A steel bar spacing construction control tool

Abstract

The application discloses a steel bar spacing construction control tool, and belongs to the technical field of box culvert construction, which comprises a bottom support frame, a plurality of groups of fixed adjusting limiting pieces which are detachably installed along the transverse direction of the bottom support frame, a strip-shaped adjusting main plate which is installed on the upside of the bottom support frame, a sliding groove which is formed on the adjusting main plate along the extension direction of the adjusting main plate, a sliding rod which is slidably arranged in the sliding groove, a locking piece which is connected to the upper end of the sliding rod, a movable limiting rod and a limiting plate which are connected to the lower end of the sliding rod, the limiting plate being located between the movable limiting rod and the adjusting main plate, the movable limiting rod extending downward along the vertical direction, the movable limiting rod being matched with the fixed limiting rod which is arranged in the transverse direction, a transverse limiting space for the steel bars being formed between the movable limiting rod and the fixed limiting rod, and a displacement driving device which is installed on the bottom support frame and used for controlling the longitudinal displacement of the adjusting main plate. The device can solve the problem of steel bar spacing control, is more convenient for construction, and can realize the rapid construction of the box culvert.

Description

Technical Field

[0001] This invention belongs to the field of box culvert construction technology, specifically relating to a tool for controlling the spacing of reinforcing bars during construction. Background Technology

[0002] Taking highway box culvert construction as an example, the control of the spacing of the box culvert reinforcement is extremely strict during construction. If the pass rate of the box culvert reinforcement spacing does not meet the acceptance standards, it will affect the evaluation of the entire section's model project and the creation of a quality project, leading to serious consequences. To address this, manual marking is often used before construction to ensure the overall pass rate of the box culvert reinforcement construction and the quality of the box culvert. However, in existing technologies, if manual marking or manual welding of positioning devices is used, in actual use, factors such as the surrounding environment and varying manual skills can cause the manual marking to be unclear, and the manual welding of positioning devices may have errors. The cumulative error caused by these errors results in the reinforcement spacing falling far short of the required pass rate. Although the aforementioned existing box culvert reinforcement spacing control measures can control some of the reinforcement spacing, their use is not only complex in the construction process, but also relatively complicated in operation, with large errors, causing great inconvenience to construction. Summary of the Invention

[0003] In view of this, the purpose of this invention is to provide a construction control tool for rebar spacing, which can solve the problem of rebar spacing control, make construction more convenient, and enable rapid construction of box culverts.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] This invention discloses a rebar spacing control tool, comprising a bottom support frame and multiple sets of fixed and adjustable limiting components detachably installed along the transverse direction of the bottom support frame. Each set of fixed and adjustable limiting components is evenly spaced along the longitudinal direction of the bottom support frame. Each fixed and adjustable limiting component includes a fixed limiting rod installed on the bottom support frame, extending upward vertically. A strip-shaped adjusting main plate is installed on the upper side of the bottom support frame, extending transversely. A groove is formed on the adjusting main plate along its extension direction, and a sliding rod is slidably disposed within the groove. A locking component is connected to the upper end of the sliding rod, and a movable limiting rod and a limiting plate are connected to the lower end of the sliding rod. The limiting plate is located between the movable limiting rod and the adjusting main plate. The movable limiting rod extends downward vertically and cooperates with each of the transversely arranged fixed limiting rods. The movable limiting rod and the fixed limiting rod are spaced apart to form a transverse limiting space for the rebar. A displacement driving device for controlling the longitudinal displacement of the adjusting main plate is installed on the bottom support frame.

[0006] Furthermore, the bottom support frame includes multiple parallel and spaced crossbeams and longitudinal beams perpendicularly connected to the crossbeams. The longitudinal beams and crossbeams are detachably connected, and the bottom of the crossbeams has several slots for positioning the longitudinal beams.

[0007] Furthermore, a track beam is fixed on the crossbeam, and the track beam is detachably connected to the crossbeam. A guide groove is provided on the track beam. The guide groove includes an inclined guide groove and a straight guide groove that communicates with the inner end of the inclined guide groove. The inclination direction of the inclined guide groove corresponds to the direction of the movable limit rod pointing to the side of the fixed limit rod. A guide rod is fixed at the lower end of the adjusting main plate, and the guide rod is slidably disposed in the guide groove.

[0008] Furthermore, the displacement driving device includes a cable, a guide wheel, a wheel seat, and a winch. The guide wheel is mounted on the track beam via the wheel seat. The guide wheel is located at the end of the straight guide groove away from the inclined guide groove. One end of the cable is connected to the guide rod, and the other end of the cable is connected to the winch after being guided by the guide wheel.

