Concrete outer wall joint construction device and construction method

Abstract

The invention relates to the technical field of concrete outer wall construction, in particular to a concrete outer wall joint construction device and method, and the concrete outer wall joint construction device comprises a flatness limiting mechanism for a prefabricated wallboard to abut against and a formwork building mechanism for pouring joint concrete; the flatness limiting mechanism comprises a fixed abutting plate allowing the inner wall of the prefabricated wallboard to abut against, a movable abutting plate allowing the outer wall of the prefabricated wallboard to abut against and an extension arm allowing the fixed abutting plate and the movable abutting plate to be installed and used for stretching into a joint gap. The extension arm vertically penetrates through the fixed abutting plate, the fixed abutting plate is fixedly connected with the extension arm, and the movable abutting plate is movably connected to the end, away from the fixed abutting plate, of the extension arm; the template building mechanism is located in the downstream process direction of the flatness limiting mechanism. The device has the effects that splicing construction of the prefabricated wallboards is assisted, and the flatness of the spliced wall surface is improved.

Description

Technical Field

[0001] The present application relates to the technical field of concrete exterior wall construction, and in particular to a concrete exterior wall joint construction device and a construction method. Background Art

[0002] During the construction process, in order to improve the construction efficiency of concrete exterior walls, several prefabricated concrete wall panels are usually hoisted and arranged side by side on the edge of the floor slab, and then the two adjacent wall panels are joined from the inner side of the wall panels to form a complete wall.

[0003] In the related art, the joint is mainly completed by pouring concrete. Two prefabricated wall panels are respectively embedded with joint steel bars on the two sides close to each other, and a joint gap is left between the two adjacent prefabricated wall panels for joint processing. First, a steel cage needs to be placed in the joint gap to achieve the effect of connecting the joint steel bars on both sides, thereby improving the stability of the wall after the joint. Then, a casting template is set up on both sides of the wall panel at the joint position, and then concrete is poured in the joint gap to complete the wall joint processing.

[0004] With regard to the above-mentioned related technologies, when two adjacent wall panels are arranged at the edge of the floor slab, they need to be straightened manually and with laser-assisted instruments, etc., so that the wall surfaces of the two wall panels are on the same horizontal plane to ensure the flatness after the joint. On the one hand, the accuracy of manual straightening is poor and the efficiency is low. On the other hand, in the process of supporting the casting formwork on both sides of the wall panels, slight wall panel shaking may occur, which will affect the pre-straightening treatment and thus affect the flatness of the wall surface after the joint. Therefore, it is necessary to provide a device to assist in the joint construction of prefabricated wall panels and improve the flatness of the wall surface after the joint. Summary of the invention

[0005] In order to assist the joint construction of prefabricated wall panels and improve the flatness of the wall surface after the joint, the present application provides a concrete exterior wall joint construction device.

[0006] The present application provides a concrete exterior wall joint construction device that adopts the following technical solution: A concrete exterior wall joint construction device, comprising a flatness limiting mechanism for a prefabricated wall panel to abut against and a template building mechanism for pouring joint concrete; The flatness limiting mechanism comprises a fixed abutment plate for the inner wall of the prefabricated wall panel to abut, a movable abutment plate for the outer wall of the prefabricated wall panel to abut, and an extension arm for the fixed abutment plate and the movable abutment plate to be installed and used to extend into the joint gap, the fixed abutment plate is vertically passed through the extension arm and is fixedly connected to the extension arm, the movable abutment plate is movably connected to one end of the extension arm away from the fixed abutment plate, and the distance between the connection position of the movable abutment plate and the extension arm and the fixed abutment plate is equal to the width of the prefabricated wall panel; The template building mechanism is located in the downstream process direction of the flatness limiting mechanism.

[0007] By adopting the above technical solution, when hoisting the prefabricated wall panels, first set up the flatness limiting mechanism on the edge of the floor, open the movable abutment plate so that the movable abutment plate and the fixed abutment plate are parallel to each other, and at this time, the movable abutment plate, the fixed abutment plate and the floor together form a trough structure. When the prefabricated wall panels are hoisted and dropped from top to bottom on the floor, the trough structure provides a limiting function for the prefabricated wall panels, ensuring that the prefabricated wall panels fall to the preset position in a parallel state. The setting of the flatness limiting mechanism can play a limiting effect on the hoisting process of the prefabricated wall panels, thereby ensuring that when the prefabricated wall panels are hoisted and fixed on the edge of the floor, the two adjacent prefabricated wall panels can be on the same straight line and remain parallel to each other, thereby improving the flatness of the front wall.

[0008] The template building structure is set in the downstream process of the flatness limiting mechanism. After the prefabricated wall panels are fixed to the floor, the casting template can be supported at the joint position of two adjacent prefabricated wall panels to facilitate concrete pouring. The template building mechanism and the flatness limiting mechanism cooperate with each other. On the one hand, it is initially leveled from the hoisting stage of the prefabricated wall panels, and on the other hand, it is leveled from the joint casting, thereby improving the flatness of the overall wall surface.

[0009] Furthermore, the number of the movable abutment plates is two and they are respectively used to abut against the outer sides of two adjacent prefabricated wall panels. The two movable abutment plates are symmetrically arranged and rotatably connected to the end of the extension arm. The extension arm is provided with an abutment driving assembly for driving the two movable abutment plates to open and close.

