CN116084684A - A roof formwork support structure with large overhanging eaves - Google Patents

Abstract

This application relates to a formwork support structure for large overhanging eaves on the roof, and relates to the technical field of overhanging eaves on the roof, including a formwork and a supporting mechanism. The formwork is still provided with a pushing mechanism. The supporting mechanism includes: a support frame, which is arranged on the roof of the roof on; the drawstring is arranged on the formwork and is connected with the support frame and is used to support the formwork; the winding component is arranged on the support stand and is used for winding up or releasing the stayrope. In this application, the formwork is fixedly installed on the cantilever beam through the fixing component, and then the pull rope is connected with the formwork, and then the winding component starts to tighten the formwork to support and position the formwork, and then pours concrete on the formwork, so there will be no damage to the formwork. The construction of the substructure will cause adverse effects, thereby improving the construction efficiency.

Description

A roof formwork support structure with large overhanging eaves

technical field

The present application relates to the technical field of large overhanging eaves on roofs, in particular to a formwork support structure for large overhanging eaves on roofs.

Background technique

The roof of many construction projects is a cantilevered cast-in-place roof. The overhanging eaves refer to the part of the roof protruding from the outer wall. It is mainly for the convenience of roof drainage and also protects the outer wall.

The roof generally consists of cantilevered beams and multiple struts used to support the cantilevered beams. The floor structure of the lower floor is connected to the struts. When constructing the large roof eaves on the roof, it is necessary to install a cast formwork on the roof. , the poured formwork needs to be provided with a fixed structure. In the existing technology, I-beams are generally fixedly installed in the lower floor structure. However, the scaffolding needs to be removed after the concrete structure reaches its strength, and the lower structure will also be decorated or ground construction, and the existence of the scaffolding will adversely affect the construction in the lower layer, thereby reducing the construction efficiency, and there is another way to set up a tripod The formwork is supported, but the distance between adjacent poles is large, so the stability of the tripod set on the poles is poor, which cannot meet the supporting effect on the formwork, resulting in poor stability during construction.

Contents of the invention

In order to improve construction efficiency and stability, the application provides a formwork support structure with large overhanging eaves on the roof.

The formwork support structure of a large overhanging eaves on the roof provided by the application adopts the following technical scheme:

A large eaves formwork support structure on the roof, including a formwork set on the cantilever beam through a fixed assembly, a support mechanism set on the roof and used to support the formwork, and the formwork is also provided with a drive The pushing mechanism for separating the formwork from the concrete, and the supporting mechanism includes:

A support frame, the support frame is arranged on the roof of the roof;

A stay rope, the stay rope is arranged on the formwork and is connected with the support frame and used to support the formwork;

The winding assembly is arranged on the supporting frame and is used for winding or releasing the pull rope.

By adopting the above technical scheme, the formwork is fixedly installed on the cantilever beam through the fixing component, and then the stay rope is connected with the formwork, and then the rewinding stay rope activated by the winding component makes the stay rope tighten the formwork to support the formwork Positioning, and then pouring concrete on the formwork, so it will not adversely affect the construction of the substructure, thereby improving construction efficiency; and after the concrete structure strength is reached, unlock the fixing components to separate the formwork and concrete, and then the pushing mechanism pushes the concrete so that Concrete and formwork are detached, thereby saving time spent on removing formwork, thus further improving construction efficiency.

At the same time, the stay rope supports and positions the formwork, thereby improving the stability when the formwork is used for construction, thus improving the construction efficiency and construction stability at the same time.

Optionally, mounting holes are provided on the template, and the fixing components include:

a fixing screw, the fixing screw passes through the installation hole and the cantilever beam and has a diameter smaller than that of the installation hole;

A fixed boss, the fixed boss is arranged on the fixed screw rod and is in the shape of an inclined circular platform and pressed against the mounting hole for positioning;

The fixing nut is threadedly connected to the fixing screw rod and pressed against the cantilever beam for positioning.

By adopting the above technical solution, the fixing screw rod is passed through the mounting hole and the cantilever beam, and then the fixing nut is threadedly connected to the fixing screw rod, so that the fixing nut is pressed against the cantilever beam, and the fixing boss is pressed against the mounting hole. Positioning, so there is an avoidance space between the fixing screw and the side wall of the mounting hole. When the formwork needs to be removed, turn the fixing nut away from the cantilever beam, tap the fixing screw to separate the fixing boss from the mounting hole, and then push the mechanism to start Push the concrete and formwork to separate, so the pushing mechanism can be activated to separate the formwork from the concrete without removing the fixing nuts and fixing screws, which improves the convenience of disassembling and assembling the formwork, thereby improving the construction efficiency;

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, and then remove the fixing nut and fixing screw to realize the disassembly of the formwork, so the construction efficiency is improved at the same time It also improves the safety during construction.

