39results about How to "No twisting" patented technology

The invention relates to a flexion type acceleration switch. In the switch, a tilted support beam, a mass block and a height adjustable contact component in a group are arranged in an insulation encapsulated shell of the switch, wherein the tilted support beam is of a double layer structure; two ends of the support beam are fixed at two sides of the shell; the double layer tilted support beam supports the mass block in a certain angle alpha to ensure that the mass block is balanced and suspended in an inner cavity of the insulation encapsulated shell; a contact is arranged on the bottom of the mass block; the height adjustable contact is arranged on the insulation encapsulated shell right under the mass block, and remains a certain distance from the mass block; when the double-layered tilted support beam is bent under the action of exterior threshold inertia force, the mass block moves along the exterior acceleration velocity to ensure that elastic contact is formed between the contact on the mass block and the height adjustable contact, and extrudes the contact to form stable contact by means of flexion elastic force. The acceleration switch is characterized by simple structure, adjustable threshold value and strong interference resistance.

The invention relates to a headset with a head band suspended on the head, in particular to a headset with earflaps capable of rotating and translating relative to the head band. The headset with the earflaps capable of rotating and translating relative to the head band comprises the head band and a pair of the earflaps arranged on the left and right ends of the head band, wherein audio circuit boards and loudspeakers are arranged inside the earflaps; the head band is an opened hoop with elasticity; the left end and the right end of the head band are respectively inserted into the pair of the earflaps; rotating and translating structures which enable the earflaps to do rotating and translating motions relative to the head band are arranged between the end parts of the earflaps and the earflaps; and the rotating and translating structures are positioned inside the earflaps. The headset with the earflaps capable of rotating and translating relative to the head band, provided by the invention has the advantages of concise appearance structure, good generality and comfortableness and long service life and solves the problems that the traditional headset can not combine the generality and the comfortableness and movably connected parts are easy to seize to affect the service life of the headset as adjustment structures for adjusting the position of the earflaps are positioned outside the earflaps.

The invention discloses a support scaffold for an ancient building gallery bridge and a construction method of the support scaffold. The support scaffold comprises support base frames, support connecting rods and a reinforcing plate, the reinforcing plate is arranged between the support connecting rods, and the support connecting rods are arranged between the support base frames; and each support base comprises a base, first arch ribs, second arch ribs, third arch ribs, a beam frame, a support transverse frame and a support rod, the first arch ribs are arranged between the base and the beam frame, the second arch ribs are arranged between the base and the support transverse frame, the third arch ribs are arranged between the beam frame and the support rod, and the support rod penetrates through the support transverse frame. The construction method comprises the following steps of (a) clearing a workyard; (b) constructing a frame; (c) assembling the support base frames; (d) reinforcing; and (e) monitoring. According to the support scaffold for the ancient building gallery bridge and the construction method of the support scaffold, connecting of the support scaffold is flexible, disassembling and assembling are convenient, repairing is convenient, the anti-load capacity is high, the steadiness and the endurance are achieved, the construction method is simple, the construction period is short, the construction quality is easy to control, transportation of materials is convenient, and the construction cost is low.

The invention discloses a seat recycling system for ejection tests. The seat recycling system for the ejection test comprises a recycling parachute (1), a hanging device (2), a life-saving box cover (27) in a seat bucket, a parachute sleeve and a packaging rope (26), wherein the hanging device (2) is installed on a seat, the parachute sleeve is sewn on packaging cloth on the inner side of the life-saving box cover and used for packaging the recycling parachute (1), the packaging rope (26) seals the packaging cloth of the life-saving box cover to realize the packaging of the recycling parachute(1) and connected to the bottom plate of the seat bucket, and the two ends of the parachute rope of the recycling parachute (1) extend from the rears of the left and right sides of the life-saving box cover (27) and are connected with the top end of the hanging device (2). According to the invention, the recycling parachute is installed in the space on the inner side of the seat chair and under the human body, so that the eccentricity of the seat cannot be influenced, and the test state and the actual use state can be highly fitted. The system can be used by matching with various situations of ejection tests, especially high-speed ejection tests, the state of the seat after ejection tests is basically complete, and the recovery success rate of the seat is high.

