6results about How to "Avoid rotational offset" patented technology

This utility model relates to the field of stainless steel pipe design and discloses a fatigue-resistant stainless steel pipe for oil transportation, including connecting flanges. Each of the two connecting flanges contains a stainless steel pipe body. Two pre-set fixing plates are fixedly connected to the left side of the left connecting flange, and two limiting adjustment rings are provided on the right side of the right connecting flange. The pre-set fixing plates are connected to the limiting adjustment rings via connecting components. A reserved insertion groove is provided inside the left connecting flange, and a clamping component is provided inside the reserved insertion groove. A sealing rubber ring is fixedly connected to the left side of the right connecting flange, and the outer wall of the sealing rubber ring is slidably connected to the inner wall of the reserved insertion groove. This utility model avoids misalignment during connection, achieving a stable connection between the two stainless steel pipes. It is suitable for complex oil transportation conditions such as high pressure and high-frequency vibration, ensuring continuous contact between the rubber ring and the contact surface, effectively preventing leakage of the oil transportation medium, and guaranteeing the sealing performance and safety of the oil transportation process.

The utility model discloses a kind of automatic bending machines facilitating feeding and discharging, belong to metal processing field, including small bending machine body;The small bending machine body is installed with the convenient bending discharging mechanism for carrying out convenient discharging to closed bending after workpiece;The small bending machine body is installed with the workpiece positioning mechanism for carrying out two side positioning to workpiece;The convenient bending discharging mechanism includes bending assembly, discharging opening and closing assembly, pusher assembly and linkage assembly;Small bending machine body, discharging opening and closing assembly, pusher assembly and linkage assembly are connected with bending assembly;Discharging opening and closing assembly and linkage assembly are connected;Pusher assembly and linkage assembly are connected. By the above mode, the utility model can be closed when bending to small workpiece, and the closed workpiece after bending can be conveniently discharged.

This invention discloses a method for constructing a road triangulation structure based on road markings extracted from road laser point clouds, belonging to the field of intelligent transportation and high-precision map construction. The method includes the following steps: First, robustly separating low points on the road surface from high points on non-road surfaces through a local slice reference system and tangential neighborhood soft support test; second, proposing a minimum-area rectangle centerline fitting strategy, utilizing the geometric prior of the marking strips to suppress lateral fitting drift, and constructing a high-precision road skeleton; third, reconstructing the trajectory of curb contour points using a constraint generation method based on the road skeleton, ensuring the parallelism and continuity of edges and lane lines; finally, constructing a semantically meaningful TIN triangulation network through unified diagonal rules. This invention can effectively address point cloud quality fluctuations and ensures strict alignment between the road skeleton and edge facilities through geometric constraints, and implements an automated modeling method based on topological logic, making it suitable for scenarios such as autonomous driving simulation, high-precision map production, and road holographic perception.

The invention provides a transformer with a liquid cooling structure, and relates to the field of transformers. A shell is fixedly arranged at the top of the base, dust screens are fixedly arranged in the two sides of the shell, and a heat absorption assembly is fixedly arranged in the shell; a cooling structure is fixedly arranged between the base and the outer side of the shell, and a dustproof structure is fixedly arranged on the outer side of the cooling structure. An auxiliary mechanism is fixedly arranged at the top of the base, an exhaust assembly is fixedly arranged at the top of the auxiliary mechanism, cooling oil can be supplemented in time through the auxiliary mechanism and the exhaust assembly, and it is ensured that an oil circulation system is always in the optimal working condition; bubbles can be effectively discharged in the circulation process of cooling oil; the heat dissipation efficiency is prevented from being influenced by gas retention, and the problem that timely supplement of cooling oil is difficult to realize due to lack of an automatic oil supplement function is solved; and automatic exhaust is not convenient.

The utility model relates to the field of cleaning equipment, disclose a kind of cleaning equipment connecting head with replaceable cleaning brush, including cleaning brush and connecting head, the circumferential inner wall of cleaning brush is fixedly connected with multiple limit blocks, the circumferential outer wall of connecting head is equipped with multiple limit slots corresponding to limit block position one by one, the circumferential inner wall of cleaning brush is equipped with multiple guide slots, the circumferential outer wall of connecting head is fixedly connected with multiple guide blocks corresponding to guide slot position one by one, the circumferential inner wall of cleaning brush is fixedly connected with multiple elastic buckles.In the utility model, through the cooperation of cleaning brush inner wall guide slot and connecting head outer wall guide block, the accurate butt joint of cleaning brush and connecting head is realized, simultaneously, the clamping structure of L-shaped elastic buckle and clamping groove, the disassembly and assembly of cleaning brush can be completed only by axial push and pull, without rotating multiple turns, even if both hands are stained with stains can be operated, solve the problem of cleaning brush replacement operation cumbersome in prior art.

The utility model discloses a kind of steel welding fixed auxiliary devices, belong to steel processing auxiliary tool technical field, to solve the problem of inconvenient fixation, easy to deviate, influence welding precision when positioning reinforcement and main reinforcement are welded.The device includes the main body plate with upper and lower sliding groove, the first clamping fixed part for clamping main reinforcement and the second clamping fixed part for clamping positioning reinforcement.Two clamping parts are respectively set in corresponding sliding groove, and the two clamping plates are driven by one left and right threaded screw rod with opposite rotation direction.Adjusting screw rod can be rotated, so that the two clamping plates move synchronously towards each other, thereby automatically centering and clamping main reinforcement and positioning reinforcement, positioning accurately, effectively preventing welding deviation, improving welding quality and efficiency.