79results about How to "Reduces the possibility of loosening" patented technology

A tooth adapter having an elastomeric clamp assembly and a method for using the same are provided. The system includes a tooth adapter having a first end operable to receive a removable tooth point and a second end having an upper blade and a lower blade, the upper and lower blades at least partially defining a cavity configured to receive a tooth horn. An upper insert is configured to be disposed at least partially within an orifice in the upper blade, and a lower insert is configured to be disposed at least partially within an orifice in the lower blade. A wedge member having an elastomeric portion disposed between its first and second faces is positioned at least partially within the cavity, through a slot in the tooth horn, such that when a fastener is used to couple the upper and lower inserts through the slot in the tooth horn, the first face of the wedge member engages the tooth horn and the second face of the wedge member engages the upper and lower inserts, forming a rigid coupling between the tooth adapter and the tooth horn.

The invention belongs to the technical field of feed processing devices, in particular to a feed granulation device with a drying function for animal husbandry. In view of the problem that the existing feed granulation device cannot realize effective extrusion moulding, and the feed particles are easily loosened and bonded, a following scheme is proposed, the device further comprises a rack, wherein a filter box and a transport box are respectively fixed by screws on both sides of the top outer wall of the rack, one side outer wall of the transport box and the top outer wall of the filter boxare fixed with a fixed box by screws, a molding plate is fixed to one side of the bottom inner wall of the transport box by the screws, and the top outer wall of the transport box is fixed with a hopper by the screws. The feed granulation device helps to improve the extrusion molding effect, can reduce the possibility of looseness of the feed grains, facilitates the control of the size of the feedpellets, and facilitates the quantitative collection of the feed, is helpful for improvement of production efficiency, can dry the feed pellets inside the filter box, which helps to speed up the drying efficiency, can improve the filtration and screening effect of the feed, and is helpful for improvement of the product quality.

The invention provides a mixed flow fan, which comprises a driving motor, an impeller wheel, a wind-sock, a guide vane cylinder and a guide vane, one side of a wind inlet of the wind-sock is equipped with a cover plate, the cover plate covers a part area of the circumference of one side of the wind inlet of the wind-sock to reduce the actual wind entering area of the wind inlet, and the diameter of the impeller wheel still keeps adapted to the original wind inlet. The wind inlet of the wind-sock of the fan is equipped with the cover plate, which reduces the actual wind entering area of the fan, can largely increase wind pressure, and enables radiating wind to have a better radiating effect. The optimized implementation mode of the invention further takes measures to improve the quality of radiating wind flow, enables the fan to reduce vibration, and takes vibration insulation measures. The mixed flow fan is particularly suitable for being used in radiating occasions of locomotive inverters, or can be applied to other similar occasions.

The embodiment of the invention provides electrical equipment. The electrical equipment comprises a first shell, a second shell and a cable sheath, wherein the first shell comprises a wire inlet holecomposed of a limiting hole and a rotation stopping hole, and the cable sheath correspondingly comprises a limiting sleeve shoulder and a rotation stopping sleeve shoulder; the second shell comprisesa positioning rib, and the rotation stopping sleeve shoulder further correspondingly comprises a limiting groove. The cable sheath is arranged in the wire inlet hole in a penetrating manner, so that the rotation stopping hole and the rotation stopping sleeve shoulder are in hole-shaft fit, and the cable sheath is prevented from rotating relative to the first shell; and the limiting sleeve shoulderand the limiting hole are in hole-shaft fit, so that the cable sheath is prevented from moving in the direction of penetrating into the cable inlet hole. Therefore, according to the technical schemeprovided by the embodiment of the invention, the cable sheath can be reliably fixed, the possibility that the cable sheath slides and gets loose relative to the electrical equipment is reduced, and the cable of the electrical equipment is effectively protected.

The invention relates to a technology for improving automobile parts, and discloses a reinforced aluminum alloy hub with antiskid bolt holes. The reinforced aluminum alloy hub is provided with a hub body, wherein at least four mounting holes are formed in a mounting hub of the hub body. The reinforced aluminum alloy hub is characterized in that a steel sleeve is arranged in each mounting hole, wherein a bolt hole is formed in each steel sleeve, and consists of two sections, i.e. a cylindrical hole and a taper hole; antiskid knurls are formed on the surfaces of the taper holes of the bolt holes in a rolling way. According to the reinforced aluminum alloy hub, the problems of potential safety hazards in driving due to the facts of bolt hole damage and loosening probably caused by insufficient strength and poor antiskid performance of the bolt holes in a conventional aluminum alloy hub are solved; the invention is applied to the improvement of various types of aluminum alloy hubs.

