61results about How to "Limit lateral displacement" patented technology

A batten (100) for mounting cladding sheets to a wall or frame, said batten comprising an elongate channel member having a pair of spaced apart side walls (120, 140) joined by an intermediate web (110), and a corresponding pair of mounting flanges (124, 145) spaced outwardly from the web (110) and extending laterally from the side walls (120, 140), adapted for connection to the cladding sheets (300), and the batten (100) being configured such that stress applied to the cladding sheets (300) in use results in preferential deformation of the batten.

In a scraper device for a milling drum (2) mounted in a construction machine, with a scraper blade (10) arranged in a height-adjustable manner behind the milling drum (2) when seen in the direction of travel, which can glide on the surface (3) milled or to be milled by the milling drum (2), where the scraper blade (10) is guided in lateral guides (12) in a height-adjustable manner relative to the milling drum (2), and where first centering devices (14) are provided which center the scraper blade (10) between the guides (12) with small lateral play of movement when in a raised position, and which allow a greater lateral play of movement of the scraper blade (10) when the scraper blade (10) is in a lowered working position, it is provided that the second centering devices (20) act upon the upper end (16) of the scraper blade (10), restricting the lateral displacement of the scraper blade (10) at the upper end (16) in case of a lateral movement of the scraper blade (10) in the guides (12).

The invention discloses a buffer energy-consuming anti-drop-beam device for a bridge, which can effectively resist to an earthquake disaster, prevent an adverse impact caused by over lateral displacement of the bridge and avoid the damage caused by the drop of a beam, and is convenient to mount and replace. The buffer energy-consuming anti-drop-beam device comprises an upper mounting plate which is fixedly mounted on a beam body, and a lower mounting plate which is fixedly mounted on a bridge pier. A guide groove structure is arranged at the lower end of the upper mounting plate; a transverse bridge direction guide groove of which the lower end is provided with an opening is formed in the guide groove structure. Energy consuming pieces which are made of soft steel and are provided with variable-width plate bodies are arranged between the upper mounting plate and the lower mounting plate in the transverse bridge direction at intervals; the upper parts of the energy consuming pieces are positioned in the transverse bridge direction guide groove and are restrained by the transverse bridge direction guide groove; the lower parts of the energy consuming pieces are fixedly connected with the lower mounting plate.

Provided is a high quality liquid crystal display device adapted to suppress scraping of alignment film and prevent micro light spot fault. The liquid crystal display device comprises: a plurality of columnar spacers and a first alignment film disposed over a first substrate; an insulation film disposed over a second substrate; and a second alignment film disposed over the insulation layer; receiving pedestals for the columnar spacers, wherein: the second alignment film is not formed over the central portion of each of the receiving pedestals; and around the outer peripheral portion of each receiving pedestal, the second alignment film has an inclined thickness distribution which is such that the thickness thereof increases gradually from the central portion to the outside position of the receiving pedestal.

The invention discloses an efficient heat insulation guide pipe bracket which comprises an upper hoop, heat insulation tile blocks, high-temperature-resistant soft heat preservation materials, bolt fasteners, a lower hoop, a base and a foundation bed. The upper hoop and the lower hoop are each of a semi-ring structure, and the two sides of the upper hoop and the two sides of the lower hoop extend to form fixing ends. The heat insulation tile blocks are poured on both the inner wall of the upper hoop and the inner wall of the lower hoop. The high-temperature-resistant soft heat preservation materials adhere to the inner walls of the heat insulation tile blocks. The upper hoop and the lower hoop are connected through the bolt fasteners arranged at the fixing ends. The lower hoop is connected to the base in a welded mode. The bottom of the base is provided with an upper sliding plate which is arranged on a lower sliding plate above the foundation bed. Accordingly, the efficient heat insulation guide pipe bracket is formed. Anchor nails and pull rods are additionally arranged between the upper hoop and the heat insulation tile blocks and additionally arranged between the lower hoop and the heat insulation tile blocks. According to the efficient heat insulation guide pipe bracket, by the adoption of the structural form that the anchor nails and the pull rods are additionally arranged between the upper hoop and the heat insulation tile blocks and additionally arranged between the lower hoop and the heat insulation tile blocks, the load bearing capacity of the pipe bracket is ensured, the loading capacity is high, and the heat transfer insulating effect is good.

