162 results about "Weight-bearing ability" patented technology

The invention relates to the technical field of mortise and tenon joint structures, and discloses a novel mortise and tenon joint structure spliced in a standard component form, which comprises a plurality of groups of structural units, and the structural units are provided with splicing parts arranged based on a yin-yang logic sequence; the splicing part comprises at least one male tenon and at least one female tenon; the male tenon is of a protruding structure, and the female tenon is of a groove or hole structure. According to the mortise and tenon joint structure, one-female-one-male infinite circulation serves as the logic, multi-direction meshing is supported to achieve three-dimensional splicing, compatible splicing can be achieved through any materials and sizes, and through half-opening meshing, overall locking design and precise size and tolerance control, the mortise and tenon joint structure can be assembled in a one-female-one-male mode. The stability and the bearing capacity are greatly improved, the science popularization value of traditional woodworking skill display and engineering mechanics is achieved, the intelligence development performance is high, combination is diversified, the problem that a traditional splicing mode is single is solved, and small mortise and tenon joints and large intelligence are achieved.

This application discloses a door hinge for a micro-pressure oxygen chamber, belonging to the field of micro-pressure oxygen chamber technology. It includes a fixed component and a rotating component, which are rotatably connected. The rotating component is equipped with a bearing assembly, which drives the fixed component to rotate. This application reduces the coefficient of friction during the rotation of the rotating shaft by setting multiple bearings at the top and bottom of the pin and the rotating shaft. Furthermore, the cooperation of the retaining ring and bearings ensures the rotational accuracy of the rotating shaft, thereby ensuring easy opening and closing of the micro-pressure oxygen chamber door. Multiple bearings distribute the force, extending the hinge's service life. The addition of a reinforcing plate increases the hinge's load-bearing capacity, preventing wear and deformation even after prolonged use. This prevents the door from shifting, better ensuring the door's sealing effect and improving user comfort. The hinge is simple to install, has a reliable fixing method, high load-bearing capacity, and an aesthetically pleasing appearance.

The utility model relates to a reinforcing structure, belongs to the technical field of foundation reinforcing construction, and particularly relates to a reinforcing structure at a connecting joint of a building load-bearing wall and a raft foundation, which comprises the raft foundation, a plurality of first steel-concrete walls are fixedly mounted on the surface of the raft foundation, and a plurality of second steel-concrete walls are fixedly mounted on the surface of the raft foundation. A second steel-concrete wall body is fixedly installed on the peripheral wall of each first steel-concrete wall body, and a plurality of embedded steel bars are jointly and fixedly installed in the raft-shaped foundation and the inner bottom of the second steel-concrete wall body; the effects that the bearing capacity is enhanced, and a building is more stable are achieved, and the problems that an existing reinforcing structure is poor in bearing capacity, lack of steel bar supporting, not firm enough in connecting point, and insufficient in foundation bearing capacity and building safety coefficient are solved.

The utility model provides a kind of large-tonnage portal crane's supporting leg structure, including rigid supporting leg, flexible supporting leg and the main beam of connecting rigid supporting leg and flexible supporting leg;Rigid supporting leg includes two symmetrically arranged first supporting legs, the upper end of two first supporting legs is provided with first support seat, the downside middle part of first support seat is provided with inverted V-shaped gap, the inclined side surface of the both sides of inverted V-shaped gap is opposite to the side surface of first supporting leg and is located in the same plane;The lower end of two first supporting legs is connected by first ground beam, and the downside of first ground beam is provided with travelling trolley;Flexible supporting leg includes two symmetrically arranged second supporting legs, the top of two second supporting legs is provided with wedge-shaped gap correspondingly, two wedge-shaped gaps are docked, the lower end of two second supporting legs is connected by second ground beam, and the upper end of two second supporting legs is provided with second support seat.The large-tonnage portal crane's supporting leg structure is more stable, and the bearing capacity is stronger, not easy to deform, suitable for being applied to large-tonnage portal crane.

