A large overhanging eaves formwork structure for roof

Abstract

The present application relates to a formwork structure for a large overhanging eaves on a roof, and relates to the technical field of large overhanging eaves on a roof, including a formwork, a supporting mechanism, and a pushing mechanism on the formwork, the supporting mechanism including: a supporting frame, which is arranged on the roof; a pull rope, which is arranged on the formwork and connected to the supporting frame and used to support the formwork; a winding assembly, which is arranged on the supporting frame and used to wind up or release the pull rope. The present application fixes the formwork to the cantilever beam through a fixing assembly, and then connects the pull rope to the formwork, and then the winding assembly starts to tighten the formwork to support and position the formwork, and then concrete is poured on the formwork, so that it will not cause adverse effects on the construction of the lower structure, thereby improving construction efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of large roof eaves, and in particular to a formwork structure for large roof eaves. Background Art

[0002] The roofs of many construction projects are cantilevered cast-in-place roofs. The large eaves refer to the part of the roof that protrudes from the exterior wall. It is mainly for the convenience of roof drainage and also plays a protective role for the exterior wall.

[0003] The roof generally includes a cantilever beam and a plurality of support rods for supporting the cantilever beam. The floor structure of the lower layer is connected to the support rods. When constructing the large cantilevered roof on the roof, a cast formwork needs to be installed on the roof. The cast formwork needs to be provided with a structure for fixing. In the existing technology, an I-beam is generally fixedly installed in the lower floor structure. The I-beam is cantilevered out of the floor slab, and a scaffold is set on the I-beam to support the formwork. However, the scaffold can only be removed after the strength of the concrete structure is reached. The lower structure will also be decorated or ground constructed. The existence of the scaffold will have an adverse effect on the construction in the lower layer, thereby reducing the construction efficiency. Another method is to set a tripod to support the formwork, but the distance between adjacent support rods is large, so the tripod set on the support rod has poor stability and cannot meet the supporting effect of the formwork, resulting in poor stability during construction. Summary of the invention

[0004] In order to improve construction efficiency and stability, the present application provides a large overhanging eaves formwork structure for a roof.

[0005] The present application provides a roof large overhanging eaves formwork structure, which adopts the following technical solutions:

[0006] A large overhanging eaves formwork structure for a roof, comprising a formwork arranged on a cantilever beam through a fixing assembly, a supporting mechanism arranged on the roof and used to support the formwork, the formwork is also provided with a pushing mechanism for driving the formwork to separate from concrete, and the supporting mechanism comprises:

[0007] A support frame, wherein the support frame is arranged on the roof;

[0008] A pull rope, which is arranged on the template and connected to the support frame and is used to support the template;

[0009] A winding assembly is arranged on the support frame and is used for winding or releasing the draw cord.

[0010] By adopting the above technical solution, the formwork is fixed to the cantilever beam through the fixing component, and then the pull rope is connected to the formwork, and then the winding pull rope is activated by the winding component, so that the pull rope tightens the formwork to support and position the formwork, and then concrete is poured on the formwork, so it will not cause adverse effects on the construction of the lower structure, thereby improving the construction efficiency; and when the strength of the concrete structure is reached, the fixing component is unlocked to separate the formwork and concrete, and then the pushing mechanism pushes the concrete to separate the concrete and the formwork, thereby saving the time spent on removing the formwork, thereby further improving the construction efficiency.

[0011] At the same time, the pull rope supports and positions the formwork, thereby improving the stability when the formwork is used for construction, thereby improving both the construction efficiency and the stability of the construction.

[0012] Optionally, a mounting hole is provided on the template, and the fixing assembly includes:

[0013] A fixing screw rod, the fixing screw rod passing through the mounting hole and the cantilever beam and having a diameter smaller than the diameter of the mounting hole;

[0014] A fixed boss, which is arranged on the fixed screw and is in the shape of an inclined truncated cone and is pressed against the mounting hole for positioning;

[0015] A fixing nut is threadedly connected to the fixing screw rod and pressed against the cantilever beam for positioning.

[0016] By adopting the above technical solution, the fixing screw is passed through the mounting hole and the cantilever beam, and then the fixing nut is threadedly connected to the fixing screw, so that the fixing nut is pressed against the cantilever beam, and the fixing boss is pressed against the mounting hole for positioning, so that an escape space is formed between the fixing screw and the side wall of the mounting hole, and when the formwork needs to be removed, the fixing nut is twisted away from the cantilever beam, the fixing screw is knocked to disengage the fixing boss from the mounting hole, and then the pushing mechanism is started to push the concrete and the formwork to separate, so there is no need to remove the fixing nut and the fixing screw, and the pushing mechanism can be started to separate the formwork and the concrete, which improves the convenience when disassembling and assembling the formwork, thereby improving the construction efficiency;

[0017] At the same time, after the formwork and concrete are separated, the fixing screw can continue to position the formwork, so that the formwork will not fall directly and cause danger. Then, the formwork can be disassembled by removing the fixing nut and the fixing screw, thereby improving the construction efficiency while also improving the safety during construction.

