63results about How to "Guaranteed vertical movement" patented technology

The invention relates to an optical engine and a lengthened piston thereof. The optical engine mainly comprises a piston top window part (1), a lengthened piston part (2), two groups of piston compression rings (3), two inconel C-shaped rings (4), a bolt (5), a transparent window (6), bushing rings (7) and (9), an oil control ring (8), a piston pin hole (10), an oil scraper ring (11) and the like, wherein the piston top window part (1) of the lengthened piston is connected with the lengthened piston part (2) through the bolt (5). The optical engine has a simple structure, and the transparent window is easy to disassemble; and simultaneously, the two groups of backing rings are arranged on the lengthening piston, so that the lengthening piston makes vertical motion along the axis of a cylinder liner (12).

The invention provides a multifunctional portal device of a suspension bridge pillar top, and belongs to the field of construction devices of suspension bridges. The multifunctional portal device of the suspension bridge pillar top comprises a field mounted portal body, wherein the field mounted portal body comprises a supporting truss system, a working platform, a catwalk turning cable saddle, a lifting system and a traction system; the working platform is connected to the upper end of the supporting truss system; the lower end of the supporting truss system is anchored to the suspension bridge pillar top through an anchoring system; and the catwalk turning cable saddle, the lifting system and the traction system are respectively connected with the supporting truss system. The multifunctional portal device of the suspension bridge pillar top is provided with the field mounted portal body, a portal is divided into different blocks which are assembled on a tower top, requirements on field hoisting are met, conveying, mounting and machining can be facilitated further, construction installation is simplified, the different blocks of the portal can be combined with the catwalk turning cable saddle at the tower top, the portal is stressed safely, effects of the portal can be fully achieved in various stages of installation construction of an upper structure of the suspension bridge, and multifunction of the portal is fulfilled really.

The invention relates to an air bag pressurization sealing method for a vacuum heat insulation plate. In the air bag pressurization sealing method, at least one pair of heat sealing strips are arranged in a frame in parallel, each pair of the sealing strips comprise an upper heat sealing strip and a lower heat sealing strip, and the air bag pressurization sealing method is characterized in that an air bag is arranged on the upper side of the upper heat sealing strip or/and on the lower side of the lower heat sealing strip; the sealing edges at the two ends of the vacuum heat insulation plate are placed between the upper heat sealing strip and the lower heat sealing strip; and high-pressure air is filled into the air bag, the expansion of the air bag is utilized for pushing the upper and the lower heat strip strips to approach each other and perform extrusion oppositely, and the purpose of sealing the vacuum heat insulation plate is realized. The air bag pressurization sealing method disclosed by the invention has the beneficial effects that an air bag sealing structure is simple, when sealing is performed, the force applied to the heat sealing strips is uniform, and the heat sealing effect is better.

The invention discloses an automobile welding conveying line, and belongs to the technical field of automobile white body manufacturing. The automobile welding conveying line comprises a first station arranged at the head end of the conveying line, a plurality of middle stations, and an empty station arranged at the tail end of the conveying line. The first station and the empty station are provided with jacking frames respectively. The jacking frame of the first station and the middle stations are provided with two conveying beams in parallel. The conveying beams are provided with supporting blocks matched with workpieces. The jacking frames and the conveying beams can synchronously ascend and descend through a synchronous jacking mechanism, and the conveying beams can move in the horizontal direction through a horizontal conveying mechanism. The automatic welding conveying line is simple in structure and easy to maintain. Meanwhile, automatic workpiece conveying can be achieved, workpiece positioning is accurate, the conveying efficiency is high, the workpiece conveying efficiency is greatly improved, and the multiple workpieces can be conveyed at the same time at a plurality of welding stations.

The invention discloses a metal pouring device which comprises a machine table. A horizontal beam component comprises a horizontal beam, a first hydraulic cylinder and a transmission mechanism. The first hydraulic cylinder is arranged on the side wall of a supporting column and drives the horizontal beam to rotate through the transmission mechanism. A left mould component comprises a left arm, a left template and a second hydraulic cylinder which is arranged on the left arm and is used for pushing the left template to move. A right mould component comprises a right arm, a right template and a third hydraulic cylinder. The right template is fixedly connected to a piston rod of the third hydraulic cylinder which is arranged on the right arm and is used for pushing the right template to move. The two ends of a mould set rotating hydraulic cylinder are connected with the left arm of the left mould component and the right arm of the right mould component respectively. The mould set rotating hydraulic cylinder moves in a stretching mode to drive the left arm and the right arm to rotate. According to the scheme, the left mould component and the right mould component can be separated easily, and accordingly separating of a metal product and a mould cannot damage the surface of the metal product.

