A prefabricated support type secondary pouring surface uniform reinforcing bar inserting system and a construction method thereof

Abstract

The application discloses a prefabricated support type secondary pouring surface uniform reinforcing bar inserting system and a construction method thereof, and the device comprises a reinforcing bar pre-assembly support which is hinged by a boundary beam, a transverse frame beam and a vertical frame beam, a reinforcing bar locking unit which is equidistantly installed on the vertical frame beam, and a support supporting unit which is arranged at the bottom of the boundary beam and used for supporting the whole support in the air, the reinforcing bar is arranged through the preset support, the support with the reinforcing bar is hoisted to the secondary pouring surface through a crane, the technical problem that the initial setting time of the first pouring concrete is difficult to control in the construction process is solved by adopting the method of laying a horse path and manually inserting a reinforcing bar, manual construction of the suspended reinforcing bar and the horse path is avoided, and the risk of safety accidents is prone to occur, in addition, the support center after hoisting is overlapped with the hidden column reinforcing bar, the support supporting strength is improved, the hidden column reinforcing bar is prevented from falling during pouring, and the positioning accuracy of the steel column foundation embedded part can be improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of secondary pouring surface reinforcing bar insertion, and more particularly to a prefabricated support type secondary pouring surface uniform reinforcing bar insertion system and a construction method thereof. BACKGROUND

[0002] Under the limitation of some specific processes or methods, concrete members need to be poured twice. The insertion of vertical reinforcing bars in the secondary pouring surface is to enhance the shear strength of the horizontal construction joint of the twice-poured concrete, so as to constrain the sliding of the secondary pouring surface when the member is subjected to horizontal force, and to ensure the safety and use function of the building.

[0003] At present, the horizontal construction joint reinforcing bar insertion method commonly used in construction sites needs to pre-hang a horse path above the pouring surface to enable the construction personnel to walk and manually insert the reinforcing bars. In addition, patent CN106759280A discloses a super-long foundation pile foundation reinforcing bar positioning construction method, which belongs to the field of foundation pile reinforcing bar construction in building engineering, and includes the following steps: determining the length and quantity of reinforcing bars → making reinforcing bar fixing supports → installing reinforcing bar fixing supports → fixing reinforcing bar fixing supports → measuring and positioning the center line of reinforcing bar columns → reinforcing bar construction → reinforcing bar elevation control → reinforcing bar fixing → reinforcing bar re-measurement. The construction method increases the production, installation and fixing work of the fixing supports and the surrounding fixing supports, plays a role in positioning construction in actual operation, and has obvious positioning effect, improves the quality, efficiency and safety of the construction process. In addition, patent CN207268047U discloses a vertical reinforcing bar fixing device inserted into a thick plate. The thick plate includes upper and lower skin reinforcing bars, and the vertical reinforcing bar fixing device includes a leg, a frame, a plurality of reinforcing bars and a positioning stirrup. The leg is located at the bottom of the thick plate and connected with the lower skin reinforcing bar. The frame is located above the leg and connected with the leg. The plurality of reinforcing bars are vertically arranged on the frame and along the frame. The reinforcing bars are connected with the frame or the upper skin reinforcing bar. The positioning stirrup is arranged along the outer periphery of the plurality of reinforcing bars and connected with the reinforcing bars. Since each reinforcing bar is connected with the frame or the upper skin reinforcing bar and the positioning stirrup, i.e., each reinforcing bar has two fixing points, the secure fixing of the reinforcing bars is ensured. In addition, the length of the reinforcing bars entering the thick plate is the height of the thick plate minus the height of the leg, i.e., the length of each reinforcing bar saved is about the height of the leg, so the amount of reinforcing bars is reduced, which is conducive to reducing the construction cost.

