CN113353832A - Steel template hoist device of wallboard is pour to prefabricated construction now - Google Patents

Abstract

The invention belongs to the field of hoisting of steel concrete pouring templates, and particularly relates to a steel template hoisting device for an assembled building cast-in-place wallboard, which comprises a steel wire rope, a base, universal wheels, supporting rods, hook plates, an electric drive module A, a movable pulley A, winding wheels, an electric drive module B and the like, wherein the base provided with the four universal wheels is hinged with the supporting rods, and the supporting rods are in sliding fit with the hook plates supported by a steel bar frame in a cast-in-place wall body along the length direction of the supporting rods; in the process of vertically installing the steel formwork, the steel formwork is vertically installed by fully utilizing the existing reinforcing steel frame as a support, and equipment cost is reduced without additionally adding equipment. Meanwhile, the tower crane can be withdrawn after the steel template is lifted and placed on a construction floor by the tower crane, the whole erection installation process of the steel template is free from the participation of the tower crane, the use of the tower crane in other operations is not influenced, and the utilization rate of the tower crane is greatly improved.

Description

Steel template hoist device of wallboard is pour to prefabricated construction now

Technical Field

The invention belongs to the field of hoisting of steel concrete pouring templates, and particularly relates to a steel template hoisting device for an assembled building cast-in-place wallboard.

Background

Cast-in-place is to assemble steel templates on site and then pour concrete. Compared with prefabricated assembled walls, the integrated building wall can be realized by pouring concrete in situ, so that the strength of the building wall is higher, the building wall is not easy to damage in an earthquake environment, and the safety is higher.

At present, a steel template for a cast-in-place wall body needs to be hoisted to an appointed floor through a tower crane before the wall body is poured, and is positioned and installed under the cooperation of the tower crane. After the steel template is positioned and installed, the lifting rope on the steel template can be released, and the next steel template is hoisted.

In the steel template positioning and installing process, in order to ensure the installation safety of the steel template, the tower crane is required to be lifted to the steel template, and the tower crane cannot be used for other lifting operations, so that the utilization efficiency of the tower crane is low.

The invention designs a steel template hoisting device for an assembly type building cast-in-place wallboard to assist a tower crane to work and improve the utilization rate of the tower crane.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention discloses a steel template hoisting device for an assembly type cast-in-place wallboard of a building, which is realized by adopting the following technical scheme.

In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention conventionally use, which are merely for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, or be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

A steel template hoisting device for an assembled building cast-in-place wallboard comprises a steel wire rope, a base, universal wheels, supporting rods, hook plates, an electric drive module A, a movable pulley B, a fixed pulley A, a movable pulley C, a fixed pulley B, winding wheels and an electric drive module B, wherein the base provided with the four universal wheels is hinged with the supporting rods, and the hook plates supported by a steel bar frame in a cast-in-place wall body are matched on the supporting rods in a sliding mode along the length direction of the supporting rods; the top end of the hook plate is provided with a fixed pulley A; a winding wheel driven by the electric drive module B is installed on the base, and one end of a steel wire rope wound on the winding wheel vertically winds the fixed pulley B and then is matched with a hanging ring at the top end of the steel template through the movable pulley C, the movable pulley B, the movable pulley A and the fixed pulley A in sequence; the movable pulley C, the movable pulley B and the movable pulley A vertically move in the same direction and are driven by the electric drive module A, and the vertical movement speed of the movable pulley A and the vertical movement speed of the movable pulley B are twice as fast as that of the movable pulley C.

The top end of the hook plate and the shaft of the fixed pulley A are provided with a structure which marks two parts of steel wire ropes at two sides of the fixed pulley A and has symmetrical and equal inclination angles.

As a further improvement of the technology, the side wall of the hook plate is provided with a sliding sleeve A which is in sliding fit with the supporting rod; a support A is arranged on the side wall of the sliding sleeve A, and a manual pull rod is hinged on the support A; the fixed pulley A is arranged at the top end of the hook plate through the U seat C so as to increase the height of the fixed pulley A; the base is provided with a U seat E, and the winding wheel is arranged in the U seat E; and a shaft on which the winding wheel is positioned is in rotating fit with the U seat E, and the shaft on which the winding wheel is positioned is in transmission connection with an output shaft of the electric drive module B through a coupler.

