107results about How to "Prevent follow-up" patented technology

The invention relates to the technical field of spraying bottles for containing liquid, in particular to a novel detachable and refillable liquid spraying bottle. The whole spraying bottle comprises a bottle body and a bottle bottom which are detachably connected through an integral valve seat. Positioning ribs, a seal groove and concave-convex toothed structures are disposed on the outer wall of the valve seat and connected with the bottle body. Threads are disposed on the outer wall of the valve seat and connected with the bottle bottom. A valve element is inserted in the inner cavity of the valve seat. The inner cavity of the valve seat is matched with the outer contour of the valve element and of an overall asymmetrical structure. The valve element can be inserted into the inner cavity of the valve seat at an only angle. A positioning device is disposed at the top end of the valve element and used for positioning an inner cavity spring. The overall asymmetrical structure of the inner cavity of the valve seat and the valve element is characterized in that one side of a contour line is a circular edge, and the other side thereof is a linear edge with an arc angle. The liquid spraying bottle has the advantages that the liquid spraying bottle is convenient to carry, convenient to demount and clean, good in airtightness and simple in production process, following rotation can be prevented, circulating refilling and repeated using can be achieved, and odor tainting of different gases is avoided.

The invention relates to an anti-falling device for a bolt. The anti-falling device comprises a substrate, a bolt, a fixing frame and a clamping plate, wherein the bolt is connected to the substrate; the fixing frame is fixedly connected with the bolt; the clamping plate is connected with the fixing frame; and the fixing frame and the clamping plate are positioned on both sides of the substrate respectively. According to the device disclosed by the invention, the fixing frame which is fixedly connected with the bolt and the clamping plate which is connected with the fixing frame are arranged on both sides of the substrate, so that the bolt is prevented from falling unexpectedly after a nut falls off.

The invention relates to the technical field of locking devices, and discloses a bolt following rotation preventing device which comprises a sliding plate, a mounting plate and two plate sleeves. The plate sleeves are provided with sleeved connection parts, sleeve holes are formed in the sleeved connection parts, mounting holes and sliding grooves are formed in the mounting plate, the sleeved connection parts are inserted into the mounting holes, fixing pieces are inserted into the sliding grooves, the fixing pieces can slide along the sliding grooves, the fixing pieces are connected with the plate sleeves and the sliding plate, a clamping groove is formed in the sliding plate, and a limiting hole is formed in the position, corresponding to the clamping groove, of the mounting plate. A rotating shaft sequentially penetrates through the clamping groove and the limiting hole, the two ends of the rotating shaft are connected with the sliding plate and the mounting plate correspondingly, the clamping groove is provided with a limiting part and an unloading part which communicate with each other, the unloading part communicate extends towards the two sides of the limiting part, the rotating shaft is provided with an abutting connection part connected with the limiting part, the abutting connection part and the limiting part can be disconnected or connected by driving the rotating shaft to rotate, and the abutting connection part is connected in the unloading part in a sliding manner. According to the technical scheme, the bolt following rotation preventing device can avoid bolt following rotation, and the potential safety hazards that hands are pinched and people are hurt are avoided.