48results about How to "Enough room to move" patented technology

The invention discloses a micro-accelerometer and a preparation method thereof, belonging to the technical field of processing micro inertia devices. The micro-accelerometer is arranged on a package substrate which is formed by stacking an upper surface plate, a lower surface plate and a plurality of middle substrates, wherein a signal detection circuit of the micro-accelerometer is attached on the upper surface plate; a sensitive element of the micro-accelerometer is embedded in the middle substrates, i.e. the middle substrates with cavities form a frame of the sensitive element; a flexible hanger and a sensitive mass block of the sensitive element are arranged in the cavities, and one end of the flexible hanger is connected with the sensitive element, while the other end is fixed on the frame; metal electrodes are respectively sputtered on the sensitive mass block and the surface of the frame corresponding to the sensitive mass block so as to form a flat plate sensitive capacitor, or a metal piezoresistive thick-film pattern is deposited at a connecting part of the flexible hanger and the inner side surface of the frame so as to form a metal piezoresistive strain gauge. The micro-accelerometer has high sensitivity and high-temperature resistance and can be fused into a whole with a system level package substrate, thus the micro-accelerometer has low processing difficulty and cost.

The invention discloses a steel tube end seal ring and a sealing device, and belongs to the technical field of sealing equipment. The steel tube end seal ring comprises a seal ring body and a supporting block arranged in an annular groove, and a steel tube seal peripheral edge and an end face seal peripheral edge are arranged on the end face of the seal ring body; an arc-shaped supporting groove is formed in the end face of one side of the seal ring body; a convex ring provided with a through groove is arranged on the outer circumferential face of the seal ring body. The sealing device comprises a sealing head and a locating sleeve which are mutually matched, and the steel tube end seal ring is arranged in the sealing device. A supporting ring of the locating sleeve is arranged in a supporting groove of the sealing head in a jacking mode and a gap is reserved. The steel tube end seal ring and the sealing device have the advantages that the pre-sealing link is omitted, the efficiency is improved, and cost is saved; the problem that the seal ring droops is solved, so that a pressure testing head can be designed smaller, and therefore a high-pressure test can be conducted on steel tubes with the diameter phi being larger than six hundred and thirty millimeters; the gap between the supporting groove and the supporting ring guarantees the effect that the seal ring body can be moved in place during pressure exertion, and after pressure is removed, the seal ring body can recover the original shape.

The invention relates to an intra-cavity mounting rack of an inside deviation rectifying device, in particular to a mounting rack for mounting the inside deviation rectifying device in a joint cavity between two pipe joints and enabling the mounting of the inside deviation rectifying device to conform to the requirements of deviation rectifying in a pipe. The intra-cavity mounting rack comprises a rotary foundation support and a rotary beam mounted on the rotary foundation support, the rotary beam is provided with a sliding mounting base, one end of the rotary beam is hinged to the rotary foundation support, and the other end of the rotary beam is connected with a hoisting mechanism. According to the intra-cavity mounting rack, the rotary beam is provided with the sliding mounting base; the problem of mounting the inside deviation rectifying device in the joint cavity is solved, the device mounting process is simplified, the operating risk is lowered, and the working efficiency is improved.

The invention discloses a debris blocking structure of a cutting machine tool. The debris blocking structure of the cutting machine tool comprises a worktable; a blocking cover is installed on the worktable, an opening for workpiece entering and existing is formed in the side edge of the blocking cover, an cavity is formed in the blocking cover, an annular collecting groove is formed in the bottom of the cavity, and the side edge of the collecting groove is connected with the side wall of the worktable; a telescopic arm movably penetrates through the top of the blocking cover and is installed above the worktable, and a cutting wheel is rotatably installed at the tail end of the telescopic arm; the air suction end of the draught fan is connected with the collecting groove; and a filtering net is installed on the collecting groove, and a gap is reserved between the filtering net and the bottom of the collection groove. During cutting, generated debris slides downwards along the inner wall of the metal debris till falling into the annular collecting groove; after cutting is completed, the collecting groove can be cleaned through simple tools such as a broom, meanwhile, the metal debris accumulated in the collection groove can be centrally recycled, and consequently secondary utilization can be achieved.

The invention belongs to the field of constructional engineering and particularly discloses a grouting sleeve and a pre-fabricated part.The grouting sleeve comprises a sleeve body, wherein a grouting opening and an exhaust port are formed in the sleeve body, one end of the sleeve body is open, the other end of the sleeve body serves as a connecting end, steel petals are arranged on the inner wall of the sleeve body, the thickness of the steel petals is gradually increased from the open end to the inside, and the width of the end, close to the connecting end, of each steel petal is greater than that of the end, close to the connecting end, of each steel petal.The arranged steel petals improve the overall rigidity of the sleeve body, the wall thickness of the sleeve body can be appropriately decreased on the premise that the rigidity is met, and materials are saved.In addition, grouted slurry form a locking-fixing structure matched with the sleeve inside and the steel pedals in the sleeve body, and the anchoring reliability of steel bars is remarkably improved.The accurate axial control and radial positioning of the steel bars can be achieved, and the positioning precision between the steel bars and the grouting sleeve can be ensured.