[0018] Optionally, the fixing boss is threadedly connected to the fixing screw through a threaded hole and pressed against the head of the fixing screw for positioning; the fixing boss is provided with a first positioning ring pressed against the side wall of the template and a second positioning ring clamped and installed on the mounting hole.

[0019] By adopting the above technical scheme, the first positioning ring disperses the force exerted on the fixing boss, and the second positioning ring is clamped and installed on the mounting hole to support the force, thereby reducing the probability of damage to the fixing boss and the fixing screw, thereby improving the fixing effect of the template and improving the stability of the template when in use; the fixing boss, the first positioning ring and the second positioning ring can be adapted according to different mounting hole sizes, and the fixing boss, the first positioning ring and the second positioning ring can be replaced after damage, thereby improving the adaptability of the fixing boss, the first positioning ring and the second positioning ring and the supporting effect of the fixed boss.

[0020] Optionally, the pushing mechanism includes:

[0021] A push plate, the push plate being slidably arranged on the template;

[0022] A plurality of push rods, which are arranged on the push plate and are slidably arranged on the template and are used to push the template to separate from the concrete;

[0023] A pushing component is arranged on the template and is used for driving the push plate to move.

[0024] By adopting the above technical solution, the pushing component is started to drive the push plate to move, and the movement of the push plate drives multiple push rods to push the concrete at the same time. The concrete generates a reaction force to separate the formwork from the concrete, thereby achieving the separation of the formwork from the concrete. In addition, by pushing the concrete at the same time by multiple push rods, the probability of damage to the concrete is reduced, thereby improving the convenience of separating the formwork and concrete, thereby improving construction efficiency and also improving construction quality.

[0025] Optionally, the pushing component includes:

[0026] A push nut, wherein the push nut is arranged on the push plate;

[0027] A pushing screw, which is rotatably disposed on the template and threadably connected to the pushing nut;

[0028] The pushing plate is arranged on the bottom end of the pushing screw rod. When the pushing rod is flush with the upper surface of the template, the pushing nut is pressed against the pushing plate for positioning, and a movable space for the pushing plate to move is formed between the pushing plate and the template.

[0029] By adopting the above technical scheme, the push screw rotates to drive the push plate to move up so that the concrete is separated from the formwork, and at the same time the push plate is pressed against the formwork for positioning. Therefore, the size of the movable space between the push plate and the formwork can be designed according to needs, thereby reducing the damage to the concrete caused by the push rod caused by twisting the push screw so that the push rod moves too far. Therefore, while satisfying the requirement of separating the concrete and the formwork, the construction quality is also improved; at the same time, when the push rod and the upper surface of the formwork are flush, the push nut is pressed against the push plate for positioning, so that the position of the push rod is fixed after it moves back, so that the upper surface of the formwork and the top of the push rod form a horizontal plane, reducing the probability of concrete entering the gap between the push rod and the formwork and connecting the push rod and the formwork together, thereby improving the convenience of removing the formwork, thereby improving construction efficiency.

[0030] Optionally, a push plate for pushing concrete is provided at the top end of the push rod, the push plate has a diameter greater than the diameter of the push rod and is slidably disposed on the push plate, and an anti-wear layer is also provided on the outer side wall of the push plate.

[0031] By adopting the above technical scheme, the push plate increases the contact area between the push rod and the concrete, thereby reducing the probability of damage to the concrete and improving the construction quality; at the same time, the anti-wear layer reduces the probability of the push plate being worn during movement, thereby reducing the probability of concrete entering the gap between the push plate and the formwork and connecting the push plate and the formwork together during pouring, thereby reducing the loss of concrete and improving the convenience of separating the concrete and the formwork; the setting of the push plate also reduces the area for setting the anti-wear layer, so the push plate improves construction quality while also reducing costs.

[0032] Optionally, the winding component includes:

[0033] A winding roller, which is rotatably arranged on the support frame and is used to wind up the draw rope, and the two ends of the draw rope are detachably connected to the two sides of the template close to or away from the cantilever beam; a rotating component for driving the winding roller to rotate is also arranged on the support frame;

[0034] A locking disk, the locking disk being arranged on the winding roller and having a plurality of locking grooves arranged in a circumferential array around the axis of the winding roller;

[0035] A locking rod, which is slidably disposed on the support frame and is snap-fitted to the locking groove for positioning;

[0036] A locking screw is threadedly connected to the support frame and is rotationally connected to the locking rod so that the locking rod is pressed against the locking groove for positioning.