As a further improvement of the technology, the base is provided with two vertical guide sleeves, and a slide rod vertically slides in each guide sleeve; the top ends of the two sliding rods are fixedly connected through a lifting platform; the movable pulley A for supporting the steel wire rope is arranged on the lifting platform through the U seat A, and the movable pulley B for supporting the steel wire rope is arranged on the lifting platform through the U seat B; two fixing sleeves which are arranged between the two guide sleeves and are vertically distributed at intervals are rotationally matched with vertical screw rods; the screw rod is in threaded fit with the lifting platform; the bevel gear A mounted on the output shaft of the electric drive module A is meshed with the bevel gear B mounted on the screw rod.

As a further improvement of the technology, the base is provided with a guide seat, and a U-shaped sliding seat vertically slides in the guide seat; the movable pulley C is arranged in the sliding seat; a U seat D is installed on the guide sleeve, a fixed shaft is installed in the U seat D, a shaft sleeve is rotatably matched on the fixed shaft, and a straight gear A and a straight gear B are coaxially installed on the shaft sleeve; the straight gear A is meshed with a vertical rack A arranged on the lifting platform, and the straight gear B is meshed with a vertical rack B arranged on the sliding seat.

As a further improvement of the technology, the sliding seat is symmetrically provided with two guide blocks, and the two guide blocks respectively slide in two guide grooves on the inner sides of the two guide seats. The cooperation of guide way and guide block plays the positioning guide effect to the slip of slide in the guide holder. The fixed pulley B is arranged on the guide seat through two support seats B. The reference circle diameter ratio of the straight gear A to the straight gear B is 2:1, and the moving speed of the movable pulley C is guaranteed to be one half of that of the movable pulley A and that of the movable pulley B.

As a further improvement of the technology, sliding sleeves B are nested and slid on the steel wire ropes on two sides of the fixed pulley A, and each sliding sleeve B is in rotating fit with a shaft of the fixed pulley A through two symmetrical swinging plates; each sliding sleeve B is provided with a V-shaped plate, and a round pin which forms hinged connection with the two V-shaped plates slides in sliding grooves on the two V-shaped plates; and a scale for marking the position of the round pin is arranged at the top end of the hook plate, and the round pin is positioned in the scale range to indicate that the inclination angles of the steel wire ropes at the two sides of the fixed pulley A are equal.

Compared with the traditional hoisting mode of the steel template, the hoisting device realizes the vertical installation of the steel template by driving the winding wheel to wind the steel wire rope through the electric drive module B in the process of vertically installing the steel template. In the process of erecting the steel formwork, the inclination angles of the steel wire ropes on the two sides of the fixed pulley A can be changed continuously, so that in order to avoid the situation that the two sides of a reinforcing steel bar frame in a cast-in-place wall body are deformed or inclined due to unbalanced stress caused by the change of the acting force of the steel wire ropes on the two sides of the fixed pulley A due to the acting direction, the relative positions of the round pin and the scale are paid attention to all the time in the process of erecting and installing the steel formwork. If the round pin is about to move out of the range of the scale, then control the operation of electricity driving module A and drive movable pulley A at once, movable pulley B and the vertical motion of movable pulley C, movable pulley A's motion makes the wire rope angle of inclination of movable pulley A side on the fixed pulley A adjust, guarantee that fixed pulley A both sides wire rope is keeping piling up the equal all the time to the steel template in-process of erectting, guarantee the reinforcing bar frame both sides atress is balanced and only produce vertical ascending holding power to colluding the board indirectly, prevent effectively that the reinforcing bar frame from taking place deformation or slope because of the unbalance of both sides effort. The movement of the movable pulley C can tighten or release the slack or tension of the steel wire rope caused by the change of the inclination angle.

In the process of vertically installing the steel formwork, the steel formwork is vertically installed by fully utilizing the existing reinforcing steel frame as a support, and equipment cost is reduced without additionally adding equipment. Meanwhile, the tower crane can be withdrawn after the steel template is lifted and placed on a construction floor by the tower crane, the whole erection installation process of the steel template is free from the participation of the tower crane, the use of the tower crane in other operations is not influenced, and the utilization rate of the tower crane is greatly improved. The invention has simple structure and better use effect.

