79results about How to "Safe and stable transportation" patented technology

An assembled packaging shelf for transporting the unit plates of a curtain wall is disclosed, which solves the problems of the waste of steel after the use of customized shelf, the low working efficiency of forklift and the like existing in the present shelf. The assembled packaging shelf for transporting the unit plates of a curtain wall comprises a bottom fixed seat, vertical columns assembled on the bottom fixed seat, adjusting cross beams, pull rods and a connecting bolt assembly, which is technically characterized in that: the bottom fixed seat is composed of a left bottom cross beam and a right bottom cross beam with bottom legs and connecting insertion cores, as well as the lower adjusting cross beam; the upper vertical column and the lower vertical column compose a split vertical column; insertion holes for hanging and connecting a support plate are distributed at the opposite sides of the upper vertical column and the lower vertical column along a longitudinal direction; the movable pull rod at the bottom end of the upper vertical column and the middle adjusting cross beam compose a middle fixed frame; and the top end of the upper vertical column is fixedly connected with the fixed roll rod and the upper adjusting cross beam to compose a top fixed frame. The assembled packaging shelf for transporting the unit plates of a curtain wall is reasonable in structural design, convenient in adjustment, wide in application range, fast and convenient in bearing and installation for the unit plates of curtain wall, increased in the working efficiency of forklift, steady and safe in transportation, easy in assembly and disassembly, as well as capable of being recovered and reused so as to save steel and decrease packaging cost.

The invention discloses a vehicle automatic driving method in a container dock area. The vehicle automatic driving method is characterized by including the following steps: judging whether a vehicle stays in a bridge crane area; if the vehicle stays in a bridge crane area, judging whether a lane line can be recognized, and adopting a mode I for automatic driving if the lane line can be recognized;if the lane line cannot be recognized, the vehicle giving an alarm; if the area where the vehicle stays is not the bridge crane area, judging whether satellite navigation information can be received,adopting a mode II for automatic driving if the satellite navigation information can be received; judging whether the vehicle can recognize the lane line if the satellite navigation information cannot be received, and adopting the mode I for automatic driving if the vehicle can recognize the lane line; if the satellite navigation information cannot be received and the lane line cannot be recognized, the vehicle giving an alarm. The invention also discloses an automatic driving system. On the basis of operating environments of a dock area, the automatic driving method can be dynamically selected in real time, and vehicle positioning is accurate.

The invention discloses a glass transporter. The glass transporter comprises baffles (6), a rotary shaft (7), a base (1), sliding wheels (2), a supporting frame (3) and vertical rods (5). The sliding wheels (2) are arranged on the lower surface of the base (1). The supporting frame (3) is arranged on the upper surface of the base (1). One end of each vertical rod (5) is fixedly connected with the supporting frame (3). The other end of each vertical rod (5) is fixedly connected with the base (1). The multiple vertical rods (5) are arranged at intervals. A gap used for containing glass is formed between any two vertical rods (5). The baffles (6) penetrate through the base (1). First convex teeth are arranged on the side faces of the baffles (6). Second convex teeth engaged with the first convex teeth are arranged on the side faces of the rotary shaft (7). The rotary shaft (7) is tapped into the base (1) and rotates to drive the baffles (6) to move in the vertical direction. By the adoption of the glass transporter, stable and safe glass transportation is achieved.

The invention relates to a safety alarming device applied in a monorail conveyor for a hillside orchard. The safety alarming device comprises a cardan joint (1), a pressure sensor (2), a photoelectric switch (3), a rail (4), a blocking metal circular plate (5), a supporting device (6), a trailer (7), a buzzer (8), a PLC (programmable logic controller) (9) and a traction compartment(10), wherein the traction compartment (10) and the trailer (7) are respectively arranged on the rail (4); the PLC (9) and the buzzer (8) are arranged on one side of the trailer (7); and the trailer (7) is connected to the rail (4) through the supporting device (6). According to the safety alarming device disclosed by the invention, the pressure sensor and the photoelectric switch are used for detecting whether the conveyor is overloaded or not, and whether the conveyor exceeds a safe inclination angle or not, so that the safe and smooth operation of the monorail conveyor for the hillside orchard can be effectively guaranteed.

