32results about How to "Easy fastening" patented technology

A spare-tire fastening structure is for fastening a spare-tire 1 to a support member (bracket 2) in a spare-tire receiving section. The fastening structure comprises a nut member 5 and a bolt member 9. The nut member 5 comprises a plastic housing 10 including a flange 13 and a hollow stem 14 extending from the flange 13; and a plastic nut body 11 including two screw segments 23 forming one screw as a whole, and spring portions 22 each extending from each of the screw segments 23 to a base portion 21 to bias or push each of the screw segments 23 up from the base portion 21; wherein an outer surface of the housing stem 14 is formed with engagement pawls 17 which are associated with the flange 13 to sandwich or grip the support member between the pawls 17 and the flange 13; and the nut member 5 is mounted on the support member by inserting the housing stem 14 from an end thereof opposite to the flange 13 into a mounting hole of the support member and pressing the housing stem 14 thereinto until the flange 13 is brought into surface-contact with the support member; wherein, under a condition where a mounting hole of a spare-tire wheel is aligned with the nut member 5, the bolt member 9 is pressed through the spare-tire wheel 6 into the nut member 5 in the same direction as of a pressing operation for mounting the nut member 5, so that the bolt member 9 is engaged with the nut member 5 so as to fasten the spare-tire to the support member.

A clamp device for a long component is engaged to a conductive stud attached to a conductive support, in order to conductively mount the long component to the support. The clamp device comprises a clamp made of an electrically conductive hard plastic material having a base for holding the long component, a cover made of a hard plastic material connected to the clamp so as to enclose the long component on the base, and a stud fastener made of a hard plastic material for mounting both the clamp and the cover on the stud and electrically connecting the long member held inside the clamp to the stud. Conductive plates on the clamp contact the stud in the stud fastener.

The invention discloses a full-closed type automotive safety binding device which is used for various automobiles, trucks and trailers and can conveniently and rapidly bind and fix cargoes. The full-closed type automotive safety binding device comprises a binding device body, a long binding band, a short binding band and a ratchet mechanism. The binding device body mainly comprises a rope fastening frame, a left shell and a right shell, wherein the rope fastening frame is of a U-shaped groove structure, and the left shell and the right shell are located on the two sides of the rope fastening frame respectively and matched with each other to form a rope fastening frame containing cavity. The position, corresponding to the ratchet mechanism, of the rope fastening frame containing cavity is further provided with a button window, and a sealing cover is arranged on the button window. Meanwhile, a ratchet in the ratchet mechanism is driven by a driving shaft which penetrates through the rope fastening frame containing cavity, and a rotating handle for driving the rotating shaft is arranged outside the rope fastening frame containing cavity. By means of the full-closed type automotive safety binding device, and the technical problem of safely and stably using the automotive safety binding device is solved. Workers can not be easily hurt accidentally when using the automotive safety binding device, and meanwhile surfaces of metal parts in the structure can not be easily oxidized and can not easily rust.

The invention provides an open type transformer three-dimensional roll-core. The three-dimensional roll-core is characterized in that the roll-core is composed of three identical iron core frames made of silicon steel sheets, and each iron core frame is formed by a hexagonal frame defined by an upper half frame and a lower half frame; the upper half frame is provided with a left and a right upper half frame bevel edge; the lower half frame is provided with a left and a right lower half frame bevel edge; the silicon steel sheets of two bevel edges at the same sides of the upper half frame and the lower half frame are arranged in a staggered manner; the silicon steel sheets of two bevel edges at the same sides are mutually inserted together to form the bevel edges of the iron core frames; the silicon steel sheets of each layer are connected at bending positions of the silicon steel sheets. The open type transformer three-dimensional roll-core has the positive effects that an iron core joint position of the roll-core is completely out of a coil, joint position fastening treatment can be very conveniently carried out after the iron core joint position is sheathed in the coil, and the roll-core is very conducive to transformer noise reduction and loss reduction. If a fault happens, the upper half frame of the iron core frame can be conveniently dismantled and the coil can be pulled out for maintenance.

A fastening bolt and a digital door lock with the fastening bolt is disclosed. More particularly, a fastening bolt is provided that can be easily installed on all kinds of doors with a door knob such as interior and exterior doors and chassis doors, without damaging existing doors with a mechanical door lock, and a door lock with the fastening bolt.

