Adjustable steel reinforcing rod bar self-conveying bench

Abstract

The utility model provides a kind of adjustable steel reinforced coil rod self-conveying rack, chassis is the rectangular frame structure formed by the connection of multiple horizontal poles and multiple vertical poles, four corners are respectively equipped with four universal wheels and four lifting legs, two support rods are symmetrically provided along the central axis of chassis, the ends of support rod are bridged on the horizontal pole of the end of chassis, support rod can be adjusted transversely relative to horizontal pole and fixed by stud bolt, the upper end of support rod is bridged with rotating shaft, rotating shaft can be adjusted and fixed relative to the end of support rod, multiple rotatable rollers are arranged on rotating shaft, steel reinforced coil rod is placed between two rotating shafts and its lower edge is abutted on roller. Solve the problem of low turnover efficiency, dependence on lifting equipment and large site occupation of fixed steel reinforced coil rod rack.

Description

Technical Field

[0001] This utility model relates to the field of engineering construction technology, and in particular to an adjustable rebar coil self-conveying platform. Background Technology

[0002] In the field of construction engineering, steel reinforcement is a primary structural material, and the storage and transportation of its raw materials are the first steps before processing. Currently, fixed steel reinforcement material racks are commonly used on construction sites. These racks are typically welded from structural steel sections and fixedly installed in a specific area of ​​the site. They are structurally stable and have relatively low manufacturing costs.

[0003] However, this traditional fixed platform has many inherent drawbacks in practical applications: low turnover efficiency, significant site occupation, and once installed, the platform cannot be moved. After a batch of steel bars is processed, the platform area is idle until the next batch of raw materials arrives. This results in a serious waste of space resources on construction sites with limited space, making it impossible to achieve a "flexible" site layout and reducing the overall turnover and utilization efficiency of the site; reliance on lifting equipment and complex collaborative operations: the transfer of steel bar raw materials from the storage yard to the processing area relies entirely on tower cranes or truck cranes. This not only requires advance planning and occupancy of valuable lifting equipment time, but also requires dedicated slingers and supervisors. The process is complex, coordination is difficult, and it is constrained by factors such as weather and equipment scheduling, resulting in poor flexibility; safety and quality risks exist: frequent use of cranes for steel bar hoisting increases the safety risk of falling objects from heights. At the same time, during the process of moving steel bars from the fixed platform to the processing area, manual assistance in prying and dragging is often required, which can easily lead to accidents such as collisions and slips, and damage to the surface coating or threads of the steel bars, affecting the quality of the project.

[0004] Therefore, we need to design a new type of steel bar raw material rack that can autonomously and smoothly and accurately feed stored steel bar raw materials into subsequent processing equipment, thereby reducing reliance on large lifting equipment, optimizing the construction site layout, and improving the automation level of steel bar processing and overall construction efficiency. Utility Model Content

[0005] The main purpose of this utility model is to provide an adjustable rebar coil self-conveying platform to solve the problems of low turnover efficiency, reliance on lifting equipment, and large site occupation of fixed rebar coil platforms.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: an adjustable rebar coil self-conveying platform, the chassis is a rectangular frame structure formed by connecting multiple horizontal bars and multiple vertical bars, four universal wheels and four lifting legs are respectively provided at the four corners, two support rods are symmetrically arranged along the central axis of the chassis, the two ends of the support rods are connected to the horizontal bars at both ends of the chassis, the support rods can be adjusted laterally relative to the horizontal bars and fixed by double-headed bolts, the upper end of the support rods is connected to a rotating shaft, the rotating shaft can be rotated and adjusted relative to the end of the support rods and fixed, multiple rotatable rollers are arranged at intervals on the rotating shaft, the rebar coils are placed between the two rotating shafts and their lower edges abut against the rollers.

[0007] In the preferred embodiment, vertical leaf plates are symmetrically arranged on both sides of the bottom of both ends of the support rod, and each leaf plate has at least one vertical first through hole; Multiple second through holes are correspondingly opened on the crossbars at both ends of the chassis; Double-ended bolts are passed through the first and second through holes to fix the support rods on both sides at the required spacing.

[0008] In the preferred embodiment, the support rod includes a longitudinal bottom rod and multiple vertical supports, the positions of which correspond to the positions of the horizontal rods and the gaps between the rollers.

[0009] In the preferred embodiment, reinforcing ribs are provided on both sides of the connection between the longitudinal bottom rod and the vertical support.

