285 results about "Falling Objects" patented technology

The invention discloses a prefabricated conical shell steel supporting structure capable of being hoisted for squat silo construction. The prefabricated conical shell steel supporting structure comprises a conical shell wall plate assembly, a ring beam assembly, a radial beam, a lifting lug assembly, an adjustable supporting assembly, an anti-swing assembly, a connecting assembly, an auxiliary positioning assembly and a sling connecting assembly. Core components such as the conical shell wall plate and the supporting framework are all prefabricated in a factory, the quality is controllable, splicing and hoisting are only needed on site, high-altitude erecting operation is greatly reduced, the high formwork erecting risk and the hidden danger of falling objects from high altitudes are reduced, hoisting stability is high, safety is improved, hoisting stress is dispersed through the lifting lug stiffening plates, and the hoisting efficiency is improved. The anti-swing assembly and the cable wind rope cooperatively control swing, it is ensured that the overall hoisting process is stable, structural collision and stress overload are avoided, the splicing precision is high, the adaptability is high, adjustability during installation is achieved through the adjustable supporting assembly arranged on the squat silo top, and it is ensured that the hoisted steel supporting structure can accurately fall on the preset position of the squat silo top.

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 relates to the technical field of industrial safety monitoring, in particular to a fallen object accurate identification FOD calculation method based on a fixed tower and application of the fallen object accurate identification FOD calculation method. Comprising the following steps: synchronously acquiring multi-source heterogeneous sensing data; carrying out multi-modal data preprocessing and feature extraction; performing cross-modal feature fusion and representation construction; modeling and reasoning a time-space diagram neural network; and performing multi-dimensional threat quantification and decision output. According to the design of the invention, multi-modal sensor groups are deployed at the tower bottom, the tower middle and the tower top of a fixed tower in a layered manner, and a high-definition multispectral camera, a high-density laser radar and a distributed acoustic sensor are integrated, so that 7 * 24-hour full-automatic data acquisition is realized; according to the design, the time and environment limitation of manual inspection is eliminated, and the complex weather detection capability is improved by 80%; meanwhile, the sensor synchronously triggers the mechanism and the grading detection process, the single-frame data processing delay is less than or equal to 50ms, and the real-time monitoring requirement of an aircraft take-off and landing high-frequency scene is met.

The invention relates to the technical field of iron tower construction safety control, in particular to a range-adjustable offshore high-rise iron tower anti-falling device which comprises a construction platform arranged on the sea, cement piles are arranged on the sea around the construction platform, and an iron tower body is arranged on the construction platform. The anti-falling iron tower is characterized in that an anti-falling device is arranged on the iron tower body and used for conducting three-dimensional protection on aerial work personnel and falling objects in the construction process, and the anti-falling device comprises a protective net body, an adjusting mechanism, a climbing mechanism and a synchronous control system. Multi-winch collaborative operation, real-time monitoring adjustment and self-adaptive protection are achieved, the safety protection problem of offshore aerial work is effectively solved, and construction safety and operation efficiency are remarkably 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 utility model discloses a high-altitude building construction hoisting protection assembly in the technical field of building construction, which comprises two fixed frames, the two fixed frames are arranged in parallel relatively, four corners of the two fixed frames close to each other are fixedly connected with fixed plates, the side walls of the plurality of fixed plates, which are matched in position, are jointly and fixedly connected with a reinforcing column, and the reinforcing column is fixedly connected with the reinforcing column. The outer walls of the two fixing plates and the outer wall of the fixing frame are jointly and fixedly connected with a protective net, and movable columns are arranged on the side walls of the ends, matched in position, of the multiple fixing plates. Through the combined design of the fixing frame, the fixing plate, the reinforcing columns and the protective net, the whole protective assembly has extremely high stability, various impact forces in the hoisting process can be effectively resisted, meanwhile, the situation that objects fall from high altitudes due to unstable bundling or center-of-gravity shift when a steel pipe of a frame or other building equipment is hoisted can be avoided, and the construction safety is improved. And safety accidents caused by falling objects from high altitudes are avoided.

