33results about How to "Avoid repeated installation" patented technology

An ultra-precise processing integrated platform for a large caliber optical mirror surface solves the problem that processing and detection are not integrated while processing the large caliber optical mirror surface in the conventional optical processing technical field. The platform integrates grinding, detection and milling for processing the large caliber optical mirror surface, and comprises a base, a horizontal moving device, a rotation device, an ultra-precise grinding device, a mirror surface detection device and a milling device, wherein the horizontal moving device drives the rotation device to move to a workpiece mounting position, a grinding position, a surface shape detection position and a milling position in a horizontal direction; a vertical moving device drives a spindle system and a diamond grinding wheel to move up and down in a vertical direction; the spindle system can adjust the inclined angle of the diamond grinding wheel; the diamond grinding wheel has a cambered surface; when in the workpiece mounting position, the rotation device can conduct cambered surface grinding on a workpiece; when in the surface shape detection position, the rotation device can conduct surface shape detection on the workpiece; when in the surface shape detection position, the rotation device can mill the workpiece.

The invention relates to the technical field of underground space construction, and discloses a pipe curtain construction method based on pipe banks. According to the pipe curtain construction method based on the pipe banks, the pipe banks are used as the construction unit and jacked at the same time for constructing a pipe curtain structure, each pipe bank is formed by arranging a set of steel pipes side by side, every two adjacent steel pipes are connected through a connecting component, and the number of the steel pipes in each set is not smaller than two. By adoption of the pipe curtain construction method based on the pipe banks, the construction efficiency is high, the jacking tendency can be controlled highly, jacking deviation can be rectified easily, and the construction precision is high.

The invention discloses a belt storage type crawler travelling conveyor and a travelling method thereof, and belongs to the field of belt conveyors. The conveyor comprises a machine head station, a transition section, a middle section, a belt storage section and a machine tail station, wherein the belt storage section comprises an automatic takeup device, bearing roller sets, belt storage sectionracks and a bend pulley; the automatic takeup device comprises a steel wire rope, takeup pulleys, takeup trolleys, a second rail, a takeup oil cylinder and a takeup winch; the takeup oil cylinder is fixedly connected with the takeup winch and the takeup trolleys through the steel wire rope; and a conveying belt sequentially passes through the machine head station, the transition section, the middle section, the bearing roller sets, the machine tail station, the bend pulley and the takeup rollers, and is connected with a conveying belt of the machine head station in an end-to-end mode. According to the belt storage type crawler travelling conveyor and the travelling method thereof, after the automatic takeup device is additionally arranged, only the takeup winch needs to be started and therequired conveying belt amount needs to be increased or reduced for extension or shortening of each time, so that the whole conveyor can extend or retract, and meanwhile, due to the adoption of a crawler chassis, the working efficiency of travelling of the conveyor is improved.

The invention relates to a stamping device, particularly to a rotary chamfering device for anchor plates. The device is mainly formed by combining a stamping device with a workbench, and the stamping device is a jack. By the aid of the device, multiple holes can be chamfered simultaneously by the aid of one action, a traditional chamfering method is changed, the production efficiency can be improved, meanwhile, repeated mounting and dismounting actions can be avoided, and the labor intensity of workers can be reduced to a certain extent.

The invention relates to the technical field of medical cell cutting equipment, in particular to a diseased cell tissue excision device capable of finely adjusting the cutting area. The device comprises a fixed frame; an upper shell is vertically welded in the middle of the upper end surface of the fixed frame; and an extension rod is vertically welded downwards in the middle of the upper end surface of an inner cavity of the fixed frame. The device has the beneficial effects that by arranging multiple sets of circular ring cutting knives to be connected in a sleeved mode, repeated installation and disassembly of the knives are avoided, pollution to the knives is greatly reduced, meanwhile, quantitative adjustment is achieved, so that the cutting area is controlled, and research variablesare conveniently controlled; through cooperation of plug pins and threaded holes which are symmetrical longitudinally, adjustment of the position of an extrusion block is achieved, tissue cell cuttingis achieved through punching of a hydraulic cylinder, convenient adjustment of the cutting position is achieved, and the cutting efficiency is greatly improved; and meanwhile, through cooperation ofa camera and a display screen, real-time observation of the cutting position is achieved.

The invention discloses a radial azimuth stepless adjustment for a gas drilling manifold, comprising a fixing sub, a fastener, a hanging flange and a rotating sub; the upper end of the rotating sub is in insertion connection and hermetic fit with the fixing sub, the lower end of the rotating sub is provided with an outlet connection end having predetermined fixing angle, the hanging flange sleeves the rotating sub, the fastener is positioned between the lower end of the fixing sub and the hanging flange, the rotating sub is hung to the fastener, the hanging flange is fixedly connected to the lower end of the fixing sub through a screw set, a roller bearing is disposed in an annular space between the fastener and the hanging flange, and a roller bearing is disposed between the fastener and the lower end of the fixing sub. The radial azimuth stepless adjustment enables the direction of a sand discharge line to be adjusted and enables the sand discharge line to be quickly connected out of a well site, repeated mounting and demounting is avoided, workload and work intensity are greatly reduced for workers, mounting period is shortened, worker cost and crane application expenditure are reduced.