The invention relates to a quick-opening gate type external pressure air-tightness test tank. According to the quick-opening gate type external pressure air-tightness test tank, a kettle type horizontal quick-opening gate structure is used, a supporting base is arranged on the lower portion of a kettle body, a moving kettle cover is arranged at one end of the kettle body, a kettle cover opening system with a hydraulic motor serving as the motive power is arranged on the moving kettle cover, and a kettle body working platform and a transfer railway are installed inside the kettle body. By the aid of the quick-opening gate structure, pressurization, pressure maintaining and pressure reducing of the kettle body and closing and opening of the kettle cover can be conducted frequently, and the quick-opening gate structure is an ideal device through which test pieces enter the kettle body repetitively. The hydraulic motor is used for substituting for an electrical device, a safety interlocking device and the like, so that the air-tightness test tank can be used in strict operating environments in which frequent opening is conducted and fire lighting is not allowed, the device operating space is reduced, and the economical efficiency and the safety of the device are improved. By the aid of the quick-opening gate type external pressure air-tightness test tank, air-tightness test tanks are used widely.

The invention relates to an intelligent measuring system and method for transport volume of ore pulp pipes. The intelligent measuring system for the transport volume of the ore pulp pipes comprises a ore pulp pipe (1), a positive displacement piston diaphragm pump (2), a concentration measuring apparatus (3), a belt conveyer scale (4), a PLC (programmable logic control) system (5), an SCADA (supervisory control and data acquisition) control system (6), an integrative management and control system (7), an intelligent measuring system (8) and a pipe pulp delivering and measuring system displaying interface (9). The intelligent measuring system collects the data of ore pulp concentration and ore pulp volume through the positive displacement piston diaphragm pump, the concentration measuring apparatus and the PLC system, and obtains the volume and quality of iron ore concentrate pulp in one section of the pipe, the quality of iron ore concentrate in the whole pipe and the quality of production water in the whole pipe according to a computational formula, therefore, all parameters for transportation in the whole pipe are monitored precisely.

The invention relates to the technical field of logistics carrying, in particular to an intelligent logistics oriented robot forklift which comprises a forklift body, a lifting module and a control device. The forklift body comprises a forklift head, a supporting assembly, a power driving device and a navigation device; the lifting module comprises a jacking device, a pallet fork assembly and a weighing device; the pallet fork assembly is arranged above the supporting assembly; the jacking device is arranged between the supporting assembly and the pallet fork assembly and used for driving the pallet fork assembly to ascend and descend; and the weighing device is arranged on the pallet fork assembly and used for weighing objects on the pallet fork assembly. According to the robot forklift provided by the invention, the lifting module adopts a geometric center design for lifting and bearing, an eccentric structure does not exist, and stable transportation of the robot forklift can be ensured without arranging a large-size counter weight so as to adapt to logistics transfer in a narrow channel; and the weighing device is arranged at the pallet fork assembly, so that the weight of the inserted and taken objects can be monitored in real time while the objects are inserted and taken, and weight statistics is carried out.

The invention discloses a warehouse logistic handling device. Sliding rails are fixed to a backboard and mounted in sliding rail baffles, and the sliding rail baffles are fixed to a mounting board. Baffles are fixed to the end, away from the sliding rail baffles, of the mounting board. Sliding block sliding boards are fixed between the two baffles and are sleeved with sliding blocks, and the sliding blocks and fork mounting boards are fixed. Nut blocks are fixed to the fork mounting boards and are mounted on lead screws, and lead screw mounting seats are mounted at the two ends of each lead screw in an inserted manner. First synchronous belt wheels are fixed to the two lead screws, and the two first synchronous belt wheels are connected through a first belt. A first connecting gear is fixed to one end of one lead screw and is engaged with a second connecting gear, and the second connecting gear is fixed to a rotary shaft. The rotary shaft is mounted on a rotary shaft mounting seat in an inserted manner, the rotary shaft mounting seat is fixed to the backboard, and a handle is fixed to the end, away from the second connecting gear, of the rotary shaft. The warehouse logistic handling device has the advantage that products of different sizes or trays of different sizes can be transported safely and stably.

