70results about How to "No personal injury" patented technology

The invention discloses an environment-friendly method for prolonging the service life of a twist drill based on heat pipe phase changes, so durability of a standard twist drill with a straight shank can be remarkably improved under a drilling especial for high-speed drilling machining condition. According to the method, a heat pipe theory and technology are brought in, heat pipe phase change heat transfer characteristics are made use of, cutting fluid is not adopted, and the cutting temperature of the main cutting edge and the cutting temperature of the chisel edge part of the twist drill are rapidly lowered with the help of a heat pipe to reduce the abrasion rate of the main cutting edge and the chisel edge part of the twist drill so that the purpose of prolonging the service life of the twist drill is achieved. Heat pipe phase change heat transferring is adopted in the method, so the heat pipe is higher than cutting fluid in heat transfer efficiency; the heat pipe technology is adopted, so the heat pipe is more environment-friendly than cutting fluid, and personal injuries to operation staff do not exist. In addition, the heat pipe adopted in the method is cheaper than the cutting fluid in market price, and therefore manufacturing cost of products of enterprises can be reduced.

The invention provides an interactive anti-hitting training aid. A support frame is fixedly arranged on a base and extends upward, one part of the support frame is wrapped with a first anti-hitting body, and the surface of the first anti-hitting body deforms and generates corresponding restoring force when bearing pressure; one end of a connection rod is rotationally connected to the top of the support frame through a connection structure, the other end of the connection rod is a free end, and the free end can rotate around the connection structure in the horizontal plane; a part of the connection rod is wrapped with a second anti-hitting body, and the surface of the second anti-hitting body deforms and generates corresponding restoring force when bearing pressure. The first anti-hitting body can be used for conventional exercises like punching and kicking, and the connection rod fixed to the second anti-hitting body can rotate so that an interaction function can be achieved, people need to conduct blocking or avoiding actions during punching to avoid the rotary second anti-hitting body, people are not injured when hit by the second anti-hitting body, and the safety is ensured.

The invention relates to a method for manifesting metal surface hidden fingerprints through chemical sedimentation, and belongs to the technical field of fingerprints identification. The method takes copper sulfate solution as the replacement reagent, manifests hidden fingerprints on metals such as zinc, magnesium and general carbon steel, and particularly comprises the following steps: copper sulfate solution is prepared by taking copper sulfate and ultrapure water as raw materials, and the concentration of the solution is mainly depended on the nature of metal substrate material; the hidden fingerprint sample is submerged in the copper sulfate solution, or the solution is dropped on the sample material surface, and reaction is carried out for a period of time; the sample is dried by nitrogen after being taken out, the fingerprints can be detected clearly with the naked eye, and the manifested fingerprint image is gathered through a digital camera. According to the manifesting method, no expensive instrument or fluorescent reagent are need, and the manifesting method is simple to operate and fast to manifest fingerprints, is healthy and eco-friendly, low in cost, and ideal in sensitivity, veracity and repeatability, and has better application prospect in the field of fingerprint identification.

The invention discloses laser photoelectric fireworks and crackers. The laser photoelectric fireworks and crackers comprise a body and is characterized in that loudspeakers are arranged on the periphery of the body, a plurality of laser emission heads are evenly arranged at the top of the body, and laser emitters are arranged inside the laser emission heads; a volume regulating button, a distanceregulating button, a color regulating button, a sound imitation regulating button and a color system selecting module are arranged on the body. The laser photoelectric fireworks and crackers have theadvantages that various different fireworks forms are written into a program, the program is used to control the laser emitters to emit laser of different colors, different heights and different positons to form different patterns, and the forms and sounds of various fireworks are simulated; the simulated electronic fireworks and crackers can increase festive atmosphere and do not generate smoke and gunpowder smell, and pollution and burden to atmosphere and environments are avoided; in addition, personal injury caused by fire caused by the fireworks is avoided.

The invention belongs to the technical field of sports equipment, and relates to a simple badminton stadium, in particular to a portable badminton court shed for sports. The portable badminton court shed for sports comprises a frame and a cover. The frame comprises a plurality of long strip-shaped beams and columns which are mutually connected, and the cover is arranged above a badminton court in a covering mode. The beams and the columns are saccular, a cavity is formed in each beam, a cavity is formed in each column, the cavities are mutually communicated, each cavity is filled with pressure gas, and both the beams and the columns are made of flexible airtight cloth; the cover is made of airtight cloth, can effectively block wind, is fixedly connected with the beams and the columns, and covers the badminton court in an airtight mode, The portable badminton court shed for sports is low in manufacturing cost, affordable for common people, light and convenient to use, easy to carry, convenient to install, capable of being folded up for storage after being deflated, capable of saving much space, easy to store and high in safety, does not need to be lifted by workers to a high-altitude position for installation, and does not need to be operated by professionals.

