Constructional column top joint bar device and construction method

Abstract

The invention provides a constructional column top joint bar device and a construction method. The constructional column top joint bar device comprises two beam bottom formworks, two beam side plates installed on the two beam bottom formworks, a movable cover die arranged between the two beam bottom formworks and two steel formworks with one ends movably inserted into the movable cover die in a sliding mode. The two double-faced adhesive tapes are arranged between the two steel formworks and the two beam side plates, the inserting holes are symmetrically formed in the two steel formworks respectively, the reinforcing steel bar fastening assemblies are symmetrically fixed to the bottoms of the two steel formworks respectively and correspond to the inserting holes in a one-to-one mode, and the reinforcing steel bar fastening assemblies are connected with the two beam side plates. According to the constructional column top steel bar inserting device and the construction method, through mutual cooperation of the arranged steel bar fastening assembly, the telescopic fixing piece and the adjusting assembly, constructional column steel bars of various specifications are achieved, positioning is accurate, slurry leakage caused by pre-burying of the constructional column top steel bars is reduced, dismounting is convenient and easy, and the construction efficiency is improved. And the template damage caused by the top joint bar is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of wall structure casting, and in particular to a structural column top reinforcing bar insertion device and a construction method. Background Art

[0002] Structural columns are indispensable earthquake-resistant components in current house construction. The construction quality of structural columns directly affects the earthquake-resistant effect of secondary structures. The steel bars in the structural columns are the main load-bearing materials. The quality of steel bar construction is the top priority of structural column construction quality control.

[0003] At present, there are generally two existing methods for the construction of structural column reinforcement: one is the post-embedded reinforcement technology, which is a construction method that makes holes at the bottom of the beam or slab at a later stage and injects reinforcement glue into the holes to make the reinforcement and the main structure firmly connected. However, during the post-embedded reinforcement process, it is necessary to drill holes, which can easily hit the reinforcement in the component, resulting in inaccurate hole position or insufficient hole depth, and may even damage the installation pipeline. The top reinforcement of the structural column is easy to fall off during the process of glue injection and reinforcement insertion, and the glue flows out, resulting in the reinforcement depth and bonding strength not meeting the requirements, which greatly affects the construction quality; the other is the cast-in-place pre-embedded reinforcement technology, which is to embed the structural column reinforcement by drilling holes in the formwork. However, drilling holes in the formwork can easily cause concrete leakage, quality problems such as honeycomb exposed reinforcement at the bottom of the beam or slab, and displacement of the reinforcement during the vibration process; and when the formwork is removed, the deformation of the reinforcement makes it difficult to remove the formwork or damages the formwork during removal.

[0004] In the prior art, patent CN107083804B: A method for inserting reinforcement in a wall structural column provides a method for inserting reinforcement in a wall structural column, which avoids the post-embedded reinforcement of the structural column. However, this method uses steel plates to fix the openings, and the steel plate consumption is large when the specifications of the structural column and the steel bar are large; the limit bars are welded to the main bars, which is difficult to remove and easily damages the concrete at the bottom of the component, and it is not easy to use the steel plates in a turnover manner.

[0005] In the prior art, patent CN109372191B: A structural column steel bar locator device provides a structural column steel bar locator device, which solves the problem of accurately fixing the position of the embedded dowel bars. However, the embedded bars need to be punched on the template, and multiple holes need to be punched when the diameter of the steel bar changes, which is easy to leak slurry. The cement slurry is easy to flow into the receiving tube along the steel bar, causing blockage. Summary of the invention

[0006] The purpose of the present invention is to provide a structural column top reinforcing bar insertion device and a construction method to solve the above problems.

[0007] In order to achieve the above-mentioned purpose, the present invention provides a structural column top reinforcing bar insertion device, comprising: two beam bottom templates, two beam side plates installed on the two beam bottom templates, a movable sleeve template arranged between the two beam bottom templates, two steel templates with one end movably slidably inserted into the movable sleeve template, two double-sided adhesive tapes arranged between the two steel templates and the two beam side plates, a plurality of insertion holes symmetrically arranged on the two steel templates, a plurality of steel bar fastening assemblies symmetrically fixed to the bottoms of the two steel templates and corresponding to the plurality of insertion holes, a plurality of preset inserted bars respectively inserted into the plurality of insertion holes and the plurality of steel bar fastening assemblies, two telescopic fixings installed on the two steel templates and the plurality of fixing assemblies, an adjusting assembly installed at the bottom of the movable sleeve template, a fixing rod arranged at the bottom of the adjusting assembly, stirrups tied to the lower ends of the plurality of inserted bars, and two connecting rods vertically fixedly connected to the fixing rod in the middle and connected to the stirrups at both ends, wherein

[0008] The plurality of steel bar fastening assemblies are suitable for ensuring the insertion stability of the plurality of preset inserted steel bars in the plurality of inserted holes;

[0009] The two telescopic fixing members are suitable for ensuring the stability of the connection between the two steel templates and the movable sleeve membrane after adjustment;

[0010] The adjustment component is suitable for controlling the angle of the fixing rod, and then controlling a plurality of the preset dowel bars to adjust their angles in cooperation with the connecting frame.

[0011] Further, the steel bar fastening assembly includes a fixed shell fixed to the lower surface of the steel formwork, a fixed groove provided on the fixed shell and corresponding to the jack, an adjustable bidirectional screw rotatably connected to the fixed shell, a guide rod fixedly connected to the fixed shell, one end of which is respectively threadedly connected to the two ends of the adjustable bidirectional screw and the other end of which is movably sleeved on the guide rod, two first clamping blocks symmetrically arranged in the fixed groove, and two control rods one end of which is respectively fixedly connected to the two regulating blocks and the other end of which is respectively rotatably connected to the two first clamping blocks and movably installed on the fixed shell;

[0012] The two first clamping blocks are both against the preset dowel bars.

