777results about How to "Shock mitigation" patented technology

The present invention provides for a ceramic sintered body and a ceramic filter having a long-term stability which can prevent cracks from occurring due to the breakage of ceramic particles when thermal stress is applied in regeneration process and the like, and can prevent catalyst carried from deteriorating when regeneration treatment is conducted repeatedly. The invention is a ceramic sintered body comprising ceramic coarse particles and porous bonding layers existing between the ceramic coarse particles to connect the particles and comprising ceramic fine particles having an average particle size smaller than that of the ceramic coarse particles and/or the aggregates thereof, and a ceramic filter prepared by using the ceramic sintered body.

The invention relates to SBS aqueous thick environment protection waterproof paint with high elasticity and a preparation method thereof, belonging to the field of paint. The paint of the invention is obtained by stirring the following materials according to parts by weight: base stock: 20-40 parts of aqueous acrylic emulsion; elastomer: 10 to 50 parts of SBS aqueous rubber latex; 20-50 parts of inorganic filler; 1-10 parts of accessory ingredient; 5-15 parts of water. The invention has high elasticity and favourable waterproofness which the existing aqueous paint does not have, and the novel aqueous thick environment protection waterproof paint with high elasticity has the advantages of innocuity, no ignition, no burst, abrasion resistance and no pollution. The paint of the invention is a favourable product widely used in basketball courts, tennis courts, volleyball courts, badminton courts, table tennis courts, swimming pools, parking lots and the like, and also can be used in gymnasiums and physical recreational activity fields to be made into colourful and elastic terraces.

The invention provides a movable and quick-inflation rescue air cushion, relates to a rescue air cushion, and solves the problem that the rescuing time is prolonged because a conventional rescue air cushion is long in inflation time, large in volume and hard to transport when being used. A plurality of tank bodies comprise at least one third tank body, a plurality of first tank bodies and a plurality of second tank bodies, wherein when the number of the third tank body is one or more, the plurality of first tank bodies and the plurality of second tank bodies are alternately attached to the periphery of the third tank body or the plurality of third tank bodies and connected to form a tank assembly, and a plurality of inflation hoses are fixedly connected to the upper end face of the tank assembly; the upper cavity in the tank assembly is a pipeline chamber, and the lower cavity of the tank assembly is a gas collection chamber; a plurality of gas inlet pipelines and a plurality of gas exhaust pipelines are arranged in the pipeline chamber; a plurality of rollers are arranged at the bottom of the tank assembly; a buffer face mesh is arranged on the plurality of inflation hoses; an inflation hose coating is coated on each inflation hose; and a plurality of reinforcing wires pass through the inflation hose coatings to form a reinforcing wire mesh. The movable and quick-inflation rescue air cushion is used in rescue work.

The invention relates to a construction method for enabling a rectangular pipe jacking machine to enter into a tunnel in an existing building. The construction method is characterized by comprising the following steps: (1) setting up a tunnel-entering receiving buffer platform in the existing building at the tunnel-entering position; (2) setting a hanging point for a cutter head of the pipe jacking machine in the existing building at the tunnel-entering position; (3) chiseling off a portal before the pipe jacking machine enters into the tunnel; (4) adjusting all parameters and enabling the pipe jacking machine to enter into the tunnel; (5) plugging the portal after the rectangular pipe jacking machine enters into the tunnel; (6) detaching the cutter head, a chest plate and internal equipment of the pipe jacking machine, and transporting the cutter, the chest plate and the internal equipment of the pipe jacking machine out of a channel; and (7) leaving a housing of the pipe jacking machine in the channel. The construction method disclosed by the invention has the advantages of smoothly taking an inner core part of the pipe jacking machine out of the existing building and saving investment in construction of a tunnel.

The invention relates to a full-automatic hydraulic molding machine for producing a hollow block. The full-automatic hydraulic molding machine comprises an automatic feeder for pushing a steam-curing car to a stacking area and a positioner for limiting the steam-curing car to the stacking area, wherein the positioner comprises a support arm and an air cylinder for supporting up or putting down the support arm; the positioner is fixedly arranged on the upper end face of a sliding block; the sliding block is in sliding fit with a guide rail body; a buffer device is arranged at the left end of the guide rail body and is used for buffering an impact force of the sliding block, which is generated when the steam-curing car impacts the positioner; the buffer device is also used for buffering the impact force of the sliding block when the steam-curing car impacts the supported support arm so as to relieve the pressure on the air cylinder, which is caused by the impact of the steam-curing car. According to the full-automatic hydraulic molding machine disclosed by the invention, the impact force on the air cylinder, which is caused by the steam-curing car, is buffered by the buffer device when the steam-curing car impacts the supported support arm, so that the impact force borne by the air cylinder can be effectively relieved and the service life of the air cylinder is effectively prolonged.

