33results about How to "Avoid losing elasticity" patented technology

The invention provides a floating sealing connector. The floating sealing connector comprises an outer shell and an inner shell that is connected in the outer shell in a floating connecting manner; the floating sealing connector also comprises a sealing rubber sleeve for sealing and blocking a floating gap between the inner shell and the outer shell; the inner edge of the sealing rubber sleeve is in sealing connection with the inner shell; an outer shell connecting surface used for being connected with the sealing rubber sleeve is arranged on the outer shell; the outer edge of the sealing rubber sleeve is connected with the outer shell connecting surface through an outer edge connecting part and an outer annular pressing plate; and an outer limiting structure used for limiting the compression deformation mount of a sealing rubber mat and extending towards the outer shell connecting surface is arranged on the outer edge or the inner edge of the outer annular pressing plate. According to the floating sealing connector, the sealing rubber sleeve and the inner shell and the outer shell are connected with relatively high connection strength and a relatively better sealing effect.

The invention provides a gas release device and an unmanned aerial vehicle and relates to the field of landing equipment for aerial vehicles. A gas release mechanism comprises a trigger mechanism, a striker release mechanism and a gas storage cylinder; the striker release mechanism includes a mounting tube that is hollow, a striker component positioned in the mounting tube and a trigger; one end of the mounting tube is provided with a limiter; the trigger is limited between the limiter and the strike end of the striker component; the opening end of the gas storage cylinder is connected to theend, far away from the limiter, of the mounting tube; the opening end right faces the strike end of the striker component; the trigger mechanism is positioned on one side of the striker release mechanism; when the trigger is in non-operating state, the clamp end, far away from the strike end, of the striker component is extended out of the mounting tube and in clamped connection with the trigger mechanism; when the trigger is in operating state, the striker component strikes the opening end, and the clamp end leaves the trigger mechanism. The gas release device herein enables the parachute ejection distance to be enlarged and assembly difficulty to be relieved, and the influence of spring deformation in the prior art upon parachute ejection is avoided.

The invention discloses a portable socket for portable installation, comprising a plug, a transparent cover, a hoisting mechanical system, a socket shell and a movable outlet, wherein the socket shelland the transparent cover are nested with each other, the plug is installed inside the transparent cover, and the movable outlet is provided at the end of the socket shell opposite to the transparentcover. The portable socket is provided with a retraction mechanism, a push structure and a start linkage structure. By pressing an inverted T fixing rod to start the start linkage structure, on the one hand, a blocking drive structure is urged to drive, a blocking structure is rotated, the retraction mechanism is allowed to rotate smoothly, and the length of a wire of the plug is adjusted; and onthe other hand, the push structure is also driven to push the socket out from the movable outlet, when the portable socket is not used, the transparent cover covers the plug, and the socket is retracted and placed in the socket shell to avoid short circuit on next use caused by accumulation of dust due to long-term non-use.

The invention relates to a power socket with an automatic-rotating contact copper sheet, which is characterized in that: a rotary cavity in the socket rotates freely according to the insertion directions of different flat plug copper sheets, thereby enabling a guide contact copper sheet in the rotary cavity to better suit the flat plug copper sheets in the aspects of direction and space; a copper sheet reset spring provides support and elasticity supply functions for the guide contact copper sheet, and does not bear flowing current; a contact point of the copper sheet reset spring is movable, so that the guide contact copper sheet can rotate vertically and contacted and attached with the flat plug copper sheets with a larger area; and a conductive cord is electrically jointed with the guide contact copper sheet in a compression manner to bear the flowing current.

The invention belongs to the technical field of engineering construction and specifically discloses a grouting pipe bit for road construction. The grouting pipe bit comprises a drill bit main body, wherein a first chamber is formed in the drill bit main body; a high-pressure runner which is connected with the first chamber is formed on the drill bit main body; a high-pressure nozzle is arranged inthe high-pressure runner; a drill tip is arranged on the lower part of the drill bit main body; a second chamber is formed in the drill bit; the first chamber is connected with the second chamber; anauxiliary grouting hole which is connected with the second chamber is formed on the drill tip; a hydraulic control cut-off unit and a grout backflow unit are arranged in the second chamber. The grouting pipe bit with such a structure is capable of solving the problem of pipeline blocking caused by the stagnation and solidification of residual grout in the channel during high/low pressure conversion process.