[0009] Furthermore, the bottom of the fixed limiting rod is rotatably connected to the base, and the base is simultaneously connected to a hinge seat and a first support. The base is hinged to the bottom support frame through the hinge seat. A pin is hinged inside the first support. The pins of the same set of fixed adjusting limiting components are simultaneously connected to a connecting rod. The connecting rod is hinged to one end of the hydraulic cylinder, and the other end of the hydraulic cylinder is hinged to a second support. The second support is installed on the bottom support frame.

[0010] Furthermore, the bottom of the base is provided with a ball groove, and a ball bearing is installed in the ball groove. The base is in rolling contact with the bottom support frame through the ball bearing.

[0011] Furthermore, the fixed limiting rod has an opening slot in the middle, and an upper truncated cone plate and a lower truncated cone plate are coaxially installed in the opening slot. A central shaft is rotatably provided at the center of the fixed limiting rod, and the central shaft is rotatably connected to both the upper and lower truncated cone plates. The upper end of the upper truncated cone plate is connected to the fixed limiting rod through a first elastic support device, and the lower end of the lower truncated cone plate is connected to the limiting rod through a second elastic support device. The upper and lower truncated cone plates are separated to form a vertical limiting space for the reinforcing bars.

[0012] Furthermore, the crossbeam includes a first crossbeam and a second crossbeam, with one end of the first crossbeam and the second crossbeam pivotally connected to each other. The adjusting main plate includes a first folding plate and a second folding plate, with one end of the first folding plate and the second folding plate pivotally connected to each other. Both the first folding plate and the second folding plate are provided with sliding grooves.

[0013] The beneficial effects of this invention are as follows:

[0014] This invention discloses a rebar spacing construction control tool. In specific use, the control adjustment main board and the movable limit rod connected to it move together along the longitudinal direction of the rebar. When the movable limit rod passes through the fixed limit rod of the same set of fixed adjustment limit components in sequence along the longitudinal direction, the spacing position of the rebar can be determined through the limiting effect of the movable limit rod and the fixed limit rod. This avoids the problem of insufficient spacing qualification rate caused by using conventional planning methods. It is convenient to use and can be reused to save costs.

[0015] In the device disclosed in this invention, different sets of fixed adjustment limiting components can be detached and installed according to actual conditions, and the number of corresponding movable limiting rods can also be adjusted to adapt to the positioning operation of steel bars with different spacings.

[0016] In the device disclosed in this invention, when the control and adjustment main board moves longitudinally, the movable limit rod can continuously act on the reinforcing bar along the longitudinal direction, thus achieving a "straightening" effect throughout the entire axial direction of the reinforcing bar. The action process is simple and direct, further improving the pass rate of reinforcing bar spacing and enhancing the construction quality of the box culvert.

[0017] Other advantages, objectives, and features of the invention will be set forth in the following description and will be apparent to those skilled in the art in some respects, or may be learned by practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0018] To make the objectives, technical solutions, and beneficial effects of this invention clearer, the following figures are provided for illustration:

[0019] Figure 1 This is a schematic diagram of the structure of the control tool of the present invention;

[0020] Figure 2 This is the front view of the control tool of the present invention;

[0021] Figure 3 This is a structural schematic diagram of the crossbeam;

[0022] Figure 4 for Figure 3 Enlarged view at point A;

[0023] Figure 5 A schematic diagram of the motherboard structure for adjustment;

[0024] Figure 6 This is a structural diagram of a fixed limiting rod;

[0025] Figure 7 This is a schematic diagram of the movable limit rod.

[0026] The following components are labeled in the attached diagram: 1. Bottom support frame; 2. Fixed limit rod; 3. Adjusting main plate; 4. Slide groove; 5. Slide rod; 6. Locking component; 7. Movable limit rod; 8. Limiting plate; 9. Reinforcing bar; 10. Crossbeam; 11. Longitudinal beam; 12. Groove; 13. Track beam; 14. Inclined guide groove; 15. Straight guide groove; 16. Guide rod; 17. Cable; 18. Guide wheel; 19. Wheel seat; 20. Base; 21. Hinge seat; 22. First support; 23. Pin; 24. Connecting rod; 25. Hydraulic cylinder; 26. Second support; 27. Ball groove; 28. Ball bearing; 29. ​​Opening groove; 30. Upper truncated cone plate; 31. Lower truncated cone plate; 32. Central shaft; 33. First elastic support device; 34. Second spring support device; 35. First crossbeam; 36. Second crossbeam; 37. First folding plate; 38. Second folding plate. Detailed Implementation

