68results about How to "Avoid direct collision" patented technology

The stamping die comprises a bottom plate and a supporting table arranged on the top face of the bottom plate, a lower die base is fixedly arranged in the supporting table, an upper die base is movably arranged on the top face of the lower die base, and a die cavity is defined by the upper die base and the lower die base; a fence is fixedly arranged on the top face of the upper die base, and a cleaning mechanism is arranged on the surface of the lower die base. According to the stamping die for machining the automobile trunk lid, through the arrangement of the cleaning mechanism, waste in the die cavity can be blown out and cleaned away after one-time stamping operation is finished, the top face of the die cavity is in a closed state, and the problem that the waste is blown out of the die cavity to increase the cleaning difficulty is solved; and the problem that waste in the material receiving box is blown up again and drifts into the die cavity during subsequent cleaning can be avoided, and the cleaning difficulty of personnel is reduced.

The invention belongs to the technical field of cranes, in particular to an anti-swing device for a crane sling, and provides the following scheme that the anti-swing device comprises a tray and a base, the bottom of the tray and the bottom of the base are located on the same horizontal plane, supporting legs are fixedly connected to the four corners of the bottom of the tray, and the tops of the four supporting legs are fixedly connected with the same guardrail; the four corners of the top of the guardrail are fixedly connected with inhaul cables, the tops of the four inhaul cables are fixedly connected with the same connecting piece, the top of the connecting piece is fixedly connected with a connecting buckle, and the bottom of the connecting piece is fixedly connected with a plug. According to the lifting device, the tray is separated from the ground through preliminary lifting of the hydraulic rod, observation and balance weight adjustment are conveniently conducted on the tray before lifting, lifting can be directly continued after adjustment is completed, the hydraulic rod does not need to be reset, goods on the tray are prevented from deviating in the reset process, and the tray is prevented from inclining again; the purpose of preventing the tray from deviating in the lifting process is achieved.

The present invention discloses a semi-submersible anti-collision offshore charging pile, comprising: the upper part of the charging pile body is in the shape of a positive cone, the lower part is in the shape of an inverted cone, and an air bag is arranged around the outer periphery of the junction edge of the upper positive cone and the lower inverted cone of the charging pile body; a compressed gas chamber with a ring-shaped cross section is arranged inside the upper positive cone of the charging pile body, and the compressed gas chamber is connected to the air bag through an air pump, and the air pump is arranged at the lower part of the compressed gas chamber, and the air pump controls the floating state of the charging pile body by sucking or filling the air bag with gas. According to the present invention, a ring-shaped air bag is arranged around the outer periphery of the charging pile, which solves the floating problem of the offshore charging pile while providing anti-collision protection for the offshore charging pile to avoid direct collision between the charging pile body and the ship; when the offshore charging pile is connected to the new energy ship, the gas in the air bag is extracted to reduce the volume to a certain extent until the offshore charging pile is suspended below the sea surface to avoid collision with the new energy ship.

The utility model relates to the field of emergency rescue, and discloses a cart frame of a fire extinguishing device and the fire extinguishing device.The cart frame comprises a frame, the frame is provided with a peripheral wall and a top wall, a liquid storage tank containing cavity used for installing a liquid storage tank is defined by the peripheral wall, and the top wall is located above the peripheral wall and can open or close an upper opening of the liquid storage tank containing cavity; the bottom of the liquid storage tank accommodating cavity is open; the wheel set is rotatably arranged on the lower portion of the frame, and the wheel set is arranged on the lower portion of the rear end of the peripheral wall; and the handle assembly is arranged on the frame. According to the fire extinguishing device and the cart frame thereof, the liquid storage tank and components installed on the liquid storage tank can be protected during collision, and the structure is safe and reliable.

