121results about How to "Guaranteed verticality" patented technology

The utility model relates to the technical field of groove wall reinforcing construction, in particular to a double-wheel stirring drilling machine which comprises an engineering vehicle and a drilling machine base, a machine frame is arranged on one side of the drilling machine base, a drilling rod is arranged on one side of the machine frame, a lifting machine corresponding to the drilling rod is arranged on the machine frame, a groove milling machine is arranged at the bottom of the drilling rod, and an inclinometer is arranged on the groove milling machine. At least two groups of milling wheels are arranged on the slot milling machine; the bottom of the rack is hinged to the drilling machine base, a connecting frame is arranged on one side of the middle of the rack, a stabilizing rod is arranged between the connecting frame and the drilling machine base, a steel cable is connected to the top end of the drilling rod, and a winch is arranged on one side of the engineering truck. According to the utility model, the milling wheel is used for forming a cement-soil mixing pile with a rectangular groove section in a horizontal axial rotary mixing manner, and a single-shaft or multi-shaft mixing drilling tool is replaced to vertically rotate, so that a cylindrical cement-soil mixing pile is formed, and a wavy surface is prevented from appearing after an underground continuous wall is poured and formed.

This invention discloses an installation fixture for aluminum alloy wellbore systems, comprising four positioning fixtures respectively clamped and fixed to columns. Each positioning fixture also has two clamping ends, each clamped and fixed to two adjacent crossbeams. A connecting assembly is provided between adjacent positioning fixtures, a measuring assembly for measuring the distance between adjacent positioning fixtures is provided between adjacent positioning fixtures, and a position adjusting assembly for adjusting the position of the positioning fixtures is provided between the multiple positioning fixtures. This invention uses positioning fixtures to connect to the columns and crossbeams respectively, and adjusts the distance between adjacent fixtures through the connecting assembly to ensure that the distance between adjacent columns is consistent, thereby ensuring the fit between each crossbeam and column and avoiding large splicing seams between the crossbeams and columns that would affect stability. Simultaneously, the position adjusting assembly ensures that the center distance between the four columns and the position adjusting assembly is consistent, guaranteeing the strength and stability of the entire wellbore.

The utility model provides a tamping device for electric power construction, and relates to the field of electric power construction. Comprising a tamping machine body and supporting bases arranged on the two sides of the tamping machine body, the tamping machine body comprises a machine base and a tamping mechanism, and the tamping mechanism is arranged in the center of the machine base; the supporting base comprises a supporting plate and an adjustable bottom plate. The supporting plate is vertically arranged on the side wall of the machine base in a sliding mode, and a plurality of elastic supporting columns are arranged between the supporting plate and the bottom of the machine base. A driving piece is arranged on the machine base and used for driving the supporting plate to vertically slide; the adjustable bottom plate is arranged at the bottom of the supporting plate in a universal rotating mode and is fixed to the supporting plate and the ground through a locking structure. The height of the supporting seats on the two sides of the tamping machine body can be adjusted, the mounting angle of the adjustable bottom plate can be adjusted, the perpendicularity of the tamping machine body and the horizontal plane is guaranteed, accordingly, the tamping machine adapts to the uneven bottom face, and the overall stability is guaranteed.

This application discloses an excavator piling mechanism for easy piling, belonging to the field of water conservancy engineering construction. It includes a mounting base, a clamp, a vibrator, a piling head, and a limiting ring. The mounting base is mounted on the excavator boom, the clamp is mounted on the side of the mounting base, the vibrator is fixed inside the mounting base, the piling head is mounted on the output end of the vibrator, and the limiting ring is mounted on the bottom end of the piling head. A limiting space is formed between the inner wall of the limiting ring and the end of the piling head to restrict the movement of the pile end. This application can effectively improve the efficiency of river piling, accurately control the insertion position of the pile, ensure the verticality of the pile, and avoid structural problems caused by uneven stress.

