135results about How to "Time-saving and labor-saving disassembly" patented technology

The invention provides a method for recycling, classifying and utilization of construction solid waste. The method includes the following steps that 1, a construction solid waste collection device collects construction solid waste, and then the construction solid waste is classified, screened, recycled and crushed; 2, a metal and non-metal screening device screens metal garbage and non-metal garbage, screening of wood garbage and solid concrete is manually performed, a wood crusher is used for crushing wood garbage to serve as other building auxiliary materials, and the selected solid concreteis then crushed by a crusher to obtain paving subgrade materials; 3, the paving subgrade materials are classified and screened through screening devices used for different sizes of solid concrete, and A-particle-size solid concrete and B-particle-size solid concrete are screened out for standby application; 4, the paving subgrade materials are prepared; 5, paving, repeated compaction and acceptance are performed in sequence. The components of the obtained paving subgrade materials are simple, the construction solid waste is used for recycling, crushing and reuse, the processing efficiency ishigh, the processing cost is low, the comprehensive utilization rate is high and the method is worth popularizing.

The invention relates to a pneumatic valve locking plate dismounting device, comprising a bottom plate, an upright post, an air cylinder, a connecting rod, a movable frame, a locking plate dismounting mechanism and a valve head pad. The locking plate dismounting mechanism comprises a valve spring compressor, an arm of force of the valve spring compressor and a locking plate placing device; the upright post is fixed on one side of the bottom plate, the air cylinder is fixed between an upper fixing plate and a lower fixing plate, the top of an air cylinder piston is fixedly connected with the connecting rod, the other end of the connecting rod is fixedly connected with the movable frame, the movable frame is connected with the other upright post in a sleeved manner, the arm of the valve spring compressor is fixed on the movable frame, the valve spring compressor is vertically connected with the arm of force of the valve spring compressor, the locking plate placing device is embedded in the valve spring compressor; two air valves with control handles are arranged on the side face of a shell of an air valve control box fixed on the fixing plate, a barometer is arranged between the joints of the air valve and the air cylinder; and the air valve head pad is arranged on the bottom plate. By adopting the invention, the locking plate of the cylinder cover can be mounted and dismounted with less time, less labor, precise operation and high efficiency.

The invention provides a rapid assembly type protection device based on building construction, belongs to the technical field of building construction, and aims at solving the problems that when an existing protection shed is assembled, connection needs to be conducted through a large number of bolts, so that time and labor are wasted when the protection shed is assembled, disassembly is troublesome, and the practicability of the protection shed is reduced. The rapid assembly type protection device comprises eight supporting columns, and each supporting column is connected to a concrete base through four fastening clamp nuts; when the protection shed is assembled, reinforcements are clamped between the two front and rear adjacent supporting columns, then limiting mechanisms slide into theupper sliding rails and the lower sliding rails, so that the limiting mechanisms are effectively limited, then a protective top plate is clamped into the upper ends of the supporting columns, the assembly operation of the protective shed is completed, and the large number of bolts are not needed for connection in the whole assembling process, so that time and labor are saved when the protection shed is assembled, and then the practicability of the protective shed is improved.

The invention provides a noodle pressing machine. The noodle pressing machine comprises a cylindrical feeder hopper, an extruding plug, a pushing rod and a forming plate, wherein the extruding plug is connected inside the feeder hopper by a thread; the pushing rod is fixedly connected above the extruding plug; the forming plate is provided with an internal thread; the forming plate is connected to the bottom part of the feeder hopper by the thread; a plurality of forming holes are formed in the forming plate; a plurality of vertical anti-sliding ribs are arranged on the outer peripheral surface of the forming plate; an outwards-projected bump is arranged on one side of the outer peripheral surface; and the cross section of the bump is triangular. The technical proposal is adopted, so that the anti-sliding ribs increase the contact area of a tool or hand when the forming plate is dismounted; and the bump is arranged, so that a force-applying supporting point is provided in a dismounting process, and the forming plate is easier to unscrew. Besides, the noodle pressing machine has the advantages of simple structure, time and labor saving in dismounting, and the like.

