40results about How to "Restrict relative movement" patented technology

The invention discloses a rolling and sliding bearing with an outer ring as a sleeve. The rolling and sliding bearing is characterized by consisting of the outer ring, cylindrical rollers, sliding blocks of which the number is the same as that of the cylindrical rollers, and an inner ring of which the outer rims of two ends are provided with fixed flanges, wherein the cylindrical rollers and the sliding blocks are positioned in a sliding chute formed between the outer ring and the inner ring; the number of the cylindrical rollers is equal to the number of the sliding blocks, and the cylindrical rollers and the sliding blocks are separated; the diameters of the cylindrical rollers are greater than or equal to the thicknesses of the sliding blocks in a radial direction of the bearing; the axial lengths of the cylindrical rollers are slightly less than the lengths of the sliding blocks in an axial direction of the bearing; and the cylindrical rollers and the sliding blocks are contacted with each other. The relative movement of the inner ring and the outer ring can be well restrained by the fixed flanges of the inner ring and the outer ring, so that the rolling and sliding bearing with the fixed flanges on the inner and outer rings is higher in axial positioning precision than the rolling and sliding bearing without the fixed flanges; furthermore, as the rolling and sliding bearing is a fixed whole before installation and use, the rolling and sliding bearing with the fixed flanges on the inner and outer rings is more convenient to install and is longer in service life than the rolling and sliding bearing without the fixed flanges during use.

The invention provides a shell assembly, a mobile terminal and a mounting method for a camera thereof. The shell assembly comprises a shell, a first decoration part, a stopper, a second decoration part and a cover plate. The shell is equipped with a mounting hole and a positioning hole. The first decoration part is equipped with a first positioning hole and a first through hole corresponding to the mounting hole. The first decoration part and the shell are laminated in the axis direction of the mounting hole. The stopper penetrates the positioning hole and the first positioning hole in sequence and is connected with the first decoration part, so the connection stability between the first decoration part and the shell is enhanced. The stopper is arranged at the side of the shell away from the first decoration element. The second decoration part and the first decoration part are laminated in the axis direction of the first through hole. The second decoration part is equipped with a second through hole corresponding to the first through hole. The second decoration part is arranged at the side of the first decoration part way form the shell. The cover plate and the second decoration part are jointed in the axis direction of the first through hole. The cover plate is arranged at the side of the second decoration part away from the first decoration part. According to the shell assembly, the mobile terminal and the mounting method, the shell and the first decoration part are fixedly connected through the stopper, so the connection of the shell and the first decoration part is relatively stable and firm.

The invention relates to a connecting device for connecting a first component and a second component and a fixing structure thereof. The fixing structure comprises a component and a connecting piece, the component is provided with an arc-shaped groove for accommodating the connecting piece, and the surface of the connecting piece is provided with an elastic fixing part. When the connecting piece is contained in the arc-shaped groove, the elastic fixing part elastically deforms and abuts against the inner side wall of the arc-shaped groove so as to limit relative movement of the connecting piece and the component. The elastic fixing part on the surface of the connecting piece elastically deforms and abuts against the inner side wall of the arc-shaped groove, so that the sliding friction force between the connecting piece and the inner side wall of the arc-shaped groove is increased, relative movement of the connecting piece and the component is limited, the firmness of the connecting piece in the arc-shaped groove is improved, and the attractiveness of furniture is ensured.

The invention discloses a rolling and sliding bearing with an outer ring as a sleeve. The rolling and sliding bearing is characterized by consisting of the outer ring, cylindrical rollers, sliding blocks of which the number is the same as that of the cylindrical rollers, and an inner ring of which the outer rims of two ends are provided with fixed flanges, wherein the cylindrical rollers and the sliding blocks are positioned in a sliding chute formed between the outer ring and the inner ring; the number of the cylindrical rollers is equal to the number of the sliding blocks, and the cylindrical rollers and the sliding blocks are separated; the diameters of the cylindrical rollers are greater than or equal to the thicknesses of the sliding blocks in a radial direction of the bearing; the axial lengths of the cylindrical rollers are slightly less than the lengths of the sliding blocks in an axial direction of the bearing; and the cylindrical rollers and the sliding blocks are contacted with each other. The relative movement of the inner ring and the outer ring can be well restrained by the fixed flanges of the inner ring and the outer ring, so that the rolling and sliding bearing with the fixed flanges on the inner and outer rings is higher in axial positioning precision than the rolling and sliding bearing without the fixed flanges; furthermore, as the rolling and sliding bearing is a fixed whole before installation and use, the rolling and sliding bearing with the fixed flanges on the inner and outer rings is more convenient to install and is longer in service life than the rolling and sliding bearing without the fixed flanges during use.

