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59results about How to "Increase the operating area" patented technology

Cover-excavation top-down underground passage structure and construction method thereof

The invention discloses a cover-excavation top-down underground passage structure and a construction method thereof. The cover-excavation top-down underground passage structure comprises first supportpiles, hanging walls, a top plate, first side walls and a first bottom plate, the first support piles are arranged at intervals along the outer side lines of two sides of a passage, a top beam is arranged at the tops of each group of first support piles, the two hanging walls are arranged on the left side and the right side of the top plate correspondingly, the top plate is hung at a designed position through the two hanging walls, the upper ends of the hanging walls are fixedly connected with the top beams, the two first side walls are arranged at the bottoms of the two hanging walls correspondingly, the first bottom plate is arranged between the bottoms of the two first side walls, filling layers fill the portions between the first side walls and the first support piles on the corresponding sides and between the hanging walls and the first support piles on the corresponding sides, open excavation underground passage structures are constructed on the two sides of the cover-excavationtop-down underground passage structure correspondingly, the open excavation underground passage structures comprise second support piles, second side walls and second bottom plates. According to thecover-excavation top-down underground passage structure and the construction method thereof, the technical problems of narrow operation space, long construction period and high construction cost of traditional cover-excavation construction are solved.
Owner:CHINA CONSTR SECOND ENG BUREAU LTD

Bailey truss double-layer bidirectional arrangement high-supported formwork construction method

A kind of double-layer two-way layout high formwork construction method of Bailey frame, comprises the following steps: (1) the construction of lattice type steel pipe column, comprises the construction of independent foundation under steel pipe column, the arrangement of oblique support between steel pipe column, lattice structure Erection of the I-steel cover beam on the top of the lattice-type steel pipe column; (2) Lay the main Bailey frame on the upper part of the I-steel cover beam of the lattice-type steel pipe column, parallel to the direction of the main beam, and used for the lower support of the main beam during concrete pouring ;(3) Lay the secondary Bailey frame on the upper part of the main Bailey frame, parallel to the direction of the secondary beam, for the lower support of the secondary beam concrete pouring; (4) Lay the I-beam distribution beam on the upper part of the main and secondary Bailey frame , evenly transfer the upper load to the lower Bailey frame; (5) Set up a scaffold above the I-beam distribution beam for the formwork of the primary and secondary beams. The present invention adopts a high-support formwork system combined with lattice-type steel pipe columns and Bailey beams arranged vertically and horizontally, which has good strength, rigidity and stability, high erection height and large span, effectively solving the bearing capacity and The problem of insufficient stability and limited erection height is suitable for concrete pouring of beams with high height from the ground, large cross-section and large span, and vertical and horizontal arrangements.
Owner:中建五局第三建设有限公司

Oscillating shaking table

The invention discloses an oscillating shaking table. The oscillation shaking table comprises a rack, oscillating tanks, a motor, a belt, a belt pulley, a synchronizing wheel, a synchronizing belt, eccentric shafts, oscillating plates, pulley wheels, a guide rail and a main shaft, wherein the oscillating tanks are arranged below the rack, the motor is arranged on one side of the oscillating tanks, the main shaft is arranged in the center of the rack, the belt pulley and the synchronizing wheel are arranged below the main shaft, the belt is arranged on the belt pulley and connected with the motor, the synchronizing belt is arranged on the synchronizing wheel, and the other end of the synchronizing belt is connected with the eccentric shafts; the upper end of the main shaft is connected with the eccentric wheel, the oscillating plates are fixed on the eccentric wheel, the oscillation tank is fixed below the oscillating plates, and the guide rail and the pulley wheels are arranged below the oscillating tanks. According to above mode, the oscillating shaking table has reliable performance, compact structure and good oscillation, has large operation area due to two oscillating plates, is high in efficiency, small in noise and low in cost; meanwhile, the oscillating shaking table has wide market prospect on the biological culture market.
Owner:苏州培英实验设备有限公司