The invention discloses a one-stop type disassembling process for a small-sized automobile. The one-stop type disassembling process for the small-sized automobile comprises slide rails; the number ofthe slide rails is two; and slide grooves are formed in the tops of the slide rails. According to the one-stop type disassembling process for the small-sized automobile, through coordination of a cutting frame, a cutting device, an adjusting frame, rolling wheel carriers, rolling wheels, a motor, a rotating shaft, a rotating disc, a first electric telescopic rod, a first fixing disc, a treatment box, a compression box, a supporting frame, a second motor, a threaded rod, a threaded sleeve, first hydraulic rods, second fixing discs, a second hydraulic rod, a first extrusion plate, a third hydraulic rod, a second extrusion plate, driving mechanisms, crushing rollers, discharging inclined plates, a screening box, a magnetic separator, a fan, an article storage box and a material fetching device, the problem that the disassembling efficiency of the traditional one-stop type disassembling process for the small-sized automobile is low is solved; and the one-stop type disassembling process forthe small-sized automobile has the advantages that the disassembling is efficient, time and labor are both saved during disassembling, the disassembling effect is good, and the disassembling efficiency is greatly enhanced.

The invention provides a pouring formwork and wall pouring equipment, and belongs to the field of building operations. The pouring formwork comprises a formwork body, a vertical lifting mechanism, a transverse motion mechanism and a pulley assembly. The vertical lifting mechanism is in drive connection with the formwork body and drives the formwork body to move in a reciprocating lifting mode in the vertical direction. The pulley assembly is installed at the bottom of the vertical lifting mechanism. The transverse motion mechanism is in drive connection with the formwork body, drives the vertical lifting mechanism to move in a reciprocating mode in the direction perpendicular to the board of the formwork body, and drives the formwork body to move synchronously. When in use, the pouring formwork is high in automation degree and more flexible and convenient to operate, time and labor are saved when the pouring formwork is disassembled, the construction cycle can be shortened, and the construction time is shortened.

The invention discloses a non-woven cloth production line which comprises an opening device, a combing machine, a lapping machine, a needle-punching device and an uncoiler, wherein the opening device, the combing machine, the lapping machine, the needle punching device and the uncoiler are sequentially connected. The opening device comprises a first opening mechanism and a second opening mechanism, the first opening mechanism comprises a first opening machine and a first cotton conveying fan connected with the first opening machine, the second opening mechanism comprises a second opening machine and a second cotton conveying fan connected with the second opening machine, and a dust proof vibrating cotton box is disposed between the first opening machine and the second opening machine; the needle-punching device comprises a pre-needling machine, a reversing needling machine and at least one main needling machine, the pre-needling machine, the reversing needling machine and the at least one main needling machine are sequentially connected, the pre-needling machine and the main needling machine are respectively provided with an upper fulcrum parking portion, each upper fulcrum parking portion comprises an auxiliary transmission mechanism and a pneumatic mechanism, and the auxiliary transmission mechanism and the pneumatic mechanism of each upper fulcrum parking portion are arranged on one side of the machine frame. The production line is smooth in connection, and the surface of produced non-woven cloth is smooth, uniform in weight and thickness and good in air permeability.

The invention relates to the technical field of hyperactivity disorder monitoring, in particular to an attention deficit hyperactivity disorder diagnosis system based on a brain wave analytical algorithm. The system includes a monitoring diagnosis block, the inner side surface of the monitoring diagnosis block is an arc-shaped surface suitable for a human head structure; a processor is arranged inthe monitoring diagnosis block; a brain wave collecting electrode is also arranged on the inner side surface of the monitoring diagnosis block; the top end of the brain wave collecting electrode is also connected with a conducting layer; telescopic belts are further installed on the left side and the right side of the monitoring diagnosis block through connecting mechanisms, the processor comprises a data acquisition chip, a signal receiver, an algorithm module, a diagnosis grading module, a data storage module, a signal transmission module and a cloud background terminal, and the signal transmission module is further connected with mobile equipment. According to the invention, real-time brain wave data monitoring and analysis processing in a conventional state or within the playing timeof children are realized, so that the monitoring data is more accurate and representative, and the practicability and high efficiency of the product in use are greatly improved.