[0010] By adopting the above technical solution, there are two movable abutment plates, which are respectively used to abut against the outer sides of two adjacent prefabricated wall panels. The two movable abutment plates are symmetrically arranged and rotatably connected to the end of the extension arm. The two movable abutment plates are mirror-symmetrical with respect to the axis of the extension arm. The extension arm is provided with an abutment driving assembly for driving the two movable abutment plates, which is used to control the opening and closing of the movable abutment plates, thereby ensuring that the two movable abutment plates can provide symmetrical abutment forces to the two prefabricated wall panels respectively.

[0011] Furthermore, the flatness limiting mechanism also includes a vertical mounting frame for mounting the extension arm, the number of the extension arms is several and all are arranged perpendicular to the extension arms, the extension arms are parallel to each other and arranged at intervals along the height direction of the vertical mounting frame, and each extension arm is provided with two symmetrically arranged movable abutment plates on the side away from the fixed abutment plate.

[0012] By adopting the above technical solution, the vertical mounting frame is used as the basic support structure of the flatness limiting mechanism to install and fix multiple extension arms. There are multiple extension arms and they are all arranged perpendicular to the vertical mounting frame. The extension arms are parallel to each other and arranged at intervals along the height direction of the vertical mounting frame. By pushing the vertical mounting frame, each extension arm can be accurately extended into the joint gap. When the movable extension plates on each extension arm are in the open state, the flatness limiting mechanism can simultaneously provide multiple points for the outer side of the prefabricated wall panel to abut against, thereby providing a stable abutting force.

[0013] Furthermore, the fixed abutment plate and the movable abutment plate are both provided with a hoisting guide surface matched with the prefabricated floor slab on the top side, and the hoisting guide surface is both arranged to be inclined downward toward the side close to the wall panel.

[0014] By adopting the above technical solution, when the prefabricated wall panel falls from top to bottom between the fixed abutment plate and the movable abutment plate, the lifting guide surface can reduce the shaking and misalignment of the wall panel during the lifting process, and guide the wall panel to fall smoothly and accurately into the predetermined position, thereby reducing errors and deviations during the construction process.

[0015] Furthermore, the template construction mechanism includes an inner template component supported on the inner side of the prefabricated wall panel, an outer template component supported on the outer side of the prefabricated wall panel, and a bidirectional driving component for driving the inner template component and the outer template component to move closer to / away from each other; The inner template assembly includes an inner connecting plate for cooperating with the bidirectional drive assembly, and a first inner template and a second inner template symmetrically arranged and rotatably connected to both sides of the inner connecting plate, the upper end of the inner connecting plate has an inner connecting protrusion for connecting with the bidirectional drive assembly, and the inner connecting protrusion protrudes from the top sides of the first inner template and the second inner template; The outer template assembly includes an outer connecting plate for cooperating with the two-way drive assembly and a first outer template and a second outer template symmetrically arranged and rotatably connected to both sides of the outer connecting plate. The upper end of the outer connecting plate has an outer connecting protrusion for connecting with the two-way drive assembly. The external connecting protrusion protrudes from the top sides of the first outer template and the second outer template. The first outer template and the second outer template are both provided with a rebound torsion spring for cooperating with the outer connecting plate.

[0016] By adopting the above technical solution, the outer template assembly is supported on the outer side of the prefabricated wall panel, and the upper end of the outer connection plate is provided with an outer connection protrusion, which protrudes from the top side of the first outer template and the second outer template so as to be connected and driven by the two-way drive assembly. The first outer template and the second outer template are symmetrically arranged and rotatably connected to both sides of the outer connection plate, and the first outer template and the second outer template are both provided with a rebound torsion spring. When the outer template assembly extends into the joint gap, the edges of the first outer template and the second outer template are squeezed and folded inward, and when the edges of both sides of the first outer template and the second outer template completely pass through the joint gap, they return to their original positions through the rebound torsion spring.

[0017] In the inner formwork assembly, the inner connecting plate, the first inner formwork, the second inner formwork and the outer formwork assembly are arranged in a substantially similar manner, and no rebound torsion spring is arranged in the first inner formwork and the second inner formwork. When the outer formwork assembly extends into the joint gap, the first inner formwork and the second inner formwork gradually open and abut against the inner side of the prefabricated wall panel. The bidirectional drive assembly can drive the inner formwork assembly and the outer formwork assembly to approach each other to abut against both sides of the wall panel, thereby closing the joint gap from both sides to form a chamber for pouring concrete, and completing the rapid construction of the pouring formwork.

[0018] Furthermore, the template construction mechanism also includes an L-shaped mounting frame, which has a vertical frame and a horizontal hanger vertically arranged on the upper side of the vertical frame. The horizontal hanger is provided with a driving guide rail for cooperating with the bidirectional drive assembly along the length direction on the lower side.

[0019] By adopting the above technical solution, a driving guide rail is provided on the lower side of the horizontal hanger of the L-shaped mounting frame along the length direction, and the guide rail is used to cooperate with the bidirectional driving assembly to ensure that the driving assembly can move smoothly and accurately, thereby driving the outer template assembly to pass through the joint gap and be located on the outer side of the wall panel in an open state, and driving the inner template assembly to abut against the inner side of the wall panel in an open state.

[0020] Furthermore, the bidirectional drive assembly includes a bidirectional motor screw and a U-shaped mounting seat, the motor of the bidirectional motor screw is fixedly connected to the lower side of the U-shaped mounting seat, and the two ends of the screw of the bidirectional motor screw are respectively threadedly engaged with the inner connecting protrusion and the outer connecting protrusion.