The invention belongs to the technical field of lithium batteries, and particularly relates to a roll coating device for the lithium batteries. The roll coating device for the lithium batteries comprises a liquid containing shell body, a scraper, a coating roller, a charging tray and a back roller. According to the roll coating device for the lithium batteries, a first removing block and a secondremoving block slide up and down, so that on the one hand, the effect that bubbles in slurry gathered at the upper end of a position where the outer circle face of the back roller and the outer circleface of the coating roller are close to each other are extruded is achieved, and on the other hand, the effect that the slurry is vibrated is achieved through movement of the two removing blocks, thebubbles in the vibrated slurry are extremely easy to discharge, and the phenomena that air entrainment exists and a plurality of tiny bubbles are exist on the surface of a coating due to a relativelylarge gap between the coating roller and the back roller and a relatively high coating speed in the coating process can be avoided to a certain extent; and in the sliding process of the bubble removing blocks, through the first removing block and the second removing block which are opposite in movement direction and alternately and sequentially installed in the same number, the stability of the pressure of slurry gathered at the upper ends of the position where the outer circle face of the back roller and the outer circle face of the coating roller are close to each other can be guaranteed, and the uniformity of the coating thickness is guaranteed.

The invention discloses a chipping-blocking mechanism used for metal plate machining. The chipping-blocking mechanism comprises a working table; a shielding cover is installed on the working table, an opening is formed in the side edge of the shielding cover, and a cavity is formed in the shielding cover; a collecting groove is formed at the bottom of the cavity, the side edge of the collecting groove is connected with the side wall of the working table, and a cutting wheel is rotatably installed at the tail end of a telescopic arm; the suction end of a draught fan is connected with a collecting groove, a filter screen is installed on the collecting groove, and a space is reserved between the filter screen and the bottom of the collecting groove; and limiting blocks are installed at the two ends of the working table, sunken portions can be formed in the opposite side walls of the two limiting blocks in the direction away from the center of the working table, and rubber protrusions are installed in the middles of the sunken portions. During cutting, produced metal chippings star downwards sliding in a smooth mode along the inner wall of the cavity till dropping into the annular collecting groove, and after cutting is finished, the collecting groove can be cleared through simple instruments such as a broom; and meanwhile, the metal chippings accumulated in the collecting groove are centrally recovered to achieve secondary using.

The invention belongs to the technical field of medical instruments, and particularly relates to a laser three-dimensional medical image acquisition device. The device comprises a storage box and a supporting box which is slidably connected to the outer wall of the bottom of the storage box, wherein a bottom plate is slidably connected to the inner wall of the bottom of the storage box, connecting columns are fixedly connected to the four corners of the top of the bottom plate, the same top plate is fixedly connected to the top ends of the four connecting columns, and a rotating shaft is rotatably connected to one side of the top of the bottom plate. Accordingly, by means of the storage box, the effect of facilitating storage of a laser three-dimensional image acquisition device body can be achieved, and the storage stability is good; meanwhile, the automatic door opening and closing function and the box door self-locking function are achieved, the convenience, practicability and safety are greatly improved, the automation degree is high, the manual operation steps are reduced, and time and labor are saved; and the use angle and height of the whole device can be adjusted, the adjustment flexibility is high, the precision is high, placement and use in different environments are facilitated, and use is convenient.

The invention discloses a rail trolley wheel set replacing tool which comprises a lifting device, a horizontal moving device and a wheel set tray; the wheel set tray is used for supporting a wheel setto be disassembled and assembled; the horizontal moving device is fixed to the lifting device; and the wheel set tray is fixed to the telescopic end of the horizontal moving device. When the wheel set needs to be disassembled, the height position of the horizontal moving device is adjusted through the lifting device, so that the bearing surface of the wheel set tray is located on the same plane with the lower surface of the wheel set to be disassembled; the wheel set tray is controlled to move towards the direction of the wheel set so as to lift up the wheel set; after a fixing piece on the wheel set is dismounted, a wheel set saddle is moved upwards, so that enough moving space can be ensured; and finally the wheel set is pulled out through the horizontal moving device. When the wheel set is assembled, the wheel set can be assembled through steps opposite to the above steps. Due to the fact that the wheel set is borne by the wheel set tray during disassembly and assembly, the stability of the position of the wheel set can be guaranteed, and then the safety of the disassembly and assembly of the wheel set is improved.