The invention relates to an energy-saving unpowered lower opening type tyre vulcanizing segmented mold which comprises a vulcanizing upper mold, a vulcanizing lower mold and a segmented module. The segmented mold is characterized in that the vulcanizing upper mold comprises an upper tapered mold sleeve, the upper surface of the inner side of the upper tapered mold sleeve is fixedly provided with an upper steel ring and an upper tyre side plate, a guide block is arranged on the inner tapered surface of the upper tapered mold sleeve, the vulcanizing lower die comprises a lower segmented mold baseplate and a lower tyre side plate fixedly arranged on the lower segmented mold baseplate, the segmented module is connected to the lower segmented mold baseplate and radially moves through a radial sliding device arranged on the lower segmented mold baseplate, and an inclined guide groove which is matched with the guide block is also arranged on the outer side surface of the segmented module. The segmented mold provided by the invention can not only save energy sources and is convenient for operating, but also reduces the equipment cost and has high operation safety.

The invention belongs to the technical field of preparation technology and vulcanization mold for a V belt of a washing machine and discloses a green preparation technology and a special vulcanization mold for the V belt of the washing machine. The vulcanization mold is mainly and technically characterized by comprising an outer sealed rubber jacket, a bottom mold, inner mold units and a gland, wherein the bottom mold, the inner mold units and the gland form a cylindrical inner mold assembly and an isolation fabric layer is arranged between the inner mold assembly and the outer sealed rubber jacket. In vulcanization, due to the isolation fabric layer arranged between the inner mold assembly and the outer sealed rubber jacket, the defects such as environmental pollution, cooled water chemical pollution, personal injuries and low production efficiency caused by the adoption of a mold releasing agent are avoided, the skidding phenomenon of the V belt in early use is avoided, the quality of the V belt of the washing machine is improved and the service life of the outer sealed rubber jacket is prolonged greatly.

The invention relates to a climbing assisting safety device of a construction tower crane. The climbing assisting safety device comprises a climb ladder, two pulleys, a safety rope, a fastening rope, two safety catches and a balancing weight, wherein the climb ladder is vertically arranged at one side in a tower body of the construction tower crane; the two pulleys are respectively supported on a tower body frame at the upper part of the top of the climb ladder by a rotating shaft; the radial center planes of the two pulleys are coincided with each other and are vertical to a cross rod of the climb ladder; the safety rope is wound in grooves of the two pulleys, one end of the safety rope is connected with the balancing weight, and the other end of the safety rope is connected with the middle part of the fastening rope; two ends of the fastening rope are respectively provided with the safety catches; one of the two safety catches can be buckled with a safety belt tied on the waist of an operator of the tower crane, and the other safety catch is buckled with the cross rod of the climb ladder. After the safety rope of the climbing assisting safety device is tied on the operator of the tower crane, the operator of the tower crane can easily climb and freely move under the action of gravity of the balancing weight arranged at the other end of the safety rope; even if four limbs of the operator of the tower crane completely get away from the climb ladder, the body of the operator only falls off slowly, and any personal injury is absolutely not caused.

The embodiment of the invention discloses a cable manufacturing method. A PCB of a node unit is manufactured, and two ends of the PCB are provided with butt joint parts, and a node unit protector is formed on the periphery of the PCB and between the butt joint parts at two ends. Base material cable unit manufacturing comprises steps: a cable bundle comprising a signal line is manufactured, and butt joint cable cores are preserved at two ends of the cable bundle; each base material cable unit is connected with each node unit, and a cable body is formed, wherein the butt joint parts at two ends of the node unit are respectively in butt joint with the butt joint cable cores at two sides of the base material cable unit; and an outer sheath coating the cable body is formed outside the cable body. By using the cable manufactured by the method in the embodiment of the invention, the cable is able to adapt to construction scenes with harsh environment such as undermine and underground, and requirements on the cable by special environment can be met.

The invention discloses an injection mold for embedding of an automobile sealing strip insert. The injection mold comprises an upper mold plate (1), a lower mold plate (2), an ejection plate (3), a base plate (4) and a sealing strip (7). The ejection plate (3) is located on the base plate (4). The lower mold plate (2) is located between the upper mold plate (1) and the ejection plate (3). An upper mold plate (5) is arranged below the upper mold plate (1). A lower mold plate (6) is arranged above the lower mold plate (2). The lower mold plate (2) is provided with an oblique slide block (8) used for forming the rubber coating part of the front end face of the sealing strip (7), a slide block (22) used for forming the rubber coating part of the inner side face of the sealing strip (7) and a mobile slide block (36) positioning the outer side face of the front end of the sealing strip (7). The upper mold plate (1) is provided with an oblique guide column (33) slidably matched with the oblique slide block (8). By adoption of the injection mold for embedding of the automobile sealing strip insert, personal injury cannot be caused, so that the safety coefficient is high.

