329 results about "Weight-bearing ability" patented technology

This application discloses a side-folding trailer with a first and second side frame connected by cross bars and a lifting rod at the folding center. The side frames have a base frame assembly connected to the lifting rod. Sliding sleeves on each side of the crossbar set connect to the side frames. The crossbar set includes first, second, fifth, and sixth crossbars with offset centers, minimizing the lifting rod's downward movement. This prevents the lifting rod from interfering with the misaligned and overlapping wheels when folded, optimizing storage. The lifting rod suspending the base frame significantly enhances its load-bearing capacity. The invention relates to outdoor activity equipment and aims to provide a trailer that does not increase in height when folded, ensuring efficient storage and improved load-bearing capacity through its unique design features.

The invention relates to the technical field of bridge construction, in particular to a large-span bent cap cast-in-place support system suitable for double cylindrical piers and a construction method. The large-span bent cap cast-in-place support system comprises a bracket supporting assembly and a bearing truss beam assembly which are arranged on a pier column; the bracket supporting assembly is anchored on the pier column to support the bearing truss beam assembly; the cast-in-place support system further comprises a displacement limiting assembly used for limiting displacement of the pier columns and the load-bearing truss beam assembly in the radial direction of the pier columns, and a load-bearing platform assembly is arranged above the load-bearing truss beam assembly. Through the bent cap cast-in-place support system, the bent cap cast-in-place support system has the advantages of being large in bearing capacity, large in spanning capacity, large in structural strength and rigidity, stable in structure, capable of reducing construction difficulty, low in construction cost, high in construction efficiency and capable of effectively shortening the construction period.

The invention relates to the technical field of robots, in particular to a hexapod robot based on heterogeneous bionic foot groups, which comprises a robot body, four advancing legs and two buffer legs, one marching leg, one buffering leg and one marching leg form a foot group in sequence, and the two foot groups are oppositely mounted on the left side and the right side of the robot body; the advancing leg and the buffering leg are respectively formed by movably connecting a plurality of sections of joint limbs; the marching leg comprises a tail end marching joint, the middle of the tail end marching joint is connected with a previous joint limb, and a track is installed on the tail end marching joint in a rolling mode around the limb and used for making contact with the ground; the buffer legs flexibly move between the machine body and the ground; the problem that an existing hexapod robot structure generally has difficulty in cooperative coexistence of terrain adaptive capacity, movement efficiency and load performance (namely bearing capacity) is solved.

The utility model relates to the technical field of energy storage integrated cabinets, and discloses a cabinet body suitable for an energy storage integrated cabinet, which comprises a main body, a plurality of groups of support frames are arranged in the main body, a bottom plate of the main body is provided with a wire inlet, each support frame comprises an L-shaped side frame, a positioning bearing frame and an edge folding support, and two ends of each L-shaped side frame are detachably connected with the side wall of the main body through bolts. The positioning bearing frames are arranged at the two ends of the bottom of the L-shaped side frame, the edge folding support is arranged in the center of the bottom of the L-shaped side frame, a wire inlet box is arranged above the wire inlet, and a cover plate is obliquely arranged at the top of the wire inlet box. According to the utility model, the battery cell module can be stably carried, the bearing capacity is strong, the incoming line condition can be improved, the space occupied by incoming lines in the cabinet is reduced, and the use effect of the cabinet body is effectively improved.

A modular rack system designed to be configurable for hauling various sizes and shapes of gear. The geometry of the rails in combination with corner supports allow components to be added or removed easily. Structural connection to the vehicle bed with or without a tonneau cover provides for offroad or heavy duty use. The rack is designed to fit within the aerodynamic profile of the vehicle to minimize its footprint when not in use. The lightweight construction, bracketry and vehicle connections allow the rack system to be removed from the vehicle without disassembly. When combined with a structural load carrying tonneau cover, gear can be supported by the cover aiding the load carrying capacity of the rack system. Height adjustment of the rack system provides clearance with the vehicle when carrying longer items.