[0021] By adopting the above technical solution, the motor part of the bidirectional motor screw is fixedly connected to the lower side of the U-shaped mounting seat, and the motor serves as a power source to provide the necessary torque and speed to drive the screw to rotate. The screw part of the bidirectional motor screw has a bidirectional thread, so that the two ends of the screw have different thread directions, and the two ends of the screw are respectively threaded with the inner connecting protrusion and the outer connecting protrusion. When the screw rotates, it drives the inner connecting protrusion and the outer connecting protrusion at the same time to achieve a relatively close / far effect.

[0022] Furthermore, it also includes a floor rail driving mechanism, which includes parallel floor rails arranged on the floor, a first sliding platform for installing the flatness limiting mechanism, and a second sliding platform for installing the template building mechanism. The length direction of the parallel floor rails is arranged parallel to the edge of the floor, the first sliding platform and the second sliding platform are both slidably installed on the parallel floor rails, and the first sliding platform is provided with a longitudinal driving seat for driving the flatness limiting mechanism to move perpendicular to the parallel floor rails.

[0023] By adopting the above technical solution, parallel ground rails are arranged on the floor to provide two parallel rails for supporting and guiding the first sliding platform and the second sliding platform to move along the construction direction of the wall. The length direction of the parallel ground rails is arranged parallel to the edge of the floor to ensure the stability and accuracy of the construction device during the movement. The first sliding platform is used to install the flatness limit mechanism, and the second sliding platform is used to install the template building mechanism, so that the flatness limit mechanism and the template building mechanism can maintain the same spacing with the wall panel during the translation process. The ground rail driving mechanism can ensure the smooth movement and precise positioning of the construction device on the floor. Thereby improving the construction accuracy, the first sliding platform and the second sliding platform can both move quickly on the parallel ground rails to avoid manual movement. The longitudinal drive seat enables the flatness limit mechanism to be adjusted in the vertical direction, thereby driving the extension arm to extend into / out of the joint gap, simplifying the operation process and improving construction efficiency.

[0024] Furthermore, a synchronous connecting rod for linkage is fixedly connected between the first sliding platform and the second sliding platform, and the length of the synchronous connecting rod is the same as the length of the prefabricated wall panel.

[0025] By adopting the above technical solution, the setting of the synchronous connecting rod ensures the synchronization and coordination of the first sliding platform and the second sliding platform during the movement process, and the length of the synchronous connecting rod is the same as the length of the prefabricated wall panel. When the first sliding platform drives the flatness limit mechanism to move to the next joint gap to position and level the hoisted wall panel, the second sliding platform can just drive the template construction mechanism to build the casting template at the position of the previous joint gap, thereby improving the construction accuracy and efficiency.

[0026] A method for constructing a concrete exterior wall joint comprises the following steps: S1, install a horizontal ground rail on the floor slab so that the horizontal ground rail is parallel to the edge of the floor slab, install the first sliding platform and the second sliding platform on the horizontal ground rail, ensure that the first sliding platform and the second sliding platform can move smoothly on the ground rail, fix the vertical mounting frame of the flatness limit mechanism on the first sliding platform, fix the L-shaped mounting frame of the template construction mechanism on the second sliding platform, and connect the synchronous connecting rod; S2, adjusting the first sliding platform so that the extension arm is aligned with one side of the prefabricated wall panel, adjusting the movable abutment plate to be in a retracted state, and adjusting the longitudinal driving seat so that the extension plate drives the fixed plate to abut against the inner wall of the prefabricated wall panel; S3, adjusting the movable abutment plate to an open state, so that the movable abutment plate on the side of the preceding station abuts against the outer wall of the prefabricated wall panel, using a hoisting device to drop the prefabricated wall panel from top to bottom between the fixed abutment plate and the movable abutment plate on the side of the subsequent station, so that the prefabricated wall panel falls smoothly onto the floor slab and lands accurately at the subsequent station, fixing the prefabricated wall panel on the floor slab, so that a joint gap is formed between the prefabricated wall panel and the prefabricated wall panel at the preceding station; S4, adjust the movable abutment plate to be in a retracted state, adjust the longitudinal drive seat so that the extension plate drives the movable abutment plate to exit the joint gap, adjust the first sliding platform so that the extension arm is aligned with one side of the prefabricated wall panel of the subsequent station, and at this time, the second sliding platform just drives the horizontal hanger to be located above the joint gap of the previous station; S5, adjusting the driving guide rail so that the outer formwork assembly passes through the joint gap and ensures that the inner formwork assembly is located inside the prefabricated wall; S6, adjusting the bidirectional drive assembly to ensure that the inner formwork assembly is pressed against the inner wall of the prefabricated wall, and the outer formwork assembly is pressed against the outer wall of the prefabricated wall, and the pouring formwork is completed; S7, placing a steel cage in the joint gap and pouring concrete to complete the joint; S8, adjusting the first sliding platform to the subsequent station, driving the flatness limit mechanism to guide the prefabricated wall panels of the subsequent station to be hoisted, at this time, the second sliding platform drives the template construction mechanism to slide along both sides of the prefabricated wall panels of the previous station to the joint gap of the subsequent station and wait for the joint; S9, completing the joint of the entire wall, adjusting the second sliding platform so that the horizontal hanger is located at the edge of one side of the wall, adjusting the driving guide rail and ensuring that the outer formwork assembly and the inner formwork assembly are returned to the side close to the vertical stand; S10, dismantling the template construction mechanism and the second sliding platform, dismantling the flatness limiting mechanism and the first sliding platform, and dismantling the horizontal floor rail.

