5 results about "Neck parts" patented technology

The present disclosure relates to a cleaning handle which can be conveniently operated, comprising a water delivery pipe, a water suction pipe, a cleaning head and a hand-held body; the hand-held body comprises a hand-held part, a bent neck part and a connecting part, the connecting part and the hand-held part have an operation angle therebetween, the cleaning head extends forward along the axis of the connecting part, the cleaning head comprises a head body and a nozzle, the head body is a flat structure with an inner cavity, the nozzle is arranged in the head body, the water delivery pipe comprises an external connecting pipe, a control valve pipe, an internal water delivery branch pipe and a water delivery flexible pipe, and the water suction pipe comprises a joint pipe, an internal water suction branch pipe and a water suction flexible pipe. The cleaning handle has a simple and concise structure, conforms to the ergonomic design, the rear-end pipeline is flexible, and flexible movement and rotation during operation are facilitated; the terminal sections of the water delivery pipe and the water suction pipe are internally arranged in the hand-held shell, the cleaning handle realizes integrated suction, does not hurt the hand, the appearance meets the aesthetic design, and operation is flexible, convenient, labor-saving.

A system, cone crusher and its main shaft that includes an interference fit section for supporting a crusher head. The interference fit section has a nominal interference fit diameter Dif; a bottom shaft section extending between a bottom end of the main shaft and the interference fit section, and having a bottom part and a neck part. The bottom part has a bottom part length Lbp and a bottom part diameter Dbp that is constant below the neck part on at least 50% of the bottom part length Lbp. The neck part has a neck part diameter growing towards the interference fit section. The main shaft has a main shaft length Lms. Lms1.3 / Dif is at most 40 mm1.3. Dbp1.421 / Dif is at most 9.0 mm0.421.

The present application relates to a kind of anti-collision human body protection device in personal safety protection field, the support part made of hard material supports a space that can accommodate human body, the outside can resist the impact of other small vehicles or road to a certain extent or the rolling of its wheels, the connecting piece and connecting net between support part, while reducing the weight of the device also prevent the protruding object from causing harm to human body.When the vehicle collides, the neck part inside the head protection device can prevent the neck from being injured, the movable connecting part and opening and closing part on the support part make it convenient for people to wear quickly when traveling, when the body protection device is connected with the vehicle frame, the body does not increase any weight, and can protect the life safety of the rider, the balance device between the body protection device and the vehicle keeps balance, when the body protection device is movably connected to the shock-absorbing saddle, it can prevent the vehicle from causing injury to the internal organs of the human body when colliding.

This utility model discloses an expansion bolt inverted necking mechanism, comprising: a movable component having a working chamber, the inner wall of which is provided with a driving part; an installation part, at least partially disposed in the working chamber, for installing a workpiece to be processed; and a necking component, at least partially disposed in the working chamber, comprising at least two necking bodies, the outer wall of which is at least partially provided with a driven part that cooperates with the driving part, the necking bodies being at least partially located on both sides of the workpiece to be processed; the movable component moves upward, the driving part abuts against the driven part, causing the necking bodies to move inward and act on the workpiece to achieve necking. This utility model has a simple structure. By controlling the action of the lead screw through a drive motor, the up and down movement of the connecting part is controlled to achieve the up and down movement of the movable component, thereby controlling the necking parts to tighten inward to achieve the necking of the bolt.