Steel form traveler support system for airport drainage box culvert

Abstract

This invention discloses a steel formwork trolley support system for airport drainage box culverts, used to support the top and side forms. The side forms have an angled template structure near the top form. The system also includes: several sets of gantry frames connected by transverse connecting frames; side form support assemblies, with two sets of side form support assemblies installed opposite each other on the side ends of the gantry frames, used to support the side forms; a top form support assembly, adjustablely installed at the top of the gantry frames, used to support the top form; and traveling wheels installed at the bottom of the gantry frames, which travel on tracks. The steel formwork trolley support system for airport drainage box culverts provided by this invention uses a split-type, modular trolley. By adjusting the dimensions of the side and top form support assemblies, as well as the steel formwork dimensions of the top and side forms, it can handle the pouring of curved sections and variable cross-sections. On-site, the dimensions of each trolley section can be adjusted more flexibly to accommodate the pouring of box culverts of various sizes.

Description

Technical Field

[0001] This invention relates to the technical field of steel formwork trolley support systems for box culverts, and more specifically, to a steel formwork trolley support system for airport drainage box culverts. Background Technology

[0002] Traditionally, the large-volume formwork support for box culverts is installed and dismantled manually using scaffolding. Full-span scaffolding construction, due to the small area of ​​individual formwork panels and numerous joints, easily leads to problems such as grout leakage, formwork deformation, and misalignment during concrete pouring, resulting in quality issues like honeycomb and pitted concrete surfaces. Furthermore, manual assembly and dismantling pose safety hazards, and the process is cumbersome, slow, inefficient, and results in a messy work site.

[0003] Chinese patent CN208250935 U discloses a large-volume concrete support formwork for easy demolding. The formwork is divided into inner and outer molds. The inner mold consists of an inner template, an inner template movement mechanism, and an inner template fixing mechanism. The inner template comprises two inner side molds, one inner top mold, and two V-shaped molds connected between the inner side molds and the inner top mold. The inner template fixing mechanism consists of a support truss, an upper crossbeam, horizontal threaded rods, traveling legs, and a traveling device assembly. The outer mold mainly consists of two outer side molds and an outer template fixing mechanism. The outer template fixing mechanism consists of a top tie beam, a vertical main beam, a longitudinal main beam, horizontal threaded rods, traveling legs, and a traveling device. This steel formwork trolley is hoisted into the box culvert as a whole, making dimensional adjustments inconvenient. Summary of the Invention

[0004] To achieve the above objectives, this invention discloses a steel formwork trolley support system for airport drainage culverts, used to support the top formwork and side formwork. The side formwork has an angled template structure near the top formwork end, and further includes:

[0005] Several groups of gantry frames connected by transverse connecting frames;

[0006] Side mold support assembly, two sets of the side mold support assembly are installed opposite to each other on the side end of the gantry, the side mold support assembly is used to support the side mold;

[0007] A top mold support assembly, which is adjustablely mounted on the top of the gantry and is used to support the top mold;

[0008] The traveling wheels are installed at the bottom of the gantry and travel on the track.

[0009] Preferably, the top mold is made of steel with a steel plate thickness of 6mm. A 50mm*10mm flat steel rib is set every 100mm longitudinally on the back of the top mold, and three No. 16 I-beams are set laterally for support.

[0010] Preferably, the side mold is made of steel with a steel plate thickness of 6mm. A 50mm*6mm flat steel rib is set every 100mm longitudinally on the back of the side mold, and three No. 6.5 channel steels are set laterally for support.

[0011] Preferably, every three sets of masts form a trolley, and adjacent trolleys are connected by connecting screws.

[0012] Preferably, the top mold support component is a jack.

[0013] Preferably, the side mold support assembly includes:

[0014] Side support components, three of which are adjustablely installed from top to bottom between the gantry and the side formwork;

[0015] An inclined support assembly is provided, which is supported and connected between the gantry and the angled template.

[0016] Preferably, the side support assembly includes:

[0017] Rotate the screw sleeve one, on which a handle one is installed;

[0018] Screw 1 and Screw 2 are respectively installed at both ends of rotating screw sleeve 1. The end of screw 1 away from rotating screw sleeve is hinged to the side mold, and the end of screw 2 away from rotating screw sleeve is hinged to the gantry.

[0019] Preferably, the inclined support assembly includes:

[0020] Rotate the second screw sleeve, on which a second lever is installed;

[0021] Screw 3 and screw 4 are respectively installed at both ends of rotating screw sleeve 2. The end of screw 3 away from rotating screw sleeve 2 is hinged to the angled template, and the end of screw 4 away from rotating screw sleeve 2 is hinged to the gantry.