[0027] In summary, the present application includes at least one of the following beneficial technical effects: 1. By setting up a flatness limiting mechanism, a stable limiting effect can be provided during the hoisting process of the prefabricated wall panels, ensuring that two adjacent prefabricated wall panels can be on the same straight line and remain parallel to each other, thereby improving the flatness of the front wall; 2. The template construction mechanism can quickly and conveniently build the pouring template at the correct location, simplifying the complex process of traditional template construction and improving construction efficiency; 3. The floor rail driving mechanism enables the flatness limiting mechanism and the formwork construction mechanism to move smoothly and accurately position on the floor, further improving the construction accuracy and wall flatness. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of a concrete exterior wall joint construction device built on a floor slab in an embodiment of the present application.

[0029] Figure 2 It is a schematic diagram of the overall structure of a concrete exterior wall joint construction device according to an embodiment of the present application.

[0030] Figure 3 It is a schematic diagram of the overall structure of the extension arm, the fixed abutment plate and the movable abutment plate in the embodiment of the present application.

[0031] Figure 4 This is an embodiment of the present application Figure 3 An enlarged schematic diagram of the structure where part A abuts against the drive assembly.

[0032] Figure 5 It is a schematic diagram of the overall structure of the second sliding platform, L-shaped mounting frame and driving guide rail in the embodiment of the present application.

[0033] Figure 6 It is a schematic diagram of the overall structure of the inner template assembly, the outer template assembly and the bidirectional drive assembly in the embodiment of the present application.

[0034] Figure 7 yes Figure 6 A schematic diagram of the enlarged structure of the bidirectional drive component in part B.

[0035] Figure 8 It is a schematic diagram of the structural explosion of the internal and external template components in the embodiment of the present application.

[0036] Description of reference numerals: 01, floor; 02, prefabricated wall panel; 03, joint gap; 1, flatness limit mechanism; 11, vertical mounting frame; 12, extension arm; 13, fixed abutment plate; 131, lifting guide surface; 14, movable abutment plate; 15, abutment drive assembly; 151, gear; 152, drive motor; 2, template construction mechanism; 21, L-shaped mounting frame; 211, vertical frame; 212, horizontal hanger; 213, drive guide rail; 214, movable connection block; 22, inner template assembly; 221, inner connection plate; 2211, inner connection protrusion; 2212, inner Side limiting convex edge; 222, first inner template; 223, second inner template; 23, outer template assembly; 231, outer connecting plate; 2311, outer connecting convex part; 2312, outer limiting convex edge; 232, first outer template; 233, second outer template; 234, rebound torsion spring; 24, two-way drive assembly; 241, two-way motor lead screw; 242, U-shaped mounting seat; 243, guide rod; 3, ground rail drive mechanism; 31, parallel ground rail; 32, first sliding platform; 321, sliding groove; 322, longitudinal drive seat; 33, second sliding platform; 331, synchronous connecting rod. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of this application more clear, the following Figure 1-8 And embodiments, the present application is further described in detail.

[0038] The present application embodiment discloses a concrete exterior wall joint construction device and construction method. Figure 1 and Figure 2 A concrete exterior wall joint construction device comprises a flatness limiting mechanism 1, a template building mechanism 2 and a ground rail driving mechanism 3. The flatness limiting mechanism 1 is used for a prefabricated wall panel to abut against, the template building mechanism 2 is used for building a template at the joint position, so as to pour the joint concrete, and the ground rail driving mechanism 3 is installed on the floor slab and is used for the flatness limiting mechanism 1 and the template building mechanism 2 to move.

[0039] The floor rail driving mechanism 3 includes a parallel floor rail 31, a first sliding platform 32 and a second sliding platform 33. The parallel floor rail 31 has two parallel steel structure rails. The two parallel floor rails 31 are fixedly connected to the floor slab and remain parallel to the edge of the floor slab. The first sliding platform 32 and the second sliding platform 33 are slidably installed on the parallel floor rail 31. The first sliding platform 32 is used to install the flatness limiting mechanism 1, and the second sliding platform 33 is used to install the template building mechanism 2. The second sliding platform 33 is installed in the downstream process direction of the first sliding platform 32, so that the template building mechanism 2 is located downstream of the flatness limiting mechanism 1.

[0040] The first sliding platform 32 has a sliding groove 321 on the upper side along a direction perpendicular to the parallel ground rail 31. A longitudinal driving seat 322 for driving the flatness limiting mechanism 1 to move forward and backward is arranged in the sliding groove 321. In this embodiment, the power source of the longitudinal driving seat 322 is preferably a motor screw with relatively stable driving force.

[0041] A synchronous connecting rod 331 is fixedly connected between the first sliding platform 32 and the second sliding platform 33, and the synchronous connecting rod 331 enables the first sliding platform 32 and the second sliding platform 33 to move synchronously. The length of the synchronous connecting rod 331 is the same as the length of the prefabricated wall panel. When the first sliding platform 32 drives the flatness limiting mechanism 1 to move to the next joint gap to position and level the hoisted wall panel, the second sliding platform 33 can just drive the template construction mechanism 2 to build the casting template at the position of the previous joint gap.

