7results about How to "Guaranteed angle" patented technology

The utility model relates to total station technical field especially convenient to carry's total station. Including pedestal, the pedestal sets up U -shaped platform body structure, the sliding side plate is set up in the both sides of pedestal, and the organism is rotatably connected between the sliding side plate, the both sides of pedestal respectively fixedly set up are a pair of sliding groove seat, the buffer board is slidably connected between the sliding groove seat, the screw hole is set up in the sliding groove seat bottom, and the screw hole is screw thread connection has the limit rod, the connecting block that the limit rod rotates into is fixedly connected in the sliding side plate inboard, and the slot that the connecting block moves up and down is set up in the pedestal inboard. The utility model solves the technical problem that: in the prior art, total station lens is vulnerable to damage in the transportation process, and the portability is poor, and the precision and the use convenience are affected.

This utility model discloses an upper limb exoskeleton, relating to the field of industrial assistive device structural design technology. The upper limb exoskeleton includes: a shoulder restraint, a waist restraint, an upper arm fixation, a shoulder rotation mechanism, and an assist mechanism. The lower side of the shoulder restraint is connected to the waist restraint, and an assist mechanism is provided below the shoulder restraint. The lower end of the assist mechanism is fixedly connected to the waist restraint, and the upper side of the assist mechanism is fixedly connected to the shoulder rotation mechanism, which is connected to the upper arm fixation. This upper limb exoskeleton provides support and fixation for the user's upper body through the shoulder and waist restraints. To achieve a lightweight design, assist mechanisms are provided on both sides of the shoulder restraint. The rotation of the shoulder rotation mechanism causes the internal tension springs of the assist mechanism to elastically deform and return to their original position, providing mechanical assistance for shoulder movement and ensuring the stability of the assist mechanism. It is adaptable to users of different body types, ensuring flexible movement with multiple degrees of freedom.

The utility model provides a kind of double-arrow-shaped metamaterial corrugated strip multi-step semi-automated forming platform, the utility model places initial rectangular corrugated strip in forming area first, through the folding mechanism and pressure block propulsion mechanism with spatial phase difference distribution characteristics, combined with multistage progressive extrusion path planning strategy, realize double-arrow-shaped metamaterial corrugated strip layer-by-layer cumulative forming under the dynamic load exerted by electric control system, and the forming angle and precision of material after forming are guaranteed by fine adjustment sliding table and screw clamp, after forming is completed, pressure maintaining treatment is carried out by the pressure maintaining force of electric cylinder, material springback is reduced, and finally high-precision double-arrow-shaped metamaterial corrugated strip is obtained.

This utility model discloses an escape-proof structure for crab breeding ponds, relating to the field of aquaculture technology. It includes a base, a protective rotating mechanism, and a protective mechanism. The base is semi-cylindrical in the middle and semi-circular at both ends. The protective rotating mechanism is fixedly connected to the lower center of the protective mechanism and positioned in the middle of the base. The length of the entire structure is customized according to the side length of the breeding pond to ensure the long plate covers the pond edge. Manually rotating the protective rotating mechanism causes the base plate to move in a fan-shaped motion, with the semi-toothed bolts at both ends sliding in corresponding arc-shaped grooves. When the connecting plate rotates to a certain angle, under the action of gravity, the T-shaped rail begins to slide in the T-shaped groove, causing the lower edge of the long plate to gradually approach the edge of the breeding pond. Continuing to rotate until the angle between the long plate and the toothed edge is large, and with the long plate surface smooth, ensures that crabs cannot climb over the long plate, thus achieving the purpose of preventing escape.

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 discloses gypsum board anti -cracking structure ceiling, its characterized in that, including lamp pool structure, including galvanized angle and aluminium square tube, the galvanized angle is equipped below building floor, the galvanized angle is linked with building floor through bolt, high -strength gypsum board sets up in the lower extreme of galvanized angle, high -strength gypsum board is linked with lamp pool structure through self -drilling screw, and the periphery of high -strength gypsum board is equipped with aluminium square tube, and the inside of aluminium square tube is equipped with square tube inner groove, and square tube inner groove installs L type link piece inside, and L type link piece and aluminium square tube are chamfered joint, and the lower extreme of aluminium square tube is equipped with close -mouthed groove, and ordinary gypsum board is inserted with aluminium square tube through close -mouthed groove and connects. The utility model discloses a galvanized angle as the base layer framework of lamp pool structure, utilizes the chamfered joint of aluminium square tube and L type link piece of closed rectangular structure design in the corner area, guarantees the angle invariability and stable connection of corner area, solves the cracking problem of traditional wood because of environmental humidity change, improves the durability and the aesthetic degree of ceiling decoration.

This invention provides a radar radome for sealing a radar antenna array. The radar antenna array is disposed on an antenna base. The radar radome includes: a radome body connected to the antenna base and covering the radar antenna array to form a cavity sealing the radar antenna array, with the inner surface of the radome body facing the radar antenna array; a groove recessed from the inner surface, the position of which corresponds to the position of the radar antenna array to increase the volume of the cavity corresponding to the radar antenna array; and a metallized component embedded from the inner surface into the radome body and located outside the groove in the horizontal direction to extend the beamwidth of the radar antenna array in the horizontal direction.