The utility model discloses a breaker electric operation mechanism with long service life, comprising a mounting rack, a driving motor, a transmission assembly, a support wheel, a main shaft and a planetary gear assembly, the driving motor is mounted on the mounting rack, the support wheel is rotatably arranged on the mounting rack through the main shaft, and the driving motor is connected with the main shaft through the transmission assembly. The planetary gear assembly comprises an inner gear and multiple sets of duplex planetary gears, a transmission gear is arranged on the main shaft, the inner gear is in meshed connection with the three sets of duplex planetary gears, a gear shaft is arranged on one side of the inner gear, a cover plate is arranged on one side of the mounting frame, and a shaft hole is formed in the cover plate; and the supporting ring is made of a plastic material, is arranged on the shaft hole of the cover plate, and is sleeved on the periphery of the gear shaft. The plastic part is arranged on the shaft hole of the cover plate and used for being matched with the gear shaft, the perpendicularity of the gear shaft of the inner gear is guaranteed, abrasion between the cover plate of the mounting frame and the gear shaft of the inner gear is reduced, and the service life of the circuit breaker electric operation mechanism is prolonged.

The utility model discloses a guide structure for preventing a cutter from deviating and a bag making machine, relates to the technical field of bag making machines, and aims to solve the problem that the cutting position deviates due to the fact that the cutter needs high-frequency reciprocating motion, the guide structure comprises an anti-deviation cutting assembly, the anti-deviation cutting assembly comprises a connecting frame, sliding holes are formed in the two sides of the connecting frame, and the sliding holes are communicated with the connecting frame. And sliding pieces are movably connected to the interiors of the sliding holes correspondingly, moving rods are fixedly connected to the opposite sides of the sliding pieces correspondingly, cutting knives are fixedly connected to the outer sides of the moving rods correspondingly, connecting pieces are fixedly connected to the outer sides of the sliding pieces correspondingly, and the connecting pieces are located in the connecting frame. The guide structure for preventing the cutter from deviating and the bag making machine have the technical effects that the position of the cutter can be effectively and accurately restrained and dynamically adjusted, the deviation phenomenon of the cutter after multiple times of cutting is effectively prevented, and the cutting operation is ensured to always keep high precision and stability.

The utility model relates to an automatic pin press-fitting device and system. The automatic pin press-fitting device comprises a workpiece transferring tool, a first pin receiving tool, a second pin receiving tool and a press-fitting tool. The pin press-fitting tool has the advantages that the press-fitting tool adopts a single-shaft manipulator (namely a third vertical movement mechanism) for automatic assembly, so that the perpendicularity and height of pin press-fitting are ensured, and the consistency of product assembly is ensured; the press-fitting work is automatically pressed through a servo press, and pressure and displacement intervals can be set, so that high-precision press-fitting of products is realized, and the press-fitting yield of the products is improved; the installation efficiency is high, it is ensured that the first pin and the second pin are installed in place, and the problem that the product is crushed due to overlarge pressure is avoided; manpower participation is reduced, and the production efficiency is improved.

The utility model relates to the technical field of column pile, disclose a kind of deep foundation pit high-precision steel column pile with guide cone, including lattice column and soil layer, the lattice column is located inside the soil layer, the lattice column bottom is provided with reinforcing bar and concrete pile, the reinforcing bar is located inside the concrete pile, the lattice column top is provided with grouting positioning assembly, the lattice column bottom is fixedly connected with mounting plate, the mounting plate bottom is provided with guide assembly, the guide assembly includes cone head and multiple guide plates, the cone head and multiple guide plates are located the mounting plate bottom, the cone head top is fixedly connected with fixed plate.In the utility model, the multiple guide plates are pushed to be conical by the reaction force of spring and are unfolded, so that the widest part is adaptively attached to the hole wall, the displacement of the lattice column during the descending process is avoided, the problems of easy deviation and low positioning efficiency of the lattice column when entering the hole, large error are solved, and the construction efficiency and the precision of the steel column pile are improved.