The utility model relates to the technical field of construction hanging baskets, in particular to a novel hanging basket type operation platform which comprises a rectangular installation frame, connecting pieces are symmetrically installed on the top of the rectangular installation frame, limiting sliding rods are symmetrically connected to the inner side wall of the rectangular installation frame, and adjusting frames are connected to the limiting sliding rods in a sliding mode. A working hanging basket platform is fixedly mounted on the outer side wall of the adjusting frame, a lifting assembly used for driving the adjusting frame to move is arranged on the rectangular mounting frame, a rotatable falling object collecting assembly used for collecting falling objects is connected to the working hanging basket platform, and the lifting assembly comprises a lifting motor. The lifting assembly comprises a lifting motor, the lifting motor is fixedly connected to the center position of the top of the rectangular mounting frame, the lifting assembly comprises a lifting motor, and the lifting motor is fixedly connected to the center position of the top of the rectangular mounting frame. And meanwhile, tools accidentally falling off by workers can be collected, so that the safety is improved.

The embodiment of the present application discloses a hanging basket with safety anti-falling net, which comprises a hanging basket body, an anti-falling net and a connecting chain rope, the lower end of the anti-falling net is rotatably connected with the lower end of the outer periphery of the hanging basket body, the upper end of the anti-falling net is connected with the upper end of the outer periphery of the hanging basket body through the connecting chain rope, and the connecting chain rope is used for winding up or unwinding the anti-falling net. The hanging basket with safety anti-falling net has the effect of preventing high-altitude falling objects by arranging the anti-falling net around the hanging basket body, and the anti-falling net and the hanging basket body are connected through the connecting chain rope, so that the anti-falling net can be wound up or unwound.

The application relates to the technical field of elevator shaft protection structures, improves the inconvenient installation and removal of the prior art, and discloses an elevator shaft opening protection structure which comprises a limiting rod, a seat body and two sliding rods, the length of the limiting rod is greater than the width of an elevator door opening, the seat body is abutted against the inner wall of an elevator shaft opening from the inner side of the elevator shaft opening, one end of the sliding rod is slidingly connected to the seat body, the other end is upwardly inclined and abutted against the inner wall of the side of the elevator shaft opening which is away from the seat body, the seat body is provided with a first driving assembly for controlling the mutual approach or separation of the two sliding rods, a blocking net assembly for blocking falling objects is arranged between the two sliding rods, a plurality of blocking rods are rotationally connected to one side of the two sliding rods in the length direction, a second driving assembly is arranged in the sliding rod, and the seat body is provided with a linkage member which enables the second driving assembly to simultaneously control the movement of the blocking rods after the sliding rod slides. The application can provide a convenient-to-install and remove elevator shaft protection structure, so as to increase construction efficiency and increase the service life of the structure.

The utility model relates to a cigarette package unloading technology field especially relates to a set of cigarette package unloading protection device. Including: support part and first protection part, the support part is arranged at the both sides of truck, and the truck is loaded with the cigarette package to be unloaded, first protection part is arranged at the both sides of truck, and one end of first protection part is connected with one side of support part, and the other end is connected with the side of truck, and first protection part forms at least two layers of protection structure for intercepting falling objects in the vertical direction of both sides of truck. The device forms two layers of protection structure for intercepting falling objects at the both sides of truck, forms double -deck protection at the both sides of truck, and the cigarette package on the truck and the people and things near the truck are all protected, and the operation risk is reduced.

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.

A system for detecting a falling object on a table includes a camera unit configured to obtain at least one image of a surface of the table, and a server configured to detect, from the at least one image, a first state in which an object is on the surface of a table or a second state in which no object is on the surface of the table, obtain information, when the first state is detected, on a first time during which the first state continues, detect that a falling object is on the surface of the table when the first time is more than a first reference time, and detect that no falling object is on the surface of the table when the first time is the first reference time or less.

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 protection structure for preventing an object from falling before construction of a building flue. The protection structure comprises a vertical pipe, a vertical pipe and a vertical pipe, wherein the vertical pipe is mounted at a flue hole; and an inclined object receiving net is mounted and fixed on the vertical pipe. The object receiving net in the inclined state receives large solidified concrete, large substances generated when the solidified concrete is impacted and scattered can also be received by the object receiving net, only small particles fall onto the plugging cover plate from the object receiving net, the situation that scattered and tumbled solidified concrete appears on a building body on the lower layer is avoided, and the construction efficiency is improved. The safety of field operation personnel during construction walking is improved, and the problem that the safety of the field operation personnel during construction walking is affected due to the fact that large solidified concrete falls off and rolls off at will in the prior art is solved.

