30results about How to "Reduce shock effects" patented technology

A foundation shock eliminator for buildings or machines to dissipate or eliminate shock energy includes an upper block, a lower stationary base, a roller and an energy damping coating. The upper block and the lower stationary base have respectively a concave inner surface. The concave inner surfaces face each other. The roller is mounted between the concave inner surfaces. The energy damping coating dissipates the shock energy and is covers at least one of the surfaces of the upper block, the lower stationary base and the roller. Consequently, the foundation shock eliminator will aid the buildings or the machines to resist both vertical and horizontal shocks and diminish the shock effects to the buildings or machines. The energy damping coating will keep the entire foundation shock eliminator from being unstable whether or the foundation shock eliminator is subjected to shocks.

A foundation shock eliminator includes an upper block, a lower stationary base, an interconnecting assembly and an energy damping coating. The lower stationary base is mounted under the upper block. The interconnecting assembly is mounted between the upper block and the lower stationary base and includes an upper track, a lower track and a track joint. The upper and the lower tracks are respectively attached to the upper block and the lower stationary base and are arranged in a cross. The track joint is slidably mounted between the tracks. The energy damping coating mounted in the foundation shock eliminator absorbs shock energy. Consequently, the upper block will move relative to the lower stationary base to counterbalance the most horizontal shock effects and cooperates with the energy damping coating absorbing the shock energy in both horizontal and vertical directions so that reduction of shock is efficient.

The invention provides an adjustable middle support device for machining an overlength shaft. The adjustable middle support device comprises a transition sleeve and a support frame, wherein the transition sleeve is radially provided with a transition sleeve adjusting device capable of adjusting a distance between the transition sleeve and a boring rod, the support frame is a hollow circular sleeve and is sleeved on the transition sleeve, two end parts of the support frame are in airtight connection with the transition sleeve, the support frame is radially and symmetrically provided with a support frame adjusting device I capable of adjusting the distance between the support frame and the transition sleeve and a support frame adjusting device II capable of adjusting the supporting frame and a hole wall inside a stern shaft tube, a cavity of the support frame is internally provided with a rubber hose, one end of the rubber hose is in contact with the excircle of the transition sleeve, the other end of the rubber hose is connected with an outlet end of an oil filling nozzle which is fixedly arranged inside the cavity of the support frame, and the top end of the oil filling nozzle extends out of the support frame. The adjustable middle support device disclosed by the invention can be used for not only supporting the long boring rod but also guaranteeing the coaxiality in boring a long shaft hole, and has a higher practical value.

A method of transporting live large-sized commercial shad includes the steps of firstly, preparing before fishing; secondly, fishing; thirdly, bagging; fourthly, transporting; and fifthly reviving. In training before fishing, the shade is adaptive to manual operation; during fishing, mild operation is performed to avoid damage to the body of the shad; during bagging, transporting physiological fluid is added to lower stress reaction, and ice cubes are used for cooling to enable the shad to be less active; during transporting, foam boxes are used for bagging to reduce the influence caused by external vibrations. The time of transporting the shad by the method lasts more than 10 hours, the survival rate is more than 90%, and the shad can survive for more than 2 days at the destination.

The invention discloses a steel plate-steel support combined lateral force resisting member and a beam column structure applying the same and belongs to the technical field of lateral force resisting members in structural engineering. The steel plate-steel support combined lateral force resisting member comprises a steel plate, a steel support integrally connected with the steel plate, wherein the steel plate is in a shape like a Chinese character 'tu', the steel support comprises two portions respectively arranged on two sides of the steel plate, bolt holes are arranged on the steel support at intervals, bolt holes are also arranged at corresponding positions of the steel plate, the two portions of the steel support are respectively connected with the steel plates through high-strength bolts, the steel support is arranged in a V-shaped mode and used for providing a part of axial tension resisting and compression resisting capacity of the lateral force resisting member. The main purpose is that the steel support is utilized to constrain deformation outside a plane of the steel plate so as to avoid 'pinch' effect of a hysteretic curve, a pulling force field of the steel plate is utilized to constrain a phenomenon that an extreme point of the compressed steel support in a structural plane is often unstable, and accordingly the lateral force resisting member with excellent anti-seismic property is obtained.