A female contact comprises a tube-shaped socket having a male-contact accommodation space, and a flat spring held in the socket so as to apply elastic force to a male contact. A notch is formed at a male-contact inlet of the socket. A hook formed at one end of the flat spring is engaged with the notch, so that the flat spring is latched at the male-contact inlet.

The invention provides an automobile steering wheel angle sensor which comprises a shell and a circuit board. A through hole is formed in the center of the shell, a driving gear is mounted on the periphery of the through hole, a first gear and a second gear are mounted on one side of the through hole, the circuit board is mounted on the periphery of the through hole and mounted above the driving gear, the first gear and the second gear, the first gear and the second gear are meshed to the driving gear respectively, radius of the first gear is greater than that of the second gear, the driving gear has 66 teeth, the first gear has 28 teeth, and the second gear has 22 teeth; an inwards-recessed round fixing groove is formed in the center of each of the first gear and the second gear, a pair of magnetic sheets in side-by-side arrangement are fixed in the fixing grooves, and a magnetic induction Hall chip is mounted on each magnetic sheet. The defect of angle measuring deviation caused by the fact that a rotating shaft cannot go back to an original position because a resetting spring is prone to fatigue and lower in elasticity when a Hall angle sensor is used for a long time is avoided.

The invention discloses a steel wire twisting prevention device, and belongs to the field of steel wire production equipment. The steel wire twisting prevention device comprises a twisting preventionmodule; the twisting prevention module comprises a fixed piece, a connecting rod, a limiting ring and an elastic piece; one end of the connecting rod is fixedly connected with the limiting ring, and the other end is rotationally connected with the fixed piece; one end of the elastic piece is connected with the fixed piece, and the other end is connected with the connecting rod; when steel wires are slightly twisted, the influence on winding by the steel wire twisting is eliminated; and when the steel wires are badly twisted, the steel wire protection is started, so that the steel wires are difficultly broken in the winding process.

The invention relates to the field of masks, in particular to a formula of a matsutake soothing and repairing mask and a preparation method thereof. The formula comprises panthenol, dipotassium glycyrrhizinate, ergothioneine, glutathione, palmitoyl hexapeptide-12, palmitoyl dipeptide-7, yeast polypeptides, cetearyl olivate, sorbitan olivate, a bacillus fermentation product skin conditioner, a humectant, a thickening agent and an antioxidant. According to the formula and the preparation method of the matsutake soothing and repairing mask, the added skin conditioner is natural plant essence and has the effects of efficiently resisting oxidation, delaying senescence, preventing age-related skin elasticity loss and modifying and improving the facial contour; and in the added antioxidant, lecithin has the effects of moisturizing and resisting oxidation, the skin regeneration activity can be guaranteed by adding the component into the cosmetic, and the component has good hydrophilicity and lipophilicity, so that the skin gloss can be increased after the cosmetic is used.

The invention discloses a telescopic hose and a preparation method thereof. The telescopic hose at least comprises an outer hose body and an inner hose body. The material of the outer hose body includes the following raw materials by weight: 100 parts of TPE, 1-8 parts of SiO2, and 0.1-1 part of an antistatic agent; and the material of the inner hose body includes the following raw materials by weight: 100 parts of PVC; 1-30 parts of EPDM, 1-30 parts of NBR, 0.3-1.0 part of a stabilizer, 10-80 parts of a plasticizer and 0.1-1 part of PE wax. The preparation method includes: subjecting the material of the inner hose body to melt extrusion, and then conducting molding, traction and shaping to obtain the inner hose body; conducting melt extrusion on the material of the outer hose body, compounding the melted and extruded material to the inner hose body, and carrying out cooling and traction to obtain a finished product. The telescopic hose provided by the invention has the advantages of high strength, static resistance, good flexibility and long service life.

