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

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 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 discloses a preparation method of cationic waterborne polyurethane resin with high solid content. The preparation method comprises the following steps: adding polyester dihydric alcohol, micromolecular dihydric alcohol, polyhydric alcohols and bis-hydroxyl polyethylene oxide ether into a reactor to heat, and dehydrating in vacuum; introducing nitrogen gas to protect, and dropwise adding diisocyanate at 60-80 DEG C; cooling to 45-55 DEG C, and dropwise adding hydrophilic monomer after adding a catalyst; keeping the reaction temperature to 45-50 DEG C and stopping heating until the content of isocyanate is detected to reach a theoretical end point; regulating the viscosity by using acetone, neutralizing by using acetic acid at 40 degrees until the pH value is 6-7; adding deionized water and a chain extender to stir and disperse at a high speed, and removing acetone under reduced pressure to obtain the cationic waterborne polyurethane resin. While being used as a leather finishing agent, the cationic waterborne polyurethane resin shows relatively firm adhesion with leather due to positive charges; while woodware is coated with the cationic waterborne polyurethane resin, tannic acid is fixed by virtue of electric charge effects to prevent the tannic acid from migrating, so that a wood plate is flat and smooth, and has gloss and good sealing effects.

The invention discloses a pipe bending machine in the field of mechanical manufacturing. The pipe bending machine comprises a work table, a feeding mechanism, a pressing mechanism and a pipe bending mechanism, wherein the feeding mechanism is arranged on the work table, the pressing mechanism is used for pressing a pipe material, and the pipe bending mechanism is used for bending the pipe material; the pipe bending mechanism comprises a core rod sleeved with the pipe material on the work table, and further comprises a rotating device driving the pipe material to bend, one end of the core rod is connected with the feeding mechanism, the other end of the core rod is provided with a bent pipe head capable of being bent, the bent pipe head comprises a plurality of bent pipe pieces which are connected with one another, and the center of the bent pipe pieces are provided with openings; the outer sides of the openings of the bent pipe pieces are provided with arc-shaped grooves, and an elastic member and a limiting member used for limiting the expansion and contraction of the elastic member are arranged between every adjacent two bent pipe pieces; the elastic members comprise arc-shaped plates matched with the arc-shaped grooves, the arc-shaped plates are provided with a plurality of telescopic springs, one end of each telescopic spring is connected to the arc-shaped plate of one of the bent pipe pieces, and the other end of the corresponding telescopic spring is connected to the arc-shaped plate of the adjacent bent pipe piece. The pipe bending machine has the advantages that theuse is convenient and the pipe bending quality is improved.

The invention relates to the technical field of shock absorber equipment, and discloses a damping type shock absorber device capable of preventing elasticity from disappearing, which comprises a shell. A first connecting shaft is movably connected to the interior of the shell; a first piston is movably connected to the top end of the first connecting shaft; an air spring is movably connected to the bottom surface of the first piston; the bottom end of the air spring is movably connected with a second piston; and the bottom end of the second piston is rotatably connected with a first connecting rod. According to the damping type shock absorber device capable of preventing elasticity from disappearing, through connection of the shell and the first shell, the problem that shock absorber equipment in the prior art is simple is solved; by means of air pressure, during actual use, the situation that the spring loses elasticity due to long-time use is avoided, the service life of the shock absorber is prolonged, and the practicability of the shock absorber is improved; and adjustment is carried out according to the actual vibration condition, so that the advantages of reducing the air pressure cost and improving the reliability of the shock absorber are achieved.

The invention discloses an electric meter box for large-scale high-voltage power transmission equipment. The box comprises a box body, a partition plate is fixedly mounted in the box body; a first groove penetrates through the interior of the partition plate; a wire inlet hole is formed in one side of the partition plate; a wire arranging plate is fixedly installed between the partition plate andthe wire inlet hole, fixing plates are fixedly installed on the other side of the partition plate, an upper positioning plate is movably installed between every two adjacent fixing plates, a lower positioning plate is fixedly installed below each upper positioning plate, and an electric meter box is movably installed between each upper positioning plate and the corresponding lower positioning plate. By arranging a series of structures, a user can tidy wires conveniently in the using process of the device, compared with previous perforated wire tidying, operation is more convenient, limitationof the thickness of wire holes is avoided, the electric meter box can be fixed conveniently, later maintenance and replacement of the electric meter box are facilitated, and meter reading of the usercan be facilitated.

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 relates to the technical field of threaded pipe production equipment, and discloses an effectively-fixed threaded pipe heating production device. The effectively-fixed threaded pipe heating production device comprises a heating device, wherein a pipeline is movably connected to the outer side of the heating device; a threaded feeding device is rotationally connected to the outer sideof the pipeline; a shell is arranged on the outer side of the threaded feeding device; a suction cup is arranged on the outer side of the heating device; a connecting pipe is arranged on the outer side of the suction cup; a first piston is slidably connected to the interior of the connecting pipe; and a first air bag is fixedly connected to the outer side of the connecting pipe. According to theeffectively-fixed threaded pipe heating production device, through connection of the heating device and the connecting pipe, the problem that threaded pipe production equipment in the prior art is simple is solved, the situation that the elasticity of an adjusting device disappears during threaded pipe production is avoided, heat dissipation can be rapidly conducted by means of the characteristicsof magnetic fluid, the heating production device is prevented from producing unqualified products in the using process, and the advantage of improving the product quality is achieved.

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 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 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 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.