The utility model relates to the technical field of auxiliary tools of shoe material cutting machines, and discloses a knife collision prevention device of a shoe material cutting machine, which comprises a cutting machine body, a movable seat and a buffer mechanism, the moving base is connected to the cutting machine body in a sliding mode. The top end of the moving seat is connected with a cutting knife assembly, and the moving seat is used for driving the cutting knife assembly to move to a designated position; the buffering mechanism comprises a buffering assembly and a buffering base. At least one group of buffer assemblies are arranged, the buffer assemblies are arranged on one side of the cutting knife assembly, pressure sensors are arranged at the bottom ends of the buffer assemblies, and the pressure sensors are electrically connected with the cutting knife assembly; the buffering base is arranged in the cutting machine body and located below the cutting knife assembly. The buffering assembly and the buffering base are used for buffering the impact force generated when the cutting knife assembly makes contact with a vamp.

The utility model relates to the technical field of liquid oxygen storage, in particular to a high-pressure sealed gas storage bottle for liquid oxygen storage, which is characterized in that a fixing block is arranged on the outer surface of a tank body, and a sealing gasket and a plurality of connecting rods are arranged on the upper surface of the tank body; a notch is formed in the side surface of the valve body; the device has the beneficial effects that the sealing gasket is clamped into the hole in the upper surface of the tank body, the mounting groove in the lower surface of the valve body is aligned with the sealing gasket and clamped into the sealing gasket, then the valve body and the tank body are fixedly connected through bolts, the buffering gasket is aligned with the positioning groove formed in the fixing block and clamped into the positioning groove, and the buffering gasket can buffer collision between the tank body and other objects; when the gas storage bottle falls off, the rubber handle is matched with the connecting rod, so that the situation that the valve body directly collides with other objects, the sealing performance of the gas storage bottle is reduced, and gas leakage of the gas storage bottle is caused can be effectively avoided; and the safety is improved.

The utility model relates to a kind of building construction hoisting device, including chassis and basket, the top of the chassis is provided with gravity block, the top of the chassis is provided with triangular crane stand near the basket, the top of the triangular crane stand is also equipped with the hoisting structure for connecting basket and chassis, the top of the chassis is equipped with the driving structure for providing power to make hoisting structure lift basket, the top of the both sides of the basket is provided with basket triangular hanging frame, the side of the basket near the chassis is equipped with basket door leaf, the side of the basket near the chassis is provided with two fixed plates, the front of two the fixed plate is provided with the anti-collision structure for playing the support wall surface and preventing collision. The building construction hoisting device, by setting anti-collision structure, the synergistic effect of rubber support plate and spring contraction rod is utilized, effectively absorb the impact force when basket shakes, prevent basket and wall surface directly collide, protect wall surface and worker safety.

The invention relates to the technical field of can damage prevention conveying, in particular to a can damage prevention conveying device which comprises a conveying vehicle, storage boxes are symmetrically and fixedly connected to the top of the conveying vehicle, cushions are fixedly connected to the inner sides of the storage boxes, and a plurality of cans are placed on the inner sides of the cushions; first fixing frames are fixedly connected to the front side and the rear side of the top of the conveying vehicle, electric telescopic rods are fixedly connected to the inner sides of the tops of the first fixing frames, second fixing frames are fixedly connected to the output ends of the electric telescopic rods, pushing pieces are fixedly connected to the bottoms of the two sides of the second fixing frames, and tank bodies can be separated when the pushing pieces are pressed downwards; therefore, direct collision caused by mutual attaching of the can bodies in the conveying process can be effectively avoided, damage such as scratches and pits on the surfaces of the can bodies is reduced, the can bodies with the surfaces coated with protective layers or labeled can be prevented from being damaged by collision through the pushing piece, and the appearance neatness and information integrity of products are kept.

