68results about How to "Avoid capsizing" patented technology

The invention belongs to the technical field of electronic communications of radars, and particularly relates to a cloud measuring radar. The radar comprises a main frame body, a first antenna housing and a second antenna housing, wherein the main frame body comprises a bottom sectional-material frame and a skin; the first antenna housing and the second antenna housing both form sealing fit with the top end surface of the main frame body; a receiving antenna and a left sectional-material frame are held in a housing cavity of the first antenna housing; a monitoring component and a receiver are arranged on a horizontal transverse baffle plate at the left sectional-material frame; a signal processing component and a fan are arranged at the top end surface of the main frame body just under the horizontal transverse baffle plate; a transmitting antenna and a right sectional-material frame are held in a housing cavity of the second antenna housing; a transmitter is arranged on a horizontal supporting plate at the right sectional-material frame; a power supply component is arranged at the top end surface of the main frame body just under the horizontal supporting plate. The cloud measuring radar has the advantages of being concise and portable in structure, convenient and quick to maintain, short in making period and low in cost; the batch production can be realized.

The invention relates to the technical field of fabricated shear wall, and discloses a construction technology process of a fabricated shear wall structure. The construction technology process comprises the following steps that (1) a PC component enters the site; and (2) before the prefabricated PC component enters the site, the process inspection and tensile strength inspection certificates of areinforcement connection joint are checked. In the construction technology process of the fabricated shear wall structure, according to the principle of liquid level pressure balance, if the liquid level of a slurry discharge hole in a bending section is only settled slightly, the situation that the slurry at the grouting sleeve is dense can be determined, if a large sedimentation occurs, the sealing condition of a grouting layer cavity can be checked immediately, the grouting density is ensured, the situation that grouting is not dense is prevented, a plastering free construction technology is adopted, therefore, the surfaces of prefabricated components are correspondingly constructed in accordance with high-precision and clear light during production, so as to avoid cracking and fallingoff of the decorative surfaces of an external wall in the later stage, the advantages of the prefabricated building are reflected, the requirements of green construction are met, meanwhile the invasion of an internal wall is avoided, and the quality of the shear wall is ensured.

The invention discloses a rotatable welding worktable which comprises a frame body (1), a welding machine fixing box (2), a motor (3), a rotary table (4), a connecting device (5) and a fixing ring (6). The welding machine fixing box (2) is fixed in the frame body (1), the fixing ring (6) is Omega-shaped, the inner surface of the fixing ring (6) tightly abuts against the outer surface of the motor (3), two ends of the fixing ring (6) are connected and fixed on the welding machine fixing box (2) through bolts, and an output shaft of the motor (3) is connected with the rotary table (4) through the connecting device (5). The rotatable welding worktable has the advantages that the motor (3) and the rotary table (4) are arranged, the rotary table (4) is driven to rotate by the motor, workers can achieve welding at different positions on workpieces under the condition that the workers do not need to move, welding efficiency can be effectively improved, and the Omega-shaped fixing ring (6) is arranged and effectively fixes the motor (3), and the motor (3) is prevented from falling off.

The invention relates to the technical field of fixing of containers, and in particular to a fixing device for a roll-on and roll-off container. The fixing device comprises a fixator body. The fixator body comprises a base and an arm rotating shaft. The side wall of a right inner cavity of the base is hinged to a pedal arm through a plate rotating shaft, and the side wall of a left inner cavity of the base is hinged to a locking hook B through a lock-B rotating shaft. The side wall of the left inner cavity of the base is hinged to a locking hook A and a shift fork through a shift lock-A rotating shaft. The upper surface of the right end of the pedal arm is fixedly connected with a pedal, and the left end of the pedal arm is hinged to a kidney hole of the shift fork through the arm rotating shaft. One end of the locking hook B penetrates a crossing through hole of the locking hook A, a triangular groove is formed in one side wall of the locking hook B, and a fork arm of the shift fork is provided with a fork vertex angle. A magnet is closely embedded in a magnet hole. The fixing device has the beneficial effects that a ship is prevented from shaping or turning over, and potential safety hazards are greatly reduced; and the structure is simple, arrangement is reasonable, and the manufacturing cost is low.