The invention discloses a road surface joint-cutting machine being convenient to repair a blade in road construction. The machine comprises a housing; moving wheels are arranged at four corners of thebottom of the housing; a water tank is fixedly connected to the midpoint of the top of the housing; and a push handle is fixedly connected to the rear side of the top of the housing. A liquid fillinghole is formed in the top of the inner wall of the water tank; and a liquid filling plug matching the liquid filling hole is arranged at the part corresponding to the liquid filling hole at the top of the water tank. According to the invention, on the basis of mutual cooperation of a straight slot, a baffle plate, a vertical plate, a first limiting block, a supporting block, a second limiting block, a reinforcing block, a fixing block, a limiting plate, a nut, a threaded rod, a rotating rod and a tapered block, a protective cover is convenient to dismount and thus the road surface joint-cutting machine for road construction is convenient to repair the blade, so that the staff member only spends less time and effort in completing dismounting of the blade protective cover. The time and effort spend in whole dismounting process are saved; the work load of the personnel is reduced substantially; and the blade maintenance work of the road surface joint-cutting machine becomes convenient.

The invention provides a display device and a television. The display device comprises a display panel assembly, a back plate, a rubber frame and a clamping piece. The display panel assembly comprises a display panel and a connecting piece fixedly arranged on the periphery of the back of the display panel. The rubber frame is arranged on the outer periphery of the back plate and fixedly connected with the back plate, a first through hole is formed in the lateral side of the rubber frame, and a gap is arranged between the back plate and the rubber frame. The clamping piece can be accommodated in the first through hole, one end of the clamping piece can be clamped with the connecting piece, and the other end of the clamping piece can be inserted into the gap to enable the display panel and the back plate to be fixedly connected with the rubber frame. By fixedly connecting the display panel assembly, the back plate and the rubber frame through the clamping piece, production and manufacture cost is effectively reduced, production efficiency is improved, and market competitiveness is improved.

The invention belongs to the technical field of electric cabinets, particularly relates to an electric cabinet electric leakage alarm device, and provides the following scheme for solving the problemthat an electric leakage detector is inconvenient to install: the electric cabinet electric leakage alarm device comprises an electric cabinet and the electric leakage detector, a warning lamp and a buzzer are installed on one side of the top of the electric cabinet, and a dust removal mechanism is arranged in the middle of the top of the electric cabinet. A fixed plate is welded to the bottom ofone side of the electric leakage detector, a lower fixed ring is welded to the top of the fixed plate, a movable plate is arranged above the fixed plate, an upper fixed ring is welded to the bottom ofthe movable plate, L-shaped rods are welded to the two ends of the movable plate, and sliding grooves are vertically formed in the lower middle portions of the two opposite sides of the electric leakage detector. Locking mechanisms are arranged in the sliding grooves, and first inserting columns are welded to the four corners of the side face of the electric leakage detector. The electric leakagedetector is time-saving and labor-saving to mount and dismount, the working efficiency is improved, the cable is prevented from falling off from the wiring terminal, and the electric leakage detection can be carried out all the time.