The utility model discloses an electric power control cabinet with a protection function, which relates to the technical field of electric power control cabinets and comprises a control cabinet main body, a cabinet door is arranged on the outer side of the control cabinet main body, and protection assemblies are arranged on the edges of the control cabinet main body and the cabinet door. According to the electric power control cabinet with the protection function, the protection assembly is arranged on the outer side of the control cabinet body, in the installation process of the anti-collision strips, limiting blocks are extruded into limiting grooves, the anti-collision strips are positioned in placement grooves, and after the anti-collision strips are abraded, the anti-collision strips can be independently replaced; meanwhile, the distance sensor can detect the distance between the control cabinet body and the article or the cavity for early warning, when the rear side of the control cabinet body makes contact with the article, anti-collision buffering is conducted through the corresponding air bag, direct collision of the control cabinet body is avoided, operation is convenient and fast, the structure is simple, and the protection effect of the control cabinet body is improved.

The utility model discloses a gluing device for rubber product production. The gluing device comprises an adjusting device, a portal frame, a motor, a screw rod, a sliding seat, a hydraulic cylinder, a gluing head and a clamping piece, by arranging the adjusting device, after glue is smeared on a rubber product, the rubber product is moved to one side to be dried through the fan, the risk that the glue at the bottom end of the gluing head is solidified due to direct blowing of the fan is avoided, and the gluing efficiency of the rubber product can be improved, the operation time is saved and the production efficiency is improved through front-back sliding of the sliding table and ordered gluing production. The clamping piece is positioned through the positioning mounting plate, the clamping piece can be conveniently and quickly positioned and embedded into the positioning mounting plate and locked through the nut, quick alignment and mounting are achieved, and through the arrangement of the ventilation plate, wind power of the fan at the bottom end can be conveniently blown upwards to the rubber product to dry glue on the rubber product. The filter screen on the ventilation plate can prevent the rubber product from directly colliding with the fan, and the safety of the fan arranged at the bottom is improved.

The utility model is suitable for mechanical transmission equipment technical field provides a kind of high bearing driving shaft bearing seat, including main body, the side surface fixed connection of main body has lubricating component and heat dissipation component.The utility model solves the technical problem that bearing surface is to high load, high speed work environment, prone to bearing seat deformation and bearing damage, leading to equipment failure frequently, the technical problem of influence production efficiency and equipment life, the utility model utilizes the structural design of seat body and reinforcing rib made of high-strength alloy steel material, significantly improve the bearing capacity of bearing seat, can satisfy the work demand of high load, high speed, effectively prevent the equipment failure caused by insufficient bearing, the heat dissipation groove design of grid distribution, increase the heat dissipation area of seat body, improve the heat dissipation efficiency, utilize the setting of lubricating channel to provide sustained stable lubrication for bearing, reduce the wear of bearing, improve the operating efficiency and reliability of equipment.

The utility model relates to a flood prevention lock gate pier technical field especially is a kind of superhigh combined lock gate pier, including retaining wall, installation space is formed between two adjacent retaining walls;Bottom baffle, vertically set in the installation space, two ends of the bottom baffle are connected with two retaining walls respectively, and bottom end of the bottom baffle is installed on ground;Top baffle, vertically set in the installation space, the bottom of the top baffle is fixedly connected with the top of the bottom baffle by pressing top piece;Buffer plate, hinged in the top of the top baffle;Support frame, support between the backwater surface of the bottom baffle and the top baffle and ground;Float, set on the buffer plate, it can make the buffer plate part float on water surface.The utility model reduces material cost and construction cost, shortens construction cycle simultaneously;At the same time, water surface floating object can be prevented and directly collides top baffle, improves the impact resistance of entire combined lock gate pier.

The utility model provides an angle steel guide material pressing unit, it aims at solving the problem of unstable clamping and low positioning accuracy of angle steel workpiece with deviation in geometric shape. The device comprises a guide material supporting mechanism and a material pressing mechanism, the guide material supporting mechanism comprises a material supporting element for contacting the lower side of the angle steel flange and a material supporting universal hinge mechanism connecting the material supporting element and a material supporting driving element; the material pressing mechanism comprises a material pressing element for contacting the upper side of the angle steel flange and a material pressing universal hinge mechanism connecting the material pressing element and a material pressing driving element, the material supporting universal hinge mechanism and the material pressing universal hinge mechanism both allow the respective contact elements to swing in multiple degrees of freedom, thereby being able to adaptively fit the angle steel flange profile with deviations in shape such as distortion and bending. Through the adaptive fitting in the upward and downward directions, stable and reliable clamping of irregular angle steel workpieces is realized, thereby ensuring the stability of the subsequent angle steel machining accuracy.