The invention discloses an automatic anti-sinking lifesaving system for ships, and belongs to shipbuilding, ship repairing or ship accessories. Enough extra stability, wind resistance and reserve buoyancy can be provided for a ship, the reserve buoyancy can be rapidly and automatically released to make the ship float in the initial stage of ship sinking, and it is guaranteed that the ship is stable and does not sink. The system is characterized in that the main structure of the ship is not changed, and stabilization, stability maintenance and anti-sinking lifesaving effects can be provided ina full-time and all-around mode only by additionally arranging steel stability maintenance balance fins, a permanent floating body, a safety air bag, an automatic monitoring controller and a high-pressure air supply system. High-strength flexible synthetic fiber sandwich net cloth serves as a stress framework of the air bag, and PVC airtight coatings are arranged on the two faces of the cloth. Theair bag is rigidly fixed on the ship body by using a surrounding binding type binding band. The triple methods of a hanging pendulum type automatic sensing controller, remote liquid pressure sensors,floating ball liquid level switches and manual operation are used, so that full-time and all-around automatic sensing control is achieved, and life and property safety of the whole ship and all people on the ship is guaranteed.

The invention provides a chip welding pressure block assembly. The chip welding pressure block assembly is characterized by comprising at least one group of pressure blocks (1), wherein a tenon (1a) is arranged at the top of each pressure block (1); a slot (1b) which is correspondingly matched with each tenon (1a) is formed in the bottom of the corresponding pressure block (1); a stabilizing frame (2) is arranged; and at least one pressure block stabilizing ring (3) which is correspondingly matched with each pressure block (1) is arranged on the stabilizing frame (2). The chip welding pressure block assembly has the advantages of being simple in structure, convenient to use, low in manufacturing cost, wide in application range, high in working stability and the like, and accurate quantitative control on welding pressure can be achieved.

The invention discloses a gas cylinder fixing mount which comprises a fixing seat and a fixing ring, wherein the fixing seat is channel steel, the corresponding positions of an upper flange and a lower flange of the fixing seat are respectively provided with one to two circular arc gaps of which the radian is adaptive to the bottle wall closed to the wall, of the gas bottle; the circular arc gap is provided with a fixing hole used for insertion of the fixing ring in a bilaterally symmetrical mode, and the web of the fixing seat is provided with at least two bolt holes connected with the wall;the fixing ring is a steel bar, the middle section of the fixing ring is an circular arc section, the two ends of the fixing ring are respectively a rotating section and a locating section, the circular arc section is horizontal, and the radian of the circular arc section is adaptive to the gas cylinder outer bottle wall; and the rotating section and the locating section are downward bent and vertical to the ground, the rotating section downwards passes through the upper flange and lower flange of the fixing seat, the lower ends of the rotating section and the locating section are bent into ahook form, and the locating section downwards passes through the upper flange of the fixed seat, thereby downwards prolonging the length. The gas cylinder fixing mount provided by the invention can safely and effective fix the gas cylinder, and the gas cylinder can be convenient and rapid to place in and take out, thus improving the space utilization ratio.

The invention discloses automatic silicon wafer feeding equipment achieving unintermittent feeding. The automatic silicon wafer feeding equipment comprises a rack. A first sliding base and a first sliding driving device are arranged on the rack. Two lifting tables and two servo lifting driving mechanisms are arranged on the first sliding base. Material storage frames are arranged on the lifting tables. Two material guiding belt mechanisms are arranged on the first sliding base. A transition bottom plate which moves in the direction perpendicular to the sliding direction of the first sliding base and a transition driving device are arranged on the rack. A second sliding base and a second sliding driving device are arranged on the transition bottom plate. Two material conveying belt mechanisms are erected between the second sliding base and the first sliding base. A wafer conveying backstand is arranged on the transition bottom plate. A wafer discharging belt mechanism is erected between the transition bottom plate and the rack. A wafer outlet backstand is arranged on the transition bottom plate. The first sliding base and the second sliding base move synchronously to enable the two material conveying belt mechanisms to be in butt joint with the wafer discharging belt mechanism.

The invention discloses a method for sorting goods on the basis of goods gravity centers detected by forklift trucks, and relates to the field of logistics. The method includes acquiring first weighing values of first left forks of the first forklift trucks in response to load states of the first forklift trucks carrying the first goods and acquiring second weighing values of second right forks of the first forklift trucks; solving first left-right gravity center offset according to the first weighing values and the second weighing values; placing the first goods at matched goods storage locations of logistics devices according to the first left-right gravity center offset. According to the technical scheme, the method has the advantages that the first left-right gravity center offset is solved by the aid of the weighing values of the left and right forks of the forklift trucks, so that whether the goods are in gravity center imbalance or not can be conveniently judged; the goods are sorted according to the gravity center offset and then are stored at the corresponding locations of the logistics devices, accordingly, left-right balance degrees of the goods on goods transport devices can be effectively upgraded, rollover or shipwreck due to the goods during turning driving can be prevented, and the accident incidence can be reduced.