The invention provides a flange plate rapid-connecting device and an operation method thereof and belongs to the technical field of flange plate sealing and connecting of oil feeding and draining valves of transformers. The flange plate rapid-connecting device comprises a transformer oil feeding and draining pipe, an oil pipe self-sealing connector, a transformer oil feeding and draining valve flange, an oil pipe connector flange, a sealing gasket, an adjusting steel pipe, a chuck and buckles. The adjusting steel pipe is arranged coaxially outside the oil pipe self-sealing connector. A plurality of assistant member connecting holes and a plurality of threaded holes are formed in the adjusting steel pipe. The adjusting steel pipe is provided with an external threaded face. The chuck is provided with an internal threaded face which is matched and connected with the external threaded face, and a vertical face perpendicular to the internal threaded face. The multiple buckles are connected to the end of the vertical face through hinges. The flange plate rapid connecting device is safe, reliable, suitable for oil feeding and draining operations of oil outlets with all sizes of the transformers, rapid, convenient and capable of greatly shortening sealing and connecting time of flange plates of the transformers, relieving the work intensity of maintainers and improving the working efficiency, and the maintenance frequency is greatly reduced at the same time.

The invention discloses an end cap for an electric machine, comprises a sheet metal bracket and a plastic sealed BMC shell, wherein the plastic sealed BMC shell comprises a bottom of the shell and a bearing chamber, wherein the bearing chamber is directly injection molded of BMC material, a plurality of through holes are arranged on the sheet metal bracket, the sheet metal bracket is injection molded between the bottom of the shell and the bearing chamber, and the plastic sealing material is connected front and rear through the through holes. The invention combines the advantages of the sheetmetal end cover and the plastic end cover, wherein the fastening part of the end cover is a sheet metal support, so as to improve the assembly stability and reliability; the bearing chamber is moldedby BMC injection molding; the concentric degree of the bearing chamber of the end cover is ensured by the precision of the mold during the plastic sealing, so as to reduce the vibration and improve the noise when the rotor rotates; The end cap and the stator shell are fastened by riveting to avoid cracking caused by pressing the end cap directly into the stator, and the rivet fastening operation is simple, the production efficiency is high, and the labor cost is saved.

The invention discloses a nut box. A round through hole (2) is formed in the middle of a vertical plate (1); end plates (3) are symmetrically arranged at the two ends of the vertical plate (1); the end plates (3) are vertically connected with the vertical plate (1); a supporting plate (4) is arranged at the bottom of the vertical plate (1); the supporting plate (4) and the end plates (3) are positioned on the same side of the vertical plate (1); and the supporting plate (4) is vertically connected with the vertical plate (1). According to the nut box, square nuts can be positioned, so that the operation of fastening between bolts and the square nuts is easier, convenient and quick, the labor intensity of workers is reduced and the assembly efficiency is effectively improved; and the nut box is suitable for various occasions in which the bolts are larger and longer and need to be fixed by hexagonal nuts for the convenience of bolt assembling.

The invention discloses equipment for charged fastening of a support bottle from the ground. The equipment comprises a lower-section insulating rod, an upper-section insulating rod fixedly connected at the upper end of the lower-section insulating rod and a fastening bolt sleeve fixedly connected at the upper end of the upper-section insulating rod through a threaded connecting seat; the fasteningbolt sleeve comprises a fastening bolt sleeve body fixedly connected onto the threaded connecting seat and a fastening hole formed in the fastening bolt sleeve body to fasten a support bottle bolt; and the fastening hole is an inverted-cone-shaped orthohexagonal variable-diameter hole formed from the outer end to the inside of the fastening bolt sleeve body. According to the equipment, the support bottle bolt can be matched with a certain hole diameter of the orthohexagonal variable-diameter hole of the fastening hole regardless of the size of the support bottle bolt, so that high-and-low-voltage line support bottles can be fastened, and the fastening bolt sleeve is not required to be replaced frequently; and existing fastening line support bottles can only perform fastening through rod climbing after power outage, the problems about charged fastening of the support bottles are solved, operations can be performed regardless of the sizes of product bolts when the support bottles on lines are loosened, power outage times are greatly reduced, and the manual rod climbing rate is decreased.

The invention belongs to the technical field of submersible electric pumps and particularly relates to a screw centrifugal pump. The screw centrifugal pump comprises a motor shaft, a screw impeller, a screw blade, a pump cover, a pump case, a first screw, a first bolt and a second bolt. The screw impeller is fixed to the tail end of the motor shaft through the first screw, the screw blade is arranged at the lower end of the screw impeller, the pump cover is installed on the portion, on the upper portion of the screw impeller, of the motor shaft, the pump case is arranged on the lower portion of the pump cover, the left side of the pump cover and the left side of the pump case are fixed through the first bolt, the right side of the pump cover and the right side of the pump case are fixed through the second bolt, the screw impeller and the screw blade are covered with the pump case, a water inlet is formed in the lower side of the pump case, and a water outlet is formed in the right rear upper side of the pump case. The screw centrifugal pump is free of blockage at the inlet and the outlet and low in mechanical failure rate.