The invention discloses an adjustable stable transportation frame facilitating transportation of ring pieces. The adjustable stable transportation frame is provided with a fixed clamping clamp, loading and unloading operation of the ring pieces is completed through manual remote control, the burden of workers is reduced, injuries to the workers are avoided, damage to cargoes is prevented, and thecargo loading and unloading efficiency is improved; the cargoes can be moved into a transportation frame by loading and unloading at the tail end of the transportation frame through a transmission belt, the cargo placing, loading and unloading efficiency is improved, the fixing clamping clamp and a clamping base achieve firm fixing and enhanced fixing of the ring pieces, impact borne by the cargosin the transportation process can be reduced through arranged buffer springs and arranged base supporting springs, and the ring pieces are prevented from being damaged; and a base sliding block, a base supporting spring and a bottom supporting frame can be adjusted, so that the clamping base can load the different ring pieces, and practicability and applicability are improved; and the adjustableand stable transportation frame has the beneficial effects of being high in practicability and applicability, facilitating loading and unloading of the ring pieces, and being high in efficiency, smallin worker burden, safe and stable in the ring piece transportation process and the like.

The invention relates to a logistics turnover device comprising an AGV in a cuboid shape. The AGV comprises a vehicle frame and a vehicle body arranged above the vehicle frame, and walking wheel devices are arranged at the bottom of the vehicle frame. The logistics turnover device also includes a plurality of shock absorption type supporting devices installed on the upper surface of the vehicle body, the shock absorption type supporting devices are the same in structure, and the shock absorption type supporting devices are distributed on the upper surface of the vehicle body in a rectangular array mode. The invention further discloses a machining method of the logistics turnover device. The logistics turnover device has the following beneficial effects that the damping coefficient is adjustable, and materials transported on the upper supporting plate can be effectively, safely and stably transported through shock absorption and buffering; the transportation requirements of components of some precise instruments and equipment are met; and a problem that the internal structure of an object is mechanically damaged when the transferred object is subjected to instantaneous overlarge impact force at the moment of lifting the object is solved. The device is simple and compact in structure and has a good actual use effect.

The invention relates to a photovoltaic module package which is specifically used for packaging and transporting for solar energy photovoltaic modules, and belongs to the technical field of the photovoltaic modules. The photovoltaic module package comprises a fixed part, a bottom paper plate, a bottom base plate, frames and a tray. The tray is paved with the bottom base plate, the bottom base plate is paved with the bottom paper plate, one group of frame is respectively connected on two sides of the tray, and the fixed part is installed at the upper end of a photovoltaic module. The photovoltaic module package has the advantages that the structure is simple, compact and reasonable, the requirement of packing quantity of different modules can be met, the installation and the usage are rapid and convenient, the transportation is safe and stable, and the cost is low.

The invention discloses an improved mechanical hand. The improved mechanical hand is characterized in that a hand part comprises a palm and knuckles; the knuckles include the upper knuckles and the lower knuckles; a transmission mechanism, the palm, the upper knuckles and the lower knuckles are sequentially connected; a palm limiting sliding rail is arranged in the palm; the upper knuckles are installed in the palm limiting sliding rail; a knuckle limiting sliding rail is arranged in each upper knuckle; the lower knuckles are installed in the knuckle limiting sliding rails; each lower knuckle comprises a lower knuckle upper half part and a lower knuckle lower half part, wherein a linking part is arranged between the lower knuckle lower half part and the lower knuckle upper half part and is used for inwards bending the lower knuckle lower half part; and an electromagnetic suction cup is arranged on the lower side of the palm. The improved mechanical hand has the beneficial effects that clamping and electromagnetic attraction can be conducted by the mechanical hand at the same time, mechanical hand fingers can be retracted inside when objects cannot be clamped, iron objects are transferred through electromagnetic attraction, and the objects can be transported more safely and stably and more conveniently.

The invention discloses a rollover prevention device for railway long steel rail transportation. The rollover prevention device comprises a fixed base, two pairs of bearing seats are arranged in parallel on the fixed base, two foot type plates are arranged between each pairs of the bearing seats, and a rotation axis is arranged on the outer side of each foot type plate, the rotation axis is in rotary connection with the corresponding bearing seat; each pair of foot type plates are fixedly connected through arranging a connection shaft at the lower end portions of the foot type plates, and a coverplate and a support plate are arranged in parallel on the upper end portions of each pair of foot type plates; a first rolling shaft which is arranged in a first roller in a sleeved mode is perpendicularly arranged between the coverplate and the support plate, a base side plate which is fixedly connected with the fixed base is perpendicularly arranged between each pair of the foot type plates, and a U-shaped groove is formed in each base side plate from top to down, a second rolling shaft which is located at the upper end of the connection shaft is arranged between the U-shaped grooves of the two base side plates, and the second rolling shaft is arranged on a second roller in a sleeved mode; a spring seat which is located at the lower end of the connection shaft is arranged between the two base side plates, a spring is arranged between the spring seat and the fixed base. According to the rollover prevention device for railway long steel rail transportation, safety and reliability of the rail transportation can be guaranteed, moreover, transportation efficiency can be ensured.

