567 results about "Cross slot" patented technology

The invention relates to the technical field of filters, in particular to an internal shielding component of a power filter, which comprises a shell, a cover plate is mounted at the top of the shell through a cross recessed countersunk head screw, and a metal partition plate is arranged on one side of the inner wall of the shell; the wave-proof sleeve is welded on one side wall of the shell, and the material of the wave-proof sleeve is light nickel-plated copper fabric; when the power supply filter is used, the problem that crosstalk coupling is formed between interference signals can be prevented, the electromagnetic compatibility in the signal transmission process between systems is solved, the anti-wave sleeve is adopted for shielding power supply input of the power supply filter, interference of an input cable on other signals is greatly restrained, and the service life of the power supply filter is prolonged. The electromagnetic compatibility problem of the whole system caused by the fact that high-frequency noise is coupled to a power line is prevented, the shielding effectiveness is improved, the problem of filtering post-stage electromagnetic interference signals is greatly restrained, meanwhile, the heat dissipation area is increased, and the heat dissipation efficiency and effect are improved.

The invention provides a superstrong anti-theft device for commodity display, which comprises a bottom column, the top end of the bottom column is rotatably connected with a cross-shaped bottom shell, the top end of the cross-shaped bottom shell is provided with a cross-shaped groove, the cross-shaped groove is internally and fixedly provided with a cross-shaped bracket, and the end of the cross-shaped bracket is symmetrically and slidably provided with two groups of vertical clamping jaws and two groups of transverse clamping jaws. The outer side walls of the two sets of vertical clamping jaws and the outer side walls of the two sets of transverse clamping jaws are slidably connected with the inner wall of the cross-shaped bottom shell. And a locking assembly is mounted on one side of the end of each cross-shaped bracket. The vertical clamping jaw and the transverse clamping jaw which can be independently adjusted are arranged on the cross-shaped bracket, mobile phones of different models and sizes can be rapidly locked, high applicability is achieved, meanwhile, through cooperation of the cross-shaped bottom shell, a locking mechanism on the cross-shaped bracket can be rapidly locked, and it is guaranteed that after the mobile phones are clamped, the mobile phones can be rapidly locked. Compared with the prior art, the device has the advantages of being high in stability, high in hiding performance, not prone to being found or broken and high in safety.

The utility model relates to the technical field of electric locomotives, in particular to a mining explosion-proof lithium ion electric locomotive structure which comprises an electric locomotive body and a mounting box and is characterized in that the mounting box is mounted in the electric locomotive body, cross grooves are formed in the inner walls of the two sides of the mounting box, first buffer mechanisms are arranged in the cross grooves, and second buffer mechanisms are arranged in the cross grooves. A first buffering mechanism is arranged at the bottom of the mounting box, a second buffering mechanism is arranged at the bottom of the mounting box, a top cover is arranged at the top of the mounting box, a limiting mechanism is arranged at the bottom of the top cover, the first buffering mechanism comprises a cross-shaped rod, the cross-shaped rod is slidably mounted in a cross-shaped groove, and a fixing cylinder is fixedly connected to the side wall of the cross-shaped rod. Through the combined action of the first buffering mechanism, the second buffering mechanism and the limiting mechanism, when collision occurs, the storage battery is protected to a certain degree, the situation that the storage battery is damaged is avoided, and then the possibility that the storage battery explodes is reduced.

The utility model discloses a wheel type probe sealing mechanism which comprises a wheel shaft (5) connected with a wheel hub (1), the wheel shaft (5) is of a split type structure and comprises an upper half shaft (51) and a lower half shaft (52) which are matched with each other, the two sides of the upper half shaft (51) are respectively provided with a group of upper screw holes (51a), and the two sides of the lower half shaft (52) are respectively provided with a group of lower screw holes (52a); a cross recess screw (8) is connected in the corresponding upper screw hole (51a) and the lower screw hole (52a), the upper half shaft (51) is fixedly connected with the lower half shaft (52) through the cross recess screw (8), and a framework sealing ring (6) and an oil seal check ring (7) are arranged between the inner end of the wheel shaft (5) and the hub (1) after the upper half shaft (51) and the lower half shaft (52) are combined. The hollow shaft has the advantages that threading of the hollow shaft is facilitated, sealing performance is improved, dismounting and mounting are facilitated, and sealing and rotating are both considered.