The invention discloses an inner ring stop mechanism of a wheel hub bearing. The inner ring stop mechanism includes a shaft head with a limiting stepped surface and a wheel hub with a limiting steppedsurface. The wheel hub sleeves the shaft head through a wheel hub inner bearing and a wheel hub outer bearing arranged in an inner cavity of the wheel hub, and the wheel hub inner bearing is abuttedagainst the limiting stepped surface of the shaft head for limiting through a bearing race. The wheel hub outer bearing is locked and fixed by a locking nut, the bearing race and the shaft head are ininterference fit connection, an inner ring of the wheel hub inner bearing and an inner ring of the wheel hub outer bearing are in clearance fit connection with the shaft head, the inner ring of the wheel hub inner bearing and the bearing race limit the circumferential rotation of the wheel hub inner bearing relative to the shaft head through a circumferential limiting structure between the binding surfaces of the inner ring of the wheel hub inner bearing and the bearing race, and the inner ring of the wheel hub outer bearing and the locking nut limit the circumferential rotation of the wheelhub outer bearing relative to the shaft head through a circumferential limiting structure between the binding surfaces of the inner ring of the wheel hub outer bearing and the locking nut. The problems that the wheel hub bearings are difficulty in assembling and maintaining, the inner rings of the hub bearings are in clearance fit, clearance of the maintenance-free wheel hub bearings are unable tobe adjusted, and the requirement of the machining precision of parts is high are solved.

The invention provides a slasher creel. According to the technical scheme, the slasher creel comprises a base and a plurality of pairs of rack bodies which are mounted on the base and are used for supporting warp beams. The pairs of rack bodies are arranged in the same plane in parallel, and the heights of the pairs of rack bodies are the same. According to the slasher creel, the rack bodies which are used for supporting the warp beams are arranged in the same plane in parallel, the heights of the rack bodies are the same, the distances between the warp beams can be effectively shortened compared with a traditional beam creel of an up-down layer structure in the first map, and warps can be effectively prevented from being twisted together. Through verification of experiments, under the condition that the wraps are wet (is not dried after dewatering), the condition of warp twisting does not happen, the drying step which has to be executed after warp dyeing is omitted, and production efficiency is improved. The slasher creel has the advantages that the distances of the warp beams can be effectively shortened, the warps can not be twisted together without being dried, the drying step is omitted, and the production efficiency is improved.

The invention discloses an assembled rotational conductive module and belongs to the technical field of modular products. The assembled rotational conductive module comprises a structure module, a first PCB, a second PCB and a hinge assembly, wherein a buckle is clamped into a buckle hole in an installation condition; the first PCB and the second PCB sleeve a guide post separately; a first conductive needle is propped against a first conductive channel; a second conductive needle is propped against a second conductive channel; the first PCB is clamped on the surface of the structure module; the second PCB is clamped into a clamping groove; and a wire is connected with an interface of the second PCB. When the structure module of the assembled rotational conductive module and the hinge assembly rotate relatively, the conductive needles can be always propped against the corresponding conductive channels, thereby achieving conductive transmission at an arbitrary angle. The conductive needles and the corresponding conductive channels are connected in a sliding manner, thereby overcoming the problems that an internal wire of a rotating shaft is wound and is easily broken in the prior art. The hinge assembly can rotate back and forth in a hinge plane, and furthermore, the structure module can freely rotate around the guide post, so that the assembled rotational conductive module is great in degree of freedom, and stable conduction can be achieved while multi-angle structure connection is achieved.

