Adjustable trolley dolly system

Abstract

The adjustable trolley formwork system of the present invention addresses the problems of poor adjustability of the existing trolley formwork system, non-adjustable support frame, and inconvenient movement. It comprises: two support gantry frames and multiple adjustable horizontal beams bolted together to form the support frame; an adjustable cantilever beam is mounted on the top horizontal beam, with its other end detachably connected to the side formwork assembly; each support gantry has a side formwork lift and a wall support lift on its two columns, with the other end of the side formwork lift connected to the side formwork assembly and the other end of the wall support lift abutting against the box culvert; multiple corner formwork lifts are respectively hinged to the top formwork assembly and the corner formwork panel; and bottom lifts are connected to the bottom of each column; a formwork moving trolley is located at the bottom of the support frame; two telescopic frames are symmetrically arranged and fitted onto both sides of the main frame; one end of each of the two support guide rods is connected to the top of the support lift, and the other end is connected to the telescopic frames on both sides; a control system is located on the support frame and is connected to the lift signals.

Description

Technical Field

[0001] This invention relates to the field of construction equipment technology, and in particular to an adjustable trolley formwork system. Background Technology

[0002] Currently, in the construction of various box culverts, pipe corridors, tunnels and other structures, traditional trolley formwork is usually used for on-site concrete pouring. Traditional trolley formwork is generally a steel formwork rail trolley formwork or a simple steel formwork trolley formwork. Traditional trolley formwork has defects such as poor formwork system adjustment capability, non-adjustable support frame size, and inconvenient trolley formwork movement. This results in large deviations in the concrete structure pouring size, poor adaptability to culverts with different cross-sectional sizes, and low trolley formwork movement efficiency. Summary of the Invention

[0003] To address the problems of poor adjustability of existing trolley mold frames, non-adjustable support frame dimensions, and low trolley mold frame movement efficiency, the purpose of this invention is to provide an adjustable trolley mold frame system.

[0004] The technical solution adopted by this invention to solve its technical problem is: an adjustable trolley mold frame system, comprising:

[0005] The formwork system includes a top formwork assembly, a side formwork assembly, and a corner formwork panel, each corresponding to the shape and position of the top surface, side surface, and corner of the cavity of the structure to be cast.

[0006] The support frame includes a support gantry, adjustable horizontal beams, adjustable cantilever beams, a corner formwork lift, a side formwork lift, a wall support lift, and a bottom lift. The support gantry is a rectangular frame formed by two vertically and horizontally spaced columns and two horizontal beams connected together. Two support gantry are vertically spaced apart, and multiple adjustable horizontal beams are horizontally arranged and bolted between the two support gantry. At least two adjustable cantilever beams are mounted on the top horizontal beam of each support gantry. The other end of each adjustable cantilever beam is detachably connected to the side formwork assembly. The detachable connection is provided. At least two pairs of side formwork lifters and one pair of wall support lifters are symmetrically installed on the two columns of each support gantry. The other end of the side formwork lifter is detachably connected to the side formwork assembly. The other end of the wall support lifter abuts against the wall of the cast-in-place box culvert structure. Multiple corner formwork lifters are symmetrically arranged at both ends of the top formwork assembly along its axis. One end of the corner formwork lifter is hinged to the edge of the top formwork assembly, and the other end is connected to the corner formwork panel pin. A bottom lifter is connected to the bottom of each column of the support gantry.

[0007] The formwork moving vehicle includes a main frame, telescopic frames, an adjustment device, and rollers. Multiple rollers are installed at the bottom of the main frame. Two telescopic frames are symmetrically arranged and fitted on both sides of the main frame. The adjustment device includes an adjustment lift vertically arranged along the axis of the main frame, and two support guide rods symmetrically arranged on both sides of the adjustment lift. One end of each support guide rod is connected to the top of the adjustment lift, and the other end of each support guide rod is connected to the two telescopic frames respectively. The telescopic movement of the adjustment lift drives the two telescopic frames to move synchronously in opposite directions along the axis, so that the ends of the two telescopic frames can correspond to the positions of the casters of the support frame. The formwork moving vehicle is set at the bottom of the support frame and is used to support and move the support frame and formwork system after demolding to the next construction section.

[0008] The control system is installed on the support frame and is connected to the corner formwork lift and the bottom lift via signal connection.

[0009] The adjustable trolley formwork system of the present invention includes a support frame, a formwork system, a formwork moving trolley, and a control system. Two vertically spaced support gantry frames and multiple adjustable horizontal beams positioned between them constitute the main body of the support frame. Adjusting the extension / retraction length of the adjustable horizontal beams ensures the width of the support frame meets construction requirements. A bottom lifting mechanism of the support gantry frames adjusts the height of the support frame, ensuring the height of the top formwork assembly is adapted to the height of the box culvert structure to be cast. The screw ends of the side formwork lifting mechanisms on the outer sides of the two support gantry columns are connected to the pin shafts of the side formwork assembly. At least one pair of adjustable cantilever beams connected to the top of the crossbeams of the support gantry frames... The other end is connected to the side formwork assembly via a pin. The adjustable cantilever beam can support the side formwork assembly and drive it to move back and forth along the X-axis. It can also finely adjust the height of the side formwork assembly along the Y-axis. Multiple corner formwork lifters are hinged to both ends of the top formwork assembly, with their other ends connected to the corner formwork panels. The corner formwork lifters extend and retract, causing the corner formwork panels to rotate around the ends of the top formwork assembly. The adjustable horizontal beams, adjustable cantilever beams, lifters, and control system, all mounted on the support frame, work together to automatically and accurately adjust the closing positions of the top formwork assembly, side formwork assembly, and corner formwork panels, ensuring the precision of the concrete pouring structure and improving the support frame's ability to accommodate different cross-sections. The adaptability of the concrete structure to different dimensions improves the standardization level and turnover efficiency of the support frame components. Two telescopic frames of the formwork moving vehicle are symmetrically arranged and fitted onto both sides of the main frame. One end of each of the two support guide rods of the adjustment device is connected to the adjusting lift on the main frame, and the other end is connected to the pins of the two telescopic frames respectively. The extension and retraction of the adjusting lift drives the two telescopic frames to move synchronously in opposite directions along the axis, ensuring that the ends of the two telescopic frames correspond to the positions of the casters on the support frame. After the bottom lift of the support frame retracts, the dismantled formwork system and support frame can be supported by the formwork moving vehicle and moved as a whole to the next construction site. The concrete pouring of the box culvert is completed segment by segment by segment. The adjustable trolley formwork system utilizes adjustable horizontal beams, adjustable cantilever beams, and a detachable connection between the elevator and the formwork system on the support frame to achieve automated adjustment of the width and height of the formwork system, as well as automated formwork closing and dismantling. Moreover, the formwork moving vehicle can carry the support frame and the entire formwork system to the next construction segment. This adjustable trolley formwork system has a high degree of automation, high equipment turnover efficiency, and safe and efficient overall movement, which effectively improves the level of industrialized construction, increases construction efficiency, enhances construction quality, and ensures construction safety.

[0010] Furthermore, the top mold assembly includes a top mold panel, multiple horizontal back ribs spaced apart at its bottom, and multiple quick-connectors for the back ribs. Each quick-connector consists of a U-shaped bending plate, a threaded rod penetrating the bending plate, and multiple nuts. One end of the threaded rod is rigidly connected to the nut, and the other end passes through the connection hole between the bending plate and the top mold panel and is locked in place by the nut. The horizontal back ribs are snapped into hooks on the bending plate, allowing them to be vertically snapped into the bottom of the top mold panel. The side mold assembly includes a side mold panel, horizontal back ribs, a first vertical back rib, a second vertical back rib, and quick-connectors for the back ribs. Multiple horizontal back ribs are connected to one side of the side mold panel via quick-connectors for the back ribs. Two first vertical back ribs... The two vertical back beams are vertically spaced and correspond to the positions of the two columns supporting the gantry. The first vertical back beam is bolted to the second horizontal back beam. The two channel steels of the first vertical back beam have corresponding elongated holes. The end of the screw of the side formwork lifting machine is embedded in the gap between the two channel steels. The pin passes through the elongated hole of the first vertical back beam and the screw of the side formwork lifting machine and is tightened. The two second vertical back beams are vertically spaced and correspond to the positions of the two adjustable cantilever beams. The second vertical back beams are bolted to the second horizontal back beam. The two channel steels of the second vertical back beam have corresponding elongated holes. The end of the adjustable cantilever beam is embedded in the gap between the two channel steels. The pin passes through the elongated hole of the second vertical back beam and the end of the adjustable cantilever beam and is tightened.