The invention discloses a complex pull-out mechanism. The complex pull-out mechanism comprises a bearing outer ring pull-out mechanism and a half shaft pull-out mechanism, and the bearing outer ring pull-out mechanism and the half shaft pull-out mechanism are arranged on a same supporting component (2) and in transmission connection with a same transmission component (1). The bearing outer ring pull-out mechanism further comprises a linkage component I and a bearing outer ring component (4), and the half shaft pull-out mechanism comprises a linkage component II and a half shaft (6). A screw rod (11) in the transmission component (1) is in a double-screw-direction thread structure, a left-hand thread section (112) of the screw rod (11) is in matched screw connection with the transmission component (1), and a right-hand thread section (111) of the screw rod (11) is in matched screw connection with the linkage component I or the linkage component II. The complex pull-out mechanism has the advantages of reasonable structural design, simple manufacturing process, convenience in use, safety, reliability, effectiveness in production efficiency improvement and significant reduction of production and use costs.

A pull-out device for internal and external rings of bearing is composed of a cylindrical main body, a screw bolt passing through said main body and coupled to main body via spiral threads, a cylindrical slide block seat fixed to the end of main body and with several through holes and an external diameter slightly less than the internal diameter of the external ring of bearing, several slide block in said through holes on slide block seat, and a lining sleeve of main body, whose end can be inserted in slide block seat to project slide blocks out of the slide block seat.

The invention discloses a turnover lifting tool which comprises a main beam and balance beams. The balance beams are mounted at the two ends of the main beam, the main beam and the balance beams are connected through connecting shafts, the balance beams rotate by 360 degrees with the axes of the connecting shafts as axes, and the two ends of each balance beam are connected with crane hooks through rigging. In the turnover process, the main beam is mounted on a main tower, the middle of the main beam is connected with the main tower, and the main beam and the main tower rotate relative to the balance beams at the same time to achieve turnover of the main tower. The turnover lifting tool is reasonable in structural design, and turnover and lifting are carried out at the same time. The connecting faces of the balance beams and the rigging are in arc design, so that the service life of the turnover lifting tool is prolonged. Due to the design of a hydraulic device, the balance beams can be fast detached, and production efficiency and safety degree are effectively improved through the turnover lifting tool.

The invention discloses surveying instrument positioning equipment for engineering surveying and a positioning method of the surveying instrument positioning equipment. The surveying instrument positioning equipment comprises a tripod, a lifting mechanism fixedly connected to the top end of the tripod, a positioning mechanism fixedly connected to the top end of the lifting mechanism, and a total station detachably arranged at the top end of the positioning mechanism. According to the surveying instrument positioning equipment, lifting and lowering of the total station can be realized, comparedwith a traditional adjusting mode, time and labor are saved, the equipment is suitable for being used by users with different heights, use is more flexible, in addition, time and labor are saved whenthe total station and the tripod are disassembled and assembled, the surveying and mapping time is shortened, and the use requirements of engineering surveying and mapping are greatly met.

The invention discloses a joint with a spirally-reinforcing rubber pipe. Spiral grooves are formed in the middle of the rubber pipe, and a spiral spring is mounted in each spiral groove in a matched and sleeved manner. The joint has the advantages of simple structure and high strength; through the spiral springs, radial expansion amplitude of the rubber joint can be constrained, and traction and compression resisting effects on the axial direction of the rubber joint can be realized to achieve good axial compensation effect, so that pressure bearing capacity can be improved, and service life can be prolonged; the rubber joint and flanges are fully fitted and fixed together, so that sealing strength when the rubber joint is connected with a pipeline can be improved, and end structure of the rubber pipe is simplified.

The invention relates to a tool set for changing a downhole damaged casing and cementing. The tool set comprises a hydraulic internal cutter, a downhole junk fishing tool, a remaining casing milling tool and an external insertion butt joint cementing tool, an external insertion guiding shoe is arranged at the lower end of the external insertion butt joint cementing tool, an extension cylinder is rotatably connected at the upper end of the external insertion guiding shoe, a circulating cylinder is rotatably connected at the upper end of the extension cylinder, a plurality of rows of ash injection holes are arranged on the peripheral wall on the middle section of the circulating cylinder, a sealing cylinder is rotatably connected at the upper end of the circulating cylinder, an R-shaped sealring is embedded at the upper part of a female thread at the lower end of the sealing cylinder, a barb faces upwards, a butt joint is rotatably connected in the female thread at the upper end of thesealing cylinder, a conical female thread is arranged at the upper end of the butt joint, an inner chamfer of the butt joint is arranged on a lower port of the butt joint, the upper part of the innerchamfer is narrow, and the lower part of the inner chamfer is wide; and the inner diameters of the sealing cylinder, the circulating cylinder, the extension cylinder and the external insertion guidingshoe are adaptive to the outer diameter of the casing. The tool set for changing the downhole damaged casing and cementing is simple in structure and is convenient to operate, the production cost andthe downhole risk are low, the operations of butt jointing and setting are simple, and the sealing reliability is high.