The invention discloses a cover jacket used in a motor rotor coating device of a new energy automobile. The cover jacket comprises a left cover jacket and a right cover jacket, wherein the structuresof the left cover jacket and the right cover jacket are the same; the left cover jacket comprises a round rod and a sleeve; one end of the sleeve is provided with a mounting hole for inserting one endof the round rod; the other end of the sleeve is provided with an insertion hole for inserting a rotating shaft of a motor rotor; after the round rod is inserted into the mounting hole, the round rodand the sleeve are fixedly connected through a plurality of screws; the apertures of the insertion holes in the left cover jacket and the right cover jacket are matched with the diameter of the rotating shaft of the motor rotor; and the end, which is not inserted into the mounting hole, of the round rod is fixedly connected with a baffle plate. According to the cover jacket used in the motor rotor coating device of the new energy automobile, in an epoxy powder electrostatic adsorption process of the motor rotor, a protection effect on the rotating shaft of the motor rotor can be achieved to prevent epoxy powder from being stuck to the end parts of the rotating shaft, and an effect of safely and steadily transporting the motor rotor can be also achieved. The cover jacket is long in servicelife and convenient to clean.

The invention discloses a conveying device used for sheet glass production. The conveying device used comprises a conveying seat, a telescopic support plate and a locating plate. The telescopic support plate is fixed in the conveying seat. The locating plate is fixed to the upper end of the telescopic support plate. The conveying seat comprises a conveying plate, locating separation plates, protective frame and an opening-closing frame. The conveying plate is provided with the locating separation plates. The locating separation plates are located on the two sides of the telescopic support plate. The protective frame is fixedly connected with the front side and the rear end of the conveying plate. The opening-closing frame is arranged on the left side and the right side of the conveying plate. The telescopic support plate comprises a first fixed plate, a second fixed plate and a movable plate. The locating plate is provided with locating grooves. The conveying device is high in practicability. Not only is the stability of the conveying device during conveying work improved, but also the fixing effect is ensured. The conveying seat is arranged, so that sheet glass is conveyed through the conveying seat during the conveying process. Therefore, the step of manual conveying is reduced, and the risk of personal injury is reduced. The whole process is convenient to operate, and the stability of the conveying device for the sheet glass is improved.

A large-scale engineer equipment transport vehicle includes a carrier plate; the left side of the carrier plate is rotatably connected with an inclined plate through a connecting block, the top of theinclined plate is rotatably connected with a rolling roller, the front face of the inclined plate is rotatably connected with a first roller through a first pillar, a second roller is rotatably connected to the bottom of the carrier plate, a left side of that front side of the carrier plate is fixedly connected with a second pillar, a third roller is rotatably connected to the top of the second pillar, the bottom of the carrier plate is fixedly connected with a motor box, the inner wall of the motor box is fixedly connected with the motor, an output shaft of the motor is fixedly connected with a take-up wheel, and a surface of the take-up wheel is connected with a cable; and one end of the cable sequentially passes through the second roller, the third roller and the first roller. The invention relates to the technical field of equipment transportation. The large-scale engineering equipment transport vehicle makes the engineering equipment convenient to load and unload onto the transport vehicle, and reduces the labor intensity of the transport vehicle loading and unloading engineering equipment.

A conveyor system for transporting cylindrical objects is disclosed including an endless conveyor arranged in a transport path, a drive for feeding the endless conveyor, guide rails for restricting lateral movement of cylindrical objects transported on the endless conveyor, an elevation transport section adapted to transport the cylindrical objects from a first height to a second height and including the endless conveyor having a base surface extending along the transport path, the endless conveyor including vertical protrusions extending outwardly from the base surface of the endless conveyor and including a front wall with an inclined portion sloping towards the base surface, such that a cylindrical object transported on the elevation transport section can rest on the inclined portion under a contact force directed towards the base surface by gravity

