13results about How to "Avoid accidental collision" patented technology

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.

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.

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 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 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 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.

This utility model discloses a buckling-restrained brace seismic device, comprising a buckling-restrained brace assembly, which is composed of a buckling-restrained brace, a support connecting seat, and a support mounting seat. The bottom of the support connecting seat is connected to two opposing buckling-restrained braces arranged in a V-shape. The support mounting seat is located at the bottom of the buckling-restrained brace. A decorative structure is provided on the outer surface of the buckling-restrained brace. This decorative structure is a cylindrical structure composed of alternating buffer pads and decorative lights. The decorative structure serves an aesthetic purpose, while the decorative lights also act as a warning to prevent accidental collisions. The buffer pads reduce injury to the human body during a collision.

The utility model belongs to the field of slitting devices, and particularly relates to a slitting device for paperboard processing, which comprises a slitting machine, an adjusting mechanism and a protection mechanism, a feeding platform is fixed on the slitting machine, a rectangular groove is formed in the feeding platform, a supporting plate for supporting a paperboard is rotatably connected to the rectangular groove, and the supporting plate is provided with a clamping groove for clamping the paperboard. The adjusting mechanism is installed on the rectangular groove and used for adjusting the inclination angle of the supporting plate. Through the structural design of the rectangular groove, the supporting plate and the adjusting mechanism, after a paperboard is placed on the supporting plate, the supporting plate can play a role in lifting the paperboard, the force of workers for lifting the bottom of the paperboard is reduced to a great extent, the workers can carry out feeding operation in a easier state, the overall labor intensity is effectively reduced, and meanwhile, the working efficiency is improved. And the inclination angle of the supporting plate can be adjusted according to actual requirements, workers can adjust the operation angle suitable for themselves through personalized adjustment, and the use requirements of different workers are met.