31results about How to "Easy to insert and fix" patented technology

The invention discloses a method for installing a profile steel cold saw blade. The method is characterized by including the steps that corresponding assembly positioning holes are formed in the saw blade and a fixing disc; the saw blade and the fixing disc are relatively vertically fixed through an auxiliary device; matched positioning pins are inserted into the assembly positioning holes in the saw blade and the fixing disc, and then the saw blade and the fixing disc are relatively positioned; connecting bolts between the saw blade and the fixing bolt are installed and connected, and then installation is finished. The method for installing the profile steel cold saw blade has the advantages that installation convenience and safety of the saw blade can be improved, and labor efficiency is improved; the adopted auxiliary device assists users in installing and connecting the saw blade and the fixing disc, so that the saw blade and the fixing disc can be more quickly, conveniently and safely installed and connected with less effort.

The invention discloses a device for improving the bearing performance of a steel arch of a dilative soil large-section tunnel. The device comprises an arched support. High-strength round spiral steel bars and rigid supporting bases are arranged at large arch feet at the bottom of the arched support, each large arch foot comprises an upper-layer steel plate and a lower-layer steel plate connected with the upper-layer steel plate through five high-strength round spiral steel bars in a plum pile mode, and the rigid supporting bases penetrate through the high-strength spiral steel bars; five supporting base insertion grooves are formed in each lower-layer steel plate, and the supporting base insertion grooves are used for fixing the supporting bases so as to guarantee the overall stability of the steel arch. The device can relieve the settlement deformation of surrounding rock at the initial stage of excavation of the dilative soil tunnel, improve the self-stabilization capacity of the tunnel effectively and lastingly, form a multifunctional surrounding rock reinforcement area and guarantee the safety of tunnel constructors and protect equipment.

The invention discloses a computer mainframe box convenient to install a mainboard for computer hardware development in the technical field of computers; the computer mainframe box comprises a mainframe box body, wherein a mainboard fixing mechanism is installed in the mainframe box body; the mainboard fixing mechanism comprises supporting legs, a fixing plate, a lower clamping block and an upper clamping block, the supporting legs are fixedly connected to the inner wall of the mainframe box, a hinge shaft is inserted into the supporting legs, the fixing plate is hinged to the surface of the hinge shaft, and the lower clamping block is fixedly connected to the surface of the fixing plate; and the surface of fixing plate is fixedly connected with mounting seat. The computer mainboard fixing device has the beneficial effects that the mainboard can be fixed without screws, the mainboard can be fixedly mounted quickly, and meanwhile, the situation that the screws are prone to loosening due to corrosion after being used for a long time is avoided; in addition, the device can be suitable for mainboards of different models and sizes in the installation process, and meanwhile wires can be clearly arranged after installation.

The invention discloses an integrated rainwater recycling-storage-dispatching system and method. The system comprises a filterer, a down-seep well, a water storage tank, an overflow water tank and a purifying device. A filtering frame body is arranged in the filterer, and comprises a rack body, a support fixing block and a first baffle. Water level detecting devices are arranged in both the water storage tank and the overflow water tank. A buffering device and a submerged pump are arranged at the bottom of the water storage tank. The construction method comprises the steps of S1, excavating a foundation pit, S2, conducting the construction of the water storage tank and the overflow water tank, S3, conducting the construction of the submerged pump and the buffering device, S4, establishing the down-seep well, S5, conducting the paving of a first down-seep pipe and a second down-seep pipe, S6, installing the filterer and the purifying device. The integrated rainwater recycling-storage-dispatching system and method have the advantages of being simple in structure, strong in practical application, and convenient to install. After the installation of the water storage tank, the other equipment are installed directly on the top surface of the water storage tank without any problem of elevation differences, therefore the trouble of pipe matching is saved, and the whole construction is made easier.

The invention provides an indoor rotary storage shelf capable of assembling and dismantling at will. The shelf comprises upright columns, inserting grooves and positioning pins; six longitudinal columns are arranged, each of left and right sides is provided with three longitudinal columns, and the longitudinal columns are welded to the upright columns to form frameworks in the shapes of a Chinesecharacter 'ri'; three transverse columns are arranged, the transverse columns are welded to the upright columns to form frameworks in the shapes of a Chinese character 'ri', the frameworks welded by the longitudinal columns are connected with the front sides of the frameworks welded by the transverse columns and the upright columns through hinges, and each of left and right sides is provided witha connected framework; bottom feet are of square cylindrical structures, two bottom feet are arranged, and the bottom feet are welded to both left and right ends of the bottom side faces of the bottomend transverse columns; long plates are welded to the front side faces of the transverse columns, and rectangular holes are formed in the front side faces backwards. The storage shelf can be placed on the ground to used as a grounded type shelf, through the arrangement of inserting holes and the bottom feet, the height and storage area of the shelf are increased to meet using demands, using manners can be changed freely according to the needs of users, the conversion is simple, the operation is convenient, the cost is low, and the shelf can be popularized and used in batches.

The invention belongs to the technical field of sewing thread structures and particularly relates to a PTFE (polytetrafluoroethylene) sewing thread and a preparation technique thereof. A PTFE thread is prepared first; a thread end marker, a plate clamping unit, a thread fixing groove, an intra-groove insert unit, an intra-groove fastening unit and a sliding plate unit are arranged on the PTFE thread; therefore, the PTFE sewing thread is utilized effectively, and finding after fixation of a thread end is not required. The preparation technique of the PTFE sewing thread is reasonable and effective; the thread end marker is fixedly mounted on the PTFE thread under high strength; the PTFE thread is convenient to remove for use and fixedly insert; the thread end marker is fixed stably on a tabletop; the tedious work of finding a thread end is omitted.

The invention relates to the field of electronic components. The invention discloses a shell assembling device of an electronic connector. The shell assembling device comprises a shell feeding assembly, a shell transferring assembly, a shell detecting assembly and a shell and insulating base riveting assembly. The shell feeding assembly is used for shell feeding. The shell transferring assembly isused for transferring a shell to the shell detecting assembly, the shell detecting assembly is used for detecting the shell, the shell is transferred to the shell and insulating base riveting assembly through the shell transferring assembly after detection, and the shell and insulating base riveting assembly is used for the riveting connection of the shell, an insulating base and an assembly partof a contact pin. The device has the advantages that the detection efficiency and the detection quality are high, and the riveting quality of the shell and the insulating base is high.

The invention relates to a split paper drawing roller bearing seat. The bearing seat comprises a bearing main seat (1) and a bearing sub-seat (2) which are connected through bolts. The bearing main seat (1) is welded on a mounting bottom plate, and a bearing (20) is mounted in the bearing sub-seat (2). Multiple bolt holes (12) are formed in the bearing main seat (1). Bolt through holes (22) matched with the bolt holes (12) in position and number are formed in the bearing sub-seat (2). Compared with the prior art, the split paper drawing roller bearing seat has the advantages of convenience indisassembly, stable structure and the like.