150 results about "Falling Objects" patented technology

The invention belongs to the technical field of geotechnical engineering drilling, and particularly relates to an instant pipe-following anti-falling object device for broken stratum drilling, which comprises a drilling machine power head and a drilling rod, a drill bit is arranged at one end of the drilling rod, an inner wall protection sleeve is arranged outside the drilling rod, and the inner wall protection sleeve is connected with the drilling machine power head through a linkage assembly. An outer wall protection sleeve is arranged outside the inner wall protection sleeve, the outer wall protection sleeve and the inner wall protection sleeve are connected through an elastic assembly, a sliding fit clearance cavity is formed between the outer wall protection sleeve and the inner wall protection sleeve, and a sliding guide assembly and a permanent magnet assembly are arranged in the sliding fit clearance cavity; a sensing assembly and a propelling assembly are arranged on the drill rod; according to the device, by integrating the linkage assembly, the elastic assembly, the permanent magnet assembly and the central controller, instant synchronous movement of the wall protection sleeve and the drill bit is achieved, hole wall collapsing objects are effectively blocked, drill burying and drill jamming accidents are completely eradicated, and the construction efficiency is improved.

The utility model discloses a tunnel punching device, which belongs to the technical field of tunnel machinery and comprises a bearing plate, a drilling machine, a driving mechanism, a driving mechanism and a driving mechanism. The slag receiving cylinder and the water storage tank are both arranged on the bearing plate, and the drill bit movably penetrates through the bottom wall of the slag receiving cylinder; the annular pipe is arranged on the periphery of the slag receiving cylinder, and a plurality of spray heads are communicated with the annular pipe; the conversion cylinder is arranged on the water storage tank, and the conversion cylinder is connected with a linkage mechanism; according to the scheme, most disintegrating slag generated during punching can fall into the slag receiving cylinder, so that the threat of falling objects is reduced, and the safety protection effect is improved; meanwhile, under the cooperation of the linkage mechanism and the driving mechanism, water in the water storage tank is guided into the conversion barrel through the linkage mechanism, then the water is sprayed out through a spray head on an annular pipe, the sprayed water can conduct dust falling treatment on the periphery of the punching position, and the construction environment and the health of workers are better protected; and moreover, the shielding of dust on the sight line can be reduced, and the punching quality and effect are greatly improved.

The invention provides an anti-falling device for building construction management, which structurally comprises balance blocks, positioning blocks, locking bodies, grooves and a protective structure, the balance blocks are arranged at the upper and lower positions of the positioning blocks, the positioning blocks are mounted on a building through the locking bodies, and the positioning blocks are connected with the two ends of the protective structure through the grooves; on the basis of the stainless steel positioning block and the locking body, the two ends of the anti-rust body can be positioned through the grooves, then the anti-rust body is fixed through a rebound frame, a rubber block and a magnetic attraction block, the effect of convenient disassembly and assembly is achieved, and then building falling objects can be effectively received and positioned through a rebound net and an elastic block in a receiving groove; and an original pure wood support and an independent rebound net are replaced, so that the durability is improved, the situation that the whole rebound net is punctured due to impact force is prevented, and the actual use strength of the anti-falling object can be improved.

The utility model relates to tower crane technical field, especially safety protection type tower crane, including main body stand, be equipped with a plurality of support frame and with the installation block that is connected to it on main body stand, a plurality of protective net, protective net is connected with the installation block through second mounting bolt, a plurality of telescopic subassembly, telescopic subassembly both ends are connected with the installation block and support plate respectively through connecting component, and support plate bottom end is connected with fixed cone, a plurality of building link frame, and building link frame includes spiral groove disc and cross -bracing pull frame, spiral groove disc is connected support frame through carousel, and cross -bracing pull frame is connected spiral groove disc through plug connector, the utility model discloses through the setting of telescopic subassembly and installation block, can four -sided support to tower crane body, and the ability of anti -tilting is strengthened, through the setting of protective net, can undertake the component such as falling, effectively reduce the risk of high -altitude falling object to hurt the equipment and the personnel below, utilize the overall structure of building to share horizontal load, and the stability is strengthened.