The utility model relates to a steering wheel, in particular to a steering wheel with high stability, which comprises two fixing plates, a transmission system and a steering system, the transmission system and the steering system are arranged on the two fixing plates, the transmission system comprises a walking driving motor and a wheel arranged on one side of the walking driving motor, and an input shaft is arranged on the walking driving motor. An output helical-tooth sun gear, an output helical-tooth planet gear and an output helical-tooth gear ring are sequentially arranged on the outer side of the input shaft, the output helical-tooth sun gear and the output helical-tooth planet gear are each provided with a helical-tooth structure, and the steering system comprises a steering connecting flange and a steering driving motor fixed to the lower end face of the steering connecting flange; the output end of the steering driving motor is connected with a straight tooth gear, and a slewing bearing outer ring and a slewing bearing inner ring are sequentially arranged at the end, away from the steering driving motor, of the straight tooth gear. According to the steering wheel, the two sides of the wheel are supported through the two fixing plates, so that the bearing capacity is higher, and the overall stability is improved.

The present application relates to the technical field of shipbuilding plant, especially to large tonnage ship, ship modularization, digital construction technology, in particular to a kind of support frame structure of shipyard load floor;Including the support rod of section being "T" shape, also include the connecting rod or connecting plate being arranged in the both sides of support rod.The above-mentioned "T" shape support rod and its accompanying connecting rod structure proposed in the present application are easy to mass production and have guaranteed quality, at the same time, I-beam or rail is used as support rod, which has stronger load capacity, and avoids the quality risk of thick plate welding, at the same time, the load floor proposed in the present application connects support member with floor reinforcement during manufacturing process, so that after concrete pouring and solidification, higher "integrity" and bearing capacity can be realized, and the problems of floor collapse and cracking caused by long-term load in later period are avoided.

The utility model provides a supporting device of a printing and dyeing machine arrangement frame, which relates to the technical field of arrangement frame supporting and comprises a bottom mechanism, the bottom mechanism comprises two sleeve frames, a connecting frame is arranged between the two sleeve frames, and a reinforcing frame is arranged on the sleeve frames. According to the pulley fixing device, the embedded frame is plugged into the sleeve frame, then a worker can place the pulley at the position, corresponding to the embedded frame, of the sleeve frame, and then the worker can fix the pulley by attaching the protective pad and rotating the mounting pin to enable the mounting pin to penetrate through the protective pad, the embedded frame and the sleeve frame in a threaded rotation mode. In this way, a worker can push the supporting frame more conveniently, one end of the supporting frame is welded to the sleeve frame, and the supporting frame and the sleeve frame are connected and reinforced through the reinforcing frame, so that the bearing capacity of the supporting frame in the actual use process is improved, and the practicability of the supporting frame in the actual use process is improved.

The utility model discloses a multi-degree-of-freedom mechanical arm mechanism and a mining lagging jack trolley, the multi-degree-of-freedom mechanical arm mechanism comprises a mechanical arm, rotating arms and a connecting arm, the rotating arms comprise a first rotating arm, a second rotating arm and a third rotating arm, the second rotating arm is connected with the first rotating arm, the second rotating arm is perpendicular to the first rotating arm, and the third rotating arm is connected with the connecting arm. One end of the connecting arm is connected with the second rotating arm, the other end of the connecting arm is connected with the third rotating arm, the third rotating arm is perpendicular to the second rotating arm, and the manipulator is connected with the third rotating arm; connecting rods used for being connected with a hanging basket are arranged on the two sides of the connecting arm, and through holes are formed in the connecting rods; and the manipulator is also provided with a through hole connected with the hanging basket. The mechanical arm mechanism has the effects that the use freedom degree of the mechanical arm mechanism is improved, and the bearing capacity of the end of the mechanical arm mechanism is optimized.