[0011] Furthermore, the corner mold frame of the corner mold panel is provided with a first connection hole and a second connection hole at both ends. The top surface of the corner mold frame near the first connection hole has a slot. The corner mold frame is connected to the top mold panel of the top mold assembly through the first connection hole. One end of the steel panel of the top mold panel can be snapped into the slot of the corner mold panel. The other end of the steel panel of the corner mold panel extends out of the corner mold frame as an extension end, which can be embedded in the groove at the end of the steel panel of the side mold panel. The corner mold lifting machine includes a lead screw, a connecting rod connected to one end of the lead screw, a screw drive device threaded to the other end of the lead screw, and an upper support fixed to the end of the screw drive device. The upper support is connected to the first pin of the cross back rib of the top mold assembly. The connecting rod at the end of the lead screw is connected to its pin through the second connection hole of the corner mold frame. The screw drive device is connected to the control system signal to control the extension and retraction of the lead screw of the corner mold lifting machine, thereby driving the corner mold panel to rotate around the first connection hole along the end of the top mold assembly.

[0012] Furthermore, each support gantry also includes an adjusting screw vertically connected to the top of the column. The adjusting screw is bolted to the horizontal back rib of the top mold assembly. Each support gantry also has a gantry bottom sleeve at the bottom of the column. The gantry bottom sleeve is formed by a vertically arranged cylinder and a base plate. The base plate is bolted to the bottom lift. The cylinder can be fitted inside the column, and the side wall of the cylinder and the bottom of the column are vertically spaced with multiple through holes. The gantry bottom sleeve is fitted to the bottom of the support gantry and connected by a pin through the through hole, so that the bottom lift can be detachably connected to the bottom of the support frame.

[0013] Furthermore, each supporting gantry also includes two pairs of connecting rods (first and second). The two pairs of connecting rods (first) are vertically fixed to the connection points of the columns and crossbeams, respectively. The end of connecting rod (first) near the proposed culvert structure is bolted to the side formwork lifting machine, and the other end is bolted to the adjustable horizontal beam. The pair of connecting rods (second) are vertically fixed to the outer sides of the bottom of the two columns, and the ends of connecting rods (second) are bolted to the wall support lifting machine. Each supporting gantry also has a cantilever beam support frame, and between the top pair of connecting rods (first) is a support frame connected to the horizontal beam. The beams are parallel to horizontal connecting rods. A pair of cantilever beam support frames are horizontally spaced and fixed to the crossbeams and horizontal connecting rods respectively. The adjustable cantilever beams are bolted to the cantilever beam support frames. Each support frame also includes a pair of caster connecting rods and a pair of casters. The bottom of the pair of connecting rods at the bottom is vertically connected to the pair of caster connecting rods. The connecting plate fixed to the bottom of each caster connecting rod is bolted to the caster. Each support frame also includes a secondary crossbeam parallel to a pair of crossbeams. The support frame also includes a working platform erected on top of the two secondary crossbeams.

[0014] Furthermore, the adjustable cantilever beam includes a cantilever beam, a support bracket, and a lower support bracket. The support bracket includes a base, a sleeve connected to the base, and a first bearing connected to the bottom of the sleeve by a pin. One end of the cantilever beam passes through the sleeve and is supported by the first bearing. The lower support bracket includes a U-shaped support frame, an adjustable screw connected to the top of the support frame, a second bearing and a shaft pressure block located at the bottom of the adjustable screw and connected to the pin of the support frame. The other end of the cantilever beam passes through the support frame and is located at the bottom of the second bearing and the shaft pressure block. Both the support bracket and the lower support bracket are bolted to the cantilever beam support frame. The two ends of the cantilever beam are respectively provided with a first pin hole and a second pin hole. The first pin hole of the cantilever beam, which is close to the box culvert structure to be cast, is connected to the second vertical back rib pin of the side formwork assembly. A stop block is installed in the second pin hole at the other end of the cantilever beam. The adjustable screw rotates downward to push the second bearing and the shaft pressure block to move along the Y-axis, so that the cantilever beam can support the side formwork assembly to rotate around the first bearing of the support bracket in the XY plane.

[0015] Furthermore, the adjustable horizontal beam includes a first horizontal beam made of I-beams and a second horizontal beam made of two spaced and oppositely arranged channel steels. The web of the first horizontal beam is adapted to the gap between the two channel steels of the second horizontal beam, so that the first horizontal beam can be fitted into the gap of the second horizontal beam and slide relative to it. The web of both the first and second horizontal beams is provided with multiple spaced bolt holes. Positioning bolts pass through the bolt holes of the first and second horizontal beams and are locked in place. The other end of both the first and second horizontal beams is vertically connected to a side plate with bolt holes. The side plates of the first and second horizontal beams are respectively bolted to the connecting rods of the two supporting portal frames.

[0016] Furthermore, the mold frame moving vehicle also includes hollow crossbeams, an adjusting lift, and supporting guide rods. The main frame is a frame structure composed of at least two horizontal bars and two vertical bars arranged in a crisscross pattern. The two hollow crossbeams are parallel and spaced apart, and the hollow crossbeams vertically penetrate the two vertical bars of the main frame. Two telescopic frames are symmetrically arranged on both sides of the main frame. The telescopic frame includes two parallel and spaced sliding rods, a connecting rod connecting the two sliding rods, an ear plate located in the middle of the connecting rod, and a bracket connecting the sliding rod and the connecting rod. The bracket includes a supporting lift fixed to the end of the sliding rod and a screw top connected to the supporting lift. The end plate; the sliding rods of the two telescopic frames are respectively embedded at both ends of the hollow crossbeam. The adjusting lift is fixed in the middle of the main frame. Two support guide rods are symmetrically arranged along the axis of the main frame. One end of each support guide rod is connected to the top of the adjusting lift, and the other end of each support guide rod is connected to the ear plate pin of the connecting rod of the telescopic frames on both sides. The screw of the adjusting lift extends and retracts along the Y-axis, and drives the two telescopic frames to move synchronously in opposite directions along the X-axis through the support guide rods, thereby adjusting the distance between the brackets on the two telescopic frames along the X-axis, so that the brackets on the two telescopic frames can correspond to the position of the support frame column.

[0017] Furthermore, the formwork moving vehicle also includes telescopic guide rods. Two telescopic guide rods are vertically connected to both sides of two longitudinal rods. Each telescopic guide rod includes two parallel hollow crossbars fixed to the ends of the longitudinal rods, and two support rods embedded in the two hollow crossbars. The two support rods are installed in opposite directions. The side walls of the hollow crossbars and support rods are provided with multiple bolt holes at equal intervals. The ends of the two support rods are connected to guide wheels. After the two support rods extend in opposite directions and the guide wheels abut against the cast-in-place box culvert structure wall, positioning bolts pass through the bolt holes on the hollow crossbars and support rods and lock them in place, so that the formwork moving vehicle can maintain an equal distance from the wall during sliding.