The invention discloses an automatic detection device of a wrapping tape laminated belt. The automatic detection device comprises a support, wherein frame blocks are arranged at two sides of the top of the support, a tape placement disc is arranged at one side of the top of each frame block, a tape receiving disc is arranged at the other side of the top of each frame block, a first turning rolleris arranged at one side of each of the tape placement disc and the tape receiving disc, a rubber ring is arranged between the tape receiving disc and the frame rack, a rotation rod is arranged at an outer side of the tape placement disc, and a press plate is arranged at the top of the rotation rod. By arranging a lifting rack, a wrapping tape is favorably fastened, so that the wrapping tape is convenient to check, the tape placement disc and the tape receiving tape are needed to be assembled during detection of the wrapping tape, a fastening screw rod is loosen, the press is rotated by takinga bearing as an axis, the rotation rod is placed at the top o the rubber ring, the press plate is fastened at the tops of the frame blocks by the fastening screw rod, so that the tape placement disc is stabilized, and a frame of the tape receiving disc is fixed by matching of a convex rod at the bottom of the tape receiving disc and the bottoms of the frame block.

The invention provides a knife switch wire changing device for a pressure controller. The knife switch wire changing device comprises a base, a dustproof mechanism, a fixing mechanism, an energizing mechanism, a clamping mechanism and a safety piece, wherein the dustproof mechanism is clamped and connected with the base; the fixing mechanism is fixedly connected with the base; the energizing mechanism is rotatably connected with the fixing mechanism; the clamping mechanism comprises a bolt, and the bolt is slidably connected with the base; and the safety piece is clamped and connected with thebolt. According to the knife switch wire changing device for the pressure controller provided by the invention, the safety piece is in the shape of a two-end wrench, the two ends of the safety pieceare clamped and connected with the bolt on the fixed base and a bolt on an outgoing line base separately, thus the safety piece is conveniently installed inside a knife switch, and the fixation of a fuse is facilitated by fastening the bolt, thereby preventing the fuse from sliding off; and the knife switch wire changing device for the pressure controller has the advantages of convenient operationand flexible use, and can replace the safety piece quickly.

The invention discloses a locating plate with a screw rod and a sleeve; the locating plate comprises a fixed plate and a tensioning plate, a plurality of through holes are arranged on the locating plate, one end of the sleeve is fixed on the through holes of the locating plate, the inner diameter of the sleeve is more than the outer diameter of the through hole, a boring hole of which the inner diameter is less than the inner diameter of the sleeve is arranged at the other end of the sleeve, a first space is arranged between the sleeve and the locating plate for containing the screw rod, one end of the screw rod is clamped in the first space, the other end of the screw rod is stretched out of the through hole; by adopting the structural characteristics, the screw rod is fixed in the first space and can not drop out, so as to be convenient for tightening the screw rod in the production, the other end of the screw rod is stretched out of the through hole for installation, fastening and dismounting conveniently; the device not only reduces the labor intensity of workers greatly, but also the disassembly and assembly are convenient, the labor efficiency is improved, and the application of the locating plate in the building field is very wide.

The invention discloses an arrangement and installation method of foundation bolts of a marine diesel engine on a test bed. The method comprises the steps that 1, a plurality of general type test run iron benches are installed on the test bed; 2, the prearranged positions of the foundation bolts of the marine diesel engine are arranged according to the shafting arrangement and the model of the marine diesel engine; 3, the marine diesel engine is located on the test run iron benches for correction and leveling; 4, a pneumatic tool is installed and used for fastening the foundation bolts of the marine diesel engine; and 5, a torque wench is used for torque checking in a spot-checking manner; when all the checked fastening torques meet the requirement, arrangement and installation of the foundation bolts of the marine diesel engine on the test bed are completed. According to the arrangement and installation method, the problem that the foundation bolts of the marine diesel engine are complex and difficult to arrange is solved; the labor production efficiency is improved, and the labor intensity of operation is lowered; the safety of workers is improved, and meanwhile connection reliability of the foundation bolts of the marine diesel engine is ensured; and the method can be applicable to marine low-speed diesel engines of various models, and the requirement for arrangement and installation of the foundation bolts of the platform test bed of the diesel engine is met.

An air cleaner (AC) of an engine, wherein the skirt wall (11a) of an upper cover body (11) near a suction port (50) is extended to the lower side of the suction port (50) to prevent rain drips flowing down the outer surface of a cleaner cover body (10) from being sucked into the air cleaner through the suction port (50). A seal packing (68) and a cleaner element unit (Ue) are stackingly fitted tothe outer periphery of a suction passage (17) in the cleaner cover body (10), and a locking projection (75) tightly engaged with the suction passage (17) is formed on the seal packing (68) to preventthe seal packing (68) from falling down when the cleaner element unit (Ue) is replaced. Furthermore, the air cleaner (AC) is disposed on one side of the engine (E) parallel with each other, the lowerpart of the cleaner cover body (10) is integrally joined to and supported on the engine (E) together with a carburetor (4) with a pair of connection bolts (22, 23). The reinforcement vertical wall part (37) of the cleaner cover body (10) facing the engine (E) through a clearance is integrally joined to and supported on the engine (E) with the other one connection bolt (24). Thus, the supporting rigidity of the air cleaner for supporting the air cleaner on the engine (E) can be increased.