[0013] Furthermore, the steel bar fastening assembly also includes a rubber pad movably sleeved on the outside of the preset dowel and with the lower end extending into the insertion hole, two fastening screws symmetrically threadedly mounted on the fixing shell, symmetrically arranged in the fixing groove, and two second clamping blocks rotatably connected to the tail ends of the two fastening screws respectively;

[0014] The two second clamping blocks are both against the rubber pad;

[0015] The diameters of the upper ends of the plurality of rubber pads are all larger than the diameters of the plurality of insertion holes, and the lower surfaces of the upper ends of the plurality of rubber pads are respectively against the upper surfaces of the two steel templates.

[0016] Further, the telescopic fixing member includes an adjusting screw sleeve arranged below the movable sleeve mold, two adjustable length screws symmetrically threadedly installed in the adjusting screw sleeve, arranged below one of the steel templates, and four fixing nuts respectively threadedly connected to the two adjustable length screws;

[0017] The four fixing nuts are symmetrically fixed on the two fixing shells on the lower surface of one of the steel templates.

[0018] Further, the adjustment assembly includes a control disk rotatably connected to the lower surface of the movable sleeve mold, a positioning gear ring fixedly sleeved on the control disk, a positioning rack arranged below the movable sleeve mold and meshing with the positioning gear ring, a direction positioning member arranged on the movable sleeve mold and the positioning rack, an angle adjustment semi-ring fixedly connected to the lower surface of the control disk, a movable groove provided in the angle adjustment semi-ring, and an angle positioning member arranged on the angle adjustment semi-ring and the fixed rod;

[0019] The upper end of the fixing rod is arranged in the movable groove and is rotatably connected with the angle adjustment half ring.

[0020] Furthermore, the direction positioning member includes a control seat fixedly connected to the lower surface of the movable sleeve mold, a control groove provided in the control seat and for the positioning rack to move, two return springs symmetrically arranged in the control groove, a pull rod fixed to the positioning rack, two slide grooves symmetrically provided on the control seat and for the two ends of the pull rod to move, a positioning screw threadedly installed on the control seat, and two positioning screw holes provided on the positioning rack and adapted to the tail end of the positioning screw;

[0021] The two ends of the return spring are fixedly connected to the positioning rack and the inner wall of the control groove respectively.

[0022] Furthermore, the angle positioning member includes a positioning hole formed at the upper end of the fixing rod, a plurality of adjustment holes formed at equal intervals on the angle adjustment half ring, and a positioning pin slidably inserted into the positioning hole and two of the adjustment holes.

[0023] Furthermore, the two steel formworks are fixedly connected with fixing plates, and the two fixing plates are detachably fixedly connected to the two beam side plates through long nails.

[0024] Furthermore, the lower surfaces of the two steel templates are symmetrically provided with length scale grooves, and the lower surface of the movable sleeve mold and the angle adjustment semi-ring are provided with angle scale grooves.

[0025] A construction method for inserting reinforcement at the top of a structural column specifically comprises the following steps:

[0026] S1. Accurately locate the structural column components by measuring the layout mark and mark the position of the structural column components;

[0027] S2. Install two beam bottom templates along the measured lines, leave a gap at the structural column, and install two beam side plates at the ends of the two beam bottom plates;

[0028] S3. Take two steel templates, and make holes at several corners of the protruding parts of the two steel templates. The hole diameter can be the maximum diameter of the actual inserted rebar in the project + 5mm. Then insert the two steel templates into the movable sleeve mold, and inject graphite or lubricating oil into the movable sleeve mold in advance to ensure that the two steel templates can freely expand and contract in the plane. Then weld several steel bar fastening components to the bottom of the two steel templates respectively, and ensure that the fixing grooves in the steel bar fastening components coincide with the centers of the holes on the bottom mold steel plate. Then install two telescopic fixings in the telescopic direction of the bottom of the two steel templates, and weld several fixing nuts in the two telescopic fixings to several steel bar fastening components respectively. Finally, install the adjustment component equipped with a fixing rod at the bottom of the movable sleeve mold to complete the assembly of the rebar insertion device.

[0029] S4. Install the assembled reinforcement device in the gap between the two beam bottom templates. In the beam width direction, the two steel templates can be moved according to the different beam widths to adjust the width of the device. The required width of the device can be accurately adjusted through the length scale groove on the steel template. The device is tightly fitted with the two beam side plates through double-sided tape. The fixing plate and the templates on both sides of the beam are fixed with long nails to ensure that the device is firmly fixed.

[0030] S5. Punch holes in a plurality of rubber pads, the hole diameters of which are the same as the diameters of a plurality of preset dowel bars, and put them on the plurality of preset dowel bars, tie the component reinforcement bars on the plurality of preset dowel bars, and clean the working surface. The plurality of holes provided in the device can be used as cleaning ports to remove debris such as sawdust and slag;

[0031] S6. Insert the preset dowels of the rubber pad into the corresponding sockets, and adjust the rubber pad to make it fit tightly with the steel formwork. After adjusting the length of the preset dowels, fix the preset dowels through the provided steel bar fastening components. When the diameter of the preset dowels changes, they can still be firmly fixed through the steel bar fastening components, without the need to re-drill holes or modify the device.

[0032] S7, fastening the inserted several preset dowel bars at the lower part of the device with stirrups, and connecting and fixing the stirrups with two connecting rods in the device with binding to control the displacement of the free ends of the several preset dowel bars;

[0033] S8. If the structural column needs to have a decorative design and needs to be tilted, the angle of the fixing rod can be controlled by the set adjustment component, thereby affecting and controlling the angles of several preset dowel bars. Before punching the rubber pad, the punching angle also needs to be changed according to the tilt angle of the preset dowel bar to ensure that the rubber pad stably closes the upper end of the plug hole;

[0034] S9. During the concrete pouring process, if the free end of the preset dowel bar is found to be displaced, it can be adjusted through the steel bar fastening assembly to ensure the accurate position of the preset dowel bar after the concrete is finally set;

[0035] S10. After concrete pouring and curing, first remove the beam side panels and then remove this device. After cleaning, it can continue to be used.