The utility model discloses a loading opening end frame machining clamp which comprises a bottom plate, a clamping device and a clamping device. The guide template is fixedly arranged on the assembly plane and comprises three vertical planes and a first horizontal plane, the first vertical plane is parallel to the second vertical plane, the third vertical plane is perpendicular to the first vertical plane and the second vertical plane, and the first horizontal plane is perpendicular to the three vertical planes; the equal-height block is attached and fixed to the first vertical face, the equal-height block comprises a second horizontal face flush with the first horizontal face and a fourth vertical face parallel to the first vertical face, and the fourth vertical face upwards protrudes out of the second horizontal face; the positioning block is attached and fixed to the third vertical plane, the positioning block comprises a third horizontal plane flush with the first horizontal plane and a fifth vertical plane parallel to the third vertical plane, and the fifth vertical plane upwards protrudes out of the third horizontal plane; wherein the fourth vertical face is attached to one side edge of the end frame, and the fifth vertical face is attached to the other side edge of the end frame.

The application discloses a kind of nuclear power plant deep burying ground connection slender ground electrode installation construction methods, comprising the following steps: temporarily fixed support is fixedly installed on the outer wall of nuclear power plant workshop;Reinforced anchor rod is installed in the backfill layer below the lower end of ground electrode;The body of ground electrode is tied and fixed on temporarily fixed support, and the lower end of ground electrode is tied and fixed on reinforced anchor rod;Ground electrode is accepted for concealed works;From the lower end of ground electrode, backfill is carried out layer by layer upwards, the connection of temporarily fixed support and ground electrode is released layer by layer, and temporarily fixed support at the place is removed;After the height of backfill layer rises to the top end of ground electrode, lightning protection grounding well is installed at the top of ground electrode;Continue backfill until the height of backfill layer and the well lid of lightning protection grounding well are flush.The application solves the problems of complex process, large workload of traditional ground electrode installation construction method, and the problem that ground resistance increases due to the fact that ground electrode and backfill layer are not in close contact, which affects the grounding effect.

The high-precision piston rod connecting structure comprises a piston rod, the upper end of the piston rod is connected with a piston body, the lower end of the piston rod is connected with a crosshead, the upper end of the crosshead is connected with a positioning flange with a center hole, and the lower end of the piston rod is a reducing end transited through a conical surface section. The reducing end penetrates through the center hole of the positioning flange and is stretched and locked by a first fastening structure; the upper section of the center hole of the positioning flange is a taper hole matched with the conical surface section of the piston rod; the upper end of the piston rod penetrates into a center hole of the piston body, is stretched and locked by a second fastening structure and is provided with an anti-rotation structure. Automatic centering is achieved through conical surface matching, stable pre-tightening force is provided in cooperation with a double-fastening structure, the problems that a traditional connecting structure is insufficient in precision and poor in locking reliability are effectively solved, the operation precision and stability of a compressor are greatly improved, and meanwhile the compressor connecting structure has the advantages of being convenient to install and maintain and long in service life.

The utility model discloses a built-in fixing structure of a bus handrail base, and belongs to the technical field of bus interior decoration devices. The device comprises a handrail arranged in a carriage; the armrest is characterized in that a cavity is arranged at the connecting part of the lower bottom of the armrest and the carriage bottom plate; an inner joint is mounted in the cavity; a positioning hole is formed in the position, opposite to the inner connector, of the compartment bottom plate. A positioning piece is arranged on the inner joint; one end of the positioning piece penetrates through the positioning hole and then is installed on the lower portion of the carriage bottom plate. The handrail base fixing structure effectively solves the problems that a traditional handrail base fixing structure used at present is prone to dust accumulation, inconvenient to clean and prone to loosening.

The utility model relates to PE film processing technical field, concretely is a kind of PE winding film cutting device, including machine plate, the side surface fixed mounting of machine plate has roll stock frame, feeding frame and shearing bin, by setting control distance screw rod, control distance plate, spring, shearing frame, cutting knife, utilize the synergies of these structures, control distance screw rod cooperation control distance slide bar, make control distance plate can accurate lift, to control the cutting depth of cutting knife, satisfy half cut or complete cut two kinds of needs, pressing plate provides pressure by spring, ensure the flatness of cutting edge, by the sliding connection of pressing plate side surface and shearing frame inner side, the movement trajectory of cutting knife is restricted, guarantee the perpendicularity of cutting process, when cutting knife cuts into film, the fitting structure of control distance plate and cutting knife seat provides additional rigid support, reduce the deformation risk of cutting knife, prolong tool life, realize the control of PE winding film cutting depth, stability and precision, improve the efficiency and quality of packaging operation.