The invention discloses an electric logistics vehicle comprising a chassis, a power driving system, an auxiliary frame, a sunken type rear axle and a wagon box body. The chassis comprises a front bearing portion, a middle bearing portion and a rear bearing portion; the auxiliary frame and the sunken type rear axle are mounted on the front bearing portion and the rear bearing portion correspondingly; the power driving system is arranged on the front bearing portion and / or the rear bearing portion; and the wagon box body is mounted on the chassis. The electric logistics vehicle is ingenious in structure, the power driving system on the chassis can achieve a front-mounted front-wheel drive, a rear-mounted rear-wheel drive or independent four-wheel-drive manner, the operating efficiency of thedrive system is achieved, and the performance requirements of the vehicle is met.

The invention discloses a continuous roller type cold bending forming method for a sharp-angled rectangular tube, and belongs to the technical field of metallic material press working. The method comprises a method that a band steel blank is subjected to bending deformation through rollers pass by pass, and a welding process for the sharp-angled rectangular tube. The production processes comprise coiling, flattening, shearing and butt welding, forming pass by pass, welding, finishing, straightening and sawing. The first seven passes adopt closed hole bending forming, and transverse displacement of the blank in the production process is limited, so that the machining precision is improved, the blank is bent by a certain angle pass by pass, subjected to multi-pass bending forming, heated to the liquid-phase offline semi-molten temperature through high-frequency induction before welding and subjected to up-down-pressing one-pass pressure welding. The continuous roller type cold bending forming method has the advantages of being high in production efficiency, stable in quality and good in forming effect.

The invention discloses a seawater intrusion simulation test sand box, and belongs to the technical field of test simulation devices. A medium chamber for accommodating water-containing media such assand, soil and the like is arranged in the middle of the test sand box, a seawater chamber for accommodating dyed seawater and a fresh water chamber for accommodating deionized water are arranged in left and right ends of the test sand box respectively; a main body of the test sand box is made of acrylic plates; rubber layers which can be seamlessly overlapped and can be inserted into the box arearranged on two sections in the middle of the medium chamber; each of the seawater chamber and the fresh water chamber is divided into three rooms A,B and C; the seawater room C and the medium chamberin the middle of the test sand box are separated by a porous plate and a nylon net; a water tank and a recovery tank are arranged at each of the upper and lower ends of the seawater chamber and the fresh water chamber. By means of the seawater intrusion simulation test sand box, the water level can be controlled conveniently and flexibly, and the simulation length can also be changed convenientlyand flexibly, so, not only can the concentration and pressure at a given point be measured, but also to-be-measured sites can be determined more freely.

The invention discloses a device for preventing a beam type bridge from overturning. The device comprises a plurality of overturning preventing units arranged on the two sides of the beam type bridge.Each overturning preventing unit is connected with the main beam and the corresponding pier stud. Each overturning preventing unit comprises a first part and a second part which are connected with the main beam or the corresponding pier stud respectively; the first part comprises a core rod, a limiting block and a first anchoring block; one end of the core rod is provided with a first anchoring block and the other end is provided with a limiting block; the second part comprises a stop block and a second anchoring block; a through hole matched with the cross section of the core rod is formed in the stop block; a gap is formed between the core rod and the inner wall of the through hole; the stop block is connected with the corresponding pier stud or the main beam through the second anchoring block; the limiting block is tightly attached to the stop block to restrain the relative position between the first anchoring block and the second anchoring block. According to the method, the problem of overturning reinforcement of an existing beam type bridge can be solved, the situation that too complex structural measures are adopted for preventing the bridge from overturning can be avoided,and therefore the construction cost of the structure is reduced.

The invention relates to the field of building, bridge and port projects and discloses a combined column with a reactive power concrete (RPC) outer cylinder filled with micro-expansion concrete. The combined column comprises the peripheral RPC outer cylinder and a micro-expansion concrete column body at the core area. The RPC outer cylinder covers the micro-expansion concrete column body at the core area. Longitudinal steel bars and common stirrups are arranged in the micro-expansion concrete column body. Through the restraint of the peripheral RPC outer cylinder, transverse displacement of the core concrete is limited, the overall rigidity of the combined column is improved, and the fire resistance and durability properties of the combined column are further improved. Through the application of the micro-expansion concrete, the durability property of the combined column is strengthened in the same way, prestress is generated inside the combined column through volume expansion of the combined column, and the axial ultimate bearing capacity of the combined column is improved. According to the combined using mode of RPC and the micro-expansion concrete, the combined column has excellent high-temperature resistance and abrasion resistance properties, and therefore the combined column with the RPC outer cylinder filled with the micro-expansion concrete can be used as a bearing member in the severe environments such as an ocean and the high-temperature and high-humidity environment.