[0036] Compared with the prior art, the present invention has the following beneficial effects:

[0037] 1. The structural column top reinforcing bar insertion device and construction method, through the structure of two steel templates that can be movable in the movable sleeve mold, can be conveniently adjusted to adapt to the beam width of the structural column to be constructed, and facilitate the reinforcing bar insertion operation of structural columns of multiple specifications, and cooperate with the telescopic fixing parts to support the two steel templates firmly, and cooperate with the two fixing plates to stably assemble the two steel templates between the two beam side plates and the two beam bottom templates, so as to ensure the stability of the movable sleeve mold and the two steel templates during the concrete pouring process, avoid deformation of the connection between the movable sleeve mold and the two steel templates during the concrete pouring process, effectively improve the stability of a number of preset reinforcing bars during concrete pouring, facilitate the demoulding of the device after the concrete is formed and maintained, so that the device can be used repeatedly, save materials, and be energy-saving and environmentally friendly;

[0038] 2. The top reinforcing bar insertion device and construction method of the structural column can insert a plurality of preset reinforcing bars into a plurality of insertion holes through the provision of a plurality of steel bar fastening components, and after adjusting the vertical insertion depth of a plurality of preset reinforcing bars, stably clamp and fix the plurality of preset reinforcing bars, and adapt to the fixation of preset reinforcing bars of different sizes, cooperate with the fixing rod vertically arranged at the bottom of the movable sleeve mold, tie the stirrups at the lower ends of the plurality of preset reinforcing bars, and tie the two connecting rods welded to the fixing rod to the stirrups, which can effectively restrict the bottom free ends of the plurality of preset reinforcing bars, and effectively avoid the plurality of preset reinforcing bars from being stuck during concrete pouring. Vibrating a number of preset dowel bars to avoid deviation, ensure the stable positioning of a number of preset dowel bars, make the dowel bar construction more stable, simple, effective, beautiful and neat, thereby greatly reducing the problems of structural column steel bar deviation and difficulty in planting steel bars. At the same time, the set steel bar fastening components can complete the stable closure and blocking of a number of plug holes while completing the fixation of a number of preset dowel bars. When vibrating and pouring concrete, leakage of slurry at a number of plug holes is avoided to ensure the pouring quality of concrete, reduce the loss of concrete and save concrete. At the same time, it is convenient to separate the two when removing the mold later, which is convenient for demolding;

[0039] 3. The top reinforcement device and construction method of the structural column adopts this construction method to avoid post-rebar embedding, solve the problem of rework due to inaccurate positioning of the embedded reinforcement, save the cost of rebar embedding construction, ensure the construction quality, avoid the mechanical noise and dust pollution generated by the drilling process during the post-rebar embedding process, and facilitate green construction;

[0040] 4. The top reinforcing bar insertion device and construction method of the structural column can accurately and stably control the rotation and tilt of the adjustable fixing rod through the setting of the adjustment component to adapt to the data of the tilt direction and angle of the structural column. After the rotation direction of the fixing rod is adjusted, the stirrups and the two connecting rods complete the connection between the fixing rod and a number of preset reinforcing bars. The multiple preset reinforcing bars can be controlled to be synchronously adjusted in angle and positioned with the fixing rod. When the inclined reinforcing bars are inserted, it is only necessary to change the punching angle of the rubber pad in the steel bar fastening component in front of the preset reinforcing bars in accordance with the inclined angle of the reinforcing bars, so as to ensure the stable clamping and fixing of the inclined preset reinforcing bars by the steel bar fastening component, thereby meeting the accurate reinforcing bar insertion of the inclined structural column, solving the technical problem of the difficulty in reinforcing bars of the inclined structural column, achieving the technical effect of accurate angle of the inclined reinforcing bars, and having high practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0042] Figure 1 A perspective view of the present invention is shown;

[0043] Figure 2 A partial exploded view of the present invention is shown;

[0044] Figure 3A partial bottom perspective view of the present invention is shown;

[0045] Figure 4 A partial bottom view of the present invention is shown;

[0046] Figure 5 A partial cross-sectional view of the present invention is shown;

[0047] Figure 6 A partially cutaway perspective view of the present invention is shown;

[0048] Figure 7 A partial bottom-up split diagram of the present invention is shown;

[0049] Figure 8 A partial bottom cutaway view of the present invention is shown;

[0050] Fig. 9 A partially exploded perspective view of the present invention is shown.

[0051] In the figures, the same reference numerals denote the same structural elements, wherein:

[0052] 1. Beam bottom formwork; 2. Beam side plate; 3. Movable sleeve formwork; 4. Steel formwork; 5. Double-sided tape; 6. Socket; 7. Rebar fastening assembly; 8. Preset dowel bar; 9. Telescopic fixing piece; 10. Adjustment assembly; 11. Fixing rod; 12. Stirrups; 13. Connecting rod; 14. Fixing shell; 15. Fixing groove; 16. Adjustable bidirectional screw; 17. Guide rod; 18. Control block; 19. First clamping block; 20. Control rod; 21. Rubber pad; 22. Fastening screw; 23. Second clamping block; 24. Adjustment screw Sleeve; 25. Adjustable length screw; 26. Fixing nut; 27. Control plate; 28. Positioning gear ring; 29. ​​Positioning rack; 30. Direction positioning piece; 31. Angle adjustment half ring; 32. Movable groove; 33. Angle positioning piece; 34. Control seat; 35. Control groove; 36. Reset spring; 37. Pull rod; 38. Slide groove; 39. Positioning screw; 40. Positioning screw hole; 41. Positioning hole; 42. Adjustment hole; 43. Positioning pin; 44. Fixing plate; 45. Length scale groove; 46. Angle scale groove. DETAILED DESCRIPTION