[0022] A vertical support assembly is installed on a rotating screw sleeve and is always connected to the top mold in a state perpendicular to the horizontal plane.

[0023] Preferably, the vertical support assembly includes:

[0024] An inclined mounting platform is mounted on a rotating screw sleeve.

[0025] A bottom fixing base, which can be detachably installed on an inclined mounting platform;

[0026] The liquid storage chamber is located inside the bottom fixing base and is open-ended, communicating with the end of the bottom fixing base away from the inclined mounting platform. The liquid storage chamber stores oil containing magnetic powder.

[0027] A rotating seat, the top of which is hemispherical and the bottom of which is conical and has a weight attached, the top of which is rotatably mounted in the liquid storage chamber, the top of which is adapted to the top of which is spherical, and the bottom of which is wound with an energized coil.

[0028] A support rod, one end of which is mounted on the top of the rotating seat, and the other end of which is detachably mounted on the top mold.

[0029] Preferably, the other end of the support rod has an upper slot, an L-shaped connecting seat is installed at the bottom of the top mold, and the L-shaped connecting seat away from the top mold end is locked in the upper slot. The locking block is installed at the other end of the support rod by mounting bolts and is locked in the inner side of the flange of the L-shaped connecting seat away from the top mold end. The adjusting block is installed on the support rod by a pin and is located below the L-shaped connecting seat. The vertical screw passes through the adjusting block, the support nut is installed at the bottom end of the vertical screw, the support block is installed at the top end of the vertical screw and is supported and connected to the L-shaped connecting seat, the rubber ring seat is sleeved on the vertical screw and is supported and connected between the adjusting block and the outer mounting ring, the rigid sleeve is sleeved outside the rubber ring seat and the outer mounting ring and is connected to the adjusting block, and the return spring is sleeved on the vertical screw and abuts against the rigid sleeve and the support block. Attached Figure Description

[0030] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the trolley support system structure of the present invention. Figure 1 ;

[0032] Figure 2 This is a schematic diagram of the trolley support system structure of the present invention. Figure 2 ;

[0033] Figure 3 This is a schematic diagram of the side support component structure of the present invention;

[0034] Figure 4 This is a schematic diagram of the side mold support assembly structure of the present invention;

[0035] Figure 5 This is a schematic diagram of the inclined support component structure of the present invention;

[0036] Figure 6 This is a schematic diagram of the vertical support component structure of the present invention;

[0037] Figure 7 This is a schematic diagram of the other end of the support rod of the present invention;

[0038] Figure 8 This is a schematic diagram of the rigid sleeve internal structure of the present invention.

[0039] In the diagram: 10. Supporting top formwork; 11. Side formwork; 12. Gantry; 13. Side formwork support assembly; 14. Top formwork support assembly; 15. Traveling wheels; 16. Horizontal connecting frame; 17. Angled template; 18. Connecting screw rod; 21. Side support assembly; 22. Angled support assembly; 23. Rotating screw sleeve one; 24. Handle one; 25. Screw one; 26. Screw two; 27. Rotating screw sleeve two; 28. Handle two; 29. ​​Screw three; 20. Screw four; 30. Vertical support 31. Support assembly; 32. Slanted mounting platform; 33. Bottom fixing seat; 34. Liquid storage chamber; 35. Rotating seat; 36. Support rod; 37. Energizing coil; 38. Dropper; 39. Upper slot; 40. L-shaped connecting seat; 41. Locking block; 42. Mounting bolt; 43. Adjusting block; 44. Pin; 45. Vertical screw; 46. Support nut; 47. Support block; 48. Rubber ring seat; 49. Outer mounting ring; 50. Rigid sleeve; 51. Return spring; 52. Sealing ring. Detailed Implementation

[0040] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] Example

[0042] The present invention will now be further described with reference to the accompanying drawings.

[0043] like Figures 1 to 8 As shown in the figure, this embodiment provides a steel formwork trolley support system for an airport drainage culvert, used to support the top formwork 10 and the side formwork 11. The side formwork 11 has a beveled template 17 structure near the top formwork 10, and also includes:

[0044] Several groups of gantry 12 connected by transverse connecting frames 16;

[0045] Side mold support assembly 13, two sets of side mold support assemblies 13 are installed opposite to each other on the side end of the gantry 12, the side mold support assembly 13 is used to support the side mold 11;

[0046] A top mold support assembly 14 is adjustablely installed on the top of the gantry 12 and is used to support the top mold 10.

