52results about How to "Not easy to jump" patented technology

The invention discloses a resonant tuning fork liquid density sensor with piezoelectric actuation and piezoelectric detection, comprising a tuning fork body, a clamped body, a piezoelectric actuator, a piezoelectric vibration pickup, and a temperature sensor, wherein, the piezoelectric actuator and the piezoelectric vibration pickup are arranged on the clamped body, the generated alternating force is transmitted to the tuning fork body by the piezoelectric actuator to let the tuning fork body produce simple harmonic vibration with intrinsic frequency itself; when immersing the tuning fork body in a liquid under test, the additional mass of the tuning fork body changes so as to let the vibration frequency of the tuning fork body change; by picking up the vibration signal with the piezoelectric vibration pickup, the detection of the vibration frequency of the tuning fork body is realized; because the vibration frequency of the tuning fork body is a monotone function of the liquid density, thus the real-time on-line detection of the liquid density is realized; and the temperature sensor is arranged on the clamped body for real-time detection of the temperature of the liquid under test, and is used for compensating the variation of the elastic modulus of the tuning fork body. According to the invention, the high precision on-line detection of densities of various liquids at different temperature can be realized.

The invention relates to a tubing coupling buckle installation auxiliary device. The tubing coupling buckle installation auxiliary device mainly comprises a base, a handle and a push rod. The handle is connected with the push rod through a connection rod. The push rod is located in a limiting sleeve which is connected with the base through a fixing plate. The handle is connected with the fixing plate through a hinge. The push rod is fixedly connected with a movable block. An extrusion block is arranged in the movable block. A buckle containing table and a fixing column are fixed to the left side of the base. The tubing coupling buckle installation auxiliary device has the advantages that positioning is conducted through a fixture, the problem that the pure manual assembly is low in efficiency is solved, and the assembly percent of pass is increased.

The invention provides a single-input double-output transmission device. The single-input double-output transmission device comprises a base, and further comprises planet wheels, an input shaft, a fixed gear, a rotary supporting frame and transmission shafts rotationally connected with the rotary supporting frame. The input shaft is provided with a central gear. The transmission shaft is provided with eccentric bearings and a transmission gear engaged with the central gear. The planet wheels are provided with inner gear rings and bearing holes, the tooth number of the inner gear rings is 1-4 larger than that of the fixed gear, and the fixed gear is fixedly connected with the base. The eccentric bearings are installed in the bearing holes. The rotary supporting frame is provided with an outer gear ring and a first end surface tooth, the outer gear ring is coaxial with the input shaft, and the plane where the first end surface tooth is located is perpendicular to the input shaft. The two ends of each transmission shaft are rotationally connected with the rotary supporting frame, the rotary supporting frame is used for supporting the transmission shafts, other supporting parts are not needed, and thus the size of the whole transmission device is relatively small.

The invention relates to a flea beetle trapping device using wind energy. The device includes a trapping mechanism, a storage mechanism, an alignment crank slider mechanism and an wind energy mechanism, wherein the storage mechanism is installed on the lower portion of the trapping mechanism, and the alignment crank slider mechanism and the wind energy mechanism are installed on the upper portionof the trapping mechanism. The whole trapping mechanism is yellow and includes a trapping outer cover, a trapping inner cover and a brush, wherein the trapping inner cover is installed on the inner side of the trapping outer cover, and the brush is installed on the upper portion of the trapping inner cover; an insect accommodating external chamber is formed between the trapping outer cover and thetrapping inner cover to serve as an intermittent area for insects; the inside space of the trapping inner cover refers to an insect accommodating internal chamber; the trapping outer cover is provided with an outer-cover insect inlet along the side wall, and the trapping inner cover is provided with an inner-cover insect inlet along the side wall; the upper end in the storage mechanism is provided with a tapered escaped insect funnel, and a cruciferous vegetable extract solution is placed at the inside bottom of the storage mechanism to induce beetles. The structure is simple, and the devicehas the function of preventing the insects from escaping, meets field application needs, has high trapping efficiency, is good in effect, saves energy and is environmentally friendly.