[0042] The flatness limiting mechanism 1 comprises a vertical mounting frame 11 , an extension arm 12 vertically arranged on the vertical mounting frame 11 , a fixed abutment plate 13 fixedly connected to the extension arm 12 , and a movable abutment plate 14 movably connected to the extension arm 12 .

[0043] The vertical mounting frame 11 is vertically arranged and fixedly connected to the upper side of the longitudinal driving seat 322. In this embodiment, there are two extension arms 12 and they are arranged parallel to each other. The two extension arms 12 are arranged at intervals and are vertically fixedly connected to the side of the vertical mounting frame 11 close to the prefabricated wall panel. The fixed abutment plate 13 is vertically passed through the extension arm 12 and fixedly connected to the middle position of the extension arm 12.

[0044] Reference Figure 2 and Figure 3 At the end of each connecting arm, two movable abutment plates 14 are symmetrically opened and closed, and an abutment driving assembly 15 for driving the movable abutment plates 14 to open and close are provided. The movable abutment plates 14 are symmetrically hinged at the end of the extension arm 12, and the length of the connection position between the movable abutment plates 14 and the extension arm 12 and the fixed abutment plate 13 is equal to the width of the prefabricated wall panel.

[0045] Combination Figure 4 The abutment driving assembly 15 includes two gears 151 respectively used to be fixedly connected to the two hinge shafts and a driving motor 152 for driving the hinge shaft to rotate. The driving motor 152 is installed at the lower side of the end of the extension arm 12 and is fixedly connected to one of the hinge shafts. The two gears 151 are meshed with each other and are both installed on the upper side of the end of the extension arm 12.

[0046] When the movable abutment plate 14 is in the folded state, the longitudinal drive seat 322 drives the vertical mounting frame 11 to move forward and drives the extension arm 12 to extend into the joint gap, so that the fixed abutment plate 13 abuts against the inner side of the prefabricated wall panel of the previous station, and then drives the movable abutment plate 14 to the open state through the abutment drive assembly 15, so that the movable abutment plate 14 abuts against the outer side of the prefabricated wall panel of the previous station. Subsequently, the prefabricated wall panel of the next station is hoisted and falls from top to bottom between the fixed abutment plate 13 and the movable abutment plate 14. The fixed abutment plate 13 is provided with a hoisting guide surface 131 on the upper side of the movable abutment plate 14 for guiding the prefabricated wall panel to fall, and the hoisting guide surface 131 is arranged downwardly toward the side close to the wall panel.

[0047] Reference Figure 2 The template erection mechanism 2 includes an L-shaped mounting frame 21, an inner template assembly 22 for supporting the inner side of the prefabricated wall panel, an outer template assembly 23 for supporting the outer side of the prefabricated wall panel, and a bidirectional driving assembly 24 for driving the inner template assembly 22 and the outer template assembly 23 to move closer to / away from each other.

[0048] The L-shaped mounting frame 21 includes a vertical stand 211 vertically arranged and fixedly connected to the second sliding platform 33 and a horizontal hanger 212 vertically arranged and integrally connected to the upper side. Figure 5 The horizontal hanger 212 is provided with a driving rail 213 at the lower side along the length direction. In this embodiment, the power source of the driving rail 213 is preferably a motor screw with relatively stable driving force, and the driving rail 213 is threaded with a movable connecting block 214 for connecting the bidirectional driving assembly 24.

[0049] Reference Figure 6 and Figure 7 The bidirectional driving assembly 24 includes a bidirectional motor screw 241, a U-shaped mounting seat 242 and a guide rod 243. The U-shaped mounting seat 242 is fixedly connected to the lower side of the movable connecting block 214. The motor of the bidirectional motor screw 241 is fixedly connected to the lower side of the U-shaped mounting seat 242, and the two ends of the screw of the bidirectional motor screw 241 are respectively threaded with the inner template assembly 22 and the outer template assembly 23. The guide rod 243 is arranged below the bidirectional motor screw 241, and the two ends of the guide rod 243 are respectively fixedly connected to the two sides of the U-shaped mounting seat 242, so that when the bidirectional motor screw 241 drives the inner template assembly 22 and the outer template assembly 23, it plays an auxiliary guiding effect.

[0050] The inner template assembly 22 includes an inner connecting plate 221 and a first inner template 222 and a second inner template 223 that are symmetrically arranged and hinged on both sides of the inner connecting plate 221. The upper end of the inner connecting plate 221 has an inner connecting protrusion 2211 for threaded connection with the bidirectional motor screw 241, and the inner connecting protrusion 2211 protrudes from the top side of the first inner template 222 and the second inner template 223, so as to avoid the interference between the first inner template 222 and the second inner template 223 and the bidirectional driving assembly 24 when the first inner template 222 and the second inner template 223 are turned over. The inner connecting plate 221 is symmetrically arranged at the edge positions on both sides and is integrally connected with inner limiting convex edges 2212, which are located on the side of the inner connecting plate 221 away from the prefabricated wall panel. When the first inner template 222 and the second inner template 223 are turned over, the inner limiting convex edges 2212 can abut against the first inner template 222 and the second inner template 223 to limit the maximum turning angle of the two.