The invention discloses a scale in the field of weighing apparatus, mainly comprising a weighing hopper (1); a horizontal plane of the upper end of the weighing hopper (1) is provided with suspension sensors (2), or a horizontal plane of the lower end of the weighing hopper (1) is provided with a supporting sensors (4), all sensors are fixedly arranged on a rack; all suspension sensors (2) or all supporting sensors (4) are connected with a weighing display control measuring appliance (8) to control operation of the scale; the scale is characterized in that the suspension sensors (2) and supporting sensors (4) are simultaneously arranged on a weighing hopper (1), the installation positions of all sensors are not necessarily in the same horizontal plane; in addition, the scale has the advantages of little drifting, stable operation, accurate measurement, high work efficiency, reduced maintenance intensity, long service life, safety and reliability, good adaptability and wide application range.

System for protecting persons from impacts against road crash barriers in which the barrier rail has a curved upper part to prevent cuts in the event of someone falling onto it and has protuberances to absorb and decelerate the velocity of the vehicle or accident victim, and the post (2) supporting the barrier rail is provided with cladding (5) formed of a number of concentric rings (6, 6′, 6″) of variable thickness and made of material which deforms flexibly and recovers immediately which incorporates a housing (7) designed to fit the post (2) through pressure and a clamping effect in addition to any bar system. The invention is useful for preventing injury and/or mutilation to motorists and cyclists.

Stock for a recoilless hunting rifle, for medium and large caliber hunting guns, which eliminates the stress produced by the effect of the recoil on the shooter's shoulder, providing at the same time good targeting precision and reduced consumption of bullet cartridges or shot cartridges. The stock has a stock butt and a mechanical anti-recoil module, with fast assembling, and a gun stock resembling the classical gun stocks but without transferring the recoil force to the shooter's shoulder. The recoilless buttstock includes a mechanical anti-recoil module, presented as an assembly having a pair of coupling parts, an elastic mechanism, a fixed support with rollers, an upper guide with a spring, a lower guide with a spring and the case of the stock.

A shock absorbing device adapted for mounting at a substantially vertical surface is disclosed. The aforesaid device comprises (a) vertically spaced-apart two pulleys being mechanically securable to the vertical surface; (b) an elongate member; the elongate member provided with two terminals; the member adapted for reciprocative motion along the elongate member; the member adapted for mechanically securing a subject to be protected; (c) a wire connected to the terminals of the member and tensioned through the pulleys. The device further comprises an energy absorber. The movable elongate member is mechanically secured to the vertical surface by means the energy absorber

The invention discloses a high-precision speed measurement method based on binocular stereoscopic vision. The method comprises the following steps of (a) setting a longitudinal speed measurement binocular camera and a transverse speed measurement binocular camera; (b) calibrating the longitudinal speed measurement binocular camera and the transverse speed measurement binocular camera to obtain a corresponding relation between the camera pixel points and the actual size; (c) acquiring an image of the moving object by using a longitudinal speed measurement binocular camera and a transverse speedmeasurement binocular camera, and acquiring feature points of the moving object through SIFT corner detection; (d) respectively calculating vehicle distances directly corresponding to two adjacent frames of images by utilizing a binocular parallax algorithm, and calculating longitudinal speed components and transverse speed components of the moving object according to the frame rate; and (e) properly synthesizing the longitudinal velocity component and the transverse velocity component to obtain the velocity of the moving object, so that the problems that the distance estimation can be carried out only by recognizing a measured object in advance in existing bullet screen distance measurement, the transverse movement speed of part of vehicles is ignored, and the measurement precision is not high enough, are solved.

