74results about How to "No impact damage" patented technology

The invention relates to a low-voltage draw-out switch gear, in particular to a propulsion mechanism for a drawer of a low-voltage draw-out switch cabinet, including a precession mechanism and a three-position locking mechanism, wherein, the precession mechanism includes a transmission spiral which is arranged on a bottom board of the drawer by a support and a groove-shaped locating piece which is inosculated with the transmission spiral and pushes the drawer to move forward and backward and is arranged on a layer board of a cabinet body; the positioning with the linear movement of the drawer is carried out by a spiral protrusion of the transmission spiral and a chute of the groove-shaped locating piece, so as to ensure the drawer not to be skewed and generate a mechanical movement dead point when the drawer receives the reverse withdrawal force. The invention adopts the multi-ring effort-saving propulsion principle of the transmission spiral to ensure the effort-saving propulsion of the drawer, creatively utilizes the spiral protrusion of the transmission spiral and the chute of the groove-shaped locating piece to effectively control the balanced movement of the drawer and fully controls the drawer to be balanced absolutely and not be skewed when the drawer receives the reverse withdrawal force, the operation is flexible and easy, and the operating mechanical faults can be eliminated.

The invention relates to a method for overturning a box beam. A round overturning jig frame is designed, the box beam can be arranged in the overturning jig frame, and the performance that the overturning jig frame can roll is fully utilized, so that the box beam can be overturned and rolled, and can reach any angle, and further the welding and the drilling are convenient. The invention also limits a structure of the round overturning jig frame specifically. By utilizing the technical scheme in the invention, the impact damage can not be generated for hoisting mechanical equipment, in construction operation, the operation is simple and fast, the use is reliable and light, and the safety guarantee is reliable, and the cost is low. In addition, since the overturning is convenient, the optimal position of the welding at the ship-shaped welding can be guaranteed, the internal quality of welded seams can meet the requirements, the appearance quality of members can not generate distortion and deformation, and the internal quality also can not be damaged. On another aspect, the drilling also needs to keep the drilling surface upward all the time, which can be easily achieved by utilizing the overturning jig frame.

The invention discloses a hydraulic push-return impact oscillator, comprising an upper connector, a barrel and a lower connector connected in a threaded manner sequentially from top to bottom. A diversion assembly, a reciprocating drive assembly and a backpressure valve assembly are nested in the barrel. The diversion assembly comprises a guide sleeve, an upper valve block, a valve block, a lower valve block and a distribution plate. The reciprocating drive assembly comprises a drive piston and a reversing valve. The backpressure valve assembly comprises a backpressure valve head, a backpressure valve block and a discharge sleeve. Pumped high-pressure liquid is in the oscillator and diverted by the diversion assembly to provide hydraulic drive horsepower for the reciprocating drive assembly, the reversing valve controls the drive piston to finish an upper stroke and a lower stroke, the drive piston also drives the backpressure valve head to reciprocate, the backpressure valve head periodically opens or closes the backpressure valve block so as to enable a pulse backpressure-relief process in a string, the drive piston will impact on the upper valve block or the lower valve block at the end of each stroke, and therefore, periodical mechanical impact is generated.

The invention provides a ternary automatic transmission for a motor vehicle and relates to a fully-mechanical automatic transmission. The ternary automatic transmission for the motor vehicle comprises a first shaft (1), an intermediate gear shaft (9) and a second shaft (2), wherein the first shaft (1) is in clutch connection with an output shaft of a motor; forward-gear driven gears (3) on the second shaft (2) cooperate with one another to form relative motion and relative rest of gears by adopting a ternary mechanical clutch mode of an overrunning clutch (4), a spiral clutch (5), a centrifugal clutch (6) and the like so as to realize fully-mechanical automatic transmission of the motor vehicle. The ternary automatic transmission for the motor vehicle has the advantages of simple and compact structure, adaptation to the installation position and size of the conventional manual transmission, and positive effects of sliding in gear, saving fuel oil, reducing emission, improving riding comfort, prolonging the service life of each of the motor and a transmission system and the like due to reasonable construction and is convenient for manufacture and installation.