Mind mapping tool for economic management

The invention belongs to the technical field of economic management, and especially relates to a mind mapping tool for economic management. The mind mapping tool comprises a display main board, four sliding grooves are formed in the back surface of the display main board, and the four sliding grooves are distributed in a cross shape. A second partition plate is connected to the center of the backsurface of the display main board; a cavity is formed in the bottom end of the second partition plate; a rotating block is rotationally connected to the interior of the cavity; four sliding rods are connected to the outer wall of the cavity; and the sliding rods are arranged in the sliding grooves. Each sliding rod is sleeved with a movable rod. The sliding grooves, the sliding rods, a jacking spring, a clamping block, a rotating block and a clamping groove are mounted on the back surface of the display main board, so display side plates are convenient to contract, and more space is saved whenthe mind mapping tool is not used; a conveying belt, a rotary knob and a rotary rod are installed on the back face of the display main board, so the mind mapping tool is convenient to operate; and the display side plates are installed on the side faces of the display main board, so the operation area of the mind mapping tool is increased.
Owner:BAISE UNIV

Workbench of carving machine

The invention belongs to the technical field of carving machine equipment, and particularly discloses a workbench of a carving machine. The workbench comprises a workbench body, a first servo motor driving the workbench body to rotate, and chain plate conveying devices arranged on the two sides of the workbench body. Each chain plate conveying device comprises chain wheels, a chain plate conveying belt and an overturning and clamping mechanism fixed to the side edge of the chain plate conveying belt, wherein the chain plate conveying belt is driven through the wheels, and the height of the chain plate conveying belt is equal to the height of the workbench body. Each overturning and clamping mechanism comprises a rotating shaft, a second servo motor, a limiting plate and fixing bases, wherein the fixing bases are arranged at the two ends of the rotating shaft correspondingly and fixed to the side edge of the chain plate conveying belt; an output shaft of the second servo motor is rotationally connected with the rotating shaft through a belt; and the limiting plate is fixedly arranged on the rotating shaft. The workbench can effectively conduct centering fixing on a wood board, the two ends of the wood board are tightly clamped through the limiting plates, fixing is firm, and moving, twisting or other loosening phenomena of the wood board are not likely to happen.
Owner:重庆汇升套装门有限公司

Gas-liquid connection-disconnection device with anti-insertion mistake function, applied to space experiment cabinet, and use method for same

The invention relates to a gas-liquid connection-disconnection device with an anti-insertion mistake function, applied to a space experiment cabinet, and a use method for the same. When a male joint is in fitted docking with a female joint, a direct-connection middle sleeve and a male valve sleeve can be screwed in by trapezoidal threads through cooperation, a guide shaft is pressed against a malevalve, the male valve and a male valve pressure spring are compressed, the male valve sleeve is pressed against a slide sleeve, and the slide sleeve and a pressure spring of the slide sleeve are compressed, so a fluid channel of the male joint and a fluid channel of the female joint can be communicated and dual-way breaking-over is realized; and after docking, the male valve and the slide sleevewhich are disconnected can be reset by the male valve pressure spring and the slide sleeve pressure spring respectively and can be connected to the male valve sleeve and the slide sleeve in a sealed manner respectively, and the fluid channel of the male joint and the fluid channel of the female joint are closed. The connection-disconnection device provided by the invention has the beneficial effects that gas entrance is avoided during connection, leakage is prevented during disconnection, so connection and disconnection operations are convenient; and during whole processes of connection and disconnection, a sealed and isolated state is maintained inside and outside the fluid channels, so a low air intake amount is effectively guaranteed.

Stall protection device based on centrifugal aerator

The invention relates to the technical field of environment-friendly materials, and discloses a stall protection device based on a centrifugal aerator; the stall protection device comprises a main body, a rotating shaft, an execution mechanism, a transmission mechanism and a trigger mechanism; the inner side of the main body is rotatably connected with the rotating shaft; and the interior of the rotating shaft is movably connected with the execution mechanism and is used for enlarging the rotating area of the rotating shaft during working. According to the stall protection device based on the centrifugal aerator, the rotating shaft drives the trigger mechanism to operate, and the transmission mechanism is matched with the trigger mechanism, so that when the rotating speed of the rotating shaft is too high, a circuit of the execution mechanism is switched on, the effect of driving an inner shrinkage piece to shrink towards the inner side is achieved, and the purpose of pushing an extension piece to extend towards the outer side is effectively achieved; therefore, the rotating area of the rotating shaft is increased, the rotating speed of the rotating shaft is effectively reduced under the obstruction of viscous liquid, the rotating shaft is in a stable rotating speed state, serious abrasion of internal parts of the aerator is avoided, and the service life of the centrifugal aerator is prolonged.
Owner:济南梦嘉宏环保科技有限公司

