CN-117468730-B - Construction device and method for site installation of prefabricated stairway

Abstract

The invention relates to a construction device for site installation of a prefabricated staircase, which belongs to the field of constructional engineering and comprises a scissor type lifter, wherein an inclined plate is arranged above the scissor type lifter through an inclined assembly, the inclined assembly is used for controlling the inclination degree of the prefabricated staircase, two groups of left clamping plates are arranged on the left side of the inclined plate, two groups of right clamping plates are arranged on the right side of the inclined plate, two groups of clamping mechanisms are arranged in the inclined plate, the clamping mechanisms are arranged on the inclined plate in a manner of placing the prefabricated staircase, the left clamping plates and the right clamping plates can be driven to be close to each other to clamp the prefabricated staircase, and a buffer assembly is arranged on one side of the left clamping plate, so that the impact load of the prefabricated staircase to the left clamping plates due to sliding of the buffer assembly in the inclined plate inclination process can be reduced.

Inventors

• ZHENG HONGYUN
• JIANG PEIJIE
• WANG WEIXIAO
• QIU JIAN
• SUN PENG

Assignees

• 中启胶建集团有限公司

Dates

Publication Date

20260505

Application Date

20230927

Priority Date

20230616

Claims (6)

1. 1. A construction device for site installation of a prefabricated staircase comprises a scissor type lifter (1) and is characterized in that a tilting plate (3-6) is arranged above the scissor type lifter (1) through a tilting assembly (3), the tilting assembly (3) is used for controlling the tilting degree of the prefabricated staircase (11), two groups of left clamping plates (6) are arranged on the left side of the tilting plate (3-6), two groups of right clamping plates (7) are arranged on the right side of the tilting plate (3-6), two groups of clamping mechanisms (4) are arranged in the tilting plate (3-6), and when the prefabricated staircase (11) is placed on the tilting plate (3-6), the clamping mechanisms (4) can drive the left clamping plates (6) and the right clamping plates (7) to be close to each other so as to clamp the prefabricated staircase (11), and a buffer assembly (5) is arranged on one side of the left clamping plates (6), so that the impact of the left clamping plates (11) to the prefabricated staircase (6) can be reduced in the tilting process of the tilting plate (3-6); The clamping mechanism (4) comprises two telescopic rods (4-1) capable of transversely sliding in the inclined plates (3-6), the left telescopic rod (4-1) is movably connected with the left clamping plate (6), and the right telescopic rod (4-1) is movably connected with the right clamping plate (7); The telescopic rod (4-1) is transversely and elastically connected with a first rack rod (4-2) in a sliding manner, a first spring (4-3) is arranged between the first rack rod (4-2) and the telescopic rod (4-1), a first meshing part (4-2-1) is arranged on the first rack rod (4-2), a pressing component (4-4) capable of driving the first rack rod (4-2) to transversely slide is arranged on one side of the first rack rod (4-2), a second spring (4-5) is arranged between the end part of the first rack rod (4-2) and the inside of the inclined plate (3-6), and the clamping mechanism (4) further comprises a retraction component (4-6) which is arranged on one side of the right clamping plate (7) and can drive the right clamping plate (7) to withdraw in the process of approaching and clinging to a wall in the prefabricated stairway (11); The pushing assembly (4-4) comprises a second rack bar (4-4-1) capable of longitudinally sliding in the inclined plate (3-6), and an axle (4-4-3) arranged in the inclined plate (3-6), wherein the second rack bar (4-4-1) is provided with a second meshing part (4-4-2), a pinion (4-4-4) and a large gear (4-4-5) are rotatably connected to the axle (4-4-3), the pinion (4-4) is fixedly connected with the large gear (4-4-5), the pinion (4-4) can be meshed with the second meshing part (4-4-2) of the second rack bar (4-4-1), and the large gear (4-4-5) can be meshed with the first meshing part (4-2-1) of the first rack bar (4-2); The retraction assembly (4-6) comprises a support frame (4-6-1) fixedly connected with the telescopic rod (4-1), a supporting rod (4-6-2) is transversely and elastically connected to the support frame (4-6-1) in a sliding manner, a third spring (4-6-3) is arranged between the support frame (4-6-1) and the supporting rod (4-6-2), a chute (4-6-4) is formed in the supporting rod (4-6-2), and the chute (4-6-4) can be matched with a boss (7-1) fixedly connected in a right clamping plate (7) in the transverse sliding process of the supporting rod (4-6-2) to drive the right clamping plate (7) to rotate along the axial direction of the telescopic rod (4-1) so as to withdraw the right clamping plate (7).
2. 2. The construction device for site installation of prefabricated stairway according to claim 1, wherein the tilting assembly (3) comprises two supporting columns (3-1) which are symmetrically distributed and fixedly connected with the scissor lift (1), the supporting columns (3-1) are hinged to the middle of the tilting plate (3-6), the tilting assembly (3) further comprises a motor (3-5) arranged on the scissor lift (1), an output end of the motor (3-5) penetrates through the top of the scissor lift (1) and is fixedly connected with a screw rod (3-3), a stud (3-2) is connected to the screw rod (3-3) in a threaded mode, a supporting plate (3-4) is hinged to the stud (3-2), and the supporting plate (3-4) can slide at the bottom of the tilting plate (3-6).
3. 3. A construction device for site installation of prefabricated stairway according to claim 2, wherein the buffer assembly (5) comprises a sliding rod (5-1) which is arranged at one side of the left clamping plate (6) and can transversely slide in the inclined plate (3-6), the buffer plate (5-2) is fixedly connected to the sliding rod (5-1), a fourth spring (5-3) is arranged between the buffer plate (5-2) and the left clamping plate (6), the buffer assembly (5) further comprises a sliding plate (5-4) which is arranged inside the inclined plate (3-6) and can transversely slide in the inclined plate (3-6), the sliding plate (5-4) is fixedly connected with the supporting plate (3-4), and two baffle plates (5-5) which can transversely slide in the inclined plate (3-6) are fixedly connected to the sliding plate (5-4).
4. 4. A construction equipment for the on-site installation of a prefabricated staircase according to claim 1, characterized in that the telescopic rod (4-1) and the first rack rod (4-2) are provided with stop pins (4-7) respectively, which prevent the telescopic rod (4-1) and the first rack rod (4-2) from rotating when the prefabricated staircase (11) is tilted.
5. 5. A construction equipment for the on-site installation of prefabricated stairways according to claim 1, characterised in that the scissor lift (1) is provided with universal wheels (2) at the bottom.
6. 6. A method for installing a prefabricated staircase in situ, which is applicable to the construction device for installing the prefabricated staircase in situ as claimed in claim 3, and is characterized in that: firstly, hanging a prefabricated staircase (11) on a inclined plate (3-6) in a horizontal state by workers, abutting and pressing down the bottom of the prefabricated staircase (11) with a second rack bar (4-4-1), and clamping the prefabricated staircase (11) by mutually approaching a left clamping plate (6) and a right clamping plate (7); secondly, starting a scissor type lifter (1) to lift the prefabricated staircase (11) to a preset position; Starting a motor (3-5), lifting a stud (3-2), tilting an inclined plate (3-6), and tilting a prefabricated staircase (11) placed on the inclined plate (3-6) so that the tilting angle of the prefabricated staircase (11) is matched with the installation angle; Moving the scissor type lifter (1) to enable the prefabricated staircase (11) to approach and cling to a wall, centering a reserved screw hole (11-1) on the prefabricated staircase (11) with a reserved bolt (10) on the ground (12) and the middle platform (9), and then starting the scissor type lifter (1) to enable the prefabricated staircase (11) to descend to reach an installation position to finish the installation of the prefabricated staircase (11) between the ground (12) and the middle platform (9); and fifthly, moving the scissor type lifter (1) to finish the withdrawal of the device.