The utility model belongs to the technical field of AGVs (Automatic Guided Vehicles), and relates to a lifting type heavy-load AGV capable of running stably, which comprises an AGV body, lifting plates which are arranged at four corners of the AGV body and are driven by a lifting mechanism to lift, four groups of steering wheels arranged at the bottom of the AGV body, and a navigation mechanism arranged on the AGV body, the AGV is characterized in that the two sets of steering wheels on each side of the AGV body are mounted on the AGV body through a first-stage balance mechanism, the first-stage balance mechanism comprises mounting groove frames, a rotary mounting frame and a first-stage balance rotating shaft, and the mounting groove frames with downward notches are fixedly mounted on the two sides of the bottom of the AGV body; a rotary mounting frame is rotationally mounted in the mounting groove frame through a first-stage balance rotating shaft, and steering wheels are symmetrically mounted at the front end and the rear end of the rotary mounting frame. The heavy-load AGV is scientific and reasonable in structural design, has the advantages of being simple in structure, stable in running, stable in loading, high in bearing capacity and easy to achieve, and is a heavy-load AGV with high innovativeness.

The invention relates to the technical field of railway catenary erection equipment, in particular to a forged bolt-free type dropper clamp and an adjustable integral dropper, one end is used for being matched with a dropper, the other end is used for being matched with a carrier cable or a contact line, the forged bolt-free type dropper clamp comprises two half clamps which are detachably connected, and each half clamp comprises a lifting hook and a clamping jaw. When the two half clamps are connected, the two lifting hooks are matched to form a connecting ring matched with a dropper, the two clamping jaws are matched to form a clamping jaw, the clamping jaw has a first form matched with a carrier cable and a second form matched with a contact line, and the two half clamps are symmetrically arranged when connected. The two half clamps comprise inserting blocks and inserting grooves, the inserting blocks are matched with the inserting grooves, when the two half clamps are connected, the inserting block of one half clamp is matched with the inserting groove of the other half clamp in an inserting mode, the stress area of the inserting structure is increased, stress is uniform, the bearing capacity is higher, and the structure is more stable.

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 present invention provides a cage-type shell load-bearing structure that is convenient for combined disassembly and assembly, belonging to the field of investment casting shell manufacturing. It includes: a support frame; the annular support frame is an annular support structure formed by connecting a left semi-ring and a right semi-ring through transverse support rods. Multiple annular support frames can be spliced, and the annular support frames are connected to each other through fixing bolts. The cage-type shell load-bearing structure that is convenient for combined disassembly and assembly of the present invention adopts a modular design, enabling the annular support frame to be assembled in multiple sections to increase the length of the annular support frame. In cooperation with the closed support frame to combine the two sides of the annular support frame, the closed support frame and the annular support frame form a circular ring, thereby improving the load-bearing capacity of the annular support frame and preventing the annular support frame from deforming due to extrusion, which is beneficial to improving the strength and stiffness of the load-bearing structure, so as to solve the problem that the load-bearing structure is weak in stiffness and strength, resulting in easy deformation of the load-bearing structure and damage to the mold.

The present invention discloses a light-weight, extremely fast assembled building system, including pipe fittings, plates, connectors and bolts; the four sides of the pipe fittings are provided with a plurality of locking grooves, the locking grooves are equidistantly arranged on the sides of the pipe fittings, pins are arranged in the locking grooves, and through holes are also arranged at the ends of the side of the pipe fittings; the pipe fittings can be used as beams or columns; the four sides of the plate are provided with rotating buckles corresponding to the locking grooves, the rotating buckles are inserted into the locking grooves and rotated to tighten the pins to splice the plate and the pipe fittings; the connectors are made of aluminum alloy, including a connecting body and a connecting column, at least one side of the connecting body is provided with a connecting column, and the six sides thereof are provided with or without connecting columns according to whether the pipe fittings are actually connected; the connecting column matches the inner cavity of the pipe fitting, and the end thereof is provided with a screw hole opposite to the through hole, the connecting column is inserted into the end of the pipe fitting so that the connecting body is matched with the end of the pipe fitting, and the bolt passes through the through hole and is locked into the screw hole. The present invention is easy to assemble and disassemble, has a concealed structure, high building stability, strong load-bearing capacity, and supports multi-story construction.

