals from being shocked or inclined through the reaction force of the guide columns when the chemicals are shocked or inclined, and therefore the stability of the gravity center of the chemical box can be maintained, shock of the chemicals can be weakened, the chemicals can be prevented from splashing, the influence of inclination or shock of the chemicals in the chemical box to the balance of airplanes can be reduced in the aerial spraying process, and the quality and the efficiency of the aerial spraying work can be guaranteed and improved.

The invention discloses a noise-reducing blower inlet windproof ring device of a vehicle air conditioner. The device comprises a volute arranged on an impeller of a blower in a covering mode, wherein an air inlet and an air outlet are arranged in the volute, the edge of the air inlet protrudes and extending to the inside of the volute to form a first windproof ring. The inner surface of the volute is provided with a second windproof ring and a third windproof ring in a protruding mode, the second windproof ring is sleeved on the outer circumference of the first windproof ring, a distance exists between the second windproof ring and the first windproof ring, and the third windproof ring protrudes inward and is arranged on the air outlet of the volute in an annular mode. Due to the fact that the noise-reducing blower inlet windproof ring device of the vehicle air conditioner is additionally arranged, an air inlet single-face windproof ring of a traditional blower is changed into a double-face windproof ring an a bottom windproof ring, influences of return air of the blower on efficiency of the blower and noise reduction of the air conditioner are greatly reduced, air amount of the air conditioner is further improved, inlet return flow noise is lowered, and performance of the air conditioner and comfort of a vehicle are improved.

The invention relates to a dynamic compaction buffer damping method of a crawler crane. A buffer damping device is arranged on the rear side of a suspension arm of the crawler crane, the rebounding kinetic energy of the suspension arm and the rebounding upward gravity center potential energy of the suspension arm are slowly released through a damping function, impacts to a machine body and the suspension arm due to repeated oscillation are stopped; the suspension arm is connected with one end of a back stay bar member, the other end of the back stay bar member is connected with the buffer damping device, the other end of the buffer damping device is connected with a triangular support of the crane, the buffer damping device comprises a stop valve and a buffer damping cylinder with two pistons, the front cavity and rear cavity of the cylinder are communicated by adopting the stop valve, and the stop valve is a bidirectional two-position two-way electromagnetic valve. According to the invention, the impact to the crane by the rebounding kinetic energy of the suspension arm during unhooking of a dynamic compaction hammer can be rapidly relieved, and the impacts to the machine body and the suspension arm due to the repeated oscillation of the suspension arm are stopped.

The invention discloses a W flame boiler for avoiding clinkering on water-cooled walls of wing walls and sidewalls by four-corner ventilation and relates to the W flame boiler, solving the problem of severe clinkering on the wing walls and the sidewalls commonly existing in the current W flame boiler. The technical scheme is as follows: boiler arches close to the wing walls on the four corners of the W flame boiler are respectively provided with a group of nozzles, and each group consists of a far wing wall dense coal powder flow nozzle, a far wing wall thin coal powder flow nozzle, an oil secondary air nozzle, a first anti-clinkering air nozzle and a second anti-clinkering air nozzle; the far wing wall dense coal powder flow nozzle, the far wing wall thin coal powder flow nozzle, the first anti-clinkering air nozzle and the second anti-clinkering air nozzle are arranged on the boiler arches in a rectangular outline, the oil secondary air nozzle is arranged on the outside of the rectangular outline and is far from a hearth, the first anti-clinkering air nozzle and the second anti-clinkering air nozzle are arranged at one side close to the wing walls and the sidewalls, and the far wing wall dense coal powder flow nozzle is far from the hearth center. The W flame boiler can effectively reduce coal powder and ash particles which are impacted on the water-cooled walls of the wing walls and the sidewalls, thus avoiding clinkering on the wing walls and the sidewalls.