The utility model discloses a grabbing mechanism for metal part processing, which comprises a base plate, a clamping assembly is arranged on the base plate, the clamping assembly comprises a rotating big arm, a driven big arm, a bottom plate, a meshing gear, a motor, a fixing plate and a lifting cylinder, the rotating big arm is rotatably connected to the top end of the base plate, and the driven big arm is rotatably connected to the top end of the base plate. The driven large arm is rotationally connected with one end of the rotating large arm, the bottom plate is connected to one side of the driven large arm, the meshing gears are rotationally connected to the top of the bottom plate, the number of the meshing gears is two, the motor is connected with one meshing gear, the fixing plate is arranged at the tops of the meshing gears, and the motor is connected with the rotating large arm. The lifting air cylinder is installed on one side of the fixing plate, and a stopping assembly is arranged on the fixing plate and comprises a fixing box, an electric push rod and a lining plate. The technical problem that in the prior art, grabbing tools of an existing grabbing mechanism need to be frequently replaced and adjusted when the grabbing mechanism faces metal parts of different types, shapes and sizes is solved.

The utility model relates to building pipe spacer technology field, concretely is a kind of building material turnover auxiliary device for construction engineering, including spacer, spacer is placed below multiple building construction pipe, the both ends of spacer are respectively provided with splicing groove one and splicing groove two, two spacers are spliced by splicing groove one and splicing groove two misregistration when head-to-tail splicing, and two spacer splicing places are connected by screw rod, the surface of spacer is equipped with rope body, and rope body is used for limiting building construction pipe;Beneficial effects are that: rope body is further limited to building construction pipe.Rope body one end is bolted on the bolted rod between the reserved mouth side wall, and the other end is bolted on the bolted ring welded and fixed on the top surface of spacer after passing through pipe.In the other end of bolted rope body, tensioning rope body makes it be in taut state, can tightly squeeze building construction pipe on spacer, avoid pipe from spacer drop, provide double protection for the stable placement of pipe, improve the safety and reliability in the process of pipe turnover.

The utility model relates to a plastic packaging box technical field especially relates to a special-shaped plastic packaging blister box. The special-shaped plastic packaging blister box includes blister box body, protection shell, flexible band, drive assembly and sponge pad, and the inside of blister box body is provided with the placement groove equidistantly, and the outside of blister box body is provided with the protection shell, and the inside placement groove of blister box body is all installed with the flexible band symmetrically, and drive assembly is installed between blister box body and flexible band. The special-shaped plastic packaging blister box provided by the utility model realizes the quick taking out of battery through the linkage design of drive assembly and flexible band, and the operator only needs to push the push plate to make the flexible band protrude upwards, and the precision battery in the placement groove is lifted, and it is not necessary to pinch or pry with fingers. This structure completely avoids the problems of battery shell scratch, falling and the like caused by improper force.

This utility model discloses a low-temperature food preservation and storage device, relating to the field of food preservation technology. It includes a refrigerator with an open storage chamber containing multiple storage boxes stacked inside. The top width of each storage box is greater than its lower middle width, and a gap is formed between the lower middle part of the storage box and the inner walls of both sides of the storage chamber. In this design, when the lower middle part of the storage box compresses the elastic ring until the soft strip reaches its innermost point, the soft strip tightens into an arc shape. This arc structure further enhances the cushioning effect, dispersing the impact force during placement. Simultaneously, it forms a double cushioning protection with the elastic ring. Furthermore, the multiple elastic rings are in close contact with each other, with their contact edges on the same plane, ensuring that the cushioning force of each elastic ring is evenly transmitted. The consistent cushioning effect of multiple elastic rings avoids direct collision with the inner walls, effectively protecting the food.