Drawings

Fig. 1 is a schematic view of the invention in conjunction with wall embedded steel bar frames and steel formworks.

Fig. 2 is a schematic cross-sectional view of the invention in conjunction with wall embedded steel bar frames and steel formworks.

Fig. 3 is a partial cross-sectional view of the invention in conjunction with wall embedded steel bar frames.

Fig. 4 is a schematic cross-sectional view of the fixed sleeve, screw, U-seat D, spur gear B, rack B, slide, movable pulley C, fixed pulley B, and wire rope.

Fig. 5 is a cross-sectional schematic view of the screw, the bevel gear B, the bevel gear A and the electric drive module A.

Fig. 6 is a schematic view of the present invention from two perspectives.

FIG. 7 is a schematic cross-sectional view of the guide sleeve, the slide rod, the lifting platform, the screw and the fixing sleeve.

Fig. 8 is a schematic cross-sectional view of the rack a, the spur gear a, the shaft sleeve, the fixed shaft, the spur gear B, and the rack B.

Fig. 9 is a schematic cross-sectional view of the guide seat, the slide seat and the movable pulley C.

Fig. 10 is a cross-sectional view of the winding wheel, the clevis E, the coupling and the electric drive module B.

Fig. 11 is a schematic cross-sectional view of the U-shaped seat C, the fixed pulley a, the swing plate and the sliding sleeve B in cooperation and two viewing angles.

Number designation in the figures: 1. a reinforcing steel bar frame; 2. a steel template; 3. a hoisting ring; 4. a wire rope; 5. a base; 6. a universal wheel; 7. a support bar; 8. hooking the plate; 9. a sliding sleeve A; 10. a support A; 11. a pull rod; 12. a guide sleeve; 13. a slide bar; 14. a lifting platform; 15. fixing a sleeve; 16. a screw; 17. a bevel gear B; 18. a bevel gear A; 19. an electric drive module A; 20. a U seat A; 21. a movable pulley A; 22. a U seat B; 23. a movable pulley B; 24. a U seat C; 25. a fixed pulley A; 26. a rack A; 27. a straight gear A; 28. a shaft sleeve; 29. a U seat D; 30. a spur gear B; 31. a rack B; 32. a slide base; 33. a movable pulley C; 34. a guide block; 35. a guide seat; 36. a guide groove; 37. a support B; 38. a fixed pulley B; 39. a winding wheel; 40. a U seat E; 41. a coupling; 42. an electric drive module B; 43. a scale; 44. a sliding sleeve B; 45. a swinging plate; 46. a V plate; 47. a chute; 48. a round pin; 49. and fixing the shaft.

Detailed Description

The drawings are schematic illustrations of the implementation of the present invention to facilitate understanding of the principles of structural operation. The specific product structure and the proportional size are determined according to the use environment and the conventional technology.

As shown in fig. 6, it includes wire rope 4, base 5, universal wheel 6, bracing piece 7, hook plate 8, electric drive module a19, movable pulley a21, movable pulley B23, fixed pulley a25, movable pulley C33, fixed pulley B38, winding wheel 39, electric drive module B42, wherein as shown in fig. 1, 2, 4, there is bracing piece 7 hinged on base 5 which is equipped with four universal wheels 6, hook plate 8 which is supported by cast-in-place wall inner reinforcement frame 1 is matched on bracing piece 7 along its length direction in a sliding manner; as shown in fig. 1, 2 and 3, a fixed pulley a25 is arranged at the top end of the hook plate 8; as shown in fig. 2, 5 and 10, a winding wheel 39 driven by an electric drive module B42 is installed on the base 5, and one end of a steel wire rope 4 wound on the winding wheel 39 vertically passes through a fixed pulley B38 and then is matched with a lifting ring 3 at the top end of the steel formwork 2 through a movable pulley C33, a movable pulley B23, a movable pulley a21 and a fixed pulley a25 in sequence; as shown in fig. 2, 6 and 8, the movable pulley C33, the movable pulley B23 and the movable pulley a21 vertically move in the same direction and are driven by the electric drive module a19, and the vertical movement speed of the movable pulley a21 and the movable pulley B23 is twice as fast as that of the movable pulley C33.