The invention discloses a detonating device and method for rapidly forming a V-shaped pit in a hard rock. The blasting device comprises a detonation component (21), an upper explosive column unit (22), an explosive-proof pipe (23) and a lower explosive column unit (24) which are sequentially arranged from top to bottom (23); and after the detonation component (21) is detonated, the upper explosivecolumn unit (22) is detonated, detonation is delayed for a period of time through an explosion-proof pipe (23), and then the lower explosive column unit (24) is detonated, so that the rock is subjected to delay detonating. According to the detonating device and method for rapidly forming the V-shaped pit in the hard rock, through a method of creating a secondary free surface, the multi-hole charging and detonating operation in the past adopts standard and modularized combined charging optimally, an explosive-loading and explosion-proof mechanism is studied, so that long-time interval explosion when the explosive is loaded into the upper and lower portions of a hard hole is realized, so that the V-shaped pit meeting the requirement of the size parameter is well formed.

The invention discloses a sublevel interval charging explosion flame-proof and delayed detonation device in a confined space and a method. The detonation device comprises an upper connecting terminal and a lower connecting terminal which are movably connected through threads; a first cushion pad is arranged between an upper explosive tube and a flange structure; a plurality of cascaded annular metal expansion tubes are arranged at the outer part of the lower connecting terminal. According to the device and the method disclosed by the invention, upper charging detonation is converted into initiation power for lower charging; through long delay and then detonation for lower charging, as well as comprehensive flame-proof action, the condition that a lower cartridge case is impacted and damaged as well as sympathatically detonates after an upper grain explodes is prevented, and secondary blasting of rock blasting is realized, and thereby a V-shaped pit meeting size parameter requirements is formed by primary explosion.

The invention relates to a cigarette seedling watering and fertilizing management device, aiming at providing a cigarette seedling watering and fertilizing management device capable of carrying out quantitative control on the water addition quantity of cigarette seedlings. The device comprises a watering container and a water suction pump, wherein a water inlet pipe is fixed on the outer side wall of the watering container; a water inlet end of the water inlet pipe is communicated with a water outlet of the water suction pump by a water pipe; the water inlet pipe is provided with a water inlet valve used for adjusting the inlet water quantity; the side wall of the watering container is provided with a water outlet pipe at the side far away from the water inlet pipe; the watering container is internally provided with a water storage cavity communicated with the water inlet pipe, and a watering cavity communicated with the water outlet pipe; the bottom of the water storage cavity is communicated with the watering cavity by a sliding valve; the end, close to the water inlet pipe, of the of the sliding valve is connected with the side wall of the watering container by a spring, and the other end of the sliding valve is connected with a gravity ball capable of horizontally moving.

The invention discloses a high-quality BOPP (Biaxially-oriented Polypropylene) film which is prepared from the following components in parts by weight: 100 parts of polypropylene master batch, 10-15 parts of natural zeolite powder, 1-3 parts of zinc oxide whisker, 1-2 parts of graphene, 1-2.5 parts of silicon dioxide, 0.5-1 part of hollow glass bead, 0.3-0.8 part of polypropylene wax, 0.5-0.8 part of antifoaming agent, 0.2-0.4 part of halogen-free flame retardant, 0.5-1 part of slipping agent, 0.5-1.5 parts of dispersing agent, 0.6-1.2 parts of antioxidant and 0.2-1 part of plasticizer. According to the formula of the high-quality BOPP film, a certain amount of natural zeolite powder is added; the zeolite powder has abundant gaps and strong adsorbability, so that the catalyst residues in polypropylene and the low-molecule polymers generated in polymerization process are stored in the gaps; the mazy gaps are criss-cross, so that the film is cooled before the extreme active low-molecule polymers rush out of the surface, some low-molecule polymers are prevented from rushing out of the surface and higher surface tension can be kept; the anti-static property and abrasive resistance are excellent.

