A construction site steel bar spacing positioning and binding tool

Abstract

The utility model discloses a construction site steel bar spacing positioning binding tool belongs to steel bar spacing positioning technical field. The utility model discloses a bearing plate, the both sides of bearing plate all are provided with the first sliding slot of setting along the front -back direction, adopt the first sliding slot and the second sliding slot on bearing plate and the cooperation of elevating system, have realized the flexible positioning of horizontal vertical steel bar, satisfy the binding demand of all kinds of steel mesh, and elevating system adjusts the height of clamping mechanism, can adapt to the stacking requirement of different specifications steel bar, ensure that the steel bar level is clear when binding. After the position of elevating system is locked to positioning mechanism, can effectively avoid the displacement of steel bar in construction, guarantee horizontal vertical steel bar spacing even stable, solved the problem that manual positioning is easy to appear deviation. The support effect of support mechanism to steel bar middle part can prevent long steel bar from bending down because of dead weight, guarantees steel mesh overall flatness, promotes the construction quality and structural safety of subsequent concrete pouring.

Description

Technical Field

[0001] This utility model belongs to the field of rebar spacing positioning technology, specifically a rebar spacing positioning and binding tool for construction sites. Background Technology

[0002] In the field of building construction, reinforced concrete structures, with their excellent load-bearing capacity and structural stability, have become a core component of various building projects. As the "skeleton" of reinforced concrete structures, the quality of the steel reinforcement installation directly determines the safety, durability, and seismic performance of the entire building structure. Precise control of the steel reinforcement spacing is one of the key technical indicators in steel reinforcement installation. Whether it's basic components such as beams, slabs, and columns, or important structures such as shear walls and foundation raft slabs, the steel reinforcement spacing must strictly adhere to the design specifications and construction drawings. Excessive deviation can not only lead to uneven structural stress, causing quality problems such as cracks and deformation, but may also require rework and rectification, increasing construction costs and time risks.

[0003] Currently, the traditional manual positioning method is commonly used for positioning and binding rebar spacing on construction sites. This mainly relies on construction workers to measure with a tape measure and then temporarily fix the rebars with wire to complete the binding. This method has several inherent drawbacks: First, positioning accuracy is difficult to guarantee. Manual measurement is easily affected by factors such as operating experience, visual errors, and environmental interference. Especially when multiple rebars are densely arranged, the spacing between adjacent rebars is prone to deviation, making it difficult to meet the high standards of construction accuracy requirements. Second, construction efficiency is low. During the binding process, the positioned rebars are prone to displacement due to collisions and pulling, requiring repeated calibration and adjustment, which significantly increases labor costs and working time. Furthermore, when binding rebar mesh of the same specification, the operator needs to remeasure to determine the spacing between the rebars after binding each mesh, resulting in low construction efficiency.

[0004] Therefore, developing a construction site rebar spacing positioning and binding tool that can achieve precise positioning, flexible adjustment, and stable fixing of rebar spacing, while also providing rebar support, has become an urgent technical need in the current construction field. It is of great practical significance for improving construction quality, reducing labor intensity, and shortening the construction period. Utility Model Content

[0005] To address the problems mentioned in the background art, the purpose of this utility model is to provide a tool for positioning and binding rebar spacing on construction sites, which has the advantages of good positioning effect and ease of use.

[0006] This utility model provides the following technical solution: a tool for positioning and binding rebar spacing on a construction site, comprising a bearing plate, wherein both sides of the bearing plate are provided with a first sliding groove arranged in the front-to-back direction, and both the front and back sides of the bearing plate are provided with a second sliding groove arranged in the left-to-right direction. Multiple lifting mechanisms are slidably connected inside the first and second sliding grooves via sliders. A clamping mechanism is provided at the top of each lifting mechanism, and a positioning mechanism is provided on the surface of each lifting mechanism. The lifting mechanism can adjust the height of the clamping mechanism, and the clamping mechanism can clamp horizontally placed or vertically placed rebars. The positioning mechanism can lock the position of the lifting mechanism in the sliding groove, thereby ensuring that the spacing between horizontally placed rebars and vertically placed rebars remains stable. A support mechanism is provided at the top of the bearing plate, which can support the middle of the rebars to prevent the middle of the rebars from bending downwards.