Optionally, the fixing boss is threadedly connected to the fixing screw through a threaded hole and positioned against the head of the fixing screw; the fixing boss is provided with a first positioning ring pressed against the side wall of the formwork and the second positioning ring snap-fitted on the mounting hole.

By adopting the above technical solution, the first positioning ring disperses the force received by the fixed boss, and the second positioning ring is clamped and installed on the mounting hole to support the component force, thereby reducing the probability of damage to the fixed boss and the fixed screw. Therefore, the fixing effect on the template is improved, and the stability of the template is improved; the fixed boss, the first positioning ring and the second positioning ring can be adapted according to different mounting hole sizes, and the fixed boss, the first positioning The ring and the second positioning ring can also be replaced after being damaged, thus improving the adaptation range of the fixing boss, the first positioning ring and the second positioning ring and the supporting effect of the fixing boss.

Optionally, the pushing mechanism includes:

a push plate, the push plate is slidably arranged on the formwork;

A plurality of push rods, the plurality of push rods are arranged on the push plate and slide through the formwork and are used to push the formwork away from the concrete;

The push assembly is arranged on the formwork and is used to drive the push plate to move.

By adopting the above-mentioned technical scheme, the pusher component starts to drive the push plate to move, and the push plate moves to drive multiple push rods to push the concrete at the same time, and the concrete generates a reaction force to separate the formwork from the concrete, thereby realizing the separation of the formwork from the concrete, and through multiple push rods at the same time Push the concrete, thereby reducing the probability of damage to the concrete, thus improving the convenience when the formwork and concrete are separated, thus improving the construction efficiency and the quality of the construction.

Optionally, the pushing components include:

push the nut, the push nut is arranged on the push plate;

Pushing the screw rod, the said pushing screw rod is rotatably arranged on the template and threadedly connected with the push nut;

A push plate, the push plate is arranged on the bottom end of the push screw, when the push rod is flush with the upper surface of the formwork, the push nut presses against the push plate for positioning, and the push plate and the formwork form a There is a movable space for the push plate to move.

By adopting the above technical scheme, the rotation of the push screw drives the push plate to move to separate the concrete from the formwork, and at the same time the push plate presses against the formwork for positioning, so the size of the movable space between the push plate and the formwork can be designed according to the needs, thereby reducing the concrete and formwork. Turning the push screw makes the push rod move too far and increases the damage caused by the push rod to the concrete. Therefore, the construction quality is improved while the concrete and the formwork are separated; at the same time, when the push rod is flush with the upper surface of the formwork, the push rod The 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 concrete entering the gap between the push rod and the formwork and the push rod and the formwork. The probability that the formwork is connected together improves the convenience of removing the formwork, thereby improving the construction efficiency.

Optionally, the top of the push rod is provided with a push plate for pushing concrete, and the diameter of the push plate is larger than the diameter of the push rod and is slid on the push plate, and the outer wall of the push plate is also provided with an anti-wear layer .

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 wear during the movement of the push plate, so It reduces the probability of connecting the push plate and the formwork by entering the gap between the push plate and the formwork when pouring concrete, thereby reducing the loss of concrete and improving the convenience of separating the concrete and formwork; the setting of the push plate also The area for setting the anti-wear layer is reduced, so the push plate improves the construction quality and also reduces the cost.

Optionally, the winding assembly includes:

Rewinding roller, the rewinding roller is rotatably arranged on the support frame and is used to rewind the stay rope, and the two ends of the stay rope are detachably connected to the two sides of the formwork that are close to or away from the cantilever beam; There is also a rotating assembly that drives the winding roller to rotate;

A locking disc, the locking disc is arranged on the winding roller and is provided with a plurality of locking grooves in a circumferential array around the axis of the winding roller;

a locking rod, the locking rod is slidably arranged on the support frame and clamped and installed on the locking groove for positioning;

A locking screw, the locking screw is threadedly connected to the support frame and is rotatably connected to the locking rod so that the locking rod presses against the locking groove for positioning.