The utility model relates to express sorting technical field, concretely relates to a sorting frame and sorting system. The sorting frame includes backboard, guide structure and two side plates, and the two side plates are spaced apart in the first direction, the backboard is connected to one side of the two side plates in the second direction to cooperate with the two side plates to define a falling object space, and the side of the falling object space away from the backboard is formed with an entrance, the guide structure includes a first guide plate, the first guide plate includes a first guide plate body, the first guide plate body is arranged at the entrance, and the first guide plate body gradually extends towards the gravity direction and the direction close to the backboard from the side away from the backboard, wherein the first direction, the second direction and the gravity direction are perpendicular to each other, specifically, most of the articles pushed out of the conveying belt are first received by the first guide plate body arranged obliquely, and then further guided away from the conveying belt, so that the articles will not overturn under the action of gravity and hit the lower conveying belt.

The application relates to the technical field of safety helmets, in particular to an impact device for safety helmet testing, which aims to solve the problem that it is inconvenient to switch the impact head during testing, and comprises a base, two vertical plates fixedly installed on the upper surface of the base, a sliding rod fixedly installed on the upper surface of the base, a folding assembly arranged above the base, an impact assembly arranged above the base, and a positioning assembly arranged outside the impact assembly. Through cooperation of a motor, a rotating wheel and a steel wire rope, the impact assembly can move downwards, the impact head can move downwards, the safety helmet can be impacted, the clamping ring can be rotated through the spring, the arc-shaped plate and the positioning block, the clamping ring can drive the rotating shaft and the triangular plate to rotate, the triangular plate can drive the pressure sensor, the conical head, the circular head and the square head to switch, so that the device can simulate different falling objects when the safety helmet is tested, and the precision of the safety helmet impact test is improved.

The utility model discloses safety protection equipment for oil field underground operation, which comprises a base, a top plate is arranged above the base, the upper end of the base is provided with two and four sliding chutes, and a buffer mechanism for buffering the top plate is jointly arranged in the two sliding chutes on the same side. The buffering mechanism comprises two sliding blocks slidably connected into the two sliding grooves, grooves are formed in the upper ends of the two sliding blocks correspondingly, rotating rods are rotationally connected into the two grooves correspondingly, fixing blocks are rotationally connected to the ends, away from the sliding blocks, of the two rotating rods correspondingly, and the upper ends of the two fixing blocks are fixedly connected to the lower end of a top plate. The side walls of the two sliding blocks are elastically connected with the inner wall of the sliding groove on the same side through springs. The device is reasonable in structure, falling objects can be blocked through the buffering mechanism and the top plate, meanwhile, when the falling objects make contact with the top plate, the top plate is buffered, top plate damage caused by impact force is avoided, and the service life of the device is prolonged.

This invention discloses an integrated driver protection device, relating to the field of vehicle protection technology, aiming to solve the problem of limited protection capabilities of the body of mining vehicles for drivers and passengers in existing technologies. The protection device includes a connecting mechanism, an anti-rollover frame, and an anti-falling object mechanism installed sequentially from bottom to top. The connecting mechanism is used to fix the anti-rollover frame to the vehicle frame assembly. The anti-falling object mechanism is connected to the anti-rollover frame via a fixing mechanism and is located on the side of the anti-rollover frame closer to the driver's cab. The anti-rollover frame is a multi-layered rectangular frame formed by interconnected crossbeams and longitudinal beams. The anti-falling object mechanism and the anti-rollover frame are combined together by the fixing mechanism, enabling the protection device to simultaneously provide anti-rollover and anti-falling object functions.

The utility model discloses a scissors fork type lifting overhead working truck capable of rotating in situ and transversely moving, and relates to the technical field of overhead working trucks, the scissors fork type lifting overhead working truck comprises a scissors fork type working truck body, the left side and the right side of the scissors fork type working truck body are fixedly provided with fixed boxes, and rotating rods are rotationally arranged at the bottom of the inner side of each fixed box and close to the center; a lifting frame sleeves the outer edge of the rotating rod close to the top end, a protective frame is mounted at the top of the lifting frame, and an adjusting assembly is arranged on the inner side of the fixed box and located at the bottom of the lifting frame. The lifting frame drives the protection frame to move upwards to a proper height, meanwhile, through matched arrangement of the adjusting assembly and the supporting assembly, falling objects in an operation area can be contained in an unfolding mode, stability is better, and shaking of the shear fork type operation vehicle body caused when the falling objects are borne is avoided.