The invention discloses a yarn reversing device suitable for inner drawn bobbins. The device comprises a mounting support, two groups of inner supports, a main shaft and a bearing seat, wherein the mounting support provides mounting hole sites for components in the device; the inner supports clamp the bobbins in various shapes from the inner sides of the bobbins so as to ensure that the bobbins do not slide relatively in a rotating process of reverse winding; the two groups of inner supports are arranged on the main shaft which serves as a rotating shaft of the whole device; and the main shaft is installed and fixed on the bearing seat, so that friction produced in the rotating process of the main shaft is reduced, and the main shaft is connected with the mounting support together. By virtue of the device, the twisting phenomenon produced in the yarn reversing process of the inner drawn bobbins can be avoided, yarns can be uniformly guided away the bobbins without curling, and the quality of the yarns in the yarn reversing process is ensured.

The invention discloses a rotary electric winding device for textiles. The winding device comprises a base, a supporting rod, a rotating motor, a roller supporting and rotating mechanism, winding roller mechanisms and a roller supporting and rotating spindle. By improving and providing the rotary electric winding device for textiles, the winding work can be automatically performed; and the winding speed is regulated by the rotating motor, so that the labor time of a worker is saved, and the economic benefits of textile enterprises are increased. When the rotary electric winding device is used, the rotating motor rotates to drive the roller supporting and rotating spindle to rotate by virtue of a chain, the roller supporting and rotating spindle drives the winding roller mechanisms at two sides to rotate, so that the normal winding work is realized; and the roller supporting and rotating mechanism can drive the winding roller mechanisms to realize horizontal rotation in the use process, so that the winding space and range are increased.

The invention relates to a weight restraint bracket, in particular to a design method of a wind-proof anti-theft weight restraint bracket. The invention is characterized in that the weight restraint bracket comprises guide pulleys, one end of a weight fixing frame is provided with an anchor ear of the weight fixing frame, the other end thereof is the body of the weight fixing frame, the M-shaped anchor ear is welded on the body of the weight fixing frame, and both ends of the anchor ear of the weight fixing frame are fixed at both ends of the body of the weight fixing frame by bolts; and two groups of parallel guide pulley angle cleats are vertically fixed on the body of the weight fixing frame by bolts, two parallel guide pulleys are vertically connected between the two parallel guide pulley angle cleats of each group, and a gap is formed between the two guide pulleys. The weight restraint bracket of the invention overcomes the problems of oscillation, impact, clamping stagnation, deflection and the like of the weight restraint bracket in a strong wind area, and simultaneously changes the sliding friction between the anchor ear of the weight and the restraint pipe into rolling friction, thereby reducing the friction resistance.

The invention discloses a fabricated green building structure. The fabricated green building structure comprises a wall frame, a triangular prism roof is fixed to the top of the wall frame, a plurality of solar panels and a wind turbine generator are installed on the side of the triangular prism roof, and a window and a door are installed on the wall frame. The triangular prism roof comprises twoisosceles triangular frames with symmetrical arrangement, the isosceles triangular frames comprise bottom frames and two isosceles frames, the two isosceles frames are connected through semicircular elastic parts, side midpoints of outer arcs of the semicircular elastic parts and the bottom frames are connected in a pressed mode, and side midpoints of inner arcs of the semicircular elastic parts and connecting parts are connected in a pressed mode. Arc protrusions are arranged on the bottom surfaces of the connecting parts, the arc protrusions are connected with the side midpoints of the innerarcs of the semicircular elastic parts in a pressed mode, one ends of vertical rods are connected with vertexes of the isosceles triangular frames, and the other ends of the vertical rods are connected with the top surfaces of the connecting parts. One ends of inclined rods are connected with midpoints of the isosceles frames, and the other ends of the inclined rods are connected with the top surfaces of the connecting parts. The fabricated green building structure can overcome the deficiency of the prior art and meet the seismic requirements of a prefabricated green building.