[0037] By adopting the above technical solution, the locking screw is turned to drive the locking rod to disengage from the rotating groove, so that the winding roller can rotate freely, and then the rotating assembly is started to drive the winding roller to rotate. The rotation of the winding roller is used to roll up or release the pull rope. The pull rope is released during dismantling to facilitate the dismantling of the template, and the pull rope is rolled up during installation to facilitate the fixation of the template. After the template is fixed, the locking screw is turned to make the locking rod engage and press against the rotating groove to achieve the fixation of the pull rope. Therefore, the pull rope can be used to hoist and position the template when the template is disassembled and installed, thereby improving the convenience and safety of the template installation and disassembly, and the two ends of the pull rope position the template, thereby improving the stability of the template during construction.

[0038] Optionally, the support frame is provided with a connecting spring connected to the locking rod, the locking rod is provided with a receiving groove, the locking screw extends into the receiving groove and is provided with an annular groove, and the locking rod is threadedly connected with an anti-slip screw extending into the annular groove.

[0039] By adopting the above technical solution, when it is necessary to rotate the winding roller, the anti-slip screw is twisted to disengage from the annular groove, and then the locking screw is twisted to disengage from the accommodating groove. Then the rotating component is started to drive the winding roller to rotate. The rotation of the winding roller drives the locking plate to rotate. The locking plate rotates and squeezes the locking rod so that the locking rod is disengaged from the locking groove. After the rotating component stops rotating, the locking rod is snap-fitted and installed on the locking groove for positioning under the action of the connecting spring, thereby reducing the probability of the winding roller rotating. Therefore, there is no need to manually position the winding roller, thereby improving the convenience of rotating the winding roller to drive the pull rope to move. After the movement is completed, the locking screw is twisted to press against the bottom of the accommodating groove for positioning, and then the anti-slip screw is twisted to extend into the buffer groove for positioning, so as to achieve the positioning of the pull rope.

[0040] When the formwork needs to be removed, the locking screw is turned to drive the locking rod to disengage from the locking groove, so that the winding roller can rotate freely, and then the pushing mechanism is started to separate the formwork and concrete, and the fixing screw can position the formwork, and then the anti-slip screw is turned to disengage from the annular groove, and the locking rod can be snap-fitted and installed on the locking groove for positioning under the action of the connecting spring, so the pull rope positions the formwork, and then the fixing screw and the fixing nut can be removed, and then the pull rope and the formwork can be separated to remove the formwork, so the fixing screw and the pull rope alternately position the formwork, thereby improving the convenience and installation of the formwork during disassembly and assembly.

[0041] Optionally, two lifting rings are provided on the template, hooks hooked onto the lifting rings are provided on both ends of the pull rope, and a force component for supporting the support frame is provided on the roof.

[0042] By adopting the above technical solution, the hook is hooked onto the lifting ring for positioning, thereby improving the convenience when the pull rope is connected to the formwork. The force distribution component supports the support frame, thereby improving the stability of the support frame, thereby improving the supporting effect on the formwork, thereby improving the stability of the construction.

[0043] Optionally, the rotating assembly includes:

[0044] A secondary gear, wherein the secondary gear is arranged on the winding roller;

[0045] A main gear is rotatably arranged on the support frame and meshes with the sub-gear, and the number of teeth on the main gear is greater than the number of teeth on the sub-gear.

[0046] By adopting the above technical solution, rotating the main gear drives the secondary gear to rotate, and the secondary gear drives the winding roller to rotate, so as to realize rotating the main gear to drive the winding roller to rotate, and the number of teeth on the main gear reaches the number of teeth on the secondary gear, thereby saving effort when rotating the winding roller.

[0047] In summary, the present application includes at least one of the following beneficial technical effects:

[0048] The formwork is fixed to the cantilever beam through the fixing assembly, and then the pull rope is connected to the formwork. The winding assembly is then started to tighten the formwork to support and position the formwork, and then concrete is poured on the formwork. Therefore, it will not have an adverse effect on the construction of the lower structure, thereby improving construction efficiency. After the strength of the concrete structure is reached, the fixing assembly is unlocked to separate the formwork and concrete, and then the pushing mechanism pushes the concrete to separate the concrete and the formwork, thereby saving the time spent on removing the formwork and further improving construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 It is a three-dimensional structural schematic diagram of the present application;

[0050] Figure 2 is a schematic diagram of the structure of the fixed assembly in the present application, wherein the main frame and the cantilever beam are cut away;

[0051] Figure 3 is a schematic diagram of the structure of the pushing mechanism in the present application, in which the main frame, the mold plate and the pushing plate are cut away;

[0052] Figure 4 It is a structural schematic diagram of the support frame and the force distribution component in this application;

[0053] Figure 5 It is a schematic diagram of the structure of the winding assembly in this application;

[0054] Figure 6 yes Figure 5 Enlarged schematic diagram of part A in the middle.