[0053] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0054] like Figure 1-9As shown, a structural column top reinforcing bar insertion device and construction method, comprising: two beam bottom templates 1, two beam side plates 2 installed on the two beam bottom templates 1, a movable sleeve template 3 arranged between the two beam bottom templates 1, two steel templates 4 with one end movably inserted into the movable sleeve template 3, two double-sided adhesive tapes 5 arranged between the two steel templates 4 and the two beam side plates 2, a plurality of insertion holes 6 symmetrically arranged on the two steel templates 4, a plurality of steel bar fastening components 7 symmetrically fixed to the bottoms of the two steel templates 4 and corresponding to the plurality of insertion holes 6, a plurality of preset inserted bars 8 respectively inserted into the plurality of insertion holes 6 and the plurality of steel bar fastening components 7, two telescopic fixing members 9 installed on the two steel templates 4 and the plurality of fixing components, an adjusting component 10 installed at the bottom of the movable sleeve template 3, a fixing rod 11 arranged at the bottom of the adjusting component 10, stirrups 12 tied to the lower ends of the plurality of inserted bars, and two connecting rods 13 vertically fixedly connected to the fixing rod 11 in the middle and connected to the stirrups 12 at both ends, wherein

[0055] The plurality of steel bar fastening components 7 are suitable for ensuring the insertion stability of the plurality of preset dowel bars 8 in the plurality of insertion holes 6;

[0056] The two telescopic fixing members 9 are suitable for ensuring the stability of the connection between the two steel templates 4 and the movable sleeve membrane after adjustment;

[0057] The adjusting assembly 10 is suitable for controlling the angle of the fixing rod 11, and then, with the cooperation of the connecting frame, controls the angle adjustment of the plurality of preset dowel bars 8. When in use, the movable sleeve mold 3 and the two steel templates 4 are placed at the structural column position, and the positions of the two steel templates 4 in the movable sleeve mold 3 are controlled so that the width of the movable sleeve mold 3 and the two steel templates 4 are consistent with the width of the structural column to be constructed. The width of the device can be adjusted according to different beam widths, and then, when necessary, it is convenient to construct structural columns of different sizes, and the versatility is strong; then, the plurality of steel bar fastening assemblies 7 can be welded and fixed under the two steel templates 4, and the two telescopic fixing members 9 and the plurality of steel templates 4 are connected. The two steel templates 4 are connected to support the two steel templates 4 to ensure the stability of the positions of the two steel templates 4 after adjustment, and are detachably fixed on the two beam side plates 2 with two fixing plates 44, so that the movable sleeve and the two steel templates 4 can be stably assembled between the two beam bottom templates 1 to ensure the stability of the movable sleeve and the two steel templates 4 during concrete pouring, and the lower ends between the two steel templates 4 and the two beam side plates 2 are bonded and sealed by double-sided adhesive 5 to avoid concrete leakage and improve the forming quality of subsequent structural columns. At the same time, the connection between the movable sleeve and the two steel templates 4 is not easy to deform, which solves the problems of offset of the preset dowel bars 8 of the structural column and easy damage of the steel templates 4, and is convenient for the steel templates after subsequent concrete forming. 4; and after inserting the plurality of preset dowel bars 8 into the plurality of insertion holes 6 and adjusting the vertical insertion depth, the plurality of steel bar fastening components 7 can be used to stably clamp the plurality of preset dowel bars 8 in the insertion holes 6, and can effectively close the plurality of insertion holes 6, thereby ensuring the accurate positioning of the plurality of preset dowel bars 8, which is conducive to ensuring the quality of engineering construction, and is convenient for fixing the preset dowel bars 8 of different specifications, and is highly practical. When the size of the preset dowel bars 8 is changed and fixed, it is not necessary to drill holes in the steel plate mold again, so as to avoid mechanical noise and dust pollution during the drilling process. At the same time, the plurality of steel bar fastening components 7 can be used to complete the clamping and fixing of the plurality of preset dowel bars 8. In order to stably seal the plurality of insertion holes 6, and then avoid leakage of slurry at the plurality of insertion holes 6 during concrete pouring and vibration, which affects the molding quality of the structural column and the subsequent demolding; and after completing the fixing of the plurality of preset dowel bars 8, the stirrups 12 are tied at the lower ends of the plurality of preset dowel bars 8, and the two connecting rods 13 welded to the fixing rod 11 are tied to the stirrups 12. Under the control of the adjustment component 10, the fixing rod 11 can be kept vertical to the movable sleeve mold 3, and then the lower free ends of the plurality of preset dowel bars 8 can be effectively restricted, further avoiding the deviation of the plurality of preset dowel bars 8 during concrete pouring and vibration, and ensuring the stable positioning of the plurality of preset dowel bars 8;If it is necessary to cast and insert bars of a decorative structural column whose bottom and top are not in the same plane, the inclination direction and inclination angle of the structural column are determined first. The adjustment component 10 can accurately and stably control the rotation and inclination of the adjustment fixing rod 11 to adapt to the data of the inclination direction and angle of the structural column. After the rotation direction of the fixing rod 11 is adjusted, the stirrups 12 and the two connecting rods 13 complete the connection between the fixing rod 11 and the plurality of preset insert bars 8. The plurality of preset insert bars 8 can be controlled to adjust the angle and position synchronously with the fixing rod 11. When the inclined insert bars are inserted, it is only necessary to change the punching angle of the rubber pad 21 in the steel bar fastening component 7 before the preset insert bars 8 in accordance with the inclination angle of the insert bars, so as to ensure the stable clamping and fixing of the inclined preset insert bars 8 by the steel bar fastening component 7, meet the accurate insertion of the inclined structural column, solve the technical problem of the difficulty of inserting the inclined structural column, achieve the technical effect of accurate angle of the inclined insert bars, and have high practicality. ;

[0058] Optionally, the steel bar fastening assembly 7 includes a fixed shell 14 fixed to the lower surface of the steel formwork 4, a fixed groove 15 opened on the fixed shell 14 and corresponding to the jack 6, an adjustable bidirectional screw 16 rotatably connected to the fixed shell 14, a guide rod 17 fixedly connected to the fixed shell 14, one end of which is respectively threadedly connected to the two ends of the adjustable bidirectional screw 16, and the other end of which is movably sleeved on the guide rod 17. Two regulating blocks 18, two first clamping blocks 19 symmetrically arranged in the fixed groove 15, and two control rods 20, one end of which is respectively fixedly connected to the two regulating blocks 18, the other end of which is respectively rotatably connected to the two first clamping blocks 19, and movably installed on the fixed shell 14;