This utility model relates to the field of building engineering and discloses a load-bearing polyurethane floor panel, including a top panel and a bottom panel. A rigid polyurethane foam board is disposed between the top panel and the bottom panel, and a load-bearing mechanism is also disposed between the top panel and the bottom panel. The load-bearing mechanism includes a support plate, the upper surface of which is fixedly connected to the lower surface of the top panel, and the lower surface of which is fixedly connected to the upper surface of the bottom panel. A triangular groove is formed on the inner wall of the support plate, and a connecting strip is fixedly connected to one end of the support plate away from the middle of the top panel. A connecting component is disposed on the outside of the connecting strip. In this utility model, through the arrangement of the top panel, bottom panel, rigid polyurethane foam board, and load-bearing mechanism, the support plate is shaped to ensure that the rigid polyurethane foam board remains in an intact structure, and the support plate can maintain the stability of supporting the top panel through its remaining shape, thereby achieving the effect of protecting the integrity of the rigid polyurethane foam board and increasing the load-bearing capacity of the equipment.

The utility model discloses a hook structure, including the fixed plate of fixed on the wall surface, the fixed plate is equipped with the hook body on the side of wall surface's back, the fixed plate is equipped with the pasting layer on the side of wall surface's face, the length of the fixed plate along the direction of perpendicular ground is L, the hook body is used for hanging the heavy object, the hook body includes the connecting portion, the highest point of connecting portion and the distance of the bottom end of fixed plate's projection length in the direction of perpendicular ground is H, wherein 18%L <= H <= 50%L. The utility model has the advantages of can even distribution stress, strengthen the bearing capacity and improve the back glue adhesion stability.

The application belongs to the field of automobile parts, and provides a leg support structure and a four-way leg support, which comprises a leg support framework, an extension framework, a guide arm and a support arm, wherein: the extension framework is slidably arranged on the leg support framework to perform extension and contraction movement relative to the leg support framework; one end of the guide arm is movably connected to the leg support framework, and the other end is movably connected to the support arm. Compared with the prior art, the application has the advantages that through the guiding effect of the guide arm, the support arm is positively rotated to form stable support below the extension framework when the extension framework is extended in cooperation, effectively solving the problem of insufficient bearing capacity or easy deformation of the traditional leg support after being extended, significantly improving the structural stability and bearing safety of the leg support in the unfolded state; at the same time, the automatic hiding of the guide arm and the automatic contraction of the support arm are realized when the extension framework is retracted, depending on the structural design of the guide hole, greatly saving the storage space, and also improving the overall appearance.

The utility model relates to the technical field of building construction material storage, and discloses an assembly type steel bar stacking frame which comprises a supporting stand column, a first cross beam, a second cross beam and a bolt assembly, assembly assemblies are arranged between the supporting stand column and the first cross beam and between the supporting stand column and the second cross beam, and an installation assembly is arranged between the upper end and the lower end of the supporting stand column. According to the steel bar stacking device, through the installation assemblies and the reinforcing ribs, by means of the through holes in the installation bottom plate and the studs on the installation top plate, the corresponding number of supporting stand columns can be flexibly assembled according to the height of steel bars needing to be stacked. By arranging the reinforcing ribs of the clamping grooves and the column tops of the flat-top conical structures, the stress peak value of nodes among the supporting stand columns, the first cross beams and the second cross beams is reduced to be lower than the yield strength of materials, and therefore the stability and the bearing capacity of the whole steel bar pile frame structure are improved.

According to the radial bearing profile, the triangular cavities which are symmetrical left and right are formed in the top bearing structure, and the rectangular cavities are formed in the middles of the triangular cavities, so that the bearing capacity of the top is improved, and the rectangular cavities are formed in the middle bearing structure from top to bottom; therefore, the radial bearing capacity in the vertical direction is improved, and meanwhile the high load ratio is increased. In addition, the top bearing structure and the bottom bearing structure are respectively provided with bearing mounting grooves and optical axis mounting grooves which are uniformly distributed, so that the function expansibility is achieved.