[0010] In the preferred embodiment, an arc-shaped baffle is provided at the interval between adjacent rollers. The lower end of the arc-shaped baffle is fixedly connected to the rotating shaft, and the upper end extends towards the top of the steel bar coil. The extension height is greater than the bending radius of the steel bar coil. The arc-shaped baffle extends to the middle of the adjacent rollers along the length of the shaft, above the outer contour of the roller.

[0011] In the preferred embodiment, the top of the vertical support corresponding to the arc-shaped baffle is provided with a Y-shaped fork structure, and the lower end of the arc-shaped baffle is located within the fork gap of the Y-shaped fork structure.

[0012] In the preferred embodiment, one end of the rotating shaft passes through the vertical support and is coaxially and fixedly connected to the throttle handle; The throttle includes a handle and a turntable. The handle can move back and forth in a direction perpendicular to the plane of the turntable, and its lower end is inserted into a vertical support to fix the angle of the throttle shaft.

[0013] In the preferred embodiment, multiple pin holes are evenly provided along the axis of rotation at the corresponding positions on the vertical support end face; The starting point of the handle's stroke is set so that its lower end is completely disengaged from the pin hole when the throttle is turned.

[0014] In the preferred embodiment, a tapered guide tube is provided at one end of the chassis, with its large-diameter end facing the side of the steel bar coil and its small-diameter section facing outward, for the end of the steel bar coil to pass through.

[0015] In the preferred embodiment, the chassis end is also provided with a tow hook, the end of which is fixedly connected to the middle of the crossbar for moving the entire platform.

[0016] This invention provides an adjustable rebar conveying platform, significantly improving site utilization and turnover efficiency. The chassis is equipped with casters and lifting outriggers, enabling the platform to move as a whole without fixed installation. After processing, it can be easily moved, freeing up site space and avoiding the waste caused by traditional fixed platforms occupying the site for extended periods, thus achieving dynamic and efficient utilization of the construction site. Simultaneously, its mobility reduces reliance on large lifting equipment such as tower cranes or truck cranes, saving equipment scheduling time and operating costs, simplifying logistics, and greatly improving the overall turnover efficiency of rebar from storage to processing.

[0017] Enhanced versatility and adaptability, reduced costs: The support rods are adjusted laterally on the chassis crossbars via leaf plates, through holes, and double-ended bolts, allowing for flexible adjustment and reliable fixing of the spacing between the two support rods according to different diameter steel coils. This enables a single frame to accommodate various specifications of steel coils, eliminating the need for custom-made frames for different sizes of coils, effectively reducing equipment investment and maintenance costs, and improving construction flexibility. The symmetrical structural design ensures balanced stress distribution when placing coils of different sizes.

[0018] Effective protection of reinforcing bars and reduction of conveying resistance: The rotatable roller installed on the upper shaft of the support rod transforms the sliding friction between the reinforcing bar coil and the support into rolling friction, which significantly reduces the frictional damage to the reinforcing bars during storage and conveying, and reduces the resistance when pulling the reinforcing bar coil for unwinding or movement, thereby improving the smoothness and automation level of conveying.

[0019] To prevent rebar from unwinding and improve safety: Arc-shaped baffles, positioned between adjacent rollers, extend beyond the bending radius of the rebar coil, effectively wrapping the sides of the coil. Even if the worktable tilts or vibrates slightly during movement or operation, the arc-shaped baffles reliably restrain the rebar, preventing edges from unwinding. This eliminates the safety risks associated with manually handling unwinding, ensuring operational safety and reducing labor intensity. The baffles are fixed to the rotating shaft and their angle can be adjusted with the shaft; their extended design provides maximum protection without obstructing roller rotation.

[0020] Precise guidance, reduced manual intervention: The conical guide cylinder at the end of the chassis has its large-diameter end facing the coiled rebar for easy reception of any potentially misaligned ends, while the small-diameter end precisely connects to the feed inlet of the processing equipment. The conical inner wall automatically corrects for any misalignment of the rebar ends, achieving seamless connection with subsequent processing equipment. This avoids the hassle of repeated manual adjustments and the risk of impact, improving conveying accuracy and automation while protecting the rebar end structure.

[0021] The structure is robust and reliable, and operation is convenient: the support rod adopts a structure of longitudinal base rods, vertical supports, and reinforcing ribs, and is supported by multiple horizontal bars, ensuring overall rigidity and load-bearing capacity over long spans, especially resisting the lateral forces generated by the coiled rebar. The shaft angle adjustment mechanism is simple and practical in design, allowing operators to quickly set the protection angle of the arc-shaped baffle according to the size of the coil. The tow hook facilitates the overall movement of the platform using external power. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is the overall appearance and structural diagram of this utility model; Figure 2 This is a structural diagram of the reinforcing bar coil placed on a platform according to this utility model; Figure 3 This is a diagram of the chassis structure of this utility model; Figure 4 This is a structural diagram of the single-sided support rod of this utility model; Figure 5 This is a disassembly diagram of the throttle handle of this utility model; Figure 6 This is a cross-sectional view of the support rod and the chassis anchorage of this utility model.

