32results about How to "Increase the collision area" patented technology

The invention discloses a three-way limiting buffering bridge anti-seismic stop dog structure and an arranging and installing method. The bridge anti-seismic stop dog structure comprises a steel corbel, a stop dog lower structure and a stop dog upper structure; the steel corbel is fixed to the side face, in the bridge axial direction, of the top of a pier close to a bridge movable supporting base, the stop dog lower structure is fixed to the top of the steel corbel through bolts, a groove is formed in the lower portion of the stop dog upper structure, the stop dog upper structure is fixed to the bottom of a main beam of the bridge through bolts, and an impact block is arranged on the upper portion of the stop dog lower structure. Relative large displacement between a beam body and the pier in the bridge axial direction, bridge transverse direction and vertical direction can be effectively limited, damage to the movable supporting base and expansion joints is reduced, and the beam body is prevented from falling in the bridge axial direction and bridge transverse direction and prevented from vertically getting away from the supporting base to cause damage on the supporting base, beam cocking damage and vertical impact damage between the beam body and the supporting base. The three-way limiting buffering bridge anti-seismic stop dog structure is simple in structure, convenient to construct, easy to repair and replace and suitable for new and old bridges.

A field emission element used on background lamp makes form of fluorescent surface on fluorescent body be a projected surface in order to increase coating area of fluorescent body for raising efficiency of field emission element utilizing carbon nanotube as electronic emission source.

The invention discloses an oil baffle plate. The oil baffle plate is connected to the upper end of a crank shaft and comprises a transmission part fixedly connected with the crank shaft and an oil-gas separation part vertically arranged at the upper end of the transmission part, wherein the oil-gas separation part is provided with a plurality of strip-shaped fan blades which are obliquely distributed relative to the axis of the crank shaft. After the oil baffle plate is connected to the upper end of the crank shaft and an oil-gas mixture flows through the oil baffle plate, the oil-gas mixture suffers from a centrifugal force under the rotary effect of each strip-shaped fan blade; the mass of freezing oil is obviously greater than that of high-pressure gas so that the freezing oil is thrown to the outer edge of the oil baffle plate and the high-pressure gas is gathered at the central position of the oil baffle plate; meanwhile, the collision area of the oil-gas mixture and the oil baffle plate is enlarged under the effect of each strip-shaped fan blade so that the high-pressure gas and the freezing oil are easy to separate. The oil baffle plate provided by the invention can be used for easily separating the freezing oil mixed with the high-pressure gas so as to reduce the freezing oil flowing out from a compressor. The invention further discloses the compressor with the oil baffle plate.

The invention discloses a filter screen of the range hood. The filter screen comprises a mounting disc, a rim and a quality of blades; the mounting disc is suitable for being mounted on an output shaft of a motor; the rim is arranged around the mounting disc; and a quality of the blades are arranged between the mounting disc and the rim in a radial manner by taking the center of the mounting discas a circle center, the root part of the blade is arranged on the mounting disc, the end part of the blade is mounted on the rim, at least one blade and the projection of the root of the adjacent blade on the outer peripheral wall of the mounting disc are arranged at intervals in the axial direction of the mounting disc, or the projection of the end part on the outer peripheral wall of the mounting disc is separated from the axial direction of the mounting disc. The total area of the blades can be increased as much as possible, then the contact area between the oil fume and the filter screen is increased, therefore, the oil smoke can be filtered as much as possible, the range hood can be reduced to enter the range hood, when the motor is driven by the motor to rotate, the function of air supply and pressurization is achieved, and the oil fume suction effect can be ensured.

The invention provides a nonmetallic ore pulverizing mill, which comprises two rows of grinding hammer heads; four strike posts, each of which being of a tetrahedron structure, are arranged between the two rows of the grinding hammer heads and are annularly and uniformly distributed on a mill shell; and slag discharge holes are formed in the second row of the grinding hammer heads and the lower part of a lining plate for synchronously discharging impurities as well as difficultly ground particles and foreign matters in ores, so that nonmetallic ore ultrafine pulverizing is realized, and the purity and the pulverizing efficiency of ore powder are improved.