Variable-operating-area lifting platform

The invention discloses a variable-operating-area lifting platform which comprises a plurality of flat plates arranged in the vertical direction, wherein a height adjusting component is mounted between any two adjacent flat plates, and comprises a driving component and at least two parallelly-arranged connecting rods; both ends of each connecting rod are rotationally connected with the surfaces of the two adjacent flat plates correspondingly; one of the connecting rods is driven by the driving component to rotate; the corresponding connecting rods are driven by the driving component of each height adjusting component to rise, so that the distance between the adjacent flat plates is increased and the flat plates are in a rising state; and the corresponding connecting rods are driven by the driving components of the multiple uppermost height adjusting components to topple, so that the flat plates are stacked in a staggered manner. According to the variable-operating-area lifting platform, the multiple flat plates are arranged in the height direction in a staggered manner; the multiple uppermost flat plates move laterally, are lowered in height, and are stacked together; the uppermost operating area is convenient to expand; and furthermore, the variable-operating-area lifting platform can serve as a cargo storage rack, thereby reducing the stacking area of stacked cargos.
Owner:济南金力液压机械有限公司

Physics auxiliary experiment table

The invention relates to a physics auxiliary experiment table. The physics auxiliary experiment table comprises an experiment table body and supporting legs matched with the experiment table body; thephysics auxiliary experiment table is also provided with auxiliary table tops, and the auxiliary table tops are detachably and fixedly connected with the experiment table body; and an operation tabletop is arranged on the surface of the experiment table body, and the operation table top is rotatably connected with the surface of the experiment table body. According to the physics auxiliary experiment table, the auxiliary table tops are arranged, the operation area of the experiment table is increased, meanwhile, the auxiliary table tops can be freely disassembled and assembled according to needs, and the disassembly and assembly are simple and convenient in a splicing mode; the auxiliary table tops are designed to be consistent with the height of the experiment table body, so that the area of the whole operation surface is enlarged, and the utilization rate is increased; and the auxiliary table tops are connected with the experiment table body through sliding rails, and when needed,the auxiliary table tops can be pulled out, and after use, the auxiliary table tops can be pushed back.
Owner:GANSU NORMAL UNIV FOR NATTIES

Auxiliary mounting bracket for water and electricity mounting

PendingCN112720376AImprove securityReduce supporting objectsWork benchesBuilding renovationPower apparatus
The invention relates to the technical field of building decoration equipment, and discloses an auxiliary mounting bracket for water and electricity mounting. The auxiliary mounting bracket comprises a base, wherein a vertical rod I is fixedly connected to the base, a balancing device, a pipeline temporary storage device, a lifting clamping device, a lifting power device, a horizontal rotating angle fixing mechanism and a releasing device are arranged on the vertical rod I, a second standpipe rotates, the part, in a first standpipe, of the second standpipe extends to push a first rotary disc to move towards a roof, when balls on the first rotary disc makes contact with the roof, an installation worker stands on a first supporting plate, the balls make contact with the roof to form a fulcrum, the worker on the first supporting plate exerts downward force on the first supporting plate, supporting force applied to the balls by the roof is used for balancing the gravity of workers on the first supporting plate, supporting objects on the ground are effectively reduced by transferring supporting points for balancing the gravity of the workers on the first supporting plate to the roof from supporting of the ground, the utilization rate of the ground is increased, stumbling to the workers on the ground is reduced, and the safety effect is improved.
Owner:童品跃

New energy ultrasonic roll film welding machine

InactiveCN109291442AImprove welding convenienceIncrease productivityNew energyEngineering
The invention discloses a new energy ultrasonic roll film welding machine in the technical field of roll film welding machines. The new energy ultrasonic roll film welding machine comprises a base, the left and right sides of the base are each provided with a roll film installing opening. A roll film installing frame is arranged in the middle of the roll film installing opening in the left side. Aroll film is installed on the roll film installing frame. A connecting lug is arranged on the left side of the top of the base. A roller installing plate is hinged to the top of the connecting lug. Two sets of steering rollers are rotationally connected to the front side of the roller installing plate. A first lug block is arranged on the left side of the top of the roller installing plate. An electric push rod installing frame is arranged on the rear left side of the top of the base. The new energy ultrasonic roll film welding machine is simple in structure, welding convenience of the ultrasonic roll film welding machine is improved, production efficiency of a factory is improved, the height of the steering roller on the left side can be adjusted through an electric push rod, the heightof the right steering roller can be adjusted through a screw rod, and thus the new energy ultrasonic roll film welding machine can adapt to film welding of different-height articles.
Owner:合肥泽尼特新能源有限公司
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