36results about How to "Avoid accidental collision" patented technology

The invention relates to the technical field of electric wheelchair control, in particular to a multi-mode navigation control method and system of an electric wheelchair controller. The method comprises the following steps: acquiring a real-time environment monitoring video based on an electric wheelchair high-definition camera; video jitter distortion compensation and dynamic object frame-by-frame continuous optical flow tracking are carried out on the real-time environment monitoring video, and a moving track of each dynamic object is generated; performing environment static obstacle accurate identification on the real-time environment monitoring video, and performing dynamic environment perception modeling based on a moving track of each dynamic object so as to generate a dynamic environment map; a navigation mode switching decision is made based on a real-time wheelchair operation instruction of the user to obtain a current navigation mode of the user, and the current navigation mode of the user comprises a rocker control mode and an intelligent navigation mode. According to the invention, efficient and intelligent multi-mode control of the electric wheelchair is realized, so that the electric wheelchair can more flexibly and safely cope with a complex environment.

The invention discloses a loudspeaker assembly and a vehicle, and relates to the technical field of loudspeakers, the loudspeaker assembly comprises a shell, a loudspeaker and a cover body, the shell is provided with an accommodating cavity, and the top of the shell is provided with an opening communicated with the accommodating cavity; the loudspeaker is arranged in the accommodating cavity in a lifting manner; the cover body movably covers the opening; when the loudspeaker rises, the cover body synchronously opens the opening. And when the loudspeaker descends, the cover body synchronously closes the opening. According to the technical scheme provided by the invention, the protection of the loudspeaker is improved.

The height limiting frame for municipal engineering road safety management comprises a supporting plate, a top plate, a supporting rod and a mounting base, the supporting rod is fixed to the upper end of the mounting base, the top plate is fixed to the upper end of the supporting rod, the lower end of the top plate is connected with a lead screw through a bearing, a supporting cover is arranged on the lower portion of the lead screw, and a shell is connected between the top plate and the supporting cover. A motor is installed on the inner wall of the supporting cover through bolts, the output end of the motor is connected with the driving end of a lead screw, the lead screw is slidably connected with a threaded seat, the side portion of the threaded seat is connected with a connecting strip, the lower end of the connecting strip is connected with a marking strip, and the position, corresponding to the marking strip, between the top plate and the installation seat corresponds to a graduated scale. The guide ring is slidably connected with the supporting rod. The height is easy to adjust, the buffering protection function is achieved, and power consumption is saved.

The application provides a fermentation mechanism with multi-layer tray fixation, relates to the fermentation technical field, and comprises a hydraulic damping and oil path locking system formed by the cooperation of a groove, a piston block and a push spring; and a linkage mechanism which converts linear motion of a tray into a hydraulic drive signal by the cooperation of a fixing frame, the tray, a moving wheel, a fixing wheel, a belt, a rotating shaft, an intermediate sleeve, an extension rod, an extension sleeve, a double pulley and a tension spring. The mechanism automatically limits the speed by the flow damping of hydraulic oil when the tray is pulled out, and the oil path is locked by the cooperation of the elastic sheet and the groove and the blocking of the intermediate groove by the sealing sleeve when fixation is needed, so that the dough displacement or falling caused by too fast pulling out of the tray is effectively avoided, and the stability and safety of the fermentation operation are significantly improved.

The application relates to a comprehensive distribution box, and relates to the technical field of distribution boxes. The comprehensive distribution box comprises a box body, mounting cavities are formed on the vertical sides of the box body, box doors for plugging the mounting cavity openings are mounted, and a plurality of heat dissipation openings are formed in the box body. An upwardly-opened flow guide cover is fixed on the inner wall of the box body at the heat dissipation openings, and a protection plate is mounted on the inner wall of the box body in the vertical direction. In the application, the flow guide cover can block and guide rainwater, so that the rainwater flows away along the flow guide cover, and the rainwater cannot directly enter the box body. The protection plate not only ensures the normal flow guiding and heat dissipation of the flow guide cover by leaving space for the flow guide cover, but also protects the inner wall of the box body and the flow guide cover. The box body and the box door can be formed by die molding of high-performance SMC composite material or mechanical machining and welding of stainless steel material.