The invention provides a large-diameter marine air pipe head. The large-diameter marine air pipe head comprises an outer shell (1), a plurality of inner shells (2), an end cover (3), a flange connector (4), floating barrels (5) and sealing covers (6). The end cover (3) is arranged at the top of the outer shell (1), and the flange connector (4) is mounted at the bottom of the outer shell (1). The inner shells (2) are arranged in the outer shell (1). The sealing covers (6) are arranged on the upper sides of the inner shells (2) respectively to form switching cavities (7). The spherical floating barrels (5) are arranged in the switching cavities (7) respectively. A round hole (12) is formed in each sealing cover (6). Each inner shell (2) is in the shape of a barrel with an upward opening. A protective net (9) is mounted on the round hole (12) of each sealing cover (6). A plurality of air inlets (11) formed in the outer shell (1) are communicated with the lower sides of the switching cavities (7) of the respective inner shells (2). The large-diameter marine air pipe head can seal air channels timely and effectively and is economical and durable.

The invention relates to an intelligent tilt adjustment system and belongs to the field of shipbuilding and upgrading and rebuilding of old ships. The frequent occurrence of shipwreck accidents is mainly caused by the fact that ships are unsteady and tilted and thus water enter. If tilting of the ships can be timely found and timely adjusted, the shipwreck accidents are avoided. The system can automatically monitor and adjust tilting of the ships, the balance of the ships is ensured, and no shipwreck accidents occur. The system is mainly composed of a tilt adjustment bin, a ship tilting monitoring controller and a high pressure gas supply system. Full-time and omnibearing automatic tilting adjustment can be achieved, and when the ships encounter the extreme danger and tilting adjustment isinvalid, the system can automatically alarm and automatically start emergency facilities. The externally hung air-cushion type intelligent tilting adjustment bin has damping and anti-shaking functions, the ships thus can rise and fall in water, and the tilting adjustment bin plays a role in lowering the center of gravity, maintaining the stability and relieving shaking. A pressure sensor can monitor cargo loading and balancing situations on the ships, and overload or load imbalance is prevented. An emergency monitoring controller can monitor any wreck danger and give an alarm.

The invention relates to a super high-rise external facade steel structure horizontal protective platform, and belongs to the technical field of high-rise building construction. The platform comprisesH-shaped steel, a U-shaped steel bar, a steel angle, a steel plate and a protective barrier. A section of the H-shaped steel is arranged out of a floor. The steel plate is placed at the section, outside the floor, of the H-shaped steel. The protective barrier is welded to the end of the steel plate. A T-shaped groove is formed in the bottom wall inside the H-shaped steel. A steel rod consistent with the H-shaped steel in length and direction is arranged inside a concave opening in the H-shaped steel. A T-shaped base sliding inside the T-shaped groove is arranged on the steel rod. A strip-shaped hole is formed in the upper surface of the H-shaped steel. A connecting strip is arranged on the steel rod. The connecting strip penetrates through the strip-shaped hole to be welded to the steel plate. A pushing assembly for pushing the steel rod to move in the length direction of the H-shaped steel is arranged on the floor at one side of the H-shaped steel. The platform has the advantages that after building materials are placed, the overall stability is improved, and the space of the horizontal protective platform is adjusted conveniently.

The invention discloses an offshore floating island which comprises a plurality of floating platform modules, and each floating platform module is provided with a main floating body frame formed by aclosed annular columnar floating body, an offshore operation platform which is arranged above the main floating body frame and is used for bearing various offshore operation buildings, and a lower frame body which is arranged below the main floating body frame and formed by annular floating bodies, wherein the offshore operation platform and the main floating body frame as well as the lower framebody and the main floating body frame are connected through hollowed-out connecting structures extending longitudinally, and each hollowed-out connecting structure is formed by a floating body of a hollow structure; the displacement of the main floating body frame is greater than the total structural weight of the floating platform modules; the offshore floating island further comprises mooring ropes or anchor chains which are used for connecting every two adjacent floating platform modules, passage channels which are arranged among the floating platform modules and are used for personnel andgoods circulating, and a mooring system which is used for fixing each floating platform module in a destination sea area. The offshore floating island is low in construction difficulty and cost, and has higher storm resistance and self-adjusting capacity adapting to sea conditions.