The utility model provides a hanging basket limiting device protector which is characterized in that an inner groove of a steel plate groove is matched with a limiting device, the limiting device is installed at one end of the steel plate groove and extends in the length direction of the steel plate groove, a protection plate is matched with the section of the inner groove of the steel plate groove, and wing plates corresponding to a touch shaft of the limiting device are arranged on the two sides of the protection plate. The buffer spring is correspondingly sleeved on the touch shaft of the limiting device, and two ends of the buffer spring respectively abut against the protection plate and the limiting device, so that a buffer space is formed between the protection plate and the touch shaft of the limiting device; the protection plate is arranged, a touch shaft of the limiting device is protected through the protection plate and wing plates on the two sides, the situation that the touch shaft is subjected to misoperation after extending out of the hanging basket is avoided, and in the construction operation process of the hanging basket, bonding substances such as mortar falling from high altitude can be effectively prevented from triggering the limiting device and affecting work of the limiting device; and after being influenced by a falling object, the device can quickly reset and maintain the original functionality.

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.

The utility model discloses a lifting limiting device of a tower crane, which relates to the technical field of tower cranes and comprises a frame component and a lifting limiting component, and the lifting limiting component comprises a pulley, a pulley yoke, a weight limiter and an outer support wheel. An auxiliary supporting assembly is arranged in the area below the outer supporting wheel and the weight limiter. By arranging the auxiliary supporting assembly, when the hoisting capacity limiter breaks and loses efficacy, the concave supporting frame limits and supports the downward movement of the outer supporting wheel, so that the pulley yoke can be prevented from continuing to rotate downwards, the effect of temporarily supporting the pulley yoke is achieved, sudden falling of the pulley yoke is avoided, and meanwhile the hoisting capacity limiter is prevented from being damaged. When the tower crane is used, broken and invalid lifting limiters and fragments generated by breakage can be borne by the bearing net frame, potential safety hazards caused by high-altitude falling objects are avoided, in addition, the steel wire rope can be prevented from falling off from the groove of the pulley through the middle limiting wheel, and the use safety of the tower crane is effectively improved.

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.

The utility model relates to the technical field of constructional engineering, in particular to a novel protective shed for constructional engineering. The folding and storing device comprises a base, a supporting column and a ceiling, a folding and storing mechanism is assembled between the base and the supporting column, a height adjusting mechanism is assembled in the supporting column, and a falling object buffering mechanism is assembled between the base and the ceiling. By means of the structural design of the folding storage mechanism, the protective shed can be folded and unfolded through rotation of the supporting columns around the first rotating shafts, stability after unfolding is achieved through rotation of the reinforcing strips around the second rotating shafts, and convenient transportation of the protective shed for constructional engineering is achieved through folding storage; through the structural design of the height adjusting mechanism, the telescopic strip can slide in the supporting column by rotating a rotating disc, and the height can be adjusted according to actual needs; and through the structural design of the falling object buffering mechanism, the device achieves buffering through extrusion of the sliding table on the spring, and falling impact force can be effectively relieved.

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 utility model provides a novel underground coal mine sensor hanging device, which belongs to the technical field of hanging devices, aims to solve the problem that the hanging device is easy to deform or fracture when a rock plate or soil layer fragments fall off near the hanging device, and comprises a mounting support, and a positioning bracket is arranged below the mounting support in a sliding manner; the inner end of the positioning bracket is rotationally connected with a transmission fulcrum shaft; the lifting control mechanism is arranged between the transmission fulcrum shaft and the mounting support; the plurality of sensor bodies are uniformly distributed and hung at the lower end of the positioning bracket; the two protection supports are hinged to the outer sides of the left end face and the right end face of the positioning support respectively. The protection auxiliary mechanism is arranged between the mounting support and the protection bracket; the movable support is arranged on the outer side behind the positioning support in an up-down sliding mode. The device and the sensor body are effectively protected, the deformation or fracture phenomenon of the device caused when a falling object falls near the hanging device is relieved, and the service life of the device is prolonged.