The invention provides a teaching pendant lamp with a lampshade capable of being conveniently removed, and relates to the technology field of teaching. The teaching pendant lamp with the lampshade capable of being conveniently removed comprises a ceiling and a pendant lamp device box. The pendant lamp device box is arranged on the upper portion of the ceiling. The lower surface of the pendant lampdevice box is provided with a lampshade. The two sides of the lower surface of the pendant lamp device box are fixedly connected with fixing frames. The fixing frames are located in the lampshade. Apendant lamp pipe is fixedly mounted between the two fixing frames. According to the teaching pendant lamp with the lampshade capable of being conveniently removed, by arranging a cavity, a spring case, a spring, a moving plate and a limiting column, the lampshade of the teaching pendant lamp is removed conveniently, and the problems that the teaching pendant lamp illuminates for students at night, while a lampshade of a current teaching pendant lamp cannot be removed conveniently when the current teaching pendant lamp needs to be repaired or cleaned up, and the life safety of people is threatened due to the fact that lampshade removing needs a high distance from the ground and the time is too long resulting in the fact that the probability of danger happening is too high are solved.

The invention discloses a high temperature dust collector cyclone which belongs to a technical field of a dust collector. The dust collector cyclone comprises a housing, wherein, an air inlet and an air outlet are arranged on the housing, the bottom part of the housing is provided with a lower part ashpit, the bottom part of the ashpit is an ash discharge opening, a rotational flow chamber is arranged in the housing, the downstream of the rotational flow chamber is provided with a flow guide device, and the downstream of the flow guide device and the upper part of the ashpit are provided with internal ash falling devices. A water-cooling system is arranged in the housing; the inner wall of the housing is provided with a heat-resistance and wear-resistance inside lining. The device has the advantages of high temperature resistance, being able to carry out dust removing on the gases containing dust under the temperature less than 1000 DEG C, wear-resistance, long service life and good dust removing effect.

The invention discloses a multifunctional compact traction device for a center pin. The traction device comprises a center pin seat, a traction base connected with the center pin seat, a traction bar assembly installed on the traction base and transverse absorbers, wherein the lower parts of the center pin seat are provided with two absorber seats as rib plates, the absorber seats are provided with transverse absorbers; the traction seat is a semi-closed structure used for enveloping the traction bar, and the left side plate and right side plate of the traction seat are provided with transverse backstops. According to the multifunctional compact traction device provided by the invention, the structure can be simplified and the functions of the traction devices can be enriched; furthermore, the problems that the traction seat is large in welding quantity, the center pin seat is single in function and the interference is likely to be caused can be solved to a large extent.

The invention provides a micro inertial switch with a Z-shaped beam structure. The micro inertial switch has a micro inertial switch chip which is processed according to MEMS technology and has a low g-value. The micro inertial switch is mainly composed of a glass cover plate, a mass block and spring beam silicon structure, a glass substrate, etc. The spring beam structure is a symmetrical Z-shaped beam. In operation, on the condition an overload function exists in a sensitive direction, the Z-shaped beam deforms elastically, and the mass block moves to contact bump points in the groove of the glass substrate. On the condition that overload reaches a certain threshold, a metal electrode on the mass block contacts with two random adjacent contact pump points in the groove of the substrate, so that the micro inertial switch is on. The micro inertial switch with the Z-shaped beam structure has advantages of high transverse overload resistance, high productivity, high reliability, etc. The micro inertial switch with the Z-shaped beam structure is suitable for the fields such as automobile and industrial production safety control and aeronautics and astronautics.