The utility model discloses a front railing machine collision prevention device which comprises a shell, a rotating motor is installed on the outer surface of the shell, symmetrical first bearings are embedded in the inner wall of the shell, the inner rings of the two first bearings are jointly connected with a worm, and the output end of the rotating motor is connected with one end of the worm through the first bearings. According to the anti-collision device of the front railing machine, the worm can be driven to rotate through the rotating motor, the worm is meshed with the worm gear, the worm gear drives the baffle to ascend and descend, a vehicle is blocked, the anti-collision device has the self-locking performance, when damage occurs, the stop lever cannot automatically fall, and when the vehicle is detected through the microwave infrared vehicle detector, the anti-collision effect is good. When it is dark, the power supply assembly supplies power to the light bar, and the light-operated switch controls the light bar to light automatically, so that a driver can clearly see whether the stop lever is lifted or not, and the stop lever is prevented from being collided by mistake.

The utility model belongs to the technical field of knee joint postoperative rehabilitation training, particularly relates to a knee joint postoperative rehabilitation training device, and aims to solve the problems that the existing knee joint training effect depending on artificial assistance is unstable, and the traditional rehabilitation training device is complex in structure and cannot be flexibly adjusted according to the specific conditions of a patient. According to the technical scheme, the knee joint bending training device comprises a base, two supporting seats are symmetrically arranged at the top of the base, a shank supporting plate is driven by an electric air cylinder to swing back and forth, knee joint bending training is achieved, the training effect is stable, the training intensity can be adjusted according to the specific conditions of a patient, and matching of a threaded rod and a connecting pipe can be adjusted; the angle of the thigh supporting plate can be conveniently adjusted, so that the training requirements of different patients are met, the overall angle between the thigh supporting plate and the base and the overall angle between the shank supporting plate and the base can be adjusted at the same time through the worm and gear transmission mechanism, and the device can adapt to the patients with different heights and sitting postures.

This application discloses a pinball machine pull rod, including a handle, a push rod, a sleeve, and a spring. The handle is located at the bottom end of the push rod, and the top end of the push rod passes through the sleeve and reciprocates within the sleeve. The handle includes a cylindrical part, a frustum-shaped part, and an end face, arranged sequentially from right to left. The cross-sectional diameter of the cylindrical part is smaller than that of the frustum-shaped part. The outer surface of the end face is arc-shaped and convex. The spring is located within the sleeve, and the push rod has a limiting ring. When an external force pulls the push rod, the push rod moves backward within the sleeve. One end of the spring is connected to... When the push rod and the limiting ring collide, the spring is in a "compressed state." When the external force is removed, the push rod moves forward inside the sleeve under the restoring force of the spring, and one end of the spring moves away from the push rod limiting ring. The front end of the sleeve is fixedly connected to the external ball plate. The palm-fitting end and the truncated cone part make the grip fit the palm well, avoiding uneven force on the palm and causing hand fatigue. The front end of the sleeve is fixedly connected to the external ball plate to prevent the push rod from accidentally colliding with the external ball plate during reciprocating motion, thus improving the accuracy of the marble launching force.

The present invention belongs to the technical field of low-temperature resin preparation, and is particularly a bionic robot of anti-sky knife fish. In view of the problem that the current large underwater vehicles such as submarines are extremely difficult to turn around due to the great movement resistance, the following scheme is proposed, including an overall shell of an overall bionic anti-sky knife fish, the outer wall of the overall shell is smoothed, the overall shell is divided into a head, a middle body and a tail, and both sides of the head of the overall shell are provided with observation ports, and the end of the head of the overall shell away from the middle body is sleeved with a supercavitation generator. In this embodiment, the supercavitation generator is a bubble ring sleeved on the mouth, and the bubble ring is located on the side of the robot forward and has strip jet holes distributed at equal distances. The present invention can turn around in a small space through a side propulsion device arranged on the side, avoiding the disadvantage that traditional large-scale aircraft need to turn around in a large circle before turning around.