[0023] In the diagram: chassis 1; crossbar 101; second through hole 1011; longitudinal bar 102; caster wheel 2; lifting outrigger 3; support rod 4; longitudinal bottom bar 401; vertical support 402; pin hole 4021; leaf plate 403; first through hole 4031; reinforcing rib 404; double-headed bolt 5; rotating shaft 6; roller 7; arc-shaped baffle 8; throttle 9; handle 901; turntable 902; conical guide cylinder 10; tow hook 11. Detailed Implementation

[0024] Example 1 like Figure 1-6 As shown, an adjustable rebar coil self-conveying platform has a chassis 1 that is a rectangular frame structure formed by connecting multiple horizontal bars 101 and multiple vertical bars 102. Four universal wheels 2 and four lifting legs 3 are respectively provided at the four corners. Two support rods 4 are symmetrically arranged along the central axis of the chassis 1. The two ends of the support rods 4 are connected across the horizontal bars 101 at both ends of the chassis 1. The support rods 4 can be adjusted laterally relative to the horizontal bars 101 and are fixed by double-headed bolts 5. A rotating shaft 6 is connected across the upper end of the support rod 4. The rotating shaft 6 can be rotated and adjusted relative to the end of the support rod 4 and fixed. Multiple rotatable rollers 7 are arranged at intervals on the rotating shaft 6. The rebar coil is placed between the two rotating shafts 6 and its lower edge abuts against the rollers 7.

[0025] This application designs a movable rebar coiling stand, with a chassis 1 as the basic load-bearing component. The casters 2 enable the stand to move 360° flexibly. When the stand moves to the designated processing position, the lifting legs 3 are lowered, allowing the casters 2 to leave the ground. The stand is fixed by the rigid contact between the lifting legs 3 and the ground. The relative spacing of the support rods 4 can be adjusted so that the stand can hold rebar coils of different coil sizes. This symmetrical structure ensures the force balance of the rebar coils and transforms the frictional contact between the rebar coils and the support into rolling friction through the rollers 7, reducing rebar damage and resistance during transportation.

[0026] This device can adjust the position of the platform without relying on cranes or large trailers, reducing dependence on large lifting equipment, preventing the platform from shifting due to vibration or the traction force of the steel bars during the steel bar transportation process, ensuring the stability of the transportation process, and the platform is suitable for the transportation of steel bars of various specifications. There is no need to customize the platform separately for different steel bars, reducing equipment costs, improving construction flexibility, avoiding steel bar damage, reducing resistance during transportation, and improving the level of automation in transportation.

[0027] In the preferred embodiment, vertical leaf plates 403 are symmetrically provided on both sides of the bottom of the two ends of the support rod 4, and each leaf plate 403 has at least one vertical first through hole 4031. Multiple second through holes 1011 are provided on the crossbars 101 at both ends of the chassis 1; The double-ended bolt 6 passes through the first through hole 4031 and the second through hole 1011 to fix the two support rods 4 at the required spacing.

[0028] In this embodiment, the chassis 1 is preferably a rectangular frame structure formed by welding multiple horizontal bars 101 and vertical bars 102 cut from I-beams. Each leaf plate 403 is provided with two first through holes 4031, which correspond to the second through holes 1011 on the two side flanges at the top of the I-beams of the horizontal bars 101.

[0029] The plate 403 can increase the contact area between the support rod 4 and the crossbar 101, avoid stress concentration problems that occur when the support rod 4 is only connected to the crossbar 101 through its end, and reduce deformation of the connection part.

[0030] The number and spacing of the second through holes 1011 are adapted to the common coil size of the steel bar. When in use, the two side support rods 4 are synchronously and symmetrically adjusted and fixed so that the coil center of the steel bar is parallel to the central axis of the base plate 1. The load of the steel bar is transmitted to the lifting leg 3 through the base plate 1 frame and evenly transmitted to the ground, avoiding the steel bar from tilting and slipping due to the offset of one side support.

[0031] In the preferred embodiment, the support rod 4 includes a longitudinal bottom rod 401 and a plurality of vertical supports 402. The positions of the vertical supports 402 correspond to the positions of the horizontal rod 101 and to the gaps between the rollers 7.