[0059] The two first clamping blocks 19 are both against the preset dowel bars 8. After the movable sleeve mold 3 and the two steel templates 4 are assembled between the two beam bottom templates 1, the assembly of the plurality of steel bar fastening components 7 can be carried out, and the plurality of fixed shells 14 are welded to the lower surfaces of the two steel templates 4, and it is ensured that the centers of the plurality of fixed grooves 15 coincide with the centers of the plurality of insertion holes 6. Then, the plurality of preset dowel bars 8 can be respectively inserted into the plurality of fixed grooves 15 through the plurality of insertion holes 6. At this time, the adjustable bidirectional screw 16 can be rotated to control the two regulating blocks 18 to move closer to or farther from each other under the guidance restriction of the guide rod 17, and the two clamping blocks can be pushed or pulled by the two control rods 20 to move closer to or farther from each other, so as to complete the clamping of the preset dowel bars 8 located in the fixed grooves 15. It is convenient to fix and loosen the preset dowel rod 8 after adjusting the vertical insertion depth of the preset dowel rod 8, and adjust the vertical insertion depth of the preset dowel rod 8 as needed. When the diameters of several preset dowel rods 8 change, they can still be stably fixed in several slots without having to drill holes or remodel the two steel templates 4 again. It also ensures that the fixed positions of several preset dowel rods 8 are accurate, which is beneficial to ensuring the quality of engineering construction and solves the problem of rework due to inaccurate dowel rod positioning. During the concrete pouring process, if the free ends of several preset dowel rods 8 are displaced, the two fastening bolts in the corresponding steel bar fastening assembly 7 can be screwed in to a certain length by rotating to stably clamp the preset dowel rod 8, ensuring that the preset dowel rod 8 is accurately positioned after the concrete is finally set.

[0060] Optionally, the steel bar fastening assembly 7 further includes a rubber pad 21 movably sleeved outside the preset dowel bar 8 and with the lower end extending into the insertion hole 6, two fastening screws 22 symmetrically threadedly mounted on the fixing shell 14, symmetrically arranged in the fixing groove 15, and two second clamping blocks 23 rotatably connected to the tail ends of the two fastening screws 22 respectively;

[0061] The two second clamping blocks 23 are both against the rubber pad 21;

[0062] The upper end diameters of the plurality of rubber pads 21 are all larger than the diameters of the plurality of insertion holes 6, and the lower surfaces of the upper ends of the plurality of rubber pads 21 are respectively against the upper surfaces of the two steel templates 4. When the preset dowel bar 8 is initially positioned by the two first clamping blocks 19, the rubber pad 21 sleeved on the outside of the preset dowel bar 8 is controlled to move downward, so that the lower end of the rubber pad 21 passes through the insertion hole 6 and enters the fixing groove 15, and the upper end of the rubber pad 21 can contact the steel template 4 and close the insertion hole 6, thereby When pouring concrete, leakage of slurry at the socket 6 can be avoided, which affects the molding quality of the structural column. At the same time, the two fastening screws 22 can be rotated to push the two second clamping blocks 23 closer to each other and against the rubber pad 21, and with the movement of the two second clamping blocks 23, the lower end of the rubber pad 21 can be clamped to ensure that the position of the rubber pad 21 is stable after the socket 6 is closed, and the rubber pad 21 will not be offset during the concrete pouring and vibration, thereby affecting the closing effect of the socket 6.

[0063] Optionally, the telescopic fixing member 9 includes an adjusting screw sleeve 24 arranged below the movable sleeve mold 3, two adjustable length screws 25 symmetrically threadedly installed in the adjusting screw sleeve 24, arranged below one of the steel templates 4, and four fixing nuts 26 threadedly connected to the two adjustable length screws 25 respectively;

[0064] The four fixing nuts 26 are symmetrically fixed on the two fixing shells 14 on the lower surface of one of the steel templates 4. When the two steel templates 4 are movably displaced from the movable sleeve mold 3 and the length of the movable sleeve mold 3 with the two steel templates 4 is ensured to be consistent with the width of the structural column beam, two fixing nuts 26 can be welded on two of the fixing shells 14 under the two steel templates 4. Then, with the cooperation of the fixing nuts 26, one side of the two fixing shells 14 under the two steel templates 4 is rotatably threadedly connected with an adjustable length screw rod 25, and an adjusting threaded sleeve is threadedly installed between the two adjustable length threaded rods under the two steel templates 4 to complete the assembly of a single telescopic fixing member 9 under the movable sleeve mold 3. With the cooperation of the two telescopic fixing members 9, the bottom of the two steel templates 4 can be effectively supported, thereby ensuring the horizontality of the two steel templates 4, so as to improve the stability of the two steel templates 4 during concrete pouring and vibration, avoid deformation at the connection between the movable sleeve mold 3 and the two steel templates 4, affect the subsequent demolding, facilitate the turnover of the steel templates 4, save materials, and be energy-saving and environmentally friendly.