[0004] The above patent method realizes the accurate insertion of steel bars to some extent, but still has the following technical problems or improvements: (1) The manual steel bar insertion method using the laid horse track needs to strictly control the initial setting time of the first pouring concrete. If the steel bar is inserted too early, the exposed length will not meet the requirements due to the steel bar settlement. On the contrary, if it is too late, it will lead to difficult insertion and the insertion depth will not meet the requirements. In addition, the suspended steel bar erection horse track manual construction is prone to safety accidents. Therefore, after the steel bar pre-layout and positioning, the hoist assisted suspended steel bar insertion method can be considered; (2) Due to the different steel bar layout densities under different construction conditions, the flexibility and convenience of the steel bar pre-installation position adjustment should be considered on the basis of the improvement direction in (1); (3) Due to the large number of steel bars to be installed, if the precast support method is used to determine the position of the steel bar, the position adjustment process of the steel bar installation tooling is extremely tedious, so additional tools can be appropriately added for tooling disassembly and installation. SUMMARY

[0005] In view of the above defects or improvement needs of the prior art, the present application provides a prefabricated support type secondary pouring surface uniform steel bar insertion system and its construction method. The steel bar is arranged through the preset support, and finally the support with the fixed steel bar is hoisted as a whole to the secondary pouring surface by the crane, which solves the technical problem that the initial setting time of the first pouring concrete is difficult to control in the manual steel bar insertion method using the laid horse track, and avoids the risk of safety accidents caused by the suspended steel bar erection horse track manual construction. In addition, the support center after hoisting is overlapped with the hidden column steel bar, thereby improving the support strength and preventing the hidden column steel bar from falling during pouring, and the positioning accuracy of the steel column foundation embedded part can be improved.

[0006] In order to achieve the above-mentioned purpose, according to the first aspect of the present application, a prefabricated support type secondary pouring surface uniform steel bar insertion system comprises:

[0007] The steel bar pre-installation support is hinged by the edge beam, the transverse frame beam and the longitudinal frame beam, the steel bar locking unit is installed equidistantly on the transverse frame beam, and the support support unit is arranged at the bottom of the edge beam for overall suspension of the support. The bottom of the support support unit is fixedly connected with the poured cushion layer on the periphery of the secondary pouring surface, and the steel bar to be inserted is fixedly installed in the steel bar locking unit. The longitudinal frame beam at the center of the steel bar pre-installation support is overlaid on the hidden column steel bar around the steel column.

[0008] The steel bar locking unit comprises a steel bar locking sleeve fixed to the transverse frame beam, a non-slip rubber pad arranged on the inner wall of the steel bar locking sleeve to prevent the steel bar from slipping out, a threaded hole opened in the side wall of the steel bar locking sleeve, and a first top tightening screw threadedly connected with the threaded hole.

[0009] Preferably, the support support unit comprises:

[0010] The vertical support column is fixedly connected to the upper end of the side beam bottom, the flange connecting plate is fixedly connected to the bottom of the vertical support column, and the foundation bolt is used to fixedly connect the flange connecting plate and the poured cushion.

[0011] Preferably, the support unit further comprises:

[0012] The support brace is obliquely installed on the diagonal vertical support column.

[0013] Preferably, the connection between the steel reinforcement locking sleeve and the transverse frame beam is welding.

[0014] Preferably, the connection between the steel reinforcement locking sleeve and the transverse frame beam is detachable.

[0015] Preferably, the detachable connection between the steel reinforcement locking sleeve and the transverse frame beam is realized through a sleeve dismounting assembly, the sleeve dismounting assembly comprises a side connecting block fixed to the side wall of the steel reinforcement locking sleeve, an insertion hole formed in the side connecting block, a female locking buckle inserted into one end of the insertion hole, a threaded hole formed in the other end of the female locking buckle and a second jacking screw in rotational connection with the threaded hole, and a locking push block fixed to the front end of the second jacking screw and used for abutting against the transverse frame beam.

[0016] Preferably, the sleeve auxiliary dismounting unit further comprises:

[0017] The main housing with an open bottom, a handle installed on the top of the main housing, a frame beam clamping entrance formed through the side of the main housing, a powerful magnet installed on the inner surface of the main housing and used for temporarily adsorbing the female locking buckle and the steel reinforcement locking sleeve to prevent falling, and a screw front pushing driving unit for controlling the front pushing movement of the second jacking screw.

