32results about How to "Reduce the chance of accidental injury" patented technology

The invention relates to a disposable safe transfusion needle composed of a conduit, a puncture needle stand, a puncture needle, a spring and a protective sleeve, characterized in that: the protective sleeve is in the needle point position of the puncture needle and completely covers the needle point when leaving factory; when in use, the handle of the protective sleeve is pinched by hand, then the protective sleeve is distorted so that the needle point of the puncture needle points to the needle point outlet on the protective sleeve, and then the protective sleeve is pulled downwards to protrude out the puncture needle until the protective sleeve is clamped with the needle stand; and after being used, the protective sleeve is lightly pushed to the direction deviated from the needle handle by hand, the protective sleeve clamped with the puncture needle stand is disengaged; and due to the actions of the spring and an inner inclined surface on the protective sleeve, when the needle point returns into the protective sleeve, the needle point automatically deflects in the direction without freely protruding forwards.

The invention discloses a fastening device for assisting in tightening a three-jaw chuck on a lathe. The fastening device comprises a right-angle hanging plate with a bolt hole, wherein an air cylinder is embedded in the horizontal end surface of the right-angle hanging plate; the lower end of the air cylinder is in power connection with a lifting rod; an arc-shaped track is arranged at the lowerend of the lifting rod; and a swinging assembly is arranged in the arc-shaped track. According to the fastening device disclosed by the invention, a plurality of groups of limiting rods which are clamped on double surfaces and are arrayed along the three-jaw chuck in an annular manner are utilized, and the limiting rods can be movably separated from abutting against an extension rod of the three-jaw chuck, so that synchronous rotation or disconnection transmission of the three-jaw chuck is controlled; the position change of oil liquid difference in a sealed pipeline is changed, so that the limiting capacity of rotation of a double-surface clamping structure part is realized, and the ordered working steps of the clamping structure part clamping-sliding out-releasing-sliding back along a circular rail are realized; and the whole process can be controlled by a program, and manual intervention is not needed, so that the problem that a workpiece is not completely fixed due to insufficient force is avoided, and the probability that workers are accidentally injured by a cutter is reduced.

The invention relates to a badminton racket. The badminton racket comprises a racket head and a racket rod, wherein the racket head comprises a racket frame and racket lines penetrating in the racket frame, the bottom of the racket frame is connected with the top of the racket rod through a connection part, the bottom of the racket rod is connected with a racket handle, and a plurality of air guiding grooves are formed at two sides of a position, close to the connection part, of the bottom of the racket frame along the longitudinal axis central line. The plurality of air guiding grooves do not affect the strength of the racket, are capable of effectively lowering the gravity center position of the badminton racket, and lowers the difficulty of swinging of the racket. Viridescent fluorescent powder is arranged on the racket lines of the badminton racket, is capable of indicating the position of the racket lines at night, and assists in accurate batting to improve the accuracy of batting. The badminton racket is made of special aluminum alloy, is good in batting feeling, good in vibration absorption, shuttlecock control and safety, and is suitable for being used by amateurs.

The invention discloses a composite steel high-frequency quenching method. A composite steel high-frequency quenching device is provided. The quenching device comprises a device body, wherein one sideof the device body is fixedly connected with a cooling box; one side of the cooling box is fixedly connected with a cleaning mechanism; a quenching mechanism and a smoke absorbing mechanism are arranged at the position, located over the cooling box, of one side of the device body; and the quenching mechanism is located in the smoke absorbing mechanism. The smoke absorbing mechanism is added in the device, high-temperature poisonous gas generated due to cooling in the metal workpiece quenching procedure process can be absorbed through the device, the situation that the high-temperature poisonous gas is diffused, and consequently the construction environment of workers is influenced is prevented, and harm to human health is reduced; meanwhile, an added transmission mechanism is matched witha clamping and fixing mechanism, and an annular gasket metal workpiece can be subjected to the quenching procedure; and compared with a traditional manual quenching procedure, the quenching efficiency is high, the probability of accidental injuries in the quenching process is reduced, meanwhile, continuous work can be conducted, and the work efficiency of the device is improved.