The invention discloses a high-strength hollow thermal-insulating building material. The specific preparation process is as follows: 1) preparing hydrolyzed plastic microsphere; 2) preparing molding slurry; 3) filling the molding slurry into the hydrolyzed plastic microsphere; 4) drying the filled plastic microsphere in a drying chamber at 80-85 DEG C; 5) preparing a coating solution; 6) uniformlycoating a layer of coating solution on the surfaces of the filled plastic microsphere; 7) baking the dried coated microspheres, thereby acquiring high-strength porous hollow microsphere. A netted hollow structure is formed in the material prepared according to the invention; an inner support structure of the porous hollow microspheres is mainly prepared from silicon dioxide and aluminum oxide, sothat the heat-conducting property is low; due to a duct structure in the microsphere, when the heat is conducted by a plurality of ducts after passing by the porous hollow microsphere, the heat is gradually reduced and is low when the heat is finally transferred to a wall surface, so that the heat insulation effect is achieved in winter and summer.

The invention discloses a straw crusher which comprises a charging device, a discharge device, a crushing device and a feeding device, wherein the crushing device comprises a rotor spindle, rotor cutterheads, a plurality of groups of fly cutters, cutter pins and a filter screen; the rotor cutterheads are arranged and fixed on the rotor spindle at equal gaps; the fly cutters are connected with the rotor cutterheads by the cutter pins; gaps are formed between the fly cutters and the filter screen; a discharge port is formed below the filter screen and connected with the discharge device; the feeding device is in an L-shaped structure formed by an upper press roll and a lower press roll and forms a feeding channel; one end, with a larger opening, of the feeding channel faces towards a charging port and is connected with the charging device; the other end of the feeding channel is connected with the crushing device; the lower press roll is formed by arranging feeding rolls in parallel, and is connected with a charging conveying belt; the upper press roller at least consists of a feeding roll, and is mounted on an upper press roller cover; and a hinge is arranged at a charging port end of the press roll cover. The straw crusher has the advantages of simple structure, high crushing efficiency, stability, smaller product particle size and the like.

The invention discloses a multifunctional stage sound box convenient for moving and lifting, which comprises a loudspeaker, a sound box body, LED colorful lamps, a rotating platform, a bearing base and a bottom plate, wherein the sound box body is provided with the loudspeaker; a plurality of LED colorful lamps are arranged on the outer surface of the sound box body; the bottom end of the sound box body is supported and connected through the rotating platform; a buffer pad is arranged between the sound box body and the rotating platform; the rotating platform is fixedly connected with a telescopic structure through a screw bolt and nut; a turbine is mounted on the telescopic structure and the turbine downward penetrates the bottom plate and is provided with a limiting block so that a plunger rod and a cylinder structure are more compact; the back surface of the sound box body is embedded with LED colorful lamps and an operation switch so that the appearance of the sound box is beautiful and elegant; a protective cover is covered above the sound box device, thereby avoiding the dust from falling onto the sound box device to further affect the auditory effect; the anti-interference capability of the sound box can be improved; meanwhile, the dust can be prevented from entering the sound box, thereby improving the sound effect of the sound box on the stage.

The invention discloses an electrical control cabinet used for an industrial robot. Telescopic rods are arranged at the bottom of the electrical control cabinet, so that height of the electrical control cabinet can be adjusted conveniently; a lightning arresting apparatus is arranged in the center on a ceiling, so that a lightning protection measure is set for the electrical control cabinet; multiple heat dissipation holes are formed in the bottom plate of the electrical control cabinet body, so that primary heat dissipation of the electrical control cabinet is performed; a dust prevention netis arranged on the outer wall of the bottom plate, so that dust prevention is performed on equipment in the electrical control cabinet; when a temperature sensor or a humidity sensor detects that thetemperature or the humidity in the electrical control cabinet reaches a certain numerical value, a micro processor indicates a driving motor to start a fan to perform secondary heat dissipation or dehumidification; in addition, when a dust sensor detects that the dust in the electrical control cabinet reaches a certain value, the microprocessor indicates a red indicating lamp on a cabinet door tobe turned on so as to remind a working staff to clean dust on the equipment in the electrical control cabinet in time; by virtue of the scheme, any impact damage is not caused; and meanwhile, the electrical control cabinet is simple in structural manufacturing, convenient to process and assemble manually, and convenient to use by people.

