73results about How to "Not easy to deviate" patented technology

The invention belongs to the field of sewage treatment equipment, and relates to a sewage treatment mixing device and assembling and disassembling methods thereof, which aims at solving the problems of the prior art that the structure is complicated, the angle and the agitating diameter of an agitating blade are difficultly adjusted and the blade is not easily disassembled and replaced quickly. According to the technical scheme adopted, an upper shell and a lower shell are rotatably connected in a buckling manner, the blade is connected with an impeller sleeve by a positioning rod, to be capable of relatively rotating so as to adjust the inclination angle of the agitating blade, and the agitating diameter of the extended blade can be adjusted through small holes in the blade sleeve and spring ejector pins in a trapezoidal slot of the positioning rod. According to the sewage treatment mixing device and assembling and disassembling methods thereof, the structure is simple, the angle and agitating diameter of the agitating blade are conveniently adjusted and the blade can be disassembled and replaced quickly.

The invention discloses automatic flywheel screw hole machining equipment which comprises a bracket, a turntable, a pressing station cooperated to locate a workpiece, a drilling station, a tapping station and a control unit, wherein the turntable is connected with a first driving piece for driving the turntable to rotate; a plurality of locating parts are uniformly arranged on the turntable in a spacing manner; the pressing station comprises a pressing plate, a second driving piece for driving the pressing plate to move up and down, and a third driving piece for driving the pressing plate to move back and forth; and the drilling station comprises a double-head drill, a drilling bracket which is used for supporting the position of the double-head drill above the locating parts and a fourth driving piece for driving the double-head drill to move up and down. Due to the control of the control unit over all the stations and the turntable, the automatic flywheel screw hole machining equipment realizes automatic machining of the workpiece, and is high in working efficiency; and the workpiece is high in consistency and qualification rate.

A polishing apparatus connected to a robot arm and used to polish a workpiece includes a bracket, a polishing assembly, and a positioning assembly. The polishing assembly is mounted on the bracket and includes a driver and a polishing plate connected to the driver. The driver is capable of driving the polishing plate to rotate, and defines an annular positioning groove around the spin axis. The positioning assembly includes a first positioning plate and a second positioning plate mounted on the bracket and opposite to the first positioning plate. The first positioning plate and the second positioning plate are clamped into two sides of the positioning groove, whereby the driver is clamped between the first positioning plate and the second positioning plate.

The invention relates to a bone support type bone cutting and navigation registration guide plate for temporal-mandibular joint arthroplasty. The guide plate comprises an upper fixing part, a lower fixing part and a connecting part, wherein the inner surface structures of the upper fixing part and the lower fixing part are matched with the shape of the outer contour of the jaw of a patient; the upper fixing part and the lower fixing part are connected through the connecting part; a bone cutting groove is formed between the upper fixing part and the lower fixing part; fixing holes and registration points are respectively arranged in the upper fixing part and the lower fixing part; the registration points are of a concave point structure. The bone cutting position can be accurately and stably positioned by the invention; the fast registration of the navigation in the operation can be realized; the efficient implementation of the operation is facilitated; the operation time is shortened,and the bleeding and side effects are reduced.

The invention discloses an automatic bar stock processing machine tool. The automatic bar stock processing machine tool comprises a processing machine frame, and a loading machine frame is arranged onone side of the processing machine frame; a feeding plate is arranged on the loading machine frame, and a pushing device is arranged above the feeding plate; the feeding plate is arranged in a V shape, and a first telescopic rod is connected to a supporting block of the bottom surface of the feeding plate; a main shaft is rotatably arranged on the processing machine frame, and an encoder is connected to the main shaft; a transverse sliding seat is arranged on the processing machine frame, and a transverse pushing device is connected between the transverse sliding seat and the processing machine frame; a longitudinal sliding seat is arranged above the transverse sliding seat, and a longitudinal pushing device is connected between the longitudinal sliding seat and the transverse sliding seat; and a plurality of turning tools are arranged on the top surface of the longitudinal sliding seat. The automatic bar stock processing machine tool can improve the feeding effect, and further has the advantages that the processing operation is relatively convenient, the labor strength is small, the bar stock utilization rate is high, the using is relatively convenient, the application range is wide, the control precision is high, the processing precision is high and the discharging is relatively convenient.