The invention discloses a safety construction method for a hoistway elevator, a climbing frame and a construction elevator are arranged in a hoistway, and the construction method comprises the steps that a construction elevator assembly is transported into the hoistway, and a protection device is erected above a construction elevator installation area in the hoistway; a construction elevator is installed in the area below the protection device, and a climbing frame is synchronously constructed above the protection device; and after the construction elevator is assembled, the climbing frame is installed and the bottom of the climbing frame is closed, the supporting scaffolds, the horizontal steel beams and the protection devices are disassembled, and the protection structures on the truss structures provide safety protection for the construction elevator. According to the method, in the construction stage, synchronous construction of a construction elevator and a climbing frame can be guaranteed through an erected protection device; in the operation stage, safety protection is provided through a protection structure on the construction elevator, and the elevator car is prevented from being directly hit by falling objects. By means of the construction method, the problems that an existing safety protection device needs to be installed and dismantled repeatedly, so that procedures are complex, efficiency is low, and safety risks exist can be solved.

The invention discloses an assembling device and method for an oil seal of a casing of an automatic transmission. The assembling device comprises a sleeve, a guiding shaft, the oil seal and an adjusting nut; a thread is arranged on the circumferential surface of the bottom end of the sleeve; the adjusting nut is nested in the sleeve through threads; the top end of the guiding shaft extends into the sleeve from the bottom end of the sleeve; the diameter of the position, close to the bottom end, of the guiding shaft is larger than those of other positions of the guiding shaft; the oil seal is nested in the part, having the largest diameter, of the guiding shaft; and the top end of the oil seal fits the bottom end of the sleeve. According to the assembling device and method, the distance between the bottom end of the adjusting nut and the bottom end of the sleeve can be controlled and is the assembling depth of the oil seal, so that the moving distance of the oil seal is controlled, and the assembling depth of the oil seal can be controlled accurately; and the top end of the oil seal fits the bottom end of the sleeve, so that in the assembling process of the oil seal, the fitting surface is perpendicular to the axial direction all the time, slanting is avoided during assembling of the oil seal, and the assembling effect of the oil seal is guaranteed.

The invention relates to the technical field of correction instruments, and provides an adjustable all-directional embedded tooth traction device which comprises a bonding traction buckle, an elastic traction piece, a traction adjusting piece and a fixing support, one end of the elastic traction piece acts on the bonding traction buckle, the other end of the elastic traction piece acts on the traction adjusting piece, and the fixing support is fixed to the bonding traction buckle. The traction adjusting part is arranged on the fixing support, a traction point adjusting assembly is additionally arranged, the traction point adjusting assembly comprises a track disc, a positioning part and a locking part, the track disc is arranged on the bonding traction buckle, the positioning part is movably arranged on the track disc, the locking part is arranged on the positioning part, and the positioning part is movably arranged on the locking part. The end, close to the bonding traction buckle, of the elastic traction piece is connected with the positioning piece. According to the technical scheme, the problem that the traction point, the traction force and the traction direction are difficult to finely adjust when the embedded tooth is dragged in the prior art is solved.

The invention discloses a concealed type base and a television comprising same. The base comprises a base body, a stand column arranged on the base body, a sleeve, and a locating pin, wherein a locating hole is formed in the stand column; the sleeve is arranged on a back board; the stand column is inserted into the sleeve and moves up and down relative to the sleeve; a guide locating slot is formed in the sleeve; the guide locatingslot is provided with a first clamping position and a second clamping position; the locating pin passes through the guide locating slot, and is inserted into the locating hole; when the locating pin is positioned at the first clamping position, the base is concealed in the back board; and when the locating pin is positioned at the second clamping position, the base extends out of the back board. According to the concealed type base disclosed by the invention, the base can be concealedinto the back board, is pulled out by sliding while needed and is concealedwhile not needed, so that the problems that the materials are wasted and the cost is too high due to the fact that a production tool vertical machine is required to be used in the conventional technology are solved, and the base is prevented from being repeatedly mounted and stored; and moreover, the concealed type base is convenient to package and transport, and is neat and attractive in integral appearance.

The invention discloses an antenna panel assembling structure. The structure comprises a mounting base, an antenna panel body and a second vertical rod, the upper end of the mounting base is fixedly connected with the first vertical rod, the second vertical rod is arranged on the inner side of the first vertical rod, a fixing block is fixedly mounted at the rear end of the outer side of the secondvertical rod, the rear end of the fixing block is connected with a connecting disc, the rear end of the connecting disc is connected with a connecting rod, the lower end of the connecting rod is fixedly connected with a limiting block, a supporting block is fixedly installed on the outer side of the rear side of the first vertical rod, a connecting rod is installed on the outer side of the upperend of the second vertical rod, a spring is arranged on the outer side of the connecting rod, and a connecting block is installed at the top end of the second vertical rod. According to the antenna panel assembling structure, the stability of the antenna panel is enhanced, the signal receiving stability of the antenna during working is further improved, meanwhile, the height is convenient to adjust, the mounting accuracy is improved, repeated mounting and dismounting are avoided, and therefore the working efficiency is improved.

The invention relates to a form plate system of a prefabricated U-shaped beam and relates to the technical field of prefabricated beam form plates. The form plate system of the prefabricated U-shapedbeam comprises an outer from unit, an inner form unit erected over the outer form unit, and end forms arranged at the two ends of the outer form unit respectively. The outer form unit comprises a bottom form arranged on a pedestal and side forms arranged on the two sides of the bottom form respectively, and a movable bottom plate for opening and closing the bottom from is arranged at the part, where the middle section and the end sections of the U-shaped beam are connected, of the bottom form. One end of the movable bottom plate is hinged to the bottom form, the other end of the movable bottomplate is connected with the bottom from through bolts, movable side plates for opening and closing the side forms are arranged at the parts, located at the movable bottom plate, of the side forms, the upper ends of the movable side plates are hinged to the side forms, and the lower ends of the movable side plates are connected with movable side plates through bolts. The form plate system of the prefabricated U-shaped beam has the advantages of being convenient to operate, needless for removing the side forms and high in construction efficiency.