[0032] In the preferred embodiment, reinforcing ribs 404 are provided on both sides of the connection between the longitudinal bottom rod 401 and the vertical support 402.

[0033] Because the support rod 4 has a long span, it is supported vertically along its length by multiple crossbars 101 on the chassis 1. The vertical support 402 is located at the crossbars 101 to provide bottom support for the support of the rotating shaft 6. When the steel wire rod is placed on the support rod 4, the support rod is subjected to lateral forces from both sides. Therefore, a reinforcing rib 404 is provided at the connection between the vertical support 402 and the longitudinal bottom rod 401 to enhance its lateral support performance.

[0034] In the preferred embodiment, an arc-shaped baffle 8 is provided at the interval between adjacent rollers 7. The lower end of the arc-shaped baffle 8 is fixedly connected to the rotating shaft 6, and the upper end extends towards the top of the steel bar coil. Its extension height is greater than the bending radius of the steel bar coil. The arc-shaped baffle 8 extends to the middle of the adjacent roller 7 along the length of the shaft 6, above the outer contour of the roller 7.

[0035] In the preferred embodiment, the top of the vertical support 402 at the corresponding position of the arc-shaped baffle 8 is provided with a Y-shaped fork structure, and the lower end of the arc-shaped baffle 8 is located in the fork gap of the Y-shaped fork structure.

[0036] Traditional test benches lack protective structures, and the edges of the rebar coils are prone to fraying due to vibration or tilting, requiring manual sorting, which increases safety risks and labor intensity. The height of the arc-shaped baffle 8 is greater than the bending radius of the rebar, which can wrap the sides of the rebar coils. Even if the test bench tilts slightly or the rebar vibrates, it can prevent the rebar from fraying. At the same time, the arc-shaped structure can reduce the friction between the rebar and the baffle, avoiding damage to the surface coating of the rebar.

[0037] The arc-shaped baffle 8 extends to both sides along the length of the shaft 6 to the middle of the adjacent roller 7, which is higher than the outer contour of the roller 7. This size design is to obtain a larger protection range without affecting the rotation of the roller 7.

[0038] The arc-shaped baffle 8 is compactly set in the gap space between adjacent rollers 7 through the Y-shaped fork structure at the top of the vertical support 402. The vertical support 402 provides rotational support for the long-span rotating shaft 6, while also providing some support for the self-weight of the arc-shaped baffle 8 without interfering with its rotation, so that the arc-shaped baffle 8 can freely rotate with the rotating shaft 6 to adjust its angle.

[0039] In the preferred embodiment, one end of the rotating shaft 6 passes through the vertical support 402 and is coaxially and fixedly connected to the throttle handle 9; The throttle 9 includes a handle 901 and a turntable 902. The handle 901 can move back and forth in a direction perpendicular to the plane of the turntable 902. Its lower end is inserted into a vertical support 402 to fix the angle of the rotating shaft 6.

[0040] In the preferred embodiment, multiple pin holes 4021 are evenly provided along the axis of the rotating shaft 6 at the corresponding positions on the end face of the vertical support 402; The stroke start point of handle 901 is set so that when the throttle 9 is turned, its lower end is completely disengaged from the pin hole 4021.

[0041] Because the dimensions of the rebar coils vary, the contour enclosed by the middle of the arc-shaped baffle 8 must be compatible with the rebar coil. Before placing the rebar coil on the platform, first disengage the lower end of the handle 901 from the pin hole 4021, rotate the handle 9 to make the shaft 6 rotate, and the upper ends of the arc-shaped baffles 8 on both sides will form an opening. Adjust the distance between the support rods 4 on both sides so that it is slightly smaller than the diameter of the rebar coil. Then place the rebar coil on the roller 7, rotate the handle 9 again to make the arc-shaped baffle 8 surround the outer contour of the rebar coil, and then insert the lower end of the handle 901 into the pin hole 4021 at the corresponding angle to fix it at the protective angle.

[0042] In the preferred embodiment, a tapered guide cylinder 10 is provided at one end of the chassis 1, with its large-diameter end facing the side of the steel bar coil and its small-diameter section facing outward, for the end of the steel bar coil to pass through.

[0043] Traditional conveyor systems lack a guiding structure, making it easy for the ends of reinforcing bars to align with the feed inlet of the processing equipment due to conveying misalignment. This requires manual adjustment, increasing labor intensity and the risk of impact. The large-diameter end of the conical guide cylinder 10 expands the receiving range. Even if the end of the reinforcing bar is slightly misaligned, the guiding effect of the conical inner wall can correct it to the central axis. Then, it is precisely guided into the feed inlet of the processing equipment through the small-diameter end, achieving seamless connection between the reinforcing bar and the processing equipment. This reduces manual intervention and improves conveying accuracy and automation. At the same time, the conical structure prevents violent collisions between the end of the reinforcing bar and the edge of the guide cylinder, protecting the threaded structure of the reinforcing bar and ensuring project quality.