As shown in fig. 3, 6 and 11, the top end of the hook plate 8 and the axis of the fixed pulley a25 are provided with a structure indicating that the two parts of the wire rope 4 at the two sides of the fixed pulley a25 have the same inclination angle.

As shown in fig. 4, a sliding sleeve a9 slidably engaged with the supporting rod 7 is mounted on the side wall of the hook plate 8; a support A10 is arranged on the side wall of the sliding sleeve A9, and a manual pull rod 11 is hinged on the support A10; as shown in fig. 3, the fixed pulley a25 is mounted on the top end of the hook plate 8 through a U seat C24 to increase the height of the fixed pulley a 25; as shown in fig. 6 and 10, a U seat E40 is mounted on the base 5, and the winding wheel 39 is mounted in the U seat E40; the winding wheel 39 is in rotating fit with the U-shaped seat E40, and the winding wheel 39 is in driving connection with the output shaft of the electric drive module B42 through the coupler 41.

As shown in fig. 4, 6 and 7, two vertical guide sleeves 12 are mounted on the base 5, and a sliding rod 13 vertically slides in each guide sleeve 12; the top ends of the two sliding rods 13 are fixedly connected through a lifting platform 14; as shown in fig. 3 and 7, a movable sheave a21 supporting the wire rope 4 is mounted on the platform 14 via a U-seat a20, and a movable sheave B23 supporting the wire rope 4 is mounted on the platform 14 via a U-seat B22; two fixed sleeves 15 which are arranged between the two guide sleeves 12 and are vertically distributed at intervals are rotatably matched with vertical screw rods 16; the screw 16 is in threaded fit with the lifting platform 14; as shown in fig. 5, the bevel gear a18 mounted on the output shaft of the electric drive module a19 meshes with the bevel gear B17 mounted on the screw 16.

As shown in fig. 4, 5 and 9, the base 5 is provided with a guide seat 35, and a U-shaped sliding seat 32 is vertically slid in the guide seat 35; the movable pulley C33 is arranged in the sliding seat 32; as shown in fig. 8, a U-shaped seat D29 is mounted on the guide sleeve 12, a fixed shaft 49 is mounted in the U-shaped seat D29, a shaft sleeve 28 is rotatably fitted on the fixed shaft 49, and a spur gear a27 and a spur gear B30 are coaxially mounted on the shaft sleeve 28; spur gear a27 is engaged with vertical rack a26 mounted on the lift table 14 and spur gear B30 is engaged with vertical rack B31 mounted on the slide carriage 32.

As shown in fig. 9, two guide blocks 34 are symmetrically mounted on the slide base 32, and the two guide blocks 34 respectively slide in two guide grooves 36 inside the two guide seats 35. The engagement of the guide groove 36 with the guide block 34 plays a positioning and guiding role in the sliding of the slide 32 in the guide seat 35. As shown in fig. 2 and 4, the fixed pulley B38 is mounted on the guide 35 via two brackets B37. As shown in fig. 8, the ratio of the pitch circle diameter of spur gear a27 to spur gear B30 is 2:1, ensuring that the speed of movement of movable pulley C33 is one-half of that of movable pulley a21 and movable pulley B23.

As shown in fig. 3 and 11, sliding sleeves B44 are respectively nested and slid on the steel wire ropes 4 at two sides of the fixed pulley a25, and each sliding sleeve B44 is rotatably matched with an axis of the fixed pulley a25 through two symmetrical swinging plates 45; each sliding sleeve B44 is provided with a V-shaped plate 46, and a round pin 48 which forms a hinged connection for the two V-shaped plates 46 slides in a sliding groove 47 on the two V-shaped plates 46; the top end of the hook plate 8 is provided with a scale 43 for indicating the position of the round pin 48, and the round pin 48 is positioned in the range of the scale 43, which indicates that the inclination angles of the steel cables 4 on the two sides of the fixed pulley A25 are equal.

The electric drive module a19 and the electric drive module B42 of the present invention are prior art and both consist of an electric motor, a speed reducer and a control unit.