The invention discloses a detachable filter cartridge, a filter cartridge component and a water purifier. The detachable filter cartridge comprises a cylindrical casing, a cover, an end socket and a filtering structure. The filtering structure is fixed to the bottom surface of the end socket. The cover is fixedly connected to the top of the side wall of the end socket. The casing is screwed to the bottom of the end socket. A limiting structure for preventing withdrawal of the casing is arranged at the joint between the cover and the casing. A cavity for accommodating the filtering structure is formed by the end socket and the casing. The filtering cartridge component comprises a filtering bottle body and a filtering bottle cap. The filtering bottle cap is fixed to the filtering bottle body. A chamber is formed by the filtering bottle body and the filtering bottle cap. The detachable filter cartridge is arranged in the chamber. The water purifier comprises the filter cartridge component. The filter cartridge component is of a detachable structure, the filter cartridge can be cleaned and replaced conveniently, the service life of the filter cartridge is prolonged, the use cost of the water purifier is reduced, and the user experience is greatly improved.

The invention provides a satellite antenna, comprising an antenna surface structure, a feed source and a support device; the support device is connected onto the antenna surface structure to support the same; the satellite antenna is characterized in that the antenna surface structure is formed by more than two antenna surface units and comprises a first state and a second state; in the first state, all antenna units are spliced to form a reflection surface of the antenna surface structure; in the second state, at least one antenna surface unit and the adjacent antenna surface units are arranged angularly. The antenna surface structure is positioned in the second state when the satellite antenna is transported, so as to reduce the size of the satellite antenna and transport the satellite antenna under the condition that the antenna surface structure is not split or the connection relation between the antenna surface structure as well as the antenna surface units thereof and the support device is not removed or incompletely removed, so labor and time are saved when the satellite antenna is detached or transferred.

The invention discloses a centrifugal fixture. The centrifugal fixture comprises a fixture body provided with a cavity, and two or more clamping jaws arranged on the fixture body; the clamping jaws are hinged to the fixture body, one ends extend into the cavity, and the other ends extend to the end part of the fixture body; a positioning disc is arranged at the end part of the fixture body; and a stop pin for limiting a workpiece is arranged on the positioning disc. The centrifugal fixture rotates along with a main shaft of a machine tool to generate centrifugal force; the clamping jaws swing around shaft pins to automatically clamp the workpiece; and the centrifugal fixture is simple in structure, convenient for operation and reliable in clamping, saves both time and labors in workpiece unloading, is low in labor intensity of operators, and is high in production efficiency.

The invention relates to a large-diameter high-temperature bolt dismounting tool. The large-diameter high-temperature bolt dismounting tool comprises an upper cover plate, a lower cover plate, pin rollers and a shell. The upper cover plate and the lower cover plate are mounted on the two sides of the shell respectively. The two ends of each pin roller are mounted in a sliding groove of the upper cover plate and a sliding groove of the lower cover plate respectively, and the middle parts of the pin rollers slide in grooves which are gradually lengthened in the radial depth direction of the shell. Compared with the prior part, the large-diameter high-temperature bolt dismounting tool has the advantages of being capable of protecting spare parts, convenient to maintain, safe, reliable and the like.

