9results about How to "Compact and reasonable design" patented technology

The utility model discloses a roller pin spinning roller structure, which comprises a spinning roller shaft, the spinning roller is arranged on the spinning roller shaft in a sleeving manner; the rolling needles are arranged between the rotating wheel shaft and the rotating wheel, and the rolling needles are sequentially arranged along the periphery of the rotating wheel shaft; the glands are pressed at the two ends of the spinning roller; and the needle bearing is arranged between the gland and the spinning roller. The rolling needle spinning roller structure is simple in structure and reasonable and compact in design, the bearing capacity of the spinning roller structure can be effectively improved, the size of the spinning roller can be effectively reduced under the condition of the same bearing capacity, the service life of the spinning roller can be effectively prolonged, and therefore cost can be effectively saved.

The invention relates to the technical field of medical instruments, in particular to an auxiliary device for neck anesthesia nursing, which comprises an adjusting frame, a head supporting piece is arranged at the top of the front side of the adjusting frame, a chest lifting piece is arranged on the rear side of the adjusting frame, the adjusting frame comprises an adjusting bottom frame, and a neck bracket is arranged at the top of the adjusting bottom frame. By arranging the adjusting frame, the head supporting piece and the chest lifting piece, the dual functions of precise limiting and fixing of the neck of a patient and height self-adaptive adjustment are achieved, the risk caused by shaking of the neck of the patient in the anesthesia nursing process is effectively avoided, and meanwhile the individual requirements of patients of different body types are met through a height adjusting mechanism; besides, a thoracic cavity supporting function is creatively integrated, the thoracic cavity of the patient is stably supported through a mechanical linkage structure, the comfort and safety of the patient in the operation process are further improved, and efficient and reliable auxiliary support is provided for neck anesthesia nursing work in an operating room.

This invention belongs to the field of end-face sealing technology, specifically relating to a combined corrugated groove end-face sealing device consisting of a rotating ring and a stationary ring. The invention includes a rotating ring and a stationary ring that cooperate with each other through sealing end faces. The sealing end faces are respectively provided with corrugated grooves and notched grooves. The ring containing the corrugated groove is a wide ring, and the ring containing the notched groove is a narrow ring. The sealing end face width of the wide ring is greater than that of the narrow ring, and the notched groove is located on the outer ring surface of the narrow ring. The rotation path of the corrugated groove intersects with the cavity of the notched groove. This invention achieves an effective balance between sealing leakage and end-face lubrication, thereby providing continuous and effective lubrication and cooling for the friction pair of the end-face seal.

The invention belongs to the technical field of foldable bicycles, and particularly relates to a folding structure and a foldable bicycle. The device comprises an upper connecting piece; the lower connecting piece and the upper connecting piece are oppositely arranged in the vertical direction, the upper connecting piece and the lower connecting piece are in butt joint and matched to form a containing space, and the upper connecting piece and the lower connecting piece are rotatably connected through a hinge shaft. The locking structure comprises a locking block which is movably arranged in the accommodating space; the trigger assembly is rotatably mounted on the hinge shaft and is in driving connection with the locking block; when the triggering assembly is operated to rotate around the hinge shaft, the locking block can be driven to move in the containing space so that the locking block can be switched between the locking position and the unlocking position. At the locking position, the upper connecting piece and the lower connecting piece are relatively locked by the locking block; and at the unlocking position, the upper connecting piece and the lower connecting piece can rotate relatively. The folding structure is simple in structure, the rotating action of the triggering assembly can be accurately converted into the directional movement of the locking block through a transmission mechanism, and operation is easy and convenient.

This invention discloses a structure with dual-end limiting function, specifically relating to the field of shower head technology. It includes a mounting base with a freely rotatable and anti-detachment rotating sleeve at its bottom. The rotating sleeve has a threaded hole, with a limiting block and a limiting component at each end of the hole. The limiting component includes a sealing plate and a second limiting block that tilts inward towards the threaded spiral structure. A screw is threaded into the threaded hole, with an extension at the top of the screw. A support body rotatably mounted within the mounting base can be linked with the extension via an eccentric shaft-roller, cylindrical spiral rail-pulley, or rack-gear structure. This invention prevents the screw from detaching and avoids axial failure through a dual-limiting structure. The rotating sleeve and screw work together to raise and lower the extension, enabling flexible adjustment of the shower head tilt angle. The rotating sleeve is equipped with ball bearings and anti-slip textures, and the screw, with its special dimensions and thread count design, also features a sliding retainer. This solves the problems of inconvenient adjustment, jamming, and lack of effective limiting in traditional shower head support bases, resulting in smooth adjustment, precise positioning, and safe use.