The utility model discloses a climbing frame device and hoisting machinery, the climbing frame device comprises a climbing frame body and a first plugging device, the first plugging device is arranged on the climbing frame body and comprises a first pin control drive and a first pin storage box with a first pin storage cavity, and the first pin storage cavity can be used for stacking a plurality of pin shafts in sequence from bottom to top; a pin outlet channel is formed in the position, corresponding to the lowermost pin shaft, of the first pin storage cavity, and the first pin control driver can stretch into the pin outlet channel to push the lowermost pin shaft to be inserted into an alignment pin hole of a standard knot or push out the pin shaft in the alignment pin hole, so that automatic disassembly and assembly of the pin shafts are achieved; the purposes of avoiding the phenomena that the pin shaft is damaged, workers are tired and objects fall from high altitudes due to human errors, and improving the disassembly and assembly speed and the operation efficiency are achieved.

This utility model relates to the field of protective device technology, and discloses a safety protection device for geological disaster control engineering construction. It includes a support frame, with a support plate fixedly connected inside the support frame. Multiple fixing plates are fixedly connected to the front side of the support plate. Fixing rings are fixedly connected to the four corners of the front side of each fixing plate. Limiting posts are fixedly connected inside two pairs of fixing rings in the same vertical direction. Two connecting plates are rotatably connected to the outside of each of the two limiting posts. Moving posts are rotatably connected inside two pairs of connecting plates in the same vertical direction. Two transmission plates are rotatably connected to the outside of each of the two moving posts. In this utility model, the impact force acts on the shock-absorbing mesh, pushing the extrusion plate backward. Position correction is achieved by restoring the air pressure inside the sealed chamber and then extruding the extrusion plate again, thus achieving a buffering and shock-absorbing effect on falling objects and preventing injury to workers operating at the bottom of the work area.

This invention provides a method and system for preventing falling objects from under quay crane lifting equipment, relating to the fields of vision and deep learning technologies. It aims to accurately identify and locate the position of an obstructed object before it falls or is obstructed. The method includes: detecting video frames using a YOLOv5x visual detection network to obtain detection results; performing tracking prediction based on the detection results using the DeepSort algorithm and a re-identification algorithm to obtain tracking prediction results; labeling the tracking prediction results based on the similarity between the detection results and the tracking prediction results; projecting the tracking prediction results onto the plane of the image captured by a trolley-mounted camera to obtain the projected tracking prediction results from the trolley-mounted camera's perspective; calculating the ground projection area of ​​the lifting equipment from the trolley-mounted camera's perspective based on the lifting equipment size, determining whether there is a risk of falling objects, and sending an alarm message to the quay crane. This system is applied to the method of preventing falling objects from under quay crane lifting equipment.

The invention discloses a movable protection mechanism for indoor decoration operation and a method thereof, and relates to the technical field of decoration. A protection bearing assembly is installed in the middle of the top face of an electric shear fork frame, the top end of a guide rod is movably sleeved with a protection guide pipe, a protection electric push rod is installed on one side of the top face of a supporting disc, and spring blind pipes are symmetrically welded to the top face of an outer sleeve; a protective screen is installed at one end of the top face of the outer sleeve through a bolt, a tool storage assembly is installed on one side of one arc-shaped clamping plate, the protective screen is installed, a protective motor drives a movable blocking screen to rotate, a movable baffle is pulled along a shielding rail, and falling objects on the inclined upper portion are shielded through the movable blocking screen and the movable baffle; more outer sleeves can be installed according to needs, the protection area is further enlarged, the protection effect is changed according to the actual situation, the position of the protection screen is adjusted, the safety of decoration personnel in the construction process is guaranteed, the accident occurrence probability is reduced, and meanwhile damage to surrounding objects can be avoided.

This invention relates to the field of prefabricated cabin technology, specifically a high-strength metal prefabricated cabin structure device, including a forklift cabin. A protective steel plate is provided on the top of the forklift cabin. Two columns are installed on the lower surface of the protective steel plate near the back of the forklift cabin. Multiple limiting rings are installed on the columns at equal intervals from top to bottom. A guide seat is provided below a compression spring. One end of the guide seat is connected and fixed to the forklift cabin. A guide hole is opened on the upper surface of the guide seat, through which the columns pass. The compression spring is sleeved on the column. This invention has the following beneficial effects: Adding a protective steel plate to the top of the forklift cabin serves as the first line of defense against impact, absorbing the direct impact of falling objects from a height, preventing the impact force from directly acting on the main body of the forklift cabin, fundamentally preventing irreversible damage such as dents and bends in the forklift cabin, significantly improving the impact resistance and protection capability of the forklift cabin, and ensuring driver safety.