By adopting the above technical scheme, turning the locking screw drives the locking rod to disengage from the rotating groove, so that the winding roller can rotate freely, and then the rotating assembly starts to drive the winding roller to rotate, and the winding roller rotates for winding or releasing the pull rope. Release the drawstring to facilitate the disassembly of the formwork during dismantling, and wind up the drawcord to facilitate the fixation of the formwork during installation. After the formwork is fixed, turn the locking screw so that the locking rod is clamped and pressed against the rotating groove to achieve The stay rope is fixed, so the stay rope can hoist and position the formwork when the formwork is disassembled and installed, thereby improving the convenience and safety of formwork installation and disassembly, and the two ends of the stay rope can position the formwork, thereby improving the formwork Stability during construction.

Optionally, the support frame is provided with a connecting spring connected to the locking rod, and the locking rod is provided with a receiving groove, and the locking screw extends into the receiving groove and is provided with an annular groove, and the locking rod The upper screw connection is provided with an anti-off screw rod extending into the annular groove.

By adopting the above-mentioned technical scheme, when it is necessary to rotate the winding roller, turn the anti-loosening screw to disengage from the annular groove, then turn the locking screw to disengage from the receiving groove, and then start the rotating assembly to drive the winding roller to rotate, and the rotation of the winding roller drives the locking disc Rotate, the locking disc rotates and squeezes the locking rod so that the locking rod is separated from the locking groove, and after the rotating assembly stops rotating, the locking rod is clamped and installed on the locking groove under the action of the connecting spring for positioning, thereby reducing the rotation of the winding roller. Probability, so there is no need to manually position the winding roller, so it improves the convenience when turning the winding roller to drive the pull cord to move. The anti-off screw rod extends into the buffer groove for positioning, so as to realize the positioning of the stay rope.

When the formwork needs to be disassembled, turn the locking screw to drive the locking rod to disengage from the locking groove, so the winding roller can rotate freely, and then the pushing mechanism starts to separate the formwork from the concrete, and the fixing screw can position the formwork, and then turn the anti- The take-off screw is separated from the annular groove, and the locking rod can be clamped and installed on the locking groove under the action of the connecting spring for positioning, so the pull rope can position the template, and then the fixing screw and the fixing nut can be removed, and then the pull rope and the template can be removed. The formwork can be removed after being disassembled, so the fixing screw rods and pull ropes alternately position the formwork, thereby improving the convenience and installation of the formwork during disassembly and assembly.

Optionally, two suspension rings are provided on the template, hooks hooked to the suspension rings are provided at both ends of the stay rope, and a force component for supporting the support frame is provided on the roof .

By adopting the above technical solution, the hook is hooked to the suspension ring for positioning, thereby improving the convenience when the stay rope is connected to the formwork, and the force component supports the support frame, thereby improving the stability of the support frame. Therefore, the supporting effect on the formwork is improved, thereby improving the stability of the construction.

Optionally, the rotating assembly includes:

A pinion gear, the pinion gear is arranged on the winding roller;

The main gear, the main gear is rotatably arranged on the support frame and meshes with the auxiliary gear, and the number of teeth of the main gear is greater than the number of teeth of the auxiliary gear.

By adopting the above technical scheme, rotating the main gear drives the auxiliary gear to rotate, and the rotation of the auxiliary gear drives the winding roller to rotate, so as to realize the rotation of the main gear to drive the winding roller to rotate, and the number of teeth of the main gear reaches the number of teeth of the auxiliary gear, so that the rotation of the winding roller Save effort when rolling the roller.

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

The formwork is fixedly installed on the cantilever beam through the fixing component, and then the stay rope is connected with the formwork, and then the winding component starts to tighten the formwork to support and position the formwork, and then pours concrete on the formwork, so that the substructure will not be damaged The construction will cause adverse effects, thereby improving the construction efficiency; after the concrete structure strength is reached, the fixed components will be unlocked to separate the formwork from the concrete, and then the pushing mechanism will push the concrete to separate the concrete from the formwork, thereby saving the time spent on removing the formwork. Therefore, the construction efficiency is further improved.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the present application;

Fig. 2 is a structural schematic diagram of the fixed assembly in the present application, wherein the main frame and the cantilever beam are cut-away;

Fig. 3 is the structural representation of pushing mechanism among the present application, wherein carried out section to main frame, template body plate and push plate;

Fig. 4 is a structural schematic diagram of a support frame and a force component in the present application;

Fig. 5 is a schematic structural view of the winding assembly in the present application;

FIG. 6 is an enlarged schematic view of part A in FIG. 5 .