[0007] The lifting mechanism includes a support column fixedly connected to the surface of the slider. The top of the support column is provided with a groove, and a movable column is provided inside the groove. The surface of the movable column is provided with a plurality of first slots evenly distributed in the vertical direction. The support column is internally threaded with a first bolt, which is inserted into the slot.

[0008] The beneficial effects of this utility model are as follows: 1. This utility model utilizes a first and second sliding groove on the bearing plate in conjunction with a lifting mechanism to achieve flexible positioning of horizontal and vertical reinforcing bars, meeting the binding requirements of various reinforcing meshes. The lifting mechanism adjusts the height of the clamping mechanism to adapt to the stacking requirements of reinforcing bars of different specifications, ensuring clear reinforcing bar layers during binding. After the positioning mechanism locks the position of the lifting mechanism, it effectively prevents the reinforcing bars from shifting during construction, ensuring uniform and stable spacing between horizontal and vertical reinforcing bars, and solving the problem of deviations that easily occur during manual positioning. The supporting mechanism's support for the middle of the reinforcing bars prevents long reinforcing bars from bending downwards due to their own weight, ensuring the overall flatness of the reinforcing mesh and improving the construction quality and structural safety of subsequent concrete pouring.

[0009] 2. This utility model achieves precise height adjustment of the clamping mechanism through a nested structure of a support column and a movable column, coupled with the insertion and fixing of the first bolt and the first slot. The evenly distributed slots on the movable column provide multiple fixed height settings for adjustment. Operators can quickly adjust the movable column to a suitable height and lock it according to actual needs such as the diameter of the rebar and the binding layer. The adjustment process is simple and efficient. The fixed connection between the support column and the slider ensures the overall stability of the lifting mechanism, preventing swaying during height adjustment. This structural design ensures both flexibility in height adjustment and reliable load-bearing capacity. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the lifting mechanism of this utility model; Figure 3 This is a schematic diagram of the support mechanism structure of this utility model; Figure 4 This utility model Figure 1 Enlarged schematic diagram of the structure at point A in the middle; Figure 5 This utility model Figure 1 Enlarged schematic diagram of the structure at point B; Figure 6 This utility model Figure 3 Enlarged schematic diagram of the structure at point C. Detailed Implementation

[0011] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0012] like Figures 1 to 6 As shown, a rebar spacing positioning and binding tool for construction sites includes a support plate 1. The support plate 1 has first grooves on both sides arranged in a front-to-back direction, and second grooves on both the front and back sides arranged in a left-to-right direction. Multiple lifting mechanisms are slidably connected to the first and second grooves via sliders. The sliders and lifting mechanisms are fixedly connected by screws, and can be disassembled as needed. A clamping mechanism is provided at the top of each lifting mechanism, and a positioning mechanism is provided on the surface of the lifting mechanism. The lifting mechanism can adjust the height of the clamping mechanism, which can clamp horizontally or vertically placed rebars. The positioning mechanism can control the lifting mechanism within the grooves. The positions are locked to ensure that the spacing between the horizontally placed steel bars and the vertically placed steel bars remains stable. A support mechanism is provided on the top of the bearing plate 1. The support mechanism can support the middle of the steel bars to prevent the middle of the steel bars from bending downwards. The standard parts used in this utility model can all be purchased from the market. The irregular parts can be customized according to the description and drawings. The specific connection methods of each part all adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art. The contents not described in detail in this specification are the prior art known to those skilled in the art. This application will not describe them in detail.

[0013] refer to Figure 2 The lifting mechanism includes a support column 2 fixedly connected to the surface of the slider. The top of the support column 2 is provided with a groove, and a movable column 3 is provided inside the groove. The surface of the movable column 3 is provided with a plurality of first slots evenly distributed in the vertical direction. The support column 2 is internally threaded with a first bolt 4, which is inserted into the slot.