The invention relates to a method for laying reinforced meshes of cast-in-situ concrete floors. The method is characterized by comprising steps of 1), designing and welding the reinforced meshes; 2), laying the reinforced meshes of bottom layers of the floors; 3), laying the reinforced meshes of surface layers of the floors; 4), arranging plastic cards or mortar spacers on the reinforced meshes of the bottom layers and arranging horse-shaped stools on the reinforced meshes of the surface layers at intervals of 600-900 mm. The plastic cards or mortar spacers are equivalent to the thicknesses of the protective layers. The method has the advantages that reinforcing steel bars of the concrete floors can be constructed by the aid of the method, accordingly, straight stressed reinforcing steel bars in longitudinal and transverse directions can be guaranteed, grids of the reinforcing steel bars have uniform sizes, and the meshes, which are formed by means of welding, of the reinforcing steel bars are good in integrity, high in stiffness and difficult to deform and are difficult to locally bend, deform and deviate even under the effect of external force in concrete pouring construction procedures; the concrete protective layers, which are formed by means of pouring, of the reinforcing steel bars of the floors have uniform thicknesses, and accordingly the crack resistance of the floors can be improved; a large quantity of labor can be saved, the production efficiency can be improved, and good economical effects can be realized.

The invention relates to a corner grinding machine tool. The tool is characterized by comprising a rack, a platform used for placing a to-be-ground workpiece, a platform driving mechanism and two grinding mechanisms, wherein the platform is arranged above the table top of the rack, and the positioning structure used for positioning the to-be-ground workpiece on the platform is arranged on the platform; the platform driving mechanism is used for driving the platform to horizontally slide back and forth; the two grinding mechanisms are arranged on the left side and the right side of the rear part of the rack and correspond to two grinding corners of the to-be-ground workpiece respectively; each grinding mechanism comprises a driving belt wheel and a driven belt wheel, an abrasive belt is obliquely arranged between each driving belt wheel and the corresponding driven belt wheel, and the width of each abrasive belt is larger than the height of the grinding corners of the to-be-ground workpiece. The corner grinding machine tool can be used for grinding the two side corners of the to-be-ground workpiece at the same time, and the tool can precisely grind the workpiece with the corners meeting design requirements. The corner grinding machine tool can be used for automatically grinding the two side corners of the to-be-ground workpiece at the same time, and can precisely grind the workpiece with the corners meeting the design requirements.

The invention relates to a mold comprising a mold seat, a plurality of guide column fixing blocks, a plurality of guide columns, and a plurality of screws. The mold seat comprises a sub-mold surface. A plurality of recesses are arranged on the edge of the sub-mold surface. A plurality of screw matching holes are arranged at each recess. Each guide column fixing block is used to be engaged into one recess. A through guide hole and a plurality of screw through holes are arranged in each guide column fixing block. Each guide column comprises a guide rod part and a rim positioned on the bottom of the guide rod and protruding outwards. The outer diameter of the rim is larger than the diameter of the guide hole. The rim of each guide column is set on the recess, and the guide rod part penetrates a guide hole. Each screw penetrates a screw through hole, and is fixed into a screw matching hole, such that the guide column fixing block is fixed into a corresponding recess. The mold as a sub-mold can be used in cooperation with another sub-mold provided with a guide sleeve.

The invention discloses a hull bottom arthropod type suction grille, and belongs to the technical field of ship equipment. The hull bottom arthropod type suction grille comprises a water inlet fixingframe, and a grille board group is arranged in the water inlet fixing frame and comprises a grille head part, a grille trunk part and a grille tail part. The grille trunk part comprises a plurality ofarthropod grille boards distributed in parallel, each arthropod grille board comprises a second grille board and a pair of second connecting heads, and a connecting mechanism is connected between each pair of adjacent arthropod grille boards. The connecting mechanisms comprise fixed parts and driving connecting parts, the driving connecting parts comprise connecting rods and rotary connecting rings, the connecting rods are fixedly connected with the left ends of the second connecting heads through the rotary connecting rings, and the fixed parts comprise positioning double rods and operativepull boards. The hull bottom arthropod type suction grille can be subjected to matched adjustment according to ship seawater suction inlets under different situations by imitating the body construction of arthropods, and universality of the hull bottom suction grille is obviously improved from two aspects of size adjustment and line type adjustment.

The invention discloses a wide-width large-span hybrid beam extradosed cable-stayed bridge system and a construction method thereof. The wide-width large-span hybrid beam extradosed cable-stayed bridge system comprises hybrid beams which are composed of concrete box girders and corrugated web steel box-concrete composite beams and arranged on two sides in a transverse bridge direction, wherein the concrete box girders are positioned on two sides of a middle fulcrum and are integrally poured with a bridge tower; the composite beams are located in side span and middle span; the concrete box girders and the composite beams are connected through a steel-concrete combined section; the steel-concrete combined section is formed by pouring combined section concrete in a corrugated web steel box; the hybrid beams are transversely composed of middle fulcrum concrete cross beams, truss type steel cross beams, I-shaped steel cross beams and end cross beams which are connected; a bridge deck is arranged on the hybrid beams; and the hybrid beams are supported by main piers and transition piers. The hybrid beam extradosed cable-stayed bridge system is reasonable in structural design, convenient to construct, good in using effect and capable of being used for wide and large-span bridges. Meanwhile, the invention further discloses a matched construction method. The matched construction method comprises the steps of bridge tower construction, concrete box girder construction, composite beam construction, steel-concrete combined section construction and the like. The construction method is complete, and construction progress is fast.