The invention belongs to the technical field of fire fighting, particularly relates to a fireproof shell for a fire-fighting video transmitter, and aims to solve the problem that smoke around a camera lens is not dispersed. The fireproof shell comprises a base, wherein the outer wall of the top of the base is fixedly connected with a fireproof shell body; a smoke suction square pipe is fixedly connected to the outer wall of one side of the fireproof shell body; a smoke suction fan is fixedly arranged between the inner wall of the top and the inner wall of the bottom of the smoke suction square pipe; a water tank is fixedly connected to the inner wall of the top of the fireproof shell body; a water inlet pipe is fixedly arranged on the outer wall of the top of the water tank; a smoke outlet square pipe is fixedly connected to the inner wall of one side of the water tank; and the smoke outlet square pipe is bent. According to the invention, during working, because the smoke outlet square pipe is bent, smoke around the camera lens is absorbed through one end of the smoke outlet square pipe, and then is discharged to the tail part of the device through the smoke outlet square pipe, so that the purpose of removing the smoke around the camera lens is achieved.

The invention discloses an alternating electric field fine dust electrocoagulation explosion suppression device and method. The device mainly comprises a shell, high-voltage plates, grounding plates,prickles on the high-voltage plates and the grounding plates, insulating plates, middle plates and a high-voltage AC power supply. The high-voltage plates are connected to the high-voltage AC power supply, the grounding plates are connected to the ground, the high-voltage plates and the grounding plates are alternately distributed with intervals, the plates are equipped with the prickles, the middle plates comprise the high-voltage plates, the grounding plates, the insulating plates between the high-voltage plates and the grounding plates, guiding plates before and behind the middle plates, and a high-pressure ventilation pipe at the ends of the middle plates, and the middle plates are provided with round through holes distributed in a rectangular array. According to the invention, throughfine dust in an electrocoagulation gas-solid double-phase air flow, the particle size of dust can be effectively increased, the explosion is suppressed or the explosion intensity is reduced, the structure is simple, the flow resistance is small, and the improvement of the dust removal and collection efficiency of a subsequent dust collecting device is facilitated at the same time.

The invention discloses a flue gas treatment device for environmental protection engineering. The flue gas treatment device comprises a shell, and further comprises a dust removal mechanism and a desulfurization mechanism. The dust removal mechanism is specifically composed of a cross rod, a positive electrode plate, a negative electrode plate, a rotating rod, sliding blocks, a motor, an eccentric block, a boosting transformer and a rectifier. The cross rod is welded to the inner wall of the shel. One side of the surface of the cross rod is rotatably connected with the positive electrode plate in a matched mode, and one side of the surface of the cross rod is rotatably connected with the negative electrode plate in a matched mode. The surfaces of the positive electrode plate and the negative electrode plate are fixedly connected with the sliding blocks which are made of an insulating material. The inner wall of the shell is rotatably connected with the rotating rod in a matched mode, and the eccentric block is welded to the surface of the rotating rod. The motor is installed on the inner wall of the shell. The boosting transformer is installed on one side of the inner wall of the shell, and the rectifier is installed on one side of the inner wall of the shell. The whole device can achieve automatic filtering, the filtering cost is low, the overall filtering efficiency is high, and the device can be suitable for filtering flue gas of factories in the manufacturing industry on a large scale.

The invention relates to a kinetic energy interceptor based on head deflection. In order to overcome the defects that an existing kinetic energy interceptor is poor in hit precision and large in hit deviation for a low-altitude target, the kinetic energy interceptor providing lateral overload by means of head deflection is designed and sequentially comprises a guide cabin, an instrument cabin, a kinetic energy combat cabin and a tail section which are connected in series from front to back, and an integrated comprehensive control machine and a battery are installed in a head cone cabin. Each electrical single machine arranged in the cabin section is connected with a battery through a power supply cable, and data information is transmitted through a control cable; a head deflection mechanism is installed at the rear end of the guide cabin, the integrated comprehensive control machine rudder control module sends a deflection instruction, and the head deflection mechanism deflects in the pitching direction and the yawing direction according to the instruction and provides lateral pneumatic capacity; the kinetic-energy combat cabin is connected with the instrument cabin through a center main shaft, an electric thrust rod is installed in the center main shaft, a kinetic-energy intercepting folding rod is installed outside the center main shaft, a three-section folding mode is adopted, and the folding rod is placed on the surface of the projectile body after being folded.