[0051] The outer template assembly 23 includes an outer connecting plate 231 and a first outer template 232 and a second outer template 233 that are symmetrically arranged and rotatably connected to both sides of the outer connecting plate 231. The upper end of the outer connecting plate 231 has an outer connecting protrusion 2311 for threaded connection with the bidirectional motor screw 241, and the outer connecting protrusion 2311 protrudes from the top side of the first outer template 232 and the second outer template 233. The outer connecting plate 231 is symmetrically arranged at the edge positions on both sides and is integrally connected with an outer limiting convex edge 2312, which is located on the side of the outer connecting plate 231 away from the prefabricated wall panel. When the first outer template 232 and the second outer template 233 are flipped, the outer limiting convex edge 2312 can abut against the first outer template 232 and the second outer template 233 to limit the maximum flipping angle of the two.

[0052] The inner connection protrusion 2211 and the outer connection protrusion 2311 are both slidably connected to the guide rod 243. Figure 8 The first outer template 232 and the second outer template 233 are both provided with a rebound torsion spring 234 on the hinge axis for cooperating with the outer connecting plate 231.

[0053] When the outer formwork assembly 23 extends into the joint gap, the edges of the first outer formwork 232 and the second outer formwork 233 are squeezed and folded inward. When the edges on both sides of the first outer formwork 232 and the second outer formwork 233 completely pass through the joint gap, they return to their original positions through the rebound torsion spring 234. When the outer formwork assembly 23 extends into the joint gap, the first inner formwork 222 and the second inner formwork 223 gradually open and abut against the inner side of the prefabricated wallboard. When the first inner formwork 222 and the second inner formwork are pressed against the inner side of the prefabricated wallboard, the bidirectional motor screw 241 drives the inner connection protrusion 2211 and the outer connection protrusion 2311 to approach each other, so that the first outer formwork 232 and the second outer formwork 233 are pressed against the outer side of the prefabricated wallboard, thereby completing the rapid construction of the casting formwork.

[0054] A concrete exterior wall joint construction method, the steps are as follows: S1, install a horizontal ground rail on the floor slab so that the horizontal ground rail is parallel to the edge of the floor slab, install the first sliding platform 32 and the second sliding platform 33 on the horizontal ground rail, ensure that the first sliding platform 32 and the second sliding platform 33 can move smoothly on the ground rail, fix the vertical mounting frame 11 of the flatness limiting mechanism 1 on the first sliding platform 32, fix the L-shaped mounting frame 21 of the template building mechanism 2 on the second sliding platform 33, and connect the synchronous connecting rod 331; S2, adjust the first sliding platform 32 so that the extension arm 12 is aligned with one side of the prefabricated wall panel, adjust the movable abutment plate 14 to be in a retracted state, and adjust the longitudinal driving seat 322 so that the extension plate drives the fixed plate to abut against the inner wall of the prefabricated wall panel; S3, adjust the movable abutment plate 14 to be in an open state, so that the movable abutment plate 14 on the side of the preceding station abuts against the outer wall of the prefabricated wall panel, use the hoisting equipment to drop the prefabricated wall panel from top to bottom between the fixed abutment plate 13 and the movable abutment plate 14 on the side of the subsequent station, so that the prefabricated wall panel falls smoothly onto the floor slab and lands accurately at the subsequent station, fix the prefabricated wall panel on the floor slab, so that a joint gap is formed between the prefabricated wall panel and the prefabricated wall panel at the preceding station; S4, adjust the movable abutment plate 14 to be in the folded state, adjust the longitudinal drive seat 322 so that the extension plate drives the movable abutment plate 14 to exit the joint gap, adjust the first sliding platform 32 so that the extension arm 12 is aligned with one side of the prefabricated wall panel of the subsequent station, and at this time, the second sliding platform 33 just drives the horizontal hanger 212 to be located above the joint gap of the previous station; S5, adjusting the driving guide rail 213 so that the outer formwork assembly 23 passes through the joint gap, ensuring that the inner formwork assembly 22 is located inside the prefabricated wall; S6, adjust the bidirectional drive assembly 24 to ensure that the inner template assembly 22 is pressed against the inner wall of the prefabricated wall, and at the same time ensure that the outer template assembly 23 is pressed against the outer wall of the prefabricated wall, and complete the construction of the casting template; S7, placing a steel cage in the joint gap and pouring concrete to complete the joint; S8, adjust the first sliding platform 32 to the subsequent station, drive the flatness limit mechanism 1 to guide the prefabricated wall panels of the subsequent station to be hoisted, at this time, the second sliding platform 33 drives the template construction mechanism 2 to slide along both sides of the prefabricated wall panels of the previous station to the joint gap of the subsequent station and wait for the joint; S9, complete the joint of the entire wall, adjust the second sliding platform 33 so that the horizontal hanger 212 is located at the edge of one side of the wall, adjust the driving guide rail 213 and ensure that the outer formwork assembly 23 and the inner formwork assembly 22 are returned to the side close to the vertical stand 211; S10, dismantle the template construction mechanism 2 and the second sliding platform 33, dismantle the flatness limiting mechanism 1 and the first sliding platform 32, and dismantle the horizontal ground rail.

[0055] The implementation principle of a concrete exterior wall joint construction device in the embodiment of the present application is as follows: the ground rail driving mechanism 3 includes a parallel ground rail 31, a first sliding platform 32 and a second sliding platform 33. The parallel ground rail 31 is fixedly connected to the floor slab and remains parallel to the edge of the floor slab. The first sliding platform 32 and the second sliding platform 33 are respectively installed on the parallel ground rail 31 and can slide along the rail. The first sliding platform 32 is used to install the flatness limiting mechanism 1, and the second sliding platform 33 is used to install the template building mechanism 2. The synchronous connecting rod 331 connects the first sliding platform 32 and the second sliding platform 33 to ensure that the two can move synchronously to achieve synchronization and coordination of the construction process. The length of the synchronous connecting rod 331 is the same as the length of the prefabricated wall panel. When the first sliding platform 32 drives the flatness limiting mechanism 1 to move to the next joint gap to position and level the hoisted wall panel, the second sliding platform 33 can just drive the template building mechanism 2 to build the casting template at the position of the previous joint gap.