This invention discloses a low-noise hydraulic cylinder with adjustable end stroke and its assembly method, belonging to the field of ship vibration reduction and noise reduction technology. The cylinder includes a bow end cap, cylinder barrel, piston, connecting rod, buffer sleeve, stern end cap, and structures such as a reversing oil passage, a buffer oil passage, a reversing oil chamber, and a buffer oil chamber. The buffer sleeve is fitted onto both sides of the connecting rod, forming a closed buffer oil chamber in cooperation with the end cap, cylinder barrel, and piston. During operation, the oil flow rate and pressure of the buffer oil chamber are controlled by adjusting the oil pressure at the buffer port, achieving precise adjustment of the piston and connecting rod end stroke, avoiding rigid collision between the piston and the end cap, and suppressing impact noise at the source. This invention has a compact structure, reliable sealing, and convenient assembly, significantly reducing vibration impact and operating noise, improving the stealth of ships, and is suitable for scenarios with high vibration reduction and noise reduction requirements, such as the opening and closing of ship hull covers.

The utility model relates to tablet computer technical field, put forward a kind of tablet computer with anti-falling effect, including installation protective sleeve, the surface of installation protective sleeve is equipped with square groove, the inside of square groove is provided with double-shaft micro motor, the both ends of double-shaft micro motor are all sleeved with bevel gear, upper and lower side in square groove are equipped with round bar, the left end of round bar is also equipped with bevel gear, and round bar is sleeved with. Built-in instantaneous speed inductor and micro motor drive mechanism, automatically trigger in the moment of falling, the whole screen is sunken, air bag is landed first, avoid glass direct collision. No. 2 air bag (front) directly absorbs impact;No. 1 air bag (back) is quickly transferred to no. 2 air bag by gas communication pipe and is pressed gas, realizes secondary buffering, and impact force is dispersed by two stages. Protective film and rubber support block and double air bag sunken mechanism form the triple line of defense of "film-shell-air", give consideration to front, back and edge drop scene, significantly improve the overall anti-falling life.

A ship provided with solar panels capable of projecting at night belongs to the field of shipborne equipment and comprises a plurality of solar panel components, projectors and a ship body, the solar panel components are fixed together in the same direction and fixedly mounted on the ship body, the projectors are fixedly mounted on two sides of the ship body, and each projector is aligned with the center of the corresponding solar panel component. The solar panel can serve as a projection curtain of the projector when being vertical, the solar panel assembly is composed of the solar panel, a stand column, an upper supporting pulley, a linear guide rail, a lead screw, a lower supporting pulley, a stepping motor and a plummer block, the linear guide rail is composed of a rail and a sliding block, and the linear guide rail and the lead screw are installed on different faces of the inner side of the stand column. A sliding block of the linear guide rail and a nut of the lead screw are fixed together through a connecting piece, an installation shaft of the solar panel is installed on an inner ring of the plummer block, and the stepping motor is installed on the motor support and connected with the lead screw. The application range of the solar panel serving as a projection curtain is expanded.

The utility model discloses an anti-riot shield, which is suitable for the technical field of defense equipment, and comprises a shield main body for providing protection for resisting explosion, impact, violent confrontation and the like and a protruding area assembly arranged on the outer side surface of the shield main body, and the protruding area assembly comprises a protruding fixing part and a protruding body. Psychological deterrence is formed for violence and terrorism molecules through the protrusions on the surface of the shield, the intention of front impact of the violence and terrorism molecules is reduced, the defense effect is improved, the violence and terrorism molecules are forced to keep a distance, direct collision is avoided, and the near-body bucket winding risk is reduced; the state that the protruding bodies are completely embedded in the surface of the shield body and the state that the protruding bodies stretch out of the surface of the shield body can be switched, the shield is suitable for different scenes, the use range is expanded, and the flexibility of combat is improved.