The utility model relates to the field of flange plate machining, in particular to a clamping device for machining an automobile flange plate, which comprises a chassis, a cross recess A is arranged at the upper end of the chassis, a cross recess B is arranged inside the chassis, the cross recess A and the cross recess B are communicated with each other, and clamping components are arranged on the cross recess B and the cross recess A. The first air cylinder and the second air cylinder are started, the telescopic rods of the first air cylinder and the second air cylinder drive the first clamping block on the first sliding block and the second clamping block on the second sliding block to synchronously diffuse in the direction away from one end of the axis of the base plate, and then the loading disc is placed on the clamping assembly. The inner wall of the loading disc is clamped through the arc-shaped outer walls of a first clamping block and a second clamping block, and in the clamping process, a second sliding groove in a second sliding block is limited through a second limiting column, and a first sliding groove in a first sliding block is limited through a first limiting column; the problem that flange plates of different sizes are inconvenient to clamp is solved.

The invention relates to the technical field of steel structure assembly, in particular to a solar module steel structural part integrated assembly machining platform which comprises a workbench, a lifting rod is fixedly mounted at the upper end of the workbench, a mounting shell is welded to one side of the output end of the lifting rod, and a conveying cylinder is fixedly mounted at the lower end of the mounting shell; a magnetic attraction screwdriver is arranged at the upper end of the mounting shell, a first air cylinder is fixedly mounted at the lower end of the mounting shell, the output end of the first air cylinder is fixedly connected with a movable rod, the movable rod is slidably connected with the inner side wall of the mounting shell, and one end of the movable rod is fixedly connected with a positioning plate. The bevel edge block can be inserted into the cross-shaped groove to drive a screw to rotate together, finally, the cross-shaped groove is rotated to the position matched with a cross-shaped connector of the magnetic attraction screwdriver, meanwhile, through respective rotation of the rotating disc and the rotating wheel, the screw and the rotating shaft center can be rapidly replaced, the working efficiency is improved, and abrasion to the magnetic attraction screwdriver is reduced.

The utility model discloses a precast concrete component demoulding device, which belongs to the technical field of concrete forming and comprises a support frame, a cross recess is arranged in the support frame, four fixing plates are fixedly connected to the bottom end in the cross recess, and a first rotating shaft is rotatably arranged on the inner side surface of each fixing plate in a penetrating manner through a bearing; the device has the beneficial effects that the vibration motor and the rotary knob are arranged, the vibration motor is started to operate, the eccentric wheel can rotate, the eccentric wheel is attached to the inner side of the groove, then the convex block and the limiting spring are matched, the vibration plate can be continuously vibrated, and the vibration plate rapidly vibrates in a small amplitude, so that a formed concrete part can be separated from the vibration plate; and by rotating a knob, a second rotating shaft, a threaded rod and a first rotating shaft can be rotated, and four templates can be driven to be far away from each other through a plurality of bevel gears, so that the concrete part and the mold can be demolded.

The invention relates to the technical field of cutting equipment, and discloses cutting equipment for precise mechanical part manufacturing and a using method thereof.The cutting equipment comprises a working shell, the top of the working shell is fixedly connected with a square ring plate, a workpiece sleeve is placed on the outer wall of the top end of a special-shaped shell frame, a first electric telescopic rod is started, the first electric telescopic rod drives a square plate to descend, and the square plate is driven by the first electric telescopic rod to descend; the square plate drives a forward and reverse motor to descend, the forward and reverse motor drives a rotating shaft to descend, the rotating shaft drives a cross-shaped sleeve to descend, and when the cross-shaped sleeve moves into a cross-shaped groove in the inner wall of the special-shaped shell frame, the forward and reverse motor is started, the forward and reverse motor drives the rotating shaft to rotate, and the rotating shaft drives the cross-shaped sleeve to rotate; the cross sleeve drives the special-shaped shell frame to rotate, the special-shaped shell frame drives the workpiece sleeve to rotate, meanwhile, the second electric telescopic rod is started, the second electric telescopic rod drives the cutter to move upwards at a constant speed, the cutter makes contact with the side wall of the workpiece sleeve in the upward moving process, and therefore thread cutting work is conducted on the outer wall of the workpiece sleeve.