The invention discloses intelligent glasses, and relates to the technical field of intelligent wearing, the intelligent glasses comprise a glasses frame body, a nose pad module and a control assembly, the glasses frame body is provided with a nose pad opening; the nose pad module has a hidden state and a use state, and in the hidden state, the nose pad module does not protrude out of the plane where the nose pad opening is located; in the using state, the nose pad module protrudes out of the nose pad opening and is used for making contact with the nose bridge. The control assembly comprises a controller and an adjusting assembly electrically connected with the controller, and the controller is used for switching the hidden state and the use state through the adjusting assembly. According to the technical scheme provided by the invention, the protection on the nose pad module in the intelligent glasses is improved, so that the protection on the intelligent glasses is improved.

The utility model relates to the technical field of transportation equipment, in particular to an early warning device for preventing forklift collision, which comprises a forklift body and a combined fork arm arranged at one end of the forklift body, and further comprises a movement control mechanism arranged above the combined fork arm, and the early warning protection mechanism is arranged at the position, close to one end, of the combined fork arm, and ejection and retraction of the early warning protection mechanism are controlled through the moving control mechanism. According to the early warning device for preventing forklift collision, by arranging the moving control mechanism and the early warning protection mechanism, when goods are placed on the fork rod, a moving block drives a corrugated pipe to contract, and the goods are prevented from being collided; when the forklift collides, the telescopic pipe is pushed to move forwards, the protection soft plate and the air bag move forwards and are unfolded, the air bag is compressed to enable the alarm to give an audible alarm when the forklift collides, meanwhile, the protection soft plate can protect a collided object from being punctured by the sharp end of the fork rod, and early warning and protection of forklift collision are conveniently and rapidly achieved.

The application discloses a battery module assembly, which comprises a protective shell, a connector and a flexible circuit board, the protective shell is wrapped outside the connector, the flexible circuit board is installed on the top surface of the connector, the protective shell comprises a support and a cover plate, the connector is installed on the support, the cover plate is riveted on the top of the support, and the cover plate presses the flexible circuit board on the connector. The application provides all-round physical protection for the connector through the surrounding wrapping structure, and effectively isolates external collision and mechanical impact which may cause certain damage.

The municipal engineering construction fence with the expansion structure comprises a fence body, a mounting frame is connected to the interior of the top end of the fence body in a sliding mode, a protective net is mounted in the mounting frame, adjusting mechanisms are symmetrically arranged in the fence body, and a light reflecting assembly is arranged on one side of the fence body; the adjusting mechanism comprises mounting boxes symmetrically and fixedly connected to the interior of the fence body, mounting pipes are fixedly connected to the interiors of one ends of the mounting boxes, pull rods are slidably connected to the interiors of the mounting pipes, pull plates are fixedly connected to one ends of the pull rods, and inserting blocks are fixedly connected to one sides of the pull plates. And fixing pipes are symmetrically and fixedly connected to the interior of one end of the mounting box, so that the effect of accurately adjusting the height of the protective net can be achieved, the effect that the fence body can be expanded is achieved, the fence can flexibly adapt to various construction environments and can be accurately adjusted to cover construction areas with different heights, and the construction efficiency is improved.

The utility model discloses a water-jet loom convenient to maintain, which relates to the technical field of water-jet looms and comprises a machine body, the inside of the machine body is hollow, a plurality of guide rollers are arranged in the machine body, fabric is in transmission connection with the surfaces of the guide rollers, a plurality of sliding grooves are formed in the machine body, and the sliding grooves are communicated with the guide rollers. A sliding transverse rod is slidably connected into the sliding groove, and a protective door is fixedly connected to the surface of the sliding transverse rod. According to the water-jet loom convenient to maintain, when the check block does not stop the supporting rod any more, the check block needs to be synchronously pulled out to rotate on the other side, and the situation that when the machine runs, due to vibration, a rotating block on one side is disengaged from the check block, and the supporting rod is not stopped any more can be prevented; and meanwhile, impurities such as dust and flyings generated in the machine body can be effectively prevented from entering a workshop, and the cleaning difficulty is reduced.