The utility model provides a pushing assembly and a coating, filling and leakage detecting insulation quick connector. The pushing assembly comprises an insulation pushing block and an elastic supporting piece. The coating, filling and leakage detecting insulation quick connector comprises a connector body, an insulation shell, an insulation clamping assembly and a pushing assembly, a clamping channel is formed in the insulation clamping assembly, a pull rod is arranged at the head of the connector body, a sliding seat is arranged outside the pull rod in a sliding mode, and the sliding seat is connected with the head of the insulation shell. The head of the pull rod extends into the insulating shell and is provided with a pushing assembly, a first elastic piece is arranged in a second movable cavity formed among the insulating ejector block, the pull rod, the sliding base and the insulating shell, a wrench is arranged outside the connector body, the two sides of the wrench are rotationally connected to the two sides of the connector body, supporting parts are arranged on the two sides of the wrench, and the supporting parts can abut against the sliding base. According to the utility model, the insulation sealing performance is good, filling, leakage detection and coating can be carried out on the pipe fitting, and the elastic supporting piece in the pushing assembly has a buffering function, so that the operation is comfortable.

The utility model discloses a novel energy storage cabin for source network load storage, and particularly relates to the technical field of energy storage cabins, the novel energy storage cabin comprises a cabin body, a protective cover is arranged at the top of the cabin body, moving wheels are arranged at the bottom of the cabin body, an extension plate is arranged on the outer side of the cabin body, and anti-collision structures are arranged on the two sides of the cabin body; the anti-collision structure comprises anti-collision plates arranged on the two sides of the cabin body, a plurality of connecting rods are arranged on one sides of the anti-collision plates, and reset springs are arranged on the outer sides of the connecting rods. Through the arrangement of the anti-collision structure and the buffering structure, when collision occurs, the anti-collision pad is firstly collided, the anti-collision pad is made of rubber materials and can play a preliminary buffering effect, the anti-collision plate is driven to move, the interior of the connecting rod connecting cylinder on one side of the anti-collision plate stretches out and draws back, a reset spring enables the connecting rod to reset rapidly, and the connecting rod slides repeatedly; the buffer rods slide in the anti-collision barrels during collision, the buffer pads can slow down the speed of the buffer rods, the cabin body can be prevented from being directly collided, and the cabin body can operate normally.

This utility model discloses a nested anti-drop ceramic flowerpot, relating to the field of flowerpot technology. The invention provides a multi-layered anti-drop protection mechanism through a nested structure of an inner ceramic pot and an outer protective cylinder. The protective cylinder is made of high-strength, high-toughness engineering plastic, capable of directly withstanding external impacts and preventing direct collision between the inner ceramic pot and the ground. The bottom buffer groove and rubber buffer pad form the first line of defense, effectively absorbing the impact force generated when the flowerpot falls and contacts the ground. The elastic buffer protrusions on the inner wall of the protective cylinder are in close contact with the outer wall of the inner ceramic pot, allowing for elastic deformation to disperse the impact force when the flowerpot is subjected to lateral impact, reducing squeezing damage to the inner ceramic pot.

The invention relates to the technical field of bottled beverage production, in particular to a glass bottle beverage production line limiting conveying device which comprises a belt conveyor composed of a conveying belt and fixing frames arranged on the front side and the rear side of the conveying belt. A limiting unit used for guiding and limiting movement of the glass beverage bottles is arranged above the belt conveyor, and a pushing unit used for pushing the glass beverage bottles to a packaging station is arranged above the transfer table. The adopted limiting unit can conduct position correction and guide limiting on the glass bottle beverages in the conveying process, it is ensured that the glass bottle beverages in the same row are in the left-right alignment state, gaps between the front-back adjacent glass bottle beverages are eliminated, the glass bottle beverages in different rows are attached to one another, and the conveying efficiency is improved. The problem of dislocation or irregular arrangement in the conveying process is avoided, regularity and stability in the glass bottle beverage conveying process are improved, and therefore the follow-up packaging quality and packaging speed are improved.