The utility model discloses a beam pipe welding tool. The beam pipe welding tool comprises a workbench; the plurality of positioning blocks are arranged on the workbench and are used for placing the cross beam pipe and limiting the cross beam pipe; the first positioning device is arranged on the workbench and is used for positioning the cross beam pipe; the second positioning device is arranged on the workbench and is used for positioning the cross beam pipe; the third positioning device is arranged on the workbench in a sliding manner and is used for placing a cross beam welding piece and pushing the cross beam welding piece into the cross beam pipe; the fourth positioning device is arranged on the workbench and used for driving the third positioning device to stretch out and draw back, and the control switch is used for controlling the first positioning device, the second positioning device, the third positioning device and the fourth positioning device to work.

This utility model relates to construction machinery, and in particular to a vibratory pile driving machine with a hollow vibratory head. It includes a pile frame platform with a column on the platform. A vibratory head is vertically mounted on the column. The vibratory head includes a vibrating assembly and a clamping assembly connected together. The vibrating assembly has a pile driving channel through which a pile driving tube passes. The clamping assembly is positioned at the pile driving channel, through which the vibrating assembly passes, and the pile driving tube passes through the vibrating head. The clamping assembly clamps the pile driving tube from the side. A locator positions the pile driving tube to ensure its verticality. The vibrator drives the pile driving tube to vibrate through centrifugal force from eccentric rotation. The pile driving channel is located between two sets of vibrators, ensuring balanced left-right vibration and preventing lateral displacement of the pile driving tube.

The utility model discloses a fixing structure of special-shaped prefabricated part is used to solve the fixing problem of special-shaped prefabricated part in the assembly type building. The structure includes the support seat fixed in the support beam, and the pull rod mechanism and the inclined support mechanism. The pull rod mechanism realizes the hoisting and attitude adjustment of the special-shaped prefabricated part through the hinged cooperation of the boom assembly, the support assembly and the pull rod assembly. The inclined support mechanism can flexibly adjust the support angle with the help of the first support piece, the second support piece and the adjusting rod, and ensures the stable installation of the special-shaped prefabricated part. The support seat and each component are connected accurately through the notch, the waist round adjusting hole and other structures, and the surface of part of components is provided with rubber flat pads to enhance the fixing effect. Compared with the traditional installation mode and the existing automatic equipment, the utility model improves the installation precision and efficiency, reduces the labor intensity and safety risk, and has stable and reliable structure and strong universality, is suitable for the installation and fixing of various specifications of special-shaped prefabricated parts, and has important significance for promoting the development of building industrialization.

The application discloses a welded pipe port polishing device and method, and particularly relates to the technical field of welded pipe polishing devices, which comprises a machining table, a placing groove for placing a welded pipe is arranged on the top of the machining table, a polishing mechanism is arranged in front of the placing groove, the polishing mechanism comprises an inner ring grinding wheel, an outer ring grinding wheel and an end face grinding wheel, a rotating rod is detachably arranged on each of the inner ring grinding wheel, the outer ring grinding wheel and the end face grinding wheel, a supporting frame is fixedly arranged on the top of the machining table, a fixed plate is fixedly arranged at the front end of the supporting frame, a transmission shaft is rotatably arranged on the fixed plate, a rotating plate is fixedly arranged on the transmission shaft, and a plurality of rotating rods are rotatably arranged on the rotating plate. The combined polishing mechanism comprising the inner ring grinding wheel, the outer ring grinding wheel and the end face grinding wheel is coaxially arranged and can be synchronously rotated and fed, so that the polishing of the inner and outer rings and the end face of the welded pipe port can be completed at one time, the concentricity and perpendicularity of the polishing surface are ensured, and the machining efficiency and quality are greatly improved.