The invention relates to the technical field of cross recess milling, in particular to a universal connecting shaft cross recess milling device which comprises a case. A lifting platform and a base are mounted on the case; a hydraulic cylinder is rotationally mounted on the rotating base; a clamping block is fixedly mounted on the hydraulic cylinder; the case is provided with a tool apron; a positioning structure is arranged on the case and can drive the tool apron to be close to or away from the lifting table so as to drive the milling cutter to be close to the to-be-machined workpiece; a travelling crane structure is arranged on the case; the traveling structure can drive the cutter holder to reciprocate so as to drive the high-speed rotating milling cutter to travel according to a set track; a turnover structure is arranged on the machine box, and the turnover structure can drive the rotating base to rotate by 90 degrees and can drive the hydraulic cylinder to turn over by 180 degrees, so that the clamping blocks are driven to turn over synchronously, and a machined part is turned over; through the overturning structure, the offset distance between the intersection center of the longitudinal straight groove and the transverse straight groove and the central axis of the machined part can be reduced, so that the working efficiency of the universal connecting shaft is improved, and the machining efficiency can be effectively improved.

The invention provides a substrate integrated notch mirror image dielectric waveguide cross slot antenna, which belongs to the field of waveguides and antennae, and comprises a dielectric radiator, a metal column, and a first metal layer, a dielectric substrate and a second metal layer which are arranged in a laminated manner, the dielectric radiator is embedded in the dielectric substrate, the lower surface of the dielectric radiator is tightly attached to the second metal layer, and the upper surface of the dielectric radiator is not covered; a plurality of metal columns penetrate through the dielectric substrate and are arranged on the periphery of the dielectric radiator in an array mode, a plurality of cross-shaped gaps are formed in the dielectric radiator, an electromagnetic signal is input from an input port in the side face of the dielectric substrate and is radiated outwards from the cross-shaped gaps, the notch mirror image structure is used in antenna design, the radiation efficiency of the antenna is improved, and the antenna radiation efficiency is improved. The cross-shaped gap can better control the radiation mode of electromagnetic waves, and more concentrated radiation with high directivity is formed, so that the performance of the antenna is improved.

The invention belongs to the field of microwave wireless power transmission, and discloses a transparent linear circular polarization converter applied to microwave wireless energy transmission, which is composed of five layers of structures: a first layer is a cross patch with an inclined angle of 45 degrees, a cross recess is formed in the middle of the cross patch, and the whole body is composed of a cell with the external size of 1 * 1mm and the internal size of 0.95 * 0.95 mm; the wire width of all the copper wires is 0.05 mm; the second layer is a square substrate pet, the dielectric constant is 3.5, and the dielectric loss angle tangent is 0.03; the third layer is formed by splicing four isosceles right triangles, and the length of the right-angle side of each triangle is equal to half of the unit period; and the fourth layer and the fifth layer are completely the same as the second layer and the first layer. According to the invention, linear polarized waves can be effectively converted into circularly polarized waves in a microwave frequency band, high light transmittance can be maintained, and the device is suitable for being applied to intelligent windows, photovoltaic-microwave hybrid energy systems and other scenes.

The utility model discloses a detachable protective barrier for a steel trestle for a tunnel. The detachable protective barrier comprises a bottom rod, a base is arranged at the bottom of the bottom rod, positioning bolts are arranged on the periphery of the bottom of the base, an inserting groove is formed in the top end of the bottom rod, the bottom of the inserting groove is communicated with a cross-shaped groove, and a positioning hole is formed in the side wall of the top end of the bottom rod. Through combined use of the bottom rod, the assembling rod, the inserting rod and the cross-shaped inserting block, follow-up assembling treatment of the whole protective barrier body can be conveniently achieved, using is more convenient and faster, practicability is higher, follow-up moving adjustment and the like of the assembled protective barrier body are also facilitated, flexibility is higher, and practicability is higher. When the assembling rod drives the inserting rod fixedly installed at the bottom of the assembling rod to be connected with the inserting groove formed in the top end of the bottom rod in a clamped mode, the cross-shaped inserting block can be input into the inner side of the cross-shaped groove, then clamping connection between the bottom rod and the assembling rod is achieved, convenience and rapidness are achieved, and higher flexibility is achieved.