The utility model relates to the technical field of blanking device, concretely to a non -injury type shaping hopper, including feed hopper, including the connecting portion of conical body and the conical body below, the conical body includes the inclined feed port of being located at the top, the discharge port of being located at the bottom and the detection port of being located on the side wall, airflow board, plug -in and install in the inner chamber of feed hopper, and airflow board is installed close to the higher side of inclined feed port, and airflow board is equipped with a plurality of airflow holes, the airflow room is formed between airflow board in the inner chamber of feed hopper, and the airflow room top is equipped with the apron, and the apron is equipped with the air inlet, detection device, detection device is located on the detection port, shaping part, shaping part is detachable with the connecting portion connection, vibrator, vibrator device is on shaping part. Ensure the integrity of PPE pillow type bag under the premise of successfully shaping PPE pillow type bag, avoid because the shell breakage after the inside loading solid or powder leak, block the hopper and cause the follow -up blanking not smooth, guarantee production progress normal, improve production efficiency.

The invention relates to the technical field of monitoring devices, in particular to an underground water overdraft area water level monitoring method and system. The underground water overdraft area water level monitoring system comprises a detection pipe and an adjusting mechanism, and a detection circular film is arranged at the lower end of the detection pipe. The adjusting mechanism comprises an adjusting assembly and a transmission assembly. The adjusting assembly comprises an auxiliary circular film and an extrusion ring. The transmission assembly is used for driving the auxiliary circular film to rotate, so that the contact area of the auxiliary circular film and the detection circular film is periodically replaced, and the accuracy of the detection signal is maintained. And through relative movement between the auxiliary circular film and the extrusion ring, the extrusion ring cleans the surface of the auxiliary circular film, and therefore the accuracy of water pressure transmission is guaranteed. The invention provides a water level monitoring method and system for an underground water overdraft area, and aims to solve the problems that an existing water level monitoring device is immersed in well water for a long time and is easily blocked by impurities in the water, and the measurement precision is affected.

The present application belongs to the field of bridge girder erection machine overpass technology, and discloses an auxiliary device and a method for realizing small-radius curve overpass of a bridge girder erection machine by using the auxiliary device. The auxiliary device comprises a hanger wheel assembly, a connecting frame, a plurality of limiting mechanisms and an adjusting assembly. The hanger wheel assembly is arranged to roll on the main beam of the bridge girder erection machine. The hanger wheel assembly is connected to the connecting frame, and the connecting frame is arranged on the walking mechanism. The limiting mechanism is connected to the connecting frame, and the limiting mechanism is arranged to be spaced apart from the main beam of the bridge girder erection machine to limit the main beam of the bridge girder erection machine in the transverse direction. The adjusting assembly comprises an adjusting pad, which is clamped between the limiting mechanism and the connecting frame. The distance between the limiting mechanism and the main beam of the bridge girder erection machine can be changed by increasing or decreasing the adjusting pad. The limiting mechanism is arranged to be spaced apart from the main beam of the bridge girder erection machine, so that the main beam of the bridge girder erection machine can be limited to avoid transverse instability and reduce damage to the outer side of the main beam. The size of the spacing can be changed by increasing or decreasing the adjusting pad to realize real-time limiting and ensure safe overpass.

The utility model discloses an aquatic product cultivation's water quality monitoring devices, including water quality monitoring device main part, the outside of water quality monitoring device main part is provided with the protective housing, the surface fixed connection of water quality monitoring device main part has the positioning mechanism, the bottom of water quality monitoring device main part is provided with the counterweight subassembly. The utility model discloses a protective housing is set up, when water quality monitoring device main part floats on the water surface, utilizes the protective housing to be able to carry out the protection to the outside of water quality monitoring device main part, avoids water quality monitoring device main part and the direct collision of the shore or the gravel, has solved the water quality monitoring device of current carrying buoyant body usually for the low density, buoyant high plastic material, and the shore of aquatic product cultivation usually is built into the concrete, and the gravel is more, and the corner is relatively sharp, when the wind is bigger, and the buoyant body is short of the protection structure, and its surface is easy to produce the unceasing collision with the gravel, thereby easily damaged, the problem of influencing the service life.