The working process of the invention is as follows: in the initial state, the hook plate 8 falls to the extreme position on the support bar 7. The top end of the hook plate 8 is lower than the height of the reinforcing steel bar frame 1.

Firstly, hoisting a steel template 2 by a tower crane and horizontally placing the steel template on one side of a cast-in-situ wall body reinforcing steel bar frame 1 on a construction floor.

When the steel formwork 2 is vertically installed by using the invention, the electric drive module B42 is started to drive the winding wheel 39 to release the steel wire rope 4 with enough length and make the free end of the steel wire rope 4 pass through the steel formwork 2 side of the steel frame 1, then the invention is moved to the other side of the steel frame 1, the pull rod 11 is manually pushed upwards, and the pull rod 11 drives the hook plate 8 to vertically move upwards through the support A10 and the sliding sleeve A9. When the hook part of the upper end of the hook plate 8 is higher than the top end of the steel bar frame 1, the base 5 is continuously close to the steel bar frame 1.

As the present invention continues to approach the steel bar frame 1, when the upper end hook part of the hook plate 8 passes over the top end of the steel bar frame 1, the acting force on the pull rod 11 is removed, the hook plate 8 drops instantaneously relative to the support rod 7 under the action of the self-weight and is supported by the support rod 7, at this time, the four universal wheels 6 on the base 5 are locked to fix the position of the base 5 of the present invention, the free end of the steel wire rope 4 is connected with the hanging ring 3 at the far end of the steel formwork 2, and the steel wire rope 4 is in a loose state.

The control system controls the electric driving module B42 to operate, the electric driving module B42 drives the winding wheel 39 to rotate, the winding wheel 39 winds the steel wire rope 4 connected with the hanging ring 3 on the steel formwork 2, the steel wire rope 4 is gradually straightened, and the steel formwork 2 is swung upwards and erected around the contact point of the steel formwork and the side wall of the steel bar frame 1.

When the steel cable 4 is just stretched and the steel formwork 2 is still in a horizontal state, the inclination angles of the two portions of the steel cable 4 on the two sides of the fixed pulley a25 may not be equal. If the inclination angle of the steel wire rope 4 at the side of the movable pulley A21 of the fixed pulley A25 is smaller than that of the steel wire rope 4 at the side of the steel template 2 of the fixed pulley A25, the inclination angles of the swing plates 45 on the two sliding sleeves B44 are unequal, the inclination angle of the swing plate 45 corresponding to the sliding sleeve B44 close to the steel template 2 is larger than the inclination angle of the swing plate 45 corresponding to the sliding sleeve B44 close to the movable pulley A21, and the round pin 48 is deflected towards the side close to the steel template 2 under the action of the two V plates 46 and is not in the range of the scale 43. At the moment, the electric driving module A19 is controlled to operate through visual inspection and a control system, the electric driving module A19 drives the lifting platform 14 to vertically and rapidly move downwards through the bevel gear A18, the bevel gear B17 and the screw 16, the lifting platform 14 drives the movable pulley A21 and the movable pulley B23 to synchronously vertically and rapidly move downwards, and the two sliding rods 13 respectively correspond to the retraction motion in the guide sleeve 12. The inclination angle of the steel wire rope 4 on the side of the movable pulley A21 of the fixed pulley A25 is rapidly increased and is equal to the inclination angle of the steel wire rope 4 on the side of the steel formwork 2 of the fixed pulley A25, so that the stress on the two sides of the fixed pulley A25 is balanced, the stress on the two sides of the pressure block is balanced, the tension generated by the two sides of the steel bar frame 1 due to the pulling of the steel wire ropes 4 is indirectly balanced, the steel bar frame 1 cannot be deformed or inclined due to the unbalanced stress on the two sides, and the steel bar frame 1 is protected from being damaged.

When the movable pulley a21 vertically moves downwards, the part of the steel wire rope 4 between the fixed pulley a25 and the winding wheel 39 tends to be loosened, so that the lifting platform 14 drives the sliding base 32 to vertically move downwards in the two guide bases 35 through the rack a26, the spur gear a27, the shaft sleeve 28, the spur gear B30 and the rack B31, and the sliding base 32 drives the movable pulley C33 to rapidly tighten the steel wire rope 4, so as to always keep the steel wire rope 4 in a straightening and effective pulling state for the steel formwork 2.

