5results about How to "Small movement gap" patented technology

The utility model relates to the field of spiral transmission, in particular to a spiral anti-backlash sleeve, a transmission assembly and a solar device. The spiral anti-backlash sleeve comprises a first sleeve body and a second sleeve body which are coaxially arranged, threads with the consistent thread pitch are arranged on the circumferential faces of the first sleeve body and the second sleeve body, the first sleeve body is provided with a first guide rail part, the second sleeve body is provided with a second guide rail part, and an elastic piece is arranged between the first sleeve body and the second sleeve body; the bearing and guiding piece comprises at least one connecting position used for being connected with an external driving component; the first sleeve and the second sleeve of the guide bearing piece are movably connected; the device further comprises an anti-disengaging part which is fixedly connected with the bearing and guiding piece and used for limiting the movement range of the first sleeve and the second sleeve. The screw drive assembly is provided according to the drive sleeve. Finally, the solar device is provided according to the spiral transmission assembly. The spiral spline has the beneficial effects that the spiral transmission stability is improved while the transmission gap of the spiral spline is reduced.

The present application relates to a kind of accompanying turnover assembly and conveying mechanism with the assembly, it relates to conveying equipment technical field, accompanying turnover assembly includes turnover guide base and turnover piece, base is provided with the cross broken line type guide groove of positive slope section, reverse slope section, turnover piece is provided with the guide pin of central symmetry arrangement, guide pin and guide groove are gapless sliding fit, rely on the spatial trajectory constraint of guide groove, turnover piece is limited driving synchronous rotation in linear conveying process by groove wall, conveying mechanism connects into annular chain body by connecting mechanism to multiple turnover pieces, and supporting plate linkage opening and closing of two groups of material is realized by matched connecting rod gear meshing structure.The present application discards independent rotating driving element, and pure mechanical groove direction is realized accompanying synchronous turnover, structure is simple and compact, action linkage precision is high, can change turnover parameter by adjusting guide groove line type, is applicable to automatic turnover moulding condition in the conveying process of various workpieces.

The invention provides a large vehicle-mounted antenna lifting platform, and belongs to the technical field of antenna lifting platforms. Comprising a carrying table and a tower body, the tower body is arranged above the carrying table, the tower body is formed by sleeving a main tower, an auxiliary tower and a plurality of sub-towers from outside to inside, a lodging device is arranged at the top of the carrying table, and the telescopic end of the lodging device is hinged to the main tower to drive the tower body to rotate to be in a vertical or horizontal state above the carrying table; the lifting mechanism is used for driving the tower body to stretch out and draw back, and the lifting mechanism is connected with the main tower; and the outer side of the main tower is fixedly connected with a winding device. The sliding mechanism composed of the rail and the sliding block is arranged among the main tower, the auxiliary tower and the sub-tower to replace a guide piece of a traditional U-shaped pulley, when the tower body stretches out and draws back, the rail slides on the inner side of the sliding block, lateral constraint can be provided for stretching out and drawing back of the tower body, the movement gap can be reduced, and the movement efficiency is improved. And transverse shaking of the tower body under the action of a load or wind power can be inhibited, so that the stability of the antenna working platform is ensured.

The utility model discloses an outdoor mobile power supply with accomodate formula protection structure belongs to outdoor mobile power supply technical field, including power supply body, the downside of power supply body is provided with the bottom plate, the upside of bottom plate is provided with the protection shell, the upside of protection shell is provided with the top plate, is provided with the corrugated folding board between top plate and bottom plate, one side of corrugated folding board is provided with the lug, one side of corrugated folding board is provided with two tension springs of parallel symmetry, and one end of tension spring is connected in the upside of bottom plate, and the upside of top plate is provided with the limiting assembly for the limiting of corrugated folding board, the utility model discloses, through bottom plate, protection shell and top plate build firm support frame, the flexible switching of protection structure is realized to the collapsible characteristic of corrugated folding board, forms the encircling type protective barrier when unfolding, effectively resists outdoor knock, impact and other external force damage.

The utility model relates to the field of screw drive, in particular to a screw sleeve, a screw drive assembly and a solar device. The spiral sleeve comprises a first sleeve body, a second sleeve body and an elastic piece, the first sleeve body and the second sleeve body are coaxially arranged, threads with the consistent thread pitch are arranged on the circumferential face of the first sleeve body and the circumferential face of the second sleeve body, and the elastic piece is arranged between the first sleeve body and the second sleeve body. The spiral sleeve further comprises at least one limiting piece, the limiting piece is provided with a connecting position used for being connected with an external driving component, the first sleeve is provided with a first limiting part matched with the limiting piece, and the first limiting part does not penetrate through the first sleeve. The second sleeve is provided with a second limiting part matched with the limiting piece, and the second limiting part does not penetrate through the second sleeve; the limiting piece can abut against the first limiting part or the second limiting part. The spiral transmission assembly is provided according to the spiral sleeve. Finally, the solar device is provided according to the spiral transmission assembly. The spiral spline has the beneficial effects that the integration is improved while the transmission gap of the spiral spline is reduced.