The invention relates to an excircle grinding device, in particular to a pipe excircle grinding device for industrial production. The pipe excircle grinding device comprises a fixed bottom frame, pipe fixing devices, a pipe grinding device and upper cover plates, wherein the pipe fixing devices are fixedly arranged on the fixed bottom frame, the plurality of pipe fixing devices are arranged, the pipe fixing devices are arranged on the pipe grinding device, and the upper cover plates are arranged on the pipe fixing devices. Multiple supporting and limiting devices are arranged inside the device, so that movement is stabler, and pipe rotation and revolution are adopted in the device, so that grinding is more uniform, when the device is used for grinding, a pipe makes overall contact with a grinding plate, and the situation that the grinding plate works at a single position, and a grinding groove is generated, so that the grinding plate is damaged is prevented.

The unmanned aerial vehicle comprises an unmanned aerial vehicle body, supporting rods are arranged on the periphery of the unmanned aerial vehicle body, one ends of the supporting rods are rotationally connected with the unmanned aerial vehicle body, motor bases are arranged at the other ends of the supporting rods, motors are arranged on the motor bases, the motors are connected with paddles, vertical rods are arranged on the two sides of the bottom of the unmanned aerial vehicle body, and transverse rods are arranged at the bottoms of the vertical rods. A carrying plate is clamped on the transverse rod, sliding grooves are symmetrically formed in the carrying plate, pressing assemblies horizontally sliding along the sliding grooves are arranged in the sliding grooves, first springs are arranged between the pressing assemblies and the inner walls of the sliding grooves, and the control system comprises a route planning module, a visual auxiliary positioning module and an infrared induction module. The unmanned aerial vehicle can ensure that cargoes are relatively stable in the conveying process, fall is prevented, human intervention is not needed, the conveying efficiency is improved, accurate distribution can be ensured, the distribution time is saved, the distribution cost is reduced, the unmanned aerial vehicle has the function of avoiding obstacles, and normal and safe flight can be ensured.

Disclosed is a grouting reinforcement method for deformation control of a subway subsurface tunnel underneath-passing operation subway interval. The grouting reinforcement method comprises the steps that pre-grouting is conducted on a tunnel base through an existing line interval ballast bed structure, and cement-EAA epoxy composite grout is injected through an advancing type segmented drilling grouting technology; a vertical sleeve valve pipe pre-grouting process is adopted to conduct grouting reinforcement on a certain plane and depth range stratum on the outer side of the existing line interval from the ground; in the process that a subsurface tunnel penetrates through an existing operation subway interval, an informatization construction means is adopted, and a sleeve valve pipe tracking grouting technology is adopted for a certain plane and depth range stratum between two lines of the existing line interval from the ground; and a WSS horizontal tracking grouting technology is adopted for a certain plane and depth range stratum between an existing line interval and the subsurface tunnel in the horizontal direction (adjacent subway foundation pits), active control measures are taken for deformation control, and the method has very important reference value and practical significance for engineering construction of the similar subway tunnels underneath passing through the existing line in a close range.

The invention discloses a bearing and driving mechanism for a sliding door of an urban rail vehicle. The bearing and driving mechanism comprises a slideway component, a driving screw rod, a screw rod driving component, a driving support, a plurality of bearing wheels, a left-door-leaf bearing support, a right-door-leaf bearing support, drag chain supports and drag chains. The screw rod driving component is arranged on one side of the driving screw rod, and a manual unlocking device is arranged on the other side of the driving screw rod. The slideway component is mounted below the driving support. The bearing wheels are arranged in the slideway component. The left-door-leaf bearing support and the right-door-leaf bearing support are connected with one ends of the corresponding drag chains respectively, and the other ends of the drag chains are fixed on the drag chain supports respectively. The drag chain supports are fixed on the driving support. A front bearing piece, a middle bearing piece and a rear bearing piece are sleeved on the driving screw rod. Bearing capability of the bearing and driving mechanism is improved, abrasion of higher pair connecting mechanisms is reduced, service life of the driving screw rod is guaranteed, product quality is stabilized, product competiveness is improved, and the bearing and driving mechanism has good application prospect.

A coil spring suspension designed for a handlebar-steered vehicle. The coil spring suspension generally includes a first tube, a coil spring, a shaft and a guide. A first end of the coil spring is disposed within the first tube and fixedly supported proximate a first end of the first tube. The coil spring extends beyond a second end of the first tube. The shaft fixedly supports a second end of the coil spring. The shaft and the first tube are slidably displaced relative to each other upon suspension loading to lengthwise compress the coil spring. The guide is disposed within the first tube and connected to the coil spring between the first and second ends of the coil spring. The guide is displaced with the coil spring under suspension loading and limiting lateral displacement of the coil spring.