The invention provides an anti-scratch ultra-slip guide wire, a coating method and coating device thereof, wherein the anti-scratch super-slip guide wire comprises a core wire, the tapered section ofthe core filament is coated in the polymer, the other areas of the core filament are encased in hydrophilic or hydrophobic super-slip sleeves, the heat shrinkage temperature of the super-slippery sleeves is higher than the melting point of the polymer tubes and they partially coincide with the push rod of the core filament. In the coinciding region, the super-slippery sleeves are coated with the polymer and the thickness of the polymer in the coinciding region is smaller than that in other regions of the polymer. The design of the scheme is exquisite, the arrangement of high molecular polymerpipe and super-slip sleeve, the two pipe are partially overlapped and coated, so that the high molecular polymer pipe can be restricted by the super-slip sleeve, the pulling force of the polyurethanepipe coating can be increase by more than 10N, the possibility of the high molecular polymer pipe loosening can be reduced, and the safety can be improved.

The invention discloses a corrosion-resistant high-strength hexagonal bolt which comprises a bolt body and a gasket; the bolt body further comprises a screw head, a stud and reinforcement ribs; the stud consists of a contraction section, close to the bottom of the screw head, and a threaded section, away from the bottom of the screw head; a plurality of side edge grooves are formed in the outer side wall of the threaded section; the reinforcing ribs are arranged in the side edge grooves respectively; the gasket further comprises an inner side elastic gasket and an outer side anti-loose gasket;the inner side elastic gasket is nested on the contraction section; and the outer side anti-loose gasket is connected with the stud through the inner side elastic gasket. Compared with the prior art,the corrosion-resistant high-strength hexagonal bolt is of a simple structure, is reasonable in design and is capable of effectively improving the structural strength and the corrosion resistance ofthe bolt and ensuring the stability and the reliability of bolt connection for a long time.

The invention relates to the high voltage electrical equipment control field and discloses a nozzle connection structure, an arc extinguish chamber using the same and a breaker using the same. The nozzle connection structure comprises a nozzle and a moving contact which are respectively arranged in front and at the back; the outer side of the nozzle is sleeved by a flow guiding ring which is internally provided with a stepped hole with the front end being small and rear end being big; the rear side of the nozzle is provided with a protruded ring which protrudes outwardly; and the protruded ring is clamped in the stepped hole of the flow guide ring by a flow guide ring and the moving contact. In the nozzle connection structure, the arc extinguish chamber and the breaker, the protruded ring of the nozzle is clamped in the stepped hole of the flow guide ring by the flow guide ring and the moving contact, and a breaker nozzle is fixed on the moving contact by virtue of the flow guiding ring. Compared with the traditional direct bolt joint, the nozzle connection structure has reliable connection, reduces the possibility of looseness of the nozzle and prevents foreign matters produced by nozzle wearing.

The invention relates to the field of switch control and particularly relates to an intelligent switch. The intelligent switch comprises a mounting bottom plate installed on a wall surface, a switch panel fixed on the mounting bottom plate, a cover of the switch panel, a circuit contact component arranged in the switch panel, a pressing member for contacting the circuit contact component, and a disinfecting mechanism arranged in the switch panel. The mounting bottom plate is square, and fixed holes are formed at four corners of the mounting bottom plate. The fixed holes are internally providedwith fasteners for fixing the mounting bottom plate. Each of the fasteners comprises a bolt column and two nuts matched with the bolt column. The two nuts are uniformly provided with a plurality of bolt holes, the bolt holes are internally provided with small bolts matched with the bolt holes, and the upper and lower end faces of the nuts are uniformly provided with anti-slip grooves. According to the scheme, the problems of inconvenient installation and disassembly of an existing switch, the looseness of the switch caused by vibration in pressing the switch and the disinfection of the switchare solved.

The invention relates to the field of spring loaded valves. A safety valve provided by the invention comprises a valve body and a valve element, the valve element is fixedly arranged in an inner cavity of the valve body, and the inner wall of the valve body and the valve element jointly define a pressure relief passage; and a fastener is further included and is fixedly arranged on the valve body,and the fastener abuts against the end, far away from the pressure relief passage, of the valve element. The fastener abutting against the valve element is additionally arranged so that the valve element can be supported by the fastener when impacted by high-pressure fluid; and the capacity of the valve element to bear fluid impact is improved by abutting supporting of the fastener, the possibility that the valve element looses due to long-term fluid impact is reduced, the possibility of movement of the valve element towards the direction away from the pressure relief passage due to fluid impact is reduced, damage caused by fluid impact to the safety valve is prevented to a greater extent, and the safety valve is prevented from losing efficiency in advance.

The invention discloses a novel electric propulsion device. On the basis of an original simple motor support which is only composed of a motor installation plate and an installation base, a transmission shaft installation plate and a tensioning connecting piece are additionally arranged, and the characteristics that the structure is simple and the design is reasonable are still kept. Thus, when a linkage part (such as a propeller) runs at high speed, the transmission shaft installation plate and the connecting piece will support a transmission shaft and share a part of force, so that the situation that propulsion force generated by the linkage part is completely and directly transmitted to a motor shaft through the transmission shaft is avoided; moreover, the connecting piece can tension the transmission shaft and a motor through the motor installation plate and the transmission shaft; a buffering assembly is additionally arranged, vibration generated by the linkage part and vibration generated by work of the motor itself can both be buffered through the buffering assembly, and the probability that the motor shaft and the transmission shaft become loose is reduced.