Reference signs: 1, cantilever beam; 11, fixing hole; 12, connecting spring; 13, anti-loosening screw; 14, fixed seat; 15, rotating rod; 16, activity space; 17, roof; 2, template 21, main frame; 22, template body plate; 23, mounting hole; 3, fixed assembly; 31, fixed screw rod; 32, fixed boss; 33, fixed nut; 35, first positioning ring; 36, second positioning Ring; 4, push mechanism; 41, push plate; 42, push rod; 43, sliding hole; 44, accommodation hole; 45, push plate; 5, push assembly; 51, push nut; 52, push screw rod; 53, Push plate; 54, push column; 6, support mechanism; 61, support frame; 62, drawstring; 63, first hanging rod; 64, second hanging rod; 65, suspension ring; 66, hook; 7, winding assembly ; 71, winding roller; 72, locking disc; 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; 91, force frame; 92, first force component cable; Component force cable; 95, the fourth component force cable.

Detailed ways

The present application will be described in further detail below in conjunction with drawings 1-6.

The embodiment of the present application discloses a formwork support structure for large overhanging eaves on a roof.

Referring to Fig. 1, the formwork support structure of the large roof overhanging eaves includes a formwork 2 arranged on the side wall of the cantilever beam 1 through a fixed assembly 3, a support mechanism 6 arranged on the roof 17 to support the formwork 2, and the formwork 2 A pushing mechanism 4 for pushing concrete is also provided.

Referring to Fig. 1 and Fig. 2, the template 2 includes a main frame 21 and a template body plate 22, the main frame 21 is fixedly installed and connected by four angle steels to form a rectangular parallelepiped frame mechanism, and the projection of the main frame 21 in the vertical direction is " and the template body plate 22 is fixedly installed on the upper surface of the main frame 21, and the template body plate 22 is also in the shape of a cuboid, and the four side walls of the template body plate 22 are respectively flush with the four side walls of the main frame 21 flat, and the formwork plate 22 and the side walls in the length direction of the main frame 21 are in contact with the sidewalls of the cantilever beam 1; the upper surface of the formwork plate 22 and the sidewall of the cantilever beam 1 form a pouring space for pouring concrete. In-pouring concrete forms the large overhanging eaves of the roof, which are fixedly connected with the cantilever beam 1, and the shape and size of the formwork plate 22 and the main frame 21 structure can also be matched according to the shape and size of the overhanging eaves.

1 and 2, the main frame 21 is provided with a mounting hole 23 on the inner wall near the cantilever beam 1 side, and the cantilever beam 1 side wall is provided with a fixing hole 11 whose axis coincides with the axis of the mounting hole 23. There are multiple components 3 arranged at intervals along the length direction of the main frame 21 .

1 and 2, the fixing assembly 3 includes a fixing screw 31, a fixing boss 32 and a fixing nut 33, and the fixing screw 31 has the same diameter as the fixing hole 11 and is smaller than the diameter of the mounting hole 23, and the fixing boss 32 is in the shape of a truncated cone and A threaded hole is provided coaxially, and the threaded hole is threadedly connected to the fixed screw rod 31, and the fixed boss 32 is pressed against the head of the fixed screw rod 31 for positioning, and the diameter of the end of the fixed boss 32 near the head of the fixed screw rod 31 is larger than that Hole 23 diameter, and fixed boss 32 is away from fixed screw rod 31 head end diameters less than mounting hole 23 diameters, and fixing screw rod 31 passes mounting hole 23 and fixing hole 11; 33 is pressed against the side wall of the cantilever beam 1 away from the side of the main frame 21, and at the same time the fixed boss 32 is pressed against the mounting hole 23 for positioning, so there is a movable gap between the fixing screw 31 and the mounting hole 23. gap.

Referring to Fig. 1 and Fig. 2, the first positioning ring 35 and the 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 near the head of the second positioning ring 36 near the fixed screw rod 31. side, and the second positioning ring 36 is clamped and installed on the mounting hole 23 for supporting 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 .

1 and 2, the fixing screw 31 is sequentially passed through the mounting hole 23 and the fixing hole 11, so that the second positioning ring 36 is clamped and installed on the fixing hole 11 for support, while the first positioning ring 35 is in contact with the main frame 21 On the inner side wall, then the fixed nut 33 is threadedly connected to the fixed screw rod 31, so that the fixed nut 33 is pressed against the cantilever beam 1, and the first positioning ring 35 is pressed against the main frame 21 side wall for positioning; Pouring concrete in 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 and the installation hole 23 Detach, so the main frame 21 can move down because there is a gap between the fixing screw rod 31 and the mounting hole 23, then the pushing mechanism 4 starts to push the concrete, so that the formwork plate 22 and the concrete are separated, and then continue to remove the fixing screw rod 31 and the fixing nut 33 , so that the entire formwork 2 can be disassembled.