The invention relates to an emergency assault boat propeller protection device, which comprises a connecting rod, a stop rod is arranged at the end of the connecting rod, and sawtooth blades are arranged on both sides of the stop rod. The invention installs a protective device around the propeller to prevent foreign objects from winding the propeller, and avoid ship capsizing and injury accidents caused by the sudden stop of the propeller's external force.

The invention discloses an offshore floating island. The offshore floating island comprises a plurality of floating platform modules, offshore operation platforms, lower frame bodies and a mooring system, wherein all floating platform module are provided with main floating body frames formed by closed annular columnar floating bodies, the offshore operation platforms are arranged above the main floating body frames and are used for carrying various offshore operation buildings, the lower frame bodies formed by annular floating bodies below the main floating body frames, the offshore operationplatforms and the main floating body frames are connected with the lower frame bodies and the main floating body frames through longitudinally extending hollow connecting structures, and the hollow connecting structure is formed by floating bodies with hollow structures; the water discharge amount of the main floating body frames is larger than the total weight of the structures of floating platform modules, a mooring rope or an anchor chain connected with two adjacent floating platform modules, passage channels are arranged between floating platform modules and are used for carrying out personnel and cargo circulation, and the mooring system is used for fixing each floating platform module in a destination sea area. According to the offshore floating island, the offshore floating island group and a construction method of the offshore floating island, the offshore floating island has the advantages of being low in construction difficulty and cost, higher in storm resistance and capableof adapting to the self-adjusting capability of sea conditions.

The invention relates to a quick-drop type vertical trawl used for biological resource investigation in an Antarctic sea area and a using method. The vertical trawl comprises a retractable rope, net opening edge ropes, support rods, a central support, a netting, a connecting platform and a collecting barrel, the lower end of the retractable rope is connected with the central support, and the central support is radially provided with a plurality of support rods in the circumferential direction; and the inner side ends of the support rods are rotatably connected with the central support, when the support rods rotate downwards to the horizontal position, the bottoms of the support rods and the central support form a limiting support in the horizontal direction, and the net opening edge ropesare elastic ropes and connected with the outer side ends of the support rods in the circumferential direction. The upper end of the netting is connected with the net opening edge ropes, the lower endof the netting is connected with the connecting platform, the netting is funnel-shaped when unfolded, and the upper end of the collecting barrel is connected with the connecting platform through a quick detachable structure. The vertical trawl can be folded, stored, transported and thrown, the descending speed of the trawl thrown into water can be increased, the overturning situation is effectively avoided, and sampling is convenient.

The invention provides a fixed line unmanned ship operation method. The method includes the steps of obtaining an electronic chart in a working area, rasterizing the obtained electronic chart, arranging artificial signal beacons at grid points, storing position coordinates in the artificial signal beacons, distributing buoy nodes on the sea surface of the working area, and forming a self-assemblynetwork through the artificial signal beacons and the buoy nodes. The sailing direction of an unmanned ship is modified through the artificial signal beacons, the drift distance generated by marine GPS navigation / Beidou satellite positioning is eliminated, and it is ensured that the unmanned ship is driven on a correct ship route; in addition, the self-assembly network is formed by the artificialsignal beacons and the buoy nodes, a data interaction network of the sea surface and a remote control center is established, and the state of the unmanned ship and the state of the sea surface can bemonitored in real time.

The invention discloses an automatic berthing system of an unmanned ship. The automatic berthing system of the unmanned ship comprises an unmanned ship main body, an automatic berthing device, a convenient movable loading and unloading board and anti-overturning safety devices, wherein the back of the unmanned ship main body is electrically connected with the automatic berthing device; the inner side of the inside of the unmanned ship main body is fixedly connected with the convenient movable loading and unloading board; two sides of the periphery of the unmanned ship main body are movably connected with the anti-overturning safety devices; and the bottom of one side of the unmanned ship main body is fixedly connected with a draft indicating line. The draft indicating line embodies the practicality of the unmanned ship. Signal flashing lights well embody the safety of the unmanned ship. An attachment hook well embodies the convenience of the unmanned ship. The automatic berthing devicewell embodies the intelligence and automaticity of the unmanned ship. The convenient movable loading and unloading board well embodies the high efficiency of the unmanned ship. The anti-overturning safety device well embodies the safety of the unmanned ship. The automatic berthing system of the unmanned ship is suitable for the use of unmanned ship control and has broad development prospects in the future.