The invention relates to a descent control hinge for a closestool. The descent control hinge for the closestool comprises a rotating connector, a descent control device, a connecting rack and an insertion-connection column, wherein the rotating connector, the descent control device and the connecting rack are sequentially connected to form a descent control hinge unit, a closestool lid assembling hole is formed in the bottom end of a closestool lid, a seat assembling hole is formed in the bottom end of a closestool seat, the closestool lid assembling hole is communicated with the seat assembling hole to form a hinge assembling hole, and the descent control hinge unit is arranged inside the hinge assembling hole.

The invention discloses a nitrogen generating vehicle, which comprises an automobile chassis, a chassis vehicle main beam and a chassis accessory beam; a multi-film-group parallel connection nitrogen generating equipment is disposed on the automobile chassis; the chassis vehicle main beam is fixed to the chassis accessory beam; the chassis accessory beam is fixed with an equipment chassis; the multi-film-group parallel connection nitrogen generating equipment is disposed in the equipment chassis; hydraulic flying-wing doors are disposed on both sides of the equipment chassis; a movable flexible pipe winding rack and a push-and-pull formula ladder are also disposed on the nitrogen generating vehicle. The nitrogen generating vehicle provided in the invention achieves the advantages of largeoutput, small occupation area, convenient transporting and moving, high operating efficiency, time and energy saving, and convenience.

The invention discloses a fabricated subway station central column and arc-shaped rubber supporting seat self-resetting shock absorption structure. The fabricated subway station central column and arc-shaped rubber supporting seat self-resetting shock absorption structure comprises a subway station space composed of a precast top plate, a precast bottom plate, precast side walls and a precast central column, the joints of the precast side walls and the precast top plate and the joints of the precast side walls and the precast bottom plate are provided with arc-shaped rubber supporting seats enabling a whole structure to form 'hinge connection' from 'rigid connection' correspondingly, prestressed steel bars penetrating through the two edges of the arc-shaped rubber supporting seats and communicating with the precast top plate and the precast bottom plate are arranged in the left sides and the right sides of the precast side walls correspondingly, the two end tips of the prestressed steel bars are anchored and fixed through nuts, the precast central column is of an 'I-shaped' structure, the two end tips of the precast central column are connected with the middle of the precast top plate and the middle of the precast bottom plate through mortise and tenon joint structures correspondingly, through the mortise and tenon joint structures, under the action of an earthquake, the bending moment at the joint position between the central column and the station top plate and the joint position between the central column and the station bottom plate is released, and thus the damage to the station is reduced; and the central column is precast through steel cylinder concrete, the strength of the central column is greatly improved, deformation of the central column is reduced, and theearthquake resistance ability of the central column is improved.

The invention relates to a bridge anti-seismic chock block invention field, and specifically relates to a bridge prefabricated may reset energy dissipation anti-seismic check blocks. The device comprises a back plate, a front plate, a U-shaped plate, a connecting rod, a spring, a soft steel, a bolt, a gasket, a stiffening rib, a bolt hole, a track; the front plate back plate consists of a plurality of sleeved with a spring, the connecting rod and the front plate are welded, the other end of the connecting rod passes through the corresponding hole on the back plate through a bolt after the backing plate at the limit connecting rod is pulled out of the back plate, the left side and the right side plate of the U-shaped plate is provided with a plurality of bolt holes, the baffle block throughthe bolt connected to the cover beam, and this connection can be fabricated connection mobility. According to the device, compared with the traditional stop block, the structure is simple, the stressis clear, the conventional check block and a main beam of the rigid collision into flexible collision, slowing down the seismic action on the main beam and the baffle block, reducing the impact of the stop block and the local damage of the main beam.