[0055] Figure numerals: 1, cantilever beam; 11, fixing hole; 12, connecting spring; 13, anti-slip screw; 14, fixing seat; 15, rotating rod; 16, activity space; 17, roof; 2, template; 21, main frame; 22, template plate; 23, installation hole; 3, fixing assembly; 31, fixing screw; 32, fixing boss; 33, fixing nut; 35, first positioning ring; 36, second positioning ring; 4, pushing mechanism; 41, pushing plate; 42, pushing rod; 43, sliding hole; 44, accommodating hole; 45, pushing plate; 5, pushing assembly; 51, pushing nut; 52, pushing screw; 53, pushing Disk; 54, pushing column; 6, supporting mechanism; 61, supporting frame; 62, pulling rope; 63, first hanging rod; 64, second hanging rod; 65, lifting ring; 66, hook; 7, winding assembly; 71, winding roller; 72, locking disk; 73, locking rod; 74, locking screw; 75, locking groove; 76, first mounting plate; 77, second mounting plate; 78, receiving groove; 8, rotating assembly; 81, secondary gear; 82, main gear; 83, rocker; 9, force component assembly; 91, force component frame; 92, first force component cable; 93, second force component cable; 94, third force component cable; 95, fourth force component cable. DETAILED DESCRIPTION

[0056] The present application is further described in detail below in conjunction with the accompanying drawings 1-6.

[0057] The embodiment of the present application discloses a large overhanging eaves formwork structure for a roof.

[0058] Reference Figure 1 The large cantilevered eaves formwork structure of the roof includes a formwork 2 arranged on the side wall of the cantilever beam 1 through a fixing component 3, a supporting mechanism 6 arranged on the roof 17 to support the formwork 2, and the formwork 2 is also provided with a pushing mechanism 4 for pushing concrete.

[0059] Reference Figure 1 and Figure 2 The template 2 includes a main frame 21 and a template plate 22. The main frame 21 is fixedly installed and connected by four angle steels to form a rectangular frame structure, and the projection of the main frame 21 in the vertical direction is in the shape of a "mouth"; the template plate 22 is fixedly installed on the upper surface of the main frame 21, and the template plate 22 is also in the shape of a rectangular parallelepiped. At the same time, the four side walls of the template plate 22 are flush with the four side walls of the main frame 21, and the side walls of the template plate 22 and the main frame 21 in the length direction are in contact with the side walls of the cantilever beam 1; the upper surface of the template plate 22 and the side walls of the cantilever beam 1 form a pouring space for pouring concrete, and concrete is poured into the pouring space to form a large roof eaves. The large eaves are fixedly connected to the cantilever beam 1, and the shape and size of the template plate 22 and the main frame 21 structure can be matched according to the different shapes and sizes of the large eaves.

[0060] Reference Figure 1 and Figure 2 A mounting hole 23 is provided on the inner wall of the main frame 21 close to the cantilever beam 1, and a fixing hole 11 whose axis coincides with the axis of the mounting hole 23 is provided on the side wall of the cantilever beam 1. A plurality of fixing components 3 are arranged at intervals along the length direction of the main frame 21.

[0061] Reference Figure 1 and Figure 2 The fixing assembly 3 includes a fixing screw 31, a fixing boss 32 and a fixing nut 33. The diameter of the fixing screw 31 is the same as the diameter of the fixing hole 11 and is smaller than the diameter of the mounting hole 23. The fixing boss 32 is truncated cone-shaped and coaxially provided with a threaded hole, and the threaded hole is threadedly connected to the fixing screw 31, and the fixing boss 32 is pressed against the head of the fixing screw 31 for positioning. At the same time, the diameter of the fixing boss 32 close to the head of the fixing screw 31 is larger than the diameter of the mounting hole 23, and the diameter of the fixing boss 32 away from the head of the fixing screw 31 is smaller than the diameter of the mounting hole 23. The fixing screw 31 passes through the mounting hole 23 and the fixing hole 11; the fixing nut 33 is threadedly connected to the fixing screw 31, and the fixing nut 33 is pressed against the side wall of the cantilever beam 1 away from the main frame 21, and at the same time, the fixing boss 32 is pressed against the mounting hole 23 for positioning, so that there is a movable gap between the fixing screw 31 and the mounting hole 23.