[0047] The traveling wheel 15 is installed at the bottom of the gantry 12 and travels on the track.

[0048] The top mold 10 is made of steel with a steel plate thickness of 6mm. A 50mm*10mm flat steel rib is set every 100mm along the back of the top mold 10, and three No. 16 I-beams are set in the transverse direction for support.

[0049] The side mold 11 is made of steel with a steel plate thickness of 6mm. The back of the side mold 11 is provided with a 50mm*6mm flat steel rib every 100mm longitudinally, and three No. 6.5 channel steels are provided for support laterally.

[0050] Each set of three gantry frames 12 forms a trolley, and adjacent trolleys are connected by connecting screws 18.

[0051] The working principle and beneficial effects of the above technical solution are as follows:

[0052] This invention discloses a steel formwork trolley support system for an airport drainage culvert. A gantry 12 is assembled with wheels 15. Each gantry 12 has three wheels 15 mounted at its bottom. After the gantry 12 are connected by a transverse connecting frame 16 to form a trolley, a top formwork support assembly 14 is installed on the top of the gantry 12. The top formwork 10 is assembled and then installed on the top formwork support assembly 14. Next, a side formwork support assembly 13 is installed on the side of the gantry 12. After the side formwork 11 is assembled, it is connected to the side of the gantry 12 via the side formwork support assembly 13. The top of the side formwork 11 is connected to the top formwork 10 via an angled template 17. Then, according to the inner diameter of the culvert, the top formwork support assembly 14 is raised and lowered to adjust the height of the top formwork 10, and the side formwork support assembly 13 is extended and retracted to adjust the width of the side formwork 11 on both sides.

[0053] The trolleys are assembled off-site. A 12t truck-mounted crane transports each trolley to the site, where a 30-ton truck crane lifts it into the pre-poured concrete foundation in the trench. After the bottom slab of the box culvert is poured, a track is laid at position 15 of the traveling wheel. Once the track is laid, a forklift is used to send each trolley into the culvert. After the trolley is on the track, it is moved by manual pushing or by a winch.

[0054] The trolley enters the box culvert, the top formwork support assembly 14 is raised and lowered, the top formwork 10 is adjusted to a position of 3 meters, the top formwork 10 is locked, the side formwork support assemblies 13 on both sides are adjusted, and after the distance between the side formworks 11 on both sides reaches 2.6 meters, the connecting screw rod 18 is reinforced, and the adjacent trolleys are tightly connected by the connecting screw rod 18.

[0055] After the pouring is completed and the curing period is over, the trolley inside the box culvert can be removed. Before removal, the side formwork support assembly 13 is removed so that the side formwork 11 is detached from the concrete surface and the angled formwork 17 is detached from the concrete surface. After the angled formwork 17 is detached from the side formwork 11, the top formwork support assembly 14 is slowly lowered. After the top formwork 10 is detached from the concrete surface and there is a certain distance, the connection with the adjacent trolley can be disconnected, and the trolley can be pushed out of the box culvert and enter the next section of the box culvert.

[0056] The present invention provides a steel formwork trolley support system for airport drainage box culverts. The trolley used is a split-type assembly trolley. By adjusting the steel formwork dimensions of the side formwork support component 13, the top formwork support component 14, the top formwork 10, and the side formwork 11, it can cope with the pouring of curved sections and variable cross sections. On-site, the dimensions of each trolley section can be adjusted more flexibly to cope with the pouring of box culverts of various sizes.

[0057] In one embodiment, the top mold support assembly 14 is a jack.

[0058] In one example, the side mold support assembly 13 includes:

[0059] Side support assembly 21, three of the side support assemblies 21 are adjustablely installed from top to bottom between the gantry 12 and the side mold 11;

[0060] Inclined support assembly 22 is connected between the gantry 12 and the angled template 17.

[0061] The working principle of the above technical solution is as follows:

[0062] Three side support components 21 are adjustablely installed between the gantry 12 and the side mold 11 from top to bottom to support the side mold 11. The width between the two side molds 11 can be adjusted by adjusting the length of the side support components 21. When the side mold 11 is adjusted to a suitable position and the angled template 17 is connected to the top mold 10, the angled support component 22 is used to support the angled template 17.