[0018] Preferably, the screw front pushing driving unit comprises:

[0019] A rear-stage transmission gear coaxially and fixedly connected to the rear end of the second jacking screw, a sliding connection transmission gear in meshing transmission with both sides of the rear-stage transmission gear, an intermediate transmission gear coaxially and fixedly connected with the sliding connection transmission gear, a front-stage transmission gear arranged between a pair of intermediate transmission gears and in meshing transmission with both of them, and a front pushing driving motor coaxially and fixedly connected with the front-stage transmission gear; the front pushing driving motor is fixedly connected with the main housing.

[0020] According to the second aspect of the present application, a construction method of a prefabricated support type secondary pouring surface uniform reinforcing bar system comprises the following steps:

[0021] S100: According to the construction drawing, the area where the reinforcing bar is needed is measured and laid out, and is expanded by 100-200mm, and the positioning line and control line of the poured cushion are laid out;

[0022] S200: Install the edge beam, adjust the levelness of the edge beam through leveling measurement, install the longitudinal frame beam, and adjust the longitudinal frame beam; install the transverse frame beam, and adjust the transverse frame beam, and complete the assembly of the steel bar pre-assembly support;

[0023] S300: Fix the support unit at the bottom of the steel bar pre-assembly support, and connect the vertical support columns in the same plane by using the inclined support;

[0024] S400: Connect the sleeve auxiliary assembly and disassembly unit and the transverse frame beam according to the reinforcing bar spacing, and insert the steel bar to be inserted into the steel bar locking sleeve;

[0025] S500: The support with the steel bar fixed is hoisted by the crane to the secondary pouring surface, and the support unit is fixed to the poured cushion through the anchor bolt;

[0026] S600: Pour the concrete and vibrate it, wait until the concrete reaches the final setting, loosen the first jacking screw, release the steel bar to be inserted, and use the vertical transport machinery to directly hoist the support to the next type of reinforcing bar area; and perform the turnover.

[0027] Preferably, the S400 further comprises the following steps:

[0028] S401: Hold the handle, first put the concave locking buckle with the second jacking screw into the main cavity, then put the steel bar locking sleeve into it, and ensure that the insertion hole is inserted into one end of the concave locking buckle, and under the action of the strong magnet, ensure that the two will not fall off;

[0029] S402: At the predetermined installation position, the transverse frame beam is clamped into the frame beam clamping entrance, then the device is started, and under the action of the front push driving motor, the front stage transmission gear, the intermediate transmission gear, the sliding transmission gear and the rear stage transmission gear are driven, finally the second jacking screw is rotated in a certain direction, the locking push block in front of the second jacking screw is pressed and abuts against the transverse frame beam, so as to complete the fixed connection of the transverse frame beam and the steel bar locking unit;

[0030] S403: The sleeve auxiliary assembly and disassembly unit is detached, and the installation operation is completed, and vice versa.

[0031] Overall, compared with the prior art, the above technical solutions conceived by the present application can achieve the following beneficial effects:

[0032] 1. The prefabricated support type secondary pouring surface uniform reinforcing bar system of the present application realizes the arrangement of reinforcing bars through pre-set supports, and finally hoists the support with reinforcing bars fixed thereon to the secondary pouring surface by a crane, thereby solving the technical problem that the initial setting time of the first pouring concrete is difficult to control in the construction process using the method of laying a horse path and manually inserting reinforcing bars, and avoiding the risk of safety accidents caused by the manual construction of suspended reinforcing bar erection of a horse path.

[0033] 2. The prefabricated support type secondary pouring surface uniform reinforcing bar system of the present application realizes the detachable connection between the reinforcing bar locking sleeve and the horizontal frame beam through the ingenious combination of the concave locking buckle and the threaded tight top structure, thereby effectively realizing the flexible adjustment of the reinforcing bar arrangement position on the prefabricated support, and meeting the customized application requirements of different reinforcing bar arrangement densities under different construction conditions.