[0062] Reference Figure 1 and Figure 2 A first positioning ring 35 and a second positioning ring 36 are coaxially fixedly installed on the outer wall of the fixed boss 32, and the first positioning ring 35 is located on the side of the second positioning ring 36 close to the head of the fixed screw 31, and the second positioning ring 36 is clamped and installed on the mounting hole 23 for support and positioning, and the first positioning ring 35 is pressed against the side wall of the main frame 21 for positioning under the action of the fixing nut 33.

[0063] Reference Figure 1 and Figure 2, pass the fixing screw 31 through the mounting hole 23 and the fixing hole 11 in sequence, so that the second positioning ring 36 is snap-fitted and installed on the fixing hole 11 for support, and the first positioning ring 35 is against the inner wall of the main frame 21, and then the fixing nut 33 is threadedly connected to the fixing screw 31, so that the fixing nut 33 is tightly pressed against the cantilever beam 1, and the first positioning ring 35 is pressed against the side wall of the main frame 21 for positioning; then pour concrete into the pouring space, so that the concrete and the cantilever beam 1 are connected together; after the concrete structure strength is reached, screw the fixing nut 33 away from the cantilever beam 1, and then knock the fixing screw 31 to make the second positioning ring 36 disengage from the mounting hole 23, so that the main frame 21 can move downward due to the gap between the fixing screw 31 and the mounting hole 23, and then the pushing mechanism 4 starts to push the concrete, so that the formwork plate 22 and the concrete are separated, and then the fixing screw 31 and the fixing nut 33 are continued to be removed, so that the entire template 2 can be disassembled.

[0064] Reference Figure 1 and Figure 3 The pushing mechanism 4 includes a pushing plate 41, a plurality of pushing rods 42 and a pushing assembly 5. The pushing plate 41 is in a rectangular shape and its four side walls are in contact with the four side walls of the main frame 21, so that the pushing plate 41 can be vertically slidably installed on the inner wall of the main frame 21, and the pushing plate 41 is located above the fixing screw 31; a plurality of sliding holes 43 penetrating the mold plate 22 are horizontally spaced apart on the upper surface of the mold plate 22, and a receiving hole 44 is coaxially opened at the top of each sliding hole 43; a plurality of pushing rods 42 are fixedly installed on the upper surface of the pushing plate 41, and a plurality of pushing rods 42 and A plurality of sliding holes 43 are arranged in one-to-one correspondence, and a plurality of push rods 42 are in a vertical state, and the push rods 42 are slidably penetrated through the sliding holes 43; the top end of the push rod 42 is coaxially fixedly installed on a push plate 45, and the diameter of the push plate 45 is larger than the diameter of the push rod 42, and the push plate 45 is slidably penetrated through the accommodating hole 44, and an anti-wear layer for reducing wear is provided on the outer wall of the push plate 45, and the diameter of the anti-wear layer is the same as the diameter of the accommodating hole 44, and when the top end of the push plate 45 is flush with the upper surface of the mold plate 22, the bottom end of the push plate 45 abuts against the bottom end of the accommodating hole 44.

[0065] Reference Figure 1 and Figure 3The pushing component 5 is arranged on the template 2 and is used to drive the pushing plate 41 to move. The pushing component 5 includes a pushing nut 51, a pushing screw 52 and a pushing plate 53; the pushing nut 51 is fixedly installed on the lower surface of the pushing plate 41, and the top end of the pushing screw 52 is rotatably installed on the lower surface of the mold plate 22, and the pushing screw 52 vertically passes through the pushing plate 41, and at the same time, the pushing screw 52 is threadedly connected with the pushing nut 51, and the bottom end of the pushing screw 52 extends below the pushing nut 51; a pushing column 54 is coaxially fixedly installed on the upper surface of the pushing plate 53, and the top end of the pushing column 54 is coaxially connected with the bottom end of the pushing screw 52; when the top end of the pushing plate 45 is flush with the upper surface of the mold plate 22, an active space 16 is formed between the upper surface of the pushing plate 41 and the lower surface of the template 2, and the active space 16 is for the pushing plate 41 to move up and down, and at the same time, the pushing nut 51 is pressed against the pushing column 54 for positioning.

[0066] Reference Figure 1 and Figure 3 , the push plate 41 is rotated to move upward, and the push plate 41 moves upward to drive the push rod 42 and the push plate 45 to move upward, while the concrete is fixed, so that the formwork plate 22 moves downward and separates from the concrete, and then rotates to make the push plate 41 and the push plate 45 move downward, and when the push plate 41 is pressed against the push column 54, the top of the push plate 45 is flush with the upper surface of the formwork plate 22, thereby realizing the separation of the concrete and the formwork 2.