The invention discloses a silencer of an internal combustion engine. The silencer comprises a silencer main body and a noise elimination chamber disposed inside the silencer main body, wherein an exhaust manifold is installed on one end of the silencer main body; one end of the exhaust manifold is connected to a silencer sound insulation plate made of a heat-resisting material; the other end of the silencer main body is equipped with an exhaust end; a wind guide fan is installed on one side of the exhaust end; a wind guide fan outer cover is disposed on one side of the wind guide fan; a wind guide cone is disposed at the middle part of the wind guide fan outer cover; multiple wind guide blades are installed around the wind guide cone; an inflow pipe section is installed inside the silencer main body; a noise elimination cylinder is disposed inside the noise elimination chamber; the inflow pipe section is connected to one end of the noise elimination cylinder; the other end of the noise elimination cylinder is connected to a noise elimination bowl; a U-shaped wave solenoid is disposed on one side of the noise elimination chamber; and an outflow pipe section is disposed between the U-shaped wave solenoid and the sound elimination chamber. The silencer of the internal combustion engine is characterized by rapid heat dissipation, a long service life, a simple structure, good noise elimination results, convenient installation, etc.

The invention discloses a rotary compressor, which comprises a rotor and a pump body. The rotary compressor further comprises a partition used for separating the rotor from the pump body, and the partition is arranged between the rotor and the pump body. By virtue of applying the technical scheme, the partition is arranged so as to separate the rotor from the pump body and prevent exhaust of the pump body from impacting the rotor, so that the rotor is protected from being impacted by exhaust of the pump body, axial runout between a crank shaft and the rotor is avoided, further noises are reduced or avoided, and the purpose of eliminating abnormal noises is achieved.

The invention discloses a protective device of a breakwater for a port and an installation technology of the protective device, and belongs to the technical field of protective devices. When sea waves float up and down, side floating rods can be driven to float up and down, first adjusting rollers are driven to move up and down through the side floating rods, and side strip grooves are driven through the first adjusting rollers, a second adjusting roller is driven to rotate through a side strip groove, a power generator is driven to generate power through rotation of the second adjusting roller, floating objects floating on sea waves can flow to the position above a side floating rod, and then a conveying motor is started to drive a conveying belt to operate to cooperate with a floating object conveying plate to achieve the function of circularly conveying the floating objects, when a worker falls into a port by mistake, the worker is protected through an anti-falling net, buffering is conducted through a first buffering spring, and the anti-falling net can also prevent some garbage from falling into the sea.

The invention discloses a shimmy damping device for a spaceflight imaging load shutter. The shimmy damping device comprises four fan-shaped N pole samarium cobalt permanent magnets, a rear end cover, an aluminum alloy shimmy damping piece, four fan-shaped S pole samarium cobalt permanent magnets and a limited angle torque motor. When the limited angle torque motor is electrified and rotates, the aluminum alloy shimmy damping piece begins rotating and generates inducing eddy currents when passing through the gap between the two pairs of fan-shaped permanent magnets different in magnetism, and therefore the aluminum alloy shimmy damping piece generates damping force. The higher the rotation speed of the motor is, the faster the change of the magnetic flux of the aluminum alloy shimmy damping piece is, the larger the generated inducing eddy currents are, and the larger the generated damping force is. The shimmy damping device can effectively restrain the over-swinging and impacting phenomena in the rotation process of the shutter and effectively prolong the service life of a spaceflight imaging load shutter assembly.

The invention provides an efficient stone breaker which comprises a main machine. The main machine forwards extends to form an insertion pipe, a shaft rod which extends along the axis of the insertion pipe and extends out of the insertion pipe is arranged in the insertion pipe, and a discharge electrode capable of generating electric arc is arranged at the outer end of the shaft rod; 2-4 rows of side ejection mechanisms are evenly distributed on the side face of the insertion pipe in the circumferential direction, and each side ejection mechanism comprises a sliding way communicated with the interior of the insertion pipe and a sliding column arranged in the sliding way; and a pointed cone is formed at the outer end of each sliding column, when the sliding columns transversely slide to the outmost ends, the pointed cones at the outer ends of the sliding columns are jacked out of the insertion pipe, and when the sliding columns transversely slide to the innermost ends, the pointed cones at the outer ends of the sliding columns completely contract into the sliding way. By means of the efficient stone breaker, stone blocks or concrete blocks under various environments can be flexible, conveniently and quickly broken, the size and power are small, and carrying is very convenient.