The invention relates to a license plate recognition method and device and a storage medium, and belongs to the technical field of computers. The target image is input into a pre-trained character detection model, character information in the target image is obtained, and first sample data used when the character detection model is trained is smaller than first sample data used when the license plate recognition model is trained; performing position sorting on the characters according to the position information to obtain license plate information in the target image; the problems that a license plate recognition model needs to be obtained by training a large amount of sample data, and the license plate recognition accuracy of the trained license plate recognition model is low under the condition that the collected sample data is less can be solved; the first sample data used during character detection model training is less than the first sample data used during license plate recognition model training, so that the first sample data required during training is reduced, and the application range of the license plate recognition method can be expanded.

The invention provides a compound abrasion-proof device for a water wall of a circulating fluidized bed boiler, belongs to the technical field of boiler water wall abrasion resistance, and aims to provide a compound abrasion-proof device for a water wall of a circulating fluidized bed boiler, which can effectively protect a water wall tube from abrasion for a long time, is convenient to construct and maintain, and can not reduce boiler efficiency. The adopted technical scheme is that the compound abrasion-proof device for the water wall of the circulating fluidized bed boiler comprises a wedged abrasion-proof protective tile and a wing-shaped flow deflector, wherein the wedged abrasion-proof protective tile is vertically arranged, the cross section of the wedged abrasion-proof protective tile is arc-shaped, the wing-shaped flow deflector is a square flat plate arranged aslant downwardly, and is fixed at the bottom of the wedged abrasion-proof protective tile, and partial parts positioned in the arc-shaped interior of the wedged abrasion-proof protective tile are cut off to form notches. By using the compound abrasion-proof device, the water wall tube can be effectively protected, the construction and the maintenance are facilitated, and the abrasion-proof effect can be kept long.

The invention discloses an abrasive cloth cutting machine capable of being adjusted at multiple angles, and relates to the technical field of abrasive cloth cutting machines. The abrasive cloth cutting machine aims at solving the problem that when some existing abrasive cloth cutting machines are used, the flexibility performance is low, and consequently diversified production cannot be achieved.A supporting frame is installed above a base, a cutting structure is arranged on one side of the supporting frame, a feeding structure is installed on one side of the cutting structure, a tension handle structure is arranged on one side of the base, a material collecting box is installed on one side of the tension handle structure, and a second motor is arranged in the cutting structure; a guidingstructure is installed on one side of the second motor, a main cutting structure is arranged on one side of the guiding structure, a rotating structure is installed in the main cutting structure, anangle scale is arranged in the rotating structure, and a first gear structure is installed on one side of the angle scale; and a second electric wire circuit is arranged on one side of the first gearstructure.

A buffer for a subway rail comprises equipment for buffering and reducing shake. The equipment comprises a positioning plate fixedly connected into a base, a moving opening is formed in the positioning plate, a buckling block is movably connected into the moving opening, a buckling strip is fixedly connected to the upper end of the buckling block, and an assembling block is fixedly connected to the upper end of the buckling strip. Stabilizing equipment comprises positioning blocks fixedly connected to the two sides of the upper end of the assembling block, adjusting openings are formed in thepositioning blocks, screws used for adjusting are connected into the adjusting openings in a screwed mode, and one end of the screw used for adjusting is fixedly connected with a moving block. In combination with other structures, the defects that in the prior art, vertical and horizontal shake caused by high-speed operation of subway wheels can damage the interior and exterior of a rail, the service life of track is reduced, rivets and rivet holes used for stabilizing wheels shake, so that the tracks shake, running of the wheels is not facilitated, the specifications of the tracks are still different, and targeted stabilizing equipment does not exist are overcome.

A segregator barrier (2) comprising a barrier portion attached to one or more suction plates (4), wherein the or each suction plate (4) is operable to adhere to a surface by means of a vacuum created between the surface and the suction plate (4), wherein in use the vacuum is provided by a vacuum source. One or more one-way flow valves may be provided between the vacuum source and the suction plate (4) or at least one of the suction plates (4). Furthermore, one or more vacuum reservoirs may be provided between the vacuum source and the suction plate (4) or at least one of the suction plates (4). The barrier (2) may also be adapted to mitigate the effect of a shock load applied to the barrier.