[0067] Reference Figure 1 and Figure 4 The support mechanism 6 includes a support frame 61, a pull rope 62 and a winding assembly 7. The support frame 61 is fixedly installed on the upper surface of the roof 17. A force component 9 for supporting the support frame 61 is arranged on the roof 17. The force component 9 includes a force frame 91, a first force component cable 92, a second force component cable 93, a third force component cable 94, and a fourth force component cable 95. The force frame 91 is fixedly installed on the upper surface of the roof 17, and the force frame 91 is located on the side of the support frame 61 away from the template 2, and the shape and size of the force frame 91 are the same as those of the support frame 61. At the same time, the force frame 91 and the support frame 61 are fixedly connected together by a plurality of channel steels through screws and nuts, and the bottom of the force frame 91 and the support frame 61 It is also fixedly connected to the roof 17 by a screw; one end of the first component cable 92 is fixedly mounted on the side wall of the support frame 61, and the second component cable 93 is fixedly mounted on the side wall of the force frame 91, and at the same time, the other ends of the first component cable 92 and the second component cable 93 are fixedly connected to the roof 17, and the angle between the top of the first component cable 92 and the second component cable 93 and the force frame 91 is greater than or equal to 45 degrees; both ends of the third component cable 94 and the fourth component cable 95 are fixedly mounted on the side wall on the opposite side of the support frame 61 and the force frame 91, and the third component cable 94 and the fourth component cable 95 cross-match with each other to form an "X" shape, so as to realize the force distribution of the tension exerted on the support frame 61.

[0068] Reference Figure 1 A first hanging rod 63 and a second hanging rod 64 are fixedly installed on the side walls at both ends of the main frame 21 in the length direction, and the first hanging rod 63 is located on the side of the second hanging rod 64 away from the support frame 61, and the top ends of the first hanging rod 63 and the second hanging rod 64 are vertically extended to above the mold plate 22 and the roof roof 17 and are fixedly installed with a hanging ring 65; two pull ropes 62 are provided and are arranged one by one corresponding to the two ends of the main frame 21, the pull rope 62 is installed on the support frame 61 and hooks 66 are fixedly installed at both ends, and the two hooks 66 are respectively hooked on the hanging rings 65 located on the first hanging rod 63 and the second hanging rod 64, so the two pull ropes 62 located at the two ends of the main frame 21 jointly position the main frame 21 and the mold plate 22.

[0069] Reference Figure 1 and Figure 5 Two fixed seats 14 are fixedly installed on the side wall of the support frame 61 on the side close to the main frame 21 at intervals along the length direction of the main frame 21. The winding assembly 7 is arranged on the two fixed seats 14 and is used to wind up or release the pull rope 62. The winding assembly 7 includes a winding roller 71, a locking disk 72, a locking rod 73 and a locking screw 74; a rotating rod 15 is horizontally rotatably installed on the side wall on the opposite side of the two fixed seats 14, and the axis of the rotating rod 15 is parallel to the length direction of the main frame 21; two winding rollers 71 are arranged and correspond to the two pull ropes 62 one by one, and the two winding rollers 71 are coaxially fixed on the rotating rod 15, and the two pull ropes 62 are respectively wound on the two winding rollers 71, so the winding roller 71 rotates and releases the pull rope 62 or winds up the pull rope 62 at the same time, so that the two ends of the pull rope 62 move at the same time.

[0070] Reference Figure 1 and Figure 5 One end of the rotating rod 15 passes through the outside of the fixed seat 14, and the fixed seat 14 is also provided with a rotating component 8 for driving the winding roller 71 to rotate. The rotating component 8 includes a sub-gear 81 and a main gear 82. The sub-gear 81 is keyed to the end of the rotating rod 15 that passes through the outside of the fixed seat 14, and the main gear 82 is rotatably installed on the side wall of the fixed seat 14, and the main gear 82 is meshed with the sub-gear 81. At the same time, the number of teeth of the main gear 82 is greater than the number of teeth of the sub-gear 81, and a rocker 83 is fixedly installed on the main gear 82 for facilitating the rotation of the main gear 82.