[0065] Optionally, the adjustment assembly 10 includes a control disk 27 rotatably connected to the lower surface of the movable sleeve mold 3, a positioning toothed ring 28 fixedly sleeved on the control disk 27, a positioning rack 29 arranged below the movable sleeve mold 3 and meshing with the positioning toothed ring 28, a direction positioning member 30 arranged on the movable sleeve mold 3 and the positioning rack 29, an angle adjustment semi-ring 31 fixedly connected to the lower surface of the control disk 27, a movable groove 32 provided in the angle adjustment semi-ring 31, and an angle positioning member 33 arranged on the angle adjustment semi-ring 31 and the fixed rod 11;

[0066] The upper end of the fixing rod 11 is arranged in the movable groove 32 and is rotatably connected with the angle adjustment semi-ring 31. When the normal structural column is cast and the reinforcing bars are inserted, the fixing rod 11 is vertically placed at the bottom of the movable sleeve mold 3 under the control of the angle positioning, and then the displacement of the free ends of the plurality of preset reinforcing bars 8 is effectively limited under the cooperation of the stirrups 12 and the two connecting rods 13, so that the plurality of preset reinforcing bars 8 are kept in a vertical state and stable during the concrete casting, thereby ensuring the quality of the structural column reinforcing bars; and when the bottom and top of some decorative structural columns are not in the same plane, the casting of the decorative structural columns is not carried out. When inserting rebars, the designed inclination direction of the structural column and the set direction positioning member 30 can be used to adjust and control the movable direction of the fixed rod 11 to the required inclination direction, and then the connecting rod 13 is welded and connected with the stirrup 12. Finally, the set angle positioning member 33 is used to rotate the fixed rod 11 to drive the angle of several preset inserted rebars 8 to be adjusted to the same inclination angle as the designed structural column, and then positioning is performed, thereby meeting the accurate insertion of rebars in the inclined structural column, solving the technical problem of the difficulty in inserting rebars in the inclined structural column, and achieving the technical effect of precise angle of inclined inserted rebars.

[0067] Optionally, the direction positioning member 30 includes a control seat 34 fixedly connected to the lower surface of the movable sleeve mold 3, a control groove 35 provided in the control seat 34 and for the positioning rack 29 to move, two return springs 36 symmetrically arranged in the control groove 35, a pull rod 37 fixed to the positioning rack 29, two slide grooves 38 symmetrically provided on the control seat 34 and for the two ends of the pull rod 37 to move, a positioning screw 39 threadedly mounted on the control seat 34, and two positioning screw holes 40 provided on the positioning rack 29 and adapted to the tail end of the positioning screw 39;

[0068] The two ends of the reset spring 36 are fixedly connected to the positioning rack 29 and the inner wall of the control groove 35 respectively. When inserting reinforcement of the inclined structural column, it is necessary to pull the pull rod 37 first according to the tilting angle of several preset inserted reinforcements 8 to control the positioning rack 29 to move in the control groove 35, so that it moves away from and releases the limit on the positioning gear ring 28, and at the same time, compress the two reset springs 36, and then the control disk 27 can be rotated, so that the direction in which the fixed rod 11 can be adjusted to be consistent with the direction in which several preset inserted reinforcements 8 need to be tilted, and then the pulling force on the pull rod 37 is released. Under the elastic force of the two reset springs 36, the positioning rack 29 can be pushed to reset and engage the positioning gear disk, so that the control disk 27 can maintain the position after the direction is adjusted.

[0069] The positioning pin 43 is then inserted into the positioning hole 41 and the corresponding two adjustment holes 42, so that the fixed rod 11 drives the plurality of preset dowel bars 8 to maintain their position after rotation, thereby meeting the requirements of the dowel bars of the inclined structural column.

[0070] Optionally, the two steel formworks 4 are fixedly connected with a fixing plate 44, and the two fixing plates 44 are detachably fixedly connected to the two beam side plates 2 by long nails. The fixing plates 44 are welded to the steel formworks 4 and fixedly connected to the beam side plates 2 by long nails. Then, when the concrete is poured, the two steel formworks 4 are ensured to be fixed and stable between the two beam bottom formworks 1, which facilitates the demoulding of subsequent devices.

[0071] Optionally, the lower surfaces of the two steel templates 4 are symmetrically provided with length scale grooves 45, and the lower surface of the movable sleeve mold 3 and the angle adjustment semi-ring 31 are provided with angle scale grooves 46. Through the provided length scale grooves 45, with the cooperation of the length scale grooves 45 on the two steel templates 4, it is convenient for the user to accurately control the length of the two steel templates 4 pulled out in the movable sleeve mold 3, and then the required width of the device can be accurately adjusted according to the beam width. When constructing special structural columns and it is necessary to control the inclination of several preset dowels 8, the two angle scale grooves 46 can ensure the accuracy of the rotation angle of the control panel 27 and the fixed rod 11, and then drive several preset dowels 8 to be synchronously and accurately adjusted to the set angle, so as to meet the dowel requirements and quality of the structural columns.

[0072] A construction method for inserting reinforcement at the top of a structural column specifically comprises the following steps:

[0073] S1. Accurately locate the structural column components by measuring the layout mark and mark the position of the structural column components;

[0074] S2, install two beam bottom templates 1 through the measured lines, leave a gap at the structural column, and install two beam side plates 2 at the ends of the two beam bottom plates;

[0075] S3, take two steel templates 4, and open sockets 6 at several corners of the protruding parts of the two steel templates 4, the hole diameter can be the maximum diameter of the actual inserted steel bar in the project + 5mm, then insert the two steel templates 4 into the movable sleeve mold 3, and inject graphite or lubricating oil into the movable sleeve mold 3 in advance to ensure that the two steel templates 4 can freely expand and contract in the plane, then weld several steel bar fastening components 7 to the bottom of the two steel templates 4 respectively, and ensure that the fixing groove 15 in the steel bar fastening component 7 coincides with the center of the socket 6 on the bottom mold steel plate, then install two telescopic fixings 9 in the telescopic direction of the bottom of the two steel templates 4, and weld several fixing nuts 26 in the two telescopic fixings 9 to several steel bar fastening components 7 respectively, and finally install the adjustment component 10 equipped with the fixing rod 11 at the bottom of the movable sleeve mold 3 to complete the assembly of the reinforcing bar device;

[0076] S4. Install the assembled reinforcing bar device in the gap between the two beam bottom templates 1. In the beam width direction, the two steel templates 4 can be moved according to the different beam widths to adjust the width of the device. The required width of the device can be accurately adjusted through the length scale groove 45 on the steel template 4. The device is tightly fitted with the two beam side plates 2 through the double-sided tape 5. The fixing sheet 44 is fixed to the templates on both sides of the beam with long nails to fix the device firmly.

