10results about How to "Reduce contact damage" patented technology

The novel linear bearing comprises an outer ring, a retainer and balls, the retainer is installed in the outer ring, a first sealing ring is arranged in the outer ring, a first clamping groove is formed in the outer ring, the side edge of the first sealing ring is connected into the first clamping groove in a clamped mode, a second sealing ring is arranged in the outer ring, and a second clamping groove is formed in the outer ring. The retainer is fixed between the first sealing ring and the second sealing ring, a circulating groove is formed in the side surface of the retainer, the balls are installed in the circulating groove, a step is arranged on the side edge of the outer ring, and the diameter of the step is slightly smaller than that of the outer ring. The step part is inserted into a mounting hole or a mounting groove in a box-type sliding block or equipment, and then the whole outer ring enters, so that the mounting is convenient, the time is saved, the efficiency is improved, the performance is enhanced, the influence of external force is resisted, and the phenomena of outer ring deformation, overall looseness of the linear bearing and the like are avoided.

The invention relates to the technical field of concrete pouring slip form construction, in particular to slip form construction equipment for concrete pouring, which comprises a base, a casing arranged at the top of the base, a moving seat slidably arranged on the casing and two templates arranged below the moving seat. The sliding formwork construction device further comprises a formwork closing and releasing mechanism and a vibration spraying mechanism. The mold closing and demolding mechanism is arranged at the bottom of the movable seat and located on one side of the machine shell. The mold closing and demolding mechanism comprises a rotating disc, a displacement block, a connecting rod and a sliding contact wheel. According to the technical scheme, the sliding contact wheel is driven to make contact with concrete formed through casting, so that when the moving seat ascends to slip a film, the resistance of the moving seat during ascending to slip the film can be reduced. And large resistance generated when the movable seat ascends after the concrete is solidified and formed is effectively avoided.

The utility model provides a kind of convenient mooring structure suitable for water level change, including the mooring bitt fixed on the top of dike, mooring bitt is used to connect first section steel wire rope, the tail end of first section steel wire rope connects metal ring, metal ring is simultaneously connected with intermediate segmented steel wire rope, another end of intermediate segmented steel wire rope is alternately connected with multiple intermediate segmented steel wire ropes by metal ring;When mooring, the ship cable bitt of ship is selectively connected with metal ring by mooring rope, to adapt to water level change.This structure can well adapt to water level change, and then ensure that ship can be conveniently and reliably realized mooring under different water levels, and then ensure the safety and convenience of mooring.

The utility model relates to the technical field of intelligent locks, and discloses a double-electric structure intelligent lock and door, the double-electric structure intelligent lock comprises a first panel assembly, the first panel assembly comprises a first panel body, a first power supply assembly, a second power supply assembly and a cover plate assembly, and the first panel body is provided with a first accommodating groove; the first power supply assembly is used for providing electric energy and is mounted in the first accommodating groove; the second power supply assembly is used for providing electric energy; the cover plate assembly is arranged on the first containing groove in a covering mode, the second power source assembly is installed on the side, close to the first power source assembly, of the cover plate assembly, and the first power source assembly and the second power source assembly are arranged in an overlapped mode in the thickness direction of the first panel body; according to the intelligent lock with the double-electric structure and the door, the problems that the length of the intelligent lock is inconsistent, and the intelligent lock is locally tilted can be solved.

This utility model discloses a miniature ball bearing for a cooling fan, comprising an outer ring, an inner ring, a cage, a dust cover, and rolling elements movably disposed between the outer and inner rings. Both the inner and outer peripheral walls of the outer ring and the inner ring have circumferentially formed grooves for the rolling elements to move. Both ends of the inner peripheral wall of the outer ring have circumferentially formed stepped grooves for installing the dust cover. The connections between the grooves of the inner ring and the outer peripheral wall of the inner ring, and between the grooves of the outer ring and the inner peripheral wall of the outer ring, have chamfered edges. A retaining spring is provided in the stepped groove for an interference fit with the stepped groove. The inner wall of the retaining spring abuts against the outer wall of the dust cover, while the outer peripheral wall of the dust cover has a clearance fit with the inner peripheral wall of the stepped groove. The curvature coefficient of the grooves of the outer ring is greater than that of the grooves of the inner ring. This utility model solves the problems of traditional miniature ball bearings, such as increased bearing ellipticity due to dust cover installation leading to out-of-tolerance bearing ellipticity, and assembly damage during rolling element installation leading to unqualified rolling element vibration during bearing operation.