This application discloses a falling object detection method, apparatus, and computer-readable storage medium. The falling object detection method includes: acquiring a moving target region image in an image to be identified; tracking the moving target in the moving target region image to obtain the trajectory information of the moving target; and determining whether a falling object phenomenon has occurred in the image to be identified based on the moving target trajectory information; wherein the falling object phenomenon includes a change in the position of the moving target in a reference direction. Through the above methods, this application can improve the accuracy of falling object detection.

The utility model discloses a kind of turnover assembly type tower crane foundation protection plate, it is related to building construction field, including outer fender, inner circle fender and tower crane foundation, the upper surface of the tower crane foundation is installed with tower crane standard section, the outer fender is installed on tower crane foundation surface and located tower crane standard section outside. By eight trapezoidal steel plates of outer fender by bolt connecting piece one and insert structure stacking assembly, then the inner circle fender is stacked into four prism by four L-shaped steel plates, inside closed protection is formed at this time, outer fender covers tower crane foundation periphery, prevent personnel to climb or falling object impact, the standardization design of trapezoidal steel plate and L-shaped steel plate, support quick assembly and disassembly, adapt to different tower crane foundation size, meanwhile, the protection is clearly divided safety area, avoid personnel to enter tower crane work area at will, reduce the risk of high-altitude falling object and mechanical injury, reach the effect of repeatable turnover, save cost.

The invention provides a splicing type partition frame structure, which relates to the technical field of partition frames, and comprises a frame body plate, a placing part and an auxiliary part, the number of the frame body plates is two, and the inner sides of the two frame body plates are each provided with an insertion groove used for installing the containing part. And three placing parts are mounted on the frame body plate in a linear array shape. As the distance between the adjusting hole and the pull arm is 5cm, the fingers of a child are short and cannot penetrate through the adjusting hole and touch the pull arm in the using process, dangerous accidents caused by disassembly and assembly of the child can be avoided, and the problem that after articles are placed on the partition frame, indoor decorative articles have large attraction to the child, and the safety of the child is affected is solved. At the moment, a child is easy to take, and at some positions where the child is inconvenient to take, the child is easy to take after the child is detached, and at the moment, safety accidents, such as the dangerous accidents that the child is injured by a crashing object, are easily caused.

The utility model relates to the technical field of anti-striking supports, in particular to an anti-striking device for a transponder, which comprises a support body, the support body comprises a front-end anti-collision part and a rear-end mounting part which are sequentially connected, and the front-end anti-collision part is higher than the rear-end mounting part and forms a structure with a raised front end and a groove at the rear end. The support body is provided with a front-end anti-collision part and a rear-end installation part, the front-end anti-collision part is used for preventing falling objects of a train from hitting the transponder, and the rear-end installation part is used for fixedly installing the transponder. Due to the fact that the front-end anti-collision part is higher than the rear-end installation part to form a structure with the front portion higher than the rear portion, the front-end anti-collision part can block falling objects falling from a train and prevent the falling objects from colliding with a transponder of the rear-end installation part, the transponder is effectively protected, and it is guaranteed that the transponder operates stably and reliably.

This invention relates to the field of building canopy technology. To address the lack of interception capabilities for falling objects from heights in existing building canopies, this invention discloses a building buffer canopy designed to prevent such incidents. The canopy includes a roof panel, with a mounting housing at one end. An inclined buffer plate is movably mounted on the side of the mounting housing near the roof panel. In use, when a falling object lands on the buffer plate, the buffer airbag is compressed and deformed. Air from the buffer airbag is then transported via a connecting pipe to a blocking airbag. The inflated blocking airbag extends from the mounting housing and blocks the side of the buffer plate, preventing the falling object from sliding off and causing danger. Simultaneously, an alarm sounds, alerting people to stay away from the area around the roof panel and prompting staff to promptly check and remove any falling objects intercepted by the blocking airbag on top of the buffer plate, thus enhancing safety.

The utility model discloses a hanging basket which comprises a hanging basket body, the tops of the two ends of the hanging basket body are each provided with a moving mechanism used for adjusting the construction position, the outer side of the hanging basket body is provided with a protection mechanism used for shielding and preventing falling, and the two sides of the hanging basket body are each provided with a protection mechanism used for protecting constructors. Through the matching arrangement of the moving mechanism, the protection mechanism and the protection mechanism, the safety protection performance in the construction process is improved, the position of the lateral guardrail during protection can be adjusted, so that the actual requirements of people can be met for adjustment, the hoisting of a steel wire rope and the hoisting of a steel structure and a steel rail are adapted, and the hoisting efficiency is improved. The lifting basket has the advantage of lifting diversity, the transverse position can be adjusted according to needs by adopting steel rail lifting, the protection mechanism has the advantage of protecting the side direction and the top, and the situation that falling objects damage the lifting basket is avoided.