[0034] 3. The prefabricated support type secondary pouring surface uniform reinforcing bar system of the present application effectively solves the technical problem that the position adjustment process of the reinforcing bar installation tooling is extremely tedious if the prefabricated support method is used to determine the position of the reinforcing bar due to the large number of reinforcing bars to be installed, and realizes the convenient disassembly and installation of the sleeve tooling.

[0035] 4. The prefabricated support type secondary pouring surface uniform reinforcing bar system of the present application effectively prevents the adhesion of concrete to the prefabricated support by separately adding a support unit below the prefabricated support, thereby ensuring the subsequent repeated use value of the support; in addition, a strut inclined strut is added to the original support structure, and the support strength of the support unit is improved as a whole by utilizing a triangular structure. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 It is a whole structure schematic diagram of the prefabricated support type secondary pouring surface uniform reinforcing bar system of the embodiment of the present application;

[0037] Figure 2 It is a construction state front view sectional view of the prefabricated support type secondary pouring surface uniform reinforcing bar system of the embodiment of the present application;

[0038] Figure 3 It is a construction state plan view of the prefabricated support type secondary pouring surface uniform reinforcing bar system of the embodiment of the present application;

[0039] Figure 4 It is a steel column structure diagram of the prefabricated support type secondary pouring surface uniform reinforcing bar system of the embodiment of the present application;

[0040] Figure 5This is a second embodiment of a support unit of a prefabricated support type secondary casting surface uniform reinforcement system according to an embodiment of the present invention;

[0041] Figure 6 This is a second embodiment of a support unit of a prefabricated support type secondary casting surface uniform reinforcement system according to an embodiment of the present invention;

[0042] Figure 7 This is a structural schematic diagram of a reinforcement locking unit of a prefabricated support-type secondary casting surface uniform reinforcement insertion system according to an embodiment of the present invention;

[0043] Figure 8 This is a schematic top view of the structure of a sleeve disassembly assembly of a prefabricated support-type secondary casting surface uniform reinforcement system according to an embodiment of the present invention;

[0044] Figure 9 This is a side structural schematic diagram of a sleeve disassembly assembly of a prefabricated support-type secondary casting surface uniform reinforcement system according to an embodiment of the present invention;

[0045] Figure 10 This is a schematic diagram of the three-dimensional structure of a sleeve-assisted loading and unloading unit of a prefabricated support-type secondary casting surface uniform reinforcement insertion system according to an embodiment of the present invention;

[0046] Figure 11 This is a schematic diagram of the internal structure of a sleeve-assisted loading and unloading unit of a prefabricated support-type secondary casting surface uniform reinforcement insertion system according to an embodiment of the present invention;

[0047] Figure 12 This is a structural schematic diagram of a screw forward driving unit of a prefabricated support type secondary casting surface uniform reinforcement insertion system according to an embodiment of the present invention;

[0048] Figure 13 This is a flow chart of a construction method of a prefabricated support type secondary casting surface uniform reinforcement system according to an embodiment of the present invention;

[0049] In all the drawings, the same reference signs refer to the same technical features, specifically: 1 - already poured cushion, 2 - steel reinforcement pre-installed support, 201 - side beam, 202 - transverse frame beam, 203 - longitudinal frame beam, 3 - support support unit, 301 - vertical support column, 302 - flange connecting plate, 303 - anchor bolt, 304 - support column diagonal strut, 4 - steel reinforcement locking unit, 401 - steel reinforcement locking sleeve, 402 - anti-skid rubber pad, 403 - first jacking screw, 410 - sleeve dismounting assembly, 411 - side connecting block, 412 - insertion hole, 413 - concave locking buckle, 414 - locking push block, 415 - second jacking screw, 5 - sleeve auxiliary mounting and dismounting unit, 500 - main housing, 501 - frame beam clamping entrance, 502 - handle, 510 - strong magnet, 520 - screw front pushing driving unit, 521 - rear stage transmission gear, 522 - sliding connection transmission gear, 523 - intermediate transmission gear, 524 - front stage transmission gear, 525 - front pushing driving motor, 6 - steel reinforcement to be inserted, 7 - steel column, 701 - horizontal reinforcing rib, 702 - concealed column steel reinforcement, 8 - concrete secondary pouring surface. DETAILED DESCRIPTION

[0050] In the description of the present application, it needs to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0051] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features referred to. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly specified and limited.