[0056] The flatness limiting mechanism 1 is fixed on the first sliding platform 32 through a vertical mounting frame 11 and an extension arm 12, and is used for positioning and leveling prefabricated wall panels. A fixed abutment plate 13 and a movable abutment plate 14 are provided on the extension arm 12. The extension arm 12 extends into the joint gap and makes the fixed abutment plate 13 press against the inner side of the wall panel. The movable abutment plate 14 is opened, and the movable abutment plate 14 on one side abuts against the prefabricated wall panel of the previous station, and the movable abutment plate 14 on the other side provides a limiting effect for the wall panel hoisting of the next station.

[0057] The template construction mechanism 2 is installed on the second sliding platform 33 and is used to build a casting mold at the joint position. The mechanism includes an L-shaped mounting frame 21, an inner template assembly 22, an outer template assembly 23 and a two-way drive assembly 24. The inner template assembly 22 and the outer template assembly 23 are respectively used to support the inner and outer sides of the prefabricated wallboard, and the two-way drive assembly 24 drives the two to move closer to or away from each other. Both the inner template assembly 22 and the outer template assembly 23 are designed with flippable panels to facilitate insertion into the joint gap and automatic adjustment to a suitable position. When the template assembly is inserted into the joint gap, the edge of the outer template assembly 23 is squeezed and folded inward, and returns to its original position through the rebound torsion spring 234; the inner template assembly 22 gradually opens and abuts against the inner side of the prefabricated wallboard. The two-way drive assembly 24 further drives the inner and outer template assemblies 23 to move closer to each other until they are tightly fitted with the prefabricated wallboard to complete the template construction.

[0058] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A concrete exterior wall joint construction device, characterized in that: It comprises a flatness limiting mechanism (1) for the prefabricated wall panels to abut against and a template building mechanism (2) for pouring joint concrete; The flatness limiting mechanism (1) comprises a fixed abutting plate (13) for abutting against the inner wall of the prefabricated wall panel, a movable abutting plate (14) for abutting against the outer wall of the prefabricated wall panel, and an extension arm (12) for mounting the fixed abutting plate (13) and the movable abutting plate (14) and for extending into the joint gap, wherein the fixed abutting plate (13) is vertically passed through the extension arm (12) and is fixedly connected to the extension arm (12), and the movable abutting plate (14) is movably connected to an end of the extension arm (12) away from the fixed abutting plate (13); The template building mechanism (2) is located in the downstream process direction of the flatness limiting mechanism (1).

2. A concrete exterior wall joint construction device according to claim 1, characterized in that: The number of the movable abutment plates (14) is two and they are respectively used to abut against the outer sides of two adjacent prefabricated wall panels. The two movable abutment plates (14) are symmetrically arranged and rotatably connected to the end of the extension arm (12). The extension arm (12) is provided with an abutment driving assembly (15) for driving the two movable abutment plates (14) to open and close.

3. A concrete exterior wall joint construction device according to claim 2, characterized in that: The flatness limiting mechanism (1) also includes a vertical mounting frame (11) for mounting the extension arm (12); the extension arms (12) are multiple in number and are all arranged perpendicular to the extension arms (12); the extension arms (12) are parallel to each other and are arranged at intervals along the height direction of the vertical mounting frame (11); and two symmetrically arranged movable abutment plates (14) are provided on a side of each extension arm (12) away from the fixed abutment plate (13).

4. A concrete exterior wall joint construction device according to claim 1, characterized in that: The fixed abutment plate (13) and the movable abutment plate (14) are both provided with a hoisting guide surface (131) matching with the prefabricated floor slab on the top side, and the hoisting guide surface (131) is both arranged to be inclined downward toward the side close to the wall panel.

5. A concrete exterior wall joint construction device according to claim 1, characterized in that: The template erection mechanism (2) comprises an inner template component (22) supported on the inner side of the prefabricated wall panel, an outer template component (23) supported on the outer side of the prefabricated wall panel, and a bidirectional driving component (24) for driving the inner template component (22) and the outer template component (23) to move closer to each other or further away from each other; The inner template assembly (22) comprises an inner connecting plate (221) for cooperating with the bidirectional driving assembly (24), and a first inner template (222) and a second inner template (223) symmetrically arranged and rotatably connected to two sides of the inner connecting plate (221), the upper end of the inner connecting plate (221) having an inner connecting protrusion (2211) for connecting with the bidirectional driving assembly (24), and the inner connecting protrusion (2211) protrudes from the top sides of the first inner template (222) and the second inner template (223); The outer template assembly (23) comprises an outer connecting plate (231) for cooperating with the bidirectional driving assembly (24), and a first outer template (232) and a second outer template (233) symmetrically arranged and rotatably connected to both sides of the outer connecting plate (231), the upper end of the outer connecting plate (231) having an outer connecting protrusion (2311) for connecting with the bidirectional driving assembly (24), the outer connecting protrusion (2311) protruding from the top side of the first outer template (232) and the second outer template (233), the first outer template (232) and the second outer template (233) are both provided with a rebound torsion spring (234) for cooperating with the outer connecting plate (231).

