5results about How to "Control mobility" patented technology

The invention belongs to the technical field of automobile active suspension damping systems, and particularly relates to a mute stiffness valve and a control method thereof. The stiffness valve is switched from an open state to a closed state, and the plunger at least comprises a first stroke section, a second stroke section and a third stroke section; in the first stroke section, first direction current is input into the voice coil motor structure, so that the plunger is in an acceleration state; in the second stroke section, current input to the voice coil motor structure is stopped and / or second-direction current opposite to the first-direction current is input, so that the plunger is in a deceleration state; and in the third stroke section, the current in the first direction is input into the voice coil motor, so that the sealing element between the plunger and the air vent is compressed and seals the air vent. By controlling the current input into the voice coil motor structure, control over the moving direction and speed of the plunger is achieved, on the premise of quick response, the impact force generated when the plunger makes contact with the sealing support is remarkably reduced, and noise generated by impact is restrained.

The utility model relates to the technical field of manufacturing of metal packaging containers, and discloses a hemming wheel device which comprises a sliding seat and a base body wheel, a sleeve is slidably connected to the outer portion of the sliding seat, a clamping mechanism is slidably connected to the outer portion of the sleeve, a coating is coated on the outer surface of the base body wheel, and the base body wheel is arranged on the base body wheel. The coating is in direct contact with an iron can opening to complete hemming operation and is used for enhancing the wear resistance of the base body wheel, the clamping mechanism comprises a circular ring, a rotating rod is fixedly connected to the interior of the circular ring, a connecting rod is rotatably connected to the exterior of the rotating rod, and an arc-shaped clamping plate is fixedly connected to the exterior of the connecting rod. According to the iron can edge curling device, the connecting plate is pulled to drive the circular ring to slide, the circular ring enables the connecting rod to drive the arc-shaped clamping plate to be opened through the rotating rod, the connecting plate is loosened after the iron can is placed, the limiting spring is reset, the arc-shaped clamping plate is pushed to clamp and fix the iron can, the iron can is rapidly and stably clamped, and it can be guaranteed that iron cans of different sizes are kept fixed in the edge curling process.

The application is suitable for the field of connecting pieces, and provides a building assembly type invisible prefabricated connecting piece, which comprises connecting piece one, connecting piece two, connecting piece three and a positioning guide rod; the connecting piece one and the connecting piece two are butted through the positioning guide rod, and a certain space is reserved at the butt joint position of the end faces of the connecting piece one and the connecting piece two; the connecting piece three is slidably arranged in the connecting piece one and the connecting piece two, and the two ends of the connecting piece three are connected with the interiors of the connecting piece one and the connecting piece two respectively; a functional hole for inserting a crowbar into the interior of the connecting piece one and for grouting is formed in the top of the connecting piece one. The application is fast and convenient in production and installation process, does not need a large number of form supports and avoids the use of a large number of steels and the complicated binding process, saves materials and costs, reduces the on-site wet work and shortens the construction period. The equipment structure is simple, and the assembly and installation of the prefabricated beam and the prefabricated column are fast and convenient.

The application relates to the field of bridge deck pavement repair, in particular to a hollow slab beam bridge hinge joint and bridge deck pavement repair device. The device comprises a travelling trolley, the travelling trolley comprises a bottom plate, four corners of the bottom of the bottom plate are fixedly provided with travelling wheels, one end of the top of the bottom plate is fixedly provided with a control handle, the other end of the top of the bottom plate is fixedly provided with a heating tank assembly, the top of the heating tank assembly is provided with a top cover assembly, an asphalt pump is arranged between the heating tank assembly and the control handle, an output end of the asphalt pump is provided with a spout, one end of the spout is arranged on the outside of the bottom plate, an indication assembly is arranged on the outside of the spout, a control button is fixedly arranged on the top of the control handle, and the control button is electrically connected with the asphalt pump. The device can be operated by one operator, the gap can be filled and treated, manpower can be saved, and efficiency can be improved.

The utility model relates to the field of concrete layering pouring, especially concrete vibration layering pouring device, including bottom plate, electric push rod and mould etc. have at least two electric push rods of bottom plate fixed connection, the telescopic portion of all electric push rods is fixedly connected with the mould in common, the mould is equipped with mould cavity. Through first cast concrete in the temporary storage cavity, and through vibration stick one and vibration stick two remove the bubble in the concrete in temporary storage cavity, and then make the concrete that removes the bubble completely change from being in temporary storage cavity to be in mould cavity, make the inside of mould cavity from below to above cast full remove the bubble completely concrete layer by layer, since the thickness of the concrete that each layer cast in the mould cavity is thin, can complete the uniform distribution of aggregate in lower height, help control the movement and settlement of coarse aggregate (such as stone) in each layer, thereby reduce aggregate separation phenomenon.