The invention discloses a single-span simply supported beam bridge structure applicable to a coal mining subsidence area. The single-span simply supported beam bridge structure applicable to the coal mining subsidence area comprises a bridge abutment, a foundation, a bridge deck slab, and supports, the top surface of the bridge abutment is of a broken-line structure, and comprises a horizontal plane in the middle and slant planes on the two sides, the number of the supports is three, wherein two of the supports are placed on one side of the bridge abutment, and the other one is placed on the other side of the bridge abutment. In a surface deformation process, since the three supports are adopted to be placed in the bridge pier and abutment, the plane of the bridge deck slab can be consistent with the plane which is formed by the top surfaces of the three supports all the time according to the principle that random three points in the space can determine a plane, and thus the bridge deck slab is prevented from being fractured. The top surface of the bridge abutment of the broken-line structure can effectively limit the horizontal displacement of the bridge deck slab, and thus the occurrence of beam falling accidents is prevented.

The invention discloses a multifunctional compact traction device for a center pin. The traction device comprises a center pin seat, a traction base connected with the center pin seat, a traction bar assembly installed on the traction base and transverse absorbers, wherein the lower parts of the center pin seat are provided with two absorber seats as rib plates, the absorber seats are provided with transverse absorbers; the traction seat is a semi-closed structure used for enveloping the traction bar, and the left side plate and right side plate of the traction seat are provided with transverse backstops. According to the multifunctional compact traction device provided by the invention, the structure can be simplified and the functions of the traction devices can be enriched; furthermore, the problems that the traction seat is large in welding quantity, the center pin seat is single in function and the interference is likely to be caused can be solved to a large extent.

The present invention discloses a single fast reactor assembly thermal bending test restraining apparatus and a thermal deformation contact measurement method thereof. The apparatus comprises a vertical column, wherein the upper portion and the middle portion of the vertical column are respectively provided with a supporting seat, each supporting seat is provided with a screw rod fixation seat, a screw rod can linearly move on the screw rod fixation seat, both sides of the screw rod fixation seat are respectively provided with a screw cap for fixing the screw rod, and the screw rod and a hexagonal hoop are connected through a C-shaped connection member. The invention further provides a method for performing thermal deformation contact measurement by using the apparatus. According to the present invention, with the single fast reactor assembly thermal bending test restraining apparatus, the restraining and the force applied on the single fast reactor assembly in the actual reactor are simulated to the maximum extent; and the thermal deformation contact measurement method provides the rich and effective data for the research of the thermal-deformation-contact mechanism of the single fast reactor assembly.

The invention provides a girth welding tool. The girth welding tool comprises a support rack and a clamping mechanism arranged on the support rack, wherein the clamping mechanism comprises a pluralityof support columns, which are arranged obliquely correspondingly on the support rack, and guide wheels, which are mounted rotationally on the support columns; one ends of the support columns are rotationally mounted on the support rack; mounting grooves for mounting the guide wheels are formed in the other ends of the support columns; the guide wheels are mounted on the support columns through rotating shafts; positioning plates are arranged on the supporting columns in the rotation direction of the guide wheels; and a cover plate assembly is arranged at the position, corresponding to the support columns, on the support rack. The girth welding tool can be well applied to the girth welding of a workpiece and well restrict the transverse movement of the workpiece to ensure the welding quality of the workpiece; meanwhile, the workpiece can rotate axially on the girth welding tool, which is convenient for a worker to weld the workpiece quickly; and the support columns and the guide wheelson the support columns can support the workpiece well, and the guide wheels, which are arranged in an rotatable manner, also allow the workpiece to be moved easily on the support columns.

The invention discloses a thin film packaging device which comprises a device body, a base, a support leg, a hydraulic lifter, a fixing assembly, a support frame, a motor, a rotary shaft, a fixing disc, a fixing frame, sliders, slide grooves, connecting rods, positioning holes, a first fastening knob, first connecting plates and connecting grooves. The hydraulic lifter is mounted at an end of thedevice body, the base is connected with the bottom of the hydraulic lifter, the support leg is arranged on a side of the base, the support frame is mounted on the top of the hydraulic lifter, the motor is mounted at an end of the base, the fixing disc is connected with the top of the motor by the rotary shaft, the fixing frame is arranged in the center of the top of the fixing disc, the first connecting plates are arranged inside the fixing frame, the connecting grooves are formed inside the first connecting plates, and the corresponding slide grooves are formed in two sides of the bottom of each connecting groove. The thin film packaging device has the advantages of wide application range and thin film positioning, fixing and packaging functions.