The utility model provides an environment-friendly hanging basket for bridge construction. The environment-friendly hanging basket is used for solving the problem that in the prior art, tools or concrete and the like used in the construction process can fall off from pores of a protective net. The device comprises a fixing support, an operation platform and a protection platform, the protection platform is arranged below the operation platform, and the projection area of the protection platform on the horizontal plane is larger than the area of the operation platform, so that the protection platform and the operation platform are arranged on the fixing support; the periphery of the protection platform extends by a certain distance relative to the operation platform, so that when tools, concrete and other objects fall off from the operation platform in the construction process, the protection platform can catch the falling objects, the falling objects are prevented from falling below a construction area, and safety accidents or sensitive water pollution are avoided.

The utility model discloses a protection device for elevator detection, and belongs to the field of elevator detection.The protection device for elevator detection comprises a lift car track, a working platform capable of being separated from the top of a lift car is arranged on the lift car track, and electric suction cups used for being adsorbed to the top of the lift car are arranged at the four corners of the bottom of the working platform correspondingly; rail driving assemblies used for driving the operation platform to move on the lift car rails are fixedly installed on the side faces of the operation platform, a protective fence is arranged on the edge of the operation platform, and a hanging net is fixedly installed on the protective fence. According to the protection device for elevator detection, the combination of the electric suction cup and the rail driving assembly enables the platform to run independently of the elevator car, even if the elevator car is out of control, the platform can still be kept stable through the rail, personnel are prevented from falling along with the elevator car, meanwhile, the hanging net covers the upper portion of an operation area, falling objects such as tools and screws are effectively intercepted, and the risk of head injury is reduced.

The present application relates to the technical fields of engineering operation safety protection, in particular to a kind of safety protection device for building outer wall edge operation, including support steel column, gyro wheel, connecting cross bar, No.1 protective plate, support cross bar, support plate, mobile support unit, anti-falling unit, safety rope fixing unit, support reinforcement unit.The existing scaffold needs to move scaffold position multiple times, which leads to low work efficiency.Workers cannot adjust the position after falling, which is easy to be injured again, and there may be problems of high-altitude falling objects injuring people and damaging scaffolds.The mobile support unit, anti-falling unit and safety rope fixing unit of the safety protection device for building outer wall edge operation can increase the working area and improve the work efficiency, can pull the accidentally fallen workers back to the safe position, avoid secondary injury, and the large support area is more stable, which can avoid the problems of high-altitude falling objects injuring people and damaging scaffolds.

This invention belongs to the field of safety helmet technology, specifically disclosing a multifunctional safety helmet, including a shell, an inner shell, a cushioning and warning component, a tightening strap, and an assistive dustproof breathing device. This invention achieves active protection and team early warning without energy consumption by automatically sounding an alarm when a falling object hits the helmet through a purely mechanical impact alarm mechanism; it also innovatively recovers and reuses exhaled energy, significantly reducing inhalation resistance and improving comfort during extended wear through an exhalation-energy storage and inhalation-energy release assistive method. The entire system is compact, requires no external power supply, and is safe and reliable. While ensuring head protection, it simultaneously solves the industry pain points of traditional dust masks, such as difficulty breathing and the inability to provide timely warnings after an accident, demonstrating high inventiveness and practicality.

The application provides a downhole high-strength smooth falling object fishing device and fishing method, wherein the fishing device comprises an extrusion clamping section and a thread forming section; the extrusion clamping section is provided with a clamping cavity, and the clamped section of the falling object can enter the extrusion clamping section along the clamping cavity; the extrusion clamping section can deform along the radial direction after being subjected to axial pressure to clamp the clamped section in the clamping cavity; the thread forming section is arranged at the upper end of the extrusion clamping section, the thread forming section is provided with a central hole, the central hole is communicated with the clamping cavity, and the inner wall of the thread forming section is provided with a thread forming part near one end of the clamping cavity; the thread forming part can form a thread on the clamped section entering the clamping cavity. The application adopts thread forming and uses the downward pressure generated by the drilling pressure to superimpose and transmit to the extrusion clamping section of the fishing device, so that the extrusion clamping section expands and deforms along the radial direction to clamp the falling object. The fishing lifting force provided by the combination of the two is increased from about 30 tons to 100-260 tons, and the fishing problem of the falling object below the rotary guide downhole main shaft is effectively solved.