When the steel cable 4 is just stretched and the steel formwork 2 is still in a horizontal state, if the inclination angle of the steel cable 4 on the side of the movable pulley a21 of the fixed pulley a25 is larger than the inclination angle of the steel cable 4 on the side of the steel formwork 2 of the fixed pulley a25, the inclination angles of the swing plates 45 on the two sliding sleeves B44 are also unequal, the inclination angle of the swing plate 45 corresponding to the sliding sleeve B44 close to the steel formwork 2 is smaller than the inclination angle of the swing plate 45 corresponding to the sliding sleeve B44 close to the movable pulley a21, and the round pin 48 is deflected towards the side close to the movable pulley a21 under the action of the two V plates 46 and is not within the range of the ruler 43. At this time, through visual inspection and control of the control system, the electric driving module a19 runs in reverse, the electric driving module a19 drives the lifting platform 14 to move vertically and upwardly rapidly through the bevel gear a18, the bevel gear B17 and the screw 16, the lifting platform 14 drives the movable pulley a21 and the movable pulley B23 to synchronously move vertically and upwardly rapidly, and the two sliding rods 13 respectively move vertically and upwardly outside the corresponding guide sleeves 12. The inclination angle of the steel wire rope 4 on the side of the movable pulley A21 of the fixed pulley A25 is rapidly reduced and is equal to the inclination angle of the steel wire rope 4 on the side of the steel formwork 2 of the fixed pulley A25, so that the stress on the two sides of the fixed pulley A25 is balanced, the stress on the two sides of the pressure block is balanced, the tension generated by the two sides of the steel bar frame 1 due to the pulling of the steel wire ropes 4 is indirectly balanced, the steel bar frame 1 cannot be deformed or inclined due to the unbalanced stress on the two sides, and the steel bar frame 1 is protected from being damaged.

When the movable pulley a21 moves vertically upwards, the part of the steel wire rope 4 between the fixed pulley a25 and the winding wheel 39 is stressed, so that the steel wire rope 4 does not obstruct the vertical upwards movement of the movable pulley a21, the lifting platform 14 drives the sliding seat 32 to move vertically upwards in the two guide seats 35 through the rack a26, the spur gear a27, the shaft sleeve 28, the spur gear B30 and the rack B31, and the sliding seat 32 drives the movable pulley C33 to rapidly discharge and supplement the steel wire rope 4.

With the continuous pulling of the steel formwork 2 by the steel wire rope 4 continuously wound by the winding wheel 39 being vertical, in the process that the steel formwork 2 is pulled by the steel wire rope 4 to swing from the horizontal state to the vertical state, the inclination angle of the steel formwork 2 side of the fixed pulley A25 is gradually changed, so that the stress on two sides of the fixed pulley A25 is unbalanced, the inclination angles of the swing plates 45 on the two sliding sleeves B44 are unequal, and the round pin 48 is deviated to the sliding sleeve B44 side with the larger inclination angle under the action of the two V plates 46 and is not in the range of the ruler 43. At the moment, the electric drive module A19 is controlled to operate through a control system through visual inspection, the electric drive module A19 drives the movable pulley A21 and the movable pulley B23 to rapidly adjust the inclination angle of the steel wire rope 4 on the corresponding side of the fixed pulley A25 through a series of transmission, and the stress on the two sides of the fixed pulley A25 is rapidly balanced.

Meanwhile, the lifting platform 14 drives the fixed pulley C through a series of transmission to tighten the slack of the wire rope 4 caused by the vertical downward movement of the movable pulley a21 of the wire rope 4 or to release and supplement the tension of the wire rope 4 caused by the vertical upward movement of the movable pulley a21 of the wire rope 4.

Because the moving speed of the movable pulley A21 and the movable pulley B23 is twice the moving speed of the movable pulley C33, the releasing length or the tensioning length of the movable pulley C33 to the steel wire rope 4 during moving is equal to the tensioning length or the releasing length of the movable pulley A21 and the movable pulley B23 to the steel wire rope 4 during moving, so that the steel wire rope 4 is ensured not to block the movement of the movable pulley A21 and the movable pulley B23 or the steel wire rope 4 is ensured to be always in a tensioned state, and the winding wheel 39 is ensured to effectively pull the steel template 2 by winding the steel wire rope 4.

