32results about How to "Avoid a series of problems" patented technology

The invention belongs to the field of auxiliary devices of shavers, and particularly relates to a gripping device for an aluminum top cover of a shaver. In order to solve the problems that an existingvacuum sucking disc is inconvenient in dismounting and is inconvenient in limiting block height regulation, the invention discloses the following scheme: the gripping device comprises a gripping structure, wherein a telescopic block is arranged on the gripping structure, the bottom side of the telescopic block is equipped with a vacuum sucking disc; a slide fixing slot is formed in one side of the telescopic block; a limiting block is movably mounted in the slide fixing slot; a hanging rod is fixedly mounted at the top side of the vacuum sucking disc; a hanging slot is formed in the bottom side of the telescopic block; and the top end of the hanging rod extends into the hanging slot. According to the gripping device disclosed by the invention, the hanging rod on the vacuum sucking disc isinserted into the hanging slot for fixing the vacuum sucking disc, and a drive rod is pushed to block two blocking rods into corresponding two blocking slots, so that the position of the limiting block is conveniently regulated, and a bolt structure is not used, and therefore, a series of problems caused by the bolt structure are avoided; and meanwhile, the whole gripping structure is more stablein use, and meets needs of people.

The invention discloses an output frequency control method for a brushless doubly-fed generator without a position sensor. The output frequency control method does not rely on the position sensor, does not need to know parameters of a brushless doubly-fed generator, utilizes an acquired voltage of a power winding of the brushless doubly-fed generator to achieve identification of rotation speed, avoids a series of problems caused by the position sensor, and can effectively control output frequency of the brushless doubly-fed generator. When the brushless doubly-fed generator and an outer power grid need to be used in a grid-connected manner, the parallel operation process can be completed successfully without the position sensor. Since a brushless doubly-fed generation system needs to acquire the voltage of the power winding of the brushless doubly-fed generator to form a voltage closed loop so as to achieve effectively control on voltage amplitude output by the brushless doubly-fed generator, the output frequency control method can effectively reduce cost of the position sensor and a matched sampling circuit, and does not incur any additional cost on the basis.

The invention discloses a method for preparing porous planting solidified soil by using silt and construction waste, which comprises the steps of pretreating the sludge and then turning it into soil, and using it as slope protection soil, and using the construction waste as aggregate after pretreatment, and combining the two to make porous planting solidified soil build. The method of the present invention can not only utilize the silt as a resource, avoid a series of problems caused by dredging silt, bottom mud and industrial sludge, but also reduce the processing cost of construction waste through the resource utilization of construction waste, which is beneficial to the environment protection, and has engineering application prospects.

The invention relates to an optical transmitting network node construction based on adjustable wavelength convertors and wavelength routers. The foot terminals of the wavelength routers linked with adjacent nodes are connected with the local foot modules and adjustable wavelength convertors. The local top modules and adjustable wavelength convertors are connected with the top terminals of the wavelength routers. The output terminals of local foot modules and input terminals of local top modules are connected with the local electrical network. The input terminals of router control modules are connected with the local electrical network, and the output terminals of router control modules are connected with the local top router module and the adjustable wavelength convertors respectively. The elimination of optical switch matrix at nodes reduces the exchanging time of nodes, the exchanging efficiency and the transmitting function are improved therefore.

The invention discloses an environment-friendly water-based metal cutting fluid. The cutting fluid consists of the following components in part by weight: 10 to 12 parts of triethanolamine, 3 to 4 parts of glycerol, 5 to 7 parts of polyethylene glycol, 3 to 5 parts of nanometer silicon dioxide, 1.5 to 2.5 parts of isopropanol, 5 to 7 parts of sodium molybdate, 2 to 3 parts of sodium benzoate, 3 to 5 parts of monoethanolamine benzoate, 5 to 7 parts of ethylene diamine tetraacetic acid disodium, 7 to 8 parts of water-soluble borate, 1.5 to 2 parts of sodium silicate, 1.5 to 2.5 parts of methyl triazole and 70 to 80 parts of water.

The invention provides a cableless gravity sampler, comprising a recovery unit and a discarding unit, wherein the recovery unit comprises a hook connected with a floating body, and an inner pipe of the sampler; the hook is connected with the bottom of the floating body and the top of the inner pipe of the sampler; the discarding unit comprises an outer pipe of the sampler, a balancing weight and a trigger unlocking mechanism; the trigger unlocking mechanism is in sleeve connection with the outer wall of the outer pipe of the sampler under the balancing weight; the outer pipe of the sampler sleeves the inner pipe of the sampler, and the inner pipe of the sampler can slide along the axial direction in the outer pipe of the sampler; at least two locking through holes are evenly formed along the circumferential direction of the middle section of the wall of the outer pipe of the sampler; the outer wall of the inner pipe of the sampler is provided with a locking groove or diameter expansion locking holes; locking beads are arranged in the locking through holes and the locking groove; bead exit grooves are formed in the middle part of the inner wall of an unlocking sleeve; the bead exit grooves are positioned under the locking beads, and the distance between the upper end of the unlocking sleeve and the lower edge of the balancing weight is greater than those between the bead exit grooves and the locking beads. The cableless gravity sampler is higher in reliability and safety, and lower in cost.

The invention belongs to the field of auxiliary devices of shavers, and particularly relates to a gripping device for an aluminum top cover of a shaver. In order to solve the problems that an existingvacuum sucking disc is inconvenient in dismounting and is inconvenient in limiting block height regulation, the invention discloses the following scheme: the gripping device comprises a gripping structure, wherein a telescopic block is arranged on the gripping structure, the bottom side of the telescopic block is equipped with a vacuum sucking disc; a slide fixing slot is formed in one side of the telescopic block; a limiting block is movably mounted in the slide fixing slot; a hanging rod is fixedly mounted at the top side of the vacuum sucking disc; a hanging slot is formed in the bottom side of the telescopic block; and the top end of the hanging rod extends into the hanging slot. According to the gripping device disclosed by the invention, the hanging rod on the vacuum sucking disc isinserted into the hanging slot for fixing the vacuum sucking disc, and a drive rod is pushed to block two blocking rods into corresponding two blocking slots, so that the position of the limiting block is conveniently regulated, and a bolt structure is not used, and therefore, a series of problems caused by the bolt structure are avoided; and meanwhile, the whole gripping structure is more stablein use, and meets needs of people.