The utility model discloses a contourgraph for detecting the processing precision of a shaft hole of a transmission shaft, and particularly relates to the field of contourgraphs, the contourgraph comprises a support frame, the top of the support frame is fixedly connected with a fixed rotating mechanism for detecting the transmission shaft, the fixed rotating mechanism comprises an outer shell, one side of the outer shell is fixedly connected with a motor I, and the other side of the outer shell is fixedly connected with a motor II. The first motor is connected with a rotating disc through an output shaft, an electric push rod is fixedly connected into the rotating disc, a cross-shaped rack is fixedly connected to the top end of the electric push rod, and a semicircular gear and a clamping plate are connected to the outer side of the cross-shaped rack in an engaged mode. According to the utility model, the electric push rod drives the cross-shaped rack to translate outwards to drive the semicircular gear and the clamping plate to rotate in the cross-shaped groove to fix the transmission shaft, and then the motor I drives the turntable to rotate in the outer shell to drive the transmission shaft to rotate, so that the inner wall of the rotating annular object to be detected can be converted into a translated plane; later measurement is facilitated, the measurement precision is improved, and the usability of the device is improved.

The application relates to the technical field of shaped steel column, in particular to a shaped steel column structure capable of shock isolation, which comprises a column body assembly, a shock isolation assembly and a connecting assembly; the column body assembly comprises a cross plate and four groups of connecting plates connected to the cross plate, the top of the cross plate is provided with a cross groove, the bottom of the cross plate is provided with a cross mounting groove, the connecting assembly capable of being arranged in the cross groove and the cross mounting groove is arranged in the cross groove, the shock isolation assembly is arranged at the bottom of the cross plate, the shock isolation assembly comprises a protection box and a mounting plate, X-direction sliding buffer pieces and Y-direction sliding buffer pieces are arranged in the protection box; the X-direction sliding buffer pieces and the Y-direction sliding buffer pieces are matched in the application and can move within a certain range, the influence of external vibration on the shaped steel column as a whole is reduced, the influence of passive stress of the building system is reduced, and the adjacent column body assemblies can be stably spliced.

The utility model provides an easy-to-install lifting ring screw, which comprises a screw main body and a lifting ring main body, the top of the screw main body is provided with a connector, the periphery of the connector is provided with an external thread structure, the top end of the connector is provided with a line-shaped or cross-shaped groove, the lifting ring main body comprises a circular ring and a connecting cap, and the circular ring is fixed at the top end of the connecting cap. An inner cavity in threaded connection with the connector is formed in the bottom end of the connecting cap, and an inner thread structure matched with the outer thread structure is arranged in the inner cavity. According to the lifting ring screw, the screw body and the lifting ring body are designed to be of a detachable structure, during installation, the screw body is firstly screwed into a designated position through a screwdriver, then the lifting ring body is fixedly connected with the screw body through the thread structure, and therefore installation of the lifting ring screw is completed, and the lifting ring screw has the advantage of being easy to install.

The utility model discloses maintenance equipment for a fire safety cabinet, which belongs to the technical field of fire protection maintenance and comprises a mounting pipe, a cross recess is arranged on one side of the mounting pipe, convex rings are symmetrically and fixedly mounted on one side, close to the cross recess, of the surface of the mounting pipe, and rotary clamping grooves are symmetrically arranged on one side, close to the convex rings, of a rubber pad on the surface of the mounting pipe. According to the maintenance equipment of the fire safety cabinet, by arranging a spring, a mounting frame, a double-end nut and a rotating ring, the mounting frame is pulled to enable the double-end nut to be far away from a mounting pipe, the spring is compressed and deformed between the mounting frame and the interior of the mounting pipe, the mounting frame is loosened after the double-end nut is rotated, and the mounting frame is jacked up under the springback effect of the spring; the double-end nut is clamped into one end of the mounting pipe, meanwhile, the rotating ring is rotated to enable the arc-shaped clamping strips to stretch out of the rotating clamping grooves to be clamped into the corresponding fixing clamping grooves, the mounting frame is clamped and fixed, and it is guaranteed that the mounting frame and the double-end nut are clamped on the surface of the mounting pipe and cannot shake at will.

The utility model provides a municipal pipeline desilting device, which relates to the field of municipal engineering technology. The municipal pipeline desilting device comprises a mounting tube, a large gear is provided inside the mounting tube, a driving assembly is provided on one side of the large gear, a plurality of small gears are meshed and connected to the outer side of the large gear, a transmission rod is fixedly connected to the inner side of the small gear, and both ends of the transmission rod are rotatably connected to the mounting tube. In the municipal pipeline desilting device, the output end of the forward and reverse motor drives the rotating rod to rotate forward, the rotating rod drives the large gear to rotate, the large gear is meshed and connected with a plurality of small gears, the small gear drives two transmission gears to rotate through the transmission rod, the transmission gear is meshed with the rack, the rack drives the cross rod to slide inside the cross groove, and the roller is driven to move in the direction away from the mounting tube through the cross rod. This structure can adjust the position of the roller synchronously without the need for individual operation, thereby improving the practicality of the device.