[0071] Reference Figure 5 and Figure 6The locking plate 72 is coaxially fixedly mounted on the end of the rotating rod 15 that passes through the fixed seat 14. The locking plate 72 is located between the sub-gear 81 and the fixed seat 14, and the locking plate 72 is provided with a plurality of locking grooves 75 in a circular array around the axis of the winding roller 71. At the same time, the locking grooves 75 are in a semicircular arc shape, and the notches of the locking grooves 75 are also provided with chamfered corners; a first mounting plate 76 and a second mounting plate 77 are vertically spaced and fixedly mounted on the side wall of the fixed seat 14 above the locking plate 72, and the first mounting plate 76 is located below the second mounting plate 77; the locking rod 73 is vertically slidably penetrated on the first mounting plate 76, and a circular accommodating groove 78 is provided on the top of the locking rod 73.

[0072] Reference Figure 1 and Figure 5 When locking sill 75 , locking sill 77 is in the action of spring 72 and locking sill 77 is in the action of spring 72. When locking sill 77 is in the action of spring 72, locking sill 77 is in the action of spring 72 and locking sill 77 is in the action of spring.

[0073] Reference Figure 1 , Figure 5 and Figure 6 If locking sill 752 is in the state of being in the state of being fully operative, the locking rod 731 of locking sill 752 of locking sill 732 of locking sill 733 will be locked in the state of being fully operative, and the locking rod 731 of locking sill 732 of locking sill 733 will be locked in the state of being fully operative, and the locking rod 731 of locking sill 733 of locking sill 733 will be locked in the state of being fully operative, and the locking rod 731 of locking sill 733 of locking sill 733 will be locked in the state of being fully operative, and the

[0074] Reference Figure 1, Figure 2 and Figure 6 When the formwork 2 needs to be removed, the locking screw 74 is turned to drive the locking rod 73 to disengage from the locking groove 75, and then the fixing nut 33 is turned away from the cantilever beam 1, and then the fixing screw 31 is knocked to disengage the second positioning ring 36 from the mounting hole 23, and then the pushing mechanism 4 is started to push the formwork plate 22 to disengage from the concrete, and then the anti-detachment screw 13 is turned to disengage from the annular groove, and the locking rod 73 is snap-fitted and installed on the locking groove 75 for positioning, and then the fixing screw 31 and the fixing nut 33 can be removed, and then the hook 66 on the pull rope 62 can be removed, so as to realize the disassembly of the formwork 2.

[0075] The working principle of the embodiment of the present application is as follows:

[0076] The hooks 66 at both ends of the pull rope 62 are hooked to the two lifting rings 65 at the same end of the main frame 21, and at the same time, the hooks 66 at both ends of the other pull rope 62 are hooked to the other two lifting rings 65, and the main gear 82 is rotated to drive the winding roller 71 to rotate and drive the template 2 to move up. After moving up to the predetermined position, the locking rod 73 is clamped and installed on the locking groove 75 under the action of the connecting spring 12 for positioning, and then the main frame 21 is pushed up, and then the fixing screw 31 is passed through the mounting hole 23 and the fixing hole 11, so that the second fixing The positioning ring 36 is snap-fitted and installed on the mounting hole 23, and then the fixing nut 33 is threadedly connected to the fixing screw 31, so that the fixing nut 33 is pressed against the cantilever beam 1, and the first positioning ring 35 is pressed against the main frame 21 for positioning, and then the main gear 82 is continued to be rotated to tighten the pull rope 62, and the locking rod 73 is snap-fitted and installed on the locking groove 75 for positioning, and then the locking screw 74 is turned to press against the bottom of the accommodating groove 78 to position the locking rod 73, and then concrete is poured on the mold plate 22.

[0077] When the strength of the concrete structure is reached, the locking screw 74 is turned to drive the locking rod 73 to disengage from the locking groove 75, so that the winding roller 71 can rotate freely, the fixing nut 33 is turned away from the cantilever beam 1, and the fixing screw 31 is knocked to disengage the second positioning ring 36 from the mounting hole 23, and then the pushing plate 53 is turned to drive the pushing plate 41 and multiple pushing plates 45 to move upward, and multiple pushing plates 45 simultaneously push the concrete, so that the formwork plate 22 moves downward and separates from the concrete, and the fixing screw 31 is used to block and position the template 2, and then the anti-slip screw 13 is turned to disengage from the buffer groove, and the locking rod 73 is clamped and installed on the locking plate 72 under the action of the connecting spring 12 to position the pull rope 62, and then the fixing screw 31 and the fixing nut 33 can be removed, and the pull rope 62 positions the template 2, and finally the hook 66 is removed from the lifting ring 65 to complete the disassembly of the template 2, thereby realizing the construction of the large roof eaves, thereby improving the construction efficiency and construction quality.

