127results about How to "Fasten tightly" patented technology

The connecting bolts 5 are inserted through the connecting cylinders 21 to hold a plurality of battery holders 20 in the stacked configuration and form a battery block 2. The battery holder 20 connecting cylinders 21 are disposed at a plurality of locations on the perimeter of the battery block 2, and are disposed in straight-lines to form rows of partial-stack connecting cylinders 4 on battery holders 20 stacked in two levels or more, but not on the entire stack of battery holders 20. Connecting bolts 5 are inserted through each row of partial-stack connecting cylinders 4 to hold the connecting cylinders 21 that make up each row of partial-stack connecting cylinders 4 in a stacked configuration, and retain the battery holders 20 in a stacked configuration as a battery block 2.

The present invention discloses a continuous straw crushing system, which sequentially comprises a material feeding system, a pre-powder system, an impurity removing system, a fine powder system, and a material storage system along a material operation direction, wherein the impurity removing system is connected with the pre-powder system and the fine powder system, the material feeding system comprises a chain plate conveyor, a first-stage leveling grille, a second-stage leveling grille and a material turning roller, the pre-powder system is provided with a leveling device arranged at the foremost end, a first-stage coarse powder device and a second-stage coarse powder device, the cutter shaft of the leveling device is provided with a vibration detector, an impurity removing grille is arranged above the rear of the leveling device, the impurity removing system comprises a crushed stone removing device and an iron remover positioned on the rear portion, the fine power system is provided with two crushing bins, the material inlet position is provided with a quantification roller, and a row of material separation rollers are arranged on the lower portion of the quantification roller. With the continuous straw crushing system of the present invention, the continuous and efficient crushing operation can be performed on straws, the problems of high impurity content in straws and large material feeding operation strength are solved, the crushing efficiency is high, the operation is safe and stable, and the large-batch and continuous production requirement can be met.

The invention discloses a spliceable precision building template system which is provided with two panels and reinforced ribs for connecting the two panels, wherein connecting heads (9) are formed on the splicing sides spliced with adjacent templates; seen from the cross section of the template, each connecting head (9) comprises a chuck (1) protruding towards the adjacent template, a clamping groove (2) and a connecting mechanism (4); the clamping groove (2) is inwards concaved relative to the protruding direction of the chuck (1); the connecting heads (9) of the adjacent templates are combined together by using the connecting mechanism (4); and the chuck (1) is suitably embedded into the clamping groove (2); and outer surfaces of the panels at two sides of the adjacent templates are positioned on the same plane at the same side. The building template with the structure can be freely spliced; after splicing, a joint is tight and favorable integrity is achieved; and after grouting, the probability of slurry leakage is low.

The invention discloses an electronic device shell, a manufacturing method of the electronic device shell and an electronic device. The method comprises the following steps: applying an adhering layer to one side of a metal diaphragm; punching the metal diaphragm with the adhering layer into a metal sheet with a preset size; stamping the metal sheet into a preset shape; and according to the preset shape, injecting a plastic layer on the adhering layer side of the metal sheet stamped into the preset shape, so as to form the electronic device shell, wherein the adhering layer and the plastic player are placed on the non-appearance face side of the metal sheet which is of the preset shape. Since the structural thickness of the metal diaphragm is relatively low, the production cost of the electronic device shell can be reduced; in addition, the plastic layer formed in an injection molding way on the adhering layer side of the metal sheet can be used at complicated fastening positions so that the electronic device shell and the electronic device can be fastened together tightly and hardly separated, thus improving the user experience.

An apparatus and method for attaching an undercover to the underside of a car body floor panel having a plurality of studs, comprises tubular fasteners that are inserted into respective mounting holes of the undercover with diametral clearance and that are engaged with the studs. Each fastener comprises clips coupled to one another and having flanges that exert a predetermined clamping force on the undercover while permitting displacement of the undercover along the floor panel due to thermal deformation.