This invention discloses a prefabricated conical steel support structure for shallow circular silo construction, comprising a conical shell panel assembly, a ring beam assembly, a radial beam, a lifting lug assembly, an adjustable support assembly, an anti-sway assembly, a connecting assembly, an auxiliary positioning assembly, and a sling connection assembly. It features a high degree of prefabrication, reducing on-site risks. Core components such as the conical shell panel and support frame are prefabricated in the factory, ensuring quality control. On-site assembly and hoisting are minimal, significantly reducing high-altitude work, lowering the risks of high formwork and falling objects. The hoisting stability is strong, enhancing safety. The lifting lug stiffening plates disperse hoisting stress, and the anti-sway assembly and guy ropes work together to control sway, ensuring a smooth hoisting process and preventing structural collisions and overloads. The assembly precision is high, and the structure is highly adaptable. Adjustable support components on the top of the shallow circular silo allow for adjustment during installation, ensuring the hoisted steel support structure accurately lands on the pre-set position on the silo top.

The application discloses a light high-strength overhead insulated cable and relates to the technical field of overhead insulated cables, which comprises an overhead insulated cable assembly, and a light high-strength assembly is arranged on the outer surface of the overhead insulated cable assembly; the light high-strength assembly comprises a plurality of first support frames, and first tripods are fixedly connected between the opposite outer surfaces of the plurality of first support frames; the light high-strength overhead insulated cable is characterized in that the first support frame, the second support frame, the first tripod, the second tripod and the third tripod in the light high-strength assembly all adopt a frame type hollow structure, the material consumption and the overall weight are reduced, the geometric non-deformability of the triangle is utilized to disperse the load, local stress concentration is avoided, the arch-shaped frame adopts an arc-shaped design, the impact of falling objects, the extrusion of strong winds and other external forces can be transmitted to the support system along the arc-shaped surface, and the impact resistance is further improved.

This utility model discloses an articulated dump truck anti-rollover and anti-falling-object cab, comprising a cage-like frame structure without A-pillars, welded together from a roof frame, a rear frame, a floor frame, door pillars, and two sets of side frames. The cage-like frame is covered with a skin assembly. The side frames include B-pillars and C-pillars connecting the roof frame and the floor frame, and several support beams located between the B-pillars and C-pillars. The advantages of this utility model compared to existing technologies are: it provides an articulated dump truck anti-rollover and anti-falling-object cab that ensures cab strength and reduces obstruction of vision.

The utility model discloses an underground mining anti-falling safety protection net, which comprises a fixed half ring, a limiting half ring, a locking assembly and an elastic assembly. A plurality of fixed half rings are symmetrically arranged in the inner cavity of a mine shaft, and a fixing assembly is arranged on the outer side of the fixed half ring. A plurality of limiting half rings are symmetrically arranged on the inner side of the fixed half ring. The locking assembly is arranged at the splicing position of the fixed half ring and the splicing position of the limiting half ring. The locking assembly comprises an insertion connecting part arranged at the top of the splicing position of the fixed half ring and the limiting half ring. A tensioning part is connected to the insertion connecting part. The elastic assembly is arranged on the opposite side of the fixed half ring and the limiting half ring. The utility model fixes the spliced fixed half ring and the spliced limiting half ring by using the locking assembly. The elastic assembly arranged on the opposite side of the fixed half ring and the limiting half ring is used to prevent objects from falling. The design can flexibly intercept the falling objects during the transportation of the mine shaft basket, avoid the direct falling of the objects, and affect the safety of the staff at the bottom of the mine shaft.

The highway bridge tunnel high-altitude detection work platform with the anti-falling protection function comprises a base and a top plate, an extension assembly is arranged on the base, the extension assembly comprises a rack plate, a side plate and an extension plate, a motor is fixedly installed at the bottom end of the base, a motor shell is arranged on the periphery of the motor, and the rack plate is fixedly installed on the top plate. An output shaft of the motor extends into the base and is rotationally connected with the base through a bearing, and a gear is fixedly installed on the output shaft of the motor. Through the arrangement of the buffer assembly, under the cooperation of a damper with a plurality of springs, when an object falls from a high place and impacts the top plate, the damper and the springs can effectively buffer impact force, disperse and absorb energy of the falling object, and reduce impact force of falling of the object on the top plate, a working platform below the object and personnel; serious consequences such as top plate breakage, working platform damage or personnel injury caused by overlarge impact force are avoided, and the service life of the working platform is prolonged.