6results about How to "Not easy to remove" patented technology

This invention discloses a welding positioning device and its forming method for training missiles. The welding positioning device includes: a missile body welding fixture, a pouring fixture, a tail fin welding fixture, and two centers. Each of the two centers consists of a frustum and a round rod coaxially fixed to the large-diameter end of the frustum. The two centers are respectively used to hold the inner hole of the missile body's central tube and the positioning sleeve. The missile body welding fixture is used to weld and position the missile head and cylindrical section, and the missile head and mounting sleeve. The pouring fixture is used for pouring and forming concrete inside the conical section of the missile body. The tail fin welding fixture is used to weld and position the tail fin and the conical section, and to ensure the relative angle between the tail fin blades and the positional relationship between the blades and the missile body axis. This invention can ensure the welding quality and welding accuracy of the training missile, thereby ensuring coaxiality, symmetry, and straightness.

The utility model provides a human body detection device, which comprises a detection main body and a mounting part, and the mounting part is connected to the detection main body. Wherein the mounting part comprises a first side wall, an abutting structure and at least two elastic arms, and the abutting structure protrudes out of the first side wall; the elastic arm extends out based on the first side wall, and the elastic arm is configured to be an elastic sheet. The human body detection device provided by the utility model is simple and convenient in installation process and is safer.

The utility model discloses a spherical thermal spraying nozzle of derusting equipment, and relates to the field of spraying and derusting. The spherical thermal spraying nozzle comprises a spraying pipe and a spraying head, the spraying head is installed at the end of one side of the spraying pipe, an adjusting unit is arranged on the spraying pipe and used for adjusting the spraying range and the spraying strength of the spraying nozzle, and the adjusting unit comprises a sealing sleeve ring, a sealing sleeve ring and a sealing sleeve ring, the sealing sleeve ring movably slides on the spraying pipe and is used for adjusting the amount of air entering the spraying pipe; the sleeve is rotationally connected with the sealing lantern ring and used for driving the sealing lantern ring to slide on the spray pipe; and the rotating piece is fixedly connected with the sleeve and is used for driving the sleeve to rotate. According to the spherical thermal spraying nozzle, by arranging the replaceable spray head and the adjusting unit, the spraying range and the spraying strength of the nozzle can be correspondingly adjusted according to the rust thickness and the rust range of an object, and the practical flexibility of the nozzle is improved.

The invention relates to the technical field of array antennas, in particular to a hidden 4G / 5G / WiFi hybrid array antenna, which mainly comprises a lower shell, an upper shell mounted on the top surface of the lower shell, mounting shells arranged on two sides of the lower shell, a plurality of baffles mounted on the inner walls of the mounting shells, and a connecting mechanism arranged in the lower shell and comprising an aggregation mainboard positioned in the lower shell, the fixing mechanism is arranged above the lower shell, and the locking mechanisms are arranged on the two sides of the lower shell. A pull block is pulled to drive a clamping column to move, the clamping column drives a moving sleeve to move, the moving sleeve extrudes a second elastic piece, after the clamping column moves out of a clamping hole, a mounting shell is pulled, then the mounting shell can be taken down from a first limiting frame and a second limiting frame, a lower shell is pressed, an upper shell is pulled, and the upper shell drives the clamping block to move out of the inner wall of a groove body. Therefore, the upper shell and the lower shell are separated, internal components can be maintained, the operation is convenient, the time spent on disassembly is less, and the maintenance efficiency is improved.

The utility model relates to a modified plastic particle anti-caking surface treatment mechanism in the technical field of modified plastic particles, which comprises a treatment cylinder, the upper end of the treatment cylinder is fixedly connected with a cylinder cover through a bolt, the upper end of the cylinder cover is fixedly connected with a motor, and the output end of the motor is fixedly connected with an air pump; the motor is started, the output end of the motor drives the air pump, the connecting pipe, the stirring pipe and the jet head to stir the modified plastic particles in the treatment barrel, the modified plastic particles are not prone to caking, or the caked modified plastic particles are scattered, meanwhile, the air pump can be started, the air outlet end of the air pump inflates the connecting pipe, then the air enters the stirring pipe, and the modified plastic particles are stirred in the stirring pipe. According to the modified plastic particle blowing device, the modified plastic particles are blown out from the air spraying head, so that the caking possibility of the modified plastic particles can be further reduced, the caked modified plastic particles are quickly dispersed, and the wet modified plastic particles can be blow-dried so as to be quickly dried.

The preservation box comprises a box body, a box cover and a preservative film covering adhesive tape, the top of the box body extends outwards to form a widened top edge, the widened top edge is provided with an annular bayonet at the bottom outside the box body, the upper surface of the widened top edge is provided with an annular plug groove, and the annular plug groove is communicated with the box body. The preservative film covering rubber strip comprises an annular rubber plug and an annular rubber mat, the annular rubber plug is plugged into the annular plug groove and extrudes the preservative film into the annular plug groove, soft connecting clamping strips are arranged on the four edges of the box cover, a circle of protruding clamping strips are arranged on the lower surface of the box cover and just clamped on the inner wall of the top of the box body, and the inner wall of the box cover is provided with a sealing strip. The clamping hook on the flexible connection clamping strip is clamped in the annular bayonet, and an air leakage piece is arranged on the box cover. A layer of loose preservative film is laid on the box body, after the box cover is covered, the box body can be effectively extruded and sealed, the preservative film is not easy to loosen and pull out, and soup only adheres to the preservative film and does not adhere to the box cover and a preservative film covering adhesive tape.