The present application relates to the technical field of loading and unloading machine, especially to a multi-stage telescopic sleeve mechanism of a nuclear power plant loading and unloading machine, which comprises an outer sleeve, an inner sleeve and at least one intermediate layer sleeve between the outer sleeve and the inner sleeve, the remaining sleeves outside the inner sleeve are provided with an on-off type automatic stop block device, and the remaining sleeves outside the inner sleeve are kept in a static state by the blocking and limiting of the on-off type automatic stop block device; the present application solves the problem that the telescopic sleeve stroke of deep core fuel operation is relatively long and the fixed sleeve cannot be relatively long due to process limitations; the problem that the fuel assembly cannot be loaded and unloaded because the multi-stage telescopic sleeve fuel assembly is still located in the second outer layer sleeve at a non-core station is solved; and the problem of the verticality and positioning accuracy of the multi-stage sleeve is solved.

The invention relates to low-disturbance soil pile forming equipment and a construction technology, and relates to the technical field of pile foundation construction, and the low-disturbance soil pile forming equipment comprises a stand column, a drilling system and a drilling power assisting device. Under the synergistic effect of low-pressure drilling and the drilling power assisting device and in combination with an intermittent stamping mode generated by the push-pull assembly, formation resistance is efficiently broken through on the premise of low disturbance; and meanwhile, the guiding and linkage assembly is used for achieving automatic lateral stabilization in the drilling process, deflection is effectively restrained, the pile forming perpendicularity is guaranteed, and the technology has the advantages of being small in construction disturbance, low in noise, free of slurry discharging, high in pile forming quality, high in equipment adaptability and the like, and is suitable for efficient low-disturbance construction in narrow sites.

This invention discloses a method for cleaning the edge baffle of a continuous hot-dip galvanizing visible air knife, characterized by the following steps: S1, offline mode: during production preparation, after the air knife is connected to the gas pipeline and electrical connector, the edge baffle of the air knife is in an offline position for action testing; S2, online mode: after the production line starts and the strip steel runs, once the air knife is in normal operation, the edge baffle of the air knife begins to move from the offline position to the online position; S3, edge baffle cleaning mode; S4, air knife lip cleaning mode. This invention also discloses a device for cleaning the edge baffle of a continuous hot-dip galvanizing visible air knife, comprising: an edge baffle bracket, installed on the top of the edge baffle of the air knife; two sets of camera monitoring components, respectively installed on both sides of the front end of the edge baffle bracket, for monitoring the two sides of the edge baffle of the air knife; and two sets of scraper drive components, respectively installed on both sides of the rear end of the edge baffle bracket.

The utility model provides a small sliding table air cylinder which comprises a base and a sliding table located above the base, and a crossed linear rail is arranged between the base and the sliding table so that the sliding table can form the freedom degree of sliding in the front-back direction of the base. A longitudinal air cylinder, a longitudinal piston and a piston rod are arranged in the middle area, in the width direction, of one end of the sliding table, a fixing plate is arranged at one end of the base, and the tail end of the piston rod is matched with the fixing plate to exert force to drive the sliding table. Two first air connecting openings communicating with the two ends of the longitudinal air cylinder correspondingly are formed in the side portion of the sliding table. The utility model has the advantages of compact structure, strong bearing capacity, good rigidity and stable operation.

The application relates to the technical field of steel beam structures, in particular to a spliced steel beam system which comprises a steel beam and a concrete slab, the concrete slab is provided with a plurality of drill holes, and a pre-packaged chemical anchoring agent is arranged in the drill holes; the front and rear ends of the steel beam are each provided with a plurality of through holes, the through holes and the drill holes are in one-to-one correspondence; the spliced steel beam system further comprises an open-close clamping unit, the open-close clamping unit is provided with a plurality of clamping cavities, a welding pin is slidably arranged in the clamping cavities in the vertical direction, and the welding pin is used for being inserted into the corresponding through hole and drill hole; the open-close clamping unit has two states of opening and closing, when the open-close clamping unit is in the closing state, the clamping cavities clamp the welding pins, and the welding pins remain stable without external force; when the open-close clamping unit is in the opening state, the clamping cavities are exposed to gaps, so that the open-close clamping unit can slide away from the welding pins in the horizontal direction. The application can reduce the labor intensity of workers and improve the splicing efficiency of the steel beam structure.