The invention discloses a head CT angiography examination headrest. The headrest mainly comprises a headrest main body, a headrest groove is formed in the headrest main body, the examination headrestfurther comprises a micro air pump and a lifting headrest, a clamping adjustment deflation valve, a clamping adjustment inflation valve, a lifting adjustment deflation valve and a lifting adjustment inflation valve are arranged on the headrest main body, a gas outlet end of the micro air pump is connected to one end of a main gas pipe, the other end of the main gas pipe is connected to a main gasinlet pipe, a lifting air bag gas pipe and a right air bag gas pipe are connected to the main gas inlet pipe in series, the tail end of the main gas inlet pipe is connected with a left air bag, the tail end of the lifting air bag gas pipe is connected with a lifting air bag, and the tail end of the right air bag gas pipe is connected with a right air bag. The height of the headrest can be adjustedin a lifting mode, comfort and accurate examination of patients with different body types are met, and the headrest is simple in structure and convenient to machine, manufacture and use by medical staff.

The invention discloses a staff check-in device based on artificial intelligence (AI). The staff check-in device comprises a check-in box body; the front and back of the inner wall of the check-in boxbody are fixedly connected with a track box; one side of the track box is fixedly connected with a turning block; the surface of the turning block is fixedly connected with a torsion spring, and thesurface of the torsion spring is fixedly connected with a first rotating plate; one side of the rotating plate passes through the track box and extends into the track box; a connecting box is fixedlyconnected between the two sides of the inner wall of the track box, and one side of the inner wall of the connecting box is fixedly connected with a fixed spring. The invention relates to the technical field of AI equipment. The staff check-in device based on AI solves the problem that the check-in device is easily damaged due to the collision of hard objects, and the safety factor of the check-indevice is effectively improved; due to the arrangement of a protective board and the track box, the protective board is very convenient to close and open, the operation of a user is facilitated, andthe operation difficulty of a worker is greatly reduced.

The invention discloses a combined biomass breaking machine which comprises a charging device, a discharging device, a breaking device and a feeding device, wherein the breaking device comprises a rotor main shaft, rotor cutter disks, fly cutters, cutter pins and a filter net; the rotor cutter disks are arranged and fixed on the rotor main shaft at an equal interval; the multiple groups of fly cutters are connected with the rotor cutter disks through the cutter pins; gaps are formed between the flying cutters and the filter net; a discharging hole is formed below the filter net and connected with the discharging device; the feeding device comprises an upper pressure roller and a lower pressure roller which form a feeding channel adopting an L-shaped structure; one end of the feeding channel, provided with a larger opening, faces to a feeding hole and is connected with the charging device, and the other end of the feeding channel is connected with the breaking device; the lower pressure roller comprises feeding rollers arranged in parallel and is connected with a charging conveying belt; the upper pressure roller at least comprises a feeding roller and is mounted on an upper pressure roller cover; a hinge is arranged at the feeding hole end of the pressure roller cover. The combined biomass breaking machine has the advantages of simple structure, suitability for breaking various biomass fuels, high breaking efficiency, stability, smaller product particle size and the like.

The invention discloses an electrical fire monitoring detector. The detector comprises a detection body, a bottom base, a mounting rod and mounting bolts. The back surface of the detection body and the bottom base are integrally mounted; a mounting sleeve is arranged outside the bottom base; the mounting rod is integrally mounted outside the mounting sleeve; the top end of the mounting rod is connected with the bottom of a fixing plate, a winding shaft is connected to the middle of the top end of the fixing plate through a bearing, the top end of the winding shaft is coaxially connected with the bottom of a rotating handle, a middle shaft is connected to the middle of the mounting rod through a bearing, and the outer portion of the middle shaft is connected with the inner wall of a windingroller through a torsional spring. According to the electrical fire monitoring detector, when the fastening bolts are used for installation, the installation is not limited by the external environment, the installation work of the whole detector is very convenient, the whole detector is always in a protection state when placed and not installed, and the phenomenon that the detector is impacted and damaged by the outside is avoided.