[0052] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances.

[0053] In order to make the purpose, technical scheme and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application. In addition, the technical features involved in each embodiment of the present application described below can be combined with each other as long as they do not conflict with each other.

[0054] As shown in the embodiments of the present application, the prefabricated support type secondary pouring surface uniform reinforcing bar inserting system comprises: Figures 1-12 As shown in the embodiments of the present application, the prefabricated support type secondary pouring surface uniform reinforcing bar inserting system comprises:

[0055] The reinforcing bar prefabricated support 2 is hinged by the edge beam 201, the transverse frame beam 202 and the longitudinal frame beam 203, the reinforcing bar locking unit 4 is installed equidistantly on the transverse frame beam 202, the support supporting unit 3 is arranged at the bottom of the edge beam 201 for overall aerial support of the support, the bottom of the support supporting unit 3 is fixedly connected with the poured cushion 1 at the periphery of the secondary pouring surface, the reinforcing bar 6 to be inserted is fixedly installed in the reinforcing bar locking unit 4, and the longitudinal frame beam 203 at the center of the reinforcing bar prefabricated support 2 is arranged on the hidden column reinforcing bar 702 around the steel column 7.

[0056] The reinforcing bar locking unit 4 comprises a reinforcing bar locking sleeve 401 fixed on the transverse frame beam 202, an anti-skid rubber pad 402 arranged on the inner wall of the reinforcing bar locking sleeve 401 to prevent the reinforcing bar from sliding out, a threaded hole opened in the side wall of the reinforcing bar locking sleeve 401 and a first top pressing screw 403 rotationally connected with the threaded hole.

[0057] In the embodiments of the present application, the reinforcing bar member is arranged by the prefabricated support, and finally the support with the reinforcing bar fixed is hoisted as a whole to the secondary pouring surface by the crane, thereby solving the technical problem that the initial setting time of the first pouring concrete is difficult to control in the construction process by using the method of laying horse path and manually inserting reinforcing bars, and avoiding the risk of safety accidents caused by the manual construction of suspended reinforcing bar erection horse path. In addition, the center of the support after hoisting is overlapped with the hidden column reinforcing bar, thereby improving the support strength and preventing the hidden column reinforcing bar from falling during pouring, and improving the positioning accuracy of the steel column foundation embedded member.

[0058] As shown in the embodiments of the present application, the support supporting unit 3 comprises: Figure 1 , Figure 2 and Figure 5 As shown in the embodiments of the present application, the support supporting unit 3 comprises:

[0059] The vertical support column 301 is fixedly connected with the bottom of the edge beam 201, the flange connecting plate 302 is fixedly connected with the bottom of the vertical support column 301, and the foundation bolt 303 fixedly connects the flange connecting plate 302 with the poured cushion 1.

[0060] AsFigure 6 As shown, in this embodiment of the present invention, the bracket support unit 3 includes:

[0061] The support diagonal brace 304 is installed obliquely on the diagonal vertical support column 301.

[0062] In an embodiment of the present invention, a bracket support unit is separately added under the prefabricated bracket, thereby effectively preventing the concrete from adhering to the prefabricated bracket and ensuring the subsequent multiple reuse value of the bracket; in addition, on the basis of the original support structure, a pillar diagonal brace 304 is added, and the supporting strength of the support unit is improved by utilizing the triangular structure as a whole.

[0063] like Figure 1 、 Figure 3 As shown, in an embodiment of the present invention, the connection between the steel bar locking sleeve 401 and the transverse frame beam 202 is welding.

[0064] like Figure 1 、 Figure 3 As shown, in an embodiment of the present invention, the steel bar locking sleeve 401 and the transverse frame beam 202 are detachably connected.