In the process that the steel formwork 2 is pulled by the steel wire rope 4 to be vertical, the movable pulley A21, the movable pulley B23 and the movable pulley C33 cooperatively move to ensure that the stress on the two sides of the fixed pulley A25 is always kept balanced, so that the stress on the two sides of the steel bar frame 1 is always kept balanced in the installation process of the steel formwork 2, and the steel formwork 2 cannot be deformed or inclined due to unbalance of the stress on the two sides.

When the steel formwork 2 is pulled by the steel wire rope 4 to finish the erection, the control system controls the electric drive module A19 and the electric drive module B42 to stop running. And then, fixedly installing the vertical steel formwork 2, and detaching the steel wire rope 4 from the hanging ring 3 of the steel formwork 2 after the steel formwork 2 is fixedly installed. The tie bar 11 is manually pushed upward, the tie bar 11 drives the hook plate 8 to move vertically upward and disengage from the top end of the steel bar frame 1 through the support seat a10 and the sliding sleeve a9, and then the universal wheels 6 are unlocked and the base 5 is pushed away from the steel bar frame 1, so that the hook plate 8 is completely disengaged from the steel bar frame 1.

When the hook plate 8 is completely separated from the steel bar frame 1, the acting force on the pull rod 11 is removed, and the hook plate 8 is quickly reset relative to the support rod 7 under the action of self weight.

In the process of erecting steel wire rope 4 by pulling steel template 2, the tower crane is not needed to participate continuously, the tower crane can participate in other operations in the installation process of steel template 2, and the utilization rate of the tower crane is effectively improved.

In conclusion, the beneficial effects of the invention are as follows: the invention realizes the vertical installation of the steel formwork 2 by driving the winding wheel 39 to wind the steel wire rope 4 through the electric driving module B42 during the vertical installation of the steel formwork 2. In the process of erecting the steel formwork 2, the inclination angles of the steel cables 4 on the two sides of the fixed pulley A25 are changed constantly, so that in order to avoid the situation that the two sides of the steel bar frame 1 in the cast-in-place wall are deformed or inclined due to unbalanced stress caused by the change of the acting force of the steel cables 4 on the two sides of the fixed pulley A25 due to the acting direction, the relative positions of the round pin 48 and the scale 43 are paid attention to all the time in the process of erecting and installing the steel formwork 2. If the round pin 48 is about to move out of the range of the scale 43, the electric drive module a19 is immediately controlled to operate and drive the movable pulley a21, the movable pulley B23 and the movable pulley C33 to vertically move, the movement of the movable pulley a21 enables the inclination angle of the steel wire rope 4 on the side of the movable pulley a21 on the fixed pulley a25 to be adjusted, the steel wire ropes 4 on the two sides of the fixed pulley a25 are always piled to be equal in the process of erecting the steel formwork 2, the stress balance on the two sides of the steel bar frame 1 is indirectly ensured, only the hook plate 8 generates a vertical upward supporting force, and the steel bar frame 1 is effectively prevented from being deformed or inclined due to the unbalance of acting forces on the two sides. The movement of the movable sheave C33 makes it possible to make up for the slack or tension of the wire rope 4 due to the change in the angle of inclination.

In the process of vertically installing the steel formwork 2, the steel formwork 2 is vertically installed by fully utilizing the existing reinforcing steel frame 1 as a support, and equipment cost is reduced without additionally adding equipment. Meanwhile, the tower crane can be withdrawn after the steel template 2 is lifted and placed on a construction floor by the tower crane, the whole erection installation process of the steel template 2 is free from the participation of the tower crane, the use of the tower crane in other operations is not influenced, and the utilization rate of the tower crane is greatly improved.