The invention provides a carrying control method, a carrying device and a storage system.The carrying control method comprises the steps that first information and / or second information are / is obtained, the first information comprises at least one of position information of an insertion arm, an in-place state of a target object, a placement state of the target object, a chain state of a driving mechanism and a torque value of the driving mechanism; the second information comprises at least one of a position coordinate of the bearing layer, a starting point and an ending point of an automatic carrying task, and a starting point and an ending point of a manual carrying task; according to the first information and / or the second information, whether the movement of the insertion arm has risks or not is judged, and when the movement of the insertion arm has risks, the driving mechanism is controlled to stop driving the insertion arm and / or output alarm information.

The utility model discloses a hand fixator for infusion, which belongs to the technical field of infusion auxiliary instruments and comprises a bearing piece, a finger locking piece, a protective cover and a locking piece, the bearing piece comprises a hand supporting plate and a wrist supporting plate connected to the straight extension direction of the hand supporting plate, the finger locking piece is arranged on the hand supporting plate, and the wrist supporting plate is connected to the finger locking piece. The finger locking piece is arranged on the hand supporting plate and used for limiting random movement of fingers, the protective cover is movably connected to the hand supporting plate and used for preventing an infusion needle from being touched by mistake, and the locking piece is arranged on the supporting piece and used for fixing the protective cover and the hand of the patient to the supporting piece. Furthermore, under the action of the protective cover, the infusion needle on the hand is additionally protected, the needle is prevented from being accidentally collided or polluted by the outside, and the infusion safety is improved.

The utility model relates to the technical field of energy recovery, in particular to an LNG (Liquefied Natural Gas) storage tank outer coil pipe cold insulation device utilizing BOG (Boil Off Gas) cold energy. According to the technical scheme, the LNG storage tank comprises an LNG storage tank and a storage tank outer coil pipe, and further comprises an inner tank, an outer tank and a cold insulation material. The LNG storage tank, the inner tank, the outer tank, the cold insulation material, the storage tank outer coil pipe, the second vertical pipe, the annular pipe, the fins and other structures are matched, cold energy of BOG in the LNG storage tank is recycled and used for preventing cold loss of LNG in the storage tank, and more BOG is prevented from being generated due to permeation of heat in the atmospheric environment outside the storage tank. Meanwhile, the coil pipes are evenly distributed on the outer tank of the LNG storage tank and connected through the fins, the BOG is stored in the coil pipes, cold energy of the BOG is diffused to the surface of the outer tank through the fins, and the situation that due to the fact that the outer tank is heated, heat of outside air permeates into the tank, and more BOG is generated is prevented.

This invention provides a downhole in-situ rock scratching tool, relating to the field of petroleum engineering technology. It includes a tool housing, a scratching module, a control module, and a data acquisition module. The tool housing includes an axial channel; the scratching module is disposed within this axial channel and includes an adjustable cutter head support and a cutter head. The cutter head support can drive the cutter head to extend or retract radially along the tool housing. When the cutter head is in the extended position, it can form scratches on the downhole rock in situ. The control module includes a drive mechanism and a linkage mechanism. The drive mechanism can drive the scratching module to switch between the extended and retracted positions via the linkage mechanism. The data acquisition module is used to collect and upload force data on the cutter head. This invention can form continuous scratches on the downhole wellbore. Combined with the data acquisition module, it can simultaneously collect scratch force data for the entire test section. A single downhole run can complete continuous testing of a relatively long well section, resulting in short operation time, fast data output, and significantly reduced direct and time costs for obtaining rock mechanical parameters.

The utility model relates to a kind of flat open push-pull door structure and its buckle assembly, to solve the problem of not easy installation of existing flat open push-pull door. Include: a first seat body, with a seat hole and a passage, the passage with the first channel and the seat hole are communicated, the bottom of the seat hole has a elastic element;A second seat body, with a top plate, the top plate extends above the seat hole of the first seat body;And a release button, housed in the seat hole, the release button has a open slot, the elastic element is used to push the release button, so that the open slot and the passage are staggered, when the top of the release button is abutted on the top plate, the open slot and the passage are opposite. The buckle assembly can be used in a flat open push-pull door. Thus, worker can conveniently, quickly assemble the flat open push-pull door.