[0027] like Figures 1-7 As shown, this invention discloses a rebar spacing control tool, comprising a bottom support frame 1 and multiple sets of fixed and adjustable limiting components that are detachably installed along the transverse direction of the bottom support frame 1. The bottom support frame 1 has a large rectangular structure and can be directly erected on the ground. Each set of fixed and adjustable limiting components is evenly spaced along the longitudinal direction of the bottom support frame 1. This embodiment has 5 sets of fixed and adjustable limiting components, with 3 components in each set. Thus, 15 fixed and adjustable limiting components are installed in a rectangular array on the bottom support frame 1. Those skilled in the art will understand that multiple sets of fixed and adjustable limiting components need to be selected according to the number of rebars 9, and the number of components in each set can also be adjusted according to the quantity.

[0028] Furthermore, the fixed adjustment limiting component disclosed in this invention includes a fixed limiting rod 2 installed on the bottom support frame 1. The fixed limiting rod 2 is cylindrical in shape. The lower end of the fixed limiting rod 2 is connected to the bottom support frame 1, and the upper end extends upward in the vertical direction. The function of the fixed limiting rod 2 is to initially position the lateral position of the reinforcing bar 9 to facilitate the manufacturing and installation of the reinforcing bar cage 9.

[0029] As a further improvement of the present invention, a strip-shaped adjusting main plate 3 is installed on the upper side of the bottom support frame 1. The plane of the adjusting main plate 3 is parallel to the horizontal plane, and the length direction of the adjusting main plate 3 extends laterally. A sliding groove 4 is provided on the adjusting main plate 3 along its extension direction. A sliding rod 5 is slidably arranged in the sliding groove 4. A locking member 6 is connected to the upper end of the sliding rod 5. The locking member 6 is a nut, and the nut is threadedly connected to the upper end of the sliding rod 5 to facilitate fixing the position of the sliding rod 5.

[0030] Specifically, the lower end of the slide bar 5 is connected to a movable limiting rod 7 and a limiting plate 8. The limiting plate 8 is located between the movable limiting rod 7 and the adjusting main plate 3 to prevent obstruction of the rotational connection of the movable limiting rod 7. The movable limiting rod 7 extends downward in the vertical direction and cooperates with the horizontally arranged fixed limiting rods 2 one by one. The movable limiting rod 7 and the fixed limiting rods 2 are separated to form a horizontal limiting space for the reinforcing bar 9. A displacement driving device for controlling the longitudinal displacement of the adjusting main plate 3 is installed on the bottom support frame 1. The displacement driving device can also be replaced by manual operation, which can be selected as needed.

[0031] In practical use, the displacement drive device is activated to control the adjustment main board 3 and the movable limit rod 7 connected to it to move along the longitudinal direction of the reinforcing bar 9. At this time, the movable limit rod 7 cooperates with the fixed limit rod 2 of the first row to ensure the spacing of the front end of the reinforcing bar 9. When the movable limit rod 7 passes through the fixed limit rod 2 of the same set of fixed adjustment limit parts in the longitudinal direction, the spacing position of the rear end of the reinforcing bar 9 can be determined by the limiting effect of the movable limit rod 7 and the fixed limit rod 2. Thus, the spacing of the reinforcing bar 9 in the entire longitudinal direction is guaranteed, avoiding the problem of insufficient spacing qualification rate caused by using conventional planning method. It not only facilitates construction, but can also be reused to save costs.

[0032] In this embodiment, the bottom support frame 1 includes multiple parallel and spaced horizontal beams 10 and longitudinal beams 11 perpendicularly connected to the horizontal beams 10. The horizontal beams 10 and longitudinal beams 11 are arranged alternately to form the bottom support frame 1. The longitudinal beams 11 and the horizontal beams 10 are detachably connected. The longitudinal beams 11 can also be composed of multiple beams spliced ​​along the longitudinal direction, which can be selected according to the actual length of the reinforcing bars 9. The bottom of the horizontal beams 10 is provided with several slots 12 for positioning the longitudinal beams 11, which facilitates positioning and installation, thereby improving the standard and construction efficiency.