The invention discloses a centrifugal clutching transmission mechanism which comprises a ratchet wheel (1) and an output eccentric shaft (2) which is arranged at the rear end of the ratchet wheel (1)and rotationally matched with a central hole (1.1) of the ratchet wheel (1), wherein the front end face of the ratchet wheel (1) is provided with a shaft sleeve (1.3) which is fixed into a whole withthe ratchet wheel (1) and coaxial with the central hole (1.1) of the ratchet wheel (1); the front end face of the ratchet wheel (1) is also provided with longitudinally distributed pulling plate components and transversely distributed pressing plate components and a guide post (5) which is matched in an eccentric hole (1.2) of a flywheel (1) in a sliding way, wherein the longitudinally distributedpulling plate components and the transversely distributed pressing plate components perform centrifugal motions; a return spring (6) is sleeved on the guide post (5); the output eccentric shaft (2) is provided with a connection block (7) which is fixed into a whole with the output eccentric shaft (2) and provided with symmetrical grooves (7.1); the pulling plate components and the pressing platecomponents are mutually buckled; the pressing plate components are abutted against the end face of the head part of the guide post (5); and the outer cylindrical surface of the tail part of the guidepost (5) is abutted against one corresponding groove (7.1) according to the steering of a motor. The invention has stable performance, less energy consumption, high working efficiency, long service life and difficult damage.

The invention discloses a loosening device for lathe machining, which comprises a mounting plate, an elastic buffer part, a movable frame, a telescopic part, push-pull blocks, clamping jaws and an elastic part; the elastic buffer part is arranged at one end of the mounting plate; the movable frame is arranged at the end, away from the elastic buffer part, of the mounting plate, and the movable frame is in sliding connection with the mounting plate; the movable frame slides in the direction close to or away from the elastic buffer part and is matched with the elastic buffer part; a telescopic piece is arranged at the end, away from the elastic buffer part, of the movable frame; the two push-pull blocks arranged side by side are arranged at the lower end of the telescopic piece, and the two clamping jaws are arranged between the two push-pull blocks; the upper ends of the two clamping jaws are both rotatably connected with the movable frame; the elastic part used for separating the two clamping jaws are arranged at the upper ends of the two clamping jaws; and protruding parts are arranged on the sides, close to the clamping jaws, of the push-pull blocks, and the protruding parts are matched with the clamping jaws. The loosening device of the invention can replace manpower to conduct material loosening operation, the material loosening difficulty is reduced, and the material loosening efficiency and the discharging efficiency are improved.

The invention relates to the technical field of treatment of nitric oxide in flue gas from industrial kilns, in particular to a denitration device for flue gas from a cement kiln and a use method of the denitration device. The denitration device comprises a kiln tail flue, an SNCR denitration reaction unit, a preheater, a low-temperature dust removal unit, an SCR denitration reaction unit and a chimney which are sequentially connected along a flue gas flowing direction, wherein the SNCR denitration reaction unit comprises a first mixer; the SCR denitration reaction unit comprises a second mixer and an SCR reactor which are sequentially connected along the flue gas flowing direction; an ammonia gas source sprays ammonia gas into the first mixer and the second mixer respectively; and the low-temperature dust removal unit comprises a low-temperature dust remover. According to the denitration device for the flue gas from the cement kiln provided by the invention, denitration operation cost is reduced on the basis of ensuring denitration efficiency.

The invention discloses an anti-winding device for a twin-tub washing machine. The device comprises a machine body and a washing cover plate, the upper end of the machine body is connected with a washing cover plate through a clamping hook; a dehydration cover plate is arranged at the right end of the washing cover plate; a water inlet is formed in the upper end of the washing cover plate; a washing timer is arranged at the right end of the water inlet; a drainage switch is arranged at the right end of the washing timer; a dehydration timer is arranged at the upper end of the dehydration coverplate; the upper end of the machine body is connected with a washing timer, a drainage switch and a dehydration timer in a sleeved way; an anti-winding shaft comprises a rotating shaft, a brush and abase; the outer surface of the rotating shaft is sleeved with the brush, and the lower portion of the rotating shaft is fixedly connected with the base through welding, so that the collision area ofclothes and the washing machine is increased, the clothes are cleaned more deeply due to the brush, the clothes cannot be wound around the rotating shaft due to rotation of the rotating shaft, and theclothes can be prevented from being wound around one another.