Referring to Fig. 1 and Fig. 3, the pushing mechanism 4 comprises a push plate 41, a plurality of push rods 42 and a push assembly 5, the push plate 41 is in the shape of a cuboid and the four side walls interfere with the four side walls of the main frame 21, so that the push plate 41 can be vertically slidably installed on the inner wall of the main frame 21, and the push plate 41 is located above the fixed screw rod 31; The top of each sliding hole 43 is coaxially provided with an accommodating hole 44; a plurality of push rods 42 are fixedly mounted on the upper surface of the push plate 41, and the plurality of push rods 42 are arranged in one-to-one correspondence with the plurality of sliding holes 43. Two push rods 42 are in a vertical state, and the push rod 42 slides and passes through the sliding hole 43; the top end of the push rod 42 is coaxially fixed on the push plate 45, and the diameter of the push plate 45 is greater than the diameter of the push rod 42, and at the same time The push plate 45 slides and is installed on the accommodation hole 44, and the outer wall of the push plate 45 is provided with an anti-wear layer that reduces wear, and the diameter of the anti-wear layer is the same as the diameter of the accommodation hole 44, while the top of the push plate 45 and the template plate When the upper surface of 22 is flush, the bottom end of the push plate 45 is in contact with the bottom end of the receiving hole 44 .

Referring to Fig. 1 and Fig. 3, push assembly 5 is arranged on template 2 and is used for driving push plate 41 to move, push assembly 5 comprises push nut 51, push screw rod 52 and push plate 53; Push nut 51 is fixedly installed under push plate 41 On the surface, the top of the push screw 52 is rotated and installed on the lower surface of the template body plate 22, and the push screw 52 passes through the push plate 41 vertically, and the push screw 52 is threaded with the push nut 51 simultaneously, and the bottom end of the push screw 52 extends to the push plate 41. Below the nut 51; on the upper surface of the push plate 53, a push post 54 is coaxially fixedly installed, and the top of the push post 54 is coaxially connected with the bottom end of the push screw rod 52; A movable space 16 is formed between the upper surface of the push plate 41 and the lower surface of the template 2, and the movable space 16 is used for the push plate 41 to move up and down, and the push nut 51 is pressed against the push column 54 for positioning.

Referring to Fig. 1 and Fig. 3, the rotation of the push plate 53 drives the push plate 41 to move upward, and the upward movement of the push plate 41 drives 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 is separated from the concrete. , and then rotate to make the push plate 41 and the push plate 45 move down, 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, so as to realize the concrete and the formwork 2 separate.

With reference to Fig. 1 and Fig. 4, support mechanism 6 comprises support frame 61, stay cord 62 and winding assembly 7, and support frame 61 is fixedly installed on the upper surface of roof 17, and roof roof 17 is provided with support frame 61. The force component assembly 9 supporting the force component, the force component assembly 9 includes a force component 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 component frame 91 is fixedly installed on the upper surface of the roof 17, and the component frame 91 is located on the side of the support frame 61 away from the formwork 2, and the shape and size of the component frame 91 are the same as the support frame 61, while the component frame 91 and the support frame 61 are all fixedly connected together by a plurality of channel steels through screw rods and nuts, and the bottom of the force component frame 91 and the support frame 61 is also fixedly connected with the roof 17 by screw rods; Installed on the side wall of the support frame 61, and the second force component cable 93 is fixedly installed on the side wall of the force component frame 91, while the other ends of the first force component cable 92 and the second force component cable 93 are connected to the roof floor. The top 17 is fixedly connected, and the angle between the top of the first force component cable 92 and the second component force cable 93 and the component frame 91 is greater than or equal to 45 degrees; the third component force cable 94 and the fourth component force cable Both ends of 95 are fixedly installed on the side wall on the opposite side of the support frame 61 and the force component frame 91, and the third component force cable 94 and the fourth component force cable 95 are cross-fitted to form an "X" shape, In this way, the force component of the pulling force on the support frame 61 is realized.