[0014] This embodiment achieves precise height adjustment of the clamping mechanism through the nested structure of the support column 2 and the movable column 3, combined with the insertion and fixation of the first bolt 4 and the first slot. The evenly distributed slots on the movable column 3 provide multiple fixed height settings for adjustment. Operators can quickly adjust the movable column 3 to a suitable height and lock it according to actual needs such as the diameter of the rebar and the binding layer. The adjustment process is simple and efficient. The fixed connection between the support column 2 and the slider ensures the overall stability of the lifting mechanism, preventing swaying during height adjustment. This structural design ensures both flexibility in height adjustment and reliable load-bearing capacity.

[0015] refer to Figure 2 The clamping mechanism includes a U-shaped frame 5 fixedly connected to the top of the movable column 3. The U-shaped frame 5 has symmetrically arranged clamping plates 6 inside. The U-shaped frame 5 has symmetrically threaded first threaded rods 7 inside. The first threaded rods 7 are rotatably connected to the clamping plates 6. A rotating handle is fixedly connected to the end of the first threaded rods 7 away from the clamping plates 6.

[0016] In this embodiment, the U-shaped frame 5 of the clamping mechanism provides a stable placement space for the reinforcing bars. The symmetrically arranged clamping plates 6 can form a uniform clamping force on the reinforcing bars from both sides, ensuring that the reinforcing bars will not shift or rotate during the binding process. The threaded connection between the first threaded rod 7 and the U-shaped frame 5, along with its rotational connection with the clamping plates 6, allows the operator to drive the clamping plates 6 to move by rotating the handle. The operation is convenient and labor-saving, requiring no additional tools.

[0017] refer to Figure 2 The positioning mechanism includes a third slide groove on the surface of the support column 2. A locking frame 8 is slidably connected inside the third slide groove. Multiple evenly distributed second slots are provided around the top of the bearing plate 1. The locking frame 8 is inserted into the second slots. A fixing block 9 is fixedly connected to the surface of the support column 2. A compression spring 10 is fixedly connected to the bottom of the fixing block 9. The end of the compression spring 10 away from the fixing block 9 is fixedly connected to the top of the locking frame 8. When the operator pulls the locking frame 8 upward, the compression spring 10 is compressed. When the locking frame 8 separates from the second slot, the locking of the support column 2 is released, which in turn indirectly releases the locking of the slider.

[0018] This embodiment utilizes a positioning mechanism with a locking frame 8 that engages with the second slot, enabling rapid locking of the lifting mechanism within the slide groove. Operation is simple and intuitive; the operator only needs to pull the locking frame 8 upwards to release it. Upon release, the restoring force of the compression spring 10 automatically inserts the locking frame 8 into the slot for fixation, significantly improving the efficiency of position adjustment and locking. The elasticity of the compression spring 10 ensures a tight fit between the locking frame 8 and the second slot, preventing locking failure due to construction vibrations and guaranteeing the stability of the rebar spacing. The third slide groove on the surface of the support column 2 provides a stable sliding trajectory for the locking frame 8, preventing it from shifting during movement and ensuring precise locking. This structural design allows operators to flexibly adjust the lifting mechanism spacing and reliably lock it according to construction drawings, effectively reducing errors from manual positioning and improving the consistency of the rebar mesh spacing.

[0019] refer to Figure 3 The support mechanism includes damping grooves on the front and rear sides of the top of the bearing plate 1. Multiple damping sliding blocks 14 are slidably connected to the inside of the damping grooves. A support plate 11 is fixedly connected to the top of the damping sliding blocks 14. A receiving groove is provided on the top of the support plate 11. A movable plate 12 is provided inside the receiving groove. A support roller 13 is rotatably connected to the top of the movable plate 12 through a rotating seat. The support roller 13 is arranged in the front-back direction. Multiple third slots are provided on the front of the movable plate 12, which are evenly distributed in the vertical direction. A second bolt 15 is threadedly connected to the inside of the support plate 11. The second bolt 15 is inserted into the third slot. When binding the steel mesh, the horizontally placed steel bars are placed below the vertically placed steel bars. At this time, the support roller 13 is perpendicular to the horizontally placed steel bars, thereby supporting the middle part of the steel bars.

