6results about How to "Large swing angle" patented technology

This application relates to the technical field of sewing machines, and in particular to a presser foot assembly and an overlock sewing machine. The presser foot assembly includes a presser foot frame and a presser foot plate. The presser foot frame has a presser foot head; the presser foot plate rests upward against the presser foot head and is capable of swinging up and down around the presser foot head. The presser foot plate has a starting state and a working state. When the presser foot plate is in the starting state, it is tilted upward, and the presser foot head is perpendicular to the presser foot plate. When the presser foot plate is in the working state, it swings upward or downward around the presser foot head. When the presser foot plate of this application encounters sequined fabric with a thicker stem, the sequined fabric can pass smoothly under the presser foot plate, preventing the thicker sequined fabric from accumulating at the presser foot plate. This allows the overlock sewing machine using this presser foot assembly to be suitable for overlock sequined fabrics with thicker stems.

The utility model relates to cleaning equipment and a driving assembly, the cleaning equipment comprises the driving assembly, the cleaning assembly and an energy supply assembly, the driving assembly comprises a rotor assembly and a stator assembly, and the rotor assembly comprises a driving shaft and at least one pair of magnetic parts fixed relative to the driving shaft and matched with a stator core body; the magnetic piece at least comprises a first magnet and a second magnet; at least parts of the radial outer ends of the first magnet and the second magnet are bent bodies which have opposite polarities and are matched with the same stator core body, and each bent body is provided with a first arc pointing outwards; the central angle corresponding to the first arc is recorded as beta, the included angle between the center line of the first magnet and the center line of the second magnet in the same magnetic piece is recorded as alpha, and alpha and beta meet the following relation that alpha / beta is larger than 1 and smaller than or equal to 2.22. According to the cleaning equipment provided by the invention, the shape structures of the stator core body and the magnetic part are optimized, so that the flexibility of the cleaning equipment is improved, and the use comfort and the cleaning efficiency of a user are improved.

This application relates to the field of agricultural machinery technology, and in particular provides a boom structure and a boom sprayer. The boom structure is mounted on the frame of the boom sprayer. The boom structure includes: a swing arm, which is hinged to the frame via a first rotating member; a connecting rod assembly, the first end of which is rotatably connected to the swing arm; and an angle sensor, which is fixed to the frame via a fixing member, with its rotating shaft fixedly connected to the second end of the connecting rod assembly opposite to the first end. The connecting rod assembly allows the angle sensor to measure the rotation angle of the swing arm by measuring the rotation angle of the connecting rod assembly. In other words, this application is equivalent to indirectly measuring the rotation angle of the swing arm by measuring the angle of the connecting rod assembly; therefore, a small-range angle sensor is sufficient for measurement.

The utility model relates to the technical field of water conservancy, in particular to an angle-adjustable water conservancy sprayer support which comprises a disc. The angle adjusting assembly comprises a rotating disc rotationally installed on the upper end face of the disc, a rotating connector is fixedly installed on the upper end face of the rotating disc and composed of a fixed seat and a movable seat which are rotationally connected with each other, a clamping head is fixedly installed on the upper end face of the movable seat, a clamping groove is formed in the clamping head, and the angle adjusting assembly is fixedly installed in the clamping groove. Fixing blocks are symmetrically installed on one side of the clamping groove, and a rotating column is rotationally installed between the fixing blocks. Through linkage control of the rotating speed detection element and the electromagnet, intelligent adjustment of the nozzle angle is achieved, when the nozzle range is shortened due to water pressure reduction, the controller automatically enhances the magnetic attraction force of the electromagnet according to the rotating speed change of the rotating column, and the external support is driven to drive the clamping head to increase the swing angle; and the spray head can carry out compensatory irrigation in a wider coverage range.

The utility model relates to cleaning equipment and a driving assembly, the cleaning equipment comprises the driving assembly, the cleaning assembly and an energy supply assembly, the driving assembly comprises a rotor assembly and a stator assembly, and the rotor assembly comprises a driving shaft and at least one pair of magnetic parts fixed relative to the driving shaft and matched with a stator core body; the magnetic piece at least comprises a first magnet and a second magnet; at least parts of the radial outer ends of the first magnet and the second magnet are bent bodies which have opposite polarities and are matched with the same stator core body, and each bent body is provided with a first arc pointing outwards; the stator core body is provided with a second arc pointing outwards; the central angle corresponding to the second arc is marked as theta, the central angle corresponding to the first arc is marked as beta, and theta and beta meet the following relation: theta / beta is greater than or equal to 0.875 and less than or equal to 2.22. According to the cleaning equipment provided by the invention, the shape structures of the stator core body and the magnetic part are optimized, so that the flexibility of the cleaning equipment is improved, and the use comfort and the cleaning efficiency of a user are improved.

A small swing angle switch, comprising a panel, a pressing plate, a knob assembly, a moving contact and a stationary contact, the panel is rotationally arranged on the pressing plate, the knob assembly comprises a knob, the pressing plate is provided with a mounting cavity, the knob is rotationally arranged in the mounting cavity, the switch further comprises a sliding plate which is slidingly arranged on the pressing plate, the sliding plate can slide between a first position and a second position, the panel and the sliding plate are drivingly matched, the sliding plate is connected with the knob, and the pressing plate, the sliding plate and the panel are sequentially arranged; the sliding plate comprises a first driving arm and a second driving arm which are arranged at intervals, the knob assembly comprises a first driven arm and a second driven arm which are located on both sides of the knob, the sliding plate can slide under the drive of the panel, the first driven arm is driven through the first driving arm or the second driven arm is driven through the second driving arm, so as to drive the knob to rotate, the knob assembly can drive the moving contact to contact or separate from the stationary contact, through the arrangement of the sliding plate and the driving arm on the sliding plate, the sliding plate slides with less displacement, and the panel swings with a smaller angle.