The invention relates to the technical field of PCB processing, and particularly discloses a convenient-to-operate PCB welding platform, which comprises a workbench main body, a table surface, an overturning plate, a tool rack and a storage box, wherein the table surface comprises a table surface plate, a table surface frame and a blocking sheet lining rod, the table surface plate is fixedly connected to the front surface of the table surface frame close to the top, rotating shafts are fixedly connected to the centers, close to the top, of the left and right sides of a rotating plate frame, and the overturning plate is rotationally connected to the position, close to the bottom, of the inner wall of the table surface frame through a rotating shaft. According to the invention, the table surface is rotatably connected with the overturning plate through the rotating shaft, so that the purpose that the overturning plate can be flexibly turned over is achieved, the switching function of rapidly switching PCB welding tools is achieved, the space is saved, and the working efficiency and the welding precision are improved; and rotation of the overturning plate is relieved or limited by opening and closing the spring positioning pin, so that switching of rapid fixing and relieving of rotation limitation of the overturning plate is achieved, and the overturning plate can be rapidly and flexibly switched.

The invention discloses a virtual prop control method. The method comprises the following steps: displaying a virtual operation object in a target game application; when a first touch operation for the throwing control is detected, controlling the virtual operation object to enter a throwing preparation state, and displaying a throwing track and a prompt icon located at a track drop point position, wherein the throwing track is a track which is sent from a track starting point position where the virtual throwing prop is located to the track drop point position and is used for previewing a throwing path; when the first touch operation is continuously detected within a preset duration, controlling the prompt icon to move from the track drop point position to the track starting point position along the throwing track; and when it is detected that the first touch operation is released within the preset duration, controlling the virtual operation object to throw a virtual throwing prop. The invention further provides a device, equipment and a medium. According to the method, the urgency feeling of the virtual throwing prop when the virtual throwing prop is close to explosion can be vividly restored, prompting performance and a focusing degree are enhanced, and the probability of accidental injury is reduced.

The invention provides sensing equipment and method for an automatic grabbing process of a tower crane lifting hook. The sensing equipment comprises a controller, an automatic lifting hook, a lifting hook driving mechanism, a visual sensor and a sensor driving mechanism; the automatic lifting hook is connected with the lifting hook driving mechanism, the visual sensor is connected with the sensor driving mechanism, and the lifting hook driving mechanism, the sensor driving mechanism and the visual sensor are all connected with the controller; when the controller controls the automatic lifting hook to move through the lifting hook driving mechanism, the controller further controls the visual sensor to move along with the automatic lifting hook through the sensor driving mechanism and controls the visual sensor to collect visual sensing signals towards the area where the automatic lifting hook is located, so that the automatic lifting hook is controlled to grab goods according to the visual sensing signal. The safety accident rate of tower crane hoisting can be effectively reduced.

The invention relates to an auxiliary light source of an ultrasonic scalpel, belonging to surgical operating instruments. In ordinary surgical operations, the ultrasonic scalpel is generally used for carrying out operations such as tissue separation, and the like, but when abdominopelvic cavity deep part operations or perineum operations are carried out, operative field lighting is difficult, which causes operation difficulties and risks. Aiming to solve the problem, the invention ensures that the auxiliary light source can be conveniently fixed on the rod of the ultrasonic scalpel and turned on through a design of a clamping groove of a small electric torch, a light gathering cover and a switch capable of being fixed and moves along with the ultrasonic scalpel to lighten a scalpel head operation area so as to provide good operative field lighting in deep part operations.

The invention relates to the technical field of pulpers, and discloses a waste paper cutting device capable of preventing a cutter from accidentally injuring people after completion of cutting; the waste paper cutting device comprises a workbench; the right side of the workbench is movably connected with a rotary knob, the left side of the rotary knob is fixedly connected with a threaded rod, andthe side, away from the rotary knob, of the threaded rod is movably connected with a rotary disc. According to the waste paper cutting device capable of preventing the cutter from accidentally injuring people after completion of cutting, the rotary knob is rotated, the threaded rod drives the rotary disc to move left and right at the moment, the rotation ratio between a driven disc and a driving disc is further changed, and the rotation speed of a cutting blade is changed at the moment; therefore, the effect that the cutting speed can be adjusted according to different materials is achieved. After cutting is completed, a third spring drives a second trapezoidal block to move leftwards, at the moment, the second trapezoidal block impacts a metal ball to trigger a stop button, a driving motor of the device stops working, and thus the effect of reducing the probability that a cutting knife accidentally hurts people during cutting is achieved.