[0020] In this embodiment, the damping groove of the support mechanism cooperates with the damping sliding block 14, allowing the support plate 11 to move along the bearing plate 1. This enables precise adjustment of the support position according to the required length and spacing of the reinforcing bars, ensuring effective support for the middle of the reinforcing bars. The support roller 13 is connected to the movable plate 12 via a rotating seat. Its rolling characteristics reduce frictional resistance during the placement and adjustment of the reinforcing bars. The nested structure of the movable plate 12 and the support plate 11, along with the fixing method of the second bolt 15 and the third slot, allows for flexible adjustment of the height of the support roller 13, preventing bending of the reinforcing bars due to improper support height. When binding the reinforcing mesh, the perpendicular arrangement of the support roller 13 to the transverse reinforcing bars provides stable support, preventing them from bending under their own weight, ensuring the flatness of the reinforcing mesh, reducing subsequent straightening work, and improving construction efficiency and quality.

[0021] refer to Figure 1 A sleeve 17 is fixedly connected to the bottom of the bearing plate 1. A second threaded rod 18 is connected to the inside of the sleeve 17. A support pad 19 is fixedly connected to the bottom of the second threaded rod 18. Scale lines 16 are provided around the top of the bearing plate 1.

[0022] In this embodiment, the sleeve 17 at the bottom of the bearing plate 1 cooperates with the second threaded rod 18 to form an adjustable support structure. The operator can adjust the height and level of the bearing plate 1 by rotating the second threaded rod 18, so that the tool can adapt to the uneven ground environment of the construction site and ensure that the bearing plate 1 is always in a horizontal state, providing a stable benchmark for the positioning of the reinforcing bars.

[0023] Move the support plate 1 to the designated work area on the construction site, ensuring that the placement is convenient for rebar handling and tying operations. Next, check the sleeve 17 and the second threaded rod 18 at the bottom of the support plate 1. Rotate the second threaded rod 18 to adjust the contact state between the support pad 19 and the ground until the support plate 1 remains level and stable, preventing tool shaking due to uneven ground from affecting positioning accuracy. At the same time, check whether all components of the device are intact, ensuring that the lifting mechanism, clamping mechanism, positioning mechanism, and support mechanism can all move normally without jamming or damage.

[0024] Subsequently, based on the requirements for rebar spacing in the construction drawings, the placement positions of the transverse and longitudinal rebars are planned, and the corresponding rebar fixing points for each lifting mechanism are determined. Next, the positions of the lifting mechanisms corresponding to the transverse rebars are adjusted. The locking frame 8 on the surface of the support column 2 is pulled upward. At this time, the compression spring 10 is compressed, and the locking frame 8 separates from the second slot on the bearing plate 1, releasing the lock on the support column 2. The support column 2 is pushed to drive the slider to slide along the first slide groove. Combined with the scale line 16 on the top of the bearing plate 1, each support column 2 is adjusted to the preset transverse rebar spacing position. The locking frame 8 is released, the compression spring 10 returns to its original position, and the locking frame 8 is inserted into the corresponding second slot, completing the position locking of the transverse lifting mechanism. Then, the lifting mechanisms corresponding to the longitudinal rebars are adjusted in the same way. The slider is pushed to slide along the second slide groove, and the position is locked after determining the spacing according to the scale line 16. Next, adjust the height of the lifting mechanism according to the diameter of the reinforcing bars and the stacking requirements. Loosen the first bolt 4 on the support column 2 to separate it from the first slot on the movable column 3. Pull the movable column 3 up and down within the groove of the support column 2 to adjust the movable column 3 to a suitable height, ensuring clear layering when stacking transverse and longitudinal reinforcing bars. Then tighten the first bolt 4 and insert it into the corresponding first slot to fix the position of the movable column 3. Subsequently, adjust the support mechanism and push the damping sliding block 14 along the damping groove. Adjust the support plate 11 to a position below the middle of the reinforcing bar according to the length of the reinforcing bar. Loosen the second bolt 15 on the support plate 11 and move the movable plate 12 to adjust the height of the support roller 13 so that the top of the support roller 13 matches the preset placement height of the transverse reinforcing bar. Tighten the second bolt 15 and insert it into the third slot to fix the movable plate 12. Place the transverse reinforcing bars one by one into the U-shaped frame 5 of the corresponding clamping mechanism. Rotate the handle to drive the first threaded rod 7 to rotate, pushing the clamping plate 6 closer to the reinforcing bar until the clamping plate 6 clamps and fixes the transverse reinforcing bar, ensuring that the reinforcing bar will not shift. Simultaneously, ensure the bottom of the transverse reinforcing bar is in contact with the support roller 13, which provides mid-section support. Next, place the longitudinal reinforcing bar in the corresponding U-shaped frame 5 above the transverse reinforcing bar, and repeatedly rotate the handle to clamp the longitudinal reinforcing bar using the clamping plate 6, ensuring a tight fit between the transverse and longitudinal reinforcing bars at their intersection. After all reinforcing bars are secured, the operator can begin binding at the intersection. This device does not require frequent adjustments for reinforcing mesh of the same specification; subsequent transverse and longitudinal reinforcing bars can be repeatedly placed in and bound.