[0018] Furthermore, the formwork moving vehicle also includes a main rod and a support rod arranged parallel to the hollow crossbeam. The main rod is located in the middle of the main frame, and the support rod is located between the hollow crossbeam and the main rod. The adjusting elevator is vertically fixed to the main rod, the winch is fixed to the support rod, and the fixed pulley is fixed to the hollow crossbeam. The adjusting elevator, winch, and fixed pulley are all arranged along the axis of the main frame. One end of the wire rope is wound around the winch, and the other end passes over the fixed pulley and is connected to the anchor located on the axis of the cast-in-place box culvert structure. Attached Figure Description

[0019] Figure 1 A perspective view of the adjustable trolley frame system of the present invention installed inside a culvert;

[0020] Figure 2 This is a schematic diagram of the template system in one embodiment of the present invention;

[0021] Figure 3 for Figure 2 An enlarged view of part B;

[0022] Figure 4 This is a schematic diagram of the corner mold panel in one embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the top mold assembly in one embodiment of the present invention;

[0024] Figure 6 This is a schematic diagram of the structure of the quick-connect component with back ribs in one embodiment of the present invention;

[0025] Figure 7 for Figure 2 AA section view;

[0026] Figure 8 This is a perspective view of the support frame in the adjustable trolley mold frame system of the present invention;

[0027] Figure 9 This is a perspective view of the supporting gantry in one embodiment of the present invention;

[0028] Figure 10 This is a perspective view of an adjustable cantilever beam according to an embodiment of the present invention;

[0029] Figure 11 This is a schematic diagram of the adjustable horizontal beam in one embodiment of the present invention;

[0030] Figure 12 for Figure 11 CC section view;

[0031] Figure 13 This is a perspective view of the bottom sleeve of the gantry in one embodiment of the present invention;

[0032] Figure 14 This is a schematic diagram showing the dimensional relationships of the main components in an adjustable trolley mold frame system according to an embodiment of the present invention;

[0033] Figure 15 This is a perspective view of a mold frame moving vehicle in one embodiment of the present invention;

[0034] Figure 16 This is a top view of the mold frame moving vehicle in one embodiment of the present invention;

[0035] Figure 17 This is a perspective view of the main frame of the mold frame moving vehicle in one embodiment of the present invention;

[0036] Figure 18 This is a perspective view of the telescopic frame of the mold frame moving vehicle in one embodiment of the present invention;

[0037] Figure 19 for Figure 15A side view along the Z-axis;

[0038] Figure 20 for Figure 19 A schematic diagram of the telescopic guide rod after it has retracted.

[0039] Figure 21 for Figure 15 A side view along the X-axis;

[0040] Figure 22 This is a schematic diagram of the support rod of the mold frame moving vehicle in one embodiment of the present invention;

[0041] Figures 23 to 27 A schematic diagram illustrating the steps involved in constructing a box culvert using an adjustable trolley formwork system;

[0042] Figure 28 This is a perspective view of the construction process of an adjustable trolley formwork system according to an embodiment of the present invention.

[0043] The numbers in the diagram are as follows:

[0044] 1. Box culvert structure already poured; 2. Box culvert structure to be poured.

[0045] Support frame 100; Support gantry 10; Column 11; Horizontal beam 12; Caster connecting rod 13; Secondary horizontal beam 14; Connecting rod one 15; Connecting rod two 16; Horizontal connecting rod 17; Adjustable horizontal beam 20; First horizontal beam 21; Second horizontal beam 23; Side plate 24; Adjusting screw 41; Side formwork lifting machine 42; Wall support lifting machine 43; Gantry bottom sleeve 45; Cylinder 451; Base plate 452; Bottom lifting machine 46; Caster 47; Angle formwork lifting machine 50; Screw 51; Connecting rod 52; Screw drive device 54; Upper support 55; Working platform 60;

[0046] Template system 200; Top formwork panel 211; Horizontal back rib 1 212; Back rib quick connector 213; Bending plate 213a; Screw 213b; Side formwork panel 224; Horizontal back rib 225; First vertical back rib 226; Second vertical back rib 227; Corner formwork frame 231; Steel panel of corner formwork panel 232; Slot 234; Connecting hole 1 235; Connecting hole 2 236; Extension end 237; Adjustable cantilever beam 30; Cantilever beam 31; Sleeve 32; Base 33; First bearing 34; Support frame 35; Adjustable screw 36; Second bearing 37; Pin hole 1 38; Pin hole 2 39;

[0047] 300; main frame; 310; hollow crossbar; 311; longitudinal bar; 312; support rod; 314; guide wheel; 315; main rod; 316; hollow crossbeam; 317; support rod; 318; telescopic frame; 320; connecting rod; 321; sliding rod; 322; ear plate; 323; support lift; 324; pallet; 325; adjusting lift; support guide rod; 342; roller; 350; control system; 400; wire rope; 510; anchor; 500. Detailed Implementation

[0048] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clearly illustrate the embodiments of the present invention. For ease of description, the terms "upper" and "lower" used below are consistent with the upper and lower directions in the drawings, but this should not be construed as a limitation of the technical solution of the present invention.

[0049] Example 1

[0050] This embodiment takes the concrete pouring construction of a box culvert as an example. An XYZ rectangular coordinate system is established with the width direction of the box culvert as the X-axis, the height direction as the Y-axis, and the length extension direction as the Z-axis. The box culvert in this embodiment consists of a pre-cast box culvert structure 1 and a proposed box culvert structure 2 connected as a single unit. The pre-cast box culvert structure 1 includes a pre-cast base slab and walls of a certain height. The proposed box culvert structure 2 is located on top of the pre-cast box culvert structure 1. The following section combines... Figures 1 to 22 The adjustable trolley mold frame system of the present invention includes:

[0051] The formwork system 200 includes a top formwork assembly, a side formwork assembly, and a corner formwork panel, which correspond to the shape and position of the top surface, side surface, and corner of the inner cavity of the box culvert structure 2 to be cast.

[0052] The support frame 100 includes a support gantry 10, adjustable horizontal beams 20, adjustable cantilever beams 30, a corner formwork lift 50, a side formwork lift 42, a wall support lift 43, and a bottom lift 46. The support gantry 10 is a rectangular frame formed by two vertically and horizontally spaced columns 11 and two horizontal beams 12. Two support gantry 10s are vertically spaced, and multiple adjustable horizontal beams 20 are horizontally arranged and bolted between the two support gantry 10s to form the main frame. At least two adjustable cantilever beams 30 are mounted on the top horizontal beam 12 of each support gantry 10. The other end is detachably connected to the side formwork assembly. At least two pairs of side formwork lifters 42 and a pair of wall support lifters 43 are symmetrically arranged on the two columns 11 of each support gantry 10. The other end of the side formwork lifter 42 is detachably connected to the side formwork assembly. The other end of the wall support lifter 43 abuts against the wall of the cast-in-place box culvert structure 1. Multiple corner formwork lifters 50 are symmetrically arranged at both ends of the top formwork assembly along its axis. One end of the corner formwork lifter 50 is hinged to the edge of the top formwork assembly, and the other end is connected to the corner formwork panel pin. A bottom lifter 46 is connected to the bottom of each column 11 of the support gantry 10.

[0053] The formwork moving vehicle 300 includes a main frame 310, a telescopic frame 320, an adjustment device, and rollers 350. Multiple rollers 350 are installed at the bottom of the main frame 310. Two telescopic frames 320 are symmetrically arranged and fitted on both sides of the main frame 310. The adjustment device includes an adjustment lift 341 vertically arranged along the axis of the main frame 310, and two support guide rods 342 symmetrically arranged on both sides of the adjustment lift 341. One end of each support guide rod 342 is connected to the top of the adjustment lift 341, and the other end of each support guide rod 342 is connected to the two telescopic frames 320 respectively. The extension and retraction of the adjustment lift 341 drives the two telescopic frames 320 to move synchronously in opposite directions along the axis, so that the ends of the two telescopic frames 320 can correspond to the positions of the casters 47 of the support frame 100. The formwork moving vehicle 300 is set at the bottom of the support frame 100 and is used to support and move the support frame 100 and the formwork system 200 after demolding to the next construction section.

[0054] The control system 400 is mounted on the support frame 100 and is at least signal-connected to the corner formwork lift 50 and the bottom lift 46.