Claims (6)

1. The utility model provides a steel template hoist device of wallboard is pour to prefabricated building now which characterized in that: the steel wire rope hanging device comprises a steel wire rope, a base, universal wheels, supporting rods, hook plates, an electric drive module A, a movable pulley B, a fixed pulley A, a movable pulley C, a fixed pulley B, a winding wheel and an electric drive module B, wherein the supporting rods are hinged to the base provided with the four universal wheels, and the hook plates supported by a steel bar frame in a cast-in-situ wall body are matched on the supporting rods in a sliding mode along the length direction of the supporting rods; the top end of the hook plate is provided with a fixed pulley A; a winding wheel driven by the electric drive module B is installed on the base, and one end of a steel wire rope wound on the winding wheel vertically winds the fixed pulley B and then is matched with a hanging ring at the top end of the steel template through the movable pulley C, the movable pulley B, the movable pulley A and the fixed pulley A in sequence; the movable pulley C, the movable pulley B and the movable pulley A vertically move in the same direction and are driven by the electric drive module A, and the vertical movement speed of the movable pulley A and the vertical movement speed of the movable pulley B are twice as fast as that of the movable pulley C;

the top end of the hook plate and the shaft of the fixed pulley A are provided with a structure which marks two parts of steel wire ropes at two sides of the fixed pulley A and has symmetrical and equal inclination angles.

2. The steel formwork hoisting device for the prefabricated cast-in-place wall board of the building as claimed in claim 1, wherein: the side wall of the hook plate is provided with a sliding sleeve A which is in sliding fit with the supporting rod; a support A is arranged on the side wall of the sliding sleeve A, and a manual pull rod is hinged on the support A; the fixed pulley A is arranged at the top end of the hook plate through the U seat C so as to increase the height of the fixed pulley A; the base is provided with a U seat E, and the winding wheel is arranged in the U seat E; and a shaft on which the winding wheel is positioned is in rotating fit with the U seat E, and the shaft on which the winding wheel is positioned is in transmission connection with an output shaft of the electric drive module B through a coupler.

3. The steel formwork hoisting device for the prefabricated cast-in-place wall board of the building as claimed in claim 1, wherein: two vertical guide sleeves are arranged on the base, and a sliding rod vertically slides in each guide sleeve; the top ends of the two sliding rods are fixedly connected through a lifting platform; the movable pulley A for supporting the steel wire rope is arranged on the lifting platform through the U seat A, and the movable pulley B for supporting the steel wire rope is arranged on the lifting platform through the U seat B; two fixing sleeves which are arranged between the two guide sleeves and are vertically distributed at intervals are rotationally matched with vertical screw rods; the screw rod is in threaded fit with the lifting platform; the bevel gear A mounted on the output shaft of the electric drive module A is meshed with the bevel gear B mounted on the screw rod.

4. The steel formwork hoisting device for the prefabricated cast-in-place wall panel of the building as claimed in claim 1 or 3, wherein: the base is provided with a guide seat, and a U-shaped sliding seat vertically slides in the guide seat; the movable pulley C is arranged in the sliding seat; a U seat D is installed on the guide sleeve, a fixed shaft is installed in the U seat D, a shaft sleeve is rotatably matched on the fixed shaft, and a straight gear A and a straight gear B are coaxially installed on the shaft sleeve; the straight gear A is meshed with a vertical rack A arranged on the lifting platform, and the straight gear B is meshed with a vertical rack B arranged on the sliding seat.

5. The steel formwork hoisting device for the prefabricated cast-in-place wall board of the building as claimed in claim 4, wherein: the sliding seat is symmetrically provided with two guide blocks which respectively slide in two guide grooves on the inner sides of the two guide seats; the fixed pulley B is arranged on the guide seat through two support seats B; the ratio of the reference circle diameter of the straight gear A to the reference circle diameter of the straight gear B is 2: 1.

6. The steel formwork hoisting device for the prefabricated cast-in-place wall board of the building as claimed in claim 1, wherein: sliding sleeves B are respectively nested and slid on the steel wire ropes at the two sides of the fixed pulley A, and each sliding sleeve B is rotatably matched with the shaft of the fixed pulley A through two symmetrical swinging plates; each sliding sleeve B is provided with a V-shaped plate, and a round pin which forms hinged connection with the two V-shaped plates slides in sliding grooves on the two V-shaped plates; and a scale for marking the position of the round pin is arranged at the top end of the hook plate, and the round pin is positioned in the scale range to indicate that the inclination angles of the steel wire ropes at the two sides of the fixed pulley A are equal.

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