The invention belongs to the field of dewatering well construction, and particularly relates to a novel dewatering well structure for hydraulic engineering and a construction method.The construction method specifically comprises the following steps that firstly, in the preparation stage, a detachable filter pipe with a cleaning function is prefabricated, and a multi-dimensional sensing system with a water quality and flow monitoring function is arranged; step 2, pore-forming and mounting: performing pore-forming operation on the precipitation well, reserving a precipitation space at the pore-forming depth, and then assembling detachable filter tubes in sections and lowering the detachable filter tubes into the pores; step 3, filling a filter material, namely filling the filter material between the filter tube and the hole wall by using a material guide device according to a predetermined grading layer by layer, and taking an anti-overhead measure in the filling process to ensure the compactness of the filter material; 4, sealing and connecting: constructing a sealing structure above the filter material layer; 5, operation and maintenance are carried out, wherein pilot operation is carried out on the dewatering well system; and step 6, operation and maintenance: formal precipitation is carried out, and the physical state of the filter tube is diagnosed in real time according to vacuum degree, water level, flow and turbidity data fed back by the sensing system.

The utility model discloses a multi-angle adaptive energy-saving curtain wall unit and a unit type curtain wall, and relates to the technical field of curtain wall engineering. The curtain wall unit comprises a front stand column, a rear stand column, a glass panel, a transverse connecting piece and a cross beam. The rear stand column is vertically installed on a building body relative to the horizontal plane. The front stand columns are connected with the rear stand columns through transverse connecting pieces and obliquely arranged relative to the rear stand columns. The glass panel is installed on the front stand column and obliquely arranged along with the front stand column. The cross beams are located at the upper and lower ends of the glass panel and fixed on the front columns for supporting the glass panel. Through the transverse connecting pieces and the front stand columns which are arranged in an inclined mode, the glass panel is arranged in a multi-angle inclined mode. According to the unit type curtain wall, the curtain wall units with different inclination angles are arranged in an array mode, and the attractiveness of a building vertical face can be improved.

The utility model discloses profile cutting equipment for building construction, and relates to the technical field of building profile processing, the profile cutting equipment for building construction comprises a cutting machine body, a base, support frames and a material guide roller, the cutting machine body is rotatably connected to the base, the support frames are vertically and rotatably connected to the two sides of the base, and the material guide roller is arranged on the base. The supporting frames are evenly and rotationally connected with a plurality of material guide rollers, the two supporting frames rotate to be horizontal and are in butt joint with the base to form a long supporting platform, and the upper sides of the material guide rollers are matched and flush with the upper side of the base. The supporting frames which can rotate to the horizontal state and are in butt joint with the base are arranged on the two sides, an extended rigid supporting platform is formed, the problems of overhanging and inclining in the long profile machining process are effectively solved, the perpendicularity and machining precision of a cutting face are guaranteed, after machining is completed, the supporting frames can rotate to be folded to the vertical state, and the supporting frames can be folded to the horizontal state. And the equipment size is greatly reduced, and transportation and transition are facilitated.

This utility model discloses a support structure and a container assembly. The support structure includes a support foot and a locking component. The support foot has a support portion, an assembly portion, and a side stop portion. A support platform is formed at the top of the support portion. The assembly portion protrudes from the middle of the support platform, and the side stop portion surrounds the edge of the support platform. An assembly gap is formed between the side stop portion and the assembly portion. The bottom of the assembly part on the container is provided with an assembly hole. The support platform is used to connect with the bottom of the assembly part and provide support for it. After the assembly portion extends into the assembly hole and the wall of the assembly part extends into the assembly gap, the locking component can connect with the assembly part and the side stop portion, locking and fixing the assembly part and the side stop portion. The support structure of this utility model has the characteristics of simple structure and convenient assembly and disassembly, as well as strong load-bearing capacity. It can assist AGV transport vehicles to achieve fast and accurate container transfer without frequent disassembly and assembly, thus improving the container transfer efficiency.