The invention relates to a shaft coupling device in a pump body and relates to the shaft coupling device. In the shaft coupling device, a clamping groove is formed at the front ends of a pump shaft and a motor shaft; a connecting clamping sleeve is arranged on the clamping groove; a fixed sleeve is arranged on the outer diameters of the connecting clamping sleeve, the pump shaft and the motor shaft; a key groove is formed on the fixed sleeve, the pump shaft and the motor shaft correspondingly; a fixed key is arranged in the key groove; the pump shaft and the motor shaft are positioned through the connecting clamping sleeve; torque is transmitted for the motor shaft and the pump shaft through the connection of the fixed key and the fixed sleeve, so that the deadlock condition caused by the threaded connection of the motor shaft and the pump shaft is avoided; the shaft coupler is easy to disassemble during maintenance, so that the condition that the shaft coupler cannot be disassembled is avoided; time and labor are saved during disassembly, without waste of the motor shaft; the maintenance cost is low; and the shaft coupling device is applicable to various liquid pumps.

The invention discloses an unmanned aerial vehicle transporting device capable of being mounted and dismounted conveniently. The unmanned aerial vehicle transporting device capable of being mounted and dismounted conveniently comprises a supporting outer frame and a heat dissipation port, wherein the middle end of the left outer wall of the supporting outer frame is fixedly connected with a lead screw; a rotating bearing is arranged at the lower end of the right outer wall of the supporting outer frame; the lower end of the rotating bearing is fixedly connected with a first telescopic rod; a second telescopic rod is arranged at the lower left end of the first telescopic rod; a box door is arranged on the front wall of a transporting box; the right end of the box door is fixedly connected with a hinge; a clamping block is arranged at the lower end of the box door; a groove is formed in the outer wall of the clamping block; an external thread tooth block is arranged on the outer wall ofthe lower end of a stretching push rod; and an internal thread groove is formed in the inner wall of a buffer plate. According to the unmanned aerial vehicle transporting device capable of being mounted and dismounted conveniently, a fixing block is arranged, the height of the fixing block is made to be consistent with the height of a bottom plate by adjusting the angle between the first telescopic rod and the second telescopic rod, the adhesive force of the fixing block to the ground is improved, and the stability of the device is improved.

The invention discloses a strander and a wire coil locking device thereof. The wire coil locking device comprises a supporting shaft, a threaded sleeve, a positioning sleeve, a positioning pin, a nut sleeve and a handle, wherein outer thread is arranged on the supporting shaft; the inner wall of the threaded sleeve is provided with inner thread matched with the outer thread; the outer diameter of the threaded sleeve is smaller than the diameter of a center hole of the wire coil; the positioning sleeve comprises a transverse positioning end clamped between the threaded sleeve and the wire coil to stop the wire coil from moving towards the threaded sleeve direction; the positioning sleeve also comprises a radial positioning end connected with the transverse positioning end and corresponding to the outer wall of the threaded sleeve; the radial positioning end is provided with a pin hole for enabling the positioning pin to pass through; and the outer wall of the threaded sleeve is provided with a positioning hole for enabling the positioning pin to be inserted. Due to such arrangement, the wire coil locking device for the strander provided by the invention can avoid problems that the nut gets loose, disassembly of the wire coil is time-consuming and labor-consuming, the operation is convenient, and the supporting shaft and the positioning pin can be prevented from being damaged.

The invention discloses a winding test machine applicable to carbon fiber composite core rods. The winding test machine comprises a rack, wherein the upper surface of the rack is vertically and fixedly connected with a first supporting plate; a rolling bearing is fixedly arranged in the first supporting plate; the inner wall of the rolling bearing is fixedly connected with a threaded rod; a protective cover is movably connected to the upper surface of the rack; a deep groove matched with the bottom end of the protective cover is formed in the upper surface of the rack; the right side face of the first supporting plate is fixedly connected with a driving mechanism; the shaft wall of the threaded rod is sleeved with a winding mechanism in a sliding manner; and the upper surface of the rack is fixedly connected with a core rod surface cleaning mechanism. The winding test machine disclosed by the invention is convenient to operate, the first circular plate and the second circular plate canrealize core rod winding without dropping, and the core rod winding effect is improved. Moreover, the detachment process is time-saving and labor-saving, the core rod winding efficiency is improved,the core rod surface can be cleaned, and the core rod winding quality is improved.