[0033] In this embodiment, a track beam 13 is fixed on the crossbeam 10. The track beam 13 mainly guides the movement of the main regulating plate 3. The track beam 13 is detachably connected to the crossbeam 10. A guide groove is provided on the track beam 13. The guide groove can be a through T-shaped groove, which can be used to limit the movement of the main regulating plate 3 and prevent it from coming off. As a further improvement of this embodiment, the guide groove includes an inclined guide groove 14 and a straight guide groove 15 connected to the inner end of the inclined guide groove 14. The inclination direction of the inclined guide groove 14 corresponds to the direction of the movable limiting rod 7 pointing to the side of the fixed limiting rod 2. A guide rod 16 is fixed to the lower end of the main regulating plate 3, and the guide rod 16 is slidably disposed in the guide groove. By setting the inclined guide groove 14, when the guide rod 16 initially corresponds to the outer end of the inclined guide groove 14, the movable limiting rod 7 is located at the farthest position from the fixed limiting rod 2. This facilitates the installation of the movable limiting rod 7 and prevents the problem of the movable limiting rod 7 not being able to be installed due to the installation error of the reinforcing bar 9, thereby improving the convenience of construction.

[0034] In this embodiment, the displacement driving device includes a cable 17, a guide wheel 18, a wheel seat 19, and a winch. The guide wheel 18 is mounted on the track beam 13 via the wheel seat 19. The guide wheel 18 is located at the end of the straight guide groove 15 away from the inclined guide groove 14. One end of the cable 17 is connected to the guide rod 16, and the other end of the cable 17 is connected to the winch after being guided by the guide wheel 18. The cooperation between the winch and the guide wheel 18 can initially tension the cable 17. When it is necessary to move the guide rod 16, the winch is started to pull the guide rod 16 along the guide groove. Movement control can be achieved on the track beam 13, which is convenient to operate, eliminates the need for additional positioning and guiding structures, and saves construction costs.

[0035] In this embodiment, the bottom of the fixed limiting rod 2 is rotatably connected to the base 20. The base 20 is simultaneously connected to a hinge seat 21 and a first support 22. The cross-section of the beam 10 is L-shaped, and its vertical surface can be easily detachably connected to the hinge seat 21. Different spacings of the base 20 and hinge seat 21 can be set as needed. The base 20 is hinged to the bottom support frame 1 via the hinge seat 21. A pin 23 is hinged inside the first support 22. The pins 23 of the same set of fixed adjusting limiting components are simultaneously connected to a connecting rod 24. The connecting rod 24 is hinged to one end of a hydraulic cylinder 25, and the other end of the hydraulic cylinder 25 is hinged to a second support 26. The second support 26 is mounted on the bottom support frame 1. In this embodiment, by setting the hydraulic cylinder 25, the position of the fixed limiting rod 2 can be further adjusted to accommodate errors in the reinforcing bar 9 or other installation errors, thereby further satisfying the requirement for controlling the pass rate of the reinforcing bar 9 spacing. By setting the connecting rod 24, synchronous control of different fixed limit rods 2 in the same group can be achieved, so that the deflection between each group of bases 20 can be controlled synchronously, which is convenient for adjustment.

[0036] In this embodiment, a ball groove 27 is provided at the bottom of the base 20, and a ball bearing 28 is installed in the ball groove 27. The base 20 rolls with the bottom support frame 1 through the ball bearing 28. By setting the ball bearing 28 for support, the movement of the base 20 is not hindered, while the fixed limiting rod 2 is also provided with vertical support force, reducing the vertical force on the hinge seat 21 and increasing the structural strength.

[0037] In this embodiment, the fixed limiting rod 2 has an opening slot 29 in the middle. An upper truncated cone plate 30 and a lower truncated cone plate 31 are coaxially installed within the opening slot 29. A central shaft 32 is rotatably mounted at the center of the fixed limiting rod 2, and the central shaft 32 is rotatably connected to both the upper truncated cone plate 30 and the lower truncated cone plate 31. The upper end of the upper truncated cone plate 30 is connected to the fixed limiting rod 2 via a first elastic support device 33, and the lower end of the lower truncated cone plate 31 is connected to the limiting rod via a second elastic support device. The upper truncated cone plate 30 and the lower truncated cone plate 31 form a vertical limiting space for the reinforcing bar 9, facilitating the positioning of the reinforcing bar 9 and simplifying construction. The elastic support device uses a spring, which provides elastic support to the truncated cone plate, thus elastically compressing the reinforcing bar 9 and reducing the possibility of jamming during the adjustment of the reinforcing bar 9's position.

[0038] In this embodiment, the crossbeam 10 includes a first crossbeam 35 and a second crossbeam 36, with one end of the first crossbeam 35 and the second crossbeam 36 pivotally connected to each other. The adjusting main plate 3 includes a first folding plate 37 and a second folding plate 38, with one end of the first folding plate 37 and the second folding plate 38 pivotally connected to each other. Both the first folding plate 37 and the second folding plate 38 are provided with sliding grooves 4. This embodiment allows for free folding of the crossbeam 10 and the adjusting main plate 3 according to the length of the construction segment, enabling free matching of different steel bar spacings 9 for different box culverts, thus improving the control effect of steel bar spacing 9.