[0055] The adjustable trolley formwork system of the present invention includes a support frame 100, a formwork system 200, a formwork moving trolley 300, and a control system 400. Two vertically spaced support gantry frames 10 and multiple adjustable horizontal beams 20 positioned between them constitute the main body of the support frame 100. Adjusting the extension length of the adjustable horizontal beams 20 allows the width of the support frame 100 to meet construction requirements. A bottom lifting mechanism 46 of the support gantry 10 is used to adjust the height of the support frame 100, ensuring the height of the top formwork assembly is adapted to the height of the box culvert structure 2 to be cast. The screw ends of the side formwork lifting mechanisms 42 on the outer sides of the columns 11 of the two support gantry frames 10 are connected to the pin shafts of the side formwork assembly, and are connected to the top of the crossbeams 12 of the support gantry frame 10. One end of each pair of adjustable cantilever beams 30 is connected to the side formwork assembly via a pin. The adjustable cantilever beams 30 can support the side formwork assembly and drive it to move back and forth along the X-axis. They can also finely adjust the height of the side formwork assembly along the Y-axis. Multiple corner formwork lifts 50 are hinged to both ends of the top formwork assembly, with their other ends connected to the corner formwork panels. The corner formwork lifts 50 extend and retract, causing the corner formwork panels to rotate around the ends of the top formwork assembly. The adjustable horizontal beams, adjustable cantilever beams, lifts, and control system mounted on the support frame 100 work together to automatically and accurately adjust the closing positions of the top formwork assembly, side formwork assembly, and corner formwork panels, ensuring the accuracy of the concrete pouring structure and improving the adaptability of the support frame 100 to concrete structures with different cross-sectional dimensions. This improves the standardization level and turnover efficiency of the components of the support frame 100; the two telescopic frames 320 of the formwork moving vehicle 300 are symmetrically arranged and sleeved on both sides of the main frame 310. One end of the two support guide rods 342 of the adjustment device is connected to the adjustment lift 341 on the main frame 310, and the other end is connected to the pin shafts of the two telescopic frames 320 respectively. The extension and retraction of the adjustment lift 341 drives the two telescopic frames 320 to move synchronously in opposite directions along the axis, so that the ends of the two telescopic frames 320 can correspond to the positions of the casters 47 of the support frame 100. After the bottom lift 46 of the support frame 100 is retracted, the demolded formwork system 200 and the support frame 100 can be supported on the formwork moving vehicle 300 and move with it. The system moves to the next construction section, repeating this process section by section to complete the concrete pouring of the box culvert. The adjustable trolley formwork system utilizes adjustable horizontal beams 20 and adjustable cantilever beams 30 installed on the support frame 100, and the elevator is detachably connected to the formwork system 200. This enables automated adjustment of the width and height of the formwork system 200, as well as automated closing and dismantling of the formwork system 200. Moreover, the formwork moving vehicle 300 can carry the support frame 100 and the formwork system 200 as a whole to move to the next construction section. This adjustable trolley formwork system has a high degree of automation, high equipment turnover efficiency, and safe and efficient overall movement, effectively improving the level of industrialized construction, increasing construction efficiency, enhancing construction quality, and ensuring construction safety.

[0056] In this embodiment, the top mold panel 211, side mold panel 224, and corner mold panel are all made of a frame welded from structural steel, and steel panels fixed to the outside of the frame. The horizontal back ribs and vertical back ribs are both made of two channel steels with openings facing outwards and spaced apart, and structural steel materials welded to the webs of the two channel steels respectively. Figure 5 and Figure 6 As shown, the top mold assembly includes a top mold panel 211, multiple horizontal back ribs 212 spaced apart at its bottom, and multiple quick-connect fittings 213 for the back ribs. Each quick-connect fitting 213 consists of a U-shaped bending plate 213a, a screw 213b passing through the bending plate 213a, and multiple nuts. One end of the screw 213b is rigidly connected to a nut, and the other end passes through the connection hole between the bending plate 213a and the top mold panel 211 and is locked in place by the nut. The horizontal back ribs 212 are snapped into the hooks of the bending plate 213a, allowing them to be vertically snapped into the bottom of the top mold panel 211. The multiple horizontal back ribs 212 are assembled onto the top mold panel 211 via the quick-connect fittings 213, making assembly and disassembly convenient and quick, thus improving the installation efficiency of the template system 200.

[0057] like Figure 7 As shown, the side mold assembly includes a side mold panel 224, a second horizontal back rib 225, a first vertical back rib 226, a second vertical back rib 227, and a back rib quick connector. Multiple second horizontal back ribs 225 are connected to one side of the side mold panel 224 through the back rib quick connector. Specifically, the screw of the back rib quick connector passes through the side mold panel 224 and is locked and fixed by a nut. The second horizontal back rib 225 is snapped into the hook at the end of the bending plate, so that the second horizontal back rib 225 can be vertically snapped into one side of the side mold panel 224. The fastening between the side mold panel 224 and the second horizontal back rib 225 is achieved by rotating and tightening the nut. Two first vertical back ribs 226 are vertically spaced and correspond to the positions of the two columns 11 of the supporting gantry 10. The first vertical back ribs 226 are bolted to the second horizontal back rib 225. The two channel steels of the first vertical back ribs 226 are provided with corresponding elongated holes. The end of the screw of the side mold lifting machine 42 is embedded in the gap between the two channel steels. The pin passes through the elongated hole of the first vertical back rib 226 and the screw of the side mold lifting machine 42 and is fastened. The side mold lifting machine 42 can move vertically along the elongated hole of the first vertical back rib 226 without bearing the weight of the side mold assembly. Two second vertical back ribs 227 are vertically spaced and correspond to the positions of two adjustable cantilever beams 30. The second vertical back ribs 227 are bolted to the second horizontal back rib 225. The two channel steels of the second vertical back ribs 227 are provided with corresponding elongated holes. The end of the adjustable cantilever beam 30 is inserted into the gap between the two channel steels. The pin passes through the elongated hole of the second vertical back rib 227 and the end of the adjustable cantilever beam 30 and is fastened. The adjustable cantilever beam 30 carries the side mold assembly and can drive the side mold assembly to move along the X and Y directions for fine-tuning of its position.

[0058] like Figures 2 to 4As shown, the shape of the corner formwork panel matches the corner of the box culvert structure 2 to be cast. The corner formwork frame 231 has a first connection hole 235 and a second connection hole 236 at both ends. A groove 234 is located on the top surface of the corner formwork frame 231 near the first connection hole 235. The corner formwork frame 231 is pin-connected to the top formwork panel 211 of the top formwork assembly via the first connection hole 235. One end of the steel panel of the top formwork panel 211 can be snapped into the groove 234 of the corner formwork panel. The other end of the steel panel 232 of the corner formwork panel extends out of the corner formwork frame 231 as an extension end 237, which can be embedded into the groove at the end of the steel panel of the side formwork panel 224. Because the steel panels at the connection points of the top formwork panel 211, the corner formwork panel, and the side formwork panel 224 are sequentially stacked, the formwork panel connections are tightly joined, ensuring the casting quality of the box culvert concrete structure.

[0059] like Figure 2 and Figure 3 As shown, the corner mold lifting machine 50 includes a lead screw 51, a connecting rod 52 connected to one end of the lead screw 51, a screw drive device 54 threadedly connected to the other end of the lead screw 51, and an upper support 55 fixed to the end of the screw drive device 54. The upper support 55 is connected to the horizontal back rib 212 of the top mold assembly by a pin. The connecting rod 52 at the end of the lead screw 51 is connected to its pin through the connecting hole 236 of the corner mold frame 231. The screw drive device 54 is connected to the control system 400 by a signal. The control system 400 controls the extension and retraction of the lead screw 51 of the corner mold lifting machine 50, which drives the corner mold panel to rotate around the connecting hole 235 as the center along the end of the top mold assembly, thereby realizing the automatic mold closing and demolding of the corner mold panel.

[0060] like Figure 8 and Figure 9 As shown, each support gantry 10 also includes two pairs of connecting rods 15 and one pair of connecting rods 16. The two pairs of connecting rods 15 are vertically fixed to the connection points of the columns 11 and the crossbeams 12, respectively. One end of the connecting rod 15 near the box culvert structure 2 to be cast is bolted to the side formwork lift 42, and the other end of the connecting rod 15 is bolted to the adjustable horizontal beam 20. The pair of connecting rods 16 are vertically fixed to the outer sides of the bottom of the two columns 11, and the ends of the connecting rods 16 are bolted to the wall support lift 43. Each support gantry 10 is also provided with a cantilever beam support frame 18. A horizontal connecting rod 17 parallel to the crossbeam 12 is provided between the pair of connecting rods 15 at the top. The pair of cantilever beam support frames 18 are horizontally spaced and fixed to the crossbeams 12 and the horizontal connecting rods 17, respectively. A support plate is provided on the top of the cantilever beam support frame 18 for fixing the adjustable cantilever beam 30. Because the pair of connecting rods 15, the crossbeam 12, and the horizontal connecting rod 17 together form a closed rectangular support plane, they can provide stable support for the adjustable cantilever beam 30. Figure 8 and Figure 9As shown, each support gantry 10 also includes a pair of caster connecting rods 13 and a pair of casters 47. The bottom of the pair of connecting rods 15 located at the bottom is vertically connected to the pair of caster connecting rods 13. The connecting plate fixed to the bottom end of each caster connecting rod 13 is bolted to the caster 47. The casters 47 of the support gantry 10 can support the top of the two telescopic frames 320 of the mold frame moving vehicle 300.