The invention discloses a sand temperature adjusting device. The sand temperature adjusting device comprises a plurality of cooling water pipes which are fixed to a support. The upper part of each cooling water pipe is fixedly covered with a metal baffle piece in the extending direction of the cooling water pipe. The metal baffle pieces are bent towards the cooling water pipes. The horizontal width of each metal baffle piece is larger than the diameter of the corresponding cooling water pipe. Due to the fact that sand falls off from the upper parts of the cooling water pipes in a raining manner, and the upper parts of the cooling water pipes are covered with the metal baffle pieces, the sand can be prevented from directly impacting the cooling water pipes, and the sand impacts the metal baffle pieces; due to the good heat conductivity of the metal baffle pieces, the temperature transmission can be achieved, the falling sand is prevented from impacting the cooling water pipes, and abrasion and fractures of the cooling water pipes are avoided; and due to the fact that the metal baffle pieces are bent towards the cooling water pipes, the effect of uniformizing the falling sand can beachieved.

The invention discloses a treatment method for a high-cavitation peripheral pump impeller, and belongs to the field of peripheral pumps. The cavitation performance of a closed peripheral pump is effectively improved by welding buffering feather scales on the basis of an existing impeller, the buffering feather scales prevent liquid from being in direct contact with blade grooves, impact on the blade grooves due to bubble breakage is prevented, the blade is protected well, the V-shaped structure of the buffering feather scale plays a role in guiding the liquid entering and exiting from the blade grooves in the longitudinal vortex motion, so that the impact of the liquid can be effectively weakened, the energy loss is reduced to a certain extent, and the working efficiency is effectively improved; the impact buffering piece on the buffering feather scale intercepts and divides bubbles by utilizing a bubble retaining ball, gas in the bubbles enters a defoaming spherical shell through a breathable film, the bubble rate in liquid is effectively reduced, and the elastic force of an elastic horn on the impact buffering piece can absorb part of impact energy generated when the bubbles are broken; and the cavitation performance of the peripheral pump is effectively improved.

The invention discloses a technical proposal for enquiring a node in a system, which includes setting the query periods for the system and each node. Arrival node of the node enquiry period is determined when the system enquiry period is reached; the node is to be enquired when only one arrival node exists in the node query period; one of the nodes is to be enquired when a plurality of arrival nodes exist in the node enquiry period; the node being enquired is deleted from a record of the arrival node in the node enquiry period. The technical proposal of the invention can avoid the enquiry to agreat deal of nodes in the system in short periods of time, guarantee the system performance and real time character and avoid the impact on CPU of a system. In addition, technical proposal of the invention is capable of ensuring the enquiry period of each node to a certain degree.

The invention discloses a protective device of a breakwater for a port and an installation technology of the protective device, and belongs to the technical field of protective devices. When sea waves float up and down, side floating rods can be driven to float up and down, first adjusting rollers are driven to move up and down through the side floating rods, and side strip grooves are driven through the first adjusting rollers; a second adjusting roller is driven to rotate through a side strip groove, a power generator is driven to generate power through rotation of the second adjusting roller, floating objects floating on sea waves can flow to the position above a side floating rod, and then a conveying motor is started to drive a conveying belt to operate to cooperate with a floating object conveying plate to achieve the function of circularly conveying the floating objects; when a worker falls into a port by mistake, the worker is protected through an anti-falling net, buffering is conducted through a first buffering spring, and the anti-falling net can also prevent some garbage from falling into the sea.