[0077] S5, punch holes in a plurality of rubber pads 21, the hole diameters of which are the same as the diameters of a plurality of preset dowel bars 8, and put them on the plurality of preset dowel bars 8, tie the component reinforcement bars on the plurality of preset dowel bars 8, and clean the working surface. The plurality of insertion holes 6 provided in the device can be used as cleaning ports to remove debris such as sawdust and slag;

[0078] S6. Insert the preset dowel bar 8 of the rubber pad 21 into the corresponding insertion hole 6, and adjust the rubber pad 21 to make it fit tightly with the steel template 4. After adjusting the length of the preset dowel bar 8, fix the preset dowel bar 8 through the provided steel bar fastening components 7. When the diameter of the preset dowel bar 8 changes, it can still be firmly fixed through the steel bar fastening components 7, without the need to re-drill holes or modify the device;

[0079] S7, the inserted several preset dowel bars 8 are fastened at the lower part of the device by using stirrups 12, and the stirrups 12 are connected and fixed to two connecting rods 13 in the device by binding, so as to control the displacement of the free ends of the several preset dowel bars 8;

[0080] S8. If the structural column needs to have a decorative design and needs to be tilted, the angle of the fixing rod 11 can be controlled by the adjustment component 10, thereby affecting and controlling the angles of the preset dowel bars 8. Before punching the rubber pad 21, the punching angle also needs to be changed according to the tilt angle of the preset dowel bar 8 to ensure that the rubber pad 21 stably closes the upper end of the insertion hole 6.

[0081] S9. During the concrete pouring process, if the free end of the preset dowel bar 8 is found to be displaced, it can be adjusted by the steel bar fastening assembly 7 to ensure that the preset dowel bar 8 is in the correct position after the concrete is finally set;

[0082] S10. After the concrete is poured and cured, the beam side plate 2 is first removed, and then the device is removed. After cleaning, it can continue to be used.

[0083] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A structural column top reinforcing bar insertion device, characterized in that: include: Two beam bottom templates (1), two beam side plates (2) mounted on the two beam bottom templates (1), a movable sleeve template (3) arranged between the two beam bottom templates (1), two steel templates (4) with one end movably inserted into the movable sleeve template (3), two double-sided adhesive tapes (5) arranged between the two steel templates (4) and the two beam side plates (2), a plurality of insertion holes (6) symmetrically arranged on the two steel templates (4), and a plurality of steel bar fastening groups symmetrically fixed to the bottoms of the two steel templates (4) and corresponding to the plurality of insertion holes (6) one by one. The invention comprises a plurality of pre-set dowel bars (8) respectively inserted into the plurality of the insertion holes (6) and the plurality of the steel bar fastening components (7), two telescopic fixing components (9) installed on the two steel templates (4) and the plurality of the fixing components, an adjustment component (10) installed at the bottom of the movable sleeve mold (3), a fixing rod (11) arranged at the bottom of the adjustment component (10), stirrups (12) tied to the lower ends of the plurality of dowel bars, and two connecting rods (13) whose middle parts are vertically fixedly connected to the fixing rod (11) and whose two ends are connected to the stirrups (12), wherein The plurality of steel bar fastening assemblies (7) are suitable for ensuring the insertion stability of the plurality of preset inserted steel bars (8) in the plurality of insertion holes (6); The two telescopic fixing members (9) are suitable for ensuring the stability of the connection between the two steel templates (4) and the movable sleeve membrane after adjustment; The adjustment component (10) is suitable for controlling the angle of the fixing rod (11), and further, with the cooperation of the connecting frame, controls a plurality of the preset dowel bars (8) to adjust the angle.

2. A structural column top reinforcing bar insertion device as claimed in claim 1, characterized in that: The steel bar fastening assembly (7) comprises a fixed shell (14) fixed to the lower surface of the steel formwork (4), a fixed groove (15) provided on the fixed shell (14) and corresponding to the insertion hole (6), an adjustable bidirectional screw (16) rotatably connected to the fixed shell (14), a guide rod (17) fixedly connected to the fixed shell (14), two regulating blocks (18) having one end respectively threadedly connected to the two ends of the adjustable bidirectional screw (16) and the other end movably sleeved on the guide rod (17), two first clamping blocks (19) symmetrically arranged in the fixed groove (15), and two control rods (20) having one end respectively fixedly connected to the two regulating blocks (18) and the other end respectively rotatably connected to the two first clamping blocks (19) and movably mounted on the fixed shell (14); The two first clamping blocks (19) both abut against the preset dowel bars (8).

3. A structural column top reinforcing bar insertion device as claimed in claim 2, characterized in that: The steel bar fastening assembly (7) further comprises a rubber pad (21) movably sleeved on the outside of the preset inserted steel bar (8) and with its lower end extending into the insertion hole (6), two fastening screws (22) symmetrically threadedly mounted on the fixing shell (14), symmetrically arranged in the fixing groove (15), and two second clamping blocks (23) rotatably connected to the tail ends of the two fastening screws (22) respectively; The two second clamping blocks (23) are both in contact with the rubber pad (21); The diameters of the upper ends of the plurality of rubber pads (21) are all larger than the diameters of the plurality of insertion holes (6), and the lower surfaces of the upper ends of the plurality of rubber pads (21) respectively abut against the upper surfaces of the two steel templates (4).

4. A structural column top reinforcing bar insertion device as claimed in claim 3, characterized in that: The telescopic fixing member (9) comprises an adjusting screw sleeve (24) arranged below the movable sleeve mold (3), two adjustable length screws (25) symmetrically threadedly mounted in the adjusting screw sleeve (24), arranged below one of the steel mold plates (4), and four fixing nuts (26) threadedly connected to the two adjustable length screws (25) respectively; The four fixing nuts (26) are symmetrically fixed on the two fixing shells (14) on the lower surface of one of the steel templates (4).