The application provides an MEMS substrate, a display unit containing the same and an intelligent display mirror. The MEMS substrate provided by the present invention is characterized by orderly comprising an array substrate, a raster for reflecting ambient light, an insulating layer, a color film photoresistor and an adjusting raster, wherein the adjusting raster can move, the array substrate is equipped with an MEMS raster drive circuit, and the overlapping area of the adjusting raster and the raster for reflecting ambient light is adjusted and controlled by the drive circuit, thereby realizing a function of MEMS reflective display. The display unit provided by the present invention comprises a packaging substrate packaged on the MEMS substrate, and a metal thin film which is coated on the lower end face of the packaging substrate and is used for reflecting the external ambient light. The display mirror provided by the present invention comprises a plurality of display units in array arrangement. According to the present invention, by utilizing an MEMS technology, the multifunctional application of the mirror and the reflective display is realized, the structure of the display mirror is simplified, and the thickness of the display mirror and the cost are reduced.

The invention discloses a metal scrap recycling mechanism of a machine tool. The metal scrap recycling mechanism comprises a worktable; a shielding cover is mounted on the worktable; an opening allowing a workpiece to enter and go out is formed in the side of the shielding cover; a cavity is formed in the shielding cover; an annular collecting groove is formed in the bottom of the cavity; and the side of the collecting groove is connected with the side wall of the worktable. A telescopic arm movably penetrates through the top of the shielding cover, and a cutting wheel is rotatably arranged at the tail end of the telescopic arm. A filter screen is mounted on the collecting groove, and a gap is reserved between the filter screen and the bottom of the collecting groove. The collecting groove is arranged obliquely in the circumferential direction of the bottom of the cavity, a sliding block matched with the collecting groove is slidably arranged at the end, in the high position, of the filter screen, and traction ropes are connected on the two sides of the sliding block correspondingly. At the time of cutting, produced metal scraps start to slide downward along the inner wall of the cavity until falling into the annular collecting groove, and after cutting is finished, the collecting groove can be cleaned by simple tools such as a broom. Meanwhile, the metal scraps accumulated in the collecting groove are intensively recycled to achieve secondary utilization.

The invention provides a mold cavity adjustment device of an injection machine and an adjustment method thereof. An oil cylinder adjustment mechanism is arranged in an assembling and fixing base and a module on an injection machine movable template, after molds are closed and form a complete mold cavity, the mold cavity is filled with a material, then the oil cylinder adjustment mechanism adjusts and reduces mold cavity thickness so that after mold closing, the plastic has an enough flowing space and can uniformly fill the mold cavity, and then a thin object is cooled and molded after mold cavity thickness adjustment and reduction so that the limitation of thin object molding based on the injection machine is broken through.

The invention belongs to the field of constructional engineering, and particularly discloses a grouting sleeve and a prefabricated member. The grouting sleeve comprises a sleeve body, wherein the sleeve body is provided with a grouting port and an exhaust port; two ends of the sleeve body are open; fixing members are arranged in the middle of an inner cavity of the sleeve body; the inner wall of the sleeve body is provided with steel clacks; the thicknesses of the steel clacks gradually increase from the two ends to the middle of the sleeve body; the widths of the positions, which approach the fixing members, of the steel clacks are larger than the those of positions approaching end parts. The integral rigidity of the sleeve body is increased through the arrangement of the steel clacks of the grouting sleeve. In addition, poured slurry for grouting forms a fastening structure matched with an inner hollow part and the steel clacks of the sleeve in the sleeve body; the anchoring reliability of a steel bar is greatly improved; by using the grouting sleeve and the prefabricated member, the accurate axial control and radial positioning of the steel bar can be realized; the positioning accuracy between the steel bar and the grouting sleeve is guaranteed.

The invention is applicable to the technical field of butanediol production, and provides an intelligent enhanced production system and process of 1, 4-butanediol, the system comprises reaction devices including a first reaction device, a second reaction device and a third reaction device; micro-interface generators comprise a first micro-interface generator and a second micro-interface generatorwhich are respectively positioned at the bottoms of the first reaction device and the second reaction device; a mixing and stirring device comprises a guide rod, a fixed shell, a power shaft and a steering device, the steering device comprises a fixed shaft, a rotating part and a guide wheel fixedly connected with the rotating part, the fixed shaft is connected with the end of the rotating part through an elastic part, a limiting part is arranged on the fixed shell, the rotating part is longer than the fixed shell, and an auxiliary rod is arranged on the rotating part; an intelligent control device comprises a strategy setting unit, a parameter control unit and a model setting unit. Therefore, the reaction efficiency and the working quality can be effectively improved, and the reaction parameters can be intelligently adjusted.