The invention discloses a field hole-digging and pouring foundation pit concrete support pile structure and a manufacturing method thereof. The field hole-digging and pouring foundation pit concrete support pile structure comprises a plurality of concrete support piles with vertical non-prestressed reinforcing steel bars and a capping beam with reinforcing steel bars; the tops of the concrete support piles and the capping beam are anchored; the reinforcing steel bars, on the excavation side of a foundation pit, of the concrete support piles are the multiple post-tensioned prestressed reinforcing steel bars and the multiple non-prestressed reinforcing steel bars; each prestressed reinforcing steel bar is externally provided with a casing pipe; the tops of the prestressed reinforcing steel bars penetrate through the capping beam and protrude out of the top face of the capping beam; intervals allowing the prestressed reinforcing steel bars to vertically move are formed between the prestressed reinforcing steel bars and the capping beam; a prestressed reinforcing steel bar fixing device and a tensioning device are arranged on the top face of the capping beam; and the bottom ends of the prestressed reinforcing steel bars are connected with anchoring devices. The support pile structure enhances the flexural rigidity, flexural capacity and deformation resistance of a single pile and the overall structure of a concrete support pile.

The invention discloses a method for measuring the liquid viscosity coefficient through a spring ball system. According to the method, balls with close diameters and gradually increased densities are connected together through light springs with close lengths and rigidities to form the spring ball system. The system is soaked in experiment liquid with viscosity coefficient to be measured, forward releasing and backward releasing are conducted at the center of the liquid surface, the falling time of the whole spring ball system passing through two measurement points in to-be-measured liquid is measured, and the viscosity coefficient of the liquid is obtained by analyzing the balance relation of the internal action and the external load of the spring ball system. Compared with an existing method, the method has the advantages that the method is convenient and rapid to implement, whether balls reach a constant-speed falling stage is easily judged, the falling form of the system can be easily controlled, required instruments and equipment are simple, and the method is suitable for liquid viscosity coefficient theoretical research and also suitable for physics experiment teaching.

The invention provides a maintainable short-circuit protection device for an electrical system. The device comprises a sealed insulating shell, a switch box cover, a fixed ceramic tube, a fixed conductive column, an inclined conductive block, a shaking separation frame structure, an elastic drive frame structure, a bending magnetic isolation frame structure, a communication through hole, a sealing insulation base, a mounting groove, an automatic compensation connection frame structure, a bolt storage hole, a voltage and current detection circuit board, a display screen and an alarm, wherein the switch box cover is in screw connection with the right side of the sealed insulating shell; and the fixed ceramic tube is glued to the upper part of the inner side of the sealed insulating shell. The device of the invention has the beneficial effects that through the arrangement of a metal conductive column, an inclined touch cushion block, the inclined conductive block and the fixed conductive column, the contact area of the contact position can be increased through the inclined surfaces of the inclined touch cushion block and the inclined conductive block, and the inclined conductive block which is arranged in an inclined manner can play a role in limiting.

The invention discloses a small material transferring system suitable for an upper side of a pit. The system comprises a crane main beam, a crane cross beam and a crane carriage. A connecting box is arranged on the middle of the bottom end of the crane carriage, a hook is arranged on the bottom of the connecting box, fixed blocks are arranged on two sides of the bottom end of the crane carriage, a telescopic stop lever is arranged on the bottom of each of the fixed blocks, the other end of the telescopic stop lever is fixedly connected to a connecting rod, a connecting block is arranged on one end, far from the telescopic stop lever, of the connecting rod, insertion rods are arranged on the side walls of two ends of the connecting box, and a guide wheel is arranged in the connecting box. According to the system disclosed by the invention, by arranging the telescopic stop levers connected to the connecting box through the connecting rod, the connecting block and the insertion rods on the bottom of the crane carriage, a hook assembly does not swing when the crane carriage main body moves, so that the hook assembly descending to hook an object keeps a vertical movement and the hook assembly is precisely positioned.