The utility model provides a shoe cabinet with a disinfection function, which relates to the technical field of shoe cabinets and comprises a cabinet body, partition plates are fixedly mounted on the inner wall of the cabinet body, a water pump is fixedly mounted on the top surface of the cabinet body, the input end of the water pump is communicated with a liquid storage tank, and the output end of the water pump is communicated with a spray head. An air heater is fixedly installed on the side face of the cabinet body, a side groove is formed in the inner side of the cabinet body, a rotating rod is rotationally connected to the inner wall of the side groove, an installation frame is fixedly installed on the surface of the rotating rod, a hook is fixedly installed on the bottom face of the installation frame, and a rubber column is fixedly installed on the bottom face of the installation frame. And a pulling handle is fixedly mounted on the surface of the mounting frame. According to the shoe cabinet, through the design of the mounting frame which can rotate to 90 degrees and can be unfolded outwards, the function of hanging shoe accessories such as insoles and socks is added, drying and disinfection of other articles except shoes are achieved, and the use efficiency and functionality of the shoe cabinet are improved.

The utility model relates to camera technical field especially relates to a portable camera magnetic attraction fixing device. Including mounting frame, casing, camera, first permanent magnet, first sheet iron and stopper, be equipped with first permanent magnet on mounting frame, one side of mounting frame is equipped with casing, be equipped with camera on casing, be equipped with the first sheet iron that cooperates with first permanent magnet on casing, mounting frame is equipped with stopper, the utility model discloses through the magnetic attraction between first permanent magnet on mounting frame and first sheet iron on casing, realized the quick adsorption and separation between camera and mounting frame, simple and convenient operation, the auxiliary positioning of combining stopper, effectively prevented the camera from wobbling or deviating in the use process, ensured the stability of the shooting picture.

The invention relates to the technical field of visual snow disease space interactive experience, and discloses a visual snow disease space interactive experience room. A sliding rail is fixedly connected to the surface of the inner wall of the experience room wallboard, a plurality of pulleys are slidably connected to a sliding groove formed in the lower surface of the sliding rail, connecting rods are arranged on the lower surfaces of the pulleys, and connecting blocks are fixedly connected to the ends, opposite to the pulleys, of the connecting rods. A screen partition curtain is arranged at the end, opposite to the connecting rod, of the connecting block. When the experience room has different activity arrangements, for example, experience activities aiming at different groups are carried out at the same time, or an experience area, an explanation area and a rest area need to be divided, corresponding independent spaces can be conveniently divided by sliding the screen partition curtain, and diversified use requirements are met. The sliding screen partition curtain can be used for isolating important and relatively fragile experience equipment areas for placing AR equipment and the like, a certain protection effect is achieved, the equipment damage risk is reduced, and the service life of the equipment is prolonged.

The utility model discloses a stirring device for constructional engineering, which belongs to the field of constructional engineering, and comprises a stirring cylinder and a sealing cover, the top of the sealing cover is provided with an integrated device, the integrated device comprises a mounting rack, the interior of the mounting rack is fixedly connected with a driving motor, and the output end of the driving motor is fixedly connected with a rotating connecting rod; by arranging the feeding hoppers, the rotating connecting rods, the limiting connecting rings, the arc-shaped scraping plates, the limiting sliding grooves and the driving motor, the rotating connecting rods are in linkage with the feeding hoppers and the arc-shaped scraping plates, an efficient material conveying and cleaning system can be constructed, and on the basis that it is ensured that feeding ports of the double feeding hoppers are expanded and the material putting amount is increased, uniform feeding of materials is achieved; according to the integrated device, materials can continuously and stably enter the stirring barrel, so that the stirring efficiency is ensured, meanwhile, the arc-shaped scraping plate in the integrated device can clean the limiting sliding groove in the operation process, material waste is effectively avoided, and material residues are prevented.