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 present invention relates to a special anti-deformation material and box structure for pallets, and belongs to the technical field of transport box structures. The box structure includes a base, a cover plate, two first side plates, two second side plates and a plurality of pull rods. The bottoms of the two first side plates are clamped on the base, the bottoms of the two second side plates are clamped on the base, and the two first side plates and the two second side plates are clamped together to form a circular structure through the side ends. A plurality of the pull rods are clamped in an array between the tops of the two first side plates. The two first side plates are provided with a latch assembly, and the bottom of the cover plate is clamped on the tops of the two first side plates and the two second side plates. By ensuring the firmness of the box structure while adopting a wave structure for lightweight design, and the various components are all detachable, which is convenient for transportation and installation, the box structure as a whole has good load-bearing capacity, is stable and has good buffering performance.

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.

The utility model belongs to the field of steel structure buildings, and particularly relates to a steel structure with a reinforcing structure, which comprises a stand column, the top of the stand column is fixedly connected with a top beam, the outer wall of the stand column is fixedly connected with a supporting ring seat, the supporting ring seat is provided with the reinforcing structure, and the reinforcing structure comprises a first hinge seat. A first hinge seat is arranged at the top of the supporting ring seat, a first hinge rod is hinged to the top of the first hinge seat, a connecting seat is slidably connected to the outer wall of the first hinge rod, and a second hinge rod is slidably connected to the inner wall of the connecting seat. According to the steel structure with the reinforcing structure, through cooperation of a first hinge seat, a first hinge rod, a connecting seat, a second hinge rod, a second hinge seat, a convex block and a reinforcing seat, the connecting structure of the stand column and the fixed beam is reinforced, the stability and the bearing capacity of the whole structure are effectively improved, in the using process, the reinforcing structure can resist the action of external force, and the service life of the steel structure is prolonged. And the stability and the safety of the whole structure are ensured.

Provided is a folding telescopic stool with a backrest that can provide back support to the user in the usage state without affecting the folding and storage function, can effectively improve the load-bearing capacity of the stool body, and can improve the comfort of the cushion. 【Solution means】The stool includes a base 1, and a lifting assembly including a plurality of load-bearing rings 2, 3, 4 that are mounted above the base and assembled by being nested from the outside to the inside in sequence, wherein a lifting lock structure is provided between adjacent load-bearing rings, a lifting assembly, a stool panel 5 mounted above the lifting assembly, and a backrest 6 rotatably mounted at the rear end of the stool panel. The lifting lock structure has a locked position and an unlocked position switched by the same-direction rotation along the circumferential direction of all the load-bearing rings.

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 provides a heavy load tray which comprises a transverse supporting rail, a vertical fixed sliding rail is arranged at the top of the transverse supporting rail and detachably connected with a plurality of roller skating assemblies, the roller skating assemblies are connected with movable sliding rails in a matched mode, the top of each movable sliding rail is connected with a carrying tray, the front portion of each carrying tray is small, and the rear portion of each carrying tray is large. The loading tray is designed along the edge of the inner side of the car hopper in an attached mode, and the loading tray is slidably connected with the vertical fixed sliding rail through a movable sliding rail, so that the problems that at present, a traditional car tray loading tray generally adopts a mode of bending guide rails and sliding wheels to carry out drawing operation, and due to the fact that the guide rail mode is low in bearing capacity, the loading tray is inconvenient to carry are solved. The technical problem that the pickup truck rear box tray is often stuck when being used in a sliding mode is solved.

The utility model discloses a heavy industrial caster which comprises a bearing bottom plate, a caster body, a caster support, a connecting shaft, a connecting sleeve and a plurality of steel balls, the caster body is in pin joint with the bottom of the caster support, the top of the caster support is fixedly connected with the connecting sleeve, a first annular groove is formed in the inner ring of the connecting sleeve, and a steel ball filling opening is formed in the side wall of the connecting sleeve. A second annular groove is formed in a shaft body of the connecting shaft, the connecting shaft is connected into the connecting sleeve in an inserted mode, the first annular groove and the second annular groove form an annular roller path, the steel balls enter the annular roller path through the steel ball filling opening, and a boss is fixedly arranged on the upper portion of the connecting shaft. A plurality of connecting holes connected with a carrier are formed in the edge of the bearing bottom plate. According to the heavy industrial trundle, the overall strength and the bearing capacity of the trundle are enhanced, the service life of the trundle is prolonged, meanwhile, the effect that one brake mechanism controls the trundle to move and rotate is achieved, and the heavy industrial trundle is high in reliability and low in cost.

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.