The invention discloses a calculating method of a window opener or door opener operation safety limiting value. Based on known actual operation data in a window opener or door opener operation process, a safety limiting value which is greater than or equal to the actual operation data is calculated. The actual operation data in a window opener or door opener stroke comprises initial data when a window opener or a door opener leaves a factory and an operation force value after usage. In the initial data, initial force value data is directly detected through a torque sensor; an initial current or a voltage or power data can be directly detected through a current sensor or a voltage sensor; and the power data can be acquired through calculation and is stored in a control module. By using the method, a difference value between the actual operation data and the safety limiting value keeps in a fixed range so that mechanical and unrecoverable deformation and a personal injury are not generated; and simultaneously, a condition that false triggering is generated because of an extraneous influence is avoided.

The invention discloses a flange with a hole and a safety valve pressure test system based on the flange with the hole. The flange with the hole comprises a flange plate. A duct concentric and coaxial with the flange plate is formed in the position of central axis of the flange plate. An external hole is formed in the side wall of the flange plate and communicates with the duct. By means of the beneficial effects that the flange is convenient to detach and install, the service life of the safety valve pressure test system is prolonged; a pressurization device communicates with a pipeline system in the safety valve pressure test system through the flange plate to conduct safety valve detection, and therefore the pressurization device can be repeatedly detached and installed, regulated overhaul and cleaning of the pressurization device in the safety valve pressure test system are achieved, the installation cost is further reduced, and the installation process is simplified. The gas tightness of the safety valve detection system cannot be influenced by installation and detachment of a pressurization system in the safety valve pressure test system based on the flange with the hole, and the detection result of the safety valve pressure test system is accurate.

The invention discloses a method for measuring ratio of stray light in a spectrometer. The method specifically comprises the following steps: a. a light source and a measured spectrometer are connected by a specific optical fiber and a transmissive optical fiber so that a specific spectrum and a transmission spectrum are obtained respectively; the light source is matched with a service wave band of the measured spectrometer, the specific optical fiber is opaque to the light with a specific wavelength, and the transmissive optical fiber is transparent to the light with the specific wavelength which is in the service wave band; and b. the specific spectrum and the transmission spectrum are compared to obtain the ratio of the stray light of the measured spectrometer at the specific wavelength. The invention also discloses a device for performing the method. The method and the device have the advantages of reasonable design, effective and fast measurement of the stray light ratio, no toxin and no pollution, a plurality of measurable wave bands, stability and convenience, and can be widely applied to detecting the performances of spectrometers.

The invention provides firecracker knitting and packaging equipment. The firecracker knitting and packaging equipment comprises a rack, a transmission mechanism arranged on the rack, a charge mechanism which is arranged at one end of the transmission mechanism, a knitting mechanism which is arranged above the transmission mechanism, a packaging mechanism which is arranged at the other end of the transmission mechanism and a discharge mechanism which is arranged at the output end of the packaging mechanism. The charge mechanism is used for loading to-be-knitted firecrackers, the knitting mechanism is used for knitting the firecrackers together, the packaging mechanism is used for pasting and laminating two surfaces of the knitted firecracker, and the discharge mechanism is used for discharging. The firecracker knitting and packaging equipment realizes automatic charging, knitting, packaging and discharging of firecrackers, is relatively small in knitting joint difference, is high in packaging efficiency, does not need to manually and directly touch the firecrackers, and does not cause personal injuries.

The invention provides a portable motor mobile device and relates to the machinery field, which specifically relates to a fast and portable mobile pumping-unit motor, wherein the belt of a jack device can be conveniently replaced. The portable motor mobile device comprises a support frame, a support seat, and a horizontal jack. The support seat is fixed on the support frame through a bolt and a screw nut. The horizontal jack comprises four moment arms hinged end to end, a Z-type swing rod, and a sleeve pipe. The end of the Z-type swing rod is provided with a screw rod. The sleeve pipe is sleeved on the end of the Z-type swing rod. The screw rod penetrates hinge points arranged on two corners of the four moment arms. One end of the sleeve pipe is fixed with one moment arm of one hinge point of the four moment arms. The screw rod is screwed with the screw nut. The screw nut is fixed on one moment arm of the other hinge point of the four moment arms. One person can easily replace a motor belt by using the portable motor mobile device. In addition, the portable motor mobile device is simple in structure, small in size, portable, and easy in production.

The invention discloses a laboratory isolation power supply insulation fault location system, which includes an isolation transformer and a test bench; the isolation transformer is sequentially connected in series with an insulation monitor and an external alarm, the external alarm is also connected with an alarm display, and the test bench is connected with a test In the control room, the test console is connected with the insulation monitor; the isolation transformer is also connected in series with the insulation fault tester and the insulation fault locator through the current transformer; the test bench includes several load circuits connected in parallel with the insulation fault tester, and the load circuit All are also equipped with switches and positioning transformers, and the positioning transformers on the load circuit are all connected to the insulation fault locator. The invention can quickly send out an alarm and locate a fault when a fault is found, provides a safe experiment platform for experimenters, protects personal safety and equipment safety, and has a certain improvement effect on teaching.