[0044] In the preferred embodiment, the chassis 1 is also provided with a tow hook 11 at one end, and the end of the tow hook 11 is fixedly connected to the middle of the crossbar 101 for moving the entire platform.

[0045] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. An adjustable self-contained steel bar conveying platform, characterized in that: The chassis (1) is a rectangular frame structure formed by connecting multiple horizontal bars (101) and multiple vertical bars (102). Four universal wheels (2) and four lifting legs (3) are provided at its four corners. Two support rods (4) are symmetrically arranged along the central axis of the chassis (1). The two ends of the support rods (4) are connected across the horizontal bars (101) at both ends of the chassis (1). The support rods (4) can be adjusted laterally relative to the horizontal bars (101) and fixed by double-headed bolts (5). A rotating shaft (6) is connected across the upper end of the support rods (4). The rotating shaft (6) can be rotated and fixed relative to the end of the support rods (4). Multiple rotatable rollers (7) are arranged at intervals on the rotating shaft (6). The steel wire rod is placed between the two rotating shafts (6) and its lower edge abuts against the rollers (7).

2. The adjustable rebar wire rod self-conveying platform according to claim 1, characterized in that: The support rod (4) has vertical leaf plates (403) symmetrically arranged on both sides of the bottom of both ends, and each leaf plate (403) has at least one vertical first through hole (4031). Multiple second through holes (1011) are provided on the crossbars (101) at both ends of the chassis (1). Double-ended bolts (5) pass through the first through hole (4031) and the second through hole (1011) to fix the two side support rods (4) at the required spacing.

3. The adjustable rebar wire rod self-conveying platform according to claim 1, characterized in that: The support rod (4) includes a longitudinal bottom rod (401) and multiple vertical supports (402). The position of the vertical supports (402) corresponds to the position of the horizontal bar (101) and corresponds to the gap of the roller (7).

4. The adjustable rebar wire rod self-conveying platform according to claim 3, characterized in that: Reinforcing ribs (404) are provided on both sides of the connection between the longitudinal bottom rod (401) and the vertical support (402).

5. The adjustable rebar wire rod self-conveying platform according to claim 1, characterized in that: An arc-shaped baffle (8) is provided at the interval between adjacent rollers (7). The lower end of the arc-shaped baffle (8) is fixedly connected to the rotating shaft (6), and the upper end extends to the top of the steel bar coil. Its extension height is greater than the bending radius of the steel bar coil. The arc-shaped baffle (8) extends to the middle of the adjacent roller (7) along the length of the shaft (6) above the outer contour of the roller (7).

6. The adjustable rebar wire rod self-conveying platform according to claim 1, characterized in that: The top of the vertical support (402) at the corresponding position of the arc-shaped baffle (8) is provided with a Y-shaped bifurcation structure, and the lower end of the arc-shaped baffle (8) is located in the bifurcation gap of the Y-shaped bifurcation structure.

7. The adjustable rebar wire rod self-conveying platform according to claim 1, characterized in that: One end of the rotating shaft (6) passes through the vertical support (402) and is coaxially fixedly connected to the throttle (9); The throttle (9) includes a handle (901) and a turntable (902). The handle (901) can move back and forth in a direction perpendicular to the plane of the turntable (902), and its lower end is inserted into a vertical support (402) to fix the angle of the rotating shaft (6).

8. The adjustable rebar wire rod self-conveying platform according to claim 7, characterized in that: Multiple pin holes (4021) are evenly provided along the axis of the rotating shaft (6) at the corresponding end face of the vertical support (402). The stroke start point of the handle (901) is set so that its lower end is completely disengaged from the pin hole (4021) when the throttle (9) is turned.

9. The adjustable rebar wire rod self-conveying platform according to claim 1, characterized in that: The chassis (1) has a tapered guide tube (10) at one end, with its large diameter end facing the side of the steel bar coil and its small diameter section facing outward, for the end of the steel bar coil to pass through.

10. An adjustable rebar wire rod self-conveying platform according to claim 1, characterized in that: The chassis (1) is also provided with a tow hook (11) at the end. The end of the tow hook (11) is fixedly connected to the middle of the crossbar (101) for traction of the entire platform.

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