The invention provides a control method for a vehicle. A vehicle exterior safety airbag is arranged on the vehicle. The control method comprises the following steps that the relative speed between the vehicle and an obstacle and the distance between the vehicle and the obstacle are detected; whether the distance between the vehicle and the obstacle is smaller than the safety distance of collision avoidance or not is judged according to the relative speed between the vehicle and the obstacle; if the distance between the vehicle and the obstacle is smaller than the safety distance of collision avoidance, the vehicle exterior safety airbag is controlled to be opened before the vehicle and the obstacle collide. According to the control method for the vehicle, the damage caused by vehicle collision can be effectively reduced, and the safety of the vehicle is improved. The invention further provides a control system for the vehicle and the vehicle.

The invention discloses an electrical control cabinet which comprises an electrical control cabinet body. An air outlet hole is formed in the inner wall of the right side of the electrical control cabinet body, a dustproof net is movably arranged in the air outlet hole in a sleeved mode, the dustproof net is fixed to the right side of the electrical control cabinet body in a threaded mode, and a V-shaped protection plate is arranged above the electrical control cabinet body. The bottom of the V-shaped protection plate is fixedly provided with a fixed block, and the top of the electrical control cabinet body is fixedly provided with a rectangular pipe which sleeves the fixed block in a sliding manner. The electrical control cabinet is reasonable in design, the cooling fan can be automatically started to dissipate heat when the temperature in the electrical control cabinet body is higher than the preset temperature, the heat dissipation efficiency is improved, the dustproof plate can be conveniently and continuously vibrated left and right in the heat dissipation process, and dust particles attached to the right side of the dustproof plate can be effectively vibrated off in cooperation with the inclined arrangement mode of the dustproof plate; the blocking phenomenon is relieved, normal and stable entering of air is guaranteed, the dustproof plate can be taken out to be cleaned, and the use requirement is met.

The invention provides a hydraulic compaction device and a hydraulic compaction machine, and belongs to the field of engineering machinery. The hydraulic compaction device comprises a machine shell, a hydraulic oil cylinder, a compaction rammer and a compaction plate; the hydraulic oil cylinder is located in the machine shell and is hinged to one end of the machine shell, and the compaction plate is fixedly arranged at the other end of the machine shell; the compaction rammer is located between the hydraulic oil cylinder and the compaction plate, a T-shaped groove is formed in the side, close to the hydraulic oil cylinder, of the compaction rammer and comprises a sliding cavity and a limiting cavity which communicate with each other, and the limiting cavity is located in the compaction rammer; and the hydraulic oil cylinder is provided with a piston rod, the piston rod comprises a rod body, a first step part and a second step part, wherein the first step part and the second step part are fixedly connected with the rod body, a part of the rod body extends into the compaction rammer and is in clearance fit with the sliding cavity, the sliding cavity is located between the first step part and the second step part, and the hydraulic oil cylinder is used for driving the compaction rammer to make contact with or get away from the compaction plate. The hydraulic compaction device is reasonable in structure, and the impact force borne by the piston rod and the compaction rammer is effectively relieved.

The invention discloses a sheet metal part feeding and conveying mechanism. The mechanism comprises side plates, a foot plate, a conveying belt, a material box, an electric push rod, a push plate, a discharge port, a limiting plate, an auxiliary frame, guide rods, studs and reset springs. The side plates are symmetrically arranged; foot plates are fixed to the bottoms of the side plates. The conveying belt is mounted between the side plates; the material box is fixed to the tops of the side plates and located at the end of the conveying belt. The discharge port is formed in the bottom end of the side, close to the conveying belt, of the material box; the push plate is inserted into the bottom end of the symmetric side of the discharge port of the material box in a sliding manner; the pushplate is attached to the bottom surface of the material box; the electric push rod is installed in the bottom surface of the material box, and the output end of the electric push rod is fixedly connected with the push plate,. According to the sheet metal part feeding and conveying mechanism, through mechanical intermittent operation, sheet metal parts are guided out and fed evenly, work is stable,feeding is efficient, manpower is saved, the production cost is reduced, the feeding period of the device is longer, the structure of the device is simple, and maintenance is convenient and fast.