The utility model relates to the technical field of flange nut machining, in particular to a machining device for hexagonal flange nut assembly production, which comprises a base, a U-shaped frame fixedly mounted at the upper end of the base, cross-shaped grooves formed in the side walls of the two sides of the U-shaped frame, and a hydraulic oil cylinder fixedly mounted at the upper end of the U-shaped frame. An electric telescopic rod is installed at the output end of the hydraulic oil cylinder, a fixing seat is fixedly installed at the lower end of the electric telescopic rod, sliding grooves are symmetrically formed in the fixing seat, side rods are fixedly installed on the side walls of the two sides of the fixing seat, a placing frame is fixedly installed at the upper end of the base, and a circular groove and an inner groove are formed in the upper end of the placing frame; the sliding frames are evenly and slidably installed in the inner wall of the inner groove at equal intervals, the wedge-shaped blocks are fixedly installed at the opposite ends of the sliding frames, the second springs are fixedly installed on the sliding frames, and through the mode that the wedge-shaped blocks are fixed towards the middle, the hexagonal flange nut can be always kept in the center position when placed and is not prone to deviation; and the tapping accuracy and effect are enhanced.

The utility model provides a sample separation device, which belongs to the technical field of agricultural product detection, and solves the problem that in the use of the existing sample separation device, when it is necessary to separate the juice of the crop of the same type after separating the juice in the agricultural product, the sample separation device usually needs to be cleaned before use, and the time interval is long, which affects the work efficiency. The utility model comprises: the fixing frame is fixedly connected to the outer side of the base; the pressing component is fixedly installed on the upper end surface of the fixing frame; the pressing plate is fixedly connected to the lower end of the pressing component; the ball bearings are provided, and the multiple ball bearings are rotatably connected to the inner side of the base; the turntable is rotatably connected to the upper end surface of the base; the annular groove is provided on the lower end surface of the turntable; the cross grooves are provided, and the multiple cross grooves are provided on the inner side of the turntable; through the arrangement of the utility model, the conversion of the pressing cylinder is realized, the pressing interval is reduced, and the work efficiency is improved.

The invention provides a cable laying large-inflection-point intelligent pulley block which comprises a mounting block, cross grooves are formed in the left side and the right side of the mounting block, a pulley assembly is arranged at the bottom of the mounting block, and the pulley assembly comprises an upper flange plate, a lower flange plate, sub-pulleys and through bolts. The upper flange plate is movably connected to the bottom of the mounting block through a bearing, the lower flange plate is located at the bottom of the upper flange plate, and the six sub-pulleys are located on the inner side of the upper flange plate and the inner side of the lower flange plate. Therefore, the joint of the cable and the traction rope is effectively prevented from being clamped on the inner side of the sub-pulley, and meanwhile, the upper flange plate can drive the pulley assembly to rotate integrally, so that when the unequal-diameter part of the cable is dragged to pass through the adjusting assembly, the cable can pass through a large corner smoothly without obstacles, resistance-free traction is realized, and more than 50% of manpower is saved; and smooth traction construction is guaranteed.

The utility model belongs to aluminium ingot technical field, specifically disclose a aluminium ingot structure convenient to extraction, including base and aluminium ingot body, the top of base is connected with mounting panel of sliding, be provided with buffer mechanism between base and mounting panel, in the utility model, if the staff needs to stack aluminium ingot body, can insert the plug -in block below an aluminium ingot body into the inside of cross groove above mounting panel, subsequently the plug -in block below the subsequent aluminium ingot body is inserted into the inside of cross groove that aluminium ingot body below it opened, if the staff needs to extract the most top aluminium ingot body, the staff can extract the most top aluminium ingot body through the grab groove, in addition, when the staff drives small forklift to carry the aluminium ingot of stacking, through the downshift of mounting panel, can avoid the damage problem caused by the greater pressure of the fork to the top of mounting panel.