[0061] like Figure 8 and Figure 9 As shown, each support frame 10 also includes an adjusting screw 41 vertically connected to the top of the column 11. A connecting plate fixed to the top of the adjusting screw 41 is bolted to the transverse back rib 212 of the top mold assembly. The upper and lower support threads of the adjusting screw 41 are left-handed and right-handed, respectively, used for fine-tuning the height of the top mold assembly. Figure 13 As shown, each support gantry 10 has a bottom sleeve 45 at the bottom of its column 11. The bottom sleeve 45 is formed by a vertically arranged cylinder 451 and a base plate 452. The base plate 452 is bolted to the bottom lifting mechanism 46. The cylinder 451 can be fitted inside the column 11. The side wall of the cylinder 451 and the bottom of the column 11 are vertically spaced with multiple through holes. The bottom sleeve 45 is fitted on the bottom of the support gantry 10 and connected by a pin through the through hole, so that the bottom lifting mechanism 46 can be detachably connected to the bottom of the support frame 100. The height of the support gantry 10 can be indirectly adjusted by changing the relative position between the bottom sleeve 45 and the column 11.

[0062] like Figure 8 and Figure 9 As shown, each support gantry 10 also includes a secondary crossbeam 14 arranged in parallel between a pair of crossbeams 12, and the support frame 100 also includes a working platform 60 mounted on top of the two secondary crossbeams 14. The working platform 60 is used to provide a safe and reliable support surface for construction workers to work at height.

[0063] like Figure 10As shown, the adjustable cantilever beam 30 includes a cantilever beam 31, a support bracket, and a pressing bracket. The support bracket includes a base 33, a sleeve 32 connected to the base 33, and a first bearing 34 pinned to the bottom of the sleeve 32. One end of the cantilever beam 31 passes through the sleeve 32 and is supported by the first bearing 34. The pressing bracket includes a U-shaped support frame 35, an adjustable screw 36 connected to the top of the support frame 35, a second bearing 37 located at the bottom of the adjustable screw 36 and pinned to the support frame 35, and a pressing bracket. The cantilever beam 31 has one end that passes through the support frame 35 and is located at the bottom of the second bearing 37 and the axial pressure block. Both the support support and the lower pressure support are bolted to the cantilever beam support frame 18. The two ends of the cantilever beam 31 are respectively provided with pin hole 1 38 and pin hole 2 39. The pin hole 1 38 of the cantilever beam 31 near the box culvert structure 2 to be cast is connected to the pin shaft of the second vertical back rib 227 of the side formwork assembly. A stop block (not shown in the figure) is installed in the pin hole 2 39 at the other end of the cantilever beam 31 to prevent the cantilever beam 31 from sliding out of the lower pressure support. The adjustable screw 36 rotates downward to push the second bearing 37 and the axial pressure block to move along the Y-axis, so that the cantilever beam 31 can support the side formwork assembly to rotate a certain angle around the first bearing 34 of the support support in the XY plane. This not only allows for fine adjustment of the installation position of the side formwork assembly, but also facilitates the rapid closing and disassembly of the side formwork assembly.

[0064] like Figure 11 and Figure 12 As shown, the adjustable horizontal beam 20 includes a first horizontal beam 21 made of I-beams and a second horizontal beam 23 made of two channel steels spaced apart and opposite to each other. The web of the first horizontal beam 21 is adapted to the gap between the two channel steels of the second horizontal beam 23, so that the first horizontal beam 21 can be fitted into the gap of the second horizontal beam 23 and slide relative to each other. The webs of the first horizontal beam 21 and the second horizontal beam 23 are provided with multiple bolt holes spaced apart. The positioning bolts pass through the bolt holes of the first horizontal beam 21 and the second horizontal beam 23 and are locked and fixed. The other ends of the first horizontal beam 21 and the second horizontal beam 23 are vertically connected to side plates 24 with bolt holes. The side plates 24 of the first horizontal beam 21 and the second horizontal beam 23 are respectively bolted to the connecting rods 15 of the two side support frames 10. By adjusting the length of the adjustable horizontal beam 20, the width of the support frame 100 along the X-axis direction is adapted to the width of the box culvert structure 2 to be cast.

[0065] like Figures 15 to 18 As shown, the formwork moving vehicle 300 also includes hollow crossbeams 317, an adjusting lift 341, and supporting guide rods 342. The main frame 310 is a frame structure composed of at least two horizontal bars and two vertical bars 312 arranged in a crisscross pattern. The two hollow crossbeams 317 are parallel and spaced apart, and the hollow crossbeams 317 vertically penetrate the two vertical bars 312 of the main frame. Two telescopic frames 320 are symmetrically arranged on both sides of the main frame 310. Figure 18As shown, the telescopic frame 320 includes two parallel and spaced-apart sliding rods 322, a connecting rod 321 connecting the two sliding rods 322, an ear plate 323 disposed in the middle of the connecting rod 321, and a bracket connecting the sliding rods 322 and the connecting rod 321. The bracket includes a support lift 324 fixed to the end of the sliding rod 322, and a support plate 325 connected to the top of the lead screw of the support lift 324. The bracket is used to support the support frame 100 and the template system 200 after demolding. Figure 15 and Figure 16 As shown, the sliding rods 322 of the two telescopic frames 320 are respectively embedded at both ends of the hollow crossbeam 317. The adjusting lift 341 is fixed in the middle of the main frame 310. Two support guide rods 342 are symmetrically arranged along the axis of the main frame 310. One end of each of the two support guide rods 342 is connected to the top of the adjusting lift 341. The other end of each of the two support guide rods 342 is connected to the ear plate 323 pin of the connecting rod 321 of the telescopic frames 320 on both sides. The screw of the adjusting lift 341 extends and retracts along the Y-axis. Through the support guide rods 342, the two telescopic frames 320 move synchronously in opposite directions along the X-axis, thereby adjusting the spacing of the brackets on the two telescopic frames 320 along the X-axis, so that the brackets on the two telescopic frames 320 can correspond to the position of the column 11 of the support frame 100. The formwork moving vehicle 300 can carry the support frame 100 and the demolded formwork system 200 to the next construction section.

[0066] like Figures 19 to 22 As shown, the mold frame moving vehicle 300 also includes telescopic guide rods. Two telescopic guide rods are vertically connected to both sides of the two longitudinal rods 312, that is, the telescopic guide rods replace the crossbars and together with the longitudinal rods 312 form the main frame 310. The telescopic guide rods include two hollow crossbars 311 fixed to the ends of the longitudinal rods 312 and two support rods 314 respectively embedded in the two hollow crossbars 311. The two support rods 314 are installed in opposite directions. The hollow crossbars 311 and the support rods The side walls of 314 are provided with multiple bolt holes at equal intervals. The ends of the two support rods 314 are connected to guide wheels 315. After the two support rods 314 extend in opposite directions and the guide wheels 315 abut against the wall of the cast-in-place box culvert structure 1, the positioning bolts pass through the bolt holes on the hollow crossbar 311 and the support rods 314 and are locked and fixed, so that the formwork moving vehicle 300 can maintain an equal distance from the wall during the sliding process, and avoid the formwork moving vehicle 300 from deviating during the movement and causing safety accidents.

[0067] like Figure 15 and Figure 28As shown, the formwork moving vehicle 300 also includes a main rod 316 and a support rod 318 arranged parallel to the hollow crossbeam 317. The main rod 316 is located in the middle of the main frame, and the support rod 318 is located between the hollow crossbeam 317 and the main rod 316. An adjusting elevator 341 is vertically fixed to the main rod 316, a winch is fixed to the support rod 318, and a fixed pulley is fixed to the hollow crossbeam 317. The adjusting elevator 341, the winch, and the fixed pulley (not shown in the figure) are all arranged along the axis of the main frame. One end of the wire rope 510 is wound around the winch, and the other end passes over the fixed pulley and is connected to the anchor 500 located on the axis of the cast-in-place box culvert structure 1. After the formwork moving vehicle 300 carries the support frame 100 and the formwork system 200 after demolding, the winch retracts the wire rope 510, and the formwork moving vehicle 300 can automatically move the formwork system 200 and the support frame 100 as a whole along the construction route.