Disclosed is a cable rack joint structure, which is designed to bite into an inner peripheral surface of a bolt insertion hole so as to establish sufficient electrical conduction between cable racks. In the cable rack joint structure, a bolt insertion hole 9 is formed in a circular shape, which allows only a distal end of a polygonal neck portion 6 of a joint bolt 5 to be inserted thereinto. The bolt insertion hole 9 has a plurality of recesses 9A formed in an inner peripheral surface thereof and adapted to lock respectively at least two of three or more corner edges 6A of the neck portion 6, in such a manner that the inner peripheral surface of the bolt insertion hole 9 is bitten into at respective positions where the corner edges 6A of the neck portion 6 are locked by corresponding ones of the recesses 9A. The cable rack joint structure of the present invention can reliably prevent corotation which otherwise occurs between the joint bolt and locking nut, such as a hot-dip galvanized bolt and nut, during an operation of tightly fastening them together, and allow a shape of the bolt insertion hole to be intuitively recognized as that of a standard bolt insertion hole so as to minimize the time and effort needed on activities for familiarizing operations with the bolt insertion hole so they know it is a proper bolt insertion hole.

The invention relates to a grinding element, which comprises a substantially planar fastening frame, and where two or more grinding segments made of grinding ceramic material are fastened to the outer surface of the frame by means of bonding agent. The fastening frame preferably comprises at least one fastening hole, and a fastening bolt is supplied through the hole to fasten the grinding element to the frame of the grinder stone. The invention further relates to a grinder stone, where a grinding surface is formed by arranging a required number of grinding elements according to the invention on the outer circumference of the stone's frame.

A burglarproof tool fitting holder device is formed with a side latch to tightly fasten a tool fitting for the effects of hanging show and protection against burglars. The device includes a tool fitting holder body and a burglarproof fixture unit. When the tool fitting holder body combines with the tool fitting in one, the fixing pedestal combines with the fixing cover plate of fixture unit in one via the two sides of the tool fitting to fasten the tool fitting. Further, ribs added in the inner fringes of the fixing cover plate and fixing pedestal is exactly wedged into the groove on the side of tool fitting to secure the tool fitting between the fixing cover plate and the fixing pedestal for effective protection against burglars.

The invention relates to a method for buttoning a retainer ring for a locomotive wheel band, which improves the processing technology, materials and the structure which affect retainer ring radial elasticity to intensify elastic parameters of the retainer ring on the diameter direction and to increase the buttoning compact degree between the retainer ring and a wheel core. The method comprises: sleeving the wheel band which is heated and slightly expanded on the wheel core and then buttoning the retainer ring in a groove inside the wheel band. The retainer ring is a ring-shaped body with an opening part and the retainer ring adopts the heat setting process to manufacture before the retainer ring is buttoned in the wheel band groove. The procedures of the heat setting manufacturing process comprises: firstly, fixedly installing the retainer ring on a heat setting clamp, then, adopting medium temperature fire with the temperature range of 420DEG C-500DEG C to temper and heat to enable the retainer ring to shape on the clamp, then, continuingly tempering and heating the retainer ring in the temperature range for 3-5 hours, and lastly taking the retainer ring after tempering from the heat setting clamp.

The invention provides an air guide door movement mechanism, an air conditioner hanging machine and an air guide door control method, and relates to the technical field of air conditioners. The air conditioner hanging machine comprises an air conditioner hanging machine body and the air guide door movement mechanism; the air guide door movement mechanism comprises an inner air guide assembly, an outer air guide assembly and an outer air guide door; the outer air guide assembly is connected with the outer air guide door, is used for driving the outer air guide door to rotate to a first positionin a rotating process, and is provided with a first clamping part; the inner air guide assembly is provided with a second clamping part; and the inner air guide assembly is used for rotating relativeto the air conditioner hanging machine body when the outer air guide door rotates to the first position, so that the second clamping part abuts against the first clamping part and drives the outer air guide assembly to continue to rotate to allow the outer air guide door to continue to rotate to a second position and close an air guide mouth. Compared with the prior art, the air guide door movement mechanism allows the outer air guide door to be tightly buckled on the air guide mouth through the rotation of the inner air guide assembly and the abutting between the inner air guide assembly andthe outer air guide assembly.