Referring to Fig. 1 , the side walls at both ends of the main frame 21 in the length direction are fixed with a first hanging rod 63 and a second hanging rod 64, and the first hanging rod 63 is located on the side away from the second hanging rod 64 away from the support frame 61, and The first hanging rod 63 and the second hanging rod 64 tops all vertically extend to the top of the formwork panel 22 and the roof 17 and are fixedly equipped with a suspension ring 65; One corresponding setting, the stay rope 62 is installed on the support frame 61 and both ends are fixedly equipped with a hook 66, and the two hooks 66 are respectively hooked on the suspension ring 65 located at the first hanging rod 63 and the second hanging rod 64, so The two pull cords 62 located at both ends of the main frame 21 jointly position the main frame 21 and the template plate 22 .

Referring to Fig. 1 and Fig. 5, on the side wall of the support frame 61 close to the side of the main frame 21, two fixed seats 14 are fixedly installed at intervals along the length direction of the main frame 21, and the winding assembly 7 is arranged on the two fixed seats 14 and used For rewinding or releasing the pull cord 62, the rewinding assembly 7 includes a rewinding roller 71, a locking disc 72, a locking rod 73 and a locking screw 74; And the axis of the rotating rod 15 is parallel to the length direction of the main frame 21; there are two winding rollers 71 corresponding to the two stay cords 62, and the two winding rollers 71 are coaxially fixed on the rotating rod 15, and The two pull cords 62 are respectively wound on the two take-up rollers 71 , so the take-up rollers 71 rotate and release the stay rope 62 or wind up the stay rope 62 at the same time, so that both ends of the stay rope 62 move simultaneously.

Referring to Fig. 1 and Fig. 5, one end of the rotating rod 15 passes outside the fixed seat 14, and the fixed seat 14 is also provided with a rotating assembly 8 that drives the winding roller 71 to rotate. The rotating assembly 8 includes a pinion gear 81 and a main gear 82, and the pinion gear 81 keys are connected to the end of the rotating rod 15 passing out of the fixed seat 14, and the main gear 82 is rotatably mounted on the side wall of the fixed seat 14, and the main gear 82 meshes with the auxiliary gear 81, and the number of teeth of the main gear 82 is greater than that of the auxiliary gear 81 Teeth number, and the rocking bar 83 that is convenient to rotate main gear 82 is fixedly installed on main gear 82.

Referring to Fig. 5 and Fig. 6, the locking disc 72 is coaxially and fixedly installed on one end of the rotating rod 15 passing through the fixing seat 14, the locking disc 72 is located between the pinion gear 81 and the fixing seat 14, and the locking disc 72 is wound around the winding roller A plurality of locking grooves 75 are provided in the circumferential array of the 71 axis, and the locking grooves 75 are in the shape of a semicircle arc, and rounded corners are also provided at the openings of the locking grooves 75; The first mounting plate 76 and the second mounting plate 77 are installed, and the first mounting plate 76 is located below the second mounting plate 77; the locking rod 73 vertically slides through the first mounting plate 76, and the top end of the locking rod 73 A circular accommodating groove 78 is opened thereon.

1 and 5, the lower surface of the second mounting plate 77 is fixedly installed with the connecting spring 12 fixedly connected to the top end of the locking rod 73, and the bottom end of the locking rod 73 is clamped and installed on the locking groove 75 under the action of the connecting spring 12 ; The locking screw 74 vertically passes through the upper surface of the second mounting plate 77, and the locking screw 74 is threadedly connected with the second mounting plate 77, while the locking screw 74 passes through the connecting spring 12 and extends into the receiving groove 78 and presses against the receiving groove On the bottom of 78 grooves; on the locking screw rod 74 in the accommodation groove 78, an annular annular groove is coaxially provided with, and the locking rod 73 is threadedly connected with an anti-off screw rod 13 extending into the annular groove, and the anti-off screw rod 13 is used to block the locking Screw rod 74 disengages from locking rod 73, while locking screw rod 74 can rotate relative to locking rod 73 due to the annular groove, and locking screw rod 74 is used to stop locking rod 73 from disengaging from locking groove 75, and twist the anti-off screw rod 13 and annular groove simultaneously After disengaging, the locking screw 74 can be separated from the locking rod 73 .