The invention discloses a dangerous solid waste transportation and treatment device, which comprises a main body, an outer dovetail seat, an outer push rod motor, an inner dovetail seat, an inner push rod motor, an outer sliding frame, an inner sliding frame, an unfolding part and an adjusting part. In the reverse moving process of the outer sliding frame and the inner sliding frame, all supporting cylinders and supporting rods can make reverse contact and slide, then a conveying belt can be continuously supported, and therefore conveying safety and stability can be guaranteed, and in the reverse moving process of the outer sliding frame and the inner sliding frame, a scraper blade can scrape away granular waste remaining on the conveying belt, a cleaning roller can further clean the upper end face of the conveying belt, and therefore it can be guaranteed that the conveying belt is sufficiently clean during rolling, damage to the conveying belt can be prevented, the position of a fork cylinder can be reversely adjusted after a transmission motor is powered on, therefore, stability and safety of transportation are indirectly guaranteed.

The invention discloses an electromechanical device transporting box with a damping function. The electromechanical device transporting box comprises a base. A first groove, a second groove and a third groove are formed in the base and are sequentially arranged from top to bottom. Solenoids are fixedly installed on the top and the bottom of the first groove correspondingly. A plurality of supporting columns are fixedly arranged in the second groove. Springs are arranged on the supporting columns in a sleeving manner. The top ends of a plurality of springs are fixedly connected with the top ofthe second groove. According to the electromechanical device transporting box, by arranging the supporting columns and the springs, the electromechanical device transporting box with the damping function has a good damping ability, by installing the two solenoids, the damping ability of the electromechanical device transporting box with the damping function is enhanced, a soft pad is fixedly arranged in a storing box, and therefore an electromechanical device is safe and stable in the transporting process.

The invention discloses a monorail crane self-balancing compensation heavy hydraulic lifting beam. The monorail crane self-balancing compensation heavy hydraulic lifting beam comprises an arched beam(1), a beam (2), a longitudinal beam (3) and beam and longitudinal beam connecting pins (5), wherein the arched beam (1) is used as the main bearing body of the lifting beam. Each beam and longitudinal beam connecting pin (5) is a pin with both a cylindrical surface and a spherical surface, wherein the cylindrical surface is connected with the beam (2) in the axial direction, the spherical surfaceis connected with the longitudinal beam (3) in the normal direction, and self-balancing compensation connection is formed. According to the monorail crane self-balancing compensation heavy hydrauliclifting beam, the longitudinal beam (3) is adjusted in any direction along the spherical surface of each beam and longitudinal beam connecting pin (5) under the action of gravity of load, and guarantees surface contact at any time, the longitudinal beam carries out self adjustment fix the load at the position where the gravity center of the load is more stable, it is avoided that the load swings because of unstable gravity center, and self-balancing compensation of the lifting beam itself is achieved.

The invention discloses a manufacturing method of a sound-reducing plastic nitrocotton integrated nail. The manufacturing method comprises the following steps that a small particle single-base propellant is prepared by using nitrocotton, aluminum powder, potassium nitrate and a pyrotechnic agent; the prepared small particle single-base propellant is made into a cylindrical tablet-like single-basepropellant with the height of 4.5-5 mm and the diameter of 6-6.5 mm through a tablet making device, and a moisture-proof and environment-friendly paint is sprayed onto the surface of the tablet-like single-base propellant; an embossed nail body and a plastic shell are processed into one body to obtain the plastic integrated nail; and the prepared tablet-like single-base propellant is installed inside the manufactured plastic integrated nail. The manufacturing method greatly reduces various pollutions, and can generate power only by burning. Under the same power level, noise is smaller than that of a conventional nail shooting pill, the abrasion of a used tool is greatly reduced, the operation safety is high, the recoil force is greatly reduced, and the single-base propellant has few ingredients and low price, a technology of rubbing the tip of the nail is adopted, the penetrating power is high, relatively firm is achieved after the nail is hit into a wall, and the sound-reducing plastic nitrocotton integrated nail is not prone to being affected with damp after being stored for a long term in a humid environment.

The invention relates to a flexible freight bag, in particular to a reinforcing rib flexible freight bag. The reinforcing rib flexible freight bag comprises a flexible freight bag, and also comprises reinforcing ribs, wherein the reinforcing ribs are arranged on the bottom of the flexible freight bag in a horizontally-vertically staggering manner. The reinforcing rib flexible freight bag has the advantages and beneficial effects: the reinforcing ribs are arranged on the bottom of the flexible freight bag, so that the reinforcing rib flexible freight bag is firmer and more durable and is more stable and safer in the transportation process, the transportation quality of cargos can be guaranteed, the service life of the flexible freight bag is prolonged, and the cost is reduced.