The invention discloses a chord grinding machine. The chord grinding machine comprises a machine frame, a guide rail, two grinding wheels, a drive mechanism and a chuck, wherein the two grinding wheels are driven by a first motor, the drive mechanism is used for driving the two grinding wheels to horizontally move, the chuck is arranged on the machine frame through a rotary shaft and is driven by a servo motor to rotate, an annular groove is formed in the outer circumferential surface of the chuck, one or more working grooves penetrating through the two bottom faces of the chuck are formed in the edge of the chuck in the axial direction, the depth of the working grooves is smaller than that of the annular groove, the chuck is arranged between the two grinding wheels and is parallel with the two grinding wheels, the position where each grinding wheel is located on the machine frame is higher than the position where the chuck is located on the machine frame, the height of the bottommost end of each grinding wheel is smaller than that of the topmost end of the chuck, the guide rail is composed of a front guide rail section and a rear guide rail section, and the chuck is located between the front guide rail section and the rear guide rail section. The chord grinding machine has the advantages that in the process that the grinding wheels grind tile-shaped magnets, the positions of the tile-shaped magnets are fixed relatively, and the tile-shaped magnets will not twist in the grinding process, so that form and location tolerance is avoided.

A wall socket including a base, a socket head and a wire, the socket head is detachably connected with the base, one end of the wire is electrically connected with the socket head, the other end of the conductor is arranged in the base, a socket is arranged on the socket head, the base comprises an inner cavity, the inner cavity is provided with a shaft and a rotating member rotatably arranged onthe shaft, the other end of the conductor is fixed and wound on the rotating member, a guide hole is arranged on the base, a coil spring is arranged between the rotating member and the shaft for returning the rotating member after rotating, ratchet teeth are uniformly arranged in the circumferential direction of the rotating member, a pawl elastically pressed on the ratchet teeth and an operationbutton for controlling the pawl to be away from the ratchet teeth are arranged on the base, and the pawl can prevent the rotating member from returning when the ratchet teeth are in conflict with eachother. As the wall socket of the invention can position the wire at any retract position when the socket head is taken out for use, the structure is simple, the problem of wire winding and knotting is not liable to occur, and the use is more convenient.

The invention relates to an intelligent assembling robot of a power distribution cabinet. The intelligent assembling robot comprises a switching device, two linear groove devices and two screw head limiting devices, wherein the middle of the switching device is provided with the two linear groove devices, the two linear groove devices are symmetrically arranged, and one screw head limiting deviceis installed at the outer end of each linear groove device correspondingly. According to the robot, the problems that when a screw is installed on the power distribution cabinet, a corresponding screwdriver needs to be used for working; when the screw is installed, the screw is required to be held by a person, and then the screw is installed by means of a tool, due to the fact that the screw is small, the screw can fall off during manual installation, and the screw is prone to be twisted in an inclined manner; and when a cross slot screw and a linear groove are installed, the person needs to tighten the cross slot screw and the linear groove by means of the corresponding tool, a large number of tools enable the person to be inconvenient to carry, the process is long in consumed time, laborintensity is high, efficiency is low and the like are solved, so that the function of carrying out multi-azimuth limiting on the cross slot screw and the linear groove screw can be realized.

The invention provides a method for planting fibrous root crops in the inferior land, and relates to the field of crop planting. The method for planting the fibrous root crops in the inferior land comprises the following steps: preparing crop base soil; carrying out seedling raising, filling grooves with the crop base soil, planting fibrous root system crops of grains, oil, cotton, vegetables and medicinal materials into the crop base soil, planting any two adjacent fibrous root system crops at intervals, laying drip irrigation pipes on the soil surface layer of the crop base soil for irrigation, and draining and recycling redundant accumulated water in the grooves after irrigation is completed. According to the method, the crops are directly planted in the planting area of the inferior land, new soil and the crops can be isolated from the external environment, the survival rate of the crops is increased, the influence of accumulated water on crop planting can be avoided, meanwhile, various wastes can be secondarily utilized to be used as fertilizers, and therefore, the method has high practical value and large-scale popularization and application are facilitated.