Referring to Fig. 1, Fig. 5 and Fig. 6, when it is necessary to automatically rotate the take-up roller 71, turn the lock screw 74 to drive the lock lever 73 to disengage from the lock groove 75, so the take-up roller 71 can rotate freely, and the turn of the take-up roller 71 drives The stay cord 62 is rewound and pulls the template 2 to move upwards. When the template 2 is about to reach the predetermined position, the anti-loosening screw 13 is turned to disengage from the annular groove, so the locking rod 73 is clamped and installed on the locking groove 75 under the action of the connecting spring 12. Then continue to rotate the winding roller 71 to move up the template 2, and the rotation of the winding roller 71 can make the locking lever 73 break away from the locking groove 75, so as to realize the rotation of the winding roller 71, so that the winding roller 71 is locked by the locking lever after the rotation of the winding roller 71 is completed. 73 locking, thereby reducing the probability of winding roll 71 rotation, then fix the template 2, then continue to wind the stay cord 62 so that the stay cord 62 is tensioned, then turn the locking screw 74 to press against the bottom of the accommodation groove 78, and finally Turn the anti-off screw rod 13 to extend into the annular groove, so as to realize the positioning of the stay cord 62 and the template 2 .

Referring to Fig. 1, Fig. 2 and Fig. 6, when the formwork 2 needs to be removed, turn the locking screw 74 to drive the locking rod 73 to disengage from the locking groove 75, then turn the fixing nut 33 away from the cantilever beam 1, and then tap the fixing screw 31 so that The second positioning ring 36 is disengaged from the mounting hole 23, and then the pushing mechanism 4 is started to push the template plate 22 to disengage from the concrete, and then the anti-loosening screw 13 is turned to disengage from the annular groove, and the locking rod 73 is clamped and installed on the locking groove 75 for positioning , and then the fixing screw 31 and the fixing nut 33 can be taken off, and then the hook 66 on the pull rope 62 can be taken off, so as to realize the disassembly of the template 2 .

The working principle of the embodiment of the present application is:

Hook the hooks 66 at both ends of the stay rope 62 to the two suspension rings 65 located at the same end of the main frame 21, and at the same time hook the hooks 66 at the two ends of the other stay rope 62 to the other two suspension rings 65, and rotate the main gear 82 to drive the winding The rotation of the roller 71 drives 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 to move up, and then the fixing screw 31 is passed through. Through the mounting hole 23 and the fixing hole 11, the second positioning ring 36 is clamped and installed on the mounting hole 23, and then the fixing nut 33 is screwed to the fixing screw rod 31, so that the fixing nut 33 is pressed against the cantilever beam 1, The first positioning ring 35 presses against the main frame 21 for positioning, and then continues to rotate the main gear 82 to make the stay rope 62 tense, and the locking rod 73 is clamped and installed on the locking groove 75 for positioning, and then the locking screw 74 is turned to resist. It is used to locate the locking rod 73 on the bottom of the receiving groove 78, and then concrete is poured on the formwork plate 22.

After the strength of the concrete structure is reached, turn the locking screw rod 74 to drive the locking rod 73 to disengage from the locking groove 75, so the winding roller 71 can rotate freely, turn the fixing nut 33 away from the cantilever beam 1, and then knock the fixing screw rod 31 to make the second Locating ring 36 breaks away from mounting hole 23, and then twisting push plate 53 drives push plate 41 and a plurality of push plates 45 to move up, and a plurality of push plates 45 pushes concrete simultaneously, makes template body plate 22 move down and separates with concrete, and The fixing screw 31 is used to block and position the template 2, and then turn the anti-loosening screw 13 to disengage from the buffer groove, and the locking rod 73 is clamped and installed on the locking disc 72 under the action of the connecting spring 12 to position the stay rope 62, and then That is, the fixing screw 31 and the fixing nut 33 can be disassembled, and the stay rope 62 positions the formwork 2, and finally the hook 66 can be removed from the suspension ring 65 to complete the disassembly of the formwork 2, thereby realizing the construction of large overhanging eaves on the roof. Improve construction efficiency and construction quality.

All of the above are preferred embodiments of the application, and are not intended to limit the protection scope of the application. Therefore, all equivalent changes made according to the structure, shape, and principle of the application should be covered by the protection scope of the application. Inside.