The utility model discloses a linkage type supporting frame and an airing device applying the linkage type supporting frame, the linkage type supporting frame comprises a shear shank mechanism and a linkage mechanism movably connected with the shear shank mechanism, the shear shank mechanism comprises two main rods hinged in the middle, and the linkage mechanism comprises a linkage rod. The two ends of the linkage rod are movably connected with two main rods of the shear shank mechanism respectively. The linkage rod can change between the position not parallel to the main rod and the position parallel to the main rod. When the linkage rod is parallel to the main rod, the linkage rod is located on the outer side face of the main rod. The airing device comprises a pair of supporting frames and a transverse airing rod arranged at the tops of the supporting frames, and the supporting frames are the linkage type supporting frames. The linkage type support frame can be directly used as a main body structure of an X-shaped floor type drying rack, and a linkage mechanism is additionally arranged on the basis of a traditional shear shank structure, so that the overall bearing capacity can be effectively improved. The airing device adopts the linkage type supporting frame, and is convenient to use and high in bearing capacity.

The utility model discloses a flat folding cart which comprises a front supporting frame, a rear supporting frame, a left side folding frame, a right side folding frame and a bottom folding frame. The side folding frame comprises at least one X-shaped cross rod, the upper ends of the left and right sides of the X-shaped cross rod are longitudinally and slidably connected with the two supporting frames respectively, and the lower ends of the X-shaped cross rod are movably riveted with the lower ends of the two supporting frames respectively; and the two ends of the suspender positioned below the bottom folding frame are movably riveted with the two side folding frames respectively. The suspenders are arranged to be connected with the side folding frames to assist the bottom folding frame, so that the loading bearing capacity of the bottom folding frame is enhanced, and the use stability of the cart is improved; flat folding of the stroller is achieved through folding of the bottom folding frame and the side folding frames, occupied space is reduced when the stroller is not used, and the height of the whole stroller is not increased after the upper ends of the side folding frames longitudinally slide and are folded when the side folding frames are folded.

The utility model belongs to the technical field of cable bridges, and particularly relates to a novel mould pressing bridge which comprises a bridge body and a structure reinforcing assembly arranged on the surface of the bridge body, and the structure reinforcing assembly comprises a top cover arranged on the upper surface of the bridge body. The upper surface of the bridge main body is further symmetrically and fixedly connected with sliding rails, the top cover is slidably connected with the bridge main body through the sliding rails, the inner side surfaces of a bottom plate and side plates of the bridge main body are symmetrically and fixedly connected with a plurality of reinforcing ribs, and the inner side surfaces of the side plates of the bridge main body are further provided with corrugated grooves; the device is light in weight and high in bearing capacity, the bending strength is improved, the working temperature of the cable can be reduced, meanwhile, the side plates and the top cover are connected through the buckles, and the working efficiency is improved.

The utility model relates to the technical field of glass high-pressure laminating tools, in particular to a high-pressure shelf which comprises a shelf body and supporting pieces. The shelf body is provided with a plurality of supporting force arms which are arranged in parallel at intervals, and the supporting pieces are supported between every two adjacent supporting force arms in the vertical direction. According to the utility model, the supporting piece is supported between the two adjacent supporting force arms, so that the supporting force arms suspended on the shelf body cannot deform and droop due to the stress of the supporting force arms. Therefore, the stability and the bearing capacity of the whole structure are enhanced.