[0063] In one embodiment, the side support assembly 21 includes:

[0064] Rotate the screw sleeve 23, on which a handle 24 is installed;

[0065] Screw 1 25 and screw 26 are respectively installed at both ends of rotating screw sleeve 1 23. The end of screw 1 25 away from rotating screw sleeve 1 23 is hinged to the side mold 11, and the end of screw 26 away from rotating screw sleeve 1 23 is hinged to the gantry 12.

[0066] The working principle and beneficial effects of the above technical solution are as follows:

[0067] Screw 1 25 and screw 2 26 are respectively secured on the side mold 11 and the gantry 12. By rotating the rotating sleeve 23 by the handle 24, screw 1 25 and screw 2 26 move simultaneously toward or away from each other. The thread direction of screw 1 25 is opposite to that of screw 2 26. When it is necessary to extend the side support assembly 21, rotating the rotating sleeve 23 by the handle 24 moves screw 1 25 and screw 2 26 away from each other, thereby extending the side support assembly 21 and widening the width between the two side molds 11. When it is necessary to retract the side support assembly 21, rotating the rotating sleeve 23 by the handle 24 moves screw 1 25 and screw 2 26 closer to each other, thereby retracting the side support assembly 21 and narrowing the width between the two side molds 11.

[0068] In one embodiment, the inclined support assembly 22 includes:

[0069] Rotate the screw sleeve 27, on which a rotary handle 28 is installed;

[0070] Screw 3 29 and screw 4 20 are respectively installed at both ends of rotating screw sleeve 2 27. The end of screw 3 29 away from rotating screw sleeve 2 27 is hinged to the angled template 17, and the end of screw 4 20 away from rotating screw sleeve 2 27 is hinged to the gantry 12.

[0071] Vertical support component 30 is mounted on rotating screw sleeve 27 and is always connected to the top mold 10 in a state perpendicular to the horizontal plane.

[0072] The working principle and beneficial effects of the above technical solution are as follows:

[0073] After the side mold 11 is adjusted to the appropriate position and the angled template 17 is connected to the top mold 10, screws 3 29 and 4 20 are respectively engaged on the angled template 17 and the gantry 12. By rotating the screw sleeve 27 through the handle 28, screws 3 29 and 4 20 move simultaneously towards or away from each other. The thread direction of screws 3 29 and 4 20 is opposite. When it is necessary to extend the side support assembly 21, rotating the screw sleeve 27 through the handle 28 moves screws 3 29 and 4 20 simultaneously away from each other, thereby extending the angled support assembly 22 and supporting the angled template 17. When it is necessary to retract the angled support assembly 22, rotating the handle 28 in the opposite direction... Rotating the second screw sleeve 27 causes the third screw 29 and the fourth screw 20 to move towards each other simultaneously, thereby retracting the inclined support assembly 22 and disassembling it. Since the inclined support assembly 22 is installed after the side mold 11 is adjusted to a suitable position and the angled template 17 is connected to the top mold 10, the function of the inclined support assembly 22 is to support the angled template 17. Therefore, the second screw sleeve 27 only needs to be rotated at a small angle, about 6-15°. After the second screw sleeve 27 is rotated at a small angle, the vertical support assembly 30 remains perpendicular to the horizontal plane and connected to the top mold 10, thus facilitating the connection between the vertical support assembly 30 and the top mold 10.

[0074] In one embodiment, the vertical support component 30 includes:

[0075] An inclined mounting platform 31 is mounted on a rotating screw sleeve 27.

[0076] A bottom fixing base 32 is detachably mounted on an inclined mounting platform 31.

[0077] The liquid storage chamber 33 is located inside the bottom fixing base 32 and is open-ended, communicating with the end of the bottom fixing base 32 away from the inclined mounting platform 31. The liquid storage chamber 33 stores oil containing magnetic powder.

[0078] The rotating seat 34 is a hollow structure. The top of the rotating seat 34 is hemispherical and the bottom is conical. A weight 37 is installed on the bottom of the rotating seat 34. The top of the rotating seat 34 is rotatably installed in the liquid storage chamber 33 and is fitted with a sealing ring 51. The top of the bottom fixing seat 32 is adapted to the top of the rotating seat 34, which is spherical. An energized coil 36 is wound around the bottom of the bottom fixing seat 32.

[0079] Support rod 35, one end of which is installed on the top of rotating seat 34, and the other end of which is detachably installed on top mold 10.