6. A concrete exterior wall joint construction device according to claim 5, characterized in that: The template construction mechanism (2) further comprises an L-shaped mounting frame (21), wherein the L-shaped mounting frame (21) comprises a vertical frame (211) and a horizontal hanger (212) vertically arranged on the upper side of the vertical frame (211), wherein the horizontal hanger (212) is provided with a driving guide rail (213) on the lower side along the length direction for cooperating with the bidirectional driving assembly (24).

7. A concrete exterior wall joint construction device according to claim 6, characterized in that: The bidirectional drive assembly (24) comprises a bidirectional motor screw (241) and a U-shaped mounting seat (242); the motor of the bidirectional motor screw (241) is fixedly connected to the lower side of the U-shaped mounting seat (242); and the two ends of the screw of the bidirectional motor screw (241) are respectively threadedly engaged with the inner connecting protrusion (2211) and the outer connecting protrusion (2311).

8. A concrete exterior wall joint construction device according to claim 7, characterized in that: The invention also comprises a floor rail driving mechanism (3), wherein the floor rail driving mechanism (3) comprises a parallel floor rail (31) arranged on the floor, a first sliding platform (32) for installing the flatness limiting mechanism (1), and a second sliding platform (33) for installing the template building mechanism (2), wherein the length direction of the parallel floor rail (31) is arranged parallel to the edge of the floor, the first sliding platform (32) and the second sliding platform (33) are both slidingly installed on the parallel floor rail (31), and the first sliding platform (32) is provided with a longitudinal driving seat (322) for driving the flatness limiting mechanism (1) to move perpendicularly to the parallel floor rail (31).

9. A concrete exterior wall joint construction device according to claim 8, characterized in that: A synchronous connecting rod (331) for linkage is fixedly connected between the first sliding platform (32) and the second sliding platform (33), and the length of the synchronous connecting rod (331) is the same as the length of the prefabricated wall panel.

10. A method for joint construction of concrete exterior walls, applied to the device for joint construction of concrete exterior walls according to any one of claims 1 to 9, characterized in that: The steps include: S1, install a parallel ground rail (31) on the floor slab so that the parallel ground rail (31) is parallel to the edge of the floor slab, install a first sliding platform (32) and a second sliding platform (33) on the parallel ground rail (31), ensure that the first sliding platform (32) and the second sliding platform (33) can move smoothly on the ground rail, fix the vertical mounting frame (11) of the flatness limiting mechanism (1) on the first sliding platform (32), fix the L-shaped mounting frame (21) of the template building mechanism (2) on the second sliding platform (33), and connect the synchronous connecting rod (331); S2, adjusting the first sliding platform (32) so that the extension arm (12) is aligned with one side of the prefabricated wall panel, adjusting the movable abutment plate (14) to be in a retracted state, and adjusting the longitudinal drive seat (322) so that the extension plate drives the fixed plate to abut against the inner wall of the prefabricated wall panel; S3, adjusting the movable abutment plate (14) to an open state, so that the movable abutment plate (14) located at the side of the preceding station abuts against the outer wall of the prefabricated wall panel, using a hoisting device to drop the prefabricated wall panel from top to bottom between the fixed abutment plate (13) and the movable abutment plate (14) at the side of the subsequent station, so that the prefabricated wall panel falls smoothly onto the floor slab and lands accurately at the subsequent station, fixing the prefabricated wall panel on the floor slab, so that a joint gap is formed between the prefabricated wall panel and the prefabricated wall panel at the preceding station; S4, adjusting the movable abutment plate (14) to be in a retracted state, adjusting the longitudinal drive seat (322) so that the extension plate drives the movable abutment plate (14) to exit the joint gap, adjusting the first sliding platform (32) so that the extension arm (12) is aligned with one side of the prefabricated wall panel of the subsequent station, at which time, the second sliding platform (33) just drives the horizontal hanger (212) to be located above the joint gap of the previous station; S5, adjusting the driving guide rail (213) so that the outer formwork assembly (23) passes through the joint gap, ensuring that the inner formwork assembly (22) is located inside the prefabricated wall; S6, adjusting the bidirectional drive assembly (24) to ensure that the inner formwork assembly (22) is pressed against the inner wall of the prefabricated wall, and at the same time ensuring that the outer formwork assembly (23) is pressed against the outer wall of the prefabricated wall, thereby completing the construction of the casting formwork; S7, placing a steel cage in the joint gap and pouring concrete to complete the joint; S8, adjusting the first sliding platform (32) to the subsequent station, driving the flatness limiting mechanism (1) to guide the prefabricated wall panels of the subsequent station to be hoisted, at which time, the second sliding platform (33) drives the template building mechanism (2) to slide along both sides of the prefabricated wall panels of the previous station to the joint gap of the subsequent station and wait for the joint; S9, complete the joint of the entire wall, adjust the second sliding platform (33) so that the horizontal hanger (212) is located at the edge of one side of the wall, adjust the driving guide rail (213) and ensure that the outer formwork assembly (23) and the inner formwork assembly (22) are returned to the side close to the vertical stand (211); S10, dismantling the template construction mechanism (2) and the second sliding platform (33), dismantling the flatness limiting mechanism (1) and the first sliding platform (32), and dismantling the parallel ground rail (31).

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