[0065] like Figure 3 、 Figure 8 、 Figure 9 As shown, in an embodiment of the present invention, the steel bar locking sleeve 401 and the transverse frame beam 202 are detachably connected via a sleeve disassembly assembly 410, and the sleeve disassembly assembly 410 includes:

[0066] A side connecting block 411 fixed to the side wall of the steel bar locking sleeve 401, an insertion hole 412 opened in the side connecting block 411, a concave locking buckle 413 with one end inserted into the insertion hole 412, a threaded hole opened at the other end of the concave locking buckle 413 and a second tightening screw 415 rotatably connected to the threaded hole, and a locking push block 414 fixed at the front end of the second tightening screw 415 for abutting against the transverse frame beam 202.

[0067] In an embodiment of the present invention, through the ingenious combination of the concave locking buckle 413 and the threaded tightening structure, a detachable connection between the steel bar locking sleeve 401 and the transverse frame beam 202 is achieved, thereby effectively realizing the flexible adjustment of the steel bar layout position on the prefabricated bracket, and meeting the customized application requirements of different steel bar layout densities under different construction conditions.

[0068] like Figures 10-12 As shown, in an embodiment of the present invention, the prefabricated support type secondary casting surface uniform reinforcement insertion system further includes a sleeve auxiliary loading and unloading unit 5, which includes:

[0069] The bottom opening main shell 500, the handle 502 installed on the top of the main shell 500, the beam bracket card entrance 501 through the opening of the side of the main shell 500, the strong magnet 510 installed on the inner surface of the main shell 500 and used for temporarily adsorbing the concave locking buckle 413 and the steel bar locking sleeve 401 to prevent falling, the screw rod front pushing driving unit 520 for controlling the front pushing movement of the second tight top screw rod 415;

[0070] As shown in Figure 11 and Figure 12 In the embodiment of the application, the screw rod front pushing driving unit 520 comprises:

[0071] The rear stage transmission gear 521 coaxially fixedly connected to the rear end of the second tight top screw rod 415, the sliding connection transmission gear 522 in meshing transmission with both sides of the rear stage transmission gear 521, the intermediate transmission gear 523 coaxially fixedly connected with the sliding connection transmission gear 522, the front stage transmission gear 524 arranged between a pair of intermediate transmission gears 523 and in meshing transmission with both, and the front pushing driving motor 525 coaxially fixedly connected with the front stage transmission gear 524; the front pushing driving motor 525 is fixedly connected with the main shell 500.

[0072] In the embodiment of the application, by designing the sleeve auxiliary assembly and disassembly unit, the technical problem that the position adjustment process of the steel bar installation tool is extremely tedious due to the large number of steel bars to be installed if the prefabricated support method is used to determine the position of the steel bar is effectively solved, and convenient disassembly and installation of the sleeve tool are realized.

[0073] In the embodiment of the application, the construction method of the prefabricated support type secondary pouring surface uniform reinforcing bar system comprises:

[0074] S100: according to the construction drawing, the area requiring reinforcing bars is measured and laid out, and is expanded by 100mm-200mm, the positioning line and the control line of the poured cushion 1 are laid out;

[0075] S200: the edge beam 201 is installed, the levelness of the edge beam is adjusted through leveling measurement, the longitudinal frame beam 203 is installed and leveled, the transverse frame beam 202 is installed and leveled, and the assembly of the steel bar pre-installation support 2 is completed;

[0076] S300: the support support unit 3 is fixed to the bottom of the steel bar pre-installation support 2, and the vertical support columns 301 in the same plane are connected by using inclined struts;

[0077] S400: by means of the sleeve auxiliary assembly and disassembly unit 5, the sleeve disassembly assembly 410 is connected with the transverse frame beam 202 according to the reinforcing bar spacing, and the steel bar 6 to be inserted is inserted and fixed into the steel bar locking sleeve 401;

[0078] S500: The bracket fixed with the reinforcing steel bar is hoisted by the crane to the secondary pouring surface, and the bracket support unit 3 is fixed to the poured cushion 1 through the foundation bolt;

[0079] S600: Pouring concrete and vibrating, waiting for the concrete to reach the final setting, loosening the first tight top screw 403, releasing the inserted reinforcing steel bar 6, and using vertical transport machinery to directly hoist the bracket to the next type of inserted reinforcing steel bar area; for circulation.