The utility model provides a cross shaft bolt connector. The cross shaft bolt connector comprises a main body mechanism and a locking mechanism, the main body mechanism comprises a connecting shaft, and a cross groove is integrally formed in one side of the connecting shaft; the locking mechanism comprises a locking sleeve and steel balls, one side of the connecting shaft is sleeved with the locking sleeve, the locking sleeve is in threaded connection with the connecting shaft, four mounting grooves are formed in the connecting shaft at equal intervals, the mounting grooves communicate with the cross-shaped groove, and the steel balls are distributed on one sides of the interiors of the mounting grooves at equal intervals; a locking plate is slidably mounted on one side of the interior of the mounting groove. The locking sleeve is arranged to extrude the steel balls, so that the steel balls drive the locking sleeve to lock and fix the cross shaft bolt inserted into the cross groove, the cross shaft bolt and the connecting shaft can be conveniently and rapidly connected and fixed, the cross shaft bolt can be conveniently disassembled, the cross shaft bolt can be fixed without components such as bolts, and the labor intensity of workers is reduced. And when the cross shaft bolt is locally broken, the broken part can be conveniently taken out from the connecting shaft.

The utility model relates to the field of stop valves, in particular to a flange type high-flow stop valve which comprises a high-flow stop valve body, a main body for bearing medium circulation, a circulation block and a torsion spring arranged in the high-flow stop valve body and used for assisting medium circulation. The flange type large-flow stop valve is provided with the valve clack, the threaded rod, the butt-joint block, the cross groove, the anti-theft ring and the cross block, when the flange type large-flow stop valve is used, the anti-theft ring connected with the hand wheel can be directly arranged on the butt-joint block at the top of the threaded rod in a sleeving mode, the cross block is matched with the cross groove, and therefore the threaded rod can be twisted through the hand wheel, and the anti-theft effect is achieved. According to the flange type large-flow stop valve, the valve clack is driven to move in the large-flow stop valve body, so that the size of a medium flowing out of the valve body is controlled, the hand wheel can be directly taken away when the valve is not used and closed, external personnel cannot twist the threaded rod only through the butt joint block, and therefore external operation safety of the flange type large-flow stop valve is guaranteed.

The utility model belongs to the field of splicing structures, particularly relates to a splicing structure of a steel bar truss plate and an aluminum mold, and aims to solve the problems that a supporting point of the existing aluminum mold is relatively fixed, the aluminum mold is difficult to adjust according to a position needing to be supported, a supporting rod needs to be supported by a hand independently during adjustment, then a plug pin is inserted into a pin hole, and the adjustment is not convenient enough. According to the scheme, the aluminum formwork comprises a steel bar truss plate and an aluminum formwork body, the aluminum formwork body is located below the steel bar truss plate for supporting, a sleeve is arranged at the bottom of the steel bar truss plate, a supporting column is slidably connected into the sleeve, a clamping frame is arranged between the aluminum formwork body and the supporting column, and a cross groove is formed in the bottom of the clamping frame; according to the formwork splicing structure, the whole splicing structure is compact in design, all parts are tightly matched, the formwork is easy and fast to disassemble and assemble, flexible adjustment can be conducted according to different construction requirements, and adaptability and practicability of the formwork splicing structure are enhanced.

The utility model discloses a cross-shaped self-tapping screw with an anti-skidding tooth structure, which comprises a screw cap, a screw body is arranged on the bottom wall of the screw cap, the screw body and the screw cap are integrally formed, anti-skidding tooth threads are arranged on the screw body, a cross-shaped groove is arranged on the top wall of the screw cap, a locking mechanism is arranged on the screw cap, and the anti-skidding tooth threads are arranged in the cross-shaped groove. The locking mechanism comprises a locking gasket, the locking gasket is arranged on the screw body in a sleeving mode through a formed through hole, a plurality of pointed cones are fixedly welded to the side wall, away from the nut, of the locking gasket, a fixing ring is arranged on the side, away from the nut, of the locking gasket, and the fixing ring is fixedly welded to the screw body. According to the self-tapping screw, the contact friction force between the locking gasket arranged on the self-tapping screw and a connecting piece can be improved through the multiple pointed cones, the locking gasket cannot rotate, then the nut cannot rotate reversely, and the problem that the self-tapping screw is prone to reversely rotating out of a workpiece due to shaking generated by the outside world, and consequently looseness is caused is solved.