The invention belongs to the technical field of inflating valves, and particularly relates to a safe and energy-saving inflating valve solving the technical problem that in the prior art, sealing performance is poor. The safe and energy-saving inflating valve comprises a valve body with an air inlet channel, the air inlet end of the air inlet channel is provided with an air inlet cavity chamber, the air outlet end of the air inlet channel is provided with an air outlet cavity chamber, an inner annular sealing cone is formed between the air inlet cavity chamber and the air inlet channel, the valve body is internally provided with a valve element with the two ends inserted into the air inlet cavity chamber and the air outlet cavity chamber respectively, the valve element is provided with an outer annular sealing cone matched with the inner annular sealing cone, an elastic control assembly is arranged between the valve body and the end, provided with the outer annular sealing cone, of the valve element, the valve element is further provided with a sealing structure capable of being located between the inner annular sealing cone and the outer annular sealing cone through the elastic control assembly when the air inlet cavity chamber of the air inlet channel stops supplying air to the air outlet cavity chamber, and the valve element is fixedly connected with the sealing structure through a circumferential structure. The safe and energy-saving inflating valve has the advantages of being good in sealing performance and high in practicality.

The invention discloses a quenching strengthening process of a thin blade cutting edge. The process is characterized in that after a thin blade is integrally quenched by a traditional quenching process, the integrally-quenched thin blade is subjected to rough sharpening; the roughly-sharpened thin blade is moved at a high speed, the relative moving speed is 100-400 mm/s, when the thin blade moves,a high-power-density laser light spot is adopted to irradiate the cutting edge, the power density is larger than or equal to 150 W/mm<2>, the cutting edge forms a laser quenching layer, and finally fine sharpening is carried out, so that the thin blade with the quenched-strengthened cutting edge is obtained. A high-power-density laser device is matched with the fast-moving thin blade, so that thecutting edge of the thin blade is protected from being melted, the quenching effect is achieved, the sharpness, the wear resistance and the service life of the thin blade are improved, and the best performance of the material of the thin blade is played.

The invention relates to the technical field of refrigerator ice making, and provides a refrigerator and an ice maker assembly thereof. The ice machine assembly includes a base and an ice storage box, the base includes two opposite side walls, at least part of the ice storage box is movably inserted between the two side walls; at least one side wall is provided with a first The protrusion and the first limiting part and the second limiting part located on the adjacent two sides of the first protrusion, the first protrusion has elasticity; the ice storage box is provided with a second protrusion and a third protrusion, The second protrusion is movably locked between the first protrusion and the first limiting portion, and the third protrusion is movably locked between the first protrusion and the second limiting portion. The elastic limit of the first limiting part and the second limiting part by the first elastic protrusion makes it difficult for the ice storage box to jump relative to the base when it is plugged into the base, thereby reducing the risk of falling. Collision noise between the ice storage bin and the base and between the ice cubes and the ice storage bin body when freezing.

The invention relates to a bailey beam construction trestle expansion joint system and a construction method, and the system comprises at least two bailey beams, the two bailey beams are arranged at intervals, and a gap is formed between the two bailey beams; the two bridge deck slabs are respectively arranged on the corresponding bailey beams, and a bridge deck pavement layer is arranged on the top surface of each bridge deck slab; the cover plate is located between the two bridge deck pavement layers, and the cover plate is laid above the gap; one end parts of the two connecting rods are respectively hinged with the corresponding bailey beams, the other end parts of the two connecting rods are respectively hinged with the cover plate, and the top surface of the cover plate is flush with the top surface of the bridge deck pavement layer, so that when a vehicle passes, the vehicle is not easy to jump, and when the vehicle jumps, the cover plate is not easy to fall off. The cover plate can slightly move left and right in the horizontal direction, and the cover plate is not prone to damage or deformation, so that the structure is not prone to bumping, and the cover plate is not prone to damage or deformation.

The invention discloses a rapid detector for line maintenance of a wire. The detector comprises a frame, a clamp meter and first rollers, a connection rack is arranged in the outer side of the frame,movable wheels are arranged in the inner side of the connection rack, the movable wheels are connected to the connection frame rack via movable shafts respectively, the connection rack is fixedly connected to the frame, a pipe is arranged in the outer side of the frame, the bottom of the frame is connected with second support bars, the first rollers arranged in the bottom ends of the second support bars respectively, and connected to the second support bars via connecting shafts respectively, and first support bars are arranged in the top of the frame. The rapid detector is provided with the frame, the clamp meter and the frame form a detachable structure via screws, when a line of the bare wire needs current detection, the clamp meter can be disengaged from the frame by dismounting the screws, a worker can take the wire by hand, and implements current detection on the bare wire.