[0080] In the embodiment of the application, the S400 further comprises the following steps:

[0081] S401: Hold the handle 502, first put the concave locking buckle 413 with the second tight top screw 415 into the inner cavity of the main shell 500, then put the reinforcing steel bar locking sleeve 401 into it, and at the same time ensure that the insertion hole 412 is inserted into one end of the concave locking buckle 413, under the action of the powerful magnet 510, ensure that the two will not fall off;

[0082] S402: At the predetermined installation position, the transverse beam 202 is clamped into the beam clamping entrance 501, then the device is started, under the action of the front push driving motor 525, the front stage transmission gear 524, the middle transmission gear 523, the sliding transmission gear 522 and the rear stage transmission gear 521 are driven, finally the second tight top screw 415 is rotated in a certain direction, the locking push block 414 in front of it is extruded to abut the transverse beam 202, so as to complete the fixed connection of the transverse beam 202 and the reinforcing steel bar locking unit 4;

[0083] S403: The sleeve auxiliary assembly and disassembly unit 5 is pulled out to complete the installation operation, and the disassembly operation is reversed.

[0084] The above is only a preferred embodiment of the present application, and is not used to limit the present application, any modification, equivalent replacement and improvement made within the spirit and principle of the present application should be included in the protection scope of the present application. The above is only a preferred embodiment of the present application, it should be pointed out that for ordinary skilled in the art, without departing from the technical principle of the present application, a number of improvements and modifications can be made, these improvements and modifications should be regarded as the protection scope of the present application.

Claims

1. A precast stay-in-place secondary formwork system, characterized in that, The application relates to a steel bar pre-assembly support (2) which is hinged by a side beam (201), a transverse frame beam (202) and a longitudinal frame beam (203), a steel bar locking unit (4) which is equidistantly arranged on the transverse frame beam (202), a support supporting unit (3) which is arranged at the bottom of the side beam (201) and is used for supporting the whole support in the air, the bottom of the support supporting unit (3) is fixedly connected with a poured cushion (1) at the periphery of a secondary pouring surface, a steel bar (6) to be inserted is fixedly arranged in the steel bar locking unit (4), and the longitudinal frame beam (203) at the center of the steel bar pre-assembly support (2) is arranged on a hidden column steel bar (702) around a steel column (7). The steel bar locking unit (4) comprises a steel bar locking sleeve (401) which is fixed to the transverse frame beam (202), an anti-skid rubber pad (402) which is arranged on the inner wall of the steel bar locking sleeve (401) and is used for preventing the steel bar from sliding out, a threaded hole which is arranged on the side wall of the steel bar locking sleeve (401) and a first top pressing screw (403) which is rotationally connected with the threaded hole. The steel bar locking sleeve (401) and the transverse frame beam (202) are detachably connected. The steel bar locking sleeve (401) and the transverse frame beam (202) are detachably connected through a sleeve dismounting assembly (410), the sleeve dismounting assembly (410) comprises a side connecting block (411) which is fixed to the side wall of the steel bar locking sleeve (401), an insertion hole (412) which is arranged on the side connecting block (411), a concave locking buckle (413) which is inserted into the insertion hole (412), a threaded hole which is arranged on the other end of the concave locking buckle (413) and a second top pressing screw (415) which is rotationally connected with the threaded hole, and a locking push block (414) which is fixed to the front end of the second top pressing screw (415) and is used for abutting against the transverse frame beam (202). The sleeve auxiliary dismounting unit (5) comprises an open-bottom main shell (500), a handle (502) which is arranged on the top of the main shell (500), a frame beam clamping entrance (501) which is arranged on the side of the main shell (500), a powerful magnet (510) which is arranged on the inner surface of the main shell (500) and is used for temporarily adsorbing the concave locking buckle (413) and the steel bar locking sleeve (401) to prevent falling, and a screw front pushing driving unit (520) which is used for controlling the second top pressing screw (415) to make front pushing movement. ​ The screw front pushing driving unit (520) comprises: a rear-stage transmission gear (521) coaxially and fixedly connected to the rear end of the second tight-jacking screw (415), a sliding connection transmission gear (522) in meshing transmission with both sides of the rear-stage transmission gear (521), an intermediate transmission gear (523) coaxially and fixedly connected with the sliding connection transmission gear (522), a front-stage transmission gear (524) arranged between a pair of intermediate transmission gears (523) and in meshing transmission with the intermediate transmission gears (523), and a front pushing driving motor (525) coaxially and fixedly connected with the front-stage transmission gear (524); and the front pushing driving motor (525) is fixedly connected with the main shell (500).