The utility model discloses a conveying and fixing device of a carbon fiber frame, which comprises at least two working units, the working units are arranged side by side along the left-right direction, each working unit comprises a base, a sliding seat and a rotating seat, the sliding seat is arranged on the base and can slide back and forth relative to the base, the rotating seat is arranged on the sliding seat, and the rotating seat is arranged on the sliding seat and can slide back and forth relative to the base. The rotating seat is arranged on the sliding seat and can rotate leftwards and rightwards relative to the sliding seat, the fixing seat is arranged on the rotating seat, a containing groove for containing a frame in a matched mode is formed in the top end of the fixing seat, the end of the containing groove is provided with an open end opening, and each fixing assembly comprises a fixing pressing block and a fixing driving piece for driving the fixing pressing block to ascend, descend and rotate. According to the conveying and fixing device for the carbon fiber frame, conveying and fixing of the frame are achieved, drilling of the frame in different positions, multiple angles and different hole diameters is achieved in cooperation with drilling equipment, and the whole conveying and fixing device is simple in structure, reasonable and compact in design and convenient to use.

The utility model provides a kind of high-speed permanent magnet motor belongs to motor design technical field, include: motor shell, inside installation stator assembly, stator winding, rotor assembly, motor rotating shaft and bearing, stator assembly, stator assembly is composed of stator core and stator slot, and stator winding is embedded in the groove bottom position of stator slot.The utility model design structure is reasonable and compact, and the structure of long-tooth stator core and stator slot cooperate groove bottom arrangement stator winding releases radial space, so that bearing is embedded installation, shortens bearing span, improves critical speed and mechanical stability;Axial heat dissipation flow passage design realizes directional cooling while optimizing electromagnetic efficiency, solves permanent magnet demagnetization risk;Solid permanent magnet small shaft diameter embedded structure ensures the strength of rotor at the same time, effectively reduces centrifugal load and wind abrasion loss, improves high-speed operation reliability;Make the high power density of motor and ultrahigh speed in compact space obtain synergistic breakthrough.

The application discloses a cup rack lifting structure applied to a cleaning bin or a drying bin, and comprises a driving assembly, a connecting piece and a cup rack. The cup rack is installed on the connecting piece. The driving end of the driving assembly is in transmission connection with the connecting piece, so that the connecting piece is driven to move towards the bin opening direction of the cleaning bin or the drying bin. Through the cooperative operation of the driving assembly, the connecting piece and the cup rack, the lifting function of the cup rack is realized, and the adaptability, convenience, safety and space utilization of the cup rack lifting structure are remarkably improved.

The utility model relates to the field of traditional Chinese medicines, in particular to a traditional Chinese medicine concentration device with a precipitation structure, which comprises a mounting frame, a precipitation bin, a fixing buckle, a propping plate, a connecting buckle, a precipitation frame and a glass frame, the lower end of the mounting frame is buckled and connected with a precipitation frame which is internally provided with a precipitation bin for separating and precipitating traditional Chinese medicines; a plurality of sets of fixing buckles used for disassembling the precipitation frame for internal cleaning are connected to the joint of the precipitation frame and the mounting frame in a buckled mode, an abutting plate used for taking out precipitates in the precipitation bin is connected to the bottom end of the precipitation bin in a buckled mode, and a connecting buckle used for rapidly disassembling the abutting plate is arranged at the center of the outer side of the abutting plate in a penetrating mode; according to the traditional Chinese medicine concentration device with the precipitation structure, sediments generated in the concentration process are stored through the precipitation bin, the sediments are convenient to clean regularly, the temperature is monitored in real time in cooperation with a thermometer and a temperature rod, and the traditional Chinese medicine concentration device with the precipitation structure has the advantages of being simple in structure, convenient to operate and high in practicability. And the heating process is stable and controllable.