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.

A multi-level serving tray carrier is disclosed providing a means of transporting food trays as well as a means of providing a service if such food. The tray carrier, although capable of transporting and providing service access from multiple food trays, only requires an area of counter space ordinarily consumed by a single food tray. The tray carrier opens in such a manner as to provide access to all levels of food trays carried thereby while simultaneously providing great stability.

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 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 provides a teaching chandelier which is convenient for removing a lampshade, and relates to the technical field of teaching. The teaching chandelier that is easy to remove the lampshade includes a ceiling and a chandelier device box, the chandelier device box is located above the ceiling, a lampshade is arranged on the lower surface of the chandelier device box, and both sides of the lower surface of the chandelier device box are A fixing frame is fixedly connected, and the fixing frame is located inside the lampshade, and a chandelier lamp tube is fixedly installed between the two fixing frames. The teaching chandelier that is easy to remove the lampshade is provided with a cavity, a spring barrel, a spring, a moving plate and a limit column, so that the lampshade of the teaching chandelier is easy to remove, and effectively solves the problem that the teaching chandelier is difficult for students at night. Illumination, while the current teaching pendant lamps are not easy to remove when maintenance or cleaning is required. Since the lampshade needs to be removed from the ground higher, the probability of danger is greater if the time is too long, threatening people's lives.

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 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 relates to a column and beam connecting device applied to the technical field of buildings. The technical problem that columns and beans are not firmly connected is solved. The column and beam connecting device comprises a steel bottom plate, a steel coaming fixed to the steel bottom plate and used for limiting a vertical column and a clamping plate fixed to the steel bottom plate and used for limiting a cross beam. A first screw for locking the vertical column on the steel coaming is arranged on the steel coaming in a penetrating manner, and the two ends of the first screw protrude out of the steel coaming and then are in threaded connection with first locknuts. A second screw for locking the cross beam to the clamping plate is arranged on the clamping plate in a penetratingmanner, and the two ends of the second screw protrude out of the clamping plate and then are in threaded connection with second locknuts. The column and beam connecting device has the effect of improving the firmness and the stability of the connection of the cross beam and the vertical column.

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 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.