The application provides a microwave co-time dual-frequency miniaturized radiator. The application adopts two transistors to construct negative resistance circuits to compensate resonator energy loss of a microwave co-time dual-frequency oscillator, and then uses a cross-slot gap to couple the output signal of an SIW resonator to a miniaturized radiator of a metal patch. The application comprises a high-frequency active negative resistance circuit, a high-frequency input DC blocking capacitor C1, a low-frequency active negative resistance circuit, a low-frequency input DC blocking capacitor C2, a high-frequency input matching circuit, a low-frequency input matching circuit and an SIW dual-mode dual-frequency radiation resonator. The application uses a dual-mode resonator to achieve the function of co-time dual-frequency oscillation signal radiation output through gap coupling of a metal patch, and the obtained oscillation signal has the advantages of high output power, high isolation and low phase noise.

The application discloses a bending forming device and a method thereof, the device comprising: a base, a back net positioning and clamping mechanism, at least two transverse support steel wire clamping mechanisms and a transverse support steel wire extension section bending mechanism; the method is suitable for the bending forming device, and a stepped height design is adopted to make the back net present an actual assembly inclined posture, so that precise alignment of the bending station is guaranteed. The back net is positioned through flexible compression at multiple points, and the arc-shaped groove cooperates with the parallelogram link and the inclined surface support to prevent scratch and stabilize the position. The steel wire is rigidly limited through the cross groove and the locking push column, so that the movement and swing during bending are eliminated. The bending mechanism controls the angle through motor gear transmission and mechanical limiting, and the arc-shaped bending block and the guide block avoid stress damage of the steel wire. Various bending structures can be formed flexibly by adjusting parameters, different assembly requirements are adapted, and the precision and adaptability are far higher than those of the traditional mode.

This application relates to an odd-even mixed-layer winding structure, a stator assembly, and a motor device. The stator assembly has 2p poles, and the stator core has Z stator slots, where Z = 12p. Each pair of stator slots forms a group. Within the same group, the stator slot on the left side has slot layers 1, 2, ..., m sequentially, and the stator slot on the right side has slot layers 1, 2, ..., (m+1) sequentially. Each winding branch includes several hairpin coils. The hairpin coils have m / 2+1 cross-layer configurations: crossing slot layers 1 and 2, slot layers 3 and 4, ..., slot layers (m-1) and m, and slot layers (m+1) and (m+1) respectively. This application can effectively avoid generating large stator-side magnetomotive force harmonics during motor device operation, thereby reducing the proportion of back EMF harmonics and preventing the performance of the motor device from being affected.

The utility model discloses a calcining powder block breaking device and processing equipment, the calcining powder block breaking device is arranged above a conveying line body used for conveying saggars, and the calcining powder block breaking device comprises a driving mechanism; the slotting tool fixing plate is connected with the driving mechanism and is driven by the driving mechanism to do lifting motion; the cross-shaped slotting tool is fixedly mounted on the slotting tool fixing plate, and a tool bit of the cross-shaped slotting tool is downwards opposite to the saggar flowing through the conveying line body; the first air vibration device is installed on the slotting tool fixing plate, the first air vibration device and the cross slotting tool ascend and descend synchronously, and the slotting tool fixing plate forms a vibration transmission path from the first air vibration device to the cross slotting tool. According to the calcined powder block crushing device, through integration of the cross slotting tool and the first air vibration device, efficient and uniform crushing of calcined block materials is achieved, the problem that the materials adhere to the tool and the inner wall of a sagger is effectively solved, and therefore production continuity and stability are guaranteed, and the overall efficiency of the powder post-treatment procedure is improved.

The utility model relates to the technical field of electromagnetic valve wiring equipment, and discloses a wiring structure of an explosion-proof electromagnetic valve, which comprises an electromagnetic valve shell, a conductive tube is fixedly connected to one side of the outside of the electromagnetic valve shell, a protective shell is fixedly connected to the outside of the conductive tube, a plurality of wiring holes are formed in the outside of the protective shell, and the wiring holes are communicated with the electromagnetic valve shell. A plurality of fixing assemblies are arranged at the top of the protective shell, a plurality of conductive blocks are fixedly connected to the top of the conductive tube, wire inserting grooves are formed in the far sides of the conductive blocks, a plurality of shells are fixedly connected to the interior of the protective shell, and rotating blocks are rotationally connected to the interiors of the shells; and a cross groove is formed in the top of the rotating block, a threaded block is fixedly connected to the bottom of the rotating block, and an elastic assembly is arranged in the shell. According to the device, in the using process of the device, pressure is applied to the spring, so that the spring applies pressure to the extrusion ball through the special-shaped block.