[0068] In this embodiment, the side mold lifting machine 42, the bottom lifting machine 46, the support lifting machine 324, and the adjusting lifting machine 341 can all be screw jacks. Of course, this is just an example, and the lifting machine is not limited to this.

[0069] Example 2

[0070] Combination Figures 1 to 13 The installation method of the adjustable trolley mold frame system of the present invention is described below, with specific steps as follows:

[0071] S10: Prefabricate top formwork components, side formwork components, and corner formwork panels that meet the dimensions required for box culvert construction, such as... Figures 2 to 7 As shown, the corner formwork lifting machine 50 pin is connected to the end of the horizontal back rib 212 of the top formwork assembly. The top formwork panel 211 is not installed yet. The side formwork assembly is assembled. Wooden blocks are laid on the ground. The side formwork panel 224 is laid flat on the wooden blocks with the steel panel facing down. The wooden blocks protect the steel panel. The back rib quick connector 213 is used to fix multiple horizontal back ribs 225 to the side formwork panel 224. Then, multiple first vertical back ribs 226 and multiple second vertical back ribs 227 are bolted to the horizontal back ribs 225.

[0072] S12: Send Figures 8 to 12As shown, assembling the support frame 100: Adjust the adjustable horizontal beam 20 to the designed length and lock it in place. Place two support frames 10 flat. Bolt the bottom lifting platform 46 to the bottom of the columns 11 of the two support frames 10 and adjust it to the designed height. Install four adjustable horizontal beams 20 on one of the support frames 10 and erect it for temporary support. Bolt the other support frame 10 to the other end of the four adjustable horizontal beams 20 to form the main support structure. Construction workers install other components of the support frame 100 from bottom to top. Install the wall support lifting platform 43 on the connecting rod 2 16. Install the side formwork lifting platform 42 on the outside of the connecting rod 1 15 at the bottom. Lay the working platform 60 on the top of the two secondary crossbeams 14. Then... Construction workers stand on the work platform 60 and install multiple side formwork lifts 42 on the outside of the connecting rod 15 at the top. They install cantilever beam support frames 18 on the top of the crossbeam 12 and the horizontal connecting rod 17. The adjustable cantilever beam 30 is not installed temporarily to prevent it from falling. An adjusting screw 41 is installed on the top of the column 11. Four bottom lifts 46 are placed on the ground to suitable installation positions. The support frame 100, assembled by four-point lifting, is placed on top of the four bottom lifts 46. The bottom lifts 46 are bolted to the bottom of the column 11. The electrical control box of the control system 400 is installed on the support frame 100. Construction workers connect the adjustable cantilever beam 30 to the cantilever beam support frame 18 on the work platform 60 and temporarily fix the adjustable cantilever beam 30.

[0073] S13: Assembled formwork system 200: Hoist the hinged top formwork assembly and corner formwork lift 50 to the top of the support frame 100, bolt the horizontal back rib 212 of the top formwork assembly to the upper support of the adjusting screw 41, hoist the top formwork panel 211 and place it on top of the horizontal back rib 212, and connect and fix the two using the back rib quick connector 213. The electrical control box of the control system 400 is electrically connected to the corner formwork lift 50, the side formwork lift 42, the bottom lift 46, and the wall support lift 43, and the electrical control debugging of the extension and retraction of each lift is performed; adjust the side formwork lift 4... 2. Adjust the adjustable cantilever beam 30 to a suitable length, hoist the side formwork assembly so that the second vertical back rib 227 and the adjustable cantilever beam 30 are connected by a pin. The adjustable cantilever beam 30 bears the weight of the side formwork assembly. Adjust the side formwork lift 42 to a suitable length. The screw of the side formwork lift 42 is connected to the first vertical back rib 226 by a pin. Adjust the screw of the corner formwork lift 50 to a suitable length and connect it to the corner formwork frame 231 by a pin. The extension and retraction of the corner formwork lift 20 can drive the corner formwork panel to rotate around the end of the top formwork assembly, which facilitates the closing and disassembly of the corner formwork panel and avoids conflict and collision between the corner formwork panel and the side formwork assembly.

[0074] Example 3

[0075] Combination Figures 1 to 14 The adjustment method of the adjustable trolley mold frame system of the present invention is described in detail below:

[0076] Height adjustment steps of the side formwork assembly: In the closed mold state, rotate the adjustable screw 36 of the adjustable cantilever beam 30 to press down the support, so that the second bearing 37 and the axial pressure block push the cantilever beam 31 to carry the side formwork assembly to rotate a certain angle around the first bearing 34 of the support seat in the XY plane until the side formwork panel 224 and the corner formwork panel are completely fitted. Adjust the height of the side formwork assembly by using the adjustable cantilever beam 30. On the one hand, it can avoid the problem that the side formwork panel 224 and the corner formwork panel are not tightly fitted due to insufficient height of the side formwork assembly. On the other hand, it can avoid the torsion of the side formwork assembly in the YZ plane due to different heights on both sides after the installation of the side formwork assembly is completed.

[0077] Height adjustment steps of the top formwork assembly: In the closed mold state, use a surveying instrument to detect the flatness of the top formwork assembly, and finely adjust the height of the top formwork assembly by rotating the nut of the adjusting screw 41 until the levelness of the top formwork assembly meets the construction requirements. Fine-tuning the height of the top formwork assembly by using the adjusting screw 41 can avoid the problem that the top formwork assembly is uneven in the XZ plane due to installation errors.

[0078] As Figure 14 shown, the size adjustment steps of the support frame 100 are as follows:

[0079] S1: Adjust the length of the adjustable horizontal beam 20 and adjust the size of the support frame 100 along the X-axis direction so that l satisfies the following formula 1:

[0080] Minimum value of N ≤ (L - l) / 2 - M ≤ Maximum value of N (Formula 1)

[0081] Where, L is the net distance between the two side walls of the proposed cast culvert structure 2;

[0082] l is the width of the support frame 100;

[0083] M is the thickness of the side formwork assembly;

[0084] N is the total length of the side formwork elevator 42;

[0085] S2: Adjust the size of the support frame 100 along the Y-axis direction so that h satisfies the following formula 2:

[0086] (Minimum value of (K + G)) < H - J - h < (Maximum value of (K + G)) (Formula 2)

[0087] Where, H is the net height of the proposed cast culvert structure 2;

[0088] h is the height of the column 11 of the support frame 100;

[0089] J is the thickness of the top formwork assembly;

[0090] K is the height of the adjusting screw 41;

[0091] G represents the height of the bottom lift, which is 46.

[0092] Example 4

[0093] Combination Figures 22 to 28 The construction method for building box culverts using an adjustable trolley formwork system is explained below, with specific steps as follows:

[0094] S21: The concrete pouring of the precast box culvert structure 1 is completed in advance using traditional formwork. The precast box culvert structure 1 includes a base slab cast as a whole and a wall of a certain height. After the concrete meets the design strength requirements, the assembled support frame 100 and formwork system 200 are placed in the first construction section of the box culvert structure 2 to be poured.

[0095] S22: After the support frame 100 is in place, control the extension of the wall support lifts 43 on both sides of the support frame 100 to abut against the wall of the already poured box culvert structure 1, control the extension of the bottom lift 46 to support the bottom plate, and at the same time lift the top formwork assembly to the design height, control the extension of the screw 51 of the corner formwork lift 50 to push the corner formwork panel out and assemble it with the top formwork assembly, the slot 234 of the corner formwork frame 231 is engaged with the protruding edge of the top formwork panel 211, control the extension of the side formwork lift 42 to push the side formwork assembly out and assemble it with the corner formwork panel, the extension end 237 of the corner formwork panel is engaged with the end slot of the side formwork panel 224, that is, the formwork system 200 is completed in the order of first assembling the top formwork assembly, then assembling the corner formwork panel, and finally assembling the side formwork assembly. Check and adjust the width and height of the support frame 100 and the formwork system 200 until the construction requirements are met.

[0096] S23: Tie the reinforcing bars of the walls and top slab of the box culvert structure 2 to be poured, install the external side formwork and end formwork, and reinforce them with tie rods and side formwork components. Pour the concrete of the walls and top slab. After the concrete reaches the design strength, control the wall support elevator 43 to retract away from the wall of the poured box culvert structure 1. Control the side formwork elevator 42, corner formwork elevator 50 and bottom elevator 46 to retract in sequence. Open the formwork system 200 in the order of opening the side formwork components, then the corner formwork panels, and finally the top formwork components.