The utility model relates to the technical field of plates, and discloses an outdoor hollow aluminum veneer curtain wall which comprises wall columns, the opposite sides of the two wall columns are jointly and fixedly connected with a frame, an aluminum veneer is arranged on one side of the frame, and a plurality of mounting holes are formed in one side of the frame. According to the outdoor hollow aluminum veneer curtain wall, through the arrangement of the damper, the movable block, the spring and the foot plate, when the aluminum veneer expands with heat and contracts with cold due to temperature change, expansion or contraction force can be generated, the foot plate of the aluminum veneer transmits the force to the movable block, so that the movable block moves in the mounting hole, meanwhile, the spring can be compressed when the aluminum veneer expands, and therefore the aluminum veneer is prevented from expanding. When the aluminum veneer expands, part of energy generated by expansion is absorbed, so that certain space and buffering are provided for expansion and contraction of the aluminum veneer, meanwhile, the damper enables the movable block to move more stably, damage to the frame and the whole curtain wall structure caused by stress generated by thermal expansion and cold contraction of the aluminum veneer is effectively relieved, and the service life of the curtain wall is prolonged.

The invention belongs to the technical field of dies, and particularly relates to a floating type die for a shaping cutter block, which comprises a lower die holder, through the structural design of double steps and vertical parts of the outer side steps, the lower die holder is used as a basic support structure to provide stability for the whole die, ensure uniform stress in the shaping process and avoid the influence of vibration or offset on the machining precision. The material pressing core moves downwards in the initial stage to press a to-be-shaped part (such as a double-step vertical part), displacement or deformation of the to-be-shaped part during follow-up movement of the floating tool turning edge and the fixed tool turning edge is prevented, the spring (such as a nitrogen spring) provides buffering and adjustable pressure during movement of the floating tool turning edge, it is guaranteed that force applied to the part in the flanging and shaping process is uniform and controllable, and the shaping quality is improved. And the fixed tool turning edge is subjected to final shaping after the floating tool turning edge completes preliminary shaping, the perpendicularity of a step on the outer side of the part is guaranteed through a rigid structure of the fixed tool turning edge, and meanwhile friction or impact on the part during returning is reduced through a bottom buffering pad.

The utility model provides a rice planting irrigation device, which belongs to the field of rice planting irrigation, and comprises a support plate and a vertical column arranged on the support plate, and further comprises an irrigation mechanism arranged on the vertical column; the water level monitoring mechanism is slidably connected to the vertical column in a sleeving mode, the water level monitoring mechanism can detect the water level in the rice field, and timely irrigation can be conducted; the protection mechanism is connected to the vertical column in a sliding and sleeving mode, and the protection mechanism can protect the water level monitoring mechanism. Through the arrangement of the protection mechanism, an iron gauze cover can be driven to ascend and descend under the action of a second sliding sleeve and a second fixing bolt, and a floating ball can be sleeved with the iron gauze cover; the device can prevent weeds and floating objects in the rice field from interfering with the floating ball, so that the situation of misjudgment of the water level is avoided, the monitoring accuracy is improved, and accurate irrigation can be realized.

The utility model relates to the technical field of camera shooting equipment, and discloses a camera shooting module, which comprises a base assembly, a shell, a lens assembly, a bearing piece, an image sensor and a driving module, and is characterized in that the base assembly comprises a base and a fixing piece, and the fixing piece is integrally arranged on the base and is positioned on one side of the base; an accommodating cavity is formed between the shell and the base assembly; the lens assembly is fixed in the central opening of the shell; the bearing part is arranged in the accommodating cavity in a sliding manner; the image sensor is fixed on the bearing part; the driving module comprises a magnet assembly and a coil assembly; the bearing piece is provided with a first sliding groove, the fixing piece is provided with a second sliding groove, and a guiding piece is installed between the first sliding groove and the second sliding groove. A first limiting piece is arranged at the upper end of the first sliding groove, and a second limiting piece is arranged at the lower end of the second sliding groove and used for preventing the guiding piece from sliding out. According to the utility model, the assembly steps and assembly errors can be reduced, and the perpendicularity between the fixing piece and the base is ensured; and the bearing part can be conveniently and smoothly installed, the assembling difficulty is reduced, and the product robustness is improved.