The invention discloses a fabricated steel structure tower crane foundation bearing platform. The fabricated steel structure tower crane foundation bearing platform comprises a plurality of sub-steelstructure bearing platforms, the sub-steel structure bearing platforms are connected through arc-shaped H-shaped composite steel members, a plurality of adjustable-size H-shaped steel members, cross-shaped H-shaped steel members and U-shaped buckles; the sub-steel structure bearing platforms comprise lattice columns of a lower foundation, reinforced cages, concrete and round steel pipes; the reinforced cages are arranged in the round steel pipes, the lattice columns of the lower foundation are arranged in the reinforced cages, and the concrete is poured between the round steel pipes and the lattice columns; and the outer sides of the round steel pipes are fixedly connected with the arc-shaped H-shaped composite steel members, the arc-shaped H-shaped composite steel members are connected with the adjustable-size H-shaped steel members through the U-shaped buckles, the adjustable-size H-shaped steel members are connected with one another through the U-shaped buckles, and the adjustable-size H-shaped steel members are connected with the cross-shaped H-shaped steel members through the U-shaped buckles. The force is reliable, and the installation and disassembly are convenient. The problems of long maintenance time for construction of a cast-in-situ concrete tower crane foundation bearing platform, waste of concrete materials and environmental protection are solved.

The invention discloses an improved V-shaped anvil. The improved V-shaped anvil comprises two V-shaped anvil bodies which are symmetrically arranged, a dovetail-shaped connecting block is fixed to the top face of a V-shaped anvil block, a second cylindrical groove is formed in the center of the bottom face of the V-shaped anvil block, one end of a first spring is connected with the top face of the second cylindrical groove, the other end of the first spring is connected with a pressing rod, a third cylindrical groove is formed in the top face of the second cylindrical groove, each V-shaped anvil body comprises two trapezoid prismatic table anvils, trapezoid prismatic table through grooves are formed in the top faces of the trapezoid prismatic table anvils, the pressing rod comprises a cylindrical rod, a cylindrical protrusion is fixed to the top face of the cylindrical rod and connected with the first spring in a sleeved mode, two trapezoid prismatic table side rods are symmetrically fixed to the edge of the side face of the cylindrical rod, elastic pieces are fixed to the side faces of the trapezoid prismatic table through grooves, the side faces of the trapezoid prismatic table side rods are connected with the elastic pieces in a pressing mode, and cross-shaped pressing rods are movably connected to the top faces of the trapezoid prismatic table side rods. According to the improved V-shaped anvil, defects in the prior art can be overcome, high-temperature alloy forging structure is obviously improved, and the working efficiency is improved.

The invention discloses a production process of a skin-core polyester monofilament by separating a mother yarn. The production process comprises the following steps: drying, carrying out melt spinning, preparing the mother yarn, and preparing a monofilament; the drying step comprises the steps that conventional polyester chips are pre-crystallized and dried to obtain dry polyester chips A, the pre-crystallization temperature of the conventional polyester chips is 160-170 DEG C, the drying temperature of the conventional polyester chips is 150-170 DEG C, the drying time of the conventional polyester chips is 6-8 hours, and the moisture content of the dry polyester chips A is smaller than or equal to 0.003%; the low-melting-point polyester chips are subjected to one of rotary drum drying or continuous drying to obtain low-melting-point polyester dry chips B, the melting point of the low-melting-point polyester chips B is 110-230 DEG C, the drying temperature is 60-130 DEG C, the drying time is 8-30 hours, the rotary drum drying vacuum degree is smaller than or equal to -0.093 Mpa, and the water content of the low-melting-point polyester chips B is smaller than or equal to 0.0045%; the preparation process of the skin-core type polyester monofilament is high in production yield and uniform in evenness, and a user uses the skin-core fibers which do not need to be twisted.