[0097] S24: Move the formwork moving vehicle 300 to the bottom of the support frame 100 so that the ends of the two telescopic frames 320 correspond to the positions of the casters 47 of the support frame 100. Retract the bottom lifting platform 46 so that the support frame 100 and the formwork system 200 can be supported as a whole by the formwork moving vehicle 300. Control the formwork moving vehicle 300 to move to the next construction section of the box culvert structure 2 to be poured.

[0098] S25: Repeat steps S22 to S24 until the concrete pouring construction of the proposed box culvert structure 2 is completed segment by segment.

[0099] The construction method for building box culverts using an adjustable trolley formwork system involves placing the assembled support frame 100 and formwork system 200 in the first construction section of the box culvert structure 2 to be poured. The wall support lift 43 extends and supports the wall of the already poured box culvert structure 1. The bottom lift 46 extends to raise the top formwork assembly to the designed height. The corner formwork lift 50 extends to push the corner formwork panel to assemble with the top formwork assembly. The side formwork lift 42 extends to push the side formwork assembly out and assemble with the corner formwork panel. The formwork system 200 is closed in the order of closing the top formwork assembly first, then the corner formwork panel, and finally the side formwork assembly. After the construction of the wall and top slab of the current construction section of culvert structure 2 is completed, the wall support elevator 43 is controlled to retract and move away from the wall. The side formwork elevator 42, corner formwork elevator 50, and bottom elevator 46 are then controlled to retract in sequence. The side formwork components are opened, then the corner formwork panels are opened, and finally the top formwork components are opened to realize the formwork construction of the formwork system 200. The bottom elevator 46 retracts, so that the support frame 100 and the formwork system 200 can be supported as a whole on the formwork moving vehicle 300. The formwork moving vehicle 300 is controlled to move to the next construction section of the box culvert structure 2 to be poured. This process is repeated until the concrete pouring construction of the box culvert structure 2 to be poured is completed section by section. This construction method utilizes the overlapping of steel panels at the connection points of the top formwork components, corner formwork panels, and side formwork components to achieve seamless splicing, preventing grout leakage from affecting the quality of concrete pouring. The support frame 100 is detachably connected to the formwork system 200 via multi-angle telescopic adjustable components, enabling automated adjustment of the width and height of the formwork system 200, as well as automated closing and dismantling of each formwork component. Furthermore, the formwork moving vehicle 300 can carry the support frame 100 and the dismantled formwork system 200 and move them as a whole to the next construction section of the box culvert structure 2 to be poured. This method boasts a high degree of automation, high equipment turnover efficiency, and safe and efficient overall movement, improving the level of industrialized construction, enhancing construction efficiency and quality, and ensuring construction safety.

[0100] Step S24 further includes adjusting the telescopic height of the adjusting lift 341 of the mold frame moving carriage 300, pushing the two telescopic frames 320 to move in opposite directions along the X-axis, adjusting the height of the support lift 324 of the bracket so that the support plates 325 of multiple brackets are on the same horizontal plane and maintain a certain distance from the casters 47, keeping the telescopic guide rod in the retracted state, moving the mold frame moving carriage 300 to the bottom of the support frame 100 so that the support plates 325 of multiple brackets correspond to the positions of the casters 47 of the support frame 100, and controlling the bottom lift 46 of the support frame 100 to retract so that the support... The support frame 100 can be fully erected on the brackets of the two telescopic frames 320; the two support rods 314 of the telescopic guide rod extend, so that the guide wheel 315 maintains a certain small distance from the wall of the cast-in-place box culvert structure 1, and the telescopic guide rod is locked. One end of the wire rope 510 is wound around the winch, and the other end passes over the fixed pulley and is connected to the anchor 500. The winch winds up the wire rope 510, shortening the length of the wire rope 510 between the formwork moving vehicle 300 and the anchor 500. The formwork moving vehicle 300 carries the support frame 100 and the formwork system 200 and moves along the Z-axis to the next construction section. The two telescopic frames 320 of the formwork moving vehicle 300 can adjust their relative distance under the push of the support elevator and correspond to the position of the column 11 of the support frame 100. This allows the support frame 100 and the formwork system 200 to be supported by the formwork moving vehicle 300 after demolding and to move as a whole to the next construction section of the box culvert structure 2 to be poured. Due to the addition of a winch and anchor 500, the support frame 100 and the formwork system 200 are automatically moved to the next construction section along the construction route by the traction of the wire rope 510. The movement is efficient and safe. The telescopic guide rods on both sides of the main frame 310 have adjustable extension lengths, which can flexibly adapt to the construction of box culvert concrete structures with different structures and cross-sectional dimensions, and improve the stability of the formwork moving vehicle 300 during the movement.

[0101] The above description is merely a description of preferred embodiments of the present invention and is not intended to limit the scope of the present invention in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the scope of the claims.

Claims

1. An adjustable trolley mold frame system, characterized in that, include: The template system includes a top formwork assembly, side formwork assemblies, and corner formwork panels, each corresponding to the shape and position of the top, side, and corner surfaces of the cavity to be cast. The corner formwork panel has a corner formwork frame with two connecting holes at both ends. A slot is located on the top surface of the corner formwork frame near the first connecting hole. The corner formwork frame is connected to the top formwork panel of the top formwork assembly via a pin through the first connecting hole. One end of the steel panel of the top formwork panel can be snapped into the slot of the corner formwork panel, and the other end of the steel panel extends beyond the corner formwork frame as an extension end. The corner mold lifting machine includes a lead screw, a connecting rod connected to one end of the lead screw, a screw drive device threaded to the other end of the lead screw, and an upper support fixed to the end of the screw drive device. The upper support is connected to the horizontal back rib of the top mold assembly by a pin. The connecting rod at the end of the lead screw is connected to its pin through the connecting hole 2 of the corner mold skeleton. The screw drive device is connected to the control system signal to control the extension and retraction of the lead screw of the corner mold lifting machine, thereby driving the corner mold panel to rotate around the end of the top mold assembly with the connecting hole 1 as the center. The support frame includes a support gantry, adjustable horizontal beams, adjustable cantilever beams, a corner formwork lift, a side formwork lift, a wall support lift, and a bottom lift. The support gantry is a rectangular frame formed by two vertically and horizontally spaced columns and two horizontal beams connected together. Two support gantry are vertically spaced apart, and multiple adjustable horizontal beams are horizontally arranged and bolted between the two support gantry. At least two adjustable cantilever beams are mounted on the top horizontal beam of each support gantry. The other end of each adjustable cantilever beam is detachably connected to the side formwork assembly. The detachable connection is provided. At least two pairs of side formwork lifters and one pair of wall support lifters are symmetrically installed on the two columns of each support gantry. The other end of the side formwork lifter is detachably connected to the side formwork assembly. The other end of the wall support lifter abuts against the wall of the cast-in-place box culvert structure. Multiple corner formwork lifters are symmetrically arranged at both ends of the top formwork assembly along its axis. One end of the corner formwork lifter is hinged to the edge of the top formwork assembly, and the other end is connected to the corner formwork panel pin. A bottom lifter is connected to the bottom of each column of the support gantry. The formwork moving vehicle includes a main frame, telescopic frames, an adjustment device, and rollers. Multiple rollers are installed at the bottom of the main frame. Two telescopic frames are symmetrically arranged and fitted on both sides of the main frame. The adjustment device includes an adjustment lift vertically arranged along the axis of the main frame, and two support guide rods symmetrically arranged on both sides of the adjustment lift. One end of each support guide rod is connected to the top of the adjustment lift, and the other end of each support guide rod is connected to the two telescopic frames respectively. The telescopic movement of the adjustment lift drives the two telescopic frames to move synchronously in opposite directions along the axis, so that the ends of the two telescopic frames can correspond to the positions of the casters of the support frame. The formwork moving vehicle is set at the bottom of the support frame and is used to support and move the support frame and formwork system after demolding to the next construction section. The control system is installed on the support frame and is connected to the corner formwork lift and the bottom lift via signal connection.