The invention provides a railway vehicle and a hook buffer device thereof. While curve pass is realized, a connecting structure is simplified, a fit clearance is reduced, and the fitting tightness between a tail hook pin and a pin hole is improved. The hook buffer device comprises a front slave plate base, a rear slave plate base and a bidirectional buffer, wherein the front slave plate base and the rear slave plate base are connected with a vehicle body; the bidirectional buffer is fixedly connected between the front slave plate base and the rear slave plate base and is provided with a carrying body with a buffering function and a connecting component acting on the carrying body; the connecting component is hinged to a vehicle hook through the tail hook pin; the tail hook pin extends up and down; a rotating component is assembled between at least one of the connecting component and the vehicle hook, and the tail hook pin, so that the connecting component and the vehicle hook relatively rotate in a vertical plane; the rotating component is matched with the connecting component and the vehicle hook, so that relative displacement between the connecting component and the vehicle hook in the front-back direction is limited. Due to the fact that the vehicle hook and the connecting component can be relatively fixed in the front-back direction, no matter in an assembling state or various working states, the longitudinal impact caused in a vehicle driving process can be obviously reduced, the usability of the vehicle is improved, and the abrasion is reduced.

The invention discloses a villa on the water, which includes a house part, a courtyard part, and a foundation frame. The house part and the garden part are connected to the lower foundation frame, and the bottom of the foundation frame is connected to a buoyancy device. The house part includes a front wall and a rear wall. , the left wall, the right wall, the front wall, the rear wall, the left wall, and the right wall form a triangular building structure, and the left wall and the right wall are the same with window holes. The back wall is a wall with window holes, and the front wall is a wall with door and window holes; the foundation frame includes main steel beams and secondary steel beams, and the main steel beams swing along the length of the structure The secondary steel beams are evenly arranged in the direction perpendicular to the main steel beams, and the secondary steel beams are connected to the main steel beams by welding; spacing arrangement. The invention has good overall stability and thermal insulation, high strength, uniform buoyancy and high assembly efficiency.

The application relates to a disassembly structure and disassembly method of a brush tray, which includes a brush tray frame, the brush tray frame is fixedly connected with bristles, and includes a fixing piece fixedly connected to the output shaft of the motor, and the fixing piece includes a plurality of A fixed rod fixedly connected to the output shaft of the motor, the fixed rod is fixedly connected with a fixed block, and also includes a connecting mechanism, the connecting mechanism includes a plurality of connecting blocks and fastening components arranged on the brush frame, and the connecting block is set There is a connection port 1 for clamping a fixed block, the fastening assembly includes a fastening ring that is rotatably connected to the brush frame and a plurality of fastening strips that are fixedly connected to the fastening ring, and the fastening ring is sleeved on multiple A connection block, the connection block is provided with connection holes for matching with the fastening strips along both sides of the radial direction of the fastening ring, and the brush plate holder is provided with a locking component for locking the fastening ring from rotating. The application can effectively optimize the stability of the brush plate in use.

The invention discloses a bearing with an inner ring serving as a sleeve piece. The bearing is characterized by consisting of an outer ring (1), a plurality of cylindrical rollers (2), a retainer (3) and the inner ring (4), wherein the cylindrical rollers (2) are arranged in the retainer (3); the retainer (3) is positioned between the outer ring (1) and the inner ring (4); flanges are fixed through inner edge strips at two ends of the outer ring; and the inner ring consists of a flange-free internal thread ring (5), an open spring washer (6), a left flange external thread ring (7) and a right flange external thread ring (8) so as to form an inner ring, of which flanges are fixed through outer edge strips at two ends of the inner ring. Flanges of the inner and outer rings are fixed flanges, relative movement of the inner ring and the outer ring can be better limited, and the axial positioning accuracy is higher. The bearing is more convenient to mount and has longer service life.