A gaseous fuel injection valve includes: a valve housing; a metallic nozzle member having a flat valve seat and a nozzle bore passing through a central portion of the valve seat; a valve body provided at one end face with a rubber seating member which is operated in cooperation with the valve seat; a coil; and a return spring for urging the valve body toward the valve seat. A stationary core attracts the valve body to move the seating member away form the valve seat, when the coil is excited. In this injection valve, a flourine resin valve seat coating is formed on the valve seat so that the seating members brought into close contact with the valve seat coating. Thus, an oil-repellent property of the valve seat coating is provided to the valve seat to prevent adherence of oil to the valve seat, leading to an improvement in valve-opening response of the valve body upon the excitation of the coil.

The invention discloses a direct discharge sieve base with a damping function. The direct discharge sieve base comprises a mounting base, wherein supporting blocks are installed inside the mounting base through second damping springs; two sides of the supporting blocks are connected with the inner wall of the mounting base through fourth damping springs; a groove is formed in the top of the supporting block; a sliding rod is installed inside the groove; sliding blocks are installed on the sliding rod; one side of each sliding block is connected with the inner wall of the groove through a thirddamping spring respectively; a sliding chute is formed in the top of the mounting base; first supporting rods are installed on the tops of the sliding blocks respectively; second supporting rods areinstalled on the tops of the first supporting rods through first damping springs respectively; and a mounting plate is installed on the top of the tops of the second supporting rods. According to thedirect discharge sieve base, through the arrangement of the first damping spring, the second damping springs, the third damping springs, the fourth damping springs, mounting holes and universal wheelstructures, the problems of low damping effect and single function are solved.

The invention provides a composite energy absorption device for collision. The composite energy absorption device comprises an extruding part and a bursting part, wherein an accommodating cavity and fiber layers stacked on the side wall of the accommodating cavity are arranged in the bursting part; the accommodating cavity is filled with an energy absorption material; the fiber layers is divided into a silk fiber layer arranged on the inner layer and multiple carbon fiber layers stacked on the outer side of the silk fiber layer; the fiber arrangement angles in the carbon fiber layers are different; the extruding part comprises an extruding rod and an extruding plate; the extruding rod and the accommodating cavity are in interference fit, when the extending rod receives external force, one end of the extruding rod extends into the accommodating cavity and extrudes the energy absorption material, and the other end of the extruding rod is connected with the extruding plate.

The invention discloses a supercritical extraction technology imitating ultrasonic high-speed separation, and belongs to the field of supercritical extraction. According to the supercritical extraction technology imitating ultrasonic high-speed separation, through a micro ultrasonic bag arranged on the lower portion of a binary separation tank, an ultrasonic cavity is formed, through a gas opening, the ultrasonic cavity can be filled with gas continuously, the gas can be pumped out of the ultrasonic cavity continuously, thus continuous switch of expanding and shrinkage of transformation bulgeparts can be effectively controlled, then a micro-elastic baseboard is driven to shake continuously, thus a binary intermediate shakes, due to temperature rise and decompression, carbon dioxide in thebinary intermediate returns to a gas state, and through shaking, the movement speed of gaseous carbon dioxide molecules can be effectively improved, so that release of gaseous carbon dioxide is effectively accelerated, then the efficiency of medicine extraction is significantly improved, meanwhile, by arranging an inner expansion stabilizing pipe with variable volume, the flow speed of the gaseous carbon dioxide can be improved, the possibility that the binary separation tank internally explodes due to the fact that gas is not discharged in time is effectively avoided, and the safety is improved.

The invention discloses a wafer discharging method, auxiliary device and device, and CMP equipment comprising the wafer discharging device. The wafer discharging method comprises the following steps of conveying a wafer to the position above a discharge surface; releasing the wafer to enable the wafer to move towards the discharge surface; spraying liquid to the lower surface of the wafer in the moving process of the wafer to provide buffering force for the moving wafer. According to the wafer discharging method provided by the embodiment of the invention, the wafer can be prevented from being scratched and broken during wafer discharging; accordingly, the yield of wafers can be increased, the productivity and efficiency can be improved, the frequency of shutdown maintenance can be reduced, and the cost can be lowered.