2. The adjustable trolley mold frame system according to claim 1, characterized in that: The top mold assembly includes a top mold panel, multiple horizontal back ribs spaced apart at its bottom, and multiple quick-connectors for the back ribs. Each quick-connector consists of a U-shaped bending plate, a threaded rod passing through the bending plate, and multiple nuts. One end of the threaded rod is rigidly connected to a nut, and the other end passes through the connection hole between the bending plate and the top mold panel and is locked in place by the nut. The horizontal back ribs are snapped into hooks on the bending plate, allowing them to be vertically snapped into the bottom of the top mold panel. The side mold assembly includes a side mold panel, horizontal back ribs, a first vertical back rib, a second vertical back rib, and quick-connectors for the back ribs. The multiple horizontal back ribs are connected to one side of the side mold panel via quick-connectors for the back ribs. The two first vertical back ribs are vertically... Two vertical back beams are set at intervals and correspond to the positions of the two columns supporting the gantry. The first vertical back beam is bolted to the second horizontal back beam. The two channel steels of the first vertical back beam have corresponding elongated holes. The end of the screw of the side formwork lifting machine is embedded in the gap between the two channel steels. The pin passes through the elongated hole of the first vertical back beam and the screw of the side formwork lifting machine and is tightened. Two second vertical back beams are set vertically at intervals and correspond to the positions of the two adjustable cantilever beams. The second vertical back beams are bolted to the second horizontal back beam. The two channel steels of the second vertical back beam have corresponding elongated holes. The end of the adjustable cantilever beam is embedded in the gap between the two channel steels. The pin passes through the elongated hole of the second vertical back beam and the end of the adjustable cantilever beam and is tightened.

3. The adjustable trolley mold frame system according to claim 2, characterized in that: Each support gantry also includes an adjusting screw vertically connected to the top of the column. The adjusting screw is bolted to the horizontal back rib of the top formwork assembly. Each support gantry also has a gantry bottom sleeve at the bottom of the column. The gantry bottom sleeve is formed by a vertically set cylinder and a base plate. The base plate is bolted to the bottom lift. The cylinder can be fitted inside the column, and multiple through holes are vertically spaced on the side wall of the cylinder and the bottom of the column. The gantry bottom sleeve is fitted to the bottom of the support gantry and connected by a pin through the through hole, so that the bottom lift can be detachably connected to the bottom of the support frame.

4. The adjustable trolley mold frame system according to claim 1, characterized in that: Each support gantry also includes two pairs of connecting rods and one pair of connecting rods. The two pairs of connecting rods are vertically fixed to the connection points of the columns and the crossbeams. The end of the connecting rod near the box culvert structure to be cast is bolted to the side formwork lifting machine, and the other end of the connecting rod is bolted to the adjustable horizontal beam. The pair of connecting rods are vertically fixed to the outer sides of the bottom of the two columns, and the ends of the connecting rods are bolted to the wall support lifting machine. Each support gantry also has a cantilever beam support frame. A horizontal connecting rod parallel to the crossbeam is provided between the pair of connecting rods at the top. The pair of cantilever beam support frames are horizontally spaced and fixed to the crossbeam and the horizontal connecting rod respectively. The adjustable cantilever beam is bolted to the cantilever beam support frame. Each support gantry also includes a pair of caster connecting rods and a pair of casters. The bottom of the pair of connecting rods at the bottom is vertically connected to a pair of caster connecting rods. The connecting plate fixed to the bottom of each caster connecting rod is bolted to the caster. Each support gantry also includes a secondary crossbeam parallel to the pair of crossbeams. The support frame also includes a working platform erected on top of the two secondary crossbeams.

5. The adjustable trolley mold frame system according to claim 1, characterized in that: The adjustable cantilever beam includes a cantilever beam, a support bracket, and a lower support bracket. The support bracket includes a base, a sleeve connected to the base, and a first bearing connected to the bottom of the sleeve by a pin. One end of the cantilever beam passes through the sleeve and is supported by the first bearing. The lower support bracket includes a U-shaped support frame, an adjustable screw connected to the top of the support frame, a second bearing and a shaft pressure block located at the bottom of the adjustable screw and connected to the pin of the support frame. The other end of the cantilever beam passes through the support frame and is located at the bottom of the second bearing and the shaft pressure block. Both the support bracket and the lower support bracket are bolted to the cantilever beam support frame. The two ends of the cantilever beam are respectively provided with a first pin hole and a second pin hole. The first pin hole of the cantilever beam, which is close to the box culvert structure to be cast, is connected to the second vertical back rib pin of the side formwork assembly. A stop block is installed in the second pin hole at the other end of the cantilever beam. The adjustable screw rotates downward to push the second bearing and the shaft pressure block to move along the Y-axis, so that the cantilever beam can support the side formwork assembly to rotate around the first bearing of the support bracket in the XY plane.

6. The adjustable trolley mold frame system according to claim 1, characterized in that: The adjustable horizontal beam includes a first horizontal beam made of I-beams and a second horizontal beam made of two channel steels spaced apart and opposite to each other. The web of the first horizontal beam is adapted to the gap between the two channel steels of the second horizontal beam, so that the first horizontal beam can be fitted into the gap of the second horizontal beam and slide relative to it. The web of both the first and second horizontal beams is provided with multiple bolt holes spaced apart. Positioning bolts pass through the bolt holes of the first and second horizontal beams and are locked in place. The other end of both the first and second horizontal beams is vertically connected to a side plate with bolt holes. The side plates of the first and second horizontal beams are respectively bolted to the connecting rods of the two supporting gantry frames.

7. The adjustable trolley mold frame system according to claim 1, characterized in that: The formwork moving vehicle also includes hollow crossbeams, an adjusting lift, and support guide rods. The main frame is a frame structure composed of at least two horizontal bars and two vertical bars arranged in a crisscross pattern. The two hollow crossbeams are parallel and spaced apart, and the hollow crossbeams vertically penetrate the two vertical bars of the main frame. Two telescopic frames are symmetrically arranged on both sides of the main frame. The telescopic frame includes two parallel and spaced sliding rods, a connecting rod connecting the two sliding rods, an ear plate located in the middle of the connecting rod, and a bracket connecting the sliding rod and the connecting rod. The bracket includes a support lift fixed to the end of the sliding rod and a lead screw connected to the top of the support lift. The support plate; the sliding rods of the two telescopic frames are respectively embedded at both ends of the hollow crossbeam. The adjusting lift is fixed in the middle of the main frame. Two support guide rods are symmetrically arranged along the axis of the main frame. One end of each support guide rod is connected to the top of the adjusting lift, and the other end of each support guide rod is connected to the ear plate pin of the connecting rod of the telescopic frames on both sides. The screw of the adjusting lift extends and retracts along the Y-axis, and drives the two telescopic frames to move synchronously in opposite directions along the X-axis through the support guide rods, thereby adjusting the distance between the brackets on the two telescopic frames along the X-axis, so that the brackets on the two telescopic frames can correspond to the position of the support frame column.

8. The adjustable trolley mold frame system according to claim 7, characterized in that: The formwork moving vehicle also includes telescopic guide rods. Two telescopic guide rods are vertically connected to both sides of two longitudinal rods. Each telescopic guide rod includes two parallel hollow crossbars fixed to the ends of the longitudinal rods, and two support rods embedded in the two hollow crossbars. The two support rods are installed in opposite directions. The side walls of the hollow crossbars and support rods are provided with multiple bolt holes at equal intervals. The ends of the two support rods are connected to guide wheels. After the two support rods extend in opposite directions and the guide wheels abut against the cast-in-place box culvert structure wall, positioning bolts pass through the bolt holes on the hollow crossbars and support rods and lock them in place, so that the formwork moving vehicle can maintain an equal distance from the wall during the sliding process.

9. The adjustable trolley mold frame system according to claim 7, characterized in that: The formwork moving vehicle also includes a main rod and a support rod arranged parallel to the hollow crossbeam. The main rod is located in the middle of the main frame, and the support rod is located between the hollow crossbeam and the main rod. The adjusting elevator is vertically fixed to the main rod, the winch is fixed to the support rod, and the fixed pulley is fixed to the hollow crossbeam. The adjusting elevator, winch, and fixed pulley are all arranged along the axis of the main frame. One end of the wire rope is wound around the winch, and the other end passes over the fixed pulley and is connected to the anchor located on the axis of the cast-in-place box culvert structure.

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