The invention discloses an adjustable two-way float valve and a working method of the adjustable two-way float valve. The adjustable two-way float valve comprises a cylinder body, an upper valve seat,a lower valve seat and a buoyancy valve. A gas accelerating opening is formed in the upper portion of the cylinder body, and a plurality of liquid inlets are formed in the lower portion of the cylinder body. The upper valve seat and the lower valve seat abut against the upper end and the lower end of the cylinder body in a press mode through an upper flange and a lower flange correspondingly. A float valve body is arranged in the cylinder body, and comprises a float cylinder. The upper end and the lower end of the float cylinder are connected with an upper conical valve body and a lower conical valve body correspondingly, and the upper end of the upper conical valve body and the lower end of the lower conical valve body are connected with an upper flexible guide rod and a lower flexible guide rod correspondingly. A plurality of buoyancy adjustors are further arranged on the float cylinder. The upper flexible guide rod and the lower flexible guide rod are matched with guide holes formed in the middle of the upper flange and the middle of the lower flange correspondingly, the upper flange is connected to a gas outlet, and the lower flange is connected to a liquid outlet. The adjustable two-way float valve and the working method of the adjustable two-way float valve can avoid the engineering phenomena that liquid flows out of the gas outlet, and gas flows out of the liquid outlet, and can greatly reduce the labor intensity of workers.

The invention discloses a dustproof device for road construction, and belongs to the technical field of road construction equipment. The dustproof device comprises a dustproof device a and a dustproofdevice b, wherein the dustproof device a and the dustproof device b are flexibly connected through a telescopic assembly; the dustproof device a comprises an absorption box, a blocking assembly and adust collection assembly; two groups of upright posts are fixed on the upper surface of the absorption box; a guide rod is fixed between each group of upright posts; the blocking assembly comprises two fixing plates; an electric telescopic rod is embedded and fixed in each fixing plate; and the dust collection assembly comprises a first dust collection plate, a third dust collection plate and a plurality of second dust collection plates. Through the arrangement of the dust collection assembly, the blocking assembly, the telescopic assembly and the absorption box, the dust-containing air at different space heights in the building site can be absorbed; the work environment of workers is improved; the moving and the installation are convenient; high wind-resistant capability is realized; theservice life of the device is prolonged; washing liquid in the absorption box can wet the air and dissolve partial dust in the air; and therefore, the body health of surrounding citizens is protected.

The invention discloses an adjustable multi-point tunneling device for gypsum mine mining. The adjustable multi-point tunneling device comprises a moving seat, a guide groove, a motor I, a longitudinal screw rod, wheels, a moving device, a lifting rotating device and a tunneling mechanism, the device is reasonable and simple in structure, low in production cost, convenient to install and complete in function, the arranged moving device can enable a half internal thread groove to clamp a longitudinal screw rod through extension of a transverse oil cylinder, and therefore it is guaranteed that the longitudinal screw rod can drive a movable base to move longitudinally as a whole when rotating; the distance between the plurality of tunneling mechanisms can be adjusted; the lifting rotating device is arranged, the tunneling mechanism can be driven to move up and down through telescopic movement of a vertical oil cylinder, a third motor can drive the tunneling mechanism to rotate integrally through a first driving gear, a first driven gear and a rotating disc, and therefore the requirements for mining at different heights and mining at different angles of the tunneling mechanism are met; and the mining efficiency is also improved.

The invention relates to the technical field of shoe racks, and discloses a shoe rack allowing convenient observing and fetching. The shoe rack comprises a rack body; the surface of the front side of the rack body is provided with shoe grooves; the interior of each shoe groove is fixedly connected with a partition plate; the interior of each shoe groove is divided into an upper area and a lower area by the partition plate; the interiors of the upper area and the lower area are slidably connected with drawing mechanisms; an upper pull plate can be driven to move outwards by holding an upper grip; the pull plate can drive shoes placed on a placing plate to move while moving outwards; at the moment, a user can pull out a lower pull plate outwards when not pushing the upper pull plate into the corresponding shoe groove; when the lower pull plate is pulled outwards, a vertical groove drives a tilting rod to rotate; at the moment, the tilting rod is inclined and can drive the upper pull plate to automatically reset and move to enter the shoe groove to be closed according to the lever principle, so that a user does not need to sequentially close and open the shoe grooves to select shoes, the normal use state of the user is guaranteed, meanwhile, the use convenience of the user is improved.