The invention discloses an anti-loosening nut and gasket assembly which comprises a nut and a gasket, and wedge blocks are arranged on the contact faces of the nut and the gasket. The lower end face of the wedge-shaped block of the nut and the upper end face of the wedge-shaped block of the gasket are oppositely arranged and are inclined planes, and when the nut and the gasket rotate relatively, the lower end face of the wedge-shaped block of the nut and the upper end face of the wedge-shaped block of the gasket slide relatively and then are in staggered pressing contact, so that the height of a nut and gasket combination is changed; and the heights of at least one part of the wedge blocks on the nut are sequentially reduced, so that the gasket can slide relative to the nut when the gasket reversely rotates around the fastening direction of the nut. When the gasket rotates reversely, the component force for pushing the nut to loosen is small, the loosening possibility of a fastener is reduced, and the anti-loosening service life is longer.

The invention relates to a structure for preventing steps of a pitched roof from slipping off and a construction method thereof, the structure is applied to the field of pitched roof structures, the structure comprises a rigid waterproof layer arranged on the pitched roof, the rigid waterproof layer is cast in situ on the pitched roof, the rigid waterproof layer and the pitched roof are connected through a connecting structure, and the rigid waterproof layer is integrally in a step shape along the pitched roof. The structure has the advantages that the connecting firmness of prefabricated steps and the pitched roof is improved, and then the prefabricated steps are not prone to slipping off from the pitched roof.

The invention relates to an anti-pulling type new energy automobile charging port connecting mechanism. The connecting mechanism comprises a socket assembly and a plug assembly. The socket assembly comprises a socket groove frame, a connector, a connecting table, a conductive contact mechanism and an induction input mechanism; and the plug assembly comprises a plug supporting rod, a conductive connection assembly and an induction output mechanism. The charging contact mechanism is locked and closed through the mechanically-driven lock catch mechanism, manual pressing and locking are not needed, and compared with a single-spring-bolt mechanism, the lock catch type locking mechanism is more stable in locking and not prone to loosening; and in addition, a wireless radio frequency system is adopted in the data verification mechanism, and compared with traditional hard wire connection, the data verification mechanism is not prone to being cracked, and safety is higher.

The invention discloses an artificial elbow joint surface replacement prosthesis. The prosthesis comprises a prosthesis part matched in shape with distal humerus and mounted at the distal humerus, as well as an internal fixed steel plate and an external fixed steel plate which are connected with the prosthesis part and fixed to an inner side column and an outer side column of the humerus respectively, wherein the prosthesis part adopts a hollow cylinder-like structure; the external shape of the prosthesis part is the same as the joint surface shape of the distal humerus; the external contact surface of the prosthesis part is a smooth coating surface and is in contact with the joint surface of proximal ulna; and a first connecting part and a second connecting part are arranged at one end, connected with the prosthesis part, of the inner fixed steel plate and positioned in two perpendicular planes respectively. According to the prosthesis, the bone mass loss caused by operations of wide-range dissection of soft tissues around elbow joint, osteotomy, marrow expansion and the like in a prosthesis replacement process can be avoided, the prosthesis loose of an insertion-type prosthesis can be avoided, and the incidence rate of deep infection caused by intramedullary operation can be reduced.

The invention discloses a fastening structure suitable for movable floating nuclear power plant platforms. The fastening structure comprises bolt column bodies, the platforms connected through the bolt column bodies and two nuts matched with the bolt column bodies; a plurality of small bolt holes are evenly formed in each nut, and the two adjacent nuts are connected in the mode that small bolts are installed in the small bolt holes. According to the actual sea condition characteristics, an existing fastening structure is improved; according to the bolt screwing principle, the multiple small bolt holes are formed in the end face of each nut, the structure mode that the small bolts are arranged is used, and the multiple small bolt holes are formed to reduce the weight of the main nuts; meanwhile, the small bolts are evenly distributed so that fixation between the nuts can be scattered to the end faces of the nuts, the contact area between the two nuts is accordingly increased, the mutual stress area is increased, the possibility of looseness between the nuts is greatly reduced, and the overall sealing performance of the bolts is improved.

The invention discloses a combined type locknut component. The combined type locknut component comprises a first nut, an anti-loosing clamping piece, a second nut, an auxiliary fastening bolt and a reset spring; compared with the prior art, the combined type locknut component is simple in structure and reasonable in design, can effectively absorb vibration load, guarantees the stability and reliability of connection of the bolt for a long time, and can also recycle the other components in a way of replacing a damaged component, thus lowering the using cost.