[0078] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A large overhanging eaves formwork structure for a roof, characterized in that: The invention comprises a template (2) arranged on a cantilever beam (1) via a fixing assembly (3), a supporting mechanism (6) arranged on a roof top (17) and used to support the template (2), the template (2) also being provided with a driving mechanism (4) for driving the template (2) to separate from concrete, the supporting mechanism (6) comprising: A support frame (61), wherein the support frame (61) is arranged on the roof (17); A pull rope (62), the pull rope (62) being arranged on the template (2) and connected to the support frame (61) and used to support the template (2); A reeling assembly (7), the reeling assembly (7) being arranged on the support frame (61) and being used for reeling in or releasing the drawstring (62); The pushing mechanism (4) comprises: A push plate (41), wherein the push plate (41) is slidably disposed on the template (2); A plurality of push rods (42), wherein the plurality of push rods (42) are arranged on the push plate (41) and are slidably disposed on the formwork (2) and are used to push the formwork (2) away from concrete; A pushing component (5), the pushing component (5) being arranged on the template (2) and being used to drive the pushing plate (41) to move; The winding component (7) comprises: A winding roller (71), the winding roller (71) being rotatably disposed on the support frame (61) and being used for winding up the drawstring (62), the two ends of the drawstring (62) being detachably connected to two sides of the template (2) close to or away from the cantilever beam (1); a rotating assembly (8) for driving the winding roller (71) to rotate is also disposed on the support frame (61); A locking disk (72), wherein the locking disk (72) is disposed on the winding roller (71) and is provided with a plurality of locking grooves (75) in a circular array around the axis of the winding roller (71); A locking rod (73), the locking rod (73) being slidably disposed on the support frame (61) and being snap-fitted onto the locking groove (75) for positioning; A locking screw (74), wherein the locking screw (74) is threadedly connected to the support frame (61) and is rotationally connected to the locking rod (73) so that the locking rod (73) is pressed against the locking groove (75) for positioning; The support frame (61) is provided with a connecting spring (12) connected to the locking rod (73); the locking rod (73) is provided with a receiving groove (78); the locking screw (74) extends into the receiving groove (78) and is provided with an annular groove; the locking rod (73) is threadedly connected with an anti-slip screw (13) extending into the annular groove.

2. The large overhanging eaves formwork structure for roof according to claim 1, characterized in that: The template (2) is provided with a mounting hole (23), and the fixing assembly (3) comprises: A fixing screw rod (31), the fixing screw rod (31) passing through the mounting hole (23) and the cantilever beam (1) and having a diameter smaller than the diameter of the mounting hole (23); A fixing boss (32), the fixing boss (32) being arranged on the fixing screw (31) and being in the shape of an inclined truncated cone and being pressed against the mounting hole (23) for positioning; A fixing nut (33), wherein the fixing nut (33) is threadedly connected to the fixing screw rod (31) and pressed against the cantilever beam (1) for positioning.

3. The large overhanging eaves formwork structure for roof according to claim 2, characterized in that: The fixing boss (32) is threadedly connected to the fixing screw (31) through a threaded hole and pressed against the head of the fixing screw (31) for positioning; the fixing boss (32) is provided with a first positioning ring (35) pressed against the side wall of the template (2) and a second positioning ring (36) clamped and mounted on the mounting hole (23).

4. The large overhanging eaves formwork structure for roof according to claim 1, characterized in that: The pushing component (5) comprises: A push nut (51), wherein the push nut (51) is arranged on the push plate (41); A pushing screw (52), the pushing screw (52) being rotatably disposed on the template (2) and being threadably connected to the pushing nut (51); A push plate (53) is provided on the bottom end of the push screw (52). When the push rod (42) is flush with the upper surface of the template (2), the push nut (51) is pressed against the push plate (53) for positioning. A movable space (16) is formed between the push plate (53) and the template (2) for the push plate (41) to move.

5. The large overhanging eaves formwork structure for roof according to claim 1, characterized in that: A push plate (45) for pushing concrete is arranged at the top end of the push rod (42); the push plate (45) has a diameter greater than that of the push rod (42) and is slidably disposed on the push plate (41); and an anti-wear layer is also arranged on the outer wall of the push plate (45).

6. The large overhanging eaves formwork structure for roof according to claim 1, characterized in that: The template (2) is provided with two hanging rings (65), both ends of the pull rope (62) are provided with hooks (66) hooked onto the hanging rings (65), and the roof top (17) is provided with a force component (9) for supporting the support frame (61).

7. The large overhanging eaves formwork structure for roof according to claim 1, characterized in that: The rotating assembly (8) comprises: A secondary gear (81), wherein the secondary gear (81) is arranged on the winding roller (71); A main gear (82), the main gear (82) being rotatably disposed on the support frame (61) and meshing with the sub-gear (81), the number of teeth of the main gear (82) being greater than the number of teeth of the sub-gear (81).

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