The present invention provides an anti-scratch charging pile for new energy vehicles, which relates to the technical field of charging piles, including a mounting steel plate, a charging pile distribution box is arranged on one side of the mounting steel plate, a charging pile main line pipe is integratedly arranged on the rear end of the charging pile distribution box, a plurality of connection components for connecting vehicles are fixedly installed on the front end of the connector mounting box, two limiting railing slide grooves are arranged on the upper surface of the mounting steel plate, and a railing moving component capable of adjusting the vehicle distance is arranged on the lower end surface of the mounting steel plate and below the limiting railing slide groove. When the vehicle is reversed into the mounting steel plate, the infrared distance sensor is used to detect the distance between the vehicle and the vehicle in real time. When the vehicle is reversed to a safe distance, the infrared distance sensor will start the railing moving component to block the rear wheels of the vehicle, so that the driver will feel resistance when reversing and will stop reversing, thereby preventing the vehicle from hitting the charging pile.

The utility model provides a gas chromatography liquid sample injection needle anti-bending device and gas chromatography liquid sample injection needle wherein the gas chromatography liquid sample injection needle anti-bending device comprises a connecting assembly and a telescopic sleeve, one end of the connecting assembly is connected with the telescopic sleeve, the other end of the connecting assembly is connected with the sample injection needle, and the telescopic sleeve is connected with the sample injection needle. The telescopic sleeve is arranged on the periphery of the sample injection needle in a sleeving manner, the telescopic sleeve and the sample injection needle are arranged at an interval, and the telescopic sleeve can stretch out and draw back in the direction parallel to the long axis of the sample injection needle. According to the anti-bending device for the gas chromatography liquid sample injection needle, the telescopic sleeve arranged on the periphery of the sample injection needle in the sleeving manner can freely stretch out and draw back in the long axis direction in the sample injection process, and the bending risk of the needle head caused by lateral stress can be reduced. When a needle head punctures the isolation pad, the sleeve shrinks to provide axial supporting force, and external impact is dispersed; after puncture is completed, the sleeve resets to wrap the needle head, accidental collision is avoided, the probability of breakage of the sample injection needle is reduced, the service life is prolonged, and the use cost is reduced.

The utility model discloses a positioning device for a liquid injection pipe. The positioning device comprises a mounting plate, and a positioning piece, a movable assembly and a detection mechanism which are arranged on the mounting plate, the positioning piece is used for positioning the liquid injection pipe; the movable assembly comprises a movable block and a reset piece, the movable block can reciprocate between an initial position and an in-place position, the reset piece is connected with the movable block and used for providing acting force for enabling the movable block to move towards the initial position, and the liquid injection pipe positioned on the positioning piece can push the movable block to the in-place position; the detection mechanism can detect the position of the movable block. After liquid injection of the liquid injection pipe is completed, the liquid injection pipe is inserted into the positioning piece to be positioned, the movable block can be pushed to the in-place position in the liquid injection pipe insertion process, and if the detection mechanism detects that the movable block moves to the in-place position, the liquid injection pipe is correctly returned. Therefore, the automatic guided vehicle can be prevented from pulling or colliding the liquid injection pipe by mistake, so that the risk that the liquid injection pipe is damaged or the electrolyte and other media are leaked is avoided. The utility model further discloses an electrolyte production line.

The present application belongs to the technical field of electric energy metering box, and relates to an electric energy metering box with a protection structure. The present application comprises a box body, a shielding assembly and a fire extinguishing assembly; a pressure relief through slot is formed in the box body. The shielding assembly comprises a rectangular block; two horizontal plates are symmetrically and slidably arranged in the box body, and a plurality of rectangular blocks are rotatably installed on each horizontal plate. In normal use, the plurality of rectangular blocks successively tightly block the pressure relief through slot. At the same time, the fire extinguishing nozzles are blocked by the adjacent rectangular blocks or the inner wall of the box body, so as to avoid accidental collision of the fire extinguishing nozzles, effectively prevent dust and impurities from entering the fire extinguishing nozzles to cause blockage, and ensure that the fire extinguishing nozzles can timely and smoothly spray out fire extinguishing agent in subsequent use. When an explosion occurs in the box body, the rectangular blocks are away from the pressure relief through slot, so that the pressure relief through slot is opened. At this time, the plurality of rectangular blocks are dispersed in the box body, which is beneficial to more uniformly spraying the fire extinguishing agent in the box body and improving the fire extinguishing effect.