The present application relates to the technical field of medical devices, in particular to a simple multi-scene applicable guide wire channel device for rapid exchange, comprising a gastrointestinal examination instrument body and a plurality of guide wires, the guide wires are matched with sheaths in outer gaps; the guide wires are respectively slidably matched with first and second sleeves, the first sleeve is fixedly connected with an expansion layer outside for expanding the diameter of the intestine, the expansion layer is communicated with the outside through a trachea; the second sleeve is bonded with a fixing belt outside for binding the gastrointestinal examination instrument body, a separation mechanism for separating the fixing belt is arranged at the connection between the fixing belt and the second sleeve; the gastrointestinal examination instrument body is fixed by hand on the guide wire channel, and the gastrointestinal examination instrument body is conveyed to the expected gastrointestinal position along the guide wire, which has the advantages of low cost and convenient operation.

The application discloses a kind of fiber detection devices, including base assembly, support assembly, airflow traction assembly and collection assembly, base assembly includes bottom plate and fixing piece, fixing piece is set to bottom plate, fixing piece is used to fix the winding drum, so that the axis of winding drum is set with bottom plate at angle;Support assembly includes frame and hair adsorption ring, frame is set to base, hair adsorption ring is detachably set to frame, in the conveying direction of fiber filament, hair adsorption ring is located at the downstream side of fixing piece, and hair adsorption ring is used to adsorb hair in the conveying process of fiber filament;Airflow traction assembly is by airflow traction fiber filament from corresponding winding drum and passes through hair adsorption ring;Collection assembly collects the fiber filament passing through hair adsorption ring.The application of a kind of fiber detection device improves the accuracy, stability and efficiency of fiber detection.

The utility model relates to the technical field of frequency converter copper bar, specifically relates to a kind of frequency converter copper bar connecting fixing device, including bottom plate, and the connecting copper bar is equipped in bottom plate upper end, and two symmetrical connecting seats are fixedly connected in bottom plate upper end, and threaded hole is gouged in connecting seat upper end, and U-shaped connecting plate is equipped in connecting seat upper end, and screw rod is threadedly connected in U-shaped connecting plate upper end, and screw rod is located in threaded hole and is threadedly connected with threaded hole, and connecting copper bar is located between two U-shaped connecting plates, and connecting copper bar includes two side plates in U-shaped connecting plate, and connecting plate is equipped between two side plates, and U-shaped groove is gouged in side plate upper end, and L-shaped connecting plate is fixedly connected in the end of two side plates mutually close, and bottom contact plate is fixedly connected in L-shaped connecting plate outer end, can be realized when replacing connecting copper bar, screw rod is not needed to be unloaded, and the structure in connecting copper bar can be replaced by screw rod loosening, improve the work efficiency of technical personnel.

This invention belongs to the fields of cultural relic protection and computer vision technology. Addressing the problems of low efficiency, poor accuracy, and lack of spatial positioning in traditional methods for detecting defects in ancient city walls, this invention discloses an intelligent detection method and system for surface defects of ancient city walls based on 3D reconstruction. The method includes: processing the texture information of a loaded 3D reconstructed model of the ancient city wall using a multi-strategy texture restoration method; analyzing the model's geometric structure to determine the wall's orientation and dimensional parameters; generating virtual camera positions based on geometric features and a meshed serpentine scanning strategy; rendering RGB and depth images at each virtual camera position; performing defect detection using a YOLO model; mapping the 2D detection results to 3D space to generate 3D defect marker color blocks; and fusing multi-viewpoint results to output the detection results of surface defects on the ancient city wall. This invention achieves efficient, accurate, and automated detection of defects in ancient city walls, providing effective technical support for cultural relic protection.

The utility model discloses a prestress steel cylinder concrete pipe hanging device which comprises a C-shaped supporting piece, the C-shaped supporting piece is composed of two transverse strips and a vertical strip, and the upper end of the transverse strip located on the upper portion is fixedly connected with a hanging lug. The supporting mechanism comprises a T-shaped sliding groove formed in the right side of the lower transverse strip, a T-shaped sliding block capable of sliding left and right is arranged in the T-shaped sliding groove, and the upper end of the T-shaped sliding block is fixedly connected with a supporting strip; and the replacing mechanism is used for replacing the supporting strip, the right side of the transverse strip located on the upper portion is fixedly connected with a stabilizing block, the upper end face of the supporting strip is an arc-shaped face, and a rubber pad is arranged at the upper end of the supporting strip. In the hoisting process of the hoisting device, the contact surface between the supporting part and the inner wall of the steel cylinder concrete pipe can be increased, so that the contact stability is effectively improved, and meanwhile, the situation that a pipe body is damaged during contact is avoided.