The utility model relates to the field of steward seats, in particular to an aerial steward seat protection device which comprises an L-shaped plate, a bearing assembly is arranged on the surface of the L-shaped plate, a limiting assembly is arranged on the surface of the L-shaped plate, the bearing assembly comprises a square plate arranged on the surface of the L-shaped plate, an extension plate is fixed to the surface of the bottom of the square plate, and a U-shaped block is fixed to the inner wall of the extension plate. A concave hole is formed in the surface of the U-shaped block, an L-shaped frame is fixed to the surface of the square plate, a seat plate is installed on the inner side of the L-shaped frame through a rotating shaft, a limiting block is fixed to the surface of the bottom of the seat plate, and a through hole is formed in the surface of the limiting block. The bearing assembly is provided with the square plate and the extension plate, the extension plate can support the seat plate, the bearing capacity of the seat plate is improved, the thickness of the seat plate is increased, the firmness of the bearing part is guaranteed, when an aerial crew uses the seat plate, the L-shaped plate and the extension plate can support the seat plate, and therefore the pressure received by the seat plate is dispersed, and the service life of the aerial crew is prolonged. The service life of the seat plate is prolonged.

A double-end saw mounting frame relates to the technical field of double-end saws and comprises a bottom plate and a top plate, the bottom plate and the top plate are fixedly connected together through a front plate and a rear plate, an abutting plate is arranged on the top plate, fixing components are arranged between the abutting plate and the top plate, and fixing components are arranged between the bottom plate and the front plate and between the bottom plate and the rear plate. The bottom plate, the top plate, the front plate, the rear plate and the abutting plate are made of thick steel plates, vibration is effectively restrained, and saw cutting precision is improved; the stability and the bearing capacity of the whole structure are remarkably enhanced through the fixing components, the side plates, the triangular supporting plates and other structures. The design of the chip leaking holes in the bottom plate realizes the lightweight design of the bottom plate.

The utility model discloses a folding cart with good bearing performance, which comprises a folding frame, a main connecting piece and an expansion connecting piece, the folding frame is a trailer rear opening type frame body, the front side and the rear side of the folding frame are respectively provided with a telescopic handle and a folding push handle, the folding frame comprises a bottom folding frame and a side folding frame arranged on the bottom folding frame, and the main connecting piece is connected with the main connecting piece. Wherein the bottom folding frame and the side folding frames are formed by hinging a plurality of crossed supporting rods, the adjacent crossed supporting rods on the bottom folding frame and the side folding frames are connected through main connecting pieces, and the crossed supporting rods at the upper ends of the side folding frames are connected through expansion connecting pieces. And key structural components such as the load-bearing hinge seat are adopted, so that the folding cart has high load-bearing capacity and can meet the transportation requirements of heavy-weight articles. According to the utility model, the expansion connecting piece, the adjusting function and the load-bearing strengthening design are added in the folding cart design, so that the multifunctionality, the load-bearing capacity and the stability of the product are obviously improved.

The invention relates to a pipeline supporting device. The pipeline supporting device comprises a base mechanism, a bearing mechanism, a buffering mechanism and an adjusting mechanism, the base mechanism comprises a mounting plate and a first fastener, the mounting plate is provided with a mounting hole, and the first fastener is used for being arranged in the mounting hole in a penetrating mode to be connected with a concrete foundation. The bearing mechanism is movably arranged on the side, away from the concrete foundation, of the mounting plate. One end of the buffering mechanism is connected with the mounting plate, the other end of the buffering mechanism is connected with the bearing mechanism, and the buffering mechanism is used for providing elastic supporting force for the bearing mechanism. One end of the adjusting mechanism is connected with the mounting plate, the other end of the adjusting mechanism is connected with the bearing mechanism, and the adjusting mechanism is used for adjusting the distance between the bearing mechanism and the base mechanism. The pipeline supporting device has the advantages of being high in bearing capacity and low in maintenance difficulty.