5. A structural column top reinforcing bar insertion device as claimed in claim 4, characterized in that: The adjustment assembly (10) comprises a control disk (27) rotatably connected to the lower surface of the movable sleeve mold (3), a positioning toothed ring (28) fixedly sleeved on the control disk (27), a positioning rack (29) arranged below the movable sleeve mold (3) and meshing with the positioning toothed ring (28), a direction positioning member (30) arranged on the movable sleeve mold (3) and the positioning rack (29), an angle adjustment semi-ring (31) fixedly connected to the lower surface of the control disk (27), a movable groove (32) provided in the angle adjustment semi-ring (31), and an angle positioning member (33) arranged on the angle adjustment semi-ring (31) and the fixed rod (11); The upper end of the fixing rod (11) is arranged in the movable groove (32) and is rotatably connected to the angle adjustment half ring (31).

6. A structural column top reinforcing bar insertion device as claimed in claim 5, characterized in that: The direction positioning member (30) includes a control seat (34) fixedly connected to the lower surface of the movable sleeve mold (3), a control groove (35) provided in the control seat (34) and allowing the positioning rack (29) to move, two return springs (36) symmetrically arranged in the control groove (35), a pull rod (37) fixed on the positioning rack (29), two slide grooves (38) symmetrically provided on the control seat (34) and allowing the two ends of the pull rod (37) to move, a positioning screw (39) threadedly mounted on the control seat (34), and two positioning screw holes (40) provided on the positioning rack (29) and adapted to the tail end of the positioning screw (39); The two ends of the return spring (36) are respectively fixedly connected to the positioning rack (29) and the inner wall of the control groove (35).

7. A structural column top reinforcing bar insertion device as claimed in claim 6, characterized in that: The angle positioning member (33) comprises a positioning hole (41) formed at the upper end of the fixing rod (11), a plurality of adjustment holes (42) formed at equal intervals on the angle adjustment half ring (31), and a positioning pin (43) fitted and slidably inserted into the positioning hole (41) and two of the adjustment holes (42).

8. A structural column top reinforcing bar insertion device as claimed in claim 1, characterized in that: The two steel formworks (4) are both fixedly connected with fixing plates (44), and the two fixing plates (44) are both detachably fixedly connected to the two beam side plates (2) via long nails.

9. A structural column top reinforcing bar insertion device as claimed in claim 6, characterized in that: The lower surfaces of the two steel templates (4) are symmetrically provided with length scale grooves (45), and the lower surface of the movable sleeve mold (3) and the angle adjustment half ring (31) are provided with angle scale grooves (46).

10. A construction method for inserting reinforcement at the top of a structural column, characterized in that: The specific steps include: S1. Accurately locate the structural column components by measuring the layout mark and mark the position of the structural column components; S2. Install two beam bottom templates (1) along the measured lines, leave a gap at the structural column, and install two beam side plates (2) at the ends of the two beam bottom plates; S3, take two steel templates (4), open several corners of the protruding parts of the two steel templates (4) to form insertion holes (6), the hole diameter can be the maximum diameter of the actual inserted steel bar in the project + 5mm, then insert the two steel templates (4) into the movable sleeve mold (3), and inject graphite or lubricating oil into the movable sleeve mold (3) in advance to ensure that the two steel templates (4) can freely expand and contract in the plane, then weld several steel bar fastening components (7) to the bottom of the two steel templates (4), and ensure that the fixing grooves (15) in the steel bar fastening components (7) coincide with the centers of the insertion holes (6) on the bottom mold steel plate, then install two telescopic fixings (9) in the telescopic direction of the bottom of the two steel templates (4), and weld several fixing nuts (26) in the two telescopic fixings (9) to several steel bar fastening components (7), and finally install the adjustment component (10) equipped with a fixing rod (11) at the bottom of the movable sleeve mold (3) to complete the assembly of the reinforcing bar device; S4. Install the assembled reinforcing bar device in the gap between the two beam bottom templates (1). In the beam width direction, the two steel templates (4) can be moved according to the different beam widths to adjust the width of the device. The length scale groove (45) on the steel template (4) can be used to accurately adjust the required width of the device. The device is tightly fitted with the two beam side plates (2) through the double-sided adhesive tape (5). The fixing plate (44) is fixed to the templates on both sides of the beam with long nails to ensure that the device is firmly fixed. S5, punching holes in a plurality of rubber pads (21) with the hole diameters being the same as the diameters of a plurality of preset dowel bars (8), and putting the holes on the plurality of preset dowel bars (8), tying the component reinforcement bars on the plurality of preset dowel bars (8), and cleaning the working surface. The plurality of insertion holes (6) provided in the device can be used as cleaning ports to remove debris such as sawdust and slag; S6, inserting the preset dowel bar (8) of the rubber pad (21) into the corresponding insertion hole (6), and adjusting the rubber pad (21) so that it fits tightly with the steel template (4), and after adjusting the length of the preset dowel bar (8), fixing the preset dowel bar (8) by means of the provided steel bar fastening components (7), when the diameter of the preset dowel bar (8) changes, it can still be securely fixed by means of the steel bar fastening components (7), without the need to re-drill holes or modify the device; S7, fastening the inserted plurality of preset dowel bars (8) at the lower part of the device with stirrups (12), and connecting and fixing the stirrups (12) and two connecting rods (13) in the device with binding to control the displacement of the free ends of the plurality of preset dowel bars (8); S8. If the structural column needs to have a decorative design and needs to be tilted, the angle of the fixing rod (11) can be controlled by the adjustment component (10), thereby affecting and controlling the angles of the preset dowel bars (8). Before punching the rubber pad (21), the punching angle also needs to be changed according to the tilt angle of the preset dowel bars (8) to ensure that the rubber pad (21) stably seals the upper end of the insertion hole (6); S9. During the concrete pouring process, if the free end of the preset dowel bar (8) is found to be displaced, it can be adjusted through the steel bar fastening assembly (7) to ensure that the preset dowel bar (8) is accurately positioned after the concrete is finally set; S10. After the concrete is poured and cured, the beam side plate (2) is first removed, and then the device is removed. After cleaning, the device can be used again.

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