The invention discloses a foundation underpinning method around a foundation pit. The method comprises the following steps of: 1) selecting the place for excavating a foundation pit, and arranging a row of cast-in-situ bored piles on the two opposite sides of the building foundation close to the foundation pit side respectively; 2) excavating the soil close to the foundation pit side till the foundation bottom, and planting bars on the two opposite sides of the building foundation; 3) binding the pile cap beam steel bar, and enabling the planted bars to extend into the pile cap beam so that the cast-in-situ bored piles are connected with the building foundation; 4) pouring the pile cap beam, enabling the building foundation to penetrate through the pile cap beam to form a reinforced concrete structure with the cast-in-situ bored piles on the two opposite sides, wherein the side section of the structure has an 'n' shape; and 5) excavating the foundation pit. By using the method in the invention, a foundation protection support and expansion system is built, the side load of the original building foundation is underpinned to the pile bodies on the two sides, and the differential settlement and overturning collapse caused by excavating the shallow-foundation building can be avoided. The method disclosed by the invention can be applied to the excavation operation of a foundation pit with relatively shallow building foundations on adjacent sides.

The invention discloses a single-column anti-seismic transformer substation used for achieving seismic resistance after the gravity center of the transformer substation rises. The transformer substation comprises a box type integrated transformer substation body, concrete stand columns, auxiliary supports and a center regulating support, wherein the center regulating support is installed in the middle of the lower bottom surface of the box type integrated transformer substation body, and four sets of auxiliary supports are symmetrically installed at four corners of a concrete installation platform with the center regulating support as the center; the center regulating support comprises an upper part, a middle part and a lower part, the middle part comprises a first sliding plate and a second sliding plate which are stacked from top to bottom, and sliding fit is achieved between the first sliding plate and the second sliding plate. The transformer substation has high anti-seismic performance; the center regulating support can absorb part of seismic energy, especially seismic energy in the horizontal direction, through friction when an earthquake occurs; meanwhile, overall elasticity can be improved through cooperation of the center regulating support and the auxiliary supports.

The invention discloses an overturn-preventing unmanned aerial vehicle take-off and landing platform with self-weight increased along with sea wave intensity, and relates to the technical field of flight auxiliary equipment. The platform comprises a lifting platform, and the middle part of the lifting platform is fixedly connected with a lifting mark; an inner ring positioning part is fixedly connected to the outer side of the lifting mark, a navigation lamp is fixedly connected to the outer side of the inner ring positioning part, an outer ring positioning part is fixedly connected to the outer side of the navigation lamp, a flow guide groove is formed in the outer side of the outer ring positioning part, and four hinges are movably connected to the outer side of the lifting table. According to the overturn-preventing unmanned aerial vehicle take-off and landing platform, through lifting marks, inner ring positioning and outer ring positioning, the unmanned aerial vehicle take-off andlanding auxiliary device can provide an accurate landing position in the take-off and landing process of the unmanned aerial vehicle to improve the take-off and landing accuracy, provide illuminationthrough the navigation lamp when the visibility is low or a take-off and landing task is carried out at night, play a role in auxiliary positioning, improve the practicability and applicability of the device and enable the device to have the condition of all-weather operation.

The invention discloses a logistic sorting forklift, and relates to the field of logistics. The logistic sorting forklift comprises a forklift main body and a master controller, wherein the master controller is electrically connected with a first left weighing device and is also electrically connected with a second right weighing device; and the master controller comprises a weighing and acquiring module, a left- right center-of-gravity shift solving module, a center-of-gravity-based sorting module and a cargo allocation module. A first left-right center-of-gravity amount is solved through a left-right fork weighing value of the forklift, whether the center of gravity of goods is out of balance or not is judged favorably, and the goods are sorted according to the center-of-gravity shift amount, and then are stored at corresponding positions of a logistic device. By the technical scheme, the left-right balance degree of the goods on a freight unit is improved effectively, goods vehicle or ship rollover in turning driving is avoided, and the accident rate is reduced.

