34results about How to "Guaranteed elastic deformation" patented technology

The invention relates to a clamping device for piecing and connecting a pouring template of a building. The clamping device comprises a support, a moving handle and an elastic clip, wherein the elastic clip is made of spring steel, and is provided with a left and a right clamping parts; the support is provided with a hooking part, and a horizontal extending part used for restraining a rectangular hole of the elastic clip is arranged on the support; the moving handle is hinged with the support by taking the end part at one end of the moving handle as a fulcrum and the other end of the moving handle as a force point, and a gravity point is arranged between the fulcrum and the force point, and is hinged with the upper end of the elastic clip; the elastic clip penetrates through the rectangular hole of the support, and freedom for the displacement of the elastic clip is preserved in the longitudinal direction of the rectangular hole; the lower parts of the left and the right clamping parts of the elastic clip are of an inward opposite bent shape; when in a free state, the lower parts of the left and the right clamping parts open, and the opening distance of the lower parts is greater than the width of the rectangular hole of the support; and the upper parts of the left and the right clamping parts make contact with the long edges of the rectangular hole. The clamping device can be used for rapidly fastening and connecting the pieced pouring template, and has the advantages of convenience for use, simple structure and easiness for manufacture.

The present invention discloses a wet clutch friction wafer which is annular sheet steel, many circumferential fixed protruding gears are placed inner circumference or outer circumference equably, and the friction wafer is annular sheet steel with axial elastic deformation, the end of it is curved surface. When clutch is separated, it can assure full separation between friction wafers by self axial elastic deformation eliminating moebius oil conglutination between friction wafers.

Provided is a rapid multi-gap vacuum disconnector. The rapid multi-gap vacuum disconnector comprises an electrode structure, current-carrying contacts, a metal carrier structure, a driver, an insulating driving pull rod structure and a vacuum cavity, wherein the electrode structure comprises a movable main electrode connected with a corrugated pipe and a fixed auxiliary electrode, the insulating driving pull rod structure comprises contact carrier fixing sealing plates to which current-carrying contact metal carriers are fixed, corrugated pipes and an insulating driving pull rod, the corrugated pipes and the insulating driving pull rod are connected with the contact carrier fixing sealing plates, the current-carrying contacts are installed on the current-carrying contact metal carriers respectively, and working modes are switched through the insulating driving pull rods; the insulating driving pull rods drive the current-carrying contacts to shift through the contact carrier fixing sealing plates and the current-carrying contact metal carriers connected with the contact carrier fixing sealing plates, so that a circuit is formed by the main electrode, the auxiliary electrode and the current-carrying contacts when the rapid multi-gap vacuum disconnector is in the current-carrying working state; multi-gap vacuum insulation is formed by the main electrode, the auxiliary electrode and the current-carrying contacts when the rapid multi-gap vacuum disconnector in the isolation working state. According to the rapid multi-gap vacuum disconnector, application of multi-gap vacuum insulation in the rapid disconnector is achieved, and the high-voltage resistance capacity of the rapid multi-gap vacuum disconnector is improved.

The present invention provides a dual-valve-element sealing structure. The dual-valve-element sealing structure comprises a valve seat assembly and dual valve elements; the bottom of each valve element is provided with an annular groove; the thickness of each valve element is 6mm; and the thickness of the remaining wall of a position, where the annular groove is dug, of each valve element is in a range of 1.5-3 mm. The thickness of each improved valve element is thinned to be 6mm from 7 mm before improvement, each valve element bottom directly impacted by exhaust gas is dug with the annular groove to thin the entity, so that the thickness of the remaining wall of the position where the valve element is thinned is in a range of 1.5-3 mm, and elastic deformation of the valve elements under high temperature can be ensured. According to an EGR valve by adoption of the dual valve elements having the new structure, the problem that leakage rate exceeds standard after operation is solved, and the leakage rate can be smaller and smaller even close to 0 after the EGR operates for some time, and the problem that the leakage rate exceeds the standard is thoroughly solved.

The invention discloses a positioning support for a micro drive motor. The positioning support comprises a platy body and a plurality of support bosses, the a through hole is arranged at the center of the platy body, the support bosses projecting from the platy body are used for butting against an outer ring of an external upper spring piece, and each support boss is positioned on the side as same as the platy body. The positioning support is capable of effectively controlling the space between the outer ring of the upper spring piece and the outer edge of a lower spring piece, and accordingly linear drive effect is improved.

The invention discloses an asphalt pavement crack sealing repair method. The asphalt pavement crack sealing repair method comprises milling a damaged pavement to form milled grooves; heating the damaged parts of the damaged pavement through microwaves to dissipating moisture and air out of the inner cracks of the milled grooves, and sufficiently drying the pavement through a steam pressure pump; injecting sealant into crack filling grooves through a crack filling machine, and controlling the height of filling layers to be 0.3 cm lower than the pavement; 3-4 hours later, at a temperature of 170-190 DEG C, uniformly laying SBS (styrene butadiene styrene) modified asphalt onto the surfaces of the milled grooves. The sealant is prepared from raw materials including butyl glycol, n-butyl alcohol, methylacrylic acid, styrene, triethylene glycol dimethacrylate, poly-2, 6-dimethyl-1,4-diphenyl ether, polyvinyl acetate, dimethylethanolamine, alpha, omega-hydroxyl polydimethylsiloxane and nanosilicon dioxide; after being cooled down a normal-temperature or low-temperature state, the sealant can be high in elasticity; one year after the sealant is applied, sealing joints have no crack or falling-off and achieve stable sealing effects.

The invention relates to a device for classifying (1) material being classified, preferably into two fractions, and preferably soil, such as sticky clayish soil, which device is particularly intendedfor use in a quarry and comprises a machine frame (2) and at least two spiral shafts (3) rotatably mounted on said machine frame (2), wherein at least one spiral shaft (3) comprises a core tube (5) with at least one outer screw helix (4), and at least one bearing journal (6). According to the invention, the core tube (5) is mounted elastically relative to the bearing journal (6) by means of at least one elastic bearing means (7).

The invention relates to the field of rubber, and particularly discloses a rubber pipe molding device which comprises a framework, a stepper motor, an extrusion pipe and a core mechanism. A feed pipeis fixed onto the extrusion pipe; the core mechanism comprises an inner rod, a rotary shaft, a liquid inlet pipe, a liquid outlet pipe and a piston, the inner rod can be driven by the stepper motor torotate, an accommodating cavity is arranged in the inner rod, openings are formed in the side walls of the accommodating cavity, elastic sheets are arranged outside the openings and are fixed to theouter wall of the inner rod, first magnets are embedded in the elastic sheets, and second magnets are fixed onto the rotary shaft; the piston is positioned in the accommodating cavity and is in threadfit with the rotary shaft, balls are arranged between the piston and the rotary shaft, a slide groove is formed in the side walls of the accommodating cavity, and a slider is fixed onto the piston; aliquid inlet check valve and a liquid outlet check valve are fixed into the liquid inlet pipe and the liquid outlet pipe, and the liquid inlet pipe and the liquid outlet pipe are communicated with the accommodating cavity. According to the scheme, the rubber pipe molding device has the advantages that tensile force required for pulling rubber pipes can be reduced, and the rubber pipes can be prevented from being dragged to deform.