51results about How to "Fixed will not affect" patented technology

The invention relates to a culture method for plant seedlings. The plant seedlings are cultured by a ventilated root division culture device, the side surfaces of two culture bowls of the device are in butt joint, a cover plate and a culture plate are arranged on the two culture bowls, culture holes are formed in the culture plate, and vent holes are formed in the two sides of the culture holes. The culture method comprises the followings steps: the plant seedlings of 3 days are taken and cultured in a Hoagland's nutrient solution with the concentration of 50 percent for 2 days then in a Hoagland's nutrient solution with the concentration of 100 percent for 12 days, the plant seedlings growing consistently are taken, the stems of the plant seedlings are wrapped by nutrient cotton and fixed in the culture holes of the culture plate, the roots of the plant seedlings are divided into a group A and a group B, the group A is put into the culture bowl containing the Hoagland's nutrient solution, and the group B is put into the culture bowl containing a nutritional deficiency nutrient solution; the pH values of the nutrient solutions are regulated to 6 at 8 o'clock in the morning and 15 o'clock in the afternoon; the nutrient solutions are changed every other three days; and after 4-12 days, the plant seedlings are taken out. The operation is simple, and the personal errors are reduced, so that the research result is more accurate, the culture time is saved, and the working efficiency is improved.

The invention discloses a culture method for rice seedlings. The rice seedlings are cultured by using a split root culture device; the side faces of two culture bowls of the device are butted; a cover plate and a cultivation plate are arranged above the culture bowls; the cultivation plate is provided with culture holes; the culture method comprises the following steps of: culturing 3-day rice seedlings in kimura nutrient solution with concentration of 50 percent for 2 days; replacing the kimura nutrient solution with the kimura nutrient solution with concentration of 100 percent for 12 days;taking consistently grown seedlings and wrapping stem base parts by using culture cotton; fixing in the culture holes of the cultivation plate; grouping rice seedling roots into equal groups A and B,wherein the group A is placed in the culture bowl containing the kimura nutrient solution, and the group B is placed in the culture bowl containing the culture solution of element deficient; adjusting the pH of the culture solution to 6.0 from 8 a.m. to 15 p.m. each day; and replacing the culture solution after culturing for 3 days, and after culturing to 4-12 days, taking the stems and leaves ofthe rice seedlings, the group A of cultured rice seedling roots and the group B of cultured rice seedling roots. The culture method is easy to operate; the personal error is avoided; the culture timeis saved; and the working efficiency is increased.

The invention relates to the technical field of glass polishing, in particular to a special-shaped glass bevel edge polishing process processing system. The special-shaped glass bevel edge polishing process processing system comprises a support frame, a fixing sleeve, an air suction structure, a first driving structure, a second driving structure, a third driving structure, a polishing structure,an adsorption structure and a blanking structure. A plurality of air cylinders are fixed inside the fixing sleeve. The ends, away from the fixing sleeve, of the air cylinders are provided with circular fixing discs. Special-shaped glass on the adsorption structure can be pushed out through the pushing effect of the air cylinders. The contact area of the circular fixing discs and the glass can be increased, so that the glass is not broken after being pushed in the pushing process; and because sponge pads are connected to the top ends of the fixing discs in a gluing mode and can play a bufferingrole during pushing, the glass is prevented from being broken when being pushed. The top end of the fixing sleeve is provided with a funnel-shaped suction disk, and the funnel-shaped suction disk canfirmly adsorb the glass without influencing bevel edge polishing of the glass. A rubber ring at the top end of the suction disk can increase the sealing property between the suction disk and the glass. A filter screen is arranged inside the suction disk and can prevent sundries from being sucked into a vacuum pump.

The invention discloses a sound absorption wall, which comprises an inner wall, alkali-free glass sound absorption cotton, metal acoustical boards and keels, wherein embedded elements are arranged in the inner wall; the keels are welded on the embedded elements; the metal acoustical boards are fixed on the keels through screw bolts and screw nuts; and a position between the inner wall and the metal acoustical boards is filled with the alkali-free glass sound absorption cotton. The metal acoustical board perforation rate of the sound absorption wall can reach 40 percent or above. Compared with the prior art, the sound absorption wall has the advantages that the sound absorption efficiency is greatly improved; the structural stability is very good; deformation is avoided; the service life is long; the metal sound absorption wall achieves a good fireproof effect, is nonflammable and has high sound absorption efficiency; the installing and fixing mode of the metal acoustical boards is simple; the single-piece fixation of the metal acoustical boards is realized; and the fixation of other metal acoustical boards cannot be influenced by the mounting or the dismounting of any one metal acoustical board.

The invention discloses an efficient circular board grinding device comprising a worktable, a slide rail is arranged at the upper end of the interior of a protection cover, a first telescopic device is arranged on the slide rail, a motor frame is arranged at the lower end of the first telescopic device, a first motor is arranged on the motor frame, a rotating seat is arranged at the output end ofthe first motor, and third telescopic devices are arranged symmetrically on the left and right of the rotating seat; connecting rods are arranged on the lower sides of the outer ends of the third telescopic devices, the lower ends of the connecting rods are provided with U-shaped frames, the U-shaped frames are internally provided with installation seats, the lower sides of the installation seatsare internally provided with second motors in an embedded mode, and polishing plates are arranged at the output ends of the second motors; and the lower ends of the front and rear sides of the installation seats are connected with the U-shaped frames through rotating shafts, the upper ends of the installation seats are provided with fixed through holes, each U-shaped frame is provided with two limiting holes, the limiting holes are provided with fixing bolts, and the installation seats are connected with the U-shaped frames through the cooperation of the fixing bolts and the fixed through holes. The efficient circular board grinding device is simple in structure, convenient to use, and high in grinding efficiency, and the work difficulty is reduced.