The invention relates to the related technical field of wood processing machinery, and discloses a wood barking machine for wood processing. The wood barking machine comprises a rack, a driving motoris fixedly mounted on the surface of the rack, a barking knife is fixedly mounted on an output shaft of the driving motor, a speed change gear box located on one side of the surface of the rack is fixedly mounted on the output shaft of the driving motor, a barking auger located in an inner cavity of the rack is fixedly mounted on a speed change shaft of the speed change gear box, and a cutting knife is fixedly mounted on the side wall of the barking auger. The cutting knife is arranged on the side wall of the barking auger, and therefore in the rotating process of the barking auger, the outerbark of wood is scratched by the cutting knife through extrusion between the barking auger and the barking knife, meanwhile, the scratched bark is torn out through the barking knife, and therefore thewood is not prone to jumping through extrusion between the barking auger and the barking knife; and meanwhile, the phenomenon that wood is not barked completely due to tree filaments is avoided, andfinally the aim of efficient barking is achieved.

The invention discloses a transmission mechanism of a sheet inserting machine. The transmission mechanism comprises an integral bottom plate, a second-stage transmission module and a third-stage transmission module, wherein the second-stage transmission module and the third-stage transmission module are sequentially arranged on the integral bottom plate, and the second-stage transmission module and the third-stage transmission module are used for providing different transmission speeds; the second-stage transmission module comprises a second-stage transmission module supporting plate; a second-stage transmission main shaft, a second-stage driven shaft, a second-stage transmission motor and a second-stage transmission belt are integrated on the second-stage transmission module supporting plate; the third-stage transmission module comprises a third-stage transmission module supporting plate, and a third-stage transmission main shaft, a third-stage driven shaft, a third-stage transmissionmotor and a third-stage transmission belt are integrated on the third-stage transmission module supporting plate; and the second-stage transmission module supporting plate and the third-stage transmission module supporting plate are detachably arranged on the integral bottom plate. The transmission mechanism of the sheet inserting machine is stable in operation, the belts are not prone to jumping, disassembly and assembly are convenient, and later maintenance is facilitated.

The invention discloses a boiler feedwater sequential control logic optimization system and a control method and belongs to the technical field of removal of measured value jumping of boiler feedwaterlevel meters. By the system, the measured value about water level acquired by the boiler feedwater level meter bodies is not easy to jump, and currently actual water level information of the boiler is acquired according to information of the water line scales where lifting water in water level display tubes reaches and is checked when water levels of three points in the boiler are at the equal altitude. The system comprises three boiler water level meter bodies, and further comprises a light shield and three light guide posts; the boiler water level meter body comprises the water level display tubes containing the lifting water; the water level display tubes are provided with water line scales; the light shield is hermetically closely fixedly connected to three water level display tubes through three shield bottom holes at the bottom surface of the light shield.

The invention relates to a clamp for machining a submersible pump shell blank, and relates to the field of clamps. The clamp comprises a chuck body provided with a sliding groove formed in the radial direction of the chuck body; the two-way lead screw is rotationally connected into the sliding groove, the two-way lead screw is fixed relative to the chuck body in the axial direction of the two-way lead screw, and the two-way lead screw is provided with two transmission thread parts with opposite rotating directions; the sliding blocks are connected into the sliding grooves in a sliding mode in the axial direction of the two-way lead screw, and the two sliding blocks are in threaded connection with the two transmission threaded parts of the two-way lead screw correspondingly; the supporting plate is arranged on the sliding block and slides in the axial direction of the bidirectional lead screw along with the sliding block. The clamping jaws are arranged on the supporting plate, the two clamping jaws are oppositely arranged, the supporting plate provides a supporting area for the clamping jaws, the supporting area is located in the middle of the clamping jaws, each clamping jaw is provided with two sets of clamping points arranged at intervals in the axial direction of the chuck body, the supporting area is located between the two sets of clamping points, and each set of clamping points comprises two clamping points; and each group of clamping points can swing relative to the supporting area. The blank clamping device has the effect of reliably clamping the blank.