Parking garage (10) with at least two parking spaces (P1, P2), the parking garage (10) encompassing: a storage unit containing information regarding the respective static load-bearing capacity of at least two parking spaces (P1, P2); a device (11) for recording the weight of a vehicle (13); an analysis unit to determine whether at least one of the parking spaces (P1, P2) has a load-bearing capacity sufficient for the weight of the vehicle (13); and a issuing device (12) which is designed to issue an entry permit to the vehicle (13) if at least one of the parking spaces (P1, P2) has a load-bearing capacity sufficient for the weight of the vehicle (13), or to issue an entry prohibition to the vehicle (13) if none of the parking spaces (P1, P2) has a load-bearing capacity sufficient for the weight of the vehicle (13).

A reinforcing device for connecting adjacent struts of a steel structure factory building belongs to the technical field of steel structure factory buildings and is used for reinforcing and connecting the adjacent struts of the steel structure factory building. According to the technical scheme, an upper supporting seat and a lower supporting seat are fixed to the opposite side walls of two adjacent supporting columns respectively, the horizontal position of the upper supporting seat is higher than that of the lower supporting seat, a cable-stayed supporting rod is located between the opposite side walls of the two adjacent supporting columns, and the two ends of the cable-stayed supporting rod are connected with the upper supporting seat and the lower supporting seat respectively. The upper supporting seat, the lower supporting seat and the cable-stayed supporting rod are connected, the cable-stayed supporting rod and the two supporting columns form a triangular supporting and connecting structure, the triangular supporting and connecting structure has the advantages of being stable and free of deformation, and stability of the adjacent supporting columns can be guaranteed. The connecting device is simple in structure and convenient to use, the connecting stability between the supporting columns can be improved, the bearing capacity of the supporting columns is improved, and the supporting columns between the constructed steel structure factory buildings can also be connected in a reinforced mode.

The utility model provides a heavy load ring moving platform, including a first ring rail (10), a second ring rail (20), two first sliding blocks (30) of sliding installation in first ring rail (10), two second sliding blocks (40) of sliding installation in second ring rail (20), a heavy load platform (50), a driving wheel (60) is arranged in second ring rail (20), a driven wheel (70), a belt (80) of connecting driving wheel (60) with driven wheel (70) and a power unit (90) of driving driving wheel (70), the belt (80) is connected with two first sliding blocks (30), and two first sliding blocks (30) are correspondingly connected with two second sliding blocks (40). The utility model not only can realize the bilateral constant to and fro movement of the equipment of carrying, but also can increase the bearing capacity of the equipment of carrying, guarantees the stable operation of the equipment of carrying.

This utility model discloses a storage rack that is easy to disassemble and assemble, including a mounting base, side column frames, and a placement plate frame. The mounting base has four corner embedding grooves on its top surface, and an assembly groove in the center of the bottom surface of each embedding groove. An embedding plate is fixedly installed at the bottom end of the side column frames, and an assembly block is fixedly installed in the center of the bottom surface of the embedding plate. Several second locking holes are symmetrically formed on the inner wall of the side column frames. A second mounting cavity is formed inside the placement plate frame, and mounting blocks are symmetrically fixedly installed within the second mounting cavity. A second self-locking screw is installed between two mounting blocks, and a second assembly knob is fixedly installed at one end of the second self-locking screw. Beneficial effects: This utility model, with its mounting base, side column frames, and placement plate frame, allows users to quickly assemble and install the placement plate frame onto the side column frames. This not only makes assembly simpler and more convenient but also results in a more stable assembly effect, stronger load-bearing capacity, and greater practicality.

The utility model belongs to the technical field of electric lifting, and discloses a self-locking circuit which is applied to a lifting system and comprises a power supply, a driving motor, a switch control unit and a steering control circuit. The power supply and the steering control circuit are respectively connected with the driving motor through the switch control unit, the steering control circuit is grounded, and the switch control unit is used for controlling the steering and / or locking state of the driving motor. Therefore, the driving motor can be self-locked during power failure through the switch control unit, the risk that personnel below are injured and articles are damaged due to the fact that the lifting system loses power and a platform or a borne object suddenly descends is avoided, meanwhile, the lifting system can maintain the original position, the whole lifting system still maintains the bearing capacity, and the safety of the lifting system is improved. And the reliability and the safety of the whole lifting system are improved.