The invention relates to a high-precision hobbing tool for gears and an application method thereof. The upper end face of a conical seat is provided with a through hole; a slide rod is arranged in thethrough hole; a shank of the slide rod is sleeved with an ejector sleeve; a circular presser plate is welded or screwed to the shank of the slide rod; a plurality of elastic pull cords are verticallyarranged between the circular presser plate and the ejector sleeve; an elastic presser plate is arranged at the upper end of the slide rod; the front of a first circular shaft segment is provided with an elongated through hole; the upper end face of a first shaft shoulder is provided with a circular groove, and a circular ejector block is arranged in the circular groove; the bottom of the circular groove is provided with two ejector rod through holes; the front of the slide rod is provided with a square hole, and a square rod is arranged in the square hole; a gear is mounted on the upper endface of the first shaft shoulder; a plurality of steel balls are arranged between the inner wall of the gear and the outer wall of a conical shaft segment; an ejector rod is arranged on each side of the upper end face of the square rod. The high-precision hobbing tool for gears is simple to operate, has low requirement on a user's application skills, and takes less time and manpower for clamping and demounting.

The invention relates to a cast-in-place continuous box girder formwork system which comprises a pile-supported cast-in-place continuous box girder support system, a cast-in-place continuous box girder outer die and a cast-in-place continuous box girder inner die; the pile-supported cast-in-place continuous box girder support system comprises distributive girders, bailey beams, bearing beams, buckling devices, steel stand columns, horizontal supporting rods, scissor supporting rods, connecting steel plates, flange plates, reinforcing ribs, a soft base layer, a hard base layer, pinch plate rings and cast-in-place piles; the cast-in-place continuous box girder outer die comprises flange plate dies, hinge bolts, back ribs, side dies, a bottom die, a safety net, supporting rods, an adjustablejacking, distribution beams, bailey beams, bearing beams, diagonal bracings and steel stand columns; the cast-in-place continuous box girder internal die comprises a steel panel, side ribs, second bolts, steel bars, supporting rods, adjustable jacking supports, jacking ribs, positioning steel bars and first bolts. The cast-in-place continuous box girder formwork system has the beneficial effects that a pile-supported steel stand column buckling device is adopted, so that a cast-in-situ bored pile steel stand column and an upper transverse bridge direction bearing beam can be quickly connectedand easily detached, and connection is safe and stable.

The invention discloses an overpressure valve for a hydraulic device and relates to the technical field of hydraulic devices. The overpressure valve comprises a valve body. An input port is formed inone end of the valve body while an output port is formed in the other end of the valve body. A fixing assembly is arranged on the outer side of the valve body in a sleeving manner. A valve cover is fixedly mounted at the upper end of the valve body, flanges are arranged at two ends of the valve body in a sleeving manner, a valve seat A is arranged at the bottom of the valve body, a spring seat A is mounted in the valve seat A, and a spring A is mounted at the upper end of the spring seat A. By arranging the valve body in a split structure, a defect that it is inconvenient to manufacture and form the valve body of a conventional overpressure valve as the valve body of the conventional overpressure valve is integrally formed is overcome, so that convenience is brought to production and manufacturing of the overpressure valve, and the overpressure valve is of relatively high practicality. By means of a rubber liner A, a seal ring A and a seal ring B which are arranged, the overpressure valve has multiple sealing structures, and overcomes the defect that the conventional overpressure valve is relatively poor in sealing effect, so that the sealing property of the overpressure valve is improved effectively, the service life of the overpressure valve is prolonged and the overpressure valve is suitable for being widely popularized.