The invention belongs to the technical field of cultural media and particularly relates to cultural medial book special truck-loading equipment so as to achieve the technical effects that manpower and time can be saved, books are not likely to be damaged, and economic losses can be reduced. In order to achieve the technical effects, the cultural medial book special truck-loading equipment provided by the invention comprises a bottom plate, vehicle wheels, a lifting mechanism, U-shaped plates, wheels, a carrying plate, a hanging ring and the like. The vehicle wheels are rotatably mounted at the bottom of the bottom plate in bilateral symmetry. The lifting mechanism is arranged on the right side of the top of the bottom plate. The U-shaped plates are connected to a lifting component of the lifting mechanism. The U-shaped plates are arranged horizontally. The carrying plate is horizontally arranged over the U-shaped plates. The wheels are rotatably mounted at the bottom of the carrying plate at equal intervals. The cultural medial book special truck-loading equipment can prevent books from falling in the truck-loading process of the books so as to protect the books against damage, and truck-loading is convenient.

The invention belongs to the field of entertaining equipment and particularly relates to a keel-type intelligent fish catching apparatus, comprising a pond, a base, an attracting waterway, a water collecting pit, a fish collecting pit and a keel-type water conveyer; all the attracting waterway, the water collecting pit and the keel-type water conveyer are arranged on the base; the base is arrangedon the pond; one end of the attracting waterway is communicated with the water collecting pit; the other end of the attracting waterway is communicated with the fish collecting pit; the fish collecting pit is communicated with the pond; the keel-type water conveyer is used for conveying water in the pond to the water collecting pit. The keel-type intelligent fish catching apparatus is suitable for catching fishes by taking advantage of the habit that fishes are upstream, can provide more reactional enjoyment to tourists, can bring new experience to people on catching means, and can help develop the intelligence and improve people's interest in life.

A spiral gear machining mechanism used during machining of a blank (85) comprises a base (3), a rotatable inner threaded part (1), an outer threaded part (2) and a cylindrical workpiece bearing part (8). The rotatable inner threaded part (1) comprises an upper cylinder (11) and a lower cavity (12). The lower cavity (12) is connected to the base (3) in a circumferential rotatable and axial fixed manner. The outer threaded part (2) is cylindrical. The outer threads on the outer circumferential surface are connected with the inner threads in the upper cylinder (11) in a matched manner. A cavity (31) is arranged in the base (3) and provided with a top wall (32).

Disclosed is a sewer pipeline well with a safety fall-proof measure. The sewer pipeline well comprises a sewer pipeline well body, and the sewer pipeline well body comprises an underground well fall-proof safety cage, a well cover, a well frame and a radius difference platform which is arranged on the underground well fall-proof safety cage; the well cover is arranged on the radius difference platform; the well frame is arranged around the well cover; the underground well fall-proof safety cage is perpendicular to a level road, and comprises an outer wing circle, six vertical supporting rib columns and a bottom safety plate; the outer wing circle is connected with the six vertical supporting rib columns in a welded mode, and the six vertical supporting rib columns are connected with the bottom safety plate in a welded mode; the outer wing circle comprises an outer square column circular ring, six horizontal supporting ribs and an inner square column circular ring; and the six horizontal supporting ribs are welded evenly between the outer square column circular ring and the inner square column circular ring. According to the sewer pipeline well with the safety fall-proof measure, a fixing mode that the radius difference platform is engaged with the outer wing circle is adopted, so that even though the well cover is washed away by water, the fixation of the sewer pipeline well is not affected.

The invention provides a resin button and a processing method thereof. The resin button prepared according to the method comprises a button body, the button body is provided with longitudinal button eyelets, the resin button further comprises a decorative cover and a connecting part, a longitudinal connecting through hole is formed in the axis of the button body, and the button eyelets are distributed at the outer side of the connecting through hole with the connecting through hole being the center; the decorative cover comprises a shielding sheet and a decorative sheet, the decorative sheet and the shielding sheet are placed in a longitudinally stacked mode, the shielding sheet covers the button body, a first axle hole is formed in the axis of the decorative sheet, a second shaft hole isformed in the axis of the shielding sheet, and the connecting part penetrates through the first shaft hole, the second shaft hole and the connecting through hole to fix the decorative sheet and the shielding sheet to the upper end of the button body; a thread accommodation cavity is arranged between the shielding sheet and the button body, and a sewing thread exposed at the upper end of the buttonbody can be accommodated in the thread accommodation cavity and shielded by the shielding sheet.

A worm machining mechanism lower in weight is used for machining a blank (1) into a worm. The machining mechanism comprises a blank bearing part (2), a sleeve (3) with an external thread, a driving sleeve (4) with an internal thread and a rack (7). An upper ring-shaped flange (211) is arranged at the upper end of the blank bearing part (2), a lower ring-shaped flange (212) is arranged at the lower end of the blank bearing part (2), a ring-shaped cavity (23) is formed between the upper ring-shaped flange (211) and the lower ring-shaped flange (212), and the blank bearing part (2) with the ring-shaped cavity (23) makes the weight of the worm machining mechanism be reduced.