The invention discloses a novel detachable water inlet device. The novel detachable water inlet device comprises a fermentation box, a water inlet device body and a central processing unit; the waterinlet device body comprises a barreled water device and a water tank, wherein the barreled water device is fixedly installed on one side of the outer wall of the fermentation box, the water tank is fixedly installed on one side of the interior of the fermentation box through a fixing support, and a water level alarm is fixedly installed at the position, close to the top end, of the inner wall of the water tank through bolts; the water inlet device body is fixedly mounted in the fermentation box; and the central processing unit is fixedly mounted in a control box in the fermentation box. According to the device, a place where a traditional water inlet device must be close to a water source is transformed into a place which can utilize the portability of barreled water so as to provide the water source, so that the overall convenience of the fermentation box can be effectively improved, and the fermentation box can work in an outdoor open place.

The present invention relates to a multi-dimensional snow and ice removal device of a power network and an application method thereof, pertaining to the technical field of power maintenance equipment. The device includes a frame; an opening is arranged on one side of the frame and used for placing wires into the frame; two rollers are arranged in the frame, the middle surface of each roller is concave relative to both ends of the roller, so that the roller can be put on the wire to roll and drive the device to move while remaining stable; and two positions, on both sides of each roller, on the frame are both provided with arc hoops, wherein the arc hoops are linked with the frame via cylinders, one side of each arc hoop is a blade edge. The working method of the device comprises the steps of placing the wires under the rollers inside the frame from the opening, clamping the wires via the arc hoops by controlling the cylinders, moving the device and carrying out deicing operation by using the blade edges of the arc hoops. The multi-dimensional snow and ice removal device of the power network has the advantages of operation easiness, good effect for deicing, high adaptability(especially in a double-line condition), convenience for carrying and on-site installation, saving of manpower and material cost and reducing of the probability of accidental injuries to an operator.

The invention discloses an underground pneumatic transfer device, which comprises a rotary fixing device, a central pillar and a lifting rod; the rotary fixing device is connected with the bottom part of the central pillar; the top end of the central pillar is provided with a fixing ring, and the lower end of the central pillar is provided with a pneumatic motor and a worm speed reducer; one end of the pneumatic motor is connected with an operating valve through a pipeline A and a pipeline B; the air inlet of the operating valve is connected with a high-pressure gas source; the other end of the pneumatic motor is connected with the worm speed reducer; the output shaft of the worm speed reducer is connected with a roller; a steel wire rope is arranged in the roller; the tail end of the lifting rod is provided with a leading sheave, and the front end of the lifting rod is provided with a lifting tackle; the steel wire rope penetrates through the leading sheave and the lifting tackle. According to the underground pneumatic transfer device disclosed by the invention, energy is provided by high-pressure air by replacing electricity, so the use safety is enhanced, and the use range is broadened.

The invention provides a pressure type polishing surgical instrument for eyes. The pressure type polishing surgical instrument comprises a handle, an adapter and a spray head pipeline, wherein a first liquid outlet is formed in the end, away from the handle, of the spray head pipeline, and the first liquid outlet is used for spraying out liquid, so that the purpose of polishing front and rear capsules through liquid spraying is achieved; and direct contact with a metallic material of a traditional polishing instrument is absent, and meanwhile, water flow with certain pressure can be used for thoroughly removing epithelial cells remained on surfaces and at corners. Therefore, in a cataract surgery process, the purpose of improving safety and effectiveness when the front and rear capsules are polished is achieved, and the situations that eye tissue is damaged and the epithelial cells are not completely removed due to a traditional metallic polisher are reduced.

The invention discloses a single-point rapid pearl acquisition method based on pearl culturing and belongs to the field of pearl acquisition from clam bodies. According to the single-point rapid pearlacquisition method based on pearl culturing, the difficulty of alignment can be reduced through the use of a single-point reverse clamp in the pearl acquisition process; meanwhile, in the process ofsplitting pearl mussels, the single-point reverse clamp can be operated with one hand, and the other hand can assist in fixing the pearl mussels, so that the operation stability is improved. Comparedwith the prior art in which two cutters are used for acquiring pearls, the method has the advantages that the stability is effectively improved, the probability that pearl acquisition personnel are accidentally injured is lowered, more pearls can be rubbed and washed at the same time by using soft cotton for filing in the rubbing and washing process, the working efficiency is thus improved, accidental damage caused by fingernails and other hard objects to the surfaces of the pearls is effectively prevented in comparison with manual rubbing and washing, the damage rate is thus effectively lowered, and the difficulty and workload of treating the surfaces of the pearls in the later period are reduced.