The invention discloses a plastic bottle cover which can change liquid output flow. The plastic bottle cover comprises a cover seat, wherein the cover seat is provided with a cover body which can be fastened with the cover seat, and the cover seat is also internally provided with a connecting opening which is connected with a bottle opening; the technical scheme of the plastic bottle cap is mainly characterized in that the cover seat is provided with a convex column, the convex column is internally provided with a convex column hollow cavity which is communicated with the connecting opening, the side wall of the convex column is provided with an inner liquid outlet which is communicated with the convex column hollow cavity, the convex column is covered with an inner cover which can rotate around the convex column, and the side wall of the inner cover is provided with an outer liquid outlet which can be overlapped or staggered with the inner liquid outlet; the outer liquid outlet comprises a big outer liquid outlet and a small outer liquid outlet of which the areas are different, the outer liquid outlet is provided with inclined lip-shaped pieces protruding the side surface of the inner cover, the overlap area between the outer liquid outlet and the inner liquid outlet can be changed along with the rotation of the inner cover, and the liquid outlet flow can be controlled by rotating the inner cover. According to the plastic bottle cover disclosed by the invention, the cover body can be separated from the cover seat in 0-180 degrees, and the liquid can be conveniently poured.

The invention discloses a device of washing and disinfection for a gynecological appliance. The device comprises a cover plate, a pored net basket and a device main body, wherein a washing groove withan upward opening is formed inside the device main body; the pored net basket is embedded in the washing groove in a slide manner; a fixation box is fixed on the upper end of the outer surface of thedevice main body; a rotation rod is fixed on one end of the cover plate; the rotation rod passes through the fixation box in a rotatable manner; and three small gears which are mutually meshed are longitudinally disposed inside the fixation box, and the small gear located on the upper end fixedly sleeves the outer surface of the rotation rod. Through design of a big gear and a rack, after openingof the cover plate through rotation, the rotation rod and the small gears fixed on end parts of the rotation rod can be driven to start synchronous rotation and thus the pored net basket can be driven to move upwards and extend out from a liquid level of an ultrasonic washing liquid, so that the medical appliance can be fetched and placed easily, and the pored net basket does not need to be heldmanually for water control; and when the cover plate is closed, the pored net basket is automatically embedded into the washing groove, so that operations are simple and convenient, and efficiency ofwashing and disinfection of the medical appliance by equipment can be increased.

The invention provides an iron core block of a motor, a stator core, a manufacturing method thereof, a stator, the motor and a household appliance. The iron core block comprises a yoke part and a tooth part; along the circumferential direction of the iron core block, a first end of the yoke part is arranged as a first spliced end, an accommodating slot is formed on the first spliced end, bucklingparts are respectively arranged on two side walls of the accommodating slot, the buckling parts extend along an axial direction parallel to the yoke part, and the buckling parts shift toward one sideaway from the accommodating slot under an external acting force; along the circumferential direction of the iron core block, a second end of the yoke part is arranged as a second spliced end, the second spliced end is equipped with a joint bulge, buckling slots are respectively formed on the two sides of the joint bulge, and the buckling slots stretch along the axial direction parallel to the yokepart; the joint bulge of another iron core block can be accommodated in the accommodating slot; the buckling parts are buckled with the buckling slots of another iron core block and are used for limiting the relative displacement of two adjacent iron core blocks along the circumferential direction; the iron core block is capable of reducing the fitting gap between two adjacent iron core blocks, so that the performance stability of the motor can be ensured.