We offer a lightweight under protector that provides high load-bearing capacity. [Solution] An underprotector 1 made of an aluminum alloy extruded material comprising a rear flange 31, a collision surface flange 32, an upper web 41, a lower web 42, and an intermediate web 43, wherein at least one web is configured as a thickness-variable web with three regions having different thicknesses: a rear side region 51, a collision surface side region 52, and an intermediate region 53 between them, the rear side region 51 having the thickest thickness and the collision surface side region 52 having the thinnest thickness.

The utility model discloses a double load-bearing slide bar hand trailer with a height-unchanged frame, which comprises a frame and wheels, the frame comprises four upright posts, longitudinal folding frames positioned at the front and rear ends and hinged with the upright posts, and a plurality of pairs of bottom folding frames and transverse folding frames hinged with the upright posts, the frame is folded through folding of the longitudinal folding frame, the bottom folding frame and the transverse folding frame, the four faces of the frame can be folded, the size is small after the frame is folded, and the frame is convenient to carry when a user goes out and convenient to pack by a manufacturer; the frame further comprises a plurality of connecting columns located on the two sides, the adjacent transverse folding frames and the adjacent bottom folding frames are hinged to the connecting columns, the bearing capacity of the frame is improved, and stability is also improved. Fixing blocks are installed at the top ends of the stand columns and the connecting columns, movable sliding blocks are arranged on the stand columns and the connecting columns, the lower ends of the outer sides of the transverse folding frames and the longitudinal folding frames are hinged to the sliding blocks, the upper ends of the outer sides of the transverse folding frames and the longitudinal folding frames are hinged to the fixing blocks, and the sliding blocks longitudinally slide to drive the transverse folding frames and the longitudinal folding frames to be folded or unfolded.

The utility model discloses a carton structure for logistics transportation, and belongs to the technical field of logistics transportation. The box comprises a box body and a bearing part, a box cover is hinged to the top of the box body, the bearing part is provided with a bearing, a second vertical plate and a first vertical plate, through holes are formed in the two sides of the bearing, rotating shafts are arranged in the two through holes in a matched mode, and penetrating holes are formed in the bottom ends of the second vertical plate and the first vertical plate. The foldable bearing part is arranged, the bearing part is designed to be of a foldable structure, the bearing part is unfolded to reinforce the box body and improve the bearing capacity and stability of the box body in the using process, the bearing part is rotated to the bottom of the box body to be attached to the box bottom and matched with the bearing to support the box body in the idle process, and meanwhile occupied space is greatly reduced; and therefore, the bearing performance of the carton body is enhanced, the space utilization rate and use convenience of the carton are greatly improved, and the carton is more flexible and efficient in the transportation, storage and use processes.

The utility model discloses a strong load-bearing plastic carrier roller, which relates to the technical field of carrier rollers, and comprises a carrier roller shaft and two groups of semicircular carrier roller cylinders, and further comprises fixing blocks connected with the carrier roller cylinders; the fixing bolt is connected with the fixing block; one end of the supporting and reinforcing mechanism is connected with the carrier roller shaft, and the other end abuts against the carrier roller cylinder; one end of the fixing mechanism is connected with the carrier roller shaft I, and the other end is connected with the carrier roller cylinder. Through the design of the supporting and reinforcing mechanism and the fixing mechanism, the bearing capacity of the carrier roller is effectively enhanced, the carrier roller can meet the requirement for high-load material conveying, it is guaranteed that the carrier roller barrel cannot deviate or shake in the working process through the positioning and supporting effects of the fixing mechanism, the operation stability of the carrier roller is improved, and the service life of the carrier roller is prolonged. Due to the split design of the carrier roller cylinder, installation and maintenance are convenient, and the maintenance cost and time are reduced.