The invention discloses a temporary dragging and dropping cart for production and transportation of light partition plates. The temporary dragging and dropping cart for production and transportation of light partition plates comprises a bottom plate, wherein universal wheels are separately mounted at four corners of the bottom end of the bottom plate in a rolling manner; a supporting plate is welded to the middle of the upper end of the bottom plate; abutting and protecting racks are uniformly welded to the upper end of the bottom plate; a placement groove is formed between each two adjacent abutting and protecting racks; a rotating pin is rotatably mounted on the top of the supporting plate and is rotatably connected with a pull ring by an elastic rope; sliding grooves are separately formed in two ends of the supporting plate; a sliding block is mounted in each sliding groove and is matched with the sliding groove; a sleeve is welded to each sliding block; a limiting spring is welded to each sleeve; one end, which is away from the corresponding sleeve, of each limiting spring is elastically connected with one end of a T-shaped limiting plate through a circular connecting block; and loading trough plates are arranged on the bottom plate and are positioned at the outer ends of the placement grooves. Rapid loading and unloading of the light partition plates can be realized, meanwhile, rapid short-distance transportation can be realized, the labor intensity is reduced, and the carrying efficiency is improved.

The invention discloses a fixture for safe and stable pipe transportation. The fixture comprises a transportation rail and an emergency braking device, wherein transportation devices are arranged under the transportation rail; the transportation rail and the transportation devices are fixedly connected; lifting devices are mounted under the transportation devices; the transportation devices and the lifting devices are fixedly connected through iron rods; the lifting devices comprise through holes, lifting rods and lifting control devices; the lifting devices are fixedly connected with fixture connecting rods; the fixture connecting rods and fixture main bodies are fixedly connected through fixed buttons; telescopic devices are mounted at the left half parts of the fixture main bodies; telescopic control devices are arranged on the outer surfaces of the telescopic devices; buckle devices are arranged on the right sides of the telescopic devices; and buckle connectors are mounted below the buckle devices. According to the fixture for safe and stable pipe transportation, stable and safe transportation can be achieved through a series of structures, the working danger degree is small, and the fixture has practical application value.

The invention discloses a negative-pressure forklift for an ice house. The forklift comprises a vehicle body, wherein the vehicle body comprises a chassis, and walking wheels and a counterweight wheelmechanism are sequentially arranged at the lower end of the chassis from left to right; two vertically arranged supports are symmetrically arranged on the side wall, located on the right side, of thechassis; the counterweight wheel mechanism comprises two rotating shafts rotationally connected to the supports, wherein a hub is fixedly connected between the two rotating shafts, and the side wallof the outer side of the hub is fixedly sleeved with a tire; the hub is of a hollow structure, and the hub is filled with an aqueous solution; a water pump is arranged in the hub, and the two sides ofthe water pump are correspondingly connected with a water inlet pipe and a water outlet pipe; and the inner side wall of the hub is provided with a spiral pipe, wherein one end of the spiral pipe isfixedly connected with a water outlet pipe, and the other end of the spiral pipe is inserted into the hub. According to the negative-pressure forklift for the ice house, the negative-pressure forkliftfor the ice house can be effectively prevented from slipping when traveling, thereby ensuring that the articles are safely and stably conveyed.

The invention discloses a bottle body fixing device of a distribution vehicle. The bottle body fixing device comprises a fixed support and a movable support. The fixed support and the movable support are both arranged in the distribution vehicle, the fixed support is fixedly connected with the distribution vehicle, and the movable support is hinged to the distribution vehicle; the movable bracket moves between a minimum angle position and a maximum angle position, and when the movable bracket moves to the minimum angle position, the fixed bracket is opened, so that an external steel cylinder can be put in or taken out; and when the movable bracket moves to the maximum angle position, the fixed bracket and the movable bracket enclose to form a space for tightly holding an external steel cylinder. The device is used for stably holding the steel cylinder in the transportation process, and has the beneficial effects of simplicity and convenience in operation, convenience in distribution, safety in transportation and convenience in wide popularization.