Description

Construction device and method for site installation of prefabricated stairway Technical Field The invention relates to the field of constructional engineering, in particular to a construction device and a construction method for site installation of prefabricated stairways. Background Compared with the traditional cast-in-situ stairs, the prefabricated stairs are installed after being prefabricated and molded in a factory and transported to a construction site, and the cast-in-situ stairs do not need to be supported and maintained by watering, so that the problems of complex cast-in-situ stairs process and low construction efficiency are solved, the construction period is greatly shortened, more and more projects are adopted, generally, the traditional method for installing the prefabricated stairs is hoisting, namely, the prefabricated stairs are hoisted to reserved installation positions through operating heavy tower crane openings, so that reserved bolts on floors penetrate reserved screw holes at two ends of the prefabricated stairs, and when the prefabricated stairs are installed in two small flat houses, the installation cost is high and the installation operation difficulty is high by using large hoisting equipment. Based on the above, the present invention has devised a construction apparatus for site installation of prefabricated stairway and a method thereof, so as to solve the above-mentioned problems. Disclosure of Invention The invention aims to provide a construction device and a construction method for on-site installation of prefabricated stairways, which are used for solving the problems that in the prior art, when the prefabricated stairways are installed in two-layer small flat houses, the installation cost is high and the installation operation difficulty is high by using large hoisting equipment. The construction device for the on-site installation of the prefabricated stairway comprises a scissor type lifter and is characterized in that an inclined plate is arranged above the scissor type lifter through an inclined assembly, the inclined assembly is used for controlling the inclination degree of the prefabricated stairway, two groups of left clamping plates are arranged on the left side of the inclined plate, two groups of right clamping plates are arranged on the right side of the inclined plate, two groups of clamping mechanisms are arranged in the inclined plate, the clamping mechanisms are placed on the inclined plate on the prefabricated stairway and can drive the left clamping plates and the right clamping plates to be close to each other to clamp the prefabricated stairway, and a buffer assembly is arranged on one side of the left clamping plates and can reduce impact load of sliding of the prefabricated stairway on the left clamping plates in the inclined plate inclination process. The clamping mechanism comprises two telescopic rods capable of transversely sliding in the inclined plate, the left telescopic rod is rotationally connected with the left clamping plate, the right telescopic rod is rotationally connected with the right clamping plate, a first rack rod is transversely and elastically connected with the telescopic rod in a sliding mode, a first spring is arranged between the first rack rod and the telescopic rod, a first meshing part is arranged on the first rack rod, a pressing component capable of driving the first rack rod to transversely slide is arranged on one side of the first rack rod, a second spring is arranged between the end part of the first rack rod and the inside of the inclined plate, and the clamping mechanism further comprises a retraction component which is arranged on one side of the right clamping plate and can drive the right clamping plate to withdraw in the process of approaching and clinging to a wall of a prefabricated stair. The pressing assembly comprises a second rack bar capable of longitudinally sliding in the inclined plate and a wheel shaft arranged in the inclined plate, wherein the second rack bar is provided with a second meshing part, a pinion and a large gear are rotatably connected to the wheel shaft, the pinion is fixedly connected with the large gear, the pinion can be meshed with the second rack part of the second rack bar, and the large gear can be meshed with the first rack part of the first rack bar. Preferably, the retraction assembly comprises a support frame fixedly connected with the telescopic rod, a supporting rod is transversely and elastically connected to the support frame in a sliding manner, a third spring is arranged between the support frame and the supporting rod, a chute is arranged on the supporting rod, and the chute can be matched with a boss fixedly connected in a right clamping plate in the transverse sliding process of the supporting rod to drive the right clamping plate to rotate along the axial direction of the telescopic rod so as to withdraw the right clamping plate. Preferably, the tilting assembl