[0080] The working principle and beneficial effects of the above technical solution are as follows:

[0081] The rotating seat 34 is rotatably located in the liquid storage chamber 33 and floats on the surface of the oil. The top of the rotating seat 34 is rotatably connected to the top of the fixed seat 32. The liquid storage chamber 33 stores oil with magnetic powder. The surface of the oil in the liquid storage chamber 33 is kept parallel to the horizontal plane. When the rotating screw sleeve 27 rotates at a small angle, it drives the inclined mounting platform 31 and the bottom fixed seat 32 connected to the inclined mounting platform 31 to tilt. The rotating seat 34 always remains perpendicular to the surface of the oil, so that the rotating seat 34 always remains perpendicular to the horizontal plane. This makes the support rod 35 installed on the rotating seat 34 always remain perpendicular to the horizontal plane. In this way, the support rod 35 always remains perpendicular to the top mold 10. The upward pull of the support rod 35 combines the downward pull caused by the weight of the side mold 11, thus reinforcing the side support assembly 21.

[0082] When the energized coil 36 is energized, it generates a magnetic field. The magnetic powder in the oil is distributed regularly along the magnetic field lines, which makes the oil viscous. This stabilizes the rotating seat 34 floating on the surface of the oil and improves the stability of the support rod 35 in maintaining a vertical state.

[0083] In one embodiment, the other end of the support rod 35 has an upper slot 38, an L-shaped connecting seat 39 is installed at the bottom of the top mold 10, and the end of the L-shaped connecting seat 39 away from the top mold 10 is locked in the upper slot 38. A locking block 40 is installed on the other end of the support rod 35 by mounting bolts 41 and is locked in the inner side of the flange of the L-shaped connecting seat 39 away from the top mold 10. An adjusting block 42 is installed on the support rod 35 by a pin 43, and the adjusting block 42 is located below the L-shaped connecting seat 39. A vertical screw 44... A support nut 45 is installed on the bottom of the vertical screw 44, a support block 46 is installed on the top of the vertical screw 44 and is supported and connected to the L-shaped connecting seat 39, a rubber ring seat 47 is sleeved on the vertical screw 44 and is supported and connected between the adjusting block 42 and the outer mounting ring 48, a rigid sleeve 49 is sleeved on the rubber ring seat 47 and the outer mounting ring 48 and is connected to the adjusting block 42, and a return spring 50 is sleeved on the vertical screw 44 and abuts against the rigid sleeve 49 and the support block 46.

[0084] The working principle and beneficial effects of the above technical solution are as follows:

[0085] As the rotating sleeve 27 rotates at a small angle, it causes the inclined mounting platform 31 and the bottom fixing seat 32 connected to the inclined mounting platform 31 to tilt. The rotating seat 34 remains perpendicular to the oil surface, thus keeping the rotating seat 34 perpendicular to the horizontal plane. This also keeps the support rod 35 mounted on the rotating seat 34 perpendicular to the horizontal plane. After the upper slot 38 at the other end of the support rod 35 is engaged with the inner side of the flange of the L-shaped connecting seat 39 away from the top mold 10, a locking block 40 is added using mounting bolts 41, thus fixing the L-shaped connecting seat 39 away from the top mold 10 in the upper slot 38. Then, after adjusting the adjusting block 42 to a suitable position, the adjusting block 42 is fixed to the support using pins 43. On rod 35, a support block 46 is rotatably mounted on vertical screw 44, so that the support block 46 abuts against L-shaped connecting seat 39. The bottom end of vertical screw 44 is locked by support nut 45. As support block 46 is continuously lifted upward and exerts force on L-shaped connecting seat 39, reaction force causes vertical screw 44 to fall up and down on adjusting block 42. Vertical screw 44 drives outer mounting ring 48 to fall inside rigid sleeve 49 and squeeze rubber ring seat 47. After rubber ring seat 47 is deformed by pressure, its thickness becomes thinner and it expands outward. It is constrained by rigid sleeve 49, which restricts the outward expansion of rubber ring seat 47, thereby generating reaction force to support L-shaped connecting seat 39, thereby improving the support strength between support rod 35 and top mold 10.