A linear compressor comprises a cylinder 10, a piston 20, a cylinder end surface 11, a movable section 40 and a stationary section 50 that constitute a linear motor, coil springs 15, 30, a head cover 80, a support mechanism 90, a sealed container 100, etc. Defined in the cylinder 10 is a compression chamber 13 for gas compression. The spring member 61 of a spring mechanism member 60 is composed of coil springs 15, 30 having predetermined spring rigidity. When the coil spring 15 is compressed to the fullest extent, a clearance is secured between the end surface of the piston 20 and the cylinder end surface 11, whereby the amplitude of the piston 20 of the linear compressor can be controlled.

The invention relates to a pneumatic and particle damping based walking-aiding protection device for old people. The pneumatic and particle damping based walking-aiding protection device comprises an air bag body fit with the rear side of the leg of a human body, wherein the air bag body comprises a haunch support fit with the haunch of the human body, thigh supports fit with the thighs of the human body, shank supports fit with the shanks of the human body and sole supports fit with the soles of the human body, wherein damping particles are filled in the haunch support. The pneumatic and particle damping based walking-aiding protection device for old people can reduce burden of the old people in walking and going upstairs and relieve impact force produced when the old people fall to the ground and the haunch knocks against the ground, accordingly reduce the probability that the pelvic bones are injured and has active aiding and protecting roles on the old people in walking and going upstairs.

The invention provides an air bag door structure which covers an opening of a supplementary restraint system module of the passenger side of an instrument board. A metal air bag door system comprises an air bag door body and a hinge portion connected onto one side of the air bag door body. A weakening structure for absorbing compression energy produced during expansion of an air bag is arranged on the air bag door body, and a strengthening structure for improving the hinge strength is arranged on the hinge portion. The metal air bag door structure has a small turnover radius, so that the metal air bag door system can be prevented from colliding with an automobile front windshield; moreover, the structure also has a small turnover angle and low turnover speed, so that even if the metal air bag door system collides with the automobile front windshield, impact force on the automobile front windshield can be reduced, and hurts to passengers caused by cracking of the front windshield are finally avoided.

The invention relates to a buffer breakage-proof flat bottom silo, wherein, a central blanking barrel and a central column which are connected through a rigid mechanism are fixed in the center of the silo; an internal screw downspouting is arranged in the central blanking barrel and the central column is coiled with one or a plurality of screw downspoutings. In the buffer breakage-proof flat bottom silo in the invention, materials firstly pass through the internal screw downspouting, then pass through an external screw downspouting, and freely fall to the bottom part of the flat bottom silo by ensuring the minimum fall in a slipping manner, thus forming a pointed piling form with high center and low center peripheral part. When the materials account for 60% of the silo body space, a mobile distributing device is started to locate randomly, and a rotary distributing bridge does rotary movement along an annular orbit; blocky materials slip from the inner part of the silo center to the periphery of the center along the pointed piling gradient of raw materials and complete the distribution of the remaining 40% of the peripheral space of the silo. The invention effectively controls the fall of material free fall, increases blanking friction force, mitigates the impact of materials and reduces flow rate, thus being in particular applicable to the storage of blocky materials.

An assembly structure of an automobile skylight sun shield and a rear drainage groove comprises the sun shield, the rear drainage groove and a guide rail. The sun shield and the rear drainage groove are arranged on the guide rail in a sliding mode. The rear portion of the sun shield and the rear drainage groove move in a linkage mode. When a skylight is closed to a corresponding position, a skylight sun shield slider and the rear drainage groove are matched for linkage movement, and the skylight sun shield is correspondingly closed along with closing of the skylight. When the skylight is opened to a corresponding position, the rear drainage groove of the skylight and the sun shield are matched for linkage movement, and the skylight sun shield is correspondingly opened along with opening of the skylight. The assembly structure is simple and convenient to use, the sun shield and the rear drainage groove are made to be matched with each other, and practical meaning is large.

A vehicle body front structure provided with left and right front side frames (16, 17). The left front side frame (16) has a rectangular closed cross-sectional shape. The front side frame (16) is provided with a rectilinear section (front half frame section) (44) extending rectilinearly from the front end (58) to the center section (43), and also with a moment receiving section (rear half frame section) (45) continuing from the rectilinear section (44) and extending in a curved form toward the inner side in the widthwise direction of the vehicle. A first ridge line section (78) is a portion which forms a corner (78) among the corners (78) of the rectilinear section (45), said corner (78) being located on the inner side in the widthwise direction of the vehicle. A second ridge line section (84) is connected to the first ridge line section (78) at a position inside the moment receiving section (45). A stiffener (65) is connected to the rear end (66) of the front side frame (16).