The invention belongs to the technical field of yachts and discloses a capsizing and sinking preventing archaistic yacht. The capsizing and sinking preventing archaistic yacht comprises a yacht body. The surface of the yacht body is paved with a deck, the deck is provided with an archaistic cabin, the part, between an archaistic coaming and a shipboard, of the deck is provided with a vegetation placement groove, vegetation placement vessels are fixedly installed in the vegetation placement groove, and plants are planted in the vegetation placement vessels. The bottom of the yacht body is fixedly connected with an air bag, a groove is formed in an inlet of the deck, a first spring is connected into the groove, a pedal is connected with the free end of the first spring, and the upper plane of the pedal is flush with the deck. The capsizing and sinking preventing archaistic yacht further comprises an air cylinder. The air cylinder comprises an air cylinder body, an air cylinder piston rod is arranged in the air cylinder body in a sliding mode, an air cylinder air outlet is formed in the bottom of the air cylinder body, the air cylinder piston rod penetrates through the groove from bottom to top and is fixedly connected with the pedal, and the air cylinder air outlet is matched with an air bag opening. By means of the technology, it can be guaranteed that the archaistic yacht cannot capsize or sink.

The invention discloses an upper and lower double-track combined artificial wave-making system which comprises a wave-making pool, a supporting mechanism, a moving module and a power mechanism drivingthe moving module to move back and forth along a first track and a second track. The supporting mechanism comprises a first support mechanism arranged in the wave-making pool and longitudinally passthrough the wave-making pool, a second support mechanism arranged above the wave-making pool and is parallel to the first support mechanism, and the first track and the second track are arranged alongthe extending directions of the first support mechanism and the second support mechanism. The moving module includes a first vehicle body moving along the first track and a second vehicle body movingalong the second track, the first vehicle body and the second vehicle body are connected by a rigid connecting mechanism. At least one side of the first vehicle body is provided with a wave-making board which is at least partially immersed under a liquid level and pushes water in a moving direction during the movement.

The invention provides a heat preservation type feeding device based on nursing of the digestive system department and a using method, relates to the technical field of feeding of the digestive system department, and solves the problems that in the practical application process of an existing feeding device, liquid food cannot be effectively prepared from multiple kinds of mixed food for feeding, and thus liquid food eaten by a patient is single in nutritional ingredient, the body of the patient cannot be recovered conveniently, and the patient feels uncomfortable and even dies due to the fact that the food easily flows into an airway mistakenly when the patient lies to eat the liquid food exist in the prior art. The device comprises a containing mechanism, the containing mechanism is connected to the left side of the top end face of the bearing mechanism in a clamped mode. After a pump machine in the pumping mechanism is started, broken liquid food can be sucked from the inner wall of the tank body through the pump machine, and then the liquid food flows into the heating tank clamped to the position of an open groove in the heating base to be continuously heated, therefore, the purpose of continuously heating the liquid food eaten by the patient can be achieved.

The invention discloses a construction method for penetrating through a goaf deep pile foundation. During construction above a goaf roof covering layer, rapid construction is carried out by means of the characteristics of high hole forming speed and quality of rotary drilling, rotary drilling is controlled by a computer, a drilled hole can be accurately positioned, the hole verticality and drilling depth are automatically calibrated, and the drilling quality is guaranteed to the maximum extent. When a goaf roof is drilled, the goaf roof is constructed through a Wukas impact drill, the coal seam roof can be broken through rapidly by means of the gravitational potential energy of a punch hammer, the overturn accident caused by rising speed of drilling through the goaf roof in a rotary cutting mode is prevented, the construction time is shortened, and the risk in the construction process is lowered.

The invention discloses an anti-overturning structure of a single-pier bridge. The anti-overturning structure is used for solving the problem that the single-pier bridge is prone to overturning. The anti-overturning structure comprises auxiliary supporting blocks installed on the two sides of a bridge pier stand column, a self-aligning support installed between the bridge pier stand column and a bridge beam bottom, and anti-falling devices installed between the auxiliary supporting blocks and the bridge beam bottom, wherein the self-aligning support comprises a first plate, a second plate and a third plate which are arranged from top to bottom, the three plates are matched in an inserting connection mode, and meanwhile a friction speed reduction structure is arranged. Each anti-falling device comprises an embedded part, a guide post, belleville springs, anti-loose locking parts and a dust cover. The anti-overturning structure is simple, applicable to all single-pier bridges, wide in application range, applicable to construction of new bridges and also applicable to transformation of old bridges.