[0086] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A steel formwork trolley support system for an airport drainage culvert, used to support a top formwork (10) and a side formwork (11), wherein the side formwork (11) near the top formwork (10) has an angled template (17) structure, characterized in that, Also includes: Several groups of gantry (12) connected by transverse connecting frame (16); Side mold support assembly (13): Two sets of side mold support assemblies (13) are installed opposite each other on the side end of the gantry (12). The side mold support assembly (13) is used to support the side mold (11). The top mold support assembly (14) is adjustable and installed on the top of the gantry (12). The top mold support assembly (14) is used to support the top mold (10). The traveling wheel (15) is installed at the bottom of the gantry (12) and travels on the track; The side formwork support assembly (13) includes: Side support assembly (21), three side support assemblies (21) are adjustablely installed from top to bottom between the gantry (12) and the side mold (11); The diagonal support assembly (22) is connected between the gantry (12) and the angled template (17); The inclined support assembly (22) includes: a rotating screw sleeve two (27), on which a rotating handle two (28) is installed; a screw three (29) and a screw four (20) are respectively installed at both ends of the rotating screw sleeve two (27); the end of the screw three (29) away from the rotating screw sleeve two (27) is hinged to the inclined template (17); the end of the screw four (20) away from the rotating screw sleeve two (27) is hinged to the gantry (12); and the vertical support assembly (30) is installed on the rotating screw sleeve two (27) and is always connected to the top mold (10) in a state perpendicular to the horizontal plane. The vertical support assembly (30) includes: an inclined mounting platform (31) mounted on the rotating screw sleeve (27), a bottom fixing seat (32) detachably mounted on the inclined mounting platform (31), a liquid storage chamber (33) located in the bottom fixing seat (32) and openly connected to the end of the bottom fixing seat (32) away from the inclined mounting platform (31), the liquid storage chamber (33) stores oil with magnetic powder, the top of the rotating seat (34) is hemispherical, the bottom of the rotating seat (34) is conical and has a weight (37) mounted thereon, the top of the rotating seat (34) is rotatably mounted in the liquid storage chamber (33), the top of the bottom fixing seat (32) is adapted to the top of the rotating seat (34) and is spherical, the bottom of the bottom fixing seat (32) is wound with an energized coil (36), one end of the support rod (35) is mounted on the top of the rotating seat (34), and the other end of the support rod (35) is detachably mounted on the top mold (10).

2. The steel formwork trolley support system for an airport drainage culvert according to claim 1, characterized in that, The top mold (10) is made of steel with a steel plate thickness of 6mm. A 50mm*10mm flat steel rib is set every 100mm along the back of the top mold (10), and three No. 16 I-beams are set in the transverse direction for support.

3. The steel formwork trolley support system for an airport drainage culvert according to claim 1, characterized in that, The side mold (11) is made of steel with a steel plate thickness of 6mm. A 50mm*6mm flat steel rib is set every 100mm in the longitudinal direction on the back of the side mold (11), and three No. 6.5 channel steels are set in the transverse direction for support.

4. The steel formwork trolley support system for an airport drainage culvert according to claim 1, characterized in that, Every three sets of gantry frames (12) form a trolley, and adjacent trolleys are connected by connecting screws (18).

5. The steel formwork trolley support system for an airport drainage culvert according to claim 1, characterized in that, The top formwork support component (14) is a jack.

6. The steel formwork trolley support system for an airport drainage culvert according to claim 1, characterized in that, The side support assembly (21) includes: Rotate the screw sleeve (23), and a handle (24) is installed on the screw sleeve (23); Screw 1 (25) and screw 2 (26) are respectively installed at both ends of rotating screw sleeve 1 (23). The end of screw 1 (25) away from rotating screw sleeve 1 (23) is hinged to the side mold (11), and the end of screw 2 (26) away from rotating screw sleeve 1 (23) is hinged to the gantry (12).

7. The steel formwork trolley support system for an airport drainage culvert according to claim 1, characterized in that, The other end of the support rod (35) is provided with an upper slot (38). An L-shaped connecting seat (39) is installed at the bottom of the top mold (10). The end of the L-shaped connecting seat (39) away from the top mold (10) is locked in the upper slot (38). The locking block (40) is installed on the other end of the support rod (35) by mounting bolts (41) and is locked on the inner side of the flange of the end of the L-shaped connecting seat (39) away from the top mold (10). The adjusting block (42) is installed on the support rod (35) by pins (43). The adjusting block (42) is located below the L-shaped connecting seat (39). The vertical screw (44) passes through the adjusting block (45). 2) On the top, the support nut (45) is installed at the bottom of the vertical screw (44), the support block (46) is installed at the top of the vertical screw (44) and is supported and connected to the L-shaped connecting seat (39), the rubber ring seat (47) is sleeved on the vertical screw (44) and is supported and connected between the adjusting block (42) and the outer mounting ring (48), the rigid sleeve (49) is sleeved on the rubber ring seat (47) and the outer mounting ring (48) and is connected to the adjusting block (42), and the return spring (50) is sleeved on the vertical screw (44) and abuts against the rigid sleeve (49) and the support block (46).

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