2. A precast support formwork system according to claim 1, wherein, The support support unit (3) comprises: A vertical support column (301) fixedly connected to the bottom of the edge beam (201), a flange connecting plate (302) fixedly connected to the bottom of the vertical support column (301), and a foundation bolt (303) fixedly connecting the flange connecting plate (302) and the poured cushion (1).

3. A precast support formwork system according to claim 2, wherein, The support support unit (3) further comprises: A strut inclined strut (304) obliquely mounted on a diagonal vertical support column (301).

4. A construction method of a prefabricated support type secondary casting surface uniform reinforcing bar system, applied to the prefabricated support type secondary casting surface uniform reinforcing bar system of claim 3, characterized in that, The method comprises the following steps: S100: According to the construction drawing, measure and lay out the area where the reinforcing bar needs to be inserted, and expand 100mm-200mm, lay out the positioning line and control line of the poured cushion (1); S200: Install the edge beam (201), adjust the levelness of the edge beam by leveling measurement, install the longitudinal frame beam (203), and adjust the levelness of the longitudinal frame beam (203); install the transverse frame beam (202), and adjust the levelness of the transverse frame beam (202), complete the assembly of the reinforcing bar pre-assembly support (2); S300: Fix the support support unit (3) to the bottom of the reinforcing bar pre-assembly support (2), and connect the vertical support columns (301) in the same plane by using the strut inclined strut (304); S400: By means of the sleeve auxiliary assembly and disassembly unit (5), connect the sleeve disassembly assembly (410) and the transverse frame beam (202) according to the reinforcing bar spacing, and insert the reinforcing bar (6) to be inserted into the reinforcing bar locking sleeve (401); S500: Hoist the support with the reinforcing bar fixed thereto as a whole to the secondary pouring surface by the crane, and fix the support support unit (3) to the poured cushion (1) by the foundation bolt; S600: Pour concrete and vibrate, wait until the concrete reaches the final setting, loosen the first tight-jacking screw (403), release the reinforcing bar (6) to be inserted, and directly hoist the support to the next reinforcing bar area of the same type by using the vertical transportation machine; and perform turnover use.

5. The construction method of a precast support type secondary casting surface uniform reinforcing bar system according to claim 4, characterized in that, The S400 further comprises the following steps: S401: Hold the handle (502), first put the concave locking buckle (413) provided with the second tight-jacking screw (415) into the inner cavity of the main shell (500), then put the reinforcing bar locking sleeve (401) into the concave locking buckle (413), and At the same time, ensure that the insertion hole (412) is inserted into one end of the concave locking buckle (413), and under the action of the strong magnet (510), ensure that the two will not fall off. S402: In the predetermined installation position, the transverse beam (202) is clamped into the beam clamping entrance (501), and then the device is started. Under the action of the front pushing driving motor (525), the front stage transmission gear (524), the intermediate transmission gear (523), the sliding connection transmission gear (522), and the rear stage transmission gear (521) are driven, finally making the second tight top screw (415) directional rotation, so that the locking push block (414) in front of it extrudes and abuts against the transverse beam (202), to complete the fixed connection of the transverse beam (202) and the steel bar locking unit (4); S403: The sleeve auxiliary mounting and dismounting unit (5) is pulled out, and the installation operation is completed. Conversely, the dismounting operation is also completed.

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