The invention belongs to the field of medical instruments, and particularly discloses a transfusion device for an intensive care unit, comprising a transfusion stand. A bottle changing mechanism is fixed on the transfusion stand. The bottle changing mechanism comprises a transfusion cavity and a plurality of liquid separation cavities located above the transfusion cavity, the transfusion cavitiesare communicated with a transfusion main pipe, the plurality of liquid separation cavities and a plurality of transfusion bottle placing tables are correspondingly arranged, the liquid separation cavities are communicated with transfusion branch pipes, free ends of the transfusion branch pipes are provided with bottle stopper puncture devices, sliders are vertically slidably connected between theliquid separation cavities and the transfusion cavities, reset pieces are connected between the sliders and the transfusion cavities, the sliders are connected with drivers for driving the sliders tomove vertically and downwardly, the sliders are provided with liquid outlets, the liquid outlets are internally provided with hollow blocking buoyancy balls in a clamping manner, the heights of the buoyancy balls are the same, one blocking buoyancy ball is not internally filled with gravity particles, and the other blocking buoyancy balls are all internally filled with gravity particles, and the adjacent blocking buoyancy balls are communicated with each other through hoses. The transfusion device can achieve automatic bottle changing.

The invention discloses an automatic packing device. The device comprises a paper scrap collecting mechanism, an automatic packing mechanism and a film laminating mechanism; the paper scrap collectingmechanism is provided with a first feeding port and a first discharging port, and the first feeding port is connected to a paper scrap discharging port of a winnowing mechanism through a material conveying blower; the automatic packing mechanism comprises a machine body, a hydraulic cylinder and a pressing plate; a second feeding port is formed in the machine body, and the first discharging portand the second feeding port can be connected through a screw conveyor; the hydraulic cylinder extends downwards to form a hydraulic rod, and the bottom end of the hydraulic rod is connected to the pressing plate; and the film laminating mechanism comprises a base, a motor is arranged on the base, and an output shaft of the motor is connected to a rotating disc; and a guide rod is further fixedly connected to the base, the guide rod is located on one side of the rotary disc, the guide rod can be used for placing a plastic film with a reel, and the reel of the plastic film can rotate relative tothe guide rod. According to the automatic packing device, paper scraps can be packaged and recycled, so that the packing efficiency can be greatly improved, and the labor intensity of workers is reduced.

The invention discloses a pressing-fit machine for new material production. The pressing-fit machine for new material production structurally comprises a base, a bearing device, a pressing element, acylinder, an electric cabinet, an alarm, a working box and a controller, wherein the bearing device is installed on the base; the pressing element is arranged above the bearing device; the pressing element is connected with the working box through the cylinder; the controller is connected to the right side of the working box, and the left side of the working box is connected with the electric cabinet; the alarm is arranged above the electric cabinet; the bearing device comprises a bearing plate, a groove, jacking springs, buffer devices and a guide sleeve; an annular groove is formed in the bottom of the bearing plate; the groove is matched with the guide sleeve; the guide sleeve is fixed to the base; the buffer devices are arranged at the two sides of the guide sleeve separately; and thefour corners of the bearing plate are connected with the base through the jacking springs separately. The pressing-fit machine for new material production has the following beneficial effects: a vertical force can be converted to a horizontally-rotating force through the buffer devices, a vertically-pressing force is decomposed and converted, and the generation of a counter-acting force is reduced, so that the pressing-fit working is facilitated.

The invention discloses an engine piston connecting rod detection device which comprises a fixed cylinder, a limiting opening is formed in the outer wall of the top of the fixed cylinder, a movable cylinder is slidably connected to the inner wall of the limiting opening, sliding holes are formed in the outer walls of the periphery of the fixed cylinder, movable rods are slidably connected to the inner walls of the sliding holes, and a movable block is fixedly connected to one end of each movable rod; and an arc-shaped plate is fixedly connected to the other end of the movable rod, an inclinedchamfer is formed in one side edge of the movable block, a circular chamfer is formed in the outer wall of the movable cylinder, the outer wall of the circular chamfer is matched with the outer wall of the inclined chamfer, a measuring mechanism is arranged in the movable cylinder, and an auxiliary mechanism is further arranged in the movable cylinder. According to the invention, the fixed cylinder can be fixed in the mounting holes with different inner diameters, engines with different models can be detected, detection is more flexible, the fixing mode can ensure that the measuring rod is vertical to the piston, and the detection accuracy is effectively improved.