Claims

1. A tool for positioning and binding steel bar spacing on a construction site, comprising a bearing plate (1), characterized in that: The bearing plate (1) has a first sliding groove on both sides arranged in the front-to-back direction, and a second sliding groove on both the front and back sides arranged in the left-to-right direction. The first and second sliding grooves are connected by multiple lifting mechanisms through sliders. The top of the lifting mechanism is provided with a clamping mechanism, and the surface of the lifting mechanism is provided with a positioning mechanism. The lifting mechanism can adjust the height of the clamping mechanism. The clamping mechanism can clamp the horizontally placed or vertically placed steel bars. The positioning mechanism can lock the position of the lifting mechanism in the sliding groove, thereby ensuring that the spacing between the horizontally placed steel bars and the vertically placed steel bars remains stable. The top of the bearing plate (1) is provided with a support mechanism, which can support the middle part of the steel bars.

2. The tool for positioning and binding steel reinforcement spacing on a construction site according to claim 1, characterized in that: The lifting mechanism includes a support column (2) fixedly connected to the surface of the slider. The top of the support column (2) is provided with a groove, and a movable column (3) is provided inside the groove. The surface of the movable column (3) is provided with a plurality of first slots evenly distributed in the vertical direction. The inside of the support column (2) is threaded with a first bolt (4), and the first bolt (4) is inserted into the slot.

3. The tool for positioning and binding steel bar spacing at a construction site according to claim 2, characterized in that: The clamping mechanism includes a U-shaped frame (5) fixedly connected to the top of the movable column (3). The U-shaped frame (5) is symmetrically provided with clamping plates (6). The U-shaped frame (5) is symmetrically threaded with a first threaded rod (7). The first threaded rod (7) is rotatably connected to the clamping plate (6). The end of the first threaded rod (7) away from the clamping plate (6) is fixedly connected with a rotating handle.

4. A tool for positioning and binding steel bar spacing at a construction site according to claim 3, characterized in that: The positioning mechanism includes a third slide groove on the surface of the support column (2), and a locking frame (8) is slidably connected inside the third slide groove. Multiple evenly distributed second slots are provided around the top of the bearing plate (1). The locking frame (8) is inserted into the second slots. A fixing block (9) is fixedly connected to the surface of the support column (2). A compression spring (10) is fixedly connected to the bottom of the fixing block (9). The end of the compression spring (10) away from the fixing block (9) is fixedly connected to the top of the locking frame (8). When the operator pulls the locking frame (8) upward, the compression spring (10) is compressed. When the locking frame (8) separates from the second slot, the locking of the support column (2) is released, and the locking of the slider is indirectly released.

5. A tool for positioning and binding steel reinforcement spacing on a construction site according to claim 4, characterized in that: The support mechanism includes damping grooves disposed on the front and rear sides of the top of the bearing plate (1), and multiple damping sliding blocks (14) are slidably connected to the inside of the damping grooves.

Images