The invention relates to a reaction kettle and a three-phase flow catalytic reaction method applying the same. The invention aims to provide the reaction kettle high in production efficiency and meanwhile provide the three-phase flow catalytic reaction method applying the reaction kettle. The invention relates to the field of chemical industrial reaction equipment. In order to achieve the purpose, the reaction kettle comprises a kettle body, wherein a reaction chamber is formed in the kettle body; a flow guiding structure is arranged in the reaction chamber and comprises a permeating part; a feeding hole and a discharging hole are communicated with the flow guiding structure or the flow guiding structure comprises a first flow guiding structure and a second flow guiding structure; the feeding hole is communicated with the first flow guiding structure; the discharging hole is communicated with the second flow guiding structure; reactants are introduced through the feeding hole and then react after entering into the reaction chamber through the permeating part; acquired products are discharged from the discharging hole communicated with the flow guiding structure through the permeating part. Meanwhile, the invention also provides the three-phase flow catalytic reaction method applying the reaction kettle.

The invention discloses a special rail trolley for friction rolling on a rail. Two opposite inclined surfaces are arranged at the top of the rail; the upper ends of the two inclined surfaces are close to each other; the lower ends of the two inclined surfaces are far away from each other; a copper strip is arranged on the rail in the length direction; the rail trolley comprises a trolley body; a motor and an even number of inclined surface rollers are arranged in the trolley body; the inclined surface rollers are uniformly distributed on the two sides of the rail and are respectively propped against the two inclined surfaces; the motor drives the inclined surface rollers to roll along the inclined surfaces; an electric brush in contact with the copper strip is arranged on the trolley body; the electric brush is used for supplying power to the motor; a tail plate is arranged on the top surface of the trolley body; the tail plate comprises an extension portion which extends in the same direction or the opposite direction of the running direction of the trolley body; and an even number of supporting rollers are arranged below the extension portion. The rail trolley is driven to move through the friction force between the inclined surface rollers and the inclined surfaces, so that the rail trolley runs more quietly and stably, and the processing requirement is low.

The invention provides a method for packaging an optical film, a carrying device, and a package for applying the same. The method of packaging the optical film comprises the following steps. First, the surroundings surround the plurality of optical films. Then, the plurality of optical films are placed on the carrier case. Then, the space between the carrier and the plurality of optical films is placed to fix the relative positions of the plurality of optical films and the carrier. Then, the cover is provided over the plurality of optical films. The enclosure, the carrier, the plurality of optical films and the cover are then placed in the package box. The position of the optical film using the packaging method of the present invention is stable, stable and easy to be displaced in the carrier case, so that the packaging structure can be placed in the package box in any direction.

The invention provides a concrete sleeper drilling support, which at least comprises a base, wherein the lower part of the base is provided with a fixing device for fixing a sleeper; the upper part of the base is provided with a sliding rod vertical to the base; and the sliding rod is provided with a fixing support for mounting a drilling machine capable of sliding along the sliding rod. The concrete sleeper drilling support provided by the invention has exquisite structure; the milling machine arranged on the drilling support can conveniently drill the sleeper; manpower is saved and deviation is difficult to occur in the drilling process; and the concrete sleeper drilling support also has the advantage of short time for leaving tracks.

The invention relates to the technical field of the building design, in particular to a non-bonded detachable embedded part of an unloading platform of a high-rise building and a construction processthereof. The unloading platform includes a reinforced concrete layer; two PVC casing pipes distributed symmetrically are installed and embedded into the reinforced concrete layer; and U-shaped pre-embedded anchor rings are nested and installed in the PVC casing pipes. An overhanging I-shaped steel is installed between the two PVC casing pipes, wherein the bottom surface of the overhanging I-shapedsteel and the top surface of the reinforced concrete layer are arranged at the same level; a steel plate is arranged on the top of the overhanging I-shaped steel and penetrates the tops of the U-shaped pre-embedded anchor rings; gaskets are arranged at tops of connection parts between the U-shaped pre-embedded anchor rings and the steel plate; and nuts are arranged on the gaskets. The steel plateis connected with the overhanging I-shaped steel closely by the gaskets and the nuts; and a wooden wedge layer is arranged between the overhanging I-shaped steel and the PVC casing pipes. The non-bonded detachable embedded part having a simple structure is operated and constructed conveniently; and the non-bonded pre burying of PVC casing pipes is employed and the U-shaped anchor rings are recycled by multiple times, so that the resources are saved.