The invention discloses a mechanical sealing structure for a centrifugal pump. The mechanical sealing structure comprises a fixed ring, a movable ring, a mechanical sealing seat and a shaft sleeve, wherein the shaft sleeve is fixedly arranged on a pump shaft in a sleeving manner, a movable ring sealing seat allowing the movable ring to be limited in the movable ring sealing seat is arranged in the shaft sleeve in a sleeving manner, a gap of the mechanical sealing seat is arranged on the shaft sleeve in a sleeving manner, a fixed ring sealing seat allowing the fixed ring to be limited in the fixed ring sealing seat is arranged between the mechanical sealing seat and the shaft sleeve, an axial spring is arranged in the fixed ring sealing seat, and the spring enables the fixed ring to be abutted against the movable ring; radial positioning plates are arranged at the rear end of the mechanical sealing seat; a shaft head loop which is in axial and movable connection with the pump shaft is arranged on a shaft shoulder of the pump shaft in a sleeving manner. According to the mechanical sealing structure disclosed by the invention, a double end surface mechanical seal is changed into a single end surface mechanical seal, and a leakage problem caused by the fracture of a mechanical sealing friction pair is solved, influence of particle media on a movable ring sealing surface and a fixed ring sealing surface is reduced, the service cycle of the pump is prolonged, the expense of spare parts is reduced, and the repairing cost is reduced.

The invention relates to an automatic closing device for closing the door, which can solve problems of automatic closing mechanics. The invention uses screw inclined surface, which depends on the self gravity of door to automatically close the door. It can be used in variable doors.

The invention discloses automobile accessory box. The automobile accessory box structurally comprises a storage layer, a box body and a handle, the storage layer is embedded and clamped on the end face of the inner side of the box body, the handle is movably clamped and connected to the right center of the upper end of the box body, the handle is located on the storage layer, the storage layer comprises an insetting block, a placing table, protection plates and sliding mechanisms, the insetting block is embedded and fixed on the inner side end face of the storage layer, and is attached to thesliding mechanism, the protection plates are embedded and connected to the left side and the right side of the placing table, the sliding mechanisms are embedded and connected to the outer side end faces of the protection plates, the two sliding mechanisms are symmetrically mounted on the left and right sides of the protection plates, and the problems that in the work process, engine oil, lubricating oil and the like are inevitably splashed to the outer side of the box body, oil dirt flows to the sliding mechanisms in the storage layer along the outer side outline, a blocking strip is used forpreventing the oil from making direct contact with the surface of a rubber sliding rail, original elasticity is lost, and after aging and embrittlement of the sliding mechanisms, the storage layer difficultly slides can be effectively solved.

The invention provides a rubber tire cord fabric. The cord fabric comprises yarns and is formed by weaving the plurality of yarns; the yarns are high-modulus and low-shrinkage strong yarns; and the plurality of yarns are knitted to form a knitted fabric with certain elasticity. The cord fabric is woven into a cord fabric layer of a tire; certain gaps are formed between the multiple yarns; in the driving process, when rubber is straightened and deformed, under stress, the multiple yarns firstly extrude the rubber in the gaps to deform the rubber till the multiple yarns get close to one another and the woven yarns are tightly attached to one another and tensioned; and by designing the structure, a large amount of heat generated by further deformation of the rubber can be avoided, the situation that the rubber loses elasticity due to sharp rising of the temperature of the solid tire is avoided, the solid tire can be applied to a higher-speed driving scene or a scene bearing larger pressure, and meanwhile the effective buffering effect can be achieved.

The invention belongs to the technical field of radio frequency systems and particularly relates to a method for dynamic connection of radio frequency equipment. The method comprises the following steps: (1) carrying out surface treatment before electroplating on workpieces and reeds of the radio frequency equipment; (2) adhering and fixedly connecting the workpieces and reeds of the radio frequency equipment; (3) carrying out surface treatment before electroplating on the workpieces and the reeds of the radio frequency equipment, which are fixedly connected; (4) carrying out overall silver electroplating on the fixedly connected workpieces and reeds of the radio frequency equipment. The method has the advantages that the dynamic connection of the radio frequency equipment can be realized and the radiofrequency current can be stably and reliably connected for a long term.