Claims (10)

1. A roof formwork structure with large overhanging eaves, characterized in that it includes a formwork (2) set on the cantilever beam (1) through a fixing component (3), set on the roof (17) and A support mechanism (6) for supporting the template (2), the template (2) is also provided with a push mechanism (4) that drives the template (2) to separate from the concrete, and the support mechanism (6) includes: A support frame (61), the support frame (61) is arranged on the roof (17); A stay rope (62), the stay rope (62) is arranged on the formwork (2) and connected with the support frame (61) and used to support the formwork (2); The winding assembly (7), the winding assembly (7) is arranged on the support frame (61) and is used for winding or releasing the pull rope (62). 2. A formwork support structure for large overhanging eaves on roofs and roofs according to claim 1, characterized in that: the formwork (2) is provided with installation holes (23), and the fixing component (3) includes: A fixing screw (31), the fixing screw (31) passes through the installation hole (23) and the cantilever beam (1) and has a diameter smaller than that of the installation hole (23); The fixed boss (32), the fixed boss (32) is arranged on the fixed screw rod (31) and has an inclined circular truncated shape and presses against the mounting hole (23) for positioning; A fixing nut (33), the fixing nut (33) is threadedly connected to the fixing screw rod (31) and pressed against the cantilever beam (1) for positioning. 3. A formwork support structure for large roof eaves according to claim 2, characterized in that: the fixed boss (32) is threadedly connected to the fixed screw rod (31) through a threaded hole and pressed against the fixed Positioning on the head of the screw (31); the fixed boss (32) is provided with a first positioning ring (35) pressed against the side wall of the formwork (2) and a snap-fit mounting ring (35) mounted on the mounting hole (23). Second positioning ring (36). 4. A formwork support structure for roof overhanging eaves according to claim 1, characterized in that: the pushing mechanism (4) includes: a push plate (41), the push plate (41) is slidably arranged on the template (2); A plurality of push rods (42), the plurality of push rods (42) are arranged on the push plate (41) and slide through the formwork (2) to push the formwork (2) away from the concrete; A push assembly (5), the push assembly (5) is arranged on the template (2) and is used to drive the push plate (41) to move. 5. A formwork support structure for roof overhanging eaves according to claim 4, characterized in that: the push assembly (5) includes: Pushing the nut (51), the pushing nut (51) is arranged on the push plate (41); Pushing the screw (52), the pushing screw (52) is rotatably arranged on the template (2) and threadedly connected with the pushing nut (51); Push plate (53), the push plate (53) is set 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) Positioning is carried out by pressing on the push plate (53), and a movable space (16) for the movement of the push plate (41) is formed between the push plate (53) and the template (2). 6. A formwork support structure for roof overhanging eaves according to claim 4, characterized in that: the top of the push rod (42) is provided with a push plate (45) for pushing concrete, and the push plate ( 45) The diameter is larger than the diameter of the push rod (42) and is slipped on the push plate (41), and the outer wall of the push plate (45) is also provided with an anti-wear layer. 7. The roof formwork support structure with large overhanging eaves according to claim 1, characterized in that: the rolling assembly (7) includes: Rewinding roller (71), the rewinding roller (71) is rotatably arranged on the support frame (61) and is used for rewinding the drawstring (62), and the two ends of the drawstring (62) are respectively connected with the template (2) The two sides close to or far from the cantilever beam (1) are detachably connected; the support frame (61) is also provided with a rotating assembly (8) that drives the winding roller (71) to rotate; A locking disc (72), the locking disc (72) is arranged on the winding roller (71) and is provided with a plurality of locking grooves (75) in a circumferential array around the axis of the winding roller (71); A locking lever (73), the locking lever (73) is slidably disposed on the support frame (61) and clamped and installed on the locking groove (75) for positioning; A locking screw (74), the locking screw (74) is threadedly connected to the support frame (61) and is rotatably connected to the locking rod (73) so that the locking rod (73) presses against the locking groove (75) for positioning. 8. A formwork support structure for large roof overhanging eaves according to claim 7, characterized in that: the support frame (61) is provided with a connecting spring (12) connected to the locking rod (73), so that There is a receiving groove (78) on the locking rod (73), the locking screw rod (74) extends into the receiving groove (78) and is provided with an annular groove, and the locking rod (73) is threaded with an extension to the anti-loosening screw (13) in the annular groove. 9. A formwork support structure for large overhanging eaves on roofs and roofs according to claim 7, characterized in that: the formwork (2) is provided with two suspension rings (65), and the two ends of the stay rope (62) A hook (66) hooked to the suspension ring (65) is provided on the top, and a force component (9) for supporting the support frame (61) is provided on the roof (17). 10. A formwork support structure for large roof overhanging eaves according to claim 7, characterized in that: the rotating assembly (8) includes: A pinion gear (81), the pinion gear (81) is arranged on the winding roller (71); The main gear (82), the main gear (82) is rotatably arranged on the support frame (61) and meshes with the auxiliary gear (81), the number of teeth of the main gear (82) is greater than the number of teeth of the auxiliary gear (81).

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