[0039] To further improve the embodiments of the present invention, the main adjustment plate 3 of the present invention is provided with scale markings along its entire length, with the smallest unit of scale being millimeters and each 1 centimeter constituting a large scale. This facilitates the identification and adjustment of the spacing range of the reinforcing bars 9.

[0040] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of the present invention.

Claims

1. A tool for controlling the spacing of reinforcing bars during construction, characterized in that: The device includes a bottom support frame and multiple sets of fixed and adjustable limiting components that are detachably installed laterally along the bottom support frame. Each set of fixed and adjustable limiting components is evenly spaced along the longitudinal direction of the bottom support frame. Each fixed and adjustable limiting component includes a fixed limiting rod installed on the bottom support frame, extending upwards vertically. A strip-shaped adjusting main plate is installed on the upper side of the bottom support frame, extending laterally. A groove is formed on the adjusting main plate along its extension direction, and a sliding rod is slidably disposed within the groove. A locking element is connected to the upper end of the sliding rod, and a movable limiting rod and a limiting plate are connected to the lower end of the sliding rod. The limiting plate is located between the movable limiting rod and the adjusting main plate. The movable limiting rod extends downwards vertically, and each movable limiting rod cooperates with one of the laterally arranged fixed limiting rods. The movable limiting rod and the fixed limiting rod are spaced apart to form a lateral limiting space for the reinforcing bar. A displacement driving device for controlling the longitudinal displacement of the adjusting main plate is installed on the bottom support frame. The bottom support frame includes multiple parallel and spaced crossbeams and longitudinal beams perpendicularly connected to the crossbeams. The longitudinal beams and crossbeams are detachably connected. Several slots for positioning the longitudinal beams are opened at the bottom of the crossbeams. A track beam is fixed on the crossbeam. The track beam is detachably connected to the crossbeam. A guide groove is opened on the track beam. The guide groove includes an inclined guide groove and a straight guide groove communicating with the inner end of the inclined guide groove. The inclination direction of the inclined guide groove corresponds to the direction of the movable limiting rod pointing towards the fixed limiting rod. A guide rod is fixed at the lower end of the adjusting main plate. The guide rod is slidably disposed in the guide groove.

2. The rebar spacing control tool according to claim 1, characterized in that: The displacement driving device includes a cable, a guide wheel, a wheel seat, and a winch. The guide wheel is mounted on the track beam via the wheel seat. The guide wheel is located at the end of the straight guide groove away from the inclined guide groove. One end of the cable is connected to the guide rod, and the other end of the cable is connected to the winch after being guided by the guide wheel.

3. The rebar spacing control tool according to claim 1, characterized in that: The bottom of the fixed limiting rod is rotatably connected to the base. The base is simultaneously connected to a hinge seat and a first support. The base is hinged to the bottom support frame through the hinge seat. A pin is hinged inside the first support. The pins of the same set of fixed adjusting limiting components are simultaneously connected to a connecting rod. The connecting rod is hinged to one end of the hydraulic cylinder. The other end of the hydraulic cylinder is hinged to a second support. The second support is installed on the bottom support frame.

4. The rebar spacing control tool according to claim 3, characterized in that: The base has a ball groove at its bottom, and a ball bearing is installed in the ball groove. The base rolls in conjunction with the bottom support frame through the ball bearing.

5. A construction control tool for rebar spacing according to any one of claims 1-4, characterized in that: The fixed limiting rod has an opening slot in the middle, and an upper truncated cone plate and a lower truncated cone plate are coaxially installed in the opening slot. A central shaft is rotatably provided at the center of the fixed limiting rod, and the central shaft is rotatably connected to both the upper and lower truncated cone plates. The upper end of the upper truncated cone plate is connected to the fixed limiting rod through a first elastic support device, and the lower end of the lower truncated cone plate is connected to the limiting rod through a second elastic support device. The upper and lower truncated cone plates are separated to form a vertical limiting space for the reinforcing bars.

6. A construction control tool for rebar spacing according to any one of claims 1-4, characterized in that: The crossbeam includes a first crossbeam and a second crossbeam, with one end of the first crossbeam and the second crossbeam pivotally connected to each other. The main adjustment plate includes a first folding plate and a second folding plate, with one end of the first folding plate and the second folding plate pivotally connected to each other. Both the first folding plate and the second folding plate are provided with sliding grooves.

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