The invention provides a connecting device for an electric flange plate and an operation method thereof, and belongs to the technical field of transformer oil filling and draining valve flange plate sealing connection. The connecting device for the electric flange plate comprises a transformer oil filling and draining pipe, an oil pipe self-sealed connector, a transformer oil filling and draining valve flange, an oil pipe connector flange, a sealing gasket, a chuck, clamping buckles and electric pushing rods. The sealing gasket is arranged between the oil pipe connector flange and the transformer oil filling and draining valve flange. The electric pushing rods are arranged outside the oil pipe self-sealed connector which is sleeved with the chuck. One end of the chuck is connected with the electric pushing rods, and the other end of the chuck is connected with the multiple clamping buckles through hinges. The connecting device for the electric flange plate is safe and reliable and can be applied to oil filling and draining operation of all transformer oil outlet sizes, the time for sealing and connecting of transformer flange plates is greatly shortened, operation is fast and convenient, the working intensity of maintenance personnel is relieved, the working efficiency is improved, and meanwhile the maintenance frequency is greatly decreased.

The invention provides a ecological restoration method for a side slope. The ecological restoration method specifically comprises the following steps: (1) after cleaning the side slope, leveling the top end of the side slope; (2) building a drainage groove in the upper end of the side slope, and building a gentle zone between the drainage groove and the side slope; (3) laying meshes on the side slope, and spray-seeding composite organic matter; and (4) digging planting holes in the side slope, and planting climbing plants in an embedded manner. The ecological restoration method for the side slope is characterized in that customized climbing plants are planted in an embedded mode after composite organic matter is spray-seeded, and the method has the advantages of preventing landslide and water and soil loss and guaranteeing that the slope body is evergreen in winter.

The fastening auxiliary mechanism comprises a horizontally-arranged mounting plate, a connecting shaft is movably connected to the position, close to the right side of the top, of the front side of the mounting plate, an L-shaped plate is fixedly connected to the front end of the connecting shaft, and a reset spring is fixedly connected to the position, close to the bottom of the left side, of the short side of an L-shaped structure of the L-shaped plate. According to the polishing machine, the reset spring, the supporting block, the supporting plate, a fixing spring, a connecting shaft, an L-shaped plate, a connecting rod, a circular plate and a V-shaped plate are used in cooperation, so that the polishing machine forms a fastening auxiliary mechanism for rapidly loosening a switch, the effect of an automatic reset function is achieved, the supporting plate is conveniently returned to the horizontal position, and the polishing efficiency is improved. And the auxiliary mechanism can quickly return the formed switch, so that the next work can be carried out orderly.

The present invention relates to a box holder capable of cleanly and safely packaging products and goods without damaging a box when the products and the goods are packaged in the box, the holder comprising: two horizontal bars spaced from each other at a predetermined gap; a plurality of first bent parts formed to be bent and extended from the two horizontal bars; a plurality of first support parts for connecting the plurality of first bent parts; a plurality of coupling pieces coupled to the two horizontal bars; a plurality of second bent parts formed to be bent and extended from the plurality of coupling pieces; and a plurality of second support parts for connecting the plurality of second bent parts.

The invention provides a flange plate rapid-connecting device and an operation method thereof and belongs to the technical field of flange plate sealing and connecting of oil feeding and draining valves of transformers. The flange plate rapid-connecting device comprises a transformer oil feeding and draining pipe, an oil pipe self-sealing connector, a transformer oil feeding and draining valve flange, an oil pipe connector flange, a sealing gasket, an adjusting steel pipe, a chuck and buckles. The adjusting steel pipe is arranged coaxially outside the oil pipe self-sealing connector. A plurality of assistant member connecting holes and a plurality of threaded holes are formed in the adjusting steel pipe. The adjusting steel pipe is provided with an external threaded face. The chuck is provided with an internal threaded face which is matched and connected with the external threaded face, and a vertical face perpendicular to the internal threaded face. The multiple buckles are connected to the end of the vertical face through hinges. The flange plate rapid connecting device is safe, reliable, suitable for oil feeding and draining operations of oil outlets with all sizes of the transformers, rapid, convenient and capable of greatly shortening sealing and connecting time of flange plates of the transformers, relieving the work intensity of maintainers and improving the working efficiency, and the maintenance frequency is greatly reduced at the same time.