The invention discloses a submersible sewage pump coupling and lifting device. The submersible sewage pump coupling and lifting device comprises a coupling seat, a coupling frame, a limiting seat, a guider and a submersible sewage pump, two positioning blocks are symmetrically arranged on the two sides of an inlet flange of the coupling seat, two positioning grooves are symmetrically formed in thetwo sides of a flange of the coupling frame, and two C-shaped guide grooves are symmetrically formed in the two sides of the upper portion of the flange of the coupling frame; the coupling frame is connected with an outlet flange of the submersible sewage pump through a bolt and is positioned through two taper pins which are symmetrically arranged on the two sides of the flange; and the couplingseat and the coupling frame are positioned and connected through a positioning inclined plane (1) of the positioning block and a positioning inclined plane (2) of the positioning groove and a flange inclined plane (1) of the coupling seat and a flange inclined plane (2) of the coupling frame, so that the coupling of the submersible sewage pump and the outlet pipeline is realized; the limiting seatis arranged below an inlet of the submersible sewage pump and is used for limiting the transverse displacement of the submersible sewage pump; and the guider is used for guiding steel wire ropes forhoisting and distributing acting force of the left steel wire rope and the right steel wire rope. The coupling and lifting device is applied to coupling and lifting of the large submersible sewage pump with the opening diameter 300 mm or above, coupling and lifting are convenient, sealing is reliable, maintenance is easy and convenient, the service life is long, and the maintenance cost is low.

An ultrahigh-pressure long-service-life throttling valve for testing a high-pressure pump in petroleum drilling comprises a valve body assembly and a valve element assembly, and the valve element assembly is arranged in the valve body assembly in a sliding mode. A plurality of valve seats are fixedly arranged in the valve body assembly in an up-and-down overlapping mode, a plurality of valve elements are fixedly arranged in the valve element assembly in an up-and-down overlapping mode, and the valve seats are matched with the valve elements to form gap throttling conical rings and backflow cavities which are arranged in a multi-stage series connection mode. When ultrahigh-pressure fluid flows through the ultrahigh-pressure throttling valve, the pressure borne by each stage of gap throttling cone ring and the backflow cavity is greatly reduced through throttling of the gap throttling cone rings and the backflow cavity which are connected in series in multiple stages, and the erosion problem of the throttling valve is greatly solved; due to the design of supporting and guiding of the two ends of the valve element assembly, the anti-vibration performance of the throttling valve is greatly improved; the design of the minimum safe throttling gap is adopted between the valve element and the valve seat, even if the valve element is broken, the minimum throttling gap is still kept between the valve element and the valve seat, a throttling channel cannot be blocked, and therefore impact damage to a high-pressure pump and testing equipment cannot be generated.

The invention discloses a multifunctional submersible mixed transportation vortex pump. The vortex pump comprises a suction inlet, a guide impeller, a vortex impeller, a pump shaft and a discharge head, wherein the suction inlet is connected with the guide impeller, the vortex impeller and the discharge head in sequence into a whole; the pump shaft penetrates through the centers of the suction inlet, the guide impeller, the vortex impeller and the discharge head. The vortex pump has the characteristics of high corrosion resistance, freeness from collision components, low required power, high treatment viscosity, high efficiency, prevention of emulsification effect on well fluid, multiple functions, high suitability, realization of mixed transportation of gas and liquid, fundamental elimination of blockage, cavitation, excessive wear, running reliability, high efficiency, low maintenance, long service life and the like, and is widely applied to petroleum suction and conveying processes; the treatment viscosity of viscous media is up to 300,000Pa.c, the required power is low and is not up to a half that of a pump of the same specification, blockage is prevented, the conveying percent of solid particles is up to 75 percent, high and low-viscosity well fluid of which the gas content is up to 68 percent can be conveyed, and all the phenomena influencing the pump performance such as blockage, cavitation, excessive wear, damage and the like are avoided fundamentally.